JP5116630B2 - Non-sliding ball valve - Google Patents

Description

  The present invention relates to a valve disposed on a transfer path for transferring an object such as a fluid, and more particularly to a non-sliding ball valve in which a valve body that is rotatable around a predetermined axis is built in a housing. .

  Conventionally, there are various types of valves arranged on the transfer path to block or switch the transfer path for transferring an object such as liquid or gas, and one of them is a ball valve. Generally known.

  The ball valve has a valve body in which a communication passage penetrating through a virtual plane orthogonal to a predetermined axis is formed, a valve body housing chamber in which the valve body is housed, and a valve in the valve body housing chamber. At least two main passages communicating with each other via a body communication passage (for example, two main passages upstream and downstream in the case of a two-way valve, three branched main passages in the case of a three-way valve) ) And an annular seat member disposed around the opening of each main passage on the side of the valve body accommodating chamber.

  In such a ball valve, the outer peripheral surface of the valve body is always in pressure contact with the seat member, and the valve body can be rotated around a predetermined axis while the valve body is in pressure contact with the seat member. As a result, the ball valve secures the sealing performance (liquid tightness and air tightness) between the valve body and the housing by the seat member, and rotates the valve body around a predetermined axis, thereby allowing the ball valve to pass through the communication path. It is possible to switch between a state in which the main passage of the housing is in communication and a state in which the main passage is blocked at a non-penetrating portion between both end openings of the communication passage of the valve body.

  However, as described above, the general ball valve rotates the valve body in a state where the surface pressure is always applied to the seat member (the valve body is in pressure contact with the seat member). When the is repeatedly rotated, the valve body and the seat member are worn. As a result, the ball valve configured as described above has a problem that it is impossible to seal between the valve body and the seat member, and the main passage cannot be reliably blocked.

  Therefore, a non-sliding ball valve that can suppress or prevent the wear of the seat member has been provided (see, for example, Patent Documents 1 and 2). As shown in FIGS. 6 and 7, in the non-sliding ball valve, the valve body 2 ′ can rotate around a predetermined axis L in the valve body housing chamber 30 ′ of the housing 3 ′, as in the conventional ball valve. The valve body 2 ′ can be rotated in a non-contact state with respect to the seat member 4 ′ so that the seat member 4 ′ is not worn by the rotation of the valve body 2 ′. Yes.

  In the non-sliding ball valve 1 ′, the valve body 2 ′ is supported on one end side in the predetermined axis L direction (for example, the upper or lower portion of the valve body 2 ′). The other end side in the direction of the predetermined axis L (when the upper part of the valve body 2 'is supported, the lower part of the valve body 2' is supported, and when the lower part of the valve body 2 'is supported, the valve body 2 ′), the valve body 2 ′ tilts toward the seat member 4 ′ with one end side in the predetermined axis L direction as a tilting fulcrum, and both ends of the communication path R1 ′ of the valve body 2 ′. A non-penetrating portion formed between the openings is in close contact with the sheet member 4 ′ to block the main passages R2 ′ and R3 ′. The seat member 4 ′ of the non-sliding ball valve 1 ′ is generally made of a hard material (for example, a metal material such as stainless steel or a resin material such as Teflon).

  As a result, the non-sliding ball valve 1 ′ having the above configuration does not wear the valve body 2 ′ or the seat member 4 ′ when the valve body 2 ′ is rotated. Even if switching and the like (rotation of the valve body 2 ') are repeated, the valve body 2' and the seat member 4 'can be satisfactorily sealed over a long period of time and are being adopted in various fields.

That is, the non-sliding ball valve 1 ′ having the above configuration is recognized for its excellent performance in various fields, and not only a transfer path for transferring fluid such as liquid or gas (pipe system for circulation), but also powder, It is also being adopted as a moving path for transporting fluid containing congestion, miscellaneous waste (crushed waste), and the like.
JP 2008-95811 direction US Pat. No. 3,515,371

  However, the non-sliding ball valve 1 ′ having the above-described configuration is used when the valve body 2 ′ is rotated or when the main passages R2 ′ and R3 ′ of the housing 3 ′ are communicated via the communication passage R1 ′. Since a gap is formed between the body 2 ′ and the sheet member 4 ′, when a powder, a fluid containing a congested material, or a miscellaneous waste is transferred, foreign matter (for example, a wire such as a wire, a string material, A small-diameter lump or the like) enters between the valve body 2 ′ and the seat member 4 ′, and blocks the main passages R2 ′ and R3 ′ (the valve body 2 ′ is tilted toward the seat member 4 ′). ) Sometimes, foreign matter may be caught between the valve body 2 ′ and the seat member 4 ′.

  For this reason, the non-sliding ball valve 1 ′ having the above-described configuration has a foreign body between the valve body 2 ′ and the seat member 4 ′ so that the valve body 2 ′ cannot be pressed against the seat member 4 ′. There is a problem that a gap is formed in the main passages R2 ′ and R3 ′, which cannot be completely blocked.

  Further, the non-sliding ball valve 1 ′ has a valve body 2 so as to ensure adhesion (pressure contact force) between the valve body 2 ′ and the seat member 4 ′ when the main passages R2 ′ and R3 ′ are blocked. Since the tilt amount (movement amount) of “is set, even when a foreign object is sandwiched between the valve body 2 ′ and the seat member 4 ′, the valve body 2 ′ is set to the set movement amount. Try to tilt.

  As a result, a large force is locally applied to a portion where the foreign matter between the valve body 2 ′ and the seat member 4 ′ is sandwiched, and the seat member 4 ′ and the valve body 2 ′ may be dented or damaged. is there. Then, even if the foreign body existing between the seat member 4 ′ and the valve body 2 ′ is removed and then the valve body 2 ′ is tilted and crimped to the seat member 4 ′, the valve body 2 ′ and the seat member 4 ′ As a result of scratches and the like forming a gap between the valve body 2 ′ and the seat member 4 ′, the main passages R2 ′ and R3 ′ cannot be completely sealed without sealing between the valve body 2 ′ and the seat member 4 ′. There was a problem that it could not be blocked.

  Accordingly, the present invention provides a non-sliding ball valve capable of blocking the main passage without damaging the seat member or the valve body even if a foreign object intervenes between the valve body and the seat member. It is an issue to provide.

The non-sliding ball valve according to the present invention includes a valve body in which a communication passage that passes through a virtual plane that is orthogonal or substantially orthogonal to a predetermined axis is formed, and a valve body housing chamber that houses the valve body. A housing formed with at least two main passages that communicate with each other via a communication passage of the valve body in the valve body housing chamber, and the periphery of the communication passage of the valve body that connects the main passages. And an annular seat member disposed in the housing corresponding to at least one of the main passages, and the valve body rotates about the predetermined axis in a non-contact state with respect to the seat member. And can be tilted to the sheet member side with one end side in the axial direction as a fulcrum in a state where the non-penetrating portion formed between the openings at both ends of the communication path faces the sheet member. Provided, and the valve body In a non-sliding ball valve configured such that the non-penetrating portion presses against the seat member by tilting toward the member side and blocks the main passage, it is arranged on the valve body housing chamber side of at least one of the main passages The holder is provided so as to be movable in the direction of the hole center line of the main passage while maintaining a liquid-tight state or an air-tight state with respect to the housing, and a connection passage for communicating the main passage and the communication passage is formed. And an urging means that is interposed between the holder and the housing and urges the holder toward the valve body when the holder moves from at least a specified position on the valve body housing chamber side to the main passage side, the sheet member is made of an elastically deformable soft material, the holder is capable of holding is constituted by a projecting sheet member on the valve body side at the opening around the valve body side connecting channels embodiments, the main passage When foreign material between the valve and the seat member when the blocking is interposed, elastic deformation of the sheet member, or that it is configured to dodge foreign object by the movement of the elastic deformation and the holder of the sheet member Features. Here, the “specified position” is a holder home position, which means a position of the holder where the tilted valve body can be properly pressed against the seat member.

  According to the non-sliding ball valve configured as described above, if a small foreign object is interposed between the valve body and the seat member and the main passage is blocked, the foreign object is pressed against the seat member as the valve body is tilted. As a result, the sheet member is locally elastically deformed in a state of being in close contact with the foreign matter. As a result, the seat member is in a state of partially trapping foreign matter, so that the tilting of the valve body is not hindered, and when the valve body tilts by a predetermined amount, the valve body presses against the sheet member and the main flow path is Will be blocked. Then, by removing the foreign matter from between the valve body and the seat member, the elastically deformed portion of the seat member is restored to the original state, so that the main passage after that can be reliably shut off. It becomes a state.

  Then, if the main passage is cut off with a large foreign object (a large foreign object that cannot be wrinkled by the elastic deformation of the sheet member) interposed between the valve body and the seat member, the foreign body is As a result of being pressed against the member, even in this case, the sheet member is locally elastically deformed in a state of being in close contact with the foreign material, but since the foreign material is large, the foreign material does not completely enter the recess due to the elastic deformation of the sheet member. The presence of the foreign matter cannot be absorbed by the elastic deformation of the seat member, and the foreign matter projects from the seat member to the valve body side. In this state, when the valve body is moved by the set amount of movement (tilt amount), the foreign object pushes the holder to the main passage side via the seat member as the valve body is tilted (action of the pressing force). Then, it moves (escapes) against the urging force of the urging means.

  Accordingly, an excessive force does not act on the sheet member in a state exceeding the limit of elastic deformation, so that the sheet member is prevented from being broken or damaged. Then, by removing the foreign matter intervening between the valve body and the seat member, the urging means urges the holder to return to the specified position, and the seat member is restored to its original state by its own elasticity. Thereby, it will be in the state which can be reliably performed also about interruption | blocking of the main channel | path after that.

  As one aspect of the present invention, the holder has an outer diameter set to be larger than an inner diameter of the main passage, the housing includes a holder accommodating portion that accommodates the holder, and the holder accommodating portion is a valve element accommodating chamber. Is formed continuously with respect to at least one of the main passages on the side of the valve body housing chamber so as to open toward the inner side, and the inner diameter is set to be larger than the outer diameter of the holder. The holder housing portion is interposed between the holder and the surface facing the valve body housing chamber, and an annular sealing member is interposed between the inner circumferential surface defining the holder housing portion and the outer circumferential surface of the holder. It may be disguised. In this way, even if the holder for holding the sheet member is movably provided, the seal between the holder and the housing can be reliably achieved due to the presence of the sealing member.

  In this case, the holder accommodating portion has an inner diameter set larger than the inner diameter of the main passage, a first enlarged portion continuous with the main passage, and an inner diameter set larger than the inner diameter of the first enlarged portion. The first enlarged portion and a second enlarged portion that opens toward the valve body storage chamber, and the holder is a holder in a state in which a sheet member is fitted to one end portion on the valve body storage chamber side. A holder main body accommodated in the accommodating portion, and a fixing member for fixing the sheet member fitted to the holder main body, the holder main body being a cylindrical first main body portion accommodated in the first enlarged portion; A cylindrical shape that is formed continuously with the first main body so as to be concentric or substantially concentric with the first main body, and whose outer diameter is set larger than that of the first main body and is accommodated in the second enlarged portion. The second main body portion, and the second main body portion so as to be concentric or substantially concentric with the second main body portion, A cylindrical third body part to which the sheet member is fitted, and the fixing member is fitted to the sheet member so as to sandwich the sheet member fitted to the third body part together with the third body part. The biasing means is configured to be interposed between a surface defining the second enlarged portion and facing the valve body housing chamber, and the second main body portion, and the sealing member includes the first main body portion. Between the outer peripheral surface of the first enlarged portion and the inner peripheral surface of the first enlarged portion and at least one of the outer peripheral surface of the second main body portion and the inner peripheral surface of the second enlarged portion. .

  In this way, the sheet member made of a soft material is sandwiched between the third main body portion and the fixing member of the holder main body, and the minimum necessary portion of the sheet member that is pressed against the valve body is projected to the valve body side. can do. As a result, the sheet member can be protected by the holder (holder body and fixing member) from the object transferred between the main passages and foreign matter intervening between the valve body and the sheet member, and the object to be transferred is the waste It is possible to prevent the sheet member from being damaged unnecessarily even if it is unique. Further, the sealing member is at least between the outer peripheral surface of the first main body portion and the inner peripheral surface of the first enlarged portion, or between the outer peripheral surface of the second main body portion and the inner peripheral surface of the second enlarged portion. By interposing either one, the seal (liquid tightness or air tightness) between the holder and the housing can be reliably achieved without hindering the movement of the holder.

  As another aspect of the present invention, there may be provided a stopper for restricting movement of the holder at the specified position toward the valve body storage chamber. In this way, since the holder at the specified position does not unnecessarily move to the valve body side, the seat member can be maintained at a position where the valve body can be properly pressed. As a result, when the valve body is tilted, it can always be brought into close contact with the seat member in the same manner, and foreign matter enters between the valve body and the seat member in an unexpected manner. Etc. can be reliably prevented. Accordingly, it is possible to prevent the sheet member from being damaged in an unexpected situation.

  As another aspect of the present invention, the urging means may be constituted by an annular disc spring and disposed so as to be concentric or substantially concentric with the main passage. In this way, the urging of the holder can be performed uniformly in the circumferential direction, so that the holder can be returned smoothly and reliably.

  As described above, according to the non-sliding ball valve according to the present invention, even if a foreign object intervenes between the valve body and the seat member, the main passage is blocked without damaging the seat member or the valve body. An excellent effect of being able to be in a ready state can be achieved.

  Hereinafter, a non-sliding ball valve according to an embodiment of the present invention will be described with reference to the accompanying drawings.

  The non-sliding ball valve according to the present embodiment is a two-way valve that is disposed on a transfer path for transferring an object and switches between blocking and opening of the transfer path. That is, in the non-sliding ball valve according to the present embodiment, two pipes (not shown) constituting the transfer path are connected, and the object can be transferred between the pipes and the transfer is impossible. It can be switched to. The object to be transferred (object) is appropriately selected according to the equipment or plant where the transfer route is installed. For example, liquids or gases that do not contain foreign substances, powders, A body, a fluid containing foreign matter, and various crushed wastes may be selected for transfer.

  As shown in FIGS. 1 and 2, the non-sliding ball valve according to the present embodiment is formed with a communication path R1 that passes through a virtual plane (not shown) that is orthogonal or substantially orthogonal to a predetermined axis L. The valve body 2 and the valve body housing chamber 30 that houses the valve body 2 are formed, and two main passages R2 and R3 that communicate with each other via the communication passage R1 of the valve body 2 in the valve body housing chamber 30. And a ring 3 disposed in the housing 3 so as to correspond to the one main passage R2 so as to face the periphery of the communication passage R1 of the valve body 2 in which the main passages R2 and R3 communicate with each other. The sheet member 4 is provided.

  The valve body 2 is configured to be rotatable about the predetermined axis L in a non-contact state with respect to the seat member 4, and a non-penetrating portion formed between both end openings of the communication path R1. In a state facing the sheet member 4, the sheet member 4 is provided so as to be tiltable toward the sheet member 4 with the one end side in the axis L direction as a fulcrum.

  The non-sliding ball valve 1 according to this embodiment is configured to be rotatable in a state where the valve body 2 is not in contact with the seat member 4, that is, between the valve body 2 and the seat member 4. Is disposed on the valve body housing chamber 30 side of one of the main passages R2 on the premise that it can be rotated in a state where there is a gap in which foreign matter may enter (intervene). A holder provided with a connection passage R4 that is provided so as to be movable in the direction of the hole center line CL of the one main passage R2 while maintaining a dense state or an airtight state, and that connects the main passage R2 and the communication passage R1. 5 and between the holder 5 and the housing 3, the holder 5 is moved to the one main passage R2 side from the specified position on the valve body housing chamber 30 side when the holder 5 is moved to the valve body housing chamber. Energizing means 6 for energizing 30 (valve element 2) , And a stopper 7 for regulating the movement of the holder 5 is the valve chamber 30 (the valve body 2) side in the defined position. The specified position is a home position of the holder 5, and the valve body 2 is properly positioned with respect to the seat member 4 (a press contact portion 41 described later) in a state where the valve body 2 is tilted toward the seat member 4 side. It means the position of the holder 5 that can be pressed.

  The non-sliding ball valve 1 according to the present embodiment rotates the valve body 2 in a non-contact state with respect to the seat member 4 as described above, and then moves the valve body 2 to the seat member 4 side. In addition to the above-described configuration, the valve body 2 is inserted into the housing 3 so as to pass through the predetermined axis L, and the valve body 2 is positioned at one end side in the predetermined axis L direction (the lower end side of the housing 3 in this embodiment). An axial stem (hereinafter referred to as a first stem) 8 that supports the valve body 2 so as to be tiltable and rotates the valve body 2 around a predetermined axis L, and the opposite side of the first stem 8 so as to pass through the predetermined axis L The shaft is inserted into the housing 3 and urges the valve body 2 toward the seat member 4 on the other end side of the predetermined axis L (the upper end side of the housing 3 in the present embodiment) to tilt the valve body 2. And a stem 9 (hereinafter referred to as a second stem). .

  The valve body 2 is formed in a substantially spherical shape like the general ball valve 1, and the communication path R <b> 1 is formed in a straight hole passing through the substantial center of the valve body 2. The valve body 2 according to the present embodiment has a stem insertion portion (hereinafter referred to as a first stem) for inserting one end portion (a connection portion 80 to be described later) of the first stem 8 into a lower portion on one end side in a predetermined axis L direction. 20 (referred to as an insertion portion) is recessed. As shown in FIG. 3, the first stem insertion portion 20 includes a pair of first plane portions 20 a and 20 b extending along a direction orthogonal or substantially orthogonal to a predetermined axis L serving as a rotation center of the valve body 2. A pair of second plane portions that are formed across a predetermined axis L, are perpendicular to or substantially perpendicular to the pair of first plane portions 20a and 20b, and extend in a direction orthogonal to or substantially orthogonal to the predetermined axis L. 21a and 21b are formed across the predetermined axis L.

  Returning to FIGS. 1 and 2, the valve body 2 according to the present embodiment has a second stem 9, which will be described later, on an upper portion that is the other end side in the predetermined axis L direction (the side opposite to the first stem insertion portion 20). A pressed portion (hereinafter referred to as a first pressed portion) 22a that is pressed (biased) by the pressing portion 90 is provided. The first pressed portion 22 a is provided so that the pressing force by the pressing portion 90 acts toward the sheet member 4 in a state where the non-penetrating portion of the valve body 2 faces the sheet member 4. In the present embodiment, the valve body 2 has a stem insertion portion (hereinafter referred to as a second stem insertion portion) 22 into which the end portion of the second stem 9 is inserted.

  Similarly to the first stem insertion portion 20, the second stem insertion portion 22 is configured by a non-penetrating hole (concave portion), and an inner periphery (opening shape) of the second stem insertion portion 22 is set to a predetermined value. By adopting the shape, a part of the inner peripheral surface of the second stem insertion portion 22 is a first pressed portion 22a. Specifically, the second stem insertion portion 22 is defined by an inner peripheral surface including a first pressed portion 22a formed of a plane extending in substantially the same direction as the hole center line CL of the communication path R1. In a state where the non-penetrating portion of the body 2 and the one main passage R2 face each other (a state where the hole center of the communication passage R1 and the center line of the main passage are orthogonal to each other), the first pressed portion 22a (inner surface) is the valve body. 2 extends in a direction orthogonal to the direction allowing the displacement (tilting) of 2, and the pressing force of the pressing portion 90 acts in the direction of displacing the valve body 2.

  The non-sliding ball valve 1 according to the present embodiment is from a state in which the valve body 2 is displaced (tilted) toward the seat member 4 by pressing by the pressing portion 90 (a state in which the valve body 2 is in close contact with the seat member 4). The valve body 2 can be forcibly displaced to the opposite side (the valve body 2 can be separated from the seat member 4). Along with this, the inner peripheral surface that defines the second stem insertion portion 22 is another pressed portion (hereinafter referred to as a second pressed portion) made of a plane that faces the first pressed portion 22a substantially in parallel. ) 22b.

  The housing 3 has a valve body housing chamber 30 for housing the valve body 2 therein, and is formed so that two main passages (holes) R2 and R3 face each other across the valve body housing chamber 30. ing. That is, as described above, since the communication passage R1 of the valve body 2 is formed by a straight hole, the two main passages R2 and R3 are formed so as to be substantially concentric with the communication passage R1 of the valve body 2. . The two main passages R2 and R3 are set to have the same diameter as the inner diameter of the communication passage R1 of the valve body 2.

  The housing 3 according to the present embodiment includes a main frame 31 and a sub frame 32 attached to the main frame 31. The valve body accommodating chamber 30 is attached to the main frame 31 in a state of being attached to the sub frame 32. Is to be formed.

  The main frame 31 includes a main body portion 310 that defines a part of the valve body housing chamber 30 that houses the valve body 2, a first stem insertion portion 311 for inserting the first stem 8, and a second stem 9. A second stem insertion portion 312 for insertion and a cylindrical pipe connection portion 313 defining the other main passage R3 are configured.

  The main body 310 has a space in which the valve body 2 can be accommodated in a non-contact state. That is, the main body portion 310 is formed with a recess in which an opening (not numbered) for inserting the valve body 2 is formed on one side surface. The opening of the main body 310 is formed in a substantially circular shape centering on a center line CL orthogonal to a predetermined axis L of the valve body 2 through a substantial center of the valve body accommodating chamber 30 (concave portion). A step for fitting the annular gasket G is formed around the opening.

  The first stem insertion part 311 is provided in the lower part of the main body part 310, and has a stem insertion hole (hereinafter referred to as a first stem insertion hole) H1 penetrating substantially concentrically with a predetermined axis L of the valve body 2. Is formed. That is, the first stem insertion portion 311 communicates the inside and the outside (the concave portion (valve body accommodating chamber 30) of the main body portion 310 and the outside) so as to be orthogonal to the center line CL of the opening of the main body portion 310. A hole H1 is formed.

  The first stem insertion part 311 may be configured as a part of the main body part 310, but in this embodiment, another member (hereinafter referred to as a first member) 314 independent of the main body part 310 is used as the main body part 310. It is configured to be attached to. The first member 314 includes a cylindrical portion 314a and a flange portion 314b provided continuously with one end of the cylindrical portion 314a. The first member 314 has a bolt (not numbered) inserted through the flange portion 314b in a state where the cylindrical portion 314a is inserted into a through hole (not numbered) drilled in the lower portion of the main body 310. The main body 310 is fixed to the main body 310 by being screwed into a screw hole formed in the main body 310. In the first member 314, a stem insertion hole H1 is formed by a continuous hole of the cylindrical portion 314a and the flange portion 314b.

  The first stem insertion hole H <b> 1 is formed by a stepped hole penetrating the inside and the outside. A cylindrical gasket G (not numbered) is fitted in the first stem insertion hole H1 (portion opened outward), and can be rotated around a predetermined axis L by the gasket G. The sealing performance with the first stem 8 is ensured.

  The gasket G of the first stem insertion portion 311 according to this embodiment is pressed in the axial direction of the first stem 8 in a state where the gasket G is fitted in the first stem insertion hole H1 and the first stem 8 is inserted. Thus, the outer peripheral surface of the first stem 8 and the inner peripheral surface of the first stem insertion hole H1 are in close contact with each other, and the sealing performance can be secured while allowing the first stem 8 to rotate. Therefore, the non-sliding ball valve 1 according to this embodiment includes a gasket pressing member (hereinafter referred to as a first pressing member) 350 for pressing the gasket G of the first stem insertion portion 311. The first pressing member 350 includes a cylindrical pressing portion 351 that can be inserted into a portion of the first stem insertion hole H1 that is open outwardly, and one end portion of the pressing portion 351. And a bolt (not shown) inserted through the flange 352 is screwed into a screw hole (not shown) drilled in the flange portion 314b of the first member 314. By doing so, the pressing part 351 can press the gasket G.

  The second stem insertion portion 312 is provided on the opposite side of the first stem insertion portion 311 (upper portion of the main body portion 310) with the valve body accommodating chamber 30 (main body portion 310) interposed therebetween. The second stem insertion portion 312 is provided with a stem insertion hole (hereinafter referred to as a second stem insertion hole H2) penetrating substantially concentrically with a predetermined axis L of the valve body 2. In other words, the second stem insertion portion 312 communicates the inside and the outside (the recess (the valve body accommodating chamber 30) and the outside) of the main body portion 310 so as to be orthogonal to the center line CL of the opening of the main body portion 310. The hole H2 is drilled so as to substantially face the first stem insertion hole H1. The second stem insertion part 312 may be formed as a part of the main body part 310. However, in the present embodiment, a part of the main body part 310 and another member independent of the main body part 310 (hereinafter referred to as the main body part 310). 316).

  The second member 316 includes a cylindrical portion 317 and flange portions 318 a and 318 b provided at both ends of the cylindrical portion 317, and the pair of flange portions 318 a and 318 b and the cylindrical portion 317 are continuous. These holes constitute a part of the second stem insertion hole H2. A through hole (not numbered) that constitutes a part of the second stem insertion hole H <b> 2 is formed in the upper part of the main body part 310, and the hole of the second member 316 is connected to the through hole of the main body part 310. The second member 316 is arranged so as to be concentric, and then the bolt (not numbered) inserted into one flange portion 318a of the second member 316 is screwed into the main body portion 310, whereby the second member 316 is moved to the main body. These are fixed to the portion 310, and these constitute the second stem insertion portion 312.

  The second stem insertion hole H <b> 2 is formed of a stepped hole penetrating the inside and the outside. A cylindrical gasket G is fitted into the second stem insertion hole H2 (portion opened outward), and the second stem 9 is rotatable around a predetermined axis L by the gasket G. The seal is guaranteed.

  The gasket G of the second stem insertion portion 312 according to the present embodiment is pressed in the axial direction of the second stem 9 with the second stem 9 inserted through the second stem insertion hole H2. In this way, the outer peripheral surface of the second stem 9 and the inner peripheral surface of the second stem insertion hole H2 are in close contact with each other, and the sealing performance can be secured while allowing the second stem 9 to rotate. Therefore, the non-slidable ball valve 1 according to the present embodiment uses a gasket pressing member (hereinafter referred to as a second pressing member) 353 for pressing the gasket G as the second stem, like the first stem insertion portion 311. The insertion part 312 is also provided.

  The second pressing member 353 includes a cylindrical pressing portion 354 that can be inserted into a portion of the second stem insertion hole H2 that is open outwardly, and one end portion of the pressing portion 354. And a bolt portion (not shown) inserted through the flange portion 355 into a screw hole (not shown) drilled in the other flange portion 318b of the second member 316. The pressing portion 354 can press the gasket G by screwing.

  The pipe connection portion 313 of the main frame 31 has an internal main passage R3 communicating with the inside of the concave portion of the main body portion 310, and a center line CL of the main passage R3 is orthogonal to a predetermined axis L of the valve body 2. One end side is connected to the main body 310. That is, the pipe connection portion 313 communicates with the main body portion 310 so that the main passage R3 is substantially orthogonal to the axis L of the first stem 8 and is substantially concentric with the center CL of the concave portion (opening) of the main body portion 310. It is installed. The pipe connection portion 313 is provided with a flange 319 for connecting a pipe to the other end side.

  The sub-frame 32 is attached to the main frame 31, and has a connecting flange portion 320 fixed around an opening on one side surface of the main body portion 310, and a tubular pipe connecting portion 321 defining one main passage R2. And.

  The connecting flange portion 320 is connected to the plate-like fixing portion 320a and one surface of the fixing portion 320a (the surface opposite to the surface facing the main frame 31), and from the fixing portion 320a side. A reduced diameter portion 320b whose outer diameter is reduced toward the tip is provided, and a hole (a holder accommodating portion 300 described later) penetrating the fixed portion 320a and the reduced diameter portion 320b is formed. The fixing part 320a has a plurality of through holes (not shown) corresponding to a plurality of screw holes (not shown) formed around the opening of the main body part 310, and is inserted into the through holes. The subframe 32 can be fixed to the main frame 31 by screwing the bolt into the screw hole of the main body 310.

  The connection flange portion 320 may be fixed so as to be in close contact with one side surface of the main body portion 310. However, in this embodiment, the stopper 7 is sandwiched between the main frame 31 and the subframe 32. To fix. Therefore, the gasket G is fitted into a recess (not numbered) formed on the surface of the connecting flange portion 320 on the valve body accommodating chamber 30 side (the other surface of the fixed portion 320a). Thereby, in a state where the sub frame 32 is fixed to the main frame 31, the gasket G on the main body part 310 side is in close contact with one surface of the stopper 7, and the gasket G on the connecting flange part 320 side is in contact with the other side of the stopper 7. Close to the surface, it is possible to achieve a seal between them.

  The pipe connection portion 321 of the sub-frame 32 is connected at one end to the opening edge portion on the other surface side of the connection flange portion 320 (opening edge portion of the reduced diameter portion 320b). With the fixing portion 320a) attached to the main body portion 310, the internal main passage R2 faces the other main passage R3, and the hole center line CL of the main passage R2 has a predetermined axis L of the valve body 2 provided therein. It is provided to be orthogonal. A flange 322 for connecting a pipe is also provided at the other end of the pipe connection part 321.

  As a result, the housing 3 has a sub-frame 32 attached to the main frame 31 so as to define a valve body accommodating chamber 30 for housing the valve body 2 therein.

  Since the non-sliding ball valve 1 according to the present embodiment includes the holder 5 as described above, the housing 3 includes the holder accommodating portion 300 that accommodates the holder 5. In the non-sliding ball valve 1 according to the present embodiment, the housing 3 is composed of a main frame 31 and a sub frame 32, and the seat member 4 is disposed on one main passage R <b> 2 side with respect to the valve body 2. Therefore, the holder accommodating portion 300 that accommodates the holder 5 holding the sheet member 4 is formed in the sub-frame 32 (connection flange portion 320).

  As shown in FIG. 4, the holder accommodating portion 300 is continuously formed on the valve element accommodating chamber 30 side with respect to one main passage R2 so as to open toward the valve element accommodating chamber 30, and has an inner diameter. The outer diameter of the holder 5 is set larger than the outer diameter. More specifically, the holder accommodating portion 300 has an inner diameter set larger than the inner diameter of the main passage R2, a first enlarged portion 301 continuous with the main passage R2, and an inner diameter of the first enlarged portion 301. And a second enlarged portion 302 that is continuous with the first enlarged portion 301 and opens toward the valve body housing chamber 30. As a result, the housing 3 is formed with a stepped hole having a hole diameter that gradually increases toward the valve body housing chamber 30 on the one main passage R2 side of the two flow passages R2 and R3.

  Then, as described above, the first enlarged portion 301 and the second enlarged portion 301 and the second enlarged portion 301 can be moved in the direction of the hole center line CL of the main passage R2 while the holder 5 is maintained in a liquid-tight state or an air-tight state with respect to the housing 3. An annular groove 303 for fitting a sealing member (O-ring in this embodiment) S such as an O-ring or a square ring is formed on at least one of the inner peripheral surfaces of the enlarged portion 302. In the present embodiment, an annular groove 303 for fitting the O-ring S into the inner peripheral surface of the first enlarged portion 301 is formed. The annular groove 303 has a depth set smaller than the cross-sectional diameter (wire diameter) of the O-ring S, and the inner peripheral side of the inserted O-ring S projects inward from the inner peripheral surface of the first enlarged portion 301. It is formed so that it will be in the state.

  The seat member 4 is formed of an elastically deformable soft material, and depends on the properties of the object to be transferred through the transfer path and the usage environment of the non-slidable ball valve 1 (considering heat resistance and chemical resistance). For example, natural rubber, synthetic rubber (nitrile rubber, silicone rubber, acrylic rubber, styrene butadiene rubber, synthetic rubber such as fluorine rubber, ethylene propylene rubber), tetrafluoroethylene rubber resin, etc. The

  The sheet member 4 is formed in a ring shape, and includes an annular holder holding portion 40 held by the holder 5 and a pressure contact portion 41 that presses against the valve body 2. The holder holding portion 40 has a quadrangular cross section perpendicular to the circumferential direction of the sheet member 4, and the pressure contact portion 41 is on one surface side of the holder holding portion 40 facing the valve body housing chamber 30 side. It is formed over the entire circumference so as to follow the corner on the inner circumference side.

  The pressure contact portion 41 is formed in a semicircular cross section perpendicular to the circumferential direction of the sheet member 4, and a portion that becomes a string defining the semicircle is a holder holding portion so that the valve body 2 is pressure contacted with the arc portion. 40. In addition, the holder holding portion 40 has a corner portion on the inner peripheral side of the other surface directed to the side opposite to the valve body accommodating chamber 30 side, the other surface, and one surface directed to the valve body accommodating chamber 30 side. For each corner on the outer peripheral side, projecting portions 42 are projected over the entire circumference. The sheet member 4 is formed so that the projecting portions 42 projecting from the corners on the outer peripheral side of the other surface side of the holder holding portion 40 project outward in the radial direction of the sheet member 4. The holder 5 is sandwiched between a holder main body 50 (second main body portion 501) described later and a fixing member 52 described later.

  The holder 5 is set so that the inner diameter of the connection passage R4 corresponds to the inner diameter of the main passage R2 and the communication passage R1. In the present embodiment, since the communication path R1 of the valve body 2 and the main path R2 of the housing 3 are set to have the same diameter or substantially the same diameter, the communication path R1 and the main path are also connected to the connection path R4 of the holder 6. It is set to the same diameter or substantially the same diameter as R2. That is, the connection passage R4 according to the present embodiment is configured by a hole that has an inner diameter that is set to be the same diameter as or substantially the same as the communication path R1 and the main passage R2, and extends straight.

  The holder 5 according to the present embodiment is set to have an outer diameter larger than the inner diameter of the main passage R2 on the assumption that the holder 5 is accommodated in the holder accommodating portion 300. In other words, the holder 5 is set to have an outer diameter larger than that of the main passage R <b> 2 and slightly smaller than an inner diameter of the holder housing portion 300. More specifically, the holder 5 includes a holder main body 50 that is accommodated in the holder accommodating portion 300 in a state in which the sheet member 4 is fitted to one end portion on the valve body accommodating chamber 30 side, and the holder 5 is fitted to the holder main body 50. And a fixing member 52 for fixing the worn sheet member 4. The holder main body 50 is formed continuously with the first main body portion 500 so as to be concentric or substantially concentric with the first main body portion 500 accommodated in the first enlarged portion 301. The cylindrical second main body 501 whose outer diameter is set larger than that of the first main body 500 and is accommodated in the second enlarged portion 302 is concentric with or substantially concentric with the second main body. And a cylindrical third main body 502 formed continuously with the second main body 501 and into which the sheet member 4 is fitted.

  The first main body 500 is formed in a thin cylindrical shape, has an outer diameter set slightly smaller than the inner diameter of the first enlarged portion 301, and has a hole diameter equal to or substantially the same as the inner diameter of the main passage R2. They are set the same. Thereby, the O-ring S in the annular groove 303 formed in the inner peripheral surface of the first enlarged portion 301 is slightly deformed while the first main body portion 500 is accommodated (inserted) in the first enlarged portion 301. In this state, the first main body portion 500 is configured to be in a state of being pressed against the entire outer periphery.

  The second main body portion 501 is formed in a thick cylindrical shape as compared with the first main body portion 500, and one end of the first main body portion 500 is concentric or substantially concentric with the first main body portion 500. It is connected to the. The second body portion 501 has an outer diameter larger than that of the first body portion 500 and slightly smaller than an inner diameter of the second enlarged portion 302, and has a hole diameter of the main passage R2 (first body portion 500). Is set to be the same or substantially the same as the inner diameter of the hole. Thereby, the second main body 501 is accommodated (inserted) in the second enlarged portion 302 so that a slight gap is formed between the outer peripheral surface and the inner peripheral surface of the second enlarged portion 302. It has become.

  The second main body portion 501 is set so that the length in the axial direction is shorter than the length in the hole center direction of the second enlarged portion 302 and is accommodated in the second enlarged portion 302. A space for accommodating the biasing means 6 is formed between a surface facing the chamber 30 side (hereinafter referred to as one surface) and a surface facing the valve body housing chamber 30 that defines the second enlarged portion 302. It is supposed to be formed. For this reason, one end side of the first main body 500 accommodated in the first enlarged portion 301 is in a state extending to the second enlarged portion 302. In addition, the second main body portion 501 is formed with a fixing member abutting region Fa that abuts a fixing member 52 described later on an outer peripheral portion of a surface opposite to the one surface (hereinafter referred to as the other surface). . The fixing member contact area Fa is provided for positioning the fixing member 52, and is shifted to one surface side in the axial direction of the second main body 501 as compared with the inner peripheral side of the other surface. Is formed. That is, the second main body portion 501 has a step formed over the entire circumference in the radially outer region of the other surface.

  The third main body portion 502 is formed in a thin cylindrical shape as compared with the second main body portion 501, and one end of the third main body portion 502 other than the second main body portion 501 is concentric or substantially concentric with the second main body portion 501. Connected to the end. In the third main body 502 according to the present embodiment, the ring-shaped sheet member 4 is fitted. That is, the third main body 502 can fit the sheet member 4 so that the inner periphery of the sheet member 4 is in close contact with the outer peripheral surface. Further, the third main body portion 502 is set to have a length in the axial direction shorter than the holder holding portion 40 of the sheet member 4, and the press-fit portion 41 of the sheet member 4 that is externally fitted is smaller than the third main body portion 502. It is located outside. In the present embodiment, the length of the third body portion 502 is such that only the pressure contact portion 41 is positioned outside the third body portion 502 in a state where the sheet member 4 is externally fitted to the third body portion 502. Is set.

  The fixing member 52 is formed in an annular shape. Specifically, the fixing member 52 includes an annular fixing member main body 520 that is externally fitted to the sheet member 4 (holder holding portion 40) that is externally fitted to the third main body portion 502, and one end side of the fixing member main body 520. And a positioning portion 522 that protrudes radially outward from the other end surface of the fixing member main body 520. The fixing member main body 520 has an outer diameter that is smaller than the outer diameter of the second main body portion 501 and an inner diameter that is the outer diameter of the sheet member 4 (outside the protrusions 42 formed on the entire circumference in the circumferential direction). The diameter is the same as or slightly smaller than the diameter.

  Since the restricting portion 521 protrudes inward from the inner periphery of the fixing member main body 520, the restriction portion 521 has an annular shape like the fixing member main body 520. The restricting portion 521 is formed so as to come into contact with the surface of the seat member 4 (holder holding portion 40) facing the valve body accommodating chamber 30 side. Further, the amount of protrusion toward the inside of the restricting portion 521 is an amount that the tip of the restricting portion 521 does not reach the pressure contact portion 41 of the sheet member 4. As a result, when the fixing member 52 is externally fitted to the sheet member 4 externally fitted to the third main body 502, only the pressure contact portion 41 of the sheet member 4 is projected outward from the holder 5. Has been.

  The positioning portion 522 is connected to the annular other end surface of the fixing member main body 520 and extends outward in the radial direction. Thereby, the positioning part 522 is also formed in an annular shape. The positioning portion 522 is set to have the same or substantially the same outer diameter as that of the second main body portion 501. Further, the positioning portion 522 has an inner diameter larger than the inner diameter of the fixed member main body 520. Accordingly, the fixing member 52 has a step formed on the other end side, and only the positioning portion 522 is in contact with the outer peripheral side region (the fixing member contact region) Fa of the second main body portion 501. It has become. The fixing member 52 may be fixed to the holder 51 by fitting or screwing to the holder main body 51. However, in this embodiment, the positioning portion 522 of the fixing member 52 is fixed to the holder main body 51 with screws. Like to do. In this embodiment, since the stopper 7 is disposed so as to face the fixing member 522, the head of the screw that fixes the fixing member 522 is located in a counterbore provided in the fixing member 522. The screw does not protrude from the fixing member 522 to the outside.

  And the fixing member 52 is in the state which made the positioning part 522 contact | abut to the fixing member contact area | region Fa, the inner peripheral side (the inner peripheral side in which the positioning part 522 is not formed) of the other end surface of the fixing member main body 520 Of the second body portion 501 and the surface of the second body portion 501 facing the valve body housing chamber 30, and a protruding portion 42 that protrudes from a corner portion on the outer peripheral side of the other surface of the seat member 4 (holder holding portion 40). It is also configured to be in a state of sandwiching. As a result, the sheet member 4 is surrounded by the holder main body 50 and the fixing member 52 except for the press contact portion 41.

  Note that, as described above, the fixing member 52 according to the present embodiment has the positioning portion 522 protruding outward in the radial direction and set to the same diameter as the outer diameter of the second main body portion 501. The positioning portion 522 is positioned in the second enlarged portion 302 of the housing 3 in the same manner as the second main body portion 501 in the externally fitted state, and the valve body 2 is properly positioned with respect to the press contact portion 41. In a state where the holder 5 is positioned at a predetermined position where it can be pressed against the valve body, the surface of the positioning portion 522 facing the valve body housing chamber 30 side is on the valve body housing chamber 30 side of the connecting flange portion 320 (fixed portion 320a) It is designed to be almost flush with the facing surface.

  As the urging means 6, various types such as a coil spring and a disc spring can be adopted. In this embodiment, a disc spring is adopted. The disc spring is formed in an annular shape, and is interposed between the holder 5 and the housing 3 so that the center thereof is concentric or substantially concentric with the hole center line CL of the main passage R2 (connection passage R4). ing. In the present embodiment, the second main body portion 501 is formed on the holder 5 and the second enlarged portion 302 is formed on the housing 3, so that the second main body portion 501 and the second enlarged portion are formed as described above. Since the space is formed between the surface (inner surface) that delimits the portion 302 and faces the valve body housing chamber 30, the disc spring 6 is disposed in the space.

  In the present embodiment, the three disc springs 6 are provided so as to overlap in the direction of the hole center line CL, and are provided so as to have a natural length in a state where the holder 5 is located at a specified position. That is, the three disc springs 6 are sandwiched between the second main body portion 501 of the holder 5 and the inner surface of the second enlarged portion 302 at the specified position, but are not elastically deformed. ing. Therefore, in a normal state, the holder 5 has a predetermined pushing action (elastically deforms the disc spring by interference with the disc spring in a natural length state between the second main body portion 501 and the inner surface of the second enlarged portion 302. It is in a state where it is regulated so as not to move to the main passage R2 side from the specified position until a force action occurs.

  The stopper 7 is formed in an annular plate (doughnut plate) shape, and is fixed in a state where the outer peripheral end portion is sandwiched between the main frame 31 and the sub frame 32. The stopper 7 according to the present embodiment is sandwiched between the main frame 31 and the sub frame 32, but is actually bolted to the connection flange portion 320 of the sub frame 32. That is, by fixing the sub frame 32 to which the stopper 7 is fixed to the main frame 31 through bolts (not numbered), the stopper 7 is sandwiched between the main frame 31 and the sub frame 32. Yes.

  Accordingly, a plurality of through holes (not shown) through which bolts for fixing the sub frame 31 to the main frame 31 are inserted in the outer peripheral end portion of the stopper 7 are a plurality of through holes of the sub frame 31 (connection flange portion 320a). A hole and a plurality of screw holes in the main frame 30 (main body part 310) are formed corresponding to the arrangement. In this way, when the sub frame 32 is detached from the main frame 31, the stopper 7 can be removed from the main frame 31 together with the sub frame 32.

  The inner hole defined by the stopper 7 is set to a hole diameter at which the stopper 7 does not interfere with the valve body 2. The stopper 7 has a step formed on the inner peripheral edge on the side opposite to the valve body 2 side. As a result, the stopper 7 has a holder 5 (fixing member 52) fitted in an annular space formed by a step, and the holder 5 on the surface facing the side opposite to the valve body 2 side defining the annular space. Is supposed to regulate movement.

  In the present embodiment, the holder 5 (fixing member 52) is configured so that the positioning portion 522 is flush with one surface of the connecting flange portion 320 in a state where the holder 5 (fixing member 52) is located at the specified position. The fixing member main body 520 is located in the annular space 7. That is, the stopper 7 has a surface opposite to the valve body storage chamber 30 side facing the positioning portion 522 of the holder 5 and a portion protruding radially inward on the valve body storage chamber 30 side is a fixing member main body. 520 is opposed to 520. Thereby, the holder 5 is prevented from moving to the valve body accommodating chamber 30 side from the specified position.

  As shown in FIGS. 1 to 3, the first stem 8 is inserted into the housing 3 (first stem insertion portion 311), and the first stem insertion portion of the valve body 2 is disposed at one end located in the housing 3. 20 (between a pair of first plane portions 20a and 20b: a region surrounded by the pair of first plane portions 20a and 20b and the pair of second plane portions 21a and 21b) is formed. .

  The connecting portion 80 of the first stem 8 has a pair of protruding strips 81a, 81b extending in a direction orthogonal or substantially orthogonal to the predetermined axis L so as to face the pair of first flat portions 20a, 20b. A pair of third plane portions that are formed across a predetermined axis L, extend in a direction orthogonal to or substantially orthogonal to the direction in which the ridges 81a and 81b extend, and are parallel or substantially parallel to the predetermined axis L 82a and 82b are formed across the predetermined axis L.

  The pair of protrusions 81a and 81b are formed so as to have a slight gap with respect to the opposed first flat surfaces 20a and 20b. That is, the interval between the pair of protrusions 81a and 81b is set to be narrower than the interval between the pair of first flat surface portions 20a and 20b so that the valve body 2 can be tilted. The strips 81a and 81b are configured to be in line contact with the opposed first flat surfaces 20a and 20b.

  The third plane portions 82a and 82b are in surface contact with the second plane portions 21a and 21b on the opposite valve body 2 side, and the torque when the first stem 8 is rotated is the second plane portions 21a and 21b. It is comprised so that it can transmit to 3rd plane part 82a, 82b from, and the movement (tilting) of the valve body 2 along the contact surface is accept | permitted.

  As shown in FIGS. 1 and 2, a convex portion (not numbered) configured to make point contact with the valve body 2 is formed at the tip of the first stem 8 located in the housing 3. . The convex portion is formed such that the apex (the most protruding portion) is located on a predetermined axis L of the first stem 8 (valve element 2). In the present embodiment, the outer surface has a spherical shape. It is formed as follows. And this 1st stem 8 is provided so that the said convex part may contact the surface (plane) formed in the back part of the 1st stem insertion part 20 of the valve body 2. FIG. That is, the first stem 8 is attached so as to support the valve body 2 located above.

  The first stem 8 can be manually rotated by attaching a handle or the like, but in the present embodiment, a drive motor (not shown) such as a pulse motor that can arbitrarily set the rotation angle of the first stem 8. ) Is connected to the other end side, and is rotated around a predetermined axis L of the valve body 2 by being driven by the drive motor.

  The second stem 9 is inserted into the housing 3 (second stem insertion portion 312), and a pressing portion 90 protruding outward in the radial direction is provided on at least a part of the outer periphery of one end located in the housing 3. . The second stem 9 will be described in detail. The second stem 9 includes a stem main body 91 that is inserted into the housing 3, and the pressing portion 90 that partially protrudes from the outer periphery of the stem main body 91. It consists of

  The pressing portion 90 is an eccentric cam in which the center of curvature with respect to the curved outer peripheral surface is eccentric with respect to the axis of the stem body 91, and the second stem 9 is moved in a state where the non-penetrating portion of the valve body 2 faces the holder 5. When rotated around a predetermined axis L, the first pressed portion 22a of the valve body 2 is contacted or pressed.

  Further, the pressing portion 90 according to the present embodiment rotates the second stem 9 in the reverse direction around the predetermined axis L in a state where the non-penetrating portion of the valve body 2 faces the holder 5 (the first pressed portion on the pressing portion 90). By rotating the portion 22a in the direction opposite to the rotation direction), the second pressed portion 22b can be pressed, and the valve body 2 tilted (displaced) to the holder 5 side (displaced). The non-penetrating portion) can be forcibly separated from the holder 5.

  Similarly to the first stem 8, the second stem 9 having the above-described configuration can be manually rotated by attaching a handle or the like. However, in this embodiment, the rotation angle of the second stem 9 is arbitrarily set. A drive motor (not shown) such as a pulse motor that can be set is connected to the other end side. That is, the non-sliding ball valve 1 according to the present embodiment is configured to rotate the second stem 9 with a drive motor such as a pulse motor whose rotation angle can be arbitrarily set, so that the pressing portion 90 is tilted when the valve body 2 is tilted. The pressing force against the valve body 2 by the (eccentric cam) is configured to be a predetermined pressing force.

  Accordingly, when the pressing portion 90 is worn and the pressing force on the valve body 2 becomes smaller than a predetermined pressing force, the pressing portion 90 (second stem 9) is made larger by increasing the rotation angle of the second stem 9. A predetermined pressing force can be applied to the valve body 2 with the existing pressing portion 90 without replacement. The rotation angle of the drive motor (second stem 9) may be set manually. For example, a torque sensor for measuring the torque of the second stem 9 is provided, and the detection result of the torque sensor is a predetermined value. Of course, the rotation angle of the drive motor may be controlled so as to be automatically changed so that the pressing force by the pressing portion 90 becomes a predetermined torque.

  The non-sliding ball valve 1 according to the present embodiment is configured as described above. Next, the operation of the non-sliding ball valve 1 according to the present embodiment will be described.

  First, the operation in a state where no trouble has occurred when the object is transferred on the transfer path will be described. As shown in FIG. 1, the non-sliding ball valve 1 has two main passages R2 and R3 communicated with each other through a communication passage R1 of the valve body 2, and from the one main passage R2 side to the other main passage. The object is allowed to move from the R3 side (or from the other main passage R3 side to the one main passage R2 side). In this state, the two main passages R2, R3 and the communication passage R1 of the valve body 2 are concentric or substantially concentric, the valve body 2 is not in contact with the seat member 4, and the pressing portion 90 is The valve body 2 is not pressed against either the first pressed portion 22a or the second pressed portion 22b.

  And in order to interrupt | block main passage R2 from the state which permitted the transfer of the target object in this way, only the 1st stem 8 is rotated 90 degrees, maintaining the 2nd stem 9 as it is. If it does so, the rotational force of the 1st stem 8 will be transmitted to the 2nd plane parts 21a and 21b of the valve body 2 via the 3rd plane parts 82a and 82b, and the valve body 2 will also rotate 90 degrees.

  Thus, when rotating the valve body 2 without rotating the second stem 9, the pressing portion 90 (cam) does not press either the first pressed portion 22a or the second pressed portion 22b (valve body). The valve body 2 is maintained in a non-contact state with respect to the holder 5 and rotated around a predetermined axis L as a result. The penetrating part faces the one main passage R2 (holder 5) with a gap. In addition, the state in which the second flat surface portions 21a and 21b on the valve body 2 side that transmitted the torque of the first stem 8 and the third flat surface portions 82a and 82b of the first stem 8 are along the direction in which the valve body 2 is tilted. Even if the second flat surface portions 21a and 21b and the third flat surface portions 82a and 82b are in contact with each other, the valve body 2 is tilted. It becomes an allowed state.

  When the second stem 9 is rotated, as shown in FIG. 2, the pressing portion 90 presses the first pressed portion 22 a (the upper side of the valve body 2) and biases the valve body 2 toward the seat member 4. However, the valve body 2 tends to tilt by the urging. At this time, the valve body 2 tilts with the tip of the first stem 8 (support point supporting the valve body 2) as a tilting fulcrum, and the valve body 2 tilts a predetermined amount of movement, and the valve body 2 is not penetrated. The portion is pressed against the sheet member 4. Then, the seat member 4 (pressure contact portion 41) is elastically deformed by a deformation amount defined over the entire circumference by the pressure contact of the valve body 2, and the elasticity between the valve body 2 and the housing 3 is liquid-tight or air-tight by the elasticity. As a result of the sealing, one main passage R2 (between the two main passages R2 and R3) is blocked, and the transfer of the object is stopped.

  And in order to switch from this state to the state which transfers a target object, when the 2nd stem 9 is reversely rotated (it rotates on the opposite side to the case where the valve body 2 is displaced to the holder 5 side), the 1st to-be-pressed part While the contact of the pressing portion 90 with respect to 22a is released, the pressing portion 90 presses the second pressed portion 22b, and the pressing element 90 presses the second pressed portion 22b, thereby the valve body 2 Tilts in a direction away from the sheet member 4 (pressure contact portion 41).

  As a result, while the valve body 2 returns to the original position, the holder 5 is positioned at the specified position, and the valve body 2 and the seat member 4 return to a non-contact state (substantially constant interval). And if the 1st stem 8 is reversely rotated without rotating the 2nd stem 9 (it rotates on the opposite side to the case where the non-penetrating part of the valve body 2 is made to oppose the holder 5), the valve body 2 will become the sheet | seat member 4. The two main passages R2 and R3 communicate with each other through the communication passage R1 of the valve body 2 and return to a state in which the transfer of the object is permitted.

  Next, the operation in a state in which a foreign object has intervened between the valve body 2 and the seat member 4 when the object is transferred on the transfer path will be described. Even in this case, the procedure for rotation or tilting of the valve body 2 is the same as that in the normal state described above, so the description of the procedure for the rotation and tilting of the valve body 2 and the operation of each component is omitted. Only the operation of the valve body 2, the seat member 4, and the holder 5 when the valve body 2 is tilted to the seat member 4 side from the state where the valve body 2 is rotated and the non-penetrating part is opposed to the seat member 4 will be described. I will do it.

  The non-sliding ball valve 1 according to the present embodiment is a soft material in which the seat member 4 can be elastically deformed when an attempt is made to block the main passage with a small foreign matter interposed between the valve body 2 and the seat member 4. Therefore, as shown in FIG. 5A, the foreign substance F is pressed against the sheet member 4 as the valve body 2 is tilted. As a result, the sheet member 4 is locally elastically deformed in a state where the sheet member 4 is in close contact with the foreign matter F, and the sheet member 4 is in a state where the foreign matter F is partially covered. Accordingly, the tilting of the valve body 2 is not hindered, and when the valve body 2 tilts by a predetermined amount, the valve body 2 is pressed against the seat member 4 and the main flow path R2 is blocked.

  Then, by removing the foreign matter F from between the valve body 2 and the seat member 4, the elastically deformed portion of the seat member 4 is restored to the original state, so that the main passage after that is reliably shut off. Can be done. The foreign matter F intervening between the valve body 2 and the seat member 4 is often removed naturally by transferring the foreign matter F between the main passages R2 and R3, but the foreign matter F accumulates and the seat member 4 accumulates. When the foreign matter F cannot be crushed due to the elastic deformation, the sub-frame 32 is removed from the main frame 31 and the foreign matter F is removed when performing maintenance or the like.

  Then, when trying to block the main passage in a state where a large foreign matter F is interposed between the valve body 2 and the seat member 4, as shown in FIG. F is pressed against the sheet member 4. As a result, even in this case, the sheet member 4 is locally elastically deformed in a state in which the sheet member 4 is in close contact with the foreign material F. However, since the foreign material F is large, the foreign material F is completely in the dent due to the elastic deformation of the sheet member 4. There is a case where the state does not enter (the foreign material F protrudes from the seat member 4 toward the valve body 2 without being able to absorb the presence of the foreign material F due to the elastic deformation of the seat member 4).

  In this state, when the valve body 2 attempts to move by a set movement amount (tilt amount), the foreign substance F moves through the holder 5 via the sheet member 4 through the main passage R2 as the valve body 2 tilts (the action of the pressing force). As a result of pushing to the side, the holder 5 moves (escapes) against the urging force of the urging means 6.

  As a result, an excessive force does not act on the sheet member 4 in a state exceeding the limit of elastic deformation, so that the sheet member 4 is prevented from being broken or damaged. That is, when the seat member 4 is fixed at a fixed position, the movement amount (tilting amount) of the valve body 2 is set in a state where the foreign matter F does not completely enter the recess due to the elastic deformation of the seat member 4 as described above. If it continues to move, the seat member 4 may be cut or partially damaged. However, the non-sliding ball valve 1 according to this embodiment imposes the presence of the foreign matter F due to the elastic deformation of the seat member 4. When the sheet member 4 (holder 5) escapes when it is not possible, the sheet member 4 does not receive such a large damage that the sealing between the valve body 2 and the housing 3 cannot be performed.

  Therefore, by removing the foreign matter F from between the valve body 2 and the seat member 4, the holder 5 is returned to the specified position by the biasing means 6, and the seat member 4 is restored to its original by its own elasticity. Since the state is restored, the main passage after that can be reliably shut off. Even in this case, the foreign matter F intervening between the valve body 2 and the seat member 4 may be removed naturally by transferring the foreign matter F between the main passages R2 and R3. Because of the large size, generally, when performing maintenance or the like, the subframe 32 is removed from the main frame 31 to remove the foreign matter F.

  As described above, according to the non-sliding ball valve 1 according to the present embodiment, it is disposed on the valve body housing chamber 30 side of the one main passage R2 and maintains a liquid-tight state or an air-tight state with respect to the housing 3. However, the annular holder 5 is provided so as to be movable in the direction of the hole center line of the main passage R2, and the connection passage R4 is formed to communicate the main passage R2 and the communication passage R1, and the holder 5 and the housing. And an urging means 6 for urging the holder 5 toward the valve body 2 when the holder 5 moves from at least a specified position on the valve body housing chamber 30 side to the main passage R2 side. The seat member 4 is made of an elastically deformable soft material, and the holder 5 is held in a manner in which the seat member 4 protrudes toward the valve body 2 around the opening of the connection passage R4 on the valve body 2 side. Since it is configured to be able to When trying to block the main passage R2 with a small foreign substance F interposed between the sheet member 4 and the sheet member 4, the sheet member 4 partially enters the foreign substance F. 4, the main flow path R <b> 2 is shut off, and by removing the foreign matter F from between the valve body 2 and the seat member 4, the elastically deformed portion of the seat member 4 is restored to the original state, Thereafter, the main passage R2 can be reliably shut off.

  Further, when the main passage R2 is to be blocked with a large foreign matter F (a large foreign matter F that cannot be wrinkled by elastic deformation of the seat member 4) interposed between the valve body 2 and the seat member 4. As a result of the tilting of the valve body 2 (the action of the pressing force), the holder 5 moves against the urging force of the urging means 6 (escapes), so that the elastic deformation limit of the seat member 4 is exceeded. Since excessive force does not act in the state, the sheet member 4 is prevented from being broken or damaged, and the foreign material F is removed from between the valve body 2 and the sheet member 4 so that the sheet member 4 is elastically deformed. The restored portion is restored to the original state, and the main passage R2 can be reliably shut off thereafter.

  Therefore, the non-sliding ball valve 1 according to the present embodiment has a main passage without damaging the seat member 4 or the valve body 2 even if the foreign matter F intervenes between the valve body 2 and the seat member 4. An excellent effect that R2 can be blocked can be obtained.

  The holder 5 has an outer diameter larger than that of the main passage R <b> 2, and the housing 3 includes a holder accommodating portion 300 that accommodates the holder 5, and the holder accommodating portion 300 is provided in the valve body accommodating chamber 30. The valve body chamber 30 is continuously formed with respect to one main passage R2 so as to open toward the main body R2, the inner diameter is set larger than the outer diameter of the holder 5, and the biasing means 6 is The holder 5 is defined between the inner surface defining the holder housing 300 and the outer circumferential surface of the holder 5. The holder 5 is interposed between the holder 5 and the holder 5. Since the sealing member S is interposed, even if the holder 5 holding the sheet member 4 is movably provided, the sealing between the holder 5 and the housing 3 can be reliably achieved by the presence of the sealing member S. it can.

  In particular, the holder accommodating portion 300 has an inner diameter set larger than the inner diameter of the main passage R 2, a first enlarged portion 301 that is continuous with the main passage R 2, and an inner diameter that is larger than the inner diameter of the first enlarged portion 301. A first enlarged portion 301 and a second enlarged portion 302 that opens continuously toward the valve body accommodating chamber 30, and the holder 5 has a sheet at one end on the valve body accommodating chamber 30 side. A holder main body 50 accommodated in the holder accommodating portion 300 in a state in which the member 4 is fitted, and a fixing member 52 for fixing the sheet member 4 fitted to the holder main body 50. An annular first main body portion 500 accommodated in one enlarged portion 301 and a second enlarged portion formed continuously with the first main body portion 500 and having an outer diameter larger than that of the first main body portion 500. An annular second main body 501 housed in 302, and The sheet member 4 is formed continuously with the two main body portions 501 and has an annular third main body portion 502 on which the sheet member 4 is fitted. The fixing member 52 is fitted on the third main body portion 502. Is fitted to the seat member 4 so as to be sandwiched together with the third main body portion 502, so that the sheet member 4 is removed from the foreign matter F intervening between the valve body 2 and the seat member 4 with the holder body 50 ( The third main body 502) and the fixing member 52 can protect the sheet member 4 from being unnecessarily damaged even if the object to be transferred is a peculiar thing such as waste. .

  In addition, the biasing means 6 is interposed between the second body portion 501 and the surface that defines the second enlarged portion 302 and faces the valve body housing chamber 30 side, so that the holder 5 is securely attached. And can smoothly return to the specified position. Furthermore, since the sealing member S is interposed between the outer peripheral surface of the first main body portion 500 and the inner peripheral surface of the first enlarged portion 301, the holder 5 and the housing can be prevented without obstructing the movement of the holder 5. 3 can be reliably achieved.

  In addition, since the holder 5 at the specified position is provided with a stopper 7 that restricts the movement of the holder 5 toward the valve body housing chamber 30, the same mode is always applied to the seat member 4 when the valve body 2 is tilted. In addition, it is possible to reliably prevent problems such as foreign matter F entering the valve body 2 and the seat member 4 in an unexpected manner. Accordingly, it is possible to prevent the sheet member 4 from being damaged in an unexpected situation.

  Further, the urging means 6 is composed of an annular disc spring and is arranged so as to be concentric or substantially concentric with the main passage R2 (connection passage R4), so that the urging force of the holder 5 is uniform in the circumferential direction. Therefore, it is possible to smoothly and reliably return the holder 5 and the like.

  The non-sliding ball valve of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention.

  In the above embodiment, the holder 5 is constituted by the holder main body 50 and the fixing member 52, and the annular fixing member 52 is fixed to the sheet member 4 (holder holding portion 40) fitted on the third main body portion 502 of the holder main body 50. However, the present invention is not limited to this. For example, the sheet member 4 is fitted into the third main body 502 and the annular fixing member 52 is fitted into the sheet member 4. Thus, the sheet member 4 is sandwiched between the third main body portion 502 and the fixing member 52 so that a part of the sheet member 4 (for example, the pressure contact portion 41) protrudes toward the valve body 2 side. It may be. That is, the sheet member 4 is fitted so as to be concentric with the third main body portion 502 of the holder body 50, and the fixing member 52 is fitted so as to be concentric with the sheet member 4. Good. Also in this case, it is preferable to fix the fixing member 52 to the holder body 50 with screws.

  In the above embodiment, the holder 5 is constituted by the holder main body 50 and the fixing member 52, and the fixing member 52 is further fitted to the sheet member 4 fitted to the third main body portion 502 of the holder main body 50, Although the sheet member 4 is held, the present invention is not limited to this. For example, the holder 5 has a single configuration, and the surface of the holder 5 facing the valve body accommodating chamber 30 is formed around the connection passage R4. An annular groove may be formed, and the sheet member 4 may be fitted into the groove. That is, the holder 5 may be configured to be able to hold the sheet member 4 so that the sheet member 4 protrudes over the entire circumference on the valve body housing chamber 30 side.

  In the above embodiment, the holder 5 is set to have an outer diameter larger than the inner diameter of the main passage R2, and the housing 3 is provided with a holder accommodating portion 300 whose inner diameter is set larger than the outer diameter of the holder 5, The holder 5 is configured to be movable in the holder accommodating portion 300, but is not limited thereto. For example, a hole having the same diameter as the main passage R2 is provided in the housing 3 as the holder accommodating portion 300, A holder 5 having an outer diameter smaller than that of the main passage R2 is accommodated in the hole, and an annular convex portion facing the end surface of the holder 5 opposite to the valve body accommodating chamber 30 side with a predetermined interval is mainly used. It may be formed on the entire inner circumference of the boundary position between the passage R <b> 2 and the holder accommodating portion 300, and the urging means 6 may be interposed between the convex portion and the holder 5.

  Even in this case, the seat member 4 is opposed to the periphery of the opening of the communication passage R1 in which the main passages R2 and R3 communicate with each other, and the seat member 4 protrudes from the holder 5 to the valve body 2 side. Of course. If the outer diameter of the holder 5 is made smaller than the inner diameter of the main passage R2, the inner diameter of the connection passage R4 becomes smaller than the inner diameter of the main passage R2, and the object on the boundary with the main passage R2 Since a step that may hinder the transfer is formed, in order to smoothly transfer the object, the outer diameter of the holder 5 is set larger than the inner diameter of the main passage R2, as described above, The inner diameter of the connection passage R4 is preferably the same as or larger than the inner diameter of the main passage R2.

  In the above embodiment, the main passage R2 and the communication passage R1 are formed to have the same diameter or substantially the same diameter. However, the present invention is not limited to this. For example, one main passage R2 has a larger diameter than the communication passage R1. The connecting passage R4 of the holder 5 may be configured by a tapered hole having a diameter reduced to the communication passage R1 side so as to correspond to the main passage R2 and the communication passage R1. Conversely, the communication hole R1 is set to have a larger diameter than the one main passage R2, and the connection passage R4 of the holder 5 is contracted to the main passage R2 side so as to correspond to the main passage R2 and the communication passage R1. You may comprise by the diameter taper hole. In this case, the other main passage R3 is set to have the same diameter as the communication hole R1.

  Further, either one of the main passages R2 and R3 may be set to have a larger diameter than the other, and the communication hole R1 of the valve body 2 may be configured as a tapered hole so as to absorb the difference in diameter. In this case, the connection path R4 of the holder 5 may be formed in a hole having the same diameter or substantially the same diameter as the one main path R2, or may be formed in a tapered hole continuous with the communication hole R1.

  In the above-described embodiment, the sheet member 4 is configured by the holder holding portion 40 whose cross section perpendicular to the circumferential direction of the sheet member 4 is a substantially rectangular shape, and the pressure contact portion 41 protruding from the corner portion of the holder holding portion 40. However, the form of the sheet member 4 is not limited to this, and for example, the sheet member 4 may be formed so that a cross section perpendicular to the circumferential direction of the entire sheet member 4 forms a substantially square shape. In this case, the holder 5 is configured so that at least a part of one surface side of the sheet member 4 facing the valve body accommodating chamber 30 (valve body 2) projects toward the valve body 2 over the entire circumference. 4 may be configured to be held.

  In the above embodiment, the sealing member S is interposed between the outer periphery of the first main body portion 500 and the inner periphery of the first enlarged portion 301. However, the present invention is not limited to this. The sealing member S is interposed between the outer periphery of the first body portion 500 and the inner periphery of the second enlarged portion 302, between the outer periphery of the first body portion 500 and the inner periphery of the first enlarged portion 301, and the second body portion. A sealing member S may be interposed between the outer periphery of 502 and the inner periphery of the second enlarged portion 302.

  In the above embodiment, the holder accommodating portion 300 is constituted by the first enlarged portion 301 and the second enlarged portion 302, and the holder main body 50 of the holder 5 is the first main body portion 500, the second main body portion 501, and the third main body portion. However, the present invention is not limited to this. For example, the first enlarged portion 301 of the holder accommodating portion 300 may be omitted and the first main body portion 500 of the holder 5 may be omitted. In this case, the sealing member may be interposed between the inner peripheral surface of the second enlarged portion 302 and the outer peripheral surface of the second main portion 501.

  Further, the first main body portion 500, the third main body portion 502, and the fixing member 52 of the holder main body 50 are omitted, and the entire holder 5 is configured only by the second main body portion 501, that is, a cross section in a direction orthogonal to the circumferential direction. The holder 5 may be formed of a cylindrical body having a rectangular shape. In this case, an annular groove is formed around the connection passage R4 on the end surface of the holder 5 facing the valve body housing chamber 30, and the seat member 4 is fitted into the groove, and the sealing member is expanded to the second size. What is necessary is just to interpose between the inner peripheral surface of the part 302 and the outer peripheral surface of the 2nd main part 501. However, if the first enlarged portion 301 and the first main body portion 500 are omitted in this way, the space in which the urging means 6 is disposed communicates with the main passage R2, so that dust or the like enters and urges it. Considering that deformation of the means 6 is hindered, it is preferable to provide the first main body portion 500 and the first enlarged portion 301 as in the above embodiment.

  In the above embodiment, the disc spring is adopted as the biasing means 6 for biasing the holder 5, but the present invention is not limited to this, and for example, a plurality of coil springs are continuously provided in the circumferential direction of the holder 5 as the biasing means 6. Or you may make it arrange | position at intervals. That is, the urging means 6 that urges the holder 5 may be configured to be able to urge continuously or intermittently over the entire circumference of the holder 5.

  In the above embodiment, the urging means (disc spring) 6 is provided with a natural length and the stopper 7 is provided. However, when the urging means 6 is provided in a natural length state, the holder 5 is provided with an urging means. Therefore, the stopper 7 is not necessarily provided, and the stopper 7 may be provided as necessary. However, it is preferable to provide a stopper 7 in order to reliably restrict unnecessary movement of the holder 5 (holder 5).

  In the above-described embodiment, the urging means 6 has a natural length in a normal state (a state in which the urging force is not applied to the holder 5). However, the present invention is not limited to this. The urging means 6 may urge the holder 5 toward the valve body 2 in the state of being positioned. In this case, of course, the stopper 7 is provided to position the holder 5 at the specified position. When the biasing means 6 biases the holder 5 in the normal state as described above, the valve body 2 tilts with a large foreign substance F intervening between the seat member 4 and the valve body 2. Of course, the biasing means 6 is selected (the biasing force is set) so that the holder 5 can move to the main passage R2 side.

  In the above embodiment, the stopper 7 is formed in an annular shape, but is not limited to this. For example, a plurality of stoppers 7 are provided at intervals in the circumferential direction of the main passage R2 in the housing 3, The stopper 7 may extend from the periphery of the opening toward the center. In this way, the holder 5 can be positioned at the specified position by contacting the stopper 7. Moreover, the stopper 7 is not limited to what is attached in the state inserted | pinched between the main frame 30 and the sub-frame 31, The fixing aspect of the stopper 7 can be changed variously.

  In the above embodiment, the stem (first stem 8) for rotating the valve body 2 is provided through the lower portion of the housing 3, but the present invention is not limited to this. Of course, it may be inserted through the top. That is, the configuration may be reversed from the above embodiment.

  In the above embodiment, the first stem 8 for rotating the valve body 2 and the second stem 9 for urging the valve body 2 are provided separately, but the present invention is not limited to this. For example, it may be a non-sliding ball valve 1 ′ as shown in FIG.

  That is, the valve body 2 ′ is configured to be rotatable around a predetermined axis L in the valve body accommodating chamber 30 ′ of the housing 3 ′ and extends in a direction orthogonal or substantially orthogonal to the predetermined axis L. A pair of pin bodies P, P opposed to the valve body 2 ′ with a predetermined axis L interposed therebetween are provided, inserted into the housing 3 ′ so as to pass on the axis L, and the pair of pin bodies P, P A connecting portion 80 ′ having a pair of support surfaces 86 ′ and 86 ′ formed parallel to or substantially parallel to the axis of the pin bodies P and P with respect to a shaft (stem) 85 ′ inserted between P; Further, it may be a non-slidable ball valve 1 ′ formed with a pressing portion 90 ′ formed with inclined surfaces 92 ′ and 92 ′ continuous with the support surfaces 86 ′ and 86 ′.

  The non-sliding ball valve 1 ′ is configured such that, after the stem 85 ′ is moved in the direction of the axis L by a predetermined amount and then rotated in the same direction, the connection portion 80 ′ is rotated around the axis L. After the torque is transmitted to the valve body 2 ′ and the valve body 2 ′ is rotated, the pressing portion 90 ′ presses (biases) the valve body 2 ′ (pin body P) to tilt the valve body 2 ′ toward the seat member 5 side. Since the non-penetrating portion of the valve body 2 'is configured to be in close contact with the seat member 4, the seat member 4, the holder 5 and the urging means 6 are configured in the same manner as the non-sliding ball 1 of the above embodiment. By doing so, the same operation and effect as the above-mentioned embodiment can be produced. Since the non-sliding ball valve 1 ′ shown in FIG. 7 is related to the prior art, it does not include the seat member 4, the holder 5, and the urging means 6, but the description of the above embodiment is referred to. Thus, it is obvious that the sheet member 4, the holder 5, and the urging means 6 according to the above embodiment can be applied.

  Although the two-way valve has been described in the above embodiment, the present invention is not limited to this. For example, three main passages are formed in the housing 3 around the predetermined axis L at predetermined angles, and the valve body 2 is formed. A communication passage communicating with two of the three main passages and a non-penetrating portion facing the remaining main passages are formed, and communicated via the communication passage R1 by rotating the valve body 2 forward and backward. A three-way valve that switches the main passage may be used.

It is a longitudinal cross-sectional view of the non-sliding ball valve which concerns on one Embodiment of this invention, Comprising: The state which the main channel | path of the housing connected via the communicating channel | path of the valve body is shown. It is a longitudinal cross-sectional view of the non-sliding ball valve concerning the embodiment, Comprising: The non-penetrating part of a valve body is closely_contact | adhered to a seat member, and the state which interrupted | blocked the main channel | path of the housing is shown. Explanatory drawing for demonstrating the relationship of the 1st stem insertion part and 1st stem (connection part) of the non-sliding ball valve concerning the embodiment is shown. It is a partial expanded sectional view of the non-sliding ball valve concerning other embodiments of the present invention, and shows the A section expanded sectional view of FIG. It is operation | movement explanatory drawing of the non-sliding ball valve which concerns on another embodiment of this invention, Comprising: (a) tilted the valve body when the small foreign material intervened between the valve body and the seat member. (B) shows the state in which the valve body is tilted when a large foreign object (a large foreign object that cannot be rejected by elastic deformation of the sheet member) intervenes between the valve body and the seat member. The partial enlarged view of the made state is shown. The longitudinal cross-sectional view of the conventional non-sliding ball valve is shown. The longitudinal cross-sectional view of another conventional non-sliding ball valve is shown.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Non-sliding ball valve, 2 ... Valve body, 3 ... Housing, 4 ... Seat member, 5 ... Holder, 6 ... Belleville spring (biasing means), 7 ... Stopper, 8 ... First stem (stem), 9 ... 2nd stem (stem), 20 ... 1st stem insertion part, 20a, 20b ... 1st plane part, 21a, 21b ... 2nd plane part, 22 ... 2nd stem insertion part, 22a ... 1st pressed part 22b ... second pressed part, 30 ... valve body accommodating chamber, 31 ... main frame, 32 ... subframe, 40 ... holder holding part, 41 ... pressing part, 42 ... protruding part, 50 ... holder body, 52 ... fixed 80, connection part, 81a, 81b ... ridge part, 82a, 82b ... third plane part, 90 ... pressing part, 91 ... stem body, 300 ... holder accommodating part, 301 ... first enlarged part, 302 ... first Two enlarged portions, 303 ... annular groove, 310 ... main body portion, 31 ... 1st stem insertion part, H1 ... 1st stem insertion hole, 312 ... 2nd stem insertion part, H2 ... 2nd stem insertion hole, 313 ... Pipe connection part, 314 ... 1st member, 314a ... Cylindrical part, 314b ... flange part, 316 ... second member, 317 ... cylindrical part, 318a, 318b ... flange part, 319 ... flange, 320 ... connection flange part, 320a ... fixing part, 320b ... reduced diameter part, 321 ... pipe connection part 322, flange, 350, first pressing member, 351, pressing portion, 352, collar portion, 353, second pressing member, 354, pressing portion, 355, collar portion, 500, first body portion, 501, second. Main body part 502 ... Third main body part 520 ... Fixing member main body 521 ... Regulator part 522 ... Positioning part G ... Gasket, L ... Axis line, P ... Pin body, S ... O-ring (sealing member), R2 , R3 ... main passage R1 ... communicating passage, R4 ... connecting passage, Fa ... fixing member abutment region

Claims (5)

A valve body in which a communication passage penetrating through a virtual plane orthogonal to or substantially orthogonal to a predetermined axis is formed, and a valve body housing chamber that houses the valve body is formed, and the valve body in the valve body housing chamber Corresponding to at least one main passage so that the housing in which at least two main passages communicating with each other via the communication passages are formed and the periphery of the communication passage of the valve body communicating with the main passages are opposed to each other An annular seat member disposed in the housing, and the valve body is configured to be rotatable about the predetermined axis in a non-contact state with respect to the seat member, and the communication path With the non-penetrating part formed between the openings at both ends facing the sheet member, the valve body is tilted toward the seat member side with the one end side in the axial direction as a fulcrum and supported as a fulcrum. Non-penetrating by In a non-sliding ball valve configured to block the main passage by pressing against the seat member, the non-sliding ball valve is disposed on the valve body housing chamber side of at least one of the main passages and is liquid-tight with respect to the housing Alternatively, a holder that is provided so as to be movable in the hole center line direction of the main passage while maintaining an airtight state, and in which a connection passage that connects the main passage and the communication passage is formed, and between the holder and the housing And an urging means for urging the holder toward the valve body when the holder moves at least from a specified position on the valve body housing chamber side to the main passage side, and the seat member is elastically deformable consists of a soft material, the holder is connected by a valve body side of the opening around the passage is holdable configured in a manner which projects the sheet member to the valve body side, the valve body and the seat member when the blocking the main passage When foreign matter is interposed, elastic deformation of the sheet member, or non-sliding ball valve, characterized by being configured to dodge foreign object by the movement of the elastic deformation and the holder of the seat member.   The outer diameter of the holder is set larger than the inner diameter of the main passage, and the housing includes a holder accommodating portion that accommodates the holder, and the holder accommodating portion opens toward the valve body accommodating chamber. The valve body housing chamber is continuously formed with respect to at least one of the main passages, and the inner diameter is set larger than the outer diameter of the holder, and the biasing means defines the holder housing portion. 2. An annular sealing member is interposed between an inner peripheral surface defining the holder accommodating portion and an outer peripheral surface of the holder, and is interposed between a surface facing the valve body accommodating chamber side and the holder. Non-sliding ball valve as described.   The holder accommodating portion has an inner diameter set larger than the inner diameter of the main passage, a first enlarged portion continuous with the main passage, an inner diameter set larger than the inner diameter of the first enlarged portion, A first enlarged portion and a second enlarged portion that opens toward the valve body storage chamber, and the holder is attached to the holder storage portion in a state in which a sheet member is fitted to one end portion on the valve body storage chamber side. A holder main body, and a fixing member for fixing a sheet member fitted to the holder main body. The holder main body includes a cylindrical first main body portion accommodated in the first enlarged portion; A cylindrical second formed continuously with the first main body so as to be concentric with or substantially concentric with the main body, the outer diameter being set larger than the first main body, and being accommodated in the second enlarged portion. The sheet is formed continuously with the second body part so as to be concentric or substantially concentric with the body part and the second body part, The fixing member can be fitted to the sheet member so as to sandwich the sheet member fitted to the third main body portion together with the third main body portion. The biasing means is interposed between a surface that defines a second enlarged portion and faces the valve body housing chamber, and the second body portion, and the sealing member is an outer periphery of the first body portion. The interposition between the surface and the inner peripheral surface of the first enlarged portion and at least one of the outer peripheral surface of the second main body portion and the inner peripheral surface of the second enlarged portion. Non-sliding ball valve.   The non-sliding ball valve according to any one of claims 1 to 3, further comprising a stopper that restricts movement of the holder in the specified position toward the valve body storage chamber.   The non-sliding ball valve according to any one of claims 1 to 4, wherein the urging means is configured by an annular disc spring and is disposed concentrically or substantially concentrically with the main passage.

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