JP4451706B2 - Piping connection device - Google Patents

Description

  In the present invention, a first piping device that supplies and discharges through a first pipe and a second piping device that supplies and discharges through a second pipe can move relative to each other. The present invention relates to a pipe connection device that connects pipes while maintaining a cleaning state.

As the conventional pipe connection device, one having the configuration shown in FIGS. 9 and 10 is known (see Patent Document 1). 9 is a diagram showing a state before connection, FIG. 10 is a diagram showing a state after connection, and FIG. 9 and FIG. 10 are views seen from 90 degrees different directions. This pipe connection device connects the hopper 101 of the container 100 and the pipe 111 of the processing station 110, and a slidable cover 102 is provided at the lower end of the hopper 101. On the other hand, at the upper end of the tube 111, there is a slidable cover 112 and a thrust cylinder for retracting the cover 102 supported by the stud 113 of the cover 112 together with the cover 112 by the approach of the cover 102 to the cover 112 as shown in FIG. A rod 114 and an enclosure 115 in which both the covers 102 and 112 and the rod 114 of the thrust cylinder are placed inside and a retreat space for both the covers 102 and 112 are placed inside are provided. The enclosure 115 has an opening 116 into which the lower end of the hopper 101 enters. When the container 100 and the processing station 110 are connected, a portion in the vicinity of the lower end of the hopper 101 blocks the opening 116 so that the outside air is blocked. Therefore, this outside air shut-off state is ensured when both covers 102 and 112 are retracted to the retreat space. The enclosure 115 is provided with gas injection means formed by a gas inlet 117 and an air outlet 118, and the gas injection means blows the inside of the enclosure 115 in a state where it is shut off from the outside air. Is configured to do.
JP-A-6-321360

  However, since there are the covers 102 and 112 and their retreat spaces in the enclosure 115, the volume of the enclosure 115 is considerably increased. In addition, since the covers 102 and 112 and the rod 114 arranged in the enclosure 115 obstruct the flow of gas, even if cleaning is performed by blowing, there is a possibility that the gas does not reach every corner, resulting in poor cleaning. is there.

  The present invention has been made in order to solve the problems of the prior art, and an object of the present invention is to provide a pipe connection device capable of improving the degree of cleaning.

In the pipe connection device according to the first aspect of the present invention, the first piping device for supplying and discharging through the first piping and the second piping device for supplying and discharging through the second piping are capable of relative movement. a pipe connection device for connecting the ends to each other on both the pipe while maintaining the cleaning state and the first pipe and the second pipe, corresponding to the end opening with surrounding the end portion of the first pipe enclosing a first frame having a first opening provided at a position, a first cover covering openably said first opening is provided in the interior of the first frame, the end portion of the second pipe And a second frame having a second opening provided at a position corresponding to the end opening, a second cover provided inside the second frame so as to open and close the second opening, provided to the frame body and hand of the second frame, the first cover and closed the second frame and the closed state and the first frame Forming a closed space together with the second cover state, and a cylindrical member to which the other end covering the periphery of the second opening with one end covering the periphery of the first opening with its closed space is formed, the Blowing means for cleaning the inside of the cylindrical member with gas, and at least one of the first pipe and the second pipe pass through the cylindrical member when the first cover and the second cover are open. A pipe contacting / separating means for contacting / separating with respect to the side pipe, and before connecting the first pipe and the second pipe, the cylindrical member is interposed between the first cover and the second cover in the closed state. by interposing forming the closed space, characterized in that it is configured to clean the closed space by the blowing means.

  The pipe connection device according to a second aspect of the present invention is the pipe connection device according to the first aspect, wherein the first pipe and the second pipe are formed in a circular cylindrical shape, and the cylindrical member is the first pipe or The second pipe is formed in a circular shape in which the second pipe is inserted.

  A pipe connection device according to a third aspect of the present invention is the pipe connection device according to the first or second aspect, wherein at least one of the first frame body and the second frame body is positioned inside a cover that covers the frame body. A shutter that covers the end of the pipe so as to be openable and closable is provided.

  A pipe connection device according to a fourth aspect of the present invention is the pipe connection device according to any one of the first to third aspects, wherein the blow means has an inlet and an outlet formed in the cylindrical member, When the closed space is formed, the purified gas is supplied from the inlet to the closed space and discharged from the exhaust port. When the cylindrical member is open to the outside air, the purified gas from the inlet is discharged. It is characterized by only supplying.

A pipe connection device according to a fifth aspect of the present invention is the pipe connection device according to any one of the first to fourth aspects, wherein the first cover is formed with a first opening in which the first opening in the first frame is formed. It is provided so as to open and close the first opening by sliding along the Rutotomoni the first opening forming surface has become detachably moved to a contact position in contact with the spaced position away from the surface, the first the cover moving means for the first cover to contact and separation movement between said contact position of the cover and the separation position, the first cover slide means for sliding along said first cover to said first opening forming surface And is provided.

A pipe connection device according to a sixth aspect of the present invention is the pipe connection device according to any one of the first to fifth aspects, wherein the second cover is formed with a second opening in which the second opening in the second frame is formed. is provided so as to open and close the second opening by sliding along the separable movable and is optionally Rutotomoni the second opening forming surface and the contact position in contact with the spaced position away from the surface, the second the cover moving means for the second cover to contact and separation movement between said contact position of the cover and the separation position, the second cover slide means the second cover is slid along the second opening forming surface And is provided.

  According to the first aspect of the present invention, the first piping device and the second piping device are brought close to each other in order to connect the first piping and the second piping, and then the first cover and the second cover in the closed state are connected. A closed space is formed by interposing a cylindrical member so as to surround the first opening and the second opening, and the inside of the closed space is cleaned by blow means. After that, when the first cover and the second cover are opened, the inside of the first frame body and the second frame body that are in communication with each other through the cylindrical member is also kept clean. By connecting the first pipe and the second pipe so as to pass through the cylindrical member in the clean state, the first pipe and the second pipe can be connected while maintaining the cleaning state. Become. Therefore, the cylindrical member only needs to secure a size that allows at least one of the first pipe and the second pipe to pass through the inside thereof, thereby reducing the closed space. In addition, when the inside of the closed space is cleaned by the blowing means, since there are no pipes or covers inside the closed space, it is possible to reduce gas stagnating at the time of blowing and improve the cleanliness. Further, after the inside of the closed space is cleaned, the first and second covers are opened to connect the first frame body and the second frame body to the cleaned closed space and the cylindrical member. Therefore, it is possible to reduce dust from entering the vicinity of the ends of the first and second pipes. Further, when the inside of the closed space is cleaned by the blowing means, the first and second covers form a closed space, so that the cover is cleaned as compared to the case where the cover is retracted when blowing. easy.

  According to the second aspect of the present invention, since the cylindrical member has a circular cross section, it is possible to reduce gas stagnating at the time of blowing, to reduce the volume of the closed space, and to shorten the blowing time. it can.

  According to the invention of claim 3, even if dust remains in the closed space, it is possible to reduce the entry of dust into the pipe by the shutter.

  In the case of the invention of claim 4, since the gas can be supplied even when the cylindrical member is separated from the frame, it is possible to reduce dust from entering the inside of the cylindrical member. It is possible to reduce dust from entering the piping.

  In the case of the invention according to claim 5, the cover contacting / separating means for the first cover moves the first cover between the separated position and the contact position, so that when the first cover is opened and closed, the first cover is moved to the separated position. When opening the closed space, the first cover can be brought into contact with the first frame when the first cover is held in the closed state, so that the first cover can be brought into contact with the first frame. The air can be prevented from entering the first frame, and the accompanying dust can be prevented from entering the first frame.

  In the case of the sixth aspect of the invention, the cover contacting / separating means for the second cover moves the second cover between the separated position and the contact position, so that when the second cover is opened and closed, the second cover is moved to the separated position. It can be opened and closed smoothly. On the other hand, when the second cover is held in the closed state, the second cover can be brought into contact with the second frame so that the closed space is blown. In addition, air can be prevented from entering the second frame body, and the accompanying dust can be prevented from entering the second frame body.

  Embodiments of the present invention will be specifically described below.

  1 to 3 are front sectional views showing a pipe connecting device according to the present embodiment, FIG. 1 shows a state before connection and before formation of a closed space, and FIG. 2 shows a state before connection and a closed space is formed. FIG. 3 shows the connection state. Moreover, FIGS. 4-6 is a left view which shows the piping connection apparatus which concerns on this embodiment, FIG. 4 shows before connection and formation of closed space, FIG. 5 formed closed space before connection and FIG. FIG. 6 shows the connection state. FIG. 7 is a view showing a state before and after the cover is slid by the cover sliding means provided in the pipe connection device of the present embodiment, and FIG. 7A shows a state in which the opening of the frame is covered, FIG. Indicates a state in which there is an opening in the frame. FIG. 8 is a view showing a state before and after the shutter is slid by the shutter slide means provided in the pipe connection device of the present embodiment. FIG. 8A shows a state in which the pipe end is covered, and FIG. The part is exposed. In addition, about FIGS. 1-6, the number of each member demonstrated below is represented to FIG.1 and a figure, and the number is abbreviate | omitted except FIG.2, FIG.3, FIG.5 and FIG. Represent.

  This pipe connecting device includes an upper side piping device (first piping device) 10 for supplying and discharging through an upper side piping (first piping) 1 on the upper side of the figure, and a lower side piping (second piping) on the lower side of the drawing. The lower side piping device (second piping device) 20 that supplies and discharges through 11 can be moved relative to each other, and connects the upper side piping 1 and the lower side piping 11 while maintaining the cleaning state. It is. Here, it is assumed that the lower piping device 20 is fixed in a clean room, and the upper piping device 10 is on the conveyance side and moves in a three-dimensional direction.

  The upper side piping device 10 surrounds an end 1 a of the upper side piping 1 and has an upper side frame (first frame) 2 having an upper side opening (first opening) 3, and an inner side of the upper side frame 2. The upper side cover (first cover) 4 that covers the upper side opening 3 so as to be opened and closed and the inner side of the upper side frame body 2 covers the opening of the end portion 1a of the upper side pipe 1 so as to be opened and closed. And an upper shutter 5.

  The upper side pipe 1 has a circular cross section, and is connected to a tank (not shown) built in the upper side piping device 10 with a proximal end on the upper side piping device 10 with the distal end 1a facing downward. The whole is fixed, and is used for discharging the liquid, powder, granules, etc. stored in the tank to the outside or supplying the tank from the outside.

  The upper side frame 2 is composed of a substantially hexahedron, and has a ceiling surface 2a, a bottom surface 2b, and four side surfaces. In the upper frame 2, an end 1a of the upper pipe 1 is disposed through the ceiling surface 2a, and an upper opening 3 is formed on the bottom 2b, and an end 1a opening of the upper pipe 1 is disposed. It is formed in the position corresponding to. The upper frame 2 is configured to be blocked from outside air at other portions except for the upper opening 3.

  The upper cover 4 is provided so as to slide on the upper side of the bottom surface 2b in the front-rear direction by the cover slide means 6, and the upper side opening 3 is closed by sliding to the rear side, and the upper side opening is opened by sliding to the front side. 3 can be opened. A seal member 3 a is provided on the inner peripheral edge of the upper side opening 3, and the seal member 3 a seals between the bottom surface 2 b and the upper side cover 4.

  As shown in FIGS. 1 and 7, the slide means 6 includes a pair of left and right guides 6a extending in the front-rear direction and supported by a cover contact / separation means 8 attached to the upper frame 2 side so as to be movable up and down. It has a pair of guided members 6b attached to the upper side cover 4 and guided by the guides 6a, and a cylinder 6c for moving the upper side cover 4. The cylinder 6c is attached to the upper frame 2 side, and has a cylinder body 6d and a moving body 6e that slides in the front-rear direction by the cylinder body 6d. A through hole 6f through which the attached rod 4a is inserted is provided. Therefore, the upper side cover 4 can be moved up and down through the rod body 4a inserted through the through hole 6f, and can be slid in the front-rear direction by the cylinder 6c.

  The cover contact / separation means 8 moves the upper cover 4 to a position where the upper cover 4 contacts the bottom surface 2b by lowering the guide 6a when the upper cover 4 closes the upper opening 3, and otherwise, In particular, when the upper cover 4 is slid by the slide means 6, the guide 6a is raised to move the upper cover 4 to a position away from the bottom surface 2b. In addition, 8a in FIG. 7 is a guide member which guides raising / lowering of the guide 6a.

  The upper shutter 5 is provided above the upper cover 4 and below the end 1a of the upper pipe 1 so as to be slidable in the front-rear direction by the shutter slide means 7, and slides rearward. Thus, the end 1a of the upper pipe 1 is closed, and the end 1a is opened by sliding forward.

  As shown in FIGS. 1 and 8, the sliding means 7 includes a pair of left and right guides 7a extending in the front-rear direction and supported by a shutter contacting / separating means 9 attached to the upper frame 2 side. And a pair of guided members 7b attached to the upper shutter 5 and guided by the guide 7a, and a cylinder 7c for moving the upper shutter 5. The cylinder 7c is attached to the upper side frame 2 side, and includes a cylinder body 7d and a moving body 7e that slides in the front-rear direction by the cylinder body 7d. A through hole 7f through which the attached rod 5a is inserted is provided. Therefore, the upper shutter 5 can be moved up and down through the rod body 5a inserted through the through hole 7f, and can be slid in the front-rear direction by the cylinder 7c.

  The shutter contact / separation means 9 moves the upper shutter 5 to a position where it contacts the end 1a by raising the guide 7a when the upper shutter 5 closes the end 1a of the upper pipe 1. In other cases, in particular, when the upper shutter 5 is slid by the sliding means 7, the guide 7a is lowered to move the upper shutter 5 to a position to be separated from the end 1a. In addition, 9a in FIG. 8 is a guide member which guides the raising / lowering of the guide 7a.

  The lower-side piping device 20 includes a lower-side frame (second frame) 12 that surrounds the end 11 a of the lower-side piping 11 and has a lower-side opening (second opening) 13, and an inner side of the lower-side frame 12. The lower side cover (second cover) 14 that covers the lower side opening 13 so as to be openable and closable, and is provided inside the lower side frame body 12 and covers the opening of the end 11a of the lower side pipe 11 so as to be opened and closed. A lower shutter 15, a cylindrical member 16 provided on the lower cover 14, a blow means 17 for cleaning the inside of the cylindrical member 16 with gas, and an inner side of the lower frame 12, A pipe contact / separation means 18 for bringing the lower side pipe 11 into contact with and separating from the mating upper side pipe 1 when the upper side and lower side covers 4 and 14 are open is provided.

  The lower-side frame 12 is composed of a substantially hexahedron, and has a ceiling surface 12a, a bottom surface 12b, and four side surfaces.

  The lower side pipe 11 has a circular cross section, and a base end side and a front end side which are divided into two in the middle are connected by a bellows 11b, and a tank (not shown) built in the lower side piping device 20 is connected. Is connected to the lower piping device 20 with the end 11a on the distal end side (upper side in the figure) facing upward, and comes into contact with and separates from the upper piping 1. ing.

  The pipe contact / separation means 18 for raising and lowering the end portion 11a on the distal end side has an elevating cylinder 19 attached to the bottom surface 12b with the rod 19a facing downward. The rod 19a of the elevating cylinder 19 is attached to a support member 18b attached to the outer end portion of the plate 18a fixed to the lower end side of the end portion 11a, and moves up and down the end portion 11a by the advancement / retraction of the rod 19a. Further, the pipe contact / separation means 18 includes a guide means 34 for preventing lateral shaking, and the guide means 34 is attached downward to the guided member 34a provided on the plate member 18a and the bottom surface 12b of the second frame body 12. And a guide rod 34b.

  The lower pipe 11 is used for discharging liquid, powder, particles, or the like stored in the tank provided on the lower pipe device 20 side to the outside or supplying the tank from the outside.

  In the lower frame 12, an end 11a of the lower pipe 11 is disposed through the bottom surface 12b, and the lower opening 13 is located on the ceiling surface 12a at a position corresponding to the opening of the end 11a. Is formed. The lower frame 12 is configured to be blocked from outside air except for the lower opening 13.

  The lower side cover 14 is provided so that the lower side of the ceiling surface 12a is slid in the front-rear direction by the cover slide means 21, and the lower side opening 13 is closed by sliding to the rear side, and the lower side cover 14 is lowered by sliding to the front side. The side opening 13 is opened.

  The slide means 21 is the same as the slide means 6 except that it is upside down and left and right, and will be described with reference to FIGS. A pair of left and right guides 21a extending in the front-rear direction and supported by a cover contact / separation means 30 attached to the lower side frame 12 side, and a pair of guides attached to the lower side cover 14 and guided by the guides 21a. It has a guided member 21b and a cylinder 21c that moves the lower cover 14. The cylinder 21c is attached to the lower frame 12 side, and has a cylinder body 21d and a moving body 21e that slides in the front-rear direction by the cylinder body 21d. A through hole 21f through which the attached rod body 14a is inserted is provided. Therefore, the lower side cover 14 can be moved up and down through the rod body 14a inserted through the through hole 21f, and can be slid in the front-rear direction by the cylinder 21c.

  The cover contact / separation means 30 moves the lower cover 14 to a position where it contacts the ceiling surface 12a by raising the guide 21a when the lower cover 14 closes the lower opening 13; In particular, when the lower cover 14 is slid by the slide means 21, the guide 21a is lowered to move the lower cover 14 to a position where it is separated from the ceiling surface 12a. In addition, 30a in FIG. 7 is a guide member which guides the raising / lowering of the guide 21a.

  The lower shutter 15 is provided below the lower cover 14 and on the end 11a of the lower pipe 11 so as to be slidable in the front-rear direction by the shutter slide means 23, and slides backward. Thus, the end 11a of the lower pipe 11 is closed, and the end 11a is opened by sliding forward. A seal member 11c is provided on the upper side of the end portion 11a, and the seal member 11c seals between the lower shutter 15 and the lower pipe 11 and, as shown in FIG. 3 and FIG. When the side pipe 1 and the lower side pipe 11 are connected, the space between the pipes 1 and 11 is sealed.

  The slide means 23 has the same configuration as the slide means 7 except that the top and bottom and the left and right are reversed, and will be described with reference to FIGS. A pair of left and right guides 23a extending in the front-rear direction supported by the shutter contact / separation means 31 attached to the lower frame 12 side and extending in the front-rear direction, and a pair attached to the lower shutter 15 and guided by the guides 23a. The guided member 23b and a cylinder 23c for moving the lower shutter 15 are provided. The cylinder 23c is attached to the lower frame 12 side, and includes a cylinder body 23d and a moving body 23e that slides in the front-rear direction by the cylinder body 23d. A through hole 23f through which the attached rod 15a is inserted is provided. Therefore, the lower shutter 15 can be moved up and down through the rod 15a inserted through the through hole 23f, and can be slid in the front-rear direction by the cylinder 23c.

  The shutter contact / separation means 31 moves the lower shutter 15 to a position where the lower shutter 15 contacts the end 11a by lowering the guide 23a when the lower shutter 15 closes the end 11a of the lower pipe 11. In other cases, especially when the lower shutter 15 is slid by the slide means 23, the lower shutter 15 is moved away from the end 11a by raising the guide 23a. In addition, 31a in FIG. 8 is a guide member which guides the raising / lowering of the guide 23a.

  The cylindrical member 16 is attached to the upper side of the ceiling surface 12 a so that the lower end of the cylindrical member 16 covers the lower opening 13, specifically, the inner peripheral surface and the upper edge portion. It is arranged in. A sealing member 16a is provided on the lower surface of the cylindrical member 16 so that the space between the lower member 14 and the lower cover 14 is closed. The cylindrical member 16 has a circular cross section, is formed larger than the outer diameter of the end portion 11a of the lower pipe 11 that moves up and down the inner diameter, and can be inserted without hindrance to the end portion 11a. It can be done.

  The cylindrical member 16 is provided with blow means 17. The blow means 17 has an introduction port 17a and an exhaust port 17b formed in the tubular member 16, and supplies the purified gas from the introduction port 17a to the inside of the tubular member 16 and exhausts it from the exhaust port 17b. The inside of the cylindrical member 16 can be cleaned with gas.

  Before connecting the upper side pipe 1 and the lower side pipe 11, the cylindrical member 16 brings the upper side frame body 2 and the lower side frame body 12 closer to each other by moving the upper side piping device 10, thereby forming a cylindrical shape. The upper end of the member 16 is disposed so as to cover the periphery of the upper opening 3, and the upper frame 2, the lower frame 12, the closed upper cover 4, the closed lower cover 14, and the tubular member 16 are closed. To form a closed space A (see FIGS. 2 and 5). At this time, as shown in FIG. 4, the guide rod 33 a provided on the lower frame 12 side is guided by the guided hole 33 c of the guided member 33 b provided on the upper frame 2, and the upper piping device 10. And the lower side piping device 20 are prevented from being laterally displaced. When the closed space A is formed, the blowing means 17 supplies the purified gas from the introduction port 17a to the closed space A and discharges it from the exhaust port 17b, and the cylindrical member 16 opens to the outside air. When it is, the switching operation is performed so as to supply only the purified gas from the introduction port 17a.

  Next, the operation content of the pipe connection device of the present embodiment configured as described above will be described.

  When the upper side piping device 10 is located away from the lower side piping device 20, the upper side cover 4 and the upper side shutter 5 are closed, and one lower side cover 14 and the lower side shutter 15 are also closed. At the same time, the blowing means 17 only supplies clean gas from the inlet 17a. Thereby, the lower side cover 14 and the cylindrical member 16 are maintained in a clean state free from dust.

  And when connecting the upper side piping 1 and the lower side piping 11, the upper side piping apparatus 10 is moved toward the lower side piping apparatus 20, and the upper side frame 2 approaches the lower side frame 12 The cylindrical member 16 is interposed between the upper side frame 2 and the lower side frame 12 (see FIGS. 1 and 4). Thereby, the cylindrical member 16 is arrange | positioned so that the circumference | surroundings of the upper side opening 3 and the circumference | surroundings of the lower side opening 13 may be covered, and the closed space A is formed (refer FIG.2 and FIG.5).

  Along with the formation of the closed space A, the blowing means 17 performs a switching operation so that the cleaned gas is supplied from the introduction port 17a to the closed space A and discharged from the exhaust port 17b. Thereby, the inside of closed space A is cleaned with clean gas.

  When the closed space A is cleaned, the upper cover 4, the upper shutter 5, the lower cover 14, and the lower shutter 15 are opened, and the end portion of the lower pipe 11 is connected by the pipe contact / separation means 18. 11a is raised to connect the upper side piping 1 and the lower side piping 11 (see FIGS. 3 and 6), and supply / discharge between the tank of the upper side piping device 10 and the tank of the lower side piping device 20 I do. After that, when the supply / discharge is finished, the upper side piping device 10 is separated from the lower side piping device 20 in the reverse procedure to the above. Thereafter, the same operation is performed.

  Therefore, in the case of the present embodiment, the cylindrical member 16 only needs to be large enough to allow the lower pipe 11 to pass through the inside thereof, and thereby the closed space A can be reduced. In addition, when the inside of the closed space A is cleaned by the blowing means 17, since there are no pipes or covers inside the closed space A, it is possible to reduce the stagnation of clean gas at the time of blowing and improve the cleanliness. . In addition, after the inside of the closed space A is purified, the upper side frame body 2 and the lower side frame body 12 are cleaned by closing the upper side and lower side covers 4, 14. In addition to being blocked from the outside air through the cylindrical member 16, it is possible to reduce dust from entering the vicinity of the end 1 a of the upper pipe 1 and the end 11 a of the lower pipe 11. Furthermore, when the inside of the closed space A is cleaned by the blow means 17, the upper and lower covers 4, 14 form the closed space A, so that the cover is retracted when blowing as in the prior art. It is easy to clean the covers 4 and 14.

  Further, in the present embodiment, since the cylindrical member 16 has a circular cross section, it is possible to reduce gas stagnating during blowing, to reduce the volume of the closed space A, and to shorten the blowing time. it can. Further, even if dust remains in the closed space A, it is possible to reduce the entry of dust into the upper side pipe 1 and the lower side pipe 11 by the upper side shutter 5 and the lower side shutter 15. In addition, since the blowing means 17 can supply gas even when the cylindrical member 16 is separated from the upper frame 2, dust can be prevented from entering the inside of the cylindrical member 16. Further, dust can be reduced from entering the lower pipe 11.

  Further, the cover contacting / separating means 8 moves the upper side cover 4 between the position where it contacts the upper side frame 2 and the position separated from the upper side frame 2, and the cover contacting / separating means 30 moves the lower side cover 14 to the lower side frame 12. Since the upper cover 4 and the lower cover 14 are opened and closed when the upper cover 4 and the lower cover 14 are opened and closed, the opening and closing can be performed smoothly. On the other hand, when the upper side cover 4 and the lower side cover 14 are held in the closed state, the upper side cover 4 is brought into contact with the upper side frame 2 and the lower side cover 14 is brought into contact with the lower side frame 12 respectively. Therefore, when the closed space A is blown, air can be prevented from entering the upper frame 2 and the lower frame 12, and dust can be prevented from entering.

  In the above-described embodiment, the upper side piping device moves in the three-dimensional direction and the lower side piping device is fixed. However, the present invention is not limited to this, and the upper side piping device and the lower side piping device are configured. Each of the above can also be applied to a configuration in which each moves in a three-dimensional direction.

  In the above-described embodiment, the first piping device is the upper piping device and the second piping device is the lower piping device. However, the present invention is not limited to this, and the first piping device is the lower piping device, the second piping device. The same can be applied to the case where the piping device is an upper piping device.

It is front sectional drawing which shows the piping connection apparatus which concerns on one Embodiment of this invention, and shows before closed space formation before a connection. It is front sectional drawing which shows the piping connection apparatus of FIG. 1, and shows the state which formed the closed space before the connection. It is front sectional drawing which shows the piping connection apparatus of FIG. 1, and shows a connection state. It is a left view which shows the piping connection apparatus of FIG. 1, and shows before closed space formation before a connection. It is a left view which shows the piping connection apparatus of FIG. 1, and shows the state which formed the closed space before a connection. It is a left view which shows the piping connection apparatus of FIG. 1, and shows a connection state. It is a figure which shows the state before and behind sliding a cover with the sliding means for a cover with which the piping connection apparatus of FIG. 1 was equipped, (a) is the state which covers the opening of a frame, (b) is the state with the opening of the frame. Show. It is a figure which shows the state before and behind sliding a shutter with the sliding means for shutters with which the piping connection apparatus of FIG. 1 was equipped, (a) is a state which covers a pipe end part, (b) shows the state which the pipe end part exposed. . It is a front view which shows the piping connection apparatus of patent document 1. It is the figure which looked at the piping connection apparatus of FIG. 9 from 90 degrees different directions.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st piping 1a End part 2 Upper side frame (1st frame)
3 Upper side opening (first opening)
4 Upper cover (first cover)
5 Upper shutter 6d Pressing means 10 Upper piping device (first piping device)
11 Lower piping (second piping)
11a End 12 Lower frame (second frame)
13 Lower side opening (second opening)
14 Lower cover (second cover)
15 Lower side shutter 16 Cylindrical member 17 Blow means 18 Pipe contact / separation means 20 Lower side piping apparatus (second piping apparatus)
22 Pressing means A Closed space

Claims (6)

The first piping device that feeds and discharges through the first piping and the second piping device that feeds and discharges through the second piping can move relative to each other, and the first piping and the second piping are washed. A pipe connection device that connects the ends of both pipes while maintaining the state,
A first frame having a first opening provided at a position corresponding to the end opening with surrounding the end portion of the first pipe,
A first cover provided inside the first frame and covering the first opening so as to be openable and closable;
A second frame having a second opening provided in a position corresponding to the end opening with surrounding the end portion of the second pipe,
A second cover provided inside the second frame and covering the second opening so as to be openable and closable;
Provided on one hand of the first frame and the second frame, forming the first frame and the second frame and the first cover and the closed space together with the second cover of the closed state of the closed state, and that A cylindrical member in which one end covers the periphery of the first opening and the other end covers the periphery of the second opening in a state where a closed space is formed ;
Blow means for cleaning the inside of the cylindrical member with gas;
A pipe contact / separation means for passing at least one of the first pipe and the second pipe through the cylindrical member when the first cover and the second cover are in an open state; And
Before connecting the first pipe and the second pipe, the closed space formed by interposing the tubular member between the first cover and the second cover in the closed state, the closed space by the blowing means A pipe connecting device characterized by being configured to clean the inside.   2. The pipe connection device according to claim 1, wherein the first pipe and the second pipe are formed in a circular cylindrical shape, and the cylindrical member is formed in a circular cross section into which the first pipe or the second pipe is inserted. Piping connection device characterized by being made.   3. The pipe connection device according to claim 1, wherein at least one of the first frame body and the second frame body is configured to open and close an end portion of the pipe at a position inside a cover that covers the frame body. A pipe connection device characterized in that is provided.   The pipe connection device according to any one of claims 1 to 3, wherein the blow means has an introduction port and an exhaust port formed in the cylindrical member, and is cleaned when a closed space is formed. A pipe connection characterized by supplying the clean gas from the introduction port to the closed space and exhausting it from the exhaust port, and only supplying the purified gas from the introduction port when the cylindrical member is open to the outside air apparatus. 5. The pipe connection device according to claim 1, wherein the first cover is in contact with a separation position away from a first opening forming surface in which the first opening is formed in the first frame body. DOO in along the Rutotomoni been a separable movable first opening forming surface is provided so as to open and close the first opening by sliding, the first cover and the contact position and the separation position Cover contacting / separating means for a first cover that is moved toward and away from each other, and first cover sliding means for sliding the first cover along the first opening forming surface are provided. Pipe connection device. The pipe connection device according to any one of claims 1 to 5, wherein the second cover is in contact with a separation position away from a second opening forming surface in which the second opening is formed in the second frame . DOO in along the Rutotomoni been a separable movable second opening forming surface is provided so as to open and close the second opening by sliding, the second cover and the contact position and the separation position Cover contacting / separating means for the second cover that is moved toward and away from each other and slide means for second cover that slides the second cover along the second opening forming surface are provided. Pipe connection device.

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