JP3605672B2 - Water meter connection device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a water meter connecting device suitable for connecting a water meter in the middle of a water pipe.
[0002]
[Prior art]
In general, a water meter connected in the middle of a water pipe needs to be replaced after a predetermined expiration date. For this reason, a predetermined connecting device is connected to the middle of the water pipe, and a water meter is detachably connected to the connecting device.
[0003]
Conventionally, as this type of connection device, a connection device for a water meter disclosed in Japanese Patent No. 2999719, which has already been proposed by the present applicant, is known. The connection device disclosed in the publication includes a pair of connection mechanism portions facing each other, and connects a water pipe to a water pipe connection portion provided at an outer end of each connection mechanism portion, and inside one connection mechanism portion, A telescopic mechanism having a fixed tube, a movable tube having one end slidably inserted into the fixed tube, and an operation unit for moving the movable tube forward and backward is provided, and is provided at the other end of the movable tube. The water dispenser is configured to be detachable between the water dispenser connection part and the water dispenser connection part provided at the inner end of the other connection mechanism part. A first regulating portion for regulating the circumferential displacement of the tube portion, an operation handle portion rotatably mounted on the outer peripheral surface of the fixed tube portion, a second regulating portion for regulating the axial displacement of the operation handle portion, A threaded portion is provided in which the inner peripheral surface of the handle portion and the outer peripheral surface of the movable tube portion are screwed. Accordingly, if the operation handle is rotated, the movable tube is moved in the forward / backward direction because the circumferential displacement of the movable tube is regulated by the first restricting portion, and the telescopic mechanism expands and contracts. This makes it possible to attach and detach the water meter.
[0004]
[Problems to be solved by the invention]
However, the above-described conventional water meter connection device has the following problems to be improved.
[0005]
First, since the operator needs to rotate the operation handle along the peripheral surface of the fixed tube in the circumferential direction of the fixed tube, the operator must operate the operation handle that is difficult to hold when operating from above. In addition, the operability is difficult, and the operation range (rotation angle) in one operation must be reduced, and the operation takes time.
[0006]
Secondly, it is necessary to secure a space for allowing the movement of the hand accompanying the operation, which causes an increase in the size of the meter box accommodating the connection device, which leads to an increase in cost and deterioration in workability. .
[0007]
The present invention has solved the problems existing in such conventional technology, and can improve the operability and the speed of operation when attaching / detaching a water meter, and at the same time, can reduce the size and cost of the meter box. An object of the present invention is to provide a connection device for a water meter that can contribute to improvement of workability.
[0008]
Means and Embodiments for Solving the Problems
The connecting device 1 of the water meter M according to the present invention (first invention) includes a base 2 and a pair of connecting portions 3p and 3q provided on both sides of the base 2, and each connecting portion 3p and 3q. Are provided with water pipe connection portions 4p, 4q at outer portions 3po, 3qo, and water meter connection portions 5p, 5q communicating with water pipe connection portions 4p, 4q at inner portions 3pi, 3qi of the respective connection portions 3p, 3q. When configuring the connection device provided with the fixed pipe portion, at least one of the water meter connection portions 5p is provided with a fixed pipe portion 10 integrated with the connection body portion 3p and slidably provided in the fixed pipe portion 10 in the axial direction. A movable tube portion 11, an operation shaft portion 12 rotatably provided on the upper surface of the peripheral portion of the fixed tube portion 10 and protruding upward, and an operation shaft portion 12 provided at an upper end of the operation shaft portion 12 to operate the operation shaft portion 12. The detachable portion 12c to which the detachable portion 15c of the operating handle 15 is attached and detached, By providing the tube portion 10, the control tube portion 27 covers the periphery of the detachable portion 12 c, and only the detachable portion 15 c of the operation handle 15 can be detachably attached to the detachable portion 12 c of the operation shaft portion 12. A stopper pin 29 that is provided on the outer peripheral surface to engage with the inner peripheral surface of the regulating cylinder portion 27 and regulates the rotation range of the operation shaft portion 12, and a lower end of the operation shaft portion 12 and a peripheral portion of the movable tube portion 11. And a cam mechanism unit 13 that displaces the movable tube unit 11 in the axial direction according to the rotation position of the operation shaft unit 12. In this case, according to a preferred embodiment, a spring 14 for urging the movable tube portion 11 in a direction of pressing against the water meter M can be provided inside the fixed tube portion 10 and a cam mechanism portion. Reference numeral 13 denotes a convex portion 12s protruding downward from the eccentric position of the lower end of the operation shaft portion 12, and a concave portion 11s provided on the periphery of the movable tube portion 11 and engaged with the convex portion 12s.
[0009]
The connecting device 1 of the water meter M according to the present invention (second invention) includes a base 2 and a pair of connecting portions 3p and 3q provided on both sides of the base 2, and each connecting portion 3p , 3q are provided with water pipe connection portions 4p, 4q at the outer portions 3po, 3qo, and the water meter connection portions 5p are connected to the water pipe connection portions 4p, 4q at the inner portions 3pi, 3qi of the respective connection bodies 3p, 3q. , 5q, at least one of the water meter connection sections 5p, a fixed pipe section 10 integrated with the connection body section 3p, and an axially slidable interior of the fixed pipe section 10. A movable tube portion 11 provided, an operation shaft portion 12 rotatably provided on the upper surface of the peripheral portion of the fixed tube portion 10 and protruding upward, and an operation shaft portion 12 provided at an upper end of the operation shaft portion 12. Detachable part 12c to which the detachable part 15c of the operation handle 15 for operating A cam mechanism 13 for engaging the lower end of the operation shaft 12 with the peripheral portion of the movable tube 11 and displacing the movable tube 11 in the axial direction according to the rotational position of the operation shaft 12; The connecting body portions 3p and 3q are detachably constituted by connecting body main portions 3pm and 3qm and connecting body sub-portions 3ps and 3qs each having a vertically divided shape, and a water meter is connected to each connecting body sub-portion 3ps and 3qs. By providing the parts 5p, 5q, and providing the water pipe connecting parts 4p, 4q in the respective connecting body main parts 3pm, 3qm, a curved water passage S is formed inside, and the connecting body main parts 3pm, 3qm is provided to constitute the base portion 16.
[0010]
Thus, when the operation shaft 12 protruding upward from the upper surface of the fixed tube 10 is rotated, the movable tube 11 is displaced in the axial direction of the fixed tube 10 by the cam mechanism 13. That is, when the eccentric convex portion 12s of the operation shaft portion 12 is rotationally displaced, the movable tube portion 11 having the concave portion 11s engaged with the convex portion 12s is displaced in the axial direction. As a result, the distance between the pair of water meter connection portions 5p and 5q expands or narrows, so that the water meter M can be attached and detached. At this time, the operation handle 15 is attached to and detached from the operation shaft 12. Therefore, at the time of operation, the operation handle 15 can be attached and the operation of the operation shaft portion 12 can be easily performed, and at the time of non-operation, the operation handle 15 can be detached to eliminate unnecessary operation by anyone other than the operator. In addition, if each connecting member sub-portion 3ps, 3qs is configured to be detachable from the base portion 6, for example, any one of a joint pipe, a water stopcock, and a check valve can be attached to the shared base portion 6. .., 3qs... With different functions can be selected and mounted.
[0011]
【Example】
Next, preferred embodiments according to the present invention will be described in detail with reference to the drawings.
[0012]
First, the configuration of the connection device 1 according to the present embodiment will be described with reference to FIGS.
[0013]
The connecting device 1 includes a pair of connecting members 3p and 3q facing each other. Each of the connecting body portions 3p and 3q is formed in a divided shape including the connecting body main portions 3pm and 3qm and the connecting body sub-portions 3ps and 3qs, respectively, and the flange portion 21p provided at the upper end of the connecting body main portions 3pm and 3qm. 21q and the flange portions 22p, 22q provided at the lower ends of the connector sub-portions 3ps, 3qs are configured to be detachable by a plurality of fixing screws 23.
[0014]
As the connection body main parts 3pm and 3qm, two identical connection body main parts 3pm can be used. The connection body main portions 3pm and 3qm are fixed to both sides of the base 2 using a pipe member, respectively, to form the base portion 16. In this case, a horizontal screw hole (female screw) is provided on the opposing surfaces of the connection body main parts 3pm and 3qm, and the screw parts (male screw) provided on both end peripheral surfaces of the base 2 are screwed into the screw holes. To wear. Further, legs 24p and 24q are integrally provided at the bottom of each of the connecting body main parts 3pm and 3qm, and a surface opposite to the surface on which the screw hole is provided in each of the connecting body main parts 3pm and 3qm. The outer portions 3po and 3qo are provided with water pipe connection portions 4p and 4q that project in a tubular shape in the horizontal direction and have screw portions 25p and 25q on the outer peripheral surface. Each of the connecting body main parts 3pm, 3qm has a curved water passage S ... One end of each of the water passages S ... communicates with the distal end opening of the water pipe connection part 4p, 4q, and the other end of the water passage S ... It communicates with the openings provided on the upper end surfaces of the connection body main parts 3pm and 3qm.
[0015]
On the other hand, water connection parts 5p and 5q are provided in the inside portions 3pi and 3qi of the connecting body sub-portions 3ps and 3qs that face each other. In this case, one of the water meter connection portions 5p has a fixed tube portion 10 integrally formed with the connection member sub-portion 3ps, and accommodates the movable tube portion 11 therein so as to be slidable in the axial direction. On the upper surface of the outer peripheral portion of the fixed tube portion 10, a support tube portion 26 which protrudes upward and communicates with the inside of the fixed tube portion 10 is integrally formed, and the operation shaft portion 12 can be rotated by the support tube portion 26. To support. The operation shaft portion 12 has a detachable portion 12c protruding upward from the upper end of the support cylinder portion 26, and protrudes downward from the eccentric position of the lower end as shown in FIG. 12s. Further, a regulating cylinder 27 is screwed onto the upper end of the supporting cylinder 26 to regulate the operation shaft 12 and to cover the periphery of the attached / detached portion 12c. In this case, the attachment / detachment portion 12c is formed to have a rectangular cross section, and the surrounding area of the attachment / detachment portion 12c is covered with the regulating cylinder portion 27, so that only the attachment / detachment portion 15c of the operation handle 15 shown in FIG. Make it removable. The detachable portion 15c has a fitting recess into which the detached portion 12c is inserted. Thus, only the operator holding the operation handle 15 can operate the operation shaft section 12, and unnecessary operations by persons other than the operator can be eliminated. When the operation handle 15 is detached, a protective cap 28 made of plastic or rubber is attached to the upper end of the regulating cylinder 27. Further, a stopper pin 29 is provided on an outer peripheral portion of the operation shaft portion 12 and is engaged with an inner peripheral surface of the restricting cylindrical portion 27 to restrict the operation shaft portion 12 to a rotation range of 180 °.
[0016]
On the other hand, a concave portion 11s shown in FIG. 5 is formed in the outer peripheral portion of the movable tube portion 11. The concave portion 11s of the embodiment is formed by an oval hole opening in the peripheral portion, and the convex portion 12s enters and engages with the concave portion 11s. The cam mechanism 13 is constituted by the projection 12s and the recess 11s. If the cam mechanism section 13 is constituted by such a convex portion 12s and a concave portion 11s, the configuration can be simplified and the cost can be reduced and the size can be reduced. Further, a spring 14 for urging the movable tube portion 11 in a direction of pressing against the water meter M is housed inside the fixed tube portion 10. In addition, the other water connection part 5q is provided with the connection pipe part 30 attached and fixed to the main body of the connection body sub part 3qs.
[0017]
Each of the connecting body sub-portions 3ps and 3qs has a curved water passage S ... One end of each of the water passages S ... communicates with the distal end opening of the water meter connection portion 5p, 5q. The other end communicates with an opening provided on the lower end surface of the connector sub-portion 3ps, 3qs. Thereby, when the connector sub-portions 3ps, 3qs are attached to the connector main portions 3pm, 3qm, the water meter connection portions 5p, 5q and the water pipe connection portions 4p, 4q are connected to each other as shown in FIG. The water passages S that are curved (bent) in the shape of a letter communicate with each other.
[0018]
Further, one (upstream side) connector sub-portion 3ps includes a water stopcock 31. The stopcock 31 has a built-in switching valve body 32, and the switching valve body 32 can be turned by turning the operation lever 33 of FIG. Thereby, it is possible to selectively switch between the water supply mode at the position shown in FIG. 1 and the water stop mode at the position shown in FIG. 4 rotated counterclockwise by 90 ° from this position.
[0019]
Furthermore, the other (downstream side) connector sub-portion 3qs includes a check valve 36. The check valve 36 includes a valve seat 37 provided at the water meter connection portion 5q, an axially displaceable valve body 38 disposed downstream of the valve seat 37, and attaching the valve body 38 to the upstream side. A biasing spring 39 is provided. Accordingly, the check valve 36 is opened by the water pressure when the tap water flows downstream (the right side in FIG. 1), and the reverse pressure is applied when the tap water tries to flow the upstream side (the left side in FIG. 1). To close.
[0020]
By adopting such a structure, the base 2 connecting the pair of connecting body main parts 3pm and 3qm is located coaxially with the water pipes Pf and Pr (see FIG. 7). The disadvantage that the mechanical strength is reduced with respect to the load from Pr can be solved. Therefore, the dimensional accuracy between the water meter connection portions 5p and 5q can be ensured, and the base 2 can be unified, thereby improving reliability and reducing the number of parts. In addition, the water meter M and each of the connecting member sub-portions 3ps and 3qs are arranged at positions offset with respect to the base portion 16, that is, the connecting member main portions 3pm and 3qm provided in the base portion 16 are arranged on the lower side. Since the connector sub-portions 3ps and 3qs for mounting the water dispenser M are arranged on the upper side, the dimensions of the entire apparatus including the water stopcock 31 and the check valve 36 are reduced, and the entire apparatus and a meter box 50 described later are reduced in size. As a result, the supporting strength of the water meter including the water stopcock 31 and the check valve 36 can be improved. Further, each of the connecting body sub-portions 3ps and 3qs is configured to be detachable from the base portion 16 and can share the base portion 16, so that the water stop cock 31 and the check valve 36, as well as simple joint pipes and the like can be used. The connecting body sub-portions 3ps... 3qs... Having different functions can be selected and mounted, so that flexibility (versatility and developability) can be increased, and product types are reduced and the cost is reduced accordingly. Can be achieved. Moreover, since the two main connecting portions 3pm, 3qm use the same main connecting portions 3pm, the number of parts and the cost can be further reduced.
[0021]
Next, a method of using and a function of the connection device 1 according to the present embodiment will be described with reference to FIGS.
[0022]
First, when installing the connection device 1, as shown in FIG. 7, a relatively shallow meter box 50 is embedded in the ground E, and the connection device 1 is installed inside the meter box 50. The meter box 50 includes a box body 51 that opens upward and a cover 52 that closes the opening of the box body 51. The upstream water pipe Pr is connected to the water pipe connection 3po of the installed connection device 1, and the downstream water pipe Pf is connected to the water pipe connection 3qo. Pm indicates a water main connected to the upstream water pipe Pr.
[0023]
Further, a water meter M is mounted between the water meter connection portions 5p and 5q provided in the connection body sub-portions 3ps and 3qs of the connection device 1. At the time of attachment, the protective cap 28 is removed from the regulating cylinder 27, and the attachment / detachment part 15c of the operation handle 15 is attached to the attachment / detachment part 12c of the operation shaft part 12, as shown in FIG. In this case, since only the attaching / detaching portion 15c of the operating handle 15 can be attached to / detached from the attached / detached portion 12c, the operation of the operating shaft portion 12 can be performed only by the operator having the operating handle 15, and Unnecessary operations by persons other than the user are excluded. In addition, since the operation shaft portion 12 projects upward from the upper surface of the peripheral portion of the fixed tube portion 10, when the operation handle 15 is operated from above, it can be operated in the same manner as when operating a rotary faucet. In addition to being able to operate very easily, the operation can be completed by one rotation operation, and the operability at the time of attaching and detaching the water meter M can be improved and the operation can be speeded up. In addition, since there is no need to operate the fixed pipe portion 10 in the circumferential direction, a space for allowing the movement of the hand accompanying the operation is not required. As a result, the meter box 50 can be reduced in size, cost can be reduced, and workability can be improved. Can be improved.
[0024]
If the convex portion 12s of the operation shaft portion 12 is at the virtual line position shown in FIG. 5, the operation handle 15 can be displaced to the solid line position (cross-sectional position) by rotating the operation handle 15 by 180 °. The movable tube portion 11 having the concave portion 11s engaged with the convex portion 12s can be displaced from the virtual line position shown in FIG. This state is shown in FIG.
[0025]
As a result, the movable pipe section 11 is displaced in a direction away from the opposing connection pipe section 30 and the distance between the movable pipe section 11 and the connection pipe section 30 is increased. A water meter M can be interposed between them. Next, when the operation handle 15 is rotated by 180 °, the convex portion 12s of the operation shaft portion 12 is displaced from the solid line position (cross-sectional position) shown in FIG. Due to the elasticity of 14, a displacement is made from the solid line position shown in FIG. 5 to the virtual line position. At this time, since the movable pipe portion 11 is urged by the spring 14, the distal end surface (connection surface) of the movable pipe portion 11 comes into pressure contact with one end of the water meter M and the distal end surface (connection surface) of the connection pipe portion 30. ) Is pressed against the other end of the water meter M. Note that the engagement between the convex portion 12s and the concave portion 11s is released as indicated by a virtual line position shown in FIG.
[0026]
Therefore, since the mounting of the water meter M is completed, the operation handle 11 is detached from the operation shaft portion 12, and the protection cap 28 is mounted on the regulating cylinder 27. This state is shown in FIG. In order to set a normal use state in which tap water is passed through the water meter M, the position of the switching valve body 32 of the water stopcock 31 may be switched to the water supply mode shown in FIG. By the way, at the time of water flow, water leakage between the water meter M and the connection device 1 is reliably prevented by the water pressure. That is, if the inner diameter of the movable pipe portion 11 is selected to be substantially the same as the inner diameter at one end of the water meter M to be pressed, the pressure receiving area of the downstream end face of the movable pipe portion 11 with respect to the water pressure becomes substantially zero. On the other hand, since the pressure receiving area of the upstream end face of the movable pipe section 11 facing the inside of the fixed pipe section 10 substantially matches the area of the upstream end face, the movable pipe section 11 is moved in accordance with the magnitude of the water pressure. The pressing force in press contact with the water meter M increases, and water leakage between the water meter M and the connection device 1 is reliably prevented.
[0027]
On the other hand, when removing the water meter M, first, the position of the switching valve body 32 of the water stopcock 31 is switched to the water stoppage mode shown in FIG. Then, a procedure reverse to the procedure of mounting the water meter M described above may be performed. When the water meter M is detached, the check valve 36 is closed by the water pressure of the tap water in the downstream water pipe Pf, so that the outflow of the tap water in the downstream water pipe Pf is prevented.
[0028]
Although the embodiment has been described in detail above, the present invention is not limited to such an embodiment, and the configuration, shape, material, etc. of the details can be arbitrarily changed without departing from the gist of the present invention. Can be added or deleted. For example, the present invention provides a configuration in which the fixed tube portion 10, the movable tube portion 11, the operation shaft portion 12, and the cam mechanism portion 13 are provided in both of the connection body main portions 3p and 3q, a configuration in which the spring 14 is not used, and a convex portion 12s. This does not exclude the form of the cam mechanism 13 using a portion other than the recess 11s. Further, in the embodiment, the case where the base 2 using the pipe member is attached to the connecting body main parts 3pm and 3qm is shown. However, the base 2, the connecting body main parts 3pm and 3qm may be configured as an integral body. In addition, the connector sub-portions 3ps and 3qs having any different configurations and functions other than those illustrated can be used as the connector sub-portions 3ps and 3qs.
[0029]
【The invention's effect】
As described above, the connecting device according to the first aspect of the present invention has the fixed pipe unit integrated with the connector unit and the inner pipe of the fixed pipe unit slidably provided in at least one of the water meter connecting sections. A movable tube portion, an operation shaft portion rotatably provided on the upper surface of a peripheral portion of the fixed tube portion and protruding upward, and an operation handle provided at an upper end of the operation shaft portion for operating the operation shaft portion. An attachment / detachment part to which the part is attached / detached, a control cylinder part which covers the periphery of the attachment / detachment part by being provided in the fixed tube part, and allows only the attachment / detachment part of the operation handle to be attached to / detached from the attachment / detachment part of the operation shaft part By providing the outer peripheral surface of the part, it engages with the inner peripheral surface of the regulating cylinder part, and engages the stopper pin that regulates the rotation range of the operation shaft part, and engages the lower end of the operation shaft part and the peripheral part of the movable tube part, In order to provide a cam mechanism that displaces the movable tube in the axial direction according to the rotation position of the operation shaft, Achieve the Cormorant Do not significant effect.
[0030]
(1) Since the operation shaft is projected upward from the upper surface of the peripheral portion of the fixed tube, when the operation handle is operated from above, the operation can be performed very easily, and the operation can be completed by one rotation operation. Therefore, the operability can be improved and the operation speed can be improved when the water dispenser is attached and detached. In addition, since there is no need to operate the fixed pipe portion in the circumferential direction, the hand movement accompanying the operation can be reduced. An allowable space is not required, and as a result, a basic effect of contributing to downsizing of the meter box, cost reduction, and improvement of workability can be obtained.
[0031]
(2) Since the control tube portion is provided on the fixed tube portion to cover the portion to be detached and attached, and only the detachable portion of the operation handle is provided with the regulating cylinder portion that can be attached to and detached from the detached portion of the operation shaft portion, the operation handle is held. Only an operator can operate the operation shaft, and unnecessary operations by other than the operator can be eliminated.
[0032]
(3) Since the stopper pin provided on the outer peripheral surface of the operation shaft portion engages with the inner peripheral surface of the regulating cylinder portion and regulates the rotation range of the operation shaft portion, the stopper pin provided on the operation shaft portion is used. By engaging with the inner peripheral surface of the regulating cylinder portion, the operation shaft portion can be regulated within a rotation range of 180 °.
[0033]
Further, the connecting device according to the second aspect of the present invention is a movable pipe provided in at least one of the water meter connecting parts, a fixed pipe part integrated with the connecting part, and an axially slidable inside the fixed pipe part. And an operation shaft portion rotatably provided on the upper surface of the peripheral portion of the fixed tube portion and protruding upward, and a detachable portion of an operation handle provided at an upper end of the operation shaft portion and operating the operation shaft portion. A detachable portion to be attached and detached, and a cam mechanism portion that engages a lower end of the operation shaft portion with a peripheral portion of the movable tube portion and displaces the movable tube portion in the axial direction according to a rotation position of the operation shaft portion, and includes a pair of cam mechanisms. The connector part is configured to be detachable by a connector main part and a connector sub-part, each having a vertically divided shape, a water meter connection part is provided in each connector sub-part, and each connector main part is By forming a water pipe connection part, a curved water channel is formed inside, and each connection body main part on both sides of the base As a result, the mechanical strength against the load from the water pipe can be eliminated, the dimensional accuracy between the water meter connection parts can be secured, and the base can be unified. It is possible to improve reliability and reduce the number of parts. In addition, the dimensions of the entire device including the water stopcock and the check valve are shortened, and the size of the entire device and a meter box to be described later can be reduced, and the supporting strength of the water meter including the water stopcock and the check valve is improved. Can be improved. In addition, it is possible to select and attach a connector sub-portion having a different function, such as a water stopcock or a check valve, or a mere joint pipe or the like, thereby improving flexibility (versatility and developability). In addition, it is possible to reduce the number of product types and the cost associated therewith.
[Brief description of the drawings]
FIG. 1 is a cross-sectional front view of a connection device according to a preferred embodiment of the present invention;
FIG. 2 is an external front view of the connection device,
FIG. 3 is an external perspective view of the connection device.
FIG. 4 is a partial cross-sectional front view showing a state where an operation handle is mounted on an operation shaft of the connection device;
FIG. 5 is an operation explanatory view showing a state where a movable tube portion of the connection device is viewed from a plane direction;
FIG. 6 is a side view of one connecting body of the connecting device as viewed from a movable pipe side;
FIG. 7 is an explanatory diagram of a use state of the connection device;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Connection device 2 Base 3p Connection body 3q Connection body 3po Outside part 3qo Outside part 3pi Inside part 3qi Inside part 3pm Connection body main part 3qm Connection body main part 3ps Connection body subpart 3qs Connection body subpart 4p Water pipe connection part 4q Water pipe connection part 5p Water meter connection part 5q Water meter connection part 10 Fixed pipe part 11 Movable pipe part 11s Concave part 12 Operation shaft part 12c Removable part 12s Convex part 13 Cam mechanism part 14 Spring 15 Operation handle 15c Removable part 16 Base 27 Restriction cylinder 29 Stopper pin M Water meter S Water channel

Claims (4)

A base and a pair of connecting parts provided on both sides of the base. A water pipe connecting part is provided on an outer part of each connecting part, and an inner part of each connecting part communicates with the water pipe connecting part. In the connection device of the water dispenser provided with the water dispenser connection part, at least one of the water dispenser connection parts, a fixed pipe part integrated with the connection body part, and slidable in the axial direction inside the fixed pipe part. A movable tube portion provided on the peripheral portion of the fixed tube portion, and an operation shaft portion rotatably provided on the upper surface of the fixed tube portion and protruding upward, and provided at an upper end of the operation shaft portion to operate the operation shaft portion. An attachment / detachment part to which the attachment / detachment part of the operation handle is attached / detached, and the periphery of the attachment / detachment part is provided by being provided in the fixed tube part, and only the attachment / detachment part of the operation handle is attached / detached to / from the attachment / detachment part of the operation shaft part. A regulating cylinder portion which can be provided on an outer peripheral surface of the operation shaft portion; A stopper pin that engages with an inner peripheral surface of the operation shaft portion and regulates a rotation range of the operation shaft portion; a lower end of the operation shaft portion and a peripheral portion of the movable tube portion are engaged with each other; And a cam mechanism for displacing the movable tube in the axial direction by means of a connecting device. The connection device for a water meter according to claim 1, further comprising a spring provided in the fixed tube portion for urging the movable tube portion in a direction in which the movable tube portion is pressed against the water meter. The said cam mechanism part consists of the convex part which protruded downward from the eccentric position of the lower end in the said operation shaft part, and the peripheral part of the said movable tube part, and it consists of the recessed part which the said convex part engages. Item 1. A connection device for a water meter according to Item 1. A base and a pair of connecting parts provided on both sides of the base. A water pipe connecting part is provided on an outer part of each connecting part, and an inner part of each connecting part communicates with the water pipe connecting part. In the connection device of the water dispenser provided with the water dispenser connection part, at least one of the water dispenser connection parts, a fixed pipe part integrated with the connection body part, and slidable in the axial direction inside the fixed pipe part. A movable tube portion provided on the peripheral portion of the fixed tube portion, and an operation shaft portion rotatably provided on the upper surface of the fixed tube portion and protruding upward, and provided at an upper end of the operation shaft portion to operate the operation shaft portion. An attached / detached portion to which the attachment / detachment portion of the operation handle is attached / detached, a lower end of the operation shaft portion is engaged with a peripheral portion of the movable tube portion, and the movable tube portion is moved in the axial direction by a rotation position of the operation shaft portion. A cam mechanism portion for displacing is provided, and the pair of connecting portions are divided into upper and lower portions, respectively. The connector main portion and the connector sub-portion are configured to be detachable, the water meter connection portion is provided in each connector sub-portion, and the water pipe connection portion is provided in each connector main portion, so that the inside thereof is provided. A connection device for a water meter, wherein a curved water channel is formed, and a main body portion is formed by providing each connecting body main portion on both sides of the base portion.

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