JP3043208U - Support structure for water supply meter - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To hold a holder handle for pressing an adapter, which is provided on the side of a flow path switching valve unit connected to a meter for flow rate measurement, and which supports screw outer diameter portions at both ends of the meter, to the meter side. To provide a structure for holding a supporting portion of a water supply meter for restraining the movement of the meter in the axial direction and stably holding the meter. A holder connected to a flow path switching valve unit is fitted with a holder handle, and by rotating the holder handle, an adapter moves in an axial direction.
A ring-shaped member 1 made of a spring-like member that holds the holder handle 4 on the holder 15 side is provided at a fitting portion between the holder handle 4 and the holder 15. The holder handle 4 is detachably held on the holder 15 side by the spring force of the ring-shaped member 1 and is restrained from moving in the axial direction.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a holding structure of a holder handle which is provided in a support portion which supports an end portion of a meter for waterworks and which is used to hold the meter by pressing the support portion toward the meter side. The present invention relates to a structure for holding the supporting portion of a water supply meter that is suitable for ensuring and stabilizing it.

[0002]

[Prior art]

 First, referring to FIG. 1, the support structure of the meter 8 for flow rate measurement will be briefly described. A flow path switching valve unit 9 and a gate valve unit 10 are arranged on both sides of the meter 8, and the meter 8, the flow path switching valve unit 9 and the gate valve unit 10 are housed in a frame 7. Clean water enters from the flow path switching valve unit 9 side, the flow rate is measured by the meter 8, passes through the sluice valve unit 10, and is supplied to a water outlet or the like of each home. Screw outer diameter portions 11 and 12 are formed at both ends of the meter 8. The screw outer diameter portions 11 and 12 are respectively supported by an adapter 13 on the flow path switching valve unit 9 side and an adapter 14 on the sluice valve unit 10 side, and the meter 8 is sandwiched between the adapters 13 and 14.

The present invention relates to a holding structure around the holder handle 4 provided on the adapter 13 side of the adapters 13 and 14, and a description of the supporting structure on the adapter 14 side will be omitted. FIG. 4 shows a supporting structure around the adapter 13 in the prior art. The holder handle 4 is inserted into the holder 15 fixed to the valve box side of the flow path switching valve unit 9. The adapter 13 is screwed onto the holder handle 4 and is inserted into and supported by the holder 15 side. In addition, the adapter 13 has an inner hole 16 through which water passes, and a saucer portion 17 having a half arc surface for holding the screw outer diameter portion 11 of the meter 8 is formed on the meter 8 side.

The holder handle 4 is a step in which the outer diameter portion 6 that fits into the support hole 5 of the holder 15, the handle portion 18, the screw portion 19 that is screwed into the adapter 13, and the collar 20 of the adapter 13 are fitted. It is formed by forming the hole 21. A ring groove 22 is provided in the outer diameter portion 6 of the holder handle 4. A lock screw 23 screwed to the holder 15 side is inserted into the ring groove 22. By inserting the tip end of the lock screw 23 into the ring groove 22, the holder handle 4 is fixed to the holder 15 side and is restrained from moving in the axial direction.

[0005]

[Problems to be solved by the device]

 As described above, the screw outer diameter portion 11 of the meter 8 is supported by the receiving tray portion 17 of the adapter 13 and is screwed into the holder handle 4 by rotating the holder handle 4 whose movement in the axial direction is restricted. The adapter 13 moves in the axial direction, the end face of the collar 20 is pressed against the end face of the screw outer diameter portion 11, and the meter 8 is sandwiched between the adapter 13 and the adapter 14. As described above, in order to move the adapter 13 in the axial direction, the holder handle 4 needs to be restrained from moving in the axial direction by the lock screw 23, but this locking structure has the following problems.

As described above, when the holder handle 4 is fixed, there is a small gap between the support hole 5 and the outer diameter portion 6 of the holder handle 4 in which the lock screw 23 is inserted into the concave groove 22, and thus the lock screw 23 is fixed. Upon insertion, the holder handle 4 is eccentric by the above-mentioned gap and is fixedly held on the holder 15 side. Therefore, the holder handle 4 is likely to be tilted, the adapter 13 is misaligned, and the support of the screw outer diameter portion 11 by the pan 17 becomes unstable.

Further, as is apparent from FIG. 1, since the lock screw 23 is arranged on the lower side of the frame body 7, it is difficult to rotate the lock screw 23, and the holder handle 4 is held by the holder 15 during maintenance. There is also a problem that it is difficult to remove from the side.

The present invention has been made in view of the above circumstances, and the holder handle can be easily and securely fixed, and the holder handle is not misaligned, and the outer diameter portion of the screw of the meter can be supported. It is an object of the present invention to provide a structure for securely holding a supporting portion of a water supply meter, which ensures stable and reliable operation.

[0009]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is provided on the side of a flow path switching valve unit connected to one end side of a meter for flow rate measurement and housed in a frame together with the meter, and a side end portion of the meter. Of the holder handle for supporting the adapter holding the outer diameter portion of the screw and for restraining the axial movement of the holder handle that presses the adapter toward the outer diameter portion of the screw. A ring that is fitted to the holder handle and engages with the locking portion on the holder side at a fitting portion between the holder handle and the holder handle that connects the holder handle to the flow path switching valve unit side. It is characterized by a holding structure of a supporting portion of a water supply meter in which a strip-shaped member is interposed. The ring-shaped member is a ring-shaped member that forms a discontinuity in a part of the circumference, and the spring is provided in the outer diameter portion of the holder handle that fits into the holder support hole. A recessed groove into which the member fits is formed, and a recessed groove into which the spring member fits is formed in a portion of the support hole of the holder that faces the recessed groove. It is characterized by a rigid structure.

A ring-shaped member that fits into the holder and the holder handle is provided in the fitting portion of the holder and the holder handle to firmly hold the holder and the holder handle by the spring force of the ring-shaped member. The spring force of the ring-shaped member acts almost uniformly along the circumferential direction of the holder handle, and the holder handle 4 is not eccentric. Therefore, the support of the outer diameter portion of the screw by the adapter can be stabilized. In addition, by pressing the holder handle into the holder while fitting it together, the two are connected, and the eccentricity and misalignment of the adapter do not occur as in the prior art. In addition, maintenance work can be easily performed and parts can be easily replaced.

[0011]

[Embodiment of the invention]

 Hereinafter, an embodiment of a holding structure of a supporting portion of a water supply meter of the present invention will be described in detail with reference to the drawings. As shown in FIG. 2, the holder handle 4 includes an outer diameter portion 6 to be fitted into the support hole 5 of the holder, a handle portion 18, a screw portion 19 with which the adapter 13 is screwed, and a collar 20 of the adapter 13. Each of them is formed with a stepped hole portion 21 and the like to be fitted therein. On the outer diameter portion 6 of the holder handle 4, as shown in FIG. 3, a groove 3 having an appropriate depth and width is formed over the circumference.

On the other hand, in the support hole 5 of the holder 15, a concave groove 2 having a semicircular arc-shaped cross section is formed along the inner circumference. The ring-shaped member 1 is fitted into the groove 3 and the groove 2. It should be noted that the ring-shaped member 1 is fitted into the groove 3 on the holder handle 4 side in advance, and when the holder handle 4 is inserted into the holder 15, the ring-shaped member 1 is fitted into the groove 2, It is installed in between.

The ring-shaped member 1 is made of a spring member, and although not shown in the drawing, a cutout portion is formed in a part of its circumference, and the tips of the cutout portions are slightly displaced in the axial direction. It is formed. That is, the ring-shaped member is generally known as a spring ring. When the ring-shaped member 1 is fitted in the groove 3 and the groove 2, the holder handle 4 is pressed in the radial direction and the axial direction by its spring force, and is strongly held on the holder 15 side. .

As described above, in this embodiment, the ring-shaped member 1 is fitted into the holder handle 4 in advance, and in this state, the outer diameter portion of the holder handle 4 is pushed into the support hole 5 of the holder 15 so that the holder handle 4 can be pressed. Is fixed to the holder 15 side, and the movement in the axial direction is restricted. Further, since the spring force of the ring-shaped member 1 is made substantially uniform along the radial direction, the holder handle 4 is fixed to the holder 15 without eccentricity. Therefore, there is no misalignment of the adapter 13 screwed to the holder handle 4, and the screw outer diameter portion 11 of the meter 8 is stably held by the pan 17 of the adapter 13. Further, when the holder handle 4 is removed from the holder 15, the holder handle 4 can be easily pulled out by simply pulling out the holder handle 4 to reduce the diameter of the ring-shaped member 1 in the radial direction. Therefore, even if the holder handle 4 is housed in the frame body 7, the holder handle 4 can be easily attached and detached, and the time for replacement work can be shortened.

In the above description, the structure in which the single ring-shaped member 1 is fitted to the holder handle 4 is adopted, but the structure is not limited to the single structure. Further, the ring-shaped member 1 is not limited to a steel material as long as it is an elastic member.

[0016]

[Effect of the invention]

 1) According to the fixing structure of the supporting portion of the water supply meter according to claim 1 of the present invention, the ring shape which is fitted to the fitting portion of the holder handle fitted to the holder of the flow path switching valve unit. By interposing the member, the holder handle is securely held and the axial restraining force is secured. This ensures that the meter is supported and clamped. 2) According to the fixing structure of the supporting portion of the water supply meter according to claim 2 of the present invention, the ring-shaped member of the spring member is fitted into the concave groove formed in the holder and the holder handle, so that the holder handle. The holder is securely held, and the holder handle is easily attached and detached.

[Brief description of the drawings]

FIG. 1 is a side view showing an overall schematic structure around a meter for water supply to which the present invention is applied.

FIG. 2 is an enlarged partial sectional view showing a detailed structure around a holder handle of the present invention.

FIG. 3 is an enlarged partial sectional view showing a detailed structure around a ring-shaped member in FIG.

FIG. 4 is an enlarged partial sectional view showing a structure around a conventional holder handle.

[Explanation of symbols]

 1 Ring-shaped member 2 Recessed groove 3 Recessed groove 4 Holder handle 5 Support hole 6 Outer diameter part 7 Frame 8 Meter 9 Flow path switching valve unit 10 Gate valve unit 11 Screw outer diameter part 12 Screw outer diameter part 13 Adapter 14 Adapter 15 Holder 16 Inner hole 17 Receptacle part 18 Handle part 19 Screw part 20 Collar 21 Stepped hole part 22 Recessed groove 23 Lock screw

Claims (2)

[Utility model registration claims] 1. A flow path switching valve unit, which is connected to one end side of a meter for flow rate measurement and is housed together with the meter in a frame, and holds a screw outer diameter portion of a side end portion of the meter. A holding structure for supporting the adapter and restraining the axial movement of the holder handle that presses the adapter toward the outer diameter portion of the screw, the holder handle supporting the holder handle and the holder handle for switching the flow path. A ring-shaped member that is fitted to the holder handle and that engages with the holder-side locking portion is provided at a fitting portion between a holder connected to the valve unit side and the holder handle. The structure for holding the supporting portion of the water meter. 2. The ring-shaped member is composed of a ring-shaped spring member that forms a discontinuous portion on a part of the circumference, and an outer diameter portion of the holder handle that fits into a support hole of the holder is formed. A recessed groove into which the spring member fits is formed, and a recessed groove into which the spring member fits is formed in a portion of the support hole of the holder that faces the recessed groove. 1. A structure for holding a supporting portion of the water supply meter according to 1.