Water meter fastening device

Abstract

The utility model relates to the technical field of water meter detection, and discloses a water meter fastening device which comprises a mounting frame body, a hydraulic cylinder mounted on the mounting frame body and a control assembly used for controlling a piston of the hydraulic cylinder to stretch out and draw back, and the hydraulic cylinder is connected with a first pipeline and a second pipeline. The control assembly comprises a first three-way valve and a second three-way valve, the first three-way valve and the second three-way valve are each provided with a first through pipe, a second through pipe and a third through pipe, a first communicating pipe is connected between the two first through pipes, and a second communicating pipe is connected between the two second through pipes. The first pipeline is connected with one third through pipe, the second pipeline is connected with the other third through pipe, the first communicating pipe is communicated with a water inlet pipe, the second communicating pipe is communicated with a water outlet pipe, and the water inlet pipe is connected with a water pump. The whole operation process is driven by water, the control assembly is not prone to rusting when the hydraulic cylinder is suspended, and the later maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of water meter detection, in particular to a water meter fastening device. BACKGROUND

[0002] In the water pressure resistance detection process of a water meter, the water meter needs to be fixed, and existing fastening devices have two types, one of which is fixed by an up-down screw fastening device, the water meter is placed between the up-down screws, and then the screws are rotated to fix and clamp the water meter by the up-down screws; the up-down screw fastening device is manually operated, which is relatively slow.

[0003] Or further through the pressure of the hydraulic cylinder to fasten the water meter, in order to save costs, the hydraulic cylinder mainly adopts a manual valve to control the extension and retraction of the hydraulic cylinder, further to reduce costs, the liquid in the hydraulic pipeline is usually water. The water pressure resistance detection equipment for the water meter is not commonly used, so the hydraulic cylinder is also in an idle state, because part of the water remains in the manual valve, the manual valve is prone to rust, the service life of the manual valve is shortened, the manual valve needs to be replaced, thereby additional costs are increased. CONTENT OF THE UTILITY MODEL

[0004] In order to further save costs, the application provides a water meter fastening device.

[0005] The application provides a water meter fastening device, which adopts the following technical scheme:

[0006] A water meter fastening device, comprising a mounting frame body, a hydraulic cylinder mounted on the mounting frame body, and a control assembly for controlling the extension and retraction of the piston of the hydraulic cylinder, the hydraulic cylinder is connected with a first pipeline and a second pipeline, the control assembly comprises a first three-way valve and a second three-way valve, the first three-way valve and the second three-way valve each have a first through pipe, a second through pipe and a third through pipe, a first communication pipe is connected between the two first through pipes, a second communication pipe is connected between the two second through pipes, the first pipeline is connected with one of the third through pipes, the second pipeline is connected with the other third through pipe, the first communication pipe is communicated with a water inlet pipe, the second communication pipe is communicated with a water outlet pipe, and the water inlet pipe is connected with a water pump.

[0007] By adopting the technical scheme, the piston of the hydraulic cylinder is used to realize the fastening operation of the water meter. The first three-way valve and the second three-way valve are arranged to flexibly control the inlet and outlet liquid paths of the hydraulic cylinder, and further control the extension and retraction of the piston. The first pipeline and the second pipeline are connected to the third through pipe of a three-way valve, and the first through pipe and the second through pipe of the two three-way valves are connected to each other through the first communication pipe and the second communication pipe, forming a complex liquid path system. The water inlet pipe supplies water through the water pump to provide power for the hydraulic cylinder. This structure can realize stable fastening of the water meter, and the operation is simple. The whole operation process is driven by water, and the control assembly is not easy to rust when the hydraulic cylinder is temporarily stopped, and the maintenance cost is reduced.

[0008] Optionally, the two second through pipes are coaxially arranged, the two first through pipes are parallel to each other, and the first communication pipe and the second communication pipe are parallel to each other.

[0009] By adopting the technical scheme, the two second through pipes are coaxially arranged, the two first through pipes are parallel to each other, and the first communication pipe and the second communication pipe are parallel to each other. The design makes the whole liquid path system more regular, reduces the vortex and resistance in the liquid path, and improves the stability and efficiency of the liquid flow.

[0010] Optionally, the mounting frame body is fixedly provided with a support member for supporting the first communication pipe.

[0011] By adopting the technical scheme, the first communication pipe, the first three-way valve and the second three-way valve connected with the first communication pipe are supported by the support member fixedly installed on the mounting frame body.

[0012] Optionally, the support member is a support rod, and the first communication pipe is hung on the support rod.

[0013] By adopting the technical scheme, each pipeline and the first three-way valve and the second three-way valve can be installed in a hanging manner, and the installation manner is simple.

[0014] Optionally, a groove is formed in the support rod, and the outer wall of the first communication pipe is in contact with the inner wall of the groove.

[0015] By adopting the technical scheme, the contact area between the first communication pipe and the support rod can be increased, so that the stability of the support is improved.

[0016] Optionally, the end of the water outlet pipe away from the second communication pipe is in a bent structure.

[0017] By adopting the technical scheme, the water outlet pipe can also provide certain support to each pipeline and valve of the control assembly.

[0018] Optionally, the water outlet pipe is a bending progressive structure, and the mounting frame body is provided with a supporting portion for supporting the water outlet pipe.

[0019] By adopting the above technical scheme, the supporting effect of the water outlet pipe can be further improved.

[0020] Optionally, the first three-way valve and the second three-way valve are both electric three-way ball valves.

[0021] By adopting the above technical scheme, the first three-way valve and the second three-way valve are both electric three-way ball valves, which have the advantages of simple structure, flexible operation, good sealing performance and the like. Remote operation and automatic control can be realized through electric control, and the intelligent level of the entire device is improved.

[0022] Optionally, the water inlet pipe is connected with a pressure reducing valve.

[0023] By adopting the above technical scheme, the water inlet pressure can be accurately controlled, and the clamping force of the hydraulic cylinder on the water meter can be controlled.

[0024] In summary, the present application has at least one of the following beneficial effects:

[0025] 1. By adopting the hydraulic cylinder and the complex hydraulic system, combining with the advanced elements such as the electric three-way ball valve and the pressure reducing valve, stable fastening and accurate control of the water meter are realized, and the maintenance cost in the later period is saved;

[0026] 2. Each pipeline and valve are installed in a hanging manner, and the installation is simple. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic diagram of the principle structure of embodiment 1 of the present application;

[0028] Figure 2 is a schematic diagram of the overall structure of embodiment 1 of the present application;

[0029] Figure 3 is a schematic diagram of the overall structure of the control assembly of embodiment 1 of the present application;

[0030] Figure 4 is an enlarged schematic diagram of A of Figure 2 ;

[0031] Figure 5 is a schematic diagram of the water outlet pipe structure of embodiment 2 of the present application.

[0032] Explanation of reference signs: 100, test barrel; 10, mounting frame body; 20, hydraulic cylinder; 21, first pipeline; 22, second pipeline; 30, control assembly; 31, first three-way valve; 32, second three-way valve; 33, first through pipe; 34, second through pipe; 35, third through pipe; 36, first communication pipe; 37, second communication pipe; 38, water inlet pipe; 39, water outlet pipe; 40, support rod; 41, groove; 50, bending structure; 60, bending progressive structure; 70, support part; 71, embedding groove; 80, pressure reducing valve; 90, water pump. DETAILED DESCRIPTION

[0033] The following will be described in detail below with reference to the accompanying drawings. Figures 1-5 The present application is further described in detail.

[0034] Example 1

[0035] The present application discloses a water meter fastening device. Referring to Figure 1 A water meter fastening device comprises a mounting frame body 10 and a hydraulic cylinder 20 mounted on the mounting frame body 10, the mounting frame body 10 is used to support the part of the hydraulic cylinder 20 located in the test barrel 100 filled with water, the hydraulic cylinder 20 fixes the water meter during the water pressure resistance detection process of the water meter, and the piston of the hydraulic cylinder 20 is extended or retracted to realize the effect of pressing or loosening the water meter.

[0036] Referring to Figure 2 and Figure 3 The part of the mounting frame body 10 is located outside the test barrel 100, and the mounting frame body 10 is provided with a control assembly 30 for controlling the extension and retraction of the piston of the hydraulic cylinder 20. The control assembly 30 comprises a first three-way valve 31 and a second three-way valve 32, the first three-way valve 31 and the second three-way valve 32 each have a first through pipe 33, a second through pipe 34 and a third through pipe 35, the two first through pipes 33 are vertically arranged and parallel to each other, a first communication pipe 36 is connected between the two first through pipes 33, and the two first through pipes 33 and the first communication pipe 36 can be integrally formed or connected and fixed. The two second through pipes 34 are coaxially arranged, a second communication pipe 37 is connected between the two second through pipes 34, and the first communication pipe 36 and the second communication pipe 37 are parallel to each other. The first communication pipe 36 is communicated with a water inlet pipe 38, the water inlet pipe 38 is connected with a water tank filled with water through a water pump 90, and the water pump 90 is used for pumping water. The second communication pipe 37 is communicated with a water outlet pipe 39, and the water outlet pipe 39 is kept in an open state. The hydraulic cylinder 20 is connected with a first pipeline 21 and a second pipeline 22, the first pipeline 21 and the second pipeline 22 penetrate the test barrel 100, the first pipeline 21 is communicated with the third through pipe 35 of the first three-way valve 31, and the second pipeline 22 is communicated with the third through pipe 35 of the second three-way valve 32.

[0037] The first three-way valve 31 and the second three-way valve 32 are arranged to control the water inlet pipe 38 to be communicated with the first pipeline 21 or the second pipeline 22. If the hydraulic cylinder 20 needs to clamp the water meter, the water inlet pipe 38 is communicated with the first pipeline 21, the first through pipe 33 and the third through pipe 35 of the first three-way valve 31 are communicated, the second through pipe 34 is closed, the first communication pipe 36 is communicated with the water inlet pipe 38, the water pump 90 is started to make the water with pressure pass through the first communication pipe 36, the first through pipe 33 connected with the first three-way valve 31, the third through pipe 35 and then the first pipeline 21 to enter the hydraulic cylinder 20, and the piston is moved downward under the water pressure. The second through pipe 34 and the third through pipe 35 of the second three-way valve 32 are communicated, the water in the second pipeline 22 passes through the second through pipe 34, the third through pipe 35 connected with the second three-way valve 32 and the second communication pipe 37 to enter the water outlet pipe 39, and then the water in the second pipeline 22 is drained.

[0038] If the hydraulic cylinder 20 needs to release the water meter, the water inlet pipe 38 is communicated with the second pipeline 22, the first through pipe 33 connected with the second three-way valve 32 and the third through pipe 35 are communicated, the second through pipe 34 is closed, the water inlet pipe 38 is communicated with the first communication pipe 36, the water pump 90 is started to make the water with pressure pass through the first communication pipe 36, the first through pipe 33 connected with the second three-way valve 32, the third through pipe 35 and then the second pipeline 22 to enter the hydraulic cylinder 20, and the piston is moved upward under the water pressure. The second through pipe 34 and the third through pipe 35 of the first three-way valve 31 are communicated, the water in the first pipeline 21 passes through the third through pipe 35 connected with the first three-way valve 31, the second through pipe 34 and the second communication pipe 37 to enter the water outlet pipe 39, and then the water in the first pipeline 21 is drained.

[0039] The first three-way valve 31 and the second three-way valve 32 can be a manual three-way valve or an electric three-way valve, and the price cost is not high, and the embodiment of the application preferentially adopts an electric three-way valve.

[0040] Further, referring to Figure 1 The water inlet pipe 38 can be further connected with a pressure reducing valve 80, the pressure reducing valve 80 is installed between the water inlet pipe 38 and the water pump 90, and the pressure reducing valve 80 is used to adjust the water pressure, so that the clamping force of the water meter is adjusted.

[0041] Further, referring to Figure 2 and Figure 4 The installation mode of the control assembly 30 on the installation rack body 10 can be designed according to the pipeline distribution of the control assembly 30. The installation rack body 10 is fixedly installed with a support, the support is a support rod 40, one end of the support rod 40 is fixedly installed on the installation rack body 10. The support rod 40 is provided with a groove 41, the first communication pipe 36 is hung on the support rod 40, the groove 41 is in a circular arc groove structure, and the outer pipe wall of the first communication pipe 36 is attached to the inner wall of the groove 41, so that the first communication pipe 36 is stably hung on the support rod 40.

[0042] Further, because the first communication pipe 36 and the second communication pipe 37 are both horizontally arranged, two structural identical support rods 40 can be connected on the mounting frame body 10, and the other support rod 40 is used for hanging the second communication pipe 37, thereby increasing the mounting stability of the entire control assembly 30, and the multiple pipes and the first three-way valve 31 and the second three-way valve 32 are mounted in a hanging manner.

[0043] The implementation principle of the water meter fastening device in the embodiment 1 is as follows:

[0044] In the initial state, the first three-way valve 31 and the second three-way valve 32 are both in the closed state, and the piston of the hydraulic cylinder 20 is in the initial position;

[0045] When the water meter needs to be fastened, first, the opening and closing states of the first three-way valve 31 and the second three-way valve 32 are controlled by the electric actuator of the electric three-way valve, so that the water flows from the water inlet pipe 38, through the first communication pipe 36, the first three-way valve 31, the first pipe 21 of the hydraulic cylinder 20, into the hydraulic cylinder 20, and drives the piston to move forward; at the same time, the hydraulic oil in the second pipe 22 of the hydraulic cylinder 20 flows out to the water outlet pipe 39 through the second three-way valve 32 and the second communication pipe 37;

[0046] When the water meter needs to be loosened, the opening and closing states of the first three-way valve 31 and the second three-way valve 32 are controlled by the electric actuator, so that the water with pressure flows from the water inlet pipe 38, through the first communication pipe 36, the second three-way valve 32, the second pipe 22 of the hydraulic cylinder 20, into the hydraulic cylinder 20, and drives the piston to move backward; at the same time, the hydraulic oil in the first pipe 21 of the hydraulic cylinder 20 flows out to the water outlet pipe 39 through the first three-way valve 31 and the second communication pipe 37, the control assembly 30 controls the change of the water path, and then controls the extension and retraction of the piston of the hydraulic cylinder 20, which not only can save cost, but also can be used stably for a long time, and reduces the subsequent maintenance cost.

[0047] Embodiment 2

[0048] The difference between the embodiment 2 and the embodiment 1 is that the structure of the water outlet pipe 39 is different, and the rest of the structure and principle are basically the same as those of the embodiment 1. The end of the water outlet pipe 39 away from the second communication pipe 37 in the embodiment 2 is in a bending structure 50, and the bending angle is preferably 90°. The bending structure 50 is partially in contact with the ground, so that the water outlet pipe 39 also plays a supporting role for the entire control assembly 30.

[0049] Further, the water outlet pipe 39 itself is in a bending and progressive structure 60, and the mounting frame is further provided with support portions 70 for supporting the water outlet pipe 39. The support portions 70 are in a rod-like structure and are spaced apart by two. The support portions 70 are also provided with embedding grooves 71, and the horizontal part of the water outlet pipe 39 is embedded in the embedding grooves 71. The overall structural design of the support portions 70 and the water outlet pipe 39 increases the supporting effect of the water outlet pipe 39 on the pipeline and the valve.

[0050] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A water meter securing device, characterised in that: The utility model provides a kind of hydraulic cylinder control device, including installation frame body (10) and install on the installation frame body (10) hydraulic cylinder (20), for the control component (30) of the piston extension of hydraulic cylinder (20), the hydraulic cylinder (20) is connected with first pipeline (21) and second pipeline (22), the control component (30) includes first three-way valve (31) and second three-way valve (32), the first three-way valve (31) and the second three-way valve (32) both have first through pipe (33), second through pipe (34) and third through pipe (35), two the first through pipe (33) is connected with first communication pipe (36), two the second through pipe (34) is connected with second communication pipe (37), the first pipeline (21) and a the third through pipe (35) are connected, the second pipeline (22) and another the third through pipe (35) are connected, the first communication pipe (36) is communicated with water inlet pipe (38), the second communication pipe (37) is communicated with water outlet pipe (39), the water inlet pipe (38) is connected with water pump (90).

2. A water meter securing device according to claim 1, wherein: Two the second through pipe (34) coaxially are arranged, two the first through pipe (33) is parallel with each other, the first communication pipe (36) and the second communication pipe (37) are parallel with each other.

3. A water meter securing device according to claim 2, wherein: The support member is fixedly installed on the installation frame body (10) for supporting the first three-way valve (31) and the second three-way valve (32).

4. A water meter securing device according to claim 3, wherein: The support member is support rod (40), and the first communication pipe (36) is hung on the support rod (40).

5. A water meter securing device according to claim 4, wherein: The recess (41) is formed in the support rod (40), and the outer tube wall of the first communication pipe (36) is in contact with the inner wall of the recess (41).

6. A water meter securing device according to claim 1, wherein: The end of the water outlet pipe (39) away from the second communication pipe (37) is in a bent structure (50).

7. A water meter securing device according to claim 6, wherein: The water outlet pipe (39) is in a bent progressive structure (60), and the installation frame body (10) is provided with a support portion (70) for supporting the water outlet pipe (39).

8. A water meter securing device according to claim 1, wherein: The first three-way valve (31) and the second three-way valve (32) are both electric three-way ball valves.

9. A water meter securing device according to claim 1, wherein: The water inlet pipe (38) is connected with a pressure reducing valve (80).

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