CN221745420U - A water meter pressure detection device - Google Patents

Abstract

The application relates to a pressure-resistant detection device of a water meter, which comprises a control panel, a first clamping seat and a second clamping seat which are oppositely arranged, wherein a water meter is placed between the first clamping seat and the second clamping seat, a driving mechanism is arranged on the first clamping seat and is used for pushing the first clamping seat to press the water meter to the second clamping seat, a water delivery mechanism and a pressurizing mechanism are arranged on the second clamping seat, the second clamping seat is provided with a water inlet hole for communicating the water delivery mechanism with the pressurizing mechanism by the water delivery meter, the water delivery mechanism is used for delivering water to enter and exit the water meter, the pressurizing mechanism is used for increasing the water pressure in the water meter, the control panel is electrically connected with a water pressure sensor, the water pressure sensor is used for generating a water pressure signal according to the water pressure of the water meter and sending the water pressure signal to the control panel, and the control panel is used for displaying the water pressure change in the water meter pressure detection process according to the water pressure signal. The application has the effect of improving the accuracy of pressure resistance detection of the water meter.

Description

A water meter pressure detection device

Technical Field

The present application relates to the field of water meter detection, and in particular to a water meter pressure resistance detection device.

Background Art

After production, the water meter needs to undergo a pressure test to test the sealing performance of the water meter.

When testing the water meter's pressure resistance, water is usually first injected into the water meter to increase the water pressure inside the water meter. After the water pressure inside the water meter reaches the design requirements, stop injecting water into the water meter and increasing the pressure. Then let the water meter maintain the increased water pressure for a period of time, which is the pressure maintenance stage. After the pressure maintenance stage is over, test the water pressure inside the water meter. If the water meter is leaking, the water pressure inside the water meter will decrease. By comparing the water pressure after the water meter's pressure maintenance is completed with the water pressure required by the design, it can be determined whether the water meter is qualified.

Regarding the above-mentioned related technologies, due to the internal pressurization of the water meter, the water pressure detection of the water meter generally has errors. Therefore, after the pressurization of the water meter is completed, the water pressure inside the water meter needs to be greater than the design requirements. If the water meter is leaking, and the water meter leaks slowly, the water pressure inside the water meter will decrease more slowly. After the pressure maintenance is completed, the water pressure inside the water meter may still be greater than or equal to the design requirements, resulting in the misjudgment of the water meter as qualified.

Utility Model Content

In order to improve the accuracy of water meter pressure resistance detection, the present application provides a water meter pressure resistance detection device.

The present application provides a water meter pressure resistance detection device, which adopts the following technical solution:

A water meter pressure resistance detection device comprises a control panel, and a first clamp seat and a second clamp seat arranged relatively to each other, wherein the water meter is placed between the first clamp seat and the second clamp seat, the first clamp seat is equipped with a driving mechanism, the driving mechanism is used to push the first clamp seat to press the water meter against the second clamp seat, the second clamp seat is equipped with a water supply mechanism and a boosting mechanism, the second clamp seat is provided with a water inlet hole for connecting the water supply mechanism and the boosting mechanism to the water supply mechanism, the water supply mechanism is used to transport water in and out of the water meter, the boosting mechanism is used to increase the water pressure inside the water meter, the control panel is electrically connected to a water pressure sensor, the water pressure sensor is used to generate a water pressure signal according to the water pressure of the water meter and send it to the control panel, the control panel is used to display the water pressure change during the water meter pressure detection process according to the water pressure signal, the driving mechanism, the water supply mechanism and the boosting mechanism are all electrically connected to the control panel, and the control panel is used to open and close the driving mechanism, the water supply mechanism and the boosting mechanism.

By adopting the above technical solution, the control panel displays the change of water pressure inside the water meter. If the water meter is leaking and the leakage speed is slow, the water pressure inside the water meter is still greater than the design requirement after the pressure maintenance is completed. Then the tester checks the change of water pressure inside the water meter during the pressure maintenance period. If the water pressure inside the water meter gradually decreases during the pressure maintenance period, the water meter is unqualified, thereby improving the accuracy of the water meter pressure resistance test.

Optionally, the first clamp seat is provided with an exhaust hole, one end of the exhaust hole is used to communicate with the inside of the water meter, and the other end of the exhaust hole is located on the peripheral side of the first clamp seat. An exhaust valve is installed on the peripheral side of the first clamp seat, one end of the exhaust valve is connected to one end of the exhaust hole located on the peripheral side of the first clamp seat, and the exhaust valve is electrically connected to a control panel, and the control panel is used to open and close the exhaust valve.

By adopting the above technical solution, when the control panel starts the water supply mechanism, the control panel also opens the exhaust valve. When the water supply mechanism delivers water into the water meter, the air inside the water meter is discharged from the exhaust hole, thereby facilitating the exhaust of the air inside the water meter.

Optionally, the driving mechanism includes a telescopic cylinder, a first water inlet valve, a first drain valve, an air inlet valve and a first reversing valve, the cylinder body of the telescopic cylinder is located on a side of the first clamp seat away from the second clamp seat, the piston rod of the telescopic cylinder is fixedly connected to a side of the first clamp seat away from the second clamp seat, the telescopic cylinder is telescoped toward the second clamp seat, one end of the first water inlet valve and one end of the first drain valve are both connected to a side of the cylinder body of the telescopic cylinder away from the first clamp seat, the first reversing valve has three ends, one end of the air inlet valve is connected to a first end of the first reversing valve, the second end of the first reversing valve is connected to the atmosphere, and the third end of the first reversing valve is connected to a side of the cylinder body of the telescopic cylinder close to the first clamp seat, the first water inlet valve, the first drain valve, the air inlet valve and the first reversing valve are all electrically connected to a control panel, and the control panel is used to open and close the first water inlet valve, the first drain valve, the air inlet valve and the first reversing valve.

By adopting the above technical solution, when the water meter needs to be clamped, the control panel opens the first water inlet valve, closes the first drain valve, and at the same time closes the first reversing valve, so that the side of the cylinder body of the telescopic cylinder close to the first clamping seat is connected to the atmosphere. After that, water enters the telescopic cylinder from the first water inlet valve, and the air inside the telescopic cylinder is discharged from the first reversing valve, so that the piston rod of the telescopic rod pushes the first clamping seat to move toward the second clamping seat, thereby facilitating the first clamping seat to press the water meter against the second clamping seat.

When the water meter needs to be removed from the first clamping seat and the second clamping seat, the control panel closes the first water inlet valve, opens the first drain valve, and simultaneously activates the first reversing valve to connect the cylinder body of the telescopic cylinder close to the first clamping seat with the air inlet valve. Air is pumped into the air inlet valve to discharge the water inside the telescopic cylinder from the first drain valve, and the piston rod of the telescopic cylinder drives the first clamping seat away from the second clamping seat, thereby facilitating the removal of the water meter from between the first clamping seat and the second clamping seat.

Optionally, there are at least two first water inlet valves.

By adopting the above technical solution, when the first clamp seat presses the water meter against the second clamp seat, each first water inlet valve is opened first, and the speed of water entering the telescopic cylinder is accelerated, thereby accelerating the moving speed of the first clamp seat toward the second clamp seat. After the first clamp seat approaches the water meter, one first water inlet valve is retained, and the other first water inlet valves are closed, thereby reducing the moving speed of the first clamp seat toward the second clamp seat, thereby reducing the possibility of the first clamp seat and the second clamp seat crushing the water meter. After the first clamp seat and the second clamp seat clamp the water meter, all the first water inlet valves are closed.

Optionally, the water supply mechanism includes a pressure-maintaining valve, a second water inlet valve and a second drain valve, one end of the pressure-maintaining valve is connected to a side of the second clamp seat away from the first clamp seat, one end of the pressure-maintaining valve is connected to the water inlet hole, one end of the pressure-maintaining valve away from the second clamp seat is connected to one end of the second water inlet valve and one end of the second drain valve, the pressure-maintaining valve, the second water inlet valve and the second drain valve are all electrically connected to a control panel, and the control panel is used to open and close the pressure-maintaining valve, the second water inlet valve and the second drain valve.

By adopting the above technical solution, when water is injected into the water meter, the second water inlet valve and the pressure-maintaining valve are opened, and the second drain valve is closed, so that water enters the water meter. During the pressure-maintaining stage, the pressure-maintaining valve and the second water inlet valve are closed, thereby reducing the occurrence of water inside the water meter being discharged from the pressure-maintaining valve. When the water inside the water meter needs to be discharged after the pressure-maintaining is completed, the pressure-maintaining valve and the second drain valve are opened, thereby facilitating the discharge of water inside the water meter through the pressure-maintaining valve and the second drain valve.

Optionally, it also includes a main water inlet valve, one end of which is connected to one end of the first water inlet valve away from the telescopic cylinder and one end of the second water inlet valve away from the pressure maintaining valve, and the main water inlet valve is electrically connected to a control panel, and the control panel is used to open and close the main water inlet valve.

By adopting the above technical solution, the water supply mechanism and the driving mechanism share a main water inlet valve, thereby facilitating the delivery of water to the water supply mechanism and the driving mechanism together, thereby reducing costs.

Optionally, the boosting mechanism includes a second reversing valve, a cylinder, a boosting main valve and a boosting valve, the second reversing valve having four ends, one end on one side of the second reversing valve being connected to the extending end of the cylinder, the other end on one side of the second reversing valve being connected to the reset end of the cylinder, one end on the other side of the second reversing valve being connected to one end of the boosting valve, one end of the boosting main valve being connected to a side of the second clamp seat away from the first clamp seat, one end of the boosting main valve being connected to a water inlet hole, the other end of the boosting main valve being connected to a piston rod of the cylinder, the piston rod of the cylinder being used to push water from the boosting main valve to the inside of the water meter, the second reversing valve, the boosting main valve and the boosting valve being electrically connected to a control panel, and the control panel being used to open and close the second reversing valve, the boosting main valve and the boosting valve.

By adopting the above technical solution, when it is necessary to increase the water pressure inside the water meter, the second reversing valve connects the boosting valve and the protruding end of the cylinder, and the second reversing valve allows the reset end of the cylinder to be connected to the atmosphere. After that, air is injected from the boosting valve into the protruding end of the cylinder, so that the cylinder is pushed out. The cylinder presses the water from the boosting main valve into the water meter. After the water pressure inside the water meter is greater than the design requirement, the boosting main valve is closed to enter the pressure holding stage. When entering the pressure holding stage, the second reversing valve connects the boosting valve and the reset end of the cylinder, and the second reversing valve allows the protruding end of the cylinder to be connected to the atmosphere. After that, air is injected from the boosting valve into the reset end of the cylinder, so that the cylinder retracts and resets. The water inside the water meter is compressed by the expansion and contraction of the cylinder, so that it is convenient to pressurize the inside of the water meter.

Optionally, it also includes an intake main valve, one end of which is connected to one end of the intake valve away from the first reversing valve and one end of the boost valve away from the second reversing valve, and the intake main valve is electrically connected to a control panel, which is used to open and close the intake main valve.

By adopting the above technical solution, the intake valve and the boost valve share a main intake valve, thereby facilitating the delivery of air to the intake valve and the boost valve together, thereby reducing costs.

Optionally, a plurality of annular grooves are provided on the mutually facing surfaces of the first clamping seat and the second clamping seat, and a first elastic ring is fixedly installed inside the annular groove, and a portion of the first elastic ring is located outside the annular groove.

By adopting the above technical solution, the first elastic ring plays a buffering role, thereby reducing the possibility of the first clamping seat and the second clamping seat damaging the water meter.

Optionally, support rings are fixedly mounted on the inner wall of the air exhaust hole and the inner wall of the water inlet hole, and a second elastic ring is fixedly mounted on the sides of the two support rings facing each other.

By adopting the above technical solution, both ends of some water meters are flanges, and both ends of other water meters are pipes. When both ends of the water meter are pipes, the pipes at both ends of the water meter are inserted into the water inlet and the exhaust hole, supported by the support ring, and the second elastic ring plays a buffering role, thereby reducing the damage of the water meter under the squeezing of the first clamp seat and the second clamp seat. When both ends of the water meter are flanges, the first clamp seat and the second clamp seat directly clamp the water meter, so that it is convenient to apply to different water meters.

In summary, the present application includes at least one of the following beneficial technical effects:

The water pressure change of the water meter during the pressure test is displayed on the control panel. After the pressure maintenance is completed, if the water pressure inside the water meter is greater than the design requirement, check the water pressure change of the water meter during the pressure maintenance period. If the water meter is leaking, the water pressure of the water meter during the pressure maintenance period will gradually decrease, so that the water meter is judged to be unqualified, thereby improving the accuracy of the water meter pressure test;

By opening the exhaust hole on the first clamping seat, it is convenient to discharge the air inside the water meter from the exhaust hole when water is injected into the water meter.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of Example 1 of the present application;

FIG2 is a schematic structural diagram of a second clamping seat in Example 2 of the present application;

Fig. 3 is a cross-sectional view of Fig. 2 taken along line A-A.

Explanation of the reference numerals in the accompanying drawings: 1. control panel; 2. first clamp seat; 3. second clamp seat; 4. driving mechanism; 41. telescopic cylinder; 42. first water inlet valve; 43. first drain valve; 44. air inlet valve; 45. first reversing valve; 5. exhaust hole; 6. water supply mechanism; 61. pressure maintaining valve; 62. second water inlet valve; 63. second drain valve; 7. water inlet main valve; 8. boosting mechanism; 81. second reversing valve; 82. cylinder; 83. boosting main valve; 84. boosting valve; 9. air inlet main valve; 10. water pressure sensor; 11. ring groove; 12. first elastic ring; 13. second elastic ring; 14. support ring; 15. water inlet hole; 16. exhaust valve.

DETAILED DESCRIPTION

The present application is further described in detail below in conjunction with Figures 1-3.

Example 1

The embodiment of the present application discloses a water meter pressure resistance detection device.

The water meter pressure test device is generally installed in water meter pressure test equipment such as horizontal press, vertical series press, vertical manual press, etc.

1 , a water meter withstand voltage detection device comprises a control panel 1, and a first clamping seat 2 and a second clamping seat 3 arranged opposite to each other. The first clamping seat 2 and the second clamping seat 3 are used to place the water meter.

The first clamping seat 2 is provided with a driving mechanism 4, which includes a telescopic cylinder 41, a first water inlet valve 42, a first drain valve 43, an air inlet valve 44 and a first reversing valve 45. The telescopic cylinder 41 generally comprises a cylinder body, a piston rod and a plug, wherein the plug is installed inside the cylinder body, one end of the piston rod is fixedly connected to the plug, and the other end of the piston rod passes through one side of the cylinder body.

The cylinder body of the telescopic cylinder 41 is located at a side of the first clamping seat 2 away from the second clamping seat 3, and the piston rod of the telescopic cylinder 41 is fixedly connected to the side of the first clamping seat 2 away from the second clamping seat 3. The telescopic cylinder 41 is telescoped toward the second clamping seat 3. One end of the first water inlet valve 42 and one end of the first drain valve 43 are both connected to the side of the cylinder body of the telescopic cylinder 41 away from the first clamping seat 2, and one end of the first water inlet valve 42 and one end of the first drain valve 43 are both located at a side of the plug of the telescopic rod away from the piston rod of the telescopic cylinder 41.

The first reversing valve 45 has three ends. One end of the air inlet valve 44 is used to let in air, and the other end of the air inlet valve 44 is connected to the first end of the first reversing valve 45. The second end of the first reversing valve 45 is connected to the atmosphere. The third end of the first reversing valve 45 is connected to the side of the cylinder body of the telescopic cylinder 41 close to the first clamping seat 2. The first water inlet valve 42, the first drain valve 43, the air inlet valve 44 and the first reversing valve 45 are all electrically connected to the control panel 1, and the control panel 1 is used to open and close the first water inlet valve 42, the first drain valve 43, the air inlet valve 44 and the first reversing valve 45.

When it is necessary to push the first clamping seat 2 to press the water meter against the second clamping seat 3, the control panel 1 opens the first water inlet valve 42, closes the first drain valve 43 and the air inlet valve 44, and the first reversing valve 45 allows the cylinder body of the telescopic cylinder 41 to be connected to the atmosphere. Then water enters the cylinder body of the telescopic cylinder 41 from the first water inlet valve 42, and the water is on the side of the plug of the telescopic cylinder 41 away from the first clamping seat 2. The air inside the cylinder body of the telescopic cylinder 41 is discharged from the first reversing valve 45, so that the piston rod of the telescopic cylinder 41 pushes the first clamping seat 2 to move toward the second clamping seat 3, thereby facilitating the pressing of the water meter.

When the water meter needs to be loosened, the control panel 1 closes the first water inlet valve 42, opens the first drain valve 43 and the air inlet valve 44, and the first reversing valve 45 allows the cylinder body of the telescopic cylinder 41 to communicate with the air inlet valve 44. Then the water is discharged from the cylinder body of the telescopic cylinder 41 through the first drain valve 43. The pumped air is sent from the air inlet valve 44 into the cylinder body of the telescopic cylinder 41, and the air is close to the side of the plug of the telescopic cylinder 41 close to the first clamping seat 2, so that the piston rod of the telescopic cylinder 41 drives the first clamping seat 2 to move away from the second clamping seat 3, thereby facilitating the loosening of the water meter.

There are at least two first water inlet valves 42, and in the embodiment of the present application, there are two first water inlet valves 42. When water is injected into the cylinder body of the telescopic cylinder 41, all the first water inlet valves 42 are opened first, thereby accelerating the speed at which the telescopic cylinder 41 drives the first clamp seat 2 to move toward the second clamp seat 3, thereby accelerating the speed at which the first clamp seat 2 presses the water meter against the second clamp seat 3. When the first clamp seat 2 and the second clamp seat 3 are about to clamp the water meter, one first water inlet valve 42 is retained and the other water inlet valves are closed, thereby slowing down the moving speed of the first clamp seat 2 toward the second clamp seat 3. By slowing down the moving speed of the first clamp seat 2 toward the second clamp seat 3, it is convenient to close the first water inlet valve 42 in time after the first clamp seat 2 and the second clamp seat 3 clamp the water meter, thereby reducing the possibility of the first clamp seat 2 and the second clamp seat 3 crushing the water meter.

The first clamp seat 2 is provided with an exhaust hole 5, one end of which is located on a side of the first clamp seat 2 close to the second clamp seat 3 and is used to communicate with the inside of the water meter. The other end of the exhaust hole 5 is located on the peripheral side of the first clamp seat 2. An exhaust valve 16 is installed on the peripheral side of the first clamp seat 2, and one end of the exhaust valve 16 is communicated with one end of the exhaust hole 5 located on the peripheral side of the first clamp seat 2. The second clamp seat 3 is provided with a water inlet hole 15, and the water inlet hole 15 is used to communicate with the water meter. The exhaust valve 16 is electrically connected to the control panel 1, and the control panel 1 is used to open and close the exhaust valve 16.

When water is poured into the water meter from the water inlet 15 and the water does not fill the water meter, the control panel 1 opens the exhaust valve 16, thereby facilitating the exhaust of air inside the water meter from the exhaust hole 5. After the water inside the water meter is filled, the control panel 1 closes the exhaust valve 16, thereby reducing the occurrence of water inside the water meter flowing out from the exhaust hole 5.

The second clamp seat 3 is provided with a water supply mechanism 6, which includes a pressure-maintaining valve 61, a second water inlet valve 62, and a second water drain valve 63. One end of the pressure-maintaining valve 61 is connected to the side of the second clamp seat 3 away from the first clamp seat 2, and one end of the pressure-maintaining valve 61 is connected to the water inlet hole 15. One end of the pressure-maintaining valve 61 away from the second clamp seat 3 is connected to one end of the second water inlet valve 62 and one end of the second water drain valve 63, and the pressure-maintaining valve 61, the second water inlet valve 62, and the second water drain valve 63 are all electrically connected to the control panel 1. The control panel 1 is used to open and close the pressure-maintaining valve 61, the second water inlet valve 62, and the second water drain valve 63.

When water needs to be added to the water meter, the control panel 1 opens the second water inlet valve 62 and the pressure-maintaining valve 61, and water is sent into the water meter from the second water inlet valve 62 and the pressure-maintaining valve 61. When the water meter needs to maintain pressure, the control panel 1 closes the second water inlet valve 62 and the pressure-maintaining valve 61, so that the water meter enters the pressure-maintaining stage. After the water meter has completed pressure maintenance, the control panel 1 opens the pressure-maintaining valve 61 and the drain valve, and the water inside the water meter is discharged from the pressure-maintaining valve 61 and the drain valve.

The water meter pressure resistance detection device also includes a water inlet main valve 7, which is electrically connected to the control panel 1, and the control panel 1 is used to open and close the water inlet main valve 7. One end of the water inlet main valve 7 is connected to one end of the first water inlet valve 42 away from the telescopic cylinder 41 and one end of the second water inlet valve 62 away from the pressure maintaining valve 61. The other end of the water inlet main valve 7 is connected to a water source. The water source is water pumped by a water pump. After the water source sends water into the water inlet main valve 7, the water flows to the telescopic cylinder 41 and the water meter respectively, thereby facilitating the reduction of the number of water sources to be set, thereby reducing costs.

The second clamp seat 3 is provided with a boosting mechanism 8, and the boosting mechanism 8 includes a second reversing valve 81, a cylinder 82, a boosting main valve 83 and a boosting valve 84. One end of the boosting main valve 83 is connected between the pressure-maintaining valve 61 and the second clamp seat 3, one end of the boosting main valve 83 is connected to the water inlet 15, and the other end of the boosting main valve 83 is connected to the piston rod of the cylinder 82. In the embodiment of the present application, there are pipelines at both ends of each valve, and each valve is connected through the pipeline. The piston rod damping of the cylinder 82 penetrates into the interior of the pipeline connected to the boosting main valve 83, and expands and contracts through the cylinder 82, thereby changing the water pressure inside the water meter.

The second reversing valve 81 has four ends, one end of the second reversing valve 81 is connected to the extending end of the cylinder 82, and the other end of the second reversing valve 81 is connected to the reset end of the cylinder 82. When air is injected into the extending end of the cylinder 82, the cylinder 82 extends; when air is injected into the reset end of the cylinder 82, the cylinder 82 contracts.

One end of the other side of the second reversing valve 81 is connected to one end of the boosting valve 84, and the other end of the other side of the second reversing valve 81 is connected to the atmosphere. The second reversing valve 81, the boosting main valve 83 and the boosting valve 84 are all electrically connected to the control panel 1, and the control panel 1 is used to open and close the second reversing valve 81, the boosting main valve 83 and the boosting valve 84.

When the pressure inside the water meter needs to be increased, the control panel 1 opens the pressure boosting valve 84 and the pressure boosting main valve 83, the second reversing valve 81 connects the pressure boosting valve 84 with the extension end of the cylinder 82, and the reset end of the cylinder 82 is connected to the atmosphere. Then, air enters the cylinder 82 from the pressure boosting valve 84, so that the cylinder 82 extends, thereby increasing the water pressure inside the water meter.

After the water meter is pressurized, the control panel 1 closes the boosting main valve 83. The second reversing valve 81 connects the boosting valve 84 with the reset end of the cylinder 82, and the extended end of the cylinder 82 is connected to the atmosphere. After that, air enters the cylinder 82 from the boosting valve 84, so that the cylinder 82 retracts, thereby facilitating the reset of the cylinder 82.

In the embodiment of the present application, there are three boosting valves 84, and the three boosting valves 84 are all connected to the same end of the second reversing valve 81. By opening different boosting valves 84, the required boosting size inside the water meter can be set.

The water meter withstand pressure detection device also includes an air inlet main valve 9, which is electrically connected to a control panel 1, and the control panel 1 is used to open and close the water inlet main valve 7. One end of the water inlet main valve 7 is connected to an end of the air inlet valve 44 away from the first reversing valve 45 and an end of the boost valve 84 away from the second reversing valve 81. The other end of the water inlet main valve 7 is connected to an air source. The air source is air pumped by an air compressor. After the air source sends air into the air inlet main valve 9, the air flows to the cylinder 82 and the telescopic rod respectively, thereby facilitating the reduction of the number of air source settings, thereby reducing costs.

The control panel 1 is electrically connected to a water pressure sensor 10, which is disposed between the boosting main valve 83, the pressure maintaining valve 61 and the second clamping seat 3, so that the water pressure sensor 10 can detect the water pressure inside the water meter. The water pressure sensor 10 generates a water pressure signal according to the water pressure inside the water meter and sends it to the control panel 1. The control panel 1 displays a change curve of the water pressure according to the change of the water pressure signal during the pressure resistance detection process.

After the water meter pressure test is completed, if the water pressure inside the water meter is still higher than the design requirement, the tester will check the water pressure change curve displayed on the control panel 1. If the water pressure inside the water meter gradually decreases during the pressure maintenance stage, the water meter is unqualified.

The implementation principle of a water meter withstand pressure detection device in the embodiment of the present application is as follows: the water meter is placed between the first clamp seat 2 and the second clamp seat 3, the control panel 1 opens the first water inlet valve 42 and the water inlet main valve 7, and the first reversing valve 45 allows the side of the telescopic cylinder 41 located near the first clamp seat 2 to communicate with the atmosphere, so that water is continuously injected into the telescopic cylinder 41, and the piston rod of the telescopic cylinder 41 is pushed out, so that the first clamp seat 2 and the second clamp seat 3 clamp the water meter. After the first clamp seat 2 and the second clamp seat 3 clamp the water meter, the control panel 1 closes the first water inlet valve 42.

After closing the first water inlet valve 42, the control panel 1 opens the exhaust valve 16, the second water inlet valve 62 and the pressure-maintaining valve 61, and water is continuously injected into the water meter, and the air inside the water meter is discharged from the exhaust valve 16. After the water meter is filled with water, the control panel 1 closes the exhaust valve 16, the second water inlet valve 62 and the pressure-maintaining valve 61, and then opens the boosting main valve 83, the air intake main valve 9 and the boosting valve 84, and the second reversing valve 81 allows the extended end of the cylinder 82 to communicate with the boosting valve 84, and the reset end of the cylinder 82 to communicate with the atmosphere, so that the piston rod of the cylinder 82 is extended, thereby increasing the water pressure inside the water meter.

After the water pressure inside the water meter is greater than the design water pressure, the booster main valve 83 is closed. After the booster main valve 83 is closed, the second reversing valve 81 allows the reset end of the cylinder 82 to communicate with the booster valve 84, and the extended end of the cylinder 82 to communicate with the atmosphere, thereby facilitating the retraction of the cylinder 82. After the cylinder 82 retracts, the control panel 1 closes the booster valve 84 and the intake main valve 9.

After the internal pressurization of the water meter is completed, the water meter enters the pressure maintenance stage. After the water meter maintains pressure for a period of time, the water meter pressure resistance test is completed. The control panel 1 opens the main air intake valve 9, the air intake valve 44 and the first drain valve 43, and the first reversing valve 45 allows the cylinder body of the telescopic cylinder 41 to be connected with the air intake valve 44, so that air enters the cylinder body of the telescopic cylinder 41, and the water inside the telescopic cylinder 41 is discharged from the first drain valve 43, so that the telescopic cylinder 41 retracts to drive the first clamp seat 2 to move away from the second clamp seat 3, thereby facilitating the removal of the water meter from the first clamp seat 2 and the second clamp seat 3.

During the pressure test of the water meter, the water pressure sensor 10 generates a water pressure signal according to the water pressure inside the water meter and sends it to the control panel 1 in real time. The control panel 1 forms a change curve according to the water pressure signal and displays it. The tester judges that the water meter is unqualified if the change curve gradually decreases during the pressure maintenance stage. If the water meter pressure test is completed, the water pressure inside the water meter is greater than the design requirement, and the change curve does not gradually decrease during the pressure maintenance stage, the water meter is judged to be qualified, thereby improving the accuracy of the water meter pressure test.

Example 2

The embodiment of the present application discloses a water meter pressure resistance detection device.

2 and 3, the difference between the water meter withstand voltage detection device of the embodiment of the present application and the embodiment 1 is that the first clamping seat 2 and the second clamping seat 3 are provided with a plurality of annular grooves 11 on the mutually facing sides, the plurality of annular grooves 11 are concentrically arranged, and the diameters of the plurality of annular grooves 11 gradually increase. A first elastic ring 12 is fixedly installed inside each annular groove 11, and a portion of the first elastic ring 12 is located outside the annular groove 11.

When the first clamping seat 2 and the second clamping seat 3 clamp the water meter, the first elastic ring 12 is pressed against the water meter, thereby reducing the possibility of damage to the water meter under the pressure of the first clamping seat 2 and the second clamping seat 3. At the same time, the first elastic ring 12 also plays a role in preventing leakage.

The inner wall of the exhaust hole 5 and the inner wall of the water inlet hole 15 are fixedly installed with a support ring 14, and the second elastic ring 13 is fixedly installed on the side of the two support rings 14 facing each other. Generally, a water meter with a large water volume has flanges at both ends. A water meter with a small water volume has a pipe at both ends. The pipes at both ends of the water meter with a small water volume are inserted into the exhaust hole 5 and the water inlet hole 15, and the second elastic ring 13 plays a sealing role, while reducing the damage of the water meter under the squeezing of the first clamp seat 2 and the second clamp seat 3.

The implementation principle of a water meter pressure resistance detection device in an embodiment of the present application is as follows: by arranging a support ring 14 and a second elastic ring 13 in the water inlet hole 15 and the exhaust hole 5, it is convenient to apply pressure resistance detection to different water meters.

The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A withstand voltage detection device of water gauge, its characterized in that: including control panel (1), still have relative first holder (2) and second holder (3) that set up, be used for placing the water gauge between first holder (2) and second holder (3), actuating mechanism (4) are installed to first holder (2), actuating mechanism (4) are used for promoting first holder (2) and compress tightly in second holder (3) with the water gauge, water supply mechanism (6) and booster mechanism (8) are installed to second holder (3), water supply mechanism (6) and booster mechanism (8) are offered to second holder (3), water supply mechanism (6) are used for carrying water business turn over water gauge, booster mechanism (8) are used for increasing the inside water pressure of water gauge, control panel (1) electricity is connected with water pressure sensor (10), water pressure sensor (10) are used for producing water pressure signal and sending to control panel (1) according to the water gauge water pressure, control panel (1) are used for showing water pressure signal and detect in water gauge pressure variation, water supply mechanism (6) and booster mechanism (8) inlet opening and closing control panel (1), water supply mechanism (4) are used for controlling with actuating mechanism (1) and pressure equalizing mechanism (8), water supply mechanism (1) is used for increasing the inside water gauge A water delivery mechanism (6) and a pressurizing mechanism (8).

2. The pressure-resistant water meter detecting device according to claim 1, wherein: the water meter is characterized in that the first clamping seat (2) is provided with an exhaust hole (5), one end of the exhaust hole (5) is used for being communicated with the inside of the water meter, the other end of the exhaust hole (5) is located on the periphery of the first clamping seat (2), the periphery of the first clamping seat (2) is provided with an exhaust valve (16), one end of the exhaust valve (16) is communicated with one end of the exhaust hole (5) located on the periphery of the first clamping seat (2), the exhaust valve (16) is electrically connected with the control panel (1), and the control panel (1) is used for opening and closing the exhaust valve (16).

3. The pressure-resistant water meter detecting device according to claim 1, wherein: the driving mechanism (4) comprises a telescopic cylinder (41), a first water inlet valve (42), a first water outlet valve (43), an air inlet valve (44) and a first reversing valve (45), wherein the cylinder body of the telescopic cylinder (41) is located on one side, far away from the second clamping seat (3), of the first clamping seat (2), a piston rod of the telescopic cylinder (41) is fixedly connected with one side, far away from the second clamping seat (3), of the first clamping seat (2), the telescopic cylinder (41) stretches towards the second clamping seat (3), one end of the first water inlet valve (42) and one end of the first water outlet valve (43) are connected to one side, far away from the first clamping seat (2), of the cylinder body of the telescopic cylinder (41), the first reversing valve (45) is provided with three ends, one end of the air inlet valve (44) is connected with the first end of the first reversing valve (45), the second end of the first reversing valve (45) is connected to the atmosphere, the third end of the first reversing valve (45) is connected to one side, close to the first clamping seat (2), the first water inlet valve (42), the first water outlet valve (43) and the first water outlet valve (43) are connected to the first water inlet valve (43) and the first reversing valve (43) and are electrically connected to the first water outlet valve (43) and are electrically opened and closed An intake valve (44) and a first reversing valve (45).

4. A pressure-resistant water meter testing device according to claim 3, wherein: at least two first water inlet valves (42) are arranged.

5. A pressure-resistant water meter testing device according to claim 3, wherein: the water supply mechanism (6) comprises a pressure maintaining valve (61), a second water inlet valve (62) and a second water discharge valve (63), one end of the pressure maintaining valve (61) is connected with one side, far away from the first clamping seat (2), of the second clamping seat (3), one end of the pressure maintaining valve (61) is communicated with the water inlet hole (15), one end, far away from the second clamping seat (3), of the pressure maintaining valve (61) is connected with one end of the second water inlet valve (62) and one end of the second water discharge valve (63), and the pressure maintaining valve (61), the second water inlet valve (62) and the second water discharge valve (63) are all electrically connected with the control panel (1), and the control panel (1) is used for opening and closing the pressure maintaining valve (61), the second water inlet valve (62) and the second water discharge valve (63).

6. The pressure resistance detection device for a water meter according to claim 5, wherein: the novel water inlet device is characterized by further comprising a water inlet main valve (7), wherein one end of the water inlet main valve (7) is connected with one end of the first water inlet valve (42) far away from the telescopic cylinder (41) and one end of the second water inlet valve (62) far away from the pressure maintaining valve (61), the water inlet main valve (7) is electrically connected with the control panel (1), and the control panel (1) is used for opening and closing the water inlet main valve (7).

7. The pressure-resistant water meter detecting device according to claim 2, wherein: the utility model provides a supercharging mechanism (8) including second switching-over valve (81), cylinder (82), pressure boost master valve (83) and pressure boost valve (84), second switching-over valve (81) have four ends, the one end of second switching-over valve (81) one side is connected in the extension end of cylinder (82), the other end of second switching-over valve (81) one side is connected in the reset end of cylinder (82), the one end of second switching-over valve (81) opposite side is connected with the one end of pressure boost valve (84), the one end of pressure boost master valve (83) is connected in one side that second holder (3) kept away from first holder (2), the one end and the inlet opening and closing of pressure boost master valve (83) are connected, the other end of pressure boost master valve (83) is connected with the piston rod of cylinder (82), the piston rod of cylinder (82) is used for pushing water from pressure boost master valve (83) to the inside the water gauge, second switching-over valve (81), pressure boost master valve (83) and pressure boost valve (84) all are connected with control panel (1), pressure boost valve (84) are used for opening and closing.

8. The pressure resistance detection device for a water meter according to claim 7, wherein: still include total valve (9) that admits air, the one end of total valve (9) that admits air is connected in the one end that first switching-over valve (45) was kept away from to admission valve (44) and the one end that second switching-over valve (81) was kept away from to booster valve (84), total valve (9) are connected with control panel (1) electricity, control panel (1) are used for opening and close total valve (9) that admits air.

9. The pressure-resistant water meter detecting device according to claim 1, wherein: a plurality of annular grooves (11) are formed in the surfaces, facing each other, of the first clamping seat (2) and the second clamping seat (3), first elastic rings (12) are fixedly arranged in the annular grooves (11), and parts of the first elastic rings (12) are located outside the annular grooves (11).

10. The pressure-resistant water meter detecting device according to claim 2, wherein: the inner wall of the exhaust hole (5) and the inner wall of the water inlet hole (15) are fixedly provided with supporting rings (14), and one side, facing each other, of each supporting ring (14) is fixedly provided with a second elastic ring (13).