Clamping device for metrological verification of cold water meter

By designing a clamping device for measuring and verifying cold water meters, and utilizing a rotating shaft and magnet to achieve synchronous loading and unloading of water meters, the problem of low verification efficiency in existing technologies has been solved, and the verification efficiency of large batches of water meters has been improved.

CN224088990UActive Publication Date: 2026-04-07JIANGXI ZHONGHENG MEASUREMENT & TESTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-19
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

In the existing technology, the water meter calibration process cannot simultaneously complete the unloading of the calibrated water meter and the loading of the water meter to be calibrated, resulting in low calibration efficiency, and is especially unsuitable for the continuous calibration of large batches of water meters.

Method used

A clamping device for measuring and verifying cold water meters was designed, comprising a worktable assembly, an upper clamping assembly, and a lower clamping assembly. Through the cooperation of a rotating shaft and a magnet, the unloading of the water meter after verification and the loading of the water meter to be verified are realized simultaneously, shortening the time interval between verification operations.

Benefits of technology

It enables simultaneous loading and unloading of water meters, improving calibration efficiency and making it suitable for continuous calibration of large batches of water meters.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a clamping device for metrological verification of a cold water meter, which relates to the technical field of water meter verification, and comprises a workbench assembly, a clamping assembly and a water meter verification assembly, and is characterized in that the workbench assembly is used for limiting a water inlet pipe and a water outlet pipe; the upper clamping assembly is used for being matched with the lower clamping assembly to clamp the cold water meter to be calibrated; the lower clamping assembly comprises a fixed magnet, a rotating shaft, a transposition bottom plate, a movable magnet, a first clamping seat and a second clamping seat; the fixed magnet is fixedly arranged in the middle of the front face of the workbench face, and the rotating shaft is rotationally arranged on the inner side of the fixed magnet through a bearing. The water meter feeding device can synchronously complete the discharging operation of the calibrated water meter and the feeding operation of the water meter to be calibrated, so that the time interval between two times of calibration operation is shortened, the calibration efficiency is effectively improved, and the water meter feeding device is mainly suitable for continuous calibration of large-batch water meters.
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Description

Technical Field

[0001] This utility model relates to the field of water meter calibration technology, and in particular to a clamping device for measuring and calibrating cold water meters. Background Technology

[0002] To ensure the stable operation of water meters, water meter manufacturers or metering departments need to perform performance verification on the water meters. During the verification process, the water meters need to be clamped and limited to ensure their stability.

[0003] In the existing technology, when clamping and limiting the water meter during the water meter calibration process, the water meter is usually placed on the lower clamping seat first, and then the upper clamping seat is moved down by the driving device to cooperate with the lower clamping seat to clamp and fix the water meter.

[0004] While the above method can complete the clamping and limiting operation of the water meter, after the subsequent verification operation is completed, the relevant operators need to remove the verified water meter from the lower clamping seat before they can place the next water meter to be verified. This makes it impossible to complete the synchronous loading and unloading operation of the water meters at the same time, which has a certain impact on the verification efficiency, and is especially unsuitable for the continuous verification of a large number of water meters.

[0005] Therefore, it is necessary to invent a clamping device for measuring and verifying cold water meters to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a clamping device for the metering and verification of cold water meters, which can simultaneously complete the unloading of the verified water meters and the loading of the water meters to be verified, thereby shortening the time interval between the two verification operations and effectively improving the verification efficiency. It is mainly suitable for the continuous verification of a large number of water meters, so as to solve the problem mentioned in the background art that after the verification operation is completed, the relevant operators need to remove the verified water meters from the lower clamping seat before the subsequent water meters to be verified can be placed, and the synchronous loading and unloading of water meters cannot be completed at the same time, which has a certain impact on the verification efficiency, and is especially unsuitable for the continuous verification of a large number of water meters.

[0007] According to one aspect of this disclosure, the following technical solution is provided: a clamping device for metering verification of cold water meters, comprising:

[0008] A workbench assembly, which is used to limit the water inlet pipe and the water outlet pipe;

[0009] The upper clamping assembly is used to cooperate with the lower clamping assembly to clamp the cold water meter to be tested; and

[0010] The lower clamping assembly includes a fixed magnet, a rotating shaft, a transposition base plate, a moving magnet, a first clamping seat, and a second clamping seat.

[0011] The fixed magnet is fixedly installed in the center of the front of the workbench. The rotating shaft is rotatably installed inside the fixed magnet through a bearing. The shifting base plate is fixedly sleeved on the top of the outer side of the rotating shaft and slidably attached to the top of the workbench. There are two moving magnets, which are respectively fixedly installed at the front and rear ends of the shifting base plate. The first clamping seat and the second clamping seat are respectively fixedly installed at the front and rear ends of the top of the shifting base plate.

[0012] According to at least one embodiment of the present disclosure, a clamping device for measuring and verifying cold water meters includes a workbench assembly comprising a workbench surface and a base fixedly disposed at the bottom of the workbench surface.

[0013] According to at least one embodiment of the present disclosure, a clamping device for measuring and verifying cold water meters has inlet and outlet water pipe limiting plates fixedly installed on both sides of the top of the workbench, and the top of the inlet and outlet water pipe limiting plates has a downwardly extending limiting receiving groove.

[0014] According to at least one embodiment of the present disclosure, a clamping device for measuring and verifying cold water meters includes an upper clamping assembly comprising a hydraulic cylinder fixedly disposed at the bottom of a workbench, wherein the output shaft of the hydraulic cylinder extends to the top of the workbench and is fixedly connected to an L-shaped back plate.

[0015] According to at least one embodiment of the present disclosure, a clamping device for measuring and verifying cold water meters has guide rods that slide through the worktable surface fixedly provided on both sides of the bottom of the L-shaped back plate, and clamping plates fixedly provided on both sides of the front of the L-shaped back plate.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] This invention features a lower clamping assembly. Before calibration, a water meter to be calibrated is placed on top of the second clamping seat. The upper clamping assembly then clamps the water meter in conjunction with the second clamping seat. The inlet and outlet pipes are then connected to the water meter, and calibration begins. During calibration, another water meter is placed on top of the first clamping seat. After the water meter on the second clamping seat has been calibrated, the inlet and outlet pipes are disconnected. The first clamping seat is then moved, causing the shifting base plate to rotate around the rotation axis, thus exchanging the positions of the first and second clamping seats. During this process, the calibrated water meters are unloaded, and the water meters to be calibrated are loaded, thus simultaneously completing the loading and unloading operations. Compared to existing technologies, this invention can simultaneously complete the unloading of calibrated water meters and the loading of water meters to be calibrated, thereby shortening the time interval between the two calibration operations and effectively improving calibration efficiency. It is mainly suitable for the continuous calibration of large batches of water meters. Attached Figure Description

[0018] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0019] Figure 1 This is a schematic diagram of the overall structure of a clamping device for measuring and verifying cold water meters according to one embodiment of the present disclosure.

[0020] Figure 2 This is a schematic diagram of the workbench assembly and upper clamping assembly of a clamping device for measuring and verifying cold water meters according to one embodiment of the present disclosure.

[0021] Figure 3 This is a schematic diagram of the lower clamping assembly structure of a clamping device for metering verification of cold water meters according to one embodiment of the present disclosure.

[0022] The specific labels in the attached figures are as follows:

[0023] 1. Workbench assembly; 11. Workbench surface; 12. Base; 13. Inlet / outlet water pipe limiting plate; 14. Limiting and receiving groove;

[0024] 2. Upper clamping assembly; 21. Hydraulic cylinder; 22. L-shaped back plate; 23. Guide rod; 24. Clamping plate;

[0025] 3. Lower clamping assembly; 31. Fixed magnet; 32. Rotating shaft; 33. Transposition base plate; 34. Moving magnet; 35. First clamping seat; 36. Second clamping seat. Detailed Implementation

[0026] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” other components or features would subsequently be positioned “above” said other components or features. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0027] Figure 1 This is a schematic diagram of the overall structure of a clamping device for measuring and verifying cold water meters according to one embodiment of the present disclosure.

[0028] Figure 2 This is a schematic diagram of the workbench assembly 1 and the upper clamping assembly 2 of a clamping device for measuring and verifying cold water meters according to one embodiment of the present disclosure.

[0029] Figure 3 This is a schematic diagram of the lower clamping component 3 of a clamping device for metering verification of cold water meters according to one embodiment of the present disclosure.

[0030] like Figures 1-3 As shown, the clamping device for measuring and verifying cold water meters disclosed herein may include components such as a workbench assembly 1, an upper clamping assembly 2, and a lower clamping assembly 3.

[0031] like Figure 2 As shown in the present disclosure, the workbench assembly 1 includes a workbench surface 11, a base 12 is fixedly provided at the bottom of the workbench surface 11, and inlet and outlet water pipe limiting plates 13 are fixedly provided on both sides of the top of the workbench surface 11. The top of the inlet and outlet water pipe limiting plates 13 is provided with a downwardly extending limiting receiving groove 14.

[0032] Therefore, it is convenient to place the inlet pipe and the outlet pipe inside the two limiting receiving grooves 14. Due to the obstruction of the end flange of the inlet pipe and the end flange of the outlet pipe, the inlet pipe and the outlet pipe cannot be removed from the inside of the limiting receiving groove 14. When it is necessary to connect the inlet pipe and the outlet pipe to the water meter to be calibrated later, the inlet pipe and the outlet pipe can be pulled more conveniently.

[0033] like Figure 2 As shown, in a preferred embodiment, the upper clamping assembly 2 includes a hydraulic cylinder 21 fixedly disposed at the bottom of the worktable 11. The output shaft of the hydraulic cylinder 21 extends to the top of the worktable 11 and is fixedly connected to an L-shaped back plate 22. Guide rods 23 that slide through the worktable 11 are fixedly disposed on both sides of the bottom of the L-shaped back plate 22, and clamping plates 24 are fixedly disposed on both sides of the front of the L-shaped back plate 22.

[0034] Therefore, the hydraulic cylinder 21 drives the L-shaped back plate 22 to descend. When the L-shaped back plate 22 descends, the two guide rods 23 guide and limit it to ensure that the L-shaped back plate 22 descends vertically. During the descent of the L-shaped back plate 22, the two clamping plates 24 continue to descend until they are fastened to the top of the water meter, and then cooperate with the adjacent first clamping seat 35 or second clamping seat 36 to clamp and fix the water meter.

[0035] like Figure 3As shown in this disclosure, the lower clamping assembly 3 includes a fixed magnet 31, a rotating shaft 32, a shifting base plate 33, a moving magnet 34, a first clamping seat 35, and a second clamping seat 36. The fixed magnet 31 is fixedly disposed in the center of the front of the worktable 11. The rotating shaft 32 is rotatably disposed inside the fixed magnet 31 via a bearing. The shifting base plate 33 is fixedly sleeved on the top of the outer side of the rotating shaft 32 and slidably attached to the top of the worktable 11. There are two moving magnets 34, which are respectively fixedly disposed at the front and rear ends of the shifting base plate 33. The first clamping seat 35 and the second clamping seat 36 are respectively fixedly disposed at the front and rear ends of the top of the shifting base plate 33.

[0036] Therefore, before the verification begins, the water meter to be verified is placed on top of the second clamping seat 36. Then, the upper clamping component 2 cooperates with the second clamping seat 36 to clamp the water meter. Then, the inlet pipe and outlet pipe are connected to the water meter, and the verification begins. During the verification process, another water meter is placed on top of the first clamping seat 35. After the water meter on top of the second clamping seat 36 has been verified, the connection between the inlet pipe and outlet pipe is released. Then, the first clamping seat 35 is moved to rotate. The shifting base plate 33 rotates around the rotating shaft 32, thereby exchanging the positions of the first clamping seat 35 and the second clamping seat 36. During this process, the calibrated water meter is unloaded and the water meter to be calibrated is loaded, thus completing the loading and unloading operation of the water meter simultaneously. Compared with the prior art, the unloading of the calibrated water meter and the loading of the water meter to be calibrated can be completed simultaneously, thereby shortening the time interval between the two calibration operations and effectively improving the calibration efficiency. It is mainly suitable for the continuous calibration of a large number of water meters.

[0037] In addition, the fixed magnet 31 and the two moving magnets 34 can help with positioning when the base plate 33 rotates, so that the first clamping seat 35 or the second clamping seat 36 after rotation is accurately located below the clamping plate 24, which facilitates the subsequent descent of the clamping plate 24 to achieve accurate clamping of the water meter.

[0038] It should also be noted that any content not described in detail in this specification is prior art known to those skilled in the art.

[0039] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A clamping device for measuring and verifying cold water meters, characterized in that, include: A workbench assembly, which is used to limit the water inlet pipe and the water outlet pipe; The upper clamping assembly is used to cooperate with the lower clamping assembly to clamp the cold water meter to be tested; as well as The lower clamping assembly includes a fixed magnet, a rotating shaft, a transposition base plate, a moving magnet, a first clamping seat, and a second clamping seat. The fixed magnet is fixedly installed in the center of the front of the workbench. The rotating shaft is rotatably installed inside the fixed magnet through a bearing. The shifting base plate is fixedly sleeved on the top of the outer side of the rotating shaft and slidably attached to the top of the workbench. There are two moving magnets, which are respectively fixedly installed at the front and rear ends of the shifting base plate. The first clamping seat and the second clamping seat are respectively fixedly installed at the front and rear ends of the top of the shifting base plate.

2. The clamping device for measuring and verifying cold water meters according to claim 1, characterized in that: The workbench assembly includes a workbench surface, and a base is fixedly disposed at the bottom of the workbench surface.

3. The clamping device for measuring and verifying cold water meters according to claim 2, characterized in that: Both sides of the top of the workbench are fixedly equipped with inlet and outlet water pipe limiting plates, and the top of the inlet and outlet water pipe limiting plates is provided with a downward extending limiting and receiving groove.

4. The clamping device for measuring and verifying cold water meters according to claim 3, characterized in that: The upper clamping assembly includes a hydraulic cylinder fixedly mounted on the bottom of the worktable, the output shaft of which extends to the top of the worktable and is fixedly connected to an L-shaped back plate.

5. The clamping device for measuring and verifying cold water meters according to claim 4, characterized in that: The bottom two sides of the L-shaped back plate are fixedly provided with guide rods that slide through the workbench surface, and the front two sides of the L-shaped back plate are fixedly provided with clamping plates.