Piston water meter measurement accuracy detection platform

Abstract

A piston type water meter measurement precision detection platform relates to the technical field of water meter measurement detection platform, including detection frame, the front side of detection frame is provided with detection groove, a plurality of water meters to be detected are placed in the bottom wall of detection groove, a CCD camera horizontally movable is arranged in the detection groove, the CCD camera is located above the water meter to be detected, a driving part for driving the horizontal movement of the CCD camera is further arranged in the detection groove, the driving part includes a screw rod, the screw rod is rotationally arranged in the detection groove along the horizontal direction, a nut is threadedly connected to the screw rod, and a motor is arranged on one side of the detection frame; the utility model can make the CCD camera move horizontally by opening the driving part and the motor, so that the CCD camera can capture the initial and final readings of the plurality of water meters to be detected below the horizontal direction, which not only improves the detection efficiency, but also reduces the use cost and maintenance and repair cost of the single CCD camera.

Description

Technical Field

[0001] This utility model relates to the technical field of water meter metering testing stations, specifically a piston-type water meter metering accuracy testing station. Background Technology

[0002] The piston water meter metering accuracy testing bench is a specialized metering performance testing device designed for piston water meters (a type of volumetric water meter with piston reciprocating motion as the metering core). Its core function is to accurately verify key indicators of piston water meters, such as flow measurement error, repeatability, and stability, by simulating actual working conditions.

[0003] To improve testing efficiency, existing piston-type water meter accuracy testing stations typically set up multiple water meters on the testing platform, and then place a compatible CCD camera above each of the multiple water meters to capture the start and end readings of the water meters. However, the setup of multiple CCD cameras inevitably leads to high operating costs and troublesome maintenance.

[0004] To address this issue, we designed a piston-type water meter metering accuracy testing platform. Summary of the Invention

[0005] The purpose of this invention is to provide a piston-type water meter metering accuracy testing station to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a piston-type water meter metering accuracy testing platform, including a testing frame. A testing groove is opened on the front side of the testing frame. Multiple water meters to be tested are placed on the bottom wall of the testing groove. A horizontally movable CCD camera is set in the testing groove. The CCD camera is located above the water meters to be tested. A driving component for driving the horizontal movement of the CCD camera is also set in the testing groove.

[0007] Furthermore, the driving component includes a screw, which is rotatably disposed in the detection groove in a horizontal direction. A nut is threaded onto the screw. A motor is disposed on one side of the detection frame. The drive shaft of the motor is connected to one end of the screw. A connector is disposed at the bottom of the nut. A mounting bracket is disposed at the bottom end of the connector. The CCD camera is disposed at the bottom of the mounting bracket.

[0008] Furthermore, it also includes a limiting component, which includes a guide rod. The guide rod is fixedly installed in the detection groove in a horizontal direction. The nut has a sliding hole adapted to the guide rod, and the nut is slidably sleeved on the guide rod through the sliding hole.

[0009] Furthermore, a spring is provided inside the mounting bracket, and a T-shaped iron block is provided at the other end of the spring. The T-shaped iron block is slidably disposed inside the mounting bracket, and the bottom end of the T-shaped iron block slides through the mounting bracket and is fixedly connected to the CCD camera. An electromagnet is provided at the end of the mounting bracket away from the spring, and the electromagnet is magnetically connected to the T-shaped iron block.

[0010] Furthermore, the mounting bracket has an installation cavity and a sliding opening at its interior and bottom, respectively. The installation cavity and the sliding opening are connected. The spring and the electromagnet are fixedly installed on the two side walls inside the installation cavity, and the bottom end of the T-shaped iron block is slidably inserted into the sliding opening.

[0011] Furthermore, a limiting rod is fixedly installed in the horizontal direction inside the mounting cavity, and a fixing hole adapted to the limiting rod is opened in the T-shaped iron block. The T-shaped iron block is slidably sleeved on the limiting rod through the fixing hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are: by activating the drive unit and motor, the CCD camera can move horizontally, enabling the CCD camera to capture the start and end readings of multiple water meters to be tested in the horizontal direction, which not only improves the detection efficiency, but also reduces the cost of use and maintenance by setting up a single CCD camera.

[0013] Compared with the prior art, the beneficial effects of this utility model are: by energizing the electromagnet, the electromagnet can attract the T-shaped iron block, which in turn stretches the spring along the direction set by the limiting rod, allowing the CCD camera to move backward, thus enabling the detection of multiple water meters to be tested on the rear side, thereby further improving the detection efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention viewed from the outside. Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below. Figure 3 This is a three-dimensional structural schematic diagram of the side interior half-section of the mounting bracket of this utility model; Figure 4 This utility model Figure 2 Enlarged view of point A in the middle.

[0015] In the diagram: 1. Testing frame; 2. Testing slot; 3. Water meter to be tested; 4. Screw; 5. Nut; 6. Motor; 7. Connector; 8. Mounting frame; 9. CCD camera; 10. Guide rod; 11. Spring; 12. T-shaped iron block; 13. Electromagnet; 14. Mounting cavity; 15. Sliding mouth; 16. Limiting rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 This utility model provides a technical solution: a piston-type water meter metering accuracy testing platform, including a testing frame 1, a testing groove 2 is opened on the front side of the testing frame 1, a plurality of water meters 3 to be tested are placed on the bottom wall of the testing groove 2, a horizontally movable CCD camera 9 is set in the testing groove 2, the CCD camera 9 is located above the water meters 3 to be tested, and a driving component for driving the horizontal movement of the CCD camera 9 is also set in the testing groove 2. The driving component includes a screw 4, which is rotatably mounted in the detection groove 2 in a horizontal direction. A nut 5 is threaded onto the screw 4. A motor 6 is mounted on one side of the detection frame 1. The drive shaft of the motor 6 is connected to one end of the screw 4. A connector 7 is mounted at the bottom of the nut 5. A mounting bracket 8 is mounted at the bottom of the connector 7. A CCD camera 9 is mounted at the bottom of the mounting bracket 8.

[0018] In practice, turning on the CCD camera 9 and the motor 6 will cause the drive shaft of the motor 6 to drive the screw 4 to rotate, which will cause the nut 5 to drive the connector 7, the mounting bracket 8 and the CCD camera 9 to move horizontally. This will allow the CCD camera 9 to capture the start and end readings of multiple water meters 3 to be tested in the horizontal direction. This not only improves the detection efficiency, but also reduces the cost of use and maintenance by setting up a single CCD camera 9.

[0019] Furthermore, it should be noted that for the positioning of the water meter 3 to be tested, a positioning component can be set on the bottom wall of the testing tank 2, which typically includes clamping plates and a cylinder. The movement of the cylinder can drive the two relatively movable clamping plates to move closer to each other, thereby clamping and positioning the water meter 3 to be tested, ensuring stability during testing. In addition, when testing the water meter 3 to be tested, a high-precision standard volume device (usually a piston-type standard measuring instrument) needs to be set on the water meter 3 to be tested in series to measure the same volume of water flow. The measurement error is calculated by comparing the difference between the two readings. Since the testing of the water meter 3 to be tested is existing technology and is not a problem that needs to be solved in the background technology of this specification, it will not be explained in detail.

[0020] See Figure 1-4It also includes a limiting component, which includes a guide rod 10. The guide rod 10 is fixedly installed in the detection groove 2 in a horizontal direction. The nut 5 has a sliding hole adapted to the guide rod 10. The nut 5 is slidably sleeved on the guide rod 10 through the sliding hole. This allows the nut 5 to slide only along the direction set by the guide rod 10, avoiding the problem of the nut 5 rotating with the screw 4.

[0021] See Figure 1-4 A spring 11 is installed inside the mounting bracket 8, and a T-shaped iron block 12 is installed at the other end of the spring 11. The T-shaped iron block 12 is slidably installed inside the mounting bracket 8, and the bottom end of the T-shaped iron block 12 slides through the mounting bracket 8 and is fixedly connected to the CCD camera 9. An electromagnet 13 is installed at the end of the mounting bracket 8 away from the spring 11. The electromagnet 13 is magnetically connected to the T-shaped iron block 12. The mounting bracket 8 has a mounting cavity 14 and a sliding opening 15 at its interior and bottom, respectively. The mounting cavity 14 and the sliding opening 15 are connected. The spring 11 and the electromagnet 13 are fixedly installed on the two side walls inside the mounting cavity 14, and the bottom end of the T-shaped iron block 12 is slidably inserted into the sliding opening 15.

[0022] In specific implementation, based on the above implementation, by energizing the electromagnet 13, the electromagnet 13 can attract the T-shaped iron block 12, causing the T-shaped iron block 12 to stretch the spring 11 along the direction set by the limit rod 16, so that the CCD camera 9 can move backward, and can detect multiple water meters 3 to be tested on the rear side, thereby further improving the detection efficiency.

[0023] See Figure 1-4 A limiting rod 16 is also fixedly installed horizontally inside the mounting cavity 14. A fixing hole adapted to the limiting rod 16 is provided inside the T-shaped iron block 12. The T-shaped iron block 12 is slidably sleeved onto the limiting rod 16 through the fixing hole. This limits the direction of movement of the T-shaped iron block 12, ensuring its stability during movement.

[0024] Working principle: Before use, all electrical appliances inside and outside the testing station need to be connected to an external power source, or a battery pack needs to be installed in an area outside the testing frame 1 that does not obstruct other components. Then, the battery pack is connected to the electrical appliances through wiring. It is also necessary to avoid the wiring from getting tangled due to the movement of the components. Wiring needs to be buried and planned and organized to provide power to the electrical appliances, thereby ensuring their normal operation and switching. Since connecting the electrical appliances to an external power source or setting up a battery pack for power supply are existing technologies and are not problems that need to be solved in the background technology of this manual, they will not be explained in detail.

[0025] When in use, first turn on the CCD camera 9 and the motor 6. The drive shaft of the motor 6 will drive the screw 4 to rotate, which will cause the nut 5 to drive the connector 7, the mounting bracket 8 and the CCD camera 9 to move horizontally. This allows the CCD camera 9 to capture the start and end readings of multiple water meters 3 to be tested in the horizontal direction. This not only improves the detection efficiency, but also reduces the cost of use and maintenance by setting up a single CCD camera 9.

[0026] During the above operation, by energizing the electromagnet 13, the electromagnet 13 can attract the T-shaped iron block 12, causing the T-shaped iron block 12 to stretch the spring 11 along the direction set by the limit rod 16, so that the CCD camera 9 can move backward, and can detect multiple water meters 3 to be tested on the rear side, thereby further improving the detection efficiency.

Claims

1. A piston-type water meter metering accuracy testing stand, comprising a testing frame (1), characterized in that, The front side of the testing frame (1) is provided with a testing slot (2). Multiple water meters (3) to be tested are placed on the bottom wall of the testing slot (2). A CCD camera (9) that can move horizontally is provided in the testing slot (2). The CCD camera (9) is located above the water meters (3) to be tested. A driving component for driving the CCD camera (9) to move horizontally is also provided in the testing slot (2).

2. The piston-type water meter metering accuracy testing platform as described in claim 1, characterized in that: The driving component includes a screw (4), which is rotatably disposed in the detection groove (2) in the horizontal direction. A nut (5) is threaded onto the screw (4). A motor (6) is disposed on one side of the detection frame (1). The drive shaft of the motor (6) is connected to one end of the screw (4). A connector (7) is disposed at the bottom of the nut (5). A mounting bracket (8) is disposed at the bottom end of the connector (7). The CCD camera (9) is disposed at the bottom of the mounting bracket (8).

3. The piston-type water meter metering accuracy testing stand as described in claim 2, characterized in that: It also includes a limiting component, which includes a guide rod (10), which is fixedly installed in the detection groove (2) in the horizontal direction. The nut (5) has a sliding hole that matches the guide rod (10), and the nut (5) is slidably sleeved on the guide rod (10) through the sliding hole.

4. The piston-type water meter metering accuracy testing stand as described in claim 3, characterized in that: A spring (11) is provided inside the mounting bracket (8), and a T-shaped iron block (12) is provided at the other end of the spring (11). The T-shaped iron block (12) is slidably disposed inside the mounting bracket (8). The bottom end of the T-shaped iron block (12) slides through the mounting bracket (8) and is fixedly connected to the CCD camera (9). An electromagnet (13) is provided at the end of the mounting bracket (8) away from the spring (11). The electromagnet (13) and the T-shaped iron block (12) are magnetically connected.

5. The piston-type water meter metering accuracy testing stand as described in claim 4, characterized in that: The mounting bracket (8) has an installation cavity (14) and a sliding opening (15) at its interior and bottom, respectively. The installation cavity (14) and the sliding opening (15) are connected. The spring (11) and the electromagnet (13) are fixedly installed on the two side walls inside the installation cavity (14), and the bottom end of the T-shaped iron block (12) is slidably inserted into the sliding opening (15).

6. The piston-type water meter metering accuracy testing stand as described in claim 5, characterized in that: A limiting rod (16) is also fixedly installed in the horizontal direction inside the mounting cavity (14). A fixing hole adapted to the limiting rod (16) is opened in the T-shaped iron block (12). The T-shaped iron block (12) is slidably sleeved on the limiting rod (16) through the fixing hole.

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