A pump motor test bench pressure gauge calibration device

Abstract

The utility model discloses a kind of pump motor test bench pressure gauge calibration devices, related to pressure gauge calibration technical field, a kind of pump motor test bench pressure gauge calibration device includes workbench, the workbench upper end right side is provided with manual hydraulic pump, the manual hydraulic pump front end is provided with connecting pipe, the connecting pipe other side is provided with flange plate, the flange plate other side is provided with check valve, the check valve other side is provided with first pressure gauge, the first pressure gauge rear end is provided with liquid inlet pipe, the liquid inlet pipe other side is provided with pressure test stick, the pressure test stick is arranged in detection module, the detection module upper end is provided with fixed seat, the fixed seat upper end is provided with support frame, the support frame upper end is provided with T-type wrench, the scheme provides solves the problem of complex detection operation, and large consumption.

Description

Technical Field

[0001] This utility model relates to the field of pressure gauge calibration technology, specifically a pressure gauge calibration device for a pump motor test bench. Background Technology

[0002] Pressure gauge calibration devices are key equipment used to ensure the accuracy of pressure gauge measurements. Their main function is to determine the error of the gauge being calibrated by comparing it with a standard pressure gauge and then make adjustments to ensure that the measurement results meet the specified accuracy level.

[0003] A pressure gauge calibration device, as disclosed in announcement number CN201920982892.8, includes a base plate. Two thick tubes are fixedly connected to the top of the outer surface of the base plate. Support bars one and two are fixedly connected to the outer surfaces of each of the two thick tubes. Threaded rods are movably embedded inside each of the two support bars two. One end of each threaded rod is rotatably connected to a movable semicircular block via a bearing. In use, a water pump is started by an external power source, and water is extracted from the water tank through a pumping pipe. The extracted water is then transported to the interior of the thick tubes through an output pipe. The thick tubes enter the interior of the insertion tube, and the water pressure is detected by the pressure gauge body. The condition of the pressure gauge body can be judged by the water pressure display on the pressure gauge body.

[0004] The aforementioned device is complex to operate and consumes a lot of energy during use; therefore, we propose a pressure gauge calibration device for a pump motor test bench to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a pressure gauge calibration device for a pump motor test bench, so as to solve the problems of complex and energy-intensive existing testing operations mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure gauge calibration device for a pump motor test bench, comprising a workbench, a manual hydraulic pump disposed on the right side of the upper end of the workbench, a connecting pipe disposed at the front end of the manual hydraulic pump, a flange disposed on the other side of the connecting pipe, a one-way valve disposed on the other side of the flange, a first pressure gauge disposed on the other side of the one-way valve, an inlet pipe disposed at the rear end of the first pressure gauge, a pressure test rod disposed on the other side of the inlet pipe, the pressure test rod being disposed within a detection module, a fixed base disposed at the upper end of the detection module, a support frame disposed at the upper end of the fixed base, and a T-shaped wrench disposed at the upper end of the support frame.

[0007] Preferably, the manual hydraulic pump includes an oil tank, a support block, an oil filler port, an air vent, a movable rod, a rotating structure, and a pump body. The oil tank is located on the upper part of the workbench, the pump body is located at the front end of the oil tank, the rotating structure is located at the front end of the pump body, the movable rod is located at the rear end of the rotating structure, the oil filler port and the air vent are located at the upper end of the oil tank, the support block is located at the lower end of the movable rod, and the support block is located on the upper part of the oil tank.

[0008] Preferably, the connecting pipe is provided with a pipe support.

[0009] Preferably, the one-way valve is provided with a valve handle at its upper end and a support base at its lower end.

[0010] Preferably, the front end of the movable rod is provided with a rubber sleeve.

[0011] Preferably, the pressure test rod includes a rod body, a liquid inlet, a first pipe, a second pipe, a liquid outlet, and a connector. The rod body is disposed within the detection module. The front end of the rod body has a liquid inlet connected to a liquid inlet pipe. The rod body has a first pipe connected to the liquid inlet pipe. A second pipe is provided at the lower end of the first pipe, and a liquid outlet is provided at the lower end of the second pipe. The upper end of the rod body has a connector, and the rod body is connected to a T-type wrench via the connector.

[0012] Preferably, a pressure relief port is provided on the lower left side of the detection module, and a second pressure gauge is provided on the lower front end of the detection module.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) By pressing the movable rod, the oil flows into the first pipeline inside the pressure test rod through the one-way valve and the inlet. When the oil reaches the first pipeline of the pressure test rod through the one-way valve, the flow diameter of the liquid decreases and the oil flows down from a high position, which can increase the pressure of the oil reaching the bottom of the rod. After the oil reaches the second pipeline at the bottom of the rod, the diameter of the pipeline changes again, which can increase the pressure reaching the pressure gauge pipeline again. At this time, the reading of the second pressure gauge is compared with the pressure of the first pressure gauge, and the pressure gauge can be calibrated, thereby solving the problem of complicated detection operation.

[0015] (2) By manually adjusting the oil flow into the pressure test bar using a manual hydraulic pump and a check valve, and then using the detection module to perform pressure testing, only a small amount of oil needs to be entered for pressure testing, thus reducing consumption and solving the problem of high testing consumption. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a front view of the present invention;

[0018] Figure 3 This is a side view of the present invention;

[0019] Figure 4 This is a cross-sectional view of the pressure detection rod of this utility model;

[0020] In the diagram: 1. Workbench; 2. Manual hydraulic pump; 21. Oil tank; 22. Support block; 23. Filler port; 24. Vent port; 25. Movable rod; 26. Rubber sleeve; 27. Rotating structure; 28. Pump body; 3. Fixed base; 4. Pressure test rod; 41. Rod body; 42. Liquid inlet; 43. First pipeline; 44. Second pipeline; 45. Liquid outlet; 46. Connector; 5. Support frame; 6. T-wrench; 7. Connecting pipe; 8. Pipe support; 9. Check valve; 10. Support base; 11. Flange; 12. Valve handle; 13. Detection module; 14. Pressure relief port; 15. Second pressure gauge; 16. First pressure gauge. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-4This utility model provides an embodiment of a pump motor test bench pressure gauge calibration device, comprising a workbench 1, a manual hydraulic pump 2 mounted on the upper right side of the workbench 1, a connecting pipe 7 mounted at the front end of the manual hydraulic pump 2, a flange 11 mounted on the other side of the connecting pipe 7, a one-way valve 9 mounted on the other side of the flange 11, a first pressure gauge 16 mounted on the other side of the one-way valve 9, an inlet pipe mounted at the rear end of the first pressure gauge 16, a pressure test rod 4 mounted on the other side of the inlet pipe, the pressure test rod 4 being housed within a detection module 13, a fixed base 3 mounted on the upper end of the detection module 13, a support frame 5 mounted on the upper end of the fixed base 3, and a T-shaped wrench 6 mounted on the upper end of the support frame 5. By pressing the movable rod 25, oil flows through the one-way valve 9 and into the pressure test rod via the inlet 42. In the first pipe 43 within the pressure test rod 4, the oil flows through the check valve 9 to the first pipe 43. The flow diameter of the liquid decreases and the oil flows down from a higher position, which increases the pressure of the oil reaching the bottom of the rod 41. After the oil reaches the second pipe 44 at the bottom of the rod 41, the diameter of the pipe changes again, which can further increase the pressure reaching the pressure gauge pipe. At this time, the reading of the second pressure gauge 15 is compared with the pressure of the first pressure gauge 16, and the pressure gauge can be calibrated. This solves the problem of complex testing operations. By manually adjusting the oil entering the pressure test rod 4 with the manual hydraulic pump 2 and the check valve 9, the pressure test is carried out with the detection module 13. The pressure test only requires a small amount of oil to enter, thereby reducing consumption and solving the problem of high testing consumption.

[0023] Please see Figure 1 The manual hydraulic pump 2 includes an oil tank 21, a support block 22, an oil filling port 23, an air vent 24, a movable rod 25, a rotating structure 27, and a pump body 28. The oil tank 21 is located on the upper end of the workbench 1. The pump body 28 is located at the front end of the oil tank 21. The rotating structure 27 is located at the front end of the pump body 28. The movable rod 25 is located at the rear end of the rotating structure 27. The oil filling port 23 and the air vent 24 are located at the upper end of the oil tank 21. The support block 22 is located at the lower end of the movable rod 25. The support block 22 is located on the upper end of the oil tank 21 and serves to manually adjust the oil entering the pressure test bar 4.

[0024] Please see Figure 2 A pipe support 8 is provided on the connecting pipe 7 to support the connecting pipe 7.

[0025] Please see Figure 3 The one-way valve 9 is equipped with a valve handle 12 at the upper end and a support seat 10 at the lower end for easy adjustment of the one-way valve 9.

[0026] Please see Figure 3 The front end of the movable rod 25 is equipped with a rubber sleeve 26, which serves to prevent slipping.

[0027] Please see Figure 4The pressure test rod 4 includes a rod body 41, an inlet 42, a first pipe 43, a second pipe 44, an outlet 45, and a connector 46. The rod body 41 is installed inside the detection module 13. The inlet 42 is provided at the front end of the rod body 41 and is connected to the inlet pipe. The first pipe 43 is provided inside the rod body 41 and is connected to the inlet 42. The second pipe 44 is provided at the lower end of the first pipe 43 and the outlet 45 is provided at the lower end of the second pipe 44. The connector 46 is provided at the upper end of the rod body 41 and is connected to the T-type wrench 6 through the connector 46.

[0028] Please see Figure 3 The detection module 13 has a pressure relief port 14 on the lower left side and a second pressure gauge 15 on the lower front end of the detection module 13, which works with the pressure test rod 4 to perform pressure gauge detection.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pressure gauge calibration device for a pump motor test bench, comprising a workbench (1), characterized in that: A manual hydraulic pump (2) is provided on the upper right side of the workbench (1). A connecting pipe (7) is provided at the front end of the manual hydraulic pump (2). A flange (11) is provided on the other side of the connecting pipe (7). A one-way valve (9) is provided on the other side of the flange (11). A first pressure gauge (16) is provided on the other side of the one-way valve (9). An inlet pipe is provided at the rear end of the first pressure gauge (16). A pressure test rod (4) is provided on the other side of the inlet pipe. The pressure test rod (4) is located inside the detection module (13). A fixed seat (3) is provided at the upper end of the detection module (13). A support frame (5) is provided at the upper end of the fixed seat (3). A T-shaped wrench (6) is provided at the upper end of the support frame (5).

2. The pressure gauge calibration device for a pump motor test bench according to claim 1, characterized in that: The manual hydraulic pump (2) includes an oil tank (21), a support block (22), an oil filling port (23), an air vent (24), a movable rod (25), a rotating structure (27), and a pump body (28). The oil tank (21) is located on the upper end of the workbench (1). The pump body (28) is located at the front end of the oil tank (21). The rotating structure (27) is located at the front end of the pump body (28). The movable rod (25) is located at the rear end of the rotating structure (27). The oil filling port (23) and the air vent (24) are located at the upper end of the oil tank (21). The support block (22) is located at the lower end of the movable rod (25). The support block (22) is located at the upper end of the oil tank (21).

3. The pressure gauge calibration device for a pump motor test bench according to claim 2, characterized in that: A pipe support (8) is provided on the connecting pipe (7).

4. The pressure gauge calibration device for a pump motor test bench according to claim 3, characterized in that: The one-way valve (9) is provided with a valve handle (12) at the upper end and a support seat (10) at the lower end.

5. The pressure gauge calibration device for a pump motor test bench according to claim 4, characterized in that: A rubber sleeve (26) is provided at the front end of the movable rod (25).

6. The pressure gauge calibration device for a pump motor test bench according to claim 5, characterized in that: The pressure test rod (4) includes a rod body (41), an inlet (42), a first pipe (43), a second pipe (44), an outlet (45), and a connector (46). The rod body (41) is located inside the detection module (13). The inlet (42) is located at the front end of the rod body (41) and is connected to the inlet pipe. The first pipe (43) is located inside the rod body (41) and is connected to the inlet (42). The second pipe (44) is located at the lower end of the first pipe (43) and is located at the lower end of the second pipe (44) and is located at the outlet (45). The connector (46) is located at the upper end of the rod body (41) and is connected to the T-wrench (6) through the connector (46).

7. The pressure gauge calibration device for a pump motor test bench according to claim 6, characterized in that: The detection module (13) has a pressure relief port (14) on the lower left side and a second pressure gauge (15) on the lower front end of the detection module (13).

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