Water pump sealing performance detection device

Abstract

The utility model belongs to the technical field of water pump leakproofness detection, and particularly relates to a water pump leakproofness detection device which comprises a water tank. A supporting frame is fixedly connected to one side of the water tank, a pneumatic cylinder is installed on the supporting frame, a pneumatic rod is assembled at the acting end of the pneumatic cylinder, a sealing cover plate is fixedly connected to the bottom end of the pneumatic rod, an air outlet hole is formed in the sealing cover plate, a cavity sleeve is fixedly connected to an end opening of the air outlet hole, and a piston is arranged in the cavity sleeve. A movable rod is assembled on the piston, the bottom end of the movable rod is arranged in the air outlet hole, a first electrode plate is fixedly connected to the top end of the movable rod, and a second electrode plate is fixedly connected to the inner wall of the top end of the cavity sleeve; when the water pump is subjected to sealing detection, the water pump is in a completely sealed state, and under the joint cooperation of the first electrode plate, the second electrode plate and the warning lamp, the sealing performance of the water pump can be accurately detected, so that the detection effect of the sealing performance of the water pump is improved.

Description

Technical Field

[0001] This utility model relates to the field of water pump sealing performance testing technology, specifically a water pump sealing performance testing device. Background Technology

[0002] A water pump is a machine that transports or pressurizes liquids. It is mainly used to transport water, oil, acid and alkali solutions, suspensions and liquid metals, etc. After the water pump is manufactured, a sealing test device is needed to test the sealing performance of the water pump.

[0003] Existing water pump sealing testing devices generally consist of a water tank, a placement platform, and a guide mechanism. When testing the sealing of a water pump, the pump to be tested is first placed on the placement platform. Then, the platform is moved vertically downward by the drive mechanism, causing the water pump to also move vertically downward until it is submerged in the water source. If air bubbles are generated in the water, it indicates that the water pump is leaking. Conversely, if no air bubbles are generated, the water pump is well-sealed. Thus, the presence or absence of air bubbles in the water can be used to determine whether the water pump is leaking.

[0004] Existing water pump sealing testing devices do not ensure that the water pump under test is completely sealed during the sealing test, and can only determine whether there is leakage by visual observation, thus the accuracy is not high. Therefore, a water pump sealing testing device is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems raised in the background of the above-mentioned technology, this utility model proposes a water pump sealing performance testing device.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A water pump sealing performance testing device of this utility model includes a water tank; a support frame is fixedly connected to one side of the water tank, a pneumatic cylinder is installed on the support frame, a pneumatic rod is assembled at the working end of the pneumatic cylinder, a sealing cover plate is fixedly connected to the bottom end of the pneumatic rod, an air outlet is opened on the sealing cover plate, a hollow sleeve is fixedly connected to the port of the air outlet, a piston is arranged inside the hollow sleeve, a movable rod is assembled on the piston, the bottom end of the movable rod is located in the air outlet, a first electrode plate is fixedly connected to the top end of the movable rod, a second electrode plate is fixedly connected to the inner wall of the top end of the hollow sleeve, a warning light is assembled at the top of the hollow sleeve, the first electrode plate, the second electrode plate and the warning light are electrically connected, a placement frame is installed on the sealing cover plate, a water pump body is arranged on the placement frame, a discharge pipe is connected to the output port of the water pump body, and the water pump body... The inlet is connected to an air inlet pipe, and the other end of the air inlet pipe passes through a sealing cover plate. When the water pump is tested for sealing, the pneumatic cylinder causes the pneumatic rod to move the sealing cover plate vertically downward, thereby covering the port of the water tank and sealing the water tank. This completely seals the water pump body inside the water tank, putting the water pump body in a state of only intake and no exhaust. If the water pump body leaks air, the gas in the water tank will enter the cavity sleeve through the air outlet, which will push the piston vertically upward, causing the movable rod to move the first electrode plate upward as well. When the first electrode plate contacts the second electrode plate, the warning light will sound an alarm, indicating that the water pump has an air leak. Conversely, it indicates that the water pump is well sealed. By keeping the water pump in a completely sealed state, and with the cooperation of the first electrode plate, the second electrode plate, and the warning light, the sealing performance of the water pump can be accurately tested, thereby improving the testing effect of the water pump sealing performance.

[0007] Preferably, the sealing cover plate has a first screw hole, and a first threaded rod is threaded into the first screw hole. A sealing rubber gasket is fixed to the bottom end of the first threaded rod, and a first rotating cap is fixed to the top end of the first threaded rod. A short plate is fixed to the placement frame, and a sealing rubber washer is fixed to the short plate, with the sealing rubber washer fitted at the port of the air inlet pipe. The placement frame has a second screw hole, and a second threaded rod is threaded into the second screw hole. A push plate is fixed to one end of the second threaded rod, and a second rotating cap is fixed to the other end of the second threaded rod. This design is used when the water pump... Before performing a sealing test, the connection between the outlet pipe and the inlet pipe needs to be sealed. When sealing the outlet pipe, rotate the first rotating cap to move the first threaded rod vertically downwards, until it contacts the outlet pipe, thus sealing the outlet pipe. When sealing the connection of the inlet pipe, rotate the second rotating cap to move the second threaded rod towards the pump body 7. With the cooperation of the sealing rubber gasket, the connection of the inlet pipe can be sealed, facilitating accurate testing of the pump's sealing performance.

[0008] Preferably, a drain hole is provided at the bottom of one side of the water tank, and a drain pipe is fixedly connected to the port of the drain hole. When using the device, the water in the water tank 1 can be drained by setting up the drain pipe.

[0009] The advantages of this utility model are:

[0010] 1. In the process of testing the sealing of a water pump, this utility model uses a pneumatic cylinder to move a pneumatic rod vertically downwards to cover the port of the water tank, thus sealing the water tank and completely sealing the water pump body inside. If the water pump body leaks air, the gas in the water tank will enter the cavity sleeve through the vent hole, which will then push the piston vertically upwards. This will cause the movable rod to move the first electrode plate upwards as well. When the first electrode plate contacts the second electrode plate, the warning light will sound an alarm, indicating that the water pump has an air leak. Conversely, if the first electrode plate does not contact the second electrode plate, it indicates that the water pump has a good seal. By keeping the water pump in a completely sealed state and with the cooperation of the first electrode plate, the second electrode plate, and the warning light, the sealing performance of the water pump can be accurately tested, thereby improving the testing effect of the water pump's sealing performance.

[0011] 2. Before performing a sealing test on the water pump, this utility model requires sealing the connection between the outlet pipe and the inlet pipe. When sealing the outlet pipe, the first rotating cap is rotated, causing the first threaded rod to move the sealing rubber gasket vertically downward until it contacts the outlet pipe, thus sealing the outlet pipe. When sealing the connection of the inlet pipe, the second rotating cap is rotated, causing the second threaded rod to move the push plate towards the water pump body 7. With the cooperation of the sealing rubber gasket, the connection of the inlet pipe can be sealed, facilitating accurate testing of the water pump's sealing performance. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall front-view three-dimensional structure;

[0014] Figure 2 This is a schematic diagram of the overall left-side three-dimensional structure;

[0015] Figure 3 A cross-sectional three-dimensional structural diagram of the hollow sleeve;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the shelf assembly.

[0017] In the diagram: 1. Water tank; 2. Support frame; 3. Pneumatic cylinder; 4. Pneumatic rod; 5. Sealing cover plate; 6. Placement rack; 7. Water pump body; 8. Discharge pipe; 9. Air inlet pipe; 10. Short plate; 11. Sealing rubber gasket; 12. First threaded rod; 13. Sealing rubber pad; 14. First rotating cap; 15. Second threaded rod; 16. Push plate; 17. Second rotating cap; 18. Air outlet; 19. Cavity sleeve; 20. Piston; 21. Movable rod; 22. First electrode plate; 23. Second electrode plate; 24. Warning light; 25. Drain pipe. Detailed Implementation

[0018] 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 scope of protection of the present utility model.

[0019] Please see Figure 1-3 As shown, a water pump sealing performance testing device includes a water tank 1; a support frame 2 is fixedly connected to one side of the water tank 1, a pneumatic cylinder 3 is mounted on the support frame 2, a pneumatic rod 4 is mounted on the actuating end of the pneumatic cylinder 3, a sealing cover plate 5 is fixedly connected to the bottom end of the pneumatic rod 4, an air outlet 18 is provided on the sealing cover plate 5, a hollow sleeve 19 is fixedly connected to the port of the air outlet 18, a piston 20 is provided inside the hollow sleeve 19, a movable rod 21 is mounted on the piston 20, and the bottom end of the movable rod 21 is located inside the air outlet 18. A first electrode plate 22 is fixedly connected to the top of the moving rod 21, and a second electrode plate 23 is fixedly connected to the inner wall of the top of the cavity sleeve 19. A warning light 24 is installed on the top of the cavity sleeve 19. The first electrode plate 22, the second electrode plate 23, and the warning light 24 are electrically connected. A placement rack 6 is installed on the sealing cover plate 5, and a water pump body 7 is installed on the placement rack 6. The output port of the water pump body 7 is connected to a discharge pipe 8, and the input port of the water pump body 7 is connected to an air inlet pipe 9, with the other end of the air inlet pipe 9 passing through the seal. Cover plate 5 is installed; when the water pump is tested for sealing, the pneumatic cylinder 3 is activated, causing the pneumatic rod 4 to move the sealing cover plate 5 vertically downward until the sealing cover plate 5 covers the port of the water tank 1. The pneumatic cylinder 3 then stops operating, thus sealing the water tank 1 and completely sealing the water pump body 7 inside the water tank 1. This puts the water pump body 7 in a state where it only takes in air and does not exhaust air. If the water pump body 7 leaks air, the gas in the water tank 1 will enter the cavity sleeve 19 through the air outlet 18, thereby pushing the piston 20 to move vertically upward. This causes the movable rod 21 to move the first electrode plate 22 upward as well. When the first electrode plate 22 contacts the second electrode plate 23, the warning light 24 sounds an alarm, indicating that the water pump has a leak. Conversely, if the first electrode plate 22 does not contact the second electrode plate 23, it indicates that the water pump has a good seal. By keeping the water pump in a completely sealed state and with the cooperation of the first electrode plate 22, the second electrode plate 23, and the warning light 24, the water pump's sealing performance can be accurately tested, thereby improving the testing effect of the water pump's sealing performance.

[0020] Please see Figure 4As shown, the sealing cover plate 5 has a first screw hole, and a first threaded rod 12 is threaded into the first screw hole. A sealing rubber gasket 13 is fixed to the bottom end of the first threaded rod 12, and a first rotating cap 14 is fixed to the top end of the first threaded rod 12. A short plate 10 is fixed to the placement frame 6, and a sealing rubber gasket 11 is fixed to the short plate 10. The sealing rubber gasket 11 is fitted at the port of the air inlet pipe 9. The placement frame 6 has a second screw hole, and a second threaded rod 15 is threaded into the second screw hole. A push plate 16 is fixed to one end of the second threaded rod 15, and a second rotating cap 17 is fixed to the other end of the second threaded rod 15. Before performing a sealing test on the water pump, it is necessary to... First, seal the connection between the outlet pipe 8 and the inlet pipe 9. When sealing the outlet pipe 8, rotate the first rotating cap 14 so that the first threaded rod 12 drives the sealing rubber gasket 13 to move vertically downward until it contacts the outlet pipe 8. Stop rotating the first rotating cap 14 to seal the outlet pipe 8. When sealing the connection of the inlet pipe 9, rotate the second rotating cap 17 so that the second threaded rod 15 drives the push plate 16 to move towards the pump body 7. With the cooperation of the sealing rubber gasket 11, the connection of the inlet pipe 9 can be sealed, which facilitates the subsequent accurate testing of the pump's sealing performance.

[0021] Please see Figure 2 As shown, a drain hole is provided at the bottom of one side of the water tank 1, and a drain pipe 25 is fixedly connected to the port of the drain hole; when using the device, the drain pipe 25 facilitates the drainage of water from the water tank 1.

[0022] Working principle: Existing water pump sealing testing devices do not ensure the pump is completely sealed during sealing tests and rely solely on visual inspection to determine leakage, resulting in low accuracy. Therefore, this invention addresses these issues by proposing a new water pump sealing testing device. Before testing, the connection between the outlet pipe 8 and the inlet pipe 9 must be sealed. To seal the outlet pipe 8, the first rotating cap 14 is rotated, causing the first threaded rod 12 to move the sealing rubber pad 13 vertically downwards until it contacts the outlet pipe 8. Rotation of the first rotating cap 14 is then stopped, sealing the outlet pipe 8. To seal the inlet pipe 9, the second rotating cap 17 is rotated, causing the second threaded rod 15 to move the push plate 16 towards the pump body 7. With the cooperation of the sealing rubber gasket 11, the connection of the inlet pipe 9 is sealed, facilitating accurate subsequent testing of the pump's sealing performance.

[0023] When performing a sealing test on the water pump, the pneumatic cylinder 3 is activated, causing the pneumatic rod 4 to move the sealing cover plate 5 vertically downwards until the sealing cover plate 5 covers the port of the water tank 1. The pneumatic cylinder 3 then stops operating, thus sealing the water tank 1 and completely sealing the water pump body 7 inside the water tank 1. This puts the water pump body 7 in a state where it only takes in air and does not exhaust it. If the water pump body 7 leaks air, the gas in the water tank 1 will enter the cavity sleeve 19 through the air outlet 18, thereby pushing the piston 20 to move vertically upwards. This causes the movable rod 21 to move the first electrode plate 22 upwards as well. When the first electrode plate 22 contacts the second electrode plate 23, the warning light 24 sounds an alarm, indicating that the water pump has an air leak. Conversely, if the first electrode plate 22 does not contact the second electrode plate 23, it indicates that the water pump has a good seal. By keeping the water pump in a completely sealed state and with the cooperation of the first electrode plate 22, the second electrode plate 23, and the warning light 24, the sealing performance of the water pump can be accurately tested, thereby improving the testing effect of the water pump's sealing performance.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A water pump tightness detection device, characterized by: Including sink (1), one side of the sink (1) is fixedly connected with support frame (2), the support frame (2) is installed with pneumatic cylinder (3), the acting end of pneumatic cylinder (3) is equipped with pneumatic rod (4), the bottom end of pneumatic rod (4) is fixedly connected with sealing cover plate (5), the sealing cover plate (5) is opened with air outlet hole (18), the port of air outlet hole (18) is fixedly connected with cavity sleeve (19), the cavity sleeve (19) is provided with piston (20), the piston (20) is equipped with movable rod (21), the bottom end of movable rod (21) is arranged in air outlet hole (18), the top end of movable rod (21) is fixedly connected with first electrode plate (22), the top end inner wall of cavity sleeve (19) is fixedly connected with second electrode plate (23), the top of cavity sleeve (19) is equipped with warning light (24), the first electrode plate (22), second electrode plate (23) and warning light (24) are electrically connected.

2. The water pump sealing detection device according to claim 1, wherein: The sealing cover plate (5) is installed with placing rack (6), the placing rack (6) is provided with water pump body (7), the output port of water pump body (7) is connected with discharge pipe (8), the input port of water pump body (7) is connected with air inlet pipe (9), and the other end of air inlet pipe (9) is arranged through sealing cover plate (5).

3. The water pump sealing detection device of claim 1, wherein: The sealing cover plate (5) is opened with first screw hole, the first screw hole is screw mounted with first threaded rod (12), the bottom end of first threaded rod (12) is fixedly connected with sealing rubber pad (13), the top end of first threaded rod (12) is fixedly connected with first rotating cap (14).

4. The water pump sealing detection device of claim 2, wherein: The placing rack (6) is fixedly connected with short plate (10), the short plate (10) is fixedly connected with sealing rubber gasket (11), and the sealing rubber gasket (11) is sleeved on the port of air inlet pipe (9).

5. The water pump seal detection device of claim 2, wherein: The placing rack (6) is opened with second screw hole, the second screw hole is screw mounted with second threaded rod (15), one end of second threaded rod (15) is fixedly connected with push plate (16), the other end of second threaded rod (15) is fixedly connected with second rotating cap (17).

6. The water pump seal detection device of claim 1, wherein: The bottom end of one side of the sink (1) is opened with drain hole, and the port of the drain hole is fixedly connected with drain pipe (25).

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