Water pressure detection equipment for pump body casting detection

Abstract

The utility model discloses a water pressure detection device for detecting a pump body casting, which relates to the technical field of detection, and comprises a workbench, the surface of the workbench is fixedly connected with a fixing frame, and the surface of the workbench is slidably connected with two protective shells. Fixing blocks are fixedly connected to the interiors of the two protective shells, first springs are fixedly connected to the surfaces of the fixing frames, the ends, away from the fixing frames, of the first springs are fixedly connected with the protective shells, a placing plate is fixedly connected to the surface of the workbench, a pump body casting is placed on the surface of the placing plate, and hydraulic telescopic rods are fixedly connected to the surfaces of the fixing frames; according to the water pressure detection equipment for detecting the pump body casting, the detected pump body casting is covered by starting the hydraulic telescopic rod and enabling the two protective shells to move relatively, so that when the pump body casting is detected and the pump body casting is unqualified and has cracks and sand holes, water is prevented from being sprayed and splashed to the body of a worker, and the worker is protected.

Description

Technical Field

[0001] This utility model relates to the field of testing technology, and in particular to a water pressure testing device for testing pump body castings. Background Technology

[0002] A water pump is a machine that transports or pressurizes liquids. It transfers the mechanical energy of a prime mover or other external energy to the liquid, increasing the liquid's energy. It is mainly used to transport liquids including water, oil, acid and alkali solutions, emulsions, suspensions, and liquid metals.

[0003] However, during the casting process of existing water pumps, defects sometimes occur in the pump casing due to differences in casting technology. These defects include cracks or pinholes in the pump casing, which can cause water to spray out from these cracks or pinholes during water pressure testing, potentially hitting the workers. To address this issue, a water pressure testing device for pump casting inspection has been proposed. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a water pressure testing device for testing pump body castings, which can solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water pressure testing device for testing pump body castings, comprising a workbench, a fixed frame fixedly connected to the surface of the workbench, two protective shells slidably connected to the surface of the workbench, a fixed block fixedly connected inside each of the two protective shells, a spring fixedly connected to the surface of the fixed frame, the end of the spring away from the fixed frame being fixedly connected to the protective shell, a placement plate fixedly connected to the surface of the workbench, a pump body casting placed on the surface of the placement plate, a hydraulic telescopic rod fixedly connected to the surface of the fixed frame, the output end of the hydraulic telescopic rod slidably connected to the interior of the fixed frame, a pressure block fixedly connected to the output end of the hydraulic telescopic rod, and a push rod fixedly connected to the output end of the hydraulic telescopic rod.

[0006] Preferably, the fixing block is inclined, and the surfaces of the two protective shells are provided with observation windows.

[0007] Preferably, the surface of the placement plate is provided with a rubber pad, and the surface of the pressure block is also provided with a rubber pad.

[0008] Preferably, a fixing sleeve is fixedly connected to the surface of the fixing frame, and a limit rod is slidably connected inside the fixing sleeve, with the surface of the limit rod slidably connected to the inside of the fixing frame.

[0009] Preferably, a water tank is fixedly connected to the bottom of the workbench, a pressure pump is installed inside the water tank, a water supply pipe is fixedly connected to the surface of the water tank, the water supply pipe extends into the interior of the water tank, and one end of the water supply pipe is connected to the pressure pump.

[0010] Preferably, a telescopic hose is fixedly connected to the end of the water supply pipe away from the water tank, and the end of the telescopic hose away from the water supply pipe is fixedly connected to the pressure block.

[0011] Preferably, the placement plate has a through groove inside, which penetrates the surface of the workbench. A connecting pipe is fixedly connected to the bottom of the workbench, and the end of the connecting pipe away from the workbench is fixedly connected to the water tank. A sliding rod is slidably connected inside the workbench, and a baffle is slidably connected inside the workbench. The surface of the baffle is fixedly connected to the sliding rod. A second spring is movably sleeved on the surface of the sliding rod, and the two ends of the second spring are fixedly connected to the workbench and the sliding rod, respectively. A connecting rod is fixedly connected to the surface of the protective shell, and the surface of the connecting rod is slidably connected to the surface of the workbench.

[0012] Preferably, the surface of the connecting rod is inclined, and the surface of the placement plate is stepped.

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

[0014] (1) The water pressure testing equipment used for testing pump body castings can cover the pump body castings to be tested by activating the hydraulic telescopic rod and moving the two protective shells relative to each other. This avoids water spraying onto the workers when the pump body castings are found to be unqualified and have cracks or sand holes during testing, thus protecting the workers.

[0015] (2) The water pressure testing equipment used for testing the pump body casting, when the protective shell moves, the protective shell drives the limit rod to move, and then the sliding of the protective shell is limited by the setting of the fixed sleeve and the limit rod, thereby avoiding the shaking of the protective shell during the sliding process. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the surface structure of the worktable of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the workbench of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the protective shell of this utility model;

[0021] Figure 5 This is a schematic diagram of the surface structure of the placement plate of this utility model.

[0022] Reference numerals in the attached drawings: 1. Workbench; 2. Fixing frame; 3. Fixing sleeve; 4. Limiting rod; 5. Spring 1; 6. Protective shell; 7. Hydraulic telescopic rod; 8. Fixing block; 9. Push rod; 10. Pressure block; 11. Pump body casting; 12. Placement plate; 13. Connecting rod; 14. Sliding rod; 15. Spring 2; 16. Water tank; 17. Water supply pipe; 18. Telescopic hose; 19. Connecting pipe; 20. Through groove; 21. Baffle. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a water pressure testing device for testing pump body castings, including a workbench 1, a fixed frame 2 fixedly connected to the surface of the workbench 1, two protective shells 6 slidably connected to the surface of the workbench 1, a fixed block 8 fixedly connected inside each of the two protective shells 6, and the fixed block 8 is inclined, and an observation window is provided on the surface of the two protective shells 6, a spring 5 fixedly connected to the surface of the fixed frame 2, the end of the spring 5 away from the fixed frame 2 being fixedly connected to the protective shell 6, and the spring 5 being compressed when the two protective shells 6 are separated, a placement plate 12 fixedly connected to the surface of the workbench 1, a rubber pad being provided on the surface of the placement plate 12, a pump body casting 11 being placed on the surface of the placement plate 12, a hydraulic telescopic rod 7 fixedly connected to the surface of the fixed frame 2, the output end of the hydraulic telescopic rod 7 being slidably connected to the inside of the fixed frame 2, a pressure block 10 fixedly connected to the output end of the hydraulic telescopic rod 7, a rubber pad being provided on the surface of the pressure block 10, and a push rod 9 fixedly connected to the output end of the hydraulic telescopic rod 7.

[0025] After the pump body casting 11 is placed, the operator activates the hydraulic telescopic rod 7. The output end of the hydraulic telescopic rod 7 drives the pressure block 10 to move. The pressure block 10 moves and squeezes the pump body casting 11. Furthermore, through the setting of the pressure block 10 and the rubber pad on the surface of the placement plate 12, the pump body casting 11 is further squeezed and sealed. At the same time, the output end of the hydraulic telescopic rod 7 drives the push rod 9 to move. The push rod 9 moves and no longer contacts the fixed block 8. Thus, under the elastic force of the spring 5, the two protective shells 6 move relative to each other, covering the pump body casting 11 to be tested. This avoids water spraying onto the operator when the pump body casting 11 is unqualified and has cracks or sand holes during the test, thus protecting the operator.

[0026] A fixing sleeve 3 is fixedly connected to the surface of the fixing frame 2. A limit rod 4 is slidably connected inside the fixing sleeve 3. The surface of the limit rod 4 is slidably connected to the inside of the fixing frame 2.

[0027] When the protective shell 6 moves, it drives the limiting rod 4 to move. The sliding of the protective shell 6 is limited by the setting of the fixing sleeve 3 and the limiting rod 4, thereby preventing the protective shell 6 from shaking during the sliding process.

[0028] A water tank 16 is fixedly connected to the bottom of the workbench 1. A pressure pump is installed inside the water tank 16 to transport water. A water supply pipe 17 is fixedly connected to the surface of the water tank 16 and extends into the interior of the water tank 16. One end of the water supply pipe 17 is connected to the pressure pump. A telescopic hose 18 is fixedly connected to the end of the water supply pipe 17 away from the water tank 16. The end of the telescopic hose 18 away from the water supply pipe 17 is fixedly connected to the pressure block 10.

[0029] When the pressure block 10 moves down and presses against the pump body casting 11, the pressure pump starts to deliver water. Water then enters the interior of the pump body casting 11 through the water delivery pipe 17, the telescopic hose 18, and the pressure block 10, allowing for the testing of the pump body casting 11.

[0030] The placement plate 12 has a through groove 20 inside, which penetrates the surface of the workbench 1. A connecting pipe 19 is fixedly connected to the bottom of the workbench 1. The end of the connecting pipe 19 away from the workbench 1 is fixedly connected to the water tank 16. A sliding rod 14 is slidably connected inside the workbench 1. A baffle 21 is slidably connected inside the workbench 1. The surface of the baffle 21 is fixedly connected to the sliding rod 14. A second spring 15 is movably sleeved on the surface of the sliding rod 14. The two ends of the second spring 15 are fixedly connected to the workbench 1 and the sliding rod 14, respectively. A connecting rod 13 is fixedly connected to the surface of the protective shell 6. The surface of the connecting rod 13 is slidably connected to the surface of the workbench 1, and the surface of the connecting rod 13 is set to be inclined.

[0031] After the pump body casting 11 is inspected, the hydraulic telescopic rod 7 is activated. The output end of the hydraulic telescopic rod 7 drives the pressure block 10 and the push rod 9 to move upward. The push rod 9 moves and squeezes the inclined surface of the fixed block 8, causing the two protective shells 6 to slide in opposite directions. The protective shells 6 drive the connecting rod 13 to move, so that the inclined surface of the connecting rod 13 squeezes the sliding rod 14. The sliding rod 14 is forced to move the baffle 21, and then the baffle 21 moves and no longer covers the through groove 20. As a result, the water inside the pump body casting 11 returns to the inside of the water tank 16 through the through groove 20 and the connecting pipe 19 for collection, reducing the waste of water resources.

[0032] The surface of the placement plate 12 is set in a stepped shape. Thus, when the pump body casting 11 is subjected to force and is pressed tightly against the placement plate 12, the stepped surface of the placement plate 12 is located inside the pump body casting 11. In conjunction with the setting of the rubber gasket, the pump body casting 11 is sealed, preventing water from flowing out between the pump body casting 11 and the placement plate 12.

[0033] Working principle: After the pump body casting 11 is placed, the operator starts the hydraulic telescopic rod 7. The output end of the hydraulic telescopic rod 7 drives the pressure block 10 to move. The pressure block 10 moves and squeezes the pump body casting 11. Then, through the setting of the pressure block 10 and the rubber pad on the surface of the placement plate 12, the pump body casting 11 is further squeezed and sealed. At the same time, the output end of the hydraulic telescopic rod 7 drives the push rod 9 to move. The push rod 9 moves and no longer contacts the fixed block 8. Thus, under the elastic force of the spring 5, the two protective shells 6 move relative to each other and cover the pump body casting 11 being tested.

[0034] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A water pressure testing device for inspecting pump body castings, comprising a workbench (1), characterized in that: The surface of the workbench (1) is fixedly connected to a fixed frame (2), and the surface of the workbench (1) is slidably connected to two protective shells (6). The interior of each of the two protective shells (6) is fixedly connected to a fixed block (8). The surface of the fixed frame (2) is fixedly connected to a spring (5), and the end of the spring (5) away from the fixed frame (2) is fixedly connected to the protective shell (6). The surface of the workbench (1) is fixedly connected to a placement plate (12), and a pump body casting (11) is placed on the surface of the placement plate (12). The surface of the fixed frame (2) is fixedly connected to a hydraulic telescopic rod (7), and the output end of the hydraulic telescopic rod (7) is slidably connected to the interior of the fixed frame (2). The output end of the hydraulic telescopic rod (7) is fixedly connected to a pressure block (10), and the output end of the hydraulic telescopic rod (7) is fixedly connected to a push rod (9).

2. The water pressure testing equipment for testing pump body castings according to claim 1, characterized in that: The fixing block (8) is set at an angle, and the surfaces of the two protective shells (6) are provided with observation windows.

3. The water pressure testing equipment for testing pump body castings according to claim 1, characterized in that: The surface of the placement plate (12) is provided with a rubber pad, and the surface of the pressure block (10) is also provided with a rubber pad.

4. The water pressure testing equipment for testing pump body castings according to claim 1, characterized in that: The surface of the fixed frame (2) is fixedly connected to a fixed sleeve (3), and the inside of the fixed sleeve (3) is slidably connected to a limit rod (4), and the surface of the limit rod (4) is slidably connected to the inside of the fixed frame (2).

5. The water pressure testing equipment for testing pump body castings according to claim 4, characterized in that: A water tank (16) is fixedly connected to the bottom of the workbench (1). A pressure pump is installed inside the water tank (16). A water supply pipe (17) is fixedly connected to the surface of the water tank (16). The water supply pipe (17) extends into the interior of the water tank (16). One end of the water supply pipe (17) is connected to the pressure pump.

6. The water pressure testing equipment for inspecting pump body castings according to claim 5, characterized in that: The end of the water supply pipe (17) away from the water tank (16) is fixedly connected to a telescopic hose (18), and the end of the telescopic hose (18) away from the water supply pipe (17) is fixedly connected to the pressure block (10).

7. A water pressure testing device for inspecting pump body castings according to claim 6, characterized in that: The placement plate (12) has a through groove (20) inside, which penetrates the surface of the workbench (1). A connecting pipe (19) is fixedly connected to the bottom of the workbench (1). The end of the connecting pipe (19) away from the workbench (1) is fixedly connected to the water tank (16). A sliding rod (14) is slidably connected inside the workbench (1). A baffle (21) is slidably connected inside the workbench (1). The surface of the baffle (21) is fixedly connected to the sliding rod (14). A second spring (15) is movably sleeved on the surface of the sliding rod (14). The two ends of the second spring (15) are fixedly connected to the workbench (1) and the sliding rod (14) respectively. A connecting rod (13) is fixedly connected to the surface of the protective shell (6). The surface of the connecting rod (13) is slidably connected to the surface of the workbench (1).

8. A water pressure testing device for inspecting pump body castings according to claim 7, characterized in that: The surface of the connecting rod (13) is inclined, and the surface of the placement plate (12) is stepped.

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