A self-priming pump body and its pressure resistance testing machine

Abstract

The present invention relates to the technical field of self-priming pump detection, and discloses a self-priming pump body and a pressure test machine thereof, wherein the self-priming pump body comprises a base, a driving motor is fixed on the base, a shell is fixed on the base, a driving cover is fixed on one side of the shell, a transmission rod rotates in the driving cover, the output end of the driving motor is connected to the impeller in the shell through the transmission rod, a water inlet is fixed on one side of the shell, a water outlet is fixed on the shell, and the pressure test machine comprises a machine platform, a feeding platform is fixed on the machine platform, two detection platforms are fixed on one side of the feeding platform, feeding rollers are rotated in an array on the feeding platform, two discharge ports are arranged on one side of the feeding platform, a cylinder 1 is fixed on one end of the detection platform, and a circular plate is fixed on the output end of the cylinder 1. The present invention uses a component 1 to test the inside of the self-priming pump, which can simulate the impact of debris in the conveying liquid on the inside of the self-priming pump body, and a test component 2 detects the outside of the self-priming pump to test the compressive strength of the self-priming pump body, and the detection accuracy is high.

Description

Technical Field

[0001] The present invention relates to the technical field of self-priming pump detection, and specifically to a self-priming pump body and its pressure resistance testing machine. Background Art

[0002] The self-priming pump belongs to a self-priming centrifugal pump. Its advantages such as compact structure and convenient operation make it widely used. The self-priming pump also has a strong self-priming ability.

[0003] In the prior art, such as the one disclosed in the application number: CN202311104830.4 with the name: A water pressure testing machine for a magnetic pump pump shell, which includes a testing machine frame, a sealing pressure seat, a toggle drive assembly and a testing pump body. A drive seat and a testing seat are fixedly installed on the surface of the testing machine frame. A number of sliding guide rods are fixedly installed on the relative inner sides of the drive seat and the testing seat. Pressure plate gaskets are fixedly installed on the relative inner sides of the sealing pressure seat and the testing seat. A water pressure gauge and a gas pressure gauge are provided on the surface of the pressure plate gasket.

[0004] However, for the testing machine mentioned in the prior art, although the detection process is stable by using a water pressure gauge and a gas pressure gauge, it cannot simulate the actual working conditions of the water pump, resulting in poor detection effect of the water pump. Therefore, it is necessary to design a self-priming pump body and its pressure resistance testing machine. Summary of the Invention

[0005] The purpose of the present invention is to provide a self-priming pump body and its pressure resistance testing machine to solve the problems in the prior art.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A pressure resistance testing machine for a self-priming pump body. The self-priming pump body includes a base, a drive motor is fixed on the base, a housing is fixed on the base, a drive cover is fixed on one side of the housing, a transmission rod rotates in the drive cover, and the output end of the drive motor is connected to the impeller in the housing through the transmission rod. An inlet is fixed on one side of the housing, and an outlet is fixed on the housing.

[0008] The pressure resistance testing machine includes a machine table, a feeding table is fixed on the machine table, two detection tables are fixed on one side of the feeding table, feeding rollers rotate in an array on the feeding table, there are two discharge ports for conveying the self-priming pump to the detection tables on one side of the feeding table, a cylinder one is fixed at one end of the detection table, and a circular plate is fixed at the output end of the cylinder one.

[0009] Further, positioning blocks are symmetrically arranged on the detection table, vertical frames are fixed on both sides of the detection table, a cylinder two is fixed on the vertical frame, a pressing plate is fixedly connected to the output end of the cylinder two, and a positioning groove is provided below the pressing plate, and the positioning groove cooperates with the positioning block.

[0010] A guide plate is fixedly connected below the machine table. A guide groove is provided on the guide plate, and transverse grooves are symmetrically provided on the guide plate and below the guide groove.

[0011] Further, a first test piece is fixed on the test bench. A first guide rod and a first motor are fixed on the first test piece. A bidirectional lead screw is rotatably arranged on the first test piece. The output end of the first motor is connected to the bidirectional lead screw. Claws are symmetrically slidably arranged on the first guide rod. V-shaped grooves are symmetrically fixed on the claws. An arc-shaped groove for clamping the water outlet is provided on the V-shaped groove.

[0012] Further, a mounting bracket is fixed on the first test piece. A third cylinder is fixedly connected to the mounting bracket. The output end of the third cylinder is fixedly connected to a pressing block. Pressing rods are symmetrically slidably arranged on the first test piece. An inclined surface block is provided at the top end of the pressing rod. The inclined surface block is connected to the mounting bracket through a first spring. One end of the pressing rod is fixedly connected to a mounting rod.

[0013] An L-shaped rod is fixed on the side surface of the claw. The top of the L-shaped rod is slidably connected to the inclined surface of the inclined surface block. A detection rod is slidably arranged at the end of the mounting rod. A second spring is fixed on the detection rod. The second spring is connected to the side surface of the mounting rod. An inclined groove is fixed at one end of the detection rod, and an arc-shaped rod is fixed at the other end. A pressure sensor for detecting the internal pressure is fixed on one side of the arc-shaped rod.

[0014] Further, a lifting assembly is fixed below the machine table. The lifting assembly includes a bottom frame. Top rollers are rotatably arranged in an array on the bottom frame. Guide columns are fixed on the outside of the bottom frame. The guide columns are slidably connected to the guide grooves. A support rod is rotatably arranged below the bottom frame. A support block is rotatably arranged at one end of the support rod. The support block is slidably connected to the transverse groove.

[0015] Further, two feeding members are fixed on one side of the feeding table. The feeding members are fixed on the machine table. A fourth cylinder is fixed on the feeding members. The output end of the fourth cylinder is fixedly connected to a top rod. A top block is fixedly connected to one end of the top rod. A driven rod is slidably arranged on the top rod. The driven rod is slidably arranged on the machine table. A push rod for moving the support block is fixed at one end of the driven rod.

[0016] One side of the driven rod is attached to the top block, and a third spring is fixed on the other side. The output end of the fourth cylinder is fixedly connected to a fixed block. The fixed block is fixedly connected to the third spring.

[0017] Further, a second test piece is fixed on the test bench. The second test piece includes a fixing frame. Second guide rods are fixed on both sides of the fixing frame. A lead screw is rotatably arranged on the fixing frame. A second motor is fixed on the fixing frame. The output end of the second motor is connected to the lead screw. A moving frame is slidably arranged on the second guide rods. The moving frame is threadedly connected to the lead screw.

[0018] A cylinder five is fixed on the top of the fixed frame, a sealing plate is fixedly connected to the output end of the cylinder five, an air inlet pipe is fixed on one side of the sealing plate, an air outlet is provided below the sealing plate, an air pressure sensor is fixed in the air outlet, the air outlet is connected to the air inlet pipe, the air inlet pipe is connected to an external air pump, and guide sleeves are symmetrically fixed on the movable frame.

[0019] Furthermore, a rectangular sleeve is fixed on the movable frame, two guide sleeves are respectively fixed on both sides of the rectangular sleeve, a spring four is fixed in the rectangular sleeve, a motor three is fixed on one side of the movable frame, and a cam is fixedly connected to the output end of the motor three.

[0020] Furthermore, a moving block slides in the rectangular sleeve, a limiting rod is fixed on the moving block, four sets of springs are arranged on the limiting rod, a horizontal plate cooperating with the cam is fixed on one side of the moving block, a sliding hole is provided at the bottom of the moving block, a moving rod slides in the rectangular sleeve, one end of the moving rod is slidably connected to the sliding hole, and the other end is fixedly connected to a pressure plate.

[0021] Furthermore, a retaining ring is provided on the moving rod, which is fixedly connected to the moving rod and is fitted under the moving block. A U-shaped rod slides in the guide sleeve, a connecting block is fixed at one end of the U-shaped rod, and a detection plate is fixed at the other end. A spring five is fixed in the connecting block, and one end of the spring five is connected to the side of the rectangular sleeve.

[0022] One side of the connecting block is provided with an inclined guide surface, one side of the moving block is fixed with a V-shaped block, the V-shaped block is slidably connected to the inclined guide surface, and a pressure sensor for monitoring external pressure is fixed on the side of the detection plate away from the U-shaped rod.

[0023] Beneficial effects of the present invention:

[0024] 1. The pressure resistance tester of the self-priming pump body of the present invention can test the inside of the self-priming pump body through the test piece 1 to detect the strength of the inner wall of the self-priming pump body, and can simulate the impact of the internal debris in the conveying liquid on the self-priming pump body, and simulate the real-life test of the internal part of the self-priming pump body;

[0025] 2. The pressure tester for the self-priming pump body of the present invention has a simple structure. The test piece 2 is used to detect the outside of the self-priming pump body to perform pressure resistance detection on the outside of the self-priming pump body, test the compressive strength of the self-priming pump body, simulate the actual working conditions of the self-priming pump body, and have a good detection effect on the self-priming pump body with high detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] Figure 1 It is a structural schematic diagram of the pump body of the self-priming pump of the present invention;

[0028] Figure 2 It is a side view of the pump body of the self-priming pump of the present invention;

[0029] Figure 3 It is a schematic diagram of the overall structure of the withstand voltage testing machine of the present invention;

[0030] Figure 4 It is a schematic diagram of the structure of the withstand voltage testing machine of the present invention;

[0031] Figure 5 It is a schematic diagram of the structure of the base of the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the detection table of the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of Test Piece 1 of the present invention;

[0034] Figure 8 It is a schematic cross-sectional structure diagram of Test Piece 1 of the present invention;

[0035] Figure 9 It is a schematic diagram of the structure of the feeding part and the lifting component of the present invention;

[0036] Figure 10 It is a schematic diagram of the structure of Test Piece 2 of the present invention;

[0037] Figure 11 It is a schematic diagram of the structure of Test Piece 2 of the present invention;

[0038] Figure 12 It is a schematic cross-sectional structure diagram of Test Piece 2 of the present invention;

[0039] Figure 13 It is the present invention Figure 7 The enlarged structure diagram at position A in;

[0040] The description of the reference numerals is as follows:

[0041] 1. Base; 2. Machine platform; 3. First test piece; 4. Second test piece; 5. Moving block; 6. Lifting component; 7. Feeding piece; 10. Driving motor; 11. Bracket; 12. Driving cover; 13. Housing; 14. Water outlet; 15. Water inlet; 20. Positioning block; 21. Feeding table; 22. Feeding roller; 23. Discharge port; 24. Detection table; 25. First cylinder; 26. Vertical frame; 27. Second cylinder; 28. Pressing plate; 29. Positioning groove; 30. First motor; 31. Bi-directional lead screw; 32. First guide rod; 33. Mounting frame; 34. Third cylinder; 35. Pressing block; 36. Claw; 37. Arc groove; 38. V-shaped groove; 39. Pressing rod; 41. Fixed frame; 42. Lead screw; 43. Second guide rod; 44. Second motor; 45. Moving frame; 46. Fifth cylinder; 47. Sealing plate; 48. Intake pipe; 49. Guide sleeve; 51. V-shaped block; 52. Cross plate; 53. Sliding hole; 54. Limiting rod; 55. Moving rod; 56. Pressing plate; 57. Retaining ring; 58. U-shaped rod; 59. Fifth spring; 61. Bottom frame; 62. Top roller; 63. Guide post; 64. Support rod; 65. Support block; 70. Fourth cylinder; 71. Driven rod; 72. Top block; 73. Fixed block; 74. Top rod; 75. Third spring; 76. Push rod; 200. Guide plate; 201. Horizontal groove; 202. Guide groove; 361. L-shaped rod; 391. Inclined plane block; 392. First spring; 393. Mounting rod; 394. Detection rod; 395. Second spring; 396. Inclined groove; 397. Arc rod; 400. Rectangular sleeve; 401. Fourth spring; 402. Cam; 581. Detection plate; 582. Connecting block; 583. Inclined guide surface. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] A self-priming pump body and its pressure resistance testing machine. The pressure resistance testing machine uses a pressure sensor to monitor the pressure test of the self-priming pump body, detect the material strength of the pump body, and improve the qualified rate of self-priming pump products in actual production. The pressure sensor belongs to one of the intelligent sensors.

[0044] As Figures 1 - 2As shown in the figure, the self-priming pump body includes a base 1, on which a driving motor 10 is fixedly provided. A bracket 11 is fixedly installed on the base 1. A transmission rod is rotatably provided inside the bracket 11. The transmission rod is fixedly connected to the output end of the driving motor 10. A housing 13 is fixedly provided on the base 1. A driving cover 12 is fixedly provided on one side of the housing 13. The transmission rod rotates inside the driving cover 12, and one end of the transmission rod penetrates through the driving cover 12 and is fixedly connected to the impeller inside the housing 13, driving the impeller inside the housing 13 to rotate, and having a strong liquid self-priming ability.

[0045] An inlet 15 is fixedly provided on one side of the housing 13, and an outlet 14 is fixedly provided on the housing 13. By the rotation of the impeller, the liquid is self-primed from the inlet 15 and then discharged from the outlet 14 to achieve liquid drive supply.

[0046] As Figures 3 - 6 shown in the figure, the pressure testing machine includes a machine table 2, on which a feeding table 21 is fixedly provided. Two feeding members 7 are fixedly provided on one side of the feeding table 21, and two testing tables 24 are fixedly provided on the other side. A first testing member 3 is fixedly provided on one testing table 24, and a second testing member 4 is fixedly provided on the other testing table 24. A lifting assembly 6 is fixedly provided below the machine table 2, and the lifting assembly 6 corresponds to the feeding members 7 one by one.

[0047] Rotating feeding rollers 22 distributed in an array are provided on the feeding table 21, which sequentially push the pump body to move on the feeding rollers 22. The rotation of the feeding rollers 22 helps to sequentially feed the pump body. Two discharge ports 23 are opened on the side of the feeding table 21 away from the feeding members 7, and the discharge ports 23 are docked with the testing tables 24 to send the pump body on the feeding table 21 onto the testing tables 24.

[0048] A first cylinder 25 is fixedly provided at one end of the testing table 24 away from the discharge port 23. A circular plate is fixedly provided at the output end of the first cylinder 25. Symmetrically distributed positioning blocks 20 are provided on the testing table 24. Vertical frames 26 are fixedly provided on both sides of the testing table 24. A second cylinder 27 is fixedly provided on the vertical frames 26. A pressing plate 28 is fixedly connected to the output end of the second cylinder 27. A positioning groove 29 is opened below the pressing plate 28, and the positioning groove 29 cooperates with the positioning blocks 20 to position the connection position between the pressing plate 28 and the testing table 24, ensuring that the pressing plate 28 accurately presses and fixes the base 1 of the pump body.

[0049] Guide plates 200 are fixedly connected below the machine table 2 and on both sides of the feeding members 7. Guide grooves 202 are opened on the guide plates 200. Horizontal grooves 201 are symmetrically opened on one side of the guide grooves 202. The horizontal grooves 201 are provided on the guide plates 200 and are located below the guide grooves 202.

[0050] As Figures 6 - 8 、 Figure 13As shown, a first guide rod 32 is fixedly provided on the first test piece 3. A bidirectional lead screw 31 is rotatably provided on the first test piece 3. A first motor 30 is fixedly provided on the first test piece 3. The output end of the first motor 30 is fixedly connected to the bidirectional lead screw 31 to control the rotation of the bidirectional lead screw 31. Symmetrically distributed clamping jaws 36 are slidably provided on the first guide rod 32. Symmetrically distributed V-shaped grooves 38 are fixedly provided on the clamping jaws 36. An arc-shaped groove 37 is formed in the V-shaped groove 38. The arc-shaped groove 37 clamps the end of the water outlet 14, and the V-shaped groove 38 supports the pipeline at the water outlet 14.

[0051] An installation frame 33 is fixedly provided on the first test piece 3. A third cylinder 34 is fixedly connected to the installation frame 33. The output end of the third cylinder 34 is fixedly connected to a pressing block 35. Symmetrically distributed pressing rods 39 are slidably provided on the first test piece 3. An inclined surface block 391 is formed at the top of the pressing rod 39. The inclined surface block 391 is fixedly connected to the top of the installation frame 33 through a first spring 392. The inclined surface block 391 is supported by the first spring 392. One end of the pressing rod 39 is fixedly connected to an installation rod 393.

[0052] An L-shaped rod 361 is fixedly installed on the side of the clamping jaw 36. The top of the L-shaped rod 361 faces the inclined surface of the inclined surface block 391. When the L-shaped rod 361 moves towards the inclined surface block 391, the end of the L-shaped rod 361 is slidably connected to the inclined surface of the inclined surface block 391 to control the downward movement of the pressing rod 39. On the contrary, when the L-shaped rod 361 moves away from the inclined surface block 391, the fixation of the inclined surface block 391 is released, and the first spring 392 pushes the pressing rod 39 to move upward.

[0053] A detection rod 394 is slidably provided at the end of the installation rod 393. A second spring 395 is fixedly provided on the detection rod 394. One end of the second spring 395 is fixedly connected to the side of the installation rod 393. Due to the elastic force of the second spring 395, the two detection rods 394 tend to move closer to each other. An inclined groove 396 is formed at one end of the detection rod 394, and an arc rod 397 is formed at the other end. The two inclined grooves 396 are close to each other.

[0054] The third cylinder 34 is controlled to move the pressing block 35 downward. The pressing block 35 is slidably connected to the inclined groove 396 to push the two detection rods 394 to move in opposite directions. The arc rod 397 applies pressure to the inner wall of the water outlet 14. A pressure sensor (not shown in the figure) is fixedly provided on the side of the arc rod 397 facing the inner wall to monitor the detected pressure. The arc rod 397 performs a pressure resistance test on the inner wall of the water outlet 14 to detect the water pressure resistance strength inside the self-priming pump pump body and ensure the strength of the self-priming pump pump body.

[0055] As Figure 9As shown in the figure, the lifting component 6 includes a chassis 61. On the chassis 61, top rollers 62 distributed in an array are rotatably arranged. The chassis 61 moves upward until the top rollers 62 pass through between adjacent material conveying rollers 22. On the outer side of the chassis 61, guide posts 63 are fixedly arranged. The guide posts 63 are slidably connected with guide grooves 202 to provide guidance for the lifting and moving of the chassis 61. Below the chassis 61, a support rod 64 is rotatably arranged. One end of the support rod 64 away from the chassis 61 is rotatably connected with a support block 65. The support block 65 is slidably connected with a transverse groove 201.

[0056] The feeding component 7 is fixedly installed on the machine table 2. On the feeding component 7, a fourth cylinder 70 is fixedly arranged. The output end of the fourth cylinder 70 is fixedly connected with a top rod 74. One end of the top rod 74 is fixedly connected with a top block 72. A driven rod 71 is slidably arranged on the top rod 74. The driven rod 71 is slidably arranged on the machine table 2. One end of the driven rod 71 is fixedly provided with a push rod 76. The push rod 76 is attached to one side of the support block 65. The movement of the push rod 76 will push the support block 65 to translate, so that the chassis 61 moves vertically under the guiding action of the guide groove 202.

[0057] By moving the top rollers 62 rotatably arranged on the chassis 61 upward, the top rollers 62 support the self-priming pump body on the material conveying rollers 22, which is convenient for the top block 72 to push the self-priming pump body towards the discharge port 23.

[0058] One side of the driven rod 71 is attached to the top block 72, and the other side is fixedly connected with a third spring 75. The output end of the fourth cylinder 70 is fixedly connected with a fixed block 73. The fixed block 73 is fixedly connected with the third spring 75. When the output end of the fourth cylinder 70 extends, the third spring 75 will push the driven rod 71 to move, so that the driven rod 71 drives the push rod 76 to move the support block 76. When the chassis 61 is lifted, the output end of the fourth cylinder 70 continues to extend, and the top rod 74 and the top block 72 slide out from the driven rod 71 to move the self-priming pump body on the top rollers 62.

[0059] As Figures 10 - 12 As shown in the figure, the second test piece 4 includes a fixed frame 41. On both sides of the fixed frame 41, second guide rods 43 are fixedly arranged. On one side of the second guide rods 43, a lead screw 42 is arranged. The two ends of the lead screw 42 are rotatably connected with the fixed frame 41. On the top of the fixed frame 41, a second motor 44 is fixedly installed. The output end of the second motor 44 is fixedly connected with the lead screw 42 to drive the lead screw 42 to rotate. A moving frame 45 is slidably arranged on the second guide rods 43. The moving frame 45 is threadedly connected with the lead screw 42.

[0060] At the top of the fixing frame 41, a fifth cylinder 46 is fixedly installed. The output end of the fifth cylinder 46 is fixedly connected to a sealing plate 47. On one side of the sealing plate 47, an air inlet pipe 48 is fixedly provided. Below the sealing plate 47, an air outlet is opened. An air pressure sensor is fixedly installed in the air outlet. The air outlet is communicated with the air inlet pipe 48, and the air inlet pipe 48 is communicated with an air pump through a pipeline. On the moving frame 45, symmetrically distributed guide sleeves 49 are fixedly provided, and a rectangular sleeve 400 is fixedly provided on the moving frame 45.

[0061] Inside the rectangular sleeve 400, a fourth spring 401 is fixedly installed. On one side of the moving frame 45, a third motor is fixedly installed. The third motor is not shown in the figure. The output end of the third motor is fixedly connected to a cam 402.

[0062] Inside the rectangular sleeve 400, a moving block 5 is slidably arranged. The top of the moving block 5 is fixedly connected to the fourth spring 401. On one side of the moving block 5, a cross plate 52 is fixedly provided. When the cam 402 rotates, it will push the cross plate 52 to move upward. A sliding hole 53 is opened at the bottom of the moving block 5. On the moving frame 45, a moving rod 55 is slidably arranged, and the moving rod 55 penetrates below the rectangular sleeve 400.

[0063] One end of the moving rod 55 is slidably connected to the sliding hole 53, and the other end is fixedly connected to a pressing plate 56. A retaining ring 57 is sleeved on the moving rod 55, and the retaining ring 57 is fixedly connected to the moving rod 55. The retaining ring 57 is attached to the lower side of the moving block 5. A limiting rod 54 is fixedly provided on the moving block 5. The limiting rod 54 is located inside the fourth spring 401 to limit the fourth spring 401. The two guide sleeves 49 are respectively fixed on both sides of the rectangular sleeve 400.

[0064] Inside the guide sleeve 49, a U-shaped rod 58 is slidably arranged. One end of the U-shaped rod 58 is fixedly provided with a connecting block 582. Inside the connecting block 582, a fifth spring 59 is fixedly installed. One end of the fifth spring 59 is fixedly connected to the side surface of the rectangular sleeve 400. An inclined guide surface 583 is opened on one side of the connecting block 582. On one side of the moving block 5, a V-shaped block 51 is fixedly provided. The V-shaped block 51 is slidably connected to the inclined guide surface 583. The other end of the U-shaped rod 58 is fixedly provided with a detection plate 581. On the side of the detection plate 581 away from the U-shaped rod 58, a pressure sensor is fixedly installed.

[0065] In this embodiment, the pressure sensor adopts the model: FSR-A406, and the air pressure sensor adopts the model: CYYZ51E.

[0066] The working principle is as follows:

[0067] Sequentially send the self-priming pump body onto the feeding table 21, move the self-priming pump body to the feeding part 7 corresponding to the discharge port 23, start the cylinder four 70 on the feeding part 7. When the output end of the cylinder four 70 extends, use the spring three 75 to push the driven rod 71, so that the push rod 76 moves the support block 76, lift the chassis 61, and then the output end of the cylinder four 70 continues to extend, and the ejector rod 74 and the ejector block 72 move the self-priming pump body on the top roller 62.

[0068] Move the self-priming pump body from the discharge port 23 to the inspection table 24 at the test piece one 3. After fixing the self-priming pump body, test the inner wall of the self-priming pump body through the test piece one 3 to detect the pressure resistance strength inside the pump body.

[0069] Similarly, move the self-priming pump body to the inspection table 24 at the test piece two 4. After fixing the self-priming pump body, use the cylinder one 25 to move the circular plate to seal the water inlet 15 of the pump body, use the cylinder five 46 to move the sealing plate 47 to seal the water outlet 14, supply air into the self-priming pump through an external air pump, monitor the pressure inside the pump through a pressure sensor, start the motor two 44 to control the rotation of the lead screw 42, so that the moving frame 45 moves down, and the pressing plate 56 fits on the upper surface of the driving cover 12. As the moving frame 45 moves down, the pressing plate 56 moves the moving block 5 upward.

[0070] When the V-shaped block 51 moves upward along the rectangular sleeve 400, the spring five 59 pulls the U-shaped rod 58 to move towards each other. At this time, the two connecting blocks 582 will not contact, and the detection plate 581 will not fit on the side of the water outlet 14 of the pump body.

[0071] Then control the rotation of the cam 402 to move the moving block 5. When the moving block 5 moves upward, the spring five 59 pulls the connecting blocks 582 to move towards each other until they contact each other, and the detection plate 581 impacts the side of the water outlet 14 of the pump body for external pressure detection. If the quality of the pump body is unqualified and the self-priming pump vibrates and leaks, the pressure inside the pump body will change.

[0072] Finally, when the cam 402 rotates past the maximum rotation height point, at this time the moving block 5 moves down until the V-shaped block 51 separates the two connecting blocks 582. At this time, the moving block 5 fits on the retaining ring 57. In this way, the external pressure resistance test of the self-priming pump body is carried out reciprocally.

[0073] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A pressure tester for a self-priming pump body, the self-priming pump body comprising a base (1), a driving motor (10) being fixed on the base (1), characterized in that: A housing (13) is fixed on the base (1), a driving cover (12) is fixed on one side of the housing (13), a transmission rod rotates inside the driving cover (12), an output end of the driving motor (10) is connected to an impeller in the housing (13) via the transmission rod, a water inlet (15) is fixed on one side of the housing (13), and a water outlet (14) is fixed on the housing (13); The pressure test machine comprises a machine platform (2), a material feeding platform (21) is fixed on the machine platform (2), two test platforms (24) are fixed on one side of the material feeding platform (21), a material feeding roller (22) is arranged on the material feeding platform (21) to rotate in an array, two material discharge ports (23) for conveying a self-priming pump to the test platform (24) are arranged on one side of the material feeding platform (21), a cylinder 1 (25) is fixed on one end of the test platform (24), and a circular plate is fixed on the output end of the cylinder 1 (25); A test piece (3) is fixed on the detection table (24), a guide rod (32) and a motor (30) are fixed on the test piece (3), a bidirectional lead screw (31) is rotatable on the test piece (3), an output end of the motor (30) is connected to the bidirectional lead screw (31), a clamping claw (36) is symmetrically slidable on the guide rod (32), a V-shaped groove (38) is symmetrically fixed on the clamping claw (36), and an arc groove (37) for clamping the water outlet (14) is provided on the V-shaped groove (38); The test piece 1 (3) is fixed with a mounting frame (33), a cylinder 3 (34) is fixedly connected to the mounting frame (33), a pressure block (35) is fixedly connected to the output end of the cylinder 3 (34), a pressure rod (39) is symmetrically slidable on the test piece 1 (3), a slope block (391) is provided at the top end of the pressure rod (39), the slope block (391) is connected to the mounting frame (33) via a spring 1 (392), and one end of the pressure rod (39) is fixedly connected to a mounting rod (393); An L-shaped rod (361) is fixed to the side of the clamping jaw (36), the top of the L-shaped rod (361) is slidably connected to the inclined surface of the inclined surface block (391), a detection rod (394) is slidably connected to the end of the mounting rod (393), a second spring (395) is fixed to the detection rod (394), and the second spring (395) is connected to the side of the mounting rod (393), an inclined groove (396) is fixed to one end of the detection rod (394), and an arc rod (397) is fixed to the other end, and a pressure sensor for detecting internal pressure is fixed to one side of the arc rod (397).

2. A pressure test machine for a self-priming pump body according to claim 1, characterized in that: The detection platform (24) is symmetrically provided with positioning blocks (20), and vertical frames (26) are fixed on both sides of the detection platform (24). A second cylinder (27) is fixed on the vertical frame (26). A pressure plate (28) is fixedly connected to the output end of the second cylinder (27). A positioning groove (29) is provided below the pressure plate (28), and the positioning groove (29) cooperates with the positioning block (20); A guide plate (200) is fixedly connected below the machine platform (2), a guide groove (202) is provided on the guide plate (200), and transverse grooves (201) are symmetrically provided on the guide plate (200) and below the guide groove (202).

3. A pressure test machine for a self-priming pump body according to claim 2, characterized in that: A lifting assembly (6) is fixed below the machine platform (2), the lifting assembly (6) comprising a base frame (61), top rollers (62) are rotatably arranged in an array on the base frame (61), guide pillars (63) are fixed to the outside of the base frame (61), the guide pillars (63) are slidably connected to the guide grooves (202), a support rod (64) is rotatably arranged below the base frame (61), a support block (65) is rotatably arranged at one end of the support rod (64), and the support block (65) is slidably connected to the transverse groove (201).

4. A pressure test machine for a self-priming pump body according to claim 3, characterized in that: Two feeding members (7) are fixed on one side of the feeding platform (21), the feeding members (7) are fixed on the machine platform (2), a cylinder four (70) is fixed on the feeding member (7), a push rod (74) is fixedly connected to the output end of the cylinder four (70), one end of the push rod (74) is fixedly connected to a push block (72), a driven rod (71) is slidably mounted on the push rod (74), the driven rod (71) slides on the machine platform (2), and a push rod (76) for moving the support block (65) is fixedly mounted on one end of the driven rod (71); One side of the driven rod (71) is attached to the top block (72), and the other side is fixed with a spring three (75). The output end of the cylinder four (70) is fixedly connected with a fixed block (73), and the fixed block (73) is fixedly connected with the spring three (75).

5. The pressure resistance testing machine for a self-priming pump body according to claim 1, characterized in that: A second test piece (4) is fixed on the detection table (24), and the second test piece (4) includes a fixed frame (41), two guide rods (43) are fixed on both sides of the fixed frame (41), a screw rod (42) is rotatably mounted on the fixed frame (41), a second motor (44) is fixed on the fixed frame (41), an output end of the second motor (44) is connected to the screw rod (42), a movable frame (45) is slidably mounted on the second guide rod (43), and the movable frame (45) is threadedly connected to the screw rod (42); A cylinder five (46) is fixed on the top of the fixed frame (41), a sealing plate (47) is fixedly connected to the output end of the cylinder five (46), an air inlet pipe (48) is fixed on one side of the sealing plate (47), an air outlet is provided below the sealing plate (47), an air pressure sensor is fixed in the air outlet, the air outlet is communicated with the air inlet pipe (48), the air inlet pipe (48) is connected to an external air pump, and a guide sleeve (49) is symmetrically fixed on the movable frame (45).

6. A pressure test machine for a self-priming pump body according to claim 5, characterized in that: A rectangular sleeve (400) is fixed on the moving frame (45), two guide sleeves (49) are respectively fixed on both sides of the rectangular sleeve (400), a spring four (401) is fixed inside the rectangular sleeve (400), a motor three is fixed on one side of the moving frame (45), and a cam (402) is fixed to the output end of the motor three.

7. A pressure tester for a self-priming pump body according to claim 6, characterized in that: A moving block (5) slides in the rectangular sleeve (400), a limiting rod (54) is fixed on the moving block (5), a spring (401) is sleeved on the limiting rod (54), a horizontal plate (52) matched with the cam (402) is fixed on one side of the moving block (5), a sliding hole (53) is provided at the bottom of the moving block (5), a moving rod (55) slides in the rectangular sleeve (400), one end of the moving rod (55) is slidably connected to the sliding hole (53), and the other end is fixedly connected to a pressing plate (56).

8. A pressure test machine for a self-priming pump body according to claim 7, characterized in that: The moving rod (55) is provided with a retaining ring (57), the retaining ring (57) is fixedly connected to the moving rod (55), the retaining ring (57) is fitted under the moving block (5), a U-shaped rod (58) is slid in the guide sleeve (49), a connecting block (582) is fixed at one end of the U-shaped rod (58), and a detection plate (581) is fixed at the other end, a spring five (59) is fixed in the connecting block (582), and one end of the spring five (59) is connected to the side of the rectangular sleeve (400); An inclined guide surface (583) is provided on one side of the connecting block (582), a V-shaped block (51) is fixed on one side of the moving block (5), the V-shaped block (51) is slidably connected to the inclined guide surface (583), and a pressure sensor for monitoring external pressure is fixed on the side of the detection plate (581) away from the U-shaped rod (58).

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