High-flow flood control pump and pump body inspection apparatus thereof

Abstract

A high-flow flood control pump and a pump body inspection apparatus thereof, comprising a base (2); a testing platform (21) is fixedly provided on the base (2); a pump base (1) is fixed on the testing platform (21); a pump housing (11) is fixed on the pump base (1); a water inlet (12) is provided on one side of the pump housing (11); a stand (5) is fixed on the base (2); a third cylinder (51) is fixed on the stand (5); a triangular block (57) is fixed at an output end of the third cylinder (51); a mounting plate (52) is fixed on the stand (5); a barrel (53) is fixedly connected to one side of the mounting plate (52); a moving rod (54) slides symmetrically on the barrel (53); a compression spring (55) is provided on the moving rod (54); one end of the compression spring (55) is connected to an inner wall of the barrel (53), and the other end is fixedly connected to a right-angle block (56); the right-angle block (56) is connected to the moving rod (54); a horizontal rod (58) slides on the mounting plate (52); and one end of the horizontal rod (58) is provided with a tapered surface (581), and the other end is provided with an inclined block (582).

Description

A high-flow flood control pump and its pump body testing device Technical Field

[0001] This invention relates to the field of pump production and testing technology, specifically a high-flow flood control pump and its pump body testing device. Background Technology

[0002] Flood control pumps are typically used in flood control and drainage processes, requiring large-volume water discharge, which places high demands on the pump body's resistance to water pressure.

[0003] In the prior art, such as the application with application number CN202322146591.0, the subject of which is: A water pump testing device, wherein the testing mechanism includes a lifting plate, a fixed rod, a fixed ring, a sealing plug, an electric push rod, an air pipe and an air pump. The upper ends of the two electric push rods are fixedly connected to the bottom of both ends of the lifting plate. Two fixed rods are fixed in the middle of the bottom of the lifting plate. The lower ends of the two fixed rods are fixedly connected to the top of the fixed ring. The bottom of the fixed ring is rotatably connected to the top of the sealing plug. The sealing plug is located directly above the testing barrel. Technical issues

[0004] However, the testing devices mentioned in the existing technology cannot perform pressure tests on the inside of the water pump during the water pump testing process. Since the large-flow flood discharge during the flood control process can easily cause debris in the water to impact the pump body and damage it, it is necessary to design a pump body testing device for dynamic and static testing of large-flow flood control pumps. Technical solutions

[0005] The purpose of this invention is to provide a high-flow-rate flood control pump and its pump body testing device to solve the problems in the prior art.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A pump body testing device for a large flow flood control pump includes a base, a testing platform fixed on the base, a pump seat of the large flow flood control pump to be tested fixed on the testing platform, a pump casing fixed on the pump seat, an inlet on one side of the pump casing, and a support frame fixed on the base.

[0008] A cylinder is fixed on the upright frame, a triangular block is fixed to the output end of the cylinder, an installation plate is fixed on the upright frame, a cylinder is fixed to one side of the installation plate, a moving rod slides symmetrically on the cylinder, a compression spring is provided on the moving rod, one end of the compression spring is connected to the inner wall of the cylinder, a right-angle block is fixed to the other end, the right-angle block is connected to the moving rod, and a horizontal rod slides on the installation plate.

[0009] One end of the horizontal bar is provided with a conical surface, and the other end is provided with an inclined block. The inclined surface of the inclined block is slidably connected to the hypotenuse of the triangular block, and the conical surface is slidably connected to the hypotenuse of the right-angle block.

[0010] Furthermore, the testing platform is provided with a settling groove, a roller rotates on the testing platform, clamping rods slide on both sides of the testing platform, a motor is fixed at the bottom of the machine base, a double-ended lead screw is fixedly connected to the output end of the motor, two clamping rods are symmetrically threaded onto the double-ended lead screw, and a guide rod is fixed on the machine base, the guide rod being slidably connected to the clamping rods.

[0011] Furthermore, a cylinder is fixed on the clamping rod, a pressure plate is fixed to the output end of the cylinder, a motor is fixed inside the base, a cam is fixed to the output end of the motor, symmetrically distributed crossbars are fixed inside the sink, a swing arm rotates on the crossbars, a detection rod slides inside the sink, and a support spring is provided on the test rod.

[0012] The support spring is connected to the sink groove, and a lever is fixed to one side of the test rod. One end of the swing rod is provided with a straight groove, and the other end is located below the cam. The straight groove is slidably connected to the lever.

[0013] Furthermore, a movable frame is fixed on the base, a lead screw rotates on the movable frame, a guide rod is fixed on the movable frame, a motor is fixed on the movable frame, the output end of the motor is connected to the lead screw, a movable seat slides on the guide rod, the movable seat is threadedly connected to the lead screw, the movable seat is provided with a through groove, a U-shaped block slides in the through groove, and a detection frame is symmetrically fixed on the U-shaped block.

[0014] Furthermore, a motor four is fixed below the movable seat, and a gear is fixedly connected to the output end of the motor four. The movable seat is provided with a through groove, which is connected to the top of the through groove. A cylinder two is fixed on the through groove, and a pressure block is fixedly connected to the output end of the cylinder two. The pressure block slides in the through groove.

[0015] Furthermore, a driven rod is fixed to one side of the U-shaped block, a rack is fixed to the bottom of the driven rod, and locking grooves are arrayed on the driven rod. The locking grooves cooperate with the pressure block, and the gear is located below the U-shaped block, meshing with the rack.

[0016] Furthermore, a U-shaped frame is fixed on one side of the testing frame, and a V-shaped block is symmetrically fixed on the other side. The V-shaped block is symmetrically provided with sliding grooves. A motor five is fixed on the testing frame, and a lead screw two is fixed to the output end of the motor five. A top rod slides inside the U-shaped frame, and the top rod is threadedly connected to the lead screw two. Horizontal grooves are provided on both sides of the U-shaped frame.

[0017] Furthermore, one end of the top rod is symmetrically provided with mounting grooves, and a tension spring is fixedly connected in the mounting groove. Two detection rods slide inside the top rod, and the detection rods are connected to the tension springs. One end of the detection rod is fixed with a detection head, and the other end is provided with a horizontal groove. Sliding shafts are fixed on both sides of the detection rod, and the sliding shafts are slidably connected to the horizontal groove.

[0018] Furthermore, a fixed seat is fixed on the push rod, the fixed seat is threadedly connected to the lead screw, the push rod is slidably connected to the detection frame, a motor is fixed to one end of the push rod, a rotating shaft is fixedly connected to the output end of the motor, and two cams are fixedly connected to the output end of the rotating shaft. The two cams are staggered and slidably connected to the transverse groove.

[0019] Furthermore, the detection rod has rotatable grippers on both sides, and a guide shaft is fixed on the grippers. The guide shaft is slidably connected to the slide groove, and a pressure sensor is fixed on the detection head. Beneficial effects

[0020] The beneficial effects of this invention are:

[0021] 1. The pump body testing device for the large flow flood control pump of the present invention fixes the water pump by means of a testing platform on the base, which improves the stability of the water pump during the testing process. The testing platform is designed with a test rod for monitoring the strength of the pump base, and the pump base is tested to ensure the performance of the pump base.

[0022] 2. The pump body testing device for the large flow flood control pump of the present invention is also designed with top rods. Two top rods are located on both sides of the flood control pump. At the same time, detection rods that move alternately are slidably installed on the top rods. The two detection rods impact the surface of the flood control pump to test the dynamic and static balance of the flood control pump during operation and improve the overall performance of the pump.

[0023] 3. The pump body testing device of the large flow flood control pump of the present invention uses a moving rod located inside the pump casing to perform impact testing, so as to monitor the impact resistance inside the pump casing, avoid damage to the inner wall of the pump casing caused by foreign objects during actual flood control, and improve the product strength of the flood control pump. Attached Figure Description

[0024] The invention will now be further described with reference to the accompanying drawings.

[0025] Figure 1 is a structural schematic diagram of the high-flow flood control pump of the present invention;

[0026] Figure 2 is a structural schematic diagram of the high-flow flood control pump of the present invention;

[0027] Figure 3 is a schematic diagram of the pump body detection device of the present invention;

[0028] Figure 4 is a schematic diagram of the structure of the base of the present invention;

[0029] Figure 5 is a top view of the base of the present invention;

[0030] Figure 6 is a cross-sectional view at point AA in Figure 5 of this invention;

[0031] Figure 7 is a schematic diagram of the bottom structure of the base of the present invention;

[0032] Figure 8 is a schematic diagram of the mobile frame structure of the present invention;

[0033] Figure 9 is a schematic diagram of the U-shaped block structure of the present invention;

[0034] Figure 10 is a schematic diagram of the structure of the detection frame of the present invention;

[0035] Figure 11 is a schematic diagram of the top rod of the present invention;

[0036] Figure 12 is a schematic diagram of the top rod of the present invention;

[0037] Figure 13 is a schematic diagram of the structure of the support frame of the present invention;

[0038] Figure 14 is a rear view of the support frame of the present invention;

[0039] Figure 15 is a cross-sectional view at BB in Figure 14 of the present invention;

[0040] The attached diagram is described below:

[0041] 1. Pump base; 2. Machine base; 3. Moving frame; 4. Testing frame; 5. Vertical frame; 6. U-shaped block; 11. Pump casing; 12. Inlet; 13. Outlet pipe; 14. Drive motor; 21. Testing table; 22. Settling tank; 23. Roller; 24. Clamping rod; 25. Crossbar; 26. Swing rod; 27. Test rod; 28. Cam one; 29. ​​Double-ended lead screw; 30. Motor three; 31. Lead screw one; 32. Guide rod one; 33. Moving seat; 34. Through groove; 35. Gear; 36. Motor four; 37. Cylinder two; 38. Pressure block; 40. Guide shaft; 41. U-shaped frame; 42. Horizontal groove; 43. V-shaped block; 44. Slide groove; 45. Lead screw two; 46. Top rod; 48. Testing rod; 49. Gripper; 51. Cylinder 3; 52. Mounting plate; 53. Cylinder; 54. Moving rod; 55. Compression spring; 56. Right-angle block; 57. Triangular block; 58. Horizontal rod; 61. Rack; 62. Locking groove; 241. Cylinder 1; 242. Pressure plate; 261. Straight groove; 271. Support spring; 272. Lever; 280. Motor 2; 290. Motor 1; 291. Guide rod 2; 372. Cam 2; 450. Motor 5; 461. Sliding shaft; 462. Fixed seat; 463. Mounting groove; 464. Tension spring; 470. Motor 6; 471. Rotating shaft; 472. Cam 2; 481. Horizontal groove; 482. Detection head; 581. Conical surface; 582. Inclined block. Embodiments of the present invention

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] A high-flow flood control pump and its pump body testing device are disclosed. The pump body testing device is used to test the high-flow flood control pump. The pump body testing device uses vibration to test the dynamic balance inside the high-flow flood control pump and to test the performance of the pump body.

[0044] As shown in Figures 1 and 2, a high-flow flood control pump includes a pump base 1, a pump casing 11 fixedly mounted on the pump base 1, an inlet 12 on one side of the pump casing 11, an outlet pipe 13 fixedly mounted on the pump casing 11, and a drive motor 14 fixedly mounted on one side of the pump casing 11. The output end of the drive motor 14 is fixedly connected to the impeller shaft inside the pump casing 11 to drive the impeller to rotate.

[0045] As shown in Figure 3, a pump body testing device for a large-flow flood control pump includes a base 2, a movable frame 3 fixedly mounted on the base 2, a U-shaped block 6 slidably mounted on the movable frame 3, a symmetrically distributed testing frame 4 fixedly mounted on the U-shaped block 6, and a vertical frame 5 fixedly mounted on the base 2.

[0046] As shown in Figures 4, 5, 6, and 7, a testing platform 21 is fixedly mounted on the machine base 2. A groove 22 is provided on the testing platform 21. A roller 23 is rotatably mounted on the testing platform 21 for feeding and unloading materials. Clamping rods 24 are slidably mounted on both sides of the testing platform 21, and the clamping rods 24 pass through the machine base 2. A motor 290 is fixedly mounted at the bottom of the machine base 2. A double-ended lead screw 29 is fixedly connected to the output end of the motor 290. Two clamping rods 24 are symmetrically arranged on the double-ended lead screw 29, and the clamping rods 24 are threadedly connected to the double-ended lead screw 29. A guide rod 291 is fixedly mounted on the machine base 2 and located on one side of the double-ended lead screw 29. The guide rod 291 is slidably connected to the clamping rods 24.

[0047] A cylinder 241 is fixedly mounted on the clamping rod 24. A pressure plate 242 is fixedly connected to the output end of the cylinder 241. The pressure plate 242 presses firmly against the pump seat 1 located on the testing table 21. A motor 280 is fixedly mounted inside the machine base 2. A cam 28 is fixedly connected to the output end of the motor 280. A crossbar 25 is fixedly installed inside the groove 22 and on both sides of the cam 28. A rocker arm 26 is rotatably mounted on the crossbar 25. A straight groove 261 is opened at one end of the rocker arm 26. A lever 272 is slidably mounted inside the straight groove 261.

[0048] A vertically mounted test rod 27 is slidably installed inside the settling tank 22. A support spring 271 is fitted on the test rod 27. One end of the support spring 271 is fixedly connected to the test rod 27, and the other end is fixedly connected to the settling tank 22. A lever 272 is fixedly connected to one side of the test rod 27. The other end of the swing arm 26 is located below the cam 28. When the cam 28 rotates, it can control the swing arm 26 to rotate on the crossbar 25, thereby controlling the vertical movement of the test rod 27, so that the test rod 27 impacts the pump seat 1 for testing.

[0049] As shown in Figure 8, a lead screw 31 is rotatably mounted on the movable frame 3, and a guide rod 32 is fixedly mounted on the movable frame 3. Both the guide rod 32 and the lead screw 31 are vertically arranged. A motor 30 is fixedly installed on the movable frame 3, and the output end of the motor 30 is fixedly connected to one end of the lead screw 31. A movable seat 33 is slidably mounted on the guide rod 32, and a through groove 34 is opened on the movable seat 33. A U-shaped block 6 is slidably mounted in the through groove 34. The movable seat 33 is threadedly connected to the lead screw 31.

[0050] A motor 36 is fixedly installed below the movable base 33. A gear 35 is fixedly connected to the output end of the motor 36. The gear 35 is located below the U-shaped block 6. A through groove is opened on the movable base 33. The through groove is located above the through groove 34 and communicates with the through groove 34. A cylinder 37 is installed on the through groove. The cylinder 37 is fixedly installed above the movable base 33. A pressure block 38 is fixedly connected to the output end of the cylinder 37. The pressure block 38 moves vertically in the through groove.

[0051] As shown in Figure 9, a driven rod is fixedly connected to one side of the U-shaped block 6. A rack 61 is fixedly provided at the bottom of the driven rod. An array of locking grooves 62 are provided on the driven rod. The locking grooves 62 are located below the pressure block 38. When the cylinder 37 drives the pressure block 38, the pressure block 38 locks the locking grooves 62, fixing the position of the U-shaped block 6. The gear 35 is located below the rack 61 and meshes with the rack 61.

[0052] As shown in Figures 10, 11, and 12, detection frames 4 are fixedly installed at both ends of the U-shaped block 6. A U-shaped frame 41 is fixedly installed on one side of the detection frame 4, and V-shaped blocks 43 are symmetrically distributed on the other side. Sliding grooves 44 are symmetrically opened on the V-shaped blocks 43. A motor 450 is fixedly installed on the detection frame 4. A lead screw 45 is fixedly connected to the output end of the motor 450. A push rod 46 is slidably installed inside the U-shaped frame 41. The push rod 46 is threadedly connected to the lead screw 45.

[0053] The U-shaped frame 41 has horizontal grooves 42 on both sides, and the top rod 46 has symmetrically distributed mounting grooves 463 at one end. The mounting grooves 463 are located on the upper and lower sides of the top rod 46. A tension spring 464 is fixedly connected in the mounting groove 463. Two horizontally arranged detection rods 48 are slidably arranged in the top rod 46. The detection rods 48 are fixedly connected to the ends of the tension springs 464. A detection head 482 is fixedly arranged at one end of the detection rod 48. A horizontal groove 481 is opened at the other end of the detection rod 48. Sliding shafts 461 are fixedly arranged on both sides of the detection rod 48. The sliding shafts 461 are slidably connected to the horizontal grooves 42.

[0054] A fixed seat 462 is fixedly provided on the push rod 46. The fixed seat 462 is threadedly connected to the lead screw 45. The push rod 46 is slidably connected to the detection frame 4. A motor 470 is fixedly provided at one end of the push rod 46. A rotating shaft 471 is fixedly connected to the output end of the motor 470. Two cams 472 are fixedly connected to the output end of the rotating shaft 471. The two cams 472 are staggered. The cams 472 are slidably connected to the transverse groove 481. The cams 472 push the detection rod 48 to move.

[0055] The detection rod 48 has rotatable grippers 49 on both sides, and a guide shaft 40 is fixed on the grippers 49. The guide shaft 40 is slidably connected to the slide groove 44 to guide the movement of the grippers 49. The top rod 46 moves to drive the grippers 49 to clamp the pump body.

[0056] In this embodiment, a pressure sensor is fixed on the detection head 482. The pressure sensor is model FSR-A406.

[0057] As shown in Figures 13, 14, and 15, a cylinder 3 51 is fixedly installed on the upright frame 5. A triangular block 57 is fixedly installed at the output end of the cylinder 3 51. An mounting plate 52 is fixedly installed on the upright frame 5. A cylinder 53 is fixedly connected to one side of the mounting plate 52. Symmetrically distributed moving rods 54 are slidably installed on the cylinder 53. A compression spring 55 is sleeved on the moving rod 54. One end of the compression spring 55 is fixedly connected to the inner wall of the cylinder 53, and the other end is fixedly connected to a right-angle block 56. The right-angle block 56 is fixedly connected to the end of the moving rod 54. A horizontal rod 58 is slidably installed on the mounting plate 52 and inside the cylinder 53.

[0058] One end of the horizontal rod 58 is provided with a conical surface 581, and the other end is provided with an inclined block 582. The inclined surface of the inclined block 582 is slidably connected to the inclined side of the triangular block 57. The horizontal rod 58 is moved horizontally by the up and down movement of the triangular block 57. When the horizontal rod 58 moves towards the right-angle block 56, the moving rod 54 is pushed to slide outward of the cylinder 53 by the slidable connection between the conical surface 581 and the inclined side of the right-angle block 56. This causes the moving rod 54 to apply pressure to the inner wall of the inlet 12, thus testing the pressure resistance and impact resistance of the inner wall of the pump body.

[0059] The working principle is as follows:

[0060] By loading the assembled high-flow flood control pump onto the base 2, the pump base 1 slides along the test platform 21. The roller 23 transports the pump base 1 to a position above the test platform 21 where the high-flow flood control pump is located. At this time, the double-headed screw 29 rotates to control the two clamping rods 24 to move towards each other, clamping and fixing the pump base 1. When the pump base 1 is clamped, the inlet 12 is located outside the cylinder 53. Then, pressure can be output through the cylinder 241 to make the pressure plate 242 be located on the pump base 1, locking the pump base 1 and preventing it from loosening.

[0061] Detection Method 1:

[0062] The rotation of cam 28 is controlled by motor 280. Cam 28 can press down one end of rocker arm 26, causing rocker arm 26 to rotate intermittently on crossbar 25. Then test rod 27 moves down a small distance. Test rod 27 impacts pump seat 1 to test the strength of pump seat 1. After the test, support spring 271 drives test rod 27 to reset.

[0063] Detection Method Two:

[0064] The gear 35 on the movable frame 3 meshes with the rack 61, controlling the U-shaped block 6 to translate, so that the detection frame 4 is located on both sides of the pump housing 11. The screw 31 rotates to drive the movable seat 33 and the U-shaped block 6 on it to move vertically, moving the detection position vertically, and then performing the detection operation. This includes adjusting the gripper 49 at the end of the push rod 46 to approach the pump housing 11 by rotating the screw 45, so that the gripper 49 clamps the area outside the detection position of the pump housing 11, positioning the detection area. Then, the motor 470 drives the two cams 372 to rotate, alternately pushing the two detection rods 48 to move, so that the detection head 482 at the end of the detection rod 48 performs a dynamic and static balance test on the pump housing 11, detecting the balance effect of the pump housing 11 and its internal parts.

[0065] Detection Method 3:

[0066] The cylinder 51 outputs thrust, causing the triangular block 57 to move up and down, which in turn drives the horizontal rod 58 to move horizontally. When the horizontal rod 58 moves toward the right-angle block 56, it slides and connects with the hypotenuse of the cone surface 581 and the right-angle block 56, causing the moving rod 54 to gradually slide toward the outside of the cylinder 53. The moving rod 54 applies pressure to the inner wall of the inlet 12, testing the pressure resistance and impact resistance of the inner wall of the inlet 12 of the pump casing 11, and comprehensively testing the performance of the large-flow flood control pump.

[0067] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A pump body testing device for a large-flow flood control pump, comprising a base (2), a testing platform (21) fixedly mounted on the base (2), a pump seat (1) of the large-flow flood control pump to be tested fixedly mounted on the testing platform (21), a pump casing (11) fixedly mounted on the pump seat (1), and an inlet (12) provided on one side of the pump casing (11), characterized in that, A stand (5) is fixed on the base (2); A cylinder (51) is fixed on the support frame (5). A triangular block (57) is fixed at the output end of the cylinder (51). A mounting plate (52) is fixed on the support frame (5). A cylinder (53) is fixed to one side of the mounting plate (52). A moving rod (54) slides symmetrically on the cylinder (53). A compression spring (55) is provided on the moving rod (54). One end of the compression spring (55) is connected to the inner wall of the cylinder (53), and the other end is fixed to a right-angle block (56). The right-angle block (56) is connected to the moving rod (54). A horizontal rod (58) slides on the mounting plate (52). One end of the horizontal bar (58) is provided with a conical surface (581) and the other end is provided with an inclined block (582). The inclined surface of the inclined block (582) is slidably connected to the inclined side of the triangular block (57), and the conical surface (581) is slidably connected to the inclined side of the right-angle block (56).

2. The pump body testing device for a large-flow flood control pump according to claim 1, characterized in that, The testing platform (21) is provided with a sinker (22), a roller (23) rotates on the testing platform (21), and clamping rods (24) slide on both sides of the testing platform (21). A motor (290) is fixed at the bottom of the machine base (2), and a double-ended lead screw (29) is fixed at the output end of the motor (290). The two clamping rods (24) are symmetrically threaded onto the double-ended lead screw (29). A guide rod (291) is fixed on the machine base (2), and the guide rod (291) is slidably connected to the clamping rods (24).

3. The pump body testing device for a large-flow flood control pump according to claim 2, characterized in that, A cylinder (241) is fixed on the clamping rod (24), and a pressure plate (242) is fixed to the output end of the cylinder (241). A motor (280) is fixed inside the base (2), and a cam (28) is fixed to the output end of the motor (280). A symmetrically distributed crossbar (25) is fixed inside the sink (22), and a swing arm (26) rotates on the crossbar (25). A detection rod slides inside the sink (22), and a support spring (271) is provided on the test rod (27). The support spring (271) is connected to the sink (22), and a lever (272) is fixedly connected to one side of the test rod (27). One end of the swing rod (26) is provided with a straight groove (261), and the other end is located below the cam (28). The straight groove (261) is slidably connected to the lever (272).

4. The pump body testing device for a large-flow flood control pump according to claim 3, characterized in that, A movable frame (3) is fixed on the base (2). A lead screw (31) rotates on the movable frame (3). A guide rod (32) is fixed on the movable frame (3). A motor (30) is fixed on the movable frame (3). The output end of the motor (30) is connected to the lead screw (31). A movable seat (33) slides on the guide rod (32). The movable seat (33) is threadedly connected to the lead screw (31). A through groove (34) is provided on the movable seat (33). A U-shaped block (6) slides in the through groove (34). A detection frame (4) is symmetrically fixed on the U-shaped block (6).

5. The pump body testing device for a large-flow flood control pump according to claim 4, characterized in that, The movable seat (33) is fixed with a motor four (36) below it. The output end of the motor four (36) is fixed with a gear (35). The movable seat (33) is provided with a through groove, which is connected to the top of the through groove (34). The through groove is fixed with a cylinder two (37). The output end of the cylinder two (37) is fixed with a pressure block (38), which slides in the through groove.

6. The pump body testing device for a large-flow flood control pump according to claim 5, characterized in that, A driven rod is fixed to one side of the U-shaped block (6), and a rack (61) is fixed to the bottom of the driven rod. Locking grooves (62) are arranged on the driven rod. The locking grooves (62) cooperate with the pressure block (38). The gear (35) is located below the U-shaped block (6) and meshes with the rack (61).

7. The pump body testing device for a large-flow flood control pump according to claim 4, characterized in that, A U-shaped frame (41) is fixed on one side of the testing frame (4), and a V-shaped block (43) is symmetrically fixed on the other side. A sliding groove (44) is symmetrically provided on the V-shaped block (43). A motor (450) is fixed on the testing frame (4). A lead screw (45) is fixed to the output end of the motor (450). A top rod (46) slides inside the U-shaped frame (41). The top rod (46) is threadedly connected to the lead screw (45). Horizontal grooves (42) are provided on both sides of the U-shaped frame (41).

8. The pump body testing device for a large-flow flood control pump according to claim 7, characterized in that, One end of the top rod (46) is symmetrically provided with mounting grooves (463), and a tension spring (464) is fixedly connected in the mounting groove (463). Two detection rods (48) slide in the top rod (46). The detection rods (48) are connected to the tension springs (464). One end of the detection rod (48) is fixed with a detection head (482), and the other end is provided with a horizontal groove (481). Sliding shafts (461) are fixed on both sides of the detection rod (48), and the sliding shafts (461) are slidably connected to the horizontal grooves (42).

9. The pump body testing device for a large-flow flood control pump according to claim 8, characterized in that, A fixed seat (462) is fixed on the top rod (46). The fixed seat (462) is threadedly connected to the second lead screw (45). The top rod (46) is slidably connected to the detection frame (4). A motor six (470) is fixed at one end of the top rod (46). A rotating shaft (471) is fixedly connected to the output end of the motor six (470). Two cams two (472) are fixedly connected to the output end of the rotating shaft (471). The two cams two (472) are staggered and slidably connected to the transverse groove (481).

10. The pump body testing device for a large-flow flood control pump according to claim 9, characterized in that, The detection rod (48) has rotatable grippers (49) on both sides, and a guide shaft (40) is fixed on the grippers (49). The guide shaft (40) is slidably connected to the slide groove (44), and a pressure sensor is fixed on the detection head (482).

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