A testing equipment for circulating water pump production

Abstract

The present invention relates to the technical field of water pump air tightness detection, a detection device for circulating water pump production, comprising a transport line and a water pump body located on the transport line, and also comprising: a detection table, the detection table is located at the end of the transport line, a detection box is installed on the top of the detection table, a clamping assembly is installed on the top of the detection box, a water tank is arranged on the top of the detection box, a first side groove is provided on the inner side wall of the water tank, and a mounting groove is provided on the inner wall of the first side groove. The water pump body is transported by the transport line and delivered to the detection table for detection. During the detection, the water pump body is slowly placed in the water tank through the clamping assembly. Water for detecting the air tightness of the water pump body is stored in the water tank, and the water level line is lower than the bottom wall of the first side groove, so that the water in the water tank can be prevented from moving into the first side groove. The air tightness test is performed when the water pump body is partially immersed in the liquid, so as to reliably detect any possible leakage points.

Description

Technical Field

[0001] The invention relates to the technical field of air tightness detection of circulating water pumps, and in particular to detection equipment for producing circulating water pumps. Background Art

[0002] Circulating water pumps are widely used in industry and life, especially in the fields of water supply, cooling, heating and sewage treatment. However, in the production process of circulating water pumps, in order to ensure their performance and quality, a series of tests must be carried out. These tests mainly include air tightness test, flow and pressure test, operation stability test, etc.

[0003] In Chinese patent application 202210081712.5, the technical field of water pump cavity air tightness detection is disclosed, in particular, a water pump cavity air tightness detection device, including a fixed seat, a support plate is fixed on the top surface of the fixed seat, and one side of the support plate is provided with a clamping sealing mechanism for clamping and sealing both sides of the water pump casing, a groove is provided on the top surface of the fixed seat, the inner bottom surface of the groove is inclined, and an insertion hole is provided on the inner bottom surface of the groove, and an inflation detection mechanism for inflation detection inside the water pump casing is provided inside the insertion hole; a water adding mechanism for automatically adding an aqueous solution to the inside of the groove is provided on one side of the groove; during the detection process, this scheme is conducive to timely determining whether there is a leakage at the connection position between the water pump casing and the inflation port by observing whether bubbles are generated at the connection position between the water pump casing and the inflation port, thereby preventing inaccurate detection due to leakage at the connection position between the water pump casing and the inflation port.

[0004] At present, the existing circulating water pump air tightness detection equipment generally has the following problems: the structure is complex and it is difficult to detect the air tightness of the water pump more accurately. At the same time, the detection efficiency is low and cannot meet the needs of large-scale production. Therefore, a circulating water pump production detection equipment is provided to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a detection device for producing a circulating water pump.

[0006] In order to solve the above technical problems, the present invention provides a detection device for circulating water pump production, comprising a transport line and a water pump body located on the transport line, and further comprising:

[0007] A testing platform, the testing platform is located at the end of the transport line, a testing box is installed on the top of the testing platform, a clamping assembly is installed on the top of the testing box, a water tank is arranged on the top of the testing box, a first side tank is provided on the inner side wall of the water tank, a mounting tank is provided on the inner wall of the first side tank, a liquid for detecting the air tightness of the water pump body is stored in the inner bottom of the testing box, and the height of the liquid is lower than the inner bottom wall of the first side tank;

[0008] A detection unit, the detection unit comprising an exhaust pipe opened on the inner side wall of the first side groove and an air pump installed inside the detection box, a support pipe is installed inside the first side groove, a first spring is sleeved on the support pipe, and the bottom of the support pipe is inserted into the exhaust pipe;

[0009] The sealing part includes a first hydraulic cylinder installed in the installation groove and a sealing ring installed on the support tube, wherein

[0010] When the water pump body moves toward the bottom of the water tank, the first hydraulic cylinder is used to push the sealing ring to seal the water inlet and outlet of the water pump body, and at the same time the air pump automatically passes gas from the sealing ring into the water pump body.

[0011] Furthermore, the clamping assembly includes a fixed frame fixed on the detection box and a movable frame that can move up and down along the fixed frame, and two clamping plates installed on the movable frame, vertical grooves are opened on both sides of the fixed frame, and the bottom of the vertical grooves extends into the water tank, a second hydraulic cylinder is installed on the fixed frame, the movable frame is fixed to the bottom of the second hydraulic cylinder, and the two sides of the movable frame can move up and down in the vertical grooves.

[0012] Furthermore, a fixed plate is fixed on one side of the movable frame, a second side groove is opened on one side of the fixed plate, both ends of the second side groove are opened, one end of the clamping plate is hinged in the second side groove, a second spring is installed between the side wall of the clamping plate and the second side groove, the two clamping plates are in an eight-shape, and the clamping plates can be folded around the hinge to be parallel to the second side groove.

[0013] Furthermore, a rotating shaft is rotatably installed on the other side of the mobile frame, a roller is installed on one side of the rotating shaft, the roller contacts the inner wall of the vertical groove, a steel rope is fixed on the rotating shaft, and the other end of the steel rope passes through the fixing plate and is fixed on the clamping plate, wherein

[0014] When the rotating shaft rotates to reel in the steel rope, the steel rope pulls the clamping plate to rotate around the hinge point.

[0015] Furthermore, a sliding block is fixed on the top of one side of the sealing ring, a sliding groove is provided at the bottom of the sliding block, and a clamping block is installed on the top of the supporting tube, and the clamping block can move left and right along the sliding groove.

[0016] Furthermore, an air inlet is provided at the inner top of the slide groove, and an air outlet is provided at one side of the sealing ring, and the air inlet is connected to the air outlet via an air guide pipe.

[0017] Furthermore, a push rod is provided on one side of the first hydraulic cylinder, a clamping groove is provided in the middle of the push rod, and the push rod and the center of the sealing ring are located on the same center line, wherein

[0018] When the first hydraulic cylinder pushes the push rod to insert the sealing ring into the water inlet and the water outlet, the sealing ring moves from the first side groove to the water tank, and the top of the support pipe moves to communicate with the air inlet.

[0019] Furthermore, a baffle is installed inside the exhaust pipe, a column hole is provided in the middle of the baffle, a plurality of rod holes are opened around the column hole, an insertion rod is installed inside the rod hole, a third spring is sleeved on the surface of the insertion rod, a connecting plate is installed at the bottom of the insertion rod, a sealing column is fixed at the middle position of the connecting plate, a branch pipe is provided inside the baffle, one end of the branch pipe is connected to the column hole, and the other end is located at the bottom of the baffle.

[0020] Furthermore, a grabbing platform is installed on one side of the detection platform, a slide rail is installed on the top of the grabbing platform, a slide plate is installed on the slide rail, and a grabbing claw is installed on one end of the slide plate.

[0021] Furthermore, a motor is installed on the top of the water pump body, and a snap ring is fixed on the motor housing.

[0022] The beneficial effects of the present invention are:

[0023] The water pump body is transported via a transport line and delivered to a testing station for testing. During the testing, the water pump body is slowly placed into a water tank through a clamping assembly. The water tank contains water for testing the air tightness of the water pump body. At the same time, the water level is lower than the bottom wall of the first side tank, so that the water in the water tank is prevented from moving into the first side tank. The air tightness test is performed when the water pump body is partially immersed in liquid, thereby reliably detecting any possible leakage points.

[0024] When the clamping plate moves downward along the vertical groove, the roller contacts the side wall of the vertical groove and drives the rotating shaft to rotate. When the rotating shaft rotates, the steel rope is pulled to reel in. At this time, the clamping plate rotates around the hinge point, and its angle continues to expand. When it moves to the water tank position, the roller separates from the side wall, and the second spring pushes the clamping plate to reset, so that the four left and right supporting plates are in a quadrilateral, which clamps the water pump body. This can effectively adapt to water pump bodies of different sizes and models, and is convenient for transferring the water pump body on the transportation line. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Figure 1 is a stereogram of the present invention;

[0027] Figure 2 is a three-dimensional diagram of the detection platform of the present invention;

[0028] Figure 3 is a half-section view of the test bench of the present invention;

[0029] Figure 4 It is a schematic diagram of the front cross-sectional structure of the detection platform of the present invention;

[0030] Figure 5 is a perspective view of the clamping assembly of the present invention;

[0031] Figure 6 is a three-dimensional diagram of a sealing ring of the present invention;

[0032] Figure 7 is a three-dimensional diagram of a discharging portion of a preferred embodiment of a discharging head of the present invention;

[0033] Figure 8 is a three-dimensional diagram of a discharging portion of a preferred embodiment of a discharging head of the present invention;

[0034] Fig. 9 It is a three-dimensional view of the water pump body of the present invention.

[0035] In the figure:

[0036] 1. Transportation lines;

[0037] 2. Water pump body; 21. Motor; 22. Snap ring;

[0038] 31. Detection box; 32. Clamping assembly; 321. Fixed frame; 322. Mobile frame; 323. Clamping plate; 324. Vertical slot; 325. Second hydraulic cylinder; 326. Fixed plate; 327. Second side slot; 328. Second spring; 329. Rotating shaft; 3210. Roller; 3211. Steel rope; 33. Water tank; 34. First side slot; 35. Mounting slot;

[0039] 4. Detection unit; 41. Exhaust pipe; 42. Air pump; 43. Support pipe; 44. First spring;

[0040] 51. first hydraulic cylinder; 52. sealing ring; 53. slider; 54. slide groove; 55. clamping block; 56. air inlet; 57. air outlet; 58. air guide tube; 59. push rod; 510. clamping groove;

[0041] 61. column hole; 62. rod hole; 63. plug rod; 64. connecting plate; 65. sealing column; 66. branch pipe; 67. third spring;

[0042] 7. Grabbing table; 71. Slide rail; 72. Slide plate; 73. Grabbing claw. DETAILED DESCRIPTION

[0043] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only showing the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention.

[0044] As Figure 1-9 shown, a detection device for the production of a circulating water pump according to the present invention includes a transport line 1 and a circulating water pump body 2 located on the transport line 1, and further includes: a detection table located at the end of the transport line 1, a detection box 31 is installed on the top of the detection table, a clamping assembly 32 is installed on the top of the detection box 31, a water tank 33 is provided on the top of the detection box 31, a first side groove 34 is opened on the inner side wall of the water tank 33, and a mounting groove 35 is opened on the inner wall of the first side groove 34. There is a liquid for detecting the airtightness of the water pump body 2 at the inner bottom of the detection box 31, and the liquid level is lower than the inner bottom wall of the first side groove 34.

[0045] The water pump body 2 is transported by the transport line 1 and conveyed to the detection table for detection. When detecting, the water pump body 2 is slowly placed into the water tank 33 through the clamping assembly 32. There is water in the water tank 33 for detecting the airtightness of the water pump body 2, and at the same time, the water level line is lower than the inner bottom wall of the first side groove 34, so as to prevent the water in the water tank 33 from moving into the first side groove 34. The airtightness test is carried out in the state where the water pump body 2 is partially immersed in the liquid, so as to reliably detect any possible air leakage points.

[0046] The clamping assembly 32 includes a fixed frame 321 fixed on the detection box 31, a movable frame 322 that can move up and down along the fixed frame 321, and two clamping plates 323 installed on the movable frame 322. Vertical grooves 324 are opened on both sides of the fixed frame 321, and the bottom of the vertical grooves 324 extends into the water tank, and the diameter of the vertical grooves 324 located in the water tank 33 is larger than the diameter of the vertical grooves 324 located on the fixed frame 321, so that when the roller 3210 moves to the position of the water tank 33, it does not contact the vertical grooves 324 in the part of the water tank 33. A second hydraulic cylinder 325 is installed on the fixed frame 321, the movable frame 322 is fixed at the bottom of the second hydraulic cylinder 325, and both sides of the movable frame 322 can move up and down in the vertical grooves 324.

[0047] By starting the second hydraulic cylinder 325 to drive the movable frame 322 to move up and down, the shape of the movable frame 322 is similar to that of the fixed frame 321, both are in the shape of a "冂", and the movable frame 322 can move along the vertical groove 324 into the water tank 33.

[0048] A fixed plate 326 is fixed to one side of the movable frame 322, and a second side groove 327 is opened on one side of the fixed plate 326. The second side groove 327 is opened at both ends. One end of the clamping plate 323 is hinged in the second side groove 327, and a second spring 328 is installed between the side wall of the clamping plate 323 and the second side groove 327. The two clamping plates 323 are in an eight-shaped shape, and the clamping plates 323 can be folded around the hinge to be parallel to the second side groove 327. A rotating shaft 329 is rotatably installed on the other side of the movable frame 322, and a roller 3210 is installed on one side of the rotating shaft 329. The roller 3210 contacts the inner wall of the vertical groove 324, and a steel rope 3211 is fixed on the rotating shaft 329. The other end of the steel rope 3211 passes through the fixed plate 326 and is fixed on the clamping plate 323. When the rotating shaft 329 rotates, the steel rope 3211 is wound up, and the steel rope 3211 pulls the clamping plate 323 to rotate around the hinge point.

[0049] When the clamping plate 323 is in the initial position, it is in an eight-shaped shape. When it moves downward along the vertical groove 324, the roller 3210 contacts the side wall of the vertical groove 324 and drives the rotating shaft 329 to rotate. When the rotating shaft 329 rotates, it pulls the steel rope 3211 to reel it in. At this time, the clamping plate 323 rotates around the hinge point, and its angle continues to expand. When it moves to the position of the water tank 33, the roller 3210 disengages from the side wall, and the second spring 328 pushes the clamping plate 323 to reset, so that the four left and right supporting plates are in a quadrilateral, which clamps the water pump body 2. This can effectively adapt to water pump bodies 2 of different sizes and models, and is convenient for transporting the water pump body 2 on the transport line 1.

[0050] During inspection, the water pump body 2 is moved to above the water tank 33 by grabbing the grip 73. At this time, the second hydraulic cylinder 325 is started, and the second hydraulic cylinder 325 pushes the movable plate to move downward. The movable plate drives the roller 3210 to rotate, and the steel rope 3211 is pulled by the roller 3210 to reel in and open the angle of the supporting plate. When the roller 3210 moves to the position of the water tank 33, the steel rope 3211 is released, and the supporting plate is reset at the same time to clamp the water pump body 2. The automated clamping and releasing process makes the operation easier, without the need for manual intervention, and improves work efficiency. At the same time, the clamping plate 323 forms a quadrilateral structure when clamping the water pump body 2, providing a more stable support to prevent the water pump from shaking during the inspection process.

[0051] The sealing part includes a first hydraulic cylinder 51 installed in the installation groove 35 and a sealing ring 52 installed on the support tube 43, wherein when the water pump body 2 moves toward the bottom of the water groove 33, the first hydraulic cylinder 51 is used to push the sealing ring 52 to seal the water inlet and outlet of the water pump body 2, and at the same time, the air pump 42 automatically passes the gas from the sealing ring 52 into the water pump body 2, a slider 53 is fixed to the top of one side of the sealing ring 52, a slide groove 54 is opened at the bottom of the slider 53, and a block 55 is installed on the top of the support tube 43, and the block 55 can move left and right along the slide groove 54.

[0052] Since it is necessary to close the water inlet and outlet of the water pump when the water pump body 2 is not in contact with water, the water pump body 2 is driven by the second hydraulic cylinder 325 to move to the bottom of the water tank 33. When it moves to the position of the sealing ring 52, the first hydraulic cylinder 51 is started. The first hydraulic cylinder 51 pushes the sealing ring 52 to move toward the water inlet and the water outlet. At the same time, the block 55 on the top of the support tube 43 slides along the slide groove 54, and the sealing ring 52 moves completely from the inside of the first side groove 34 to the water tank 33 and seals it.

[0053] A push rod 59 is disposed on one side of the first hydraulic cylinder 51 , a clamping groove 510 is disposed in the middle of the push rod 59 , and the push rod 59 and the sealing ring 52 are located on the same center line.

[0054] The clamping groove 510 can prevent the support tube 43 from blocking its movement. At the same time, the push rod 59 and the center of the sealing ring 52 are located on the same center line, so the sealing ring 52 can be inserted into the water pump body 2 more stably. When the water pump body 2 moves to the bottom of the water tank 33, the sealing ring 52 can be completely moved into the water.

[0055] The detection part 4 includes an exhaust pipe 41 opened on the inner wall of the first side groove 34 and an air pump 42 installed inside the detection box 31. A support pipe 43 is installed inside the first side groove 34. A first spring 44 is sleeved on the support pipe 43, and the bottom of the support pipe 43 is inserted into the exhaust pipe 41; an air inlet 56 is opened at the inner top of the slide groove 54, and an air outlet 57 is opened on one side of the sealing ring 52. The air inlet 56 and the air outlet 57 are connected through an air guide pipe 58. When the first hydraulic cylinder 51 pushes the push rod 59 to insert the sealing ring 52 into the water inlet and the water outlet, the sealing ring 52 moves from the first side groove 34 to the water tank 33, and the top of the support pipe 43 moves to communicate with the air inlet 56.

[0056] When the water pump body 2 moves to the bottom of the water tank 33, the support tube 43 is compressed and inserted into the exhaust pipe 41. At the same time, the air pump 42 is started to inflate the exhaust pipe 41 and the support tube 43. The gas enters the air guide tube 58 through the support tube 43 and enters the water pump body 2 through the air outlet 57. At this time, except for the position of the motor 21 which is located above the water surface, the rest of the water pump body 2 is in the water. By observing whether bubbles are generated, it is judged whether there is an airtightness problem of the water pump body 2. The judgment method is simple, convenient and more accurate.

[0057] A baffle is installed inside the exhaust pipe 41, a column hole 61 is provided in the middle of the baffle, a plurality of rod holes 62 are opened around the column hole 61, an insertion rod 63 is installed inside the rod hole 62, a connecting plate 64 is installed at the bottom of the insertion rod 63, a sealing column 65 is fixed at the middle position of the connecting plate 64, a third spring 67 is sleeved on the surface of the insertion rod 63, one end of the third spring 67 is installed at the bottom of the baffle, and the other end is installed on the connecting plate 64. A branch pipe 66 is provided inside the baffle, one end of the branch pipe 66 is connected to the column hole 61, and the other end is located at the bottom of the baffle.

[0058] When the support tube 43 is inserted to the bottom of the exhaust pipe 41, the support tube 43 squeezes the insertion rod 63 and moves downward along the rod hole 62. At the same time, the connecting plate 64 moves downward to drive the sealing column 65 to move downward. When the sealing column 65 opens the branch pipe 66, the gas is discharged through the branch pipe 66 and enters the support tube 43.

[0059] A grabbing platform 7 is installed on one side of the testing platform, a slide rail 71 is installed on the top of the grabbing platform 7, a slide plate 72 is installed on the slide rail 71, a grabbing claw 73 is installed at one end of the slide plate 72, a motor 21 is installed on the top of the water pump body 2, and a retaining ring 22 is fixed on the outer shell of the motor 21.

[0060] The slide plate 72 can move left and right along the slide rail 71, and the grabbing claw 73 can be used to clamp the uppermost snap ring 22 of the motor 21 and move it. When it moves above the water tank 33, the clamping plate 323 clamps the snap ring 22 located below the motor 21 housing.

[0061] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A testing device for circulating water pump production, comprising a transport line (1) and a water pump body (2) located on the transport line (1), characterized in that: Also includes: A testing platform, the testing platform being located at an end of the transport line (1), a testing box (31) being installed on the top of the testing platform, a clamping assembly (32) being installed on the top of the testing box (31), a water tank (33) being arranged on the top of the testing box (31), a first side tank (34) being provided on the inner side wall of the water tank (33), a mounting tank (35) being provided on the inner wall of the first side tank (34), a liquid for testing the air tightness of the water pump body (2) being stored on the inner bottom of the testing box (31), and the height of the liquid being lower than the inner bottom wall of the first side tank (34); A detection part (4), the detection part (4) comprising an exhaust pipe (41) provided on an inner side wall of the first side groove (34) and an air pump (42) installed inside the detection box (31); a support pipe (43) is installed inside the first side groove (34); a first spring (44) is sleeved on the support pipe (43); and a bottom of the support pipe (43) is inserted into the exhaust pipe (41); a sealing portion, the sealing portion comprising a first hydraulic cylinder (51) installed in the installation groove (35) and a sealing ring (52) installed on the support tube (43), wherein When the water pump body (2) moves toward the bottom of the water tank (33), the first hydraulic cylinder (51) is used to push the sealing ring (52) to seal the water inlet and the water outlet of the water pump body (2), and at the same time, the air pump (42) automatically passes gas from the sealing ring (52) into the water pump body (2); A slider (53) is fixed to the top of one side of the sealing ring (52), a slide groove (54) is provided at the bottom of the slider (53), a clamping block (55) is installed on the top of the support tube (43), and the clamping block (55) can move left and right along the slide groove (54); An air inlet (56) is provided at the inner top of the slide groove (54), and an air outlet (57) is provided at one side of the sealing ring (52), and the air inlet (56) and the air outlet (57) are connected via an air guide pipe (58); A push rod (59) is provided on one side of the first hydraulic cylinder (51), a clamping groove (510) is provided in the middle of the push rod (59), and the center of the push rod (59) and the sealing ring (52) are located on the same center line, wherein When the first hydraulic cylinder (51) pushes the push rod (59) to insert the sealing ring (52) into the water inlet and the water outlet, the sealing ring (52) moves from the first side groove (34) into the water tank (33), and the top of the support pipe (43) moves to communicate with the air inlet (56); A baffle is installed inside the exhaust pipe (41), a column hole (61) is provided in the middle of the baffle, a plurality of rod holes (62) are opened around the column hole (61), an insertion rod (63) is installed inside the rod hole (62), a third spring (67) is sleeved on the surface of the insertion rod (63), a connecting plate (64) is installed at the bottom of the insertion rod (63), a sealing column (65) is fixed at the middle position of the connecting plate (64), a branch pipe (66) is provided inside the baffle, one end of the branch pipe (66) is communicated with the column hole (61), and the other end is located at the bottom of the baffle; When the support tube (43) is inserted to the bottom of the exhaust pipe 41, the support tube (43) squeezes the insertion rod 63 to move downward along the rod hole (62), and at the same time, the connection plate (64) moves downward to drive the sealing column (65) to move downward. When the sealing column (65) opens the outlet of the branch tube (66), the gas is discharged through the branch tube (66) and enters the support tube (43).

2. A circulating water pump production detection equipment as claimed in claim 1, characterized in that: The clamping assembly (32) comprises a fixed frame (321) fixed on the detection box (31), a movable frame (322) movable up and down along the fixed frame (321), and two clamping plates (323) mounted on the movable frame (322); vertical grooves (324) are provided on both sides of the fixed frame (321); the bottom of the vertical grooves (324) extends into the water tank (33); a second hydraulic cylinder (325) is mounted on the fixed frame (321); the movable frame (322) is fixed to the bottom of the second hydraulic cylinder (325), and both sides of the movable frame (322) can move up and down in the vertical grooves (324).

3. A circulating water pump production detection equipment as claimed in claim 2, characterized in that: A fixing plate (326) is fixed on one side of the movable frame (322), a second side groove (327) is provided on one side of the fixing plate (326), both ends of the second side groove (327) are open, one end of the clamping plate (323) is hinged in the second side groove (327), a second spring (328) is installed between the side wall of the clamping plate (323) and the second side groove (327), the two clamping plates (323) are in an eight-shaped shape, and the clamping plates (323) can be folded around the hinge to be parallel to the second side groove (327).

4. A circulating water pump production detection equipment as claimed in claim 3, characterized in that: A rotating shaft (329) is rotatably mounted on the other side of the movable frame (322), a roller (3210) is mounted on one side of the rotating shaft (329), the roller (3210) is in contact with the inner wall of the vertical groove (324), a steel rope (3211) is fixed on the rotating shaft (329), the other end of the steel rope (3211) passes through the fixing plate (326) and is fixed on the clamping plate (323), wherein When the rotating shaft (329) rotates to reel in the steel rope (3211), the steel rope (3211) pulls the clamping plate (323) to rotate around the hinge point.

5. A circulating water pump production detection equipment as claimed in claim 4, characterized in that: A grabbing platform (7) is installed on one side of the detection platform, a slide rail (71) is installed on the top of the grabbing platform (7), a slide plate (72) is installed on the slide rail (71), and a grabbing claw (73) is installed on one end of the slide plate (72).

6. A circulating water pump production detection device as claimed in claim 5, characterized in that: A motor (21) is mounted on the top of the water pump body (2), and a clamping ring (22) is fixed on the outer shell of the motor (21).

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