Water pump sealing test equipment

Abstract

The invention discloses water pump sealing test equipment which comprises a grounding base. The upper end of the grounding base is provided with a support, the upper end of the support is provided with a cylinder body end cover, the upper end of the cylinder body end cover is connected with a cylinder body through a second bolt, the upper end of the cylinder body is internally provided with a shaft sleeve, the upper end of the cylinder body is connected with a test sealing element base through a bolt, and the interior of a whole formed by the cylinder body and the test sealing element base is rotationally connected with a main shaft; the middle of the main shaft is rotatably connected into the shaft sleeve, the upper end of the main shaft is movably sleeved with a test sealing piece, the upper end of a test sealing piece base is connected with a first pressing plate through a first stud and a first nut, the first pressing plate is located at the upper end of the test sealing piece, and the upper end of the main shaft is rotatably connected into a round hole in the middle of the first pressing plate. According to the water pump sealing test equipment, tests of different types and sizes of water pump sealing elements, different pressures and impurity conditions can be realized through one set of equipment, the research and development and test time is greatly saved, and the cost is saved.

Description

Technical Field

[0001] The invention relates to the technical field of water pump seals, in particular to a water pump seal testing device. Background Art

[0002] Seals are materials or parts that prevent fluids or solid particles from leaking between adjacent mating surfaces and prevent external impurities such as dust and moisture from invading components inside machinery and equipment. Although rubber and plastic seals are small, their functions make them basic components and accessories in major national economic industries such as national defense, chemical industry, petroleum, coal, transportation and machinery manufacturing, and they occupy a very important position in the development of the national economy.

[0003] The sealing effect of water pump seals needs to be tested during R&D and production. Existing water pump seal test equipment is usually for fixed models of water pumps. When the size, quantity, and material of water pump seals change, they need to be redesigned as a whole, which not only consumes financial resources but also increases the R&D and testing cycle. For this reason, we propose a water pump seal test equipment. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a water pump seal testing equipment, which can realize the testing of water pump seals of different models and sizes, different pressures and impurity conditions through a set of equipment, greatly saving the time of research and development and testing, saving costs, and effectively solving the problems in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a water pump sealing test device, comprising a grounding base; Ground base: a bracket is arranged at its upper end, a cylinder end cover is arranged at its upper end, the upper end of the cylinder end cover is connected to the cylinder body by bolt 2, a shaft sleeve is arranged inside the upper end of the cylinder body, the upper end of the cylinder body is connected to the test seal base by bolts, the cylinder body and the test seal base are integrally connected to the main shaft internally, the middle part of the main shaft is connected to the inside of the shaft sleeve, a test seal is arranged on the upper external movable sleeve of the main shaft, the upper end of the test seal base is connected to a pressure plate 1 by stud 1 and nut 1, the pressure plate 1 is located at the upper end of the test seal, the upper end of the main shaft is connected to the inside of the circular hole in the middle of the pressure plate 1, and the test of water pump seals of different models and sizes, pressures and impurity conditions can be realized through a set of equipment, which greatly saves the time of research and development and testing, and saves costs.

[0006] Furthermore, the middle threaded connection of the test seal base is provided with symmetrically distributed temperature sensors, the probes of the temperature sensors are all aligned with the outer arc surface of the main shaft, the temperature sensors are all located at the lower end of the test seal, and the temperature sensors are all bidirectionally electrically connected to an external controller to detect the temperature of the main shaft.

[0007] Furthermore, a rubber sealing ring 1 is placed on the upper surface of the cylinder body through a sealing groove 1, and the outer arc surface of the rubber sealing ring 1 contacts the lower surface of the test seal base. A sealing ring 2 is placed on the upper surface of the cylinder end cover through a sealing groove 2, and the outer arc surface of the sealing ring 2 contacts the lower surface of the cylinder body to seal the cylinder body.

[0008] Furthermore, the outer arc surface of the cylinder body is threadedly connected with a plug to facilitate the addition of impurities.

[0009] Furthermore, a motor mounting platform is provided in the middle part of the bracket, and the lower surface of the motor mounting platform is connected to the motor by bolt four and nut three, and the output shaft of the motor is fixedly connected to the lower main shaft by a rigid clamping coupling, and the upper end of the lower main shaft is fixedly connected to the lower end of the main shaft by a connecting flange, and a rotating plate is provided on the middle fixed sleeve of the lower main shaft, and the rotating plate is located inside the cylinder body, and the upper surface of the motor mounting platform is fixedly connected to the Hall sensor through the bracket, and the lower surface of the cylinder end cover is fixedly connected to the packing seal mounting seat, and a packing seal is placed inside the packing seal mounting seat, and the lower end of the packing seal mounting seat is connected to the pressure plate two by bolt three and nut two, and the packing seal is located at the upper end of the pressure plate two, and the lower main shaft is rotatably connected to the inside of the packing seal, and the input end of the motor is electrically connected to the output end of the external controller, and the Hall sensor is bidirectionally electrically connected to the external controller, driving the rotating plate and the main shaft to rotate.

[0010] Furthermore, the upper end of the rigid clamping coupling is fixedly connected to a water retaining plate, the lower main shaft passes through the through hole in the middle of the water retaining plate, the upper surface of the motor mounting platform is fixedly connected to a water retaining ring, and the rigid clamping coupling is located inside the water retaining ring to protect the motor.

[0011] Furthermore, a water collecting cover is provided on the outer arc surface fixing sleeve of the test seal base, a measuring cup is placed on the upper surface of the cylinder end cover, the water collecting cover and the measuring cup are connected by a water supply pipe 1, a water collecting trough 1 is provided on the upper surface of the cylinder end cover, a collecting pool is provided on the left side of the bracket, and the water collecting trough 1 and the collecting pool are connected by a water supply pipe 2 to collect water and measure the leakage.

[0012] Furthermore, a pressure tank is provided on the right side of the bracket, a pressure gauge 1 is provided on the outer arc surface of the pressure tank, a straight joint is fixedly connected to the outer arc surface of the cylinder body, the straight joint and the lower end of the pressure tank are connected through a connecting pipe 1, a ball valve and a pressure gauge 2 are provided in the middle of the connecting pipe 1, a water pump is provided on the right side of the pressure tank, the water outlet of the water pump and the lower end of the pressure tank are connected through a connecting pipe 2, a one-way valve is provided in the middle of the connecting pipe 2, a water reservoir is provided on the front side of the bracket, the water reservoir and the water inlet of the water pump are connected through a connecting pipe 3, a water filter is provided in the middle of the connecting pipe 3, and the input end of the water pump is electrically connected to the output end of the external controller to test water supply and pressurization.

[0013] Furthermore, a water collecting trough 2 is provided on the upper surface of the motor mounting platform, and a sedimentation tank is provided on the left side of the water reservoir. The sedimentation tank is connected to the water collecting trough 2 through a connecting pipe 4 to collect leaked water for reuse.

[0014] Furthermore, a rubber sealing pad is placed on the upper surface of the cylinder end cover, and a protective cover is placed on the upper end of the rubber sealing pad. The protective cover is connected to the cylinder end cover by bolts five and nuts four. An observation door is hinged on the side of the protective cover by hinges. A lamp is fixedly connected to the middle of the top wall of the protective cover, and cameras are fixedly connected to the left and right sides of the top wall of the protective cover. The input ends of the lamp and the camera are electrically connected to the output end of the external controller to observe the test conditions.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the water pump sealing test equipment has the following advantages: 1. After making sure that the ball valve is closed and there is enough water in the water reservoir, turn on the water pump. When the pressure gauge of the pressure tank reaches the required value, turn off the water pump, open the ball valve, and the water in the pressure tank enters the cylinder body through the one-way valve along the connecting pipe 1. Turn on the motor through the external controller, and the turntable rotates to stir the impurities. The temperature sensor begins to detect and record the friction temperature rise data of the detection shaft and the seal and feeds back to the external controller. During the operation of the equipment, water will leak from the test seal, which will be collected through the water collection cover and collected inside the measuring cup through the water diversion pipe 1. If the leakage is too large during the operation of the equipment, the water will flow into the collection pool through the water diversion pipe 2 of the cylinder end cover. The cylinder end cover is provided with a water collection tank 1 to collect water. Finally, the leakage rate per unit time can be calculated by the collected water volume and time.

[0016] 2. The test seal base, its internal parts, and the main shaft can be replaced according to the changes of the test seal to meet the experimental needs of test seals of different sizes (shaft diameters), quantities, and materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a partial cross-sectional schematic diagram of the present invention; Figure 3 This is an enlarged structural schematic diagram of location A of the present invention; Figure 4 It is a schematic diagram of the enlarged structure of point B of the present invention.

[0018] In the figure: 1 spindle, 2 pressure plate 1, 3 test seal, 4 temperature sensor, 5 bolt, 6 test seal base, 7 rubber seal ring 1, 8 cylinder body, 9 straight joint, 10 rotating plate, 11 seal ring 2, 12 packing seal, 13 packing seal mounting seat, 14 cylinder body end cover, 15 pressure plate 2, 16 water retaining plate, 17 rigid clamping coupling, 18 water retaining ring, 19 motor mounting platform, 20 motor, 21 stud 1, 22 nut 1, 23 bolt 2, 24 bolt 3, 25 nut 2, 26 plug, 27 bolt 4, 2 8 Nut three, 29 bushing, 30 connecting flange, 31 rubber sealing gasket, 32 bolt five, 33 nut four, 34 Hall sensor, 35 protective cover, 36 light, 37 camera, 38 observation door, 39 water collecting cover, 40 water diversion pipe one, 41 measuring cup, 42 water collecting tank one, 43 water diversion pipe two, 44 ​​bracket, 45 water collecting tank two, 46 ​​grounding base, 47 pressure gauge one, 48 pressure tank, 49 one-way valve, 50 ball valve, 51 pressure gauge two, 52 water pump, 53 collection tank, 54 sedimentation tank, 55 reservoir, 56 water filter. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-4 ,This embodiment provides a technical solution: a water pump sealing test device, including a grounding base 46; The grounding base 46: a bracket 44 is provided at the upper end thereof, a cylinder end cover 14 is provided at the upper end of the bracket 44, the upper end of the cylinder end cover 14 is connected to the cylinder 8 by a bolt 23, a shaft sleeve 29 is provided inside the upper end of the cylinder 8, a test seal base 6 is provided at the upper end of the cylinder 8 by a bolt connection 5, the cylinder 8 and the test seal base 6 are integrally connected to the main shaft 1 in a rotational manner, the middle part of the main shaft 1 is rotationally connected to the inside of the shaft sleeve 29, a test seal 3 is provided on the upper end external movable sleeve of the main shaft 1, the upper end of the test seal base 6 is connected to a pressure plate 2 by a stud 21 and a nut 22, the pressure plate 2 is located at the upper end of the test seal 3, the upper end of the main shaft 1 is rotationally connected to the main shaft 1, and the test seal base 6 is provided with a test seal 3. The test seal base 6 is connected to the inner part of the circular hole in the middle of the pressure plate 2, and the middle part of the test seal base 6 is threadedly connected with symmetrically distributed temperature sensors 4, and the probes of the temperature sensors 4 are all aligned with the outer arc surface of the main shaft 1. The temperature sensors 4 are all located at the lower end of the test seal 3, and the temperature sensors 4 are bidirectionally electrically connected with the external controller. A rubber sealing ring 7 is placed on the upper surface of the cylinder 8 through a sealing groove 1, and the outer arc surface of the rubber sealing ring 7 contacts the lower surface of the test seal base 6. A sealing ring 2 11 is placed on the upper surface of the cylinder end cover 14 through a sealing groove 2, and the outer arc surface of the sealing ring 2 11 contacts the lower surface of the cylinder 8. The outer arc surface of the cylinder 8 is threadedly connected with a plug 26; A motor mounting platform 19 is provided in the middle of the bracket 44, and the lower surface of the motor mounting platform 19 is connected to the motor 20 through bolts 27 and nuts 28. The output shaft of the motor 20 is fixedly connected to the lower spindle through a rigid clamping coupling 17, and the upper end of the lower spindle is fixedly connected to the lower end of the spindle 1 through a connecting flange 30. A rotating plate 10 is fixedly sleeved in the middle of the lower spindle, and the rotating plate 10 is located inside the cylinder body 8. The upper surface of the motor mounting platform 19 is fixedly connected to the Hall sensor 34 through the bracket, and the lower surface of the cylinder end cover 14 is fixedly connected to the packing seal mounting seat 13, and the packing seal 12 is placed inside the packing seal mounting seat 13. The lower end of the packing seal mounting seat 13 is connected to the pressure plate 2 15 through bolts 3 24 and nuts 25, and the packing seal 12 is located on the pressure plate 15. The upper end of the lower spindle is rotatably connected to the inside of the packing seal 12, the input end of the motor 20 is electrically connected to the output end of the external controller, the Hall sensor 34 is bidirectionally electrically connected to the external controller, the upper end of the rigid clamping coupling 17 is fixedly connected to the water baffle 16, the lower spindle passes through the through hole in the middle of the water baffle 16, the upper surface of the motor mounting platform 19 is fixedly connected to the water baffle ring 18, the rigid clamping coupling 17 is located inside the water baffle ring 18, the motor 20 is turned on by the external controller, the output shaft of the motor 20 drives the lower spindle and the spindle 1 to rotate, the input end of the motor 20 passes through the Hall sensor 34, the Hall sensor 34 starts to record the current data of the motor 20 and feeds it back to the external controller, the external controller controls the motor 20 to run stably through the data, the rotating plate 10 rotates, and the impurities are stirred. The temperature sensor 4 starts to detect and record the friction temperature rise data of the detection shaft and the seal and feeds it back to the external controller. During the operation of the equipment, water will leak from the test seal 3, which will be collected by the water collecting cover 39 and collected inside the measuring cup 41 through the water diversion pipe 1 40. If the leakage is too large during the operation of the equipment, the water will flow into the collection tank 53 through the water diversion pipe 2 43 of the cylinder end cover 14. The cylinder end cover 14 is provided with a water collection tank 1 42 for collecting water. Finally, the leakage rate per unit time can be calculated by the collected water volume and time. A water collecting cover 39 is fixedly provided on the outer arc surface of the test seal base 6, a measuring cup 41 is placed on the upper surface of the cylinder end cover 14, the water collecting cover 39 and the measuring cup 41 are connected through a water diversion pipe 40, a water collecting tank 42 is provided on the upper surface of the cylinder end cover 14, a collecting tank 53 is provided on the left side of the bracket 44, the water collecting tank 42 and the collecting tank 53 are connected through a water diversion pipe 43, a pressure tank 48 is provided on the right side of the bracket 44, a pressure gauge 47 is provided on the outer arc surface of the pressure tank 48, a straight-through joint 9 is fixedly connected to the outer arc surface of the cylinder 8, the straight-through joint 9 is connected to the lower end of the pressure tank 48 through a connecting pipe 1, a ball valve 50 and a pressure gauge 51 are provided in the middle of the connecting pipe 1, a water pump 52 is provided on the right side of the pressure tank 48, the water outlet of the water pump 52 is connected to the lower end of the pressure tank 48 through a connecting pipe 2, and the connecting pipe 2 A one-way valve 49 is provided in the middle, a water reservoir 55 is provided on the front side of the bracket 44, the water reservoir 55 and the water inlet of the water pump 52 are communicated through three connecting pipes, a water filter 56 is provided in the middle of the connecting pipe three, the input end of the water pump 52 is electrically connected to the output end of the external controller, a water collecting tank 2 45 is provided on the upper surface of the motor mounting platform 19, a sedimentation tank 54 is provided on the left side of the water reservoir 55, and the sedimentation tank 54 and the water collecting tank 2 45 are communicated through four connecting pipes. After determining that the ball valve 50 is closed and there is enough water in the water reservoir 55, the water pump 52 is turned on by the external controller, the water pump 52 draws water from the water reservoir 55 and sends it into the internal water supply of the pressure tank 48, the water filter 56 filters the water, and when the pressure gauge of the pressure tank 48 reaches the required value, the water pump 52 is turned off, the ball valve 50 is opened, and the water in the pressure tank 48 enters the cylinder body 8 along the connecting pipe one through the one-way valve. The test starts after the value of pressure gauge 2 51 is stable and equal to that of pressure gauge 1 47. The water leaking from packing seal 12 is not included in the leakage analysis, but directly enters the sedimentation tank 54 through the water collecting tank 2 45 and the connecting pipe 4, and then returns to the water storage tank 55 for reuse; A rubber sealing pad 31 is placed on the upper surface of the cylinder end cover 14, and a protective cover 35 is placed on the upper end of the rubber sealing pad 31. The protective cover 35 is connected to the cylinder end cover 14 by bolts 5 32 and nuts 4 33. An observation door 38 is hinged on the side of the protective cover 35 by hinges. A lamp 36 is fixedly connected to the middle of the top wall of the protective cover 35, and cameras 37 are fixedly connected to the left and right sides of the top wall of the protective cover 35. The input ends of the lamp 36 and the camera 37 are electrically connected to the output end of the external controller. During the test, the internal test conditions are observed through the camera 37 and the observation door 38, and the lamp 36 provides lighting for the test interior.

[0021] The working principle of a water pump sealing test device provided by the present invention is as follows: remove the plug 26, add impurities to the inside of the cylinder 8, reinstall the plug 26 after the addition is completed, make sure that the ball valve 50 is closed, and after the water reservoir 55 has a sufficient amount of water, start the water pump 52 through the external controller, the water pump 52 draws water from the water reservoir 55 and sends it to the inside of the pressure tank 48, the water filter 56 filters the water, and after the pressure gauge of the pressure tank 48 reaches the required value, the water pump 52 is closed, the ball valve 50 is opened, and the water in the pressure tank 48 enters the cylinder 8 along the connecting pipe 1 through the one-way valve. After the value of the pressure gauge 2 51 is stable and equal to the pressure gauge 1 47, check whether the equipment is leaking or abnormally leaking beyond the experimental requirements, or terminate the test and handle other situations. The motor 20 is turned on by an external controller, and the output shaft of the motor 20 drives the lower spindle and the spindle 1 to rotate. The input end of the motor 20 passes through the Hall sensor 34, and the Hall sensor 34 starts to record the current data of the motor 20 and feeds it back to the external controller. The external controller controls the motor 20 to run stably through the data, and the rotating plate 10 rotates to stir the impurities. The temperature sensor 4 starts to detect and record the friction temperature rise data of the detection shaft and the seal and feeds it back to the external controller. During the operation of the equipment, water will leak from the test seal 3, be collected by the water collecting cover 39, and be collected in the measuring cup 41 through the water inlet pipe 40. If the leakage is too large during the operation of the equipment, the water will flow into the collection pool 53 through the water inlet pipe 43 of the cylinder end cover 14. The cylinder end cover 14 is provided with a water collecting tank 42 for collecting water. Finally, the leakage rate per unit time can be calculated by the collected water volume and time. The water leaking from the packing seal 12 is not included in the leakage analysis, and directly enters the sedimentation tank 54 through the water collection tank 2 45 and the connecting pipe 4, and then returns to the water storage tank 55 for reuse. During the test, the internal test conditions are observed through the camera 37 and the observation door 38, and the light 36 provides lighting for the test interior. After the equipment runs for a predetermined period, it stops, removes the test seal 3, measures the overall dimensions and weight changes, and analyzes the wear and aging of the seal.

[0022] It is worth noting that the Hall sensor 34 disclosed in the above embodiment can use LT208-S7 Hall effect sensor, the motor 20 can use hg-sn302bj servo motor, and the external controller controls the operation of the Hall sensor 34, motor 20, camera 37, light 36 and temperature sensor 4 using methods commonly used in the prior art.

[0023] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A water pump sealing test device, characterized in that: including a ground base (46); A grounding base (46): a bracket (44) is provided at its upper end, a cylinder end cover (14) is provided at the upper end of the bracket (44), the upper end of the cylinder end cover (14) is connected to the cylinder (8) via bolt 2 (23), a shaft sleeve (29) is provided inside the upper end of the cylinder (8), a test seal base (6) is connected to the upper end of the cylinder (8) via bolt connection (5), the cylinder (8) and the test seal base (6) are integrally connected to the main shaft (1) in a rotatable manner, the middle part of the main shaft (1) is rotatably connected to the inside of the shaft sleeve (29), a test seal (3) is provided on the outer movable sleeve at the upper end of the main shaft (1), the upper end of the test seal base (6) is connected to a pressure plate (2) via a stud (21) and a nut (22), the pressure plate (2) is located at the upper end of the test seal (3), and the upper end of the main shaft (1) is rotatably connected to the inside of the circular hole in the middle of the pressure plate (2).

2. A water pump sealing test device according to claim 1, characterized in that: The middle part of the test seal base (6) is threadedly connected with symmetrically distributed temperature sensors (4), the probes of the temperature sensors (4) are all aligned with the outer arc surface of the main shaft (1), the temperature sensors (4) are all located at the lower end of the test seal (3), and the temperature sensors (4) are all bidirectionally electrically connected to an external controller.

3. A water pump sealing test device according to claim 1, characterized in that: A rubber sealing ring (7) is placed on the upper surface of the cylinder body (8) through a sealing groove (1), and the outer arc surface of the rubber sealing ring (7) contacts the lower surface of the test seal base (6). A sealing ring (11) is placed on the upper surface of the cylinder body end cover (14) through a sealing groove (2), and the outer arc surface of the sealing ring (11) contacts the lower surface of the cylinder body (8).

4. A water pump sealing test device according to claim 1, characterized in that: The outer arc surface of the cylinder body (8) is threadedly connected with a plug (26).

5. The water pump sealing test equipment according to claim 1, characterized in that: A motor mounting platform (19) is provided in the middle of the bracket (44); the lower surface of the motor mounting platform (19) is connected to the motor (20) via bolts (27) and nuts (28); the output shaft of the motor (20) is fixedly connected to the lower spindle via a rigid clamping coupling (17); the upper end of the lower spindle is fixedly connected to the lower end of the spindle (1) via a connecting flange (30); a rotating plate (10) is provided in the middle of the lower spindle; the rotating plate (10) is located inside the cylinder body (8); the upper surface of the motor mounting platform (19) is fixedly connected to the Hall sensor via the bracket. A sensor (34) is provided, the lower surface of the cylinder end cover (14) is fixedly connected to a packing seal mounting seat (13), a packing seal (12) is placed inside the packing seal mounting seat (13), the lower end of the packing seal mounting seat (13) is connected to a pressure plate (15) via a bolt (24) and a nut (25), the packing seal (12) is located at the upper end of the pressure plate (15), the lower main shaft is rotatably connected to the inside of the packing seal (12), the input end of the motor (20) is electrically connected to the output end of the external controller, and the Hall sensor (34) is bidirectionally electrically connected to the external controller.

6. A water pump sealing test device according to claim 5, characterized in that: The upper end of the rigid clamping coupling (17) is fixedly connected to a water baffle plate (16), the lower main shaft passes through a through hole in the middle of the water baffle plate (16), the upper surface of the motor mounting platform (19) is fixedly connected to a water baffle ring (18), and the rigid clamping coupling (17) is located inside the water baffle ring (18).

7. A water pump sealing test device according to claim 5, characterized in that: The outer arc surface fixed sleeve of the test seal base (6) is provided with a water collecting cover (39), a measuring cup (41) is placed on the upper surface of the cylinder end cover (14), the water collecting cover (39) and the measuring cup (41) are connected via a water guide pipe (40), a water collecting trough (42) is provided on the upper surface of the cylinder end cover (14), a collecting pool (53) is provided on the left side of the bracket (44), and the water collecting trough (42) and the collecting pool (53) are connected via a water guide pipe (43).

8. The water pump sealing test equipment according to claim 1, characterized in that: A pressure tank (48) is arranged on the right side of the support (44), a pressure gauge 1 (47) is arranged on the outer arc surface of the pressure tank (48), a straight joint (9) is fixedly connected to the outer arc surface of the cylinder body (8), the straight joint (9) and the lower end of the pressure tank (48) are connected via a connecting pipe 1, a ball valve (50) and a pressure gauge 2 (51) are arranged in the middle of the connecting pipe 1, a water pump (52) is arranged on the right side of the pressure tank (48), the water outlet of the water pump (52) and the lower end of the pressure tank (48) are connected via a connecting pipe 2, a one-way valve (49) is arranged in the middle of the connecting pipe 2, a water reservoir (55) is arranged on the front side of the support (44), the water reservoir (55) and the water inlet of the water pump (52) are connected via a connecting pipe 3, a water filter (56) is arranged in the middle of the connecting pipe 3, and the input end of the water pump (52) is electrically connected to the output end of an external controller.

9. A water pump sealing test device according to claim 8, characterized in that: A second water collecting trough (45) is provided on the upper surface of the motor mounting platform (19), a sedimentation tank (54) is provided on the left side of the water storage tank (55), and the sedimentation tank (54) is connected to the second water collecting trough (45) via a fourth connecting pipe.

10. The water pump sealing test equipment according to claim 1, characterized in that: A rubber sealing pad (31) is placed on the upper surface of the cylinder end cover (14), a protective cover (35) is placed on the upper end of the rubber sealing pad (31), the protective cover (35) is connected to the cylinder end cover (14) via a fifth bolt (32) and a fourth nut (33), an observation door (38) is hingedly connected to the side of the protective cover (35) via a hinge, a lamp (36) is fixedly connected to the middle of the top wall of the protective cover (35), and cameras (37) are fixedly connected to the left and right sides of the top wall of the protective cover (35), and input ends of the lamp (36) and the camera (37) are electrically connected to the output end of an external controller.

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