An automotive fuel pump valve testing device

Abstract

The present invention discloses an automobile oil pump valve testing device, belonging to the field of valve testing equipment, including a water storage pool. Both sides of the water storage pool are fixedly connected with support frames. One side of the upper surface of the support frame is fixedly connected with a water tank. A sealing component for sealing the connection of the one-way valve is arranged at the inner bottom of the water storage pool. A water pumping component for purification is arranged at one side of the inner bottom of the water storage pool. It is possible to rotate the rotating ring, drive the telescopic rod to approach the center of the fixed ring through the transmission bump, and the four arc-shaped clamping blocks approach the center synchronously. The four arc-shaped clamping blocks squeeze the connection of the one-way valve, which can ensure the extrusion of the connection between the pipeline and the one-way valve, increase the extrusion force at the connection between the one-way valve and the pipeline, improve the upper limit of the pressure borne at the connection of the one-way valve, effectively prevent leakage during the sealing experiment on the one-way valve, thus avoiding the influence on the authenticity of the experimental data, and effectively and intuitively knowing whether there is leakage at the connection.

Description

Technical Field

[0001] The present invention relates to the field of valve testing equipment, and more specifically, to an automobile oil pump valve testing device. Background Art

[0002] An automotive check valve is a valve that only allows the oil to flow in one direction and does not allow reverse flow. Therefore, it is also called a non-return valve or a check valve. It is divided into two structures: a straight-through type and a right-angle type according to the different flow directions of the inlet and outlet oil. Before leaving the factory, it is necessary to detect the sealing performance of the check valve.

[0003] For example, the Chinese patent with the authorization announcement number CN211527739U discloses a check valve airtightness detection device. This device injects gas into the output end of the check valve and observes whether the pressure on the pressure gauge increases. If the pressure does not change, it means that the check valve has good airtightness. If the pressure increases, it means that the check valve has poor airtightness, which is convenient for employees to detect the airtightness of the check valve, improves the detection efficiency, and enhances the practicability.

[0004] However, before injecting gas, it is necessary to connect the inflating head and the connecting pipe to both ends of the check valve respectively. During the connection process, the check valve cannot be guaranteed to be perpendicular to the ground, and there is a certain inclination, which will cause a certain gap between the check valve and the inflating head and the connecting pipe. As a result, the pressure at the connection of the check valve is relatively small. When the injection pressure is greater than the pressure at the connection, gas leakage will occur at the connection; this leads to problems with the sealing performance of the check valve, and there will also be a situation where the pressure gauge value does not change, and it cannot detect whether the sealing performance of the check valve is intact, and it is impossible to directly observe whether there is gas leakage in a timely manner. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide an automobile oil pump valve testing device.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] An automobile oil pump valve testing device includes a water storage pool. Both sides of the water storage pool are fixedly connected with support frames. One side of the upper surface of the support frame is fixedly connected with a water tank. A sealing component for sealing the connection of the check valve is arranged at the bottom of the water storage pool, and a pumping component for purification is arranged at one side of the bottom of the water storage pool.

[0008] The sealing assembly includes a fixed ring fixed to the inner bottom of the water storage pool, a switching component fixed to one side of the inner surface of the water storage pool, and a transposition component fixed to the middle of the inner bottom of the water storage pool. One side of the outer surface of the fixed ring is rotatably connected to a rotating ring. An inclined through groove is formed inside the rotating ring. A telescopic rod is slidably connected inside the fixed ring. One side of the telescopic rod is fixedly connected to an arc-shaped clamping block. One side of the telescopic rod is fixedly connected to a convex block. One side of the rotating ring is rotatably connected to a locking screw.

[0009] Further, there are four groups of the inclined through grooves. One side of the convex block penetrates inside the inclined through groove, and the convex block slides with the inclined through groove. The arc-shaped clamping block is located inside the fixed ring. One side of the rotating ring is fixedly connected to an internal thread plate. The locking screw penetrates through the inside of the internal thread plate and is threadedly connected. On the side of the rotating ring away from the locking screw, handles are symmetrically fixedly connected.

[0010] Further, the switching component includes a circular frame body fixed to one side of the inner surface of the water storage pool and a fixing plate fixed to one side of the inner bottom of the water storage pool. A second guide pipe and a third guide pipe respectively penetrate and connect to the inner top edge of the circular frame body. A rotating shaft penetrates and is rotatably connected to the middle of the inner top of the circular frame body. The bottom of the rotating shaft is rotatably connected to a circular rubber block. A through hole is formed inside the circular rubber block. One side of the second guide pipe is connected to a first water pump. One side of the third guide pipe is connected to an air pump. A connecting component is arranged on the lower surface of the circular frame body.

[0011] Further, the connecting component includes a fixing plate fixed to one side of the inner bottom of the water storage pool. A first guide pipe penetrates and connects to the inside of the fixing plate. One side of the first guide pipe communicates with a rubber hose. One side of the rubber hose communicates with a connecting sleeve. The top of the first guide pipe extends into the inside of the circular frame body. A pointer is arranged on the upper surface of the rotating shaft, and the direction of the pointer points to the through hole. The input end of the first water pump extends into the inside of the water tank. The upper surface of the circular rubber block is closely attached to the inner top of the circular frame body. The lower surface of the circular frame body is frustum-shaped. The inner side of the connecting sleeve contains a pressure sensor, and the pressure sensor is signal-connected to the terminal.

[0012] Further, the transposition component includes a sliding groove formed in the inner bottom of the water storage pool. A fixed column is slidably connected inside the sliding groove. The outer surface of the fixed column is rotatably connected to a fixed frame. Pulling rods penetrate and slide on both sides of the fixed frame. On one side where the two pulling rods are close to each other, clamping sleeves are respectively fixedly connected. Inclined plates are fixedly connected to the outer surfaces of the two clamping sleeves. Springs are sleeved on the outer surfaces of the pulling rods. Insertion holes are symmetrically formed on the outer surface of the fixed column. One side of the fixed frame near the bottom penetrates and is slidably connected to an insertion rod.

[0013] Further, a slider is slidably connected inside the chute, the fixed column is fixed on the upper surface of the slider, the insertion rod is adapted to the insertion hole, and the spring is located between the clamping sleeve and the fixing frame.

[0014] Further, the water pumping assembly includes a second water pump fixed at the inner bottom edge of the water storage tank. A purification assembly is arranged at the input end of the second water pump. The purification assembly is connected with an arc-shaped hollow plate. One side of the arc-shaped hollow plate is symmetrically connected with side hollow plates. A plurality of second water inlet holes are uniformly arranged on one side of the two side hollow plates close to each other. A first water inlet hole is arranged on the inner surface of the arc-shaped hollow plate.

[0015] Further, the interiors of the side hollow plate and the arc-shaped hollow plate are interconnected, and the conversion assembly is located between the two side hollow plates.

[0016] Further, the purification assembly includes a first connection cylinder fixed on one side of the arc-shaped hollow plate and a second connection cylinder fixed at the input end of the second water pump. A movable cylinder is sleeved on the outer surface of the first connection cylinder. A second limiting ring is fixedly connected to the middle of the outer surface of the second connection cylinder. A replacement sleeve is sleeved on one side of the outer surface of the second connection cylinder. A first limiting ring is fixedly connected to the outer surface of the replacement sleeve. A reverse osmosis membrane is fixedly connected to the inner surface of the replacement sleeve.

[0017] Further, rubber sleeves are arranged on the inner surfaces of the movable cylinder and the replacement sleeve. The interiors of the first connection cylinder and the arc-shaped hollow plate are interconnected. The other end of the first limiting ring is sleeved on the outer surface of the replacement sleeve.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. In this solution, by setting the sealing assembly, rotating the rotating ring, driving the telescopic rod to approach the center of the fixed ring through the transmission convex block, the four arc-shaped clamping blocks approach the center synchronously, and the four arc-shaped clamping blocks squeeze the connection part of the one-way valve, which can ensure the extrusion of the connection part between the pipeline and the one-way valve, increase the extrusion force at the connection part between the one-way valve and the pipeline, improve the upper limit of the pressure borne by the connection part of the one-way valve, effectively prevent leakage during the sealing experiment of the one-way valve, thus avoiding affecting the authenticity of the experimental data, and effectively and intuitively knowing whether there is leakage at the connection part.

[0020] 2. In this solution, by setting the switching assembly, the circular rubber block can be driven to rotate by rotating the rotating shaft, and the through hole is respectively communicated with the second diversion pipe and the third diversion pipe, so that the second diversion pipe and the third diversion pipe can be switched for use, and different media can be switched for use, reducing the need to replace all the equipment and pipelines in the whole process, greatly reducing the workload and improving the work efficiency.

[0021] 3. This solution sets a transposition component to pull the rod out from the inside of the socket, release the fixed state between the fixing frame and the fixing column, pull the fixing frame to move the one-way valve out from the inside of the fixing ring, rotate the fixing frame to drive the one-way valve to rotate 180 degrees, and then push the fixing frame to drive the one-way valve to move inside the fixing ring. The connection end of the one-way valve and the connecting sleeve can be quickly replaced, reducing the steps of removing the one-way valve from between the two clamping sleeves. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the water storage tank of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the sealing assembly of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the switching component of the present invention;

[0026] Figure 5 It is a schematic diagram of the internal structure of the circular frame of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the transposition assembly of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the pumping assembly of the present invention;

[0029] Figure 8 It is a schematic diagram of the purification component structure of the present invention.

[0030] Description of the numbers in the figure:

[0031] 1. Water pool; 2. Support frame; 3. Water tank;

[0032] 4. Sealing assembly; 41. Fixed ring; 42. Rotating ring; 43. Locking screw;

[0033] 44, switching assembly; 441, circular frame; 442, first flow guide pipe; 443, rubber hose; 444, connecting sleeve; 445, second flow guide pipe; 446, first water pump; 447, air pump; 448, third flow guide pipe; 449, rotating shaft; 4410, circular rubber block; 4411, through hole; 4412, fixing plate;

[0034] 45, transposition assembly; 451, slide groove; 452, fixed column; 453, socket; 454, plug rod; 455, pull rod; 456, clamping sleeve; 457, spring; 458, fixed frame; 459, tilting plate;

[0035] 46. Arc-shaped clamping block; 47. Oblique through groove; 48. Convex block; 49. Telescopic rod;

[0036] 5. Water pumping assembly; 51. Arc-shaped hollow plate; 52. First water inlet hole; 53. Second water pump;

[0037] 54. Purification assembly; 541. First connecting cylinder; 542. Movable cylinder; 543. Reverse osmosis membrane; 544. First limiting ring; 545. Replacement sleeve; 546. Second limiting ring; 547. Second connecting cylinder;

[0038] 55. Side hollow plate; 56. Second water inlet hole. Detailed implementation manner

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] Please refer to Figures 1 to 8 , an automobile oil pump valve testing device, including a water storage tank 1, two sides of the water storage tank 1 are fixedly connected with support frames 2, one side of the upper surface of the support frame 2 is fixedly connected with a water tank 3, a sealing assembly 4 for sealing the connection of the one-way valve is arranged at the inner bottom of the water storage tank 1, and a water pumping assembly 5 for purification is arranged on one side of the inner bottom of the water storage tank 1;

[0041] As Figure 2 and Figure 3 shown, the sealing assembly 4 includes a fixed ring 41 fixed at the inner bottom of the water storage tank 1, a switching assembly 44 fixed on one side of the inner surface of the water storage tank 1, and a transposition assembly 45 fixed at the middle of the inner bottom of the water storage tank 1. One side of the outer surface of the fixed ring 41 is rotatably connected with a rotating ring 42. An oblique through groove 47 is opened inside the rotating ring 42. A telescopic rod 49 is slidably connected inside the fixed ring 41. One side of the telescopic rod 49 is fixedly connected with an arc-shaped clamping block 46. One side of the telescopic rod 49 is fixedly connected with a convex block 48. One side of the rotating ring 42 is rotatably connected with a locking screw 43.

[0042] Four groups of oblique through grooves 47 are provided. One side of the convex block 48 penetrates through the inside of the oblique through groove 47, and the convex block 48 and the oblique through groove 47 slide relative to each other. The arc-shaped clamping block 46 is located inside the fixed ring 41. One side of the rotating ring 42 is fixedly connected with an internal thread plate. The locking screw 43 penetrates through the inside of the internal thread plate and is threadedly connected. Symmetrically fixed on the side of the rotating ring 42 away from the locking screw 43 are handles.

[0043] When detecting the one-way valve, the one-way valve of the automotive fuel pump is fixed by the transposition component 45, and one end of it is located inside the fixed ring 41. To ensure the rigor of the experiment, at this time, it is necessary to seal the connection between the one-way valve and the experimental pipeline. At this time, the rotating ring 42 is rotated to drive the four inclined through grooves 47 to rotate. The inclined through grooves 47 drive the bumps 48 inside them to move. The bumps 48 drive the telescopic rod 49 to approach the center of the fixed ring 41. The four arc-shaped clamping blocks 46 approach the center synchronously. The four arc-shaped clamping blocks 46 squeeze the connection of the one-way valve, which can ensure the extrusion of the connection between the pipeline and the one-way valve, increase the extrusion force at the connection between the one-way valve and the pipeline, raise the upper limit of the pressure borne inside the one-way valve, effectively prevent leakage during the sealing experiment of the one-way valve, and thus avoid affecting the authenticity of the experimental data.

[0044] As Figure 4 and Figure 5 shown, the switching component 44 includes a circular frame body 441 fixed on one side of the inner surface of the water storage tank 1 and a fixing plate 4412 fixed on one side of the inner bottom of the water storage tank 1. The second guide pipe 445 and the third guide pipe 448 are respectively connected through the top edge inside the circular frame body 441. A rotating shaft 449 is penetrated and rotatably connected in the middle of the top inside the circular frame body 441. The bottom of the rotating shaft 449 is rotatably connected with a circular rubber block 4410. A through hole 4411 is opened inside the circular rubber block 4410. One side of the second guide pipe 445 is connected with a first water pump 446. One side of the third guide pipe 448 is connected with an air pump 447. A connecting component is arranged on the lower surface of the circular frame body 441.

[0045] The connecting component includes a fixing plate 4412 fixed on one side of the inner bottom of the water storage tank 1. A first guide pipe 442 is penetrated and connected inside the fixing plate 4412. One side of the first guide pipe 442 communicates with a rubber hose 443. One side of the rubber hose 443 communicates with a connecting sleeve 444. The top of the first guide pipe 442 extends into the circular frame body 441. A pointer is arranged on the upper surface of the rotating shaft 449, and the direction of the pointer points to the through hole 4411. The input end of the first water pump 446 extends into the water tank 3. The upper surface of the circular rubber block 4410 is closely attached to the inner top of the circular frame body 441. The lower surface of the circular frame body 441 is frustum-shaped. The inner side of the connecting sleeve 444 contains a pressure sensor, and the pressure sensor is connected with the terminal through a signal.

[0046] When conducting a sealing test on a check valve, it is necessary to test the sealing performance of the check valve under different media. However, different pipes need to be replaced to connect with the check valve, resulting in multiple testing steps and a large workload, reducing work efficiency. Therefore, before the test, water containing pigments is poured into the interior of the water tank 3. The output end of the check valve faces the connecting sleeve 444, and the connecting sleeve 444 is sleeved on the output end of the check valve. When introducing liquid into the check valve, the rotating shaft 449 is rotated to drive the circular rubber block 4410 to rotate, and the through hole 4411 turns to the lower side of the second diversion pipe 445, connecting the interior of the second diversion pipe 445 with the interior of the circular frame 441. Then, the first water pump 446 is turned on to transport the liquid inside the water tank 3 into the interior of the second diversion pipe 445, which flows through the through hole 4411, the first diversion pipe 442, and the rubber hose 443 to the connection between the check valve and the connecting sleeve 444. The gas inside the rubber hose 443 flows into the interior of the circular frame 441. As the first water pump 446 continuously transports water into the interior of the second diversion pipe 445, the pressure at the connection between the connecting sleeve 444 and the check valve continuously increases. Before the pressure reaches the specified load-bearing pressure of the check valve, observe whether there is colored water flowing out of the other end of the check valve. If there is colored water flowing out, it indicates that the sealing performance of the check valve is poor and unqualified;

[0047] When it is necessary to introduce gas into the check valve, the rotating shaft 449 is rotated to drive the through hole 4411 to rotate to the lower side of the third diversion pipe 448. The connecting sleeve 444 is removed from the outside of the check valve, the water in the rubber hose 443 is drained, and then the connecting sleeve 444 is sleeved on the check valve. The air pump 447 is turned on, and the air flow passes through the third diversion pipe 448, the through hole 4411, the first diversion pipe 442, and the rubber hose 443 to flow towards the check valve. Observe whether there are air bubbles leaking from one side of the check valve. If there is leakage, it indicates that the sealing performance of the check valve is poor. Thus, by rotating the rotating shaft 449 to drive the circular rubber block 4410 to rotate, the second diversion pipe 445 and the third diversion pipe 448 can be switched for use, and different media can be switched for use, reducing the overall switching of equipment and pipes in the entire process, greatly reducing the workload, and improving work efficiency.

[0048] As Figure 6 shown, the transposition assembly 45 includes a sliding groove 451 opened at the inner bottom of the water storage tank 1. A fixed column 452 is slidably connected inside the sliding groove 451. The outer surface of the fixed column 452 is rotatably connected with a fixed frame 458. The two sides of the fixed frame 458 are slidably connected through a pull rod 455. One side of the two pull rods 455 close to each other is respectively fixedly connected with a clamping sleeve 456. The outer surfaces of the two clamping sleeves 456 are fixedly connected with an inclined plate 459. A spring 457 is sleeved on the outer surface of the pull rod 455. Symmetrically arranged insertion holes 453 are opened on the outer surface of the fixed column 452. A plug rod 454 is slidably connected through one side of the fixed frame 458 close to the bottom.

[0049] A slider is slidably connected inside the chute 451. The fixed column 452 is fixed on the upper surface of the slider. The insertion rod 454 is adapted to the insertion hole 453. The spring 457 is located between the clamping sleeve 456 and the fixed bracket 458.

[0050] After the sealing performance of the output end of the one-way valve is detected, it is also necessary to detect the sealing performance inside the one-way valve when it is closed. Generally, the one-way valve needs to be removed from the conversion component 45 and then flipped and switched, which will increase the operation steps. At this time, pull out the insertion rod 454 from the inside of the insertion hole 453 to release the fixed state between the fixed bracket 458 and the fixed column 452, and pull the fixed bracket 458 and the fixed column 452 to drive the slider to slide inside the chute 451, move the one-way valve out of the inside of the fixed ring 41, then rotate the fixed bracket 458 to drive the one-way valve to rotate 180 degrees, and then push the fixed bracket 458 to drive the one-way valve to move into the inside of the fixed ring 41. Squeeze the connection between the one-way valve and the connecting sleeve 444 through the arc-shaped clamping block 46, close the one-way valve and inject gas into the one-way valve, and observe whether there is gas leakage at the output end of the one-way valve. Therefore, when performing the sealing test on different ends of the one-way valve, the connection end of the one-way valve connected to the connecting sleeve 444 can be quickly replaced, reducing the steps of removing the one-way valve from between the two clamping sleeves 456 and improving the efficiency.

[0051] As Figure 7 shown, the water pumping component 5 includes a second water pump 53 fixed at the inner bottom edge of the water storage tank 1. The input end of the second water pump 53 is provided with a purification component 54. The purification component 54 is connected to an arc-shaped hollow plate 51. One side of the arc-shaped hollow plate 51 is symmetrically connected with side hollow plates 55. A plurality of second water inlet holes 56 are evenly opened on the side of the two side hollow plates 55 close to each other. The inner surface of the arc-shaped hollow plate 51 is provided with a first water inlet hole 52.

[0052] The inside of the side hollow plate 55 and the arc-shaped hollow plate 51 are interconnected. The conversion component 45 is located between the two side hollow plates 55.

[0053] During the test, when there is leakage in the one-way valve test of the water body containing pigments, it will pollute the entire water body inside the water storage tank 1. As the pigment concentration in the water body increases, it will be impossible to visually observe whether there is water leakage in the one-way valve during subsequent observation, resulting in deviation of the detection result. Therefore, during the detection, when water containing pigments leaks from the one-way valve, the second water pump 53 is promptly turned on. The second water pump 53 pumps water into the inside of the arc-shaped hollow plate 51 and the side hollow plate 55 through the purification component 54. When the water inside the side hollow plate 55 and the arc-shaped hollow plate 51 flows, it will suck the water at the first water inlet hole 52 and the second water inlet hole 56 into the inside of the arc-shaped hollow plate 51. When the water body containing pigments diffuses to the second water inlet hole 56 and the first water inlet hole 52, it is promptly sucked into the inside of the arc-shaped hollow plate 51 and discharged, thereby preventing the diffusion of the water body containing pigments and reducing the pigment concentration in the water body, avoiding the direct impact on subsequent observation caused by excessive concentration.

[0054] As Figure 8 shown, the purification component 54 includes a first connecting cylinder 541 fixed on one side of the arc-shaped hollow plate 51 and a second connecting cylinder 547 fixed on the input end of the second water pump 53. An activity cylinder 542 is sleeved on the outer surface of the first connecting cylinder 541. A second limiting ring 546 is fixedly connected to the middle of the outer surface of the second connecting cylinder 547. A replacement sleeve 545 is sleeved on one side of the outer surface of the second connecting cylinder 547. A first limiting ring 544 is fixedly connected to the outer surface of the replacement sleeve 545. A reverse osmosis membrane 543 is fixedly connected to the inner surface of the replacement sleeve 545.

[0055] Rubber sleeves are provided on the inner surfaces of the activity cylinder 542 and the replacement sleeve 545. The inside of the first connecting cylinder 541 and the arc-shaped hollow plate 51 are interconnected. The other end of the first limiting ring 544 is sleeved on the outer surface of the replacement sleeve 545.

[0056] The water containing pigments is sucked away through the first water inlet hole 52 and the second water inlet hole 56 and discharged in a timely manner. However, if the water body containing pigments is directly discharged, there will be a waste of water resources, and a large amount of water resources will be used during detection, increasing the detection cost. Therefore, when the water containing pigments enters the interior of the arc-shaped hollow plate 51, it will enter the interior of the first connecting cylinder 541 and flow towards the reverse osmosis membrane 543 through the interior of the first connecting cylinder 541. When the water body containing pigments passes through the reverse osmosis membrane 543, the small pigment particles in the water body are blocked and filtered by the reverse osmosis membrane 543, filtering and purifying the water body. The purified water body can be recycled to reduce the use of water sources. After a period of time, the reverse osmosis membrane 543 needs to be replaced or cleaned. Push the movable cylinder 542 away from the replacement sleeve 545, separate it from the outer surface of the replacement sleeve 545, and then remove the replacement sleeve 545 from the outer surface of the second connecting cylinder 547, so that the reverse osmosis membrane 543 can be cleaned or replaced, improving the filtering effect and rate of the reverse osmosis membrane 543.

[0057] Usage method: First, add a certain amount of water to the interior of the water storage pool 1, and then add the water body containing pigments to the interior of the water tank 3. Pull the two pull rods 455 away from each other, place the one-way valve between the two clamping sleeves 456, and clamp and fix the one-way valve through the spring 457. Then push the fixing frame 458 to drive the one-way valve to move towards the interior of the fixing ring 41, insert the insertion rod 454 into the insertion hole 453, rotate the rotating ring 42, and through transmission, make the convex block 48 drive the telescopic rod 49 to approach the center of the fixing ring 41. The four arc-shaped clamping blocks 46 approach the center synchronously, and the four arc-shaped clamping blocks 46 squeeze the connection part of the one-way valve, which can ensure that the connection part of the pipeline and the one-way valve is squeezed, increasing the extrusion force at the connection part of the one-way valve and the pipeline, raising the upper limit of the pressure that the one-way valve can withstand internally, effectively preventing leakage during the sealing experiment of the one-way valve, thus affecting the authenticity of the experimental data. Rotate the rotating shaft 449 to drive the circular rubber block 4410 to rotate, and then the second diversion pipe 445 and the third diversion pipe 448 can be switched for use, switching the use of different media, reducing the need to switch all the equipment and pipelines in the entire process, greatly reducing the workload and improving work efficiency.

[0058] Then, if the water body containing pigments leaks and spreads, when the water body containing pigments spreads to the second water inlet hole 56 and the first water inlet hole 52, it is timely sucked into the interior of the arc-shaped hollow plate 51 and discharged, thus preventing the water body containing pigments from spreading, while reducing the concentration of pigments in the water body, avoiding a direct impact on subsequent observations due to excessive concentration. At the same time, the reverse osmosis membrane 543 filters the water body, filtering the pigment particle substances in the water body, and the water body can be recycled.

[0059] The above are only the preferred specific embodiments of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. An automobile oil pump valve testing device, comprising a water storage pool (1), two sides of the water storage pool (1) are fixedly connected with support frames (2), and one side of the upper surface of the support frame (2) is fixedly connected with a water tank (3); It is characterized in that: A sealing assembly (4) for sealing the connection of the one-way valve is arranged at the inner bottom of the water storage pool (1), and a water pumping assembly (5) for purification is arranged at one side of the inner bottom of the water storage pool (1); The sealing assembly (4) includes a fixing ring (41) fixed at the inner bottom of the water storage pool (1), a switching assembly (44) fixed at one side of the inner surface of the water storage pool (1), and a position-changing assembly (45) fixed at the middle of the inner bottom of the water storage pool (1). One side of the outer surface of the fixing ring (41) is rotatably connected with a rotating ring (42). An inclined through groove (47) is formed inside the rotating ring (42). A telescopic rod (49) is slidably connected inside the fixing ring (41). One side of the telescopic rod (49) is fixedly connected with an arc-shaped clamping block (46). One side of the telescopic rod (49) is fixedly connected with a convex block (48). One side of the rotating ring (42) is rotatably connected with a locking screw (43); Four groups of the inclined through grooves (47) are provided. One side of the convex block (48) penetrates inside the inclined through groove (47), and the convex block (48) slides with the inclined through groove (47). The arc-shaped clamping block (46) is located inside the fixing ring (41). An internal thread plate is fixedly connected to one side of the rotating ring (42). The locking screw (43) penetrates inside the internal thread plate and is threadedly connected. Opposite sides of the rotating ring (42) away from the locking screw (43) are symmetrically fixedly connected with handles; The switching assembly (44) includes a circular frame body (441) fixed at one side of the inner surface of the water storage pool (1) and a fixing plate (4412) fixed at one side of the inner bottom of the water storage pool (1). A second diversion pipe (445) and a third diversion pipe (448) respectively penetrate and connect to the edge of the inner top of the circular frame body (441). A rotating shaft (449) penetrates and is rotatably connected to the middle of the inner top of the circular frame body (441). The bottom of the rotating shaft (449) is rotatably connected with a circular rubber block (4410). A through hole (4411) is formed inside the circular rubber block (4410). One side of the second diversion pipe (445) is connected with a first water pump (446). One side of the third diversion pipe (448) is connected with an air pump (447). A connecting component is arranged on the lower surface of the circular frame body (441); The connecting component includes a fixed plate (4412) fixed to one side of the inner bottom of the water storage tank (1). A first guide pipe (442) is connected through the inside of the fixed plate (4412). One side of the first guide pipe (442) is communicated with a rubber hose (443). One side of the rubber hose (443) is communicated with a connecting sleeve (444). The top of the first guide pipe (442) extends into the inside of the circular frame (441). A pointer is arranged on the upper surface of the rotating shaft (449), and the direction of the pointer points to the through hole (4411). The input end of the first water pump (446) extends into the inside of the water tank (3). The upper surface of the circular rubber block (4410) is closely attached to the inner top of the circular frame (441). The lower surface of the circular frame (441) is frustum-shaped. The inner side of the connecting sleeve (444) is provided with a pressure sensor, and the pressure sensor is connected to the terminal through a signal; The transposition component (45) includes a sliding groove (451) opened on the inner bottom of the water storage tank (1). A fixed column (452) is slidably connected inside the sliding groove (451). A fixed frame (458) is rotatably connected to the outer surface of the fixed column (452). Two pull rods (455) are slidably connected through both sides of the fixed frame (458). Clamping sleeves (456) are respectively fixed to the sides of the two pull rods (455) close to each other. Inclined plates (459) are fixed to the outer surfaces of the two clamping sleeves (456). Springs (457) are sleeved on the outer surfaces of the pull rods (455). Insertion holes (453) are symmetrically opened on the outer surface of the fixed column (452). A plug rod (454) is slidably connected through one side of the fixed frame (458) close to the bottom.

2. The automotive fuel pump valve testing device according to claim 1, wherein: A slider is slidably connected inside the sliding groove (451). The fixed column (452) is fixed to the upper surface of the slider. The plug rod (454) is adapted to the insertion hole (453). The spring (457) is located between the clamping sleeve (456) and the fixed frame (458).

3. The automotive oil pump valve testing device according to claim 2, characterized in that: The water pumping component (5) includes a second water pump (53) fixed to the edge of the inner bottom of the water storage tank (1). A purification component (54) is arranged at the input end of the second water pump (53). The purification component (54) is connected to an arc-shaped hollow plate (51). Two side hollow plates (55) are symmetrically connected to one side of the arc-shaped hollow plate (51). A plurality of second water inlet holes (56) are evenly opened on the sides of the two side hollow plates (55) close to each other. A first water inlet hole (52) is opened on the inner surface of the arc-shaped hollow plate (51).

4. A vehicle fuel pump valve testing device according to claim 3, characterized in that: The inside of the side hollow plate (55) and the arc-shaped hollow plate (51) is communicated with each other. The transposition component (45) is located between the two side hollow plates (55).

5. The automotive fuel pump valve testing device according to claim 4, characterized in that: The purification component (54) includes a first connecting cylinder (541) fixed to one side of the arc-shaped hollow plate (51) and a second connecting cylinder (547) fixed to the input end of the second water pump (53). An activity cylinder (542) is sleeved on the outer surface of the first connecting cylinder (541). A second limiting ring (546) is fixedly connected to the middle of the outer surface of the second connecting cylinder (547). A replacement sleeve (545) is sleeved on one side of the outer surface of the second connecting cylinder (547). A first limiting ring (544) is fixedly connected to the outer surface of the replacement sleeve (545). A reverse osmosis membrane (543) is fixedly connected to the inner surface of the replacement sleeve (545).

6. The automotive oil pump valve testing device according to claim 5, wherein: Rubber sleeves are provided on the inner surfaces of the activity cylinder (542) and the replacement sleeve (545). The inside of the first connecting cylinder (541) and the arc-shaped hollow plate (51) are in mutual communication. The other end of the first limiting ring (544) is sleeved on the outer surface of the replacement sleeve (545).

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