Automobile sealing ring part sealing performance test equipment

Abstract

The invention relates to the technical field of valve oil seal testing, in particular to sealing performance testing equipment for automobile sealing ring parts. Comprising a support frame; the control panel is installed on the side face of the supporting frame. The mounting plate is connected to the top of the supporting frame; the fixing frame is connected to the top of the mounting plate; the mold is placed on the fixed frame; and the rotating frame is rotationally connected to the top of the mounting plate. The sealing performance between the rotating frame and the fixed frame is ensured through cooperation of the rotating frame and the fixed frame and the first sealing ring, a closed space can be formed to simulate actual working conditions, engine oil in the closed space cannot leak due to external factors when the sealing performance of the valve oil seal is tested, therefore, misjudgment can be avoided, and meanwhile, the sealing performance of the valve oil seal is ensured. When the valve oil seal leaks, certain hydraulic pressure is kept in the fixed frame and the rotating frame, any leakage can cause engine oil to be sprayed out from a gap between the valve body and the valve oil seal, and the visual representation enables the test result to be more accurate and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of valve oil seal testing, and particularly to a testing device for the sealing performance of automotive sealing ring parts. Background Art

[0002] With the rapid development of the automotive industry, the requirements for various automotive components are also increasing day by day, especially for components closely related to safety and comfort. As a key part, the sealing ring plays an irreplaceable role in many important parts of the automotive engine, transmission, air conditioning system, etc. Its main function is to prevent the leakage of liquid or gas between two contact surfaces, thus ensuring the normal operation of the system.

[0003] The invention patent with the publication number CN118936754A discloses a leakage measurement device for engine valve oil seals. The device includes components such as a base, a test stand, a fixing plate, an imitation valve body, a fixing seat, and a valve spring. When in use, an appropriate amount of sealing oil is dropped into the oil groove at the top of the fixing seat manually, and the fixing seat is driven to move up and down by a motor, driving the valve oil seal to move up and down on the valve body to simulate the movement in the valve cylinder, so as to realize the test of the sealing performance of the valve oil seal.

[0004] However, this testing method still has the following problems: First, during the up and down movement of the fixing seat, the sealing oil in the oil groove moves together with the fixing seat, resulting in no accurate flow direction of the sealing oil, making it difficult to accurately judge whether the sealing oil leaks from the gap between the valve oil seal and the valve body; Second, the sealing oil in the oil groove may be directly thrown out from the top of the fixing seat due to inertia, which is easily misjudged as leakage of the sealing oil, thus misleading the accuracy of the test results; In addition, due to the small amount of sealing oil in the oil groove and the need to rely on visual observation to judge the leakage situation, even slight leakage is difficult to be accurately detected, which not only limits the sensitivity and accuracy of the test, but also may cause unqualified products to flow into the market, affecting the safety and reliability of the vehicle. Summary of the Invention

[0005] In view of this, the present invention provides a testing device for the sealing performance of automotive sealing ring parts, which can overcome the disadvantages that when the existing valve oil seal testing device is in use, it is impossible to accurately judge whether the sealing oil leaks from the gap between the valve oil seal and the valve body, and the accuracy of the test results is relatively low.

[0006] Technical solution: An automotive sealing ring part sealing performance testing device, comprising: a support frame; a control panel installed on the side of the support frame; a mounting plate connected to the top of the support frame; a fixing frame connected to the top of the mounting plate; a mold placed on the fixing frame; a rotating frame rotatably connected to the top of the mounting plate, and a first exhaust valve and an intake valve are installed on the rotating frame; a first sealing ring connected to the rotating frame, and the first sealing ring is in contact and cooperation with the top of the fixing frame; a support plate connected to the top of the mounting plate; a sliding rod slidably connected to the support plate; a return spring wound around the outside of the sliding rod, and the two ends of the return spring are respectively connected to the support plate and the sliding rod; a connecting component arranged on the top of the mounting plate for connecting the sliding rod and the valve body; a moving component arranged on the top of the mounting plate for driving the sliding rod to perform horizontal reciprocating movement; a locking component arranged on the fixing frame for locking the rotating frame; a pressurizing component arranged on the support frame for delivering oil to the fixing frame and pressurizing it.

[0007] In addition, particularly preferably, the connecting component includes: a sliding screw rod connected to the end of the sliding rod; a locking bolt threadedly connected to the top of the sliding screw rod, and the locking bolt is in contact and cooperation with the surface of the sliding rod; a nut threadedly connected to the outside of the sliding screw rod; a circular plate connected to the end of the sliding screw rod; a sliding frame slidably connected to the circular plate, and the sliding frame is sleeved on the outside of the sliding screw rod; a pressing plate connected to the sliding frame, and a first vertical groove through which the valve body can pass is opened on the pressing plate.

[0008] In addition, particularly preferably, the moving component includes: guide rails symmetrically connected to the top of the mounting plate; a sliding seat slidably connected to the guide rails; a driving motor installed on the top of the sliding seat; a rotating rod rotatably connected to the sliding seat, and one end of the rotating rod is connected to the output shaft of the driving motor; an inclined block connected to the other end of the rotating rod; a contact rod connected to the end of the sliding rod, and the contact rod is in contact with the inclined surface of the inclined block; an adjusting mechanism arranged on the top of the mounting plate for adjusting the horizontal position of the sliding seat.

[0009] In addition, particularly preferably, the adjusting mechanism includes: connecting seats symmetrically connected to the top of the mounting plate; a lead screw rotatably connected to the connecting seats, and the sliding seat is threadedly connected to the lead screw; an extension rod connected to the end of the lead screw.

[0010] In addition, particularly preferably, the locking component includes: connecting plates symmetrically connected to both sides of the fixing frame; clamping plates connected to the tops of the connecting plates; elastic clamping rods symmetrically connected to both sides of the rotating frame, and the elastic clamping rods are in contact with the clamping plates; a handle connected to the elastic clamping rods.

[0011] In addition, it is particularly preferred that the pressurizing assembly includes: a fixed cylinder connected to the support frame; a second exhaust valve installed at the top of the fixed cylinder; a connecting pipe connected to the side of the fixed cylinder and kept in communication, and the upper end of the connecting pipe penetrates through the top of the mounting plate and communicates with the inside of the fixed frame; a liquid pressure sensor installed on the connecting pipe; an electric push rod installed on the support frame; a piston slidably connected inside the fixed cylinder, and the side of the piston is connected to the telescopic rod of the electric push rod; a waste discharging mechanism arranged on the connecting pipe for discharging waste engine oil.

[0012] In addition, it is particularly preferred that the waste discharging mechanism includes: a waste discharging pipe connected to the bottom of the connecting pipe and kept in communication; a valve installed on the waste discharging pipe; a waste liquid frame placed on the support frame, and the waste liquid frame is located directly below the waste discharging pipe.

[0013] In addition, it is particularly preferred that it further includes: a push handle slidably connected to the fixed frame; a square plate connected to the end of the push handle; a second sealing ring connected to the outside of the square plate, and the second sealing ring fits against the inner wall of the fixed frame; a cylinder connected to the square plate, and a through hole is opened at the top of the cylinder; a push plate slidably connected inside the cylinder; a connecting spring connecting the push plate and the cylinder.

[0014] In addition, it is particularly preferred that it further includes: heating plates symmetrically installed on the inner wall of the fixed frame.

[0015] In addition, it is particularly preferred that it further includes: a collection frame placed on the top of the mounting plate; a top frame placed on the top of the collection frame, and second vertical holes are opened on both sides of the top frame; a fixed baffle connected to the inner wall of the top frame, and a third vertical hole is opened on the fixed baffle; rotating baffles symmetrically rotatably connected to the sides of the fixed baffle, and semi-circular holes are opened on the rotating baffles, and the semi-circular holes are horizontally aligned with the second vertical holes and the third vertical holes; elastic pieces connected between the two rotating baffles.

[0016] Beneficial effects: 1. Through the cooperation of the rotating frame and the fixed frame, and the first sealing ring to ensure the sealing performance between the two, the present invention can form a closed space to simulate the actual working conditions. When testing the sealing performance of the valve stem seal, the engine oil in the closed space will not leak due to external factors, thus avoiding misjudgment. At the same time, when the valve stem seal leaks, due to a certain hydraulic pressure maintained inside the fixed frame and the rotating frame, any leakage will cause the engine oil to spray out from the gap between the valve body and the valve stem seal. This intuitive manifestation makes the test results more accurate and reliable.

[0017] 2. Through the action of the pressurization component, the present invention can automatically complete the process of injecting engine oil into the fixed frame and reaching the preset pressure, enabling the sealing performance test of valve oil seals of different models without manual intervention. In addition, by driving the sliding rod to move horizontally back and forth through the moving component to simulate the actual movement state of the valve, this can not only improve the test efficiency but also ensure the consistency of each test condition, further enhancing the reliability of the test results.

[0018] 3. The heating plate of the present invention can heat the engine oil during the test, enabling the valve oil seal to be in the optimal working temperature condition, closer to the actual operating environment, which helps to obtain more real sealing performance data. In addition, the setting of the second sealing ring and the square plate can effectively prevent the leakage of engine oil in the non-test area, ensuring the purity of the test environment. Coupled with the design of auxiliary structures such as the collection frame, top frame, and fixed baffle, it can not only collect the possibly leaked engine oil but also protect other parts of the equipment from contamination, extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0020] Figure 2 is a specific structural schematic diagram of the top of the mounting plate of the present invention.

[0021] Figure 3 is a three-dimensional structural schematic diagram of the present invention when the rotating frame is closed.

[0022] Figure 4 is an installation schematic diagram of the connection component of the present invention.

[0023] Figure 5 is a cooperation schematic diagram of the inclined block and the contact rod of the present invention.

[0024] Figure 6 is an installation schematic diagram of the locking component of the present invention.

[0025] Figure 7 is an installation schematic diagram of the pressurization component of the present invention.

[0026] Figure 8 is an internal structural schematic diagram of the fixed frame of the present invention.

[0027] Figure 9 is a cross-sectional view of the cylinder of the present invention.

[0028] Figure 10 is a cross-sectional view of the collection frame and the top frame of the present invention.

[0029] Figure 11 is a specific structural schematic diagram of the fixed baffle of the present invention.

[0030] Attached drawing reference numerals: 001 - valve body, 002 - valve oil seal, 1 - support frame, 2 - control panel, 3 - mounting plate, 4 - fixing frame, 5 - mold, 6 - rotating frame, 601 - first exhaust valve, 602 - intake valve, 7 - first sealing ring, 8 - support plate, 9 - sliding rod, 10 - return spring, 11 - sliding screw, 12 - locking bolt, 13 - nut, 14 - round plate, 15 - sliding bracket, 16 - pressing plate, 1601 - first vertical groove, 17 - guide rail, 18 - sliding seat, 19 - driving motor, 20 - rotating rod, 21 - inclined block, 22 - contact rod, 23 - connecting seat, 24 - lead screw, 25 - extension rod, 26 - connecting plate, 27 - clamping plate, 28 - elastic clamping rod, 29 - handle, 30 - fixing cylinder, 31 - second exhaust valve, 32 - connecting pipe, 33 - liquid pressure sensor, 34 - electric push rod, 35 - piston, 36 - waste discharge pipe, 37 - valve, 38 - waste liquid box, 39 - push handle, 40 - square plate, 41 - second sealing ring, 42 - cylinder, 4201 - through hole, 43 - push plate, 44 - connecting spring, 45 - heating plate, 46 - collection box, 47 - top box, 4701 - second vertical hole, 48 - fixed baffle, 4801 - third vertical hole, 49 - rotating baffle, 4901 - semi - circular hole, 50 - elastic piece. Detailed implementation mode

[0031] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in combination with the specific implementation mode and with reference to the attached drawings. It should be understood that these descriptions are exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the descriptions of well - known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0032] Embodiment: A testing device for the sealing performance of an automotive sealing ring part, as Figures 1-7As shown in the figure, it includes a support frame 1, a control panel 2, a mounting plate 3, a fixed frame 4, a mold 5, a rotating frame 6, a first sealing ring 7, a support plate 8, a sliding rod 9, a return spring 10, a connecting component, a moving component, a locking component and a boosting component. The control panel 2 is installed at the upper right part of the front side of the support frame 1. The top of the support frame 1 is connected to the mounting plate 3. The left side of the top of the mounting plate 3 is connected to the fixed frame 4. The mold 5 is placed on the upper part of the fixed frame 4. The left side of the top of the mounting plate 3 is rotatably connected to the rotating frame 6. The rotating frame 6 is located on the left side of the fixed frame 4. A notch is formed in the upper part of the rotating frame 6, and the shape of the notch is adapted to the outer wall of the mold 5. The rotating frame 6 can be rotated downward to cover the top of the fixed frame 4 and can be attached to the outer wall of the mold 5, so that the fixed frame 4 and the rotating frame 6 can cooperate to clamp the mold 5. A first exhaust valve 601 and an intake valve 602 are also installed on the rotating frame 6. The first exhaust valve 601 only exhausts and does not drain liquid. The right side of the rotating frame 6 is connected to the first sealing ring 7. When the rotating frame 6 covers the top of the fixed frame 4, the first sealing ring 7 will contact the top of the fixed frame 4 to play a sealing role. The middle of the top of the mounting plate 3 is connected to the support plate 8. The upper part of the support plate 8 is slidably connected to the sliding rod 9. The right part of the outer side of the sliding rod 9 is wound with the return spring 10, and both ends of the return spring 10 are respectively connected to the upper right part of the support plate 8 and the right end of the sliding rod 9. A connecting component for connecting the sliding rod 9 and the valve body 001 is provided on the top of the mounting plate 3. A moving component for driving the sliding rod 9 to perform horizontal reciprocating movement is also provided on the top of the mounting plate 3. A locking component for locking the rotating frame 6 is provided on the fixed frame 4. A boosting component for delivering oil to the fixed frame 4 and boosting it is provided on the support frame 1.

[0033] As Figure 4 shown, the connecting component includes a sliding screw 11, a locking bolt 12, a nut 13, a round plate 14, a sliding frame 15 and a pressing plate 16. The left end of the sliding rod 9 is slidably connected to the sliding screw 11. The right side of the top of the sliding screw 11 is threadedly connected to the locking bolt 12, and the bottom of the locking bolt 12 is in contact and cooperation with the top of the sliding rod 9. The nut 13 is threadedly connected to the outer side of the sliding screw 11. The left end of the sliding screw 11 is connected to the round plate 14. The lower part of the round plate 14 is slidably connected to the sliding frame 15, and the right part of the sliding frame 15 is sleeved on the outer side of the sliding screw 11. The left side of the sliding frame 15 is connected to the pressing plate 16, and a first vertical groove 1601 is formed in the pressing plate 16. The pressing plate 16 is located on the left side of the round plate 14, and the pressing plate 16 and the round plate 14 can cooperate to fix the right end of the valve body 001.

[0034] As Figure 2 and Figure 5As shown in the figure, the moving component includes a guide rail 17, a sliding seat 18, a driving motor 19, a rotating rod 20, an inclined block 21, a contact rod 22 and an adjusting mechanism. On the top right side of the mounting plate 3, the guide rails 17 are symmetrically connected front and back. A sliding seat 18 is slidably connected between the two guide rails 17. On the top right side of the sliding seat 18, a driving motor 19 is installed. On the left side of the upper part of the sliding seat 18, a rotating rod 20 is rotatably connected, and the right end of the rotating rod 20 is connected to the output shaft of the driving motor 19. The left end of the rotating rod 20 is connected to an inclined block 21. The left side of the inclined block 21 is an inclined surface. The right end of the sliding rod 9 is connected to a contact rod 22. The right end of the contact rod 22 is an arc surface, and the arc surface of the contact rod 22 is in contact and cooperation with the inclined surface of the inclined block 21. On the top of the mounting plate 3, an adjusting mechanism is provided for adjusting the horizontal position of the sliding seat 18. The adjusting mechanism includes a connecting seat 23, a lead screw 24 and an extension rod 25. On the top right side of the mounting plate 3, two connecting seats 23 are connected. A lead screw 24 is rotatably connected between the two connecting seats 23. The lower part of the sliding seat 18 is threadedly connected to the lead screw 24. The right end of the lead screw 24 is connected to an extension rod 25.

[0035] As Figure 6 shown in the figure, the locking component includes a connecting plate 26, a clamping plate 27, an elastic clamping rod 28 and a handle 29. On the right parts of the front and back sides of the fixed frame 4, connecting plates 26 are connected. On the top of the two connecting plates 26, clamping plates 27 are connected. On the upper parts of the front and back sides of the rotating frame 6, elastic clamping rods 28 are connected. When the rotating frame 6 covers the top of the fixed frame 4, the end of the elastic clamping rod 28 will be clamped on the clamping plate 27 for locking the rotating frame 6. A handle 29 is connected between the two elastic clamping rods 28.

[0036] As Figure 7 shown in the figure, the pressurizing component includes a fixed cylinder 30, a second exhaust valve 31, a connecting pipe 32, a liquid pressure sensor 33, an electric push rod 34, a piston 35 and a waste discharging mechanism. In the middle of the upper part of the support frame 1, a fixed cylinder 30 is connected. On the top left side of the fixed cylinder 30, a second exhaust valve 31 is installed. The second exhaust valve 31 only exhausts gas and does not drain liquid. On the left side of the fixed cylinder 30, a connecting pipe 32 is connected and kept in communication. The upper end of the connecting pipe 32 penetrates through the top of the mounting plate 3 and is in communication with the inside of the fixed frame 4. A liquid pressure sensor 33 is installed on the connecting pipe 32. On the upper right side of the support frame 1, an electric push rod 34 is installed. In the fixed cylinder 30, a piston 35 is slidably connected, and the right side of the piston 35 is connected to the telescopic rod of the electric push rod 34. On the connecting pipe 32, a waste discharging mechanism is provided for discharging the waste engine oil. The waste discharging mechanism includes a waste discharging pipe 36, a valve 37 and a waste liquid box 38. The bottom of the connecting pipe 32 is connected to a waste discharging pipe 36 and kept in communication. A valve 37 is installed on the waste discharging pipe 36. On the lower left side of the support frame 1, a waste liquid box 38 is placed, and the waste liquid box 38 is located directly below the waste discharging pipe 36.

[0037] Initially, the piston 35 is located on the right side inside the fixed cylinder 30, and the valve 37 is in the closed state; when it is necessary to test the sealing performance of the valve oil seal 002, first pour an appropriate amount of engine oil into the connecting pipe 32, and the engine oil will enter the fixed cylinder 30 through the connecting pipe 32, and the air in the fixed cylinder 30 will be discharged outward through the second exhaust valve 31. Then, pass the valve body 001 through the mold 5, and then slip the valve oil seal 002 onto the left end of the valve body 001, and make the right part of the valve oil seal 002 sleeved on the left part of the mold 5. The position of the valve oil seal 002 can be fixed by the mold 5, and the valve oil seal 002 is in sliding sealing contact with the valve body 001. Then, place the mold 5 on the upper right side of the fixed frame 4, and make the right end of the valve body 001 pass through the first vertical groove 1601, and the right end of the valve body 001 is located between the circular plate 14 and the pressing plate 16. Then, turn the rotating frame 6 downward to close it. The rotating frame 6 can drive the elastic clamping rod 28 to rotate downward. When the elastic clamping rod 28 contacts the clamping plate 27, the clamping plate 27 will squeeze the elastic clamping rod 28 to bend rightward and deform. When the elastic clamping rod 28 separates from the clamping plate 27, the elastic clamping rod 28 will return to its original state due to its own elasticity, causing the clamping plate 27 to clamp the elastic clamping rod 28, so as to lock the rotating frame 6. At this time, the fixed frame 4 and the rotating frame 6 cooperate to clamp the mold 5, and the first sealing ring 7 plays a sealing role, forming a sealed space inside the fixed frame 4 and the rotating frame 6, and the valve oil seal 002 is located in the above-mentioned sealed space;Then rotate the nut 13, and under the action of the sliding screw 11, the nut 13 moves to the right, the nut 13 will squeeze the sliding frame 15 to move to the right, the sliding frame 15 drives the pressure plate 16 to move to the right, so that the pressure plate 16 and the circular plate 14 cooperate to clamp the right end of the valve body 001, and then control the electric push rod 34 through the control panel 2 to drive the piston 35 to move to the left, the piston 35 will push the oil in the fixed cylinder 30 into the fixed frame 4 and the rotating frame 6 through the connecting pipe 32, and the air inside the fixed frame 4 and the rotating frame 6 can be discharged outward through the first exhaust valve 601 until the fixed frame 4 and the rotating frame 6 are filled with oil. At this time, the oil in the fixed cylinder 30 continues to be discharged, and the hydraulic pressure inside the connecting pipe 32, the fixed frame 4 and the rotating frame 6 will gradually When the hydraulic pressure detected by the liquid pressure sensor 33 reaches the preset value, the liquid pressure sensor 33 sends a signal. After receiving the signal, the control panel 2 will control the electric push rod 34 to stop working, and then control the drive motor 19 through the control panel 2 to drive the rotating rod 20 to rotate, and the rotating rod 20 drives the inclined block 21 to rotate. When the protruding part of the inclined block 21 contacts the contact rod 22, the inclined block 21 will squeeze the contact rod 22 to move to the left, and the contact rod 22 drives the sliding rod 9 to move to the left. The return spring 10 is compressed, and the sliding rod 9 can drive the valve body 001 to move to the left through the sliding screw 11, the circular plate 14 and the pressure plate 16. Subsequently, when the protruding part of the inclined block 21 gradually moves away from the contact rod 22, the return spring 10 will return to its original state, driving The slide bar 9 and the contact rod 22 move rightward to reset, and the slide bar 9 can drive the valve body 001 to move rightward to reset through the sliding screw 11, the circular plate 14 and the pressure plate 16. This reciprocating movement can drive the valve body 001 to move back and forth to simulate the movement in the valve cylinder. When the valve oil seal 002 leaks, since there is a certain hydraulic pressure inside the fixed frame 4 and the rotating frame 6, the engine oil will spray to the right from the gap between the valve body 001 and the valve oil seal 002, thereby intuitively indicating that the valve oil seal 002 has leaked, ensuring the accuracy of the test results. After the test is completed, the control panel 2 is used to control the drive motor 19 to stop working, so that the valve body 001 stops moving, and then the control panel 2 is used to control the electric push rod 34 The driving piston 35 moves rightward to reset, so that the oil inside the fixed frame 4 and the rotating frame 6 can be pumped back into the fixed cylinder 30 through the connecting pipe 32, and the outside air can enter the fixed frame 4 and the rotating frame 6 through the intake valve 602, so that the air pressure inside the fixed frame 4 and the rotating frame 6 remains stable, and then the nut 13 is reversed to make the nut 13 move leftward, and the nut 13 drives the pressure plate 16 to move leftward away from the circular plate 14, so that the pressure plate 16 can loosen the right end of the valve body 001, and then the handle 29 is bent to the right, which can pull the elastic clamping rod 28 to bend to the right and deform, so that the elastic clamping rod 28 is separated from the clamping plate 27, and then the rotating frame 6 can be rotated upward to open, and then the handle 29 is loosened, and the elastic clamping rod 28 will return to its original state, and then the mold 5 can be taken out;When it is necessary to test valve oil seals 002 and valve bodies 001 of different models, it is necessary to replace the molds 5 of different models. Then, it is necessary to loosen the locking bolts 12, and then move the sliding screw rod 11 to the left or right. The sliding screw rod 11 can drive the circular plate 14, the sliding frame 15 and the pressing plate 16 to move. In this way, the initial positions of the circular plate 14 and the pressing plate 16 can be adjusted according to the different lengths of the valve body 001. After adjustment, tighten the locking bolts 12 to fix the positions of the sliding screw rod 11, the circular plate 14, the sliding frame 15 and the pressing plate 16. When the mold 5 is installed, the valve body 001 can accurately pass through the first vertical groove 1601, and the right end of the valve body 001 is located between the circular plate 14 and the pressing plate 16. In this way, the cooperation of the circular plate 14 and the pressing plate 16 can clamp and fix valve bodies 001 of different lengths. Then, it is also necessary to rotate the extension rod 25 clockwise or counterclockwise. The extension rod 25 drives the lead screw 24 to rotate forward and backward. The lead screw 24 can drive the sliding seat 18 to move to the left or right. The sliding seat 18 drives the rotating rod 20 and the inclined block 21 to move to the left or right. Thus, the distance between the inclined block 21 and the contact rod 22 can be adjusted according to the different movement strokes of the valve body 001 to adapt to the different movement strokes of the valve body 001. When it is necessary to change the oil, just open the valve 37, and then control the piston 35 to move to the left to push out the oil in the fixed cylinder 30. The oil in the fixed cylinder 30 can fall downward through the connecting pipe 32 and the waste discharge pipe 36 into the waste liquid frame 38 for unified treatment. Finally, close the valve 37.;

[0038] As Figure 8 and Figure 9 shown, it also includes a push handle 39, a square plate 40, a second sealing ring 41, a cylinder 42, a push plate 43, a connecting spring 44 and a heating plate 45. A push handle 39 is slidably connected to the left side of the fixed frame 4. The right side of the push handle 39 is connected to a square plate 40. The outer side of the square plate 40 is connected to a second sealing ring 41, and the second sealing ring 41 is in contact with the inner wall of the fixed frame 4. The middle of the square plate 40 is connected to a cylinder 42. The right side of the cylinder 42 is of an open design, and a through hole 4201 is opened on the left side of the top of the cylinder 42. A push plate 43 is slidably connected inside the cylinder 42, and a connecting spring 44 is arranged inside the cylinder 42. The two ends of the connecting spring 44 are respectively connected to the left side of the push plate 43 and the left inner wall of the cylinder 42. Heating plates 45 are symmetrically installed on the front and back sides of the right inner wall of the fixed frame 4.

[0039] When the rotating frame 6 rotates downward to close, the second sealing ring 41 will fit against the inner wall of the rotating frame 6, and the second sealing ring 41 functions as a seal. When the engine oil enters the interior of the fixed frame 4 and the rotating frame 6 through the connecting pipe 32, the square plate 40 will block the engine oil, causing the engine oil to be only on the right side of the square plate 40. The push handle 39 on the left side of the square plate 40 will not be contaminated by the engine oil. Moreover, the engine oil will push the push plate 43 to move leftward, compressing the connecting spring 44, allowing some engine oil to enter the cylinder 42. The air in the cylinder 42 will be discharged outward through the through hole 4201. When the push plate 43 moves to the left side inside the cylinder 42, the push plate 43 will block the through hole 4201 to prevent the engine oil from leaking at the through hole 4201. During the testing process of the valve oil seal 002, the engine oil inside the fixed frame 4 and the rotating frame 6 can be heated by the heating plate 45, so as to simulate the working environment of the in-cylinder oil seal, enabling the valve oil seal 002 to reach the optimal operating temperature, and thus making the sealing test result of the valve oil seal 002 more accurate. When the engine oil inside the fixed frame 4 and the rotating frame 6 is pumped back into the fixed cylinder 30, the connecting spring 44 will return to its original state, driving the push plate 43 to move rightward to reset. The push plate 43 can push the engine oil inside the cylinder 42 out, and then push the push handle 39 to move rightward. The push handle 39 can drive the square plate 40 to move rightward. The square plate 40 can scrape off the engine oil adhering to the inner wall of the fixed frame 4 and the inner wall of the rotating frame 6, causing the engine oil to be pumped back into the fixed cylinder 30 to prevent the engine oil from dripping onto the mounting plate 3. When the square plate 40 moves to the right side inside the fixed frame 4, under the action of the connecting spring 44, the left end of the valve body 001 can push the push plate 43 into the cylinder 42, and the left end of the valve body 001 and the valve oil seal 002 can enter the cylinder 42, thus not affecting the movement of the square plate 40. Then, the push handle 39 is pulled leftward to reset, and the push handle 39 can drive the square plate 40 to move leftward to reset, causing the push plate 43 to separate from the left end of the valve body 001, and the connecting spring 44 can drive the push plate 43 to move to reset.

[0040] Such as Figure 1 , Figure 10 and Figure 11As shown in the figure, it further includes a collection box 46, a top box 47, a fixed baffle 48, a rotating baffle 49 and a spring piece 50. The collection box 46 is placed on the top of the mounting plate 3. The collection box 46 is located between the fixed frame 4 and the support plate 8. The top box 47 is placed on the top of the collection box 46. Second vertical holes 4701 are opened on both the left and right sides of the top box 47. The right part of the mold 5 is located in the left second vertical hole 4701. The sliding rod 9 passes through the right second vertical hole 4701, so that the entire connection assembly is located inside the top box 47. A fixed baffle 48 is connected to the left side inside the top box 47. The entire connection assembly is located on the right side of the fixed baffle 48. A third vertical hole 4801 is opened in the middle of the lower part of the fixed baffle 48. Two rotating baffles 49 are symmetrically rotatably connected to the front and back of the right side of the fixed baffle 48. Semi-circular holes 4901 are opened in the middle of the two rotating baffles 49. Notches are provided on the sides where the lower parts of the two rotating baffles 49 are close to each other. When the two rotating baffles 49 are in contact with each other, the two semi-circular holes 4901 can form a circular hole, and the above circular hole is horizontally aligned with the second vertical hole 4701 and the third vertical hole 4801. A spring piece 50 is connected between the upper parts of the two rotating baffles 49.

[0041] After the valve oil seal 002 and the valve body 001 are fixedly installed, the collection box 46 can be placed between the fixed frame 4 and the support plate 8, so that the collection box 46 is located below the valve body 001. Then the top box 47 is placed on the top of the collection box 46, so that the valve body 001 can pass through the second vertical hole 4701 and the third vertical hole 4801. When the notch at the lower end of the rotating baffle 49 contacts the valve body 001, the valve body 001 will squeeze the two rotating baffles 49 to rotate away from each other, and the spring piece 50 will deform. When the valve body 001 is aligned with the semi-circular hole 4901, the spring piece 50 will return to its original state, driving the two rotating baffles 49 to rotate and reset towards each other, so that the inner wall of the semi-circular hole 4901 contacts the surface of the valve body 001, and the rotating baffle 49 blocks the right side of the third vertical hole 4801. At this time, the right end of the valve oil seal 002 is located inside the top box 47. When the valve oil seal 002 leaks during the test, the oil will spray out to the right from the gap between the valve oil seal 002 and the valve body 001. Both the fixed baffle 48 and the rotating baffle 49 can block the sprayed oil to prevent the oil from spraying on the connection assembly. Then the oil will fall down into the collection box 46 for subsequent unified treatment.

[0042] The above is only the specific implementation manner of the present invention, but 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 can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention.

Claims

1. An automotive sealing ring part sealing performance testing device, comprising: a support frame (1); characterized in that, It further includes: a control panel (2), installed on the side of the support frame (1); a mounting plate (3), connected to the top of the support frame (1); a fixing frame (4), connected to the top of the mounting plate (3); a mold (5), placed on the fixing frame (4); a rotating frame (6), rotatably connected to the top of the mounting plate (3), and a first exhaust valve (601) and an intake valve (602) are installed on the rotating frame (6); a first sealing ring (7), connected to the rotating frame (6), and the first sealing ring (7) is in contact and cooperation with the top of the fixing frame (4); a support plate (8), connected to the top of the mounting plate (3); a sliding rod (9), slidably connected to the support plate (8); a return spring (10), wound around the outside of the sliding rod (9), and both ends of the return spring (10) are respectively connected to the support plate (8) and the sliding rod (9); a connecting component, arranged on the top of the mounting plate (3) for connecting the sliding rod (9) and the valve body (001); a moving component, arranged on the top of the mounting plate (3) for driving the sliding rod (9) to perform horizontal reciprocating movement; a locking component, arranged on the fixing frame (4) for locking the rotating frame (6); a boosting component, arranged on the support frame (1) for delivering engine oil into the fixing frame (4) and boosting it.

2. The sealing performance testing device for an automotive sealing ring part according to claim 1, characterized in that, The connecting component includes: a sliding screw (11), connected to the end of the sliding rod (9); a locking bolt (12), threadedly connected to the top of the sliding screw (11), and the locking bolt (12) is in contact and cooperation with the surface of the sliding rod (9); a nut (13), threadedly connected to the outside of the sliding screw (11); a circular plate (14), connected to the end of the sliding screw (11); a sliding frame (15), slidably connected to the circular plate (14), and the sliding frame (15) is sleeved on the outside of the sliding screw (11); a pressing plate (16), connected to the sliding frame (15), and a first vertical groove (1601) through which the valve body (001) can pass is formed on the pressing plate (16).

3. The sealing performance testing device for an automotive sealing ring part according to claim 2, characterized in that The moving component includes: guide rails (17), symmetrically connected to the top of the mounting plate (3); a sliding seat (18), slidably connected to the guide rails (17); a driving motor (19), installed on the top of the sliding seat (18); a rotating rod (20), rotatably connected to the sliding seat (18), and one end of the rotating rod (20) is connected to the output shaft of the driving motor (19); an inclined block (21), connected to the other end of the rotating rod (20); a contact rod (22), connected to the end of the sliding rod (9), and the contact rod (22) is in contact with the inclined surface of the inclined block (21); an adjusting mechanism, arranged on the top of the mounting plate (3) for adjusting the horizontal position of the sliding seat (18).

4. An automotive seal ring part sealing performance testing device according to claim 3, characterized in that, The adjusting mechanism includes: connecting seats (23), symmetrically connected to the top of the mounting plate (3); a lead screw (24), rotatably connected to the connecting seats (23), and the sliding seat (18) is threadedly connected to the lead screw (24); an extension rod (25), connected to the end of the lead screw (24).

5. An automotive sealing ring part sealing performance testing device according to claim 4, characterized in that, The locking component includes: a connecting plate (26) symmetrically connected to both sides of the fixed frame (4); a clamping plate (27) connected to the top of the connecting plate (26); elastic clamping rods (28) symmetrically connected to both sides of the rotating frame (6), and the elastic clamping rods (28) are in contact and cooperation with the clamping plate (27); and a handle (29) connected to the elastic clamping rods (28).

6. An automotive seal part sealing performance testing device according to claim 5, characterized in that, The pressurizing component includes: a fixed cylinder (30) connected to the support frame (1); a second exhaust valve (31) installed on the top of the fixed cylinder (30); a connecting pipe (32) connected to the side of the fixed cylinder (30) and kept communicating, and the upper end of the connecting pipe (32) penetrates through the top of the mounting plate (3) and communicates with the inside of the fixed frame (4); a liquid pressure sensor (33) installed on the connecting pipe (32); an electric push rod (34) installed on the support frame (1); a piston (35) slidably connected inside the fixed cylinder (30), and the side of the piston (35) is connected to the telescopic rod of the electric push rod (34); and a waste discharging mechanism arranged on the connecting pipe (32) for discharging waste engine oil.

7. An automotive seal part sealing performance testing device according to claim 6, characterized in that, The waste discharging mechanism includes: a waste discharging pipe (36) connected to the bottom of the connecting pipe (32) and kept communicating; a valve (37) installed on the waste discharging pipe (36); and a waste liquid box (38) placed on the support frame (1), and the waste liquid box (38) is located directly below the waste discharging pipe (36).

8. An automotive seal part sealing performance testing device according to claim 7, characterized in that, It further includes: a push handle (39) slidably connected to the fixed frame (4); a square plate (40) connected to the end of the push handle (39); a second sealing ring (41) connected to the outside of the square plate (40), and the second sealing ring (41) fits against the inner wall of the fixed frame (4); a cylinder (42) connected to the square plate (40), and a through hole (4201) is opened at the top of the cylinder (42); a push plate (43) slidably connected inside the cylinder (42); and a connecting spring (44) connecting the push plate (43) and the cylinder (42).

9. An automotive seal part sealing performance testing device according to claim 8, characterized in that, It further includes: heating plates (45) symmetrically installed on the inner wall of the fixed frame (4).

10. A sealing performance testing device for an automotive sealing ring part according to claim 9, characterized in that, It further includes: a collection box (46) placed on the top of the mounting plate (3); a top frame (47) placed on the top of the collection box (46), and second vertical holes (4701) are opened on both sides of the top frame (47); a fixed baffle (48) connected to the inner wall of the top frame (47), and a third vertical hole (4801) is opened on the fixed baffle (48); rotating baffles (49) symmetrically rotatably connected to the sides of the fixed baffle (48), and semi-circular holes (4901) are opened on the rotating baffles (49), and the semi-circular holes (4901) are horizontally aligned with the second vertical holes (4701) and the third vertical holes (4801); and elastic pieces (50) connected between the two rotating baffles (49).

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