Hydraulic valve structure applied to automobile

Abstract

The invention relates to the technical field of hydraulic valves, in particular to a hydraulic valve structure applied to an automobile, a one-way valve element comprises a first valve element and a second valve element, a first closing spring is arranged between the first valve element and the inner wall of a mounting seat, and a second closing spring is arranged between the second valve element and the inner wall of the mounting seat; a first closing sealing ring and a second closing sealing ring are fixedly connected into the mounting base, the first closing sealing ring makes contact with the first valve element, and the second closing sealing ring makes contact with the second valve element. The first valve element and the second valve element are arranged in the mounting base, when the first valve element is blocked by foreign matter, the second valve element can normally work to close the valve, and backflow of hydraulic oil is avoided; and when the second valve element is stuck, the first valve element can normally work to close the valve, and backflow of hydraulic oil is avoided, so that the two valve elements are integrated into one mounting base, the situation that when any one of the valve elements is stuck by foreign matter, the other valve element can continue to work is avoided, the valve can be normally closed, and safety in the driving process is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic valves, and in particular to a hydraulic valve structure used in automobiles. Background Art

[0002] A one-way valve is installed in the hydraulic system of a car's clutch. The one-way valve is mainly used to prevent oil backflow and ensure the normal operation of the hydraulic system. When the clutch pedal is pressed, the one-way valve opens and the oil pushes the piston to separate the clutch. When the pedal is released, the one-way valve closes to prevent oil backflow, maintain system pressure, ensure smooth engagement of the clutch, and avoid problems such as slipping and incomplete separation.

[0003] In the automobile clutch hydraulic system, there may be problems such as clutch friction plate wear, oil pump gear meshing and valve core high-frequency impact on the valve seat. These problems will generate metal or non-metallic particles. Some particles are easily generated downstream of the filtering device and cannot be intercepted by the fuel tank filter, and flow directly to the valve. When the valve core is closed, if the foreign object happens to pass between the valve core and the sealing ring, and then gets stuck between the valve core and the sealing ring, if the foreign object is large, it will seriously affect the closing of the one-way valve, and the pressure of the clutch hydraulic system cannot be maintained during driving. After pressing the pedal to disengage the clutch, the clutch cannot engage normally due to the continuous backflow of oil when it is released, resulting in interruption of power transmission and sudden loss of driving force for the vehicle. It is easy to cause rear-end collision, loss of control and other dangers when driving at high speed or in complex road conditions.

[0004] In response to the above problems, the existing technology provides some solutions. For example, patent application number CN202421798348.5 provides a one-way valve and a hydraulic system. The conventional solution is to set an additional filter device near the one-way valve core. However, if too many filters are set in the automobile clutch hydraulic system, the oil flow resistance will be significantly increased, resulting in increased system pressure loss, slow clutch action or even incomplete separation. At the same time, too many filter elements are prone to accumulate impurities and form blockages, affecting the hydraulic oil circulation efficiency. It will also cause pipeline leakage or component damage due to excessive local pressure, reducing system reliability and increasing maintenance costs. Summary of the Invention

[0005] The purpose of the present invention is to provide a hydraulic valve structure for automobiles to solve the problem that large foreign objects are stuck between the valve core and the sealing ring, causing the one-way valve to be unable to close and affecting the driving safety of the automobile.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A hydraulic valve structure for automobiles includes a mounting seat, a one-way valve core is slidably connected to the interior of the mounting seat, the one-way valve core is in contact with the mounting seat, the one-way valve core includes valve core 1 and valve core 2, both valve core 1 and valve core 2 are slidably connected to the interior of the mounting seat, a closing spring 1 is provided between the valve core 1 and the inner wall of the mounting seat, a closing spring 2 is provided between the valve core 2 and the inner wall of the mounting seat, and a closing sealing ring 1 and a closing sealing ring 2 are fixedly connected to the interior of the mounting seat, the closing sealing ring 1 is in contact with the valve core 1, and the closing sealing ring 2 is in contact with the valve core 2.

[0008] It is easy to understand that the design sets valve core 1 and valve core 2 inside the mounting seat. When valve core 1 is stuck by foreign objects, valve core 2 will work normally to close the valve to prevent the hydraulic oil from flowing back. When valve core 2 is stuck, valve core 1 will work normally to close the valve to prevent the hydraulic oil from flowing back. Therefore, the design integrates the two valve cores into one mounting seat, avoiding the situation where when foreign objects jam one of the valve cores, the other valve core can continue to work, allowing the valve to close normally and ensuring safety during driving.

[0009] Preferably, a telescopic rod 1 is fixedly connected to the interior of the mounting seat, a pressure chamber 1 is provided inside the telescopic rod 1, a telescopic rod 2 is slidably connected to the interior of the pressure chamber 1, the surface of the telescopic rod 2 is in contact with the inner wall of the pressure chamber 1, a pressure chamber 2 is provided inside the telescopic rod 2, the pressure chamber 1 is communicated with the pressure chamber 2, one end of the telescopic rod 2 is fixedly connected to a connecting block, a pressure chamber 3 is provided inside the connecting block, the pressure chamber 3 is communicated with the pressure chamber 2, a hinged ball is fixedly connected to the valve core 2, the hinged ball is ball-connected to the connecting block, a pressure push plate is slidably and sealingly connected to the interior of the pressure chamber 3, the pressure push plate and the pressure chamber 3 are sealed, one end of the pressure push plate is fixedly connected to a thrust rod, and the thrust rod is connected to The hinged ball is in contact, and a circular ring protrusion is fixedly connected to the hinged ball. A pressure spring is arranged between the surface of the pressure push plate and the inner wall of the pressure chamber three. One end of the telescopic rod one is slidably connected with a connecting valve. A connecting chamber is opened inside the connecting valve, and the connecting chamber is respectively connected with the interior of the mounting seat and the pressure chamber one. A reset spring one is arranged between the connecting valve and the inner wall of the pressure chamber one. The connecting valve is in contact with the valve core one. The inner wall diameter of the pressure chamber one is A, the inner wall diameter of the pressure chamber two is B, and the inner wall diameter of the pressure chamber three is C, and C>A>B. A sliding component is arranged on the valve core two, and the sliding component is used to drive the valve core two to continue to move toward the closing sealing ring two when the connecting chamber port is completely blocked by the telescopic rod one.

[0010] It is easy to understand that when the valve is closed, the valve core 1 and the valve core 2 may be stuck by foreign matter at the same time. When the valve core 1 is stuck by the foreign matter, the other one will continue to work to make the valve close normally. However, at this time, the valve core 1 will continue to be stuck by the foreign matter, and due to the pressure of the hydraulic oil and the thrust of the return spring 1, the valve core will exert a large pressure to clamp the foreign matter between the valve core and the sealing ring. In addition, the size of the foreign matter is large, so under long-term clamping, indentations will be formed on the valve core and the sealing ring, which will affect the valve core and the sealing ring. In order to improve the sealing performance of the sealing ring, the design sets a telescopic rod 1 inside the mounting seat. When the valve is closed, the valve core 1 and the valve core 2 move at the same time. The movement of the valve core 2 will drive the telescopic rod 2 to move. At this time, hydraulic oil will be sucked into the pressure chamber 1 and the pressure chamber 2. At this time, due to the friction between the telescopic rod 1 and the telescopic rod 2, the movement speed of the valve core 2 will be slightly slower than the movement speed of the valve core 1. When the valve core 1 is closed and stuck by foreign objects, the valve core 1 will push the vent valve, and the connecting chamber on the vent valve will completely enter the pressure chamber 1 and be If the valve core is blocked, the sliding assembly causes the valve core 2 to continue moving toward the closing seal ring. If the valve core 2 is also stuck by foreign matter, the valve core 2 will be lifted up by the foreign matter and tilted. At this time, the valve core 2 will drive the hinge ball to rotate. During this process, the thrust rod will be pushed by the annular protrusion and move to the other side of the annular protrusion. At this time, the pressure push plate will move in the pressure chamber 3 and quickly reset. At this time, the internal pressure of the pressure chambers 1 and 2 will increase instantly. The connecting valve will be lifted up and the valve core 1 will be lifted up for a short time. At this time, the foreign matter trapped between the valve core 1 and the closing seal ring 1 loses pressure and is flushed away by the hydraulic oil, and the valve core 1 closes normally. At this time, due to the gradual leakage of hydraulic oil between the valve core 1 and the valve core 2, the pressure on the valve core 2 gradually decreases, and the pressure on the foreign matter decreases. Therefore, this design ensures that even if both valve core 1 and valve core 2 are stuck by foreign matter, the foreign matter on the valve core 1 and valve core 2 can be cleared away in sequence through the mutual linkage between the valve core 1 and the valve core 2, allowing the valve core 1 to close normally. This makes the valve adaptable to various situations and improves the adaptability of the valve.

[0011] Preferably, the connecting valve is rotatably connected to a rotating block, the rotating block is fixedly connected to an arc block, a sliding groove is provided on one surface of the valve core, both ends of the arc block are chamfered, and the arc block contacts the inner wall of the sliding groove, and when the valve core is tilted, the arc block is always located on the tilted side of the valve core.

[0012] This design allows the connecting valve to only lift the side of the valve core that is stuck by foreign matter, without lifting the valve core as a whole, thereby reducing the gap when the valve core is opened, reducing the leakage of hydraulic oil, and improving the pressure maintaining effect of the hydraulic system when the connecting valve is working.

[0013] Preferably, one end of the telescopic rod 1 is slidably connected to a sealing ring, a small sealing ring 1 is fixedly connected to the sealing ring, a connecting groove is provided on the surface of the connecting valve, the small sealing ring 1 contacts the inner wall of the connecting groove, and the sealing ring completely blocks the port of the connecting chamber located on the side of the connecting valve, and a small sealing ring 2 is fixedly connected to the telescopic rod 2, and the small sealing ring 1 contacts the inner wall of the pressure chamber 1.

[0014] It is easy to understand that when the connecting valve is moved by the pressure of the valve core 1, when the port of the connecting chamber is completely sealed, the connecting valve cannot move further, and the port of the connecting chamber will be close to the end face of the telescopic rod 1. At this time, when the connecting valve moves to push up the valve core 1, the connecting chamber will connect the pressure chamber 1 with the outside of the telescopic rod 1. At this time, the pressure inside the pressure chamber 1 and the pressure chamber 2 is reduced, which in turn causes the pressure applied by the connecting valve to the valve core 1 to decrease. At this time, if the foreign matter stuck on the valve core 1 is large, the connecting valve cannot completely push up the valve core 1, which in turn causes the foreign matter to be unable to be washed away by the hydraulic oil. This design connects the sealing ring by sliding it at one end of the telescopic rod. When the connecting valve is closed by the pressure of the valve core, the small sealing ring on the sealing ring will cooperate with the connecting groove on the surface of the connecting valve. At this time, the sealing ring will completely block the port of the connecting chamber located on the side of the connecting valve. When the connecting valve moves to lift the valve core, the connecting valve will drive the sealing ring to move together, so that the port of the connecting chamber is always in a sealed state during the process of the connecting valve moving to lift the valve core, so that the connecting valve can apply sufficient pressure to lift the valve core, thereby improving the reliability of the valve core.

[0015] Preferably, a connecting hole is provided on the telescopic rod 1, an end face of one side of the connecting hole contacts the surface of the connecting valve, a distance between the connecting hole and the end face of the telescopic rod 1 on the side close to the valve core 1 is X, a distance between the connecting chamber and the end face of the telescopic rod 1 on the side close to the valve core 1 is Y, and when the connecting valve moves to the maximum distance in the direction of the telescopic rod 2, X=Y.

[0016] It is easy to understand that when the valve core is not stuck by foreign matter, the valve core will not tilt, and the valve can be closed normally. However, if the valve core is stuck by foreign matter and tilts during the closing process, the connecting valve will still push up the valve core, thereby causing the hydraulic oil to leak unnecessarily. Therefore, the design opens a connecting hole on the telescopic rod. When the valve core is not stuck by foreign matter, the valve core will not tilt. When the valve core is stuck by foreign matter, the valve core will tilt. The distance moved by the valve core squeezing the connecting valve is different when the valve core is tilted and when it is not tilted. When the valve core is not tilted, the connecting hole will connect the connecting chamber with the telescopic rod. When the spool is closed, the valve core 2 will not move, and the spool 1 that has been closed will not be pushed forward. When the spool 1 is tilted, the communicating hole will not connect the communicating chamber with the outside of the telescopic rod 1, and the communicating chamber port will be blocked. At this time, the tilting of the spool 2 will drive the communicating valve to move, and the foreign matter stuck on the spool 1 will be cleaned up. Therefore, this design avoids the situation that when the spool 1 is normally closed but the spool 2 is stuck by foreign matter and tilts, the communicating valve will still lift the spool 1, thereby avoiding the unnecessary leakage of hydraulic oil and improving the pressure maintaining effect of the hydraulic system.

[0017] Preferably, the sliding assembly includes a limit block, the valve core 2 includes a rotating valve core and a sliding valve core, the rotating valve core is fixedly connected to the hinged ball, the sliding valve core is slidably connected to the rotating valve core, the number of the limit blocks is 2, and the two limit blocks are slidably connected to both sides of the sliding valve core, one end of the limit block contacts the end face of the rotating valve core, and the other end of the limit block extends to the outside of the sliding valve core. Limiting grooves are provided on both sides of the inner wall of the mounting seat, and the limit block contacts the inner wall of the limit groove. A reset spring 2 is arranged between the limit block and the sliding valve core, and one end of the closing spring 2 is connected to the sliding valve core.

[0018] It is easy to understand that when the valve core 1 is closed and stuck by foreign matter, the pressure chamber 1 and the pressure chamber 2 are completely sealed. At this time, the valve core 2 needs to squeeze the hydraulic oil inside the pressure chamber 1 and the pressure chamber 2 when continuing to move to close, which causes the speed of the valve core 2 to slow down when it is finally closed, and thus causes the leakage of the hydraulic oil to increase. Therefore, this design sets the valve core 2 as a rotating valve core and a sliding valve core. When the rotating valve core moves, it will drive the sliding valve core to move. When the valve core 1 is closed and stuck by foreign matter, the movement of the rotating valve core slows down, but the sliding valve core is unlocked at this time and then starts to slide under the pressure of the closing spring 2 and the hydraulic oil, and contacts the closing sealing ring 2 to complete the seal. Therefore, this design improves the closing speed of the valve core 2 when the valve core 1 is closed and stuck by foreign matter, reduces the leakage of hydraulic oil, and improves the pressure maintaining effect of the hydraulic system.

[0019] Preferably, four aligning blocks are evenly distributed on the inner circumference of the mounting seat, and the four aligning blocks are all fixedly connected to the inner wall of the mounting seat, and the four aligning blocks are all in contact with the sliding valve core.

[0020] It is easy to understand that when both valve core 1 and valve core 2 are stuck by foreign objects, valve core 2 will drive the connecting valve to lift valve core 1 and the foreign object on valve core 1 is cleaned up. However, the foreign object on valve core 2 is not cleaned up at this time, and valve core 2 is still in a tilted state. When the hydraulic oil pushes valve core 1 and valve core 2 to open, valve core 2 may be opened in a tilted state, thereby making it impossible for the thrust rod to be set on the other side of the circular protrusion to return to the middle of the articulated ball, thereby causing the valve core 1 and valve core 2 to be stuck by foreign objects next time. Valve core 2 cannot clean valve core 1. Therefore, this design is achieved by setting a valve in the mounting seat Four straightening blocks are provided. When the valve core 2 is opened in a tilted state, the tilted end of the valve core 2 will first contact one of the straightening blocks during the opening process. At this time, the pressure of the hydraulic oil continues to act on the valve core 2. When the valve core 2 contacts all four straightening blocks, the valve core 2 is in a straightened state, and the thrust rod will also be reset to the middle of the articulated ball during the straightening process of the valve core 2. Therefore, this design avoids the situation where the thrust rod cannot be reset to the middle of the articulated ball due to the valve core 2 being in a tilted state when it is opened, which in turn affects the cleaning of the valve core 1 by the valve core 2. Therefore, this design improves the reliability of the valve core 2.

[0021] Preferably, arc grooves are provided on both sides of the inner wall of the mounting seat, the axes of the arc grooves on both sides are collinear with an axis of the valve core, and a surface of the valve core is in contact with the inner wall of the arc groove.

[0022] It is easy to understand that when the valve core is closed, it is supported by the closing sealing ring 1, so the valve core 1 is fixed on the closing sealing ring 1 by the pressure of the hydraulic oil and the thrust of the closing spring 1. However, when the valve core 1 is in the open state, due to the lack of support, when the hydraulic oil flows through, it will impact the valve core 1, causing the valve core 1 to swing back and forth, which may cause the valve core 1 to collide with the inner wall of the mounting seat, causing wear of the inner wall of the mounting seat and the edge of the valve core 1. This design provides arc grooves on both sides of the inner wall of the mounting seat, and the surface of the valve core 1 fits with the inner wall of the arc groove. When the valve core 1 is closed, the valve core 1 will move away from the arc grooves on both sides. At this time, the valve core can rotate and tilt, but when the valve core 1 is opened, the two sides of the valve core 1 will be squeezed by the inner wall of the arc groove, thereby limiting the swing of the valve core 1, thereby avoiding the valve core 1 swinging back and forth and colliding with the inner wall of the mounting seat when in the open state, causing wear, thereby improving the service life of the valve core 1 and the mounting seat.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention arranges valve core 1 and valve core 2 inside the mounting seat. When valve core 1 is stuck by foreign matter, valve core 2 will work normally to close the valve to prevent hydraulic oil from flowing back. When valve core 2 is stuck, valve core 1 will work normally to close the valve to prevent hydraulic oil from flowing back. Therefore, this design integrates the two valve cores into one mounting seat, avoiding the situation where the other valve core can continue to work when a foreign matter blocks one of the valve cores, so that the valve can be closed normally, ensuring safety during driving.

[0025] 2. The present invention provides a telescopic rod 1 inside the mounting seat, so that even if the valve core 1 and the valve core 2 are both stuck by foreign objects, the foreign objects on the valve core 1 and the valve core 2 can be cleaned off in turn through the mutual linkage between the valve core 1 and the valve core 2, so that the valve core 1 can be closed normally. Therefore, the valve can adapt to various situations, thereby improving the adaptability of the valve.

[0026] 3. The present invention rotates the connecting rotating block on the connecting valve so that the connecting valve only needs to lift the side of the valve core that is stuck by foreign matter, without lifting the valve core as a whole, thereby reducing the gap when the valve core is opened, reducing the leakage of hydraulic oil, and improving the pressure maintaining effect of the hydraulic system when the connecting valve is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a hydraulic valve structure of an automobile applied to the present invention;

[0028] Figure 2 for Figure 1 Cross-sectional view at AA in the middle;

[0029] Figure 3 for Figure 2 Enlarged view of point B in the middle;

[0030] Figure 4 for Figure 2 Enlarged view of point C in the middle;

[0031] Figure 5 for Figure 2 Enlarged view of point D in the middle;

[0032] Figure 6 for Figure 2 Schematic diagram of the structure when the middle valve core is stuck by foreign matter;

[0033] Figure 7 for Figure 6 Enlarged view of point E in the middle;

[0034] Figure 8 for Figure 6 Enlarged view of point F in the middle.

[0035] Figure: 1. Mounting seat; 2. One-way valve core; 3. Valve core 1; 4. Valve core 2; 5. Closing spring 1; 6. Closing spring 2; 7. Closing seal ring 1; 8. Closing seal ring 2; 9. Telescopic rod 1; 10. Pressure chamber 1; 11. Telescopic rod 2; 12. Pressure chamber 2; 13. Connecting block; 14. Pressure chamber 3; 15. Articulated ball; 16. Pressure push plate; 17. Thrust rod; 18. Annular protrusion; 19 , connecting valve; 20, connecting chamber; 21, reset spring 1; 22, rotating block; 23, arc block; 24, slide groove; 25, sealing ring; 26, small sealing ring 1; 27, connecting groove; 28, small sealing ring 2; 29, connecting hole; 30, rotating valve core; 31, sliding valve core; 32, limit block; 33, limit groove; 34, reset spring 2; 35, arc groove; 36, pressure spring; 37, straightening block. DETAILED DESCRIPTION

[0036] The present invention provides a hydraulic valve structure for automobiles, and the technical solution is as follows:

[0037] See also Figures 1 to 8 A hydraulic valve structure used in automobiles includes a mounting seat 1, a one-way valve core 2 is slidably connected to the inside of the mounting seat 1, the one-way valve core 2 is in contact with the mounting seat 1, the one-way valve core 2 includes a valve core 1 3 and a valve core 2 4, both of which are slidably connected to the inside of the mounting seat 1, a closing spring 1 5 is provided between the valve core 1 3 and the inner wall of the mounting seat 1, a closing spring 2 6 is provided between the valve core 2 4 and the inner wall of the mounting seat 1, and a closing sealing ring 1 7 and a closing sealing ring 2 8 are fixedly connected to the inside of the mounting seat 1, the closing sealing ring 1 7 is in contact with the valve core 1 3, and the closing sealing ring 2 8 is in contact with the valve core 2 4.

[0038] For further information, see Figures 1 to 8, a telescopic rod 9 is fixedly connected to the mounting seat 1, a pressure chamber 10 is opened inside the telescopic rod 9, a telescopic rod 2 11 is slidably connected to the pressure chamber 10, the surface of the telescopic rod 2 11 is in contact with the inner wall of the pressure chamber 10, a pressure chamber 2 12 is opened inside the telescopic rod 2 11, the pressure chamber 10 is communicated with the pressure chamber 2 12, one end of the telescopic rod 2 11 is fixedly connected to a connecting block 13, a pressure chamber 3 14 is opened inside the connecting block 13, the pressure chamber 3 14 is communicated with the pressure chamber 2 12, a hinged ball 15 is fixedly connected to the valve core 2 4, the hinged ball 15 is ball-connected with the connecting block 13, a pressure push plate 16 is slidingly and sealingly connected to the pressure chamber 3 14, the pressure push plate 16 and the pressure chamber 3 14 are sealed, one end of the pressure push plate 16 is fixedly connected to a thrust rod 17, the thrust rod 17 is in contact with the hinged ball 15, and a circular protrusion 18 is fixedly connected to the hinged ball 15. A pressure spring 36 is provided between the surface of the push plate 16 and the inner wall of the pressure chamber 3 14, and a connecting valve 19 is slidably connected to one end of the telescopic rod 9. A connecting chamber 20 is provided inside the connecting valve 19, and the connecting chamber 20 is respectively connected to the interior of the mounting seat 1 and the pressure chamber 10. A return spring 21 is provided between the connecting valve 19 and the inner wall of the pressure chamber 10. The connecting valve 19 contacts the valve core 3, and a sliding assembly is provided on the valve core 24. The sliding assembly is used to drive the valve core 24 to continue to move toward the closing sealing ring 28 when the port of the connecting chamber 20 is completely blocked by the telescopic rod 9. A rotating block 22 is rotatably connected to the connecting valve 19, and an arc block 23 is fixedly connected to the rotating block 22. A slide groove 24 is provided on the surface of the valve core 3, and chamfers are provided at both ends of the arc block 23, and the arc block 23 contacts the inner wall of the slide groove 24. When the valve core 3 is tilted, the arc block 23 is always located on the tilted side of the valve core 3.

[0039] See also Figures 1 to 8, a sealing ring 25 is slidably connected to one end of the telescopic rod 19, a small sealing ring 26 is fixedly connected to the sealing ring 25, a connecting groove 27 is provided on the surface of the connecting valve 19, a small sealing ring 26 contacts the inner wall of the connecting groove 27, and the sealing ring 25 completely blocks the port of the connecting chamber 20 located on the side of the connecting valve 19, a small sealing ring 28 is fixedly connected to the telescopic rod 11, a small sealing ring 26 contacts the inner wall of the pressure chamber 10, and a connecting hole 29 is provided on the telescopic rod 19. The end face of the communicating hole 29 contacts the surface of the communicating valve 19. The distance between the communicating hole 29 and the end face of the telescopic rod 19 near the valve core 13 is X. The distance between the communicating chamber 20 and the end face of the telescopic rod 19 near the valve core 13 is Y. When the communicating valve 19 moves to the maximum distance in the direction of the telescopic rod 2 11, X=Y. The sliding assembly includes a limit block 32. The valve core 2 4 includes a rotating valve core 30 and a sliding valve core 31. The rotating valve core 30 is fixedly connected to the hinge ball 15. The sliding valve core 31 The slidable connection is on the rotating valve core 30, and the number of the limit blocks 32 is 2. The two limit blocks 32 are slidably connected to both sides of the sliding valve core 31. One end of the limit block 32 contacts the end surface of the rotating valve core 30, and the other end of the limit block 32 extends to the outside of the sliding valve core 31. The limit grooves 33 are provided on both sides of the inner wall of the mounting seat 1. The limit blocks 32 contact the inner wall of the limit grooves 33. A reset spring 2 34 is provided between the limit block 32 and the sliding valve core 31. One end of the closing spring 26 is connected to the sliding valve core 31. Next, the inner wall diameter of pressure chamber 10 is A, the inner wall diameter of pressure chamber 2 12 is B, and the inner wall diameter of pressure chamber 3 14 is C, C>A>B, arc grooves 35 are opened on both sides of the inner wall of the mounting seat 1, the axes of the arc grooves 35 on both sides are collinear with the axis of valve core 1 3, the surface of valve core 1 3 fits with the inner wall of the arc groove 35, and four aligning blocks 37 are evenly distributed on the inner circumference of the mounting seat 1, and the four aligning blocks 37 are fixedly connected to the inner wall of the mounting seat 1, and the four aligning blocks 37 are in contact with the sliding valve core 31.

[0040] See also Figures 1 to 8 When the valve is closed and there is no foreign matter stuck on the valve core 1 3 and the valve core 2 4, the valve core 1 3 and the valve core 2 4 are simultaneously subjected to the pressure of the hydraulic oil, the valve core 1 3 is also subjected to the thrust of the closing spring 1 5, and the valve core 2 4 is also subjected to the thrust of the closing spring 2 6. At this time, the valve core 1 3 and the valve core 2 4 move at the same time. When the valve core 1 3 approaches the closing sealing ring 1 7, one side of the valve core 1 3 contacts and squeezes the connecting valve 19. When the valve core 1 3 is completely closed, the connecting chamber 20 is aligned with the connecting hole 29. At this time, the rotating valve core 30 cannot move further. At this time, the limit blocks 32 on both sides of the valve core 2 4 leave the limit groove 33. The limit blocks 32 are pushed away from the rotating valve core 30 by the return spring 2 34. At this time, the sliding valve core 31 is pushed by the closing spring 2 6 to move and contact the closing sealing ring 2 8. At this time, the valve core 1 3 and the valve core 2 4 are both closed, and the valve realizes one-way sealing.

[0041] See also Figures 1 to 8When the valve is closed and a foreign object is stuck on the valve core 13, the valve core 13 and the valve core 24 are simultaneously subjected to the pressure of the hydraulic oil, the valve core 13 is also subjected to the thrust of the closing spring 15, and the valve core 24 is also subjected to the thrust of the closing spring 26. At this time, the valve core 13 and the valve core 24 move simultaneously. When the valve core 13 approaches the closing sealing ring 17, one side of the valve core 13 contacts and squeezes the connecting valve 19. At this time, the valve core 13 contacts the foreign object and tilts. At this time, the arc block 23 on the rotating block 22 is under pressure and rotates along the slide groove 24 to the tilted side of the valve core 13. The connecting chamber 20 is blocked by the inner wall of the telescopic rod 19. At this time, the rotating valve core 30 cannot move further. At this time, the limit blocks 32 on both sides of the valve core 24 leave the limit groove 33. The limit blocks 32 are pushed away from the rotating valve core 30 by the return spring 234. At this time, the sliding valve core 31 is pushed by the closing spring 26 to move and contact the closing sealing ring 28. At this time, the valve core 24 is completely closed and the valve realizes a one-way seal.

[0042] See also Figures 1 to 8 When the valve is closed and a foreign object is stuck on the valve core 24, the valve core 13 and the valve core 24 are simultaneously subjected to the pressure of the hydraulic oil, the valve core 13 is also subjected to the thrust of the closing spring 15, and the valve core 24 is also subjected to the thrust of the closing spring 26. At this time, the valve core 13 and the valve core 24 move simultaneously. When the valve core 13 approaches the closing sealing ring 17, one side of the valve core 13 contacts and squeezes the connecting valve 19. When the valve core 13 is completely closed, the connecting chamber 20 is aligned with the connecting hole 29. At this time, the rotating valve core 30 cannot move further. At this time, the limit blocks 32 on both sides of the valve core 24 leave the limit groove 33. The limit blocks 32 are pushed by the return spring 234 and move away from the rotating valve core 30. At this time, the sliding valve core 31 is pushed by the closing spring 26 to slide and get stuck with the foreign object. At this time, since the valve core 24 loses the support of the limit blocks 32 and the limit groove 33, it rotates and tilts around the hinged ball 15. At this time, the valve core 13 is completely closed and the valve realizes one-way sealing.

[0043] See also Figures 1 to 8When the valve is closed and both valve core 1 3 and valve core 2 4 are stuck with foreign objects, valve core 1 3 and valve core 2 4 are simultaneously subjected to the pressure of the hydraulic oil, valve core 1 3 is also subjected to the thrust of closing spring 1 5, and valve core 2 4 is also subjected to the thrust of closing spring 2 6. At this time, valve core 1 3 and valve core 2 4 move simultaneously. When valve core 1 3 approaches closing sealing ring 1 7, one side of valve core 1 3 contacts and squeezes connecting valve 19. At this time, valve core 1 3 contacts the foreign object and tilts. At this time, the arc block 23 on the rotating block 22 is subjected to pressure and rotates along the slide groove 24 to the tilted side of valve core 1 3. The connecting chamber 20 is blocked by the inner wall of telescopic rod 1 9. At this time, the rotating valve core 30 cannot continue to move. At this time, the limit blocks 32 on both sides of valve core 2 4 leave the limit groove 33. The limit blocks 32 are pushed away from the rotating valve core 30 by the return spring 2 34. At this time, the sliding valve core 31 is pushed by the closing spring 26 and the pressure of the hydraulic oil to slide quickly, hit and jam the foreign object. At this time, since the valve core 24 loses the support of the limit block 32 and the limit groove 33, it rotates and tilts around the hinge ball 15. During the rotation of the hinge ball 15, the thrust rod 17 will be pushed by the annular protrusion 18 and move to the other side of the annular protrusion 18. At this time, the pressure push plate 16 will move in the pressure chamber 3 14 and quickly reset. The internal pressure of the pressure chamber 10 and the pressure chamber 2 12 increases instantly. At this time, the connecting valve 19 will be pushed up, and the arc block 23 squeezes the inner wall of the slide groove 24 and opens the inclined side of the valve core 13 for a short time. At this time, the foreign object sandwiched between the valve core 13 and the closing sealing ring 17 loses pressure and is washed away by the hydraulic oil. At this time, the valve core 13 is closed and the valve realizes one-way sealing.

[0044] See also Figures 1 to 8 When the valve is opened, the hydraulic oil first pushes the valve core 2 4, and the sliding valve core 31 slides under pressure. At this time, the valve core 1 3 is also under the pressure of the hydraulic oil, and the valve core 1 3 and the valve core 2 4 move at the same time. When the valve core 2 4 moves, the telescopic rod 2 11 will slide along the telescopic rod 1 9. At this time, the connecting valve 19 is pushed out of the telescopic rod 1 9 by the return spring 1. When the valve core 2 4 moves a certain distance, the limit blocks 32 on both sides will contact the inner walls of the limit grooves 33 on both sides. At this time, the limit blocks 32 are squeezed and move and contact the rotating valve core 30. When the valve core 2 4 continues to move a certain distance, the four sides of the sliding valve core 31 will contact the straightening blocks 37 respectively, and the valve core 2 4 is straightened. At this time, the valve core 1 3 and the valve core 2 4 move to the maximum distance, and the valve is fully opened.

[0045] A specific embodiment of the present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the embodiment described above. For those skilled in the art, various changes, modifications, substitutions, and variations to these embodiments without departing from the principles and ideas of the present invention should still fall within the scope of protection of the present invention.

Claims

1. A hydraulic valve structure for automobiles, comprising a mounting seat (1), wherein a one-way valve core (2) is slidably connected to the interior of the mounting seat (1), and the one-way valve core (2) contacts the mounting seat (1), characterized in that: The one-way valve core (2) comprises a valve core 1 (3) and a valve core 2 (4), both of which are slidably connected to the inside of the mounting seat (1), a closing spring 1 (5) is provided between the valve core 1 (3) and the inner wall of the mounting seat (1), a closing spring 2 (6) is provided between the valve core 2 (4) and the inner wall of the mounting seat (1), and a closing sealing ring 1 (7) and a closing sealing ring 2 (8) are fixedly connected to the inside of the mounting seat (1), the closing sealing ring 1 (7) contacts the valve core 1 (3), and the closing sealing ring 2 (8) contacts the valve core 2 (4).

2. A hydraulic valve structure for automobiles according to claim 1, characterized in that: The mounting seat (1) is fixedly connected to a telescopic rod (9) inside, a pressure chamber (10) is provided inside the telescopic rod (9), a telescopic rod (11) is slidably connected inside the pressure chamber (10), the surface of the telescopic rod (11) is in contact with the inner wall of the pressure chamber (10), a pressure chamber (12) is provided inside the telescopic rod (11), the pressure chamber (10) is communicated with the pressure chamber (12), and one end of the telescopic rod (11) is fixedly connected to A connecting block (13) is provided inside the connecting block (13), wherein a pressure chamber three (14) is provided inside the connecting block (13), wherein the pressure chamber three (14) is communicated with the pressure chamber two (12), wherein a hinge ball (15) is fixedly connected to the valve core two (4), wherein the hinge ball (15) is in ball connection with the connecting block (13), wherein a pressure push plate (16) is slidably connected inside the pressure chamber three (14), wherein one end of the pressure push plate (16) is fixedly connected to a thrust rod (17), wherein the thrust rod (17) is in contact with the hinge ball (15) The hinge ball (15) is fixedly connected with a circular protrusion (18), a pressure spring (36) is provided between the surface of the pressure push plate (16) and the inner wall of the pressure chamber three (14), one end of the telescopic rod one (9) is slidably connected with a connecting valve (19), a connecting chamber (20) is provided inside the connecting valve (19), and the connecting chamber (20) is communicated with the inside of the mounting seat (1) and the pressure chamber one (10) respectively, and the connecting valve (19) is connected with the pressure chamber one (10) A return spring (21) is provided between the walls, the connecting valve (19) contacts the valve core (3), the inner wall diameter of the pressure chamber (10) is A, the inner wall diameter of the pressure chamber (2) (12) is B, the inner wall diameter of the pressure chamber (3) (14) is C, C>A>B, and a sliding component is provided on the valve core (4), and the sliding component is used to drive the valve core (4) to continue to move toward the closing sealing ring (8) when the port of the connecting chamber (20) is completely blocked by the telescopic rod (9).

3. The hydraulic valve structure for automobile according to claim 2, characterized in that: The connecting valve (19) is rotatably connected to a rotating block (22), and the rotating block (22) is fixedly connected to an arc block (23). A sliding groove (24) is provided on the surface of the valve core (3), and both ends of the arc block (23) are chamfered, and the arc block (23) contacts the inner wall of the sliding groove (24). When the valve core (3) is tilted, the arc block (23) is always located on the tilted side of the valve core (3).

4. A hydraulic valve structure for automobiles according to claim 3, characterized in that: One end of the telescopic rod (9) is slidably connected to a sealing ring (25), and a small sealing ring (26) is fixedly connected to the sealing ring (25). A connecting groove (27) is provided on the surface of the connecting valve (19), and the small sealing ring (26) contacts the inner wall of the connecting groove (27). The sealing ring (25) completely blocks the port of the connecting chamber (20) located on the side of the connecting valve (19). The telescopic rod (11) is fixedly connected to a small sealing ring (28), and the small sealing ring (26) contacts the inner wall of the pressure chamber (10).

5. The hydraulic valve structure for automobile according to claim 4, characterized in that: A connecting hole (29) is provided on the telescopic rod (9), and an end face of one side of the connecting hole (29) contacts the surface of the connecting valve (19). The distance between the connecting hole (29) and the end face of the telescopic rod (9) on the side close to the valve core (3) is X. The distance between the connecting chamber (20) and the end face of the telescopic rod (9) on the side close to the valve core (3) is Y. When the connecting valve (19) moves to the maximum distance in the direction of the telescopic rod (11), X=Y.

6. The hydraulic valve structure for automobile according to claim 2, characterized in that: The sliding assembly includes a limit block (32), the valve core (4) includes a rotating valve core (30) and a sliding valve core (31), the rotating valve core (30) is fixedly connected to the hinge ball (15), the sliding valve core (31) is slidably connected to the rotating valve core (30), the number of the limit blocks (32) is 2, the two limit blocks (32) are slidably connected to both sides of the sliding valve core (31), one end of the limit block (32) contacts the end face of the rotating valve core (30), the other end of the limit block (32) extends to the outside of the sliding valve core (31), and limit grooves (33) are provided on both sides of the inner wall of the mounting seat (1), the limit block (32) contacts the inner wall of the limit groove (33), a reset spring (34) is provided between the limit block (32) and the sliding valve core (31), and one end of the closing spring (6) is connected to the sliding valve core (31).

7. The hydraulic valve structure for automobile according to claim 6, characterized in that: Four aligning blocks (37) are evenly distributed on the inner circumference of the mounting seat (1), and the four aligning blocks (37) are all fixedly connected to the inner wall of the mounting seat (1), and the four aligning blocks (37) are all in contact with the sliding valve core (31).

8. The hydraulic valve structure for automobile according to claim 2, characterized in that: Circular arc grooves (35) are provided on both sides of the inner wall of the mounting seat (1), the axes of the circular arc grooves (35) on both sides are collinear with the axis of the valve core (3), and the surface of the valve core (3) is in contact with the inner wall of the circular arc groove (35).

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