Automobile steering gear blind hole fixing lug

Abstract

The application discloses a kind of automobile steering gear blind hole fixed lugs, it is related to automobile steering gear technical field, including steering gear housing, the side of steering gear housing is equipped with round hole, the inside of round hole is slidably connected with lug inner ring, by the resilience of rubber body and the elastic check ring of hole, so that steering gear housing is installed in shell structure when lug can compressible rubber body and the elastic check ring of hole, so that the part of lug is inserted into the round hole on steering gear housing, reduce the size of steering gear housing and lug whole, it is convenient to smoothly install steering gear housing and lug in shell structure, and when steering gear housing and lug are installed in shell structure, due to the restoring force of rubber body and the elastic check ring of hole can make lug further reset and be engaged in the inner clamping groove of shell structure inner wall, ensure that lug is fixed reliably in axial direction, not easy to come out, security is very good.

Description

Technical Field

[0001] This invention relates to the field of automotive steering technology, and in particular to a blind hole fixing lug for automotive steering systems. Background Technology

[0002] This invention is mainly applied in the field of automotive steering technology. It is a connection part for fixing the steering gear to the automotive frame, and the steering gear is fixed to the automotive frame by means of lugs and bolts.

[0003] In existing steering gear hangers, hangers are either press-fitted onto both ends of a round hole in the steering gear housing, or a relatively long hanger is directly pressed into the round hole. For example, the common steering gear hangers used in automobiles in the current technology are installed by drilling a round hole in the steering gear housing, pressing the hanger into both ends, and finally fixing the steering gear to the car frame with bolts.

[0004] Some existing technologies press-fit the lifting lugs onto the round hole. However, the lifting lugs are metal structures, and there is no space for expansion or retraction when the lifting lugs are fixed in the round hole. This makes it difficult to press the steering gear and the lifting lugs into the matching housing structure if the lifting lugs extend too far out of the round hole, due to the limitations of the overall structural dimensions of the steering gear and the lifting lugs.

[0005] Therefore, it is necessary to invent a blind hole fixing lug for automobile steering gear to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a blind hole fixing lug for automotive steering gear, which solves the problem that the lug is a metal structure, and the lug is fixed in a round hole without any space for expansion and contraction. If the lug extends too far out of the round hole, it is difficult to press the steering gear and the lug into a matching housing structure due to the limitation of the overall structural size of the steering gear and the lug.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a blind hole fixing lug for an automobile steering gear, comprising a steering gear housing, wherein a circular hole is provided on one side of the steering gear housing, and an inner ring of the lug is slidably connected inside the circular hole;

[0008] The inner ring of the hanger is fixedly connected to the outer ring of the hanger on the side near the steering gear housing. The outer ring of the hanger is fixedly connected to the side away from the inner ring of the hanger. The rubber body is disposed inside the steering gear housing and fits against the inside of the steering gear housing. Two elastic retaining rings are fixedly connected inside the circular hole. The two elastic retaining rings fit against the two sides of the inner ring of the hanger.

[0009] Preferably, the rubber body has an oil cavity inside, which stores lubricating oil. An oil hole is also provided at the outer ring of the rubber body, which communicates with the interior of the oil cavity. A cotton sleeve is fixedly provided at the outer ring of the rubber body. Rubber retaining rings are fixedly provided at both ends of the rubber body, near or far from the outer ring of the rubber body. The rubber retaining rings protrude from the outer ring of the rubber body, and the two rubber retaining rings are respectively provided at both ends of the cotton sleeve.

[0010] Preferably, two fixing seats are fixedly connected to the side of the steering gear housing near the inner ring of the hanger. A clamping assembly is provided inside the fixing seat. The clamping assembly includes a second moving block. A first moving block is fixedly connected to the end of the second moving block near the inner ring of the hanger. An arc-shaped clamping plate is fixedly connected to the end of the first moving block away from the second moving block. A fixing block is fixedly connected to the top of the arc-shaped clamping plate. An arc-shaped locking block is fixedly connected to the end of the fixing block near the inner ring of the hanger.

[0011] Preferably, a first hemispherical block is fixedly connected to the end of the second movable block away from the first movable block, and a first groove is provided on one side of the fixed seat located on the second movable block. The second movable block is slidably connected inside the first groove, and a first spring is fixedly connected to the end of the first hemispherical block away from the second movable block. The first spring is fixedly connected inside the first groove.

[0012] Preferably, the fixed base is provided with a movable component, the movable component including a second hemisphere block, the second hemisphere block being in contact with the first hemisphere block, the second hemisphere block being slidably connected inside the fixed base, a movable plate being fixedly connected to the side of the second hemisphere block away from the first hemisphere block, and a second spring being fixedly connected to the side of the movable plate away from the second hemisphere block, the second spring being fixedly connected inside the fixed base.

[0013] Preferably, a movable rod is fixedly connected to the top of the movable plate, a movable protrusion is fixedly connected to the top of the movable rod, a concave seat is fixedly connected to one side of the fixed seat, and two sliding grooves are formed on the side of the concave seat near the movable protrusion.

[0014] Preferably, a limiting component is provided on the side of the concave seat near the movable protrusion. The limiting component includes a limiting seat, which is fixedly connected to the concave seat. A moving groove is formed inside the limiting seat, and a sliding plate is slidably connected inside the moving groove. A third spring is fixedly connected to one side of the sliding plate and is fixedly connected inside the moving groove.

[0015] Preferably, a connecting rod is fixedly connected to the side of the sliding plate away from the third spring, and a limit triangular block is fixedly connected to the side of the connecting rod away from the sliding plate.

[0016] Preferably, the limiting triangular block is slidably connected inside the groove, and the outer surface of the limiting triangular block is in contact with the outer surface of the moving protrusion.

[0017] Preferably, the inner ring of the arc-shaped clamp plate is in contact with the outer ring of the inner ring of the lifting lug, the lower surface of the arc-shaped clip is in contact with the upper surface of the inner ring of the lifting lug, a second groove is provided on both sides of the first groove, and two guide grooves are provided inside the second groove, and the moving plate is slidably connected to the inside of the second groove and the guide groove.

[0018] The technical effects and advantages of this invention are as follows:

[0019] 1. This invention fills the gap in press-fitting and fixing lugs at blind holes in steering gear housings, overcoming the shortcomings of limited space and structural constraints when press-fitting lugs into steering gears. This invention utilizes the rebound force generated by a rubber body under a certain pressure. Through the rebound force of the rubber body and the elastic retaining ring in the hole, the lug can compress the rubber body and the elastic retaining ring when the steering gear housing is installed in the housing structure. This allows a portion of the lug to extend into the circular hole on the steering gear housing, reducing the overall size of the steering gear housing and lug, facilitating the smooth installation of the steering gear housing and lug into the housing structure. Furthermore, when the steering gear housing and lug are installed in the housing structure, the restoring force of the rubber body and the elastic retaining ring allows the lug to further reset and engage in the inner groove on the inner wall of the housing structure, ensuring reliable axial fixation of the lug, preventing it from easily coming loose, and providing excellent safety.

[0020] 2. During the compression process of the rubber body, the lubricating oil stored inside the oil cavity can penetrate into the cotton sleeve through the oil hole. When the rubber body recovers its deformation, it absorbs the excess lubricating oil on the outer ring of the rubber body, so that the cotton sleeve is wetted with a certain amount of lubricating oil, thereby lubricating the locking connection and avoiding excessive friction.

[0021] 3. The present invention is equipped with a clamping component. Through the design of the clamping component, the arc-shaped clamping plate and the arc-shaped locking block cooperate with each other. Under the action of the moving component, the arc-shaped clamping plate moves horizontally towards the lifting lug. When the arc-shaped clamping plate and the lifting lug are in contact, the arc-shaped clamping plate restricts the movement of the lifting lug. At the same time, the arc-shaped locking block is located above the lifting lug, which restricts the lifting lug inside the steering gear housing and prevents the lifting lug from moving out of the steering gear housing.

[0022] 4. The present invention is provided with a moving component. Through the design of the moving component, the second hemisphere block and the moving protrusion cooperate with each other. Under the action of the second spring, the moving plate is subjected to force and moves horizontally inside the second groove. The second hemisphere block moves horizontally following the direction of the moving plate. The second hemisphere block and the first hemisphere block are in close contact with each other. When the external force of the second hemisphere block is greater than the elastic force of the first spring, the second hemisphere block pushes the first hemisphere block to move, which helps the clamping component to clamp the lifting lug.

[0023] 5. This invention includes a limiting component. Through the design of the limiting component, the limiting triangular block and the sliding plate cooperate with each other. Under the elastic force of the third spring, when the moving protrusion is moved by force, the moving rod moves horizontally following the direction of the moving protrusion. The moving protrusion and the limiting triangular block are in contact with each other. As the moving protrusion continues to move, the limiting triangular block slides inside the moving groove under force. When the moving protrusion moves into the interior of the concave seat and is in contact with the inner wall of the concave seat, the limiting triangular block is reset by the elastic force of the third spring, restricting the movement of the moving protrusion. This helps to release the clamping component and facilitates the removal of the lifting lug from the interior of the steering gear housing. Attached Figure Description

[0024] Figure 1 This is a first-view structural schematic diagram of the automotive steering system of the present invention.

[0025] Figure 2 This is a schematic diagram of the second-view structure of the automotive steering system of the present invention.

[0026] Figure 3 This is a schematic diagram of the third-view structure of the automotive steering system of the present invention.

[0027] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle.

[0028] Figure 5 This is a schematic diagram of the lifting lug structure of the present invention.

[0029] Figure 6 This is a schematic diagram of the internal structure of the automotive steering system of the present invention.

[0030] Figure 7 For the present invention Figure 2 Enlarged structural diagram at point B.

[0031] Figure 8 This is a cross-sectional view of the lifting lug of the present invention.

[0032] Figure 9 For the present invention Figure 8 Enlarged schematic diagram of the structure at point C.

[0033] Figure 10This is a schematic diagram of the structure of the automotive steering system of the present invention installed between housing structures.

[0034] Figure 11 This is a schematic diagram of the process of assembling the automotive steering gear of the present invention onto the housing structure.

[0035] Figure 12 This is a schematic diagram of the structure of the automotive steering system of the present invention after it is assembled on the housing structure.

[0036] In the diagram: 1. Inner ring of the lifting lug; 2. Outer ring of the lifting lug; 3. Rubber body; 4. Elastic retaining ring for the hole; 5. Steering gear housing; 6. Fixed seat; 7. Arc-shaped clamping plate; 8. Fixed block; 9. Arc-shaped locking block; 10. First moving block; 11. Second moving block; 12. First hemispherical block; 13. First spring; 14. First groove; 15. Second groove; 16. Guide groove; 17. Moving plate; 18. Second spring; 19. Second hemispherical block; 20. Moving rod; 21. Moving protrusion; 22. Concave seat; 23. Limiting triangular block; 24. Limiting seat; 25. Sliding plate; 26. Connecting rod; 27. Moving groove; 28. Third spring; 31. Rubber retaining ring; 32. Cotton sleeve; 33. Oil hole; 34. Oil cavity; 41. Housing structure; 42. Inner locking groove. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] This invention provides, for example Figures 1-12The diagram illustrates a blind hole fixing lug for an automotive steering gear, comprising a steering gear housing 5. A circular hole is formed on one side of the steering gear housing 5, and a lug inner ring 1 is slidably connected inside the hole. The lug is composed of the inner ring 1, an outer ring 2, and a rubber body 3, all formed by vulcanization. First, a retaining ring 4 is placed on the lug. Then, using a press and specialized tooling, the lug and the retaining ring 4 are pressed together into the blind hole on the steering gear housing 5. When the press applies a specified pressure to the lug, the rubber body 3 at the bottom of the lug contacts the bottom of the housing hole, generating a compressive rebound force. Since the press applies pressure according to a specified displacement, when the set displacement is reached, the retaining ring 4 expands and engages in the groove of the blind hole. In this way, the axial fixation of the hanger can be ensured by the rebound force of the rubber body 3 and the elastic retaining ring 4 in the hole. The radial fixation of the hanger is mainly ensured by the interference fit between the outer ring 2 of the hanger and the blind hole of the housing. In this way, the hanger is reliably fixed in the blind hole of the steering gear housing 5, and after being connected to the frame, it can play a role in shock absorption for the steering gear. The structure and application of this hanger device fill the gap in press-fitting hangers in the blind hole of the automotive steering gear housing 5. Moreover, the use of the rebound force of the rubber body 3 to ensure the axial fixation of the hanger is also a very novel creation. This invention is beneficial to reducing the size of the steering gear, and is suitable for occasions with limited installation space and limited steering gear structure. It is safe and reliable.

[0039] The hanger lug is connected to the inner ring 1 and the outer ring 2 of the hanger lug by a vulcanized rubber body 3. The outer ring 2 of the hanger lug is used to fix the hanger lug by an interference fit with the hole 5 of the steering gear housing. The inner ring 1 of the hanger lug is used to fix the steering gear to the frame by connecting bolts. The main function of the rubber body 3 is to connect the inner ring 1 and the outer ring 2 of the hanger lug and to reduce the impact and vibration of the steering gear caused by road bumps during the driving process. The function of the elastic retaining ring 4 of the hole is to complete the axial fixation of the hanger lug and prevent the hanger lug from loosening and falling out.

[0040] The inner ring 1 of the hanger is fixedly connected to the outer ring 2 of the hanger on the side close to the steering gear housing 5. The outer ring 2 of the hanger is fixedly connected to the side away from the inner ring 1 of the hanger. The rubber body 3 is located inside the steering gear housing 5 and fits against the inside of the steering gear housing 5. Two elastic retaining rings 4 are fixedly connected inside the round hole. The two elastic retaining rings 4 fit against the two sides of the inner ring 1 of the hanger.

[0041] This invention fills the gap in press-fitting and fixing lugs at the blind hole of the steering gear housing 5, and changes the defects of limited space and structural constraints when press-fitting lugs into the steering gear. This invention utilizes the rebound force generated by the rubber body 3 under a certain range of pressure. Through the rebound force of the rubber body 3 and the elastic retaining ring 4 for the hole, the lug (including the inner ring 1 and the outer ring 2 of the lug) can compress the rubber body 3 and the elastic retaining ring 4 when the steering gear housing 5 is installed in the housing structure 41. This allows a part of the lug to extend into the round hole on the steering gear housing 5, reducing the overall size of the steering gear housing 5 and the lug, making it easier to install the steering gear housing 5 and the lug into the housing structure 41. Furthermore, when the steering gear housing 5 and the lug are installed in the housing structure 41, the restoring force of the rubber body 3 and the elastic retaining ring 4 for the hole allows the lug to be further reset and locked in the inner groove 42 on the inner wall of the housing structure 41, ensuring that the lug is reliably fixed in the axial direction, not easy to fall out, and has good safety.

[0042] Furthermore, the rubber body 3 has an oil cavity 34 inside, which stores lubricating oil. An oil hole 33 is also provided on the outer ring of the rubber body 3, communicating with the interior of the oil cavity 34. A cotton sleeve 32 is fixedly installed on the outer ring of the rubber body 3. Rubber retaining rings 31 are fixedly installed at both ends of the rubber body 3, near or far from point 2. The rubber retaining rings 31 protrude from the outer ring of the rubber body 3, and the two rubber retaining rings 31 are respectively located at both ends of the cotton sleeve 32. During operation, when the car steering gear is assembled with the housing structure 41, the inner ring 1 of the lifting lug is first... The rubber body 3 at the end engages in the round holes at both ends of the steering gear housing 5. During installation, the rubber body 3 is compressed, causing the end of the inner ring 1 of the hanger close to the rubber body 3 to move a certain distance toward the round hole, thus shortening the overall length of the steering gear housing 5 and the two inner rings 1 of the hanger, so that they can be smoothly engaged in the U-shaped housing structure 41. When the inner ring 1 of the hanger 1 corresponds to the inner groove 42, the inner ring 1 of the hanger 1 recovers its deformation through the elastic reset action of the rubber body 3 and the elastic retaining ring 4 of the hole. At this time, the inner ring 1 of the hanger 1 engages in the inner groove 42, and the assembly is completed.

[0043] It should be noted that during the compression of the rubber body 3, the lubricating oil stored inside the oil cavity 34 can penetrate into the cotton sleeve 32 through the oil hole 33. When the rubber body 3 recovers its deformation, it absorbs the excess lubricating oil on the outer ring of the rubber body 3, thereby making the cotton sleeve 32 wet with a certain amount of lubricating oil, thus lubricating the locking connection and avoiding excessive friction. During the compression of the rubber body 3, the two rubber retaining rings 31 block the two ends of the cotton sleeve 32, preventing the lubricating oil on the cotton sleeve 32 from flowing out from the ends, thus saving lubricating oil.

[0044] Two fixing seats 6 are fixedly connected to the side of the steering gear housing 5 near the inner ring 1 of the hanger. A clamping assembly is provided inside the fixing seat 6. The clamping assembly includes a second moving block 11. A first moving block 10 is fixedly connected to the end of the second moving block 11 near the inner ring 1 of the hanger. An arc-shaped clamping plate 7 is fixedly connected to the end of the first moving block 10 away from the second moving block 11. The inner ring of the arc-shaped clamping plate 7 fits against the outer ring of the inner ring 1 of the hanger. A fixing block 8 is fixedly connected to the top of the arc-shaped clamping plate 7. An arc-shaped locking block 9 is fixedly connected to the end of the fixing block 8 near the inner ring 1 of the hanger. The lower surface is in contact with the upper surface of the inner ring 1 of the lug. The end of the second moving block 11 away from the first moving block 10 is fixedly connected to the first hemispherical block 12. The fixed seat 6 is located on one side of the second moving block 11 and has a first groove 14. The first groove 14 has a second groove 15 on both sides. The second groove 15 has two guide grooves 16 inside. The second moving block 11 is slidably connected to the inside of the first groove 14. The end of the first hemispherical block 12 away from the second moving block 11 is fixedly connected to the first spring 13. The first spring 13 is fixedly connected to the inside of the first groove 14.

[0045] The present invention is provided with a clamping component. Through the design of the clamping component, the arc-shaped clamping plate 7 and the arc-shaped locking block 9 cooperate with each other. Under the action of the moving component, the arc-shaped clamping plate 7 moves horizontally towards the lifting lug. When the arc-shaped clamping plate 7 and the lifting lug are in contact, the arc-shaped clamping plate 7 restricts the movement of the lifting lug. At the same time, the arc-shaped locking block 9 is located above the lifting lug, which restricts the lifting lug inside the steering gear housing 5 and prevents the lifting lug from moving out of the steering gear housing 5.

[0046] It should be noted that the moving component can move the arc-shaped clamping plate 7 and the arc-shaped locking block 9 through the moving plate 17. Specifically, the moving plate 17 moves horizontally inside the second groove 15 under force, and the second hemisphere block 19 moves horizontally following the direction of the moving plate 17. The second hemisphere block 19 and the first hemisphere block 12 are in contact with each other. When the external force of the second hemisphere block 19 is greater than the elastic force of the first spring 13, the second hemisphere block 19 pushes the first hemisphere block 12 to move. After the first hemisphere block 12 moves, the second moving block 11 moves with the first hemisphere block 12, and the first moving block 10 moves with the direction of the second moving block 11. The arc-shaped clamping plate 7 and the arc-shaped locking block 9 move with the direction of the first moving block 10, which helps the arc-shaped clamping plate 7 and the arc-shaped locking block 9 to restrict the movement of the lifting lug on the arc-shaped clamping plate 7.

[0047] The fixed base 6 is equipped with a movable component, which includes a second hemisphere 19 that fits into the first hemisphere 12. The second hemisphere 19 is slidably connected inside the fixed base 6. A movable plate 17 is fixedly connected to the side of the second hemisphere 19 away from the first hemisphere 12. The movable plate 17 is slidably connected inside the second groove 15 and the guide groove 16. A second spring 18 is fixedly connected to the side of the movable plate 17 away from the second hemisphere 19. The second spring 18 is fixedly connected inside the fixed base 6. A movable rod 20 is fixedly connected to the top of the movable plate 17. A movable protrusion 21 is fixedly connected to the top of the movable rod 20.

[0048] It should be noted that the first spring 13 and the second spring 18 are respectively set on both sides of the lifting lug, but the first spring 13 and the second spring 18 are in a spatially perpendicular state.

[0049] The present invention includes a movable component. Through the design of the movable component, the second hemisphere 19 and the movable protrusion 21 cooperate with each other. Under the action of the second spring 18, the movable plate 17 is subjected to force and moves horizontally inside the second groove 15. The second hemisphere 19 moves horizontally following the direction of the movable plate 17. The second hemisphere 19 and the first hemisphere 12 are in close contact with each other. When the external force of the second hemisphere 19 is greater than the elastic force of the first spring 13, the second hemisphere 19 pushes the first hemisphere 12 to move, which helps the clamping component to clamp the lifting lug.

[0050] Furthermore, the movable component facilitates the use of the clamping component. Specifically, without external force, the movable plate 17 moves towards the first hemispherical block 12 under the elastic force of the second spring 18. The second hemispherical block 19 moves horizontally following the direction of the movable plate 17, and the second hemispherical block 19 and the first hemispherical block 12 are in contact with each other. The external force on the second hemispherical block 19 is greater than the elastic force of the first spring 13, and the second hemispherical block 19 pushes the first hemispherical block 12 to move. The first hemispherical block 12 moves away from the second hemispherical block 19. The second movable block 11 moves horizontally following the direction of the first hemispherical block 12. The first movable block 10 moves horizontally following the direction of the second movable block 11. The arc-shaped clamping plate 7 moves horizontally following the direction of the second movable block 11. The fixing block 8 moves horizontally following the direction of the second movable block 11. The arc-shaped clamping plate 7 moves horizontally following the direction of the second movable block 11. Block 9 moves horizontally following the direction of the second moving block 11. When an external force is applied, the moving protrusion 21 moves horizontally away from the first hemispherical block 12. The moving rod 20 moves horizontally following the direction of the moving protrusion 21. The second spring 18 is compressed. The moving plate 17 moves horizontally following the direction of the moving rod 20. The second hemispherical block 19 moves horizontally following the direction of the moving rod 20. The first hemispherical block 12 resets under the elastic force of the first spring 13. The second moving block 11 moves horizontally following the direction of the first hemispherical block 12. The first moving block 10 moves horizontally following the direction of the second moving block 11. The arc-shaped clamp 7 moves horizontally following the direction of the second moving block 11. The fixing block 8 moves horizontally following the direction of the second moving block 11. The arc-shaped locking block 9 moves horizontally following the direction of the second moving block 11.

[0051] A concave seat 22 is fixedly connected to one side of the fixed seat 6. Two sliding grooves are opened on the side of the concave seat 22 near the moving protrusion 21. A limiting component is provided on the side of the concave seat 22 near the moving protrusion 21. The limiting component includes a limiting seat 24, which is fixedly connected to the concave seat 22. A moving groove 27 is opened inside the limiting seat 24. A sliding plate 25 is slidably connected inside the moving groove 27. A third spring 28 is fixedly connected to one side of the sliding plate 25. The third spring 28 is fixedly connected inside the moving groove 27. A connecting rod 26 is fixedly connected to the side of the sliding plate 25 away from the third spring 28. A limiting triangular block 23 is fixedly connected to the side of the connecting rod 26 away from the sliding plate 25. The limiting triangular block 23 is slidably connected inside the sliding groove. The outer surface of the limiting triangular block 23 is in contact with the outer surface of the moving protrusion 21.

[0052] The present invention includes a limiting component. Through the design of the limiting component, the limiting triangular block 23 and the sliding plate 25 cooperate with each other. Under the elastic force of the third spring 28, when the moving protrusion 21 is moved by force, the moving rod 20 moves horizontally following the direction of the moving protrusion 21. The moving protrusion 21 and the limiting triangular block 23 are in contact with each other. As the moving protrusion 21 continues to move, the limiting triangular block 23 slides inside the moving groove 27 under force. When the moving protrusion 21 moves into the interior of the concave seat 22 and is in contact with the inner wall of the concave seat 22, the limiting triangular block 23 is reset by the elastic force of the third spring 28, restricting the movement of the moving protrusion 21. This helps to release the clamping component and facilitates the removal of the lifting lug from the interior of the steering gear housing 5.

[0053] Furthermore, the limiting component helps restrict the movement of the moving component. Specifically, when an external force is applied to the moving component, the moving protrusion 21 is forced to move horizontally away from the first hemispherical block 12. The moving rod 20 moves horizontally in the same direction as the moving protrusion 21. The second spring 18 is compressed, the moving plate 17 moves horizontally in the same direction as the moving rod 20, and the second hemispherical block 19 moves horizontally in the same direction as the moving rod 20. After the moving protrusion 21 moves under force, the moving rod 20 moves horizontally in the same direction as the moving protrusion 21. The moving protrusion 21 and the limiting triangle block 23 are in contact with each other. The moving protrusion 21 continues to move, pushing the limiting triangle block 23 to move. The limiting triangle block 23 slides inside the moving groove 27 under force. When the moving protrusion 21 moves into the concave seat 22 and is in contact with the inner wall of the concave seat 22, the limiting triangle block 23 is reset by the elastic force of the third spring 28. The limiting triangle block 23 restricts the movement of the moving protrusion 21.

[0054] It should also be noted that the structure of the fixed seat 6 is only to further increase the connection stability between the car steering gear and the housing structure 41. The fixed seat 6 and the like are small in size, smaller than the length of the inner ring of the hanger 1 extending out of the round hole, and do not affect the assembly between the car steering gear and the housing structure 41 when the inner ring of the hanger 1 extends or retracts.

Claims

1. A blind hole fixing lug for an automotive steering gear, comprising a steering gear housing (5), characterized in that: A circular hole is provided on one side of the steering gear housing (5), and a lug inner ring (1) is slidably connected inside the circular hole. The inner ring (1) of the hanger is fixedly connected to the outer ring (2) of the hanger on the side close to the steering gear housing (5). The outer ring (2) of the hanger is fixedly connected to the side away from the inner ring (1) of the hanger. The rubber body (3) is disposed inside the steering gear housing (5) and fits against the inside of the steering gear housing (5). Two hole elastic retaining rings (4) are fixedly connected inside the round hole. The two hole elastic retaining rings (4) fit against the two sides of the inner ring (1) of the hanger respectively. Two fixed seats (6) are fixedly connected to the side of the steering gear housing (5) near the inner ring (1) of the lug. The fixed seats (6) are provided with a clamping assembly. The clamping assembly includes a second moving block (11). A first moving block (10) is fixedly connected to one end of the second moving block (11) near the inner ring (1). An arc-shaped clamping plate (7) is fixedly connected to one end of the first moving block (10) away from the second moving block (11). A fixed block (8) is fixedly connected to the top of the arc-shaped clamping plate (7). An arc-shaped locking block (9) is fixedly connected to one end of the fixed block (8) near the inner ring (1) of the lug.

2. The blind hole fixing lug for an automotive steering gear according to claim 1, characterized in that: The rubber body (3) has an oil cavity (34) inside, which stores lubricating oil. The outer ring of the rubber body (3) also has an oil hole (33) that communicates with the interior of the oil cavity (34). A cotton sleeve (32) is fixedly installed on the outer ring of the rubber body (3). Rubber retaining rings (31) are fixedly installed at both ends of the rubber body (3) near or away from the outer ring (2) of the lug. The rubber retaining rings (31) protrude from the outer ring of the rubber body (3), and the two rubber retaining rings (31) are respectively installed at both ends of the cotton sleeve (32).

3. The blind hole fixing lug for an automotive steering gear according to claim 1, characterized in that: The second moving block (11) is fixedly connected to a first hemispherical block (12) at one end away from the first moving block (10). The fixed seat (6) is provided with a first groove (14) on one side of the second moving block (11). The second moving block (11) is slidably connected inside the first groove (14). The first hemispherical block (12) is fixedly connected to a first spring (13) at one end away from the second moving block (11). The first spring (13) is fixedly connected inside the first groove (14).

4. The blind hole fixing lug for an automotive steering gear according to claim 3, characterized in that: The fixed base (6) is provided with a moving component, which includes a second hemisphere (19) that fits against the first hemisphere (12). The second hemisphere (19) is slidably connected inside the fixed base (6). A moving plate (17) is fixedly connected to the side of the second hemisphere (19) away from the first hemisphere (12). A second spring (18) is fixedly connected to the side of the moving plate (17) away from the second hemisphere (19). The second spring (18) is fixedly connected inside the fixed base (6).

5. The blind hole fixing lug for an automotive steering gear according to claim 4, characterized in that: The top of the movable plate (17) is fixedly connected to a movable rod (20), the top of the movable rod (20) is fixedly connected to a movable protrusion (21), and a concave seat (22) is fixedly connected to one side of the fixed seat (6). Two grooves are opened on the side of the concave seat (22) near the movable protrusion (21).

6. The blind hole fixing lug for an automotive steering gear according to claim 5, characterized in that: A limiting component is provided on the side of the concave seat (22) near the movable protrusion (21). The limiting component includes a limiting seat (24), which is fixedly connected to the concave seat (22). A moving groove (27) is opened inside the limiting seat (24). A sliding plate (25) is slidably connected inside the moving groove (27). A third spring (28) is fixedly connected to one side of the sliding plate (25). The third spring (28) is fixedly connected inside the moving groove (27).

7. A blind hole fixing lug for an automotive steering gear according to claim 6, characterized in that: A connecting rod (26) is fixedly connected to the side of the sliding plate (25) away from the third spring (28), and a limit triangular block (23) is fixedly connected to the side of the connecting rod (26) away from the sliding plate (25).

8. The blind hole fixing lug for an automotive steering gear according to claim 7, characterized in that: The limiting triangular block (23) is slidably connected inside the slide groove, and the outer surface of the limiting triangular block (23) is in contact with the outer surface of the moving protrusion (21).

9. A blind hole fixing lug for an automotive steering gear according to claim 4, characterized in that: The inner ring of the arc-shaped clamp (7) is in contact with the outer ring of the inner ring (1) of the lifting lug, the lower surface of the arc-shaped clip (9) is in contact with the upper surface of the inner ring (1) of the lifting lug, the first groove (14) has a second groove (15) on both sides, the second groove (15) has two guide grooves (16) inside, and the moving plate (17) is slidably connected to the second groove (15) and the guide groove (16) inside.

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