Rubber bushing in automobile steering engine

Abstract

The utility model discloses a rubber bushing in an automobile steering engine, which relates to the technical field of steering engine bushings and comprises a bushing body and a protective layer, and a rotary magnetic component matched with an elastic clamping piece is arranged on the periphery of a transverse section of the bushing body; through the arrangement of the elastic clamping piece, the inserting column and the inserting groove, when the pressing plate slides to the position attached to the lining body outside the protective layer, the inserting column can be synchronously inserted into the inner side of the inserting groove, the arc-shaped end of the inserting column abuts against the arc-shaped end of the positioning block in advance, then the positioning block is squeezed to contract the inner side of the contraction groove, and the compression spring is compressed to deform; when the inserting column is completely inserted into the inserting groove, the positioning block can be reset and inserted into the positioning hole under the elastic force of the compression spring, the inserting column is locked, and therefore compared with the installation mode that a pressing plate is fixedly connected with the lining body through a screw in the prior art, the fixing and connecting effect of the pressing plate on the transverse section of the lining body can be automatically achieved through the elastic clamping piece.

Description

Technical Field

[0001] This utility model relates to the field of steering gear bushing technology, specifically to a rubber bushing for an automotive steering gear. Background Technology

[0002] Steering gear bushings are rubber products that connect the steering gear and the vehicle load in the automotive steering system. They bear the friction between the steering gear and the vehicle body, and reduce noise, vibration, and acoustic roughness during vehicle movement. They also play a role in eliminating vibration. The steering gear bushing is a key part of the steering gear positioning structure. Wear of the steering gear bushing will lead to poor steering gear positioning in the steering system, which in turn will result in insufficient steering return and reduced steering accuracy when the vehicle is driving. In the existing technology, a rubber sleeve is set on the outside of the steering gear bushing, and then an outer sleeve is put on the outside of the outer sleeve. This will undoubtedly increase the outer diameter of the steering gear and increase the cost.

[0003] According to a car steering bushing with prior art patent publication number CN106484340B, the bushing has an added protective layer that can be replaced at any time without removing the entire bushing. This not only reduces replacement costs but also saves labor. In contrast, when installing the protective layer on the outside of the bushing, the conventional method requires pre-installing a retaining ring on the outside of the protective layer to press the end of the protective layer with the retaining ring. Then, screws are used to fix the retaining ring to the flange on the bushing to finally achieve the effect of fixing the protective layer.

[0004] The installation method of using screws to fix the fixing ring and the retaining edge can basically ensure the firmness between the fixing ring and the retaining edge. However, from the perspective of actual installation, in order to ensure sufficient stability of the fixing ring, the conventional installation of the fixing ring usually requires multiple sets of screws. This means that when manually removing and installing the protective layer, multiple sets of screws need to be tightened or loosened in sequence to finally achieve the connection and separation of the fixing ring. This makes the replacement of the protective layer cumbersome and inefficient. Utility Model Content

[0005] To solve the above-mentioned technical problems, a rubber bushing for an automotive steering gear is provided, which solves the problem that it is inconvenient to replace the protective layer on the bushing in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a rubber bushing for an automotive steering gear, comprising a bushing body and a protective layer sleeved on the outside of the bushing body. Both the bushing body and the protective layer are T-shaped. A receiving groove adapted to the transverse section of the protective layer is formed around the bottom surface of the transverse section of the bushing body. A pressure plate slidably sleeved on the outside of the protective layer and detachably connected to the transverse section of the bushing body is provided. A plurality of inserts are fixed around the top surface of the pressure plate. A slot adapted to the inserts is formed on the bottom surface of the transverse section of the bushing body. A shrinkage groove communicating with the inside of the slot is formed on the outer wall of the bushing body. An elastic clip is built into the shrinkage groove. A rotating magnetic component cooperating with the elastic clip is provided on the outer periphery of the transverse section of the bushing body.

[0007] Preferably, the elastic clip includes a positioning block slidably disposed on one side of the shrinkage groove and a fixing piece vertically fixed on the other side of the shrinkage groove. A compression spring is fixed between the fixing piece and the positioning block. The insertion post has a positioning hole adapted to the positioning block, and both the insertion post and the positioning block are bullet-shaped.

[0008] Preferably, the rotating magnetic component includes two fixed rings symmetrically distributed vertically and securely fitted onto the outer wall of the transverse section of the bushing body, and a rotating ring rotatably disposed between the two fixed rings. A magnetic block is fixedly embedded on the inner wall of the rotating ring, and a ring magnet corresponding to the magnetic block is fixedly embedded at one end of the positioning block facing the fixing piece.

[0009] Preferably, the fixed ring has an arc-shaped groove, and a limiting slider that is fixedly connected to the end face of the rotating ring is slidably disposed in the arc-shaped groove.

[0010] Preferably, the positioning block has a movable slot at one end facing the fixing piece, and a guide post that is slidably fixed perpendicularly to the fixing piece is disposed in the movable slot.

[0011] Preferably, an anti-slip ring is securely fitted onto the outer wall of the rotating ring.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] (1) By setting up elastic clips, inserts and slots, when the sliding pressure plate outside the protective layer is in contact with the bushing body, the insert can be inserted into the inner side of the slot at the same time. The arc end of the insert is pre-aggregated with the arc end of the positioning block, and then the positioning block is squeezed and shrinks the inner side of the shrink groove and compresses the compression spring. When the insert is fully inserted into the slot, the positioning block can be reset and inserted into the positioning hole under the spring force of the compression spring, thereby locking the insert. Compared with the existing technology of using screws to fix the pressure plate to the bushing body, the use of elastic clips can automatically achieve the fixed connection effect of the pressure plate in the transverse section of the bushing body, making it easier to install the pressure plate manually and enhancing its practicality.

[0014] (2) By setting the rotating magnetic component, the magnetic block can be easily rotated to move to the position corresponding to the shrinkage groove. The magnetic block will attract the ring magnet, so that the positioning block will actively shrink the inside of the shrinkage groove, thereby releasing the fixing effect of the positioning block on the insertion post and making it easier to disassemble the pressure plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0017] Figure 3 This utility model Figure 2 Schematic diagram of the structure at point A in the middle;

[0018] Figure 4 This utility model Figure 3 Schematic diagram of the structure at point B.

[0019] The numbers on the map are:

[0020] 1. Bushing body; 2. Protective layer; 3. Pressure plate; 4. Insert post; 5. Slot; 6. Shrink groove; 7. Positioning block; 8. Fixing piece; 9. Guide post; 10. Compression spring; 11. Fixing ring; 12. Rotating ring; 13. Magnetic block; 14. Ring magnet; 15. Limiting slider; 16. Anti-slip ring. Detailed Implementation

[0021] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0022] Reference Figure 1-4As shown, a rubber bushing in an automotive steering gear includes a bushing body 1 and a protective layer 2 sleeved on the outside of the bushing body 1. Both the bushing body 1 and the protective layer 2 are T-shaped, and a receiving groove adapted to the transverse section of the protective layer 2 is provided around the bottom surface of the transverse section of the bushing body 1.

[0023] By setting the protective layer 2, protection can be effectively built on the outside of the bushing body 1, thereby reducing the wear of the outer wall of the bushing body 1 during use and improving the service life of the bushing body 1.

[0024] Furthermore, referring to Figure 1 and Figure 2 As shown, it is worth noting that the protective layer 2 is slidably fitted with a pressure plate 3 that is detachably connected to the transverse section of the bushing body 1;

[0025] With the setting of the pressure plate 3, after the protective layer 2 is fitted on the outer wall of the bushing body 1, the pressure plate 3 is slidably fitted on the outside of the protective layer 2, so that the pressure plate 3 is fixedly connected to the transverse section of the bushing body 1. In this way, the pressure plate 3 can effectively press and fix the transverse section of the protective layer 2, so as to achieve the installation effect of the protective layer 2 on the bushing body 1.

[0026] Furthermore, referring to Figure 2-4 As shown, it is worth noting that several inserts 4 are fixed around the top surface of the pressure plate 3, and slots 5 that are adapted to the inserts 4 are opened on the bottom surface of the transverse section of the bushing body 1. A shrinkage groove 6 that communicates with the inside of the slot 5 is opened on the outer wall of the bushing body 1, and an elastic clip is built into the shrinkage groove 6.

[0027] The elastic clip includes a positioning block 7 that is slidably disposed on one side inside the shrinkage groove 6 and a fixing piece 8 that is vertically fixed on the other side inside the shrinkage groove 6. A compression spring 10 is fixed between the fixing piece 8 and the positioning block 7. The insertion post 4 is provided with a positioning hole that matches the positioning block 7, and both the insertion post 4 and the positioning block 7 are bullet-shaped.

[0028] With the setting of elastic clips, inserts 4, and slots 5, when the sliding pressure plate 3 outside the protective layer 2 is in a position to fit against the bushing body 1, the insert 4 can be inserted into the inside of the slot 5 simultaneously. The arc-shaped end of the insert 4 is pre-aggregated with the arc-shaped end of the positioning block 7, and the positioning block 7 is squeezed and contracted inside the contraction groove 6 and the compression spring 10 is compressed and deformed. When the insert 4 is fully inserted into the slot 5, the positioning block 7 can be reset and inserted into the positioning hole under the elastic force of the compression spring 10, thereby locking the insert 4. Compared with the existing technology where the pressure plate 3 is fixedly connected to the bushing body 1 with screws, the use of elastic clips can automatically achieve the fixed connection effect of the pressure plate 3 in the transverse section of the bushing body 1, making the manual installation of the pressure plate 3 easier and enhancing its practicality.

[0029] Furthermore, referring to Figure 3 and Figure 4 As shown, it is worth noting that the positioning block 7 has a movable slot at one end facing the fixing piece 8, and a guide post 9 that is slidably fixed to the fixing piece 8 is slidably disposed in the movable slot.

[0030] With the setting of the movable slot and guide post 9, when the positioning block 7 slides inside the shrinkage groove 6, the positioning block 7 can slide synchronously on the rod of the guide post 9, and thus the guide post 9 can effectively limit the movement trajectory of the positioning block 7.

[0031] Furthermore, referring to Figure 2-4 As shown, it is worth noting that the outer periphery of the transverse section of the bushing body 1 is provided with a rotating magnetic component that cooperates with the elastic clip.

[0032] The rotating magnetic component includes two symmetrically distributed upper and lower fixing rings 11 that are fastened to the outer wall of the transverse section of the bushing body 1 and a rotating ring 12 that is rotatably disposed between the two fixing rings 11. A magnetic block 13 is fixedly embedded on the inner wall of the rotating ring 12. A ring magnet 14 corresponding to the magnetic block 13 is fixedly embedded at one end of the positioning block 7 facing the fixing plate 8.

[0033] By using a rotating magnetic component, the magnetic block 13 can be moved to a position corresponding to the shrinkage groove 6 by simply rotating the rotating ring 12. The magnetic block 13 then attracts the ring magnet 14, causing the positioning block 7 to actively shrink the inside of the shrinkage groove 6, thereby releasing the fixing effect of the positioning block 7 on the insertion post 4 and making it easier to disassemble the pressure plate 3.

[0034] Furthermore, referring to Figure 3-4 As shown, it is worth noting that an arc-shaped groove is provided on the fixed ring 11, and a limiting slider 15 that is fixedly connected to the end face of the rotating ring 12 is slidably arranged in the arc-shaped groove.

[0035] By setting the limiting slider 15 and the arc-shaped slide groove, when the rotating ring 12 is rotated, the limiting slider 15 can move synchronously within the arc-shaped slide groove. In this way, the arc-shaped slide groove and the limiting slider 15 can effectively limit the rotation trajectory of the rotating ring 12.

[0036] Furthermore, referring to Figure 1-4 As shown, it is worth noting that an anti-slip ring 16 is fastened to the outer wall of the rotating ring 12;

[0037] The anti-slip ring 16 increases the friction on the manual hand when the knob is turned 12, preventing slippage during the turning process.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rubber bushing in a steering gear of an automobile, comprising a bushing body (1) and a protective layer (2) sleeved outside the bushing body (1), the bushing body (1) and the protective layer (2) are both in a T shape, and a containing groove adapted to a lateral segment of the protective layer (2) is formed around a bottom surface of a lateral segment of the bushing body (1), characterized in that, The protective layer (2) is externally sleeved with a pressing plate (3) which is detachably connected with the lateral section of the bush body (1), a plurality of insertion columns (4) are fixedly arranged on the top surface of the pressing plate (3), a plurality of insertion grooves (5) which are matched with the insertion columns (4) are arranged on the bottom surface of the lateral section of the bush body (1), a plurality of contraction grooves (6) which are communicated with the insertion grooves (5) are arranged on the outer wall of the bush body (1), and elastic clamping members are arranged in the contraction grooves (6).

2. A rubber bushing for use in a vehicle steering gear as defined in claim 1, wherein The elastic clamping members comprise positioning blocks (7) which are arranged on one side of the contraction grooves (6) and fixed blocks (8) which are vertically arranged on the other side of the contraction grooves (6), compression springs (10) are arranged between the fixed blocks (8) and the positioning blocks (7), and the insertion columns (4) and the positioning blocks (7) are both bullet-shaped.

3. A rubber bushing for use in a vehicle steering gear as defined in claim 2, wherein The rotating magnetic members comprise two fixed rings (11) which are symmetrically arranged on the outer wall of the lateral section of the bush body (1) and are tightly sleeved on the outer wall of the lateral section of the bush body (1), and a rotating ring (12) which is rotatably arranged between the two fixed rings (11), magnetic blocks (13) are fixedly arranged on the inner wall of the rotating ring (12), and annular magnets (14) which are matched with the magnetic blocks (13) are fixedly arranged on one end of the positioning blocks (7) which faces the fixed blocks (8).

4. A rubber bushing for use in a vehicle steering gear as defined in claim 3, wherein Arc-shaped sliding grooves are arranged on the fixed rings (11), and limiting sliding blocks (15) which are fixedly connected with the end surface of the rotating ring (12) are arranged in the arc-shaped sliding grooves.

5. A rubber bushing for use in a vehicle steering gear as defined in claim 2, wherein The one end of the positioning blocks (7) which faces the fixed blocks (8) is provided with movable insertion grooves, and guiding columns (9) which are perpendicularly fixed with the fixed blocks (8) are arranged in the movable insertion grooves.

6. A rubber bushing for use in a vehicle steering gear as defined in claim 3, wherein The outer wall of the rotating ring (12) is tightly sleeved with anti-skid rings (16).

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