Rubber damping bushing

Abstract

The utility model relates to the technical field of shock-absorbing bushings, and discloses a rubber shock-absorbing bushing, which comprises a cavity symmetrically arranged on the inner side wall of a metal sleeve circumferentially; one end of the rotating shaft is rotationally connected to the inner wall of the cavity; the screw rod is fixedly connected to the other end of the rotating shaft; the fixing block is in threaded connection with the exterior of the lead screw; the fixing grooves are circumferentially and symmetrically formed in the outer side wall of the rubber bushing; the worm gear is fixedly connected outside the rotating shaft; the worm is rotationally connected into the cavity, the worm is meshed with the worm gear, and the top of the worm penetrates through and extends to the top of the metal sleeve; and the knob is fixedly connected to the top of the worm. A worker rotates the knob, the knob drives the worm to rotate, the worm drives the worm gear meshed with the worm to rotate, the lead screw connected with the worm gear through the rotating shaft rotates, and the fixing block in threaded connection with the exterior of the lead screw extends out of the cavity and is inserted into the fixing groove, so that connection of the metal sleeve and the rubber bushing is achieved. And the phenomenon of displacement during use of the metal sleeve and the rubber bushing is reduced.

Description

Technical Field

[0001] This utility model relates to the field of shock-absorbing bushing technology, specifically a rubber shock-absorbing bushing. Background Technology

[0002] Shock absorber bushings are generally installed at the top and bottom of the shock absorber. The shock absorber can be connected to other parts of the electric vehicle through the shock absorber bushings. When the shock absorber is working, the shock absorber bushings can play a buffering role and help the shock absorber achieve the ideal shock absorption state.

[0003] When existing rubber shock absorber bushings are used, the bushings are generally directly fitted inside the metal shell. However, due to wear and tear from long-term operation, the connection between the bushing and the metal shell may become loose, thus affecting its normal use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a rubber shock-absorbing bushing that facilitates the fixing of the bushing to the outer shell, thus solving the problem that after prolonged use, the connection between the existing rubber shock-absorbing bushing and the metal outer shell is prone to loosening, thereby affecting normal use.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rubber shock-absorbing bushing, comprising a main body assembly, wherein the main body assembly includes:

[0008] A metal sleeve with a rubber bushing on its inner wall;

[0009] The metal sleeve and the rubber bushing are provided with a fixing component, the fixing component including:

[0010] A cavity is symmetrically arranged on the inner wall of the metal sleeve;

[0011] A rotating shaft, one end of which is rotatably connected to the inner wall of the cavity;

[0012] The lead screw is fixedly connected to the other end of the rotating shaft;

[0013] A fixing block is threadedly connected to the outside of the lead screw;

[0014] A fixing groove is symmetrically formed on the outer wall of the rubber bushing;

[0015] The worm gear is fixedly connected to the outside of the rotating shaft;

[0016] A worm gear is rotatably connected within the cavity, the worm gear meshes with the worm wheel, and the top of the worm gear extends through and to the top of the metal sleeve;

[0017] The knob is fixedly connected to the top of the worm gear.

[0018] Preferably, the outer wall of the fixed block is symmetrically and fixedly connected with a slider, and the cavity is symmetrically provided with grooves on both sides, and the slider is slidably connected in the groove.

[0019] Preferably, the fixing block and the fixing groove are of the same size.

[0020] Preferably, the internal cavity mechanism and the fixing block are symmetrically arranged in multiple sets, and at least two sets are arranged.

[0021] Preferably, the outer wall of the rubber bushing is provided with a guide block, and the inside of the metal sleeve is provided with a guide groove, and the guide block is slidably connected in the guide groove.

[0022] Preferably, dust baffles are symmetrically arranged on the top of the rubber bushing, and bolts are symmetrically arranged on the dust baffles.

[0023] (III) Beneficial Effects

[0024] Compared with the prior art, the present invention provides a rubber shock-absorbing bushing with the following advantages:

[0025] This shock-absorbing bushing offers the advantage of easy fixation between the bushing and the outer shell. When the operator rotates the knob, the knob drives the worm gear, which in turn drives the meshing worm wheel. The lead screw, connected to the worm wheel via a shaft, rotates, causing the threaded fixing block on the lead screw to extend out of the cavity and insert into the fixing groove. This achieves the connection between the metal sleeve and the rubber bushing, reducing the possibility of displacement during use. It solves the problem of existing rubber shock-absorbing bushings where the connection between the bushing and the metal shell easily loosens after prolonged use, affecting normal operation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is an exploded structural diagram of the present invention;

[0028] Figure 3 This is a schematic diagram of the right-side cross-sectional structure of the metal sleeve in this utility model;

[0029] Figure 4 This is a top view cross-sectional structural diagram of the metal sleeve in this utility model.

[0030] In the picture:

[0031] 1. Main component; 11. Metal sleeve; 12. Rubber bushing;

[0032] 2. Fixed component; 21. Cavity; 22. Lead screw; 221. Rotating shaft; 23. Fixed block; 231. Slider; 232. Slide groove; 24. Fixed groove; 25. Worm gear; 26. Worm; 27. Knob;

[0033] 3. Dust baffle; 31. Bolt; 4. Guide block; 41. Guide groove. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Example 1

[0036] See Figure 1-4 A rubber shock-absorbing bushing includes a main body assembly 1, which includes: a metal sleeve 11 with a rubber bushing 12 disposed on its inner sidewall; a fixing assembly 2 disposed on the metal sleeve 11 and the rubber bushing 12, the fixing assembly 2 including: a cavity 21 symmetrically disposed on the inner sidewall of the metal sleeve 11; a rotating shaft 221 rotatably connected at one end to the inner wall of the cavity 21; a lead screw 22 fixedly connected to the other end of the rotating shaft 221; a fixing block 23 threadedly connected to the outside of the lead screw 22; a fixing groove 24 symmetrically opened on the outer sidewall of the rubber bushing 12; a worm gear 25 fixedly connected to the outside of the rotating shaft 221; a worm 26 rotatably connected to the cavity 21, the worm 26 meshing with the worm gear 25, and the top of the worm 26 penetrating and extending to the top of the metal sleeve 11; and a knob 27 fixedly connected to the top of the worm 26. The outer wall of the fixing block 23 is symmetrically and fixedly connected to a slider 231. The cavity 21 has symmetrically opened grooves 232 on both sides, and the slider 231 is slidably connected in the grooves 232. The fixing block 23 and the fixing groove 24 are of the same size.

[0037] In use, the rubber bushing 12 is fitted onto the inner wall of the metal sleeve 11. The operator rotates the knob 27, which drives the worm gear 26 to rotate. The worm gear 26 then drives the meshing worm wheel 25 to rotate, causing the lead screw 22, connected to the worm wheel 25 via a rotating shaft 221, to rotate. The fixing block 23, externally threaded to the lead screw 22, extends out of the cavity 21 and inserts into the fixing groove 24, thus connecting the metal sleeve 11 and the rubber bushing 12 and reducing the possibility of displacement during use. When the fixing block 23 moves, it drives the sliders 231 on both sides to slide within the sliding groove 232. The sliders 231 and the sliding groove 232 guide and limit the movement of the fixing block 23, increasing its stability and preventing it from completely detaching from the cavity 21, which would affect the subsequent fixing of the rubber bushing 12. The fact that the fixing block 23 and the fixing groove 24 are the same size ensures that after the fixing block 23 is inserted into the fixing groove 24, the fixing block 23 cannot wobble in the fixing groove 24, thus avoiding affecting the stability of the metal sleeve 11 and the rubber bushing 12 after connection.

[0038] Example 2

[0039] An auxiliary function has been added based on Embodiment 1.

[0040] See Figure 1-4 The internal mechanism of the cavity 21 and the fixing block 23 are symmetrically arranged in multiple sets, with at least two sets. A guide block 4 is provided on the outer wall of the rubber bushing 12, and a guide groove 41 is formed inside the metal sleeve 11, with the guide block 4 slidably connected within the guide groove 41. Dust baffles 3 are symmetrically arranged on the top of the rubber bushing 12, and bolts 31 are symmetrically arranged on the dust baffles 3.

[0041] Multiple sets of fixing blocks 23 and fixing grooves 24, arranged vertically and vertically, simultaneously fix multiple positions of the rubber bushing 12, further enhancing the firmness of the connection between the metal sleeve 11 and the rubber bushing 12. Before the worker places the metal sleeve 11 on the outside of the rubber bushing 12, the guide block 4 is aligned with the guide groove 41 and slid into the guide groove 41. At this point, the position of the rubber bushing 12 ensures that the fixing blocks 23 and fixing grooves 24 correspond one-to-one, facilitating subsequent fixing. After the worker places the metal sleeve 11 and the rubber bushing 12 together on the outside of the electric vehicle shock absorber, two dust baffles 3 are placed on top of the metal sleeve 11, and the bolts 31 are fixed by the dust baffle 3 fixing components 2. The two dust baffles 3 together protect the top of the rubber bushing 12, preventing dust from entering the top of the rubber bushing 12 and causing wear, thereby reducing the service life of the rubber bushing 12.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rubber damping bushing, comprising a main body assembly (1), the main body assembly (1) comprising: a metal sleeve (11) with an inner side wall provided with a rubber bushing (12); characterized in that: the metal sleeve (11) and the rubber bushing (12) are provided with a fixing assembly (2), the fixing assembly (2) comprising: a cavity (21) circumferentially symmetrically provided on the inner side wall of the metal sleeve (11); a rotating shaft (221) rotationally connected to one end of the inner wall of the cavity (21); a lead screw (22) fixedly connected to the other end of the rotating shaft (221); a fixed block (23) threadedly connected to the outside of the lead screw (22); a fixed groove (24) circumferentially symmetrically provided on the outer side wall of the rubber bushing (12); a worm gear (25) fixedly connected to the outside of the rotating shaft (221); a worm (26) rotationally connected in the cavity (21), the worm (26) is engaged with the worm gear (25), and the top of the worm (26) penetrates and extends to the top of the metal sleeve (11); a knob (27) fixedly connected to the top of the worm (26).

2. A rubber bushing according to claim 1, characterized in that: The outer side wall of the fixed block (23) is symmetrically and fixedly connected with a sliding block (231), and the cavity (21) is symmetrically provided with a sliding groove (232) on both sides, and the sliding block (231) is slidingly connected in the sliding groove (232).

3. A rubber bushing according to claim 2, wherein: The size of the fixed block (23) and the fixed groove (24) is equal.

4. A rubber bushing according to claim 3, wherein: The internal mechanism of the cavity (21) and the fixed block (23) are symmetrically provided with multiple groups, and at least two groups.

5. A rubber bushing according to claim 4, wherein: The outer side wall of the rubber bushing (12) is provided with a guide block (4), the inside of the metal sleeve (11) is provided with a guide groove (41), and the guide block (4) is slidingly connected in the guide groove (41).

6. A rubber bushing according to claim 5, wherein: The top of the rubber bushing (12) is symmetrically provided with a dust shield (3), and the dust shield (3) is symmetrically provided with a bolt (31).

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