Stable automobile shock absorber bushing

Abstract

The utility model provides a stable automobile shock absorber bushing which comprises a bushing inner pipe and a bushing rubber sleeve, the bushing inner pipe and the bushing rubber sleeve are coaxially arranged, one end of the bushing inner pipe is provided with a fixed limiting block, the fixed limiting block and the bushing inner pipe are integrally formed, the other end of the bushing inner pipe is provided with a movable limiting block, and the movable limiting block and the bushing rubber sleeve are integrally formed. The movable limiting block is detachably connected with the lining inner pipe; the inner wall of the lining rubber sleeve is cylindrical, the inner diameter of the lining rubber sleeve is matched with the outer diameter of the lining inner pipe, and two sets of protrusions are arranged on the outer wall of the lining rubber sleeve to form an M-shaped structure. The stable automobile shock absorber bushing has the advantages of being simple in structure and reasonable in design, the limiting block can be prevented from being damaged in the assembling process, and the bushing and the hanging ring can be assembled conveniently.

Description

Technical Field

[0001] The utility model relates to a shock-absorbing component, specifically to a stable automobile shock absorber bushing. Background Art

[0002] In order to reduce vibration and noise and improve the riding comfort of automobiles, shock absorber bushings are usually installed on automobile shock absorbers. There are many types of automobile shock absorber bushings on the market at present. For example, a kind of automobile shock absorber bushing disclosed in Chinese Patent CN213451455U, the bushing includes a bushing inner tube, a rubber layer and a bushing outer tube. A through cavity is axially arranged in the middle of the bushing inner tube. The rubber layer is integrally vulcanized between the bushing inner tube and the bushing outer tube, and the rubber layer connects the bushing inner tube and the bushing outer tube into a whole; the bushing assembly further includes limiting blocks arranged at both ends of the bushing assembly. However, in order to achieve the limiting effect, the outer diameter of the limiting block is larger than that of the bushing, and the inner tube of the bushing and the limiting block are easily damaged during the assembly process.

[0003] In order to solve the above existing problems, people have been seeking an ideal technical solution. Content of the Utility Model

[0004] The purpose of the utility model is to aim at the deficiencies of the prior art, so as to provide a stable automobile shock absorber bushing.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A stable automobile shock absorber bushing includes a bushing inner tube and a bushing rubber sleeve. The bushing inner tube and the bushing rubber sleeve are coaxially arranged. One end of the bushing inner tube is provided with a fixed limiting block, and the fixed limiting block is integrally formed with the bushing inner tube. The other end of the bushing inner tube is provided with a movable limiting block, and the movable limiting block is detachably connected to the bushing inner tube; the inner wall of the bushing rubber sleeve is cylindrical and its inner diameter is adapted to the outer diameter of the bushing inner tube. Two groups of protrusions are arranged on the outer wall of the bushing rubber sleeve to form an M-shaped structure.

[0007] The other end of the bushing inner tube is provided with an annular groove. The movable limiting block is provided with a connecting cylinder corresponding to the annular groove. The inner wall of the connecting cylinder is provided with a first thread, and the annular groove is provided with a second thread corresponding to the first thread. The first thread and the second thread of the connecting cylinder and the annular groove are in threaded connection.

[0008] The outer wall of the connecting cylinder is provided with a plurality of installation grooves, and anti-detachment blocks are respectively arranged in each installation groove. The annular groove is respectively provided with positioning card slots corresponding to each anti-detachment block. The anti-detachment block and the installation groove are connected by an elastic member. In the natural state, the anti-detachment block is outside the installation groove, the elastic member contracts, and the anti-detachment block enters the inside of the installation groove.

[0009] The end face of the anti-detachment block away from the movable limiting block is an inclined surface.

[0010] The outer diameter of the end of the bushing rubber sleeve is smaller than the inner diameter of the eyelet. The protrusions on the outer wall of the bushing rubber sleeve are arc-shaped protrusions, and there is a smooth transition between the protrusions and the bushing rubber sleeve and between adjacent protrusions.

[0011] The outer sides of the fixed limit block and the movable limit block are conical surfaces, and the outer diameter of the end of the conical surface close to the eyelet is larger and equal to the outer diameter of the eyelet.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows. The present utility model provides a stable automotive shock absorber bushing with the advantages of simple structure and reasonable design, which can avoid damage to the limit block during the assembly process and facilitate the assembly of the bushing and the eyelet. Specifically, a fixed limit block is provided at one end of the bushing, and a detachable movable limit block is provided at the other end. During the assembly process, the movable limit block can be not installed first. After the eyelet and the bushing body are press-fitted, the movable limit block is installed, which not only reduces the assembly difficulty but also avoids damage to the limit block during the assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model.

[0014] Figure 2 is a schematic structural diagram of the present utility model with the movable limit block not assembled.

[0015] Figure 3 is a schematic cross-sectional structural diagram of the inner tube and the bushing rubber sleeve of the present utility model.

[0016] Figure 4 is a schematic structural diagram of the assembly of the present utility model and the eyelet.

[0017] In the figure: 1. Inner tube of the bushing; 2. Bushing rubber sleeve; 3. Fixed limit block; 4. Annular groove; 5. Movable limit block; 6. Connecting tube. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions of the present utility model will be further described in detail below through specific embodiments.

[0019] In the description of the utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. shall be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. "Installation", "provided with", "connection", etc. can adopt conventional means in the prior art, such as: integral setting, snap-in installation, welded connection, adhesive connection, bolt connection, etc. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances, and suitable connection, setting or installation methods can be selected in the prior art.

[0020] As Figures 1-4 shown, a stable automotive shock absorber bushing includes a bushing inner tube 1 and a bushing rubber sleeve 2. The bushing inner tube 1 and the bushing rubber sleeve 2 are coaxially arranged. One end of the bushing inner tube 1 is provided with a fixed limit block 3, and the fixed limit block 3 is integrally formed with the bushing inner tube 1. The other end of the bushing inner tube 1 is provided with a movable limit block 5, and the movable limit block 5 is detachably connected to the bushing inner tube 1. The inner wall of the bushing rubber sleeve 2 is cylindrical and its inner diameter is adapted to the outer diameter of the bushing inner tube 1. Two groups of protrusions are provided on the outer wall of the bushing rubber sleeve 2 to form a quasi-M-shaped structure, and protrusions are provided on the inner wall of the collar to be adapted to the outer contour of the bushing rubber sleeve.

[0021] This stable automotive shock absorber bushing has the advantages of simple structure and reasonable design, which can avoid damaging the limit block during the assembly process and facilitate the assembly of the bushing and the hanger. Specifically, a fixed limit block is provided at one end of the bushing, and a detachable movable limit block is provided at the other end. During the assembly process, the movable limit block can be not installed first. After the hanger and the bushing body are press-fitted, the movable limit block is then installed, which not only reduces the assembly difficulty but also avoids damaging the limit block during the assembly process.

[0022] In one embodiment, a circular groove 4 is provided at the other end of the bushing inner tube 1. The movable limit block 5 is provided with a connecting cylinder 6 corresponding to the circular groove 4. The inner wall of the connecting cylinder 6 is provided with a first thread, and the circular groove 4 is provided with a second thread corresponding to the first thread. The first thread and the second thread of the connecting cylinder 6 and the circular groove 4 are in threaded connection. After the hanger and the bushing body are assembled, the movable limit block is installed.

[0023] In one embodiment, a plurality of mounting grooves are provided on the outer wall of the connecting cylinder 6, and anti-detachment blocks are respectively arranged in each mounting groove. The annular groove 4 is respectively provided with positioning card slots corresponding to each anti-detachment block. The anti-detachment block is connected to the mounting groove through an elastic member. In the natural state, the anti-detachment block is outside the mounting groove, the elastic member contracts, and the anti-detachment block enters the inside of the mounting groove. Specifically, the elastic member can adopt a common spring or other elastic telescopic members. During the assembly of the movable limiting block, the anti-detachment block is pressed to make the elastic member contract, facilitating the anti-detachment block to enter the annular groove. After the thread is tightened, the anti-detachment block is correspondingly snapped into the positioning card slot.

[0024] In one embodiment, the end face of the anti-detachment block away from the movable limiting block 5 is a bevel, which facilitates the anti-detachment block to smoothly enter the annular groove during the assembly process.

[0025] In one embodiment, the outer diameter of the end of the bushing rubber sleeve 2 is smaller than the inner diameter of the lifting ring. The protrusions on the outer wall of the bushing rubber sleeve 2 are arc-shaped protrusions, and the transitions between the protrusions and the bushing rubber sleeve 2 and between adjacent two protrusions are smooth, reducing frictional losses.

[0026] In one embodiment, the outer sides of the fixed limiting block 3 and the movable limiting block 5 are conical surfaces, and the outer diameter of the end of the conical surface close to the lifting ring is larger and equal to the outer diameter of the lifting ring.

[0027] The above embodiments can be combined with each other.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that it is still possible to modify the specific implementation manners of the present invention or perform equivalent replacements for some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered by the scope of the technical solutions claimed by the present invention.

Claims

1. A stable automotive shock absorber bushing, characterized in that: It includes a bushing inner tube and a bushing rubber sleeve. The bushing inner tube and the bushing rubber sleeve are coaxially arranged. A fixed limit block is provided at one end of the bushing inner tube. The fixed limit block is integrally formed with the bushing inner tube. An active limit block is provided at the other end of the bushing inner tube. The active limit block is detachably connected to the bushing inner tube. The inner wall of the bushing rubber sleeve is cylindrical and its inner diameter is adapted to the outer diameter of the bushing inner tube. Two groups of protrusions are provided on the outer wall of the bushing rubber sleeve to form a structure similar to the letter "M".

2. The stable automotive shock absorber bushing according to claim 1, wherein: An annular groove is provided at the other end of the bushing inner tube. A connecting cylinder is provided on the active limit block corresponding to the annular groove. A first thread is provided on the inner wall of the connecting cylinder. A second thread is provided on the annular groove corresponding to the first thread. The first thread and the second thread of the connecting cylinder and the annular groove are in mating connection.

3. The stable automotive shock absorber bushing according to claim 2, wherein: A number of mounting grooves are provided on the outer wall of the connecting cylinder. Anti-detachment blocks are respectively arranged in the mounting grooves. Positioning card slots are respectively provided on the annular groove corresponding to the anti-detachment blocks. The anti-detachment blocks are connected to the mounting grooves through elastic members. In the natural state, the anti-detachment blocks are outside the mounting grooves and the elastic members contract, and the anti-detachment blocks enter the interior of the mounting grooves.

4. The stable automotive shock absorber bushing according to claim 3, characterized in that: The end face of the end of the anti-detachment block away from the active limit block is a bevel.

5. The stable automotive shock absorber bushing according to claim 4, wherein: The outer diameter of the end of the bushing rubber sleeve is smaller than the inner diameter of the lifting ring. The protrusions on the outer wall of the bushing rubber sleeve are arc-shaped protrusions. The transitions between the protrusions and the bushing rubber sleeve and between adjacent two protrusions are all smooth.

6. The stable automotive shock absorber bushing according to claim 5, characterized in that: The outer sides of the fixed limit block and the active limit block are conical surfaces. The outer diameter of the end of the conical surface close to the lifting ring is larger and equal to the outer diameter of the lifting ring.

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