Double-rubber damping bushing

Abstract

The utility model discloses a double-rubber shock-absorbing bushing which comprises an outer cylinder and an inner cylinder, a middle reinforcing plate is arranged on the inner side of the outer cylinder, the inner cylinder is inserted into the middle reinforcing plate, two rubber bodies are filled in the two ends between the outer cylinder and the inner cylinder respectively, an outer convex body is arranged on the outer side of one end of each rubber body, and the outer convex body is arranged on the outer side of the other end of each rubber body. A rubber body is arranged on the inner side of the outer cylinder, a convex body is arranged on the outer side of the outer cylinder, a first limiting groove and a second limiting groove are formed between the rubber body and the convex body, end reinforcing seats are arranged on the outer sides of the two ends of the inner cylinder, the first limiting groove is arranged on the outer side of one end of the outer cylinder in a sleeved mode, and the end reinforcing seats are matched with the second limiting groove in a clamped mode. The inner cylinder is inserted into the middle reinforcing plate, so that the structural strength of the interior of the outer cylinder is improved, meanwhile, the stability of insertion connection of the inner cylinder and the outer cylinder is improved, meanwhile, the end reinforcing seats are arranged on the outer sides of the two ends of the inner cylinder, the structural strength of the exteriors of the two ends of the inner cylinder is improved, and the damping bush is high in structural strength and long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of shock-absorbing bushings, in particular to a double-rubber shock-absorbing bushing. Background Art

[0002] Existing automotive bushings are mainly used as wear parts. Bushings are made of wear-resistant materials and rub against the surface they contact. Bushings are generally soft materials and have a certain degree of avoidance and wear during friction. Bushings use the surface they contact to wear the bushings and protect the surface they contact. They are replaced when the wear reaches a certain level.

[0003] The prior art discloses an automotive rubber shock-absorbing bushing with application number 201810942813.0, comprising a plastic outer cylinder, a rubber sleeve provided on a circle on the inner ring surface of the plastic outer cylinder, a metal inner cylinder provided on the side surface of the rubber sleeve away from the plastic outer cylinder, the rubber sleeve fixedly clamped between the inner ring surface of the plastic outer cylinder and the inner ring surface of the metal inner cylinder, a first connecting groove provided around the top and bottom of the outer ring surface of the plastic outer cylinder, a first fixing cover threadedly connected to the surface of the first connecting groove, and the automotive rubber shock-absorbing bushing achieves the purpose of being easy to use. The entire automotive rubber shock-absorbing bushing is easy to disassemble and assemble, and easy to produce. The bushing has two different fixing points and fixing methods, and has a wide range of applications and a wide range of uses. The second fixing device can play a good buffering and shock-absorbing role on the bushing and the automotive parts on which it is mounted, which is beneficial to extending its service life. However, the stability of the connection between the internal parts of the shock-absorbing bushing is relatively general, and the structural strength of the shock-absorbing bushing is relatively low, which affects its service life. Utility Model Content

[0004] The purpose of the utility model is to provide a double rubber shock-absorbing bushing to solve the problems in the prior art that the stability of the connection between the internal parts of the shock-absorbing bushing is relatively general and the structural strength of the shock-absorbing bushing is relatively low, which affects the service life.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double rubber shock-absorbing bushing, comprising an outer cylinder and an inner cylinder, a middle reinforcement plate being provided on the inner side of the outer cylinder, the inner cylinder being inserted into the middle reinforcement plate, two rubber bodies being filled in the interiors of both ends between the outer cylinder and the inner cylinder respectively, an outer convex body being provided on the outer side of one end of the rubber body, and a first limiting groove and a second limiting groove being provided between the rubber body and the outer convex body, end reinforcement seats being provided on the outer sides of both ends of the inner cylinder, the first limiting groove being sleeved on the outer side of one end of the outer cylinder, the end reinforcement seat being engaged with the second limiting groove, and a chamfered end surface being provided on the outer side of the outer convex body.

[0006] Furthermore, the middle reinforcement plate is an annular plate, and multiple groups of middle reinforcement plates are provided in parallel.

[0007] Furthermore, a positioning column is provided on one side of the middle reinforcing plate, and a positioning groove for inserting and cooperating with the positioning column is provided on one end of the rubber body.

[0008] Furthermore, a positioning convex ball is provided at one end of the positioning post, and the outer diameter of the positioning convex ball is larger than the outer diameter of the positioning post.

[0009] Furthermore, the inner walls at both ends of the inner cylinder are provided with internal threads, and the outer side of one end of the end reinforcement seat is provided with external threads that match the internal threads.

[0010] Furthermore, a through hole is provided in the middle of the end reinforcement seat, and the end reinforcement seat is symmetrically arranged in two groups with respect to the inner cylinder.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model provides a middle reinforcement plate on the inside of the outer cylinder, the middle reinforcement plate is an annular plate, and multiple groups of middle reinforcement plates are provided in parallel. The inner cylinder is inserted into the middle reinforcement plate, which increases the structural strength of the inner cylinder and is beneficial to improving the stability of the plug-in connection between the inner cylinder and the outer cylinder. At the same time, end reinforcement seats are provided on the outer sides of both ends of the inner cylinder, which increases the structural strength of the outer sides of both ends of the inner cylinder, so that the shock-absorbing bushing has high structural strength and a long service life.

[0013] 2. The utility model provides an outer convex body on the outside of one end of the rubber body, and a first limiting groove and a second limiting groove are provided between the rubber body and the outer convex body. End reinforcement seats are provided on the outside of both ends of the inner cylinder. The first limiting groove is sleeved on the outside of one end of the outer cylinder, and the end reinforcement seat is engaged with the second limiting groove, which can wrap the rubber body around the outside of the outer cylinder and one end of the end reinforcement seat, which is beneficial to improving the stability of the mutual connection and fixation between the outer cylinder, the inner cylinder and the rubber body.

[0014] 3. The utility model is provided with a positioning column on one side of the middle reinforcing plate, a positioning convex ball is provided at one end of the positioning column, and the outer diameter of the positioning convex ball is larger than the outer diameter of the positioning column, and a positioning groove is provided at one end of the rubber body to cooperate with the positioning column. Inserting one end of the rubber body into the positioning column on one side of the middle reinforcing plate through the positioning groove is conducive to improving the structural stability of the rubber body installed inside the shock-absorbing bushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2This is a main cross-sectional view of the overall structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the rubber body structure of the utility model;

[0019] Figure 4 It is a longitudinal section view of the outer cylinder of the present utility model.

[0020] In the figure: 1. outer cylinder; 2. middle reinforcement plate; 3. inner cylinder; 4. positioning column; 5. positioning groove; 6. end reinforcement seat; 7. rubber body; 8. outer protrusion; 9. first limiting groove; 10. chamfered end face; 11. internal thread; 12. external thread; 13. second limiting groove; 14. positioning convex ball; 15. through hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 In the embodiment of the utility model, a double rubber shock-absorbing bushing includes an outer cylinder 1 and an inner cylinder 3. A middle reinforcement plate 2 is provided on the inner side of the outer cylinder 1. The middle reinforcement plate 2 is an annular plate, and multiple groups of middle reinforcement plates 2 are provided in parallel. The provision of the middle reinforcement plate 2 increases the structural strength of the inner cylinder 1. The inner cylinder 3 is inserted into the middle reinforcement plate 2, which is beneficial to improving the stability of the plug-in connection between the inner cylinder 3 and the outer cylinder 1. End reinforcement seats 6 are provided on the outer sides of both ends of the inner cylinder 3. A through hole 15 is provided in the middle of the end reinforcement seat 6, and the end reinforcement seats 6 are symmetrical with respect to the inner cylinder 3. Internal threads 11 are provided on the inner walls of both ends of the inner cylinder 3, and external threads 12 that are threadedly matched with the internal threads 11 are provided on the outer side of one end of the end reinforcement seat 6, which increases the structural strength of the outer sides of the inner cylinder 3, making the shock-absorbing bushing have high structural strength and long service life.

[0023] like Figure 2 and Figure 3As shown, in order to improve the stability of the mutual connection and fixation between the outer cylinder 1, the inner cylinder 3 and the rubber body 7, two rubber bodies 7 are respectively filled inside the two ends between the outer cylinder 1 and the inner cylinder 3, and an outer convex body 8 is provided on the outside of one end of the rubber body 7, and a first limiting groove 9 and a second limiting groove 13 are provided between the rubber body 7 and the outer convex body 8. The first limiting groove 9 is sleeved on the outside of one end of the outer cylinder 1, and the end reinforcement seat 6 is engaged with the second limiting groove 13. A chamfered end surface 10 is provided on the outside of the outer convex body 8, which can wrap the rubber body 7 around the outside of the outer cylinder 1 and one end of the end reinforcement seat 6, which is beneficial to improving the stability of the mutual connection and fixation between the outer cylinder 1, the inner cylinder 3 and the rubber body 7.

[0024] like Figure 2 and Figure 4 As shown, in order to improve the structural stability of the rubber body 7 installed inside the shock-absorbing bushing, a positioning column 4 is further provided on one side of the middle reinforcing plate 2, and a positioning convex ball 14 is provided at one end of the positioning column 4, and the outer diameter of the positioning convex ball 14 is larger than the outer diameter of the positioning column 4. A positioning groove 5 is provided at one end of the rubber body 7 for inserting and matching with the positioning column 4. Inserting and matching one end of the rubber body 7 with the positioning column 4 on one side of the middle reinforcing plate 2 through the positioning groove 5 is beneficial to improving the structural stability of the rubber body 7 installed inside the shock-absorbing bushing.

[0025] The working principle and usage process of the utility model: when in use, the middle reinforcing plate 2 is provided on the inner side of the outer cylinder 1, and the middle reinforcing plate 2 is an annular plate, and multiple groups of middle reinforcing plates 2 are provided in parallel. The setting of the middle reinforcing plate 2 increases the structural strength of the inner part of the outer cylinder 1. At the same time, the inner cylinder 3 is inserted into the middle reinforcing plate 2, which is beneficial to improve the stability of the plug-in connection between the inner cylinder 3 and the outer cylinder 1. At the same time, end reinforcement seats 6 are provided on the outer sides of both ends of the inner cylinder 3, which increases the structural strength of the outer sides of the inner cylinder 3, so that the shock-absorbing bushing has high structural strength and a long service life.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A double rubber shock-absorbing bushing, comprising an outer cylinder (1) and an inner cylinder (3), characterized in that: A middle reinforcing plate (2) is provided on the inner side of the outer cylinder (1), and the inner cylinder (3) is inserted into the middle reinforcing plate (2). Two rubber bodies (7) are respectively filled in the interior of the two ends between the outer cylinder (1) and the inner cylinder (3). An outer convex body (8) is provided on the outer side of one end of the rubber body (7), and a first limiting groove (9) and a second limiting groove (13) are provided between the rubber body (7) and the outer convex body (8). End reinforcing seats (6) are provided on the outer sides of both ends of the inner cylinder (3), and the first limiting groove (9) is sleeved on the outer side of one end of the outer cylinder (1). The end reinforcing seat (6) is engaged with the second limiting groove (13).

2. The double rubber shock-absorbing bushing according to claim 1, characterized in that: The middle reinforcement plate (2) is an annular plate, and multiple groups of the middle reinforcement plates (2) are arranged in parallel.

3. The double rubber shock-absorbing bushing according to claim 2, characterized in that: A positioning column (4) is provided on one side of the middle reinforcing plate (2), and a positioning groove (5) that is inserted and matched with the positioning column (4) is provided on one end of the rubber body (7).

4. The double rubber shock-absorbing bushing according to claim 3, characterized in that: A positioning convex ball (14) is provided at one end of the positioning post (4), and the outer diameter of the positioning convex ball (14) is larger than the outer diameter of the positioning post (4).

5. The double rubber shock-absorbing bushing according to claim 1, characterized in that: Internal threads (11) are provided on the inner walls at both ends of the inner cylinder (3), and external threads (12) are provided on the outer side of one end of the end reinforcement seat (6) and are threadably matched with the internal threads (11).

6. The double rubber shock-absorbing bushing according to claim 1, characterized in that: A through hole (15) is provided in the middle of the end reinforcement seat (6), and the end reinforcement seats (6) are symmetrically arranged in two groups with respect to the inner cylinder (3).

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