Large bush of rear pull rod of automobile
By incorporating anti-slip structures and hollow designs on the outer walls of the upper and lower bushings of the rear tie rod bushing, the problem of unstable connection caused by bushing wear is solved, achieving a stable fit and lightweight effect.
Patent Information
- Application Number
- CN202421585130.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-07-05
AI Technical Summary
The rear tie rod bushing of a car is prone to wear after prolonged use, which can lead to an unstable connection with the frame and slippage.
A first anti-slip structure and a second anti-slip structure are respectively provided on the outer walls of the upper bushing and the lower bushing. They are made of rubber and combined with a hollow structure design to improve anti-slip performance. The rod body, the upper bushing and the lower bushing are connected by bolt assemblies to enhance the connection stability.
It improves the fit and stability of the bushing with the frame, prevents slippage, enhances fatigue resistance, and reduces overall weight.
Smart Images
Figure CN223676774U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of automobile accessories, and in particular to a large bushing of an automobile rear pull rod. BACKGROUND
[0002] The bushing is a matched part used outside a mechanical component to achieve the effects of sealing and wear protection, and refers to a ring sleeve serving as a gasket. The bushing is generally used in the fields of machinery and valves, such as machine tools, automobiles and valves, wherein the power assembly system in the automobile is a common mechanism of the bushing, and the rear pull rod in the power assembly system is used to control the movement displacement and torsion angle of the power assembly, reduce the vibration and noise of the automobile body itself, and the rear pull rod is generally composed of a rod body, a small bushing and a large bushing. The large bushing of the rear pull rod is assembled in the bushing hole of the vehicle frame. During the driving process, the automobile power assembly generates a torque on the rear pull rod suspension, the large bushing is easily deformed under the action of tension and pressure, and after long-time use, the large bushing is prone to wear, which causes the rear pull rod to slip in the bushing hole of the vehicle frame, and the connection between the rear pull rod and the vehicle frame is unstable. SUMMARY
[0003] The purpose of the application is to provide a large bushing of an automobile rear pull rod, which can be firmly embedded in the bushing hole of the vehicle frame, so that the connection between the rear pull rod and the vehicle frame is stable.
[0004] To achieve the above purpose, the technical scheme adopted by the application is as follows: a large bushing of an automobile rear pull rod, the rear pull rod comprising a rod body, one end of the rod body being provided with a small bushing, the other end of the rod body being connected with the large bushing, the side of the large bushing being provided with a insertion hole, the other end of the rod body being inserted into the large bushing through the insertion hole, the large bushing comprising an upper bushing and a lower bushing stacked together, the other end of the rod body being arranged between the upper bushing and the lower bushing, the upper bushing, the lower bushing and the other end of the rod body being connected together through a bolt assembly, the outer wall of the upper bushing being provided with a first anti-skid structure with concave-convex surfaces along the circumference thereof, the outer wall of the lower bushing being provided with a second anti-skid structure with concave-convex surfaces along the circumference thereof.
[0005] Compared with the prior art, the application has the advantages that the first anti-skid structure and the second anti-skid structure are respectively arranged on the outer walls of the upper bushing and the lower bushing, the anti-skid performance of the large bushing is improved, the large bushing can be firmly embedded in the bushing hole of the vehicle frame, and the connection between the rear pull rod and the vehicle frame is stable.
[0006] In some embodiments of the application, the first anti-skid structure has a first convex surface and a first concave surface which are both arc-shaped, the first anti-skid structure with concave-convex surfaces refers to that the first convex surface and the first concave surface are arranged adjacent to each other; the second anti-skid structure has a second convex surface and a second concave surface which are both arc-shaped, the second anti-skid structure with concave-convex surfaces refers to that the second convex surface and the second concave surface are arranged adjacent to each other.
[0007] In some embodiments of the present application, the upper bushing comprises an upper skeleton barrel, a first rubber body wrapped on the upper skeleton barrel, a first metal piece embedded on the first rubber body, and the first anti-skid structure is located on the outer wall surface of the first rubber body; the lower bushing comprises a lower skeleton barrel, a second rubber body wrapped on the lower skeleton barrel, a second metal piece embedded on the second rubber body, and the second anti-skid structure is located on the outer wall surface of the second rubber body. The first anti-skid structure and the second anti-skid structure are made of rubber material, which can better prevent the large bushing from slipping with the frame, and are wear-resistant, thereby improving the fatigue resistance of the bushing.
[0008] In some embodiments of the present application, the upper bushing and the lower bushing both have a hollow structure. The hollow structure has the purposes of reducing the overall weight and providing a deformation space for the large bushing under stress.
[0009] In some embodiments of the present application, the first metal piece is in an inner-outer sleeve connection with the first rubber body, the first metal piece is provided with a first assembly hole; the second metal piece is in an inner-outer sleeve connection with the second rubber body, the second metal piece is provided with a second assembly hole arranged correspondingly to the first assembly hole, and the first assembly hole and the second assembly hole are coaxially arranged.
[0010] In some embodiments of the present application, the top of the first metal piece is provided with a first weight-reducing structure, the first weight-reducing structure comprises a plurality of weight-reducing holes and a plurality of weight-reducing grooves; and the bottom of the second metal piece is provided with a second weight-reducing structure. The overall weight of the large bushing is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a three-dimensional structure schematic diagram of the present application;
[0012] Figure 2 It is a schematic diagram of the connection structure of the large bushing and the rear pull rod;
[0013] Figure 3 It is a schematic diagram of the separation structure of the upper bushing and the lower bushing Figure 1 ;
[0014] Figure 4 It is a schematic diagram of the separation structure of the upper bushing and the lower bushing Figure 2 ;
[0015] Figure 5 It is an exploded view of the structure of the upper bushing;
[0016] Figure 6 It is an exploded view of the structure of the lower bushing.
[0017] In the diagram: 1. Upper bushing; 2. Lower bushing; 3. First rubber body; 4. First metal part; 5. Upper skeleton cylinder; 6. Second rubber body; 7. Second metal part; 8. Lower skeleton cylinder; 9. First anti-slip structure; 10. Second anti-slip structure; 11. Hollowed-out structure; 12. First raised surface; 13. First recessed surface; 14. Second raised surface; 15. Second recessed surface; 16. First mounting hole; 17. Second mounting hole; 18. First weight-reducing structure; 19. Second weight-reducing structure; 20. Buffer structure; 21. Rod; 22. Small bushing; 23. Chamfered structure. Detailed Implementation
[0018] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0019] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.
[0020] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0021] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.
[0022] like Figures 1-6 As shown, a large bushing for a car rear tie rod includes an upper bushing 1 and a lower bushing 2 stacked together. The upper bushing 1 includes a first rubber body 3 and a first metal part 4. The first metal part 4 is embedded in the middle of the first rubber body 3 and the first metal part 4 and the first rubber body 3 are in an inner and outer sleeve connection. The outer wall of the first rubber body 3 is provided with a first anti-slip structure 9 with alternating concave and convex shapes along its circumference. Both the upper bushing 1 and the lower bushing 2 are provided with a hollow structure 11.
[0023] The lower bushing 2 comprises a second rubber body 6 and a second metal piece 7, the second metal piece 7 is embedded in the middle of the second rubber body 6, the second metal piece 7 is in an inner and outer sleeve connection with the second rubber body 6, and the outer wall of the second rubber body 6 is provided with a second anti-skid structure 10 with concave-convex alternating along the circumference thereof.
[0024] The first anti-skid structure 9 has a first convex surface 12 and a first concave surface 13, both of which are arc-shaped, and the concave-convex alternating first anti-skid structure 9 means that the first convex surface 12 is arranged adjacent to the first concave surface 13; the second anti-skid structure 10 has a second convex surface 14 and a second concave surface 15, both of which are arc-shaped, and the concave-convex alternating second anti-skid structure 10 means that the second convex surface 14 is arranged adjacent to the second concave surface 15; the combined ends of the upper bushing and the lower bushing are each provided with a chamfer structure 23, which facilitates the installation of the upper bushing 1 and the lower bushing 2 onto the vehicle frame.
[0025] The first metal piece 4 is in an inner and outer sleeve connection with the first rubber body 3, and the first metal piece 4 is provided with a first assembly hole 16; the second metal piece 7 is in an inner and outer sleeve connection with the second rubber body 6, and the second metal piece 7 is provided with a second assembly hole 17 arranged corresponding to the first assembly hole 16, and the first assembly hole 16 and the second assembly hole 17 are coaxially arranged.
[0026] The first metal piece 4 is provided with a first weight reduction structure 18 at the top, and the first weight reduction structure 18 comprises a plurality of weight reduction holes and a plurality of weight reduction grooves; the second metal piece 7 is provided with a second weight reduction structure 19 at the bottom. The overall weight of the large bushing is reduced.
[0027] The upper bushing 1 further comprises an annular upper skeleton cylinder 5, which is covered by the first rubber body 3; the lower bushing 2 further comprises an annular lower skeleton cylinder 8, which is covered by the second rubber body 6.
[0028] The hollow structure 11 of the upper bushing 1 is arranged corresponding to the hollow structure 11 of the lower bushing 2, and the hollow structure 11 of both the upper bushing 1 and the lower bushing 2 is provided with a buffer structure 20, which prevents excessive impact.
[0029] The large bushing is provided with a bushing at the side, and the rear pull rod comprises a rod body 21, one end of the rod body 21 is provided with a small bushing 22, the other end of the rod body 21 is connected to the large bushing, the large bushing is provided with a bushing at the side, the other end of the rod body 21 is inserted into the bushing of the large bushing, the other end of the rod body 21 is arranged between the upper bushing 1 and the lower bushing 2, and the upper bushing 1, the lower bushing 2 and the other end of the rod body 21 are connected together through a bolt assembly.
[0030] The foregoing describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments, and the above-described embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.
Claims
1. A large bushing for a car rear tie rod, the tie rod comprising a rod body (21), one end of the rod body (21) having a small bushing (22), the other end of the rod body (21) being connected to the large bushing, the large bushing having an insertion hole on its side, the other end of the rod body (21) being inserted into the insertion hole and plugged into the large bushing, the large bushing comprising an upper bushing (1) and a lower bushing (2) stacked together, the other end of the rod body (21) being disposed between the upper bushing (1) and the lower bushing (2), the upper bushing (1), the lower bushing (2), and the other end of the rod body (21) being connected together by a bolt assembly, characterized in that: The outer wall of the upper bushing (1) is provided with a first anti-skid structure (9) with concave-convex alternation along the circumference thereof, and the outer wall of the lower bushing (2) is provided with a second anti-skid structure (10) with concave-convex alternation along the circumference thereof.
2. The large bushing for a rear tie rod of an automobile according to claim 1, characterized by: The first anti-skid structure (9) has a first convex surface (12) and a first concave surface (13) which are both arc-shaped, and the concave-convex alternation of the first anti-skid structure (9) means that the first convex surface (12) is arranged adjacent to the first concave surface (13). The second anti-skid structure (10) has a second convex surface (14) and a second concave surface (15) which are both arc-shaped, and the concave-convex alternation of the second anti-skid structure (10) means that the second convex surface (14) is arranged adjacent to the second concave surface (15).
3. The large bushing for a rear tie rod of an automobile according to claim 2, characterized in that: The upper bushing (1) comprises an upper skeleton barrel (5), a first rubber body (3) wrapped on the upper skeleton barrel (5), and a first metal piece (4) embedded on the first rubber body (3), and the first anti-skid structure (9) is located on the outer wall surface of the first rubber body (3); the lower bushing (2) comprises a lower skeleton barrel (8), a second rubber body (6) wrapped on the lower skeleton barrel (8), and a second metal piece (7) embedded on the second rubber body (6), and the second anti-skid structure (10) is located on the outer wall surface of the second rubber body (6).
4. The large bushing for a rear tie rod of a vehicle according to claim 3, characterized in that: The upper bushing (1) and the lower bushing (2) both have a hollow structure (11).
5. The large bushing of a rear tie rod of a vehicle according to claim 3 or 4, characterized in that: The first metal piece (4) is in an inner-outer sleeve connection with the first rubber body (3), and the first metal piece (4) is provided with a first assembly hole (16); the second metal piece (7) is in an inner-outer sleeve connection with the second rubber body (6), and the second metal piece (7) is provided with a second assembly hole (17) arranged correspondingly to the first assembly hole (16), and the first assembly hole (16) and the second assembly hole (17) are coaxially arranged.
6. The large bushing for a rear tie rod of a vehicle according to claim 5, characterized by: The top of the first metal piece (4) is provided with a first weight-reducing structure (18) comprising a plurality of weight-reducing holes and a plurality of weight-reducing grooves; and the bottom of the second metal piece (7) is provided with a second weight-reducing structure (19).