Low-cost rear pull rod

Abstract

The utility model relates to the technical field of rear pull rods, and discloses a low-cost rear pull rod which comprises a rubber body and two support bodies welded oppositely, a small bush and a large bush are integrally formed at the two ends of the rubber body respectively, and an inner pipe and an inner core are placed at the positions, corresponding to the small bush and the large bush, of the two ends of each support body respectively. An inner hole penetrates through the upper top end of the small lining, the inner pipe is connected to the interior of the small lining in a vulcanized mode, the support body, the inner pipe and the inner core are integrally vulcanized, the connectivity between structures can be enhanced in the vulcanization process, after vulcanization is completed, due to the integrated structure, the assembling procedure can be omitted, and therefore the purpose of reducing cost is achieved; meanwhile, a finished product can be rapidly obtained, meanwhile, the support body is of a metal plate structure, high strength can be provided, the cost is lower compared with extruded aluminum materials and die-casting aluminum, the support is arranged in a full-rubber-coating mode, the surface protection treatment cost can be saved, and the needed cost is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rear pull rods, and in particular to a low-cost rear pull rod. Background Art

[0002] In the power suspension system, the rear tie rod is an important connecting and supporting component. The main function of the rear tie rod is to provide stability and support for the vehicle body during driving, especially when turning and accelerating. At the same time, the rear tie rod can reduce the vibration and bumps of the vehicle body by controlling the movement of the suspension system, thereby improving the comfort and smoothness of the ride.

[0003] The rear tie rod is generally composed of a bracket, an inner core, an inner tube and other structures. In the prior art, the rear tie rod is generally assembled by first placing the bracket into a specific mold for vulcanization to form a corresponding shape, and then pressing the inner tube and the inner core into it. Although this method can quickly install the tie rod, this installation method requires staff to perform assembly work after the bracket is vulcanized according to the mold, which is time-consuming and laborious and cannot quickly obtain a finished product. Utility Model Content

[0004] The utility model aims to provide a low-cost rear pull rod, which solves the problem that a bracket is placed in a specific mold for vulcanization to form a corresponding shape, and then an inner tube and an inner core are pressed into it. Although this method can quickly install the pull rod, this installation method requires staff to perform assembly work after the bracket is vulcanized according to the mold, which is time-consuming and labor-intensive and cannot quickly obtain a finished product.

[0005] The utility model provides the following technical solution: a low-cost rear pull rod, comprising a rubber body and two relatively welded bracket bodies, wherein a small bushing and a large bushing are integrally formed at both ends of the rubber body, an inner tube and an inner core are placed at the positions of the small bushing and the large bushing at both ends of the bracket body, an inner hole passes through the upper top end of the small bushing, the inner tube is vulcanized and connected to the inside of the small bushing, and a placement end is integrally formed at the center of the large bushing.

[0006] By adopting the above technical solution, the rear pull rod is formed by two relatively welded bracket bodies, an inner tube and an inner core. In order to increase the service life of the rear pull rod, a protective layer is formed on its outside by vulcanization, and this protective layer is formed by vulcanizing a rubber body. The inner tube and the inner core are arranged in a large bushing and a small bushing, and they are also fixed by vulcanization to avoid falling off during use.

[0007] As a preferred embodiment of the above technical solution, the placement end includes an inner cavity located at the center of the large bushing and an integrally formed connector for offsetting vibration. The inner core is vulcanized and connected to the center of the inner cavity. Both ends of the inner cavity are formed with arc-shaped inner concave holes for increasing buffering.

[0008] By adopting the above technical solution, the inner cavity part is arranged at the center part of the large bushing through the connector, and the inner core is also vulcanized at the center of the inner cavity part. When the rear pull rod is in use, it will generate certain vibrations due to other components. By adding the connector, the vibration is dispersed to the entire rear pull rod to avoid damage to the connector due to excessive pulling. At the same time, the use of the inner concave hole can increase the X-direction movement of the rear pull rod.

[0009] As a preferred embodiment of the above technical solution, a secondary anti-collision block for buffering is fixedly connected to one end of the inner cavity part close to the small bushing, and a main anti-collision block cooperating with the inner concave hole is fixedly connected to the inner wall of the large bushing at the interval between the two connectors.

[0010] By adopting the above technical solution, when the inner core moves in the X direction due to the drive of the external structure, the auxiliary anti-collision block applies pressure to the inside of the large bushing to reduce the impact force generated, and the impact force is further reduced by the cooperation between the inner concave hole and the main anti-collision block, thereby increasing the service life and avoiding the impact force from not being released, resulting in damage and affecting use.

[0011] As a preferred embodiment of the above technical solution, a plurality of square holes for increasing the connection are opened on the upper top of the bracket body, and the plurality of square holes cooperate with each other to form a grid structure.

[0012] By adopting the above technical solution, during the vulcanization process, the vulcanized rubber part can be further connected to the bracket body through the grid-like structure, thereby increasing the connectivity and avoiding the occurrence of hollowing between the rubber part and the bracket body due to insufficient connection during use.

[0013] As a preferred embodiment of the above technical solution, the inner tube and the upper top of the inner core are penetrated by circular through holes for connecting to an external suspension system.

[0014] By adopting the above technical solution, the external power structure, the inner tube and the inner core can be connected to each other in the form of a through hole during use, thereby completing the installation of the rear pull rod.

[0015] As a preferred embodiment of the above technical solution, the bracket body is made of sheet metal.

[0016] By adopting the above technical solution, the bracket body is made of sheet metal, which not only has good high-strength physical properties, but also has lower cost than traditional extruded aluminum or die-cast aluminum, further reducing the cost of processing and manufacturing.

[0017] As a preferred embodiment of the above technical solution, the rubber body is vulcanized and connected to the outside of the bracket body, the inner tube and the inner core.

[0018] By adopting the above technical solution, the one-piece molding method can be faster during processing and manufacturing, reducing the subsequent assembly steps required, and the finished product can be obtained more quickly. At the same time, the one-piece setting can reduce the surface protection treatment steps after molding.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] In the utility model, the bracket body, inner tube and inner core are vulcanized in one piece, which not only strengthens the connectivity between the structures during the vulcanization process, but also saves the assembly process after the vulcanization is completed, thereby reducing costs and enabling the finished product to be obtained quickly. At the same time, the bracket body adopts a sheet metal structure, which can provide high strength and is lower in cost than extruded aluminum and die-cast aluminum. The bracket adopts a full rubber-encapsulated setting, which can save the cost of surface protection treatment to further reduce the required cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a low-cost rear tie rod structure;

[0022] Figure 2 A schematic diagram of the overall split structure of a low-cost rear tie rod;

[0023] Figure 3 This is a schematic diagram of the structure of a rubber body in a low-cost rear tie rod;

[0024] Figure 4 This is a schematic diagram of the main structure of a low-cost rear tie rod center bracket.

[0025] In the figure: 1, rubber body; 11, small bushing; 111, inner hole; 12, large bushing; 13, inner cavity part; 14, connector; 15, inner concave hole; 16, main anti-collision block; 17, auxiliary anti-collision block; 2, bracket body; 21, inner tube; 22, inner core; 23, square hole; 24, through hole. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] like Figure 1 and Figure 2 As shown, the utility model provides a technical solution: a low-cost rear pull rod, including a rubber body 1 and two relatively welded bracket bodies 2, the two ends of the rubber body 1 are respectively integrally formed with a small bushing 11 and a large bushing 12, the two ends of the bracket body 2 are respectively placed at the positions of the small bushing 11 and the large bushing 12, the rubber body 1 is vulcanized and connected to the outside of the bracket body 2, the inner tube 21 and the inner core 22, the integrated setting will be faster to form, can not affect the quality, but also increase the corresponding efficiency, greatly improve the production efficiency, the upper top of the small bushing 11 An inner hole 111 passes through the end, and the inner tube 21 is vulcanized and connected to the inside of the small bushing 11, which can limit the inner tube 21. A placement end is integrally formed at the center of the large bushing 12. The placement end includes an inner cavity part 13 located at the center of the large bushing 12 and an integrally formed connector 14 for offsetting the vibration, so as to disperse the impact force generated on the rear pull rod as a whole to avoid concentration in a certain place. The inner core 22 is vulcanized and connected to the center of the inner cavity part 13 to limit it. Both ends of the inner cavity part 13 are formed with arc-shaped inner concave holes 15 for increasing buffering, so as to increase the impact resistance of the inner cavity part 13.

[0028] like Figure 3 and Figure 4 As shown, a secondary anti-collision block 17 for buffering is fixedly connected to the end of one side of the inner cavity part 13 close to the small bushing 11, and the secondary anti-collision block 17 hits the inner wall of the large bushing 12 to prevent the inner cavity part 13 from directly hitting the large bushing 12. The inner wall of the large bushing 12 is located at the interval between the two connectors 14 and is fixedly connected with a main anti-collision block 16 that cooperates with the inner concave hole 15 to increase the corresponding impact resistance. A plurality of square holes 23 for increasing the connection are opened at the upper top of the bracket body 2. The plurality of square holes 23 cooperate with each other to form a grid structure, which can disperse and connect the vulcanized rubber body 1 on the bracket body 2, thereby increasing the connectivity. The upper tops of the inner tube 21 and the inner core 22 are penetrated by circular through holes 24 for connecting to the external suspension system, and the bracket body 2 is made of sheet metal.

[0029] Working principle: The bracket body 2, the inner tube 21 and the inner core 22 are placed in the corresponding mold, and then they are melted through the rubber body 1 and vulcanized with it. The integrated vulcanization can strengthen the connectivity between the structures. After the vulcanization is completed, the assembly process can be omitted due to the integrated structure, thereby reducing the cost and quickly obtaining the finished product. At the same time, the bracket body 2 adopts a sheet metal structure, which can provide high strength and has a lower cost than extruded aluminum and die-cast aluminum. The bracket adopts a full rubber encapsulation setting, which can save the cost of surface protection treatment to further reduce the required cost. In order to avoid hollowing between the rubber body 1 and the bracket body 2 due to long-term wear during use, thereby causing damage to the rubber body 1, a number of square holes 23 are opened on the outer wall of the bracket body 2, and the square holes 23 form a grid structure, which can enable the rubber body 1 to fully contact the bracket body 2 during vulcanization, thereby making the connectivity between the rubber body 1 and the bracket body 2 tighter, increasing its connectivity to avoid hollowing between the rubber body 1 and the bracket body 2.

[0030] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A low-cost rear tie rod, comprising a rubber body (1) and two bracket bodies (2) welded relative to each other, characterized in that: A small bushing (11) and a large bushing (12) are integrally formed at both ends of the rubber body (1), an inner tube (21) and an inner core (22) are placed at positions corresponding to the small bushing (11) and the large bushing (12) at both ends of the bracket body (2), an inner hole (111) passes through the upper top of the small bushing (11), the inner tube (21) is vulcanized and connected to the inside of the small bushing (11), and a placement end is integrally formed at the center of the large bushing (12).

2. A low-cost rear tie rod according to claim 1, characterized in that: The placement end comprises an inner cavity part (13) located at the center of the large bushing (12) and an integrally formed connector (14) for offsetting vibration, the inner core (22) is vulcanized and connected to the center of the inner cavity part (13), and both ends of the inner cavity part (13) are formed with arc-shaped inner concave holes (15) for increasing buffering.

3. A low-cost rear tie rod according to claim 2, characterized in that: A secondary anti-collision block (17) for buffering is fixedly connected to one end of the inner cavity part (13) close to the small bushing (11), and a main anti-collision block (16) cooperating with the inner concave hole (15) is fixedly connected to the inner wall of the large bushing (12) at the interval between the two connecting bodies (14).

4. The low-cost rear tie rod according to claim 1, characterized in that: A plurality of square holes (23) for increasing connection are provided at the upper top of the bracket body (2), and the plurality of square holes (23) cooperate with each other to form a grid-like structure.

5. The low-cost rear tie rod according to claim 1, characterized in that: The upper ends of the inner tube (21) and the inner core (22) are both penetrated by circular through holes (24) for connecting to an external suspension system.

6. The low-cost rear tie rod according to claim 1, characterized in that: The bracket body (2) is made by sheet metal processing.

7. The low-cost rear tie rod according to claim 1, characterized in that: The rubber body (1) is vulcanized and connected to the outside of the support body (2), the inner tube (21) and the inner core (22).

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