Anti-falling automobile control arm lining

Abstract

The utility model relates to an anti-drop automobile control arm bushing which is composed of a bushing body and a control arm body, the bushing body extends left and right in the length direction, the bushing body is inserted into the control arm body, and the anti-drop automobile control arm bushing is characterized in that an installation groove is formed in the control arm body, the bushing body comprises a first limiting part, an insertion part and a second limiting part, the inserting part is located in the mounting groove, the first limiting part is located on the left side of the mounting groove and abuts against the control arm body, the second limiting part is located on the right side of the mounting groove and abuts against the control arm body, and the first limiting part is detachably connected with the inserting part. By the adoption of the scheme, the anti-falling automobile control arm lining does not fall off in the axial direction after the lining body is installed on the control arm body.

Description

Technical Field

[0001] The utility model relates to a bushing, in particular to an anti-falling automobile control arm bushing. Background Art

[0002] The automobile control arm is an important component of the automobile suspension system. Its main function is to connect the wheel with the body or subframe, guide and constrain the movement of the wheel, and ensure that the vehicle maintains ideal driving stability and handling during driving. The automobile control arm bushing is a key elastic element installed at the connection between the control arm and the body or subframe in the automobile suspension system. Its main functions include force transmission, vibration isolation, motion guidance and protection of the suspension structure from excessive wear.

[0003] Most of the existing automobile control arms are formed by one-piece molding or sleeve-mounted or inserted bushings. One-piece molding is not convenient for replacing bushings, while directly sleeved bushings are easy to fall off during the driving of the vehicle. Once they fall off: 1. It will cause the connection between the control arm and the body or subframe to fail, seriously affecting the working efficiency of the suspension system, and may further cause a significant decrease in the vehicle's driving stability; 2. It will directly affect the vehicle's steering response and driving trajectory control, resulting in reduced vehicle handling performance, etc. Therefore, ensuring that the automobile control arm bushing has a good anti-falling design is of great significance for ensuring the normal driving, safety performance and service life of the vehicle. Summary of the invention

[0004] In view of the shortcomings of the prior art, the utility model aims to provide an anti-falling automobile control arm bushing which will not fall off in the axial direction after the bushing body is installed on the control arm body.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: it is composed of a bushing body and a control arm body extending left and right in the length direction, the bushing body is inserted in the control arm body, and an installation groove is arranged in the control arm body, the bushing body includes a first limiting portion, an inserting portion and a second limiting portion, the inserting portion is located in the installation groove, the first limiting portion is located on the left side of the installation groove and is against the control arm body, the second limiting portion is located on the right side of the installation groove and is against the control arm body, and the first limiting portion and the inserting portion are detachably connected.

[0006] The utility model is further configured as follows: the diameter of the second limiting portion is greater than the diameter of the mounting groove, and the second limiting portion is detachably connected to the control arm body.

[0007] The utility model is further configured as follows: the second limiting portion is sleeved on the bushing body and includes a peripheral matching surface, and the matching surface is inclined from left to right and from top to bottom.

[0008] The utility model is further configured as follows: the second limiting portion is provided with a plurality of mounting blocks protruding to the left, the control arm body is provided with mounting slots corresponding to each mounting block, each mounting block is recessed inwardly to provide a limiting slot, each limiting slot is arranged in a ring shape, and the control arm body is provided with a limiting block in each mounting slot.

[0009] The utility model is further configured as follows: the first limiting portion includes a force-applying section, an insertion section and a connecting section, the connecting section is detachably connected to the insertion portion, the force-applying section is located on the left side of the control arm body, the insertion portion is provided with an insertion groove for the insertion section to be inserted, and the diameter of the force-applying section is greater than the diameter of the insertion groove.

[0010] The utility model is further configured as follows: the connection section is provided with external threads in the circumference thereof, and the connection section is threadedly matched with the insertion portion.

[0011] The utility model is further configured as follows: the diameter of the connecting section is larger than the diameter of the insertion section, the control arm body is provided with a connecting groove for inserting the connecting section on the left side of the installation groove, and the diameter of the force applying section is larger than the diameter of the connecting groove.

[0012] By adopting the above technical scheme, during the assembly process: 1. After the insertion part is aligned with the installation slot and inserted, the second limiting part is located on the right side of the installation slot and can be abutted against the control arm body to realize the position determination of the insertion part and the installation slot. At this time, since the first limiting part and the insertion part are detachably connected, the first limiting part is installed from the left side and then connected to the insertion part. At this time, since the first limiting part is located on the left side of the installation slot and abuts against the control arm body, the position determination of the first limiting part on the control arm body is realized. Since the first limiting part and the second limiting part will abut against the control arm at this time, during use, the first limiting part and the second limiting part cannot enter the installation slot, so that the insertion part is stably located in the installation slot, thereby preventing it from being located The bushing body on the control arm body falls off in the axial direction, thereby ensuring a stable connection between the control arm and the frame. Even under extreme road conditions or wear conditions after long-term use, the bushing can be prevented from suddenly detaching, thereby avoiding the risk of loss of control or collision caused by failure of the suspension system, thereby ensuring the normal driving of the car; 2. Since the first limiting portion and the inserting portion are detachably connected, if the bushing body is worn during use, the first limiting portion, the second limiting portion and the inserting portion can be removed from the control arm body and then replaced by separating the first limiting portion from the inserting portion, so that the bushing body can be independently replaced without replacing the entire suspension assembly, which greatly simplifies the maintenance process and reduces maintenance costs and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is an assembly diagram of a specific implementation method of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 for Figure 2 A magnified view of middle;

[0017] Figure 4 for Figure 2 Enlarged view of middle B;

[0018] Figure 5 for Figure 2 Enlarged view of C in the middle.

[0019] In the figure: 1-bushing body, 11-first limiting portion, 111-force applying section, 112-insertion section, 1121-external thread, 113-connecting section, 12-insertion portion, 121-insertion slot, 13-second limiting portion, 131-matching surface, 132-mounting block, 1321-limiting slot, 2-control arm body, 21-mounting slot, 22-mounting slot, 23-limiting block, 24-connecting slot. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-Figure 5As shown, the utility model discloses an anti-falling automobile control arm bushing, which is composed of a bushing body 1 and a control arm body 2 extending left and right in the length direction, wherein the bushing body 1 is inserted into the control arm body 2, and a mounting groove 21 is arranged in the control arm body 2, wherein the bushing body 1 comprises a first limiting portion 11, an inserting portion 12 and a second limiting portion 13, wherein the inserting portion 12 is located in the mounting groove 21, wherein the first limiting portion 11 is located on the left side of the mounting groove 21 and abuts against the control arm body 2, and wherein the second limiting portion 13 is located on the right side of the mounting groove 21 and abuts against the control arm body 2, the first limiting portion 11 and the inserting portion 12 are detachably connected. During the assembly process: 1. After the inserting portion 12 is aligned with the mounting slot 21 and inserted, the second limiting portion 13 is located on the right side of the mounting slot 21 and can be abutted against the control arm body 2 to achieve the position determination of the inserting portion 12 and the mounting slot 21. At this time, since the first limiting portion 11 and the inserting portion 12 are detachably connected, the first limiting portion 11 is inserted from the left side and then connected to the inserting portion 12. At this time, since the first limiting portion 11 is located on the left side of the mounting slot 21 and abutted against the control arm body 2, the position determination of the inserting portion 12 and the mounting slot 21 is achieved. The first limiting portion 11 abuts against the second limiting portion 13, thereby determining the position of the first limiting portion 11 on the control arm body 2. Since the first limiting portion 11 and the second limiting portion 13 abut against the control arm at this time, the first limiting portion 11 and the second limiting portion 13 cannot enter the mounting groove 21 during use, so that the insertion portion 12 is stably located in the mounting groove 21, thereby preventing the bushing body 1 located on the control arm body 2 from falling off in the axial direction, thereby ensuring a stable connection between the control arm and the frame, and preventing the bushing from suddenly falling off even under extreme road conditions or under wear conditions after long-term use, thereby avoiding damage due to 1. The risk of loss of control or collision caused by failure of the suspension system, thereby ensuring the normal driving of the car; 2. Since the first limiting portion 11 and the inserting portion 12 are detachably connected, if the bushing body 1 is worn during use, the first limiting portion 11 and the inserting portion 12 can be separated to realize the removal of the first limiting portion 11, the second limiting portion 13 and the inserting portion 12 from the control arm body 2 and then replaced, so that the bushing body 1 can be independently replaced without replacing the entire suspension assembly, which greatly simplifies the maintenance process and reduces maintenance costs and time.

[0022] Among them, the second limiting portion 13 is fixedly connected to the insertion portion 12 and has a diameter greater than the diameter of the mounting groove 21, and the second limiting portion 13 is detachably connected to the control arm body 2. 1. Since the diameter of the second limiting portion 13 is greater than the diameter of the mounting groove 21, after the insertion portion 12 is inserted into the mounting groove 21, the second limiting portion 13 cannot enter the mounting groove 21, thereby realizing the position determination of the insertion portion 12 and the mounting groove 21; 2. After the position of the bushing body 1 on the control arm body 2 is determined by inserting the first limiting portion 11 into the insertion portion 12, at this time, since the second limiting portion 13 is detachably connected to the control arm body 2, the second limiting portion 13 cannot rotate, and thus the insertion portion 12 cannot rotate after being inserted into the mounting groove 21, thereby ensuring that the bushing body 1 is firmly limited in the radial direction, and further improving the stability of the insertion portion 12 located in the mounting groove 21.

[0023] Preferably, the second limiting portion 13 is sleeved on the bushing body 1 and includes a peripheral mating surface 131, and the mating surface 131 is inclined from left to right and from top to bottom. 1. The inclined design of the mating surface 131 can make the force distribution area wider and reduce stress concentration when the bushing body 1 is subjected to forces from different directions, thereby extending the service life of the bushing body 1, and also helps to reduce the risk of fracture due to excessive stress; 2. Since the second limiting portion 13 is set in a shape that is wide on the left and narrow on the right, the wide surface on the left can increase the contact area with the control arm and is difficult to deform into the mounting groove 21, so that the second limiting portion 13 can stably resist the control arm body 2, and the narrow surface on the right makes it possible for dust to accumulate during use. After falling onto the surface of the second limiting portion 13 due to gravity, the dust can fall downward along the mating surface 131 and will not accumulate in the circumferential direction of the second limiting portion 13.

[0024] The second limiting portion 13 is protruding to the left and is provided with a plurality of mounting blocks 132. The control arm body 2 is provided with mounting slots 22 corresponding to the mounting blocks 132. Each mounting block 132 is recessed inwardly and provided with a limiting slot 1321. Each limiting slot 1321 is arranged in a ring shape. The control arm body 2 is provided with a limiting block 23 in each mounting slot 22. 1. In addition to the basic connection of the installation slot 22, the cooperation of the limit block 23 and the limit slot 1321 plays a secondary limit role, which is equivalent to adding additional safety insurance to the installation of the second limit part 13. Even under extreme working conditions, it can effectively prevent the bushing body 1 from being displaced significantly, thereby improving the safety of vehicle driving. Specifically, in the process of each installation block 132 being installed into the corresponding installation slot 22, the part of each installation block 132 located on the left side of the corresponding limit slot 1321 needs to be tilted and forcibly passed over the corresponding limit block 23 to achieve the cooperation between the limit block 23 and the limit slot 1321. In the absence of external force, each limit block 23 is difficult to separate from the corresponding limit slot 1321, thereby improving the connection stability between the second limit part 13 and the control arm body 2, and effectively preventing the bushing body 1 from loosening or falling off due to vibration or impact during vehicle driving; 2. The annular arrangement of the recessed limiting slot 1321 and the matching limiting insert block 23 on the second limiting portion 13 can ensure that the bushing body 1 can be accurately aligned during installation, achieving precise radial and axial positioning, thereby ensuring the accuracy of the installation position.

[0025] In addition, the first limiting portion 11 includes a force-applying section 111, an insertion section 112 and a connecting section 113, the connecting section 113 and the insertion section 12 are detachably connected, the force-applying section 111 is located on the left side of the control arm body 2, and the detachable connection design of the connecting section 113 and the insertion section 12 makes it more convenient to assemble or replace the control arm bushing, without replacing the entire control arm or performing complicated processing, thereby reducing maintenance costs and time; 2. Since the force-applying section 11 is located on the left side of the control arm body 2 and its diameter is larger than The diameter of the mounting groove 21, therefore, after the insertion section 112 is installed into the insertion portion 12, the force-applying section 11 will abut against the control arm body 2, ensuring that the insertion section 112 and the connecting section 113 can effectively prevent the force-applying section 111 from moving excessively to the right after installation, thereby maintaining the correct geometric relationship of the suspension system and ensuring the driving stability and handling of the vehicle; 3. At the same time, the design adds a sufficient axial limit at the left end of the bushing body 1 located inside the control arm body 2 to prevent the bushing body 1 from falling out to the left due to force.

[0026] Preferably, the insertion section 112 is provided with an external thread 1121 in the circumferential direction, and the insertion section 112 is threadedly matched with the insertion part 12. Therefore, the threaded match has the following advantages: 1. By rotating the first limiting part 11, the insertion section 112 can be separated from the insertion part 12 to achieve the separation of the first limiting part 11 from the control arm body 2, and then the insertion part 12 can be taken out to achieve the separation of the bushing body 1, that is, it can be easily disassembled, repaired, replaced or reorganized without destroying the overall structure, and the components can still be restored and used many times after disassembly; 2. The threaded connection can provide a higher static and dynamic load bearing capacity, especially under the condition of sufficient pre-tightening, the threaded match can form a firm and stable connection to resist different forms of force such as tension, compression, and shear; 3. The threaded connection has a simple structure, and the processing and installation costs are relatively low, which is suitable for large-scale industrial production. In addition, it can maintain stable performance in various environments.

[0027] Among them, the diameter of the connecting section 113 is larger than the diameter of the insertion section 112, and the control arm body 2 is provided with a connecting groove 24 for the connecting section 113 to be inserted on the left side of the installation groove 21, and the diameter of the force section 111 is larger than the diameter of the connecting groove 24. Since the diameter of the connecting section 113 is larger than the diameter of the insertion section 112, i.e., the installation groove 21, and the diameter of the force section 111 is larger than the diameter of the connecting groove 24, the force section 111 cannot enter the connecting groove 24 to the right, and the connecting section 113 cannot enter the insertion portion 12 to the right to realize the position determination of each part of the first limiting portion 11. At the same time, when a torque is applied to the force section 111 to separate the insertion section 112 from the insertion portion 12, at this time, since the force section 111 cannot enter the connecting groove 24 to the right, the force section 111 in the rotating state can only move to the left to remove the insertion section 112 from the insertion portion 12, but cannot limit the assembly and disassembly direction and path of the first limiting portion 11 to the right.

[0028] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An anti-dropping automobile control arm bushing, which is composed of a bushing body extending left and right in the length direction and a control arm body, wherein the bushing body is inserted into the control arm body, and is characterized in that: A mounting groove is provided in the control arm body, and the bushing body includes a first limiting portion, an inserting portion and a second limiting portion. The inserting portion is located in the mounting groove, the first limiting portion is located on the left side of the mounting groove and is against the control arm body, the second limiting portion is located on the right side of the mounting groove and is against the control arm body, and the first limiting portion and the inserting portion are detachably connected.

2. The anti-drop-off automobile control arm bushing according to claim 1, characterized in that: The diameter of the second limiting portion is greater than the diameter of the mounting groove, and the second limiting portion is detachably connected to the control arm body.

3. The anti-fall-off automobile control arm bushing according to claim 2, characterized in that: The second limiting portion is sleeved on the bushing body and includes a peripheral matching surface, and the matching surface is inclined from left to right and from top to bottom.

4. The anti-fall-off automobile control arm bushing according to claim 2, characterized in that: The second limiting portion is provided with a plurality of mounting blocks protruding to the left, and the control arm body is provided with mounting slots corresponding to each mounting block. Each mounting block is recessed inwardly to provide a limiting slot, and each limiting slot is arranged in a ring shape. The control arm body is provided with a limiting block in each mounting slot.

5. The anti-drop-off automobile control arm bushing according to claim 1, characterized in that: The first limiting portion includes a force-applying section, an insertion section and a connecting section, the connecting section is detachably connected to the insertion section, the force-applying section is located on the left side of the control arm body, the insertion section is provided with an insertion groove for the insertion section to be inserted, and the diameter of the force-applying section is larger than the diameter of the insertion groove.

6. The anti-drop-off automobile control arm bushing according to claim 5, characterized in that: The connection section is provided with external threads in the circumference, and the connection section is threadedly matched with the insertion portion.

7. The anti-drop-off automobile control arm bushing according to claim 5, characterized in that: The diameter of the connecting section is larger than the diameter of the inserting section. The control arm body is provided with a connecting groove for inserting the connecting section on the left side of the mounting groove. The diameter of the force applying section is larger than the diameter of the connecting groove.

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