Fastening tool for lower swing arm of automobile

By designing a car lower control arm fastening tool, and utilizing a combination structure of insert rod, ball sleeve and V-shaped spring, the problem of abnormal noise caused by loose connection between ball pin and control arm body was solved, achieving higher connection firmness and stability.

CN223750588UActive Publication Date: 2026-01-02SHANGHAI QIANG BIAO CAR FASTENERS MFG CO LTD
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Patent Information

Application Number
CN202520476584.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-01-02
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

The ball joint of the lower control arm in the existing car is loosely connected to the control arm body, causing abnormal noise.

Method used

A car lower control arm fastening tool was designed. Through the combination structure of a plug rod, ball sleeve, V-shaped spring and clamping plate, the connection between the ball pin and the control arm body is enhanced. The V-shaped spring pushes the clamping plate to rotate, and the clamp head is embedded in the clamping groove, which increases the connection between the plug rod and the control arm body.

Benefits of technology

It effectively reduces abnormal noise between the ball pin and the swing arm body, improves the connection's firmness, and ensures the stability of the vehicle during driving.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile accessories, and discloses an automobile lower swing arm fastening tool which comprises a swing arm body, a front lining is movably installed at one end of the side face of the swing arm body, a rear lining is movably installed at the right end of the swing arm body, and an inserting rod is movably installed at the left end of the swing arm body through a bolt and a nut. A ball sleeve is fixedly installed on the side face of the inserting rod, and a ball head rod is movably installed in the ball sleeve. According to the automobile lower swing arm fastening tool, the ball sleeve is inserted into the left end of the swing arm body through the inserting rod, meanwhile, the V-shaped spring pushes the clamping plate to rotate, the clamping head on the surface of the clamping plate is embedded into the clamping groove, it is guaranteed that the inserting rod and the swing arm body are connected and fixed, and then the bolt and the nut are inserted in a penetrating mode to further improve the connectivity of the inserting rod and the swing arm body; therefore, the connection firmness of the ball sleeve and the swing arm body is ensured, and the formation of abnormal sound is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile accessories, in particular to a lower swing arm fastening tool of automobile. BACKGROUND

[0002] The swing arm is generally hinged with the steering knuckle through a ball pin on the outer side and connected with the vehicle body or frame through a bush on the inner side, and the swing arm assembly is generally composed of a ball pin assembly, a swing arm body and a bush. The ball pin assembly generally comprises a ball pin body, a dust cover and a ball seat. The connection between the swing arm body of the front lower swing arm and the steering knuckle is realized through a bolt, and when the torque of the bolt decays, the connection between the ball pin and the swing arm body is prone to loosening and even a gap occurs, which may cause abnormal noise between the ball pin and the swing arm body during driving of the automobile. SUMMARY

[0003] (I) Technical problems solved

[0004] In view of the deficiencies in the prior art, the utility model provides a lower swing arm fastening tool of automobile, which has the advantages of high connection firmness and solves the above problems.

[0005] (II) Technical solutions

[0006] To achieve the above-mentioned high connection firmness, the utility model provides the following technical solutions: a lower swing arm fastening tool of automobile, comprising a swing arm body, a front bush movably mounted at one end of the side surface of the swing arm body, a rear bush movably mounted at the right end of the swing arm body, a plug rod movably mounted at the left end of the swing arm body through a bolt and a nut, a ball sleeve fixedly mounted at the side surface of the plug rod, and a ball head rod movably mounted in the ball sleeve.

[0007] Preferably, a strip-shaped groove and a strip-shaped hole are formed in the inner wall of the swing arm body, and the strip-shaped groove and the strip-shaped hole are in communication with each other.

[0008] Preferably, a hinge shaft is fixedly mounted on the inner wall of the strip-shaped groove, a shaft sleeve is movably mounted on the outer side of the hinge shaft, a clamping plate is fixedly mounted on the side surface of the shaft sleeve, a clamping head is fixedly mounted at the tail end of the clamping plate, a vertical plate is fixedly mounted on the side surface of the clamping head, and a through hole is formed in the surface of the vertical plate.

[0009] Preferably, a groove is formed in the surface of the clamping plate, one end of a V-shaped spring is embedded in the inner wall of the groove, the other end of the V-shaped spring abuts against the inner wall of the strip-shaped groove, and a clamping groove corresponding to the clamping head is formed in the surface of the plug rod.

[0010] Preferably, the vertical plate penetrates the strip-shaped hole upward and extends to the outer side of the swing arm body.

[0011] Preferably, the clamping plate, the clamping head, the vertical plate and the V-shaped spring are symmetrically distributed above and below the horizontal line of the plug rod.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, the automobile lower swing arm fastening tool has the following beneficial effects:

[0014] The automobile lower swing arm fastening tool, the ball sleeve is inserted into the left end of the swing arm body through the insertion rod, and the V-shaped spring pushes the clamping plate to rotate, the clamping head on the surface of the clamping plate is embedded into the clamping groove, so that the connection between the insertion rod and the swing arm body is fixed, and then the bolt and the nut are inserted to further increase the connectivity between the insertion rod and the swing arm body, so that the connection between the ball sleeve and the swing arm body is firm, and the formation of abnormal sound is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a three-dimensional structure schematic diagram of the utility model;

[0016] Fig. 2 It is a structure schematic diagram of the swing arm body and the insertion rod of the utility model;

[0017] Fig. 3 It is a sectional structure schematic diagram of the swing arm body and the insertion rod of the utility model;

[0018] Fig. 4 It is a structure schematic diagram of the swing arm body and the insertion rod after being cut of the utility model;

[0019] Fig. 5 It is a structure schematic diagram of the clamping plate, the V-shaped spring and the insertion rod of the utility model;

[0020] Fig. 6 It is a structure schematic diagram of the clamping plate, the V-shaped spring and the hinge shaft of the utility model.

[0021] In the drawing: 1, swing arm body; 2, front bushing; 3, rear bushing; 4, bolt and nut; 5, insertion rod; 6, ball sleeve; 7, ball head rod; 8, strip-shaped groove; 9, strip-shaped hole; 10, hinge shaft; 11, shaft sleeve; 12, clamping plate; 13, clamping head; 14, vertical plate; 15, through hole; 16, recess; 17, V-shaped spring; 18, clamping groove. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figs. 1-2The utility model provides a kind of automobile lower swing arm fastening tool, including swing arm body 1, front bushing 2 is movably installed in swing arm body 1 side end, rear bushing 3 is movably installed in the right end of swing arm body 1, plug rod 5 is movably installed in the left end of swing arm body 1 by bolt and nut 4, ball sleeve 6 is fixedly installed in the side of plug rod 5, ball head rod 7 is movably installed in the inside of ball sleeve 6.

[0024] Please refer to Figs. 3-4 The inner wall of swing arm body 1 is provided with a strip-shaped groove 8 and a strip-shaped hole 9, the strip-shaped groove 8 and the strip-shaped hole 9 are communicated with each other, and the two form an L shape as a whole, facilitating the hiding of the clamping plate 12.

[0025] Please refer to Figs. 5-6 The inner wall of the strip-shaped groove 8 is fixedly provided with a hinge shaft 10, the outer side of the hinge shaft 10 is movably provided with a shaft sleeve 11, the side of the shaft sleeve 11 is fixedly provided with a clamping plate 12, the tail end of the clamping plate 12 is fixedly provided with a clamping head 13, the side of the clamping head 13 is fixedly provided with a vertical plate 14, the vertical plate 14 penetrates the strip-shaped hole 9 upward and extends to the outside of the swing arm body 1, and the surface of the vertical plate 14 is provided with a through hole 15.

[0026] Please refer to Figs. 5-6 The surface of the clamping plate 12 is provided with a recess 16, one end of a V-shaped spring 17 is embedded in the inner wall of the recess 16, the other end of the V-shaped spring 17 abuts against the inner wall of the strip-shaped groove 8, the clamping plate 12, the clamping head 13, the vertical plate 14 and the V-shaped spring 17 are symmetrically distributed upward and downward with the horizontal line of the plug rod 5 as the axis, the surface of the plug rod 5 is provided with a clamping groove 18 corresponding to the clamping head 13, the V-shaped spring 17 pushes the clamping head 13 to insert into the clamping groove 18, thereby increasing the connection firmness of the plug rod 5 and the swing arm body 1.

[0027] Working principle: in use, the ball sleeve 6 is inserted into the left end of the swing arm body 1 through the plug rod 5, at the same time, the V-shaped spring 17 pushes the clamping plate 12 to rotate, the clamping head 13 on the surface of the clamping plate 12 is embedded in the clamping groove 18, thereby ensuring the connection and fixation between the plug rod 5 and the swing arm body 1, then the bolt and the nut 4 are further inserted to increase the connection between the plug rod 5 and the swing arm body 1, thereby ensuring the connection firmness of the ball sleeve 6 and the swing arm body 1, and reducing the formation of abnormal sound.

[0028] When disassembling, the bolt and the nut 4 are disassembled in advance, the plug rod 5 and the swing arm body 1 are first unlocked in the first step of fastening; then a tool is inserted into the through hole 15 of the vertical plate 14 and pulls the vertical plate 14 outward, then the clamping plate 12 rotates around the hinge shaft 10, the V-shaped spring 17 is compressed and hidden in the recess 16, then the clamping head 13 leaves the clamping groove 18, and then the plug rod 5 is pulled out from one end of the swing arm body 1, thereby realizing the complete separation of the ball sleeve 6 and the swing arm body 1.

[0029] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lower swing arm fastening tool for a vehicle, comprising a swing arm body (1), a front bushing (2) movably mounted at one side end of the swing arm body (1), and a rear bushing (3) movably mounted at a right end of the swing arm body (1), characterized in that: The left end of the swing arm body (1) is movably installed with an inserting rod (5) through a bolt and a nut (4), the side surface of the inserting rod (5) is fixedly installed with a ball sleeve (6), and the inside of the ball sleeve (6) is movably installed with a ball head rod (7).

2. The lower swing arm fastening tool of claim 1, wherein: The inner wall of the swing arm body (1) is provided with a strip-shaped groove (8) and a strip-shaped hole (9), and the strip-shaped groove (8) and the strip-shaped hole (9) are in communication with each other.

3. The tool according to claim 2, wherein: The inner wall of the strip-shaped groove (8) is fixedly installed with a hinge shaft (10), the outer side of the hinge shaft (10) is movably installed with a shaft sleeve (11), the side surface of the shaft sleeve (11) is fixedly installed with a clamping plate (12), the tail end of the clamping plate (12) is fixedly installed with a clamping head (13), the side surface of the clamping head (13) is fixedly installed with a vertical plate (14), and the surface of the vertical plate (14) is provided with a through hole (15).

4. The tool according to claim 3, wherein: The surface of the clamping plate (12) is provided with a groove (16), one end of a V-shaped spring (17) is embedded on the inner wall of the groove (16), the other end of the V-shaped spring (17) is abutted against the inner wall of the strip-shaped groove (8), and the surface of the inserting rod (5) is provided with a clamping groove (18) corresponding to the clamping head (13).

5. The tool of claim 3 wherein: The vertical plate (14) penetrates the strip-shaped hole (9) upward and extends to the outside of the swing arm body (1).

6. The lower swing arm fastening tool of claim 4, wherein: The clamping plate (12), the clamping head (13), the vertical plate (14) and the V-shaped spring (17) are symmetrically distributed upward and downward with the horizontal line of the inserting rod (5) as the axis.