A vehicle stabilizer bar assembly

Abstract

The application relates to an automobile stabilizer bar assembly and belongs to the technical field of automobile accessories. The stabilizer bar assembly comprises a steering pull rod, a ball head seat and a ball head pin. The steering pull rod is provided with connecting seats for mounting the ball head seat at two ends. The connecting seats are provided with connecting through holes penetrating through two side end faces. The ball head seat is inserted into the connecting through holes in an interference mode. The connecting seats are provided with clamping tooth grooves at intervals at the openings of the connecting through holes. The application has the effect of reducing the probability of circumferential movement of the ball head seat in the connecting seat.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and in particular to an automotive stabilizer bar assembly. Background Technology

[0002] As an auxiliary elastic component of the car's suspension system, the stabilizer bar's function is to suppress excessive lateral roll of the vehicle body during cornering, thereby effectively avoiding the risk of lateral rollover and improving ride comfort.

[0003] A typical stabilizer bar structure usually consists of a ball joint, a ball joint seat, and a steering tie rod. Both ends of the steering tie rod are fitted with connectors, and the ball joint is fixedly mounted on the connectors. The ball joint is assembled inside the ball joint seat to achieve the connection. To reduce the overall weight of the stabilizer bar and adapt to the trend of lightweight automotive parts, the ball joint seat is now made of injection-molded plastic and is inserted into the connector. The outer wall of the ball joint seat has a retaining ring groove that mates with the connector. The outer wall of the retaining ring groove presses against the inner wall of the connector to achieve circumferential fixation of the ball joint seat. However, the ball joint seat, made of injection-molded material, experiences significant wear after prolonged use, resulting in weaker circumferential restraint on the connector and a tendency for circumferential movement. Utility Model Content

[0004] To reduce the probability of circumferential movement of the ball joint in the connecting seat, this application provides an automotive stabilizer bar.

[0005] The automotive stabilizer bar assembly provided in this application adopts the following technical solution: A vehicle stabilizer bar assembly includes a steering tie rod, a ball joint, and a ball pin. The steering tie rod has connecting seats at both ends for mounting the ball joint. The connecting seats have connecting through holes extending through both end faces. The ball joint is interference-fitted into the connecting through holes. The connecting seats have locking grooves spaced apart at the openings of the connecting through holes.

[0006] By adopting the above technical solution, the connecting seats at both ends of the steering tie rod are interference-fitted with the ball joint seat through the connecting through holes penetrating both end faces, which can realize the installation of the ball joint seat. The intermittently arranged snap-fit ​​grooves at the opening of the connecting seat can enhance the circumferential fixation of the ball joint seat in the connecting seat and ensure the circumferential stability of the ball joint seat.

[0007] Optionally, the two ends of the connecting through hole are provided with inclined annular surfaces.

[0008] By adopting the above technical solution, inclined annular surfaces are set at both ends of the connecting through hole. The inclined annular surfaces facilitate the insertion of the ball head seat into the connecting through hole of the connector seat, making the installation smoother.

[0009] Optionally, the snap-fit ​​groove is provided on the inclined annular surface.

[0010] By adopting the above technical solution, the snap-fit ​​groove is set on the inclined annular surface. When the ball head is interference-inserted into the connecting through hole, the guiding effect of the inclined annular surface can make the ball head fit with the snap-fit ​​groove more smoothly, which enhances the connection stability between the ball head and the connecting seat and further prevents the ball head from moving around in the circumferential direction.

[0011] Optionally, the cross-section of the snap-fit ​​groove is V-shaped, and the tips of the two sets of snap-fit ​​grooves are arranged in a direction that approaches each other.

[0012] By adopting the above technical solution, the V-shaped groove is essentially an inclined plane or wedge. When the ball joint is subjected to torsional force (circumferential force), the inclined plane of the metal groove will attempt to "wedge" the plastic deeper; and the V-shape is symmetrical, which means that it can provide essentially equal torsional resistance in both clockwise and counterclockwise rotational directions.

[0013] Optionally, the connector is provided with twelve sets of snap-fit ​​grooves, which are spaced circumferentially along the axis of the connecting through hole.

[0014] By adopting the above technical solution, the twelve sets of circumferentially spaced locking grooves can better cooperate with the ball joint, enhance the circumferential fixing effect between the ball joint and the connecting seat, effectively reduce the circumferential movement of the ball joint, and improve the overall stability of the vehicle stabilizer bar assembly.

[0015] Optionally, the outer wall of the ball head seat is provided with locking protrusions at intervals that engage with the locking tooth groove.

[0016] By adopting the above technical solution, the snap-fit ​​protrusion on the outer wall of the ball joint engages with the snap-fit ​​groove of the connecting seat, which can further enhance the circumferential limiting of the ball joint within the connecting seat, prevent the ball joint from circumferentially moving, and improve the stability of the vehicle stabilizer bar assembly.

[0017] Optionally, the side wall of the connecting seat is provided with a plug groove for inserting the steering tie rod, and the connecting seat is provided with a clamping component that abuts against the ball joint in the plug groove.

[0018] By adopting the above technical solution, the connection stability between the ball head and the connecting seat is enhanced by using the clamping component to abut against the ball head, further reducing the possibility of circumferential movement of the ball head.

[0019] Optionally, the clamping assembly includes a clamping column slidably mounted on the connecting seat, a clamping spring connected to the clamping column, and a plunger component disposed on the clamping column. The two ends of the clamping spring are respectively fixed to the inner wall of the insertion groove and the end face of the clamping column. The inner wall of the insertion groove is also provided with a locking groove that locks into the plunger component.

[0020] By adopting the above technical solution, the clamping component can be set so that the clamping column abuts against the ball head seat under the action of the clamping spring, which enhances the tightness of the connection between the ball head seat and the connecting seat. Furthermore, the locking fit between the plunger and the locking groove can further fix the position of the clamping column, ensuring a stable clamping effect on the ball head seat and effectively preventing circumferential movement of the ball head seat.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The intermittently spaced locking grooves at the opening of the connector enhance the circumferential fixation of the ball joint within the connector, ensuring the circumferential stability of the ball joint; 2. The V-groove is essentially an inclined plane or wedge. When the ball joint is subjected to torsional force (circumferential force), the inclined plane of the metal groove attempts to "wedge" the plastic deeper; 3. The use of a clamping component to abut against the ball head enhances the connection stability between the ball head and the connecting seat, further reducing the possibility of circumferential movement of the ball head. Attached Figure Description

[0022] Figure 1 This is an exploded view of an automotive stabilizer bar according to an embodiment of this application.

[0023] Figure 2 This is a cross-sectional schematic diagram of the connector in an embodiment of this application.

[0024] Figure 3 This is a schematic diagram of the end face of the connector in an embodiment of this application.

[0025] Figure 4 This is a cross-sectional schematic diagram of the ball joint in an embodiment of this application.

[0026] Figure 5 This is a schematic diagram of the structure of the clamping component in an embodiment of this application.

[0027] Explanation of reference numerals in the attached drawings: 1. Steering tie rod; 11. Insertion end; 2. Ball joint seat; 21. Snap-fit ​​protrusion; 3. Ball pin; 4. Connecting seat; 41. Connecting through hole; 42. Inclined annular surface; 43. Snap-fit ​​groove; 44. Insertion groove; 441. Locking groove; 5. Clamping assembly; 51. Clamping post; 511. Extension; 52. Clamping spring; 53. Plunger. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0029] This application discloses an automotive stabilizer bar assembly.

[0030] Reference Figure 1A vehicle stabilizer bar assembly includes a steering tie rod 1, a ball joint 2, and a ball pin 3. The steering tie rod 1 has connecting seats 4 at both ends for mounting the ball joint 2. The connecting seats 4 and the steering tie rod 1 are welded and fixed.

[0031] Reference Figure 2 and Figure 3 The connecting seat 4 is a ring-shaped metal part with a connecting through hole 41 extending through both end faces. The ball head seat 2 is a one-piece injection molded part, and its overall shape is a column with one end open. The ball head seat 2 is interference-fitted into the connecting through hole 41. After the ball head seat 2 is inserted into the connecting seat 4, the outer wall of the ball head seat 2 expands and abuts against the inner wall of the connecting through hole 41.

[0032] The connecting seat 4 has inclined annular surfaces 42 at both ends of the connecting through hole 41. The inclined annular surfaces 42 are inclined inward along the central axis of the connecting seat 4 to improve the installation efficiency of the ball head seat 2.

[0033] To reduce the probability of circumferential rotation of the ball joint 2 at the connecting seat 4, the connecting seat 4 is provided with multiple sets of engaging grooves 43 spaced circumferentially on the inclined annular surface 42. The cross-section of the engaging grooves 43 is V-shaped, and the pointed grooves of the engaging grooves 43 on the two sets of inclined annular surfaces 42 are arranged in a direction that approaches each other. In this embodiment, the connecting seat 4 is provided with twelve sets of engaging grooves 43 on each set of inclined annular surfaces 42, and the twelve sets of engaging grooves 43 are evenly spaced circumferentially along the axis of the connecting through hole 41.

[0034] Reference Figure 2 and Figure 4 In other embodiments, the outer wall of the ball joint 2 is also integrally provided with a snap-fit ​​protrusion 21, and the snap-fit ​​protrusion 21 and the snap-fit ​​groove 43 are arranged correspondingly. The snap-fit ​​protrusion 21 and the ball joint 2 are integrally injection molded, and the number of snap-fit ​​protrusions 21 can be set to one or more. Through the cooperation of the snap-fit ​​protrusion 21 and the snap-fit ​​groove 43, the circumferential limitation of the ball joint 2 in the connecting seat 4 is further enhanced, the probability of circumferential movement of the ball joint 2 is reduced, and the stability of the vehicle stabilizer bar assembly is improved.

[0035] Reference Figure 5 In other embodiments, the side wall of the connecting seat 4 is also provided with a insertion groove 44 for the end of the steering tie rod 1 to be inserted, and the insertion seat is also equipped with a clamping component 5 for abutting against the outer wall of the ball joint seat 2 in the insertion groove 44. The end of the steering tie rod 1 has an insertion end 11 that cooperates with the insertion groove 44. After the insertion end 11 and the insertion groove 44 are inserted and cooperated to achieve the initial positioning of the steering tie rod 1, the steering tie rod 1 and the connecting seat 4 are fixed by welding equipment.

[0036] The clamping assembly 5 includes a clamping post 51, a clamping spring 52, and a plunger 53. The clamping post 51 is slidably arranged in the insertion groove 44, which is arranged radially along the connecting seat 4 and communicates with the connecting through hole 41. An extension 511 is integrally provided on the clamping post 51 for fixing one end of the clamping spring 52, and the other end of the clamping spring 52 is fixed to the inner wall of the insertion groove 44. The clamping spring 52 ensures that the end face of the clamping post 51 is initially located within the insertion groove 44.

[0037] The plunger component 53 includes a plunger housing, a plunger spring, and a plunger ball head. One end of the plunger spring is fixed to the inner bottom wall of the plunger housing, and the other end is fixed to the plunger ball head. The plunger component 53 is integrally disposed on the side of the extension 511 away from the connecting through hole 41, and the deformation direction of the plunger spring is perpendicular to the length direction of the insertion groove 44.

[0038] The inner wall of the insertion groove 44 is provided with two sets of locking grooves 441 at intervals along its length. When the plunger 53 is engaged with one set of locking grooves 441, the pressing end face of the pressing column 51 is located inside the insertion groove 44. When the plunger 53 is engaged with the other set of locking grooves 441, the pressing end face of the pressing column 51 protrudes from the opening of the insertion groove 44, so as to press against the outer wall of the ball head seat 2.

[0039] The implementation principle of a car stabilizer bar assembly in this application embodiment is as follows: the ball joint seat 2 is inserted into the connecting seat 4 with an interference fit, and then the plug end 11 of the steering tie rod 1 is inserted into the plug groove 44, so that the plunger ball of the plunger part 53 moves from one set of locking grooves 441 to another set of locking grooves 441, thereby realizing the further circumferential limiting of the ball joint seat 2 by the pressing column 51.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A vehicle stabilizer bar assembly, comprising a steering tie rod (1), a ball joint (2), and a ball pin (3), wherein the steering tie rod (1) has connecting seats (4) at both ends for mounting the ball joint (2), characterized in that, The connecting seat (4) has a connecting through hole (41) that extends through both end faces. The ball head seat (2) is inserted into the connecting through hole (41) with an interference fit. The connecting seat (4) has a locking tooth groove (43) spaced apart at the opening of the connecting through hole (41).

2. The automotive stabilizer bar assembly according to claim 1, characterized in that, The two ends of the connecting through hole (41) are provided with inclined annular surfaces (42).

3. The automotive stabilizer bar assembly according to claim 2, characterized in that, The snap-fit ​​groove (43) is provided on the inclined annular surface (42).

4. The automotive stabilizer bar assembly according to claim 1, characterized in that, The cross-section of the snap-fit ​​groove (43) is V-shaped, and the pointed grooves of the two sets of snap-fit ​​grooves (43) are arranged in a direction that approaches each other.

5. The automotive stabilizer bar assembly according to claim 1, characterized in that, The connecting seat (4) is provided with twelve sets of snap-fit ​​grooves (43), and the twelve sets of snap-fit ​​grooves (43) are circumferentially spaced along the axis of the connecting through hole (41).

6. The automotive stabilizer bar assembly according to claim 1, characterized in that, The outer wall of the ball head seat (2) is provided with snap-fit ​​protrusions (21) that engage with the snap-fit ​​groove (43).

7. The automotive stabilizer bar assembly according to claim 1, characterized in that, The side wall of the connecting seat (4) is provided with a plug groove (44) for the steering tie rod (1) to be inserted, and the connecting seat (4) is provided with a pressing component (5) for abutting the ball head seat (2) in the plug groove (44).

8. The automotive stabilizer bar assembly according to claim 7, characterized in that, The clamping assembly (5) includes a clamping column (51) slidably mounted on the connecting seat (4), a clamping spring (52) connected to the clamping column (51), and a plunger (53) disposed on the clamping column (51). The two ends of the clamping spring (52) are respectively fixed to the inner wall of the insertion groove (44) and the end face of the clamping column (51). The inner wall of the insertion groove (44) is also provided with a locking groove (441) that locks into the plunger (53).

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