Adjustable coupling rod

Abstract

The utility model discloses an adjustable coupling rod which comprises a coupling rod body, a first ball seat, a second ball seat, a first ball pin and a second ball pin. The first ball seat and the second ball seat are each of a hollow structure with one end open, and the outer side wall of the first ball seat and the outer side wall of the second ball seat are connected with the two ends of the coupling rod body respectively. The first ball head pin is a detachable ball head pin, a first ball head part of the first ball head pin is rotationally connected into the first ball seat, and the specifications of first threaded rods in a plurality of first pin parts of the first ball head pin are matched with the specifications of the connecting positions of stabilizer bars in different vehicle types; the second ball pin is a detachable ball pin, a second ball of the second ball pin is rotationally connected into the second ball seat, and the specifications of second threaded rods in a plurality of second pin parts of the second ball pin are matched with the specifications of the joints of shock absorbers in different vehicle types respectively. The coupling rod is beneficial to shortening the research and development period of the chassis and reducing the research and development cost of the chassis.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive parts, and particularly to an adjustable coupling rod. Background Art

[0002] The coupling rod is a key component connecting the shock absorber and the end of the stabilizer bar in the suspension system. One end of the coupling rod is connected to the shock absorber, and the other end is connected to the lateral stabilizer bar. The middle part of the lateral stabilizer bar is connected to the subframe, thus forming a suspension system of shock absorber - coupling rod - lateral stabilizer bar - subframe. When the vehicle is driving on a curved road condition, due to the action of centrifugal force, the vehicle rolls, or when the left and right wheels bounce inconsistently due to uneven road surface, the coupling rod controls the torsion of the lateral stabilizer bar to generate a reaction force, effectively reducing the roll of the vehicle body to control the vehicle body attitude, thereby improving the overall vehicle safety, comfort and handling stability. The connection between the coupling rod and the shock absorber and the stabilizer bar should maintain sufficient frictional torque to ensure its connection strength. Since the coupling rod has to bear the impact forces in all directions at the connection, if loosening or fracture occurs, the entire suspension system will fail. Therefore, the functional role and strength requirements of the coupling rod are important guarantees for vehicle driving safety.

[0003] In existing vehicles, a fixed coupling rod is generally used, that is, the length, part specifications and direction of the coupling rod are not adjustable. However, due to different design input parameters, layouts and hard points of different vehicles, the coupling rods vary greatly, specifically reflected in different lengths, installation angles, connection directions, and connection standard parts such as connection bolts and nuts of the coupling rod. Therefore, for the chassis development of different vehicle models, different coupling rods need to be matched, and the production of coupling rods involves mold opening, resulting in a long chassis development cycle and high R & D costs. Summary of the Utility Model

[0004] To solve at least one aspect of the above problems, the present utility model provides an adjustable coupling rod, comprising a coupling rod body, a first ball seat, a second ball seat, a first ball head pin and a second ball head pin; both the first ball seat and the second ball seat are structures with a hollow interior and an open end, and the outer side walls of the first ball seat and the second ball seat are respectively connected to both ends of the coupling rod body; the first ball head pin comprises a first ball head part and a plurality of first pin parts; the first ball head part comprises a first ball head and a first connection seat fixedly connected, the first ball head matches the hollow structure of the first ball seat, and the first ball head is rotatably connected within the hollow structure of the first ball seat; the first connection seat penetrates through the open structure of the first ball seat; the first pin part comprises a first connecting rod and a first threaded rod, and the specifications of the first threaded rods of different first pin parts respectively match the specifications at the connection points of the stabilizer bar in different vehicle models, and the end of the first threaded rod is fixedly connected to the end of the first connecting rod; each first connecting rod is detachably connected to the first connection seat, and a first nut is threadedly connected to each first threaded rod; the second ball head pin comprises a second ball head part and a plurality of second pin parts; the second ball head part comprises a second ball head and a second connection seat fixedly connected, the second ball head matches the hollow structure of the second ball seat, and the second ball head is rotatably connected within the hollow structure of the first ball seat; the second connection seat penetrates through the open structure of the second ball seat; the second pin part comprises a second connecting rod and a second threaded rod, and the specifications of the second threaded rods of different second pin parts respectively match the specifications at the connection points of the shock absorber in different vehicle models, and the end of the second threaded rod is fixedly connected to the end of the second connecting rod; each second connecting rod is detachably connected to the second connection seat; a second nut is threadedly connected to each second threaded rod.

[0005] For different vehicle models, there are different possibilities for the stabilizer bar and the shock absorber, resulting in different specifications for the connection standard parts used at the connection points between the stabilizer bar and the end of the coupling rod and between the shock absorber and the end of the coupling rod. Through the above technical solution, the ball head pins at both ends of the coupling rod for connecting its ends to the stabilizer bar and the shock absorber are designed as detachable ball head pins. During the chassis development process, select a first pin part that matches the connection point of the stabilizer bar in this chassis and a second pin part that matches the connection point of the shock absorber in this chassis, and respectively connect them to the first ball head part and the second ball head part to assemble a coupling rod that matches this chassis; when changing to the research and development of a new vehicle model, disassemble the first pin part and the second pin part, and replace them with the first pin part and the second pin part that match the vehicle model being developed and install them. There is no need to re - produce the coupling rod, which helps to shorten the development cycle of the chassis and reduce the R & D cost of the chassis.

[0006] Preferably, a first connecting plate is fixedly connected between the first connecting rod and the first threaded rod. The first connecting plate is perpendicular to both the first connecting rod and the first threaded rod, and the size of the first connecting plate is larger than the diameter of the first threaded rod. A second connecting plate is fixedly connected between the second connecting rod and the second threaded rod. The second connecting plate is perpendicular to both the second connecting rod and the second threaded rod, and the size of the second connecting plate is larger than the diameter of the second threaded rod. Through the above technical solution, the first connecting plate and the second connecting plate with larger sizes are respectively arranged on the first pin portion and the second pin portion, so that when the first pin portion is connected to the end of the stabilizer bar and the second pin portion is connected to the end of the shock absorber, the stabilizer bar abuts against the first connecting plate and the shock absorber abuts against the second connecting plate, which helps to increase the contact area to increase the tightening torque.

[0007] Preferably, both the first connecting plate and the second connecting plate are circular plates, and the diameter ranges of the first connecting plate and the second connecting plate are both 30 - 50 mm.

[0008] Preferably, a first threaded hole is provided at one end of the first connecting seat away from the first ball head. Threads are provided on the outer surface of each first connecting rod. Each first connecting rod is inserted into the first threaded hole and is threadedly connected to the first threaded hole. A second threaded hole is provided at one end of the second connecting seat away from the second ball head. Threads are provided on the outer surface of each second connecting rod. Each second connecting rod is inserted into the second threaded hole and is threadedly connected to the second threaded hole, disclosing a detachable connection method between the pin portion and the ball head portion in a detachable ball head pin.

[0009] Preferably, the specifications of the plurality of first threaded rods and the plurality of second threaded rods are M12x1.5, M14x1.5, and M10x1.5 respectively.

[0010] Preferably, the diameters of both the first ball head and the second ball head are greater than 21 mm.

[0011] Preferably, a first adjustment hole extending from the first end to the second end along its extension direction is provided in the coupling rod body. A first telescopic rod is fixedly connected to the outer side wall of the first ball seat. The extension direction of the first telescopic rod is perpendicular to the extension direction of the first threaded rod. The first telescopic rod is inserted into the first adjustment hole and is threadedly connected to the first adjustment hole. For different vehicle models, due to the differences in the stabilizer bar and the shock absorber or different design schemes, there are differences in the length of the coupling rod and the angles at which the coupling rod is connected to the stabilizer bar and the shock absorber. Through the above technical solution, by using the telescopic structure combining the first telescopic rod and the first adjustment hole, the length of the coupling rod and the angle between the coupling rod body and its first ball seat can be adjusted, so as to adapt to the development requirements of different vehicle models, which helps to improve the versatility and practicality of the coupling rod of this application.

[0012] Preferably, a second adjustment hole extending from the second end to the first end along the extending direction is formed in the coupling rod body; a second telescopic rod is fixedly connected to the outer side wall of the second ball seat, the extending direction of the second telescopic rod is perpendicular to the extending direction of the second threaded rod, the second telescopic rod is arranged in the second adjustment hole and is in threaded connection with the second adjustment hole. Through the above technical solution, a telescopic structure combining the second telescopic rod and the second adjustment hole is also designed at the second end of the coupling rod, so that the adjustment of the coupling rod is more flexible, which helps to further improve the versatility and practicability of the coupling rod of the present application.

[0013] Preferably, the axis of the first adjustment hole coincides with the axis of the second adjustment hole, which is convenient for processing and improves the assembly centering property, and enhances the structural strength.

[0014] Preferably, the thread direction of the thread on the first telescopic rod is opposite to the thread direction of the thread on the second telescopic rod, which helps to prevent the loosening of the connection between the first telescopic rod and the first adjustment hole, and the second telescopic rod and the second adjustment hole.

[0015] Preferably, a plurality of first limiting holes distributed along the extending direction are formed at the first end of the coupling rod body, the first limiting holes are communicated with the first adjustment hole, a first pin hole is formed on the side surface of the first telescopic rod, a first limiting pin is arranged on the first telescopic rod, and the first limiting pin is simultaneously arranged in the first pin hole and any one of the first limiting holes; and / or, a plurality of second limiting holes distributed along the extending direction are formed at the second end of the coupling rod body, the second limiting holes are communicated with the second adjustment hole, a second pin hole is formed on the side surface of the second telescopic rod, a second limiting pin is arranged on the second telescopic rod, and the second limiting pin is simultaneously arranged in the second pin hole and any one of the second limiting holes. Through the above technical solution, while ensuring that the length of the coupling rod and the angles between the coupling rod body and its first ball seat and second ball seat are adjustable, the positions of the first telescopic rod in the first adjustment hole and the second telescopic rod in the second adjustment hole are limited, preventing loosening during use.

[0016] Preferably, the first limit pin includes a first spring and a first pin. The first end of the first spring is fixedly connected to the end of the first pin, and the second end of the first spring is connected to the inner wall of the first pin hole. When the first spring contracts, the sum of the length of the first spring and the length of the first pin is less than or equal to the length of the first pin hole. When the first spring extends naturally, the sum of the length of the first spring and the length of the first pin is greater than the length of the first pin hole; and / or, the second limit pin includes a second spring and a second pin. The first end of the second spring is fixedly connected to the end of the second pin, and the second end of the second spring is connected to the inner wall of the second pin hole. When the second spring contracts, the sum of the length of the second spring and the length of the second pin is less than or equal to the length of the second pin hole; when the second spring extends naturally, the sum of the length of the second spring and the length of the second pin is greater than the length of the second pin hole. Through the above technical solution, a specific structure of the limit pin is disclosed. This structure enables the automatic matching of the limit holes when adjusting the positions of the first telescopic rod in the first adjustment hole and the second telescopic rod in the second adjustment hole, making it more labor-saving to use.

[0017] An adjustable coupling rod of the present utility model has the following beneficial effects:

[0018] (1) By designing the ball head pins at both ends of the coupling rod for connecting its ends and the stabilizer bar and the shock absorber respectively as detachable ball head pins, and designing multiple pin parts in this detachable ball head pin that can be detachably connected to the ball head part, and the threaded rod specifications of the multiple pin parts are different. When developing the chassis, select a first pin part that matches the connection with the stabilizer bar in the chassis and a second pin part that matches the connection with the shock absorber in the chassis, and connect them to the first ball head part and the second ball head part respectively to assemble a coupling rod that matches the chassis; when developing a new vehicle model, disassemble the first pin part and the second pin part and install the first pin part and the second pin part that match the vehicle model being developed. There is no need to re-produce the coupling rod, which helps to shorten the development cycle of the chassis and reduce the R & D cost of the chassis.

[0019] (2) By designing a telescopic structure combining the first telescopic rod and the first adjustment hole at both ends of the coupling rod and a telescopic structure combining the second telescopic rod and the second adjustment hole respectively, the length of the coupling rod and the angles between the coupling rod body and its first ball seat and second ball seat can be adjusted, so as to adapt to the development requirements of different vehicle models, which helps to improve the versatility and practicality of the coupling rod of the present application. By designing the structures of the first limit hole, the first pin hole and the first limit pin between the first telescopic rod and the coupling rod body, and the second limit hole, the second pin hole and the second limit pin between the second telescopic rod and the coupling rod body respectively, while ensuring that the length of the coupling rod and the angles between the coupling rod body and its first ball seat and second ball seat are adjustable, the positions of the first telescopic rod in the first adjustment hole and the second telescopic rod in the second adjustment hole are restricted to prevent loosening during use. Description of the Drawings

[0020] To better understand the above and other objects, features, advantages and functions of the present utility model, reference may be made to the embodiments shown in the drawings. The same reference numerals in the drawings refer to the same components. Those skilled in the art should understand that the drawings are intended to schematically illustrate the preferred embodiments of the present utility model and have no restrictive effect on the scope of the present utility model, and the components in the drawings are not drawn to scale.

[0021] Figure 1 Fig. shows a schematic structural diagram of an adjustable coupling rod according to an embodiment of the present utility model;

[0022] Figure 2 Fig. shows a sectional view of an adjustable coupling rod according to an embodiment of the present utility model;

[0023] Figure 3 Fig. shows a sectional view of a second ball seat of an adjustable coupling rod according to an embodiment of the present utility model;

[0024] Figure 4 Fig. shows a schematic structural diagram of a second pin portion of an adjustable coupling rod according to an embodiment of the present utility model;

[0025] Figure 5 Fig. shows an installation state diagram of an adjustable coupling rod according to an embodiment of the present utility model.

[0026] Description of reference numerals:

[0027] 1, stabilizer bar; 2, shock absorber; 3, coupling rod; 31, coupling rod body; 311, first adjustment hole; 312, second adjustment hole; 313, first limit hole; 314, second limit hole; 32, first ball seat; 33, second ball seat; 34, first ball head pin; 341, first nut; 35, second ball head pin; 351, second ball head portion; 3511, second ball head; 3512, second connecting seat; 35121, second threaded hole; 352, second pin portion; 3521, second connecting rod; 3522, second connecting plate; 3523, second threaded rod; 35231, second nut; 36, first telescopic rod; 361, first limit pin; 37, second telescopic rod; 371, second limit pin; 3711, second spring; 3712, second pin. Detailed implementation manners

[0028] The exemplary embodiments of the present disclosure will be described below with reference to the accompanying drawings. Various details of the embodiments of the present disclosure are included to facilitate understanding, and they should be considered merely exemplary. Therefore, those of ordinary skill in the art should recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, descriptions of well-known functions and structures are omitted in the following description for clarity and conciseness.

[0029] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise specified, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "an exemplary embodiment" and "an embodiment" mean "at least one exemplary embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects. Other explicit and implicit definitions may also be included hereinafter.

[0030] To at least partially solve one or more of the above problems and other potential problems, embodiments of the present disclosure propose an adjustable coupling rod, including a coupling rod body 31, a first ball seat 32, a second ball seat 33, a first ball head pin 34, and a second ball head pin 35; both the first ball seat 32 and the second ball seat 33 are structures with a hollow interior and an open end, and the outer side walls of the first ball seat 32 and the second ball seat 33 are respectively connected to both ends of the coupling rod body 31; the first ball head pin 34 includes a first ball head portion and a plurality of first pin portions; the first ball head portion includes a first ball head and a first connection seat fixedly connected, the first ball head matches the hollow structure of the first ball seat 32, and the first ball head is rotatably connected within the hollow structure of the first ball seat 32; the first connection seat penetrates through the open structure of the first ball seat 32; the first pin portion includes a first connecting rod and a first threaded rod, and the specifications of the first threaded rods of different first pin portions respectively match the specifications at the connection of the stabilizer bar 1 in different vehicle models, and the end of the first threaded rod is fixedly connected to the end of the first connecting rod; each first connecting rod is detachably connected to the first connection seat, and a first nut 341 is threadedly connected to each first threaded rod; the second ball head pin 35 includes a second ball head portion 351 and a plurality of second pin portions 352; the second ball head portion 351 includes a second ball head 3511 and a second connection seat 3512 fixedly connected, the second ball head 3511 matches the hollow structure of the second ball seat 33, and the second ball head 3511 is rotatably connected within the hollow structure of the first ball seat 32; the second connection seat 3512 penetrates through the open structure of the second ball seat 33; the second pin portion 352 includes a second connecting rod 3521 and a second threaded rod 3523, and the specifications of the second threaded rods 3523 of different second pin portions 352 respectively match the specifications at the connection of the shock absorber 2 in different vehicle models, and the end of the second threaded rod 3523 is fixedly connected to the end of the second connecting rod 3521; each second connecting rod 3521 is detachably connected to the second connection seat 3512; a second nut 35231 is threadedly connected to each second threaded rod 3523.

[0031] As Figures 1 to 5 shown, the coupling rod 3 of the present application includes a coupling rod body 31, a first ball seat 32, a second ball seat 33, a first ball head pin 34, and a second ball head pin 35; the first ball seat 32 is a structure with a hollow interior and an open end, and the outer side wall of the first ball seat 32 is connected to the first end of the coupling rod body 31. Specifically, the outer side wall of the first ball seat 32 is fixedly connected or rotatably connected or adjustably connected to the first end of the coupling rod body 31; preferably, in this embodiment, the outer side wall of the first ball seat 32 is adjustably connected to the first end of the coupling rod body 31. Specifically, a first adjustment hole 311 extending along its extension direction from its first end to its second end is provided in the coupling rod body 31; a first telescopic rod 36 is fixedly connected to the outer side wall of the first ball seat 32, and the first telescopic rod 36 is inserted into the first adjustment hole 311 and is threadedly connected to the first adjustment hole 311.

[0032] More preferably, a plurality of first limiting holes 313 distributed along the extending direction thereof are formed at the first end of the coupling rod body 31. The first limiting holes 313 communicate with the first adjusting holes 311. A first pin hole is formed on the side surface of the first telescopic rod 36. A first limiting pin 361 is arranged on the first telescopic rod 36. The first limiting pin 361 is simultaneously inserted into the first pin hole and any one of the first limiting holes 313. In a preferred embodiment, the first limiting pin 361 includes a first spring and a first pin. The first end of the first spring is fixedly connected to the end of the first pin. The second end of the first spring is connected to the inner wall of the first pin hole. When the first spring contracts, the sum of the length of the first spring and the length of the first pin is less than or equal to the length of the first pin hole. When the first spring extends naturally, the sum of the length of the first spring and the length of the first pin is greater than the length of the first pin hole.

[0033] The first ball head pin 34 includes a first ball head portion and a plurality of first pin portions. The first ball head portion includes a first ball head and a first connecting seat fixedly connected. The diameter of the first ball head is preferably greater than 21 mm. The first ball head is matched with the hollow structure of the first ball seat 32. The first ball head is rotatably connected in the hollow structure of the first ball seat 32. The first connecting seat penetrates through the opening structure of the first ball seat 32. Preferably, the first connecting seat is matched with the opening structure of the first ball seat 32. The first connecting seat is rotatably connected in the opening structure of the first ball seat 32. The first pin portion includes a first connecting rod and a first threaded rod. The specifications of the first threaded rods of different first pin portions are respectively matched with the specifications at the connection of the stabilizer bar 1 in different vehicle models. Preferably, the specifications of the first threaded rods of the plurality of first pin portions are M12x1.5, M14x1.5, and M10x1.5 respectively. A first nut 341 is threadedly connected to each first threaded rod. The extending direction of the first threaded rod is perpendicular to the extending direction of the first telescopic rod 36. The axis of the first threaded rod coincides with the axis of the first connecting rod. The end of the first threaded rod is fixedly connected to the end of the first connecting rod. Each first connecting rod is detachably connected to the first connecting seat. Preferably, in this embodiment, a first threaded hole is formed at the end of the first connecting seat away from the first ball head. Threads are formed on the outer surface of each first connecting rod. Each first connecting rod is inserted into the first threaded hole and threadedly connected to the first threaded hole. During actual use, select a first pin portion that matches the connection of the stabilizer bar 1 and connect the first connecting rod thereon to the first threaded hole.

[0034] In a preferred embodiment, a first connecting plate is fixedly connected between the first connecting rod and the first threaded rod. The first connecting plate is perpendicular to both the first connecting rod and the first threaded rod. The size of the first connecting plate is larger than the diameter of the first threaded rod. Preferably, the first connecting plate is a circular plate. The diameter ranges of both the first connecting plate and the second connecting plate 3522 are 30-50 mm.

[0035] The second ball seat 33 has a structure with a hollow interior and an open end. The outer wall of the second ball seat 33 is connected to the second end of the coupling rod body 31. Specifically, the outer wall of the second ball seat 33 is fixedly connected, rotatably connected, or adjustably connected to the second end of the coupling rod body 31. Preferably, in this embodiment, the outer wall of the second ball seat 33 is adjustably connected to the second end of the coupling rod body 31. Specifically, a second adjustment hole 312 extending from the second end to the first end along its extension direction is formed in the coupling rod body 31. A second telescopic rod 37 is fixedly connected to the outer wall of the second ball seat 33. The second telescopic rod 37 is inserted into the second adjustment hole 312 and is threadedly connected to the second adjustment hole 312. More preferably, the axis of the first adjustment hole 311 coincides with the axis of the second adjustment hole 312, and the thread direction of the thread on the first telescopic rod 36 is opposite to the thread direction of the thread on the second telescopic rod 37.

[0036] In a preferred embodiment, a plurality of second limiting holes 314 distributed along its extension direction are formed at the second end of the coupling rod body 31. The second limiting holes 314 communicate with the second adjustment hole 312. A second pin hole is formed on the side surface of the second telescopic rod 37. A second limiting pin 371 is provided on the second telescopic rod 37. The second limiting pin 371 is simultaneously inserted into the second pin hole and any one of the second limiting holes 314. Preferably, the second limiting pin 371 includes a second spring 3711 and a second pin 3712. The first end of the second spring 3711 is fixedly connected to the end of the second pin 3712, and the second end of the second spring 3711 is connected to the inner wall of the second pin hole. When the second spring 3711 contracts, the sum of the length of the second spring 3711 and the length of the second pin 3712 is less than or equal to the length of the second pin hole. When the second spring 3711 naturally extends, the sum of the length of the second spring 3711 and the length of the second pin 3712 is greater than the length of the second pin hole.

[0037] The second ball head pin 35 includes a second ball head portion 351 and a plurality of second pin portions 352; the second ball head portion 351 includes a second ball head 3511 and a second connection seat 3512 which are fixedly connected; the diameter of the second ball head 3511 is preferably greater than 21 mm, the second ball head 3511 is matched with the hollow structure of the second ball seat 33, and the second ball head 3511 is rotatably connected within the hollow structure of the first ball seat 32; the second connection seat 3512 penetrates through the opening structure of the second ball seat 33, preferably, the second connection seat 3512 is matched with the opening structure of the second ball seat 33, and the second connection seat 3512 is rotatably connected within the opening structure of the second ball seat 33; the second pin portion 352 includes a second connecting rod 3521 and a second threaded rod 3523, and the specifications of the second threaded rods 3523 of different second pin portions 352 are respectively matched with the specifications at the connection of the shock absorber 2 in different vehicle models. Preferably, the specifications of the second threaded rods 3523 of the plurality of second pin portions 352 are M12x1.5, M14x1.5, and M10x1.5 respectively, and a second nut 35231 is threadedly connected to each second threaded rod 3523; the extending direction of the second threaded rod 3523 is perpendicular to the extending direction of the second telescopic rod 37, the axis of the second threaded rod 3523 coincides with the axis of the second connecting rod 3521, and the end of the second threaded rod 3523 is fixedly connected to the end of the second connecting rod 3521; each second connecting rod 3521 is detachably connected to the second connection seat 3512. Preferably, in this embodiment, a second threaded hole 35121 is provided at one end of the second connection seat 3512 away from the second ball head 3511, threads are provided on the outer surface of each second connecting rod 3521, each second connecting rod 3521 is inserted into the second threaded hole 35121 and threadedly connected to the second threaded hole 35121. During actual use, select a second pin portion 352 that matches the connection of the shock absorber 2 and connect the second connecting rod 3521 thereon to the second threaded hole 35121.

[0038] In a preferred embodiment, a second connecting plate 3522 is fixedly connected between the second connecting rod 3521 and the second threaded rod 3523. The second connecting plate 3522 is perpendicular to both the second connecting rod 3521 and the second threaded rod 3523, and the size of the second connecting plate 3522 is larger than the diameter of the second threaded rod 3523; preferably, the second connecting plate 3522 is a circular plate, and the diameter ranges of both the first connecting plate and the second connecting plate 3522 are 30 to 50 mm.

[0039] The embodiments of the present disclosure have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to technologies in the market, or to enable other ordinary skilled persons in the art to understand the present disclosure.

Claims

1. An adjustable coupling rod, characterized in that: It includes a coupling rod body (31), a first ball seat (32), a second ball seat (33), a first ball head pin (34) and a second ball head pin (35); Both the first ball seat (32) and the second ball seat (33) are structures with a hollow interior and an open end. The outer walls of the first ball seat (32) and the second ball seat (33) are respectively connected to both ends of the coupling rod body (31); The first ball head pin (34) includes a first ball head part and multiple first pin parts; the first ball head part includes a first ball head and a first connection seat fixedly connected. The first ball head matches the hollow structure of the first ball seat (32), and the first ball head is rotatably connected within the hollow structure of the first ball seat (32); the first connection seat penetrates the open structure of the first ball seat (32); the first pin part includes a first connecting rod and a first threaded rod. The specifications of the first threaded rods of different first pin parts respectively match the specifications at the connection of the stabilizer bar (1) in different vehicle models. The end of the first threaded rod is fixedly connected to the end of the first connecting rod; each first connecting rod is detachably connected to the first connection seat, and a first nut (341) is threadedly connected to each first threaded rod; The second ball head pin (35) includes a second ball head part (351) and multiple second pin parts (352); the second ball head part (351) includes a second ball head (3511) and a second connection seat (3512) fixedly connected. The second ball head (3511) matches the hollow structure of the second ball seat (33), and the second ball head (3511) is rotatably connected within the hollow structure of the first ball seat (32); the second connection seat (3512) penetrates the open structure of the second ball seat (33); the second pin part (352) includes a second connecting rod (3521) and a second threaded rod (3523). The specifications of the second threaded rods (3523) of different second pin parts (352) respectively match the specifications at the connection of the shock absorber (2) in different vehicle models. The end of the second threaded rod (3523) is fixedly connected to the end of the second connecting rod (3521); each second connecting rod (3521) is detachably connected to the second connection seat (3512); a second nut (35231) is threadedly connected to each second threaded rod (3523).

2. The adjustable coupling rod according to claim 1, characterized in that: A first connecting plate is fixedly connected between the first connecting rod and the first threaded rod. The first connecting plate is perpendicular to both the first connecting rod and the first threaded rod, and the size of the first connecting plate is larger than the diameter of the first threaded rod; a second connecting plate (3522) is fixedly connected between the second connecting rod (3521) and the second threaded rod (3523). The second connecting plate (3522) is perpendicular to both the second connecting rod (3521) and the second threaded rod (3523), and the size of the second connecting plate (3522) is larger than the diameter of the second threaded rod (3523).

3. The adjustable coupling rod according to claim 2, wherein: Both the first connecting plate and the second connecting plate (3522) are circular plates, and the diameter ranges of both the first connecting plate and the second connecting plate (3522) are 30 - 50 mm.

4. An adjustable coupling rod according to claim 1, characterized in that: A first threaded hole is formed at one end of the first connecting seat away from the first ball head. Threads are provided on the outer surface of each first connecting rod. Each first connecting rod is inserted into the first threaded hole and is in threaded connection with the first threaded hole. A second threaded hole (35121) is formed at one end of the second connecting seat (3512) away from the second ball head (3511). Threads are provided on the outer surface of each second connecting rod (3521). Each second connecting rod (3521) is inserted into the second threaded hole (35121) and is in threaded connection with the second threaded hole (35121).

5. An adjustable coupling rod according to claim 1, characterized in that: The specifications of the plurality of first threaded rods and the specifications of the plurality of second threaded rods (3523) are M12x1.5, M14x1.5, and M10x1.5 respectively.

6. An adjustable coupling rod according to claim 1, characterized in that: A first adjustment hole (311) extending from the first end to the second end along its extending direction is formed in the coupling rod body (31). A first telescopic rod (36) is fixedly connected to the outer side wall of the first ball seat (32). The extending direction of the first telescopic rod (36) is perpendicular to the extending direction of the first threaded rod. The first telescopic rod (36) is inserted into the first adjustment hole (311) and is in threaded connection with the first adjustment hole (311).

7. An adjustable coupling rod according to claim 6, characterized in that: A second adjustment hole (312) extending from the second end to the first end along its extending direction is formed in the coupling rod body (31). A second telescopic rod (37) is fixedly connected to the outer side wall of the second ball seat (33). The extending direction of the second telescopic rod (37) is perpendicular to the extending direction of the second threaded rod (3523). The second telescopic rod (37) is inserted into the second adjustment hole (312) and is in threaded connection with the second adjustment hole (312).

8. An adjustable coupling rod according to claim 7, characterized in that: The thread direction of the thread on the first telescopic rod (36) is opposite to the thread direction of the thread on the second telescopic rod (37).

9. An adjustable coupling rod according to claim 7, characterized in that: A plurality of first limiting holes (313) distributed along its extending direction are formed at the first end of the coupling rod body (31). The first limiting holes (313) communicate with the first adjustment hole (311). A first pin hole is formed on the side surface of the first telescopic rod (36). A first limiting pin (361) is provided on the first telescopic rod (36). The first limiting pin (361) is simultaneously inserted into the first pin hole and any one of the first limiting holes (313); and / or, a plurality of second limiting holes (314) distributed along its extending direction are formed at the second end of the coupling rod body (31). The second limiting holes (314) communicate with the second adjustment hole (312). A second pin hole is formed on the side surface of the second telescopic rod (37). A second limiting pin (371) is provided on the second telescopic rod (37). The second limiting pin (371) is simultaneously inserted into the second pin hole and any one of the second limiting holes (314).

10. An adjustable coupling rod according to claim 9, characterized in that: The first limit pin (361) includes a first spring and a first pin. The first end of the first spring is fixedly connected to the end of the first pin, and the second end of the first spring is connected to the inner wall of the first pin hole. When the first spring contracts, the sum of the length of the first spring and the length of the first pin is less than or equal to the length of the first pin hole. When the first spring extends naturally, the sum of the length of the first spring and the length of the first pin is greater than the length of the first pin hole; and / or, the second limit pin (371) includes a second spring (3711) and a second pin (3712). The first end of the second spring (3711) is fixedly connected to the end of the second pin (3712), and the second end of the second spring (3711) is connected to the inner wall of the second pin hole. When the second spring (3711) contracts, the sum of the length of the second spring (3711) and the length of the second pin (3712) is less than or equal to the length of the second pin hole; when the second spring (3711) extends naturally, the sum of the length of the second spring (3711) and the length of the second pin (3712) is greater than the length of the second pin hole.

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