Adjustable steering tie rod

Abstract

The utility model relates to the technical field of automobiles, in particular to an adjustable steering tie rod which comprises a pipe clamp, the pipe clamp is locked and matched with a nut through a bolt, the pipe clamp is connected with a tie rod body in a matched mode, and the tie rod body comprises a rod body, a first connecting rod and a second connecting rod. The pipe clamp, the bolt and the nut are all installed outside the first connecting rod and the second connecting rod, and the first connecting rod and the second connecting rod are both rotationally connected with a ball hinge joint assembly through threads. The whole device is simple in design and easy to operate, through the arrangement of the two spherical hinge joint assemblies with the opposite thread screwing directions, the effect length of the steering tie rod can be adjusted only by screwing the tie rod body on the premise that the steering tie rod does not need to be assembled and disassembled, and the steering tie rod is convenient to assemble and disassemble. Therefore, the accurate requirements of users on the action length of the tie rod under different axle distances are met; and the scale area is arranged, and the tail end of the ball joint assembly is used as a scale pointer, so that the visual adjustment of the action length of the steering tie rod is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, and particularly discloses an adjustable steering tie rod. Background Art

[0002] The tie rod is the main component of the car steering system. The tie rod of the car steering gear is fixed together with the front shock absorber. In the rack and pinion steering gear, the tie rod ball head is screwed into the rack end; in the recirculating ball steering gear, the tie rod ball head is screwed into the adjustment tube to adjust the distance between the ball joints. The steering rod is an important part of the car steering mechanism, which directly affects the stability and safety of the car's operation and the service life of the tires.

[0003] When a car is turning, the ideal state is that all wheels are moving around an instantaneous center, and all wheels are performing pure rolling motion without sliding on different circumferences. Different wheelbase models correspond to different circumferences. Commercial vehicles generally use an integral steering trapezoid, and a reasonable steering trapezoid can approximately meet the above requirements. When designing the steering trapezoid, the chassis factory takes into account the batch process reasons and optimizes it for a certain wheelbase range. That is, for a certain wheelbase range, the effective length of the steering tie rod is consistent.

[0004] The utility model patent with authorization announcement number: CN218718156U discloses an automobile steering tie rod assembly, including a coaxially arranged ball stud and ball seat, the lower end of the ball stud is a sphere, the ball seat is cylindrical and open at both ends, the sphere is in the ball seat, and the inner wall of the ball seat has a spherical surface that is attached to the outer wall of the sphere and is used to limit the upward movement of the sphere; a base is coaxially fixed inside the lower end of the ball seat, and the outer wall of the base is in close contact with the inner wall of the ball seat to form a seal, a spherical cavity matching the sphere is formed on the top wall of the base, and the lower outer wall of the sphere is attached to the inner wall of the spherical cavity; an external threaded column is coaxially formed on the top wall of the base.

[0005] The automobile steering tie rod assembly disclosed in the above utility model patent has a fixed effective length of the tie rod, and a tie rod of a single effective length can only meet the needs of vehicles with a fixed wheelbase range under this specification. When facing vehicles with different wheelbase ranges, or when there is a more precise demand for the effective length within this wheelbase range, the effective length of the tie rod cannot be accurately adjusted according to the wheelbase, so that the inner and outer turning angle relationship when the wheel is turned cannot reach the most ideal angle, which can easily cause the wheel to slip; when the user has different requirements for the effective length of the tie rod, the user can only replace the tie rods of different effective lengths multiple times to meet the requirements, which is not only time-consuming and labor-intensive, but also easy to cause waste, so that the cost of production and use increases significantly. Utility Model Content

[0006] Aiming at the problem that the current models within the same wheelbase range still use a steering tie rod with a consistent effective length, the utility model provides an adjustable steering tie rod.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] An adjustable steering tie rod comprises a pipe clamp, which is locked with a bolt and a nut. The pipe clamp is matched with a tie rod body, and the tie rod body comprises a rod body, a first connecting rod and a second connecting rod. The pipe clamp, bolts and nuts are all installed on the outside of the first connecting rod and the second connecting rod. The first connecting rod and the second connecting rod are both connected to a ball joint assembly by threaded rotation.

[0009] Preferably, the first connecting rod and the second connecting rod are both hollow structures and are provided with threads with opposite rotation directions on the inner side. The outer walls of the first connecting rod and the second connecting rod are both provided with through openings, and the depth of the openings is the same as the length of the first connecting rod and the second connecting rod.

[0010] Preferably, the ball joint assembly includes a first ball joint and a second ball joint, the first ball joint and the second ball joint have opposite thread directions, the first ball joint is connected to a first connecting rod, and the second ball joint is connected to a second connecting rod.

[0011] Preferably, the openings of the first connecting rod and the second connecting rod are both provided with scale areas, and the scale areas are provided with indicating scales capable of displaying the effective length of the steering tie rod.

[0012] Preferably, the longest indicating scale is the zero point scale, and the indicating scales are evenly arranged on both sides of the zero point scale as the center.

[0013] Preferably, the interval distance of the indicating scales is equal to the thread pitch of the first ball joint and the second ball joint, and the tail ends of the first ball joint and the second ball joint are parallel to the indicating scales.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The overall device of the utility model is simple in design and easy to operate. By setting two ball joint assemblies with opposite thread rotation directions, the effective length of the steering tie rod can be adjusted by simply twisting the tie rod body without the need to install or remove the steering tie rod, thereby meeting the user's precise requirements for the effective length of the steering tie rod under different wheelbases;

[0016] 2. The utility model provides a scale area, and the scale interval in the scale area is consistent with the pitch of the ball joint assembly. The tail end of the ball joint acts as a scale pointer to achieve visual adjustment of the effective length of the steering tie rod, so that the adjustment of the effective length of the steering tie rod is based on the scale. When the user increases or decreases the effective length of the steering tie rod, the user can refer to the scale line for adjustment, so that the user can control the effective length of the steering tie rod more accurately.

[0017] 3. The utility model provides a through opening on the outer wall of the first connecting rod and the second connecting rod, and arranges a locking matching structure including a pipe clamp, a bolt and a nut at the opening, so that after the user accurately adjusts the effective length of the steering tie rod, the tie rod body and the ball joint are locked to prevent them from rotating again, thereby preventing the effective length of the steering tie rod from being changed due to external force and avoiding affecting the subsequent operation of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the utility model, the following will briefly introduce the drawings required for the description. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the overall installation of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall device structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the ball joint assembly and the tie rod body of the utility model;

[0022] Figure 4 It is a schematic diagram of the installation of the ball joint assembly and the tie rod body of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the ball joint assembly, opening and scale area of ​​the utility model;

[0024] In the figure: 1. pipe clamp, 2. bolt, 3. nut, 4. tie rod body, 401. rod body, 402. first connecting rod, 403. second connecting rod, 5. ball joint assembly, 501. first ball joint, 502. second ball joint, 6. opening, 7. scale area, 8. indication scale, 9. zero point scale. DETAILED DESCRIPTION

[0025] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0026] This specific embodiment provides an adjustable steering tie rod, such as Figure 1-5 As shown, it includes a pipe clamp 1, which is in a semicircular ring shape, and the open end of the pipe clamp 1 is connected with a bolt 2 and a nut 3 that are locked with the pipe clamp 1; the pipe clamp 1 is equipped with a transverse tie rod body 4, which is in a slender cylindrical shape. The transverse tie rod body 4 includes a rod body 401, a first connecting rod 402 and a second connecting rod 403, the first connecting rod 402 and the second connecting rod 403 are connected to both ends of the rod body 401, the first connecting rod 402 and the second connecting rod 403 are cylindrical, and the diameters of the two are smaller than the diameter of the rod body 401, the first connecting rod 402 and the second connecting rod 403 are hollow inside, and the outer walls of the first connecting rod 402 and the second connecting rod 403 are provided with a through opening 6, the opening 6 is rectangular, and the depth of the opening 6 is consistent with the length of the first connecting rod 402 and the second connecting rod 403.

[0027] Among them, the inner circumferences of the first connecting rod 402 and the second connecting rod 403 are provided with threads, and the threads of the two are in opposite directions. The first connecting rod 402 and the second connecting rod 403 are both connected to the ball joint assembly 5 through threads. The ball joint assembly 5 includes a first ball joint 501 and a second ball joint 502. The first connecting rod 402 is connected to the first ball joint 501, and the second connecting rod 403 is connected to the second ball joint 502. The threads of the first ball joint 501 and the second ball joint 502 are in opposite directions, and the first ball joint 501 and the second ball joint 502 can be rotated in opposite or relative directions by screwing the rod body 401. When the user screws the rod body 401 clockwise, the first ball joint 501 and the second ball joint 502 rotate in relative directions; when the user screws the rod body 401 counterclockwise, the first ball joint 501 and the second ball joint 502 rotate in opposite directions.

[0028] Secondly, if Figure 4-5As shown, the first connecting rod 402 and the second connecting rod 403 are both provided with a scale area 7, and the scale areas 7 are distributed on the upper and lower sides of the opening 6. Scale lines are provided in the scale area 7, and the longest one is the zero scale line 9. The scale lines are evenly arranged on both sides with the zero scale line 9 as the center, and the distance between two adjacent scale lines is equal to the thread spacing of the first ball joint 501 and the second ball joint 502, that is, when the first ball joint 501 and the second ball joint 502 rotate one circle, the distance moved by the tail ends of the first ball joint 501 and the second ball joint 502 is exactly one scale.

[0029] Since the threaded parts of the first ball joint 501 and the second ball joint 502 are respectively placed inside the first connecting rod 402 and the second connecting rod 403, and rotate and move inside, the user can observe the positions of the tail ends of the first ball joint 501 and the second ball joint 502 when moving, and the scale lines corresponding to the tail ends of the first ball joint 501 and the second ball joint 502 when moving at the opening. Therefore, the user can record the scale lines indicated by the tail ends of the first ball joint 501 and the second ball joint 502, and then calculate to know the effective length of the steering tie rod; therefore, the tail ends of the first ball joint 501 and the second ball joint 502 are equivalent to pointers, which can be used to indicate the effective length of the steering tie rod after the ball joint assembly 5 rotates and moves a certain distance.

[0030] The working principle of the utility model is:

[0031] Before use, the user screws the nut 3, loosens the pipe clamp 1, and then screws the threaded parts of the first ball joint 501 and the second ball joint 502 into the first connecting rod 402 and the second connecting rod 403 respectively. During the screwing process, the user can observe the scale lines corresponding to the tail ends of the first ball joint 501 and the second ball joint 502 at the opening 6 to determine the effective length of the steering tie rod. When the effective length required by the user is reached, the user can screw the nut 3 again, lock the pipe clamp 1, and fix the first ball joint 501, the second ball joint 502 and the tie rod body 4 so that they cannot move again.

[0032] During use, the user connects the ball joint assembly 5 to the steering trapezoidal arm, and then tests whether the effective length of the steering tie rod meets the requirements. If the user needs to adjust the effective length of the steering tie rod, he can screw the nut 3, loosen the pipe clamp 1, and then screw the rod body 401 clockwise or counterclockwise to increase or shorten the effective length of the steering tie rod. When screwing the rod body 401, the user can refer to the scale line corresponding to the tail end of the ball joint assembly 5 to determine whether the effective length is increased or shortened. After the adjustment is completed, the user only needs to screw the nut 3 again, lock the pipe clamp 1 in conjunction with the bolt 2, and fix the first ball joint 501, the second ball joint 502 and the tie rod body 4 so that they cannot move.

[0033] Compared with the prior art, the utility model has a simple and easy-to-operate overall device design. By setting two ball-joint joint assemblies with opposite thread rotation directions, the effective length of the steering tie rod can be adjusted by only screwing the tie rod body without loading and unloading the steering tie rod, thereby meeting the user's precise requirements for the effective length of the tie rod under different wheelbases; secondly, the utility model sets a scale area, and the scale interval in the scale area is consistent with the pitch of the ball-joint joint assembly. The tail end of the ball-joint joint assembly serves as a scale pointer, thereby realizing visual adjustment of the effective length of the tie rod, so that the adjustment of the effective length of the steering tie rod can be achieved. There are scales to rely on, and when the user increases or decreases the effective length of the tie rod, the user can easily adjust it with reference to the scale line, so that the user can control the effective length of the tie rod more accurately; furthermore, the utility model opens openings on the first connecting rod and the second connecting rod, and provides a locking matching structure including a pipe clamp, a bolt and a nut at the opening, so that the user can lock the tie rod and the ball joint after accurately adjusting the effective length of the steering tie rod to prevent it from rotating, thereby preventing the change of the effective length of the steering tie rod and avoiding affecting the subsequent operations of the user, and therefore has a very broad application prospect.

[0034] 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 adjustable steering tie rod, comprising a pipe clamp (1), characterized in that: The pipe clamp (1) is locked with a bolt (2) and a nut (3). The pipe clamp (1) is connected with a transverse tie rod body (4). The transverse tie rod body (4) includes a rod body (401), a first connecting rod (402) and a second connecting rod (403). The pipe clamp (1), the bolt (2) and the nut (3) are all installed on the outside of the first connecting rod (402) and the second connecting rod (403). The first connecting rod (402) and the second connecting rod (403) are both connected with a ball joint assembly (5) by threaded rotation.

2. The adjustable steering tie rod according to claim 1, characterized in that: The first connecting rod (402) and the second connecting rod (403) are both hollow structures, and are provided with threads with opposite rotation directions on the inner side. The outer walls of the first connecting rod (402) and the second connecting rod (403) are both provided with through openings (6), and the depth dimension of the opening (6) is the same as the length dimension of the first connecting rod (402) and the second connecting rod (403).

3. The adjustable steering tie rod according to claim 1, characterized in that: The ball joint assembly (5) comprises a first ball joint (501) and a second ball joint (502), wherein the thread rotation directions of the first ball joint (501) and the second ball joint (502) are opposite, the first ball joint (501) is connected to a first connecting rod (402), and the second ball joint (502) is connected to a second connecting rod (403).

4. The adjustable steering tie rod according to claim 3, characterized in that: The openings (6) of the first connecting rod (402) and the second connecting rod (403) are both provided with a scale area (7), and the scale area (7) is provided with an indicating scale (8) capable of displaying the effective length of the steering tie rod.

5. The adjustable steering tie rod according to claim 4, characterized in that: The longest indicating scale (8) is the zero scale (9), and the indicating scales (8) are evenly arranged on both sides with the zero scale (9) as the center.

6. The adjustable steering tie rod according to claim 5, characterized in that: The interval distance of the indicating scale (8) is equal to the thread pitch of the first ball joint (501) and the second ball joint (502), and the tail ends of the first ball joint (501) and the second ball joint (502) are parallel to the indicating scale (8).

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