Automobile steering pull rod structure

Abstract

The invention discloses an automobile steering pull rod structure which comprises a pull rod ball head, a reinforcing inner cylinder and a reinforcing outer cylinder, in the using process of the automobile steering pull rod structure, a supporting inner column part is matched with a built-in locking ring to further improve the strength of an inner cavity area at the middle end of a mounting inner cavity part, and pull arms are installed at the two ends of a supporting inner column in an extending mode through first buffer bases; the pull arm and the inner side wall of the mounting inner cavity are locked and mounted through the second buffer seat, so that the built-in lock ring part, the pull arm and the pull rod ball head form a whole, the supporting capacity is improved from multiple sections in the reinforcing inner barrel, transverse rib plates in transverse rib grooves in the mounting inner cavity can improve transverse torsion which can be borne by the reinforcing inner barrel, and the service life of the reinforcing inner barrel is prolonged. And meanwhile, due to slotting treatment in the reinforcing inner barrel, transverse torsion cannot be conducted continuously, continuous conduction of transverse torsion can be consumed among different materials, the transverse rib columns can improve the vertical torsion resistance and bending resistance of the reinforcing inner barrel when the reinforcing inner barrel is subjected to vertical torsion, and the transverse torsion resistance of the reinforcing inner barrel is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of automobile steering rod torsion resistance, in particular to an automobile steering rod structure. Background Art

[0002] The steering tie rod is the core transmission component of a vehicle's steering system and can be divided into two categories based on function: a straight tie rod and a transverse tie rod. Its working principle is to convert the rotational motion of the steering wheel into steering movement of the wheels: the straight tie rod connects the steering rocker arm and the steering knuckle arm to transmit power; the transverse tie rod coordinates the steering angles of the left and right wheels and has the function of adjusting the toe angle (tire inclination angle) to ensure the vehicle's straight-line stability and reduce tire wear. The straight tie rod and the transverse tie rod are key components to ensure the correct movement relationship between the left and right steering wheels. In the prior art, publication number "CN119262071B" discloses a high-safety automobile steering rod, comprising an outer rod body, both ends of the outer rod body are threadedly connected to a fixing seat, the circumferential inner wall of the fixing seat is threadedly connected to a threaded rod, one end of the threaded rod is fixedly connected to a ball head seat, the outer wall of the threaded rod is sleeved with a locking ring, the ball head seat at one end of the threaded rod presses the locking ring against the outer wall of one end of the fixing seat, a reinforcement cavity is provided inside the outer rod body, and an inner support assembly is provided inside the outer rod body. The use of the above-mentioned inner support assembly can provide good support for the outer rod body, and further improve the strength of the outer rod body while ensuring the lightweight of the outer rod body, so that the entire steering rod is not prone to cracks or damage and breakage under long-term use, effectively improving the safety of the entire steering rod.

[0003] However, the existing technology still has major deficiencies, such as: In the above-mentioned device and the prior art, the outer rod body achieves external torsion resistance through an internal support structure, but the inner cavity of the rod body lacks effective support, locking, longitudinal and lateral torsion resistance functions. When the vehicle is driving on complex road conditions, the steering rod on the vehicle body will be pulled in different directions, which can easily cause cracks inside the steering rod and thus lead to exercise problems. Summary of the Invention

[0004] The object of the present invention is to provide a steering rod structure for an automobile to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a steering rod structure for an automobile, comprising a rod ball head, a reinforced inner tube, and a reinforced outer tube, wherein the reinforced inner tube is provided with an installation cavity, the rod ball head is mounted on both ends of the reinforced inner tube, the reinforced outer tube is covered and mounted on the surface of the reinforced inner tube, and the outer surface of the installation cavity is provided with a ring-shaped array of through rib grooves; The pull rod inner tube anti-cracking composite support unit is arranged in the inner central region of the mounting inner cavity, and is used for achieving the anti-cracking support between the pull rod inner tube and the pull rod ball head. The pull rod inner tube locking anti-torsion locking unit is arranged in the inner cavity of the mounting inner cavity near the reinforcing outer tube region, and is used for improving the anti-torsion locking of the horizontal and vertical states of the inner part of the pull rod inner tube under the premise of achieving the anti-cracking function of the pull rod inner tube.

[0006] Preferably, the pull rod inner tube anti-cracking composite support unit comprises a middle anti-cracking part, the middle anti-cracking part comprises an internal locking ring, the top surface and the bottom surface of the internal locking ring are arranged in an arc shape, the internal locking ring is arranged in the inner central region of the mounting inner cavity, a support inner column is additionally arranged in the internal locking ring, and a buffer seat one is arranged at both ends of the support inner column.

[0007] Preferably, the pull rod inner tube anti-cracking composite support unit further comprises a side anti-cracking part, the side anti-cracking part comprises a pull arm, the pull arm is arranged in two groups, the two groups of pull arms are symmetrically arranged at both ends of the support inner column, buffer seat twos are symmetrically arranged at both sides of the inner part of the mounting inner cavity, and both ends of the pull arm are fixed with the buffer seat one and the buffer seat two.

[0008] Preferably, the pull rod inner tube locking anti-torsion locking unit comprises a horizontal anti-torsion part, the horizontal anti-torsion part comprises horizontal rib plates, the horizontal rib plates are arranged in multiple groups, multiple horizontal rib grooves are arranged in the inner part of the mounting inner cavity, and the multiple horizontal rib plates are arranged at equal intervals in the multiple horizontal rib grooves.

[0009] Preferably, the pull rod inner tube locking anti-torsion locking unit further comprises a vertical anti-torsion part, the vertical anti-torsion part comprises vertical rib plates, the vertical rib plates are arranged in multiple groups, multiple vertical rib grooves are arranged in the inner part of the mounting inner cavity, and the multiple vertical rib plates are arranged at equal intervals in the multiple vertical rib grooves.

[0010] Preferably, the pull rod inner tube locking anti-torsion locking unit further comprises a composite locking part, the composite locking part comprises a horizontal rib column and a vertical rib column, the horizontal rib column is arranged at the bottom of one group of the horizontal rib plates, the vertical rib column is arranged at one side of one group of the vertical rib plates, the top and the bottom of the pull arm are provided with rib holes one, and the two sides of the pull arm are provided with rib holes two.

[0011] Preferably, vertical anti-cracking plates are arranged between adjacent vertical rib plates.

[0012] Preferably, a reinforcing block is arranged in the inner side of the buffer seat one, and one side of the reinforcing block is attached to one end of the pull arm.

[0013] Preferably, the two inner sides of the buffer seat are also provided with reinforcing blocks, one side of the reinforcing blocks is attached to the other end of the pull arm.

[0014] Preferably, the inner cavity of the pull rod ball head is provided with an installation inner bushing.

[0015] Compared with the prior art, the present application has the following advantages: 1. During use, the installation inner bushing can effectively reduce the wear of the steering structure and the inner cavity of the pull rod ball head, the outer reinforcing cylinder is wrapped on the surface of the inner reinforcing cylinder, the outer reinforcing cylinder is extended to both ends of the inner reinforcing cylinder, and the outer reinforcing cylinder is fixed to the outer end of the pull rod ball head, so as to form a double-wrapped structure, so as to improve the inner and outer layer torsion and tear resistance of the pull rod part, and the outer reinforcing cylinder is attached to the outer surface of the inner reinforcing cylinder, so as to effectively reduce the stability of the inner cavity structure of the inner reinforcing cylinder, and further improve the torsion resistance of the inner reinforcing cylinder. 2. During use, the built-in lock ring is located in the middle section of the installation inner cavity, can effectively support the middle end of the installation inner cavity, and the built-in lock ring is filled with a support inner column, so as to further improve the strength of the middle end of the installation inner cavity, the two ends of the support inner column are extended and provided with a pull arm through the buffer seat one, and the pull arm is locked and installed with the inner side wall of the installation inner cavity through the buffer seat two, so that the built-in lock ring part, the pull arm and the pull rod ball head form an integral whole, and the support ability of the inner reinforcing cylinder is improved. 3. During use, when the inner reinforcing cylinder is subjected to a torsion force from the transverse state, the transverse rib plate in the transverse rib groove in the installation inner cavity can improve the transverse torsion force that the inner reinforcing cylinder can withstand, and due to the slot processing in the inner reinforcing cylinder, the conduction of the transverse torsion force cannot be continuous, and the continuous conduction of the transverse torsion force between different materials is consumed, and the transverse rib column installed on the bottom transverse rib plate can improve the vertical torsion and bending resistance of the inner reinforcing cylinder when the inner reinforcing cylinder is subjected to a vertical torsion force, so as to ensure the transverse state torsion resistance of the inner reinforcing cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the whole device of the present application; Figure 2 It is a schematic diagram of the inner reinforcing cylinder part of the present application; Figure 3 It is a schematic diagram of the installation inner cavity, transverse rib groove and vertical rib groove part of the present application; Figure 4 It is a schematic diagram of the second rib hole part of the present application; Figure 5 It is a schematic diagram of the vertical anti-cracking plate part of the present application; Figure 6 It is a schematic diagram of the pull arm, transverse rib plate and vertical rib plate part of the present application; Figure 7A schematic view of a part of the muscle hole in the application; Figure 8 A schematic view of a part of the transverse muscle column and vertical muscle column in the application.

[0017] In the figure: 1, pull rod ball head; 2, reinforced inner cylinder; 21, installation inner cavity; 22, transverse muscle groove; 23, vertical muscle groove; 3, reinforced outer cylinder; 4, installation inner bushing; 5, transverse muscle plate; 51, transverse muscle column; 6, vertical muscle plate; 61, vertical muscle column; 62, vertical anti-cracking plate; 7, support inner column; 71, built-in lock ring; 72, buffer seat one; 73, reinforcing block; 8, pull arm; 81, muscle hole one; 82, muscle hole two; 9, buffer seat two. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0019] In the description of the application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0020] In addition, fixed connection refers to the connection after fixing the parts or components without any relative movement; transmission connection refers to a connection mode in which mechanical movement or torque is transmitted to other working components through a transmission member; sliding connection refers to a connection mode in which two objects are in contact but not fixed, and can slide relative to each other; and rotating connection refers to a connection mode in which two objects are in contact but not fixed, and can rotate relative to each other.

[0021] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0022] Please refer to Figures 1-8 The application provides a technical solution: Embodiment one: an automobile steering pull rod structure: A vehicle steering rod structure includes a rod ball 1, a reinforced inner tube 2, and a reinforced outer tube 3. The reinforced inner tube 2 is provided with an installation cavity 21. The rod ball 1 is mounted on both ends of the reinforced inner tube 2. The reinforced outer tube 3 is mounted on the surface of the reinforced inner tube 2. The outer surface of the installation cavity 21 is provided with a ring-shaped array of through rib grooves. The inner cavity of the tie rod ball head 1 is provided with an installation inner sleeve 4.

[0023] The tie rod inner tube anti-cracking composite support unit is arranged in the central area of ​​the installation cavity 21 and is used to achieve anti-cracking support between the tie rod inner tube and the tie rod ball head 1; The anti-cracking composite support unit of the inner tube of the pull rod includes a central anti-cracking part, which includes a built-in locking ring 71. The top surface of the built-in locking ring 71 and the bottom surface of the built-in locking ring 71 are both arc-shaped. The built-in locking ring 71 is installed in the central area inside the installation cavity 21. A supporting inner column 7 is added inside the built-in locking ring 71, and a buffer seat 72 is installed at both ends of the supporting inner column 7.

[0024] The anti-cracking composite support unit of the pull rod inner tube also includes a side anti-cracking part, which includes a pull arm 8. The pull arm 8 is arranged in two groups, and the two groups of pull arms 8 are symmetrically distributed at both ends of the supporting inner column 7. Buffer seats 2 9 are symmetrically installed on both sides of the installation cavity 21, and the two ends of the pull arm 8 are respectively fixed to the buffer seat 1 72 and the buffer seat 2 9.

[0025] A reinforcement block 73 is installed inside the buffer seat 1 72 , and one side of the reinforcement block 73 is in contact with one end of the pulling arm 8 .

[0026] A reinforcement block 73 is also installed on the inner side of the buffer seat 2 9 , and one side of the reinforcement block 73 is in contact with the other end of the pulling arm 8 .

[0027] In this embodiment, the built-in locking ring 71 is filled with the supporting inner column 7, and the supporting inner column 7 cooperates with the built-in locking ring 71 to further enhance the strength of the middle inner cavity area of ​​the installation inner cavity 21. The two ends of the supporting inner column 7 are extended and installed with a pull arm 8 through the buffer seat 1 72. The pull arm 8 is locked and installed with the inner wall of the installation inner cavity 21 through the buffer seat 2 9. This makes the built-in locking ring 71 part, the pull arm 8 and the pull rod ball head 1 form a whole, thereby enhancing the support capacity from multiple sections inside the reinforced inner tube 2.

[0028] The pull rod inner tube locking anti-torsion locking unit is arranged in the inner cavity 21 of the installation chamber close to the reinforced outer tube 3 area, and is used to improve the horizontal and vertical anti-torsion locking inside the pull rod inner tube while realizing the anti-cracking function of the pull rod inner tube.

[0029] The torsion-resistant locking unit of the locking of the inner tube of the drawbar comprises a transverse torsion-resistant part, which comprises a plurality of groups of transverse ribs 5, and the inner mounting cavity 21 is provided with a plurality of groups of transverse rib grooves 22, and the plurality of groups of transverse ribs 5 are installed at equal intervals in the plurality of groups of transverse rib grooves 22.

[0030] The torsion-resistant locking unit of the locking of the inner tube of the drawbar also comprises a vertical torsion-resistant part, which comprises a plurality of groups of vertical ribs 6, and the inner mounting cavity 21 is provided with a plurality of groups of vertical rib grooves 23, and the plurality of groups of vertical ribs 6 are installed at equal intervals in the plurality of groups of vertical rib grooves 23, and one side of one group of vertical ribs 6 is provided with a vertical rib column 61.

[0031] A vertical anti-cracking plate 62 is arranged between adjacent vertical ribs 6.

[0032] In this embodiment, the slotted processing inside the reinforcing inner tube 2 makes the conduction of transverse torsion unable to be continuous, and the continuous conduction of transverse torsion between different materials is consumed, and the horizontal rib column 51 is installed on the bottom layer of the horizontal rib 5, which can improve the vertical torsion-resistant and bending-resistant ability of the reinforcing inner tube 2 when the reinforcing inner tube 2 is subjected to vertical torsion, thereby ensuring the transverse state torsion-resistant ability of the reinforcing inner tube 2.

[0033] Embodiment two: Based on embodiment one, in this embodiment, the torsion-resistant improvement effect of the reinforcing inner tube 2 is achieved through a composite structure, and if the locking of the composite structure is lacking in the implementation process of the composite structure, the rigidity of the composite structure inside the reinforcing inner tube 2 will be poor, so a composite locking part is arranged in this embodiment to avoid the above problems. The torsion-resistant locking unit of the locking of the inner tube of the drawbar also comprises a composite locking part, which comprises a horizontal rib column 51 and a vertical rib column 61, the horizontal rib column 51 is installed at the bottom of one group of horizontal ribs 5, the vertical rib column 61 is installed on one side of one group of vertical ribs 6, the top of the pull arm 8 and the bottom of the pull arm 8 are provided with a rib hole one 81, and the two sides of the pull arm 8 are provided with a rib hole two 82.

[0034] In this embodiment, the slotted processing inside the reinforcing inner tube 2 makes the conduction of transverse torsion unable to be continuous, and the continuous conduction of transverse torsion between different materials is consumed, and the horizontal rib column 51 is installed on the bottom layer of the horizontal rib 5, which can improve the vertical torsion-resistant and bending-resistant ability of the reinforcing inner tube 2 when the reinforcing inner tube 2 is subjected to vertical torsion, thereby ensuring the transverse state torsion-resistant ability of the reinforcing inner tube 2.

[0035] Working principle: The operator can install the pull rod structure on the steering structure of the vehicle body through the installation inner bushing 4 arranged in the inner cavity of the pull rod ball head 1, the installation inner bushing 4 can effectively reduce the wear of the steering structure and the inner cavity of the pull rod ball head 1, the outer cylinder 3 is wrapped on the surface of the inner cylinder 2, at the same time, the outer cylinder 3 is extended to the two ends of the inner cylinder 2, and the outer cylinder 3 is fixed to the outer end of the pull rod ball head 1, so as to form a double-wrapped structure, so as to improve the anti-torsion and anti-tearing ability of the inner and outer layers of the pull rod part, at the same time, the outer cylinder 3 is attached to the outer surface of the inner cylinder 2, which can effectively reduce the stability of the inner cavity structure of the inner cylinder 2, and further improve the anti-torsion ability of the inner cylinder 2. The installation inner cavity 21 in the inner cylinder 2 is provided with an inner locking ring 71, the inner locking ring 71 is located in the middle section area of the installation inner cavity 21, can effectively support the middle end inner cavity of the installation inner cavity 21, at the same time, the inner locking ring 71 is filled with a support inner column 7, the support inner column 7 is partially matched with the inner locking ring 71 to further improve the strength of the middle end inner cavity area of the installation inner cavity 21, the two ends of the support inner column 7 are extended to install a pull arm 8 through a buffer seat one 72, the pull arm 8 is locked and installed with the inner side wall of the installation inner cavity 21 through a buffer seat two 9, so that the inner locking ring 71, the pull arm 8 and the pull rod ball head 1 form an integral whole, and the support ability of the inner cylinder 2 is improved in multiple sections. When the inner cylinder 2 is subjected to a torsion force from the horizontal state, the horizontal rib plate 5 in the horizontal rib groove 22 in the installation inner cavity 21 can improve the horizontal torsion force that the inner cylinder 2 can withstand, at the same time, due to the slot processing in the inner cylinder 2, the conduction of the horizontal torsion force cannot be continuous, and the continuous conduction of the horizontal torsion force between different materials will be consumed, at the same time, the horizontal rib column 51 is installed on the bottom horizontal rib plate 5, which can improve the vertical anti-torsion and anti-bending ability of the inner cylinder 2 when it is subjected to a vertical torsion force, and ensure the horizontal state anti-torsion ability of the inner cylinder 2. When the inner cylinder 2 is subjected to a torsion force from the vertical state, the vertical rib plate 6 in the vertical rib groove 23 in the installation inner cavity 21 can improve the vertical torsion force that the inner cylinder 2 can withstand, at the same time, due to the slot processing in the inner cylinder 2, the conduction of the vertical torsion force cannot be continuous, and the continuous conduction of the vertical torsion force between different materials will be consumed, at the same time, the vertical rib column 61 is installed on the inner vertical rib plate 6, which can improve the vertical anti-torsion and anti-bending ability of the inner cylinder 2 when it is subjected to a horizontal torsion force, at the same time, the vertical anti-cracking plate 62 is installed between the adjacent vertical rib plates 6, which further improves the vertical state anti-torsion ability of the inner cylinder 2.

[0036] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An automobile steering rod structure, characterized in that: It comprises a tie rod ball head (1), a reinforced inner tube (2) and a reinforced outer tube (3), wherein the reinforced inner tube (2) is provided with an installation inner cavity (21), the tie rod ball head (1) is installed at both ends of the reinforced inner tube (2), the reinforced outer tube (3) is covered and installed on the surface of the reinforced inner tube (2), and the outer surface of the installation inner cavity (21) is provided with a ring-shaped array of through rib grooves; A tie rod inner tube anti-cracking composite support unit, the tie rod inner tube anti-cracking composite support unit being arranged in a central area inside the installation inner cavity (21) and being used to achieve anti-cracking support between the tie rod inner tube and the tie rod ball head (1); The pull rod inner tube locking anti-torsion locking unit is arranged in the inner cavity of the installation cavity (21) near the area of ​​the reinforced outer tube (3), and is used to improve the horizontal and vertical anti-torsion locking inside the pull rod inner tube while achieving the anti-cracking function of the pull rod inner tube.

2. The automobile steering rod structure according to claim 1, characterized in that: The pull rod inner tube anti-cracking composite support unit includes a central anti-cracking portion, and the central anti-cracking portion includes a built-in locking ring (71). The top surface of the built-in locking ring (71) and the bottom surface of the built-in locking ring (71) are both arc-shaped. The built-in locking ring (71) is installed in the central area inside the installation cavity (21). A supporting inner column (7) is additionally provided inside the built-in locking ring (71), and a buffer seat (72) is installed at both ends of the supporting inner column (7).

3. The automobile steering rod structure according to claim 2, characterized in that: The pull rod inner tube anti-cracking composite support unit also includes a side anti-cracking part, and the side anti-cracking part includes a pull arm (8), and the pull arm (8) is set into two groups. The two groups of pull arms (8) are symmetrically distributed at both ends of the support inner column (7). Buffer seat 2 (9) is symmetrically installed on both sides of the installation inner cavity (21), and the two ends of the pull arm (8) are respectively fixed to the buffer seat 1 (72) and the buffer seat 2 (9).

4. The automobile steering rod structure according to claim 3, characterized in that: The pull rod inner tube locking anti-torsion locking unit includes a transverse anti-torsion portion, and the transverse anti-torsion portion includes a transverse rib (5). The transverse rib (5) is arranged in multiple groups, and multiple groups of transverse rib grooves (22) are arranged inside the installation cavity (21). The multiple groups of transverse ribs (5) are installed at equal intervals inside the multiple groups of transverse rib grooves (22).

5. The automobile steering rod structure according to claim 4, characterized in that: The pull rod inner tube locking anti-torsion locking unit also includes a vertical anti-torsion portion, and the vertical anti-torsion portion includes vertical ribs (6). The vertical ribs (6) are arranged in multiple groups, and multiple groups of vertical rib grooves (23) are arranged inside the installation cavity (21). The multiple groups of vertical ribs (6) are installed at equal intervals inside the multiple groups of vertical rib grooves (23), and a vertical rib column (61) is installed on one side of a group of vertical ribs (6).

6. The automobile steering rod structure according to claim 1, characterized in that: The pull rod inner tube locking anti-torsion locking unit also includes a composite locking portion, which includes a transverse rib column (51) and a vertical rib column (61). The transverse rib column (51) is installed at the bottom of a group of transverse rib plates (5), and the vertical rib column (61) is installed on one side of a group of vertical rib plates (6). Rib hole 1 (81) is provided at the top of the pull arm (8) and the bottom of the pull arm (8), and rib hole 2 (82) is provided on both sides of the pull arm (8).

7. The automobile steering rod structure according to claim 1, characterized in that: A vertical anti-crack plate (62) is provided between adjacent vertical rib plates (6).

8. The automobile steering rod structure according to claim 4, characterized in that: A reinforcing block (73) is installed on the inner side of the buffer seat (72), and one side of the reinforcing block (73) is in contact with one end of the pulling arm (8).

9. The automobile steering rod structure according to claim 1, characterized in that: A reinforcing block (73) is also installed on the inner side of the second buffer seat (9), and one side of the reinforcing block (73) is in contact with the other end of the pulling arm (8).

10. The automobile steering rod structure according to claim 1, characterized in that: The inner cavity of the tie rod ball head (1) is provided with a mounting inner bushing (4).

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