A high-security automotive steering tie rod

Abstract

The present invention relates to a highly safe automotive steering tie rod applied to the field of automotive steering parts, including an outer rod body. Both ends of the outer rod body are threadedly connected with fixing seats. The inner circumferential wall of the fixing seat is threadedly connected with a threaded rod. One end of the threaded rod is fixedly connected with a ball head seat. A locking ring is sleeved on the outer wall of the threaded rod. 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 strengthening cavity is arranged inside the outer rod body, and an inner support assembly is arranged inside the outer rod body. By adopting the above inner support assembly, it can play a good supporting role for the outer rod body. Under the condition of ensuring the light weight of the outer rod body, the strength of the outer rod body is further improved, so that the whole steering tie rod is not prone to cracks or damage and fracture during long-term use, effectively improving the safety of the whole steering tie rod.

Description

Technical Field

[0001] The present invention relates to an automotive steering tie rod, in particular to a high - safety automotive steering tie rod applied to the field of automotive steering parts. Background Art

[0002] The steering tie rod is an important part in the automotive steering mechanism, which directly affects the stability of vehicle steering, the running safety and the service life of tires. The steering tie rod is divided into two categories, namely the straight steering tie rod and the cross steering tie rod. The straight steering tie rod undertakes the task of transmitting the movement of the steering rocker arm to the steering knuckle arm; the cross steering tie rod is the bottom side of the steering trapezoid mechanism and is a key component to ensure the correct movement relationship between the left and right steering wheels.

[0003] Since the straight steering tie rod undertakes the task of transmitting the movement of the steering rocker arm to the steering knuckle arm, when the driving cycle of the vehicle is too long or the driving road surface is mostly bumpy, it is easy to cause the steering tie rod to bear greater impact force, especially the area where the two ends of the steering tie rod are connected to the ball seat is more stressed, which is likely to cause cracks or even fractures in the steering tie rod. If the steering tie rod breaks during vehicle driving, it will pose a high safety hazard. Therefore, a high - safety automotive steering tie rod is proposed to solve the above problems. Summary of the Invention

[0004] Aiming at the above - mentioned prior art, the technical problem to be solved by the present invention is that when the driving cycle of the vehicle is too long or the driving road surface is mostly bumpy, it is easy to cause the steering tie rod to bear greater impact force, especially the area where the two ends of the steering tie rod are connected to the ball seat is more stressed, which is likely to cause cracks or even fractures in the steering tie rod. If the steering tie rod breaks during vehicle driving, it will pose a high safety hazard.

[0005] To solve the above problems, the present invention provides a high - safety automotive steering tie rod, which includes an outer rod body. Fixed seats are thread - connected to both ends of the outer rod body. A threaded rod is thread - connected to the circumferential inner wall of the fixed seat, and one end of the threaded rod is fixedly connected to a ball seat;

[0006] A locking ring is sleeved on the outer wall of the threaded rod. The ball seat at one end of the threaded rod presses the locking ring against the outer wall of one end of the fixed seat. A strengthening cavity is arranged inside the outer rod body;

[0007] An inner support assembly is arranged inside the outer rod body;

[0008] Reinforcing components are arranged at both ends of the outer rod body close to the ball seats;

[0009] The inner support assembly includes an inner rod disposed inside the reinforcement cavity. The outer circumferential wall of the inner rod is fixedly connected with reinforcing columns that are circularly distributed at equal intervals. One end of the reinforcing column away from the inner rod is fixedly connected with an inner reinforcing cylinder, and the outer circumferential wall of the inner reinforcing cylinder abuts against the inner circumferential wall of the reinforcement cavity.

[0010] In the above, the wall thickness of the inner reinforcing cylinder gradually increases along both ends and the middle close to the ball head seat.

[0011] As a further supplement to this application, while ensuring the lightweight of the entire inner support assembly, it also improves the reinforcement effect on the outer rod body, meeting the safety requirements of people for the long-term use of the steering tie rod.

[0012] As another improvement of this application, a reinforcing seat is fixedly connected inside the reinforcement cavity. A first threaded groove is formed on one side of the reinforcing seat. One end of the fixed seat abuts against the end of the reinforcing seat. One end of the inner rod is fixedly connected with a first end head, and the first end head is fixedly connected with the reinforcing seat through the first threaded groove. One end of the other fixed seat is fixedly connected with a positioning head. One end of the inner rod away from the first end head is fixedly connected with a second end head, and a rotating groove is formed inside the second end head. The positioning head is rotatably connected inside the rotating groove.

[0013] As a supplementary improvement of this application, it can achieve the rapid installation of the inner rod, and at the same time, both ends of the inner rod can be stably fixed inside the reinforcement cavity opened in the outer rod body.

[0014] As another improvement of this application, the reinforcement assembly includes an outer reinforcing cylinder disposed outside the outer rod body. The outer reinforcing cylinder is disposed at both ends of the outer rod body. An annular groove is formed on the outer circumferential wall of the outer rod body, and an arc-shaped plate is clamped inside the annular groove. The number of the arc-shaped plates is four groups, and the four groups of arc-shaped plates are disposed inside the outer reinforcing cylinder. The outer circumferential wall of the arc-shaped plate is fixedly connected with springs that are circularly distributed at equal intervals. One end of the spring away from the arc-shaped plate is fixedly connected to the inner circumferential wall of the outer reinforcing cylinder. A hollow cavity is disposed inside the outer reinforcing cylinder, and the hollow cavities are circularly distributed at equal intervals inside the outer reinforcing cylinder. Both ends of the outer circumferential wall of the outer reinforcing cylinder are fixedly connected with positioning cylinders, and the inner circumferential wall of the positioning cylinder closely adheres to the outer circumferential wall of the outer rod body. One end of the arc-shaped plate is fixedly connected with an extension plate, and a through groove is formed at one end of the positioning cylinder. One end of the extension plate away from the arc-shaped plate passes through the inside of the through groove.

[0015] As a supplement to another improvement of the present application, by arranging the outer reinforcing cylinder at both ends of the outer rod body, external reinforcement of the outer rod body can be achieved. When the steering tie rod accidentally collides with a stone or other object during vehicle driving, it can play a good protective effect on the outer rod body, improving the collision resistance of the outer rod body. At the same time, in cooperation with the inner support component for internal reinforcement, two-way internal and external reinforcement cooperation of the steering tie rod can be realized, effectively improving the strength and safety of the entire steering tie rod.

[0016] As another improvement of the present application, threaded holes are formed in the circumferential outer wall of the positioning cylinder. A fixing bolt is threadedly connected inside the threaded holes. The positioning cylinder is fixedly connected to the circumferential outer wall of the outer rod body through the fixing bolt. A end cap is fixedly connected to the top outer wall of the fixing bolt. A first gasket and a second gasket are arranged at the bottom of the end cap. The second gasket is stacked on the top of the first gasket. First tooth grooves are formed in the top outer wall and the bottom outer wall of the second gasket and the first gasket in an equidistant circular distribution. Second tooth grooves are formed in the bottom outer wall of the second gasket in an equidistant circular distribution. The first gasket and the second gasket are matched through the second tooth grooves.

[0017] As a supplement to another improvement of the present application, through the cooperation of the fixing bolt, the first gasket and the second gasket, not only can the positioning cylinder together with the outer reinforcing cylinder be fixed on the outer wall of the outer rod body, but also the first gasket and the second gasket can be meshed through the cooperation of the second tooth grooves. And the first tooth grooves on the other side of the first gasket and the second gasket will be clamped in the thread groove of the fixing bolt, realizing the locking of the fixing bolt, which can avoid the loosening of the fixing bolt caused by long-term jolting during vehicle driving, so that the positioning cylinder and the outer reinforcing cylinder can always be stably fixed on the outer wall of the outer rod body, improving the safety of the entire steering tie rod.

[0018] In summary, after adopting the above structure, compared with the prior art, the present invention has the following advantages:

[0019] 1. By adopting the above-mentioned inner support component, it can play a good supporting role on the outer rod body. Under the condition of ensuring the light weight of the outer rod body, the strength of the outer rod body is further improved, so that the entire steering tie rod is not prone to cracks or damage and fracture during long-term use, effectively improving the safety of the entire steering tie rod. At the same time, during the working process of the steering tie rod, the impact force on both ends close to the ball head seat is greater. Therefore, the wall thickness of the inner reinforcing cylinder in the inner support component gradually increases along both ends and the middle close to the ball head seat, thereby improving the reinforcement effect on the outer rod body while ensuring the light weight of the entire inner support component, meeting the safety requirements of people for the long-term use of the steering tie rod;

[0020] 2. By adopting the above-mentioned strengthening components and arranging the outer strengthening cylinder at both ends of the outer rod body, the external reinforcement of the outer rod body can be achieved. When the steering tie rod accidentally collides with a stone or other object during vehicle driving, it can play a good protective effect on the outer rod body, improve the collision resistance of the outer rod body. At the same time, in cooperation with the inner support components for internal reinforcement, the internal and external two-way reinforcement cooperation of the steering tie rod can be realized, effectively improving the strength and safety of the entire steering tie rod.

[0021] 3. By using the above-mentioned fixing bolt, first gasket and second gasket in cooperation, not only can the positioning cylinder together with the outer strengthening cylinder be fixed on the outer wall of the outer rod body, but also the first gasket and the second gasket can be meshed through the second tooth groove. And the first tooth groove on the other side of the first gasket and the second gasket will be clamped in the thread groove of the fixing bolt, realizing the locking of the fixing bolt, which can avoid the loosening of the fixing bolt caused by long-term bumping during vehicle driving, so that the positioning cylinder and the outer strengthening cylinder can always be stably fixed on the outer wall of the outer rod body, improving the safety of the entire steering tie rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present application;

[0023] Figure 2 It is a schematic diagram of the sectional plane structure of the first embodiment of the present application;

[0024] Figure 3 For the first embodiment of the present application Figure 2 The enlarged schematic diagram of part A in;

[0025] Figure 4 It is a schematic diagram of the sectional structure of the first embodiment of the present application;

[0026] Figure 5 For the first embodiment of the present application Figure 4 The enlarged schematic diagram of part B in;

[0027] Figure 6 It is a schematic diagram of the split structure of the end part of the outer rod body of the first embodiment of the present application;

[0028] Figure 7 For the first embodiment of the present application Figure 6 The enlarged schematic diagram of part C in;

[0029] Figure 8 It is a schematic diagram of the half-sectional structure of the outer strengthening cylinder of the first embodiment of the present application;

[0030] Figure 9 For the first embodiment of the present application Figure 8 The enlarged schematic diagram of part D in;

[0031] Figure 10 Schematic diagram of the first gasket and the second gasket of the second embodiment of the present application.

[0032] Description of the reference numerals in the figure:

[0033] 1. Outer rod body; 2. Outer reinforcing cylinder; 3. Ball head seat; 4. Extension plate; 5. Through groove; 6. Locking ring; 7. Fixed seat; 8. Inner rod; 9. Inner reinforcing cylinder; 10. Reinforcing column; 11. Spring; 12. Arc plate; 13. Annular groove; 14. Reinforcing seat; 15. First end; 16. Threaded rod; 17. Positioning cylinder; 18. First thread groove; 19. Second end; 20. End cap; 21. Hollow cavity; 22. Threaded hole; 23. Fixed bolt; 24. First gasket; 25. Second gasket; 26. First tooth groove; 27. Second tooth groove; 28. Positioning head. Specific embodiments

[0034] The following will describe in detail the two embodiments of the present application with reference to the accompanying drawings.

[0035] The first embodiment:

[0036] The present invention provides a high - safety vehicle steering tie rod. Please refer to Figure 1 - Figure 10 , including an outer rod body 1. Fixed seats 7 are thread - connected to both ends of the outer rod body 1. A threaded rod 16 is thread - connected to the circumferential inner wall of the fixed seat 7. One end of the threaded rod 16 is fixedly connected to a ball head seat 3;

[0037] A locking ring 6 is sleeved on the outer wall of the threaded rod 16. The ball head seat 3 at one end of the threaded rod 16 presses the locking ring 6 against the outer wall of one end of the fixed seat 7. A reinforcing cavity is arranged inside the outer rod body 1;

[0038] An inner support assembly is arranged inside the outer rod body 1;

[0039] Reinforcing assemblies are arranged at both ends of the outer rod body 1 close to the ball head seat 3;

[0040] The inner support assembly includes an inner rod 8 arranged inside the reinforcing cavity. Equally - spaced and circularly - distributed reinforcing columns 10 are fixedly connected to the circumferential outer wall of the inner rod 8. One end of the reinforcing column 10 far from the inner rod 8 is fixedly connected to an inner reinforcing cylinder 9. The circumferential outer wall of the inner reinforcing cylinder 9 presses against the circumferential inner wall of the reinforcing cavity, as shown in Figure 2 - Figure 6As shown, by arranging an inner support assembly inside the reinforcement cavity within the outer rod body 1, it is possible to provide good support for the outer rod body 1. Under the condition of ensuring the lightweight of the outer rod body 1, the strength of the outer rod body 1 is further improved, so that the entire steering tie rod is not prone to cracks or damage fractures during long-term use, effectively enhancing the safety of the entire steering tie rod.

[0041] In the present invention, the wall thickness of the inner reinforcement cylinder 9 gradually increases along the two ends and the middle close to the ball head seat 3, as Figure 2 shown. While ensuring the lightweight of the entire inner support assembly, it also improves the reinforcement effect on the outer rod body 1, meeting the safety requirements of people for the steering tie rod during long-term use.

[0042] In the present invention, a reinforcement seat 14 is fixedly connected inside the reinforcement cavity. A first threaded groove 18 is provided on one side of the reinforcement seat 14. One end of the fixed seat 7 abuts against the end of the reinforcement seat 14. One end of the inner rod 8 is fixedly connected with a first end head 15. The first end head 15 is fixedly connected with the reinforcement seat 14 through the first threaded groove 18. One end of the other fixed seat 7 is fixedly connected with a positioning head 28. The end of the inner rod 8 far from the first end head 15 is fixedly connected with a second end head 19. A rotating groove is provided inside the second end head 19. The positioning head 28 is rotatably connected inside the rotating groove, as Figure 2 - Figure 3 shown. It can achieve the rapid installation of the inner rod 8, and at the same time, both ends of the inner rod 8 can be stably fixed inside the reinforcement cavity opened in the outer rod body 1.

[0043] In the present invention, the reinforcement assembly includes an outer reinforcement cylinder 2 arranged outside the outer rod body 1. The outer reinforcement cylinder 2 is arranged at both ends of the outer rod body 1. An annular groove 13 is provided on the circumferential outer wall of the outer rod body 1. An arc-shaped plate 12 is clamped inside the annular groove 13. The number of arc-shaped plates 12 is four groups. The four groups of arc-shaped plates 12 are arranged inside the outer reinforcement cylinder 2. Equally spaced and circularly distributed springs 11 are fixedly connected to the circumferential outer wall of the arc-shaped plate 12. The end of the spring 11 far from the arc-shaped plate 12 is fixedly connected to the circumferential inner wall of the outer reinforcement cylinder 2. A hollow cavity 21 is provided inside the outer reinforcement cylinder 2. The hollow cavity 21 is equally spaced and circularly distributed inside the outer reinforcement cylinder 2. Positioning cylinders 17 are fixedly connected to the outer walls at both ends of the outer reinforcement cylinder 2. The circumferential inner wall of the positioning cylinder 17 closely adheres to the circumferential outer wall of the outer rod body 1. One end of the arc-shaped plate 12 is fixedly connected with an extension plate 4. A through groove 5 is provided at one end of the positioning cylinder 17. The end of the extension plate 4 far from the arc-shaped plate 12 passes through the inside of the through groove 5, as Figure 6 - Figure 7As shown in the figure, by arranging the external reinforcing cylinder 2 at both ends of the outer rod body 1, external reinforcement of the outer rod body 1 can be achieved. When the steering tie rod accidentally collides with a rock or other object during vehicle driving, it can play a good protective effect on the outer rod body 1, improving the collision resistance of the outer rod body 1. At the same time, in cooperation with the internally reinforced inner support assembly, two-way internal and external reinforcement of the steering tie rod can be realized, effectively improving the strength and safety of the entire steering tie rod.

[0044] To sum up: The working principle of the first implementation mode: By arranging the inner support assembly in the reinforcing cavity inside the outer rod body 1, a good supporting effect on the outer rod body 1 can be achieved. Under the condition of ensuring the light weight of the outer rod body 1, the strength of the outer rod body 1 is further improved, so that the entire steering tie rod is not prone to cracks or damage and fracture during long-term use, effectively improving the safety of the entire steering tie rod. At the same time, during the working process of the steering tie rod, the impact force borne at both ends close to the ball head seat 3 is greater. Therefore, the wall thickness of the inner reinforcing cylinder 9 in the inner support assembly gradually increases along both ends and the middle close to the ball head seat 3, thereby improving the reinforcement effect on the outer rod body 1 while ensuring the light weight of the entire inner support assembly, meeting the safety requirements of people for the long-term use of the steering tie rod. At the same time, by arranging the external reinforcing cylinder 2 at both ends of the outer rod body 1, external reinforcement of the outer rod body 1 can be achieved. When the steering tie rod accidentally collides with a rock or other object during vehicle driving, it can play a good protective effect on the outer rod body 1, improving the collision resistance of the outer rod body 1. At the same time, in cooperation with the internally reinforced inner support assembly, two-way internal and external reinforcement of the steering tie rod can be realized, effectively improving the strength and safety of the entire steering tie rod.

[0045] The second implementation mode:

[0046] On the basis of the first implementation mode, the following structure is added in this implementation mode, and the specific settings are as follows: As Figure 10As shown, threaded holes 22 are provided on the circumferential outer wall of the positioning cylinder 17. A fixing bolt 23 is threadedly connected inside the threaded hole 22. The positioning cylinder 17 is fixedly connected to the circumferential outer wall of the outer rod body 1 through the fixing bolt 23. A end cap 20 is fixedly connected to the top outer wall of the fixing bolt 23. A first gasket 24 and a second gasket 25 are arranged at the bottom of the end cap 20. The second gasket 25 is stacked on top of the first gasket 24. First tooth grooves 26 are provided at equal distances and in a circular distribution on the top outer wall of the second gasket 25 and the bottom outer wall of the first gasket 24. Second tooth grooves 27 are provided at equal distances and in a circular distribution on the bottom outer wall of the second gasket 25. The first gasket 24 and the second gasket 25 are matched through the second tooth grooves 27. Through the cooperation of the fixing bolt 23, the first gasket 24 and the second gasket 25, not only can the positioning cylinder 17 together with the outer reinforcing cylinder 2 be fixed on the outer wall of the outer rod body 1, but also the first gasket 24 and the second gasket 25 can be meshed through the cooperation of the second tooth grooves 27. And the first tooth grooves 26 on the other side of the first gasket 24 and the second gasket 25 will be clamped in the thread groove of the fixing bolt 23, realizing the locking of the fixing bolt 23, which can avoid the loosening of the fixing bolt 23 caused by long-term jolting during the vehicle driving, so that the positioning cylinder 17 and the outer reinforcing cylinder 2 can always be stably fixed on the outer wall of the outer rod body 1, improving the safety of the entire steering tie rod.

[0047] Combined with the current actual requirements, the above-mentioned implementation manner adopted in this application, the protection scope is not limited to this. Within the knowledge scope of those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A high-safety automobile steering rod, characterized in that: It comprises an outer rod body (1), both ends of the outer rod body (1) are threadedly connected to a fixing seat (7), a threaded rod (16) is threadedly connected to the circumferential inner wall of the fixing seat (7), and one end of the threaded rod (16) is fixedly connected to a ball head seat (3); The outer wall of the threaded rod (16) is sleeved with a locking ring (6), the ball head seat (3) at one end of the threaded rod (16) presses the locking ring (6) against the outer wall of one end of the fixing seat (7), and a reinforcement cavity is provided inside the outer rod body (1); An inner support assembly is arranged inside the outer rod body (1); Both ends of the outer rod body (1) close to the ball head seat (3) are provided with reinforcement components; The inner support assembly comprises an inner rod (8) arranged inside the reinforcement cavity, the circumferential outer wall of the inner rod (8) is fixedly connected to reinforcement columns (10) distributed in a circular shape at equal distances, the end of the reinforcement column (10) away from the inner rod (8) is fixedly connected to an inner reinforcement tube (9), the circumferential outer wall of the inner reinforcement tube (9) is tightly pressed against the circumferential inner wall of the reinforcement cavity, the reinforcement assembly comprises an outer reinforcement tube (2) arranged outside the outer rod body (1), the outer reinforcement tube (2) is arranged at both ends of the outer rod body (1), the circumferential outer wall of the outer rod body (1) is provided with an annular groove (13), the interior of the annular groove (13) is clamped with an arc plate (12), the number of the arc plates (12) is four groups, the four groups of arc plates (12) are arranged inside the outer reinforcement tube (2), the arc plates The outer wall of the outer rod (12) is fixedly connected to springs (11) which are distributed in a circular shape at equal distances. One end of the spring (11) which is away from the arc plate (12) is fixedly connected to the inner wall of the outer rod (2). A hollow cavity (21) is provided inside the outer rod (2). The hollow cavity (21) is distributed in a circular shape at equal distances inside the outer rod (2). Positioning cylinders (17) are fixedly connected to the outer walls of both ends of the outer rod (2). The inner wall of the positioning cylinder (17) is tightly attached to the outer wall of the outer rod (1). One end of the arc plate (12) is fixedly connected to an extension plate (4). One end of the positioning cylinder (17) is provided with a through groove (5). One end of the extension plate (4) which is away from the arc plate (12) passes through the inside of the through groove (5).

2. A high-safety automobile steering tie rod according to claim 1, characterized in that: The wall thickness of the inner reinforcement tube (9) gradually increases along the two ends and the middle portion close to the ball head seat (3).

3. A high-safety automobile steering tie rod according to claim 2, characterized in that: A reinforcing seat (14) is fixedly connected inside the reinforcing cavity, a first thread groove (18) is provided on one side of the reinforcing seat (14), one end of the fixing seat (7) is pressed against the end of the reinforcing seat (14), one end of the inner rod (8) is fixedly connected to a first end head (15), and the first end head (15) is fixedly connected to the reinforcing seat (14) via the first thread groove (18).

4. A high-safety automobile steering tie rod according to claim 3, characterized in that: One end of the other fixed seat (7) is fixedly connected to a positioning head (28), and one end of the inner rod (8) away from the first end (15) is fixedly connected to a second end (19), a rotation groove is provided inside the second end (19), and the positioning head (28) is rotatably connected inside the rotation groove.

5. A high-safety automobile steering tie rod according to claim 4, characterized in that: A threaded hole (22) is formed on the circumferential outer wall of the positioning tube (17); a fixing bolt (23) is connected to the inner thread of the threaded hole (22); the positioning tube (17) is fixedly connected to the circumferential outer wall of the outer rod body (1) via the fixing bolt (23); and an end cap (20) is fixedly connected to the top outer wall of the fixing bolt (23).

6. A high-safety automobile steering tie rod according to claim 5, characterized in that: A first gasket (24) and a second gasket (25) are provided at the bottom of the end cap (20); the second gasket (25) is stacked on top of the first gasket (24); the top outer wall of the second gasket (25) and the bottom outer wall of the first gasket (24) are both provided with first tooth grooves (26) distributed in a circular shape at equal distances; the bottom outer wall of the second gasket (25) is provided with second tooth grooves (27) distributed in a circular shape at equal distances; the first gasket (24) and the second gasket (25) are matched with each other via the second tooth grooves (27).

Images