High-safety automobile steering pull rod

Abstract

The high-safety automobile steering pull rod comprises an outer rod body, the two ends of the outer rod body are in threaded connection with fixing bases, the circumferential inner walls of the fixing bases are in threaded connection with threaded rods, one ends of the threaded rods are fixedly connected with ball cups, the outer walls of the threaded rods are sleeved with locking rings, and the locking rings are fixedly connected with the ball cups. The locking ring abuts against the outer wall of one end of the fixing base through a ball cup at one end of the threaded rod, a reinforcing cavity is formed in the outer rod body, and an inner supporting assembly is arranged in the outer rod body. By the adoption of the inner supporting assembly, the outer rod body can be well supported, the strength of the outer rod body is further improved under the condition that the light weight of the outer rod body is guaranteed, and therefore the whole steering pull rod is not prone to cracking or damage fracture after being used for a long time, and the service life of the steering pull rod is prolonged. And the safety of the whole steering pull rod is effectively improved.

Description

Technical Field

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

[0002] The steering tie rod is an important part of the automobile steering mechanism, which directly affects the stability of automobile handling, the safety of operation and the service life of tires. The steering tie rod is divided into two categories, namely the steering tie rod and the steering tie rod. The steering tie rod is responsible for transmitting the movement of the steering rocker arm to the steering knuckle arm; the steering tie rod is the bottom edge of the steering trapezoidal mechanism and is a key component to ensure the correct movement relationship between the left and right steering wheels.

[0003] Since the steering tie rod is responsible for transmitting the movement of the steering rocker arm to the steering knuckle arm, when the driving cycle of the car is too long or the driving road is mostly bumpy, it is easy for the steering tie rod to bear a greater impact force, especially the area where the ball head seats at both ends of the steering tie rod are connected is subjected to greater force, which can easily cause cracks or even breakage in the steering tie rod. If the steering tie rod breaks when the vehicle is driving, it will pose a high safety hazard. Therefore, a high-safety automobile steering tie rod is proposed to improve the above problem. Summary of the invention

[0004] In view of 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, the steering rod is likely to bear a greater impact force, especially the area where the ball head seats at both ends of the steering rod are connected is subject to greater force, which can easily cause cracks or even breakage in the steering rod. If the steering rod breaks while the vehicle is driving, it will pose a high safety hazard.

[0005] In order to solve the above problems, the present invention provides a high-safety automobile steering tie 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, and 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, and a reinforcement cavity is arranged inside the outer rod body; An inner support assembly is arranged inside the outer rod body; Both ends of the outer rod body close to the ball head seat are provided with reinforcement components; The inner support assembly includes an inner rod arranged inside the reinforcement cavity, the circumferential outer wall of the inner rod is fixedly connected with reinforcement columns distributed in a circle at equal distances, the end of the reinforcement column away from the inner rod is fixedly connected with an inner reinforcement tube, and the circumferential outer wall of the inner reinforcement tube is tightly pressed against the circumferential inner wall of the reinforcement cavity.

[0006] In the above, the wall thickness of the inner reinforcement tube gradually increases along the two ends and the middle part close to the ball head seat.

[0007] As a further supplement to the present application, while ensuring the lightweight of the entire inner support assembly, the reinforcement effect of the outer rod body is also improved, meeting people's demand for the safety of the steering rod during long-term use.

[0008] As another improvement of the present application, a reinforcement seat is fixedly connected to the inside of the reinforcement cavity, a first threaded groove is opened on one side of the reinforcement seat, one end of the fixed seat is pressed against the end of the reinforcement seat, one end of the inner rod is fixedly connected to a first end head, the first end head is fixedly connected to the reinforcement seat via the first threaded groove, another end of the fixed seat is fixedly connected to a positioning head, the end of the inner rod away from the first end head is fixedly connected to a second end head, a rotation groove is opened inside the second end head, and the positioning head is rotatably connected inside the rotation groove.

[0009] As another improved supplement of the present application, the inner rod can be quickly installed, and both ends of the inner rod can be stably fixed in the reinforcement cavity opened inside the outer rod body.

[0010] As another improvement of the present application, the reinforcement assembly includes an outer reinforcement cylinder arranged on the outside of the outer rod body, the outer reinforcement cylinder is arranged at both ends of the outer rod body, the circumferential outer wall of the outer rod body is provided with an annular groove, 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 arranged inside the outer reinforcement cylinder, the circumferential outer wall of the arc-shaped plate is fixedly connected with springs distributed in a circular shape at equal distances, one end of the spring away from the arc-shaped plate is fixedly connected to the circumferential inner wall of the outer reinforcement cylinder, a hollow cavity is provided inside the outer reinforcement cylinder, and the hollow cavities are distributed in a circular shape at equal distances inside the outer reinforcement cylinder, the outer walls of both ends of the outer reinforcement cylinder are fixedly connected with positioning cylinders, the circumferential inner wall of the positioning cylinder is tightly attached to the circumferential outer wall of the outer rod body, one end of the arc plate is fixedly connected with an extension plate, one end of the positioning cylinder is provided with a through groove, and the end of the extension plate away from the arc plate passes through the inside of the through groove.

[0011] As another improvement supplement of the present application, by arranging external reinforcement tubes at both ends of the outer rod body, external reinforcement of the outer rod body can be achieved. When the steering rod accidentally collides with a stone or other object while the vehicle is driving, the outer rod body can be well protected, thereby improving the collision capability of the outer rod body. At the same time, in conjunction with the internally reinforced inner support assembly, internal and external bidirectional reinforcement of the steering rod can be achieved, thereby effectively improving the strength and safety of the entire steering rod.

[0012] As another improvement of the present application, a threaded hole is provided on the circumferential outer wall of the positioning cylinder, and a fixing bolt is connected to the internal thread of the threaded hole. The positioning cylinder is fixedly connected to the circumferential outer wall of the outer rod body by the fixing bolt, and an end cap is fixedly connected to the top outer wall of the fixing bolt. A first gasket and a second gasket are provided at the bottom of the end cap, and the second gasket is stacked on the top of the first gasket. The top outer wall of the second gasket and the bottom outer wall of the first gasket are both provided with first teeth grooves distributed in a circular shape at equal distances, and the bottom outer wall of the second gasket is provided with second teeth grooves distributed in a circular shape at equal distances, and the first gasket and the second gasket cooperate with each other through the second teeth grooves.

[0013] As another improvement supplement of the present application, through the cooperation of the fixing bolt, the first gasket and the second gasket, not only can the positioning tube together with the outer reinforcement tube be fixed to the outer wall of the outer rod body, but the first gasket and the second gasket can cooperate with each other through the second tooth groove, so that the first gasket and the second gasket can be meshed, and the first tooth groove on the other side of the first gasket and the second gasket will be stuck in the screw groove of the fixing bolt, thereby realizing the locking of the fixing bolt, which can prevent the fixing bolt from loosening due to long-term bumps during driving of the vehicle, so that the positioning tube and the outer reinforcement tube can always be stably fixed on the outer wall of the outer rod body, thereby improving the safety of the entire steering rod.

[0014] In summary, after adopting the above structure, the present invention has the following advantages compared with the prior art: 1. The above-mentioned inner support assembly can provide good support for the outer rod body. Under the condition of ensuring the outer rod body is lightweight, 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 fractures in the case of long-term use, which effectively improves the safety of the entire steering tie rod. At the same time, the two ends of the steering tie rod close to the ball head seat bear greater impact force during operation, so the wall thickness of the inner reinforcement tube in the inner support assembly is gradually increased along the two ends and the middle part close to the ball head seat, thereby ensuring the lightweight of the entire inner support assembly while also improving the reinforcement effect of the outer rod body, meeting people's demand for the safety of the steering tie rod during long-term use; 2. By adopting the above-mentioned reinforcement assembly, by setting the outer reinforcement tube at both ends of the outer rod body, the outer rod body can be reinforced externally. When the steering rod accidentally collides with a stone or other object during vehicle driving, the outer rod body can be well protected, and the collision resistance of the outer rod body is improved. At the same time, in combination with the internal reinforcement inner support assembly, the steering rod can be reinforced internally and externally in both directions, effectively improving the strength and safety of the entire steering rod; 3. The above-mentioned fixing bolts, first gaskets and second gaskets are used in combination, which can not only fix the positioning tube together with the outer reinforcement tube on the outer wall of the outer rod body, but also the first gasket and the second gasket cooperate with each other through the second tooth groove, so that the first gasket and the second gasket can be meshed, and the first tooth grooves on the other sides of the first gasket and the second gasket will be clamped in the screw groove of the fixing bolt, thereby realizing the locking of the fixing bolt, which can prevent the fixing bolt from loosening due to long-term bumps during driving of the vehicle, so that the positioning tube and the outer reinforcement tube can always be stably fixed on the outer wall of the outer rod body, thereby improving the safety of the entire steering rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the first implementation method of the present application; Figure 2 This is a schematic cross-sectional plan view of the first embodiment of the present application; Figure 3 This is the first implementation method of this application Figure 2 A schematic diagram of the enlarged structure at A in the middle; Figure 4 This is a cross-sectional structural schematic diagram of the first embodiment of the present application; Figure 5 This is the first implementation method of this application Figure 4 A schematic diagram of the enlarged structure at B in the middle; Figure 6 This is a schematic diagram of the split structure of the outer rod end of the first embodiment of the present application; Figure 7 This is the first implementation method of this application Figure 6 Schematic diagram of the enlarged structure at C in the middle; Figure 8 This is a schematic diagram of a half-section structure of an outer reinforcement tube according to the first embodiment of the present application; Fig. 9 This is the first implementation method of this application Figure 8 Schematic diagram of the enlarged structure at D in the middle; Fig.10 This is a schematic diagram of the first gasket and the second gasket structure of the second embodiment of the present application.

[0016] Description of the numbers in the figure: 1. Outer rod body; 2. Outer reinforcement tube; 3. Ball head seat; 4. Extension plate; 5. Through groove; 6. Locking ring; 7. Fixed seat; 8. Inner rod; 9. Inner reinforcement tube; 10. Reinforcement column; 11. Spring; 12. Arc plate; 13. Annular groove; 14. Reinforcement seat; 15. First end; 16. Threaded rod; 17. Positioning tube; 18. First threaded groove; 19. Second end; 20. End cap; 21. Hollow cavity; 22. Threaded hole; 23. Fixing bolt; 24. First gasket; 25. Second gasket; 26. First tooth groove; 27. Second tooth groove; 28. Positioning head. DETAILED DESCRIPTION

[0017] The following describes two implementation modes of the present application in detail with reference to the accompanying drawings.

[0018] The first implementation method: The present invention provides a high-safety automobile steering tie rod, see Figure 1 - Fig.10 , comprising 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, and 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 arranged 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 includes an inner rod 8 disposed inside the reinforcement cavity, and the circumferential outer wall of the inner rod 8 is fixedly connected with reinforcement columns 10 distributed in a circle at equal distances, and the end of the reinforcement column 10 away from the inner rod 8 is fixedly connected with an inner reinforcement tube 9, and the circumferential outer wall of the inner reinforcement tube 9 is tightly pressed against the circumferential inner wall of the reinforcement cavity, such as Figure 2 - Figure 6 As shown, by arranging an inner support assembly in the reinforcement cavity inside the outer rod body 1, a good supporting effect can be provided to 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 rod is not prone to cracks or damage and breakage during long-term use, thereby effectively improving the safety of the entire steering rod.

[0019] In the present invention, the wall thickness of the inner reinforcement tube 9 gradually increases along the two ends and the middle part close to the ball head seat 3, such as Figure 2 As shown, while ensuring the lightweight of the entire inner support assembly, the reinforcement effect on the outer rod body 1 is also improved, meeting people's demand for safety of the steering rod during long-term use.

[0020] In the present invention, 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 fixed seat 7 is pressed against the end of the reinforcing seat 14, one end of the inner rod 8 is fixedly connected to the first end head 15, the first end head 15 is fixedly connected to the reinforcing seat 14 through the first thread groove 18, one end of the other fixed seat 7 is fixedly connected to the positioning head 28, the end of the inner rod 8 away from the first end head 15 is fixedly connected to the second end head 19, a rotating groove is provided inside the second end head 19, and the positioning head 28 is rotatably connected inside the rotating groove, such as Figure 2 - Figure 3 As shown, the inner rod 8 can be quickly installed, and both ends of the inner rod 8 can be stably fixed in the reinforcement cavity opened inside the outer rod body 1.

[0021] In the present invention, the reinforcement assembly includes 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 outer circumferential outer wall of the outer rod body 1 is provided with an annular groove 13, the inner part of the annular groove 13 is clamped with an arc plate 12, the number of the arc plates 12 is four groups, and the four groups of arc plates 12 are arranged inside the outer reinforcement tube 2. The outer circumferential outer wall of the arc plate 12 is fixedly connected with springs 11 distributed in a circular shape at equal distances, and one end of the spring 11 away from the arc plate 12 is fixedly connected On the circumferential inner wall of the outer reinforcement tube 2, a hollow cavity 21 is arranged inside the outer reinforcement tube 2, and the hollow cavity 21 is distributed in an equidistant circle inside the outer reinforcement tube 2. The outer walls at both ends of the outer reinforcement tube 2 are fixedly connected with positioning tubes 17, and the circumferential inner wall of the positioning tube 17 is closely attached to the circumferential outer wall of the outer rod body 1. One end of the arc plate 12 is fixedly connected with an extension plate 4, and one end of the positioning tube 17 is provided with a through groove 5, and the end of the extension plate 4 away from the arc plate 12 passes through the inside of the through groove 5, such as Figure 6 - Figure 7 As shown, by arranging the outer reinforcing tube 2 at both ends of the outer rod body 1, the outer rod body 1 can be reinforced externally. When the steering rod accidentally collides with a stone or other object during vehicle driving, the outer rod body 1 can be well protected, thereby improving the collision capability of the outer rod body 1. At the same time, in conjunction with the internally reinforced inner support assembly, the steering rod can be reinforced internally and externally in a two-way manner, thereby effectively improving the strength and safety of the entire steering rod.

[0022] In summary, the working principle of the first embodiment is that by arranging the inner support assembly in the reinforcement cavity inside the outer rod body 1, the outer rod body 1 can be well supported. 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 rod is not prone to cracks or damage and fractures in the case of long-term use, which effectively improves the safety of the entire steering rod. At the same time, the impact force on the two ends of the steering rod close to the ball head seat 3 during operation is greater, so the wall thickness of the inner reinforcement tube 9 in the inner support assembly gradually increases along the two ends and the middle part close to the ball head seat 3. The outer rod body 1 is reinforced while the outer rod body 1 is reinforced, thereby ensuring the lightweight of the entire inner support assembly, and meeting people's requirements for the safety of the steering rod during long-term use. At the same time, by arranging the outer reinforcement tube 2 at both ends of the outer rod body 1, the outer rod body 1 can be reinforced externally. When the steering rod accidentally collides with a stone or other object while the vehicle is driving, the outer rod body 1 can be well protected, thereby improving the collision capability of the outer rod body 1. At the same time, in conjunction with the internally reinforced inner support assembly, the steering rod can be reinforced internally and externally in a two-way manner, thereby effectively improving the strength and safety of the entire steering rod.

[0023] Second implementation method: This embodiment adds the following structure on the basis of embodiment 1, and the specific configuration is as follows: Fig.10 As shown, a threaded hole 22 is provided on the circumferential outer wall of the positioning cylinder 17, and a fixing bolt 23 is connected to the internal thread of 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, and the top outer wall of the fixing bolt 23 is fixedly connected to the end cap 20. The bottom of the end cap 20 is provided with a first gasket 24 and a second gasket 25. The second gasket 25 is stacked on the 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, and 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 cooperate with each other through the second tooth grooves 27 By cooperating with the fixing bolt 23, the first gasket 24 and the second gasket 25, not only can the positioning tube 17 and the outer reinforcement tube 2 be fixed to the outer wall of the outer rod body 1, but the first gasket 24 and the second gasket 25 can cooperate with each other through the second tooth groove 27, so that the first gasket 24 and the second gasket 25 can be meshed, and the first tooth groove 26 on the other side of the first gasket 24 and the second gasket 25 will be clamped in the screw groove of the fixing bolt 23, thereby locking the fixing bolt 23, and preventing the fixing bolt 23 from loosening due to long-term bumps during driving of the vehicle, so that the positioning tube 17 and the outer reinforcement tube 2 can always be stably fixed to the outer wall of the outer rod body 1, thereby improving the safety of the entire steering rod.

[0024] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection 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, and one end of the reinforcement column (10) away from the inner rod (8) is fixedly connected to an inner reinforcement tube (9), and the circumferential outer wall of the inner reinforcement tube (9) is tightly pressed against the circumferential inner wall of the reinforcement cavity.

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 1, 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: The reinforcement assembly comprises an outer reinforcement tube (2) arranged outside the outer rod body (1), the outer reinforcement tube (2) being arranged at both ends of the outer rod body (1), an annular groove (13) being provided on the circumferential outer wall of the outer rod body (1), an arc-shaped plate (12) being clamped inside the annular groove (13), the number of the arc-shaped plates (12) being four groups, the four groups of the arc-shaped plates (12) being arranged inside the outer reinforcement tube (2), the circumferential outer wall of the arc-shaped plate (12) being fixedly connected to springs (11) distributed in a circular shape at equal distances, and one end of the spring (11) away from the arc-shaped plate (12) being fixedly connected to the circumferential inner wall of the outer reinforcement tube (2).

6. A high-safety automobile steering tie rod according to claim 5, characterized in that: The outer reinforcement cylinder (2) is provided with hollow cavities (21) inside, and the hollow cavities (21) are distributed in a circular shape with equal distances inside the outer reinforcement cylinder (2).

7. A high-safety automobile steering tie rod according to claim 6, characterized in that: The outer walls at both ends of the outer reinforcing cylinder (2) are fixedly connected to positioning cylinders (17), and the circumferential inner wall of the positioning cylinder (17) is tightly attached to the circumferential outer wall of the outer rod body (1).

8. A high-safety automobile steering tie rod according to claim 7, characterized in that: One end of the arc-shaped plate (12) is fixedly connected to an extension plate (4), one end of the positioning tube (17) is provided with a through slot (5), and one end of the extension plate (4) away from the arc-shaped plate (12) passes through the interior of the through slot (5).

9. A high-safety automobile steering tie rod according to claim 8, 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).

10. A high-safety automobile steering tie rod according to claim 9, 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).

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