Automobile ball head pull rod

Abstract

The utility model relates to the technical field of automobiles, and provides an automobile ball head pull rod which comprises a pull rod body, a ball head shell fixed to one end of the pull rod body, a movable cavity and a lubricating oil cavity, the movable cavity and the lubricating oil cavity are formed in the ball head shell, a supporting seat is arranged at the bottom of the movable cavity, and a pressing ring block is arranged at the top of the movable cavity in a sleeved mode. A ball body is arranged between the supporting base and the pressing ring block, and a pin rod is fixed to the top of the ball body. The push column can be pushed, the push column can push the fixing ring to move in the fixing column and compress the return spring, the piston plate is pushed by the push column to move in the lubricating oil cavity, lubricating oil in the lubricating oil cavity can be fed into the movable cavity through the through hole, and the lubricating oil can be used for lubricating the ball, the supporting base and the pressing ring block. And the elastic force can act on the fixing ring and the push column through the return spring, the push column and the piston plate can be restored to the initial position, and preparation is provided for next-time lubrication.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, specifically to automotive ball joint tie rods. Background Technology

[0002] The working principle of the ball joint of the steering tie rod is as follows: The tie rod with the ball joint housing is placed inside the ball joint housing. The ball joint is hinged to the edge of the shaft hole of the ball joint housing through the ball joint seat at its front end. The needle roller between the ball joint seat and the steering shaft is embedded in the groove of the inner hole surface of the ball joint seat.

[0003] In the prior art, in a car tie rod ball joint with publication number CN214788547U, this utility model discloses a car tie rod ball joint, including a tie rod, a ball joint housing, a dust cover, and a ball joint pin. The ball joint housing is located at both ends of the tie rod, the ball joint pin is hinged inside the ball joint housing, the dust cover is fixed at the outlet of the ball joint housing, the ball joint pin passes through the dust cover, an adjusting nut is provided on the ball joint pin, the adjusting nut is fixedly connected to the top of the dust cover, and a cover seat is provided at the bottom of the dust cover. The dust cover is snapped into the ball joint housing through the cover seat.

[0004] In conjunction with the above applications, the adjusting nut on a typical automotive tie rod ball joint allows for adjustment of the dust cover's installation position, facilitating its installation. The cover seat also limits the movement of the ball joint pin, enhancing the connection strength between the pin and the ball joint housing, resulting in a more secure dust cover installation. However, existing automotive tie rod ball joints have the following problems:

[0005] When the ball joint of a car tie rod rotates between itself and its housing, the frequent adjustment of the ball joint will increase the wear between them and make it difficult to provide lubrication.

[0006] To address the issues mentioned above, we offer automotive ball joint tie rods. Utility Model Content

[0007] This utility model proposes an automotive ball joint tie rod, which solves the problem of automotive ball joint tie rods in related technologies.

[0008] The technical solution of this utility model is as follows:

[0009] An automotive ball joint tie rod includes a tie rod, a ball joint housing fixed to one end of the tie rod, and a movable cavity and a lubricating oil cavity opened inside the ball joint housing. A support seat is provided at the bottom of the movable cavity, and a pressure ring block is sleeved on the top of the movable cavity. A ball is provided between the support seat and the pressure ring block, and a pin is fixed to the top of the ball.

[0010] Preferably, the ball head shell is fixedly connected to the support base, and the support base and the bottom of the ball are in contact.

[0011] Preferably, the ball head shell is threadedly engaged with the pressure ring block, and the pressure ring block is in contact with the top of the ball.

[0012] Preferably, the bottom of the support base has a through hole, and the movable cavity and the lubricating oil cavity are connected through the through hole.

[0013] Preferably, the bottom of the lubricating oil cavity is provided with an externally threaded base plate, a fixing post is fixed in the middle of the bottom of the externally threaded base plate, a push post is inserted inside the fixing post, a piston plate is fixed on the top of the push post, and the lubricating oil cavity and the piston plate are partially adapted in size.

[0014] Preferably, the push column has a lubricating oil inlet inside, and an external threaded plug is inserted inside the lubricating oil inlet, with the lubricating oil inlet and the external threaded plug being threadedly engaged.

[0015] Preferably, a return spring is sleeved between the fixed column and the push column, with a fixed ring at one end and an external threaded ring at the other end.

[0016] Preferably, the inner wall of the external threaded ring fits against the outer wall of the push post, and the external threaded ring is threadedly engaged with the fixed post.

[0017] Preferably, the push post is fixedly connected to the fixed ring, and the fixed ring is elastically connected to the external threaded ring by a return spring.

[0018] Preferably, a dust cover is provided on the upper part of the ball head shell, a mounting ring is provided on the top of the dust cover, the pin is threadedly engaged with the mounting ring and the top of the dust cover, and the bottom of the dust cover is fitted onto the top of the ball head shell.

[0019] The working principle and beneficial effects of this utility model are as follows:

[0020] 1. This utility model allows a sphere to be placed inside the movable cavity. The support seat provides support for the sphere, and the pressure ring block is fitted onto the outside of the sphere. The pressure ring block is screwed into the inside of the ball head shell and fits against the top of the sphere. The support seat and the pressure ring block restrict the position of the sphere.

[0021] 2. This utility model can send the lubricating oil inside the lubricating oil cavity into the interior of the moving cavity through the through hole. The lubricating oil can be used to lubricate the ball, the support seat and the pressure ring block, which can reduce the wear of the ball.

[0022] 3. This utility model can push the push column, which can push the fixed ring to move inside the fixed column and compress the return spring. The push column can also push the piston plate to move inside the lubricating oil chamber, so that the lubricating oil inside the lubricating oil chamber can be sent into the moving chamber through the through hole. The return spring can apply the elastic force to the fixed ring and the push column, so that the push column and the piston plate can be restored to the initial position, preparing for the next lubrication.

[0023] 4. This utility model can fit a dust cover and a mounting ring around the outside of the pin, and fit the bottom of the dust cover around the top of the ball head housing, and rotate the mounting ring on the pin so that the mounting ring abuts against the dust cover. This can be used to limit the position of the dust cover, and the dust cover can be used to provide dust protection for the internal components of the ball head housing. Attached Figure Description

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the installation state of the sphere of this utility model;

[0027] Figure 3 This is a cross-sectional view of the ball head shell of this utility model;

[0028] Figure 4 This is a schematic diagram of the internal structure of the fixing column of this utility model.

[0029] In the picture:

[0030] 1. Ball head housing; 2. Tie rod; 3. Moving chamber; 4. Lubricating oil chamber; 5. Support seat; 6. Pressure ring block; 7. Ball; 8. Pin; 9. Dust cover; 10. Mounting ring; 11. Through hole; 12. External thread base plate; 13. Fixed post; 14. Push post; 15. Return spring; 16. Fixed ring; 17. External thread ring; 18. Lubricating oil inlet; 19. External thread sealant; 20. Piston plate. Detailed Implementation

[0031] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model. Example 1

[0032] like Figures 1-4As shown, this embodiment proposes an automotive ball joint tie rod, including a tie rod 2, a ball joint housing 1 fixed to one end of the tie rod 2, and a movable cavity 3 and a lubricating oil cavity 4 opened inside the ball joint housing 1. A support seat 5 is provided at the bottom of the movable cavity 3, and a pressure ring block 6 is sleeved on the top of the movable cavity 3. A ball 7 is provided between the support seat 5 and the pressure ring block 6. A pin 8 is fixed to the top of the ball 7. The ball joint housing 1 is fixedly connected to the support seat 5. The bottom of the support seat 5 and the ball 7 are in contact. The ball joint housing 1 is threadedly engaged with the pressure ring block 6, and the pressure ring block 6 is in contact with the top of the ball 7.

[0033] In this embodiment, the ball 7 can be placed inside the movable cavity 3. The support seat 5 can provide support for the ball 7, and the pressure ring block 6 is sleeved on the outside of the ball 7. The pressure ring block 6 is screwed into the inside of the ball head shell 1 and the pressure ring block 6 is attached to the top of the ball 7. The position of the ball 7 can be restricted by the support seat 5 and the pressure ring block 6. At this time, the ball 7 can rotate inside the movable cavity 3, and the angle of the pin 8 can be changed. Example 2

[0034] like Figure 3 As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes that the bottom of the support base 5 is provided with a through hole 11, and the movable cavity 3 and the lubricating oil cavity 4 are connected through the through hole 11.

[0035] In this embodiment, the lubricating oil inside the lubricating oil cavity 4 can be sent into the interior of the movable cavity 3 through the through hole 11. The lubricating oil can be used to lubricate the ball 7, the support seat 5, and the pressure ring block 6, which can reduce the wear of the ball 7.

[0036] like Figure 3 and Figure 4 As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes that the bottom of the lubricating oil cavity 4 is provided with an external threaded base plate 12, a fixing post 13 is fixed in the middle of the bottom of the external threaded base plate 12, a push post 14 is passed through the inside of the fixing post 13, a piston plate 20 is fixed on the top of the push post 14, the lubricating oil cavity 4 and the piston plate 20 are partially adapted in size, a return spring 15 is sleeved between the fixing post 13 and the push post 14, a fixing ring 16 is provided at one end of the return spring 15, an external threaded ring 17 is provided at the other end, the inner wall of the external threaded ring 17 fits against the outer wall of the push post 14, the external threaded ring 17 is threadedly engaged with the fixing post 13, the push post 14 is fixedly connected to the fixing ring 16, and the fixing ring 16 and the external threaded ring 17 are elastically connected by the return spring 15.

[0037] In this embodiment, the push column 14 can be pushed, which can push the fixed ring 16 to move inside the fixed column 13 and compress the return spring 15. The push column 14 can also push the piston plate 20 to move inside the lubricating oil chamber 4, so that the lubricating oil inside the lubricating oil chamber 4 can be sent into the movable chamber 3 through the through hole 11. The return spring 15 can apply elastic force to the fixed ring 16 and the push column 14, so that the push column 14 and the piston plate 20 can be restored to their initial positions, preparing for the next lubrication.

[0038] like Figure 4 As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes that the pusher 14 has a lubricating oil inlet 18 inside, and an external threaded plug 19 is inserted inside the lubricating oil inlet 18, with the lubricating oil inlet 18 and the external threaded plug 19 threadedly engaged.

[0039] In this embodiment, lubricating oil is fed into the lubricating oil cavity 4 through the lubricating oil inlet 18, and then the external threaded sealing plug 19 is screwed into the lubricating oil inlet 18 to seal the lubricating oil inlet 18.

[0040] like Figure 1 and Figure 2 As shown, based on the same concept as in Embodiment 1 above, this embodiment also proposes that a dust cover 9 be provided on the top of the ball head shell 1, a mounting ring 10 be provided on the top of the dust cover 9, the pin 8 be threadedly engaged with the mounting ring 10 and the top of the dust cover 9, and the bottom of the dust cover 9 be fitted onto the top of the ball head shell 1.

[0041] In this embodiment, the dust cover 9 and the mounting ring 10 can be fitted over the outside of the pin 8, and the bottom of the dust cover 9 can be fitted over the top of the ball head housing 1. The mounting ring 10 is rotated on the pin 8 so that the mounting ring 10 abuts against the dust cover 9, which can be used to limit the position of the dust cover 9. The dust cover 9 can be used to provide dust protection for the internal components of the ball head housing 1.

[0042] In summary, the principle of lubrication is as follows:

[0043] First, the push post 14 can be passed through the inside of the fixed post 13, and the return spring 15 can be sleeved on the outside of the push post 14. The external threaded ring 17 can be sleeved between the fixed post 13 and the push post 14, and the external threaded ring 17 can be screwed into the inside of the fixed post 13. The external threaded ring 17 presses the return spring 15 into the inside of the fixed post 13. One end of the push post 14 is threaded to the piston plate 20, and the external threaded base plate 12 is threaded to the bottom of the ball head housing 1.

[0044] Then, lubricating oil is sent into the lubricating oil cavity 4 through the lubricating oil inlet 18. The external threaded plug 19 is then screwed into the lubricating oil inlet 18 to seal it. Next, the pusher 14 can be pushed, which can push the fixed ring 16 to move inside the fixed post 13 and compress the return spring 15. The pusher 14 also pushes the piston plate 20 to move inside the lubricating oil cavity 4, allowing the lubricating oil inside the lubricating oil cavity 4 to be sent into the movable cavity 3 through the through hole 11. The return spring 15 can apply elastic force to the fixed ring 16 and the pusher 14, restoring the pusher 14 and the piston plate 20 to their initial positions, preparing them for the next lubrication.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A ball joint tie rod for an automobile, characterized by It includes a pull rod (2), a ball head shell (1) fixed to one end of the pull rod (2), and an active cavity (3) and a lubricating oil cavity (4) opened inside the ball head shell (1). A support seat (5) is provided at the bottom of the active cavity (3), and a pressure ring block (6) is sleeved on the top of the active cavity (3). A ball (7) is provided between the support seat (5) and the pressure ring block (6), and a pin (8) is fixed on the top of the ball (7).

2. The automotive ball joint tie rod of claim 1, wherein The ball head shell (1) is fixedly connected to the support base (5), and the support base (5) and the bottom of the ball (7) are in contact.

3. The automotive ball joint tie rod of claim 1, wherein, The ball head shell (1) is threadedly engaged with the pressure ring block (6), and the pressure ring block (6) is attached to the top of the ball (7).

4. The automotive ball joint tie rod of claim 1, wherein, The bottom of the support base (5) is provided with a through hole (11), and the movable cavity (3) and the lubricating oil cavity (4) are connected through the through hole (11).

5. The automotive ball joint tie rod of claim 1, wherein, The bottom of the lubricating oil cavity (4) is provided with an external thread base plate (12), and a fixing column (13) is fixed in the middle of the bottom of the external thread base plate (12). A push column (14) is inserted inside the fixing column (13), and a piston plate (20) is fixed on the top of the push column (14). The lubricating oil cavity (4) and the piston plate (20) are partially matched in size.

6. The automotive ball joint tie rod of claim 5, wherein, The pusher (14) has an oil inlet (18) inside, and an external threaded plug (19) is inserted inside the oil inlet (18). The oil inlet (18) and the external threaded plug (19) are threaded together.

7. The automotive ball joint tie rod of claim 5, wherein, A return spring (15) is sleeved between the fixed column (13) and the push column (14). One end of the return spring (15) is provided with a fixed ring (16), and the other end is provided with an external threaded ring (17).

8. The automotive ball joint tie rod of claim 7, wherein, The inner wall of the external threaded ring (17) fits against the outer wall of the push post (14), and the external threaded ring (17) is threadedly engaged with the fixed post (13).

9. The automotive ball joint tie rod of claim 7, wherein, The pusher (14) is fixedly connected to the fixing ring (16), and the fixing ring (16) is elastically connected to the external threaded ring (17) through the return spring (15).

10. The automotive ball joint tie rod of claim 1, wherein, A dust cover (9) is provided above the ball head shell (1), and an installation ring (10) is provided on the top of the dust cover (9). The pin (8) is threadedly engaged with the installation ring (10) and the top of the dust cover (9). The bottom of the dust cover (9) is fitted onto the top of the ball head shell (1).

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