Novel steering outer ball head structure

By designing a ball joint structure and a limiting engagement method, the problems of vibration and noise of the steering outer ball joint on irregular road surfaces and the difficulty in removing the dust cover were solved, realizing stable load transmission of the ball joint and rapid installation and removal of the dust cover.

CN224184334UActive Publication Date: 2026-05-01YUBEI CSA XINXIANG AUTO TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUBEI CSA XINXIANG AUTO TECH CO LTD
Filing Date
2025-05-23
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

When the vehicle is driving on irregular road surfaces, the ball joint of the existing steering ball joint is prone to collision between the ball pin and the ball pin housing, resulting in vibration and abnormal noise. In addition, the dust cover is not easy to remove and install quickly.

Method used

A novel steering ball joint structure was designed, which consists of a ball joint structure with an elliptical opening of the ball pin shell, a spherical mounting cavity, a ball pin seat, a ball joint body, a ball pin rod, an annular mounting groove, and a semi-circular fixing component. The dust cover is initially and further limited by connecting pins and threaded fixing, which facilitates the installation and removal of the dust cover.

Benefits of technology

It effectively prevents the ball head body from coming off, reduces vibration and abnormal noise, and facilitates the quick installation and removal of the dust cover, thus improving ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel steering outer ball head structure which comprises a ball pin shell, an oval opening is formed in one side of the ball pin shell, a spherical installation cavity is formed in the oval opening, a ball pin base is fixedly arranged in the spherical installation cavity, and a ball head body is rotationally arranged in the ball pin base. A ball pin rod is fixedly connected to one side of the ball head body, and a first annular mounting groove is formed in the middle of the surface of the ball pin rod. According to the novel steering outer ball head structure, in the running process of a vehicle, the ball pin shell can swing in the left-right direction or the front-back direction around the ball pin rod on the plane perpendicular to the connecting rod; by means of the spherical hinge structural design, the load transmission effect can be achieved when a vehicle steers, the situation that the ball head body is disengaged from the ball pin shell when the vehicle has an accident can be prevented, the opening of the ball pin shell is designed to be the oval opening, and swing of the ball pin shell cannot be affected by the structural design.
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Description

Technical Field

[0001] This utility model relates to the field of steering ball joints, specifically a novel steering ball joint structure. Background Technology

[0002] The outer ball joint is a ball joint component in a car's steering system that connects the steering linkage to the front wheel suspension. It is responsible for transmitting steering force and allowing changes in wheel angle. The outer ball joint is a crucial component of the steering gear, connecting the wheels to achieve steering. It consists of a ball pin, dust cover, ball pin housing, ball pin seat, and cover plate. However, with existing steering outer ball joints, the ball pin is prone to colliding with the ball pin housing when the vehicle is traveling on irregular surfaces, leading to vibration and abnormal noise. Furthermore, it is inconvenient to quickly remove and install the dust cover.

[0003] To address the aforementioned issues, a novel steering ball joint structure is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a novel steering ball joint structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel steering ball joint structure, comprising a ball pin shell, an elliptical opening on one side of the ball pin shell, a spherical mounting cavity inside the elliptical opening, a ball pin seat fixedly disposed inside the spherical mounting cavity, a ball joint body rotatably disposed inside the ball pin seat, a ball pin rod fixedly connected to one side of the ball joint body, a first annular mounting groove in the middle of the surface of the ball pin rod, a first annular mounting seat fixedly disposed inside the first annular mounting groove, two first semi-circular fasteners engaged on the surface of the first annular mounting seat, a second annular mounting groove in the surface of the ball pin shell, a second annular mounting seat fixedly disposed inside the second annular mounting groove, two second semi-circular fasteners engaged on the surface of the second annular mounting seat, and a dust cover fixedly disposed between the two second semi-circular fasteners and the two first semi-circular fasteners.

[0006] During vehicle operation, the ball joint structure allows the ball pin housing to swing left-right or forward-backward around the ball pin rod in a plane perpendicular to the connecting rod. This ball joint design enables load transmission during vehicle steering and prevents the ball joint body from detaching from the ball pin housing in the event of an accident. The elliptical opening of the ball pin housing ensures its swing is not affected. Four connecting pins engage with four connecting slots to initially limit the movement of the two first and two second semi-circular fixing components, facilitating the installation of the dust cover. Initial installation involves securing the dust cover to the four threaded holes with four fixing bolts, which further limits the positioning of the two first and two second semi-circular fasteners. This facilitates the further installation and fixation of the dust cover. By loosening the four fixing bolts, the dust cover is separated from the four threaded holes, eliminating the need to fix the two first and two second semi-circular fasteners. Then, a larger force is applied to pull the two first and two second semi-circular fasteners outward, causing the four connecting pins to separate from the four connecting slots, thus facilitating the quick disassembly of the dust cover.

[0007] Preferably, a connecting slot is provided on one side of the connection between the first annular mounting base and the two first semi-circular fasteners, and on one side of the connection between the second annular mounting base and the two second semi-circular fasteners. A connecting pin is engaged inside each of the four connecting slots. The four connecting pins are fixedly connected to the two first semi-circular fasteners and the two second semi-circular fasteners, respectively. The four connecting pins are engaged with the four connecting slots to facilitate the initial positioning of the two first semi-circular fasteners and the two second semi-circular fasteners, thereby facilitating the initial installation of the dust cover.

[0008] Preferably, the surfaces of the two first semicircular fasteners and the two second semicircular fasteners are each provided with a first threaded hole. The side of the connection between the first annular mounting base and the two first semicircular fasteners away from the connecting slot, and the side of the connection between the second annular mounting base and the two second semicircular fasteners away from the connecting slot, are each provided with a second threaded hole. Fixing bolts are threaded between the four first threaded holes and the four second threaded holes respectively. The four fixing bolts are threaded into the four second threaded holes respectively to facilitate further positioning of the two first semicircular fasteners and the two second semicircular fasteners, thereby facilitating further fixing and installation of the dust cover.

[0009] Preferably, a circular hole is provided at the end of the ball pin rod away from the ball head body, which facilitates the connection and installation of the ball pin rod.

[0010] Preferably, a connecting rod is fixedly connected to the top of the ball pin housing, and a hexagonal hole is provided at the end of the connecting rod away from the ball pin housing, so that the connecting rod can be connected and installed easily.

[0011] Preferably, the ball pin and the ball head body are an integral structure, which can ensure the structural strength of the ball head structure.

[0012] Preferably, the dust cover is snapped onto the ball pin housing and the ball pin rod, and the dust cover can play a role in preventing dust.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] During vehicle operation, the ball joint structure allows the ball pin housing to swing left-right or forward-backward around the ball pin rod in a plane perpendicular to the connecting rod. This ball joint design enables load transmission during vehicle steering and prevents the ball joint body from detaching from the ball pin housing in the event of an accident. The elliptical opening of the ball pin housing ensures its swing is not affected. Four connecting pins engage with four connecting slots to initially limit the movement of the two first and two second semi-circular fixing components, facilitating the installation of the dust cover. Initial installation involves securing the dust cover to the four threaded holes with four fixing bolts, which further limits the positioning of the two first and two second semi-circular fasteners. This facilitates the further installation and fixation of the dust cover. By loosening the four fixing bolts, the dust cover is separated from the four threaded holes, eliminating the need to fix the two first and two second semi-circular fasteners. Then, a larger force is applied to pull the two first and two second semi-circular fasteners outward, causing the four connecting pins to separate from the four connecting slots, thus facilitating the quick disassembly of the dust cover. Attached Figure Description

[0015] Figure 1 This is a partial perspective view of the present invention;

[0016] Figure 2 This is a front sectional view of the present invention;

[0017] Figure 3 This is a top view of the present invention;

[0018] Figure 4 This is an enlarged view of part A of this utility model.

[0019] In the diagram: 1. Ball pin housing; 2. Elliptical opening; 3. Spherical mounting cavity; 4. Ball pin seat; 5. Ball pin rod; 6. Round hole; 7. First annular mounting groove; 8. First annular mounting seat; 9. Second annular mounting groove; 10. Second annular mounting seat; 11. Second semi-circular fastener; 12. Dust cover; 13. First semi-circular fastener; 14. Connecting slot; 15. Connecting pin; 16. First threaded hole; 17. Second threaded hole; 18. Fixing bolt; 19. Connecting rod; 20. Hexagonal hole; 21. Ball head body. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please see Figures 1-4This utility model provides a novel steering ball joint structure, including a ball pin housing 1. An elliptical opening 2 is formed on one side of the ball pin housing 1. A spherical mounting cavity 3 is formed inside the elliptical opening 2. A ball pin seat 4 is fixedly disposed inside the spherical mounting cavity 3. A ball head body 21 is rotatably disposed inside the ball pin seat 4. A ball pin rod 5 is fixedly connected to one side of the ball head body 21. A first annular mounting groove 7 is formed in the middle of the surface of the ball pin rod 5. A first annular mounting seat 8 is fixedly disposed inside the first annular mounting groove 7. Two first annular mounting bases 8 are engaged on the surface of the first annular mounting base 8. The semi-circular fixing member 13 has a second annular mounting groove 9 on its surface. A second annular mounting seat 10 is fixedly installed inside the second annular mounting groove 9. Two second semi-circular fixing members 11 are engaged on the surface of the second annular mounting seat 10. A dust cover 12 is fixedly installed between the two second semi-circular fixing members 11 and the two first semi-circular fixing members 13. During vehicle operation, the ball joint structure allows the ball joint housing 1 to swing left and right or back and forth around the ball joint rod 5 in the plane perpendicular to the connecting rod 19. This ball joint structure design enables... To achieve load transmission during vehicle steering, the ball joint body 21 is designed to prevent it from detaching from the ball pin housing 1 in the event of an accident. The ball pin housing 1 has an elliptical opening 2, a design that does not affect its swing. Four connecting pins 15 engage with four connecting slots 14 to preliminarily limit the movement of the two first semi-circular fasteners 13 and two second semi-circular fasteners 11, facilitating the initial installation of the dust cover 12. Four fixing bolts 18 are threaded into four second threaded holes 17 to facilitate the installation of the two... The first semi-circular fastener 13 and the two second semi-circular fasteners 11 are further limited, which facilitates the further fixing and installation of the dust cover 12. By loosening the four fixing bolts 18, they are separated from the four second threaded holes 17, and the two first semi-circular fasteners 13 and the two second semi-circular fasteners 11 are no longer fixed. Then, a larger force is used to pull the two first semi-circular fasteners 13 and the two second semi-circular fasteners 11 outward, so that the four connecting pins 15 are separated from the four connecting slots 14, which facilitates the quick disassembly of the dust cover 12.

[0022] Connecting slots 14 are provided on one side of the connection between the first annular mounting base 8 and the two first semi-circular fasteners 13, and on one side of the connection between the second annular mounting base 10 and the two second semi-circular fasteners 11. Connecting pins 15 are engaged inside the four connecting slots 14. The four connecting pins 15 are fixedly connected to the two first semi-circular fasteners 13 and the two second semi-circular fasteners 11 respectively. First threaded holes 16 are provided on the surfaces of the two first semi-circular fasteners 13 and the two second semi-circular fasteners 11. Second threaded holes 17 are provided on the side of the connection between the first annular mounting base 8 and the two first semi-circular fasteners 13 away from the connecting slots 14, and on the side of the connection between the second annular mounting base 10 and the two second semi-circular fasteners 11 away from the connecting slots 14. Fixing bolts 18 are threaded between the four first threaded holes 16 and the four second threaded holes 17 respectively. A round hole 6 is provided at the end of the ball pin 5 away from the ball head body 21.

[0023] In use, the four connecting pins 15 engage with the four connecting slots 14 to preliminarily limit the two first semi-circular fasteners 13 and the two second semi-circular fasteners 11, thus facilitating the initial installation of the dust cover 12. The four fixing bolts 18 are threaded into the four second threaded holes 17 to further limit the two first semi-circular fasteners 13 and the two second semi-circular fasteners 11, thus facilitating the further fixed installation of the dust cover 12. The round hole 6 facilitates the connection and installation of the ball pin 5.

[0024] A connecting rod 19 is fixedly connected to the top of the ball pin housing 1. A hexagonal hole 20 is opened at the end of the connecting rod 19 away from the ball pin housing 1. The ball pin rod 5 and the ball head body 21 are an integral structure. The dust cover 12 is snapped onto the ball pin housing 1 and the ball pin rod 5.

[0025] In use, the hexagonal hole 20 facilitates the connection and installation of the connecting rod 19, and the dust cover 12 provides dust protection.

[0026] In use, the ball joint structure of this application allows the ball pin housing 1 to swing left and right or forward and backward around the ball pin rod 5 in the plane perpendicular to the connecting rod 19 during vehicle operation. This ball joint structure design enables the transmission of loads during vehicle steering and prevents the ball head body 21 from dislodging from the ball pin housing 1 in the event of an accident. Furthermore, the ball pin housing 1 has an elliptical opening 2, which does not affect the swing of the ball pin housing 1. During use, the four connecting pins 15 engage with the four connecting slots 14 to initially limit the movement of the two first semi-circular fixing parts 13 and the two second semi-circular fixing parts 11, thereby facilitating the adjustment of the dust cover. 12 is initially installed by fixing the four fixing bolts 18 to the threads of the four second threaded holes 17, which facilitates further positioning of the two first semi-circular fixing parts 13 and the two second semi-circular fixing parts 11, thereby facilitating the further fixing and installation of the dust cover 12. By loosening the four fixing bolts 18, they are separated from the four second threaded holes 17, and the two first semi-circular fixing parts 13 and the two second semi-circular fixing parts 11 are no longer fixed. Then, a larger force is used to pull the two first semi-circular fixing parts 13 and the two second semi-circular fixing parts 11 outward, so that the four connecting pins 15 are separated from the four connecting slots 14, thereby facilitating the quick disassembly of the dust cover 12.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A novel steering ball joint structure, comprising a ball pin housing (1), characterized in that: The ball pin housing (1) has an elliptical opening (2) on one side, and a spherical mounting cavity (3) is provided inside the elliptical opening (2). A ball pin seat (4) is fixedly installed inside the spherical mounting cavity (3). A ball head body (21) is rotatably installed inside the ball pin seat (4). A ball pin rod (5) is fixedly connected to one side of the ball head body (21). A first annular mounting groove (7) is provided in the middle of the surface of the ball pin rod (5). A first annular mounting seat (8) is fixedly installed inside the first annular mounting groove (7). Two first semi-circular fasteners (13) are engaged on the surface of the first annular mounting seat (8). A second annular mounting groove (9) is provided on the surface of the ball pin housing (1). A second annular mounting seat (10) is fixedly installed inside the second annular mounting groove (9). Two second semi-circular fasteners (11) are engaged on the surface of the second annular mounting seat (10). A dust cover (12) is fixedly installed between the two second semi-circular fasteners (11) and the two first semi-circular fasteners (13).

2. The novel steering ball joint structure according to claim 1, characterized in that: A connecting slot (14) is provided on one side of the connection between the first annular mounting base (8) and the two first semi-circular fasteners (13) and on one side of the connection between the second annular mounting base (10) and the two second semi-circular fasteners (11). A connecting pin (15) is engaged inside each of the four connecting slots (14). The four connecting pins (15) are fixedly connected to the two first semi-circular fasteners (13) and the two second semi-circular fasteners (11) respectively.

3. The novel steering ball joint structure according to claim 1, characterized in that: First threaded holes (16) are provided on the surfaces of the two first semi-circular fasteners (13) and the two second semi-circular fasteners (11). Second threaded holes (17) are provided on the side of the connection between the first annular mounting base (8) and the two first semi-circular fasteners (13) away from the connecting slot (14) and the side of the connection between the second annular mounting base (10) and the two second semi-circular fasteners (11) away from the connecting slot (14). Fixing bolts (18) are threaded between the four first threaded holes (16) and the four second threaded holes (17).

4. The novel steering ball joint structure according to claim 1, characterized in that: The ball pin (5) has a round hole (6) at one end away from the ball head body (21).

5. The novel steering ball joint structure according to claim 1, characterized in that: A connecting rod (19) is fixedly connected to the top of the ball pin shell (1), and a hexagonal hole (20) is opened at the end of the connecting rod (19) away from the ball pin shell (1).

6. The novel steering ball joint structure according to claim 1, characterized in that: The ball pin (5) and the ball head body (21) are an integral structure.

7. The novel steering ball joint structure according to claim 1, characterized in that: The dust cover (12) is engaged with the ball pin housing (1) and the ball pin rod (5).