Steering ball pin structure

Abstract

The utility model relates to a kind of steering ball pin structure technical field, and disclose a kind of steering ball pin structure, including ball head main body seat, the inner side surface of ball head main body seat is equipped with ball head main body, the upper end of ball head main body is provided with threaded support node, threaded support node is fixedly sleeved with the outer surface of ball head main body seat and is equipped with dust cover, the lower end inner side surface of ball head main body seat is provided with sliding slot, its sliding slot place inner side sliding connection has first extrusion spring and clamping block, the outer surface of clamping block is slidingly connected in the lower end inner side surface of dust cover, the outer surface of threaded support node is connected with locking nut by thread, locking nut is extruded in the outer surface of dust cover, by adopting bottom clamping dust cover, top is extruded dust cover by locking nut, its installation is convenient, and installation is stable, and ball head main body seat is set in inner ring oil storage cavity, upper side is provided with convex oil filler structure, it is convenient to oil and store lubrication.

Description

Technical Field

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

[0002] The steering ball joint is a key component of a car's steering system, primarily used to connect the steering knuckle to the control arm or steering tie rod, enabling the wheels to steer and move vertically. Its core functions include: allowing the steering tie rod or control arm to be adjusted in multiple directions via its ball joint structure, adapting to changes in wheel steering angle and the elastic deformation of the suspension system; typically composed of a ball joint, ball seat, cover, and sealing cover, fixed using tapered or slotted cylindrical connections; and during steering, the tie rod assemblies on both sides of the steering gear pull the steering knuckles to swing, thereby... This causes the tires to deflect in the front and rear directions to achieve the purpose of vehicle steering. The steering tie rod and steering knuckle are connected by a steering ball pin passing through the through hole of the steering knuckle and being fixed together with fasteners. The end face mating area is sealed with a rubber sleeve. In other words, the traditional steering ball pin and steering knuckle connection structure consists of four parts: tie rod (ball seat), ball pin, sealing sleeve, and steering knuckle. The sealing sleeve needs to tightly seal the steering ball pin between the steering knuckle and the ball seat to prevent impurities such as mud and water from entering the ball seat through the end face of the sealing sleeve and causing abnormal wear of the ball pin. In the prior art, such as application publication number CN119590504A, this invention relates to the field of steering systems, specifically a steering ball pin structure and a steering knuckle assembly having the steering ball pin structure, including a ball pin; the ball pin includes a ball pin body, and the ball pin body is provided with a mounting ring platform; this invention changes the connection method of the traditional sealing sleeve by setting the mounting ring platform, the sealing sleeve directly abuts against the end face of the mounting ring platform of the ball pin, transforming the original fit relationship between the two product parts of the steering ball pin and the steering knuckle in the height direction into the control relationship of the internal dimensions of the same part (machining in the height direction of the ball pin), reducing the accumulation of dimensional tolerances in the height direction, ensuring the consistency of the compression of the sealing sleeve, and thus ensuring the sealing effect of the sleeve; since the end face of the sealing sleeve no longer fits with the end face of the steering knuckle, it also eliminates the occurrence of process problems such as rubber deformation and curling during the vehicle assembly process; In the aforementioned patent, the sealing sleeve is inconvenient to install, it has no positioning mechanism at the bottom, and after installation, when it vibrates and floats, the bottom is prone to leaking gaps, which can easily introduce dust. Its assembly is unstable, and when the ball head main body mechanism flips in the ball socket, it needs to be lubricated, and its lubricating oil is inconvenient to lubricate. Utility Model Content

[0003] In view of the shortcomings of the existing technology, this utility model provides a steering ball pin structure to solve the problems of inconvenient and unstable installation of dust cover, and to solve the problem of inconvenient lubrication.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a steering ball joint structure, including a ball joint body seat, a ball joint body mounted on the inner surface of the ball joint body seat, a threaded support joint at the upper end of the ball joint body, a dust cover fixedly sleeved on the outer surface of the ball joint body seat, a groove provided on the lower inner surface of the ball joint body seat, a first compression spring and a locking block slidably connected inside the groove, the outer surface of the locking block slidably engaging with the lower inner surface of the dust cover, a locking nut threadedly connected to the outer surface of the threaded support joint, the locking nut pressing against the outer surface of the dust cover, an inner annular oil reservoir provided on the inner surface of the ball joint body seat, and a guide channel and a convex filler port provided at the upper end of the ball joint body seat.

[0005] Preferably, a spherical plug is slidably connected to the inner surface of the convex filling port of the ball head body seat, the upper outer surface of the spherical plug is slidably engaged with the upper inner surface of the convex filling port, and a second compression spring is fixedly connected to the lower surface of the spherical plug, the lower outer surface of the second compression spring is slidably engaged with the lower inner surface of the convex filling port.

[0006] Preferably, the lower end of the dust cover has a locking interface at both ends, and the outer surface of the locking block is slidably locked onto the inner surface of the locking interface of the dust cover.

[0007] Preferably, the locking nuts are installed on the outer surface of the threaded support section in two layers, with the upper locking nut pressing and locking onto the surface of the lower locking nut.

[0008] Preferably, the dust cover adopts a rubber sleeve structure, and the dust cover adopts a variable diameter sleeve structure.

[0009] Preferably, the card block adopts a corner card block structure, and its outer end has a rounded corner structure.

[0010] Preferably, the lower inner surface of the dust cover is tightly fitted onto the outer surface of the upper protrusion of the ball head body seat.

[0011] Compared with the prior art, the present invention provides a steering ball pin structure, which has the following advantages: By using a bottom-clamping dust cover and a top-clamping nut to compress the dust cover, it is easy and stable to install. The ball head body seat is equipped with an inner ring oil storage chamber and a convex oil filling port structure on the upper side, which facilitates oiling and lubrication storage. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the first cross-section of the overall structure; Figure 2 This is a schematic diagram of the second cross-section of the overall structure; Figure 3 This is a schematic diagram of a partial structure of the ball head main body seat; Figure 4 This is an enlarged view of point A; Figure 5 This is an enlarged view of point B.

[0013] In the figure: 1. Ball head body seat, 2. Ball head body, 3. Threaded support section, 4. Dust cover, 5. Clamping block, 6. First compression spring, 8. Locking nut, 10. Inner ring oil storage chamber, 11. Guide channel, 12. Convex oil filling port, 13. Spherical plug, 14. Second compression spring. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] This utility model provides a technical solution, a steering ball pin structure, according to the appendix. Figure 1-5 As shown, the device includes a ball head body 1, characterized in that: a ball head body 2 is assembled on the inner surface of the ball head body 1, a threaded support section 3 is provided at the upper end of the ball head body 2, a dust cover 4 is fixedly sleeved on the outer surface of the ball head body 1 and the threaded support section 3 is fixedly sleeved on the outer surface of the ball head body 1, a groove is provided on the inner surface of the lower end of the ball head body 1, a first compression spring 6 and a locking block 5 are slidably connected to the inner side of the groove, the outer surface of the locking block 5 is slidably locked on the inner surface of the lower end of the dust cover 4, a locking nut 8 is threadedly connected to the outer surface of the threaded support section 3, the locking nut 8 is pressed against the outer surface of the dust cover 4, an inner ring oil storage cavity 10 is provided on the inner surface of the ball head body 1, and a guide channel 11 and a convex oil filling port 12 are provided at the upper end of the ball head body 1; by adopting a bottom-locking dust cover and a top-locking dust cover, the installation is convenient and stable, and the inner ring oil storage cavity and the convex oil filling port structure on the upper side facilitate oiling and lubrication storage; A spherical plug 13 is slidably connected to the inner surface of the convex oil filling port 12 of the ball head body seat 1. The upper outer surface of the spherical plug 13 is slidably engaged with the upper inner surface of the convex oil filling port 12. A second compression spring 14 is fixedly connected to the lower surface of the spherical plug 13. The lower outer surface of the second compression spring 14 is slidably engaged with the lower inner surface of the convex oil filling port 12. This facilitates downward compression of the spherical plug 13, allowing the spherical plug 13 to slide downward to open the convex oil filling port 12, making it convenient to squeeze in lubricating oil. The lower end of the dust cover 4 has two locking interfaces. The outer surface of the locking block 5 slides and locks into the inner surface of the locking interface of the dust cover 4. The locking block 5 locks outward into the dust cover 4. The bottom of the dust cover 4 is securely fastened. The dust cover 4 will not float at the bottom when vibrating, and will not open and leak gaps to let dust in, thus improving installation stability and sealing performance during use. The upper and lower layers of locking nuts 8 are installed on the outer surface of the threaded support section 3. The upper locking nut 8 is pressed and locked onto the surface of the lower locking nut 8. The upper and lower locking nuts 8 are fixed, which makes installation convenient and stable. The dust cover 4 adopts a rubber sleeve structure and a variable diameter sleeve structure. The dust cover 4 is telescopic and floating. The locking block 5 adopts a folded corner locking block structure, and its outer end has a rounded corner structure; it is easy to lock into the bottom locking interface of the dust cover 4, and guides the locking when locking in, making locking convenient; the lower inner surface of the dust cover 4 is tightly fitted onto the outer surface of the upper protrusion of the ball head body seat 1; making it easy to fit. The working principle of this device is as follows: During use, a dust cover 4 is fixedly fitted onto the outer surface of the threaded support section 3 and the ball head main body 1. A groove is provided on the inner side of the lower end of the ball head main body 1. A first compression spring 6 and a locking block 5 are slidably connected to the inner side of the groove. The outer surface of the locking block 5 is slidably engaged with the inner side of the lower end of the dust cover 4. A locking nut 8 is threadedly connected to the outer surface of the threaded support section 3. The locking nuts 8 are installed in two layers on the outer surface of the threaded support section 3. The upper locking nut 8 is pressed and locked onto the surface of the lower locking nut 8. The upper and lower locking nuts 8 are fixed and easy to install. The upper dust cover 4 is installed stably. The inner surface of the ball head body 1 is provided with an inner ring oil storage cavity 10, and the upper end of the ball head body 1 is provided with a guide channel 11 and a convex oil filling port 12. In use, lubricating oil can be added through the convex oil filling port 12, the guide channel 11 guides the lubricating oil downward, and the inner ring oil storage cavity 10 can store lubricating oil. When rotating the ball head body 2, lubricating oil can be applied for lubrication. A spherical plug 13 is slidably connected to the inner surface of the convex oil filling port 12 of the ball head body 1. The upper outer surface of the spherical plug 13 is slidably engaged with the upper inner surface of the convex oil filling port 12. A second compression spring 14 is fixedly connected to the lower surface of the spherical plug 13. The lower outer surface of the second compression spring 14 is slidably engaged with the lower inner surface of the convex oil filling port 12. It is convenient to squeeze the spherical plug 13 downward and slide the spherical plug 13 downward to open the convex oil filling port 12, making it convenient to squeeze in lubricating oil.

[0016] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steering ball joint structure, comprising a ball joint body seat (1), characterized in that: The inner surface of the ball head body seat (1) is fitted with a ball head body (2). The upper end of the ball head body (2) is provided with a threaded support section (3). The threaded support section (3) is fixedly sleeved with the outer surface of the ball head body seat (1) and a dust cover (4) is installed. The lower inner surface of the ball head body seat (1) is provided with a groove. The inner side of the groove is slidably connected with a first compression spring (6) and a locking block (5). The outer surface of the locking block (5) is slidably locked onto the lower inner surface of the dust cover (4). The outer surface of the threaded support section (3) is connected with a locking nut (8) by threads. The locking nut (8) is pressed against the outer surface of the dust cover (4). The inner surface of the ball head body seat (1) is provided with an inner ring oil storage cavity (10). The upper end of the ball head body seat (1) is provided with a guide channel (11) and a convex oil filling port (12).

2. The steering ball pin structure according to claim 1, characterized in that: A spherical plug (13) is slidably connected to the inner surface of the convex filling port (12) of the ball head body seat (1). The upper outer surface of the spherical plug (13) is slidably engaged with the upper inner surface of the convex filling port (12). A second compression spring (14) is fixedly connected to the lower surface of the spherical plug (13). The lower outer surface of the second compression spring (14) is slidably engaged with the lower inner surface of the convex filling port (12).

3. The steering ball pin structure according to claim 1, characterized in that: The dust cover (4) has card interfaces at both ends at the lower end, and the outer surface of the card block (5) slides and engages with the inner surface of the card interface of the dust cover (4).

4. The steering ball pin structure according to claim 1, characterized in that: The upper and lower layers of the locking nut (8) are installed on the outer surface of the threaded support section (3), and the upper locking nut (8) is pressed and locked onto the surface of the lower locking nut (8).

5. A steering ball pin structure according to claim 1, characterized in that: The dust cover (4) adopts a rubber sleeve structure, and its dust cover (4) adopts a variable diameter sleeve structure.

6. The steering ball pin structure according to claim 1, characterized in that: The card block (5) adopts a folded corner card block structure, and its outer end has a rounded corner structure.

7. A steering ball pin structure according to claim 1, characterized in that: The lower inner surface of the dust cover (4) is tightly fitted onto the outer surface of the upper protrusion of the ball head body seat (1).

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