A quick release type ball stud assembly

By designing a quick-release ball joint assembly and using a connection method of mounting rings, hooks, retaining rings and locking screws, the problem of difficult disassembly of ball joint assembly components in the prior art is solved, realizing quick installation and disassembly, facilitating maintenance, and improving the utilization efficiency of lubricating oil.

CN224326562UActive Publication Date: 2026-06-05ZHEJIANG MEIYU MINGJIANG AUTO PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG MEIYU MINGJIANG AUTO PARTS CO LTD
Filing Date
2025-08-19
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The existing ball joint pin assembly has components that are difficult to disassemble and repair, making replacement and maintenance difficult.

Method used

A quick-release ball joint assembly was designed, which enables quick installation and disassembly through the special structure of the mounting ring and ball seat. The connection method of hook, retaining ring and locking screw facilitates the installation and disassembly of the ball joint, and the U-shaped oil filling hole facilitates the addition of lubricating oil.

Benefits of technology

It enables quick installation and removal of ball joints, facilitating parts replacement and maintenance, while also improving the utilization efficiency of lubricating oil and reducing lubricating oil waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a quick dismounting type ball head pin assembly relates to ball head pin technical field, the utility model discloses a ball head, the ball head top is wrapped and is provided with the mounting ring, the mounting ring bottom is fixedly connected with the hook, the ball head below is provided with the ball seat, the ball seat top starts to have the fixed slot, the fixed slot side is fixedly connected with the clamping ring, the utility model discloses the half circular design through top mounting ring, the ball head rod is pressed on the ball head and is sleeved, and the bottom hook is put into the fixed slot after combination, and the hook is let the hook is stuck on the clamping ring by rotating the mounting ring, thereby fixedly installs the ball head between the mounting ring and the ball seat, and the clearance reserved can let the ball head move and adjust direction inside up and down, and the whole installation and dismounting are more quick, and the replacement and maintenance are convenient.
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Description

Technical Field

[0001] This utility model belongs to the field of ball head pin technology, specifically, it relates to a quick-release ball head pin assembly. Background Technology

[0002] The ball joint is one of the core components of a vehicle's suspension and steering systems. It is mainly used to connect the wheel to the suspension components (such as the control arm) and allows the wheel to flexibly turn and move up and down within a certain range. It is the "moving joint" of the vehicle's suspension and steering system and directly affects handling, comfort and safety.

[0003] Chinese patent CN209458280U discloses a ball joint assembly, relating to the field of automotive parts. This ball joint assembly includes a ball housing, a ball joint seat, and a ball joint rod. The lower end face of the ball housing is provided with a cap. The ball joint rod includes a ball portion embedded in the ball joint seat and a rod portion disposed on the ball portion. The lower inner wall of the ball joint seat is provided with an oil reservoir. The upper outer wall of the ball portion is provided with multiple lubricating oil grooves arranged along the length of the rod portion. The multiple lubricating oil grooves are evenly distributed along the circumference of the rod portion. The upper end of the lubricating oil grooves is flush with the lower end of the rod portion, and the lower end extends to the middle of the side wall of the ball portion. The ball joints of the aforementioned prior art are integrally connected, and the fixed components are inconvenient to disassemble and repair.

[0004] In view of this, this utility model is hereby proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a quick-disassembly ball joint assembly, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A quick-release ball joint assembly includes: a ball joint rod, characterized in that a ball joint is fixedly connected to the bottom of the ball joint rod, a mounting ring is wrapped around the top of the ball joint, a hook is fixedly connected to the bottom of the mounting ring, a ball seat is provided below the ball joint, a fixing groove is formed at the top of the ball seat, and a retaining ring is fixedly connected to the side of the fixing groove.

[0008] Optionally, the bottom of the inner ring of the mounting ring has an indentation.

[0009] Optionally, the mounting ring is composed of two semi-circular pieces joined together.

[0010] Optionally, the mounting ring has an inwardly opening movable hole, a spring is installed inside the movable hole, a connecting rod is installed near the outer side of the movable hole, and a pressure block is fixedly connected to the connecting rod facing outward.

[0011] Optionally, a positioning block is fixedly connected to the side of the ball seat, and a threaded hole two is formed through the side of the positioning block. The mounting ring has a threaded hole one corresponding to the position of the threaded hole two. Locking screws are rotatably installed inside the threaded hole one and the threaded hole two.

[0012] Optionally, an oil injection hole is provided on the side of the ball seat.

[0013] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0014] 1. This quick-release ball joint assembly features a semi-circular top mounting ring that fits onto the ball joint and presses down on the ball head. After assembly, the bottom hook is placed in the fixing groove. Rotating the mounting ring allows the hook to engage with the retaining ring, thus installing the ball head between the mounting ring and the ball seat. This enables quick installation and removal of the ball head within the mounting ring, facilitating the replacement and maintenance of some parts. The reserved gap allows the ball head to move up and down and adjust its direction internally, enabling the movement of the ball joint.

[0015] 2. This quick-release ball joint assembly allows lubricating oil to be added into the ball seat through the bottom U-shaped oil injection hole, making external oil injection more convenient. The curved oil channel prevents internal lubricating oil from seeping out and causing waste.

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is an exploded view of the present invention;

[0020] Figure 3 This is a cross-sectional view of the present invention;

[0021] Figure 4 for Figure 3 Enlarged view of point A shown.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Ball joint rod; 2. Ball joint; 3. Mounting ring; 301. Movable hole; 302. Connecting rod; 303. Pressure block; 304. Spring; 305. Hook; 306. Threaded hole one; 307. Locking screw; 4. Ball seat; 401. Fixing groove; 402. Snap ring; 403. Positioning block; 404. Threaded hole two; 405. Oil injection hole.

[0024] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] Please see Figure 1-4 As shown, this embodiment provides a quick-release ball joint assembly, including: a ball joint 1.

[0027] like Figure 1-4 As shown, in this embodiment, a ball head 2 is fixedly connected to the bottom of the ball head 1, and a mounting ring 3 is wrapped around the top of the ball head 2. A hook 305 is fixedly connected to the bottom of the mounting ring 3. A ball seat 4 is provided below the ball head 2, and a fixing groove 401 is formed at the top of the ball seat 4. A retaining ring 402 is fixedly connected to the side of the fixing groove 401. The ball head 1 passes through the center of the mounting ring 3, and the top edge of the ball head 2 fits against the inner groove of the mounting ring 3. The retaining ring 402 is provided with a half-circle in the fixing groove 401. Similarly, the hook 305 at the bottom of the mounting ring 3 is also a half-circle. The mounting ring 3 with the ball head 2 installed is then... The ball seat 4 is attached from top to bottom. First, the hooks 305 and retaining rings 402 corresponding to the half-circle are misaligned. The hooks 305 are first inserted into the fixing grooves 401 where there are no retaining rings 402. The mounting ring 3 and the ball seat 4 are then attached. Next, the mounting ring 3 is rotated 180 degrees so that the hooks 305 extend under the retaining rings 402 and are attached to the retaining rings 402. The mounting ring 3 and the ball seat 4 are then connected. The ball head 2 is then embedded between the two. The inner side of the top of the mounting ring 3 has a rounded chamfer, which increases the range of rotation of the ball head 1, thus making it easier for the ball head 2 to rotate to adjust the position of the ball head 1.

[0028] like Figure 3 , 4 As shown, the bottom of the inner ring of the mounting ring 3 in this embodiment is concave; the inner ring of the mounting ring 3 is arc-shaped, and the ball head 2 is fitted with the ball head 2 by being wider at the top and narrower at the bottom, so that the ball head 2 is stuck in the mounting ring 3. When the ball head 2 is pulled up, the arc surface fits the inner ring of the mounting ring 3, and it is not easy to detach from the mounting ring 3.

[0029] like Figure 2As shown, the mounting ring 3 in this embodiment is composed of two semi-circular pieces joined together. The two semi-circular mounting rings 3 are joined end to end to form a circle. The two halves are separated to open the center of the mounting ring 3, making it convenient for the ball head 2 to be placed in the center. This eliminates the need for the ball head rod 1 to pass through the mounting ring 3 from bottom to top, making installation faster and more convenient.

[0030] like Figure 3 , 4 As shown, in this embodiment, the mounting ring 3 has an inwardly opening movable hole 301, inside which a spring 304 is installed. A connecting rod 302 is located near the outer side of the movable hole 301, and a pressure block 303 is fixedly connected to the connecting rod 302 outward. The two ends of the spring 304 are respectively connected to the movable hole 301 and the connecting rod 302, pulling the connecting rod 302 to prevent it from detaching from the mounting ring 3. The surface of the pressure block 303 on the connecting rod 302 is arc-shaped, which can fit against the ball head 2. The space of the combination of the mounting ring 3 and the ball seat 4 can ensure that the ball head 2 can rotate and move up and down inside. When the top of the ball head 2 fits against the pressure block 303 upward, the pressure block 303 pushes the connecting rod 302 into the movable hole 301 to compress the spring 304, reducing the impact of the ball head 2 on the mounting ring 3. At the same time, the limiting effect of the pressure block 303 prevents the ball head 2 from detaching from the top of the mounting ring 3.

[0031] like Figure 2 As shown, in this embodiment, a positioning block 403 is fixedly connected to the side of the ball seat 4. A threaded hole 404 is formed through the side of the positioning block 403. A threaded hole 306 is formed at the position corresponding to the threaded hole 404. A locking screw 307 is rotatably installed inside the threaded hole 306 and the threaded hole 404. The positioning block 403 protrudes upward on the side of the ball seat 4, which does not affect the installation of the mounting ring 3. After the two mounting rings 4 are closed, they are fixed by the locking screw 307 through the alignment of the threaded hole 306. Then, the mounting ring 3 is rotated until the hook 305 is engaged with the retaining ring 402. When the two are fully engaged in the appropriate position, the threaded hole 306 is exactly aligned with the threaded hole 404. The locking screw 307 is rotated further to be engaged in the threaded hole 404. The mounting ring 3 is connected to the ball seat 4 through the positioning block 403. With the help of the hook 305 and the retaining ring 402, the mounting ring 3 and the ball seat 4 are completely fixed.

[0032] like Figure 3 As shown, the ball seat 4 in this embodiment has an oil injection hole 405 on its side; wherein, the oil injection hole is U-shaped, extends downward and then connects upward to the inside of the ball seat 4, and lubricating oil is added into the ball seat 4 to achieve external oil injection of the ball head pin, and the arc-shaped oil channel prevents internal lubricating oil from seeping out and causing waste.

[0033] Working principle: Take two mounting rings 3, align and assemble them at the ball head rod 1, and put them down on the ball head 2, so that the pressure block 303 presses on the surface of the ball head 2. After the mounting rings 3 are assembled, align the hook 305 with the half of the ball seat 4 fixing groove 401 without the retaining ring 402 and press it down. The mounting rings 3 and the ball seat 4 are in contact. Then rotate the mounting rings 3 or the ball seat 4 180° so that the hook 305 is inserted into the retaining ring 402. Finally, insert the locking screw 307 into the first threaded hole 306 and rotate it until it is inserted into the second threaded hole 404 to fix the mounting rings 3 and the ball seat 4. The installation is completed. When disassembly is required, simply unscrew the locking screw 307 and rotate the mounting rings 3 or the ball seat 4 in the opposite direction to separate the two.

[0034] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A quick-release ball joint assembly, comprising: A ball head (1) is characterized in that a ball head (2) is fixedly connected to the bottom of the ball head (1), a mounting ring (3) is wrapped around the top of the ball head (2), a hook (305) is fixedly connected to the bottom of the mounting ring (3), a ball seat (4) is provided below the ball head (2), a fixing groove (401) is provided at the top of the ball seat (4), and a retaining ring (402) is fixedly connected to the side of the fixing groove (401).

2. The quick-release ball joint assembly according to claim 1, characterized in that, The bottom of the inner ring of the mounting ring (3) is indented.

3. The quick-release ball joint assembly according to claim 2, characterized in that, The mounting ring (3) is made up of two semi-circular pieces joined together.

4. A quick-release ball joint assembly according to claim 3, characterized in that, The mounting ring (3) has an inwardly opening movable hole (301), and a spring (304) is provided inside the movable hole (301). A connecting rod (302) is provided near the outer side of the movable hole (301), and a pressure block (303) is fixedly connected to the connecting rod (302) outward.

5. A quick-release ball joint assembly according to claim 1, characterized in that, The ball seat (4) is fixedly connected to a positioning block (403) on its side. The positioning block (403) has a threaded hole (404) through it. The mounting ring (3) has a threaded hole (306) at the position corresponding to the threaded hole (404). A locking screw (307) is rotatably installed inside the threaded hole (306) and the threaded hole (404).

6. A quick-release ball joint assembly according to claim 1, characterized in that, The ball seat (4) has an oil injection hole (405) on its side.