Swing arm steering ball joint

Abstract

The utility model provides a kind of swing arm steering ball head, including ball head pin and ball head seat, the ball head pin is composed of upper side's ball bar connection lower side's ball head part, the ball head seat is provided with locating hole, the locating hole is provided with the ball bowl containing the ball head part, the bottom of the locating hole is provided with the cover of abutment with the ball bowl, the ball bar is provided with abutment ring, the outer wall of the upper end of the ball head seat is provided with clamping groove, the dust cover is clamped with dust cover at the clamping groove place, the dust cover is attached to the ball bar and abuts to the abutment ring.The utility model has the advantages that: the lower side of dust cover uses the way of clamping, the upper side of dust cover only needs to be sleeved into ball bar and abut to abutment ring, convenient installation.

Description

Technical Field

[0001] This utility model relates to the technical field of steering ball joints, and in particular to a rocker arm steering ball joint. Background Technology

[0002] As a core transmission component of the steering system in ATVs and mountain bikes, the steering ball joint directly plays a crucial role in transmitting steering force and ensuring precise handling. Its performance directly affects the vehicle's driving safety and service life. A dust cover prevents sand and mud from seeping into the ball joint seat, causing contamination and loss of the lubricant between the ball joint head and the ball cup, accelerating internal wear and corrosion, and thus shortening the component's lifespan. Currently, most steering ball joint dust covers use a top-and-bottom clamping method. After the lower side of the dust cover is clamped to the ball joint seat, the upper side is then clamped. Because the installed dust cover requires compression, clamping the upper side is difficult, increasing the installation complexity. Summary of the Invention

[0003] In view of this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a swing arm steering ball joint.

[0004] This utility model provides a ball joint for a swing arm steering, including a ball joint pin 1 and a ball joint seat 2. The ball joint pin 1 consists of an upper ball rod connected to a lower ball head. The ball joint seat 2 is provided with a positioning hole, and a ball cup 3 for accommodating the ball head is provided in the positioning hole. A cover 6 that abuts against the ball cup 3 is provided at the bottom of the positioning hole. An abutment ring 1.1 is provided on the ball rod. A slot is provided on the outer wall of the upper end of the ball joint seat 2. A dust cover 4 is secured in the slot by a retaining ring 5. The dust cover 4 is attached to the ball rod and abuts against the abutment ring 1.1.

[0005] Furthermore, the ball bowl 3 is composed of an upper ball ring connected to a lower support ring. The outer wall of the ball ring is attached to the spherical inner wall of the positioning hole, the support ring abuts against the cover 6, and the upper end of the ball ring has vertical grooves evenly distributed around its axis.

[0006] Furthermore, the upper end of the cue stick is provided with an annular mounting groove 1.2.

[0007] Furthermore, the outer wall at the lower end of the ball head seat 2 is provided with an annular protrusion 2.1.

[0008] Furthermore, the outer wall of the ball head seat 2 is evenly distributed with stripes 2.2 along its axis circumferentially.

[0009] Furthermore, the center of the cover 6 protrudes downward to form a boss.

[0010] Furthermore, the ball bowl 3 is made of plastic.

[0011] The advantages of this utility model are as follows: the lower side of the dust cover is secured by a snap-fit ​​mechanism, and the upper side of the dust cover only needs to be inserted into the ball joint and then pressed against the retaining ring, making installation convenient; the plastic ball joint cup has low friction characteristics, which reduces the rotational resistance between the ball head and the inner wall of the ball joint cup, making steering operation lighter and smoother and avoiding jamming; on the other hand, the plastic has a certain degree of elasticity, which can buffer the hard contact impact between the ball head and the ball joint seat, reducing abnormal noise during driving; the lower side of the dust cover is secured by a retaining ring, and the upper side of the dust cover is against the ball joint and against the retaining ring, which can completely prevent external mud, sand, dust and water from entering the ball joint seat; the vertical groove is designed to facilitate the insertion of the ball head into the ball joint ring, the lower end face of the support ring abuts against the cap, and the side of the support ring abuts against the inner wall of the positioning hole; the annular protrusion can withstand the lateral force during steering; the stripe design can increase the heat dissipation area, thereby accelerating heat dissipation; the boss can avoid the ball head protruding from the bottom of the ball joint cup. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present utility model; Figure 2 This is the front view of the present invention; Figure 3 for Figure 2 AA section view; Figure 4 This is a schematic diagram of the structure of the ball bowl of this utility model. Detailed Implementation

[0013] The present invention will now be described in detail with reference to the accompanying drawings.

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0015] See Figures 1 to 4This utility model provides a ball joint for a rocker arm steering mechanism, comprising a ball joint pin 1 and a ball joint seat 2. The ball joint pin 1 consists of an upper ball joint connecting a lower ball joint. The ball joint pin only rotates and does not vibrate up and down. The upper end of the ball joint has an annular mounting groove 1.2. The ball joint seat 2 has a positioning hole, and a ball cup 3 for accommodating the ball joint is provided in the positioning hole. The ball cup 3 is made of plastic. The plastic ball cup has low friction characteristics, which can reduce the rotational resistance between the ball joint and the inner wall of the ball cup, making the steering operation smoother. The movement is lighter and smoother, avoiding jamming; on the other hand, the plastic has a certain elasticity, which can buffer the impact of hard contact between the ball head and the ball head seat, reducing abnormal noise during driving. The bottom of the positioning hole is provided with a cover 6 that abuts against the ball cup 3. The cue is provided with a retaining ring 1.1. The outer wall of the upper end of the ball head seat 2 is provided with a slot. The slot is secured with a dust cover 4 by a retaining ring 5. The dust cover 4 is close to the cue and abuts against the retaining ring 1.1. After the dust cover is installed, the folding buffer part on the lower side of the dust cover will be compressed. The lower side of the dust cover is secured in the slot by a retaining ring, and the upper side of the dust cover only needs to be slipped onto the cue stick and pressed against the retaining ring (the dust cover is made of rubber, and the round hole at the top of the dust cover can deform and pass through the retaining ring). There is no need to set a retaining ring at the dust cover of the cue stick, which is convenient for installation. Moreover, the lower side of the dust cover is secured by the retaining ring, and the upper side of the dust cover is close to the cue stick and presses against the retaining ring, which can completely prevent external mud, sand, dust and water from entering the interior of the cue head.

[0016] The ball-shaped cup 3 consists of an upper ball ring connected to a lower support ring. The outer wall of the ball ring abuts against the spherical inner wall of the positioning hole, and the support ring abuts against the cover 6. Vertical grooves are evenly distributed around the upper end of the ball ring along its axis. The vertical grooves are designed to facilitate the insertion of the ball head into the ball ring. The lower end face of the support ring abuts against the cover, and the side of the support ring abuts against the inner wall of the positioning hole.

[0017] The lower end of the ball joint 2 has an annular protrusion 2.1 on its outer wall. The annular protrusion can withstand the lateral force during turning, and it is located at the bearing position of the ball joint. The edges of the annular protrusion are rounded.

[0018] The outer wall of the ball joint 2 is evenly distributed with stripes 2.2 along its axis. The stripe arrangement can increase the heat dissipation area, thereby accelerating heat dissipation.

[0019] See Figure 2 , Figure 3 The center of the cap 6 protrudes downwards to form a boss. The boss can avoid the ball head extending from the bottom of the bowl.

[0020] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A ball joint for steering with a swing arm, characterized in that: The device includes a ball head pin and a ball head seat. The ball head pin consists of an upper club and a lower ball head. The ball head seat has a positioning hole and a ball cup that accommodates the ball head. A cap that abuts against the ball cup is located at the bottom of the positioning hole. A retaining ring is provided on the club. A groove is formed on the outer wall of the upper end of the ball head seat. A dust cover is secured to the groove by a retaining ring. The dust cover is against the club and abuts against the retaining ring. The ball cup consists of an upper ball ring and a lower support ring. The outer wall of the ball ring abuts against the spherical inner wall of the positioning hole. The support ring abuts against the cap. Vertical grooves are evenly distributed around the upper end of the ball ring along its axis.

2. The rocker arm steering ball joint as described in claim 1, characterized in that: The upper end of the cue stick is provided with an annular mounting groove.

3. The rocker arm steering ball joint as described in claim 1, characterized in that: The outer wall at the lower end of the ball joint is provided with an annular protrusion.

4. The rocker arm steering ball joint as described in claim 1, characterized in that: The outer wall of the ball head is uniformly covered with stripes along its axis.

5. A rocker arm steering ball joint as described in claim 1, characterized in that: The center of the cover protrudes downwards to form a boss.

6. A rocker arm steering ball joint as described in claim 1, characterized in that: The ball bowl is made of plastic.

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