Ball pin base

Abstract

The utility model discloses a ball stud base which comprises a base abutment, a ball head sleeve fixedly sleeved in the base abutment and a sealing cover fixedly installed at the bottom of the base abutment, an internal thread is arranged in the base abutment, an external thread matched with the internal thread is arranged outside the ball head sleeve, and the sealing cover is fixedly installed at the bottom of the base abutment. An annular step is integrally formed on the base abutment, a sleeve foot riveted at the annular step is arranged at the bottom of the ball head sleeve, and a turned-over edge is formed at the annular step of the ball head sleeve. The ball pin penetrates through the sleeve opening of the ball sleeve to enter the ball sleeve, the outer wall of the ball sleeve is in contact with the plastic part, acting force can be generated between the ball pin and the ball sleeve during use, and the yield force of the ball sleeve is higher than that of the base platform, so that the interior of the ball sleeve cannot deform, the inner diameter of the ball sleeve is increased, and the service life of the ball sleeve is prolonged. And therefore, the ball pin is pulled off.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing and processing technology, and in particular to a ball head pin base. Background Technology

[0002] Ball joints play an important role in automotive independent suspension systems, primarily functioning to enable the wheels to move vertically and to steer.

[0003] Under external force, the ball joint pin and the inner wall of the ball seat are in rigid contact. After long-term use, the ball seat undergoes certain deformation, leading to the ball joint pin being pulled out. This is mainly because current ball seats are made of aluminum alloy, most commonly 6082 aluminum alloy. Due to its low yield strength, it has a relatively high probability of deformation after a certain service life. Therefore, a technical solution is needed to address this problem. Utility Model Content

[0004] The purpose of this utility model is to provide a ball head pin base, which has the advantage of preventing the ball head pin from exerting force on the ball seat and causing the ball seat to deform.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A ball head pin base includes a base platform, a ball head sleeve fixedly fitted inside the base platform, and a cover fixedly installed at the bottom of the base platform. The yield strength of the ball head sleeve is greater than the yield strength of the base platform. The base platform has an internal thread, and the ball head sleeve has an external thread that is threadedly engaged with the internal thread. The base platform is integrally formed with an annular step, and the bottom of the ball head sleeve has a foot riveted to the annular step. The foot forms a flange at the annular step.

[0007] Using the above technical solution, the ball head pin includes a pin shaft and a ball integrally formed with the pin shaft. The pin shaft of the ball head pin passes through the bottom of the base platform and enters its interior, and then exits from the interior of the base platform, so that the ball of the ball head pin is embedded in the ball head sleeve. Thus, during use, a force will be generated between the ball head pin and the ball head sleeve. Since the yield force of the ball head sleeve is higher than that of the base platform, the interior of the ball head sleeve will not deform, causing its inner diameter to increase, thereby causing the ball head pin to be pulled out.

[0008] Preferably, the ball head sleeve includes a sleeve opening and a sleeve body, a supporting step is provided between the sleeve opening and the sleeve body, the upper part of the base supports the supporting step, the sleeve foot is integrally formed with the sleeve body, an abutting part is formed between the sleeve body and the sleeve foot, the base is provided with an abutting step, and the abutting part abuts against the abutting step.

[0009] The above technical solution increases the connectivity between the ball head sleeve and the base platform.

[0010] Preferably, the sleeve is provided with a wedge-shaped surface.

[0011] Using the above technical solution, the part of the sleeve with the wedge-shaped surface can be folded outward to form a flange. The flange is riveted to the annular step, increasing the tightness between the ball head sleeve and the base platform.

[0012] Preferably, a plastic part is provided inside the ball head sleeve.

[0013] By adopting the above technical solution, the ball of the ball head pin contacts the plastic part, avoiding direct contact between the ball of the ball head pin and the ball head sleeve. Thus, when the two move relative to each other, the friction generated between them will not cause wear to either of them.

[0014] Preferably, the ball head sleeve has a notch on its exterior for installing a dust cover.

[0015] By adopting the above technical solution, the opening edge of the dust cover can be embedded in the recess, so that the dust cover is connected with the ball head sleeve. The dust cover covers the opening of the ball head sleeve to prevent dust from entering its interior.

[0016] Preferably, the base platform is also provided with a pressure foot at the bottom, which is riveted to the surface of the cover.

[0017] Using the above technical solution, the cover is inserted into the base from the bottom, and the pressure foot of the base is folded inward and riveted to press the cover plate to prevent the cover plate from separating from the base. Attached Figure Description

[0018] Figure 1 This is a cross-sectional schematic diagram of an embodiment.

[0019] Reference numerals in the attached drawings: 1. Base platform; 2. Annular step; 3. Sleeve foot; 4. Sleeve opening; 5. Sleeve body; 6. Support step; 7. Wedge-shaped surface; 8. Recess; 9. Pressing foot; 10. Abutting part; 11. Abutting step. Detailed Implementation

[0020] The following are merely preferred embodiments of this utility model, and the scope of protection is not limited to these embodiments. All technical solutions falling within the scope of this utility model should be considered within the protection scope of this utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this utility model should also be considered within the protection scope of this utility model.

[0021] A ball head pin base includes a base platform 1, a ball head sleeve, and a cover. The base platform 1 has an internal thread, and a retaining ring is integrally formed on the inner wall of the base platform 1. The inner diameter of the retaining ring is smaller than the inner diameter of the base platform 1, thereby forming an annular step 2 and an abutment step 11 between the side of the base platform 1 and the two ends of the retaining ring, respectively. A pressure foot 9 is provided at the bottom of the base platform 1.

[0022] The yield force of the ball head sleeve is greater than that of the base 1. The ball head sleeve includes a sleeve opening 4 and a sleeve body 5. The outer wall of one end of the sleeve opening 4 is integrally formed with an outer edge, and a notch 8 for installing a dust cover is formed between the outer edge and the base 1. The sleeve body 5 is integrally formed at the other end of the sleeve opening 4. The outer diameter of the sleeve body 5 is larger than that of the sleeve opening 4, thus forming a support step 6 at the connection between the sleeve opening 4 and the sleeve body 5. The sleeve body 5 is provided with an external thread that is threaded to the internal thread of the base 1. A plastic part is snapped into the inside of the sleeve body 5. The bottom of the sleeve body 5 is integrally formed with an annular sleeve foot 3. The inner diameter of the sleeve foot 3 is smaller than that of the sleeve body 5, thus forming a stop part 10 between the sleeve body 5 and the sleeve foot 3. The inner wall of the opening of the sleeve foot 3 is provided with a wedge-shaped surface 7. In the section of the wedge-shaped surface 7, the inner diameter of the sleeve foot 3 gradually increases from the inside to the outside.

[0023] The sleeve body 5 and the sleeve foot 3 of the ball head sleeve are located inside the base platform 1. The upper part of the opening of the base platform 1 supports the support step 6. The end of the sleeve opening 4 and the sleeve body 5 are threadedly connected to the inner wall of the base platform 1. The abutting part 10 abuts against the abutting step 11. The sleeve foot 3 is riveted into the inner side of the ring opening of the annular retaining ring. The wedge-shaped surface 7 of the sleeve foot 3 is located outside the retaining ring, and the part of the sleeve foot 3 with the wedge-shaped surface 7 can be folded outward to form a flange. The flange is riveted to the annular step 2.

[0024] The cover includes a cover plate and a plug. The cover is located at the bottom of the base 1. The pressure foot 9 of the base 1 is riveted to the surface of the cover plate of the cover. The plug of the cover enters its interior through the wedge-shaped surface 7 of the sleeve foot 3.

[0025] Working principle: The ball head pin consists of a pin shaft and a ball integrally formed with the pin shaft. The pin shaft of the ball head pin passes through the bottom of the base 1 and enters its interior, then exits from the interior of the base 1. The ball of the ball head pin is embedded inside the sleeve 5, and the outer wall of the ball is in contact with the plastic part. Then, the cap is inserted into the interior of the base 1 from the bottom. The cap end passes through the wedge-shaped surface 7 of the sleeve foot 3 and enters its interior. The cap plate exerts a force on the wedge-shaped surface 7 of the sleeve foot 3, causing it to fold outward and rivet against the annular step 2. Then, the pressure foot 9 of the base 1 is folded inward and rivet against the cap plate. During use, a force is generated between the ball head pin and the ball head sleeve. Since the yield strength of the ball head sleeve is higher than that of the base 1, the interior of the ball head sleeve will not deform, causing its inner diameter to increase, thereby causing the ball head pin to pull out.

Claims

1. A ball-head pin base, characterized in that, The device includes a base platform (1), a ball head sleeve fixedly fitted inside the base platform (1), and a cover fixedly installed at the bottom of the base platform (1). The yield force of the ball head sleeve is greater than the yield force of the base platform (1). The base platform (1) has an internal thread inside, and the ball head sleeve has an external thread that is threadedly engaged with the internal thread. The base platform (1) is integrally formed with an annular step (2). The ball head sleeve has a foot (3) riveted to the annular step (2) at its bottom. The foot (3) forms a flange at the annular step (2).

2. The ball head pin base according to claim 1, characterized in that, The ball head sleeve includes a sleeve opening (4) and a sleeve body (5). A support step (6) is provided between the sleeve opening (4) and the sleeve body (5). The upper part of the base platform (1) supports the support step (6).

3. A ball-head pin base according to claim 1, characterized in that, The sleeve (3) is provided with a wedge-shaped surface (7).

4. A ball-head pin base according to claim 1, characterized in that, A plastic component is installed inside the ball head sleeve.

5. A ball-head pin base according to claim 1, characterized in that, The ball head sleeve has a notch (8) on the outside for installing a dust cover.

6. A ball-head pin base according to claim 1, characterized in that, The base platform (1) is also provided with a pressure foot (9) at the bottom, which is riveted to the surface of the cover.

7. A ball-head pin base according to claim 2, characterized in that, Abutting part (10) is formed between the sleeve body (5) and the sleeve foot (3), and the base platform (1) is provided with abutting step (11), and the abutting part (10) abuts against the abutting step (11).

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