CN210565730U - Dust-proof sleeve for automobile chassis ball head assembly - Google Patents
Dust-proof sleeve for automobile chassis ball head assembly Download PDFInfo
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- CN210565730U CN210565730U CN201920634237.3U CN201920634237U CN210565730U CN 210565730 U CN210565730 U CN 210565730U CN 201920634237 U CN201920634237 U CN 201920634237U CN 210565730 U CN210565730 U CN 210565730U
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- side wall
- opening
- upper half
- gap
- half part
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Abstract
A dustproof sleeve for an automobile chassis ball head assembly comprises an upper half part, wherein the lower end of the upper half part is provided with a middle part, and the lower end of the middle part is provided with a lower half part; the upper half part is of an inverted funnel-shaped structure and comprises a side wall, the upper end of the side wall is provided with a circular gap A, the side wall extends obliquely upwards at the gap A to form an upper extending part, a cavity defined by the upper extending part is a first opening, and the inner diameter of the upper end of the first opening is larger than that of the lower end of the first opening; the middle part is columnar, a circular gap B is arranged on the side surface of the middle part, the side wall of the middle part horizontally extends outwards at the gap B to form a middle extending part, and a cavity enclosed by the middle extending part is a second opening. The utility model provides a pair of dirt proof boot is used to vehicle chassis bulb subassembly, simple structure easily leads to whole bulb round pin casing and wraps up to interference fit is all adopted to two openings, and the opening part adopts the inclination design that is fit for bulb subassembly screw rod, has dustproof effectual, the installation firm, the simple efficient effect of assembly.
Description
The technical field is as follows:
the utility model belongs to the technical field of a car moving part is dustproof and specifically relates to a dirt proof boot that is used for car chassis bulb subassembly is related to.
Background art:
the ball head pin in each ball head component of the chassis swings frequently in the driving process of the existing automobile, if impurities such as dust enter the spherical matching surface of the ball head pin, the abrasion of the matching surface is aggravated, the service life of the ball head pin is shortened, and therefore a dustproof sleeve is required to be installed between the ball head pin and the ball head base to prevent the dust from entering. As shown in fig. 1, in the conventional dust boot, a groove is formed at the lower end of the dust boot, the groove is installed in a clamping groove at a corresponding position of an outer shell of the ball head base, and then the groove is fastened by using a clamping ring, and the upper part of the groove is also fastened by using the clamping ring. The design has the defects of unsatisfactory dustproof effect, frequent swinging of the ball stud, easy loosening of the clamping ring due to long-time swinging, and complicated and long-time installation due to the fact that a special tool is required for installing the traditional dustproof sleeve.
The invention content is as follows:
in order to overcome the defects, the invention provides a dustproof sleeve for an automobile chassis ball head assembly.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a dustproof sleeve for an automobile chassis ball head assembly comprises an upper half part, wherein the lower end of the upper half part is provided with a middle part, and the lower end of the middle part is provided with a lower half part;
the upper half part is of an inverted funnel-shaped structure and comprises a side wall, the upper end of the side wall is provided with a circular gap A, the side wall extends obliquely upwards at the gap A to form an upper extending part, a cavity defined by the upper extending part is a first opening, and the inner diameter of the upper end of the first opening is larger than that of the lower end of the first opening;
the middle part is columnar, a circular gap B is arranged on the side surface of the middle part, the side wall of the middle part horizontally extends outwards at the gap B to form a middle extending part, and a cavity enclosed by the middle extending part is a second opening.
The connection part of the upper extension part and the side wall of the upper half part forms a concave part.
The lower part of the upper half part extends outwards horizontally to form a platform, and the end part of the platform is connected with the side wall of the middle part.
And after the dustproof sleeve is installed, lubricating grease is arranged in the inner cavity of the dustproof sleeve.
The dust cover is of an integrally formed structure, and the adopted material is natural rubber.
Due to the adoption of the technical scheme, the invention has the following advantages:
the utility model provides a pair of dirt proof boot is used to vehicle chassis bulb subassembly, simple structure easily leads to whole bulb round pin casing and wraps up to interference fit is all adopted to two openings, and the opening part adopts the inclination design that is fit for bulb subassembly screw rod, has dustproof effectual, the installation firm, the simple efficient effect of assembly.
Description of the drawings:
FIG. 1 is a schematic structural view of a conventional dust boot;
fig. 2 is a schematic structural diagram of the present invention;
fig. 3 is a cross-sectional view of the present invention;
fig. 4 is a schematic view of the use of the present invention;
in the figure: 1. an upper half part; 2. a middle part; 3. a lower half; 4. a first opening; 5. a second opening; 6. an upper extension; 7. a middle extension; 8. a platform; 9. a recessed portion; 10. a side wall.
The specific implementation mode is as follows:
the present invention will be explained in more detail by the following examples, which are intended to disclose all changes and modifications within the scope of the present invention, and the present invention is not limited to the following examples;
the dustproof sleeve for the automobile chassis ball head assembly comprises an upper half part 1, wherein the lower end of the upper half part 1 is provided with a middle part 2, and the lower end of the middle part 2 is provided with a lower half part 3;
the upper half part 1 is of an inverted funnel-shaped structure and comprises a side wall 10, a circular notch A is arranged at the upper end of the side wall 10, the side wall 10 extends obliquely upwards at the notch A to form an upper extending part 6, a cavity enclosed by the upper extending part 6 is a first opening 4, the inner diameter of the upper end of the first opening 4 is larger than that of the lower end of the first opening, as shown in fig. 4, the diameter of a connecting rod of the ball pin is smaller at the bottom and larger at the top, so that the first opening 4 is set to be larger than that of the lower part, the connecting rod is more closely attached to the connecting rod, and the connecting rod is in interference fit with the first opening 4, so that the sealing effect is better, and the size of the first opening 4;
As shown in fig. 2, a concave portion 9 is formed at the connection position of the upper extending portion 6 and the upper half portion sidewall 10, because the ball pin continuously swings during use, and the upper extending portion 6 clings to the connecting rod of the ball pin and swings therewith, the connection position of the upper half portion sidewall 10 and the upper extending portion 6 is continuously extruded or stretched, so that the upper half portion sidewall 10 is continuously extruded or stretched, as time goes on, the sidewall 10 is easily fatigued or aged, so that the sidewall 10 is damaged, and the concave portion 9 can relieve the extrusion or stretching of the upper half portion 1 caused by the continuous swing of the ball pin, for example, when the ball pin swings left, the upper extending portion 6 on the left side is close to the left sidewall, the left side is in an extruded state, so that the concave portion 9 on the left side is depressed inwards, so that the force is not applied to the left sidewall 10, and it is ensured that the left, the fatigue phenomenon can not be generated, the upper extending part 6 on the right side is far away from the side wall on the right side at the moment, the right side is in a stretching state, the depressed part 9 is stressed to be pulled outwards, the force can not be exerted on the side wall 10 on the right side, the side wall 10 on the right side can not be stretched, and the fatigue phenomenon can not be generated. In order to adapt to the continuous stress of the concave part 9, the thickness of the inner surface of the joint of the side wall 10 and the upper extending part 6 is larger than that of the periphery, so that the strength of the concave part 9 can be increased, and the inner surface also serves as a second sealing defense line at the first opening 4.
The lower part of the upper half part 1 extends outwards horizontally to form a platform 8, the end part of the platform 8 is connected with the side wall of the middle part 2, as shown in fig. 4, the platform 8 can be used for positioning a ball head base, and the correct installation of the protective sleeve is ensured.
After the dustproof sleeve is installed, lubricating grease is arranged in the inner cavity of the dustproof sleeve, so that lubricating grease is always arranged on the spherical contact surface of the ball pin, abrasion during movement is reduced, and the service life is prolonged.
The dust cover is an integrated structure, the adopted material is natural rubber, and only one end of the ball head pin assembly needs to be inserted into one opening and pulled out from the other opening during installation, and the position of the ball head base is adjusted.
The details of the above are not described in detail since they are prior art.
Claims (5)
1. The utility model provides a dirt proof boot for vehicle chassis bulb subassembly which characterized in that: comprises an upper half part (1), a middle part (2) is arranged at the lower end of the upper half part (1), and a lower half part (3) is arranged at the lower end of the middle part (2);
the upper half part (1) is of an inverted funnel-shaped structure and comprises a side wall (10), a circular gap A is formed in the upper end of the side wall (10), the side wall (10) extends obliquely upwards at the gap A to form an upper extending part (6), a cavity enclosed by the upper extending part (6) is a first opening (4), and the inner diameter of the upper end of the first opening (4) is larger than that of the lower end of the first opening;
the middle part (2) is columnar, a circular notch B is formed in the side face of the middle part, the side wall of the middle part (2) extends outwards horizontally at the notch B to form a middle extending part (7), and a cavity enclosed by the middle extending part (7) is just the second opening (5).
2. The boot seal for an automotive chassis ball assembly according to claim 1, wherein: and a concave part (9) is formed at the joint of the upper extending part (6) and the upper half side wall (10).
3. The boot seal for an automotive chassis ball assembly according to claim 1, wherein: the lower part of the upper half part (1) extends outwards horizontally to form a platform (8), and the end part of the platform (8) is connected with the side wall of the middle part (2).
4. The boot seal for an automobile chassis ball assembly according to any one of claims 1 to 3, wherein: and after the dustproof sleeve is installed, lubricating grease is arranged in the inner cavity of the dustproof sleeve.
5. The boot seal for an automobile chassis ball assembly according to claim 4, wherein: the dust cover is of an integrally formed structure, and the adopted material is natural rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920634237.3U CN210565730U (en) | 2019-05-06 | 2019-05-06 | Dust-proof sleeve for automobile chassis ball head assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920634237.3U CN210565730U (en) | 2019-05-06 | 2019-05-06 | Dust-proof sleeve for automobile chassis ball head assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210565730U true CN210565730U (en) | 2020-05-19 |
Family
ID=70641082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920634237.3U Active CN210565730U (en) | 2019-05-06 | 2019-05-06 | Dust-proof sleeve for automobile chassis ball head assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210565730U (en) |
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2019
- 2019-05-06 CN CN201920634237.3U patent/CN210565730U/en active Active
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