CN217713329U - Dustproof device for spherical hinge - Google Patents
Dustproof device for spherical hinge Download PDFInfo
- Publication number
- CN217713329U CN217713329U CN202221655751.3U CN202221655751U CN217713329U CN 217713329 U CN217713329 U CN 217713329U CN 202221655751 U CN202221655751 U CN 202221655751U CN 217713329 U CN217713329 U CN 217713329U
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- China
- Prior art keywords
- fastener
- ball
- cover body
- spherical hinge
- dust cover
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- Pivots And Pivotal Connections (AREA)
Abstract
The utility model belongs to the technical field of the ball pivot, specifically disclose a dust keeper for ball pivot, the ball pivot includes ball round pin and ball round pin seat, dust keeper includes dust cover body, first fastener and second fastener, the dust cover body adopts the structure that both ends opening and centre are the cavity, the one end of dust cover body is fixed in through first fastener is sealed on the ball round pin, other one end is fixed in through second fastener is sealed on the ball round pin seat, first fastener and/or second fastener adopt the elastomeric element who seals the ring structure. The utility model discloses a dust keeper for ball pivot, the leakproofness is good, and dust cover body long service life, and sealed difficult inefficacy.
Description
Technical Field
The utility model relates to a ball pivot technical field particularly, relates to a dust keeper for ball pivot.
Background
The dustproof structure of the existing spherical hinge mainly adopts a fixing mode of a clamping ring or a clamping spring between a dustproof cover and a spherical pin and between the dustproof cover and a spherical pin seat, the dustproof cover and the spherical pin part are locked or over-tightened easily in the fixing mode, and the dustproof cover is twisted or broken in the driving process. Some dust covers have poor sealing performance, the phenomenon of sand feeding occurs, and meanwhile, the dust covers break or have poor sealing performance during driving, so that the quality qualification rate is reduced, and the after-sale cost is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a problem that sealed inefficacy appears easily in current spherical hinge structure dust cover provides a dust keeper for spherical hinge, can effectively solve the dust cover distortion or break to the sealed inefficacy problem that leads to effectively improves the life of sealed cowling.
The utility model discloses a following technical scheme realizes:
the utility model provides a dust keeper for ball pivot, the ball pivot includes ball round pin and ball round pin seat, dust keeper includes dust cover body, first fastener and second fastener, the dust cover body adopts both ends opening and middle structure for the cavity, the one end of dust cover body is fixed in through first fastener is sealed on the ball round pin, the other end is fixed in through second fastener is sealed on the ball round pin seat, first fastener and/or second fastener adopt the elastomeric element who seals the ring structure.
Optionally, the elastic component of the closed circular ring structure is an annular spiral spring.
Optionally, the annular coil spring is made of metal.
Optionally, the annular helical spring is of a structure in which an inner layer is made of a metal material and an outer layer is coated with a flexible material.
Optionally, the first fastening member is an elastic component of the closed ring structure, and the second fastening member is a snap spring or a collar.
Optionally, the dust cover body is made of rubber.
Optionally, the dust cover body is further provided with a reinforcing rib on the outer circumference.
Optionally, an accommodating groove for accommodating the elastic component of the closed ring structure is arranged on the ball pin and/or the ball pin seat, and the accommodating groove adopts a structure that the cross section of the groove profile is arc-shaped.
Optionally, the radius of curvature of the groove profile of the receiving groove is equal to the radius of the cross-section circle of the elastic member of the closed-loop structure.
The technical scheme of the utility model following beneficial effect has at least:
the utility model discloses a dust keeper through the fastener adoption with the dust cover have elastic closed ring structure, can improve the contact surface atress dispersion of dust cover body and contact member on the one hand, even, and the contractility is stronger on the other hand, and it is also more convenient to install, has increased the sealed continuation of dust cover body and contact member simultaneously.
Drawings
Fig. 1 is a schematic structural view of a dustproof device according to embodiment 1 of the present invention;
fig. 2 is a structural view of an annular coil spring according to embodiment 1 of the present invention;
fig. 3 is a schematic structural view of a dustproof device according to embodiment 2 of the present invention;
icon: 110-ball pin, 120-ball pin seat, 200-dust cover body, 201-reinforcing rib, 300-first fastener and 400-second fastener.
Detailed Description
Example 1
Referring to fig. 1 and 2, the dustproof device for the spherical hinge of the present embodiment may be used in most types of spherical hinges, spherical joints, ball bearings, and other structures, and is particularly suitable for automobile spherical hinges. The ball hinge comprises a ball pin 110 and a ball pin seat 120, and the ball pin 110 and the ball pin seat 120 are provided with accommodating grooves of annular structures for accommodating fasteners for fixing the dustproof device.
In this embodiment, the dust-proof device includes the dust cover body 200, the first fastener 300 and the second fastener 400, the dust cover body 200 adopts the structure that both ends open-ended and middle are the cavity, and the rubber material is chooseed for use to the material, and middle cavity internal diameter is great, and the bore at both ends is less to form a middle big, the little utricule structure in both ends, in order to improve its intensity, still be provided with the strengthening rib 201 in the outer circumference of dust cover body 200, improve its life.
One end of the dust cover body 200 is fixed on the ball pin 110 through the first fastener 300 in a sealing manner, and the other end is fixed on the ball pin seat 120 through the second fastener 400 in a sealing manner, in this embodiment, the first fastener 300 adopts an elastic component of a closed circular ring structure, the second fastener 400 adopts a matching structure of a snap spring or a retainer ring, the elastic component of the closed circular ring structure adopts an annular spiral spring, and other elastic components with similar elasticity and closed circular rings can be adopted, for example, the elasticity is better, and a relatively thick rubber band and the like are provided. In the matching mode of the fastener of the embodiment, the snap spring or the snap ring is used on the ball pin seat 120, so that a good fastening effect can be ensured, and the position is relatively fixed due to the ball pin seat 120, so that the phenomenon of distortion or breakage of a dust cover is not easy to occur at the fastening position, and on the ball pin 110, the ball pin 110 needs to move in a steering manner, so that the movement is frequent, and the annular spiral spring with certain elasticity is adopted, so that on one hand, the elasticity of the annular spiral spring is utilized, the installation is convenient, and when the end of the ball pin 110 is installed, the annular spiral spring can be conveniently expanded, and can be sleeved on the ball pin 110, and the matching mode is more convenient compared with the installation modes of the snap ring and the snap spring; on the other hand, the annular spiral spring utilizes the characteristic of larger pipe diameter, the stress is more dispersed, and the stress is concentrated like a clamp spring or a clamping ring, so that the stress of the annular spiral spring is more uniform, the dust cover body 200 is not easy to distort or break, and the sealing continuity of the dust cover body 200 and a contact part is increased, namely the durable sealing.
In this embodiment, annular coil spring adopts the inlayer to be metal material, outer cladding flexible material's structure, and the metal material of inlayer has guaranteed that annular coil spring has fine elasticity, and outer cladding flexible material, like plastic, varnished skin isotructure, protection dust cover body 200 that can be fine is not destroyed.
The cross section of the groove profile of the receiving groove of the ball pin 110 is circular arc-shaped, and further, the curvature radius of the groove profile of the receiving groove is equal to the cross section radius of the elastic component of the closed ring structure. When annular coil spring placed wherein like this, can guarantee that it can impress dust cover body 200 in the holding tank, the laminating degree can be better, and the leakproofness is better, and sealed area is bigger.
Example 2
Referring to fig. 2, the present embodiment is different from embodiment 1 in that:
the first fastener 300 and the second fastener 400 are both elastic members of a closed circular ring structure, that is, the fastening position of the dust cover body 200 and the ball pin 110, and the fastening position of the dust cover body 200 and the ball pin seat 120 are both elastic members of a closed circular ring structure, that is, the annular coil spring in embodiment 1 may be used.
The structure of this embodiment, both ends homoenergetic enough guarantee better sealing performance and simple to operate nature, but this kind of connected mode exists fastening strength and is slightly weaker than the fastening strength of jump ring, rand, so applicable in some rotation range is little, the low use occasion of rotational frequency.
Claims (9)
1. The utility model provides a dust keeper for ball pivot, the ball pivot includes ball round pin and ball key seat, dust keeper includes dust cover body, first fastener and second fastener, the dust cover body adopts the structure that both ends opening and centre are the cavity, the one end of dust cover body is fixed in through first fastener is sealed on the ball round pin, the other end is fixed in through the second fastener is sealed on the ball key seat, its characterized in that, first fastener and/or second fastener adopt the elastomeric element who seals the ring structure.
2. The dustproof device for the spherical hinge according to claim 1, wherein the elastic member of the closed circular ring structure is an annular coil spring.
3. The dustproof device for the spherical hinge according to claim 2, wherein the annular coil spring is made of a metal material.
4. The dustproof device for the spherical hinge according to claim 3, wherein the annular helical spring has a structure that an inner layer is made of metal and an outer layer is coated with flexible material.
5. The dustproof device for the spherical hinge according to claim 1, wherein the first fastening member is an elastic member of the closed circular ring structure, and the second fastening member is a clamp spring or a clamp ring.
6. The dust keeper of claim 1, wherein the dust keeper body is made of rubber.
7. The dustproof device for the spherical hinge according to claim 1 or 6, wherein the dustproof cover body is further provided with a reinforcing rib at the outer circumference thereof.
8. The dustproof device for the spherical hinge according to claim 1, wherein the ball pin and/or the ball pin seat is/are provided with a receiving groove for receiving the elastic component of the closed ring structure, and the receiving groove is of a structure that the cross section of the groove profile is circular arc.
9. The dust keeper of claim 8, wherein the radius of curvature of the groove profile of the receiving groove is equal to the radius of the cross-section of the elastic member of the closed-loop structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221655751.3U CN217713329U (en) | 2022-06-29 | 2022-06-29 | Dustproof device for spherical hinge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221655751.3U CN217713329U (en) | 2022-06-29 | 2022-06-29 | Dustproof device for spherical hinge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217713329U true CN217713329U (en) | 2022-11-01 |
Family
ID=83775807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221655751.3U Active CN217713329U (en) | 2022-06-29 | 2022-06-29 | Dustproof device for spherical hinge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217713329U (en) |
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2022
- 2022-06-29 CN CN202221655751.3U patent/CN217713329U/en active Active
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