CN214465536U

CN214465536U - Screw-free waterproof universal joint

Info

Publication number: CN214465536U
Application number: CN202023302058.1U
Authority: CN
Inventors: 曾学仁; 许谦; 饶平; 阳刚; 张安军
Original assignee: Zhejiang Twinsel Electronic Technology Co Ltd
Current assignee: Zhejiang Twinsel Electronic Technology Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-22
Anticipated expiration: 2030-12-31

Abstract

A waterproof universal joint without screws comprises a base, a universal joint body, a face cover and a bottom cover, wherein a through hole is formed in the middle of the universal joint body, the universal joint body sequentially comprises a buckling part, a circumferential protruding part, a connecting shaft part and a ball head part, the buckling part comprises a plurality of upper inverted hook parts which extend upwards and are arranged at intervals, an anti-rotation protrusion is integrally formed on the outer wall of one upper inverted hook part, a hollow mounting column is integrally formed in the middle of the base, anti-rotation grooves are formed in the side wall of the hollow mounting column, the buckling part is clamped with the hollow mounting column, and the circumferential protruding part is abutted to the lower surface of the base; the bottom cover is provided with a spherical groove in the middle, the surface cover is provided with an anti-slip hole in the middle, the diameter of the anti-slip hole is smaller than that of the head part of the ball, the lower part of the surface cover is downwards integrally formed with a plurality of lower barb parts, the bottom cover is provided with a plurality of buckling holes, the buckling holes are distributed around the spherical groove, and the lower barb parts are clamped in the buckling holes. This practicality saves numerous and diverse processes such as lock screw, beat and glue, and the installation is simple, and waterproof performance is good.

Description

Screw-free waterproof universal joint

Technical Field

The utility model relates to a connect the field, especially relate to a waterproof universal joint of no screw.

Background

The universal joint is a joint with flexible rotation direction after installation, and is usually made of metal or plastic, and the joint can realize the function of flexible rotation in multiple directions and multiple angles by utilizing the shape characteristics of a sphere. At present, universal joint on the market, fixed mode all fixes through screw, thread basically, and the structure is more complicated, and it is convenient inadequately to assemble, needs lock the screw, beats numerous and diverse processes such as glue, and production efficiency is lower, and in addition, current universal joint waterproof performance is not good enough, can't reach good sealed effect, needs to make further improvement to current universal joint to above-mentioned problem, designs a waterproof universal joint of no screw.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the problem to prior art exists provides a waterproof universal joint that the structure is more reasonable, waterproof security performance is good, no screw.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a waterproof universal joint without screws comprises a base, a universal joint body, a face cover and a bottom cover, wherein a through hole is formed in the middle of the universal joint body, the universal joint body sequentially comprises a buckling part, a circumferential protruding part, a connecting shaft part and a ball head part, the buckling part comprises a plurality of upward extending upper barb parts arranged at intervals, an anti-rotation protrusion is integrally formed on the outer wall of one of the upper barb parts, a hollow mounting column is integrally formed in the middle of the base, anti-rotation grooves matched with the anti-rotation protrusions are formed in the side wall of the hollow mounting column, the buckling part is clamped with the hollow mounting column, and the circumferential protruding part is abutted to the lower surface of the base;

the novel golf club head comprises a bottom cover and is characterized in that a spherical groove matched with a head part is formed in the middle of the bottom cover, an anti-slip hole is formed in the middle of the face cover, the diameter of the anti-slip hole is smaller than that of the head part, a plurality of lower barb parts are integrally formed on the lower portion of the face cover downwards, a plurality of buckling holes are formed in the bottom cover, the buckling holes are distributed around the spherical groove, and the lower barb parts are clamped in the buckling holes.

Further, buckle portion lower extreme integrated into one piece has the circumference draw-in groove, the card is equipped with waterproof circle in the circumference draw-in groove, be provided with the silica gel circle between bulb portion and the face lid, the silica gel circle includes the convex ring portion of the cambered surface portion and the lower part of upper portion and bulb portion laminating, the external diameter of convex ring portion is greater than the maximum diameter of sphere recess, also be provided with waterproof circle between face lid and the bottom.

Furthermore, the outer wall of the hollow mounting column is integrally formed with a reinforcing rib.

Furthermore, the lower surface of the bottom cover is provided with a limit stop matched with the lower barb part, and the limit stop extends downwards from the edge of the buckling hole.

Furthermore, a plurality of lug parts are integrally formed on the outer surface of the lower part of the ball head part.

Further, base, universal joint body, face lid and bottom all adopt the plastic to make, waterproof circle adopts rubber to make.

Compared with the prior art, the utility model discloses the waterproof universal joint of screwless reasonable in design, the installation is simple, uses this kind of universal joint after, will save numerous and diverse processes such as lock screw, beat and glue, adopts novel fixed processing method in knot position to promote production efficiency by a wide margin, and this processing method is to place the universal head in the desktop, puts waterproof circle, buckles the processing method that the bottom can with the face lid. The universal corner joint can be waterproof, the axial direction can rotate any angle, the position can be limited, the radial ring shaft rotates at plus or minus 45 degrees, the use is convenient, and the universal corner joint has good popularization and application values.

Drawings

Fig. 1 is a perspective view of the screw-free waterproof universal joint of the present invention.

Fig. 2 is a cross-sectional view of the screw-less waterproof universal joint of the present invention.

Fig. 3 is an exploded view of the screw-less waterproof universal joint of the present invention.

Fig. 4 is an exploded view of the screwless waterproof universal joint of the present invention.

Reference numerals: 1. a base; 11. a hollow mounting post; 111. an anti-rotation groove; 12. reinforcing ribs; 2. a universal joint body; 21. a through hole; 22. a fastening part; 221. an upper barb portion; 222. an anti-rotation protrusion; 223. a circumferential clamping groove; 23. a circumferential projection; 24. a connecting shaft portion; 25. a ball head portion; 251. a bump portion; 3. a face cover; 31. anti-slip holes; 32. a lower barb portion; 4. a bottom cover; 41. a spherical groove; 42. buckling holes; 43. a limit stop block; 5. a waterproof ring; 6. a silica gel ring; 61. an arc surface portion; 62. a collar portion;

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 4, a screw-free waterproof universal joint comprises a base 1, a universal joint body 2, a face cover 3 and a bottom cover 4 which are sequentially arranged, wherein a through hole 21 which penetrates through the universal joint body 2 from top to bottom is formed in the middle of the universal joint body 2, the universal joint body 2 sequentially comprises a buckling part 22, a circumferential protruding part 23, a connecting shaft part 24 and a bulb part 25 which are integrally formed, the buckling part 22 comprises a plurality of upper barb parts 221 which extend upwards and are arranged at intervals, an anti-rotation protrusion 222 is integrally formed on the outer wall of one upper barb part 221, a hollow mounting column 11 is integrally formed in the middle of the base 1, an anti-rotation groove 111 which is matched with the anti-rotation protrusion 222 is formed in the side wall of the hollow mounting column 11, and the anti-rotation protrusion 222 is clamped in the anti-rotation groove 111, so that the universal joint body 2 cannot rotate circumferentially relative to the base 1, and stable connection is ensured; the buckling part 22 is clamped with the hollow mounting column 11, the circumferential protruding part 23 is abutted to the lower surface of the base 1 and used for limiting the degree of freedom of the vertical direction of the base 1, and the connecting shaft part 24 is of a hollow columnar structure and used for connecting the circumferential protruding part 23 and the bulb part 25.

In addition, the outer wall of the hollow mounting column 11 is integrally formed with a reinforcing rib 12, so that the structural firmness of the base 1 is ensured.

During installation, the anti-rotation protrusions 222 are aligned to the anti-rotation grooves 111, the buckling parts 22 are clamped into the hollow installation column 11, the upper barb parts 221 are arranged at intervals, the upper barb parts 221 can be close to each other when penetrating through the hollow installation column 11, after the upper barb parts 221 penetrate through the hollow installation column smoothly, the top ends of the upper barb parts 221 expand, and the barb structures can ensure firm connection.

In addition, the lower end of the buckling part 22 is integrally formed with a circumferential clamping groove 223, and a waterproof ring 5 is clamped in the circumferential clamping groove 223 and used for improving the waterproof sealing effect.

The spherical groove 41 matched with the head part 25 is arranged in the middle of the bottom cover 4, the anti-slip hole 31 is arranged in the middle of the face cover 3, the diameter of the anti-slip hole 31 is smaller than that of the head part 25, the head part 25 is prevented from slipping from the anti-slip hole 31 after installation, a plurality of lower barb parts 32 are formed on the lower portion of the face cover 3 in a downward integrated mode, a plurality of fastening holes 42 are formed in the bottom cover 4, the fastening holes 42 are distributed around the spherical groove 41, the lower barb parts 32 are connected in the fastening holes 42 in a clamped mode, and the tight connection of the face cover 3 and the bottom cover 4 can be guaranteed.

Secondly, the lower surface of bottom cover 4 and lower barb portion 32 phase-match are provided with limit stop 43, and limit stop 43 extends downwards from the edge in buckling hole 42, and limit stop 43 can guarantee that face lid 3 is more stable for bottom cover 4 circumferential connection after lower barb portion 32 blocks into buckling hole 42.

The outer surface of the lower part of the ball head part 25 is integrally formed with a plurality of convex block parts 251, so that the abrasion of the universal joint body 2 can be reduced, and the service life can be prolonged.

In addition, in this embodiment, a waterproof structure is designed, a silicone ring 6 is arranged between the globe head portion 25 and the face cover 3, the silicone ring 6 includes a cambered surface portion 61, the upper portion of which is attached to the globe head portion 25, and a convex ring portion 62, the outer diameter of which is greater than the maximum diameter of the spherical groove 41, so as to ensure that the position of the silicone ring 6 is stable after installation. A waterproof ring 5 is also provided between the face cover 3 and the bottom cover 4.

In this embodiment, the base 1, the universal joint body 2, the face cover 3 and the bottom cover 4 are all made of plastic, the waterproof ring 5 is made of rubber, and the hardness of the silica gel ring 6 is 40.

In addition, the present embodiment does not limit the specific shapes of the base 1 and the bottom cover 4, and only limits the structure of the connection between the middle of the base 1 and the bottom cover 4 and the universal joint body 2, and the structure of the base 1 and the bottom cover 4 can be replaced in actual production.

The utility model discloses waterproof universal joint of no screw uses the assembly process method who detains position + waterproof circle, and concrete assembly process is as follows: firstly, placing a bottom cover on a mounting table; secondly, mounting the universal head main body on the bottom cover; thirdly, placing a waterproof ring and a silica gel ring; fourthly, covering the buckling surface of the surface cover into the bottom cover; fifthly, mounting a waterproof ring on the universal head main body; and sixthly, inserting the tail part of the universal head main body into the base. No screw, the assembly is swift.

Finally, it should be noted that: the directional descriptions, such as upper, lower, left, right, are all descriptions made in the view of fig. 1, and the directional words do not limit the technical solutions. The above embodiments are merely illustrative of the technical solutions of the present invention, and not limitative thereof; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a waterproof universal joint of no screw which characterized in that: the universal joint comprises a base (1), a universal joint body (2), a face cover (3) and a bottom cover (4), wherein a through hole (21) is formed in the middle of the universal joint body (2), the universal joint body (2) sequentially comprises a buckling part (22), a circumferential protruding part (23), a connecting shaft part (24) and a ball head part (25), the buckling part (22) comprises a plurality of upper barb parts (221) which extend upwards and are arranged at intervals, a hollow mounting column (11) is integrally formed in the middle of the base (1), the buckling part (22) is clamped with the hollow mounting column (11), and the circumferential protruding part (23) is abutted to the lower surface of the base (1);

the novel golf club head is characterized in that a spherical groove (41) matched with the head portion (25) is formed in the middle of the bottom cover (4), an anti-slip hole (31) is formed in the middle of the face cover (3), the diameter of the anti-slip hole (31) is smaller than that of the head portion (25), a plurality of lower barb portions (32) are formed in the downward integrated mode on the lower portion of the face cover (3), a plurality of buckling holes (42) are formed in the bottom cover (4), the buckling holes (42) are distributed around the spherical groove (41), and the lower barb portions (32) are clamped in the buckling holes (42).

2. The screwless waterproof universal joint according to claim 1, wherein an anti-rotation protrusion (222) is integrally formed on an outer wall of one of the upper barb portion (221), an anti-rotation groove (111) is formed in a side wall of the hollow mounting column (11), and the anti-rotation protrusion (222) is clamped in the anti-rotation groove (111).

3. The screwless waterproof universal joint according to claim 1, wherein a circumferential clamping groove (223) is integrally formed at the lower end of the clamping portion (22), a waterproof ring (5) is clamped in the circumferential clamping groove (223), a silica gel ring (6) is arranged between the ball head portion (25) and the face cover (3), the silica gel ring (6) comprises an arc surface portion (61) with the upper portion attached to the ball head portion (25) and a convex ring portion (62) with the lower portion, the outer diameter of the convex ring portion (62) is larger than the maximum diameter of the spherical groove (41), and the waterproof ring (5) is also arranged between the face cover (3) and the bottom cover (4).

4. The screwless waterproof universal joint according to claim 1, wherein the outer wall of the hollow mounting post (11) is integrally formed with a reinforcing rib (12).

5. The screwless waterproof universal joint according to claim 1, wherein a limit stopper (43) is provided on the lower surface of the bottom cover (4) to match the lower barb portion (32), and the limit stopper (43) extends downward from the edge of the engaging hole (42).

6. The screw-less waterproof universal joint according to claim 1, wherein a plurality of projection portions (251) are integrally formed on the lower outer surface of the ball portion (25).

7. The screwless waterproof universal joint according to claim 3, wherein the base (1), the universal joint body (2), the face cover (3) and the bottom cover (4) are made of plastic, and the waterproof ring (5) is made of rubber.