CN218408111U

CN218408111U - Fastener capable of preventing loosening

Info

Publication number: CN218408111U
Application number: CN202222729948.3U
Authority: CN
Inventors: 刘玉宝; 王媛; 刘萌
Original assignee: Obeio Kunshan Automobile Fastener Co ltd
Current assignee: Obeio Kunshan Automobile Fastener Co ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-01-31
Anticipated expiration: 2032-10-14

Abstract

The utility model provides a can prevent not hard up fastener, include: the limiting part is arranged on the outer surface of the rod body part in a sliding mode, a second occlusion part is fixedly arranged on the upper surface of the limiting part, a second occlusion groove is formed in the lower surface of the limiting part, a rod head part is fixedly arranged at the top end of the rod body part, and a first occlusion groove matched with the second occlusion part is formed in the lower surface of the rod head part; the first gasket is arranged on the outer surface of the rod body in a sliding mode, and a first meshing part matched with the second meshing groove is fixedly arranged on the upper surface of the first gasket; and the protective cover is detachably connected with the limiting part. The utility model provides a not hard up problem can appear after the body of rod portion uses for a long time.

Description

Fastener capable of preventing loosening

Technical Field

The utility model belongs to the technical field of machine part, concretely relates to fastener that can prevent not hard up.

Background

The fastener is a mechanical part which is used for fastening connection and has extremely wide application. The fastener is widely used in the industries including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, molds, hydraulic pressure and the like, and various fasteners can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical industry, instruments, supplies and the like, and are the most widely applied mechanical basic parts. It features various varieties and specifications, different functions and usages, and very high standardization, serialization and universalization degrees.

The existing fastener is easy to loosen in the long-term use process, so that the fastener falls off, the normal use of mechanical equipment is seriously influenced, the use requirements of people cannot be well met, and technical innovation is performed on the basis of the existing fastener according to the conditions.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fastener that can prevent to become flexible to solve body of rod portion and appear not hard up problem easily after using for a long time.

The utility model provides a following technical scheme: a fastener that resists loosening, comprising:

the limiting part is arranged on the outer surface of the rod body part in a sliding mode, a second occlusion part is fixedly arranged on the upper surface of the limiting part, a second occlusion groove is formed in the lower surface of the limiting part, a rod head part is fixedly arranged at the top end of the rod body part, and a first occlusion groove matched with the second occlusion part is formed in the lower surface of the rod head part;

the first gasket is arranged on the outer surface of the rod body in a sliding mode, and a first meshing part matched with the second meshing groove is fixedly arranged on the upper surface of the first gasket;

and the protective cover is detachably connected with the limiting part.

Preferably, the outer surface of the rod body part is provided with a sliding groove, the inner surfaces of the first gasket and the limiting part are respectively and fixedly provided with a first sliding block and a second sliding block, and the first sliding block and the second sliding block are both arranged in the sliding groove in a sliding manner.

Preferably, a second gasket is further slidably arranged on the outer surface of the rod body, a nut is connected to the outer surface of the rod body in a threaded manner, and an engaging piece is arranged on the surface, opposite to the nut, of the second gasket.

Preferably, the engaging piece is a third engaging portion and a third engaging groove, the third engaging portion is rotatably disposed on the top end of the nut, and the third engaging groove is formed in the lower surface of the second gasket.

Preferably, a threaded area is arranged on the outer surface of the limiting part, and the protective cover is in threaded connection with the threaded area.

The beneficial effects of the utility model are that:

the utility model discloses a slide on the surface of body of rod portion and set up restriction portion and first gasket, and be provided with second interlock portion and first interlock groove between the upper surface of restriction portion and the butt portion, be provided with second interlock groove and first interlock portion between the lower surface of restriction portion and the first gasket, can effectually prevent that the rotatory not hard up condition from appearing in body of rod portion after the body of rod portion installation.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the split structure of the middle shaft, the limiting part, the first gasket, the nut and the second gasket of the present invention;

FIG. 3 is a schematic view of the first gasket and the limiting portion of the present invention;

FIG. 4 is a schematic view of the nut and the second gasket of the present invention;

fig. 5 is a schematic structural view of the rod body of the present invention.

Labeled as: 1. a lever body portion; 11. a rod head; 12. a chute; 13. a first engagement groove; 2. a first gasket; 21. a first engaging portion; 22. a first slider; 3. a limiting part; 31. a second engaging portion; 32. a second slider; 33. a second engagement groove; 34. a threaded region; 4. a protective cover; 5. a nut; 51. a third engaging portion; 52. a third slider; 6. a second gasket; 61. a fourth slider; 62. a third engagement groove.

Detailed Description

The utility model is used for solve the fastener and can appear becoming flexible problem after long-term the use easily, please show with combination fig. 1-5:

a fastener that resists loosening, comprising:

the limiting part 3 is arranged on the outer surface of the rod body part 1 in a sliding manner, a second meshing part 31 is fixedly arranged on the upper surface of the limiting part 3, a second meshing groove 33 is formed in the lower surface of the limiting part, the rod head part 11 is fixedly arranged at the top end of the rod body part 1, and a first meshing groove 13 matched with the second meshing part 31 is formed in the lower surface of the rod head part 11;

the first gasket 2 is arranged on the outer surface of the rod body part 1 in a sliding manner, a first occlusion part 21 matched with a second occlusion groove 33 is fixedly arranged on the upper surface of the first gasket 2, when the rod body part 1 is installed, the first gasket 2 and the limiting part 3 are gradually closer to the rod head part 11 in the process of continuously rotating the rod body part 1, when a gap between the top end of the limiting part 3 and the lower surface of the rod head part 11 is smaller, the first gasket 2 and the limiting part 3 slide upwards, a second occlusion part 31 fixedly installed on the limiting part 3 enters the first occlusion groove 13, the first occlusion part 21 fixedly installed on the first gasket 2 enters the second occlusion groove 33, the rod body part 1 is continuously rotated, the first gasket 2 and the limiting part 3 are tightly abutted between the lower surface of the rod head part 11 and an installation position, and further the situation that the rod 1 is rotated and loosened after being installed can be effectively prevented;

protection casing 4, can dismantle with the restriction portion 3 and be connected, be provided with screw thread district 34 on the surface of restriction portion 3, protection casing 4 and screw thread district 34 threaded connection, protection casing 4 and restriction portion 3 fixed connection back, can cover pole head portion 11 completely, block during the rainwater enters into the gap between body of rod portion 1 and restriction portion 3, avoid the junction to get into the rainwater and the not hard up condition of corruption appears, and protection casing 4 and restriction portion 3's connected mode is all comparatively convenient to dismantling and installation protection casing 4.

The outer surface of the rod body part 1 is provided with the sliding groove 12, the inner surfaces of the first gasket 2 and the limiting part 3 are respectively and fixedly provided with the first sliding block 22 and the second sliding block 32, the first sliding block 22 and the second sliding block 32 are arranged in the sliding groove 12 in a sliding mode, the circumferential direction of the first gasket 2 and the limiting part 3 can be limited, the process of calibration is avoided in the process that the second occlusion part 31 enters the first occlusion groove 13 and the first occlusion part 21 enters the second occlusion groove 33, and the operation difficulty is reduced.

The fourth sliding block 61 fixedly mounted on the inner surface of the second gasket 6 is arranged on the outer surface of the rod body portion 1 in a sliding mode, the nut 5 is connected to the outer surface of the rod body portion 1 through threads, the face, opposite to the nut 5, of the second gasket 6 is provided with a meshing piece, the meshing piece is a third meshing portion 51 and a third meshing groove 62, the third meshing portion 51 is rotatably arranged on the top end of the nut 5, the third meshing groove 62 is formed in the lower surface of the second gasket 6, the third sliding block 52 is fixedly mounted on the inner surface of the third meshing portion 51, the third sliding block 52 is arranged on the outer surface of the rod body portion 1 in a sliding mode, the circumferential direction of the third meshing portion 51 is limited, and the third meshing portion 51 can conveniently and rapidly enter the third meshing groove 62.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fastener that resists loosening, comprising:

the limiting part (3) is arranged on the outer surface of the rod body part (1) in a sliding mode, a second meshing part (31) is fixedly arranged on the upper surface of the limiting part (3), a second meshing groove (33) is formed in the lower surface of the limiting part, the rod head part (11) is fixedly arranged at the top end of the rod body part (1), and a first meshing groove (13) matched with the second meshing part (31) is formed in the lower surface of the rod head part (11);

the first gasket (2) is arranged on the outer surface of the rod body part (1) in a sliding mode, and a first meshing part (21) matched with the second meshing groove (33) is fixedly arranged on the upper surface of the first gasket (2);

and the protective cover (4) is detachably connected with the limiting part (3).

2. The anti-loosening fastener according to claim 1, wherein a sliding groove (12) is formed in the outer surface of the rod body portion (1), a first sliding block (22) and a second sliding block (32) are fixedly mounted on the inner surfaces of the first gasket (2) and the limiting portion (3) respectively, and the first sliding block (22) and the second sliding block (32) are arranged in the sliding groove (12) in a sliding manner.

3. The fastener capable of preventing loosening according to claim 1, wherein a second gasket (6) is further slidably disposed on the outer surface of the body portion (1), a nut (5) is threadedly connected to the outer surface of the body portion (1), and a snap-in member is disposed on a surface of the second gasket (6) opposite to the nut (5).

4. A loosening prevention fastener according to claim 3, wherein the engaging members are a third engaging portion (51) and a third engaging groove (62), the third engaging portion (51) is rotatably provided on the top end of the nut (5), and the third engaging groove (62) is opened on the lower surface of the second washer (6).

5. A loosening-prevention fastener according to claim 1, wherein the defining portion (3) is provided with a threaded region (34) on an outer surface thereof, and the shield (4) is threadedly coupled to the threaded region (34).