CN211059177U

CN211059177U - Anti-drop type fastener

Info

Publication number: CN211059177U
Application number: CN201922214944.XU
Authority: CN
Inventors: 涂力波
Original assignee: Zhejiang Ruizhao Science And Technology Co ltd
Current assignee: Zhejiang Ruizhao Science And Technology Co ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-07-21
Anticipated expiration: 2029-12-10

Abstract

The utility model relates to a fastener technical field especially relates to an anti-drop type fastener, including bolt and nut, nut thread engagement connects on the bolt, is provided with the gasket between bolt and the nut, and the lower surface of gasket and the upper surface of nut are provided with anti-skidding arch, are provided with fastening device between bolt and the gasket, and fastening device includes that fixed welding is at the fixed block of bolt head, and the fixed welding in bottom of fixed block has the threaded rod, and the outside threaded connection of threaded rod has the tighrening ring, and the ring channel has been seted up to the top surface of gasket. Through set up the non-slip raised on gasket and nut, and under the effect of fastener self extrusion force, can be so that gasket and nut firmly fix on machine part, in addition, link to each other through fastening device between bolt and the gasket for the bolt keeps static for the gasket, because the gasket no longer removes under the effect of non-slip raised, thereby makes the bolt can not appear not hard up the obscission, and the practicality is strong, is fit for promoting.

Description

Anti-drop type fastener

Technical Field

The utility model relates to a fastener technical field especially relates to an anti-drop type fastener.

Background

The fastener is a mechanical part which is used for fastening connection and has extremely wide application. It features various varieties and specifications, different functions and usages, and very high standardization, serialization and universalization degrees.

However, when the existing fastener is used for fastening connection, if the fastener is used on machinery vibrating for a long time, the phenomenon that a bolt loosens and falls off can occur, and in order to solve the problem, the fastener capable of preventing loosening and falling off is designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the bolt is easy to loosen and fall off in the long-term vibration machine in the prior art, and providing an anti-falling fastener.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an anti-drop type fastener, includes bolt and nut, nut thread engagement connects on the bolt, be provided with the gasket between bolt and the nut, the lower surface of gasket and the upper surface of nut are provided with anti-skidding arch, be provided with fastening device between bolt and the gasket, fastening device includes the fixed block of fixed welding at the bolt head, the fixed welding in bottom of fixed block has the threaded rod, the outside threaded connection of threaded rod has the tighrening ring, the ring channel has been seted up to the top surface of gasket, the bottommost of threaded rod is located the inside of gasket, and the threaded rod does not contact with the lateral wall of ring channel, the bottom of tighrening ring can offset with the top surface of gasket.

Preferably, the top end of the bolt is fixedly provided with a connecting piece, the connecting piece is connected with a rope, and one end, far away from the bolt, of the rope is fixedly connected with a sucker.

Preferably, a circle of rubber pad is fixedly adhered to the bottom end of the fastening ring.

Preferably, the fastening ring is fixedly welded with a flywheel at the outside, and the flywheel is fixedly welded with a handle at the outside.

Preferably, a reinforcing rib is arranged between the threaded rod and the fixing block.

The utility model provides an anti-drop type fastener, beneficial effect lies in: this anti-drop type fastener is through setting up the non-slip raised on gasket and nut, and under the effect of fastener self extrusion force, can be so that the gasket and nut firmly fix on machine part, in addition, link to each other through fastening device between bolt and the gasket for the bolt keeps static for the gasket, because the gasket no longer removes under the effect of non-slip raised, thereby makes the bolt can not appear not hard up obscission, and the practicality is strong, is fit for promoting.

Drawings

Fig. 1 is a schematic front view of an anti-drop fastener according to the present invention;

fig. 2 is a schematic top view of the anti-falling fastener of the present invention;

fig. 3 is an enlarged view of the structure of part a of fig. 1.

In the figure: 1 bolt, 2 nuts, 3 gaskets, 4 anti-skid protrusions, 5 connecting pieces, 6 ropes, 7 suckers, 8 fixing blocks, 9 threaded rods, 10 fastening rings, 11 annular grooves, 12 rubber pads, 13 flywheels, 14 handles and 15 reinforcing ribs.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1

Referring to fig. 1-3, an anti-drop type fastener comprises a bolt 1 and a nut 2, wherein the nut 2 is connected to the bolt 1 in a threaded engagement manner, a gasket 3 is arranged between the bolt 1 and the nut 2, anti-skid protrusions 4 are arranged on the lower surface of the gasket 3 and the upper surface of the nut 2, under the action of the anti-skid protrusions 4, friction force between the gasket 3 and the nut 2 and a mechanical part can be increased, stability of the gasket 3 and the nut 2 is improved, and the gasket 3 and the nut 2 are firmly fixed on the mechanical part.

In the utility model, a fastening mechanism is arranged between the bolt 1 and the gasket 3, the fastening mechanism comprises a fixed block 8 fixedly welded on the head of the bolt 1, a threaded rod 9 is fixedly welded at the bottom of the fixed block 8, a reinforcing rib 15 is arranged between the threaded rod 9 and the fixed block 8, the stability of the threaded rod 9 can be improved by arranging the reinforcing rib 15, the external thread of the threaded rod 9 is connected with a fastening ring 10, the top surface of the gasket 3 is provided with a ring groove 11, the bottom end of the threaded rod 9 is positioned inside the gasket 3, and the threaded rod 9 is not contacted with the side wall of the annular groove 11, the bottom end of the fastening ring 10 can be pressed against the top surface of the gasket 3, by rotating the tightening ring 10 so that the bottom surface of the tightening ring 10 abuts against the gasket 3, the position of the tightening ring 10 with respect to the gasket 3 is thus immobilized, and the fastening ring 10 is connected with the bolt 1 through the fixing block 8, so that the bolt 1 cannot be loosened and fall off.

Example 2

Referring to fig. 1, as another preferred embodiment of the present invention, the difference with embodiment 1 lies in that the fixed connecting piece 5 that is provided with in top of bolt 1 is connected with rope 6 on the connecting piece 5, and bolt 1's one end fixedly connected with sucking disc 7 is kept away from to rope 6, through setting up sucking disc 7, can make things convenient for us to dismantle bolt 1, when avoiding later stage to dismantle, randomly puts in disorder, seeks the difficulty.

Example 3

Referring to fig. 3, as another preferred embodiment of the present invention, the difference from embodiment 1 is that a circle of rubber gasket 12 is adhered to the bottom end of the fastening ring 10, the use of the rubber gasket 12 can increase the friction force between the fastening ring 10 and the gasket 3, the flywheel 13 is fixedly welded outside the fastening ring 10, the handle 14 is fixedly welded outside the flywheel 13, and the arrangement of the flywheel 13 and the handle 14 can facilitate the rotation of the fastening member 10.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an anti-drop type fastener, includes bolt (1) and nut (2), its characterized in that, nut (2) thread engagement connects on bolt (1), be provided with gasket (3) between bolt (1) and nut (2), the lower surface of gasket (3) and the upper surface of nut (2) are provided with anti-skidding arch (4), be provided with fastening device between bolt (1) and gasket (3), fastening device includes fixed block (8) of fixed welding at bolt (1) head, the fixed welding in bottom of fixed block (8) has threaded rod (9), the outside threaded connection of threaded rod (9) has tighrening ring (10), ring channel (11) have been seted up to the top surface of gasket (3), the bottommost of threaded rod (9) is located the inside of gasket (3), and threaded rod (9) do not contact with the lateral wall of ring channel (11), the bottom end of the fastening ring (10) can be abutted against the top surface of the gasket (3).

2. The anti-falling fastener is characterized in that a connecting piece (5) is fixedly arranged at the top end of the bolt (1), a rope (6) is connected onto the connecting piece (5), and a sucker (7) is fixedly connected to one end, far away from the bolt (1), of the rope (6).

3. A drop-off preventing fastener, as claimed in claim 1, wherein a ring of rubber pad (12) is fixedly adhered to the bottom end of the fastening ring (10).

4. A drop-off preventing fastener, as claimed in claim 1, wherein a flywheel (13) is fixedly welded to the outside of said fastening ring (10), and a handle (14) is fixedly welded to the outside of said flywheel (13).

5. A drop-preventing fastener, according to claim 1, characterized in that a reinforcing rib (15) is provided between said threaded rod (9) and said fixed block (8).