CN210240269U

CN210240269U - Anti-loosening fastener

Info

Publication number: CN210240269U
Application number: CN201921116514.8U
Authority: CN
Inventors: Libo Tu; 涂力波
Original assignee: Zhejiang Ruizhao Science And Technology Co ltd
Current assignee: Zhejiang Ruizhao Science And Technology Co ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-04-03
Anticipated expiration: 2029-07-16

Abstract

The utility model belongs to the technical field of the fastener technique and specifically relates to a locking fastener, including fixing bolt, threaded connection has fixation nut on the fixing bolt, the below threaded connection who is located fixation nut on the fixing bolt has locknut, the mechanism of packing has been placed between fixation nut and the locknut, fixing bolt runs through the mechanism of packing, locknut's lower fixed surface is connected with a plurality of connecting rod, the equal fixedly connected with ring board of one end that locknut was kept away from to every connecting rod, the last one end that is close to the ring board of fixing bolt is seted up flutedly, be equipped with the screw thread in the recess, there is the supporting bolt through threaded connection in the recess, the supporting bolt runs through the ring board, the bottom and the ring board lower surface of supporting. The utility model discloses simple structure is worth promoting.

Description

Anti-loosening fastener

Technical Field

The utility model relates to a fastener technical field especially relates to a locking fastener.

Background

Cylindrical threaded fasteners fitted with nuts. The bolt is a cylindrical fastener with threads, the nut is a part which is screwed together by the screw rod to play a fastening role, and all production and manufacturing machines have to use one element which is divided into carbon steel, stainless steel, nonferrous metal and the like according to different materials.

In the prior art, a bolt is usually in threaded connection with a machined part, and then is in threaded connection with a nut, the machined part is located between a bolt head and the nut, and the bolt and the nut are in threaded connection, so that the machined part is easy to loosen due to long-time use or other factors, and adverse effects are brought.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of easy loosening in the prior art and providing a loosening-proof fastener.

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

the utility model provides a locking fastener, includes fixing bolt, threaded connection has fixation nut on the fixing bolt, the last position of fixing bolt be in fixation nut's below threaded connection has locknut, fixation nut with the packing mechanism has been placed between the locknut, fixing bolt runs through the packing mechanism, locknut's lower fixed surface is connected with a plurality of connecting rod, every the connecting rod is kept away from the equal fixedly connected with ring board of one end of locknut, the last being close to of fixing bolt the one end of ring board is seted up flutedly, be equipped with the screw thread in the recess, pass through in the recess threaded connection has the supporting bolt, the supporting bolt runs through the ring board, the bottom of supporting bolt with the ring board lower surface contacts.

Preferably, the filling mechanism comprises a first extrusion piece, the first extrusion piece is placed on the locknut, a gasket is placed on one side, away from the locknut, of the first extrusion piece, a second extrusion piece is placed on the upper surface of the gasket, and one side, away from the gasket, of the second extrusion piece is in contact with the fixing nut.

Preferably, the first extrusion sheet and the second extrusion sheet are both rubber sheets.

Preferably, the gasket is a metal sheet.

Preferably, the connecting rods are distributed at equal intervals.

Preferably, a third pressing sheet is arranged at the joint of the bottom end of the supporting bolt and the lower surface of the circular ring plate.

The utility model provides a pair of locking fastener, beneficial effect lies in:

1. the fixing nut is supported through the anti-loosening nut, so that the fixing nut is not loosened, and the fastening effect is good.

2. The ring plate is supported through the bolt, and the lock nut is supported by the ring plate, so that the fixing nut is not loosened.

Drawings

Fig. 1 is a schematic structural view of a locking fastener according to the present invention;

fig. 2 is a schematic view of a disassembled structure of the anti-loose fastener provided by the utility model;

fig. 3 is a schematic view of a cross-sectional structure of a locking fastener according to the present invention.

In the figure: fixing bolt 1, fixing nut 2, locknut 3, first extrusion piece 4, gasket 5, second extrusion piece 6, connecting rod 7, ring plate 8, third extrusion piece 9, recess 10, screw thread 11, support bolt 12.

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.

Referring to fig. 1-3, a locking fastener comprises a fixing bolt 1, a fixing nut 2 is in threaded connection with the fixing bolt 1, a locking nut 3 is in threaded connection with the fixing bolt 1 below the fixing nut 2, the locking nut 3 is used for preventing the fixing nut 2 from loosening, a filling mechanism is arranged between the fixing nut 2 and the locking nut 3 and used for enabling the locking nut 3 to be in close contact with the fixing nut 2, the locking effect is better, the fixing bolt 1 penetrates through the filling mechanism, the filling mechanism comprises a first extrusion sheet 4, the first extrusion sheet 4 is used for deforming after extrusion to enable the locking nut 3 to be in close contact with the fixing nut 2 and prevent the fixing nut 2 from loosening, the first extrusion sheet 4 is a rubber sheet, the first extrusion sheet 4 is arranged on the locking nut 3, a gasket 5 is arranged on one side, far away from the locking nut 3, of the first extrusion sheet 4, gasket 5 is the sheetmetal, and second extrusion piece 6 has been placed to the upper surface of gasket 5, and second extrusion piece 6 is the sheet rubber, and one side that gasket 5 was kept away from to second extrusion piece 6 contacts with fixation nut 2.

The lower surface of the locknut 3 is fixedly connected with a plurality of connecting rods 7, the connecting rods 7 are used for connecting ring plates 8, the connecting rods 7 are distributed at equal intervals, one end of each connecting rod 7, which is far away from the locknut 3, is fixedly connected with a ring plate 8, the ring plates 8 are used for supporting the connecting rods 7, one end of each fixing bolt 1, which is close to the ring plate 8, is provided with a groove 10, a thread 11 is arranged in each groove 10, the thread 11 is used for connecting a supporting bolt 12, the groove 10 is connected with a supporting bolt 12 through the thread 11, the supporting bolt 12 is used for supporting the ring plates 8, thereby support locknut 3 for locknut 3 does not take place to become flexible, and support bolt 12 runs through ring board 8, and support bolt 12's bottom contacts with 8 lower surfaces of ring board, and support bolt 12's bottom is equipped with third stripper plate 9 with the junction of 8 lower surfaces of ring board, and the effect of third stripper plate 9 makes support bolt 12 inseparabler with 8 contacts of ring board.

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 anti-loose fastener comprises a fixing bolt (1) and is characterized in that a fixing nut (2) is connected onto the fixing bolt (1) in a threaded manner, an anti-loose nut (3) is connected onto the fixing bolt (1) in a threaded manner below the fixing nut (2), a filling mechanism is placed between the fixing nut (2) and the anti-loose nut (3), the fixing bolt (1) penetrates through the filling mechanism, a plurality of connecting rods (7) are fixedly connected onto the lower surface of the anti-loose nut (3), a circular ring plate (8) is fixedly connected onto one end, far away from the anti-loose nut (3), of each connecting rod (7), a groove (10) is formed in one end, close to the circular ring plate (8), of the fixing bolt (1), a thread (11) is arranged in each groove (10), and a supporting bolt (12) is connected into each groove (10) through the thread (11), the supporting bolts (12) penetrate through the circular ring plate (8), and the bottom ends of the supporting bolts (12) are in contact with the lower surface of the circular ring plate (8).

2. A loose-proof fastener according to claim 1, characterized in that the filling mechanism comprises a first pressing sheet (4), the first pressing sheet (4) is placed on the loose-proof nut (3), a gasket (5) is placed on one side of the first pressing sheet (4) far away from the loose-proof nut (3), a second pressing sheet (6) is placed on the upper surface of the gasket (5), and one side of the second pressing sheet (6) far away from the gasket (5) is in contact with the fixing nut (2).

3. A loose-proof fastener as claimed in claim 2, characterized in that the first (4) and the second (6) extruded sheets are rubber sheets.

4. A loose-proof fastener as claimed in claim 2, characterized in that said washer (5) is a metal sheet.

5. Anti-loose fastener according to claim 1, characterized in that said connecting rods (7) are equally spaced.

6. An anti-loose fastener according to claim 1, characterized in that the junction of the bottom end of the supporting bolt (12) and the lower surface of the annular plate (8) is provided with a third pressing sheet (9).