CN218235790U

CN218235790U - Locking gasket for fastener

Info

Publication number: CN218235790U
Application number: CN202222389163.6U
Authority: CN
Inventors: 马大业; 钟志武
Original assignee: Wenzhou Jiantai Auto Parts Co ltd
Current assignee: Wenzhou Jiantai Auto Parts Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2023-01-06
Anticipated expiration: 2032-09-06

Abstract

The utility model discloses a locking gasket for fastener relates to gasket technical field. The utility model comprises a bottom end ring and a top end ring; the bottom end ring is provided with an inserting clamping seat close to the top end ring in an annular array; the annular array between the two surfaces of the top end ring is provided with notches matched with the inserting clamping seat; a limiting guide cylinder communicated with the notch is arranged on the surface of the top ring in an annular array; elastic connecting strips are arranged between opposite surfaces of the bottom end ring and the top end ring in an annular array manner; two clamping plates are symmetrically arranged on the peripheral side surface of the bottom end ring. The utility model discloses a nut fastening promotes the bottom end links along the extrusion of top ring direction, and the ratchet that is located grafting cassette tip runs through spacing guide pin bushing and hugs closely with the laminating face to restriction gasket is whole along the laminating face antiport, and under the recovery effect of elastic connection strip, makes bottom end links and nut counterbalance, and card and slab upset and laminate each other with the nut, has slowed down the nut and has become flexible speed under the vibration action, has improved the fastening performance of fastener.

Description

Locking gasket for fastener

Technical Field

The utility model belongs to the technical field of the gasket, especially, relate to a locking gasket for fastener.

Background

Generally, a nut used for automobile fastening can be loosened automatically due to vibration and the like, and a locking gasket is required to be additionally arranged for fastening connection between parts so as to relieve the loosening rate of a fastening piece between the parts.

Chinese patent CN201407269Y (application number: 200920089564.1) discloses a "locking gasket", which includes a gasket body with an inner hole, wherein protruding fins are correspondingly disposed on two planes of the gasket body, when in use, pits corresponding to the protruding fins are correspondingly formed on the press-fit surfaces of the connecting member and the nut adjacent to the two planes of the gasket body, the protruding fins on the two planes of the gasket body are pressed into the pits on the press-fit surfaces attached to the protruding fins along with the gradual tightening of the nut, after the whole connecting assembly is pressed, the gasket body becomes a "spring jack gasket" therein, and when the nut is to be dismounted, it is basically impossible without using a special tool, but since the corresponding pits need to be formed in advance on the press-fit surfaces of the connecting member and the nut adjacent to the gasket body, the manufacturing cost is high, and since the protruding fins disposed on the surfaces of the gasket body are symmetrically disposed with each other, when the protruding fins on the surface of the gasket body are engaged with the pits of the connecting member and the nut, the nut continues to rotate, the protruding fins cannot be pressed, and the fastening performance of the nut cannot be relatively poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a locking gasket for fastener, fasten and promote the bottom ring through the nut and extrude along top ring direction, the ratchet that is located grafting cassette tip runs through spacing guide pin bushing and hugs closely and restrict the whole binding face rotation of following of gasket with the laminating face, and under elastic connection strip's recovery effect, make bottom ring and bottom ring offset, and card and slab upset and laminate each other with the nut, the nut speed that becomes flexible under the vibration action has been slowed down, the fastening performance of fastener has been improved, the fastener that current automobile parts used has been solved, receiving the not hard up problem of proper motion that reasons such as vibrations lead to.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a locking gasket for a fastener, which comprises a bottom end ring and a top end ring; the bottom end ring is provided with inserting clamping seats in an annular array on one surface close to the top end ring; notches matched with the inserting clamping seats are formed in an annular array between the two surfaces of the top end ring; a limiting guide cylinder communicated with the notch is arranged on the surface of the top end ring close to the bottom end ring in an annular array; elastic connecting strips are arranged between the opposite surfaces of the bottom end ring and the top end ring and are positioned on the inner side of the inserting clamping seat in an annular array manner; and two clamping plates are symmetrically arranged on the peripheral side surface of the bottom ring.

As an optimized technical scheme of the utility model, a bottom ring terminal surface array is kept away from to the grafting cassette is equipped with the ratchet.

As a preferred technical scheme of the utility model, the cross section of elastic connection strip is "S" shape structure.

As a preferred technical scheme of the utility model, the block slab is equipped with spacing end lip far away from bottom end ring tip.

The utility model discloses following beneficial effect has:

the utility model discloses a nut fastening promotes the bottom end ring and follows the extrusion of top ring direction, the ratchet that is located grafting cassette tip runs through spacing guide pin bushing and hugs closely with the laminating face to the restriction gasket is whole along binding face antiport, and under elastic connection strip's recovery effect, make bottom end ring and nut offset, and card and slab upset and laminate each other with the nut, slowed down the nut and not hard up speed under the vibration action, improved the fastening performance of fastener, satisfied the needs of in-service use.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a cross-sectional view of a locking washer for a fastener.

In the drawings, the components represented by the respective reference numerals are listed below:

1-bottom end ring, 2-top end ring, 3-plug-in clamping seat, 4-notch, 5-limiting guide cylinder, 6-elastic connecting strip, 7-clamping plate, 8-ratchet and 9-limiting end lip.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The specific embodiment is as follows:

referring to fig. 1-2, the present invention relates to a locking washer for a fastener, which comprises a bottom ring 1 and a top ring 2; the bottom end ring 1 is provided with inserting clamping seats 3 close to the annular array of one surface of the top end ring 2; the annular array between two surfaces of the top end ring 2 is provided with notches 4 matched with the inserting clamping seats 3, the nut is screwed in and fastened, the bottom end ring 1 drives the elastic connecting strips 6 to deform, and the inserting clamping seats 3 positioned on the surface of the bottom end ring 1 move along the limiting guide cylinders 5 and penetrate through the notches 4; one end face of the inserting clamping seat 3, which is far away from the bottom end ring 1, is provided with ratchets 8 in an array mode, and the ratchets 8 are meshed with the pressing surface under the pushing action of the bottom end ring 1, so that the gasket is limited to integrally rotate along the opposite direction of the binding surface; a limiting guide cylinder 5 communicated with the notch 4 is arranged on the surface of the top end ring 2 close to the bottom end ring 1 in an annular array; elastic connecting strips 6 are arranged between the opposite surfaces of the bottom end ring 1 and the top end ring 2 and positioned on the inner side of the inserting clamping seat 3 in an annular array manner; the cross section of the elastic connecting strip 6 is of an S-shaped structure, so that the recovery action of the elastic connecting strip 6 after compression is ensured, and the bottom ring 1 is always abutted against the nut; two clamping sheets 7 are symmetrically arranged on the peripheral side surface of the bottom end ring 1; the end part of the clamping plate 7 far away from the bottom end ring 1 is provided with a limiting end lip 9, the clamping plate 7 is turned and attached to the nut, and the limiting end lip 9 at the end part of the clamping plate 7 is meshed with the end face of the nut, so that the whole gasket is in limiting connection with the nut.

One specific application of this embodiment is: the locking gasket is integrally sleeved on a fastener, nuts are fastened, the top end ring 2 is attached to a press-fit surface, the nuts continue to be screwed and fastened, the bottom end ring 1 drives the elastic connecting strips 6 to deform, the inserting clamping seat 3 located on the surface of the bottom end ring 1 moves along the limiting guide cylinder 5 and penetrates through the notch 4, the ratchet 8 located on the end face of the inserting clamping seat 3 is engaged with the press-fit surface, the gasket is limited to rotate along the attaching surface in the opposite direction, the bottom end ring 1 is abutted to the nuts under the restoring action of the elastic connecting strips 6, vibration generated during automobile driving is buffered, the nuts are prevented from being unscrewed under the vibration action, meanwhile, the clamping plates 7 are turned outwards through tools such as pliers, the clamping plates 7 are turned over and attached to the peripheral side faces of the nuts, the limiting end lips 9 located at the ends of the clamping plates 7 are turned over and engaged with the end faces of the nuts, the gasket is integrally connected with the nuts in a limiting mode, the loosening rate of the nuts under the vibration action is further slowed down, the fastening performance of the fastener is improved, and the requirements of actual use are met.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A locking washer for a fastener characterized by:

comprises a bottom ring (1) and a top ring (2); the bottom end ring (1) is provided with inserting clamping seats (3) in an annular array on one surface close to the top end ring (2); notches (4) matched with the plug-in clamping seats (3) are arranged between the two surfaces of the top end ring (2) in an annular array manner; a limiting guide cylinder (5) communicated with the notch (4) is arranged on one surface of the top end ring (2) close to the bottom end ring (1) in an annular array;

elastic connecting strips (6) are arranged between the opposite surfaces of the bottom ring (1) and the top ring (2) and are positioned on the inner side of the inserting clamping seat (3) in an annular array manner;

and two clamping plates (7) are symmetrically arranged on the peripheral side surface of the bottom end ring (1).

2. A locking washer for a fastener according to claim 1, characterized in that an end face of the plug-in cartridge (3) remote from the bottom ring (1) is provided with ratchet teeth (8).

3. A locking washer for fasteners according to claim 1, characterized in that the cross-section of the elastic connecting strip (6) is of "S" shaped configuration.

4. A locking washer for fasteners according to claim 1, characterized in that the end of the snap plate (7) remote from the bottom ring (1) is provided with a limiting end lip (9).