CN211343667U

CN211343667U - Compound check nut

Info

Publication number: CN211343667U
Application number: CN201922296742.4U
Authority: CN
Inventors: 姚华健
Original assignee: Guangzhou Baostep Auto Parts Industrial Ltd
Current assignee: Guangzhou Baostep Auto Parts Industrial Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-08-25
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a compound lock nut, which comprises a first nut, a second nut arranged below the first nut and a lock washer arranged below the second nut, wherein a first inner clamping groove is arranged on the inner ring of the first nut, a first limit retainer ring clamped in the first inner clamping groove is arranged on one side of the second nut facing the first nut, a second inner clamping groove is arranged on the inner ring of the lock washer, a second limit retainer ring clamped in the second inner clamping groove is arranged on one side of the second nut facing the lock washer, and the bottom surface of the lock washer is provided with wavy insections; the compound anti-loosening nut is low in manufacturing cost, simple in manufacturing process and good in anti-loosening effect.

Description

Compound check nut

Technical Field

The utility model relates to a double entry lock nut.

Background

The traditional non-anti-loose movable cap is vibrated for a long time in the using process of the automobile hub bolt, so that looseness is easily generated, the potential safety hazard that a hub nut falls off occurs, and safety accidents are caused. In the last century, after a 30-degree wedge-faced locknut is arranged at the top end of a traditional 60-degree tooth point, more and more locknuts such as self-locking caps, nylon locknuts, locknuts with iron sheets and the like are available in the market, but the locknuts have the defects of complicated processes or service life and the like in the manufacturing cost or the use process.

SUMMERY OF THE UTILITY MODEL

To the deficiency among the prior art, the utility model aims at providing a compound lock nut that preparation cost is low, preparation process is simple, and the locking effect of taking off is better.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a compound lock nut, including first nut, and set up in the second nut of first nut below, and set up in the lock washer of second nut below, it has first interior draw-in groove to open in the inner circle of first nut, the second nut is equipped with the first spacing rand of card income in first interior draw-in groove towards one side of first nut, the inner circle of lock washer is equipped with the interior draw-in groove of second, the second nut is equipped with the spacing rand of second card income in the interior draw-in groove of second towards one side of lock washer, the bottom surface of lock washer is equipped with wave insection.

Preferably, the diameter of the outer ring of the anti-loosening washer is larger than that of the outer ring of the second nut, so that the stress area between the nut and the contact surface can be effectively increased, the friction effect is increased, and the anti-skidding and loosening effects are achieved.

Preferably, the contact surface between the lock washer and the second nut is inclined, and the inclined surface is inclined inwards, so that the contact area is further increased.

Furthermore, pier pressing riveting is adopted between a first inner clamping groove of the first nut and a first limiting clamping ring of the second nut, the first limiting clamping ring is vertically arranged in an unassembled state, and the nut pressing machine is used for bending after assembly to achieve the purpose of riveting.

Furthermore, pier pressing riveting is adopted between the first inner clamping groove of the anti-loosening gasket and the second limiting clamping ring of the second nut, the second limiting clamping ring is vertically arranged in an unassembled state, and the second limiting clamping ring is bent through a cap pressing machine after being assembled, so that the purpose of riveting is achieved.

The utility model has the advantages that:

in the draw-in groove in going into to first interior draw-in groove and second through first spacing rand and the spacing rand card of second, make three part group become one wholly, realize the effect of locking taking off, in addition, set up wave insection in the bottom surface of lock washer, enable the nut and at rotatory tightening in-process, produce the impression and also can be to the nut locking effect to the packing ring contact surface, and because the packing ring adopts the interlock of wave insection, more can cushion the cushioning effect of tire to the bolt in long-term use for the flat pad.

Drawings

FIG. 1 is a schematic view of the double check nut of the present invention in a disassembled state;

fig. 2 is a schematic view of the assembly state of the double lock nut of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Example (b):

referring to fig. 1-2, a compound lock nut includes a first nut 1, a second nut 2 disposed below the first nut 1, and a lock washer 3 disposed below the second nut 2, wherein a first inner slot 11 is formed in an inner ring of the first nut 1, a first limiting retainer ring 21 clamped in the first inner slot 11 is disposed on one side of the second nut 2 facing the first nut 1, a second inner slot 31 is disposed on an inner ring of the lock washer 3, a second limiting retainer ring 22 clamped in the second inner slot 31 is disposed on one side of the second nut 2 facing the lock washer 3, and a wave-shaped tooth pattern 32 is disposed on a bottom surface of the lock washer 3.

The outer lane diameter of lock washer 3 is greater than the outer lane diameter of second nut 2, can effectively increase the lifting surface area of nut and contact surface, and increase friction effect plays anti-skidding effect of relaxing, lock washer 3 sets up for the slope with the contact surface of second nut 2, and the inclined plane further improves area of contact for the slope setting.

Adopt mound pressure riveting between the first interior draw-in groove 11 of first nut 1 and the first spacing rand 21 of second nut 2, first spacing rand 21 unassembled state is vertical setting, then bends through pressing the cap machine after the equipment, reaches the purpose of riveting, adopt mound pressure riveting between the first interior draw-in groove 11 of lock washer 3 and the second spacing rand 22 of second nut 2, the spacing rand 22 unassembled state of second is vertical setting, then bends through pressing the cap machine after the equipment, reaches the purpose of riveting.

Description of assembly:

the first limiting retainer ring 21 in a vertical state is inserted into the first nut 1, and then the first nut 1 and the second nut 2 are put into a nut pressing machine to be bent, so that riveting between the first nut 1 and the second nut 2 is realized, and similarly, the second nut 2 and the lock washer 3 are also put into the nut pressing machine to be bent to realize riveting connection.

The utility model has the advantages that:

the first limiting clamping ring and the second limiting clamping ring are clamped into the first inner clamping groove and the second inner clamping groove, so that the three components are integrated, the loosening and releasing effect is realized, in addition, the wavy insections are arranged on the bottom surface of the anti-loosening gasket, the nut can generate impressions on the contact surface of the gasket and can play a role in preventing the nut from loosening in the rotating and tightening process, and the gasket is engaged by the wavy insections, so that the damping effect of the tire on the bolt in long-term use can be better buffered compared with a flat cushion.

The above embodiments of the present invention are not right the utility model discloses the limited protection scope, the utility model discloses an embodiment is not limited to this, all kinds of basis according to the above-mentioned of the utility model discloses an under the above-mentioned basic technical thought prerequisite of the utility model, right according to ordinary technical knowledge and the conventional means in this field the modification, replacement or the change of other multiple forms that above-mentioned structure made all should fall within the protection scope of the utility model.

Claims

1. A compound lock nut, characterized in that: including first nut, and set up in the second nut of first nut below, and set up in the lock washer of second nut below, it has first interior draw-in groove to open in the inner circle of first nut, the second nut is equipped with the first spacing rand of card income in first interior draw-in groove towards one side of first nut, the inner circle of lock washer is equipped with second interior draw-in groove, the second nut is equipped with the spacing rand of second card income in second interior draw-in groove towards one side of lock washer, the bottom surface of lock washer is equipped with the wave insection.

2. A compound lock nut as defined in claim 1, wherein: the diameter of the outer ring of the anti-loosening washer is larger than that of the outer ring of the second nut.

3. A compound lock nut as defined in claim 2, wherein: the contact surface of the anti-loose washer and the second nut is obliquely arranged.

4. A compound lock nut according to claim 2 or 3, characterized in that: and a first inner clamping groove of the first nut and a first limiting clamping ring of the second nut are riveted by pier pressing.

5. The compound lock nut as claimed in claim 4, wherein: and a first inner clamping groove of the anti-loosening gasket and a second limiting clamping ring of the second nut are riveted by pier pressing.