CN210318126U

CN210318126U - Nylon self-locking nut

Info

Publication number: CN210318126U
Application number: CN201921024843.XU
Authority: CN
Inventors: 陈木火; 陈建荣
Original assignee: Ruian Shengsheng Fasteners Co ltd
Current assignee: Ruian Shengsheng Fasteners Co ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-04-14
Anticipated expiration: 2029-07-03

Abstract

The utility model discloses a nylon self-locking nut, including outer hexagon and nylon gasket, be equipped with screw hole, its characterized in that in the outer hexagon: the up end an organic whole of outer hexagon is connected with the thin wall sleeve pipe, and the nylon gasket packs into thin wall sheathed tube hole, and thin wall sheathed tube last port is equipped with the turn-ups and compresses tightly the nylon gasket at the up end of outer hexagon, and the hole diameter of nylon gasket is not more than the path of screw hole, and the up end circumference of nylon gasket is laid many places recess, corresponds with many places recess, and many places recesses are laid along the circumference to the turn-ups, and the recess punching press prevents nylon gasket circumferential direction in entering into the recess. The utility model discloses can prevent that nylon auto-lock nut from beating the circumstances such as commentaries on classics, assembly difficulty by the nylon gasket that appears in screwing up the in-process to realize screwing up the fastening force that back nylon auto-lock nut has the same degree to workpiece surface, guarantee that workpiece surface atress is even, better adaptation fastening demand.

Description

Nylon self-locking nut

Technical Field

The utility model relates to a nut product, concretely relates to nylon self-locking nut.

Background

Among nut products, the nylon self-locking nut is widely applied due to the self-locking function and the simple structure. The biggest problem of the nylon self-locking nut in the process of being screwed is that the nylon gasket is easy to rotate, and then the problem of difficult assembly and the like occurs. In addition, the nylon self-locking nut in the prior art is difficult to control the fastening force; when a plurality of nylon self-locking nuts are used for fastening the surface of a workpiece, the nylon self-locking nuts are difficult to fasten the surface of the same workpiece to the same degree, so that the stress on the surface of the workpiece is uneven, and great adverse effects are caused on the thin-wall workpiece.

Disclosure of Invention

The utility model aims to solve the problems of the prior art, and the purpose of the utility model is to provide a nylon self-locking nut which can prevent the nylon gasket from rotating, being assembled difficultly and the like in the tightening process and has the same fastening force on the surface of a workpiece after the nylon self-locking nut is tightened.

The utility model discloses a through following technical scheme implementation:

nylon self-locking nut, including outer hexagon and nylon gasket, the internal screw hole that is equipped with of outer hexagon, its characterized in that: the up end an organic whole of outer hexagon is connected with the thin wall sleeve pipe, and the nylon gasket packs into thin wall sheathed tube hole, and thin wall sheathed tube last port is equipped with the turn-ups and compresses tightly the nylon gasket at the up end of outer hexagon, and the hole diameter of nylon gasket is not more than the path of screw hole, and the up end circumference of nylon gasket is laid many places recess, corresponds with many places recess, and many places recesses are laid along the circumference to the turn-ups, and the recess punching press prevents nylon gasket circumferential direction in entering into the recess.

The bottom end face of the outer hexagon body is provided with a counter bore, an elastic gasket is arranged in the counter bore, the diameter of an inner bore of the elastic gasket is larger than the major diameter of a threaded hole, the thickness of the elastic gasket is larger than the depth of the counter bore, and the difference between the thickness of the elastic gasket and the depth of the counter bore is smaller than the maximum compressed amount of the elastic gasket.

The elastic washer is composed of a rubber body and a metal thin pad arranged at the bottom of the rubber body, and the rubber body and the metal thin pad are of an integrated injection molding structure.

According to the nylon self-locking nut in the technical scheme, firstly, the upper end face of the nylon gasket is provided with a plurality of grooves, and the inner flanging of the upper end opening of the thin-wall sleeve is provided with a plurality of concave parts which are punched to enter the grooves, so that the circumferential rotation of the nylon gasket in the process that the nylon self-locking nut is screwed down is effectively prevented, and the problem of difficult assembly caused by the circumferential rotation of the nylon gasket is solved; secondly, above-mentioned technical scheme's nylon self-locking nut can easily control fastening power to can make all nylon self-locking nuts after screwing up easily realize having the same degree fastening power to the workpiece surface, guarantee that workpiece surface atress is even, better adaptation fastening demand. The working principle is as follows: when the nylon self-locking nut is used, the nylon self-locking nut is firstly screwed to the screw rod which exposes the surface of the workpiece, then the nylon self-locking nut is screwed until the bottom end face of the nylon self-locking nut contacts with the surface of the workpiece, the elastic washers of all the nylon self-locking nuts are elastically compressed and are all the same in compressed amount, and then all the nylon self-locking nuts can generate the fastening force with the same size on the surface of the workpiece, so that the nylon self-locking nuts after being screwed can be easily fastened on the surface of the workpiece to the same extent, and the stress uniformity of the surface of the workpiece is ensured.

Drawings

The utility model discloses there is following figure:

figure 1 is an axial cross-sectional view of the present invention,

fig. 2 is a top view in the direction of fig. 1.

Detailed Description

The details and the working principle of the embodiments of the present invention are described in detail below with reference to the accompanying drawings:

as shown in the figure, the utility model discloses a nylon self-locking nut, including outer hexagon 4 and nylon gasket 3, be equipped with screw hole 5 in the outer hexagon 4, outer hexagon 4's up end an organic whole is connected with thin wall sleeve pipe 2, nylon gasket 3 packs into thin wall sleeve pipe 2's hole, thin wall sleeve pipe 2's up end is equipped with interior turn-ups 1 and compresses tightly nylon gasket 3 at outer hexagon 4's up end, nylon gasket 3's hole diameter is not more than screw hole 5's path, six recesses 8 are laid to nylon gasket 3's up end circumference, correspond with six recesses 8, six concave yield 9 are laid along the circumference to interior turn-ups 1, prevent nylon gasket 3 circumferential direction in concave yield 9 punching press enters into recess 8. The bottom terminal surface of outer hexagon body 4 is equipped with counter bore 6, be equipped with elastic washer 7 in the counter bore 6, elastic washer 7 comprises the rubber body and the metal thin pad 71 of locating the rubber body bottom, the rubber body adopts integrative injection moulding structure with the metal thin pad, the hole diameter of elastic washer 7 is greater than the major diameter of screw hole 5, the thickness of elastic washer 7 is greater than the degree of depth of counter bore 6, the difference between the thickness of elastic washer 7 and the degree of depth of counter bore 6 will be less than the biggest compressed amount of elastic washer 7, this difference is the setting value, it decides to screw up the condition according to the concrete of nylon auto-lock nut.

Claims

1. Nylon self-locking nut, including outer hexagon and nylon gasket, the internal screw hole that is equipped with of outer hexagon, its characterized in that: the up end an organic whole of outer hexagon is connected with the thin wall sleeve pipe, and the nylon gasket packs into thin wall sheathed tube hole, and thin wall sheathed tube last port is equipped with the turn-ups and compresses tightly the nylon gasket at the up end of outer hexagon, and the hole diameter of nylon gasket is not more than the path of screw hole, and the up end circumference of nylon gasket is laid many places recess, corresponds with many places recess, and many places recesses are laid along the circumference to the turn-ups, and the recess punching press prevents nylon gasket circumferential direction in entering into the recess.

2. The nylon self-locking nut of claim 1, wherein: the bottom end face of the outer hexagon body is provided with a counter bore, an elastic gasket is arranged in the counter bore, the diameter of an inner bore of the elastic gasket is larger than the major diameter of a threaded hole, the thickness of the elastic gasket is larger than the depth of the counter bore, and the difference between the thickness of the elastic gasket and the depth of the counter bore is smaller than the maximum compressed amount of the elastic gasket.

3. The nylon self-locking nut of claim 2, wherein: the elastic washer is composed of a rubber body and a metal thin pad arranged at the bottom of the rubber body, and the rubber body and the metal thin pad are of an integrated injection molding structure.