CN206054493U

CN206054493U - The securing member that anti-nut comes off

Info

Publication number: CN206054493U
Application number: CN201621103062.6U
Authority: CN
Inventors: 苗超
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-10-08
Filing date: 2016-10-08
Publication date: 2017-03-29
Anticipated expiration: 2026-10-08

Abstract

This utility model is related to the securing member that a kind of anti-nut comes off, including screw bolt and nut, and nut is provided with screw, female thread is provided with screw, with M along its axial groove on bolt；Returning the car on the screw of nut has an arc-shaped slot, has N number of V-arrangement teeth groove along nut axial direction in arc-shaped slot；Locking bar is placed with groove, described locking bar includes locking bar body and V-arrangement lock tooth, and the width of described locking bar body is identical with the width of groove, V-arrangement locks tooth position in locking bar body side, and V-arrangement lock tooth is meshed with V-arrangement teeth groove.After nut is installed in place, insert in bolt indentation locking bar can lock nut, nut is loosened, prevent nut from coming off, if necessary to dismounting nut, after locking bar is taken out by normally dismantle nut.

Description

The securing member that anti-nut comes off

Technical field

This utility model is related to a kind of securing member, the securing member that particularly a kind of anti-nut comes off.

Background technology

Securing member is indispensable necessary during we live, for flexibly fixing two objects, but for example In the applications such as automobile, heavy construction machinery and factory, often there is the situation that nut loosening comes off then in Jing, causes dangerous situation to take place frequently, pole The earth threatens the safety of life and property of people.

Utility model content

In order to solve the problems, such as prior art, this utility model provides the securing member that a kind of anti-nut comes off, and this is tight Firmware inserts lock nut by a locking bar after nut is installed in place, in bolt indentation, nut is loosened, and prevents Only nut comes off, if necessary to dismounting nut, after locking bar is taken out by normally dismantle nut.

This utility model is adopted the following technical scheme that：The securing member that anti-nut comes off, including screw bolt and nut, set on nut There is screw, in screw, be provided with female thread, with M along its axial groove, M >=1 on bolt；Returning the car on the screw of nut has one There are in individual arc-shaped slot, arc-shaped slot N number of V-arrangement teeth groove along nut axial direction, N >=2；Locking bar is placed with groove, it is described Locking bar include locking bar body and V-arrangement lock tooth, the width of described locking bar body is identical with the width of groove, and V-arrangement is locked Tooth position in locking bar body side, locked tooth and be meshed with V-arrangement lock tooth by V-arrangement.

After being installed in place nut and bolt during use, locking bar is inserted from the groove of bolt, and makes the V-arrangement of locking bar Lock tooth is snapped in one of V-arrangement teeth groove, and locking bar is entirely pushed in groove, as V-arrangement lock tooth is stuck in nut, locking bar Body is stuck in the groove of bolt, so as to limit the relative rotation of nut and bolt, has screw thread to limit again between nut and bolt Its relative slip, it is possible to preventing nut loosening, or even comes off from bolt；When needing to dismantle nut, it is only necessary to from groove Middle extraction locking bar, you can normally dismantle nut.

Preferably, in order that no matter nut rotation is how many, can be locked with locking bar, i.e. locking bar body insertion groove When middle, V-arrangement lock tooth engage with one of V-arrangement teeth groove, it is assumed that the angle of the line in the section center of circle of groove and bolt is α, phase The angle of the line in the section center of circle of adjacent V-arrangement gullet base and hex nut is β, M* [α+（2N-2）β] >=360 °, M >=2, N >= 3。

As one embodiment of the present utility model, one end of locking bar body also has handle, convenient to put locking bar Enter groove or take out from groove.

Description of the drawings

Fig. 1 is the axonometric chart of the nut of the securing member that the anti-nut of this utility model slides.

Fig. 2 is the axonometric chart of the securing member that the anti-nut of this utility model slides.

Fig. 3 is the axonometric chart of the locking bar of the securing member that the anti-nut of this utility model slides.

Fig. 4 is the sectional view of the bolt of the securing member that the anti-nut of this utility model slides.

Fig. 5 is the sectional view of the nut of the securing member that the anti-nut of this utility model slides.

Specific embodiment

Below in conjunction with the accompanying drawings embodiment of the present utility model is described specifically：

The securing member that anti-nut slides, as Figure 1-Figure 5, including bolt 10, hex nut 20 and locking bar 30, spiral shell With three along its axial groove 11 on bolt 10；Hex nut 20 is provided with screw 21, is provided with female thread, screw in screw 21 Returning the car on 21 has an arc-shaped slot, and described arc-shaped slot is corresponding with an angle of hex nut 20, tool in arc-shaped slot There are 12 V-arrangement teeth groove 22 along hex nut axial direction；Locking bar 30 includes locking bar body 31, V-arrangement lock tooth 32 and handle 33, V-arrangement lock tooth 32 is located at 31 side of locking bar body, as needed, can be left side, or right side, V-arrangement lock tooth 32 and V-arrangement Teeth groove 22 can be intermeshed；The width of locking bar body 31 is identical with the width of groove 11, and handle 33 is located at locking bar body Locking bar 30 is inserted groove 11 or the taking-up from groove 11 to facilitate by 31 one end.

After being installed in place hex nut 20 and bolt 10 during use, locking bar 30 is inserted from the groove 11 of bolt 10, And the V-arrangement lock tooth 32 of locking bar 30 is snapped in one of V-arrangement teeth groove 22, locking bar 30 is entirely pushed in groove 11, by It is stuck in hex nut 20 in V-arrangement lock tooth 32, locking bar body 31 is stuck in the groove 11 of bolt 10, so as to limit hex nut 20 with the relative rotation of bolt 10, prevent hex nut 20 from loosening, or even come off from bolt 10；Need to dismantle hex nut 20 When, it is only necessary to extract locking bar 30 from groove 11 out, you can normal to dismantle.

As a preferred embodiment of the present utility model, the groove 11 of the present embodiment and the company in the section center of circle of bolt 10 Angle α=30 ° of line, angle β=5 ° of the line in the section center of circle of adjacent 22 bottom of V-type teeth groove and hex nut 20, then M* [α+ （2N-2）β] >=360 °, i.e. no matter hex nut 20 rotates how many, always has a V-arrangement teeth groove 22 overlap with groove 11, can make The V-arrangement lock tooth 32 of the locking bar 30 in groove 11 is snapped in wherein in a V-arrangement teeth groove 22, so as to limit bolt 10 and six The relative rotation of angle nut 20, prevents nut 20 from coming off.

Specific embodiment of the present utility model is the foregoing is only, is not limitation of the utility model, every utilization The equivalent transformation made by mentality of designing of the present utility model and principle, or directly or indirectly it is used in other related technology necks Domain, is included in scope of patent protection of the present utility model in the same manner.

Claims

1. the securing member that anti-nut comes off, including screw bolt and nut, nut are provided with screw, and female thread is provided with screw, and which is special Levy and be：With M along its axial groove, M >=1 on bolt；Returning the car on the screw of nut has an arc-shaped slot, arcuate groove There are in mouthful N number of V-arrangement teeth groove along nut axial direction, N >=2；Locking bar is placed with groove, described locking bar includes locking bar Body and V-arrangement lock tooth, the width of described locking bar body are identical with the width of groove, and V-arrangement locks tooth position in locking bar body one Side, V-arrangement lock tooth are meshed with V-arrangement teeth groove.

2. the securing member that anti-nut according to claim 1 comes off, it is characterised in that：Groove and the section center of circle of bolt The angle of line is α, and the angle of the line in the section center of circle of adjacent V-arrangement gullet base and hex nut is β, M* [α+（2N-2） β]≥360°。

3. the securing member that anti-nut according to claim 1 and 2 comes off, it is characterised in that：One end of locking bar body is also With handle.