CN213628415U - Steel wire anti-dismounting nut - Google Patents

Abstract

The invention relates to a steel wire anti-dismounting nut which uses the shortest steel wire to achieve the effect of preventing the nut from dismounting by using a semicircular steel wire retaining ring, and is developed on the basis of the semicircular steel wire retaining ring.

Description

Steel wire anti-dismounting nut

The technical field is as follows:

the invention relates to a fastener, in particular to a non-detachable steel wire anti-dismounting nut.

Background art:

in the patent nos.; ZL200920035553.5, a steel wire anti-dismounting nut with a simple anti-dismounting structure is developed.

The utility model has the following contents:

the invention has the effect that the nut cannot be easily disassembled by adopting a steel wire to block the nut.

The technical problem to be solved is as follows:

the anti-disassembling effect of the semicircular steel wire retainer ring can be achieved by using the shortest steel wire.

The technical scheme is as follows:

the steel wire anti-dismounting nut consists of a nut body and a steel wire, and is characterized in that the nut body is provided with a nut body; the method is characterized in that a half-moon-shaped groove which extends into a shallow arc slope surface along the screwing direction of a thread is arranged on the inner thread wall of a nut, a small hole which can be inserted with a steel wire is arranged on the right-angle wall surface of the groove, (note: for manufacturing convenience, a processing technology that the half-moon-shaped groove, the small hole and a concave platform are upset in red (cold) firstly, then the concave platform is pressed into a cover plate to be tightly pressed, and then the inner thread is tapped) is adopted, and the steel wire is characterized in that; namely a spring arc steel wire which is smaller than the arc of the groove bottom.

An assembly feature; the steel wire is glued and connected in the small hole of the straight wall of the groove by glue, and the front end of the steel wire anti-dismounting nut is flush with the inner thread cusp.

Mounting features; the steel wire anti-removal nut is screwed in to be installed and fastened on the bolt and the screw rod outcrop part of the nut on the connecting piece, the steel wire can press the outer thread groove in the screw rod screwing process without influencing the installation speed, and the steel wire can be screwed and installed by a wrench after being screwed.

A removal prevention feature; in the process of screwing the steel wire anti-disassembly nut into the screw, the arc-shaped steel wire is continuously lifted upwards along the outer thread groove and is screwed into the outer thread along the groove, and the installation is not influenced. When the screw nut is disassembled by reversely rotating the steel wire, the arc-shaped steel wire in the outer thread tooth groove is pushed by reverse friction force and extrudes the steel wire to reduce the arc shape, so that the elastic force is increased, the front end of the arc-shaped steel wire is propped against the inner thread groove, the arch surface is propped against the wall surface of the bottom of the groove, and the arc-shaped steel wire is clamped in the tooth groove of the outer thread tooth to stop the nut from being disassembled.

The invention has the beneficial effects that:

the invention has the beneficial effect that the shortest steel wire is used for realizing the anti-dismounting effect of the nut.

Description of the drawings:

FIG. 1: the position of the steel wire in the groove; A-A section view

FIG. 2: a steel wire anti-removal nut; front view

FIG. 3: the shape of the mounting steel wire in the external thread tooth socket; B-B section view

FIG. 4: installing a steel wire anti-dismounting nut; front view

FIG. 5: the shape of the steel wire in the outer thread tooth socket is disassembled; C-C sectional view

FIG. 6: disassembling the steel wire anti-disassembly nut; front view

In FIGS. 1 to 6

1: a nut body;

2: an arc-shaped steel wire;

3: a bolt;

4: a nut;

5: a linker;

the specific implementation mode is as follows:

the invention is described in detail below with reference to the accompanying drawings:

example 1:

a wire break nut mounting feature as shown in fig. 1 and 2; gluing the steel wire with glue₂Adhered to the groove₁Exposed steel wire fixed in small hole of straight wall₂Screw rod for rotating person₃When in use, the tooth socket is automatically adjusted to enter the outer tooth socket₃The steel wire anti-dismounting nut.

Example 2:

a mounting feature as shown in FIG. 3 and FIG. 4; screwing in the steel wire anti-release nut to be installed and fastened on the connecting piece₅Upper bolt₃And nut₄Screw rod of₃Outcrop part, steel wire₂In the screw-in screw₃In the process, the external thread tooth socket can be tightly pressed₃The installation speed is not influenced, and the wrench can be used for screwing and installing after screwing.

Example 3:

the anti-removal feature shown in FIG. 5 and FIG. 6; screw-in screw rod of steel wire anti-dismounting nut₃In the process of (2), the arc-shaped steel wire₂External thread socket₃Continuously raise and raise upwards, screw in external screw thread along groove₃The installation is not affected. When the steel wire anti-dismounting nut is dismounted in a reverse rotation mode, the outer thread groove is formed₃Inner arc steel wire₂Pushed and extruded steel wire under reverse friction force₂The arc shape is reduced, the elasticity is increased, and the front end of the arc shape is propped against the outer tooth socket₃The inner and the arch faces are propped against the bottom of the groove₁Wall surface clamped on the external thread₃Tooth socket₃Internal blocking nut₄And (6) disassembling.

The above examples do not limit the invention in any way, and all technical solutions obtained by means of equivalent substitution or equivalent transformation fall within the scope of protection of the invention.

Claims (3)

1. The steel wire anti-dismounting nut is characterized in that: the nut body is formed by arranging a half-moon-shaped groove which is deep into a shallow arc slope surface along the screwing direction of a screw thread on the inner thread wall of the nut, wherein a small hole capable of inserting a steel wire is arranged on the right-angle wall surface of the groove, and the steel wire is a spring arc-shaped steel wire which is smaller than the arc shape of the bottom of the groove.

2. The steel wire anti-removal nut according to claim 1, wherein: the front end of the steel wire adhered in the small hole is flush with the cusp of the internal thread.

3. A steel wire anti-removal nut according to claim 1 or 2, wherein: when the nut is disassembled in a reverse rotation mode, the outer thread tooth groove pushes and extrudes the steel wire to reduce the arc shape, the elasticity is increased, the front end of the outer thread tooth groove is propped in the outer tooth groove, and the arc-shaped arch surface is propped against the wall surface of the bottom of the groove to form an anti-disassembling structure for stopping the nut from being disassembled.

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