CN205315458U - Antitheft nut subassembly structure and special wrench movement instrument thereof - Google Patents

Abstract

The utility model relates to an antitheft nut subassembly structure and special wrench movement instrument thereof, antitheft nut subassembly structure, including nut (1), be equipped with an external member (2) on nut (1), this external member (2) are for establishing the loop forming element on nut (1), and the fastening is turned round regularly at nut (1) to this loop forming element, and the parcel prevents that the nut is by the wrench movement outside nut (1). The utility model discloses can be better prevent that the nut from by being loosened at will, and then playing the theftproof function effectively.

Description

A kind of anti-theft nut component structure and special twisting instrument thereof

Technical field

This utility model relates to a kind of securing member and specific purpose tool thereof, particularly to a kind of nut assembly with anti-theft feature and the specific purpose tool twisting this nut assembly.

Background technology

At present, bicycle rim is rack-mount each through rotating shaft, then utilizes the hex nut of standard to be fixed. So, cycle wheel is namely detachable just with the spanner of a standard, and thus installing/dismounting is simple and convenient, but also therefore, it is easy to person thefted's dismounting is stolen.

Utility model content

The purpose of this utility model is, has above-mentioned weak point to solve existing nut, improves a kind of anti-theft nut component structure and special twisting instrument thereof.

A kind of anti-theft nut component structure, includes nut, is provided with sleeve piece on nut, and this external member is the annular element being located on nut, and this annular element, when nut tightens fixing, is wrapped in outside nut and prevents nut to be twisted.

Above-mentioned external member is a ring-shaped jacket, being provided with the knuckle limit of infolding bottom ring-shaped jacket, the internal diameter of described ring-shaped jacket is slightly larger than the external diameter of nut, when described nut check is fixed, being fixed on nut by compressing knuckle limit by external member, ring-shaped jacket surrounds and prevents from outside nut being twisted.

Above-mentioned knuckle limit annular is distributed in bottom ring-shaped jacket, one-body molded with ring-shaped jacket.

Above-mentioned knuckle limit is the annular right-angle limit of infolding bottom ring-shaped jacket.

The twisting stress surface of two parallel correspondences it is provided with outside above-mentioned nut.

Above-mentioned nut is the interior round end securing member with screw, and described twisting stress surface is located at corresponding position outside round end securing member.

A kind of special twisting instrument for above-mentioned anti-theft nut component, include an insertion rod and a torsional pole, described insertion rod has the bayonet socket coordinated with stress surface outside nut, and described torsional pole is for be vertically located in insertion rod, for twisting the lever straight-bar of insertion rod.

Above-mentioned insertion rod is provided with a through hole, and described torsional pole is vertical with insertion rod through through hole, forms the torsional pole of scalable dismounting.

The beneficial effects of the utility model:

1, this utility model is provided with sleeve piece on nut, and this external member, when nut tightens fixing, is wrapped in outside nut and prevents nut to be twisted. Therefore, can better prevent nut from arbitrarily being unclamped, and then effectively act as anti-theft feature.

2, be provided with the knuckle limit of infolding bottom this utility model external member, this knuckle limit with nut tighten and fixing, simple in construction, easy to use.

3, special twisting instrument of the present utility model is made up of an insertion rod and a torsional pole, insertion rod has the bayonet socket coordinated with stress surface outside nut, during use, insert in external member by the bayonet socket of insertion rod, bayonet socket coordinate with the stress surface of nut carry out twisting nut, realize elastic function, simple in construction, use light.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the structural representation of this utility model external member.

Fig. 3 is nut structure schematic diagram of the present utility model.

Fig. 4 is the use schematic diagram of special twisting instrument of the present utility model and nut assembly structure.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Referring to figs. 1 through a kind of anti-theft nut component structure shown in Fig. 4, including nut 1, be provided with sleeve piece 2 on nut 1, this external member 2 is the annular element being located on nut 1, and this annular element, when nut 1 tightens fixing, is wrapped in outside nut 1 and prevents nut to be twisted.

The twisting stress surface 11 of two parallel correspondences it is provided with outside the nut 1 of this anti-theft nut component structure. External member 2 is a ring-shaped jacket, is provided with the knuckle limit 21 of infolding bottom ring-shaped jacket, and this knuckle limit 21 annular spread is bottom ring-shaped jacket, one-body molded with external member 2. The internal diameter of described ring-shaped jacket is slightly larger than the external diameter of nut 1, concrete external member 2 internal diameter is more than nut 1 external diameter 2-5mm, being advisable by rotating nut 1, when described nut 1 is locked, being fixed on nut 1 by compressing knuckle limit 21 by external member 2, ring-shaped jacket surrounds and prevents from being twisted outside nut 1.

Further, described knuckle limit 21 is the annular right-angle limit of infolding bottom ring-shaped jacket. This nut 1 is the interior round end securing member with screw 12, and twisting stress surface 11 is located at the outer corresponding position, both sides of round end securing member.

The special twisting instrument of above-mentioned anti-theft nut component includes insertion rod 3 and a torsional pole 4, described insertion rod 3 diameter is less than the internal diameter of external member 2, the bayonet socket 31 coordinated with stress surface outside nut 1 is had in insertion rod 3, this bayonet socket is a recess, described torsional pole 4 is for be vertically located in insertion rod 3, for twisting the lever straight-bar of insertion rod 3.

In order to improve convenience and the usability of specific purpose tool, described insertion rod 3 is provided with a through hole 32. Described torsional pole 4 is vertical with insertion rod 3 through through hole 32, forms the torsional pole of scalable dismounting. Dismounting so can be facilitated to carry, assemble again during use.

When this utility model uses; the bayonet socket 31 utilizing special twisting instrument insertion rod 3 snaps in nut both sides and is positioned on the twisting stress surface 11 of external member 2, can twist nut and carry out tightening or back-outing, and uses simple; adopt general purpose tool cannot twist nut 1, there is good defencive function.

Claims (8)

1. an anti-theft nut component structure, include nut (1), it is characterized in that: on nut (1), be provided with sleeve piece (2), this external member (2) is the annular element being located on nut (1), this annular element, when nut (1) tightens fixing, is wrapped in nut (1) outside and prevents nut to be twisted.

2. a kind of anti-theft nut component structure according to claim 1, it is characterized in that: described external member (2) is a ring-shaped jacket, the knuckle limit (21) of infolding it is provided with bottom ring-shaped jacket, the internal diameter of described ring-shaped jacket is slightly larger than the external diameter of nut (1), when described nut (1) is locked, being fixed on nut (1) by compressing knuckle limit (21) by external member (2), ring-shaped jacket surrounds nut (1) outside and prevents from being twisted.

3. a kind of anti-theft nut component structure according to claim 2, is characterized in that: described knuckle limit (21) annular spread is in external member (2) bottom, one-body molded with external member (2).

4. a kind of anti-theft nut component structure according to claim 2, is characterized in that: described knuckle limit (21) is the annular right-angle limit of external member (2) bottom infolding.

5. a kind of anti-theft nut component structure according to claim 1, is characterized in that: described nut (1) outside is provided with the twisting stress surface (11) of two parallel correspondences.

6. a kind of anti-theft nut component structure according to claim 5, it is characterized in that: described nut (1) is the interior round end securing member with screw (12), and described twisting stress surface (11) is located at corresponding position outside round end securing member.

7. the special twisting instrument for the arbitrary described anti-theft nut component of claim 1 to 6, it is characterized in that: include an insertion rod (3) and a torsional pole (4), described insertion rod (3) has the bayonet socket (31) coordinated with nut (1) outside stress surface, described torsional pole (4), for be vertically located in insertion rod (3), is used for twisting the lever straight-bar of insertion rod (3).

8. special twisting instrument according to claim 7, it is characterized in that: it is characterized in that: described insertion rod (3) is provided with a through hole (32), described torsional pole (4) is vertical with insertion rod (3) through through hole (32), forms the torsional pole of scalable dismounting.