CN2368735Y

CN2368735Y - Anti-stealing screw nut on vehicle wheel

Info

Publication number: CN2368735Y
Application number: CN 99210968
Authority: CN
Inventors: 范建明
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-05-14
Filing date: 1999-05-14
Publication date: 2000-03-15
Anticipated expiration: 2009-05-14

Abstract

The utility model discloses a theftproof screw nut for automobile wheels. The center of a polygonal column body is provided with a thread hole. The utility model is characterized in that the theftproof screw nut is a pentagon column body, and the external profile of the pentagon column body is provided with projection. The utility model has the advantages of simple structure, and low cost. Many kinds of combined theftproof screw nuts can form through the projection which is arranged on the angle top and side planes of the pentagon column body, each kind of the theftproof screw nuts can be dismounted only by corresponding spanners, and hence, the screw nuts have good theftproof performance. The utility model is suitable for automobiles, trolley buses, etc.

Description

The automotive wheel anti-theft nut

The utility model relates to a kind of automotive wheel anti-theft nut.

Automotive wheel all uses the hexagonal nut of standard to fix at present, can both load and unload with wheel wrench or common spanner; Easy to use, but the thief really can utilize common wrench dismounting nut, steals wheel.And automobile can't be started, cause economic loss.Application number is 91216146, name is called the patent application of tire anti-joyride device, this device is made up of clamp nut, roller, retainer, cam and the special wrench of wheel, on the inside and outside face of cylinder of clamp nut roller, retainer and cam are installed, roller and cam-shaped wedgewise structure are used the spanner rotating cam, roller and cam rely on the wedging and the clamp nut locking of wedge structure, though this device can play antitheft effect, complex structure, cost height.

The purpose of this utility model is that to design a kind of gabarit be pentagon in order to overcome above-mentioned deficiency, and is provided with the automotive wheel anti-theft nut of projection on gabarit, and is simple in structure, antitheft reliable.

The purpose of this utility model is achieved through the following technical solutions; A kind of automotive wheel anti-theft nut, central authorities establish tapped bore at the polygon cylinder, it is characterized in that the automotive wheel anti-theft nut is the pentagon cylinder, is provided with projection on the gabarit of pentagon cylinder.

Projection on the gabarit of pentagon cylinder can be located at the angle top of pentagon cylinder anti-theft nut or be located on the side plane or be located at simultaneously on top, angle and the side plane.

An end that is used for the special wrench of automotive wheel anti-theft nut is provided with pentagon hole that matches with the automotive wheel gabarit and the groove that matches with projection, and the other end of spanner is provided with outer six square toes of standard.

The utility model advantage:

1. because the automotive wheel anti-theft nut adopts the pentagon cylinder, it has five sides and five summits, by establishing projection and combination on different summits and establishing projection at not ipsilateral and diverse location and combination can obtain the different anti-theft nut of many kinds, each combination has only a cooresponding spanner just can unload corresponding anti-theft nut, being equivalent to a lock can only be opened by a cooresponding key, and theftproof performance is fine.

2. the utility model is simple in structure, and is with low cost.

3. the weight of anti-theft nut of the present utility model makes identically with original nut weight, the wheel balance.

Description of drawings:

Fig. 1 is the utility model embodiment 1 scheme drawing;

Fig. 2 is embodiment 2 scheme drawings;

Fig. 3 is embodiment 3 scheme drawings;

Fig. 4 is the nut wrench front view;

Fig. 5 is the left side view of Fig. 4;

Fig. 6 is hole, the groove scheme drawing of embodiment 1 spanner; (right side view of Fig. 4)

Fig. 7 is hole, the groove scheme drawing of embodiment 2 spanners; (right side view of Fig. 4)

Fig. 8 is hole, the groove scheme drawing of embodiment 3 spanners; (right side view of Fig. 4)

Further specify the utility model below in conjunction with drawings and Examples:

Embodiment 1, and please referring to Fig. 1, tapped bore 3 is established at the center of automotive wheel anti-theft nut, and exterior contour is a pentagon cylinder 2, is provided with arc-shaped convex 1 on a drift angle of gabarit; The groove that supporting special wrench need have cooresponding pentagon hole slot and match with projection, please referring to Fig. 4, Fig. 5, Fig. 6, one end of spanner 5 is provided with pentagon hole slot 8, and and the protruding groove 7 that matches, the present embodiment groove is positioned at pentagon drift angle place, and the other end of spanner is provided with outer six square toes 6 of standard; Band pentagon hole slot and band circular groove end with spanner during use are enclosed within on the anti-theft nut of present embodiment, and six square toes ends can load and unload with common hex drive tool or adjustable wrench outside standard, and are very convenient.In the practicality, only need establish an anti-theft nut in several captive nuts of a wheel and get final product.

Embodiment 2, please referring to Fig. 2, establish square protruding 4 on a side of the pentagon cylinder of automotive wheel anti-theft nut; Cooresponding special wrench is the groove 9 that has corresponding pentagon hole slot 8 and match with square projection, please referring to Fig. 7.

Embodiment 3, please referring to Fig. 3, be provided with arc-shaped convex 1 at drift angle place of pentagon cylinder of automotive wheel anti-theft nut, and be provided with square protruding 4 on side of pentagon cell body; Cooresponding special wrench should have corresponding pentagon hole slot 8 and groove 9,10.

By the foregoing description as can be known the pentagon gabarit have antitheft effect, anti-theft nut of the present utility model not only gabarit is a pentagon, and establishes projection on place, the top, angle of gabarit or side plane, so antitheft effect is fabulous.Can prevent effectively that automotive wheel is stolen.

Claims

1. automotive wheel anti-theft nut, central authorities are provided with tapped bore at the polygon cylinder, it is characterized in that: the automotive wheel anti-theft nut is the pentagon cylinder, is provided with projection on the gabarit of pentagon cylinder.

2. automotive wheel anti-theft nut as claimed in claim 1 is characterized in that: the projection on the pentagon cylinder gabarit can be located at the angle top of pentagon cylinder or be located on the side plane or be located at simultaneously on top, angle and the side plane.

3. special wrench that is used for the automotive wheel anti-theft nut is characterized in that: an end of spanner is provided with pentagon hole that matches with automotive wheel anti-theft nut gabarit and the groove that matches with projection, and the other end of spanner is provided with outer six square toes of standard.