CN2265916Y

CN2265916Y - Theft bolt and nut for automotive tyre

Info

Publication number: CN2265916Y
Application number: CN 96223051
Authority: CN
Inventors: 李有光; 谢白平
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-09-26
Filing date: 1996-09-26
Publication date: 1997-10-29
Anticipated expiration: 2006-09-26

Abstract

The utility model relates to a theft-proof bolt and a nut for an automotive tyre. The utility model is characterized in that the end of a hexagonal bolt or a hexagonal nut is provided with a circular hole; a plurality of ring grooves are arranged on the inner wall of the hole; the circular hole is provided with the lock core of a blade lock inside; a plurality of blades on the lock core are correspondingly matched with the ring grooves; the hexagonal bolt or the hexagonal nut is provided with a drum-shaped cover casing which is in sliding fit outside; a concave boss at the outer end of the cover casing is matched with the lug boss at the upper end of the lock core. The theft-proof bolt or nut has high safety and simple structure, ensuring that the tyre is not easy to be stolen; each tyre can achieve theft-proof effect by only one theft-proof bolt or nut.

Description

The antitheft bolt for vehicle tyre nut

The utility model relates to a kind of stolen bolt of motor tire, nut of preventing.

Development along with reform and opening-up, auto-domain also grows up thereupon, especially private car is being come into huge numbers of families, owing to lack garage, outdoor storage, stolen generation is arranged during motor tire, because motor tire is fixed on the axle at present, all is to use hexagonal bar iron, nut is tightened with spanner and to be got final product, this structure, make the thief that opportunity arranged, as long as, just can easily tire be unloaded and steal with one spanner, cause the car owner not have the sense of security, there is the people to make hexagonal bar iron or nut into polymorphic structure for this reason, though some improvement,, therefore the thief does not have the sense of security equally as long as can effortlessly steal tire with special-shaped spanner yet.

The purpose of this utility model is just in order to solve the problem of above-mentioned existence, and a kind of bolt that avoids theft, nut are provided, thereby can guarantee car owner's safety, and the thief is had not yet found openings to exploit.

The purpose of this utility model realizes by following technical proposal:

A kind of antitheft bolt for vehicle tyre, it is characterized in that one circular hole being arranged in the hexagonal bar iron end, a plurality of annular grooves are arranged on the inwall of hole, a page sheet lock pin is housed in the circular hole, a plurality of pages of sheets on the lock core and annular groove corresponding matching, hexagonal bar iron is equipped with the case of drum shape and bearing fit outward, and concave station cooperates with lock core upper end boss in the case outer end.

A kind of motor tire anti-theft nut, it is characterized in that one circular hole being arranged in the hexagonal nut end, a plurality of annular grooves are arranged on the inwall of hole, a page sheet lock pin is housed in the circular hole, a plurality of pages of sheets on the lock core and annular groove corresponding matching, hexagonal bar iron is equipped with the case of drum shape and bearing fit outward, and concave station cooperates with lock core upper end boss in the case outer end.

Wherein the annular groove width is greater than page or leaf sheet thickness, the height when the annular groove degree of depth will be worked energetically page sheet and stretches out.

Owing to take technique scheme, make to the utlity model has good anti-theft effect, simple in structure, easy to use, advantage and effect that consumption is few.

Fig. 1 is the anti-theft bolt structural representation;

Fig. 2 is the lateral plan of Fig. 1;

Fig. 3 is the anti-theft nut structural representation;

Fig. 4 is the lateral plan of Fig. 3.

Below in conjunction with accompanying drawing embodiment the utility model technology is further specified:

Fig. 1,2 is antitheft bolt for vehicle tyre, in hexagonal bar iron (5) end one circular hole is arranged, a plurality of annular grooves (2) are arranged on the circular-hole internal-wall, a page sheet lock pin (4) is housed in the circular hole, a plurality of pages of sheets (3) on the lock core and annular groove corresponding matching, hexagonal bar iron is equipped with the case (1) of drum shape and bearing fit outward, concave station and lock core end boss closely cooperate in the case, during use, key are inserted in the key hole (6), page sheet is regained in annular groove, extracting key page or leaf sheet and stretch into annular groove and lock, is impossible and want to steal, because key is in car owner's hand, even with the crime utensil, neither be easily.The width of annular groove is greater than the thickness of page sheet, when making page sheet under the effect of spring, insert annular groove, flexible freely, the height that the degree of depth of annular groove is stretched out greater than the page or leaf sheet guarantees a page or leaf mortice lock reliable operation, flexible movements.

When tire is installed, earlier case and lock core are taken off, turn hexagonal bar iron with spanner according to a conventional method and add case after fastening, then key is inserted in the lock core, put into hexagonal bar iron end circular hole again, after extracting key, the page or leaf sheet stretches into annular groove under the effect of spring, lock core can not withdraw from the circular hole of hexagonal bar iron, promptly the page or leaf sheet links into an integrated entity bolt and case, a plurality of pages of sheets are arranged, even galloping also can't be thrown case and throw out together with lock core on the lock core, install, tire has locked.

Fig. 3,4, be the motor tire anti-theft nut, in hexagonal nut (7) end one circular hole is arranged, a plurality of annular grooves (2) are arranged on the circular-hole internal-wall, a page sheet lock pin (4) is housed in the circular hole, a plurality of pages of sheets (3) on the lock core and annular groove corresponding matching, hexagonal nut is equipped with the case (1) of drum shape and bearing fit outward, and concave station and lock core end boss closely cooperate in the case, during use, key is inserted in the key hole (5), page sheet is regained in annular groove, extract key page or leaf sheet and stretch into annular groove and lock, and want to steal is impossible, because key is in car owner's hand, even with the crime utensil, neither be easily.The width of annular groove is greater than the thickness of page sheet, when making page sheet under the effect of spring, insert annular groove, flexible freely, the height that the degree of depth of annular groove is stretched out greater than the page or leaf sheet guarantees a page or leaf mortice lock reliable operation, flexible movements.

When tire is installed, earlier case and lock core are taken off, turn hexagonal nut with spanner according to a conventional method and add case after fastening, then key is inserted in the lock core, put into hexagonal nut end circular hole again, after extracting key, the page or leaf sheet stretches into annular groove under the effect of spring, lock core can not withdraw from the circular hole of hexagonal nut, promptly the page or leaf sheet links into an integrated entity nut and case, lock core has a plurality of pages of sheets, even galloping also can't be thrown case and throw out together with lock core, install, tire has locked.

Anti-theft bolt of the present utility model, nut, though on existing tire what bolt of rear end plates or nut, as long as a bolt of the present utility model or nut are installed, just can play antitheft effect, i.e. economy safety again.

Claims

1, a kind of antitheft bolt for vehicle tyre, it is characterized in that one circular hole being arranged in the hexagonal bar iron end, a plurality of annular grooves are arranged on the inwall of hole, a page sheet lock pin is housed in the circular hole, a plurality of pages of sheets on the lock core and annular groove corresponding matching, hexagonal bar iron is equipped with the case of drum shape and bearing fit outward, and concave station cooperates with lock core upper end boss in the case outer end.

2, a kind of motor tire anti-theft nut, it is characterized in that one circular hole being arranged in the hexagonal nut end, a plurality of annular grooves are arranged on the inwall of hole, a page sheet lock pin is housed in the circular hole, a plurality of pages of sheets on the lock core and annular groove corresponding matching, hexagonal bar iron is equipped with the case of drum shape and bearing fit outward, and concave station cooperates with lock core upper end boss in the case outer end.