CN2328825Y

CN2328825Y - Seven angle anti-theft anti-loosing rail bolt

Info

Publication number: CN2328825Y
Application number: CN 98235392
Authority: CN
Inventors: 王春江; 王伟; 叶茂盛
Original assignee: Supply & Marketing Manage Department No4 Standard Component Wuhan
Current assignee: Supply & Marketing Manage Department No4 Standard Component Wuhan
Priority date: 1998-03-11
Filing date: 1998-03-11
Publication date: 1999-07-14
Anticipated expiration: 2008-03-11

Abstract

The utility model relates to a seven angles anti-theft anti-loosing rail bolt, which is used for fixing guard bars. The utility model is composed of a screw rod, an anti-theft ring and a screw nut. The utility model is characterized in that the anti-theft ring is provided with a safe edge tucked up, the bottom of the inner side of the anti-theft ring is provided with teeth in the same direction, one surface of the screw nut is provided with teeth which are matched with the teeth arranged on the anti-theft ring, and the periphery of the screw nut is heptagon-shaped. The utility model adopts the nonstandard heptagon-shaped screw nut and the anti-theft ring, people are hard to disassemble by using normal tools, and consequently, the goal of anti-theft can be achieved. The teeth are matched between the screw nut and the anti-theft ring, and consequently, an anti-loosing purpose can be reached.

Description

The antitheft locking guardrail bolt of heptangle

The utility model belongs to a kind of fixing device, the antitheft locking guardrail bolt of specifically a kind of heptangle.

At present, the expressway in the whole nation is many, in the both sides and the centre of expressway guardrail is arranged all, guardrail fixedly be the bolt of employing standard, just can demolition with common tool, can not play antitheft effect.

The purpose of this utility model provides a kind of guardrail bolt with antitheft locking functions, to overcome above-mentioned deficiency.

For achieving the above object, the utility model is made up of screw rod, pilfer band and nut, one ellipse garden shape platform 11 is arranged between the spiral shell head of screw rod and the bar, be characterized in that pilfer band has the safe edge of turning up, inside bottom at pilfer band has played tooth, the one side of nut 3 plays the tooth that matches with tooth on the pilfer band, and the outer peripheral shape of nut 3 is a heptagon.

Advantage of the present utility model is to have adopted off-gauge heptagon nut and pilfer band, makes people be difficult to dismounting with conventional instrument, has anti-theft feature; Have tooth to match between nut and the pilfer band, have locking functions, the utility model is simple in structure, and is easy to make.

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

Fig. 2 is a screw-rod structure schematic representation of the present utility model.

Fig. 3 is a pilfer band structural representation of the present utility model.

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

Fig. 5 is the utility model nut structure schematic representation.

Fig. 6 is the left view of Fig. 5.

Fig. 7 is that the A of Fig. 6 is to view.

Further specify the utility model below in conjunction with accompanying drawing.

During with the utility model nonfloating rail, at first screw rod 1 is inserted the slotted hole that needs fixed position, ellipse garden shape platform 11 on the screw rod 1 is embedded in the slotted hole, put the pilfer band 2 of safe edge 21 then, pilfer band 2 inside bottom play the tooth 22 of direction unanimity, use special tool that heptangle nut 3 is screwed in the screw rod 1, the one side of nut 3 band teeth 31 is finished fixation procedure after matching with the tooth on the pilfer band 2 and screwing.

The outer peripheral shape of nut of the present utility model also can be triangle.

The utility model also can be used for other needs antitheft fixing.

Claims

1, the antitheft locking guardrail bolt of a kind of heptangle, it is made up of screw rod 1, pilfer band 2 and nut 3, one ellipse garden shape platform 11 is arranged between the spiral shell head of screw rod 1 and the bar, it is characterized in that: pilfer band 2 has the safe edge of turning up 21, inside bottom at pilfer band 2 has played tooth 22, the one side of nut 3 plays the tooth 31 that matches with tooth on the above-mentioned pilfer band 2, and the outer peripheral shape of nut 3 is a heptagon.

2, according to the antitheft chek bolt of the described heptangle of claim 1, it is characterized in that; The direction of tooth is identical on the pilfer band 2.

3, according to the antitheft chek bolt of the described heptangle of claim 1, it is characterized in that: the outer peripheral shape of nut 3 is a triangle.