CN2196162Y - Bicycle anti-theft lock - Google Patents

Abstract

The utility model relates to an anti-theft lock for bicycles, comprising a lock body, a lock spring, a lock pin and a key. The utility model is characterized in that the lock body is fixed on a bicycle frame between the front fork and the handle of a bicycle. When the utility model is used, the lock pin is pushed forward to extend in the bicycle frame and a front fork tube to lock the bicycle, and the axial included angle of the front and the rear wheels of the bicycle is 120 DEG. As long as the bicycle is locked, the bicycle which can not run in a straight mode can only make circles in situ. The opening and the closing of the lock are convenient.

Description

Bicycle anti-theft lock

The utility model belongs to the technological improvement of bicycle lock.

Present bicycle lock is based on the locking bicycle wheel substantially, and it is convenient inadequately to open and close.

The purpose of this utility model provides a kind of locking bicycle direction, makes the anti-theft lock for bicycle of the axial angle of bicycle wheels less than 120 degree.

The utility model is made of lock body, snap, lock pin, key.Lock body is arranged between bicycle front fork and handlebar on the vehicle frame.On vehicle frame and front vehicle fork, have the lockpin hole of concentric.During the lock car, inwardly push away lock pin, lock pin inserts the lockpin hole of vehicle frame and car front fork tube, takes out the key bicycle and just has been lockable.Steal bicycle person go-cart, car can not straight-line travelling, can only because of lock locking bicycle direction, make from passerby's front and back wheel angle less than 120 degree at the original place pitch of the laps.

When unblanking, key is inserted in the snap, pellet shot from a slingshot all in corresponding pellet shot from a slingshot groove on the key, screw key, snap rotates (being equivalent to gear), moves after making lock pin (being equivalent to tooth bar), resets by the back-moving spring on the lock pin.The switching principle that this Lock Lee is locked with common spring, the locking bicycle direction reaches pick-proof, antitheft purpose, and is simple in structure, and it is convenient to open and close.

Fig. 1 is a front view of the present utility model, and Fig. 2 is the A-A view of Fig. 1.The utility model is described in further detail below in conjunction with accompanying drawing.

The utility model comprises lock body 1 and locking and unlocking device, and locking and unlocking device is made up of pellet shot from a slingshot 5, snap 6, lock pin 7, back-moving spring 8, key 9, alignment pin 10.Lock body 1 is made up of two parts, during the peace lock, two parts on the suitable location of vehicle frame between front vehicle fork and handlebar, is connected by dovetail groove, and fixed with jump ring 4.Back-moving spring 8 is enclosed within on the lock pin 7, lock pin 7 inserts in the lock pin through hole of lock body 1, and can put in the lock pin through hole 12 and the lock pin through hole 11 on the front fork tube 3 on the vehicle frame 2, snap 6 is arranged in the lock body 1, vertical with lock pin 7, during snap 6 rotations, the gear teeth on the snap 6 can be stirred the tooth of lock pin, move after making it.Pellet shot from a slingshot 5 is arranged in the pellet shot from a slingshot chamber 13 of lock body 1.The rear portion of alignment pin 10 is fixed on the lock body 1, and the purpose of alignment pin 10 is set, and is after unblanking, and lock pin 7 can not leave lock body 1, but stops at the position of setting.

When unblanking, screw key 9 drives snap 6 and rotates, and the gear teeth of snap 6 move after stirring lock pin 7, make lock pin 7 leave vehicle frame 2 and front fork tube 3, and makes lock pin 7 reset (position that should keep when promptly unblanking) by back-moving spring 8.During the lock car,, lock pin 7 front ends are put in the lock pin through hole 12,11 of vehicle frame 2 and front fork tube 3, and transfer to key 9 to get final product as long as lock pin 7 is pushed away forward.Therefore, the switching lock is very convenient.

Claims (1)

1, anti-theft lock for bicycle comprises lock body 1 and opening and closing device, it is characterized in that lock body 1 is fixed on the vehicle frame between front vehicle fork and handlebar; Opening and closing device is made up of pellet shot from a slingshot 5, snap 6, lock pin 7, back-moving spring 8, key 9, alignment pin 10, back-moving spring 8 is enclosed within on the lock pin 7, lock pin 7 inserts in the lock pin through hole of lock body 1, and can put in the lock pin through hole 12 and the lock pin through hole 11 on the front fork tube 3 on the vehicle frame 2, snap 6 is arranged in the lock body 1, vertical with lock pin 7, during snap 6 rotations, its gear teeth move after can stirring lock pin 7, pellet shot from a slingshot is arranged in the pellet shot from a slingshot chamber 13 of lock body 1, the rear portion of alignment pin 10 is fixed on the lock body 1, and key 9 can insert in the snap 6.

Images