CN2136871Y - Anti-picking lock for bicycle - Google Patents

Abstract

The utility model discloses a device of an anti-picking bicycle lock, which is fastened on the fork of the bicycle by a screw in a reverse direction, when locked, a beam can seal the screwing hole of a tightening screw, and the problems that the bicycle lock is easy to be disassembled and prized are solved. The utility model is difficult to be destroyed even if a thief has a tool, having the advantages of high safety, convenient installation, reliable anti-theft performance, and easy fabrication, easy fabrication.

Description

Anti-picking lock for bicycle

The utility model relates to a kind of bicycle lock, can seal the locking device of mounting screw after particularly shutting.

The lock that existing bicycle theft-prevention uses is to be installed on the back vent of vehicle seat bottom with some screws, be used for pinning the trailing wheel of bicycle, outside the mounting screw of this bicycle lock all is exposed to, the bicycle lock shell uses the iron sheet manufacturing, generally hold the stealer of instrument and all can pull down screw easily, destroy lock housing or lock bridge, lock was lost efficacy.For addressing this problem, the common practice is to adopt the iron sheet of thickening to make lock housing or overstriking lock bridge, so still can not prevent burglar's behavior.

The rotary horizontal door bolt locking device for bicycle that Chinese patent 8209806.3 proposes, can solve lock housing and be prized and destroy the problem of lock bridge, increased the difficulty of picking lock, but outside this Unit Installation screw was exposed to, annulus and riveted joint position that this device is gone up with the iron sheet manufacturing became ruined weak link.

The purpose of this utility model is that a kind of locking device for bicycle that can seal mounting screw after shutting will be provided, and it can prevent effectively that the burglar from using the general purpose tool picking lock.

The purpose of this utility model is achieved in that takes off trim (6), when unblanking, mobile lock bridge (8) and (4), make hole (10) the difference alignment screw (11) and (12) on the preceding lock bridge (4), use screwdriver difference rotating screw (11) and (12) from hole (10), with snap close (9) and lock body (7) fastening on bicycle fork one side, after shutting, hole (10) on the preceding lock bridge (4) is not aimed at screw (11) and (12), tightening screw (11) and (12) are sealed by back lock bridge (8) and preceding lock bridge (4), attachment screw (15) and (16) between lock body (7) and the lock ring (1) are blocked by bicycle fork, thereby have guaranteed can not to be destroyed easily after this device shuts.

The utility model is owing to be anti-cartridge screw structure between lock body and the snap close, after shutting, the screw-in hole of tightening screw is sealed by lock bridge, attachment screw between lock body and the lock ring is sealed by the car fork, lock, car are become one, increased the difficulty of picking lock, also be difficult to destroy this device even the burglar holds instrument.

Fig. 1 is the external form figure of the utility model preferred embodiment.

Fig. 2, Fig. 3 are respectively the front view and the vertical views of the utility model preferred embodiment.

Fig. 4, Fig. 5 are respectively the front view and the vertical views of another preferred embodiment of the utility model.

Penetrate hole seat (2) and be connected with welded construction with lock ring (1) with lock bridge seat (3) referring to Fig. 1, a pair snap close, lock ring (1) uses rectangle cross section band steel bending to form.

Referring to Fig. 2, Fig. 3, when unblanking, key drives lock core (5) and rotates, lock core (5) boosts dead bolt (13) upwards, dead bolt (13) is deviate from the hole (17) on the lock bridge (8), spring (14) ejects lock body with lock bridge (8), lock bridge (4) is retracted into lock body, lock is opened, connect with pin between lock bridge (8) and (4), when unblanking, natural folding is sagging after lock bridge (8) withdraws from lock body, and screw (16) blocks lock bridge (4), does not make lock bridge (8) and (4) deviate from lock body (7), when shutting, lift lock bridge (8) and lock bridge (8) is pushed lock body, compression spring (14), dead bolt (13) return, and snap in the hole (17) on the lock bridge (8), lock bridge (8) is blocked by dead bolt (13) and shuts.

Referring to Fig. 4, Fig. 5, the spring (14) that lock bridge when unblanking (4) and (8) are installed in the lock bridge seat (3) ejects, pin (18) blocks lock bridge (4), do not make lock bridge (8) and (4) deviate from lock body (7), the rectangle cross section is adopted in lock bridge (8) and (4), the thickness of lock body (7) is reduced, and is a kind of thin type lock body structure.

The device of the Antipicking bicycle lock that the utility model proposes, safe in utilization, easy for installation, antitheft reliable, make easily, solved the problem that bicycle lock is prized easily.

Claims (5)

1, a kind of Antipicking bicycle lock is characterized in that this device is connected lock body (7) and snap close (9) by the anti-screw (11) that is contained in the lock body (7) with (12), lock bridge (8) and (4) but the screw-in hole of closed screw (11) and (12).

2, device according to claim 1 is characterized in that lock bridge (4) upward porose (10).

3, device according to claim 1 is characterized in that lock body (7) is connected with (16) with screw (15) with lock ring (1).

4, device according to claim 1 is characterized in that lock ring (1) rectangle cross section band steel bending forming.

5, device according to claim 1 is characterized in that lock bridge is by two sections (4) with (8) are hinged forms.

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