CN2092584U

CN2092584U - Bicycle locks guarding against prying

Info

Publication number: CN2092584U
Application number: CN 91213399
Authority: CN
Inventors: 宗恩泽
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-03-22
Filing date: 1991-03-22
Publication date: 1992-01-08

Abstract

The utility model discloses an anti-prizing bicycle lock with an automatic contraction lock rod. A lock body and a lock rod seat are respectively fixed on two ends of a U-shaped lock beam, wherein, the lock rod seat can rotate by 90 DEG and can be rebounded by a spring, and a lock rod is arranged in a lock rod hole at the other side of the lock rod seat, can extend out of the lock rod hole, can enter a lock body pin hole, and can be locked. When the lock is unlocked, the lock rod retracts into the lock rod hole under the action of the tension of the lock rod spring. The whole structure has good anti-prizing performance because no clearance for prizing is provided. The utility model can be used on both front wheel and back wheel.

Description

Bicycle locks guarding against prying

The utility model relates to a kind of manufacturing technology of bicycle lock.The device that belongs to the bicycle that avoids theft.

This class device that is used for locking bicycle wheel at present, the overwhelming majority are to rivet together as shell with chassis and cover plate that iron sheet strikes out crab shape.The metal locking bar is placed in the semicircle slideway between chassis and the cover plate, and locking bar that stretches out and shell constitute a closed hoop and are locked by the lock core in the shell.There is a problem in this device, and that is exactly to have certain slit between chassis and the cover plate, and the instrument of available screwdriver sample is pried open shell and lost the effect of lock car.

The purpose of this utility model is to design a kind of characteristics that both kept former crab type bicycle lock to shrink locking bar automatically at the problems referred to above, has again simultaneously to make it to go the performance of prizing.This lock advantage is rational in infrastructure, easy to manufacture, with low cost, easy to use, anti-prying, and general Lock Factory all can produce.

Structure of the present utility model is characterized in that: the end at the U-shape lock beam is fixed on rivet on the lock body of being made by bulk metal.The other end of lock bridge has and holds the groove of locking spring, and vertical with groove have a rivet hole, this hole with traverse lock bar seat top medial angle on the rivet hole that can hold on the square groove of lock bridge end corresponding.An available rivet is connected as a single entity the spring in lock bar seat and lock bridge end and the groove thereof.Lock bar seat can be that axle rotates 90 degree with the rivet, and can be under the effect of lock bridge spring and restore.Lock bar seat is also manufactured with bulk metal.Latch arm hole is positioned at the outside portion of lock bar seat, is under the opening at this bicycle lock, and is partly parallel with the lock bridge near-end.The anterior little rear portion of the diameter of locking bar is big, scalable moving in latch arm hole.A spring is overlapped in the front portion of locking bar, with banking pin locking bar can not all be withdrawed from from lockhole then, and the front end of locking bar has a sealed ditch.Lock body below inner lower angle has a lockhole, a lock pin is arranged in the hole, and this lock pin is exactly the sealed ditch of snap close.

Below with reference to attached Fig. 1 and 2, promptly under unlatching and sealed two states, the utility model is described in further detail:

Fig. 1 is the schematic diagram of the utility model under opening.

Fig. 2 is the schematic diagram of the utility model under locked state.

With reference to accompanying drawing, an end of the U-shape lock beam (1) of this Antipicking bicycle lock is fixed on the medial angle of lock body (3) top with rivet (2), and lockhole (11) side-lower in lock body has lock pin (10) in the lockhole.There is square groove (13) inboard, lock bar seat (8) top, and the other end of lock bridge has lock bridge spring groove (6), and lock bridge spring (7) is arranged in the groove, and rivet (2) is lock bar seat (8), lock bridge spring (7) and lock bridge (1) riveted an one.Latch arm hole (14) is in the outside of lock bar seat (8), and there is lock rod spring (5) front portion of locking bar (9), and locking bar banking pin (4) can stop locking bar to withdraw from latch arm hole.

The sealed process of this pick-proof lock is, hand-held locking bar (9), with the lock bar seat rivet is the center of circle, lock bar seat is inwardly revolved turn 90 degrees, and promotes locking bar (9) then, compression lock rod spring (5), latch arm hole (14) is stretched out in the front portion of locking bar (9), enters lockhole (11), lock pin (10), embed the sealed ditch of locking bar (9) front end, i.e. locking.When unblanking, make lock pin propose sealed ditch, locking bar (9) is subjected to the effect of lock rod spring (5) tension force, withdraws from lockhole (11) and resets.Meanwhile, lock bar seat (8) also is reset by the elastic force effect of lock bridge spring (7), resets and carries out automatically.

Because the slit that does not have to execute sled in the entire infrastructure, Gu Er is the bicycle lock that a kind of energy pick-proof can shrink locking bar again automatically.This utility model both can be used to lock trailing wheel, also can be used for locking front-wheel, or front and back wheel was used all.

Claims

A kind of Antipicking bicycle lock, by lock bridge, whole lock body and lock bar seat, locking bar, lock bridge and lock rod spring and rivet combination form, it is characterized in that two ends at the U-shaped lock bridge, fix a lock body and lock bar seat respectively, lock bar seat top medial angle has one can hold the square groove of lock bridge end, the lock bridge end has the groove that holds the lock bridge spring again, lock bridge, lock bar seat is in the same place with closing-up with the lock bridge spring, lock bar seat can be done the rotation of 90 degree, latch arm hole is positioned at the opposite side of lock bar seat, locking bar inserts wherein can be elastic, and lock rod spring is in the locking bar front portion, and locking bar can stretch into lockhole and be rebounded.