CN2173834Y - Convenient theftproof lock for bicycle - Google Patents

Abstract

Disclosed is a convenient theft-proof lock for bicycles, which is composed of a lock body fixed on an annular frame with a single layer, a lock core arranged in the lock body and a lock clamp matching with a gear on the inner end of the lock core. The utility model has the advantages of simple structure, easy manufacture and installation, little material consumption, convenient unlocking, firm locking, high theft-proof performance, high water preventing degree, long service life, etc., and the cost of the utility model relates to 30% less than that of a lock in the same class.

Description

Convenient theftproof lock for bicycle

The utility model belongs to a kind of anti-theft lock for bicycle.

Existing anti-theft lock for bicycle kind is a lot, and characteristics are structurally respectively arranged, and can both play antitheft effect.But some anxious problems to be solved are arranged: if any lock construction too complicated, make relatively difficulty be installed, the product cost height just can't be repaired in case be out of order, the dissatisfied use of people; The lock that has " office " is many, will could open or lock by a lock with two hands during use, and promptly a handgrip key inserts lock core, revolve three-sixth turn, pintle hook lock is pulled out or advanced to the another hand simultaneously, just can open lock or lock lock, the time of opening, locking is long, inconvenience, and the user feels trouble; The lock construction that also has is unreasonable, and the parts waterproof is relatively poor, and rainwater enters in the lock body easily, after parts get rusty, as the untimely maintenance that oils, uses just hard.People wish to have good and cheap, and theftproof performance is good, and anti-theft lock for bicycle easy to use comes out.

The purpose of this utility model is to provide a kind of simple in structure, parts waterproof degree height, the anti-theft lock for bicycle of good anti-theft effect.

The method that the utility model is finished is that the toroidal frame of existing lock is changed the double-deck individual layer that is, lock body is fixed on toroidal frame one end, the pintle hook lock of being made up of tooth bar and locking plate is installed in the lock body, with the tooth bar of the gear adapted of lock core lower end pintle hook lock is come in and gone out in lock body, lock core despining 250 degree put in place, double wedge fit on through hole on the pintle hook lock elbow and toroidal frame one end, promptly locked; When key is just changeing 250 to lock core when spending, pintle hook lock is return in the lock body, and when being installed in the ball that is headed on by spring in the lock body and entering the semicircle orifice of the locking plate bottom on the pintle hook lock, pintle hook lock puts in place, and lock is opened entirely.Like this, utilize the gear rotation of lock core lower end, the engagement of the tooth bar on gear and the pintle hook lock is released pintle hook lock or draw in the lock body, realizes the function that this theftproof lock is opened, locked.

The utility model has the advantages that: simple in structure, manufacturing, easy for installation; Feed consumption is few, and it is low that product is deposited; Unblank conveniently, locking back theftproof performance is good; Waterproof degree height helps the parts maintenance, long service life.

Accompanying drawing 1 is an agent structure schematic diagram of the present utility model, and Fig. 2 is the vertical view of Fig. 1.

Most preferred embodiment of the present utility model is: utilize rivet (1) lock body (9) to be fixed on an end of individual layer toroidal frame (6), be installed in the lock body with the lock core (8) of key (10) adapted, the pintle hook lock that is installed in the lock body is made up of tooth bar (14) and locking plate (5), be fixed on the gear (2) and tooth bar engagement of lock core the inner, be installed in semicircle orifice (11) adapted of ball (3) bottom locking plate on the spring (4) in the lock body, double wedge (13) fit on the through hole on the pintle hook lock elbow (12) and the toroidal frame other end.

Lock is installed on the bicycle, during use, key is inserted lock core, dextrorotation 250 degree, the engaged transmission of the wheel and rack tooth on lock core top is return in the lock body pintle hook lock, simultaneously, the ball in the lock body enters under the effect of spring in the semicircle orifice of locking plate bottom, and lock is promptly opened.With key lock core derotation 250 degree, when the through hole on the pintle hook lock elbow put in place with toroidal frame one end on the double wedge cover fashionable, lock i.e. locking, security insurance.

Claims (1)

1. A kind of anti-theft lock for bicycle that makes things convenient for, comprise lock core, gear, it is characterized in that lock body (9) being fixed on an end of individual layer toroidal frame (6) with rivet (1), be installed in the lock body with the lock core (8) of key (10) adapted, the pintle hook lock that is installed in the lock body is made up of tooth bar (14) and locking plate (5), be fixed on the gear (2) and tooth bar engagement of lock core the inner, be installed in semicircle orifice (11) adapted of ball (3) bottom locking plate on the spring (4) in the lock body, double wedge (13) engagement on the through hole on the pintle hook lock elbow (12) and the toroidal frame other end.