CN2168927Y

CN2168927Y - Multifunctional chain lock with internal beam

Info

Publication number: CN2168927Y
Application number: CN 93207496
Authority: CN
Inventors: 陈建新
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-10-20
Filing date: 1993-03-31
Publication date: 1994-06-15
Anticipated expiration: 2003-03-31

Abstract

The utility model which relates to a multifunctional chain lock with an internal beam belongs to a lock, and the utility model is composed of the core of a night lock, a straight bar type lock beam, a door nose, a chain, a spring, a lock body, etc. The utility model is characterized in that when the utility model is locked, the chain and the door nose are respectively tightly pinned in two open slots by the straight bar type lock beam arranged in the lock body, and the two open slots are arranged on the lock body; breakage in the forms of prizing, smashing, shearing, etc. is effectively prevented, and the antitheft performance of the utility model is enhanced. The utility model has the advantages that the utility model which is multifunctional and dualpurpose can be used as a padlock to apply to common fixed objects, such as a door, a window, a cabinet, a cupboard, etc., and the utility model can also be used as a chain lock to lock moveable objects, such as a bicycle, a rack truck, a handcart, etc.

Description

Multifunctional chain lock with internal beam

The utility model relates to a kind of chain and hangs multifunction anti-theft lock, and particularly a kind of internal beam type chain is hung multifunctional lock, belongs to the lock class.

The padlock of various models common feature structurally is that a U-shape lock beam that exposes is all arranged in the market, adopts the padlock of this structure, all the shortcoming that exists modes such as door nose and lock bridge are easy to be prized, pound, cut to destroy.For this reason, the disclosed application number of utility model patent communique is that " a kind of closed padlock " of 87201536 " Padlock with a case ", CN204616U's " totally-enclosedly, rainproof, anti-cut, prize, pound, padlock " and CN2085401U is though solved the problems referred to above preferably, but owing to all adopt full-enclosed structure, processing technology is relatively poor, simultaneously, above-mentioned several lock can only be made padlock, function singleness, and accommodation is subjected to certain limitation.

The purpose of this utility model is to provide a kind of internal beam type theftproof lock that is easy to process that has the chaining dual-purpose multifunctional concurrently to the public.

After the purpose of this utility model is achieved in that door nose on the locked object spare or the chain that passes the double headed roller pin-and-hole on the locked object spare insert two open slots on lock body top respectively, is pressed into the straight-bar type lock bridge hidden in lock body in vertical and realizes locking with the lock body groove.The unlatching of this lock is then forced bayonet lock to free the straight-bar type lock bridge downwards by the rotation lock cylinder and is finished unlocking action.

Below in conjunction with embodiment and accompanying drawing the technical solution of the utility model and using method are further described:

Fig. 1 is a structure chart of the present utility model, and Fig. 2 is the door nose structure chart that matches with the utility model, and Fig. 3 is straight-bar type lock bridge figure of the present utility model, and Fig. 4 is the chain structure figure supporting with the utility model.By the visible the utility model of Fig. 1～Fig. 4 is to have two parallel slots by a top, the left side upside has a hole that is horizontally through the installation lock bridge of two parallel slots, its right-hand member downside have a hole and lower surface place, corresponding two parallel slot centre positions that lock cylinder is installed have one with the lock body (5) in the hole of the perpendicular installation bayonet lock of lock beam hole and lock bridge (1), lock bridge spring (2), bayonet lock (3), bayonet lock spring (4), lock cylinder and key assembly (7)～(11), a nose (12), chain compositions such as (13).

The utility model using method and operating principle are as follows: when the utility model is used as padlock, earlier two sheet door nose (12) (see figure 2)s with holes are inserted in the groove of lock body (5) upper right broad before locking, the straight-bar type lock bridge (1) that will protrude in the lock body left surface then is pressed into lock body makes it pass door nostril, after lock bridge (1) passes door nostril, under the effect of bayonet lock spring (4), bayonet lock (3) moves upward and snaps in the skewed slot on the lock bridge (1), lock bridge in the resistance (1) thus return is realized locking.When unblanking, with key (11) lock core (7) that turns right, rotation along with lock core (7), the boss compressing bayonet lock (3) on lock core (7) top moves downward, the draw-in groove that after bayonet lock (3) drops to certain position, breaks away from lock bridge (1), a nose (12) is freed in just outside resilience under the effect of lock bridge spring (2) of lock bridge (1), finishes unlocking action.When the utility model is done the chain lock use, open lock earlier, again the stator (see figure 4) of chain (13) one end band open pores is passed through the plane of orientation on the lock bridge (1), insert in the narrow groove of opening of lock body (5) upper left-hand, insert in the open slot of lock body (5) upper right after then the other end of chain (13) being passed locked object spare, press lock bridge (1) then and make it finish locking by link aperture.

The utility model has the advantages that:

(1) internal beam type structure, theftproof performance is good; (2) chain, extension unite two into one, and be multi-functional, applied widely; (3) simple in structure, technology good, production cost is low.

Claims

1, a kind of internal beam type chain is hung multifunction anti-theft lock, by lock body (5) and installation lock cylinder (7) within it, straight-bar type lock bridge (1), bayonet lock (3), bayonet lock spring (4), lock bridge spring (2), door nose (12), chain (13), key compositions such as (11), it is characterized in that: (A) top of lock body (5) has two open parallel grooves, the left side upside has a hole that is horizontally through the installation lock bridge (1) of two open slots, the right side downside has a hole and the two open slot centre positions, lock body (5) lower surface that lock cylinder is installed and has a hole perpendicular to the installation bayonet lock (3) of lock beam hole, (B) the straight-bar type lock bridge (1) that is installed in the lock body (5) is the little axle of step that is processed with an oblique angle type draw-in groove and a plane of orientation above, insert door nose (12) in lock body (5) the upper right open slot when (C) locking and be two one and be drilled with the sheet metal that a lock beam hole and other end are drilled with several screw holes, the chain that inserts respectively when (D) locking in (5) two open slots of lock body is made up of sheet metal and several metal chain links of a headband open pore.