CN2736480Y - Anti-theft mechanical lock - Google Patents

Abstract

The utility model relates to a theftproof mechanical lock. The lock pin hole of the mechanical lock unlatched with key in the present bazaar is usually exposed. Therefore, no matter how precise the mechanical lock is it is possible to unlock it with a tool such as master key inserted into the lock pin hole, which is the abuse of common mechanical locks. The aim of the utility model is to provide a theftproof mechanical lock without a lock pin hole. The front end of the locking mechanism of the lock pin is provided with a key delivery device which is provided with a breach for inserting the key. The key is provided with a concave-convex slot, and the position and the shape are corresponding with the position on the locking mechanism. The utility model overcomes the shortage of the prior art without the traditional lock pin hole, and the locking mechanism in the lock pin is isolated from the outside completely, thoroughly avoiding the probability of unlatching with the master key and achieving the effect of anti-theft and simple structure.

Description

Theft-preventing mechanical lock

Technical field

The utility model relates to a kind of theft-preventing mechanical lock.

Background technology

Use the key mechanical lock opened in the market, normally lock core hole exposes.Therefore, no matter be how accurate mechanical lock, all might use the instrument of master key one class to insert people's lock core hole lock is pushed aside, this is the drawback of common mechanical lock.

Summary of the invention

The purpose of this utility model provides a kind of theft-preventing mechanical lock that does not have lock core hole.

Purpose of the present invention can be achieved through the following technical solutions: theft-preventing mechanical lock does not have lock core hole, in lock body 1, in plug body 12, the locking mechanism front end of lock core 2 is equipped with key conveying device 7, have the breach 8 of setting-in key 4 on the key conveying device 7, key 4 is provided with tongue and groove 6, and the position of locking mechanism 14 is corresponding on its position and depth shape and the fixed block 13; Spring 15 is housed in locking mechanism 14; On moving block 9, be provided with spring 10 and limit rod 11, be provided with retainer plate 16 simultaneously; Push rod 18 and tapered 20 and gear 21, locking bar 17 successively mutually assembly install; Between tapered 20 and limit rod 11, be provided with slide block 22 and back-moving spring 23; Tapered 20 center, upper end, have the fixing hole of brute spring 19; Push rod 18 is plugged among the spring 19; Be provided with handle 3 in the upper end of push rod 18; Be provided with the teeth that are meshed with gear 21 at the two ends of locking bar 17; One end of key 4 leaves keyhole 5; Be provided with magnet and absorption metal in the contact site of key 4 and breach 8.

The utility model has overcome the deficiency of prior art, does not have traditional lock core hole, and the locking mechanism and the external world in the lock core are isolated fully, has thoroughly avoided the possibility with unlocked by universal key, has reached effect antitheft and simple in structure.

Description of drawings

Fig. 1 is the external form organigram of theft-preventing mechanical lock;

Fig. 2 is the key external form schematic diagram of theft-preventing mechanical lock;

Fig. 3 is the Facad structure schematic diagram of the lock core of theft-preventing mechanical lock example 1;

Fig. 4 is the lock core structure schematic diagram of theft-preventing mechanical lock example 1;

Fig. 5 is the lock core cross section structural representation of theft-preventing mechanical lock example 1;

Fig. 6 is the lock body internal construction schematic diagram of theft-preventing mechanical lock example 1;

Fig. 7 to Fig. 9 is that the utility model technology is used in three kinds of external form schematic diagrames on the padlock.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Theft-preventing mechanical lock example 1: in lock body 1, in plug body 12, key conveying device 7 is equipped with in locking mechanism the place ahead of lock core 2, have the breach 8 of setting-in key 4 on the key conveying device 7, movable key conveying device 7 is with key 4 input lock core correspondence positions, tongue and groove 6 on the locking mechanism 14 corresponding keys 4 of this moment on the fixed block 13, can make moving block 9 do wide-angle rotates, press swing handle 3 down, push rod 18 is pushed, this moment, spring 19 was to tapered 20 applied thrust, slide block 22 and limit rod 11 are pushed open to the right, simultaneously gear 21 is pushed with the teeth of locking bar 17 belows and be meshed, rotating push-rod 18 is promptly finished the action of opening the door.After unclamping handle 3, to extrapolation, gear 21 separates with the teeth of locking bar 17 belows back-moving spring 24 with gear 21 and circular cone 20, and back-moving spring 23 resets slide block 22 left.This moment is if take out key 4 or put into wrong key, because the moving block 9 on the lock core 2 can not rotate, limit rod 11 has limited slide block 22 and has slided to the right, even if at this moment press handle 3, also just spring 19 is compressed, and can not promote tapered 20 and gear 21, so, can not make on-off action even pressing handle 3 also is idle running.

Theft-preventing mechanical lock example 2: as Fig. 7, Fig. 8 is two kinds of different rotating disk modes; Fig. 9 is a kind of form of structure of push-down.

For further strengthening security performance of the present utility model, when implementing the scheme of rotating disc type, can be designed to the key conveying device can only unidirectional rotation or when turning to lockset position of coupler, must reverse rotation could take out key, to prevent to come fast back rotation, locking mechanism is impacted, when implementing the push rod scheme, can be designed to push rod and advance a half, must vertically be pressed into push rod and could continue to be advanced into lockset position of coupler, can prevent to press back and forth fast knob and push rod like this and cause influence locking mechanism.

Various embodiment of the present utility model can be used on gate, strongbox, automobile, the various of motorcycle and locks.

Claims (3)

1, its conveying device by lock body, locking bar, key, lock core, key of theft-preventing mechanical lock is formed, feature of the present utility model is that the locking mechanism front end at lock core (2) is equipped with key conveying device (7), have the breach (8) of setting-in key (4) on the key conveying device (7), key (4) is provided with tongue and groove (6), and its position is corresponding with the position that depth shape and fixed block (13) are gone up locking mechanism (14).

2, theft-preventing mechanical lock according to claim 1 is characterized in that leaving keyhole (5) at an end of key (4).

3, theft-preventing mechanical lock according to claim 1 is characterized in that being provided with magnet in the contact site of key (4) and breach (8) and adsorbing metal.

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