CN104948040A - Prying-resistant lock for automobile rear cover box - Google Patents

Abstract

The invention relates to an automobile lock, in particular to a prying-resistant lock for an automobile rear cover box. The prying-resistant lock for the automobile rear cover box is mainly composed of a lock seat, a lock cylinder, a telescopic rod and a damping positioning device. The prying-resistant lock for the automobile rear cover box is characterized in that the telescopic rod is connected with a cam-shaped rotating propeller at the tail end of the lock cylinder; the telescopic rod is arranged in the lock seat and abuts against the rotating propeller through a spring; one end of an outer circular ring of the lock cylinder is provided with a channel for allowing in and out of part of the telescopic rod; the damping positioning device is arranged between the lock seat and the lock cylinder; the lock seat is fixed to a trunk cover or an automobile body; the other end of the telescopic rod is clamped in a groove of an original automobile lock. When the lock cylinder is pried forcibly, due to the action of the damping positioning device, the lock cylinder and the outer circular ring do not rotate relatively due to the fact that a key is not consistent, the telescopic rod can only abuts against the outer circular ring part of the lock cylinder at that time, and the telescopic rod cannot come back to the channel of the outer circular ring of the lock cylinder, so that the telescopic also does not come back from the groove of the original automobile lock, and therefore the effects of prying resistant and protecting are achieved.

Description

Automotive back cover case pick-proof lock

Technical field

The present invention relates to a kind of automotive lock, particularly a kind of automotive back cover case pick-proof lock.

Background technology

Present automobile rear case lock mainly contains two kinds, a kind of can with key operated, another kind remote controller is opened, and these two kinds of structures are all that everybody is quotidian, and back cover case can be opened in real cars on hand by these two kinds of structures; We know, the people driven economic condition or reasonable comparatively speaking, oneself puts some valuables in car also often have, drive away the valuables in car all to be taken with oneself, owing to vehicle body being all glass, as long as car glass smashes by thief, the article in car will go adrift, and the safest position of this car has been exactly boot, so valuables are often placed in boot by car owner; But thief neither fool, in the boot that he also knows automobile, there are many valuables, so crime target has also been placed on the boot of automobile by they; Open boot and have good several method, for remote-controlled lock, this is the simplest, as long as thief provides a blocker for oneself, under car owner, remote controller for vehicle is at closing time by under signal intercept, and copying one again after having waited car owner to walk can unblank; For using the people of car key, be also fairly simple, as long as thief uses special violence unlocking tool, insert lock core and exert oneself one to turn round, lock will be unscrewed, and valuables will go adrift; Can also adopt the method smashing car glass in addition, will press the button of back-up case lock after car door opening again, boot just can be opened.So saying of making of public security department three Shen five, automobile trunk was not strongbox, and it has been customary for this also illustrates stolen property phenomenon in automobile trunk.

Summary of the invention

The object of the invention is to release a kind of automotive back cover case pick-proof lock, it is on the basis of original lockset, increase a lock again, and it can prevent automobile trunk from being occurred by the phenomenon of prizing effectively, makes this metal boot really play the effect of a strongbox.

Technical scheme of the present invention realizes in such a way:

The present invention is primarily of lock, lock core, expansion link, damping positioner composition, it is characterized in that: expansion link is connected with the cam-shaped rotatable propeller of lock core tail end, expansion link to be arranged on lock and by spring, itself and rotatable propeller to be offseted, one end of lock core outer toroid is provided with the passage for expansion rod part turnover, damping positioner is provided with between lock and lock core, lock is fixed on case cover or car body, and the other end of expansion link snaps in the groove of original lock.

The present invention compared with prior art has following feature: 1, do not affect original structure; 2, anti-theft effect is remarkable; 3, safety is very high; 4, production and processing is convenient.

Accompanying drawing explanation

Fig. 1 is the structure chart of the specific embodiment of the invention

Detailed description of the invention (the present embodiment does not have restriction to claim, is only a part for numerous embodiment)

Most preferred embodiment of the present invention as shown in Figure 1, the present invention forms primarily of lock 1, lock core 2, expansion link 3, damping positioner 4, it is characterized in that: expansion link 3 is connected with the cam-shaped rotatable propeller 5 of lock core 2 tail end, expansion link 3 to be arranged on lock 1 and by spring 6, itself and rotatable propeller 5 to be offseted, one end of lock core 2 outer toroid is provided with the passage 7 for the turnover of expansion link 3 part, damping positioner 4 is provided with between lock 1 and lock core 2, lock 1 is fixed on case cover or car body, and the other end of expansion link 3 snaps in the groove of original lock 8.During use, if there is no valuables in boot, the present invention can, boot originally uses according to original mode in the same old way, does not a bit affect; When being placed with valuables in boot, for the sake of assurance, the present invention locked with key, expansion link 3 just can snap in the groove of original lockset; Thief now prizes firmly with picklock, and lock core can follow violent tool with turning, but lock can not be opened.Its operating principle is: lock core is when damping positioner 4 is located, and its passage 7 is corresponding with expansion link 3, now rotates key and rotates, and expansion link can normal access way 7 under the drive of rotatable propeller, when lock core suffers firmly to prize, due to the effect of damping positioner 4, lock core 2 can not produce relative rotation because key does not conform between them with between outer toroid, at this moment lock core 2 just can turn with violent tool is same after overcoming damping resistance, although rotatable propeller 5 is offseted to become be separated gradually from starting position, although the groove exiting original lock wanted by expansion link 3 under the pushing of spring 6, but because lock core has turned over an angle, passage 7 in lock core 2 outer toroid has turned over an angle too, at this moment expansion link 3 can only prop up the outer toroid part of lock core 2, it has moved back less than in the passage 7 in lock core 2 outer toroid, so expansion link 3 also would not exit from the groove of original lock 8, thus play pick-proof protective effect.

Above-mentioned all embodiments of the present invention and all embodiments of not illustrating not in the above-described embodiments but in right, all in claims of the present invention.

Claims (1)

1. an automotive back cover case pick-proof lock, primarily of lock (1), lock core (2), expansion link (3), damping positioner (4) forms, it is characterized in that: expansion link (3) is connected with the cam-shaped rotatable propeller (5) of lock core (2) tail end, expansion link (3) is arranged on lock (1) and goes up and by spring (6), itself and rotatable propeller (5) offseted, one end of lock core (2) outer toroid is provided with the passage (7) for the turnover of expansion link (3) part, damping positioner (4) is provided with between lock (1) and lock core (2), lock (1) is fixed on case cover or car body, the other end of expansion link (3) snaps in the groove of original lock (8).