CN2849055Y

CN2849055Y - Composite antitheft lock

Info

Publication number: CN2849055Y
Application number: CN 200520098866
Authority: CN
Inventors: 龚毅
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-18
Filing date: 2005-11-18
Publication date: 2006-12-20
Anticipated expiration: 2015-11-18

Abstract

The utility model relates to a composite theft-proof lockset. The aim of the utility model is to provide a lockset which can avoid being unlocked by unconventional keys. The utility model relates to a composite theft-proof lockset which is composed of an inner lock core, an outer lock core, a lock tongue, etc. The utility model is characterized in that the inner lock core is a two-section structure or a multi-section structure which can be respectively rotated. The outer layer of the front section or the back section of the inner lock core of the utility model can also be additionally provided with a round metal sleeve. The round metal sleeve is positioned between the inner lock core and the outer lock core, and can be mutually rotated with the inner and the outer lock cores. The utility model has simple structure, and can avoid exerting a rotary force on a lock hole, making the inner lock core and the outer lock core produce a certain amount of displacement, an upper poked marble not being sprung back into a marble hole of the original lock cores after a thief uses the tools of steel wires, etc., to extend into the lock cores and poke the marble, and the phenomenon of losing the locking effect happening.

Description

A kind of compound lock

Technical field:

A kind of compound lock of the utility model relates to a kind of lockset.

Background technology:

Existing traditional lockset safety is low, and the common master worker that unblanks makes inner key cylinder and exterior key cylinder generation certain displacement amount by lockhole being applied a revolving force, re-uses instrument such as steel wire and stretches into lock core and stir pellet shot from a slingshot.Because inner key cylinder and exterior key cylinder have certain displacement, pellet shot from a slingshot is by in the pellet shot from a slingshot hole of the original inner key cylinder that can not be rebounded after having dialled, lose the effect of locking, stir pellet shot from a slingshot in the inner key cylinder repeatedly by instrument, when all last pellets shot from a slingshot are all dialled pellet shot from a slingshot hole from inner key cylinder, inner core can rotate, and makes the displacement of the relative rotation with outer core of inner core less than 90 degree.Use other instrument filling inner key cylinder and rotation lock inner core just to reach the purpose of unblanking.The skilled master worker that unblanks can open common lockset in this way in 10 minutes.

Summary of the invention:

The purpose of a kind of compound lock of the utility model is to propose a kind of lockset of being opened by unconventional key avoided.A kind of compound lock of the utility model is to be made of inner key cylinder, exterior key cylinder, dead bolt etc., it is characterized in that described inner key cylinder is two sections or multi-segment structure, can rotate respectively, and described rear end inner key cylinder connects the transmission of dead bolt finger.When running into unconventional unblanking, by lockhole being applied a revolving force, can make leading portion inner key cylinder and exterior key cylinder produce the certain displacement amount, but the rear end inner key cylinder there is not Influence of Displacement, stir the pellet shot from a slingshot of rear end inner key cylinder with instrument after, pellet shot from a slingshot still rebounds in the internal cylinder pellet shot from a slingshot hole, if stretch into inner key cylinder front and back section inner key cylinder is applied a revolving force together, because the slit is very little in the keyhole, there is not the space tool using to stir pellet shot from a slingshot, avoided lockhole is applied a revolving force, made inner key cylinder and exterior key cylinder produce the certain displacement amount, re-used instrument such as steel wire and stretch into the unconventional lock mode of opening that inner key cylinder is stirred pellet shot from a slingshot.The utility model can also add a round metal cover at the leading portion of inner key cylinder or the skin of back segment, described round metal cover thickness in 0.5 millimeter for well, described round metal is overlapped between inner key cylinder and exterior key cylinder and with both and can be rotated mutually, described circle cover leave with lock in, the pellet shot from a slingshot hole that outer core position matches, make pellet shot from a slingshot and spring by running through in the whole lock core at the round metal cover, be arranged so that by what the round metal between inner key cylinder and exterior key cylinder was overlapped the master worker that unblanks is by after applying a revolving force to lockhole, inner key cylinder and round metal cover produce displacement, and the neck of pellet shot from a slingshot is stuck between inner key cylinder and the round metal cover or locking between exterior key cylinder and the round metal cover when pellet shot from a slingshot has been dialled to neck.Last pellet shot from a slingshot can not be dialled back in the exterior key cylinder fully, and a kind of compound lock of the utility model is simple in structure, can avoid lockhole is applied a revolving force, makes inner key cylinder and exterior key cylinder produce the certain displacement amount, re-uses instrument such as steel wire and stretches into lock core and stir pellet shot from a slingshot.Last pellet shot from a slingshot can not be rebounded after having dialled in the pellet shot from a slingshot hole of original inner key cylinder, loses the phenomenon generation of locking action.

Description of drawings:

Fig. 1 is the inner key cylinder structural representation of a kind of compound lock of the utility model.

Fig. 2 is a kind of compound lock lock core schematic partial cross-sectional view of the utility model.

Fig. 3 is a kind of compound lock inner key cylinder segmentation place schematic cross-section of the utility model.

The specific embodiment:

According to shown in Figure 1, a kind of compound lock of the utility model is to be made of inner key cylinder, exterior key cylinder etc., and inner key cylinder is a two-stage structure 1,2, can rotate respectively, and described rear end inner key cylinder 2 connects the transmission of dead bolt finger.The skin of described inner key cylinder 1 leading portion has added a round metal cover 3, described round metal cover 3 can rotate between inner key cylinder 1 and exterior key cylinder and with both mutually, described circle cover 3 leave with lock in, the pellet shot from a slingshot hole 4 that outer core position matches, pellet shot from a slingshot is run through in the whole lock core marble hole 5 by the round metal cover, the utility model can overlap in round metal and be provided with one on 3 and run through cross-drilled hole 6, described inner key cylinder 1 has a projection 7 corresponding to running through the cross-drilled hole position, described protruding 7 height is not higher than the thickness of round metal cover 3, the pitch-row that runs through cross-drilled hole 6 of described round metal cover 3 is not more than the diameter that protruding 7 diameters add pellet shot from a slingshot, and pitch-row approximates protruding 7 diameters and adds 1/2 billiards diameter for well.Avoided the dislocation distance of round metal cover and inner key cylinder to surpass a billiards diameter like this; Return after making things convenient for inner key cylinder to be rotated does not influence normal use.

When preventing that foreign matter from unblanking on inner key cylinder boring fixedly foreign matter as pivot point, as shown in Figure 1, the utility model adds one and the corresponding steel disc 12 of keyhole after can cutting off near the pellet shot from a slingshot place at the leading portion 1 of inner key cylinder again, the inner end of described steel disc 12 boring riveted joint inner key cylinders, steel disc is rotated with the rear end inner key cylinder, and the inner key cylinder of front end can freely rotate.Described steel plate thickness is no more than 0.5 centimetre for well.In the time of so also can avoiding unblanking, to inner key cylinder boring, the application of force fulcrum that obtains rotating with foreign matter.

According to Fig. 1, shown in Figure 2, the utility model can also be established a groove 8 at the skin of described inner key cylinder 1, with the circle cover and the exterior key cylinder of groove 8 opposite positions a through hole 9 is arranged, 9 fix a spring 10 in the hole of exterior key cylinder 15, described spring 10 is pushed down ball 11 in the hole of circle cover, and described ball 11 is unsettled in groove 8 relatively.When the front end to inner key cylinder of unblanking with foreign matter applies a revolving force, because ball 11 is subjected to being fixed on the pressure of exterior key cylinder spring 10 in the circle cover, so can not rotate synchronously with inner key cylinder, easier inner key cylinder and the round metal cover 3 that occurs produces displacements, makes that having been dialled the back neck at pellet shot from a slingshot is stuck in inner key cylinder and round metal and locks between overlapping.Round metal cover is stressed to overcome exterior key cylinder displacement relatively behind the bed knife of spring, can cause the neck of pellet shot from a slingshot to be stuck between round metal cover and the exterior key cylinder simultaneously and lock.

According to shown in Figure 3, after the utility model is rotated for fear of the leading portion lock core, uneven or the two-phase lock hole anisotropy of lockhole, use key can't insert the phenomenon that maybe can't open, a spacing ball 13 and one corresponding groove 14 with it can be set on the connection end face of front and back internal cylinder 1,2, and the central angle of described groove 14 is not more than 45 degree, makes when the leading portion inner key cylinder is rotated by external force, rotation amplitude is not more than 45 degree, and rotation amplitude 45 degree effects are best.Make the front and back end inner key cylinder displacement longitudinally all be arranged owing to can vertically form tension force to inner key cylinder when ball turns to the groove limit with respect to exterior key cylinder and round metal cover, pellet shot from a slingshot hole between exterior key cylinder, round metal cover, the inner key cylinder forms dislocation, makes things convenient for pellet shot from a slingshot to be stuck.Also play antitheft effect.

The utility model is arranged so that the master worker that unblanks by after lockhole being applied a revolving force by the cover of the round metal between inner key cylinder and exterior key cylinder, and inner key cylinder and round metal cover produce displacement, are stuck in locking between inner key cylinder and the round metal cover after pellet shot from a slingshot has been dialled.Be stuck between inner key cylinder and the round metal cover for the ease of pellet shot from a slingshot, improve the safety factor of theftproof lock, the inside and outside core pellet shot from a slingshot of this compound lock can adopt the neck billiards structure, is characterized in that the head of the part neck pellet shot from a slingshot that internal cylinder is used is triangle.When unconventional unblanking and to behind revolving force of inner key cylinder, form a displacement between inner core and the outer core, when scratching out the pellet shot from a slingshot of stirring inner core with steel wire, the neck of neck pellet shot from a slingshot up and down is stuck easily, if the head of the neck pellet shot from a slingshot of inner key cylinder is a triangular structure, neck is stuck its head with regard to being easy to enter exterior key cylinder so, has improved antitheft effect.Make things convenient for the pellet shot from a slingshot neck to be stuck between inner key cylinder and the round metal cover, or be stuck between exterior key cylinder and the round metal cover; Because the key ratio of precision tack pellet shot from a slingshot that triangular head causes is poor, so adopt this pellet shot from a slingshot on a small quantity.

Claims

1, a kind of compound lock is to be made of inner key cylinder, exterior key cylinder etc., it is characterized in that described inner key cylinder is two sections or multi-segment structure, can rotate respectively, and described rear end inner key cylinder connects the transmission of dead bolt finger.

2, according to the described a kind of compound lock of claim 1, the skin that it is characterized in that described inner key cylinder leading portion or back segment has added a round metal cover, described round metal is overlapped between inner key cylinder and exterior key cylinder and with both and can be rotated mutually, described circle cover leaves and locks the pellet shot from a slingshot hole that inside and outside core position matches, and pellet shot from a slingshot is run through in the whole lock core marble hole by the round metal cover.

3, according to the described a kind of compound lock of claim 2, it is characterized in that on the connection end face of front and back internal cylinder, being provided with a spacing ball and one corresponding groove with it, the central angle of described groove is not more than 45 degree.

4, according to the described a kind of compound lock of claim 2, it is characterized in that and to establish a groove at the skin of described inner key cylinder, with the circle cover and the exterior key cylinder of groove opposite position a through hole is arranged, fix a spring in the hole of exterior key cylinder, described spring is pushed down ball in the hole of circle cover.

5, according to the described a kind of compound lock of claim 2, it is characterized in that to put in round metal and be provided with one and run through cross-drilled hole, described inner key cylinder has a projection corresponding to running through the cross-drilled hole position, the height of described projection is not higher than the thickness of round metal cover, and the pitch-row that runs through cross-drilled hole of described round metal cover is not more than the diameter that projection diameter adds pellet shot from a slingshot.

6,, it is characterized in that to add a steel disc more described steel disc boring riveted joint inner key cylinder at the front end of inner key cylinder according to the described a kind of compound lock of claim 1.

7,, it is characterized in that it is leg-of-mutton neck pellet shot from a slingshot that inner key cylinder can use head according to the described a kind of compound lock of claim 1.