CN200968103Y

CN200968103Y - Theft-proof lock

Info

Publication number: CN200968103Y
Application number: CN 200620109007
Authority: CN
Inventors: 华高飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-27
Filing date: 2006-10-27
Publication date: 2007-10-31
Anticipated expiration: 2016-10-27

Abstract

An anti-theft lock includes a lock shell, a lock core and an U-shaped lock ring, and the lock shell is provided with a horizontal run-through slot, inside which a lock pin that can slide relatively to the lock shell is arranged; the lock core includes an upper lock core and lower lock core, and the upper lock core and the lower lock core comprise a digital lock core group; the lower lock core is inside the decoding key hole, the upper lock core is arranged between the decoding key hole and the lock core trough under the locking state and is inside the lock core trough under the unlocked state, and the lower lock core under the unlocked state is inside the decoding key hole; two lock rods of the U-shaped lock ring are provided with a lock port, the two lock ports are in the same direction, and the head and tail of the lock pin separately are equipped with a lock button matching with the lock ports. The keys for the combined use include an unlocking push rod and decoding key, and the unlocking slots of the unlocking push rod and the lock pin match with each other; the digital lock cores of the utility model are mutually separate, and can not rotate when unlocking, providing difficult decoding and high-performance anti-pry. The lock has a small space and can withstand high-intensity beating.

Description

A kind of theftproof lock

(1) technical field

The utility model relates to a kind of theftproof lock.

(2) background technology

The most existing theftproof lock as long as the screw key mouth just can be pried open, with in-line or criss-cross instrument sled twistlock head, is easy to just can pry open lock.Though the key mouth is fixed, the equipment of unblanking be subjected to the be subjected to force intensity of force intensity greater than digital lock core, still can use energetically and untie.

The digital atom lock that the pick-proof performance is high slightly is an eccentric technology of having utilized the key mouth, and common padlock remover is prized not opened, and the white steel key and the sled handle that still utilize the centering technology to add the E font are had an effect, and still can easily pry open.

(3) summary of the invention

In order to overcome the deficiency that theftproof lock is easily pried open in the prior art, the utility model provides a kind of anti-decoding, pick-proof, the anti-high-performance theftproof lock that strikes.

The technical scheme in the invention for solving the technical problem is: a kind of theftproof lock, comprise lock housing, lock core and U-shaped retainer, and described lock housing has horizontal through slot, is provided with in the described through slot with respect to lock housing lock pin slidably;

Described lock core comprises upper lock core that several are different in size and following lock core different in size, and described upper lock core matches mutually with following lock core, and described lock core down is the concentric reducer lock core with reversal of the natural order of things boss, and upper lock core and following lock core are formed digital lock core group;

The upper surface of described lock housing offers lock core and enters the hole, the soffit of described lock housing offers the decoding keyhole, lock core enters the hole and the decoding keyhole is located along the same line, the bottom of decoding keyhole inwall is provided with the support rim that matches with the reversal of the natural order of things boss of following lock core, following lock core is positioned at the decoding keyhole, and this time lock core hang on the support rim by the reversal of the natural order of things boss;

Offer lock core groove on the described lock pin, Open Side Down and suitable with described decoding keyhole for described lock core groove, described upper lock core is positioned at the described top of lock core down, the upper end of upper lock core is connected with the upper end inwall of lock core groove by stage clip, upper lock core under the locking state is between described decoding keyhole and lock core groove, upper lock core under the released state is positioned at described lock core groove, and the following lock core under the released state is positioned at described decoding keyhole;

Offer on the described lock pin and separate locked groove, offer unlock hole on the bottom surface of described lock housing, described to separate locked groove corresponding with the position of unlock hole to keep both perforations;

The head of described lock housing and afterbody all offer the slot for the left locking bar of U-shaped retainer and the insertion of right locking bar, all offer fore shaft on two locking bars of described U-shaped retainer, two fore shafts have identical towards, the head of described lock pin and portion are equipped with and the suitable snap close that closes of described fore shaft, snap close buckles into the degree of depth of fore shaft for eating the lock degree of depth, and the width of the unlock hole on the lock housing bottom surface is more than or equal to eating the lock degree of depth.

Further, the head of described lock pin has step, offers lockhole on the described step, and the width of described lockhole is more than or equal to the width of left locking bar, described lockhole and described slot are formed the mortise lock passage, and the lock pin in lockhole the place ahead partly constitutes the preceding snap close that cooperates with the left locking bar of U-shaped retainer;

The afterbody of described lock pin has the projection of evagination, and described projection constitutes the rear catch that cooperates with the right locking bar of U-shaped retainer.

Further, the filling of the two ends of described lock housing has sprue.

The key that uses that matches with above-mentioned theftproof lock comprises unblank push rod and decoding key, on described unblank push rod and the described lock pin to separate locked groove suitable; Described decoding key comprises key body, and described key body is provided with a row and the suitable decoding tooth of digital lock core group.

Unlock method is as follows: the key of will decoding inserts the decoding keyhole, under the effect of decoding key, following lock core is pushed into, and following lock core advances upper lock core again, and the decoding key is suitable with digital lock core group, upper lock core can be pushed up to the lock core groove of lock pin after promptly inserting the decoding key, and lock core still is positioned at the decoding keyhole down, at this moment just can stir the push rod of unblanking, and makes snap close break away from fore shaft, locking bar can be extracted, finish release.Last locking method is as follows: locking bar is inserted in the slot of lock housing, stir the push rod of unblanking again, make snap close and fore shaft be interlocked, extract the decoding key, under the effect of stage clip, upper lock core and following lock core reset, and finish and lock.

The beneficial effects of the utility model are: digital lock core is independent separately, and not rotatable in the time of release, the decoding difficulty is big, pick-proof performance height.The space is little in the lock, can bear high-intensity beaing.

(4) description of drawings

Fig. 1 is a sectional view of the present utility model under the locking state.

Fig. 2 is a sectional view of the present utility model under the released state.

Fig. 3 is the figure that cooperates of locking bar and lock pin under the locking state.

Fig. 4 is the stereogram of lock housing.

Fig. 5 is the stereogram of lock housing.

Fig. 6 is the stereogram of lock pin.

Fig. 7 is the stereogram of lock pin.

Fig. 8 is the structural representation of following lock core.

Fig. 9 is the partial enlarged drawing of decoding keyhole.

Figure 10 is the figure that cooperates of locking bar and lock pin under the locking state.

(5) specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

With reference to Fig. 1,2,3,4,5,6,7,8,9, a kind of theftproof lock, comprise lock housing 1, lock core and U-shaped retainer 2, lock housing 1 has horizontal through slot, the two ends filling of described lock housing 1 has sprue 3, sprue 3 can reduce space in the lock, strengthens the anti-ability of knocking of lock, can seal the lock housing two ends again, improve the pick-proof performance.Be provided with in the through slot of lock housing 1 with respect to lock housing 1 lock pin 4 slidably.

Described lock core comprises several upper lock cores different in size 5 and following lock core 6 different in size, and upper lock core 5 matches mutually with following lock core 6, and described lock core 6 down is for having the concentric reducer lock core of reversal of the natural order of things boss 9, and upper lock core 5 and following lock core 6 are formed digital lock core group.

The upper surface of lock housing 1 offers lock core and enters hole 7, the soffit of lock housing 1 offers decoding keyhole 8, lock core enters hole 7 and decoding keyhole 8 is located along the same line, the bottom of decoding keyhole 8 inwalls is provided with the support rim 10 that matches with the reversal of the natural order of things boss 9 of following lock core, following lock core 6 is positioned at decoding keyhole 8, and this time lock core 6 hang on the support rim 10 by reversal of the natural order of things boss 9.Lock core advance hole 7 when assembling as under the installation passage of lock core 6, following lock core 6 enters hole 7 by lock core can be by dropping in the decoding keyhole 8 smoothly.

Offer lock core groove 11 on the lock pin 4 in the lock housing 1, Open Side Down and suitable with described decoding keyhole 8 for lock core groove 11, and described upper lock core 5 is positioned at the described top of lock core 6 down, and the upper end of upper lock core 5 is connected with the upper end inwall of lock core groove 11 by stage clip 12.Upper lock core 5 under the locking state is between decoding keyhole 8 and lock core groove 11, following lock core 6 under the locking state is positioned at decoding keyhole 8, upper lock core 5 under the released state is positioned at lock core groove 11, and the following lock core 6 under the released state still is positioned at decoding keyhole 8;

Also offer on the lock pin 4 and separate locked groove 13, offer unlock hole 14 on the bottom surface of described lock housing, described to separate locked groove 13 corresponding with the position of unlock hole 14 to keep both perforations.

The head of lock housing and afterbody all offer the slot 17 that inserts for the left locking bar 15 of U-shaped retainer and right locking bar 16, the left side of U-shaped retainer lock all offer on 15 bars and the right locking bar 16 18, two fore shafts 18 of fore shaft have identical towards.

The head of described lock pin 4 has step, offers lockhole 19 on the described step, and the width of described lockhole 19 equals the width of left locking bar 15, and described lock 19 holes and described slot 17 are formed the mortise lock passage.Certainly the width of lockhole 19 also can be greater than the width of left locking bar 15, as long as left locking bar 15 can insert.The lock pin in lockhole the place ahead partly constitutes the preceding snap close 20 that cooperates with left locking bar; The afterbody of described lock pin 4 has the projection of evagination, and described projection constitutes the rear catch 24 that cooperates with the right locking bar of U-shaped retainer.Before and after the snap close degree of depth that buckles into fore shaft for eating the lock degree of depth, the width of the unlock hole 14 on the lock housing bottom surface is more than or equal to eating the lock degree of depth, so that the front and back snap close can break away from fore shaft 18 during release.

The key that uses that matches with the utility model comprises unblank push rod 21 and decoding key 22, on described unblank push rod 21 and the described lock pin 4 to separate locked groove 13 suitable; Described decoding key 22 comprises key body, and described key body is provided with a row and the suitable decoding tooth 23 of digital lock core group.

Unlock method is as follows: the key 22 of will decoding inserts decoding keyhole 8, under the effect of decoding key 22, following lock core 6 is pushed into, following lock core 6 advances upper lock core 5 again, decoding key 22 is suitable with digital lock core group, upper lock core 5 can be pushed up to the lock core groove 11 of lock pin after promptly inserting decoding key 22, and lock core 6 still is positioned at decoding keyhole 8 down, it is upper lock core 5, the interface of following lock core 6 and lock housing 1, the interface of lock pin 4 is positioned at same plane, unblank push rod 21 and stir the push rod of unblanking of insertion, lock pin 4 moves thereupon, and snap close breaks away from fore shaft before and after making, the left and right sides locking bar of U-shaped retainer can be extracted, finish release.Last locking method is as follows: the left and right sides locking bar of U-shaped retainer is inserted in the slot of lock housing 1, stir the push rod 21 of unblanking again, snap close and fore shaft are interlocked before and after making, extract decoding key 22, and under the effect of stage clip 12, upper lock core 5 and following lock core 6 reset, and finish and lock.

In the present embodiment, preceding snap close has adopted different forms with rear catch.In fact, if the form of structure of snap close before the front and back snap close can adopt is shown in Figure 10.

Claims

1. a theftproof lock comprises lock housing, lock core and U-shaped retainer, and it is characterized in that: described lock housing has horizontal through slot, is provided with in the described through slot with respect to lock housing lock pin slidably;

2. theftproof lock as claimed in claim 1, it is characterized in that: the head of described lock pin has step, offer lockhole on the described step, the width of described lockhole is more than or equal to the width of left locking bar, described lockhole and described slot are formed the mortise lock passage, and the lock pin of power partly constitutes the preceding snap close that cooperates with the left locking bar of U-shaped retainer before the lockhole;

3. theftproof lock as claimed in claim 1 or 2 is characterized in that: the two ends filling of described lock housing has sprue.

4. key that matches with the described theftproof lock of claim 1 and to use is characterized in that: comprise unblank push rod and decoding key, on described unblank push rod and the described lock pin to separate locked groove suitable;

Described decoding key comprises key body, and described key body is provided with a row and the suitable decoding tooth of digital lock core group.