CN2446227Y - Double tapered end anti-theft lock - Google Patents

Abstract

The utility model discloses a theftproof lock with double lock heads. Two sets of lock heads 3, 5 are installed in a lock body, a lock bolt 1 and a sliding block are connected into a whole body, lock cores 4, 6 are respectively connected with a lock tongue, two lock tongues are convex shapes, and the lock tongues are respectively clamped in corresponding grooves of the sliding block. The lock bolt and the sliding block are connected through the sliding blocks which are engaged mutually, and the movement of the sliding blocks is subjected to the control of the two lock cores. Two sets of keys are needed to insert respectively in the two lock heads, and then, the rotation is carried out simultaneously and synchronously, the opening of the lock bolt can be operated, and that thieves and brigands commit a crime with the technicality measures of skeleton keys, etc. can be prevented. The special structure of the utility model is suitable for door locks, and is also suitable for the lockset of cycle locks, padlocks, etc.

Description

The theftproof lock of twin-lock head

The utility model relates to a kind of theftproof lock of twin-lock head, is fit to bicycle lock, lock for motorcycle, all kinds of door lock and padlock and adopts.

Existing bicycle lock, lock for motorcycle, all kinds of door lock and padlock are of a great variety, adapt to people's demand to update, more to newly arrive, and all kinds of locksets generally have the anti-function of pounding of rational in infrastructure and certain pick-proof.But exist weak point to be: all locksets all have only a tapered end, both as long as just lockset can be opened with a key, even people are for antitheft, and lockset is pinned bicycle with many, motorcycle or door, warehouse gate etc., but the robber can steal car or property be stolen in the same old way, it is main because the robber can use the instrument of master key and so on, just can bar none various locksets one be opened one overlapping one by one, for example roll the master key of work with the hairspring steel wire, master key with stalloy or silica gel making, and the instruments of making of two finer wires such as hook, so the tapered end of any lockset can both be opened with technical means by the robber, bring property loss even disaster to people's life, bring unsafe hidden danger to society.China Patent Office in the CN2152859Y of on January 12nd, 1994 bulletin Chinese utility model patent manual discloses a kind of " pick-proof dual fail-safe pellet shot from a slingshot plug-inserting lock; " the structure of this plug-inserting lock is two internal cylinder of insert on the locking bolt tube wall, with two dead bolts respectively with two stopper slot interlocks in front and back of locking bolt, need to turn two lock cylinders at the same time or separately and could open locking bolt, strengthened safety factor and improved the pick-proof performance than common plug-inserting lock with two keys.But the shortcoming of this structure is to prevent that the robber from using technological means cover unlocking tools such as master key, because though this structure adopts two tapered ends, but do not need to rotate synchronously simultaneously two key unlockings, available two keys one in front and one in back turn two lock cores respectively and unblank, after so the robber still can open a lock core with the master key cover earlier, block with sheet metal and not allow this lock core return, vacateing both hands again goes cover to open second lock core, therefore, the robber can adopt the method for defeating in detail with above-mentioned plug-inserting lock pirate of the open.

The purpose of this utility model is for overcoming the shortcoming of above-mentioned prior art, but provide a kind of theftproof lock of twin-lock head of preventing universal key unlatching, need be with two keys during use, and must the theftproof lock of twin-lock head could be opened by simultaneously synchronous screw key, this is that the robber is difficult to accomplish, and therefore reaches to prevent the purpose of robber with the crime of stealing tools such as master key cover unlocking tool.

For achieving the above object, the theftproof lock of twin-lock head of the present utility model comprises that two key kits, tapered end, dead bolt and a cover locking bolt are installed in the lock body jointly, and two cover tapered ends pin a cover locking bolt simultaneously, and two dead bolts are meshing with each other.

When the technical solution of the utility model was applied in door lock, two dead bolts were convex, by slide block up and down the spill of both sides mesh indirectly.

When the technical solution of the utility model is applied in bicycle lock, lock for motorcycle, two dead bolts wherein one be the head that is connected locking bolt, that two dead bolts adopt is protruding, groove directly meshes.

The technical solution of the utility model, when being applied in padlock, two dead bolts directly manufacture protruding, concave shape by the tail end of lock core, and directly mesh mutually.

Adopt the theftproof lock of twin-lock head, because two dead bolts of two tapered end operations directly mesh or engagement indirectly, the locking and the unlatching of common control locking bolt, the rigidity and the anti-ability of pounding of pick-proof of locking bolt have not only been strengthened, also need the rotation synchronously simultaneously of two key kits owing to open above-mentioned lockset, the robber can't be overlapped out tapered end one by one with instruments such as master keys, even two instrument one people such as robber's each personal master key of while overlap a tapered end, just in case wherein a people just in time overlaps all pellets shot from a slingshot of the tapered end in the hand concordant, when making this tapered end be in opening, but the himself but can't know, because of the dead bolt of this tapered end is firmly blocked by the dead bolt of another tapered end, can not rotate equally, such two robbers in all sorts of ways and overlap, can't know wherein which tapered end by chance quilt cover open, which tapered end is also

Fail quilt cover and open, so the probability that the theftproof lock quilt cover of twin-lock head is opened is extremely low, though adopt the structure of twin-lock to increase a little trouble to people, promptly need insert two key unlockings, the good anti-theft feature of lockset has brought guarantee then for people's property and personal safety.

In addition, adopt the safe-guard door lock or the padlock of the twin-lock head of said structure, can also play another important use, both increased by one group of twin-lock head, be used to appoint the above common responsible vital document cabinet of taking care of of two people or two people, safety cabinet, weapon cabinet, warehouse gate, prison door etc., one people administers two keys of the theftproof lock of a cover twin-lock head, must two people shows up simultaneously and can open the important door of above-mentioned kinds of relationships, cabinet etc. with four synchronous unlatchings of hands while.

Following structure accompanying drawing is described in further detail the specific embodiment of the present utility model.

Fig. 1 is that the theftproof lock of the utility model twin-lock head is applied in the front view on the door lock.

Fig. 2 is that the theftproof lock of the utility model twin-lock head is applied in the cut-away view on the door lock.

Fig. 3 is that the theftproof lock of the utility model twin-lock head is applied in the sectional view on bicycle lock or the lock for motorcycle.

Fig. 4 is that the theftproof lock of the utility model twin-lock head is applied in the sectional view on the padlock.

Fig. 1, the safe-guard door lock of the 2 twin-lock heads of adopting is by locking bolt 1, lock body 2, tapered end 3 and 5, lock core 4 and 6, dead bolt 8 and 11 is formed, by two tapered ends 3 and 5 or many tapered ends be installed in the upper and lower or the right and left of the homonymy of lock body 2 respectively, lock body 2 left side walls are provided with a passage, stretch out the hole of inserting on the other side's doorframe left for locking bolt 1 and finish blocking, two tapered ends 3 and 5 are fastenedly connected with two dead bolts 8 and 11 usefulness connecting pins 9 and 10 respectively, dead bolt 8 and 11 and convex, the slide block 7 that is connected with locking bolt 1 or manufactures an integral body then is provided with four spills, the a pair of spill in the right be for locking bolt 1 when the locking with on, the corresponding engagement of following dead bolt, the a pair of spill in the left side be for locking bolt 1 when opening with on, the corresponding engagement of following dead bolt, two dead bolts 8 and 11 four grooves engagements indirectly by slide block 7, have an elongated slot in the middle of the slide block 7, the central authorities of groove are provided with a guide finger 12, guide finger 12 is fixed on the lock body 2, leads when driving locking bolt 1 left and right sides translation for slide block 7.

When opening lock, two key kits are inserted two tapered ends respectively, with the hands simultaneously synchronous screw key with hand, slide block 7 is stirred to the right, driven locking bolt 1 and return in the lock body 2, continue screw key, make two convex dead bolts fall into the groove of slide block 7 lefts separately, extract key out, lock is opened and is finished.

During locking, with hand two key kits are inserted two tapered ends respectively equally, with the hands simultaneously synchronous screw key, slide block 7 is stirred to the left, promoted locking bolt 1 and stretch out, continue screw key, make two platform convex shape dead bolts fall into right-hand groove of slide block 7 separately again, extract key out, lock is finished.

The antitheft lock for motorcycle of twin-lock head shown in Figure 3 is by two tapered ends 3 and 5, two lock cores 4 and 6, two dead bolts 8 and 11 and one cover locking bolt 1, lock body 2 is formed, lock body 2 is the ∩ type, two tapered ends 3 and 5 are installed in the both sides of lock body 2 respectively, locking bolt 1 connects lock body 2 both sides when blocking, form a locking cavity, wheel is locked in the n type lock body 2, its structure is: lock body 2 right-hand members are provided with a short through hole, be provided with tapered end alignment pin 18 in the hole, effect is promptly can not rotate after movable tapered end 5 inserts short through hole, lock body 2 left ends are provided with a slotted hole, fixing tapered end 3 is installed in the inner end after, use straight pin 14 fastening again, there is a small through hole left side of slotted hole, in order that allow key 13 can insert tapered end 3 work, the right-hand member of slotted hole is with lining 16 of straight pin 15 fastening installations, in be provided with dead bolt alignment pin 17.Bolt pieces connects into an independently member by the tapered end 5 of activity by connecting pin 10 and locking bolt 1, the periphery of tapered end 5 is provided with groove always, in order that allow tapered end alignment pin 18 insert groove tapered end 5 can not be rotated, locking bolt 1 head that is connected with tapered end 5 is a dead bolt 11, be provided with a crisscross groove in its periphery, cooperate with dead bolt alignment pin 17, the closure and the unlatching of control locking bolt 1, top end face at dead bolt 11 has a groove, with the boss engagement of the dead bolt 8 of tapered end 3 control that is fixed on long through-hole, this tapered end 3 connects into an individual member by connecting pin 9 and dead bolt 8.

When opening lock, can't the turn lock core if only insert a key, because of its dead bolt is blocked by the another dead bolt, therefore need use two key kits are inserted two tapered ends respectively, with the hands simultaneously synchronous screw key, certainly, as long as two tapered ends have all inserted key, also available singlehanded rotation one side's key, the opposing party's lock core also can rotate thereupon, when key rotates to opening angle, after the horizontal groove of dead bolt 11 revolved dead bolt alignment pin 17, this pin had just been aimed at vertical groove, dials and takes out key 19, the individual member that drives tapered end 5 and locking bolt 1 composition withdraws from, and lock is promptly opened.

During locking, insert key 13 rotary locking cylinders 4 earlier, make dead bolt 8 rest on the enable possition, insert the individual member of being made up of tapered end 5 and locking bolt 1 then, the vertical groove of dead bolt 11 peripheries enters dead bolt alignment pin 17; The groove of dead bolt 11 top end faces enters the boss of dead bolt 8, screw key again, and the horizontal groove that drives dead bolt 11 peripheries enters dead bolt alignment pin 17, and dead bolt 11 promptly is stuck, and extracts two keys, locking bolt 1 so can not withdraw from, the locking process is finished.

The theft proof padlock of twin-lock head shown in Figure 4 is made up of two lock cores 4 and 6 and one cover locking bolt 1, lock body 2, locking bolt 1 is the ∩ type, two lock cores 4 and 6 are fixedly mounted on the both sides of lock body 2 respectively, two dead bolts 8 and 11 are directly made by the tail end of two lock cores 4 and 6 and are formed, dead bolt 8 is a boss, dead bolt 11 is a groove, and two dead bolts directly mesh.∩ type locking bolt 1 bipod when blocking all enters lock body 2, utilizes the cavity of ∩ type locking bolt 1 to pin object or utilize locking bolt 1 itself to pass the hole of two objects with both lockings.Its structure is: ∩ type locking bolt 1 two ends are a long pin and a short pin, the short pin on the right can detach lock body 2 after lock is opened, the below of the long pin on the left side is provided with a breach, when blocking, snap in its breach for lock core 4, lock core 4 sides are provided with a breach in the opening angle position, and the long pin that supplies locking bolt 1 is to up.

When opening lock, with hand two key kits 13 and 19 are inserted two lock cores 4 and 6 respectively, singlehanded either party key of rotation all can drive two lock cores 4 and 6 and rotate synchronously, when rotating to the opening angle position, the breach correspondence of lock core 4 the long pin of locking bolt 1, locking bolt 1 can be to up, the short pin on the right of ∩ type locking bolt 1 withdraws from lock body 2, and rotatable 360 °, lock is promptly opened.

During locking, the short pin of ∩ type locking bolt 1 is pressed into lock body 2 after, one hand back rotates either party key, the breach of lock core 4 is revolved in the past, and snap in the breach of the long pin in locking bolt 1 left side, locking bolt 1 is blocked by lock core 4 with cylindrical, whole ∩ type locking bolt 1 can not reach the purpose of locking to up.

Certainly; except above-mentioned three embodiment; the theftproof lock of twin-lock head also can be applicable to Steel wire rope lock; chain lock; automobile steering lock; automobile variable speed is handled lever lock; automobile door locks etc. are locked with safety cabinet; archive files cabinet lock; weapon cabinet lock; the warehouse door lock; the national treasury door lock; the lock of Electric cabinet lock and various uses; equally; the locking bolt that the twin-lock head is handled not only is confined to mechanism's locking; locking bolt or dead bolt also can be used to trigger electric switch; the important button of start-up circuit and various military uses; in addition; also password is adopted in conversion or conversion simultaneously separately for two or many tapered ends; the button number; all kinds of tapered ends such as magnetic, all above-mentioned substituting; conversion all drops within the protection domain of the present utility model.

Claims (4)

1, a kind of theftproof lock of twin-lock head, comprise that two key kits (13) (19), tapered end (3) (5), dead bolt (8) (11) and a cover locking bolt (1) are installed in the lock body (2) jointly, two cover tapered ends (3) (5) pin a cover locking bolt (1) simultaneously, and it is characterized in that: described two dead bolts (8) (11) are meshing with each other.

2, the theftproof lock of twin-lock head according to claim 1 is characterized in that: described two dead bolts (8) (11) are convex, by slide block (7) up and down the spill of both sides mesh indirectly.

3, the theftproof lock of twin-lock head according to claim 1 is characterized in that: described two dead bolts (8) (11) wherein one be the head that is connected locking bolt (1), that two dead bolts (8) (11) adopt is protruding, groove directly meshes.

4, the theftproof lock of twin-lock head according to claim 1 is characterized in that: described two dead bolts (8) (11) are that the tail end by lock core (4) (6) directly manufactures protruding, concave shape, and directly mesh mutually.

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