CN2338420Y

CN2338420Y - Puzzle lock for drawer

Info

Publication number: CN2338420Y
Application number: CN 98204196
Authority: CN
Inventors: 温美堂
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-05-08
Filing date: 1998-05-08
Publication date: 1999-09-15
Anticipated expiration: 2008-05-08

Abstract

The utility model relates to a puzzle lock for a drawer, which is mainly composed of a lock body, a turn knob, a button, a clamping plate, a gear ring, and a driving wheel lock tongue. The n clamping plates are distributed among the teeth of the gear ring and are arranged in a sector in the lock body, which can realize the 1 /2 <n> of weight rate. The turn knob is used for decoding, and the button is used for inputting a structure. A key does not used, and the lock is convenient to open. As the shape and the size of the puzzle lock for a drawer are totally similar to a marble drawer lock which is widely used, installation is no difference, and manufacture cost is not increased more. The puzzle lock for a drawer has the advantages that the puzzle can be changed can not be decoded by hand feeling, and the security of the puzzle lock for a drawer is high. The utility model can also be widely used for file cabinets, letter and newspaper boxes, the doors, cabinets, and closets of different furniture, etc.

Description

The password drawer-lock

The utility model relates to a kind of password drawer-lock.

The existing mechanical coded lock is different according to the frame for movement difformity, generally only limits to room door safety cabinet etc. and locates to use, and small-sized thumb wheel coded lock is applicable to case and bag.China utility model patent 9421748.x discloses a kind of variable cipher key type coded lock, mainly by button, knob, eccentric wheel, guide wheel, iron bar and locking bolt, change a yard heart, change a yard button and form, can not add dismounting and just can change password, but volume is bigger, inapplicable drawer-lock.

The purpose of this utility model provides a kind of outer appearance pellet shot from a slingshot drawer-lock, exceeds the mechanical code lock that increases cost of manufacture again.Be convenient to install, password can be changed, and can't decode with feel, and strong security exempts to use key, and switch lock is lockset easily.

The purpose of this utility model can mainly include lock body, dead bolt, knob, button, clamp, gear ring thumb wheel by realizing designing and producing a kind of password drawer-lock by the following technical solutions.The password input area that the knob of lock body assembling can be divided between a week and unblank to distinguish interior rotation.Be equipped with thumb wheel on the axle head of knob, thumb wheel protrudes an eccentric little axle, can stir dead bolt and move.The side afterbody of dead bolt protrudes a little axle, is stuck in the hole of gear ring eccentric position, and moving of dead bolt depends on that can gear ring rotate.

The interior one-tenth of the between cog fan-shaped array that interior n the clamp of lock body is distributed in gear ring can realize that the repetition rate of coding is 2 n power/one.All there is the firm breach that can allow gear ring pass through the clamp both sides, and the position is interlaced, and clamp can be installed positive and negative.Front-installed clamp, its breach and gear ring place are in one plane.The clamp that reverse side is packed into, stagger in the plane of its breach and gear ring.Utilize the positive and negative installation of clamp to rearrange password.The eccentric part of knob is provided with a button, clamp can be moved vertically.By moving the breach of all clamps and gear ring all are on the plane, gear ring can rotate and unblank.

Respectively there are two corresponding triangle gap the clamp both sides, are positioned on the jump ring when mobile vertically.

The eccentric part of thumb wheel also has an outstanding vertically triangular bump, and thumb wheel is when clockwise rotating, and triangular bump always is in before the button, and the clamp of pressing is not reset, and the clamp that is moved can be pushed up back original position when rotating counterclockwise.When knob forwarded to counterclockwise, all clamps all resetted.

The bar shaped projection that oriented axis direction stretches out in the middle of the dead bolt, when knob rotated in the password input area, the breach of thumb wheel and the projection of dead bolt staggered, and stoped dead bolt to move, and prevented limit input password, and the limit is stirred dead bolt and is broken a code.When unblanking, the projection of dead bolt just inserts in the thumb wheel of leaving certain gaps uncovered by the economic plan.

Be provided with one at the eccentric part of lock body and bump pearl, under the effect of spring, withstand in the evenly distributed shrinkage pool of knob bottom one circle.Knob can accurately be located with feel to sign indicating number the time.

The drawing of accompanying drawing is described as follows:

Fig. 1 is the outside drawing of the utility model password drawer-lock.

Fig. 2 is the sectional drawing of described utility model password drawer-lock.

Fig. 3 is that described utility model password drawer-lock is at gear ring place sectional schematic diagram.

Fig. 4 is that described utility model password drawer-lock is at thumb wheel place sectional schematic diagram.

Be further described below in conjunction with reaching embodiment shown in the accompanying drawing.

The utility model password drawer-lock as shown in Figure 1, is outside drawing.Lock body (1) adopts cylinder mode, makes the installation of password drawer-lock the same convenient with former pellet shot from a slingshot drawer-lock.Lock body (1) is equipped with to indicate above the knob (2) and checks numbers, and the groove (12) on the subtend lock body (1) is selected password respectively, and knob (2) is provided with button (3), input password in order, import correctly when password, knob just can be rotated further, and stirs dead bolt (4) and unblanks.The tapered end circle (11) that is enclosed within on the lock body (1) is a decoration ring.

Fig. 2 is the sectional drawing of described utility model password drawer-lock.Clamp (6) both sides that are assemblied in the lock body (1) respectively have a position interlaced, the breach that just can allow the tooth of gear ring (7) pass through, and clamp (6) can be installed positive and negative, and when front-installed, its breach and gear ring (7) are located in one plane.When reverse side is packed into, stagger in the plane of its breach and gear ring (7), and the difference of utilizing clamp (6) positive and negative to install rearranges password.The eccentric part of knob (2) is provided with a button (3), clamp (6) can be moved vertically.By moving breach of all clamps (6) and gear ring (7) all are on the plane, gear ring (7) can rotate.Also respectively there are two corresponding triangle gap clamp (6) both sides, be stuck in jump ring (10) and go up the location when mobile vertically.

The eccentric part of thumb wheel also has an outstanding vertically triangular bump (24), and thumb wheel (9) is when clockwise rotating, and the position of triangular bump (24) always is in button (3) before, and the clamp of pressing (6) is not reset.When rotating counterclockwise, the clamp (6) that is moved can be pushed up back original position.When knob (2) forwarded to counterclockwise, clamp (6) all resetted.

Be equipped with one at the eccentric part of lock body (1) and bump pearl (15), withstanding on knob (2) bottom surface under the effect of spring has in the evenly distributed shrinkage pool of a circle.Knob (2) can accurately be located with feel to sign indicating number the time.

Fig. 3 is that described utility model password drawer-lock is at gear ring place sectional schematic diagram.The interior one-tenth of the between cog fan-shaped array that interior 10 clamps of lock body (1) (6) are distributed in gear ring (7) can realize that heavily rate is 1/1024th.When the breach of all clamps (6) and gear ring (7) all in one plane the time, gear ring (7) can rotate.The side afterbody of dead bolt (4) protrudes a little axle (22), is stuck in the eccentric orfice of gear ring (7), and can the mobile gear ring (7) that depends on of dead bolt (4) rotate.

Fig. 4 is that described utility model password drawer-lock is at thumb wheel place sectional schematic diagram.Drive thumb wheel (9) during knob (2) rotation, thumb wheel (9) protrudes an eccentric little axle (23) can stir the gap that the side afterbody of dead bolt (4) has, and makes moving of dead bolt.Can the mobile gear ring (7) that depends on of dead bolt (4) rotate.A bar shaped projection (21) is stretched out in oriented axle center in the middle of the dead bolt (4), when knob (2) rotates in the password input area, the bar shaped projection (21) of the breach of thumb wheel (9) and dead bolt (4) staggers, and stops dead bolt (4) to move, in case utilize the input password to stir unblanking that dead bolt (4) breaks a code simultaneously.Only when unblanking, the bar shaped projection (21) of dead bolt (4) just inserts in the breach (25) of thumb wheel.

Claims

1, a kind of password drawer-lock, mainly comprise lock body (1), knob (2), button (3), dead bolt (4), clamp (6), gear ring (7), thumb wheel (9), it is characterized in that in the lock body (1) that the between cog that is distributed in gear ring (7) by n clamp (6) is fan-shaped array, its feature is that also the both sides intervening portion of clamp (6) respectively has the breach that a tooth that can allow gear ring (7) passes through, clamp (6) can move vertically, and clamp (6) can be installed by positive and negative.

2, password drawer-lock according to claim 1 is characterized in that also respectively there are two corresponding triangle gap clamp (6) both sides, can be stuck in jump ring (10) and go up the location when mobile vertically.

3, password drawer-lock according to claim 1 is characterized in that knob (2) eccentric part, and a button (3) is arranged, and the clamp (6) of fan-shaped array can be moved vertically.

4, password drawer-lock according to claim 1 is characterized in that being fixed on the thumb wheel (9) on knob (2) axle head, and its eccentric part has a triangular bump (24), the clamp (6) that is moved can be pushed up back original position when rotating counterclockwise.Its feature is that also thumb wheel (9) has an eccentric little axle (23), can stir dead bolt (4) and move.

5, password drawer-lock according to claim 1 is characterized in that the side afterbody of dead bolt (4) has a little axle (22), is stuck in the eccentric orfice of gear ring (7).Its feature also is a bar shaped projection (21) is arranged in the middle of the dead bolt (4), and when unblanking, bar shaped projection (21) just inserts in the breach (25) that thumb wheel (9) has.

6, password drawer-lock according to claim 1, its feature are that also being equipped with one on the lock body (1) bumps pearl (15), under the effect of spring, withstand on knob (2) bottom along in the shrinkage pool of circumferential arrangement.