CN201187181Y

CN201187181Y - Tray body direct control mechanical theft-proof lock

Info

Publication number: CN201187181Y
Application number: CNU2007200436603U
Authority: CN
Inventors: 周邦炎
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-01
Filing date: 2008-10-01
Publication date: 2009-01-28
Anticipated expiration: 2018-10-01

Abstract

The utility model discloses a mechanical pickproof lock which is directly controlled by a disc body, in particular the mechanical pickproof lock, the lock tongue displacement of which is directly controlled by the disc body in the lock. Two or more variable diameter grooves (4) are formed on the disc body (2), a pulley (5) is respectively arranged in each groove, and a pulley spindle and a lock tongue (7) are fixed together, thereby impelling the pulley and the lock tongue to do the radial displacement along a sliding runner together when the disc body is rotated, while the displacement amount and the displacement direction are both decided by the rotating angle and the rotating direction of the disc body, and the lock tongue cannot do the active displacement, so that the lock can be opened and closed through the decision of the disc body.

Description

Disk body is directly controlled mechanical anti-theft lock

Affiliated technical field

The utility model relates to the device of a kind of direct control dead bolt folding, and especially the folding with lock directly places under the control of disk body.

Background technology

Known at present " mechanical anti-theft lock " is that key passes through the transmission device that parts such as lock core, shift fork, cam, connecting rod, spring are formed, and active force progressively is delivered on the dead bolt, promotes the dead bolt displacement.Its shortcoming is between each interior part of lock, lacks interlocked usefulness, and available improper program gets around lock core, can both promote the dead bolt displacement by arbitrary part, reaches the purpose of unlatching, thereby has reduced anti-theft effect.

Under the standard conditions that meet GA/T73-94 " Mechanical theft-proof door lock ", utilize kinematics in the machine-building, kinetic theory, with the mutual transforming principle of active force, the thrust that produces when disc is rotated is by the pulley in the arc reducing groove, change into radial thrust, promote the dead bolt displacement, and by angular dimension and direction that disc rotates, the shift length of directly controlling dead bolt is with flexible.

Summary of the invention

Common in the market safe-guard door lock, because of can not interlocking between each part in locking, the degree of freedom of leaving the dead bolt activity for be big, not according to normal procedure, also opens easily, and anti-theft feature is not good enough.

Technical solution adopted in the utility model is: in the process of transfer function power, design a disc that has arc reducing groove, by the pulley in the groove, directly control the flexible and flexible size of dead bolt.

Effect of the present utility model is: the direction of displacement of dead bolt and stroke thereof, decide by the direction of rotation and the rotational angle size thereof of disc.Disc is motionless, and dead bolt can not move, and reaches the purpose that improves anti-theft effect.

Description of drawings

Accompanying drawing 1 is the schematic diagram of movements that disk body is directly controlled mechanical anti-theft lock.

Accompanying drawing 2 is the fixed straight control structure figure of disc and tapered end.

Accompanying drawing 3 is the fixed straight control structure figure of disc and lock core.

1. lock cores among the figure, 2. disc, 3. lock body, 4. arc reducing groove, 5. pulley, 6. dead bolt slideway, 7. dead bolt, 8. tapered end.

Insert key, rotational lock head (8), the pulley (5) that allows disc (2) directly promote in the reducing groove (4) moves, because of pulley spindle and dead bolt (7) are fixed, pulley (5) can not rotate with disc (2), can only follow dead bolt (7) displacement together in groove, forms to open or close.

The specific embodiment

Disc directly be fixed on (see accompanying drawing 2) on the tapered end or lock core on (seeing accompanying drawing 3) disk reducing groove of being provided with two or more identical arcs and changing successively apart from the radius in the center of circle, be provided with a pulley that in groove, slides only in the groove, the axle of pulley is fixed on the dead bolt, dead bolt is located in the slideway, and slideway is radially to be fixed on one's body the lock.

The operation program of lock is: insert the key that is complementary, and rotational lock head or lock core, disc rotates thereupon, by pulley in the moving groove of the reducing troughed belt on the disc, promote the dead bolt displacement down the synthetic of thrust and resistance (active force and reaction force), realize the unlatching of lock or close.

Claims

1. mechanical anti-theft lock, by lock core, tapered end, lock body, disc, dead bolt, pulley, slideway constitutes. and it is characterized in that: disc is oblate cylindricality (diameter is greater than height), leave arc reducing groove identical shaped more than 2 or 2 along the disc card, the center line of arc reducing groove is along establishing a pulley that can move along cell wall in core different radii developing tank successively, pulley spindle and dead bolt are fixed, and dead bolt shift length and direction of displacement are controlled by disc anglec of rotation size and direction of rotation.