CN2168921Y - Mechanic safety door lock without key - Google Patents

Abstract

The utility model relates to a mechanical safety door lock without a key, which is composed of a lock rod, a pulling handle, a supporting plate, a number fixing male pin, a number moving pin, a propping spring, a positioning block, a guide block, a supporting seat and a manual rod. The axial direction of the lock rod is provided with an impassable groove, the radial direction of the lock rod is provided with an annular groove, and the inner hole of the pulling handle is provided with an exserted tooth which can be slid in the groove of the lock rod. The small end of the pulling handle is provided with small holes which are distributed uniformly in equal diameter along the circumference of the pulling handle, and the number moving can be realized. The lock numbers of the mechanical safety door lock can be given optionally. Hundred thousands of locks without the repeated lock numbers can be produced by increasing the quantity of the pulling handle. Outsiders can not see through the lock numbers. The mechanical safety door lock can be used widely for occasions, such as family door locks, car door locks, safe locks, etc.

Description

Mechanic safety door lock without key

The utility model is the frame for movement door lock.The classification number of International Classification of Patents is E05B.

At present, the domestic various door locks (no matter being family's door lock or automobile door lock etc.) that generally use all are with key operated, so after the key loss, it is not within minority with the situation of door to cause destroying door lock.And have key lock all to leave keyhole, the thief opens door from keyhole with stealing tool often, carries out criminal activity.

Though key-free lock can be found, do not see the example of application at home as yet from patent application document.As E05B37/20, the patent of＜the high coded lock of no key 〉, E05B37/00＜no key pins lock 〉, E05B37/20＜without the easy coded lock of key〉etc., its common drawback is a complex structure, be difficult to make, or structure is insecure, and is very easily destroyed.Particularly owner's inconvenience of unblanking in the dark.

The utility model is exactly a kind of novel no key mechanical structural safety door lock that designs for the shortcoming that overcomes above-mentioned key-free lock.

Operating principle of the present utility model is as follows:

When lock is in locked position of coupler and will unblanks, can be earlier forward zero-bit (can by clockwise or counterclockwise) to dialling handle (2), even also fixed number pin (4) leans against on the side of locating piece (7), then, by lock number fixed each number of dialling handle stir handle, its private mark of passing by number is conformed to numbering, at this moment, prominent tooth on the endoporus ring surface of each group handle just all is in same straight line, and has all entered the cannelure on the locking bar (1), at this moment, as long as stir hand lever (10), locking bar is withdrawed from from the lock storehouse, just door can be opened.

In the time will locking a door, as long as stir hand lever,, then rotate any one group handle again just can make locking bar enter the lock storehouse, just can realize locking.

The characteristics of the utility model structure:

Have the logical obstructed groove of an end of a vertical end on the locking bar (1), make the prominent tooth of dialling in handle (2) endoporus can do longitudinal sliding motion therein.On locking bar, also have and dial the corresponding cannelure of handle quantity, make the prominent tooth of dialling in the handle endoporus can be along circumferential slippage in cannelure.Also have uniform axial short groove in the both sides of cannelure, the thief can't be penetrated dial handle to be in what position and put in place.

The structure of dialling handle (2) is the stairstepping change of hollow, and it is sleeved on the locking bar (1) successively.At the microcephaly place of dialling handle (2), the aperture that is uniformly distributed along the circumference can be realized away number number pin therein, on the big circular face of dialling handle, carries out hatching knurling, so that increase frictional force when stirring handle.

Fixed number pin (4) is to number in order to the private mark of determining lock.Because fixed number pin is contained in the difference of the position of aperture, make it with the prominent tooth of group handle endoporus between distance also with change, so just produced different lock number.The number of walking pin (5) is in order to realize the number of walking action.It is under the effect of top spring (6), and when group handle was moving, the number of walking pin (5) can be reciprocating in the endoporus of locating piece (7), when its aperture on dialling handle is gone to another aperture, just passed by its intermittent movement one number, act on and dial handle, the signal that sends away number to the people.

Structure of the present utility model is different from the existing mechanical lock fully.This lock lock number can be adjusted voluntarily, along with the increase of dialing handle quantity can be manufactured hundreds thousand of locks that nothing is repeated to lock number, and simple in structure, easy to use, be easy to manufacturing, safe and reliable, have actual application value widely.

Structure brief introduction of the present utility model:

In Figure of description, from part (1) all is contained in the interlayer of interior external door panel of security door to part (10) in (external door panel is not all drawn in the accompanying drawing).For the ease of adjusting lock number, the internal hilar plate of laying this position, lock section can be made local movablely, external door panel then is necessary for monolithic.

Accompanying drawing is that the utility model door lock is equipped with 5 most preferred embodiments of dialling handle.

This accompanying drawing is the structural representation of no key mechanical safety door latch:

On locking bar (1), be equipped with 5 and dial handles, guide and guard piece (8) is housed, make the locking bar can be longitudinally reciprocating at an end of locking bar.In locating piece (7), be processed with circular hole, to pack top spring and walk pin number into.Supporting base (9) is main supporting mass, and it can separate one by one with dialling handle.The bottom of supporting base is fixed on the crossing frame of door.Expose outdoors the end of hand lever (10), can stir locking bar in indoor and outdoor, realizes the switching of door.The sub-fraction of dialling the face of cylinder of the big end of handle is exposed at outside the door-plate, can realize dialing, is evenly equipped with 12 equal diameter apertures on the face of cylinder of dialling the handle small end.Base plate (3) is used for fixing 5 locating pieces (7).Base plate can be fixed on the door-plate.

Claims (3)

1, a kind of no key mechanical safety door latch, it is characterized in that its by locking bar, dial handle, fixed number pin and walk number pin and forms, on locking bar, be equipped with 5 and dial handles, at an end of locking bar the guide and guard piece is housed, in locating piece, be processed with circular hole and sell with pack into the top spring and the number of walking.

2, by the described no key mechanical safety door latch of claim 1, it is characterized in that on locking bar, having the obstructed groove of the logical end of a vertical end and with dial the corresponding cannelure of handle quantity, also have uniform axial short groove in the both sides of cannelure.

3, by the described no key mechanical safety door latch of claim 1, it is characterized in that dialling handle is the stairstepping change of hollow, it is sleeved on the locking bar successively, dials the microcephaly place of handle, is uniformly distributed with aperture along the circumference.