CN2365361Y - Door lock capable of preventing from forgetting pulling out key - Google Patents

Abstract

The utility model provides a door lock capable of preventing from forgetting pulling out a key, which is added with a lock tongue on the basis of the existing movable door lock and changes a fixed driving piece of a locking head into a movable driving piece. When people forget to pulling out the key in closing the door, the added lock tongue can extend out of a lock body, so the door can not be closed so as to remind people to pull out the key; when the key is removed, the lock tongue retracts back into the lock body without influencing closing the door. Therefore, the anti-theft performance and the safety of the door lock are improved.

Description

Prevent the door lock forgetting to pull key

The utility model relates to a kind of door lock, especially a kind of door lock of forgetting to pull key of preventing.

The door lock that existing market is locked and sold and use, as family security door valve lock commonly used, though possessed certain anti-theft feature, but all there is not to prevent the function that people open the door and forget to pull key and just close the door after entering house, and in daily life owing to have a bad memory, or hold a variety of causes such as influence of thing and some accidents in the hand, people the turnover door have often forget to pull key in, when this situation takes place, except that life being caused extremely inconvenience, also can many unsafe factors have been increased to personnel and property within doors.

The purpose of this utility model provides a kind of except that possessing valve lock prior function, pulls out the key lock after can also reminds people unblanking, and further improves the door lock forgetting to pull key of preventing of the theftproof of door lock and safety.

The utility model is to increase a dead bolt on the basis of existing lock, and the driver blade of tapered end is removable by fixedly changing into, and the driver blade that promptly connects tapered end can move along the keyhole direction; Parallel increase by one dead bolt between dead bolt, the center line of dead bolt and the center line of driver blade are on a plane, its middle part of dead bolt and an other end for angle is with one section spring respectively, and the jacket seat of spring outsourcing one sheath in middle part through connecting is fixed on dead bolt on the lock body wall.

The utility model is except that the function that possesses common valve lock, when being characterized in after people open the door, forgetting to pull key, effect by key and driver blade, that newly-increased root dead bolt is stretched out outside the lock body, and this moment, door can't be shut, after people extract key, the dead bolt automatic drawing back, door can be shut, thereby has avoided the generation of unsafe factor, the theftproof and the safety that further improve door lock.

Elaborate below in conjunction with accompanying drawing.

Fig. 1 is the utility model internal construction schematic diagram.

Fig. 2 is the newly-increased structure part of the utility model schematic diagram.

The utility model is to improve on the basis of existing common valve lock, has kept the original door lock structure substantially, and the driver blade that will have door lock exactly now is by vertically promptly fixedly becoming vertically removable along tapered end keyhole direction; In lock body, increased simultaneously a dead bolt.

Link a movably driver blade (9) at tapered end (8) along the keyhole direction, stuck point (10) is arranged on the driver blade, under driver blade, have the cylinder (12) of (11) outer casing spring (14) fixing to be connected with passing lock body wall (13).Newly-increased dead bolt (2) is located between dead bolt (1) and (3) also in parallel, and the driver blade (9) that connects tapered end (8) can move along the keyhole direction; Parallel increase by one dead bolt (2) between dead bolt (1), (3), the center line of the center line of dead bolt (2) and driver blade (9) is on a plane, one for the dead bolt of angle (2) its middle part and the other end be with one section spring (16) respectively, middle part spring outsourcing one sheath (18) through the connection jacket seat (15) dead bolt (2) is fixed on the lock body wall (13).Wherein (4) are that curved bar, (7) are tapered end for cottor pin, (6).

As people and when not pushing the door open from inserting key outdoors dead bolt being opened, because key bit is to the effect of driver blade, make driver blade depress, take over a business to move down and dead bolt (2) angle effect, because dead bolt this moment (2) is withstood by keeper and can not move outside lock body, be that spring is compressed and deformation do not take place.After pushing the door open, dead bolt (2) is owing to the resistance that has not been subjected to keeper, under the effect of spring, stretch out lock body, people enter house the back if not extracting key just closes the door, and will block to close because of the dead bolt (2) that stretches out and not call, thereby reach the purpose that reminds people remembers to extract key.After extracting key, because the effect of spring will push away on will taking over a business, to the active force disappearance of dead bolt angle, under the effect of spring, dead bolt (2) is inner mobile to lock body, just shrinks back in the lock body again, does not close the door thereby do not influence.

Claims (1)

1. door lock that prevents to forget to pull key, comprise lock body (5), tapered end (6), (8) keeper, dead bolt (1), (3) and the connecting rod of fixedlying connected with dead bolt, spring, curved bar (4), it is characterized in that: the driver blade (9) that connects tapered end (8) can move along the keyhole direction; Parallel increase by one dead bolt (2) between dead bolt (1), (3), the center line of the center line of dead bolt (2) and driver blade (9) is on a plane, one for the dead bolt of angle (2) its middle part and the other end be with one section spring (16) respectively, middle part spring outsourcing one sheath (18) through the connection jacket seat (15) dead bolt (2) is fixed on the lock body wall (13).

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