CN203334811U

CN203334811U - Door lock

Info

Publication number: CN203334811U
Application number: CN2013203668881U
Authority: CN
Inventors: 王振
Original assignee: Wuxi Institute of Commerce
Current assignee: Wuxi Institute of Commerce
Priority date: 2013-06-25
Filing date: 2013-06-25
Publication date: 2013-12-11
Anticipated expiration: 2023-06-25

Abstract

The utility model discloses a door lock, which comprises a lock cylinder and a key telescopic device. The key telescopic device comprises a seat cover and a spring. The seat cover is used to fix the spring. One end then tops the end of the key. The spring is added to facilitate the ejection of the key, and it is easier to pull out if some lock holes are tight.

Description

Door lock

Technical field

The utility model relates to door lock, relates in particular to the device that can make door lock automatically pull out.

Technical background

At present, people want switch door lock in daily life certainly, so but sometimes because worry, can forget the key of plug on door.Lucky timely discovery is given for change, unlucky just again bitting even change lock, so just to life, bring very large trouble, most critical or safety problem, a kind ofly end device that door will automatic spring and just can greatly reduce key and forget the probability pulled out if having.

Summary of the invention

This uses novel purpose to be to provide door lock, and it is withstood by spring when key inserts, and when hand unclamps, key will be ejected and, though owner forgotten, key also may be bound on the ground, the sound that now has been bound to, owner is bound to find.

Based on above purpose, the technical scheme that the utility model provides is: door lock comprises lock core, also comprise the key stretching device, described key stretching device comprises cover for seat and spring, and described cover for seat is for fixing spring, described spring one end peaks on lock core, and the other end peaks at the end of key.

Described cover for seat is placed in the slotting key end of lock core, on described cover for seat base, has keyhole, and described spring is positioned at cover for seat, can do stretching motion with respect to cover for seat, one end of described spring peaks at the end face of lock core, and the other end withstands on the base of key cover for seat, and for withstanding key.

beneficial effect

1) some lockhole increased spring and can conveniently eject key, if more also can more conveniently be extracted.

Spring is mounted in cover for seat, and cover for seat itself also can prevent from entering some foreign material such as dust.

The accompanying drawing explanation

Fig. 1 is used view before the utility model key inserts;

Fig. 2 is that the utility model key is screwed into rear use view.

The specific embodiment

Door lock, comprise lock core, also comprises the key stretching device, and described key stretching device comprises cover for seat and spring, and described cover for seat is for fixing spring, and described spring one end peaks on lock core, and the other end peaks at the end of key.Described cover for seat is placed in the slotting key end of lock core, on described cover for seat base, has keyhole, and described spring is positioned at cover for seat, can do stretching motion with respect to cover for seat, one end of described spring peaks at the end face of lock core, and the other end withstands on the base of key cover for seat, and for withstanding key.

Claims

1. A door lock, comprising a lock core, characterized in that: it also includes a key telescopic device, the key telescopic device includes a seat cover and a spring, the seat cover is used to fix the spring, and one end of the spring is pushed against the lock core, The other end is then pushed against the end of the key.

2. The door lock according to claim 1, characterized in that: the seat cover is set on the key insertion end of the lock cylinder, a key hole is opened on the base of the seat cover, and the spring is located on the seat cover Inside, it can perform telescopic movement relative to the seat cover. One end of the spring is pressed against the end face of the lock cylinder, and the other end is pressed against the base of the key seat cover, and is used to withstand the key.