CN2464844Y

CN2464844Y - Door lock with key hole protective mechainsm

Info

Publication number: CN2464844Y
Application number: CN 01215103
Authority: CN
Inventors: 张桂锦
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-06
Filing date: 2001-02-06
Publication date: 2001-12-12
Anticipated expiration: 2011-02-06

Abstract

The utility model relates to a door lock with a key hole protective mechanism, comprising a lock core body and a lock core coat. The door lock with a key hole protective mechanism is characterized in that a key hole protective mechanism is arranged between the end part of the lock core body and the lock core coat. The utility model can prevent rain water or foreign bodies entering the key hole, and has a certain protective function to the lock core.

Description

The door lock of keyhole protection mechanism with lock

The utility model relates to a kind of door lock, particularly a kind of door lock of keyhole protection mechanism with lock.

All expose in the key hole of existing door lock, is subjected to erosions such as rainwater easily; Also allow external foreign material enter easily, stop up lockhole, cause unnecessary trouble.

It is a kind of simple and reasonable that the purpose of this utility model is to provide, and can prevent that rainwater or external foreign material from entering, the door lock of reliability and durability keyhole protection mechanism with lock.

The purpose of this utility model can reach by following measure: the utility model comprises lock core body, lock core sleeve, it is characterized in that: be provided with key hole protection mechanism between lock core body end and lock core sleeve.

The purpose of this utility model can also reach by following measure: key hole protection mechanism comprises two cylinders, four springs, location lid, be provided with at lock core body on the end in key hole and be provided with recess, article two, cylinder and being thrown on the keyhole in the recess, article four, spring also is located in the recess, withstand two cylinders respectively, spiral-lock is covered on two cylinders and four springs in the location, have the key hole on it, the position in key hole is corresponding with two cylindrical positions, lock core sleeve is placed in outside the lock core body, entangles the location lid.

Fig. 1 is loaded on structure elevation on the door lock for the utility model;

Fig. 2 is loaded on structure upward view on the door lock for the utility model;

Fig. 3 is local (cuing open) view that amplifies of the present utility model;

Fig. 4 is that A-A of the present utility model is to the structure sectional view;

Fig. 5 is that B-B of the present utility model is to the structure sectional view.

The utility model is described in further detail below in conjunction with accompanying drawing (embodiment):

With reference to Fig. 1～Fig. 5, the utility model comprises lock core body 1, lock core sleeve 2 and key hole protection mechanism etc.Whole lock core body 1 is loaded on the lock body 6, and its structure is identical with existing door lock.

Key hole protection mechanism comprises that two cylinders 3, four springs 4, location cover 5 etc.Lock core body 1 is provided with recess 1-1 on it is provided with the end of key hole 1-2, two cylinders 3 also are thrown in the recess 1-1, can shelter from the keyhole 1-2 on the lock core body 1; Article four, spring 4 also is hidden in the recess 1-1, withstands two cylinders 3 respectively; 5 spiral-locks are covered on two cylinders 3 and four springs 4 in the location, have key hole 5-1 on it, and the position of key hole 5-1 is corresponding with the position of two cylinders 3; Lock core sleeve 2 is placed in outside the lock core body 1, entangles the location and covers 5, has circular hole 2-1 on it, and its position is corresponding with the position of key hole 5-1.Other structure of lock core body 1 is identical with existing lock core, no longer narration.

During use, when not having key to insert, two cylinders 3 close up together under the effect of spring 4, make rainwater or foreign material can not enter keyhole.When key inserted, two cylinders 3 opened to both sides under the compressing of key, compression spring 4; Finish when unblanking behind the extraction key, auto-closing under the elastic force effect of two cylinder 3 springs 4 restores to the original state.

The utility model has following advantage compared to existing technology: simple and reasonable, reliable Durable, can prevent that rainwater or foreign material from entering keyhole, plays certain protective effect to lock core.

Claims

1, a kind of door lock of keyhole protection mechanism with lock comprises lock core body (1), lock core sleeve (2), it is characterized in that: be provided with key hole protection mechanism between lock core body (1) end and lock core sleeve (2).

2, tapered end according to claim 1, it is characterized in that: key hole protection mechanism comprises two cylinders (3), article four, spring (4), location lid (5), be provided with at lock core body (1) on the end in key hole and be provided with recess (1-1), article two, cylinder (3) and being thrown on the keyhole 1-2 in the recess (1-1), article four, spring (4) also is located in the recess (1-1), withstand two cylinders (3) respectively, location lid (5) spiral-lock is on two cylinders (3) and four springs (4), have key hole (5-1) on it, the position in key hole (5-1) is corresponding with the position of two cylinders (3), lock core sleeve (2) is placed in outside the lock core body (1), entangles location lid (5).