CN201176769Y

CN201176769Y - Simple door lock

Info

Publication number: CN201176769Y
Application number: CNU2007203033657U
Authority: CN
Inventors: 何虹桥; 傅敏之; 陈强
Original assignee: ZHEJIANG KUNLUN CONSTRUCTION GROUP CO Ltd
Current assignee: ZHEJIANG KUNLUN CONSTRUCTION GROUP CO Ltd
Priority date: 2007-12-28
Filing date: 2007-12-28
Publication date: 2009-01-07
Anticipated expiration: 2017-12-28

Abstract

The utility model relates to a simple door lock, which comprises a lock body and a snap close, wherein one end of the lock body is provided with an opening; the lock body is provided with a spring and a rounded end bolt; the spring is positioned between a bottom wall inside the lock body and the rounded end bolt; when the spring contracts, the rounded end bolt retracts into the lock body; when the spring stretches, the rounded end bolt extends out from the opening of the lock body; and the snap close has an S-shaped smooth cambered surface. A door using the simple door lock can not be opened or closed under the action of gentle breeze, and is also convenient for opening and closing; moreover, the snap close has simple structure, convenient manufacturing and lower cost.

Description

A kind of Simple door lock

Technical field

The utility model relates to a kind of door lock.

Background technology

Door lock generally includes lock body, snap close, and the inclined-plane dead bolt that can freely stretch is housed in the lock body, and the snap close side is for to be the jack of inclined surface dead bolt telescopic moving, and after the inclined-plane dead bolt put in this jack, door was just locked.This door latch structure more complicated, cost is higher, and must be with key or rotation lock just opening door, just must vacate hand and just can open door when the two hand held object of people, and sometimes gentle breeze one blows, and can lock automatically again, brings inconvenience to life.

The utility model content

The purpose of this utility model provides that a kind of simple in structure, switch is convenient, lower-cost Simple door lock.

For realizing this purpose, the technical solution of the utility model is:

A kind of Simple door lock, comprise lock body and snap close, it is characterized in that described lock body one end opening, in spring, round end dead bolt are arranged, spring is in lock body between diapire and the round end dead bolt, in the round end dead bolt indentation lock body, the round end dead bolt stretches out from the lock body opening part when spring stretches when length of spring compressed, and described snap close has one section smooth cambered surface of S type.

Adopt the door lock of this technical scheme, opening at closing time, dead bolt contacts with the convex surface of snap close, when having only power on acting on door enough big, the snap close convex surface is enough to make dead bolt to overcome the interior power of spring tension indentation lock body just can for one of dead bolt, dead bolt could pass through convex surface, Men Caineng shuts or opens, and the power that gentle breeze blows on door can not make dead bolt pass through convex surface usually, and door just can not opened or shut under the effect of gentle breeze; As long as push away an Xiamen with pin, door just can be opened or be shut, and is very easy to use when the two hand held object of people; Snap close can be for having the steel disc of one section smooth cambered surface of S type, and simple in structure, easy to make, cost is lower.

Description of drawings

Fig. 1 is a schematic diagram of the present utility model.

The specific embodiment

As shown in Figure 1, a kind of Simple door lock, the lock body 1 and the S type snap close 2 that comprise an end opening, spring 3, round end dead bolt 4 are arranged in the lock body 1, and an end of spring 3 is fixed on the lock body 1 interior diapire, and the other end connects the afterbody of round end dead bolt 4, the round end portion of round end dead bolt 4 stretches out from lock body 1 opening part, round end dead bolt 4 can freely stretch under the work of spring 3, and the concave surface 5 of S type snap close 2 matches with the round end portion of round end dead bolt 3, convex surface 6 slynesses.

During use lock body is fixed on the door, S shaped steel sheet is fixed on the doorframe corresponding with the lock body setting height(from bottom), S shaped steel sheet concave, convex face is over against dead bolt.When door is in closed condition, the head of round end dead bolt is positioned at the concave surface of S type snap close, the round end dead bolt is in the nature elongation state, when opening the door, the head of round end dead bolt contacts with the convex surface of snap close through the concave surface of snap close, and the head of round end dead bolt is stressed to contract in lock body under the effect of spring, when the power of opening the door is enough big, the head of round end dead bolt just can slip over the convex surface of snap close, and door is just opened.Otherwise, at closing time as long as when the power of closing the door enough greatly the time, make the head of round end dead bolt slip over the convex surface of snap close, just shut.

Claims

1, a kind of Simple door lock, comprise lock body and snap close, it is characterized in that described lock body one end opening, in spring, round end dead bolt are arranged, spring is in lock body between diapire and the round end dead bolt, in the round end dead bolt indentation lock body, the round end dead bolt stretches out from the lock body opening part when spring stretches when length of spring compressed, and described snap close has one section smooth cambered surface of S type.