CN2152874Y

CN2152874Y - Rotary safety door latch

Info

Publication number: CN2152874Y
Application number: CN 93201144
Authority: CN
Inventors: 沈强
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-01-08
Filing date: 1993-01-08
Publication date: 1994-01-12
Anticipated expiration: 2003-01-08

Abstract

The utility model provides a rotary safety door latch which is used for doors and windows. The utility model is composed of a U-shaped trough plate and a door latch plate. The utility model is characterized in that a rotatable latch which is riveted on the pedestal of the door catch plate is utilized, and the rotatable latch is entered into or disengaged form the U-shaped through of the U-shaped trough plate according the anticlockwise rotation and the clockwise rotation of the rotatable latch; so the door and the window can be latched or opened. A safety card which is riveted on the wall of the U-shaped trough plate and can rotate outward is clamped on a convex card, and the convex card and the rotatable latch are assembled to form an integrative structure; so the safety function can be realized. The utility model has the advantages of simple structure, convenient use, safe use, etc. The utility model is a relatively ideal door catch for indoor door and window.

Description

Rotary safety door latch

The utility model relates to a kind of indoor door and window latch that is applicable to, particularly a kind of rotary safe bolt.

Present indoor door and window generally adopts angle catch, i.e. the card edge type latch window of bolting the door.Not only this latch handle is little, and jack is also little, and latch enters the jack inconvenience during use, especially after the door and window distortion, with regard to more difficult insertion, and hangs bad clothes easily, and is therefore neither attractive in appearance, inconvenient again.Be exactly its patent No. of Chinese patent be 91214151.4 " rotary door latch ", though angle catch is made a big improvement, its structure more complicated lacks the sense of security simultaneously.

The purpose of this utility model is to provide a kind of rotary safe bolt simple in structure, esy to use, safe and reliable.

The utility model rotary safe bolt is made up of U-lag plate and bolt plate, have a U-lag on the U-lag plate and on its wall riveted one only to the insurance card of inner rotary, on the base of bolt plate riveted rotatable 270 degree and have in the middle one with it the little curved piece of one be the convex clip of holding insurance card, the rotation door bolt of a fixed handle arranged in its end.During use, only rotation need be fastened with a bolt or latch, just can fasten door and window tightly with a bolt or latch or open by contrary or clockwise direction rotation.

The utility model rotary safe bolt is compared with background technology, has simple in structure, handling ease, advantage such as with low cost, elegant in appearance, esy to use, safe and reliable, is a kind of bolt of comparatively desirable indoor door and window.

Fig. 1 is that the rotary safe bolt is opened the work schematic diagram.

Fig. 2 is the tight work of a rotary safe bolt door bolt schematic diagram.

Fig. 3 is a rotary safe bolt lateral view.

The utility model rotary safe bolt is made up of U-lag plate 1 and bolt plate 2, with wood screw be fixed on that U-lag plate 1 on doorframe or the window frame comprises U-lag 6 and on its wall riveted only to the insurance card 5 of inner rotary; With wood screw be fixed on bolt plate 2 on door or the window comprise base 7 and thereon rotatable 270 degree of of riveted and have in the middle with it that the little curved piece of one is a convex clip 8 of holding insurance card 5, have the rotation of a fixed handle 4 to fasten 3 with a bolt or latch in its end.During use, as long as holding handle 4 will rotate door bolt 3 and pour in the U-lag 6 by rotation counterclockwise, therebetween, insurance card 5 since rotated the power of convex clip 8 on the door bolt 3 effect and to inner rotary, along with rotation door bolt 3 is in place in U-lag 6, insurance card 5 is put in place voluntarily by the effect of self gravitation again, i.e. tight the and voluntary insurance door or window bar; When opening, also as long as insurance card 5 is held up gently, hold handle 4 again and will rotate and fasten 3 with a bolt or latch and one revolve in the direction of the clock, door and window can be opened.

Claims

1, the rotary safe bolt used of a kind of door and window, form by U-lag plate (1) and bolt plate (2), it is characterized in that on U-lag plate (1), having U-lag (6) and on its wall riveted one only to the insurance card (5) of inner rotary, the base (7) of bolt plate (2) go up riveted one rotatable and have in the middle one with it the convex clip of the little curved piece of one (8), the rotation door bolt (3) of a fixed handle (4) is arranged in its end.

2,, it is characterized in that insurance card (5) is on the convex clip (8) that is stuck on the rotation door bolt (3) according to the described rotary safe bolt of claim 1.