CN2389988Y

CN2389988Y - Spring window opening device

Info

Publication number: CN2389988Y
Application number: CN 99225085
Authority: CN
Inventors: 陶成久; 徐晓光
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-09-20
Filing date: 1999-09-20
Publication date: 2000-08-02
Anticipated expiration: 2009-09-20

Abstract

The utility model relates to a spring window opening device. The device comprises a hook plate, a hook plate spring and a button, wherein, a square hole is arranged on the button, a hook head of the hook plate can be inserted in the square hole, and both ends of the hook plate spring are respectively contacted with the hook plate and a spring window. The plane end of the hook plate is contacted with the spring window without welding, the hook plate is reset by the elastic force of the hook plate spring, and hand feeling is good. Because only one hook plate pressure spring is added, one square hole is arranged on the button, welding procedure is omitted, the utility model has the advantages of simple structure and simple technology.

Description

A kind of bullet window opening device

The utility model relates to a kind of bullet window opening device.

Most of security doors all are equipped with the bullet window.When the bullet window is closed, collude plate and collude on the bullet window frame, this moment, spring was compressed; Press button and will collude plate and push open, play window and under the effect of spring, open.Known bullet window opening device is that an end that will collude plate is welded on the bullet window elastic reset of utilization itself.Because the inaccurate and weld defect in location in the welding, often collude in use that plate comes off, pressing button is firmly excessive, the normal use of influence bullet window.

The purpose of this utility model is that a kind of improved bullet window opening device will be provided, and can prevent to collude plate effectively and come off, and pressing button is firmly excessive.

The purpose of this utility model is achieved in that on button increases a square hole, and the eave tile that colludes plate can insert square hole, the two ends of colluding the plate stage clip respectively with collude plate, play window and contact, the planar ends of colluding plate contacts with the bullet window, do not need welding, collude plate by colluding the elastic reset of plate stage clip, good hand touch.

The utility model only increases by one and colludes the plate stage clip, opens a square hole on button, has removed welding sequence, so structure, technology are simple especially.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is the sectional view according to the bullet window opening device that the utility model proposes.

Fig. 2 is the front view that colludes plate 1.

1, collude plate, 2, collude plate stage clip, 3, button, 4, peephole,

5, play window, 6, bullet window frame

This device comprise collude plate 1, collude plate stage clip 2, button 3.

The section that colludes plate 1 is step-like.One end is bent eave tile at 45, and the other end is that the plane contacts with playing window 5, and the centre has through hole to match with peephole 4.

Button 3 is the multidiameter shape, and axial section is a rectangle, and small end matches with playing window 5 oblong aperture, and big end has square hole, and the eave tile that colludes plate 1 inserts in the square hole.

Rag iron spring 2 is sleeved on the peephole 4, two ends respectively with collude plate 1, play window 5 and contact.

Claims

1, a kind of bullet window opening device by collude plate 1, collude plate stage clip 2, button 3 is formed, it is characterized in that: collude plate 1, collude plate stage clip 2 and be sleeved on the peephole 4, the two ends of colluding plate stage clip 2 respectively with play window 5, collude plate 1 and contact, the eave tile that colludes plate 1 inserts in the square hole of button 3, the planar ends of colluding plate 1 contacts with playing window 5, and an end of button 3 inserts in the oblong aperture that plays window 5.