CN2183423Y

CN2183423Y - Spring door-bolt

Info

Publication number: CN2183423Y
Application number: CN 94201772
Authority: CN
Inventors: 陈风刚; 朱为民
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-01-29
Filing date: 1994-01-29
Publication date: 1994-11-23
Anticipated expiration: 2004-01-29

Abstract

The utility model provides a spring door-bolt. A bolt rack plate is fixed on a door leaf, a bolt shaft is movably penetrated in the hole of the bolt rack plate, the twist handle part of the bolt shaft is exposed on the outer surface of the door leaf, a screw sleeve is screwed and sheathed on the screw segment of the bolt shaft, a bolt tongue is sheathed on the screw sleeve, a spring is sheathed on the bolt shaft segment which is formed between the bolt shaft and the bolt tongue, the outer segment of the bolt shaft is movably sheathed with a shaft sleeve, the outer end of the shaft sleeve is buckled with a butterfly spring, and the outside of the butterfly spring is buckled and shielded with a check ring. When the twist handle part of the bolt shaft is rotated, the bolt tongue can follow with the bolt shaft to rotate; so the bolt tongue can be bolted with a frame plate. If the bolt tongue is pressed and the twist handle part is rotated at the same time, the thickness of the bolt gear of the bolt tongue can be adjusted.

Description

Spring door-bolt

The utility model relates to a kind of locking mechanism, the spring latch that uses on particularly a kind of door and window and the bin.

At present, the locking of the door and the dodge gate of iron bin generally realizes locking by lock, and the switching of itself and doorframe and cabinet frame is then realized by bolt.And existing bolt has two classes, and a class and door lock combine, and promptly refers to the outer scalable dead bolt of visiting on the lock body.It is in the effect that can not play bolt with key when locked, breaks down or damages in case its shortcoming is a lock body, and bolt is then not handy yet or dial useless simultaneously.The another kind of independent bolt that is mounted on bin or the door, it generally changes the door bolt axle of twisting by available hand and is fixed on the inboard door bolt tongue of door bolt axle and forms, promptly when fasten with a bolt or latch tongue when producing with cabinet frame or doorframe block door leaf then can open, otherwise door leaf closure then.Because the axial location of the door bolt tongue of this class bolt can't change, therefore, it can not be regulated with the elasticity that cabinet frame or doorframe engage.During tension, bolt inconvenience snaps in, and need push hard by door leaf this moment.When crossing pine, bolt is very easy tries to shirk responsibility down automatically, makes door bolt tightly invalid.Make its result of use not good enough.And, can't regulate according to the thickness of door leaf, the scope of application is restricted.

The purpose of this utility model is to overcome the above-mentioned shortcoming and defect of existing in prior technology, and provide a kind of rotation freely, plug in the spring latch that door bolt is reliable, can regulate by different door leafs and deckle board thickness.

The purpose of this utility model is to realize by following technical scheme:

On door leaf, be fixed with a door bolt frame plate, the door bolt axle is movable to be installed in the hole of fastening frame plate with a bolt or latch, turning round of door bolt axle is exposed at the part spy on the door leaf external surface, twist on the thread segment of door bolt axle and be with a thread bush, be with the door bolt tongue on the thread bush, on the door bolt shaft part between door bolt axle and the door bolt tongue, be with spring, button is placed with the dish spring in the axle sleeve outer end of the outer section movable set of fastening axle with a bolt or latch, the dish spring is buckled retaining outward back-up ring, when rotate the door bolt axle turn round part time, the door bolt tongue then rotates so that close with the deckle board door bolt thereupon, and when adjustment door bolt tongue door bolt kept off thickness, commentaries on classics was twisted to turn round part is got final product when pinning the door bolt tongue.

Therefore remarkable result of the present utility model is:

1. simple in structure, convenient feasible.

2. rotate freely, fasten with a bolt or latch and close reliably.

3. to close thickness adjustable for door bolt tongue door bolt, so be applicable to different body thicknesses.

Concrete structure of the present utility model is realized by the following examples and accompanying drawing thereof:

Fig. 1 is a section of structure of the present utility model.

Fig. 2 is installation site figure of the present utility model.

Fig. 3 is a fundamental diagram of the present utility model.

Fig. 4 is that the A of Fig. 2 is to view.

Be described in detail below in conjunction with 1～4 pair of concrete structure of the present utility model of accompanying drawing:

The utility model has a door bolt axle 1 and one door bolt tongue 3, it is characterized in that: 1 activity of door bolt axle is worn and is placed in the door bolt frame plate 8 that fixes with door leaf 9, twist on the thread segment 12 of door bolt axle 1 and be with thread bush 2, door bolt tongue 3 overlaps mutually admittedly with thread bush 2 cylindricals, retaining ring has dish spring 5 and back-up ring 6 on the inboard door bolt axle 1 of door bolt frame plate 8, door bolt tongue 3 and door bolt axle 1 turn round the door bolt axle 1 between 11 inboards axially between overlap to support spring 7 arranged.Referring to Fig. 1 to Fig. 3

Architectural feature of the present utility model also is:

Door bolt frame plate 8 T-shaped sheet structures, turning round of door bolt axle 1 the 11 outer outsides that are exposed at door leaf, the positioning section 13 of door bolt axle 1 is inserted with the open-work movable sleeve of door bolt frame plate 8, on thread segment 12 leading portions 14 of door bolt axle 1 movable be with one with the slip cap 4 of door bolt frame plate 8 opposite side open-work movable sets, cover is buckled with dish spring 5 and split washer 6 on the engaging section 15 in slip cap 4 outsides.Referring to Fig. 1 to Fig. 3

Door bolt tongue 3 is the rocking handle shape of plate-sheet-type and is positioned at door bolt frame plate 8, door bolt frame plate 8 is to be the hollow framework of Qian shape by the horizontal section that a T shape plate is bent into, the front side of the door bolt frame plate of Qian shape is the limiting plate 81 that opening shape, its downside have a horizontal lordosis, and the length direction cross sectional shape of door bolt tongue 3 is the rocking handle shape.Referring to Fig. 1 and Fig. 4

Using method of the present utility model is as follows:

When rotating the door bolt axle, the door bolt tongue closes or opens so that realize door bolt then with its rotation.Referring to Fig. 3 and Fig. 4

The effect of dish spring is the axial play that overcomes the door bolt axle, and it closely abuts against together each movable part potential energy with the post spring, makes it keep the good whole precision, to reduce the machining accuracy of each component.

As the thickness difference of door leaf 9 and framework 10, then can pin door bolt tongue 3, axle 1 is fastened in forward and reverse rotation with a bolt or latch, can make thread bush 2 along fastening axle 1 axial precessions with a bolt or latch or withdrawing from, and closes the purpose of thickness to reach the adjusting door bolt, so have the wider scope of application.

Claims

1, spring latch, an one door bolt axle (1) and a door bolt tongue (3) are arranged, it is characterized in that: (1) activity of door bolt axle is worn and is placed in the door bolt frame plate (8) that fixes with door leaf (9), the thread segment (12) of door bolt axle (1) is gone up to twist and is with thread bush (2), door bolt tongue (3) overlaps mutually admittedly with thread bush (2) cylindrical, going up retaining ring at the inboard of door bolt frame plate (8) door bolt axle (1) has dish spring (5) and back-up ring (6), door bolt tongue (3) and door bolt axle (1) turn round the door bolt axle (1) between (11) inboard axially between overlap to support spring (7) arranged.

2, according to the described spring latch of claim 1, it is characterized in that: the T-shaped sheet structure of door bolt frame plate (8), turning round of door bolt axle (1) (11) the outer outside that is exposed at door leaf, the positioning section (13) of door bolt axle (1) is inserted with the open-work movable sleeve of door bolt frame plate (8), the activity of going up of thread segment (12) leading portion (14) of door bolt axle (1) be with one with the slip cap (4) of door bolt frame plate (8) opposite side open-work movable set, the engaging section (15) in slip cap (4) outside goes up cover and is buckled with dish spring (5) and split washer (6).

3, according to claim 1 or 2 described spring latch, it is characterized in that: door bolt tongue (3) is the rocking handle shape of plate-sheet-type and is positioned at door bolt frame plate (8), door bolt frame plate (8) is to be the hollow framework of Qian shape by the horizontal section that a T shape plate is bent into, the front side of the door bolt frame plate of Qian shape is the opening shape, its downside has the limiting plate (81) of a horizontal lordosis, and the length direction cross sectional shape of door bolt tongue (3) is the rocking handle shape.