CN2450295Y

CN2450295Y - Knob after automatically locking for antitheft door

Info

Publication number: CN2450295Y
Application number: CN 00259212
Authority: CN
Inventors: 舒济望
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-11-17
Filing date: 2000-11-17
Publication date: 2001-09-26
Anticipated expiration: 2010-11-17

Abstract

The utility model discloses a knob after automatically locking for an anti-theft door, which comprises a lock body, a main shaft, a main shaft sleeve, a torsion spring, a clip spring, a steel cover and an internal handle, wherein, an elastic force regulator is installed between the torsion spring and the clip spring, one end of the torsion spring is connected with the elastic force regulator, and the other end is connected with the lock body; at least more than two torsion spring bayonets and at least more than two protective feet are arranged on the elastic force regulator, and the protective feet are inserted into a cavity of the torsion spring. Through the torque force of the torsion spring is regulated by the torsion spring bayonets on the elastic force regulator, the friction among the torsion spring, the main shaft and the main shaft sleeve is overcome. The utility model has the advantages of light hand feeling, high sensitivity, long service life, simple structure, convenient operation, firm fixation, etc.

Description

Knob behind the security door automatic locking

The utility model relates to a kind of security door automatic locking, particularly a kind of back knob that is used for security door automatic locking inboard.

Functions such as at present, existing security door automatic locking has the convenience of unlatching, theftproof performance is good, mutual opening rate is low enjoy liking of consumers in general.But, owing to the reason of installing, the world connects in flakes about tending to cause locking bolt of the world up and down and doorframe friction are excessive, cause that feel is subjected to overweight, dumb when opening the door or locking a door, this moment, people just can't regulate torsion by automatic locking itself at all, can only solve by regulating frame for movement, exist the demolition difficulty, regulate inconvenient, problem such as waste time and energy; Simultaneously, also exist torsion spring directly to be connected with main shaft, open or when locking a door torsion spring and collar bush directly rub, fragile torsion spring and collar bush shorten automatic locking application life, and increase disadvantage such as automatic locking opening force.

For overcoming the problem of above-mentioned existence, the purpose of this utility model just provides a kind of simple in structure, easy for installation, can conveniently regulate torque magnitude, can not make directly knob behind the security door automatic locking of friction of torsion spring and main shaft and collar bush again.

For achieving the above object, knob behind a kind of security door automatic locking of the present utility model, comprise lock body, collar bush, main shaft and be socketed in torsion spring on the main shaft, jump ring, steel lid and Internal handle successively, collar bush is arranged on the lock body, main shaft can rotate relative to collar bush, the steel lid is fixed on the lock body, between torsion spring and the jump ring elastic modulator is housed, and torsion spring one end is connected the other end and is connected with lock body with elastic modulator.

Described elastic modulator is provided with at least two above torsion spring bayonet sockets.

Described elastic modulator is provided with at least two above torsion spring installing holes.

Described elastic modulator is provided with at least two above spats, and spats is inserted into the torsion spring inner chamber.

The utility model is owing to be equipped with elastic modulator between torsion spring and the jump ring, torsion spring one end is connected the other end and is connected with lock body with elastic modulator, elastic modulator is provided with at least two above torsion spring bayonet sockets or is provided with at least two above torsion spring installing holes, by regulating the installation site of torsion spring torsion spring bayonet socket on elastic modulator, the torsion of conveniently adjusted torsion spring, thus the expansion force of automatic locking can be changed; Again because elastic modulator also is provided with two or two above spats, spats is inserted into the torsion spring inner chamber, and spats, torsion spring rotate simultaneously, overcome the friction between torsion spring and main shaft and the collar bush, improve the sensitivity of automatic locking and opened number of times, prolong automatic locking application life, have characteristics such as simple in structure, easy to operate, fixed.

Below in conjunction with the drawings and the specific embodiments the utility model is described in further detail.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the structural representation of Fig. 1 elastic modulator.

Fig. 3 is Fig. 2 right view.

Fig. 4 is the another kind of structural representation of Fig. 1 elastic modulator.

Fig. 1, Fig. 2 and shown in Figure 3, knob behind a kind of security door automatic locking of the present utility model, comprise lock body 1, main shaft 3, be socketed in collar bush 2 on the main shaft 3, torsion spring 4, jump ring 6 and steel lid 7 and be fixed on Internal handle 8 on the main shaft 3, steel lid 7 is fixed on the lock body 1, between torsion spring 4 and the jump ring 6 elastic modulator 5 is housed, torsion spring 4 one ends are connected the other end and are connected with lock body 1 with elastic modulator 5, elastic modulator 5 is provided with two torsion spring bayonet sockets 52, also is provided with three spats, 51 spats 51 simultaneously and is inserted into torsion spring 4 inner chambers; With also be provided with on the lock body 1 of knob the same side, back the security door automatic locking in safety button 11, lock body 1 side is provided with main dead bolt 12.

During use; rotation Internal handle 8; Internal handle 8 drives main shaft 3 rotations; the elastic modulator 5 drive torsion springs 4 that are fixed on the main shaft 3 rotate simultaneously; because torsion spring 4 rotates simultaneously with spats 51; the inboard has spats 51 protections again; the interior torsion spring 4 of knob directly is connected with main shaft 3 after having overcome original automatic locking; torsion spring 4 directly rubs with main shaft 3 and collar bush 2 during rotation; cause the disadvantage that torsion spring is 4 easily broken, friction is excessive, thereby prolonged 4 application lifes of torsion spring, increased sensitivity and unlocking times that automatic locking is opened.Simultaneously, can be by regulating the installation site of torsion spring 4 torsion spring bayonet socket 52 on elastic modulator 5, the increase or the minimizing of conveniently adjusted torsion spring 4 torsion, present embodiment can be divided into high, medium and low third gear torsion, thereby can change the up and down world 10 expansion force in flakes of automatic locking, and then regulate the sensitivity that automatic locking is opened.

Shown in Figure 4, be the another kind of specific embodiment of the utility model elastic modulator 5, the torsion spring bayonet socket 52 that different is on the elastic modulator 5 makes torsion spring hole clipping 53 into, and other content is identical no longer to be repeated at this.

Claims

1, knob behind a kind of security door automatic locking, the torsion spring, jump ring, the steel that comprise lock body, collar bush, main shaft and be socketed in successively on the main shaft cover and Internal handle, collar bush is arranged on the lock body, main shaft can rotate relative to collar bush, the steel lid is fixed on the lock body, it is characterized in that: between described torsion spring (4) and the jump ring (6) elastic modulator (5) is housed, torsion spring (4) one ends are connected the other end and are connected with lock body (1) with elastic modulator (5).

2, knob behind the security door automatic locking according to claim 1, it is characterized in that: described elastic modulator (5) is provided with at least two above torsion spring bayonet sockets (52).

3, knob behind the security door automatic locking according to claim 1, it is characterized in that: described elastic modulator (5) is provided with at least two above torsion spring installing holes (53).

4, according to knob behind claim 2 or the 3 described security door automatic lockings, it is characterized in that: described elastic modulator (5) also is provided with at least two above spats (51), and spats (51) is inserted into torsion spring (4) inner chamber.