CN2285348Y

CN2285348Y - Anti-theft spring lock

Info

Publication number: CN2285348Y
Application number: CN 97217768
Authority: CN
Inventors: 王法林
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-05-09
Filing date: 1997-05-09
Publication date: 1998-07-01
Anticipated expiration: 2007-05-09

Abstract

The utility model relates to a modified theftproof latch lock, including main lock casing and vice lock casing, the locking mechanism of main lock casing includes the spring bolt shell, two have sector gear and intermeshing's spring bolt lever and reduction spring, the spring bolt shell moves on the unsettled track of the fixed one end of one end that is equipped with the reduction spring, the afterbody of one of them lever has a hollow and with the corresponding frame mechanism of knob plectrum, the frame mechanism's the left side and the right widen the spring bolt shell no matter retract completely or emit the center that can both shelter from the knob completely. Due to the adoption of the structure, the utility model has the advantages of convenient installation, low maintenance rate and difficult failure.

Description

Theft-proof spring lock

The utility model belongs to field of lockset, is specifically related to a kind of improved Theft-proof spring lock.

The patent No. is 92224714.5 double door latch, its locking machine tree has sector gear and intermeshing dead bolt lever and reverse spring by dead bolt shell and two and forms, the front end of two levers is respectively upper lock tongue and following dead bolt, the fulcrum of lever by dowel fixes on the dead bolt shell, the dead bolt shell moves being equipped with on the track of spring, wherein the afterbody of a lever one hollow arranged and and the corresponding frame mechanism of turn-knob plectrum.Its weak point is:

1, the edge of frame mechanism is narrow, and promptly cavity is excessive, and is when to door lock being installed, long slightly even the tapered end lengthy motion picture stretches into lock body like this, generally also imperceptible during installation, can not work after the installation, have to heavily tear refitting open, increases trouble;

2, the track that spring is housed is that two ends are fixed, and there is a R-joining centre, by the R-joining spring of packing into, difficulty is installed, and occurs the fault that spring ejects sometimes from R-joining.

The purpose of this utility model is intended to overcome above-mentioned shortcoming, and the Theft-proof spring lock that a kind of maintenance rate is low, easy for installation, reduce trouble is provided.

For achieving the above object, the utility model adopts following solution: comprise main lock housing body and secondary lock housing body, main lock housing body is made up of with the bonnet of being with turn-knob and retaining mechanism etc. the protecgulum of core with lock, retaining mechanism comprises the dead bolt shell, two have sector gear and intermeshing dead bolt lever and reverse spring, the front end of two levers is respectively upper lock tongue and following dead bolt, the fulcrum of lever by dowel fixes on the dead bolt shell, the dead bolt shell moves being equipped with on the track of reverse spring, wherein the afterbody of a lever have a hollow and and the corresponding frame mechanism of turn-knob plectrum, projection on the turn-knob plectrum is positioned at the hollow of frame mechanism, and can move along one section edge of frame mechanism, the notch that has radian of safety effect and the bending section with certain radian of a position-limiting action have been arranged on mobile section of frame mechanism, bending section is provided with spacing point, it is characterized in that: the left side and the right of the framework of the frame mechanism of hollow are widened, the degree of widening is to the no matter withdrawal or emit the center of the centre bore that can both block lock body fully fully of dead bolt shell, and the center of the centre bore of lock body is exactly the center of turn-knob; Two tracks that join together that reverse spring is installed be an end fixedly the other end is unsettled, the notched sheet metal that joins together with track can bend up 90 ° and be used for the free end of supporting track, and stops the ejection of the reverse spring in the track of packing into.

Compared with prior art, the utlity model has following advantage:

1, because no matter fully the utility model is widened to the withdrawal or emit the center of the centre bore that can both block lock body fully of dead bolt shell with the left side of framework and the right, like this when lock being installed to door, long as the tapered end lengthy motion picture, will be stopped by framework and insert not enter, the length that the installer will suitably cut short lengthy motion picture continues to install; As edge not being widened, it is long slightly that the tapered end lengthy motion picture stretches into lock body, during installation general sensation less than, can not work after the installation, have to heavily tear refitting open, increase trouble, thus the utlity model has reduce trouble, advantage that maintenance rate is low.

2, because track of the present utility model is that fixedly the other end is unsettled for an end, reverse spring is packed into from the free end of track, make the notched sheet metal that joins together with track bend up 90 ° of free ends that are used for supporting track with instrument then, and stop the ejection of spring, this track is smooth and seamless, reliability improves, so the utlity model has characteristics easy for installation, that be difficult for breaking down.

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

Fig. 1, the utility model are opened the locking state schematic diagram behind the protecgulum.

Fig. 2, the utility model dead bolt shell schematic diagram in the lock body of all withdrawing.

Fig. 3, the utility model are installed the schematic diagram of the track of reverse spring.

Fig. 4, the utility model overall schematic.

As shown in the figure, the utility model comprises main lock housing body 3 and secondary lock housing body 1, main lock housing body 3 is made up of the protecgulum of core with lock and the bonnet and the retaining mechanism of band turn-knob 14, retaining mechanism comprises dead bolt shell 4, two have sector gear and intermeshing dead bolt short lever 5 and long lever 7 and reverse spring 6, the front end of two levers is respectively upper lock tongue 2 and following dead bolt 10, the fulcrum of lever by dowel fixes on dead bolt shell 4, dead bolt shell 4 moves on the track 9 that reverse spring 8 is housed, wherein the afterbody of long lever 7 have a hollow and and the plectrum 12 corresponding frame mechanisms of turn-knob 14, the left side and the right of framework are specially widened, no matter fully the degree of widening to dead bolt shell 4 withdrawal or emit the center of the centre bore that can both block lock body fully, the center of the centre bore of lock body is exactly the center of turn-knob 14, projection 11 on the plectrum 12 of turn-knob 14 is positioned at the hollow of frame mechanism, and can move along one section edge of frame mechanism, the notch that has radian of safety effect and the bending section with certain radian of a position-limiting action have been arranged on mobile section of frame mechanism, bending section is provided with spacing point, the track that joins together 9 that reverse spring 8 is installed is that fixedly the other end is unsettled for an end, the notched sheet metal 13 that joins together with track can bend up 90 ° and be used for the free end of supporting track 9, and stops the ejection of the reverse spring 8 in the track 9 of packing into.

When lock being installed to door, long as the lengthy motion picture 15 of tapered end 16, will be stopped and insert not enter that the length that the installer will suitably cut short lengthy motion picture 15 continues to install by framework; As edge not being widened, it is long slightly that the lengthy motion picture 15 of tapered end 16 stretches into lock body, during installation general sensation less than, can not work after the installation, have to heavily tear refitting open, increase trouble.

Claims

1, a kind of Theft-proof spring lock, comprise main lock housing body and secondary lock housing body, main lock housing body is made up of with the bonnet of being with turn-knob and retaining mechanism etc. the protecgulum of core with lock, retaining mechanism comprises the dead bolt shell, two have sector gear and intermeshing dead bolt lever and reverse spring, the front end of two levers is respectively upper lock tongue and following dead bolt, the fulcrum of lever by dowel fixes on the dead bolt shell, the dead bolt shell moves being equipped with on the track of reverse spring, wherein the afterbody of a lever have a hollow and and the corresponding frame mechanism of turn-knob plectrum, projection on the turn-knob plectrum is positioned at the hollow of frame mechanism, and can move along one section edge of frame mechanism, the notch that has radian of safety effect and the bending section with certain radian of a position-limiting action have been arranged on mobile section of frame mechanism, bending section is provided with spacing point, it is characterized in that: the left side and the right of the framework of the frame mechanism of hollow are widened, the degree of widening is to the no matter withdrawal or emit the center of the centre bore that can both block lock body fully fully of dead bolt shell, and the center of the centre bore of lock body is exactly the center of turn-knob; Two tracks that join together that reverse spring is installed be an end fixedly the other end is unsettled, the notched sheet metal that joins together with track can bend up 90 ° and be used for the free end of supporting track, and stops the ejection of the reverse spring in the track of packing into.