CN2218818Y - Bolt lock for metal door and window - Google Patents

Abstract

The utility model discloses a bolt lock for metal doors and windows, which comprises a lock body and a lock piece. The utility model is characterized in that the lock body comprises a handle, a bolt rod, a locking decorative panel, a movable limiting pad, a limiting pin, a guiding pad, and a back cover plate. Compared with the existing lock for doors and windows, the utility model has the advantages of difficult unlocking and strong anti-prizing ability.

Description

A kind of latch lock of metal door and window

The utility model relates to a kind of bolt-type door and window lock of metal door and window.

Lock is colluded in existing metal push-pull formula door and window polyphyly employing or the spanner lock locks door and window, this class door and window lock exists following deficiency in actual use: the one, and bad mechanical strength, when door and window is subjected to certain external force or blast is done the time spent, the closed slit of push-and-pull fan increases, and has seriously reduced the watertightness and the tightness of door and window structure.The 2nd, theftproof performance is relatively poor, as at outdoor use power effect sash, makes the sash distortion, colludes just the spanner lock takes off, and the thief just can enter from outdoor easily.The 3rd, the installation site of colluding lock, spanner lock is all in the side of sash profile, and often the direction with the sash push-and-pull is opposite for the fixing direction of its panel, and self tapping gong nail is loose or dislocation easily, easily causes the sash lock accessory to lose, and then influences its functional performance.

The purpose of this utility model is to overcome above-mentioned deficiency and a kind of metal door and window latch lock is provided.

Its purpose is realized by following structure: this latch lock comprises lock body and locking plate two parts, its main feature is, described lock body comprises handle, bolt rod, locking decoration panel, movable spacing shim, position-limitting pin, guiding pad and back cover plate, wherein, position-limitting pin is fixed on the bolt rod, and bolt rod is divided into proximal part and distal portions, proximal part is with movable spacing shim, locking decoration panel and handle successively, and distal portions then is with guiding pad and back cover plate successively.

When this latch lock was installed, lock body was the interior doors and windows leaf that is loaded on push-pull door and window according to common way, and locking plate then is loaded on the outer doors and windows leaf.

Fig. 1 is the sectional view that the utility model is loaded on opening on the metal door and window.

Fig. 2 is the sectional view that the utility model is loaded on lock-out state on the metal door and window.

Fig. 3 is a kind of amplification front elevation of locking decoration panel.

Fig. 4 is the sectional view of Fig. 3

Below in conjunction with accompanying drawing the utility model is done concrete detailed description the in detail:

See figures.1.and.2, position-limitting pin 5 is fixed on the bolt rod by the through hole on the bolt rod 6, the proximal part of bolt rod puts interior window page or leaf section bar successively, movable spacing shim 4 and locking decoration panel 3, subsequently, handle 1 is fixed in the end of this part, the far-end of bolt rod then puts interior window page or leaf section bar successively, guiding pad 7 and back cover plate 8, at last, above-mentioned locking decoration panel 3 is fixed in the front of interior window page or leaf section bar by the gong nail, 8 back sides of being fixed in interior window page or leaf section bar by the gong nail of back cover plate, in addition, locking plate 9 is fixed on the exterior window page or leaf, and makes the perforate on it form relative with the bolt rod far-end.Like this, when handle 1 is pulled outward, because position-limitting pin 5 is subjected to the restriction of movable spacing shim 4 and unlikely disengagement, and when handle 1 is pushed away inward, the bolt rod far-end then stretches out under the guiding of guiding pad and inserts locking plate 9, under the rotation of handle 1 subsequently drives, bolt rod 6 far-ends will go to horizontal plane to two side-prominent positions, make outstanding position be subjected to the restriction of locking plate 9 and unlikely moving.

It is desirable to, in the such scheme, handle 1 is fixing by fixing pin 2 with bolt rod 6, it is spherical that the head of fixing pin 2 preferably is, the center trepanning of locking decoration panel 3, its outer edge is the protuberance cambered surface, like this, when locking, latch lever is advanced into the limit inward, and handle turns over 90 ° clockwise subsequently, and latch lever turns in 90 ° clockwise following handle, its end is gradually with locking plate 9 fastenings, and remaining slit will be lifted and dwindles greatly owing to the spherical crown shape head of fixing pin 2 draws near along the outside cambered surface that locks decoration panel 3 between terminal and the locking plate 9.

Bolt lock of the present utility model has following advantage:

1. this lock is fit to be installed on the front of two fan door and windows, its panel The push-and-pull direction of fixed-direction and door and window is mutually not on same straight line 90 °, be conducive to overcome the fixed-direction that in the past colluded lock and spanner lock Easily cause gong to follow closely the deficiency that comes off with sash push-and-pull opposite direction.

Since the bolt rod of this lock under lock-out state with inside and outside Two fan window pages or leaves tightly block from the centre, thereby the closure seam of sliding sash The crack is very little, is conducive to improve watertightness and the air-tightness of door and window.

3. outdoor, even external force makes sash deformation, the latch lock still is difficult for taking off colluding, and the thief also is difficult to therefrom pry open.

Claims (2)

1. the latch of a metal door and window is locked, comprise lock body and locking plate, it is characterized in that, described lock body includes handle, bolt rod, locking decoration panel, movable spacing shim, position-limitting pin, guiding pad and back cover plate, wherein, position-limitting pin is fixed on the bolt rod, and bolt rod is divided into proximal part and distal portions, proximal part is with movable spacing shim, locking decoration panel and handle successively, and distal portions then is with guiding pad and back cover plate successively.

2. the latch of root a tree name claim 1 lock is characterized in that handle and bolt rod are fixed by fixing pin, and the head of fixing pin is spherical, and its outer edge of center trepanning of locking decoration panel is the protuberance cambered surface.

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