CN2365365Y - Lock for door or window - Google Patents

Abstract

The utility model discloses a lock for doors and windows, which comprises a lock body, a lock pin, a handle, a pivot and a spring. A seat of the lock pin is arranged and is provided with a lock block. The pivot is vertically connected with the handle into a whole. The handle is installed on the outer surface of the lock body by passing through an installing hole on the lock body through the pivot. The lock pin is fixed to the pivot in the lock body. A groove which is matched with the lock block is arranged. The spring is positioned between the inner side of the lock body and the lock pin. In addition, the inner and the outer sides of the lock body can also be additionally provided with spacing mechanisms to make the handle just positioned when the handle is turned to an opening or a closing position. The handle and the lock pin of the utility model have self-locking performance. When the lock for doors and windows is operated, the handle can be made to be just positioned to a turn and can not be swung beyond a limit position.

Description

A kind of door and window lock

The utility model relates to a kind of door and window lock, particularly relates to a kind of door and window lock that is applicable to alumium alloy door and window.

Existing aluminium alloy door sash lock has many kinds of structures, and wherein Chang Yong a kind of structure is a swing type door and window lock, and it constitutes the door and window latch fitting by lock body, lock pin and handle, be fixed on the window frame, be equipped with the locking pin seat on the sash, wherein, lock pin is a hook-type, and handle and lock pin fuse, and is articulated on the lock body, vertical mutually with the window face, cocked handle, lock pin release lock key seat, can open the door and window lock, pull down handle, then lock pin fastens locking pin seat, and door and window is locked lock.Its weak point is: the no self-locking performance of this kind door and window lock, and after cocked handle was loosed one's grip, handle can be put back from trend original position direction because of action of gravity, window can not be in close fully or opening; In addition, the plane of oscillation of handle is vertical with the window face, and handle is higher to window frame inner face projection, easily and human body bump, particularly for child, the height of its handle often near the head with respect to child, has certain danger.

The purpose of this utility model provides a kind of door and window lock with self-locking performance.

The utility model is realized by following technical measures: it comprises lock body, lock pin and handle, be equipped with locking pin seat, locking pin seat is provided with lock dog, it is characterized in that: further comprising pivot and spring, pivot vertically is connected as a single entity with handle, handle is installed on the external surface of lock body by the installing hole that pivot passes on the lock body, lock pin then is fixed on the interior pivot of lock body, and be provided with lock dog be complementary groove, when pivotal handle, can drive lock pin and rotate, or enter in the locking pin seat with locking pin seat on lock dog interlock and lock, or release lock key seat and unblanking; Spring makes handle and lock pin have self-locking performance between lock body inboard and lock pin.

The further embodiment of the utility model is: described spring is a ripple disc spring sheet, and its waveform is a benchmark with the center of circle, is radiation and arranges, and this spring leaf is placed on the pivot, is clipped between lock body inboard and the lock pin.

Another embodiment of the present utility model is: described spring is a pair of spring, be provided with four limited blocks at the lock body medial surface symmetrically near installing hole, the two ends of spring are defined in the limited block, make two springs clamping pivot symmetrically, the cross section that is positioned at the pivot of retaining part is a cydariform.When the handle grip pendulum lock pin was rotated, because the bulging face effect of pivot, spring opened and produces elastic force to both sides gradually, when handle continues to rotate through bulging face, can make lock pin rotate to complete opening or complete closing state like a cork by elastic force.

As further improvement of the utility model, can also set up position-limit mechanism, so that handle goes to and opens or just put in place during fastening position.Described position-limit mechanism is promptly: on two positions of lock body external surface corresponding to the handle opening and closing projection is set respectively, to limit two extreme positions of handle.Described projection can also be arranged on the inboard of lock body, and towards a side of spring link stopper is set correspondingly at lock pin, and this block rotates at handle and unblanks or touch mutually with above-mentioned projection respectively during locking state.

The utility model compared with prior art has the following advantages: (1) because the effect of spring makes handle have self-locking performance, feel is better; (2) because the plane of oscillation of handle is parallel with the window face, can not reduce unsafe hidden danger because of the perk in window of unblanking; (3) because the effect of position-limit mechanism during operation, can make handle just put in place, just right, can not put extreme position; (4) when adopting spring, when pivotal handle drives the lock pin rotation, can go to desired location fast and effortlessly by the effect of elastic force.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the front view of first embodiment of the present utility model.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the right view of Fig. 1.

Fig. 4 is the structure chart of locking pin seat.

Fig. 5 is the left view of first embodiment when being in locking state.

Fig. 6 is the front view of second embodiment of the present utility model.

Fig. 7 is the left view of Fig. 6.

Fig. 8 is that lock pin among Fig. 7 is towards the schematic diagram of spring one side.

Shown in Fig. 1～5 is first embodiment of the present utility model, it comprises lock pin 1, lock body 3, handle 4, pivot 5 and spring 6, and be equipped with locking pin seat 2, locking pin seat 2 is provided with semicircle lock dog 21, the pivot 5 approximate four prism types that are, and vertically be connected as a single entity with handle 4, handle 4 is installed on the external surface of lock body 3 by the installing hole that pivot 5 passes on the lock body 3, lock pin 1 is the disk of buckle, disc centre has installing hole and is installed on pivot 5 in the lock body 3, the side of lock pin 1 is provided with groove along its circumferencial direction, when pivotal handle 4 when locking state, this groove just with locking pin seat 2 on set lock dog 21 interlock.Spring 6 is between lock body 3 inboards and lock pin 1, and this spring 6 is made up of surface two annular spring leafs in wave shape, is placed on the pivot 5 by annular distance, and the end play of these two spring leaf present positions is about 2 millimeters.Be provided with two projections 31 at the external surface of lock body 3 and be used for spacingly, rotate to and lock or just touch mutually with projection 31 respectively during unlocking condition when handle 4 drives lock pins 1.

Fig. 6 and shown in Figure 7 be second embodiment of the present utility model, with the difference of first embodiment be: spring 6 is a pair of elongated springs, wherein the thickness of each spring is about 1 millimeter, medial surface at lock body 3 is provided with four limited blocks 32 symmetrically near installing hole, the two ends of spring are defined in the limited block, make two springs clamping pivot 5 symmetrically, the cross section that is positioned at the pivot 5 of retaining part is a cydariform.The position-limit mechanism of present embodiment is arranged on two projections 31 of lock body 3 inboards, and towards a side of spring 6 link stopper 11 is set correspondingly at lock pin 1, rotate to and lock or during unlocking condition, this block 11 touches mutually with above-mentioned projection 31 respectively, to reach spacing purpose when handle 4 drives lock pins 1.

Claims (5)

1, a kind of door and window lock, it is characterized in that: it comprises lock body, lock pin and handle, be equipped with locking pin seat, locking pin seat is provided with lock dog, it is characterized in that: further comprising pivot (5) and spring (6), pivot (5) vertically is connected as a single entity with handle (4), and handle (4) is installed on the external surface of lock body (3) by the installing hole that pivot (5) passes on the lock body (3), lock pin (1) then is fixed on the pivot (5) in the lock body (3), and is provided with and lock dog (21) is complementary groove; Spring (6) is positioned between lock body (3) inboard and the lock pin (1).

2, door and window lock according to claim 1, it is characterized in that: described spring (6) is a ripple disc spring sheet, and its waveform is benchmark with the center of circle, is radiation and arranges, this spring leaf is placed on the pivot (5), is clipped between lock body (3) inboard and the lock pin (1).

3, door and window lock according to claim 1, it is characterized in that: described spring (6) is a pair of spring, be provided with four limited blocks (32) at lock body (3) medial surface symmetrically near installing hole, the two ends of spring are defined in the limited block (32), two springs are clamping pivot (5) symmetrically, and the cross section that is positioned at the pivot of retaining part is a cydariform.

4,, it is characterized in that according to according to any one described door and window lock in the claim 1 to 3: also comprise position-limit mechanism, described position-limit mechanism promptly: on two positions of lock body (3), a projection (31) is set respectively corresponding to handle (4) opening and closing.

5, door and window lock according to claim 4, it is characterized in that: two projections (31) in the described position-limit mechanism are arranged on the inboard of lock body (3), towards a side of spring (6) link stopper (11) is set correspondingly at lock pin (1), this block unblank or locking state under touch mutually with projection (31) respectively.

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