CN2351515Y

CN2351515Y - Latch of sliding window

Info

Publication number: CN2351515Y
Application number: CN 98229822
Authority: CN
Inventors: 李珍子
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-11-03
Filing date: 1998-11-03
Publication date: 1999-12-01
Anticipated expiration: 2008-11-03

Abstract

The utility model relates to a latch lock of a sliding window, which comprises a lock body with a fixing hole and a lock hook whose front end is provided with an inclined plane or an arc plane. The utility model is characterized in that a rotary shaft which is fixed on a knob switch with a rotating handle passes through an opening hole which is arranged on the lock body; the lock hook is fixed on the end part of the rotary shaft; a limiting device which can be used for controlling the rotation angle of the lock hook and a springing device which can make the lock hook reset are arranged on the lock body. The utility model has the advantages of simple structure, easy manufacturing, low cost, easy installation, less possibility of damage, etc. Only the sliding window is pushed, the window can be automatically locked; the utility model is used very conveniently; the utility model can be suitable for single-casement windows as well as double-casement windows.

Description

The sliding sash latch

The utility model relates to a kind of latch, particularly a kind of sliding sash latch.

Existing sliding sash latch generally is to be made of lock body, switch and latch hook, these latch complex structures, and the manufacturing cost height in the installation process, must be opened a bar shaped slotted hole on sash, and the bar shaped slotted hole makes the installation of latch very inconvenient because of processing is not easy standard; During use, the user can only adopt manual mode by latch that sash lock is tight; After using a period of time, latch damages easily because of the frequent collision of sliding window sash.

The purpose of this utility model provides a kind of simple in structure, sliding sash latch that cost is low and easy for installation, and it need only promote sliding sash just can be with the window automatic blocking.

The purpose of this utility model is to realize by such technical scheme, it includes the lock body of band fixing hole and the latch hook of front end band inclined-plane or cambered surface, it is characterized in that: Gu the turning cylinder on the rotary switch of band rotation handle passes the perforate that is arranged on the lock body, latch hook is fixed in the end of turning cylinder, but lock body is provided with the stopping means of the control lock hook anglec of rotation and the elastic device that latch hook is resetted.

When the utility model is installed, need only on the smooth rabbet of sash, open the circular hole of the latch hook of being convenient to pack into, just can the utility model be contained on the smooth rabbet of sash easily, and be fixed by fixing hole with screw.During use, sash need only be pushed to be equipped with on the frame of snap close, latch hook bangs into snap close, and sliding sash is because of the effect automatic blocking of elastic device; In the time of need windowing, need only twist the rotation handle of rotary switch, allow latch hook break away from snap close, can open the window easily.Stopping means can limit the anglec of rotation of latch hook, so that confirm that whether latch hook breaks away from snap close, plays the purpose that limits the latch hook location simultaneously when windowing.

Owing to adopted technique scheme, the utlity model has simple in structure, handling ease, low cost of manufacture, advantage such as easy for installation and not fragile, it need only promote sliding sash just can be with the window automatic blocking, very easy to use, applicable to single fan window, more be applicable to two-casement window.

Description of drawings of the present utility model is as follows:

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

Fig. 2 is the rear elevation of first kind of embodiment of the utility model;

Fig. 3 is the A-A sectional view of Fig. 2;

Fig. 4 is the B-B sectional view of Fig. 2;

Fig. 5 is the structural representation of second kind of embodiment of the utility model;

Fig. 6 is the structural representation of the third embodiment of the utility model;

Fig. 7 is the structural representation of latch hook among first kind of embodiment of the utility model;

Fig. 8 is the assembling schematic diagram of first kind of embodiment of the utility model.

Among the figure: 1. lock body; 2. latch hook; 3. fixing hole; 4. rotate handle; 5. rotary switch; 6. turning cylinder; 7. perforate; 8. cavity; 9. braking boss; 10. brake hole; 11. screw; 12. screw hole; 13. notch; 14. slotted eye; 15. spacer pin; 16. torsion spring; 17. extension spring; 18. round platform; 19. positive stop lug boss; 20. spacing edge-cut.

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

As shown in Figure 1, the utility model includes the lock body 1 of band fixing hole 3 and the latch hook 2 of front end band inclined-plane or cambered surface, it is characterized in that: as can be known in conjunction with Fig. 3,4, Gu the turning cylinder 6 on 4 the rotary switch 5 is passed the perforate 7 that is arranged on the lock body 1 in the band rotation, latch hook 2 is fixed in the end of turning cylinder 6, but lock body 1 is provided with the stopping means of control lock hook 2 anglecs of rotation and the elastic device that latch hook is resetted.

When the utility model is installed, need only on the smooth rabbet of sash, open the circular hole of the latch hook 2 of being convenient to pack into, just can the utility model be contained on the smooth rabbet of sash easily, and be fixed by fixing hole 3 with screw.During use, sash need only be pushed to be equipped with on the frame of snap close, latch hook 2 bangs into snap close, and sliding sash is because of the effect automatic blocking of elastic device; In the time of need windowing, the rotation that need only twist rotary switch 5 allows 4 latch hook 2 break away from snap close, can open the window easily.Stopping means can limit the anglec of rotation of latch hook 2, so that confirm that whether latch hook 2 breaks away from snap close, plays the purpose that limits latch hook 2 location simultaneously when windowing.

Shown in Fig. 3,4, can on lock body, not rock in order to make rotary switch, and make latch attractive in appearance in shape, lock body 1 is provided with the cavity 8 that can be inserted in rotary switch 5, and perforate 7 is arranged on the bottom of cavity 8.

Shown in Fig. 3,4,7, the affixed mode of the end of turning cylinder 6 and latch hook 2 is to be provided with braking boss 9 in the end of turning cylinder 6, latch hook 2 is enclosed within on the braking boss 9 by the brake hole 10 that is arranged on the latch hook 2 and match with braking boss 9, and screw 11 is fixed on latch hook 2 on the turning cylinder 6 by the screw hole 12 that is arranged on the braking boss 9 vertically.The end of turning cylinder 6 and the affixed mode of latch hook 2 also can be that the end and the latch hook 2 of turning cylinder 6 riveted mutually.

As Fig. 2,6 stopping means is that latch hook 2 is provided with notch 13 or slotted eye 14, Gu the spacer pin 15 on lock body 1 passes notch 13 or slotted eye 14.As shown in Figure 5, stopping means also can be that lock body 1 is provided with positive stop lug boss 19, and rotary switch 5 is provided with spacing edge-cut 20.

Shown in Fig. 2,3,4, elastic device is that torsion spring 16 is enclosed within on the turning cylinder 6, and torsion spring 16 1 ends are solid on lock body 1, and the other end and latch hook 2 join.As shown in Figure 6, elastic device also can be that extension spring 17 1 terminates on the lock body 1, and the other end and latch hook 2 join.

Shown in Fig. 3,4, in order to reduce the friction between revolution switch 5 and the lock body 1, revolution switch 5 is provided with round platform 18 with turning cylinder 6 joints.

Claims

1. sliding sash latch, include the lock body (1) of band fixing hole (3) and the latch hook (2) of front end band inclined-plane or cambered surface, it is characterized in that: Gu the turning cylinder (6) on the rotary switch of (4) (5) is passed the perforate (7) that is arranged on the lock body (1) in the band rotation, latch hook (2) is fixed in the end of turning cylinder (6), lock body (1) but be provided with the stopping means of control lock hook (2) anglec of rotation and the elastic device that latch hook is resetted.

2. sliding sash latch as claimed in claim 1 is characterized in that: lock body (1) is provided with the cavity (8) that can be inserted in rotary switch (5), and perforate (7) is arranged on the bottom of cavity (8).

3. sliding sash latch as claimed in claim 1, it is characterized in that: the affixed mode of the end of turning cylinder (6) and latch hook (2) is to be provided with braking boss (9) in the end of turning cylinder (6), latch hook (2) is enclosed within on the braking boss (9) by the brake hole (10) that is arranged on latch hook (2) and goes up and match with braking boss (9), and screw (11) is fixed on latch hook (2) on the turning cylinder (6) by the screw hole (12) that is arranged on the braking boss (9) vertically.

4. sliding sash latch as claimed in claim 1 is characterized in that: the end of turning cylinder (6) and the affixed mode of latch hook (2) are that the end and the latch hook (2) of turning cylinder (6) riveted mutually.

5. as claim 1,2,3 or 4 described sliding sash latch, it is characterized in that: stopping means is that latch hook (2) is provided with notch (13) or slotted eye (14), Gu the spacer pin (15) on lock body (1) passes notch (13) or slotted eye (14).

6. as claim 1,2,3 or 4 described sliding sash latch, it is characterized in that: stopping means is that lock body (1) is provided with positive stop lug boss (19), and rotary switch (5) is provided with spacing edge-cut (20).

7. as claim 1,2,3 or 4 described sliding sash latch, it is characterized in that: elastic device is that torsion spring (16) is enclosed within on the turning cylinder (6), and torsion spring (16) one ends are solid on lock body (1), and the other end and latch hook (2) join.

8. as claim 1,2,3 or 4 described sliding sash latch, it is characterized in that: elastic device is that extension spring (17) terminates on the lock body (1), and the other end and latch hook (2) join.

9. push-and-pull latch as claimed in claim 1 is characterized in that: revolution switch (5) is provided with round platform (18) with turning cylinder (6) joint.