CN2583301Y

CN2583301Y - Window lock

Info

Publication number: CN2583301Y
Application number: CN 02248842
Authority: CN
Inventors: 麦永杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-24
Filing date: 2002-10-24
Publication date: 2003-10-29
Anticipated expiration: 2012-10-24

Abstract

The utility model relates to a window lock. A cover plate of a lock body box is provided with two arched plates, and a circular shaft penetrates through the inner part of holes arranged at the free ends of the two arched plates. A shaft sheathed with a torsion spring penetrates through the inner parts of holes arranged on two legs extending from both ends of the bottom of the lock body box, and a bended part arranged at the middle part of a moving lock hook hooked with a fixing lock hook is connected with a pivot hinge. One end of the moving lock hook presses on the circular shaft, and the other end is hooked with the fixing lock hook which is fixed on a window frame. When the window is opened, a finger extends into the lock body box from a nick arranged on the cover plate, and the cover plate is opened along the arm direction. The movement conforms to the bending rule of the finger, and the phenomena of finger slipping and hand clamping can not occur. With the proposal, the utility model provides a window lock which has no occurrence of finger slipping and hand clamping.

Description

Sash lock

[technical field] the utility model belongs to sash lock.

The sash lock that [background technology] is present, finger gos deep into groove on the lock body when unblanking, and when colluding moveable lock hook and lifting slippage takes place easily, and the phenomenon of tong often takes place.

[summary of the invention] the utility model will overcome above-mentioned shortcoming, and a kind of sash lock that can not point slippage or tong is provided.

The technical scheme that adopts is: a kind of sash lock, comprise lock body and latch hook,

It is the center of circle that the cover inner surface two ends of lock case have with the cover plate upper limb, is the external arc of radius less than the lock case inside wall height, and the interior circular arc of concentric surrounds the arc that centering angle is the 70-90 degree; Two arcs pass circular shaft in the free-ended hole; Pass the axle that is with torsion spring in the hole on two supporting legs that stretch out at two ends at the bottom of the lock case, the bending part at movable latch hook middle part connects with pivot hinge, and movable latch hook one end leans against on the circular shaft, and the other end is hooked together with the fixedly latch hook that is fixed on the window frame; Torsion spring one end connects with supporting leg, and the other end is pressed in the movable latch hook back side.

When windowing, the breach of finger from the cover plate stretches into lock case, and along scratching circular shaft on the moving arc of the strip of uncapping perpendicular to the orientation arm of window frame around the rotation of cover plate upper limb, and compressing activity latch hook pivots, gib head then round about rotation throw off fixedly latch hook.When closing window, promote window frame.When movable latch hook was run into fixedly latch hook, fixedly latch hook promotion activity latch hook overcame torsion spring torsion after inner rotary is crossed fixedly latch hook, and torsion spring compressing activity latch hook is to fixing latch hook direction rotation and hook the pin hook automatically.

Because when windowing, finger is that the breach from the cover plate that is parallel to window frame stretches into lock case, and the finger natural torsion throws off latch hook along scratching the plate of uncapping perpendicular to the orientation arm of window frame, meets the crooked rule of finger, can not point the phenomenon of slippage or tong.Adopt this scheme, a kind of sash lock that can not point slippage or tong is provided.

[description of drawings]

Fig. 1 is the structural representation of the utility model sash lock specific embodiment.

[embodiment]

Embodiment 1: a kind of sash lock, comprise lock body and latch hook, as Fig. 1, it is the center of circle that cover plate (1) the inner surface two ends of lock case (2) have with the cover plate upper limb, less than the lock case inside wall height is the external arc of radius, and the interior circular arc of concentric surrounds the arc that centering angle is the 70-90 degree (4); Pass circular shaft (3) in the free-ended hole of two arcs; Pass the axle (7) that is with torsion spring (8) in the hole on two supporting legs (6) that stretch out at lock case (2) two ends, the end, the bending part at movable latch hook (9) middle part and axle (7) hinge-coupled, movable latch hook one end leans against on the circular shaft (3), and the other end is hooked together with the fixedly latch hook (10) that is fixed on the window frame; Torsion spring one end connects with supporting leg, and the other end is pressed in the movable latch hook back side.

Claims

1, a kind of sash lock, comprise lock body and latch hook, it is characterized in that: cover plate (1) the inner surface two ends of lock case (2) have with the cover plate upper limb to be the center of circle, to be the external arc of radius less than the lock case inside wall height, and the interior circular arc of concentric surrounds the arc that centering angle is the 70-90 degree (4); Pass circular shaft (3) in the free-ended hole of two arcs; Pass the axle (7) that is with torsion spring (8) in the hole on two supporting legs (6) that stretch out at lock case (2) two ends, the end, the bending part at movable latch hook (9) middle part and axle (7) hinge-coupled, movable latch hook one end leans against on the circular shaft (3), and the other end is hooked together with the fixedly latch hook (10) that is fixed on the window frame; Torsion spring one end connects with supporting leg, and the other end is pressed in the movable latch hook back side.