CN2340864Y

CN2340864Y - Automatic window lock

Info

Publication number: CN2340864Y
Application number: CN 98234778
Authority: CN
Inventors: 刘家荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-07-30
Filing date: 1998-07-30
Publication date: 1999-09-29
Anticipated expiration: 2008-07-30

Abstract

The utility model relates to a novel automatic window lock which comprises a lock shell and a lock catch. The oblong lock shell is provided with a boss, and the back face of the boss is provided with a groove. The utility model is characterized in that the boss is provided with a support frame; a press plate which is provided with a notch is arranged in the groove; both ends of the notch of the press plate are hinged with the support frame of the boss. Two double hooks which form 'five'-shapeds are respectively arranged on the boss through pin shafts respectively provided with a torsion spring; one edge card of notch of the press plate is clamped with one end of each double hook. At the time of window closing, the other end of each double hook is hooked with the lock catch. The utility model has the advantages of high anti-theft performance, simple structure, low cost, convenient operation, etc.

Description

New type auto sash lock

The utility model relates to a kind of new type auto sash lock.

At present, the aluminum window of horizontal drawing all uses lock for automatic closing window, meeting automatic locking after window is shut, no matter be to dial to press or pressing lock, touching hook on its dead bolt all is folk prescriptions to (to outside window or in window), contact area is little, if there is the people side or window inboard to push this touching hook and just window can be opened outside window, theftproof performance is bad.

The purpose of this utility model provides the good new type auto sash lock of a kind of theftproof.

In order to achieve the above object, realize like this on the utility model, comprise lock housing and snap close; Being provided with a boss on rectangular lock housing, is a groove at the back side of boss, it is characterized in that: be provided with a support on boss, a recess is arranged above the pressing plate, pressing plate is located in the groove, and the recess two ends and the support on the boss of pressing plate are hinged; Two double hooks are " 5 " font, and they are located on the boss by pivot pin respectively, are respectively equipped with torque spring on two pivot pins; The recess of pressing plate is stuck in the end of double hook on one side, and when closing window, the other end of double hook hooks snap close.Be provided with a block on the boss of lock housing, an end of above-mentioned two torque springs is supported on the block, and the other end is supported on the double hook respectively.Be provided with the plastics button of band nut at the two ends of lock housing.

The utility model compared with prior art has following advantage:

1, theftproof performance is good;

2, simple in structure, cost is low;

3, operation, easy for installation.

Fig. 1 is a front view of the present utility model;

Fig. 2 is a vertical view of the present utility model;

Fig. 3 is a upward view of the present utility model;

Fig. 4 is a rear elevation of the present utility model;

Fig. 5 is the schematic diagram of the utility model unlocking condition;

Fig. 6 shuts the schematic diagram of state for the utility model.

Below in conjunction with drawings and Examples the utility model is done further detailed description:

Shown in Fig. 1,2,3,4,5,6, comprise lock housing (1) and snap close (11); Rectangular a boss (6) arranged, at the back side of boss (6) is a groove (10), is provided with a support (2) on boss (6), and pressing plate has a recess above (3), pressing plate (3) is located in the groove (10), and the support (2) on the recess two ends of pressing plate (3) and the boss (6) is hinged; Two double hooks (4) all are " 5 " font, and they are located on the boss (6) by pivot pin (5) respectively, are respectively equipped with torque spring (8) on two pivot pins (5); The recess of pressing plate (3) is stuck in the end of double hook (4) on one side, and when closing window, the other end of double hook (4) hooks snap close (11).Be provided with a block (9) on the boss (6) of lock housing (1), an end of above-mentioned two torque springs (8) is supported on the block (9), and the other end is supported on respectively on the double hook (4).Be provided with the plastics button (7) of band nut at the two ends of lock housing (1), owing to use plastics buttons (7), during the dress lock, need not to drill through the aluminum window outside, in order to avoid, install also more convenient because infiltration outside window makes the sash lock corrosion and damage.

Claims

1, a kind of new type auto sash lock comprises lock housing and snap close; On rectangular lock housing, be provided with a boss, at the back side of boss is a groove, it is characterized in that: be provided with a support (2) on boss (6), pressing plate has a recess above (3), pressing plate (3) is located in the groove (10), and the support (2) on the recess two ends of pressing plate (3) and the boss (6) is hinged; Two double hooks (4) all are " 5 " font, and they are located on the boss (6) by pivot pin (5) respectively, are respectively equipped with torque spring (8) on two pivot pins (5); The recess of pressing plate (3) is stuck in the end of double hook (4) on one side, and when closing window, the other end of double hook (4) hooks snap close (11).

2, new type auto sash lock according to claim 1 is characterized in that: be provided with a block (9) on the boss (6) of lock housing (1), an end of above-mentioned two torque springs (8) is supported on the block (9), and the other end is supported on respectively on the double hook (4).

3, new type auto sash lock according to claim 1 and 2 is characterized in that: the plastics button (7) that is provided with the band nut at the two ends of lock housing (1).