CN2381734Y

CN2381734Y - Lock on door or window

Info

Publication number: CN2381734Y
Application number: CN 99215658
Authority: CN
Inventors: 谢耀洪
Original assignee: Hehe Plastics & Rubber Hardware Products Factory Dali Town Nanhai City
Current assignee: Hehe Plastics & Rubber Hardware Products Factory Dali Town Nanhai City
Priority date: 1999-07-27
Filing date: 1999-07-27
Publication date: 2000-06-07
Anticipated expiration: 2009-07-27

Abstract

The utility model relates to a lock on doors or windows, which comprises a lock body, a lock bolt driven by the lock body and a lock bolt clamping piece which can clamp the lock bolt, wherein, the lock body is composed of an upper housing, a lower housing, an upper rack bar, a lower rack bar, a gearwheel, a pinion wheel and a rotating handle. The utility model has the advantage that one lock body can simultaneously lock both sides of a window, and the control of the opening and closing actions of the lock in a long distance can be realized through the movement of the lock bolt driven by the rack bars, which is convenient to operation.

Description

A kind of window lock

The utility model relates to a kind of window lock.

Existing sash lock can only be locked a bit of window or door limit, and lock body need be against locking bolt, and this kind window is latched in following shortcoming:

1, can only lock window or door limit a bit, after this point is destroyed, just can open window or, therefore,

Its theftproof performance deficiency.

2, only lock window or door limit a bit, under the effect of external force, window or door easily curve and decrease along this point

Bad.

Goal of the invention of the present utility model is to provide a kind of window lock, easy to operate that can lock window or door limit simultaneously at 2.

The utility model is to realize like this, comprise lock body, locking bolt by the lock body drive, the locking bolt card-bit part that locking bolt is blocked, wherein lock body is by upper shell, lower house, upper rack, following tooth bar, gear wheel, pinion, turning handle constitutes, gear wheel is positioned at the top of upper rack and loose joint in upper shell, between lower house, the both sides up and down of upper rack are equipped with tooth, the top of gear wheel and upper rack is meshing, pinion is positioned at upper rack, also meshing with two tooth bars respectively between following tooth bar, upper shell, lower house is provided with the moving part with the Left-wing Federation, the guide groove that right STATEMENT OF FEDERALLY SPONSORED matches, turning handle and gear wheel join, upper rack, following tooth bar and locking bolt join.

During use, lock body is loaded on window or the door, the locking bolt at corresponding lock body two ends is contained in the locking bolt card-bit part 2 points up and down on window frame or doorframe limit, pull turning handle, gear wheel rotates, drive the upper rack move left and right, upper rack drives tooth bar move left and right down by pinion, under the reverse drive of pinion, upper rack, following tooth bar is done oppositely to move mutually, the locking bolt that drives the lock body two ends is done telescopic moving simultaneously, and when locking bolt was made stretching routine, locking bolt inserted the locking bolt card-bit part, with window or the locking of door limit, when locking bolt was made contractile motion, locking bolt was deviate from the locking bolt card-bit part, and window or door are opened.

Compared with the prior art the utility model owing to adopted the double rack transmission, thereby has had the advantage that a lock body can be locked 2 on window or door limit simultaneously, and by the motion of rack drives locking bolt, can realize long action apart from the gauge tap lock, has made things convenient for operation.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the stereogram of lock body;

Fig. 3 is the partial enlarged drawing of locking bolt card-bit part.

Now in conjunction with the accompanying drawings and embodiments the utility model is described in further detail:

As shown in the figure, the utility model is mainly by lock body, locking bolt 2 by the lock body drive, the locking bolt card-bit part 3 that locking bolt 2 is blocked constitutes, wherein lock body 1 is by upper shell 4, lower house 5, upper rack 6, following tooth bar 7, gear wheel 8, pinion 9, turning handle 10 constitutes, gear wheel 8 is positioned at the top of upper rack 6 and loose joint in upper shell 4,5 of lower houses, the both sides up and down of upper rack 6 are equipped with tooth 11, gear wheel 8 is meshing with the top of upper rack 6, pinion 9 is positioned at upper rack 6,7 of following tooth bars are also meshing with two tooth bars respectively, upper shell 4, lower house 5 is provided with and upper rack 6, the guide groove 12 that following tooth bar 7 matches, turning handle 10 joins upper rack 6 with gear wheel 8, following tooth bar 7 joins with locking bolt 2.

Here, be provided with seat 13 on upper shell 4, the effect of seat 13 is that handle 10 is positioned on the upper shell 4.

The two ends of upper rack 6, following tooth bar 7 are provided with locking bolt socket 14, also are provided with the hole 15 of traversing socket 14, are provided with spring and hoodle 16 in the hole 15, and an end of corresponding locking bolt 2 is provided with bayonet socket 17.During use, an end that has bayonet socket 17 on the locking bolt 2 is inserted locking bolt socket 14, make hoodle 16 with bayonet socket 17 location, locking bolt 2 promptly is fixed on the tooth bar like this, when taking out locking bolt 2, by hole 15 hoodle 16 is pushed up from bayonet socket 17, extracts locking bolt 2 then out and gets final product.Adopt said structure to change different locking bolt 2 in response to needs.

Be provided with the guide groove 18 that matches with locking bolt 2 at upper shell 4, lower house 5, to make things convenient for the assembling of locking bolt 2.

Do not bend when guaranteeing that the long distance of locking bolt 2 is mobile, on locking bolt 2, be provided with guide groove 19, on guide groove 19, be provided with fixed guide 20.During use, guide rail 20 is fixed on the window, has so just prevented locking bolt 2, insufficient strength and bending because of oversize.

Here, locking bolt card-bit part 3 is provided with two or more bayonet socket 21.As shown in Figure 3, during use, by the card-bit part on the locking bolt 2 22 window or door 24 are positioned on the different bayonet socket 21 of the locking bolt card-bit part 3 on window or the doorframe 23, make window or door 24 be in the contract fully shape or not exclusively close shape, when window or door are in when not exclusively closing shape, window or door can be fixed on window or the doorframe, simultaneously, leave the gap again, make window or door have certain gas permeability.

Claims

1, a kind of window lock, comprise lock body, locking bolt by the lock body drive, the locking bolt card-bit part that locking bolt is blocked, it is characterized in that lock body is by upper shell, lower house, upper rack, following tooth bar, gear wheel, pinion, turning handle constitutes, gear wheel is positioned at the top of upper rack and loose joint in upper shell, between lower house, the both sides up and down of upper rack are equipped with tooth, the top of gear wheel and upper rack is meshing, pinion is positioned at upper rack, also meshing with two tooth bars respectively between following tooth bar, upper shell, lower house is provided with the moving part with the Left-wing Federation, the guide groove that right STATEMENT OF FEDERALLY SPONSORED matches, turning handle and gear wheel join, upper rack, following tooth bar and locking bolt join.

2, window lock according to claim 1 is characterized in that the two ends of upper rack, following tooth bar are provided with the locking bolt socket, also is provided with the hole of traversing socket, is provided with spring and hoodle in the hole, and an end of corresponding locking bolt is provided with bayonet socket.

3, window lock according to claim 1 is characterized in that being provided with guide groove on locking bolt, is provided with fixed guide on guide groove.

4, window lock according to claim 1 is characterized in that the locking bolt card-bit part is provided with two or more bayonet sockets.