CN202031402U

CN202031402U - Anti-theft window lock with contact-pressure type lock tongue structure

Info

Publication number: CN202031402U
Application number: CN2011200657462U
Authority: CN
Inventors: 胡耀宗
Original assignee: TIANJIN ANJU TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: TIANJIN ANJU TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2011-03-14
Filing date: 2011-03-14
Publication date: 2011-11-09
Anticipated expiration: 2021-03-14

Abstract

The utility model discloses an anti-theft window lock with a contact-pressure type lock tongue structure, which comprises a lock hole piece fixed on a first window frame, and a lock cylinder fixed on a second window frame, wherein a lock tongue component is arranged between the lock hole piece and the lock cylinder, is of a contact-pressure type lock tongue structure, and comprises a fixed support, a lock tongue, a brake stopper and a connecting rod, and the lock tongue is hinged with the fixed support through a lock tongue shaft; a first torsion spring is arranged on the lock tongue shaft, and one end of the torsion spring is propped on the fixed support; the other end of the torsion spring is fixed on the lock tongue, and the brake stopper is hinged with the fixed support through a stopper shaft; a second torsion spring is arranged on the stopper shaft, and one end of the second torsion spring is propped on the fixed support; the other end of the second torsion spring is fixed on the brake stopper, and the lock tongue is contacted with the brake stopper; and meshed tooth slots are arranged at a contact part of the lock tongue and the brake stopper. The lock tongue utilizes the matching action of the connecting rod, the meshed tooth slots and the torsion springs to achieve rotation, and the lock tongue is rotated into a lock hole or moved back from the lock hole, so that the lock hole piece is not easy to deform, and thus the service life of the lock is prolonged.

Description

Theft-proof window lock with press-type dead bolt structure

Technical field

The utility model relates to a kind of Theft-proof window lock, relates in particular to a kind of Theft-proof window lock with press-type spring bolt mechanism.

Background technology

At present, the spring bolt mechanism of Theft-proof window lock adopts direct insertion dead bolt structure mostly, its structural principle as depicted in figs. 1 and 2, wherein, Fig. 1 shows the locking states of this Theft-proof window lock, the open mode that Fig. 2 shows this Theft-proof window lock, this Theft-proof window lock mainly comprises the lock hole element 20 that is installed in second window frame, 50 1 sides, dead bolt structure member and lock core 60 etc., the dead bolt structure member is made of dead bolt 31, compression spring 32, pull bar 33, baffle plate 34 and shell fragment 35, and dead bolt 31 is connected with lock core 60 by pull bar 33.When first window frame 10 pushes second window frame 50 with lock hole element 20, when carrying out locking states, be used to overcome spring force must for earlier 20 1 bigger power of lock hole element, and the inclined-plane by dead bolt 31 squeeze dead bolt 31 and open from acting on the dead bolt 31.Then after lock hole element 20 put in place, dead bolt 31 inserted in the lockhole of lock hole element 20 under the effect of compression spring 32, thereby finishes locking states.Can obviously find out from accompanying drawing 2, when lock hole element 20 is finished last locking, because the thickness of slab of lock hole element 20 is thinner, in the prolonged and repeated effect that is subjected to from dead bolt 31 (being the elastic force of compression spring 33), cause lock hole element 20 distortion can not enter second window frame 60, lockset can not be used.

The utility model content

At above-mentioned prior art, the utility model provides a kind of Theft-proof window lock with press-type dead bolt structure, the utility model dead bolt is rational in infrastructure, be to utilize the teeth groove of a connecting rod, pair of meshing and the rotation that two torque spring interoperations are realized dead bolt, lock hole element is not yielding, has prolonged application life.

In order to solve the problems of the technologies described above, the utlity model has the technical scheme that the Theft-proof window lock of press-type dead bolt structure is achieved is: comprise the lock hole element that is fixed on first window frame, be fixed on the lock core on second window frame, between described lock hole element and the described lock core dead bolt parts are housed, described dead bolt parts are press-type dead bolt structure, and described dead bolt parts comprise fixed support, dead bolt, stopper tab and connecting rod; Described dead bolt is hinged by a dead bolt axle and described fixed support, and described dead bolt axle is provided with first torque spring, and described torque spring one end is against on the described fixed support, and the other end is fixed on the described dead bolt; Described stopper tab is hinged by block shaft and described fixed support, and described block shaft is provided with second torque spring, and described second torque spring, one end is against on the described fixed support, and the other end is fixed on the described stopper tab; Described dead bolt contacts with described stopper tab, is provided with the teeth groove of engagement in described dead bolt and described stopper tab contact site.

The utlity model has the Theft-proof window lock of press-type dead bolt structure, wherein, the end that described dead bolt is positioned at described lock hole element is provided with the projection that cooperates with the lockhole of described lock hole element.

Compared with prior art, the beneficial effects of the utility model are:

Because the dead bolt structure in the utility model Theft-proof window lock is to adopt the press-type structure, mainly be to utilize the interoperation of the teeth groove of connecting rod, engagement and torque spring to realize the rotation of dead bolt, and the rotation by dead bolt, make in its lockhole that changes lock hole element over to, therefore lock hole element is not yielding, has prolonged the application life of lockset.

Description of drawings

Fig. 1 is a kind of direct insertion Theft-proof window lock locking states schematic diagram in the prior art;

Fig. 2 is a Theft-proof window lock open mode schematic diagram shown in Figure 2;

Fig. 3 is the Theft-proof window lock locking states schematic diagram that the utlity model has press-type dead bolt structure;

Fig. 4 is a Theft-proof window lock open mode schematic diagram shown in Figure 3;

Fig. 5 is the vertical view of state shown in Figure 4.

Among the figure:

10---first window frame 20---

lock hole element

31,41---dead bolts

32---compression spring 33---

pull bar

34,44---baffle plates

35---shell fragment 42---dead bolt axle 43---first torque springs

44---top board 45---stopper tab 46---block shaft

47---second torque spring 48---connecting rod 49---side plates

50---second window frame 60---lock core

The specific embodiment

Below in conjunction with the specific embodiment the utility model is done to describe in further detail.

The utility model mainly is the operating principle according to lockset, change the direct insertion structure of prior art sash lock dead bolt, adopt a kind of lock hole element that utilizes to press dead bolt projection (groove side mouth) position, thereby the boss on the dead bolt is screwed in the lockhole of lock hole element, make the sash lock locking; In like manner,, make it drive the engagement of dead bolt disengaging and stopper tab, the projection of dead bolt is withdrawed from from the lockhole of lock hole element, make dead bolt return to opening by the counter-rotating of connecting rod pulling stopper tab.

As shown in Figure 3, the utlity model has the Theft-proof window lock of press-type dead bolt structure, comprise the lock hole element 20 that is fixed on first window frame 10, be fixed on the lock core 60 on second window frame 50, between described lock hole element 20 and the described lock core 60 the dead bolt parts are housed, described dead bolt parts are press-type dead bolt structure, and described dead bolt parts comprise fixed support, dead bolt 41, stopper tab 45 and connecting rod 48; Described dead bolt 41 is hinged with described fixed support by a dead bolt axle 42, described fixed support comprises a biside plate 49 and a top board 44, described dead bolt axle 42 is provided with first torque spring 43, and described torque spring 43 1 ends are against on the described fixed support, and the other end is fixed on the described dead bolt 41; Described stopper tab 45 is hinged, shown in Figure 5 by block shaft 46 and described fixed support, and described block shaft 46 is provided with second torque spring 47, and described second torque spring, 47 1 ends are against on the described fixed support, and the other end is fixed on the described stopper tab; Described dead bolt 41 contacts with described stopper tab 45, is provided with the teeth groove of engagement in described dead bolt 41 and described stopper tab 45 both contacts site.The end that described dead bolt 41 is positioned at described lock hole element 20 is provided with the projection that cooperates with the lockhole of described lock hole element 20.

The pass closed procedure of the utility model Theft-proof window lock is: as shown in Figure 3, push-and-pull first window frame 10 advances lock hole element 20 second window frame 50 and makes its (to pressing down) touch the projection of dead bolt 41, and the projection on the described dead bolt 41 is that the axle center is rotated counterclockwise with dead bolt axle 42; Meanwhile, described stopper tab 45 props up the outline of dead bolt 41 under the effect of second torque spring 47, when the projection on the described dead bolt 41 screws in the lockhole on the lock hole element 20, described stopper tab 45 meshes just with the teeth groove of described dead bolt 41, described stopper tab 45 control dead bolts 41 can not turn round clockwise, and be the sash lock locking states this moment.

The process that the utility model Theft-proof window lock is opened is: as shown in Figure 4, the twisting key, lock core 60 is produced to be reversed, thereby drivening rod 48, by connecting rod 48 pulling stopper tabs 45, described stopper tab 45 is that the axle center clockwise rotates with block shaft 46, when stopper tab 45 rotates to the teeth groove disengaging that is meshed with described dead bolt 41, described dead bolt 41 under the effect of first torque spring 43, the clockwise direction commentaries on classics of circling round; After dead bolt 41 withdrawed from from the lockhole of lock hole element 20, dead bolt 41 returned to initial opening again.

Although in conjunction with figure the utility model is described above; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; under the situation that does not break away from the utility model aim, can also make a lot of distortion, these all belong within the protection of the present utility model.

Claims

1. Theft-proof window lock with press-type dead bolt structure, comprise the lock hole element (20) that is fixed on first window frame (10), be fixed on the lock core (60) on second window frame (50), between described lock hole element (20) and the described lock core (60) the dead bolt parts be housed, it is characterized in that:

Described dead bolt parts are press-type dead bolt structure, and described dead bolt parts comprise fixed support, dead bolt (41), stopper tab (45) and connecting rod (48); Described dead bolt (41) is hinged by a dead bolt axle (42) and described fixed support, and described dead bolt axle (42) is provided with first torque spring (43), and described torque spring (43) one ends are against on the described fixed support, and the other end is fixed on the described dead bolt (41); Described stopper tab (45) is hinged by block shaft (46) and described fixed support, described block shaft (46) is provided with second torque spring (47), described second torque spring (47) one ends are against on the described fixed support, and the other end is fixed on the described stopper tab; Described dead bolt (41) contacts with described stopper tab (45), is provided with the teeth groove of engagement in described dead bolt (41) and both contacts site of described stopper tab (45).

2. according to the described Theft-proof window lock with press-type dead bolt structure of claim 1, it is characterized in that: the end that described dead bolt (41) is positioned at described lock hole element (20) is provided with the projection that cooperates with the lockhole of described lock hole element (20).