CN202064729U

CN202064729U - Door lock

Info

Publication number: CN202064729U
Application number: CN2011200563376U
Authority: CN
Inventors: 张曰明
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-02-28
Filing date: 2011-02-28
Publication date: 2011-12-07
Anticipated expiration: 2021-02-28

Abstract

The utility model provides a door lock, and belongs to a lockset. The door lock comprises a housing, wherein a flat slot hole is formed on the inner end surface of a gear mounted in the middle of the housing; the flat slot hole is communicated with a round groove on the inner side of the flat slot hole; the outer end surface of the gear is exposed out of the housing; an internally-opening slot is formed on the outer end surface of the gear; a first gear rack and a second gear rack are meshed with two sides of the gear respectively; the lower end of the first gear rack is connected with a lower lock lever; the upper end of the second gear rack is connected with an upper lock lever; the door lock further comprises a lock cover; the inner end of a lock tongue on a lock core mounted on the lock cover adopts a flat head corresponding to the flat slot hole in shape; the width of the lock tongue on the rear side of the flat head is smaller than that of the flat head; and a first spring outside the lock tongue is mounted between the gear and the lock core. The door lock is reasonable in structure, can be unlocked indoors, and can be locked conveniently; and under the condition that the pickproof performance is guaranteed, the using effect is improved. The door lock is particularly suitable for side hung doors such as a sash door and the like.

Description

A kind of door lock

Technical field

The utility model provides a kind of lockset, the lockset on especially a kind of vertical hinged door.

Background technology

At present, the lockset on the vertical hinged door is common door lock, has only a lock point, stressed the concentrating of lock point, and easily destroyed, theftproof performance is poor.The Chinese patent publication number of applicant's design is the vertical hinged door Theft-proof handle locking device of CN201258638, has realized 2 lockings, and part has solved this problem.But this apparatus structure complexity, sensation inconvenience when indoor unlatching, locking, result of use is relatively poor.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of door lock, to improve its result of use.

The utility model is to realize like this, a kind of door lock, it has housing, the inner face of the gear that install at the housing middle part has the flat slotted eye, the flat slotted eye communicates with its inboard circular trough, the outer face of gear be exposed to the outside of housing and have in open slot, the gear both sides are engaged with first tooth bar and second tooth bar respectively, the first tooth bar lower end links together with following locking bar, second tooth bar upper end links together with last locking bar, and it also has locking closure, and the inner of the dead bolt on the lock core of installing on the locking closure is shape and the corresponding flat head of flat slotted eye, the width of the dead bolt of flat head rear side is less than the width of flat head, and the dead bolt outside has first spring to be installed between gear and the lock core.

At described first tooth bar with pressing plate is arranged respectively above second tooth bar, second spring is arranged respectively between pressing plate and the locking closure.

The installation cylindrical shell is arranged on described housing or locking closure.

The end of locking bar and following locking bar has nut respectively on described.

Adopt the door lock of said structure, rational in infrastructure, indoor unlatching, locking conveniently under the situation that guarantees theftproof performance, have improved result of use.Be specially adapted to be installed on the vertical hinged doors such as glass door.

Description of drawings

Fig. 1 is the schematic diagram that the utility model removes the part-structure behind the locking closure.

Fig. 2 is the left view of the utility model structure.

Fig. 3 is the vertical view of the dead bolt structure in the utility model.

The specific embodiment

The embodiment that provides below in conjunction with accompanying drawing illustrates concrete structure of the present utility model.

As shown in drawings, a kind of door lock of the utility model, it has housing 2, the inner face of the gear 5 that install at the housing middle part has flat slotted eye 6, the flat slotted eye communicates with its inboard circular trough 17, the outer face of gear be exposed to the outside of housing and have in open slot 15, the gear both sides are engaged with first tooth bar 9 and second tooth bar 7 respectively, the first tooth bar lower end links together with following locking bar 8, second tooth bar upper end links together with last locking bar 1, it also has locking closure 14, the inner of dead bolt 11 on the lock core of installing on the locking closure 12 is the corresponding flat head 16 of shape and flat slotted eye, the width of the dead bolt of flat head rear side is less than the width of flat head, and dead bolt 11 outsides have first spring 10 to be installed between gear 5 and the lock core 12.

The inner of described dead bolt 11 is the corresponding flat head 16 of shape and flat slotted eye, the outer contoured shape that is meant flat head is identical with the sector hole shape, perhaps the outer contoured shape of flat head is close with the sector hole shape, flat head can be inserted in the flat slotted eye, when guaranteeing that dead bolt rotates, gear is being driven to rotate.

Described lock core can adopt lock cylinder, and lockhole is arranged on the lock core.

During use, this door lock is installed in the middle part of vertical hinged door door body, last locking bar upper end connects extension bar to upper door frame, sticks in the lock point groove of upper door frame, and formation is locked a little.Following locking bar lower end connects another extension bar to lower door frame or ground, sticks in the lock point groove on lower door frame or ground, forms lock point down.Lock core is towards outdoor.At common state, the flat head on the dead bolt is in the flat slotted eye on the gear.In lock core, insert key, come transmitting gear, and then make progress respectively, move down, make upper and lower locking bar upper and lower mobile, finish and open or lock out action by gear driven two tooth bars by rotating lock tongue.And will be when indoor unlatching or locking, open in the slot 15 in one plate can being injected, firmly inboard to gear, make gear overcome the elastic force of first spring and move to the lock core direction, flat head on the dead bolt enters in the circular trough on the gear like this, at this moment, rotate the plate driven gear and rotate, direct geared drives two tooth bars and makes progress respectively, moves down.This moment, dead bolt was motionless.

Described first tooth bar 9 and above second tooth bar 7 pressing plate 4 is arranged respectively has second spring 13 respectively between pressing plate and the locking closure 14.Pressing plate and spring can play the guiding function that first, second tooth bar moves, and prevent that it from takeofing and break away from gear.

The cylindrical shell 3 of installation is arranged on described housing 2 or locking closure 14.Can pass screw at the installation cylindrical shell, realize the installation of this door lock on vertical hinged door.Second spring 13 can be enclosed within the outside that cylindrical shell is installed.

The end of locking bar 1 and following locking bar 8 has nut 18 respectively on described.Extension bar can be installed on the upper and lower locking bar by nut.

Can directly make one or hinged between first tooth bar, second tooth bar and the upper and lower locking bar.

Claims

1. door lock, it is characterized in that, it has housing (2), the inner face of the gear (5) that install at the housing middle part has flat slotted eye (6), the flat slotted eye communicates with its inboard circular trough (17), the outer face of gear be exposed to the outside of housing and have in open slot (15), the gear both sides are engaged with first tooth bar (9) and second tooth bar (7) respectively, the first tooth bar lower end links together with following locking bar (8), second tooth bar upper end links together with last locking bar (1), it also has locking closure (14), the inner of dead bolt (11) on the lock core of installing on the locking closure (12) is shape and the corresponding flat head of flat slotted eye (16), the width of the dead bolt of flat head rear side is less than the width of flat head, and dead bolt (11) outside has first spring (10) to be installed between gear (5) and the lock core (12).

2. door lock as claimed in claim 1 is characterized in that, at described first tooth bar (9) with above second tooth bar (7) pressing plate (4) is arranged respectively, and second spring (13) is arranged respectively between pressing plate and the locking closure (14).

3. door lock as claimed in claim 1 or 2 is characterized in that, on described housing (2) or locking closure (14) installation cylindrical shell (3) is arranged.

4. door lock as claimed in claim 1 or 2 is characterized in that, the end of locking bar (1) and following locking bar (8) has nut (16) respectively on described.