CN201187189Y

CN201187189Y - Thin type rolling shutter door lock

Info

Publication number: CN201187189Y
Application number: CNU2008200443480U
Authority: CN
Inventors: 程英宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-02-28
Filing date: 2008-02-28
Publication date: 2009-01-28
Anticipated expiration: 2018-02-28

Abstract

The utility model discloses a thin rolling door lock which comprises a lock shell and a shift block gear arranged on the lock shell, wherein, a left push-pull rod and a right push-pull rod are arranged on the upper side and the lower side of the shift block gear in the lock shell; a section of gear rack meshed with the shift block gear is arranged on the left and the right push-pull rods; one end of the left push-pull rod and one end of the right push-pull rod penetrate through the left end part and the right end part of the lock shell; the outer ends of the left and the right push-pull rods are matched with locked grooves on the two sides of the lower part of a rolling door through lever pins; a square hole is formed on the shift block gear; and an external lock core matched with the shape of square hole is inserted into the square hole for driving the shift block gear to rotate. The thin rolling door lock has the advantages of simple and reasonable structure, convenient use and long service life, and can be widely applicable to rolling doors.

Description

A kind of slim rolling gate door lock

Technical field

The utility model relates to a kind of door lock, particularly a kind of slim rolling gate door lock.

Background technology

At present, a kind of rolling gate door lock is arranged, as shown in Figure 1, comprise lock housing 1 ' and the shifting block gear 2 ' that is installed on the lock housing 1 ', in lock housing 1 ', be positioned at the following of shifting block gear 2 ', the top is provided with a left side, right pull bar 3 ', 4 ', a described left side, right pull bar 3 ', 4 ' is provided with the one section tooth bar 5 ' that is meshed with shifting block gear 2 ', this left side, right pull bar 3 ', 4 ' one end passes lock housing a 1 ' left side, outside the right part, its outer end cooperates by the locked groove of lever pin with both sides, rolling-gate bottom, on shifting block gear 2 ', be provided with hole 21 ', as shown in Figure 2, this hole 21 ' wherein two limits is a parallel lines, the two other limit is an arc, have the outer lock gall core that is complementary with hole 21 ' shape to insert and drive the 2 ' rotation of shifting block gear in it, the courage core drives shifting block gear 2 ' and rotates a linkage left side after turning an angle in key inserts lockhole, right pull bar 3 ', 4 ' inwardly or outer flexible unblank and shut realizing; The hole 21 ' of this shape and the courage core that cooperates with it are after a period of time is used in friction, have wearing and tearing each other, the gap of Cun Zaiing increases gradually with the growth of service time between the two, particularly the arch section wearing and tearing are the most serious, finally cause this lock moving process to have some setbacks, even stuck, cause door lock to damage; At the existing shortcoming of said structure, be necessary to make improvements.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model provides a kind of slim rolling gate door lock of rational in infrastructure, easy to use and long service life.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of slim rolling gate door lock, comprise lock housing and the shifting block gear that is installed on the lock housing, the upper and lower side who is positioned at the shifting block gear in lock housing is provided with left and right pull bar, described left and right pull bar is provided with the one section tooth bar that is meshed with the shifting block gear, this left and right pull bar one end passes outside the left and right end of lock housing, its outer end cooperates by the locked groove of lever pin with both sides, rolling-gate bottom, described shifting block gear is provided with square opening, has the outer lock gall core that is complementary with the square opening shape to insert and drives the rotation of shifting block gear in it.

In the utility model, be provided with the balance weight of annular between described shifting block gear and the lock housing.

The beneficial effects of the utility model are: because the utility model changes hole set on the shifting block gear into square opening, adopt the square outer lock gall core that is complementary with the square opening shape to insert and drive the rotation of shifting block gear in it, such structure makes both engage tightlyer, courage core and the friction between the two of shifting block gear in the rotation process have been reduced, can there be excessive gap between the two after long-time the use, people are unblanking and to shut process very smooth and easy, laborsaving, both be convenient to people and used, prolonged the application life of product again.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the structural representation of existing product;

Fig. 2 is the structural representation of shifting block gear in the existing product;

Fig. 3 is a structural representation of the present utility model;

Fig. 4 is the structural representation of shifting block gear in the utility model.

The specific embodiment

With reference to Fig. 3, a kind of slim rolling gate door lock, comprise lock housing 1 and the shifting block gear 2 that is installed on the lock housing 1, the upper and lower side who is positioned at shifting block gear 2 in lock housing 1 is provided with left and

right pull bar

3,4, described left and

right pull bar

3,4 is provided with the one section tooth bar 5 that is meshed with shifting block gear 2, these left and

right pull bar

3,4 one ends pass outside the lock housing 1 left and right end, its outer end cooperates by the locked groove of lever pin with both sides, rolling-gate bottom, described shifting block gear 2 is provided with square opening 21, has the outer lock gall core that is complementary with square opening 21 shapes to insert and drives 2 rotations of shifting block gear in it.

Because the utility model changes hole set on the shifting block gear 2 into square opening 21, adopt the square outer lock gall core that is complementary with square opening 21 shapes to insert and drive 2 rotations of shifting block gear in it, such structure makes both engage tightlyer, courage core and shifting block gear 2 friction between the two in the rotation process have been reduced, can there be excessive gap between the two after long-time the use, people are unblanking and to shut process very smooth and easy, laborsaving, both have been convenient to people and have used, and have prolonged the application life of product again.

Original shifting block gear 2 normal zinc alloy material that adopt are made, and as shown in Figure 2, this material hardness is poor, easy to wear, need add the system reinforcing rib in its bottom, make extrusion process numerous and diverse like this, improved cost of production, the utility model adopts the material of iron as shifting block gear 2, as shown in Figure 4, improved the hardness of shifting block gear 2 like this, reduced wearing and tearing, and do not needed in its bottom reinforcing rib to be set again, simplify production technology, reduced the cost of product; Because wearing and tearing are little, can make shifting block gear 2 more firm in rotation process, people use more convenient, and application life is also longer.

In the utility model, be provided with the balance weight 6 of annular between shifting block gear 2 and the lock housing 1, can make more firm being installed in the lock housing 1 of shifting block gear 2, make it more firm in rotation process by the balance weight 6 that adds, can not be offset, guarantee product stability in use.

Simple and reasonable for structure, the easy to use and long service life of the utility model is a kind of slim rolling gate door lock that is widely used on the rolling-gate.

Claims

1. slim rolling gate door lock, comprise lock housing (1) and be installed in shifting block gear (2) on the lock housing (1), in lock housing (1), be positioned at the following of shifting block gear (2), the top is provided with a left side, right pull bar (3,4), a described left side, right pull bar (3,4) be provided with the one section tooth bar (5) that is meshed with shifting block gear (2), this left side, right pull bar (3,4) end passes lock housing (a 1) left side, outside the right part, its outer end cooperates by the locked groove of lever pin with both sides, rolling-gate bottom, it is characterized in that: described shifting block gear (2) is provided with square opening (21), has the outer lock gall core that is complementary with square opening (21) shape to insert and drives shifting block gear (2) rotation in it.

2. a kind of slim rolling gate door lock according to claim 1 is characterized in that being provided with between described shifting block gear (2) and the lock housing (1) annular balance weight (6).