CN2427575Y

CN2427575Y - Theft-proof lock for roller door

Info

Publication number: CN2427575Y
Application number: CN 00222057
Authority: CN
Inventors: 贺全安; 张大庭
Original assignee: SITONG METALLURGICAL CO CHONGQING CITY
Current assignee: SITONG METALLURGICAL CO CHONGQING CITY
Priority date: 2000-01-08
Filing date: 2000-01-08
Publication date: 2001-04-25
Anticipated expiration: 2010-01-08

Abstract

The utility model relates to a theft-proof lock for a rolling door, wherein, a lock head is fixed on a bottom beam of the rolling door; a lock bolt is controlled by the lock head to stretch from left to right and is provided with two vertically-crossed parts with an I shape; a lock plate which is provided with a convex hole is arranged above a lock case. The theft-proof lock for the rolling door has the advantages of simple structure, convenient fabrication, low cost, safety, firmness, good invisibility and beautiful appearance under the premise that an original unlocking mode is not changed, and can effectively prevent the rolling door from prizing.

Description

Burglary-proofing lock for rolling door

The utility model relates to a kind of theftproof lock, relates in particular to the theftproof lock that is applied to rolling-gate.

Existing rolling-gate lock box is exposed to ground, and is both dangerous attractive in appearance, inconvenient again.Chinese patent 96243298.9 disclosed " improvement of rolling gate door lock ", it with the both sides of tapered end respectively establish one by tapered end control can about flexible strip dead bolt, it is corresponding higher that dead bolt need be provided with two costs, complex structure; The bottom of strip dead bolt also links L shaped dead bolt, and its direction is respectively to the left and right sides, so easily pries open L shaped dead bolt from the side, and is dangerous.

The purpose of this utility model is in order to overcome the deficiencies in the prior art, under the situation of the mode of unblanking that does not change original door lock, to reduce cost, and lock box good concealment, safety be firmly attractive in appearance, prevent that rolling-gate from being prized very effectively.

In order to achieve the above object, the utility model by the following technical solutions: tapered end is fixed on the bottom girder of rolling-gate, and dead bolt is by flexible about tapered end control, dead bolt be the two parts that intersect vertically form " Shape is provided with jam plate above lock box, jam plate has the hole of convex, the male ports bottom of jam plate and dead bolt "

" the shape bottom shape is similar.Dead bolt is provided with latch hook, and bumper is fixed on the angle steel of bottom girder.The bottom lengths of dead bolt is smaller or equal to the maximum caliber of jam plate male ports, and greater than the male ports lowest calibre, the lowest calibre of jam plate male ports is wider than the thickness of dead bolt.The lock box bottom has reinforced hole.Lock box and jam plate are fixed with union piece.

The utility model with dead bolt be designed to intersect vertically two parts form "

" shape, jam plate is set above lock box, jam plate has male ports, can effectively rolling-gate and jam plate be connected to become an integral body, and testing the antitheft power of deciding of this rolling-gate by the power table is 4.8 horsepowers.Dead bolt is provided with latch hook, and bumper is fixed on the angle steel of bottom girder, can prevent that lock box is embedded in underground with the cement pouring, make rolling-gate overall appearance and safety firmly from prying open.Dead bolt only need be provided with one, and is simple in structure, reduced cost.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the structural representation of burglary-proofing lock for rolling door embodiment one.

Fig. 2 is dead bolt embodiment one structural representation.

Fig. 3 is jam plate embodiment one structural representation.

Fig. 4 is the vertical view of dead bolt embodiment two.

Fig. 5 is the vertical view of jam plate embodiment two.

Embodiment one

Lock box 1 is embedded in underground, it and ground is fixed from reinforced hole 3 with two setscrews, again with the cement pouring, with the fixing jam plate 2 of screw, jam plate 2 has the hole of convex above lock box 1.The male ports bottom is a rectangle, and tapered end is fixed on the rolling-gate bottom girder, and dead bolt 5 is by flexible about tapered end control, dead bolt 5 for the two parts that intersect vertically form " " shape, the lower end is a rectangle, and dead bolt 5 middle parts are provided with latch hook 6, and bumper 4 is fixed on the angle steel of bottom girder, and the maximum caliber of jam plate 2 male ports is corresponding with the bottom lengths of dead bolt 5, and the lowest calibre of jam plate 2 male ports is wider than the thickness of dead bolt 5.

Embodiment two

Be embedded in lock box 1 underground, it and ground are fixed from reinforced hole 3 with two setscrews, water with cement again, above lock box 1, be screwed jam plate 2, jam plate 2 has the hole of convex, and the male ports bottom is circular, and tapered end is fixed on the rolling-gate bottom girder, dead bolt 5 is by flexible about tapered end control, dead bolt 5 for the two parts that intersect vertically form " " shape, the lower end is circular, and dead bolt 5 middle parts are provided with latch hook 6, and bumper 4 is fixed on the angle steel of bottom girder, and the diameter of a circle of jam plate 2 male ports is corresponding with the bottom lengths of dead bolt 5, and the lowest calibre of jam plate 2 male ports is wider than the thickness of dead bolt 5.

Claims

1, a kind of burglary-proofing lock for rolling door that is applied to various rolling-gates comprises dead bolt (5), lock box (1), and tapered end is fixed on the bottom girder of rolling-gate, and dead bolt (5) be is characterized in that by flexible about tapered end control: dead bolt (5) for the two parts that intersect vertically form "

" shape, in lock box (1) top jam plate (2) being set, jam plate (2) has the hole of convex, the male ports bottom of jam plate (2) and dead bolt "

" the shape bottom shape is similar.

2, burglary-proofing lock for rolling door as claimed in claim 1 is characterized in that: dead bolt (5) is provided with latch hook (6), and bumper (4) is fixed on the angle steel of bottom girder.

3, burglary-proofing lock for rolling door as claimed in claim 1 or 2 is characterized in that: the bottom lengths of dead bolt (5) is smaller or equal to the maximum caliber of jam plate (2) male ports, greater than the male ports lowest calibre.

4, burglary-proofing lock for rolling door as claimed in claim 1 or 2 is characterized in that: the lowest calibre of jam plate (2) male ports is wider than the thickness of dead bolt (5).

5, burglary-proofing lock for rolling door as claimed in claim 1 is characterized in that: lock box (1) bottom has reinforced hole (3).

6, as claim 1 or 5 described burglary-proofing lock for rolling door, it is characterized in that: lock box (1) is fixed with union piece with jam plate (2).