CN2389216Y

CN2389216Y - Theft-proof device for scroll door

Info

Publication number: CN2389216Y
Application number: CN 99234245
Authority: CN
Inventors: 彭美中
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-10-14
Filing date: 1999-10-14
Publication date: 2000-07-26
Anticipated expiration: 2009-10-14

Abstract

The utility model relates to a theft-proof device for a rolling door, which is composed of a lock case, a lock core, a lock bolt, a bottom beam strip, a theft-proof hook, etc., wherein, a tension spring is arranged between the lock bolt and the bottom beam strip. The utility model is characterized in that the lock core is sheathed with back-stopping braking blocks for preventing the lock bolt from striking; three braking blocks orderly brake the lock bolt, wherein, two braking blocks rotate with the lock core and the other gear braking block is engaged with gear bars at the end of the lock bolt. The product has the advantages of strong theft-proof property and convenient operation, and an internal and an external parts are opened by keys when the door is closed, a lock is automatically fallen.

Description

The rolling-gate anti-theft device

The utility model relates to a kind of rolling-gate anti-theft device.

Rolling-gate is elegant in appearance, and is durable in use, do not take up an area of space of planes, therefore uses very general.Its shortcoming is the theftproof performance difference and the inconvenience of locking a door, and a lot of people adopt at the Men Neijia bolt usually and add method such as padlock outdoors and strengthen theftproof.But it is very little to take effect.There was the people on the door bottom girder, to add the pick-proof hook afterwards, but, also door can be opened without key indoor because exposed lock structure and automatic retaining insurance can not get good protection; Outdoor be the center with the lock core, go up in position with screwdriver and on the door sheet, make a call to a hole, lever up the retaining insurance, also can be opened.Therefore, still exist hidden danger.In addition, when rolling-gate is installed, must with doorframe two guide grooves between the upper and lower every being adjusted into unanimity.Therefore the also necessary from top to bottom parallel motion of door, results in hand cramps to the user during use.

The purpose of this utility model is: avoid the shortcoming of above-mentioned rolling-gate, a kind of pick-proof is provided, prevents taking off, preventing technical unlocking, closing the door latches automatically, easy to use, the rolling-gate anti-theft device that theftproof is strong.

The technical solution of the utility model is: the rolling-gate anti-theft device comprises lock box, lock core, holding screw, connection lock box and can also be provided with pick-proof hook and pulling force extension spring on the flexible locking bolt in both sides, the fixed mount that supports locking bolt and bottom girder sheet, locking bolt.Be with three retaining brake block that prevent that locking bolt is struck on the lock core, the centre bore of two brake block and lock core profile match and are combined into square arc hole; Another gear brake block center is a circular hole, and marginal tooth is meshed with the tooth bar of locking bolt end; Three brake block are braked successively, and the braking locking bolt; Tumbler gear in the lock box is meshed with the tooth bar of two locking bolts, and tumbler gear can oppositely move two locking bolts.

The first brake block outer rim extension has the pusher dog of a projection; Gear brake block outer rim has driving tooth, is provided with the vertical piece and the pawl mouth of an activity at the outer edge side extension; Lock core brake block outer rim has 2 locking tooths; The pawl mouth that the pusher dog of first brake block hooks the gear brake block makes it transmission, and the movable piece that hangs down can fall into the retaining teeth groove braking lock core of lock core brake block.Three brake block are braked mutually.There is fastening limited screw 4-6 near the locking bolt place on the lock box, be installed in the lock box positive and negative respectively, be with a sleeve on the screw respectively, rise spacing and guide effect locking bolt.

The utility model compared with prior art has following good effect:

1. the unlocking mechanism that comprises lock core all is arranged in the interlayer of lock housing, is not subject to destruction, and is disguised strong, has only key to open;

2. the holding screw of lock housing is set up two-sided tightening, and which face to tear not lower lock head open from merely, like this, prevents dismounting, and safety is stronger.

3. lock is opened the back locking bolt suitable degree of freedom, is not subjected to doorframe width influence at interval up and down during installation, and new Men Laomen can install;

4. closing the door latches automatically, and the inside and outside all must be with key operated;

5. select novel two " S " type lock cores, anti-drilling, anti-technical unlocking.

Accompanying drawing provides an embodiment of the present utility model.

Fig. 1 is the utility model structural representation;

Fig. 2 is locking bolt tooth bar and lock core lock-out state schematic diagram;

Fig. 3 is the tapered end schematic diagram;

Fig. 4 is the first brake block schematic diagram;

Fig. 5 is the gear brake block;

Fig. 6 is the lock core brake block.

Below in conjunction with accompanying drawing the utility model is elaborated:

As shown in Figure 1, the rolling-gate anti-theft device is made up of locking bolt 1, pick-proof hook 2, bottom girder sheet 4, lock box 5, lock core 7 etc., lock box and lock core are positioned at the middle part, can link to each other with lock box to two flexible locking bolts 1 of both sides, that supports locking bolt has fixed mount 12 and a bottom girder sheet 4, the pick-proof hook 2 that is connected on the locking bolt is inserted in the slotted eye of bottom girder sheet, and by set screw 13,14 location, the pick-proof hook can combine with the pre-buried button on ground, door bottom.Locking bolt enters lockhole automatically when locking a door for making, and also is provided with a tension spring 3 between locking bolt and bottom girder sheet.Lock core 7 one sides are provided with tumbler gear 15 (see figure 2)s, and two locking bolt ends are tooth bar in the lock box, and tumbler gear 15 is meshed with the locking bolt tooth bar, and locking bolt can oppositely be moved.Lock box 5 is being provided with 4-6 fastening limited screw 6 by the locking bolt place, be installed in the positive and negative of lock box respectively, is with a sleeve on the screw, and locking bolt is played location and guide effect.

Be with three block-shaped different brake block 8,9,10 (see figure 3)s on the lock core 7, first brake block, 8 outer rim extensions have the pusher dog 81 of a projection, and central authorities are a square arc hole; Gear brake block 9 central authorities are circular hole, and outer rim is a driving tooth 93, and outer rim one side has an extension, and a movable piece 91 and the pawl mouth 92 of hanging down arranged on the extension; Lock core brake block 10 outer rims have 2 locking tooths 101, and central authorities are square arc hole.Match with the lock core profile in the central square arc hole of

brake block

8,10, the tooth 93 of gear brake block 9 is meshed with locking bolt end tooth bar.Pusher dog 81 can prop up the pawl mouth 92 of gear brake block, and the vertical piece 91 on the gear brake block can snap in the tooth mouth of brake block 10, thereby three brake block interact.

Dynamic declaration is as follows: when unblanking, with key rotation lock core 7,

brake block

8,10 is followed rotation, and the tooth 101 on the lock core brake block is with the activity up jack-up place free state of piece 91 of hanging down; After pusher dog 81 touched the pawl mouth 92 of gear plectrum motion block, gear brake block 9 drove the locking bolt tooth bar and moves to the center, and lock is opened.This moment, the tooth 101 of lock core brake block was downward, and the activity on the gear brake block is hung down piece 91 also vertically downward but do not contact with lock core brake block 10, and lock core resets and just can extract key out then.Lock core lock-out

state.Brake block

8,10 is because medium pore and lock core closely cooperate, so can reset with lock core, three brake block are not braked mutually.The medium pore of gear plectrum motion block 9 is a circular hole, is meshed with the locking bolt tooth bar again, and locking bolt is promptly propped up by the guide groove wall of rolling-gate after withdrawing from the reveal lockhole, so gear brake block 9 can be parked on the enable possition.At closing time, when locking bolt arrives the lockhole position, because of the effect of tension spring 3 makes locking bolt insert the reveal lockhole, simultaneously, 9 rotations of locking bolt rack drives gear brake block, downward because of gravity when vertical piece 91 arrives the top, vertical piece blocks the locking tooth 101 of lock core brake block 10 automatically.

Claims

1. rolling-gate anti-theft device, comprise lock box (5), lock core (7), holding screw (6), connect lock box and can on the flexible locking bolt (1) in both sides, the fixed mount (12) that supports locking bolt and bottom girder sheet (4), locking bolt, also be provided with pick-proof hook (2) and pulling force extension spring (3), of the present utility model being characterised in that: be with the retaining brake block (8), (9), (10) that prevent that locking bolt (1) is struck on a. lock core (7), the centre bore of brake block (8), (10) and lock core profile match and are combined into square arc hole; Gear brake block (9) center is a circular hole, and marginal tooth is meshed with the tooth bar of locking bolt (1) end; Three brake block are braked successively, and the braking locking bolt; B. the tumbler gear (15) in the lock box (5) is meshed with the tooth bar of two locking bolts (1), and tumbler gear can oppositely move two locking bolts.

2. rolling-gate anti-theft device according to claim 1 is characterized in that: first brake block (8) outer rim extension has the pusher dog (81) of a projection; Gear brake block (9) outer rim has driving tooth (93), is provided with the vertical piece (91) and the pawl mouth (92) of an activity at outer rim one side extension; Lock core brake block (10) outer rim has 2 locking tooths (10); The pawl mouth (91) that the pusher dog (81) of first brake block (8) can hook gear brake block (9) makes it transmission, and the movable piece (91) that hangs down can fall into locking tooth (101) groove of lock core brake block (10), and three brake block are braked successively.

3. rolling-gate anti-theft device according to claim 1, it is characterized in that: lock box (5) is gone up near the locking bolt place 4-6 fastening limited screw (6), be installed in the lock box positive and negative respectively, be with a sleeve on the screw respectively, locking bolt (1) is played spacing and guide effect.