CN2473292Y

CN2473292Y - New anti-theft fire-proof lock

Info

Publication number: CN2473292Y
Application number: CN 01219685
Authority: CN
Inventors: 何国雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-04-18
Filing date: 2001-04-18
Publication date: 2002-01-23
Anticipated expiration: 2011-04-18

Abstract

The utility model relates to a new theftproof and fireproofing lock, which consists of a lock body with a built-in main bolt, a control unit device which can open the lock, a movable bolt unit, a handle return locking and so on functional units. A group of saw preventing steel nails with high hardness is arranged in the main bolt, the aforesaid control unit device which can open the lock uses rack and cam transmission unit, one end of the rack is provided with a projection and is implicated with a spring, the other end of the rack is clamped by a round pin, the head of the round pin is sleeved with a pressure spring and supports with a low melting point alloy pin which is on the same lineal travel of the round pin. The utility model has an original structure and strong practicability.

Description

A kind of novel anti-theft Fire-proof lock

The utility model relates to a kind of novel anti-theft Fire-proof lock.

According to the NFA law regulation, all labeled door should be housed on escape way, natural too busy to get away Fire-proof lock, existing notion is contained in the lock (existing fireproofing door lock sees that optic panel adopts the compacting of 0.72mm steel plate) that Fire-proof lock on the security door generally is meant burning-tolerant, and a lot of big fire tragedies are told us, and big fire one is burnt, and what safety door but became is absolutely unsafe, that have or even " death door ", because Fire-proof lock at this moment can't be opened at all.

The purpose of this utility model provides a kind of simple installation, uses the novel anti-theft Fire-proof lock light, that noise is little.

For achieving the above object, the utility model is taked following design scheme: this novel anti-theft Fire-proof lock is by lock body and built-in main dead bolt and can make its control of turning cell arrangement, movable dead bolt unit, functional parts such as handle Hui Suo constitute, the anti-saw of one group of high rigidity steel nail is housed in main dead bolt, describedly make main dead bolt control of turning cell arrangement adopt tooth bar, the cam drive unit, head end at tooth bar has projection and has led extension spring, the tooth bar other end is blocked by round pin, and the head end of this round pin is with compression spring and is propped up by the low-melting alloy pin on the throw line same with it.The head end of this round pin is with compression spring and is propped up by the low-melting alloy pin on the throw line same with it.

For reducing the impulsive contact force that produces at closing time, buffering wheel is housed at the side of movable dead bolt.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the utility model structural representation

As shown in Figure 1, the utility model novel anti-theft Fire-proof lock is by lock body 1 and built-in main dead bolt 2 and can make its control of turning cell arrangement, movable dead bolt unit, handle return functional part such as lock 4 constituting.

The inner panel of lock body adopts the compacting of 1.2mm steel plate to form, and sees that optic panel adopts the 3mm steel plate, and the sealing of lock body outward appearance, solidness height are not yielding.

The anti-saw of one group of high rigidity steel nail 201 (in the present embodiment being 2) is housed in main dead bolt, when locking, sees that the light position is 12 * 35mm, movable stroke 21mm for strengthening the tamper-resistant function of lock, can designing main dead bolt.Described main dead bolt control of turning cell arrangement employing tooth bar, the cam drive unit of making (comprises tooth bar 5, opens finger cam 6, driven gear 7, unblanks to fan tooth 8, during operate as normal, tooth bar is motionless, fan tooth 8 by unblanking and drive the unlatching of opening the main dead bolt of finger cam 6 realizations), main dead bolt uses cam control stroke, thereby improved the anti-of main dead bolt directly to pressure and protecting against shock, and in the stroke of setting activity freely, noise is low.

One head end of tooth bar 5 has projection 501 and has led extension spring 12, and the tooth bar other end is blocked by round pin 9, and the head end of this round pin is with compression spring 10 and is propped up by the low-melting alloy pin 11 on the throw line same with it.

Movable dead bolt unit comprises oblique tongue 3, oblique tongue alignment pin 301, pulley 302, top spring 303, tiltedly tongue is opened shifting block 304, also has handle to return in addition and locks 4, and the structure design and the interconnected relationship of these parts are analogous to prior art, no longer describe in detail herein.

For reducing the impulsive contact force that produces at closing time, the buffering wheel 12 of steel is housed at the side of movable dead bolt.

Operating principle of the present utility model is: utilize fire that the principle that the back produces high temperature takes place, make heat-sensing device (the low-melting alloy pin 11) fusing rapidly in the lock body, compression spring 10 drives round pin 9 and puts in the C point hole, round pin 9 other ends break away from tooth bar, extension spring 12 spurs tooth bar 5 downwards, drive driven pulley clockwise direction Rotate 180 degree, transmission is given and is opened also Rotate 180 degree of finger cam 6 counter clockwise directions, retract antitheft main dead bolt, hit on pulley 302 with the projection on the hour rack 501, make in the oblique tongue 3 withdrawal lock bodies of movable dead bolt list, finish and meet the fire action of opening the door automatically, make labeled door not hinder the carrying out of various rescue works.

The utility model has the advantage of: the structural design novelty, practical.

Claims

1, a kind of novel anti-theft Fire-proof lock, by lock body and built-in main dead bolt and can make functional parts such as its control of turning cell arrangement, movable dead bolt unit, handle Hui Suo constitute, it is characterized in that: the anti-saw of one group of high rigidity steel nail is housed in main dead bolt, described main dead bolt control of turning cell arrangement employing tooth bar, the cam drive unit of making, head end at tooth bar has projection and has led extension spring, the tooth bar other end is blocked by round pin, and the head end of this round pin is with compression spring and is propped up by the low-melting alloy pin on the throw line same with it.

2, novel anti-theft Fire-proof lock according to claim 1, it is characterized in that: the side at movable dead bolt is equipped with buffering wheel.

3, novel anti-theft Fire-proof lock according to claim 1 and 2 is characterized in that: the optic panel of seeing of lock body adopts the 3mm steel plate.