CN2320748Y - Safety anti-theft lock for rolling shutter door - Google Patents

Abstract

The utility model discloses a safety anti-theft lock for a rolling shutter door, which is composed of a lock shell, a telescopic tongue, a telescopic spring, a spring sleeve, a safety lock, a protector, a safety lock bolt, a safety spring, a fixing screw, a door opening lock, a door lock gear, an arch bar spring, a stopper spring, a stopper, an arch bar, a linking gear, a transmission gear and a linking spring, wherein a hole is formed at the bottom of the rolling shutter door correspondingly to the arch bar. When the door is locked, the protector is drawn down by the safety spring in order to achieve the action of theft prevention and safety. The utility model is convenient and rapid for unlocking and locking the door and has the advantages high security, automation for locking the door and strong applicability.

Description

The rolling door safety anti-theft lock

The utility model relates to mechanical field, particularly a kind of rolling door safety anti-theft lock.

Existing various rolling screen door lock must insert key in the keyhole when locking a door in the pass, and rotate a few rears and can lock a door, complicated operation, and when opening door, only just can finish with a key, poor safety performance, safety factor is low, cost height when making lock.

Goal of the invention of the present utility model is intended to overcome above-mentioned shortcoming, and it is convenient and swift to provide a kind of switch to lock a door, and it is simple to open door, safe, the rolling door safety anti-theft lock that cost is low.

Goal of the invention of the present utility model is achieved in that

The utility model is made up of lock housing, flexible tongue, coil tension spring, spring housing, safety lock, protector, insurance locking bolt, relief spring, fixed screw, the lock that opens the door, door lock gear, arch bar spring, backstopping device spring, backstopping device, arch bar, linked gear, travelling gear, interlock spring.

Lock housing is rectangle, both sides have the window of symmetry, flexible tongue has two, lay respectively at outside, lock housing both sides, front end has keyhole, the rear end is stretched in the lock housing by window, the interior coil tension spring of the flexible tongue of one side and lock housing is connected, arch bar in another flexible tongue and the lock housing is connected, the lock that opens the door is positioned at the central authorities of lock housing, be with the door lock gear above, the door lock gear is meshed with the linked gear that is positioned at the lock below of opening the door, be with travelling gear on the linked gear, linked gear is connected with the spring housing that is positioned at lock housing one side bottom by the interlock spring of a side, travelling gear is connected with the arch bar that is positioned at lock housing by the interlock spring of opposite side, have fixed screw holes in door lock gear two bottom sides, with fixed screw the locking of opening the door is fixed on the lock housing, the other end of coil tension spring is connected with an end of spring housing, the other end of spring housing is connected with relief spring, relief spring and spring housing are acute angle, the other end of relief spring is connected with protector, the front end of protector and safety lock tie and connect, the rear end is connected with the flexible tongue rear end of a corresponding side, and safety lock is positioned at lock housing, the lower end of protector, and be connected with safety lock, one side top and bottom of lock housing have the arch bar hole of symmetry, and arch bar is positioned at the arch bar hole, and the top of arch bar is with the arch bar spring, one side has backstopping device on arch bar top, backstopping device one end is fixed on the lock housing, and the other end is connected with arch bar with the flexible tongue of a corresponding side, backstopping device be positioned at flexible tongue above.

The kind of drive of the present utility model is: the lock that opens the door drives the door lock gear and rotates, door lock gear driven linked gear rotates, and linked gear drives travelling gear and rotates, and travelling gear drives telescopic tongue head move left and right by the interlock spring, flexible tongue snaps in or withdraws from the mounting groove, and promptly switch is locked a door.

When lock a door in the pass, arch bar backs down backstopping device, and coil tension spring promotes flexible tongue and moves, and drives relief spring and moves down, and the relief spring protector of leaving behind reaches the burglary insurance effect.

Mounting means of the present utility model is simple, must a hole be set in the position of rolling door bottom, arch bar correspondence.

The utility model is opened when locking a door, and opens safety lock earlier, opens the lock that opens the door again, opens in door when locking a door, and pull-up insurance locking bolt is opened the lock that opens the door again.

The utility model compared with prior art has the following advantages:

1. the utility model is simple in structure, design is ingenious, and the automation of locking a door has the burglary insurance function simultaneously;

2. the utility model low cost of manufacture, the door of unblanking is convenient and swift, safe, has very strong applied value.

Provide accompanying drawing of the present utility model below

Fig. 1 plane structure schematic diagram of facing of the present utility model

Below in conjunction with drawings and Examples, the utility model is described in further detail.

The utility model is made up of lock housing 1, flexible tongue 2, coil tension spring 3, spring housing 4, safety lock 5, protector 6, insurance locking bolt 7, relief spring 8, fixed screw 9, the lock 10 that opens the door, door lock gear 11, arch bar spring 12, backstopping device spring 13, backstopping device 14, arch bar 15, linked gear 16, travelling gear 17, interlock spring 18.

Lock housing 1 is rectangle, both sides have the window 19 of symmetry, flexible tongue 2 has two, lay respectively at outside, lock housing 1 both sides, front end has keyhole 20, the rear end is stretched in the lock housing 1 by window 19, the flexible tongue 2 of one side and lock housing 1 interior coil tension spring 3 is connected, arch bar 15 in another flexible tongue 2 and the lock housing 1 is connected, the lock 10 that opens the door is positioned at the central authorities of lock housing 1, be with door lock gear 11 above, door lock gear 11 is meshed with the linked gear 16 that is positioned at lock 10 belows of opening the door, be with travelling gear 17 on the linked gear 16, linked gear 16 is connected with the spring housing 4 that is positioned at lock housing 1 one side bottoms by the interlock spring 18 of a side, travelling gear 17 is connected with the arch bar 15 that is positioned at lock housing 1 by the interlock spring 18 of opposite side, have fixed screw holes in door lock gear 11 two bottom sides, with fixed screw 9 lock 10 that opens the door is fixed on the lock housing 1, the other end of coil tension spring 3 is connected with an end of spring housing 4, the other end of spring housing 4 is connected with relief spring 8, relief spring 8 is acute angle with spring housing 4, the other end of relief spring 8 is connected with protector 6, the front end of protector 6 is connected with insurance locking bolt 7, the rear end is connected with flexible tongue 2 rear ends of a corresponding side, safety lock 5 is positioned at lock housing 1, the lower end of protector 6, and be connected with safety lock 5, one side top and bottom of lock housing 1 have the arch bar hole of symmetry, arch bar 15 is positioned at the arch bar hole, the top of arch bar 15 is with arch bar spring 12, one side has backstopping device 14 on arch bar 15 tops, backstopping device 14 1 ends are fixed on the lock housing 1, and the other end is connected with arch bar 15 with the flexible tongue 2 of a corresponding side, backstopping device 14 be positioned at flexible tongue 2 above.

The kind of drive of the present utility model is: the lock 10 that opens the door drives door lock gear 11 and rotates, door lock gear 11 drives linked gear 16 and rotates, linked gear 16 drives travelling gear 17 and rotates, travelling gear 17 drives flexible tongue 2 move left and right by interlock spring 18, flexible tongue 2 snaps in or withdraws from the mounting groove, and promptly switch is locked a door.

When lock a door in the pass, arch bar 15 backs down backstopping device 14, and coil tension spring 3 promotes flexible tongue 2 and moves, and drives relief spring 8 and moves down, and relief spring 8 protector 6 of leaving behind reaches the burglary insurance effect.

Mounting means of the present utility model is simple, must a hole be set in the position of rolling door bottom, arch bar 15 correspondences.

The utility model is opened when locking a door, and opens safety lock 5 earlier, opens the lock 10 that opens the door again, opens in door when locking a door, and pull-up insurance locking bolt 7 is opened the lock 10 that opens the door again.

The utility model is simple in structure, design is ingenious, and the automation of locking a door has the burglary insurance function simultaneously, low cost of manufacture, and the door of unblanking is convenient and swift, safe, has very strong applied value.

Claims (4)

1. rolling door safety anti-theft lock, form by lock housing (1), flexible tongue (2), coil tension spring (3), spring housing (4), safety lock (5), protector (6), insurance locking bolt (7), relief spring (8), fixed screw (9), the lock (10) that opens the door, door lock gear (11), arch bar spring (12), backstopping device spring (13), backstopping device (14), arch bar (15), linked gear (16), travelling gear (17), interlock spring (18), it is characterized in that:

Lock housing (1) is rectangle, both sides have the window (19) of symmetry, flexible tongue (2) has two, lay respectively at lock housing (1) outside, both sides, front end has keyhole (20), the rear end is stretched in the lock housing (1) by window (19), the coil tension spring (3) that one side is stretched in tongue (2) and the lock housing (1) is connected, arch bar (15) in another flexible tongue (2) and the lock housing (1) is connected, the lock (10) that opens the door is positioned at the central authorities of lock housing (1), be with door lock gear (11) above, door lock gear (11) is meshed with the linked gear (16) that is positioned at lock (10) below of opening the door, be with travelling gear (17) on the linked gear (16), linked gear (16) is connected with the spring housing that is positioned at lock housing (1) one side bottom (4) by the interlock spring (18) of a side, travelling gear (17) is connected with the arch bar that is positioned at lock housing (1) (15) by the interlock spring (18) of opposite side, have fixed screw holes in door lock gear (11) two bottom sides, with fixed screw (9) lock (10) that opens the door is fixed on the lock housing (1), the other end of coil tension spring (3) is connected with an end of spring housing (4), the other end of spring housing (4) is connected with relief spring (8), relief spring (8) is acute angle with spring housing (4), the other end of relief spring (8) is connected with protector (6), the front end of protector (6) is connected with insurance locking bolt (7), the rear end is connected with flexible tongue (2) rear end of a corresponding side, safety lock (5) is positioned at lock housing (1), the lower end of protector (6), and be connected with safety lock (5), one side top and bottom of lock housing (1) have the arch bar hole of symmetry, arch bar (15) is positioned at the arch bar hole, the top of arch bar (15) is with arch bar spring (12), one side has backstopping device (14) on arch bar (15) top, backstopping device (14) one ends are fixed on the lock housing (1), the other end is connected with arch bar (15) with the flexible tongue (2) of a corresponding side, backstopping device (14) be positioned at flexible tongue (2) above.

2. according to the described a kind of rolling door safety anti-theft lock of claim 1, it is characterized in that: the lock (10) that opens the door drives door lock gear (11) and rotates, door lock gear (11) drives linked gear (16) and rotates, linked gear (16) drives travelling gear (17) and rotates, travelling gear (17) drives flexible tongue (2) move left and right by interlock spring (18), and flexible tongue (2) snaps in or withdraws from the mounting groove.

3. according to the described a kind of rolling door safety anti-theft lock of claim 1, it is characterized in that, when locking a door in the pass, arch bar (15) backs down backstopping device (14), coil tension spring (3) promotes flexible tongue (2) and moves, and drives relief spring (8) and moves down, relief spring (8) protector (6) of leaving behind.

4. according to claim 1 or 2 or 3 described a kind of rolling door safety anti-theft locks, it is characterized in that, in rolling door bottom, position that arch bar (15) is corresponding is provided with a hole.