CN2338442Y - Safety and convenient lock for roll door - Google Patents

Abstract

The utility model provides a safe and convenient lock for a roll door. A lock core is sheathed with a small gear engaged with a big gear; a shifting pin on the big gear is matched with an unlocking gap; a manual opening cam is corresponding to an opening shifting nail; both ends of a lock chip are provided with a return compression spring and a damping spring; a lock shell is provided with a back locking clamping claw; one end extends to the front of a back locking clamping opening on the lock chip, and the other end extends to the unlocking gap. The closing of the door indoors and outdoors and the opening of the door indoors do not need a key, and the utility model can realize the back locking; the opening indoors must use the key in the back locking. The utility model has the advantages of high safety, time saving, labour saving, convenient opening and closing operation, etc.

Description

Rolling-gate safe ready door lock

The utility model relates to the door lock of a kind of rolling gate door lock, particularly a kind of safe ready, is suitable for rolling-gate and installs and uses.

Existing rolling-gate door lock, no matter be from indoor or all need to insert lock core from outdoor switch and can open door or shut with key, though the lockset that has also can be shut without key after improving, but the problem of opening still need be used key same as before, and exist because the little rotation of turn moment is painstaking, even the damage key, extremely inconvenience such as easily pries open again at many shortcomings.

The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, provides a kind of indoor and outdoor to close the door and indoor opening the door without key, can realize the board-like door lock of locking of rolling-gate safe ready.

The purpose of this utility model is such realization: comprise by lock core, locking plate, connecting rod, dead bolt and dead bolt guide card, lock housing is formed, it is to be set with the pinion that meshes with gear wheel on lock core, the axle of gear wheel is fixed on the lock housing, on the gear wheel two unblank finger respectively with locking plate on two breach of unblanking match, locking plate is connected with the adjusting knob adjustment with dead bolt by connecting rod, dead bolt guide card positioning and guiding, the manually opened cam that is installed on the Large Gear Shaft During links to each other by the outer manually opened knob of sleeve on it and lock housing, manually opened cam is corresponding with the manually opened group of nail at the locking plate back side, return compression spring all is installed and contracts along the switch moving direction between locking plate two ends and lock housing, be equipped with on the lock housing and lock the claw axle towards spring, lock claw and this hinge and be equipped with torsion spring, locking claw one end extends and locks bayonet socket the place ahead on the locking plate, the other end extends the indentation, there of unblanking.

Dead bolt is oblique to be movingly with bayonet socket and spring.

Manually opened knob and cam riveted and fixed.

Pinion and gear wheel gear ratio are 1: 2.

Owing to adopt said structure, only need at closing time with rolling-gate drop-downly put in place, the dead bolt inclined-plane is with bayonet socket is collided, stretch voluntarily under spring action, door is shut.If only need the turn manual knob, door can be opened again without locking, can open door with key when opening the door if locked indoor also the need without key indoor.So the utlity model has safe antitheft, open advantages such as time saving and energy saving, that switch is all convenient.

Comment below in conjunction with accompanying drawing.

Fig. 1 is the utility model scheme of installation.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the C-C sectional view of Fig. 2.

Fig. 4 is the B-B sectional view of Fig. 1.

With reference to Fig. 1-Fig. 4, the utility model is by lock core 1, locking plate 4, connecting rod 6, dead bolt 8, dead bolt guide card 7 and lock housing (3,10) form, be set with pinion 22 on the lock core 1 with gear wheel 12 engagements, gear wheel 12 is fixed on the lock housing 3 by its axle, on the gear wheel 12 two unblank finger 13 respectively with locking plate 4 on two breach 20 of unblanking match, locking plate 4 is adjusted with dead bolt 8 usefulness adjusting knobs 5 by connecting rod 6 and is connected, dead bolt 8 usefulness guide cards 7 positioning and guidings, be installed in manually opened cam 17 on 12 of the gear wheels by sleeve and lock housing (3 on it, 10) outer manually opened knob 2 links to each other, manually opened cam 17 is corresponding with the manually opened group of nail 19 at locking plate 4 back sides, 3 of locking plate 4 two ends and lock housings are along spring 11 and buffer springs 16 such as return pressure all are installed on the switch moving direction, also be equipped with on the lock housing 3 and lock 14 of claws, lock claw 14 with this hinge and torsion spring is installed, lock claw 14 1 ends and extend and lock bayonet socket 15 the place aheads on the locking plate 4, the other end extends breach 20 places of unblanking.Collide with bayonet socket and stretch, contract to slide under spring 11 effects and shut the door in dead bolt 8 inclined-planes (45 °).Manually opened knob 2 and cam 17 riveted joints.Pinion 22 is 1: 2 with gear wheel 12 gear ratios, and promptly the torque ratio original door lock increases and is twice.

When rolling-gate was drop-down, dead bolt 8 inclined-planes slided along bayonet socket 9, and spring 11 is return, compressed to dead bolt 8, and when surpassing bayonet socket 9, spring 11 rebounds dead bolt 8, completely shut.When locking key inserted lock core 1, with open direction of rotation, it is outdoor inhour, indoor clockwise, rotating on about half-turn (180 °) gear wheel 12 finger 13 locks breach 21 along left and right sides locking plate and rotates, divide to add locking plate 4 is stirred forward, be right locking plate 4 to the right, left locking plate 4 compresses buffer spring 16,2-3 millimeter left, make to lock claw 14 and embed and lock bayonet socket 15, when key is obstructed sensation when changeing motionless, the key cycle is extracted, finish and lock.Or else indoor can open with manual knob this moment, increases safety factor.During unlatching, mesh with gear wheel 12 because of being with pinion 22 on the lock core 1, gear ratio 1: 2, when key inserts lock core 1, turn around (360 °) gear wheel 22 of outdoor dextrorotation rotates half-turns (180 °), two fixing fingers 13 screw in a left side respectively on it, the breach 20 of unblanking of right locking plate 4, with left locking plate 4 to the right, right locking plate 4 left, compression spring 11, by locking plate link rod 6 dead bolt 8 is retracted from bayonet socket 9, make can upwards promote unlatching about 320 ° when being about 160 ° of gear wheel 12 turns simultaneously when lock core 1 rotation, finger 13 surpasses locking plate 4 end faces, spring 11 rebounds locking plate 4 link rods 6 dead bolts 8 together, be in and shut preceding SBR next time.When manually opened, indoor manual open knob 2 by axle core 18 and cam 17 rivetings knot together, when changeing knob 2, the nail 19 of dialling that cam 17 protrudes locking plate 4 back sides is stirred to left and right respectively, locking plate 4 dead bolts 8 is moved withdraw from bayonet socket 9, and door is opened.If lock, embedded and locked bayonet socket 15 because of locking claw 14, manual knob 2 can't be stirred locking plate 4 and can not be manually opened, key must be inserted lock core 1, indoor inhour, outdoor (identical) clockwise this moment with the key operated method of general usefulness, finger 13 on the gear wheel 22 pressed to lock claw 14 far-ends, make claw 14 lift, break away from bayonet socket 15, be rotated further key, rolling-gate can be opened.

Claims (4)

1, a kind of rolling-gate safe ready lock, comprise by lock core, locking plate, connecting rod, dead bolt and guide card, lock housing is formed, it is characterized in that: be set with pinion on the lock core with the gear wheel engagement, the axle of gear wheel is fixed on the lock housing, on the gear wheel two unblank finger respectively with locking plate on two breach of unblanking match, locking plate is connected with the adjusting knob adjustment with dead bolt by connecting rod, dead bolt guide card positioning and guiding, the manually opened cam that is installed on the Large Gear Shaft During links to each other by the outer manually opened knob of sleeve on it and lock housing, manually opened cam is corresponding with the manually opened group of nail at the lock back side, along all being installed on the switch moving direction, return compresses spring and buffer spring between locking plate two ends and lock housing, be equipped with on the lock housing and lock the claw axle, lock claw and this hinge and be equipped with torsion spring, lock claw one end and extend and lock bayonet socket the place ahead on the locking plate, the other end extends the indentation, there of unblanking.

2, rolling-gate safe ready door lock as claimed in claim 1, it is characterized in that: dead bolt inclined-plane and bayonet socket and spring are movingly.

3, rolling-gate safe ready door lock as claimed in claim 1 is characterized in that: manually opened knob and cam riveted and fixed.

4, rolling-gate safe ready door lock as claimed in claim 1, it is characterized in that: the gear ratio of pinion and gear wheel is 1: 2.

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