A kind of mechanical device of safety door latch
Technical field
The invention belongs to the safety door latch technical field, particularly relate to a kind of mechanical device that has more the door lock of security performance requirement.
Technical background
The present extensively safety door lock device that adopts is to utilize world door to insert horizontally to insert and use swipe the card key and handwheel and close or open the door existing this door lock action insecure deficiency of easily being prized of ubiquity performance unstable structure under the situation of being mutually related.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of pick-proof ability of door lock and mechanical device of the safety door latch of the versatility of installing and using, convenience, reliability of improving is provided.
In order to realize the foregoing invention purpose, the technical scheme of employing is as follows:
A kind of mechanical device of safety door latch, comprise transmission mechanism and runner mechanism, described transmission mechanism is provided with by motor-driven latch, described runner mechanism is provided with groove, latch can insert or leave groove under motor-driven, described runner mechanism also is provided with the inserted link that can insert or leave doorframe corresponding position jack along with rotating.
The present invention is corresponding with the groove of runner mechanism by the latch of transmission mechanism, and when latch inserted groove, runner can't rotate, and door lock is in locking state, and when unblanking, drive motors drives latch and leaves runner.
In the technique scheme, by the rack-and-pinion transmission, described gear is fixedlyed connected with motor between the motor of described transmission mechanism and the latch, and described tooth bar is fixedlyed connected with latch, and gear and tooth bar are meshed.Adopt the rack-and-pinion transmission, make things convenient for the motor-driven latch to insert or leave the groove of runner mechanism.
Further, described transmission mechanism comprises movable block, latch, limited block, installing plate, motor fixing frame, upper cover of lock, tooth bar, the lock lower cover, motor, gear, the sliding support cover, described gear is fastened on the axle of motor with screw, motor tightens together by screw and motor fixing frame, motor fixing frame is fastened on the upper cover of lock by screw again, one end of described movable block is fixedlyed connected with limited block with screw by the hole of installing plate, the other end is enclosed within on the pillar of lock lower cover by the sliding tray of its setting, the sliding support cover also is enclosed within on the pillar of lock lower cover, and be positioned at the below of movable block, tooth bar is fastening by screw and movable block, and and gears engaged, upper cover of lock is fastening by screw with the lock lower cover.
Adopt the transmission mechanism of said structure can be by electric drive mode drive motors such as swiping the card.
Further, described transmission mechanism also comprises lock core, and the hole that lock core passes the lock lower cover contacts with movable block.Add the transmission mechanism of lock core structure, can adopt the key manual driven.
Described installing plate and door lock are together.
Described runner mechanism comprises interior runner, outer hand wheel, inserted link, and on the runner, described outer hand wheel linked to each other with interior runner by connecting shaft in described inserted link was fastened on screw.
Further, described inserted link comprises first inserted link, second inserted link, the 3rd inserted link.
The set hole of described inserted link and doorframe is corresponding, by rotate outer hand wheel drive in the rotation of runner can drive inserted link and insert and leave the corresponding hole of doorframe.
Described runner mechanism also comprises locating piece, and the internal runner of described locating piece positions.
The present invention also comprises guiding mechanism, described guiding mechanism comprises first touch-switch, the first touch-switch fixed block, second touch-switch, the second touch-switch fixed block, the 3rd touch-switch, the 3rd touch-switch fixed block, guide pad, described guide pad is locked on the door, the described first touch-switch fixed block is fixedlyed connected with upper cover of lock by screw, described first touch-switch is locked on the first touch-switch fixed block, the described second touch-switch fixed block, the 3rd touch-switch fixed block is locked on the guide pad by screw respectively, described second touch-switch, the 3rd touch-switch is locked on the second touch-switch fixed block and the 3rd touch-switch fixed block by screw respectively.
The present invention has following characteristics:
1, door lock close and open need to rotate outer hand wheel drive in runner rotate and drive inserted link and insert and leave in the corresponding hole of doorframe;
2, can outer hand wheel rotate and determine whether latch leaves in the groove of interior runner;
3, latch moves up and down by the rack and pinion drive mechanism transmission;
4, the motion of rack and pinion drive mechanism is forced into the position by the shell fragment of first touch-switch, second touch-switch, the 3rd touch-switch and transmits signal to main control system;
5, after swiping the card, do not open the door latch can be again in the time of host setting insert in the groove of runner, open the door and need swipe the card again, door is held rear indicator light can be bright, door closes a rear indicator light and does not work and can directly know whether to shut and relieved leaving outdoors;
6, after interior runner is pressed onto the 3rd touch-switch, in latch can not insert at once in the groove of runner but after the time of main control system program setting, insert;
7, whether rack and pinion drive mechanism and guiding mechanism are not influenced by the intensity of runner mechanism can reliably, that is to say when runner mechanism be subjected to strong impact rack and pinion drive mechanism and guiding mechanism form respectively that components and parts are not destroyed at all can operate as normal, guaranteed that door is by powerful the impact and the improper possibility of opening;
8, small machine can be powered by main frame, can open and closes the door with key when main frame is out of order and do not have electricity.
Description of drawings
Fig. 1 is the transmission mechanism decomposing schematic representation.
Fig. 2 is the runner structural scheme of mechanism.
Fig. 3 is the guiding mechanism schematic diagram.
Fig. 4 is lock general structure schematic diagram.
Fig. 5 is inserted link and sash structure scheme of installation.
Fig. 6 installing plate and door lock assembly structure schematic diagram.
The specific embodiment
The present invention is described further below in conjunction with accompanying drawing.
Structural representation of the present invention as shown in Figure 4, whole safety door lock device is divided into as the lower part:
First is main frame and card reader: it is used for rack and pinion drive mechanism is controlled (not shown);
Second portion is a rack and pinion drive mechanism: it is used for the inserted link action of runner is controlled, and concrete structure as shown in Figure 1;
Third part is a runner mechanism: it inserted link on the runner can be inserted and withdraw from make Men Guan in the jack of door and opens, and concrete structure as shown in Figure 2;
The 4th part is a guiding mechanism, and concrete structure as shown in Figure 3.
Rack and pinion drive mechanism mainly comprises: lock core 1, movable block 2, the first touch-switch fixed block 4, first touch-switch 3 (the described first touch-switch fixed block 4, first touch-switch 3 belong to guiding mechanism), latch 5, limited block 16, installing plate 17,12V small machine fixed mount 18, upper cover of lock 19, M3 screw 20, M5 screw 21, tooth bar 22, lock lower cover 23,12V small machine 24, gear 25, sliding support cover 26.
The rack and pinion drive mechanism compound mode is: gear 25 usefulness screws are fastened on 24 of the 12V small machines, and 12V small machine 24 tightens together by M3 screw and 12V small machine fixed mount 18, and then is fastened on the upper cover of lock 19 by M3 screw 20; Sliding support cover 26 is enclosed within on the pillar of locking lower cover 23 (it play the guiding role); The hole of one end of movable block 2 by installing plate 17 is affixed with M5 screw 21 and limited block 16, and the other end is enclosed within on the pillar of lock lower cover 23 and overlaps 26 end faces with sliding support and contact by sliding tray, and tooth bar 22 is fastening and mesh with gear 25 by screw and movable block 2; The first touch-switch fixed block 4 is affixed by screw and upper cover of lock 19, and first touch-switch 3 is locked on the first touch-switch fixed block 4 again; Upper cover of lock 19 is fastening by M3 screw 20 with lock lower cover 23; Installing plate 17 when mounted with door lock together, concrete mode is fixedly mounted on the door-plate for adopting fixed block 32, installing plate 17 is being fixed together by screw and fixed block 32, as shown in Figure 6.
The effect of rack and pinion drive mechanism is to make rectilinear motion back and forth by the rotating band carry-over bar 22 of gear 25, makes latch 5 insert and withdraw from the groove of runner mechanism, thereby the rotation of runner 8 realizes that door can close and open in the restriction.
Runner mechanism mainly comprises: interior runner 8, outer hand wheel 27, first inserted link 9, second inserted link 10, the 3rd inserted link 11, locating piece 12.
Above-mentioned runner mechanism compound mode is: on the runner 8, outer hand wheel 27 linked to each other with interior runner 8 by connecting shaft in three inserted links were fastened on screw.
The effect of runner mechanism is: three inserted links in driving when outer hand wheel 27 clockwise rotates on the runner 8 leave the jack in the doorframe, and this moment, door can be opened; In the jack in three inserted links insertion doorframes in driving when outer hand wheel 27 rotates counterclockwise on the runner 8, this moment, door can not be opened, the positioning action of runner 8 in locating piece 12 plays, as shown in Figure 5.
Guiding mechanism mainly comprises: second touch-switch 6, the second touch-switch fixed block 7, the 3rd touch-switch 13, the 3rd touch-switch fixed block 14, guide pad 15, and be installed in first touch-switch 3 and the first touch-switch fixed block 4 on the rack and pinion drive mechanism.
Above-mentioned guiding mechanism compound mode is: guide pad 15 is locked on the door, the second touch-switch fixed block 7, the 3rd touch-switch fixed block 14 are locked in respectively on the guide pad 15, and second touch-switch 6, the 3rd touch-switch 13 are locked in respectively on the second touch-switch fixed block 7, the 3rd touch-switch fixed block 14.
The effect of guiding mechanism is: the latch in the rack and pinion drive mechanism 5 is play the guiding role, simultaneously when interior runner 8 and the 3rd touch-switch 13 are collided, the signal that produces passes to main frame moves downward rack and pinion drive mechanism limited block 16, stop motion when colliding with the limited block 16 and second touch-switch 6, latch 5 inserts in the groove of interior runner 8, runner 8 can not rotate in this moment, first inserted link 9, second inserted link 10, the 3rd inserted link 11 inserts respectively under the guide effect of guide pad 28 in the corresponding hole of doorframe, door is locked and can not be opened, and door-plate 31 can not 29 rotate around the shaft relative to doorframe 30.
The operation of opening the door:
Swipe the card, the signal that card reader produces uploads to main frame, main frame is given an order the affixed with it gear 25 of 12V small machine 18 drives is rotated counterclockwise, thereby the feasible tooth bar 22 that is fixed on the movable block 2 with its engagement moves upward, drive movable block 2, limited block 16, latch 5 is moving linearly upwards also, the signal that produces when limited block 16 and first touch-switch 3 are collided passes to main frame, the control program of main frame makes 18 stop motions of 12V small machine, can rotate interior runner 8 this moment by rotating outer hand wheel 27, make first inserted link 9 affixed with interior runner 8, second inserted link 10, the 3rd inserted link 11 leaves respectively in the corresponding doorframe jack, can open door this moment, and the indicator lamp that is connected on second touch-switch 6 can be bright;
When not rotating outer hand wheel 27 after swiping the card, in the groove of runner 8, door was not opened, and make door open and need swipe the card again in 12V small machine 18 meeting driven gear rackwork moving handle latches 5 inserted again in the time of host setting.
The operation of locking a door:
Rotate outer hand wheel 27 drive in runner 8 turn to when colliding with locating piece 12, first inserted link 9 with interior runner 8 Joints, second inserted link 10, the 3rd inserted link 11 is inserted in the corresponding hole of doorframe, the 3rd touch-switch 13 shell fragments also signal of compacted generation pass to main frame, the instruction that main frame sends clockwise rotates 12V small machine 18 driven gears, tooth bar 22 with its engagement, movable block 2, limited block 16, latch 5 moves downward in the groove of runner 8 in the insertion after the time that mainframe program is set, when limited block 16 and second touch-switch 6 are collided, the signal of the compacted generation of shell fragment of second touch-switch 6 passes to main frame, the instruction that main frame sends stops operating 12V small machine 18, in the groove of the interior runner 8 of latch 5 insertions this moment, door is locked, at this moment indicator lamp does not work on second touch-switch 6, can relievedly leave.
Operation when main frame does not have electricity or is out of order:
Insert key drive lock core 1 rotation in the lock core 1 with key, movable block 2 is moved up or down, drive affixed with it tooth bar 22 and move, thereby make latch 5 leave or insert in the groove of interior runner 8, rotate outer hand wheel 27 and reach the purpose of opening the door and locking a door.
Characteristics of the present invention are: (1), compact conformation are simple, easy for installation; (2) the anti-theft effect performance is good.