Gate lock in a kind of elevator door lock device
The utility model belongs to a kind of elevator components, particularly a kind of locking device of elevator cage door.
Gate lock is installed in the gate system of elevator, and the gate of elevator is played to locking effect, is used in conjunction with to realize the unlatching closure of gate by being installed on unlocking apparatus on the upper bank of layer door and door lock simultaneously, is a kind of important elevator safety parts.
In order to guarantee passenger's boarding safety, GB7588-2003 < < elevator is manufactured and safety standard > > 11.2.1 bar regulation is installed: " horizontal throw at the edge, nearest doorway of elevator hoistways inside face and car sill, car door framework or sliding door should not be greater than 0.15 m." owing to being subject to the restriction of this distance, can carry out following embodiment: " a) rise to 0.20m, it is highly not more than 0.50m; B) for the cargo lift that adopts vertically sliding door, in whole stroke, this spacing rises to 0.20m; C) if car is equipped with the door of mechanical interlocking and can only opens in the district of unblanking of floor door, the locking of gate should be automatically depended in the operation of elevator.And gate locking must be confirmed by electric safety device.Above-mentioned spacing is unrestricted.”
When the horizontal throw at the edge, nearest doorway of elevator hoistways inside face and car sill, car door framework or sliding door is greater than 0.15mm, reach the requirement of standard regulation, adopting maximum is that gate lock is installed on car door machine, on layer door, unlocking apparatus is installed.Existing elevator car door locking device generally adopts the auxiliary force of the gravity of latch hook own and Compress Spring to realize the locking of gate.Adopt the auxiliary mode of stage clip, need to fix spring with spring compressor, guide pin bushing, guide spiro rod, nut, limiting stopper etc., required part is more, and during set-up cost, productive costs is high.And existing car door locking device in the operational process up and down of car as long as through layer door position will with the unlocking apparatus grazing being arranged on layer door, send clash, affect the travelling comfort of elevator; Electric confirmation switch is set if having, and the grazing of every layer also can cause switch unstable or even disconnect, and can not reach Complete Synchronization and actv. object.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of making flexibly, failure rate is low, safe and reliable, cost-effective Novel elevator car door lock.
In order to address the above problem, technical solution of the present utility model is:
Gate lock in a kind of elevator door lock device, comprise master lock base plate, it is characterized in that: in master lock base plate upper lateral, be provided with a horizontal slide rod, in horizontal slide rod, be provided be free to slide touch wheel apparatus and retracing spring, in master lock base plate bottom, by latch hook rotating shaft, be fixed wtih and the latch hook device of touching wheel apparatus interlock, in a side of latch hook device, be provided with the switching device that coordinates latch hook device Operating In Persistent Current Mode and carry out electric confirmation, and be arranged on and on the upper bank of layer door, coordinate gate lock that latch hook device is opened to open to hit bow.
Described touch wheel apparatus comprise touch wheel base plate, by rotating shaft with touch touching that wheel base plate is connected and take turns and be arranged on the pinch roller on base plate, pinch roller contacts with latch hook device, touching wheel base plate is connected with nylon slide block, nylon slide block is contained in horizontal slide rod, and by being together contained in sliding bar upper reset spring, reset, touch wheel base plate above adjusting bolt is housed.
Described latch hook device comprises latch hook and torsion spring, and upper latch hook is connected on master lock base plate by rotating shaft, and torsion spring one end is fixed on latch hook, and the other end is fixed on the lever being installed on master lock base plate.
Described switching device comprises switch fixing casing, for carrying out the lower contact of electric confirmation and being installed on the upper contact head of the chimoto of locking, switch fixing casing is provided with the lower latch hook matching with upper latch hook, switching device is provided with and promotes to touch the jacking block that wheel apparatus slides.
By technique scheme, upper latch hook only resets with a torsion spring, replaces original a set of compression spring component, and structure is simpler, and assembling more saves time, and cost is lower.Due to be provided with a set of separated with latch hook and can on sliding bar, slide touch wheel apparatus, under the effect of the jacking block of installing on switching device, touching wheel apparatus can be along sliding bar horizontal slip, and can keep latch hook always in locking state, due to touch wheel apparatus along sliding bar parallel motion one segment distance, so in elevator process flat bed region, touch the unlatching that wheel can and be arranged on the upper bank of layer door and hit the gap that keeps 6mm left and right between bow, thereby having avoided existing gate to be locked in flat bed region hits wheel and hits bow generation grazing, send clash, make elevator ride more comfortable, thereby reach effectively synchronous object.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model gate lock.
The specific embodiment
Below in conjunction with Fig. 1, the utility model is described in further detail.
As shown in Figure 1, gate lock in a kind of elevator door lock device, comprise master lock base plate 11, on master lock base plate 11, be laterally provided with a horizontal slide rod 6, in horizontal slide rod 6, be provided with the retracing spring 7 that touches wheel apparatus 8 and reset for touching wheel apparatus 8 that can be free to slide.Touching wheel apparatus 8 comprises and touches wheel base plate 18, by rotating shaft and touching of touching that wheel base plate 18 is connected, takes turns 4 and be arranged on and touch the pinch roller 19 of taking turns on base plate 18, pinch roller 19 contacts with latch hook device 9, touching wheel base plate 18 is connected with nylon slide block 3, nylon slide block 3 is arranged in horizontal slide rod 6, and reset by being together contained in sliding bar upper reset spring 7, touch wheel base plate 18 above adjusting bolt 5 is housed, by the adjusting of wheel apparatus 8 angles that crashes, thereby play the restriction of the latch hook stroke to resetting by torsion spring 12.
In master lock base plate 11 bottoms, by latch hook rotating shaft, be fixed wtih and the latch hook device 9 of touching wheel apparatus interlock, latch hook device 9 comprises latch hook 17 and torsion spring 12, torsion spring closes latch hook and switching device for auxiliary latch hook self gravitation, upper latch hook 17 is connected on master lock base plate 11 by rotating shaft, on the bearing that presses, be equipped with on the torsion spring 12 that resets of latch hook, torsion spring one end is fixed on latch hook 17, and the other end is fixed on the lever 10 being installed on master lock base plate 11.
In a side of latch hook device 9, be provided with the switching device 1 that coordinates latch hook device Operating In Persistent Current Mode and carry out electric confirmation, and be installed on and on the upper bank of layer door, coordinate gate lock that latch hook device 9 is opened to open to hit bow 13.Switching device 1 comprises switch fixing casing, for carrying out the lower contact 15 of electric confirmation and being installed on the upper contact head 16 of upper latch hook 17 ends, switch fixing casing below is provided with the lower latch hook 14 matching with upper latch hook 17, and the top of switching device 1 is provided with and promotes to touch the jacking block 2 that wheel apparatus 8 slides.
Upper latch hook 17 puts in place under the auxiliary force effect of self gravitation and torsion spring 12 and by being positioned at the position-limiting action closure of the pinch roller touching on wheel apparatus 8.Touch after wheel apparatus 8 and latch hook device 9 be installed on master lock base plate 11, master lock base plate 11 is installed on a door plate of elevator door-motor, keep relative static state with door gate head, switching device 1 is installed on the door machine link plate of a side relative to latch hook device 9 by support, in relative motion state, both combineds action realize the opening and closing movement of this gate lock with door gate head.
Elevator is when flat bed region, close the door in process, being positioned at jacking block on switching device 12 promotes to touch wheel apparatus 8 and moves on sliding bar, touching wheel 4 in moving process on touching wheel apparatus 8 departs from and to be arranged on layer door when stopping of bow 13 hit in the unlatching on bank, being installed on the lower contact 15 on switching device 1 and the upper contact head 16 being installed on latch hook 17 keeps in touch, upper latch hook 17 makes upper and lower latch hook locking by the torsion combined action of self gravitation and torsion spring 12, after door-closing in-place, the touching wheel 4 touching on wheel apparatus 8 hits and bends the gap that keeps 5.5-6.5mm between 13 with the unlatching on bank on layer door, until open the door again.Elevator up-down runs into the stop of not stopping during this time, touches wheel 4 and hits bow with unlatching and remain certain distance between 2, can not wipe and touch, thereby realized gate lock is installed after elevator move up and down noiselessness and effective synchronous object.
Elevator is when flat bed region, open the door in process, door machine driving band drives gate link plate to move to the direction of opening the door, and touches wheel apparatus 8 and on sliding bar 6, slides after a segment distance under the effect of Compress Spring 7, touches wheel 4 and starts and be arranged on unlatching on the upper bank of layer door and hit and bend 2 and contact, be subject to hitting stopping of bow 2, touch wheel apparatus 8 and start to clockwise rotate around center shaft, pinch roller presses latch hook device 9 downwards, and upper latch hook 17 is opened, upper and lower contact is separated, thereby completes the process of opening the door.
Elevator is when non-flat layer region, the above-mentioned process of opening the door is owing to there is no to open the application force that hits bow 2, latch hook 17 can not be opened, as continued, pull gate, touching wheel apparatus 8 segment distance that slides on sliding bar 6 encounters master lock base plate 11 and can not continue mobile, upper latch hook 17 continues locking with lower latch hook 14, then continues to be in contact with one another locking after mobile a bit of distance.Now between two gate plates, have gap, 20mm left and right, can not continue to open again, thereby guarantee that elevator is when non-flat layer region stops because of fault, the passenger in car can not open without authorization gate and avoid falling into the loss that causes life and property in hoistway.
The above is only the preferred embodiment of gate lock in a kind of elevator door lock device of the present utility model; technical personnel for elevator industry; do not departing under the prerequisite that the utility model opens one's minds; can also make some distortion and change, these all belong to protection domain of the present utility model.