CN201817159U

CN201817159U - Elevator emergency evacuation device

Info

Publication number: CN201817159U
Application number: CN2010202927372U
Authority: CN
Inventors: 王支强; 耿鹏鹏
Original assignee: HANGZHOU OPTIMAX TECHNOLOGY Co Ltd
Current assignee: HANGZHOU OPTIMAX TECHNOLOGY Co Ltd
Priority date: 2010-08-13
Filing date: 2010-08-13
Publication date: 2011-05-04
Anticipated expiration: 2020-08-13

Abstract

An elevator emergency evacuation device comprises a power commutation circuit (1) for an emergency state, a heavy-duty direction judging circuit (2) and a driver (4), wherein the heavy-duty direction judging circuit (2) is composed of a logic controller (3), a motor rotor (5) and an encoder (6); the control signal output end (P4) of the logic controller is connected with the driver (4); the inlet wire ends (R), (S) and (T) of the power supply of the driver are connected with the power output end of the power commutation circuit (1); and the encoder (6) is installed on the central shaft of the motor rotor (5) and is connected with a port (P6) of the logic controller (3) through a decoder wire. The device utilizes the gravity relationship of the sedan and the counterweight and uses the decoder to collect the displacement signals of the motor rotor, fast judge the heavy-duty direction of the elevator and control the elevator to finish the emergency evacuating work; and the device has simple structure, safe and reliable operation, no additional device, low cost and energy consumption and popularization significance.

Description

The elevator emergency detrainment device

Technical field

The utility model relates to the elevator emergency detrainment device, specifically is a kind of automatic control device of emergency evacuation of elevator power down mode.

Background technology

General solution about the elevator emergency detrainment device in the prior art is: utilize external device to judge elevator heavy duty direction as weigh switch or electronic weighing instrument, perhaps the safety return circuit to elevator detects, judge heavily loaded direction according to size of current, allow elevator then from slipping car.When slipping vehicle speed during greater than setting value, emergency facility sends ceases and desist order, and repeats above process after stopping again, reaches level position up to elevator, opens the door and puts the people.

There is following defective in prior art: judge elevator heavy duty direction and detect elevator whether reach level position by the service direction of detection elevator or the electric current of elevator safety loop in (1), the prior art, it is poor to do reliability like this, and the incidence of maloperation is higher; And detect elevator repeatedly and slip vehicle speed and controlling, must need high-performance backup power that electric power is provided; (2), use the accessory equipment add such as the installation electronic-weighing instruments such as switch, electronic scales of weighing, but volume is big, cost is high, operating accuracy is poor, and add accessory equipment and apparatus for controlling elevator between problems such as interface is loaded down with trivial details, debug difficulties appear unavoidably; (3), allow elevator from slipping car to reach level position, this easy et out of order jeopardizes passenger safety.

Chinese patent by retrieval, the innovation and creation of relevant elevator emergency detrainment device have, but their related circuit structures with connect collocation method and all have obviously differently with the utility model, especially how correctly not judge this technology point of heavily loaded direction of elevator.

The utility model content

The purpose of this utility model is intended to solve problems of the prior art, and a kind of elevator emergency detrainment device is provided, and described elevator emergency detrainment device is applicable to the elevator automation field, and is simple in structure, safe and reliable, Installation and Debugging are more convenient.Elevator emergency detrainment device provided by the utility model, utilize the power circuit in the former apparatus for controlling elevator, by adding a heavily loaded direction decision circuitry, beyond apparatus for controlling elevator, install weighing-appliance additional and just can judge elevator heavy duty direction very easily, guaranteed that elevator can steadily arrive level position safely under the power failure emergency rating.

Concrete technical scheme of the present utility model label in conjunction with the accompanying drawings is described below: a kind of elevator emergency detrainment device, comprise emergency rating power supply switch circuit 1, heavy duty direction decision circuitry 2 and actuator 4, described heavily loaded direction decision circuitry 2 is by logic controller 3, rotor 5 and coder 6 constitute, wherein, the control signal output ends P4 of described logic controller 3 links to each other with described actuator 4, the inlet wire R of described actuator 4 power supplys, S, the T end links to each other with the power output end of described power supply switch circuit 1, described coder 6 is installed on the center shaft of described rotor 5, and is connected with the port P6 of described logic controller 3 by the coder line.

Further, described logic controller 3 also has a power failure emergency operating signal input port P1, and it links to each other with described power supply switch circuit 1, receives the elevator emergency operation signal that power supply switch circuit 1 sends.

Described logic controller 3 has a port P7 in addition, and port P7 connects an acoustic-optic alarm 7.

Described logic controller 3 also has a port P8 in addition, and port P8 connects a door district signal supervisory instrument 8.

The utility model compared with prior art has following beneficial effect: 1, this device utilizes the natural gravity relation of lift car and counterweight, by coder 6 gather rotors 5 displacement signal judge the heavily loaded direction of elevator apace, the control elevator is finished emergency evacuation work, have simple in structure, the accuracy rate height, safe and reliable to operation, no additional equipment, cost is low, energy consumption is low, has dissemination; 2, heavily loaded direction decision circuitry just can be judged correct elevator heavy duty direction by a simple circuit layout, has saved the difficulty of the cost of external weighing-appliance and installation, debugging; 3, owing to judge heavily loaded direction in advance, guaranteed the consistent of service direction and heavily loaded direction, can save the capacity of UPS backup power greatly, guarantee the steady safety that elevator moves.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Indicate among the figure: 1: power supply switch circuit; 2: heavily loaded direction decision circuitry; 3: logic controller; 4: actuator; 5: rotor; 6: coder; 7: acoustic-optic alarm; 8: door district signal supervisory instrument; 9: band-type brake; 10: be elevator emergency operation signal (ARD-CHECK); P1 end: elevator emergency operation signal input part; P4 end: control signal output ends; P6 end: electric signal input end; P7 end: sound and light alarm signal output part; P8 end: door district signal input part.

The specific embodiment

Further describe detailed technology content of the present utility model and embodiment below in conjunction with accompanying drawing.

Accompanying drawing 1 expression most preferred embodiment of the present utility model further describes detailed technology content of the present utility model below in conjunction with accompanying drawing 1.As shown in Figure 1, the application's device comprises a UPS backup power, be used under the situation that elevator has a power failure suddenly, for Circuits System provides electric power, when elevator has a power failure suddenly, power supply switch circuit 1 automatically switches under the UPS powering mode, simultaneously send ARD-CHECK elevator emergency operation signal 10 to logic controller 3, the port P1 of logic controller 3 detects and enters the emergency evacuation operational mode behind the ARD-CHECK elevator emergency operation signal and the P7 port by logic controller 3 sends the sound and light alarm signal to acoustic-optic alarm 7, remind the passenger to note present case, prepare emergency evacuation.Heavy duty direction decision circuitry 2 comprises logic controller 3, rotor 5 and coder 6, wherein, the control signal output ends P4 of logic controller 3 links to each other with described actuator 4, for actuator 4 provides control signal, the rotation of actuator 4 control rotors 5, inlet wire R, the S of actuator 4 power supplys links to each other with the power output end of power supply switch circuit 1 with the T end, for the operation of control elevator provides the electric power support.After elevator enters the emergency evacuation operational mode, logic controller 3 Control Driver 4 are opened band-type brake, the time of opening is very short, at this moment, varying in weight of motor both sides car and counterweight, can on heavily loaded direction, produce the micro-displacement of moment, on heavily loaded direction, rotate so a heavier end drives rotor 5.Coder 6 is installed on the center shaft of rotor 5, get access to the change in displacement on the rotor rotation direction, be translated into electric impulse signal, be sent to logic controller 3, the principle of work of coder 6 is: coder 6 produces two groups of sinusoidal wave pulse signals according to the variation of the hand of rotation of rotor 5, and two groups differ 90 degree, logic controller 3 can be by the front and back of two groups of sinusoidal wave pulse signals of logic determines, to differentiate the forward and reverse of coder, the i.e. service direction of rotor 5.Logic controller 3 sends action command to actuator 4 according to the heavily stressed direction of judging, and the control elevator begins slowly to move along heavily loaded direction, has effectively utilized the natural gravity relation, reaches the purpose of saving the UPS electric weight.

Described logic controller 3 also is connected with a door district signal supervisory instrument 8; in the slow operational process of elevator; detect the position of flat bed pedal repeatedly; when detecting the flat bed pedal; door district signal supervisory instrument 8 sends district's detection signal to logic controller 3; logic controller 3 sends halt command, opens the door to put the people.

The utility model only is described in detail with regard to most preferred embodiment; but can not be interpreted as the restriction of other modes that the utility model is implemented; everyly further improve and similar or identical scheme on the utility model basis, all being considered as is the scope that the utility model is asked for protection.

Claims

1. elevator emergency detrainment device, comprise emergency rating power supply switch circuit (1), heavy duty direction decision circuitry (2) and actuator (4), it is characterized in that: described heavily loaded direction decision circuitry (2) comprises logic controller (3), rotor (5) and coder (6), wherein, the control signal output ends (P4) of described logic controller (3) links to each other with described actuator (4), the inlet wire (R) of described actuator (4) power supply, (S), (T) end links to each other with the power output end of described power supply switch circuit (1), described coder (6) is installed on the center shaft of described rotor (5), and is connected with the port (P6) of described logic controller (3) by the coder line.

2. elevator emergency detrainment device according to claim 1 is characterized in that: described logic controller (3) also has a power failure emergency operating signal input port (P1), and it links to each other with described power supply switch circuit (1).

3. elevator emergency detrainment device according to claim 1 is characterized in that: described logic controller (3) has a port (P7) in addition, and port (P7) connects an acoustic-optic alarm (7).

4. according to each described elevator emergency detrainment device of claim 1-3, it is characterized in that: described logic controller (3) also has a port (P8) in addition, and port (P8) connects a door district signal supervisory instrument (8).