CN208037765U - A kind of drag device with manual rescue mechanism - Google Patents
A kind of drag device with manual rescue mechanism Download PDFInfo
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- CN208037765U CN208037765U CN201721839486.3U CN201721839486U CN208037765U CN 208037765 U CN208037765 U CN 208037765U CN 201721839486 U CN201721839486 U CN 201721839486U CN 208037765 U CN208037765 U CN 208037765U
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- worm
- driving
- wheel
- motor
- traction
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/0005—Constructional features of hoistways
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/12—Arrangements for effecting simultaneous opening or closing of cage and landing doors
- B66B13/125—Arrangements for effecting simultaneous opening or closing of cage and landing doors electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/0415—Driving gear ; Details thereof, e.g. seals actuated manually, e.g. additional safety system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/26—Positively-acting devices, e.g. latches, knives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
- B66B1/365—Means for stopping the cars, cages, or skips at predetermined levels mechanical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/0035—Arrangement of driving gear, e.g. location or support
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/026—Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
- B66B11/0293—Suspension locking or inhibiting means to avoid movement when car is stopped at a floor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
- B66B11/0446—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with screw-nut or worm-screw gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/12—Arrangements for effecting simultaneous opening or closing of cage and landing doors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
- B66B13/165—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/12—Counterpoises
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0037—Performance analysers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0043—Devices enhancing safety during maintenance
- B66B5/005—Safety of maintenance personnel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
- B66B5/0093—Testing of safety devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/021—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions the abnormal operating conditions being independent of the system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/028—Safety devices separate from control system in case of power failure, for hydraulical lifts, e.g. braking the hydraulic jack
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/08—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for preventing overwinding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
- B66B7/08—Arrangements of ropes or cables for connection to the cars or cages, e.g. couplings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Door Apparatuses (AREA)
- Types And Forms Of Lifts (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The utility model discloses a kind of drag devices with manual rescue mechanism, it include the elevator control system for controlling elevator operation, traction machine, the traction sheave being connected with traction machine, the hoist ropes of winding on the traction sheave, hoist ropes one end connects car, the other end connects counterweight, the coaxially connected worm gear of traction sheave, worm and wheel is meshed, to constitute the lockable mechanism of traction sheave, worm screw is connected with a protection motor, protection motor and traction machine are all made of servo motor and are made, isochronous controller controls traction machine according to the transmission ratio of worm and wheel and protects the rotating speed of motor respectively, keep the rotating ratio of worm and wheel synchronous with the holding of the transmission ratio of worm and wheel；When protecting motor load to be more than maximum set value, the power supply of elevator control system tripping protection motor and traction machine.The utility model can realize the reliable braking of traction sheave when elevator device has a power failure or breaks down, and be effectively prevented from car and rush to summit or the safety accident at crouching bottom.
Description
Technical field
The utility model is related to technical field of elevator manufacturing, more particularly, to a kind of safe elevator traction mechanism.
Background technology
In skyscraper, elevator is a kind of corollary equipment of indispensability, can be brought great convenience to occupant.Mesh
Before, with the development of economy, middle high-income group largely occurs, and the demand of villa is also being continuously increased, and correspondingly, is suitable for
The home lift of villa class building also begins to prevalence.Elevator includes mainly hoistway, a sedan-chair being liftably arranged in hoistway
Compartment, the driving mechanism to drive car to lift, currently, driving mechanism is traction-type driving mechanism mostly comprising one sets
The traction machine in well headroom is set, traction machine connects traction sheave, and hoist ropes is arranged on traction sheave, and one end of hoist ropes connects sedan-chair
Compartment, the other end connects a counterweight that can be lifted in hoistway, to balance the weight of car, to reduce the negative of traction machine
It carries.When the forward and reverse rotation of traction machine driving traction sheave, the hoist ropes of winding on the traction sheave moves back and forth, to realize car
Lifting, and counterweight is then reversely lifted with car.
Due to traction sheave make by frictional force drives hoist ropes movement, after elevator is used for a long time, hoist ropes with
It easy tos produce slipping phenomenon or control system between traction sheave to fail to the control of traction machine, so as to cause the quick of car
It rushes to summit or crouching bottom, less serious case leads to the impaired of passenger's body and elevator, serious to result even in passenger's death.For this purpose, people set
The various device and method that car safety when elevator is run can be improved are counted, wherein most important mode is set on traction machine
Set the arrestment mechanism of an Electromagnetic Control.When elevator power failure or because elevator failure control system cuts off the power supply of elevator
When, electromagnet dead electricity in arrestment mechanism and lose electromagnetic attraction, arrestment mechanism is acted by the active force of tripping spring at this time, i.e.,
Locking braking can be realized to traction machine；And elevator is when having electricity, the electromagnet in arrestment mechanism obtain it is electric, to make arrestment mechanism release
To the locking of traction machine, elevator can normal operation.
For example, disclosed one kind " elevator traction machine " in Chinese patent literature, notification number CN2401528Y, including
One end of pedestal, motor, worm gear case, worm screw, worm gear shaft, hanging feet, worm gear, traction sheave, arrestment mechanism, the worm gear shaft is equipped with partially
Heart set is equipped with tie-plate in the middle part of worm gear shaft, and tie-plate one end is mutually solid with worm gear, the other end and traction sheave mutually admittedly, in tie-plate and
Bearing is respectively set between worm gear and between tie-plate and traction sheave, adjustment is equipped in a pair of of hanging feet bottom of setting worm gear shaft
Gasket.When work, first power on, so that arrestment mechanism is in energized state by controlling switch, while motor passes through worm screw band
Dynamic worm gear operating, and then drive traction sheave rotation, the rope of winding on the traction sheave that can drive lift car by tie-plate
Lifting.When car runs to scheduled a certain destination, motor is set to stall by actuating control switch, while by brake
Structure is dynamic.Braking principle is as follows：When motor power-off, the solenoid valve dead electricity of arrestment mechanism, the work that a pair of of band-type brake passes through spring force
With locking braked wheel, motor shaft is set to stall rapidly by embracing the frictional force between the cap watt and braked wheel explained, to make elevator car
Compartment is stabilized ground stop layers.
However existing elevator traction mechanism still has following defect in secure context：Due to existing arrestment mechanism
Power comes from spring and electromagnet, and the frequency of use of arrestment mechanism is extremely low, that is to say, that arrestment mechanism is usually all in one
Kind static standby mode when therefore, it is necessary to brake, is easy to lead to the failure of braking, Huo Zheyin because of the reasons such as stuck of spring
The stuck of electromagnet causes arrestment mechanism to be difficult to reset unlock.In addition arrestment mechanism in locking traction machine or traction sheave still
Make by frictional force realization, therefore the reliability of its locking is not high.
Utility model content
Purpose of the utility model is to solve be difficult to reliably braking, safety present in existing elevator traction mechanism
Property not high problem, a kind of drag device with manual rescue mechanism is provided, can be when elevator device has a power failure or breaks down
The reliable braking for realizing traction sheave is effectively prevented from car and rushes to summit or the safety accident at crouching bottom.
To achieve the goals above, the utility model uses following technical scheme：
A kind of drag device with manual rescue mechanism, including：
Elevator control system is used to control the operation and fault detect of elevator；
Traction machine, the power source as driving car lifting；
The hoist ropes of the traction sheave being connected with traction machine and winding on the traction sheave constitutes the action of driving car lifting
Executing agency；
Worm gear mechanism, worm gear therein is coaxially connected with traction sheave, and worm and wheel is meshed, to constitute traction
The lockable mechanism of wheel；
Lazy-tongs include the protection motor connected with worm screw, controllable traction machine and the synchronous control for protecting motor speed
Device processed, protection motor use servo motor, the isochronous controller to control traction machine respectively according to the transmission ratio of worm and wheel
With the rotating speed of protection motor, keep the rotating ratio of worm and wheel synchronous with the holding of the transmission ratio of worm and wheel；
Manual rescue device, hoist ropes end is wound on it, makes needing the hoist ropes releasably wound when rescue
Lift car leveling.
When protecting motor and any one appearance of traction machine is abnormal, elevator control system tripping protection motor and traction machine
Power supply.
A worm gear mechanism is arranged in the utility model, and worm gear and traction sheave are coaxially connected.It is known that worm gear
Worm screw has self-locking, that is to say, that worm gear can not drive worm screw to rotate, and worm gear rotation can only be driven by worm screw.For this purpose, this
A protection motor that worm screw can be driven to rotate is arranged in utility model, and protects motor and traction machine to be all made of and accurately control
The servo motor of rotating speed.In this way, isochronous controller can need to control the rotating speed of traction machine according to the operation of car, at the same time,
The rotating speed that motor is protected according to the gearratio control of worm and gear, makes to remain synchronous regime between worm screw, worm gear.Namely
It says, worm gear at this time is to be driven by traction machine, and worm screw is then by motor-driven, the worm gear of protection as traction sheave
It is in mutually independent state with worm screw, is hindered to make worm screw not formed to the rotation of worm gear, protection motor is in zero load
State.When entire elevator device has a power failure, worm screw stops operating, you can reliable mechanical self-latching is formed to worm gear, to draging
Running wheel forms reliable braking.When the exception that protection motor and the traction machine in the utility model occur may include：Traction machine
Out of control that speed is caused to be more than maximum set value, worm gear can not be formed synchronous with worm screw at this time, and worm screw can hinder turning for worm gear automatically
It is dynamic, to can avoid rapid aerating-holding or the crouching bottom of car；Traction machine protects motor is out of control to cause worm gear and worm screw cannot essence
It is really synchronous, it can be formed between worm gear and worm screw at this time and contact with each other and interfere, protect the load of motor that can rise rapidly.In appearance
When stating abnormal, elevator control system can tripping protection motor and traction machine power supply, traction sheave rely on worm and gear self-locking
It acts on and reliably brakes, so that it is guaranteed that the safety of elevator operation.It is known that in the prior art, worm and gear is a kind of tool
The transmission mechanism for having self-locking effect, in order to improve safety, some detectable car lifting speeds can be arranged in people on elevator
Sensor, to cut off the power when fast lifting occurs in car and to brake traction machine.And the worm and gear of the utility model
Both there is self-locking, while may make up a reliable mechanical sensing device, on the one hand ensure to go out in power failure or traction machine
Traction sheave is reliably braked when existing abnormal conditions, on the other hand can timely perceive the improper operating of traction machine, Jin Erke
Safety when significantly hoisting elevator is run.When elevator faults operation exception, elevator cut-out power supply, worm gear mechanism is certainly
Lock, traction sheave stops operating, if there is passenger in car, needs to be rescued at the first time, avoids passenger in car panic,
It at this time can be by discharging the hoist ropes wound so that lift car leveling, this flat bed can also be on car with cage descending
It rises, is mainly determined according further to the relationship between car overall weight and balance counterweight weight.When elevator works normally
It waits, manual rescue device will enwind hoist ropes, hoist ropes cannot be made to unclamp, and it is solid to be also equivalent to hoist ropes and car at this time
Fixed.Manual rescue device can be operated by passenger in car, in this way, the passenger in car can carry out certainly at the first time
It rescues.
Preferably, the facewidth of the worm screw is smaller 1-3mm than the space width of worm gear, when protection motor drives worm and wheel
When keeping synchronous, discrete state is kept between worm tooth and worm-gear toothing.
The worm and gear of the utility model is not the transmission mechanism of a transmission power in elevator normal operation, due to
The facewidth of worm screw is smaller 1-3mm than the space width of worm gear, therefore can have between worm tooth and the tooth socket of worm gear there are one gap, to
Make to keep discrete state between worm tooth and worm-gear toothing, can avoid generating contact friction between worm and wheel, while reducing same
Walk controller to traction machine, protect motor speed control accuracy requirement, avoid because traction machine, protection motor between rotating speed it is light
Micro- deviation causes the frequent shutdown of elevator.
Preferably, one end of the worm screw is connected with protection motor, the other end of worm screw and one can drive worm screw to turn
Dynamic rescue facility is associated.
When elevator exception occurs and shuts down, worm and gear brakes traction sheave, at this point, passenger can pass through the rescuing machine of auxiliary
Structure drives worm screw rotation, to drive traction sheave rotation by worm gear, keeps car mobile and realizes flat bed nearby, passenger at this time
Can remove manually elevator gate and layer door and realize and save oneself.Unlike the prior art, the rescuing machine of the utility model
Structure not directly drives traction machine, that is to say, that during entire save oneself, traction sheave be in always worm and gear from lock control
Under system, rescue facility positively can drive traction sheave to rotate, on the contrary, traction sheave can not reversely drag rescue facility's action, from
And be effectively prevented from because the reasons such as the part getting stuck of rescue facility or error cause car rush to summit or crouching bottom.
Preferably, the rescue facility includes the rescue motor being connect with worm screw, the rescue motor and a standby electricity
Source is electrically connected.
In elevator normal operation, rescue motor is in shutdown status；When elevator occur having a power failure or abnormal conditions and cut off
Traction machine, protect motor power supply when, stand-by power supply can be rescue the motor short time in power supply, to make rescue motor that can drive
Traction sheave rotates, and then makes car with low speed elevation and flat bed nearby.
Preferably, the stand-by power supply is accumulator.
Since in emergency relief, car flat bed nearby only need to be made, therefore, accumulator can be used as spare in we
Power supply to be conducive to simplify structure, and facilitates passenger to use.
Preferably, the stand-by power supply is man-power generator, the man-power generator includes one and is arranged in car
Manpower driving element, when the power supply of lazy-tongs and traction machine is cut off, the passenger in car can pass through manpower driving member
Part makes the rotor of man-power generator rotate power generation, to drive rescue motor rotation, and then drives traction sheave by worm screw, worm gear
Rotation.
Man-power generator is conducive to most passengers and realizes passenger self-rescue by way of self-generating, to can avoid because storing
Battery malfunction caused by the reasons such as battery discharge leads to not save oneself, and is conducive to improve the reliability saved oneself.
Preferably, the manpower driving element includes the sliding slot being vertically situated in car side wall and is located on sliding slot
Side and it is rotatably supported in the rotation axis on bearing block, rotation axis is connected with the rotor of man-power generator, is equipped in sliding slot
Can slide up and down sliding block, and sliding block is hinged at the bar of trampling that can be rotated in perpendicular, and rotation axis is equipped with driving
Wheel is equipped with one-way driving mechanism between driving wheel and rotation axis, one end of a traction rope is connected on sliding block, traction rope it is another
End connect simultaneously wind on the drive wheel, be arranged with disc spring on the rotating shaft, the outer end of disc spring is connected with rotating wheel, disc spring it is interior
End is connected with the bearing block of rotation axis, and the bar of trampling has there are one position of readiness straight up and is turned out to level
The operating position of state, when trampling bar and being in operating position, passenger can trample downwards bar, to be moved downwards with movable slider
It is dynamic, and then drive driving wheel to rotate forward by traction rope, disc spring takes up accumulation of energy at this time, and driving wheel passes through one-way driving mechanism band
Turn moving axis rotates, and rotor is driven to rotate and generate electricity；When sliding block moves down in place, bar is trampled in release, and disc spring discharges energy
Amount, to drive driving wheel to rotate backward, traction rope band movable slider moves up reset at this time.
It is known that the strength of people's leg is significantly larger than the strength of hand, for this purpose, the utility model is creatively in car
Side wall on setting one it is moving up and down trample bar, when needing emergency relief, passenger can be fluctuated and trample bar outward, make to trample
Bar is in horizontal operating position, and passenger can easily trample bar at this time, is moved down to make to trample bar band movable slider,
And then driving wheel is driven to rotate forward by traction rope.Disc spring gradually takes up and accumulation of energy at this time, and driving wheel passes through single-direction transmission machine
Structure drives rotation axis rotation, and rotor is driven to rotate and generate electricity；When sliding block moves down in place, bar is trampled in release, and disc spring is released
Exoergic amount, to drive driving wheel to rotate backward, traction rope band movable slider moves up reset at this time.So on circulate, you can real
The lasting power generation of existing man-power generator.
Preferably, manual rescue device includes the worm gear mechanism of the roller and locking roller for winding hoist ropes
Loosen the manual driving device of hoist ropes with driving drum rotation.Roller can rotate, and roller is for winding hoist ropes, in worm gear
Under the locking of worm mechanism, roller is fixed from rotation, and the distance between hoist ropes and car will not change at this time, traction
Car can be normally drawn when taking turns work by hoist ropes；When traction sheave locking needs rescue, manual driving device driving rolling
Cylinder rotation, roller discharge hoist ropes in rotation so that the long hair of the hoist ropes between traction sheave and car changes, and is draging
In the case that running wheel does not rotate, car can lift realization flat bed.
The project plan comparison of manual driving device is more, can be various structures, preferably, manual driving device includes driving
Bar, the driving pulley being connected with drive rod, the synchronous belt of connecting worm and driving pulley, drive rod are extend into car.In sedan-chair
Rotation of drive rod in compartment, the driving pulley on drive rod pass through synchronous belt and drive worm screw rotation, the rotation of worm drive worm gear, worm gear
Roller can be driven to rotate.
It restricts preferably, manual driving device includes driving, the driving wheel being connected with worm screw, driving rope is matched with driving wheel
It closes, driving rope is extend into car.The drawing driving rope in car, driving rope band move driving wheel rotation, and driving wheel drives worm screw
Rotation, the rotation of worm drive worm gear, worm gear can drive roller to rotate.
Therefore, the utility model has the advantages that：Traction can be realized when elevator device has a power failure or breaks down
The reliable braking of wheel is effectively prevented from car and rushes to summit or the safety accident at crouching bottom.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the utility model.
Fig. 2 is a kind of structural schematic diagram of manpower driving element；
Fig. 3 is a kind of vertical view of manual rescue device of the utility model；
Fig. 4 is another structural schematic diagram of manual rescue device.
In figure：1, traction machine 2, worm gear mechanism 4, traction sheave 41, hoist ropes 5, protection motor 6, rescue
It helps motor 7, mounting platform 8, car 81, sliding slot 82, rotation axis 821, bearing block 83, sliding block 84, trample
Bar 85, driving wheel 86, traction rope 87, disc spring 10, right roller 14, the cylinder 16 that rolls left, synchronous belt 26, main belt
Wheel 28, driving wheel.
Specific implementation mode
The utility model is further described with specific implementation mode below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of drag device with manual rescue mechanism, including the installation that is arranged at the top of elevator shaft
Traction machine 1 on platform 7, traction machine is using servo motor, and in order to accurately control its rotating speed, carrying means are at driving sedan-chair
The power source of compartment lifting.A coaxially connected traction sheave 4 on the output shaft of traction machine is arranged with hoist ropes 41 on traction sheave, drags
One end of messenger is connected after bypassing angle pulley with car 8, and the other end of hoist ropes after angle pulley with counterweight 9 around being connected
It connects, traction sheave collectively forms the action actuating mechanism of driving car lifting with hoist ropes.When traction machine output torque is draged with driving
When running wheel rotates, the hoist ropes one end of winding on the traction sheave declines, and the other end rises, to drive the lifting of car.When with
When the car of hoist ropes one end connection rises, what is connect with the hoist ropes other end declines to re-synchronizing；Conversely, working as and hoist ropes one
When holding the cage descending of connection, what is connect with the hoist ropes other end rises to re-synchronizing.
In addition, the utility model needs that a worm gear mechanism 2 is arranged, the wheel shaft of wherein worm gear and traction sheave coaxially connects
It connects, the worm and wheel engagement being arranged on mounting platform.Since the worm and gear of intermeshing together has self-locking,
That is, worm gear can not drive worm screw to rotate, worm gear rotation can only be driven by worm screw.Therefore, intermeshing worm and gear
It may make up the lockable mechanism of traction sheave.
Certainly, in order to ensure the normal operation of elevator, the utility model further includes a lazy-tongs, so as to make worm screw with
The rotating ratio of worm gear is synchronous with the holding of the transmission ratio of worm and wheel.That is, when traction sheave and worm gear stop operating, snail
Bar remains stationary, worm screw at this time can form worm gear reliable self-locking；When the rotation of traction machine driving traction sheave, to make car
When lifting, worm gear follows wheel rotation, and lazy-tongs make worm screw rotate at this time, and makes rotating ratio and the worm screw of worm and wheel
It is synchronous with the holding of the transmission ratio of worm gear.In this way, worm screw will not form worm gear self-locking, traction sheave can normal rotation, and worm gear
Distinguish right traction sheave and lazy-tongs driving with worm screw, there is no the transmission of torque, synchronous machine at this time between worm gear and worm screw
Structure is in light condition.When elevator power failure or system occur abnormal, lazy-tongs and traction sheave are cut off the power simultaneously, this
When worm screw reliable self-locking can be formed to worm gear.It is understood that the utility model also needs one elevator controlling of setting
System to control the operation of elevator, while detecting the failure or abnormal conditions of elevator, timely moved to make
Make, to ensure the safety of elevator operation.Since elevator control system is the prior art that all elevators all have,
Specific description is not done in the present embodiment.
Specifically, the lazy-tongs of the utility model include the isochronous controller with servo control module, connect with worm screw
The protection motor 5 connect, protection motor equally use servo motor, isochronous controller to accurately control traction machine and protect motor
Rotating speed.Isochronous controller controls the rotating speed of traction machine according to the operating condition of lift car first, then according to worm and wheel
Gearratio control protection motor rotating speed, so that it is guaranteed that the transmission ratio of the rotating ratio of worm and wheel and worm and wheel keep
It is synchronous, and then make worm and worm wheel that independent rotation, protection motor at this time be kept to be in light condition.If the traction machine of elevator
Rotating speed control occur it is abnormal, generated so as to cause car lifting speed it is abnormal, or protection motor rotating speed control occur it is different
Often, worm gear and the rotating speed of worm screw can not match at this time, be interfered with each other to be formed between worm and gear, drive worm screw at this time
Protect the load of motor can rapid increase.When protection motor load is more than maximum set value or traction machine and protection motor
When deviation between rotating speed and setting value is more than permissible value, it is abnormal that elevator control system assert that elevator device occurs, and cuts at this time
The power supply of disconnected protection motor and traction machine, makes worm screw constitute the reliable self-locking to worm gear, to realize the reliable braking of traction sheave,
It avoids car occurs rushing to summit or the safety accident at crouching bottom.As long as it should be noted that protecting the rotating speed of motor in the utility model
When normal, then traction sheave can not drive worm gear quick rotation.And if when the rotating speed of protection motor is too fast, it loads in meeting rapidly
Rise, elevator control system can tripping protection motor and traction machine power supply, so that it is guaranteed that elevator operation safety.
In addition, the facewidth of the utility model worm screw 1-3mm small than the space width of worm gear, preferred value 2mm.In this way,
When protecting motor driving worm and wheel to keep synchronous, can make to keep discrete state between worm tooth and worm-gear toothing.Namely
It says, the gap of best 1mm is kept between worm tooth and worm-gear toothing, to avoid friction interference is generated between worm and worm wheel, it is ensured that
Protection motor is in light condition.
In order to which when elevator breaks down, the timely of passenger is saved oneself, corresponding rescue facility can be arranged in we, so as to tight
Anxious moment driving worm screw rotation, and then traction sheave rotation is driven by worm gear.Specifically, we can make one end and the protection of worm screw
Motor is connected, and the other end of worm screw is connected with a rescue motor 6, which is usually in shutdown status, that is,
It says, the motor shaft for rescuing motor follows worm gear to rotate together.When elevator occur having a power failure or abnormal conditions and cut off traction machine, protection
When the power supply of motor, passenger can press the button of saving oneself in car, to start rescue motor, rescue motor at this time and can be driven
Worm screw rotates, and then drives worm gear rotation by worm screw, final to drive traction sheave rotation, keeps car mobile and realizes and put down nearby
Layer, passenger can leave car in time and complete to save oneself.
In order to ensure reliably saving oneself in any case, a stand-by power supply being made of accumulator can be arranged in we, from
And it is rescue motor power supply in elevator power failure.In addition, stand-by power supply can also be one by the small-sized manpower of manually driven
Generator, so that the passenger in car completes emergent self-rescue by man-power generator self-generating for rescue motor power supply.It should
Man-power generator includes the generator unit for having stator and rotor（It is not shown in figure）, for drive rotor rotate manpower driving
Element.Passenger in car can make the rotor of man-power generator rotate power generation by manpower driving element, to drive rescue electricity
Machine rotates, and then drives traction sheave rotation by worm screw, worm gear.
Further, as shown in Fig. 2, manpower driving element includes the sliding slot 81 being vertically situated in car side wall and position
Above sliding slot and the rotation axis 82 that is rotatably supported on bearing block 821, rotation axis are connected with the rotor of generator unit,
To make rotation axis directly rotor can be driven to rotate.Preferably, chain can be respectively set on the armature spindle of rotation axis and generator unit
It takes turns, winding driving chain between two sprocket wheels is connected to make rotation axis pass through driving chain with rotor.In this way, we can
Generator unit is arranged at the top of car, to facilitate structure to arrange.In addition, the sliding block that can slide up and down is arranged in sliding slot
83, what being hinged at of sliding block can rotate in perpendicular tramples bar 84, and it is standby there are one straight up to trample bar tool
It position and is turned out to the operating position of horizontality.When trampling bar and being in position of readiness, tramples bar and be close to the interior of car
Side wall；When trampling bar and being in operating position, the limited block on sliding block, which makes to trample bar, is maintained at horizontality, in order to passenger to
Under trample bar.
Certainly, we also need to that a driving wheel 85 is arranged on the rotating shaft, the race of the edge setting U-shaped of driving wheel,
And one-way driving mechanism is set between driving wheel and rotation axis.On sliding block connect a traction rope 86, traction rope it is another
End connects and in the race of driving wheel.In this way, when passenger tramples bar downwards, you can band movable slider moves downwards
It is dynamic, to drive driving wheel to rotate forward by traction rope, and then rotation axis rotation is driven by one-way driving mechanism, with driving
Rotor is rotated and is generated electricity.It should be noted that we can also be located at one disc spring of rotating wheel side position winding on the rotating shaft
87, the outer end of disc spring is connected with the side of rotating wheel, and the inner end of disc spring is connected with the bearing block of rotation axis.As such, it is desirable to
When rescue, passenger can will first trample bar and be turned out to horizontal operating position, bar then be trampled downwards, to drive cunning
Block moves down, and then drives driving wheel to rotate forward by traction rope, and disc spring takes up accumulation of energy at this time, and driving wheel is by unidirectionally passing
Motivation structure drives rotation axis rotation, and rotor is driven to rotate and generate electricity；When sliding block moves down in place, bar, disk are trampled in release
Spring releases energy, and to drive driving wheel to rotate backward, traction rope band movable slider moves up reset at this time.It so moves in circles, i.e.,
Man-power generator can be made to continue to generate electricity.
Further, as shown in Figure 3,4, in the present embodiment, hoist ropes is two groups, therefore roller is also two groups, is respectively
Roll left cylinder 14 and right roller 10, and manual rescue device includes the worm and gear machine of the roller and locking roller for winding hoist ropes
The manual driving device of hoist ropes is loosened in structure and driving drum rotation.Roller can rotate, and roller is for winding hoist ropes, in snail
Under the locking of worm and gear mechanism, roller is fixed from rotation, and the distance between hoist ropes and car will not change at this time, drag
Running wheel can normally draw car when working by hoist ropes；When traction sheave locking needs rescue, manual driving device driving
Roller rotates, and roller discharges hoist ropes in rotation so that and the long hair of the hoist ropes between traction sheave and car changes,
In the case that traction sheave does not rotate, car can lift realization flat bed.The project plan comparison of manual driving device is more, can be a variety of
Structure, manual driving device include drive rod, the driving pulley 26 being connected with drive rod, and connecting worm is synchronous with driving pulley
Band 16, drive rod is extend into car.The rotation of drive rod in car, the driving pulley on drive rod drive snail by synchronous belt
Bar rotates, and worm drive worm gear rotation, worm gear can drive roller to rotate.Manual driving device includes that driving is restricted, with worm screw phase
Driving wheel 28 even, driving rope coordinate with driving wheel, and driving rope is extend into car.The drawing driving rope in car, driving rope
Drive driving wheel rotation, driving wheel that worm screw rotation, the rotation of worm drive worm gear, worm gear is driven roller to be driven to rotate.
Claims (10)
1. a kind of drag device with manual rescue mechanism, characterized in that including：
Elevator control system is used to control the operation and fault detect of elevator；
Traction machine, the power source as driving car lifting；
The action that the hoist ropes of the traction sheave being connected with traction machine and winding on the traction sheave constitutes driving car lifting executes
Mechanism；
Worm gear mechanism, worm gear therein is coaxially connected with traction sheave, and worm and wheel is meshed, to constitute traction sheave
Lockable mechanism；
Lazy-tongs include the protection motor, controllable traction machine and the isochronous controller for protecting motor speed being connect with worm screw,
Protect motor that servo motor, the isochronous controller is used to control traction machine and protection respectively according to the transmission ratio of worm and wheel
The rotating speed of motor keeps the rotating ratio of worm and wheel synchronous with the holding of the transmission ratio of worm and wheel；
When protecting motor and any one appearance of traction machine is abnormal, the electricity of elevator control system tripping protection motor and traction machine
Source；
Manual rescue device, hoist ropes end is wound on it, makes car needing the hoist ropes releasably wound when rescue
Flat bed.
2. a kind of drag device with manual rescue mechanism according to claim 1, characterized in that the tooth of the worm screw
Width is smaller 1-3mm than the space width of worm gear, when protecting motor driving worm and wheel to keep synchronous, between worm tooth and worm-gear toothing
Keep discrete state.
3. a kind of drag device with manual rescue mechanism according to claim 1, characterized in that the one of the worm screw
End is connected with protection motor, and the other end of worm screw is associated with the rescue facility that one can drive worm screw to rotate.
4. a kind of drag device with manual rescue mechanism according to claim 3, characterized in that the rescue facility
Include the rescue motor being connect with worm screw, the rescue motor is electrically connected with a stand-by power supply.
5. a kind of drag device with manual rescue mechanism according to claim 4, characterized in that the stand-by power supply
For accumulator.
6. a kind of drag device with manual rescue mechanism according to claim 4, characterized in that the stand-by power supply
For man-power generator, the man-power generator includes a manpower driving element being arranged in car, when lazy-tongs and is draged
When drawing the power supply of machine and being cut off, the passenger in car can make the rotor of man-power generator rotate power generation by manpower driving element,
To drive rescue motor rotation, and then traction sheave rotation is driven by worm screw, worm gear.
7. a kind of drag device with manual rescue mechanism according to claim 6, characterized in that the manpower driving
Element includes the sliding slot being vertically situated in car side wall and above sliding slot and is rotatably supported on bearing block
Rotation axis, rotation axis are connected with the rotor of man-power generator, and the sliding block that can slide up and down, the side hinge of sliding block are equipped in sliding slot
It is connected to the bar of trampling that can be rotated in perpendicular, rotation axis is equipped with driving wheel, is equipped between driving wheel and rotation axis unidirectional
One end of transmission mechanism, a traction rope is connected on sliding block, and the other end of traction rope is connected and wound on the drive wheel, is being rotated
Disc spring is arranged on axis, the outer end of disc spring is connected with rotating wheel, and the inner end of disc spring is connected with the bearing block of rotation axis, described
It tramples bar to have there are one position of readiness straight up and be turned out to the operating position of horizontality, work is in when trampling bar
When making position, passenger can trample downwards bar, to be moved down with movable slider, and then drive driving wheel just by traction rope
To rotation, disc spring takes up accumulation of energy at this time, and driving wheel drives rotation axis to rotate by one-way driving mechanism, and drive rotor to rotate and
Power generation；When sliding block moves down in place, bar is trampled in release, and disc spring releases energy, to drive driving wheel to rotate backward, at this time
Traction rope band movable slider moves up reset.
8. a kind of drag device with manual rescue mechanism according to claims 1 or 2 or 3 or 4 or 5 or 6 or 7,
It is characterized in, manual rescue device includes the worm gear mechanism and driving drum of the roller and locking roller for winding hoist ropes
The manual driving device of hoist ropes is loosened in rotation.
9. a kind of drag device with manual rescue mechanism according to claim 8, characterized in that manual driving device
Including drive rod, the driving pulley being connected with drive rod, the synchronous belt of connecting worm and driving pulley, drive rod extend into car
It is interior.
10. a kind of drag device with manual rescue mechanism according to claim 8, characterized in that manual actuation fills
It sets and restricts including driving, the driving wheel being connected with worm screw, driving rope coordinates with driving wheel, and driving rope is extend into car.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710965137 | 2017-10-17 | ||
| CN2017109651374 | 2017-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208037765U true CN208037765U (en) | 2018-11-02 |
Family
ID=63283437
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| CN201721701152.XU Expired - Fee Related CN207792401U (en) | 2017-10-17 | 2017-12-08 | A kind of two-shipper drag device |
| CN201711297826.9A Active CN109665406B (en) | 2017-10-17 | 2017-12-08 | Double-machine traction device |
| CN201711298668.9A Pending CN109665401A (en) | 2017-10-17 | 2017-12-08 | A kind of elevator emergent rescue mechanism |
| CN201711299460.9A Pending CN109665419A (en) | 2017-10-17 | 2017-12-08 | A kind of drag device with manual rescue device |
| CN201711298667.4A Pending CN109665418A (en) | 2017-10-17 | 2017-12-08 | A kind of elevator traction mechanism |
| CN201721701151.5U Expired - Fee Related CN207792432U (en) | 2017-10-17 | 2017-12-08 | A kind of drag device with manual rescue device |
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| CN201721839486.3U Expired - Fee Related CN208037765U (en) | 2017-10-17 | 2017-12-25 | A kind of drag device with manual rescue mechanism |
| CN201711424492.7A Pending CN109665395A (en) | 2017-10-17 | 2017-12-25 | Two-shipper towed elevator configured with safety return circuit detection system |
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| CN201721834840.3U Expired - Fee Related CN208103630U (en) | 2017-10-17 | 2017-12-25 | A kind of concealed two-shipper drag device of counterweight |
| CN201721837178.7U Expired - Fee Related CN208054690U (en) | 2017-10-17 | 2017-12-25 | Elevator configured with safety return circuit detecting system and manual rescue device |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721701152.XU Expired - Fee Related CN207792401U (en) | 2017-10-17 | 2017-12-08 | A kind of two-shipper drag device |
| CN201711297826.9A Active CN109665406B (en) | 2017-10-17 | 2017-12-08 | Double-machine traction device |
| CN201711298668.9A Pending CN109665401A (en) | 2017-10-17 | 2017-12-08 | A kind of elevator emergent rescue mechanism |
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| CN201711298667.4A Pending CN109665418A (en) | 2017-10-17 | 2017-12-08 | A kind of elevator traction mechanism |
| CN201721701151.5U Expired - Fee Related CN207792432U (en) | 2017-10-17 | 2017-12-08 | A kind of drag device with manual rescue device |
| CN201711424490.8A Pending CN109665394A (en) | 2017-10-17 | 2017-12-25 | Elevator traction mechanism with safety return circuit detection |
| CN201711425678.4A Pending CN109665403A (en) | 2017-10-17 | 2017-12-25 | A kind of concealed two-shipper drag device of counterweight |
| CN201721836246.8U Expired - Fee Related CN208249599U (en) | 2017-10-17 | 2017-12-25 | Elevator traction mechanism with safety return circuit detection |
| CN201711424501.2A Pending CN109665428A (en) | 2017-10-17 | 2017-12-25 | A kind of elevator door-motor system based on safety return circuit detection |
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| CN201711425712.8A Active CN109665426B (en) | 2017-10-17 | 2017-12-25 | Counter weight opposite traction mechanism of elevator |
| CN201721834896.9U Expired - Fee Related CN208103657U (en) | 2017-10-17 | 2017-12-25 | A kind of four door lift car |
| CN201711425729.3A Active CN109665396B (en) | 2017-10-17 | 2017-12-25 | Elevator lifting anti-misoperation mechanism |
| CN201711424564.8A Pending CN109665402A (en) | 2017-10-17 | 2017-12-25 | A kind of drag device with manual rescue mechanism |
| CN201721834840.3U Expired - Fee Related CN208103630U (en) | 2017-10-17 | 2017-12-25 | A kind of concealed two-shipper drag device of counterweight |
| CN201721837178.7U Expired - Fee Related CN208054690U (en) | 2017-10-17 | 2017-12-25 | Elevator configured with safety return circuit detecting system and manual rescue device |
| CN201711423198.4A Pending CN109665412A (en) | 2017-10-17 | 2017-12-25 | A kind of opposed drag device of elevator |
| CN201721838714.5U Expired - Fee Related CN208037802U (en) | 2017-10-17 | 2017-12-25 | A kind of drag device with safety tongs |
| CN201711424491.2A Pending CN109665421A (en) | 2017-10-17 | 2017-12-25 | Elevator traction mechanism with safety return circuit detection system |
| CN201711425699.6A Active CN109665417B (en) | 2017-10-17 | 2017-12-25 | Four-door elevator car |
| CN201721845421.XU Expired - Fee Related CN208037781U (en) | 2017-10-17 | 2017-12-25 | The opposed drag device of elevator |
| CN201721839184.6U Expired - Fee Related CN208037803U (en) | 2017-10-17 | 2017-12-25 | A kind of drag device with rescue door machine |
| CN201711425731.0A Pending CN109665416A (en) | 2017-10-17 | 2017-12-25 | A kind of counterweight arragement construction in elevator traction system |
| CN201721837182.3U Expired - Fee Related CN208037768U (en) | 2017-10-17 | 2017-12-25 | A kind of two-shipper towed elevator based on safety return circuit detection |
| CN201721839786.1U Expired - Fee Related CN207827627U (en) | 2017-10-17 | 2017-12-25 | A kind of counterweight arrangement in elevator traction system |
| CN201721838851.9U Expired - Fee Related CN207827610U (en) | 2017-10-17 | 2017-12-25 | The anti-error telephone-moving structure of elevator lifting |
| CN201721839185.0U Expired - Fee Related CN207827649U (en) | 2017-10-17 | 2017-12-25 | The opposed carrying means of elevator counterweight |
| CN201711425674.6A Pending CN109665422A (en) | 2017-10-17 | 2017-12-25 | Elevator configured with safety return circuit detection system and manual rescue device |
| CN201711425687.3A Pending CN109665407A (en) | 2017-10-17 | 2017-12-25 | A kind of two-shipper towed elevator based on safety return circuit detection |
| CN201721834837.1U Expired - Fee Related CN208631856U (en) | 2017-10-17 | 2017-12-25 | Two-shipper towed elevator configured with safety return circuit detection system |
| CN201721838853.8U Expired - Fee Related CN207827644U (en) | 2017-10-17 | 2017-12-25 | A kind of opposed tracting structure of elevator |
| CN201711423217.3A Pending CN109665420A (en) | 2017-10-17 | 2017-12-25 | A kind of drag device with safety tongs |
| CN201711425682.0A Pending CN109665429A (en) | 2017-10-17 | 2017-12-25 | A kind of gate layer door system based on safety return circuit detection |
| CN201721834750.4U Expired - Fee Related CN208544972U (en) | 2017-10-17 | 2017-12-25 | Elevator traction mechanism with safety return circuit detection system |
| CN201711425732.5A Pending CN109665423A (en) | 2017-10-17 | 2017-12-25 | A kind of drag device with rescue door machine |
| CN201820989189.5U Expired - Fee Related CN208544986U (en) | 2017-10-17 | 2018-06-26 | A kind of anti-error shifting self locking elevator of leveling |
| CN201810668905.4A Active CN109665424B (en) | 2017-10-17 | 2018-06-26 | Self-locking elevator for preventing mistaken movement of flat floor |
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- 2017-12-25 CN CN201721834750.4U patent/CN208544972U/en not_active Expired - Fee Related
- 2017-12-25 CN CN201711425732.5A patent/CN109665423A/en active Pending
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109665402A (en) * | 2017-10-17 | 2019-04-23 | 陕西小溪机电科技有限公司 | A kind of drag device with manual rescue mechanism |
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