CN205367371U - Accident moving protection device for elevator cage - Google Patents
Accident moving protection device for elevator cage Download PDFInfo
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- CN205367371U CN205367371U CN201520966293.9U CN201520966293U CN205367371U CN 205367371 U CN205367371 U CN 205367371U CN 201520966293 U CN201520966293 U CN 201520966293U CN 205367371 U CN205367371 U CN 205367371U
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Abstract
The utility model provides an accident moving protection device for elevator cage, includes car action detecting element, the unexpected the detecting unit of removal of car, the control unit, arresting gear and self -lock device, the control unit links to each other with car action detecting element, the unexpected the detecting unit of removal of car, arresting gear and self -lock device respectively. Car action detecting element for detect elevator car's operate condition. The car is unexpected to be removed the detecting unit and is used for listening the elevator car removal that whether meets accident, arresting gear is used for be in getting into door zone at elevator car and stops the ladder state of opening the door or receive operating instruction closed -door state and meet accident under the state at door zone and apply the brake elevator car when moving, self -lock device is used for being in high -speed running state at elevator car, the auto -lock is carried out at door zone standby state or when leaving the door zone state to arresting gear in the back of opening the door. Accident moving protection device for elevator cage has reduced the emergence probability of arresting gear malfunction effectively, has improved the security and the reliability of product.
Description
Technical field
This utility model relates to elevator technology field, particularly relates to a kind of accidental movement of elevator cage protection device.
Background technology
In GB7588-2003 " elevator manufacture and installation safety standard " No. 1 amendment of national standard, car accidental movement (unintendedcarmovement) is defined as by 3.18 articles: in onlocking zone and under door opening state, car leaves the movement of stop without instruction, does not comprise the movement that charge and discharge operations causes.Namely the requirement for car accidental movement protection device is that the car accidental movement when onlocking zone is protected.UCMP (UnintendedCarMovementProtectionsystem), namely car accidental movement protection device, is arranged on elevator, is mainly used in stop car and leaves the accidental movement of elevator cage of stop in onlocking zone and under door opening state.If accidental movement occurs in lift car, accidental movement of elevator cage protection device starting protection at once, by lift car stop, it is prevented that passenger is subject to, when passing in and out lift car, the injury that car accidental movement causes, and adds one safety guarantee for passenger.
Fig. 1 is the control flow chart of existing accidental movement of elevator cage protection device, refers to Fig. 1, and existing accidental movement of elevator cage protection device comprises the steps: first, it is determined that elevator whether normal operation.If elevator normal operation, then judging whether performance element has fault, performance element is the brake unit of stop elevator car, if performance element breaks down, performance element can direct action stop elevator car.If performance element does not break down, judging the operating state that lift car is current, during elevator normal operation, lift car can be in high-speed cruising state, enters door district and stop ladder door opening state, enabling Hou Men district holding state, receive one of which during operating instruction closes door state or leaves five kinds of operating states of a zone state in door district.No matter lift car is in above-mentioned five kinds of operating states any, and performance element is in the holding state ("on" position) of normal operation so that the execution action when lift car generation accidental movement.Whether detecting lift car there is accidental movement, and when detecting lift car generation accidental movement, performance element action is with the lift car of stop generation accidental movement.If elevator non-normal working, generally, elevator non-normal working is caused by elevator accident power-off or long-term power-off.When elevator generation accident power-off or long-term power-off, performance element also can power-off, now performance element can direct action stop elevator car.
In prior art, under elevator normal operating conditions, when lift car is positioned at any operating state, performance element (brake unit) is in the holding state ("on" position) of normal operation, although existing accidental movement of elevator cage protection device can realize safeguard protection under normal circumstances, but still have the disadvantage in that 1, owing to performance element is energized for a long time, reduce the life-span of the electrical equipment comprised in performance element, performance element electric elements inside fault easily occurs, performance element is made to have misoperation risk, and the electrical equipment of performance element is energized for a long time, add energy consumption, energy efficiency is low.2, performance element adopts stand-by power supply to power, if the long-term power-off of elevator or other reason make the electricity deficiency of stand-by power supply, and performance element dead electricity direct action, can cause that performance element has misoperation risk too.
Utility model content
This utility model provides a kind of accidental movement of elevator cage protection device, significantly reduces the probability of happening of brake unit misoperation, improves the safety and reliability of product, and can reduce energy consumption, save the energy.
This utility model solves it and technical problem is that what the following technical scheme of employing realized.
A kind of accidental movement of elevator cage protection device, protect for the braking when lift car generation accidental movement, accidental movement of elevator cage protection device includes car motion detection unit, car accidental movement detecting unit, control unit, brake unit and self-locking device, control unit respectively with car motion detection unit, car accidental movement detecting unit, brake unit and self-locking device are connected, wherein: car motion detection unit is for detecting the operating state of lift car, wherein the operating state of lift car includes high-speed cruising state, enter door district and stop ladder door opening state, enabling Hou Men district holding state, receive operating instruction in door district and close door state, leave a zone state；Car accidental movement detecting unit is used for detecting whether lift car accidental movement occurs；Brake unit stops when ladder door opening state Huo Men district receives operating instruction pass door state and accidental movement occurs in this state, lift car being braked for being in entrance door district at lift car；Self-locking device is for carrying out self-locking when lift car is in high-speed cruising state, enabling Hou Men district's holding state or leaves zone state to brake unit；Control unit controls the action executing of brake unit and self-locking device for the testing result according to car motion detection unit and car accidental movement detecting unit.
In this utility model preferred embodiment, above-mentioned car accidental movement detecting unit includes door state detection unit and speed detection unit, and door state detection unit is for detecting the state of elevator door, and speed detection unit is for detecting the velocity variations of lift car.
In this utility model preferred embodiment, above-mentioned brake unit includes driving structure and brake structure；Brake structure includes dynamic clamping plate and clamp plate, and dynamic clamping plate are oppositely arranged with clamp plate, moves between clamping plate with clamp plate for arranging the steel wire rope being connected with lift car；Driving structure to include the first electric magnet and electric magnet fork, electric magnet fork has attracted position and unlocked position；In attracted position, electric magnet fork is by the first electromagnetic actuation, and at unlocked position, electric magnet fork is discharged by the first electric magnet, drives structure to drive dynamic clamping plate to draw close to clamp plate with brake wire；Self-locking device includes the second electric magnet and limiting structure, limiting structure and electric magnet fork are against limit electric magnet fork towards unlocked position motion, second electric magnet is connected with limiting structure, the second electric magnet be used for driving limiting structure and electric magnet fork depart from against.
In this utility model preferred embodiment, above-mentioned driving structure also includes fork, swinging rack, latch hook, briquetting, voussoir, spring and moving axis；The voussoir that one end of spring is fixed, the other end arranges briquetting and is connected with briquetting；Voussoir has inclined plane near dynamic clamping plate and clamp plate side, and moving axis is against inclined plane and is subject to the extruding of voussoir when voussoir moves up and moves towards clamp plate direction；One end of latch hook can be rotatably set on the first axle, the other end hooks on briquetting when electric magnet fork is positioned at attracted position；One end of swinging rack is pressed on latch hook, the other end can be rotatably set on the second axle；One end of fork is fixed on swinging rack, the other end is pressed on one end of electric magnet fork；The middle part of electric magnet fork can be rotatably set on the 3rd axle, and one end of electric magnet fork is compressed by fork, the other end and the first electromagnetic actuation connect.
In this utility model preferred embodiment, with electric magnet fork adhesive during above-mentioned first electric magnet energising, release magnet fork during the first electric magnet power-off, drive during the second electric magnet energising limiting structure and electric magnet fork depart from against, the second electric magnet power-off time limit structure and electric magnet fork against.
In this utility model preferred embodiment; above-mentioned accidental movement of elevator cage protection device detects brake unit when elevator normal operation and/or whether self-locking device has fault; feed back when brake unit being detected and/or self-locking device breaks down fault message to apparatus for controlling elevator so that apparatus for controlling elevator to control elevator out of service, and control unit also controls self-locking device brake unit is carried out self-locking when brake unit and/or self-locking device break down.
In this utility model preferred embodiment, above-mentioned accidental movement of elevator cage protection device also detects elevator whether normal operation, and when elevator non-normal working being detected, control unit controls self-locking device and brake unit is carried out self-locking.
nullThe beneficial effects of the utility model are，Accidental movement of elevator cage protection device is by detecting the state of unit detection elevator cage operation and testing result being passed to control unit，Receive the testing result of detection unit transmission again through control unit and be in holding state according to testing result control performance element、The one of which of self-locking state and the state of execution，Brake unit is made to be in holding state when door district、It is in self-locking state during not gate district、Occur to be in execution state during accidental movement of elevator cage，Avoid the problem that the properly functioning middle performance element of elevator is chronically at holding state，Prevent the elevator malfunction fault because inefficacy and the misoperation of brake unit produce，Significantly reduce the probability of happening of misoperation，And when accidental movement of elevator cage, the occupant in car and article can be protected，Improve the safety and reliability of product.Further, by controlling the action sequence of the brake structure of brake unit and self-locking structure, reaching to control requirement, brake unit be energized when holding state, in self-locking state power-off, can reduce energy consumption, the saving energy.
For making advantage of the present utility model clearly, below in conjunction with accompanying drawing, this utility model embodiment is further described.
Accompanying drawing explanation
Fig. 1 is the control flow chart of existing accidental movement of elevator cage protection device.
Fig. 2 is the structural representation of the accidental movement of elevator cage protection device of this utility model preferred embodiment.
Fig. 3 is the structural representation of this utility model preferred embodiment brake unit and self-locking device.
Fig. 4 is the control flow chart of the accidental movement of elevator cage protection device of this utility model preferred embodiment.
Detailed description of the invention
For further setting forth that this utility model is reach technological means and effect that predetermined purpose is taked; below in conjunction with accompanying drawing and preferred embodiment; to according to the accidental movement of elevator cage protection detailed description of the invention of device that the utility model proposes, structure, feature and effect thereof, describe in detail as after.
Relevant of the present utility model aforementioned and other technology contents, feature and effect, can clearly appear from following cooperation in reference to the detailed description of the preferred embodiment of figure.By the explanation of detailed description of the invention, when can be reach technological means that predetermined purpose takes and effect is able to more deeply and concrete understanding to this utility model, but institute's accompanying drawing is only to provide reference and purposes of discussion, not it is used for this utility model is any limitation as.
Fig. 2 is the structural representation of the accidental movement of elevator cage protection device of this utility model preferred embodiment; refer to Fig. 2; when elevator runs; if in onlocking zone and under door opening state; lift car produces to leave the movement of stop without instruction; then lift car creates accidental movement, the accidental movement of elevator cage of this utility model embodiment protection device be mainly used in stop in onlocking zone and door opening state issue the lift car of raw accidental movement.Accidental movement of elevator cage protection device includes car motion detection unit 120, car accidental movement detecting unit 140, control unit 200, brake unit 320 and self-locking device 340.Control unit 200 is connected with car motion detection unit 120, car accidental movement detecting unit 140, brake unit 320 and self-locking device 340 respectively, wherein, car motion detection unit 120 is for detecting the operating state of lift car, and the operating state of lift car includes high-speed cruising state, enter door district stops ladder door opening state, enabling Hou Men district holding state, receive operating instruction in door district closes door state, leaves a zone state；Car accidental movement detecting unit 140 is used for detecting whether lift car accidental movement occurs；Brake unit 320 stops when ladder door opening state Huo Men district receives operating instruction pass door state and accidental movement occurs in this condition, lift car being braked for being in entrance door district at lift car；Self-locking device 340 is for carrying out self-locking when lift car is in high-speed cruising state, enabling Hou Men district's holding state or leaves zone state to brake unit 320；Control unit 200 controls the action executing of brake unit 320 and self-locking device 340 for the testing result according to car motion detection unit 120 and car accidental movement detecting unit 140.
Specifically, car motion detection unit 120 is for detecting the operating state of lift car and testing result passing to control unit 200.In running process of elevator, for instance arriving after the lift car upper and lower passenger of follow floor the process of the upper and lower passenger of destination, lift car can be positioned at different operating states along with sequential.Specifically, steadily stop at lift car, elevator door fully open for passenger pass in and out lift car and do not receive any instruction time, now lift car is positioned at enabling Hou Men district holding state；Beginning to shut off from elevator door the process completely closed after lift car receives operating instruction, lift car is located at a district and receives operating instruction pass door state；After elevator door completely closes, lift car initially moves off a district acceleration operation, and now lift car is positioned off enabling zone state；After the speed of service of lift car arrives target velocity, enter the high-speed cruising state traveled at the uniform speed；Lift car near destination time reduce speed now the flat bed onlocking zone of target approach floor control elevator door and open the door in the full opening of process of elevator door, now lift car is positioned at entrance door district and stops ladder door opening state；Elevator is again positioned at enabling Hou Men district holding state after steadily stopping, pass in and out lift car for passenger at destination.Generally; owing to lift car is positioned at the process entering the opening and closing relating to elevator door when door district stops ladder door opening state and receives operating instruction pass door state in door district; if lift car is when both states issue raw accidental movement; tend to the injury occurring that passenger and article are produced to shear and extrude, therefore set up the accidental movement of elevator cage that accidental movement protection device stop elevator occurs under these two kinds of states.
Car accidental movement detecting unit 140 is used for detecting whether lift car accidental movement occurs and testing result passes to control unit 200.Car accidental movement detecting unit 140 is such as provided in door state detection unit and the speed detection unit of lift car, door state detection unit is for detecting the state of elevator door, for instance be used for detecting elevator door be in opening process, fully open, in closing process or completely closed state.Speed detection unit is for detecting the velocity variations of lift car.If detecting in elevator door opening process or in closing process, lift car occurs in that velocity variations (being namely moved) can be confirmed as lift car and occur in that accidental movement.
Control unit 200 is such as provided in elevator control cabinet for controlling the controller of accidental movement of elevator cage protection device normal operation.Control unit 200 for controlling the action executing of brake unit 320 and self-locking device 340 according to car motion detection unit 120 and car accidental movement detecting unit 140 testing result.
Fig. 3 is the structural representation of this utility model preferred embodiment brake unit and self-locking device, refer to Fig. 3, in the present embodiment, brake unit 320 and self-locking device 340 are such as the parts of a kind of elevator rope gripper, by brake unit 320 by Braking on the traction steel-cable being connected with lift car with stop elevator car, but be not limited thereto.Brake unit 320 includes driving structure 322 and brake structure 324.Brake structure 324 includes dynamic clamping plate 3241 and clamp plate 3242, and dynamic clamping plate 3241 are oppositely arranged with clamp plate 3242, moves between clamping plate 3241 with clamp plate 3242 for arranging the steel wire rope 400 being connected with lift car.Structure 322 is driven to include the first electric magnet 3221, electric magnet fork 3222, fork 3223, swinging rack 3224, latch hook 3225, briquetting 3226, voussoir 3227, spring 3228 and moving axis 3229.Electric magnet fork 3222 has attracted position and unlocked position；When attracted position, electric magnet fork 3222 is by the first electric magnet 3221 adhesive, driving structure 322 to produce moment loading on briquetting 3226 by the mechanical lever transmission that electric magnet fork 3222, fork 3223, swinging rack 3224 and latch hook 3225 are formed, the dynamic balance upwards briquetting 3226 produced spring 3228 is lived；When unlocked position, electric magnet fork 3222 is discharged by the first electric magnet 3221, the balance in structure 322 is driven to be destroyed, briquetting 3226 and voussoir 3227 are popped up by spring 3228, moving axis 3229 is subject to the extruding of voussoir 3227 and moves towards clamp plate 3242 direction, promote dynamic clamping plate 3241 to clamp steel wire rope 400 near clamp plate 3242, namely by driving structure 322 to drive dynamic clamping plate 3241 to draw close to clamp plate 3242 with brake wire 400 and then stop elevator car simultaneously.
Specifically, the voussoir 3227 that one end of spring 3228 is fixed, the other end arranges briquetting 3226 and is connected with briquetting 3226；Voussoir 3227 has inclined plane 322a near dynamic clamping plate 3241 and clamp plate 3242 side, and moving axis 3229 is against inclined plane 322a and is subject to the extruding of voussoir 3227 when voussoir 3227 moves up and moves towards clamp plate 3242 direction；One end of latch hook 3225 can be rotatably set on the first axle 320a, and the other end of latch hook 3225 hooks release briquetting 3226 on briquetting 3226, when electric magnet fork 3222 is positioned at unlocked position when electric magnet fork 3222 is positioned at attracted position；One end of swinging rack 3224 is pressed on latch hook 3225, the other end can be rotatably set on the second axle 320b；One end of fork 3223 is fixed on swinging rack 3224, the other end is pressed on one end of electric magnet fork 3222；The middle part of electric magnet fork 3222 can be rotatably set on the 3rd axle 320c, and one end of electric magnet fork 3222 is compressed by fork 3223, the other end and the first electric magnet 3221 adhesive connect.In the present embodiment, being connected with electric magnet fork 3222 adhesive when the first electric magnet 3221 is energized, electric magnet fork 3222 is positioned at attracted position；The adhesive of release magnet fork 3222 during the first electric magnet 3221 power-off, electric magnet fork 3222 separates with the first electric magnet 3221 and moves towards unlocked position.
Self-locking device 340 includes the second electric magnet 342 and limiting structure 344, limiting structure 344 and electric magnet fork 3222 are against limit electric magnet fork 3222 towards unlocked position motion, second electric magnet 342 is connected with limiting structure 344, the second electric magnet 342 be used for driving limiting structure 344 and electric magnet fork 3222 depart from against.In the present embodiment, when the second electric magnet 342 is energized, limiting structure 344 is away from electric magnet fork 3222, and limiting structure 344 moves towards unlocked position without influence on electric magnet fork 3222；During the second electric magnet 342 power-off, limiting structure 344 near and abut against electric magnet fork 3222 limit electric magnet fork 3222 towards unlocked position motion.
Control unit 200 controls brake unit 320 and the action executing of self-locking device 340 by controlling the power on/off of the first electric magnet 3221 and the second electric magnet 342.Specifically, when car motion detection unit 120 detects that lift car is in high-speed cruising state, enabling Hou Men district's holding state or leaves zone state, when control unit 200 controls the first electric magnet 3221 and the power-off simultaneously of the second electric magnet 342, brake unit 320 is self-locking to prevent brake unit 320 misoperation by self-locking device 340.When car motion detection unit 120 detect lift car be in entrance door district stop ladder door opening state Huo Men district receive operating instruction close door state time, when control unit 200 controls the first electric magnet 3221 and the second electric magnet 342 is energized simultaneously, self-locking device 340 releases the self-locking to brake unit 320, and brake unit 320 is in the holding state of normal operation.When car motion detection unit 120 detects that lift car is in when entrance door district stops ladder door opening state Huo Men district reception operating instruction pass door state and car accidental movement detecting unit 140 also detects lift car generation accidental movement, control unit 200 controls second electric magnet 342 that is maintained with of the first electric magnet 3221 power-off and is energized, now lift car is braked by brake unit (320), the timely stop elevator car when lift car generation accidental movement.
Accidental movement of elevator cage protection device lift car be in entrance door district stop ladder door opening state Huo Men district receive occur when operating instruction closes door state accidental movement can timely stop elevator car, and can effectively prevent brake unit 320 misoperation when lift car is in high-speed cruising state, enabling Hou Men district's holding state or leaves zone state.In elevator normal course of operation, brake unit 320 and self-locking device 340 selectivity power on/off is controlled by control unit 200, avoid brake unit 320 and be chronically at the holding state (namely "on" position) of normal operation, extend the service life of brake unit 320, reduce accident power-off and misoperation risk that element fault causes, also reduce energy consumption simultaneously, save the energy.
Fig. 4 is the control flow chart of the accidental movement of elevator cage protection device of this utility model preferred embodiment; referring to Fig. 4, accidental movement of elevator cage protection device includes car motion detection unit 120, car accidental movement detecting unit 140, control unit 200, brake unit 320 and self-locking device 340.Control unit 200 is connected with car motion detection unit 120, car accidental movement detecting unit 140, brake unit 320 and self-locking device 340 respectively.The control method of ladder car accidental movement protection device comprises the steps:
First, detect and judge elevator whether normal operation.When elevator is in normal operation, utilize car motion detection unit 120 to detect the operating state of lift car, wherein the operating state of lift car include high-speed cruising state, enter door district stop ladder door opening state, enabling Hou Men district holding state, door district receive operating instruction close door state, leave a zone state.
Detect and judge whether brake unit 320 and/or self-locking device 340 have fault, if brake unit 320 and/or self-locking device 340 break down, control unit 200 controls self-locking device 340 and brake unit 320 is carried out self-locking, feedback fault message is to apparatus for controlling elevator simultaneously, and it is out of service to utilize apparatus for controlling elevator to control elevator, in order to the maintainer element to breaking down carries out Measuring error.If brake unit 320 and self-locking device 340 do not break down, it is judged that the operating state that lift car is current.
When detect lift car be in entrance door district stop ladder door opening state Huo Men district receive operating instruction close door state time, utilize control unit 200 to control brake unit 320 and be in the holding state of normal operation；Meanwhile, car accidental movement detecting unit 140 is utilized to detect whether lift car accidental movement occurs.Car accidental movement detecting unit 140 is such as provided in door state detection unit and the speed detection unit of lift car, door state detection unit is for detecting the state of elevator door, for instance be used for detecting elevator door be in opening process, in full open position, closing process or completely closed state.Speed detection unit is for detecting the velocity variations of lift car；Speed detection unit is for detecting the velocity variations of lift car.When detect also detect that lift car occurs in that velocity variations (being namely moved) while elevator door is in opening process or in closing process time, it is judged as lift car something unexpected happened mobile, send the information of lift car generation accidental movement to control unit 200.
When detecting that lift car is in entrance door district and stops under the door state of ladder door opening state Huo Men district reception operating instruction pass, and also when detecting lift car generation accidental movement, utilize control unit 200 to control brake unit 320 and lift car is braked.
When detecting that lift car is in high-speed cruising state, enabling Hou Men district's holding state or leaves zone state, utilize control unit 200 to control this self-locking device 340 and brake unit 320 is carried out self-locking.
When elevator is in non-normal working, generally, elevator non-normal working refers to elevator accident power-off or what long-term power-off caused.When just there is power-off in elevator, control unit 200 is after monitoring off-position, control unit 200 also utilizes stand-by power supply control self-locking device 340 that brake unit 320 is carried out self-locking, if hereafter elevator enters under long-term off-position, even if stand-by power supply is power-off also, now brake unit 320 self-locking, makes brake unit 320 produce misoperation thus without because of power-off, effectively prevents brake unit 320 from causing misoperation because of elevator accident power-off.
In the present embodiment, brake unit 320 includes the first electric magnet 3221, self-locking device 340 includes the second electric magnet 342, and control unit 200 controls brake unit 320 and the action executing of self-locking device 340 by controlling the power on/off of the first electric magnet 3221 and the second electric magnet 342.Specifically, when elevator normal operation and brake unit 320 and self-locking device 340 fault-free, when car motion detection unit 120 detects that lift car is in high-speed cruising state, enabling Hou Men district's holding state or leaves zone state, control unit 200 controls the first electric magnet 3221 and the power-off simultaneously of the second electric magnet 342, and brake unit 320 is self-locking to prevent brake unit 320 misoperation by self-locking device 340.When car motion detection unit 120 detect lift car be in entrance door district stop ladder door opening state Huo Men district receive operating instruction close door state time, when control unit 200 controls the first electric magnet 3221 and the second electric magnet 342 is energized simultaneously, self-locking device 340 releases the self-locking to brake unit 320, and brake unit 320 is in the holding state of normal operation.When car motion detection unit 120 detect lift car be in entrance door district stop ladder door opening state Huo Men district receive operating instruction close door state and car accidental movement detecting unit 140 also detect lift car generation accidental movement time, control unit 200 controls second electric magnet 342 that is maintained with of the first electric magnet 3221 power-off and is energized, now lift car is braked by brake unit (320), the timely stop elevator car when lift car generation accidental movement.
The beneficial effects of the utility model are, accidental movement of elevator cage protection device utilizes car motion detection unit 120 to detect the state of elevator cage operation, car accidental movement detecting unit 140 is utilized to detect whether lift car accidental movement occurs, control unit 200 is utilized to control the action executing of brake unit 320 and self-locking device 340 according to the testing result of this car motion detection unit 120 and this car accidental movement detecting unit 140, it is in entrance door district at lift car to stop when ladder door opening state Huo Men district receives operating instruction pass door state and accidental movement occurs in this condition, lift car being braked, it is in high-speed cruising state at lift car, enabling Hou Men district's holding state or utilize self-locking device 340 that brake unit 320 is carried out self-locking when leaving zone state.In elevator normal course of operation; brake unit 320 and self-locking device 340 selectivity power on/off is controlled by control unit 200; the brake unit 320 avoiding accidental movement of elevator cage protection device is chronically at the holding state (namely "on" position) of normal operation in the course of the work; extend the service life of brake unit 320; reduce the probability of happening of brake unit 320 misoperation; and when accidental movement of elevator cage, the occupant in car and article can be protected, improve the safety and reliability of product.Further, by controlling the action sequence of brake unit 320 and self-locking device 340, only the just energising when needing brake unit 320 be in the holding state of normal operation and perform braking maneuver, can reduce energy consumption, save the energy.
The above, it it is only embodiment of the present utility model, not this utility model is done any pro forma restriction, although this utility model is disclosed above with embodiment, but it is not limited to this utility model, any those skilled in the art, without departing within the scope of technical solutions of the utility model, when the technology contents of available described announcement is made a little change or is modified to the Equivalent embodiments of equivalent variations, in every case it is without departing from technical solutions of the utility model content, any simple modification above example made according to technical spirit of the present utility model, equivalent variations and modification, all still fall within the scope of technical solutions of the utility model.
Claims (7)
1. an accidental movement of elevator cage protection device, protect for the braking when lift car generation accidental movement, it is characterized in that, this accidental movement of elevator cage protection device includes car motion detection unit (120), car accidental movement detecting unit (140), control unit (200), brake unit (320) and self-locking device (340), this control unit (200) respectively with this car motion detection unit (120), this car accidental movement detecting unit (140), this brake unit (320) and this self-locking device (340) are connected, wherein:
This car motion detection unit (120), for detecting the operating state of lift car, wherein the operating state of lift car include high-speed cruising state, enter door district stop ladder door opening state, enabling Hou Men district holding state, door district receive operating instruction close door state, leave a zone state；
This car accidental movement detecting unit (140), is used for detecting whether lift car accidental movement occurs；
This brake unit (320), stops when ladder door opening state Huo Men district receives operating instruction pass door state and accidental movement occurs in this condition, lift car being braked for being in entrance door district at lift car；
This self-locking device (340), for carrying out self-locking when lift car is in high-speed cruising state, enabling Hou Men district's holding state or leaves zone state to this brake unit (320)；
This control unit (200), controls this brake unit (320) and the action executing of this self-locking device (340) for the testing result according to this car motion detection unit (120) and this car accidental movement detecting unit (140).
2. accidental movement of elevator cage protection device as claimed in claim 1; it is characterized in that; this car accidental movement detecting unit (140) includes door state detection unit and speed detection unit; this door state detection unit is for detecting the state of elevator door, and this speed detection unit is for detecting the velocity variations of lift car.
3. accidental movement of elevator cage protection device as claimed in claim 1, is characterized in that, this brake unit (320) includes driving structure (322) and brake structure (324)；This brake structure (324) includes dynamic clamping plate (3241) and clamp plate (3242), these dynamic clamping plate (3241) and clamp plate (3242) are oppositely arranged, for arranging the steel wire rope (400) being connected with lift car between this dynamic clamping plate (3241) with clamp plate (3242)；This driving structure (322) includes the first electric magnet (3221) and electric magnet fork (3222), and this electric magnet fork (3222) has attracted position and unlocked position；In attracted position, this electric magnet fork (3222) is by this first electric magnet (3221) adhesive, at unlocked position, this electric magnet fork (3222) is discharged by this first electric magnet (3221), and this driving structure (322) drives these dynamic clamping plate (3241) to draw close to brake this steel wire rope (400) to this clamp plate (3242)；This self-locking device (340) includes the second electric magnet (342) and limiting structure (344), this limiting structure (344) and this electric magnet fork (3222) are against moving towards unlocked position limiting this electric magnet fork (3222), this second electric magnet (342) is connected with this limiting structure (344), this second electric magnet (342) be used for driving this limiting structure (344) and this electric magnet fork (3222) depart from against.
4. accidental movement of elevator cage protection device as claimed in claim 3; it is characterized in that, this driving structure (322) also includes fork (3223), swinging rack (3224), latch hook (3225), briquetting (3226), voussoir (3227), spring (3228) and moving axis (3229)；This voussoir (3227) that one end of this spring (3228) is fixed, the other end arranges this briquetting (3226) and is connected with this briquetting (3226)；This voussoir (3227) has inclined plane (322a) near these dynamic clamping plate (3241) and clamp plate (3242) side, and this moving axis (3229) is against this inclined plane (322a) and is subject to the extruding of this voussoir (3227) when this voussoir (3227) moves up and moves towards clamp plate (3242) direction；One end of this latch hook (3225) can be rotatably set on the first axle (320a), the other end hooks on this briquetting (3226) when this electric magnet fork (3222) is positioned at attracted position；One end of this swinging rack (3224) is pressed on latch hook (3225), the other end can be rotatably set on the second axle (320b)；One end of this fork (3223) is fixed on one end that this swinging rack (3224) is upper, the other end is pressed on this electric magnet fork (3222)；The middle part of this electric magnet fork (3222) can be rotatably set on the 3rd axle (320c), and one end of this electric magnet fork (3222) is compressed by fork (3223), the other end is connected with this first electric magnet (3221) adhesive.
5. accidental movement of elevator cage protection device as claimed in claim 3; it is characterized in that; with this electric magnet fork (3222) adhesive during the energising of this first electric magnet (3221); this electric magnet fork (3222) is discharged during this first electric magnet (3221) power-off; drive during the energising of this second electric magnet (342) this limiting structure (344) and this electric magnet fork (3222) depart from against, during this second electric magnet (342) power-off this limiting structure (344) and this electric magnet fork (3222) against.
6. accidental movement of elevator cage protection device as claimed in claim 1, it is characterized in that, this accidental movement of elevator cage protection device detects this brake unit (320) when elevator normal operation and/or whether self-locking device (340) has fault, fault message is fed back to apparatus for controlling elevator so that this apparatus for controlling elevator control elevator is out of service when this brake unit (320) being detected and/or self-locking device (340) breaks down, and this control unit (200) also controls this self-locking device (340) and this brake unit (320) is carried out self-locking when this brake unit (320) and/or self-locking device (340) break down.
7. accidental movement of elevator cage protection device as claimed in claim 1; it is characterized in that; this accidental movement of elevator cage protection device also detects elevator whether normal operation; when elevator non-normal working being detected, this control unit (200) controls this self-locking device (340) and this brake unit (320) is carried out self-locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520966293.9U CN205367371U (en) | 2015-11-27 | 2015-11-27 | Accident moving protection device for elevator cage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520966293.9U CN205367371U (en) | 2015-11-27 | 2015-11-27 | Accident moving protection device for elevator cage |
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| CN205367371U true CN205367371U (en) | 2016-07-06 |
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| CN201520966293.9U Active CN205367371U (en) | 2015-11-27 | 2015-11-27 | Accident moving protection device for elevator cage |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253736A (en) * | 2015-11-27 | 2016-01-20 | 中联重科股份有限公司 | Elevator car accidental movement protection device and control method |
| CN107654545A (en) * | 2017-10-09 | 2018-02-02 | 快意电梯股份有限公司 | Elevator main brake block abrasion detection means and detection method |
| CN115043286B (en) * | 2022-06-08 | 2023-08-29 | 杭州西奥电梯有限公司 | Unexpected protection system that removes of elevator car |
-
2015
- 2015-11-27 CN CN201520966293.9U patent/CN205367371U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253736A (en) * | 2015-11-27 | 2016-01-20 | 中联重科股份有限公司 | Elevator car accidental movement protection device and control method |
| CN105253736B (en) * | 2015-11-27 | 2017-08-29 | 中联重科股份有限公司 | Accidental movement of elevator cage protection device and control method |
| CN107654545A (en) * | 2017-10-09 | 2018-02-02 | 快意电梯股份有限公司 | Elevator main brake block abrasion detection means and detection method |
| CN107654545B (en) * | 2017-10-09 | 2023-11-24 | 快意电梯股份有限公司 | Elevator host machine brake shoe abrasion detection device and detection method |
| CN115043286B (en) * | 2022-06-08 | 2023-08-29 | 杭州西奥电梯有限公司 | Unexpected protection system that removes of elevator car |
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