CN205772614U - Prevent the device of accidental movement of elevator cage - Google Patents
Prevent the device of accidental movement of elevator cage Download PDFInfo
- Publication number
- CN205772614U CN205772614U CN201620676637.7U CN201620676637U CN205772614U CN 205772614 U CN205772614 U CN 205772614U CN 201620676637 U CN201620676637 U CN 201620676637U CN 205772614 U CN205772614 U CN 205772614U
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- car
- accidental movement
- contact wheel
- guide rail
- elevator
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Abstract
This utility model discloses a kind of device preventing accidental movement of elevator cage, including, it is symmetrically mounted on the electronic rail clamping device of car top and contact wheel that guide rail facade is in close contact and the encoder that is fixed on contact wheel one end.It is in open mode at gate and layer door, verifies that the electric safety device of each door leaf is off；Contact triggers device and initially enters duty；Encoder accurately obtains the rotational angle of contact wheel, calculates contact wheel displacement on guide rail facade；Lift car status is judged by the displacement judging car.Provide the benefit that: owing to anti-moving device is arranged on car top, it is to avoid the transformation to every stop, saved repacking cost；It addition, by the electric safety switch of gate door leaf to preventing car accidental movement device from judging, when determining car accidental movement, device starts, and electronic rail clamping device steps up guide rail, stops the further accidental movement of car, effectively prevent the shearing accident of danger.
Description
Technical field
This utility model relates to a kind of elevator safety guard system；Particularly relate to one and prevent accidental movement of elevator cage
Device and the control method of device.
Background technology
Elevator is a kind of important special equipment, is the vertical transport instrument of the modern material progress of mark.Data show, cut
To the end of the year 2015, whole nation elevator total amount is more than 4,000,000, and China's elevator recoverable amount, annual production, annual increment are the world the
One.The electromechanical integration equipment of a kind of complexity of elevator, for guaranteeing the safer boarding of passenger, the safety protection function to elevator
Requirement step up.
Lift car is in the case of opening the door, and the accidental movement that lift car causes for various reasons is (such as: brake
The steel wire rope that the malfunctioning rotation of the traction sheave caused, the reduction of traction cause sliding etc. in race), and then create each
The shearing accident planted, ultimately results in various personal injury.
Several the typical elevator safety accidents that nationwide occurs in the recent period, are all to occur at the shearing thing of hall door entrance
Therefore.Preventing the defencive function of car accidental movement is the one way in which of hall door entrance shear protective, when elevator is in flat bed
When position and gate, layer door are opened, if it is confirmed that accidental movement of elevator cage occurs, prevent car accidental movement defencive function from opening
Dynamic, stop lift car to continue accidental movement.
At present, for the document preventing car accidental movement to be disclosed, e.g., patent publication No. is that CN102372206A is public
Having opened a kind of device preventing accidental movement of elevator cage, this technical scheme completes restriction sedan-chair by typical quadric chain
The action of railway carriage or compartment accidental movement, but also have the most perfect place:
1. the method needs, at every door layer by layer, to install lock hole, for skyscraper, installing engineering on guide rail
Measure bigger.
2. preventing car accidental movement to play, when car rests in stop every time, exposure mechanism will perform to stretch
Go out action, equipment frequent movement, high to the reliability requirement of equipment, in engineering practice, it is not easy to perform.
3., due to the normal variation of loading capacity in car, cause car can have certain small normal bit in vertical direction
Move.Owing to lock hole is manual installation, it is possible to can be in car after the normal variation of loading capacity, exposure mechanism can be stuck in lock
Determine in hole, and then affect the properly functioning of elevator.
It addition, patent publication No. is CN 103754726A disclose a kind of device preventing accidental movement of elevator cage and
Its method, this technical scheme electrically carries out speed monitoring by complete, for preventing the triggering of car accidental movement, but
Also there is an obviously the most perfect place:
1. this device needs transforming limiter of speed, and limiter of speed is increased rotary encoder, and this needs substantial amounts of
Old elevator carries out the replacing of limiter of speed, and quantities is huge, spends high.
2. the device that triggers of this device needs to increase special steel cable clamp, and this is for permanent magnet synchronous electric on the market
For machine, need extra increase, for machine room formula elevator, it is desirable to increasing steel cable clamp does not has again extra sky
Between, for non-steel wire rope type i.e. steel band traction elevator, it is impossible to increase existing rope brake.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes prior art defect, it is provided that a kind of simple in construction, installs
The device of accidental movement of elevator cage can be prevented easily and control the method for this device.
This utility model be the technical scheme is that a kind of device preventing accidental movement of elevator cage, and its feature exists
In, including, it is symmetrically and fixedly mounted to the electronic rail clamping device at car top outward and the contact wheel of the facade close contact of guide rail and consolidates
Encoder due to contact wheel one end；Can clamping guide-rail during described electronic rail clamping device action.
The outside of described contact wheel is metal annular knurl；Contact wheel and guide rail rolling friction.
Described contact wheel is fixed on the electronic rail clamping device in side by connecting support.
The beneficial effects of the utility model are: owing to anti-moving device is arranged on car top, it is to avoid change every stop
Make, saved repacking cost；When being defined as car accidental movement, device starts, and electronic rail clamping device steps up guide rail, stops car
Further accidental movement, effectively prevent danger shearing accident.This device is applied widely, breaks through steel wire rope stop
Constraint, i.e. not having steel wire rope or can cannot install use on the elevator of steel cable clamp.
Accompanying drawing explanation
Fig. 1 is the partial schematic diagram that this utility model prevents car accidental movement device；
Fig. 2 is the scheme of installation that this utility model prevents car accidental movement device；
Fig. 3 is the flow chart that this utility model controls to prevent mobile device.
In figure:
1, the most electronic rail clamping device 2. encoder 3. contact wheel 4. connects support
5,7. guide rail 6. car.
Detailed description of the invention
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings:
When lift car rests in each stop every time, elevator traction machine shuts down, the band-type brake Guan Bi of brake, elevator
Layer door is driven by the gate of car and opens, and opens period at gate and layer door, and passenger can freely come in and go out, and elevator is in normal work
Make the stage.
Along with passenger or the change of goods weight in car, the steel wire rope lifting car is caused to produce change in length
Changing, car may finally be made to deviate from the stop of original stop, but this falls within normal car and moves, elevator is just also at
Often working stage.
But it is under the state opened when car rests in stop, gate and layer door and (verifies the electrical safety dress of each door leaf
Put under the state being in disconnection), the traction machine of elevator is not obtaining in the case of instruction runs, and the car of elevator occurs
Move largely, when passenger is when being near doorway, the shearing accident easily caused danger.
The trigger condition of this device is, only when car stops each stop, and at gate and layer door in the state opened,
I.e. verifying under the state that the electric safety device of each door leaf is in disconnection, this set contact triggers the dress preventing car accidental movement
Put and just initially enter duty, to be checked measure car bigger accidental movement time, electronic rail clamping device just can step up guide rail, stop
The further accidental movement of car.In addition, this covering device will not enter mode of operation.
Saying further: when the car of elevator rests in each stop, the gate of car drives enabling by door motor
Meanwhile, gate can drive layer door.Manufacturer's standard according to elevator: the gate of lift car have checking its whether close electric
Safety switch, the layer door of every stop is also such, it may be said that the often fan door of elevator has electric safety switch to verify whether it closes
Close.When lift car normally moves up and down, the electric safety switch of door leaf in an ON state, when lift car rests in each layer
When standing, passenger normally come in and go out car time, door leaf opens, and the electric safety switch of door leaf is necessarily in off-state.
As shown in Figure 1 to Figure 2, this utility model prevents the device of accidental movement of elevator cage, including, symmetrical fixed installation
At the electronic rail clamping device 1,8 at car 6 top, the contact wheel 3 that is in close contact with the facade of guide rail and be fixed on contact wheel 3 one end
Encoder 2；Described electronic rail clamping device 1,8 can clamping guide-rail 5,7, the further motion of prevention car under conditions of triggering.
Encoder 2 carries out angle counting statistics when the rotation of contact wheel 3, is used for judging that contact wheel 3 stands in right rail 5
Displacement on face, i.e. judges the displacement of car with contact wheel 3.Specifically: owing to contact wheel 3 contact tightly exists
On the facade of right rail 5, remain the relation of rigidity due to car 6 and contact wheel 3 again, straight in right rail 5 of car 6
Line moves and can be converted into the rotation that contact wheel 3 is carried out on the facade of right rail 5, drives encoder 2 to carry out goniometer simultaneously
Number.
The outside of described contact wheel 3 is metal annular knurl, is mainly used in anti-skidding, prevents contact wheel 3 at the facade of right rail 5
Upper skidding, though contact wheel 3 with car 6 along guide rail move time, contact wheel 3 carries out rolling friction, rather than sliding friction.Described connect
Wheel trolley 3 is fixed on the electronic rail clamping device in side by connecting support 4, adjusts the installation site of contact wheel 3 by connecting support 4,
Can make contact wheel 3 contact tightly on the facade of right rail 5.
As it is shown on figure 3, this utility model controls the method preventing accidental movement of elevator cage device, comprise the following steps:
A. gate and layer door are in open mode, verify that the electric safety device of each door leaf is off；Gate door
The electric safety switch of fan is typically mounted on car middle and upper part, and distance sedan-chair top is relatively near, convenient control.I.e. rest in each layer when car
When standing, when gate is opened, each door leaf electric safety switch disconnects, and now prevents car accidental movement mechanism, starts monitoring unexpected
Mobile.When the gate of car closes, the most each door leaf electric safety switch is connected, and now prevents car accidental movement mechanism, no
In work.
B. contact triggers device and initially enters duty；The signal of trigger action is by being provided with contact wheel side
Electronic rail clamping device provides；
C. encoder accurately obtains the rotational angle of contact wheel, calculates contact wheel displacement d on guide rail facade,
The i.e. amount of movement of car 6 is that d(unit is: mm)；
D=π * d1* β/360(unit is: mm)
Wherein: d1 is that (unit is: mm) for the overall diameter of contact wheel
β is contact wheel rotational angle (unit is: degree)；
D. judge that whether displacement d of car is more than threshold value d0；d0For the threshold value of car slippage, threshold value d0Typically set
It is set to 100mm, it is also possible to by user sets itself；
E. when displacement d is more than threshold value d0Time, i.e. d ＞ d0Time, trigger action signal, the electronic rail clamping device in both sides moves simultaneously
Make to step up guide rail, stop the further accidental movement of car；After fixing a breakdown, elevator is properly functioning；
F. when displacement d is less than or equal to threshold value d0Time, i.e. d≤d0Time, it is believed that simply the normal little scope of car moves
(such as: the change of car internal load or the passenger large range of action in car) contact triggers device and will not trigger,
The most electronic rail clamping device will not start.After gate and landing door safety switch reclose, elevator can be properly functioning.
In this utility model, owing to anti-moving device is arranged on car top, it is to avoid the transformation to every stop, save
Repacking cost；It addition, it is unexpected to preventing car by the way of the electric safety switch of gate door leaf and contact wheel combine
Mobile device judges, to be determined for car accidental movement time, device starts, and electronic rail clamping device steps up guide rail, stops car
Further accidental movement.This device is applied widely, breaks through constraint to steel wire rope stop, i.e. can not have steel wire rope or
Person cannot install and use on the elevator of steel cable clamp.This device, debugging is convenient, cheap for manufacturing cost, it is simple to operation.
Claims (3)
1. the device preventing accidental movement of elevator cage, it is characterised in that include, is symmetrically and fixedly mounted to car (6) top
Contact wheel (3) that the facade of the electronic rail clamping device (1,8) in portion and guide rail is in close contact and be fixed on the volume of contact wheel (3) one end
Code device (2)；Can clamping guide-rail (5,7) during described electronic rail clamping device (1,8) action.
The device preventing accidental movement of elevator cage the most according to claim 1, it is characterised in that described contact wheel (3)
Outside be metal annular knurl；Contact wheel (3) and guide rail (5,7) rolling friction.
The device preventing accidental movement of elevator cage the most according to claim 1, it is characterised in that described contact wheel (3)
It is fixed on the electronic rail clamping device in side by connecting support 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620676637.7U CN205772614U (en) | 2016-06-30 | 2016-06-30 | Prevent the device of accidental movement of elevator cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620676637.7U CN205772614U (en) | 2016-06-30 | 2016-06-30 | Prevent the device of accidental movement of elevator cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205772614U true CN205772614U (en) | 2016-12-07 |
Family
ID=58126221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620676637.7U Active CN205772614U (en) | 2016-06-30 | 2016-06-30 | Prevent the device of accidental movement of elevator cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205772614U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105883532A (en) * | 2016-06-30 | 2016-08-24 | 天津市特种设备监督检验技术研究院 | Device for preventing elevator car from accidental movement and control method |
| CN109019241A (en) * | 2018-09-28 | 2018-12-18 | 李勇 | The triggering method that lift appliance, elevator are protected |
-
2016
- 2016-06-30 CN CN201620676637.7U patent/CN205772614U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105883532A (en) * | 2016-06-30 | 2016-08-24 | 天津市特种设备监督检验技术研究院 | Device for preventing elevator car from accidental movement and control method |
| CN105883532B (en) * | 2016-06-30 | 2018-10-19 | 天津市特种设备监督检验技术研究院 | A kind of control method preventing accidental movement of elevator cage |
| CN109019241A (en) * | 2018-09-28 | 2018-12-18 | 李勇 | The triggering method that lift appliance, elevator are protected |
| CN109019241B (en) * | 2018-09-28 | 2020-05-22 | 李勇 | Elevator device and triggering method for elevator protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 32 Space Road, Nankai District, Tianjin City, 300192 Patentee after: Tianjin Institute of Special Equipment Supervision and Inspection Technology (Tianjin Special Equipment Accident Emergency Investigation and Treatment Center) Address before: No. 32 Space Road, Nankai District, Tianjin City, 300192 Patentee before: Tianjin Inst of Special Appliances Supervision and Check Tech |
|
| CP01 | Change in the name or title of a patent holder |