CN205906844U - Prevent unexpected protection device who removes of elevator - Google Patents
Prevent unexpected protection device who removes of elevator Download PDFInfo
- Publication number
- CN205906844U CN205906844U CN201620771382.2U CN201620771382U CN205906844U CN 205906844 U CN205906844 U CN 205906844U CN 201620771382 U CN201620771382 U CN 201620771382U CN 205906844 U CN205906844 U CN 205906844U
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- CN
- China
- Prior art keywords
- elevator
- limiter
- speed
- detection switch
- door
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a prevent unexpected protection device who removes of elevator, including overspeed governor, safety tongs and the detection switch that opens the door, the position that is used for detecting elevator sedan -chair door on elevator car is installed to the detection switch that opens the door, the detection switch concatenation that opens the door is in among the supply circuit of the magnet coil of overspeed governor, when elevator flat bed and elevator sedan -chair door are opened, the supply circuit of the magnet coil of disconnection overspeed governor, when elevator flat bed and elevator sedan -chair door are closed, the supply circuit of the magnet coil of switch -on overspeed governor. The utility model discloses a setting up the electro -magnet coil power supply circuit that open the door detection switch and the detection switch that will open the door inserted the overspeed governor on elevator car, when elevator car is in flat bed position and elevator sedan -chair door and opens, as long as safety tongs of the lift appears removing in elevator car will be triggered and die the elevator car lock, move sooner, safer, the elevator car that has stopped condition of open door or switch door in -process from the root slides the car accident of hurting sb. 's feelings.
Description
Technical field
This utility model is related to elevator safety control technology field, especially a kind of guarantor for preventing elevator accidental movement
Protection unit.
Background technology
Get more and more with skyscraper, elevator, as the means of transport of vertical direction, has become as skyscraper and public affairs
The indispensable Architectural Equipment in place altogether, people's also more and more higher of the requirement to the safety that elevator runs, but, with elevator
The continuous increase of consumption, elevator accident is also continuously increased.
In various elevator accidents, occur at most also most serious be " car slipping ", that is, elevator door be in open mode or
When during switch gate, elevator accidental movement, cause passenger be sheared cause injury lethal.In order to prevent elevator from door opening state or opening
Accidental movement in door closing procedure, current common practice is that whether detection elevator anticipates during door-opened elevator state or switch gate
Outer movement, if elevator accidental movement, sends instruction by mainboard and controls limiter of speed action.As publication No. cn104229590a, public affairs
The Chinese publication file in December 24 2014 cloth day, discloses a kind of anti-slip control method of elevator, stops in Elevator landing
Only during state, detect the anomalous rotation situation of directive wheel by the Photoelectric Detection module being arranged on directive wheel, if directive wheel
Rotate abnormal, control mainboard sends instruction triggers limiter of speed action to drive elevator safety gear to step up car hoist ropes, prevents electricity
Terraced car car slipping.This kind of control method belongs to and controls afterwards, only could obtain detection signal after abnormal elevator is mobile and enter
Row braking, needs certain time from detection elevator accidental movement to braking, lift car still suffers from certain accidental movement distance；
In addition, in such control method elevator accidental movement needs setting detection original paper and judge process complexity, poor reliability, one-tenth
This height.
Utility model content
This utility model provides a kind of protection device preventing elevator accidental movement, is used for preventing elevator in level position
When accidental movement of elevator cage, that is, prevent elevator to be in accidental movement of elevator cage during door opening state or switch gate.
In order to solve the above problems, this utility model provides a kind of protection device preventing elevator accidental movement, including limit
Fast device and safety tongs, also include enabling detection switch, and described enabling detection switch is installed and is used on the elevator car detecting elevator
The position of gate, in the power supply circuits of electromagnet coil that described enabling detection switch is serially connected in described limiter of speed, described speed limit
Device is fixed in elevator hoistways or machine room, and described safety tongs is installed on the elevator car, and described limiter of speed passes through limiter of speed
Steel wire rope is connected with described safety tongs to drive described safety tongs action.
The protection device preventing elevator accidental movement that this utility model provides also has a following technical characteristic:
Further, described enabling detection switch is arranged on the door machine of lift car, when the dodge gate of lift car is beaten
When opening, described enabling detection switch disconnects.
Further, the width that the dodge gate of described lift car is opened is more than or equal to described detection of opening the door during 250mm
Switch off.
Further, described limiter of speed includes ratchet and pawl, and described ratchet and governor sheave are fixedly linked, described limit
During the electromagnet coil power of fast device, described ratchet is separated with described ratchet, described in during the electromagnet coil power-off of described limiter of speed
Ratchet is engaged with described ratchet.
Further, described protection device also includes elevator safety control loop, and described elevator safety control loop connects
Speed limiter state-detection switchs.
This utility model has the advantages that by arranging enabling detection switch on the elevator car, by inspection of opening the door
Slowdown monitoring switch accesses the electromagnet coil power supply circuits of limiter of speed, when elevator is in level position and elevator cage door opens, opens the door
Detection switch action disconnects the electromagnet coil power supply circuits of limiter of speed, and the electromagnet coil dead electricity of limiter of speed makes the elevator can not
Normal start, make limiter of speed be in pre- operating state, now, no matter elevator is moved up and down due to any reason, limiter of speed all by
It is triggered and drive safety tongs action to make lift car by locked on guide rail；After elevator cage door is closed, the electromagnetism of limiter of speed
The power supply circuits of iron coil are connected, and limiter of speed recovers normal operating conditions, the normal startup optimization of elevator ability, the electricity thereby guaranteeing that
The use safety of ladder, prevents from occurring accidental movement during Elevator landing；This utility model is directly controlled by setting up enabling detection switch
Limiter of speed processed is it is not necessary to arrange accidental movement of elevator cage detection means, low cost；This utility model belongs to Prior Control, electricity
When terraced car is in level position and elevator cage door opens, if lift car occur moving elevator safety tongs will be triggered by
Lift car is locked, and action is faster, safer, has prevented the lift car during door opening state or switch gate and slip from root
Car casualty accident.
Brief description
The circuit that Fig. 1 prevents enabling detection switch in the protection device of elevator accidental movement for this utility model embodiment connects
Connect schematic diagram；
Fig. 2 prevents limiter of speed state-detection switch in the protection device of elevator accidental movement for this utility model embodiment
Circuit connection diagram；
Fig. 3 prevents the work process schematic diagram of the protection device of elevator accidental movement for this utility model embodiment.
Specific embodiment
To describe this utility model in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that not rushing
In the case of prominent, the embodiment in this utility model and the feature in embodiment can be mutually combined.
In one embodiment of the protection device preventing elevator accidental movement of the present utility model as shown in Figure 1 to Figure 3,
This prevents the protection device of elevator accidental movement from including limiter of speed and safety tongs, also includes enabling detection switch 10, detection of opening the door
Switch 10 is installed and is used on the elevator car detecting the position of elevator cage door, and enabling detection switch 10 is serially connected in the electromagnetism of limiter of speed
In the power supply circuits of iron coil 20, limiter of speed is fixed in elevator hoistways or machine room, and safety tongs is installed on the elevator car,
Limiter of speed is connected with safety tongs by speed limiter wire rope and drives described safety tongs action.Elevator is prevented in above-described embodiment
The protection device of accidental movement, by arranging enabling detection switch on the elevator car, enabling detection switch is accessed limiter of speed
Electromagnet coil power supply circuits, realize the control to limiter of speed ratchet by switch gate；When elevator be in level position and
When elevator cage door is opened, enabling detection switch action disconnects the electromagnet coil power supply circuits of limiter of speed, pawl action, makes speed limit
Device is in pre- operating state, and now, no matter elevator is moved up and down due to any reason, and limiter of speed by action and drives safety tongs to move
Make lift car by locked on guide rail；After elevator cage door is closed, the power supply circuits of the electromagnet coil of limiter of speed are connected,
Limiter of speed recovers normal operating conditions, the normal startup optimization of elevator ability, the use safety of the elevator thereby guaranteeing that, prevents elevator
There is accidental movement during flat bed；This utility model directly controls limiter of speed pawl action by setting up enabling detection switch, is not required to
Accidental movement of elevator cage detection means, low cost are set；This utility model belongs to Prior Control, and lift car is in flat bed
Position and when elevator cage door is opened, if lift car occur moving elevator safety tongs will be triggered lift car is locked,
Action is faster, safer, has prevented the lift car car slipping casualty accident during door opening state or switch gate from root.
In the above-described embodiments, the protection device preventing elevator accidental movement also has following technical characteristic: detection of opening the door
The electromagnet coil of switch 10 and limiter of speed is connected and is powered by uninterrupted power source, and described power supply is identical with prior art, this
The innovation of utility model is the electromagnetism set up enabling detection switch and enabling detection switch is directly serially connected in limiter of speed
In the power supply circuits of iron coil.Enabling detection switch 10 is arranged on the door machine of lift car, when the dodge gate of lift car is beaten
When opening, enabling detection switch 10 disconnects.Preferably, the width that the dodge gate of lift car is opened is more than or equal to enabling during 250mm
Detection switch 10 disconnects, and thus can easily and accurately obtain the status information of elevator cage door, reduces clamshell doors detection switch
Performance requirement, it is to avoid position misjudgement occurs.Specifically, enabling detection switch 10 can adjust as needed, and elevator cage door is firm
Open and width that dodge gate is opened is believed that elevator cage door still in closed mode less than 250mm, because 250mm is just much smaller than
Normal human body width dimensions, now passenger can not pass in and out lift car, ensure that the personal safety of passenger.
In the above-described example, limiter of speed includes ratchet and pawl, and described ratchet and governor sheave are fixedly linked, described limit
During the electromagnet coil power of fast device, described ratchet is separated with described ratchet, described in during the electromagnet coil power-off of described limiter of speed
Ratchet is engaged with described ratchet.Thus, when elevator is in flat bed state and elevator cage door opens, the electromagnet coil of limiter of speed
Dead electricity, the ratchet of limiter of speed is engaged with ratchet, now the gear teeth meshing of ratchet and ratchet but still there is certain gap, ratchet with
There is no interaction force, that is, limiter of speed is now in pre- operating state between the gear teeth of ratchet；In the prior art, ratchet is usual
It is fixedly linked with governor sheave, governor sheave is connected with the safety tongs on lift car by speed limiter wire rope, in limit
When fast device is in above-mentioned pre- operating state, as long as lift car produces moving, the safety tongs on lift car will be by limiter of speed
Steel wire rope drives governor sheave to rotate, because now the ratchet of limiter of speed is engaged with ratchet, governor sheave is in the work of ratchet
With under can not rotate, speed limiter wire rope will react on safety tongs so that lift car is locked at elevator by safety tongs action leads
On rail.
The protection device preventing elevator accidental movement in the above-described embodiments also includes elevator safety control loop, described peace
Full control loop connects speed limiter state-detection switch 30.It is understood that elevator safety control loop is prior art
In conventional, indispensable safety control module, it is also commonly used in the art that safe control loop has limiter of speed state detection unit
Technological means, will not be described here.
It should be added that, in the above-described embodiments, the ratchet of the electromagnet coil power-off time limit speed device of limiter of speed
Engage with ratchet, enabling detection switch is serially connected in the power supply circuits of the electromagnet coil of limiter of speed, and elevator cage door opens the time limit
The electromagnet coil power-off of fast device；If the limiter of speed adopting is that during solenoid energising, ratchet is engaged with ratchet, needs will be examined
Slowdown monitoring switch is arranged to detection switch closure when elevator cage door is opened, and the power supply circuits of the electromagnet coil of limiter of speed are connected.This Shen
Innovation please is the electric magnet set up elevator cage door enabling detection switch and enabling detection switch is connected directly between limiter of speed
In the power supply circuits of coil, the above-mentioned selection with regard to limiter of speed, enabling detection switch is regarded as the embodiment in the application
Substitute equivalents, should fall into the protection domain of the application.
Finally it is noted that above example, only in order to the technical solution of the utility model to be described, is not intended to limit；
Although being described in detail to this utility model with reference to the foregoing embodiments, it will be understood by those within the art that:
It still can be modified to the technical scheme described in foregoing embodiments, or wherein some technical characteristics are carried out etc.
With replacement；And these modifications or replacement, do not make the essence of appropriate technical solution depart from this utility model each embodiment technology
The spirit and scope of scheme.
Claims (5)
1. a kind of protection device preventing elevator accidental movement, including limiter of speed and safety tongs it is characterised in that also including opening the door
Detection switch, described enabling detection switch is installed and is used for detecting the position of elevator cage door on the elevator car, described enabling detection
Switch in the power supply circuits of electromagnet coil being serially connected in described limiter of speed, described limiter of speed is fixed on elevator hoistways or machine
In room, described safety tongs is installed on the elevator car, described limiter of speed by speed limiter wire rope be connected with described safety tongs with
Drive described safety tongs action.
2. protection device according to claim 1 is it is characterised in that described enabling detection switch is arranged on lift car
On door machine, when the dodge gate of lift car is opened, described enabling detection switch disconnects.
3. protection device according to claim 2 is it is characterised in that the width opened of the dodge gate of described lift car is big
In or when being equal to 250mm described enabling detection switch disconnect.
4. protection device according to claim 1 is it is characterised in that described limiter of speed includes ratchet and pawl, described spine
Wheel is fixedly linked with governor sheave, and during the electromagnet coil power of described limiter of speed, described ratchet is separated with described ratchet, institute
State limiter of speed electromagnet coil power-off when described ratchet engage with described ratchet.
5. protection device according to claim 1 is it is characterised in that described protection device also includes elevator safety controls back
Road, described elevator safety control loop connects speed limiter state-detection switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620771382.2U CN205906844U (en) | 2016-07-21 | 2016-07-21 | Prevent unexpected protection device who removes of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620771382.2U CN205906844U (en) | 2016-07-21 | 2016-07-21 | Prevent unexpected protection device who removes of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205906844U true CN205906844U (en) | 2017-01-25 |
Family
ID=57805663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620771382.2U Expired - Fee Related CN205906844U (en) | 2016-07-21 | 2016-07-21 | Prevent unexpected protection device who removes of elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205906844U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006317A (en) * | 2016-07-21 | 2016-10-12 | 西继迅达（许昌）电梯有限公司 | Protection device and method for preventing accidental elevator movement |
| CN109292566A (en) * | 2017-07-24 | 2019-02-01 | 上海峰景移动科技有限公司 | A kind of automatic detecting system that elevator carriage is oppressive and logic |
| CN113651204A (en) * | 2021-08-30 | 2021-11-16 | 浙江省特种设备科学研究院 | Method and device for detecting progressive safety tongs of elevator by no-load compensation method |
-
2016
- 2016-07-21 CN CN201620771382.2U patent/CN205906844U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006317A (en) * | 2016-07-21 | 2016-10-12 | 西继迅达（许昌）电梯有限公司 | Protection device and method for preventing accidental elevator movement |
| CN106006317B (en) * | 2016-07-21 | 2019-03-12 | 西继迅达（许昌）电梯有限公司 | A kind of protective device and method preventing elevator accidental movement |
| CN109292566A (en) * | 2017-07-24 | 2019-02-01 | 上海峰景移动科技有限公司 | A kind of automatic detecting system that elevator carriage is oppressive and logic |
| CN113651204A (en) * | 2021-08-30 | 2021-11-16 | 浙江省特种设备科学研究院 | Method and device for detecting progressive safety tongs of elevator by no-load compensation method |
| CN113651204B (en) * | 2021-08-30 | 2022-10-11 | 浙江省特种设备科学研究院 | Method and device for detecting progressive safety tongs of elevator by no-load compensation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170125 Termination date: 20170721 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |