CN110002312A - One kind is based on pressure sensing anti-shearing elevator cage door system and shearing prevention method - Google Patents
One kind is based on pressure sensing anti-shearing elevator cage door system and shearing prevention method Download PDFInfo
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- CN110002312A CN110002312A CN201910362129.XA CN201910362129A CN110002312A CN 110002312 A CN110002312 A CN 110002312A CN 201910362129 A CN201910362129 A CN 201910362129A CN 110002312 A CN110002312 A CN 110002312A
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- elevator
- control unit
- shearing
- unit
- cage door
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- 238000010008 shearing Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000002265 prevention Effects 0.000 title abstract description 6
- 230000033001 locomotion Effects 0.000 claims abstract description 33
- 238000012544 monitoring process Methods 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 11
- 238000012360 testing method Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 230000001174 ascending effect Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000011888 foil Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The present invention relates to one kind based on pressure sensing anti-shearing elevator cage door system and shearing prevention method, it include: control unit, elevator motion monitoring unit, pressure acquisition unit and elevator stopping signal output unit, the elevator motion monitoring unit is connected with described control unit, the pressure acquisition unit is respectively equipped on the upper door frame and lower door frame of elevator cage door, and the pressure acquisition unit is connected with described control unit, the elevator stopping signal output unit is connected with described control unit, the stop that control unit issues when squeezing for receiving instructs and stop instruction is sent to the safety return circuit and steel wire braking of elevator, it cuts off the safety return circuit and acts the steel wire braking.The present invention has general, reasonable and safety, can be used in the factory of elevator, new clothes and regular install additional, has biggish practical value.
Description
Technical field
The invention belongs to elevator safety technical fields, and in particular to one kind is based on pressure sensing anti-shearing elevator cage door system
System and shearing prevention method.
Background technique
As economy rapid development, city make rapid progress, miscellaneous skyscraper is increasing, is mounted on high level and builds
Role is also increasing in people's lives for elevator in building, becomes the important vehicles of people's daily trip.
Meanwhile elevator is also increasingly concerned by people, wherein lift car as a kind of mechanic-electrical special equipment using safe
Accidental movement make lift door frame generate extruding and shearing to passenger, this is a kind of breakneck accident, once occur
Caused consequence is extremely heavy, often results in the injures and deaths of passenger.
In the case where door-opened elevator, the movement of carriage is so that extruding and shearing of the lift door frame generation to passenger, are one
The state of kind extreme danger causes the accidents such as shearing, extruding, directly influences the life security of passenger.In fact, how to prevent
Shearing accident this problem always is the difficult problems of puzzlement elevator industry, but present case also allows of no optimist, for many years
Never producer can propose that effective solution method goes to prevent the generation of this accident, and either electrical design or machinery is anti-
Shield, is all often to set about in terms of control system, still could not tackle the problem at its root.Currently, industry is to the safeguard measure
Realization it is actually rare, most of is all to be prejudged by the protection of accidental movement of elevator cage to imminent accident
And stop elevator, but still there are when misfunctioning of brake can not effective stop the case where.
Therefore, how the operation conditions of carriage is monitored using device and detect whether it occurs to shear or squeeze, and
When by associated components come stop carriage, be the important safeguard measure of elevator.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of based on pressure sensing anti-shearing elevator cage door system and
Shear prevention method, have it is general, rationally and safety, the factory of elevator, new clothes and periodically install additional can be used, have compared with
Big practical value.
In order to solve the above technical problems, the technical scheme adopted by the invention is as follows:
One kind being based on pressure sensing anti-shearing elevator cage door system, comprising: control unit, elevator motion monitoring unit, pressure
Acquisition unit and elevator stopping signal output unit, wherein
Whether the elevator motion monitoring unit is connected with described control unit, be kept in motion and should for monitoring elevator
The trigger signal of motion state is sent to control unit；
Be respectively equipped with the pressure acquisition unit on the upper door frame and lower door frame of elevator cage door, and the pressure acquisition unit with
Described control unit be connected, for acquire the pressure value of upper door frame and lower door frame and send it to control unit carry out judgement be
No appearance squeezes situation；
The elevator stopping signal output unit is connected with described control unit, the system that control unit issues when squeezing for receiving
Stop instruction and the safety return circuit and steel wire braking that stop instruction is sent to elevator, cut off the safety return circuit and make
The steel wire braking movement.
Further, described control unit is set to the car top of the elevator, and described control unit includes: control
Device, radio communication circuit, charging and power supply circuit and A/D converter, wherein the radio communication circuit and the controller phase
Even, the charging and power supply circuit are connect with rechargeable battery, and the input terminal of the controller is electric with the charging and power supply respectively
Road is connected with A/D converter.
Further, the elevator motion monitoring unit include: be mounted on photoelectric detection system by elevator governor and
Wireless launcher, and the photoelectric detection system is connected by wireless launcher with the radio communication circuit.
Further, the pressure acquisition unit includes: strain gauge pressure sensor and strain testing electric bridge, described to answer
The both ends for becoming test electric bridge are connected with the strain gauge pressure sensor and the A/D converter respectively.
Further, the elevator stopping signal output unit includes: radio receiver and signal output apparatus, described
The input terminal of wireless signal receiving device is connected with the radio communication circuit, the output end of the wireless signal receiving device with
The input terminal of the signal output apparatus is connected, the output end of the signal output apparatus safety return circuit with the elevator respectively
It is connected with steel wire braking.
Further, the strain gauge pressure sensor is three.
In another aspect of this invention, propose it is a kind of according to mentioned-above anti-shearing elevator cage door system to elevator car
The method that extruding situation at door is detected, comprising the following steps:
(1) carriage accidental movement occurs under the condition of opening for elevator；
(2) elevator motion monitoring unit monitoring elevator is kept in motion, and the trigger signal of the motion state is sent to control
Unit processed triggers it as effective status；
(3) pressure acquisition unit acquisition elevator cage door upper door frame and lower door frame pressure value and send it to control unit into
Row judges whether occur squeezing situation: when the pressure value reaches the default extruding threshold value in control unit, control unit is issued
Stop instruction；
(4) elevator stopping signal output unit receives the stop instruction and stop instruction is sent to the safety return circuit of elevator
And steel wire braking, it cuts off the safety return circuit of elevator and acts the steel wire braking of elevator, stop elevator.
The beneficial effect comprise that the present invention is by monitoring the operation conditions of carriage and detecting whether it cuts
Cut or squeeze, in time by associated components come stop carriage, the effective guarantee safety of life and property of the people, have it is general,
Reasonable and safety can be used in the factory of elevator, new clothes and regular install additional, have biggish practical value, can push electricity
Terraced career development to guarantee public safety, protects the life of the people and property to be of great importance.
Detailed description of the invention
Fig. 1 is structural block diagram of the invention.
Fig. 2 is the flow chart of detection method.
The schematic diagram that Fig. 3 squeezes passenger when being ascending for elevator.
The schematic diagram that Fig. 4 squeezes passenger when being elevator downlink.
Wherein, control unit 1, elevator motion monitoring unit 2, pressure acquisition unit 3, elevator stopping signal output unit 4,
Passenger 5, carriage 6, upper door frame 7, lower door frame 8, strain gauge pressure sensor 9, hall door upper door frame 10, hall door lower door frame 11.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, combined with specific embodiments below to this
Invention is described in further detail.The embodiments described below is exemplary, and for explaining only the invention, and cannot be understood
For limitation of the present invention.Particular technique or condition are not specified in embodiment, according to the literature in the art described skill
Art or condition are carried out according to product description.
According to an embodiment of the invention, Fig. 1 is structural block diagram of the invention, a kind of shown referring to Fig.1, base of the present invention
In pressure sensing anti-shearing elevator cage door system, control unit, elevator motion monitoring unit, pressure acquisition list are specifically included that
Member and elevator stopping signal output unit.
According to an embodiment of the invention, described control unit is set to the car top of the elevator, as shown in Figure 1, institute
Stating control unit includes: controller, radio communication circuit, charging and power supply circuit (not shown) and A/D converter,
In, the radio communication circuit is connected with the controller, the charging and power supply circuit and rechargeable battery (not shown)
Connection, the input terminal of the controller are connected with the charging and power supply circuit and A/D converter respectively.According to the present invention one
A little embodiments, controller of the present invention are common control system, may include: microprocessor system or PLC control system, sheet
Invention is preferably microprocessor system.
According to an embodiment of the invention, as shown in Figure 1, the elevator motion monitoring unit includes: to be mounted on elevator speed limit
Photoelectric detection system and wireless launcher by device, and the photoelectric detection system passes through wireless launcher and described wireless
Whether telecommunication circuit is connected, be kept in motion for monitoring elevator and the trigger signal of the motion state is sent to control
Device, so that controller triggering is effective status, i.e. working condition.
The rotation of photoelectric detection system of the present invention detection elevator governor, when lift car is mobile, speed limit device wheel with
Rotation when, signal and is sent to controller by wireless launcher by optoelectronic switch triggering.
According to an embodiment of the invention, being respectively equipped with the pressure acquisition list on the upper door frame and lower door frame of elevator cage door
Member, as shown in Figure 1, the pressure acquisition unit includes: strain gauge pressure sensor and strain testing electric bridge, the strain is surveyed
The both ends of examination electric bridge are connected with the strain gauge pressure sensor and the A/D converter respectively, when Fig. 3 is ascending for elevator pair
The schematic diagram that passenger squeezes, the schematic diagram that Fig. 4 squeezes passenger when being elevator downlink are as shown in Figures 3 and 4, described
Strain gauge pressure sensor is respectively arranged on the upper door frame and lower door frame, when ascending for elevator (direction as shown in the figure),
The extruding situation for detecting gate lower door frame and hall door upper door frame, acquires the pressure value of lower door frame, when elevator downlink (side as shown in the figure
To) when, the extruding situation of gate upper door frame and hall door lower door frame is detected, acquires the pressure value of upper door frame, and by the pressure of acquisition
Value is sent to controller and carries out judging whether to occur to squeeze situation: reaching the default extruding threshold value in controller when the pressure value
When, that is, occur squeezing situation, controller issues stop instruction immediately.
According to some embodiments of the present invention, the particular number step limit of strain gauge pressure sensor of the present invention
System can require to be installed according to elevator running, and the present invention is installed as three.
According to an embodiment of the invention, as shown in Figure 1, the elevator stopping signal output unit includes: wireless receiving dress
It sets and signal output apparatus, the input terminal of the wireless signal receiving device is connected with the radio communication circuit, it is described wireless
The output end of signal receiving device is connected with the input terminal of the signal output apparatus, the output end point of the signal output apparatus
It is not connected with the safety return circuit of the elevator and steel wire braking, the stop instruction that controller issues when squeezing for receiving is simultaneously
Stop instruction is sent to the safety return circuit and steel wire braking of elevator, the safety return circuit is cut off and makes the steel wire
Rope brake movement, the prevention for being squeezed or being sheared well.
It is understood that the safety return circuit of elevator of the present invention is arranged in the elevator control cabinet；Institute of the present invention
The steel wire braking for stating elevator is arranged near elevator host.
In another aspect of this invention, propose it is a kind of according to mentioned-above anti-shearing elevator cage door system to elevator car
The method that extruding situation at door is detected, Fig. 2 are that the flow chart of detection method is specifically included referring to shown in Fig. 2
Following steps:
(1) elevator under the condition of opening, passenger pass in and out gate when or station near gate when, carriage accidental movement causes to multiply
Visitor is in the precarious position clamped, squeezed by the doorframe of gate and hall door；
(2) it is installed on the rotation that the photoelectric detection system by elevator governor detects limiter of speed wheel, confirmation elevator is movement
State sends a signal to controller immediately, so that controller triggers effective status；
(3) strain gauge pressure sensor acquires the lower door frame pressure value of elevator cage door and sends it to controller and judged
Whether appearance squeezes situation: when the pressure value reaches the default extruding threshold value in controller, controller issues stop instruction；More
Specifically, as shown in figure 3, extruding passenger condition has occurred when ascending for elevator, the foil gauge of gate lower door frame because squeeze and
Reach default and squeeze threshold value, controller issues stop instruction；
(4) strain gauge pressure sensor acquires the upper door frame pressure value of elevator cage door and sends it to controller and judged
Whether appearance squeezes situation: when the pressure value reaches the default extruding threshold value in controller, controller issues stop instruction；More
Specifically, as shown in figure 4, extruding passenger condition has occurred when elevator downlink, the foil gauge of gate upper door frame because squeeze and
Reach default and squeeze threshold value, controller issues stop instruction；
(5) radio receiver receives the stop instruction, and stop instruction is sent to elevator by signal output apparatus
Safety return circuit and steel wire braking, the safety return circuit of elevator is disconnected, while steel wire braking being allowed to act, stop electricity
Ladder.
In conclusion the present invention passes through the operation conditions of monitoring carriage and detects whether it occurs to shear or squeeze, and
When by associated components come stop carriage, the effective guarantee safety of life and property of the people, to have general, reasonable and safe
Property, it can be used in the factory of elevator, new clothes and regular install additional, there is biggish practical value, elevator career development can be pushed,
To guarantee public safety, the life of the people and property is protected to be of great importance.
In the present invention unless specifically defined or limited otherwise, the terms such as term " connected ", " connection " should do broad sense reason
Solution, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connection, be also possible to electricity
Connection；It can be directly connected, the connection inside two elements or two can also be can be indirectly connected through an intermediary
The interaction relationship of element.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
In the description of this specification, the description of reference term " embodiment ", " some embodiments " etc. means to combine the reality
It applies example or example particular features, structures, materials, or characteristics described is contained at least one embodiment of the present invention or example
In.In the present specification, schematic expression of the above terms need not be directed to identical embodiment or example.Moreover, retouching
The particular features, structures, materials, or characteristics stated can be tied in an appropriate manner in any one or more of the embodiments or examples
It closes.In addition, without conflicting with each other, those skilled in the art can be by different embodiments described in this specification
Or the feature of example and different embodiments or examples is combined.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant, at the same time, for those skilled in the art, the think of according to the application
Think, there will be changes in the specific implementation manner and application range.
Claims (7)
1. one kind is based on pressure sensing anti-shearing elevator cage door system characterized by comprising control unit, elevator motion
Monitoring unit, pressure acquisition unit and elevator stopping signal output unit, wherein
Whether the elevator motion monitoring unit is connected with described control unit, be kept in motion and should for monitoring elevator
The trigger signal of motion state is sent to control unit；
Be respectively equipped with the pressure acquisition unit on the upper door frame and lower door frame of elevator cage door, and the pressure acquisition unit with
Described control unit be connected, for acquire the pressure value of upper door frame and lower door frame and send it to control unit carry out judgement be
No appearance squeezes situation；
The elevator stopping signal output unit is connected with described control unit, the system that control unit issues when squeezing for receiving
Stop instruction and the safety return circuit and steel wire braking that stop instruction is sent to elevator, cut off the safety return circuit and make
The steel wire braking movement.
2. anti-shearing elevator cage door system according to claim 1, which is characterized in that described control unit is set to described
The car top of elevator, described control unit include: controller, radio communication circuit, charging and power supply circuit and A/D conversion
Device, wherein the radio communication circuit is connected with the controller, and the charging and power supply circuit are connect with rechargeable battery, institute
The input terminal for stating controller is connected with the charging and power supply circuit and A/D converter respectively.
3. anti-shearing elevator cage door system according to claim 2, which is characterized in that the elevator motion monitoring unit packet
It includes: the photoelectric detection system and wireless launcher being mounted on by elevator governor, and the photoelectric detection system passes through wirelessly
Emitter is connected with the radio communication circuit.
4. anti-shearing elevator cage door system according to claim 2, which is characterized in that the pressure acquisition unit includes:
Strain gauge pressure sensor and strain testing electric bridge, the both ends of the strain testing electric bridge respectively with the strain chip pressure
Sensor is connected with the A/D converter.
5. anti-shearing elevator cage door system according to claim 2, which is characterized in that the elevator stopping signal output is single
Member includes: radio receiver and signal output apparatus, input terminal and the wireless communication of the wireless signal receiving device
Circuit is connected, and the output end of the wireless signal receiving device is connected with the input terminal of the signal output apparatus, the signal
The output end of output device is connected with the safety return circuit of the elevator and steel wire braking respectively.
6. anti-shearing elevator cage door system according to claim 4, which is characterized in that the strain gauge pressure sensor
It is three.
7. a kind of anti-shearing elevator cage door system according to any one of claims 1-5 is to the extruding feelings at elevator cage door
The method that condition is detected, which comprises the following steps:
(1) carriage accidental movement occurs under the condition of opening for elevator；
(2) elevator motion monitoring unit monitoring elevator is kept in motion, and the trigger signal of the motion state is sent to control
Unit processed triggers it as effective status；
(3) pressure acquisition unit acquisition elevator cage door upper door frame and lower door frame pressure value and send it to control unit into
Row judges whether occur squeezing situation: when the pressure value reaches the default extruding threshold value in control unit, control unit is issued
Stop instruction；
(4) elevator stopping signal output unit receives the stop instruction and stop instruction is sent to the safety return circuit of elevator
And steel wire braking, it cuts off the safety return circuit of elevator and acts the steel wire braking of elevator, stop elevator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910362129.XA CN110002312A (en) | 2019-04-30 | 2019-04-30 | One kind is based on pressure sensing anti-shearing elevator cage door system and shearing prevention method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910362129.XA CN110002312A (en) | 2019-04-30 | 2019-04-30 | One kind is based on pressure sensing anti-shearing elevator cage door system and shearing prevention method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110002312A true CN110002312A (en) | 2019-07-12 |
Family
ID=67175394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910362129.XA Pending CN110002312A (en) | 2019-04-30 | 2019-04-30 | One kind is based on pressure sensing anti-shearing elevator cage door system and shearing prevention method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110002312A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112061904A (en) * | 2020-09-03 | 2020-12-11 | 毛先金 | Rotary elevator, control system and control method for rotary elevator |
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| JP2002060157A (en) * | 2000-08-22 | 2002-02-26 | Mitsubishi Electric Building Techno Service Co Ltd | Speed governor for elevator |
| CN204265166U (en) * | 2014-11-28 | 2015-04-15 | 苏州法奥电梯有限公司 | Prevent the safety control system of accidental movement of elevator cage |
| CN205151434U (en) * | 2015-11-06 | 2016-04-13 | 钱超逸 | Prevent safety arrangement of vertically shearing accident of elevator |
| CN106608573A (en) * | 2015-10-21 | 2017-05-03 | 路天民 | Elevator door opening prevention movement detection control device and safety braking device |
| CN106800228A (en) * | 2017-01-13 | 2017-06-06 | 佛山市欧汇电梯配件有限公司 | Car accidental movement safeguard protection method for arranging |
| CN107857180A (en) * | 2017-11-28 | 2018-03-30 | 广东省特种设备检测研究院珠海检测院 | A kind of detecting system and method for accidental movement of elevator cage defencive function |
| CN210029638U (en) * | 2019-04-30 | 2020-02-07 | 广东省特种设备检测研究院珠海检测院 | Anti-shearing elevator car door system based on pressure sensing |
-
2019
- 2019-04-30 CN CN201910362129.XA patent/CN110002312A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002060157A (en) * | 2000-08-22 | 2002-02-26 | Mitsubishi Electric Building Techno Service Co Ltd | Speed governor for elevator |
| CN204265166U (en) * | 2014-11-28 | 2015-04-15 | 苏州法奥电梯有限公司 | Prevent the safety control system of accidental movement of elevator cage |
| CN106608573A (en) * | 2015-10-21 | 2017-05-03 | 路天民 | Elevator door opening prevention movement detection control device and safety braking device |
| CN205151434U (en) * | 2015-11-06 | 2016-04-13 | 钱超逸 | Prevent safety arrangement of vertically shearing accident of elevator |
| CN106800228A (en) * | 2017-01-13 | 2017-06-06 | 佛山市欧汇电梯配件有限公司 | Car accidental movement safeguard protection method for arranging |
| CN107857180A (en) * | 2017-11-28 | 2018-03-30 | 广东省特种设备检测研究院珠海检测院 | A kind of detecting system and method for accidental movement of elevator cage defencive function |
| CN210029638U (en) * | 2019-04-30 | 2020-02-07 | 广东省特种设备检测研究院珠海检测院 | Anti-shearing elevator car door system based on pressure sensing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112061904A (en) * | 2020-09-03 | 2020-12-11 | 毛先金 | Rotary elevator, control system and control method for rotary elevator |
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