CN110980486A - Safety protection device for preventing elevator from falling - Google Patents
Safety protection device for preventing elevator from falling Download PDFInfo
- Publication number
- CN110980486A CN110980486A CN201911377347.7A CN201911377347A CN110980486A CN 110980486 A CN110980486 A CN 110980486A CN 201911377347 A CN201911377347 A CN 201911377347A CN 110980486 A CN110980486 A CN 110980486A
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- CN
- China
- Prior art keywords
- supporting plate
- motor
- elevator
- switch
- rotating wheel
- Prior art date
- 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.)
- Pending
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- 239000004020 conductor Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims 8
- 230000005540 biological transmission Effects 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
- B66B13/28—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers between car or cage and wells
- B66B13/285—Toe guards or apron devices
Landscapes
- Elevator Door Apparatuses (AREA)
Abstract
The invention discloses a safety protection device for preventing an elevator from falling, which comprises a touch panel, a first switch and a second switch, wherein the touch panel is arranged on the touch panel; the supporting plate is fixedly connected with the touch plate through a plurality of moving parts; the sliding rail is arranged in the sliding groove of the supporting plate; the touch panel switch is fixedly arranged on the supporting plate; the rotating wheel A is fixedly arranged at the bottom of the supporting plate; the belt, the motor and the rotating wheel B, wherein the rotating wheel A is matched with the rotating wheel B fixed on the output shaft of the motor through the belt; the touch panel switch normally closed contact is connected in series with a motor controller lead which enables the motor to rotate forwards; a door lock switch A; the door lock switch B and the in-place limit switch are arranged at the rear end of the supporting plate. The problem of among the prior art at present the passenger in the elevator take off the sedan-chair door passenger because of blindly saving oneself and step on empty very easily and fall to the well in 0.15 m's clearance is solved, avoided the passenger in the elevator to take off the dangerous condition that the sedan-chair door falls the well in blindly saving oneself, prevented the emergence of incident.
Description
Technical Field
The invention belongs to the technical field of elevators, and relates to a safety protection device for preventing an elevator from falling.
Background
According to the current elevator manufacturing and installation safety code GB 7588 and 2003/XG1-201511.2.1, the following specifications are provided: the horizontal distance between the inner surface of an elevator shaft and the edge of a car sill, a car door frame or a sliding door close to a door opening is not more than 0.15m, the size deviation exists during the construction of the elevator shaft, and in order to ensure the stable and rapid running of the car in the shaft, a protective net, a color steel plate and the like are arranged in the elevator shaft so as to ensure that the horizontal distance meets the requirement; sometimes when the elevator breaks down, the passenger in the elevator can blindly save oneself and take off the sedan-chair door, and the passenger steps on empty very easily and falls to the well in from 0.15 m's clearance, leads to the incident to take place.
Disclosure of Invention
In order to solve the technical problem, the invention provides a safety protection device for preventing an elevator from falling.
The invention is realized by the following technical scheme.
The invention provides a safety protection device for preventing an elevator from falling, which comprises a touch panel;
the supporting plate is fixedly connected with the touch plate through a plurality of moving parts, and the touch plate can be contacted with or separated from the supporting plate under the action of the moving parts;
the sliding rails are arranged in sliding grooves corresponding to the sliding rails on the supporting plate;
the touch panel switch is fixedly arranged on the supporting plate, and a moving contact of the touch panel switch is positioned in a gap between the touch panel and the supporting plate; when the touch plate is contacted with the supporting plate, the touch plate can press the touch plate switch;
the rotating wheel A is fixedly arranged at the bottom of the supporting plate;
the belt, the motor and the rotating wheel B, wherein the rotating wheel A is matched with the rotating wheel B fixed on the output shaft of the motor through the belt;
the touch panel switch normally closed contact is connected in series with a motor controller lead which enables the motor to rotate forwards;
the normally open movable contact of the door lock switch A is connected in series with a motor controller lead wire which enables the motor to rotate forwards, and the normally closed stationary contact of the door lock switch A is connected in series with a motor controller lead wire which enables the motor to rotate backwards;
the normally closed static contact of the door lock switch B is connected with a lifting circuit of the elevator in series;
the in-place limit switch is connected on a motor controller lead wire which enables the motor to rotate reversely in series; the door lock switch B and the in-place limit switch are arranged at the rear end of the supporting plate.
When the elevator door lock is installed, the two sliding rails, the motor, the door lock switch B, the in-place limit switch and the motor controller are installed at the bottom of the elevator car door, the position installation can be referred to in the figure, and the door lock switch A is installed on the car door.
The supporting plate is also fixedly provided with a guide fixer, and the belt penetrates through the guide fixer; the vibration of the belt during transmission is reduced, and the running stability of the supporting plate during rotation of the motor is improved.
The guide fixer comprises a block body, the middle part of the block body is provided with a through hole through which the belt can penetrate, and the block body is fixed on the supporting plate; the through holes guide the belt and limit vibration.
The guide fixer is welded on the supporting plate; the stability of connection is improved, accelerate the vibration transmission each other.
The guide fixer is made of plastics; the weight is reduced.
The moving piece can be a telescopic rod, and two ends of the telescopic rod are fixedly connected with the supporting plate and the touch plate; the moving part can be a hinge plate, and the end of the hinge plate is hinged with the supporting plate and the touch plate; so that the contact plate can be contacted with or separated from the supporting plate.
The sliding rail is matched with the sliding groove on the supporting plate in a T shape, and the sliding rail is hung and buckled by the sliding groove; the matching between the sliding rail and the sliding groove is improved, and the bearing capacity of the sliding rail is improved.
The belt is a V-belt; the rotating wheel A and the rotating wheel B are V grooved wheels.
The invention has the beneficial effects that: when the car door is opened, the circuit of the elevator lifting motion is completely cut off, and the elevator lifting motion stops running; the movable contact of the door lock switch A is closed and electrified, the motor controller enables the motor to rotate positively, the rotating wheel B rotates to drive the rotating wheel A to rotate through the belt, and the supporting plate is extended out;
when the contact plate is contacted with the inner wall of the well, the contact plate is pressed back to be contacted with the supporting plate, the normally closed contact of the contact plate switch is disconnected at the moment, the motor controller enables the motor to rotate forwards to cut off the power, the motor rotates forwards to stop, and the supporting plate stops being extended.
When the car door is closed, the movable contact of the door lock switch A is disconnected, the normally closed stationary contact of the door lock switch A is closed, the motor controller enables the motor to rotate reversely, the rotating wheel B rotates to drive the rotating wheel A to rotate through the belt, and the supporting plate is retracted;
after the supporting plate is retracted and pressed to the position limiting switch, the motor controller enables the motor reverse rotation conducting wire to be powered off, the motor reverse rotation is stopped, the movable contact of the door lock switch B is closed at the moment, the circuit of the elevator lifting motion is completely closed and connected, and the elevator lifting motion can run.
Therefore, the problem that passengers in the elevator can step off the car door blindly and self-rescue to fall into the well from the gap of 0.15m in the prior art is solved, the dangerous condition that passengers in the elevator blindly and self-rescue to take off the car door to fall into the well is avoided, and safety accidents are prevented.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic circuit connection diagram of the present invention.
In the figure: 1-a touch panel; 2-a supporting plate; 3-a slide rail; 4-a touch panel switch; 5-a belt; 7-door lock switch B; 8, a motor; 9-in-place limit switch; 10-a motor controller; 11-door lock switch A.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
See fig. 1-2.
The invention relates to a safety protection device for preventing falling of an elevator, which comprises a touch plate 1;
the supporting plate 2 is fixedly connected with the touch plate 1 through a plurality of moving parts, and the touch plate 1 can be contacted with or separated from the supporting plate 2 under the action of the moving parts;
the sliding rails 3 are arranged in sliding grooves corresponding to the sliding rails 3 on the supporting plate 2;
the touch panel switch 4 is fixedly arranged on the supporting plate 2, and a moving contact of the touch panel switch 4 is positioned in a gap between the touch panel 1 and the supporting plate 2; when the touch plate 1 is contacted with the supporting plate 2, the touch plate 1 can press the touch plate switch 4;
the rotating wheel A is fixedly arranged at the bottom of the supporting plate 2;
the belt 5, the motor 8 and the rotating wheel B, wherein the rotating wheel A is matched with the rotating wheel B fixed on the output shaft of the motor 8 through the belt 5;
the motor 8 is connected with a power supply through the motor controller 10, and the normally closed contact of the touch panel switch 4 is connected in series on a lead of the motor controller 10 which enables the motor 8 to rotate forwards;
a door lock switch A11, wherein a normally open moving contact of the door lock switch A11 is connected in series with a conductor of the motor controller 10 which enables the motor 8 to rotate forward, and a normally closed stationary contact of the door lock switch A is connected in series with a conductor of the motor controller 10 which enables the motor 8 to rotate reversely; the door lock switch A11 is arranged on the car door;
a door lock switch B7, a normally closed static contact of the door lock switch B7 is connected in series with the lifting circuit of the elevator, and a normally open movable contact of the door lock switch B7 is connected in series with a lead of a motor controller 10 which enables the motor 8 to rotate reversely
An in-place limit switch 9, wherein the in-place limit switch 9 is connected in series with a lead of a motor controller 10 which enables the motor 8 to rotate reversely; the door lock switch B7 and the in-place limit switch 9 are arranged at the rear end of the supporting plate 2.
When the elevator door is installed, the two sliding rails 3, the motor 8, the door lock switch B7, the in-place limit switch 9 and the motor controller 10 are installed on the outer side of the bottom of the elevator car door, and can be installed according to the distributed positions in the figure 1.
When the car door is opened, the circuit of the elevator lifting motion is completely cut off, and the elevator lifting motion stops running; the movable contact of the door lock switch A11 is closed and electrified, the motor controller 10 enables the motor 8 to rotate positively, the rotating wheel B rotates to drive the rotating wheel A11 to rotate through the belt 5, and the supporting plate 2 is extended out;
when the contact plate 1 is contacted with the inner wall of the well, the contact plate 1 is pressed back to be contacted with the supporting plate 2, the normally closed contact of the contact plate switch 4 is disconnected, the motor controller 10 enables the motor 8 to rotate forwards and cut off the power, the motor 8 rotates forwards and stops, and the supporting plate 2 stops being extended.
When the car door is closed, the movable contact of the door lock switch A11 is disconnected, the normally closed stationary contact of the door lock switch A11 is closed, the motor controller 10 enables the motor 8 to rotate reversely, the rotating wheel B rotates to drive the rotating wheel A to rotate through the belt 5, and the supporting plate 2 is retracted;
after the supporting plate 2 is retracted and pressed to the position limit switch 9, the motor controller 10 enables the reverse rotation conducting wire of the motor 8 to be powered off, the motor 8 stops reversing, the movable contact of the door lock switch B7 is closed at the moment, the circuit of the elevator lifting motion is completely closed and connected, and the elevator lifting motion can run.
Therefore, the problem that passengers in the elevator can step off the car door blindly and self-rescue to fall into the well from the gap of 0.15m in the prior art is solved, the dangerous condition that passengers in the elevator blindly and self-rescue to take off the car door to fall into the well is avoided, and safety accidents are prevented.
The supporting plate 2 is also fixedly provided with a guide fixer 6, and the belt 5 penetrates through the guide fixer 6; the vibration of the belt 5 during transmission is reduced, and the running stability of the supporting plate 2 during rotation of the motor 8 is improved.
The guide fixer 6 comprises a block body, the middle part of the block body is provided with a through hole through which the belt 5 can penetrate, and the block body is fixed on the supporting plate 2; the through holes guide the belt 5 and limit vibrations.
The guide fixer 6 is welded on the supporting plate 2; the stability of connection is improved, accelerate the vibration transmission each other.
The guide fixer 6 is made of plastic; the weight is reduced.
The moving piece can be a telescopic rod, and two ends of the telescopic rod are fixedly connected with the supporting plate 2 and the touch plate 1; the moving part can be a hinge plate, and the end of the hinge plate is hinged with the supporting plate 2 and the touch plate 1; so that the touch panel 1 can be brought into contact with or separated from the pallet 2.
The slide rail 3 is matched with the slide groove on the supporting plate 2 in a T shape, and the slide rail 3 is hung and buckled by the slide groove; the matching between the sliding rail 3 and the sliding groove is improved, and the bearing capacity of the sliding rail 3 is improved.
The belt 5 is a V-belt; the rotating wheel A and the rotating wheel B are V grooved wheels.
Claims (9)
1. A safety arrangement that elevator was prevented falling, its characterized in that includes: a touch plate (1);
the supporting plate (2) is fixedly connected with the touch plate (1) through a plurality of moving parts, and the touch plate (1) can be contacted with or separated from the supporting plate (2) under the action of the moving parts;
the sliding rails (3) are arranged in sliding grooves corresponding to the sliding rails (3) on the supporting plate (2);
the touch panel switch (4), the touch panel switch (4) is fixedly mounted on the supporting plate (2), the moving contact of the touch panel switch (4) is positioned in the gap between the touch panel (1) and the supporting plate (2);
the rotating wheel A is fixedly arranged at the bottom of the supporting plate (2);
the belt (5), the motor (8) and the rotating wheel B, wherein the rotating wheel A is matched with the rotating wheel B fixed on the output shaft of the motor (8) through the belt (5);
the motor controller (10), the motor (8) is connected with the power supply through the motor controller (10), and the normally closed contact of the touch panel switch (4) is connected in series on the lead of the motor controller (10) which enables the motor (8) to rotate forwards;
a normally open moving contact of the door lock switch A (11) is connected in series with a conductor of the motor controller (10) which enables the motor (8) to rotate forward, and a normally closed stationary contact of the door lock switch A (11) is connected in series with a conductor of the motor controller (10) which enables the motor (8) to rotate reversely;
the normally closed static contact of the door lock switch B (7) is connected with a lifting circuit of the elevator in series;
the in-place limit switch (9), the in-place limit switch (9) is connected in series on a lead of a motor controller (10) which enables the motor (8) to rotate reversely; a door lock switch B (7) and an in-place limit switch (9) are arranged at the rear end of the supporting plate (2).
2. The elevator fall prevention safety protection device of claim 1, characterized in that: the supporting plate (2) is further fixedly provided with a guide fixer (6), and the belt (5) penetrates through the guide fixer (6).
3. The elevator fall prevention safety protection device of claim 2, characterized in that: the guide fixer (6) comprises a block body, a through hole which can enable the belt (5) to run through is formed in the middle of the block body, and the block body is fixed on the supporting plate (2).
4. The elevator fall prevention safety protection device of claim 3, wherein: the guide fixer (6) is welded on the supporting plate (2).
5. An elevator fall protection safety device as defined in claim 2, 3 or 4, wherein: the guide fixer (6) is made of plastics.
6. The elevator fall prevention safety protection device of claim 1, characterized in that: the moving piece is a telescopic rod, and two ends of the telescopic rod are fixedly connected with the supporting plate (2) and the touch plate (1); the moving part or the moving part can be a hinge plate, and the end of the hinge plate is hinged with the supporting plate (2) and the touch plate (1); the moving member enables the touch plate (1) to contact with or separate from the pallet (2).
7. The elevator fall prevention safety protection device of claim 1, characterized in that: the sliding rail (3) is matched with the sliding groove on the supporting plate (2) in a T shape, and the sliding rail (3) is hung and buckled by the sliding groove.
8. The elevator fall prevention safety protection device of claim 1, characterized in that: the belt (5) is a V-shaped belt; the rotating wheel A and the rotating wheel B are V grooved wheels.
9. An elevator car, characterized in that: the elevator falling prevention safety protection device comprises the elevator falling prevention safety protection device of any one of claims 1-8, wherein the two sliding rails (3), the motor (8), the door lock switch B (7), the in-place limit switch (9) and the motor controller (10) are fixedly arranged on the outer side of the bottom surface of the elevator car door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911377347.7A CN110980486A (en) | 2019-12-27 | 2019-12-27 | Safety protection device for preventing elevator from falling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911377347.7A CN110980486A (en) | 2019-12-27 | 2019-12-27 | Safety protection device for preventing elevator from falling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110980486A true CN110980486A (en) | 2020-04-10 |
Family
ID=70077969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911377347.7A Pending CN110980486A (en) | 2019-12-27 | 2019-12-27 | Safety protection device for preventing elevator from falling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110980486A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0680363A (en) * | 1992-09-03 | 1994-03-22 | Hitachi Building Syst Eng & Service Co Ltd | Car door lock device of elevator |
| KR950024998U (en) * | 1994-02-21 | 1995-09-15 | 엘지산전 주식회사 | Elevator fall prevention device |
| CN202296762U (en) * | 2011-10-10 | 2012-07-04 | 日立电梯(上海)有限公司 | Covering device for gap between elevator car door and hoistway door |
| CN103231974A (en) * | 2013-05-17 | 2013-08-07 | 快意电梯股份有限公司 | Elevator car door lock device and working method thereof |
| CN104355210A (en) * | 2014-11-10 | 2015-02-18 | 日立电梯（成都）有限公司 | Telescopic car-door sill and flexing control method |
| CN105645240A (en) * | 2016-04-12 | 2016-06-08 | 西继迅达（许昌）电梯有限公司 | Lift cage door lock device |
| CN205634576U (en) * | 2016-05-09 | 2016-10-12 | 李昌 | Sky restraining device is prevented stepping on by elevator |
| CN208265584U (en) * | 2018-05-31 | 2018-12-21 | 浙江梅轮电梯股份有限公司 | A kind of elevator can stretch the toeguard of contraction automatically |
| CN109969900A (en) * | 2019-04-26 | 2019-07-05 | 湖南省特种设备检验检测研究院邵阳分院 | A kind of accidental movement of elevator cage protective device |
| CN209127848U (en) * | 2018-12-02 | 2019-07-19 | 重庆市佳燕电器有限公司 | Elevator doorway is stretched loss- proof plate |
| CN110482385A (en) * | 2019-08-06 | 2019-11-22 | 浙江梅轮电梯股份有限公司 | A kind of automatic telescopic zero clearance car door sill |
| CN110577135A (en) * | 2019-09-26 | 2019-12-17 | 山东富士制御电梯有限公司 | Platform type elevator car bottom edge protection device |
| CN211569829U (en) * | 2019-12-27 | 2020-09-25 | 贵州中航电梯有限责任公司 | Elevator falling prevention safety protection device and elevator car |
-
2019
- 2019-12-27 CN CN201911377347.7A patent/CN110980486A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0680363A (en) * | 1992-09-03 | 1994-03-22 | Hitachi Building Syst Eng & Service Co Ltd | Car door lock device of elevator |
| KR950024998U (en) * | 1994-02-21 | 1995-09-15 | 엘지산전 주식회사 | Elevator fall prevention device |
| CN202296762U (en) * | 2011-10-10 | 2012-07-04 | 日立电梯(上海)有限公司 | Covering device for gap between elevator car door and hoistway door |
| CN103231974A (en) * | 2013-05-17 | 2013-08-07 | 快意电梯股份有限公司 | Elevator car door lock device and working method thereof |
| CN104355210A (en) * | 2014-11-10 | 2015-02-18 | 日立电梯（成都）有限公司 | Telescopic car-door sill and flexing control method |
| CN105645240A (en) * | 2016-04-12 | 2016-06-08 | 西继迅达（许昌）电梯有限公司 | Lift cage door lock device |
| CN205634576U (en) * | 2016-05-09 | 2016-10-12 | 李昌 | Sky restraining device is prevented stepping on by elevator |
| CN208265584U (en) * | 2018-05-31 | 2018-12-21 | 浙江梅轮电梯股份有限公司 | A kind of elevator can stretch the toeguard of contraction automatically |
| CN209127848U (en) * | 2018-12-02 | 2019-07-19 | 重庆市佳燕电器有限公司 | Elevator doorway is stretched loss- proof plate |
| CN109969900A (en) * | 2019-04-26 | 2019-07-05 | 湖南省特种设备检验检测研究院邵阳分院 | A kind of accidental movement of elevator cage protective device |
| CN110482385A (en) * | 2019-08-06 | 2019-11-22 | 浙江梅轮电梯股份有限公司 | A kind of automatic telescopic zero clearance car door sill |
| CN110577135A (en) * | 2019-09-26 | 2019-12-17 | 山东富士制御电梯有限公司 | Platform type elevator car bottom edge protection device |
| CN211569829U (en) * | 2019-12-27 | 2020-09-25 | 贵州中航电梯有限责任公司 | Elevator falling prevention safety protection device and elevator car |
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