CN112777463A - Elevator door automatic detection device for thin and soft objects to be clamped - Google Patents
Elevator door automatic detection device for thin and soft objects to be clamped Download PDFInfo
- Publication number
- CN112777463A CN112777463A CN202110215220.6A CN202110215220A CN112777463A CN 112777463 A CN112777463 A CN 112777463A CN 202110215220 A CN202110215220 A CN 202110215220A CN 112777463 A CN112777463 A CN 112777463A
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- elevator
- switch
- fixed shell
- elevator door
- thin
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- 238000001514 detection method Methods 0.000 title claims abstract description 37
- 239000004020 conductor Substances 0.000 claims description 20
- 238000007689 inspection Methods 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 8
- 208000027418 Wounds and injury Diseases 0.000 abstract description 6
- 208000014674 injury Diseases 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 210000004247 hand Anatomy 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
- 210000000707 wrist Anatomy 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
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- Elevator Door Apparatuses (AREA)
Abstract
The invention discloses an automatic detection device for a thin and soft clamped object of an elevator door, which comprises a fixed shell, a switch trigger component, a switch component and a signal generator, wherein the switch trigger component is arranged on the fixed shell; the switch trigger assembly and the switch assembly are fixed in the fixed shell; the signal generator is connected with the switch assembly and the elevator control system. The invention is fixed on the elevator car door, when the children traction rope, the tie, the dress, the lifting pocket and other soft objects are clamped on the elevator door, the elevator moves vertically, the invention can inform the clamped signal to the elevator control system, and the elevator control system controls the elevator to stop running, thereby avoiding the occurrence of injury.
Description
Technical Field
The invention relates to an anti-pinch device, in particular to an automatic detection device for a thin and soft clamped object of an elevator door.
Background
The number of high-rise buildings in modern cities is increasing, and elevators, which are the most common and convenient vertical lifting tools at present, are increasingly closely linked with the lives of citizens, and become indispensable traffic tools for the lives of the citizens. In 2019, the registration number of elevators reaches 709.75 thousands, more than 1 ten thousands of elevators are added in part of cities, and correspondingly, safety accidents related to the elevators rise year by year, wherein the accidents of dog ropes or child traction ropes are the most striking and alarming.
The elevator door safety protection device generally adopts a touch panel switch or an infrared light curtain protection device. The touch plate type switch has low sensitivity and slow response, and needs a certain contact force for triggering, so that the damage often occurs when the switch is triggered; although the infrared light curtain is sensitive, a large number of sensors are needed for supporting, the cost is high because the domestic common light beams from 24 to 194 are different, and the infrared light curtain has poor recognition on soft objects such as children's hauling ropes, ties, dress and skirts, lifting bags and the like.
As shown in fig. 1-2, when a pet is carried by a feeder to take an elevator, if the pet enters the elevator and the feeder does not enter the elevator, that is, the pet and the pull rope handle are respectively located inside and outside the elevator car, when the elevator car drives the pet to move, the pull rope handle can be clamped by the floor or the ceiling, so that the pull rope is pulled when the elevator car moves to a certain distance and the pet is injured. The situation of injury caused by the traction rope handle in the elevator car and the pet moving outside the elevator car is shown in fig. 3. When an adult carries a child to take the elevator, if the wrist of the child is tied with a traction rope, and the child and a handle of the traction rope are respectively positioned inside and outside the elevator car, similar situations can also occur. In conclusion, the elevator system urgently needs a certain device to detect the rope clamping condition in time and generate a signal to the control system, so that the motion of the elevator is suspended, and accidents are prevented.
Technical content
The purpose of the invention is as follows: the invention provides an elevator door automatic detection device capable of preventing rope-shaped and thin and soft objects from being clamped.
The technical scheme is as follows: the invention comprises a fixed shell, a switch trigger component, a switch component and a signal generator; a switch trigger assembly and a switch assembly are arranged in the fixed shell; the signal generator is connected with the switch assembly and the elevator system; the device is arranged on the elevator car door.
Preferably, the switch trigger assembly comprises a detection rod, a middle shaft and a reset elastic element; one side of the fixed shell is provided with a through hole, one side of the detection rod passes through the through hole and abuts against the inner side of the fixed shell, and the other side of the detection rod is positioned outside the fixed shell; the detection rod and the reset elastic element are arranged on the middle shaft and can rotate around the middle shaft.
Preferably, the return elastic element is a torsion spring.
Preferably, the switch assembly comprises a conductive material or a microswitch.
Preferably, the conductive material is in the shape of 'Contraband'; are respectively arranged at one side of the inner part of the fixed shell and one side of the detection rod; the tail part of the detection rod is provided with a first Contraband-shaped conductive material, and the fixed shell is internally provided with a second Contraband-shaped conductive material; the first Contraband shaped conductive material and the second Contraband shaped conductive material are connected to the signal generator by wires, respectively.
Preferably, the micro switch comprises a button, a COM contact and an NC contact; the button is arranged on the inner side of the fixed shell, the detection rod is abutted against the button, and the COM contact and the NC contact are connected with the signal generator through wires.
Preferably, the number of the devices is at least 2.
Preferably, the detection rod horizontally extends out of the elevator door by 3-8 mm. The gap between the left door and the right door of the elevator is exceeded, and the extension is not too long, so that the passing is not influenced, and the risk of damage to the probe rod is reduced.
Preferably, the device is respectively arranged at a position 5-7cm away from the bottom of the lift car, namely the position of the height of the vertical point of the traction rope, and 80-90cm away from the bottom of the lift car, namely the position slightly higher than the high median of the functions of the adult hands in China.
The working principle is as follows: the feeler lever one end that is located the fixed shell outside is drawn by thin soft foreign matter and then begins rotatoryly under the axis restriction, and the switch subassembly is triggered after the feeler lever rotation reaches the certain degree, and the switch sends the signal to the information generator, and then sends the signal to elevator control system, and elevator control system receives pause elevator car action and notifies the staff in order to prevent that elevator car from continuing to move and causing the injury after the signal, and the feeler lever returns the normal position under the torsional spring effect after the troubleshooting.
Has the advantages that: compared with the prior art, the invention has the following remarkable effects: the invention can detect the thin and soft objects which can not be detected by the existing human-clamping prevention system, such as thin rope-shaped objects, skirt pendulums, lifting pockets and the like for pulling children and pets, and can prevent accidents; in addition, the invention has good anti-pinch effect, low price and easy installation and replacement.
Drawings
FIG. 1 is a schematic model elevation (left) side view (right) of the rope pinching problem;
FIG. 2 is a schematic view of a pet inside a car-the elevator moving causing injury;
FIG. 3 is a schematic view of a pet outside the car-the elevator moving causing injury;
FIG. 4 is a front view cross section of the present invention;
FIG. 5 is a top view cross section of the present invention;
FIG. 6 is a front (left) side (right) view of the installation of the present invention;
fig. 7 is a static view of an elevator incorporating the present invention;
FIG. 8 is a schematic view of a pet inside the car-elevator movement triggers the present invention;
FIG. 9 is a schematic view of a pet outside the car-elevator movement triggers the present invention;
FIG. 10 is a front view cross section of the present invention with the switch assembly being a conductive material;
FIG. 11 is a top view cross section of the present invention with the switch element being a conductive material;
FIG. 12 is a cross-sectional view of an abnormal state of the present invention with the switch element being a conductive material;
FIG. 13 is a front view cross section of the present invention with the switch assembly being a micro switch;
fig. 14 is a cross-sectional view of an abnormal state of the present invention in which the switch assembly is a microswitch.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The present invention will be described in detail with reference to examples.
As shown in fig. 4-5, the present invention is fixed on the elevator car door by a fixing plate 17, and comprises a fixing housing 11, a switch triggering assembly 12, a switch assembly 13 and a signal generator 14; a switch trigger component 12 and a switch component 13 are arranged in the fixed shell 11; the switch triggering component 12 comprises a detection rod 121, a middle shaft 122 and a torsion spring 123; a through hole is formed in one side of the fixed shell 11, one side of the detection rod 121 penetrates through the through hole to abut against the inner side of the fixed shell 11, and the other side of the detection rod extends out of the fixed shell 11; the detecting rod 121 and the torsion spring 123 are arranged on the middle shaft 122 and can rotate around the middle shaft 122, specifically, the detecting rod 121 is provided with a detecting rod clamping groove 16, a fixed shell clamping groove 15 is arranged in the fixed shell 11, one end of the torsion spring 123 is fixed in the detecting rod clamping groove 16, and the other end of the torsion spring 123 is fixed in the fixed shell clamping groove 15; the switch assembly 13 comprises a conductive material or a microswitch; a signal generator 14 is connected to the switch assembly 13 and to the elevator system.
Specifically, as shown in fig. 6, 2 devices are required to be vertically placed on an elevator car door of the device 1, wherein one device is placed at a position 5cm away from the bottom of the car, namely the height of a vertical point of a traction rope, and the other device is placed at a position 80cm away from the bottom of the car, namely a position slightly higher than the high and medium functional digits of adult hands in China; the feeler lever 121 extends horizontally beyond the elevator car door by 3mm to 8mm, i.e. beyond the elevator car door gap. As shown in fig. 7-9, when a pet is inside and outside the elevator car and the car moves up and down respectively, a tiny rope-shaped foreign object is clamped between the elevator doors, the detecting rod 121 is pulled by the tiny rope-shaped foreign object by extending out of the elevator doors and then starts to rotate under the limitation of the center shaft 122, the detecting rod 121 triggers the switch component 13 after rotating to a specified degree, the switch component 13 sends a signal to the signal generator 14 and then sends the signal to the elevator control system, the elevator control system stops the elevator car after receiving the signal and informs a worker to prevent the elevator car from continuing to move and causing injury, and the detecting rod returns to the original position under the action of the torsion spring after the fault is eliminated.
The switch assembly 13 includes a conductive material or a micro switch.
Specifically, when the switch assembly 13 is made of a conductive material, as shown in fig. 10-12, the tail of the probe rod 121 is provided with a first "Contraband" shaped conductive material 131, and the inside of the fixed housing 11 is provided with a second "Contraband" shaped conductive material 132; the first Contraband-shaped conductive material 131 and the second Contraband-shaped conductive material 132 are respectively connected to the signal generator 14 through wires. When the elevator door is closed and tiny rope-shaped foreign matters are clamped between the elevator doors, the elevator car normally runs and generates vertical displacement, the left end of the detection rod 121 is pulled by the foreign matters to be stressed due to stretching out of the elevator door and generates rotation under the limiting action of the middle shaft 122, the first Contraband-shaped conductive material 131 at the tail part of the detection rod 121 is contacted with the second Contraband-shaped conductive material 132 inside the fixed shell 11, the circuit of the signal generator 14 is switched on and starts to generate signals, the elevator control system stops the elevator action and informs workers after receiving the signals, the detection rod 121 returns to the original position under the action of the torsion spring 123 after the fault is eliminated, and the circuit of the signal generator 14 is interrupted.
Specifically, when the switch assembly is a microswitch, as shown in fig. 13-14, the microswitch includes a button 133, a COM contact 134, and an NC contact 135; the COM contact 134 and the NC contact 135 are connected with the signal generator 14 through wires; the buttons 133 are symmetrically arranged 2 in the fixed shell, and the detection rod 121 abuts against the buttons 133. When the elevator door is closed and tiny rope-shaped foreign matters are clamped between the elevator doors, the elevator car normally operates and generates vertical displacement, the left end of the detection rod 121 extends out of the elevator door and is dragged by the foreign matters to be pressed and rotates under the limiting action of the middle shaft 122, the tail of the detection rod 121 presses the button 133, the COM contact 134 and the NC contact 135 are in circuit connection after the button 133 is displaced to a specified degree, the circuit connection of the signal generator 14 starts to generate signals, the elevator control system receives the signals to suspend the elevator action and inform workers, the detection rod 121 returns to the original position under the action of the torsion spring 123 after the faults are eliminated, the button 133 returns to the original position under the action of the internal spring, the COM contact 134 and the NC contact 135 are in circuit disconnection, and the circuit of the.
Claims (8)
1. The utility model provides an elevator door automated inspection thin and soft quilt thing device which characterized in that: comprises a fixed shell (11), a switch trigger component (12), a switch component (13) and a signal generator (14); a switch trigger component (12) and a switch component (13) are arranged in the fixed shell (11); the signal generator (14) is connected with the switch assembly (13) and the elevator system; the device is arranged on the elevator car door.
2. The elevator door automatic detection thin and soft object clamping device according to claim 1, characterized in that: the switch trigger assembly (12) comprises a detection rod (121), a middle shaft (122) and a reset elastic element; a through hole is formed in one side of the fixed shell (11), one side of the detection rod (121) penetrates through the through hole and abuts against the inner side of the fixed shell (11), and the other side of the detection rod is located outside the fixed shell (11); the detection rod (121) and the reset elastic element are arranged on the middle shaft (122) and can rotate around the middle shaft (122).
3. The elevator door automatic detection thin and soft object clamping device according to claim 1, characterized in that: the switch assembly (13) comprises a conductive material or a microswitch.
4. The elevator door automatic detection thin and soft object clamping device according to claim 1, characterized in that: the number of the devices is at least 2.
5. The elevator door automatic detection thin and soft object clamping device according to claim 2, characterized in that: the detection rod (121) extends out of the elevator door by 3-8 mm.
6. The elevator door automatic detection thin and soft object clamping device according to claim 3, characterized in that: the conductive material is in a shape of 'Contraband'; are respectively arranged at one side inside the fixed shell and one side of the detection rod.
7. The elevator door automatic detection thin and soft object clamping device according to claim 3, characterized in that: the micro switch comprises a button (133), a COM contact (134) and an NC contact (135); the button (133) is arranged on the inner side of the fixed shell (11), the detection rod (121) is abutted against the button (133), and the COM contact (134) and the NC contact (135) are connected with the signal generator (14).
8. The elevator door automatic detection thin and soft object clamping device according to claim 4, characterized in that: the device is respectively arranged at the position 5-7cm away from the bottom of the car and at the position 80-90cm away from the bottom of the car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110215220.6A CN112777463A (en) | 2021-02-25 | 2021-02-25 | Elevator door automatic detection device for thin and soft objects to be clamped |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110215220.6A CN112777463A (en) | 2021-02-25 | 2021-02-25 | Elevator door automatic detection device for thin and soft objects to be clamped |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112777463A true CN112777463A (en) | 2021-05-11 |
Family
ID=75761936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110215220.6A Pending CN112777463A (en) | 2021-02-25 | 2021-02-25 | Elevator door automatic detection device for thin and soft objects to be clamped |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112777463A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213318A (en) * | 2021-06-10 | 2021-08-06 | 山东埃森电梯有限公司 | Anti-shearing protection device for longitudinal double-mode elevator door |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08192976A (en) * | 1995-01-18 | 1996-07-30 | Mitsubishi Denki Bill Techno Service Kk | Elevator door |
| JP2007076855A (en) * | 2005-09-15 | 2007-03-29 | Mitsubishi Electric Corp | Door closing safety device for elevator |
| CN203612784U (en) * | 2013-12-20 | 2014-05-28 | 展鹏科技股份有限公司 | Protecting system for safety touch panel door of elevator car door |
| CN205772708U (en) * | 2016-05-25 | 2016-12-07 | 江西省安达电梯有限公司 | A kind of elevator door anti-pinch device |
-
2021
- 2021-02-25 CN CN202110215220.6A patent/CN112777463A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08192976A (en) * | 1995-01-18 | 1996-07-30 | Mitsubishi Denki Bill Techno Service Kk | Elevator door |
| JP2007076855A (en) * | 2005-09-15 | 2007-03-29 | Mitsubishi Electric Corp | Door closing safety device for elevator |
| CN203612784U (en) * | 2013-12-20 | 2014-05-28 | 展鹏科技股份有限公司 | Protecting system for safety touch panel door of elevator car door |
| CN205772708U (en) * | 2016-05-25 | 2016-12-07 | 江西省安达电梯有限公司 | A kind of elevator door anti-pinch device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213318A (en) * | 2021-06-10 | 2021-08-06 | 山东埃森电梯有限公司 | Anti-shearing protection device for longitudinal double-mode elevator door |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210511 |
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| RJ01 | Rejection of invention patent application after publication |