CN113291960A - Elevator door safety device and elevator - Google Patents
Elevator door safety device and elevator Download PDFInfo
- Publication number
- CN113291960A CN113291960A CN202110583561.9A CN202110583561A CN113291960A CN 113291960 A CN113291960 A CN 113291960A CN 202110583561 A CN202110583561 A CN 202110583561A CN 113291960 A CN113291960 A CN 113291960A
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- side plate
- movable plate
- plate
- elevator
- safety device
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- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- 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
- B66B13/245—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers mechanical
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- 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
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/143—Control systems or devices electrical
- B66B13/146—Control systems or devices electrical method or algorithm for controlling doors
-
- 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
-
- 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
- B66B13/30—Constructional features of doors or gates
- B66B13/306—Details of door jambs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
The invention discloses an elevator door safety device and an elevator, wherein the elevator comprises a door panel and a door frame upright post, the door frame upright post comprises a first side plate, a second side plate and a third side plate, the first side plate and the third side plate are respectively positioned at two sides of the second side plate, the first side plate is positioned between the second side plate and the door panel, the safety device comprises a movable plate, an elastic piece and a limit switch, the movable plate is positioned between the second side plate and the door panel, the elastic piece and the limit switch are positioned between the first side plate and the movable plate, the elastic piece is used for providing a trend that the movable plate moves away from the first side plate, and the limit switch is used for stopping the door panel from moving. The safety device is reasonable in structural design, and when a hand or an object touches the movable plate to move the movable plate, the limit switch is triggered to stop the door plate to act, so that the hand or other objects are prevented from being clamped; and the release of the elastic piece can reset the movable plate, thereby ensuring the elevator to continue to operate normally.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to an elevator door safety device and an elevator comprising the same.
Background
With the rapid development of social economy and the continuous improvement of living standard of common people, elevators become an indispensable part in daily life of people. At present, the elevator is widely used in places such as markets, office buildings, residential buildings and the like, and the use safety of the elevator is more and more emphasized. Generally, in order to ensure the normal operation of the elevator, a gap with a certain distance is allowed between a door plate of the elevator and a door frame upright post.
The passenger is taking the elevator or is waiting for the elevator in-process, leans on the elevator when passenger's health, may lead to hand or other article on one's body to contact the door plant to lead to the elevator to bring hand or foreign matter into the gap between door plant and the door frame stand when opening the door, if take place the tong incident then can lead to the fact the injury to passenger's health, perhaps cause the damage to the elevator after being drawn into the foreign matter, this all can influence the normal operating of elevator.
Disclosure of Invention
In view of the above, in order to overcome the defects of the prior art, the present invention provides a safety device for an elevator door, which stops the elevator operation by triggering a limit switch when a hand or an object of a passenger is brought into a gap between a door panel and an upright post of a door frame, thereby preventing accidents.
In order to achieve the purpose, the invention adopts the following technical scheme:
the elevator comprises a door plate and a door frame upright post, wherein the door frame upright post comprises a first side plate, a second side plate and a third side plate, the first side plate and the third side plate are parallel to each other and perpendicular to the door plate, the second side plate is parallel to the door plate, the first side plate and the third side plate are positioned at two end parts of the second side plate and are respectively positioned at two sides of the second side plate, the first side plate is positioned between the second side plate and the door plate, the safety device comprises a movable plate, an elastic piece and a limit switch, the movable plate is positioned between the second side plate and the door plate, the elastic piece and the limit switch are positioned between the first side plate and the movable plate, one end of the elastic piece is used for acting on the first side plate, the other end of the elastic piece is used for acting on the movable plate, and the elastic piece is used for providing a tendency that the movable plate moves in a direction away from the first side plate And the limit switch is used for stopping the door panel.
Through the arrangement of the movable plate, the elastic piece and the limit switch, when a body or an object is driven by the door plate to move, the movable plate can be touched, the elastic piece can be compressed when the movable plate is pushed, when the movable plate moves to be in contact with the limit switch, the elevator can stop acting, further accidents are prevented, and the clamping hands or other objects of the elevator can be effectively avoided; and when the external force withdraws from the movable plate, the compressed elastic piece is released to drive the movable plate to reset, so that the elevator continues to operate normally.
Preferably, the door frame pillar includes a fourth side plate parallel to the second side plate, the first side plate being connected between the second side plate and the fourth side plate, the movable plate being received between the second side plate and the fourth side plate; the fourth side plate is provided with a first through hole penetrating through the thickness direction of the fourth side plate, and the first through hole is formed in one side, far away from the first side plate, of the fourth side plate.
Preferably, the door frame pillar further includes a fifth side plate parallel to the first side plate, the fifth side plate is disposed between the second side plate and the fourth side plate, the first side plate and the fifth side plate are respectively located on two opposite sides of the movable plate, the fifth side plate is provided with a second through hole penetrating through the fifth side plate in the thickness direction, the second through hole is communicated with the first through hole, that is, the second through hole is formed in one side of the fifth side plate, which is far away from the second side plate. The fifth side plate is combined with the first side plate, and can limit the movable plate to move left and right, so that the movable plate cannot slide out of the door frame upright column; the second through opening is communicated with the first through opening, so that when a hand or other objects extend into a gap between the door plate and the upright post of the door frame, the movable plate is easily touched, and the movable plate is pushed to move so as to trigger the limit switch.
Further preferably, the length of the movable plate is greater than the lengths of the first and second ports, the width of the movable plate is less than the width of the first port, and the thickness of the movable plate is greater than or equal to the width of the second port. The length of the movable plate is greater than that of the first through opening and the second through opening, so that the movable plate can be effectively fixed between the second side plate and the fourth side plate and is prevented from falling off; the width of fly leaf is less than the width of first through opening for the fly leaf has the displacement interval of removal, can move in order to trigger limit switch along the elevator direction of opening the door when receiving external force.
Preferably, the length direction of the elastic member is perpendicular to the length direction of the movable plate, the length of the elastic member in a natural state is greater than the length of the limit switch, and the sum of the length of the elastic member in the natural state and the width of the movable plate is less than or equal to the distance between the first side plate and the fifth side plate. The length direction of the elastic member is perpendicular to the length direction of the movable plate, namely the elastic member extends and retracts along the moving direction of the movable plate. In some embodiments of the invention, the length of the elastic element in a natural state is greater than that of the limit switch, so that on one hand, when the movable plate is not subjected to external force or very small external force, the movable plate cannot generate displacement or the movable distance is very short and is not enough to trigger the limit switch, thereby avoiding mistakenly touching the limit switch and ensuring normal operation of the elevator; on the other hand, the movable plate is ensured to be compressed when the movable plate is triggered to the limit switch, and the elastic part is released to reset the movable plate when the external force withdraws; the sum of the length of the elastic piece in a natural state and the width of the movable plate is smaller than the distance between the first side plate and the fifth side plate, so that the elastic piece is not compressed when the elevator operates normally, an effective compression stroke is guaranteed when the movable plate is pushed to drive the elastic piece to compress, the movable plate can touch the limit switch, and the effective operation of the safety device is guaranteed.
More preferably, the door frame comprises a limiting device, the limiting device comprises a sliding rail and a pulley sliding along the sliding rail, the sliding rail is arranged on one of the door frame upright post and the movable plate, and the pulley is arranged on the remaining one of the door frame upright post and the movable plate. The pulley block is on the slide rail, and the two mutually support, make things convenient for the removal about the fly leaf, and restriction fly leaf upwards or move down, prevent that the fly leaf from dropping.
Further preferably, the upper end portion and the lower end portion of the second side plate are provided with the slide rails, the upper end portion and the lower end portion of the movable plate are provided with the pulleys, and the movable plate is slidably mounted on the slide rails. The arrangement of the sliding rails and the pulleys can increase the flexibility of the movable plate in moving, so that the sensitivity of the safety device is improved.
Further preferably, be provided with the lug on the fly leaf, the lug is located between fly leaf and the door plant and run through first opening, the size of lug is less than the size of fly leaf. The convex block is positioned between the movable plate and the door plate and penetrates through the first through opening, a gap is reserved between the convex block and the door plate, the movable plate can be touched after the hand or object of a passenger stretches into the gap between the door plate and the upright post of the door frame, and therefore the safety device is triggered to operate, and accidents are avoided.
Preferably, the number of the elastic pieces is at least two, and the elastic pieces are arranged between the movable plate and the first side plate at even intervals. In some embodiments of the invention, the two elastic pieces are symmetrically arranged about the limit switch, so that the elastic pieces are uniformly stressed, the movable plate can stably move, and the effective operation of the safety device is ensured. In other embodiments of the present invention, three or more elastic members may be disposed at regular intervals, and the elastic members are disposed at regular intervals, so that the elastic members are uniformly stressed.
The invention also provides an elevator comprising a safety device as described above. The safety devices are respectively arranged between the door plates on two sides of the elevator and the corresponding door frame upright posts.
Compared with the prior art, the invention has the advantages that: the elevator door safety device is reasonable in structural design and simple in structure, the elastic piece and the limit switch are arranged between the movable plate and the first side plate, the movable plate is positioned between the second side plate and the door plate, and when a hand or an object is squeezed between the door plate and the movable plate along the door opening direction, the movable plate can be driven to move along the door opening direction through friction force to trigger the limit switch, so that the door plate is stopped to act, and the hand or other objects are prevented from being clamped; the release of the elastic piece can also reset the movable plate, thereby ensuring the elevator to continue to operate normally.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of the structure of an elevator equipped with a safety device in an embodiment of the present invention;
fig. 2 is a cross-sectional view of an elevator equipped with a safety device in an embodiment of the present invention;
wherein: the door comprises a door plate 1, a door frame column 2, a first side plate 21, a second side plate 22, a third side plate 23, a fourth side plate 24, a first through opening 241, a fifth side plate 25, a movable plate 3, an elastic part 4, a limit switch 5, a sliding rail 6, a pulley 7 and a bump 8.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 2, the elevator of the present embodiment includes conventional components such as a door panel 1, a door frame pillar 2, and the like, and a safety device. The door frame pillar 2 is integrally formed by bending, and includes a first side plate 21, a second side plate 22, a third side plate 23, a fourth side plate parallel to the second side plate 22, and a fifth side plate 25 parallel to the first side plate 21. The first side plate 21 and the third side plate 23 are parallel to each other and perpendicular to the door panel 1, the first side plate 21 and the third side plate 23 are respectively located on two sides of the second side plate 22, the first side plate is connected between the second side plate 22 and the fourth side plate 24, the second side plate 22 is parallel to the door panel 1, the fifth side plate 25 is arranged between the second side plate 22 and the fourth side plate 24, and the first side plate 21 and the fifth side plate 25 are respectively located on two opposite sides of the movable plate 3. A first through opening 241 penetrating through the fourth side plate 24 in the thickness direction is formed on one side of the fourth side plate 24 away from the first side plate 21, and the width of the first through opening 241 is smaller than that of the fourth side plate 24; set up the second through opening that runs through its thickness direction on the fifth curb plate 25, the width of second through opening equals the width of fifth curb plate 25, and the second through opening link up with first through opening 241, and fourth curb plate 24 and fifth curb plate 25 are provided with the opening in the position that is close to the layer door promptly, can in time touch fly leaf 3 after passenger's hand or article mistake go into the space of being convenient for to trigger this safety device operation.
The elevator door safety device in this embodiment includes a movable plate 3, an elastic member 4, a limit switch 5, a limit device, and a protrusion 8 disposed on the movable plate 3, wherein the elastic member 4 is preferably a spring in this embodiment.
The movable plate 3 is accommodated in a space formed by the first side plate, the second side plate, the fourth side plate and the fifth side plate. In the present embodiment, the length of the movable plate 3 is greater than the lengths of the first through opening 241 and the second through opening, so that the movable plate 3 is effectively fixed between the second side plate 22 and the fourth side plate 24, and the movable plate 3 is prevented from falling off or falling off; the width of the movable plate 3 is smaller than that of the first through opening 241, so that the movable plate 3 can have a displacement interval along the door opening direction of the elevator when being subjected to an external force, and can trigger the limit switch 5 after moving for a certain distance; the thickness of the movable plate 3 is equal to the width of the second through opening. The movable plate 3 is further provided with a bump 8, the bump 8 is located between the movable plate 3 and the door panel 1 and penetrates through the first through opening 241, and a gap is reserved between the bump 8 and the door panel 1; the size of the bump 8 is smaller than that of the movable plate 3, specifically, the width of the bump 8 is equal to that of the movable plate 3, and the length of the bump 8 is equal to that of the first through opening 241. The lug 8 can further limit the movable plate 3, so as to limit the movable plate 3 to move upwards or downwards and prevent the movable plate 3 from falling; and the hands or objects of passengers can touch the movable plate 3 after entering the gap by mistake, so that the safety device is triggered to operate, and accidents are avoided.
In the present embodiment, the limit switch 5 and the two elastic members 4 symmetrically disposed about the limit switch are disposed between the first side plate 21 and the movable plate 3, wherein the limit switch 5 is used for stopping the door panel 1 from moving; the two elastic pieces 4 symmetrically arranged are beneficial to the uniform stress of the elastic pieces 4, one end of each elastic piece 4 is used for acting on the first side plate 21, and the other end of each elastic piece 4 is used for acting on the movable plate 3, so that the movable plate 3 has the trend of moving stably towards the direction away from the first side plate 21. The length direction of the elastic part 4 is perpendicular to the length direction of the movable plate 3, and the length of the elastic part 4 in a natural state is greater than that of the limit switch 5, so that when the elevator normally runs, the movable plate 3 cannot generate displacement or the moving distance is short enough to trigger the limit switch 5 when the movable plate 3 is not subjected to external force or small external force, the limit switch 5 can be prevented from being touched by mistake, and the normal running of the elevator is ensured; on the other hand, the movable plate 3 is compressed when the limit switch 5 is triggered, so that the elastic member 4 is released to reset the movable plate 3 when the external force is withdrawn; the sum of the length of the elastic piece 4 in a natural state and the width of the movable plate 3 is smaller than the distance between the first side plate 21 and the fifth side plate 25, so that the elastic piece 4 is not compressed when the elevator operates normally, the movable plate 3 is pushed, the elastic piece 4 can have an effective compression stroke when being compressed, the movable plate 3 can touch the limit switch 5, and the effective operation of the safety device is ensured.
The limiting device comprises slide rails 6 arranged at the upper end and the lower end of the second side plate 22, and pulleys 7 arranged at the upper end and the lower end of the movable plate 3, wherein the movable plate 3 is slidably mounted on the slide rails 6, so that the pulleys 7 slide along the slide rails 6. The limiting device can facilitate the movement of the movable plate, and limit the movable plate 3 to move upwards or downwards, so as to prevent the movable plate 3 from falling; and the arrangement of the sliding rail 6 and the pulley 7 can increase the flexibility of the movement of the movable plate 3, thereby improving the sensitivity of the safety device.
The working principle of the elevator door safety device of the invention is as follows: when a hand or an object of a passenger extends into a gap between the door panel 1 and the door frame upright 2 along the door opening direction, the hand or the object touches the movable plate 3, and the friction force between the hand or the object and the movable plate 3 can drive the movable plate 3 to move along the door opening direction and gradually approach the first side plate 21. In the process, the elastic element 4 is gradually compressed, when the movable plate 3 moves to be in contact with the limit switch 5, the movable plate 3 cannot move continuously, the door panel 1 stops moving at the moment, the hands or objects of passengers can be taken out of the gap, no external force is applied to the movable plate 3 at the moment, the elastic element 4 is released to drive the movable plate 3 to reset, and the elevator can continue to operate normally.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (10)
1. An elevator door safety device, the elevator comprising a door panel and a door frame pillar, wherein the door frame pillar comprises a first side plate, a second side plate and a third side plate, the first side plate and the third side plate are parallel to each other and perpendicular to the door panel, the second side plate is parallel to the door panel, the first side plate and the third side plate are respectively located on two sides of the second side plate, the first side plate is located between the second side plate and the door panel, the safety device comprises a movable plate, an elastic member and a limit switch, the movable plate is located between the second side plate and the door panel, the elastic member and the limit switch are located between the first side plate and the movable plate, one end of the elastic member is used for acting on the first side plate, the other end of the elastic member is used for acting on the movable plate, the elastic member is used for providing a tendency for the movable plate to move in a direction away from the first side plate, the limit switch is used for stopping the door panel.
2. The elevator door safety device of claim 1, wherein the door frame pillar includes a fourth side panel parallel to the second side panel, the first side panel being connected between the second and fourth side panels, the movable panel being received between the second and fourth side panels; the fourth side plate is provided with a first through hole penetrating through the thickness direction of the fourth side plate, and the first through hole is formed in one side, far away from the first side plate, of the fourth side plate.
3. The elevator door safety device of claim 2, wherein the door frame pillar further includes a fifth side plate parallel to the first side plate, the fifth side plate is disposed between the second side plate and the fourth side plate, the first side plate and the fifth side plate are respectively disposed at two opposite sides of the movable plate, the fifth side plate is formed with a second through opening extending in a thickness direction thereof, and the second through opening is communicated with the first through opening.
4. The elevator door safety device of claim 3, wherein the length of the movable plate is greater than the length of the first and second through openings, the width of the movable plate is less than the width of the first through opening, and the thickness of the movable plate is greater than or equal to the width of the second through opening.
5. The elevator door safety device of claim 4, wherein a length direction of the elastic member is perpendicular to a length direction of the movable plate, a length of the elastic member in a natural state is greater than a length of the limit switch, and a sum of the length of the elastic member in the natural state and a width of the movable plate is less than or equal to a distance between the first side plate and the fifth side plate.
6. The elevator door safety device of claim 2, comprising a stop device including a slide rail and a pulley sliding along the slide rail, one of the door frame upright and the movable plate being provided with the slide rail and the remaining one of the door frame upright and the movable plate being provided with the pulley.
7. The elevator door safety device of claim 6, wherein the sliding rails are provided at both upper and lower ends of the second side plate, and the pulleys are provided at both upper and lower ends of the movable plate, the movable plate being slidably mounted on the sliding rails.
8. The elevator door safety device of claim 2, wherein the movable plate has a projection disposed thereon, the projection being disposed between the movable plate and the door plate and extending through the first opening, the projection having a size smaller than a size of the movable plate.
9. The elevator door safety device of claim 3, wherein there are at least two of the springs, the springs being evenly spaced between the movable plate and the first side plate.
10. An elevator comprising the elevator door safety device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110583561.9A CN113291960B (en) | 2021-05-27 | 2021-05-27 | Elevator door safety device and elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110583561.9A CN113291960B (en) | 2021-05-27 | 2021-05-27 | Elevator door safety device and elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113291960A true CN113291960A (en) | 2021-08-24 |
| CN113291960B CN113291960B (en) | 2024-02-23 |
Family
ID=77325510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110583561.9A Active CN113291960B (en) | 2021-05-27 | 2021-05-27 | Elevator door safety device and elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113291960B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20240182270A1 (en) * | 2021-04-28 | 2024-06-06 | Inventio Ag | Shaft door with a door guard arrangement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08268672A (en) * | 1995-03-31 | 1996-10-15 | Toshiba Corp | Gate for elevator |
| JP2002020066A (en) * | 2000-07-03 | 2002-01-23 | Hitachi Building Systems Co Ltd | Safety device for elevator car door |
| CN1970423A (en) * | 2006-12-04 | 2007-05-30 | 杭州西子孚信科技有限公司 | Clamp-proof device |
| CN103538993A (en) * | 2013-10-26 | 2014-01-29 | 胡吉安 | Safety system for preventing hand nipping during elevator door opening |
| CN208378155U (en) * | 2018-04-27 | 2019-01-15 | 苏州江南嘉捷电梯有限公司 | A kind of anti-towing gear of elevator door |
| CN210944469U (en) * | 2019-09-25 | 2020-07-07 | 西继迅达电梯有限公司 | Prevent tong lift-cabin door system |
-
2021
- 2021-05-27 CN CN202110583561.9A patent/CN113291960B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08268672A (en) * | 1995-03-31 | 1996-10-15 | Toshiba Corp | Gate for elevator |
| JP2002020066A (en) * | 2000-07-03 | 2002-01-23 | Hitachi Building Systems Co Ltd | Safety device for elevator car door |
| CN1970423A (en) * | 2006-12-04 | 2007-05-30 | 杭州西子孚信科技有限公司 | Clamp-proof device |
| CN103538993A (en) * | 2013-10-26 | 2014-01-29 | 胡吉安 | Safety system for preventing hand nipping during elevator door opening |
| CN208378155U (en) * | 2018-04-27 | 2019-01-15 | 苏州江南嘉捷电梯有限公司 | A kind of anti-towing gear of elevator door |
| CN210944469U (en) * | 2019-09-25 | 2020-07-07 | 西继迅达电梯有限公司 | Prevent tong lift-cabin door system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20240182270A1 (en) * | 2021-04-28 | 2024-06-06 | Inventio Ag | Shaft door with a door guard arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113291960B (en) | 2024-02-23 |
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Denomination of invention: Elevator door safety device and elevator Granted publication date: 20240223 Pledgee: Bank of China Limited Suzhou Industrial Park Branch Pledgor: SJEC Corp. Registration number: Y2024980033917 |