CN113213318B - Anti-shearing protection device for longitudinal double-mode elevator door - Google Patents
Anti-shearing protection device for longitudinal double-mode elevator door Download PDFInfo
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- CN113213318B CN113213318B CN202110648601.3A CN202110648601A CN113213318B CN 113213318 B CN113213318 B CN 113213318B CN 202110648601 A CN202110648601 A CN 202110648601A CN 113213318 B CN113213318 B CN 113213318B
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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
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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
- B66B13/06—Door or gate operation of sliding doors
- B66B13/08—Door or gate operation of sliding doors guided for horizontal movement
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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
- B66B13/12—Arrangements for effecting simultaneous opening or closing of cage and landing doors
- B66B13/125—Arrangements for effecting simultaneous opening or closing of cage and landing doors electrical
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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
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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
- B66B13/30—Constructional features of doors or gates
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
The application provides a vertical double mode lift-cabin door prevents shearing protection device includes: the base column and the pin column are respectively arranged on the two car doors and are opposite, one side of the base column, which is far away from the pin column, is provided with a connecting seat, two ends of the base column are transversely provided with ejector rods, the middle part of the base column is provided with a plurality of displacement rods, the ejector rods and the displacement rods penetrate through the base column in a sliding manner, one end of each ejector rod is movably connected with the pin column, and the other end of each ejector rod is fixedly connected with the connecting seat; the device comprises a base column, two ejector rods and a connecting seat, wherein the two ejector rods are arranged on the base column, the two ejector rods are arranged on the connecting seat, the two ejector rods are arranged on the two opposite sides of the base column, the displacement slide blocks of the two ejector rods are respectively provided with an infrared transmitter and an infrared receiver which are matched with each other, one side of the base column, which is far away from the pin column, is provided with a telescopic mechanism, the output part of the telescopic mechanism is connected to the connecting seat, and the displacement rod is provided with a pressure-sensitive sensor. The detection intensity of the door motor protection device is improved in the vertical direction of the elevator door through the two modes of physical contact and optical non-contact, so that a vertical detection blind area is eliminated conveniently, and the detection sensitivity is further improved.
Description
Technical Field
The application relates to the technical field of elevator control, in particular to a longitudinal double-mode elevator door anti-shearing protection device.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
With the development of science and technology, elevator control technology and door machine protection equipment are continuously updated. Most manufacturers change the original door machine protection equipment from a safety touch panel into more sensitive and flexible light curtain equipment, but due to the contradiction between sensitivity and cost and the inherent defects of optical detection, the light curtain always has a certain blind area, and for a slender target object such as a dog walking rope or a light and thin transparent object, the risk of incapability of identifying exists, once the target object cannot be identified, the target object is bound to be sheared and damaged, meanwhile, the elevator is also damaged, and most of the existing light curtain equipment is arranged on the two transverse sides of an elevator door, so that the probability of missed detection of the light and thin object is increased.
Disclosure of Invention
In order to solve the problems, the application provides a longitudinal double-mode elevator door anti-shearing protection device.
The application provides a vertical double mode lift-cabin door prevents shearing protection device includes: the base column and the pin column are respectively arranged on the two car doors and are opposite, one side of the base column, which is far away from the pin column, is provided with a connecting seat, two ends of the base column are transversely provided with ejector rods, the middle part of the base column is provided with a plurality of displacement rods, the ejector rods and the displacement rods penetrate through the base column in a sliding manner, one end of each ejector rod is movably connected with the pin column, and the other end of each ejector rod is fixedly connected with the connecting seat; the device comprises a base column, two ejector rods and a connecting seat, wherein the two ejector rods are arranged on the base column, the two ejector rods are arranged on the connecting seat, the two ejector rods are arranged on the two opposite sides of the base column, the displacement slide blocks of the two ejector rods are respectively provided with an infrared transmitter and an infrared receiver which are matched with each other, one side of the base column, which is far away from the pin column, is provided with a telescopic mechanism, the output part of the telescopic mechanism is connected to the connecting seat, and the displacement rod is provided with a pressure-sensitive sensor.
Preferably, the base pillar and the pin post are axially provided with a plurality of groups of vibration through grooves and vibration pin grooves which are opposite to each other in pairs respectively, the connecting seat is axially provided with a limit sliding groove, the vibration through grooves are internally provided with base position sliding blocks in a sliding manner, the vibration pin grooves are internally provided with pin position sliding blocks in a sliding manner, the displacement rod penetrates through the base position sliding blocks in a sliding manner, one end of the displacement rod is movably connected to the pin position sliding blocks, and the other end of the displacement rod is slidably embedded in the limit sliding groove.
Preferably, the side wall of the base slide block is provided with a slide block through groove, one side of the pin slide block close to the base column is provided with a slide block pin groove, and the displacement rod is inserted in the slide block through groove in a sliding manner and movably inserted in the slide block pin groove.
Preferably, the upper and lower side walls of the vibration through groove are provided with base position guide grooves, the top and the bottom of the base position sliding block are provided with base position guide posts, the base position guide posts are slidably inserted into the base position guide grooves, the tail ends of the base position guide posts are provided with base position springs, and the tail ends of the base position springs are connected to the tail ends of the base position guide grooves; the vibrating pin slot is characterized in that pin position guide slots are formed in the upper side wall and the lower side wall of the vibrating pin slot, pin position guide columns are arranged at the top and the bottom of the pin position sliding block and are slidably inserted into the pin position guide slots, pin position springs are arranged at the tail ends of the pin position guide columns, and the tail ends of the pin position springs are connected to the tail ends of the pin position guide slots.
Preferably, the opposite sides of the two ejector rods are provided with mounting grooves, and the displacement guide rails are arranged in the mounting grooves.
Preferably, the two ends of the base pillar are respectively provided with a sliding through groove, one side of the two ends of the pin pillar, which is close to the base pillar, is respectively provided with a sliding pin groove, and the ejector rod is slidably inserted into the sliding through groove and movably inserted into the sliding pin groove.
Preferably, the lower lift pins are located below the car bottom, and the lowermost displacement rod is flush with the car bottom wall.
Preferably, the number of the telescopic mechanisms is two, and the telescopic mechanisms are symmetrically arranged on one side, away from the pin, of the base column.
Preferably, the top of one end of the displacement rod close to the pin is arc-shaped.
Preferably, the pressure-sensitive sensor comprises a microswitch arranged at the top of the displacement rod and a safety contact edge axially wrapped at the top and the bottom of the displacement rod.
Compared with the prior art, the beneficial effect of this application is:
this application detects the shelter through infrared transmitter and infrared receiver who locates on the ejector pin to and detect the shelter through the pressure sensor on the displacement pole, vertically through two kinds of modes of physical contact and optics non-contact at the lift-cabin door, improved a quick-witted protection device's of detection intensity and be convenient for eliminate vertical detection blind area, further improve detectivity.
The infrared transmitter and the infrared receiver are arranged on the displacement guide rail to move synchronously, so that longitudinal detection blind areas are eliminated conveniently, and the detection sensitivity is further improved.
After original light curtain and the infrared transmitter and the infrared receiver of this application detected the completion, sedan-chair door and room door were closed, and the displacement pole removed towards the round pin post, if the micro-gap switch at displacement pole top contacted the shelter from the thing, to elevator control system transmission brake signal, elevator emergency braking prevented earlier that the injury from taking place.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Figure 1 is a left side view of one embodiment of the present application,
figure 2 is a right side view of one embodiment of the present application,
figure 3 is an enlarged view of a portion of one embodiment of the present application,
FIG. 4 is a partial cross-sectional view of one embodiment of the present application.
In the figure:
1. base post, 2, the round pin post, 3, the connecting seat, 4, the ejector pin, 5, the displacement pole, 6, the displacement guide rail, 7, the displacement slider, 8, infrared emitter, 9, telescopic machanism, 10, the base slider, 11, the base guide post, 12, the base spring, 13, the round pin position slider, 14, the round pin position guide post, 15, the round pin position spring, 51, displacement sensor, 101, the logical groove of sliding, 102, the vibration logical groove, 103, the base guide way, 111, the logical groove of slider, 131, the slider cotter way, 201, the slip cotter way, 202, the vibration cotter way, 203, the cotter guide way, 301, spacing spout, 401, the mounting groove.
The specific implementation mode is as follows:
the present application will be further described with reference to the following drawings and examples.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the parts or elements of the present disclosure, and do not refer to any parts or elements of the present disclosure, and are not to be construed as limiting the present disclosure.
As shown in fig. 1 to 4, the present application provides a longitudinal dual-mode elevator door anti-shear protection device, including: locate two sedan-chair doors 100 respectively on and relative base pillar 1 and round pin post 2, one side that round pin post 2 was kept away from to base pillar 1 is equipped with connecting seat 3, 1 both ends of base pillar transversely are equipped with ejector pin 4, ejector pin 4 slides and runs through base pillar 1 and one end and round pin post 2 loose joint, and the other end rigid coupling is in connecting seat 3.
Two liang of relative vibration of a plurality of groups lead to groove 102 and vibration cotter way 202 have been seted up respectively to base column 1 and round pin post 2 axial, spacing spout 301 has been seted up to connecting seat 3 axial, the inslot that leads to of vibration groove 102 cunning is equipped with basic position slider 10, the inslot that vibrates cotter way 202 cunning is equipped with round pin position slider 13, it runs through and is equipped with displacement pole 5 to slide on the basic position slider 10, 5 one end loose joints of displacement pole are in round pin position slider 13, and spacing spout 301 is located to other end slip inlays.
The two ejector rods 4 are arranged on the opposite sides of the two ejector rails, a displacement guide rail 6 is arranged on a displacement slide block 7 of the displacement guide rail 6, an infrared transmitter 8 and an infrared receiver 16 which are mutually matched are arranged on the displacement slide block 7 respectively, a telescopic mechanism 9 is arranged on one side, away from the pin column 2, of the base column 1, the output portion of the telescopic mechanism 9 is connected to the connecting seat 3, and a pressure-sensitive sensor 51 is arranged on the displacement rod 5. The displacement guide rail 6, the infrared emitter 8, the infrared receiver 16, the telescopic mechanism 9, the pressure-sensitive sensor 51 and the elevator control system are connected. Under the condition that no shielding object is found after the original light curtain detection is finished, the car door 100 and the hall door are synchronously closed, the output shaft of the telescopic mechanism 9 moves to drive the connecting seat 3 to move towards the direction of the pin post 2, further drive the ejector rod 4 and the displacement rod 5 to move towards the pin post until the ejector rod 4 and the displacement rod 5 are connected with the pin post, the elevator control system controls the infrared transmitters 8 and the infrared receivers 16 on the two displacement guide rails 6 to synchronously move and carry out correlation detection, and if the shielding object is detected to shield the infrared light, the infrared receivers 16 inform the elevator control system to open the car door 100 and the hall door until the shielding object is removed; if the shielding object is not detected, the elevator control system controls the elevator car to move, if a tiny or transparent shielding object is clamped by the hall door and the car door 100 at the moment, the shielding object contacts the displacement rod 5 due to the relative motion of the hall door and the car door 100, the pressure-sensitive sensor on the displacement rod 5 transmits a braking signal to the elevator control system, the elevator performs emergency braking until the shielding object is removed, and the elevator returns to normal motion according to the original flow; if the pressure-sensitive sensor on the displacement rod 5 does not detect the blocking object, the car moves to a target floor, the elevator control system firstly controls the output shaft of the telescopic mechanism 9 to move to a preset position away from the pin 2 so as not to influence the car door opening, and then the door opening process is controlled.
The side wall of the base slide block 10 is provided with a slide block through groove 111, one side of the pin position slide block 13 close to the base column 1 is provided with a slide block pin groove 131, and the displacement rod 5 is slidably inserted into the slide block through groove 111 and movably inserted into the slide block pin groove 131.
The upper side wall and the lower side wall of the vibration through groove 102 are provided with base position guide grooves 103, the top and the bottom of the base position sliding block 10 are provided with base position guide posts 11, the base position guide posts 11 are slidably inserted into the base position guide grooves 103, the tail ends of the base position guide posts 11 are provided with base position springs 12, and the tail ends of the base position springs 12 are connected to the inner walls of the base position guide grooves 103.
The upper side wall and the lower side wall of the vibration pin groove 202 are provided with pin position guide grooves 203, the top and the bottom of the pin position sliding block 13 are provided with pin position guide columns 14, the pin position guide columns 14 are slidably inserted into the pin position guide grooves 203, the tail ends of the pin position guide columns 14 are provided with pin position springs 15, and the tail ends of the pin position springs 15 are connected to the inner walls of the pin position guide grooves 203.
The displacement rod 5 is triggered by the shielding object to move up and down, the front part of the displacement rod 5 drives the pin position sliding block 13 to move up and down along the vibration pin groove 202, the middle part of the displacement rod 5 drives the base position sliding block 10 to move up and down along the vibration through groove 102, the rear part of the displacement rod 5 moves up and down along the limiting sliding groove 301, the displacement rod 5 integrally moves up and down to buffer the shearing pressure of the shielding object, and the pin position guide column 14, the pin position spring 15, the base position guide column 11 and the base position spring 12 are used for further buffering the shearing pressure of the shielding object and the self-resetting of the displacement rod 5.
The two ends of the base column 1 are respectively provided with a sliding through groove 101, one side of the two ends of the pin column 2, which is close to the base column 1, is respectively provided with a sliding pin groove 201, and the ejector rod 4 is slidably inserted in the sliding through groove 101 and movably inserted in the sliding pin groove 201.
Lower part ejector pin 4 is located car bottom below, and displacement pole 5 and the parallel and level of car diapire of below, tiny shelter from the thing most likely and be located the car diapire, and displacement pole 5 and the parallel and level of car diapire of below reduce as early as possible and shelter from the thing and trigger the time of displacement pole 5, and furthest alleviates the loss.
The quantity of telescopic machanism 9 is two and the symmetry is located base column 1 and is kept away from one side of round pin post 2 to it is more stable to be used for the motion of connecting seat 3.
The top of one end of the displacement rod 5, which is close to the pin 2, is arc-shaped, so that a soft shelter is prevented from being pressed into the pin 2, and the shelter cannot be detected by the displacement rod 5.
The pressure-sensitive sensor 51 comprises a microswitch arranged at the top of the displacement rod 5 and a safety contact edge axially wrapped at the top and the bottom of the displacement rod 5. The micro-gap switch is pressure sensitive micro-gap switch, detects the completion back at original light curtain and the infrared transmitter 8 and the infrared receiver 16 of this application, and sedan-chair door 100 and room door are closed, and displacement pole 5 removes towards round pin post 2, if the micro-gap switch at displacement pole 5 top contacts the shelter, to elevator control system transmission brake signal, elevator emergency braking, prevents earlier that the injury from taking place.
The safety contact edge is a rubber belt-shaped pressure-sensitive switch. The safety edge and the safety buffer are flexible and bendable strip-shaped objects which can be fixed on the edge of a moving part such as a machine tool workbench, an electric door and the like with extrusion and shearing dangers, and the sheltering object is prevented from being incapable of contacting the pressure-sensitive sensor 51 through the safety contact edge, so that the detection of the displacement rod 5 is more stable and sensitive.
Based on the device structure, the application also provides a longitudinal double-mode elevator door anti-shearing protection method, which comprises the following specific steps:
s1: after the car door 100 and the hall door are closed, the telescopic mechanism 9 drives the connecting seat 3 to move towards the pin column 2, and further drives the ejector rod 4 and the displacement rod 5 to move towards the pin column until the ejector rod 4 and the displacement rod 5 are connected with the pin column;
s2: the infrared emitters 8 and the infrared receivers 16 on the two displacement guide rails 6 synchronously move and detect whether a shelter exists in a correlation mode;
s201: if so, the infrared receiver 16 informs the elevator control system to stop the movement of the car and open the car door 100 and the hall door;
s202: if not, jumping to step S3;
s3: the elevator control system controls the car to move, and a pressure-sensitive sensor on the displacement rod 5 detects whether a shelter triggers the displacement rod in real time within preset time or preset car travel;
s301: if so, the displacement sensor transmits a braking signal to the elevator control system, and the elevator is emergently braked;
s302: if not, jumping to step S4;
s4: the elevator returns to normal motion according to the original flow, the car moves to a target floor, the elevator control system firstly controls the output shaft of the telescopic mechanism 9 to move to a preset position far away from the pin 2 so as not to influence the opening of the car, and then the opening flow is controlled.
In the steps S201 and S301, the elevator control system notifies passengers and elevator operation and maintenance personnel through the original audio and video playing device and communication device to remove the obstruction and recover the normal operation of the elevator.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Although the embodiments of the present application have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present application, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive effort by those skilled in the art.
Claims (10)
1. Vertical double mode lift-cabin door anti-shear protection device characterized in that includes: the car door structure comprises a base column (1) and a pin column (2) which are arranged on two car doors (100) and are opposite to each other, wherein a connecting seat (3) is arranged on one side, away from the pin column (2), of the base column (1), ejector rods (4) are transversely arranged at two ends of the base column (1), a plurality of displacement rods (5) are arranged in the middle of the base column (1), the ejector rods (4) and the displacement rods (5) penetrate through the base column (1) in a sliding mode, one end of each ejector rod is movably connected with the pin column (2), and the other end of each ejector rod is fixedly connected to the connecting seat (3);
a displacement guide rail (6) is arranged on one side, opposite to the two ejector rods (4), of the displacement slide block (7) of the displacement guide rail (6), an infrared transmitter (8) and an infrared receiver (16) which are mutually matched are respectively arranged on the displacement slide block, a telescopic mechanism (9) is arranged on one side, far away from the pin column (2), of the base column (1), the output part of the telescopic mechanism (9) is connected to the connecting seat (3), and a pressure-sensitive sensor (51) is arranged on the displacement rod (5);
the elevator control system controls the infrared transmitters (8) and the infrared receivers (16) on the two displacement guide rails (6) to synchronously move and carry out correlation detection, and if a shelter is detected to shield infrared light, the infrared receivers (16) inform the elevator control system to open the car door (100) and the hall door.
2. The longitudinal dual-mode elevator door anti-shear protection device of claim 1, wherein:
two liang of relative vibration of a plurality of groups lead to groove (102) and vibration cotter way (202) have been seted up respectively to base pillar (1) and round pin post (2) axial, spacing spout (301) have been seted up to connecting seat (3) axial, the vibration leads to groove (102) internal slip and is equipped with basic position slider (10), vibration cotter way (202) internal slip is equipped with round pin position slider (13), displacement pole (5) slide and run through basic position slider (10), displacement pole (5) one end swing joint is in round pin position slider (13), and other end slip inlays locates spacing spout (301).
3. The longitudinal dual mode elevator door anti-shear protection device of claim 2, wherein:
the side wall of the base position sliding block (10) is provided with a sliding block through groove (111), one side of the pin position sliding block (13) close to the base column (1) is provided with a sliding block pin groove (131), and the displacement rod (5) is slidably inserted into the sliding block through groove (111) and movably inserted into the sliding block pin groove (131).
4. The longitudinal dual mode elevator door anti-shear protection device of claim 3, wherein:
base position guide grooves (103) are formed in the upper side wall and the lower side wall of the vibration through groove (102), base position guide columns (11) are arranged at the top and the bottom of the base position sliding block (10), the base position guide columns (11) are slidably inserted into the base position guide grooves (103), base position springs (12) are arranged at the tail ends of the base position guide columns (11), and the tail ends of the base position springs (12) are connected to the tail ends of the base position guide grooves (103);
the vibration pin slot device is characterized in that pin position guide slots (203) are formed in the upper side wall and the lower side wall of the vibration pin slot (202), pin position guide columns (14) are arranged at the top and the bottom of the pin position sliding block (13), the pin position guide columns (14) are slidably inserted into the pin position guide slots (203), pin position springs (15) are arranged at the tail ends of the pin position guide columns (14), and the tail ends of the pin position springs (15) are connected to the tail ends of the pin position guide slots (203).
5. The longitudinal dual-mode elevator door anti-shear protection device of claim 1, wherein:
mounting grooves (401) are formed in the opposite sides of the two ejector rods (4), and the displacement guide rails (6) are arranged in the mounting grooves (401).
6. The longitudinal dual-mode elevator door anti-shear protection device of claim 1, wherein:
the two ends of the base column (1) are respectively provided with a sliding through groove (101), one side of the two ends of the pin column (2) close to the base column (1) is respectively provided with a sliding pin groove (201), and the ejector rod (4) is slidably inserted into the sliding through groove (101) and movably inserted into the sliding pin groove (201).
7. The longitudinal dual-mode elevator door anti-shear protection device of claim 1, wherein:
the lower ejector rod (4) is positioned below the bottom of the car, and the displacement rod (5) at the lowest part is flush with the bottom wall of the car.
8. The longitudinal dual-mode elevator door anti-shear protection device of claim 1, wherein:
the number of the telescopic mechanisms (9) is two, and the telescopic mechanisms are symmetrically arranged on one side, away from the pin column (2), of the base column (1).
9. The longitudinal dual-mode elevator door anti-shear protection device of claim 1, wherein:
the top of one end of the displacement rod (5) close to the pin column (2) is arc-shaped.
10. The longitudinal dual-mode elevator door anti-shear protection device of claim 1, wherein:
the pressure-sensitive sensor (51) comprises a microswitch arranged at the top of the displacement rod (5) and a safety contact edge axially wrapped at the top and the bottom of the displacement rod (5).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210215905.5A CN114572798B (en) | 2021-06-10 | 2021-06-10 | Longitudinal multi-redundancy anti-shearing protection method for elevator car door |
| CN202110648601.3A CN113213318B (en) | 2021-06-10 | 2021-06-10 | Anti-shearing protection device for longitudinal double-mode elevator door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110648601.3A CN113213318B (en) | 2021-06-10 | 2021-06-10 | Anti-shearing protection device for longitudinal double-mode elevator door |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210215905.5A Division CN114572798B (en) | 2021-06-10 | 2021-06-10 | Longitudinal multi-redundancy anti-shearing protection method for elevator car door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113213318A CN113213318A (en) | 2021-08-06 |
| CN113213318B true CN113213318B (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210215905.5A Active CN114572798B (en) | 2021-06-10 | 2021-06-10 | Longitudinal multi-redundancy anti-shearing protection method for elevator car door |
| CN202110648601.3A Active CN113213318B (en) | 2021-06-10 | 2021-06-10 | Anti-shearing protection device for longitudinal double-mode elevator door |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210215905.5A Active CN114572798B (en) | 2021-06-10 | 2021-06-10 | Longitudinal multi-redundancy anti-shearing protection method for elevator car door |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113213318A (en) | 2021-08-06 |
| CN114572798A (en) | 2022-06-03 |
| CN114572798B (en) | 2023-10-13 |
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