CN114368665A - Elevator, elevator auxiliary door opening device and method - Google Patents
Elevator, elevator auxiliary door opening device and method Download PDFInfo
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- CN114368665A CN114368665A CN202111591400.0A CN202111591400A CN114368665A CN 114368665 A CN114368665 A CN 114368665A CN 202111591400 A CN202111591400 A CN 202111591400A CN 114368665 A CN114368665 A CN 114368665A
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- 238000010586 diagram Methods 0.000 description 2
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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
- B66B13/14—Control systems or devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
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- Automation & Control Theory (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
The invention relates to an elevator, an elevator auxiliary door opening device and an elevator auxiliary door opening method. The elevator auxiliary door opener comprises a stop component and a stop matching part. The stop matching part is arranged on the car door hanging plate or the self-closing heavy hammer, the stop component is used for correspondingly arranging the opening end of the car door upper sill or the opening end of the landing door upper sill, and the stop component comprises a stop part. When the elevator door motor is powered on, the stop part and the stop matching part are in a separated state, and the car door and the landing door can be normally opened and closed. When the elevator receives an emergency signal, such as a fire signal, the elevator runs to the near floor or the evacuation floor to open the door, and the power supply of the elevator door motor is cut off after the door is opened. Or, the elevator has a sudden power failure, and the backup power supply of the elevator is started, so that the elevator runs to an evacuation layer to open the door, and the power supply of the elevator door motor is cut off after the door is opened. When the power supply of the elevator door motor is cut off, the stop matching part is in stop matching with the stop part, so that the car door and the landing door can overcome the self-closing force of the landing door and keep an open state all the time, and the phenomenon that the elevator is trapped is effectively avoided.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to an elevator, and an auxiliary door opening device and method for the elevator.
Background
For a vertical elevator, in an emergency situation, such as a fire, the elevator may travel to a nearby floor to release passengers. However, when the elevator opens the door to release passengers at a nearby floor, the elevator master control system disconnects the power supply of the elevator door motor, and the elevator hall door can drive the car door to be closed due to the existence of self-closing force, so that the elevator is trapped, and the safety risk exists.
Disclosure of Invention
Therefore, the elevator, the auxiliary door opening device for the elevator and the method thereof are needed to be provided, so that the phenomenon that the elevator is trapped by people is effectively avoided, and the use safety is ensured.
An auxiliary door opening device of an elevator comprises a stop assembly and a stop matching part, wherein the stop matching part is arranged on a car door hanging plate or a self-closing heavy hammer, the stop assembly is arranged at the opening end of a car door upper sill or the opening end of a landing door upper sill correspondingly, and the stop assembly comprises a stop part; when the elevator door is powered off, the stopping part can be in stopping fit with the stopping matching part, so that the car door and the landing door can be kept in an open state.
In one embodiment, the detent engagement includes a detent engagement bracket for engaging the detent for detent when the elevator door is de-energized.
In one embodiment, the stop-and-fit bracket is provided with a first wedge surface and a second wedge surface, the first wedge surface is used for stop-and-fit with the stop part, and the second wedge surface is arranged opposite to the first wedge surface; the stopping part comprises a roller which can move along the extending direction of the first wedge-shaped surface and the second wedge-shaped surface under the extrusion of the stopping matching support.
In one embodiment, the stopper part comprises a permanent magnet, and the stopper fitting part comprises a suction plate magnetically matched with the permanent magnet.
In one embodiment, the stop part comprises a permanent magnet, and the permanent magnet is used for being in magnetic attraction fit with the side part of the self-closing weight when the elevator door is powered off.
In one embodiment, the stop assembly further comprises a driving member drivingly connected to the stop portion, the driving member being configured to move the stop portion when the elevator door machine is powered off and powered on.
In one embodiment, the drive member includes an electromagnetic coil for electrical connection with a power source of the elevator door motor; the electromagnetic coil is provided with an accommodating cavity and a through hole communicated with the accommodating cavity, a moving shaft is arranged in the through hole, the stopping part is connected with the moving shaft, an elastic part is sleeved outside the moving shaft, one end of the elastic part is abutted against the electromagnetic coil, and the other end of the elastic part is abutted against the stopping part; the movable shaft can move into the containing cavity when the electromagnetic coil is electrified and move out of the containing cavity under the action of the elastic piece when the electromagnetic coil is not electrified.
An elevator auxiliary door opening method is provided, the elevator auxiliary door opening device comprises the following steps:
the elevator master control system receives the emergency signal or the elevator is powered off and starts a backup power supply, and controls an elevator door motor to drive a car door to open at a nearby floor or an evacuation floor, and the landing door is driven by the car door to open;
the power supply of the elevator door motor is disconnected, the stopping part is in stopping fit with the stopping matching part, and the car door and the landing door are kept in an open state.
In one embodiment, after the step of disconnecting the power supply of the elevator door motor, the stopping part is in stopping fit with the stopping matching part, and the car door and the landing door are kept in an open state, the method further comprises the following steps:
the emergency signal is eliminated, or the elevator is powered on, and the stopping part is separated from the stopping matching part;
the elevator door machine drives the car door to close, and the landing door is closed under the driving of the car door.
The elevator comprises the elevator auxiliary door opening device, wherein the elevator auxiliary door opening device is correspondingly arranged on a car door side or a landing door side.
According to the elevator, the elevator auxiliary door opening device and the elevator auxiliary door opening method, when the elevator door motor is powered on, the stopping part and the stopping matching part are in a separated state, and the car door and the landing door can be normally opened and closed. When the elevator receives an emergency signal, such as a fire signal, the elevator runs to the near floor or the evacuation floor to open the door, and the power supply of the elevator door motor is cut off after the door is opened. Or, the elevator has a sudden power failure, and the backup power supply of the elevator is started, so that the elevator runs to an evacuation layer to open the door, and the power supply of the elevator door motor is cut off after the door is opened. When the power supply of the elevator door motor is cut off, the stop matching part is in stop matching with the stop part, so that the car door and the landing door can overcome the self-closing force of the landing door and keep an open state all the time, and the phenomenon that the elevator is trapped is effectively avoided.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
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 without creative efforts.
Fig. 1 is a first structural view illustrating an auxiliary door opening device of an elevator according to an embodiment of the present invention installed on a door side;
fig. 2 is a schematic structural view of the auxiliary door opening device of the elevator shown in fig. 1 in a state where the elevator door is powered;
fig. 3 is a schematic structural diagram of the auxiliary door opening device of the elevator shown in fig. 1 in a power-off state of an elevator door motor;
fig. 4 is a process diagram of the elevator auxiliary door opening device shown in fig. 1 for manually pushing a door in a power-off state of an elevator door motor;
fig. 5 is a second schematic structural view of the elevator auxiliary door opener according to the embodiment of the present invention installed on the door side;
fig. 6 is a schematic structural view of the auxiliary door opening device of the elevator shown in fig. 5;
fig. 7 is a third schematic structural view of an elevator auxiliary door opener according to an embodiment of the present invention installed on a car door side;
fig. 8 is a schematic structural view of an elevator auxiliary door opening device according to an embodiment of the present invention installed on a landing door side;
fig. 9 is a schematic structural view of the auxiliary door opening device of the elevator shown in fig. 8.
The reference numbers illustrate: 10. an elevator auxiliary door opener; 11. a stop engagement portion; 111. a stop-fit bracket; 1111. a first wedge-shaped face; 1112. a second wedge-shaped face; 112. sucking a plate; 12. a stop assembly; 121. a drive member; 1211. an electromagnetic coil; 122. a stopper portion; 1221. a roller; 1222. a permanent magnet; 123. a movable shaft; 124. an elastic member; 20. the car door is provided with a sill; 21. a car door linkage mechanism; 22. a car door hanging plate; 30. a car door; 40. a landing door is arranged above the sill; 41. a self-closing mechanism; 411. a wire rope; 412. a self-closing weight; 50. a landing door.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Referring to fig. 1, 2 and 8, an elevator auxiliary door opener 10 according to an embodiment of the present invention includes a stop component 12 and a stop matching portion 11. The stop engagement portion 11 is provided on the door hanger 22 or the self-closing weight 412. The stopping assembly 12 is configured to be correspondingly disposed at the opening end of the car door sill 20 or the opening end of the landing door sill 40, and the stopping assembly 12 includes a stopping portion 122. Wherein, when the elevator door is powered off, the stopping part 122 is in stopping fit with the stopping fitting part 11 for keeping the car door 30 and the landing door 50 in an opening state.
It is to be understood that the elevator auxiliary door opening device 10 can be installed at the door side with reference to fig. 1, 5 and 7. Specifically, the stop fitting portion 11 is provided on the door hanging plate 22, and the stop member 12 is provided on the open end of the door sill 20. Referring to fig. 8, the auxiliary door opener 10 of the elevator may also be installed at the landing door side. Specifically, the stop matching part 11 is arranged on the self-closing weight 412, and the stop component 12 is arranged at the opening end of the landing sill 40.
The open end of the car door upper threshold 20 means that the car door upper threshold 20 corresponds to one end of the car door 30 after the car door 30 is completely opened. The opening end of the landing door sill 40 means that the landing door sill 40 corresponds to one end of the landing door 50 after the landing door 50 is completely opened.
When the elevator door opening assisting device is powered on, the stopping part 122 and the stopping matching part 11 are in a separated state, and the car door and the landing door can be normally opened and closed. When the elevator receives an emergency signal, such as a fire signal, the elevator runs to the near floor or the evacuation floor to open the door, and the power supply of the elevator door motor is cut off after the door is opened. Or the elevator is suddenly powered off, the backup power supply of the elevator is started, the elevator runs to a layer close to the elevator or an evacuation layer, the door is opened, and the power supply of the elevator door motor is cut off after the door is opened. When the power of the elevator door motor is cut off, the stopping part 122 is in stopping fit with the stopping matching part 11, so that the car door 30 and the landing door 50 can overcome the self-closing force of the landing door 50 and keep an open state all the time, and the phenomenon that the elevator is trapped is effectively avoided.
In one embodiment, referring to fig. 1, 2 and 3, the detent engagement 11 includes a detent engagement bracket 111, the detent engagement bracket 111 for engaging the detent 122 for detent when the elevator door is powered off. If the auxiliary door opener 10 of the elevator is installed on the car door side, the stopper assembly 12 and the stopper fitting bracket 111 are provided in the height direction of the car; specifically, the locking assembly 12 is disposed at the open end of the door sill 20, and the locking engagement bracket 111 is disposed on the door hanging plate 22. If the auxiliary door opener 10 of the elevator is installed at the landing door side, the stopping component 12 and the stopping matching bracket 111 are arranged along the width direction of the elevator car; specifically, the stop assembly 12 is disposed at the opening end of the landing sill 40, and the stop engaging bracket 111 is disposed on the self-closing weight 412.
Further, referring to fig. 2, 3 and 4, the stop-engagement bracket 111 is provided with a first wedge surface 1111 and a second wedge surface 1112, the first wedge surface 1111 is used for stop-engagement with the stop portion 122, and the second wedge surface 1112 is disposed opposite to the first wedge surface 1111. Specifically, the stop-engagement bracket 111 is further provided with a flat surface connecting the tops of the first and second wedge-shaped surfaces 1111, 1112. The stopper 122 is movable in the extending direction of the first wedge-face 1111 and the second wedge-face 1112 under the pressing of the stopper fitting bracket 111. When the elevator door motor is in a power-off state, the car door 30 or the landing door 50 is manually pushed in the door closing direction, so that the stop matching bracket 111 is driven to move in the door closing direction, the stop matching bracket 111 extrudes the stop part 122 in the moving process, and the stop part 122 moves from the first wedge-shaped surface 1111 to the second wedge-shaped surface 1112. The stop engagement bracket 111 continues to be moved in the door closing direction, the stop portion 122 is separated from the second wedge-shaped surface 1112, and the elevator normally performs door opening and closing.
If the auxiliary door opener 10 is installed on the car door side, the first wedge-shaped surface 1111 and the second wedge-shaped surface 1112 are disposed opposite to each other in the car width direction. If the auxiliary door opener 10 is installed on the landing door side, the first wedge-shaped surface 1111 and the second wedge-shaped surface 1112 are disposed opposite to each other in the height direction of the car.
Alternatively, referring to fig. 2, 3 and 4, the stopper 122 includes a roller 1221. Therefore, in the process of manually pushing the door, the roller 1221 is respectively in rolling fit with the first wedge-shaped surface 1111 and the second wedge-shaped surface 1112, so that only rolling friction force needs to be overcome, and the difficulty in manually opening and closing the door is reduced.
In another embodiment, referring to fig. 5-9, the stopper 122 includes a permanent magnet 1222 and the stopper fitting portion 11 includes a suction plate 112 magnetically fitted with the permanent magnet 1222. Specifically, the suction plate 112 and the permanent magnet 1222 are configured to be disposed in the width direction of the car. When the elevator receives an emergency signal, such as a fire signal, the elevator runs to the near floor or the evacuation floor to open the door, and the power supply of the elevator door motor is cut off after the door is opened. Or, the elevator has a sudden power failure, and the backup power supply of the elevator is started, so that the elevator runs to an evacuation layer to open the door, and the power supply of the elevator door motor is cut off after the door is opened. When the power of the elevator door motor is cut off, the permanent magnet 1222 is matched with the suction plate 112 in a magnetic attraction manner, so that the car door 30 and the landing door 50 can overcome the self-closing force of the landing door 50 and keep an open state all the time, and the phenomenon that the elevator is trapped by people is effectively avoided.
Specifically, if the auxiliary door opener 10 of the elevator is installed on the door side, the suction plate 112 is provided on the door hanging plate 22, and the permanent magnet 1222 is provided on the door opening end of the door sill 20. If the auxiliary door opener 10 is installed on the landing door, the suction plate 112 is disposed on the self-closing weight 412, and the permanent magnet 1222 is disposed at the opening end of the landing door sill 40.
Of course, in other embodiments, referring to fig. 8 and 9, if the auxiliary door opener 10 is installed on the landing door side, the stopping member 122 includes a permanent magnet 1222, and the permanent magnet 1222 is configured to magnetically engage with the side of the self-closing weight 412 when the elevator door is powered off. It can be understood that the side of the self-closing weight 412 is a stop fitting portion 11 magnetically engaged with the permanent magnet 1222.
In one embodiment, referring to fig. 2, 6 and 9, the stop assembly 12 further includes a driver 121. The driving member 121 is drivingly connected to the stopper 122, and the driving member 121 is used for driving the stopper 122 to move when the elevator door is powered off and powered on. When the elevator receives an emergency signal, such as a fire signal, the elevator runs to the near floor or the evacuation floor to open the door, and the power supply of the elevator door motor is cut off after the door is opened. Or, the elevator has a sudden power failure, and the backup power supply of the elevator is started, so that the elevator runs to an evacuation layer to open the door, and the power supply of the elevator door motor is cut off after the door is opened. Then, the driving member 121 drives the stopping portion 122 to move toward the direction close to the stopping engagement portion 11 until the stopping engagement portion 11 is in stopping engagement with the stopping portion 122, so that the car door 30 and the landing door 50 are always kept in an open state, and the phenomenon that the elevator is trapped is effectively avoided. When the emergency signal is eliminated or the elevator is powered on, the driving member 121 drives the stopping portion 122 to move in a direction away from the stopping matching portion 11 until the stopping portion 122 is separated from the stopping matching portion 11, so that the elevator door motor can drive the car door 30 to close, and the landing door 50 is driven by the car door 30 to close.
Further, referring to fig. 2, 6 and 9, the drive member 121 includes a solenoid 1211, the solenoid 1211 being adapted for electrical connection with a power source of the elevator door motor. Specifically, the coil of the electromagnetic coil 1211 is electrically connected to a power source of the elevator door motor. The electromagnetic coil 1211 has a receiving cavity and a through hole communicating with the receiving cavity, a moving shaft 123 is disposed in the through hole, and the stopper 122 is connected to the moving shaft 123. An elastic member 124 is fitted around the moving shaft 123, and one end of the elastic member 124 abuts against the electromagnetic coil 1211 while the other end abuts against the stopper 122. The movable shaft 123 is movable into the housing chamber when the electromagnetic coil 1211 is energized, and movable out of the housing chamber by the elastic member 124 when the electromagnetic coil 1211 is de-energized. When the elevator receives an emergency signal, such as a fire signal, the elevator runs to the near floor or the evacuation floor to open the door, and the power supply of the elevator door motor is cut off after the door is opened. Or, the elevator has a sudden power failure, and the backup power supply of the elevator is started, so that the elevator runs to an evacuation layer to open the door, and the power supply of the elevator door motor is cut off after the door is opened. When the electromagnetic coil 1211 is de-energized, the moving shaft 123 moves towards the outside of the receiving cavity under the action of the elastic member 124, that is, moves towards the direction close to the stop matching part 11, so that the stop matching part 11 is in stop matching with the stop part 122, and thus the car door 30 and the landing door 50 can overcome the self-closing force of the landing door 50 and keep an open state all the time, and the phenomenon that people are trapped by the elevator is effectively avoided. When the elevator door is powered on, the moving shaft 123 moves into the accommodating cavity under the action of the magnetic field generated by the electromagnetic coil 1211, namely moves in the direction away from the stop matching part 11, and the stop part 122 is separated from the stop matching part 11, so that the elevator can normally open and close the door. In this way, by using the electromagnetic coil 1211 as the driving force, the electromagnetic coil 1211 can operate in accordance with the charged state of the elevator door motor, and the response speed is high. In addition, the electromagnetic coil 1211 is directly connected with a power supply of the elevator door motor, so that the installation efficiency is high, the structure is simple and reliable, and the cost is low. Of course, in other embodiments, the driving member 121 may be other mechanical members.
The elevator auxiliary door opening method of one embodiment of the invention provides the elevator auxiliary door opening device 10 of any one embodiment. The elevator auxiliary door opening method comprises the following steps:
s100, the elevator master control system receives an emergency signal, or the elevator is powered off and starts a backup power supply, the elevator door motor is controlled to drive the car door 30 to open the door on a nearby floor or an evacuation floor, and the floor door 50 is controlled to open the door under the driving of the car door 30;
and S200, disconnecting the power supply of the elevator door motor, and keeping the stopping part 122 in stopping fit with the stopping matching part 11, so that the car door 30 and the landing door 50 are kept in an opening state.
Thus, when the elevator door motor is powered on, the stopping part 122 and the stopping matching part 11 are in a separated state, and the car door and the landing door can be normally opened and closed. When the elevator receives an emergency signal, such as a fire signal, the elevator runs to the near floor or the evacuation floor to open the door, and the power supply of the elevator door motor is cut off after the door is opened. Or the elevator is suddenly powered off, the backup power supply of the elevator is started, the elevator runs to a layer close to the elevator or an evacuation layer, the door is opened, and the power supply of the elevator door motor is cut off after the door is opened. When the power of the elevator door motor is cut off, the stopping part 122 is in stopping fit with the stopping matching part 11, so that the car door 30 and the landing door 50 can overcome the self-closing force of the landing door 50 and keep an open state all the time, and the phenomenon that the elevator is trapped is effectively avoided.
Further, after step S200, the method further includes the following steps:
s300, eliminating the emergency signal or electrifying the elevator, and separating the stopping part 122 from the stopping matching part 11;
s400, the elevator door motor drives the car door 30 to close, and the landing door 50 is driven by the car door 30 to close.
Referring to fig. 1, 5, 7 and 8, the elevator according to an embodiment of the present invention includes the auxiliary door opener 10 of any one of the embodiments, and the auxiliary door opener 10 is correspondingly installed on the car door 30 side or the landing door 50 side.
Alternatively, the auxiliary door opener 10 is installed on the car door 30 side, and stops the car door 30 so that the car door 30 is kept open, and the landing door 50 is also kept open by the engagement of the door vane and the landing door 50 lock. Specifically, the elevator door motor comprises a car door upper sill 20, a car door linkage mechanism 21 and a car door hanging plate 22, and the car door upper sill 20 comprises a door opening end. The car door linkage mechanism 21 is arranged on the car door upper sill 20 and is connected with the car door hanging plate 22. The car door 30 is connected with the car door hanging plate 22, and the car door 30 can be opened or closed under the driving of the car door linkage mechanism 21. The stop matching part 11 is arranged on the car door hanging plate 22, and the stop component 12 is arranged on the opening end of the car door upper threshold 20.
Alternatively, the auxiliary door opener 10 for an elevator is installed on the landing door 50 side, and stops the self-closing weight 412 to keep the landing door 50 in an open state, and the car door 30 is also kept in an open state by the engagement of the door vane and the landing door 50 lock. Specifically, the elevator comprises a landing door upper sill 40, a self-closing mechanism 41, a landing door 50 and the elevator auxiliary door opening device 10 of any one of the embodiments. The landing sill 40 includes an open end. The self-closing mechanism 41 includes a wire rope 411 and a self-closing weight 412, and the landing door 50 can be opened or closed by the cooperation of the wire rope 411 and the self-closing weight 412. The stop matching part 11 is arranged on the self-closing weight 412, and the stop component 12 is arranged on the landing upper threshold 40 corresponding to the opening end of the self-closing weight 412.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An auxiliary door opening device of an elevator is characterized by comprising a stop assembly and a stop matching part, wherein the stop matching part is arranged on a car door hanging plate or a self-closing heavy hammer, the stop assembly is correspondingly arranged at the door opening end of a car door sill or the door opening end of a landing door sill, and the stop assembly comprises a stop part; when the elevator door is powered off, the stopping part can be in stopping fit with the stopping matching part, so that the car door and the landing door can be kept in an open state.
2. The elevator auxiliary door opening device according to claim 1, wherein the detent engagement portion comprises a detent engagement bracket for engaging the detent portion for stopping when the elevator door motor is de-energized.
3. The elevator auxiliary door opening device according to claim 2, wherein the stop-engagement bracket is provided with a first wedge-shaped surface and a second wedge-shaped surface, the first wedge-shaped surface is used for performing stop-engagement with the stop portion, and the second wedge-shaped surface is arranged opposite to the first wedge-shaped surface;
the stopping part comprises a roller which can move along the extending direction of the first wedge-shaped surface and the second wedge-shaped surface under the extrusion of the stopping matching support.
4. The elevator auxiliary door opening device of claim 1, wherein the detent includes a permanent magnet and the detent engagement includes a suction plate magnetically engaged with the permanent magnet.
5. The auxiliary door opening device for elevators according to claim 1, wherein the stopper comprises a permanent magnet for magnetically engaging with a side of the self-closing weight when the elevator door machine is powered off.
6. The auxiliary door opener according to any one of claims 1 to 5, wherein the stopper assembly further comprises a driving member drivingly connected to the stopper, the driving member being configured to move the stopper when the elevator door machine is powered off and powered on.
7. The elevator auxiliary door opening device of claim 6, wherein the drive member comprises an electromagnetic coil for electrical connection with a power source of the elevator door motor; the electromagnetic coil is provided with an accommodating cavity and a through hole communicated with the accommodating cavity, a moving shaft is arranged in the through hole, the stopping part is connected with the moving shaft, an elastic part is sleeved outside the moving shaft, one end of the elastic part is abutted against the electromagnetic coil, and the other end of the elastic part is abutted against the stopping part; the movable shaft can move into the containing cavity when the electromagnetic coil is electrified and move out of the containing cavity under the action of the elastic piece when the electromagnetic coil is not electrified.
8. An elevator auxiliary door opening method, characterized in that the elevator auxiliary door opening device according to any one of claims 1 to 7 is provided, comprising the following steps:
the elevator master control system receives the emergency signal or the elevator is powered off and starts a backup power supply, and controls an elevator door motor to drive a car door to open at a nearby floor or an evacuation floor, and the landing door is driven by the car door to open;
the power supply of the elevator door motor is disconnected, the stopping part is in stopping fit with the stopping matching part, and the car door and the landing door are kept in an open state.
9. The method for opening the door of the elevator as claimed in claim 8, wherein the step of turning off the power of the elevator door, engaging the engaging portion with the engaging portion, and maintaining the door and the landing door in the opened state is followed by the step of:
the emergency signal is eliminated, or the elevator is powered on, and the stopping part is separated from the stopping matching part;
the elevator door machine drives the car door to close, and the landing door is closed under the driving of the car door.
10. An elevator, characterized in that the elevator comprises the elevator auxiliary door opening device according to any one of claims 1 to 7, and the elevator auxiliary door opening device is correspondingly installed on a car door side or a landing door side.
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| CN202111591400.0A CN114368665A (en) | 2021-12-23 | 2021-12-23 | Elevator, elevator auxiliary door opening device and method |
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| CN202111591400.0A CN114368665A (en) | 2021-12-23 | 2021-12-23 | Elevator, elevator auxiliary door opening device and method |
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Citations (10)
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|---|---|---|---|---|
| JPS60153383A (en) * | 1984-01-24 | 1985-08-12 | 株式会社東芝 | Switchgear for door of elevator |
| JPH01303286A (en) * | 1988-05-30 | 1989-12-07 | Mitsubishi Electric Corp | Door device for elevator |
| JPH0867476A (en) * | 1994-08-31 | 1996-03-12 | Mitsubishi Denki Bill Techno Service Kk | Elevator cage |
| JPH10226471A (en) * | 1997-02-18 | 1998-08-25 | Mitsubishi Denki Bill Techno Service Kk | Elevator landing door opening/closing device |
| JP2000086131A (en) * | 1998-09-17 | 2000-03-28 | Hitachi Ltd | Elevator |
| US20040104001A1 (en) * | 2002-07-15 | 2004-06-03 | Donnelly John D. | Automatically-closing screen door and closing speed adjuster for the same |
| US20100031473A1 (en) * | 2008-08-08 | 2010-02-11 | Manabu Hayahi | Tilt hinge capable of easily switching a movable range by a pushing operation |
| WO2012087373A1 (en) * | 2010-12-22 | 2012-06-28 | Otis Elevator Company | Elevator door motor including a stop member for holding doors open |
| JP2016190715A (en) * | 2015-03-31 | 2016-11-10 | 三菱電機ビルテクノサービス株式会社 | Door-closing blocking implement of elevator |
| CN113682929A (en) * | 2021-08-31 | 2021-11-23 | 日立电梯（中国）有限公司 | Door opening maintaining system applicable to elevator |
-
2021
- 2021-12-23 CN CN202111591400.0A patent/CN114368665A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60153383A (en) * | 1984-01-24 | 1985-08-12 | 株式会社東芝 | Switchgear for door of elevator |
| JPH01303286A (en) * | 1988-05-30 | 1989-12-07 | Mitsubishi Electric Corp | Door device for elevator |
| JPH0867476A (en) * | 1994-08-31 | 1996-03-12 | Mitsubishi Denki Bill Techno Service Kk | Elevator cage |
| JPH10226471A (en) * | 1997-02-18 | 1998-08-25 | Mitsubishi Denki Bill Techno Service Kk | Elevator landing door opening/closing device |
| JP2000086131A (en) * | 1998-09-17 | 2000-03-28 | Hitachi Ltd | Elevator |
| US20040104001A1 (en) * | 2002-07-15 | 2004-06-03 | Donnelly John D. | Automatically-closing screen door and closing speed adjuster for the same |
| US20100031473A1 (en) * | 2008-08-08 | 2010-02-11 | Manabu Hayahi | Tilt hinge capable of easily switching a movable range by a pushing operation |
| WO2012087373A1 (en) * | 2010-12-22 | 2012-06-28 | Otis Elevator Company | Elevator door motor including a stop member for holding doors open |
| JP2016190715A (en) * | 2015-03-31 | 2016-11-10 | 三菱電機ビルテクノサービス株式会社 | Door-closing blocking implement of elevator |
| CN113682929A (en) * | 2021-08-31 | 2021-11-23 | 日立电梯（中国）有限公司 | Door opening maintaining system applicable to elevator |
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