Elevator, elevator auxiliary door opening device and method

Abstract

The present invention relates to an elevator, an elevator auxiliary door opening device and a method. The elevator auxiliary door opening device comprises a stop assembly and a stop matching part. The stop matching part is arranged on a car door hanging plate or a self-closing weight, the stop assembly is used to correspond to the door opening end arranged on the upper sill of the car door or the door opening end of the upper sill of the floor door, and the stop assembly comprises a stop part. When the elevator door machine is powered on, the stop part and the stop matching part are in a separated state, and the car door and the floor door can open and close the door normally. When the elevator receives an emergency signal, such as a fire signal, the elevator runs to the nearest floor or the evacuation floor to open the door, and the power supply of the elevator door machine is cut off after the door is opened. Alternatively, the elevator suddenly loses power, and the elevator's backup power supply is started, so that the elevator runs to the evacuation floor to open the door, and the power supply of the elevator door machine is cut off after the door is opened. When the power supply of the elevator door machine is cut off, the stop matching part and the stop matching part are stopped, so that the car door and the floor door can overcome the self-closing force of the floor door and remain in an open state, effectively avoiding the phenomenon of people being trapped in the elevator.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to an elevator, an elevator auxiliary door opening device and a method. Background Art

[0002] For vertical elevators, in emergency situations, such as fire, the elevator will run to the nearest floor to release passengers. However, after the elevator opens the door at the nearest floor to release passengers, the elevator master control system disconnects the power supply of the elevator door machine, and the elevator hall door will drive the car door to close due to the self-closing force, resulting in the phenomenon of people being trapped in the elevator, which poses a safety risk. Summary of the invention

[0003] Based on this, it is necessary to provide an elevator, an elevator auxiliary door opening device and a method to effectively avoid the phenomenon of people being trapped in the elevator and ensure safety in use.

[0004] An elevator auxiliary door opening device includes a stop assembly and a stop matching part, wherein the stop matching part is used to be set on a car door hanging plate or a self-closing weight, and the stop assembly is used to correspond to the door opening end of the car door upper sill or the door opening end of the floor door upper sill. The stop assembly includes the stop part; wherein, when the elevator door machine is powered off, the stop part can be stop-matched with the stop matching part to keep the car door and the floor door in an open state.

[0005] In one of the embodiments, the stop-matching portion comprises a stop-matching bracket, and the stop-matching bracket is used to cooperate with the stop portion to stop when the elevator door machine is powered off.

[0006] In one embodiment, the stop mating bracket is provided with a first wedge surface and a second wedge surface, the first wedge surface is used for stop mating with the stop portion, and the second wedge surface is arranged opposite to the first wedge surface; the stop portion includes a roller, and the roller can move along the extension direction of the first wedge surface and the second wedge surface under the extrusion of the stop mating bracket.

[0007] In one embodiment, the stop portion includes a permanent magnet, and the stop mating portion includes a suction plate that magnetically engages with the permanent magnet.

[0008] In one of the embodiments, the stopper comprises a permanent magnet, and the permanent magnet is used to magnetically cooperate with the side of the self-closing weight when the elevator door machine is powered off.

[0009] In one of the embodiments, the stop assembly further includes a driving member, which is drivingly connected to the stop portion, and the driving member is used to drive the stop portion to move when the elevator door machine is powered off and powered on.

[0010] In one embodiment, the driving member includes an electromagnetic coil, which is used to be electrically connected to the power supply of the elevator door machine; the electromagnetic coil is provided with a receiving cavity and a through hole connected to the receiving cavity, a movable shaft is provided in the through hole, the stop portion is connected to the movable shaft, and an elastic member is provided on the outer sleeve of the movable shaft, one end of the elastic member abuts against the electromagnetic coil, and the other end abuts against the stop portion; the movable shaft can move into the receiving cavity when the electromagnetic coil is energized, and move out of the receiving cavity under the action of the elastic member when the electromagnetic coil is de-energized.

[0011] An elevator auxiliary door opening method is provided, and the elevator auxiliary door opening device is provided, comprising the following steps:

[0012] The elevator main control system receives an emergency signal, or the elevator is powered off and the backup power supply is started, and the elevator door machine is controlled to drive the car door to open at the nearest floor or evacuation floor, and the floor door is opened under the drive of the car door;

[0013] Disconnect the power supply of the elevator door machine, the stop part and the stop matching part will engage with each other, and the car door and the floor door will remain in the open state.

[0014] In one embodiment, after the step of disconnecting the power supply of the elevator door machine, the stopper and the stopper matching part are engaged with each other, and the car door and the landing door are kept in the open state, the following steps are also included:

[0015] When the emergency signal is eliminated or the elevator calls, the stopper and the stopper mating part are separated;

[0016] The elevator door machine drives the car door to close, and the floor door is closed under the drive of the car door.

[0017] An elevator comprises the elevator auxiliary door opening device, wherein the elevator auxiliary door opening device is correspondingly installed on the car door side or the landing door side.

[0018] In the above-mentioned elevator, elevator auxiliary door opening device and method, when the elevator door machine is powered on, the stop part and the stop matching part are in a separated state, and the car door and the floor door can open and close normally. When the elevator receives an emergency signal, such as a fire signal, the elevator runs to the nearest floor or evacuation floor to open the door, and the power supply of the elevator door machine is cut off after the door is opened. Alternatively, the elevator suddenly loses power, and the elevator's backup power supply is started, so that the elevator runs to the evacuation floor to open the door, and the power supply of the elevator door machine is cut off after the door is opened. When the power supply of the elevator door machine is cut off, the stop matching part and the stop matching part are stopped, so that the car door and the floor door can overcome the self-closing force of the floor door and remain in an open state, effectively avoiding the phenomenon of people being trapped in the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 The structure diagram of an elevator auxiliary door opening device installed on the car door side according to an embodiment of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 2 for Figure 1 The structure diagram of the elevator auxiliary door opening device shown in the figure is in the state where the elevator door machine is powered;

[0023] Figure 3 for Figure 1 The structure diagram of the elevator auxiliary door opening device shown in the figure is in the state where the elevator door machine loses power;

[0024] Figure 4 for Figure 1 The process diagram of the elevator auxiliary door opening device manually pushing the door when the elevator door machine loses power is shown;

[0025] Figure 5 The structure diagram of an elevator auxiliary door opening device installed on the car door side according to an embodiment of the present invention is shown in FIG. Figure 2 ;

[0026] Figure 6 for Figure 5 The structural schematic diagram of the elevator auxiliary door opening device shown;

[0027] Figure 7 The structure diagram of an elevator auxiliary door opening device installed on the car door side according to an embodiment of the present invention is shown in FIG. Figure 3 ;

[0028] Figure 8 This is a structural schematic diagram of an elevator auxiliary door opening device installed on the landing door side according to an embodiment of the present invention;

[0029] Fig. 9 for Figure 8 The structural schematic diagram of the elevator auxiliary door opening device is shown.

[0030] Explanation of the accompanying drawings: 10. Elevator auxiliary door opening device; 11. Stop fitting part; 111. Stop fitting bracket; 1111. First wedge surface; 1112. Second wedge surface; 112. Suction plate; 12. Stop assembly; 121. Driving member; 1211. Electromagnetic coil; 122. Stop part; 1221. Roller; 1222. Permanent magnet; 123. Moving shaft; 124. Elastic member; 20. Car door sill; 21. Car door linkage mechanism; 22. Car door hanging plate; 30. Car door; 40. Land door sill; 41. Self-closing mechanism; 411. Wire rope; 412. Self-closing weight; 50. Land door. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0032] See also Figure 1 , Figure 2 and Figure 8 The elevator auxiliary door opening device 10 according to one embodiment of the present invention comprises a stopper assembly 12 and a stopper matching portion 11. The stopper matching portion 11 is used to be arranged on the car door hanging plate 22 or the self-closing weight 412. The stopper assembly 12 is used to be arranged correspondingly on the door opening end of the car door upper sill 20 or the door opening end of the floor door upper sill 40, and the stopper assembly 12 comprises a stopper 122. When the elevator door machine is powered off, the stopper 122 is stopped and matched with the stopper matching portion 11 to keep the car door 30 and the floor door 50 in an open state.

[0033] Understandably, see Figure 1 , Figure 5 and Figure 7 The elevator auxiliary door opening device 10 can be installed on the side of the car door. Specifically, the stopper matching portion 11 is arranged on the car door hanging plate 22, and the stopper assembly 12 is arranged on the door opening end of the car door upper sill 20. Figure 8 The elevator auxiliary door opening device 10 can also be installed on the side of the landing door. Specifically, the stopper matching portion 11 is arranged on the self-closing heavy hammer 412, and the stopper assembly 12 is arranged on the door opening end of the upper sill 40 of the landing door.

[0034] It should be noted that the door opening end of the car door sill 20 refers to the end of the car door 30 corresponding to the car door 30 after the car door 30 is fully opened. The door opening end of the landing door sill 40 refers to the end of the landing door 50 corresponding to the landing door 50 after the landing door 50 is fully opened.

[0035] In the above-mentioned elevator auxiliary door opening device, when the elevator door machine is powered on, the stop part 122 and the stop matching part 11 are in a separated state, and the car door and the floor door can open and close normally. When the elevator receives an emergency signal, such as a fire signal, the elevator runs to the nearest floor or evacuation floor to open the door, and the power supply of the elevator door machine is cut off after the door is opened. Alternatively, the elevator suddenly loses power, and the elevator's backup power supply is started, so that the elevator runs to the nearest floor or evacuation floor to open the door, and the power supply of the elevator door machine is cut off after the door is opened. When the power supply of the elevator door machine is cut off, the stop part 122 and the stop matching part 11 are stopped and matched, so that the car door 30 and the floor door 50 can overcome the self-closing force of the floor door 50 and remain in an open state, effectively avoiding the phenomenon of people being trapped in the elevator.

[0036] In one embodiment, see Figure 1 , Figure 2 and Figure 3 The stopper matching part 11 includes a stopper matching bracket 111, and the stopper matching bracket 111 is used to cooperate with the stopper 122 to stop when the elevator door machine is powered off. It should be noted that if the elevator auxiliary door opening device 10 is installed on the car door side, the stopper assembly 12 and the stopper matching bracket 111 are arranged along the height direction of the car; specifically, the stopper assembly 12 is arranged at the door opening end of the car door upper sill 20, and the stopper matching bracket 111 is arranged on the car door hanging plate 22. If the elevator auxiliary door opening device 10 is installed on the floor door side, the stopper assembly 12 and the stopper matching bracket 111 are arranged along the width direction of the car; specifically, the stopper assembly 12 is arranged at the door opening end of the floor door upper sill 40, and the stopper matching bracket 111 is arranged on the self-closing weight 412.

[0037] Further, see Figure 2 , Figure 3 and Figure 4 The stopper-matching bracket 111 is provided with a first wedge-shaped surface 1111 and a second wedge-shaped surface 1112. The first wedge-shaped surface 1111 is used for stopper-matching with the stopper 122, and the second wedge-shaped surface 1112 is arranged opposite to the first wedge-shaped surface 1111. Specifically, the stopper-matching bracket 111 is also provided with a flat surface, and the flat surface connects the top of the first wedge-shaped surface 1111 and the second wedge-shaped surface 1112. The stopper 122 can move along the extension direction of the first wedge-shaped surface 1111 and the second wedge-shaped surface 1112 under the pressure of the stopper-matching bracket 111. When the elevator door machine is in a power-off state, the car door 30 or the floor door 50 is manually pushed in the door closing direction, thereby driving the stopper-matching bracket 111 to move in the door closing direction. The stopper-matching bracket 111 squeezes the stopper 122 during the movement, and the stopper 122 moves from the first wedge-shaped surface 1111 to the second wedge-shaped surface 1112. The stopper matching bracket 111 is continuously moved in the door closing direction, the stopper portion 122 is separated from the second wedge surface 1112, and the elevator door is opened and closed normally.

[0038] It should be noted that if the elevator auxiliary door opening device 10 is installed on the car door side, the first wedge surface 1111 and the second wedge surface 1112 are arranged opposite to each other along the width direction of the car. If the elevator auxiliary door opening device 10 is installed on the landing door side, the first wedge surface 1111 and the second wedge surface 1112 are arranged opposite to each other along the height direction of the car.

[0039] Optionally, see Figure 2 , Figure 3 and Figure 4 The stopper 122 includes a roller 1221. In this way, when the door is pushed manually, the roller 1221 rolls with the first wedge surface 1111 and the second wedge surface 1112 respectively, so that only the rolling friction force needs to be overcome, thereby reducing the difficulty of manually opening and closing the door.

[0040] In another embodiment, see Figures 5 to 9 , the stopper 122 includes a permanent magnet 1222, and the stopper matching part 11 includes a suction plate 112 that is magnetically matched with the permanent magnet 1222. Specifically, the suction plate 112 and the permanent magnet 1222 are used to be arranged along the width direction of the car. When the elevator receives an emergency signal, such as a fire signal, the elevator runs to the nearest floor or evacuation floor to open the door, and the power supply of the elevator door machine is cut off after the door is opened. Alternatively, the elevator suddenly loses power, and the backup power supply of the elevator is started, so that the elevator runs to the evacuation floor to open the door, and the power supply of the elevator door machine is cut off after the door is opened. When the power supply of the elevator door machine is cut off, the permanent magnet 1222 is magnetically matched with the suction plate 112, so that the car door 30 and the floor door 50 can overcome the self-closing force of the floor door 50 and remain in an open state, effectively avoiding the phenomenon of people being trapped in the elevator.

[0041] Specifically, if the elevator auxiliary door opening device 10 is installed on the car door side, the suction plate 112 is arranged on the car door hanging plate 22, and the permanent magnet 1222 is arranged on the door opening end of the car door upper sill 20. If the elevator auxiliary door opening device 10 is installed on the landing door side, the suction plate 112 is arranged on the self-closing weight 412, and the permanent magnet 1222 is arranged on the door opening end of the landing door upper sill 40.

[0042] Of course, in other embodiments, see Figure 8 and Fig. 9 If the elevator auxiliary door opening device 10 is arranged on the landing door side, the stopper 122 includes a permanent magnet 1222, and the permanent magnet 1222 is used to magnetically cooperate with the side of the self-closing weight 412 when the elevator door machine is powered off. It can be understood that the side of the self-closing weight 412 is a stopper matching part 11 that magnetically cooperates with the permanent magnet 1222.

[0043] In one embodiment, see Figure 2 , Figure 6 and Fig. 9The stop assembly 12 also includes a driving member 121. The driving member 121 is drivingly connected to the stop portion 122, and the driving member 121 is used to drive the stop portion 122 to move when the elevator door machine is powered off and powered on. When the elevator receives an emergency signal, such as a fire signal, the elevator runs to the nearest floor or evacuation floor to open the door, and the power supply of the elevator door machine is cut off after the door is opened. Or, the elevator suddenly loses power, and the elevator's backup power supply is started, so that the elevator runs to the evacuation floor to open the door, and the power supply of the elevator door machine is cut off after the door is opened. Then, the driving member 121 drives the stop portion 122 to move in the direction close to the stop matching portion 11, until the stop matching portion 11 and the stop portion 122 are stop-matched, so that the car door 30 and the floor door 50 remain in an open state, effectively avoiding the phenomenon of people being trapped in the elevator. When the emergency signal is eliminated or the elevator receives a call, the driving member 121 drives the stop portion 122 to move away from the stop matching portion 11 until the stop portion 122 is separated from the stop matching portion 11, so that the elevator door machine can drive the car door 30 to close, and the floor door 50 is closed under the drive of the car door 30.

[0044] Further, see Figure 2 , Figure 6 and Fig. 9The driving member 121 includes an electromagnetic coil 1211, and the electromagnetic coil 1211 is used to be electrically connected to the power supply of the elevator door machine. Specifically, the coil in the electromagnetic coil 1211 is electrically connected to the power supply of the elevator door machine. The electromagnetic coil 1211 is provided with a receiving cavity and a through hole communicating with the receiving cavity, and a moving shaft 123 is provided in the through hole, and the stopper 122 is connected to the moving shaft 123. An elastic member 124 is provided on the outer sleeve of the moving shaft 123, and one end of the elastic member 124 abuts against the electromagnetic coil 1211, and the other end abuts against the stopper 122. The moving shaft 123 can move into the receiving cavity when the electromagnetic coil 1211 is energized, and move out of the receiving cavity under the action of 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 nearest floor or evacuation floor to open the door, and the power supply of the elevator door machine is cut off after the door is opened. Or, the elevator suddenly loses power, and the elevator's backup power supply starts, so that the elevator runs to the evacuation floor and opens the door. After the door is opened, the power supply of the elevator door machine is cut off. The electromagnetic coil 1211 loses power, and the movable shaft 123 moves outside the receiving cavity under the action of the elastic member 124, that is, moves in the direction close to the stop fitting part 11, so that the stop fitting part 11 and the stop fitting part 122 are stop-fitted, so that the car door 30 and the floor door 50 can overcome the self-closing force of the floor door 50 and remain in the open state, effectively avoiding the phenomenon of people being trapped in the elevator. When the elevator door machine is powered on, the movable shaft 123 moves into the receiving cavity under the action of the magnetic field generated by the electromagnetic coil 1211, that is, moves in the direction away from the stop fitting part 11, and the stop fitting part 122 is separated from the stop fitting part 11, so that the elevator can open and close the door normally. In this way, the electromagnetic coil 1211 is used as the driving force, and the electromagnetic coil 1211 can act according to the charged state of the elevator door machine, and the response speed is fast. In addition, the electromagnetic coil 1211 can be directly connected to the power supply of the elevator door machine, which has high installation efficiency, simple and reliable structure and low cost. Of course, in other embodiments, the driving member 121 can also be other mechanical components.

[0045] An elevator assisted door opening method according to an embodiment of the present invention provides an elevator assisted door opening device 10 according to any of the above embodiments. The elevator assisted door opening method comprises the following steps:

[0046] S100, the elevator main control system receives an emergency signal, or the elevator is powered off and the backup power supply is started, and the elevator door machine is controlled to drive the car door 30 to open at the nearest floor or evacuation floor, and the floor door 50 is opened under the drive of the car door 30;

[0047] S200, the power supply of the elevator door machine is turned off, the stopper 122 is engaged with the stopper matching part 11, and the car door 30 and the landing door 50 remain in the open state.

[0048] In this way, when the elevator door machine is powered on, the stopper 122 and the stopper matching part 11 are in a separated state, and the car door and the floor door can open and close normally. When the elevator receives an emergency signal, such as a fire signal, the elevator runs to the nearest floor or evacuation floor to open the door, and the power supply of the elevator door machine is cut off after the door is opened. Alternatively, the elevator suddenly loses power, and the elevator's backup power supply is started, so that the elevator runs to the nearest floor or evacuation floor to open the door, and the power supply of the elevator door machine is cut off after the door is opened. When the power supply of the elevator door machine is cut off, the stopper 122 and the stopper matching part 11 are stopped and matched, so that the car door 30 and the floor door 50 can overcome the self-closing force of the floor door 50 and remain in an open state, effectively avoiding the phenomenon of people being trapped in the elevator.

[0049] Furthermore, after step S200, the following steps are also included:

[0050] S300, the emergency signal is eliminated, or the elevator calls, and the stopper 122 is separated from the stopper matching part 11;

[0051] S400: The elevator door machine drives the car door 30 to close, and the landing door 50 is driven by the car door 30 to close.

[0052] See also Figure 1 , Figure 5 , Figure 7 and Figure 8 An elevator according to an embodiment of the present invention comprises an elevator auxiliary door opening device 10 according to any of the above embodiments, and the elevator auxiliary door opening device 10 is correspondingly installed on the side of the car door 30 or the side of the floor door 50.

[0053] Optionally, the elevator auxiliary door opening device 10 is installed on the side of the car door 30 to stop the car door 30 so that the car door 30 remains in an open state, and the floor door 50 also remains in an open state under the cooperation of the door knife and the floor door 50 lock. Specifically, the elevator door machine includes 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 includes an opening end. The car door linkage mechanism 21 is arranged on the car door upper sill 20 and is connected to the car door hanging plate 22. The car door 30 is connected to the car door hanging plate 22, and the car door 30 can be opened or closed under the drive of the car door linkage mechanism 21. The stop matching part 11 is arranged on the car door hanging plate 22, and the stop assembly 12 is arranged on the opening end of the car door upper sill 20.

[0054] Optionally, the elevator auxiliary door opening device 10 is installed on the side of the floor door 50 to stop the self-closing weight 412, so that the floor door 50 remains in an open state, and the car door 30 also remains in an open state under the cooperation of the door knife and the floor door 50 lock. Specifically, the elevator includes a floor door upper sill 40, a self-closing mechanism 41, a floor door 50 and an elevator auxiliary door opening device 10 of any of the above embodiments. The floor door upper sill 40 includes an opening end. The self-closing mechanism 41 includes a wire rope 411 and a self-closing weight 412, and the floor door 50 can be opened or closed under the cooperation of the wire rope 411 and the self-closing weight 412. The stop fitting portion 11 is provided on the self-closing weight 412, and the stop assembly 12 is provided on the floor door upper sill 40 corresponding to the opening end of the self-closing weight 412.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0056] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0059] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0060] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An elevator auxiliary door opening device, characterized in that: The invention comprises a stop assembly and a stop fitting part, wherein the stop fitting part is used to be arranged on a car door hanging plate or a self-closing weight, and the stop assembly is used to be arranged correspondingly on the door opening end of the car door upper sill or the door opening end of the floor door upper sill. The stop assembly comprises a driving member and a stop part, wherein the driving member is used to be electrically connected to the power supply of the elevator door machine, and the driving member is connected to the stop part in a driving manner, and the driving member is used to drive the stop part to move when the elevator door machine is powered off and powered on, and the stop fitting part comprises a stop fitting bracket, and the stop fitting bracket is provided with a first wedge-shaped surface and a second wedge-shaped surface, wherein the first wedge-shaped surface is used for engaging with the stop portion for engaging with the stop portion, the second wedge-shaped surface is arranged opposite to the first wedge-shaped surface, and the stop engaging bracket is used for engaging with the stop portion for engaging with the stop portion for engaging with the stop portion when the elevator door machine is powered off; the stop portion comprises a roller, and the roller can move along the extension direction of the first wedge-shaped surface and the second wedge surface under the extrusion of the stop engaging bracket; wherein, when the elevator door machine is powered off, the stop portion can engage with the stop engaging portion for engaging with the stop engaging portion to keep the car door and the floor door in an open state.

2. The elevator auxiliary door opening device according to claim 1, characterized in that: When the stop fitting portion is arranged on the car door hanging plate and the stop assembly is arranged on the door opening end of the car door upper sill, the first wedge-shaped surface and the second wedge-shaped surface are arranged opposite to each other along the width direction of the car.

3. The elevator auxiliary door opening device according to claim 1, characterized in that: When the stop fitting portion is arranged on the self-closing weight and the stop assembly is arranged on the door opening end of the upper sill of the landing door, the first wedge surface and the second wedge surface are arranged opposite to each other along the height direction of the car.

4. The elevator auxiliary door opening device according to claim 1, characterized in that: The driving component includes an electromagnetic coil, which is used to be electrically connected to the power supply of the elevator door machine; the electromagnetic coil is provided with a receiving cavity and a through hole connected to the receiving cavity, a movable shaft is provided in the through hole, the stop portion is connected to the movable shaft, and an elastic member is provided on the outer sleeve of the movable shaft, one end of the elastic member abuts against the electromagnetic coil, and the other end abuts against the stop portion; the movable shaft can move into the receiving cavity when the electromagnetic coil is energized, and move out of the receiving cavity under the action of the elastic member when the electromagnetic coil is de-energized.

5. An elevator assisted door opening method, characterized in that: An elevator auxiliary door opening device according to any one of claims 1 to 4 is provided, comprising the following steps: The elevator main control system receives an emergency signal, or the elevator is powered off and the backup power supply is started, and the elevator door machine is controlled to drive the car door to open at the nearest floor or evacuation floor, and the floor door is opened under the drive of the car door; Disconnect the power supply of the elevator door machine, the stop part and the stop matching part will engage with each other, and the car door and the floor door will remain in the open state.

6. The elevator assisted door opening method according to claim 5, characterized in that: After the step of disconnecting the power supply of the elevator door machine, the stopper and the stopper matching part are engaged with each other, and the car door and the landing door are kept in the open state, the following steps are also included: When the emergency signal is eliminated or the elevator calls, the stopper and the stopper mating part are separated; The elevator door machine drives the car door to close, and the floor door is closed under the drive of the car door.

7. An elevator, characterized in that: It comprises an elevator auxiliary door opening device as described in any one of claims 1 to 4, and the elevator auxiliary door opening device is correspondingly installed on the car door side or the floor door side.

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