Middle-opening three-folding aluminum alloy elevator door

Abstract

The utility model discloses a center-split three-fold aluminum alloy elevator door which comprises six door leaves which are symmetrically distributed about the center axis, each door leaf comprises a door plate (1) and a door frame (11), a displacement sensor (12) is arranged in each door frame (11), and an interferent detector (2) is arranged between the door frames (11) on the two sides of each door plate (1); a gap (3) is formed between every two adjacent door leaves, an anti-pinch triggering piece (4) is arranged at each gap (3), the anti-pinch triggering pieces (4), the interferent detectors (2) and the displacement sensors (12) are all electrically connected with the control system, and the control system is electrically connected with the early warning alarm, the emergency alarm and the elevator door system. The elevator has the advantages that early warning is conducted in advance, and the accident that hands and objects are clamped by the elevator is prevented.

Description

Technical Field

[0001] The utility model relates to an elevator door, in particular to a centrally divided three-fold aluminum alloy elevator door. Background Art

[0002] As a vertical means of transportation, the way the elevator car door is opened is directly related to the convenience and safety of passengers. At present, there are mainly the following ways to open the elevator car door: center-split, side-opening, rotary and folding. The center-split door is one of the most common ways to open the elevator car door. Its main feature is that the door leaf is separated from the middle to both sides, which can provide a larger door opening width, which is convenient for passengers to enter and exit quickly, and also convenient for disabled people and people with limited mobility. At present, in order to ensure the safety of elevator use, in order to prevent people from being pinched when the elevator door closes, the center-split door mostly uses safety light curtains installed on both sides of the elevator door, and uses light beam scanning to detect whether there is any object being pinched, and then controls the elevator door to close, to prevent accidents in which people are pinched in the middle when the elevator door closes. However, the elevator does not have good protective measures during the door opening process. There is a large gap between the elevator door and the front wall of the car, especially the tri-fold door, which has a multi-layer door leaf structure. There is also a certain gap between adjacent movable door leaves. If the fingers or clothes of the elevator passengers are close to the gap, they can easily be brought into the gap, causing accidents such as fingers or objects being pinched when the elevator door opens, which poses a great safety hazard. Utility Model Content

[0003] The purpose of the utility model is to provide a centrally divided three-fold aluminum alloy elevator door. The utility model has the characteristics of early warning and preventing accidents of hand or object being caught in the elevator.

[0004] The technical solution of the utility model is as follows: a centrally divided three-fold aluminum alloy elevator door, comprising six door leaves symmetrically distributed along a central axis, the door leaves comprising door panels and door frames, a displacement sensor being arranged in the door frame, and an interference detector being arranged between the door frames on both sides of each door panel; a gap is formed between adjacent door panels, an anti-pinch triggering member being arranged at the gap, the anti-pinch triggering member, the interference detector and the displacement sensor being electrically connected to a control system, and the control system being electrically connected to a warning alarm, an emergency alarm and an elevator door system respectively.

[0005] In the aforementioned centrally divided three-fold aluminum alloy elevator door, the interference detector includes an infrared transmitter located in a door frame on one side of the door panel and an infrared receiver located in a door frame on the other side of the door panel. The transmitting end of the infrared transmitter and the receiving end of the infrared receiver are opposite to each other, and a detection surface is formed on the surface of the door panel.

[0006] In the aforementioned centrally divided three-fold aluminum alloy elevator door, the anti-pinch trigger component includes a protective cover arranged on the door frame, the two sides of the protective cover are open, the opening on one side of the protective cover close to the gap is provided with a baffle for blocking the gap, and the opening on the side of the protective cover away from the gap is provided with an elastic membrane, and a deformation detector for detecting the deformation of the elastic membrane is provided in the protective cover, and the deformation detector is electrically connected to the control system.

[0007] In the aforementioned centrally divided three-fold aluminum alloy elevator door, the deformation detector is a distance sensor installed on the baffle or a resistance strain sensor installed on the elastic membrane.

[0008] In the aforementioned centrally divided three-fold aluminum alloy elevator door, a protective touch plate is also provided at one end of the protective cover, and the protective touch plate is rotatably connected to the outside of the protective cover through a rotating shaft, a torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected to the protective touch plate, and the other end of the torsion spring is connected to the protective cover, the outer end of the protective touch plate extends to the outside of the elastic membrane, and the inner end of the protective touch plate extends into the protective cover, and a pressure sensor that cooperates with the protective touch plate is provided inside the protective cover, and the pressure sensor is electrically connected to the control system.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model aims at the gap between the door leaves in the center-three-fold elevator door, provides an early warning for the situation that an object is attached to the door panel during the door opening process, and provides an anti-pinch trigger part at the gap to provide a safety protection function. If a person or an object touches the anti-pinch trigger part, an emergency alarm is issued and the elevator door is controlled to stop opening and move in the reverse direction until the person or the object is away from the anti-pinch trigger part, that is, away from the gap, to avoid accidental injuries such as pinching hands or objects in the gap during the elevator door opening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 It is a structural schematic diagram of the anti-pinch trigger.

[0013] Figure 3 It is a schematic diagram of the structure of the protective touch panel.

[0014] The markings in the accompanying drawings are: 1, door panel; 11, door frame; 12, displacement sensor; 2, interference detector; 21, infrared transmitter; 22, infrared receiver; 3, gap; 4, anti-pinch trigger; 41, protective cover; 42, baffle; 43, elastic membrane; 44, deformation detector; 45, protective touch panel; 46, rotating shaft; 47, pressure sensor. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0016] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] Example:

[0018] like Figure 1-Figure 3 As shown, a centrally divided three-fold aluminum alloy elevator door comprises six door leaves symmetrically distributed along a central axis, which are opened symmetrically from the middle to both sides, and the door leaves comprise door panels 1 and door frames 11, in which displacement sensors 12 are arranged, and interference detectors 2 are arranged between the door frames 11 on both sides of each door panel 1; gaps 3 are formed between adjacent door leaves, and anti-pinch triggers 4 are arranged at the gaps 3, and the anti-pinch triggers 4, the interference detectors 2, and the displacement sensors 12 are all electrically connected to a control system, and the control system is electrically connected to a warning alarm, an emergency alarm, and an elevator door system, respectively.

[0019] The movement of the door panel 1 is detected by the displacement sensor 12, whether there is an object in contact with the door panel 1 is detected by the interference detector 2, and the existence of the object in the gap 3 is detected by the anti-pinch trigger 4; if the displacement sensor 12 detects that the door panel 1 is moving and there is a human body or foreign object blocking the door panel 1, the interference detector 2 sends a signal to the control system, the control system sends a signal to the early warning alarm, and the early warning alarm issues an early warning; if the displacement sensor 12 detects that the door panel 1 is moving, and if the anti-pinch trigger 4 detects that a human body or foreign object contacts the anti-pinch trigger 4 in the gap 3, the anti-pinch trigger 4 sends a signal to the control system, the control system sends a signal to the emergency alarm and the elevator door system, the emergency alarm issues an emergency alarm, and the elevator door system controls the door panel 1 to move in the opposite direction until the person or object is away from the anti-pinch trigger to prevent the person or object from being pinched by the door gap during the elevator door opening process.

[0020] The interference detector 2 includes an infrared transmitter 21 located on the door frame 11 on one side of the door panel 1 and an infrared receiver 22 located on the door frame 11 on the other side of the door panel 1. The transmitting end of the infrared transmitter 21 and the receiving end of the infrared receiver 22 are opposite to each other, and a detection surface is formed on the surface of the door panel 1.

[0021] Multiple light beams are emitted by the transmitting end of the infrared transmitter 21, and the receiving end of the infrared receiver 22 receives the multiple light beams for scanning detection. If the light beam between the infrared transmitter 21 and the infrared receiver 22 is blocked by a person or an object, the infrared receiver 22 cannot receive the corresponding light beam, indicating that there is an interference on the surface of the door panel 1.

[0022] The anti-pinch trigger 4 includes a protective cover 41 disposed on the door frame 11, and the two sides of the protective cover 41 are open. The opening of the protective cover 41 close to the gap 3 is provided with a baffle 42 for shielding the gap 3, and the opening of the protective cover 41 away from the gap 3 is provided with an elastic membrane 43. A deformation detector 44 for detecting the deformation of the elastic membrane 43 is provided in the protective cover 41, and the deformation detector 44 is electrically connected to the control system. Multiple anti-pinch triggers 4 can be provided inside and outside the door leaf according to actual conditions.

[0023] When a person or an object contacts the elastic membrane 43 and causes the elastic membrane 43 to deform, the deformation detector 44 detects the deformation and sends a signal to the control system. The control system determines that there is a hand or object pinching situation in the elevator, and then sends a signal to the elevator door system to stop the elevator door from opening and move in the opposite direction until the person or object is away from the anti-pinch trigger 4, that is, away from the gap 3, and the elastic membrane 43 returns to its original position.

[0024] The deformation detector 44 adopts a distance sensor installed on the baffle 42 or a resistance strain sensor installed on the elastic film 43. The distance sensor can be a photoelectric proximity sensor or an ultrasonic proximity sensor, which measures the distance between the baffle and the elastic film by emitting light or ultrasonic waves and receiving reflected light or ultrasonic waves. If the distance changes, it indicates that the elastic film 43 is deformed. The resistance strain sensor detects whether the resistance of the strain resistor sheet changes. If the resistance of the strain resistor sheet changes, it indicates that the elastic film 43 is deformed.

[0025] A protective touch plate 45 is also provided at one end of the protective cover 41. The protective touch plate 45 is rotatably connected to the outside of the protective cover 41 through a rotating shaft 46. A torsion spring is sleeved on the rotating shaft 46. One end of the torsion spring is connected to the protective touch plate 45, and the other end of the torsion spring is connected to the protective cover 41. The outer end of the protective touch plate 45 extends to the outside of the elastic membrane, and the inner end of the protective touch plate 45 extends into the protective cover 41. A pressure sensor 47 that cooperates with the protective touch plate 45 is provided inside the protective cover 41, and the pressure sensor 47 is electrically connected to the control system.

[0026] A protective touch plate 45 is also provided on the protective cover 41. When a human hand or a foreign object approaches the gap 3 as the door panel 1 moves, the human hand or a foreign object first touches the protective touch plate 45, and the protective touch plate 45 rotates to increase the gap space to protect the human hand or the foreign object. At the same time, the pressure sensor 47 detects a pressure change, and the pressure sensor 47 sends a signal to the control system, and the control system sends a signal to the early warning alarm, which plays a further secondary early warning role.

[0027] That is, during the process of opening the elevator door, if the door panel 1 is opening and moving, and there is a human body or foreign object on the door panel 1, the interference detector 2 sends a signal to the control system, the control system sends a signal to the early warning alarm, and the early warning alarm issues an early warning; if the person or object on the door panel still exists and moves with the door panel to the extrusion protection touch plate 45, the protection touch plate 45 rotates to increase the gap space to protect the human hand or foreign object, and at the same time, the pressure sensor 47 detects that the pressure changes and sends a signal to the control system, and the control system sends a signal to the early warning alarm for a secondary warning; if the person or object on the door panel still exists and moves with the door panel to the anti-pinch trigger 4, the elastic membrane 43 of the anti-pinch trigger 4 is deformed, then the anti-pinch trigger 4 sends a signal to the control system, the control system sends a signal to the emergency alarm and the elevator door system, the emergency alarm issues an emergency alarm, and the elevator door system controls the door panel 1 to move in the opposite direction until the person or object is away from the anti-pinch trigger, so as to prevent the person or object from being clamped by the door gap during the opening of the elevator door.

[0028] The parts not described in detail in the present invention are prior art and thus will not be described in detail here.

Claims

1. A centrally split three-fold aluminum alloy elevator door, characterized in that: The invention comprises six door leaves which are symmetrically distributed along a central axis, the door leaves comprising door panels (1) and door frames (11), a displacement sensor (12) being arranged in the door frames (11), and an interference detector (2) being arranged between the door frames (11) on both sides of each door panel (1); a gap (3) is formed between adjacent door leaves, an anti-pinch trigger (4) is arranged at the gap (3), the anti-pinch trigger (4), the interference detector (2) and the displacement sensor (12) are all electrically connected to a control system, and the control system is electrically connected to a warning alarm, an emergency alarm and an elevator door system respectively.

2. The center-split three-fold aluminum alloy elevator door according to claim 1, characterized in that: The interference detector (2) comprises an infrared transmitter (21) located on a door frame (11) on one side of the door panel (1) and an infrared receiver (22) located on a door frame (11) on the other side of the door panel (1), wherein a transmitting end of the infrared transmitter (21) and a receiving end of the infrared receiver (22) are opposite to each other and a detection surface is formed on the surface of the door panel (1).

3. The center-split three-fold aluminum alloy elevator door according to claim 1, characterized in that: The anti-pinch trigger (4) comprises a protective cover (41) arranged on the door frame (11), the two sides of the protective cover (41) are open, a baffle (42) for shielding the gap (3) is provided on the opening of the protective cover (41) close to the gap (3), an elastic membrane (43) is provided on the opening of the protective cover (41) away from the gap (3), a deformation detector (44) for detecting the deformation of the elastic membrane (43) is provided in the protective cover (41), and the deformation detector (44) is electrically connected to the control system.

4. The center-split three-fold aluminum alloy elevator door according to claim 3, characterized in that: The deformation detector (44) is a distance sensor installed on the baffle (42) or a resistance strain sensor installed on the elastic film.

5. The center-split three-fold aluminum alloy elevator door according to claim 3, characterized in that: A protective touch plate (45) is also provided at one end of the protective cover (41). The protective touch plate (45) is rotatably connected to the outside of the protective cover (41) via a rotating shaft (46). A torsion spring is sleeved on the rotating shaft (46). One end of the torsion spring is connected to the protective touch plate (45), and the other end of the torsion spring is connected to the protective cover (41). The outer end of the protective touch plate (45) extends to the outside of the elastic membrane, and the inner end of the protective touch plate (45) extends into the protective cover (41). A pressure sensor (47) that cooperates with the protective touch plate (45) is provided inside the protective cover (41). The pressure sensor (47) is electrically connected to the control system.

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