Anti-pinch device for elevator door
By designing anti-pinch devices such as touch panels, return springs and magnetic switches on the elevator door, the problem of pinching fingers in the car door is solved, safety is improved, and the risk of injury and damage caused by pinching fingers is reduced.
Patent Information
- Application Number
- CN202422559907.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-23
AI Technical Summary
The car doors in existing elevators are prone to pinching hands, especially in crowded places, which can easily cause injuries such as finger fractures, posing a safety hazard.
A hand-pinch prevention device for elevator doors is designed, which includes a touch panel, a return spring, a magnet, and a magnetic control switch. The devices are connected via a hinge and the magnetic control switch is connected in series with the elevator control system. When a hand or an obstacle touches the touch panel, the touch panel rotates, driving the magnet to trigger the magnetic control switch, controlling the door to open and preventing hand pinching.
It effectively reduces injuries and property damage caused by car door pinching, reduces the risk of safety accidents, and protects the safety of passengers and property.
Smart Images
Figure CN223316234U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevator doors, in particular to an elevator door anti-hand pinching device. Background Art
[0002] An elevator is a mechanical device used to transport people or goods vertically. It typically consists of a car, guide rails, a drive system, and a control system. It is widely used in construction sites, factories, warehouses, shopping malls, and other locations. During elevator operation, a closed elevator door effectively prevents people from accidentally falling through the opening between the car and the floor, protecting their lives. It also blocks foreign objects such as debris and tools from entering the car, preventing interference and damage to the elevator's operation. It also reduces the risk of accidents caused by foreign objects.
[0003] In daily work, it is found that when the car door of an existing elevator is in use and the car door closes automatically, if people are slow to move or accidentally place their hands in the gap between the doors, they may be pinched by the rapidly closing door. This pinching phenomenon may cause severe pain to the person, and in severe cases, even cause injuries such as finger fractures. This accident is particularly prone to occur when people are rushing to enter and exit the car in a crowded environment, causing great inconvenience and safety hazards to people's work and life. Utility Model Content
[0004] The purpose of the utility model is to solve the disadvantage in the prior art that the car door of the elevator is easy to pinch the hands, and to propose an elevator door anti-pinch device.
[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: an anti-pinch device for elevator doors, comprising a door body, a bottom plate provided on one side of the door body, a plurality of mounting screws provided on the surface of the bottom plate, the bottom plate being mounted on the door body by the mounting screws, a touch plate provided on one side of the bottom plate, a hinge body provided between the bottom plate and the touch plate, the bottom plate and the touch plate being connected together by the hinge body, a return spring fixedly connected to the surface of the bottom plate, the other end of the return spring being fixedly connected to the surface of the touch plate, a magnetic block fixedly connected to the inner wall of the touch plate, a magnetic control switch fixedly connected to the surface of the bottom plate, a cover plate provided on one side of the bottom plate, the cover plate being L-shaped, a plurality of mounting screws provided on the surface of the cover plate, the cover plate being mounted on the surface of the bottom plate by the mounting screws.
[0006] Preferably, one side surface of the bottom plate and the door body is provided with a wire outlet hole, and there are two wire outlet holes. Through the above components, the wire outlet holes facilitate the passage of the wires for connection.
[0007] Preferably, an LED light is fixedly connected to the inner wall of one side of the touch panel, and there are multiple LED lights. Through the above components, the LED lights in the touch panel are convenient for warning.
[0008] Preferably, there are two return springs, and the two return springs are arranged in an arc shape.
[0009] Preferably, there are two magnetic blocks in the touch panel and two magnetic control switches in the bottom plate.
[0010] Preferably, it further comprises an elevator control system, wherein the elevator control system is connected in series with the magnetic control switch.
[0011] Compared with the prior art, the advantages and positive effects of the present invention are:
[0012] 1. In the utility model, through this solution, when the door body is closing, when the door body encounters an obstacle or a hand, the obstacle and the hand will contact the touch panel, and the touch panel will rotate through the hinge body, and then the touch panel will squeeze the return spring, and the return spring will be deformed under force. When the touch panel rotates to a certain angle, the touch panel will drive the magnetic block close to the magnetic control switch. When the magnetic block reaches the specified position, the magnetic control switch is triggered and sends a signal to the elevator control system. The elevator control system thereby controls the door body to open, which can effectively reduce the occurrence of people being pinched or items being damaged. Whether it is the passengers' hands, body parts, or carry-on items, they can all be effectively protected, greatly reducing the risk of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the anti-hand pinching device for elevator doors proposed in the utility model;
[0014] Figure 2 The utility model proposes an anti-pinch device for elevator doors Figure 1 Schematic diagram of the structure at A in the middle;
[0015] Figure 3 This is a schematic diagram of the top view of the anti-hand pinching device for elevator doors proposed in the utility model;
[0016] Figure 4 This is a schematic diagram of a partial explosion structure of the anti-hand pinching device for elevator doors proposed in the utility model;
[0017] Figure 5 The present invention provides an electrical schematic diagram of an anti-hand pinching device for elevator doors.
[0018] Legend:
[0019] 1. Door body; 2. Bottom plate; 3. Touch panel; 4. Hinge body; 5. Magnet; 6. Magnetic switch; 7. Reset spring; 8. Cover plate; 9. Mounting screw 1; 10. Mounting screw 2; 11. LED light; 12. Wire outlet hole; 13. Elevator control system. DETAILED DESCRIPTION
[0020] See also Figure 1-Figure 5 The utility model provides a technical solution: an anti-pinch device for elevator doors, comprising a door body 1, a bottom plate 2 is provided on one side of the door body 1, a plurality of mounting screws 9 are provided on the surface of the bottom plate 2, the bottom plate 2 is mounted on the door body 1 by means of the mounting screws 9, a touch plate 3 is provided on one side of the bottom plate 2, a hinge body 4 is provided between the bottom plate 2 and the touch plate 3, the bottom plate 2 and the touch plate 3 are connected together by the hinge body 4, a return spring 7 is fixedly connected to the surface of the bottom plate 2, the other end of the return spring 7 is fixedly connected to the surface of the touch plate 3, a magnetic block 5 is fixedly connected to the inner wall of the touch plate 3, a magnetic control switch 6 is fixedly connected to the surface of the bottom plate 2, a cover plate 8 is provided on one side of the bottom plate 2, the cover plate 8 is L-shaped, a plurality of mounting screws 10 are provided on the surface of the cover plate 8, and the cover plate 8 is mounted on the surface of the bottom plate 2 by means of the mounting screws 10.
[0021] In this embodiment: when the door body 1 is closing, when the door body 1 encounters an obstacle or a hand, the obstacle and the hand will contact the touch panel 3, and the touch panel 3 will rotate through the hinge body 4, and then the touch panel 3 will squeeze the reset spring 7, and the reset spring 7 will be deformed under the force. When the touch panel 3 rotates to a certain angle, the touch panel 3 will drive the magnet 5 to approach the magnetic control switch 6. When the magnet 5 reaches the specified position, the magnetic control switch 6 is triggered and sends a signal to the elevator control system 13. The elevator control system 13 thereby controls the door body 1 to open, which can effectively reduce the occurrence of people being pinched or objects being damaged.
[0022] Specifically, one side surface of the bottom plate 2 and the door body 1 are both provided with wire outlet holes 12 , and there are two wire outlet holes 12 .
[0023] In this embodiment, the wire outlet hole 12 facilitates the wires to pass through for connection.
[0024] Specifically, an LED lamp 11 is fixedly connected to the inner wall of one side of the touch panel 3 , and there are multiple LED lamps 11 .
[0025] In this embodiment, the LED light 11 in the touch panel 3 is used for warning.
[0026] Specifically, there are two return springs 7 , and the two return springs 7 are arranged in an arc shape.
[0027] Specifically, there are two magnetic blocks 5 in the touch panel 3 and two magnetic control switches 6 in the bottom panel 2 .
[0028] Specifically, it also includes an elevator control system 13, which is connected in series with the magnetic control switch 6.
[0029] Working principle: When the door body 1 in the elevator car is in operation, when the door body 1 is closing, when the door body 1 encounters an obstacle or a hand, the obstacle and the hand will contact the touch panel 3, thereby applying a certain force to the touch panel 3, and the touch panel 3 rotates through the hinge body 4, and then the touch panel 3 squeezes the return spring 7, and the return spring 7 is deformed under the force. When the touch panel 3 rotates to a certain angle, the touch panel 3 will drive the magnet 5 close to the magnetic control switch 6. When the magnet 5 reaches the specified position, the magnetic control switch 6 is triggered, and the magnetic control switch 6 sends a signal to the elevator control system 13. The elevator control system 13 controls the door body 1 to open, which can effectively reduce the occurrence of people being pinched or items being damaged. Whether it is the passengers' hands, body parts, or carry-on items, they can be effectively protected, greatly reducing the risk of safety accidents.
Claims
1. An anti-pinch device for elevator doors, comprising a door body (1), characterized in that: A bottom plate (2) is provided on one side of the door body (1), a plurality of mounting screws (9) are provided on the surface of the bottom plate (2), and the bottom plate (2) is mounted on the door body (1) by means of the mounting screws (9), a touch plate (3) is provided on one side of the bottom plate (2), a hinge body (4) is provided between the bottom plate (2) and the touch plate (3), and the bottom plate (2) and the touch plate (3) are connected together by means of the hinge body (4), and a reset spring ( 7), the other end of the reset spring (7) is fixedly connected to the surface of the touch plate (3), the inner wall of the touch plate (3) is fixedly connected to a magnetic block (5), the surface of the base plate (2) is fixedly connected to a magnetic control switch (6), a cover plate (8) is provided on one side of the base plate (2), the cover plate (8) is provided in an L-shaped manner, a plurality of mounting screws (10) are provided on the surface of the cover plate (8), and the cover plate (8) is mounted on the surface of the base plate (2) by means of the mounting screws (10).
2. The elevator door anti-pinch device according to claim 1, characterized in that: One side surface of the bottom plate (2) and the door body (1) is provided with a wire outlet hole (12), and there are two wire outlet holes (12).
3. The elevator door anti-pinch device according to claim 1, characterized in that: An LED lamp (11) is fixedly connected to an inner wall of one side of the touch panel (3), and there are a plurality of LED lamps (11).
4. The elevator door anti-pinch device according to claim 1, characterized in that: There are two return springs (7), and the two return springs (7) are arranged in an arc shape.
5. The elevator door anti-pinch device according to claim 1, characterized in that: There are two magnetic blocks (5) in the touch panel (3), and two magnetic control switches (6) in the bottom panel (2).
6. The elevator door anti-pinch device according to claim 1, characterized in that: It also includes an elevator control system (13), which is connected in series with the magnetic control switch (6).