Door pushing prevention system in elevator operation
By designing an anti-pick door system in the elevator, using the door knife to clamp the hall door ball and detect the pressure sensor, the safety hazards caused by the door strip during the elevator operation are solved, and the safe and automatic stop of the elevator is achieved to protect the safety of the door and passengers.
Patent Information
- Application Number
- CN202422575357.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-10-23
AI Technical Summary
The situation where someone lifts the door during the elevator operation will lead to safety hazards of the elevator. In the minority, the sedan door will be damaged, and in the worst case, the passenger will be injured.
An elevator anti-tripping door system is designed, including the first hall door, the second hall door, the hall door ball, the car door, the car door knife, the door lock hook and the pressure sensor. The door lock hook is opened by clamping the hall door ball, and the pressure of the pressure sensor is detected when the elevator is running, automatically disconnecting the electrical safety circuit or stopping the elevator urgently.
It effectively prevents the elevator from hitting the door or hall door when the door is removed, protecting passenger safety, reducing elevator failures, and preventing personnel from being injured.
Smart Images
Figure CN223163015U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevator safety, and in particular to a door-picking prevention system during elevator operation. Background Art
[0002] During normal elevator operation, it's common for people to pry at the elevator door. This has been reported in numerous news reports and videos circulating within the industry. This unsafe behavior can pose a safety hazard to the elevator, potentially damaging or knocking the elevator door off. In more serious cases, passengers inside the elevator can be seriously injured by the door. Utility Model Content
[0003] The purpose of the utility model is to avoid property loss and life danger caused by someone prying at the door during elevator operation, and to provide an anti-door-prying system during elevator operation.
[0004] The technical solution of the utility model is as follows:
[0005] The elevator door lock of claim 1, wherein the first and second hall doors are arranged opposite to each other, the hall door ball is arranged on the inner side of the second hall door, the first and second car doors are arranged opposite to each other on the front side of the car and correspond to the first and second hall doors respectively, the first and second car door blades are relatively arranged on the outer side of the second car door and correspond to the hall door ball, the car door lock is arranged on the outer side of the first car door, the car door lock is provided with a door lock inner hole, the car door lock hook is rotatably arranged on one side of the first car door blade, and its lock hook end is engaged with the door lock inner hole, when the elevator door opens normally and automatically, the hall door lock hook is opened by clamping the hall door ball by the first and second car door blades, and the car door lock hook is simultaneously rotated upward to open, if the car door lock hook or the hall door lock hook is unhooked during elevator operation, the electrical system safety circuit is automatically disconnected.
[0006] Furthermore, after the car door lock hook is opened, the engagement position of the lock hook end of the car door lock hook is 10 mm away from the edge of the door lock inner hole.
[0007] Furthermore, a pressure sensor is provided on the edge of the inner hole of the door lock of the car door lock. The pressure sensor is connected to a control device, and the control device is communicatively connected to the elevator system.
[0008] Furthermore, during normal operation of the elevator, when the control device detects that the pressure sensor is subjected to a pressure greater than 50N, it notifies the elevator system to stop operation urgently.
[0009] Furthermore, the control device is installed on the roof of the car.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: When the elevator normally opens automatically, the first car door knife and the second car door knife clamp the landing door ball to open the landing door lock hook, and at the same time rotate upward to open the car door lock hook; when the elevator is running, the position of prying the door is just in the door area position. If the car door lock hook or the landing door lock hook is disengaged, the electrical system safety circuit will automatically disconnect, and the elevator will stop urgently. The elevator stops before running to the next floor, causing an elevator fault, and will not damage the car door or the landing door, or the car door will not damage and hit people; when the elevator is running, the position of prying the door is in a non-door area, the landing door ball does not enter between the first car door knife and the second car door, the car door lock hook is not opened and reaches the edge of the inner hole of the car door lock, and the electrical safety circuit is not disconnected. At this time, the pressure sensor at the edge of the inner hole of the door lock will receive a certain force. When the control device on the car top detects that the pressure received by the pressure sensor is greater than 50N, the control device will notify the elevator system to stop running urgently, and the elevator system will immediately stop urgently, stop before the next floor or make the car door knife and the landing door ball contact with a smaller speed kinetic energy. Due to the smaller kinetic energy, the car door will not be damaged or damaged and hit people. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0012] Figure 1 It is a schematic diagram of the inner sides of the first landing door and the second landing door of the present utility model;
[0013] Figure 2 It is a schematic diagram of the outer sides of the first car door and the second car door of the present utility model;
[0014] Figure 3 It is a schematic diagram when the landing door lock hook and the car door lock hook of the present utility model are opened;
[0015] Figure 4 It is a schematic diagram when the position of prying the door is in a non-door area and is pried open by 10 mm during the operation of the elevator of the present utility model;
[0016] Figure 5 It is a schematic diagram of the normal meshing position of the hook end of the car door lock hook of the present utility model;
[0017] Figure 6 It is a circuit block diagram of the pressure sensor of the present utility model;
[0018] Figure 7 It is a schematic diagram of the meshing position of the hook end of the car door lock hook when prying the door of the present utility model. Detailed implementation mode
[0019] In order to make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0020] In order to illustrate the technical solution described in the present utility model, the following will be described through specific embodiments.
[0021] Embodiment
[0022] Please refer to Figure 1 , Figure 2 , this embodiment provides an anti-prying door system during elevator operation, including a first landing door 1, a second landing door 2, a landing door ball 3, a car, a first car door 4, a second car door 5, a first car door knife 6, a second car door knife 7, a car door lock hook 8 and a car door lock 9. Among them, the first landing door 1 and the second landing door 2 are arranged opposite to each other, and the landing door ball 3 is arranged inside the second landing door 2; the first car door 4 and the second car door 5 are arranged opposite to each other on the front side of the car and correspond to the first landing door 1 and the second landing door 2 respectively. The first car door knife 6 and the second car door knife 7 are relatively movably arranged outside the second car door 5 and correspond to the landing door ball 3. The car door lock 9 is arranged outside the first car door 4. The car door lock 9 is provided with a lock inner hole 91. The car door lock hook 8 is rotatably arranged on one side of the first car door knife 6, and its hook end 81 meshes with the lock inner hole 91.
[0023] When the elevator is normal and the car stops at the landing area position of a certain floor, the landing door ball 3 is clamped between the first car door knife 6 and the second car door knife 7. When the elevator automatically opens the door, as Figure 3 shown, the first car door knife 6 and the second car door knife 7 clamp the landing door ball 3 to open the landing door lock hook, and at the same time rotate upward to open the car door lock hook 8. At this time, the elevator can open the door. The meshing position of the hook end 81 of the car door lock hook 8 is 10 mm away from the edge of the lock inner hole 91.
[0024] When the landing door ball 3 enters the first car door knife 6 and the second car door knife 7, it belongs to the elevator entering the landing area. During landing area self-rescue, due to the fact that the meshing position of the hook end 81 of the car door lock hook 8 is 10 mm away from the edge of the lock inner hole 91, the car door can be pried open by 10 mm. Through this gap, a hand can be inserted to continue prying the door, and the prying force is not greater than 150 N. The first car door knife 6 and the second car door knife 7 on the second car door 5 clamp the landing door ball 3 to open the landing door lock hook, and at the same time open the car door lock hook 8, and both the elevator car door and the landing door are opened.
[0025] There are two situations of prying the door during the elevator operation:
[0026] First, the position where the door is pried open is exactly at the door area position. The car door lock hook 8 or the landing door lock hook is disengaged, and the electrical system safety circuit is automatically disconnected, and the elevator stops emergently. The elevator stops before running to the next floor, causing an elevator failure. It will not damage the car door or the landing door, or the car door will not hit people when damaged.
[0027] Second, as Figure 4 shown, the position where the door is pried open is not in the door area. The landing door ball 3 does not enter the door knife, and the car door is pried open with a 10-mm door gap. The electrical safety circuit is not disconnected, and the door-closed-in-place signal is not lost. The elevator continues to run. The meshing position of the hook end 81 of the car door lock hook 8 reaches the edge of the inner hole 91 of the car door lock 9, and a certain force is applied to the edge position. Due to the 10-mm door gap pried open, plus the error caused by the suspension and sway of the car movement through the steel wire rope, it is very easy to have the situation where the car door knife hits the landing door ball 3, and the impact has a high speed and large kinetic energy.
[0028] As Figure 5 、 Figure 6 shown, in this embodiment, a pressure sensor 10 is provided at the edge of the inner hole 91 of the car door lock 9, which is connected to the control device installed on the car top. The control device is communicatively connected to the elevator system. Figure 5 is the normal meshing position of the hook end 81 of the car door lock hook. Figure 7 is the meshing position of the hook end 81 of the car door lock hook when the door is pried open.
[0029] During the normal operation of the elevator, when the control device detects that the pressure received by the pressure sensor 10 is greater than 50 N, it notifies the elevator system to stop running emergently. The elevator system immediately stops emergently, stops before the next floor, or makes the car door knife and the landing door ball 3 contact with a smaller speed and kinetic energy. Due to the smaller kinetic energy, the car door will not be damaged or hit people when damaged.
[0030] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. An anti-prying door system during elevator operation, characterized in that: It includes a first landing door, a second landing door, a landing door ball, a car, a first car door, a second car door, a first car door knife, a second car door knife, a car door lock hook and a car door lock. The first landing door and the second landing door are arranged opposite to each other. The landing door ball is arranged inside the second landing door. The first car door and the second car door are arranged opposite to each other on the front side of the car and respectively correspond to the first landing door and the second landing door. The first car door knife and the second car door knife are movably arranged opposite to each other on the outside of the second car door and correspond to the landing door ball. The car door lock is arranged on the outside of the first car door. The car door lock is provided with a lock inner hole. The car door lock hook is rotatably arranged on one side of the first car door knife, and its hook end meshes with the lock inner hole. When the elevator normally and automatically opens the door, the hall door lock hook is opened by clamping the landing door ball with the first car door knife and the second car door knife, and at the same time, the car door lock hook is rotated upward to be opened. If the car door lock hook or the hall door lock hook is disengaged during the operation of the elevator, the safety circuit of the electrical system will be automatically disconnected.
2. The anti-prying door system during elevator operation according to claim 1, wherein: After the car door lock hook is opened, the meshing position of the hook end of the car door lock hook is 10 mm away from the edge of the lock inner hole of the car door lock.
3. The anti-opening door system during elevator operation according to claim 2, characterized in that: A pressure sensor is arranged on the edge of the lock inner hole of the car door lock. The pressure sensor is connected to a control device, and the control device is communicatively connected to the elevator system.
4. The anti-opening door system during elevator operation according to claim 3, wherein: During the normal operation of the elevator, when the control device detects that the pressure received by the pressure sensor is greater than 50 N, it notifies the elevator system to stop running emergently.
5. The anti-prying door system during elevator operation according to claim 3, characterized in that: The control device is installed on the car top of the car.