Elevator door plate structure with protection function

Abstract

According to the elevator door plate structure with the protection function, the purpose of shielding and protecting gaps of an elevator shaft through a protection baffle is achieved, an electromagnetic plate is activated and magnetized to repel the protection baffle, the protection baffle slides out of a movable groove to be clamped with a shallow clamping groove, and therefore the whole elevator car can be supported in an auxiliary mode; meanwhile, a gap can be shielded, when closing of the elevator car door plate and the elevator protection door plate is blocked, a protection air cushion is pressed, air is squeezed into a piston groove from a connecting hose, a protection cutting piece is pushed to move downwards, and a protection baffle and an electromagnetic plate are separated, so that the induction switch can be stopped from continuing to be closed, and the elevator ascends and descends; and meanwhile, the protective baffle can slide out for protection, and when the elevator falls, the sliding-out protective baffle can play a role in limiting and buffering the elevator car, so that the elevator is effectively protected, and the safety of the elevator is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator door panels, and more particularly to an elevator door panel structure with a protective function. Background Art

[0002] Elevator door panels are a very important component of the elevator system. They are mainly used to isolate the space between the elevator car and the elevator shaft to ensure the safety of passengers. Usually, elevator door panels are made of metal materials (such as steel, aluminum alloy, etc.), and the surface can be sprayed, painted or stainless steel treated to improve durability and aesthetics. The structural design of the door panel must not only meet the strength and safety requirements, but also take into account the aesthetics and functionality of the elevator. For example, modern elevator door panels mostly use an automatic switching system and are equipped with an electric drive device. They can be automatically opened when a passenger calls the elevator, and have a slow and smooth movement when closing to avoid sudden impacts that cause discomfort to passengers.

[0003] The design of elevator door panels also needs to take into account the door opening method. Common door opening methods include swing doors, folding doors, sliding doors, etc. Different types of elevator door panels are suitable for different installation environments. Swing doors are usually used in residential and low-rise buildings, while folding doors or sliding doors are more common in high-rise buildings, especially when space is limited. Sensors are also installed in elevator door panels to detect whether there are obstacles to prevent the door from causing harm to people or objects when closing. Through the intelligent door panel control system, the elevator door panel not only improves the convenience of operation, but also enhances safety.

[0004] The design of existing elevator door panels may not take into account the risk of door panels pinching passengers or objects, especially traditional sliding doors and folding doors, which may cause pinching injuries to passengers. At the same time, after the elevator car door panel and the floor elevator door panel are opened, there is a large gap between the elevator car and the floor elevator door. Passengers often drop their personal belongings into the gap, which may affect the operation of the elevator and bring safety hazards, or small animals and children may get their limbs stuck in the gap, which are extremely dangerous situations. At the same time, current elevator door panels are usually equipped with sensors to prevent people or objects from being pinched when the door is closed. There is often insufficient sensitivity or failure of the sensor, which may cause the elevator door to remain closed when there is an object blocking it, resulting in a pinching accident. There are also passengers holding ropes in their hands. When the passengers have not completely taken the rope into the elevator, the sensor fails to detect the elevator operation after the elevator door panel is closed, causing immeasurable safety accidents.

[0005] Therefore, in view of the above technical problems, it is necessary to provide an elevator door panel structure with a protective function. Summary of the invention

[0006] The object of the present invention is to provide an elevator door panel structure with a protective function to solve the above-mentioned problem.

[0007] In order to achieve the above purpose, the technical solution provided by an embodiment of the present invention is as follows:

[0008] An elevator door panel structure with a protective function comprises an elevator car, an elevator door frame, a pair of protective air cushions, a protective baffle and a protective cut piece, wherein the lower end of the elevator car is fixedly connected to a car bottom plate, a pair of elevator car door panels are installed on the inner wall of the front end of the elevator car, and the pair of elevator car door panels are both slidably connected to the upper end of the car bottom plate, the elevator door frame is arranged at the front end of the elevator car, a protective threshold is fixedly connected to the lower end of the elevator door frame, a pair of elevator protective door panels are installed on the inner end of the elevator door frame, and a pair of elevator protective door panels are slidably connected to the upper end of the protective threshold, and a pair of the protective The air cushions are respectively fixedly connected to one end of a pair of elevator protective door panels close to each other, a movable groove is provided at one end of the protective threshold close to the car bottom plate, the protective baffle is slidably connected in the movable groove, a shallow groove matching the protective baffle is provided at one end of the car bottom plate close to the protective threshold, an electromagnetic plate is fixedly connected to the inner end of the movable groove, a vertical groove is provided in the middle of the protective threshold, and the vertical groove is connected to the movable groove, the protective cutting piece is slidably connected in the vertical groove, a piston groove is provided on the inner wall of the vertical groove, and a connecting hose is fixedly connected between the protective air cushion and the piston groove.

[0009] As a further improvement of the present invention, the protective baffle includes a long sliding plate, which is slidably connected in a movable groove, and a magnetic strip is fixedly connected to one end of the sliding plate close to the electromagnetic plate, and a bevel is provided on the upper end of the magnetic strip, and an induction switch is provided on the end close to each other of the magnetic strip and the electromagnetic plate.

[0010] As a further improvement of the present invention, the protective cutting piece includes a vertical base plate, which is slidably connected in a vertical groove, a magnetic isolation plate is fixedly connected to the lower end of the vertical base plate, a piston plate is fixedly connected to the upper end of the vertical base plate, and the piston plate is slidably connected in the piston groove, a return spring is provided in the piston groove, and the return spring is wound around the outer end of the vertical base plate.

[0011] As a further improvement of the present invention, the protective cutting piece also includes a triangular cutting plate, which is fixedly connected to the lower end of the magnetic isolation plate, and the lower inner wall of the piston groove is provided with a receiving groove matching the triangular cutting plate.

[0012] As a further improvement of the present invention, an adaption groove is provided at the lower end of the elevator protective door panel, and the connecting hose is arranged in the adaption groove.

[0013] As a further improvement of the present invention, a pair of limit grooves are opened on the inner wall of the movable groove, a limit push block is slidably connected in the limit groove, and the limit push block is fixedly connected to the protective baffle, and a compression spring is arranged in the limit groove.

[0014] As a further improvement of the present invention, an infrared sensor is fixedly connected to the inner wall of the elevator door frame.

[0015] As a further improvement of the present invention, a pair of limiting guide rails are installed between the upper and lower ends of the elevator protective door panel and the elevator door frame and the protective threshold, and between the upper and lower ends of the elevator car door panel and the elevator car and the car bottom plate.

[0016] As a further improvement of the present invention, guide rail grooves are provided on the floor plate and the upper end of the protective threshold, and the limiting guide rails are located in the guide rail grooves, and a pair of dustproof rubber strips are fixedly connected to the inner walls of the guide rail grooves. A corresponding groove is also provided on the upper end of the protective threshold, and the connecting hose is located in the corresponding groove, and a pair of dustproof wool strips are fixedly connected to the inner walls of the corresponding grooves.

[0017] As a further improvement of the present invention, an anti-pinch pad is fixedly connected to one end of a pair of elevator car door panels close to each other.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] The present invention aims to shield and protect the gap in the elevator shaft by using a protective baffle. The electromagnetic plate is activated and magnetized to repel the protective baffle, so that the protective baffle slides out of the movable groove and engages with the shallow groove. This not only provides auxiliary support for the entire elevator car, but also shields the gap to prevent passengers from dropping their belongings into the elevator shaft, and prevents children or small animals from getting their limbs stuck in the gap. When the elevator car door panel and the elevator protective door panel are blocked from closing, the protective air cushion is pressurized to squeeze the gas from the connecting hose into the piston groove and push the protective cutting piece downward. The partition between the protective baffle and the electromagnetic plate can not only block the induction switch from stopping further closing and the lifting and lowering of the elevator, but also enable the protective baffle to slide out for protection. When the elevator falls, the sliding protective baffle can play a limiting buffering role for the elevator car, thereby effectively protecting the elevator and greatly improving the safety of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a side cross-sectional structural schematic diagram of the present invention;

[0022] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0023] Figure 4 It is a schematic diagram of the front cross-sectional structure of the elevator door frame of the present invention;

[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of the protective threshold part of the present invention from a top view;

[0025] Figure 6 For the present invention Figure 1 Enlarged structural diagram at B in the middle.

[0026] Description of the numbers in the figure:

[0027] 1. Elevator car; 2. Car bottom plate; 3. Elevator car door panel; 4. Elevator door frame; 5. Protective threshold; 6. Elevator protective door panel; 7. Protective air cushion; 8. Protective baffle; 81. Sliding long board; 82. Magnetic strip board; 9. Electromagnetic board; 10. Protective cutting piece; 101. Vertical base plate; 102. Magnetic isolation plate; 103. Piston plate; 104. Reset spring; 105. Triangular cutting plate; 11. Connecting hose; 12. Limit push block; 13. Compression spring; 14. Infrared sensor; 15. Limit guide rail; 16. Dust-proof rubber strip; 17. Dust-proof wool strip; 18. Anti-pinch pad. DETAILED DESCRIPTION

[0028] An implementation of the present application is described in detail below with reference to the accompanying drawings.

[0029] The first implementation method:

[0030] See also Figure 1-6 , an elevator door panel structure with a protective function, comprising an elevator car 1, an elevator door frame 4, a pair of protective air cushions 7, a protective baffle 8 and a protective cut piece 10, the lower end of the elevator car 1 is fixedly connected with a car bottom plate 2, a pair of elevator car door panels 3 are installed on the inner wall of the front end of the elevator car 1, and the pair of elevator car door panels 3 are slidably connected to the upper end of the car bottom plate 2, the elevator door frame 4 is arranged at the front end of the elevator car 1, the lower end of the elevator door frame 4 is fixedly connected with a protective threshold 5, a pair of elevator protective door panels 6 are installed at the inner end of the elevator door frame 4, and the pair of elevator protective door panels 6 are slidably connected to the upper end of the protective threshold 5, a pair of protective air cushions 7 are respectively fixedly connected to the ends of the pair of elevator protective door panels 6 close to each other, a movable groove is opened at one end of the protective threshold 5 close to the car bottom plate 2, the protective baffle 8 is slidably connected in the movable groove, and the end of the car bottom plate 2 close to the protective threshold 5 A shallow card slot matching the protective baffle 8 is provided, an electromagnetic plate 9 is fixedly connected to the inner end of the movable slot, a vertical slot is provided in the middle of the protective threshold 5, and the vertical slot is communicated with the movable slot, a protective cutting piece 10 is slidably connected in the vertical slot, a piston slot is provided on the inner wall of the vertical slot, and a connecting hose 11 is fixedly connected between the protective air cushion 7 and the piston slot. After a pair of elevator car door panels 3 and a pair of elevator protective door panels 6 are opened synchronously, the protective baffle 8 is pushed out to fit into the shallow card slot under the activation and magnetization action of the electromagnetic plate 9, which can not only provide auxiliary limit support for the entire elevator car 1, but also the protective baffle 8 blocks and protects the gap between the elevator car 1 and the elevator protective door panel 6, thereby not only preventing passengers from dropping items into the elevator shaft, but also preventing children or small animals from getting their limbs stuck in the gap, thereby greatly improving the safety of the elevator.

[0031] The protective baffle 8 includes a sliding long plate 81, which is slidably connected in the movable groove. The sliding long plate 81 is fixedly connected to a magnetic strip 82 at one end close to the electromagnetic plate 9. An oblique surface is provided on the upper end of the magnetic strip 82. The magnetic strip 82 and the electromagnetic plate 9 are both provided with an induction switch at one end close to each other. By activating the electromagnetic plate 9 to magnetize the magnetic strip 82, the magnetic attraction and repulsion of the magnetic strip 82 are controlled, so as to control the sliding out and retraction of the sliding long plate 81.

[0032] The protective cutting piece 10 includes a vertical base plate 101, which is slidably connected in the vertical groove. A magnetic isolation plate 102 is fixedly connected to the lower end of the vertical base plate 101, and a piston plate 103 is fixedly connected to the upper end of the vertical base plate 101, and the piston plate 103 is slidably connected in the piston groove. A reset spring 104 is provided in the piston groove, and the reset spring 104 is wound around the outer end of the vertical base plate 101. The protective air cushion 7 is squeezed to squeeze the gas from the connecting hose 11 into the piston groove to push the piston plate 103 to push the vertical base plate 101 and the magnetic isolation plate 102 downward, so that the magnetic isolation plate 102 is inserted between the magnetic strip 82 and the electromagnetic plate 9, and the magnetic isolation plate 102 is used to block the magnetic force between the magnetic strip 82 and the electromagnetic plate 9, and the induction switch is cut off to stop the elevator car door panel 3 and the elevator protective door panel 6 from closing, and the elevator stops lifting.

[0033] The protective cutting piece 10 also includes a triangular cutting plate 105, which is fixedly connected to the lower end of the magnetic isolation plate 102. The lower inner wall of the piston groove is provided with a receiving groove matching the triangular cutting plate 105. The triangular cutting plate 105 is pressed against the inclined surface of the magnetic strip 82 and pushed by the piston plate 103, so that the protective cutting piece 10 can be pressed down more conveniently until the piston plate 103 is stuck in the receiving groove, and the magnetic isolation plate 102 is located between the magnetic strip 82 and the electromagnetic plate 9 for blocking.

[0034] An adaptation groove is provided at the lower end of the elevator protection door panel 6, and the connecting hose 11 is arranged in the adaptation groove. A longer connecting hose 11 can be arranged through the adaptation groove, so that the length of the connecting hose 11 can be changed at will when the elevator protection door panel 6 moves, and will not affect the normal opening and closing of the elevator protection door panel 6.

[0035] A pair of limit grooves are provided on the inner wall of the movable groove, in which a limit push block 12 is slidably connected, and the limit push block 12 is fixedly connected to the protective baffle 8. A compression spring 13 is provided in the limit groove. Through the elastic force of the compression spring 13, in the event of a power outage or an emergency, the limit push block 12 can be pushed to cause the protective baffle 8 to slide out and automatically get stuck in the shallow slot. At the same time, the sliding out of the protective baffle 8 can also serve as a buffer to prevent the elevator car 1 from falling due to a fault, thereby effectively playing a role in safety protection.

[0036] An infrared sensor 14 is fixedly connected to the inner wall of the elevator door frame 4. The infrared sensor 14 can detect whether there are foreign objects between the elevator car door panel 3 and the elevator protection door panel 6 to control whether the elevator car door panel 3 and the elevator protection door panel 6 can be closed.

[0037] A pair of limit guide rails 15 are installed between the upper and lower ends of the elevator protective door panel 6 and the elevator door frame 4 and the protective threshold 5, and between the upper and lower ends of the elevator car door panel 3 and the elevator car 1 and the car bottom plate 2. The limit guide rails 15 can not only control the sliding of the elevator car door panel 3 and the elevator protective door panel 6, but also play a limit guiding role, making it smoother when opening and closing.

[0038] Guide rail grooves are provided at the upper ends of the compartment floor 2 and the protective door sill 5, and the limiting guide rail 15 is located in the guide rail groove, and a pair of dustproof rubber strips 16 are fixedly connected to the inner wall of the guide rail groove. A corresponding groove is also provided at the upper end of the protective door sill 5, and the connecting hose 11 is located in the corresponding groove, and a pair of dustproof wool strips 17 are fixedly connected to the inner wall of the corresponding groove. The dustproof rubber strips 16 can greatly reduce the foreign matter falling into the guide rail groove to prevent the foreign matter from affecting the normal operation of the limiting guide rail 15, and the dustproof wool strips 17 can also reduce the foreign matter falling into the corresponding groove to affect the accommodation of the connecting hose 11.

[0039] A pair of elevator car door panels 3 are fixedly connected with anti-pinch pads 18 at one end close to each other. The anti-pinch pads 18 can effectively prevent the risk of passengers being pinched, and the anti-pinch pads 18 can play a cushioning and protective role.

[0040] Working principle:

[0041] When the elevator car door panel 3 and the elevator protection door panel 6 are opened synchronously, the electromagnetic plate 9 is activated to magnetize the magnetic strip 82 to repel the sliding long plate 81, so that the sliding long plate 81 slides out of the movable groove and engages with the shallow groove, and the sliding long plate 81 is used to block and protect the gap between the car bottom plate 2 and the protection threshold 5 to prevent passengers' personal belongings from falling into the elevator shaft, and also to prevent children or small animals from getting their limbs stuck in the gap. When the elevator car door panel 3 and the elevator protection door panel 6 are closed synchronously, the electromagnetic plate 9 also attracts the magnetic strip 82 to retract the protection baffle 8 as a whole into the movable groove; when a passenger or an object is sandwiched between a pair of elevator car door panels 3 and a pair of elevator protection door panels 6, when the protective air cushion 7 is squeezed, the gas inside it is squeezed from the connecting hose 11 into the piston groove and pushes the piston plate 103, so that the vertical base plate 101, the magnetic isolation plate 102 and the three The angle cutting plate 105 is synchronously moved down and inserted between the magnetic strip plate 82 and the electromagnetic plate 9, blocking the magnetic attraction between the magnetic strip plate 82 and the electromagnetic plate 9 and cutting off the induction switch, stopping the elevator car door panel 3 and the elevator protective door panel 6 from continuing to close and opening them conversely, and the elevator also stops rising and falling, and the protective baffle 8 pushes the limit push block 12 under the elastic force of the compression spring 13 to make it slide out and re-engage with the shallow slot until the protective air cushion 7 is squeezed by no foreign matter, and then the protective cutting piece 10 is pulled out of the magnetic strip plate 82 and the electromagnetic plate 9 as a whole under the rebound force of the reset spring 104, and the electromagnetic plate 9 absorbs the protective baffle 8 back into the movable slot; if there is a sudden power outage or the elevator falls, the protective baffle 8 can also slide out of the movable slot and be in a convex state, and the protective baffle 8 is used to limit the fall of the elevator, thereby playing an efficient protective role.

[0042] It can be seen from the above technical solutions that the present invention has the following beneficial effects:

[0043] The present invention uses the protective baffle 8 to shield and protect the gap in the elevator shaft. The electromagnetic plate 9 is activated to magnetize and repel the protective baffle 8, so that the protective baffle 8 slides out of the movable groove and engages with the shallow groove, which can not only provide auxiliary support for the entire elevator car 1, but also block the gap to prevent passengers from dropping their belongings into the elevator shaft, and prevent children or small animals from getting their limbs stuck in the gap. When the elevator car door panel 3 and the elevator protective door panel 6 are blocked from closing, the protective air cushion 7 is pressurized to squeeze the gas from the connecting hose 11 into the piston groove and push the protective cutting piece 10 downward, and the partition between the protective baffle 8 and the electromagnetic plate 9 can not only block the induction switch from stopping further closing and the lifting and lowering of the elevator, but also enable the protective baffle 8 to slide out for protection. When the elevator falls, the sliding protective baffle 8 can play a limiting buffering role for the elevator car 1, thereby effectively protecting the elevator and greatly improving the safety of the elevator.

[0044] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0045] In addition, it should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that those skilled in the art can understand.

Claims

1. An elevator door panel structure with a protective function, characterized in that: include: An elevator car (1), wherein the lower end of the elevator car (1) is fixedly connected to a car bottom plate (2), a pair of elevator car door panels (3) are installed on the inner wall of the front end of the elevator car (1), and the pair of elevator car door panels (3) are both slidably connected to the upper end of the car bottom plate (2); An elevator door frame (4), the elevator door frame (4) being arranged at the front end of the elevator car (1), the lower end of the elevator door frame (4) being fixedly connected to a protective threshold (5), the inner end of the elevator door frame (4) being provided with a pair of elevator protective door panels (6), and the pair of elevator protective door panels (6) being slidably connected to the upper end of the protective threshold (5); A protective air cushion (7), wherein the number of the protective air cushions (7) is a pair, and the pair of protective air cushions (7) are respectively fixedly connected to one end of a pair of elevator protective door panels (6) close to each other; A protective baffle (8), wherein a movable groove is provided at one end of the protective threshold (5) close to the compartment bottom plate (2), and the protective baffle (8) is slidably connected in the movable groove; a shallow groove matching the protective baffle (8) is provided at one end of the compartment bottom plate (2) close to the protective threshold (5), and an electromagnetic plate (9) is fixedly connected to the inner end of the movable groove; A protective cutting piece (10), a vertical groove is provided in the middle of the protective threshold (5), and the vertical groove is connected to the movable groove, the protective cutting piece (10) is slidably connected in the vertical groove, a piston groove is provided on the inner wall of the vertical groove, and a connecting hose (11) is fixedly connected between the protective air cushion (7) and the piston groove.

2. The elevator door panel structure with protective function according to claim 1, characterized in that: The protective baffle (8) comprises a sliding long plate (81), the sliding long plate (81) is slidably connected in the movable groove, the sliding long plate (81) is fixedly connected to a magnetic strip plate (82) at one end close to the electromagnetic plate (9), the upper end of the magnetic strip plate (82) is provided with a chamfered surface, and the magnetic strip plate (82) and the electromagnetic plate (9) are both provided with an induction switch at one end close to each other.

3. The elevator door panel structure with protective function according to claim 1, characterized in that: The protective cutting piece (10) comprises a vertical base plate (101), the vertical base plate (101) is slidably connected in a vertical groove, a magnetic isolation plate (102) is fixedly connected to the lower end of the vertical base plate (101), a piston plate (103) is fixedly connected to the upper end of the vertical base plate (101), and the piston plate (103) is slidably connected in a piston groove, a return spring (104) is provided in the piston groove, and the return spring (104) is wound around the outer end of the vertical base plate (101).

4. The elevator door panel structure with protective function according to claim 3, characterized in that: The protective cutting piece (10) further comprises a triangular cutting plate (105), wherein the triangular cutting plate (105) is fixedly connected to the lower end of the magnetic isolation plate (102), and a receiving groove matching the triangular cutting plate (105) is provided on the lower inner wall of the piston groove.

5. The elevator door panel structure with protective function according to claim 1, characterized in that: An adaption groove is provided at the lower end of the elevator protective door plate (6), and the connecting hose (11) is arranged in the adaption groove.

6. The elevator door panel structure with protective function according to claim 1, characterized in that: A pair of limit grooves are formed on the inner wall of the movable groove, a limit push block (12) is slidably connected in the limit groove, and the limit push block (12) is fixedly connected to the protective baffle (8), and a compression spring (13) is provided in the limit groove.

7. The elevator door panel structure with protective function according to claim 1, characterized in that: An infrared sensor (14) is fixedly connected to the upper inner wall of the elevator door frame (4).

8. The elevator door panel structure with protective function according to claim 1, characterized in that: A pair of limiting guide rails (15) are installed between the upper and lower ends of the elevator protective door panel (6) and the elevator door frame (4) and the protective threshold (5), and between the upper and lower ends of the elevator car door panel (3) and the elevator car (1) and the car bottom plate (2).

9. The elevator door panel structure with protective function according to claim 1, characterized in that: The upper ends of the compartment floor (2) and the protective threshold (5) are both provided with guide rail grooves, and the limiting guide rails (15) are located in the guide rail grooves. The inner walls of the guide rail grooves are fixedly connected with a pair of dustproof rubber strips (16). The upper end of the protective threshold (5) is also provided with a corresponding groove, and the connecting hose (11) is located in the corresponding groove. The inner walls of the corresponding grooves are fixedly connected with a pair of dustproof wool strips (17).

10. The elevator door panel structure with protective function according to claim 1, characterized in that: An anti-pinch pad (18) is fixedly connected to one end of a pair of elevator car door panels (3) close to each other.

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