Anti-derailment elevator landing door

Abstract

The utility model provides an anti-derailment elevator landing door, and relates to the technical field of elevator landing door derailment prevention, the anti-derailment elevator landing door comprises a sill, a landing door, a slide block, a fixed block, a long bolt, a cavity, a movable plate, an extension plate, a positioning hole, a baffle and a limiting groove, the cavity is internally provided with a spring used for pushing the movable plate out of the cavity; a containing cavity used for containing the extension plate is formed in the inner side of the landing door, through holes matched with the positioning holes in the extension plate are formed in the upper side and the lower side of the containing cavity, an electric telescopic rod is arranged on the inner side of the landing door and located above the containing cavity, and the output end of the electric telescopic rod is used for penetrating through the moving plate and the containing cavity. By means of the fixed block, the movable plate, the extension plate, the check block, the movable groove, the containing cavity and the electric telescopic rod, the anti-collision capacity of the lower end of the landing door can be remarkably improved, a sliding block below the landing door is prevented from being disengaged from a sill, the good prevention and protection effects are achieved for preventing personnel and vehicles from rushing into an elevator shaft, and the safety degree is high.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-derailment of elevator landing doors, in particular to an anti-derailment elevator landing door. Background Art

[0002] The elevator floor door is installed in the elevator hall on each floor and is used to separate the elevator shaft from the elevator hall. The lower end of the floor door is provided with a pulley and a slider. The floor door moves back and forth on the sill to realize the opening and closing of the floor door. Since the ratio of the height to the width of the floor door is relatively large, when the floor door is subjected to a large degree of impact, such as a collision with an electric vehicle or an unintentional fall and collision by a drunk person, there is a possibility that the lower end slider of the floor door will fall out of the sill. When the slider under the floor door falls out of the sill, pedestrians can easily rush into the elevator shaft from the lower part of the floor door, which is highly dangerous to people and poses a great safety hazard. Utility Model Content

[0003] The utility model aims to provide an anti-derailment elevator landing door, aiming to solve the problems mentioned in the above-mentioned background technology.

[0004] To achieve the above object, the utility model adopts the following technical scheme: the anti-derail elevator floor door comprises a sill and two floor doors symmetrically arranged on the sill, the lower end of the floor door is provided with a slider that can slide in the sill, one side of the floor door is symmetrically provided with a fixed block, the fixed block is fixed to the ground by a long bolt, a cavity is provided inside the fixed block, a movable plate is slidably connected inside the cavity, an extension plate is provided at one end of the movable plate away from the cavity, a positioning hole is provided in the middle of the extension plate, blocks are provided at both ends of the movable plate, limiting grooves for the sliding of the blocks are symmetrically provided inside the cavity, a spring for pushing the movable plate out of the cavity is provided inside the cavity, a housing cavity for accommodating the extension plate is provided on the inner side of the floor door, through holes that cooperate with the positioning holes on the extension plate are provided on the upper and lower sides of the housing cavity, an electric telescopic rod is provided on the inner side of the floor door and located above the housing cavity, and the output end of the electric telescopic rod is used to penetrate the movable plate and the housing cavity.

[0005] Preferably, a shell is provided on the inner side of one of the floor doors, a coil spring assembly is provided inside the shell, a chain plate is wound around the outer surface of the coil spring assembly, one end of the chain plate is fixedly connected to the coil spring assembly, and a fixed plate is provided on the inner side of the other floor door, the other end of the chain plate passes through the two floor doors in sequence and is fixedly connected to the fixed plate.

[0006] Preferably, the chain plate outside the housing is always in a tensioned state.

[0007] Preferably, the extension plate is fixed to the movable plate by a bolt assembly.

[0008] Preferably, the upper surface of the fixing block is an arc-shaped surface.

[0009] The beneficial effects of the utility model are:

[0010] The device can significantly improve the anti-collision ability of the lower end of the floor door by means of the fixed block, movable plate, extension plate, stopper, movable groove, accommodating chamber and electric telescopic rod, prevent the slider under the floor door from escaping from the sill, and has a good preventive and protective effect on preventing people and vehicles from rushing into the elevator shaft, with a high degree of safety. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0012] Figure 2 It is a structural schematic diagram of another angle of a specific embodiment of the utility model.

[0013] Figure 3 It is a schematic diagram of a specific embodiment of the utility model when the floor door is opened.

[0014] Figure 4 It is a schematic diagram of the structure inside the fixed block of a specific embodiment of the utility model.

[0015] In the figure: 1. sill; 2. floor door; 3. fixing block; 4. long bolt; 5. cavity; 6. movable plate; 7. extension plate; 8. positioning hole; 9. stopper; 10. limiting groove; 11. spring; 12. accommodating cavity; 13. electric telescopic rod; 14. shell; 15. chain plate; 16. fixing plate; 17. ground; 18. wall. DETAILED DESCRIPTION

[0016] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0017] like Figure 1-4As shown, an anti-derailment elevator landing door comprises a sill 1 and two landing doors 2 symmetrically arranged on the sill 1, a slider that can slide in the sill 1 is arranged at the lower end of the landing door 2, a fixed block 3 is symmetrically arranged on one side of the landing door 2, the fixed block 3 is fixed to the ground 17 by a long bolt 4, a cavity 5 is opened inside the fixed block 3, a moving plate 6 is slidably connected inside the cavity 5, an extension plate 7 is arranged at one end of the moving plate 6 away from the cavity 5, a positioning hole 8 is opened in the middle of the extension plate 7, and stoppers are arranged at both ends of the moving plate 6 Block 9, the interior of the cavity 5 is symmetrically provided with limit grooves 10 for the sliding of the stop block 9, the interior of the cavity 5 is provided with a spring 11 for pushing the movable plate 6 to the outside of the cavity 5, the inner side of the floor door 2 is provided with a accommodating cavity 12 for accommodating the extension plate 7, and the upper and lower sides of the accommodating cavity 12 are provided with through holes that cooperate with the positioning holes 8 on the extension plate 7, and an electric telescopic rod 13 is arranged on the inner side of the floor door 2 and above the accommodating cavity 12, and the output end of the electric telescopic rod 13 is used to penetrate the movable plate 6 and the accommodating cavity 12.

[0018] The inner bottom surface of the elevator car, that is, the plane for passengers to stand on, coincides with the plane where the highest point of the fixing block 3 is located, and the height of the landing door 2 is longer than the height of the elevator door.

[0019] The fixed block 3 is welded by stainless steel plates, and the corresponding cavity 5 and the limiting groove 10 are welded by the stainless steel plates inside the fixed block 3. The stainless steel material can improve the ability of the fixed block 3 to resist deformation, and the movable plate 6 and the stopper 9 are also welded by stainless steel plates. The limiting groove 10 can prevent the stopper 9 from continuing to move toward the outside of the cavity 5, and the movable plate 6 is also difficult to escape from the cavity 5. By drilling a hole on the ground 17 and arranging a corresponding threaded sleeve in the hole, and then cooperating with the long bolt 4 and the threaded sleeve, it is convenient to stably install the fixed block 3 on the ground 17, and the ground 17 is the ground 17 of the elevator hall.

[0020] One end of the extension plate 7 away from the moving plate 6 is an arc-shaped surface. When the landing door 2 moves, the arc-shaped surface of the extension plate 7 facilitates the extrusion of the extension plate 7. The extension plate 7 pushes the moving plate 6 to compress the spring 11, so that the extension plate 7 can completely enter the cavity 5. When the accommodating cavity 12 moves to the position of the extension plate 7, the landing door 2 can no longer apply the extrusion force to the extension plate 7. Under the action of the spring 11, the extension plate 7 can be pushed into the accommodating cavity 12. At this time, the center axis of the positioning hole 8 on the extension plate 7 is aligned with the center axis of the through hole on the accommodating cavity 12. The axes coincide, and the output end of the electric telescopic rod 13 extends out and can pass through the positioning hole 8 and the through hole at the same time to connect the extension plate 7 and the accommodating cavity 12. When the floor door 2 is hit by an external force, since the extension plate 7 and the accommodating cavity 12 are penetrated by the output end of the electric telescopic rod 13, the lower end of the floor door 2 can be prevented from being severely deformed, and the lower end slider of the floor door 2 can be prevented from escaping from the sill 1, thereby ensuring the anti-collision ability of the floor door 2. At the same time, in order to reduce the friction between the floor door 2 and the extension plate 7, the material of the extension plate 7 is nylon plastic.

[0021] Furthermore, a housing 14 is provided on the inner side of one of the landing doors 2, a coil spring assembly is provided inside the housing 14, a chain plate 15 is wound on the outer surface of the coil spring assembly, one end of the chain plate 15 is fixedly connected to the coil spring assembly, a fixing plate 16 is provided on the inner side of the other landing door 2, the other end of the chain plate 15 is fixedly connected to the fixing plate 16 after passing through the two landing doors 2 in sequence, the coil spring assembly is a prior art, and will not be described in detail here, the chain plate 15 can be retracted and released by the coil spring assembly, the chain plate 15 includes a plurality of small connecting plates, and the adjacent connecting plates are connected by a pin shaft, so that the chain plate 15 can be retracted as a whole, and the housing 14 is provided with a fixed plate 16. The body 14 is used to accommodate the reeled chain plate 15. When the floor door 2 and the elevator door are both opened, since the threshold 1 of the floor door 2 is lower than the threshold 1 in the elevator door, a large gap will appear between the floor door 2 and the elevator door when the floor door 2 is opened. When small items such as mobile phones, headphones, keys, etc. fall, they are easy to enter the gap. Through the set chain plate 15, when the floor door 2 is opened, the chain plate 15 extends from the shell 14 and covers the upper part of the gap, and the upper surface of the chain plate 15 is almost in the same plane with the bottom surface of the elevator, thereby effectively preventing small items from falling from the gap between the floor door 2 and the elevator door.

[0022] Furthermore, the chain plate 15 outside the housing 14 is always in a tensioned state, and a coil spring assembly that can keep the chain plate 15 always tensioned should be selected to prevent the upper surface of the chain plate 15 from being significantly bent and affecting the anti-falling capability of small-sized items.

[0023] Furthermore, the epitaxial plate 7 is fixed to the movable plate 6 by a bolt assembly. When the epitaxial plate 7 needs to be replaced due to excessive friction after long-term use, the bolt assembly can conveniently realize the replacement and installation of the epitaxial plate 7, and also facilitate the maintenance of the epitaxial plate 7 after disassembly.

[0024] Furthermore, the upper surface of the fixed block 3 is an arc-shaped surface, and the connection between the end of the fixed block 3 away from the floor door 2 and the ground 17 is relatively smooth to prevent members from tripping and improve safety of use. At the same time, the upper surface of the fixed block 3 can be provided with corresponding friction-increasing textures to improve the anti-slip ability of the fixed block 3.

[0025] Working principle: when the floor door 2 is closed, one end of the floor door 2 squeezes the outer surface of the extension plate 7 and makes the extension plate 7 enter the cavity 5. When the accommodating cavity 12 moves to the position of the extension plate 7, under the action of the spring 11, the extension plate 7 is pushed into the accommodating cavity 12, and then the output end of the electric telescopic rod 13 extends out and connects the extension plate 7 and the accommodating cavity 12, thereby improving the anti-collision ability of the lower part of the floor door 2. When the floor door 2 is opened, the electric telescopic rod 13 retracts first, and the floor door 2 squeezes the extension plate 7 through the accommodating cavity 12, so that the extension plate 7 enters the cavity 5 again, so that the floor door 2 can be completely opened and hidden on the inner side of the wall 18.

[0026] The device can significantly improve the anti-collision ability of the lower end of the floor door 2 by arranging the fixed block 3, the movable plate 6, the extension plate 7, the stopper 9, the movable groove, the accommodating chamber 12 and the electric telescopic rod 13, prevent the slider under the floor door 2 from escaping from the sill 1, and has a good preventive and protective effect on preventing people and vehicles from rushing into the elevator shaft, and has a high degree of safety.

[0027] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, 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.

Claims

1. An anti-derailment elevator landing door, characterized in that: The invention comprises a sill (1) and two landing doors (2) symmetrically arranged on the sill (1), wherein a slider which can slide in the sill (1) is arranged at the lower end of the landing door (2), a fixed block (3) is symmetrically arranged on one side of the landing door (2), and the fixed block (3) is fixed on the ground (17) by a long bolt (4), a cavity (5) is provided inside the fixed block (3), a movable plate (6) is slidably connected inside the cavity (5), an extension plate (7) is provided at one end of the movable plate (6) away from the cavity (5), a positioning hole (8) is provided in the middle of the extension plate (7), and stoppers (9) are provided at both ends of the movable plate (6). The cavity (5) is symmetrically provided with limit grooves (10) for the block (9) to slide, the cavity (5) is provided with a spring (11) for pushing the movable plate (6) out of the cavity (5), the inner side of the floor door (2) is provided with a receiving cavity (12) for receiving the extension plate (7), the upper and lower sides of the receiving cavity (12) are provided with through holes that cooperate with the positioning holes (8) on the extension plate (7), the inner side of the floor door (2) and above the receiving cavity (12) is provided with an electric telescopic rod (13), the output end of the electric telescopic rod (13) is used to penetrate the movable plate (6) and the receiving cavity (12).

2. The anti-derailment elevator landing door according to claim 1, characterized in that: A shell (14) is provided on the inner side of one of the landing doors (2), a coil spring assembly is provided inside the shell (14), a chain plate (15) is wound around the outer surface of the coil spring assembly, one end of the chain plate (15) is fixedly connected to the coil spring assembly, and a fixing plate (16) is provided on the inner side of the other landing door (2), the other end of the chain plate (15) passes through the two landing doors (2) in sequence and is fixedly connected to the fixing plate (16).

3. The anti-derailment elevator landing door according to claim 2, characterized in that: The chain plate (15) located outside the housing (14) is always in a tensioned state.

4. The anti-derailment elevator landing door according to claim 1, characterized in that: The extension plate is fixed on the moving plate (6) by means of a bolt assembly.

5. The anti-derailment elevator landing door according to any one of claims 1 to 4, characterized in that: The upper surface of the fixing block (3) is an arc-shaped surface.

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