A protective structure for elevator landing doors

Abstract

This utility model discloses a protective structure for elevator landing doors, relating to the field of elevator safety technology. Its key technical features include an elevator wall with a landing door groove. A landing door is slidably connected to the inner cavity of the landing door groove, and a protective structure is installed on the landing door. The protective structure includes a hollow rectangular bladder fixedly installed on the landing door. The inner cavity of the hollow rectangular bladder is filled with a non-flowing liquid. A base plate is fixedly installed on the hollow rectangular bladder, and several hexagonal frames are fixedly installed on the base plate. Buffer columns fixedly installed on the hollow rectangular bladder are located within the inner cavities of the hexagonal frames. This utility model effectively absorbs and disperses impact forces and prevents landing door deformation through the protective structure. Combined with a "Do Not Collide" warning sign on the load-bearing plate to remind passengers to avoid the impact, this dual mechanism significantly reduces the risk of structural damage and maintenance costs caused by accidental impacts to the landing door. It also reduces operating noise and improves elevator safety and passenger comfort.

Description

Technical Field

[0001] This utility model relates to the field of elevator safety technology, specifically a protective structure for elevator landing doors. Background Technology

[0002] As a critical component ensuring passenger safety, elevator landing doors must be designed and manufactured in strict accordance with safety regulations. According to current standards, landing doors should be non-perforated, with a minimum clear height of 2 meters. When closed, the gaps between door panels and between the door panel and the support column, lintel, and sill must be kept to a minimum – 1 to 6 millimeters for passenger elevators and 1 to 8 millimeters for freight elevators. To prevent shearing accidents during operation, the outer surface of automatic landing doors must not have any unevenness exceeding 3 millimeters, and all edges must be chamfered in both directions. In terms of mechanical strength, landing doors equipped with locks must withstand a horizontal force test of 150 Newtons: when the force is applied to the most unfavorable point, the gaps between door panels and between the door panel and the frame must still be within 30 millimeters; simultaneously, the clear entrance width of the landing door relative to the car entrance on one side must not exceed 0.05 meters to ensure smooth entry and exit for personnel.

[0003] However, some traditionally designed elevator landing doors have significant safety hazards, as their structures often fail to provide effective cushioning and energy absorption against accidental impacts from passengers or objects. This lack of a cushioning mechanism makes the landing doors highly susceptible to irreversible deformation or even overall structural deformation upon impact. This not only directly damages the appearance and functional integrity of the landing doors themselves but also severely affects the normal operation of the elevator, causing issues such as door jamming, increased operating noise, difficulty opening and closing doors, and even elevator malfunctions and shutdowns. This increases maintenance costs and potential safety risks. Therefore, we propose a novel protective structure for elevator landing doors. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a protective structure for elevator landing doors, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective structure for an elevator landing door, comprising an elevator wall, a landing door groove provided in the elevator wall, a landing door slidably connected to the inner cavity of the landing door groove, and a protective structure provided on the landing door.

[0006] The protective structure includes a hollow rectangular bladder fixedly installed on the landing door. The inner cavity of the hollow rectangular bladder is filled with a non-flowing liquid. A base plate is fixedly installed on the hollow rectangular bladder. Several hexagonal frames are fixedly installed on the base plate. The inner cavity of each hexagonal frame is provided with a buffer column fixedly installed on the hollow rectangular bladder. A load-bearing plate is fixedly installed on each hexagonal frame. An anti-collision buffer strip is fixedly installed on one side of the landing door.

[0007] Preferably, the hollow rectangular bladder fits into the door and the base plate, and the hollow rectangular bladder is located between the door and the base plate.

[0008] Preferably, the hexagonal frame and buffer column are located between the base plate and the load-bearing plate, wherein the buffer column is made of columnar airbag.

[0009] Preferably, the anti-collision buffer strip is made of rubber strip, wherein the thickness of the anti-collision buffer strip is equal to the thickness of the door, plus the thickness of the base plate, plus the thickness of the load-bearing plate, plus the vertical height of the hexagonal frame.

[0010] Preferably, the load-bearing plate has an installation groove, and a "Do Not Collision" warning sign is fixedly installed in the inner cavity of the installation groove.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This utility model effectively absorbs and disperses accidental impact forces from passengers or goods through its protective structure. When the hollow rectangular bladder is impacted, the non-flowing liquid inside exhibits rigidity and damping characteristics, evenly distributing the impact force and preventing excessive force on a single point of the landing door. The hexagonal frame and buffer pillars further disperse and absorb impact energy, reducing damage to the landing door. The anti-collision buffer strip acts as an additional protective layer for the landing door edges, absorbing and dispersing edge impact energy, effectively protecting the landing door edges from damage, and reducing noise and vibration. This protective structure significantly improves the impact resistance of the landing door, preventing irreversible deformation or even overall structural deformation when the landing door is impacted, ensuring the structural integrity and normal function of the landing door, and reducing maintenance costs and potential safety risks.

[0013] 2. This utility model, by setting up a "Do Not Collide" warning sign, reminds passengers to avoid colliding with the landing doors. This human-centered design reduces the occurrence of accidental collisions from the source, enhances the safety of elevator use, and reflects meticulous care for passengers. Attached Figure Description

[0014] Figure 1 This is a complete structural schematic diagram of the present invention;

[0015] Figure 2 This utility model Figure 1 Another perspective structural diagram;

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the side structure.

[0018] In the picture:

[0019] 1. Elevator wall; 101. Landing door slot; 2. Landing door; 3. Protective structure; 301. Hollow rectangular bladder; 302. Non-flowing liquid; 303. Base plate; 304. Hexagonal frame; 305. Buffer column; 306. Load-bearing plate; 307. Anti-collision buffer strip; 4. Mounting slot; 5. Do not crash warning sign. Detailed Implementation

[0020] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0021] This utility model provides a technical solution:

[0022] Please see Figures 1-4 A protective structure for an elevator landing door, characterized in that it includes an elevator wall 1, an elevator wall 1 having a landing door groove 101, a landing door 2 being slidably connected to the inner cavity of the landing door groove 101, and a protective structure 3 being provided on the landing door 2.

[0023] The protective structure 3 includes a hollow rectangular bladder 301 fixedly installed on the landing door 2. The inner cavity of the hollow rectangular bladder 301 is filled with a non-flowing liquid 302. A base plate 303 is fixedly installed on the hollow rectangular bladder 301. Several hexagonal frames 304 are fixedly installed on the base plate 303. The inner cavity of the hexagonal frames 304 is provided with buffer columns 305 fixedly installed on the hollow rectangular bladder 301. A stress plate 306 is fixedly installed on the hexagonal frames 304. An anti-collision buffer strip 307 is fixedly installed on one side of the landing door 2.

[0024] When the protective structure 3 is in operation, the load-bearing plate 306 is the first to receive the impact force. The energy is dispersed and absorbed by the hexagonal frame 304 and the buffer column 305. The non-flowing liquid 302 in the hollow rectangular bladder 301 distributes the impact force evenly to prevent excessive force on a single point. The anti-collision buffer strip 307 acts as an edge protection layer to further absorb and disperse energy. The whole structure effectively protects the door 2 from deformation damage, ensuring structural integrity and normal function.

[0025] In some embodiments, the hollow rectangular bladder 301 fits with the door 2 and the base plate 303, and the hollow rectangular bladder 301 is located between the door 2 and the base plate 303.

[0026] In this embodiment, the hollow rectangular bladder 301 fits between the door 2 and the base plate 303. When in operation, after being impacted, the non-flowing liquid 302 inside it distributes the impact force evenly through the damping characteristics, effectively preventing deformation caused by excessive force on a single point of the door 2. At the same time, as a buffer base, it works together with the base plate 303 to enhance the structural stability and ensure that the door 2 maintains structural integrity and normal function when subjected to impact.

[0027] In some embodiments, the hexagonal frame 304 and the buffer column 305 are located between the base plate 303 and the load-bearing plate 306, wherein the buffer column 305 is made of a columnar airbag.

[0028] In this embodiment, the hexagonal frame 304 and the columnar airbag buffer column 305 are located between the base plate 303 and the load-bearing plate 306. During operation, after the load-bearing plate 306 is impacted, the hexagonal frame 304 disperses the impact force, and the buffer column 305 deforms to absorb energy, thereby reducing damage to the floor door 2 and enhancing its impact resistance.

[0029] In some embodiments, the anti-collision buffer strip 307 is made of rubber strip, wherein the thickness of the anti-collision buffer strip 307 is equal to the thickness of the door 2, plus the thickness of the base plate 303, plus the thickness of the load-bearing plate 306, plus the sum of the vertical height of the hexagonal frame 304.

[0030] In this embodiment, the anti-collision buffer strip 307 is made of rubber strip, and its thickness covers the sum of the heights of the floor door 2, the base plate 303, the load-bearing plate 306 and the hexagonal frame 304. During operation, it absorbs edge impact energy through significant deformation, effectively preventing damage to the edge of the floor door 2 and reducing operating noise.

[0031] Please see Figures 1-3 The load-bearing plate 306 has an installation groove 4, and a warning sign 5 is fixedly installed inside the installation groove 4.

[0032] An installation slot 4 is provided on the load-bearing plate 306 to fix a "Do Not Collide" warning sign 5. During operation, the sign is used to remind passengers to avoid the collision through a bright color and clear information, thereby reducing accidental collisions from the source, enhancing the safety of elevator use, and demonstrating meticulous care for passengers.

[0033] In practical use, the working principle of this utility model is as follows:

[0034] When a passenger or object accidentally impacts the elevator landing door, the impact force first acts directly on the load-bearing plate 306. This plate, as the direct contact surface, can quickly receive and initially disperse the impact energy. The hexagonal frame 304 fixedly installed on the load-bearing plate 306 not only enhances the stability of the structure but also effectively disperses the impact force through its unique geometry, avoiding excessive concentration of force. At the same time, the buffer column 305 (made of columnar airbags) built into the hexagonal frame 304 will further deform, absorbing and converting some of the impact energy into heat energy or other forms of energy, thereby reducing the impact on subsequent structures.

[0035] Subsequently, the remaining impact energy is transferred to the hollow rectangular bladder 301. Its interior is filled with a non-flowing liquid 302. Unlike ordinary liquids, this liquid does not flow rapidly when compressed; instead, it exhibits a certain degree of rigidity and damping characteristics, effectively distributing the impact force evenly and preventing excessive stress on a single point on the landing door 2. This avoids deformation or damage caused by localized stress concentration. This design of the hollow rectangular bladder 301 not only enhances the landing door's impact resistance but also maintains its structural integrity after an impact.

[0036] In addition, the anti-collision buffer strip 307, as an extra protective layer for the edge of the landing door 2, is made of highly elastic rubber material. It can deform significantly upon impact, further absorbing and dispersing impact energy. This design is specifically designed to address potential bumps and knocks that may occur when passengers enter or exit the elevator, effectively protecting the edge of the landing door from damage. It also reduces noise and vibration caused by impacts, improving the comfort and safety of elevator use.

[0037] Finally, the "Do Not Collide" warning sign 5 in the protective structure, with its striking color and clear warning information, reminds passengers to avoid colliding with the landing doors, thereby reducing the occurrence of accidental collisions at the source. This human-centered design not only enhances the safety of elevator use but also reflects meticulous care for passengers.

[0038] In summary, the elevator landing door protection structure, through the protective structure 3, effectively mitigates accidental impacts from passengers or objects, ensuring the structural integrity and normal function of the landing door 2. Simultaneously, the installation of the "Do Not Collide" warning sign 5 further prevents accidents, providing comprehensive protection for the safe operation of the elevator.

[0039] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A protective structure for elevator landing doors, characterized in that, It includes an elevator wall (1), on which a landing door groove (101) is provided, and a landing door (2) is slidably connected to the inner cavity of the landing door groove (101), and a protective structure (3) is provided on the landing door (2). The protective structure (3) includes a hollow rectangular bladder (301) fixedly installed on the door (2). The hollow rectangular bladder (301) is filled with a non-flowing liquid (302). A base plate (303) is fixedly installed on the hollow rectangular bladder (301). Several hexagonal frames (304) are fixedly installed on the base plate (303). The inner cavity of the hexagonal frames (304) is provided with a buffer column (305) fixedly installed on the hollow rectangular bladder (301). A force-bearing plate (306) is fixedly installed on the hexagonal frames (304). An anti-collision buffer strip (307) is fixedly installed on one side of the door (2).

2. The protective structure of an elevator landing door according to claim 1, characterized in that: The hollow rectangular bladder (301) fits into the door (2) and the base plate (303), and the hollow rectangular bladder (301) is located between the door (2) and the base plate (303).

3. The elevator landing door guard structure according to claim 1, characterized in that: The hexagonal frame (304) and the buffer column (305) are located between the base plate (303) and the load-bearing plate (306), wherein the buffer column (305) is made of columnar airbag.

4. The elevator landing door guard structure according to claim 1, characterized in that: The anti-collision buffer strip (307) is made of rubber strip, and the thickness of the anti-collision buffer strip (307) is equal to the thickness of the door (2), plus the thickness of the base plate (303), plus the thickness of the load-bearing plate (306), plus the vertical height of the hexagonal frame (304).

5. The elevator landing door guard structure according to claim 1, wherein: The load-bearing plate (306) has an installation groove (4) on its upper surface, and a warning sign (5) is fixedly installed in the inner cavity of the installation groove (4).

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