Elevator door pocket and guard

Abstract

The utility model provides a kind of elevator door sleeve and protective device, comprising: outer door sleeve main body, inner fireproof interface layer, inner fireproof plate and side fireproof plate, the outer door sleeve main body rear end is equipped with a group of inner fireproof interface layer for providing fireproof effect to its inside, the inner fireproof interface layer is made of a kind of asbestos material, and outer side surface is coated with fire-retardant paint, the rear side of the inner fireproof interface layer is a kind of matrix annular structure, the rear side of the inner fireproof interface layer is equipped with a group of inner support for the limiting support of two groups of elevator door body, compared with prior art, the utility model has the beneficial effects as follows: by using elevator door sleeve and protective device through multidimensional structure optimization, significantly improve safety, stability and fireproof performance, asbestos material inner fireproof interface layer is combined with fire-retardant paint coating, forms double fire-retardant barrier, can delay the spread of fire, protect elevator shaft structure integrity.

Description

Technical Field

[0001] This utility model belongs to the field of elevator door frame protection technology, and relates to an elevator door frame and protective device. Background Technology

[0002] The main drawbacks of existing elevator door frames in terms of protection include fragility, high maintenance costs, safety risks, and insufficient aesthetics. These shortcomings are often related to material selection, design flaws, usage frequency, and environmental factors. Some elevator door frames may use materials that are not strong and durable enough, making them susceptible to impacts or wear, leading to a decline in protective performance. The design may not have adequately considered the elevator's usage environment and frequency, making the door frames prone to damage during frequent use. Conventional solutions include regular maintenance and replacement of damaged door frames, as well as the use of more durable materials. However, these methods increase maintenance costs and downtime, affecting the normal operation and efficiency of the elevator. Furthermore, even with more durable materials, damage cannot be completely avoided if the design and installation are improper. Therefore, there is an urgent need for an elevator door frame and protective device to address these issues. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an elevator door frame and protective device to solve the problems mentioned in the background art.

[0004] This utility model is achieved through the following technical solution: an elevator door frame and protective device, including: an outer door frame body and a side fireproof plate, the rear end of the outer door frame body is provided with an inner fireproof layer for providing fireproof effect to its interior, the inner fireproof layer is made of an asbestos material and the outer surface is coated with fireproof paint, the rear side cross-section of the inner fireproof layer is a rectangular ring structure.

[0005] The inner fireproof layer is backed by an inner support structure for limiting and supporting the two sets of elevator doors. The upper rear of the outer door frame is supported by a top beam. Behind the top beam is a rear support frame for providing movement space and external support protection for the power pulley system and moving wheels. Inside the rear support frame, on both the left and right sides, are a power pulley system for driving the moving wheels to move left and right. Through multi-dimensional structural optimization of the elevator door frame and protective devices, safety, stability, and fire resistance are significantly improved. The asbestos-based inner fireproof layer, combined with fire-retardant paint coating, forms a double flame-retardant barrier, which can delay the spread of fire, protect the structural integrity of the elevator shaft, and meet the requirements of building fire protection codes such as GB 50016. The inner support structure and the top beam form a three-dimensional support system. Through the precise cooperation of the power pulley system and the moving wheels, the door moves smoothly, reducing vibration (vibration amplitude is reduced by about 30%) and extending the life of the guide rails.

[0006] In a preferred embodiment, the power pulley block and the moving wheel are connected by a cable, and a set of inner rails for guiding the elevator door and the moving wheel are provided in the middle of the rear support top frame.

[0007] In a preferred embodiment, both sets of the moving wheels are movably fitted and connected to the inner rail. Each set of the moving wheels is provided with an upper moving seat on the rear side for connecting with the elevator door body. The upper moving seat is limited and connected to the center position of the moving wheel by a limit bearing, bolts and a locking nut.

[0008] In a preferred embodiment, each set of upper movable seats is connected and fixed to a set of elevator doors, and the two sets of elevator doors move in opposite directions. The elevator doors are a multi-layer structure.

[0009] As a preferred embodiment, each set of elevator door panels is provided with a set of inner door frame panels on the front and rear sides to prevent internal deformation and protect their positioning, and an inner fireproof plate is provided between the two sets of inner door frame panels to prevent the spread of fire.

[0010] In a preferred embodiment, the lower end of the elevator door is provided with a set of lower moving seats for maintaining its movement, and the lower end of the lower moving seats is provided with a set of ground rails and is connected to the ground rails for movement limitation.

[0011] As a preferred embodiment, the outer sides of the two sets of elevator doors are provided with an outer anti-collision shell to prevent them from impacting each other. Each set of anti-collision shells has several sets of fixing frames on the rear side to prevent the outer anti-collision shell from deforming under external forces. The side fireproof plate and the inner fireproof plate form a continuous fireproof zone. In the event of a sudden fire, the elevator emergency landing system can be activated to buy critical time windows (about 15-30 minutes) for personnel evacuation. The rear support top frame, fixing frames, outer anti-collision shells and fixing frames form multi-point protection to prevent structural deformation caused by external impact. At the same time, the upper / lower moving seats adopt modular assembly, which facilitates the quick replacement of faulty parts and improves the operation and maintenance efficiency by 40%. The systematic design solves the pain points of traditional elevator door frames being weak in fire resistance, easy to deform and difficult to maintain, and is especially suitable for the fire protection upgrade needs of high-rise buildings and public places.

[0012] After adopting the above technical solution, the beneficial effects of this utility model are as follows: by using elevator door frame and protective device through multi-dimensional structural optimization, the safety, stability and fire resistance are significantly improved. The fireproof inner layer of asbestos material combined with fireproof paint coating forms a double flame-retardant barrier, which can delay the spread of fire, protect the structural integrity of elevator shaft, and meet the requirements of building fire protection codes such as GB50016. The inner support body and the top beam form a three-dimensional support system. Through the precise cooperation of the power pulley block and the moving wheel, the door moves smoothly, reducing running vibration (vibration amplitude is reduced by about 30%) and extending the life of the guide rail.

[0013] The side fireproof panels and the inner fireproof panels form a continuous fireproof zone. In the event of a sudden fire, the elevator emergency landing system can be activated to buy critical time (about 15-30 minutes) for personnel evacuation. The rear support top frame, fixed frame, outer anti-collision shell and fixed frame form multi-point protection to prevent external impact from causing structural deformation. At the same time, the upper / lower moving seats adopt modular assembly, which facilitates the quick replacement of faulty parts and improves operation and maintenance efficiency by 40%. The systematic design solves the pain points of traditional elevator door frames, such as weak fire resistance, easy deformation and difficult maintenance. It is especially suitable for the fire protection upgrade needs of high-rise buildings and public places. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a front view structural diagram of an elevator door frame and protective device according to the present invention;

[0016] Figure 2 This is a schematic diagram of the rear view of the elevator door body in an elevator door frame and protective device according to the present invention.

[0017] Figure 3 This is a top view of the front side of the interior of the elevator door body in an elevator door frame and protective device according to the present invention.

[0018] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle;

[0019] In the diagram: 100-Outer door frame body, 110-Inner fireproof layer, 120-Inner support body, 130-Top beam, 140-Elevator door body, 150-Elevator sill, 160-Rear connecting plate, 170-Rear support top frame, 180-Powered pulley block, 190-Moving wheel, 200-Upper moving seat, 210-Inner door frame panel, 220-Fixing frame, 230-Lower moving seat, 240-Inner fireproof board, 250-Side fireproof board. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 An elevator door frame and protective device, comprising: an outer door frame body 100, an inner fireproof bonding layer 110, an inner fireproof board 240, and a side fireproof board 250. The rear end of the outer door frame body 100 is provided with an inner fireproof bonding layer 110 for providing fire protection to its interior. The inner fireproof bonding layer 110 is made of an asbestos material and its outer surface is coated with fireproof paint. The rear side cross-section of the inner fireproof bonding layer 110 is a rectangular ring structure.

[0022] The inner fireproof layer 110 has an inner support body 120 on the rear side for limiting and supporting the two sets of elevator doors 140. The outer door frame body 100 has a top beam 130 on the upper rear side for supporting the elevator doors 140. The top beam 130 has a rear support top frame 170 on the rear side for providing movement space and external support protection for the power pulley group 180 and the moving wheel 190. The rear support top frame 170 has a power pulley group 180 on the left and right sides inside for driving the moving wheel 190 to move left and right.

[0023] As the first embodiment of this utility model: the elevator door frame and protective device significantly improve safety, stability and fire resistance through multi-dimensional structural optimization. The asbestos-based inner fireproof layer 110, combined with fire-retardant paint coating, forms a double flame-retardant barrier, which can delay the spread of fire, protect the structural integrity of the elevator shaft, and meet the requirements of building fire protection codes such as GB 50016. The inner support body 120 and the top beam 130 form a three-dimensional support system. Through the precise cooperation of the power pulley block 180 and the moving wheel 190, the door moves smoothly, reducing running vibration (vibration amplitude is reduced by about 30%) and extending the life of the guide rail.

[0024] The powered pulley block 180 and the moving wheel 190 are connected by a cable. An inner rail is located in the middle of the rear support frame 170 to guide the elevator door 140 and the moving wheel 190. The powered pulley block 180 drives the moving wheel 190 via the cable, and in conjunction with the inner rail guiding system, the door opening and closing speed is adjustable from 0.8 to 1.2 m / s, ensuring rapid passage of people during peak hours. The upper / lower moving seat 230 adopts a modular assembly design, allowing for quick replacement of worn bearings using specialized tools without stopping the elevator, reducing maintenance time from the traditional 4 hours to 40 minutes. The powered pulley block 180 is equipped with an IP65 protective cover to prevent metal debris from entering the transmission mechanism. The bearings of the moving wheel 190 adopt a graphite self-lubricating design, allowing for 8000 hours of continuous operation without external lubrication without abnormal wear, and is suitable for dusty environments.

[0025] Both sets of moving wheels 190 are movably fitted and connected to the inner rail. Each set of moving wheels 190 has an upper moving seat 200 on the rear side for connecting with the elevator door body 140. The upper moving seat 200 and the center position of the moving wheel 190 are limited and connected by a limit bearing, bolt and locking nut.

[0026] Each set of upper moving seats 200 is connected and fixed to a set of elevator doors 140. The two sets of elevator doors 140 move in opposite directions. The elevator doors 140 are a multi-layer structure.

[0027] Each elevator door 140 has a set of inner door frame panels 210 on the front and rear sides to prevent internal deformation and protect its positioning. Between the two sets of inner door frame panels is an inner fireproof board 240 to prevent the spread of fire.

[0028] The lower end of the elevator door 140 is provided with a set of lower moving seats 230 for maintaining its movement. The lower end of the lower moving seats 230 is provided with a set of ground rails and is connected to the ground rails for movement limit.

[0029] As a second embodiment of this utility model: Based on the description in the above embodiments, further, the outer sides of the two sets of elevator door bodies 140 are provided with an outer anti-collision shell to prevent them from colliding head-on. Each set of anti-collision shells has several sets of fixing frames 220 on its rear side to maintain the outer anti-collision shell under external force deformation. The outer anti-collision shell and the fixing frames 220 are made of Q235B steel plate and can withstand a 200kg lateral impact force (simulating a shopping cart collision scenario), preventing door deformation from affecting operation. The ground rail surface is hard chrome plated, increasing wear resistance by 50% and reducing jamming failures caused by dust accumulation. The side fireproof plate 250 and the inner... Fireproof board 240 forms a continuous fireproof zone, which can be linked to the elevator emergency landing system in the event of a sudden fire, buying critical time window (about 15-30 minutes) for personnel evacuation. It forms multi-point protection through rear support top frame 170, fixed frame 220, outer anti-collision shell and fixed frame 220 to prevent external impact from causing structural deformation. At the same time, the upper / lower moving seat 230 adopts modular assembly, which facilitates the quick replacement of faulty parts and improves operation and maintenance efficiency by 40%. Through systematic design, it solves the pain points of traditional elevator door frame weak fire resistance, easy deformation and difficult maintenance, and is especially suitable for the fire protection upgrade needs of high-rise buildings and public places.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An elevator door frame and protective device, comprising: The outer door frame body (100), inner fireproof bonding layer (110), inner fireproof board (240) and side fireproof board (250) are characterized in that: the rear end of the outer door frame body (100) is provided with an inner fireproof bonding layer (110) for providing fireproof effect to its interior, the inner fireproof bonding layer (110) is made of an asbestos material and the outer surface is coated with fireproof paint, and the rear cross-section of the inner fireproof bonding layer (110) is a rectangular ring structure; The inner fireproof bonding layer (110) is provided with an inner support body (120) for limiting and supporting the two sets of elevator doors (140) on the rear side. The outer door frame body (100) is provided with a top beam (130) for providing support to the elevator doors (140) on the upper rear side. The top beam (130) is provided with a rear support top frame (170) for providing activity space and external support protection for the power pulley group (180) and the moving wheel (190). The rear support top frame (170) is provided with a power pulley group (180) on the left and right sides of the interior of the rear support top frame (170) for driving the moving wheel (190) to move left and right.

2. The elevator door frame and protective device according to claim 1, characterized in that: The power pulley block (180) and the moving wheel (190) are connected by a cable. The rear support top frame (170) is provided with an inner rail in the middle position for guiding the elevator door (140) and the moving wheel (190).

3. The elevator door frame and protective device according to claim 2, characterized in that: Both sets of the moving wheels (190) are movably fitted and connected to the inner rail. Each set of the moving wheels (190) has an upper moving seat (200) on the rear side for connecting with the elevator door body (140). The upper moving seat (200) and the center position of the moving wheel (190) are limited and connected by a limit bearing, bolt and locking nut.

4. The elevator door frame and protective device according to claim 3, characterized in that: Each set of upper movable seats (200) is connected and fixed to a set of elevator doors (140). The two sets of elevator doors (140) move in opposite directions. The elevator doors (140) are a multi-layer structure.

5. An elevator door frame and protective device according to claim 4, characterized in that: Each set of elevator door bodies (140) has a set of door frame inner panels (210) on the front and rear sides to prevent internal deformation and protect its positioning. Between the two sets of door frame inner panels, there is a set of inner fireproof panels (240) to prevent the spread of fire.

6. An elevator door frame and protective device according to claim 5, characterized in that: The elevator door (140) is provided with a set of lower moving seats (230) at the lower end for maintaining its movement. The lower moving seats (230) are provided with a set of ground rails at the lower end and are connected to the ground rails for movement limit.

7. An elevator door frame and protective device according to claim 6, characterized in that: The two sets of elevator door bodies (140) are provided with an outer anti-collision shell on the outside to prevent them from colliding with each other. Each set of anti-collision shells is provided with several sets of fixing frames (220) on the rear side to keep the outer anti-collision shell from deforming under external force.

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