A mobile emergency escape device for high-rise buildings

Abstract

The present application relates to high-rise building escape and rescue technical field, disclose a kind of mobile emergency escape equipment for high-rise building, including wheel disc device, damping device, safety belt, further including a box with inner cavity, telescopic handle assembly and universal wheel;Further include several respectively pre-fixed in the upper end and lower end of the window of each room wall guiding component and fixed component, connecting component is provided on the box, temporarily fixed on the wall when escaping, and guiding sliding device is provided on the steel wire, after the box is fixed, the steel wire is pulled up and connected with guiding component, to realize the synchronous limiting and sliding of both. Simple structure, convenient to carry and use, can be moved flexibly and quickly according to the change of indoor fire, and effectively avoid the damage of steel wire, significantly improve the safety performance.

Description

Technical Field

[0001] This invention relates to the field of high-rise building escape and rescue technology, and in particular to a mobile emergency escape device for high-rise buildings. Background Technology

[0002] With the continuous acceleration of urbanization in my country and the expansion of urban areas, high-rise buildings such as residential buildings and office buildings are now ubiquitous. However, fires in high-rise buildings are also frequent. Relying solely on emergency escape routes or firefighters often fails to provide the fastest possible escape time, causing enormous loss of life and property to the nation and its people. In response to these problems, many self-rescue emergency escape devices have been developed in recent years.

[0003] High-rise emergency escape descent devices use the user's own weight as the descent force and achieve a uniform and controllable descent through mechanical damping. The core principle is to ensure safety through the dynamic balance of gravity and friction. The specific working mechanisms of different structures are as follows:

[0004] 1. Core General Principles:

[0005] All types of descent devices follow the basic logic of gravity-driven + damping-limited speed: using the user's weight to pull the rope, an internal braking device generates controllable resistance to counteract the acceleration effect of gravity, stabilizing the descent speed within a safe range of 0.16-1.5 meters per second, ensuring a smooth landing for the user. Based on the braking mechanism, the main types differ in their operating principles as follows:

[0006] Centrifugal type (most common): When the rope drives the speed limiting wheel to rotate, the centrifugal block opens outward under the action of centrifugal force and squeezes against the inner wall of the friction cover to generate frictional damping. The faster the speed, the greater the centrifugal force and the greater the friction. It automatically maintains a uniform descent. The structure is simple and does not require additional power.

[0007] Friction type: The speed is limited by friction generated through direct contact between the rope and braking components (such as friction brake pads or friction rods). Modern products often use α-shaped fully wrapped rope and cut-corner rope groove design to increase the contact area, and are paired with high-temperature and wear-resistant brake pads to improve the stability of friction.

[0008] Air-damped type: It controls the descent speed by relying on the resistance generated by air compression. It is mostly used in personal backpack products. It does not require mechanical friction, has no wear and tear risks, and is suitable for home emergency scenarios.

[0009] Electromagnetic / hydraulic damping: Speed ​​is controlled by adjusting the speed through electromagnetic torque and by generating damping through hydraulic oil throttling, respectively. This is a niche technology and is mostly found in professional rescue equipment.

[0010] 2. Overall Structure and Key Designs:

[0011] A descent device typically consists of hooks (rings), straps, high-strength ropes, and a speed controller (core component). The speed controller automatically adjusts the resistance based on the user's weight: the greater the weight, the greater the centrifugal force or squeezing force, and the greater the damping resistance. Therefore, regardless of weight, a stable descent speed can be maintained.

[0012] Currently, the relevant patent technologies for high-rise emergency escape equipment are as follows:

[0013] CN107510901A discloses a speed-controlled descent device and method for emergency escape and rescue in high-rise buildings. The device includes an automatic descent device fixed to the building and a rope reel that cooperates with the automatic descent device via a wound safety rope. An auxiliary safety rope is fixedly installed on the building next to the automatic descent device, and a manual descent device is slidably installed on the wound safety rope and the auxiliary safety rope. The method includes the following steps: 1. Preparation for emergency escape in high-rise buildings; 2. Installation of the manual descent device; 3. Activation of the rope reel; 4. Speed-controlled descent of the escapee; 5. Untying of the escapee upon landing; 6. Resetting of the rope reel.

[0014] CN115999083A discloses a high-rise escape descent device with dual speed limiting, including an outer shell with a shoulder strap connected to it. A safety rope is provided inside the outer shell, and the safety rope is wound around a storage unit. The storage unit is rotatably installed inside the outer shell and connected to an automatic speed limiting mechanism. One end of the safety rope passes through the outer shell and is connected to a hook. When the hook is attached to the outside, the storage unit rotates slowly and uniformly under the action of the automatic speed limiting mechanism, so that the safety rope is pulled out from the inner cavity of the outer shell at a uniform speed.

[0015] CN214912784U discloses a reciprocating high-rise escape descent device, including a fixed bracket, a deceleration mechanism, and a descent rope reel. The upper part of the deceleration mechanism is equipped with a hook, and the deceleration mechanism is installed on the fixed bracket through the hook. The descent rope reel contains a descent rope, which passes through the interior of the deceleration mechanism and can slow down its own movement speed through the deceleration mechanism. Features: The two ends of the descent rope are respectively fixed with a first and a second safety belt. The deceleration mechanism includes an outer shell assembly, which includes a mounting panel and a connecting cover plate arranged opposite to each other. There is a connecting cover between the mounting panel and the connecting cover plate. The connecting cover is hollow inside and forms a cover cavity. The connecting cover and the mounting panel are arranged perpendicularly. The radial diameter of the mounting panel and the connecting cover plate is larger than the diameter of the two end faces of the cylindrical body of the connecting cover. The cover cavity of the connecting cover contains a rope winding disc and a brake assembly. The descent rope reel contains a winch, and the descent rope is connected to the descent rope reel through the winch.

[0016] CN120393322A discloses a multi-person shared, non-powered, circulating chain-driven high-rise emergency uniform speed descent device, including a housing and an outer frame. The front end of the outer frame extends outside the building, and the housing is located outside the building. The chain drive mechanism includes a first sprocket, a second sprocket, and a third sprocket. Third mounting blocks are provided on both sides of the third sprocket on the third drive shaft. The third mounting blocks are slidably connected to a floating slide rail. A first support spring is fixed to the bottom of the third mounting block. The chain extends from the bottom of the housing into the housing, first passing over the top of the third sprocket, then over the bottom of the second sprocket, then over the top of the first sprocket, and then extends downwards out of the housing. The first drive shaft is connected to a deceleration device that automatically adjusts the rotation speed of the first drive shaft according to the total weight of the people escaping on the chain, and an automatic power generation lighting component.

[0017] Combining the aforementioned patented technologies and existing technologies, it is evident that there are currently many types of emergency escape devices for high-rise buildings. Research primarily focuses on how to make the speed of damping deceleration devices easier to control, how to make the descent process smoother, how to allow multiple people to use a single escape device repeatedly, and how to provide sufficient damping for escapers of different weights at a safe descent speed. However, a crucial practical situation during a fire and a significant safety issue during the emergency escape descent process have been overlooked. First, in high-rise fires, the fire often doesn't originate in a specific room, and due to strong winds, the fire spreads rapidly. Fixed and wall-mounted escape devices are generally installed in fixed rooms; once a fire breaks out in that room, people often cannot enter, and escapees cannot use the escape devices fixed within that room to escape. Secondly, regardless of whether it's a fixed or backpack escape device, the end of the steel cable needs to be secured to the wall or door of the room. The person is then slowly lowered down the cable from outside the building. During this descent, the cable inevitably rubs repeatedly against protruding structures such as building exterior walls, air conditioner brackets, sharp corners of exterior walls, and window frame protrusions, causing damage. This is especially true for escape devices that use reciprocating steel cables, increasing the risk of breakage when multiple people are using them. Furthermore, flames from an indoor fire can scorch the cable, causing it to break, particularly in cases where fires start in lower-floor apartments and spread upwards. Actual accidents have shown that substandard steel core escape ropes can melt upon contact with the high temperatures of metal supports on exterior walls, resulting in serious injuries from falls. Clearly, current high-rise emergency escape equipment cannot solve these problems, making this a significant safety hazard.

[0018] In summary, how to effectively ensure that people can escape from fires regardless of the location of escape equipment, and how to flexibly and quickly escape from safe windows according to changes in the indoor fire situation, while effectively preventing the steel wire rope from breaking due to repeated friction with the building's exterior walls during the descent, thus affecting escape safety, has become a pressing problem for technicians in the field of high-rise building escape and rescue. Summary of the Invention

[0019] In view of the shortcomings of the existing technology, the technical problem to be solved by the present invention is to provide a mobile emergency escape device for high-rise buildings that is simple in structure, easy to carry and use, can be moved flexibly and quickly according to changes in indoor fire conditions, effectively avoids damage to steel wire ropes, and significantly improves safety performance.

[0020] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a mobile emergency escape device for high-rise buildings, comprising a wheel device for winding and storing steel wire rope and for rotating and releasing the steel wire rope during use, a damping device for providing uniform and controllable descent resistance to the escapee, and a safety belt for securing the escapee. The damping device has an input end and an output end. The wheel device is connected to the input end of the damping device through the wound and stored steel wire rope. The steel wire rope entering the damping device through the input end extends out from the output end of the damping device. The safety belt is fixed to the steel wire rope extending out from the output end. The device also includes a box with an inner cavity. The box is provided with telescopic handle assemblies for easy pushing and pulling, and casters for easy movement. The wheel device is located at the bottom of the inner cavity, and the damping device is located at the top of the inner cavity. The steel wire rope extends upward from the top of the box through the output end of the damping device. The safety belt is fixed to the end of the steel wire rope extending from the top of the box. It also includes several guide components and fixing components that are pre-fixed to the upper and lower ends of the windows on the walls of each room. The box is provided with a connecting component that is connected to the fixing component to temporarily fix the box to the wall when used for escape. The steel wire rope is provided with a guide sliding device that pulls the steel wire rope upward after the box is fixed and assists the steel wire rope to connect with the guide component, so as to realize the synchronous limiting and sliding of the two.

[0021] The aforementioned mobile emergency escape device for high-rise buildings includes a wheel device comprising two parallel and opposite circular discs, with a cylinder for winding and storing steel wire rope connected between the two circular discs. A storage area for accommodating the wound steel wire rope is formed along the axial direction of the cylinder between the two circular discs. The cylinder is equipped with an elastic pre-tensioning device that tightens the wound steel wire rope when static and provides real-time restraint for the continuously released steel wire rope during use.

[0022] The aforementioned mobile emergency escape device for high-rise buildings includes an elastic pre-tightening device comprising a fixed shaft coaxially arranged inside the cylinder, with both ends of the fixed shaft extending outwards and passing through two circular discs and fixed to the housing. An elastic friction constraint component is provided on the fixed shaft to apply elastic constraint force to the two circular discs.

[0023] The aforementioned mobile emergency escape device for high-rise buildings includes an elastic friction constraint component comprising a compression spring disposed at either end of a fixed shaft, and a blocking component disposed on the fixed shaft for compressing the compression spring and providing a continuous elastic force to the surface of the circular disc. A sleeve is disposed on the fixed shaft between the circular disc and the housing near the end of the compression spring, providing elastic friction to the outer surface of the circular disc when the steel wire rope is pulled and drives the circular disc to rotate.

[0024] The aforementioned mobile emergency escape device for high-rise buildings includes a guide component and a fixing component that are metal safety rings fixed to the wall, and a connecting component that is a first metal latch that is connected and fixed to the fixing component during use.

[0025] The aforementioned mobile emergency escape device for high-rise buildings includes a guide sliding device comprising a metal base, a guide hole at one end of the metal base allowing a steel wire rope to pass through and slide with the steel wire rope, and a second metal buckle connected to the other end of the metal base for quick connection and fixation with the guide component.

[0026] The aforementioned mobile emergency escape device for high-rise buildings has several spare safety belts stored on the housing for multiple people to escape. The spare safety belts are safety belts with adjustable self-locking buckles that can be directly fixed to steel wire ropes.

[0027] The aforementioned mobile emergency escape device for high-rise buildings includes a secondary housing for storing spare safety belts on the main body. The secondary housing includes a shell with an inner opening on one side of the main body. The shell contains several storage cavities for storing spare safety belts. The bottom of the shell is hinged to the main body via a hinge. A locking pin for opening and closing the secondary housing is provided on the main body.

[0028] The aforementioned mobile emergency escape device for high-rise buildings has an installation frame consisting of a top plate, a bottom plate, a front side plate, and a rear side plate inside the box. Openings are provided on the top plate and the top of the box to allow the steel wire rope to extend. The wheel device and the damping device are both fixed on the installation frame. The two ends of the fixed shaft extend outward and pass through the two circular discs to be fixed to the front side plate and the rear side plate, respectively. A sleeve is provided between the circular discs and the front side plate.

[0029] The aforementioned mobile emergency escape device for high-rise buildings has a storage box on the top of the housing for holding a partially extended steel wire rope, safety belt and guide sliding device. The storage box includes a box body welded to the top of the housing and a cover for opening and closing the box body. The connecting component is fixed to the outer wall of the box body.

[0030] The advantages of the mobile emergency escape device for high-rise buildings of this invention are:

[0031] 1. Flexible movement and free choice of room for escape:

[0032] The device is equipped with casters at the bottom and telescopic handles on the sides, forming a movable integrated enclosure that does not require pre-fixation to a single window. In the event of a fire, escaping personnel can directly push or pull the device to move through the building and autonomously to a safe room that is not on fire. The device can then be quickly locked to pre-installed fixing components on the room's wall using connecting parts on the enclosure, achieving temporary fixation. This completely eliminates the installation location limitations of traditional fixed escape devices and allows for seamless selection of safe escape windows based on dynamic changes in the fire situation.

[0033] 2. Avoid reusing wire ropes:

[0034] The wheel device features an internal elastic pre-tensioning structure. Through a coaxial fixed shaft, compression spring, and elastic friction constraint components, it continuously applies a tightening constraint force to the wire rope wound on the drum when static. After release, it automatically and neatly rewinds the wire rope back to the storage area, preventing knots, bending, or deformation. The device is also equipped with multiple independent spare safety belts, which can be directly connected to the end of a newly released wire rope via self-locking buckles. Each person's escape corresponds to a non-reused section of wire rope, avoiding the safety hazards of multiple people sharing the same section of wire rope in traditional reciprocating escape devices, which involve repeated friction and potential fire damage.

[0035] 3. To prevent the wire rope from becoming entangled and unable to be released:

[0036] The elastic pre-tensioning device in this invention can prevent the wire rope from becoming loose or tangled in the cylinder during the handling and movement of the container, thus preventing the wire rope from being released smoothly during use. The anti-loosening mechanism can be divided into two parts: 1) Static constraint winding. Through a fixed shaft coaxial with the cylinder inside the container, combined with a compression spring and blocking components, an axial elastic clamping force is continuously applied to the two circular discs on both sides, so that a stable elastic friction force is formed between the discs and the sleeve, pressing the wire rope wound on the cylinder tightly throughout the process, preventing the wire rope from becoming loose or misaligned due to inertial impact during handling and movement of the container. 2) Dynamic synchronous limiting. During the process of the wire rope being pulled and released, this elastic friction force can constrain the rotation speed of the discs in real time, so that the wire rope always maintains a moderate tension, preventing local stacking or disordered tangling, ensuring that the wire rope can be released smoothly and orderly throughout the process without jamming. Attached Figure Description

[0037] Figure 1 This is a product image of the mobile emergency escape device for high-rise buildings according to the present invention;

[0038] Figure 2 This is an overall structural diagram of the mobile emergency escape device for high-rise buildings according to the present invention;

[0039] Figure 3 This is a schematic diagram of the internal structure of a mobile emergency escape device.

[0040] Figure 4 This is a diagram illustrating the usage status of the mobile emergency escape device of the present invention;

[0041] Figure 5 This is a magnified view of the partial structure connecting the enclosure to the wall during use;

[0042] Figure 6 Enlarged view of the structure connecting the guide sliding device and the safety belt;

[0043] Figure 7 This is a full sectional view of the wheel assembly;

[0044] Figure 8 for Figure 7 Enlarged view of a portion of the structure in section A;

[0045] Figure 9 for Figure 7 Enlarged view of a local structure in section B;

[0046] Figure 10 This is an enlarged view of the sub-box structure. Detailed Implementation

[0047] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] In this invention, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in its actual use or operating state, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device. Furthermore, in the description of this application, the term "comprising" means "including but not limited to". The terms first, second, third, etc., are used merely as illustrative purposes and do not impose numerical requirements or establish an order. The term "multiple" means "two or more".

[0049] like Figure 1 , 2As shown, a mobile emergency escape device for high-rise buildings includes a box 2 with an inner cavity 1. The box 2 is equipped with a telescopic handle assembly 3 for easy pushing and pulling, and casters 4 for easy movement. An installation frame consisting of a top plate 5, a bottom plate 6, a front side plate 7, and a rear side plate 8 is provided within the inner cavity 1 of the box 2. Openings allowing steel wire ropes 9 to extend are provided on the top plate 5 and the top of the box 2. The telescopic handle assembly 3 used in this invention is a component commonly used in conventional luggage rolling suitcases. During use, it is pulled out by pressing a button for easy pushing, pulling, and movement. This technology is prior art and will not be described in detail here.

[0050] Inside the housing 2, there is a wheel device 10 for winding and storing the steel wire rope 9 and for rotating and releasing the steel wire rope 9 during use; a damping device 11 for providing a uniform and controllable descent resistance to the escapee; and a safety belt 12 for securing the escapee. The damping device 11 has an input end and an output end. The wheel device 10 is connected to the input end of the damping device 11 through the wound and stored steel wire rope 9. The steel wire rope 9 that enters the damping device 11 through the input end extends out from the output end of the damping device 11. The safety belt 12 is fixed to the steel wire rope 9 that extends out from the output end.

[0051] The damping device 11 used in this invention is preferably a damper for balancing the velocity of falling objects (publication number CN109114162A) applied for by the inventor on October 15, 2018. This non-powered damper reduces the overall weight of the equipment and has relatively low production costs. The cooperation of the planetary gears, central sun, gear ring, and sliding blocks makes the operation more stable and safer. Of course, other damping devices can also be selected, such as a centrifugal damping device for a descent device disclosed in CN215025433U, a speed limiting module and a high-rise escape descent device disclosed in CN209108447U, etc. As long as a stable and safe damping function can be achieved, and the goal of safe and uniform descent for users of different weights can be met, flexible selection and application can be made considering cost and compact installation. The safety belt used in this invention is preferably an adjustable self-locking buckle and its high-altitude emergency escape safety belt (publication number CN120884833A) applied for by the applicant on August 18, 2025, because it has a self-locking function during the descent of the escaped person, and the locking degree can be adjusted in real time and flexibly, thus having higher safety performance. Of course, this application can also use conventional safety belts used in other emergency escape devices.

[0052] like Figure 3-5As shown, the wheel device 10 of the present invention is located at the bottom of the inner cavity 1, and the damping device 11 is located at the top of the inner cavity 1. Both the wheel device 10 and the damping device 11 are fixed on the mounting frame. The steel wire rope 9 extends upward from the top of the box 2 through the output end of the damping device 11. The safety belt 12 is fixed to the end of the steel wire rope 9 extending from the top of the box 2. It also includes several guide components 15 and fixing components 16 that are respectively pre-fixed to the upper and lower ends of the windows 14 of the walls 13 of each room. The box 2 is provided with a connecting component 17 connected to the fixing component 16 to temporarily fix the box 2 to the wall 13 when used for escape. The steel wire rope 9 is provided with a guide sliding device 18 that pulls the steel wire rope 9 upward after the box 2 is fixed and assists the steel wire rope 9 to connect with the guide component 15, so as to realize the synchronous limiting and sliding of the two. The guide sliding device 18 includes a metal base 19, with a guide hole 20 at one end of the metal base 19 that allows the wire rope 9 to pass through and slides between the wire rope 9 and the guide component 15. At the other end of the metal base 19, a second metal buckle 21 is connected to the guide component 15 for quick connection and fixation.

[0053] In this invention, both the guide component 15 and the fixing component 16 are metal safety rings fixed to the wall, also commonly referred to as anti-fall safety hooks. These are connecting hardware components with locking functions: fixed to the wall via an expansion structure, their built-in locking rings can be connected to ropes, safety belts, etc., effectively preventing accidental disengagement and ensuring the stability of hoisting and suspension. This structure is existing technology and will not be described in detail. The connecting component 17 is the first metal lock that connects and is fixed to the fixing component 16 during use. The second metal lock 21 and the first metal lock are locking aluminum alloy carabiners, also commonly referred to as D-type quick-releases. These are commonly used outdoor connecting hooks; their D-shaped structure enhances load-bearing capacity, and the locking design prevents accidental opening and closing, providing higher security.

[0054] like Figure 6-9As shown, the wheel device 10 includes two parallel and opposite circular discs 22, with a cylinder 23 connecting the two discs 22 for winding and storing a steel wire rope 9. A storage area 24 for accommodating the wound steel wire rope 9 is formed along the axial direction of the cylinder 23 between the two discs 22. An elastic pre-tensioning device is provided inside the cylinder 23 to tighten the wound steel wire rope 9 when static and to provide real-time constraint on the continuously released steel wire rope 9 during use. The elastic pre-tensioning device includes a fixed shaft 25 disposed inside the cylinder 23 and coaxially arranged with the cylinder 23. Both ends of the fixed shaft 25 extend outwards through the two circular discs 22 and are fixed to the front side plate 7 and the rear side plate 8, respectively. An elastic friction constraint component is provided on the fixed shaft 25 to apply an elastic constraint force to the two circular discs 22. The elastic friction constraint component includes a compression spring 26 provided at either end of the fixed shaft 25, and a blocking component 27 provided on the fixed shaft 25 for compressing the compression spring 26 and providing a continuous elastic force to the surface of the circular disc 22. A sleeve 28 is provided on the fixed shaft 25 between the circular disc 22 and the front side plate 7 near the end of the compression spring 26 to provide elastic friction to the outer surface of the circular disc 22 when the steel wire rope 9 is pulled and drives the circular disc 22 to rotate.

[0055] Since the steel wire rope 9 wound on the cylinder 23 is evenly distributed along the axial direction of the cylinder 23, the force on the cylinder 23 is uneven during the release process under the pull of a person's weight. In order to prevent the wheel device 10 from swaying radially due to uneven force during rotation, thus affecting the stability of the wheel device 10, a secondary sleeve 29 is installed between the rear side plate 8 and the circular disc 22 to improve the stability during rotation and limit the radial sway of the end of the cylinder. In this invention, the sleeve 28 and the secondary sleeve 29 installed on the outside of the two circular discs 22 are clearance-fitted with the fixed shaft 25 and are fitted onto the surface of the fixed shaft 25 during installation. During installation, the sleeve 28 is pre-installed, and then the fixed shaft 25 is pressed along the axial direction of the fixed shaft 25 towards the compression spring 26. At this time, the spring is compressed and pushes one side of the circular disc 22 to press against the sleeve 28. One end of the fixed shaft 25 passes through the front side plate 7 and is locked by the front nut 30, fixing the fixed shaft 25 to the front side plate 7. Then, the auxiliary sleeve 29 and the rear side plate 8 are installed, and the fixed end of the fixed shaft 25 is fixed to the rear side plate 8 by the rear nut 31. Since the fixed shaft 25 is locked between the front side plate 7 and the rear side plate 8 and cannot rotate, when the cylinder 23 is rotated under force, the elastic force generated by the compression spring 26 is transmitted to the sleeve 28 and the front side plate 7 through the circular disc 22. A stable elastic friction force is formed between the circular disc 22, the sleeve 28 and the front side plate 7 to constrain the rotation of the wheel device 10.

[0056] The blocking component 27 of the present invention can be integrally formed when machining the fixed shaft 25, or it can be fixed on the fixed shaft 25 by screws or bolts. The blocking component 27 is mainly used to constrain the compression spring 26 and press the compression spring 26 axially to the inner side of the circular disc 22, so that the compression spring 26 generates compression force. Therefore, the outer diameter of the blocking component 27 only needs to be larger than the outer diameter of the compression spring 26.

[0057] like Figure 3 , 4 As shown in Figure 9, to avoid the safety hazards caused by reusing steel wire ropes, this invention stores several spare safety belts 32 for multiple escapes on the box. Each escapee uses one spare safety belt, which is then locked to the steel wire rope 9, ensuring that each escapee uses a newly released steel wire rope 9, thus improving safety performance. The spare safety belt 32 used in this invention is a safety belt with an adjustable self-locking buckle that can be directly fixed to the steel wire rope. A steel wire rope locking device (publication number CN212004109U) applied for by the inventor on April 27, 2020, is also described. This steel wire rope locking device, after being connected to an ordinary safety belt, can be directly and flexibly locked to the steel wire rope 9 without the need for pre-connection of the steel wire rope, making it more convenient to use. It also features a simple structure, light weight, small size, and easy portability.

[0058] like Figure 10 As shown, in order to facilitate carrying the spare seat belt 32, a secondary compartment for storing the spare seat belt 32 is provided on the housing 2. The secondary compartment includes a shell 33 with an inner opening on one side of the housing 2. Several storage cavities 34 for storing the spare seat belt 32 are provided inside the shell 33. To facilitate quick opening and closing, the bottom of the shell 33 is hinged to the housing 2 by a hinge 35. A locking pin for opening and closing the secondary compartment is provided on the housing 2. Quick opening and closing are achieved through a simple plug-in structure.

[0059] The top of the box 2 is provided with a storage box 36 for placing the partially protruding steel wire rope 9, safety belt 12 and guide sliding device 18. The storage box 36 includes a box body 37 welded to the top of the box 2 and a cover 38 for opening and closing the box body 37. To simplify the overall structure, the connecting component 17 of the present invention is fixed to the outer side wall of the box body 37.

[0060] In use, the first person to escape descends via the safety harness 12 at the end of the steel wire rope 9. Other escapees then descend sequentially via spare safety harnesses 32, secured to the continuously extending new steel wire rope 9. This ensures that each escapee uses a brand-new steel wire rope 9, preventing reuse. Regarding configuration, to accommodate different floor heights, the length of the steel wire rope 9 can be set from 100 to 500 meters, and different lengths can be manufactured according to actual needs. For example, in a 25-story building, the total height of a typical residential building is usually between 70 and 75 meters. The descent length required for a single escapee is 70-75 meters. Assuming three other escapees, the total length would be 280-300 meters. Therefore, a 350-meter steel wire rope can be used. Thus, due to varying floor requirements, appropriate escape equipment can be flexibly selected based on the actual floor height and number of people.

[0061] In summary, this invention allows for flexible movement to safe windows for escape during fires, overcoming the location limitations of traditional fixed escape devices. It adapts to complex fire scenarios in various buildings, demonstrating strong scenario adaptability. By avoiding the reuse of steel wire ropes, it eliminates the problem of rope breakage due to friction with external walls and fire. An elastic pre-tensioning device prevents the steel wire ropes from becoming loose or jammed. It also supports multiple people escaping sequentially, significantly improving the escape success rate in extreme scenarios and providing high safety redundancy. There is no need for multiple installations on each floor; a single device can cover multiple rooms on an entire floor. Routine maintenance only requires periodic checks of the steel wire ropes, resulting in significantly lower operation and maintenance costs compared to multiple fixed devices, making deployment and maintenance convenient. Currently, most mainstream products in the industry are fixed descent devices. This technical solution fills a gap in the market for flexible, mobile devices, offering significant advantages in densely populated scenarios such as hotels, office buildings, and hospitals, and its market penetration rate is expected to increase rapidly. Domestic standards have been issued, which clearly recommend that public buildings over 50 meters in height be equipped with rapidly deployable auxiliary escape devices. Cities such as Beijing, Shanghai, Guangzhou and Shenzhen have already implemented local mandatory configuration requirements. After the national standards are implemented from 2026 to 2028, a large amount of demand will be released. Therefore, this invention has broad market application prospects.

[0062] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should be protected by the present invention.

Claims

1. A mobile emergency escape device for high-rise buildings, comprising a wheel device for winding and storing a steel wire rope and for rotating to release the steel wire rope during use, a damping device for providing a uniform and controllable descent resistance to the escapee, and a safety belt for securing the escapee. The damping device has an input end and an output end. The wheel device is connected to the input end of the damping device via the wound steel wire rope. The steel wire rope entering the damping device through the input end extends out from the output end of the damping device. The safety belt is fixed to the steel wire rope extending from the output end. The device is characterized in that: It also includes a box with an inner cavity, on which are provided telescopic handle assemblies for easy pushing and pulling, and casters for easy movement. The wheel assembly is located at the bottom of the inner cavity, and the damping device is located at the top of the inner cavity. The steel wire rope extends upward from the top of the box through the output end of the damping device, and the safety belt is fixed to the end of the steel wire rope extending from the top of the box. It also includes several guide components and fixing components that are pre-fixed to the upper and lower ends of the windows of each room wall. The box is provided with a connecting component that is connected to the fixing component to temporarily fix the box to the wall when used for escape, and a guide sliding device that is provided on the steel wire rope to pull the steel wire rope upward after the box is fixed and to assist the steel wire rope in connecting with the guide component to achieve synchronous limiting and sliding of the two.

2. The mobile emergency escape device for high-rise buildings according to claim 1, characterized in that: The wheel device includes two circular discs arranged in parallel opposite directions, with a cylinder for winding and storing steel wire rope connected between the two circular discs. A storage area for accommodating the wound steel wire rope is formed along the axial direction of the cylinder between the two circular discs. The cylinder is equipped with an elastic pre-tensioning device that tightens the wound steel wire rope when it is static and provides real-time constraint on the continuously released steel wire rope during use.

3. The mobile emergency escape device for high-rise buildings according to claim 2, characterized in that: The elastic pre-tightening device includes a fixed shaft arranged coaxially with the cylinder body inside the cylinder. The two ends of the fixed shaft extend outward and pass through the two circular discs and are fixed to the box body. An elastic friction constraint component is provided on the fixed shaft to apply an elastic constraint force to the two circular discs.

4. The mobile emergency escape device for high-rise buildings according to claim 3, characterized in that: The elastic friction constraint component includes a compression spring disposed at either end of a fixed shaft, and a blocking component disposed on the fixed shaft for compressing the compression spring and providing a continuous elastic force to the surface of the circular disc. A sleeve is disposed on the fixed shaft between the circular disc and the housing near the end of the compression spring, which provides elastic friction to the outer surface of the circular disc when the steel wire rope is pulled and drives the circular disc to rotate.

5. The mobile emergency escape device for high-rise buildings according to claim 1, characterized in that: The guiding component and the fixing component are metal safety rings fixed to the wall, and the connecting component is a first metal buckle that is connected and fixed to the fixing component during use.

6. The mobile emergency escape device for high-rise buildings according to claim 1, characterized in that: The guide sliding device includes a metal base, with a guide hole at one end of the metal base that allows a steel wire rope to pass through and slides with the steel wire rope, and a second metal buckle connected to the other end of the metal base that is quickly connected and fixed to the guide component.

7. The mobile emergency escape device for high-rise buildings according to claim 1, characterized in that: The enclosure contains several spare safety belts for multiple people to escape. These spare safety belts are adjustable self-locking buckles that can be directly fixed to steel wire ropes.

8. The mobile emergency escape device for high-rise buildings according to claim 7, characterized in that: The main body is provided with a secondary housing for storing spare seat belts. The secondary housing includes a shell with an inner opening on one side of the main body. The shell has several storage cavities for storing spare seat belts. The bottom of the shell is hinged to the main body. A locking pin is provided on the main body for opening and closing the secondary housing.

9. The mobile emergency escape device for high-rise buildings according to claim 4, characterized in that: An installation frame consisting of a top plate, a bottom plate, a front side plate, and a rear side plate is provided in the inner cavity of the box. Openings that allow the steel wire rope to extend are provided on the top plate and the top of the box. The wheel device and the damping device are fixed on the installation frame. The two ends of the fixed shaft extend outward and pass through the two circular discs and are fixed to the front side plate and the rear side plate, respectively. A sleeve is provided between the circular discs and the front side plate.

10. The mobile emergency escape device for high-rise buildings according to claim 1, characterized in that: The top of the enclosure is provided with a storage box for placing the protruding steel wire rope, safety belt and guide sliding device. The storage box includes a box body welded to the top of the enclosure and a cover for opening and closing the box body. The connecting component is fixed to the outer wall of the box body.

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