High-altitude emergency anti-falling device
The high-altitude emergency fall prevention device with integrated fall prevention and slow descent functions solves the problem that existing devices cannot stop in time in emergency situations, ensures the safety of high-altitude workers, provides dual operation modes of autonomous and remote control, and ensures efficient and safe landing.
Patent Information
- Application Number
- CN202422731312.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-08
AI Technical Summary
The existing slow-down device cannot stop the fall in time in an emergency situation of falling from a height, and cannot ensure the life safety of the workers working at height.
A high-altitude emergency fall prevention device has been designed, which integrates fall prevention and descent control functions. It is equipped with an electric telescopic rod, pulleys, universal bearings and self-lubricating bearings, and provides dual modes of autonomous operation and remote control. The descender is controlled by the electric telescopic rod and ground remote control.
It can stop in time in an emergency to ensure the safety of workers working at heights, provide a user-friendly operation interface, reduce operational complexity, and improve safety and reliability.
Smart Images

Figure CN223311558U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a high-altitude emergency anti-falling device, belonging to the technical field of anti-falling devices. Background Art
[0002] Fall arrest and descent control devices are crucial safety equipment for aerial work or emergency escape. These devices primarily fall into two categories: fall arresters and descenders, each with unique functions and application scenarios. A fall arrester, an essential safety device for aerial work, primarily protects workers from injury in the event of a fall. When a worker wearing a fall arrester works at height, it can quickly self-lock in the event of an accident, ensuring safety. This device is referred to differently in different regions, such as a speed differential controller or a speed differential, but its basic function and principle remain the same. Under normal operating conditions, the speed differential does not activate its locking mechanism. Instead, it comes into play when a worker suddenly accelerates or loses balance. In this situation, the internal pulley rapidly increases its rotational speed. Simultaneously, the pawls on either side are thrown out by centrifugal force, quickly engaging with the ratchet teeth and instantly braking the pulley. Under the weight of the person, the ratchet and pawl lock tightly, preventing further descent. Descending devices are primarily used for slowing descents during aerial work or for emergency escape. It typically consists of a hook, a sling, and a rope. The user uses the rope to drive the planetary gear reduction mechanism within the main unit, creating friction with the friction block within the friction wheel hub, ensuring a safe and gentle descent to the ground. The rope typically uses a high-grade aviation-grade steel wire rope core with a braided sheath, and is equipped with a safety belt at each end to ensure user safety. A descender can be installed in building windows, balconies, or rooftops. It can also be mounted on fire trucks to rescue victims from high-rise fires. Standard descenders are simple to install and use. Using a safety hook or auxiliary rope, they can be secured to an emergency window within a building or temporarily suspended from a fixed fixture on a window, balcony, or rooftop for a safe descent. In practice, the choice and combination of a fall arrester and descender often depends on the specific scenario. For example, in situations requiring prolonged suspended work, a fall arrester is preferred to ensure that the worker can quickly lock themselves in the event of an accident and avoid injury from a fall. In situations requiring emergency escape, a descender is preferred to ensure a safe and gentle descent to the ground. In general, fall arrest and descent control devices are crucial tools for ensuring safety during aerial work and emergency escape. When selecting and using these devices, factors such as the specific scenario, personnel needs, and safety standards should be fully considered to ensure they provide maximum protection. Furthermore, regular inspection and maintenance of the devices are essential to ensure they remain in good working order.
[0003] However, the existing slow-down device cannot stop in time when encountering an emergency such as falling from a height, cannot guarantee the life safety of the high-altitude workers, and is inconvenient for users to use. Utility Model Content
[0004] In order to solve the above problems existing in the prior art, the utility model provides a high-altitude emergency anti-falling device, which can stop the vehicle in time when encountering an emergency such as falling from a high altitude.
[0005] The technical solution of the utility model is as follows:
[0006] A high-altitude emergency fall prevention device includes a descender with a rope wrapped around it, a mounting plate installed on the back of the descender, a pulley movably installed on the front surface of the mounting plate, and the pulley abuts against the rope; an electric telescopic rod is fixedly installed on the front surface of the mounting plate, the telescopic end of the electric telescopic rod is connected to the control rod of the descender through a universal bearing, and a safety fixing buckle is installed at the bottom of the descender.
[0007] Among them, the descender includes a main body, a rotating rod is arranged on the side of the main body, the upper end of the rotating rod is installed on the mounting plate and the end of the control rod is fixedly connected to the upper end of the rotating rod, and the lower end of the rotating rod is installed on the bottom of the mounting plate through the rotating center axis; the rope is set through the rotating center axis.
[0008] Wherein, the lower end of the rotating rod is provided with a self-lubricating bearing and is connected to the rotating central axis through the self-lubricating bearing.
[0009] Wherein, a mechanical rope fixing point is fixedly provided on one side of the universal bearing.
[0010] Wherein, the material of the descender is stainless steel.
[0011] Wherein, the back of the mounting plate is integrated with the power module and the control module.
[0012] Wherein, the universal bearing is made of high-quality steel.
[0013] Wherein, the material adopted by the safety fixing buckle is aluminum alloy.
[0014] The utility model has the following beneficial effects:
[0015] This suspended anti-fall and descent control device integrates both anti-fall and descent functions, and is equipped with an advanced anti-panic mechanism. These detailed design features further enhance user safety. This control system offers dual operating modes: autonomous operation by aerial workers, enabling rapid response in emergencies; and remote control by ground-based safety personnel, ensuring immediate activation of the descent control function to ensure safety should workers become unable to operate autonomously. The device's user-friendly design features a simple, clear interface, ensuring users can quickly master and operate it correctly, even in tense or chaotic environments. The device's lightweight design ensures safety without burdening trained power distribution personnel. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the present invention;
[0017] Figure 2 It is a front view structural schematic diagram of the present invention;
[0018] Figure 3 It is a side structural schematic diagram of the present invention;
[0019] Figure 4 It is a schematic diagram of the top structure of the present invention.
[0020] The reference numerals in the figures are as follows:
[0021] 1. Descender; 101. Rope; 102. Control lever; 103. Rotating rod; 2. Mounting plate; 201. Pulley; 3. Electric telescopic rod; 301. Universal bearing; 302. Mechanical rope fixing point; 303. Self-lubricating bearing; 304. Safety buckle. DETAILED DESCRIPTION
[0022] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0023] See also Figures 1 to 4 , the utility model provides a technical solution:
[0024] A high-altitude emergency fall prevention device includes a descender 1, a rope 101 is wound around the descender 1, a mounting plate 2 is installed on the back of the descender 1, a pulley 201 is movably installed on the front surface of the mounting plate 2, and the pulley 201 abuts against the rope 101; an electric telescopic rod 3 is fixedly provided on the front surface of the mounting plate 2, and the telescopic end of the electric telescopic rod 3 is connected to the control rod 102 of the descender 1 through a universal bearing 301. The descender 1 here can also adopt an existing manual descender, etc., which can achieve the function of this case. A safety fixing buckle 304 is installed at the bottom of the descender 1; the telescopic end of the electric telescopic rod 3 is extended, thereby driving the control rod 102 of the descender 1 to move, and the force point can be changed by driving the electric telescopic rod 3 or the ground rope, so that the device can be descended from the fixed rope through the rotation of the self-lubricating bearing;
[0025] The descender 1 includes a main body, with a rotating rod 103 provided on the side of the main body. The upper end of the rotating rod 103 is rotatably mounted on the mounting plate 2, and the end of the control rod 102 is fixedly connected to the upper end of the rotating rod 103. The lower end of the rotating rod 103 is rotatably mounted on the bottom of the mounting plate 2 via a rotating central axis. The rotating central axis is the center of the device, and the force point is changed by the electric telescopic rod 3 or the ground rope 101; the rope 101 is set through the rotating central axis.
[0026] When the control rod 102 is pressed downward, the lower end of the rotating rod 103 is driven to tilt upward, which changes the force on the rope 101. The rope 101 is converted from a state of being compressed by human power to a state of being able to slide slowly.
[0027] The lower end of the rotating rod 103 is equipped with a self-lubricating bearing 303, which connects to the central axis of rotation. A mechanical rope fixing point 302 is fixed to one side of the universal bearing 301. The self-lubricating bearing 303 allows lubricant to be immersed in the sliding layer of the self-lubricating bearing 303. This lubricant can be liquid or solid, depending on the operating temperature. As the self-lubricating bearing 303 operates, the lubricant is released through the pores in the sliding layer, lubricating the bearing surface. This can extend the service life of the self-lubricating bearing 303, making it highly practical and user-friendly.
[0028] The material of the descender 1 is stainless steel. By setting the descender body 1 made of stainless steel, it has high strength, can withstand large loads, is easy to process, has strong practicality, and is convenient for users to use.
[0029] The power module and control module are integrated into the back of the mounting plate 2. In this embodiment, the mounting plate 2 allows operators to operate the system autonomously, enabling quick response in emergencies. Furthermore, ground safety personnel can remotely control the system, ensuring that the descent control function can be activated immediately if the operator becomes unable to operate autonomously.
[0030] Universal bearing 301 is constructed from high-quality steel. In this embodiment, universal bearing 301 exhibits excellent strength and hardness, enabling it to withstand significant loads and torque. High-quality steel also has a wide operating temperature range, maintaining excellent performance in both high and low-temperature environments. Furthermore, the alloyed structure of the high-quality steel offers exceptional wear resistance and durability. This ensures optimal performance of universal bearing 301 within the mechanical transmission system, extending its service life and improving the stability and reliability of the entire system.
[0031] The material used for the safety fixing buckle 304 is aluminum alloy; by setting the safety fixing buckle 304, it is made of aluminum alloy, has light weight, high strength, good corrosion resistance and heat resistance, is highly practical, and is easy for users to use.
[0032] The working principle of the above-mentioned high-altitude emergency fall prevention device is as follows:
[0033] During use, the first operator climbs to the top of the tower and hangs the mechanical and electronically controlled integrated descender to the angle iron of the tower. The training personnel perform the climbing operation normally through the anti-fall differential and five-point safety belt below. Once the worker may fall into a coma, the self-locking device uses the eccentric cam braking principle to immediately self-lock when the person suddenly falls rapidly, thereby preventing the body from continuing to fall. At this time, the operator will be suspended in mid-air. At that time, the ground personnel can use the rope 101 on the descender or use remote intervention to control the descender to lower the operator to the ground for first aid. The main body 1 of the mechanical and electronically controlled integrated descender is made of stainless steel, which has high strength, can withstand large loads, and is easy to process. The inner wall of the descender can be used in conjunction with the safety rope 101. When the lower hanging is under stress, the device will automatically lock and hang on the safety rope. The outer side is provided with a self-lubricating bearing 303. When it is necessary to descend, the ground personnel pull the rope 101, and the force point of the descender changes to the self-lubricating bearing 303, thereby driving the operator to descend. If the on-site environmental factors make it impossible for the ground personnel to pull the rope 101 to perform the descending operation, the remote control can intervene to drive the descender to operate. The electric control system consists of an electric telescopic rod 3, a pulley 201, a control system, a power supply, and a remote control system. The main body of the electric control system is fixed to the safety rope 101. When the ground personnel receive the remote control command, the control system sends a control command to the drive, and the telescopic drive head is fixed to the descender to generate downward pressure, thereby realizing the descending operation. When the device descends on the rope 101, the downward pulling force of the descender drives the pulley 201 to descend.
[0034] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A high-altitude emergency anti-fall device, comprising a descender (1), characterized in that: A rope (101) is wound around the descender (1), a mounting plate (2) is installed on the back of the descender (1), a pulley (201) is movably installed on the front surface of the mounting plate (2), and the pulley (201) is in contact with the rope (101); an electric telescopic rod (3) is fixedly installed on the front surface of the mounting plate (2), and the telescopic end of the electric telescopic rod (3) is connected to the control rod (102) of the descender (1) through a universal bearing (301), and a safety fixing buckle (304) is installed on the bottom of the descender (1).
2. A high altitude emergency fall prevention device according to claim 1, characterized in that: The descender (1) comprises a main body, a rotating rod (103) is arranged on the side of the main body, the upper end of the rotating rod (103) is mounted on the mounting plate (2), and the end of the control rod (102) is fixedly connected to the upper end of the rotating rod (103), and the lower end of the rotating rod (103) is mounted on the bottom of the mounting plate (2) through a rotating center axis; the rope (101) is arranged to pass through the rotating center axis.
3. A high altitude emergency fall prevention device according to claim 2, characterized in that: The lower end of the rotating rod (103) is provided with a self-lubricating bearing (303) and is connected to the rotating central axis through the self-lubricating bearing (303).
4. A high altitude emergency fall prevention device according to claim 1, characterized in that: A mechanical rope fixing point (302) is fixedly provided on one side of the universal bearing (301).
5. The high-altitude emergency fall prevention device according to claim 1, characterized in that: The material used for the descender (1) is stainless steel.
6. The high-altitude emergency fall prevention device according to claim 1, characterized in that: The back of the mounting fixing plate (2) is integrated with the power module and the control module.
7. The high-altitude emergency fall prevention device according to claim 1, characterized in that: The universal bearing (301) is made of high-quality steel.
8. The high-altitude emergency fall prevention device according to claim 1, characterized in that: The material used for the safety fixing buckle (304) is aluminum alloy.