Search

CN-122009492-A - Helicopter rescue stable lifting platform

CN122009492ACN 122009492 ACN122009492 ACN 122009492ACN-122009492-A

Abstract

The invention relates to the field of aviation emergency rescue equipment, and particularly discloses a helicopter rescue stable lifting platform which comprises a direction adjusting mechanism, a vibration damping mechanism and a rescue mechanism. The rescue mechanism is provided with a safety net bag which can be unfolded and contracted, can automatically wrap the person to be rescued, and the direction-adjusting mechanism releases air flow to assist in fire extinguishment when in fire disaster through a plurality of propellers. The platform improves rescue safety and environmental adaptability.

Inventors

  • WANG JINLING
  • WANG BIN
  • MA JING
  • ZHU GUONING
  • GONG ZHUYUN
  • LI NA

Assignees

  • 中国人民解放军总医院第二医学中心

Dates

Publication Date
20260512
Application Date
20260228

Claims (10)

  1. 1. The helicopter rescue stable lifting platform comprises a direction adjusting mechanism (1), a vibration damping mechanism (2) and a rescue mechanism (3), and is characterized in that, The rescue mechanism (3) comprises a rescue platform (31), wherein a sliding rod (32) is arranged at the top of the rescue platform (31), lifting sliding blocks (33) are connected to the sliding rod (32) in a sliding mode, the side faces of the lifting sliding blocks are rotatably connected with a plurality of first connecting rods (34), the other ends of the first connecting rods (34) are rotatably connected with first sliding blocks (35), and the first sliding blocks (35) are connected to a contraction rod (36) in a sliding mode; a safety net bag (37) is arranged between the bottom of the contraction rod (36) and the rescue platform (31) and between the contraction rods (36) and the adjacent contraction rod, and a net mouth (371) is arranged on the safety net bag (37); when the lifting slide block (33) slides upwards, the safety net bag (37) is driven to be unfolded for the entry of the person to be saved, and when the lifting slide block (33) slides downwards, the safety net bag (37) is driven to shrink and wrap the person to be saved, so that the person to be saved is prevented from falling.
  2. 2. The helicopter rescue stable lifting platform as claimed in claim 1, wherein a motor assembly (38) is arranged at the top of the sliding rod (32), the motor assembly (38) drives the lifting slide block (33) to move along the sliding rod (32) through a first driving rod (381), and the motor assembly (38) is rotationally connected with the contraction rod (36).
  3. 3. The helicopter rescue stable lifting platform according to claim 1, wherein the vibration damping mechanism (2) comprises a ball cage universal joint (21) and a vibration damping portion (22), the vibration damping portion (22) comprises a shell (221) and a bearing plate (222), the shell (221) is slidably connected with the bearing plate (222), and a compression spring (223) is arranged between the bottom of the bearing plate (222) and the bottom of the shell (221).
  4. 4. The helicopter rescue stable lifting platform according to claim 1, wherein the direction adjusting mechanism (1) comprises at least four propellers (11), a water tank (6) is arranged at the top of the direction adjusting mechanism (1), a plurality of water outlets (61) are arranged on the periphery of the water tank (6), water inlets (64) are arranged on the side edges of the bottom of the water tank (6) and are connected with a water pipe (65), the water pipe (65) is connected with a water supply device on the helicopter, a water pump is arranged on the water supply device, water is supplied by the water pump through adjusting a pump pressure, so that the water flowing out of the water tank is adjusted, and under a fire rescue scene, the water flowing out of the water outlets (61) can be blown away by air flow generated by the propellers (11) and spread to a fire scene area, so that auxiliary fire extinguishing is realized.
  5. 5. The helicopter rescue stable lifting platform of claim 4, wherein the top of the direction adjusting mechanism (1) is provided with a clamping pin (12), the center of the water tank (6) is provided with a through hole (63), and the bottom is provided with a clamping groove (62) to be jointed with the clamping pin (12).
  6. 6. The helicopter rescue stable lifting platform according to claim 4 is characterized in that a round hole (13) is formed in the top of the direction adjusting mechanism (1) and used for placing a rotating motor assembly (4), the rotating motor assembly (4) is fixedly connected with the direction adjusting mechanism (1) through a second driving rod (41), and a concave table (14) is arranged in the round hole (13) and used for placing the second driving rod (41).
  7. 7. The helicopter rescue stable lifting platform according to claim 6, wherein a first bearing (51) is installed between the rotating motor assembly (4) and the steering mechanism (1), and a second bearing (52) is installed between the second driving rod (41) and the steering mechanism (1).
  8. 8. The stabilized lift platform of claim 6, further comprising a control unit configured to perform directional fire extinguishing operations, comprising: receiving a fire azimuth signal; controlling the rotating motor assembly (4) to drive the direction adjusting mechanism (1) to rotate, so that one side surface of the direction adjusting mechanism (1) provided with the water outlet (61) is aligned with the fire disaster direction; Opening at least one of said water outlets (61) of the alignment side; And starting the aligning side propeller (11) to enable the generated airflow to blow the water body flowing out of the aligning side water outlet (61) to the fire scene.
  9. 9. The helicopter rescue stable lifting platform according to claim 4, wherein the water tank (6) comprises a main body box (69) and a floating shell (66) which is arranged above the main body box (69) in a floating manner, the bottom of the floating shell (66) is communicated with the inside of the main body box (69), an annular air bag (67) is arranged on the outer wall of the bottom of the floating shell (66), an overflow port (661) is formed in the side wall of the floating shell (66), and a tension spring (68) is connected between the top edge of the floating shell (66) and the main body box (69); When the main body tank (69) is filled with water and is in an initial state of being free from external pressure, the tension spring (68) is in a natural tension state, and the overflow port (661) is positioned in the main body tank (69); When the external water pipe is filled into the main body box (69) and the internal pressure of the main body box is increased, the buoyancy generated by the impact of the water flow on the annular air bag (67) is larger than the initial tension of the tension spring (68), the floating shell (66) floats upwards, and the overflow port (661) is exposed out of the main body box (69); The top of the shell of the main body box (69) is provided with a drainage groove (651) for guiding water flowing out of the overflow port (661).
  10. 10. The stabilized lift platform for helicopter rescue of claim 9 further comprising a control unit; a vent is arranged on the annular air bag (67), and a hydrophobic membrane is arranged in the vent and is configured to allow gas to pass through and prevent liquid from passing through; the air release port is provided with a micro air pump for controlling the opening and closing of the air release port, and the micro air pump is in signal connection with the control unit; The air release port and the micro air pump are configured to regulate the actual floating height of the floating shell (66) in the water injection pressurizing process by controlling the discharge amount of air in the annular air bag (67) so that the overflow port (661) is just exposed outside the main body box (69), thereby limiting the floating stroke of the floating shell (66) and preventing the tension spring (68) from being damaged due to over-tension.

Description

Helicopter rescue stable lifting platform Technical Field The invention relates to the field of aviation emergency rescue equipment, and particularly discloses a helicopter rescue stable lifting platform. Background Helicopter rescue is taken as an important component of an aviation emergency rescue system, and plays a key role in executing rapid personnel transfer tasks under complex dangerous environments such as mountain, offshore, high-rise building fires and the like. However, conventional rescue equipment and operation methods still face many limitations in practical applications. The existing rescue platform or hanging basket mostly adopts a rigid or simple hinged structure, lacks effective multidimensional buffering and gesture self-adaptation capability, and is easy to generate obvious shaking and vibration due to the influence of rotor wing disturbance, high-altitude crosswind and load change in the hovering and lifting processes of the helicopter. The risk of instability and falling of the rescued personnel when standing or riding on the platform is increased, difficulty is brought to the operation of the rescued personnel, and rescue efficiency and safety are affected. Meanwhile, the automation and intelligent degree of the existing device is low, the personnel fixing is dependent on the self-grasping of a rescuee or the auxiliary tying of a rescuer, and the operation is time-consuming and the reliability is limited in a tension and shaking environment. In addition, the traditional equipment has single function and lacks the capability of actively coping with special dangerous environments such as fire and the like. In rescue scenes with open fire, high temperature and dense smoke, the platform cannot perform local fire suppression or heat radiation isolation while personnel transfer is performed, so that both rescue parties are exposed to higher risks. Even if some devices attempt to integrate the fire extinguishing function, the devices are often limited by the problems of limited capacity of self-carrying fire extinguishing agents, heavy devices, difficulty in realizing continuous operation and the like, and the actual combat effectiveness of the devices in a real fire scene environment is limited. In general, the existing helicopter rescue platform still has obvious defects in the aspects of dynamic stability, operation convenience, environmental adaptability, function expansibility and the like. Therefore, development of a comprehensive and intelligent rescue lifting platform integrating rapid personnel wrapping, intelligent buffering and posture adjustment and sustainable auxiliary fire extinguishing is needed, so that overall safety, operation efficiency and task adaptability of helicopter rescue in a complex environment are comprehensively improved. Disclosure of Invention This patent aims at providing a helicopter rescue lift platform of supplementary fire extinguishing function of integrated automatic personnel parcel, multidirectional buffering and expandable to promote the security, the efficiency and the complex environment adaptability of rescue process. A helicopter rescue stable lifting platform, which comprises a direction adjusting mechanism, a vibration damping mechanism and a rescue mechanism, The rescue mechanism comprises a rescue platform, a lifting sliding block, a plurality of first connecting rods, a first sliding block, a second sliding block, a first locking mechanism and a second locking mechanism, wherein the top of the rescue platform is provided with a sliding rod; A safety net bag is arranged between the bottom of the contraction rod and the rescue platform and between the contraction rods and the adjacent contraction rods, and is provided with net openings; When the lifting slide block slides upwards, the safety net bag is driven to be unfolded for the entry of the person to be saved, and when the lifting slide block slides downwards, the safety net bag is driven to shrink and wrap the person to be saved, so that the person to be saved is prevented from falling. The mechanical expansion and contraction mechanism linked by the lifting slide block, the connecting rod, the slide block and the contraction rod is arranged, and the safety net bag integrated between the mechanical expansion and contraction mechanism and the mechanical expansion and contraction mechanism is matched, so that the expansion and the package of the net bag can be actively realized in the rescue process. The design effectively ensures the stable support of the rescued personnel on the rescue platform, and obviously reduces the falling risk caused by shaking of the platform or instability of the personnel under unstable environments such as wind disturbance. The safety belt device is fixed on the rescue platform, and the safety belt can be fastened and fixed with the waist when the person to be rescued stands on the platform. The rescue mechanism can synchronously control the state switching o