Helicopter rescue winch system and method of use thereof

Abstract

The application discloses a helicopter lifesaving winch system and a use method thereof, relates to the field of helicopter lifesaving, and comprises two supporting blocks one, two supporting blocks two are fixed on the supporting blocks one, a winding roller is rotationally connected between the two supporting blocks two, a winding motor is fixed on one of the supporting blocks two, a climbing soft ladder is arranged on the winding roller, supporting mechanisms are arranged on the two supporting blocks one, a stabilizing mechanism is arranged on the supporting mechanism, and the climbing soft ladder corresponds to the stabilizing mechanism. The climbing soft ladder falls on the winding roller, and the climbing soft ladder slowly falls under the limitation of the stabilizing mechanism; meanwhile, the supporting mechanism slowly leads the stabilizing mechanism away from the body of the helicopter, so that the climbing soft ladder passing through the stabilizing mechanism and the body of the helicopter keep a certain distance, the stability of the climbing soft ladder in use is improved, and the possibility that a user bumps against the body of the helicopter on the climbing soft ladder is reduced.

Description

Technical Field

[0001] This application relates to the field of helicopter rescue, and in particular to helicopter rescue winch systems and methods of using them. Background Technology

[0002] A helicopter is an aircraft that relies on an engine to drive a rotor to generate lift, longitudinal and lateral thrust, and control torque, enabling it to take off and land vertically. The outstanding feature of helicopters is that they can perform low-altitude, low-speed maneuvering with a constant nose direction, especially vertical takeoff and landing in small areas. Due to these characteristics, they have a wide range of uses and development prospects. Utilizing these characteristics, helicopters often play a very important role in rescue operations.

[0003] When performing rescue missions, existing helicopters play a specific role depending on the needs of the rescue. In some rescue and transfer operations using helicopters, it is common to use helicopters to transfer trapped people in a certain area. When the rescue area cannot meet the needs of helicopter landing, it is necessary to hover the helicopter in mid-air, and then rescuers use a winch to directly place the rescue ladder to the ground, and enter the hovering helicopter through the ladder.

[0004] In existing helicopter rescue operations, when using climbing ladders, ordinary climbing ladders and winches are mostly welded directly to the helicopter wall. During the helicopter's high-altitude operation, the ladder is lowered directly from the helicopter wall. During the descent, the climbing ladder may be unstable because it is only supported and restrained by the winch at a fixed point. Summary of the Invention

[0005] The purpose of this application is to address the problem that, as mentioned in the background art, most ordinary climbing ladders and winches are directly welded to the fuselage of helicopters. During the high-altitude operation of helicopters, the ladders are lowered directly from the fuselage. During the lowering process, the ladders may be unstable because they are only supported and restrained by the winches at fixed points. This application provides a helicopter rescue winch system and its usage method.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] A helicopter rescue winch system and its usage method include two support blocks 1, which are fixed to the outer shell of the helicopter. Support blocks 2 are fixed to the two support blocks 1. A winding roller is rotatably connected between the two support blocks 2. A winding motor is fixed to one of the support blocks 2. The output end of the winding motor passes through the corresponding support block 2 and is fixedly connected to the winding roller. A climbing ladder is provided on the winding roller, one end of which is fixedly connected to the winding roller. A support mechanism is provided on the two support blocks 1, and a stabilizing mechanism is provided on the support mechanism. The climbing ladder corresponds to the stabilizing mechanism.

[0008] By adopting the above technical solution, the climbing ladder wound on the take-up roller falls off the take-up roller. Under the restraint of the stabilizing mechanism, the climbing ladder slowly falls. At the same time as the climbing ladder falls, the supporting mechanism slowly brings the stabilizing mechanism away from the helicopter fuselage, so that the climbing ladder passing through the stabilizing mechanism and the helicopter fuselage maintain a certain distance. When the climbing ladder is wound up, the stabilizing mechanism on the supporting mechanism slowly moves and moves closer to the helicopter fuselage. This allows the climbing ladder to be easily put down and taken up on the helicopter, while improving the stability of the climbing ladder during use and reducing the possibility of the climbing ladder getting too close to the helicopter fuselage and the user bumping into the helicopter fuselage.

[0009] Furthermore, the stabilizing mechanism includes a stabilizing rectangular frame, the inner wall of which is rotatably connected to four symmetrically arranged support rollers in pairs. Clamping straps are drivenly connected to the upper and lower support rollers. The climbing ladder passes between the two clamping straps. A locking component is provided on one side of the stabilizing rectangular frame. A drive motor is fixed on one side of the stabilizing rectangular frame. The output end of the drive motor passes through the stabilizing rectangular frame and is fixedly connected to one of the support rollers.

[0010] By adopting the above technical solution, the climbing rope ladder falls between two clamping straps on a stable rectangular frame. The two clamping straps move under the support of corresponding support rollers, and the clamping straps restrict the falling climbing rope ladder, thereby improving the stability of the climbing rope ladder during use.

[0011] Furthermore, the locking assembly includes a rotating shaft that passes through a stable rectangular frame. The rotating shaft is fixedly connected to one of the support rollers. A sliding rod is slidably connected to the rotating shaft, and the sliding rod is perpendicular to the rotating shaft. A locking block is fixed to one end of the sliding rod. A locking ring is provided on the rotating shaft and is fixedly connected to the stable rectangular frame. Both the locking block and the locking ring have locking teeth. The locking teeth on the locking block and the locking teeth on the locking ring face opposite directions and correspond to each other. A spring is provided at the end of the sliding rod away from the locking block. One end of the spring is fixedly connected to the sliding rod, and the other end of the spring is fixedly connected to the rotating shaft.

[0012] By adopting the above technical solution, when the climbing ladder falls too fast, the corresponding support roller drives the rotating shaft to rotate, and the rotating shaft drives the sliding rod to rotate. When the rotating shaft rotates too fast, the locking block moves closer to the locking ring, and then the locking block and the locking ring are locked together. The corresponding support roller stops rotating, and the clamping belt on the support roller restricts the falling climbing ladder, thereby causing friction between the climbing ladder and the clamping belt and reducing the falling speed of the climbing frame.

[0013] Furthermore, each of the two clamping straps is provided with a flexible rubber pad, and the flexible rubber pad is fixedly connected to the corresponding clamping strap.

[0014] By adopting the above technical solution, the climbing ladder passing between the two clamping straps is wrapped with a flexible rubber pad, thereby reducing the possibility of slippage between the climbing ladder and the clamping straps when the climbing ladder passes between the two clamping straps.

[0015] Furthermore, a counterweight is provided at the end of the climbing ladder away from the take-up roller, and the counterweight is fixedly connected to the climbing ladder.

[0016] By adopting the above technical solution, a counterweight of a certain weight is directly fixed to the end of the climbing ladder away from the take-up roller, which allows the climbing ladder to pass stably between the two clamping belts, while reducing the impact of strong winds on the climbing ladder.

[0017] Furthermore, the support mechanism includes two symmetrical connecting blocks, which are fixedly connected to a stable rectangular frame. A movable rod is fixed on each connecting block, with one end of the movable rod fixedly connected to one of the connecting blocks. Two symmetrical support wheels are rotatably connected to each connecting block. Movable grooves are provided on both sides of the movable rod, and the support wheels correspond to the movable grooves.

[0018] By adopting the above technical solution, when the stable rectangular frame is moved, the connecting block on the stable rectangular frame moves on the moving rod under the support of the support wheel, thereby enabling the climbing rope ladder passing through the stable rectangular frame to control the distance between itself and the helicopter shell.

[0019] Furthermore, a rack is fixed to one of the moving rods, a gear meshes with the rack, a connecting shaft is fixed to the gear, the connecting shaft is rotatably connected to a corresponding connecting block, the connecting shaft passes through the stable rectangular frame, and the connecting shaft is fixedly connected to one of the support rollers.

[0020] By adopting the above technical solution, when the support roller rotates, the support roller drives the connecting shaft, the connecting shaft drives the gear to rotate, and the gear moves on the rack. With the assistance of the gear and rack, the climbing rope ladder keeps the stable rectangular frame away from the helicopter when it falls, so that the climbing rope ladder can be kept away from the helicopter when in use, reducing the risk of users bumping into the helicopter when using the climbing rope ladder.

[0021] A helicopter rescue winch system and its method of use, wherein the method of use applies to any of the helicopter rescue winch systems described above, and the method of use is as follows:

[0022] S1: When using this winch system for rescue, first determine the area that needs to be rescued, and then hover the helicopter over the area that needs to be rescued.

[0023] S2: After the helicopter is hovered stably, the operator directly controls the rewind motor to lower the climbing ladder from the helicopter.

[0024] S3: After securing themselves with safety ropes, rescuers descend to the ground via a climbing ladder supported by clamps and a stable rectangular frame to carry out rescue operations.

[0025] S4: After the rescue operation is completed, the rescuers climb directly from the rope ladder into the hovering helicopter to complete the rescue operation.

[0026] S5: After the rescue operation is completed, the released climbing ladder is retrieved directly using the rewind motor, and then the person leaves the hovering area.

[0027] In summary, this application includes at least one of the following beneficial effects;

[0028] 1. This application describes a climbing ladder wound on a take-up roller that falls off the roller under the pull of a counterweight. During the descent, the climbing ladder falls between two clamping straps on a stabilizing rectangular frame. The two clamping straps move under the support of corresponding support rollers. The rotation of the corresponding support rollers drives the connecting shaft, which in turn drives the gear to rotate. The gear moves on a rack. With the assistance of the gear and rack, the climbing ladder moves away from the stabilizing rectangular frame from the helicopter during its descent. This achieves greater stability for the climbing ladder under the clamping of the two straps during its descent. At the same time, the descent drives the support rollers of the clamping straps, causing the gear to rotate on the rack, keeping the climbing ladder away from the helicopter fuselage and reducing the possibility of the climbing ladder hitting the fuselage during use.

[0029] 2. In this application, when the rotating shaft rotates too fast, the centrifugal force of the locking block on the sliding rod exceeds the supporting force of the spring at the other end of the sliding rod. The locking block moves closer to the locking ring, and then the locking block and the locking ring are locked together, preventing the rotating shaft from rotating. When the rotating shaft is restricted, the corresponding support roller stops rotating, thereby reducing the occurrence of excessively fast descent when the climbing rope ladder is falling.

[0030] 3. In this application, by fixing a flexible rubber pad of a certain thickness on the clamping strap, the climbing ladder passing between the two clamping straps is wrapped by the flexible rubber pad, so that when the climbing ladder passes through the clamping strap, the climbing ladder can drive the clamping strap to move, thereby reducing the possibility of slippage between the clamping strap and the climbing ladder. Attached Figure Description

[0031] Figure 1 This is a first three-dimensional structural schematic diagram of the winch rescue system in this application;

[0032] Figure 2 This is a second three-dimensional structural diagram of the winch rescue system in this application;

[0033] Figure 3 This is a schematic diagram of the third three-dimensional structure of the winch rescue system in this application;

[0034] Figure 4 This is a schematic diagram of the fourth three-dimensional structure of the winch rescue system in this application;

[0035] Figure 5 This application Figure 2 Enlarged view of point A in the middle;

[0036] Figure 6 This application Figure 2 Enlarged view of point B in the middle;

[0037] Figure 7 This is a schematic diagram illustrating the usage method of this application.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. Support block one; 2. Support block two; 3. Take-up roller; 4. Take-up motor; 5. Climbing ladder; 6. Stabilizing mechanism; 61. Stabilizing rectangular frame; 62. Support roller; 63. Clamping belt; 64. Locking assembly; 641. Rotating shaft; 642. Sliding rod; 643. Locking block; 644. Locking ring; 65. Flexible rubber pad; 7. Support mechanism; 71. Connecting block; 72. Moving rod; 73. Support wheel; 74. Connecting shaft; 75. Gear; 76. Rack; 8. Counterweight. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1 —7 provides further details regarding this application.

[0041] This application discloses a helicopter rescue winch system and its usage method.

[0042] Reference Figure 1 , Figure 2 and Figure 3The helicopter rescue winch system includes two support blocks 1, which are fixed to the outer shell of the helicopter. Support blocks 2 are fixed to the two support blocks 1. A take-up roller 3 is rotatably connected between the two support blocks 2. A take-up motor 4 is fixed to one of the support blocks 2. The output end of the take-up motor 4 passes through the corresponding support block 2 and is fixedly connected to the take-up roller 3. A climbing ladder 5 is provided on the take-up roller 3. One end of the climbing ladder 5 is fixedly connected to the take-up roller 3. A support mechanism 7 is provided on the two support blocks 1. A stabilizing mechanism 6 is provided on the support mechanism 7. The climbing ladder 5 corresponds to the stabilizing mechanism 6. When this rescue winch system is needed, first determine the location requiring rescue. Then, the helicopter pilot hovers the helicopter at the rescue position. Rescuers then control the take-up motor 4 to lower the climbing ladder 5, which is wound onto the take-up roller 3. The climbing ladder 5 descends slowly under the restraint of the stabilizing mechanism 6. Simultaneously, the support mechanism 7 slowly pulls the stabilizing mechanism 6 away from the helicopter fuselage, maintaining a certain distance between the climbing ladder 5 (which passes through the stabilizing mechanism 6) and the helicopter fuselage. Rescuers then use the climbing ladder 5 to move to the ground to carry out the rescue operation. After the rescue operation is completed, rescuers directly use the climbing ladder 5 to move back to the helicopter. Then, the rescue personnel control the rewind motor 4 to rewind the climbing ladder 5 onto the rewind roller 3. While the climbing ladder 5 is being rewound, the stabilizing mechanism 6 on the support mechanism 7 slowly moves and approaches the helicopter fuselage. As the climbing ladder 5 is lowered from the rewind roller 3, the stabilizing mechanism 6 restricts the falling direction of the climbing ladder 5. At the same time, the stabilizing mechanism 6, supported by the support mechanism 7, slowly moves away from the helicopter fuselage. This allows the climbing ladder 5 to be easily lowered and retracted on the helicopter, while improving the stability of the climbing ladder 5 during use and reducing the possibility of the climbing ladder 5 getting too close to the helicopter fuselage and the user bumping into the helicopter fuselage.

[0043] Reference Figure 2 , Figure 3 and Figure 5The stabilizing mechanism 6 includes a stabilizing rectangular frame 61. Four support rollers 62, arranged symmetrically in pairs, are rotatably connected to the inner wall of the stabilizing rectangular frame 61. Clamping belts 63 are driven to the upper and lower support rollers 62. The climbing ladder 5 passes between the two clamping belts 63. A locking component 64 is provided on one side of the stabilizing rectangular frame 61. A drive motor is fixed on one side of the stabilizing rectangular frame 61. The output end of the drive motor passes through the stabilizing rectangular frame 61 and is fixedly connected to one of the support rollers 62. When the climbing ladder 5 is lowered from the take-up roller 3, it falls between the two clamping straps 63 on the stabilizing rectangular frame 61. The drive motor drives the corresponding support roller 62 to rotate, and the two clamping straps 63 move under the support of the corresponding support roller 62. The clamping straps 63 carry the climbing ladder 5 down and restrict the falling climbing ladder 5. When the climbing ladder 5 falls too fast, the locking component 64 on the stabilizing rectangular frame 61 restricts the climbing ladder 5. By allowing the climbing ladder 5 to pass between the two clamping straps 63, the two clamping straps 63 restrict the climbing ladder 5, allowing the climbing ladder 5 to fall slowly under the restriction, thereby improving the stability of the climbing ladder 5 during use.

[0044] Reference Figure 2 and Figure 5The locking assembly 64 includes a rotating shaft 641 that passes through a stable rectangular frame 61. The rotating shaft 641 is fixedly connected to one of the support rollers 62. A sliding rod 642 is slidably connected to the rotating shaft 641. The sliding rod 642 is perpendicular to the rotating shaft 641. A locking block 643 is fixed to one end of the sliding rod 642. A locking ring 644 is provided on the rotating shaft 641 and is fixedly connected to the stable rectangular frame 61. Locking teeth are provided on both the locking block 643 and the locking ring 644. The locking teeth on the locking block 643 and the locking teeth on the locking ring 644 face opposite directions and correspond to each other. A spring is provided at the end of the sliding rod 642 away from the locking block 643. One end of the spring is fixedly connected to the sliding rod 642, and the other end of the spring is fixedly connected to the rotating shaft 641. When the climbing ladder 5 descends, it can be partially extended first, allowing rescuers to stand directly on it before descending together. To ensure the rescuers' safety during the descent, if the climbing ladder 5 descends too quickly, the corresponding support roller 62 drives the rotating shaft 641 to rotate. The rotating shaft 641 then drives the sliding rod 642 to rotate. When the rotating shaft 641 rotates too quickly, the centrifugal force of the locking block 643 on the sliding rod 642 exceeds the supporting force of the spring at the other end of the sliding rod 642. The locking block 643 moves closer to the locking ring 644, and then the locking block 643 and the locking ring 644 lock together, preventing the rotating shaft 641 from rotating. When the rotating shaft 641 is restricted, the corresponding support roller 62 stops rotating, allowing the clamping belt 63 on the support roller 62 to restrict the falling climbing ladder 5. When the climbing ladder 5 is rolled up, the corresponding support roller 62 rotates in the opposite direction with the rotating shaft 641. When the rotating shaft 641 rotates with the locking block 643, the locking teeth on the locking block 643 cannot engage with the locking teeth on the locking ring 644, ensuring that there is no speed limit when rolling up the climbing ladder 5. By using the centrifugal force generated when the locking block 643 rotates and then engages with the locking ring 644, the support roller 62 cannot rotate, thereby causing friction between the climbing ladder 5 and the clamping belt 63, reducing the falling speed of the climbing frame.

[0045] Reference Figure 1 , Figure 2 and Figure 3 Each of the two clamping straps 63 is equipped with a flexible rubber pad 65, which is fixedly connected to the corresponding clamping strap 63. A flexible rubber pad 65 of a certain thickness is fixed to the clamping strap 63. The climbing ladder 5 passing between the two clamping straps 63 is wrapped by the flexible rubber pad 65, allowing the climbing ladder 5 to move the clamping straps 63 as it passes through them. By fixing the flexible rubber pad 65 to the clamping straps 63, the possibility of slippage between the climbing ladder 5 and the clamping straps 63 when passing between them is reduced.

[0046] Reference Figure 1 , Figure 2 and Figure 3 A counterweight 8 is provided at the end of the climbing ladder 5 away from the take-up roller 3, and the counterweight 8 is fixedly connected to the climbing ladder 5. The counterweight 8, with a certain weight, is directly fixed to the end of the climbing ladder 5 away from the take-up roller 3. When the climbing ladder 5 falls, it allows the climbing ladder 5 to fall while being held between the two clamping straps 63, and reduces the large-scale swaying of the climbing ladder 5 in windy conditions. Simultaneously, when the climbing ladder 5 is retracted, the counterweight 8 prevents the climbing ladder 5 from detaching from the two clamping straps 63. By using the pull of the counterweight 8, the climbing ladder 5 can stably pass between the two clamping straps 63, while reducing the impact of strong winds on the climbing ladder 5.

[0047] Reference Figure 2 , Figure 4 and Figure 6 The support mechanism 7 includes two symmetrical connecting blocks 71, which are fixedly connected to the stable rectangular frame 61. A movable rod 72 is fixedly mounted on each connecting block 71, with one end of the rod fixedly connected to one end of the connecting block 71. Two symmetrical support wheels 73 are rotatably connected to each connecting block 71. Movable slots are provided on both sides of the movable rod 72, and the support wheels 73 correspond to these slots. The stable rectangular frame 61 rests on the movable rod 72 with the support of the two connecting blocks 71. The support wheels 73 on the connecting blocks 71 clamp the movable rod 72. When the stable rectangular frame 61 is moved, the connecting blocks 71 on the stable rectangular frame 61 move on the movable rod 72 with the support of the support wheels 73. By allowing the stable rectangular frame 61 to move with the cooperation of the support wheels 73 and the movable rod 72, the distance between the climbing ladder 5 passing through the stable rectangular frame 61 and the helicopter shell can be controlled.

[0048] Reference Figure 2 and Figure 6One of the moving rods 72 has a rack 76 fixed to it, a gear 75 meshing with it, and a connecting shaft 74 fixed to it. The connecting shaft 74 is rotatably connected to a corresponding connecting block 71. The connecting shaft 74 passes through the stabilizing rectangular frame 61 and is fixedly connected to one of the support rollers 62. When the climbing ladder 5 is released under the grip of the two clamping straps 63, the drive motor drives the corresponding support roller 62 to rotate, which in turn moves the clamping straps 63 and lowers the climbing ladder 5. When the support roller 62 rotates, it drives the connecting shaft 74, which in turn drives the gear 75 to rotate. The gear 75 moves on the rack 76. With the assistance of the gear 75 and the rack 76, the climbing ladder 5 moves away from the stabilizing rectangular frame 61 as it descends. When the climbing ladder 5 is retracted and not in use, the drive motor drives the corresponding support roller 62 to reverse, and the clamping straps 63, along with the support rollers 62 corresponding to the rotating shaft 641, move in opposite directions. The support roller 62 reverses, and the rotating shaft 641 reverses along with the locking block 643. The locking block 643 cannot be engaged with the locking ring 644. There is no speed limit on the climbing ladder 5 during winding. At the same time, the support roller 62 corresponding to the gear 75 reverses along with the gear 75. The gear 75 moves towards the helicopter on the rack 76 to retract. By utilizing the cooperation of the gear 75 and the rack 76, the climbing ladder 5 is moved away from the helicopter when falling and closer to the helicopter when rising and storing. This allows the climbing ladder 5 to be kept away from the helicopter during use, reducing the risk of users bumping into the helicopter while using the climbing ladder 5.

[0049] Reference Figure 7 A helicopter rescue winch system and its operating method, wherein the operating method applies to any of the above-mentioned helicopter rescue winch systems, and the operating method is as follows:

[0050] S1: When using this winch system for rescue, first determine the area that needs to be rescued, and then hover the helicopter over the area that needs to be rescued.

[0051] S2: After the helicopter is hovered stably, the operator directly controls the rewind motor 4 to lower the climbing rope ladder 5 from the helicopter.

[0052] S3: After securing themselves with safety ropes, rescuers descend to the ground via the climbing ladder 5, which is stabilized by the clamping strap 63 and the stable rectangular frame 61, to carry out rescue operations.

[0053] S4: After the rescue operation is completed, the rescuers climb directly from the climbing rope ladder 5 into the hovering helicopter to complete the rescue operation.

[0054] S5: After the rescue operation is completed, the released climbing ladder 5 is retrieved directly using the rewind motor 4, and then the person leaves the hovering area.

[0055] Working principle: When this rescue winch system is needed, first determine the location requiring rescue. Then, the helicopter pilot hovers the helicopter at the rescue location. Rescuers then control the winding motor 4, causing the climbing ladder 5, wound on the winding roller 3, to fall from the roller 3 under the pull of the counterweight 8. During the descent of the climbing ladder 5, the drive motor rotates the two clamping straps 63 on the stabilizing rectangular frame 61, causing the climbing ladder 5 to fall. The two clamping straps 63 move under the support of the corresponding support rollers 62, restricting the falling climbing ladder 5. If the climbing ladder 5 falls too quickly, the locking component 64 on the stabilizing rectangular frame 61 limits its descent. The climbing ladder 5 moves the clamping belt 63, which in turn rotates the support roller 62. When the support roller 62 rotates, it drives the connecting shaft 74, which in turn drives the gear 75. The gear 75 moves on the rack 76, causing the stabilizing rectangular frame 61 on the support rod to move the climbing ladder 5 away from the helicopter. Rescuers then use the climbing ladder 5 to climb up and down from the hovering helicopter. When it is necessary to retract the climbing ladder 5, the winding motor 4 reverses the winding roller 3, causing the climbing ladder 5 to be wound onto the winding roller 3. While winding the climbing ladder 5, the support roller 62 reverses, and the gear 75 rotates in the opposite direction, moving on the rack 76, causing the stabilizing rectangular frame 61 to move closer to the helicopter.

Claims

1. A helicopter rescue winch system comprising two support blocks (1) characterised in that: Two support blocks one (1) are fixed on the shell of the helicopter, two support blocks two (2) are fixed on the two support blocks one (1), a winding roller (3) is rotatably connected between the two support blocks two (2), a winding motor (4) is fixed on one of the support blocks two (2), the output end of the winding motor (4) penetrates through the corresponding support block two (2) and is fixedly connected with the winding roller (3), a climbing soft ladder (5) is arranged on the winding roller (3), one end of the climbing soft ladder (5) is fixedly connected with the winding roller (3), a supporting mechanism (7) is arranged on the two support blocks one (1), a stabilizing mechanism (6) is arranged on the supporting mechanism (7), and the climbing soft ladder (5) corresponds to the stabilizing mechanism (6). The stabilizing mechanism (6) comprises a stabilizing rectangular frame (61), four pairs of upper and lower symmetrical supporting rollers (62) are rotatably connected to the inner wall of the stabilizing rectangular frame (61), clamping belts (63) are drivingly connected to the upper and lower supporting rollers (62), the climbing soft ladder (5) passes through between the two clamping belts (63), a locking assembly (64) is arranged on one side of the stabilizing rectangular frame (61), and a driving motor is fixed to one side of the stabilizing rectangular frame (61). The output end of the driving motor penetrates through the stabilizing rectangular frame (61) and is fixedly connected with one of the supporting rollers (62).

2. The helicopter rescue winch system of claim 1, wherein: The locking assembly (64) comprises a rotating shaft (641), the rotating shaft (641) penetrates through the stabilizing rectangular frame (61), the rotating shaft (641) is fixedly connected with one of the supporting rollers (62), a sliding rod (642) is slidingly connected to the rotating shaft (641), the sliding rod (642) is perpendicular to the rotating shaft (641), one end of the sliding rod (642) is fixedly connected with a locking block (643), a locking ring (644) is arranged on the rotating shaft (641), the locking ring (644) is fixedly connected with the stabilizing rectangular frame (61), locking teeth are formed in the locking block (643) and the locking ring (644), the locking teeth of the locking block (643) and the locking ring (644) are opposite to each other and correspond to each other, a spring is arranged at the end of the sliding rod (642) away from the locking block (643), one end of the spring is fixedly connected with the sliding rod (642), and the other end of the spring is fixedly connected with the rotating shaft (641).

3. The helicopter rescue winch system of claim 2, wherein: Flexible rubber pads (65) are arranged on the two clamping belts (63) and fixedly connected with the corresponding clamping belts (63).

4. The helicopter rescue winch system of claim 1, wherein: A counterweight (8) is arranged at the end of the climbing soft ladder (5) away from the winding roller (3), and the counterweight (8) is fixedly connected with the climbing soft ladder (5).

5. The helicopter rescue winch system of claim 2, wherein: The support mechanism (7) comprises two symmetrical connecting blocks (71), the connecting blocks (71) are fixedly connected with the stable rectangular frame (61), the connecting blocks (71) are fixedly connected with moving rods (72), one end of the moving rods (72) is fixedly connected with the connecting blocks (71), the connecting blocks (71) are rotatably connected with two symmetrical support wheels (73), the moving rods (72) are provided with moving grooves on two sides, and the support wheels (73) correspond to the moving grooves.

6. The helicopter rescue winch system of claim 5, wherein: One of the moving rods (72) is fixedly connected with a rack (76), the rack (76) is meshed with a gear (75), the gear (75) is fixedly connected with a connecting shaft (74), the connecting shaft (74) is rotatably connected with the corresponding connecting block (71), the connecting shaft (74) penetrates the stable rectangular frame (61), and the connecting shaft (74) is fixedly connected with one of the support rollers (62).

7. A method of using a helicopter rescue winch system, characterized by: The use method is suitable for the helicopter rescue winch system in any one of claims 1-6, and the use method is as follows: S1, when the winch system is used for rescue, first, the area needing rescue is determined, and then the helicopter is hovered above the area needing rescue; S2, after the helicopter is stably hovered, the operator directly controls the winding motor (4) to lower the climbing ladder (5) from the helicopter; S3, after the climbing ladder (5) is lowered, the rescue personnel directly descend to the ground on the climbing ladder (5) under the clamping belt (63) and the stable rectangular frame (61) after the safety rope is tied, and rescue activities are performed; S4, after the rescue activities are completed, the rescue personnel directly climb into the hovering helicopter from the climbing ladder (5), and the rescue operation is completed; and S5, after the rescue activities are completed, the winding motor (4) is directly used to wind the climbing ladder (5) that is lowered, and then the hovering area is left.

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