Mechanism for hoisting first-aid kit and unmanned aerial vehicle with same
The multi-strand sling and synchronous winding roller structure solves the problem of sling breakage when drones are transporting emergency supplies, ensuring the safe delivery of supplies and improving the operational reliability of drones in complex environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINESE PEOPLES LIBERATION ARMY UNIT 69215
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-05
AI Technical Summary
When drones are used to transport emergency medical supplies, a single hoisting rope is prone to breaking, making it impossible to deliver the supplies to the designated area. This poses a fatal risk, especially in complex environments.
It adopts a multi-strand hoisting rope and synchronous winding roller structure. Multiple winding rollers are arranged in parallel and connected by meshing gears to ensure that the hoisting rope is wound and unwound synchronously. In the event of a hoisting rope breakage, an emergency mechanism is used to cut the hoisting rope to ensure the safe descent of the item.
This technology enables the safe transport of emergency medical supplies even when the sling breaks, improving the reliability and safety of drones in complex environments.
Smart Images

Figure CN224197965U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drone hoisting technology, specifically to a mechanism for hoisting a first aid kit and a drone having the mechanism. Background Technology
[0002] With the rapid development of drone technology, its application in emergency rescue is becoming increasingly widespread. In complex environments such as natural disasters, accident sites, remote areas, and even battlefield emergency medical care, drones, with their advantages of rapid response, flexibility, and lack of terrain limitations, are gradually becoming an important tool for transporting emergency medical supplies. In particular, for the rapid delivery of first aid kits, drones can overcome the limitations of traditional ground transportation, providing crucial support for life-saving efforts during the "golden rescue time."
[0003] Existing drone-based lifting technology mainly consists of drones, lifting devices, hooks, etc. However, the lifting device typically has only one lifting rope (due to the problem of the lifting roller winding). In practice, a single lifting rope is prone to breakage (or accidental scraping and breaking), making it impossible to deliver emergency supplies to the designated area. This is a fatal problem in complex environments such as battlefield first aid. Therefore, those skilled in the art have proposed a mechanism for lifting first aid kits and a drone equipped with such a mechanism. Summary of the Invention
[0004] The purpose of this utility model is to solve the problem that when unmanned emergency supplies are transported, the single hoisting rope is prone to breakage, which makes it impossible to hoist the emergency supplies to the designated area. This utility model provides a mechanism for hoisting emergency supplies and an unmanned aerial vehicle with the mechanism.
[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0006] A mechanism for hoisting a first aid kit and a drone having the mechanism include multiple hoisting ropes and winding rollers for winding the hoisting ropes. Each winding roller winds up one hoisting rope, and multiple winding rollers can rotate synchronously to wind the ropes. The mechanism also includes a power module for driving the winding rollers.
[0007] Furthermore, it also includes a device box, in which a support is installed, and the two ends of the take-up roller are respectively rotatably mounted on the support and the side wall of the device box by bearings.
[0008] Furthermore, the plurality of take-up rollers are arranged in parallel and each adjacent take-up roller is fixed with meshing gears.
[0009] Furthermore, the power module includes a servo motor fixed on the support and a lithium battery installed in the device housing, the output shaft of the servo motor being fixed to the end of one of the take-up rollers.
[0010] Furthermore, a hook is fixed to the end of the suspension rope, and the bottom wall of the device box is provided with a wire hole for the suspension rope to pass through.
[0011] Furthermore, a partition plate fixed to the bottom wall of the device box is provided between the take-up rollers, and the partition plate is provided with clearance holes for the take-up rollers to pass through.
[0012] Furthermore, the device also includes an emergency mechanism, which includes a cutting plate and a cutting blade fixed to the bottom of the device box. The cutting plate and the cutting blade are arranged opposite each other with the wire hole as the center, and are used to cut the suspension rope when the cutting blade approaches the cutting plate.
[0013] Furthermore, it also includes a rectangular channel surrounding the cutter, with the cutter located inside the rectangular channel, and a miniature electric push rod with an output shaft fixed to the cutter is also provided at the bottom of the device box.
[0014] A drone, wherein the device housing is fixedly mounted on the bottom of the drone.
[0015] The beneficial effects of this utility model are as follows:
[0016] This invention features multiple parallel winding rollers, each with a concentrically fixed gear that meshes with the adjacent rollers. When one winding roller rotates to wind up the rope, the other winding rollers simultaneously wind up the rope. This allows for the hooking of multiple items when hoisting first-aid kits or other objects, ensuring that even if one of the ropes breaks, the object will not fall.
[0017] This invention achieves practical feasibility in specific environments such as battlefields by adding a cutting blade that pushes the rope out from a rectangular channel and moves towards the cutting plate, cutting the rope during the movement. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a structural schematic diagram of the device box of this utility model;
[0020] Figure 3 This is a schematic diagram of the emergency response mechanism of this utility model;
[0021] Figure 4 This is a schematic diagram of the hook part of this utility model;
[0022] Reference numerals: 1. Lifting rope; 2. Rewinding roller; 3. Power module; 31. Servo motor; 32. Lithium battery; 4. Device box; 5. Support; 6. Gear; 7. Hook; 8. Cable guide hole; 9. Divider plate; 10. Clearance hole; 11. Emergency mechanism; 111. Cutting plate; 112. Cutting blade; 113. Rectangular channel; 114. Miniature electric push rod. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0024] This embodiment provides a mechanism for hoisting a first-aid kit and a drone equipped with the mechanism, mainly to solve the problem that a single hoisting rope is prone to breakage when unmanned hoisting of first-aid supplies, making it impossible to deliver the supplies to the designated area. The following technical solution is provided, which will be discussed in conjunction with... Figures 1-4 Please provide a detailed explanation: Example
[0025] A mechanism for hoisting a first-aid kit includes multiple strands of hoisting rope 1 and winding rollers 2 for winding the rope 1. Each winding roller 2 winds up one strand of rope 1, and the multiple winding rollers 2 can rotate synchronously for winding. It also includes a power module 3 for driving the winding rollers 2. The mechanism further includes a housing 4, within which a support 5 is installed. The two ends of the winding rollers 2 are respectively rotatably mounted on the support 5 and the side wall of the housing 4 via bearings. Please refer to [link / reference]. Figure 2 Here, the two ends of the take-up roller 2 are tightly fitted to the outer ring of the bearing, and the bearing is installed on the side wall of the support 5 or the device box 4 through the bearing seat, so that the take-up roller 2 realizes the function of rotating around itself.
[0026] Please see Figure 2 To achieve synchronous rotation of multiple take-up rollers 2, these rollers 2 are arranged in parallel, and each adjacent take-up roller 2 is fixed with a meshing gear 6. When one take-up roller 2 rotates, the gear 6 on that roller 2 can drive the adjacent gear 6 to rotate, thereby driving the adjacent take-up roller 2 to rotate, thus achieving the winding of the lifting rope 1. This application takes two take-up rollers 2 as an example, but in practice, there can be multiple take-up rollers 2, which can be designed according to the actual situation. That is to say, in this embodiment, by setting multiple take-up rollers 2 to be arranged in parallel, and each take-up roller 2 is concentrically fixed with a gear 6 that meshes with the adjacent one, when one take-up roller 2 rotates to wind the lifting rope 1, the other take-up rollers 2 also wind the lifting rope 1 synchronously. So when hoisting a first aid kit or other items, multiple hooks can be used to ensure that if one of the lifting ropes 1 breaks accidentally, the suspended item will not fall.
[0027] Please see Figure 2 In this embodiment, to ensure the rotation of the take-up roller 2, the power module 3 includes a servo motor 31 fixed on the support 5 and a lithium battery 32 installed in the device box 4. The output shaft of the servo motor 31 is fixed to the end of one of the take-up rollers 2. The lithium battery 32 is connected to the positive and negative terminals of the servo motor 31 to provide it with power. It should also be noted that the servo motor 31 is electrically connected to the UAV central control unit. Simply put, its action commands are controlled by the UAV. This technology is prior art and is not the problem to be solved in this application, so it will not be elaborated further. It should also be explained that the servo motor 31 is equipped with a motor brake, that is, after the servo motor 31 is powered off, its output shaft cannot rotate freely. In addition, in order to allow the suspension rope 1 to pass through, the bottom wall of the device box 4 is constructed with a wire hole 8 for the suspension rope 1 to pass through, and the end of the suspension rope 1 is fixed with a hook 7. Please refer to the appendix. Figure 4 The hook 7 here is an anti-detachment hook 7, which is equipped with an anti-detachment arm and is controlled by a tension spring. It is existing technology and will not be described in detail here.
[0028] Please see Figure 2 In this embodiment, in order to avoid the problem of tangling between multiple suspension ropes 1, a partition plate 9 fixed to the bottom wall of the device box 4 is provided between the take-up rollers 2. The partition plate 9 is constructed with a clearance hole 10 for the take-up roller 2 to pass through. The partition plate 9 separates the suspension ropes 1, thus avoiding tangling. At the same time, the clearance hole 10 can be used for the take-up roller 2 to pass through. Example
[0029] This embodiment adds the following technical solution based on embodiment 1, including an emergency mechanism 11. This emergency mechanism 11 is mainly applicable to the battlefield. When the drone reaches its destination and is unable to rendezvous with the contact person, the cargo at hook 7 cannot be detached, and the cargo must be lowered. In this case, the emergency mechanism 11 will be activated. Specifically, the emergency mechanism 11 includes a cutting plate 111 and a cutting blade 112 fixed to the bottom of the device box 4. The cutting plate 111 and the cutting blade 112 are arranged opposite each other with the wire hole 8 as the center. The cutting blade 112 is used to cut the lifting rope 1 when it approaches the cutting plate 111. It also includes a rectangular channel 113 wrapped around the cutting blade 112, with the cutting blade 112 located inside the rectangular channel 113. The bottom of the device box 4 also has a miniature electric push rod 114 with an output shaft fixed to the cutting blade 112. It should be noted that this miniature electric push rod... 114 is also electrically connected to the UAV central control unit. Simply put, its action commands are controlled by the UAV. This control can be wireless or wired, similar to the servo motor 31. During operation, the operator issues commands to the UAV central control unit, which controls the micro electric push rod 114 to extend, pushing the cutting blade 112 out of the rectangular channel 113 and moving it toward the cutting plate 111. During the movement, it cuts the suspension rope 1. At the same time, the rectangular channel 113 is used to store the cutting blade 112, preventing the blade from touching the suspension rope 1. The maximum extension distance of the micro electric push rod 114 is to reach the position of the cutting plate 111. This design mechanism, by adding the cutting blade 112 to be pushed out of the rectangular channel 113 and moved toward the cutting plate 111, and cutting the suspension rope 1 during the movement, realizes the practical feasibility of operation in specific environments such as the battlefield.
[0030] A drone, wherein the device box 4 is fixedly installed on the bottom of the drone.
[0031] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A mechanism for hoisting a first-aid kit, characterized in that, It includes a multi-strand suspension rope (1) and a winding roller (2) for winding the suspension rope (1), each winding roller (2) is responsible for winding one strand of suspension rope (1), and multiple winding rollers (2) can be wound synchronously. It also includes a power module (3) for driving the winding roller (2) to move.
2. The mechanism for hoisting a first-aid kit according to claim 1, characterized in that, It also includes a device box (4), in which a support (5) is installed, and the two ends of the take-up roller (2) are respectively rotatably mounted on the support (5) and the side wall of the device box (4).
3. The mechanism for hoisting a first-aid kit according to claim 1, characterized in that, The multiple take-up rollers (2) are arranged in parallel and each adjacent take-up roller (2) is fixed with a meshing gear (6).
4. The mechanism for hoisting a first-aid kit according to claim 2, characterized in that, The power module (3) includes a servo motor (31) fixed on the support (5) and a lithium battery (32) installed in the device box (4). The output shaft of the servo motor (31) is fixed to the end of one of the take-up rollers (2).
5. The mechanism for hoisting a first-aid kit according to claim 2, characterized in that, The end of the sling (1) is fixed with a hook (7), and the bottom wall of the device box (4) is constructed with a wire hole (8) for the sling (1) to pass through.
6. The mechanism for hoisting a first-aid kit according to claim 2, characterized in that, A partition plate (9) is provided between the take-up rollers (2) and fixed to the bottom wall of the device box (4). The partition plate (9) is provided with clearance holes (10) for the take-up rollers (2) to pass through.
7. The mechanism for hoisting a first-aid kit according to claim 2, characterized in that, It also includes an emergency mechanism (11), which includes a cutting plate (111) and a cutting blade (112) fixed to the bottom of the device box (4). The cutting plate (111) and the cutting blade (112) are arranged opposite each other with the wire hole (8) as the center. It is used to cut the hoisting rope (1) when the cutting blade (112) approaches the cutting plate (111).
8. The mechanism for hoisting a first-aid kit according to claim 7, characterized in that, It also includes a rectangular channel (113) wrapped around the cutter (112), the cutter (112) is located inside the rectangular channel (113), and the bottom of the device box (4) is also provided with a miniature electric push rod (114) whose output shaft is fixed to the cutter (112).
9. A drone, characterized in that, The device includes a mechanism for hoisting a first aid kit as described in any one of claims 1-8, wherein the device box (4) is fixedly installed on the bottom of the drone.