An unmanned aerial vehicle parachute automatic unhooking device

Abstract

An automatic unhooking device for a drone parachute includes a slot on the lower clamping block. When the parachute is closed, the upper and lower clamping blocks are secured by springs via the slots and are inserted into upper and lower sleeves. A spring pin at the upper end of the upper clamping block passes through the lower clamping block, thus constraining the upper and lower sleeves. One end of the parachute connecting rope is connected to the parachute body, and the other end passes through a limiting wire, through the upper sleeve, and is connected to the upper clamping block. One end of the fuselage connecting rope is connected to the fuselage, and the other end passes through the lower sleeve and is connected to the lower clamping block. The limiting wire keeps the parachute connecting rope in a slack state. When the parachute opens, the parachute connecting rope pulls the limiting wire, causing the upper sleeve to move upward, causing the spring pin to pop out and releasing the constraint of the upper and lower sleeves on the upper and lower clamping blocks. As the drone slowly lands, the tension on the connecting rope disappears, and the spring action causes the upper and lower clamping blocks to separate, completing the separation of the parachute from the drone fuselage. This device has a simple structure, achieves automatic unhooking, is easy and reliable to operate, and is reusable.

Description

Technical Field

[0001] This utility model relates to an automatic unhooking device for a drone parachute. Background Technology

[0002] Parachutes are widely used for landing gearless drones, decelerating them in mid-air until they land. However, after landing, the parachute usually remains attached to the drone, making it susceptible to wind damage that can cause it to tip over or become damaged. In the current aviation field, drone parachute release mechanisms can be mainly divided into mechanical release mechanisms and explosive release mechanisms. Mechanical release mechanisms are complex in structure and heavy; explosive release mechanisms rely on the explosion of controlled pyrotechnics for separation, are non-reusable, have complex control circuits, are costly, and pose certain safety hazards during the transportation and use of the pyrotechnics. Utility Model Content

[0003] This invention addresses the problems of existing unhooking technologies by providing an innovative automatic unhooking device for drone parachutes. It achieves unhooking without relying on mechanical devices such as servos or pyrotechnics. It has a simple structure, is lightweight, and has high reliability. At the same time, it can effectively achieve unhooking and separation of the drone parachute after landing, reducing damage to the drone.

[0004] According to one aspect of the present invention, an automatic unhooking device for a drone parachute is provided, characterized in that it comprises:

[0005] Parachute connecting rope, limit screw, upper sleeve, upper clamping block, lower sleeve, lower clamping block, fuselage connecting rope, spring pin, spring.

[0006] in:

[0007] The lower clamping block is equipped with a slot.

[0008] When the umbrella is not open:

[0009] The upper and lower clamping blocks are clamped by the spring through the slot and are installed in the upper and lower sleeves. A spring pin located at the upper end of the upper clamping block passes through the lower clamping block, thereby constraining the upper and lower clamping blocks by the upper and lower sleeves.

[0010] One end of the parachute connecting rope is connected to the parachute body, and the other end of the parachute connecting rope passes around the limiting wire, passes through the upper sleeve, and is connected to the upper clamping block.

[0011] One end of the machine body connecting rope is connected to the machine body, and the other end is connected to the lower clamping block through the lower sleeve;

[0012] The limiting wire prevents the parachute connecting lines from being in a slack state.

[0013] When the parachute opens, the parachute body opens, and the parachute connecting lines generate tension, pulling the limit belt and causing the upper sleeve to move upward, thus releasing the spring pin and releasing the upper and lower sleeves from their constraints on the upper and lower clamping blocks.

[0014] As the parachute carrying the drone slowly lands, the tension on the fuselage connecting rope and the parachute connecting rope disappears. At this time, under the action of the compressed spring force, the upper and lower clamping blocks separate in opposite directions, completing the separation of the parachute from the drone fuselage.

[0015] According to a further aspect of this utility model, the above-mentioned automatic unhooking device for drone parachutes is characterized in that:

[0016] After the drone lands and is recovered, the parachute connecting rope, limiting screw, upper sleeve, upper clamping block, lower sleeve, lower clamping block, fuselage connecting rope, spring pin, and spring are restored to their state before the parachute is opened, thus allowing the drone parachute automatic unhooking device to be used multiple times. Attached Figure Description

[0017] Figure 1 This is an overall view of an automatic unhooking device for a drone parachute according to an embodiment of the present invention.

[0018] Figure 2 This is a diagram showing the state of an automatic unhooking device for a drone parachute during parachute deployment, according to an embodiment of the present invention.

[0019] Figure 3 This is a diagram showing the landing state of an automatic unhooking device for a drone parachute according to an embodiment of the present invention.

[0020] Figure 4 This illustrates the situation where the parachute and fuselage of an unmanned aerial vehicle (UAV) with an automatic unhooking device according to an embodiment of the present invention are completely separated during the unhooking process.

[0021] Figure 5 It is a drone equipped with an automatic unhooking device for drone parachutes according to an embodiment of the present invention. Detailed Implementation

[0022] The present invention will be described below through embodiments:

[0023] An embodiment of the present invention provides an automatic parachute unhooking device, such as... Figures 1 to 5 As shown, it includes a parachute connecting rope 1, a limiting screw 2, an upper sleeve 3, an upper clamping block 4, a lower sleeve 5, a lower clamping block 6, a fuselage connecting rope 7, a spring pin 8, and a spring 9.

[0024] When the parachute is not deployed, the upper clamping block 4 and the lower clamping block 6 compress the spring 9 through the slot 10 and are inserted into the upper sleeve 3 and the lower sleeve 5. A spring pin 8 located at the upper end of the release device passes through, thus locking the release device. One end of the parachute connecting rope 1 is connected to the parachute body b. Figure 5 The other end of the parachute connecting rope 1 is tied to the limiting wire 2, and then passes through the upper sleeve 3 and is connected to the upper clamping block 4; one end of the fuselage connecting rope 7 is connected to the fuselage c, and the other end is connected to the lower clamping block 6 through the lower sleeve 5. The limiting wire 2 restricts the parachute connecting rope 1 to be in a slack state.

[0025] When opening the umbrella, as Figure 2 As shown, when the parachute opens, the parachute connecting rope 1 generates tension, pulling open the limiting wire 2 and the upper sleeve 3. At this time, the spring pin 8 pops out, releasing the constraint on the upper and lower clamping blocks and the lower sleeve.

[0026] As the drone slowly descends under the parachute, the tension on the fuselage connecting rope 7 and the parachute connecting rope 1 disappears. At this moment, as... Figure 3 As shown, under the elastic force of the compressed spring 9, the upper and lower clamping blocks separate in opposite directions, completing the separation of the parachute from the drone fuselage. Figure 4 It automatically disengages without requiring external operation signal input. After disengagement, the components can be reconnected for repeated use.

[0027] The advantages and / or beneficial effects of this utility model include:

[0028] 1) Lightweight design and simple structure.

[0029] Existing parachute release devices are complex in structure, large in size and weight, which is not conducive to the recovery process of UAVs. The automatic parachute release device according to this invention has a simple structure, high strength, and light weight. Furthermore, it can utilize novel composite materials.

[0030] 2) Automatic unhooking design, simple and reliable operation.

[0031] Existing parachute release devices typically use mechanical triggering mechanisms or gunpowder-based power sources and control circuits, relying on remote control or automatic control programs to achieve parachute release. This process is complex and structurally intricate, and prone to premature or delayed release during descent, hindering drone recovery. The automatic parachute release device of this invention employs an automatic parachute release design. Based on the stress changes of the parachute and fuselage connecting ropes during descent, the release component is designed to eliminate the need for additional mechanical triggering mechanisms, gunpowder-based power sources, and control circuits. This not only simplifies the structure but also improves efficiency and convenience.

[0032] 3) High reliability and high security.

[0033] Existing parachute release devices typically use mechanical triggering mechanisms or gunpowder-based power sources and control circuits to release the parachute via remote control or automatic control programs. This process involves many steps, and mechanical or gunpowder-based triggering is prone to failure, posing certain dangers and jeopardizing drone recovery. Furthermore, gunpowder-based power sources are not reusable and are costly. In addition, drones may encounter various emergencies during descent, such as strong winds. The release device designed in this proposal has a simple structure, is easy to install, requires no additional devices, is safe, will not experience control failures, and can be reused during descent.

Claims

1. An automatic unhooking device for a drone parachute, characterized in that... include: Parachute connecting rope (1), limiting screw (2), upper sleeve (3), upper clamping block (4), lower sleeve (5), lower clamping block (6), fuselage connecting rope (7), spring pin (8), spring (9), in: The lower clamping block (6) is provided with a slot (10). When the umbrella is not open: The upper clamping block (4) and the lower clamping block (6) clamp the spring (9) through the slot (10) and are installed in the upper sleeve (3) and the lower sleeve (5). A spring pin (8) located at the upper end of the upper clamping block (4) passes through the lower clamping block (6) to achieve the constraint of the upper sleeve (3) and the lower sleeve (5) on the upper clamping block (4) and the lower clamping block (6). One end of the parachute connecting rope (1) is connected to the parachute body (b), and the other end of the parachute connecting rope (1) passes around the limiting wire (2), passes through the upper sleeve (3), and is connected to the upper clamping block (4). One end of the body connecting rope (7) is connected to the body (c), and the other end is connected to the lower clamping block (6) through the lower sleeve (5); The limiting wire (2) restricts the parachute connecting rope (1) from being in a slack state. When the parachute opens, the parachute body opens, and the parachute connecting rope (1) generates tension, pulling the limiting wire (2) and causing the upper sleeve (3) to move upward, causing the spring pin (8) to pop out, thereby releasing the constraint of the upper sleeve (3) and lower sleeve (5) on the upper clamping block (4) and lower clamping block (6). When the parachute carrying the drone slowly lands, the tension on the fuselage connecting rope (7) and the parachute connecting rope (1) disappears. At this time, under the elastic force of the compressed spring (9), the upper clamping block (4) and the lower clamping block (6) separate in opposite directions, completing the separation of the parachute from the drone fuselage.

2. The automatic unhooking device for UAV parachutes according to claim 1, characterized in that: After the drone lands and is recovered, the parachute connecting rope (1), limit wire (2), upper sleeve (3), upper clamping block (4), lower sleeve (5), lower clamping block (6), fuselage connecting rope (7), spring pin (8), and spring (9) are restored to their unopened state, so that the drone parachute automatic unhooking device can be used repeatedly.

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