A quick-release protective frame suitable for airdropping small and medium-sized unmanned intelligent equipment

Abstract

This utility model discloses a quick-release protective frame suitable for airdropping small and medium-sized unmanned intelligent equipment. It includes a cubic frame assembled from several square tubes. A pair of tethering points are provided at the center of each of the four sides of the frame (front, back, left, and right), and a pair of tethering points are provided on each of the four side edges of the frame's bottom. Tethering points are also provided at the center of the columns on the four sides of the frame. The tethering points on the bottom of the frame serve as lifting points. The tethering points on the sides of the frame are high-strength tethering points. The overall dimensions and structure of the quick-release protective frame, the arrangement of the tethering and lifting points, and the high-strength five-sided quick-release structure enable the airdrop of small and medium-sized unmanned intelligent equipment that would otherwise be unable to meet airdrop requirements.

Description

Technical Field

[0001] This utility model belongs to the field of protective frame technology, specifically relating to a quick-release protective frame suitable for airdropping small and medium-sized unmanned intelligent equipment. Background Technology

[0002] Currently, the Chinese Air Force primarily uses airdrop platforms and parachute systems for airdrops. This method, which involves securing supplies to the platform, is generally only suitable for heavy, high-strength equipment. For example, vehicles must meet the detailed requirements for airdrop vehicles outlined in "GJB 3280-98 Requirements for Airdrop Binding of Vehicles and Artillery." The equipment must also have sufficient tie-down and sling-down points and meet the relevant requirements for these points in "GJB 6854-2009 Requirements for Airdrop of Airborne Equipment." Generally, small and medium-sized unmanned intelligent equipment has a lower structural strength and lacks pre-designed tie-down and sling-down points, which significantly limits its effectiveness in special airdrop missions.

[0003] Chinese utility model patent CN221520768U discloses an air-dropped container, including a container frame, with tie-down buckles on the top outer wall and inner end face of the container. It can be transported by general-purpose transport vehicles, "35-ton equipment transfer semi-trailers," and "20-ton equipment transfer semi-trailers," greatly improving the loading efficiency of containerized goods. Chinese utility model patent CN221252502U discloses a containerized storage and supply cabin with tie-down devices on the outside of the cabin. It can be used with general-purpose transport and loading equipment, allowing products to be directly transported to the field for loading and unloading without unpacking, transshipment, or assembly, greatly improving efficiency and shortening time. Both of these devices have tie-down mechanisms, but the force distribution at the tie-down points is uneven, making them prone to swaying during hoisting. Utility Model Content

[0004] To address the aforementioned issues, this invention aims to provide a quick-release protective frame suitable for the airdrop of small and medium-sized unmanned intelligent equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quick-release protective frame suitable for airdropping small and medium-sized unmanned intelligent equipment, comprising a cubic frame spliced ​​from several square tubes, with a pair of tethering points set in the middle of the front, back, left and right sides of the frame, and a pair of tethering points set on the four edges of the bottom surface of the frame.

[0006] Preferably, the frame has tethering points in the middle of the columns on the four sides (front, back, left, and right).

[0007] Preferably, the tethering point on the bottom surface of the frame is the hoisting point.

[0008] Preferably, the tethering points on the side of the frame are high-strength tethering points.

[0009] Preferably, the four sides of the frame are fixed together in pairs using locking pins.

[0010] Preferably, the strength specification of a single tether point on the frame is greater than or equal to 2 tons.

[0011] Compared with the prior art, this utility model has the following advantages: the protective frame has sufficient strength and appropriate size, and is highly applicable. By using this frame, small and medium-sized unmanned intelligent equipment with a size of less than 1.8m×1.5m×1m can meet the relevant requirements for airdrop and be airdropped, effectively increasing the applicable scenarios of the equipment and providing a solution for the limitations of such equipment due to insufficient structure or strength in special scenarios such as airdrop. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the quick-release protective frame in this utility model;

[0014] Figure 2 This is a stress cloud diagram of the frame in this utility model;

[0015] Figure 3 This is a schematic diagram of the stress analysis of the tethering point strength in this utility model:

[0016] In the diagram, 1-square tube; 2-high-strength tethering point; 3-lifting point; 4-clamping pin. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments. Any modifications, substitutions and alterations made based on ordinary technical knowledge and conventional means in the art without departing from the above-described technical concept of the present invention are included within the scope of the present invention.

[0018] Reference Figure 1The quick-release protective frame is constructed primarily of 100mm×100mm×5mm square tubing, with external dimensions of 2.05m×1.75m×1.3m. It possesses the strength to withstand the impact of airdrops while reducing weight. The frame has two tethering points on each of the four sides (front, back, left, and right) in the middle, arranged symmetrically. Two hoisting points are also provided on each of the four sides of the top, symmetrically distributed, meeting the relevant requirements for hoisting points 3 and tethering points 2 in "GJB 6854-2009 Airdrop Requirements for Airborne Equipment". All connections are secured with locking pins 4, four on each of the four sides (front, back, left, and right), for a total of 16 locking pins. All five sides (front, back, left, and right) are detachable, and the high-strength locking pins are not easily deformed by impact.

[0019] Explanation of principles: Figure 2 As shown, the quick-release protective frame was subjected to stress analysis under extreme conditions, and its structural strength meets the relevant requirements for airdrop. Figure 3 As shown, the quick-release protective frame is subjected to stress analysis under extreme working conditions: the strength specification of a single mooring point is 2 tons, there are a total of 16 mooring points, the total weight of the equipment is calculated as 1 ton, the horizontal distance between the mooring position of the delivery platform and the mooring point of the frame is calculated as 200mm, the safety factor is μ=0.6, and the theoretical calculation of the mooring point strength meets the requirement of 10g parachute opening impact.

[0020] During airdrop, the equipment was mounted inside a quick-release protective frame and secured to the delivery platform using internal honeycomb paper filling. Following the requirements of GJB 7789-2012 "Requirements for Heavy-Duty Airdrop Tests," the device was hoisted to a height of 3.2m on delivery platform 16-B for a drop test. The quick-release protective frame remained structurally intact and could be quickly assembled and disassembled. Inspection by relevant technicians confirmed that none of the small unmanned vehicles airdropped exhibited deformation, and all functions were tested and found to be operational. The small unmanned vehicle equipped with the quick-release protective frame met the drop test standards.

[0021] The quick-release protective frame of this utility model, with its overall dimensions and structure, arrangement of tethering points and hoisting points, and high-strength five-sided quick-release structure, enables small and medium-sized unmanned intelligent equipment that could not originally meet the requirements for airdrop to be airdropped.

[0022] The foregoing has provided a detailed description of a quick-release protective frame suitable for the airdrop of small and medium-sized unmanned intelligent equipment, as provided by this utility model. Specific examples have been used to illustrate the structure and working principle of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this utility model.

Claims

1. A quick-release protective frame suitable for airdropping small and medium-sized unmanned intelligent equipment, characterized in that: It includes a cubic frame made of several square tubes. A pair of tie points are set in the middle of the columns on the four sides of the frame. A pair of tie points are set on the four edges of the bottom of the frame. The connection of each side is fixed with a snap pin. All five frames can be disassembled. The frame can withstand a tensile force of 20 kN or more at a single tethering point.

2. The quick-release protective frame for airdropping small and medium-sized unmanned intelligent equipment according to claim 1, characterized in that: The tethering points on the bottom surface of the frame are the hoisting points.

3. The quick-release protective frame for airdropping small and medium-sized unmanned intelligent equipment according to claim 1, characterized in that: The tethering points on the side of the frame are high-strength tethering points.

4. The quick-release protective frame for airdropping small and medium-sized unmanned intelligent equipment according to claim 1, characterized in that: The four sides of the frame are fixed together by pins.

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