A support device for snow blindness testing of unmanned helicopters

Abstract

This invention proposes a support device for snow blind testing of unmanned helicopters, belonging to the field of aircraft control technology. The aim is to solve the problems of existing support devices for unmanned helicopter testing in high-altitude, snow-covered environments, such as poor support stability, insufficient compatibility with multiple models, and cumbersome adjustment operations, which make it difficult to meet the requirements of safe, accurate, and efficient testing of unmanned helicopters in such environments. In this invention, an angle adjustment block is mounted on the upper part of the column, a lower lug is mounted on the angle adjustment block, and an upper lug is mounted on the landing gear connecting plate. The two ends of the variable pitch support rod are connected to the upper and lower lugs. The top of the variable pitch ball joint is fixed to the lower surface of the landing gear connecting plate, and the bottom is fixed to the column. This invention solves the problems of poor support stability, insufficient compatibility with multiple models, and cumbersome adjustment operations in unmanned helicopter testing support devices in high-altitude, snow-covered environments, which make it difficult to meet the requirements of safe, accurate, and efficient testing of unmanned helicopters in such environments.

Description

Technical Field

[0001] This invention belongs to the field of aircraft control technology, and particularly relates to a support device for snow blindness testing of unmanned helicopters. Background Technology

[0002] Unmanned helicopters, with their advantages of maneuverability, convenient takeoff and landing, and strong adaptability, are widely used in special scenarios such as polar exploration, plateau patrol, and rescue in cold regions. In these scenarios, frequent snowfall in winter can cause strong diffuse reflection of light from the snow surface under strong sunlight, which can easily lead to "snow blindness" on the optical sensors of the unmanned helicopter. This manifests as sensor imaging distortion, signal interference, and reduced data acquisition accuracy. In severe cases, it can affect the flight attitude control, target recognition, and path planning of the unmanned helicopter, escalating into flight safety risks.

[0003] Therefore, conducting snow blindness tests on unmanned helicopters is a crucial step in verifying their adaptability to high-altitude and cold environments and ensuring the reliability of operations in special scenarios. Snow blindness tests need to simulate the diffuse reflection light environment of snow accumulation, and at the same time, the unmanned helicopter needs to be stably supported to ensure that the fuselage attitude is fixed and the sensor positions are accurate during the test, so as to accurately collect equipment performance data under snow blindness conditions.

[0004] Existing UAV test support devices are mostly designed for conventional environments and have the following shortcomings: First, insufficient support stability. In high-altitude and cold-weather test environments, the ground is prone to icing and slipping, and traditional support structures are unable to withstand the effects of low-temperature icing, easily leading to fuselage displacement and swaying, resulting in deviations in test data. Second, poor adaptability. Different models of UAVs have different fuselage dimensions, weights, and support stress points. Existing devices are mostly fixed structures, unable to flexibly adjust support height, angle, and support spacing, making it difficult to meet the test needs of multiple UAV models. Third, lack of protective design. Low-temperature environments can easily cause the metal components of the support device to become brittle and the connectors to loosen. Furthermore, the impact of snow accumulation on the support structure is not considered, which can easily lead to structural deformation and support failure during long-term testing, affecting the safety and continuity of the test. Fourth, insufficient ease of operation. During the test, the attitude of the UAV needs to be frequently adjusted to simulate snow-blind scenarios at different flight angles. Existing devices have cumbersome adjustment procedures and are time-consuming, reducing test efficiency.

[0005] In summary, there is an urgent need to design a support device for snow blindness testing of unmanned helicopters. This would address the shortcomings of existing support devices in high-altitude, cold, and snowy environments, which are unable to meet the requirements for safe, accurate, and efficient testing of unmanned helicopters in such conditions. These limitations include poor support stability, insufficient compatibility with various models, and cumbersome adjustment operations. Summary of the Invention

[0006] A brief overview of the invention is given below to provide a basic understanding of certain aspects of it. It should be understood that this overview is not an exhaustive summary of the invention. It is not intended to identify key or essential parts of the invention, nor is it intended to limit the scope of the invention. Its purpose is merely to present certain concepts in a simplified form as a prelude to the more detailed description that follows.

[0007] In view of this, in order to solve the problem that the existing support devices for unmanned helicopter tests in cold and snowy environments are difficult to meet the requirements for safe, accurate and efficient testing of unmanned helicopters in cold environments due to poor support stability, insufficient compatibility with multiple models and cumbersome adjustment operations, this invention provides a support device for snow blind testing of unmanned helicopters.

[0008] Solution: A support device for snow blindness testing of unmanned helicopters, comprising an angle adjustment block, a landing gear connecting plate, a lower lug, a pitch control rod, a pitch ball joint, a column, and an upper lug;

[0009] An angle adjustment block is installed on the outer wall of the column. The lower ear is installed on the upper surface of the angle adjustment block, and the upper ear is installed on the lower surface of the landing gear connecting plate. The two ends of the variable pitch support rod are connected to the lower ear and the upper ear.

[0010] The top of the variable pitch ball joint is fixed to the landing gear connecting plate, and the bottom of the variable pitch ball joint is fixed to the column.

[0011] Furthermore, the variable pitch support rod includes an internally threaded rod end spherical bearing, a threaded sleeve, a threaded rod, and a lug pin sleeve; the threaded sleeve is connected to the internally threaded rod end spherical bearing on both sides through the threaded rod, and the lug pin sleeve passes through the internally threaded rod end spherical bearing to cooperate with the lower lug and the upper lug; the internally threaded rod end spherical bearing is fixed to the lower lug and the upper lug by a pin.

[0012] Furthermore, the variable pitch ball joint includes an outer spherical surface, an outer spherical surface cap, an inner spherical surface, and a fixing pin; the inner spherical surface is provided with a fixing groove, and the fixing pin passes through the outer spherical surface and is inserted into the fixing groove of the inner spherical surface; the top of the inner spherical surface is provided with a threaded hole that connects to the landing gear connecting plate, the outer spherical surface is provided with a hemispherical groove, the inner spherical surface is placed in the hemispherical groove, the top of the outer spherical surface is fixedly connected to the outer spherical surface cap by bolts, and the bottom of the outer spherical surface is fixedly connected to the column by bolts.

[0013] Furthermore, the angle adjustment block has a symmetrical structure, with two angle adjustment blocks enclosing the column.

[0014] Furthermore, the minimum number of the variable pitch support rods is three.

[0015] Furthermore, the column has an internal hollow structure.

[0016] The present invention has the following advantages over the prior art:

[0017] 1. The present invention has a compact structure that can stably support unmanned helicopters and accurately simulate actual flight attitude changes, and has important engineering practical value for the development of snow blindness test systems for unmanned helicopters;

[0018] 2. This invention, through flexible adjustment of the variable pitch support and column, can adapt to different test conditions and usage requirements, significantly expanding the application range and scenario adaptability of the device;

[0019] 3. The present invention as a whole meets the key requirements of snow blindness testing of unmanned helicopters, such as compact structure, high degree of freedom, good stability, low vibration and noise, and convenient operation, and provides stable and reliable equipment support and technical guarantee for snow blindness testing of unmanned helicopters. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0021] Figure 1 This is a schematic diagram of a support device required for snow blindness testing of unmanned helicopters.

[0022] Figure 2 This is a sectional view of the main support device.

[0023] Figure 3 This is a diagram showing the positional relationships of the variable pitch support rods;

[0024] Figure 4 This is a schematic diagram of a variable pitch ball joint.

[0025] In the diagram: 1-Angle adjustment block, 2-Landing gear connecting plate, 3-Lower lug, 4-Variable pitch support rod, 5-Variable pitch ball joint, 6-Column, 7-Internal thread rod end joint bearing, 8-Threaded sleeve, 9-Threaded rod, 10-Lug pin sleeve, 11-Outer spherical surface, 12-Outer spherical surface cap, 13-Inner spherical surface, 14-Fixing pin, 15-Upper lug. Detailed Implementation

[0026] To make the technical solutions and advantages of the embodiments of the present invention clearer, the exemplary embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0027] Examples, References Figures 1-4This embodiment describes a support device for snow blindness testing of unmanned helicopters, comprising an angle adjustment block 1, a landing gear connecting plate 2, a lower lug 3, a pitch support rod 4, a pitch ball joint 5, a column 6, and an upper lug 15.

[0028] An angle adjustment block 1 is installed on the outer wall of the column 6. The lower ear 3 is installed on the upper surface of the angle adjustment block 1, and the upper ear 15 is installed on the lower surface of the landing gear connecting plate 2. The two ends of the variable pitch support rod 4 are connected to the lower ear 3 and the upper ear 15.

[0029] The top of the variable pitch ball joint 5 is fixed to the landing gear connecting plate 2, and the bottom of the variable pitch ball joint 5 is fixed to the column 6.

[0030] Furthermore, the variable pitch support rod 4 includes an internal thread rod end spherical bearing 7, a threaded sleeve 8, a screw 9, and a lug pin sleeve 10; the threaded sleeve 8 is connected to the internal thread rod end spherical bearing 7 on both sides through the screw 9, and the lug pin sleeve 10 passes through the internal thread rod end spherical bearing 7 and cooperates with the lower lug 3 and the upper lug 15; the internal thread rod end spherical bearing 7 is fixed to the lower lug 3 and the upper lug 15 by a pin.

[0031] Furthermore, the variable pitch ball joint 5 includes an outer spherical surface 11, an outer spherical surface cap 12, an inner spherical surface 13, and a fixing pin 14; the inner spherical surface 13 is provided with a fixing groove, and the fixing pin 14 passes through the outer spherical surface 11 and is inserted into the fixing groove of the inner spherical surface 13; the top of the inner spherical surface 13 is provided with a threaded hole that connects to the landing gear connecting plate 2, the outer spherical surface 11 is provided with a hemispherical groove, the inner spherical surface 13 is placed in the hemispherical groove, the top of the outer spherical surface 11 is fixedly connected to the outer spherical surface cap 12 by bolts, and the bottom of the outer spherical surface 11 is fixedly connected to the column 6 by bolts.

[0032] Furthermore, the angle adjustment block 1 has a symmetrical structure, with two angle adjustment blocks 1 enclosing the column 6.

[0033] Furthermore, the minimum number of the variable pitch support rods 4 is three.

[0034] Furthermore, the column 6 has an internal hollow structure.

[0035] The present invention has a compact structure that can stably support unmanned helicopters and accurately simulate actual flight attitude changes, which has important engineering practical value for the development of snow blindness test systems for unmanned helicopters; at the same time, through flexible adjustment of the variable pitch support and column, it can be adapted to different test conditions and usage requirements, significantly expanding the application range and scenario adaptability of the device.

[0036] This invention comprehensively meets the key requirements of snow blindness testing for unmanned helicopters, such as compact structure, high degree of freedom, good stability, low vibration and noise, and convenient operation, providing stable and reliable equipment support and technical guarantee for snow blindness testing of unmanned helicopters.

[0037] Although the invention has been described with reference to a limited number of embodiments, those skilled in the art will understand from the foregoing description that other embodiments are conceivable within the scope of the invention described herein. Furthermore, it should be noted that the language used in this specification has been chosen primarily for readability and instructional purposes, and not for the purpose of interpreting or limiting the subject matter of the invention. Therefore, many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the appended claims. The disclosure of the invention is illustrative and not restrictive, and the scope of the invention is defined by the appended claims.

Claims

1. A support device for snow blindness testing of unmanned helicopters, characterized in that, Includes angle adjustment block (1), landing gear connecting plate (2), lower lug (3), pitch support rod (4), pitch ball joint (5), column (6) and upper lug (15); Two semi-circular ring structure angle adjustment blocks (1) are installed on the outer wall of the column (6). The lower ear seat (3) is installed on the upper surface of the angle adjustment block (1), and the upper ear seat (15) is installed on the lower surface of the landing gear connecting plate (2). The two ends of the variable pitch support rod (4) are connected to the lower ear seat (3) and the upper ear seat (15). The top of the variable pitch ball joint (5) is fixed to the landing gear connecting plate (2), and the bottom of the variable pitch ball joint (5) is fixed to the column (6).

2. The support device for snow blindness testing of unmanned helicopters according to claim 1, characterized in that, The variable pitch support rod (4) includes an internal thread rod end spherical bearing (7), a threaded sleeve (8), a screw (9), and a lug pin sleeve (10). The threaded sleeve (8) is connected to the internal thread rod end spherical bearing (7) on both sides through the screw (9). The lug pin sleeve (10) passes through the internal thread rod end spherical bearing (7) and cooperates with the lower lug (3) and the upper lug (15). The internal thread rod end spherical bearing (7) is fixed to the lower lug (3) and the upper lug (15) by a pin.

3. The support device for snow blindness testing of unmanned helicopters according to claim 1, characterized in that, The variable pitch ball joint (5) includes an outer spherical surface (11), an outer spherical surface cap (12), an inner spherical surface (13), and a fixing pin (14); the inner spherical surface (13) is provided with a fixing groove, and the fixing pin (14) passes through the outer spherical surface (11) and is inserted into the fixing groove of the inner spherical surface (13); the top of the inner spherical surface (13) is provided with a threaded hole connected to the landing gear connecting plate (2), the outer spherical surface (11) is provided with a hemispherical groove, the inner spherical surface (13) is placed in the hemispherical groove, the top of the outer spherical surface (11) is fixedly connected to the outer spherical surface cap (12) by bolts, and the bottom of the outer spherical surface (11) is fixedly connected to the column (6) by bolts.

4. The support device for snow blindness testing of unmanned helicopters according to claim 1, characterized in that, The angle adjustment block (1) has a symmetrical structure, with two angle adjustment blocks (1) enclosing the column (6).

5. The support device for snow blindness testing of unmanned helicopters according to claim 2, characterized in that, The minimum number of the variable pitch support rods (4) is three.

6. The support device for snow blindness testing of unmanned helicopters according to claim 1, characterized in that, The column (6) has an internal hollow structure.

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