A small unmanned aerial vehicle ground test low cost support structure

Abstract

The utility model discloses a small -size unmanned plane ground test low -cost support structure in the unmanned plane ground test technical field, including the bottom plate, the bottom plate is round and is arranged, the lower extreme of bottom plate is provided with the form wheel subassembly, be provided with height adjusting frame on the bottom plate, be provided with the outer frame on height adjusting frame, form the mounting groove on the outer frame, be provided with the lifting platform in the mounting groove, be provided with the hydraulic jack between the outer frame and lifting platform. The utility model discloses a hydraulic jack replaces traditional complex and expensive lifting adjusting structure, directly solves the fundamental pain point of numerous components, long production cycle, high cost in the prior art, and the hydraulic jack structure is simple, and the degree of standardization is high, not only greatly simplifies the manufacturing process, shortens the period from design to finished product, and because reduces a large number of customization and high-precision components, makes the overall cost to have obtained the effective control.

Description

Technical Field

[0001] This utility model relates to the field of UAV ground testing technology, and in particular to a low-cost support structure for ground testing of small UAVs. Background Technology

[0002] Unmanned aerial vehicles (UAVs), also known as drones, are aircraft that fly without a pilot, controlled remotely or autonomously. They integrate flight control systems, communication systems, power units, and various payloads, ranging in size from palm-sized micro-machines to large platforms weighing tens of tons, depending on their purpose. With advantages such as eliminating the need to consider the physiological limits of pilots, access to high-risk areas, and low operating costs, UAVs have permeated numerous fields including military reconnaissance, civilian aerial surveying, agricultural plant protection, logistics transportation, emergency rescue, and film and television production. They have become one of the disruptive technologies changing modern production and lifestyles, and continue to drive aerial operations towards greater efficiency and intelligence.

[0003] The existing UAV ground test support system is equipped with a number of support systems according to the structural requirements of each type of UAV to support the UAV. Its structure mainly includes: mechanical transmission system, lifting system, support bracket, position fine adjustment device, auxiliary support device, transition bracket, limit mechanism, etc. The mechanical transmission system provides motion and power for the entire lifting process; the lifting base transmits the load of three parallel pneumatic springs to a lead screw and nut mechanism, which consists of a base body, nut sleeve, transmission deformation compensation mechanism, casters and wheel frames, etc. The elastic support of the aircraft is achieved by controlling the pressure of the pneumatic springs.

[0004] However, existing technologies have some problems: In order to be compatible with different UAV models and test projects, existing UAV ground test support systems are designed as modular and reconfigurable assemblies, which means that they must contain a large number of special components such as height-adjustable brackets, multi-degree-of-freedom transfer platforms, complex locking mechanisms, and independent hydraulic / pneumatic power units. These components are diverse and require precise positioning and interface matching. Therefore, the installation process requires a high level of experience and precision from the operators and consumes a lot of time. Therefore, we propose a low-cost support structure for small UAV ground tests. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a low-cost support structure for ground testing of small unmanned aerial vehicles (UAVs). By changing the conventional, complex, and costly lifting and adjusting structure, a hydraulic jack is used instead of the traditional lifting structure, which greatly reduces the problems of long manufacturing cycle, high cost, and difficult installation. At the same time, the use of casters makes the support system easy to move and operate.

[0006] The purpose of this utility model is achieved as follows: a low-cost support structure for ground testing of small unmanned aerial vehicles (UAVs), including a base plate, the base plate being circular in shape, a fuma wheel assembly being provided at the lower end of the base plate, a height adjustment frame being provided on the base plate, an outer frame being provided on the height adjustment frame, an installation groove being formed on the outer frame, a lifting platform being provided in the installation groove, a hydraulic jack being provided between the outer frame and the lifting platform, a buffer assembly being provided on the lifting platform, and a support rod being provided on the buffer assembly for matching the UAV.

[0007] Optionally, the caster wheel assembly includes a connecting rod, the lower end of which is provided with a caster wheel, and a base is threaded onto the connecting rod. The caster wheel assembly is provided in multiple sets, and the multiple sets of caster wheel assemblies are evenly distributed.

[0008] Optionally, the height adjustment frame is bolted to the outer frame, and a thin plate is provided between the height adjustment frame and the outer frame to adjust the levelness of the outer frame.

[0009] Optionally, the lower end of the lifting platform is provided with an adjusting component, the adjusting component has a stroke groove, there are two adjusting components, the two adjusting components are symmetrically distributed, and the adjusting component fits into the mounting groove.

[0010] Optionally, the outer frame is provided with through holes, which are correspondingly provided with stroke grooves, and the through holes and stroke grooves are positioned by bolts.

[0011] Optionally, the buffer assembly includes an air spring, the lower end of which is bolted to the lifting platform, and the upper end of which is bolted to an upper blocking plate. The upper blocking plate is fixedly connected to a support rod, and an air hole is provided on the upper blocking plate, which communicates with the air chamber of the air spring.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By replacing the traditional complex and expensive lifting and adjusting structure with a hydraulic jack, the fundamental pain points of existing technologies, such as numerous parts, long production cycles, and high costs, are directly solved. The hydraulic jack has a simple structure and a high degree of standardization, which not only greatly simplifies the manufacturing process and shortens the cycle from design to finished product, but also effectively controls the overall cost by reducing a large number of customized and high-precision parts.

[0013] 2. The integrated Foma wheel transforms the support structure from a fixed platform into a flexible mobile workstation. Operators can easily push the entire support system without effort, enabling rapid positioning, handling, and transfer of UAVs. This improves the utilization efficiency of the test site and the convenience for operators, achieving four major goals: structural simplification, cost reduction, convenient installation, and flexible operation while ensuring test functionality. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure provided by this utility model.

[0016] Figure 2 This is a schematic diagram of the buffer component structure provided by this utility model.

[0017] Figure 3 This is a schematic diagram of the outer frame structure provided by this utility model.

[0018] Figure 4 This is a schematic diagram of the lifting platform structure provided by this utility model.

[0019] In the diagram: 1. Base plate; 2. Caster wheel assembly; 21. Connecting rod; 22. Caster wheel; 23. Foot; 3. Height adjustment frame; 4. Outer frame; 41. Mounting slot; 42. Through hole; 5. Lifting platform; 51. Adjusting component; 52. Stroke groove; 6. Hydraulic jack; 7. Buffer assembly; 71. Air spring; 72. Upper blocking plate; 73. Air hole; 8. Support rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1 to 4 The diagram shows a low-cost support structure for ground testing of a small unmanned aerial vehicle (UAV), comprising a base plate 1. The base plate 1 is circular, with a fuma wheel assembly 2 at its lower end. A height adjustment frame 3 is mounted on the base plate 1, and an outer frame 4 is mounted on the height adjustment frame 3. An installation groove 41 is formed on the outer frame 4, and a lifting platform 5 is installed within the installation groove 41. A hydraulic jack 6 is installed between the outer frame 4 and the lifting platform 5. A buffer assembly 7 is mounted on the lifting platform 5, and a support rod 8 is mounted on the buffer assembly 7 for calibrating the UAV.

[0022] Furthermore, firstly, the entire support system can move easily and freely on the ground via the fuma wheel assembly 2 at the bottom of the base plate 1, enabling rapid positioning and transfer. When test support is needed for the UAV, the operator secures the UAV to the lifting platform 5 via the support rod 8. At this time, the hydraulic jack 6 is activated, serving as the core power component, to push the lifting platform 5 vertically up and down along the guide rail mounting groove 41 formed on the inner wall of the outer frame 4 until the required test height for the UAV is reached, where bolts are used for fixing. The buffer assembly 7 on top of the lifting platform 5 absorbs minor vibrations and impacts during UAV take-off, landing, or testing, protecting the UAV's structural safety. After the test is completed, the hydraulic jack 6 retracts, the lifting platform 5 descends, and the operator can then move the support system again.

[0023] Specifically, the caster wheel assembly 2 includes a connecting rod 21, a universal wheel 22 is provided at the lower end of the connecting rod 21, and a base 23 is threaded onto the connecting rod 21. There are multiple sets of caster wheel assemblies 2, and the multiple sets of caster wheel assemblies 2 are evenly distributed.

[0024] Furthermore, the multiple evenly distributed caster wheel assemblies 2 ensure that the support system has extremely high stability and load balancing capabilities, effectively avoiding the risk of tipping over due to uneven weight distribution of the UAV or improper operation, thus ensuring test safety; secondly, the casters 22 give the system flexibility, allowing it to be easily pushed, turned or finely adjusted in any direction, improving the efficiency of transfer between different test areas. Finally, the adjustable feet 23 can be easily locked to fix the equipment. More importantly, when the ground is uneven, each support point can be independently fine-tuned by rotating the feet 23 to quickly level the entire support platform and ensure that the test platform is always in a horizontal state.

[0025] Specifically, the height adjustment frame 3 and the outer frame 4 are connected by bolts, and a thin plate is set between the height adjustment frame 3 and the outer frame 4 to adjust the levelness of the outer frame 4.

[0026] Furthermore, the design of bolting the height adjustment frame 3 to the outer frame 4 and using thin plates for leveling provides installation flexibility, long-term stability, and environmental adaptability. By adding, removing, or moving thin plates of different thicknesses, operators can perform millimeter-level precise leveling of the outer frame 4 to compensate for manufacturing tolerances, uneven ground, or minor deformations that may occur under heavy loads. This ensures that the test platform always remains absolutely level, guaranteeing not only the accuracy and reliability of test data but also effective protection for the safety of the UAV. Bolted connections provide a robust and rigid fixation, ensuring a stable and reliable state after leveling and preventing loosening during testing. This avoids the high manufacturing costs associated with pursuing overall high precision, instead adopting a "low-precision manufacturing + simple on-site assembly and adjustment" model. This significantly reduces production difficulty and overall cost while ensuring final performance.

[0027] Specifically, the lower end of the lifting platform 5 is provided with an adjusting component 51, and the adjusting component 51 is provided with a stroke groove 52. There are two adjusting components 51, which are symmetrically distributed. The adjusting component 51 fits into the mounting groove 41. The outer frame 4 is provided with a through hole 42, which is correspondingly provided with the stroke groove 52. The through hole 42 and the stroke groove 52 are positioned by bolts.

[0028] Furthermore, this design of dual adjustment components 51, combined with stroke groove 52 and bolt positioning, enables the lifting platform 5 to be finely adjusted and locked in the horizontal plane. By simultaneously loosening the bolts on the two adjustment components 51, the lifting platform 5 can be moved along the stroke groove 52 by the hydraulic jack 6, thereby achieving precise centering of the UAV's center of gravity and ensuring uniform force distribution. This is crucial for simulating real flight conditions and eliminating test errors caused by installation misalignment. Secondly, the symmetrically distributed dual adjustment components 51 greatly enhance the stability and reliability of the structure. The two-point support can effectively resist the lateral force or torque generated by the test, prevent the lifting platform 5 from shaking or deflecting, and ensure the safety of the entire test process.

[0029] Specifically, the buffer assembly 7 includes an air spring 71. The lower end of the air spring 71 is bolted to the lifting platform 5, and the upper end of the air spring 71 is bolted to an upper blocking plate 72. The upper blocking plate 72 is fixedly connected to the support rod 8. An air hole 73 is provided on the upper blocking plate 72, and the air hole 73 communicates with the air chamber of the air spring 71.

[0030] Furthermore, firstly, as an elastic element, the air spring 71 can provide highly nonlinear and precisely adjustable cushioning performance. By filling it with gas at different pressures, its stiffness can be flexibly set, thereby accurately simulating the ground impact and vibration loads experienced by the UAV in different flight stages or operating conditions, such as simulating the cushioning effect at the moment of landing or the ground vibration response during takeoff. This is far superior to the linear characteristics of traditional springs.

[0031] Secondly, the series design of the entire component creates a stable force transmission path, ensuring that the buffer force can be smoothly and efficiently transmitted to the entire test support structure; Finally, the air hole 73 on the upper blocking plate 72 serves as the only channel for air pressure regulation, making system maintenance and performance adjustment extremely convenient. Real-time fine-tuning of stiffness can be achieved without disassembling the entire set of equipment, greatly improving the flexibility of the test and the maintainability of the equipment.

[0032] Working principle: By replacing the traditional complex and expensive lifting and adjusting structure with a hydraulic jack 6, the fundamental pain points of existing technologies, such as numerous parts, long production cycle and high cost, are directly solved. The hydraulic jack 6 has a simple structure and a high degree of standardization, which not only greatly simplifies the manufacturing process and shortens the cycle from design to finished product, but also effectively controls the overall cost by reducing a large number of customized and high-precision parts.

[0033] Secondly, the integrated Foma wheel transforms the support structure from a fixed platform into a flexible mobile workstation, allowing operators to easily push the entire support system without effort. This enables rapid positioning, handling, and transfer of UAVs, improving the utilization efficiency of the test site and the convenience for operators. Under the premise of ensuring test functionality, it achieves four major goals: structural simplification, cost reduction, convenient installation, and flexible operation.

[0034] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A low-cost support structure for ground testing of small unmanned aerial vehicles, comprising a base plate (1), characterized in that: The base plate (1) is circular. A fuma wheel assembly (2) is provided at the lower end of the base plate (1). A height adjustment frame is provided on the base plate (1). An outer frame (4) is provided on the height adjustment frame (3). An installation groove (41) is formed on the outer frame (4). A lifting platform (5) is provided in the installation groove (41). A hydraulic jack (6) is provided between the outer frame (4) and the lifting platform (5). A buffer assembly (7) is provided on the lifting platform (5). A support rod (8) is provided on the buffer assembly (7) for matching UAVs.

2. The low-cost support structure for ground testing of small unmanned aerial vehicles according to claim 1, characterized in that: The caster wheel assembly (2) includes a connecting rod (21), and a caster wheel (22) is provided at the lower end of the connecting rod (21). A foot (23) is threaded onto the connecting rod (21). There are multiple sets of caster wheel assemblies (2), and the multiple sets of caster wheel assemblies (2) are evenly distributed.

3. The low-cost support structure for ground testing of small unmanned aerial vehicles according to claim 1, characterized in that: The height adjustment frame and the outer frame (4) are connected by bolts, and a thin plate is provided between the height adjustment frame and the outer frame (4) to adjust the levelness of the outer frame (4).

4. The low-cost support structure for ground testing of small unmanned aerial vehicles according to claim 1, characterized in that: The lower end of the lifting platform (5) is provided with an adjusting component (51), and the adjusting component (51) is provided with a stroke groove (52). There are two adjusting components (51), and the two adjusting components (51) are symmetrically distributed. The adjusting component (51) fits into the mounting groove (41).

5. The low-cost support structure for ground testing of a small unmanned aerial vehicle (UAV) according to claim 1, characterized in that: The outer frame (4) has a through hole (42) and a stroke groove (52) are provided. The through hole (42) and the stroke groove (52) are positioned by bolts.

6. The low-cost support structure for ground testing of a small unmanned aerial vehicle (UAV) according to claim 1, characterized in that: The buffer assembly (7) includes an air spring (71), the lower end of which is bolted to the lifting platform (5), and the upper end of which is bolted to an upper blocking plate (72). The upper blocking plate (72) is fixedly connected to the support rod (8), and an air hole (73) is provided on the upper blocking plate (72). The air hole (73) communicates with the air chamber of the air spring (71).

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