UAV arm mounting structure

Abstract

This utility model relates to an arm mounting structure for unmanned aerial vehicles (UAVs), including a mounting bracket with an auxiliary mounting mechanism on the outside and an angle marking mechanism at the bottom. By providing the auxiliary mounting mechanism, this utility model effectively improves the fastening stability during the installation of the UAV arm and its safety and reliability during use. The nut, limiting washer, locking plate, marking rod, and baffle in the auxiliary mounting mechanism work together to achieve rapid fixing during tightening. Furthermore, the marking mechanism between the marking rod and the display ring enables intuitive identification of displacement. When the position shifts due to loose nuts or changes in force on the UAV arm, the mark left by the marking rod on the display ring provides a real-time warning, facilitating timely maintenance and resetting by the user, effectively avoiding flight abnormalities or even safety risks caused by loosening.

Description

Technical Field

[0001] This utility model relates to the field of drone installation technology, and in particular to a drone arm installation structure. Background Technology

[0002] The UAV arm mounting structure refers to an installation mechanism used to mechanically connect, fix, and adjust the UAV's arm, also known as a support arm or bearing arm, to the airframe structure. This structure is usually located on the edge of the UAV's airframe and is used to support and connect key flight components such as rotor motors and propellers. Its installation accuracy and stability directly affect the UAV's flight performance, structural reliability, and ease of maintenance.

[0003] In practice, some problems still exist:

[0004] 1. Most drones on the market use traditional bolt or clip-on fixing methods for their arm mounting structure. During assembly, the tightening is mainly done manually and the tightness is judged by visual inspection. However, this type of structure is susceptible to vibration, impact, or long-term load during use, which can lead to problems such as loose nuts and fastening failure. Once the arm shifts, it will not only affect the stability of the flight attitude, but may also cause serious failures such as structural loosening and propeller interference. Most existing devices lack effective installation offset detection and early warning mechanisms. Maintenance personnel can usually only rely on experience to conduct periodic inspections, which poses risks such as untimely maintenance and hidden faults. In addition, some fastening structures are difficult to limit the stroke after loosening, which can easily lead to excessive slippage or component dislocation, causing safety hazards.

[0005] 2. In the structure of multi-rotor UAVs, the precise alignment of the arm installation angle has a significant impact on flight attitude, dynamic balance and navigation accuracy. Traditional arm installation relies heavily on manual adjustment and experience judgment, lacking a dedicated angle indication structure. Especially when multiple arms are assembled at the same time, inconsistencies in installation angles are very likely to occur, which can lead to yaw, attitude imbalance or abnormal power distribution during flight, affecting the overall operating efficiency and flight safety. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the aforementioned problems in the prior art, this utility model provides an arm mounting structure for unmanned aerial vehicles (UAVs), which solves the problems of high risk of loose arm fastening and lack of an indicator structure for arm angle alignment in traditional UAVs.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the main technical solution adopted by this utility model is as follows:

[0010] A drone arm mounting structure includes a mounting bracket. An auxiliary mounting mechanism is provided on the outside of the mounting bracket, and an angle marking mechanism is provided at the bottom of the mounting bracket. The auxiliary mounting mechanism includes a nut, a limiting washer, a locking plate, a marking rod, and a baffle. The baffle is fixedly connected to the inner wall of the limiting washer. The bottom end of the nut is attached to the top end of the limiting washer. The bottom end of the locking plate is fixedly connected to the mounting plate, and the bottom end of the mounting plate is fixedly connected to the marking rod.

[0011] The mounting bracket has an inner groove, a screw at the bottom, and a drone arm body inserted into the inner side of the mounting bracket. The top of the screw passes through the drone arm body and the mounting groove, and a propeller is connected to the top of the drone arm body.

[0012] The screw is fitted with a protective gasket inside, and the protective gasket is attached to the bottom of the mounting bracket.

[0013] The nut is threaded to the top of the bolt, and a slot is provided on the outer side of the nut. The locking plate is vertically slidably connected to the inner wall of the slot.

[0014] Locking balls are fixedly connected to both sides of the locking plate, and locking holes are provided on both sides of the inner wall of the slot. The size of the locking balls and the locking holes are matched.

[0015] The inner wall of the limiting pad is fixedly connected to a display ring, and the bottom end of the marking rod is attached to the top end of the display ring.

[0016] An angle plate is fixedly connected to the outer wall of the mounting bracket, and a connecting rod is fixedly connected to the bottom end of the UAV arm body.

[0017] A fixing plate is fixedly connected to the bottom end of the connecting rod, and an indicator plate is fixedly connected to one end of the fixing plate.

[0018] (III) Beneficial Effects

[0019] The beneficial effects of this utility model are:

[0020] 1. In this utility model, by setting an auxiliary installation mechanism, the fastening stability during the installation of the UAV arm body and the safety and reliability during use are effectively improved. The nuts, limiting washers, locking plates, marking rods and baffles in the auxiliary installation mechanism work together to not only achieve quick fixation when tightening, but also achieve intuitive identification of displacement deviation through the contact marking mechanism between the marking rod and the display ring. When the position shifts due to loose nuts or changes in the force on the UAV arm body, the mark left by the marking rod on the display ring can provide real-time warning, which is convenient for users to maintain and reset in time, effectively avoiding flight abnormalities or even safety risks caused by loosening. In addition, the baffle set inside the limiting washers can also form a physical limit when the installation plate displacement is too large, preventing the installation components from falling off or slipping, further improving the reliable protective performance of the structure. Through this auxiliary mechanism, not only is efficient installation and rapid testing of the UAV arm body achieved, but the stability and maintenance convenience of the structure under long-term use or complex working conditions are also enhanced, which has significant practical value.

[0021] 2. In this utility model, by setting an angle marking mechanism, the angle alignment and attitude consistency control of the UAV arm body during the installation process are further optimized. The angle marking mechanism consists of an angle plate fixed to the outer wall of the mounting bracket, a connecting rod and an indicator plate set at the bottom of the UAV arm body. It can achieve calibration and docking after the UAV arm body is inserted into the mounting slot. Through the scale cooperation between the indicator plate and the angle plate, the operator can accurately observe and adjust the installation angle of the UAV arm body, realize synchronous alignment between multiple UAV arm bodies, improve the overall flight stability and operational sensitivity of the UAV. This structure is particularly suitable for application scenarios such as multi-rotor aircraft where the installation accuracy of the UAV arm body is high. It can effectively avoid flight yaw or attitude imbalance caused by angle errors. In addition, the mechanism has a simple structure and clear markings, which facilitates quick on-site operation and repeated positioning. It not only reduces manual alignment errors, but also improves assembly efficiency and consistency of later maintenance, which helps to ensure the stable performance of the overall UAV. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a structural schematic diagram of one side of the mounting bracket of this utility model;

[0024] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a partial structural cross-sectional view of the mounting bracket of this utility model;

[0026] Figure 5This is a schematic diagram of the structure of the limiting gasket part of this utility model;

[0027] Figure 6 For the present utility model Figure 5 Enlarged view of section B in the middle.

[0028] [Explanation of Labels in the Attached Image]

[0029] 1. Mounting bracket; 2. Propeller blade; 3. UAV arm body; 4. Auxiliary mounting mechanism; 401. Mounting slot; 402. Screw; 403. Nut; 404. Slot; 405. Mounting plate; 406. Baffle; 407. Display ring; 408. Limiting washer; 409. Locking plate; 410. Locking ball; 411. Locking hole; 412. Protective washer; 413. Marking rod; 5. Angle marking mechanism; 501. Connecting rod; 502. Angle plate; 503. Fixing plate; 504. Indicator plate. Detailed Implementation

[0030] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Please refer to Figures 1 to 6 As shown, the UAV arm mounting structure of this utility model includes a mounting bracket 1, an auxiliary mounting mechanism 4 on the outside of the mounting bracket 1, and an angle marking mechanism 5 at the bottom of the mounting bracket 1. The auxiliary mounting mechanism 4 includes a nut 403, a limiting washer 408, a locking plate 409, a marking rod 413, and a baffle 406. The baffle 406 is fixedly connected to the inner wall of the limiting washer 408. The bottom end of the nut 403 is attached to the top end of the limiting washer 408. The bottom end of the locking plate 409 is fixedly connected to the mounting plate 405, and the bottom end of the mounting plate 405 is fixedly connected to the marking rod 413.

[0032] Optionally, the mounting bracket 1 has a mounting groove 401 on its inner side, a screw 402 at its bottom, and a drone arm body 3 inserted into the inner side of the mounting bracket 1. The top of the screw 402 passes through the drone arm body 3 and the mounting groove 401, and a propeller 2 is connected to the top of the drone arm body 3. In actual implementation, the user can insert the drone arm body 3 into the mounting groove 401 on the inner side of the mounting bracket 1, and fix it by the screw 402 from the bottom through the drone arm body 3 and the mounting groove 401, ensuring accurate positioning and uniform axial force during installation, effectively improving the stability of the structure and the efficiency of repeated assembly.

[0033] Optionally, a protective gasket 412 is fitted inside the screw 402, and the protective gasket 412 is attached to the bottom end of the mounting bracket 1. In actual implementation, when assembling the screw 402, the protective gasket 412 is fitted onto its exterior and attached to the bottom end of the mounting bracket 1, effectively buffering the hard contact between the screw 402 and the bracket, and reducing local wear and structural fatigue caused by assembly or vibration.

[0034] Optionally, the nut 403 is threaded to the top of the bolt, and a slot 404 is provided on the outer side of the nut 403. A locking plate 409 is vertically slidably connected to the inner wall of the slot 404. In actual implementation, when the user tightens the nut 403, the slot 404 on its outer side can form a vertical sliding engagement with the locking plate 409. The locking plate 409 can move vertically along the slot 404 as the nut 403 rotates, thereby driving the lower component to achieve further calibration and locking functions.

[0035] Optionally, locking balls 410 are fixedly connected to both sides of the locking plate 409, and locking holes 411 are provided on both sides of the inner wall of the slot 404. The sizes of the locking balls 410 and the locking holes 411 are matched. In actual implementation, when the locking plate 409 slides to the designated position, the locking balls 410 fixed on both sides will automatically spring into the locking holes 411 provided on the inner wall of the slot 404, realizing automatic positioning and quick locking of the structure.

[0036] Optionally, a display ring 407 is fixedly connected to the inner wall of the limiting gasket 408, and the bottom end of the marker rod 413 is attached to the top end of the display ring 407. In actual implementation, when the locking plate 409 slides to the designated position, the locking balls 410 fixed on both sides will automatically spring into the locking holes 411 provided on the inner wall of the slot 404, realizing automatic positioning and quick locking of the structure.

[0037] Optionally, an angle plate 502 is fixedly connected to the outer wall of the mounting bracket 1, and a connecting rod 501 is fixedly connected to the bottom of the drone arm body 3. In actual implementation, the angle plate 502 fixed to the outer wall of the mounting bracket 1 can be used in conjunction with the connecting rod 501 connected to the bottom of the drone arm body 3. During installation, the angle of the indicator plate 504 below is controlled by the connecting rod 501 to achieve intuitive display and correction of the angle. This structure can help operators quickly complete the synchronous alignment of the angles of multiple drone arm bodies 3.

[0038] Optionally, a fixing plate 503 is fixedly connected to the bottom end of the connecting rod 501, and an indicator plate 504 is fixedly connected to one end of the fixing plate 503. In actual implementation, the fixing plate 503 is fixedly connected to the bottom end of the connecting rod 501, and an indicator plate 504 is provided at one end of the fixing plate 503. During use, the indicator plate 504 is attached to the surface of the angle plate 502 to indicate the corresponding scale value, thereby indicating the current installation angle of the UAV arm body 3. The indicator plate 504 has a simple structure, is easy to read, and can be adjusted and repositioned without relying on electronic devices, making it suitable for rapid assembly needs in field environments.

[0039] Working principle: The auxiliary installation mechanism 4 includes a nut 403, a limiting washer 408, a locking plate 409, a marking rod 413, and a baffle 406. Through their coordinated operation, it achieves stable fixation and displacement warning for the installation state of the UAV arm body 3. Specifically, when the operator rotates the nut 403 during installation, the bottom end of the nut 403 will gradually press against the top end of the limiting washer 408. Since the inner wall of the limiting washer 408 is fixedly connected to the baffle 406 structure, it can provide a fixed stop support. As the nut 403 rotates, its outer slot 404 slides and engages with the locking plate 409. At this time, the locking plate 409 will move vertically in sync, thereby driving the UAV arm body 3 to move vertically. The mounting plate 405 connected to its bottom moves axially, and a marking rod 413 is fixedly connected to the bottom end of the mounting plate 405. The marking rod 413 will then adhere to the top of the display ring 407. When displacement deviation occurs during installation due to loose nuts 403 or changes in the load on the UAV arm body 3, the marking rod 413 will leave a movement trajectory on the display ring 407, thus visually indicating whether the current installation status has changed. This structure not only completes the fastening but also has the functions of monitoring marking and manual calibration, improving the reliability of the assembly and maintenance of the UAV arm body 3. Furthermore, the auxiliary installation mechanism 4 will automatically provide a clear offset reminder when nuts 403 are loose. When the mounting plate 405 reverses due to loosening, the structure connecting it to the locking plate 409 will drive the mounting plate 405 to slide in the opposite direction. The marker rod 413 will then form irregular offset marks on the surface of the display ring 407. Maintenance personnel can observe these marks to determine whether the UAV arm body 3 structure has experienced displacement instability. Simultaneously, to prevent excessive displacement of the mounting plate 405 due to loosening and slippage, which could affect structural safety, this structure is equipped with an integrated baffle 406. This baffle 406 is fixedly connected to the inner wall of the limiting pad 408. When the mounting plate 405 moves beyond the predetermined stroke, its side will directly contact the baffle 406, thus forming a physical limiting barrier and effectively preventing the mounting plate 405 from... Its connecting parts may dislodge or even collapse, and the display ring 407 and the display surface are located at the bottom of the mounting bracket 1, making the structure compact and easy to observe. In addition, the angle marking mechanism 5 is set at the bottom and outer wall of the mounting bracket 1, including a fixed angle plate 502 and a connecting rod 501 and an indicator plate 504 located at the bottom of the drone arm body 3. After the drone arm body 3 is inserted into the mounting slot 401, its connecting rod 501 drives the indicator plate 504 to cooperate with the surface of the angle plate 502. The indicator plate 504 displays the current installation angle of the drone arm body 3 in the form of a scale, which is convenient for the operator to make precise adjustments and remember the angle, thereby achieving the assembly requirement of consistent alignment of multiple drone arm bodies 3.

[0040] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.

[0041] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A drone arm mounting structure comprising a mounting bracket (1), characterized in that: An auxiliary installation mechanism (4) is provided on the outside of the mounting bracket (1). An angle marking mechanism (5) is provided at the bottom of the mounting bracket (1). The auxiliary installation mechanism (4) includes a nut (403), a limiting washer (408), a locking plate (409), a marking rod (413), and a baffle (406). The baffle (406) is fixedly connected to the inner wall of the limiting washer (408). The bottom end of the nut (403) is attached to the top end of the limiting washer (408). The bottom end of the locking plate (409) is fixedly connected to the mounting plate (405). The bottom end of the mounting plate (405) is fixedly connected to the marking rod (413).

2. The drone arm mounting structure according to claim 1, characterized by: The mounting bracket (1) has an inner groove (401) and a screw (402) at the bottom. The UAV arm body (3) is inserted into the inner side of the mounting bracket (1). The top of the screw (402) passes through the UAV arm body (3) and the mounting groove (401). The top of the UAV arm body (3) is connected to a propeller (2).

3. The drone arm mounting structure according to claim 2, characterized by: The screw (402) is fitted with a protective gasket (412) inside, and the protective gasket (412) is attached to the bottom end of the mounting bracket (1).

4. The robot arm mounting structure for a drone according to claim 3, characterized by: The nut (403) is threaded to the top of the bolt, and a slot (404) is provided on the outer side of the nut (403). The locking plate (409) is vertically slidably connected to the inner wall of the slot (404).

5. The drone arm mounting structure according to claim 4, characterized by: Locking balls (410) are fixedly connected to the two side walls of the locking plate (409), and locking holes (411) are provided on both sides of the inner wall of the slot (404). The sizes of the locking balls (410) and the locking holes (411) are matched.

6. The robot arm mounting structure for a drone according to claim 5, characterized by: The inner wall of the limiting pad (408) is fixedly connected to a display ring (407), and the bottom end of the marking rod (413) is attached to the top end of the display ring (407).

7. The drone arm mounting structure according to claim 6, characterized by: An angle plate (502) is fixedly connected to the outer wall of the mounting bracket (1), and a connecting rod (501) is fixedly connected to the bottom end of the UAV arm body (3).

8. The robot arm mounting structure for a drone according to claim 7, characterized by: A fixing plate (503) is fixedly connected to the bottom end of the connecting rod (501), and an indicator plate (504) is fixedly connected to one end of the fixing plate (503).

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