Waterproof unmanned aerial vehicle fuselage pneumatic sealing structure

Abstract

The utility model discloses a waterproof type unmanned aerial vehicle fuselage pneumatic sealing structure which comprises a fuselage body, a lower fuselage is installed below the fuselage body, an upper opening ring is integrally connected to the bottom of the fuselage body, a sealing gasket is fixedly bonded to the outer wall of the upper opening ring, a lower opening ring is integrally arranged on the surface of the top of the lower fuselage, and a sealing gasket is fixedly bonded to the outer wall of the lower opening ring. A groove is formed in the lower opening ring, and an oil groove is formed in the inner wall of the groove; the machine body and the lower machine body are both of an integrally-formed structure, joints and gaps on the surface of the machine body are reduced, the problem that water easily enters the machine body due to the fact that the surface structure of the machine body is complex is solved, and the machine body and the lower machine body are connected through a threaded connection structure between the upper opening ring and the lower opening ring. After the upper opening ring and the lower opening ring are connected, the upper opening ring is embedded into the inner groove of the lower opening ring, and the sealing gasket increases the sealing performance between the upper opening ring and the lower opening ring.

Description

Technical Field

[0001] This utility model relates to the field of waterproof drone technology, specifically a waterproof drone fuselage aerodynamic sealing structure. Background Technology

[0002] Unmanned aerial vehicles (UAVs) are unmanned aircraft controlled by radio remote control equipment and their own program control devices, or operated autonomously, either completely or intermittently, by onboard computers. With the development of UAV technology, they offer greater flexibility, safety, and efficiency compared to traditional manual patrols in maritime patrols and flood control operations. However, traditional UAV patrols are often affected by weather conditions. For example, rain can easily cause water to enter the internal components of the UAV, leading to short circuits and malfunctions. Similarly, when patrolling on water, waves can wet the UAV, causing water ingress and short circuits, requiring repairs. Therefore, higher requirements are placed on the waterproofing of UAVs to ensure their safety during water and rainy weather patrols, while also ensuring stable flight.

[0003] A waterproof drone, disclosed in publication number CN219097000U, includes a drone body with a waterproof structure on its upper surface and cushioning structures on its left and right sides. The waterproof structure includes two threaded blocks fixedly connected to the upper surface of the drone body. Each threaded block has a threaded groove on its upper surface, and a threaded shaft is threaded to the inner side of each groove. A connecting block is fixedly connected to the top of each threaded shaft, and a fixing bolt is threaded to the opposite side of each connecting block. A plug is threaded to the opposite end of each fixing bolt. This waterproof drone prevents external water, such as rainwater, from entering the drone's casing through its waterproof structure, thus preventing water damage to the drone's electronic components. The cushioning structures also buffer the impact force between the drone and the ground during landing or forced landing.

[0004] Existing waterproof drones typically add a waterproof cover to the outside to achieve their waterproof function. This is mainly achieved by setting up specific waterproof structures on the outside of the drone. However, due to the irregular shape of the drone's fuselage and the presence of complex structures such as rotors, completely encasing the entire fuselage in a waterproof cover is not feasible. The coverage area of ​​the waterproof cover is often limited and cannot completely cover all areas where water may enter. Since the drone's fuselage is not designed as a single piece, there are many gaps and seams on the surface. These gaps and seams affect the overall waterproof performance of the drone to some extent. To improve the waterproof effect, additional sealing treatment is needed at these gaps and seams to ensure that water molecules cannot enter the drone through these tiny openings. However, this sealing treatment increases the complexity of design and manufacturing and may also have a certain impact on the overall weight and flight performance of the drone.

[0005] Therefore, those skilled in the art have provided a waterproof aerodynamic sealing structure for the fuselage of a drone to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to provide a waterproof drone fuselage aerodynamic sealing structure to solve the problem mentioned in the background art that the existing waterproof drone fuselage structure has poor overall integrity and is not conducive to centralized sealing.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A waterproof unmanned aerial vehicle (UAV) fuselage pneumatic sealing structure includes: a fuselage body, a lower fuselage mounted below the fuselage body, an upper ring integrally connected to the bottom of the fuselage body, and a sealing gasket fixedly bonded to the outer wall of the upper ring; a lower ring integrally formed on the top surface of the lower fuselage, a groove provided inside the lower ring, an oil groove provided on the inner wall of the groove, a sealing strip wrapped around the groove and the outer edge of the upper ring, an oil injection port penetrating inside the sealing strip, an oil seal injection tube installed inside one end of the oil injection port, and an air inlet provided on the outer wall of the lower ring.

[0009] As a further embodiment of this utility model: mounting brackets are fixedly installed at the four corners of the main body, and blades are rotatably installed at one end of the mounting brackets. Support brackets are fixedly installed at the bottom of the mounting brackets. Cameras are installed on the outer wall of the lower body, and heat sinks are installed on the outer wall of the lower body.

[0010] As a further solution of the utility model: The upper mouth ring and the lower mouth ring are connected by threads, and the external structure size of the upper mouth ring matches the internal structure size of the groove inside the lower mouth ring.

[0011] As a further solution of the utility model: The external structure shape of the oil groove is in a shape of a double square, and the oil groove is interconnected with the oil seal injection pipe.

[0012] As a further solution of the utility model: One end of the sealing strip is integrally connected with an extended head, a groove is arranged on the inner wall of the sealing strip, and a glue injection groove is fixedly opened on the surface of one end of the sealing strip.

[0013] As a further solution of the utility model: An upper sandwich layer is integrally arranged inside the fuselage body, and a lower sandwich layer is integrally arranged on the inner wall of the lower fuselage.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] Both the fuselage body and the lower fuselage are integrally formed structures, reducing the joints and gaps on the surface of the fuselage, avoiding the problem that the surface structure of the fuselage body is relatively complex and prone to water ingress. The connection between the fuselage body and the lower fuselage is completed through the threaded connection structure between the upper mouth ring and the lower mouth ring. After the upper mouth ring and the lower mouth ring are connected, the upper mouth ring is embedded into the internal groove of the lower mouth ring. The sealing gasket increases the sealing performance between the upper mouth ring and the lower mouth ring, and nitrogen is filled through the inflation port by connecting an inflation device. Nitrogen is used to fill the groove, thereby sealing the gap between the upper mouth ring and the lower mouth ring, and then forming a gas barrier, which is beneficial to achieving pneumatic sealing. At the same time, lubricating oil is injected into the groove through the oil seal injection pipe, and the inner wall of the groove is provided with a double-square oil groove. The lubricating oil is injected into the oil groove, and then oil seal is realized under the floating top of nitrogen, avoiding gas leakage, thereby improving the pneumatic sealing effect, achieving centralized sealing on the fuselage, and avoiding multiple sealing treatments on the fuselage, reducing complexity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a pneumatic sealing structure of a waterproof UAV fuselage.

[0017] Figure 2 It is a schematic exploded structural diagram of the fuselage body and the lower fuselage in a pneumatic sealing structure of a waterproof UAV fuselage.

[0018] Figure 3 It is a schematic structural diagram of an upper mouth ring in a pneumatic sealing structure of a waterproof UAV fuselage.

[0019] Figure 4 It is a schematic structural diagram of a sealing strip in a pneumatic sealing structure of a waterproof UAV fuselage.

[0020] Figure 5 This is a schematic diagram of the internal cross-sectional structure of the fuselage body and lower fuselage in a waterproof unmanned aerial vehicle (UAV) fuselage aerodynamic sealing structure.

[0021] Figure 6 This is a cross-sectional schematic diagram of a groove in a waterproof drone fuselage aerodynamic sealing structure.

[0022] In the diagram: 1. Main body; 2. Mounting bracket; 3. Blade; 4. Support leg; 5. Lower body; 6. Camera; 7. Upper opening ring; 8. Sealing gasket; 9. Lower opening ring; 10. Groove; 11. Inflation port; 12. Sealing strip; 13. Oil seal injection tube; 14. Encasing groove; 15. Extension cap; 16. Glue injection groove; 17. Oil injection port; 18. Heat sink; 19. Upper interlayer; 20. Lower interlayer; 21. Oil tank. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-6 This utility model provides a waterproof drone fuselage aerodynamic sealing structure, including: fuselage body 1, a lower fuselage 5 installed below fuselage body 1, mounting brackets 2 fixedly installed at the four corners of fuselage body 1, and blades 3 rotatably installed at one end of mounting brackets 2, support brackets 4 fixedly installed at the bottom of mounting brackets 2, cameras 6 installed on the outer wall of lower fuselage 5, heat sinks 18 installed on the outer wall of lower fuselage 5, an upper interlayer 19 integrally provided inside fuselage body 1, and a lower interlayer 20 integrally provided on the inner wall of lower fuselage 5;

[0025] Specifically, a sandwich structure is provided on the inner wall of both the fuselage body 1 and the lower fuselage 5. The sandwich structure is set at the edge of the inner wall of the fuselage body 1 and the lower fuselage 5 to isolate the outer wall of the fuselage body 1 and the lower fuselage 5. The core electronic components and chip devices of the drone inside the fuselage body 1 are installed inside the sandwich structure. Water will not directly affect the core components of the drone through the sandwich structure, thus further playing a role in waterproof protection.

[0026] The bottom of the main body 1 is integrally connected with an upper ring 7, and a sealing gasket 8 is fixedly bonded to the outer wall of the upper ring 7. The top surface of the lower body 5 is integrally provided with a lower ring 9. The lower ring 9 has a groove 10 inside, and an oil groove 21 is provided on the inner wall of the groove 10. A sealing strip 12 is provided around the groove 10 and the outer edge of the upper ring 7. An oil injection port 17 is provided through the sealing strip 12. An oil seal injection tube 13 is installed inside one end of the oil injection port 17. The lower ring 9... An air inlet 11 is provided on the outer wall. The upper ring 7 and the lower ring 9 are connected by a thread. The external structural dimensions of the upper ring 7 match the internal structural dimensions of the groove 10 inside the lower ring 9. The external structural shape of the oil groove 21 is U-shaped. The oil groove 21 is connected to the oil seal injection tube 13. One end of the sealing strip 12 is integrally connected with an extension head 15. The inner wall of the sealing strip 12 is provided with a groove 14. One end of the sealing strip 12 is fixedly provided with an injection groove 16.

[0027] Specifically, the machine body 1 is connected to the lower machine body 5 using the threaded connection structure between the upper ring 7 and the lower ring 9. During the screwing process, the upper ring 7 gradually embeds into the groove 10 inside the lower ring 9. The sealing gasket 8 on the surface of the upper ring 7 fits against the inner wall of the groove 10. After the upper ring 7 is embedded in the groove 10, the outer edges of the upper ring 7 and the lower ring 9 are wrapped around the inner wall of the sealing strip 12 using the groove 14. The sealing strip 12 wraps around the outer edges of the upper ring 7 and the lower ring 9, and the other end of the sealing strip 12 is wrapped with the extended end 15. Adhesive is then injected from the injection groove 16. Seal the connection of the sealing strip 12 with sealant. Unscrew the sealing cap of the inflation port 11 and connect the external inflation device. Inflate nitrogen through the inflation port 11 and fill the groove 10 with nitrogen to seal the gap between the upper ring 7 and the lower ring 9, thus forming a gas barrier to facilitate pneumatic sealing. At the same time, inject lubricating oil into the U-shaped oil groove 21 by connecting the oil seal injection tube 13 to the oil inlet 17. The oil groove 21 forms an oil seal on the nitrogen floating top to prevent gas leakage. After the oil seal is completed, remove the oil seal injection tube 13 and seal the oil inlet 17 with the sealing cap.

[0028] Working principle: When using this utility model, firstly, the drone's fuselage 1 flies via blades 3 on the mounting bracket 2. During this process, when the drone falls, it is supported and cushioned by the footrests 4 to prevent the fuselage 1 from directly contacting the ground, thus preventing damage. When the drone is working, its camera 6 can record video. At the same time, the heat sink 18 dissipates heat from the drone fuselage to ensure its normal operation. When installing the drone fuselage, waterproof sealing is required. The fuselage 1 is connected to the lower fuselage 5 using a threaded connection structure between the upper ring 7 and the lower ring 9. During the screwing process, the upper ring 7 gradually penetrates into the groove 10 inside the lower ring 9, and the sealing gasket 8 on the surface of the upper ring 7 fits against the inner wall of the groove 10. The inner wall surface of the groove 10 is recessed downwards to leave space for nitrogen to be injected for sealing. When the upper ring 7 is embedded in the groove 10... Next, the sealing strip 12 is wrapped around the outer edges of the upper ring 7 and lower ring 9 using the groove 14 on the inner wall of the sealing strip 12. The sealing strip 12 will wrap around the outer edges of the upper ring 7 and lower ring 9. The other end of the sealing strip 12 is wrapped with the extension end 15. Then, sealant is poured into the injection groove 16 to seal the connection of the sealing strip 12. Next, the sealing cap of the inflation port 11 is unscrewed, and nitrogen is injected through the inflation port 11 connected to the inflation device. Gas is used to fill the groove 10, thereby sealing the gap between the upper ring 7 and the lower ring 9, thus forming a gas barrier. This gas barrier is conducive to achieving pneumatic sealing, thereby improving the performance and safety of the UAV. The oil seal injection tube 13 is connected to the oil inlet 17, and lubricating oil is injected into the U-shaped oil groove 21. The oil seal is achieved through the oil groove 21 and the nitrogen floating top. After the oil seal is completed, the oil seal injection tube 13 is pulled out, and the oil inlet 17 is sealed with a sealing cap to ensure its sealing performance.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A waterproof unmanned aerial vehicle fuselage aerodynamic sealing structure, characterized in that, Comprising: The fuselage body (1), a lower fuselage (5) is installed below the fuselage body (1), the bottom of the fuselage body (1) is integrally connected with an upper mouth ring (7), and a sealing gasket (8) is fixedly adhered to the outer wall of the upper mouth ring (7). The top surface of the lower fuselage (5) is integrally provided with a lower mouth ring (9). A groove (10) is provided inside the lower mouth ring (9), and an oil groove (21) is provided on the inner wall of the groove (10). A sealing strip (12) is wrapped around the outer edges of the groove (10) and the upper mouth ring (7). An oil injection port (17) is penetrated through the sealing strip (12). An oil seal injection pipe (13) is installed inside one end of the oil injection port (17). An inflation port (11) is provided on the outer wall of the lower mouth ring (9).

2. The waterproof unmanned aerial vehicle body aerodynamic sealing structure according to claim 1, characterized in that, Mounting brackets (2) are fixedly installed at the four corners of the fuselage body (1), and blades (3) are rotatably installed at one end of the mounting brackets (2). Support legs (4) are fixedly installed at the bottom of the mounting brackets (2). A camera (6) is installed on the outer wall of the lower fuselage (5), and heat sinks (18) are installed on the outer wall of the lower fuselage (5).

3. The waterproof unmanned aerial vehicle body aerodynamic sealing structure according to claim 1, characterized in that, The upper mouth ring (7) and the lower mouth ring (9) are in threaded connection, and the external structure dimensions of the upper mouth ring (7) match the internal structure dimensions of the groove (10) inside the lower mouth ring (9).

4. The waterproof unmanned aerial vehicle body aerodynamic sealing structure according to claim 1, characterized in that, The external structure shape of the oil groove (21) is in a square shape with a hole in the middle, and the oil groove (21) is interconnected with the oil seal injection pipe (13).

5. The waterproof unmanned aerial vehicle body aerodynamic sealing structure according to claim 1, characterized in that, One end of the sealing strip (12) is integrally connected with an extended head (15). A wrapping groove (14) is provided on the inner wall of the sealing strip (12). A glue injection groove (16) is fixedly opened on the surface of one end of the sealing strip (12).

6. The waterproof unmanned aerial vehicle body aerodynamic sealing structure according to claim 1, characterized in that, An upper interlayer (19) is integrally provided inside the fuselage body (1), and a lower interlayer (20) is integrally provided on the inner wall of the lower fuselage (5). It should be noted that in the translation of , "呈回字形" is translated as "in a square shape with a hole in the middle" to more accurately express its shape. If there are more specific requirements or corrections for this expression, it can be adjusted accordingly.

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