A drone for enclosed space facility detection

By designing a drone with a support frame, airbag, stabilization mechanism, transparent protective cover, and wiping cotton, the problem of drone damage due to water fall during facility inspection in enclosed spaces has been solved. This design achieves drone buoyancy and stability, equipment protection, and ensures clear camera footage.

CN118811133BActive Publication Date: 2026-06-19SHANGHAI RESEARCH INSTITUTE OF BUILDING SCIENCES CO LTD +2

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI RESEARCH INSTITUTE OF BUILDING SCIENCES CO LTD
Filing Date
2024-08-02
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing drones are easily damaged by falling into water when inspecting enclosed facilities, and cannot effectively protect cameras and internal equipment.

Method used

A drone comprising a support frame, airbags, an air pump, a stabilizing mechanism, a transparent protective cover, and a wiping cotton has been designed. The airbags float the drone, the stabilizing mechanism stabilizes it, the transparent protective cover protects the camera, and the wiping cotton cleans it, ensuring that the drone can float and stabilize after falling into water, thus protecting its internal equipment.

Benefits of technology

This effectively prevents drones from being damaged by falling into water, ensuring the integrity of the equipment and clear camera footage, and improving the reliability of drones for facility inspection in enclosed spaces.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of unmanned aerial vehicle (UAV) technology, and more particularly to a UAV for inspecting enclosed space facilities. The technical problem of this invention is to provide a UAV capable of protecting itself during the inspection of enclosed space facilities. The technical solution is as follows: A UAV for inspecting enclosed space facilities includes a UAV body, a support frame, a protective frame, a camera, an emergency stop switch, an air pump, etc.; the support frame is located at the bottom of the UAV body, and protective frames are symmetrically located on both sides of the UAV body, front and back, to protect the UAV's fan blades and prevent them from colliding with the inner wall of the pipe. A camera is located at the top of the UAV body, and an emergency stop switch is located on the upper right side of the support frame. This invention uses an air pump to inflate an airbag, allowing the airbag to expand and enabling the UAV body to float on the water surface when it falls into the water.
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Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicle (UAV) technology, and more particularly to a UAV for inspecting enclosed space facilities. Background Technology

[0002] Unmanned aerial vehicles (UAVs) are unmanned aircraft controlled by radio remote control equipment and their own program control devices. They are used in fields such as oil pipeline inspection and power line inspection. UAVs are suitable for a variety of scenarios, including but not limited to environments that are difficult to access or pose a high risk to direct human inspection, such as boilers, chimneys, water towers, nuclear facilities, chemical plants, and underground pipelines.

[0003] When inspecting underground pipelines, drones are needed to enter and inspect them. The underground pipeline environment is relatively complex, and the internal space is generally relatively enclosed. The signal may be poor in the enclosed space, and the complex internal terrain can easily cause drones to collide and fall into the water. Although most drones are waterproof, repeated water falls can still cause water to enter and even damage the drone. Therefore, we are now developing a drone that can protect drones for inspecting facilities in enclosed spaces. Summary of the Invention

[0004] This invention discloses a drone for detecting enclosed space facilities that can protect drones, overcoming the shortcomings of existing drones that are easily damaged after falling into water and cannot be protected.

[0005] Technical solution: A drone for detecting enclosed space facilities includes a drone body and a camera. The camera is located on the top of the drone body. The drone body also includes a support frame located at the bottom of the drone body. A protective frame is located on the drone body near the fan blades. An emergency stop switch is located on the support frame. The emergency stop switch and the drone body are electrically connected through a control module. An airbag is located at the bottom of the support frame. An air pump is located on the support frame. The air pump is electrically connected to an external control system. The air pump and the airbag are connected. A stabilization mechanism is located on the support frame to stabilize the drone body.

[0006] Furthermore, it is particularly preferred that the stabilizing mechanism includes a fixed base, the fixed bases being symmetrically arranged on the support frame, a rotating component being rotatably connected to the fixed base, a reset torsion spring being connected between the rotating component and the fixed base, a rotating frame being provided on the side of the rotating component away from the reset torsion spring, a second pull rope being wound around the rotating frame, a first pull rope being wound around the rotating component, and a configuration block being connected to the end of the first pull rope.

[0007] In addition, it is particularly preferred that a connecting plate is included, which is disposed on the side of the support frame near the configuration block.

[0008] Furthermore, it is particularly preferred that the moving component includes an air tank, with symmetrically arranged air tanks positioned on the side of the support frame near the fixed base, a second pull rope passing through the air tank, the air tank and the airbag being connected, a guide being connected to the side of the air tank near the airbag, the second pull rope passing around the guide, a piston being slidably connected to the air tank, and the bottom of the piston being connected to the end of the second pull rope.

[0009] In addition, it is particularly preferred that a transparent protective cover is also included, which is set on the side of the drone body near the camera and covers the outside of the camera. The transparent protective cover is slidably connected to a wiping cotton, and a drive component for moving the wiping cotton is provided on a rotating frame on one side.

[0010] Furthermore, it is particularly preferred that the drive component includes a guide plate connected to a rotating frame on one side, a movable part slidably connected to the drone body, the movable part being movably connected to the guide plate, and the movable part being connected to the wiping cotton.

[0011] Furthermore, it is particularly preferred that the support frame also includes a guide rod, which is disposed on the side of the support frame near the emergency stop switch. A sliding member is slidably connected to the guide rod, and a rotating member near the guide rod is provided with a rotating screw. The rotating screw and the sliding member are threadedly connected.

[0012] Furthermore, it is particularly preferred that the slide also includes a compression block, which is disposed on the side of the slide near the emergency stop switch, and the compression block and the emergency stop switch are in compression engagement.

[0013] In addition, it is particularly preferred that the device also includes connecting rods, which are symmetrically arranged and connected to the support frame on the side near the air pump. Protective covers are slidably connected between the connecting rods, and one of the rotating frames is equipped with a release component for releasing the protective cover.

[0014] Furthermore, it is particularly preferred that the release assembly includes a rotating frame connected to one of the rotating frames, and a protective cover connected to a connecting frame, with the connecting frame and the rotating frame in a compression fit.

[0015] Compared with the prior art, the present invention has the following advantages: The present invention inflates the airbag with an air pump, so that the airbag can expand. In this way, when the drone body falls into the water, the airbag can make the drone body float on the water surface, preventing water from entering the drone body and causing damage to the drone body.

[0016] This invention allows the piston to move upward and pull the second rope while the airbag inflates, thereby loosening the first rope and allowing the configuration block to enter the water to stabilize the drone body and prevent the drone body from drifting randomly on the water surface.

[0017] This invention uses a rotating frame to drive a guide plate to rotate, which in turn causes the wiping cotton to move up and down to wipe the outside of the transparent protective cover, thus preventing impurities on the outside of the transparent protective cover from affecting the camera's shooting image. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the drone body, support frame, and protective frame of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the support frame, air pump, and airbag of the present invention.

[0021] Figure 4 This is a three-dimensional structural diagram of the components of the present invention, including the fixing base, connecting plate, and first pull rope.

[0022] Figure 5 This is a three-dimensional structural diagram of the second pull rope, reset torsion spring, and rotating component of the present invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the movable component, transparent protective cover, and wiping cotton of the present invention.

[0024] Figure 7 This is a three-dimensional structural diagram of the camera, transparent protective cover, and wiping cotton of the present invention.

[0025] Figure 8 This is a three-dimensional structural diagram of the sliding member, rotating lead screw, and pressing block of the present invention.

[0026] Figure 9 This is a three-dimensional structural diagram of the rotating frame, connecting frame, and protective cover of the present invention.

[0027] In the diagram: 1. UAV body, 11. Support frame, 12. Protective frame, 13. Camera, 14. Emergency stop switch, 15. Air pump, 111. Airbag, 2. Guide plate, 21. Moving part, 22. Transparent protective cover, 23. Wiping cotton, 3. Air tank, 31. Fixed base, 32. Connecting plate, 33. First pull rope, 34. Second pull rope, 35. Reset torsion spring, 36. Rotating part, 37. Configuration block, 38. Guide part, 39. Piston, 310. Rotating frame, 4. Guide rod, 41. Sliding part, 42. Rotating screw, 43. Extrusion block, 5. Rotating frame, 51. Connecting frame, 52. Protective cover, 53. Connecting rod. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0029] Example 1: A drone for inspecting enclosed space facilities, such as Figures 1-5As shown, the device includes a drone body 1, a support frame 11, a protective frame 12, a camera 13, an emergency stop switch 14, an air pump 15, an airbag 111, and a stabilizing mechanism. The support frame 11 is located at the bottom of the drone body 1. Protective frames 12 are symmetrically located on both sides of the drone body 1, front and back. The protective frames 12 protect the drone's fan blades from colliding with the inner wall of the pipe. A camera 13 is located at the top of the drone body 1. An emergency stop switch 14 is located on the upper right side of the support frame 11. The emergency stop switch 14 and the drone body 1 are electrically connected via a control module. The emergency stop switch 14 can control the drone body 1 to stop operating. The bottom of the support frame 11 has... The airbag 111 and the support frame 11 are bolted together with an air pump 15. The air pump 15 is electrically connected to an external control system and is connected to the airbag 111. The air pump 15 can inflate the airbag 111. After the drone body 1 falls into the water, the airbag 111 can float the entire drone body 1 on the water surface to prevent the drone body 1 from falling into the water. The support frame 11 has stabilizing mechanisms on the left and right sides of the upper part. The stabilizing mechanisms can stabilize the drone body 1. The stabilizing mechanisms include a fixed base 31, a connecting plate 32, a first pull rope 33, a second pull rope 34, a reset torsion spring 35, a rotating part 36, and a configuration block. 37. Rotating frame 310 and moving assembly: The left and right sides of the upper part of the support frame 11 are bolted to fixed seats 31. Rotating components 36 are rotatably connected to the upper part of each fixed seat 31. Return torsion springs 35 are connected between the rear of each rotating component 36 and the fixed seat 31. A rotating frame 310 is provided at the front of each rotating component 36. A second pull rope 34 is wound around each rotating frame 310, and a first pull rope 33 is wound around each rotating component 36. A configuration block 37 for stabilizing the UAV body 1 is fixedly connected to the end of each first pull rope 33. Connecting plates 32 are connected to the left and right sides of the support frame 11. The connecting plates 32 are used to wrap around the configuration block 37, thus protecting the configuration block 37. The moving component includes a gas tank 3, a guide 38, and a piston 39. The left and right sides of the upper part of the support frame 11 are equipped with gas tanks 3 through fixing rings. The second pull rope 34 passes through the gas tank 3. The gas tank 3 is located in front of the fixed base 31. The bottom of the gas tank 3 is connected to the air bag 111. The lower part of the gas tank 3 is connected to the guide 38. The second pull rope 34 passes around the guide 38. The guide 38 is used to guide the second pull rope 34. The piston 39 is slidably connected inside the gas tank 3. The bottom of the piston 39 is connected to the end of the second pull rope 34. Gas will drive the piston 39 to move upward. The piston 39 pulls the second pull rope 34, thereby causing the configuration block 37 to sink.

[0030] When using a drone intended for inspecting enclosed space facilities, the drone body 1 is controlled to enter an underground pipe. If the drone body 1 collides with the pipe wall and falls, the user can remotely control the air pump 15 to operate. The air pump 15 will inflate the airbag 111, causing the airbag 111 to expand. This will make the entire drone body 1 float on the water surface. At the same time, the gas will push the piston 39 upward. The upward movement of the piston 39 will pull the second pull rope 34, causing the rotating frame 310 to rotate. The rotating frame 310 will cause the rotating component 36 to rotate, releasing the first pull rope 33. The reset torsion spring 35 will be twisted at this time. The configuration block 37 will fall into the water due to its own weight. The weight of the configuration block 37 can improve the stability of the drone body 1 on the water surface, prevent the drone body 1 from drifting on the water surface, and also play a certain role in protecting the drone body 1. After the user finds the drone body 1, he can control the air pump 15 to deflate, so the air bag 111 will automatically contract. This will cause the piston 39 to move downward and reset, releasing the second pull rope 34. Then, under the action of the reset torsion spring 35, the rotating part 36 will reverse and reset. The rotating part 36 will then retract the first pull rope 33, thereby causing the first pull rope 33 to pull the configuration block 37 back to its original position.

[0031] Example 2: Based on Example 1, such as Figures 6-7 As shown, it also includes a transparent protective cover 22, a wiping cotton 23, and a drive assembly. The top of the drone body 1 is equipped with a transparent protective cover 22, which covers the outside of the camera 13. The transparent protective cover 22 is used to protect the camera 13. The wiping cotton 23 is slidably connected to the outside of the transparent protective cover 22. The wiping cotton 23 is used to wipe the outside of the transparent protective cover 22 to prevent impurities on the outside of the transparent protective cover 22 from affecting the image captured by the camera 13. The right rotating frame 310 is equipped with a drive assembly, which is used to move the wiping cotton 23 up and down. The drive assembly includes a guide plate 2 and a moving part 21. The guide plate 2 is connected to the front of the right rotating frame 310. The moving part 21 is slidably connected to the top of the drone body 1. The moving part 21 is located behind the camera 13. The right side of the moving part 21 is movably connected to the guide plate 2, and the left side of the moving part 21 is connected to the wiping cotton 23.

[0032] After the drone body 1 falls into the water, water may splash onto the camera 13. To prevent water from seeping into the camera 13, a protective function is set up to protect the camera 13. The camera 13 is protected by a transparent protective cover 22. When the rotating frame 310 rotates, it will drive the guide plate 2 to rotate at the same time. The guide plate 2 will drive the moving part 21 to move up and down. The up and down movement of the moving part 21 will drive the wiping cotton 23 to move up and down. The wiping cotton 23 can automatically wipe the outside of the transparent protective cover 22 to prevent impurities on the outside of the transparent protective cover 22 from affecting the image captured by the camera 13.

[0033] like Figure 8 As shown, it also includes a guide rod 4, a slider 41, a rotating screw 42, and a pressing block 43. The upper right part of the support frame 11 is connected to the guide rod 4. The guide rod 4 is located behind the fixed base 31 and in front of the emergency stop switch 14. The slider 41 is slidably connected to the guide rod 4. The pressing block 43 is provided at the rear of the slider 41. The pressing block 43 and the emergency stop switch 14 are pressed together. When the pressing block 43 moves backward, it can control the UAV body 1 to shut down in an emergency. The rotating part 36 on the right is fixedly connected to the rear of the rotating screw 42. The rotating screw 42 and the slider 41 are connected by a thread.

[0034] As the configuration block 37 sinks into the water, the rotating component 36 rotates, causing the rotating screw 42 to rotate. The rotation of the rotating screw 42 causes the sliding component 41 to move backward. The backward movement of the sliding component 41 causes the pressing block 43 to move backward. When the pressing block 43 contacts the emergency stop switch 14, the emergency stop switch 14 can control the drone's fan blades to stop working. Then, when the rotating component 36 reverses, it will cause the rotating screw 42 to reverse. The rotating screw 42 will cause the sliding component 41 and the pressing block 43 to move forward and reset.

[0035] like Figure 9 As shown, it also includes a release assembly, a protective cover 52, and connecting rods 53. Two connecting rods 53 are connected to the front top of the support frame 11. The two connecting rods 53 are located on the left and right sides of the air pump 15. A protective cover 52 for protecting the air pump 15 is slidably connected between the two connecting rods 53. A release assembly for releasing the protective cover 52 is provided at the front of the left rotating frame 310. The release assembly includes a rotating frame 5 and a connecting frame 51. The rotating frame 5 is connected to the front of the left rotating frame 310, and the connecting frame 51 is connected to the left side of the protective cover 52. The left side of the connecting frame 51 and the front side of the rotating frame 5 are pressed together.

[0036] When the rotating frame 310 rotates, it will drive the rotating frame 5 to rotate. After the rotating frame 5 rotates and separates from the connecting frame 51, the protective cover 52 will move downwards and reset under its own weight to protect the air pump 15. After the drone body 1 is removed, the protective cover 52 can be manually moved upwards and reset, which will also drive the connecting frame 51 to move upwards and reset. Then, when the rotating frame 310 reverses, it will drive the rotating frame 5 to reverse and restrict the connecting frame 51 again. The protective cover 52 will also remain upwards and no longer cover the air pump 15. In this way, the user can frequently maintain the air pump 15.

[0037] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A drone for inspecting enclosed space facilities, comprising a drone body (1) and a camera (13), wherein the camera (13) is mounted on the top of the drone body (1), characterized in that, It also includes a support frame (11), which is located at the bottom of the drone body (1). A protective frame (12) is provided near the fan blades of the drone body (1). An emergency stop switch (14) is provided on the support frame (11). The emergency stop switch (14) and the drone body (1) are electrically connected through a control module. An airbag (111) is provided at the bottom of the support frame (11). An air pump (15) is provided on the support frame (11). The air pump (15) is electrically connected to an external control system. The air pump (15) and the airbag (111) are connected. A stabilizing mechanism that can stabilize the drone body (1) is provided on the support frame (11). The stabilizing mechanism includes a fixed base (31), which is symmetrically arranged on the support frame (11). A rotating component (36) is rotatably connected to the fixed base (31). A reset torsion spring (35) is connected between the rotating component (36) and the fixed base (31). A rotating frame (310) is provided on the side of the rotating component (36) away from the reset torsion spring (35). A second pull rope (34) is wound around the rotating frame (310). A first pull rope (33) is wound around the rotating component (36). A configuration block (37) is connected to the end of the first pull rope (33). It also includes a gas tank (3), the gas tanks (3) are symmetrically arranged and are located on the side of the support frame (11) near the fixed seat (31), the second pull rope (34) is inserted into the gas tank (3), the gas tank (3) and the air bag (111) are connected, the gas tank (3) is connected to the side of the air bag (111) near the air bag (111) and the second pull rope (34) passes around the guide (38), the gas tank (3) is slidably connected to the piston (39), the bottom of the piston (39) is connected to the end of the second pull rope (34); It also includes a guide rod (4), which is set on the side of the support frame (11) near the emergency stop switch (14). A sliding member (41) is slidably connected to the guide rod (4), and a rotating member (36) near the guide rod (4) is provided with a rotating screw (42). The rotating screw (42) and the sliding member (41) are threadedly connected. It also includes a squeezing block (43), which is located on the side of the slider (41) near the emergency stop switch (14), and the squeezing block (43) and the emergency stop switch (14) are squeezed together.

2. The UAV for detecting enclosed space facilities according to claim 1, characterized in that, It also includes a connecting plate (32), which is located on the side of the support frame (11) near the configuration block (37).

3. A drone for inspecting enclosed space facilities according to claim 2, characterized in that, It also includes a transparent protective cover (22), which is set on the side of the drone body (1) near the camera (13). The transparent protective cover (22) covers the outside of the camera (13). The transparent protective cover (22) is slidably connected to a wiping cotton (23). A drive component for driving the wiping cotton (23) is provided on one side of the rotating frame (310).

4. A drone for inspecting enclosed space facilities according to claim 3, characterized in that, The drive assembly includes a guide plate (2), which is connected to a rotating frame (310) on one side. The drone body (1) is slidably connected to a moving part (21), which is movably connected to the guide plate (2). The moving part (21) is connected to the wiping cotton (23).

5. A drone for inspecting enclosed space facilities according to claim 4, characterized in that, It also includes connecting rods (53), which are symmetrically arranged and connected to the support frame (11) on the side near the air pump (15). Protective covers (52) are slidably connected between the connecting rods (53). One of the rotating frames (310) is equipped with a release component for releasing the protective cover (52).

6. A drone for inspecting enclosed space facilities according to claim 5, characterized in that, The release assembly includes a rotating frame (5) connected to one of the rotating frames (310), and a protective cover (52) connected to a connecting frame (51). The connecting frame (51) and the rotating frame (5) are in a compression fit.