Separable unmanned aerial vehicle intelligent flow measuring device

Abstract

The utility model discloses a separable unmanned aerial vehicle intelligent flow measuring device, which relates to a device for measuring fluid velocity, and comprises an unmanned aerial vehicle and a buoyancy tank positioned below the unmanned aerial vehicle, a hanging frame is fixedly mounted on the unmanned aerial vehicle, the buoyancy tank and the hanging frame are detachably connected together, a pull wire is further connected between the hanging frame and the buoyancy tank, and the buoyancy tank and the hanging frame are connected together. The unmanned aerial vehicle is used for driving the buoyancy tank to float on the water surface, and when the buoyancy tank and the unmanned aerial vehicle float along with a river, the unmanned aerial vehicle can directly measure the speed of water flow. The buoyancy tank is arranged on the unmanned aerial vehicle, when water flow is measured, the unmanned aerial vehicle directly floats on the water surface with the buoyancy tank and flows along with the water surface, and when the unmanned aerial vehicle and the buoyancy tank flow along with the water flow together, the flying speed of the unmanned aerial vehicle is the flowing speed of the water flow, and the flying speed of the unmanned aerial vehicle is the speed of the water flow. And an additional flow velocity measuring device is not needed. And the unmanned aerial vehicle and the buoyancy tank are in direct contact with water flow, so that measured data are more accurate.

Description

Technical Field

[0001] The utility model relates to a device for measuring fluid velocity, in particular to a detachable unmanned aerial vehicle intelligent flow measuring device. Background Art

[0002] As an unmanned aircraft, drones include unmanned helicopters, fixed-wing aircraft, multi-rotor aircraft and unmanned airships. As the most commonly used civil aircraft, multi-rotor aircraft are widely used in agricultural plant protection, monitoring, aerial wireless networks, etc. When a multi-rotor drone is flying, the drone's flight speed, flight altitude, flight time and other data can be directly displayed in real time on the drone's control panel.

[0003] Since drones are flexible in takeoff and landing and easy to control, they are also widely used in measuring water flow velocity. The conventional method is to put a flow velocity measuring device on a drone to measure the water flow velocity of a river. For example, the Chinese patent with announcement number CN214986117U, a new type of drone flow measurement device, installs a radar flow meter on a drone to measure the water flow velocity. The Chinese patent with announcement number CN215180844U, a drone radar flow measurement device, also installs a radar on a drone to measure water flow. Another example is the Chinese patent with announcement number CN209605885U, a surface water flow measurement drone device and system, which also installs a radar velocity meter on a drone to measure the water flow velocity.

[0004] Although the above device can complete the measurement of water flow velocity, the measurement device is carried by the drone and is at a distance from the water surface, which will cause unstable data. In addition, the installation of additional measurement devices on the drone increases the cost of the drone. Utility Model Content

[0005] The purpose of the utility model is to provide a detachable UAV intelligent flow measurement device to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a detachable UAV intelligent flow measurement device, including a UAV and a buoyancy box located under the UAV, the UAV is used to float on the water surface with the buoyancy box, when the buoyancy box and the UAV drift along the river, the UAV can directly measure the speed of the water flow.

[0007] Preferably, a pylon is fixedly mounted on the drone, the buoyancy box and the pylon are detachably connected together, and a pull line is also connected between the pylon and the buoyancy box to connect the buoyancy box and the pylon together.

[0008] Preferably, a placement groove matching the hanger is opened on the upper part of the buoyancy box.

[0009] Preferably, a mounting groove is provided inside the bracket, push rods distributed in a cross shape are slidably installed inside the mounting groove, a cam is rotatably installed at the intersection of the push rods, a support block is fixedly installed on the push rods, two support rods are rotatably installed on the outer end of the push rods, and a connecting column is rotatably installed at one end of the support rod;

[0010] The side wall of the installation groove and the placement groove are provided with a card slot matching the connection column. When the push rod slides outward, it can push the connection column out of the installation groove and extend into the card slot of the placement groove to connect the hanger and the buoyancy box together;

[0011] A plurality of L-shaped fixing blocks are fixedly installed inside the installation groove, and a spring is installed between the fixing block and the supporting block, and the spring is used for resetting the push rod.

[0012] Preferably, a camera is fixedly mounted on the bottom of the bracket, and a cross mark is provided in the placement groove to provide a capture mark for the camera.

[0013] Preferably, a plurality of motors are fixedly mounted on the upper end of the rack, and a wire drum is rotatably mounted on the output end of the motor, and the pull wire is wound around the wire drum.

[0014] Preferably, a motor 1 is fixedly installed in the middle of the bracket, and the output end of the motor 1 is fixedly connected to the cam for rotating with the cam and for pushing the push rod to move outward in the installation groove.

[0015] Preferably, two adjacent fixing blocks leave a space for placing a push rod, and the push rod can slide in the space.

[0016] Preferably, a flow meter is also installed inside the buoyancy tank.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model sets a float box on the drone. When measuring water flow, the drone with the float box floats directly on the calm water surface and flows with the water surface. When the drone and the float box flow with the water flow, the flight speed of the drone itself is the flow speed of the water flow, and the flight speed of the drone is the speed of the water flow, and no additional flow velocity measurement device is required. Moreover, the drone and the float box are in direct contact with the water flow, and the measured data is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of the utility model UAV and the buoyancy box attached together;

[0020] Figure 2 This is a structural diagram of the separation of the UAV and the buoyancy box of the utility model;

[0021] Figure 3This is a bottom-up structural diagram of the UAV and the buoyancy box of the utility model being separated;

[0022] Figure 4 This is a schematic diagram of the structure of the hanger and the push rod of the utility model;

[0023] Figure 5 This is the overall structural diagram of the hanger and push rod of the utility model.

[0024] In the figure: 1. UAV; 2. Floating box; 3. Hanging bracket; 4. Pull wire; 5. Placement slot; 6. Camera; 7. Motor 1; 8. Wire drum; 9. Connecting column; 10. Push rod; 11. Support block; 12. Cam; 13. Fixed block; 14. Spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] As shown in FIG. 1 , this embodiment provides a detachable UAV intelligent flow measurement device, including a UAV 1, and a buoyancy box 2 is placed directly below the UAV 1. The buoyancy box 2 provides buoyancy to the UAV 1. In this embodiment, the buoyancy box 2 can be fixed to the UAV 1, or can be connected to the UAV 1 in a detachable manner, such as Figure 1 shown.

[0027] In this embodiment, the drone 1 is fixedly connected to the pontoon 2. When measuring the water flow, the drone 1 flies to the calm water surface with the pontoon 2 and falls into the water, so that the pontoon 2 floats on the water surface, and the pontoon 2 lifts the drone 1 away from the water surface. When the water flows, the pontoon 2 and the drone 1 flow with the water flow. Since the drone 1 itself has the function of detecting speed, the speed of the drone 1 floating in the water can be directly displayed on the operation screen of the drone, that is, the drone 1 can directly measure the speed of the water flow.

[0028] This embodiment is more suitable for relatively calm water surface, where the waves are relatively small, and both the pontoon 2 and the drone 1 can float on the water surface. A flow meter is also installed inside the pontoon 2. According to actual detection requirements, pressure differential type, electromagnetic type, flow channel type and weir type flow meter can be selected.

[0029] When the water surface has large waves, the water may hit or splash on the drone 1, causing water to enter the drone 1. Therefore, in this embodiment, the drone 1 and the buoyancy box 2 are installed together in a detachable manner.

[0030] like Figure 2-5 As shown, a bracket 3 is fixedly installed on the drone 1. Figure 2 As shown, a cross mounting ring is fixedly mounted on the bracket 3, and the UAV 1 is mounted inside the cross mounting ring, so that the bracket 3 and the UAV 1 are mounted together.

[0031] A placement groove 5 matching the hanger 3 is also provided at the upper end of the buoyancy box 2 , and the hanger 3 can be placed in the placement groove 5 , so that the buoyancy box 2 and the drone 1 are installed together in a fitting manner.

[0032] like Figure 5 As shown, a mounting groove is provided inside the rack 3, and four push rods 10 are slidably installed inside the mounting groove. The four push rods 10 are distributed in a cross shape, and a cam 12 is installed at the intersection of the four push rods 10. The cam 12 is rotatably installed together with the rack 3. A motor 7 is also fixedly installed on the upper end of the rack 3, and the output end of the motor 7 is fixedly connected to the cam 12 for driving the cam 12 to rotate. When the cam 12 rotates, it can push the push rod 10 to slide in the mounting groove.

[0033] The two side walls of the push rod 10 near the cam 12 are fixedly mounted with support blocks 11, and the interior of the mounting groove is fixedly mounted with eight L-shaped fixing blocks 13, such as Figure 5 As shown, every two fixed blocks form a group, and the space between the two fixed blocks 13 is used to place the push rod 10, and the push rod 10 is limited so that the push rod 10 can only slide horizontally between the two fixed blocks 13. A spring 14 is fixedly installed between the fixing ring 13 and the support block 11, and the spring 14 is used to bring the push rod 10 back to the original position.

[0034] The end of the push rod 10 away from the cam 12 (i.e., the end located at the edge of the mounting groove) is rotatably mounted with two support rods, and one end of the support rod is rotatably mounted with a connecting column 9, such as Figure 4 As shown, there is a V-shaped structure between the two support rods. The side wall of the installation groove and the placement groove 5 are provided with a slot matching the connecting column 9. When the motor 7 rotates and drives the cam 12 to rotate, the cam 12 rotates, drives the push rod 10 to move outward, and the push rod 10 drives the two support rods to move outward, the V-shaped openings of the two support rods open and become larger, and drives the connecting column 9 to move outward, the connecting column 9 extends from the installation groove and is inserted into the slot of the placement groove 5, so that the hanger 3 and the buoyancy box 2 can be connected together.

[0035] When the hanger 3 is separated from the pontoon 2, the motor 7 rotates with the cam 12. As the cam 12 rotates, the groove of the cam 12 gradually rotates and approaches the push rod 10. Under the elastic force of the spring 14, the push rod 10 is reset and inserted into the recessed part of the cam 12. At the same time, the two support rods move with the push rod 10, the V-shaped openings of the two support rods become smaller, and the connecting column 9 shrinks into the installation groove, so that the separation between the hanger 3 and the pontoon 2 can be achieved.

[0036] In this embodiment, motors are fixedly installed at the four corners of the upper end of the rack 3. The motors are controlled by the same switch, which can synchronize the movement of multiple motors. A wire drum 8 is fixedly installed at the output end of the motor, and a pull wire 4 is wound around the wire drum 8. Figure 1 and Figure 2 When the cable drum 8 rotates, the cable 4 can be wound and released. When the cable 4 is released, the buoyancy box 2 moves downward, and the distance between the buoyancy box 2 and the drone 1 increases. When the cable 4 is wound, the buoyancy box 2 moves upward until the hanger 3 enters the placement slot 5.

[0037] In this embodiment, a camera 6 is also fixedly mounted on the bottom of the bracket 3 , and a cross mark is provided on the bottom of the placement slot 5 to provide a capture mark for the camera 6 .

[0038] In this embodiment, when the bracket is located inside the placement groove 5, the buoyancy box 2 and the drone 1 fit together, and can be used on water surfaces with relatively small waves.

[0039] When the waves on the water surface are relatively large, the hanger 3 is separated from the pontoon 2, the pull line 4 is relaxed, the pontoon 2 moves downward and is placed on the water surface, while the drone 1 is suspended in the air, away from the water surface, to prevent water splashing into the drone. When the drone 1 is suspended in the air, the camera 6 shoots downward and is always aimed at the cross mark. When the cross mark flows in the water with the pontoon 2, the drone 1 can move with the pontoon 2 under the capture of the camera 6, and the drone 1 will transmit its own flight speed to the control display of the drone. The flight speed of the drone 1 is the speed of the water flow.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable drone intelligent flow measurement device, characterized by: The invention comprises a drone (1) and a buoyancy box (2) located below the drone (1). The drone (1) is used to float on the water surface with the buoyancy box (2). When the buoyancy box (2) and the drone (1) drift along the river, the drone (1) can directly measure the speed of the water flow.

2. The detachable drone intelligent flow measurement device according to claim 1 is characterized by: The drone (1) is fixedly provided with a pylon (3), the buoyancy box (2) and the pylon (3) are detachably connected together, and a pull line (4) is further connected between the pylon (3) and the buoyancy box (2) to connect the buoyancy box (2) and the pylon (3) together.

3. The detachable UAV intelligent flow measurement device according to claim 2 is characterized by: The upper part of the buoyancy box (2) is provided with a placement groove (5) matching the hanger (3).

4. The detachable UAV intelligent flow measurement device according to claim 3 is characterized by: The hanger (3) is provided with an installation groove inside, and push rods (10) distributed in a cross shape are slidably installed inside the installation groove, a cam (12) is rotatably installed at the intersection of the push rods (10), a support block (11) is fixedly installed on the push rods (10), and two support rods are rotatably installed on the outer end of the push rod (10), and a connecting column (9) is rotatably installed at one end of the support rod; The side walls of the installation groove and the placement groove (5) are both provided with a slot matching the connecting column (9), and when the push rod (10) slides outward, it can push the connecting column (9) out of the installation groove and into the slot of the placement groove (5), thereby connecting the hanger (3) and the buoyancy box (2) together; A plurality of L-shaped fixing blocks (13) are fixedly installed inside the installation groove, and a spring (14) is installed between the fixing block (13) and the support block (11), and the spring (14) is used to reset the push rod (10).

5. The detachable UAV intelligent flow measurement device according to claim 4 is characterized by: A camera (6) is fixedly mounted on the bottom of the hanger (3), and a cross mark is provided in the placement groove (5) to provide a capture mark for the camera (6).

6. The detachable UAV intelligent flow measurement device according to claim 5, characterized in that: A plurality of motors are fixedly mounted on the upper end of the hanging frame (3), and a wire drum (8) is rotatably mounted on the output end of the motor, and the pulling wire (4) is wound around the wire drum (8).

7. The detachable UAV intelligent flow measurement device according to claim 4 is characterized by: A motor 1 (7) is fixedly mounted in the middle of the bracket (3); an output end of the motor 1 (7) is fixedly connected to the cam (12) and is used to rotate the cam (12) and to push the push rod (10) to move outward in the mounting groove.

8. The detachable UAV intelligent flow measurement device according to claim 4 is characterized by: Two adjacent fixing blocks (13) leave a space for placing the push rod (10), and the push rod (10) can slide in the space.

9. The detachable UAV intelligent flow measurement device according to claim 4, characterized in that: A flow meter is also installed inside the buoyancy box (2).

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