Water body sampling device for unmanned aerial vehicle

Abstract

The invention discloses a water body sampling device for an unmanned aerial vehicle, and relates to the field of water body sampling, the water body sampling device comprises a fuselage and a rack, the bottom of the rack is connected with a chassis, the chassis is fixedly mounted at the bottom of the fuselage, undercarriages are fixedly connected to two sides of the bottom of the chassis, and the top of the rack is fixedly connected with a collection cylinder. The collecting cylinder is connected with a collecting assembly for collecting sample water; the collecting assembly comprises a dual-purpose pump and a sampling pipe, the sampling pipe is connected with a rotating disc in a winding mode, the rotating disc is connected to the rack through a rotating shaft, the rotating shaft is connected with a cleaning device, and the cleaning device cleans the outer side face of the sampling pipe at the same time; the bottom of the sampling pipe is connected with a submersible pump; the submersible pump is provided with a protection adjusting device; the device has the advantages that after the collecting assembly enters a water body, the state of the collecting assembly is adjusted through the protection adjusting device, the thrust of water flow can be overcome through the airflow reverse thrust effect, interference of fish organisms in the water body is avoided through the airflow sounding piece, and the sampling efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of water sampling, and in particular to a water sampling device for an unmanned aerial vehicle (UAV). Background Art

[0002] UAV water sampling is a technology that uses an unmanned aerial vehicle to carry sampling equipment to automatically or semi-automatically sample water bodies such as rivers, lakes, and oceans. This technology can significantly improve sampling efficiency, reduce labor costs, and be able to perform tasks in dangerous or inaccessible areas.

[0003] After retrieval, Chinese Patent Publication No. CN105571904B discloses an automatic sampler for a water quality sampling UAV, which includes a main body bracket, a height-fixing sensor, a water sample collection component, a lifting device, a sub-sampling device, a sample storage device, and a control circuit board. Among them, the water sample collection component includes a submersible pump, a pressure liquid level sensor, a flexible water pipe, and a flow sensor. After analysis, although the above-mentioned prior art can achieve fixed-depth sampling through the lifting device and adding a pressure liquid level sensor at the sampling port, in actual use, on the one hand, since some water bodies are in a flowing state, after the collection component is put into the water, it is prone to displacement under the action of the water flow, which affects the accuracy of fixed-point detection on the one hand, and on the other hand, the UAV needs to always follow, otherwise it will pull the UAV and affect its balance. On the other hand, after the collection component enters the water body, it is easily affected by organisms or non-organisms in the water body and is easily entangled with stones, plants, etc. in the water, having the problem of difficult obstacle crossing, which will affect the recovery of the collection component. Based on this, the present invention designs a water sampling device for a UAV. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art and propose a water sampling device for a UAV.

[0005] A water sampling device for a UAV includes:

[0006] A fuselage, the fuselage is connected with a plurality of blades;

[0007] A frame, the frame is wrapped outside the middle part of the fuselage and the bottom is connected with a chassis, the chassis is fixedly installed at the bottom of the fuselage, and both sides of the bottom of the chassis are fixedly connected with landing gears;

[0008] A collection cylinder, the collection cylinder is buckled on the top of the frame for storing sample water, and the collection cylinder is connected with a collection component for collecting sample water;

[0009] The collection component includes:

[0010] A dual-purpose pump;

[0011] Sampling tube, one end of the sampling tube is connected to a fixed ring through a dual-purpose pump, the fixed ring is fixed on the frame, the fixed ring and the collection cylinder are jointly connected with a feed pipe and connected to the sampling tube through the feed pipe, the sampling tube includes an outer tube and an inner tube, and an air interlayer is arranged between the outer tube and the inner tube;

[0012] Rotary table, the sampling tube is wound around the rotary table, the rotary table is connected to the frame through a rotating shaft, the rotating shaft is connected with a cleaning device, and the sampling tube is recovered by driving the rotation of the rotating shaft, and the cleaning device simultaneously cleans the outer side surface of the sampling tube;

[0013] Submersible pump, the submersible pump is connected to the bottom of the sampling tube, and the dual-purpose pump and the submersible pump jointly act on the sampling tube to realize the sampling of water body;

[0014] The submersible pump is provided with a protection and adjustment device.

[0015] In the above water body sampling device for drones, the protection and adjustment device includes an outer expansion part sleeved outside the submersible pump, an installation groove for installing the submersible pump is opened at the bottom of the outer expansion part, the outer expansion part is made of an inflatable rubber material, the top of the outer expansion part is connected with an adjustment part, the adjustment part includes four adjustment pipes distributed in a "cross" structure, an electromagnetic one-way valve is connected to the pipe orifice of each adjustment pipe, an arc-shaped pipe is connected to both sides of each adjustment pipe, the pipe orifice part of each arc-shaped pipe is directly opposite to an adjacent arc-shaped pipe and is hermetically connected with an electromagnetic one-way valve, a plurality of the adjustment pipes are jointly connected to the outer side surface of the outer expansion part and communicated with the inside of the outer expansion part, and the inside of the outer expansion part is communicated with the air interlayer in the sampling tube.

[0016] In the above water body sampling device for drones, a frustum is arranged at the connection part between the sampling tube and the outer expansion part, the frustum is connected with a mounting seat, the mounting seat is fixed at the bottom of the chassis, the frustum and the mounting seat are positioned and connected and jointly provided with an electromagnet.

[0017] In the above water body sampling device for drones, the cleaning device includes a cleaning ring rotatably connected to the mounting seat, bristles are annularly arranged on the inner circular surface of the cleaning ring, the cleaning ring is connected with a rotating part for making it rotate, and the rotating part is connected to the rotating shaft.

[0018] In the above water body sampling device for drones, the rotating part includes a hydraulic cylinder, the movable end of the hydraulic cylinder is fixedly connected with a toothed plate, the toothed plate meshes with a gear, the gear is sleeved outside the cleaning ring, and an opening matched with the gear is opened on the mounting seat so that the toothed plate can act on the gear.

[0019] In the above water body sampling device for a drone, the toothed plate is arranged in a right-angle structure and has a toothed part one and a toothed part two on two perpendicular right-angle surfaces respectively. The toothed part one meshes with a gear, and the toothed part two meshes with a second gear. The second gear is connected to a first synchronous pulley through a connecting shaft. The first synchronous pulley is connected to a second synchronous pulley through a synchronous belt. The second synchronous pulley is coaxially connected to a rotating shaft. The first synchronous pulley and the synchronous belt are connected in a through groove opened in the chassis.

[0020] In the above water body sampling device for a drone, a gas sounding piece is provided at the pipe orifice part of each adjusting pipe and arc-shaped pipe.

[0021] Compared with the existing technology, the advantages of the present invention are as follows:

[0022] 1. The present invention sets the sampling pipe as a structure of an inner pipe and an outer pipe, and an air interlayer is provided between the inner pipe and the outer pipe. In this way, the outer pipe can be expanded through inflation, which can protect the inner pipe from being gnawed or damaged by animals to a certain extent, and the inner pipe can still realize the sampling work when the outer pipe is damaged.

[0023] 2. The present invention simultaneously realizes the water body sampling work through a dual-purpose pump and a submersible pump. Among them, the dual-purpose pump is close to one side of the sampling cylinder, and the submersible pump is close to one side of the bottom of the sampling pipe. Therefore, the sampling work of deep water can be better realized through the power on both sides, avoiding the problem that the sampling cannot be completed after a single pump has problems.

[0024] 3. An outer expansion part is arranged outside the submersible pump. The outer expansion part adopts a hollow structure and is communicated with the air interlayer. In this way, through the pressurization of the dual-purpose pump, the outer expansion part can be expanded. On the one hand, the volume of the outer expansion part can be increased through expansion, thereby increasing the buoyancy of the overall combination with the submersible pump. In this way, after the deep sampling is completed, the submersible pump can float up to reduce the working load of the turntable for recovering the sampling pipe, and the outer expansion part is connected with an adjustment part to realize the self-adjustment of the position and angle, so as to facilitate the recovery of the submersible pump. Brief Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of a water body sampling device for a drone proposed by the present invention.

[0026] Figure 2 It is a schematic structural diagram of the chassis in a water body sampling device for a drone proposed by the present invention.

[0027] Figure 3 It is a schematic structural diagram of the collection component in a water body sampling device for a drone proposed by the present invention.

[0028] Figure 4 It is a schematic structural diagram of the rotating part in a water body sampling device for a drone proposed by the present invention

[0029] Figure 5 Schematic diagram of the structure of the protection and adjustment device in a water sampling device for an unmanned aerial vehicle proposed by the present invention

[0030] Figure 6 is Figure 5 An enlarged schematic diagram of part A in

[0031] Figure 7 is Figure 6 An enlarged schematic diagram of part B in

[0032] Figure 8 Inner side schematic diagram of the frame in a water sampling device for an unmanned aerial vehicle proposed by the present invention

[0033] Figure 9 Schematic diagram of the structure of the unmanned aerial vehicle in a water sampling device for an unmanned aerial vehicle proposed by the present invention

[0034] Figure 10 Schematic diagram of the structure of the feed pipe and the fixing ring in a water sampling device for an unmanned aerial vehicle proposed by the present invention

[0035] In the figure: 1 fuselage, 2 frame, 3 chassis, 4 collection cylinder, 5 collection assembly, 51 dual-purpose pump, 52 sampling pipe, 521 outer pipe, 522 inner pipe, 523 air interlayer, 53 fixing ring, 54 feed pipe, 55 turntable, 56 rotating shaft, 57 submersible pump, 6 protection and adjustment device, 61 outer expansion part, 62 adjustment part, 63 installation groove, 621 adjustment pipe, 622 arc-shaped pipe, 63 installation groove, 7 cleaning device, 71 cleaning ring, 8 frustum, 9 mounting seat, 10 rotating part, 101 hydraulic cylinder, 102 toothed plate, 103 gear one, 104 gear two, 111 toothed part one, 112 toothed part two, 105 connecting shaft, 106 synchronous pulley one, 107 synchronous belt, 108 synchronous pulley two, 109 opening, 11 through groove, 12 blade, 13 landing gear. Specific embodiments

[0036] Referring to Figure 1-10 , a water sampling device for an unmanned aerial vehicle includes a fuselage 1 and a frame 2. The fuselage 1 is connected with a plurality of blades 12. The frame 2 is wrapped around the outer side of the middle part of the fuselage 1 and the bottom is connected with a chassis 3. The chassis 3 is fixedly installed at the bottom of the fuselage 1. Both sides of the bottom of the chassis 3 are fixedly connected with landing gears 13;

[0037] The frame 2 is installed with a collection cylinder 4, and the collection cylinder 4 is inverted on the top of the frame 2 for storing sample water. The collection cylinder 4 is connected to the frame 2 through a fixing ring 53, and the connection between the fixing ring 53 and the collection cylinder 4 is detachable. In this way, after the sample water collection is completed, the collection cylinder 4 can be directly taken out, so that the sample water in the collection cylinder 4 can be used for experiments and analysis. The collection cylinder 4 is connected with a sampling component 5 for collecting sample water;

[0038] The sampling component 5 includes a dual-purpose pump 51 and a sampling pipe 52. The dual-purpose pump 51 is installed on the top of the frame 2 and inputs the sample water into the collection cylinder 4 through the sampling pipe 52 by means of pumping and pressing. One end of the sampling pipe 52 is connected with a fixing ring 53 through the dual-purpose pump 51. The fixing ring 53 is fixed on the frame 2. The fixing ring 53 and the collection cylinder 4 are jointly connected with a feed pipe 54 and are connected to the sampling pipe 52 through the feed pipe 54. The sampling pipe 52 includes an outer pipe 521 and an inner pipe 522. An air sandwich 523 is arranged between the outer pipe 521 and the inner pipe 522. An electromagnetic switch device is arranged in both the air sandwich 523 and the inner pipe 522, and both are connected to the dual-purpose pump 51. In this way, the dual-purpose pump 51 can respectively input negative pressure and positive pressure into the inner pipe 522 and the air sandwich 523. The negative pressure can be used to absorb the sample water in the inner pipe 522, while the positive pressure can be used to pressurize the air sandwich 523, causing the outer pipe 521 to expand and output the gas to the outer expansion part 61 below. The advantage of this setting is that the inner pipe 522 is used for water sampling, and the outer pipe 521 and the air sandwich 523 are used to protect the inner pipe 522. In this way, the ability of the inner pipe 522 to transport sample water can still be maintained when the outer pipe 521 is damaged. At the same time, the influence of aquatic animals gnawing or damaging on the sampling component 5 can also be reduced;

[0039] The sampling pipe 52 is wound around the turntable 55. The turntable 55 is connected to the frame 2 through the rotating shaft 56. The rotating shaft 56 is connected with a cleaning device 7. By driving the rotation of the rotating shaft 56, the sampling pipe 52 is released or recovered. The cleaning device 7 simultaneously cleans the outer side of the sampling pipe 52. The cleaning device 7 includes a cleaning ring 71 rotatably connected to the mounting seat 9. The inner circular surface of the cleaning ring 71 is annularly provided with bristles. The cleaning ring 71 is connected with a rotating part 10 that makes it rotate. The rotating part 10 drives the cleaning ring 71 to rotate. And the cleaning ring 71 is located outside the sampling pipe 52. Therefore, whether the pipe is released or retrieved, the outer side of the sampling pipe 52 can be cleaned by the rotation of the cleaning ring 71. And the rotating part 10 is connected to the rotating shaft 56. The rotating part 10 includes a hydraulic cylinder 101. The movable end of the hydraulic cylinder 101 is fixedly connected with a toothed plate 102. The toothed plate 102 meshes with a first gear 103. The first gear 103 is sleeved outside the cleaning ring 71. The mounting seat 9 is provided with an opening 109 that cooperates with the first gear 103 so that the toothed plate 102 can act on the first gear 103. The toothed plate 102 is set as a right-angle structure and has a first toothed part 111 and a second toothed part 112 on two perpendicular right-angle surfaces respectively. The first toothed part 111 meshes with the first gear 103. The second toothed part 112 meshes with a second gear 104. The second gear 104 is connected with a first synchronous pulley 106 through a connecting shaft. The first synchronous pulley 106 is connected with a second synchronous pulley 108 through a synchronous belt 107. The second synchronous pulley 108 is coaxially connected with the rotating shaft 56. The first synchronous pulley 106 and the synchronous belt 107 are connected in a through groove 11 opened in the chassis 3. In this way, the toothed plate 102 can drive the first gear 103 and the second gear 104 to rotate simultaneously. Among them, the rotation of the first gear 103 will drive the cleaning ring 71 to rotate, and the rotation of the second gear 104 will drive the rotating shaft 56 to rotate through the synchronous belt pulley structure, realizing the rotating recovery of the sampling pipe 52 on the turntable 55.

[0040] A submersible pump 57 is provided at the bottom of the sampling pipe 52. The main function of the submersible pump 57 is in the water body, and it is used to convey the sample water upward. And in the present invention, the dual-purpose pump 51 and the submersible pump 57 act on the sampling pipe 52 together to realize the sampling of the water body;

[0041] The submersible pump 57 is provided with a protection and adjustment device 6. The protection and adjustment device 6 includes an outward expansion part 61 sleeved outside the submersible pump 57. The outward expansion part 61 is made of an inflatable rubber material. When the outward expansion part 61 is not inflated, the overall density of the outward expansion part 61 and the submersible pump 57 is greater than that of water. Therefore, after the sampling assembly 5 is put into the water body, it can automatically sink to the designated position. When the outward expansion part 61 is inflated and expanded by gas pressurization, due to the increase in volume, its density is lower and will be lower than the density of water. Therefore, after the sampling is completed, it can automatically float to the water surface through the floating action, which is convenient for the rotation and recovery of the turntable 55. The top of the outward expansion part 61 is connected with an adjustment part 62. The adjustment part includes four adjustment pipes 621 distributed in a "cross" structure. An electromagnetic one-way valve is connected to the pipe orifice of each adjustment pipe 621. An arc-shaped pipe 622 is connected to both sides of each adjustment pipe 621. The pipe orifice part of each arc-shaped pipe 622 is directly opposite to an adjacent arc-shaped pipe 622 and is hermetically connected with an electromagnetic one-way valve. In this way, each adjustment pipe 621 can realize the jetting function, and the position of itself can be adjusted by the jetting and pushing of one or two adjustment pipes 621. Each arc-shaped pipe 622 is arranged along the tangent direction of the outward expansion part 61. Therefore, the device can be rotated clockwise or counterclockwise through the jetting action of multiple arc-shaped pipes 622. This can assist in adjusting the attitude of the sampling assembly 5, avoid a large torsional effect on the sampling pipe 52, affect its service life, and also facilitate the recovery of the sampling pipe 52. A gas sounding piece is arranged at the pipe orifice part of each adjustment pipe 621 and arc-shaped pipe 622. The gas sounding piece makes a sound through the airflow action, which can play a warning role for the surrounding animals and avoid the activities of the animals interfering with the work of the sampling assembly 5. The multiple adjustment pipes 621 are commonly connected to the outer side surface of the outward expansion part 61 and are communicated with the inside of the outward expansion part 61. The inside of the outward expansion part 61 is communicated with the air interlayer 523 in the sampling pipe 52. A frustum 8 is arranged at the connection part between the sampling pipe 52 and the outward expansion part 61. The frustum 8 is connected with a mounting seat 9. The mounting seat 9 is fixed at the bottom of the chassis 3. The frustum 8 is positioned and connected with the mounting seat 9 and an electromagnet is commonly arranged, so as to realize the positioning and fixing function of the sampling assembly 5 when it does not work.

[0042] As is known by common technical knowledge, the present invention can be implemented by other embodiments without departing from its spiritual essence or essential features. Therefore, the above-disclosed embodiments are illustrative in all aspects and not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are encompassed by the present invention.

Claims

1. A water sampling device for an unmanned aerial vehicle, characterized in that: include: A fuselage (1), wherein the fuselage (1) is connected to a plurality of blades (12); A frame (2), the frame (2) is wrapped around the outer side of the middle part of the fuselage (1) and is connected to a chassis (3) at the bottom, the chassis (3) is fixedly mounted on the bottom of the fuselage (1), and landing gears (13) are fixedly connected to both sides of the bottom of the chassis (3); A collecting cylinder (4), the collecting cylinder (4) being inverted on the top of the frame (2) for storing sample water, the collecting cylinder (4) being connected to a collecting component (5) for collecting sample water; The acquisition component (5) comprises: Dual-purpose pump (51); A sampling tube (52), one end of the sampling tube (52) is connected to a fixing ring (53) via a dual-purpose pump (51), the fixing ring (53) is fixed on the frame (2), the fixing ring (53) and the collecting cylinder (4) are connected to a feed pipe (54) and are connected to the sampling tube (52) via the feed pipe (54), the sampling tube (52) comprises an outer tube (521) and an inner tube (522), an air interlayer (523) is provided between the outer tube (521) and the inner tube (522); A rotating disk (55), the sampling tube (52) is wound around the rotating disk (55), the rotating disk (55) is connected to the frame (2) via a rotating shaft (56), the rotating shaft (56) is connected to a cleaning device (7), the sampling tube (52) is recovered by driving the rotating shaft (56) to rotate, and the cleaning device (7) cleans the outer side of the sampling tube (52) at the same time; A submersible pump (57), the submersible pump (57) is connected to the bottom of the sampling tube (52), the dual-purpose pump (51) and the submersible pump (57) act together on the sampling tube (52) to achieve the sampling of the water body; The submersible pump (57) is provided with a protection adjustment device (6).

2. The water sampling device for drone according to claim 1, characterized in that: The protection adjustment device (6) comprises an expansion portion (61) sleeved on the outside of the submersible pump (57), a mounting groove (63) for mounting the submersible pump (57) is provided at the bottom of the expansion portion (61), the expansion portion (61) is made of an inflatable rubber material, the top of the expansion portion (61) is connected to an adjustment portion (62), the adjustment portion comprises four adjustment pipes (621) arranged in a "cross" structure, and the pipe mouth of each adjustment pipe (621) is connected to There is an electromagnetic one-way valve, and each of the adjustment tubes (621) is connected to an arc tube (622) on both sides. The pipe mouth of each arc tube (622) is directly opposite to an adjacent arc tube (622) and is sealed with an electromagnetic one-way valve. The multiple adjustment tubes (621) are connected to the outer side of the expansion part (61) and communicate with the interior of the expansion part (61), and the interior of the expansion part (61) is communicated with the air layer (523) in the sampling tube (52).

3. The water sampling device for drone according to claim 2, characterized in that: A truncated cone (8) is provided at the connection between the sampling tube (52) and the outer expansion portion (61); the truncated cone (8) is connected to a mounting seat (9); the mounting seat (9) is fixed to the bottom of the chassis (3); the truncated cone (8) and the mounting seat (9) are positioned and connected and are jointly provided with an electromagnet.

4. The water sampling device for drone according to claim 3, characterized in that: The cleaning device (7) comprises a cleaning ring (71) rotatably connected to the mounting seat (9), the inner circumferential surface of the cleaning ring (71) is provided with bristles in an annular shape, the cleaning ring (71) is connected to a rotating part (10) for rotating it, and the rotating part (10) is connected to a rotating shaft (56).

5. The water sampling device for drone according to claim 4, characterized in that: The rotating part (10) comprises a hydraulic cylinder (101), the movable end of the hydraulic cylinder (101) is fixedly connected to a toothed plate (102), the toothed plate (102) is meshed with a gear one (103), the gear one (103) is sleeved on the outer side of the cleaning ring (71), and the mounting seat (9) is provided with an opening (109) that cooperates with the gear one (103) so that the toothed plate (102) can act on the gear one (103).

6. The water sampling device for drone according to claim 5, characterized in that: The tooth plate (102) is configured as a right-angle structure and has a toothed portion 1 (111) and a toothed portion 2 (112) on two perpendicular right-angled surfaces, respectively; the toothed portion 1 (111) meshes with the gear 1 (103); the toothed portion 2 (112) meshes with the gear 2 (104); the gear 2 (104) is connected to a synchronous wheel 1 (106) via a connecting shaft (105); the synchronous wheel 1 (106) is connected to a synchronous wheel 2 (108) via a synchronous belt (107); the synchronous wheel 2 (108) is coaxially connected to the rotating shaft (56); the synchronous wheel 1 (106) and the synchronous belt (107) are connected to a through slot (11) provided in the chassis (3).

7. The water sampling device for drone according to claim 2, characterized in that: The pipe opening of each adjustment pipe (621) and arc-shaped pipe (622) is provided with a gas sound-generating plate.

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