Water quality detection sampling device based on unmanned aerial vehicle

Abstract

The invention relates to a water quality detection sampling device based on an unmanned aerial vehicle and belongs to the technical field of water quality sampling. The water quality detection sampling device based on the unmanned aerial vehicle comprises the unmanned aerial vehicle, a floating body, a mounting block, a motor, a connecting rope and a connecting assembly, the floating body is arranged at the bottom of the unmanned aerial vehicle, the mounting block is arranged at the bottom of the floating body, and the motor is arranged in the mounting block; by arranging the loading structure, the connecting assembly and the sampling assembly, continuous multi-time sampling can be carried out, multi-point sampling can be carried out only by utilizing the unmanned aerial vehicle to adjust the position, the sampling efficiency is improved, meanwhile, by arranging the connecting assembly, the influence of water bodies with different depths on the water body with the required sampling depth can be reduced in the sampling process, and the subsequent detection precision is improved; the position of the whole device in the water area can be quickly adjusted by utilizing the unmanned aerial vehicle and the floating body, the influence of sundries in the water on the device is reduced, and the problem that the sample cannot be carried and returned due to the fact that a driving structure cannot be normally used due to weed winding is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality sampling, and in particular to a water quality detection sampling device based on an unmanned aerial vehicle. Background Art

[0002] Water is indispensable in life and production activities, so the standard requirements for water quality are crucial. Water quality testing includes chromaticity, turbidity, odor, visible objects, and bacterial counts. When testing water quality, sampling equipment is needed to collect a certain amount of water samples for later quality testing. Sampling refers to the process of extracting individuals or samples from the population, that is, the process of testing or observing the population. Sampling is divided into two types: random sampling and non-random sampling.

[0003] After searching, a Chinese patent discloses a water quality detection sampling device based on a drone and a sampling method thereof (Announcement No. CN110745207B). The patented technology installs two sets of identical sub-chambers on the side wings of the main chamber. When three-point sampling is required in the same lake, the sub-chambers are brought into the lake through the main chamber, and then the sub-chambers are separated. The sub-chambers and the main chamber perform three-point sampling at the same time. However, the device is easily affected by debris in the water when moving in the water, and it is not convenient to carry samples back and does not have the function of continuous sampling. Therefore, the technicians in this field provide a water quality detection sampling device based on a drone to solve the problems raised in the above background technology. Summary of the invention

[0004] Based on this, it is necessary to provide a water quality detection sampling device based on a drone to address the problem that it is easily affected by water debris when moving in the water and is inconvenient to return and does not have the function of continuous sampling.

[0005] A water quality detection sampling device based on an unmanned aerial vehicle, comprising:

[0006] A drone, a floating body, a mounting block, a motor, a connecting rope and a connecting assembly, wherein the floating body is arranged at the bottom of the drone, the mounting block is arranged at the bottom of the floating body, the motor is arranged inside the mounting block, the output shaft of the motor is fixedly connected to a winding rod, the connecting rope is wound on the surface of the winding rod, and the connecting assembly is arranged at the unwinding end of the connecting rope;

[0007] A loading structure, the loading structure being arranged at the bottom of the mounting block;

[0008] A sampling structure, wherein the sampling structure is detachably arranged inside the loading structure;

[0009] Wherein, the connecting assembly includes a connecting tube, a connecting block and two mounting plates, one end of the connecting tube is fixedly connected to the unwinding end of the connecting rope, the connecting block is fixedly connected to the other end of the connecting tube and extends to the interior of the loading structure, a connecting cavity connected to the connecting tube is provided at the bottom of the connecting block, the two mounting plates are embedded and installed in the interior of the connecting block, and the lower ends of the mounting plates extend to the interior of the loading structure, and sliding grooves are provided on opposite sides of the two mounting plates.

[0010] In one embodiment, the opening cross-section of the slide groove is approximately "Z"-shaped, and the surface of the connecting block is provided with a through groove connected to an opening at one end of the slide groove, and the through groove is provided so that a subsequent sampling structure can pass through the connecting block.

[0011] In one of the embodiments, a mounting ring is fixedly connected to the surface of the connecting pipe, a connecting cavity is provided on the inner side of the mounting ring, a ring-shaped filter is embedded on the surface of the mounting ring, and a through hole connected to the connecting cavity is provided on the surface of the connecting pipe. The filter can isolate debris in the water body and prevent the debris from affecting the normal flow of the water body in the connecting pipe.

[0012] In one of the embodiments, a spacer ring is fixedly connected to the inner wall of the connecting tube, the spacer ring blocks the through hole, the surface of the spacer ring is provided with evenly distributed connecting grooves, and a blocking column is slidably connected to the inner wall of the spacer ring.

[0013] In one of the embodiments, the upper end of the shielding column passes through the spacer ring and is fixedly connected to an adsorption plate that is slidably connected to the inner wall of the connecting tube. The adsorption plate is a component made of martensitic stainless steel. The inner wall of the connecting tube is provided with an electromagnet located above the adsorption plate. Under normal conditions, the shielding column can shield the connecting groove under the action of the gravity of the adsorption plate, so that external water cannot enter the inner side of the spacer ring.

[0014] In one embodiment, the inner wall of the slide groove is slidably connected to a limit block, one side of the limit block is provided with an inclined surface, the top of the limit block passes through the slide groove and is slidably connected to the inner wall of the mounting plate, and a spring is fixedly connected between the top of the limit block and the inner wall of the mounting plate.

[0015] In one embodiment, the loading structure includes two partitions and two connecting plates, the two connecting plates are fixedly connected to the bottom of the mounting block and are symmetrically distributed, the two partitions are detachably arranged at both ends of the two connecting plates, and two symmetrically distributed dividing blocks are fixedly connected to the opposite sides of the two connecting plates, and a limiting cavity is formed between the two dividing blocks.

[0016] In one of the embodiments, a conveyor belt is disposed inside the limiting cavity, and a motor for driving the conveyor belt is disposed inside the partition block.

[0017] In one embodiment, the sampling structure includes a sampling tube, a connecting ring, a baffle and a sliding rod, the baffle is arranged on the top of the sampling tube, the connecting ring is fixedly connected to the surface of the sampling tube, the sliding rod is fixedly connected to the surface of the baffle and the diameter of the sliding rod matches the groove diameter of the slide groove, and the baffle is a rubber material component.

[0018] In one of the embodiments, a water inlet hole is provided on the surface of the baffle, a floating plate slidably connected to the inner wall of the sampling tube is fixedly connected to the bottom of the baffle, and evenly distributed water holes are provided on the surface of the floating plate.

[0019] The above-mentioned drone-based water quality detection sampling device can perform continuous multiple samplings by setting up a loading structure, a connecting component and a sampling component. Multi-point sampling can be performed only by adjusting the position of the drone, thereby improving the sampling efficiency. At the same time, the setting of the connecting component can reduce the impact of water bodies of different depths on the required sampling depth during the sampling process, thereby improving the accuracy of subsequent detections. In addition, the drone and the float can quickly adjust the position of the entire device in the water area, thereby reducing the impact of debris in the water body on the device, thereby avoiding the problem of samples being unable to be carried back due to the entanglement of weeds causing the driving structure to be unable to be used normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the separation of the mounting block and the floating body of the present invention;

[0023] Figure 3 It is a schematic diagram of the distribution of the motor, the connecting rope and the connecting assembly of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the loading structure of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the sampling structure of the present invention;

[0026] Figure 6 It is a schematic diagram of the distribution of the chute of the present invention;

[0027] Figure 7 It is a schematic diagram of the connection between the mounting ring and the connecting pipe of the present invention;

[0028] Figure 8 for Figure 6 A is an enlarged view of the middle image.

[0029] Reference numerals:

[0030] 100, drone; 200, float; 300, mounting block; 310, motor; 320, connecting rope; 330, connecting assembly; 3301, connecting block; 3302, through slot; 3303, mounting plate; 3304, slide slot; 3305, connecting pipe; 3306, electromagnet; 3307, mounting ring; 3308, adsorption plate; 3309, spacer ring; 3310, connecting slot; 3311 , shielding column; 3312, filter; 3313, through hole; 3314, spring; 3315, limit block; 400, loading structure; 410, partition; 420, connecting plate; 430, motor; 440, partition block; 450, conveyor belt; 500, sampling structure; 510, sampling tube; 520, connecting ring; 530, sliding rod; 540, water inlet; 550, baffle; 560, floating plate. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present invention are for illustrative purposes only and do not represent the only implementation method.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] Unless otherwise defined, all technical and scientific terms used in the specification of the present invention have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in the specification of the present invention includes any and all combinations of one or more related listed items.

[0036] Combine the following Figure 1-Figure 8 The present invention describes a water quality detection sampling device based on an unmanned aerial vehicle.

[0037] like Figure 1-Figure 8 As shown, in one embodiment, a water quality detection sampling device based on a drone includes:

[0038] The drone 100 is provided with a floating body 200 at the bottom of the drone 100, a mounting block 300 is provided at the bottom of the floating body 200, a motor 310 is provided inside the mounting block 300, an output shaft of the motor 310 is fixedly connected with a winding rod, the other end of the winding rod is rotatably connected with the inner wall of the mounting block 300, a connecting rope 320 is wound on the surface of the winding rod, and a connecting assembly 330 is provided at the unwinding end of the connecting rope 320;

[0039] A loading structure 400, wherein the loading structure 400 is disposed at the bottom of the mounting block 300;

[0040] The sampling structure 500 is detachably arranged inside the loading structure 400; wherein the connecting assembly 330 includes a connecting tube 3305 fixedly connected to the unwinding end of the connecting rope 320, the other end of the connecting tube 3305 is fixedly connected to a connecting block 3301, the bottom of the connecting block 3301 extends to the inside of the loading structure 400, and a connecting cavity is provided at the bottom of the connecting block 3301, the connecting tube 3305 is connected to the connecting cavity, the inner wall of the connecting block 3301 is fixedly connected with two symmetrically distributed mounting plates 3303, and the lower ends of the mounting plates 3303 extend to the inside of the loading structure 400, and slide grooves 3304 are provided on opposite sides of the two mounting plates 3303.

[0041] By starting the motor 310, the winding rod can be driven to rotate. By changing the rotation direction of the winding rod driven by the motor 310, the effect of winding and unwinding the connecting rope 320 can be achieved. By unwinding the connecting rope 320, the connecting component 330 can drive the sampling structure 500 deep into the water body under the action of gravity, so as to achieve the effect of sampling at different depths by adjusting the length of the unwinding connecting rope 320.

[0042] The drone 100 is a relatively mature component in the existing technical applications, and will not be described in detail here.

[0043] like Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the cross section of the slide groove 3304 is approximately “Z”-shaped, and a through groove 3302 connected to an opening at one end of the slide groove 3304 is provided on the surface of the connecting block 3301 .

[0044] The surface of the connecting tube 3305 is fixedly connected with a mounting ring 3307, the inner side of the mounting ring 3307 is provided with a connecting cavity, the surface of the mounting ring 3307 is embedded with a ring-shaped filter screen 3312, and the surface of the connecting tube 3305 is provided with a through hole 3313 connected with the connecting cavity.

[0045] The inner wall of the connecting tube 3305 is fixedly connected with a spacer ring 3309 , and the spacer ring 3309 blocks the through hole 3313 . The surface of the spacer ring 3309 is provided with evenly distributed connecting grooves 3310 , and the inner wall of the spacer ring 3309 is slidably connected with a blocking column 3311 .

[0046] The upper end of the shielding column 3311 passes through the spacer ring 3309 and is fixedly connected to an adsorption plate 3308 that is slidably connected to the inner wall of the connecting tube 3305. The adsorption plate 3308 is a component made of martensitic stainless steel. The inner wall of the connecting tube 3305 is provided with an electromagnet 3306 located above the adsorption plate 3308.

[0047] The inner wall of the slide groove 3304 is slidably connected to the limit block 3315, one side of the limit block 3315 is provided with an inclined surface, the top of the limit block 3315 passes through the slide groove 3304 and is slidably connected to the inner wall of the mounting plate 3303, and a spring 3314 is fixedly connected between the top of the limit block 3315 and the inner wall of the mounting plate 3303.

[0048] Under normal conditions, the shielding column 3311 can be tightly attached to the inner side of the partition ring 3309 under the action of gravity of the adsorption plate 3308. At this time, when the connecting tube 3305 is underwater, since the shielding column 3311 is located on the inner side of the partition ring 3309, the water from the outside cannot pass through the filter net 3312, the connecting cavity, the through hole 3313 and the connecting groove 3310 to enter the interior of the connecting tube 3305, until the connecting rope 320 is unwound to move the sampling structure 500 to the desired sampling position, and then the electromagnet 3306 is started to generate suction to move the adsorption plate 3308 upward, thereby driving the shielding column 3311 to move upward synchronously. At this time, the shielding column 3311 no longer completely blocks the inner side of the partition ring 3309, and the water from the outside can pass through the filter net 3312, the connecting cavity, the through hole 3313 and the connecting groove 3310 to enter the interior of the connecting tube 3305.

[0049] like Figure 3 and Figure 4 As shown, the loading structure 400 includes two partitions 410 and two connecting plates 420. The two connecting plates 420 are fixedly connected to the bottom of the mounting block 300 and are symmetrically distributed. The two partitions 410 are detachably arranged at both ends of the two connecting plates 420. Two symmetrically distributed partition blocks 440 are fixedly connected to the opposite sides of the two connecting plates 420. A limiting cavity is formed between the two partition blocks 440. The setting of the limiting cavity is used to prevent the sampling tube 510 from falling.

[0050] A conveyor belt 450 is disposed inside the limiting cavity, and a motor 430 for driving the conveyor belt 450 is disposed inside the partition block 440 .

[0051] The conveyor belt 450 can be driven by starting the motor 430 .

[0052] like Figure 5 As shown, the sampling structure 500 includes a sampling tube 510, a connecting ring 520, a baffle 550 and a sliding rod 530. The baffle 550 is arranged on the top of the sampling tube 510. The connecting ring 520 is fixedly connected to the surface of the sampling tube 510. The sliding rod 530 is fixedly connected to the surface of the baffle 550 and the diameter of the sliding rod 530 matches the groove diameter of the slide groove 3304. The baffle 550 is a rubber material component.

[0053] A water inlet hole 540 is formed on the surface of the baffle plate 550 , a floating plate 560 slidably connected to the inner wall of the sampling tube 510 is fixedly connected to the bottom of the baffle plate 550 , and water holes evenly distributed are formed on the surface of the floating plate 560 .

[0054] The sampling tube 510 is inserted between the two connecting plates 420 by removing the partition 410, wherein the connecting ring 520 contacts the surface of the conveyor belt 450. After the multiple sampling tubes 510 are installed, the partition 410 is installed to prevent them from falling from both sides. The conveyor belt 450 is driven by the motor 430 to convey the sampling tube 510 by the friction force with the connecting ring 520 during the conveyor belt 450 transmission, so that the sliding rod 530 on the sampling tube 510 pushes the inclined surface of the limit block 3315 to move it upward to compress the spring 3314. , until it passes through the limit block 3315. At this time, the motor 430 stops rotating, and the limit block 3315 is driven to reset under the gravity of the spring 3314 to limit the position of the sampling tube 510. At the same time, the baffle 550 is aligned with the connecting cavity to guide water into the interior of the connecting cavity through the connecting tube 3305, and the water is guided into the interior of the sampling tube 510 under the action of the water inlet hole 540, so that the motor 310 can unwind the connecting rope 320 to drive the connecting assembly 330 to move downward, so as to drive the sampling structure 500 into the water for sampling;

[0055] After the sampling is completed, the connecting rope 320 is reeled and reset, and because the interior of the sampling tube 510 is filled with water, the floating plate 560 drives the baffle 550 and the slide bar 530 to move up to the other opening of the slide groove 3304, that is, the opening connected to the through groove 3302. At this time, the motor 430 is started again to drive the conveyor belt 450 to transmit the subsequent sampling tube 510, which can push the sampling tube 510 filled with water through the through groove 3302, so that the sampling structure 500 that has not been sampled is connected to the connecting component 330 to facilitate re-sampling. Sampling can be repeated, and after the sampling is completed, the position can be quickly adjusted using the drone 100, so that it can achieve the effect of multi-point continuous sampling, which greatly improves the sampling efficiency.

[0056] Working principle: After the sampling structure 500 is installed, the drone 100 is used to move to the water area where sampling is required, and the drone 100 is lowered so that the float 200 supports the drone 100 to float on the water surface. This method can be flexibly applied to different water areas, reducing the situation where the traditional sampling method is inconvenient to move to different locations in the water area for sampling, improving the convenience of sampling, and reducing the impact of surface water plants and other debris on the hull driving equipment when using the hull to move the sampling method, reducing the number of maintenance and inspections. After moving to the required position, the connecting rope 320 is unwound according to the sampling depth, and the height of the connecting pipe 3305 in the water is adjusted to facilitate sampling at different depths. In normal conditions, the shielding column 3311 can be tightly attached to the inner side of the partition ring 3309 under the action of the gravity of the adsorption plate 3308. At this time, when the connecting pipe 3305 is underwater, due to the shielding column Because 3311 is located on the inner side of the partition ring 3309, water from the outside cannot pass through the filter screen 3312, the connecting cavity, the through hole 3313 and the connecting groove 3310 to enter the interior of the connecting tube 3305, until the connecting rope 320 is unwound to move the sampling structure 500 to the desired sampling position, and then the electromagnet 3306 is started to generate suction to move the adsorption plate 3308 upward, thereby driving the shielding column 3311 to move upward synchronously. At this time, the shielding column 3311 no longer completely blocks the inner side of the partition ring 3309, and water from the outside can pass through the filter screen 3312, the connecting cavity, the through hole 3313 and the connecting groove 3310 to enter the interior of the connecting tube 3305. This method can avoid the situation in which water of different depths enters the sampling tube 510 after the sampling tube 510 is placed in water during the traditional sampling process, affecting the accuracy of sampling, thereby greatly reducing the influence of water of different depths on sampling at a specified depth.

[0057] It should be noted that the drone 100, motor 310, electromagnet 3306 and motor 430 in the above description are all devices with relatively mature application of existing technologies. The specific models can be selected according to actual needs. At the same time, the drone 100, motor 310, electromagnet 3306 and motor 430 can be powered by a built-in power supply or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0058] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A water quality detection sampling device based on drone, characterized in that: include: A drone (100), a floating body (200), a mounting block (300), a motor (310), a connecting rope (320) and a connecting assembly (330), wherein the floating body (200) is arranged at the bottom of the drone (100), the mounting block (300) is arranged at the bottom of the floating body (200), the motor (310) is arranged inside the mounting block (300), the output shaft of the motor (310) is fixedly connected to a winding rod, the connecting rope (320) is wound on the surface of the winding rod, and the connecting assembly (330) is arranged at the unwinding end of the connecting rope (320); A loading structure (400), wherein the loading structure (400) is arranged at the bottom of the mounting block (300); A sampling structure (500), wherein the sampling structure (500) is detachably arranged inside the loading structure (400); Wherein, the connecting assembly (330) comprises a connecting tube (3305), a connecting block (3301) and two mounting plates (3303), one end of the connecting tube (3305) is fixedly connected to the unwinding end of the connecting rope (320), the connecting block (3301) is fixedly connected to the other end of the connecting tube (3305) and extends to the interior of the loading structure (400), a connecting cavity connected to the connecting tube (3305) is provided at the bottom of the connecting block (3301), the two mounting plates (3303) are embedded and installed in the interior of the connecting block (3301), and the lower end of the mounting plate (3303) extends to the interior of the loading structure (400), and a slide groove (3304) is provided on the opposite sides of the two mounting plates (3303).

2. The drone-based water quality detection sampling device according to claim 1 is characterized in that: The cross section of the slide groove (3304) is approximately "Z"-shaped, and the surface of the connecting block (3301) is provided with a through groove (3302) connected to an opening at one end of the slide groove (3304).

3. The drone-based water quality detection sampling device according to claim 2 is characterized in that: The surface of the connecting tube (3305) is fixedly connected with a mounting ring (3307), the inner side of the mounting ring (3307) is provided with a connecting cavity, the surface of the mounting ring (3307) is embedded with a filter screen (3312) distributed in an annular manner, and the surface of the connecting tube (3305) is provided with a through hole (3313) connected with the connecting cavity.

4. The drone-based water quality detection sampling device according to claim 3 is characterized in that: The inner wall of the connecting tube (3305) is fixedly connected with a spacer ring (3309), the spacer ring (3309) blocks the through hole (3313), the surface of the spacer ring (3309) is provided with evenly distributed connecting grooves (3310), and the inner wall of the spacer ring (3309) is slidably connected with a blocking column (3311).

5. The drone-based water quality detection sampling device according to claim 4 is characterized in that: The upper end of the shielding column (3311) passes through the spacer ring (3309) and is fixedly connected to an adsorption plate (3308) that is slidably connected to the inner wall of the connecting tube (3305). The adsorption plate (3308) is a component made of martensitic stainless steel material. The inner wall of the connecting tube (3305) is provided with an electromagnet (3306) located above the adsorption plate (3308).

6. The drone-based water quality detection sampling device according to claim 5 is characterized in that: The inner wall of the slide groove (3304) is slidably connected to a limit block (3315), one side of the limit block (3315) is provided with an inclined surface, the top of the limit block (3315) passes through the slide groove (3304) and is slidably connected to the inner wall of the mounting plate (3303), and a spring (3314) is fixedly connected between the top of the limit block (3315) and the inner wall of the mounting plate (3303).

7. The drone-based water quality detection sampling device according to claim 1 is characterized in that: The loading structure (400) comprises two partitions (410) and two connecting plates (420), wherein the two connecting plates (420) are fixedly connected to the bottom of the mounting block (300) and are symmetrically distributed, and the two partitions (410) are detachably arranged at both ends of the two connecting plates (420), and two symmetrically distributed partition blocks (440) are fixedly connected to opposite sides of the two connecting plates (420), and a limiting cavity is formed between the two partition blocks (440).

8. The drone-based water quality detection sampling device according to claim 7 is characterized in that: A conveyor belt (450) is arranged inside the limiting cavity, and a motor (430) for driving the conveyor belt (450) is arranged inside the partition block (440).

9. The drone-based water quality detection sampling device according to claim 1 is characterized in that: The sampling structure (500) comprises a sampling tube (510), a connecting ring (520), a baffle (550) and a sliding rod (530); the baffle (550) is arranged on the top of the sampling tube (510); the connecting ring (520) is fixedly connected to the surface of the sampling tube (510); the sliding rod (530) is fixedly connected to the surface of the baffle (550) and the diameter of the sliding rod (530) matches the groove diameter of the slide groove (3304); and the baffle (550) is a rubber material component.

10. The drone-based water quality detection sampling device according to claim 9 is characterized in that: A water inlet hole (540) is provided on the surface of the baffle (550), a floating plate (560) slidably connected to the inner wall of the sampling tube (510) is fixedly connected to the bottom of the baffle (550), and evenly distributed water holes are provided on the surface of the floating plate (560).

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