Water quality monitoring sampling device based on unmanned aerial vehicle dropping

Abstract

The utility model discloses a water quality monitoring sampling device based on unmanned plane delivery realizes the goal of automatic sinking, fast, automatic sampling after delivery. The top and bottom of sampling cylinder are equipped with annular flange and check valve mounting disc, the annular flange is connected unmanned plane through the rope, and the check valve core is installed in the ladder hole of check valve mounting disc, and the spring is arranged between check valve core and ladder hole, the slip ring sliding sleeve is arranged on the outside of sampling cylinder and the magnetic ring body is fixedly installed on the slip ring, the inner chamber of sampling cylinder is provided with magnetic piston assembly, the magnetic piston assembly is attracted with the magnetic ring body of outside, when the magnetic ring body moves, the magnetic piston assembly is driven to move in the sampling cylinder. The technology uses unmanned plane to assist the suspension operation, realizes the goal of automatic sinking after delivery, and the water quality of water bottom layer is fast and automatically sampled, the check valve core is automatically closed after sampling, and returns to the shore quickly, and can repeatedly sample.

Description

Technical Field

[0001] This utility model relates to the technical field of a device for remote water quality monitoring and sampling based on drone deployment. Background Technology

[0002] For purposes such as monitoring, pollution incident investigation, scientific research projects, and environmental impact assessments, sampling points need to be set up at specific locations according to a predetermined plan. Taking water sampling in a common river as an example: sampling points are usually set up upstream (background section), downstream (pollution section), and a sufficiently distant downstream section (reduction section) near the sewage discharge outlet. The sampling points are generally divided into left, middle, and right sampling points, forming a 3x3 pattern with a total of 9 sampling points. Regarding water quality sampling devices, currently, most are carried out using manually operated small boats. That is, sampling personnel drive the small boat to the predetermined sampling points to collect samples. This method generally uses a sampling bucket. The structure of the sampling bucket can be referenced from a water quality sampling device disclosed in CN201917469U. This device includes a water tank and a support rod. The water tank is located at the lower end of the support rod, and a lever perpendicular to the support rod is installed at the upper end of the support rod. A pull-out switch is installed at the upper end of the water tank, and the lever is connected to the pull-out switch via a lever line.

[0003] To address the drawbacks of manual sampling, some organizations have developed unmanned sampling boats. For example, CN223037475U discloses such an unmanned sampling boat. The top of the support member is hinged to a balancing member, which can swing slightly relative to the support member. The plane of the balancing member is parallel to the water surface. The support member has at least two suspension ends, each detachably connected to a sampling bottle. Each suspension end can extend and retract a rope to allow the sampling bottle to enter and exit the water for sampling. The sampling bottle can simultaneously collect water samples from both sides and store the samples separately. This prevents inaccurate sampling depth due to boat movement.

[0004] This technology proposes a water quality monitoring and sampling device based on drone deployment, which enables remote control to complete water quality sampling at sampling points, and drone deployment has the characteristics of high work efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a water quality monitoring and sampling device based on drone deployment. By optimizing the sampling device, it aims to achieve rapid and automatic sampling of water quality at the bottom of the water body after deployment and automatic sinking.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A water quality monitoring sampling device based on drone deployment includes a support assembly, a sampling cylinder, a magnetic piston assembly, an annular flange, a one-way valve mounting plate, a one-way valve core, a spring, and a magnetic ring. The sampling cylinder, being non-magnetic, has an annular flange and a one-way valve mounting plate installed at its top and bottom. The annular flange has a rope hole and a strong magnet, and is connected to the drone via a rope. The one-way valve core is installed in a stepped hole in the one-way valve mounting plate, and a spring is placed between the one-way valve core and the stepped hole. The support assembly includes a slip ring and a support leg fixedly connected to each other. The slip ring is slidably fitted onto the outside of the sampling cylinder, and a magnetic ring is fixedly installed on the slip ring. When the slip ring slides to the highest point of the sampling cylinder, the magnetic ring magnetically engages with the strong magnet. A magnetic piston assembly is installed inside the sampling cylinder, and this assembly engages with the outer magnetic ring. When the magnetic ring moves, it drives the magnetic piston assembly to move within the sampling cylinder.

[0007] Furthermore, the magnetic piston assembly includes a piston, a rubber sealing ring, a strong magnetic ring, a baffle, and screws. The rubber sealing ring is installed in the mounting groove of the piston and dynamically engages with the inner wall of the sampling cylinder. The strong magnetic ring is fixed to the piston by the baffle and screws.

[0008] Furthermore, the baffle plate is provided with bends, and the two bends form an operating groove for easy operation.

[0009] Furthermore, the slip ring is a steel circular ring with three support legs evenly spaced along its circumference, providing sufficient stability.

[0010] Furthermore, a foot plate is fixedly installed at the bottom end of the support leg.

[0011] Furthermore, the number of rope-tying holes is three and they are evenly arranged along the circumference.

[0012] Furthermore, the sampling cylinder is a stainless steel cylinder or a copper alloy cylinder, which has non-magnetic characteristics to ensure the flexibility of the magnetic piston assembly's sliding.

[0013] Furthermore, the one-way valve mounting plate and the sampling cylinder are connected by a flange.

[0014] Furthermore, the one-way valve core includes a cone and a T-shaped valve body mechanically connected to each other, and a rubber pad layer is provided on the conical surface of the cone.

[0015] Furthermore, the rope is a brightly colored nylon rope, making it easy to observe and identify from a distance.

[0016] The beneficial effects of this utility model are: This technology uses drones for assisted suspension operations and can achieve automatic sinking after deployment, enabling rapid and automatic sampling of water quality at the bottom of the water body. After sampling, the one-way valve core automatically closes and the drone quickly returns to the shore, and sampling can be repeated. Attached Figure Description

[0017] Figure 1 This is a perspective view of the device, showing the slip ring and the annular flange in their initial separated state.

[0018] Figure 2 This is a three-dimensional view of the device, showing the slip ring and the annular flange in a separated sampling state.

[0019] Figure 3 This is a full sectional view of the device.

[0020] Figure 4 This is a three-dimensional view of the sampling tube.

[0021] Figure 5 This is a three-dimensional view of the magnetic piston assembly.

[0022] Figure 6 This is a cross-sectional view of the magnetic piston assembly.

[0023] Figure 7 The assembly diagram shows the sealing state of the check valve mounting plate and check valve core.

[0024] Figure 8 The assembly diagram shows the one-way valve mounting plate and one-way valve core in the open state.

[0025] Figure 9 This is a three-dimensional view of an annular flange.

[0026] Figure 10 A 3D diagram of the supporting components.

[0027] Figure 11 This demonstrates the water intake process of the device at the bottom of the river.

[0028] In the picture: 100. Support assembly; 110. Slip ring; 120. Support leg; 130. Base plate. 200, sampling cylinder; 210, threaded section; 220, flange. 300. Magnetic piston assembly; 310. Piston; 320. Rubber sealing ring; 330. Strong magnetic ring body; 340. Baffle plate. 400, Annular flange; 410, Internal thread; 420, Rope tie hole; 430, Strong magnetic block. 500. Check valve mounting plate; 510. Shaft shoulder. 600. One-way valve core; 610. Conical body; 620. T-shaped valve body. 700, Spring 800. Magnetic ring body. 900. Nylon rope. Detailed Implementation

[0029] This embodiment is described in conjunction with the appendix to the instruction manual. Figure 1 To be continued Figure 11 This paper details a water quality monitoring and sampling device deployed by a drone and its usage method. The device includes a support assembly 100, a sampling cylinder 200, a magnetic piston assembly 300, an annular flange 400, a one-way valve mounting plate 500, a one-way valve core 600, a spring 700, and a magnetic ring 800. The device has a tethering hole at its top for use with a drone for rapid, targeted placement and sampling.

[0030] The sampling cylinder 200 is made of stainless steel or copper alloy and is non-magnetic, not attracted to magnets. The sampling cylinder is a cylindrical structure with equal diameters at the top and bottom. The inner diameter of the cylinder is about 1 cm, which can be slightly larger or smaller. The wall thickness is about 2 mm, forming a rigid cylinder.

[0031] A threaded section 210 is provided at the top of the sampling cylinder 200, and a flange 220 is provided at the bottom. The threaded section 210 at the top is fixedly installed with the aforementioned annular flange 400 by threaded engagement. The annular flange 400 has internal threads 410 and is tightened and fixed to the top of the sampling cylinder 200 by screwing. Three rope holes 420 are provided on the outside of the annular flange 400. The three rope holes 420 are evenly arranged circumferentially and are connected by nylon ropes 900. After the three nylon ropes 900 are combined into one, the top of the rope is connected to the drone. Figure 11 (Not shown) is tightened and fixed to form a whole. The one-way valve mounting plate 500 mentioned above is fixedly connected to the flange 220 at the lower end of the sampling cylinder 200 by high-strength screws. The one-way valve mounting plate 500 is made of the same material as the sampling cylinder 200.

[0032] The one-way valve mounting plate 500 has the following structure: it is an overall disc-shaped part, and is fixed to the flange 220 of the sampling cylinder 200 using high-strength screws through bolt holes on the edge. A stepped hole is provided in the center of the one-way valve mounting plate 500. This stepped hole has a shoulder 510, which divides the stepped hole into two parts. The upper part of the stepped hole is a conical hole, used to mate with the conical body 610 in the one-way valve core 600. Specifically, a rubber layer is attached to the surface of the conical body to achieve a dynamic sealing fit between the one-way valve core 600 and the conical hole. Below the shoulder 510 is a mounting hole for a spring 700. One end of the spring 700 abuts against the shoulder 510, and the other end abuts against the distal end of the one-way valve core 600.

[0033] The aforementioned one-way valve core 600 includes a cone 610 and a T-shaped valve body 620. The T-shaped valve body 620 has a neck and a distal end, wherein the neck has a smaller diameter and a gap with the stepped hole after installation. The cone 610 is threadedly installed at the proximal end of the T-shaped valve body 620. The assembly process of the one-way valve core 600 is as follows: First, a spring 700 is fitted onto the neck of the T-shaped valve body 620, and then the T-shaped valve body 620 is passed through the stepped hole from bottom to top. The spring 700 is compressed, and after passing through, the cone 610 is fixedly installed at the top of the T-shaped valve body 620, thus completing the installation of the one-way valve core 600.

[0034] The aforementioned annular flange 400 is provided with multiple mounting holes, and multiple strong magnetic blocks 430 are fixedly installed in the mounting holes. The strong magnetic blocks 430 are cylindrical and are fixed in the mounting holes of the annular flange 400 by strong adhesive.

[0035] The support assembly 100 includes a slip ring 110 and support legs 120. The slip ring 110 is a steel circular ring with magnetic attraction properties. Three support legs 120 are evenly spaced along the circumference of the slip ring 110. A foot plate 130 is fixedly installed at the bottom of each support leg 120, providing a larger contact area with the ground. The foot plate 130 improves the stability of the entire device and ensures stable placement on the riverbed. A magnetic ring 800, a magnetic element typically a magnet or a strong magnet, is also fixedly installed on the slip ring 110 and bonded with a strong adhesive. The slip ring 110 is fitted onto the outside of the sampling cylinder 200 and allows for relative sliding with respect to the sampling cylinder 200. When the slip ring 110 slides to the high point of the sampling cylinder 200, the magnetic ring 800 on the slip ring 110 attracts the strong magnetic block 430 on the annular flange 400. In other words, after the magnetic ring 800 on the slip ring 110 attracts the strong magnetic block 430, their positions are fixed relative to each other, forming a fixed point, that is, a single-point attraction and fixation at the high point.

[0036] The magnetic piston assembly 300 includes a piston 310, a rubber sealing ring 320, a strong magnetic ring 330, a baffle 340, and screws. The piston 310 has two mounting grooves for mounting two rubber sealing rings 320, enabling dynamic piston movement against the inner wall of the sampling cylinder 200. The piston movement is powered by the outer magnetic ring 800, which attracts and drives the piston assembly through the cylinder wall. A neck is provided on the piston 310 for mounting the strong magnetic ring 330. During installation, a strong adhesive is applied for fixation. A screw hole is provided at the top of the piston 310 for screw-fixed mounting of a baffle 340. The baffle 340 limits the strong magnetic ring 330, providing safety redundancy and preventing it from falling off.

[0037] Furthermore, the aforementioned baffle 340 is provided with bends, and the two bends form an operating groove for assisting in the installation and removal of the strong magnetic ring.

[0038] The usage method of this water quality monitoring and sampling device is as follows: The first step is to secure the device with nylon rope 900 and perform a trial lift. The upper end of nylon rope 900 is fixed to the drone (not shown in the figure) for easy lifting. Before the formal lifting operation begins, the support assembly 100 is pulled down to the lower section of the sampling cylinder 200, thus separating the slip ring 110 in the support assembly 100 from the annular flange 400 at the top of the sampling cylinder 200. Under its own weight, the support assembly 100 is at its lowest point, and the two are not in a magnetically attracted state. During this process, the magnetic piston assembly 300 inside the cylinder also moves up and down under the action of the magnetic ring 800.

[0039] The second step involves manually controlling a drone to fly to the sampling point. During this process, the drone gradually descends, causing the sampling device to gradually sink into the water and eventually settle on the riverbed silt. The device is considered to have landed on the riverbed when the nylon rope 900 is no longer taut. For easy observation, the nylon rope 900 is preferably a bright color, such as red.

[0040] During this process, when the device just touches the bottom, the sampling cylinder 200 gradually descends under its own weight. That is, the sampling cylinder 200 slides relative to the slip ring 110. During this sliding process, the magnetic piston assembly 300 slides in the inner cavity of the sampling cylinder 200. This sliding occurs from bottom to top within the sampling cylinder 200. During the sliding process, the pressure inside the cavity is less than the water pressure outside the cavity, causing the water pressure outside the cavity to open the one-way valve core 600, thus achieving water sampling at that location. This state is maintained for no less than 2 minutes. The annular flange 400 at the top of the sampling cylinder 200 and the strong magnetic block 430 on the slip ring 110 are magnetically attracted. Under this attraction, the support assembly 100 and the sampling cylinder 200 are temporarily fixed relative to each other. At the same time, the water sample inside the sampling cylinder 200 is sealed inside the cylinder.

[0041] The third step involves the drone lifting the device out of the water and returning it to the shore. The operator then presses the one-way valve core 600 to transfer the water sample from the cylinder into a sampling bottle or test tube, completing one sampling operation. The slip ring 110 in the support assembly 100 is then separated from the annular flange 400 at the top of the sampling cylinder 200. This separation is done manually. During this process, the magnetic piston assembly 300 inside the cylinder moves up and down under the action of the magnetic ring 800.

[0042] The above description has fully elucidated the structure, principle, and usage of this device.

Claims

1. A water quality monitoring and sampling device based on unmanned aerial vehicle (UAV) deployment, comprising a support assembly (100), a sampling cylinder (200), a magnetic piston assembly (300), an annular flange (400), a one-way valve mounting plate (500), a one-way valve core (600), a spring (700), and a magnetic ring (800), characterized in that, The non-magnetic sampling cylinder (200) is equipped with an annular flange (400) and a one-way valve mounting plate (500) at its top and bottom. The annular flange (400) has a rope hole (420) and a strong magnet (430) for connecting to a drone via a rope. A one-way valve core (600) is installed in a stepped hole of the one-way valve mounting plate (500), and a spring (700) is provided between the one-way valve core (600) and the stepped hole. The support assembly (100) includes a slip ring (110) and a support leg (120) fixedly connected to each other. The slip ring... (110) A magnetic ring (800) is slidably sleeved on the outside of the sampling cylinder (200) and fixedly installed on the slip ring. When the slip ring (110) slides to the high point of the sampling cylinder (200), the magnetic ring (800) and the strong magnetic block (430) are magnetically attracted. A magnetic piston assembly (300) is provided in the inner cavity of the sampling cylinder (200). The magnetic piston assembly (300) is attracted to the outer magnetic ring (800). When the magnetic ring (800) moves, it drives the magnetic piston assembly (300) to move in the sampling cylinder.

2. The water quality monitoring and sampling device based on UAV deployment according to claim 1, characterized in that, The magnetic piston assembly (300) includes a piston (310), a rubber sealing ring (320), a strong magnetic ring (330), a baffle (340), and screws. The rubber sealing ring (320) is installed in the mounting groove of the piston (310) and dynamically pistons with the inner wall of the sampling cylinder (200). The strong magnetic ring (330) is fixed on the piston (310) by the baffle (340) and screws.

3. The water quality monitoring and sampling device based on UAV deployment according to claim 2, characterized in that, The baffle (340) is provided with bends, and the two bends form an operating groove.

4. A water quality monitoring and sampling device based on UAV deployment according to claim 3, characterized in that, The slip ring (110) is a steel ring, and three support legs (120) are installed at equal intervals along the circumference of the slip ring (110).

5. A water quality monitoring and sampling device based on UAV deployment according to claim 4, characterized in that, The bottom end of the support leg (120) is fixedly installed with a foot plate (130).

6. A water quality monitoring and sampling device based on UAV deployment according to claim 1, characterized in that, The number of rope holes (420) is three and they are evenly arranged along the circumference.

7. A water quality monitoring and sampling device based on UAV deployment according to claim 1, characterized in that, The sampling cylinder (200) is a stainless steel cylinder or a copper alloy cylinder.

8. A water quality monitoring and sampling device based on UAV deployment according to claim 1, characterized in that, The one-way valve mounting plate (500) and the sampling cylinder (200) are connected by a flange.

9. A water quality monitoring and sampling device based on UAV deployment according to claim 1, characterized in that, The one-way valve core (600) includes a cone (610) and a T-shaped valve body (620) mechanically connected to each other, and a rubber pad layer is provided on the conical surface of the cone.

10. A water quality monitoring and sampling device based on UAV deployment according to claim 1, characterized in that, The rope is a brightly colored nylon rope (900).

Images