An unmanned aerial vehicle device for water pollution monitoring

Abstract

The present invention discloses a drone device for water pollution monitoring, which includes a drone body. A cylinder is installed at the bottom of the drone body, and a scale rod is arranged inside the cylinder. A plurality of clamping blocks are equiangularly arranged at the bottom of the cylinder, and the lower ends of the clamping blocks are all located in an annular groove, and the annular groove is opened at the top of a nut. In addition, the nut is threadedly connected to the scale rod. The lower end of the scale rod is connected to a cavity concave frame, and a sampling cylinder for entering the water body to take samples is connected to the bottom of the cavity concave frame. For this drone device for water pollution monitoring, it can avoid the sample cavity and the water inlet being polluted by water bodies at other depths when the sampling cylinder enters the water body, which affects the accuracy of the test data. And after the sampling is completed, when the drone drives it to move upward out of the water body, while the floating plate moves upward on the water surface, the floating ball moves downward close to the bottom plate away from the water surface support, so that the vortex spring drives the closing plate to reset and block the water inlet, avoiding the water sample in the sample cavity from flowing out, achieving a certain effect of automatic sampling.

Description

Technical Field

[0001] The present invention relates to the technical field of water environment monitoring equipment, and specifically relates to an unmanned aerial vehicle device for water pollution monitoring. Background Art

[0002] With the improvement of people's living standards and the continuous enhancement of environmental protection awareness, people pay more and more attention to the protection of water bodies. Therefore, water environment monitoring staff need to regularly take water samples for inspection in places such as rivers and lakes in order to monitor the water quality of rivers and lakes, so as to achieve the effect of protecting the water environment of rivers and lakes.

[0003] However, the pollutants contained in the water environment at different depths are different. Therefore, it is necessary to take samples of water bodies at different depths. Most of the previous sampling methods were that staff swam to the water area to be inspected by tools such as boats and manually took samples of the water surface with containers. With the development of technology, staff began to install sampling devices on unmanned aerial vehicles and fly to the water area to be sampled for sampling.

[0004] However, when taking samples of water bodies, the inner wall of the sampling container is easily contaminated by the upper layer of water, which affects the data accuracy of sampling and testing deep water bodies. Moreover, when taking samples of water bodies in flowing waters, if the weight of the sampling device is insufficient, it is easily tilted by the flowing water, which affects the accuracy of the sampling water depth. In addition, the existing structure for sampling water bodies by cooperating an unmanned aerial vehicle and a sampling device often requires staff to control the flight of the unmanned aerial vehicle and additionally control the sampling device to take samples of water bodies, which is rather troublesome and inconvenient.

[0005] In view of the above problems, there is an urgent need to innovate and design on the basis of the original water pollution monitoring device. Summary of the Invention

[0006] The technical solution of the present invention aims at the technical problem that the existing technical solutions are too single, and provides a solution for an unmanned aerial vehicle device for water pollution monitoring that is significantly different from the prior art, so as to solve the problems proposed in the above background art: firstly, the sampling depth is limited; secondly, during the process of taking samples multiple times with the same sampling container, the inner wall of the container is easily contaminated by water bodies at different depths, which affects the accuracy of sampling and testing water bodies at different depths, and repeated sampling multiple times also greatly reduces the sampling efficiency of water quality.

[0007] To achieve the above object, the present invention provides the following technical solution: An unmanned aerial vehicle device for water pollution monitoring, including an unmanned aerial vehicle body. A fixed cylinder is installed at the bottom of the unmanned aerial vehicle body, and a graduated slide rod for adjusting the depth of the sampled water sample is slidably connected inside the fixed cylinder. And an adjusting structure is provided between the fixed cylinder and the graduated slide rod. The lower end of the graduated slide rod is fixedly connected with a mounting frame, and a sampling cylinder is fixedly connected to the bottom of the mounting frame. And a rotating structure is provided between the mounting frame and the top of the sampling cylinder. An activity cover is connected to the rotating structure, and a limiting groove and a limiting block for lifting stability and engaging and sliding connection are provided between the inner wall of the activity cover and the top and bottom of the sampling cylinder respectively. A number of sampling cavities for loading water samples are equidistantly arranged inside the sampling cylinder, and openings for water to pass through are provided on both sides of each sampling cavity through the outer wall of the sampling cylinder. And a sealing member for closely fitting with the openings is provided on the inner wall of the activity cover. A piston push plate is slidably engaged in each sampling cavity, and a push rod is rotatably connected to the side of each piston push plate away from the opening. And the end of each push rod penetrates through the outer wall of the sampling cylinder and is threadedly connected with a connecting plate. A threaded rod is threadedly connected to the middle area of the connecting plate, and the threaded rod is rotatably connected to one side of the outer wall of the sampling cylinder. And a discharge pipe opening for taking out the water sample corresponding to each sampling cavity is connected to the other side of the outer wall of the sampling cylinder. A sleeve column is installed at the bottom of the sampling cylinder, and a conical counterweight for keeping the sampling cylinder in a vertical state is threadedly connected to the lower end of the sleeve column. And an annular counterweight is nested on the outer wall of the sleeve column. A buoyancy trigger structure is provided on the outer wall of the fixed cylinder.

[0008] Preferably, the adjusting structure includes a rotating disk, an annular groove and a T-shaped block. The rotating disk is threadedly connected to the outer wall of the graduated slide rod, and an annular groove is opened on the top of the rotating disk. And a number of T-shaped blocks are slidably engaged at equal angles in the annular groove. The end of each T-shaped block is connected to the bottom of the fixed cylinder.

[0009] Preferably, the rotating structure includes a concave block, a rotating shaft, a scroll spring, a first wire pulley, a connecting rope and a second wire pulley. The top of the inner cavity of the mounting frame is connected with a concave block, and a rotating shaft is arranged inside the concave block. And a scroll spring is connected between the concave block and the rotating shaft. The lower end of the rotating shaft penetrates through the bottom of the mounting frame and is rotatably connected to the sampling cylinder. The outer wall of the rotating shaft is provided with a first wire pulley, and a connecting rope is connected to the first wire pulley. And the end of the connecting rope is bifurcated and connected to the trigger structure. A second wire pulley for winding the connecting rope is rotatably connected to the outer wall of the fixed cylinder, and a fixing mechanism is provided between the second wire pulley and the fixed cylinder.

[0010] Preferably, the mounting frame is of a "concave" structure, the openings are arranged on both sides of the sampling cavity close to the discharge pipe opening, and the activity cover is of a "concave" structure.

[0011] Preferably, the buoyancy trigger structure includes a floating plate, a bottom plate, a support column group, and a floating ball. The outer wall of the fixed cylinder is nested and fixedly connected with the floating plate and the bottom plate respectively. An annularly distributed support column group is arranged at equal angles between the floating plate and the bottom plate. A floating ball is slidably connected in each support column group, and a connecting rope is connected to the bottom of each floating ball.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: for this unmanned aerial vehicle device for water pollution monitoring, by rotating the nut, the scale rod extends or contracts different distances in the cylinder, thereby adjusting the distance between the sampling cylinder and the unmanned aerial vehicle, so as to adapt to different water sampling environments. Through the sample cavities arranged at equal intervals from top to bottom on the sampling cylinder, water bodies at different depths from the water surface to underwater can be sampled simultaneously and stored separately, so as to monitor the water environment more fully. Moreover, the symmetric setting on both sides of the sample cavity enables the device to sample water bodies in the countercurrent direction on one side and in the downstream direction on the other side simultaneously when sampling flowing water, so as to detect the water quality differences in two different states during the water body flow in the monitoring area. When testing the water body in a static state, taking two samples can conduct a secondary test to improve the accuracy of the test data.

[0013] Through the setting of the trigger structure, the closing plate, and the seal, the device can block the water inlet when the sampling cylinder enters the water to be tested, avoiding the sample cavity and the water inlet being polluted by water bodies at other depths when the sampling cylinder enters the water, which affects the accuracy of the test data. And after the sampling is completed, when the unmanned aerial vehicle drives the device to move upward out of the water body, while the floating plate moves upward on the water surface, the floating ball moves downward close to the bottom plate away from the water surface support, so that the vortex spring drives the closing plate to reset and block the water inlet, avoiding the water sample in the sample cavity from flowing out, achieving a certain effect of automatic sampling, without the need for additional manual operation, which is relatively convenient. Description of the Drawings

[0014] Figure 1 It is a front view sectional structure schematic diagram of the present invention;

[0015] Figure 2 It is a front view structure schematic diagram of the sampling cylinder of the present invention;

[0016] Figure 3 It is a rear view structure schematic diagram of the sampling cylinder of the present invention;

[0017] Figure 4 For the present invention Figure 1 The enlarged structure schematic diagram at A in;

[0018] Figure 5 For the present invention Figure 1 The enlarged structure schematic diagram at B in;

[0019] Figure 6 It is a top view structure schematic diagram of the sampling cavity of the present invention;

[0020] Figure 7 This is a schematic top view structure diagram of the movable cover of the present invention;

[0021] Figure 8 This is a schematic structure diagram of the connecting plate of the present invention.

[0022] In the figure: 1, unmanned aerial vehicle body; 2, fixed cylinder; 3, graduated slide bar; 4, adjusting structure; 401, rotating disc; 402, annular groove; 403, T-shaped block; 5, mounting bracket; 6, sampling cylinder; 7, rotating structure; 701, concave block; 702, rotating shaft; 703, scroll spring; 704, first working wire wheel; 705, connecting rope; 706, second working wire wheel; 8, movable cover; 9, sampling cavity; 10, opening; 11, piston push plate; 12, push rod; 13, connecting plate; 14, threaded rod; 15, discharge pipe orifice; 16, sleeve column; 17, conical counterweight; 18, buoyancy trigger structure; 1801, floating plate; 1802, bottom plate; 1803, strut group; 1804, floating ball. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figure 1-8, the present invention provides a technical solution: an unmanned aerial vehicle device for water pollution monitoring, including an unmanned aerial vehicle body 1, a fixed cylinder 2, a graduated slide bar 3, an adjustment structure 4, a rotating disk 401, an annular groove 402, a T-shaped block 403, a mounting bracket 5, a sampling cylinder 6, a rotating structure 7, a concave block 701, a rotating shaft 702, a scroll spring 703, a first working wire wheel 704, a connecting rope 705, a second working wire wheel 706, a movable cover 8, a sampling chamber 9, an opening 10, a piston push plate 11, a push rod 12, a connecting plate 13, a threaded rod 14, a discharge pipe opening 15, a sleeve column 16, a conical counterweight 17, a buoyancy trigger structure 18, a floating plate 1801, a bottom plate 1802, a support column group 1803, and a floating ball 1804. The bottom of the unmanned aerial vehicle body 1 is provided with a fixed cylinder 2, and a graduated slide bar 3 for adjusting the depth of the sampled water sample is slidably connected in the fixed cylinder 2. An adjustment structure 4 is provided between the fixed cylinder 2 and the graduated slide bar 3. The lower end of the graduated slide bar 3 is fixedly connected to a mounting bracket 5, and the bottom of the mounting bracket 5 is fixedly connected to a sampling cylinder 6. A rotating structure 7 is provided between the mounting bracket 5 and the top of the sampling cylinder 6. The rotating structure 7 is connected to a movable cover 8, and a limiting groove and a limiting block for lifting and stably engaging and sliding connection are provided between the inner wall of the movable cover 8 and the top and bottom of the sampling cylinder 6. A plurality of sampling chambers 9 for loading water samples are equidistantly arranged in the sampling cylinder 6. An opening 10 for water to pass through is provided on both sides of each sampling chamber 9 and penetrates through the outer wall of the sampling cylinder 6. A sealing member for closely fitting with the opening 10 is provided on the inner wall of the movable cover 8. A piston push plate 11 is slidably engaged in each sampling chamber 9. A push rod 12 is rotatably connected to the side of each piston push plate 11 away from the opening 10. The end of each push rod 12 penetrates through the outer wall of the sampling cylinder 6 and is threadedly connected to a connecting plate 13. A threaded rod 14 is threadedly connected to the middle area of the connecting plate 13, and the threaded rod 14 is rotatably connected to one side of the outer wall of the sampling cylinder 6. A discharge pipe opening 15 for taking out water samples corresponding to each sampling chamber 9 is connected to the other side of the outer wall of the sampling cylinder 6. A sleeve column 16 is installed at the bottom of the sampling cylinder 6, and a conical counterweight 17 for keeping the sampling cylinder 6 in a vertical state is threadedly connected to the lower end of the sleeve column 16. An annular counterweight is nested on the outer wall of the sleeve column 16. A buoyancy trigger structure 18 is provided on the outer wall of the fixed cylinder 2.

[0025] The adjustment structure 4 includes a rotating disk 401, an annular groove 402, and a T-shaped block 403. The rotating disk 401 is threadedly connected to the outer wall of the graduated slide bar 3. An annular groove 402 is opened at the top of the rotating disk 401, and a plurality of T-shaped blocks 403 are slidably engaged in the annular groove 402 at equal angles. The end of each T-shaped block 403 is connected to the bottom of the fixed cylinder 2.

[0026] The rotating structure 7 includes a concave block 701, a rotating shaft 702, a scroll spring 703, a first working wire wheel 704, a connecting rope 705, and a second working wire wheel 706. The top inside the cavity of the mounting bracket 5 is connected with the concave block 701, and the concave block 701 is provided with the rotating shaft 702. A scroll spring 703 is connected between the concave block 701 and the rotating shaft 702. The lower end of the rotating shaft 702 penetrates through the bottom of the mounting bracket 5 and is rotatably connected to the sampling cylinder 6. The outer wall of the rotating shaft 702 is provided with the first working wire wheel 704, and the connecting rope 705 is connected to the first working wire wheel 704. The end of the connecting rope 705 branches and is connected to the triggering structure 18. The outer wall of the fixed cylinder 2 is rotatably connected with a second working wire wheel 706 for winding the connecting rope 705, and a fixing mechanism is arranged between the second working wire wheel 706 and the fixed cylinder 2.

[0027] The mounting bracket 5 is of a "concave" structure, and the openings 10 are arranged on both sides of the sampling cavity 9 close to one side of the discharge pipe orifice 15. The movable cover 8 is of a "concave" structure.

[0028] The buoyancy triggering structure 18 includes a floating plate 1801, a bottom plate 1802, a pillar group 1803, and a floating ball 1804. The outer wall of the fixed cylinder 2 is respectively nested and fixedly connected with the floating plate 1801 and the bottom plate 1802. An annularly distributed pillar group 1803 is arranged at equal angles between the floating plate 1801 and the bottom plate 1802. A floating ball 1804 is slidably connected in each pillar group 1803, and the bottom of each floating ball 1804 is connected with the connecting rope 705.

[0029] Working principle: According to Figure 1 As shown, first, according to the depth of the water sample to be taken, rotate the rotating disk 401. Through the cooperation of the annular groove 402 and the T-block 403, the scale slide bar 3 is moved out of the fixed cylinder 2 to the required length, so as to facilitate the sampling cylinder 6 to sample the samples at different depths of the water source to be sampled, improving the flexibility of the device;

[0030] According to the flow rate of the water source to be sampled, nest the corresponding number of annular counterweight blocks onto the sleeve column 16, and then threadedly connect and fix the conical counterweight block 17 to the bottom of the sleeve column 16, so that when the subsequent sampling cylinder 6 is inserted into the water source, it is not easily affected by the water flow and tilted, thereby affecting the accuracy of the sampling detection data;

[0031] Then, by installing the fixed cylinder 2 and the UAV body 1, after controlling the UAV body 1 to fly to the position of the water source to be sampled, the UAV body 1 is controlled to descend, so that the sampling cylinder 6 is inserted into the water body with the assistance of the conical counterweight 17. During the process of the sampling cylinder 6 entering the water source, the sampling cavity 9 and the opening 10 are shielded and protected by the movable cover 8, preventing the sampling cylinder 6 from being contaminated by the upper water source before reaching the specified depth, thus affecting the final detection data. When the sampling cylinder 6 sinks to the specified area, at this time, the bottom plate 1802 is in the water, the floating plate 1801 floats on the water surface, and the floating ball 1804 in the middle of the two also moves upward under the buoyancy of the water, pulling the connecting rope 705 to drive the first working wire wheel 704 and the rotating shaft 702 to rotate. With the cooperation of the concave block 701, the scroll spring 703 is restricted. At the same time, as the rotating shaft 702 rotates, it drives the movable cover 8 to disengage from the blocking of the sampling cavity 9 and the opening 10, so that the water flow in this depth area passes through the opening 10 and the sampling cavity 9. With the cooperation of the conical counterweight 17 and the floating plate 1801, the sampling cylinder 6 is kept vertical. Since a number of sampling cavities 9 are arranged at intervals on the sampling cylinder 6, it is convenient to sample the water sources at multiple depths in this area, so as to facilitate detecting the difference in the pollution degree of water samples at different distances up and down;

[0032] During sampling, the UAV body 1 is controlled to fly upward, so that the bottom plate 1802, the support column group 1803 and the floating ball 1804 are separated from the water surface. The floating ball moves downward, making the connecting rope 705 slack, and the scroll spring 703 is released from the restraint, so that the rotating shaft 702, the first working wire wheel 704 and the movable cover 8 rotate and reset. The movable cover 8 blocks the two openings 10 again, so that the water source sample stored in the sampling cavity 9 is taken out of the water source as the sampling cylinder 6 moves upward. Connect the discharge pipe orifice 15 connected to the sampling cavity 9 to different storage containers, open the valve, and then rotate the threaded rod 14 to push the push rod 12 and the piston push plate 11 towards the discharge pipe orifice 15 through the connecting plate 13, so that the water samples in different sampling cavities 9 flow into different storage containers, achieving the purpose of quickly taking out the water samples in different sampling cavities 9 at one time. This is the working principle of the UAV device for water pollution monitoring.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An unmanned aerial vehicle device for water pollution monitoring, comprising an unmanned aerial vehicle body, characterized in that: A fixed cylinder is installed at the bottom of the UAV body. A scale slide rod for adjusting the depth of the sampled water sample is slidably connected inside the fixed cylinder. An adjusting structure is provided between the fixed cylinder and the scale slide rod. The lower end of the scale slide rod is fixedly connected with a mounting frame, and a sampling cylinder is fixedly connected to the bottom of the mounting frame. A rotating structure is provided between the mounting frame and the top of the sampling cylinder. The rotating structure includes a concave block, a rotating shaft, a scroll spring, a first wire pulley, a connecting rope, and a second wire pulley. The inner top of the cavity of the mounting frame is connected with a concave block, and a rotating shaft is arranged inside the concave block. A scroll spring is connected between the concave block and the rotating shaft. The lower end of the rotating shaft penetrates through the bottom of the mounting frame and is rotatably connected to the sampling cylinder. The outer wall of the rotating shaft is provided with a first wire pulley, and a connecting rope is connected to the first wire pulley. The end of the connecting rope branches and is connected to a buoyancy trigger structure. The outer wall of the fixed cylinder is rotatably connected with a second wire pulley for winding the connecting rope. A fixing mechanism is provided between the second wire pulley and the fixed cylinder. An activity cover is connected to the rotating structure. Limiting grooves and limiting blocks for improving stability and engaging and sliding connection are provided between the inner wall of the activity cover and the top and bottom of the sampling cylinder. A plurality of sampling cavities for loading water samples are equidistantly arranged inside the sampling cylinder. Openings for water to pass through are provided on both sides of each sampling cavity and penetrate through the outer wall of the sampling cylinder. A sealing member for tightly fitting with the openings is provided on the inner wall of the activity cover. A piston push plate is slidably engaged in each sampling cavity. A push rod is rotatably connected to the side of each piston push plate away from the opening. The end of each push rod penetrates through the outer wall of the sampling cylinder and is threadedly connected with a connecting plate. A threaded rod is threadedly connected to the middle area of the connecting plate. The threaded rod is rotatably connected to one side of the outer wall of the sampling cylinder. Discharge nozzles for taking out water samples corresponding to the sampling cavities one by one are connected to the other side of the outer wall of the sampling cylinder. A sleeve column is installed at the bottom of the sampling cylinder. A conical counterweight for keeping the sampling cylinder in a vertical state is threadedly connected to the lower end of the sleeve column. An annular counterweight is nested on the outer wall of the sleeve column. A buoyancy trigger structure is provided on the outer wall of the fixed cylinder. The buoyancy trigger structure includes a floating plate, a bottom plate, a pillar group, and a floating ball. The floating plate and the bottom plate are respectively nested and fixedly connected to the outer wall of the fixed cylinder. A ring-shaped distribution of pillar groups is arranged at equal angles between the floating plate and the bottom plate. A floating ball is slidably connected in each group of pillar groups. Connecting ropes are connected to the bottoms of the floating balls.

2. The unmanned aerial vehicle device for water pollution monitoring according to claim 1, characterized in that: The adjusting structure includes a rotating disk, a ring groove, and a T block. The rotating disk is threadedly connected to the outer wall of the scale slide rod. The ring groove is opened at the top of the rotating disk. A plurality of T blocks are slidably engaged at equal angles in the ring groove. The end of each T block is connected to the bottom of the fixed cylinder.

3. The unmanned aerial vehicle device for water pollution monitoring according to claim 1, characterized in that: The mounting frame is of a "concave" structure. The openings are arranged on both sides of the sampling cavity close to the discharge nozzle side. The activity cover is of a "concave" structure.

Images