Water body sampling device

Abstract

The present application relates to the technical field of water sampling, and discloses a water sampling device. The water sampling device provided by the present application is characterized in that one of the first elastic connecting parts of the rotating energy storage part is fixed, and the other first elastic connecting part is in transmission connection with the cleaning brush. After the two first elastic connecting parts are rotated in the circumferential direction and a driving force is applied to the two first elastic connecting parts to fix them in the circumferential direction, the rotating energy storage part stores energy. After the driving force is removed, the rotating energy storage part releases energy and drives the cleaning brush to rotate. Since the filter screen has a rotary water filtering outer wall, and the cleaning brush is installed on the water filtering outer wall of the filter screen, the cleaning brush and the rotating energy storage part are designed in cooperation, so that the cleaning brush can complete the rotating cleaning action on the surface of the water filtering outer wall of the filter screen, actively scrape off the pollutants attached to the surface of the filter screen, maintain the original effective filtering area and porosity of the filter screen, and reduce the influence of the pollutants on the sampling accuracy.

Description

Technical Field

[0001] This invention relates to the field of water sampling technology, and more specifically to water sampling devices. Background Technology

[0002] With the increasing severity of global water pollution, establishing an efficient and accurate water quality monitoring system has become a core requirement for ensuring the health of aquatic ecosystems and the safety of public drinking water. Traditional water sampling methods typically rely on manual sampling. While effective in the short term, manual sampling is labor-intensive and susceptible to environmental changes and human error, leading to high uncertainty in the sampling process. Furthermore, since sampling areas may be distributed across vast bodies of water, manual sampling can result in limited coverage and places high demands on the safety of sampling personnel. Therefore, current technologies generally employ unmanned aerial vehicles (UAVs) equipped with water samplers.

[0003] In traditional methods, a sampling device is released after a drone hovers and positions itself, and water samples are obtained using gravity or pumping principles. To address interference from pollutants in the water (such as microorganisms, plankton, algae, and sediment) on the sampling equipment, existing devices are typically equipped with a pre-filter assembly. These filters often use stainless steel mesh or polymer microporous membranes to achieve pretreatment through physical interception.

[0004] However, in practical applications, it has been found that under long-term contact, pollutants tend to accumulate on the surface of the filter screen, causing the actual filtration pores of the filter screen to become smaller or even completely blocked. This not only affects the normal operation of the equipment, but also leads to poor water flow, which in turn affects the sampling accuracy. Summary of the Invention

[0005] In view of this, the water sampling device provided by the present invention can improve the problem of pollutants accumulating on the surface of the filter screen.

[0006] The water sampling device provided by this invention includes a drone body, a water sampler body, and a filtration mechanism. Specifically, the water sampler body is installed at the bottom of the drone body; the filtration mechanism includes a filter screen, a cleaning component, and a drive component. The filter screen has an outer filtration wall and an inner filtration wall, and a filtration chamber is formed by surrounding the filter chamber to accommodate the water sampling end of the water sampler body. The cleaning component includes a cleaning brush and a rotating energy storage component. The cleaning brush is installed on the outer filtration wall of the filter screen, and the rotating energy storage component has two first elastic connecting parts. The two first elastic connecting parts rotate relative to each other in the circumferential direction under the action of an external force. One of the first elastic connecting parts is fixed, and the other first elastic connecting part is drivenly connected to the cleaning brush. The drive component provides a driving force for the two first elastic connecting parts to be fixed relative to each other in the circumferential direction.

[0007] Beneficial effects: By adding a rotating energy storage component, one of the first elastic connecting parts of the rotating energy storage component is fixed, and the other first elastic connecting part is connected to the cleaning brush. After applying a driving force that fixes the two first elastic connecting parts in a circumferential direction, the rotating energy storage component stores energy. After the driving force is removed, the rotating energy storage component releases energy, driving the cleaning brush to rotate. Since the filter screen has a rotating water-filtering outer wall, and the cleaning brush is installed on the water-filtering outer wall of the filter screen, the coordinated design of the cleaning brush and the rotating energy storage component is realized. This allows the cleaning brush to complete the rotating cleaning action on the water-filtering outer wall of the filter screen, actively scraping off the pollutants attached to the surface of the filter screen, maintaining the original effective filtration area and porosity of the filter screen, allowing water to flow smoothly through the filter screen into the water-filtering chamber, extending the service life of the filter screen, and reducing the impact of pollutants on sampling accuracy.

[0008] In one optional embodiment, one of the first elastic connecting portions of the rotating energy storage component is fixed; the drive assembly includes a rotating shaft, a linkage plate, and a float plate. Specifically, the axial direction of the rotating shaft is parallel to the height direction, the rotating shaft is rotatably mounted on the bottom of the UAV body, and the rotating shaft is connected to the cleaning brush and to another first elastic connecting portion; the linkage plate is fixedly mounted on the rotating shaft and rotates around the rotating shaft; the float plate is slidably mounted on the rotating shaft and is located above the linkage plate, the float plate having a limiting state that restricts the rotation of the linkage plate by a limiting structure, and a state that slides circumferentially along the rotating shaft and floats away from the linkage plate.

[0009] Beneficial effects: By setting up a float plate, a linkage plate, and a limiting structure, the float plate restricts the rotation of the linkage plate in the air through the limiting structure, locking the linkage plate and the rotating shaft and preventing the energy storage component connected to the rotation from releasing energy. After the float plate, linkage plate, and limiting structure enter the water, the float plate floats upward along the axis of the rotating shaft under the action of buoyancy until it detaches from the linkage plate and moves to the water surface, releasing the limiting of the linkage plate. The rotating energy storage component releases the stored mechanical energy, providing torque to drive the cleaning brush to rotate, ensuring that the cleaning brush cleans the surface of the filter screen.

[0010] In one optional embodiment, the limiting structure includes: a limiting groove formed on the side of the float near the linkage plate, wherein at least two limiting grooves are provided and the at least two limiting grooves are arranged at intervals; and a limiting protrusion provided on the linkage plate, wherein the limiting protrusion slides in cooperation with the limiting groove, and the limiting protrusion and the limiting groove are arranged in a one-to-one correspondence.

[0011] Beneficial effects: By composing the limiting structure with limiting grooves formed on the side of the float plate near the linkage plate and limiting protrusions on the linkage plate, when the number of limiting grooves is set to at least two, the at least two sets of spaced limiting connection parts can be formed due to the at least two limiting grooves being spaced apart. This ensures that the linkage plate is fixed circumferentially, preventing it from driving the rotating shaft to rotate, ensuring that the rotating energy storage component can stably store energy, and avoiding energy loss due to accidental rotation that affects the cleaning action of the cleaning brush. At the same time, the connection of at least two sets of limiting grooves and limiting protrusions, due to the at least two limiting grooves being spaced apart and the limiting protrusions corresponding one-to-one with the limiting grooves, can disperse the contact stress between the linkage plate and the float plate, extending the service life of the limiting structure.

[0012] In one alternative embodiment, a plurality of blades are mounted on the outer wall of the float, and the blades are arranged in a circumferential array.

[0013] Beneficial effects: The outer wall of the float has several blades arranged in a circular array. After the float enters the water, it can rotate under the action of the water flow. The water flow can remove pollutants such as algae and silt attached to its surface, reducing the need for manual cleaning.

[0014] In one alternative implementation, the drive assembly further includes a protective rod mounted on the bottom of the float.

[0015] Beneficial effects: By installing the protective rod at the bottom of the float, the float rotates the protective rod when the blades are subjected to water flow. The rotating rod forms a radially radiating dynamic barrier, preventing fish, crustaceans, aquatic plants, and other organisms from approaching the water sampler, thus mitigating the risk of equipment displacement or damage caused by biological impact. Simultaneously, the rotating rod intercepts some contaminants, reducing the mechanical load and clogging risk of the filter screen, thereby optimizing the filtration mechanism. Furthermore, by utilizing the kinetic energy of the water flow, energy consumption can be reduced.

[0016] In one alternative embodiment, the water sampling device further includes an indicator mounted on the float.

[0017] Beneficial effects: By installing the indicator on the float, the operator can quickly locate the water sampler body in distant, turbid waters or at night, reducing search time and thus lowering water intake costs.

[0018] In one optional embodiment, the cleaning assembly further includes a limiting plate and an elastic buffer. The limiting plate is mounted above the cleaning brush; the elastic buffer has two second elastic connecting portions, which are respectively connected to the limiting plate and the cleaning brush, and the two elastic connecting portions have an energy storage state and an energy release state.

[0019] Beneficial effects: By using a limiting plate installed on the cleaning brush and an elastic buffer between the cleaning brush and the limiting plate, the external impact force on the cleaning brush can be absorbed through the alternation of energy storage and release, and the contact pressure of the cleaning brush can be automatically balanced, thereby improving the phenomena of "over-cleaning" and "under-cleaning".

[0020] In one optional embodiment, the water sampling device further includes a lifting mechanism, which comprises a mounting base, a mounting cylinder, a driving component, a winding rod, and a flexible traction component. The mounting base is mounted on the bottom of the UAV body; the mounting cylinder is mounted on the mounting base, and the mounting cylinder has a retraction chamber inside, with its bottom communicating with the retraction chamber through a through hole; the driving component includes a fixed end and a driving end, with the fixed end mounted on the mounting base; the winding rod is drivenly connected to the driving end of the driving component, and is horizontally arranged, penetrating the side wall of the mounting cylinder and extending into the retraction chamber; one end of the flexible traction component along its length is connected to the winding rod inside the retraction chamber, and the other end extends out of the mounting cylinder through a through hole and is connected to a rotating shaft, with the flexible traction component at least partially wound around the winding rod.

[0021] Beneficial effects: By fixing a mounting base and mounting cylinder to the bottom of the UAV body, and using a winding rod to drive the drive end of the drive component, the winding rod is arranged horizontally and extends through the side wall of the mounting cylinder to the take-up and release chamber. The drive component can drive the winding rod to rotate. Since one end of the flexible traction component along its length is connected to the winding rod inside the take-up and release chamber, and the other end extends to the outside of the mounting cylinder through a through hole and is connected to the rotating shaft, and the flexible traction component is at least partially wound around the winding rod, the flexible traction component can be continuously and smoothly taken up and released by controlling the drive component, and the height of the rotating shaft can be precisely controlled, thereby precisely controlling the height of the sampler.

[0022] In one optional embodiment, the lifting mechanism further includes a cleaning cylinder, a support, and a scraper. The cleaning cylinder is installed at the bottom of the mounting cylinder, and the inner wall of the cleaning cylinder encloses a cleaning chamber, the top and bottom of which are open; the support is installed at at least one of the top and bottom openings of the cleaning chamber; the scraper is installed on the support and is used to abut against the flexible traction member.

[0023] Beneficial effects: During the deployment and retraction of the flexible traction component, the scraper, which comes into contact with the flexible traction component, can scrape off contaminants on its surface, improving the corrosion or mechanical wear caused by dirt accumulation, thereby reducing the frequency of manual cleaning and lowering maintenance costs.

[0024] In one alternative embodiment, the lifting mechanism further includes an elastic reset member with two third elastic connecting parts, which act on the scraper and the support.

[0025] Beneficial effects: The two third elastic connecting parts, through energy storage and release, ensure that the scraper maintains stable contact with the surface of the flexible traction component during the retraction and extension of the flexible traction component. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the specific embodiments of the present invention, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 A perspective view of the water sampling device provided in an embodiment of the present invention;

[0028] Figure 2 A perspective view of the water sampling device provided in the embodiment of the present invention, in which the water filtration mechanism is installed at the water sampler body;

[0029] Figure 3 An exploded view of the water sampling device provided in an embodiment of the present invention, showing the water filtration mechanism installed at the water sampler body.

[0030] Figure 4 for Figure 3 A magnified view of part A in the middle;

[0031] Figure 5 This is a perspective view of the water sampling device provided in this embodiment of the invention when the float plate and the linkage plate are separated.

[0032] Figure 6 A perspective view of the water sampling device provided in an embodiment of the present invention;

[0033] Figure 7 for Figure 6 A magnified view of part B in the middle section;

[0034] Figure 8 A perspective view of the cleaning cylinder, support, scraper, elastic reset component, and pressure arc plate after installation in the lifting mechanism of the water sampling device provided in the embodiment of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. The drone itself;

[0037] 2. Water sampler body;

[0038] 3. Water filtration mechanism; 301. Filter screen; 302. Cleaning brush; 303. Rotary energy storage component; 304. Rotating shaft; 305. Linkage plate; 3051. Limiting protrusion; 306. Float plate; 3061. Limiting groove; 307. Blade; 308. Protective rod; 309. Limiting plate; 310. Elastic buffer component; 311. Connecting plate; 312. Mounting collar; 313. Fixed base; 314. Base; 315. Adjusting plate; 3151. Mounting groove;

[0039] 4. Indicators;

[0040] 5. Lifting mechanism; 501. Mounting base; 502. Mounting cylinder; 503. Driving component; 504. Winding rod; 505. Flexible traction component; 506. Stain removal cylinder; 507. Support; 508. Scraping component; 509. Elastic reset component; 510. Pressure arc plate;

[0041] 6. Counterweight. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] In traditional methods, a sampling device is released after a drone hovers and positions itself, and water samples are obtained using gravity or pumping principles. To address interference from pollutants in the water (such as microorganisms, plankton, algae, and sediment) on the sampling equipment, existing devices are typically equipped with a pre-filter assembly. These filters often use stainless steel mesh or polymer microporous membranes to achieve pretreatment through physical interception.

[0044] However, in practical applications, it has been found that under long-term contact, pollutants tend to accumulate on the surface of the filter screen, causing the actual filtration pores of the filter screen to become smaller or even completely blocked. This not only affects the normal operation of the equipment, but also leads to poor water flow, which in turn affects the sampling accuracy.

[0045] To address this issue, the present invention adds a filtration mechanism to solve the problems of impurity clogging and contamination during the use of the water quality sampling device.

[0046] The following is combined Figures 1 to 8 The following describes embodiments of the present invention.

[0047] According to embodiments of the present invention, a water sampling device is provided, such as... Figure 1 As shown, it includes the drone body 1, the water sampler body 2, and the water filtration mechanism 3.

[0048] Specifically, such as Figures 1 to 4 As shown, the water sampler body 2 is installed at the bottom of the UAV body 1; the water filtration mechanism 3 includes a filter screen 301, a cleaning component, and a drive component. The filter screen 301 has an outer wall and an inner wall for filtering water. The inner wall encloses a water filtration chamber, which is used to accommodate the water sampling end of the water sampler body 2. The cleaning component includes a cleaning brush 302 and a rotating energy storage component 303. The cleaning brush 302 is installed on the outer wall of the filter screen 301. The rotating energy storage component 303 has two first elastic connecting parts. The two first elastic connecting parts rotate relative to each other in the circumferential direction under the action of external force. One of the first elastic connecting parts is fixed, and the other first elastic connecting part is connected to the cleaning brush 302 in a transmission manner. The drive component provides the driving force for the two first elastic connecting parts to be fixed relative to each other in the circumferential direction.

[0049] With this configuration, by adding a rotating energy storage component 303, one of the first elastic connecting parts of the rotating energy storage component 303 is fixed, and the other first elastic connecting part is connected to the cleaning brush 302 in a transmission manner. After the two first elastic connecting parts rotate relative to each other in the circumferential direction and a driving force is applied to fix the two first elastic connecting parts relative to each other in the circumferential direction, the rotating energy storage component 303 stores energy. After the driving force is removed, the rotating energy storage component 303 releases energy, driving the cleaning brush 302 to rotate. Since the filter screen 301 has a rotating water-filtering outer wall and the cleaning brush 302 is installed on the water-filtering outer wall of the filter screen 301, the coordinated design of the cleaning brush 302 and the rotating energy storage component 303 is realized. This allows the cleaning brush 302 to complete the rotating cleaning action on the surface of the water-filtering outer wall of the filter screen 301, actively scraping away the pollutants attached to the surface of the filter screen, maintaining the original effective filtration area and porosity of the filter screen, so that the water flow can smoothly pass through the filter screen 301 into the water-filtering chamber, and extending the service life of the filter screen 301.

[0050] It can be explained that the outer wall of the filter has a rotating structure. When in use, the cleaning brush rotates around the central axis to clean the outer wall of the filter.

[0051] It can be noted that the rotating energy storage component 303 is selected as a coil spring, which is made of metal material and has a preset torsional stiffness.

[0052] Of course, in other alternative embodiments, the rotating energy storage element 303 can also be selected as a torsion spring or a planar spiral spring.

[0053] It can be noted that the filter screen 301 is constructed as a frustum or a spherical frustum.

[0054] During installation, the large-diameter end of the filter 301 is positioned along the height direction on the side of its small-diameter end facing away from the UAV body 1.

[0055] In one embodiment, such as Figures 1 to 5As shown, one of the first elastic connecting parts of the rotating energy storage component 303 is fixed; the drive assembly includes a rotating shaft 304, a linkage plate 305, and a floating plate 306.

[0056] Specifically, the axial direction of the rotating shaft 304 is parallel to the height direction. The rotating shaft 304 is rotatably mounted on the bottom of the UAV body 1 and is connected to the cleaning brush 302. The rotating shaft 304 is also connected to another first elastic connection part. The linkage plate 305 is fixedly mounted on the rotating shaft 304 and rotates around the rotating shaft 304. The float plate 306 is slidably sleeved on the rotating shaft 304 and is located above the linkage plate 305. The float plate 306 has a limiting state that restricts the rotation of the linkage plate 305 by a limiting structure, and a state that slides along the circumference of the rotating shaft 304 and floats away from the linkage plate 305.

[0057] With this configuration, by setting up the float plate 306, the linkage plate 305, and the limiting structure, the float plate 306 restricts the rotation of the linkage plate 305 in the air through the limiting structure, thereby locking the linkage plate 305 and the rotating shaft 304 and preventing the rotating energy storage component 303 connected to the rotation from releasing energy. After the float plate 306, the linkage plate 305, and the limiting structure enter the water, the float plate 306 floats upward along the axial direction of the rotating shaft 304 under the action of buoyancy until it detaches from the linkage plate 305 and moves to the water surface, releasing the limiting of the linkage plate 305. The rotating energy storage component 303 then releases the stored mechanical energy, outputs torque, and drives the cleaning brush 302 to rotate, ensuring that the cleaning brush 302 cleans the surface of the filter screen 301.

[0058] In one embodiment, such as Figure 3 and Figure 5 As shown, the limiting structure includes: a limiting groove 3061 formed on the side of the float 306 near the linkage plate 305, at least two limiting grooves 3061 are provided, and the at least two limiting grooves 3061 are arranged at intervals; and a limiting protrusion 3051 provided on the linkage plate 305, the limiting protrusion 3051 and the limiting groove 3061 are slidably engaged, and the limiting protrusion 3051 and the limiting groove 3061 are arranged in a one-to-one correspondence.

[0059] With this configuration, the limiting structure is composed of a limiting groove 3061 formed on the side of the float 306 near the linkage plate 305 and a limiting protrusion 3051 provided on the linkage plate 305. When the number of limiting grooves 3061 is set to at least two, since the at least two limiting grooves 3061 are spaced apart, at least two sets of spaced limiting connection parts can be formed, ensuring that the linkage plate 305 is fixed in the circumferential direction, preventing it from driving the rotating shaft 304 to rotate, ensuring that the rotating energy storage component 303 can stably store energy, and avoiding energy loss due to accidental rotation that affects the cleaning effect of the cleaning brush 302.

[0060] Meanwhile, the connection of at least two sets of limiting grooves 3061 and limiting protrusions 3051, with at least two limiting grooves 3061 arranged at intervals and the limiting protrusions 3051 corresponding to the limiting grooves 3061 one by one, can disperse the contact stress between the linkage plate 305 and the floating plate 306, and extend the service life of the limiting structure.

[0061] It can be noted that the density of the float plate 306 is less than that of water, while the density of the linkage plate 305 is greater than that of water (like metal).

[0062] Furthermore, the water sampling device also includes a counterweight 6, which is installed at the bottom of the water sampler body 2 during installation.

[0063] In the water sampling device provided in the above embodiments, when in use, the user controls the drone body 1 and places the water sampler body 2 above the target water area. After the water filtration mechanism 3 enters the water, the float 306 floats on the water surface due to buoyancy, while the linkage plate 305, under its own weight and the action of the counterweight 6, drives the water sampler body 2 to sink, and finally realizes the separation of the float 306 and the linkage plate 305, releasing the restriction on the rotating energy storage component 303. The rotating energy storage component 303 releases energy, drives the rotating shaft 304 to rotate, and then drives the cleaning brush 302 to rotate.

[0064] In one embodiment, such as Figures 1 to 3 As shown, the water filtration mechanism 3 also includes a connecting plate 311, a mounting collar 312, a fixed base 313, and a base 314.

[0065] Specifically, the connecting plate 311 is fixedly installed at the bottom of the linkage plate 305 and rotates coaxially with the linkage plate 305; the mounting collar 312 is fixedly installed at the bottom of the connecting plate 311, so that the connecting plate 311, the linkage plate 305 and the mounting collar 312 are fixed together. When the rotating energy storage component 303 releases energy, it can drive the connecting plate 311, the linkage plate 305 and the mounting collar 312 to rotate synchronously. During installation, one end of the rotating energy storage component 303 is fixed to the inner wall of the mounting collar 312; the fixed base 313 is rotatably installed at the bottom of the mounting collar 312, and the base 314 is installed below the fixed base 313. The fixed base 313 and the base 314 are coaxially arranged with the rotating shaft 304 and can rotate with it.

[0066] Furthermore, the filter screen 301 is installed at the bottom of the base 314.

[0067] Furthermore, the water sampler body 2 is fixedly installed at the bottom of the fixed base 313.

[0068] Preferably, the bottom of the fixed base 313 is provided with an external thread structure, the top of the water sampler body 2 is open, and a corresponding internal thread structure is provided. During installation, the external thread structure is screwed into the internal thread structure until it is tightened to complete the fixing of the water sampler body 2.

[0069] In one embodiment, such as Figure 2 , Figure 3 and Figure 5 As shown, several blades 307 are installed on the outer wall of the float plate 306, and the blades 307 are arranged in a circular array.

[0070] With this configuration, several blades 307 arranged in a circular array are provided on the outer wall of the float 306. After the float 306 enters the water and detaches from the linkage plate 305, the blades 307 rotate under the action of the water flow, which can remove pollutants such as algae and silt attached to its surface by the flushing action of the water flow, reducing the need for manual cleaning.

[0071] In one embodiment, such as Figure 1 , Figure 2 and Figure 6 As shown, the drive assembly also includes a protective rod 308, which is installed at the bottom of the float 306.

[0072] With this configuration, by installing the protective rod 308 at the bottom of the float 306, after the blade 307 is subjected to the water flow, the float 306 will drive the protective rod 308 to rotate. The protective rod 308 can form a radially radiating dynamic barrier as it rotates with the float 306, which can prevent fish, crustaceans, aquatic plants and other organisms from approaching the water sampler body 2, thus improving the phenomenon of equipment displacement or damage caused by biological impact.

[0073] Meanwhile, during the rotation of the protective rod 308, it can intercept some pollutants, reduce the mechanical load and clogging risk of the filter screen 301, thereby optimizing the filtration mechanism and preventing pollutants from affecting the normal sampling of the water sampler body 2.

[0074] In addition, by utilizing the kinetic energy of water flow, energy consumption can be reduced.

[0075] It can be explained that the protective rod 308 includes a first straight section, an outward expansion section, and a second straight section. The protective rod 308 is provided with several, and the cavity formed by the several first straight sections is smaller than the cavity formed by the several second straight sections. The water sampler body 2 is installed in the cavity formed by the several first straight sections.

[0076] In one embodiment, such as Figure 2 , Figure 3 and Figure 5 As shown, the water sampling device also includes an indicator 4, which is installed on the float 306.

[0077] This configuration, by installing indicator 4 (such as reflective markings, LED lights, fluorescent coatings, or GPS modules) on the float 306, enables operators to quickly locate the water sampler body 2 in distant, turbid waters, or at night, reducing search time, facilitating location and retrieval, and thus lowering water extraction costs.

[0078] In one embodiment, such as Figures 1 to 4 As shown, the cleaning assembly also includes a limiting plate 309 and an elastic buffer 310. The limiting plate 309 is mounted above the cleaning brush 302; the elastic buffer 310 is provided with two second elastic connecting parts, which are respectively connected to the limiting plate 309 and the cleaning brush 302, and the two elastic connecting parts have an energy storage state and an energy release state.

[0079] With this configuration, by using a limiting plate 309 mounted on the cleaning brush 302 and an elastic buffer 310 provided between the cleaning brush 302 and the limiting plate 309, the external impact force on the cleaning brush 302 can be absorbed through the alternation of energy storage and release, and the contact pressure of the cleaning brush 302 can be automatically balanced, thereby improving the phenomena of "over-cleaning" and "under-cleaning".

[0080] It can be explained that, for example Figures 1 to 4 As shown, the water filtration mechanism 3 also includes an adjustment plate 315. One end of the adjustment plate 315 is fixedly installed on the base 314, and the other end is away from the base 314 and is provided with an installation groove 3151. The installation groove 3151 is used to install one end of the limiting plate 309. The other end of the limiting plate 309 is away from the base 314 and extends toward the large diameter end of the filter screen 301.

[0081] In one embodiment, when the sampling depth is deep, such as Figure 1 , Figure 6 and Figure 7 As shown, the water sampling device also includes a lifting mechanism 5, which includes a mounting base 501, a mounting cylinder 502, a driving component 503, a winding rod 504, and a flexible traction component 505.

[0082] Specifically, the mounting base 501 is mounted on the bottom of the UAV body 1; the mounting cylinder 502 is mounted on the mounting base 501, the mounting cylinder 502 has a take-up and put-down chamber inside, and the bottom of the mounting cylinder 502 is connected to the take-up and put-down chamber through a through hole; the driving member 503 includes a fixed end and a driving end, the fixed end is mounted on the mounting base 501; the winding rod 504 is connected to the driving end of the driving member 503, the winding rod 504 is arranged horizontally, the winding rod 504 passes through the side wall of the mounting cylinder 502 and extends to the take-up and put-down chamber; one end of the flexible traction member 505 along its length direction is connected to the winding rod 504 inside the take-up and put-down chamber, and the other end extends to the outside of the mounting cylinder 502 through a through hole and is connected to the rotating shaft 304, and the flexible traction member 505 is at least partially wound around the winding rod 504.

[0083] With this configuration, a mounting base 501 and a mounting cylinder 502 are fixed to the bottom of the UAV body 1, and a winding rod 504 is connected to the drive end of the drive member 503. The winding rod 504 is horizontally arranged and extends through the side wall of the mounting cylinder 502 to the take-up and release chamber. The drive member 503 can drive the winding rod 504 to rotate. Since one end of the flexible traction member 505 along its length is connected to the winding rod 504 inside the take-up and release chamber, and the other end extends through a through hole to the outside of the mounting cylinder 502 and is connected to the rotating shaft 304, and the flexible traction member 505 is at least partially wound around the winding rod 504, the flexible traction member 505 can be continuously and smoothly taken up and released by controlling the drive member 503, and the height of the rotating shaft 304 can be precisely controlled, thereby precisely controlling the height of the sampler.

[0084] It can be noted that the drive component 503 is selected as a motor, and the flexible traction component 505 is selected as a rope or cable.

[0085] In use, the user activates the drive unit 503, which rotates the winding rod 504, thereby lowering the flexible traction component 505. This ensures that the flexible traction component 505 is released at a predetermined speed and depth, thus ensuring that the water sampler body 2 is lowered to the target water depth. After sampling is completed, the drive unit 503 drives the winding rod 504 to rotate in the opposite direction, ensuring that the flexible traction component 505 is retracted at a predetermined speed and depth.

[0086] In one embodiment, such as Figure 1 , Figures 6 to 8 As shown, the lifting mechanism 5 also includes a cleaning cylinder 506, a support 507, and a scraper 508. The cleaning cylinder 506 is installed at the bottom of the mounting cylinder 502, and the inner wall of the cleaning cylinder 506 forms a cleaning chamber with openings at the top and bottom. The support 507 is installed at at least one of the openings at the top and bottom of the cleaning chamber. The scraper 508 is installed on the support 507 and is used to abut against the flexible traction member 505.

[0087] With this configuration, during the deployment and retraction of the flexible traction component 505, the scraping component 508 abuts against the flexible traction component 505, which can scrape off contaminants on its surface, improving the phenomenon of corrosion or mechanical wear caused by dirt accumulation, thereby reducing the frequency of manual cleaning and lowering maintenance costs.

[0088] Meanwhile, the cleaning cylinder 506 has a cylindrical structure, which can guide the flexible traction component 505.

[0089] In one embodiment, it is still as follows Figure 1 , Figures 6 to 8 As shown, the lifting mechanism 5 also includes an elastic reset member 509, which has two third elastic connecting parts. The two third elastic connecting parts act on the scraper 508 and the support 507.

[0090] With this configuration, the two third elastic connecting parts, through energy storage and release, ensure that the scraper 508 remains in stable contact with the surface of the flexible traction component 505 during the retraction and extension of the flexible traction component 505.

[0091] Preferably, such as Figure 8 As shown, one of the third elastic connecting parts is connected to the support 507, and the other third elastic connecting part is equipped with a pressure arc plate 510. A scraper 508 is provided at the end of the pressure arc plate 510 away from the elastic reset member 509.

[0092] Furthermore, the pressure arc plate 510 is made of wear-resistant materials, such as polymers (e.g., polyurethane) or metal alloys (e.g., aluminum alloys), to extend its service life.

[0093] Of course, the scraper 508 is made of a flexible material, such as highly elastic silicone or rubber, which can provide a certain degree of adaptive clamping effect to minor dimensional deviations or dynamic offsets during operation.

[0094] It can be noted that, in order to effectively clean the outer wall of the flexible traction component 505, the scraper component 508 has an arc-shaped contact surface.

[0095] Furthermore, the number of scraper pieces 508 is one, two, or more.

[0096] Preferably, the number of scraping parts 508 is one. In this case, the size of the inner arc surface of the scraping part 508 needs to match the radial size of the flexible traction part 505, and the tolerance between the inner diameter of the cleaning channel and the outer diameter of the flexible traction part 505 should be controlled within ±0.1mm. This avoids the phenomenon of jamming during the retraction process due to the flexible traction part 505 being too thick, or the phenomenon of poor scraping effect or inability to scrape due to the flexible traction part 505 being too thin.

[0097] Of course, in other alternative embodiments, the number of scrapers 508 is two or more, in which case the two or more scrapers 508 are arranged circumferentially.

[0098] With this configuration, the scraper 508 can effectively contact the surface of the flexible traction component 505, ensuring that dirt, impurities and moisture on the surface of the flexible traction component 505 are scraped off during the retraction process, avoiding the accumulation of pollutants, ensuring that the surface of the flexible traction component 505 is smooth, and reducing the impact of dirt accumulation on its service life.

[0099] Before water sampling, the user rotates the linkage plate 305 to drive the rotating shaft 304 to rotate, which in turn drives the rotating energy storage component 303 to rotate and store energy until it reaches a predetermined energy level. Then, the float plate 306 is pressed down, and the limiting protrusion 3051 is inserted into the limiting groove 3061 to lock the float plate 306, thus locking the linkage plate 305. Subsequently, the drone body 1 is moved above the target water sampling area, and the water sampler body 2 is lowered. During the lowering process, the float plate 306 gradually disengages from the linkage plate 305, and the rotating energy storage component 303 gradually releases energy. During this energy release, the limiting plate 309 rotates, which in turn drives the cleaning brush 302 to clean the surface of the filter screen 301.

[0100] During this period, the linkage plate 305, under its own weight and the effect of the counterweight block 6, will keep the water sampler body 2 stable at the target water depth.

[0101] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A water body sampling device, characterized by, The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, 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body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: 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relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water body sampling device, including: The utility model relates to a water A guard rod (308) is installed at the bottom of the floating plate (306).

4. A water body sampling device according to claim 2 or 3, characterised in that, The water body sampling device further comprises: An indicating member (4) is installed on the floating plate (306).

5. The water body sampling device of any one of claims 1-3, wherein, The cleaning assembly further comprises: A limiting plate (309) is installed above the cleaning brush (302); An elastic buffer (310) is provided with two second elastic connecting portions, and the two second elastic connecting portions are connected with the limiting plate (309) and the cleaning brush (302) respectively, and the two elastic connecting portions have an energy storage state and an energy release state.

6. The water body sampling device of any one of claims 1-3, wherein, The water body sampling device further comprises a lifting mechanism (5), and the lifting mechanism (5) comprises: A mounting seat (501) is installed at the bottom of the unmanned aerial vehicle body (1); A mounting cylinder (502) is installed on the mounting seat (501), and the mounting cylinder (502) is internally provided with a storage chamber, and the bottom of the mounting cylinder (502) is communicated with the storage chamber through a through hole, A driving member (503) comprises a fixed end and a driving end, and the fixed end is installed on the mounting seat (501); A winding rod (504) is in transmission connection with the driving end of the driving member (503), the winding rod (504) is horizontally arranged, the winding rod (504) penetrates through the side wall of the mounting cylinder (502) and extends into the storage chamber; A flexible traction member (505) is connected with the winding rod (504) inside the storage chamber at one end along the length direction, and the other end extends to the outside of the mounting cylinder (502) through the through hole and is connected with the rotating shaft (304), and the flexible traction member (505) is at least partially wound on the winding rod (504).

7. The water body sampling device of claim 6, wherein, The lifting mechanism (5) further comprises: A decontamination cylinder (506) is installed at the bottom of the mounting cylinder (502), and the inner wall of the decontamination cylinder (506) forms a decontamination chamber, and the top and bottom of the decontamination chamber are open; A support (507) is installed at least one of the top opening and the bottom opening of the decontamination chamber; A scraping member (508) is installed on the support (507), and the scraping member (508) is used for abutting against the flexible traction member (505).

8. The water body sampling device of claim 7, wherein, The lifting mechanism (5) further comprises: An elastic reset member (509) is provided with two third elastic connecting portions, and the two third elastic connecting portions act on the scraping member (508) and the support (507).

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