Active water area micro-plastic collecting device

Abstract

The invention provides an active water area micro-plastic collecting device which comprises a main body, a first water tank and a second water tank. The water retaining assembly is arranged at the upper end of the main body, the water retaining assembly comprises a frame body, a plurality of supporting units are arranged on the frame body, stabilizing rings are arranged at the tail ends, away from the frame body, of the supporting units, and the water retaining assembly can be opened to be in a horn mouth shape and can also be contracted to be arranged in the first barrel; water retaining cloth is arranged in the water retaining assembly. The water flow power mounting assembly is arranged at the lower end of the main body, a filter screen is arranged at the joint of the water flow power mounting assembly and the main body, and a water flow suction device is arranged in the water flow power mounting assembly; and the flow detection assembly is provided with a flow meter and is used for detecting the amount of inflow water. When the device is used, the water flow entering speed can be increased, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of research and development of water area experimental equipment, and in particular to an active water area microplastic collection device. Background Art

[0002] Microplastics (MPs) are an emerging pollutant, typically referring to plastic products or plastic debris smaller than 5 mm. They exhibit similar ubiquity and ecotoxicity to other pollutants. Furthermore, a unique characteristic of microplastics is their ability to act as carriers for the transport of micropollutants. More importantly, additives in plastics can be released into the environment, negatively impacting aquatic life. Research on microplastics in my country's freshwaters began in 2015 in the Three Gorges Reservoir area. Since then, microplastics have been detected in rivers in the Sanjiangyuan region of the Yangtze River Basin, as well as in Dongting Lake, Honghu Lake, and Taihu Lake. Of particular note, the peak abundance of microplastics detected in my country's freshwater environments is 2-3 orders of magnitude higher than reported internationally. However, most researchers currently use filtration and other methods to collect microplastics, making the collection of microplastics from water bodies a time-consuming and labor-intensive task.

[0003] For example, the invention patent (CN 110470509 A) discloses a handheld portable microplastic collection device and method for collecting microplastics in water areas. The device is fixed in the water flow and can only passively collect microplastics slowly according to the speed of the water flow. When the water surface flow rate is slow, the amount of water flowing through the collection device is small, and the collection efficiency is extremely low. Summary of the Invention

[0004] Under this background, the present invention proposes an active water microplastic collection device, which has a built-in water flow suction device, which can increase the speed of water flow entering the active water microplastic collection device and increase the volume of water entering per unit time.

[0005] In order to overcome at least one of the above-mentioned shortcomings of the prior art, the present invention provides an active water microplastic collection device, comprising: A main body, the main body comprising a first cylinder; A water retaining assembly is provided at the upper end of the main body, comprising a frame, a plurality of support units provided on the frame, a stabilizing ring provided at the end of the support unit away from the frame, the water retaining assembly can be opened into a bell-shaped shape or retracted to be placed in the first cylinder, and a water retaining cloth is installed in the water retaining assembly; A water flow power installation component, the water flow power installation component is arranged at the lower end of the main body, a filter is provided at the connection between the water flow power installation component and the main body, and a water flow suction device is provided in the water flow power installation component; A flow detection component is provided with a flow meter for detecting the amount of water flowing in.

[0006] Furthermore, the support unit includes a movable ring, a support rod is provided on the movable ring, and a groove is provided on one end of the support rod away from the movable ring.

[0007] Furthermore, a plurality of hooks are provided on the support rod between the movable ring and the groove, and the hooks are L-shaped.

[0008] Furthermore, the frame is provided with a plurality of groups of limit blocks, and each group of limit blocks is arranged on both sides of the movable ring, which can limit the movable ring from sliding along the circumferential direction on the frame.

[0009] Furthermore, the main body includes a first cylinder, which is tubular, with several openings provided at the upper end of the first cylinder, and blocks provided at positions corresponding to the openings, so that several step-shaped grooves are formed at the upper end of the first cylinder.

[0010] Furthermore, the main body includes a first cylinder, which is tubular, with several openings provided at the upper end of the first cylinder, and blocks provided at positions corresponding to the openings, so that several step-shaped grooves are formed at the upper end of the first cylinder.

[0011] Furthermore, the diameter of the first cylinder matches the diameter of the frame, and the frame can be sleeved on the outer wall of the first cylinder. The position of the opening matches the movable ring, that is, when the water retaining assembly is installed on the main body, the movable ring can fall into the opening, and the opening abuts against the movable ring, which can limit the depth of the water retaining assembly.

[0012] Furthermore, the water flow power installation assembly includes a second cylinder, which is tubular. A convex ring is provided at the upper end of the second cylinder, and the lower end of the first cylinder can be inserted into the convex ring to form an assembly relationship. The convex ring and the second cylinder form a concave platform on the inner wall of the water flow power installation assembly, and a filter screen is placed on the concave platform.

[0013] Furthermore, in the recessed platform, a seal is provided on one or both sides of the filter screen, a plurality of connecting blocks are provided in the middle of the second cylinder, a water flow suction device mounting seat is provided in the middle of the connecting block, and a water flow suction device is installed on the water flow suction device mounting seat.

[0014] Furthermore, the flow detection component includes a water collecting cylinder in a contracted shape, the water collecting cylinder is connected to a drain pipe, and a flow meter is installed in the drain pipe.

[0015] The present invention has the following beneficial effects: The active microplastic collection device for water areas provided by the present invention, by providing a water retaining assembly, can increase the water flow cross-sectional area and the volume of water entering during use. By adding a water flow suction device within the water flow dynamics mounting assembly, the water inflow rate can be further increased, thereby increasing filtration efficiency and, consequently, water sampling efficiency. When not in use, the water retaining device can be stored within the main body, reducing floor space and making it easier to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and examples.

[0017] Figure 1 A three-dimensional schematic diagram of the active water microplastic collection device provided by the present invention; Figure 2 A top view of the active water microplastic collection device provided by the present invention; Figure 3 for Figure 2 Sectional view along plane AA; Figure 4 for Figure 1 Schematic diagram of the middle water retaining assembly; Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle; Figure 6 for Figure 4 Schematic diagram of the middle support unit; Figure 7 for Figure 1 Schematic diagram of the main body; Figure 8 for Figure 1 Schematic diagram of the mid-water flow dynamics installation components.

[0018] Figure numerals: 100, active water microplastic collection device; 1, water retaining assembly; 11, frame; 12, limit block; 13, support unit; 131, support rod; 1311, groove; 132, hook; 133, movable ring; 14, stabilizing ring; 2, main body; 21, first cylinder; 22, stop block; 23, opening; 3, water flow power installation assembly; 31, second cylinder; 32, convex ring; 321, concave platform; 33, seal; 34, connecting block; 35, water flow suction device mounting seat; 4, flow detection assembly; 41, water collecting cylinder; 42, drain pipe; 43, flow meter. DETAILED DESCRIPTION

[0019] Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow charts describe the various operations as sequential processes, many of the operations therein can be implemented in parallel, concurrently, or simultaneously. In addition, the order of the various operations can be rearranged. The process can be terminated when its operation is completed, but can also have additional steps not included in the accompanying drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0020] It should be understood that although the terms "first," "second," and the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used solely to distinguish one element from another. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of the exemplary embodiments. The term "and / or" as used herein includes any and all combinations of one or more of the listed associated items.

[0021] like Figures 1 to 4 As shown, the present invention provides an active water area microplastic collection device 100. The active water area microplastic collection device 100 includes a main body 2, a water retaining assembly 1 arranged at the front end of the main body 2, with the upstream as the front end and the downstream as the rear end in the direction of the water flow during operation, a water flow dynamic installation assembly 3 arranged at the rear end of the main body 2, and a flow detection assembly 4 connected to the water flow dynamic installation assembly 3. A water retaining cloth is provided in the water retaining assembly 1 (not shown in the figure). When in use, the active water area microplastic collection device 100 is placed horizontally in the water flow, so that the active water area microplastic collection device 100 is completely submerged under the water surface. Under the restriction of the water retaining cloth, water flows into the water retaining assembly 1 and flows out of the flow detection assembly 4, and the microplastics in the water body are collected by the active water area microplastic collection device 100.

[0022] like Figure 4 As shown, the water retaining assembly 1 has a trumpet-shaped appearance, with the upper end having a larger diameter than the lower end. The water retaining assembly 1 includes a frame 11, which is annular. Several support units 13 are installed on the frame 11, and a stabilizing ring 14 is provided at the end of the support unit 13 away from the frame 11.

[0023] like Figure 6 As shown, the support unit 13 includes a movable ring 133 , a support rod 131 is provided on the movable ring 133 , a groove 1311 is provided on the end of the support rod 131 away from the movable ring 133 , and a plurality of hooks 132 are provided on the support rod 131 between the movable ring 133 and the groove 1311 .

[0024] Specifically, the movable ring 133 is in the shape of a circular ring. The movable ring 133 can be mounted on the frame 11. The movable ring 133 can be freely rotated when mounted on the frame 11. A mounting hole (not shown in the figure) is provided on the movable ring 133. The support rod 131 is in the shape of an elongated strip. The end close to the movable ring 133 is inserted into the mounting hole to achieve an interference fit. In some embodiments, an internal thread is provided on the mounting hole. An external thread is provided on the end of the support rod 131 close to the movable ring 133. The support rod 131 and the movable ring 133 are connected by a thread. A groove 1311 is provided on the end of the support rod 131 away from the movable ring 133. The stabilizing ring 14 can be clamped in the groove 1311. The hook 132 can be provided in multiple groups. The hook 132 is L-shaped. The stabilizing ring 14 can be installed in the hook 132. When it is necessary to increase the opening area of ​​the water retaining assembly 1, the stabilizing ring 14 can be installed on the hook 132 close to one end of the movable ring 133, and a water retaining cloth of corresponding size can be placed. As Figure 5 As shown, in some embodiments, the support unit 13 is provided with multiple groups of limit blocks 12 , each group of limit blocks 12 is located on both sides of the movable ring 133 , and can limit the support unit 13 from sliding along the circumferential direction on the frame 11 .

[0025] The support unit 13 is installed on the frame 11 and can be stored inwardly until it is accommodated inside the main body 2. When not in use, it is convenient to store and can reduce the occupied space; when opened outward, it can form an expanded trumpet shape. When the water retaining cloth is installed in the water retaining assembly 1, the cross-sectional area of ​​water flow can be increased.

[0026] In some embodiments, the support rod 131 is made of a rubber rod. The groove 1311 at the end of the support rod 131 is elastic, and the stabilizing ring 14 can be better clamped in the groove 1311, eliminating the need for fixing components.

[0027] refer to Figure 7 As shown, the main body 2 includes a first cylinder 21, which is tubular and has several openings 23 at the upper end thereof. Stoppers 22 are provided at positions corresponding to the openings 23, so that several stepped grooves are formed at the upper end of the first cylinder 21.

[0028] Specifically, the diameter of the first cylinder 21 matches the diameter of the frame 11, and the frame 11 can be sleeved on the outer wall of the first cylinder 21. The position of the opening 23 matches the movable ring 133, that is, when the water retaining assembly 1 is installed on the main body 2, the movable ring 133 can fall into the opening 23, and the opening 23 abuts against the movable ring 133, which can limit the depth of the water retaining assembly 1.

[0029] refer to Figure 8As shown, the hydrodynamic mounting assembly 3 includes a second tubular body 31. The upper end of the second tubular body 31 is provided with a raised ring 32, which fits into the lower end of the first tubular body 21. The raised ring 32 and the second tubular body 31 form a recessed platform 321 on the inner wall of the hydrodynamic mounting assembly 3. A filter (not shown) is placed on the recessed platform 321. Seals 33 made of a flexible material, such as rubber, can be placed on one or both sides of the filter.

[0030] Specifically, the filter is preferably made of stainless steel, which has a certain degree of support. The edge of the filter can be pressed tightly by the seal 33 and the concave platform 321 and will not fall off due to water washing. The pore size of the filter can be selected as needed, such as 100 mesh or 200 mesh.

[0031] Specifically, when the main body 2 is assembled in the water flow dynamic installation assembly 3, a seal 33 is first placed on the recessed platform 321, then the filter is placed, and then another seal 33 is placed, so that the filter is sandwiched between the seals 33, and finally the main body 2 is inserted to prevent the filter from slipping.

[0032] Several connecting blocks 34 are provided in the middle of the second cylinder 31, and a water flow suction device mounting seat 35 is provided in the middle of the connecting block 34. A water flow suction device (not shown in the figure) is installed on the water flow suction device mounting seat 35. The water flow device is a conventional axial flow pump or an impeller connected to a motor. When working, it can push water into the flow detection component 4, forming a state in which the water in the first cylinder 21 is sucked into the flow detection component 4.

[0033] A flow detection assembly 4 is provided on the end of the second cylinder 31 away from the first cylinder 21, including a contracted water collecting cylinder 41, a drain pipe 42 is connected to the water collecting cylinder 41, and a flow meter 43 is installed in the drain pipe 42. The water collecting cylinder 41 is used to reduce the diameter of the water outlet, which is convenient for installing the flow meter 43. The smaller drain pipe 42 can also reduce the impact of turbulence on the flow meter 43.

[0034] In some embodiments, the lower end of the first cylinder 21 is provided with an external thread, and the inner wall of the protruding ring 32 is provided with an internal thread, and the main body 2 and the water flow power installation assembly 3 can be connected through threads.

[0035] When using the active water area microplastic collection device 100 provided by the present invention, first remove the water flow power installation component 3 from the lower end of the main body 2, install the filter screen, and then assemble it; then open the water retaining component 1 from the storage state, place the stabilizing ring 14 in the groove 1311, so that the water retaining component 1 forms a trumpet shape, place the water retaining cloth to increase the water flow cross-sectional area, and then place the active water area microplastic collection device 100 horizontally under the water surface, start the water flow suction device in the water flow power installation component 3 to further increase the water inlet speed, and record the flow rate of the filtered water body through the flow meter 43 installed on the flow detection component 4.

[0036] The present invention can increase the water flow cross-sectional area and the volume of water entering through the openable water retaining assembly 1 when in use. By adding a water flow suction device in the water flow power installation assembly 3, the water inlet speed can be further increased, the filtration efficiency can be increased, and the water sampling efficiency can be increased.

[0037] The above is only an embodiment of the present invention. Common knowledge such as the known specific structures and characteristics in the scheme is not described in detail here. Ordinary technicians in the field are aware of all common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all existing technologies in the field, and have the ability to apply conventional experimental means before that date. Ordinary technicians in the field can improve and implement this scheme in combination with their own abilities under the inspiration given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An active water microplastic collection device, characterized in that: The active water area microplastic collection device (100) comprises A main body (2), the main body (2) comprising a first cylinder (21); A water retaining assembly (1), the water retaining assembly (1) being arranged at the upper end of the main body (2), the water retaining assembly (1) comprising a frame (11), a plurality of support units (13) being provided on the frame (11), a stabilizing ring (14) being provided at the end of the support unit (13) away from the frame (11), the water retaining assembly (1) being able to be opened into a bell-shaped shape or to be retracted and placed into the first cylinder (21), and a water retaining cloth being installed in the water retaining assembly (1); A water flow power installation component (3), the water flow power installation component (3) is arranged at the lower end of the main body (2), a filter is provided at the connection between the water flow power installation component (3) and the main body (2), and a water flow suction device is provided in the water flow power installation component (3); A flow detection component (4) is provided with a flow meter (43) for detecting the amount of water flowing in.

2. The active water microplastic collection device according to claim 1, characterized in that: The support unit (13) comprises a movable ring (133), a support rod (131) is provided on the movable ring (133), and a groove (1311) is provided on one end of the support rod (131) away from the movable ring (133).

3. The active water area microplastic collection device according to claim 2, characterized in that: A plurality of hooks (132) are provided on the support rod (131) between the movable ring (133) and the groove (1311), and the hooks (132) are L-shaped.

4. The active water area microplastic collection device according to claim 2, characterized in that: The frame (11) is provided with a plurality of groups of limit blocks (12), and each group of limit blocks (12) is arranged on both sides of the movable ring (133) and can limit the movable ring (133) from sliding along the circumferential direction on the frame (11).

5. The active water microplastic collection device according to claim 1, characterized in that: The main body (2) comprises a first cylinder (21), the first cylinder (21) is tubular, a plurality of openings (23) are provided at the upper end of the first cylinder (21), and stoppers (22) are provided at positions corresponding to the openings (23), so that a plurality of step-shaped grooves are formed at the upper end of the first cylinder (21).

6. The active water area microplastic collection device according to claim 2, characterized in that: The main body (2) comprises a first cylinder (21), the first cylinder (21) is tubular, a plurality of openings (23) are provided at the upper end of the first cylinder (21), and stoppers (22) are provided at positions corresponding to the openings (23), so that a plurality of step-shaped grooves are formed at the upper end of the first cylinder (21).

7. The active water area microplastic collection device according to claim 6, characterized in that: The diameter of the first cylinder (21) matches the diameter of the frame (11), and the frame (11) can be sleeved on the outer wall of the first cylinder (21). The position of the opening (23) matches the position of the movable ring (133), that is, when the water retaining assembly (1) is installed on the main body (2), the movable ring (133) can fall into the opening (23), and the opening (23) abuts against the movable ring (133), which can limit the insertion depth of the water retaining assembly (1).

8. The active water microplastic collection device according to claim 1, characterized in that: The water flow power installation assembly (3) includes a second cylinder (31), the second cylinder (31) is tubular, and a convex ring (32) is provided at the upper end of the second cylinder (31). The lower end of the first cylinder (21) can be inserted into the convex ring (32) to form an assembly relationship. The convex ring (32) and the second cylinder (31) form a concave platform (321) on the inner wall of the water flow power installation assembly (3), and a filter screen is placed on the concave platform (321).

9. The active water microplastic collection device according to claim 1, characterized in that: A sealing member (33) is provided on one or both sides of the filter screen in the recessed platform (321). A plurality of connecting blocks (34) are provided in the middle of the second cylinder (31). A water flow suction device mounting seat (35) is provided in the middle of the connecting block (34). A water flow suction device is mounted on the water flow suction device mounting seat (35).

10. The active water microplastic collection device according to claim 1, characterized in that: The flow detection assembly (4) comprises a water collecting cylinder (41) in a contracted shape, a drainage pipe (42) being connected to the water collecting cylinder (41), and a flow meter (43) being installed in the drainage pipe (42).

Images