A microplastic collection device and its usage method suitable for triangular weirs

Abstract

This invention discloses a microplastic collection device and method suitable for triangular weirs, relating to the field of microplastic collection technology. The device includes a triangular weir, a filter screen, and a slot. The slot is attached to the bottom surface of the weir opening. The filter screen has a triangular opening, with its edges extending outwards to form protrusions that engage with the slot. This invention provides a microplastic collection device and method suitable for triangular weirs, addressing the technical problem that current methods for collecting microplastics from water flow at triangular weirs, where the collection device is directly placed in the water flow and easily washed away by strong currents, present a challenge.

Description

Technical Field

[0001] This invention relates to the field of microplastic collection technology, and in particular to a microplastic collection device and method of use suitable for triangular weirs. Background Technology

[0002] As people pay increasing attention to the environment of oceans and rivers, they are focusing more on microplastic sampling of water flow to assess water quality. To control water level and flow rate, thin-walled weirs are typically installed as barriers to top overflow. Thin-walled weirs can be classified into triangular weirs, trapezoidal weirs, rectangular weirs, and curved weirs, based on the shape of their notches. Currently, microplastic collection at triangular weirs involves placing the collection device directly in the water flow, which is easily washed away by the strong current. Summary of the Invention

[0003] This invention provides a microplastic collection device and method for use suitable for triangular weirs, which solves the technical problem that current methods for collecting microplastics from water flow at triangular weirs involve placing the collection device directly in the water flow, making it easy for it to be washed away by the strong water flow.

[0004] The present invention provides a microplastic collection device suitable for triangular weirs, comprising: a triangular weir, a filter screen, and a slot;

[0005] The slot is attached to the triangular weir along the bottom surface of the weir opening;

[0006] The mesh opening of the filter is triangular, and the edge of the mesh opening extends outward to form a protrusion, which is inserted into the slot.

[0007] Preferably, the slot is two straight slots, which are respectively arranged along the two sides of the bottom surface of the weir.

[0008] Preferably, the slot is a V-shaped slot, and the two sides of the V-shaped slot are arranged along the two sides of the bottom surface of the weir.

[0009] Preferably, the slot is attached to the rear side of the triangular weir.

[0010] Preferably, it further includes: a connecting clip;

[0011] The connecting clip includes a front clip and a rear clip, both of which are hollow triangles in shape;

[0012] The front clamp and the rear clamp clamp the protrusion from the front and rear respectively;

[0013] The connecting clip and the protrusion are engaged in the slot.

[0014] Preferably, both the front clip and the rear clip are provided with clip holes, which are located at the three corners of the hollow triangle;

[0015] The protrusion is provided with fixing holes corresponding to the clip holes;

[0016] Fixing screws are inserted into the clamping holes and the fixing holes.

[0017] Preferably, it further includes: a water gauge, which is installed on the triangular weir;

[0018] The water gauge and the slot are flush.

[0019] Preferably, the filter screen is a high-mesh filter screen.

[0020] Preferably, the filter screen is a triangular funnel-shaped filter screen.

[0021] Preferably, the filter screen is made of stainless steel.

[0022] The present invention provides a method for using a microplastic collection device suitable for triangular weirs, comprising: S1, attaching the card slot along the bottom surface of the weir opening onto the triangular weir;

[0023] S2. Extend the front and rear clips of the connecting clips outward from the triangular mesh opening edge of the filter screen to form a protrusion. Use fixing screws to pass through the clip holes and fixing holes to fix the connecting clips and the protrusions.

[0024] S3. Insert the connecting clip and the protrusion into the slot.

[0025] This invention provides a microplastic collection device suitable for triangular weirs, which has the following advantages:

[0026] Includes: triangular weir, filter screen, and card slot;

[0027] The slot is attached to the triangular weir along the bottom surface of the weir opening;

[0028] The mesh opening of the filter is triangular, and the edge of the mesh opening extends outward to form a protrusion, which is inserted into the slot.

[0029] This invention attaches a slot along the bottom surface of the triangular weir opening to the triangular weir. The filter screen opening is triangular, and the edge of the filter screen opening extends outward to form a protrusion. The protrusion is inserted into the slot, so that the filter screen opening can adapt to the triangular weir opening to collect microplastics. Furthermore, the filter screen is fixed on the triangular weir. When using this collection device to collect microplastics from the water flow at the triangular weir, they are not easily washed away by the strong water flow. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a structural diagram of the microplastic collection device suitable for triangular weirs according to an embodiment of the present invention;

[0032] Figure 2 This is a structural diagram of the triangular weir and straight bar groove described in an embodiment of the present invention;

[0033] Figure 3 This is a structural diagram of the two straight slots described in an embodiment of the present invention;

[0034] Figure 4 This is a structural diagram of the straight bar slot described in an embodiment of the present invention;

[0035] Figure 5 This is a structural diagram of the slot, connecting clip, and filter screen described in an embodiment of the present invention;

[0036] Figure 6 This is a structural diagram of the connecting clip according to an embodiment of the present invention;

[0037] Figure 7 This is a structural diagram of the connecting clip and fixing screw according to an embodiment of the present invention;

[0038] In the diagram: 1. Triangular weir; 11. Weir opening; 2. Slot; 21. Straight slot; 3. Filter screen; 31. Protrusion; 4. Connecting clip; 41. Front clip; 42. Rear clip; 43. Clip hole; 5. Fixing screw. Detailed Implementation

[0039] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0040] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0041] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features.

[0042] In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0044] This invention provides a microplastic collection device and method for use suitable for triangular weirs, which solves the technical problem that current methods for collecting microplastics from water flow at triangular weirs involve placing the collection device directly in the water flow, making it easy for it to be washed away by the strong water flow.

[0045] Please see Figure 1-2 An embodiment of the present invention provides a microplastic collection device suitable for a triangular weir, comprising: a triangular weir 1, a filter screen 3, and a slot 2;

[0046] The slot 2 is attached to the triangular weir 1 along the bottom surface of the weir opening 11;

[0047] The mesh opening of the filter screen 3 is triangular, and the edge of the mesh opening of the filter screen 3 extends outward to form a protrusion 31, which is inserted into the slot 2.

[0048] It should be noted that the slot 2 is attached to the bottom surface of the weir 11 along the weir opening 11 of the triangular weir 1. The mesh opening of the filter screen 3 is triangular, and the edge of the mesh opening of the filter screen 3 extends outward to form a protrusion 31. The protrusion 31 is inserted into the slot 2, so that the mesh opening of the filter screen 3 can adapt to the triangular weir opening 11 to collect microplastics. The filter screen 3 is fixed on the triangular weir 1. When using this collection device to collect microplastics from the water flow at the triangular weir 1, they are not easily washed away by the strong water flow.

[0049] The thickness of the triangular dam 1 is 10 mm, the length is 2500 mm, and the height is 1250 mm;

[0050] The total length of filter 3 is 300 mm, and the mesh opening of filter 3 is an isosceles right triangle with a side length of 1272 mm and a leg length of 900 mm.

[0051] Please see Figure 2-4 In a more specific embodiment, the slot 2 is two straight slots 21, which are respectively set along the two sides of the bottom surface of the weir 11.

[0052] It should be noted that the slot 2 consists of two straight slots 21. The two straight slots 21 are respectively set along the two sides of the bottom surface of the weir 11, so that when one straight slot 21 falls off or is damaged, the other straight slot 21 can still fix the filter screen 3.

[0053] The thickness of the straight groove 21 is 5 mm and the length is 850 mm.

[0054] In a more specific embodiment, the slot 2 is an L-shaped slot, and the walls of the slot 2 and the triangular weir 1 form a locking position, with the protrusion 31 locking into the locking position.

[0055] In another, more specific embodiment, the slot 2 is a V-shaped slot, with the two sides of the V-shaped slot set along the two sides of the bottom surface of the weir 11.

[0056] It should be noted that the slot 2 is a V-shaped slot, with both sides of the V-shaped slot set along the bottom surface of the weir 11. The integrated design of the slot 2 makes installation simple and can simultaneously fix both sides of the protrusion 31.

[0057] Please see Figure 1 In a more specific embodiment, the slot 2 is attached to the rear side of the triangular weir 1.

[0058] It should be noted that if the card slot 2 is attached to the front side of the triangular weir 1, the card slot 2 is easily damaged by the water flow because the front side of the triangular weir 1 faces the water flow. Therefore, the card slot 2 is attached to the rear side of the triangular weir 1, so that the triangular weir 1 can block the impact force and protect the integrity of the card slot 2.

[0059] Please see Figure 1 , 5 -7, in a more specific embodiment, it further includes: a connecting clip 4;

[0060] The connecting clip 4 includes a front clip 41 and a rear clip 42, both of which are hollow triangles.

[0061] The front clamp 41 and the rear clamp 42 clamp and fix the protrusion 31 from the front and rear respectively;

[0062] The connecting clip 4 and the protrusion 31 are inserted into the slot 2.

[0063] It should be noted that by setting the front clamp 41 and the rear clamp 42 of the connecting clamp 4 to clamp the protrusion 31 of the filter screen 3 from the front and rear, and by inserting the connecting clamp 4 and the protrusion 31 together into the slot 2, the strength of the protrusion 31 can be enhanced and better resist the impact of water flow.

[0064] The outer diameter of both the front clip 41 and the rear clip 42 is 1272 mm. 900 mm 900 mm, inner diameter 1200 mm 850mm 850 mm;

[0065] The triangular weir 1, the slot 2, the filter screen 3, and the connecting clip 4 are all symmetrical structures.

[0066] Please see Figure 5 , 7 In a more specific embodiment, both the front clip 41 and the rear clip 42 are provided with clip holes 43, which are located at the three corners of the hollow triangle.

[0067] The protrusion 31 has a fixing hole (not shown in the figure) corresponding to the clip hole 43.

[0068] Fixing screws 5 are inserted into the clip hole 43 and the fixing hole.

[0069] It should be noted that the clamping holes 43 on the front clamping plate 41 and the rear clamping plate 42 are aligned with the fixing holes on the protrusion 31, so that the fixing screws 5 pass through the clamping holes 43 and fixing holes of the rear clamping plate 42 and the clamping holes 43 of the front clamping plate 41 in sequence, and fix the front clamping plate 41 and the rear clamping plate 42 to the front and rear of the protrusion 31.

[0070] The diameter of the fixing hole and the clamping hole 43 is 6 mm;

[0071] The length of fixing screw 5 is 13 mm.

[0072] In a more specific embodiment, it also includes: a water gauge (not shown in the figure), which is installed on the triangular weir 1;

[0073] The water gauge and the slot 2 are flush.

[0074] It should be noted that a water gauge flush with the slot 2 is installed on the triangular weir 1 to measure water level changes and monitor flow rate changes in real time.

[0075] In a more specific embodiment, filter 3 is a high-mesh filter.

[0076] It should be noted that filter 3 is a high-mesh filter. The mesh size of a high-mesh filter is very small, which can effectively intercept and collect microplastics.

[0077] In a more specific embodiment, filter 3 is a triangular funnel-shaped filter.

[0078] It should be noted that when the water flows from the area with a larger cross-sectional area to the area with a smaller cross-sectional area on filter screen 3, the speed of the water flow will increase, which is beneficial for rapid water filtration.

[0079] In a more specific embodiment, the filter 3 is made of stainless steel.

[0080] It should be noted that stainless steel has good impact resistance and is not easily corroded when placed in water. The second slot is also made of stainless steel.

[0081] An embodiment of the present invention provides a method of using a microplastic collection device suitable for triangular weirs, comprising:

[0082] S1. Attach the card slot 2 along the bottom surface of the weir opening 11 of the triangular weir 1 to the triangular weir 1;

[0083] S2. The front clip 41 and the rear clip 42 of the connecting clip 4 extend outward from the protrusion 31 formed by the front and rear clips clamping the edge of the triangular mesh opening of the filter screen 3. The connecting clip 4 and the protrusion 31 are fixed by passing the fixing screw 5 through the clip hole 43 and the fixing hole.

[0084] S3. Insert the connecting clip 4 and the protrusion 31 into the slot 2.

[0085] In a more specific embodiment, after the filter 3 has achieved its collection purpose or when the filter 3 is damaged, the connecting clip 4 and the filter 3 are removed from the slot 2, and the fixing screws are loosened to remove the connecting clip 4 and the filter 3, so as to facilitate the collection of microplastics at different time periods.

[0086] The collection device of the present invention is assembled from various components, is detachable, has a simple structure, ingenious design, low cost, is easy to operate, and can be flexibly handled according to site conditions. It is also more conducive to carrying the device in field conditions.

[0087] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A microplastic collection device suitable for use with a V-notch weir, characterized in that, include: Triangular weir, filter screen, slot and connecting clip; The slot is two straight slots, which are respectively set along both sides of the bottom surface of the triangular weir and attached to the rear side of the triangular weir. The mesh opening of the filter screen is triangular, and the edge of the mesh opening of the filter screen extends outward to form a protrusion, which is inserted into the slot. The connecting clip includes a front clip and a rear clip, both of which are hollow triangles in shape; The front clamp and the rear clamp clamp the protrusion from the front and rear respectively; The connecting clip and the protrusion are engaged in the slot; Both the front clip and the rear clip have clip holes located at the three corners of the hollow triangle. The protrusion is provided with fixing holes corresponding to the clip holes; Fixing screws are inserted into the clamping holes and the fixing holes.

2. The microplastics collection device suitable for a V-notch weir according to claim 1, wherein, Also includes: A water gauge, which is installed on the triangular weir; The water gauge and the slot are flush.

3. The microplastic collection device suitable for triangular weirs according to claim 1, characterized in that, The filter screen is a high-mesh filter screen.

4. The microplastic collection device suitable for triangular weirs according to claim 1, characterized in that, The filter screen is a triangular funnel-shaped filter screen.

5. The microplastic collection device suitable for triangular weirs according to claim 1, characterized in that, The filter screen is made of stainless steel.

6. A method of using a microplastic collection device suitable for triangular weirs, characterized in that, The microplastic collection device applicable to the triangular dam as described in any one of claims 1 to 5 comprises: S1. Attach the card slot along the bottom surface of the triangular weir opening onto the triangular weir; S2. Extend the front and rear clips of the connecting clips outward from the triangular mesh opening edge of the filter screen to form a protrusion. Use fixing screws to pass through the clip holes and fixing holes to fix the connecting clips and the protrusions. S3. Insert the connecting clip and the protrusion into the slot.

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