A microplastics collection device suitable for a rectangular weir and method of use

Abstract

This invention discloses a microplastic collection device and its usage method suitable for rectangular weirs, relating to the field of microplastic collection technology. The microplastic collection device for rectangular weirs includes: a rectangular weir, a filter screen, and a support; the support includes a main rod, a first clamping member, and a first supporting rod; the first clamping member includes a first horizontal rod, a first vertical rod, and a second vertical rod, the first and second vertical rods being parallel, and the first horizontal rod being vertically connected above the first and second vertical rods; the first horizontal rod, the first vertical rod, and the second vertical rod are respectively located at the top, rear, and front sides of the rectangular weir, jointly clamping the rectangular weir; the main rod and the first supporting rod are both located on the front side of the rectangular weir, the first supporting rod and the second vertical rod are parallel, and both the first supporting rod and the second vertical rod are vertically connected to the main rod; the filter screen is located at the weir opening of the rectangular weir, the mesh opening of the filter screen is larger than the weir opening, and the edge of the mesh opening is wedged between the front side of the rectangular weir and the first supporting rod.

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 rectangular 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 flows 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 rectangular 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 its usage method suitable for rectangular weirs, which solves the technical problem that current methods for collecting microplastics from water flow at rectangular weirs involve placing the collection device directly in the water flow, making it easy for it to be washed away by the strong current.

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

[0005] The bracket includes a main rod, a first clamping member, and a first support rod;

[0006] The first clamping member includes a first horizontal bar, a first vertical bar, and a second vertical bar. The first vertical bar and the second vertical bar are parallel, and the first horizontal bar is vertically connected above the first vertical bar and the second vertical bar.

[0007] The first horizontal bar, the first vertical bar, and the second vertical bar are located at the top, rear, and front sides of the rectangular weir, respectively, and together clamp the rectangular weir.

[0008] The main rod and the first support rod are both located on the front side of the rectangular weir. The first support rod and the second vertical rod are parallel, and the first support rod and the second vertical rod are both perpendicularly connected to the main rod.

[0009] The filter screen is located at the mouth of the rectangular weir, and the opening of the filter screen is larger than the mouth of the weir. The edge of the opening is wedged between the front side of the rectangular weir and the first support rod.

[0010] Preferably, the bracket further includes a first sliding buckle;

[0011] The first sliding buckle has a first vertical slot that extends through the upper and lower sides, and the first sliding buckle has a first horizontal slot that extends through the left and right sides.

[0012] The first support rod passes through the first vertical slot, and the main rod passes through the first horizontal slot.

[0013] Preferably, the bracket further includes a second sliding buckle;

[0014] The second sliding buckle has a second vertical slot that extends through the upper and lower sides, and the second sliding buckle has a second horizontal slot that extends through the left and right sides;

[0015] The second vertical rod passes through the second vertical slot, and the main rod passes through the second horizontal slot.

[0016] Preferably, the bracket further includes a first adjusting buckle;

[0017] The first adjusting buckle is fixedly sleeved downward at the connection between the first horizontal bar and the first vertical bar.

[0018] Preferably, the bracket further includes a second adjusting buckle;

[0019] The second adjusting buckle is fixedly sleeved downward at the connection between the first horizontal bar and the second vertical bar.

[0020] Preferably, the filter screen is provided with two stainless steel circular plates, which are respectively attached to the front and rear sides of the mesh opening edge of the filter screen;

[0021] The stainless steel ring extends outward to form annular holes, and the annular holes of the two stainless steel rings correspond to each other.

[0022] The first support rod is fitted with a fixing buckle, and the fixing buckle has a fixing hole, which is connected to the annular hole.

[0023] Preferably, the filter screen is a funnel-shaped filter screen.

[0024] Preferably, the bottom end of the first support rod is a pointed tip.

[0025] Preferably, the bracket further includes a second clamping member and a second support rod;

[0026] The second clamping member is parallel to the first clamping member;

[0027] The second clamping member includes a second horizontal bar, a third vertical bar, and a fourth vertical bar, wherein the third vertical bar and the fourth vertical bar are parallel, and the second horizontal bar is vertically connected above the third vertical bar and the fourth vertical bar;

[0028] The second horizontal bar is located at the top of the rectangular weir, and the third and fourth vertical bars are located at the rear and front sides of the rectangular weir, respectively, clamping the rectangular weir.

[0029] The second support rod is located on the front side of the rectangular weir. The second support rod is parallel to the fourth vertical rod, and both the second support rod and the fourth vertical rod are perpendicularly connected to the main rod.

[0030] The first support rod and the second support rod are located between the second vertical rod and the fourth vertical rod;

[0031] The edge of the mesh opening is wedged between the front side of the rectangular weir and the second support rod.

[0032] A method of using a microplastic collection device suitable for rectangular weirs includes:

[0033] S1. Pass the main rod through the first horizontal slot of the first sliding buckle, pass the first support rod through the first vertical slot of the first sliding buckle, insert the tip of the first support rod into the bottom soil of the rectangular weir, adjust the position of the first sliding buckle on the first support rod so that the bottom surface of the main rod and the front side of the weir mouth of the rectangular weir are aligned, adjust the position of the first sliding buckle on the main rod so that the first support rod and the side of the weir mouth of the rectangular weir are aligned, and fix the position of the first sliding buckle.

[0034] S2. Place the first vertical rod and the second vertical rod of the first clamping member on the rear and front sides of the rectangular weir to clamp the rectangular weir. Place the first horizontal rod above the first vertical rod and the second vertical rod. Use the first adjusting buckle to fix it downwards at the connection between the first horizontal rod and the first vertical rod. Use the second adjusting buckle to fix it downwards at the connection between the first horizontal rod and the second vertical rod.

[0035] S3. Pass the main rod through the second horizontal slot of the second sliding buckle, and pass the second vertical rod through the second vertical slot of the second sliding buckle. The second vertical rod slides up and down in the second sliding buckle, and the second sliding buckle slides left and right along the main rod, so that after the first horizontal rod is mounted on the top of the rectangular weir, the second sliding buckle is fixed.

[0036] S4. Attach two stainless steel ring pieces to the front and back sides of the mesh opening edge of the filter screen respectively, and secure the mesh opening edge of the filter screen between the front side of the rectangular weir and the first support rod.

[0037] A fixing buckle is installed on the outer sleeve of the first support rod, and the fixing holes of the fixing buckle are connected and fixed to the corresponding annular holes of the stainless steel annular plate.

[0038] This invention provides a microplastic collection device suitable for rectangular weirs, which has the following advantages:

[0039] The device includes: a rectangular weir, a filter screen, and a support frame; the support frame includes a main rod, a first clamping member, and a first supporting rod; the first clamping member includes a first horizontal bar, a first vertical bar, and a second vertical bar, the first and second vertical bars being parallel, and the first horizontal bar being vertically connected above the first and second vertical bars; the first horizontal bar, the first vertical bar, and the second vertical bar are respectively located at the top, rear, and front sides of the rectangular weir, jointly clamping the rectangular weir; the main rod and the first supporting rod are both located at the front side of the rectangular weir, the first supporting rod and the second vertical bar being parallel, and both the first supporting rod and the second vertical bar being vertically connected to the main rod; the filter screen is located at the weir opening of the rectangular weir, the mesh opening of the filter screen is larger than the weir opening, and the edge of the mesh opening is wedged between the front side of the rectangular weir and the first supporting rod.

[0040] In this invention, the first horizontal bar, the first vertical bar, and the second vertical bar are located at the top, rear, and front sides of the rectangular weir, respectively, to clamp the rectangular weir. The front side of the rectangular weir faces the water flow. The first support bar, which is parallel to the second vertical bar, is aligned with the side of the weir opening on the front side of the rectangular weir and inserted into the bottom soil of the rectangular weir. The main bar is aligned with the bottom surface of the weir opening on the front side of the rectangular weir. The second vertical bar and the first support bar are both vertically connected to the main bar to form a support.

[0041] The filter screen is placed at the mouth of the rectangular weir, with the edge of the screen wedged between the front side of the weir and the first support rod. The bracket secures the screen to the weir. When using this collection device to collect microplastics from the water flow at the weir, they are less likely to be washed away by the strong current. Because the screen opening is larger than the weir opening, it can effectively intercept and collect microplastics at the weir mouth. Attached Figure Description

[0042] 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.

[0043] Figure 1 This is a structural diagram of the microplastic collection device suitable for rectangular weirs according to an embodiment of the present invention;

[0044] Figure 2 This is a structural diagram of the first adjusting buckle according to an embodiment of the present invention;

[0045] Figure 3 This is a structural diagram of the second adjusting buckle according to an embodiment of the present invention;

[0046] Figure 4 This is a structural diagram of the first sliding buckle according to an embodiment of the present invention;

[0047] Figure 5 This is a structural diagram of the second sliding buckle according to an embodiment of the present invention;

[0048] Figure 6 This is a structural diagram of the fixing buckle described in an embodiment of the present invention;

[0049] Figure 7 This is a structural diagram of the stainless steel ring sheet described in an embodiment of the present invention;

[0050] Figure 8 This is a structural diagram of the filter screen described in an embodiment of the present invention;

[0051] In the diagram: 1. Filter screen; 2. Mesh opening; 3. Stainless steel circular ring; 31. Circular ring hole; 4. Fixing buckle; 41. Fixing hole; 5. Bracket; 6. Main rod; 7. First support rod; 71. Tip; 8. First clamping component; 81. First horizontal bar; 82. First vertical bar; 83. Second vertical bar; 9. First sliding buckle; 91. First vertical slot; 92. First horizontal slot; 10. Second sliding buckle; 101. Second vertical slot; 102. Second horizontal slot; 11. First adjusting buckle; 12. Second adjusting buckle; 13. Second support rod; 14. Second clamping component; 141. Second horizontal bar; 142. Fourth vertical bar; 15. Fixing screw; 16. Rectangular weir. Detailed Implementation

[0052] 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.

[0053] 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.

[0054] 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.

[0055] In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] 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.

[0057] This invention provides a microplastic collection device and its usage method suitable for rectangular weirs, which solves the technical problem that current methods for collecting microplastics from water flow at rectangular weirs involve placing the collection device directly in the water flow, making it easy for it to be washed away by the strong current.

[0058] Please see Figure 1 An embodiment of the present invention provides a microplastic collection device suitable for rectangular weirs, comprising: a rectangular weir 16, a filter screen 1, and a support 5;

[0059] The bracket 5 includes a main rod 6, a first clamping member 8, and a first support rod 7;

[0060] The first clamping member 8 includes a first horizontal bar 81, a first vertical bar 82, and a second vertical bar 83. The first vertical bar 82 and the second vertical bar 83 are parallel, and the first horizontal bar 81 is vertically connected above the first vertical bar 82 and the second vertical bar 83.

[0061] The first horizontal bar 81, the first vertical bar 82, and the second vertical bar 83 are located at the top, rear, and front sides of the rectangular weir 16, respectively, and together clamp the rectangular weir 16.

[0062] The main rod 6 and the first support rod 7 are both located on the front side of the rectangular weir 16. The first support rod 7 and the second vertical rod 83 are parallel, and the first support rod 7 and the second vertical rod 83 are both vertically connected to the main rod.

[0063] The filter screen 1 is located at the mouth of the rectangular weir 16. The mesh opening 2 of the filter screen 1 is larger than the mouth of the weir, and the edge of the mesh opening 2 is wedged between the front side of the rectangular weir 16 and the first support rod 7.

[0064] It should be noted that the first horizontal bar 81, the first vertical bar 82, and the second vertical bar 83 are located at the top, rear, and front of the rectangular weir 16, respectively, and together they clamp the rectangular weir 16. The front of the rectangular weir 16 faces the water flow. The first support bar 7, which is parallel to the second vertical bar 83, is aligned with the side of the weir opening on the front side of the rectangular weir 16 and inserted into the bottom soil of the rectangular weir 16. The main bar 6 is aligned with the bottom surface of the weir opening on the front side of the rectangular weir 16. The second vertical bar 83 and the first support bar 7 are both vertically connected to the main bar 6 to form the support 5.

[0065] The filter screen 1 is placed at the mouth of the rectangular weir 16. The edge of the mesh opening 2 of the filter screen 1 is secured between the front side of the rectangular weir 16 and the first support rod 7. The bracket 5 can fix the filter screen 1 to the rectangular weir 16. When using this collection device to collect microplastics from the water flow at the rectangular weir 16, they are not easily washed away by the strong water flow. Because the mesh opening 2 of the filter screen 1 is larger than the weir mouth, it can effectively intercept and collect microplastics at the weir mouth.

[0066] Please see Figure 1 , 4 In a more specific embodiment, the bracket 5 further includes a first sliding latch 9;

[0067] The first sliding buckle 9 has a first vertical slot 91 that passes through the upper and lower sides, and the first sliding buckle 9 has a first horizontal slot 92 that passes through the left and right sides.

[0068] The first support rod 7 passes through the first vertical slot 91, and the main rod 6 passes through the first horizontal slot 92.

[0069] It should be noted that when the first support rod 7 passes through the first vertical slot 91 of the first sliding buckle 9, the first sliding buckle 9 can slide up and down along the first support rod 7. It can be fixed by screwing the fixing screw 15 into the horizontally opened hole (not shown in the figure) on the first sliding buckle 9.

[0070] The main rod 6 passes through the first horizontal slot 92 of the first sliding buckle 9. The first sliding buckle 9 can slide left and right along the main rod 6. It can be fixed by screwing the fixing screw 15 into the vertical hole (not shown in the figure) on the first sliding buckle 9.

[0071] The thickness of the fixing screw 15 can be adjusted according to actual needs;

[0072] Since the first support rod 7 needs to be aligned with the side of the weir opening on the front side of the rectangular weir 16, and the main rod 6 needs to be aligned with the bottom surface of the weir opening on the front side of the rectangular weir 16, when encountering weir openings of different sizes and specifications, the position of the first sliding buckle 9 on the main rod 6 and the first support rod 7 can be adjusted to adapt them.

[0073] Please see Figure 1 , 5In a more specific embodiment, the bracket 5 further includes a second sliding latch 10;

[0074] The second sliding buckle 10 has a second vertical slot 101 that passes through the upper and lower sides, and the second sliding buckle 10 has a second horizontal slot 102 that passes through the left and right sides.

[0075] The second vertical rod 83 passes through the second vertical slot 101, and the main rod 6 passes through the second horizontal slot 102.

[0076] It should be noted that when the second vertical rod 83 passes through the second vertical slot 101 of the second sliding buckle 10, the second vertical rod 83 can slide up and down along the second sliding buckle 10. It can be fixed by screwing the fixing screw 15 into the horizontally opened hole (not shown in the figure) on the second sliding buckle 10.

[0077] The main rod 6 passes through the second horizontal slot 102 of the second sliding buckle 10. The second sliding buckle 10 can slide left and right along the main rod 6 and can be fixed by screwing the fixing screw 15 into the vertical hole (not shown in the figure) on the second sliding buckle 10.

[0078] Please see Figure 1 , 2 In a more specific embodiment, the bracket 5 further includes a first adjusting latch 11;

[0079] The first adjusting buckle 11 is fixedly sleeved downward at the connection between the first horizontal bar 81 and the first vertical bar 82.

[0080] It should be noted that the first adjusting buckle 11 is fitted downward at the connection between the first horizontal bar 81 and the first vertical bar 82 and is fixed by the fixing screw 15. Thus, after adjusting the connection position of the first horizontal bar 81 and the first vertical bar 82, it can be fixed by the first adjusting buckle 11 to adapt to rectangular weirs 16 of different thicknesses.

[0081] Please see Figure 1 , 3 In a more specific embodiment, the bracket 5 further includes a second adjusting latch 12;

[0082] The second adjusting buckle 12 is fixedly sleeved downward at the connection between the first horizontal bar 81 and the second vertical bar 83.

[0083] It should be noted that the second adjusting buckle 12 is fitted downward at the connection between the first horizontal bar 81 and the second vertical bar 83 and is fixed by the fixing screw 15. Thus, after adjusting the connection position of the first horizontal bar 81 and the second vertical bar 83, it can be fixed by the second adjusting buckle 12 to adapt to rectangular weirs 16 of different thicknesses.

[0084] Please see Figure 7 ,8 In a more specific embodiment, the filter screen 1 is provided with two stainless steel circular rings 3, which are respectively attached to the front and back sides of the edge of the mesh opening 2 of the filter screen 1.

[0085] The stainless steel ring 3 extends outward to form a ring hole 31, and the ring holes 31 of the two stainless steel rings 3 correspond to each other.

[0086] The first support rod 7 is fitted with a fixing buckle 4, and the fixing buckle 4 has a fixing hole 41, which is connected to the annular hole 31.

[0087] It should be noted that the filter screen 1 is provided with two stainless steel circular plates 3. The two stainless steel circular plates 3 are respectively attached to the front and back sides of the edge of the mesh opening 2 of the filter screen 1, which can strengthen the edge of the mesh opening 2 of the filter screen 1.

[0088] Stainless steel ring plate 3 extends outward to form ring hole 31. The ring holes 31 of the two stainless steel ring plates 3 correspond to each other. The first support rod 7 is fitted with a fixing buckle 4. The fixing buckle 4 can slide up and down along the first support rod 7. The fixing buckle 4 has a fixing hole 41. By sliding the fixing buckle 4, the fixing hole 41 and the ring hole 31 correspond to each other and are connected by fixing screw 15 (the fixing hole 41 and the ring hole 31 are coaxial), so that the filter screen 1 can be installed on the bracket 5 more securely.

[0089] When filter 1 is damaged or collection stops, filter 1 can be removed and replaced.

[0090] Please see Figure 1 , 8 In a more specific embodiment, filter 1 is a funnel-shaped filter.

[0091] It should be noted that filter screen 1 is a funnel-shaped filter screen. The funnel-shaped filter screen can increase the contact area with the water flow and is not easily completely blocked by large debris in the water flow. Filter screen 1 is made of stainless steel.

[0092] Filter screen 1 is a flexible, high-mesh, funnel-shaped stainless steel filter screen. The flexibility of filter screen 1 ensures that it does not change the water flow characteristics when it is placed at the weir.

[0093] Please see Figure 1 In a more specific embodiment, the bottom end of the first support rod 7 is a pointed tip 71.

[0094] It should be noted that, since the first support rod 7 needs to be inserted into the bottom soil of the rectangular dam, the bottom end of the first support rod 7 is set as a pointed tip 71, which makes it easier to insert into the bottom soil and fix it.

[0095] Please see Figure 1In a more specific embodiment, the bracket 5 further includes a second clamping member 14 and a second support rod 13;

[0096] The second clamping member 14 is parallel to the first clamping member 8;

[0097] The second clamping member 14 includes a second horizontal bar 141, a third vertical bar (not shown in the figure) and a fourth vertical bar 142. The third vertical bar and the fourth vertical bar 142 are parallel, and the second horizontal bar 141 is vertically connected above the third vertical bar and the fourth vertical bar 142.

[0098] The second horizontal bar 141 is located at the top of the rectangular weir 16, and the third vertical bar and the fourth vertical bar 142 are located at the rear and front sides of the rectangular weir 16, respectively, clamping the rectangular weir 16.

[0099] The second support rod 13 is located on the front side of the rectangular weir 16. The second support rod 13 and the fourth vertical rod 142 are parallel, and both the second support rod 13 and the fourth vertical rod 142 are vertically connected to the main rod 6.

[0100] The first support rod 7 and the second support rod 13 are located between the second vertical rod 83 and the fourth vertical rod 143;

[0101] The edge of the mesh port 2 is wedged between the front side of the rectangular weir 16 and the second support rod 13.

[0102] It should be noted that by adding a second clamping member 14 and a second support rod 13, the second clamping member 14 clamps the rectangular weir 16, so that the first clamping member 8 and the second clamping member 14 jointly clamp the rectangular weir 16, which can improve the stability of the support 5 erected on the rectangular weir 16.

[0103] The second support rod 13 is vertically connected to the main rod 6. The first support rod 7 and the second support rod 13 together clamp the edge of the mesh opening 2 of the filter screen 1 on the front side of the rectangular weir 16, thereby improving the stability of the support 5 in fixing the filter screen 1.

[0104] The first support rod 7 and the second support rod 13 are arranged symmetrically on the left and right, and the first clamping member 8 and the second clamping member 14 are arranged symmetrically on the left and right.

[0105] Please see Figure 1 In another more specific embodiment, the connection between the second horizontal bar 141 and the third vertical bar is also provided with a downwardly fitted first adjusting buckle for fixation, and the connection between the second horizontal bar 141 and the fourth vertical bar 142 is also provided with a downwardly fitted second adjusting buckle for fixation;

[0106] The second support rod 13 passes through the first vertical slot of another first sliding buckle, and the main rod 6 passes through the first horizontal slot of the first sliding buckle through which the second support rod 13 passes.

[0107] The fourth vertical rod 142 passes through the second vertical slot of another second sliding buckle, and the main rod 6 passes through the second horizontal slot of the second sliding buckle through which the fourth vertical rod 142 passes;

[0108] The second support rod 13 is also fitted with a fixing buckle. Multiple circular holes 3 extend outward from the stainless steel circular plate 3 and are connected to the fixing holes of the fixing buckle on the second support rod 13.

[0109] The bottom end of the second support rod 13 is also a pointed tip.

[0110] Please see Figure 1 , 7 In another more specific embodiment, the first support rod 7 is fitted with two fixing buckles, the second support rod 13 is fitted with two fixing buckles, and the stainless steel ring plate 3 has four ring holes 31, which are distributed at the four equal division points of the stainless steel ring plate 3.

[0111] In another more specific embodiment, the top surface of the main rod 6 is marked with graduations, the front surfaces of the first support rod 7 and the second support rod 13 are marked with graduations, and the top surfaces of the first crossbar 81 and the second crossbar 141 are marked with graduations. The dimensions of the rectangular weir 16 can be measured according to the graduations, and water level data can also be measured to calculate flow rate changes.

[0112] In another more specific embodiment, the first horizontal bar 81, the first vertical bar 82, the second vertical bar 83, the second horizontal bar 141, the third vertical bar, the fourth vertical bar 142, the main bar 6, the first support bar 7, and the second support bar 13 are all made of stainless steel, which is not easily corroded in water.

[0113] In another more specific embodiment, the first adjusting latch 11 and the second adjusting latch 12 are T-shaped;

[0114] The funnel-shaped filter screen 1 has a total length of 300mm, the mesh opening is a circle with a diameter of 320mm, the edge of the mesh opening 2 is thickened and protruded by 5mm, the stainless steel circular ring 3 has a diameter of 300mm, and the diameter of the circular hole 31 is 10mm.

[0115] The inner diameter of the fixing buckle 4 is 60mm*60mm, the outer diameter is 80mm*80mm, the slot through which the fixing screw passes is 10mm, and the length of the fixing screw 15 is 50mm.

[0116] The main rod 6 has dimensions of 50mm*50mm*500mm, the first support rod 7 and the second support rod 13 have dimensions of 50mm*50mm*800mm, and the tip has dimensions of 50mm*50mm*100mm.

[0117] The dimensions of the second vertical bar 83 are 50mm*50mm*300mm, the dimensions of the first horizontal bar 81 are 50mm*50mm*200mm, and the dimensions of the first vertical bar 82 are 50mm*50mm*200mm.

[0118] The inner diameter of the first adjusting buckle 11, the second adjusting buckle 12, the first sliding buckle 9, and the second sliding buckle 10 is 60mm*60mm, and the outer diameter is 80mm*80mm. The length of the matching fixing screws is 50mm.

[0119] Please see Figure 1-8 An embodiment of the present invention provides a method of using a microplastic collection device suitable for rectangular weirs, comprising:

[0120] S1. Pass the main rod 6 through the first horizontal slot 92 of the first sliding buckle 9, pass the first support rod 7 through the first vertical slot 91 of the first sliding buckle 9, insert the tip 71 of the first support rod 7 into the bottom soil of the rectangular weir 16, adjust the position of the first sliding buckle 9 on the first support rod 7 so that the bottom surface of the main rod 6 and the front side of the weir opening of the rectangular weir 16 are aligned, adjust the position of the first sliding buckle 9 on the main rod 6 so that the first support rod 7 and the side of the front side of the weir opening of the rectangular weir 16 are aligned, and fix the position of the first sliding buckle 9.

[0121] S2. Place the first vertical rod 82 and the second vertical rod 83 of the first clamping member 8 on the rear and front sides of the rectangular weir 16 to clamp the rectangular weir 16. Place the first horizontal rod 81 above the first vertical rod 82 and the second vertical rod 83. Use the first adjusting buckle 11 to fix it by sliding it downwards at the connection between the first horizontal rod 81 and the first vertical rod 82. Use the second adjusting buckle 12 to fix it by sliding it downwards at the connection between the first horizontal rod 81 and the second vertical rod 83.

[0122] S3. Pass the main rod 6 through the second horizontal slot 101 of the second sliding buckle 10, and pass the second vertical rod 83 through the second vertical slot 102 of the second sliding buckle 10. The second vertical rod 83 slides up and down in the second sliding buckle 10, and the second sliding buckle 10 slides left and right along the main rod 6, so that after the first horizontal rod 81 is mounted on the top of the rectangular weir 16, the second sliding buckle 10 is fixed.

[0123] S4. Attach two stainless steel circular rings 3 to the front and back sides of the mesh opening 2 of the filter screen 1 respectively, and secure the edge of the mesh opening 2 of the filter screen 1 between the front side of the rectangular weir 16 and the first support rod 7.

[0124] A fixing buckle 4 is installed on the outer sleeve of the first support rod 7, and the fixing hole 41 of the fixing buckle 4 is connected and fixed to the corresponding annular hole 31 of the stainless steel annular piece 3.

[0125] It should be noted that the installation of the second clamping member 14 is the same as that of the first clamping member 8, and the installation of the second support rod 13 is the same as that of the first support rod 7.

[0126] The components of this invention can be disassembled and assembled, resulting in a simple structure, ingenious design, low cost, and ease of carrying after disassembly.

[0127] 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 rectangular weir, characterized in that, include: Rectangular weir, filter screen, and support frame; The bracket includes a main rod, a first clamping member, and a first support rod; The first clamping member includes a first horizontal bar, a first vertical bar, and a second vertical bar. The first vertical bar and the second vertical bar are parallel, and the first horizontal bar is vertically connected above the first vertical bar and the second vertical bar. The first horizontal bar, the first vertical bar, and the second vertical bar are located at the top, rear, and front sides of the rectangular weir, respectively, and together clamp the rectangular weir. The main rod and the first support rod are both located on the front side of the rectangular weir. The first support rod and the second vertical rod are parallel, and the first support rod and the second vertical rod are both perpendicularly connected to the main rod. The filter screen is located at the mouth of the rectangular weir, and the opening of the filter screen is larger than the mouth of the weir. The edge of the opening is wedged between the front side of the rectangular weir and the first support rod.

2. The microplastics collection device suitable for use with a rectangular weir according to claim 1, wherein, The bracket also includes a first sliding buckle; The first sliding buckle has a first vertical slot that extends through the upper and lower sides, and the first sliding buckle has a first horizontal slot that extends through the left and right sides. The first support rod passes through the first vertical slot, and the main rod passes through the first horizontal slot.

3. The microplastics collection device suitable for use with a rectangular weir according to claim 2, wherein, The bracket also includes a second sliding buckle; The second sliding buckle has a second vertical slot that extends through the upper and lower sides, and the second sliding buckle has a second horizontal slot that extends through the left and right sides; The second vertical rod passes through the second vertical slot, and the main rod passes through the second horizontal slot.

4. The microplastics collection device suitable for use with a rectangular weir according to claim 3, wherein, The bracket also includes a first adjusting buckle; The first adjusting buckle is fixedly sleeved downward at the connection between the first horizontal bar and the first vertical bar.

5. The microplastics collection device suitable for use with a rectangular weir according to claim 4, wherein, The bracket also includes a second adjusting buckle; The second adjusting buckle is fixedly sleeved downward at the connection between the first horizontal bar and the second vertical bar.

6. The microplastics collection device suitable for use with a rectangular weir according to claim 5, wherein, The filter screen is provided with two stainless steel circular plates, which are respectively attached to the front and back sides of the mesh opening edge of the filter screen. The stainless steel ring extends outward to form annular holes, and the annular holes of the two stainless steel rings correspond to each other. The first support rod is fitted with a fixing buckle, and the fixing buckle has a fixing hole, which is connected to the annular hole.

7. The microplastics collection device suitable for use with a rectangular weir according to claim 1, wherein, The filter screen is a funnel-shaped filter screen.

8. The microplastics collection device suitable for use with a rectangular weir according to claim 1, wherein, The bottom end of the first support rod is a pointed tip.

9. The microplastics collection device suitable for use with a rectangular weir according to claim 1, wherein, The bracket also includes a second clamping member and a second support rod; The second clamping member is parallel to the first clamping member; The second clamping member includes a second horizontal bar, a third vertical bar, and a fourth vertical bar, wherein the third vertical bar and the fourth vertical bar are parallel, and the second horizontal bar is vertically connected above the third vertical bar and the fourth vertical bar; The second horizontal bar is located at the top of the rectangular weir, and the third and fourth vertical bars are located at the rear and front sides of the rectangular weir, respectively, clamping the rectangular weir. The second support rod is located on the front side of the rectangular weir. The second support rod is parallel to the fourth vertical rod, and both the second support rod and the fourth vertical rod are perpendicularly connected to the main rod. The first support rod and the second support rod are located between the second vertical rod and the fourth vertical rod; The edge of the mesh opening is wedged between the front side of the rectangular weir and the second support rod.

10. A method of using a microplastic collection device suitable for a rectangular weir, applied to the microplastic collection device suitable for a rectangular weir according to claim 6, characterized in that, include: S1. Pass the main rod through the first horizontal slot of the first sliding buckle, pass the first support rod through the first vertical slot of the first sliding buckle, insert the tip of the first support rod into the bottom soil of the rectangular weir, adjust the position of the first sliding buckle on the first support rod so that the bottom surface of the main rod and the front side of the weir mouth of the rectangular weir are aligned, adjust the position of the first sliding buckle on the main rod so that the first support rod and the side of the weir mouth of the rectangular weir are aligned, and fix the position of the first sliding buckle. S2. Place the first vertical rod and the second vertical rod of the first clamping member on the rear and front sides of the rectangular weir to clamp the rectangular weir. Place the first horizontal rod above the first vertical rod and the second vertical rod. Use the first adjusting buckle to fix it downwards at the connection between the first horizontal rod and the first vertical rod. Use the second adjusting buckle to fix it downwards at the connection between the first horizontal rod and the second vertical rod. S3. Pass the main rod through the second horizontal slot of the second sliding buckle, and pass the second vertical rod through the second vertical slot of the second sliding buckle. The second vertical rod slides up and down in the second sliding buckle, and the second sliding buckle slides left and right along the main rod, so that after the first horizontal rod is mounted on the top of the rectangular weir, the second sliding buckle is fixed. S4. Attach two stainless steel circular rings to the front and back sides of the mesh opening edge of the filter screen, respectively, and secure the mesh opening edge of the filter screen between the front side of the rectangular weir and the first support rod. A fixing buckle is installed on the outer sleeve of the first support rod, and the fixing holes of the fixing buckle and the annular holes of the stainless steel annular plate are connected and fixed accordingly.

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