Microplastic collection device for vehicle tires

Abstract

This invention provides a microplastic collection device for vehicle tires, belonging to the field of tire microplastic collection technology. It includes a collection box, an air intake assembly, and an air inlet pipe. The collection box is positioned on the radial outer edge of the tire. The collection box contains a cavity for holding microplastics. An air inlet communicating with the cavity is located on the collection box, facing the outer peripheral wall of the tire. The cavity contains a collection liquid. The air intake assembly is mounted on the collection box. The suction end of the air intake assembly passes through the collection box and extends into the cavity, positioned above the surface of the collection liquid. One end of the air inlet pipe communicates with the air inlet, and the other end extends downwards into the collection liquid. The air intake assembly is used to draw microplastic particles generated by the tire into the cavity through the air inlet and the air inlet pipe. The microplastic collection device for vehicle tires provided by this invention is unaffected by metal debris mixed in with the microplastic particles or by severe rain and snow, exhibiting good collection performance.

Description

Technical Field

[0001] This invention belongs to the field of tire microplastic collection technology, and more specifically, relates to a microplastic collection device for vehicle tires. Background Technology

[0002] Microplastics are a new type of pollutant, and in recent years, the problem of microplastic pollution has received widespread attention from international and national governments and researchers. Among them, tire microplastics generated during vehicle operation are the second largest source of microplastic emissions, mainly produced by friction with the ground when the vehicle brakes, accelerates, or makes sharp turns.

[0003] In existing technologies, electrostatic adsorption is often used to collect microplastics generated by tire friction in order to improve the microplastic pollution problem. However, during the process of tire friction with the ground, metal debris from the road is also picked up. The presence of metal debris mixed in with microplastics reduces the effectiveness of electrostatic adsorption. Moreover, in rainy or snowy weather, microplastics are difficult to be electrostatically adsorbed. Summary of the Invention

[0004] The purpose of this invention is to provide a microplastic collection device for vehicle tires, which aims to solve the technical problem that existing microplastic collection devices are easily affected by metal debris mixed in with microplastic particles and severe rain and snow conditions, resulting in poor collection performance.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a microplastic collection device for vehicle tires, comprising:

[0006] A collection box is provided for placement on the radial outer edge of a wheel tire; the collection box has an internal cavity for containing microplastics; the cavity contains a collection liquid; the collection box has an air inlet communicating with the cavity, and the air inlet faces the outer peripheral wall of the wheel tire.

[0007] An air intake assembly is disposed on the collection box; the air intake end of the air intake assembly passes through the collection box and extends into the receiving cavity, and is positioned above the liquid surface of the collected liquid; and

[0008] An air inlet pipe has one end connected to the air inlet and the other end extending downward into the collection liquid;

[0009] The air intake assembly is used to draw microplastic particles generated by the wheel tires into the collection liquid through the air inlet and the air intake pipe.

[0010] In one possible implementation, the air inlet is covered with a first filter screen, which is used to intercept pollutants outside the collection box.

[0011] In one possible implementation, the intake pipe includes:

[0012] The first connecting pipe has its upper end covered at the air inlet; the cross-sectional dimensions of the first connecting pipe gradually decrease from the air inlet downwards.

[0013] The second connecting tube is connected to the lower end of the first connecting tube; and one end of the second connecting tube extends downward into the collecting liquid.

[0014] In some embodiments, the receiving cavity is provided with a limiting component placed on the liquid surface of the collected liquid, one end of the limiting component is hinged to the lower end of the air inlet, and the other end extends into the receiving cavity;

[0015] The upper end of the air inlet pipe covers the outside of the limiting component; and when the air intake component is working, the extension end of the limiting component swings downward so that the microplastic particles enter the collection liquid.

[0016] For example, the limiting component is a rubber valve body connected to the inner wall of the collection box, and the inside of the rubber valve body is filled with a gaseous medium for making the rubber valve body float on the surface of the collected liquid.

[0017] For example, the limiting component includes:

[0018] A limiting plate, one end of which is hinged to the inner wall of the collection tank, and the other end extends above the liquid surface of the collected liquid;

[0019] An elastic element has one end connected to the lower plate surface of the limiting assembly and the other end fixed to the inner wall of the collection tank to support the limiting assembly on the surface of the collected liquid.

[0020] In one possible implementation, the lower end of the collection box is provided with a metal valve that communicates with the receiving cavity.

[0021] For example, the outlet end of the metal valve is detachably connected to a second filter screen.

[0022] In one possible implementation, the inhalation assembly includes:

[0023] An air pump is installed on the top surface of the collection box;

[0024] A vent pipe, one end of which is connected to the air pump, and the other end which extends downwards into the collection box and communicates with the receiving cavity to form the air extraction end; and

[0025] The control valve is located on the vent pipe and outside the collection box.

[0026] In one possible implementation, the collection box is provided with multiple sets of connecting rods spaced apart around the center of the wheel tire, the connecting rods extending radially along the wheel tire and connected to the wheel.

[0027] Compared with the prior art, the solution shown in this application embodiment can suck microplastics generated by wheels and tires into the collection chamber of the collection box through the suction component. Specifically, under the suction of the suction component, microplastic particles enter the air inlet pipe from the air inlet and then enter the collection liquid through the air inlet pipe. Furthermore, the suction of the suction component is generated by air pressure, and the suction directly acts on the microplastic particles, without being affected by metal debris or bad weather, thus having a better collection effect. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, 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.

[0029] Figure 1 A schematic diagram of the microplastic collection device for vehicle tires provided in an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the limiting component provided in Embodiment 1 of the present invention;

[0031] Figure 3 This is a schematic diagram of the limiting component provided in Embodiment 2 of the present invention.

[0032] In the picture:

[0033] 1. Collection box; 11. Receiving cavity; 12. Air inlet; 13. Collection liquid; 131. Liquid level; 14. First filter screen;

[0034] 2. Suction assembly; 21. Air pump; 22. Vent pipe; 23. Control valve;

[0035] 3. Intake pipe; 31. First connecting pipe; 32. Second connecting pipe;

[0036] 4. Limiting assembly; 41. Rubber valve body; 42. Limiting plate; 43. Elastic element;

[0037] 5. Metal valves;

[0038] 6. Second filter screen;

[0039] 7. Connecting rod;

[0040] 8. Wheels and tires. Detailed Implementation

[0041] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0042] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on that other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0043] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a number" means two or more, unless otherwise explicitly specified.

[0044] Example 1

[0045] Please refer to the following: Figure 1 and Figure 2 The present invention will now describe the microplastic collection device for vehicle tires. The microplastic collection device for vehicle tires includes a collection box 1, an air intake assembly 2, and an air inlet pipe 3. The collection box 1 is disposed on the radial outer edge of the tire 8. The collection box 1 has a receiving cavity 11 for containing microplastics. The receiving cavity 11 contains a collection liquid 13. The collection box 1 has an air inlet 12 communicating with the receiving cavity 11, and the air inlet 12 faces the outer peripheral wall of the tire 8. The air intake assembly 2 is disposed on the collection box 1. The suction end of the air intake assembly 2 passes through the collection box 1 and extends into the receiving cavity 11, and is positioned above the liquid surface 131 of the collection liquid 13. One end of the air inlet pipe 3 communicates with the air inlet 12, and the other end extends downward into the collection liquid 13.

[0046] The suction component 2 is used to draw microplastic particles generated by the wheel and tire 8 into the collection liquid 13 through the air inlet 12 and the air inlet pipe 3.

[0047] It should be noted that the mass of the microplastics generated on the wheel tire 8 is relatively small. Therefore, the suction force used by the suction component 2 to extract the microplastics generated on the wheel tire 8 is also relatively small and will not affect the moving wheel.

[0048] It should be understood that by setting up the collection liquid 13, on the one hand, it can facilitate centralized collection and treatment, and on the other hand, it can also prevent pollutants from clogging the air pipe 22 of the air intake component 2 with the airflow.

[0049] The microplastic collection device for vehicle tires provided by this invention, compared with the prior art, can suck the microplastics generated by the wheel tire 8 into the receiving cavity 11 of the collection box 1 through the suction component 2. Specifically, under the suction of the suction component 2, the microplastic particles enter the air intake pipe 3 from the air inlet 12 and then enter the collection liquid 13 through the air intake pipe 3. Furthermore, the suction of the suction component 2 is generated by air pressure, and the suction directly acts on the microplastic particles, which is not affected by metal debris and bad weather, and has a better collection effect.

[0050] Please see Figure 1 In some possible embodiments, the air inlet 12 is covered with a first filter screen 14, which is used to intercept pollutants outside the collection box 1.

[0051] It should be understood that when the wheel and tire 8 are moving, they will generate other blocky impurities that form pollutants. By setting the first filter screen 14, the pollutants can be intercepted outside the collection box 1.

[0052] Please see Figure 1 In some embodiments, the air inlet pipe 3 includes a first connecting pipe 31 and a second connecting pipe 32; the upper end of the first connecting pipe 31 covers the air inlet 12; the cross-sectional size of the first connecting pipe 31 gradually decreases downward from the air inlet 12; the second connecting pipe 32 is connected to the lower end of the first connecting pipe 31; and one end of the second connecting pipe 32 extends downward into the collection liquid 13.

[0053] Optionally, the first connecting pipe 31 and the second connecting pipe 32 are integrally formed tubular structures.

[0054] Optionally, the first connecting pipe 31 and the second connecting pipe 32 are connected together by a pipe fitting.

[0055] By gradually reducing the cross-sectional size of the first connecting pipe 31 downwards from the air inlet 12 to connect to the second connecting pipe 32 with a smaller opening, the accommodating cavity 11 with a reduced cross-sectional size is adapted, and the microplastic particles are allowed to enter the collection liquid 13 at the lower end.

[0056] Furthermore, the lower end of the air inlet pipe 3 can be limited in the collection liquid 13 by a limiting rod; specifically, one end of the limiting rod is connected to the air inlet pipe 3, and the other end is placed below the liquid surface 131 of the collection liquid 13 and connected to the inner wall of the collection box 1.

[0057] Please see Figure 1 In some embodiments, the receiving cavity 11 is provided with a limiting component 4 placed on the liquid surface 131 of the collecting liquid 13. One end of the limiting component 4 is hinged to the lower end of the air inlet 12, and the other end extends into the receiving cavity 11. The upper end of the air inlet pipe 3 covers the outside of the limiting component 4. When the air intake component 2 is working, the extended end of the limiting component 4 swings downward to allow the microplastic particles to enter the collecting liquid 13.

[0058] The limiting component 4 is used to intercept the collected liquid 13 in the receiving cavity 11 to prevent the collected liquid 13 from overflowing from the air inlet 12.

[0059] Please see Figure 2 For example, the limiting component 4 is a rubber valve body 41 connected to the inner wall of the collection box 1, and the inside of the rubber valve body 41 is filled with a gaseous medium for making the rubber valve body 41 float on the liquid surface 131 of the collection liquid 13.

[0060] It should be understood that one end of the rubber valve body 41 is connected to the lower end of the air inlet 12, and the rubber valve body 41 floats on the liquid surface 131 of the collected liquid 13, which can prevent the collected liquid 13 from overflowing from the air inlet 12 into the receiving cavity 11. It should be noted that the specific working principle and structure of the rubber valve body 41 are existing technologies and will not be described in detail here.

[0061] Please see Figure 1 In some possible embodiments, the lower end of the collection box 1 is provided with a metal valve 5 that communicates with the receiving cavity 11.

[0062] By setting a metal valve 5, the mixture of collected liquid 13 containing microplastic particles can be discharged through the metal valve 5 after the collected liquid 13 has been used for a period of time.

[0063] Please see Figure 1 For example, the outlet end of the metal valve 5 is detachably connected to a second filter screen 6.

[0064] By setting a second filter screen 6, microplastics in the mixture of collected liquid 13 are filtered and collected when the mixture is discharged.

[0065] Please see Figure 1In some possible embodiments, the air intake assembly 2 includes an air pump 21, an air vent 22, and a control valve 23; the air pump 21 is located on the top surface of the collection box 1; one end of the air vent 22 is connected to the air pump 21, and the other end passes downward through the collection box 1 and communicates with the receiving cavity 11 to form the air intake end of the air intake assembly 2; the control valve 23 is located on the air vent 22 and is placed outside the collection box 1.

[0066] It should be understood that the air pump 21 is used to draw microplastics into the receiving cavity 11, and the structure and working principle of the air pump 21 are both existing technologies; the control valve 23 is used to control the airflow in the air vent 22.

[0067] Furthermore, one end of the vent tube 22 that extends into the receiving cavity 11 is positioned above the liquid surface 131 of the collected liquid 13.

[0068] Optionally, the vacuum pump 21 is fixed on the vehicle frame and connected to the receiving cavity 11 of the collection box 1 through the vent pipe 22; the control valve 23 is located on the vent pipe 22 and its position on the vent pipe 22 can be determined according to actual needs.

[0069] Please see Figure 1 In some possible embodiments, the collection box 1 is provided with multiple sets of connecting rods 7 spaced apart around the center of the wheel tire 8. The connecting rods 7 extend radially along the wheel tire 8 and are connected to the wheel.

[0070] By setting a connecting rod 7 to fix the position of the collection box 1, the collection box 1 is always supported on the radial outer edge of the wheel tire 8 when the wheel tire 8 rotates; specifically, the connecting rod 7 is connected to the steering knuckle of the wheel, and the specific structure of the wheel steering knuckle is the prior art.

[0071] Optionally, the collection box 1 can also be fixed to the vehicle frame. Specifically, the collection box 1 is welded and fixed to the vehicle frame, and the air inlet 12 of the collection box 1 is covered on the outer peripheral wall of the wheel tire 8.

[0072] Optionally, the first filter screen 14 is selected with a 16-mesh specification; the second filter screen 6 is selected with a 300-mesh specification.

[0073] Example 2

[0074] Please refer to the following: Figure 1 and Figure 2The microplastic collection device for vehicle tires provided by the present invention will now be described. The microplastic collection device for vehicle tires includes a collection box 1, an air intake assembly 2, and an air inlet pipe 3. The collection box 1 is disposed on the radial outer edge of the wheel tire 8. The collection box 1 has a receiving cavity 11 for containing microplastics. The receiving cavity 11 contains a collection liquid 13. The collection box 1 has an air inlet 12 communicating with the receiving cavity 11, and the air inlet 12 faces the outer peripheral wall of the wheel tire 8. The air intake assembly 2 is disposed on the collection box 1. The suction end of the air intake assembly 2 passes through the collection box 1 and extends into the receiving cavity 11, and is positioned above the liquid surface 131 of the collection liquid 13. One end of the air inlet pipe 3 is connected to the air inlet 12, and the other end extends downward into the collection liquid 13.

[0075] The suction component 2 is used to draw microplastic particles generated by the wheel and tire 8 into the collection liquid 13 through the air inlet 12 and the air inlet pipe 3.

[0076] It should be noted that the mass of the microplastics generated on the wheel tire 8 is relatively small. Therefore, the suction force used by the suction component 2 to extract the microplastics generated on the wheel tire 8 is also relatively small and will not affect the moving wheel.

[0077] It should be understood that by setting up the collection liquid 13, on the one hand, it can facilitate centralized collection and treatment, and on the other hand, it can also prevent pollutants from clogging the air pipe 22 of the air intake component 2 with the airflow.

[0078] The microplastic collection device for vehicle tires provided by this invention, compared with the prior art, can suck the microplastics generated by the wheel tire 8 into the receiving cavity 11 of the collection box 1 through the suction component 2. Specifically, under the suction of the suction component 2, the microplastic particles enter the air intake pipe 3 from the air inlet 12 and then enter the collection liquid 13 through the air intake pipe 3. Furthermore, the suction of the suction component 2 is generated by air pressure, and the suction directly acts on the microplastic particles, which is not affected by metal debris and bad weather, and has a better collection effect.

[0079] Please see Figure 1 In some possible embodiments, the air inlet 12 is covered with a first filter screen 14, which is used to intercept pollutants outside the collection box 1.

[0080] It should be understood that when the wheel and tire 8 are moving, they will generate other blocky impurities that form pollutants. By setting the first filter screen 14, the pollutants can be intercepted outside the collection box 1.

[0081] Please see Figure 1In some embodiments, the air inlet pipe 3 includes a first connecting pipe 31 and a second connecting pipe 32; the upper end of the first connecting pipe 31 covers the air inlet 12; the cross-sectional size of the first connecting pipe 31 gradually decreases downward from the air inlet 12; the second connecting pipe 32 is connected to the lower end of the first connecting pipe 31; and one end of the second connecting pipe 32 extends downward into the collection liquid 13.

[0082] Optionally, the first connecting pipe 31 and the second connecting pipe 32 are integrally formed tubular structures.

[0083] Optionally, the first connecting pipe 31 and the second connecting pipe 32 are connected together by a pipe fitting.

[0084] By gradually reducing the cross-sectional size of the first connecting pipe 31 downwards from the air inlet 12 to connect to the second connecting pipe 32 with a smaller opening, the accommodating cavity 11 with a reduced cross-sectional size is adapted, and the microplastic particles are allowed to enter the collection liquid 13 at the lower end.

[0085] Furthermore, the lower end of the air inlet pipe 3 can be limited in the collection liquid 13 by a limiting rod; specifically, one end of the limiting rod is connected to the air inlet pipe 3, and the other end is placed below the liquid surface 131 of the collection liquid 13 and connected to the inner wall of the collection box 1.

[0086] Please see Figure 1 In some embodiments, the receiving cavity 11 is provided with a limiting component 4 placed on the liquid surface 131 of the collecting liquid 13. One end of the limiting component 4 is hinged to the lower end of the air inlet 12, and the other end extends into the receiving cavity 11. The upper end of the air inlet pipe 3 covers the outside of the limiting component 4. When the air intake component 2 is working, the extended end of the limiting component 4 swings downward to allow the microplastic particles to enter the collecting liquid 13.

[0087] The limiting component 4 is used to intercept the collected liquid 13 in the receiving cavity 11 to prevent the collected liquid 13 from overflowing from the air inlet 12.

[0088] Please see Figure 3 For example, the limiting component 4 includes a limiting plate 42 and an elastic member 43; one end of the limiting plate 42 is hinged to the inner wall of the collection tank 1, and the other end extends above the liquid surface 131 of the collection liquid 13; one end of the elastic member 43 is connected to the lower plate surface of the limiting component 4, and the other end is fixed to the inner wall of the collection tank 1, so as to support the limiting component 4 on the liquid surface 131 of the collection liquid 13.

[0089] The limiting plate 42 is used to intercept the liquid surface 131 of the collected liquid 13 within the air inlet 12, and the elastic member 43 is used to limit and support the limiting plate 42 on the liquid surface 131 of the collected liquid 13.

[0090] Please see Figure 1In some possible embodiments, the lower end of the collection box 1 is provided with a metal valve 5 that communicates with the receiving cavity 11.

[0091] By setting a metal valve 5, the mixture of collected liquid 13 containing microplastic particles can be discharged through the metal valve 5 after the collected liquid 13 has been used for a period of time.

[0092] Please see Figure 1 For example, the outlet end of the metal valve 5 is detachably connected to a second filter screen 6.

[0093] By setting a second filter screen 6, microplastics in the mixture of collected liquid 13 are filtered and collected when the mixture is discharged.

[0094] Please see Figure 1 In some possible embodiments, the air intake assembly 2 includes an air pump 21, an air vent 22, and a control valve 23; the air pump 21 is located on the top surface of the collection box 1; one end of the air vent 22 is connected to the air pump 21, and the other end passes downward through the collection box 1 and communicates with the receiving cavity 11 to form the air intake end of the air intake assembly 2; the control valve 23 is located on the air vent 22 and is placed outside the collection box 1.

[0095] It should be understood that the air pump 21 is used to draw microplastics into the receiving cavity 11, and the structure and working principle of the air pump 21 are both existing technologies; the control valve 23 is used to control the airflow in the air vent 22.

[0096] Furthermore, one end of the vent tube 22 that extends into the receiving cavity 11 is positioned above the liquid surface 131 of the collected liquid 13.

[0097] Optionally, the vacuum pump 21 is fixed on the vehicle frame and connected to the receiving cavity 11 of the collection box 1 through the vent pipe 22; the control valve 23 is located on the vent pipe 22 and its position on the vent pipe 22 can be determined according to actual needs.

[0098] Please see Figure 1 In some possible embodiments, the collection box 1 is provided with multiple sets of connecting rods 7 spaced apart around the center of the wheel tire 8. The connecting rods 7 extend radially along the wheel tire 8 and are connected to the wheel.

[0099] By setting a connecting rod 7 to fix the position of the collection box 1, the collection box 1 is always supported on the radial outer edge of the wheel tire 8 when the wheel tire 8 rotates; specifically, the connecting rod 7 is connected to the steering knuckle of the wheel, and the specific structure of the wheel steering knuckle is the prior art.

[0100] Optionally, the collection box 1 can also be fixed to the vehicle frame. Specifically, the collection box 1 is welded and fixed to the vehicle frame, and the air inlet 12 of the collection box 1 is covered on the outer peripheral wall of the wheel tire 8.

[0101] Optionally, the first filter screen 14 is selected with a 16-mesh specification; the second filter screen 6 is selected with a 300-mesh specification.

[0102] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A microplastic collection device for vehicle tires, characterized in that, include: A collection box is provided for placement on the radial outer edge of a wheel tire; the collection box has an internal cavity for containing microplastics. The receiving cavity contains a collection liquid; the collection box is provided with an air inlet communicating with the receiving cavity, and the air inlet faces the outer peripheral wall of the wheel tire; An air intake assembly is disposed on the collection box; the air intake end of the air intake assembly passes through the collection box and extends into the receiving cavity, and is positioned above the liquid surface of the collected liquid; as well as An air inlet pipe is placed inside the receiving cavity; one end of the air inlet pipe is connected to the air inlet, and the other end extends downward into the collecting liquid. A limiting component is disposed within the receiving cavity and placed on the surface of the collected liquid. One end of the limiting component is hinged to the lower end of the air inlet, and the other end extends into the receiving cavity. The upper end of the air inlet pipe covers the outside of the limiting component. When the air intake component is working, the extended end of the limiting component swings downward to allow the microplastic particles to enter the collected liquid. The air intake assembly is used to draw microplastic particles generated by the wheel tires into the collection liquid through the air inlet and the air intake pipe.

2. The microplastic collection device for vehicle tires as described in claim 1, characterized in that, The air inlet is covered with a first filter screen, which is used to intercept pollutants outside the collection box.

3. The microplastic collection device for vehicle tires as described in claim 1, characterized in that, The intake pipe includes: The first connecting pipe has its upper end covered at the air inlet; the cross-sectional dimensions of the first connecting pipe gradually decrease from the air inlet downwards. The second connecting tube is connected to the lower end of the first connecting tube; and one end of the second connecting tube extends downward into the collecting liquid.

4. The microplastic collection device for vehicle tires as described in claim 1, characterized in that, The limiting component is a rubber valve body connected to the inner wall of the collection box, and the inside of the rubber valve body is filled with a gaseous medium for making the rubber valve body float on the surface of the collected liquid.

5. The microplastic collection device for vehicle tires as described in claim 1, characterized in that, The limiting component includes: A limiting plate, one end of which is hinged to the inner wall of the collection tank, and the other end extends above the liquid surface of the collected liquid; An elastic element has one end connected to the lower plate surface of the limiting assembly and the other end fixed to the inner wall of the collection tank to support the limiting assembly on the surface of the collected liquid.

6. The microplastic collection device for vehicle tires as described in claim 1, characterized in that, The lower end of the collection box is equipped with a metal valve that communicates with the receiving cavity.

7. The microplastic collection device for vehicle tires as described in claim 6, characterized in that, The outlet end of the metal valve is detachably connected to a second filter screen.

8. The microplastic collection device for vehicle tires as described in claim 1, characterized in that, The intake assembly includes: An air pump is installed on the top surface of the collection box; A vent pipe, one end of which is connected to the air pump, and the other end which extends downwards into the collection box and communicates with the receiving cavity to form the air extraction end; and The control valve is located on the vent pipe and outside the collection box.

9. The microplastic collection device for vehicle tires as described in claim 1, characterized in that, The collection box is provided with multiple sets of connecting rods spaced apart around the center of the wheel tire. The connecting rods extend radially along the wheel tire and are connected to the wheel.

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