Collecting and pretreating device for tire wear particles in road dust

Abstract

The utility model relates to environmental detection technical field, concretely is the collection pretreatment device of tire wear particle in road dust, including mobile car, install negative pressure fan, dust collection subassembly and dust screening subassembly on mobile car, and dust collection subassembly includes end cover and connecting channel, and dust screening subassembly includes fixed jar, jar cover, cover collection bucket and isolation subassembly, and the embedded isolation net of collection bucket. The collection pretreatment device of tire wear particle in road dust, through dust screening subassembly realizes the collection of road surface dust and the separation of large particle material, wherein, the isolation net in collection bucket can intercept larger leaf, stone and other impurities, and the filter plate of isolation subassembly can further block, make fine dust, wear rubber dust impurity be collected to the recess groove, realized tire wear particle and the effective separation of large particle impurity, and the concentration of tire wear particle in the dust of subsequent collection is detected.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring technology, specifically to a pretreatment device for collecting tire wear particles in road dust. Background Technology

[0002] Tire wear particles are tiny particles generated during vehicle operation due to friction between tires and the road surface. Their composition is complex, containing rubber, additives, and road wear materials. Because these particles possess a certain degree of toxicity, their long-term presence in the road environment may lead to their entry into ecosystems through air and water, posing a potential impact on the environment and biological health. Therefore, collecting tire wear particles from the road environment provides a foundation for subsequent component analysis, toxicity assessment, and other processing and detection work. It helps to accurately determine their concentration levels in road dust, which is crucial for a deeper understanding of their environmental impact.

[0003] Utility model patent CN221118358U discloses a road dust cleaning and collection device. This device includes a body, a motor on one side of the body, and a brush on another side. The output end of the motor is fixedly connected to the brush via a rotating shaft. A collection box is located on one side of the body. This utility model incorporates a dustproof device, allowing personnel to insert a ring-shaped plate into a rectangular frame through a circular hole and secure it with a first bolt. This allows a baffle and pleated cloth to surround and enclose the brush, preventing dust from splashing during cleaning and reducing the amount of dust floating in the air that could affect personnel operations. Furthermore, when the baffle collides with an obstacle, it can retract and return to its original position via a spring, minimizing the obstruction of the brush's movement and improving the convenience and environmental friendliness of cleaning.

[0004] The existing road dust collection device lacks a dedicated sieving structure in its collection box, making it unable to effectively separate particles of different sizes from the inhaled dust. This results in the collected dust being mixed with large particles such as tire wear particles, leaves, and gravel. Therefore, we propose a pretreatment device for collecting tire wear particles from road dust. Utility Model Content

[0005] The purpose of this invention is to provide a pretreatment device for collecting tire wear particles in road dust, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A pretreatment device for collecting tire wear particles in road dust includes a mobile vehicle. A negative pressure fan is installed at the rear of the mobile vehicle, and a dust collection component is installed at the front of the mobile vehicle. A dust screening component is connected between the dust collection component and the negative pressure fan. The negative pressure fan generates negative pressure, causing the dust collection component to adsorb dust and other impurities from the road surface into the dust screening component for centralized screening. The dust collection assembly includes an end cover fixed to the bottom of the mobile vehicle and facing the ground, and a connecting channel connected to the top of the end cover. The dust screening assembly includes a fixed tank fixed on a mobile vehicle, a tank cover threaded to the top of the fixed tank, a collection bucket fitted inside the fixed tank, and an isolation assembly fixed below the tank cover. The outer surface of the fixed tank has an opening, and a connecting channel is connected to the opening. A negative pressure pipe is connected to the top surface of the outer periphery of the fixed tank, and the end of the negative pressure pipe is connected to the input end of a negative pressure fan. The collection bucket is fitted with a ring-shaped accordion-like mesh. The isolation assembly includes a ring plate and a filter plate installed in the middle of the ring plate. The top of the mesh abuts against the bottom of the ring plate. When the tank cover is tightened, the height of the connection port between the negative pressure pipe and the fixed tank is higher than the height of the ring plate.

[0007] Preferably, the front end of the mobile vehicle is provided with a hinge seat, on which a traction rod is hinged, and the traction rod is used to move the mobile vehicle.

[0008] In this setup, the hinge structure between the hinge seat and the tow bar allows for flexible adjustment of the traction direction, adapting to different traction equipment and facilitating the movement of the mobile vehicle on the road.

[0009] Preferably, the bottom of the end cover is open, and several rollers are rotatably connected to both the left and right ends of the end cover. The rollers contact the ground to keep the end cover at a fixed distance from the ground. Several connecting plates are also fixed to the left and right end faces of the end cover, and the top of the connecting plates is fixedly connected to the mobile vehicle.

[0010] In this design, the open bottom end facilitates dust adsorption, the rollers reduce friction between the end cover and the ground and maintain a fixed distance, and the connecting plate enhances the installation stability of the end cover.

[0011] Preferably, the bottom of the collection bucket has a groove, the shape of which is the same as the outline of the mesh, and the mesh is inserted into the groove.

[0012] In this setting, the groove can position and fix the mesh, preventing it from shifting during operation and ensuring the filtration effect.

[0013] Preferably, the opening in the fixed tank is positioned at a height higher than the top of the collection bucket, and the top of the mesh covers the bottom of the central hole of the annular plate. When external dust and other impurities enter the fixed tank, larger impurities such as leaves and gravel are intercepted by the mesh and stored in the collection bucket outside the mesh, while fine dust and abrasive rubber dust impurities pass through the mesh and are collected into the groove under the obstruction of the isolation component.

[0014] In this setup, the height difference between the inlet and the collection bin prevents dust from directly impacting the mesh, and the mesh works in conjunction with the isolation components to achieve the classified collection of different particles.

[0015] Preferably, a pair of lifting rods are fixed to the inner wall of the collection bucket opening, and the lifting rods are used by the user to lift the collection bucket.

[0016] In this setup, the handle provides a convenient grip for removing the collection bucket, making it easy to clean out internal impurities.

[0017] Preferably, the annular plate has an end ring at its outer peripheral edge, and a sealing ring is embedded on the outer peripheral surface of the end ring. The sealing ring plays a sealing role between the end ring and the wall of the fixed tank. A number of connecting rods are provided at equal intervals along the outer peripheral edge of the top of the end ring, and the top of the connecting rods is fixedly connected to the tank cover.

[0018] In this configuration, the end ring enhances the strength of the annular plate, the sealing ring ensures a sealing effect, and the connecting rod achieves a stable connection between the isolation component and the can lid.

[0019] Preferably, the filter plate covers the central hole of the annular plate, and a pressure ring is provided on the top surface of the annular plate. The pressure ring is used to press the filter plate tightly onto the annular plate using bolts. In this setup, the filter plate fully covers the central hole to ensure thorough filtration, and the pressure ring is tightened onto the filter plate with bolts to prevent it from loosening.

[0020] Compared with the prior art, the beneficial effects of this utility model are: This pretreatment device for collecting tire wear particles in road dust uses a dust screening component to collect road dust and separate large particles. The mesh inside the collection bin can intercept larger impurities such as leaves and gravel, while the filter plate of the isolation component can further block them, allowing fine dust and abrasion rubber dust impurities to be collected into the groove. This achieves effective separation of tire wear particles from large particles, facilitating further separation and treatment of the concentration of tire wear particles in the collected dust. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the dust collection component in this utility model; Figure 3 This is a cross-sectional view of the dust screening component in this utility model; Figure 4 This is an exploded view of the dust screening component in this utility model; Figure 5 This is a cross-sectional view of the collection bucket in this utility model; Figure 6 This is an exploded view of the isolation component in this utility model; The meanings of the labels in the diagram are as follows: 100. Mobile vehicle; 110. Negative pressure fan; 120. Towing bar; 200. Dust collection assembly; 210. End cover; 211. Connecting plate; 212. Roller; 220. Connecting channel; 300. Dust screening assembly; 310. Fixed tank; 311. Opening; 312. Negative pressure pipeline; 320. Tank cover; 330. Collection bucket; 331. Insert groove; 332. Partition mesh; 333. Lifting rod; 340. Isolation assembly; 341. Annular plate; 3411. End ring; 3412. Sealing ring; 3413. Connecting rod; 342. Filter plate; 343. Pressure ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-6 A pretreatment device for collecting tire wear particles in road dust includes a mobile vehicle 100. The front end of the mobile vehicle 100 is provided with a hinge seat, on which a traction rod 120 is hinged. The traction rod 120 can flexibly adjust the traction direction through the hinge structure with the hinge seat, making it easy to adapt to different traction equipment, thereby making it easier to move the mobile vehicle 100 on the road. A negative pressure fan 110 is installed at the rear of the mobile vehicle 100. The negative pressure fan 110 can generate continuous negative pressure suction, providing a power source for the dust adsorption process of the entire device. A dust collection component 200 is installed at the front of the mobile vehicle 100. The dust collection component 200 can be directly applied to the road surface and accurately targeted at the area where dust needs to be collected. A dust screening component 300 is connected between the dust collection component 200 and the negative pressure fan 110. The dust screening component 300 can screen the inhaled dust to separate different particles. The negative pressure generated by the negative pressure fan 110 causes the dust collection component 200 to adsorb dust and other impurities on the road surface into the dust screening component 300 for centralized screening.

[0024] like Figure 1 and Figure 2 As shown, in this utility model, the dust collection component 200 includes an end cover 210 fixed to the bottom of the mobile vehicle 100 and facing the ground, and a connecting channel 220 connected to the top of the end cover 210. The end cover 210 is set facing the ground, which can expand the adsorption range of road dust and reduce dust leakage; the connecting channel 220 can smoothly transport the dust adsorbed by the end cover 210 to the subsequent screening component. The bottom of the end cover 210 is open, which facilitates direct contact with and adsorption of road dust. Several rollers 212 are rotatably connected to both the left and right ends of the end cover 210. The rollers 212 contact the ground, which reduces the friction between the end cover 210 and the ground when the device moves, and at the same time maintains a fixed distance between the end cover 210 and the ground to ensure stable adsorption effect. Several connecting plates 211 are also fixed to the left and right end faces of the end cover 210. The connecting plates 211 firmly fix the end cover 210 to the bottom of the mobile vehicle 100, which enhances the structural stability of the end cover 210 during operation. The top of the connecting plates 211 is fixedly connected to the mobile vehicle 100.

[0025] like Figure 1 , Figure 3 and Figure 4 As shown, specifically, the dust screening component 300 includes a fixed tank 310 fixed on the mobile vehicle 100, a tank cover 320 threadedly connected to the top of the fixed tank 310, a collection bucket 330 fitted inside the fixed tank 310, and an isolation component 340 fixed below the tank cover 320. The fixed tank 310 provides a stable space for the entire screening process, supporting the installation and operation of the internal components. The tank cover 320 is threadedly connected, making it easy to open and close the fixed tank 310 and facilitating the maintenance and cleaning of the internal components. The collection bucket 330 can classify and collect the screened impurities, and its fitted structure makes it easy to remove and empty the slag. The isolation component 340 can isolate the dust, blocking the filtered dust and preventing it from being directly sucked away by the negative pressure fan 110.

[0026] like Figure 3 and Figure 4 As shown, a port 311 is further provided on the outer surface of the fixed tank 310, and the connecting channel 220 is connected to the port 311. The port 311 provides an inlet for the dust transported by the connecting channel 220 to enter the fixed tank 310. A negative pressure pipe 312 is connected to the top surface of the outer periphery of the fixed tank 310. The end of the negative pressure pipe 312 is connected to the input end of the negative pressure fan 110. The negative pressure pipe 312 can draw out the air in the fixed tank 310, forming a negative pressure environment in conjunction with the negative pressure fan 110.

[0027] like Figures 3-5As shown, the collection bin 330 is further equipped with an annular accordion-shaped mesh 332, which increases the filtration area and can more efficiently intercept larger particulate impurities. A groove 331 is provided at the bottom of the collection bin 330, the shape of which is the same as the outline of the mesh 332. The mesh 332 is inserted into the groove 331, which positions and fixes the mesh 332, preventing it from shifting during operation. The opening 311 is positioned higher than the top of the collection bin 330 within the fixed tank 310. This height allows dust to enter the collection bin 330 smoothly, preventing it from being blocked by the bin walls. The top of the mesh 332 covers the bottom of the central hole of the annular plate 341. When external dust and other impurities enter the fixed tank 310, larger impurities such as leaves and gravel are intercepted by the mesh 332 and stored in the collection bucket 330 outside the mesh 332, while fine dust and abrasive rubber dust impurities pass through the mesh 332 and are collected in the groove 331 under the obstruction of the isolation component 340.

[0028] like Figure 5 As shown, it is worth noting that a pair of lifting rods 333 are fixed to the inner wall of the opening of the collection bucket 330. The lifting rods 333 are used by the user to lift the collection bucket 330. The lifting rods 333 provide the user with a convenient grip point, making it easy to take the collection bucket 330 out of the fixed tank 310 and to clean the impurities collected inside.

[0029] like Figure 3 , Figure 4 and Figure 6As shown, the isolation assembly 340 includes an annular plate 341 and a filter plate 342 installed in the middle of the annular plate 341. The annular plate 341 provides a mounting base for the filter plate 342 and can limit the top end of the mesh 332. The filter plate 342 can further filter the fine particles that pass through the mesh 332, thereby improving the sieving purity. The top end of the mesh 332 abuts against the bottom end of the annular plate 341. An end ring 3411 is provided at the outer periphery of the annular plate 341, which can enhance the structural strength of the annular plate 341. A sealing ring 3412 is embedded on the outer periphery of the end ring 3411, which can enhance the sealing between the end ring 3411 and the tank wall of the fixed tank 310, prevent unfiltered air from flowing out from the gap, and ensure the effectiveness of the negative pressure environment. Several connecting rods 3413 are provided at equal intervals along the outer periphery of the top of the end ring 3411. The connecting rods 3413 securely connect the end ring 3411 to the tank cover 320, ensuring that the isolation component 340 is accurately installed in place under the action of the tank cover 320. The top of the connecting rod 3413 is fixedly connected to the tank cover 320. When the can lid 320 is tightened, the height of the connection port between the negative pressure pipe 312 and the fixed can 310 is higher than the height of the annular plate 341, so that when the negative pressure fan 110 generates negative pressure, it can be further filtered by the filter plate 342 to prevent dust from being sucked away by the negative pressure fan 110.

[0030] like Figure 6 As shown, it should be added that the filter plate 342 covers the center hole of the annular plate 341. The top surface of the annular plate 341 is provided with a pressure ring 343. The pressure ring 343 uses bolts to press the filter plate 342 onto the annular plate 341, preventing the filter plate 342 from loosening during operation and ensuring stable filtration effect.

[0031] It is worth noting that the negative pressure fan 110 involved in this utility model is existing conventional technology, and will not be described in detail here.

[0032] In this embodiment, the pretreatment device for collecting tire wear particles in road dust is used as follows: First, the mobile vehicle 100 is pulled to the road area where dust needs to be collected by the towing rod 120, so that the end cover 210 is aligned with the road surface. Then, the negative pressure fan 110 is started, which generates negative pressure. The end cover 210 begins to adsorb dust and other impurities on the road surface. The impurities enter the fixed tank 310 through the connecting channel 220 and the opening 311. Next, the impurities entering the fixed tank 310 fall into the collection bucket 330. Larger leaves, gravel, etc. are intercepted outside the mesh 332, while fine dust and tire wear particles pass through the mesh and are collected in the groove 331 by the filter plate 342 of the isolation component 340. Finally, the negative pressure fan 110 is turned off, the tank cover 320 is unscrewed, and the collection bucket 330 is taken out by the lifting rod 333. The impurities outside the mesh and inside the groove are cleaned, completing one dust collection and screening process, which facilitates further processing of the tire wear particles in the collected dust.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pretreatment device for collecting tire wear particles in road dust, comprising a mobile vehicle (100), characterized in that: The rear of the mobile vehicle (100) is equipped with a negative pressure fan (110), and the front of the mobile vehicle (100) is equipped with a dust collection assembly (200). A dust screening assembly (300) is connected between the dust collection assembly (200) and the negative pressure fan (110). The negative pressure fan (110) generates negative pressure, which causes the dust collection assembly (200) to adsorb the dust and impurities on the road surface into the dust screening assembly (300) for centralized screening. The dust collection assembly (200) includes an end cap (210) fixed to the bottom of the mobile vehicle (100) and facing the ground, and a connecting channel (220) connected to the top of the end cap (210). The dust screening assembly (300) includes a fixed tank (310) fixed on a mobile vehicle (100), a tank cover (320) threaded to the top of the fixed tank (310), a collection bucket (330) fitted inside the fixed tank (310), and an isolation assembly (340) fixed below the tank cover (320). An opening (311) is provided on the outer surface of the fixed tank (310), and a connecting channel (220) communicates with the opening (311). A negative pressure pipe (312) is connected to the top surface of the outer periphery of the fixed tank (310). The end of the pressure pipe (312) is connected to the input end of the negative pressure fan (110). The collection tank (330) is equipped with a mesh (332) in the shape of an annular accordion pleats. The isolation component (340) includes an annular plate (341) and a filter plate (342) installed in the middle of the annular plate (341). The top of the mesh (332) abuts against the bottom of the annular plate (341). When the tank cover (320) is tightened, the height of the connection port between the negative pressure pipe (312) and the fixed tank (310) is higher than the height of the annular plate (341).

2. The pretreatment device for collecting tire wear particles in road dust according to claim 1, characterized in that: The mobile vehicle (100) is provided with a hinge at its front end, on which a traction rod (120) is hinged. The traction rod (120) is used to move the mobile vehicle (100).

3. The pretreatment device for collecting tire wear particles in road dust according to claim 1, characterized in that: The bottom of the end cover (210) is open. Several rollers (212) are rotatably connected to both the left and right ends of the end cover (210). The rollers (212) contact the ground to keep the end cover (210) at a fixed distance from the ground. Several connecting plates (211) are also fixed at the left and right end faces of the end cover (210). The top of the connecting plate (211) is fixedly connected to the mobile vehicle (100).

4. The pretreatment device for collecting tire wear particles in road dust according to claim 1, characterized in that: The bottom of the collection bucket (330) is provided with a groove (331). The shape of the groove (331) is the same as the outer contour of the mesh (332). The mesh (332) is inserted into the groove (331).

5. The pretreatment device for collecting tire wear particles in road dust according to claim 4, characterized in that: The opening (311) in the fixed tank (310) is positioned at a height higher than the top of the collection bucket (330). The top of the mesh (332) covers the bottom of the central hole of the annular plate (341). When external dust and impurities enter the fixed tank (310), larger leaves and gravel impurities are intercepted by the mesh (332) and stored in the collection bucket (330) outside the mesh (332), while fine dust and abrasive rubber dust impurities pass through the mesh (332) and are collected in the groove (331) under the obstruction of the isolation component (340).

6. The pretreatment device for collecting tire wear particles in road dust according to claim 1, characterized in that: A pair of lifting rods (333) are fixed to the inner wall of the opening of the collection bucket (330). The lifting rods (333) are used by the user to lift the collection bucket (330).

7. The pretreatment device for collecting tire wear particles in road dust according to claim 1, characterized in that: An end ring (3411) is provided at the outer peripheral edge of the annular plate (341). A sealing ring (3412) is embedded on the outer peripheral surface of the end ring (3411). The sealing ring (3412) plays a sealing role between the end ring (3411) and the tank wall of the fixed tank (310). Several connecting rods (3413) are provided at equal intervals along the outer peripheral edge of the top of the end ring (3411). The top of the connecting rod (3413) is fixedly connected to the tank cover (320).

8. The pretreatment device for collecting tire wear particles in road dust according to claim 1, characterized in that: The filter plate (342) covers the center hole of the annular plate (341), and the top surface of the annular plate (341) is provided with a pressure ring (343). The pressure ring (343) uses bolts to press the filter plate (342) onto the annular plate (341).

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