Wind and dust prevention device for bridge

Abstract

The application relates to the field of wind shielding devices and discloses a bridge wind shielding and dust falling device. Two atomizing nozzles which are in communication with a shunt chamber are symmetrically arranged at the lower end of the shunt, the overall dust falling effect is further strengthened, the atomizing nozzles not only depend on passive adsorption of the filter layer surface, but also realize active capture of the suspended dust in the airflow entering the dust falling cavity, in addition, the outer side of the screw rod and the sliding block is sleeved with a rubber telescopic pipe which is in the shape of an arch in section, and dynamic sealing is realized through the sealing rings at the upper end and the lower end, the scraping mechanism can freely ascend and descend under the driving of the screw rod, the atomizing water drops, dust and seawater cannot intrude into the transmission components, corrosion or jamming is avoided, and finally, the dust concentration sensor can be used to detect the dust concentration, so that the seawater is pumped by the water pump only when the dust concentration reaches a predetermined value.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wind shielding equipment, in particular to a bridge wind shielding and dust falling equipment. BACKGROUND

[0002] Although the existing wind shielding equipment applied to the bridge can block certain airflow, it cannot collect and block the dust flowing with the airflow, and it is necessary to clean the bridge by a dust removal vehicle to keep it clean, which is very inconvenient. In addition, the dust will adhere to the wind shielding equipment with the airflow, which will affect the appearance of the wind shielding equipment over a long period of time. In addition, when encountering strong wind weather, the dust adhering to the wind shielding equipment will even float in the air again, affecting the air environment and vision. Moreover, if the existing water mist dust falling method needs to arrange water pipeline additionally, it is very inconvenient. SUMMARY

[0003] The present application provides a bridge wind shielding and dust falling equipment, which overcomes the deficiencies described in the background art.

[0004] The technical scheme adopted by the present application to solve its technical problems is:

[0005] A bridge wind shielding and dust falling equipment, comprising a wind shielding barrier installed on a bridge, wherein the surface of the wind shielding barrier is provided with a dust falling cavity, and symmetrical dust falling filter layers are arranged in the dust falling cavity, and a water supply assembly is arranged between the two dust falling filter layers, the water supply assembly is in contact with the left and right dust falling filter layers respectively, and the water supply assembly is connected with a water pump for pumping seawater through a water supply pipe.

[0006] A salt filter is arranged between the water supply pipe and the water pump, the salt filter comprises a sleeve and a hollow threaded pipe sleeved outside the sleeve, a double-channel filter pipe body and a stabilizer are arranged in the hollow threaded pipe, and a clamping groove is arranged on the upper and lower sides of the inner end of the hollow threaded pipe, the double-channel filter pipe body and the stabilizer are embedded in the corresponding clamping grooves.

[0007] An M-shaped flow channel is arranged in the double-channel filter pipe body, an opening is arranged in the middle of the M-shaped flow channel, the stabilizer is inserted into the double-channel filter pipe body through the opening and is in communication with the M-shaped flow channel, a through hole is arranged in the stabilizer, a communication port is arranged in a section of the M-shaped flow channel away from the opening, the through hole is in communication with the communication port through the flow channel, and when the water pump pumps seawater, the seawater flows into the flow channel through the communication port and then flows to the water supply pipe through the through hole in the stabilizer.

[0008] Among them, a plurality of filter cots are arranged equidistantly in the M-shaped flow channel, and the double-channel filter pipe body is embedded in the clamping groove through the clamping plate arranged at the lower end thereof, and the stabilizer is embedded in the clamping groove through the clamping plate arranged at the upper end thereof.

[0009] The water supply assembly comprises a flow divider and two flow divider inclined plates symmetrically arranged at the left and right sides of the lower end of the flow divider, the flow divider inclined plates are inserted into the flow divider, the flow divider inclined plates are provided with water outlet channels extending to the left and right ends, the flow divider is provided with a flow divider chamber in communication with the water supply pipe, the water supply pipe is in communication with the water outlet channels through the flow divider chamber, and the flow divider inclined plates are arranged in a downward inclined manner.

[0010] The lower end of the dust falling cavity is arranged in an inclined manner, and the dust falling cavity is in communication with the outside.

[0011] In a preferred technical solution, the two flow divider inclined plates are arranged in an eight-shaped structure, and the edges of the flow divider inclined plates extend along the width direction of the dust falling filter layer.

[0012] In a preferred technical solution, there is a gap between the lower end edge of the water-soaked cotton and the lower end edge of the filter screen, and the surface of the filter screen not covered by the water-soaked cotton has a channel for air to pass through.

[0013] In a preferred technical solution, the dust falling cavity is further provided with a scraping mechanism, the front and rear ends of the scraping mechanism are respectively in abutment with the left and right dust falling filter layers, the scraping mechanism is sleeved on a lead screw, the lead screw is driven to rotate by a motor, and the lead screw is in transmission connection with the scraping mechanism to drive the scraping mechanism to ascend and descend by the motor and scrape off the dust and water stains attached to the surface of the dust falling filter layer.

[0014] In a preferred technical solution, the scraping mechanism comprises a lead screw sliding block and C-shaped scraping members, the C-shaped scraping members are symmetrically arranged at the left and right sides of the lead screw sliding block, the C-shaped scraping member comprises an extension plate and rubber scraping plates symmetrically arranged at the upper and lower ends of the extension plate, the side of each rubber scraping plate close to the dust falling filter layer is arranged in an arc surface structure, and a plurality of scraping teeth are equidistantly arranged on the arc surface structure, when the C-shaped scraping member moves up and down, the scraping teeth arranged on the surface of the arc surface structure scrape off the dust and water stains attached to the surface of the dust falling filter layer.

[0015] The connecting end of the rubber scraping plate and the extension plate is provided with an arc-shaped groove recessed inward, and the arc-shaped groove is used as a fulcrum to bend when the C-shaped scraping member is stressed.

[0016] In a preferred technical solution, two atomizing nozzles are symmetrically arranged at the lower end of the flow divider, the two atomizing nozzles are in communication with the flow divider chamber, and the two atomizing nozzles are arranged staggered with the lead screw sliding block.

[0017] In a preferred technical solution, a rubber telescopic pipe is sleeved on the lead screw sliding block, the rubber telescopic pipe is symmetrically arranged at the upper and lower ends of the lead screw sliding block, and the two rubber telescopic pipes are respectively fixed by the sealing rings arranged at the two ends thereof.

[0018] The cross section of the rubber telescopic pipe is in an arch-shaped structure.

[0019] Compared with the prior art, the technical scheme has the following advantages:

[0020] The present application further strengthens the overall dust reduction effect by symmetrically arranging two atomizing nozzles communicating with the shunt chamber at the lower end of the shunt, not only relying on passive adsorption on the surface of the filter layer, but also achieving active capture of suspended dust in the airflow entering the dust reduction chamber, in addition, to ensure the reliable operation of this efficient dust reduction system in high humidity and high salt spray environment, the outer side of the screw block is sleeved with an arc-shaped rubber expansion pipe, and dynamic sealing is realized through the sealing rings at the upper and lower ends, which not only allows the scraping mechanism to freely ascend and descend under the drive of the screw rod, but also effectively prevents the invasion of atomized water droplets, dust and seawater salt into the transmission components, avoiding corrosion or jamming. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described below in conjunction with the drawings and examples.

[0022] Figure 1 The present application is a whole diagram.

[0023] Figure 2 The present application is Figure 1 Side view.

[0024] Figure 3 The present application is a schematic diagram of the internal structure of the windbreak.

[0025] Figure 4 The present application is a schematic diagram of the dust reduction filter layer and water supply assembly.

[0026] Figure 5 The present application is a schematic diagram of the dust reduction filter layer.

[0027] Figure 6 The present application is a schematic diagram of the dust reduction chamber.

[0028] Figure 7 The present application is a schematic diagram of the scraping mechanism.

[0029] Figure 8 The present application is a schematic diagram of the screw block and screw rod.

[0030] Figure 9 The present application is a schematic diagram of the water supply assembly.

[0031] Figure 10 The present application is a schematic diagram of the water supply assembly.

[0032] Figure 11 The present application is a schematic diagram of the water supply assembly.

[0033] Figure 12 The present application is a schematic diagram of the rubber expansion pipe.

[0034] Figure 13 The present application is a schematic diagram of the salt filter.

[0035] Figure 14 It is the exploded view of the salt filter.

[0036] In the figure: windbreak 1, dust falling cavity 11, dust falling filter layer 12, water supply assembly 13, scraping mechanism 14;

[0037] Filter screen 121, water-soaked cotton 122, dust concentration sensor 123;

[0038] Flow divider 131, flow divider chamber 1311, atomizing nozzle 1312, flow divider inclined plate 132, water outlet channel 1321, water supply pipe 133, water pump 134;

[0039] Lead screw sliding block 141, rubber telescopic pipe 1411, sealing ring 1412, C-shaped scraping piece 142, lead screw 143, motor 144.

[0040] Salt filter 2, sleeve 21, hollow screw pipe 22, clamping groove 221, double-channel filter pipe body 23, filter cotton 231, communication port 232, clamping plate one 233, stabilizer 24, clamping plate two 241. DETAILED DESCRIPTION

[0041] As Figures 1 to 12 shown, the application proposes a wind and dust falling device for bridge, which comprises a windbreak 1 installed on the bridge, characterized in that the surface of the windbreak 1 is provided with a dust falling cavity 11, and the dust falling cavity 11 is symmetrically provided with a dust falling filter layer 12, and there is a spacing between the two dust falling filter layers 12, and a water supply assembly 13 is arranged between the two dust falling filter layers 12, the water supply assembly 13 respectively abuts against the left and right dust falling filter layers 12, and the water supply assembly 13 is connected in communication with a water pump 134 for pumping seawater through a water supply pipe 133;

[0042] The dust falling filter layer 12 comprises a filter screen 121 and water-soaked cotton 122, the water-soaked cotton 122 is arranged at the upper end edge of the filter screen 121, and the water supply assembly 13 abuts against the water-soaked cotton 122;

[0043] The water supply assembly 13 comprises a flow divider 131 and flow divider inclined plates 132 symmetrically arranged at the lower end left and right sides of the flow divider 131, the flow divider inclined plates 132 are inserted into the flow divider 131, the flow divider inclined plates 132 are provided with water outlet channels 1321 extending to the left and right ends, the flow divider 131 is provided with a flow divider chamber 1311 connected in communication with the water supply pipe 133, the water supply pipe 133 is connected in communication with the water outlet channels 1321 through the flow divider chamber 1311, and the flow divider inclined plates 132 are arranged in a downward inclined manner;

[0044] The lower end of the dust falling cavity 11 is arranged in an inclined manner, and the dust falling cavity 11 is connected in communication with the outside.

[0045] As known above, the dust falling cavity 11 is arranged on the surface of the windbreak 1 to provide a controlled flow channel for the airflow and dust. The lower end is inclined and connected to the outside to facilitate the collection and discharge of the intercepted dust and sewage, avoiding water accumulation or blockage. During use, the filter screen 121 preliminarily intercepts larger dust particles, and the water supply assembly 13 continuously moistens to form a moist surface, which can efficiently adsorb fine dust particles and prevent them from penetrating or rebounding.

[0046] When the water pump 134 pumps seawater, the seawater successively passes through the water supply pipe 133, the shunt chamber 1311, the water outlet channel 1321, and the wetting cotton 122 on the left and right sides. The shunt inclined plate 132 not only accurately guides the water to the wetting cotton 122, but also guides the water flow to slowly infiltrate along the filter layer surface, maintaining the moist state of the upper area of the filter screen 121 and enhancing the dust falling efficiency.

[0047] The working principle is as follows. When the wind blows over the bridge, the airflow carrying dust enters the dust falling cavity 11. The airflow first contacts the filter screen 121 on one side, and larger particles are physically intercepted. The airflow continues to pass through the wetting cotton 122, and fine dust is efficiently captured due to the water film adhesion. Since both sides are provided with dust falling filter layers 12, the airflow forms a certain disturbance in the cavity, prolonging the residence time and improving the dust removal efficiency. The water supply assembly 13 continuously replenishes water for the wetting cotton 122 to prevent the dust falling capacity from decreasing due to evaporation or drying. The captured dust falls along the filter layer with the water flow, collects at the inclined bottom of the dust falling cavity 11, and is finally discharged through the outward communication port to prevent accumulation.

[0048] Meanwhile, as shown in the accompanying Figure 13 , the accompanying Figure 14 , a salt filter 2 is arranged between the water supply pipe and the water pump. The salt filter 2 includes a sleeve 21 and a hollow threaded pipe 22 sleeved outside the sleeve 21. A double-channel filter pipe body 23 and a stabilizer 24 are arranged in the hollow threaded pipe 22. The upper and lower sides of the inner end of the hollow threaded pipe 22 are respectively provided with a clamping groove 221. The double-channel filter pipe body 23 and the stabilizer 24 are embedded in the corresponding clamping grooves 221.

[0049] The double-channel filter pipe body 23 is provided with an M-shaped flow channel, and an opening is arranged in the middle of the M-shaped flow channel. The stabilizer 24 is inserted into the double-channel filter pipe body 23 through the opening and communicates with the M-shaped flow channel. The stabilizer 24 is provided with a through hole. A communication port 232 is arranged at a position away from the opening of the M-shaped flow channel. The through hole communicates with the communication port 232 through the flow channel. When the water pump pumps seawater, the seawater flows into the flow channel through the communication port 232 and then flows to the water supply pipe through the through hole in the stabilizer 24.

[0050] Further, a plurality of filter cottons 231 are arranged equidistantly in the M-shaped flow channel, and the double-channel filter pipe body 23 is embedded into the clamping groove 221 through the clamping plate one 233 arranged at the lower end of the double-channel filter pipe body 23, and the stabilizer 24 is embedded into the clamping groove 221 through the clamping plate two 241 arranged at the upper end of the stabilizer 24.

[0051] The salt filter 2 effectively reduces the salt content in seawater through the unique M-shaped flow channel structure inside, preventing the subsequent wind-blocking and dust-reducing equipment from being blocked or damaged due to salt crystallization. When the water pump extracts seawater, the water flow first enters the M-shaped flow channel in the double-channel filter pipe body 23 through the communication port 232. As shown above, the flow channel presents a zigzag M-shaped path and is equidistantly arranged with multiple layers of filter cottons 231. During the flow through the M-shaped flow channel, due to the multiple changes in flow direction, part of the water body is atomized at the bend, and under the action of natural wind on the bridge, it accelerates evaporation, while the salt that cannot evaporate is precipitated and adsorbed and retained by the filter cottons 231, realizing local desalination. At the same time, the M-shaped structure also plays a sedimentation role, allowing sediment and other impurities to settle, further purifying the water quality. The treated low-salinity seawater finally flows into the through hole of the stabilizer 24 from the distal end of the M-shaped flow channel through the communication port 232, and is then transported to the water supply pipe 133. The sleeve pipe 21, the hollow threaded pipe 22, the double-channel filter pipe body 23, and the stabilizer 24 are all designed as detachable structures, which facilitates regular disassembly and cleaning or replacement of the filter cottons 231 and maintenance of the internal components, ensuring long-term stability of the filtration efficiency, thereby effectively protecting the water supply components and dust-reducing filter layer inside the wind-blocking barrier 1 from the influence of salt crystallization, prolonging the service life of the equipment.

[0052] Moreover, the two shunt inclined plates 132 are arranged in a spreader structure, and the edges of the shunt inclined plates 132 extend along the width direction of the dust-reducing filter layer 12. The spreader structure causes the two shunt inclined plates 132 to open towards the left and right dust-reducing filter layers 12, respectively, and in cooperation with the edges extending along the width direction of the filter layer, it can ensure that the water flows uniformly from the entire width direction of the filter layer, avoiding local dryness and improving the wet coverage rate of the water-soaked cotton 122.

[0053] Further, there is a gap between the lower end edge of the water-soaked cotton 122 and the lower end edge of the filter screen 121, and the surface of the filter screen 121 not covered by the water-soaked cotton 122 forms a passage for air to pass through. It needs to be explained that if the water-soaked cotton 122 completely covers the filter screen 121, the wind resistance may be significantly increased after wetting due to capillary blockage or excessive water film. Leaving the lower uncovered area forms a low-resistance air passage, ensuring that the wind-blocking barrier 1 does not significantly affect the ventilation performance of the bridge while reducing dust, avoiding the accumulation of wind pressure and causing structural risks.

[0054] Furthermore, the dust settling chamber 11 is also provided with a scraping mechanism 14. The front and rear ends of the scraping mechanism 14 abut against the dust settling filter layers 12 on the left and right sides, respectively. The scraping mechanism 14 is sleeved on a lead screw 143, which is driven to rotate by a motor 144. The lead screw 143 and the scraping mechanism 14 form a lead screw transmission connection, so that the scraping mechanism 14 can be driven to rise and fall by the motor 144, and the dust and water stains attached to the surface of the dust settling filter layer 12 can be scraped off.

[0055] Furthermore, the scraping mechanism 14 includes a lead screw slider 141 and a C-shaped scraper 142. The C-shaped scraper 142 is symmetrically arranged on the left and right sides of the lead screw slider 141. The C-shaped scraper 142 includes an extension plate and rubber scrapers symmetrically arranged at the upper and lower ends of the extension plate. The side of the two rubber scrapers near the dust filter layer 12 is set with an arc surface structure, and multiple scraping teeth are arranged at equal intervals on the arc surface structure. When the C-shaped scraper 142 moves up and down, the scraping teeth set on the surface of the arc surface structure scrape away the dust and water stains attached to the surface of the dust filter layer 12.

[0056] The connection end between the rubber scraper and the extension plate is provided with an inwardly recessed arc-shaped groove. When the C-shaped scraper 142 is subjected to force, it bends around the arc-shaped groove as a fulcrum. During operation, the motor 144 drives the lead screw 143 to rotate. The lead screw 143 and the lead screw slider 141 form a lead screw transmission pair, converting the rotational motion into vertical linear motion. The lead screw slider 141 drives the C-shaped scrapers 142 on both sides to move up and down along the surface of the dust settling filter layer 12. The scraper teeth contact the surface of the filter screen 121. When the C-shaped scraper 142 moves down (or up) with the lead screw slider 141, the scraper teeth on the rubber scraper slide closely against the surface of the filter screen 121. The arc-shaped structure makes the scraper teeth contact the filter screen more closely, especially adapting to the slight undulations on the filter screen surface caused by moisture or deformation. Figure 3 Appendix Figure 6 As shown, the lower inner side of the dust settling chamber 11 is inclined. The scraped dirt (including water, dust, mud, etc.) is pushed to the bottom of the dust settling chamber 11 and finally discharged out of the chamber through the inclined surface at the lower inner side of the dust settling chamber 11.

[0057] Furthermore, the connection between the rubber scraper and the extension plate is provided with an inwardly recessed arc-shaped groove; this arc-shaped groove mechanically constitutes a preset flexible hinge point, allowing the rubber scraper to bend controllably around this point when subjected to force.

[0058] The lower end of the flow distributor 131 is also symmetrically provided with two atomizing nozzles 1312, both of which are in communication with the flow distribution chamber 1311 and are staggered with the screw rod slider 141, and the screw rod slider 141 is provided with a rubber telescopic pipe 1411, which is symmetrically arranged at the upper and lower ends of the screw rod slider 141, and the two rubber telescopic pipes 1411 are fixed by the sealing rings 1412 arranged at the two ends thereof.

[0059] Therefore, the present application further strengthens the overall dust removal effect by symmetrically arranging two atomizing nozzles 1312 in communication with the flow distribution chamber 1311 at the lower end of the flow distributor 131, so that the active capture of the suspended dust in the airflow entering the dust removal cavity 11 is realized in addition to the passive adsorption on the surface of the filter layer. Specifically, the seawater drawn by the water pump 134 enters the flow distribution chamber 1311 through the water supply pipe 133, and part of the water flow continuously wets the immersed cotton 122 through the water outlet channel 1321 of the flow distribution inclined plate 132, so that a wet adsorption area is formed at the upper part of the filter screen 121 for intercepting small particles that penetrate through the filter screen; at the same time, the other part of the water flow is introduced into the atomizing nozzles 1312, atomized into a large number of micron-sized water droplets through the internal micro-porous structure, and uniformly sprayed into the internal space of the dust removal cavity 11 in a staggered manner with the screw rod slider 141, so as to avoid the direct impact of the water mist on the moving parts of the scraping mechanism 14. These atomized water droplets fully collide and coagulate with the dust particles entering with the wind in the airflow channel, so that the light and small dust particles that are difficult to be directly captured by the filter screen are quickly increased in weight and settled, or attached to the wet filter layer surface, thereby significantly improving the removal efficiency of the particulate matter. The atomizing dust removal process, the wet adsorption of the dust removal filter layer 12 and the cooperation of the scraping mechanism 14 greatly reduce the dust load entering the filter layer area; the scraping mechanism 14 periodically removes the wet dust and water stains accumulated on the surface of the filter layer through the arc-shaped scraping teeth on the C-shaped scraping member 142, prevents the pores from being blocked by mud, and maintains long-term permeability. In addition, in order to ensure the reliable operation of the high-efficiency dust removal system in a high-humidity and high-salt environment, the rubber telescopic pipe 1411 with an arc-shaped cross section is arranged outside the screw rod slider 141 and is dynamically sealed by the sealing rings 1412 at the upper and lower ends, which allows the scraping mechanism 14 to freely ascend and descend under the drive of the screw rod 143 and effectively prevents the atomized water droplets, dust and seawater salt from invading the transmission components, thereby avoiding corrosion or jamming.

[0060] In addition, according to the accompanying drawings Figure 5As shown in the figure, the filter screen 121 in the application is further provided with a dust concentration sensor 123, which is in signal connection with the water pump 134, and the dust concentration sensor 123 has the effect of allowing the seawater to enter the water supply assembly 13 through the control of the water pump 134 to flow into the immersed cotton 122 through the flow dividing piece 131 and be sprayed outwards through the atomizing nozzle 1312 to achieve the corresponding dust reduction effect after the dust reaches the specified predetermined concentration value through the preset dust concentration value.

[0061] The above description is only the preferred embodiment of the application, and therefore cannot limit the range of the application. Equivalent changes and modifications made according to the scope of the patent and the content of the specification should still be within the scope of the application.

Claims

1. A windbreak and dust control apparatus for a bridge comprising a windbreak barrier mounted on the bridge, characterized in that, The windbreak surface is provided with a dust falling cavity, symmetrical dust falling filter layers are arranged in the dust falling cavity, a space exists between the two dust falling filter layers, a water supply assembly is arranged between the two dust falling filter layers, the water supply assembly abuts against the left and right dust falling filter layers respectively, the water supply assembly is communicated with the water pump for pumping seawater through a water supply pipe; The dust falling filter layer comprises a filter screen and water-soaked cotton, the water-soaked cotton is arranged at the upper end edge of the filter screen, and the water supply assembly abuts against the water-soaked cotton; A salt filter is arranged between the water supply pipe and the water pump, the salt filter comprises a sleeve and a hollow threaded pipe sleeved outside the sleeve, a double-channel filter pipe body and a stabilizer are arranged in the hollow threaded pipe, a clamping groove is arranged on the upper and lower sides of the inner end of the hollow threaded pipe, and the double-channel filter pipe body and the stabilizer are embedded in the corresponding clamping grooves. An M-shaped flow channel is arranged in the double-channel filter pipe body, an opening is arranged in the middle of the M-shaped flow channel, the stabilizer is inserted into the double-channel filter pipe body through the opening and is communicated with the M-shaped flow channel, a through hole is arranged in the stabilizer, a communication opening is arranged in a section of the M-shaped flow channel away from the opening, the through hole is communicated with the communication opening through the M-shaped flow channel, when the water pump pumps seawater, the seawater flows into the M-shaped flow channel through the communication opening and then flows to the water supply pipe through the through hole in the stabilizer; A plurality of filter cots are arranged in the M-shaped flow channel at equal intervals.

2. The wind and dust barrier device for bridges according to claim 1, characterized in that, The double-channel filter pipe body is embedded in the clamping groove through the clamping plate arranged at the lower end of the double-channel filter pipe body, and the stabilizer is embedded in the clamping groove through the clamping plate arranged at the upper end of the stabilizer.

3. The wind and dust barrier device for bridges according to claim 1, characterized in that, The water supply assembly comprises a flow dividing piece and flow dividing inclined plates symmetrically arranged at the left and right sides of the lower end of the flow dividing piece, the flow dividing inclined plates are inserted into the flow dividing piece, the flow dividing inclined plates are provided with water outlet channels extending to the left and right ends, the flow dividing piece is provided with a flow dividing chamber communicated with the water supply pipe, the water supply pipe is communicated with the water outlet channels through the flow dividing chamber, and the flow dividing inclined plates are arranged in a downward inclined manner. The lower end of the dust falling cavity is arranged in an inclined manner and the dust falling cavity is communicated outward, the two flow dividing inclined plates are arranged in an eight-shaped structure and the edges of the flow dividing inclined plates extend along the width direction of the dust falling filter layer.

4. The wind and dust barrier device for bridges according to claim 1, characterized in that, A space exists between the lower end edge of the water-soaked cotton and the lower end edge of the filter screen, and the surface of the filter screen not covered by the water-soaked cotton is provided with a channel for air passing through.

5. The wind and dust barrier device for bridges according to claim 3, characterized in that, A scraping mechanism is further arranged in the dust falling cavity, the front and rear ends of the scraping mechanism abut against the left and right dust falling filter layers respectively, the scraping mechanism is sleeved on a lead screw, the lead screw is driven to rotate by a motor, the lead screw is in transmission connection with the scraping mechanism to drive the scraping mechanism to lift and scrape dust and water stains attached to the surface of the dust falling filter layer.

6. The wind and dust barrier device for bridges according to claim 5, characterized in that The scraping mechanism comprises a lead screw sliding block and C-shaped scraping pieces symmetrically arranged at the left and right sides of the lead screw sliding block, the C-shaped scraping pieces comprise extension plates and rubber scraping plates symmetrically arranged at the upper and lower ends of the extension plates, the side of each rubber scraping plate close to the dust falling filter layer is provided in an arc surface structure, a plurality of scraping teeth are arranged at equal intervals on the arc surface structure, and the scraping teeth on the surface of the arc surface structure scrape dust and water stains attached to the surface of the dust falling filter layer when the C-shaped scraping pieces move up and down. An arc-shaped groove recessed inward is arranged at the connecting end of the rubber scraping plate and the extension plate, and the C-shaped scraping piece bends around the arc-shaped groove as a fulcrum when the C-shaped scraping piece is stressed.

7. The wind and dust barrier device for bridges according to claim 6, characterized in that The lower end of the flow divider is also symmetrically provided with two atomizing nozzles, both of which are communicated with the flow dividing chamber and staggered with the screw rod sliding blocks.

8. The wind and dust barrier device for bridges according to claim 7, characterized in that The rubber telescopic pipes are arranged symmetrically at the upper and lower ends of the screw rod sliding blocks, and are fixed by the sealing rings arranged at the two ends of the rubber telescopic pipes. The cross section of the rubber telescopic pipe is in an arch shape.

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