Air purification treatment equipment for building construction site

Abstract

The invention discloses air purification treatment equipment for a building construction site, and relates to the technical field of air purification treatment equipment. Comprising a barrel, the inner side of the top of the barrel is provided with an inclined edge, the inner wall, close to the inclined edge, of the barrel is fixedly connected with a fixing ring, the inner wall of the fixing ring is rotationally connected with a plurality of rotating assemblies, the ends, away from the fixing ring, of the rotating assemblies are rotationally connected with a middle ring, and the rotating assemblies are evenly distributed with the middle ring as the center. According to the air purification treatment equipment for the building construction site, vertical ascending airflow is formed through bottom air inlet and top air exhaust, so that the flowing path of dusty gas or waste gas in the equipment is more stable and uniform, local airflow short circuit is avoided, and the risk that untreated gas is directly exhausted is reduced; the inclined surfaces of the guide plates can guide airflow to be discharged along a smooth path, and the residence time of the airflow at the top of equipment is shortened.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of air purification treatment equipment, in particular to air purification treatment equipment for a construction site. BACKGROUND

[0002] During the construction process, air pollution mainly comes from two core scenes of dust emission and harmful gas release: first, earth excavation, blasting operation, concrete mixing, material transportation (such as the driving of a slag car) and the like can produce a large amount of PM10 and PM2.5 dust. Data shows that the PM10 concentration in the air around an open construction site can reach 3-5 times the national standard, and the instantaneous concentration of some blasting operations can even exceed 10 times; second, welding operations can release ozone and nitrogen oxides, and paint spraying and corrosion treatment can volatilize harmful gases such as formaldehyde and benzene series. These pollutants not only irritate the respiratory tract of construction personnel, but also spread to surrounding residential areas with air flow, causing environmental problems such as haze and odor, and causing double threats to public health and ecological environment.

[0003] The pollution concentration, operation type and space environment of a construction site are in dynamic change, and a fixed exhaust volume cannot adapt to all scenes. In a low pollution scene, the equipment still operates at a high exhaust volume, which can cause a large amount of energy to be wasted, and the fixed exhaust volume can continuously damage the core components of the equipment and reduce the service life. SUMMARY

[0004] To achieve the above purpose, the application is implemented by the following technical scheme: an air purification treatment equipment for a construction site, comprising a shell, a fan fixedly connected inside the shell; A protection assembly is fixedly installed on the bottom outer side of the shell, and the protection assembly is threadedly connected with the shell. A filter assembly is fixedly installed on the bottom of the shell, the bottom of the filter assembly is fixedly connected with a bottom plate, and the end of the protection assembly away from the shell is threadedly connected with the bottom plate. The shell comprises a cylinder, the top inner side of the cylinder is provided with an inclined edge, the inner wall of the cylinder close to the inclined edge is fixedly connected with a fixed ring, the inner wall of the fixed ring is rotatably connected with a rotating assembly, the end of the rotating assembly away from the fixed ring is rotatably connected with an intermediate ring, the number of the rotating assemblies is multiple, and the multiple rotating assemblies are uniformly distributed around the intermediate ring. Preferably, the rotating assembly includes a rotating shaft, with its two ends rotatably connected to a fixed ring and an intermediate ring, respectively. When the fan operates, air enters the interior of the cylinder through the bottom filter assembly and exits from the top of the cylinder. The bottom air intake and top exhaust form a vertically rising airflow, making the flow path of dust-laden gas or waste gas within the equipment more stable and uniform, avoiding local airflow short-circuiting, and reducing the risk of untreated gas being directly discharged. Furthermore, a guide plate is installed inside the top outlet of the cylinder. The inclined surface of the guide plate can guide the airflow to exit along a smooth path, replacing the vortex dead angles that are easily formed in the vertical plane, reducing the residence time of the airflow at the top of the equipment, reducing the resistance loss of the fan operation, and indirectly saving energy. A guide plate is fixedly connected to the outside of the rotating shaft.

[0005] Preferably, a lifting assembly is slidably connected to the top of the housing, an electric push rod is fixedly connected inside the housing, the output end of the electric push rod is fixedly connected to the lifting assembly, a motor is fixedly connected inside the housing near the electric push rod, the motor is located below the electric push rod, and the output end of the motor is fixedly connected to the fan.

[0006] Preferably, a guide plate is fixedly connected to the inner wall of the inclined side, and multiple guide plates are evenly distributed on the inclined side. A fixed cylinder is fixedly connected to the inner wall of the cylinder, located below the fixed ring. A magnetic block is fixedly connected to the top of the fixed cylinder near the fixed ring, and multiple magnetic blocks are evenly distributed on the fixed cylinder. A flow guide ring is fixedly connected to the inner wall of the cylinder. In the initial state, under the action of the mutual repulsion between the cylinder and the magnetic ring and the mutual attraction between the fixed rod and the magnetic block, the intermediate plate drives the guide plate to a horizontal state through the rotating shaft. During operation, the motor is powered by an external power source. This causes the motor to drive the fan, allowing outside air to enter the filter assembly through the protective components. The air then flows upwards, at which point the electric actuator pushes the arc-shaped plate upwards, increasing the distance between the cylinder and the arc-shaped plate. This allows air to escape through the gap. The distance between the top of the cylinder and the arc-shaped plate can be adjusted by moving the electric actuator, thus precisely controlling the exhaust volume. When the distance is increased, the flow area at the top of the cylinder increases, enhancing the equipment's exhaust capacity and quickly removing high-concentration polluted air, preventing dust and odors from accumulating in the construction area. When the air volume is reduced, the exhaust volume decreases accordingly. This reduces fan energy consumption in scenarios with low pollution concentrations, while preventing significant fluctuations in temperature and humidity in the construction area due to excessive exhaust. It balances purification effectiveness with energy-saving requirements, adapting to the varying ventilation needs at different stages of construction. Furthermore, adjusting the interval can balance internal pressure. When filter components become clogged, causing internal pressure to rise, increasing the interval between the arc plate and the cylinder increases the exhaust channel cross-sectional area, reduces exhaust resistance, and restores normal internal pressure. This prevents fan malfunctions such as reduced speed or overheating due to excessive pressure. Conversely, if the initial filtration... If the airflow is smooth and the internal pressure is too low, adjusting the interval can appropriately increase the exhaust resistance, maintain a stable negative pressure environment inside the equipment, and avoid airflow short-circuiting and incomplete purification. A conical ring is fixedly connected to the inner wall of the cylinder near the guide ring. The conical ring is located at the end of the cylinder away from the inclined side and is fixedly connected to the guide ring. The guide ring is located above the conical ring. The fan is located at the interval between the fixed cylinder and the guide ring. There are multiple baffles fixedly connected to the inner wall of the fixed cylinder. The multiple baffles are evenly distributed around the middle ring. The electric push rod and motor are located on the inner side of the baffle away from the fixed cylinder.

[0007] Preferably, an intermediate plate is fixedly connected to the outer side of the rotating shaft near the fixed ring. A cylinder is fixedly connected to the end of the intermediate plate away from the guide plate. The cylinder is magnetic. A fixed rod is fixedly connected to the end of the intermediate plate away from the cylinder. When the motor is powered by an external power source, it drives the fan to work, allowing outside air to enter the interior of the filter assembly through the protective assembly. The air then flows upward, and at this time, the electric actuator pushes the arc plate upward, increasing the distance between the cylinder and the arc plate. The magnetic ring moves away from the cylinder. Under the mutual attraction between the fixed rod and the magnetic block, the intermediate plate drives the rotating shaft and the guide plate to rotate, causing the guide plate to be in an inclined state. The fixed rod and the cylinder are located at both ends of the intermediate plate, with the cylinder above the fixed ring and the fixed rod below the fixed ring. The fixed rod is magnetic, and the magnetic properties between the fixed rod and the magnetic block are opposite.

[0008] Preferably, the lifting assembly includes an arc-shaped plate with an extension rod at the bottom center. The arc-shaped plate is fixedly connected to the output end of the electric actuator via the extension rod. The bottom edge of the arc-shaped plate is set as a bevel, and multiple round rods are fixedly connected to the surface of the bevel. These round rods are evenly distributed on the bevel. The arc-shaped plate is located on the top inner side of the cylinder, and the bevel of the arc-shaped plate is parallel to the inclined edge of the cylinder. Construction work is mostly carried out outdoors, and the top of the exhaust vent at the top of the cylinder needs to withstand the effects of wind, rain, and dust accumulation. The curved surface design of the arc-shaped plate itself has the function of guiding airflow, which can disperse the lateral wind force to the arc-shaped surface and reduce the impact of wind on the equipment. When the arc plate is closed, the guide plate is located inside the inclined groove. At this time, the parallel contact surface of the inclined side and the inclined edge can further optimize the top stress structure and avoid deformation and loosening caused by concentrated wind on the vertical contact surface. At the same time, the inclined angle can guide dust and rainwater to slide naturally down the inclined surface of the arc plate, preventing dust from accumulating at the top and reducing the frequency of equipment maintenance. The end of the round rod away from the arc plate is slidably connected to the cylinder. The surface of the inclined side is provided with an inclined groove, and the guide plate is located inside the inclined groove. There are multiple inclined grooves, which are evenly arranged on the inclined side, and the inclined grooves and the round rod are staggered. A magnetic ring is fixedly connected to the bottom of the arc plate, and the magnetic ring and the cylinder have the same magnetism.

[0009] Preferably, the protective component includes a connecting ring, which is threaded to the bottom outer side of the cylinder. A protective plate is fixedly connected to the outer side of the connecting ring. When multiple protective plates are spliced ​​into a ring through the connecting rings and positioning rings at both ends, the trapezoidal isosceles symmetrical structure of the protective plate can evenly distribute the force to each plate. Furthermore, the hypotenuse of the trapezoid can effectively buffer external impacts and reduce local stress concentration. At the same time, the overall ring structure has circumferential force balance characteristics, which can convert single-point impact force into a uniformly distributed load on the ring surface, improve the deformation resistance, adapt to the complex external force scenarios of construction sites, and ensure the long-term stable operation of the protective component. There are multiple protective plates, which are evenly distributed on the connecting ring. The protective plates are trapezoidal in shape, and a positioning ring is fixedly connected to the end of the protective plate away from the connecting ring. The positioning ring is threaded to the bottom plate. The protective plate is located on the outer side of the filter component.

[0010] Preferably, the filter assembly includes a filter screen with a connecting plate at its bottom. The connecting plate at the bottom of the filter screen is fixedly connected to the top of a base plate. A limiting ring is fixedly connected to the top of the filter screen, and a square plate is fixedly connected to the limiting ring near the bottom of the filter screen. The square plate contacts the inner wall of the filter screen. There are multiple square plates, which are evenly distributed on the inner wall of the filter screen. Outside air enters the device through the gap between two adjacent protective plates, and then passes through the filter screen for preliminary filtration. The pre-filtered air inside the filter screen then enters the interior of the conical cylinder through a square hole on the side of the conical cylinder. Finally, the air inside the conical cylinder... Air enters the interior of the conical cylinder through the round hole at the top. The multi-layered bending design extends the air's residence time within the equipment. The air passes through multiple filtration layers, including the filter screen and the conical cylinder, achieving multi-layer filtration and effectively reducing the dust concentration in the exhaust air to meet the environmental emission requirements of the construction site. A conical cylinder is fixedly connected to the top center of the connecting plate at the bottom of the filter screen. The top of the conical cylinder has a round hole, and the sides have multiple square holes. A positioning plate is installed between the conical cylinder and the filter screen, contacting the outer wall of the conical cylinder and the inner wall of the filter screen. A ring plate is fixedly connected to the top of the square plate.

[0011] This invention provides an air purification device for construction sites. It has the following beneficial effects: 1. The air purification equipment used at the construction site forms a vertical upward airflow through bottom air intake and top exhaust, making the flow path of dust-laden gas or exhaust gas within the equipment more stable and uniform, avoiding local airflow short-circuiting, reducing the risk of untreated gas being directly discharged, and the internal guide plate at the top exhaust outlet of the cylinder is equipped with a guide plate. The inclined surface of the guide plate can guide the airflow to discharge along a smooth path, replacing the vortex dead angle that is easily formed in the vertical plane, reducing the residence time of airflow at the top of the equipment, reducing the resistance loss of the fan operation, and indirectly saving energy consumption.

[0012] 2. The air purification equipment used at the construction site can precisely control the exhaust volume by adjusting the gap between the top of the cylinder and the arc plate through the push of the electric actuator. When the gap is increased, the flow area at the top of the cylinder increases, the exhaust capacity of the equipment is enhanced, and high-concentration polluted air can be quickly discharged to avoid the accumulation of dust and odors in the construction area. When the gap is decreased, the exhaust volume is reduced accordingly, which can reduce fan energy consumption in scenarios with low pollution concentration.

[0013] Third, the air purification equipment used at the construction site, when multiple protective plates are spliced ​​into a ring through connecting and positioning rings at both ends, the trapezoidal isosceles symmetrical structure of the protective plates can evenly distribute the force to each plate, and the hypotenuse of the trapezoid can effectively buffer external impacts and reduce local stress concentration. At the same time, the overall ring structure has circumferential force balance characteristics, which can transform single-point impact force into a uniformly distributed load on the ring surface, improve the deformation resistance, adapt to the complex external force scenarios of the construction site, and ensure the long-term stable operation of the protective components.

[0014] IV. The air purification equipment used at the construction site has a multi-layered bend design, which extends the residence time of air in the equipment. The air must pass through multiple filter layers, including filter screens and cones, to achieve multiple filtration, effectively reducing the dust concentration in the exhaust air and meeting the environmental protection emission requirements of the construction site. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial cross-sectional structural schematic diagram of the present invention; Figure 3 This is a cross-sectional structural schematic diagram of the present invention; Figure 4 This is a schematic diagram of the structure of the housing of the present invention; Figure 5 This is a cross-sectional structural schematic diagram of the housing of the present invention; Figure 6 This is a partial structural schematic diagram of the housing of the present invention; Figure 7 This is a schematic diagram of the rotating assembly of the present invention; Figure 8 This is a schematic diagram of the lifting assembly of the present invention; Figure 9 This is a schematic diagram of the structure of the protective component of the present invention; Figure 10 This is a schematic diagram of the structure of the filter assembly of the present invention; Figure 11 This is a partial structural schematic diagram of the filter component of the present invention.

[0016] In the diagram: 1. Shell; 11. Cylinder; 12. Inclined edge; 13. Guide plate; 14. Fixing ring; 15. Intermediate ring; 16. Rotating assembly; 161. Shaft; 162. Guide plate; 163. Intermediate plate; 164. Cylinder; 165. Fixing rod; 17. Flow guide ring; 18. Conical ring; 19. Magnetic block; 110. Fixing cylinder; 111. Partition plate; 2. Protective assembly; 21. Connecting ring; 22. Positioning ring; 23. Protective plate; 3. Base plate; 4. Filter assembly; 41. Limiting ring; 42. Filter screen; 43. Positioning plate; 44. Ring plate; 45. Conical cylinder; 46. Square hole; 47. Round hole; 48. Square plate; 5. Lifting assembly; 51. Arc plate; 52. Inclined groove; 53. Round rod; 54. Inclined edge; 55. Magnetic ring; 6. Fan; 7. Electric push rod; 8. Motor. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] First embodiment, such as Figures 1 to 7 As shown, the present invention provides a technical solution: an air purification device for construction sites, including a housing 1, with a fan 6 fixedly connected inside the housing 1; Protective component 2 is fixedly installed on the bottom outer side of housing 1 and is threadedly connected to housing 1; The filter assembly 4 is fixedly installed at the bottom of the housing 1. The bottom of the filter assembly 4 is fixedly connected to the base plate 3. The end of the protective assembly 2 away from the housing 1 is threadedly connected to the base plate 3. The shell 1 includes a cylindrical body 11, with an inclined edge 12 on the inner side of the top of the cylindrical body 11. A fixed ring 14 is fixedly connected to the inner wall of the cylindrical body 11 near the inclined edge 12. A rotating assembly 16 is rotatably connected to the inner wall of the fixed ring 14. An intermediate ring 15 is rotatably connected to the end of the rotating assembly 16 away from the fixed ring 14. There are multiple rotating assemblies 16, which are evenly distributed around the intermediate ring 15. The rotating assembly 16 includes a rotating shaft 161, with both ends of the rotating shaft 161 rotatably connected to a fixed ring 14 and an intermediate ring 15, respectively. When the fan 6 operates, air enters the interior of the cylinder 11 through the bottom filter assembly 4 and exits from the top of the cylinder 11. The bottom air intake and top exhaust form a vertical upward airflow, making the flow path of dust-laden gas or exhaust gas within the equipment more stable and uniform, avoiding local airflow short circuits, and reducing the risk of untreated gas being directly discharged. Furthermore, a guide plate 162 is installed inside the top outlet of the cylinder 11. The inclined surface of the guide plate 162 can guide the airflow to exit along a smooth path, replacing the vortex dead angles that are easily formed in the vertical plane, reducing the residence time of the airflow at the top of the equipment, reducing the resistance loss of the fan 6, and indirectly saving energy. The guide plate 162 is fixedly connected to the outside of the rotating shaft 161.

[0019] A lifting assembly 5 is slidably connected to the top of the housing 1. An electric push rod 7 is fixedly connected inside the housing 1. The output end of the electric push rod 7 is fixedly connected to the lifting assembly 5. A motor 8 is fixedly connected inside the housing 1 near the electric push rod 7. The motor 8 is located below the electric push rod 7. The output end of the motor 8 is fixedly connected to the fan 6.

[0020] A guide plate 13 is fixedly connected to the inner wall of the inclined edge 12. Multiple guide plates 13 are evenly distributed on the inclined edge 12. A fixed cylinder 110 is fixedly connected to the inner wall of the cylinder 11, located below the fixed ring 14. A magnetic block 19 is fixedly connected to the top of the fixed cylinder 110 near the fixed ring 14. Multiple magnetic blocks 19 are evenly distributed on the fixed cylinder 110. A flow guide ring 17 is fixedly connected to the inner wall of the cylinder 11. In the initial state, under the action of the mutual repulsion between the cylinder 164 and the magnetic ring 55 and the mutual attraction between the fixed rod 165 and the magnetic block 19, the intermediate plate 163 drives the guide plate through the rotating shaft 161. When the filter is in a horizontal position, the motor 8, powered by an external power source, drives the fan 6. This allows outside air to enter the filter assembly 4 through the protective component 2. The air then flows upwards, and the electric actuator 7 pushes the arc-shaped plate 51 upwards, increasing the distance between the cylinder 11 and the arc-shaped plate 51. This allows air to escape through the gap. The distance between the top of the cylinder 11 and the arc-shaped plate 51 can be adjusted by moving the electric actuator 7, thus precisely controlling the exhaust volume. When the distance is increased, the flow area at the top of the cylinder 11 increases, enhancing the equipment's exhaust capacity and enabling the rapid removal of high-concentration polluted air, preventing dust and odors from escaping. When pollution accumulates in the work area, reducing the interval decreases the exhaust volume, thus reducing fan energy consumption in low-concentration environments. This also prevents significant fluctuations in temperature and humidity in the work area due to excessive exhaust, balancing purification effectiveness with energy efficiency. It adapts to the varying ventilation requirements at different stages of construction. Furthermore, adjusting the interval can balance internal pressure. When filter component 4 becomes clogged, causing increased internal pressure, increasing the interval between the arc plate 51 and the cylinder 11 increases the exhaust channel cross-sectional area, reduces exhaust resistance, and restores normal internal pressure. This prevents fan 6 from experiencing speed reduction or overheating due to excessive pressure. Conversely, if airflow is smooth after primary filtration and internal pressure is too low, reducing the interval... The interval can be appropriately increased to increase the exhaust resistance, maintain a stable negative pressure environment inside the equipment, and avoid airflow short circuit and incomplete purification. A conical ring 18 is fixedly connected to the inner wall of the cylinder 11 near the guide ring 17. The conical ring 18 is located at the end of the cylinder 11 away from the inclined edge 12. The conical ring 18 is fixedly connected to the guide ring 17. The guide ring 17 is located above the conical ring 18. The fan 6 is located at the interval between the fixed cylinder 110 and the guide ring 17. A partition 111 is fixedly connected to the inner wall of the fixed cylinder 110. There are multiple partitions 111. The multiple partitions 111 are evenly distributed around the middle ring 15. The electric push rod 7 and the motor 8 are located on the inner side of the partition 111 away from the fixed cylinder 110.

[0021] An intermediate plate 163 is fixedly connected to the outer side of the rotating shaft 161 near the fixed ring 14. A cylinder 164 is fixedly connected to the end of the intermediate plate 163 away from the guide plate 162. The cylinder 164 is magnetic. A fixed rod 165 is fixedly connected to the end of the intermediate plate 163 away from the cylinder 164. The motor 8 is powered by an external power source, which drives the fan 6 to work. As a result, outside air enters the interior of the filter assembly 4 through the protective assembly 2. The air then flows upward. At this time, the electric push rod 7 works to push the arc plate 51 to move upward, causing the cylinder 1 to... As the distance between the cylinder 164 and the arc plate 51 increases, the magnetic ring 55 moves away from the cylinder 164. At this time, under the mutual attraction between the fixed rod 165 and the magnetic block 19, the intermediate plate 163 drives the rotating shaft 161 and the guide plate 162 to rotate, so that the guide plate 162 is in an inclined state. The fixed rod 165 and the cylinder 164 are located at both ends of the intermediate plate 163. The cylinder 164 is located above the fixed ring 14, and the fixed rod 165 is located below the fixed ring 14. The fixed rod 165 is magnetic, and the magnetic properties between the fixed rod 165 and the magnetic block 19 are opposite.

[0022] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figure 8 As shown, the lifting assembly 5 includes an arc-shaped plate 51. An extension rod is provided at the middle of the bottom of the arc-shaped plate 51. The arc-shaped plate 51 is fixedly connected to the output end of the electric push rod 7 through the extension rod. The bottom edge of the arc-shaped plate 51 is set as a bevel 54. A round rod 53 is fixedly connected to the surface of the bevel 54. There are multiple round rods 53, which are evenly distributed on the bevel 54. The arc-shaped plate 51 is located on the inner side of the top of the cylinder 11. The bevel 54 of the arc-shaped plate 51 is set parallel to the inclined edge 12 of the cylinder 11. Construction is mostly carried out in the open air. The top of the exhaust port at the top of the cylinder 11 needs to withstand the effects of wind, rain and dust accumulation. The curved surface design of the arc-shaped plate 51 itself has the function of guiding the air load, which can disperse the lateral wind force to the arc-shaped surface and reduce the impact of the wind on the equipment. When 51 is closed, the guide plate 13 is located inside the inclined groove 52. At this time, the parallel contact surfaces of the inclined side 54 and the inclined edge 12 can further optimize the top stress structure and avoid deformation and loosening of the vertical contact surface due to concentrated wind. At the same time, the tilt angle can guide dust and rainwater to slide naturally down the inclined surface of the arc plate 51, preventing dust from accumulating at the top and reducing the frequency of equipment maintenance. The end of the round rod 53 away from the arc plate 51 is slidably connected to the cylinder 11. The surface of the inclined side 54 is provided with an inclined groove 52. The guide plate 13 is located inside the inclined groove 52. There are multiple inclined grooves 52, which are evenly arranged on the inclined side 54. The inclined grooves 52 and the round rod 53 are staggered. A magnetic ring 55 is fixedly connected to the bottom of the arc plate 51. The magnetic ring 55 and the cylinder 164 have the same magnetism.

[0023] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 9 to 11As shown, the protective component 2 includes a connecting ring 21, which is threaded to the bottom outer side of the cylinder 11. A protective plate 23 is fixedly connected to the outer side of the connecting ring 21. When multiple protective plates 23 are spliced ​​into a ring through the connecting rings 21 and positioning rings 22 at both ends, the trapezoidal isosceles symmetrical structure of the protective plate 23 can evenly distribute the force to each plate, and the hypotenuse of the trapezoid can effectively buffer external impacts and reduce local stress concentration. At the same time, the overall ring structure has circumferential force balance characteristics, which can convert single-point impact force into a uniformly distributed load on the ring surface, improve the deformation resistance, adapt to the complex external force action scenarios of construction sites, and ensure the long-term stable operation of the protective component. There are multiple protective plates 23, which are evenly distributed on the connecting ring 21. The protective plate 23 is trapezoidal. A positioning ring 22 is fixedly connected to the end of the protective plate 23 away from the connecting ring 21. The positioning ring 22 is threaded to the bottom plate 3. The protective plate 23 is located on the outer side of the filter component 4.

[0024] The filter assembly 4 includes a filter screen 42. A connecting plate is provided at the bottom of the filter screen 42, and the connecting plate at the bottom of the filter screen 42 is fixedly connected to the top of the base plate 3. A limiting ring 41 is fixedly connected to the top of the filter screen 42. A square plate 48 is fixedly connected to the limiting ring 41 near the bottom of the filter screen 42. The square plate 48 contacts the inner wall of the filter screen 42. There are multiple square plates 48, which are evenly distributed on the inner wall of the filter screen 42. Outside air enters the device through the gap between two adjacent protective plates 23, and then passes through the filter screen 42 for preliminary filtration. The pre-filtered air inside the filter screen 42 then enters the interior of the conical cylinder 45 through the square hole 46 on the side of the conical cylinder 45. Finally, the air inside the conical cylinder 45... Air enters the interior of the cylinder 11 through the round hole 47 at the top of the conical cylinder 45. The multi-layer bending design extends the residence time of air in the equipment. The air must pass through multiple filtration layers of the filter screen 42 and the conical cylinder 45 to achieve multiple filtration, effectively reducing the dust concentration of the exhaust air and meeting the environmental protection emission requirements of the construction site. The conical cylinder 45 is fixedly connected to the top middle of the connecting plate at the bottom of the filter screen 42. The top of the conical cylinder 45 has a round hole 47, and the sides of the conical cylinder 45 have square holes 46. There are multiple square holes 46. A positioning plate 43 is provided at the interval between the conical cylinder 45 and the filter screen 42. The positioning plate 43 contacts the outer wall of the conical cylinder 45 and the inner wall of the filter screen 42. A ring plate 44 is fixedly connected to the top of the square plate 48.

[0025] When in use, the fan 6 operates, and outside air enters the equipment through the gap between two adjacent protective plates 23. The air then passes through the filter screen 42 for preliminary filtration. Subsequently, the pre-filtered air inside the filter screen 42 enters the interior of the conical cylinder 45 through the square hole 46 on the side of the conical cylinder 45. Finally, the air inside the conical cylinder 45 enters the interior of the cylinder body 11 through the round hole 47 at the top of the conical cylinder 45.

[0026] When the motor 8 is powered by an external power source, it drives the fan 6 to operate, allowing outside air to enter the filter assembly 4 through the protective assembly 2. The air then flows upward, at which point the electric push rod 7 pushes the arc plate 51 upward, increasing the distance between the cylinder 11 and the arc plate 51. The magnetic ring 55 moves away from the cylinder 164. Under the mutual attraction between the fixed rod 165 and the magnetic block 19, the intermediate plate 163 drives the rotating shaft 161 and the guide plate 162 to rotate, causing the guide plate 162 to be tilted, allowing the filtered air to be discharged from the top of the cylinder 11.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air purification and treatment device for construction sites, characterized in that, include: Housing (1), and a fan (6) is fixedly connected inside the housing (1); The protective component (2) is fixedly installed on the bottom outer side of the housing (1) and is threadedly connected to the housing (1); The filter assembly (4) is fixedly installed at the bottom of the housing (1), and the bottom of the filter assembly (4) is fixedly connected to the base plate (3). The end of the protective assembly (2) away from the housing (1) is threadedly connected to the base plate (3). The shell (1) includes a cylindrical body (11), the inner side of the top of the cylindrical body (11) is provided with an inclined side (12), a fixed ring (14) is fixedly connected to the inner wall of the cylindrical body (11) near the inclined side (12), a rotating assembly (16) is rotatably connected to the inner wall of the fixed ring (14), and an intermediate ring (15) is rotatably connected to one end of the rotating assembly (16) away from the fixed ring (14). There are multiple rotating assemblies (16), and the multiple rotating assemblies (16) are evenly distributed around the intermediate ring (15). The rotating assembly (16) includes a rotating shaft (161), the two ends of which are rotatably connected to a fixed ring (14) and an intermediate ring (15) respectively, and a guide plate (162) is fixedly connected to the outer side of the rotating shaft (161).

2. The air purification equipment for construction sites according to claim 1, characterized in that: A lifting assembly (5) is slidably connected to the top of the housing (1). An electric push rod (7) is fixedly connected inside the housing (1). The output end of the electric push rod (7) is fixedly connected to the lifting assembly (5). A motor (8) is fixedly connected inside the housing (1) near the electric push rod (7). The motor (8) is located below the electric push rod (7). The output end of the motor (8) is fixedly connected to the fan (6).

3. The air purification equipment for construction sites according to claim 2, characterized in that: A guide plate (13) is fixedly connected to the inner wall of the inclined side (12). There are multiple guide plates (13) evenly distributed on the inclined side (12). A fixed cylinder (110) is fixedly connected to the inner wall of the cylinder (11). The fixed cylinder (110) is located below the fixed ring (14). A magnetic block (19) is fixedly connected to the top of the fixed cylinder (110) near the fixed ring (14). There are multiple magnetic blocks (19) evenly distributed on the fixed cylinder (110). A flow guide ring (17) is fixedly connected to the inner wall of the cylinder (11). A conical ring (18) is fixedly connected to the inner wall of the cylinder (11) near the flow guide ring (17). The conical ring (18) is located at the end of the cylinder (11) away from the inclined side (12).

4. An air purification and treatment device for construction sites according to claim 3, characterized in that: The conical ring (18) is fixedly connected to the guide ring (17), the guide ring (17) is located above the conical ring (18), the fan (6) is located at the interval between the fixed cylinder (110) and the guide ring (17), the inner wall of the fixed cylinder (110) is fixedly connected to a partition (111), there are multiple partitions (111), the multiple partitions (111) are evenly distributed around the middle ring (15), the electric push rod (7) and the motor (8) are located on the inner side of the partition (111) away from the fixed cylinder (110).

5. An air purification and treatment device for construction sites according to claim 1, characterized in that: An intermediate plate (163) is fixedly connected to the outer side of the rotating shaft (161) near the fixed ring (14). A cylinder (164) is fixedly connected to one end of the intermediate plate (163) away from the guide plate (162). The cylinder (164) is magnetic. A fixing rod (165) is fixedly connected to one end of the intermediate plate (163) away from the cylinder (164). The fixing rod (165) and the cylinder (164) are located at both ends of the intermediate plate (163). The cylinder (164) is located above the fixed ring (14), and the fixing rod (165) is located below the fixed ring (14). The fixing rod (165) is magnetic, and the magnetic properties of the fixing rod (165) are opposite to those of the magnetic block (19).

6. An air purification and treatment device for a construction site according to claim 3, characterized in that: The lifting assembly (5) includes an arc plate (51), an extension rod is provided at the middle of the bottom of the arc plate (51), the arc plate (51) is fixedly connected to the output end of the electric push rod (7) through the extension rod, the bottom edge of the arc plate (51) is set as a bevel (54), a round rod (53) is fixedly connected to the surface of the bevel (54), there are multiple round rods (53), the multiple round rods (53) are evenly distributed on the bevel (54), the arc plate (51) is located on the inner side of the top of the cylinder (11), the bevel (54) of the arc plate (51) is set parallel to the inclined side (12) of the cylinder (11).

7. An air purification and treatment device for a construction site according to claim 6, characterized in that: The end of the round rod (53) away from the arc plate (51) is slidably connected to the cylinder (11). The surface of the inclined side (54) is provided with an inclined groove (52). The guide plate (13) is located inside the inclined groove (52). There are multiple inclined grooves (52). The multiple inclined grooves (52) are evenly arranged on the inclined side (54). The inclined grooves (52) and the round rod (53) are staggered. A magnetic ring (55) is fixedly connected to the bottom of the arc plate (51). The magnetic ring (55) has the same magnetism as the cylinder (164).

8. An air purification and treatment device for construction sites according to claim 1, characterized in that: The protective component (2) includes a connecting ring (21), which is threaded to the bottom outer side of the cylinder (11). A protective plate (23) is fixedly connected to the outer side of the connecting ring (21). There are multiple protective plates (23), which are evenly distributed on the connecting ring (21). The protective plate (23) is trapezoidal. A positioning ring (22) is fixedly connected to the end of the protective plate (23) away from the connecting ring (21). The positioning ring (22) is threaded to the bottom plate (3). The protective plate (23) is located on the outside of the filter component (4).

9. An air purification and treatment device for construction sites according to claim 1, characterized in that: The filter assembly (4) includes a filter screen (42). The bottom of the filter screen (42) is provided with a connecting plate. The connecting plate at the bottom of the filter screen (42) is fixedly connected to the top of the base plate (3). A limiting ring (41) is fixedly connected to the top of the filter screen (42). A square plate (48) is fixedly connected to the limiting ring (41) near the bottom of the filter screen (42). The square plate (48) is in contact with the inner wall of the filter screen (42). There are multiple square plates (48), and the multiple square plates (48) are evenly distributed on the inner wall of the filter screen (42).

10. An air purification and treatment device for a construction site according to claim 9, characterized in that: A conical cylinder (45) is fixedly connected to the top middle of the connecting plate at the bottom of the filter screen (42). A round hole (47) is opened at the top of the conical cylinder (45), and a square hole (46) is opened on the side of the conical cylinder (45). There are multiple square holes (46). A positioning plate (43) is provided at the interval between the conical cylinder (45) and the filter screen (42). The positioning plate (43) contacts the outer wall of the conical cylinder (45) and the inner wall of the filter screen (42). A ring plate (44) is fixedly connected to the top of the square plate (48).

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