Spraying device for flying dust on construction site

Abstract

The invention relates to a construction site raised dust spraying device which comprises a spraying column, a cavity is formed in the spraying column, a spraying assembly is arranged in the cavity and comprises a water tank, a water supply pipe is arranged on the water tank in a communicating mode, a water supply pump is arranged on the water supply pipe in a communicating mode, and a plurality of rotating seats are evenly arranged on the peripheral side of the spraying column at equal intervals. Mounting plates are rotationally connected to the rotating seat, each mounting plate is provided with a spraying pipe, each spraying pipe is communicated with a water supply pipe through a corrugated pipe, an adjusting assembly and a driving assembly are arranged on the spraying column, and the driving assembly drives the adjusting assembly to conduct self-adaptive adjustment on the spraying range of the spraying pipes along with the dust falling range. The device has the effect of improving the dust falling treatment effect.

Description

Technical Field

[0001] This application relates to the technical field of spraying, and in particular to a dust spraying device for construction sites. Background Art

[0002] Construction refers to the production activities of completing the physical construction of buildings through various civil, structural and decorative operations during the implementation stage of project construction. At the construction site, construction operations such as earth excavation, material transportation and mechanical crushing are likely to induce a large amount of dust, forming local dust pollution sources. Such dust has the characteristics of strong diffusibility and long suspension period, which not only deteriorates the working environment, reduces the visibility of workers, affects construction efficiency and personnel health, but also causes the escape of fine particulate matter, posing a continuous pollution threat to the surrounding ecological environment. Therefore, it is necessary to carry out dust reduction treatment on the construction site to prevent dust generation.

[0003] In the prior art, a spraying device is often used to spray water mist to carry out dust reduction treatment for preventing dust at the construction site. However, the spraying range of the existing spraying device is fixed, usually only spraying within a single range, and cannot be adaptively adjusted according to the dynamic changes of the construction area. As a result, when actually used, the spraying range of the water mist is small, there are a large number of dust reduction blind areas, and the dust reduction treatment effect is relatively poor, with obvious deficiencies. Summary of the Invention

[0004] In order to improve the dust reduction effect, this application provides a dust spraying device for construction sites.

[0005] The dust spraying device for construction sites provided by this application adopts the following technical solutions: A dust spraying device for construction sites includes a spraying column. A cavity is formed in the spraying column, and a spraying assembly is arranged in the cavity. The spraying assembly includes a water tank, a water supply pipe is connected to the water tank, a water supply pump is connected to the water supply pipe. A plurality of rotating seats are evenly arranged at equal intervals on the outer peripheral side of the spraying column. An installation plate is rotatably connected to the rotating seat. Each installation plate is provided with a spraying pipe. A plurality of spray heads are evenly arranged at equal intervals along the length direction of each spraying pipe. Each spraying pipe is connected to the water supply pipe through a corrugated pipe. An adjusting assembly for driving the plurality of installation plates to rotate synchronously around the rotating seat is arranged on the spraying column.

[0006] By adopting the above technical solution, when the required dust suppression range is large, the adjusting component drives multiple mounting plates to rotate around the rotating seat in a direction away from the ground. At this time, the angle between the length direction of the spray pipe and the axis direction of the spray column increases, so that the spray range of the spray pipe increases to adapt to a larger dust suppression range, reducing the occurrence of dust suppression blind areas and improving the dust suppression treatment effect; when the required dust suppression range is small, the adjusting component drives multiple mounting plates to rotate in a direction close to the ground, and the angle between the spray pipe and the axis direction of the spray column becomes smaller, so that the spray range of the spray pipe is concentrated within a smaller dust suppression range, increasing the spray volume per unit area and thus improving the dust suppression effect; the setting of the adjusting component realizes the adaptive adjustment of the spray range of the spray pipe with the dust suppression range, improving the dust suppression treatment effect.

[0007] Optionally, the adjusting component includes a threaded column rotatably connected in the cavity. The outer surface of the threaded column is threadedly connected with a driving ring. The driving ring is slidably connected inside the cavity. The outer peripheral side of the driving ring is hinged with driving rods corresponding to the multiple mounting plates one by one. The spray column is provided with an adjusting groove slidably matched with the driving rods. The end of each driving rod away from the driving ring is hinged on the mounting plate. The spray column is provided with a driving component for driving the threaded column to rotate.

[0008] By adopting the above technical solution, during adjustment, the driving component drives the threaded column to rotate in the cavity. Under the limitation of the adjusting groove, the rotation of the threaded column drives the multiple driving rods to synchronously lift along the length direction of the spray column. During the lifting process, the driving rods drive the multiple mounting plates to rotate synchronously around the rotating seat, thereby realizing the adjustment of the spray range of the spray pipe.

[0009] Optionally, the driving component includes an external gear ring fixedly sleeved on the outer surface of the threaded column. The spray column is provided with a groove rotatably matched with the external gear ring. The outer surface of the spray column is provided with an equipment box communicated with the groove. A rotating motor is arranged in the equipment box. The output shaft of the rotating motor is coaxially provided with a gear meshing with the external gear ring.

[0010] By adopting the above technical solution, when the area of the required dust suppression range is changed, the user controls the rotation amount of the rotating motor through the control system. The rotation of the rotating motor drives the gear to rotate. The rotation of the gear drives the external gear ring to rotate. The rotation of the external gear ring drives the threaded column to rotate in the cavity at a preset value, thereby realizing the change of the spray range. The setting of the driving component realizes the automatic adjustment of the change of the spray range. At the same time, the setting of the equipment box physically isolates the components of the driving component from the external dust environment, ensuring the long-term stable operation of the driving component under the high-humidity and high-dust working conditions at the construction site.

[0011] Optionally, a base plate is provided inside the spray column, the water tank is arranged on the base plate, a piston block is slidably arranged inside the water tank, the upper and lower surfaces of the piston block respectively enclose a water supply area and a pressurization area with the inner side wall of the water tank, the water supply pipe is internally communicated with the water supply area, a gas is filled in the pressurization area, and a pressurization component for driving the pressure in the pressurization area to increase is arranged in the cavity.

[0012] By adopting the above technical solution, when encountering strong wind weather, the pressurization component drives the pressure in the pressurization area to rise. The pressure difference between the pressurization area and the water supply area drives the piston block to move towards the water supply area. When the piston block moves, the water resources in the water supply area are compressed, thereby providing an additional driving force for the flow of water, achieving the effect of pressurizing the water flow. After the pressurized water flow is ejected, it has stronger kinetic energy, thereby reducing the influence of the wind on the water spray trajectory and ensuring the stability of the spray range. At the same time, after the water flow is pressurized, the water flow rate between the water supply area and the spray pipe increases, and the amount of water ejected from the spray pipe per unit time increases, thereby reducing the dust in the air more quickly during strong wind weather and improving the dust removal treatment effect.

[0013] Optionally, the pressurization component includes a pressurization airbag arranged in the cavity. The pressurization airbag is arranged at the end of the base plate away from the water tank. The pressurization airbag is annular and made of an elastic material. The pressurization airbag is communicated with the pressurization area through an air supply pipe. A guide groove parallel to the length direction of the pressurization airbag is opened on the base plate. A pressing plate is slidably connected in the guide groove. When the pressurization airbag is filled, the pressing plate fits on the outer surface of the pressurization airbag, and a moving component for driving the pressing plate to reciprocate is arranged in the cavity.

[0014] By adopting the above technical solution, when pressurization is required, the moving component drives the pressing plate to move along the guide groove towards the direction close to the pressurization airbag. During the movement of the pressing plate, the pressurization airbag is continuously pressed, so that the gas in the pressurization airbag enters the interior of the pressurization area through the air supply pipe, and the internal air pressure in the pressurization area rises, thereby driving the piston block to move; after one pressurization ends, the moving component drives the pressing plate to move along the guide groove towards the direction away from the pressurization airbag, the pressure received by the pressurization airbag decreases, and the pressurization airbag returns to its original position under the action of its own elastic force. Under the drive of the pressure difference, the gas in the pressurization area flows back to the pressurization airbag until the pressure is balanced.

[0015] Optionally, the moving component includes a driving shaft rotatably connected to the center of the boost airbag, the driving shaft having a spiral groove and a reset groove along the axial direction, the reset groove connecting the head and tail ends of the spiral groove, the extrusion plate being provided with a protrusion slidably connected to the spiral groove and the reset groove, the extrusion plate being slidably mounted on the outer surface of the driving shaft, the outer surface of the spray column near the top being rotatably connected to a fan blade, and the fan blade being transmission-connected to the driving shaft via a sprocket and a chain.

[0016] By adopting the above technical scheme, in strong wind weather, the strong wind blows the fan blade to rotate, and the fan blade drives the drive shaft to rotate through the transmission action of the sprocket and the chain. Under the action of the sliding cooperation between the protrusion and the spiral groove, the extrusion plate moves along the guide groove and continuously squeezes the boost airbag to the maximum compression degree. When the protrusion moves to the connecting point of the spiral groove and the reset groove, a boost operation is completed. At this time, the extrusion force of the extrusion plate on the boost airbag disappears. Driven by the pressure difference and the deformation force of the boost airbag, the protrusion moves rapidly along the reset groove, and the movement of the protrusion drives the extrusion plate to reset to the initial position. As the fan blade continues to rotate, the protrusion moves alternately in the spiral groove and the reset groove, thereby realizing the reciprocating movement of the extrusion plate along the guide groove, and continuously squeezing the boost airbag periodically. The setting of the moving component realizes the automatic triggering of the boost operation in strong wind weather, and at the same time converts wind energy into mechanical kinetic energy for increasing water pressure, which is energy-saving and environmentally friendly.

[0017] Optionally, a water collecting cylinder is provided on the outer surface of the spray column, the opening of the water collecting cylinder is trumpet-shaped, a filter assembly for filtering impurities is provided in the water collecting cylinder, the bottom end of the water collecting cylinder is connected to the water supply area through a water supply pipe, and a valve is provided on the water supply pipe.

[0018] By adopting the above technical solution, when the spray device is running, the water collecting cylinder automatically collects floating water mist and natural precipitation in the air, and stores them in the water collecting cylinder after removing impurities through the filtering component. When water replenishment is needed, the user unscrews the valve to open the water supply pipe, and the water resources in the water collecting cylinder are sent into the water supply area through the water supply pipe to achieve water replenishment. The setting of the collection cylinder realizes the recycling of natural water resources and spray water resources, reduces the need for additional external water resources, and saves water resource loss.

[0019] Optionally, the valve is a solenoid valve, a water level sensor is provided inside the water supply area, and the water level sensor is electrically connected to the solenoid valve through a control system.

[0020] By adopting the above technical solution, when the water level sensor detects that the water level is lower than the threshold value, the control system triggers the solenoid valve to open, and the water resources collected in the water collecting cylinder automatically enter the water supply area. After the water level reaches the standard, the solenoid valve closes to maintain the water volume balance of the system. Such a setting realizes the automatic operation of the water replenishment operation, ensures the continuous and stable operation of the spraying system, and avoids the dust suppression interruption caused by water shortage.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. In the embodiment of the present application, by setting the driving component and the adjusting component, the driving component drives the adjusting component to adaptively adjust the spraying range of the spraying pipe according to the dust suppression range, improving the dust suppression treatment effect; 2. In the embodiment of the present application, by setting the pressurizing component, the pressurizing component drives the pressure in the pressurizing area to increase. The pressure difference between the pressurizing area and the water supply area drives the piston block to move towards the water supply area. When the piston block moves, the water resources in the water supply area are compressed, thereby providing an additional driving force for the flow of water, realizing the water pressure boosting effect. After the water pressure is boosted, the water flow rate between the water supply area and the spraying pipe increases, and the amount of water sprayed by the spraying pipe per unit time increases, improving the dust suppression treatment effect; 3. In the embodiment of the present application, by setting the moving component, the setting of the moving component realizes the automatic triggering of the pressurizing operation in strong wind weather, and at the same time converts the wind energy into mechanical kinetic energy for increasing the water pressure, which is energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the structural schematic diagram of the present application.

[0023] Figure 2 is the sectional view of the cavity in the embodiment of the present application.

[0024] Figure 3 is the sectional view of the water tank in the embodiment of the present application.

[0025] Figure 4 is the structural schematic diagram of the spiral groove and the reset groove in the embodiment of the present application Description of reference numerals: 1. Spray column; 101. Adjustment groove; 102. Groove; 2. Cavity; 3. Base plate; 31. Guide groove; 4. Rotating seat; 41. Mounting plate; 5. Spray assembly; 51. Water tank; 511. Piston block; 512. Water supply area; 513. Pressure boosting area; 52. Water supply pump; 53. Water supply pipe; 54. Bellows; 55. Spray pipe; 6. Adjustment assembly; 61. Threaded column; 62. Driving ring; 63. Driving rod; 7. Driving assembly; 71. Equipment box; 72. Rotating motor; 73. Gear; 74. External gear ring; 8. Water collecting cylinder; 81. Water delivery pipe; 82. Solenoid valve; 9. Pressure boosting assembly; 91. Pressure boosting airbag; 92. Air delivery pipe; 93. Extrusion plate; 10. Moving assembly; 1001. Driving shaft; 1002. Blades; 1003. Sprocket one; 1004. Sprocket two; 1005. Chain; 11. Spiral groove; 12. Reset groove. Detailed implementation manners

[0026] The following further describes the present application in detail with reference to the Figures 1-4 accompanying drawings.

[0027] An embodiment of the present application discloses a construction site dust spraying device.

[0028] Referring to Figure 1 and Figure 2 , a construction site dust spraying device includes a spray column 1 installed on the construction site ground surface. The spray column 1 is vertically arranged and internally provided with a cavity 2 for placing equipment. A base plate 3 is fixedly installed inside the cavity 2. A plurality of rotating seats 4 are equidistantly and uniformly installed on the outer peripheral side of the spray column 1. In this embodiment, the number of rotating seats 4 is two, and the two rotating seats 4 are respectively arranged on both sides in the radial direction of the spray column 1. A mounting plate 41 is rotatably connected to each rotating seat 4, and the mounting plate 41 is perpendicular to the axial direction of the spray column 1.

[0029] Referring to Figure 1 and Figure 2, a spray assembly 5 is arranged inside the cavity 2. The spray assembly 5 includes a water tank 51 fixedly installed above the base plate 3. A water supply pump 52 is fixedly installed on the water tank 51. The water inlet end of the water supply pump 52 is communicated with the inside of the water tank 51, and the water outlet end is communicated and installed with a water supply pipe 53. The water supply pipe 53 is coaxially arranged with the spray column 1 and is made of a rigid material. In this embodiment, the water supply pipe 53 can be made in the cavity 2 through a mounting ring. The end of the water supply pipe 53 extends to the top of the cavity 2 and is communicated and installed with a plurality of corrugated pipes 54. Avoidance holes (not shown in the figure) for the corrugated pipes 54 to pass through are formed on the outer surface of the spray column 1. Each corrugated pipe 54 extends to the outer surface of the spray column 1 through the avoidance hole and is communicated and installed with a spray pipe 55. In this embodiment, the spray pipe 55 is made of a rigid material. The spray pipe 55 is installed inside the mounting plate 41. A plurality of spray heads (not shown in the figure) are evenly installed at equal intervals along the length direction of each spray pipe 55. The spraying directions of the plurality of spray heads all face the ground.

[0030] Refer to Figure 1 and Figure 2 , an adjusting assembly 6 is arranged inside the cavity 2. The adjusting assembly 6 is arranged above the corrugated pipe 54. Specifically, the adjusting assembly 6 includes a threaded column 61 rotatably connected inside the cavity 2. The threaded column 61 is coaxially arranged with the spray column 1. A driving ring 62 is threadedly connected to the outer surface of the threaded column 61. The driving ring 62 is slidably arranged inside the cavity 2 in the vertical direction. A driving rod 63 corresponding to each of the plurality of mounting plates 41 is hinged to the outer peripheral side of the driving ring 62. An adjusting groove 101 for sliding cooperation with the driving rod 63 is formed on the spray column 1. The adjusting groove 101 is vertically arranged. The end of each driving rod 63 away from the driving ring 62 is hinged to the end face of the mounting plate 41 facing away from the spray pipe 55.

[0031] Refer to Figure 1 and Figure 2 , a driving assembly 7 is arranged on the spray column 1. Specifically, the driving assembly 7 includes an equipment box 71 fixedly installed on the outer surface of the spray column 1. A rotating motor 72 is fixedly installed inside the equipment box 71. The output shaft of the rotating motor 72 is coaxially and fixedly connected with a gear 73. An external gear ring 74 is fixedly sleeved on the end of the threaded column 61 close to the gear 73. A groove 102 communicated with the equipment box 71 is formed on the outer surface of the spray column 1. The tooth part of the gear 73 passes through the groove 102 and is meshed with the external gear ring 74.

[0032] When the required dust reduction range is large, the rotation motor 72 starts to drive the drive gear 73 to rotate forward. The gear 73 drives the threaded column 61 to rotate forward through meshing with the external gear ring 74. Under the wire limit of the adjustment groove 101, the rotation of the threaded column 61 drives the drive ring 62 to move upward along the vertical direction. The movement of the drive ring 62 drives the two drive rods 63 to move upward synchronously. The drive column pulls the mounting plate 41 to rotate away from the ground around the rotating seat 4. At this time, the angle between the spray pipe 55 and the axis of the spray column 1 increases, so that the spray range of the spray pipe 55 increases to adapt to a larger dust reduction range, reducing the occurrence of dust reduction blind areas and improving the dust reduction treatment effect; When the required dust reduction range is small, the rotation motor 72 starts to drive the drive gear 73 to rotate in the reverse direction. The gear 73 drives the threaded column 61 to rotate in the reverse direction through meshing with the external gear ring 74. The threaded column 61 drives the drive rod 63 to descend through the drive ring 62. At this time, the drive rod 63 pushes the mounting plate 41 to rotate towards the ground. The angle between the spray pipe 55 and the axis direction of the spray column 1 becomes smaller, so that the spray range of the spray pipe 55 is concentrated in a smaller dust reduction range, increasing the spray volume per unit area and thus improving the dust reduction effect. The driving assembly 7 drives the adjusting assembly 6 to adaptively adjust the spray range of the spray pipe 55 according to the dust reduction range, improving the dust reduction treatment effect.

[0033] Refer to Figure 1 and Figure 2 As shown in FIGS. and, a water collecting cylinder 8 is fixedly installed on the outer surface of the spray column 1. The length direction of the water collecting cylinder 8 is parallel to the length direction of the spray column 1. The opening of the water collecting cylinder 8 is in a flared shape. A filtering component (not shown in the figure) for filtering impurities is fixedly installed inside the water collecting cylinder 8. In this embodiment, the filtering component is a filter mesh plate. The bottom end of the water collecting cylinder 8 is communicated and installed with a water delivery pipe 81. The water outlet end of the water delivery pipe 81 penetrates through the outer surface of the spray column 1 and is communicated with the water tank 51. An electromagnetic valve 82 for controlling the opening and closing of the water delivery pipe 81 is fixedly installed on the water delivery pipe 81. A water level sensor (not shown in the figure) for detecting the water level height is fixedly installed inside the water tank 51.

[0034] When the spray device is operating, the water collecting cylinder 8 automatically collects the floating water mist and natural precipitation in the air, removes impurities through the filtering component and stores them in the water collecting cylinder 8. When water replenishment is required, when the water level sensor detects that the water level is lower than the threshold, the control system triggers the electromagnetic valve 82 to open, and the water resources collected in the water collecting cylinder 8 automatically enter the water supply area 512. After the water level reaches the standard, the electromagnetic valve 82 closes. In this way, the recycling of natural water resources and spray water resources is realized, ensuring the continuous and stable operation of the spray system and avoiding the interruption of dust reduction caused by water shortage.

[0035] Refer to Figure 2 and Figure 3A piston block 511 is slidably connected to the inside of the water tank 51. The upper and lower surfaces of the piston block 511 are respectively enclosed with the inner wall of the water tank 51 to form a water supply area 512 and a pressurization area 513. The water supply pipe 53 and the water delivery pipe 81 are both connected to the inside of the water supply area 512. The pressurization area 513 is filled with gas, and a pressurization component 9 is provided in the cavity 2 to increase the pressure in the pressurization area 513.

[0036] When encountering strong wind weather, the boosting component 9 drives the boosting area 513 to increase the pressure, and drives the piston block 511 to move toward the water supply area 512 through the pressure difference between the boosting area 513 and the water supply area 512. When the piston block 511 moves, the water resources in the water supply area 512 are compressed, thereby providing additional driving force for the flow of water and achieving the effect of boosting the water flow. The pressurized water flow has stronger kinetic energy after being sprayed out, thereby reducing the influence of wind force on the water flow injection trajectory and ensuring the stability of the spraying range. At the same time, after the water flow is pressurized, the water flow rate between the water supply area 512 and the spray pipe 55 is increased, so that the amount of water sprayed from the spray pipe 55 per unit time increases, thereby reducing dust in strong wind weather more quickly and improving the dust reduction treatment effect.

[0037] Reference Figure 2 and Figure 3 The boost assembly 9 includes a boost airbag 91 fixedly connected to the inner wall of the cavity 2. The boost airbag 91 is arranged at the end of the base plate 3 away from the water tank 51. The boost airbag 91 is annular and made of elastic material. An air supply pipe 92 connected to the boost area 513 is installed on the boost airbag 91.

[0038] Reference Figure 3 and Figure 4 A guide groove 31 parallel to the length direction of the pressurized airbag 91 is provided on the surface of the base plate 3 facing away from the water tank 51, and an extrusion plate 93 is slidably connected inside the guide groove 31. When the pressurized airbag 91 is inflated, the extrusion plate 93 is attached to the end surface of the pressurized airbag 91 facing away from the inner wall of the cavity 2. A moving component 10 is arranged in the cavity 2, and the moving component 10 drives the extrusion plate 93 to move along the length direction of the guide groove 31 to realize the extrusion of the pressurized airbag 91.

[0039] Reference Figure 3 and Figure 4, the moving component 10 includes a drive shaft 1001 rotatably connected to the center of the pressurizing airbag 91. A spiral groove 11 and a reset groove 12 are formed in the drive shaft 1001 along the axial direction. The reset groove 12 communicates with the head and tail ends of the spiral groove 11. The inner end surface of the pressing plate 93 is fixedly connected with a protrusion (not shown in the figure) slidably connected inside the spiral groove 11 and the reset groove 12. Under the action of the protrusion, the pressing plate 93 is sleeved on the shaft body of the drive shaft 1001 and is slidably matched with the outer surface of the drive shaft 1001. The outer surface of the spray column 1 near the top is rotatably connected with a wind blade 1002. A first sprocket 1003 is coaxially fixedly connected to the rotating shaft of the wind blade 1002. The end of the drive shaft 1001 extends to the outer surface of the spray column 1 and is coaxially fixedly connected with a second sprocket 1004. A chain 1005 is sleeved on the outer surfaces of the first sprocket 1003 and the second sprocket.

[0040] When encountering strong wind weather, the strong wind blows the wind blade 1002 to rotate. The wind blade 1002 drives the drive shaft 1001 to rotate continuously through the transmission of the first sprocket 1003, the second sprocket 1004 and the chain 1005. Under the action of the sliding fit between the protrusion and the spiral groove 11, the pressing plate 93 moves along the guiding groove 31 and continuously presses the pressurizing airbag 91. The gas in the pressurizing airbag 91 enters the inside of the pressurizing area 513 through the air supply pipe 92, thereby realizing the pressurizing effect of the pressurizing component 9 on the water flow. When the pressurizing airbag 91 is compressed to the maximum extent and the protrusion moves to the connection between the spiral groove 11 and the reset groove 12, the limiting effect of the inner side wall of the spiral groove 11 on the protrusion disappears. At this time, the extrusion force on the pressurizing airbag 91 suddenly decreases. Under the push of the pressure difference and the deformation force of the pressurizing airbag 91, the end surface of the pressurizing airbag 91 pushes the pressing plate 93 to quickly reset along the guiding groove 31. At this time, the protrusion resets to the head end of the spiral groove 11 along the reset groove 12. With the continuous rotation of the wind blade 1002, the protrusion alternately moves in the spiral groove 11 and the reset groove 12, thereby realizing the reciprocating movement of the pressing plate 93 along the guiding groove 31 and continuously realizing the periodic extrusion of the pressurizing airbag 91. The setting of the moving component 10 realizes the automatic triggering of the pressurizing operation in strong wind weather, and at the same time converts wind energy into mechanical kinetic energy for increasing water pressure, which is energy-saving and environment-friendly.

[0041] The implementation principle of a construction site dust spraying device in an embodiment of the present application is as follows: When the required dust reduction range is large, the adjusting component 6 drives multiple mounting plates 41 to rotate away from the ground around the rotating seat 4. At this time, the angle between the length direction of the spray pipe 55 and the axis direction of the spray column 1 increases, so that the spray range of the spray pipe 55 increases to adapt to a larger dust reduction range, reducing the occurrence of dust reduction blind spots and improving the dust reduction treatment effect; When the required dust reduction range is small, the adjusting component 6 drives multiple mounting plates 41 to rotate towards the ground, and the angle between the spray pipe 55 and the axis direction of the spray column 1 becomes smaller, so that the spray range of the spray pipe 55 is concentrated within a smaller dust reduction range, increasing the spray volume per unit area and thus improving the dust reduction effect; The setting of the adjusting component 6 realizes the adaptive adjustment of the spray range of the spray pipe 55 with the dust reduction range, improving the dust reduction treatment effect.

[0042] The above are all preferred embodiments of the present application. Without restricting the protection scope of the present application based on this, therefore: Any equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A construction site dust spraying device, comprising a spray column (1), wherein a cavity (2) is formed in the spray column (1), wherein a spray assembly (5) is arranged in the cavity (2), wherein the spray assembly (5) comprises a water tank (51), wherein a water supply pipe (53) is connected to the water tank (51), wherein a water supply pump (52) is connected to the water supply pipe (53), wherein the water supply pump (52) is connected to the water supply pipe (53), wherein the spray assembly (55) comprises a water tank (51), wherein the water tank (51 ... A plurality of rotating seats (4) are evenly and equidistantly arranged on the outer circumference of the spray column (1); a mounting plate (41) is rotatably connected to the rotating seat (4); a spray pipe (55) is arranged on each mounting plate (41); each spray pipe (55) is evenly and equidistantly arranged with a plurality of spray heads along the length direction; each spray pipe (55) is connected to the water supply pipe (53) via a bellows (54); and an adjusting component (6) is arranged on the spray column (1) for driving the plurality of mounting plates (41) to rotate synchronously around the rotating seat (4).

2. A construction site dust spraying device according to claim 1, characterized in that: The adjustment component (6) comprises a threaded column (61) rotatably connected to the cavity (2); the outer surface of the threaded column (61) is threadedly connected to a driving ring (62); the driving ring (62) is slidably connected to the inside of the cavity (2); the outer peripheral side of the driving ring (62) is hinged with a driving rod (63) corresponding to a plurality of the mounting plates (41); the spray column (1) is provided with an adjustment groove (101) slidably matched with the driving rod (63); the end of each driving rod (63) away from the driving ring (62) is hinged to the mounting plate (41); and the spray column (1) is provided with a driving component (7) for driving the threaded column (61) to rotate.

3. A construction site dust spraying device according to claim 2, characterized in that: The driving assembly (7) comprises an outer gear ring (74) fixedly sleeved on the outer surface of the threaded column (61); a groove (102) rotatably matched with the outer gear ring (74) is provided on the spray column (1); an equipment box (71) connected with the groove (102) is provided on the outer surface of the spray column (1); a rotating motor (72) is provided in the equipment box (71); and a gear (73) meshing with the outer gear ring (74) is coaxially provided on the output shaft of the rotating motor (72).

4. A construction site dust spraying device according to claim 1, characterized in that: A base plate (3) is arranged inside the spray column (1), the water tank (51) is arranged on the base plate (3), a piston block (511) is slidably arranged inside the water tank (51), the upper and lower surfaces of the piston block (511) are respectively enclosed with the inner wall of the water tank (51) to form a water supply area (512) and a pressurization area (513), the water supply pipe (53) is connected to the inside of the water supply area (512), the pressurization area (513) is filled with gas, and a pressurization component (9) for driving the pressurization area (513) to increase the pressure is arranged in the cavity (2).

5. A construction site dust spraying device according to claim 4, characterized in that: The boost component (9) comprises a boost airbag (91) arranged in the cavity (2). The boost airbag (91) is arranged at the end of the base plate (3) away from the water tank (51). The boost airbag (91) is annular and made of elastic material. The boost airbag (91) is connected to the boost area (513) through an air supply pipe (92). The base plate (3) is provided with a guide groove (31) parallel to the length direction of the boost airbag (91). An extrusion plate (93) is slidably connected in the guide groove (31). When the boost airbag (91) is filled, the extrusion plate (93) is attached to the outer surface of the boost airbag (91). A moving component (10) for driving the extrusion plate (93) to move back and forth is provided in the cavity (2).

6. A construction site dust spraying device according to claim 5, characterized in that: The moving assembly (10) comprises a driving shaft (1001) rotatably connected to the center of the boost airbag (91); a spiral groove (11) and a reset groove (12) are provided on the driving shaft (1001) along the axial direction; the reset groove (12) communicates with the head and tail ends of the spiral groove (11); a protrusion slidably connected to the inside of the spiral groove (11) and the reset groove (12) is provided on the extrusion plate (93); the extrusion plate (93) is slidably sleeved on the outer surface of the driving shaft (1001); a fan blade (1002) is rotatably connected to the outer surface of the spray column (1) near the top; and the fan blade (1002) is transmission-connected to the driving shaft (1001) via a sprocket and a chain.

7. A construction site dust spraying device according to claim 4, characterized in that: The outer surface of the spray column (1) is provided with a water collecting cylinder (8), the opening of the water collecting cylinder (8) is trumpet-shaped, a filter assembly for filtering impurities is provided inside the water collecting cylinder (8), the bottom end of the water collecting cylinder (8) is connected to the water supply area (512) through a water supply pipe (81), and a valve is provided on the water supply pipe (81).

8. A construction site dust spraying device according to claim 7, characterized in that: The valve is a solenoid valve (82), a water level sensor is provided inside the water supply area (512), and the water level sensor is electrically connected to the solenoid valve (82) through a control system.

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