Spraying and dust settling device for building construction site

Abstract

The invention discloses a spraying and dust reducing device for a building construction site, and relates to the technical field of building construction, the spraying and dust reducing device comprises a main body, universal wheels are rotatably mounted at the bottom of the main body, supporting rods are fixedly mounted at the top of the main body, an air blowing device is arranged between the two supporting rods, and a transverse frame is fixedly mounted in the air blowing device; a motor is fixedly installed on the back of the transverse frame, a rotating shaft is fixedly installed at the output end of the motor, fan blades are fixedly installed on the circumferential face of the rotating shaft, a protection device is arranged in the air blowing device, and an inner channel of the air blowing device is closed after a turning plate is reset. According to the device, damage or pollution caused by long-term exposure in the external environment can be reduced, so that the device can be kept in a good state for a longer time, the frequency and cost of maintenance and repair are reduced, dust or dirt can be prevented from being accumulated on the device, and a work site is kept clean and tidy.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, in particular to a spray dust suppression device used in building construction sites. Background Art

[0002] Construction site dust suppression devices use water mist or other liquids to reduce dust pollution and improve air quality during construction. These devices are widely used in dusty areas such as construction sites, mines, and road construction to prevent dust from spreading, protect worker health, and comply with environmental regulations.

[0003] Patent publication number CN217855265U relates to the field of construction technology and discloses a spray dust suppression device for construction sites. The device comprises a base plate, the bottom surface of which is mounted with universal wheels, two handrails fixedly connected to the upper surface of the base plate, a water tank fixedly connected to the upper surface of the water tank, a water inlet pipe fixedly connected to the upper surface of the water tank, and a rotating mechanism provided on the outer surface of the water tank. The rotating mechanism includes a supporting circular plate positioned above the water tank. The device utilizes the water tank, the rotating mechanism, and the spray dust suppression mechanism to spray dust suppression at construction sites. The rotating mechanism allows water mist to be sprayed at multiple angles during dust suppression at construction sites, effectively reducing operation time and significantly improving dust suppression efficiency compared to spraying water mist in a single direction. The supporting cylinder and the track groove cooperate to support the supporting circular plate while enabling its rotation to be more stable.

[0004] In the above patent, through the cooperation between the water tank, the rotating mechanism and the spray dust reduction mechanism, the water tank and the spray dust reduction mechanism can be used to spray dust reduction on the construction site. However, it is difficult to effectively protect the device after the device finishes working, which may lead to improper storage of the device and make it unable to be used normally next time. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a spray dust suppression device for use in construction sites, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A spray dust suppression device for construction sites, comprising a main body, a universal wheel rotatably mounted on the bottom of the main body, a support rod fixedly mounted on the top of the main body, a blowing device provided between two of the support rods, a horizontal frame fixedly mounted inside the blowing device, a motor fixedly mounted on the back of the horizontal frame, a rotating shaft fixedly mounted on the output end of the motor, a fan blade fixedly mounted on the circumferential surface of the rotating shaft, and a protective device provided inside the blowing device; The gear train is fixedly mounted on one end of the rotating shaft near the horizontal frame, the rack train is slidably mounted on the front of the horizontal frame, the slide rail is fixedly mounted on the inner wall of the blowing device, the push plate is slidably mounted inside the slide rail, the fixed column is fixedly mounted on the inner wall of the blowing device, and the flip plate is rotatably mounted on the circumferential surface of the fixed column. The rotation of the rotating shaft drives the gear train to rotate, the rotation of the gear train drives the rack train to move, the rack train moves and contacts and pushes the push plate to start moving forward, the push plate moves and contacts and pushes the flip plate to start rotating, and the flip plate rotates to open the internal channel of the blowing device. At this time, after the rack train moves into place, the clamping rod contacts the clamping slot to limit the movement of the rack train. Among them, the back of the blowing device is provided with a cleaning device for cleaning the air inlet of the blowing device and a stabilizing device for stabilizing. The cleaning device is provided to ensure smooth flow of air, and the stabilizing device is provided to ensure that the device maintains a stable position and angle.

[0007] The cam is secured to the front of the gear train by means of a spring, and the cam is secured to the front of the gear train by means of a spring which is secured to the front of the gear train when the gear train is in motion.

[0008] According to the above technical solution, the collection device includes an elastic telescopic rod 1, a scraping rod, and a collection box. The elastic telescopic rod 1 is fixedly installed on the back of the blowing device, the scraping rod is fixedly installed on the movable end of the elastic telescopic rod 1, and the collection box is fixedly installed on the back of the blowing device. The rack 1 moves while contacting and pushing the scraping rod to start moving. The scraping rod moves to clean impurities or garbage that may exist on the air intake grille on the back of the blowing device.

[0009] According to the above technical solution, the collection device also includes a fixed block, a baffle, a second inclined block and a bottom plate. The fixed block is fixedly installed on the back of the collection box, the baffle is slidably installed on the top of the collection box, the second inclined block is fixedly installed on the top of the baffle, and the bottom plate is fixedly installed on the back of the scraper rod. When the scraper rod moves, the bottom plate starts to move downward, and the bottom plate moves to contact and push the second inclined block to start moving backward. The movement of the second inclined block drives the baffle to start moving, and the baffle moves to open the collection port of the collection box for collection. After the work is completed, the baffle closes the collection port of the collection box.

[0010] According to the above technical solution, the scraper rod is in contact with the blowing device, and the side of the inclined block 2 that contacts the bottom plate is set as an inclined surface. A spring 4 is provided between the inclined block 2 and the fixed block. The contact ensures that the scraper rod can achieve the cleaning effect when it moves, and the inclined surface is set to ensure that the bottom plate can smoothly push the inclined block 2 when it moves. The spring 4 is set to ensure that the inclined block 2 can achieve self-reset.

[0011] According to the above technical solution, the stabilizing device includes a sliding box, a handle, a second rack, a rotating column, a second gear and a baffle. The sliding box is slidably installed inside the collection box, the handle is fixedly installed on the left side of the sliding box, the second rack is fixedly installed on the left side of the baffle, the two rotating columns are rotatably installed on the left side of the collection box, the two rotating columns are connected by a transmission belt, the second gear is fixedly installed on the circumferential surface of the rotating column, and the baffle is fixedly installed on the front of the transmission belt. When the baffle starts to move, it drives the second rack to move, the movement of the second rack drives the second gear to rotate, the rotation of the second gear drives the rotating column to rotate, the rotation of the rotating column drives the transmission belt to rotate, the rotation of the transmission belt drives the baffle to start moving upward, and the movement of the baffle limits the movement of the sliding box during operation.

[0012] According to the above technical solution, the stabilizing device also includes a sliding rod, a connecting rod, an elastic telescopic rod 2 and a support block. The sliding rod is slidably installed on the back of the collection box, one end of the connecting rod is fixedly installed on the back of the transmission belt, and the other end of the connecting rod is fixedly installed on the back of the sliding rod. The elastic telescopic rod 2 is fixedly installed on the bottom of the sliding rod, and the support block is fixedly installed on the movable end of the elastic telescopic rod 2. The transmission belt rotates while driving the connecting rod to start moving downward, the movement of the connecting rod drives the sliding rod to start moving downward, the movement of the sliding rod drives the elastic telescopic rod 2 to start moving downward, and the movement of the elastic telescopic rod 2 drives the support block to start moving downward.

[0013] According to the above technical solution, the rack 2 is engaged with the gear 2, and the baffle is in contact with the collection box. The engagement ensures that the rack 2 can drive the gear 2 to rotate when it moves, and the contact ensures that the baffle can limit the slide box when it is working.

[0014] The present invention provides a spray dust suppression device for use at construction sites. It has the following beneficial effects: (1) This invention sprays water from the front of the blowing device through a water pipe. The sprayed fine water flow is blown into the air by the wind and becomes tiny particles. It can effectively absorb dust in the air and make it settle, thereby significantly reducing the dust concentration at the construction site. At the same time, it can reduce the erosion of dust on the equipment and extend the service life of the equipment. After the flap is reset, the internal channel of the blowing device is closed, which helps to reduce damage or pollution caused by long-term exposure to the external environment, so that the equipment can remain in good condition for a longer time, thereby reducing the frequency and cost of maintenance and repair. At the same time, it can avoid the accumulation of dust or dirt on the equipment, keep the workplace clean, and help improve the overall management level of the construction site.

[0015] (2) This invention uses a scraper to move and clean the impurities or garbage that may be on the air intake grille at the back of the blowing device, ensuring smooth air flow, thereby improving the overall efficiency of the spray dust reduction device, achieving a better dust reduction effect, and reducing dust pollution at the construction site. At the same time, it reduces the frequency and workload of manual cleaning, which not only saves labor costs but also improves work efficiency, making the management of the construction site simpler and more efficient.

[0016] (3) This invention closes the collection port of the collection box with a baffle after the work is completed and opens the collection port during work, which can ensure that the collection equipment is more focused and efficient during work. Closing the collection port after the work is completed can avoid unnecessary operation of the equipment, improve the overall efficiency of the garbage collection process, and reduce unnecessary waste of time.

[0017] (4) This invention limits the movement of the slide box during operation by moving the blocking rod, ensuring that the slide box does not move excessively during operation, preventing the slide box from accidentally sliding out due to other reasons during operation, resulting in collection failure. At the same time, it can reduce the time and energy of workers in frequently adjusting positions, making the work process smoother. By moving the support block, it can ensure that the device maintains a stable position and angle during operation, so that the spray direction accurately covers the target area and improves the dust reduction effect. At the same time, the stable device can avoid accidents caused by equipment tipping or movement, ensuring the safety of construction workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional schematic diagram of the blowing device and the horizontal frame structure of the present invention; Figure 3 This is a schematic cross-sectional view of the protective device structure of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the structure of part A in the middle; Figure 5 This is a schematic cross-sectional view of the structure of the collection device of the present invention; Figure 6 It is a schematic cross-sectional view of the structure of the stabilizing device of the present invention; Figure 7 It is a schematic cross-sectional view of the structure of rack 2 and gear 2 of the present invention.

[0019] In the figure: 1. main body; 2. universal wheel; 3. support rod; 4. blowing device; 5. cross frame; 6. motor; 7. rotating shaft; 8. fan blade; 9. gear 1; 10. rack 1; 11. slide rail; 12. push plate; 13. fixed column; 14. flip plate; 15. clamping rod; 16. inclined block 1; 17. button; 181. elastic telescopic rod 1; 182. scraper rod; 183. collection box; 184. fixed block; 185. baffle; 186. inclined block 2; 187. bottom plate; 191. slide box; 192. handle; 193. rack 2; 194. rotating column; 195. gear 2; 196. baffle rod; 197. slide rod; 198. connecting rod; 199. elastic telescopic rod 2; 1910. support block. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 7 One embodiment of the present invention is: a spray dust suppression device for a construction site, comprising a main body 1, a universal wheel 2 rotatably mounted on the bottom of the main body 1, a support rod 3 fixedly mounted on the top of the main body 1, a blowing device 4 provided between the two support rods 3, a horizontal frame 5 fixedly mounted inside the blowing device 4, a motor 6 fixedly mounted on the back of the horizontal frame 5, a rotating shaft 7 fixedly mounted on the output end of the motor 6, a fan blade 8 fixedly mounted on the circumferential surface of the rotating shaft 7, and a protective device provided inside the blowing device 4; Among them, the protective device includes a gear 9, a rack 10, a slide rail 11, a push plate 12, a fixed column 13 and a flap 14. The gear 9 is fixedly installed on one end of the rotating shaft 7 close to the horizontal frame 5, the rack 10 is slidably installed on the front of the horizontal frame 5, the slide rail 11 is fixedly installed on the inner wall of the blowing device 4, the push plate 12 is slidably installed inside the slide rail 11, the fixed column 13 is fixedly installed on the inner wall of the blowing device 4, and the flap 14 is rotatably installed on the circumferential surface of the fixed column 13. After the flap 14 is reset, the internal channel of the blowing device 4 is closed, which helps to reduce damage or pollution caused by long-term exposure to the external environment, so that the equipment can remain in good condition for a longer time, thereby reducing the frequency and cost of maintenance and repair, and at the same time avoiding the accumulation of dust or dirt on the equipment, keeping the workplace clean and tidy, and helping to improve the overall management level of the construction site.

[0022] The protective device also includes a card rod 15, a bevel block 16 and a button 17. The card rod 15 is slidably mounted on the front of the cross frame 5, the bevel block 16 is slidably mounted on the front of the cross frame 5, the button 17 slides through the blowing device 4, the gear 9 is engaged with the rack 10, and a card slot is provided on the side of the rack 10 close to the card rod 15. The side of the card rod 15 and the bevel block 16 close to each other are both set as bevels, and the side of the bevel block 16 and the button 17 close to each other are both set as bevels. A spring is provided between the push plate 12 and the inner wall of the blowing device 4, and a spring is provided between the card rod 15 and the inner wall of the blowing device 4. Spring two, a spring three is provided between the button 17 and the blowing device 4, which ensures that the gear 19 can drive the rack 10 to move when it rotates by meshing, and ensures that the card rod 15 can limit the rack 10 by providing a card slot, and ensures that the inclined surface block 16 can smoothly push the card rod 15 when it moves by setting the inclined surface, and ensures that the button 17 can smoothly push the inclined surface block 16 when it moves by setting the inclined surface, and ensures that the push plate 12 can achieve self-reset by setting the spring one, and ensures that the card rod 15 can achieve self-reset by setting the spring two, and ensures that the button 17 can achieve self-reset by setting the spring three.

[0023] When this embodiment is working: first, the staff checks whether the working state of the device is normal. After confirming that the working state of the device is correct, the staff pushes the device to the designated area. After confirming that the position is correct, the universal wheel 2 is fixed to ensure that the device does not produce excessive displacement during work, resulting in work errors. Then, the motor 6 is started to drive the rotating shaft 7 to start rotating. The rotation of the rotating shaft 7 drives the fan blades 8 to start rotating. The fan blades 8 rotate to start blowing. At the same time, the water pump starts pumping water through the water pipe and sprays it in front of the blowing device 4. The sprayed fine water flow is blown into the air by the wind and becomes tiny particles, which can effectively absorb dust in the air and make it settle, thereby significantly reducing the dust concentration at the construction site. At the same time, it can reduce the erosion of dust on the equipment and extend the service life of the equipment. When the rotating shaft 7 rotates, it drives the gear 9 to start rotating. The rotation of the gear 9 drives the rack 10 to start moving. The rack 10 moves to contact and push the push plate 12 to start moving forward. The push plate 12 moves to contact and push the flap 14 to start rotating. The flap 14 rotates to open the interior of the blowing device 4 The gear 10 is then moved back into engagement with the gear 11 and the gear 12 is brought into engagement with the gear 11, and the gear 11 is brought back into engagement with the gear 11. The gear 10 is then brought back into engagement with the gear 11 and the gear 12 is brought back into engagement with the gear 11.

[0024] See also Figure 1-Figure 7 In another embodiment of the present invention, based on the above embodiment, a cleaning device for cleaning the air inlet of the blowing device 4 and a stabilizing device for stabilizing are provided on the back of the blowing device 4. The cleaning device ensures smooth flow of air, and the stabilizing device ensures that the device maintains a stable position and angle. The collection device includes an elastic telescopic rod 181, a scraping rod 182, and a collection box 183. The elastic telescopic rod 181 is fixedly installed on the back of the blowing device 4, the scraping rod 182 is fixedly installed on the movable end of the elastic telescopic rod 181, and the collection box 183 is fixedly installed on the back of the blowing device 4. The scraping rod 182 is moved to clean the impurities or garbage that may exist on the air intake grille on the back of the blowing device 4, ensuring the smooth flow of air, thereby improving the overall efficiency of the spray dust reduction device, achieving better dust reduction effects, reducing dust pollution at the construction site, and reducing the frequency and workload of manual cleaning. It not only saves labor costs, but also improves work efficiency, making the management of the construction site simpler and more efficient.

[0025] The collection device also includes a fixed block 184, a baffle 185, a second inclined block 186 and a bottom plate 187. The fixed block 184 is fixedly mounted on the back of the collection box 183, the baffle 185 is slidably mounted on the top of the collection box 183, the second inclined block 186 is fixedly mounted on the top of the baffle 185, and the bottom plate 187 is fixedly mounted on the back of the scraper rod 182. By closing the collection port of the collection box 183 with the baffle 185 after the work is completed and opening the collection port during work, it can ensure that the collection equipment is more focused and efficient when working. Closing the collection port after work can avoid unnecessary operation of the equipment, improve the overall efficiency of the garbage collection process, and reduce unnecessary waste of time.

[0026] The scraper rod 182 is in contact with the blowing device 4, and the contacting sides of the inclined block 2 186 and the bottom plate 187 are both set as inclined surfaces. A spring four is provided between the inclined block 2 186 and the fixed block 184. The contact ensures that the scraper rod 182 can achieve the cleaning effect when it moves, and the inclined surface ensures that the bottom plate 187 can smoothly push the inclined block 2 186 when it moves. The spring four ensures that the inclined block 2 186 can achieve self-reset.

[0027] The stabilizing device includes a slide box 191, a handle 192, a second rack 193, a rotating column 194, a second gear 195 and a baffle 196. The slide box 191 is slidably installed inside the collection box 183, the handle 192 is fixedly installed on the left side of the slide box 191, the second rack 193 is fixedly installed on the left side of the baffle 185, the two rotating columns 194 are rotatably installed on the left side of the collection box 183, the two rotating columns 194 are connected by a transmission belt, the second gear 195 is fixedly installed on the circumferential surface of the rotating column 194, and the baffle 196 is fixedly installed on the front of the transmission belt. The movement of the baffle 196 limits the movement of the slide box 191 during work, ensuring that the slide box 191 does not move too much during work, and preventing the slide box 191 from accidentally slipping out due to other reasons during work, resulting in collection failure. At the same time, it can reduce the time and energy of the staff to frequently adjust the position, making the work process smoother.

[0028] The stabilizing device also includes a slide bar 197, a connecting rod 198, an elastic telescopic rod 199 and a support block 1910. The slide bar 197 is slidably mounted on the back of the collection box 183, one end of the connecting rod 198 is fixedly mounted on the back of the transmission belt, and the other end of the connecting rod 198 is fixedly mounted on the back of the slide bar 197. The elastic telescopic rod 199 is fixedly mounted on the bottom of the slide bar 197, and the support block 1910 is fixedly mounted on the movable end of the elastic telescopic rod 199. The movement of the support block 1910 can ensure that the device maintains a stable position and angle during operation, so that the spray direction accurately covers the target area, thereby improving the dust reduction effect. At the same time, the stable device can avoid accidents caused by equipment tipping over or movement, thereby ensuring the safety of construction workers.

[0029] Rack 2 193 is meshed with gear 2 195, and the blocking rod 196 is in contact with the collection box 183. The meshing ensures that rack 2 193 can drive gear 2 195 to rotate when moving, and the contact ensures that the blocking rod 196 can limit the slide box 191 when working.

[0030] When this embodiment is working: when the rack 10 moves, it contacts and pushes the scraper 182 to start moving. The scraper 182 moves to clean the impurities or garbage that may exist on the air intake grille on the back of the blowing device 4, ensuring the smooth flow of air, thereby improving the overall efficiency of the spray dust reduction device, achieving a better dust reduction effect, reducing dust pollution at the construction site, and reducing the frequency and workload of manual cleaning, which not only saves labor costs, but also improves work efficiency, making the management of the construction site simpler and more efficient. When the scraper 182 moves, it drives the bottom plate 187 to start moving downward. The bottom plate 187 moves to contact and push the inclined block 2 186 to start moving backward. The inclined block 2 186 moves to drive the baffle 185 to start moving. The baffle 185 moves to open the collection port of the collection box 183 for collection. After the work is completed, the baffle 185 closes the collection port of the collection box 183. Opening the collection port during work can ensure that the collection equipment is more focused and efficient during work. Closing the collection port after work can avoid unnecessary operation of the equipment, improve the overall efficiency of the garbage collection process, and reduce unnecessary time waste.

[0031] When the baffle 185 starts to move, it drives the rack 2 193 to start moving, the rack 2 193 moves and drives the gear 2 195 to start rotating, the gear 2 195 rotates and drives the rotating column 194 to start rotating, the rotating column 194 rotates and drives the transmission belt to start rotating, the transmission belt rotates and drives the baffle 196 to start moving upward, and the baffle 196 moves to limit the movement of the slide box 191 during work, ensuring that the slide box 191 does not move too much during work, preventing the slide box 191 from accidentally slipping out due to other reasons during work, resulting in collection failure, and at the same time, it can reduce the time and energy of the staff to frequently adjust the position, making the work process smoother, and at the same time as the transmission belt rotates, it drives the connecting rod 198 to start moving downward, and the connecting rod 1 The movement of 98 drives the slide bar 197 to start moving downward, the movement of the slide bar 197 drives the elastic telescopic rod 2 199 to start moving downward, the movement of the elastic telescopic rod 2 199 drives the support block 1910 to start moving downward, and the movement of the support block 1910 can ensure that the device maintains a stable position and angle during operation, so that the spray direction accurately covers the target area and improves the dust reduction effect. At the same time, the stable device can avoid accidents caused by equipment tipping or movement, and ensure the safety of construction workers. After the work is completed, the barrier rod 196 no longer restricts the slide box 191. At this time, the staff can manually pull the handle 192 to pull the slide box 191 out of the collection box 183, and then dump the garbage collected in the slide box 191 at a designated location.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A spray dust suppression device for a construction site, comprising a main body, characterized in that: A universal wheel is rotatably mounted on the bottom of the main body, a support rod is fixedly mounted on the top of the main body, a blowing device is provided between the two support rods, a horizontal frame is fixedly mounted inside the blowing device, a motor is fixedly mounted on the back of the horizontal frame, a rotating shaft is fixedly mounted on the output end of the motor, a fan blade is fixedly mounted on the circumferential surface of the rotating shaft, and a protective device is provided inside the blowing device; The protective device includes a first gear, a first rack, a slide rail, a push plate, a fixed column and a flap, wherein the first gear is fixedly mounted on one end of the rotating shaft close to the horizontal frame, the first rack is slidably mounted on the front of the horizontal frame, the slide rail is fixedly mounted on the inner wall of the blowing device, the push plate is slidably mounted inside the slide rail, the fixed column is fixedly mounted on the inner wall of the blowing device, and the flap is rotatably mounted on the circumferential surface of the fixed column; Wherein, a cleaning device for cleaning the air inlet of the blowing device and a stabilizing device for stabilizing are provided on the back of the blowing device.

2. The spray dust suppression device for construction sites according to claim 1, characterized in that: The protective device also includes a card rod, a sloped block and a button. The card rod is slidably mounted on the front part of the cross frame, the sloped block is slidably mounted on the front part of the cross frame, the button slides through the blowing device, the gear 1 is meshed with the rack 1, and a card slot is provided on the side of the rack 1 close to the card rod, the sides of the card rod and the sloped block 1 close to each other are both set as slopes, and the sides of the sloped block 1 and the button close to each other are both set as slopes, a spring 1 is provided between the push plate and the inner wall of the blowing device, a spring 2 is provided between the card rod and the inner wall of the blowing device, and a spring 3 is provided between the button and the blowing device.

3. The spray dust suppression device for construction sites according to claim 2, characterized in that: The collection device includes an elastic telescopic rod 1, a scraping rod, and a collection box. The elastic telescopic rod 1 is fixedly installed on the back of the blowing device, the scraping rod is fixedly installed on the movable end of the elastic telescopic rod 1, and the collection box is fixedly installed on the back of the blowing device.

4. The spray dust suppression device for construction sites according to claim 3, characterized in that: The collection device also includes a fixed block, a baffle, a second inclined block and a bottom plate. The fixed block is fixedly installed on the back of the collection box, the baffle is slidably installed on the top of the collection box, the second inclined block is fixedly installed on the top of the baffle, and the bottom plate is fixedly installed on the back of the scraper rod.

5. The spray dust suppression device for construction sites according to claim 4, characterized in that: The scraper rod is in contact with the blowing device, and the sides of the inclined surface block 2 that are in contact with the bottom plate are both set as inclined surfaces, and a spring 4 is provided between the inclined surface block 2 and the fixed block.

6. The spray dust suppression device for construction sites according to claim 5, characterized in that: The stabilizing device includes a sliding box, a handle, a second rack, a rotating column, a second gear and a baffle. The sliding box is slidably installed inside the collection box, the handle is fixedly installed on the left side of the sliding box, the second rack is fixedly installed on the left side of the baffle, the two rotating columns are rotatably installed on the left side of the collection box, the two rotating columns are connected by a transmission belt, the second gear is fixedly installed on the circumferential surface of the rotating column, and the baffle is fixedly installed on the front of the transmission belt.

7. The spray dust suppression device for construction sites according to claim 6, characterized in that: The stabilizing device also includes a sliding rod, a connecting rod, a second elastic telescopic rod and a support block. The sliding rod is slidably mounted on the back of the collection box, one end of the connecting rod is fixedly mounted on the back of the transmission belt, and the other end of the connecting rod is fixedly mounted on the back of the sliding rod. The second elastic telescopic rod is fixedly mounted on the bottom of the sliding rod, and the support block is fixedly mounted on the movable end of the second elastic telescopic rod.

8. The spray dust suppression device for construction sites according to claim 7, characterized in that: The second rack is engaged with the second gear, and the blocking rod is in contact with the collection box.

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