A dust suppression device and method for construction sites

Abstract

This invention relates to the field of spray dust suppression technology, and discloses a dust suppression device and method for construction sites. The dust suppression device includes a support platform with several support legs at the bottom. From left to right, the top of the support platform has a water tank, an auxiliary section, and a water collection tank. The top of the water collection tank has a water inlet hopper, and the bottom of the water collection tank is connected to the auxiliary section via a connecting pipe one. The upper part of the auxiliary section is connected to the water tank via a connecting pipe four. A bracket is located on the top of the water tank away from the auxiliary section, and a cannon is mounted on the bracket. A connecting pipe two is connected to one side of the cannon near the auxiliary section, and a water pump is connected to the other side of the connecting pipe two away from the cannon. A connecting pipe three is connected to the other side of the water pump, and the other side of the connecting pipe three is connected to the lower side of the water tank. An atomizing head is located on the side of the cannon away from the auxiliary section, and the atomizing head has a perforated mesh inside. Several arc-shaped grooves are provided on the inner rotating cylinder to disperse the sprayed water mist, thereby improving the dust suppression effect.

Description

Technical Field

[0001] This invention relates to the field of spray dust suppression technology, and more specifically, to a dust suppression device and method for construction work. Background Technology

[0002] With the rapid development of urban construction, building construction is also increasing rapidly. The construction process generates a lot of dust, which causes great damage to the environment and seriously affects air quality. At present, fog cannons and similar atomizing equipment are widely used on construction sites to suppress dust by spraying water mist, which has achieved certain results.

[0003] In the prior art, a fog cannon includes a base, a mounting frame on the base, and a wind duct on the mounting frame. One end of the wind duct has a water outlet. The base also contains a high-pressure pump for drawing water to the water outlet, and the wind duct also contains a fan for blowing out water mist. The lower end face of the mounting frame has a rotating shaft. The mounting frame is rotatably connected to the base via the rotating shaft. The axis of the rotating shaft is vertical. The base also contains a drive assembly for driving the mounting frame to reciprocate along the rotating axis.

[0004] Regarding the aforementioned technologies, existing fog cannons have always used tap water for water supply. If the water in the tank is not replenished in time during dust suppression, it will affect the dust suppression process, requiring waiting for the tap water to replenish. This increases the workload and inconvenience, and may also lead to a waste of water resources. Summary of the Invention

[0005] The technical objective of this invention is to address the above-mentioned shortcomings by providing a dust suppression device and method for construction work, thereby resolving the aforementioned problems.

[0006] The technical solution of this invention is implemented as follows:

[0007] According to one aspect of the present invention, a dust suppression device for building construction is provided.

[0008] Includes: a support platform with several support legs at its base; a water tank, an auxiliary section, and a water collection tank arranged sequentially from left to right on the top of the support platform; a water inlet hopper at the top of the water collection tank; the bottom of the water collection tank connected to the auxiliary section via connecting pipe one; the upper part of the auxiliary section connected to the water tank via connecting pipe four; a bracket on the top of the water tank away from the auxiliary section; a cannon barrel mounted on the bracket; a connecting pipe two connected to one side of the cannon barrel near the auxiliary section; a water pump connected to the side of the connecting pipe two away from the cannon barrel; a connecting pipe three connected to the other side of the water pump; and the other side of the connecting pipe three connected to the lower side of the water tank. Atomizing head is provided on one side, with a perforated mesh inside. An inner rotating cylinder is located inside the barrel to the right of the perforated mesh. Several arc-shaped grooves are provided on the inner rotating cylinder, with matching limiting rods above and below the arc-shaped grooves. A guide ring is provided at the outer end of the limiting rod. A secondary gear is provided on the side of the inner rotating cylinder away from the perforated mesh, and a disc is provided on the side of the secondary gear away from the barrel. The disc is engaged with the right end of the barrel. A meshing main gear is provided below the secondary gear on the lower side of the disc. A shaft is inserted through the middle of the main gear and passes through the disc, connecting to a driver installed on the other side of the disc. Fan blades are provided inside the inner rotating cylinder on the side of the secondary gear.

[0009] Preferably, the inner rotating cylinder has several air outlets on its surface, and a rotating shaft is located in the middle of the side of the secondary gear away from the inner rotating cylinder. The side of the rotating shaft away from the secondary gear is movably connected to the side of the disc.

[0010] Preferably, the water tank has an inlet on the top side near the auxiliary part and an outlet on the bottom side away from the auxiliary part, with end caps on the inlet and outlet respectively.

[0011] Preferably, the support platform has a through hole in the middle, and the auxiliary part includes a water storage tank. A water pump is provided at the top center of the water storage tank, and a water outlet is provided at the bottom center of the water pump. The water outlet connects the water pump to the inside of the water storage tank. A matching piston is provided inside the water pump. An inverted U-shaped bracket is provided at the top of the piston. A lifting rod is provided on the inverted U-shaped bracket. The lifting rod passes through the top of the water pump. An L-shaped frame is provided on the upper part of the lifting rod. The bottom of the L-shaped frame is fixed to one side of the top of the water pump.

[0012] Preferably, a fourth connecting pipe is connected to the upper part of the pumping cylinder near the barrel, and the other end of the fourth connecting pipe is connected to the top side of the water tank. The water tank is inserted into the through hole, and a first connecting pipe is connected to the side of the water tank away from the water tank. The side of the first connecting pipe away from the water tank passes through the support platform and is connected to the inside of the water collection tank.

[0013] Preferably, a support column is provided on the top of the support platform on one side between the water storage tank and the water collection tank. A motor is provided on the side of the support column near the center. The output end of the motor is connected to an output shaft, which passes through the support column. A turntable is provided on the side of the output shaft away from the motor. A drive arm is provided on the side end of the turntable away from the support column. A pressure rod is provided at the other end of the drive arm corresponding to the side of the support column. A U-shaped clamping block is provided at the end of the pressure rod away from the drive arm. A middle block is provided in the U-groove of the U-shaped clamping block. A lifting rod passes through the middle block.

[0014] Preferably, a second U-shaped clamping block is provided on the lower part of the side of the pressure rod near the first U-shaped clamping block, a support rod is provided at the bottom of the second U-shaped clamping block, a third U-shaped clamping block is provided at the bottom of the support rod, a clamping block is provided in the U-groove of the third U-shaped clamping block, and the left side of the clamping block is fixed to the upper side of the pumping cylinder.

[0015] Preferably, the piston has a second outlet in the middle, and valves one and two are respectively provided on the second outlet and the first outlet. Valve one and valve two are connected separately, and the piston is configured as a double-layer structure.

[0016] According to another aspect of the present invention, a method for dust suppression during building construction is provided.

[0017] Includes the following steps:

[0018] Turn on the water pump to draw water from the tank into the cannon barrel;

[0019] The drive unit operates, and the drive unit rotates the main gear.

[0020] The main gear drives the secondary gear to rotate, and the rotation of the secondary gear drives the inner rotating cylinder connected to the side to rotate.

[0021] After the inner rotating cylinder rotates, the arc-shaped groove on the surface will cause the internally inserted limit rod to slide. Since limit rods are inserted at both the upper and lower parts of the arc-shaped groove;

[0022] As the limiting rod slides along the arc-shaped groove, it carries the connected guide ring and slides to the surrounding areas or to the center at the same time.

[0023] As the secondary gear rotates, it drives the fan blades connected to the inner wall. The wind generated by the rotation of the fan blades is dispersed through the arc grooves and air outlets on the inner rotating cylinder wall. At the same time, the water entering the interior is driven to flow under the movement of the guide ring opening and closing. Then, the dispersed water is sprayed out through the atomizing head to suppress the dust generated by the external construction site.

[0024] When it rains, the rainwater is collected in a water collection tank.

[0025] Water is introduced into the water storage tank through a connecting pipe;

[0026] The auxiliary unit introduces water stored in the water storage tank into the water tank.

[0027] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0028] 1. When dust suppression is required at construction sites, water from the tank is pumped into the cannon. As the guide ring inside the cannon moves to the sides or towards the center, compression occurs inside. The water entering the cannon increases its fluidity due to the compression. The water is dispersed during compression and, in conjunction with the wind generated by the fan blades in the inner rotating cylinder, the sprayed water mist is dispersed, thereby improving the dust suppression effect.

[0029] 2. When the water in the water tank is insufficient, the auxiliary part introduces the water collected in the water collection tank into the water tank to provide a water source for the water tank. The water collection tank collects rainwater, reducing the use of tap water and reducing the waste of water resources.

[0030] 3. An auxiliary part is used to connect the water tank and the collection tank. The auxiliary part mainly acts as a buffer to prevent the collected rainwater from being dumped into the water tank all at once, which would put a burden on the water tank. With the buffering effect of the auxiliary part, the water can be transported according to the demand, reducing the waste of water resources.

[0031] 4. The spacing between the guide rings is the same. When the guide rings expand or merge, the compression motion between adjacent rings will be adjusted with the guide rings on both sides. The compression motion generated inside will cause the flowing water to roll. The wind generated inside the inner rotating cylinder will rush out from the arc groove, air outlet and hollow mesh, which will increase the dispersion effect of atomization. Attached Figure Description

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is a schematic diagram of the overall structure according to an embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the auxiliary part structure according to an embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram of the connection structure between the inner rotating cylinder and the flow guiding ring according to an embodiment of the present invention;

[0036] Figure 4This is a schematic diagram of the barrel structure according to an embodiment of the present invention;

[0037] Figure 5 This is a schematic diagram of the inner rotating cylinder structure according to an embodiment of the present invention.

[0038] In the picture:

[0039] 1. Support platform; 2. Support legs; 3. Water tank; 4. Auxiliary part; 5. Water collection tank; 6. Water inlet hopper; 7. Connecting pipe one; 8. Connecting pipe four; 9. Bracket; 10. Cannon barrel; 11. Connecting pipe two; 12. Water pump; 13. Connecting pipe three; 14. Atomizing head; 15. Hollow mesh; 16. Inner rotating cylinder; 17. Arc groove; 18. Limiting rod; 19. Guide ring; 20. Secondary gear; 21. Disc; 22. Main gear 23. Driver; 24. Fan blade; 25. Air outlet; 26. Water tank; 27. Pump; 28. Piston; 29. ​​Inverted U-shaped bracket; 30. Lifting rod; 31. L-shaped frame; 32. Support column; 33. Motor; 34. Turntable; 35. Drive arm; 36. Pressure rod; 37. U-shaped clamping block end one; 38. Middle block; 39. U-shaped clamping block end two; 40. Support rod; 41. U-shaped clamping block end three; 42. Clamping block. Detailed Implementation

[0040] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0041] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0042] Example 1

[0043] like Figure 1-Figure 5 As shown in the document:

[0044] This invention provides a dust suppression device for construction work, comprising a support platform 1, with several support legs 2 at the bottom of the support platform 1. From left to right, the top of the support platform 1 is provided with a water tank 3, an auxiliary section 4, and a water collection tank 5. A water inlet 6 is located at the top of the water collection tank 5. The bottom of the water collection tank 5 is connected to the auxiliary section 4 via a connecting pipe 7. The upper part of the auxiliary section 4 is connected to the water tank 3 via a connecting pipe 8. A bracket 9 is located on the top of the water tank 3 away from the auxiliary section 4. A cannon 10 is mounted on the bracket 9. A connecting pipe 11 is connected to one side of the cannon 10 near the auxiliary section 4. A water pump 12 is connected to the other side of the connecting pipe 11 away from the cannon 10. A connecting pipe 13 is connected to the other side of the water pump 12. The other side of the connecting pipe 13 is connected to the lower side of the water tank 3. The device is equipped with an atomizing head 14, inside which is a perforated mesh 15. To the right of the perforated mesh 15, inside the barrel 10, is an inner rotating cylinder 16. The inner rotating cylinder 16 has several arc-shaped grooves 17. Above and below the arc-shaped grooves 17, there are corresponding limiting rods 18. The outer end of the limiting rods 18 is equipped with a guide ring 19. On the side of the inner rotating cylinder 16 away from the perforated mesh 15, there is a secondary gear 20. On the side of the secondary gear 20 away from the barrel 10, there is a disc 21. The disc 21 is engaged with the right end of the barrel 10. Below the secondary gear 20, on the lower side of the disc 21, there is a meshing main gear 22. A shaft is inserted through the middle of the main gear 22. The shaft passes through the disc 21 and is connected to a driver 23 installed on the other side of the disc 21. Inside the inner rotating cylinder 16, on the side of the secondary gear 20, there is a fan blade 24.

[0045] The inner rotating cylinder 16 has several air outlets 25 on its surface. The secondary gear 20 has a rotating shaft in the middle of the side away from the inner rotating cylinder 16. The side of the rotating shaft away from the secondary gear 20 is movably connected to the side of the disc 21. The top of the water tank 3 has a water inlet on the side near the auxiliary part 4. The bottom of the water tank 3 on the side away from the auxiliary part 4 has a water outlet. The water inlet and the water outlet are respectively provided with end caps.

[0046] Additionally, the support platform 1 has a through hole in the middle, and the auxiliary part 4 includes a water storage tank 26. A water pump 27 is located at the top center of the water storage tank 26, and a water outlet is located at the bottom center of the water pump 27. The water outlet connects the water pump 27 to the interior of the water storage tank 26. A matching piston 28 is located inside the water pump 27, and an inverted U-shaped bracket 29 is located on the top of the piston 28. A lifting rod 30 is located on the inverted U-shaped bracket 29, and the lifting rod 30 passes through the top of the water pump 27. An L-shaped frame 31 is located on the upper part of the lifting rod 30. The bottom of the L-shaped frame 31 is fixed to the top side of the pumping cylinder 27. A connecting pipe 4 8 is connected to the upper part of the pumping cylinder 27 near the barrel 10. The other end of the connecting pipe 4 8 is connected to the top side of the water tank 3. The water storage tank 26 is inserted into the through hole. A connecting pipe 1 7 is connected to the side of the water storage tank 26 away from the water tank 3. The side of the connecting pipe 1 7 away from the water storage tank 26 passes through the support platform 1 and the water collection tank 5, providing a through connection. A support column 32 is provided on the top side of the support platform 1, located between the water storage tank 26 and the water collection tank 5. A motor 33 is located near the center on the side. An output shaft is connected to the output end of the motor 33 and passes through the support column 32. A turntable 34 is located on the side of the output shaft away from the motor 33. A drive arm 35 is located at the end of the turntable 34 away from the support column 32. A pressure rod 36 is located at the other end of the drive arm 35 corresponding to the side of the support column 32. A U-shaped clamping block end 37 is located at the end of the pressure rod 36 away from the drive arm 35. A middle block 38 is located in the U-groove of the U-shaped clamping block end 37. A lifting rod 30 passes through the middle block 38. 8. The pressure rod 36 is provided with a U-shaped clamping block end 39 on the lower part of the side near the first U-shaped clamping block end 37. The bottom of the second U-shaped clamping block end 39 is provided with a support rod 40. The bottom of the support rod 40 is provided with a U-shaped clamping block end 41. The U-shaped clamping block end 41 is provided with a clamping block 42 in the U-groove. The left side of the clamping block 42 is fixed to the upper side of the pumping cylinder 27. The middle of the piston 28 is provided with a second water outlet. The second water outlet and the first water outlet are respectively provided with a valve 1 and a valve 2. The valve 1 and the valve 2 are connected separately. The piston 28 is set as a double-layer structure.

[0047] The bottom of the water storage tank 26 is supported on the ground. The top center of the water storage tank 26 is provided with a water outlet, and a valve is provided on the water outlet. The middle of the piston 28 is provided with a water outlet, and a valve is provided on the water outlet. The upper part of the lifting rod 30 passes through the L-shaped frame 31. When the pressure rod 36 swings left and right, it will pull the lifting rod 30 up and down. After the lifting rod 30 moves up and down, it pulls the piston 28 to achieve positive and negative pressure in the water pump 27, which will draw water from the water storage tank 26 and enter the water tank 3 through the connecting pipe 4 8.

[0048] A turntable can be set at the bottom center of the support 9. The bottom of the turntable is equipped with a drive motor. The connecting pipe 11 can be divided into two parts, including a guide tube and a hose. When the barrel 10 rotates at an angle with the support 9, it will pull the hose to move.

[0049] The perforated mesh 15 is embedded in the inner groove set in the inner wall of the atomizing head 14. The right side of the secondary gear 20 is movably connected to the side of the disc 21 via a shaft. The disc 21 is fixed on the right side of the inner wall of the barrel 10. The surface of the inner rotating cylinder 16 is provided with an arc-shaped groove 17 and several air outlet holes 25.

[0050] Example 2

[0051] A method for dust control during construction includes the following steps:

[0052] S101: Turn on the water pump 12 to pump the water in the water tank 3 into the cannon barrel 10;

[0053] S103: Drive the driver 23 to run, and the driver 23 drives the main gear 22 to rotate;

[0054] S105: The main gear 22 drives the secondary gear 20 to rotate, and the rotation of the secondary gear 20 drives the inner rotating cylinder 16 connected to the side to rotate.

[0055] S107: After the inner rotating cylinder 16 rotates, the arc-shaped groove 17 on the surface will drive the internally inserted limiting rod 18 to slide. The limiting rod 18 is inserted at both the upper and lower parts of the arc-shaped groove 17.

[0056] S109: When the limit rod 18 slides along the arc groove 17, it slides to the surrounding area or to the center at the same time, along with the connected guide ring 19.

[0057] S1011: As the secondary gear 20 rotates, it drives the fan blades 24 connected to the inner wall. The wind generated by the rotation of the fan blades 24 is dispersed through the arc grooves 17 and air outlets 25 on the inner rotating cylinder 16 wall. At the same time, under the movement of the expansion and merging of the guide ring 19, the water entering the interior is driven to flow, and then the dispersed water is sprayed out through the atomizing head 14 to suppress the dust generated by the external construction site.

[0058] S1013: When it rains, rainwater is collected in the water collection tank 5;

[0059] S1015: Water is introduced into the water storage tank 26 through the connecting pipe 7;

[0060] S1017: The water stored in the water storage tank 26 is introduced into the water tank 3 through the auxiliary unit 4.

[0061] Detailed usage and function of this embodiment:

[0062] Turn on the water pump 12 to pump water from the water tank 3 into the cannon barrel 10, driving the driver 23 to operate. The driver 23 drives the main gear 22 to rotate, which in turn drives the secondary gear 20 to rotate. The secondary gear 20 then drives the inner rotating cylinder 16 connected to the side. After the inner rotating cylinder 16 rotates, the arc-shaped groove 17 on its surface causes the upper and lower intersecting limiting rods 18 to slide. The limiting rods 18 carry the connected guide rings 19, which slide to the sides or towards the center. When the guide rings 19 expand or close, they bring up the water that has entered from inside. The water is compressed or pushed, and in its... Internally, the secondary gear 20 rotates, simultaneously driving the fan blades 24 connected to the side. The fan blades 24 move accordingly, generating wind that rushes out from the arc-shaped groove 17 and the air outlet 25. During the unfolding and merging of the guide rings 19, the water entering is carried in. The size of the guide rings 19 increases from left to right. As these guide rings 19 of different sizes unfold or merge, the water inside flows in the cannon barrel 10, and then the water dispersed inside is sprayed out through the atomizing head 14 to suppress dust generated at the external construction site.

[0063] When it rains, rainwater enters the collection tank 5 from the inlet 6. A one-way valve is installed at the upper end of the connecting pipe 7. When the water in the collection tank 3 is insufficient, the water collected in the collection tank 5 is introduced into the storage tank 26 through the connecting pipe 7. The drive motor 33 runs, driving the turntable 34 to rotate. The rotation of the turntable 34 drives the drive arm 35 connected to the side end. The drive arm 35 pulls the pressure rod 36, which in turn pulls the lifting rod 30 up and down. As the lifting rod 30 moves up and down, it pulls the piston 2. 8. When the piston 28 moves up and down inside the pumping cylinder 27, positive and negative pressures are generated inside the pumping cylinder 27. When the piston 28 moves up, valve 1 opens, and valve 2 on the piston 28 closes under the action of compression. At this time, water in the storage tank 26 is pumped up. When the piston 28 moves down, valve 1 blocks the outlet at the bottom of the pumping cylinder 27, and valve 2 on the piston 28 opens, pushing the water pumped up and introducing it into the water tank 3 through the connecting pipe 4 8 to replenish the water in the water tank 3.

[0064] Through the specific embodiments described above, those skilled in the art can easily implement the present invention. However, it should be understood that the present invention is not limited to the specific embodiments described above. Based on the disclosed embodiments, those skilled in the art can arbitrarily combine different technical features to achieve different technical solutions.

Claims

1. A dust suppression device for construction sites, characterized in that, Includes a support platform (1), the bottom of the support platform (1) is provided with several support feet (2), the top of the support platform (1) is provided with a water tank (3), an auxiliary part (4) and a water collection tank (5) from left to right, the top of the water collection tank (5) is provided with a water inlet hopper (6), the bottom of the water collection tank (5) is connected to the auxiliary part (4) through a connecting pipe one (7), the upper part of the auxiliary part (4) is connected to the water tank (3) through a connecting pipe four (8), the top of the water tank (3) is provided with a bracket (9) on the side away from the auxiliary part (4), the bracket (9) is provided with a cannon barrel (10), the side of the cannon barrel (10) close to the auxiliary part (4) is connected to a connecting pipe two (11), the side of the connecting pipe two (11) away from the cannon barrel (10) is connected to a water pump (12), the other side of the water pump (12) is connected to a connecting pipe three (13), the other side of the connecting pipe three (13) is connected to the lower side of the water tank (3); Atomizing head (14) is provided on the side of the cannon barrel (10) away from the auxiliary part (4). A perforated mesh (15) is provided inside the atomizing head (14). An inner rotating cylinder (16) is provided on the right side of the perforated mesh (15) inside the cannon barrel (10). Several arc-shaped grooves (17) are provided on the inner rotating cylinder (16). A matching limiting rod (18) is provided above and below the arc-shaped grooves (17). A guide ring (19) is provided at the outer end of the limiting rod (18). A secondary gear is provided on the side of the inner rotating cylinder (16) away from the perforated mesh (15). 20), a disc (21) is provided on the side of the secondary gear (20) away from the barrel (10). The disc (21) is snapped into the right end of the barrel (10). A main gear (22) is provided below the secondary gear (20) on the lower side of the disc (21). A shaft is inserted in the middle of the main gear (22). The shaft passes through the disc (21) and is connected to the driver (23) installed on the other side of the disc (21). A fan blade (24) is provided inside the inner rotating cylinder (16) on the side of the secondary gear (20).

2. The dust suppression device for construction sites according to claim 1, characterized in that, The inner rotating cylinder (16) has several air outlets (25) on its surface. The secondary gear (20) has a rotating shaft in the middle of the side away from the inner rotating cylinder (16). The side of the rotating shaft away from the secondary gear (20) is movably connected to the side of the disc (21).

3. A dust suppression device for construction sites according to claim 2, characterized in that, The water tank (3) has an inlet on the top side near the auxiliary part (4) and an outlet on the bottom side away from the auxiliary part (4). The inlet and outlet are respectively provided with end caps.

4. A dust suppression device for construction sites according to claim 3, characterized in that, The support platform (1) has a through hole in the middle. The auxiliary part (4) includes a water tank (26). A pumping cylinder (27) is provided at the top center of the water tank (26). A water outlet is provided at the bottom center of the pumping cylinder (27). The water outlet connects the pumping cylinder (27) and the interior of the water tank (26). A matching piston (28) is provided inside the pumping cylinder (27). An inverted U-shaped bracket (29) is provided at the top of the piston (28). A lifting rod (30) is provided on the inverted U-shaped bracket (29). The lifting rod (30) passes through the top of the pumping cylinder (27). An L-shaped frame (31) is provided on the upper part of the lifting rod (30). The bottom of the L-shaped frame (31) is fixed to one side of the top of the pumping cylinder (27).

5. A dust suppression device for construction sites according to claim 4, characterized in that, The upper part of the pumping cylinder (27) near the barrel (10) is connected to the connecting pipe four (8), and the other end of the connecting pipe four (8) is connected to the top side of the water tank (3). The water storage tank (26) is inserted into the through hole. The side of the water storage tank (26) away from the water tank (3) is connected to the connecting pipe one (7). The side of the connecting pipe one (7) away from the water storage tank (26) passes through the support platform (1) and is connected to the inside of the water collection tank (5).

6. A dust suppression device for construction sites according to claim 5, characterized in that, The top of the support platform (1) is located between the water storage tank (26) and the water collection tank (5) and is provided with a support column (32). A motor (33) is provided on the side of the support column (32) near the center. The output end of the motor (33) is connected to an output shaft, which passes through the support column (32). A turntable (34) is provided on the side of the output shaft away from the motor (33). A drive arm (35) is provided on the side end of the turntable (34) away from the support column (32). A pressure rod (36) is provided at the other end of the drive arm (35) corresponding to the side of the support column (32). A U-shaped clamping block end (37) is provided at the end of the pressure rod (36) away from the drive arm (35). A middle block (38) is provided in the U-groove of the U-shaped clamping block end (37). A lifting rod (30) passes through the middle block (38).

7. A dust suppression device for construction sites according to claim 6, characterized in that, The pressure rod (36) has a U-shaped clamping end two (39) on the lower part of the side near the U-shaped clamping end one (37). The bottom of the U-shaped clamping end two (39) has a support rod (40). The bottom of the support rod (40) has a U-shaped clamping end three (41). The U-shaped clamping end three (41) has a clamping block (42) in the U-groove. The left side of the clamping block (42) is fixed to the upper side of the pumping cylinder (27).

8. A dust suppression device for construction sites according to claim 7, characterized in that, The piston (28) has a second outlet in the middle. The second outlet and the first outlet are respectively equipped with valve one and valve two. Valve one and valve two are connected separately. The piston (28) is configured as a double-layer structure.

9. A method for dust suppression during construction, characterized in that, The construction dust suppression device according to claim 8 comprises the following steps: Turn on the water pump (12) to pump the water in the water tank (3) into the cannon barrel (10); The drive driver (23) is running, and the drive driver (23) drives the main gear (22) to rotate; The main gear (22) drives the secondary gear (20) to rotate, and the rotation of the secondary gear (20) drives the inner rotating cylinder (16) connected to the side to rotate. After the inner rotating cylinder (16) rotates, the arc groove (17) set on the surface will drive the internally inserted limiting rod (18) to slide. Since the limiting rod (18) is inserted in the upper and lower parts of the arc groove (17). As the limiting rod (18) slides along the arc groove (17), it slides to the surrounding area or to the center at the same time, along with the connected guide ring (19). While the secondary gear (20) rotates, it drives the fan blades (24) connected to the inner wall. The wind generated by the rotation of the fan blades (24) is dispersed by the arc groove (17) on the inner rotating cylinder (16) wall and the air outlet (25). At the same time, under the movement of the expansion and merging of the guide ring (19), the water entering the interior is driven to flow, and then the dispersed water is sprayed out through the atomizing head (14) to reduce dust generated at the external construction site. When it rains, the rainwater is collected in the collection tank (5); Water is introduced into the water storage tank (26) through the connecting pipe (7); Water stored in the water storage tank (26) is introduced into the water tank (3) through the auxiliary part (4).

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