Building construction dust falling device and dust falling method

Abstract

The invention relates to the technical field of spraying dust fall, and discloses a building construction dust fall device and a dust fall method.The building construction dust fall device comprises a supporting table, a plurality of supporting legs are arranged at the bottom of the supporting table, a water tank, an auxiliary part and a water collecting tank are sequentially arranged at the top of the supporting table from left to right, and a water inlet hopper is arranged at the top of the water collecting tank; a support is arranged on the side, away from the auxiliary part, of the top of the water tank, a gun barrel is arranged on the support, a second connecting pipe is connected to the side, close to the auxiliary part, of the gun barrel, and a water pump is connected to the side, away from the gun barrel, of the second connecting pipe. The other side of the water pump is connected with a third connecting pipe, and the other side of the third connecting pipe is connected with the lower portion of the side edge of the water tank. An atomizing head is arranged on the side, away from the auxiliary part, of the gun barrel, a hollowed-out net is arranged in the atomizing head, a plurality of arc-shaped grooves are formed in the inner rotating barrel, sprayed water mist is blown away, and therefore the dust falling effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of spray dust reduction, and in particular to a construction dust reduction device and a dust reduction method. Background Art

[0002] With the rapid development of urban construction, building construction is also increasing rapidly. A large amount of dust will be generated during the construction process, which has caused great damage to the environment and seriously affected the air quality. At present, fog cannons and other similar atomization equipment have been widely used on construction sites to reduce dust by spraying water mist, which has achieved certain results.

[0003] In the prior art, the fog cannon includes a machine base, a mounting frame arranged on the machine base, and a wind tube arranged on the mounting frame. A water outlet is arranged at one end of the wind tube. A high-pressure pump for pumping water to the water outlet is also arranged in the machine base. A fan for blowing out the water mist is also arranged in the wind tube. A rotating shaft is arranged on the lower end surface of the mounting frame. The mounting frame is rotatably connected to the machine base through the rotating shaft. The axis of the rotating shaft is arranged vertically. A driving component for driving the mounting frame to reciprocate along the rotating axis is also arranged on the machine base.

[0004] With respect to the above-mentioned related technologies, the existing fog cannons have been supplied with tap water. If the water in the water tank is not replenished in time during the dust reduction treatment, the dust reduction treatment will be affected, and it is necessary to wait for the shortage of tap water. This increases the work procedures and troubles, and may cause a waste of water resources. Summary of the invention

[0005] The technical task of the present invention is to provide a construction dust reduction device and a dust reduction method to solve the above problems.

[0006] The technical solution of the present invention is achieved in this way:

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

[0008] It includes: a support platform, several support feet are provided at the bottom of the support platform, a water tank, an auxiliary part and a water collection tank are sequentially arranged on the top of the support platform from left to right, a water inlet hopper is provided at the top of the water collection tank, the bottom of the water collection tank is connected to the auxiliary part through a first connecting pipe, the upper part of the auxiliary part is connected to the water tank through a fourth connecting pipe, a bracket is provided on the top of the water tank on the side far from the auxiliary part, a cannon barrel is provided on the bracket, a second connecting pipe is connected to one side of the cannon barrel close to the auxiliary part, a water pump is connected to the other side of the second connecting pipe far from the cannon barrel, a third connecting pipe is connected to the other side of the water pump, and the other side of the third connecting pipe is connected to the lower part of the side of the water tank; an atomizing head is provided on the side of the cannon barrel far from the auxiliary part, a hollow net is provided in the atomizing head, an inner rotating cylinder is provided in the cannon barrel on the right side of the hollow net, several arc-shaped grooves are provided on the inner rotating cylinder, limiting rods are provided above and below the arc-shaped grooves in a matching manner, a diversion ring is provided at the outer end of the limiting rod, a secondary gear is provided on the side of the inner rotating cylinder far from the hollow net, a disc is provided on the side of the secondary gear far from the cannon barrel, the disc is clamped at the right end of the inner side of the cannon barrel, a main gear meshing with the secondary gear is provided at the lower part of the side of the disc below the secondary gear, a shaft is inserted through the middle of the main gear, the shaft passes through the disc and is connected to a driver installed on the other side of the disc, and a fan blade is provided on the side of the inner rotating cylinder inside the inner rotating cylinder at the position of the secondary gear.

[0009] Preferably, several air outlet holes are provided on the surface of the inner rotating cylinder, a rotating shaft is provided in the middle of the side of the secondary gear far from the inner rotating cylinder, and the side of the rotating shaft far from the secondary gear is movably connected to the side of the disc.

[0010] Preferably, a water inlet is provided on the top of the water tank on the side close to the auxiliary part, a water outlet is provided at the bottom of the side of the water tank far from the auxiliary part, and end covers are respectively provided on the water inlet and the water outlet.

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

[0012] Preferably, a fourth connecting pipe is connected to the upper part of the side of the water pumping cylinder close to the cannon barrel, the other end of the fourth connecting pipe is connected to one side of the top of the water tank, the water storage tank is inserted in the through hole, a first connecting pipe is connected to the side of the water storage tank far from the water tank, and the side of the first connecting pipe far from the water storage tank penetrates through the support platform and is connected to the inside of the water collection tank in a penetrating manner.

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

[0014] Preferably, a U-shaped clamping block end two is provided at the lower part of the side of the pressing rod close to the U-shaped clamping block end one. A support rod is provided at the bottom of the U-shaped clamping block end two. A U-shaped clamping block end three is provided at the bottom of the support rod. A clamping block is provided in the U-shaped groove of the U-shaped clamping block end three. The left side of the clamping block is fixed at the upper part of the side of the water pumping cylinder.

[0015] Preferably, a water outlet two is provided in the middle of the piston. A valve one and a valve two are respectively provided on the water outlet two and the water outlet one. The valve one and the valve two are separately connected. The piston is arranged in a double-layer structure.

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

[0017] Including the following steps:

[0018] Turn on the water pump, and pump the water in the water tank into the cannon through the water pump;

[0019] Drive the driver to operate, and the driver drives the main gear to rotate;

[0020] The main gear drives the secondary gear to rotate. After the secondary gear rotates, it drives the inner rotating cylinder connected to the side to rotate;

[0021] After the inner rotating cylinder rotates, the arc-shaped groove provided on the surface will drive the limiting rod inserted inside to slide. Since the limiting rods are respectively inserted in the upper part and the lower part of the arc-shaped groove;

[0022] When the limiting rod slides along with the arc-shaped groove, it drives the connected diversion ring to slide in all directions or towards the middle at the same time;

[0023] While the secondary gear rotates, it drives the fan blades connected to the inner wall. The wind generated after the fan blades rotate is dispersed along with the arc-shaped groove and the air outlet holes on the inner wall of the inner rotating cylinder. At the same time, under the movement of the expansion and combination of the diversion ring, the water body entering the interior is driven to flow, and then the dispersed water body is sprayed out through the atomizing head to perform dust reduction treatment on the dust generated at the external building construction site;

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

[0025] Introduce the water into the water storage tank through the connecting pipe one;

[0026] Water stored in the water storage tank is introduced into the water tank through the auxiliary part.

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

[0028] 1. When it is necessary to carry out dust suppression treatment on the dust generated at the construction site, the water in the water tank is pumped into the barrel. When the diversion ring inside the barrel moves towards the surroundings or towards the middle at the same time, a compression movement will be generated inside. The water body entering inside will increase the rolling fluidity with the compression movement. The water body is dispersed during the compression movement and, in cooperation with the wind generated by the fan blades in the inner rotating cylinder, promotes the dispersion of the sprayed water mist, thereby improving the dust suppression effect.

[0029] 2. When the water in the water tank is insufficient, the water collected by the water collection tank is introduced into the water tank through the auxiliary part to provide water source inside the water tank. The water collection tank collects rainwater, reduces the use of tap water, and reduces the waste of water resources.

[0030] 3. The water tank and the water collection tank are connected through the auxiliary part. The auxiliary part mainly plays a buffering role to prevent the collected rainwater from being poured into the water tank all at once, which may cause a burden on the water tank. Through the buffered transportation of the auxiliary part, the water can be transported according to the demand, reducing the waste of water source.

[0031] 4. The distance between the diversion rings is the same. When the diversion rings are in the expansion or merging movement, the compression movement between adjacent ones will be adjusted along with the diversion rings on both sides. The compression movement generated inside will drive the flowing water body to roll. The wind generated inside the inner rotating cylinder rushes out from the arc-shaped grooves, air outlet holes, and hollow meshes, increasing the dispersion effect of atomization. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 is the overall structural schematic diagram according to the embodiment of the present invention;

[0034] Figure 2 is the structural schematic diagram of the auxiliary part according to the embodiment of the present invention;

[0035] Figure 3 is the connection structural schematic diagram between the inner rotating cylinder and the diversion ring according to the embodiment of the present invention;

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

[0037] Figure 5 Schematic diagram of an inner rotating cylinder structure according to an embodiment of the present invention.

[0038] In the figure:

[0039] 1. Support platform; 2. Support feet; 3. Water tank; 4. Auxiliary part; 5. Water collection tank; 6. Water inlet hopper; 7. First connecting pipe; 8. Fourth connecting pipe; 9. Bracket; 10. Barrel; 11. Second connecting pipe; 12. Water pump; 13. Third connecting pipe; 14. Atomizing head; 15. Hollowed-out net; 16. Inner rotating cylinder; 17. Arc-shaped groove; 18. Limiting rod; 19. Flow guiding ring; 20. Secondary gear; 21. Disc; 22. Main gear; 23. Driver; 24. Fan blade; 25. Air outlet hole; 26. Water storage tank; 27. Water pumping cylinder; 28. Piston; 29. Inverted U-shaped bracket; 30. Pull rod; 31. L-shaped frame; 32. Support column; 33. Motor; 34. Turntable; 35. Driving arm; 36. Pressing rod; 37. First end of U-shaped clamping block; 38. Intermediate block; 39. Second end of U-shaped clamping block; 40. Support rod; 41. Third end of U-shaped clamping block; 42. Clamping block. Detailed implementation manners

[0040] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

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

[0042] Embodiment 1

[0043] As Figures 1-5 shown in

[0044] The present invention provides a dust reduction device for building construction, which includes a support platform 1. A number of support feet 2 are provided at the bottom of the support platform 1. On the top of the support platform 1, a water tank 3, an auxiliary part 4 and a water collection tank 5 are successively arranged from left to right. An inlet hopper 6 is provided at the top of the water collection tank 5. The bottom of the water collection tank 5 is connected to the auxiliary part 4 through a first connecting pipe 7. The upper part of the auxiliary part 4 is connected to the water tank 3 through a fourth connecting pipe 8. A bracket 9 is provided on the top of the water tank 3 on the side far from the auxiliary part 4. A cannon barrel 10 is provided on the bracket 9. A second connecting pipe 11 is connected to one side of the cannon barrel 10 close to the auxiliary part 4. The side far from the cannon barrel 10 of the second connecting pipe 11 is connected to a water pump 12. The other side of the water pump 12 is connected to a third connecting pipe 13. The other side of the third connecting pipe 13 is connected to the lower part of the side of the water tank 3. A atomizing head 14 is provided on the side of the cannon barrel 10 far from the auxiliary part 4. A hollow net 15 is provided inside the atomizing head 14. An inner rotating cylinder 16 is provided inside the cannon barrel 10 on the right side of the hollow net 15. A number of arc-shaped grooves 17 are provided on the inner rotating cylinder 16. Limiting rods 18 which are matched with each other are provided above and below the arc-shaped grooves 17. A diversion ring 19 is provided at the outer end of the limiting rod 18. A secondary gear 20 is provided on the side of the inner rotating cylinder 16 far from the hollow net 15. A disc 21 is provided on the side of the secondary gear 20 far from the cannon barrel 10. The disc 21 is clamped at the right end part inside the cannon barrel 10. A main gear 22 which is meshed with the secondary gear 20 is provided at the lower part of the side of the disc 21 below the secondary gear 20. 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. A fan blade 24 is provided on the side of the inner part of the inner rotating cylinder 16 beside the secondary gear 20.

[0045] Wherein, a number of air outlet holes 25 are provided on the surface of the inner rotating cylinder 16. A rotating shaft is provided in the middle of the side of the secondary gear 20 far from the inner rotating cylinder 16. The side far from the secondary gear 20 of the rotating shaft is movably connected to the side of the disc 21. An inlet is provided on the top of the water tank 3 on the side close to the auxiliary part 4. An outlet is provided at the bottom of the side of the water tank 3 far from the auxiliary part 4. End covers are respectively provided on the inlet and the outlet.

[0046] In addition, a through hole is provided in the middle of the support table 1. The auxiliary part 4 includes a water storage tank 26. At the center of the top of the water storage tank 26, a water pumping cylinder 27 is provided. At the center of the bottom of the water pumping cylinder 27, a first water outlet is provided. The first water outlet connects the inside of the water pumping cylinder 27 and the water storage tank 26 in a through manner. A piston 28 that matches is provided in the water pumping cylinder 27. At the top of the piston 28, an inverted U-shaped bracket 29 is provided. On the inverted U-shaped bracket 29, a lifting rod 30 is provided. The lifting rod 30 penetrates through the top of the water 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 on one side of the top of the water pumping cylinder 27. A fourth connecting pipe 8 is connected to the upper part of the water pumping cylinder 27 near the gun barrel 10. The other end of the fourth connecting pipe 8 is connected to one side of the top of the water tank 3. The water storage tank 26 is inserted in the through hole. A first connecting pipe 7 is connected to the side of the water storage tank 26 away from the water tank 3. The side of the first connecting pipe 7 away from the water storage tank 26 penetrates through the support table 1 and is connected to the inside of the water collection tank 5 in a through manner. On one side between the water storage tank 26 and the water collection tank 5 at the top of the support table 1, a support column 32 is provided. Near the center of the side of the support column 32, a motor 33 is provided. The output end of the motor 33 is connected to an output shaft. The output shaft penetrates through the support column 32. On the side of the output shaft away from the motor 33, a turntable 34 is provided. At the end of the side of the turntable 34 away from the support column 32, a driving arm 35 is provided. At the other end of the driving arm 35 corresponding to one side of the support column 32, a pressing rod 36 is provided. At the end of the pressing rod 36 away from the driving arm 35, a first U-shaped clamping block end 37 is provided. In the U-shaped groove of the first U-shaped clamping block end 37, an intermediate block 38 is provided. The lifting rod 30 penetrates through the intermediate block 38. On the lower part of the side of the pressing rod 36 close to the first U-shaped clamping block end 37, a second U-shaped clamping block end 39 is provided. At the bottom of the second U-shaped clamping block end 39, a support rod 40 is provided. At the bottom of the support rod 40, a third U-shaped clamping block end 41 is provided. In the U-shaped groove of the third U-shaped clamping block end 41, a clamping block 42 is provided. The left side of the clamping block 42 is fixed on the upper part of the side of the water pumping cylinder 27. A second water outlet is provided in the middle of the piston 28. A first valve and a second valve are respectively provided on the first water outlet and the second water outlet. The first valve and the second valve are separately connected. The piston 28 is arranged in a double-layer structure.

[0047] The bottom of the water storage tank 26 is supported on the ground. A first water outlet is provided at the center of the top of the water storage tank 26, and a first valve is provided on the first water outlet. A second water outlet is provided in the middle of the piston 28, and a second valve is provided on the second water outlet. The upper part of the lifting rod 30 penetrates through the L-shaped frame 31. When the pressing rod 36 swings left and right, it will lift 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 pumping cylinder 27, pumping the water in the water storage tank 26 up and entering the water tank 3 through the fourth connecting pipe 8.

[0048] A turntable can be provided at the center of the bottom of the bracket 9. A driving motor is provided at the bottom of the turntable. The second connecting pipe 11 can be composed of two parts, including a conduit and a hose. When the gun barrel 10 rotates at an angle along with the bracket 9, it will pull the hose to move.

[0049] The hollow net 15 is embedded in the inner groove provided on 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 through a shaft, and the disc 21 is fixed to 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 a plurality of air outlet holes 25.

[0050] Embodiment Two

[0051] A dust reduction method for building construction includes the following steps:

[0052] S101: Turn on the water pump 12, and pump the water in the water tank 3 into the barrel 10 through the water pump 12;

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

[0054] S105: The main gear 22 drives the secondary gear 20 to rotate. After the secondary gear 20 rotates, it 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 provided on the surface will drive the limiting rod 18 inserted inside to slide. Since the limiting rod 18 is respectively inserted in the upper and lower parts of the arc-shaped groove 17;

[0056] S109: When the limiting rod 18 slides along with the arc-shaped groove 17, it drives the connected diversion ring 19 to slide in all directions or towards the middle at the same time;

[0057] S1011: While the secondary gear 20 rotates, it drives the fan blade 24 connected to the inner wall. The wind generated after the fan blade 24 rotates is dispersed along with the arc-shaped groove 17 and the air outlet holes 25 on the wall of the inner rotating cylinder 16. At the same time, under the movement of the expansion and combination of the diversion ring 19, the water body entering the interior is driven to flow, and then the dispersed water body is sprayed out through the atomizing head 14 to perform dust reduction treatment on the dust generated at the external building construction site;

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

[0059] S1015: Introduce the water into the storage tank 26 through the connecting pipe 1 7;

[0060] S1017: Introduce the water stored in the storage tank 26 into the water tank 3 through the auxiliary part 4.

[0061] The detailed usage method and function of this embodiment:

[0062] Turn on the water pump 12, pump the water in the water tank 3 into the barrel 10 through the water pump 12, drive the driver 23 to operate, the driver 23 drives the main gear 22 to rotate, after the main gear 22 rotates, it drives the secondary gear 20 to rotate, and the secondary gear 20 drives the internally rotating cylinder 16 connected to the side. After the internally rotating cylinder 16 rotates, the arc-shaped groove 17 on the surface drives the limiting rods 18 inserted above and below to slide. The limiting rods 18 drive the connected diversion ring 19, and the diversion ring 19 slides around or towards the middle at the same time. After the diversion ring 19 expands or merges, it will lift the water entering inside. The water body is compressed or pushed and rolls inside it. After the secondary gear 20 rotates, it simultaneously drives the fan blade 24 connected to the side. The fan blade 24 moves accordingly, and the generated wind rushes out from the arc-shaped groove 17 and the air outlet holes 25. During the process of the diversion ring 19 expanding and merging, it will carry the entering water body. Among them, the size of the diversion ring 19 increases successively from left to right. When the internal water body moves with these diversion rings 19 of different sizes during expansion or merging, it will lift the water body to flow in the barrel 10, and then spray out the water body dispersed inside through the atomizing head 14 to carry out dust reduction treatment on the dust generated at the external building construction site.

[0063] When it rains, the rainwater will enter the water collection tank 5 from the water inlet hopper 6. A one-way valve is provided at the upper end of the first connecting pipe 7. When the water in the water tank 3 is insufficient, the water collected in the water collection tank 5 is introduced into the water storage tank 26 through the first connecting pipe 7. Drive the motor 33 to operate, the motor 33 drives the turntable 34 to rotate. After the turntable 34 rotates, it will drive the driving arm 35 connected to the side end. The driving arm 35 pulls the pressure rod 36, and the pressure rod 36 will pull the lifting rod 30 to move up and down. When the lifting rod 30 moves up and down, it will pull the piston 28 to move up and down in the water pumping cylinder 27. When the piston 28 moves up and down, positive and negative pressures will be generated in the water pumping cylinder 27. When the piston 28 moves up, the first valve opens, and the second valve on the piston 28 closes under the action of compression. At this time, the water in the water storage tank 26 will be pumped up. When the piston 28 is pressed down, the first valve blocks the water outlet at the bottom of the water pumping cylinder 27, and the second valve on the piston 28 opens, and the water pumped up inside is pressed upwards and introduced into the water tank 3 through the fourth connecting pipe 8 to replenish the water volume inside the water tank 3.

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

Claims

1. A dust reduction device for building construction, characterized in that, It includes a support platform (1). A number of support feet (2) are provided at the bottom of the support platform (1). On the top of the support platform (1), a water tank (3), an auxiliary part (4) and a water collection tank (5) are successively arranged from left to right. An inlet hopper (6) is provided on the top of the water collection tank (5). The bottom of the water collection tank (5) is connected to the auxiliary part (4) through a first connecting pipe (7). The upper part of the auxiliary part (4) is connected to the water tank (3) through a fourth connecting pipe (8). On the top of the water tank (3), on the side far from the auxiliary part (4), a bracket (9) is provided. A barrel (10) is provided on the bracket (9). On one side of the barrel (10), close to the auxiliary part (4), a second connecting pipe (11) is connected. On the side of the second connecting pipe (11) far from the barrel (10), a water pump (12) is connected. On the other side of the water pump (12), a third connecting pipe (13) is connected. The other side of the third connecting pipe (13) is connected to the lower part of the side of the water tank (3). On the side of the barrel (10) far from the auxiliary part (4), an atomizing head (14) is provided. A hollow net (15) is provided inside the atomizing head (14). On the right side of the hollow net (15) and inside the barrel (10), an inner rotating cylinder (16) is provided. A number of arc-shaped grooves (17) are provided on the inner rotating cylinder (16). Limiting rods (18) which are matched with each other are provided above and below the arc-shaped grooves (17). A diversion ring (19) is provided at the outer end of the limiting rod (18). On the side of the inner rotating cylinder (16) far from the hollow net (15), a secondary gear (20) is provided. On the side of the secondary gear (20) far from the barrel (10), a disc (21) is provided. The disc (21) is clamped at the right end part inside the barrel (10). Below the secondary gear (20) and at the lower part of the side of the disc (21), a main gear (22) which meshes with it is provided. 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) and on the side of the secondary gear (20), a fan blade (24) is provided.

2. The dust reduction device for building construction according to claim 1, wherein A number of air outlet holes (25) are provided on the surface of the inner rotating cylinder (16). In the middle of the side of the secondary gear (20) far from the inner rotating cylinder (16), a rotating shaft is provided. The side of the rotating shaft far from the secondary gear (20) is movably connected to the side of the disc (21).

3. The dust reduction device for building construction according to claim 2, characterized in that, On the top of the water tank (3) and on the side close to the auxiliary part (4), a water inlet is provided. At the bottom of the side of the water tank (3) far from the auxiliary part (4), a water outlet is provided. End covers are respectively provided on the water inlet and the water outlet.

4. The dust reduction device for building construction according to claim 3, characterized in that, A through hole is provided in the middle of the support platform (1). The auxiliary part (4) includes a water storage tank (26). At the center of the top of the water storage tank (26), a pumping cylinder (27) is provided. At the center of the bottom of the pumping cylinder (27), a first water outlet is provided. The first water outlet connects the inside of the pumping cylinder (27) and the inside of the water storage tank (26). A piston (28) which is matched with it is provided inside the pumping cylinder (27). At the top of the piston (28), an inverted U-shaped bracket (29) is provided. 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). On the upper part of the lifting rod (30), an L-shaped frame (31) is provided. The bottom of the L-shaped frame (31) is fixed on one side of the top of the pumping cylinder (27).

5. The dust reduction device for building construction according to claim 4, characterized in that, On the upper part of the side of the water pump cylinder (27) close to the gun barrel (10), a fourth connecting pipe (8) is connected. The other end of the fourth connecting pipe (8) is connected to the top side of the water tank (3). The water storage tank (26) is inserted into the through hole. On the side of the water storage tank (26) away from the water tank (3), a first connecting pipe (7) is connected. The side of the first connecting pipe (7) away from the water storage tank (26) penetrates through the support platform (1) and is connected to the inside of the water collection tank (5) in a through manner.

6. The dust reduction device for building construction according to claim 5, characterized in that, On one side between the water storage tank (26) and the water collection tank (5) at the top of the support platform (1), a support column (32) is provided. Near the center on the side of the support column (32), a motor (33) is provided. The output end of the motor (33) is connected to an output shaft. The output shaft penetrates through the support column (32). On the side of the output shaft away from the motor (33), a turntable (34) is provided. At the end of the side of the turntable (34) away from the support column (32), a driving arm (35) is provided. At the other end of the side of the driving arm (35) corresponding to the support column (32), a pressure rod (36) is provided. At one end of the pressure rod (36) away from the driving arm (35), a first U-shaped clamping block end (37) is provided. Inside the U-shaped groove of the first U-shaped clamping block end (37), an intermediate block (38) is provided. The lifting pull rod (30) penetrates through the intermediate block (38).

7. An architectural construction dust reduction device according to claim 6, characterized in that, On the lower part of the side of the pressure rod (36) close to the first U-shaped clamping block end (37), a second U-shaped clamping block end (39) is provided. At the bottom of the second U-shaped clamping block end (39), a support rod (40) is provided. At the bottom of the support rod (40), a third U-shaped clamping block end (41) is provided. Inside the U-shaped groove of the third U-shaped clamping block end (41), a clamping block (42) is provided. The left side of the clamping block (42) is fixed to the upper part of the side of the water pump cylinder (27).

8. An architectural construction dust reduction device according to claim 7, characterized in that, In the middle of the piston (28), a second water outlet is provided. A first valve and a second valve are respectively provided on the first water outlet and the second water outlet. The first valve and the second valve are separately connected. The piston (28) is arranged in a double-layer structure.

9. A dust reduction method for building construction, characterized in that, For the construction dust reduction device according to claim 8, it includes the following steps: Turn on the water pump (12), and pump the water in the water tank (3) into the gun barrel (10) through the water pump (12); Drive the driver (23) to operate, and the driver (23) drives the main gear (22) to rotate; The main gear (22) drives the secondary gear (20) to rotate. After the secondary gear (20) rotates, it drives the inner rotating cylinder (16) connected to the side to rotate; After the inner rotating cylinder (16) rotates, the arc-shaped groove (17) provided on the surface will drive the limiting rod (18) inserted inside to slide. Since the limiting rods (18) are respectively inserted in the upper and lower parts of the arc-shaped groove (17); When the limiting rod (18) slides along with the arc-shaped groove (17), it drives the connected diversion ring (19) to slide in all directions or towards the middle at the same time; While the secondary gear (20) rotates, it drives the fan blades (24) connected to the inner wall. The wind generated after the fan blades (24) rotate is dispersed along with the arc-shaped groove (17) and the air outlet holes (25) on the wall of the inner rotating cylinder (16). At the same time, under the movement of the expansion and combination of the diversion ring (19), the water body entering the inside is driven to flow, and then the dispersed water body is sprayed out through the atomizing head (14) to perform dust reduction treatment on the dust generated at the external construction site; When it rains, rainwater is collected in the collection water tank (5); The water is introduced into the storage water tank (26) through the first connecting pipe (7); The water stored in the storage water tank (26) is introduced into the water tank (3) through the auxiliary part (4).

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