An adjustable dust suppression device for construction.

Abstract

This invention relates to the field of construction dust suppression technology, specifically an adjustable dust suppression device for building construction, comprising a housing, a water storage chamber fixedly installed at the bottom of the inner cavity of the housing, a preheating chamber disposed between the housing and the water storage chamber, a hot air structure installed inside the preheating chamber, two L-shaped piston tubes symmetrically installed at the upper end of the housing and communicating with the preheating chamber, a piston structure that can be pushed by the hot air structure installed inside the L-shaped piston tubes, and a guide pipe is installed at the lower end of one output end of the two L-shaped piston tubes, with a square groove opened on the upper surface of the guide pipe. This invention uses the hot air structure to push the piston structure, so that the hot air can melt the frozen nozzles. At the same time, when the nozzles cannot be melted smoothly, the sliding spray breaks the ice of the nozzles. During spraying, the sliding spray structure can also increase the density of the mist sprayed from the nozzles by pressurizing the space inside the baffle.

Description

Technical Field

[0001] This invention relates to the field of construction dust suppression technology, specifically an adjustable dust suppression device for building construction. Background Technology

[0002] Dust not only affects air quality but also poses a threat to the health of nearby residents. To effectively address dust pollution, construction water mist dust suppression technology has emerged. This technology sprays water mist, causing airborne dust particles to combine with the water mist particles and settle, thus achieving dust suppression.

[0003] However, in winter, due to the cold weather, the nozzles may freeze when using water mist dust suppression, which will cause the nozzles to malfunction or reduce the spray volume, thus affecting the dust suppression effect. At the same time, it is impossible to regularly change the density of the spray during the spraying process. Summary of the Invention

[0004] The purpose of this invention is to provide a subject matter that addresses the problems raised in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adjustable dust suppression device for building construction, comprising a housing, a water storage chamber fixedly installed at the bottom of the inner cavity of the housing, a preheating chamber provided between the housing and the water storage chamber, and a hot air structure installed inside the preheating chamber;

[0006] Two L-shaped piston tubes connected to the preheating chamber are symmetrically installed on the upper end of the housing. The L-shaped piston tubes are equipped with piston structures that can be pushed by the hot air structure. The lower ends of the two L-shaped piston tubes are connected to an air guide pipe. The upper surface of the air guide pipe is provided with a square groove. The upper surface of the square groove is provided with a number of exhaust holes connected to the air guide pipe at equal intervals.

[0007] The upper end of the tank shell is equipped with a water pumping structure capable of drawing water from inside the tank shell. A water conveying plate is fixedly connected to one side of the output end of the water pumping structure. Several one-way valves corresponding to the vent holes are installed at equal intervals on one side of the water conveying plate. Each one-way valve is located above the vent hole at its corresponding position. Two baffles are symmetrically installed on both sides of each one-way valve. A sliding frame is fitted on the upper and lower ends of the baffles. The sliding frame is slidably connected to the square groove. A through hole that can communicate with the vent hole is opened through the lower end of the sliding frame.

[0008] A slide cylinder is fixedly installed at the end of the baffle away from the one-way valve, and a sliding spray structure is fixedly installed at one end of the slide cylinder.

[0009] Each L-shaped piston tube has a piston structure with a push rod that moves with the piston. Each push rod has a connecting frame installed at the end away from the piston structure. Several limiting frames are fixedly installed on the side of the connecting frame near the slide cylinder, and the limiting frames can abut against the sliding spray structure at the corresponding position.

[0010] Preferably, the hot air structure includes an electric heating plate, which is fixedly installed on the bottom of the inner cavity of the preheating chamber. A water pipe is fixedly installed at the lower end of the shell, and the water pipe is connected to the preheating chamber. An air pump is fixedly installed at the upper end of the shell, and an air pipe is fixedly installed at the output end of the air pump. The end of the air pipe away from the air pump is fixedly connected to the shell, and the air pipe extends into the cavity of the preheating chamber.

[0011] Preferably, the piston structure includes a piston that is slidably connected to the inner wall of an L-shaped piston tube. A connecting rod is fixedly installed at one end of the piston. The connecting rod is slidably connected to one end of the L-shaped piston tube. A spring is sleeved on the outer wall of the connecting rod and abuts against the piston. A connecting rod is fixedly installed at the end of the connecting rod away from the piston, and the connecting rod abuts against the outer surface of the L-shaped piston tube.

[0012] Preferably, a pressure relief hole is provided through the upper surface of the L-shaped piston tube, and a sliding groove is provided on the outer surface of the upper end of the L-shaped piston tube. A sliding rod is slidably connected to the inner side wall of the sliding groove. A push block three is fixedly installed at one end of the sliding rod. The push block three is slidably connected to the pressure relief hole, and one side of the push block three can abut against the piston. A push block two is fixedly installed at the end of the pressure relief hole away from the push block three. A push block one is fixedly installed on the outer side wall of the push rod, and the push block one can abut against the push block two.

[0013] Preferably, the pumping structure includes a water pump, which is fixedly installed at the upper end of the tank shell. The lower end of the water pump is connected to a pumping pipe, which extends through the upper surface of the tank shell into the cavity of the water storage tank.

[0014] Preferably, a support block is fitted on the outer wall of the water pump, and a guide groove communicating with the output end of the water pump is opened inside the support block. The guide groove is connected to the water conveying plate. A second water pipe is fixedly installed at the lower end of the housing and is connected to the water storage tank.

[0015] Preferably, the sliding spray structure includes a sliding groove, which is formed on the outer side wall of the end of the slide cylinder away from the baffle. A nozzle is slidably connected to the inner side wall of the sliding groove, and the nozzle can abut against the corresponding limiting frame. A spring is fixedly installed between the nozzle and the bottom of the inner cavity of the sliding groove. Several vent holes are formed on the outer side wall of the nozzle.

[0016] Preferably, a cylinder is fixedly installed at the upper end of the water conveying plate, a connecting plate is fixedly installed at the output end of the cylinder, and the connecting plate is fixedly connected to the sliding frame. A bottom plate is provided at the lower end of the tank shell, and a plurality of electric push rods are provided at the upper end of the bottom plate, and the output ends of the electric push rods are fixedly connected to the tank shell.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The water inside the preheating chamber is heated by an electric heating plate. Then, the heat inside the preheating chamber is transferred to the L-shaped piston tube by an air pump. As a result, the air pressure inside the L-shaped piston tube increases, which pushes the piston, allowing hot air to flow into the air guide tube. Then, the hot air inside the air guide tube is discharged into the baffle through the exhaust port and through hole, thereby heating the nozzle and allowing the ice layer on the nozzle surface to melt quickly.

[0019] 2. Pressurize the inside of the baffle through the hot air structure, thereby pushing the nozzle to slide towards the limiting frame. At the same time, when the gas inside the L-shaped piston tube is discharged into the air guide tube, the connecting rod is subjected to the elastic restoring force of the spring, which will push the push rod to slide towards the L-shaped piston tube. The push rod then drives the limiting frame to slide, causing the limiting frame to collide with the nozzle, and further de-icing the surface of the nozzle.

[0020] 3. The water pressure inside the baffle allows the nozzle to decompose the water flow into water mist, thereby reducing dust in certain areas. At the same time, the hot air inside the L-shaped piston tube cannot be discharged through the air guide pipe. The hot air will further push the piston inside the L-shaped piston tube, allowing push block one to contact push block two. Simultaneously, the limiting frame slides away from the slide cylinder, allowing the nozzle to slide away from the slide cylinder under water pressure and abut against the limiting frame. Then, when push block one pushes push block two and slides against the sliding rod, the slot of the pressure relief hole will be opened, allowing the L-shaped piston tube to release air. Then, spring one will push the piston to reset. During the piston reset process, the limiting frame will push the nozzle, increasing the water pressure inside the baffle, thereby making the water mist sprayed by the nozzle more concentrated and increasing the spray range of the dust-reducing water mist. Attached Figure Description

[0021] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle;

[0024] Figure 3 This is a cross-sectional view of the air duct of the present invention.

[0025] Figure 4 This is a schematic diagram of the overall structure of the present invention with the shell removed;

[0026] Figure 5 This is a cross-sectional view of the L-shaped piston tube of the present invention.

[0027] Figure 6 This is a cross-sectional structural diagram of the nozzle of the present invention;

[0028] Figure 7 For the present invention Figure 5 Enlarged view of a portion of point A in the middle;

[0029] Figure 8 For the present invention Figure 6 A magnified view of a section at point B in the middle.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Shell; 2. Water storage tank; 3. Preheating tank; 4. L-shaped piston tube; 5. Air guide pipe; 6. Water delivery plate; 7. One-way valve; 8. Baffle; 9. Sliding frame; 10. Sliding cylinder; 11. Push rod; 101. Sliding groove; 12. Connecting frame; 13. Limiting frame; 14. Push block one; 15. Sliding rod; 16. Sliding groove; 17. Push block two; 18. Pressure relief hole; 19. Push block three; 20. Piston; 21. Spring one 22. Connecting rod; 23. Baffle plate; 24. Square groove; 25. Exhaust hole; 26. Through hole; 27. Cylinder 1; 28. Connecting plate; 29. ​​Spring 2; 30. Vent hole; 31. Nozzle; 32. Heating plate; 33. Water pipe 1; 34. Water pipe 2; 35. Air pump; 36. Air pipe; 37. Base plate; 38. Electric actuator; 39. Support block; 40. Water pump; 41. Water suction pipe; 42. Guide channel. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1-8 The present invention provides a technical solution: an adjustable dust suppression device for building construction, including a housing 1, a water storage tank 2 fixedly installed at the bottom of the inner cavity of the housing 1, a preheating tank 3 arranged between the housing 1 and the water storage tank 2, and a hot air structure installed inside the preheating tank 3.

[0034] Two L-shaped piston tubes 4 connected to the preheating chamber 3 are symmetrically installed on the upper end of the housing 1. The L-shaped piston tubes 4 have piston structures that can be pushed by the hot air structure inside. The lower ends of the two L-shaped piston tubes 4 are connected to the air guide pipe 5. The upper surface of the air guide pipe 5 is provided with a square groove 24. The upper surface of the square groove 24 is provided with a number of exhaust holes 25 connected to the air guide pipe 5 at equal intervals.

[0035] The upper end of the housing 1 is equipped with a water pumping structure that can draw water from the inside of the housing 1. A water supply plate 6 is fixedly connected to one side of the output end of the water pumping structure. Several one-way valves 7 corresponding to the vent 25 are installed at equal intervals on one side of the water supply plate 6. Each one-way valve 7 is located above the vent 25. Two baffles 8 are symmetrically installed on both sides of each one-way valve 7. A sliding frame 9 is fitted on both the upper and lower ends of the baffles 8. The sliding frame 9 is slidably connected to the square groove 24. A through hole 26 that can communicate with the vent 25 is opened through the lower end of the sliding frame 9.

[0036] A slide cylinder 10 is fixedly installed at the end of the baffle 8 away from the one-way valve 7, and a sliding spray structure is fixedly installed at one end of the slide cylinder 10.

[0037] Each L-shaped piston tube 4 has a piston structure with a push rod 11 that moves with the piston. Each push rod 11 has a connecting frame 12 installed at the end away from the piston structure. Several limiting frames 13 are fixedly installed on the side of the connecting frame 12 near the slide cylinder 10, and the limiting frames 13 can abut against the sliding spray structure at the corresponding position.

[0038] Specifically, every two baffles 8 block both sides of a one-way valve 7, and the upper slot of each exhaust port 25 is directly below the corresponding one-way valve 7. The hot air ejected from the hot air structure can flow into the air guide pipe 5 through the L-shaped piston pipe 4, and then be blown into the space between the two baffles 8 through the exhaust port 25. At the same time, the sliding frame 9 blocks the upper end of the baffle 8, and the sliding spray structure blocks the side of the baffle 8. As the hot air structure continuously ejects hot air, the internal pressure of the space formed by the two baffles 8 will continuously increase.

[0039] The hot air structure includes an electric heating plate 32, which is fixedly installed on the bottom of the inner cavity of the preheating chamber 3. A water pipe 33 is fixedly installed at the lower end of the housing 1 and is connected to the preheating chamber 3. An air pump 35 is fixedly installed at the upper end of the housing 1. An air pipe 36 is fixedly installed at the output end of the air pump 35. The end of the air pipe 36 away from the air pump 35 is fixedly connected to the housing 1 and extends into the cavity of the preheating chamber 3. The water pipe 33 can deliver water from the outside to the inside of the preheating chamber 3.

[0040] Specifically, the output end of the air pipe 36 can be inserted into the water inside the preheating chamber 3. Then, the water inside the preheating chamber 3 is heated by the electric heating plate 32. Then, the air pump 35 delivers air into the preheating chamber 3 through the air pipe 36, thereby converting the heat inside the preheating chamber 3 into hot air and transmitting it to the inside of the L-shaped piston tube 4.

[0041] The piston structure includes a piston 20, which is slidably connected to the inner wall of an L-shaped piston tube 4. A connecting rod 22 is fixedly installed at one end of the piston 20 and is slidably connected to one end of the L-shaped piston tube 4. A spring 21 that abuts against the piston 20 is sleeved on the outer wall of the connecting rod 22. The connecting rod 22 is fixedly installed at the end of the connecting rod 22 away from the piston 20 and abuts against the outer surface of the L-shaped piston tube 4. A baffle 23 is fixedly installed at the end of the connecting rod 22 away from the L-shaped piston tube 4 and abuts against the outer end of the L-shaped piston tube 4. The baffle 23 is also fixedly connected to the push rod 11.

[0042] The upper surface of the L-shaped piston tube 4 is provided with a pressure relief hole 18. The outer surface of the upper end of the L-shaped piston tube 4 is provided with a sliding groove 16. A sliding rod 15 is slidably connected to the inner side wall of the sliding groove 16. A push block 3 19 is fixedly installed at one end of the sliding rod 15. The push block 3 19 is slidably connected to the pressure relief hole 18, and one side of the push block 3 19 can abut against the piston 20. A push block 2 17 is fixedly installed at the end of the pressure relief hole 18 away from the push block 3 19. A push block 14 is fixedly installed on the outer side wall of the push rod 11, and the push block 14 can abut against the push block 2 17.

[0043] The pumping structure includes a water pump 40, which is fixedly installed on the upper end of the housing 1. The lower end of the water pump 40 is connected to a pumping pipe 41, which extends through the upper surface of the housing 1 into the cavity of the water storage tank 2.

[0044] Among them, the outer wall of the water pump 40 is fitted with a support block 39, and the support block 39 has a guide channel 42 that communicates with the output end of the water pump 40. The guide channel 42 is connected to the water conveying plate 6. The lower end of the housing 1 is fixedly installed with a water pipe 34, and the water pipe 34 is connected to the water storage tank 2. The water pipe 34 can transport water from the outside to the inside of the water storage tank 2.

[0045] The sliding spray structure includes a sliding groove 101, which is located on the outer side wall of the slide cylinder 10 away from the baffle 8. A nozzle 31 is slidably connected to the inner side wall of the sliding groove 101, and the nozzle 31 can abut against the corresponding limiting frame 13. A spring 29 is fixedly installed between the nozzle 31 and the bottom of the inner cavity of the sliding groove 101. Several vent holes 30 are provided on the outer side wall of the nozzle 31.

[0046] The upper end of the water conveying plate 6 is fixedly equipped with a cylinder 27, and the output end of the cylinder 27 is fixedly equipped with a connecting plate 28. The connecting plate 28 is fixedly connected to the sliding frame 9. The lower end of the housing 1 is provided with a base plate 37, and the upper end of the base plate 37 is provided with several electric push rods 38. The output end of the electric push rods 38 is fixedly connected to the housing 1. The electric push rods 38 can push the housing 1 to rise. The housing 1 drives the sliding spray structure to rise, thereby realizing the dust suppression function at different heights.

[0047] Specifically, when the internal pressure inside the preheating chamber 3 increases due to air supplied by the air pump 35, the excess hot air is transferred to the interior of the L-shaped piston tube 4, as shown in the reference. Figure 7 The hot air will push piston 20 to the right, and connecting rod 22 and push rod 11 will move together with piston 20. Spring 21 will start to compress. When piston 20 moves to the connection between L-shaped piston tube 4 and air guide tube 5, the hot air inside L-shaped piston tube 4 will be discharged through air guide tube 5. At the same time, spring 21 will drive piston 20 to return to its original position. This reciprocating motion will push push rod 11 to the right when there is no exhaust inside L-shaped piston tube 4. When L-shaped piston tube 4 exhausts, push rod 11 will return to its original position partially. At the same time, the limiting frame 13 connected to push rod 11 will also move towards nozzle 31. The hot air is discharged into the air guide tube. After passing through the inside of the tube 5, the hot air will be discharged into the inside of the baffle 8 through the exhaust port 25 and the through hole 26, so that the nozzle 31 can be heated. If the surface of the nozzle 31 is still blocked by ice, the pressure inside the baffle 8 will continue to increase due to the continuous influx of hot air that cannot be discharged through the nozzle 31. Then, it will push the nozzle 31 to slide away from the slide cylinder 10. At this time, the limiting frame 13 will move towards the slide cylinder 10 due to the discharge of the hot air inside the L-shaped piston tube 4, so that the nozzle 31 and the limiting frame 13 will collide, causing the nozzle 31 to vibrate and break the ice layer on the surface.

[0048] Furthermore, after the surface of the nozzle 31 has been de-iced, allowing the nozzle 31 to spray dust-suppressing water mist normally, the cylinder 27 pushes the sliding frame 9 to slide inside the square groove 24 via the connecting plate 28, so that the slot of the through hole 26 no longer matches the slot of the exhaust hole 25. Then, the water pump 40 will draw water from the water storage tank 2 through the water suction pipe 41, and then discharge it into the water conveying plate 6 through the guide groove 42. Then, the water inside the water conveying plate 6 will be discharged into the baffle 8 through the one-way valve 7, so that the baffle 8 and the sliding frame 9... The increased water pressure within the formed space causes water to flow and form a mist through the nozzle 31. When the through-hole 26 and the exhaust port 25 no longer match, the hot air inside the air duct 5 cannot escape. At this point, under the pressure of the water pressure inside the baffle 8, the nozzle 31 is pushed away from the slide cylinder 10 and comes into contact with the limiting frame 13. The second spring 29 is pulled and stores elastic potential energy. Simultaneously, the thrust generated by the water pressure pushing the nozzle 31 cannot push the connecting rod 22 and compress the first spring 21. At this point, reference... Figure 7 The hot air inside the L-shaped piston tube 4 will continue to push the piston 20 to slide to the right, and the push rod 11 will also slide along with it. At the same time as the push rod 11 slides, the limiting frame 13 will also move away from the slide cylinder 10. During the sliding of the push rod 11, the push block 14 will come into contact with the push block 27 and push the push block 27 to move to the right. During the movement of the push block 27, it will drive the sliding rod 15 to move. The sliding rod 15 will then drive the push block 39 to move, causing the push block 39 to slide to the right in the groove of the pressure relief hole 18. The groove of the pressure relief hole 18 will be opened. The hot air inside the L-shaped piston tube 4 is released. At this time, the elastic restoring force of the spring 21 will drive the piston 20 to reset and push the push block 19, so that the slot of the pressure relief hole 18 is blocked again. At the same time, during the reset process of the piston 20, the limiting frame 13 will be pushed towards the slide cylinder 10. The pushing of the limiting frame 13 will push the nozzle 31 to move together. During the movement of the nozzle 31, the water pressure inside the baffle 8 will be further increased by the push of the nozzle 31, making the water mist sprayed by the nozzle 31 more concentrated, thereby increasing the spray range of the dust suppression water mist.

[0049] Working principle: When the nozzle 31 is frozen in winter and cannot spray water mist normally, the staff first delivers water to the preheating chamber 3 through water pipe 33. Then, the water in the preheating chamber 3 is heated by electric heating plate 32. Then, the heat inside the preheating chamber 3 is transferred to the L-shaped piston tube 4 by air pump 35. As a result, the air pressure inside the L-shaped piston tube 4 increases, which pushes piston 20, allowing hot air to flow into the air guide tube 5. Then, the hot air inside the air guide tube 5 is discharged into the baffle 8 through exhaust port 25 and through hole 26, thereby heating the nozzle 31 with hot air and allowing the ice layer on the surface of the nozzle 31 to melt quickly.

[0050] Then, when the ice layer on the surface of the nozzle 31 cannot melt, the air pressure inside the baffle 8 will continue to rise because the nozzle 31 cannot expel excess heat. This will push the nozzle 31 to slide towards the limiting frame 13. At the same time, when the gas inside the L-shaped piston tube 4 is discharged into the air guide tube 5, the connecting rod 22 is subjected to the elastic restoring force of the spring 21, which will push the push rod 11 to slide towards the L-shaped piston tube 4. The push rod 11 will then drive the limiting frame 13 to slide, causing the limiting frame 13 to collide with the nozzle 31, and further breaking the ice on the surface of the nozzle 31.

[0051] Finally, after the nozzle 31 has finished breaking the ice, water is injected into the baffle 8 by the water pump 40. The water pressure inside the baffle 8 allows the nozzle 31 to decompose the water flow into water mist, thereby reducing dust in some areas. At the same time, the hot air inside the L-shaped piston tube 4 cannot be discharged through the air guide tube 5. The hot air will further push the piston 20 inside the L-shaped piston tube 4, so that the push block 14 can contact the push block 2 17. At the same time, the limiting frame 13 slides away from the slide cylinder 10, allowing the nozzle 31 to pass through. The water pressure slides away from the slide cylinder 10 and abuts against the limit frame 13. Then, when push block 14 pushes push block 27 and slide rod 15 to slide, the slot of pressure relief hole 18 will be opened, causing L-shaped piston tube 4 to release air. Then spring 21 will push piston 20 to reset. During the reset process of piston 20, it will push nozzle 31 through limit frame 13, which will increase the water pressure inside baffle 8, thereby making the water mist sprayed by nozzle 31 more concentrated and increasing the spray range of dust suppression water mist.

[0052] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An adjustable dust suppression device for construction, characterized in that: Includes a housing (1), a water storage tank (2) is fixedly installed at the bottom of the inner cavity of the housing (1), a preheating chamber (3) is provided between the housing (1) and the water storage tank (2), and a hot air structure is installed inside the preheating chamber (3); Two L-shaped piston tubes (4) connected to the preheating chamber (3) are symmetrically installed on the upper end of the housing (1). The L-shaped piston tubes (4) are equipped with piston structures that can be pushed by hot air structures. The lower ends of the two L-shaped piston tubes (4) are connected to air guide pipes (5). The upper surface of the air guide pipes (5) is provided with square grooves (24). The upper surface of the square grooves (24) is provided with a number of exhaust holes (25) connected to the air guide pipes (5) at equal intervals. The upper end of the housing (1) is equipped with a water pumping structure that can extract water from the inside of the housing (1). A water conveying plate (6) is fixedly connected to one side of the output end of the water pumping structure. Several one-way valves (7) corresponding to the exhaust holes (25) are installed at equal intervals on one side of the water conveying plate (6). Each one-way valve (7) is located at the upper end of the exhaust hole (25) corresponding to its position. Two baffles (8) are symmetrically installed on both sides of each one-way valve (7). A sliding frame (9) is fitted on both the upper and lower ends of the baffles (8). The sliding frame (9) is slidably connected to the square groove (24). A through hole (26) that can communicate with the exhaust hole (25) is opened through the lower end of the sliding frame (9). A slide cylinder (10) is fixedly installed at one end of the baffle (8) away from the one-way valve (7), and a sliding spray structure is fixedly installed at one end of the slide cylinder (10); Each L-shaped piston tube (4) has a piston structure on which a push rod (11) that can move with the piston is fixedly installed. Each push rod (11) has a connecting frame (12) installed at the end away from the piston structure. Several limiting frames (13) are fixedly installed on the side of the connecting frame (12) near the slide cylinder (10), and the limiting frames (13) can abut against the sliding spray structure at the corresponding position.

2. The adjustable dust suppression device for building construction according to claim 1, characterized in that: The hot air structure includes an electric heating plate (32), which is fixedly installed on the bottom of the inner cavity of the preheating chamber (3). A water pipe (33) is fixedly installed at the lower end of the shell (1), and the water pipe (33) is connected to the preheating chamber (3). An air pump (35) is fixedly installed at the upper end of the shell (1), and an air pipe (36) is fixedly installed at the output end of the air pump (35). The end of the air pipe (36) away from the air pump (35) is fixedly connected to the shell (1), and the air pipe (36) extends into the cavity of the preheating chamber (3).

3. The adjustable dust suppression device for building construction according to claim 1, characterized in that: The piston structure includes a piston (20), which is slidably connected to the inner wall of an L-shaped piston tube (4). A connecting rod (22) is fixedly installed at one end of the piston (20). The connecting rod (22) is slidably connected to one end of the L-shaped piston tube (4). A spring (21) that abuts against the piston (20) is sleeved on the outer wall of the connecting rod (22). The connecting rod (22) is fixedly installed at the end of the connecting rod (22) away from the piston (20), and the connecting rod (22) abuts against the outer surface of the L-shaped piston tube (4).

4. The adjustable dust suppression device for building construction according to claim 3, characterized in that: The upper surface of the L-shaped piston tube (4) is provided with a pressure relief hole (18). The outer surface of the upper end of the L-shaped piston tube (4) is provided with a sliding groove (16). A sliding rod (15) is slidably connected to the inner side wall of the sliding groove (16). A push block three (19) is fixedly installed at one end of the sliding rod (15). The push block three (19) is slidably connected to the pressure relief hole (18), and one side of the push block three (19) can abut against the piston (20). A push block two (17) is fixedly installed at the end of the pressure relief hole (18) away from the push block three (19). A push block one (14) is fixedly installed on the outer side wall of the push rod (11), and the push block one (14) can abut against the push block two (17).

5. The adjustable dust suppression device for building construction according to claim 1, characterized in that: The pumping structure includes a water pump (40), which is fixedly installed on the upper end of the housing (1). The lower end of the water pump (40) is connected to a pumping pipe (41), and the pumping pipe (41) extends through the upper surface of the housing (1) into the cavity of the water storage tank (2).

6. The adjustable dust suppression device for building construction according to claim 5, characterized in that: The outer wall of the water pump (40) is fitted with a support block (39). The support block (39) has a guide groove (42) that communicates with the output end of the water pump (40). The guide groove (42) is connected to the water conveying plate (6). The lower end of the housing (1) is fixedly installed with a water pipe (34), and the water pipe (34) is connected to the water storage tank (2).

7. The adjustable dust suppression device for building construction according to claim 1, characterized in that: The sliding spray structure includes a sliding groove (101), which is opened on the outer side wall of the sliding cylinder (10) away from the baffle (8). A nozzle (31) is slidably connected to the inner side wall of the sliding groove (101), and the nozzle (31) can abut against the corresponding limiting frame (13). A spring (29) is fixedly installed between the nozzle (31) and the bottom of the inner cavity of the sliding groove (101). Several vent holes (30) are opened on the outer side wall of the nozzle (31).

8. The adjustable dust suppression device for building construction according to claim 1, characterized in that: A cylinder (27) is fixedly installed at the upper end of the water conveying plate (6). A connecting plate (28) is fixedly installed at the output end of the cylinder (27), and the connecting plate (28) is fixedly connected to the sliding frame (9). A bottom plate (37) is provided at the lower end of the housing (1). Several electric push rods (38) are provided at the upper end of the bottom plate (37), and the output end of the electric push rods (38) is fixedly connected to the housing (1).

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