Adjustable dust falling device for building construction

Abstract

The invention relates to the technical field of construction dust falling, in particular to an adjustable dust falling device for building construction, which comprises a box shell, a water storage bin is fixedly mounted at the bottom of an inner cavity of the box shell, a preheating bin is arranged between the box shell and the water storage bin, and a hot air structure is mounted in the preheating bin. Two L-shaped piston pipes communicating with the preheating bin are symmetrically installed at the upper end of the box shell, piston structures capable of being pushed by a hot air structure are installed in the L-shaped piston pipes, an air guide pipe is jointly installed at the lower ends of one sides of the output ends of the two L-shaped piston pipes, and a square groove is formed in the upper surface of the air guide pipe; the piston structure is pushed through the hot air structure, so that the hot air can melt the frozen spray head, meanwhile, when the spray head cannot melt smoothly, ice breaking is conducted on the spray head through sliding mist spraying, meanwhile, the sliding mist spraying structure can also pressurize the space in the baffle during mist spraying, and therefore the dense degree of mist sprayed out of the spray head is improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction dust suppression, in particular to an adjustable dust suppression device for building construction. Background Art

[0002] Dust not only affects air quality, but also threatens the health of surrounding residents. In order to effectively deal with the problem of dust pollution, construction water mist dust reduction technology came into being. This technology sprays water mist to make dust particles in the air combine with water mist particles and settle, thereby achieving the effect of dust reduction.

[0003] However, in winter, due to the cold weather, the nozzles may freeze when using water mist to suppress dust, which causes the nozzles to fail to work properly, or the spray volume is reduced, thus affecting the dust suppression effect. At the same time, during the spraying process, the density of the spray cannot be changed regularly. Summary of the invention

[0004] The purpose of the invention is to provide a subject matter to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an adjustable dust suppression device for construction, comprising a box shell, a water storage bin is fixedly installed at the bottom of the inner cavity of the box shell, a preheating bin is arranged between the box shell and the water storage bin, and a hot air structure is installed inside the preheating bin;

[0006] Two L-shaped piston tubes connected to the preheating chamber are symmetrically installed at the upper end of the box shell, and a piston structure that can be pushed by the hot air structure is installed inside the L-shaped piston tube. An air guide tube is commonly installed at the lower end of one side of the output end of the two L-shaped piston tubes, and a square groove is opened on the upper surface of the air guide tube. A plurality of exhaust holes connected to the air guide tube are opened at equal intervals on the upper surface of the square groove;

[0007] A pumping structure capable of extracting water from the inside of the box shell is installed at the upper end of the box shell, and a water delivery plate is fixedly connected to one side of the output end of the pumping structure. A number of one-way valves corresponding to the exhaust holes are installed at equal intervals on one side of the water delivery plate, and each one-way valve is located at the upper end of the exhaust hole corresponding to the position, and two baffles are symmetrically installed on both sides of each one-way valve, and the upper and lower ends of the baffles are jointly sleeved with a sliding frame, and the sliding frame is slidably connected to the square groove, and a through hole capable of communicating with the exhaust hole is opened through the lower end of the sliding frame;

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

[0009] A push rod that can move with the piston is fixedly installed on the piston structure on each L-shaped piston tube, and a connecting frame is commonly installed on the end of each push rod away from the piston structure. A plurality of limit frames are fixedly installed on the side of the connecting frame close to the slide cylinder, and the limit frames can interfere with the sliding spray structure at the corresponding position.

[0010] Preferably, the hot air structure includes an electric heating plate, which is fixedly mounted on the bottom of the inner cavity of the preheating bin, a water pipe is fixedly mounted on the lower end of the box shell, and the water pipe is connected to the preheating bin, an air pump is fixedly mounted on the upper end of the box shell, an air pipe is fixedly mounted on the output end of the air pump, an end of the air pipe away from the air pump is fixedly connected to the box shell, and the air pipe extends into the cavity of the preheating bin.

[0011] Preferably, the piston structure includes a piston, which 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, an outer wall of the connecting rod is sleeved with a spring that contacts the piston, a connecting rod is fixedly installed at one end of the connecting rod away from the piston, and the connecting rod contacts the outer surface of the L-shaped piston tube.

[0012] Preferably, a pressure relief hole is penetrated through the upper surface of the L-shaped piston tube, 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 wall of the sliding groove, a push block three is fixedly installed on 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 contact the piston, a push block two is fixedly installed on the end of the pressure relief hole away from the push block three, and a push block one is fixedly installed on the outer wall of the push rod, and the push block one can contact the push block two.

[0013] Preferably, the pumping structure includes a water pump, which is fixedly mounted on the upper end of the box shell, and the input end of the lower end of the water pump is connected to a pumping pipe, and the pumping pipe passes through the upper surface of the box shell and extends into the cavity of the water storage tank.

[0014] Preferably, the outer wall of the water pump is provided with a support block, a guide groove connected to the output end of the water pump is opened inside the support block, and the guide groove is connected to the water delivery plate, and a second water pipe is fixedly installed at the lower end of the box shell, and the second water pipe is connected to the water storage tank.

[0015] Preferably, the sliding spray structure includes a sliding groove, which is opened on the outer wall of the sliding cylinder at one end away from the baffle, and a nozzle is slidably connected to the inner wall of the sliding groove, and the nozzle can interfere with the limit frame at the corresponding position, and a spring 2 is fixedly installed between the nozzle and the inner cavity bottom of the sliding groove, and a plurality of air leakage holes are opened on the outer wall of the nozzle.

[0016] Preferably, a cylinder 1 is fixedly installed on the upper end of the water delivery plate, a connecting plate is fixedly installed on the output end of the cylinder 1, and the connecting plate is fixedly connected to the slide frame, a bottom plate is provided at the lower end of the box shell, 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 box shell.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The water inside the preheating chamber is heated by the electric heating plate, and then the heat inside the preheating chamber is transferred to the inside of the L-shaped piston tube through the air pump. Then, the air pressure inside the L-shaped piston tube increases, which pushes the piston, causing the hot air to flow into the inside of the air guide tube. Then, the hot air inside the air guide tube is discharged into the inside of the baffle through the exhaust hole and the through hole, so that the hot air heats the nozzle, and the ice layer on the surface of the nozzle can be quickly melted;

[0019] 2. The hot air structure is used to pressurize the inside of the baffle, thereby pushing the nozzle to slide in the direction of the limit frame. At the same time, when the gas inside the L-shaped piston tube is discharged into the inside of the air guide tube, the connecting rod is subjected to the elastic restoring force of the spring 1, which pushes the push rod to slide in the direction of the L-shaped piston tube. The push rod then drives the limit frame to slide, so that the limit frame collides with the nozzle, and further breaks the ice on the surface of the nozzle;

[0020] 3. The water pressure inside the baffle enables the nozzle to decompose the water flow into water mist to reduce dust in some areas. At the same time, the hot air inside the L-shaped piston tube cannot be discharged through the air guide tube. The hot air will further push the piston inside the L-shaped piston tube, so that the push block 1 can contact the push block 2. At the same time, the limit frame slides in the direction away from the slide cylinder, so that the nozzle can slide in the direction away from the slide cylinder through the water pressure and conflict with the limit frame. Then, when the push block 1 pushes the push block 2 and the sliding rod to slide, the notch of the pressure relief hole will be opened, causing the L-shaped piston tube to deflate, and then the spring 1 will push the piston to reset. During the process of resetting the piston, the nozzle will be pushed through the limit frame, so that the water pressure inside the baffle increases, thereby making the water mist sprayed by the nozzle denser and increasing the spray range of the dust-reducing water mist. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0024] Figure 3 is a schematic cross-sectional structural diagram of the airway of the present invention;

[0025] Figure 4 This is a schematic diagram of the overall structure of the present invention without the box shell;

[0026] Figure 5 It is a schematic cross-sectional view of the L-shaped piston tube of the present invention;

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

[0028] Figure 7 For the present invention Figure 5 A partial enlarged view of the middle part;

[0029] Figure 8 For the present invention Figure 6 A partial enlarged view of point B in the middle.

[0030] Description of reference numerals:

[0031] 1. Box shell; 2. Water storage tank; 3. Preheating tank; 4. L-shaped piston tube; 5. Air guide tube; 6. Water delivery plate; 7. One-way valve; 8. Baffle; 9. Slide frame; 10. Slide cylinder; 11. Push rod; 101. Slide groove; 12. Connecting frame; 13. Limiting frame; 14. Push block 1; 15. Slide rod; 16. Slide groove; 17. Push block 2; 18. Pressure relief hole; 19. Push block 3; 20. Piston; 21. Spring 1 ; 22. Connecting rod; 23. Baffle; 24. Square groove; 25. Exhaust hole; 26. Through hole; 27. Cylinder 1; 28. Connecting plate; 29. ​​Spring 2; 30. Vent hole; 31. Nozzle; 32. Electric heating plate; 33. Water pipe 1; 34. Water pipe 2; 35. Air pump; 36. Air pipe; 37. Bottom plate; 38. Electric push rod; 39. Support block; 40. Water pump; 41. Pumping pipe; 42. Diversion groove. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 8 The present invention provides a technical solution: an adjustable dust suppression device for construction, comprising a box shell 1, a water storage bin 2 is fixedly installed at the bottom of the inner cavity of the box shell 1, a preheating bin 3 is arranged between the box shell 1 and the water storage bin 2, and a hot air structure is installed inside the preheating bin 3;

[0034] Two L-shaped piston tubes 4 connected to the preheating chamber 3 are symmetrically installed at the upper end of the box shell 1. A piston structure that can be pushed by the hot air structure is installed inside the L-shaped piston tube 4. An air guide tube 5 is commonly installed at the lower end of the output end of the two L-shaped piston tubes 4. A square groove 24 is opened on the upper surface of the air guide tube 5. A plurality of exhaust holes 25 connected to the air guide tube 5 are opened at equal intervals on the upper surface of the square groove 24.

[0035] A pumping structure capable of extracting water from the inside of the box shell 1 is installed at the upper end of the box shell 1, and a water delivery plate 6 is fixedly connected to one side of the output end of the pumping structure. A plurality of one-way valves 7 corresponding to the exhaust holes 25 are installed at equal intervals on one side of the water delivery plate 6, and each one-way valve 7 is located at the upper end of the exhaust hole 25 corresponding to the position. Two baffles 8 are symmetrically installed on both sides of each one-way valve 7. The upper and lower ends of the baffles 8 are jointly sleeved with a sliding frame 9, and the sliding frame 9 is slidably connected to the square groove 24. A through hole 26 capable of communicating with the exhaust hole 25 is opened through the lower end of the sliding frame 9;

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

[0037] A push rod 11 that can move with the piston is fixedly installed on the piston structure on each L-shaped piston tube 4, and a connecting frame 12 is installed on the end of each push rod 11 away from the piston structure. A plurality of limit frames 13 are fixedly installed on the side of the connecting frame 12 close to the slide cylinder 10, and the limit frames 13 can interfere with the sliding spray structure at the corresponding position.

[0038] Specifically, every two baffles 8 will block the two sides of a one-way valve 7. At the same time, the upper notch of each exhaust hole 25 is located directly below the one-way valve 7 at the corresponding position, so that the hot air sprayed out by the hot air structure can flow into the interior of the air guide pipe 5 through the L-shaped piston tube 4, and then be blown into the space between the two baffles 8 at the corresponding position through the exhaust hole 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, so that as the hot air structure continues to spray hot air, the internal pressure of the space formed by the two baffles 8 will continue to increase.

[0039] Among them, the hot air structure includes an electric heating plate 32, which is fixedly installed on the bottom of the inner cavity of the preheating bin 3. A water pipe 33 is fixedly installed at the lower end of the box shell 1, and the water pipe 33 is connected to the preheating bin 3. An air pump 35 is fixedly installed at the upper end of the box 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 box shell 1, and the air pipe 36 extends into the cavity of the preheating bin 3, wherein the water pipe 33 can transport water from the outside to the inside of the preheating bin 3.

[0040] Specifically, the output end of the air pipe 36 can be inserted into the water in the cavity of the preheating chamber 3, and then the water inside the preheating chamber 3 is heated by the electric heating plate 32, and then the air pump 35 transports air to the interior of 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 interior of the L-shaped piston tube 4.

[0041] Among them, the piston structure includes a piston 20, which is slidingly connected to the inner wall of the L-shaped piston tube 4. A connecting rod 22 is fixedly installed at one end of the piston 20, and the connecting rod 22 is slidingly connected to one end of the L-shaped piston tube 4. The outer wall of the connecting rod 22 is sleeved with a spring 21 that contacts the piston 20. The connecting rod 22 is fixedly installed at one end of the connecting rod 22 away from the piston 20, and the connecting rod 22 contacts the outer surface of the L-shaped piston tube 4, wherein a baffle 23 is fixedly installed at one end of the connecting rod 22 away from the L-shaped piston tube 4, and the baffle 23 contacts the outer end of the L-shaped piston tube 4, and the baffle 23 is fixedly connected to the push rod 11.

[0042] Among them, a pressure relief hole 18 is penetrated through the upper surface of the L-shaped piston tube 4, and a slide groove 16 is opened on the outer surface of the upper end of the L-shaped piston tube 4. A sliding rod 15 is slidably connected to the inner wall of the slide groove 16, and 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 contact the piston 20. A push block two 17 is fixedly installed on the end of the pressure relief hole 18 away from the push block three 19, and a push block one 14 is fixedly installed on the outer wall of the push rod 11, and the push block one 14 can contact the push block two 17.

[0043] Among them, the pumping structure includes a water pump 40, which is fixedly installed on the upper end of the box shell 1. The input end of the lower end of the water pump 40 is connected to a pumping pipe 41, and the pumping pipe 41 passes through the upper surface of the box shell 1 and extends to the cavity of the water storage tank 2.

[0044] Among them, the outer wall of the water pump 40 is provided with a support block 39, and a guide groove 42 connected to the output end of the water pump 40 is opened inside the support block 39, and the guide groove 42 is connected to the water delivery plate 6, and a water pipe 2 34 is fixedly installed at the lower end of the box shell 1, and the water pipe 2 34 is connected to the water storage tank 2, wherein the water pipe 2 34 can transport water from the outside to the inside of the water storage tank 2.

[0045] Among them, the sliding spray structure includes a sliding groove 101, which is opened on the outer wall of the slide 10 at one end away from the baffle 8. A nozzle 31 is slidably connected to the inner wall of the sliding groove 101, and the nozzle 31 can be in contact with the limit frame 13 at the corresponding position. A spring 29 is fixedly installed between the nozzle 31 and the bottom of the inner cavity of the sliding groove 101, and a plurality of air leakage holes 30 are opened on the outer wall of the nozzle 31.

[0046] Among them, a cylinder 27 is fixedly installed on the upper end of the water supply plate 6, a connecting plate 28 is fixedly installed on 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 box shell 1, and a plurality of electric push rods 38 are provided on the upper end of the bottom plate 37, and the output end of the electric push rod 38 is fixedly connected to the box shell 1, wherein the electric push rod 38 can push the box shell 1 to lift upward, and the box shell 1 drives the sliding spray structure to lift, thereby realizing the dust reduction function at different heights.

[0047] Specifically, when the internal pressure of the preheating chamber 3 increases due to the air delivered by the air pump 35, the excess hot air will be delivered to the inside of the L-shaped piston tube 4. Figure 7 , these hot gases will push the piston 20 to move to the right, and the connecting rod 22 and the push rod 11 will move with the piston 20, and the spring 1 21 will begin to compress. When the piston 20 moves to the connection between the L-shaped piston tube 4 and the air guide tube 5, the hot gas inside the L-shaped piston tube 4 will be discharged through the air guide tube 5, and the spring 1 21 will drive the piston 20 to reset, so that the reciprocating push rod 11 will be pushed to the right when the inside of the L-shaped piston tube 4 is not exhausted. When the L-shaped piston tube 4 is exhausted, the push rod 11 will be partially reset, and the limit frame 13 connected to the push rod 11 will also move toward the direction of the nozzle 31. After entering the interior of the L-shaped piston tube 5, the hot air will be discharged into the interior of the baffle 8 through the exhaust hole 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 hot air will continue to flow into the baffle 8 and cannot be discharged through the nozzle 31, the pressure inside the baffle 8 will continue to increase, and then the nozzle 31 will be pushed to slide away from the slide 10. At this time, the limit frame 13 will move toward the slide 10 due to the exhaust of the internal hot air of the L-shaped piston tube 4, so that the nozzle 31 will collide with the limit frame 13, causing the nozzle 31 to vibrate and break the ice layer on the surface.

[0048] Furthermore, when the surface of the nozzle 31 is completely de-iced, so that the nozzle 31 can normally spray dust-reducing water mist, the cylinder 1 27 pushes the slide frame 9 to slide inside the square groove 24 through the connecting plate 28, so that the notch of the through hole 26 no longer matches the notch of the exhaust hole 25, and then the water pump 40 draws water from the water storage tank 2 through the water pumping pipe 41, and then discharges it from the inside of the water delivery plate 6 through the guide groove 42, and then the water inside the water delivery plate 6 is discharged into the inside of the baffle 8 through the one-way valve 7, so that the baffle 8 and the slide frame 9 are connected. The water pressure inside the formed space increases, and then the water flow forms water mist through the nozzle 31 and the water pressure. After the through hole 26 and the exhaust hole 25 no longer match, the hot air inside the air guide pipe 5 will not be able to be discharged. At this time, under the pressure of the water pressure inside the baffle 8, the nozzle 31 will be pushed by the water pressure to slide away from the slide cylinder 10 and conflict with the limit frame 13. The spring 29 will be pulled and store elastic potential energy. At the same time, the thrust generated by the water pressure pushing the nozzle 31 cannot push the connecting rod 22 and compresses the spring 1 21. At this time, refer to 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 therewith. When the push rod 11 slides, the limit frame 13 will also move in the direction away from the slide cylinder 10. During the sliding process of the push rod 11, the push block 14 will conflict with the push block 2 17 and push the push block 2 17 to move to the right. During the movement of the push block 2 17, the sliding rod 15 will be driven to move. The sliding rod 15 drives the push block 3 19 to move, so that the push block 3 19 slides to the right in the groove of the pressure relief hole 18, and the notch of the pressure relief hole 18 will be opened. The hot air inside the L-shaped piston tube 4 is opened and released. At this time, the elastic restoring force of the spring 1 21 will drive the piston 20 to reset and push the push block 3 19, so that the notch of the pressure relief hole 18 is blocked again. At the same time, during the resetting process of the piston 20, the limit frame 13 will be driven to push in the direction of the slide cylinder 10. The push of the limit 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, so that the water mist sprayed by the nozzle 31 will be denser, thereby increasing the spraying range of the dust suppression water mist.

[0049] Working principle: in winter, when the nozzle 31 is frozen and cannot spray water mist normally, the staff first transports water resources to the inside of the preheating bin 3 through the water pipe 1 33, and then heats the water inside the preheating bin 3 through the electric heating plate 32, and then the heat inside the preheating bin 3 is transferred to the inside of the L-shaped piston tube 4 through the air pump 35. Then, the air pressure inside the L-shaped piston tube 4 increases, which pushes the piston 20, so that the hot air flows into the inside of the air guide tube 5, and then the hot air inside the air guide tube 5 is discharged into the inside of the baffle 8 through the exhaust hole 25 and the through hole 26, so that the nozzle 31 is heated by the hot air, so that the ice layer on the surface of the nozzle 31 can be quickly melted;

[0050] Then, when the ice layer on the surface of the nozzle 31 cannot melt, since the nozzle 31 cannot discharge excess hot air, the air pressure inside the baffle 8 will continue to increase, thereby pushing the nozzle 31 to slide in the direction of the limit frame 13. At the same time, when the gas inside the L-shaped piston tube 4 is discharged into the inside of the air guide tube 5, the connecting rod 22 is subjected to the elastic restoring force of the spring 1 21, and will push the push rod 11 to slide in the direction of the L-shaped piston tube 4. The push rod 11 then drives the limit frame 13 to slide, so that the limit frame 13 collides with the nozzle 31, and further ice breaking treatment is performed on the surface of the nozzle 31.

[0051] Finally, when the nozzle 31 has finished breaking the ice, water is injected into the baffle 8 through the water pump 40. The water pressure inside the baffle 8 enables the nozzle 31 to decompose the water flow into water mist to reduce 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 pipe 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 limit frame 13 slides in the direction away from the slide cylinder 10, so that the nozzle 31 can pass through the air guide pipe 5. The excessive water pressure slides in the direction away from the slide cylinder 10 and contacts the limit frame 13. Then, when the push block 14 pushes the push block 2 17 and the sliding rod 15 to slide, the notch of the pressure relief hole 18 will be opened, causing the L-shaped piston tube 4 to deflate. Then the spring 1 21 will push the piston 20 to reset. During the process of the piston 20 resetting, the nozzle 31 will be pushed through the limit frame 13, so that the water pressure inside the baffle 8 increases, thereby making the water mist sprayed by the nozzle 31 denser, thereby increasing the spray range of the dust-reducing water mist.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable dust suppression device for construction, characterized in that: It comprises a box shell (1), a water storage bin (2) is fixedly mounted on the bottom of the inner cavity of the box shell (1), a preheating bin (3) is arranged between the box shell (1) and the water storage bin (2), and a hot air structure is installed inside the preheating bin (3); Two L-shaped piston tubes (4) in communication with the preheating chamber (3) are symmetrically mounted on the upper end of the box shell (1); a piston structure that can be pushed by a hot air structure is mounted inside the L-shaped piston tubes (4); an air guide tube (5) is mounted on the lower ends of the two L-shaped piston tubes (4) on one side of the output ends; a square groove (24) is formed on the upper surface of the air guide tube (5); and a plurality of exhaust holes (25) in communication with the air guide tube (5) are formed on the upper surface of the square groove (24) at equal intervals; The upper end of the box shell (1) is provided with a pumping structure capable of extracting water from the box shell (1), one side of the output end of the pumping structure is fixedly connected with a water delivery plate (6), one side of the water delivery plate (6) is provided with a plurality of one-way valves (7) corresponding to the exhaust holes (25) at equal intervals, and each one-way valve (7) is located at the upper end of the exhaust hole (25) corresponding to the position, and two baffles (8) are symmetrically provided on both sides of each one-way valve (7), the upper and lower ends of the baffles (8) are jointly sleeved with a sliding frame (9), and the sliding frame (9) is slidably connected to the square groove (24), and a through hole (26) capable of communicating with the exhaust hole (25) is penetrated through the lower end of the sliding frame (9); A slide cylinder (10) is fixedly mounted on one end of the baffle (8) away from the one-way valve (7), and a sliding spray structure is fixedly mounted on one end of the slide cylinder (10); A push rod (11) capable of moving with the piston is fixedly mounted on the piston structure on each of the L-shaped piston tubes (4); a connecting frame (12) is commonly mounted on one end of each of the push rods (11) away from the piston structure; a plurality of limit frames (13) are fixedly mounted on one side of the connecting frame (12) close to the slide cylinder (10), and the limit frames (13) are capable of contacting with the sliding spray structure at a corresponding position.

2. The adjustable dust suppression device for construction according to claim 1, characterized in that: The hot air structure comprises an electric heating plate (32), the electric heating plate (32) being fixedly mounted on the bottom of the inner cavity of the preheating bin (3), a water pipe (33) being fixedly mounted on the lower end of the box shell (1), the water pipe (33) being communicated with the preheating bin (3), an air pump (35) being fixedly mounted on the upper end of the box shell (1), an air pipe (36) being fixedly mounted on the output end of the air pump (35), the end of the air pipe (36) away from the air pump (35) being fixedly connected to the box shell (1), and the air pipe (36) extending into the cavity of the preheating bin (3).

3. The adjustable dust suppression device for construction according to claim 1, characterized in that: The piston structure comprises a piston (20), wherein the piston (20) 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), an outer wall of the connecting rod (22) is sleeved with a spring (21) that contacts the piston (20), and a connecting rod (22) is fixedly installed at one end of the connecting rod (22) away from the piston (20), and the connecting rod (22) contacts the outer surface of the L-shaped piston tube (4).

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

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

6. The adjustable dust suppression device for construction according to claim 5, characterized in that: The outer wall of the water pump (40) is sleeved with a support block (39), the support block (39) is provided with a guide groove (42) in communication with the output end of the water pump (40), and the guide groove (42) is connected to the water delivery plate (6). The lower end of the box shell (1) is fixedly mounted with a second water pipe (34), and the second water pipe (34) is in communication with the water storage tank (2).

7. The adjustable dust suppression device for construction according to claim 1, characterized in that: The sliding spray structure comprises a sliding groove (101), wherein the sliding groove (101) is provided on the outer wall of the sliding cylinder (10) at one end away from the baffle (8), a nozzle (31) is slidably connected to the inner wall of the sliding groove (101), and the nozzle (31) can contact with a limit frame (13) at a corresponding position, a spring 2 (29) is fixedly installed between the nozzle (31) and the inner cavity bottom of the sliding groove (101), and a plurality of air leakage holes (30) are provided on the outer wall of the nozzle (31).

8. The adjustable dust suppression device for construction according to claim 1, characterized in that: A cylinder (27) is fixedly mounted on the upper end of the water delivery plate (6), a connecting plate (28) is fixedly mounted on the output end of the cylinder (27), and the connecting plate (28) is fixedly connected to the slide frame (9), a bottom plate (37) is arranged at the lower end of the box shell (1), a plurality of electric push rods (38) are arranged at the upper end of the bottom plate (37), and the output ends of the electric push rods (38) are fixedly connected to the box shell (1).

Images