Spraying and dust settling device for building construction

Abstract

The invention discloses a spraying and dust reducing device for building construction, and relates to the technical field of spraying and dust reducing for building construction.The spraying and dust reducing device for building construction comprises a base, a motor is fixedly installed on the inner wall of the upper portion of the base, a spraying barrel is fixedly installed at the output end of the motor, and an exhaust fan is arranged on the inner wall of the spraying barrel; an adjusting device used for adjusting the angle of the spraying barrel is arranged on the circumferential face of the spraying barrel and comprises a sleeving barrel, the sleeving barrel is rotationally installed on the circumferential face of the spraying barrel, a water outlet barrel is fixedly installed on the surface of the spraying barrel, a sliding barrel is slidably installed on the circumferential face of the spraying barrel, and an abutting plate is fixedly installed on the inner wall of the sleeving barrel. And a mounting plate is fixedly mounted on the circumferential surface of the water outlet cylinder, so that a more accurate atomization effect can be realized, the dust falling efficiency is optimized, water resources are saved, different environmental conditions are adapted, and the load of equipment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of spray dust reduction for construction, and specifically to a spray dust reduction device for construction. Background Art

[0002] A spray dust reduction device for construction is a device designed specifically for construction sites, aiming to reduce air pollution generated during construction, especially dust pollution. Since construction sites are often accompanied by a large amount of high-dust activities such as earthwork, concrete pouring, and demolition, the spray dust reduction device can effectively inhibit the diffusion of dust, ensuring a clean construction site environment and protecting the health of construction workers.

[0003] The patent with the patent announcement number CN214914500U relates to a spray dust reduction device for construction, including a water tank; a spraying assembly, which is arranged inside the water tank and is used for spraying at the construction site to reduce the dust content in the air; a spraying adjustment assembly, which is arranged inside the water tank and is connected to the spraying assembly, and is used to achieve the up-and-down lifting and rotation effects when the spraying assembly works; when this device sprays and reduces dust at the construction site, by adjusting the height of the spraying device and making it rotate, the spraying range and height of the spraying device can be adjusted, thereby greatly improving the dust reduction range and height of the device, and greatly improving the dust reduction effect.

[0004] In the above patent, it is used to achieve the up-and-down lifting and rotation effects when the spraying assembly works; when this device sprays and reduces dust at the construction site, by adjusting the height of the spraying device and making it rotate, however, during the process of spraying and removing dust from the construction site, when the range of dust dispersion exceeds a certain angle, the spraying range of the water mist may not be sufficient, which may lead to poor dust removal effect and affect the construction efficiency. Therefore, a spray dust reduction device for construction with an angle adjustment device is designed. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a spray dust reduction device for construction, which solves the problems put forward in the above background art.

[0006] To achieve the above object, the present invention is realized by the following technical solutions: A spray dust reduction device for building construction, including a base. An electric motor is fixedly installed on the upper inner wall of the base. The output end of the electric motor is fixedly installed with a spray barrel. An exhaust fan is arranged on the inner wall of the spray barrel. An adjusting device for adjusting the angle of the spray barrel is arranged on the circumferential surface of the spray barrel. The adjusting device includes a socket cylinder, and the socket cylinder is rotatably installed on the circumferential surface of the spray barrel. A water outlet cylinder is fixedly installed on the surface of the spray barrel. A sliding cylinder is slidably installed on the circumferential surface of the spray barrel. A resisting plate is fixedly installed on the inner wall of the socket cylinder. A mounting plate is fixedly installed on the circumferential surface of the water outlet cylinder. A T-shaped plate one is slidably installed on the inner wall of the mounting plate. A telescopic elastic rod one is fixedly installed on the inner wall of the mounting plate. A connecting shaft is fixedly installed at the bottom of the sliding cylinder. An L-shaped plate one is fixedly installed at the bottom of the water outlet cylinder. A cross plate is fixedly installed on the surface of the sliding cylinder. A connecting rod is rotatably installed on the side surface of the cross plate. A fixing plate is fixedly installed above the base. A supporting device for supporting the sliding cylinder is arranged on the surface of the sliding cylinder. A cleaning device for cleaning the exhaust fan is arranged on the surface of the exhaust fan. The resisting plate rotates and contacts the surface of the T-shaped plate one and squeezes the T-shaped plate one to slide away from the resisting plate, and adjusts the size of the water outlet of the sliding cylinder. Subsequently, when the spray dust removal ends, the T-shaped plate one will return to the initial state under the action of the telescopic elastic rod one, achieving a recyclable effect, which can achieve a more precise atomization effect, optimize the dust reduction efficiency, save water resources, adapt to different environmental conditions, and reduce the load of the equipment.

[0007] According to the above technical solution, the shape of the resisting plate is set to be arc-shaped. The free end of the telescopic elastic rod one is fixedly connected to the surface of the T-shaped plate one. The resisting plate rotates and contacts the surface of the T-shaped plate one and squeezes the T-shaped plate one to slide away from the resisting plate.

[0008] According to the above technical solution, the end of the connecting rod away from the cross plate is fixedly connected to the side surface of the fixing plate. There are several resisting plates, and several of the resisting plates are symmetrically distributed with the socket cylinder as the center. When the spray barrel starts to tilt upward and move, it will drive the water outlet cylinder on its surface to move away from the socket cylinder under the action of the connecting rod.

[0009] According to the above technical solution, an inclined groove is opened on the surface of the L-shaped plate one. The connecting shaft is slidably connected to the inner wall of the inclined groove, and the connecting shaft slides in the inner wall direction of the L-shaped plate one.

[0010] According to the above technical solution, the supporting device includes a square plate, the square plate is fixedly installed on the side surface of the cross plate, the bottom of the spray cylinder is fixedly installed with a placement frame, a T-shaped plate two is slidably penetrated through the inner wall of the placement frame, a telescopic spring rod two is fixedly installed on the inner wall of the placement frame, an L-shaped plate two is slidably installed on the surface of the placement frame, a chute is formed on the surface of the L-shaped plate two, and a slide plate one is slidably installed on the inner wall of the chute. When the square plate continues to move away from the socket cylinder, it will contact the side surface of the slide plate one, and at the same time, the slide plate one will fix the square plate to prevent the square plate from continuing to move away from the socket cylinder, effectively improving the work efficiency, enhancing the safety of the equipment, ensuring the cleanliness of the construction environment and the health of workers, and at the same time reducing the equipment maintenance cost.

[0011] According to the above technical solution, a groove is formed on the surface of the square plate, the free end of the telescopic spring rod two is fixedly connected to the bottom of the L-shaped plate two, the front end of the L-shaped plate two is set as an inclined surface, and the L-shaped plate two slides towards the inner wall of the placement frame under the action of the telescopic spring rod two.

[0012] According to the above technical solution, the cleaning device includes a connecting plate, the connecting plate is fixedly installed on the surface of the sliding cylinder, a filter plate is fixedly installed on the surface of the spray cylinder, a rotating shaft is fixedly installed at the output end of the exhaust fan, a scraping plate is fixedly installed on the circumferential surface of the rotating shaft, a vertical plate one is fixedly installed above the spray cylinder, a telescopic spring rod two is fixedly installed on the side surface of the vertical plate one, a concave plate is fixedly installed above the spray cylinder, a slide plate two is slidably installed in the inner wall of the concave plate, a vertical plate two is fixedly installed above the filter plate, a slide plate three is slidably installed in the inner wall of the vertical plate two, and a telescopic spring rod three is fixedly installed on the upper inner wall of the vertical plate two. When the slide plate three enters the movement track of the scraping plate, the scraping plate will collide with the slide plate three to generate rotation, and at the same time, it will better clean the foreign matters on the surface of the filter plate, effectively improving the cleaning efficiency, maintaining the high-efficiency operation of the equipment, further optimizing the construction environment, and improving the work efficiency.

[0013] According to the above technical solution, the scraping plate is slidably connected to the surface of the filter plate, the free end of the telescopic spring rod two is fixedly connected to the side surface of the slide plate two, and the free end of the telescopic spring rod three is fixedly connected to the upper part of the slide plate three. When the scraping plate rotates, it will clean the surface of the filter plate.

[0014] The present invention provides a spray dust reduction device for building construction. It has the following beneficial effects: (1)The spray dust suppression device for building construction, through the setting of the adjustment device, operates in cooperation among the socket cylinder, the sliding cylinder, the water outlet cylinder, the abutting plate, the mounting plate, the first T-shaped plate, and the first telescopic spring rod. The output end of the motor drives the spray cylinder to adjust and move upward. At the same time, the water outlet cylinder starts to supply water and discharge water, and the exhaust fan is started. The exhaust fan rotates and sprays dust on the water outlet cylinder. The abutting plate rotates and contacts the surface of the first T-shaped plate and squeezes the first T-shaped plate to slide away from the abutting plate, and adjusts the size of the water outlet of the sliding cylinder. Subsequently, when the spray dust suppression ends, the first T-shaped plate will return to the initial state under the action of the first telescopic spring rod, achieving a recyclable effect, enabling a more precise atomization effect, optimizing the dust suppression efficiency, saving water resources, adapting to different environmental conditions, and reducing the load of the equipment.

[0015] (2)The spray dust suppression device for building construction, through the setting of the collection device, operates in cooperation among the abutting plate, the collection box, the second vertical plate, the telescopic spring rod, the second connecting plate, the cover plate, and the buffer plate. When the spray cylinder starts to tilt and move upward, it will drive the water outlet cylinder on its surface to move away from the socket cylinder under the action of the connecting rod. The movement of the water outlet cylinder away from the socket cylinder will drive the bottom connecting shaft to slide along the inner wall of the first L-shaped plate. The sliding of the connecting shaft along the inner wall of the first L-shaped plate will drive the first L-shaped plate to rotate. When the first L-shaped plate rotates, it will drive the abutting plate to rotate, reducing the labor cost, improving the work efficiency, facilitating subsequent use, extending the service life of the equipment, and helping the atomized water flow to be more evenly distributed in the area where dust suppression is required, enhancing the dust suppression effect.

[0016] (3)The spray dust suppression device for building construction, through the setting of the support device, operates in cooperation among the square plate, the placement frame, the second T-shaped plate, the second telescopic spring rod, the second L-shaped plate, the chute, and the first sliding plate. The movement of the cross plate away from the socket cylinder will drive the side square plate to move away from the socket cylinder. When the square plate moves away from the socket cylinder, it will contact and squeeze the second L-shaped plate to slide along the inner wall of the placement frame under the action of the second telescopic spring rod. Subsequently, when the square plate continues to move away from the socket cylinder, it will contact the side of the first sliding plate, and at the same time, the first sliding plate will fix the square plate to prevent the square plate from continuing to move away from the socket cylinder, effectively improving the work efficiency, enhancing the safety of the equipment, ensuring the cleanliness of the construction environment and the health of workers, and at the same time reducing the equipment maintenance cost. When the work is completed, manually pushing the second T-shaped plate will drive the second L-shaped plate back to the initial state, facilitating the subsequent use of the equipment and increasing the service life of the equipment.

[0017] (4)The spray dust suppression device for building construction, through the setting of the cleaning device, through the coordinated operation among the connecting plate, filter plate, rotating shaft, scraper, vertical plate 1, telescopic spring rod 2, concave plate, sliding plate 2, vertical plate 2, sliding plate 3, and telescopic spring rod 3, when the exhaust fan rotates, it will drive the rotating shaft to rotate. The rotation of the rotating shaft drives the scraper on its surface to rotate. When the scraper rotates, it will clean the surface of the filter plate, which helps to improve the working efficiency of the equipment, extend the service life, ensure air quality, reduce maintenance costs, and lower energy consumption. When the sliding plate 2 is squeezed, it will move towards the end away from the connecting plate and contact and squeeze the sliding plate 3 to slide along the inner wall of the vertical plate 2. When the sliding plate 3 enters the movement trajectory of the scraper, the scraper will collide with the sliding plate 3 to generate rotation, and at the same time, it will better clean the foreign matters on the surface of the filter plate, effectively improving the cleaning efficiency, maintaining the efficient operation of the equipment, further optimizing the construction environment, and improving the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the whole of the present invention; Figure 2 is a schematic structural diagram of the socket cylinder and the water outlet cylinder of the present invention; Figure 3 is a schematic structural diagram of the connecting shaft and the L-shaped plate 1 of the present invention; Figure 4 is a schematic structural diagram of the abutting plate and the socket cylinder of the present invention; Figure 5 For the present invention Figure 4 is an enlarged schematic structural diagram of part A in; Figure 6 is a schematic structural diagram of the spray tube and the fixing plate of the present invention; Figure 7 is a schematic structural diagram of the telescopic spring rod 2 and the L-shaped plate 2 of the present invention; Figure 8 is a schematic structural diagram of the sliding plate 2 and the concave plate of the present invention; Figure 9 is a schematic structural diagram of the scraper and the rotating shaft of the present invention.

[0019] In the figure: 1, base; 2, motor; 3, spray barrel; 4, exhaust fan; 51, socket tube; 52, water outlet tube; 53, sliding tube; 54, abutting plate; 55, mounting plate; 56, first T-shaped plate; 57, first telescopic elastic rod; 58, connecting shaft; 59, first L-shaped plate; 510, cross plate; 511, connecting rod; 512, fixing plate; 61, square plate; 62, placing frame; 63, second T-shaped plate; 64, second telescopic elastic rod; 65, second L-shaped plate; 66, chute; 67, first sliding plate; 71, connecting plate; 72, filter plate; 73, rotating shaft; 74, scraping plate; 75, first vertical plate; 76, third telescopic elastic rod; 77, concave plate; 78, second sliding plate; 79, second vertical plate; 710, third sliding plate; 711, fourth telescopic elastic rod. Detailed implementation manner

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-9, an embodiment of the present invention is: a spray dust suppression device for building construction, including a base 1. An electric motor 2 is fixedly installed on the upper inner wall of the base 1. The output end of the electric motor 2 is fixedly installed with a spray barrel 3. An exhaust fan 4 is arranged on the inner wall of the spray barrel 3. An adjusting device for adjusting the angle of the spray barrel 3 is arranged on the circumferential surface of the spray barrel 3. The adjusting device includes a socket cylinder 51 which is rotatably installed on the circumferential surface of the spray barrel 3. A water outlet cylinder 52 is fixedly installed on the surface of the spray barrel 3. A sliding cylinder 53 is slidably installed on the circumferential surface of the spray barrel 3. A resisting plate 54 is fixedly installed on the inner wall of the socket cylinder 51. A mounting plate 55 is fixedly installed on the circumferential surface of the water outlet cylinder 52. A T-shaped plate one 56 is slidably installed on the inner wall of the mounting plate 55. A telescopic elastic rod one 57 is fixedly installed on the inner wall of the mounting plate 55. A connecting shaft 58 is fixedly installed at the bottom of the sliding cylinder 53. An L-shaped plate one 59 is fixedly installed at the bottom of the water outlet cylinder 52. A cross plate 510 is fixedly installed on the surface of the sliding cylinder 53. A connecting rod 511 is rotatably installed on the side surface of the cross plate 510. A fixing plate 512 is fixedly installed above the base 1. A supporting device for supporting the sliding cylinder 53 is arranged on the surface of the sliding cylinder 53. A cleaning device for cleaning the exhaust fan 4 is arranged on the surface of the exhaust fan 4. The resisting plate 54 rotates and contacts the surface of the T-shaped plate one 56 and squeezes the T-shaped plate one 56 to slide away from the resisting plate 54, and adjusts the size of the water outlet of the water outlet cylinder 52. Subsequently, when the spray dust removal ends, the T-shaped plate one 56 will return to the initial state under the action of the telescopic elastic rod one 57, achieving a recyclable effect, enabling a more precise atomization effect, optimizing the dust suppression efficiency, saving water resources, adapting to different environmental conditions, and reducing the load of the equipment.

[0022] The shape of the resisting plate 54 is set to be arc-shaped. The free end of the telescopic elastic rod one 57 is fixedly connected to the surface of the T-shaped plate one 56. The resisting plate 54 rotates and contacts the surface of the T-shaped plate one 56 and squeezes the T-shaped plate one 56 to slide away from the resisting plate 54.

[0023] One end of the connecting rod 511 away from the cross plate 510 is fixedly connected to the side surface of the fixing plate 512. A plurality of resisting plates 54 are provided, and the plurality of resisting plates 54 are symmetrically distributed with the socket cylinder 51 as the center. When the spray barrel 3 starts to tilt and move upward, it will drive the water outlet cylinder 52 on its surface to move away from the socket cylinder 51 under the action of the connecting rod 511.

[0024] An inclined groove is formed on the surface of the L-shaped plate one 59. The connecting shaft 58 is slidably connected to the inner wall of the inclined groove, and the connecting shaft 58 slides in the inner wall direction of the L-shaped plate one 59.

[0025] During the operation of this embodiment: Start the motor 2. The output end of the motor 2 drives the spray tube 3 to adjust and move upward. At the same time, the water outlet tube 52 starts to supply water and discharge water, and start the exhaust fan 4. The exhaust fan 4 rotates and sprays and dust-removes the water outlet tube 52. When the spray tube 3 starts to tilt and move upward, it will drive the sliding tube 53 on the surface to move away from the socket tube 51 under the action of the connecting rod 511. The movement of the sliding tube 53 away from the socket tube 51 will drive the connecting shaft 58 at the bottom to slide along the inner wall direction of the L-shaped plate 59. The sliding of the connecting shaft 58 along the inner wall direction of the L-shaped plate 59 will drive the rotating L-shaped plate 59. While the L-shaped plate 59 rotates, it will drive the abutting plate 54 to rotate, reducing the labor cost, improving the work efficiency, facilitating subsequent use, extending the service life of the equipment, helping the atomized water flow to be more evenly distributed in the area where dust reduction is required, and enhancing the dust reduction effect. The abutting plate 54 rotates and contacts the surface of the T-shaped plate 56 and squeezes the T-shaped plate 56 to slide away from the abutting plate 54, and adjusts the size of the water outlet of the water outlet tube 52. Subsequently, when the spray dust removal is over, the T-shaped plate 56 will return to the initial state under the action of the telescopic spring rod 57 to achieve a recyclable effect, which can achieve a more precise atomization effect, optimize the dust reduction efficiency, save water resources, adapt to different environmental conditions, and reduce the load of the equipment.

[0026] Please refer to Figures 1-9 , on the basis of the above embodiment, in another embodiment of the present invention, the support device includes a square plate 61. The square plate 61 is fixedly installed on the side of the cross plate 510. The bottom of the spray tube 3 is fixedly installed with a placement frame 62. A T-shaped plate 63 slides through the inner wall of the placement frame 62. A telescopic spring rod 64 is fixedly installed on the inner wall of the placement frame 62. An L-shaped plate 65 is slidably installed on the surface of the placement frame 62. A chute 66 is opened on the surface of the L-shaped plate 65. A slide plate 67 is slidably installed on the inner wall of the chute 66. When the square plate 61 moves away from the socket tube 51, it will contact and squeeze the L-shaped plate 65 to slide into the inner wall of the placement frame 62 under the action of the telescopic spring rod 64. Subsequently, when the square plate 61 continues to move away from the socket tube 51, it will contact the side of the slide plate 67, and at the same time, the slide plate 67 will fix the square plate 61 to prevent the square plate 61 from continuing to move away from the socket tube 51, effectively improving the work efficiency, enhancing the safety of the equipment, ensuring the cleanliness of the construction environment and the health of workers, and at the same time reducing the equipment maintenance cost.

[0027] A groove is opened on the surface of the square plate 61. The free end of the telescopic spring rod 64 is fixedly connected to the bottom of the L-shaped plate 65. The front end of the L-shaped plate 65 is set as an inclined surface. The L-shaped plate 65 slides into the inner wall of the placement frame 62 under the action of the telescopic spring rod 64.

[0028] The cleaning device includes a connecting plate 71 which is fixedly installed on the surface of the sliding cylinder 53. A filter plate 72 is fixedly installed on the surface of the spraying cylinder 3. The output end of the exhaust fan 4 is fixedly installed with a rotating shaft 73, and a scraping plate 74 is fixedly installed on the circumferential surface of the rotating shaft 73. A first vertical plate 75 is fixedly installed above the spraying cylinder 3, and a third telescopic elastic rod 76 is fixedly installed on the side of the first vertical plate 75. A concave plate 77 is fixedly installed above the spraying cylinder 3, and a second sliding plate 78 is slidably installed on the inner wall of the concave plate 77. A second vertical plate 79 is fixedly installed above the filter plate 72, and a third sliding plate 710 is slidably installed on the inner wall of the second vertical plate 79. A fourth telescopic elastic rod 711 is fixedly installed on the upper inner wall of the second vertical plate 79. When the third sliding plate 710 enters the movement track of the scraping plate 74, the scraping plate 74 will collide with the third sliding plate 710 to cause rotation, and at the same time, it will better clean the foreign matters on the surface of the filter plate 72, effectively improving the cleaning efficiency, maintaining the efficient operation of the equipment, further optimizing the construction environment and improving the work efficiency.

[0029] The scraping plate 74 is slidably connected to the surface of the filter plate 72. The free end of the third telescopic elastic rod 76 is fixedly connected to the side of the second sliding plate 78. The free end of the fourth telescopic elastic rod 711 is fixedly connected to the upper part of the third sliding plate 710. When the scraping plate 74 rotates, it will clean the surface of the filter plate 72.

[0030] When this embodiment works: At the same time, when the sliding cylinder 53 moves away from the socket cylinder 51 under the action of the connecting rod 511, it will drive the cross plate 510 to move away from the socket cylinder 51. The cross plate 510 moving away from the socket cylinder 51 will drive the square plate 61 on the side to move away from the socket cylinder 51. When the square plate 61 moves away from the socket cylinder 51, it will contact and squeeze the second L-shaped plate 65 to slide on the inner wall of the placement frame 62 under the action of the second telescopic elastic rod 64. Subsequently, when the square plate 61 continues to move away from the socket cylinder 51, it will contact the side of the first sliding plate 67, and at the same time, the first sliding plate 67 will fix the square plate 61 to prevent the square plate 61 from continuing to move away from the socket cylinder 51, effectively improving the work efficiency, enhancing the safety of the equipment, ensuring the cleanliness of the construction environment and the health of workers, and at the same time reducing the equipment maintenance cost. When the work is over, manually pushing the second T-shaped plate 63 will drive the second L-shaped plate 65 back to the initial state, facilitating the subsequent use of the equipment and increasing the service life of the equipment.

[0031] Meanwhile, when the exhaust fan 4 rotates, it drives the rotation of the rotating shaft 73. The rotation of the rotating shaft 73 drives the rotation of the scraper 74 on its surface. When the scraper 74 rotates, it cleans the surface of the filter plate 72, which helps to improve the working efficiency of the equipment, extend its service life, ensure air quality, reduce maintenance costs, and lower energy consumption. When the sliding cylinder 53 moves away from the socket cylinder 51, it drives the side connecting plate 71 to move away from the socket cylinder 51. When the connecting plate 71 moves away from the socket cylinder 51, it contacts and presses the second slide plate 78. When the second slide plate 78 is pressed, it moves towards one end away from the connecting plate 71 and contacts and presses the third slide plate 710 to slide in the direction of the inner wall of the second vertical plate 79. When the third slide plate 710 enters the movement track of the scraper 74, the scraper 74 will collide with the third slide plate 710 to cause rotation, and at the same time, it will better clean the foreign matters on the surface of the filter plate 72, effectively improving the cleaning efficiency, maintaining the high-efficiency operation of the equipment, further optimizing the construction environment, and improving the working efficiency.

[0032] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spray dust suppression device for building construction, comprising a base, characterized in that: An electric motor is fixedly installed on the inner wall above the base. The output end of the electric motor is fixedly installed with a spray tube. An exhaust fan is arranged on the inner wall of the spray tube. An adjusting device for adjusting the angle of the spray tube is arranged on the circumferential surface of the spray tube. The adjusting device includes a sleeved tube, and the sleeved tube is rotatably installed on the circumferential surface of the spray tube. A water outlet tube is fixedly installed on the surface of the spray tube. A sliding tube is slidably installed on the circumferential surface of the spray tube. A resisting plate is fixedly installed on the inner wall of the sleeved tube. A mounting plate is fixedly installed on the circumferential surface of the water outlet tube. A first T-shaped plate is slidably installed on the inner wall of the mounting plate. A first telescopic elastic rod is fixedly installed on the inner wall of the mounting plate. A connecting shaft is fixedly installed at the bottom of the sliding tube. A first L-shaped plate is fixedly installed at the bottom of the sleeved tube. A cross plate is fixedly installed on the surface of the sliding tube. A connecting rod is rotatably installed on the side surface of the cross plate. A fixing plate is fixedly installed above the base. A supporting device for supporting the sliding tube is arranged on the surface of the sliding tube. A cleaning device for cleaning the exhaust fan is arranged on the surface of the exhaust fan.

2. The spray dust suppression device for building construction according to claim 1, characterized in that: The shape of the resisting plate is arc-shaped, and the free end of the first telescopic elastic rod is fixedly connected to the surface of the first T-shaped plate.

3. The spray dust suppression device for building construction according to claim 2, characterized in that: One end of the connecting rod far away from the cross plate is fixedly connected to the side surface of the fixing plate. A plurality of resisting plates are arranged, and the plurality of resisting plates are symmetrically distributed with the sleeved tube as the center.

4. The spray dust suppression device for building construction according to claim 3, characterized in that: An inclined groove is formed on the surface of the first L-shaped plate, and the connecting shaft is slidably connected to the inner wall of the inclined groove.

5. The spray dust suppression device for building construction according to claim 4, characterized in that: The supporting device includes a square plate, and the square plate is fixedly installed on the side surface of the cross plate. A placing frame is fixedly installed at the bottom of the spray tube. A second T-shaped plate is slidably penetrated through the inner wall of the placing frame. A second telescopic elastic rod is fixedly installed on the inner wall of the placing frame. An L-shaped plate is slidably installed on the surface of the placing frame. A sliding groove is formed on the surface of the L-shaped plate, and a first sliding plate is slidably installed on the inner wall of the sliding groove.

6. The spray dust suppression device for building construction according to claim 5, characterized in that: A groove is formed on the surface of the square plate, and the free end of the second telescopic elastic rod is fixedly connected to the bottom of the L-shaped plate. The front end of the L-shaped plate is a slope.

7. The spray dust suppression device for building construction according to claim 6, characterized in that: The cleaning device includes a connecting plate, and the connecting plate is fixedly installed on the surface of the sliding tube. A filter plate is fixedly installed on the surface of the spray tube. A rotating shaft is fixedly installed at the output end of the exhaust fan. A scraping plate is fixedly installed on the circumferential surface of the rotating shaft. A first vertical plate is fixedly installed above the spray tube. A third telescopic elastic rod is fixedly installed on the side surface of the first vertical plate. A concave plate is fixedly installed above the spray tube. A second sliding plate is slidably installed on the inner wall of the concave plate. A second vertical plate is fixedly installed above the filter plate. A third sliding plate is slidably installed on the inner wall of the second vertical plate. A fourth telescopic elastic rod is fixedly installed on the inner wall above the second vertical plate.

8. The spray dust suppression device for building construction according to claim 7, characterized in that: The scraping plate is slidably connected to the surface of the filter plate. The free end of the third telescopic elastic rod is fixedly connected to the side surface of the second sliding plate. The free end of the fourth telescopic elastic rod is fixedly connected to the upper part of the third sliding plate.

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