A dust control spray device for construction sites

Abstract

This application discloses a dust control spray device for construction sites, belonging to the field of spray devices. It includes a housing, inside which is a water tank. Inside the water tank is a water pump. The output end of the water pump is fixedly connected to a delivery pipe, and the other end of the delivery pipe is connected to a duct. This application uses a motor to drive a rotating shaft and ratchet, allowing the duct's tilt angle to be adjusted as needed. This enables the device to flexibly adapt to different construction environments, enhancing the spray range and effect. The adjustable block design allows for adjustment of the duct's bottom support through inclined blocks of different heights, optimizing the spray angle and spray range and improving dust suppression. The tilt angle of the duct and the spray coverage area can be easily controlled via knobs and threaded rods. The operation is simple and flexible, suitable for various construction sites.

Description

Technical Field

[0001] This application relates to the field of spray devices, and more specifically, to a spray device for controlling dust during construction. Background Technology

[0002] With the development of society, high-rise buildings are springing up everywhere, and the problem of construction dust is becoming increasingly serious. Steel bars, cement, sand and gravel are everywhere on construction sites, and dust will fly whenever construction is carried out. In the past, we relied on manual water spraying or water trucks to spray water, which was time-consuming, laborious and ineffective. Therefore, workers have started to use fully automatic sprinkler systems.

[0003] For example, Chinese Patent Publication No. CN109908685A discloses the following technical solution: a construction dust control spray device, including a housing, with a storage slot at the top of the housing, and a pneumatic cylinder installed at the bottom of the housing corresponding to the storage slot. A cylinder piston rod is installed at the top of the pneumatic cylinder, and a worktable is welded to the top of the cylinder piston rod. This invention has a scientific and reasonable structure, is safe and convenient to use, and is equipped with a pneumatic cylinder, a cylinder piston rod, and a worktable. The pneumatic cylinder and cylinder piston rod raise the overall position of the worktable, increasing the position of the air duct. This solves the problem that existing dust suppression sprayers, under the action of gravity, will descend along a parabolic trajectory after spraying, and the difficulty in adjusting the height of the air duct makes it difficult to change the starting position of the parabola, thus limiting the range of dust suppression spraying. At the same time, hollow columns, reserved holes, and through holes are provided to facilitate the connection between the electrical structure inside the air duct and the control electrical components inside the housing, and also to facilitate the installation and passage of water pipes.

[0004] The existing technology has the following problems:

[0005] The height and tilt adjustment of the air duct rely on a pneumatic cylinder and a manual positioning post, which has low precision. The fixing method of the positioning post and auxiliary limit post relies on spring force, and spring fatigue may cause positioning failure after long-term use. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a construction dust control spray device, which solves the problems mentioned in the background section.

[0007] To achieve the above objectives, this application provides a construction dust control spray device, including a housing, a water tank inside the housing, a water pump inside the water tank, a delivery pipe fixedly connected to the output end of the water pump, and a wind tunnel at the other end of the delivery pipe.

[0008] The upper end of the chassis is provided with a mounting plate, the bottom of which is fixedly connected to a motor. The output end of the motor is fixedly connected to a rotating shaft, and a ratchet is fixedly sleeved on the outer wall of the rotating shaft. The upper end of the mounting plate is rotatably connected to an annular plate via a bearing. An annular groove is formed on the inner wall of the annular plate, and a pawl is rotatably connected to the inner wall of the annular groove via a pin. A spring is hinged to the inner wall of the annular groove, and the other end of the spring is hinged to the pawl. A rotating plate is fixedly connected to the top of the rotating shaft, and a sliding shaft is provided at the upper end of the rotating plate. A fixed plate A is fixedly connected to the upper end of the mounting plate, and a fixed plate B is fixedly connected to the outer wall of the fixed plate A. A rotating rod is fixedly connected to the upper end of the fixed plate B, and the bottom of the rotating rod is hinged to the air duct. The bottom of the rotating rod passes through the fixed plate B and is fixedly connected to a rectangular frame. The sliding shaft is slidably connected inside the rectangular frame. A cleaning component is assembled at the upper end of the annular plate, and a mixing component is assembled inside the chassis.

[0009] Preferably, an adjusting block is fixedly connected to the upper end of the annular plate. There are three adjusting blocks with different heights, and the two ends of the adjusting blocks are set as inclined surfaces.

[0010] Preferably, a groove A is provided in the middle of the rotating plate, a threaded rod is rotatably connected inside the groove A, a movable block is threadedly connected to the outer wall of the threaded rod, the upper end of the movable block is fixedly connected to the sliding shaft, and one end of the threaded rod passes through the rotating plate and is fixedly connected to a knob.

[0011] Preferably, a support rod is hinged to the bottom of the air duct, and a roller is provided at the bottom of the support rod.

[0012] Preferably, the upper end of the mounting plate is provided with a through groove, the inside of the through groove is provided with a breathable mesh, the bottom of the mounting plate is provided with a removable drying box, the upper end of the chassis is provided with a cylinder, and the output end of the cylinder is fixedly connected to the bottom of the mounting plate.

[0013] Preferably, the cleaning assembly includes a movable frame disposed around the periphery of the annular plate, toothed blocks disposed on both sides of the inner side of the movable frame, a plurality of cylinders fixedly connected to the upper end of the annular plate, a connecting shaft fixedly connected to the outer wall of the movable frame, a cleaning roller rotatably sleeved on the outer wall of the connecting shaft, and the cylinders meshing between the toothed blocks.

[0014] Preferably, the upper end of the mounting plate is provided with a sliding groove B, and the bottom of the movable frame is fixedly connected with a sliding rod, which is slidably connected inside the sliding groove B.

[0015] Preferably, the mixing component includes a connecting rod, which is fixedly connected to the bottom of a sliding rod. A toothed plate is fixedly connected to the bottom of the connecting rod, and extrusion rods are fixedly connected to both ends of the toothed plate. A stirring shaft is rotatably connected inside the water tank. A stirring rod is fixedly connected to the outer wall of the stirring shaft, and a gear is fixedly connected to the top of the stirring shaft. A rubber reservoir is fixedly connected to the inner wall of the housing, and a liquid outlet pipe is fixedly connected to the outer wall of the rubber reservoir. A liquid storage tank is fixedly connected to the upper end of the housing, and a filling port is opened at the upper end of the liquid storage tank. A connecting pipe is fixedly connected to the bottom of the liquid storage tank, and the bottom of the connecting pipe is fixedly connected to the rubber reservoir.

[0016] Preferably, the liquid outlet pipe is equipped with a one-way valve, the toothed plate meshes with a gear, the upper end of the housing and the bottom of the slide groove B are provided with movable grooves, the connecting rod moves through the movable grooves, and the upper end of the connecting rod is fixedly connected to the bottom of the slide rod.

[0017] The advantages of this application are:

[0018] (1) This application uses a motor to drive a rotating shaft and ratchet, etc. The tilt angle of the air duct can be adjusted as needed, which makes the equipment flexible to adapt to different construction environments, enhances the spraying range and effect. The design of the adjustment block can realize the support adjustment of the bottom of the air duct through inclined blocks of different heights, so that the spray angle and spraying range are optimized and the dust reduction effect is improved. The tilt angle of the air duct and the spray coverage range can be easily controlled by the knob and threaded rod adjustment. The operation is simple and flexible and suitable for different construction sites.

[0019] (2) This application achieves automatic cleaning of the breathable mesh by setting up a cleaning component through a moving frame, toothed blocks, and cleaning rollers. This effectively prevents the breathable mesh from being clogged by dust, ensures the continuous normal operation of the equipment, and maintains good air permeability, thereby ensuring the drying effect of the drying box.

[0020] (3) This application achieves automatic replenishment of dust suppression agent by setting up a mixing component with a rubber reservoir and a squeezing rod. Through this mechanism, the water and the agent can be continuously and effectively mixed in the water tank, ensuring the continuity and stability of the dust suppression effect. The cooperation between the stirring shaft and the stirring rod ensures that the water and the dust suppression agent in the water tank can be fully mixed, avoiding sedimentation or stratification of the agent and improving the effect of dust suppression operation. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings:

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

[0023] Figure 2 This is a front structural diagram of the present invention;

[0024] Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention;

[0025] Figure 4 This is the invention Figure 3 Enlarged structural diagram at point A in the middle;

[0026] Figure 5 This is the invention Figure 1 Enlarged structural diagram at point B;

[0027] Figure 6 This is a top cross-sectional view of the present invention;

[0028] Figure 7 This is the invention Figure 6 Enlarged structural diagram at point C.

[0029] In the above diagram, 1. Chassis; 2. Water tank; 3. Delivery pipe; 4. Air duct; 51. Mounting plate; 52. Motor; 53. Shaft; 54. Annular plate; 55. Rotating plate; 56. Sliding shaft; 57. Fixed plate A; 58. Fixed plate B; 59. Rotating rod; 510. Rectangular frame; 511. Adjusting block; 512. Slide groove A; 513. Threaded rod; 514. Moving block; 515. Knob; 517. Annular groove; 518. Pawl; 519. Spring; 520. Ratchet; 6. 61. Cleaning component; 62. Moving frame; 63. Toothed block; 64. Cylinder; 65. Connecting shaft; 66. Cleaning roller; 67. Slide rail B; 78. Slide rod; 79. Mixing component; 70. Connecting rod; 71. Toothed plate; 72. Extrusion rod; 73. Stirring shaft; 74. Stirring rod; 75. Gear; 76. Rubber reservoir; 77. Discharge pipe; 78. One-way valve; 79. Reservoir tank; 70. Filling port; 710. Movable groove; 8. Breathable mesh; 9. Drying box; 10. Cylinder. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the purposes of describing embodiments of this application herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0032] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0033] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0034] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] Example 1: Please refer to Figure 1-4A construction dust control spray device includes a housing 1, inside which is a water tank 2 for storing clean water and dust suppressant, with a capacity of ≥500L and an inner wall coated with an anti-corrosion coating. Inside the water tank 2 is a water pump, and the output end of the water pump is fixedly connected to a delivery pipe 3. The other end of the delivery pipe 3 is equipped with a wind duct 4. The water is atomized and sprayed onto the construction area through high-pressure nozzles, with a spray coverage radius of ≥15 meters. The wind duct 4 has built-in guide vanes to optimize airflow distribution and improve droplet uniformity.

[0037] A mounting plate 51 is provided at the upper end of the chassis 1. A motor 52 is fixedly connected to the bottom of the mounting plate 51. A rotating shaft 53 is fixedly connected to the output end of the motor 52. A ratchet 520 is fixedly sleeved on the outer wall of the rotating shaft 53, which transmits power in one direction. It rotates freely when rotating clockwise and drives the annular plate 54 to rotate when rotating counterclockwise. The annular plate 54 is rotatably connected to the upper end of the mounting plate 51 via a bearing. An annular groove 517 is formed on the inner wall of the annular plate 54. A pawl 518 is rotatably connected to the inner wall of the annular groove 517 via a pin. A spring 519 is hinged to the inner wall of the annular groove 517. The spring 519 presses the tooth groove of the ratchet 520 to achieve counterclockwise rotation. The needle lock is engaged. The other end of the spring 519 is hinged to the pawl 518. A rotating plate 55 is fixedly connected to the top of the rotating shaft 53. A sliding shaft 56 is provided at the upper end of the rotating plate 55. A fixed plate A57 is fixedly connected to the upper end of the mounting plate 51. A fixed plate B58 is fixedly connected to the outer wall of the fixed plate A57. A rotating rod 59 is fixedly connected to the upper end of the fixed plate B58. The bottom of the rotating rod 59 is hinged to the air duct 4. The bottom of the rotating rod 59 passes through the fixed plate B58 and is fixedly connected to a rectangular frame 510. The sliding shaft 56 is slidably connected inside the rectangular frame 510. A cleaning component 6 is assembled at the upper end of the annular plate 54. A mixing component 7 is assembled inside the casing 1. An adjusting block 511 is fixedly connected to the upper end of the annular plate 54. The adjusting block 511 has three blocks of different heights. The three inclined blocks of different heights support the rollers at the bottom of the air duct 4 to achieve tilt angle adjustment. The two ends of the adjusting block 511 are set as inclined surfaces. A sliding groove A512 is provided in the middle of the rotating plate 55. A threaded rod 513 is rotatably connected inside the sliding groove A512. A moving block 514 is threadedly connected to the outer wall of the threaded rod 513. The upper end of the moving block 514 is fixedly connected to the sliding shaft 56. One end of the threaded rod 513 passes through the rotating plate 55 and is fixedly connected to a knob 515. A support rod is hinged to the bottom of the air duct 4. A roller is provided at the bottom of the support rod. The roller is made of nylon to reduce friction noise with the adjusting block 511. A through groove is provided at the upper end of the mounting plate 51. A breathable mesh 8 is provided inside the through groove. A removable drying box 9 is provided at the bottom of the mounting plate 51. The activated carbon in the drying box 9 can effectively absorb moisture from the surrounding area of ​​the top of the workbench through the breathable mesh 8.

[0038] A cylinder 10 is installed at the upper end of the chassis 1, and the output end of the cylinder 10 is fixedly connected to the bottom of the mounting plate 51.

[0039] In use, the water pump first pumps the mixed water inside the water tank 2 through the delivery pipe 3 from the rear of the ventilation duct 4 to form a water mist inside the ventilation duct 4. At the same time, the ventilation duct 4 is started to spray the water mist onto the construction site for dust suppression. Simultaneously, the motor 52 is started to drive the rotating shaft 53 to rotate clockwise. The ratchet 520 sleeved on the outside of the rotating shaft 53 will also rotate clockwise. When the ratchet 520 rotates clockwise, the pawl 518 will not obstruct the ratchet 520, so the annular plate 54 will not rotate at all. Instead, the rotating shaft 53 will drive the rotating plate 55 at its upper end to rotate. When the rotating plate 55 rotates, the sliding shaft 56 at the upper end of the rotating plate 55 will rotate around the rotating shaft 53. As the sliding shaft 56 rotates, it will slide inside the rectangular frame 510, causing the rectangular frame 510 to swing within a certain range. This will cause the rotating rod 59 to swing within a certain range, which in turn will cause the air duct 4 hinged at the top of the rotating rod 59 to swing, thereby increasing the spraying range. When it is necessary to adjust the swing amplitude, turn the knob 515 to rotate the threaded rod 513, which will then cause the moving block 514 threaded to the outer wall to slide inside the slide groove A512. The motor 52 moves the shaft 56, causing it to change position. When the positions of the shaft 56 and the rotating rod 59 change, the swing angle of the rotating rod 59 also changes (the closer the shaft 56 and the rotating rod 59 are, the smaller the swing angle of the rotating rod 59). When the tilt angle of the air duct 4 needs to be changed, the motor 52 needs to drive the rotating shaft 53 to rotate counterclockwise. The ratchet 520 on the outer wall of the rotating shaft 53 will then rotate counterclockwise. At this time, the pawl 518, under the action of the spring 519, will always be engaged in the groove on the outer wall of the ratchet 520. Therefore, the ratchet 520 rotates counterclockwise... When rotating, the entire annular plate 54 will rotate by pushing the pawl 518. When the annular plate 54 rotates, since the fixed plate A57 is fixedly connected to the upper end of the mounting plate 51, the fixed plate B58 on its outer wall and the air duct 4 connected to the upper end of the fixed plate B58 through the rotating rod 59 will not rotate as a whole. After the annular plate 54 rotates, it will drive the adjusting block 511 at its upper end to rotate. Therefore, the roller at the lower end of the bottom support rod of the air duct 4 will move to the upper end of different adjusting blocks 511. Since the height of the adjusting blocks 511 is different, the tilt of the air duct 4 can be adjusted.

[0040] Example 2: Please refer to Figure 1-5 The cleaning component 6 includes a movable frame 61, which is made of aluminum alloy, making it lightweight and corrosion resistant. The movable frame 61 is located on the periphery of the annular plate 54. Toothed blocks 62 are provided on both sides inside the movable frame 61. Multiple cylinders 63 are fixedly connected to the upper end of the annular plate 54. A connecting shaft 64 is fixedly connected to the outer wall of the movable frame 61. A cleaning roller 65 is rotatably sleeved on the outer wall of the connecting shaft 64. The surface of the cleaning roller 65 is covered with a hard brush, which can be disassembled and replaced. The cylinders 63 are engaged between the toothed blocks 62.

[0041] The upper end of the mounting plate 51 is provided with a sliding groove B66, and the bottom of the movable frame 61 is fixedly connected with a sliding rod 67, which is slidably connected inside the sliding groove B66.

[0042] In use, when the annular plate 54 rotates, its rotational motion is transmitted to the toothed block 62 inside the moving frame 61 via the cylinder 63 fixedly connected to its upper end. Since the cylinder 63 and the toothed block 62 are meshed together, the rotation of the annular plate 54 pushes the toothed block 62, thereby causing the entire moving frame 61 to move horizontally. This mechanical linkage design ensures that the rotational motion of the annular plate 54 can be efficiently and stably converted into the linear motion of the moving frame 61. To ensure the stability of the moving frame 61 during movement, the slide rod 67 fixedly connected to its bottom slides along the inner wall of the slide groove B66. The slide groove B66 acts as a guide rail, limiting the direction of movement of the moving frame 61 and preventing it from deviating or wobbling. The fitting precision between the slide bar 67 and the slide groove B66 directly affects the smoothness of the movement of the moving frame 61. Therefore, the inner wall of the slide groove B66 is usually machined with high precision and may be embedded with self-lubricating materials (such as PTFE bushings) to reduce frictional resistance. When the moving frame 61 moves horizontally, the cleaning roller 65, which is fixedly connected to its outer wall via the connecting shaft 64, also moves accordingly. The cleaning roller 65 is usually composed of a hard brush or a rubber scraper, and its outer surface is in direct contact with the breathable mesh 8 inside the groove. As the cleaning roller 65 moves, the bristles or scraper on its surface brush or scrape the surface of the breathable mesh 8, removing accumulated dust, grit, and other debris. This automatic cleaning mechanism effectively prevents the breathable mesh 8 from becoming clogged, ensuring that its breathability is always at its best.

[0043] Example 3: Please refer to Figure 1-7 The mixing component 7 includes a connecting rod 71, which is fixedly connected to the bottom of the slide rod 67. A toothed plate 72 is fixedly connected to the bottom of the connecting rod 71, and a squeezing rod 73 is fixedly connected to both ends of the toothed plate 72. A stirring shaft 74 is rotatably connected inside the water tank 2. A stirring rod 75 is fixedly connected to the outer wall of the stirring shaft 74, and a gear 76 is fixedly connected to the top of the stirring shaft 74. A rubber reservoir 77 is fixedly connected to the inner wall of the housing 1. This is an elastic container that discharges the treatment agent when pressurized and replenishes it from the storage tank 710 through a connecting pipe when reset. An outlet pipe 78 is fixedly connected to the outer wall of the rubber reservoir 77. A storage tank 710 is fixedly connected to the upper end of the housing 1. This tank stores dust-suppressing treatment agents (such as dust suppressants and flocculants) with a capacity ≥50L. A filling port 711 is opened at the upper end of the storage tank 710. A connecting pipe is fixedly connected to the bottom of the storage tank 710, and the bottom of the connecting pipe is fixedly connected to the rubber reservoir 77.

[0044] The liquid outlet pipe 78 is equipped with a one-way valve 79, the toothed plate 72 meshes with the gear 76, the upper end of the housing 1 and the bottom of the slide B66 are provided with a movable groove 713, the connecting rod 71 moves through the movable groove 713, and the upper end of the connecting rod 71 is fixedly connected to the bottom of the slide rod 67.

[0045] In use, when the moving frame 61 moves, it drives the connecting rod 71 via the slide rod 67, which in turn drives the toothed plate 72 at the bottom to move. When the toothed plate 72 moves, it drives the squeezing rod 73 on its side to squeeze. When the squeezing rod 73 squeezes the rubber reservoir 77, the treatment agent inside the rubber reservoir 77 will enter the water tank 2 through the outlet pipe 78, thereby replenishing the treatment agent. When the squeezing rod 73 returns to its original position, the treatment agent inside the reservoir 710 will enter the rubber reservoir 77 through the connecting pipe under the action of gravity. At the same time, when the toothed plate 72 moves, the gear 76 meshing with it will rotate, thereby driving the stirring shaft 74 and stirring rod 75 at the bottom to rotate, thereby achieving the mixing of the clean water and treatment agent inside the water tank 2.

[0046] 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. A dust control spray device for construction sites, comprising a housing (1), characterized in that, The machine casing (1) is equipped with a water tank (2), and the water tank (2) is equipped with a water pump. The output end of the water pump is fixedly connected to a delivery pipe (3), and the other end of the delivery pipe (3) is equipped with a duct (4). The upper end of the chassis (1) is provided with a mounting plate (51), and a motor (52) is fixedly connected to the bottom of the mounting plate (51). The output end of the motor (52) is fixedly connected to a rotating shaft (53). A ratchet (520) is fixedly sleeved on the outer wall of the rotating shaft (53). An annular plate (54) is rotatably connected to the upper end of the mounting plate (51) through a bearing. An annular groove (517) is opened on the inner wall of the annular plate (54). A pawl (518) is rotatably connected to the inner wall of the annular groove (517) through a pin. A spring (519) is hinged to the inner wall of the annular groove (517). The other end of the spring (519) is hinged to the pawl (518). The top of the rotating shaft (53) is... A rotating plate (55) is fixedly connected, and a sliding shaft (56) is provided at the upper end of the rotating plate (55). A fixed plate A (57) is fixedly connected at the upper end of the mounting plate (51). A fixed plate B (58) is fixedly connected to the outer wall of the fixed plate A (57). A rotating rod (59) is fixedly connected at the upper end of the fixed plate B (58). The bottom of the rotating rod (59) is hinged to the air duct (4). The bottom of the rotating rod (59) passes through the fixed plate B (58) and is fixedly connected to a rectangular frame (510). The sliding shaft (56) is slidably connected inside the rectangular frame (510). A cleaning component (6) is assembled at the upper end of the annular plate (54). A mixing component (7) is assembled inside the casing (1). The cleaning component (6) includes a movable frame (61) which is disposed around the annular plate (54). Toothed blocks (62) are provided on both sides inside the movable frame (61). Multiple cylinders (63) are fixedly connected to the upper end of the annular plate (54). A connecting shaft (64) is fixedly connected to the outer wall of the movable frame (61). A cleaning roller (65) is rotatably sleeved on the outer wall of the connecting shaft (64). The cylinders (63) mesh between the toothed blocks (62).

2. The construction dust control spray device according to claim 1, characterized in that, An adjusting block (511) is fixedly connected to the upper end of the annular plate (54). There are three adjusting blocks (511) with different heights, and the two ends of the adjusting block (511) are set as inclined surfaces.

3. The construction dust control spray device according to claim 1, characterized in that, The rotating plate (55) has a groove A (512) in the middle. A threaded rod (513) is rotatably connected inside the groove A (512). A moving block (514) is threadedly connected to the outer wall of the threaded rod (513). The upper end of the moving block (514) is fixedly connected to the sliding shaft (56). One end of the threaded rod (513) passes through the rotating plate (55) and is fixedly connected to a knob (515).

4. The construction dust control spray device according to claim 1, characterized in that, The bottom of the air duct (4) is hinged with a support rod, and the bottom of the support rod is provided with rollers.

5. A construction dust control spray device according to claim 1, characterized in that, The upper end of the mounting plate (51) is provided with a through groove, and the inside of the through groove is provided with a breathable mesh (8). The bottom of the mounting plate (51) is provided with a detachable drying box (9). The upper end of the chassis (1) is provided with a cylinder (10), and the output end of the cylinder (10) is fixedly connected to the bottom of the mounting plate (51).

6. A construction dust control spray device according to claim 1, characterized in that, The upper end of the mounting plate (51) is provided with a sliding groove B (66), and the bottom of the movable frame (61) is fixedly connected with a sliding rod (67), which is slidably connected inside the sliding groove B (66).

7. A construction dust control spray device according to claim 6, characterized in that, The mixing component (7) includes a connecting rod (71), which is fixedly connected to the bottom of a slide rod (67). A toothed plate (72) is fixedly connected to the bottom of the connecting rod (71), and a squeezing rod (73) is fixedly connected to both ends of the toothed plate (72). A stirring shaft (74) is rotatably connected inside the water tank (2). A stirring rod (75) is fixedly connected to the outer wall of the stirring shaft (74). A gear (76) is fixedly connected to the top of the stirring shaft (74). A rubber reservoir (77) is fixedly connected to the inner wall of the housing (1). A liquid outlet pipe (78) is fixedly connected to the outer wall of the rubber reservoir (77). A liquid storage tank (710) is fixedly connected to the upper end of the housing (1). A filling port (711) is opened at the upper end of the liquid storage tank (710). A connecting pipe is fixedly connected to the bottom of the liquid storage tank (710), and the bottom of the connecting pipe is fixedly connected to the rubber reservoir (77).

8. A construction dust control spray device according to claim 7, characterized in that, The liquid outlet pipe (78) is equipped with a one-way valve (79), the toothed plate (72) meshes with the gear (76), the upper end of the housing (1) and the bottom of the slide groove B (66) are provided with a movable groove (713), the connecting rod (71) moves through the movable groove (713), and the upper end of the connecting rod (71) is fixedly connected to the bottom of the slide rod (67).

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