A dust suppression device for construction projects

Abstract

This utility model relates to the field of construction dust suppression and discloses a dust suppression device for building engineering, including a circulating water pump and dust suppression components. The dust suppression components can be connected end to end. A spraying mechanism is provided at the top of the dust suppression components for spraying water mist to remove solid particles in the air. The filter component includes a water filter end and a water purification end. The water filter end is connected to the end of the water inlet tank through a hose and is used to filter solid particles in the water. The water replenishment component is used to replenish the water lost through evaporation. The automatic switching valve includes two water inlets and one water outlet. The water outlet is connected to the water inlet of the circulating water pump through a hose, and the water inlets are connected to the water purification end and the water replenishment component through hoses respectively. This utility model has the effect of suppressing dust dispersion during indoor construction and recycling the water sprayed during dust suppression.

Description

Technical Field

[0001] This utility model relates to the field of construction dust suppression technology, and in particular to a dust suppression device for building engineering. Background Technology

[0002] When carrying out construction in indoor environments such as shopping malls, it is often necessary to install dust suppression equipment around the construction area to prevent passersby from inhaling excessive amounts of construction dust.

[0003] Chinese utility model patent CN222804921U discloses a construction site dust suppression and environmental protection device. It includes a support structure installed on both sides of the road. A high-pressure water jet is sprayed from the dust suppression mechanism. The high-speed flow of water draws air and dust from the surrounding area into a recycling mechanism. The recycling mechanism then recovers the water and removes the dust. Finally, the recycled water is returned to the dust suppression mechanism for reuse, thus improving the device's practicality. The device includes a support structure, a dust suppression mechanism, and a recycling mechanism, both mounted on the support structure. The support structure supports the dust suppression mechanism and the recycling mechanism. The dust suppression mechanism sprays water to suppress dust, and the recycling mechanism recovers the water.

[0004] However, its shortcomings are as follows: the equipment has significant limitations in indoor construction scenarios. This is mainly reflected in the fact that the dust-suppressing water mist it sprays will inevitably wet the skin of operators within the working radius. Furthermore, when indoor and outdoor air exchange causes strong airflow disturbances, the water mist will spread beyond the preset construction boundary, thus affecting nearby pedestrians. At the same time, due to the large structural form of the equipment itself, it is difficult to achieve effective deployment and operation in space-constrained indoor environments, which limits its applicability in enclosed spaces. Utility Model Content

[0005] The purpose of this invention is to provide a dust suppression device for construction projects, which can suppress dust dispersion during indoor construction and simultaneously recycle the water sprayed for dust suppression.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a dust suppression device for construction engineering, comprising a circulating water pump, and further comprising:

[0007] Dust suppression components can be connected end to end. The top of the dust suppression component is equipped with a spraying mechanism to spray water mist to remove solid particles in the air.

[0008] The filter assembly includes a water filter end and a water purification end. The water filter end is connected to the end of the water inlet tank via a hose and is used to filter solid particles in the water.

[0009] Water replenishment components are used to replenish water lost through evaporation.

[0010] The automatic switching valve includes two inlet ends and one outlet end. The outlet end is connected to the inlet of the circulating water pump via a hose, and the inlet ends are connected to the purified water end and the water replenishment component via hoses.

[0011] By adopting the above technical solution, the dust suppression component first connects to the decoration area, and the spray mechanism sprays a water curtain to separate the inside and outside of the area, preventing dust generated during decoration from being blown out. The filter component filters and recovers solid dust particles in the water to prevent the spray mechanism from clogging. The water circulates in the dust suppression component, filter component, and circulating water pump, reducing water waste and saving some costs. The water replenishment component replenishes water when the evaporation of circulating water is too large and the water circulation cannot be completed smoothly, and an automatic switching valve determines the water replenishment time.

[0012] The present invention is further configured such that: the dust suppression component includes a counterweight base, a retractable lifting rod is vertically connected to the counterweight base, a spraying mechanism is horizontally fixed at the top of the lifting rod, and a water inlet groove is provided on the counterweight base to cooperate with the spraying mechanism.

[0013] By adopting the above technical solution, the counterweight base prevents the dust suppression components from tipping over, the lifting rod is telescopic to adapt to different indoor environmental heights, and water is sprayed from below the spray mechanism fixed at the top of the lifting rod to form a water curtain, which falls vertically into the water trough below for recycling.

[0014] The present invention is further configured such that: the spraying mechanism includes a first water inlet pipe and a second water inlet pipe arranged in parallel, the two ends of the first water inlet pipe are respectively connected to a threaded hose and a screw-type hose that can fit into each other, the two ends of the second water inlet pipe are closed, the first water inlet pipe and the second water inlet pipe are connected by a connecting pipe, a spraying valve is provided in the connecting pipe to control the on and off, a water curtain nozzle is provided below the second water inlet pipe, and the water curtain nozzle is connected to the second water inlet pipe.

[0015] By adopting the above technical solution, water enters from the first end of the first water inlet pipe and enters the second water inlet pipe through the connecting pipe. Under the action of water pressure, it is sprayed out from the water curtain nozzle to form a water curtain. When a certain section of the spray mechanism does not need to output water, the spray valve can be closed to prevent water from that section from entering the second water inlet pipe. Since the spray mechanism needs to be spliced ​​into a surrounding construction area, threaded hoses and screw-type hoses are fixed at both ends of the first water inlet pipe. When splicing dust suppression components of the same specification, only the ends of the hoses need to be connected, and the flexibility of the hoses is used to make the overall structure curved.

[0016] The present invention is further configured such that: the water inlet trough is parallel to the first water inlet pipe, the bottom of the cross-section of the water inlet trough is inclined at an angle of 30-45 degrees, and the two ends of the water inlet trough are respectively connected to a threaded hose and a threaded hose that can fit into each other.

[0017] By adopting the above technical solution, in order to ensure that the water sprayed from the water curtain nozzles can enter the water inlet channel vertically downwards, making the water inlet channel parallel to the first water inlet pipe, the bottom of the water inlet channel is inclined so that when the water flows, the angle of inclination guides the water to impact the side wall of the water inlet channel, quickly reducing the kinetic energy of the water flow. When the inclination angle is 30-45 degrees, the water flow force reduction speed is the fastest and the splashing water droplets are the fewest. In order to match the curved splicing of the dust suppression components, the two ends of the water inlet channel are spliced ​​with screw-in hoses and threaded hoses, so that the water inlet channel forms a complete loop on the ground.

[0018] The present invention is further configured as follows: the water filtration end includes a water filtration box, a water inlet is provided on one side of the water filtration box, and a detachable intercepting plate is provided vertically inside the water filtration box along the water inlet direction; the water purification end includes a water purification box, the water filtration box and the water purification box are separated by a detachable water purification filter screen, and the water purification box is connected to the automatic switching valve through a hose.

[0019] By adopting the above technical solution, the filter assembly is used to filter solid dust particles in the recycled water. Because the water inlet pipe has a certain height, the recycled water level will not overflow unless it is higher than the top opening of the inlet pipe. An intercepting plate is installed vertically to the water flow inside the filter box. During the vertical impact of the water flow, solid particles, with a density greater than water, are deposited at the bottom of the water layer under gravity and blocked by the intercepting plate. The intercepting plate is removable for easy cleaning of accumulated dust. When the recycled water passes through the filter box and the purified water box, the remaining particles are filtered out by the purified water filter screen. Due to the limited area of ​​the purified water filter screen, an intercepting plate is needed for initial interception to prevent excessive particle accumulation and clogging of the mesh. The purified water filter screen still needs to be disassembled and cleaned regularly to prevent blockage. The water entering the purified water box has no solid particle residue and can be directly pumped away by the circulating water pump for recirculation.

[0020] A further feature of this invention is that the water replenishment component includes a foldable water tank, with a water inlet and a water outlet on the top of the water tank. A water inlet cover is detachably connected to the water inlet, and the water outlet is connected to an automatic switching valve via a hose.

[0021] By adopting the above technical solution, the water tank can be folded for easy carrying. Water is poured into the tank through the water inlet on the top. To prevent dust from entering, a water inlet cap is connected to the water inlet. When the water evaporation is too large, the circulating water pump stops drawing water from the purified water box and starts drawing water from the water tank through the water outlet until the liquid level in the purified water box reaches the standard.

[0022] A further feature of this invention is that the automatic switching valve includes a water flow sensor installed on the side wall of the water purifier box, and an electric directional valve is installed inside the automatic switching valve.

[0023] By adopting the above technical solution, the water level is sensed by the water flow sensor in the water purification box. When the water level is too low, it indicates that the evaporation rate is high. At this time, the electric directional valve turns to block the connection between the water purification box and the circulating water pump. The circulating water pump draws water from the water tank. When the water level in the water purification box returns to above the water flow sensor, the electric directional valve returns to its original position.

[0024] A further feature of this invention is that a color-changing light strip is arranged parallel to the bottom of the second water inlet pipe, with the light-emitting direction of the light strip being vertically downward.

[0025] By adopting the above technical solution, the light strip emits light vertically downwards, illuminating the water curtain sprayed from the water curtain nozzle. Due to the principle of liquid reflection, the light follows the water curtain to form a luminous water curtain. This not only makes the specific location of the water curtain more obvious and avoids pedestrians accidentally touching it, but also makes the construction site more aesthetically pleasing and reduces the unpleasant appearance caused by the construction.

[0026] The beneficial effects of this utility model are:

[0027] 1. By coordinating the circulating water pump with the internal pipelines of the dust suppression components, a continuous water curtain is formed by water jets. The water curtain can effectively adsorb and capture suspended dust particles in the air at the edge of the construction area, isolate the flow of dust in the space inside and outside the construction area, and achieve the purpose of active dust suppression.

[0028] 2. The filtration components perform solid-liquid separation on the collected return liquid after spraying, efficiently filtering out the solid particles contained therein. The purified water can be returned to the circulating water pump to form a recirculating water system, which greatly reduces dependence on and consumption of external water sources, significantly improves water resource utilization efficiency, and effectively saves operating costs. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall structure of a dust suppression device for building construction according to the present invention;

[0031] Figure 2 This is a side sectional view of the dust suppression component of this utility model;

[0032] Figure 3 This is a top sectional view of the spraying mechanism of this utility model;

[0033] Figure 4 This is a partial structural diagram of the present utility model.

[0034] In the diagram, 1. Dust suppression component; 11. Counterweight base; 12. Lifting rod; 13. Water inlet trough; 2. Spraying mechanism; 21. First water inlet pipe; 22. Second water inlet pipe; 23. Connecting pipe; 24. Spray valve; 25. Water curtain nozzle; 26. Color-changing light strip; 3. Filter component; 31. Water filter end; 311. Water filter box; 312. Water filter box inlet; 313. Interception plate; 32. Clean water end; 321. Clean water box; 33. Clean water filter screen; 4. Hose; 41. Threaded hose; 42. Threaded hose; 5. Water replenishment component; 51. Water tank; 511. Water inlet; 512. Water outlet; 513. Water inlet cover; 6. Circulating water pump; 7. Automatic switching valve; 71. Water inlet end; 711. Water flow sensor; 72. Water outlet end; 712. Electric diverting valve. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0036] This utility model embodiment specifically provides a dust suppression device for construction engineering, including a circulating water pump 6, and further comprising:

[0037] Dust suppression component 1, which can be connected end to end, and a spraying mechanism 2 is provided at the top of dust suppression component 1 for spraying water mist to remove solid particles in the air.

[0038] The filter assembly 3 includes a water filter end 31 and a water purification end 32. The water filter end 31 is connected to the tail end of the water inlet tank 13 via a hose 4 and is used to filter solid particles in the water.

[0039] Water replenishment component 5 is used to replenish water lost through evaporation;

[0040] The automatic switching valve 7 includes two inlet ends 71 ​​and one outlet end 72. The outlet end 72 is connected to the inlet of the circulating water pump 6 through a hose 4. The inlet ends 71 ​​are connected to the clean water end 32 and the water replenishment component 5 through hoses 4 respectively.

[0041] This utility model is used for dust suppression during indoor decoration in shopping malls and other environments. Since the ground in such environments is mostly a large flat area, there is no need to consider the problem caused by the tilt of the water channel. The dust suppression component 1 is the basic unit of this utility model. It can delineate the decoration area by connecting the first and second parts, and the spray mechanism 2 uses water curtain to separate the inside and outside of the area to prevent dust generated during decoration from being blown out. Since the working principle of the water curtain is that the water flow carries away solid particles in the air, the water flowing into the water channel will carry some undissolved particles. These particles are filtered by the filter component 3 to prevent the spray mechanism 2 from being blocked. The water circulates in the dust suppression component, filter component, and circulating water pump, reducing water waste and saving some costs. Since some water will evaporate during the circulation process, in order to prevent the evaporation from being too large and unable to complete the circulation smoothly, a water replenishment component 5 is added to replenish water, and an automatic switching valve 7 is used to determine the timing of water replenishment.

[0042] The dust suppression component 1 includes a counterweight base 11, on which a telescopic lifting rod 12 is vertically connected. A spraying mechanism 2 is horizontally fixed at the top of the lifting rod 12. A water channel 13 that cooperates with the spraying mechanism 2 is provided on the counterweight base 11.

[0043] The counterweight base 11 can prevent the dust suppression component 1 from tipping over. The lifting rod 12 is telescopic to adapt to different indoor environmental heights. Water is sprayed from below the spray mechanism 2 fixed to the top of the lifting rod to form a water curtain and falls vertically into the water channel 13 below for circulation.

[0044] The spraying mechanism 2 includes a first water inlet pipe 21 and a second water inlet pipe 22 arranged in parallel. The first water inlet pipe 21 is connected to a threaded hose 41 and a threaded hose 42 that can fit into each other at both ends. The second water inlet pipe 22 is closed at both ends. The first water inlet pipe 21 and the second water inlet pipe 22 are connected by a connecting pipe 23. A spray valve 24 is installed in the connecting pipe 23 to control the on and off. A water curtain nozzle 25 is installed below the second water inlet pipe 22 and is connected to the second water inlet pipe 22.

[0045] The first water inlet pipe 21 and the second water inlet pipe 22 are arranged in parallel. Water flows in from the first end of the first water inlet pipe 21 and enters the second water inlet pipe 22 through the connecting pipe 23. Under the action of water pressure, it is sprayed out from the water curtain nozzle 25. The port structure of the water curtain nozzle 25 can make the sprayed water form a uniform thin water curtain. The design scheme of the nozzle can refer to the existing technical solutions. If a certain section of the spray mechanism does not need to output water, the spray valve 24 in the connecting pipe 23 can be closed to prevent water from entering the second water inlet pipe 22. Since the spray mechanism needs to be spliced ​​into a surrounding construction area, threaded hose 41 and screw-type hose 42 are fixed at both ends of the first water inlet pipe 21 respectively. When splicing dust suppression components of the same specification, only the ends of the hoses need to be connected, and the flexibility of the hoses is used to make the overall structure arc.

[0046] Furthermore, the water inlet trough 13 is parallel to the first water inlet pipe 21. The bottom of the cross-section of the water inlet trough 13 is inclined at an angle of 30-45 degrees. The two ends of the water inlet trough 13 are respectively connected to a threaded hose 42 and a threaded hose 41 that can fit into each other.

[0047] When the water inlet trough 13 is parallel to the first water inlet pipe 21, it can be ensured that the water sprayed from the water curtain nozzle 25 can enter the water inlet trough 13 vertically downwards. In order to prevent the water from falling and splashing, reducing the amount of water to be recovered, the bottom of the water inlet trough 13 is tilted. When the water flows, the tilt angle will cause the water to turn into a horizontal impact on the side wall of the water inlet trough, which will quickly reduce the kinetic energy of the water flow. When the tilt angle is 30-45 degrees, the water flow impact force is reduced the fastest and the splashed water droplets are the fewest. In order to match the bending splicing of the dust suppression component, the two ends of the water inlet trough 13 also need to be spliced ​​with threaded hoses 42 and threaded hoses 41 to form a complete pipeline parallel to the ground.

[0048] Furthermore, the water filtration end 31 includes a water filter box 311, with a water inlet 312 on one side of the water filter box 311. A detachable interceptor plate 313 is vertically arranged inside the water filter box 311 along the water inlet direction. The water purification end 32 includes a water purification box 321. The water filter box 311 and the water purification box 321 are separated by a detachable water purification filter screen 33. The water purification box 321 is connected to the automatic switching valve 7 via a hose 4.

[0049] The filter assembly 3 is used to filter solid dust particles in the recycled water. The recycled water flows into the filter box 311 from the tail end of the water inlet trough. Considering the flatness of the ground, since the water inlet trough pipeline has a certain height, the recycled water level will not overflow if it is not higher than the top opening of the water inlet trough. An interceptor plate 313 is set in the filter box 311 along the vertical direction of the water flow. During the vertical impact of the water flow, the density of solid particles is greater than that of water. Under the action of gravity, they are deposited in the lower part of the water layer and blocked by the interceptor plate 313. The height of the interceptor plate 313 is lower than the highest point of the top opening of the water inlet trough to prevent water from overflowing. The interceptor plate 313 can be pulled out from the slot of the box body to facilitate the cleaning of accumulated dust. When the recycled water passes through the filter box 311 and the purified water box 321, the remaining particles are filtered out by the purified water filter screen 33. Since the area of ​​the purified water filter screen 33 is limited, an interceptor plate is set up first to prevent particles from accumulating too much on the filter screen and clogging the mesh. The purified water filter screen 33 still needs to be pulled out and cleaned regularly to prevent clogging. The water entering the water purification box 321 has no solid particle residue and can be directly pumped away by the circulating water pump 6 for recirculation.

[0050] The water replenishment component 5 includes a foldable water tank 51. The top of the water tank 51 has a water inlet 511 and a water outlet 512. A water inlet cover 513 is detachably connected to the water inlet 511. The water outlet 512 is connected to the automatic switching valve 7 via a hose 4.

[0051] The water tank 51 is designed to be foldable for easy carrying. Water can be poured into the water tank 51 through the water inlet 511 on the top of the water tank 51. To prevent dust from entering, a water inlet cap 513 is threaded onto the water inlet 511. When the water evaporation is too large, the circulating water pump 6 stops pumping water from the water purification box 321 and starts pumping water from the water tank 51 through the water outlet 512 until the liquid level in the water purification box 321 reaches the standard.

[0052] Furthermore, the automatic switching valve 7 includes a water flow sensor 711 installed on the side wall of the water purification box 321, and an electric directional valve 712 is installed inside the automatic switching valve 7.

[0053] The electric diverting valve 712 is initially positioned to block the connection between the water tank 51 and the circulating water pump 6. When the water level in the purified water box 321 is lower than the water flow sensor 711, the electric diverting valve 712 turns to block the connection between the purified water box 321 and the circulating water pump 6. At this time, the circulating water pump 6 draws water from the water tank 51. When the water level in the purified water box 321 returns to a position higher than the water flow sensor 711, the electric diverting valve 712 returns to its original position. Alternatively, the electric diverting valve 712 can be extended outside the pipe and its opening and closing can be manually controlled by a knob.

[0054] In one embodiment, a color-changing light strip 26 is arranged parallel to the bottom of the second water pipe 22, and the light-emitting direction of the color-changing light strip 26 is vertically downward.

[0055] The color-changing light strip 26 emits light vertically downwards, illuminating the water curtain sprayed from the water curtain nozzle 25. Due to the principle of liquid reflection, it follows the water curtain to form a conspicuous luminous water curtain. This not only makes the specific location of the water curtain more obvious and avoids pedestrians accidentally touching it, but also makes the construction site more aesthetically pleasing and reduces the unpleasant appearance caused by construction.

[0056] It should be noted that all circuits in this invention that may come into contact with water have been waterproofed to prevent the possibility of electric shock or leakage.

[0057] Working principle:

[0058] S1. During assembly, connect the dust suppression components sequentially along the edge line outside the construction area. Thread the first water inlet pipe and water inlet trough of each dust suppression component group. Since the connecting parts are flexible hoses, two dust suppression components can be placed at a certain angle. Multiple dust suppression components together form a baffle around the construction area. Connect the first water inlet pipe of the dust suppression component at the beginning to the outlet of the circulating water pump, and connect the water inlet trough to the inlet of the filter box. Connect the clean water box to one inlet of the automatic switching valve through a flexible hose. Then connect the water tank outlet to the other inlet of the automatic switching valve through a flexible hose. Connect the outlet of the automatic switching valve to the inlet of the circulating water pump. Tighten the first water inlet pipe and water inlet trough of the dust suppression component at the end with a cap with a matching thread to prevent leakage. During installation, waterproof gaskets can be added to all hose connections that require threaded connections to prevent leakage.

[0059] S2. During operation, the circulating water pump is started, and the water flows along the first water inlet pipe. In each dust suppression component, it enters the second water inlet pipe through the connecting pipe and is sprayed vertically through the water curtain nozzles to form a water curtain. Turning on the color-changing light strip illuminates the water curtain to more clearly indicate its position. The water curtain nozzles on individual dust suppression components can be closed through the spray valve. The water flows vertically into the water inlet tank below and flows along the pipeline into the filter component. After filtering out the adhering solid dust particles, it flows into the inlet of the circulating water pump through the pipeline. When the evaporation of circulating water is too large to maintain circulation, the automatic switching valve switches to allow the circulating water pump to draw water from the water tank to replenish it.

[0060] The above describes the basic principles, main features, and advantages of this utility model. The standard parts used in this utility model can all be purchased from the market, and the irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, which will not be described in detail here.

[0061] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dust suppression device for construction engineering, comprising a circulating water pump (6), characterized in that: Also includes Dust suppression component (1), the dust suppression component (1) can be connected end to end, and the top of the dust suppression component (1) is provided with a spraying mechanism (2) for spraying water mist to remove solid particles in the air; The filter assembly (3) includes a water filter end (31) and a water purification end (32). The water filter end (31) is connected to the tail end of the water inlet tank (13) via a hose (4) for filtering solid particles in the water. Water replenishment component (5) is used to replenish water lost through evaporation; The automatic switching valve (7) includes two inlet ends (71) and one outlet end (72). The outlet end (72) is connected to the inlet of the circulating water pump (6) through a hose (4). The inlet ends (71) are connected to the purified water end (32) and the water replenishment component (5) through hoses (4).

2. The dust suppression device for construction engineering according to claim 1, characterized in that: The dust suppression component (1) includes a counterweight base (11), on which a length extendable lifting rod (12) is vertically connected. A spraying mechanism (2) is horizontally fixed at the top of the lifting rod (12), and a water channel (13) that cooperates with the spraying mechanism (2) is provided on the counterweight base (11).

3. A dust suppression device for construction projects according to claim 2, characterized in that: The spraying mechanism (2) includes a first water inlet pipe (21) and a second water inlet pipe (22) arranged in parallel. The first water inlet pipe (21) is connected to two threaded hoses (41) and threaded hoses (42) that can fit into each other. The second water inlet pipe (22) is closed at both ends. The first water inlet pipe (21) and the second water inlet pipe (22) are connected by a connecting pipe (23). A spray valve (24) is provided in the connecting pipe (23) to control the on and off. A water curtain nozzle (25) is provided below the second water inlet pipe (22). The water curtain nozzle (25) is connected to the second water inlet pipe (22).

4. A dust suppression device for construction engineering according to claim 3, characterized in that: The water inlet trough (13) is parallel to the first water inlet pipe (21). The bottom of the cross-section of the water inlet trough (13) is inclined at an angle of 30-45 degrees. The two ends of the water inlet trough (13) are respectively connected to a threaded hose (42) and a threaded hose (41) that can fit into each other.

5. A dust suppression device for construction engineering according to claim 1, characterized in that: The water filter end (31) includes a water filter box (311), and a water filter box inlet (312) is provided on one side of the water filter box (311). A detachable interceptor plate (313) is vertically arranged inside the water filter box (311) along the water inlet direction. The water purification end (32) includes a water purification box (321). The water filter box (311) and the water purification box (321) are separated by a detachable water purification filter screen (33). The water purification box (321) is connected to the automatic switching valve (7) through a hose (4).

6. A dust suppression device for construction engineering according to claim 1, characterized in that: The water replenishment component (5) includes a foldable water tank (51), the top of which is provided with a water inlet (511) and a water outlet (512). A water inlet cover (513) is detachably connected to the water inlet (511), and the water outlet (512) is connected to the automatic switching valve (7) via a hose (4).

7. A dust suppression device for construction engineering according to claim 1, characterized in that: The automatic switching valve (7) includes a water flow sensor (711) installed on the side wall of the water purification box (321), and an electric diverting valve (712) is installed inside the automatic switching valve (7).

8. A dust suppression device for construction engineering according to claim 3, characterized in that: A color-changing light strip (26) is arranged parallel below the second water pipe (22), and the light-emitting direction of the color-changing light strip (26) is vertically downward.

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