Building construction dust falling device

Abstract

The utility model belongs to the house building construction technical field especially relates to a house building construction construction dust falling device, including base, the cross section of base is triangle structure, the support rod is installed on base coaxially threaded, the support rod is inserted with the slide bar in sliding, the top of slide bar is fixed with the fixed base coaxially, through setting up the support mechanism of triangle base and support rod's coaxial threaded connection, triangle slide sleeve cooperation swivel rod no.

Description

Technical Field

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

[0002] During building construction, operations such as earthwork excavation, concrete mixing, steel reinforcement processing, and wall construction easily generate a large amount of dust. This dust not only pollutes the surrounding atmosphere but is also inhaled by construction workers, harming their health. Furthermore, dust accumulation can affect the normal operation of construction equipment. Therefore, dust suppression devices have become an important supporting equipment in building construction. Their main function is to reduce the concentration of dust in the air through methods such as water mist adsorption, ensuring that the construction environment meets standards and personnel safety. Currently, although various dust suppression devices for building construction exist on the market, they still cannot fully meet the needs for high efficiency, convenience, and adaptability in actual construction site applications.

[0003] Existing dust suppression devices for building construction face several pressing problems: Firstly, most devices employ an integrated, fixed structure, resulting in large, heavy components. Furthermore, some components require multi-point bolt connections, necessitating disassembly of multiple parts and multiple personnel to move the device to different work areas, leading to time and labor costs and hindering timely adjustments to the device's position according to construction progress. Secondly, the height adjustment function of these devices is generally insufficient, either completely non-adjustable or requiring additional tools like wrenches to disassemble connecting parts for adjustment. This makes them unsuitable for quickly and accurately adapting to dusty conditions at varying heights, such as low-rise wall construction and high-rise floor slab pouring, resulting in some dust particles remaining uncaptured and significantly reducing dust suppression effectiveness. Therefore, we propose a new dust suppression device for building construction. Utility Model Content

[0004] The purpose of this utility model is to provide a dust suppression device for building construction to solve the problems mentioned in the background art.

[0005] In view of this, the present invention provides a dust suppression device for building construction, comprising:

[0006] The base has a triangular cross-section. A support rod is coaxially threaded onto the base. A slide rod is slidably inserted into the support rod. A fixing seat is coaxially fixed to the top of the slide rod. A water tank is fixedly installed on the upper surface of the fixing seat.

[0007] A dust suppression mechanism is installed on a water tank and is used to suppress dust at the building construction site.

[0008] A support mechanism is disposed between the base and the support rod and is used to improve the stability of the base.

[0009] Preferably, the dust suppression mechanism includes:

[0010] Two clamps are symmetrically fixed to the outer wall of the water tank. A diversion pipe is inserted between the two clamps. Multiple atomizing nozzles with outward-facing nozzles are fixedly installed on the outer circumference of the diversion pipe. A water pump is fixedly installed in the inner cavity of the water tank, and the water outlet of the water pump is connected to the diversion pipe through a connecting pipe.

[0011] Preferably, the nozzle portion of the atomizing nozzle is angled upwards.

[0012] Preferably, the upper surface of the water tank is provided with a water inlet, the lower surface of the water tank is provided with a drain outlet, and a drain valve is fixedly installed on the drain outlet.

[0013] Preferably, the support mechanism includes:

[0014] The sliding sleeve has a triangular structure and is slidably mounted on the support rod, coaxially with the support rod. A rotating rod is rotatably mounted on each of the three edges of the sliding sleeve. A cross-shaped groove is formed on the rotating rod, and a fixed support foot is slidably mounted within the cross-shaped groove. A rotating rod is rotatably mounted on the lower part of the outer wall of the rotating rod, and the other end of the rotating rod is rotatably engaged with the corresponding side of the base. A threaded groove is formed on the sliding sleeve, and a threaded knob is threadedly mounted within the threaded groove. The inner end of the threaded knob is in contact with the outer wall of the support rod.

[0015] Preferably, the side wall of the fixed support foot is fixed with a threaded rod, and the other end of the threaded rod passes through the cross-shaped groove and extends to the outside. A fastening knob is threadedly connected to the threaded rod.

[0016] Preferably, a plug is interference-fitted to the bottom end of the support rod, and a spring is provided between the bottom end of the slide rod and the plug.

[0017] Preferably, a second fastening knob is threaded onto the upper part of the support rod, and the inner end of the second fastening knob is tightly fitted to the outer wall of the slide rod.

[0018] The beneficial effects of this utility model are:

[0019] 1. This construction dust suppression device adopts a dust suppression mechanism design consisting of a water tank, a diversion pipe fixed by clamps, an upward-sloping atomizing nozzle, and a water pump. Combined with an axial telescopic adjustment structure for the support rod and sliding rod, it solves the technical pain points of traditional dust suppression devices, such as narrow coverage, dead zones, and water mist easily washing away the ground, leading to muddy accumulation. Furthermore, it can flexibly adjust the height of the dust suppression mechanism according to different dust levels in construction, such as low-rise walls and high-rise floors. Simultaneously, the upward-sloping atomizing nozzle can form a ring-shaped water mist coverage area, extending the contact time between the water mist and air, improving the adsorption efficiency of dust in mid-to-high altitude areas, and adapting to diverse construction dust control needs.

[0020] 2. This dust suppression device for building construction uses a support mechanism consisting of a triangular sliding sleeve, a rotating rod (one), a rotating rod (two), and a telescopic fixed support foot between the base and the support rod. Combined with a spring-buffered structure between the end cap at the bottom of the support rod and the sliding rod, this solution addresses the problems of traditional devices easily tipping over on uneven construction surfaces and exhibiting poor support stability. Furthermore, the spring-buffered structure absorbs the impact force during adjustment of the sliding rod, preventing damage to components caused by hard collisions between the sliding rod and the end cap. The support mechanism allows for flexible adjustment of the support height and radius via the sliding sleeve and telescopic fixed support foot, adapting to different ground conditions. Adjustment can be completed without additional tools, making operation convenient and effectively extending the device's service life. Attached Figure Description

[0021] Figure 1 This is one of the overall structural schematic diagrams of this utility model (with the support legs retracted).

[0022] Figure 2 This is the second schematic diagram of the overall structure of this utility model (with the support legs open).

[0023] Figure 3 This is a schematic diagram of the dust collection mechanism in this utility model;

[0024] Figure 4 This is a partial structural diagram of the support mechanism in this utility model;

[0025] Figure 5 This is a schematic diagram of the cross-shaped groove in this utility model;

[0026] Figure 6 This is a schematic diagram of the threaded knob in this utility model;

[0027] Figure 7 This is a schematic diagram of the spring structure in this utility model.

[0028] The markings in the diagram are as follows:

[0029] 1. Base; 2. Support rod; 3. Slide rod; 4. Fixed seat; 5. Water tank; 6. Clamp; 7. Diverter pipe; 8. Atomizing nozzle; 9. Water pump; 10. Sliding sleeve; 11. Rotating rod one; 12. Cross-shaped groove; 13. Fixed support foot; 14. Rotating rod two; 15. Threaded rod; 16. Fastening knob one; 17. Threaded groove; 18. Threaded knob; 19. Plug; 20. Spring; 21. Fastening knob two. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 - Figure 7 This application will be described in further detail.

[0031] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., 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.

[0032] Example 1:

[0033] This embodiment provides a dust suppression device for building construction, including:

[0034] The base 1 has a triangular cross-section. A support rod 2 is coaxially threaded on the base 1. A slide rod 3 is slidably inserted into the support rod 2. A fixed seat 4 is coaxially fixed to the top of the slide rod 3. A water tank 5 is fixedly installed on the upper surface of the fixed seat 4.

[0035] The dust suppression mechanism is installed on the water tank 5 and is used to suppress dust at the building construction site.

[0036] A support mechanism is provided between the base 1 and the support rod 2, and is used to improve the stability of the base 1.

[0037] In this embodiment, the dust suppression mechanism includes:

[0038] Two clamps 6 are symmetrically fixed to the outer wall of the water tank 5. A diversion pipe 7 is inserted between the two clamps 6. Multiple atomizing nozzles 8 with outward-facing nozzles are fixedly installed on the outer circumference of the diversion pipe 7. A water pump 9 is fixedly installed in the inner cavity of the water tank 5, and the water outlet of the water pump 9 is connected to the diversion pipe 7 through a connecting pipe.

[0039] In this embodiment, the support mechanism includes:

[0040] The sliding sleeve 10 has a triangular structure and is slidably mounted on the support rod 2 and is coaxial with the support rod 2. Rotary rod 11 is rotatably mounted on each of the three edges of the sliding sleeve 10. A cross-shaped groove 12 is opened on the rotary rod 11, and a fixed support foot 13 is slidably mounted in the cross-shaped groove 12. A rotary rod 2 14 is rotatably mounted on the outer wall of the rotary rod 11 near the lower part. The other end of the rotary rod 2 14 is rotatably engaged with the side of the base 1. A threaded groove 17 is opened on the sliding sleeve 10, and a threaded knob 18 is threadedly mounted in the threaded groove 17. The inner end of the threaded knob 18 is in contact with the outer wall of the support rod 2.

[0041] In this embodiment, a threaded rod 15 is fixed to the side wall of the fixed support leg 13, and the other end of the threaded rod 15 passes through the cross-shaped groove 12 and extends to the outside. A fastening knob 16 is threadedly connected to the threaded rod 15.

[0042] The base 1 adopts a triangular cross-section structure, which can initially improve the overall placement stability of the device by utilizing the stability of the triangle. The coaxial threaded connection between the base 1 and the support rod 2 not only facilitates the quick installation and disassembly of the support rod 2, but also allows the coaxiality between the support rod 2 and the base 1 to be adjusted by rotating the support rod 2 during installation, ensuring the verticality of the support rod 2, slide rod 3, fixed seat 4, water tank 5 and dust suppression mechanism. The slide rod 3, which is slidably inserted into the support rod 2, can extend and retract along the axial direction of the support rod 2, thereby adjusting the height of the fixed seat 4 and the water tank 5, thus adapting to different dust-generating areas in building construction (such as the difference in dust height between low-rise wall construction and high-rise floor slab construction). The fixed seat 4, as a transition component connecting the slide rod 3 and the water tank 5, has a coaxial fixing design with the slide rod 3 to ensure that the water tank 5 is evenly stressed after installation, preventing the device from tilting due to the eccentricity of the water tank 5.

[0043] In the dust suppression mechanism, when two clamps 6 are symmetrically fixed on the outer wall of the water tank 5, it is necessary to ensure that the axes of the two are collinear, and the inner wall of the clamp 6 must be tightly fitted with the outer wall of the diversion pipe 7 to prevent the diversion pipe 7 from falling off due to construction vibration after insertion. Multiple atomizing nozzles 8 installed in the circumferential direction of the diversion pipe 7 must be evenly distributed along the axis of the diversion pipe 7.

[0044] It is worth noting that this embodiment only shows that multiple atomizing nozzles 8 are provided on one side of the water tank 5. In actual use, a diversion pipe 7 and multiple atomizing nozzles 8 can be provided on both sides of the water tank 5, or a diversion pipe 7 with a ring structure can be provided on the water tank 5, and atomizing nozzles 8 with the nozzles facing outward can be installed on the diversion pipe 7. The nozzles of each atomizing nozzle 8 can form a 360° dust suppression coverage range, effectively reducing dust suppression dead angles.

[0045] The water pump 9 inside the water tank 5 needs to be fixed at the bottom of the water tank 5 near the connecting pipe to ensure that the water pump 9 can fully draw water from the water tank 5 when it is working. The connecting pipe must be made of high pressure resistant material to prevent the connecting pipe from breaking when the water pump 9 pressurizes and delivers water.

[0046] In the support mechanism, the triangular structure of the sliding sleeve 10 matches the triangular structure of the base 1. It is slidably mounted on the support rod 2 and remains coaxial. The support height of the support mechanism can be adjusted by sliding the sliding sleeve 10 up and down to accommodate different ground height differences. The rotating rod 11 at the three edges of the sliding sleeve 10 needs to be rotatably mounted via a pin to ensure that the rotating rod 11 can rotate around the pin, thereby adjusting the angle between the rotating rod 11 and the support rod 2 to accommodate different support spans. The cross-shaped groove 12 on the rotating rod 11 needs to be a through structure, and the inner wall of the cross-shaped groove 12 needs to be smoothed to reduce friction when the fixed support leg 13 slides. The fixed support leg 13 can extend and retract along the cross-shaped groove 12 to adjust the overall support radius of the support mechanism and adapt to construction areas of different sizes. The two ends of the rotating rod 14 are respectively rotated and engaged with the lower part of the rotating rod 11 and the side of the base 1 to form a triangular support structure, which further improves the stability of the support mechanism and prevents the rotating rod 11 from tilting inward or outward during the support process. The threaded groove 17 on the sliding sleeve 10 needs to be perpendicular to the axis of the support rod 2. The threaded knob 18 is threaded in the threaded groove 17. When the threaded knob 18 is tightened, its friction with the outer wall of the support rod 2 can fix the position of the sliding sleeve 10 on the support rod 2 and prevent the sliding sleeve 10 from sliding on its own.

[0047] The threaded rod 15 on the side wall of the fixed support leg 13 must be fixed perpendicularly to the fixed support leg 13, and the length of the threaded rod 15 must be greater than the width of the cross-shaped groove 12 to ensure that the threaded rod 15 still has enough length to install the fastening knob 16 after passing through the cross-shaped groove 12. When the fastening knob 16 is tightened, the clamping force between the fastening knob 16 and the outer wall of the rotating rod 11 can determine the position of the fixed support leg 13 in the cross-shaped groove 12, and prevent the fixed support leg 13 from expanding or contracting on its own due to force during the support process.

[0048] Example 2:

[0049] This embodiment provides a dust suppression device for building construction. In addition to the technical solution of the above embodiment, it also has the following technical features: the nozzle of the atomizing nozzle 8 is set obliquely upward.

[0050] When the nozzle of the atomizing nozzle 8 is set at an angle upward, the angle between it and the horizontal direction should be controlled between 30° and 60°. This angle range allows the water mist sprayed by the atomizing nozzle 8 to achieve the optimal rising height and horizontal diffusion distance. On the one hand, during the rising process, the water mist can fully contact the dust suspended in the middle and high altitudes during building construction. Compared with nozzles set horizontally or at an angle downward, it can cover dust areas at higher altitudes (such as high-altitude dust generated by tower crane operations), improving dust reduction efficiency. On the other hand, the water mist sprayed at an angle upward falls slowly under the action of gravity, with a longer contact time with the air, which can more fully adsorb dust particles in the air and reduce the suspension time of dust particles. Meanwhile, this setup prevents water mist from being sprayed directly onto the construction surface, thus preventing the ground from becoming muddy due to excessive water accumulation, which could affect the movement of construction machinery and the safety of construction workers. In addition, multiple atomizing nozzles 8 are evenly distributed around the circumference of the diversion pipe 7 and all use upward-sloping nozzles, which can form a ring-shaped water mist coverage area. The diameter of the ring-shaped coverage area can reach 5-8 times the diameter of the diversion pipe 7, which can effectively cover areas with concentrated dust such as steel bar processing areas and concrete mixing areas in building construction, avoiding dead corners where local dust cannot be dealt with.

[0051] Example 3:

[0052] This embodiment provides a dust suppression device for building construction. In addition to the technical solutions of the above embodiments, it also has the following technical features: the upper surface of the water tank 5 is provided with a water inlet, the lower surface of the water tank 5 is provided with a drain outlet, and a drain valve is fixedly installed on the drain outlet.

[0053] The water inlet on the upper surface of the water tank 5 should be located at the edge of the water tank 5, and the diameter of the water inlet should be larger than the diameter of the conventional water supply pipe to facilitate the rapid replenishment of dust suppression water into the water tank 5. At the same time, a flip-top dust cover can be installed at the water inlet. The dust cover is connected to the upper surface of the water tank 5 by a hinge. When no water is being added, the dust cover should be closed to prevent cement dust and sand particles from falling into the water tank 5 during building construction, and to avoid dust clogging the water inlet of the water pump 9 or the nozzle of the atomizing nozzle 8, thus ensuring the normal operation of the dust suppression mechanism.

[0054] The drain outlet on the lower surface of water tank 5 should be located at the lowest point of water tank 5 to ensure that the water in water tank 5 can be completely drained. The drain outlet and the drain valve should be connected by a threaded connection or a flange connection to ensure the sealing of the connection and prevent water leakage. The drain valve should be a corrosion-resistant ball valve or gate valve, which is easy to operate and can quickly control the opening and closing of the drain outlet.

[0055] In practical use, after the water in tank 5 has been used for a period of time, it may become turbid due to the adsorption of dust. At this time, the turbid water can be discharged by opening the drain valve, and then clean water can be injected through the water inlet to ensure the cleanliness of the dust suppression water and prevent impurities in the turbid water from damaging the internal components of the water pump 9. After the winter construction is completed, the drain valve should be opened to drain all the water in tank 5 to prevent the water from freezing and expanding in low temperature environment, which could cause the water tank 5, water pump 9 or connecting pipe to break, thus extending the service life of the device. In addition, when it is necessary to clean the inside of tank 5, clean water can be injected through the water inlet and the drain valve can be opened for rinsing. The wastewater after cleaning is discharged through the drain outlet to ensure that there are no impurities left inside the water tank 5.

[0056] Example 4:

[0057] This embodiment provides a dust suppression device for building construction. In addition to the technical solution of the above embodiment, it also has the following technical features: a plug 19 is interference-fitted to the bottom end of the support rod 2, and a spring 20 is provided between the bottom end of the slide rod 3 and the plug 19.

[0058] When the contact between the fastening knob 21 and the slide rod 3 is loosened, the slide rod 3 and the upper water tank 5 move downward under the action of gravity. At this time, the bottom end of the slide rod 3 will have its gravitational potential energy greatly reduced under the elastic action of the spring 20, thereby avoiding a violent collision between the slide rod 3 or the fixed seat 4 and the support rod 2, and also avoiding a direct hard collision between the bottom end of the slide rod 3 and the plug 19. This protects the structural integrity of the slide rod 3 and the plug 19 and plays a good protective role for this device.

[0059] Example 5:

[0060] This embodiment provides a dust suppression device for building construction. In addition to the technical solution of the above embodiment, it also has the following technical features: a fastening knob 21 is threaded on the upper part of the support rod 2, and the inner end of the fastening knob 21 is tightly fitted to the outer wall of the slide rod 3.

[0061] The upper part of the support rod 2 needs to have a threaded hole that matches the fastening knob 21. The threaded hole needs to be set along the radial direction of the support rod 2 and penetrate through the side wall of the support rod 2 to ensure that after the fastening knob 21 is threaded, one end can be inserted into the internal cavity of the support rod 2 and contact the outer wall of the slide rod 3. The fastening knob 21 needs to be made of high-strength bolts, and its outer end can be equipped with an anti-slip knob, which makes it easy for construction personnel to manually tighten or loosen it without the need for additional tools, thus improving the ease of operation.

[0062] When the height of the slide rod 3 needs to be adjusted, loosen the second fastening knob 21 to separate the inner end of the second fastening knob 21 from the outer wall of the slide rod 3. At this time, the slide rod 3 can be pushed up and down along the inner wall of the support rod 2 to adjust to a position suitable for the current construction dust height (for example, in the early stage of building construction when the dust is low during the site leveling stage, the extension length of the slide rod 3 can be shortened; in the middle stage of construction when the dust is high during the wall construction stage, the extension length of the slide rod 3 can be extended). After the adjustment is completed, tighten the second fastening knob 21 so that the inner end of the second fastening knob 21 fits tightly against the outer wall of the slide rod 3. The radial pressure generated by the second fastening knob 21 on the slide rod 3 can fix the slide rod 3 in the current position, preventing the slide rod 3 from sliding down due to its own weight or construction vibration, and ensuring the height stability of the water tank 5 and the dust suppression mechanism.

[0063] Working principle:

[0064] When using this dust suppression device at a building construction site, the installation and stability testing of the device should be carried out first: slide the sliding sleeve 10 along the support rod 2 to the appropriate height, loosen the threaded knob 18 to adjust the position of the sliding sleeve 10, and then tighten the threaded knob 18 so that one end fits against the outer wall of the support rod 2 to fix the sliding sleeve 10; then rotate the rotating rod 11 around the pin at the edge of the sliding sleeve 10, and simultaneously push the rotating rod 14 to rotate around the side of the base 1 to form a triangular support structure; then slide the fixed support foot 13 along the cross-shaped groove 12 on the rotating rod 11, adjust the support radius until the device is stable as a whole, and finally tighten the fastening knob 16 on the threaded rod 15 on the side wall of the fixed support foot 13 to lock the position of the fixed support foot 13 and complete the stable support of the device.

[0065] Then, adjust the height of the dust suppression mechanism according to the dust height of the construction site: loosen the second fastening knob 21 on the upper part of the support rod 2 so that the inner end of the second fastening knob 21 is separated from the outer wall of the slide rod 3. Slide the slide rod 3 along the axis of the support rod 2 to the water tank 5 and the dust suppression mechanism to achieve the appropriate dust height (such as shortening the extension length of the slide rod 3 for low-rise construction and extending the extension length of the slide rod 3 for high-rise construction). During the adjustment process, the bottom end of the slide rod 3 compresses the spring 20. The spring 20 avoids the slide rod 3 from hard collision with the plug 19 through elastic buffer. After the height is determined, tighten the second fastening knob 21. Fix the position of the slide rod 3 with the radial pressure of the second fastening knob 21 to ensure the height stability of the dust suppression mechanism.

[0066] During dust suppression operations, clean water is injected into water tank 5 through the water inlet on the upper surface of water tank 5, and the dust cover of the water inlet is closed to prevent dust from falling in. The water pump 9 inside water tank 5 is started, and the water pump 9 pressurizes the clean water in water tank 5 and delivers it to the diversion pipe 7 through the connecting pipe. The clean water is sprayed out through multiple atomizing nozzles 8 on the outer circumference of the diversion pipe 7. Because the nozzles of the atomizing nozzles 8 are set at an angle of 30°-60° upward, the water mist can achieve the optimal rising height and horizontal diffusion distance, forming a ring-shaped coverage area to fully adsorb dust particles in the middle and high altitudes and the air, and to avoid water mist being sprayed directly onto the ground and causing water accumulation. When the water in water tank 5 becomes turbid due to adsorbing dust, the drain valve of the drain outlet on the lower surface of water tank 5 is opened to drain the wastewater, and then clean water is added through the water inlet to ensure the dust suppression effect. After the winter construction is completed, the water in water tank 5 is drained to prevent freezing and damage to the device components.

[0067] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A dust suppression device for building construction, characterized in that, include: The base (1) has a triangular cross-section. A support rod (2) is coaxially threaded on the base (1). A slide rod (3) is slidably inserted into the support rod (2). A fixed seat (4) is coaxially fixed to the top of the slide rod (3). A water tank (5) is fixedly installed on the upper surface of the fixed seat (4). A dust suppression mechanism is installed on a water tank (5) and is used to suppress dust at the building construction site. A support mechanism is provided between the base (1) and the support rod (2) and is used to improve the stability of the base (1).

2. The dust suppression device for building construction according to claim 1, characterized in that, The dust suppression mechanism includes: Two clamps (6) are symmetrically fixed on the outer wall of the water tank (5). A diversion pipe (7) is inserted between the two clamps (6). Multiple atomizing nozzles (8) with outward-facing nozzles are fixedly installed on the outer circumference of the diversion pipe (7). A water pump (9) is fixedly installed in the inner cavity of the water tank (5), and the outlet end of the water pump (9) is connected to the diversion pipe (7) through a connecting pipe.

3. A dust suppression device for building construction according to claim 2, characterized in that, The nozzle portion of the atomizing nozzle (8) is set obliquely upward.

4. The dust suppression device for building construction according to claim 1, characterized in that, The upper surface of the water tank (5) is provided with a water inlet, and the lower surface of the water tank (5) is provided with a drain outlet, and a drain valve is fixedly installed on the drain outlet.

5. A dust suppression device for building construction according to claim 1, characterized in that, The supporting structure includes: The sliding sleeve (10) has a triangular structure. The sliding sleeve (10) is slidably installed on the support rod (2) and is coaxial with the support rod (2). Rotary rod one (11) is rotatably installed on each of the three edges of the sliding sleeve (10). A cross-shaped groove (12) is opened on the rotating rod one (11). A fixed support foot (13) is slidably installed in the cross-shaped groove (12). A rotating rod two (14) is rotatably installed on the outer wall of the rotating rod one (11) and near the lower part. The other end of the rotating rod two (14) is rotatably engaged with the side of the base (1). A threaded groove (17) is opened on the sliding sleeve (10). A threaded knob (18) is threadedly installed in the threaded groove (17). The inner end of the threaded knob (18) is in contact with the outer wall of the support rod (2).

6. A dust suppression device for building construction according to claim 5, characterized in that, The side wall of the fixed support foot (13) is fixed with a threaded rod (15), and the other end of the threaded rod (15) passes through the cross-shaped groove (12) and extends to the outside. A fastening knob (16) is threadedly connected to the threaded rod (15).

7. A dust suppression device for building construction according to claim 1, characterized in that, The bottom end of the support rod (2) is fitted with a plug (19) with an interference fit, and a spring (20) is provided between the bottom end of the slide rod (3) and the plug (19).

8. A dust suppression device for building construction according to claim 1, characterized in that, The upper part of the support rod (2) is threaded with a fastening knob two (21), and the inner end of the fastening knob two (21) is tightly fitted to the outer wall of the slide rod (3).

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