Building construction dust reducing device
By designing a combination of spray plates and telescopic arms, the spray range of the dust suppression device for construction sites can be flexibly adjusted, solving the problem of low efficiency due to fixed spray range in traditional devices, and improving the spraying effect and flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI UNIV
- Filing Date
- 2025-07-09
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional dust suppression devices used in construction have a fixed spray range, making them difficult to adjust flexibly. They are inefficient and fail to combine high-efficiency dust suppression with energy-saving features.
A dust suppression device for construction work was designed, comprising a mobile trolley, a telescopic arm, and a spray plate. The spray plate is equipped with first and second spray heads. Through the cooperation of the telescopic arm and the limiting frame, the spray range can be flexibly adjusted and the radial diffusion and tangential rotation of the water flow can be achieved. Combined with the use of a winding rope and locking bolts, multi-angle spraying and rotational spraying can be realized.
It enables flexible adjustment of the spray range, expands the dust suppression area, improves atomization uniformity and dust removal effect, and enhances the flexibility and efficiency of the spraying device.
Smart Images

Figure CN224292823U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of dust removal devices for construction sites, specifically a dust suppression device for building construction. Background Technology
[0002] Dust pollution is a common environmental problem during construction, affecting not only the health of construction workers but also potentially polluting the surrounding environment. Traditional dust suppression devices often employ fixed sprinkler systems or simple mobile nozzles, resulting in limited coverage, difficulty in adjusting the spray range, and low efficiency.
[0003] Therefore, there is an urgent need for a device that can flexibly adjust the spray range and has both high efficiency in dust reduction and energy saving. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides a dust suppression device for building construction.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a dust suppression device for construction, including a mobile trolley and a telescopic arm. The outer end of the telescopic arm is equipped with a connecting arm, and the outer end of the connecting arm is rotatably connected to a spray plate. A plurality of first spray heads and a plurality of second spray heads are alternately arranged on the circumferential surface of the spray plate. The opening of the first spray head is arranged along the radial direction of the spray plate, and the opening of the second spray head is arranged along the tangent of the spray plate.
[0006] The spray plate is movably equipped with a limiting frame, which includes a connecting ring and several limiting baffles. When the limiting baffles are located in front of the opening of the second spray head, they block the water outlet of the second spray head.
[0007] As an optimization, the connecting ring is equipped with a locking bolt. When the locking bolt is tightened, the locking bolt abuts against the spray plate, and the position of the limiting frame is locked.
[0008] As an optimization, the connecting arm is equipped with a water supply slip ring, and the spray disc is rotatably connected to the connecting arm through the water supply slip ring;
[0009] When the limiting frame rotates to a position away from the opening of the second spray head, the second spray head sprays water, pushing the spray disc to rotate.
[0010] As an optimization, the mobile trolley is equipped with a connecting seat, the telescopic arm includes two support arms that are rotatably connected, the lower end of the telescopic arm is fixedly connected to the connecting seat, the upper end of the telescopic arm is equipped with a spherical joint, and the upper end of the connecting arm is connected to the spherical joint.
[0011] As an optimization, several limiting plates are connected to the upper side of the telescopic arm, the mobile trolley is equipped with a winding motor, the winding motor is equipped with a winding rope, and the winding rope passes through the limiting plates and is connected to the upper end of the telescopic arm.
[0012] As an optimization, the mobile trolley is equipped with a water tank, the water tank is equipped with a water supply hose, and the water supply hose is connected to the interior of the connecting arm.
[0013] As an optimization, the number of limiting baffles is the same as the number of second spray heads, and the width of the limiting baffles is not less than half the opening diameter of the second spray head.
[0014] The beneficial effects of this plan are as follows:
[0015] The posture of the telescopic arm can be adjusted by the retracting rope to adapt to the dust removal needs of different locations. By alternating the first spray head (radial) and the second spray head (tangential), the dual coverage of radial diffusion and tangential rotation of water flow is achieved, which expands the dust removal area and improves the uniformity of atomization.
[0016] When the second spray head sprays water, it can drive the spray disc to rotate, improving the dust removal effect, and under the action of centrifugal force, it can further increase the coverage of the water mist.
[0017] When the limiting plate is adjacent to the second spray head, it can block the water outlet of the second spray head. After the water flow impacts the limiting plate, the water outlet direction and water outlet speed are changed, thereby realizing the adjustment of the spray disc rotation speed and spray range. Attached Figure Description
[0018] Figure 1 This is an axonometric view of the present invention.
[0019] Figure 2 This utility model Figure 1 A magnified structural diagram of part A.
[0020] Figure 3 This is a schematic diagram of the front view of this utility model.
[0021] Figure 4 This is a schematic diagram of the bottom axial side of the present invention.
[0022] Figure 5 This utility model Figure 4 A magnified structural diagram of part B.
[0023] Figure 6 This is a schematic diagram of the bottom of the spray plate of this utility model.
[0024] The components include: 1. mobile trolley; 2. telescopic arm; 3. connecting arm; 4. spray plate; 5. first spray head; 6. second spray head; 7. connecting ring; 8. limit baffle; 9. locking bolt; 10. water supply slip ring; 11. connecting seat; 12. spherical joint; 13. limit plate; 14. winding motor; 15. winding rope; 16. water tank; and 17. water supply hose. Detailed Implementation
[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0026] like Figures 1-6 As shown, a dust suppression device for construction includes a mobile trolley 1 and a telescopic arm 2. The telescopic arm 2 is equipped with a connecting arm 3 at its outer end. The outer end of the connecting arm 3 is rotatably connected to a spray disc 4. A plurality of first spray heads 5 and a plurality of second spray heads 6 are alternately arranged on the circumferential surface of the spray disc 4. The openings of the first spray heads 5 are arranged along the radial direction of the spray disc 4, and the openings of the second spray heads 6 are arranged along the tangent of the spray disc 4.
[0027] The spray plate 4 is movably equipped with a limiting frame, which includes a connecting ring 7 and several limiting baffles 8. When the limiting baffles 8 are located in front of the opening of the second spray head 6, they block the water outlet of the second spray head 6.
[0028] The mobile trolley 1 is equipped with lockable omnidirectional wheels at the bottom, and the telescopic arm 2 is made of telescopic aluminum alloy. The telescopic stroke varies depending on the length of the telescopic arm 2, and can be set according to actual needs.
[0029] The interior of the connecting arm 3 is hollow, and the connecting arm 3 is connected to the interior of the spray plate 4. The spray plate 4 can be made of engineering plastic or metal. The first spray head 5 and the second spray head 6 are evenly distributed along the circumference of the spray plate 4. Radial spraying is performed through the first spray head 5, and tangential spraying is performed through the second spray head 6.
[0030] like Figure 1 and Figure 2As shown, the connecting ring 7 is equipped with a locking bolt 9. When the locking bolt 9 is tightened, the locking bolt 9 abuts against the spray plate 4, and the position of the limiting frame is locked.
[0031] The connecting arm 3 is equipped with a limit block to limit the connecting ring 7, so that the connecting ring 7 can be set adjacent to the spray plate 4.
[0032] like Figure 1 and Figure 2 As shown, the connecting arm 3 is equipped with a water supply slip ring 10, and the spray disc 4 is rotatably connected to the connecting arm 3 through the water supply slip ring 10.
[0033] When the limiting frame rotates to a position away from the opening of the second spray head 6, the second spray head 6 sprays water, pushing the spray disc 4 to rotate.
[0034] The connecting arm 3 supplies water to the spray plate 4 through the water supply slip ring 10. When the limiting frame approaches the second spray head 6, it can block the water outlet of the second spray head 6 and change the direction of the water outlet of the second spray head 6. When the limiting frame moves away from the second spray head 6, it does not affect the water outlet of the second spray head 6.
[0035] like Figure 1 As shown, the mobile trolley 1 is equipped with a connecting seat 11, the telescopic arm 2 includes two support arms that are rotatably connected, the lower end of the telescopic arm 2 is fixedly connected to the connecting seat 11, the upper end of the telescopic arm 2 is equipped with a spherical joint 12, and the upper end of the connecting arm 3 is connected to the spherical joint 12.
[0036] The spherical joint 12 is a damping connection structure, which can adjust the spray angle of the spray plate 4 according to the actual dust removal needs, and adapt to different spray requirements.
[0037] like Figure 1 As shown, the upper side of the telescopic arm 2 is connected to several limiting plates 13, the mobile trolley 1 is equipped with a winding motor 14, the winding motor 14 is equipped with a winding rope 15, and the winding rope 15 passes through the limiting plates 13 and is connected to the upper end of the telescopic arm 2.
[0038] The winding rope 15 can move relative to the limiting plate 13. Pulling the winding rope 15 can change the extension degree of the telescopic arm 2.
[0039] like Figure 1 As shown, the mobile trolley 1 is equipped with a water tank 16, and the water tank 16 is equipped with a water supply hose 17, which is connected to the interior of the connecting arm 3.
[0040] like Figure 2 As shown, the number of limiting baffles 8 is the same as the number of second spray heads 6, and the width of the limiting baffles 8 is not less than half the opening diameter of the second spray head 6.
[0041] The lower end of the telescopic arm 2 is fixed to the connecting seat 11 by bolts, and the upper end is connected to the connecting arm 3 by a ball joint 12 to achieve multi-angle adjustment;
[0042] When the limiting baffle 8 does not block the second spray head 6, the reaction force of the tangential spray water flow pushes the spray disc 4 to rotate, increasing the atomization coverage area.
[0043] When the locking bolt 9 is tightened, the limit bracket is fixed, and the spray plate 4 only performs radial spraying.
[0044] When using the device, the first step is to position the device: push the mobile trolley 1 to the construction dust area and lock the universal wheel brakes;
[0045] Adjusting the height of telescopic boom 2: Start the winding motor 14 and adjust the telescopic boom 2 to the required height (such as high-altitude spraying above 3 meters) using the winding rope 15.
[0046] Select spray mode:
[0047] Rotary spray mode: Loosen the locking bolt 9 to move the limit baffle 8 away from the second spray head 6, and the spray disc 4 will rotate automatically to expand the atomization range;
[0048] Fixed spray mode: Tighten the locking bolt 9, the limiting baffle 8 blocks the second spray head 6, the first spray head 5 sprays radially, and at the same time the water from the second spray head 6 sprays outward after impacting the limiting baffle 8;
[0049] Start water supply: Open the water supply valve of water tank 16, and water flows through the hose into spray plate 4 to start dust suppression operation;
[0050] Dynamic adjustment: The angle of the telescopic arm can be adjusted or the spray mode can be switched at any time according to the dust situation to optimize the dust reduction effect.
[0051] The above-described specific embodiments are merely specific examples of this utility model. The patent protection scope of this utility model includes, but is not limited to, the product form and style of the above-described specific embodiments. Any construction dust suppression device that conforms to the claims of this utility model and any appropriate changes or modifications made to it by a person skilled in the art should fall within the patent protection scope of this utility model.
Claims
1. A dust suppression device for construction sites, comprising a mobile trolley (1) and a telescopic boom (2), characterized in that: The telescopic arm (2) is provided with a connecting arm (3) at its outer end. The connecting arm (3) is rotatably connected to a spray plate (4). A plurality of first spray heads (5) and a plurality of second spray heads (6) are alternately arranged on the circumferential surface of the spray plate (4). The opening of the first spray head (5) is arranged along the radial direction of the spray plate (4), and the opening of the second spray head (6) is arranged along the tangent of the spray plate (4). The spray plate (4) is movably provided with a limiting frame, which includes a connecting ring (7) and several limiting baffles (8). When the limiting baffles (8) are located in front of the opening of the second spray head (6), they block the water outlet of the second spray head (6).
2. The dust suppression device for construction sites according to claim 1, characterized in that: The connecting ring (7) is equipped with a locking bolt (9). When the locking bolt (9) is tightened, the locking bolt (9) abuts against the spray plate (4), and the position of the limiting frame is locked.
3. The dust suppression device for construction sites according to claim 1, characterized in that: The connecting arm (3) is equipped with a water supply slip ring (10), and the spray disc (4) is rotatably connected to the connecting arm (3) through the water supply slip ring (10); When the limiting frame rotates to an opening away from the second spray head (6), the second spray head (6) sprays water, pushing the spray disc (4) to rotate.
4. A dust suppression device for construction sites according to claim 1, characterized in that: The mobile trolley (1) is equipped with a connecting seat (11), the telescopic arm (2) includes two support arms that are rotatably connected, the lower end of the telescopic arm (2) is fixedly connected to the connecting seat (11), the upper end of the telescopic arm (2) is equipped with a spherical joint (12), and the upper end of the connecting arm (3) is connected to the spherical joint (12).
5. A dust suppression device for construction sites according to claim 1, characterized in that: The upper side of the telescopic arm (2) is connected to several limiting plates (13). The mobile trolley (1) is equipped with a winding motor (14). The winding motor (14) is equipped with a winding rope (15). The winding rope (15) passes through the limiting plates (13) and is connected to the upper end of the telescopic arm (2).
6. A dust suppression device for construction sites according to claim 1, characterized in that: The mobile trolley (1) is equipped with a water tank (16), and the water tank (16) is equipped with a water supply hose (17), which is connected to the interior of the connecting arm (3).
7. A dust suppression device for construction sites according to claim 1, characterized in that: The number of limiting baffles (8) is the same as the number of second spray heads (6), and the width of the limiting baffles (8) is not less than half the opening diameter of the second spray head (6).