A dust suppression spray device for construction sites

By introducing a blocking ring and water collection tray structure into the spray device, combined with a water storage tank system and motor drive, the problem of water droplets falling on the ground was solved, achieving a clean and tidy construction site and effective dust suppression.

CN224422338UActive Publication Date: 2026-06-30JISCO GRP BUILDING ENG & MANAGEMENT CONSULTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JISCO GRP BUILDING ENG & MANAGEMENT CONSULTING CO LTD
Filing Date
2025-06-03
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing water mist dust suppression equipment at construction sites can easily cause water droplets to fall on the ground, affecting the cleanliness of the construction site and the safety of the equipment.

Method used

A spraying device was designed, which uses a first and second blocking ring and a water collection tray structure to prevent water droplets from falling to the ground. At the same time, water droplets are collected through a water collection pipe and a water storage tank system, and a large-area spraying is achieved by combining the motor-driven nozzle rotation.

Benefits of technology

It effectively prevents water droplets from falling on the ground, keeps the construction site clean and tidy, and achieves a large-area dust suppression effect.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model relates to the field of dust suppression technology, specifically a dust suppression spraying device for construction sites. The device uses a first and second blocking ring and a water collection tray to collect water droplets formed at the nozzle outlet edge, preventing them from falling onto the ground. A water collection pipe and a water storage tank guide water from the collection tray to the storage tank, preventing overflow. A motor enables the rotation of the spray pipe and nozzle, achieving large-area water spraying for dust suppression. This device can be easily added to existing dust suppression systems, ensuring good dust suppression while preventing water droplets from falling onto the ground, thus keeping construction sites clean and tidy.
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Description

Technical Field

[0001] This utility model relates to the field of dust suppression technology, specifically a dust suppression spray device for construction sites. Background Technology

[0002] Dust is easily generated during construction, which not only affects the surrounding environment of the construction site but also harms the health of on-site construction workers.

[0003] Currently, there are various organizations that suppress dust at construction sites. Spraying water mist for dust suppression is widely used in the construction and municipal fields. Water mist spraying has a significant dust suppression effect, but in actual use, the following problems may occur.

[0004] Water is usually sprayed upwards or diagonally upwards. When the water is sprayed, water droplets are easily formed at the nozzle and drip down. During long-term use, water is very likely to drip onto the ground, causing water accumulation around the equipment.

[0005] If water mist spraying equipment is used in the municipal sector, water droplets falling to the ground will not cause too much impact. However, if water mist spraying equipment is used in the construction sector, due to the large number of equipment, parts, or raw materials on the construction site, the water accumulation on the ground may affect the equipment, parts, or raw materials on the construction site. In addition, there are a lot of unpaved roads on the construction site. When the water on the ground comes into contact with the unpaved roads, it can easily make the ground muddy, thereby affecting the cleanliness of the construction site and affecting the passage of other equipment. Utility Model Content

[0006] The purpose of this utility model is to provide a dust suppression spray device for construction sites, which prevents water droplets from flowing down to the ground when water is sprayed out, thereby ensuring that the construction site is clean and tidy.

[0007] This utility model discloses a dust suppression spraying device for construction sites, comprising an atomizing device fixedly connected to a frame, a main water tank fixedly connected inside the frame, a water pump fixedly connected to the frame, the inlet of the water pump connected to the main water tank via a connecting pipe, and the outlet of the water pump connected to the inlet of the atomizing device via a connecting pipe. A spray pipe is fixedly connected to the outlet of the atomizing device, extending vertically upwards from the atomizing device. A nozzle is fixedly connected to the upper end of the spray pipe, away from the atomizing device. A water collection tray is connected to the outer wall of the spray pipe, the top surface of which is open, and the side wall of the water collection tray is inclined with the upper inner diameter larger than the lower inner diameter. The water collection tray is positioned above the atomizing device. A first blocking ring and a second blocking ring are fixedly connected to the upper outer wall of the spray pipe, the first blocking ring being positioned above the second blocking ring. The outer diameters of both the first and second blocking rings are smaller than the inner diameter of the bottom surface of the water collection tray.

[0008] Furthermore, both the first and second blocking rings have multiple guide grooves evenly distributed around their circumference.

[0009] Furthermore, the upper end of the spray pipe is provided with an elbow, the nozzle is connected to the elbow, the first blocking ring is fixedly connected to the outer wall of the elbow, the first blocking ring is close to the nozzle, and the second blocking ring is fixedly connected to the straight section of the second blocking ring.

[0010] Furthermore, the horizontal projection area of ​​the elbow at the upper end of the spray pipe and the nozzle is located inside the inner diameter of the bottom surface of the water collection tray.

[0011] Furthermore, a water storage tank is fixedly connected to the frame, the water storage tank is located above the atomizing device and below the water collection tray, and a water collection pipe is connected between the water storage tank and the water collection tray. The top surface of the water storage tank is provided with a hole for the water collection pipe to pass through, and the bottom surface of the water collection tray is provided with a hole for the water collection pipe to pass through.

[0012] Furthermore, a motor is fixedly connected to the frame, the motor is located above the atomizing device, a sealed housing is provided on the outside of the motor, the motor output shaft passes through the sealed housing, a drive gear is fixedly connected to the motor output shaft, the drive gear is located outside the sealed housing, a rotating disk is fixedly connected to the lower outer wall of the spray pipe, a driven gear is fixedly connected to the outer wall of the rotating disk, the driven gear meshes with the drive gear, a protruding cylinder is provided at the center of the water collecting tray, the spray pipe is rotatably connected inside the protruding cylinder, and a sealing ring is provided between the inner wall of the protruding cylinder and the outer wall of the spray pipe.

[0013] Furthermore, a level gauge is fixedly connected to the outer wall of the water storage tank.

[0014] Furthermore, the water storage tank is connected to the main water tank via a connecting pipe.

[0015] Furthermore, a water inlet pipe is fixedly connected to the bottom of the main water tank, and a valve is installed on the water inlet pipe.

[0016] The beneficial effects of this utility model are as follows: By setting a first blocking ring, a second blocking ring, and a water collection tray, this utility model ensures that water droplets formed at the edge of the nozzle outlet fall into the water collection tray, thus preventing water droplets from falling onto the ground. The water collection pipe and water storage tank allow water in the water collection tray to be diverted into the water storage tank, preventing water from overflowing. The motor enables the rotation of the spray pipe and nozzle, achieving large-area water spraying for dust suppression. This utility model is easy to install on existing spray dust suppression systems, ensuring good dust suppression while preventing water droplets from falling onto the ground, thus keeping the construction site clean and tidy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the drive gear of this utility model;

[0019] Figure 3 This is a schematic diagram of the water collection tray of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the second blocking ring of this utility model.

[0021] In the diagram: 1. Atomizing device; 2. Water pump; 3. Water pipe; 4. Spray pipe; 5. Nozzle; 6. Water tank; 7. Motor; 8. Drive gear; 9. Driven gear; 10. Rotating disc; 11. Water collection tray; 12. Water collection pipe; 13. Display tube; 14. First blocking ring; 15. Second blocking ring; 16. Main water tank; Detailed Implementation

[0022] like Figures 1-4 As shown, this utility model discloses a dust suppression spray device for construction sites, comprising an atomizing device 1 fixedly connected to a frame. A main water tank 16 is fixedly connected inside the frame, and a water pump 2 is fixedly connected to the frame. The inlet of the water pump 2 is connected to the main water tank 16 via a connecting pipe. It should be noted that the connecting pipe connected to the inlet of the water pump 2 needs to be inserted into the bottom of the main water tank 16, or the connecting pipe connected to the inlet of the water pump 2 can be directly connected to the bottom surface of the main water tank 16. The outlet of the water pump 2 is connected to the inlet of the atomizing device 1 via a connecting pipe. A spray pipe 4 is fixedly connected to the outlet of the atomizing device 1, extending vertically upwards from the atomizing device 1. A nozzle 5 is fixedly connected to the upper end of the spray pipe 4 away from the atomizing device 1. A water collection tray 11 is connected to the outer wall of the spray pipe 4. The top surface of the water collection tray 11 is open, and the inner diameter of the upper end of the side wall of the water collection tray 11 is greater than... The lower end of the inner diameter is inclined, and the water collection tray 11 is located above the atomizing device 1. A first blocking ring 14 and a second blocking ring 15 are fixedly connected to the upper outer wall of the spray pipe 4. The first blocking ring 14 is located above the second blocking ring 15. The outer diameters of the first blocking ring 14 and the second blocking ring 15 are both smaller than the inner diameter of the bottom surface of the water collection tray 11. Multiple guide grooves are evenly distributed around the circumference of the first blocking ring 14 and the second blocking ring 15. The upper end of the spray pipe 4 is provided with an elbow, and the nozzle 5 is connected to the elbow. The first blocking ring 14 is fixedly connected to the outer wall of the elbow and is close to the nozzle 5. The second blocking ring 15 is fixedly connected to the straight section of the second blocking ring 15. The horizontal projection areas of the elbow and the nozzle 5 at the upper end of the spray pipe 4 are both located inside the inner diameter of the bottom surface of the water collection tray 11. The bottom of the main water tank 16 is fixedly connected to a water inlet pipe 3, and a valve is provided on the water inlet pipe 3.

[0023] Water pump 2 supplies water from main water tank 16 to atomizing device 1. Atomizing device 1 atomizes the water and sprays it out from nozzle 5 through spray pipe 4 to achieve water mist dust suppression. Water droplets easily form at the edge of nozzle 5 outlet. The water droplets adhere to the outer surface of spray pipe 4 and flow downward. The flowing water drips into water collection tray 11 under the action of first blocking ring 14 and second blocking ring 15, thereby preventing water droplets from falling to the ground.

[0024] The elbow at the upper end of the spray pipe 4 allows the water mist sprayed from the nozzle 5 to cover a larger area, thus achieving a better dust suppression effect.

[0025] The outer diameters of the first blocking ring 14 and the second blocking ring 15 are both smaller than the inner diameter of the bottom surface of the water collection tray 11; the horizontal projection areas of the elbow and the nozzle 5 at the upper end of the spray pipe 4 are both located inside the inner diameter of the bottom surface of the water collection tray 11; all of these are to ensure that water dripping from the outer diameter of the first blocking ring 14 and the second blocking ring 15 or water dripping directly from the elbow and the nozzle 5 can smoothly enter the water collection tray 11.

[0026] In this embodiment, the first blocking ring 14 and the second blocking ring 15 have the same structure, both adopting the following... Figure 4 The difference between the first blocking ring 14 and the second blocking ring 15 in the structure shown is that the first blocking ring 14 is fixedly connected to the outer wall of the elbow, and the second blocking ring 15 is fixedly connected to the straight section of the second blocking ring 15. The first blocking ring 14 is inclined relative to the second blocking ring 15.

[0027] The water inlet pipe 3 is designed to facilitate the addition of water to the main water tank 16.

[0028] In the above-mentioned technical solution, a water collection tray 11 is set to prevent water droplets from falling to the ground. However, the water collection tray 11 has a limited capacity. In order to prevent the water in the water collection tray 11 from overflowing, it is necessary to observe and remove the water in the water collection tray 11 at any time, which is inconvenient to use. To address this problem, a water storage tank 6 is fixedly connected to the frame of this utility model. The water storage tank 6 is located above the atomizing device 1 and below the water collection tray 11. A water collection pipe 12 connects the water storage tank 6 and the water collection tray 11. The top surface of the water storage tank 6 has a hole for the water collection pipe 12 to pass through, and the bottom surface of the water collection tray 11 has a hole for the water collection pipe 12 to pass through. The water storage tank 6 is connected to the main water tank 16 through a pipe. A level gauge 13 is fixedly connected to the outer wall of the water storage tank 6.

[0029] The water collection pipe 12 and the water storage tank 6 are designed to guide the water in the water collection pan 11 into the water storage tank 6, thereby preventing the water in the water collection pan 11 from overflowing. The water in the water storage tank 6 eventually flows into the main water tank 16. In actual use, a valve can be installed on the pipe between the water storage tank 6 and the main water tank 16. The level gauge 13 is installed to facilitate observation of the water level inside the water storage tank 6. In actual use, a level gauge 13 can also be installed on the outer wall of the main water tank 16.

[0030] In another embodiment of this utility model, a motor 7 is fixedly connected to the frame of the utility model. The motor 7 is located above the atomizing device 1. A sealed box is provided on the outside of the motor 7. The output shaft of the motor 7 passes through the sealed box. A drive gear 8 is fixedly connected to the output shaft of the motor 7. The drive gear 8 is located outside the sealed box. A rotating disk 10 is fixedly connected to the lower outer wall of the spray pipe 4. A driven gear 9 is fixedly connected to the outer wall of the rotating disk 10. The driven gear 9 meshes with the drive gear 8. A protruding cylinder is provided at the center of the water collecting plate 11. The spray pipe 4 is rotatably connected inside the protruding cylinder. A sealing ring is provided between the inner wall of the protruding cylinder and the outer wall of the spray pipe 4.

[0031] The starter motor 7 drives the drive gear 8 to rotate, the drive gear 8 drives the driven gear 9 to rotate, and the driven gear 9 drives the spray pipe 4 to rotate through the rotating disk 10, thereby achieving large-area water spraying for dust suppression.

[0032] The sealing housing on the outside of motor 7 makes it easy for sprayed water to affect the normal use of motor 7.

[0033] A sealing ring is provided between the inner wall of the protruding cylinder and the outer wall of the spray pipe 4, which satisfies the rotational connection between the spray pipe 4 and the protruding cylinder and prevents water leakage at the rotational connection between the spray pipe 4 and the protruding cylinder.

[0034] In this embodiment, the motor 7 is located on the side of the water storage tank 6. Both the driven gear 9 and the driving gear 8 are mounted on the spray pipe 4 above the water storage tank 6. There is no through-hole or sealing relationship between the spray pipe 4 and the water storage tank 6. The position and shape of the water storage tank 6 can be arranged to avoid the spray pipe 4. In actual design and manufacturing, the position and shape of the above-mentioned components can be flexibly set according to the specific structure of the existing spray device.

Claims

1. A dust suppression spraying device for construction sites, comprising an atomizing device (1), the atomizing device (1) being fixedly connected to a frame, a main water tank (16) being fixedly connected inside the frame, a water pump (2) being fixedly connected to the frame, the inlet end of the water pump (2) being connected to the main water tank (16) via a connecting pipe, the outlet end of the water pump (2) being connected to the inlet end of the atomizing device (1) via a connecting pipe, a spray pipe (4) being fixedly connected to the outlet end of the atomizing device (1), the spray pipe (4) extending vertically upwards from the atomizing device (1), and a nozzle (5) being fixedly connected to the upper end of the spray pipe (4) away from the atomizing device (1), characterized in that: A water collection plate (11) is connected to the outer wall of the spray pipe (4). The top surface of the water collection plate (11) is open. The side wall of the water collection plate (11) is inclined with the upper inner diameter being larger than the lower inner diameter. The water collection plate (11) is located above the atomizing device (1). A first blocking ring (14) and a second blocking ring (15) are fixedly connected to the upper outer wall of the spray pipe (4). The first blocking ring (14) is located above the second blocking ring (15). The outer diameter of the first blocking ring (14) and the outer diameter of the second blocking ring (15) are both smaller than the inner diameter of the bottom surface of the water collection plate (11).

2. The dust suppression spray device for construction sites according to claim 1, characterized in that: The first blocking ring (14) and the second blocking ring (15) are both circumferentially distributed with multiple guide grooves.

3. A dust suppression spray device for construction sites according to claim 2, characterized in that: The upper end of the spray pipe (4) is provided with an elbow, the nozzle (5) is connected to the elbow, the first blocking ring (14) is fixedly connected to the outer wall of the elbow, the first blocking ring (14) is close to the nozzle (5), and the second blocking ring (15) is fixedly connected to the straight section of the second blocking ring (15).

4. A dust suppression spray device for construction sites according to claim 3, characterized in that: The horizontal projection areas of the elbow at the upper end of the spray pipe (4) and the nozzle (5) are both located inside the inner diameter of the bottom surface of the water collection plate (11).

5. A dust suppression spray device for construction sites according to claim 4, characterized in that: A water storage tank (6) is fixedly connected to the frame. The water storage tank (6) is located above the atomizing device (1) and below the water collection tray (11). A water collection pipe (12) is connected between the water storage tank (6) and the water collection tray (11). A hole for the water collection pipe (12) to pass through is provided on the top surface of the water storage tank (6), and a hole for the water collection pipe (12) to pass through is provided on the bottom surface of the water collection tray (11).

6. A dust suppression spray device for construction sites according to any one of claims 1-5, characterized in that: A motor (7) is fixedly connected to the frame. The motor (7) is located above the atomizing device (1). A sealed box is provided on the outside of the motor (7). The output shaft of the motor (7) passes through the sealed box. The output shaft of the motor (7) is fixedly connected to the drive gear (8). The drive gear (8) is located outside the sealed box. A rotating disk (10) is fixedly connected to the lower outer wall of the spray pipe (4). A driven gear (9) is fixedly connected to the outer wall of the rotating disk (10). The driven gear (9) meshes with the drive gear (8). A protruding cylinder is provided in the center of the water collecting tray (11). The spray pipe (4) is rotatably connected inside the protruding cylinder. A sealing ring is provided between the inner wall of the protruding cylinder and the outer wall of the spray pipe (4).

7. A dust suppression spray device for construction sites according to claim 5, characterized in that: A level gauge (13) is fixedly connected to the outer wall of the water storage tank (6).

8. A dust suppression spray device for construction sites according to claim 7, characterized in that: The water storage tank (6) is connected to the main water tank (16) via a pipe.

9. A dust suppression spray device for construction sites according to claim 1, characterized in that: The bottom of the main water tank (16) is fixedly connected to a water inlet pipe (3), and a valve is provided on the water inlet pipe (3).