A dust suppression device for earthwork construction.

By designing a dust suppression device that extends the spraying range and a pluggable dust cover structure, the problems of limited dust suppression range and inconvenient cleaning in earthwork projects have been solved, achieving a more efficient dust suppression effect and a more convenient cleaning process.

CN224442515UActive Publication Date: 2026-07-03ZHEJIANG QUZHOU YUNZE CONSTRUCTION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG QUZHOU YUNZE CONSTRUCTION CO LTD
Filing Date
2025-06-19
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The dust suppression devices used in existing earthwork construction have a limited spray range, and dust easily adheres to the nozzles, resulting in poor dust suppression effect and inconvenient cleaning.

Method used

A dust suppression device was designed, comprising a bottom water storage tank, a transmission water tray, an external drain pipe, and an extended spray sleeve. The spraying range is expanded by driving an upward push plate through a reciprocating screw, and the plug-in dust sleeve structure facilitates cleaning, thereby improving the spraying range and cleaning efficiency.

Benefits of technology

It expands the dust suppression coverage area, improves the dust suppression effect, simplifies the disassembly and cleaning process of the dust cover, and improves the ease of use of the device.

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Abstract

This utility model relates to the field of earthwork construction and discloses a dust suppression device for earthwork construction. It includes a bottom water tank for bottom support, multiple support frames fixedly connected to the top of the bottom water tank, a transfer water tray fixedly connected to the top of each support frame, multiple external drainage pipes fixedly connected around the outer perimeter of the transfer water tray, and an outwardly extending spray sleeve slidably connected to the outer side of each external drainage pipe. A traction slot is provided at the bottom end of each external drainage pipe, and multiple connecting rods are fixedly connected to the outer side of each external drainage pipe. Limiting rings are fixedly connected to the outer side of each connecting rod. A transfer water pipe is fixedly connected to the left side of the bottom water tank, and the bottom end of the transfer water pipe is fixedly connected to the top center of the transfer water tray. This utility model further improves the dust suppression range, enhances the dust suppression effect, and improves the ease of disassembling the protective netting, thus facilitating daily use of the device.
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Description

Technical Field

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

[0002] Dust suppression devices in earthwork construction are equipment that suppress the spread of dust by spraying, sprinkling water, or covering. A common type is the high-pressure spray system (which atomizes water and sprays it onto suspended particles). It meets environmental protection construction requirements and is suitable for dust-generating processes such as excavation, loading and unloading, and transportation.

[0003] During dust suppression, the spray range of the spray pipe is relatively limited. For larger construction environments, multiple dust suppression devices are required, which increases costs and limits dust suppression. In addition, dust inevitably adheres to the spray nozzle during the dust suppression process. When it comes into contact with water, it becomes sticky. Protective nets are often used to block the dust, but they are extremely inconvenient to disassemble and clean. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a dust suppression device for earthwork construction, thereby improving the dust suppression effect and facilitating the daily use of the device.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A dust suppression device for earthwork construction, comprising:

[0007] A bottom water tank for bottom support has multiple support frames fixedly connected to its top. A water transfer tray is fixedly connected to the top of each support frame. Multiple external drain pipes are fixedly connected around the outer perimeter of the water transfer tray. An outward-extending spray sleeve is slidably connected to the outer side of each external drain pipe. A traction slot is provided at the bottom of each external drain pipe. Multiple connecting rods are fixedly connected to the outer side of each external drain pipe. A limit ring is fixedly connected to the outer side of each connecting rod. A water transfer pipe is fixedly connected to the left side of the bottom water tank. The bottom end of the water transfer pipe is fixedly connected to the top center of the water transfer tray. A traction and tilting assembly is installed on the inner side of the support frame to adjust the spraying range of the outward-extending spray sleeve.

[0008] A dust cover for blocking dust from the outside of an extended water spray sleeve. A connecting arc plate is fixedly connected to the inner side of the dust cover. A mounting bracket is fixedly connected to the top of the extended water spray sleeve. A limiting component is installed inside the mounting bracket to facilitate the disassembly of the dust cover.

[0009] Furthermore, the limiting component includes an insert post that slides inside the mounting bracket, with an outer dial plate fixedly connected to the top of the insert post, and a pressure ring fixedly connected to the outside of the insert post. The top of the pressure ring is connected to the inside of the mounting bracket via a pressure spring.

[0010] Furthermore, the traction tilting assembly includes a traction push plate that slides inside the support frame. A starter motor is fixedly connected to the top center of the bottom water tank. A reciprocating screw is fixedly connected to the drive end of the starter motor. The external thread of the reciprocating screw is connected to the inner side of the traction push plate. An upper push plate is rotated around the outer perimeter of the traction push plate. A fixed seat is fixedly connected to the bottom end of each of the outward-extending water spray sleeves. The top ends of the upper push plates are rotatably connected to the inside of the fixed seats. The top end of the reciprocating screw is rotatably connected to the bottom end of the transmission water pan.

[0011] Furthermore, the bottom end of the traction push plate is fixedly connected with multiple limiting posts, the bottom end of the limiting posts is attached to the top of the bottom water tank, and the outer and inner sides of the outward-extending water spray sleeve are fixedly connected to these posts to prevent the dust cover from detaching.

[0012] Furthermore, a water pump is fixedly connected to the top of the bottom water tank outside the water transmission pipe.

[0013] Furthermore, the outside of the inserting column penetrates the inside of the fixing seat and is inserted into the top of the outward-extending water spray sleeve.

[0014] Furthermore, each of the extended water spray sleeves has a positioning strip fixedly connected to its top end, and the inner side of the dust cover is slidably connected to the outside of the positioning strip to achieve the installation limit of the dust cover.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the rotation of the reciprocating screw causes the traction push plate to move up and down reciprocally, generating an outward thrust on the push plate, thereby causing the outward water spray sleeve to reciprocate and expand outside the external drain pipe, thus further increasing the range of dust suppression and improving the dust suppression effect of the device.

[0017] 2. In this utility model, the external rotating disc generates an upward pulling force on the inserting column, thereby disengaging the inserting column from the interior of the fixing seat, thus moving the dust cover outward, disassembling the dust cover for cleaning, improving the convenience of disassembling the protective net and facilitating the daily use of the device. Attached Figure Description

[0018] Figure 1 This is an overall drawing of a dust suppression device for earthwork construction proposed in this utility model.

[0019] Figure 2 This utility model provides a diagram of the traction upper push plate mechanism for a dust suppression device used in earthwork construction.

[0020] Figure 3 This is a diagram of the outer structure of the external drainage pipe of a dust suppression device for earthwork construction proposed in this utility model.

[0021] Legend:

[0022] 1. Bottom water tank; 2. Support frame; 3. Traction push plate; 4. Water pump; 5. Push plate; 6. Outward spray sleeve; 7. Dust cover; 8. Outward push disc; 9. Water transfer pipe; 10. Water transfer pan; 11. Outward drain pipe; 12. Insertion column; 13. Fixing base; 14. Limiting column; 15. Limiting ring; 16. Mounting frame; 17. Downward pressure spring; 18. Positioning strip; 19. Traction slot; 20. Limiting ring; 21. Connecting rod; 22. Downward pressure ring; 23. Connecting arc plate; 24. Starter motor; 25. Reciprocating screw. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1-3This utility model provides an embodiment of a dust suppression device for earthwork construction, comprising: a bottom water tank 1 for bottom support; multiple support frames 2 fixedly connected to the top of the bottom water tank 1; a transmission water tray 10 fixedly connected to the top of the support frames 2; multiple external drainage pipes 11 fixedly connected around the outer perimeter of the transmission water tray 10; an external spray sleeve 6 slidably connected to the outer side of each external drainage pipe 11; a traction slot 19 opened at the bottom end of each external drainage pipe 11; multiple connecting rods 21 fixedly connected to the outer side of each external drainage pipe 11; a limit ring 20 fixedly connected to the outer side of each connecting rod 21; a transmission water pipe 9 fixedly connected to the left side of the bottom water tank 1; the bottom end of the transmission water pipe 9 fixedly connected to the middle of the top of the transmission water tray 10; and a traction tilting assembly installed inside the support frames 2 to adjust the spraying range of the external spray sleeve 6. The components include a traction push plate 3 that slides inside the support frame 2, a starter motor 24 that is fixedly connected to the top center of the bottom water tank 1, a reciprocating screw 25 that is fixedly connected to the drive end of the starter motor 24, an external thread of the reciprocating screw 25 that is connected to the inner side of the traction push plate 3, an upper push plate 5 that rotates around the outer side of the traction push plate 3, a fixed seat 13 that is fixedly connected to the bottom of the outward spray sleeve 6, the top of the upper push plate 5 that is rotatably connected to the inside of the fixed seat 13, the top of the reciprocating screw 25 that is rotatably connected to the bottom of the transmission water pan 10, a plurality of limit posts 14 that are fixedly connected to the bottom of the traction push plate 3, the bottom of the limit posts 14 that are attached to the top of the bottom water tank 1, 15 that is fixedly connected to the inner side of the outer side of the outward spray sleeve 6 to prevent the dust cover 7 from falling off, and a water pump 4 that is fixedly connected to the top of the bottom water tank 1 outside the transmission water pipe 9.

[0025] When the dust suppression device is working, the water pump 4 is first started to pump the water in the water storage tank 1 into the water transfer pan 10 through the water transfer pipe 9, and then to the outward spray sleeve 6 through the drain pipe 11. The water flow flows in from the traction slot 19 under the guidance of the limiting ring 20, and finally sprays downward through the nozzle at the bottom of the outward spray sleeve 6. At the same time, the motor 24 is started to drive the reciprocating screw 25 to rotate, which drives the upper push plate 3 to move up and down along the screw, pushes the upper push plate 5 to flip, and causes the fixed seat 13 to expand outward, which drives the outward spray sleeve 6 to unfold, thereby expanding the dust suppression coverage area. Through the reciprocating motion of the upper push plate 3 and the synchronous extension and retraction of the outward spray sleeve 6, the spray angle and range can be dynamically adjusted, which effectively enhances the dust suppression effect and improves the overall dust suppression efficiency.

[0026] Reference Figure 2 and Figure 3A dust cover 7 is used to block dust from the outside of the extended water spray sleeve 6. A connecting arc plate 23 is fixedly connected to the inside of the dust cover 7. A mounting bracket 16 is fixedly connected to the top of the extended water spray sleeve 6. A limiting component is installed inside the mounting bracket 16 to facilitate the disassembly of the dust cover 7. The limiting component includes an insert post 12 that slides inside the mounting bracket 16. An outer push disc 8 is fixedly connected to the top of the insert post 12. A pressure ring 22 is fixedly connected to the outside of the insert post 12. The top of the pressure ring 22 is connected to the inside of the mounting bracket 16 through a pressure spring 17. The outside of the insert post 12 passes through the inside of the fixing seat 13 and is inserted into the top of the extended water spray sleeve 6. A positioning strip 18 is fixedly connected to the top of the extended water spray sleeve 6. The inside of the dust cover 7 is slidably connected to the outside of the positioning strip 18 to achieve the installation limit of the dust cover 7.

[0027] When the dust cover 7's surface is affected by dust accumulation, thus hindering dust suppression, first turn off the water pump 4, then operate the outer dial 8 to pull the insert post 12 upwards, disengaging it from the slot of the connecting arc plate 23. The dust cover 7 can then be pulled outwards for cleaning. After cleaning, align the positioning groove on the inner side of the dust cover 7 with the positioning strip 18 and re-insert it into the outward-spraying water cover 6. Then, lift the insert post 12 to the bottom of the connecting arc plate 23. At this time, the downward-pressing spring 17 pushes the downward-pressing ring 22 downwards, causing the insert post 12 to automatically engage with the fixing seat 13 and complete the locking. This design adopts a spring-assisted plug-in structure, which not only ensures the dust cover 7 is installed securely but also achieves quick disassembly and assembly, greatly improving the device's maintenance convenience and daily usage efficiency.

[0028] Working principle: The device is placed at the dust suppression point. Water pump 4 is started, drawing water from the bottom water tank 1 upwards through transmission pipe 9 into transmission water tray 10. From there, water is transferred from transmission water tray 10 to the outer drain pipe 11. Limiting ring 20 prevents water from flowing into traction slot 19 and out through the slot at the bottom of the outward-extending spray sleeve 6, spraying water downwards. Simultaneously, the starter motor 24 is started, rotating the reciprocating screw 25. This causes the inner side of the traction upper push plate 3 to contact the outer thread of the reciprocating screw 25, moving the upper push plate 3 upwards. This generates an upward thrust on the inner side of the upper push plate 5, causing it to flip and generate an outward thrust on the fixed base 13. This unfolds the outward-extending spray sleeve 6, expanding the dust suppression area. The traction push plate 3 moves up and down reciprocally, and then the outward spray water sleeve 6 moves reciprocally to improve the dust reduction effect. When the outer surface of the dust cover 7 is excessively covered with dust, the water pump 4 is turned off. The outer push disc 8 exerts an upward pulling force on the insertion post 12, thereby disengaging the insertion post 12 from the inside of the connecting arc plate 23. At this time, an outward pulling force is exerted on the dust cover 7, thereby removing the dust cover 7 and cleaning it. After cleaning, the groove on the inner side of the dust cover 7 is aligned with the outer side of the positioning strip 18 for positioning. The dust cover 7 is then reinserted into the outside of the outward spray water sleeve 6, and the insertion post 12 is pulled up again. When the connecting arc plate 23 moves to the bottom of the insertion post 12, the downward pressure spring 17 exerts a downward pushing force on the downward pressure ring 22, thereby inserting the insertion post 12 into the inside of the fixing seat 13, thus completing the fixing.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 falling device for earthwork construction, characterized by, include: A bottom water tank (1) for bottom support, a plurality of support frames (2) are fixedly connected to the top of the bottom water tank (1), a transmission water tray (10) is fixedly connected to the top of the support frame (2), a plurality of external drain pipes (11) are fixedly connected around the outside of the transmission water tray (10), an outward spray sleeve (6) is slidably connected to the outside of each external drain pipe (11), a traction slot (19) is opened at the bottom of the external drain pipe (11), a plurality of connecting rods (21) are fixedly connected to the outside of the external drain pipe (11), a limit ring (20) is fixedly connected to the outside of the connecting rods (21), a transmission water pipe (9) is fixedly connected to the left side of the bottom water tank (1), the bottom end of the transmission water pipe (9) is fixedly connected to the middle of the top of the transmission water tray (10), and a traction flipping component is installed on the inner side of the support frame (2) to adjust the spraying range of the outward spray sleeve (6); A dust cover (7) is used to block dust from the outside of the outward-spraying water sleeve (6). A connecting arc plate (23) is fixedly connected to the inside of the dust cover (7). A mounting bracket (16) is fixedly connected to the top of the outward-spraying water sleeve (6). A limiting component is installed inside the mounting bracket (16) to facilitate the disassembly of the dust cover (7).

2. The dust falling device for earthwork construction of claim 1, characterized in that: The limiting component includes an insert post (12) that slides inside the mounting bracket (16), with an outer dial (8) fixedly connected to the top of the insert post (12), and a pressure ring (22) fixedly connected to the outside of the insert post (12). The top of the pressure ring (22) is connected to the inside of the mounting bracket (16) via a pressure spring (17).

3. The dust falling device for earthwork construction of claim 1, wherein: The traction and tilting assembly includes a traction upper push plate (3) that slides inside the support frame (2). A starter motor (24) is fixedly connected to the top center of the bottom water tank (1). A reciprocating screw (25) is fixedly connected to the drive end of the starter motor (24). The external thread of the reciprocating screw (25) is connected to the inner side of the traction upper push plate (3). An upper push plate (5) is rotated around the outside of the traction upper push plate (3). A fixed seat (13) is fixedly connected to the bottom end of the outward spray sleeve (6). The top of the upper push plate (5) is rotatably connected to the inside of the fixed seat (13). The top of the reciprocating screw (25) is rotatably connected to the bottom end of the transmission water pan (10).

4. The dust falling device for earthwork construction of claim 3, characterized in that: The bottom end of the traction push plate (3) is fixedly connected with multiple limiting posts (14), the bottom end of the limiting posts (14) is attached to the top of the bottom water tank (1), and the outer and inner sides of the outward spray sleeve (6) are fixedly connected with (15) to prevent the dust cover (7) from falling off.

5. A dust suppression device for earthwork construction according to claim 1, characterized in that: A water pump (4) is fixedly connected to the top of the bottom water tank (1) outside the transmission water pipe (9).

6. The dust falling device for earthwork construction of claim 2, characterized in that: The outside of the inserting column (12) penetrates the inside of the fixing seat (13) and is inserted into the top of the outward-spraying water sleeve (6).

7. The dust falling device for earthwork construction of claim 1, wherein: The top of each of the extended water spray sleeves (6) is fixedly connected with a positioning strip (18), and the inner side of the dust cover (7) is slidably connected to the outside of the positioning strip (18) to achieve the installation limit of the dust cover (7).