Building construction dust fall spraying device
By using a servo motor-driven spraying assembly and airflow assistance, the problem of limited nozzle coverage area has been solved, achieving wider and more uniform water mist spraying and improving dust suppression during construction.
Patent Information
- Application Number
- CN202520145867.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-22
AI Technical Summary
In existing building construction, the spray angle of the nozzles limits the coverage area, making it difficult for the spraying device to effectively capture dust particles and resulting in poor dust suppression.
The spraying assembly, driven by a servo motor, combines a structure with V-shaped tubes, U-shaped frames, bends, outer arc sleeves, and inner arc sleeves to spray water in a mist form. The servo motor drives the nozzle to revolve, and the fan blades generate airflow to expand the spraying range.
It achieves wider coverage and more uniform water mist spraying, improving dust suppression and enhancing the practicality of the device.
Smart Images

Figure CN223887680U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically to a dust suppression spraying device for building construction. Background Technology
[0002] Dust particles are generated in various stages of construction, such as foundation excavation, main structure construction, and material loading, unloading and transportation. These dust particles are dispersed in the air and form inhalable particulate matter (PM10) and fine particulate matter (PM2.5), which seriously damage the quality of the atmospheric environment. Long-term exposure to such an environment can easily cause respiratory diseases such as pneumoconiosis and asthma among construction workers, posing a threat to their health.
[0003] In the early days, dust suppression methods in construction were relatively simple, mainly relying on manual water spraying with hoses. This method not only consumed a lot of manpower, but also, due to the randomness of manual operation, it was difficult to maintain a uniform spraying interval and spray volume, which greatly reduced the dust suppression effect. With the development of technology, some simple spraying devices have emerged, such as setting up a fixed water pipe network on the construction site and connecting ordinary nozzles for spraying operations. However, such devices still have shortcomings.
[0004] Limited by the spray angle of the nozzle, the coverage area of a single nozzle is limited, and the nozzle cannot move well to make the water spray in a mist form. As a result, it cannot capture dust particles well, cannot effectively suppress dust, and cannot achieve the expected dust reduction effect. Its practicality needs to be improved. In view of this, we propose a dust suppression spraying device for construction. Utility Model Content
[0005] The purpose of this utility model is to provide a dust suppression spraying device for building construction, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A dust suppression spraying device for construction sites includes a frame, a water storage tank is clamped to the inner side of the frame, a tank lid is clamped to the top of the water storage tank, casters are provided at the bottom of the frame, and a spraying assembly is provided on the frame. The spraying assembly includes:
[0008] A fixed frame is fixedly installed on one side of the top of the frame. One end of the branch pipe is fixedly connected to the bottom of the fixed frame. The inside of the fixed frame is connected to the inside of the branch pipe. The other end of the branch pipe is fixedly connected to the output end of the water pump. The bottom of the water pump is fixedly installed on the other side of the top of the frame. The top of the water inlet pipe is fixedly installed at the input end of the water pump. The bottom of the water inlet pipe is fixedly installed inside the arc-shaped side wall of the water storage tank. The water inlet pipe passes through the top of the frame.
[0009] A servo motor is fixedly mounted on the outer wall of the bottom end of the mounting bracket. A rotating shaft is fixedly mounted on the output end of the servo motor. The bottom end of the rotating shaft is fixedly mounted on the inner side of a bottom end sealed bearing. The bottom end sealed bearing is fixedly mounted inside the mounting bracket. A conical cover is fixedly mounted on the top end of the rotating shaft. A through slot is provided on the conical cover. Multiple sets of through slots are arranged in a circumferential array with equal spacing. The conical cover is fixedly mounted inside a rotating cylinder. The bottom end of the rotating cylinder is fixedly mounted on the inner side of a top end sealed bearing. The top end sealed bearing is fixedly mounted inside the mounting bracket. The top end of the rotating cylinder is fixedly connected to the input end of a three-way valve. A V-shaped tube is fixedly mounted on the output end of the three-way valve.
[0010] A U-shaped frame is fixedly installed at the other end of the V-shaped tube. A bent pipe is fixedly installed inside one end of the U-shaped frame. An outer arc-shaped sleeve is rotatably installed inside the U-shaped frame. An inner arc-shaped sleeve is fixedly installed inside the outer arc-shaped sleeve. The bent pipe and the inner arc-shaped sleeve are connected. A nozzle is fixedly installed on the inner arc-shaped sleeve and penetrates the outer arc-shaped sleeve. A protective box is fixedly installed at the other end of the U-shaped frame. A servo motor is fixedly installed inside the protective box. A rotating rod is fixedly installed at the output end of the servo motor and is fixedly connected to the end of the outer arc-shaped sleeve away from the bent pipe.
[0011] Preferably, the V-shaped tube, U-shaped frame, bend, outer arc sleeve, inner arc sleeve, protective box, servo motor and rotating rod are provided in two sets, thereby improving the spraying effect.
[0012] Preferably, the nozzles on a single set of inner arc sleeves are provided in multiple sets, and the multiple sets of nozzles are arranged in an arc array with equal spacing.
[0013] Preferably, an auxiliary component is provided on the outside of the water storage tank. The auxiliary component includes a cover door, which is snapped onto the protective box. The cover door has a heat dissipation groove, which can provide waterproof protection for the servo motor and facilitate heat dissipation.
[0014] Preferably, a worm sleeve is fixedly installed on the rotating drum, a central rod is rotatably installed on the inner side of the top of the fixed frame, the central rod is fixedly installed at the center of the inner side of the worm wheel, the worm sleeve meshes with the worm wheel, a round rod is fixedly installed on the central rod, and a fan blade is fixedly installed on the round rod.
[0015] Preferably, the round rod and fan blades are provided in two sets, so that the airflow generated by the fan blades can better blow the water mist sprayed by the spraying assembly to the outside of the frame.
[0016] Compared with the prior art, this utility model provides a dust suppression spraying device for construction sites, which has the following beneficial effects:
[0017] 1. This construction dust suppression spraying device, in order to better perform dust suppression spraying, is equipped with spraying components, a fixed frame, branch pipes, a water pump, and an inlet pipe. It can transport water from the storage tank to the fixed frame, and then spray it through a rotating drum, a three-way valve, and a V-shaped pipe. When the servo motor is started, in conjunction with the rotating shaft, bottom sealing bearing, conical cover, through groove, and top sealing bearing, the V-shaped pipe rotates, resulting in a better spraying effect. In conjunction with the U-shaped frame, bent pipe, outer arc sleeve, inner arc sleeve, and nozzle, the water is sprayed in a water mist. At the same time, the servo motor on the protection box is started, and in conjunction with the rotating rod, the nozzle revolves, resulting in a better spraying effect and thus better dust suppression spraying.
[0018] 2. To improve the practicality of this construction dust suppression spraying device, auxiliary components are incorporated. Firstly, the cover door provides waterproof protection for the servo motor, and the heat dissipation groove facilitates heat dissipation for the servo motor. When the rotating drum rotates, it drives the worm gear sleeve to rotate synchronously. This, through the transmission of the worm wheel, causes the central rod to rotate inside the fixed frame, thereby rotating the round rod and driving the fan blades to rotate. The airflow generated by the fan blades can better blow the water mist sprayed by the spraying components to the outside of the frame, resulting in better water mist dispersion and thus improving the practicality of the device. Attached Figure Description
[0019] Figure 1 This is a top view of the overall structure of this utility model;
[0020] Figure 2 This is a top view of the overall structure of this utility model from another perspective;
[0021] Figure 3 This is a cross-sectional schematic diagram of the fixing frame and branch pipe of this utility model;
[0022] Figure 4 This is a cross-sectional view of the fixing frame and branch pipe from another perspective of this utility model;
[0023] Figure 5 This utility model Figure 4 Enlarged structural diagram of region A in the middle;
[0024] Figure 6 This is a cross-sectional view of the V-shaped tube of this utility model;
[0025] Figure 7 This is a top view of the auxiliary component structure of this utility model;
[0026] Figure 8 This is a cross-sectional view of part of the structure of this utility model;
[0027] Figure 9 This utility model Figure 8 Enlarged structural diagram of region B in the middle;
[0028] Figure 10 This is a cross-sectional view of part of the structure of this utility model;
[0029] Figure 11 This is a cross-sectional view of part of the structure of this utility model from another perspective.
[0030] In the diagram: 1. Frame; 2. Water tank; 21. Tank lid; 3. Casters; 4. Spraying assembly; 41. Fixing frame; 42. Branch pipe; 43. Water pump; 44. Inlet pipe; 45. Servo motor; 46. Shaft; 47. Bottom sealed bearing; 48. Conical cover; 49. Through groove; 410. Rotary drum; 411. Top sealed bearing; 412. Three-way valve; 413. V-shaped pipe; 414. U-shaped frame; 415. Bend; 416. Outer arc sleeve; 417. Inner arc sleeve; 418. Nozzle; 419. Protective box; 420. Servo motor; 421. Rotating rod; 5. Auxiliary components; 51. Cover; 52. Heat dissipation groove; 53. Worm sleeve; 54. Center rod; 55. Worm gear; 56. Round rod; 57. Fan blade. Detailed Implementation
[0031] 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.
[0032] Please see Figure 1 - Figure 11 This utility model provides a technical solution:
[0033] A dust suppression spraying device for construction includes a frame 1, a water storage tank 2 is attached to the inner side of the frame 1, the water storage tank 2 stores cleaning water inside, a lid 21 is attached to the top of the water storage tank 2, and the lid 21 is opened to facilitate the addition of cleaning water. The bottom of the frame 1 is provided with casters 3, four sets of casters 3 are provided, and they have a self-locking structure, so as to better move the device body.
[0034] In one embodiment of this utility model, a spraying assembly 4 is provided on the frame 1. The spraying assembly 4 includes a fixing frame 41. The fixing frame 41 is fixedly installed on one side of the top of the frame 1. The bottom end of the fixing frame 41 is fixedly connected to one end of the branch pipe 42. The interior of the fixing frame 41 is connected to the interior of the branch pipe 42. The other end of the branch pipe 42 is fixedly connected to the output end of the water pump 43. The bottom of the water pump 43 is fixedly installed on the other side of the top of the frame 1. The top end of the water inlet pipe 44 is fixedly installed at the input end of the water pump 43. The bottom end of the water inlet pipe 44 is fixedly installed inside the arc-shaped side wall of the water storage tank 2. The water inlet pipe 44 passes through the top of the frame 1. The fixing frame 41... A servo motor 45 is fixedly mounted on the outer wall of the bottom end. A rotating shaft 46 is fixedly mounted on the output end of the servo motor 45. The bottom end of the rotating shaft 46 is fixedly mounted inside the bottom end sealing bearing 47. The bottom end sealing bearing 47 is fixedly mounted inside the fixing frame 41. A conical cover 48 is fixedly mounted on the top end of the rotating shaft 46. A through slot 49 is provided on the conical cover 48. Four sets of through slots 49 are arranged, and the four sets of through slots 49 are evenly spaced in a circular array. The conical cover 48 is fixedly mounted inside the rotating cylinder 410. The bottom end of the rotating cylinder 410 is fixedly mounted inside the top end sealing bearing 411. The top end sealing bearing 411 is fixedly mounted on the fixing frame 41. Inside, the top of the rotating drum 410 is fixedly connected to the input end of a three-way valve 412. A V-shaped tube 413 is fixedly installed at the output end of the three-way valve 412. A U-shaped frame 414 is fixedly installed at the other end of the V-shaped tube 413. A bent pipe 415 is fixedly installed inside one end of the U-shaped frame 414. An outer arc-shaped sleeve 416 is rotatably installed inside the U-shaped frame 414. An inner arc-shaped sleeve 417 is fixedly installed inside the outer arc-shaped sleeve 416. The bent pipe 415 is internally connected to the inner arc-shaped sleeve 417. A nozzle 418 is fixedly installed on the inner arc-shaped sleeve 417, penetrating the outer arc-shaped sleeve 416. The other end of the U-shaped frame 414 is fixed... A protective box 419 is installed, and a servo motor 420 is fixedly installed inside the protective box 419. A rotating rod 421 is fixedly installed at the output end of the servo motor 420. The rotating rod 421 is fixedly connected to the end of the outer arc sleeve 416 away from the bend 415. In addition, there are two sets of V-shaped tube 413, U-shaped frame 414, bend 415, outer arc sleeve 416, inner arc sleeve 417, protective box 419, servo motor 420 and rotating rod 421, so as to improve the spraying effect. In addition, there are multiple sets of nozzles 418 on a single set of inner arc sleeve 417, and the multiple sets of nozzles 418 are arranged in an arc array with equal spacing.
[0035] In this embodiment, when the water pump 43 is started, it acts as a power source to draw clean water from the water storage tank 2 through the inlet pipe 44. The water pump 43 delivers the water to the branch pipe 42, then into the fixed frame 41. After the water flows into the rotating drum 410, the three-way valve 412 is opened to control the direction of water flow, allowing water to flow out from the port of the V-shaped pipe 413. Furthermore, when the servo motor 45 is started, the rotating shaft 46 rotates. The bottom sealing bearing 47 ensures stable rotation of the rotating shaft 46 while maintaining a tight seal. The through groove 49 ensures normal water flow inside the rotating drum 410, and the inclined arc-shaped outer wall of the conical cover 48 reduces the resistance encountered when the water is transported upwards. With the cooperation of the top sealing bearing 411, the conical cover 48 drives the rotating drum 410 to rotate, achieving... The synchronous rotation of the rotating drum 410 and the conical cover 48 causes the connected three-way valve 412 and V-shaped pipe 413 to rotate, allowing the water to be sprayed tangentially, resulting in a wider spray coverage and better spraying effect. Furthermore, the water flow enters the bend pipe 415 from the V-shaped pipe 413 for transmission. The bend pipe 415 is connected to the inner arc sleeve 417, causing the water to be sprayed out in a water mist from the nozzle 418, making the sprayed water more uniform and covering a wider area. To further expand the spraying range, after the servo motor 420 is started, the rotating rod 421 rotates, driving the outer arc sleeve 416 to rotate, causing the nozzle 418 to revolve, further expanding the water mist coverage and enhancing the spraying effect. The sprayed water mist can better capture dust particles, achieving a better dust suppression effect.
[0036] In one embodiment of this utility model, an auxiliary component 5 is provided on the outside of the water storage tank 2. The auxiliary component 5 includes a cover door 51, which is snapped onto the protective box 419. The cover door 51 has a heat dissipation groove 52, which can provide waterproof protection for the servo motor 420 and facilitate heat dissipation. In addition, a worm sleeve 53 is fixedly installed on the rotating drum 410. A center rod 54 is rotatably installed on the inner side of the top of the fixing frame 41. The center rod 54 is fixedly installed at the center of the inner side of the worm wheel 55. The worm sleeve 53 meshes with the worm wheel 55. A round rod 56 is fixedly installed on the center rod 54. A fan blade 57 is fixedly installed on the round rod 56. In addition, there are two sets of round rods 56 and fan blades 57, so that the airflow generated by the fan blades 57 can better blow the water mist sprayed by the spraying component 4 to the outside of the frame 1.
[0037] In this embodiment, the cover 51 provides waterproof protection for the servo motor 420, preventing water from entering the protective box 419 and damaging the servo motor 420. The heat dissipation slot 52 helps dissipate the heat generated by the servo motor 420 during operation, ensuring stable operation of the servo motor 420. Furthermore, when the drum 410 rotates, the worm sleeve 53 rotates synchronously. Since the worm sleeve 53 meshes with the worm wheel 55, the rotation of the worm sleeve 53 drives the worm wheel 55 to rotate, which in turn drives the center rod 54 to rotate inside the fixed frame 41. When the center rod 54 rotates, it drives the round rod 56 to rotate, which in turn drives the fan blade 57 to rotate. The rotation of the fan blade 57 generates airflow, which better blows the water mist sprayed by the spraying component 4 to the outside of the frame 1, allowing the water mist to disperse better, improving the practicality of the entire device, and expanding the dust suppression range and effect.
[0038] All electrical components appearing in this application are electrically connected to the controller, which is a conventional and known device capable of controlling the water pump 43, servo motor 45, and servo motor 420. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding that are mature in the prior art. The machinery, parts, and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.
[0039] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A dust suppression spraying device for construction, comprising a frame (1), wherein a water storage tank (2) is clamped to the inner side of the frame (1), a tank cover (21) is clamped to the top of the water storage tank (2), and casters (3) are provided at the bottom of the frame (1), characterized in that: A spraying assembly (4) is provided on the frame (1), and the spraying assembly (4) includes: A fixed frame (41) is fixedly installed on one side of the top of the frame (1). The bottom end of the fixed frame (41) is fixedly connected to one end of the branch pipe (42). The inside of the fixed frame (41) is connected to the inside of the branch pipe (42). The other end of the branch pipe (42) is fixedly connected to the output end of the water pump (43). The bottom of the water pump (43) is fixedly installed on the other side of the top of the frame (1). The top end of the water inlet pipe (44) is fixedly installed at the input end of the water pump (43). The bottom end of the water inlet pipe (44) is fixedly installed inside the arc-shaped side wall of the water storage tank (2). The water inlet pipe (44) penetrates the top of the frame (1). A servo motor (45) is fixedly installed on the outer wall of the bottom end of the fixed frame (41). A rotating shaft (46) is fixedly installed at the output end of the servo motor (45). The bottom end of the rotating shaft (46) is fixedly installed inside the bottom sealing bearing (47). The bottom sealing bearing (47) is fixedly installed inside the fixed frame (41). A conical cover (48) is fixedly installed at the top end of the rotating shaft (46). A through groove (49) is opened on the conical cover (48). The conical cover (48) is fixedly installed inside the rotating cylinder (410). The bottom end of the rotating cylinder (410) is fixedly installed inside the top sealing bearing (411). The top sealing bearing (411) is fixedly installed inside the fixed frame (41). The top end of the rotating cylinder (410) is fixedly connected to the input end of a three-way valve (412). One end of a V-shaped tube (413) is fixedly installed at the output end of the three-way valve (412). A U-shaped frame (414) is fixedly installed at the other end of the V-shaped tube (413). A bent pipe (415) is fixedly installed inside one end of the U-shaped frame (414). An outer arc-shaped sleeve (416) is rotatably installed inside the U-shaped frame (414). An inner arc-shaped sleeve (417) is fixedly installed inside the outer arc-shaped sleeve (416). The bent pipe (415) is internally connected to the inner arc-shaped sleeve (417). 7) A nozzle (418) is fixedly installed on the upper part. The nozzle (418) passes through the outer arc sleeve (416). A protective box (419) is fixedly installed at the other end of the U-shaped frame (414). A servo motor (420) is fixedly installed inside the protective box (419). A rotating rod (421) is fixedly installed at the output end of the servo motor (420). The rotating rod (421) is fixedly connected to the end of the outer arc sleeve (416) away from the bend (415).
2. The dust suppression spraying device for construction sites according to claim 1, characterized in that: The V-shaped tube (413), U-shaped frame (414), bend (415), outer arc sleeve (416), inner arc sleeve (417), protective box (419), servo motor (420) and rotating rod (421) are provided in two sets.
3. The dust suppression spraying device for construction sites according to claim 2, characterized in that: The nozzles (418) on the single set of inner arc sleeves (417) are provided in multiple sets, and the multiple sets of nozzles (418) are arranged in an arc array with equal spacing.
4. The dust suppression spraying device for construction sites according to claim 1, characterized in that: An auxiliary component (5) is provided on the outside of the water storage tank (2). The auxiliary component (5) includes a cover (51). The cover (51) is snapped onto the protective box (419). A heat dissipation groove (52) is provided on the cover (51).
5. A dust suppression spraying device for construction sites according to claim 4, characterized in that: A worm sleeve (53) is fixedly installed on the rotating drum (410). A center rod (54) is rotatably installed on the inner side of the top of the fixed frame (41). The center rod (54) is fixedly installed at the center of the inner side of the worm wheel (55). The worm sleeve (53) meshes with the worm wheel (55). A round rod (56) is fixedly installed on the center rod (54). A fan blade (57) is fixedly installed on the round rod (56).
6. A dust suppression spraying device for construction sites according to claim 5, characterized in that: The round rod (56) and the fan blade (57) are provided in two sets.