Dust removal spraying device and method for road asphalt construction

Abstract

The invention discloses a dust removal spraying device and method for road asphalt construction, and relates to the technical field of spraying dust removal. The dust removal spraying device for road asphalt construction comprises a base, a supporting frame mounted at the top of the base, a mounting plate mounted in the supporting frame through a supporting shaft and a spray head fixed to the mounting plate. The base is provided with an adjusting assembly used for changing the inclination angle of the nozzle and a compensation assembly used for optimizing the adjustment amount of the inclination angle of the nozzle, and the adjusting assembly comprises a wind indicator which is rotationally installed at the top of the supporting frame through a movable shaft and used for determining the wind direction around a construction site; one end of the guide rod penetrates through the wind indicator in a sliding manner; the power sliding block is fixed at the other end of the guide rod, moves under the driving of wind power after determining the wind direction, and provides power for changing the inclination angle of the nozzle; the angle of the spray head is dynamically adjusted to adapt to different wind power conditions, it can be ensured that water mist more effectively covers a dust raising source, and therefore the dust falling effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of spraying dust removal, and in particular to a dust removal spraying device and method for road asphalt construction. Background Art

[0002] During municipal road construction, such as road construction and construction site construction, a large amount of dust is often generated. This dust not only damages the environment, but also affects people's health. In particular, when urban road reconstruction or underground pipeline reconstruction requires construction in the city, spraying devices are often needed. Spraying devices can effectively reduce dust in the air and improve air quality. At present, the construction area is usually surrounded by fences, and the nozzles are fixed on the fences, and then water is sprayed to remove dust. However, there are often pedestrians and vehicles passing by around the fences. Under the blowing of the wind, these water mists often fall into the area outside the fences. Pedestrians and vehicles passing by are often sprayed, which not only leads to the loss of dust removal function and wastes water resources but also affects traffic safety.

[0003] For example, the dust removal enclosure for construction projects disclosed in Publication No. CN213132468U can moisten and trap dust, but the clean air blown out after trapping the dust expands the coverage of the water mist. If there is wind outside the current nozzle, the coverage direction of the water mist will be changed, causing it to spread outside the enclosure. The enclosure spray device disclosed in Publication No. CN215427968U also has this problem.

[0004] Therefore, a dust removal spraying device and method for road asphalt construction are proposed. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a dust removal spraying device and method for road asphalt construction, which solves the problems raised in the background art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A dust removal spraying device for road asphalt construction, comprising a base, a support frame mounted on top of the base, a mounting plate mounted in the support frame via a support shaft, and a nozzle fixed to the mounting plate, wherein the base is provided with an adjustment component for changing the nozzle tilt angle, a compensation component for optimizing the adjustment amount of the nozzle tilt angle, and a protective component for improving safety in use, wherein the adjustment component includes:

[0007] The wind vane is installed on the top of the support frame through a movable shaft to determine the wind direction around the construction site;

[0008] A guide rod, one end of which is slidably inserted into the weather vane;

[0009] The power slider is fixed to the other end of the guide rod. After determining the wind direction, it moves under the drive of the wind to provide power for changing the tilt angle of the nozzle.

[0010] The spring has one end fixed to the side wall of the guide rod and the other end fixed inside the wind vane, providing elastic force for the power slider to reset;

[0011] The top of the sliding rod slides against the bottom of the power slider, and under the drive of the power slider, it transmits the power required to change the tilt angle of the nozzle;

[0012] The adjusting rod is located below the sliding rod, and is driven by the sliding rod to drive the supporting shaft to flip and change the inclination angle of the nozzle.

[0013] Preferably, the adjustment assembly also includes: a limit rod, the bottom of which is fixed to the top of the sliding rod, assisting the sliding rod to reset to its initial position; a sliding ring, the top of which is fixed to the bottom of the sliding rod, and the middle part slides through the movable shaft and rotates with the movable shaft.

[0014] Preferably, the adjustment assembly also includes: a guide column, one end of which is slidably inserted into the sliding ring and moves as the sliding ring moves up and down; a support member, one end of which is fixed to the other end of the guide column and moves under the drive of the guide column; a guide rod, the bottom of which is fixed to the top of the support frame and the top slides out of the support member to limit the moving direction of the support member; an extrusion plate, which is fixed to the other end of the support member and drives the adjustment rod to move under the drive of the support member.

[0015] Preferably, the adjustment assembly also includes: a limit column, one end of which is fixed on the side wall of the adjustment rod to limit the moving direction of the adjustment rod; a guide plate, the bottom of which is fixed on the top of the support frame and has an arc groove on the surface; a rotating shaft, one end of which is fixed on the side wall of the adjustment rod and the other end of which is equipped with a baffle, the side wall of the baffle is fixed on one end of the support shaft, and the baffle is driven to rotate around the support shaft under the drive of the adjustment rod.

[0016] Preferably, the compensation component includes: an extension rod, one end of which is fixed to the side wall of the adjustment rod; a buffer rope, one end of which is fixed to the top of the extension rod; a moving rod, the bottom of which is fixed to the other end of the buffer rope, and drives the extension rod to move under the action of external force; and a support frame, which is movably connected to the moving rod to provide support for the moving rod.

[0017] Preferably, the compensation component also includes: a transfer box, the bottom of which is connected to a water inlet pipe, the side wall of which is connected to a water supply pipe, and the other end of the water supply pipe is connected to the water inlet end of the nozzle; a buffer rope 2, one end of which is fixed to the bottom of the moving rod; a power rod, the top of which is fixed to the other end of the buffer rope 2, and the top slides out from the top of the transfer box, and drives the moving rod to flip around the support frame as the axis under the action of external force; a floating plate, the top of which is fixed to the bottom of the power rod, and changes its height under the change of water pressure to drive the power rod to move.

[0018] Preferably, the protective assembly includes: a push plate, one end of which is fixed on the side wall of the power slider and the other end is provided with a slope; a sliding plate, one end of which slides against the slope of the other end of the push plate and moves upward under the drive of the push plate; and a protective plate, the bottom of which is fixed to the other end of the sliding plate.

[0019] Preferably, the protective assembly also includes: a positioning column, the bottom of which is fixed to the top of the support frame, and the top slides out of the protective plate to limit the moving direction of the protective plate; a fixed block, the bottom of which is fixed to the top of the protective plate; a fixed plate, one end of which is fixed to the side wall of the movable shaft, and the bottom is provided with a fixing hole that is compatible with the fixed block.

[0020] The present invention also provides a method for adjusting a dust removal spraying device used in road asphalt construction, comprising the following steps:

[0021] S1. Install the nozzle on the fence around the asphalt construction site through the base;

[0022] S2. Determine the wind direction at the enclosure through the wind vane and drive the power slider to move under the drive of the wind;

[0023] S3, the power slider drives the sliding rod to move, changing the position of the adjustment rod, thereby driving the support shaft to drive the mounting plate to rotate, changing the inclination angle of the nozzle;

[0024] S4. During the process of changing the nozzle tilt angle, the compensation component is used to make compensation adjustments according to the water pressure;

[0025] S5. In bad weather, the movable shaft is limited by the protective component.

[0026] Preferably, the adjustment range of the nozzle tilt angle is between 0-45°.

[0027] The present invention provides a dust removal spraying device and method for road asphalt construction. Compared with the existing technology, it has the following advantages:

[0028] (1) The dust removal spraying device and method for road asphalt construction can ensure that the water mist covers the dust source more effectively by dynamically adjusting the angle of the nozzle to adapt to different wind conditions, thereby improving the dust reduction effect. When the wind is strong, spraying the nozzle toward the ground can reduce the water mist being blown away by the wind, so that more water mist can act directly on the ground and materials, suppressing dust flying, and ensuring that the water mist acts accurately on the area where dust reduction is required, rather than being wasted in unnecessary places. This not only improves the efficiency of water resource use, but also reduces construction costs, prevents water mist from accidentally falling into the sight of pedestrians or drivers, and can avoid safety hazards caused by this, such as slipping, obstructed vision, and other problems, thereby ensuring public safety.

[0029] (2) The dust removal spraying device and method for road asphalt construction has a higher water flow speed and a longer range when the water pressure is high. By tilting the nozzle downward at high pressure, the water mist landing point can be effectively controlled to concentrate it in the dust-raising area, thereby improving the dust reduction efficiency and reducing the "upward" trend of the water mist, thereby preventing it from falling on pedestrians, vehicles or the surrounding environment, improving environmental protection and safety. This dual adjustment mechanism (wind power + water pressure) enables the water spray dust removal system to have stronger environmental adaptability, maintain stable and efficient dust removal performance, and ensure that the best dust removal effect can be achieved in the most economical way in various complex environments. It is especially suitable for urban central areas, sensitive areas or engineering projects with high standards of environmental protection requirements.

[0030] (3) The dust removal spraying device and method for road asphalt construction is used in severe weather such as strong winds and heavy rains, where the wind speed changes dramatically and unpredictably, which may cause the wind vane to rotate frequently and cause the nozzle angle to change continuously. The protective component can avoid misoperation caused by extreme weather by locking the wind vane, ensuring that the whole is in a stable state, reducing unnecessary mechanical activities, thereby extending the service life of the nozzle and related components, and preventing equipment failure due to external force impact. When the nozzle system needs to be inspected, cleaned or repaired, the fixed wind vane can provide a stable environment to avoid interference with the maintenance personnel's operation due to wind influence. It is particularly suitable for road construction projects in complex urban environments.

[0031] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 Another perspective view of the overall structure of the present invention;

[0034] Figure 3 This is a structural diagram of the position of the push plate of the present invention;

[0035] Figure 4 This is a diagram showing the internal structure of the transfer box of the present invention;

[0036] Figure 5 This is a positional structural diagram of the power slider of the present invention;

[0037] Figure 6 This is a structural diagram of the position of the sliding rod of the present invention;

[0038] Figure 7Schematic diagram of the disassembled state of the limit rod of the present invention;

[0039] Figure 8 This is a schematic diagram of the guide column of the present invention in an exploded state;

[0040] Figure 9 Schematic diagram of the decomposed state of the limiting column of the present invention;

[0041] Figure 10 This is a positional structural diagram of the support frame of the present invention;

[0042] Figure 11 It is a side sectional view of the transfer box of the present invention;

[0043] Figure 12 This is a structural diagram of the position of the floating plate of the present invention;

[0044] Figure 13 This is a structural diagram of the position of the protective component of the present invention.

[0045] In the figure: 1. Base; 11. Support frame; 12. Nozzle; 13. Movable shaft; 14. Wind vane; 15. Mounting plate; 16. Water inlet pipe; 17. Transfer box; 18. Water pipe; 2. Guide rod; 21. Power slider; 22. Spring; 23. Limit rod; 24. Sliding rod; 25. Sliding ring; 26. Guide column; 27. Support member; 28. Guide rod; 29. ​​Extrusion plate; 210. Adjustment rod; 211. Limit column; 212. Guide plate; 213. Rotating shaft; 214. Support shaft; 3. Extension rod; 31. Buffer rope 1; 32. Support frame; 33. Moving rod; 34. Buffer rope 2; 35. Power rod; 36. Floating plate; 37. Positioning rod; 4. Push plate; 41. Sliding plate; 42. Protective plate; 43. Positioning column; 44. Fixed block; 45. Fixed plate. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0047] In the embodiments of the present application, any device or element referred to or implied must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise specifically specified.

[0048] See also Figures 1 to 9 , the present invention provides the following technical solutions:

[0049] Example 1: A dust removal spraying device for road asphalt construction, comprising a base 1, a support frame 11 mounted on top of the base 1, a mounting plate 15 movably mounted within the support frame 11 via a support shaft 214, and a nozzle 12 fixedly mounted on the mounting plate 15. The bottom of a transfer box 17 is connected to a water inlet pipe 16, and a water pipe 18 is connected to the side wall of the transfer box 17. The other end of the water pipe 18 is connected to the water inlet end of the nozzle 12. The bottom of a wind vane 14 is rotatably mounted on the top of the support frame 11 via a movable shaft 13. The wind vane 14 is used to determine the wind direction around the construction site.

[0050] The base 1 is provided with an adjustment component for changing the tilt angle of the nozzle 12, a compensation component for optimizing the adjustment amount of the tilt angle of the nozzle 12, and a protection component for improving the safety of use. The adjustment component includes: a guide rod 2, a power slider 21, a spring 22, a limit rod 23, a sliding rod 24, a sliding ring 25, a guide column 26, a support 27, a guide rod 28, an extrusion plate 29, an adjustment rod 210, a limit column 211, a guide plate 212, and a rotating shaft 213;

[0051] One end of the guide rod 2 is slidably installed in the wind vane 14, and the side wall of the power slider 21 is fixedly installed on the other end of the guide rod 2. After determining the wind direction, the power slider 21 moves under the drive of the wind. The power slider 21 is used to provide power for changing the inclination angle of the nozzle 12. One end of the spring 22 is fixedly installed on the side wall of the guide rod 2, and the other end of the spring 22 is fixedly installed in the wind vane 14. The spring 22 is used to provide elastic force for resetting the power slider 21. The bottom of the limit rod 23 is fixedly installed on the top of the sliding rod 24. The limit rod 23 is used to assist the sliding rod 24 to return to its initial position. The top of the sliding rod 24 slides against the power slider At the bottom of the block 21, the sliding rod 24 transmits the power required to change the inclination angle of the nozzle 12 under the drive of the power slider 21. The top of the sliding ring 25 is fixedly installed at the bottom of the sliding rod 24, and the middle part of the sliding ring 25 is slidably penetrated in the movable shaft 13. The sliding ring 25 can rotate with the rotation of the movable shaft 13. One end of the guide column 26 is slidably penetrated in the sliding ring 25. The end of the guide column 26 located in the sliding ring 25 is approximately T-shaped. The guide column 26 can move up and down with the sliding ring 25. One end of the support member 27 is fixedly installed on the other end of the guide column 26. The support member 27 can move under the drive of the guide column 26.

[0052] The bottom of the guide rod 28 is fixedly mounted on the top of the support frame 11, and the top of the guide rod 28 slides out from the support member 27. The guide rod 28 is used to limit the moving direction of the support member 27. One end of the extrusion plate 29 is fixedly mounted on the other end of the support member 27. The extrusion plate 29 can drive the adjustment rod 210 to move under the drive of the support member 27. The adjustment rod 210 is located below the sliding rod 24. Under the indirect drive of the sliding rod 24, the support shaft 214 is driven to flip and change the inclination angle of the nozzle 12. One end of the limit column 211 is fixedly mounted on the side wall of the adjustment rod 210 The limiting column 211 is used to limit the moving direction of the adjusting rod 210. The bottom of the guide plate 212 is fixedly mounted on the top of the support frame 11, and an arc groove is opened on the surface of the guide plate 212. The other end of the limiting column 211 slides through the arc groove. One end of the rotating shaft 213 is fixedly mounted on the side wall of the adjusting rod 210, and the other end of the rotating shaft 213 is movably mounted on the side wall of the baffle through a bearing. The side wall of the baffle is fixedly mounted on one end of the support shaft 214. The rotating shaft 213 drives the baffle to rotate with the support shaft 214 as the axis under the drive of the adjusting rod 210.

[0053] During use, in urban road construction and maintenance projects, such as underground pipeline reconstruction, rail transit construction, ground drilling, etc., during construction, fences will be equipped to enclose the construction area, and the base 1 will be installed on the fence beside the construction road. The base 1 provides support to the support frame 11, the support frame 11 provides support to the support shaft 214, the support shaft 214 provides support to the mounting plate 15, and the mounting plate 15 provides support to the nozzle 12. At the same time, the base 1 provides support to the transfer box 17, so that the nozzle 12 is installed on the fence, and water is transported to the transfer box 17 through the water inlet pipe 16. Then, the water is transported from the transfer box 17 through the water pipe 18 to the nozzle 12 for spraying and atomizing. The dust generated during construction in the construction area within the fence is subjected to dust reduction treatment by the sprayed water mist, so as to reduce the spread of dust outward and avoid affecting the surrounding traffic and residents.

[0054] The support frame 11 provides support for the movable shaft 13, and the movable shaft 13 provides support for the wind vane 14. After the base 1 is installed on the enclosure, the wind vane 14 is used to detect the wind blowing in the area where the enclosure is located. After the wind vane 14 rotates to the position corresponding to the wind direction, the strength of the wind and the area of ​​contact between the power slider 21 and the wind will directly determine the moving distance of the power slider 21. Through the sliding fit between the guide rod 2 and the wind vane 14, the guide rod 2 can only move in a straight line along the wind vane under the action of external force. It is necessary to change the shape of the power slider 21 to increase the contact area between the power slider 21 and the wind;

[0055] When the wind force on the power slider 21 is greater than the elastic force of the spring 22, the torsion spring, the friction and gravity between the various parts, the guide rod 2 can drive the power slider 21 to move, and the power slider 21 squeezes the sliding rod 24 to move, and the sliding rod 24 drives the sliding ring 25 to move downward. At the same time, the sliding ring 25 and the movable shaft 13 slide together, so that the sliding ring 25 can slide up and down along the movable shaft 13 while also rotating around the movable shaft 13 as the axis. The sliding ring 25 and the guide post 26 slide together, so that when the sliding ring 25 rotates around the movable shaft 13 as the axis, the guide post 26 can always contact the sliding ring 25. When the sliding ring 25 moves downward under the drive of the sliding rod 24, it will drive the guide post 26 to move downward synchronously, and the guide post 26 drives the support member 27 to move. The support member 27 slides with the guide rod 28, so that the support member 27 can only move linearly along the guide rod 28. The adjusting rod 210 is pressed against the guide plate 212 and the adjusting rod 211 is pressed against the guide plate 212, so that the adjusting rod 210 can move in an arc shape only. The adjusting rod 210 drives the rotating shaft 213 to move synchronously. The rotating shaft 213 drives the baffle at one end of the support shaft 214 to move, so that the baffle can in turn drive the support shaft 214 to rotate around itself as the axis, so that the support shaft 214 drives the mounting plate 15 to rotate around the support shaft 214 as the axis, and the mounting plate 15 drives the nozzle 12 to rotate synchronously, thereby changing the inclination angle of the nozzle 12. By changing the inclination angle of the nozzle 12 according to the wind force, the greater the wind force, the more the nozzle 12 is directed towards the ground, and the smaller the wind force, the closer the nozzle 12 is to the ground. Figure 1 The initial position shown is to prevent the water sprayed by the nozzle 12 from drifting from the enclosure area to the outside of the enclosure area under the influence of wind and falling on pedestrians passing by, which not only reduces the dust reduction effect but also affects surrounding traffic and residents;

[0056] When the wind force on the power slider 21 is smaller than the elastic force of the spring 22, the torsion spring, the friction between the parts, and the gravity, the power slider 21 moves to the left under the action of the spring 22. Figure 1 The initial position shown is reset, and at the same time, the power slider 21 drives the limit rod 23 to move synchronously, and the limit rod 23 drives the sliding rod 24 to move, so that the sliding rod 24 can drive the sliding ring 25, the guide column 26, and the support member 27 to reset synchronously to Figure 1 As shown in the initial position, the squeeze plate 29 is lost, the support shaft 214 loses the driving force and is also reset to the Figure 1 Initial position shown.

[0057] See also Figure 4 、 Figures 10 to 12 , the present invention provides the following technical solutions:

[0058] Embodiment 2: This embodiment differs from Embodiment 1 in that: a compensation component for optimizing the tilt angle adjustment of the nozzle 12 is provided on the base 1, and the compensation component includes: an extension rod 3, a buffer rope 1 31, a support frame 32, a moving rod 33, a buffer rope 2 34, a power rod 35, a floating plate 36, and a positioning rod 37;

[0059] One end of the extension rod 3 is fixedly mounted on the side wall of the adjustment rod 210, one end of the buffer rope 1 31 is fixedly mounted on the top of the extension rod 3, the axis of the support frame 32 is movably connected to the moving rod 33, the support frame 32 is used to provide support for the moving rod 33, the bottom of the moving rod 33 is fixedly connected to the other end of the buffer rope 1 31, and the moving rod 33 can drive the extension rod 3 to move under the action of external force, one end of the buffer rope 2 34 is fixedly mounted on the bottom of the moving rod 33, and the top of the power rod 35 is connected to the other end of the buffer rope 2 34 The ends are fixedly connected, the top of the power rod 35 slides out from the top of the transfer box 17, and the power rod 35 can drive the moving rod 33 to flip with the support frame 32 as the axis under the action of external force. The top of the floating plate 36 is fixedly connected to the bottom of the power rod 35, and the floating plate 36 can change its height under the change of water pressure to drive the power rod 35 to move. Both ends of the positioning rod 37 are fixedly mounted on the inner wall of the transfer box 17, and one end of the positioning rod 37 is slidably penetrated in the floating plate 36. The positioning rod 37 is used to limit the moving direction of the floating plate 36.

[0060] When in use, an extension rod 3 is installed at the adjustment rod 210, a buffer rope 31 is installed on the extension rod 3, and a mobile rod 33 is installed at the other end of the buffer rope 31. The transfer box 17 provides support force to the support frame 32, and the support frame 32 provides support force to the mobile rod 33. At the same time, the mobile rod 33 can be turned around the support frame 32 as the axis. When the nozzle 12 is in use and the inclination angle changes with the wind force;

[0061] When the wind is strong, the expansion rod 3 moves with the movement of the adjustment rod 210, and the buffer rope 31 mainly serves as a connection and buffer between the expansion rod 3 and the moving rod 33, so that the movement of the expansion rod 3 will cause the buffer rope 31 to move from the expansion rod 3 to the moving rod 33. Figure 11 The initial relaxed state shown becomes taut, thereby driving the moving rod 33 to move. At this time, the magnitude of the water pressure further affects the coverage of the water mist sprayed by the nozzle 12;

[0062] After water enters the transfer box 17 through the water inlet pipe 16, the buoyancy will drive the float plate 36 to move upward. The sliding cooperation between the float plate 36 and the positioning rod 37 makes the float plate 36 only able to move linearly along the positioning rod 37 during movement. The float plate 36 drives the power rod 35 to move synchronously. The power rod 35 pushes one end of the moving rod 33, causing the moving rod 33 to flip around the support frame 32 as the axis, so that the end of the moving rod 33 close to the extension rod 3 pushes the extension rod 3 downward, causing the extension rod 3 to drive the adjustment rod 210 to move, thereby controlling the sprinkler head 12 to flip toward the side where the ground is located, thereby compensating for the tilt adjustment of the sprinkler head 12;

[0063] When the wind is strong, the tilt adjustment of the nozzle 12 mainly depends on the wind force, and is compensated by the water pressure of the water supply;

[0064] When the wind is weak, the extension rod 3 is in the Figure 11 As shown in the position, if the water pressure of the water inlet pipe 16 entering the transfer box 17 is large, the moving rod 33 will move from Figure 11 The expansion rod 3 is pressed downwards in the position shown, thereby driving the adjustment rod 210 to move downwards and adjust the inclination angle of the nozzle 12. If the water pressure entering the transfer box 17 through the water inlet pipe 16 is small, the adjustment range is small or maintained. Figure 11 The position shown does not move. Figure 11 The position shown is the state when there is no water inside the transfer box 17;

[0065] Example: Assume that on a certain day the wind is strong and the water supply pump is operating at peak load. At this time:

[0066] The adjustment component tilts the nozzle downward according to the wind force;

[0067] The compensating assembly tilts further downward in response to the increase in water pressure;

[0068] The result is: the nozzle angle is lower than usual, the water mist is concentrated in the air close to the ground, effectively suppressing dust, and almost no water mist escapes.

[0069] See also Figure 13 , the present invention provides the following technical solutions:

[0070] Embodiment 3: This embodiment differs from Embodiment 2 in that: a protective assembly for improving safety is provided on the base 1, the protective assembly including: a push plate 4, a sliding plate 41, a protective plate 42, a positioning column 43, a fixing block 44, and a fixing plate 45;

[0071] One end of the push plate 4 is fixedly mounted on the side wall of the power slider 21, and the other end of the push plate 4 is provided with a slope. One end of the sliding plate 41 slides against the slope of the other end of the push plate 4. The sliding plate 41 can move up under the drive of the push plate 4. The bottom of the protective plate 42 is fixedly connected to the other end of the sliding plate 41. The bottom of the positioning column 43 is fixedly mounted on the top of the support frame 11, and the top of the positioning column 43 slides out of the protective plate 42. The positioning column 43 is used to limit the moving direction of the protective plate 42. The bottom of the fixed block 44 is fixedly mounted on the top of the protective plate 42. One end of the fixed plate 45 is fixedly mounted on the side wall of the movable shaft 13. The bottom of the fixed plate 45 is provided with a fixing hole that is compatible with the fixed block 44.

[0072] During use, when the wind-driven power slider 21 is used to move to adjust the inclination angle of the nozzle 12, if the construction site is located in a bad weather such as a short thunderstorm and strong wind, and the construction site is not working, the power slider 21 can also synchronously drive the push plate 4 to move when it is driven by the wind. The push plate 4 drives the sliding plate 41 to move upward, and the sliding plate 41 drives the protective plate 42 to move upward. The protective plate 42 slides with the positioning column 43, so that the protective plate 42 drives the fixing block 44 to move upward synchronously, so that the fixing block 44 is stuck in the fixing plate 45, thereby fixing the movable shaft 13. At the same time, the nozzle 12 is in a downward tilted state until the bad weather is over, and then it is reset under the action of the spring 22;

[0073] In another embodiment different from the aforementioned embodiment, the positions of the protective plate 42 and the fixed plate 45 are swapped, so that the protective plate 42 is at the top and the fixed plate 45 is at the bottom, and the driving mode of the protective plate 42 is changed to the water pressure in the transfer box 17. When the construction site is in bad weather, the construction site is shut down and water is not supplied to the transfer box 17. At this time, the water pressure in the transfer box 17 is at its lowest state, and the protective plate 42 loses its upward supporting force, thereby falling and driving the fixed block 44 to be stuck in the fixed plate 45. When the construction site resumes work, water is supplied to the transfer box 17 again. At this time, the water pressure in the transfer box 17 begins to increase, and the protective plate 42 moves upward, driving the fixed block 44 to move out of the fixed plate 45.

[0074] Furthermore, the same setting is made for the position of the power slider 21. Similarly, the water pressure in the transfer box 17 determines whether the power slider 21 can slide along the wind vane 14, thereby driving the adjustment component to operate.

[0075] Example: Suppose a strong wind starts to blow in the evening, but the construction site is closed:

[0076] At this time, the protection component automatically starts and locks the wind vane;

[0077] The sprinkler stops spraying water and no longer responds to changes in wind speed;

[0078] It not only saves water and electricity resources, but also prevents the nozzles from being damaged by frequent operation due to strong winds;

[0079] Before starting work the next day, water supply to the transfer box is restored, the lock is automatically released, and normal operation is resumed.

[0080] The embodiment of the present invention further provides a method for adjusting a dust removal spraying device used in road asphalt construction, comprising the following steps:

[0081] S1. Install the nozzle 12 on the fence around the road asphalt construction site through the base 1;

[0082] S2, determine the wind direction at the enclosure through the wind vane 14, and drive the power slider 21 to move under the drive of the wind;

[0083] S3, the power slider 21 drives the sliding rod 24 to move, changing the position of the adjustment rod 210, thereby driving the support shaft 214 to drive the mounting plate 15 to rotate, changing the inclination angle of the nozzle 12;

[0084] S4. During the process of changing the tilt angle of the nozzle 12, the compensation component is used to make compensation adjustments according to the water pressure;

[0085] S5. In bad weather, the movable shaft 13 is limited by the protective component.

[0086] The adjustment range of the tilt angle of the nozzle 12 is between 0-45 degrees.

[0087] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0088] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0089] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A dust removal spraying device for road asphalt construction, comprising a base (1), a support frame (11) mounted on the top of the base (1), a mounting plate (15) mounted in the support frame (11) via a support shaft (214), and a spray head (12) fixed to the mounting plate (15), characterized in that: The base (1) is provided with an adjustment component for changing the tilt angle of the nozzle (12), a compensation component for optimizing the adjustment amount of the tilt angle of the nozzle (12), and a protection component for improving the safety of use, wherein the adjustment component includes: A wind vane (14) is rotatably mounted on the top of the support frame (11) via a movable shaft (13) to determine the wind direction around the construction site; A guide rod (2), one end of which is slidably inserted into the wind vane (14); A power slider (21) is fixed to the other end of the guide rod (2), and moves under the drive of the wind after determining the wind direction, thereby providing power for changing the tilt angle of the nozzle (12); A spring (22), one end of which is fixed to the side wall of the guide rod (2) and the other end of which is fixed in the wind vane (14), provides elastic force for resetting the power slider (21); The top of the sliding rod (24) slides against the bottom of the power slider (21) and transmits the power required to change the tilt angle of the nozzle (12) under the drive of the power slider (21); The regulating rod (210) is located below the sliding rod (24) and drives the supporting shaft (214) to flip and change the inclination angle of the nozzle (12) under the driving of the sliding rod (24).

2. A dust removal spraying device for road asphalt construction according to claim 1, characterized in that: The adjustment component also includes: A limiting rod (23), the bottom of which is fixed to the top of the sliding rod (24), assisting the sliding rod (24) to return to its initial position; The top of the sliding ring (25) is fixed to the bottom of the sliding rod (24), and the middle part is slidably penetrated in the movable shaft (13) and rotates with the rotation of the movable shaft (13).

3. The dust removal spraying device for road asphalt construction according to claim 2, characterized in that: The adjustment component also includes: A guide post (26) has one end which is slidably inserted into the sliding ring (25) and moves as the sliding ring (25) moves up and down; A support member (27) having one end fixed to the other end of the guide post (26) and moving under the drive of the guide post (26); A guide rod (28), the bottom of which is fixed to the top of the support frame (11), and the top of which slides out from the support member (27) to limit the moving direction of the support member (27); The extrusion plate (29) is fixed on the other end of the support member (27) and drives the adjustment rod (210) to move under the driving of the support member (27).

4. The dust removal spraying device for road asphalt construction according to claim 1, characterized in that: The adjustment component also includes: A limiting column (211), one end of which is fixed on the side wall of the adjusting rod (210) to limit the moving direction of the adjusting rod (210); The guide plate (212) has a bottom portion fixed to the top portion of the support frame (11) and an arc-shaped groove formed on its surface; The rotating shaft (213) has one end fixed on the side wall of the adjusting rod (210) and a baffle installed on the other end. The side wall of the baffle is fixed on one end of the supporting shaft (214). Under the drive of the adjusting rod (210), the baffle is driven to rotate around the supporting shaft (214).

5. The dust removal spraying device for road asphalt construction according to claim 1, characterized in that: The compensation component includes: An expansion rod (3), one end of which is fixed to the side wall of the adjustment rod (210); A buffer rope (31), one end of which is fixed to the top of the extension rod (3); The moving rod (33) has its bottom fixed to the other end of the buffer rope (31) and drives the expansion rod (3) to move under the action of external force; The support frame (32) is movably connected to the moving rod (33) to provide support for the moving rod (33).

6. The dust removal spraying device for road asphalt construction according to claim 5, characterized in that: The compensation component also includes: The transfer box (17) is connected to a water inlet pipe (16) at the bottom and a water delivery pipe (18) on the side wall. The other end of the water delivery pipe (18) is connected to the water inlet end of the nozzle (12); A second buffer rope (34), one end of which is fixed to the bottom of the moving rod (33); The power rod (35) is fixed at its top to the other end of the second buffer rope (34), and its top slides out from the top of the transfer box (17), and drives the moving rod (33) to turn around the support frame (32) under the action of external force; The top of the floating plate (36) is fixed to the bottom of the power rod (35), and changes its height under the change of water pressure, thereby driving the power rod (35) to move.

7. The dust removal spraying device for road asphalt construction according to claim 1, characterized in that: The protection component includes: A push plate (4), one end of which is fixed to the side wall of the power slider (21) and the other end of which is provided with an inclined surface; A sliding plate (41) has one end that slides against the inclined surface of the other end of the push plate (4) and moves upward under the drive of the push plate (4); The bottom of the protective plate (42) is fixed to the other end of the sliding plate (41).

8. The dust removal spraying device for road asphalt construction according to claim 1, characterized in that: The protection component also includes: A positioning column (43), the bottom of which is fixed to the top of the support frame (11), and the top of which slides out of the protective plate (42) to limit the moving direction of the protective plate (42); A fixing block (44), the bottom of which is fixed to the top of the protective plate (42); One end of the fixing plate (45) is fixed on the side wall of the movable shaft (13), and the bottom is provided with a fixing hole adapted to the fixing block (44).

9. A method for adjusting a dust removal spraying device for road asphalt construction, applicable to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Installing the nozzle (12) on the fence around the road asphalt construction site through the base (1); S2, determining the wind direction at the enclosure by means of a wind vane (14), and driving the power slider (21) to move under the force of the wind; S3, driving the sliding rod (24) to move by the power slider (21), changing the position of the adjustment rod (210), thereby driving the support shaft (214) to drive the mounting plate (15) to rotate, thereby changing the inclination angle of the nozzle (12); S4, in the process of changing the tilt angle of the nozzle (12), compensation adjustment is performed according to the water pressure through the compensation component; S5. In bad weather, the movable shaft (13) is limited by the protective component.

10. The method for adjusting a dust removal spraying device for road asphalt construction according to claim 9, characterized in that: The adjustment range of the tilt angle of the nozzle (12) is between 0-45 degrees.

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