Road marking equipment and construction method for construction engineering

Abstract

The present invention relates to the technical field of road marking, and in particular to a road marking device and construction method for construction engineering. It includes a vehicle body, a hot melt kettle is installed on the vehicle body, and a detection mechanism includes a mounting frame, a mounting frame is fixedly connected to one side of the vehicle body, an I-shaped tube is fixedly connected to the mounting frame, an air pump is fixedly installed on the top of the inner wall of the I-shaped tube, a plurality of evenly distributed partitions are slidably connected to the outer wall of the I-shaped tube, and a plurality of evenly distributed adjustment plates are slidably connected to one side of the I-shaped tube. Through the design of the detection mechanism, the present invention can increase the flow rate of the airflow through the special shape of the I-shaped tube, and can guide the airflow into between the I-shaped tube and the front side of the inner wall of the mounting frame through the air guide plate.

Description

Technical Field

[0001] The invention relates to the technical field of road marking, and in particular to road marking equipment and a construction method for construction engineering. Background Art

[0002] The working principle of the thermoplastic road marking machine is to heat the thermoplastic paint to a molten state, and then spray it evenly on the road surface through a specific marking device. After the paint cools down, a clear and lasting road marking is formed.

[0003] When spraying new road markings or maintaining old road markings, it is necessary to ensure the flatness of the markings to improve the aesthetics of the markings and the flatness of the road surface. The road marking equipment in the prior art cannot adjust the spraying amount of hot-melt paint according to the cracks or potholes on the road surface when in use, resulting in the cracks or potholes still existing after the hot-melt paint is sprayed. When the car drives over the cracks or potholes, it will produce a stronger sense of bumps, and the final markings are not beautiful. Generally, before road marking, the road surface needs to be cleaned to prevent the hot-melt paint from having insufficient adhesion to the road surface when spraying. However, in the process of road marking, it is impossible to ensure that the surrounding environment of the site is clean, and there will inevitably be debris or dust on the road surface, resulting in insufficient adhesion between the hot-melt paint and the road surface when spraying. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a road marking device and a construction method for construction engineering.

[0005] The technical implementation scheme of the present invention is: a road marking equipment for construction engineering, including a vehicle body, a hot melt kettle installed on the vehicle body, and a detection mechanism, the detection mechanism includes a mounting frame, one side of the vehicle body is fixedly connected to the mounting frame, an I-shaped tube is fixedly connected in the mounting frame, an air pump is fixedly installed on the top of the inner wall of the I-shaped tube, the outer wall of the I-shaped tube is slidably connected to a plurality of evenly distributed partitions, one side of the I-shaped tube is slidably connected to a plurality of evenly distributed adjustment plates, both sides of the plurality of adjustment plates are symmetrically provided with grooves, the grooves are slidably connected to sliding plates, and the plurality of adjustment plates are The front sides of the section plate and the sliding plate are both fitted with the front side of the inner wall of the mounting frame, the sliding plate is slidably connected to the partition, the tops of several adjustment plates are slidably connected with T-shaped rods, several evenly distributed spray pipes are slidably connected in the mounting frame, several of the spray pipes are connected to the hot melt kettle through hoses, one side of several spray pipes is provided with a through hole, a throttle plate is slidably connected in the through hole, a compression spring is arranged between the throttle plate and the spray pipe, one side of the throttle plate is fixedly connected with a connecting frame used in conjunction with the T-shaped rod, and an adjustment mechanism is arranged in the mounting frame.

[0006] In a preferred embodiment of the present invention, the detection mechanism further includes a wind deflector, and the wind deflector is fixedly connected to the inner wall of the mounting frame.

[0007] In a preferred embodiment of the present invention, the adjusting mechanism includes a variable pitch screw. One side of the mounting frame is rotatably connected through the variable pitch screw. One side of each of several partitions is fixedly connected with a guide shaft, and the guide shaft is clamped into the thread of the variable pitch screw and slides therein. One end of the variable pitch screw is fixedly connected with a connecting plate. One side of the connecting plate is slidably connected through an elastic limit pin. A plurality of uniformly distributed limit holes are formed in one side of the mounting frame, and the elastic limit pin is used in cooperation with the plurality of limit holes.

[0008] In a preferred embodiment of the present invention, the adjusting mechanism further includes a wind shield. The wind shield is fixedly connected to one side of each of two partitions away from each other. The wind shield is slidably connected to the mounting frame through it, and a ventilation hole is formed through the top of the wind shield.

[0009] In a preferred embodiment of the present invention, the adjusting mechanism further includes an I-shaped plate. The outer wall of the T-shaped rod is fixedly sleeved with the I-shaped plate. The I-shaped plate is symmetrically hinged with L-shaped rods, and one end of the L-shaped rod is rotatably connected to the sliding plate.

[0010] In a preferred embodiment of the present invention, a cleaning mechanism is further included. The cleaning mechanism includes a first air duct. One side of the mounting frame is communicated with the first air duct. A U-shaped frame is fixedly connected to the bottom of the vehicle body. Convex disks are symmetrically fixedly connected in the U-shaped frame. Ventilation grooves are formed through the outer wall of the convex disks. The first air duct is communicated with the ventilation grooves. An impeller is rotatably connected in the convex disks. A cleaning brush is fixedly connected to the bottom of the impeller. A blowing pipe is communicated with the outer wall of the first air duct. A wind guiding block is fixedly connected to the inner wall of the blowing pipe.

[0011] In a preferred embodiment of the present invention, a cooling mechanism is further included. The cooling mechanism includes a second air duct. One side of the mounting frame is communicated with the second air duct. One end of the second air duct is communicated with a connection box. One side of the connection box is communicated with a third air duct. One end of the third air duct is communicated with a cooling pipe.

[0012] In a preferred embodiment of the present invention, the cooling mechanism further includes a telescopic rod. A support plate is fixedly sleeved on the outer wall of the third air duct. The telescopic rod is fixedly connected to the support plate, and the support plate is fixedly connected to the mounting frame. The telescopic end of the telescopic rod is fixedly connected with a lifting plate, and the lifting plate is clamped into the connection box and slides therein.

[0013] In a preferred embodiment of the present invention, the cooling mechanism further includes a pressure relief valve. The pressure relief valve is communicated with the outer wall of the second air duct.

[0014] In a preferred embodiment of the present invention, a construction method of a road marking device for construction engineering includes the following steps: S1: starting the air pump to generate a downward airflow in the I-shaped tube, and causing the airflow to produce a Bernoulli effect, thereby increasing the airflow velocity; the air guide plate guides the airflow, so that the airflow affects the plurality of the adjustment plates and the sliding plate; S2: After a number of the adjustment plates and the sliding plates are affected, the T-shaped rod squeezes the connecting frame, thereby adjusting the position of the throttle plate; S3: Pull the elastic limiting pin to a side away from the mounting frame and rotate the variable pitch screw to adjust the marking width; S4: The airflow enters the first air duct and the second air duct respectively, so as to clean the road surface and solidify the hot melt coating quickly.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The present invention can increase the flow rate of the airflow through the special shape of the I-shaped tube through the design of the detection mechanism, and can guide the airflow into the space between the I-shaped tube and the front side of the inner wall of the mounting frame through the air guide plate. The airflow affects a plurality of adjustment plates and sliding plates, and can adjust the position of the throttle plate, thereby adjusting the internal flow of the four spray tubes according to the cracks or potholes on the road surface, so that the hot-melt paint sprayed on the road surface is smoother. Through the design of the partition, the four adjustment plates and the sliding plate can be adjusted independently, further improving the accuracy of the detection.

[0016] 2. Through the design of the variable pitch screw, the present invention can keep the gaps between the five partitions consistent by rotating the variable pitch screw when the line width needs to be narrowed. Through the design of the I-shaped plate and the L-shaped rod, the position of the throttle plate can be adjusted synchronously when the gaps between the five partitions are changed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the detection mechanism of the present invention; Figure 3 It is a structural schematic diagram of the regulating mechanism of the present invention; Figure 4 This is a schematic diagram of the installation of the I-shaped plate of the present invention; Figure 5 It is a schematic diagram of the installation of the L-shaped rod of the present invention; Figure 6 It is a structural schematic diagram of the cleaning mechanism of the present invention; Figure 7 Schematic installation diagram at the air guiding block of the present invention; Figure 8 Schematic structural diagram of the cooling mechanism of the present invention.

[0018] Among them, the above-mentioned drawings include the following reference numerals: 1, vehicle body; 101, hot melt kettle; 201, mounting frame; 2011, I-shaped pipe; 202, air pump; 203, partition board; 204, adjusting plate; 205, sliding plate; 206, T-shaped rod; 207, spraying pipe; 208, throttle plate; 209, connecting frame; 301, air guiding plate; 401, variable pitch screw; 402, connecting plate; 403, elastic limit pin; 404, wind shielding plate; 501, I-shaped plate; 502, L-shaped rod; 601, first air guiding pipe; 602, C-shaped frame; 603, convex disk; 604, impeller; 605, cleaning brush; 701, purging pipe; 702, air guiding block; 801, second air guiding pipe; 802, connecting box; 803, third air guiding pipe; 804, cooling pipe; 901, telescopic rod; 902, lifting plate; 1001, pressure relief valve. Detailed implementation manners

[0019] Although the present invention may be described with respect to a specific application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those of ordinary skill in the art will recognize that terms such as "above", "below", "upward", "downward", etc. are used to describe the drawings and do not represent a limitation on the scope of the present invention defined by the appended claims. Any numerical labels such as "first" or "second" are merely illustrative and are not intended to limit the scope of the present invention in any way. Embodiment 1

[0020] A road marking device for construction engineering, such as Figure 1-Figure 4As shown, it includes a vehicle body 1, on which a hot melt kettle 101 is installed, and also includes a detection mechanism, which is used to detect cracks or potholes on the road surface. The detection mechanism includes a mounting frame 201, the mounting frame 201 is fixedly connected to the left side of the vehicle body 1, an I-shaped tube 2011 is fixedly connected inside the mounting frame 201, an air pump 202 is fixedly installed on the top of the inner wall of the I-shaped tube 2011, the outer wall of the I-shaped tube 2011 is horizontally slidably connected with five evenly distributed partitions 203, the front side of the I-shaped tube 2011 is slidably connected with four evenly distributed adjustment plates 204, the left and right sides of the adjustment plate 204 are symmetrically provided with grooves, and a sliding plate 205 is horizontally slidably connected in the groove, and the front sides of the four adjustment plates 204 and the sliding plate 205 are all in contact with the front side of the inner wall of the mounting frame 201. The sliding plate 205 is slidably connected to the front side of the I-shaped tube 2011, and is vertically slidably connected to the adjacent partition 203. The tops of the four adjustment plates 204 are slidably connected with T-shaped rods 206. Four evenly distributed spray tubes 207 are horizontally slidably connected in the mounting frame 201. The four spray tubes 207 are connected to the hot melt kettle 101 through hoses. Through holes are opened on the front sides of the four spray tubes 207. A throttle plate 208 is horizontally slidably connected in the through holes. When the throttle plate 208 moves, it can adjust the flow rate in the corresponding spray tube 207. A compression spring is arranged between the throttle plate 208 and the corresponding spray tube 207. A connecting frame 209 used in conjunction with the T-shaped rod 206 is fixedly connected to the front side of the throttle plate 208, and an adjustment mechanism is arranged in the mounting frame 201.

[0021] like Figure 2 As shown, the detection mechanism further includes an air guide plate 301 , the inner wall of the mounting frame 201 is fixedly connected with the air guide plate 301 , and the air guide plate 301 is used to guide the airflow between the front side of the inner wall of the mounting frame 201 and the mounting frame 201 .

[0022] like Figure 2 and Figure 3 As shown, the adjustment mechanism includes a variable pitch screw 401, and the left side of the mounting frame 201 is rotatably connected with the variable pitch screw 401, and the rear sides of the five partitions 203 are fixedly connected with guide shafts, which are inserted into the threads of the variable pitch screw 401 and slide therein. By rotating the variable pitch screw 401, the gap between the five partitions 203 can be changed, and one end of the variable pitch screw 401 is fixedly connected with a connecting plate 402, and one side of the connecting plate 402 is slidably connected with an elastic limit pin 403. A plurality of evenly distributed limit holes are opened on one side of the mounting frame 201, and the elastic limit pin 403 is used in conjunction with the plurality of limit holes. The elastic limit pin 403 can limit the variable pitch screw 401 by being inserted into the plurality of limit holes.

[0023] like Figure 2 and Figure 3As shown, the adjustment mechanism also includes a wind shield 404, and the bottom of the two farthest partitions 203 that are away from each other are fixed with a wind shield 404, the wind shield 404 is horizontally slidably connected to the mounting frame 201 through-type, and a ventilation hole is opened through-type at the top of the wind shield 404.

[0024] like Figure 4 and Figure 5 As shown, the adjustment mechanism also includes an I-shaped plate 501, and the outer wall of the T-shaped rod 206 is fixedly sleeved with the I-shaped plate 501. An L-shaped rod 502 is symmetrically hinged inside the I-shaped plate 501, and one end of the L-shaped rod 502 is rotatably connected to the sliding plate 205. When the sliding plate 205 moves, the T-shaped rod 206 can be driven to move through the L-shaped rod 502 and the I-shaped plate 501.

[0025] Initially, the distance between the five partitions 203 is at its maximum, and the distance between the four spray tubes 207 is at its maximum. At this time, the line formed by the hot-melt coating sprayed by the four spray tubes 207 is the widest. The air pump 202 is started to blow air from the I-shaped tube 2011 at high speed from top to bottom. When the airflow passes through the tapered section of the I-shaped tube 2011, the airflow begins to accelerate and focus. When the airflow reaches the narrow part of the I-shaped tube 2011, the airflow reaches the maximum speed and forms a low-pressure area due to the Bernoulli effect. When the airflow reaches the gradually expanding section of the I-shaped tube 2011, the pressure of the airflow is restored and blows toward the road surface. When the airflow contacts When the mounting frame 201 hits the road surface, the airflow is forced to change direction and flow in all directions. By causing the airflow to produce the Bernoulli effect, the velocity of the airflow can be enhanced. It is worth noting that the gap between the bottom of the mounting frame 201 and the road surface is small. After the airflow contacts the road surface, it will flow to the lower side of the four spray tubes 207 through the gap between the bottom of the mounting frame 201 and the road surface. The airflow flowing to the lower side of the four spray tubes 207 will not affect the hot melt coating sprayed by the four spray tubes 207. In addition, since there is a gap between the I-shaped tube 2011 and the front side of the inner wall of the mounting frame 201, the airflow will flow to the lower side of the I-shaped tube 2011 and the inner wall of the mounting frame 201. The airflow flows through the gap between the front sides of the walls. At this time, the airflow can be guided by the air guide plate 301, so that the airflow is lifted upward between the gap between the I-shaped tube 2011 and the mounting frame 201. The upwardly lifted airflow is divided by the five partitions 203 to form four independent airflows. The four independent airflows are lifted upward along the gaps between the five partitions 203. The adjustment plate 204 and the two adjacent sliding plates 205 are lifted upward under the influence of the airflow. The adjustment plate 204 drives the I-shaped plate 501 and the L-shaped rod 502 to be lifted upward through the T-shaped rod 206. After the T-shaped rod 206 is lifted upward, the inclined surface of the T-shaped rod 206 faces the adjacent The connecting frame 209 is squeezed, and the connecting frame 209 is forced to drive the throttle plate 208 to slide rearward, and the compression spring is forced to shrink. After the throttle plate 208 slides, it limits the flow rate of hot-melt paint in the adjacent spray tubes 207. When the road surface is flat, the rear sides of the four throttle plates 208 are on the same vertical plane, so that the amount of hot-melt paint sprayed from the four spray tubes 207 is the same, and then the vehicle body 1 is pushed to move, and the hot-melt kettle 101 is started. The hot-melt kettle 101 softens the hot-melt paint and allows the hot-melt paint to enter the four spray tubes 207 through the hose, so that the four spray tubes 207 spray hot-melt paint for marking.

[0026] When there are cracks or potholes on the road surface, taking two adjacent partitions 203 as an example, the cracks or potholes on the road surface are located between the two adjacent partitions 203. After the airflow contacts the cracks or potholes, it will cause the airflow to be lost, thereby reducing the rising airflow between the two adjacent partitions 203, and the airflow has a reduced effect on the adjustment plate 204 and the two sliding plates 205 between the two adjacent partitions 203. The adjustment plate 204 and the two adjacent sliding plates 205 drop slightly downward, thereby causing the T-shaped rod 206 to drop downward, reducing the squeezing force of the T-shaped rod 206 on the adjacent connecting frame 209, and slightly releasing the compression spring between the throttle plate 208 and the spray pipe 207. The throttle plate 208 slides forward, increasing the flow rate of the hot-melt paint in the corresponding spray tube 207. The amount of hot-melt paint sprayed out of the spray tube 207 increases, filling the cracks or potholes in the road surface, thereby making the final marked surface smooth, until the mounting frame 201 passes over the potholes or cracks in the road surface. The airflow no longer loses after contacting the smooth road surface, making the adjustment plate 204 and the two adjacent sliding plates 205 and the other adjustment plates 204 and sliding plates 205 in the same horizontal plane, thereby making the spraying amounts of the four spray tubes 207 consistent, thereby making it possible to adjust the spraying amount of the hot-melt paint according to the area of ​​the cracks or potholes in the road surface.

[0027] Initially, one end of the elastic limit pin 403 is stuck in the limit hole of the mounting bracket 201. When the marking width needs to be narrowed, the staff pulls the elastic limit pin 403 to the left, and the elastic limit pin 403 slides along the connecting plate 402 and disengages from the limit hole of the mounting bracket 201. After the elastic limit pin 403 is disengaged from the restriction, the variable pitch screw 401 can move. Then the staff drives the variable pitch screw 401 to rotate clockwise through the connecting plate 402. The guide shafts of the two partitions 203 on the left and the guide shafts of the two partitions 203 on the right are squeezed by the threads of the variable pitch screw 401. Due to the thread characteristics of the variable pitch screw 401, during the rotation of the variable pitch screw 401, the gaps between the five partitions 203 are shortened, and the gaps between the five partitions 203 are The gap between the two partitions 203 on the left side always remains consistent. Taking the two partitions 203 on the left side as an example, due to the thread characteristics of the variable pitch screw 401, when the variable pitch screw 401 rotates, the two partitions 203 both move to the right, and respectively drive the sliding plates 205 thereon to move to the right, and the movement speed of the first partition 203 on the left side is greater than that of the second partition 203 on the left side, thereby making the movement speeds of the sliding plates 205 on the two partitions 203 different. At this time, the first partition 203 on the left side drives the L-shaped rod 502 to apply an oblique thrust to the adjacent I-shaped plate 501 through the sliding plate 205 thereon, and the second partition 203 on the left side drives the L-shaped rod 502 to apply an oblique pulling force to the adjacent I-shaped plate 501 through the sliding plate 205 thereon, and the I-shaped plate 501 is forced to move to the right, and The T-shaped rod 206 drives the corresponding adjusting plate 204 to move to the right, and because the movement speed of the second partition 203 on the left is less than the movement speed of the first partition 203 on the left, the sliding plate 205 between the two partitions 203 moves closer to each other, and the two sliding plates 205 respectively drive the L-shaped rods 502 thereon to apply opposite oblique forces to the common adjacent I-shaped plates 501. The two opposite oblique forces push the I-shaped plates 501 to drive the T-shaped rod 206 to slide backward along the adjusting plate 204, thereby achieving the adjustment plate 204, the T-shaped rod 206 and the I-shaped plate 501 to move obliquely backward. While the T-shaped rod 206 slides on the top of the adjusting plate 204, it applies an extrusion force to the connecting frame 209 toward the oblique rear, and the connecting frame 209 is driven by the force to The flow plate 208 slides in the spray tube 207 and squeezes the inner wall of the through hole of the spray tube 207. The spray tube 207 is forced to move horizontally. At this time, the four spray tubes 207 slide close to each other, and the gaps between the four spray tubes 207 remain consistent. The compression spring is forced to shrink. After the throttle plate 208 slides, the flow in the corresponding spray tube 207 is reduced. At the same time, the two farthest partitions 203 respectively drive the wind shield 404 thereon to move, and the wind shield 404 slides horizontally along the mounting frame 201. At this time, the wind shield 404 can block the gap between the two farthest partitions 203 and the inner walls on the left and right sides of the mounting frame 201. At the same time, part of the airflow between the two farthest partitions 203 and the inner walls on the left and right sides of the mounting frame 201.It can be discharged through the ventilation holes of the two windshields 404, thereby preventing the gap between the five partitions 203 from shrinking, resulting in an excessive impact of the air flow on the regulating plate 204 and the sliding plate 205, and reducing the detection accuracy of cracks or potholes on the road surface. When the gap between the five partitions 203 is shortened, the adjacent two sliding plates 205 slide at a constant speed along the grooves of the corresponding regulating plate 204 under the action of the partition 203. The regulating plate 204 is always located between the adjacent two partitions 203. When the marking width narrows, the spraying amount of the hot melt coating needs to be reduced accordingly to prevent the finally formed marking from being too thick, which not only causes material waste, but also when the vehicle passes over the marking, a bumpy feeling will be明显 felt. Through the above steps, the flow rate of the spraying pipe 207 can be adjusted according to the marking width to prevent the above situation from occurring. After the adjustment is completed, the elastic limit pin 403 is loosened, and the elastic limit pin 403 releases the sliding and snaps into the corresponding limit hole on the mounting bracket 201, thereby stabilizing the gap between the five partitions 203 and the flow rates of the four spraying pipes 207., Embodiment 2

[0028] As Figure 6 with Figure 7 shown, it further includes a cleaning mechanism. The cleaning mechanism includes a first air duct 601. The left side of the mounting bracket 201 is connected to the first air duct 601. A U-shaped bracket 602 is fixedly connected to the bottom of the vehicle body 1. Convex discs 603 are symmetrically and fixedly connected inside the U-shaped bracket 602. Ventilation grooves are penetrated through the outer walls of the convex discs 603. The first air duct 601 is connected to the ventilation grooves. The upward air flow inside the mounting bracket 201 can enter the ventilation grooves of the convex discs 603 through the first air duct 601. An impeller 604 is rotatably connected inside the convex discs 603. A cleaning brush 605 is fixedly connected to the bottom of the impeller 604. A blowing pipe 701 is connected to the outer wall of the first air duct 601. A wind guiding block 702 is fixedly connected to the inner wall of the blowing pipe 701. The wind guiding block 702 is used to guide the air flow inside the blowing pipe 701.,

[0029] As Figure 8 shown, it further includes a cooling mechanism. The cooling mechanism includes a second air duct 801. The left side of the mounting bracket 201 is connected to the second air duct 801. One end of the second air duct 801 away from the mounting bracket 201 is connected to a connection box 802. A third air duct 803 is connected to one side of the connection box 802 away from the second air duct 801. One end of the third air duct 803 is connected to a cooling pipe 804. The upward air flow inside the mounting bracket 201 can enter the cooling pipe 804 through the second air duct 801, the connection box 802 and the third air duct 803.,

[0030] As Figure 8As shown, the cooling mechanism also includes a telescopic rod 901, and the outer wall of the third air duct 803 is fixedly sleeved with a support plate, on which the telescopic rod 901 is fixedly connected, and the inner cavity of the telescopic rod 901 is filled with thermosensitive gas, and the support plate is fixedly connected to the rear side of the mounting frame 201, and the telescopic end of the telescopic rod 901 is fixedly connected with a lifting plate 902, which is inserted into the connecting box 802 and slides therein.

[0031] The cooling mechanism also includes a pressure relief valve 1001 . The outer wall of the second air duct 801 is connected to the pressure relief valve 1001 . The pressure relief valve 1001 is used to discharge excess gas in the second air duct 801 .

[0032] When marking the road surface, it is necessary to clean the road surface in advance to prevent the presence of debris or too much dust on the road surface, which would cause the hot melt paint to not adhere well to the road surface. However, in the process of marking, it is impossible to ensure that the surrounding environment of the site is clean. After the road surface is cleaned, there will inevitably be debris or dust on the road surface. When airflow is generated in the gap between the I-shaped tube 2011 and the front side of the inner wall of the mounting frame 201, part of the airflow will enter the first air duct 601 and the second air duct 801 respectively. The airflow entering the first air duct 601 enters the two convex plates 603 and the blowing In the sweeping pipe 701, the impellers 604 in the two convex disks 603 are impacted by the airflow, driving the corresponding cleaning brushes 605 to rotate. At this time, the two cleaning brushes 605 rotate in opposite directions, thereby cleaning the road surface in front of the mounting frame 201. The airflow entering the sweeping pipe 701 flows downward along the sweeping pipe 701 and blows toward the road surface, and the airflow is diverted to both sides under the action of the air guide block 702, thereby sweeping away debris or dust on the road surface to both sides, thereby effectively preventing dust or debris from being present on the road surface during the marking process, which would cause the hot melt paint to fail to adhere well to the road surface.

[0033] After the hot melt paint is sprayed on the road surface, it solidifies at different speeds due to the influence of weather temperature. When the weather is hot, the hot melt paint cannot solidify quickly due to the high temperature, and the thermosensitive gas in the inner cavity of the telescopic rod 901 expands due to the temperature, causing the telescopic end of the telescopic rod 901 to fully extend. The extension of the telescopic rod 901 will drive the lifting plate 902 to move upward synchronously. After the lifting plate 902 moves upward, the connecting box 802 is connected to the second air duct 801 and the third air duct 803. The airflow entering the second air duct 801 passes through the connecting box 802 and the third air duct 803 and enters the cooling pipe 804, and blows toward the hot melt paint on the road surface, exerting an air cooling effect on the hot melt paint, so that the hot melt paint solidifies quickly. As the weather temperature The temperature is reduced, the solidification speed of the hot melt coating is accelerated, the demand for air cooling of the hot melt coating is reduced, and the thermosensitive gas in the inner cavity of the telescopic rod 901 shrinks due to the weather temperature. The telescopic end of the telescopic rod 901 drives the lifting plate 902 to descend, so that the lifting plate 902 partially blocks the connecting box 802. When the weather temperature is cold, there is no need to air cool the hot melt coating. The thermosensitive gas in the inner cavity of the telescopic rod 901 shrinks completely due to the weather temperature, and then the lifting plate 902 completely blocks the connecting box 802, the airflow in the second air duct 801 can no longer pass through the lifting plate 902, and the cooling pipe 804 no longer blows out airflow, thereby preventing the cooling pipe 804 from continuing to blow out airflow when the weather is cold, causing the staff who push the vehicle body 1 to feel cold.

[0034] When the lifting plate 902 partially blocks the connection box 802, the airflow in the second air duct 801 cannot pass through the connection box 802 at full speed, resulting in an increase in the air pressure in the second air duct 801. At this time, the pressure relief valve 1001 can adaptively open according to the air pressure in the second air duct 801, so that the airflow in the second air duct 801 is discharged, thereby preventing the airflow between the I-shaped tube 2011 and the front side of the inner wall of the mounting frame 201 from increasing, causing the movement position of the adjustment plate 204 and the sliding plate 205 to be affected. When the lifting plate 902 completely blocks the connection box 802, the pressure relief valve 1001 is fully opened, so that the airflow in the second air duct 801 can be quickly discharged through the pressure relief valve 1001.

[0035] A construction method of a road marking device for construction engineering comprises the following steps: S1: Start the air pump 202 to generate downward airflow in the I-shaped tube 2011, and make the airflow produce Bernoulli effect, so that the airflow velocity increases. The air guide plate 301 guides the airflow, so that the airflow affects the plurality of adjustment plates 204 and the sliding plate 205; S2: After a number of adjustment plates 204 and sliding plates 205 are affected, the T-shaped rod 206 squeezes the connecting frame 209, thereby adjusting the position of the throttle plate 208; S3: Pull the elastic limiting pin 403 to the side away from the mounting frame 201, and rotate the variable pitch screw 401 to adjust the marking width; S4: The airflow enters the first air duct 601 and the second air duct 801 respectively, so as to clean the road surface and solidify the hot melt paint quickly.

[0036] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A road marking device for construction engineering, comprising a vehicle body, a hot melt kettle is installed on the vehicle body, and the characteristics are: It further includes a detection mechanism. The detection mechanism includes a mounting frame. One side of the vehicle body is fixedly connected with the mounting frame. An I-shaped pipe is fixedly connected inside the mounting frame. An air pump is fixedly installed at the top of the inner wall of the I-shaped pipe. A number of evenly distributed partition plates are slidably connected to the outer wall of the I-shaped pipe. A number of evenly distributed adjusting plates are slidably connected to one side of the I-shaped pipe. Grooves are symmetrically formed on both sides of each of the number of adjusting plates. A sliding plate is slidably connected inside the grooves. The front sides of each of the number of adjusting plates and the sliding plate are in contact with the front side of the inner wall of the mounting frame. The sliding plate is slidably connected to the front side of the I-shaped pipe and is also slidably connected to the partition plates. T-shaped rods are slidably connected to the tops of each of the number of adjusting plates. A number of evenly distributed spraying pipes are slidably connected inside the mounting frame. Each of the number of spraying pipes is communicated with the hot melt kettle through a hose. Through holes are formed on one side of each of the number of spraying pipes. A throttle plate is slidably connected inside the through holes. A compression spring is arranged between the throttle plate and the spraying pipe. A connecting frame used in cooperation with the T-shaped rod is fixedly connected to one side of the throttle plate. An adjusting mechanism is arranged inside the mounting frame.

2. A road marking device for construction engineering according to claim 1, characterized in that: The detection mechanism further includes a wind guiding plate. The wind guiding plate is fixedly connected to the inner wall of the mounting frame.

3. A road marking device for construction engineering according to claim 2, characterized in that: The adjusting mechanism includes a variable pitch screw. The variable pitch screw is rotatably connected through one side of the mounting frame. Guide shafts are fixedly connected to one side of each of the number of partition plates. The guide shafts are clamped into the threads of the variable pitch screw and slide inside it. A connecting plate is fixedly connected to one end of the variable pitch screw. An elastic limit pin is slidably connected through one side of the connecting plate. A number of evenly distributed limit holes are formed on one side of the mounting frame. The elastic limit pin is used in cooperation with the number of limit holes.

4. A road marking device for construction engineering according to claim 3, characterized in that: The adjusting mechanism further includes a wind shielding plate. The wind shielding plates are fixedly connected to the mutually remote sides of two of the partition plates. The wind shielding plates are slidably connected through the mounting frame. Ventilation holes are formed through the tops of the wind shielding plates.

5. A road marking device for construction engineering according to claim 4, characterized in that: The adjusting mechanism further includes an I-shaped plate. The I-shaped plate is fixedly sleeved on the outer wall of the T-shaped rod. L-shaped rods are symmetrically hinged inside the I-shaped plate. One end of each L-shaped rod is rotatably connected to the sliding plate.

6. A road marking device for construction engineering according to claim 5, characterized in that: It further includes a cleaning mechanism. The cleaning mechanism includes a first air duct. The first air duct is communicated with one side of the mounting frame. A U-shaped frame is fixedly connected to the bottom of the vehicle body. Convex discs are symmetrically fixedly connected inside the U-shaped frame. Ventilation grooves are formed through the outer walls of the convex discs. The first air duct is communicated with the ventilation grooves. An impeller is rotatably connected inside the convex discs. A cleaning brush is fixedly connected to the bottom of the impeller. A blowing pipe is communicated with the outer wall of the first air duct. A wind guiding block is fixedly connected to the inner wall of the blowing pipe.

7. A road marking device for construction engineering according to claim 6, characterized in that: It further includes a cooling mechanism. The cooling mechanism includes a second air duct. The second air duct is communicated with one side of the mounting frame. One end of the second air duct is communicated with a connection box. A third air duct is communicated with one side of the connection box. One end of the third air duct is communicated with a cooling pipe.

8. A road marking device for construction engineering according to claim 7, characterized in that: The cooling mechanism also includes a telescopic rod, a support plate is fixedly sleeved on the outer wall of the third air duct, the telescopic rod is fixedly connected to the support plate, the support plate is fixedly connected to the mounting frame, the telescopic end of the telescopic rod is fixedly connected to a lifting plate, and the lifting plate is stuck in the connection box and slides therein.

9. A road marking device for construction engineering according to claim 8, characterized in that: The cooling mechanism further includes a pressure relief valve, and the outer wall of the second air duct is connected to the pressure relief valve.

10. The construction method of the road marking equipment for construction engineering according to claim 9, characterized in that: The following steps are included: S1: starting the air pump to generate a downward airflow in the I-shaped tube, and causing the airflow to produce a Bernoulli effect, thereby increasing the airflow velocity; the air guide plate guides the airflow, so that the airflow affects the plurality of the adjustment plates and the sliding plate; S2: After a number of the adjustment plates and the sliding plates are affected, the T-shaped rod squeezes the connecting frame, thereby adjusting the position of the throttle plate; S3: Pull the elastic limiting pin to a side away from the mounting frame and rotate the variable pitch screw to adjust the marking width; S4: The airflow enters the first air duct and the second air duct respectively, so as to clean the road surface and solidify the hot melt coating quickly.

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