Road marking brushing equipment for road construction
By designing a road marking brushing equipment equipped with a melting furnace body, spraying assembly and air-drying assembly, the marking damage problem caused by slow paint drying speed in traditional brushing methods is solved, and efficient air-drying and uniform spraying of markings are achieved.
Patent Information
- Application Number
- CN202411768181.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-03-04
AI Technical Summary
The traditional method of painting road marking lines contains paints that are susceptible to movable debris on the road surface or movement of vehicle personnel during the drying process, resulting in damage to the marking lines and affecting the effect of the finished product.
A road marking brushing equipment for road construction was designed, including a marking brushing machine. The brushing machine is equipped with a melting furnace body, spraying components and air-drying components. The paint is pressurized and sprayed through an air pump, and a fan group is used to perform rapid air-drying operations to ensure the uniformity and stability of the marking.
Through rapid air-drying operation and uniform spraying, the air-drying efficiency and finished product quality of the marking are significantly improved, and the risk of marking damage caused by slow drying speed is reduced.
Smart Images
Figure CN119549339A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of road marking line painting equipment, and in particular to road marking line painting equipment for road construction. Background Art
[0002] In modern urban and highway construction, road markings are an important part of ensuring traffic safety and improving traffic efficiency. In the existing technology, traffic markings refer to the use of lines, arrows, text, facade markings, raised road signs and contour marks on the road surface to convey traffic information such as guidance, restriction, and warning to traffic participants. Its function is to control and guide traffic. It can be used in conjunction with signs or alone. Expressways, first-class highways, second-class highways, urban expressways, and main roads should be equipped with reflective traffic markings in accordance with standard regulations. Other roads can be equipped with traffic markings in accordance with standards as needed. When spraying traffic markings, it is necessary to first draw white markings on the ground to facilitate the positioning of the entire traffic markings. The markings on the road surface are all drawn using marking devices. Road marking paint machines are a type of mechanical equipment specially used for drawing markings on roads. These machines are usually used to draw traffic signs, parking lines, zebra crossings, etc.
[0003] Traditional road marking painting methods mainly rely on manual operation or simple mechanical equipment. These methods have the following problems. There are two traditional coating methods. One is to roll the sticky material with a roller, and the other is to spray the paint. Both methods have a problem. When the paint is just sprayed, the paint is in a wet state and dries slowly. It is easy to cause damage to the markings due to movable debris on the road or the movement of vehicles and personnel, affecting the finished product effect of the paint-drawn markings. Therefore, a road marking painting equipment for road construction is needed to solve the above problems. Summary of the invention
[0004] The purpose of the present invention is to solve the problems raised in the above background technology.
[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A road marking painting equipment for road construction comprises a road marking painting machine, the road marking painting machine comprises a frame, the frame is sequentially equipped with an air pump and a push handle, a smelting furnace body is arranged on the left side of the top end of the frame, the smelting furnace body comprises a restraining ring, a furnace bin is installed in the restraining ring, and a top cover is installed on the top buckle cover of the furnace bin, the top cover is directly connected to the air pump through a pump pipe, a frame group is installed on the left side of the frame, a spraying component is arranged on the left side of the frame group, the spraying component comprises an external plate sleeve, a connecting shaft is connected to the side of the external plate sleeve, and a shaft sleeve is connected to the end of the connecting shaft, a hanging plate is connected to the bottom end of the shaft sleeve, and a mask plate is connected to the right side of the hanging plate, a pipe group is arranged on the top of the mask plate, a docking block is connected to the outer side of the bottom end of the hanging plate, and an air drying component is installed on the outer side of the docking block, the furnace bin can be pressurized by the air pump, a discharge port is opened on the side of the bottom end of the furnace bin, the paint can flow from the discharge port after being pressurized in the furnace bin, and it is convenient to cooperate with the pipe group for spraying operation.
[0006] Preferably, a motor is installed on the top of the top cover, and the shaft end of the motor is connected to a rotating shaft after passing through the top cover, a blade is connected around the outside of the rotating shaft, an I-shaped through groove is provided on the surface of the blade, and two pushing plates are symmetrically installed on the outside of the bottom end of the rotating shaft, and the pushing plates are inclined. When the motor is started, the rotating shaft can be driven to rotate, so that the rotating shaft drives the blade to rotate in the furnace bin, thereby controlling the stirring of the molten coating, preventing the molten coating from settling and accumulating to form a whole, which is conducive to the flow of the molten coating.
[0007] Preferably, the frame assembly includes a plate frame connected and fixed to the side of the vehicle frame, a horizontal insertion shaft is inserted through the inside of the plate frame, a first bolt is inserted through a threaded hole on the outside of the plate frame, a vertical insertion shaft is inserted through a through hole at the end of the first bolt, and a second bolt is inserted through a threaded hole on the side of the end of the horizontal insertion shaft, and the shaft end of the first bolt moves in the plate frame and contacts the surface of the horizontal insertion shaft to be locked and fixed.
[0008] Preferably, an external plate sleeve is installed on the outer side of the vertical plug shaft, and a third bolt is inserted through a threaded hole on the outer side of the external plate sleeve. The external plate sleeve is moved on the surface of the vertical plug shaft, which facilitates further adjustment of the position of the spray pipe and improves the adjustability of the spray pipe.
[0009] Preferably, the pipe group includes a connecting pipe that is connected to the furnace bin discharge port, the other end of the connecting pipe is connected and fixed to the hard pipe, the hard pipe passes through the hanging plate and is connected and fixed to the spray pipe, the spray pipe is fixed to the top of the mask plate, and a plurality of nozzle ends are equidistantly arranged at the bottom of the mask plate. The furnace bin and the hard pipe can be connected through the connecting pipe, which is convenient for guiding the paint, and the spray pipe design at the end of the hard pipe facilitates the spraying of the paint from the nozzle end of the spray pipe, thereby ensuring the uniformity of the paint on the road surface spray marking lines.
[0010] Preferably, an indicating accessory is provided on the side of the mask plate, and the indicating accessory comprises a positioning plate sleeve fixed on the surface of the mask plate, an indicating shaft is inserted through the through hole on the side of the positioning plate sleeve, and a fourth bolt is inserted through the threaded hole on the outer side of the positioning plate sleeve. The cross rod end of the indicating shaft moves in the positioning plate sleeve, and the road marking can be conveniently guided by the indicating shaft to ensure the stability of the marking during spraying and avoid tilting during spraying.
[0011] Preferably, the air-drying component includes a hanging plate, which is inserted into the surface of the docking block, a fifth bolt is inserted into the outer side of the hanging plate through a through hole, and the axial end of the fifth bolt is inserted into the inside of the docking block through a threaded hole, a vertical plate end is provided at the bottom end of the hanging plate, and a slider is embedded in the inner side of the vertical plate end through a slide groove, and the slider is fixed on both sides of the fan group, and a battery is installed at the top of the fan group, and the battery can provide power for the fan end of the fan group to operate, so that the marking line can be quickly air-dried through the fan end of the fan group.
[0012] Preferably, a threaded shaft is inserted into the surface of one of the sliders through a threaded hole, and one end of the threaded shaft is rotatably mounted on the inner wall of the slide groove at the end of the vertical plate of the hanging plate, and the top end of the threaded shaft passes through the outer side of the top end of the hanging plate, and the slider can be limited by the slide groove of the hanging plate so that the slider can only move up and down, thereby adjusting the position of the fan group, and then the wind force of the fan group for drying the paint can be controlled.
[0013] Preferably, a plurality of fan ends are equidistantly installed on the surface of the fan group, a guide plate is installed at the bottom end of the fan group, and an air groove is opened on the inner wall of the guide plate. The wind blown out from the fan end of the fan group can be guided by the guide plate to ensure the effect of wind blowing and drying the paint.
[0014] The present invention has at least the following beneficial effects: By setting a docking block and an air-drying component, the rapid air-drying operation of the sprayed marking line can be achieved. Compared with the traditional structure, the device sets docking blocks on both sides of the hanging plate, so that the hanging plate can be plugged into the docking blocks during sliding. When the spraying tube has finished spraying the road surface, the fan end of the fan group can be started to quickly air-dry the road spray marking line. At the same time, the guide plate can guide the wind force so that the wind force can be concentrated. According to the hot or cold weather, the threaded shaft can be twisted to control the slider to move in the inner wall guide groove, and then the height of the fan group can be adjusted, and the size of the direct blowing wind force of the fan end of the fan group on the marking line can be changed, so as to further improve the efficiency of marking line drying.
[0015] By setting up a frame group, a mask plate and a tube group, the neatness of the marking line spraying is ensured. The device moves in the plate frame through the horizontal plug shaft to change the spraying position of the spray tube. The vertical plug shaft moves in the external plate sleeve to change the spraying height of the spray tube. The mask plate can be used to restrain and limit the sprayed paint, thereby ensuring the flatness of the paint during spraying and avoiding the possibility of defects in the spraying due to strong environmental wind.
[0016] By setting the indicating accessories, the straight line spraying of the paint can be guided. The device moves in the positioning plate sleeve through the cross bar end of the indicating shaft. At the same time, the shaft end of the fourth bolt moves in the threaded hole of the positioning plate sleeve and then abuts against the surface of the indicating shaft and locks. The indicating shaft can be flush with the old marking line or the roadside, thereby ensuring the stability and position accuracy of the spraying and avoiding deviation or interruption when spraying the marking line.
[0017] By setting up a melting furnace body, the coating can be stirred and pushed. The device drives the blade to rotate by rotating the shaft, and then stirs the hot-melt coating to avoid precipitation and solidification of the coating, and to prevent the discharge port of the furnace bin from being blocked. At the same time, the shaft drives the push plate to rotate, and the coating can be continuously pushed, further reducing the probability of blockage at the discharge port of the inner wall of the furnace bin. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.
[0019] Figure 1 This is a schematic diagram of the external structure of a road marking painting device for road construction proposed by the present invention; Figure 2 This is a three-dimensional structural diagram of a frame group and a spraying component in a road marking painting device for road construction proposed by the present invention; Figure 3 This is a schematic diagram of the three-dimensional disassembled structure of a spraying assembly in a road marking painting device for road construction proposed by the present invention; Figure 4 This is a three-dimensional upward-view disassembled structural schematic diagram of a spraying assembly in a road marking painting device for road construction proposed by the present invention; Figure 5 This is a three-dimensional disassembled structural diagram of a melting furnace body in a road marking painting device for road construction proposed by the present invention; Figure 6 This is a three-dimensional disassembled structural schematic diagram of an air-drying component in a road marking painting device for road construction proposed by the present invention; Figure 7 This is a three-dimensional upward-view disassembled structural schematic diagram of an air-drying component in a road marking painting device for road construction proposed by the present invention.
[0020] In the figure: 1. marking brushing machine; 11. frame; 12. air pump; 13. pump pipe; 14. push handle; 2. melting furnace body; 21. restraining ring; 22. furnace bin; 23. top cover; 24. motor; 25. rotating shaft; 26. blade; 27. push plate; 3. frame assembly; 31. plate frame; 32. first bolt; 33. horizontal plug shaft; 34. second bolt; 35. vertical plug shaft; 4. spray assembly; 41. external plate sleeve; 42. third bolt; 43. Coupling; 44. Bushing; 45. Hanging plate; 46. Shield plate; 47. Docking block; 48. Pipe assembly; 481. Connecting pipe; 482. Hard pipe; 483. Spraying pipe; 49. Indicator fitting; 491. Positioning plate sleeve; 492. Fourth bolt; 493. Indicator shaft; 5. Air drying assembly; 51. Hanging plate; 52. Fifth bolt; 53. Fan assembly; 54. Battery; 55. Slider; 56. Threaded swivel; 57. Guide plate. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0022] Reference Figure 1-7 A road marking painting device for road construction includes a road marking painting machine 1, which includes a frame 11, on which an air pump 12 and a push handle 14 are sequentially installed, a smelting furnace body 2 is arranged on the left side of the top of the frame 11, and the smelting furnace body 2 includes a restraining ring 21, a furnace bin 22 is installed in the restraining ring 21, and a top cover 23 is installed on the top cover of the furnace bin 22, and the top cover 23 is directly connected to the air pump 12 through the pump pipe 13, and the left side of the frame 11 is provided with a smelting furnace body 2, and the smelting furnace body 2 includes a restraining ring 21, a furnace bin 22 is installed in the restraining ring 21, and a top cover 23 is installed on the top cover of the furnace bin 22, and the top cover 23 is directly connected to the air pump 12 through the pump pipe 13. A frame group 3 is installed on the side, and a spraying component 4 is arranged on the left side of the frame group 3. The spraying component 4 includes an external plate sleeve 41, a connecting shaft 43 is connected to the side of the external plate sleeve 41, and a shaft sleeve 44 is connected to the end of the connecting shaft 43, a hanging plate 45 is connected to the bottom end of the shaft sleeve 44, and a mask plate 46 is connected to the right side of the hanging plate 45, a pipe group 48 is arranged on the top of the mask plate 46, a docking block 47 is connected to the outer side of the bottom end of the hanging plate 45, and an air-drying component 5 is installed on the outer side of the docking block 47.
[0023] A motor 24 is installed on the top of the top cover 23, and the shaft end of the motor 24 passes through the top cover 23 and is connected to a rotating shaft 25. A blade 26 is connected to the outside of the rotating shaft 25. An I-shaped through groove is opened on the surface of the blade 26. Two push plates 27 are symmetrically installed on the outside of the bottom end of the rotating shaft 25, and the push plates 27 are designed to be inclined.
[0024] The frame assembly 3 includes a plate frame 31 connected and fixed to the side of the frame 11, a horizontal shaft 33 is inserted through the inside of the plate frame 31, a first bolt 32 is inserted through a threaded hole on the outside of the plate frame 31, a vertical shaft 35 is inserted through a through hole at the end of the first bolt 32, and a second bolt 34 is inserted through a threaded hole on the side of the end of the horizontal shaft 33.
[0025] An external plate sleeve 41 is sleeved and installed on the outer side of the vertical insertion shaft 35 , and a third bolt 42 is inserted into the outer side of the external plate sleeve 41 through a threaded hole.
[0026] The pipe group 48 includes a connecting pipe 481 connected to the discharge port of the furnace bin 22. The other end of the connecting pipe 481 is connected and fixed to the hard pipe 482. The hard pipe 482 passes through the hanging plate 45 and is connected and fixed to the spray pipe 483. The spray pipe 483 is fixed to the top of the shield plate 46. A plurality of nozzle ends are equidistantly arranged at the bottom of the shield plate 46.
[0027] An indicating accessory 49 is provided on the side of the shielding plate 46, and the indicating accessory 49 includes a positioning plate sleeve 491 fixed on the surface of the shielding plate 46, an indicating shaft 493 is inserted through a through hole on the side of the positioning plate sleeve 491, and a fourth bolt 492 is inserted through a threaded hole on the outer side of the positioning plate sleeve 491.
[0028] The air-drying component 5 includes a hanging plate 51, which is inserted into the surface of the docking block 47. A fifth bolt 52 is inserted through a through hole on the outside of the hanging plate 51, and the axial end of the fifth bolt 52 is inserted into the inside of the docking block 47 through a threaded hole. A vertical plate end is provided at the bottom end of the hanging plate 51, and a slider 55 is embedded in the inner side of the vertical plate end through a slide groove. The slider 55 is fixed on both sides of the fan group 53, and a battery 54 is installed at the top of the fan group 53.
[0029] A threaded shaft 56 is inserted into the surface of one of the sliders 55 through a threaded hole, and one end of the threaded shaft 56 is rotatably mounted on the inner wall of the slide groove at the vertical plate end of the hanging plate 51 , and the top end of the threaded shaft 56 passes through the outer side of the top end of the hanging plate 51 .
[0030] A plurality of fan ends are equidistantly mounted on the surface of the fan group 53 , a guide plate 57 is mounted on the bottom end of the fan group 53 , and an air groove is formed on the inner wall of the guide plate 57 .
[0031] The frame 11 is composed of a chassis end, a diesel engine unit, etc. The staff can push the frame 11 conveniently by holding the push handle 14, and the furnace bin 22 can be pressurized by the air pump 12. A discharge port is provided on the side of the bottom end of the furnace bin 22, so that the paint can flow from the discharge port after being pressurized in the furnace bin 22, and it is convenient to cooperate with the pipe group 48 for spraying. The motor 24 can be started to drive the rotating shaft 25 to rotate, so that the rotating shaft 25 drives the blade 26 to rotate in the furnace bin 22, so as to control the stirring of the molten paint and prevent the molten paint from precipitating and accumulating to form a whole. The body is conducive to the flow of the smelting coating. At the same time, the pushing plate 27 can push the coating while rotating to prevent the coating from being blocked on the inner side of the discharge port of the furnace bin 22 during flow. The spraying position of the spray tube 483 can be changed by pulling the horizontal plug shaft 33 in the plate frame 31. When the horizontal plug shaft 33 is adjusted, the axial end of the first bolt 32 is moved in the plate frame 31, and the axial end of the first bolt 32 contacts the surface of the horizontal plug shaft 33 to be locked and fixed. The vertical plug shaft 35 is moved on the surface of the horizontal plug shaft 33 to achieve position adjustment of the vertical plug shaft 35.
[0032] By moving the external plate sleeve 41 on the surface of the vertical plug shaft 35, it is convenient to further adjust the position of the spray tube 483, thereby improving the adjustability of the spray tube 483. After the external plate sleeve 41 is adjusted, the axial end of the third bolt 42 moves in the threaded hole of the external plate sleeve 41, and the third bolt 42 is controlled to contact the surface of the vertical plug shaft 35 to lock and fix the position of the external plate sleeve 41. The furnace bin 22 and the hard tube 482 can be connected through the connecting tube 481, which is convenient for guiding the paint. The design of the spray tube 483 at the end of the hard tube 482 facilitates the paint to be sprayed out from the nozzle end of the spray tube 483, thereby ensuring the uniformity of the paint spraying markings on the road surface. The diameter of the mask plate 46 gradually increases from top to bottom, and the sprayed paint can be limited by the mask plate 46, so that the paint can be stably sprayed on the road surface, thereby ensuring the neatness of the marking spraying.
[0033] By moving the crossbar end of the indicating shaft 493 in the positioning plate sleeve 491, the indicating shaft 493 can be conveniently used to guide the road marking line, ensure the stability of the marking line during spraying, and avoid tilting during spraying. When the indicating shaft 493 is adjusted, the shaft end of the fourth bolt 492 can be abutted against the surface of the indicating shaft 493 to lock and fix it. When installing the hanging plate 51, the hanging plate 51 can be installed by sliding the hanging plate 51 on the surface of the docking block 47, and can be locked and fixed by the fifth bolt 52. The battery 54 can provide the fan end of the fan group 53 with power. The electric power is supplied, and the marking line is quickly dried through the fan end of the fan group 53. The slider 55 can be controlled to move on the surface of the threaded shaft 56 by rotating the threaded shaft 56. The slider 55 can be limited by the slide groove of the suspension plate 51 so that the slider 55 can only move up and down, thereby adjusting and changing the position of the fan group 53, and then the wind force of the fan group 53 for drying the paint can be controlled. The wind blown out from the fan end of the fan group 53 can be guided by the guide plate 57 to ensure the blowing and drying effect of the wind on the paint. The wind groove design of the guide plate 57 can further improve the downward blowing effect of the wind.
[0034] Working principle: According to the attached Figure 5 As shown, during use, the hot melt paint can be poured into the furnace bin 22. After the hot melt operation in the furnace bin 22, the motor 24 is started, and the shaft end of the motor 24 drives the rotating shaft 25 to rotate. The rotating shaft 25 can drive the blade 26 and the pushing plate 27 to rotate. The blade 26 can prevent the paint from being moved. At the same time, the pushing plate 27 can push the paint. At this time, the pump pipe 13 can pressurize the air pressure in the furnace bin 22, so that the paint is pushed into the connecting pipe 481 under pressure. The paint passes through the connecting pipe 481 and enters the hard pipe 482. Finally, it is sprayed in rows from the nozzle of the spray pipe 483. The paint can be guided by the mask plate 46 to ensure the neatness of the spraying. Secondly, according to the attached Figure 2 With attached Figure 3 As shown, the external plate sleeve 41 can be moved on the surface of the vertical plug shaft 35 to change the spraying height of the spray pipe 483. When the external plate sleeve 41 is adjusted, the third bolt 42 is moved in the threaded hole of the external plate sleeve 41 so that the shaft end of the third bolt 42 abuts against the surface of the vertical plug shaft 35 for locking and fixing. When the spraying position of the spray pipe 483 needs to be changed, the transverse plug shaft 33 can be pulled to move the transverse plug shaft 33 in the plate frame 31. When the transverse plug shaft 33 is adjusted, the shaft end of the first bolt 32 is moved in the threaded hole of the plate frame 31 so that the shaft end of the first bolt 32 abuts against the surface of the transverse plug shaft 33 for locking and fixing. Finally, according to the attached Figure 6 With attached Figure 7As shown, the suspension plate 51 and the docking block 47 can be plugged into each other, and then the suspension plate 51 can be suspended and installed. At this time, the threaded shaft 56 can be rotated, and the slider 55 can be moved on the surface of the threaded shaft 56 to adjust the position of the fan group 53. The wind force generated by the start-up of the fan group 53 can be guided by the guide plate 57 to ensure the concentration of wind blowing.
[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.
Claims
1. A road marking painting device for road construction, comprising a road marking painting machine (1), the road marking painting machine (1) comprising a frame (11), an air pump (12) and a push handle (14) being mounted on the frame (11) in sequence, characterized in that: A smelting furnace body (2) is arranged on the left side of the top end of the vehicle frame (11), the smelting furnace body (2) comprises a restraining ring (21), a furnace bin (22) is installed in the restraining ring (21), and a top cover (23) is installed on the top end of the furnace bin (22), the top cover (23) is directly connected to the air pump (12) through the pump pipe (13), a frame group (3) is installed on the left side of the vehicle frame (11), a spraying assembly (4) is arranged on the left side of the frame group (3), and the spraying assembly ( 4) comprises an external plate sleeve (41), the side of the external plate sleeve (41) is connected to a connecting shaft (43), and the end of the connecting shaft (43) is connected to a shaft sleeve (44), the bottom end of the shaft sleeve (44) is connected to a hanging plate (45), and the right side of the hanging plate (45) is connected to a shielding plate (46), the top of the shielding plate (46) is provided with a pipe group (48), the outer side of the bottom end of the hanging plate (45) is connected to a docking block (47), and the outer side of the docking block (47) is installed with an air drying component (5).
2. A road marking painting device for road construction according to claim 1, characterized in that: A motor (24) is installed at the top of the top cover (23), and the shaft end of the motor (24) passes through the top cover (23) and is connected to a rotating shaft (25). A blade plate (26) is connected around the outside of the rotating shaft (25), and an I-shaped through groove is provided on the surface of the blade plate (26). Two push plates (27) are symmetrically installed on the outside of the bottom end of the rotating shaft (25), and the push plates (27) are designed to be inclined.
3. A road marking painting device for road construction according to claim 1, characterized in that: The frame assembly (3) comprises a plate frame (31) connected and fixed to the side of the vehicle frame (11); a transverse insertion shaft (33) is inserted through the inside of the plate frame (31); a first bolt (32) is inserted through a threaded hole on the outside of the plate frame (31); a vertical insertion shaft (35) is inserted through a through hole at the end of the first bolt (32); and a second bolt (34) is inserted through a threaded hole on the side of the end of the transverse insertion shaft (33).
4. A road marking painting device for road construction according to claim 3, characterized in that: An external plate sleeve (41) is sleeved and installed on the outer side of the vertical insertion shaft (35), and a third bolt (42) is inserted through a threaded hole on the outer side of the external plate sleeve (41).
5. A road marking painting device for road construction according to claim 1, characterized in that: The pipe group (48) includes a connecting pipe (481) connected to the discharge port of the furnace bin (22), the other end of the connecting pipe (481) is connected and fixed to the hard pipe (482), the hard pipe (482) passes through the hanging plate (45) and is connected and fixed to the spray pipe (483), the spray pipe (483) is fixed to the top of the shield plate (46), and a plurality of nozzle ends are equidistantly arranged at the bottom of the shield plate (46).
6. A road marking painting device for road construction according to claim 5, characterized in that: An indication accessory (49) is provided on the side of the shield plate (46), and the indication accessory (49) comprises a positioning plate sleeve (491) fixed to the surface of the shield plate (46), an indication shaft (493) is inserted through a through hole on the side of the positioning plate sleeve (491), and a fourth bolt (492) is inserted through a threaded hole on the outside of the positioning plate sleeve (491).
7. A road marking painting device for road construction according to claim 1, characterized in that: The air-drying component (5) comprises a hanging plate (51), the hanging plate (51) being inserted into the surface of the docking block (47), a fifth bolt (52) being inserted through a through hole on the outer side of the hanging plate (51), and an axial end of the fifth bolt (52) being inserted into the interior of the docking block (47) through a threaded hole, a vertical plate end being arranged at the bottom end of the hanging plate (51), and a slider (55) being embedded and installed on the inner side of the vertical plate end through a slide groove, the slider (55) being fixed on both sides of the fan group (53), and a storage battery (54) being installed at the top end of the fan group (53).
8. A road marking painting device for road construction according to claim 7, characterized in that: A threaded shaft (56) is inserted through a threaded hole on the surface of one of the sliders (55), and one end of the threaded shaft (56) is rotatably mounted on the inner wall of a slide groove at the end of a vertical plate of the hanging plate (51), and the top end of the threaded shaft (56) passes through the outer side of the top end of the hanging plate (51).
9. A road marking painting device for road construction according to claim 7, characterized in that: A plurality of fan ends are equidistantly mounted on the surface of the fan group (53); a guide plate (57) is mounted on the bottom end of the fan group (53); and an air groove is formed on the inner wall of the guide plate (57).