A hot air fuel oil device for laying flat a coiled material

Abstract

The application discloses a kind of hot air fuel equipment of coiled material flat laying, including the vehicle body for asphalt paving, vehicle body inside is equipped with the fuel air heater structure for making asphalt melt flow to road surface and carry out paving;Vehicle body front end is rotatably provided with asphalt paving structure;Vehicle body inside is further provided with air guide structure, fuel air heater structure rear end is equipped with the air direction angle adjusting structure for adjusting the angle of air outlet, the support structure for supporting and limiting coiled material unit is arranged on the top of vehicle body;Roller structure for traction, conveying and guiding coiled material is arranged between asphalt paving structure and support structure, the structure of the present application is reasonable in design, through the cooperation of coiled material unit, roller structure and asphalt paving structure, the coiled material in contact with the ground receives greater weight, the asphalt on the coiled material is more evenly and completely laid on the road surface, without repeated rolling, reducing coiled material wrinkles, folding, and further making asphalt laying more evenly.

Description

Technical Field

[0001] This invention relates to the field of municipal road construction, and in particular to a hot air fuel-fired equipment for laying rolled materials. Background Technology

[0002] Municipal engineering refers to the construction of municipal facilities. In my country, municipal facilities refer to various buildings, structures, and equipment set up within the planning and construction scope of urban areas and towns to provide paid or free public goods and services to residents based on government responsibilities and obligations. The construction of various public infrastructure supporting urban life falls within the scope of municipal engineering.

[0003] Currently, asphalt paving equipment is frequently used in the construction of municipal roads to maintain the road surface. However, the existing asphalt paving equipment often requires construction workers to repeatedly compact the asphalt to ensure that the road surface is evenly paved. The above operation process is not only cumbersome and complicated, but also increases the labor intensity of construction workers and affects the progress of construction. Therefore, it needs to be improved. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a hot air fuel-fired equipment for laying roll materials, in light of the current state of the technology.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a roll material laying hot air fuel equipment, including a vehicle body for asphalt paving, and a fuel-fired heater structure inside the vehicle body for melting asphalt and flowing it to the road surface for paving. The front of the vehicle body has an asphalt pavement structure that rotates. The vehicle body is also equipped with an air guide structure, which is arranged between the fuel-fired heater structure and the asphalt pavement structure. The air guide structure and the fuel-fired heater structure are fixedly connected, and the air guide structure directs the hot air blown out by the fuel-fired heater structure to the asphalt pavement structure. The rear end of the fuel-fired heater is equipped with a wind direction angle adjustment structure for adjusting the air outlet angle. One end of the wind direction angle adjustment structure is fixedly connected to the fuel-fired heater structure, and the other end of the wind direction angle adjustment structure is movable and drives the fuel-fired heater structure and the air guide structure to rotate synchronously. The top of the vehicle body is equipped with a roll material unit and a support structure for supporting and limiting the roll material unit; A roller structure for traction, conveying and guiding the roll material is arranged between the asphalt pavement structure and the supporting structure, and the roller structure is located on the top of the vehicle body; After the roll material unit is guided to the ground by the roller structure, the roll material unit is compacted onto the road surface by the asphalt paving structure, and the fuel-fired heater structure blows hot air to melt the roll material unit for paving.

[0006] Preferably, the front end of the fuel-fired heater structure is provided with an air outlet, and the air guide structure is fixed on the air outlet. The air guide structure includes an air guide component, the inside of which is an air guide cavity. An air inlet and an air outlet are respectively opened at both ends of the air guide component. The air inlet and the air outlet are connected, and the air outlet is aligned with the asphalt pavement structure. A first air guide unit and a second air guide unit are fixedly provided in the air guide cavity.

[0007] Preferably, the first air guiding unit includes a first air guiding plate, a second air guiding plate, and a third air guiding plate. A first air guiding channel is formed between the first air guiding plate and the second air guiding plate, a second air guiding channel is formed between the second air guiding plate and the third air guiding plate, and a third air guiding channel is formed between the third air guiding plate and the side wall of the air guiding component. The first air guiding channel, the second air guiding channel, and the third air guiding channel are all connected to the air inlet and the air outlet. The second air guiding unit includes at least three air guiding plates fixedly disposed in the first air guiding channel, the second air guiding channel, and the third air guiding channel. The air guiding plates are perpendicular to the bottom surface of the air guiding cavity and arranged close to the air outlet.

[0008] Preferably, the structure of the fuel-fired heater includes a first heater unit and a second heater unit, which are connected by a connector. Both the first heater unit and the second heater unit include a heater duct, which is divided into a combustion chamber and an air supply section. The combustion chamber is located at the front of the air supply section, and the air outlet is located at the front end of the combustion chamber.

[0009] Preferably, the wind direction angle adjustment structure includes an adjustment rod and a limiting hole. A rear back plate is provided on the rear side wall of the vehicle body, and the limiting hole is L-shaped and opened on the rear back plate. The two ends of the adjustment rod are a fixed end and an adjustment end, respectively. The fixed end is fixedly connected to the connector, and the adjustment end is fixedly provided with a limiting ball that cooperates with the limiting hole for limiting. The two ends of the limiting hole are a first end and a second end, respectively. The first end is arranged above the second end. When the fixed end is pressed down under the gravity of the fuel-fired heater structure, the limiting ball is limited to the first end, and the air outlet is in the lowest air supply state. When the adjustment rod is pressed down along the limiting hole, the fixed end drives the fuel-fired heater structure to lift up, so that when the limiting ball is limited to the second end, the air outlet is in the highest air supply state.

[0010] Preferably, the asphalt paving structure includes a frame rotatably mounted at the front end of the vehicle body and an asphalt roller mounted on the frame. One end of the frame is hinged to the outer wall of the vehicle body, and the other end of the frame is fixedly connected to the asphalt roller and drives the asphalt roller to move up and down. The asphalt roller cooperates with the roll material unit for paving. A front wheel is provided at the bottom of the front end of the vehicle body, and a rear wheel is provided at the bottom of the rear end of the vehicle body. The rear wheel is arranged near the rear panel. When the asphalt roller contacts the ground and presses the roll material unit to the ground, the front wheel is suspended above the ground, and the weight of the vehicle body is supported by the asphalt roller and the rear wheel. When the frame rotates around the vehicle body and drives the asphalt roller to move upward, the asphalt roller is suspended above the ground, the front wheel contacts the ground, and the weight of the vehicle body is supported by the front wheel and the rear wheel.

[0011] Preferably, the frame is provided with a spring pin for fixing the frame. The spring pin is arranged near the asphalt roller. The vehicle body is provided with a first fixing hole and a second fixing hole that cooperate with the spring pin. The first fixing hole is arranged below the second fixing hole. When the spring pin cooperates with the first fixing hole to fix the frame, the asphalt roller contacts the ground and presses the roll material unit to the ground. When the frame rotates and the spring pin cooperates with the second fixing hole to fix the frame, the asphalt roller is suspended from the ground.

[0012] Preferably, the support structure includes support frames fixed to both sides of the roll unit, the support frames being fixed to the top of the vehicle body, the roll unit including a rolling shaft and a roll wound on the rolling shaft, the roll being uniformly covered with asphalt that cooperates with the asphalt pressure roller, the two ends of the rolling shaft being respectively limited to the support frames on both sides, and each of the support frames on both sides having a limiting groove for limiting the rolling shaft; the support frames on both sides are respectively provided with a first support wheel and a second support wheel for reducing the rolling friction of the rolling shaft, the first support wheel and the second support wheel are both arranged near the limiting groove, the first support wheel and the second support wheel are arranged side by side laterally, the first support wheel and the second support wheel both roll around their own central axis, and the outer edges of the first support wheel and the second support wheel both abut against the outer wall of the rolling shaft.

[0013] Preferably, the roller structure includes a first roller, a second roller, and support frames respectively disposed on both sides of the first roller and the second roller. The support frames are fixed to the top of the vehicle body and arranged at the front end of the support frame. A first central shaft and a second central shaft are respectively inserted inside the first roller and the second roller, with the first roller arranged at the front end of the second roller. The support frames are provided with fixing holes and moving grooves. The fixing holes are fixed in conjunction with the two ends of the first central shaft. The two ends of the second central shaft are slidably disposed in the moving grooves. The moving grooves are arranged in an arc shape with the two ends higher than the middle. The two ends of the moving grooves are mounting parts for facilitating the passing of the roll material through the second roller, and the middle of the moving grooves is a compaction part for compacting and fixing the roll material. During asphalt paving, the end of the roll material passes through the bottom outer edge of the second roller, the top outer edge of the first roller, and the bottom outer edge of the asphalt roller in sequence, and is then compacted onto the ground by the asphalt roller. The fuel-fired heater structure blows warm air to melt the asphalt on the roll material, and the asphalt is paved onto the ground.

[0014] Preferably, the vehicle body is equipped with a first motor unit and a second motor unit located near the rear wheels. Both the first and second motor units extend outwards to connect with the rear wheels via output shafts. The first and second motor units drive the rear wheels to rotate through the output shafts. The top of the vehicle body is also equipped with a handle for manually pushing the vehicle body to move. The rear panel has ruler units on both sides for aligning the vehicle body's movement trajectory with the ground markings. The ruler unit includes a fixed base and a ruler hinged to the fixed base. One end of the ruler is hinged to the fixed base, and the other end is a free end. The free end rotates around the hinge end and hangs freely, aligning with the ground markings. Wind deflectors are fixed to the bottom of both sides of the front of the vehicle body to prevent flames from escaping from the internal structure of the fuel-fired heater. The wind deflectors are arranged in a bent shape near the asphalt pressure roller.

[0015] Compared with the prior art, the advantages of the present invention are as follows: through the cooperation of the roll material unit, roller structure and asphalt paving structure, the roll material in contact with the ground is subjected to greater weight, and the asphalt on the roll material is laid more evenly and completely on the road surface without repeated rolling. The roller structure pulls, conveys and guides the roll material, so that the roll material is transported smoothly to the asphalt pressure roller, reducing the wrinkles and folds of the roll material, thereby making the asphalt paving more even. Through the air guiding unit and wind direction angle adjustment structure, the air outlet is uniform, and the multi-angle adjustment of the air outlet ensures that the asphalt is evenly exposed to the wind, making the paving more uniform. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is an appendix to the present invention. Figure 1 A magnified schematic diagram of the structure of part A in the diagram; Figure 3 This is a schematic diagram of the structure of the present invention; Figure 4 This is a cross-sectional structural schematic diagram of the present invention; Figure 5 This is a schematic diagram of the structure of the present invention; Figure 6 This is an appendix to the present invention. Figure 5 A magnified schematic diagram of the partial structure of B in the diagram; Figure 7 This is a schematic diagram of the structure of the present invention; Figure 8 This is an appendix to the present invention. Figure 7 A magnified schematic diagram of the structure of C in the middle; Figure 9 This is a schematic diagram of the structure of the present invention.

[0017] Reference numerals: 1. Vehicle body; 2. Air outlet; 3. Air guide; 4. Air guide cavity; 5. Air inlet; 6. Air outlet; 7. First air guide plate; 8. Second air guide plate; 9. Third air guide plate; 10. First air guide channel; 11. Second air guide channel; 12. Third air guide channel; 13. Air intake plate; 14. First heater unit; 15. Second heater unit; 16. Connecting component; 17. Heater duct; 18. Combustion chamber; 19. Air supply section; 20. Adjusting rod; 21. Limiting hole; 22. Rear panel; 23. Fixed end; 24. Adjusting end; 25. Limiting ball; 26. First end; 27. Second end; 28. Frame; 29. 30. Asphalt roller; 31. Front wheel; 32. Rear wheel; 33. Spring pin; 34. First fixing hole; 35. Second fixing hole; 36. Support frame; 37. Rolling shaft; 38. Roll material; 39. Limiting groove; 40. First support wheel; 41. Second support wheel; 42. First roller; 43. Second roller; 44. Support frame; 45. First central shaft; 46. Second central shaft; 47. Fixing hole; 48. Moving groove; 49. Mounting part; 50. Compacting part; 51. First motor unit; 52. Second motor unit; 53. Handle; 54. Fixing seat; 55. Scale; 56. Hinge end; 57. Free end; 58. Wind deflector. Detailed Implementation

[0018] The following drawings disclose several embodiments of the present invention. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0019] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0020] Furthermore, in addition to indicating orientation or positional relationship, the aforementioned terms may also be used to indicate other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this invention according to the specific circumstances.

[0021] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral constructions; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two devices, components, or parts. The connection methods described herein are prior art, without any modifications, and are common knowledge to those skilled in the art. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms, and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, such a combination should be considered nonexistent and not within the scope of protection claimed by this invention.

[0023] like Figures 1 to 9 As shown, this invention provides a hot air fuel-fired equipment for asphalt paving, including a vehicle body 1 for asphalt paving. The vehicle body 1 contains a fuel-fired heater structure for melting asphalt and allowing it to flow onto the road surface for paving. An asphalt paving structure is rotatably mounted at the front end of the vehicle body 1. An air guide structure is also provided inside the vehicle body 1, positioned between the fuel-fired heater structure and the asphalt paving structure. The air guide structure and the fuel-fired heater structure are fixedly connected, and the air guide structure directs the hot air blown by the fuel-fired heater structure to the asphalt paving structure. A wind direction angle adjustment mechanism is provided at the rear end of the fuel-fired heater structure for adjusting the air outlet angle. The structure includes a wind direction angle adjustment structure, one end of which is fixedly connected to the fuel-fired heater structure, and the other end of which is movable and drives the fuel-fired heater structure and the air guide structure to rotate synchronously. The top of the vehicle body 1 is equipped with a roll material unit and a support structure for supporting and limiting the roll material unit. A roller structure for traction, conveying and guiding the roll material 37 is arranged between the asphalt pavement structure and the support structure. The roller structure is located on the top of the vehicle body 1. After the roll material unit is guided to the ground by the roller structure, the roll material unit is compacted on the road surface by the asphalt pavement structure. The fuel-fired heater structure blows hot air to melt the roll material unit for paving.

[0024] The front end of the fuel-fired heater is provided with an air outlet 2, and the air guide structure is fixed on the air outlet 2. Specifically, the air guide structure includes an air guide component 3, the air guide component 3 has an air guide cavity 4 inside, and the air guide component 3 has an air inlet 5 and an air outlet 6 at both ends, respectively. The air inlet 5 and the air outlet 2 are connected, and the air outlet 6 is aligned with the asphalt pavement structure. The air guide cavity 4 is fixedly provided with a first air guide unit and a second air guide unit.

[0025] The air outlet 6 is detachably equipped with an air outlet mesh. The air outlet mesh is limited on the air outlet 6 and can be detached and slid out from the side along the long axis of the air outlet 6 for easy replacement and cleaning. The air outlet mesh is composed of two iron sheets with a layer of high-temperature resistant stainless steel mesh sandwiched in between. Its main functions are: 1. to prevent flame leakage, and to ensure that incompletely burned products are fully burned at the high temperature of the air outlet mesh; 2. to maintain a more uniform temperature and maintain a high temperature in the air outlet 6; 3. to better help heat the roll material 37 with the generated radiation energy.

[0026] The first air guiding unit includes a first air guiding plate 7, a second air guiding plate 8, and a third air guiding plate 9. A first air guiding channel 10 is formed between the first air guiding plate 7 and the second air guiding plate 8, a second air guiding channel 11 is formed between the second air guiding plate 8 and the third air guiding plate 9, and a third air guiding channel 12 is formed between the third air guiding plate 9 and the side wall of the air guiding component 3. Specifically, the first air guiding channel 10, the second air guiding channel 11, and the third air guiding channel 12 are all connected to the air inlet 5 and the air outlet 6. The second air guiding unit includes at least three air guiding plates 13 fixedly disposed in the first air guiding channel 10, the second air guiding channel 11, and the third air guiding channel 12. The air guiding plates 13 are perpendicular to the bottom surface of the air guiding cavity 4 and arranged close to the air outlet 6.

[0027] The edge of the third air guide plate 9 furthest from the air outlet 6 is aligned with the vertical center axis of the air inlet 5. The first air guide plate 7, the second air guide plate 8 and the third air guide plate 9 are all arranged at an angle relative to the surface perpendicular to the air inlet 5. That is, half of the hot air that enters the air guide cavity 4 through the air inlet 5 is blown out of the air outlet 6 through the third air guide channel 12, and the other half is blown out of the air outlet 6 through the first air guide channel 10 and the second air guide channel 11. The air guide plate 13 is in the shape of a hollow trapezoid.

[0028] The structure of the fuel-fired heater includes a first heater unit 14 and a second heater unit 15, which are connected by a connector 16. Specifically, both the first heater unit 14 and the second heater unit 15 include a heater duct 17. The heater duct 17 is divided into a combustion chamber 18 and an air supply section 19. The combustion chamber 18 is located in front of the air supply section 19, and the air outlet 2 is located at the front end of the combustion chamber 18. The function of the air supply section 19 is to dissipate heat and blow the hot air generated by the combustion chamber 18 to the front end.

[0029] The internal structure of the combustion chamber 18 and the working principle of generating hot air, as well as the working principle of the air supply section 19 for dissipating heat from the fuel-fired heater structure, are common and easily conceived techniques used by those skilled in the art, and therefore will not be elaborated upon further.

[0030] The wind direction angle adjustment structure includes an adjustment rod 20 and a limiting hole 21. A rear back plate 22 is provided on the rear side wall of the vehicle body 1. The limiting hole 21 is L-shaped and opened on the rear back plate 22. The two ends of the adjustment rod 20 are a fixed end 23 and an adjustment end 24, respectively. The fixed end 23 is fixedly connected to the connector 16. The adjustment end 24 is fixedly provided with a limiting ball 25 that cooperates with the limiting hole 21 for limiting. Specifically, the two ends of the limiting hole 21 are a first end 26 and a second end 27, respectively. The first end 26 is arranged on the upper part of the second end 27. When the fixed end 23 is pressed down under the gravity of the fuel-fired heater structure, the limiting ball 25 is limited to the first end 26, and the air outlet 6 is in the lowest air supply state. When the adjustment rod 20 is pressed down along the limiting hole 21, the fixed end 23 drives the fuel-fired heater structure to rise, so that when the limiting ball 25 is limited to the second end 27, the air outlet 6 is in the highest air supply state. Meanwhile, in the working state, the limiting ball 25 is limited to the first end 26. After the construction is completed and the work is finished, when the asphalt roller 29 is lifted, the front wheel 30 in front of the vehicle body 1 will be lowered to contact the ground. At this time, if the fuel-fired heater structure and the air guide structure are still in the lowest air supply state, it may cause these two structures to come into contact with the ground and collide, resulting in damage to the parts and inconvenience for transportation. Therefore, it is necessary to press down the adjusting rod 20 along the limiting hole 21 to lift the fuel-fired heater structure and the air guide structure for convenient transportation.

[0031] The asphalt paving structure includes a frame 28 rotatably mounted at the front end of the vehicle body 1 and an asphalt roller 29 mounted on the frame 28. One end of the frame 28 is hinged to the outer wall of the vehicle body 1, and the other end of the frame 28 is fixedly connected to the asphalt roller 29 and drives the asphalt roller 29 to move up and down. The asphalt roller 29 cooperates with the roll material unit for paving. Specifically, a front wheel 30 is provided at the bottom of the front end of the vehicle body 1, and a rear wheel 31 is provided at the bottom of the rear end of the vehicle body 1. The rear wheel 31 is arranged near the rear back panel 22. When the asphalt roller 29 contacts the ground and presses the roll material unit to the ground, the front wheel 30 is suspended above the ground, and the weight of the vehicle body 1 is supported by the asphalt roller 29 and the rear wheel 31. When the frame 28 rotates around the vehicle body 1 and drives the asphalt roller 29 to move upward, the asphalt roller 29 is suspended above the ground, the front wheel 30 contacts the ground, and the weight of the vehicle body 1 is supported by the front wheel 30 and the rear wheel 31.

[0032] The frame 28 is provided with a spring pin 32 for fixing the frame 28. The spring pin 32 is arranged near the asphalt roller 29. The vehicle body 1 is provided with a first fixing hole 33 and a second fixing hole 34 that cooperate with the spring pin 32. The first fixing hole 33 is arranged below the second fixing hole 34. Specifically, when the spring pin 32 cooperates with the first fixing hole 33 to fix the frame 28, the asphalt roller 29 contacts the ground and presses the roll material unit to the ground. When the frame 28 rotates and the spring pin 32 cooperates with the second fixing hole 34 to fix the frame 28, the asphalt roller 29 is suspended from the ground.

[0033] The support structure includes support frames 35 fixed to both sides of the roll unit. The support frames 35 are fixed to the top of the vehicle body 1. The roll unit includes a rolling shaft 36 and a roll 37 wound on the rolling shaft 36. Asphalt that cooperates with the asphalt pressure roller 29 is evenly spread on the roll 37. The two ends of the rolling shaft 36 are respectively limited to the support frames 35 on both sides. Each of the support frames 35 on both sides is provided with a limiting groove 38 for limiting the rolling shaft 36. Specifically, the support frames on both sides are respectively provided with a first support wheel 39 and a second support wheel 40 for reducing the rolling friction of the rolling shaft 36. The first support wheel 39 and the second support wheel 40 are both arranged near the limiting groove 38. The first support wheel 39 and the second support wheel 40 are arranged side by side laterally. The first support wheel 39 and the second support wheel 40 both roll around their own central axis. The outer edges of the first support wheel 39 and the second support wheel 40 are both in contact with the outer wall of the rolling shaft 36.

[0034] The roller structure includes a first roller 41, a second roller 42, and support frames 43 respectively disposed on both sides of the first roller 41 and the second roller 42. The support frames 43 are fixed to the top of the vehicle body 1 and are arranged at the front end of the support frame 35. A first central shaft 44 and a second central shaft 45 are respectively inserted inside the first roller 41 and the second roller 42. The first roller 41 is arranged at the front end of the second roller 42. The support frame 43 has a fixing hole 46 and a moving groove 47. The fixing hole 46 is fixed with both ends of the first central shaft 44, and the two ends of the second central shaft 45 are slidable. The moving groove 47 is arranged in an arc shape with both ends higher than the middle. The two ends of the moving groove 47 are mounting parts 48 for facilitating the passing of the roll material 37 through the winding of the second roller 42, and the middle of the moving groove 47 is a compaction part 49 for compacting and fixing the roll material 37. Specifically, during asphalt paving, the end of the roll material 37 passes through the bottom outer edge of the second roller 42, the top outer edge of the first roller 41 and the bottom outer edge of the asphalt pressure roller 29 in sequence, and is then compacted onto the ground by the asphalt pressure roller 29. The fuel-fired heater blows out warm air to melt the asphalt on the roll material 37, and the asphalt is paved onto the ground.

[0035] The vehicle body 1 is equipped with a first motor unit 50 and a second motor unit 51 located near the rear wheel 31. Both the first motor unit 50 and the second motor unit 51 extend outwards with output shafts connected to the rear wheel 31. The first motor unit 50 and the second motor unit 51 drive the rear wheel 31 to rotate through the output shafts. The top of the vehicle body 1 is also equipped with a handle 52 for manually pushing the vehicle body 1 to move. Specifically, the rear panel 22 has ruler 54 units on both sides for aligning the movement trajectory of the vehicle body 1 with the ground markings. The ruler 54 unit includes a fixed base 53 and a ruler 54 hinged to the fixed base 53. One end of the ruler 54 hinged to the fixed base 53 is the hinge end 55, and the other end of the ruler 54 is the free end 56. The free end 56 rotates around the hinge end 55 and hangs freely, aligning with the ground markings. The vehicle body 1 is equipped with a locking structure that is connected and fixed to the free end 56. When the vehicle body 1 is in a stopped state, the free end 56 is rotated around the hinge end 55 until the free end 56 is locked into the locking structure. When the vehicle body 1 is in a working state, the user can remove the free end 56 from the locking structure and let the free end 56 hang freely and align with the ground marking. The bottom of both sides of the front end of the vehicle body 1 is equipped with a baffle plate 57 to prevent the flame inside the fuel-fired heater structure from escaping. The baffle plate 57 is arranged in a bent shape near the asphalt pressure roller 29. The baffle plate 57 is also used to prevent the hot air generated by the fuel-fired heater structure from melting the front wheel 30. At the same time, the baffle plate 57 is used to delay the heat dissipation generated by the fuel-fired heater structure and extend the heating time of the roll material 37 so that the asphalt on the roll material 37 melts more thoroughly.

[0036] The working principle of this invention is as follows: The freely rotatable end of the frame 28 is lifted upwards until the spring pin 32 aligns with the second fixing hole 34 and the spring pin 32 is inserted into the second fixing hole 34, thus fixing the frame 28. At this time, the front wheel 30 is in contact with the ground, and the weight of the vehicle body 1 is supported by the front wheel 30 and the rear wheel 31. The end of the roll material 37 wound on the rolling shaft 36 is pulled, and the two ends of the second central shaft 45, which passes through the second roller 42, are slid to the mounting portions 48 at both ends of the moving groove 47. After the end of the roll material 37 passes through the bottom of the second roller 42 and the top of the first roller 41 respectively, the end of the roll material 37 is allowed to hang down naturally on the ground. The two ends of the second central shaft 45 move from the moving groove 47... The mounting portions 48 at both ends slide to the compaction portion 49 in the middle, so that the second roller 42 compacts the roll material 37. At this time, the roll material 37 is in contact with the outer wall of the first roller 41 and the outer wall of the second roller 42. The spring pin 32 is pulled out from the second fixing hole 34, and the end of the frame 28 that can rotate freely is lowered down until the spring pin 32 is aligned with the first fixing hole 33 and the spring pin 32 is inserted into the first fixing hole 33 to fix the frame 28. At this time, the asphalt pressure roller 29 compacts the roll material 37, the front wheel 30 is lifted from the ground, and the weight of the vehicle body 1 is supported by the asphalt pressure roller 29 and the rear wheel 31. The asphalt pressure roller 29 transfers half of the weight of the vehicle body 1 to the roll material 37, making the roll material 37 more firmly laid. The vehicle body 1 begins to move, and the fuel-fired heater structure begins to work. The adjusting rod 20 is moved along the limiting hole 21. When the adjusting end 24 of the adjusting rod 20 slides to the first end 26, the fixed end 23 of the adjusting rod 20 is pressed down under the gravity of the fuel-fired heater structure. The limiting ball 25 is limited to the first end 26. The fuel-fired heater structure drives the air guide 3 to move synchronously. The air outlet 6 is in the lowest air supply state. The combustion chamber 18 of the fuel-fired heater structure generates hot air. The hot air enters the air guide cavity 4 through the air outlet 2 and the air inlet 5 respectively. Under the guidance of the first air guide unit and the second air guide unit in the air guide cavity 4, the hot air is evenly discharged from the air outlet 6 to the asphalt roller 29, blowing the asphalt on the roll 37 at the bottom of the asphalt roller 29 until it melts. During the movement of vehicle body 1, the free ends 56 of the scales 54 on both sides of the rear panel 22 are rotated around the hinge end 55, so that the free ends 56 hang freely until they contact the ground. The free ends 56 are always aligned with the ground markings to ensure that vehicle body 1 moves in a straight line and that the asphalt laid is in a straight line along the road.

[0037] When the fuel-fired heater works, it blows hot air to melt the asphalt on the roll 37 at the bottom of the asphalt roller 29. Under the gravity of the asphalt roller 29, the roll 37 is laid on the ground. The roll 37 rolls on the roller 36. The outer edge of the roller 36 is in contact with the outer wall of the first support roller 39 and the outer wall of the second support roller 40. The rolling of the roller 36 on the first support roller 39 and the second support roller 40 reduces the rolling friction of the roller 36.

[0038] The vehicle body 1 can be driven to rotate by the first motor group 50 and the second motor group 51 respectively, or the user can manually push the vehicle body 1 to move by the handle 52.

[0039] After finishing the work, pull the spring pin 32 out of the first fixing hole 34, lift the freely rotatable end of the frame 28 upwards until the spring pin 32 is aligned with the second fixing hole 33, and insert the spring pin 32 into the second fixing hole 33 to fix the frame 28. At this time, the asphalt pressure roller 29 is raised, and the front wheel 30 is lowered to contact the ground. The weight of the vehicle body 1 is supported by the front wheel 30 and the rear wheel 31. At the same time, move the adjusting rod 20 along the limiting hole 21. When the adjusting end 24 of the adjusting rod 20 slides to the second end 27, the fixing end 23 will ignite. When the oil-fired heater structure is raised, and the limiting ball 25 is positioned at the second end 27, the oil-fired heater structure drives the air guide 3 to be raised simultaneously. Because when the asphalt roller 29 is raised, the front wheel 30 in front of the vehicle body 1 will be lowered to contact the ground. If the oil-fired heater structure and the air guide structure are still in the lowest air supply state at this time, it may cause these two structures to collide with the ground, resulting in damage to the parts and inconvenience for transportation. Therefore, it is necessary to press down the adjusting rod 20 along the limiting hole 21 to raise the oil-fired heater structure and the air guide structure for convenient transportation.

[0040] The advantages of this invention are as follows: through the cooperation of the roll unit, roller structure and asphalt paving structure, the roll 37 in contact with the ground is subjected to greater weight, and the asphalt on the roll 37 is laid more evenly and completely on the road surface without repeated rolling. The roller structure pulls, conveys and guides the roll 37, so that the roll 37 is transported flat to the asphalt pressure roller 29, reducing wrinkles and folds of the roll 37, thereby making the asphalt paving more even. Through the air guiding unit and wind direction angle adjustment structure, the air outlet is uniform, and the multi-angle adjustment of the air outlet ensures that the asphalt is evenly exposed to the wind, making the paving more uniform.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the prior art, and will not be described in detail here.

[0043] The above description is only a preferred embodiment of the present invention. For those skilled in the art, various modifications and variations can be made in the specific implementation and application scope based on the ideas of the present invention. The content of this specification should not be construed as a limitation of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A hot air fuel-fired equipment for laying roll materials, characterized in that: Includes a vehicle body for asphalt paving, with an internal fuel-fired heater structure for melting asphalt and flowing it onto the road surface for paving. The front of the vehicle body has an asphalt pavement structure that rotates. The vehicle body is also equipped with an air guide structure, which is arranged between the fuel-fired heater structure and the asphalt pavement structure. The air guide structure and the fuel-fired heater structure are fixedly connected, and the air guide structure directs the hot air blown out by the fuel-fired heater structure to the asphalt pavement structure. The rear end of the fuel-fired heater is equipped with a wind direction angle adjustment structure for adjusting the air outlet angle. One end of the wind direction angle adjustment structure is fixedly connected to the fuel-fired heater structure, and the other end of the wind direction angle adjustment structure is movable and drives the fuel-fired heater structure and the air guide structure to rotate synchronously. The top of the vehicle body is equipped with a roll material unit and a support structure for supporting and limiting the roll material unit; A roller structure for traction, conveying and guiding the roll material is arranged between the asphalt pavement structure and the supporting structure, and the roller structure is located on the top of the vehicle body; After the roll material unit is guided to the ground by the roller structure, the roll material unit is compacted onto the road surface by the asphalt paving structure, and the fuel-fired heater structure blows hot air to melt the roll material unit for paving.

2. The roller structure for roll material laying according to claim 1, characterized in that: The front end of the fuel-fired heater is provided with an air outlet, and an air guide structure is fixed on the air outlet. The air guide structure includes an air guide component, the inside of which is an air guide cavity. An air inlet and an air outlet are respectively opened at both ends of the air guide component. The air inlet and the air outlet are connected, and the air outlet is aligned with the asphalt pavement structure. A first air guide unit and a second air guide unit are fixedly provided in the air guide cavity.

3. The roller structure for roll material laying according to claim 2, characterized in that: The first air guiding unit includes a first air guiding plate, a second air guiding plate, and a third air guiding plate. A first air guiding channel is formed between the first air guiding plate and the second air guiding plate, a second air guiding channel is formed between the second air guiding plate and the third air guiding plate, and a third air guiding channel is formed between the third air guiding plate and the side wall of the air guiding component. The first air guiding channel, the second air guiding channel, and the third air guiding channel are all connected to the air inlet and the air outlet. The second air guiding unit includes at least three air guiding plates fixedly disposed in the first air guiding channel, the second air guiding channel, and the third air guiding channel. The air guiding plates are perpendicular to the bottom surface of the air guiding cavity and arranged close to the air outlet.

4. A roller structure for roll material laying according to claim 2, characterized in that: The structure of the fuel-fired heater includes a first heater unit and a second heater unit, which are connected by a connector. Both the first heater unit and the second heater unit include a heater duct. The heater duct is divided into a combustion chamber and an air supply section. The combustion chamber is located at the front of the air supply section, and the air outlet is located at the front end of the combustion chamber.

5. A roller structure for roll material laying according to claim 4, characterized in that: The wind direction angle adjustment structure includes an adjustment rod and a limiting hole. A rear panel is provided on the rear side wall of the vehicle body. The limiting hole is L-shaped and opened on the rear panel. The two ends of the adjustment rod are a fixed end and an adjustment end, respectively. The fixed end is fixedly connected to the connector. The adjustment end is fixedly provided with a limiting ball that cooperates with the limiting hole for limiting. The two ends of the limiting hole are a first end and a second end, respectively. The first end is arranged above the second end. When the fixed end is pressed down under the gravity of the fuel-fired heater structure, the limiting ball is limited to the first end, and the air outlet is in the lowest air supply state. When the adjustment rod is pressed down along the limiting hole, the fixed end drives the fuel-fired heater structure to rise, so that when the limiting ball is limited to the second end, the air outlet is in the highest air supply state.

6. A roller structure for roll material laying according to claim 5, characterized in that: The asphalt paving structure includes a frame rotatably mounted at the front of the vehicle body and an asphalt roller mounted on the frame. One end of the frame is hinged to the outer wall of the vehicle body, and the other end of the frame is fixedly connected to the asphalt roller, which moves up and down. The asphalt roller cooperates with the roll material unit for paving. A front wheel is located at the bottom of the front of the vehicle body, and a rear wheel is located at the bottom of the rear of the vehicle body. The rear wheel is positioned near the rear panel. When the asphalt roller contacts the ground and presses the roll material unit to the ground, the front wheel is suspended above the ground, and the weight of the vehicle body is supported by the asphalt roller and the rear wheel. When the frame rotates around the vehicle body and moves the asphalt roller upward, the asphalt roller is suspended above the ground, the front wheel contacts the ground, and the weight of the vehicle body is supported by the front wheel and the rear wheel.

7. A roller structure for roll material laying according to claim 6, characterized in that: The frame is equipped with spring pins for fixing the frame. The spring pins are arranged near the asphalt roller. The vehicle body is equipped with a first fixing hole and a second fixing hole that cooperate with the spring pins. The first fixing hole is arranged below the second fixing hole. When the spring pin cooperates with the first fixing hole to fix the frame, the asphalt roller contacts the ground and presses the roll material unit to the ground. When the frame rotates and the spring pin cooperates with the second fixing hole to fix the frame, the asphalt roller is suspended from the ground.

8. A roller structure for roll material laying according to claim 6, characterized in that: The support structure includes support frames fixed to both sides of the roll unit, the support frames being fixed to the top of the vehicle body, the roll unit including a rolling shaft and a roll of material wound on the rolling shaft, the roll being evenly covered with asphalt that cooperates with the asphalt pressure roller, the two ends of the rolling shaft being respectively limited to the support frames on both sides, and each of the support frames on both sides having a limiting groove for limiting the rolling shaft; the support frames on both sides are respectively provided with a first support wheel and a second support wheel for reducing the rolling friction of the rolling shaft, the first support wheel and the second support wheel are both arranged near the limiting groove, the first support wheel and the second support wheel are arranged side by side laterally, the first support wheel and the second support wheel both roll around their own central axis, and the outer edges of the first support wheel and the second support wheel both abut against the outer wall of the rolling shaft.

9. A roller structure for roll material laying according to claim 8, characterized in that: The roller structure includes a first roller, a second roller, and support frames respectively located on both sides of the first roller and the second roller. The support frames are fixed to the top of the vehicle body and arranged at the front end of the support frame. A first central shaft and a second central shaft are respectively inserted inside the first roller and the second roller, with the first roller located at the front end of the second roller. The support frames have fixing holes and moving grooves. The fixing holes are fixed to both ends of the first central shaft. The two ends of the second central shaft are slidably located in the moving grooves. The moving grooves are arranged in an arc shape with both ends higher than the middle. The two ends of the moving grooves are mounting parts for facilitating the passing of the roll material through the second roller, and the middle of the moving grooves is a compaction part for compacting and fixing the roll material. During asphalt paving, the end of the roll material passes sequentially through the bottom outer edge of the second roller, the top outer edge of the first roller, and the bottom outer edge of the asphalt pressure roller, and is then compacted onto the ground by the asphalt pressure roller. The fuel-fired heater blows warm air to melt the asphalt on the roll material, and the asphalt is laid on the ground.

10. A roller structure for roll material laying according to claim 6, characterized in that: The vehicle body is equipped with a first motor unit and a second motor unit located near the rear wheels. Both the first and second motor units extend outwards to connect with the rear wheels via output shafts. The first and second motor units drive the rear wheels to rotate through the output shafts. A handle for manually pushing the vehicle body is also provided on the top of the vehicle body. On both sides of the rear panel, there are ruler units for aligning the vehicle body's movement trajectory with ground markings. The ruler unit includes a fixed base and a ruler hinged to the fixed base. One end of the ruler is hinged to the fixed base, and the other end is a free end. The free end rotates around the hinge end and hangs freely, aligning with the ground markings. Wind deflectors are fixed to the bottom of both sides of the front of the vehicle body to prevent flames from escaping from the internal structure of the fuel-fired heater. The wind deflectors are arranged in a bent shape near the asphalt pressure roller.

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