A fuel-fired air heater for asphalt paving

Abstract

The utility model discloses a fuel air heater for asphalt paving, including the host box of pushable and with the road paving subassembly of host box connection, the host box is fixed with the control part and the air outlet portion of control portion electric nature control connection in, and the road paving subassembly includes the wind collecting unit and asphalt unit, and the asphalt unit can be arranged on the one side of wind collecting unit far from the host box, and the control part controls the hot air of air outlet portion, and the hot air blows to the asphalt unit through the wind collecting unit, and the asphalt surface on asphalt unit melts and flows to the road surface, and the asphalt is paved on the road surface along the push track of host box. The utility model discloses the structure design is reasonable, because the warm air current will be produced in the warm air current, and the warm air current concentrates and blows from the hot air outlet pipe to the asphalt roll material, makes the asphalt coating on asphalt roll material melt to the road surface, and the warm air current accelerates the drying of road asphalt, reduces the drying time of asphalt, promotes the progress of construction, and improves the practicability of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of municipal road construction, and in particular to a fuel-fired heater for asphalt paving. 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 the government's responsibility 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. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a fuel-fired heater for asphalt paving, based on the current state of the technology.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a fuel-fired heater for asphalt paving, comprising a slidable main unit housing and a paving assembly connected to the main unit housing. The main unit housing is fixedly provided with a control unit and an air outlet connected to the control unit. The paving assembly includes an air collecting unit and an asphalt unit. The asphalt unit is rotatably arranged on the side of the air collecting unit away from the main unit housing. The control unit controls the air outlet to emit hot air. The hot air is blown onto the asphalt unit through the air collecting unit and simultaneously pushes the main unit housing. The asphalt surface on the asphalt unit melts and flows onto the road surface, paving asphalt on the road surface along the pushing trajectory of the main unit housing.

[0006] Preferably, the control unit includes an oil tank and a battery, and the air outlet includes a fuel-fired heater unit for discharging hot air. The fuel-fired heater unit includes at least one fuel-fired heater, which is provided with an air inlet and an air outlet, with the air outlet located on the side near the paving assembly.

[0007] Preferably, the air inlet is connected to the outside, an air intake fan is installed inside the air inlet, an air intake mesh is installed on the air inlet, the air outlet is arranged in front of the air collection unit, an air outlet duct is fixedly attached to the air outlet, and an air outlet grille is provided on the side of the air outlet duct near the air collection unit. The hot air generated by the fuel-fired heater is blown into the air collection unit through the air outlet duct and the air outlet grille in sequence.

[0008] Preferably, the air collection unit includes a hot air outlet duct, a hot air outlet cavity aligned with the outlet duct is provided inside the hot air outlet duct, a partition is provided between two adjacent hot air outlet cavities, an air outlet plate is provided on the side of the hot air outlet cavity near the air outlet, an opening corresponding to the size of the outer edge of the outlet duct is opened on the air outlet plate, an air outlet grille is snapped onto the opening, side plates are provided on both sides of the hot air outlet duct, and a top plate is provided on the top of the hot air outlet duct, the top plate being arc-shaped.

[0009] Preferably, the asphalt unit includes an asphalt roller and an asphalt roll wound around the asphalt roller. Both ends of the asphalt roller are integrally formed with shafts. The shafts are connected to the side plates through a connecting piece. The side plates are provided with a tightening structure for pulling the asphalt unit as a whole towards the hot air outlet cavity.

[0010] Preferably, the tightening structure includes a tightening member and a tightening track fixedly mounted on the side plate. The tightening member and the shaft are connected by a retractable spring. The spring is arranged inside the tightening track. The spring pulls the shaft along the tightening track towards the tightening member. The structure also includes a limiting rod. The two ends of the limiting rod are fixedly mounted on the side plates on both sides. The limiting rod is always in contact with the asphalt roll material.

[0011] Preferably, the main unit housing is provided with a handle for pushing, and the bottom of the main unit housing is provided with rollers for moving. The bottom surface of the hot air outlet is inclined downward towards the asphalt unit, and the bottom surface of the hot air outlet does not contact the ground, while the bottom surface of the asphalt unit is in contact with the ground.

[0012] Compared with the prior art, the advantages of this utility model are as follows: by setting up a warm air blower, the operation of the warm air blower will generate a warm airflow, which is concentrated and blown out from the hot air outlet to the asphalt roll, causing the asphalt coating on the asphalt roll to melt onto the road surface. In addition, the warm airflow accelerates the drying of the asphalt on the road surface, reduces the asphalt drying time, promotes the progress of construction, and improves the practicality of the equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is an appendix to the utility model Figure 2 A magnified schematic diagram of the structure of part A in the diagram; Figure 4 This is an exploded structural diagram of the present invention; Figure 5 This is a schematic diagram of the structure of this utility model; Figure 6 This is an exploded structural diagram of the paving component of this utility model; Figure 7 This is a schematic diagram of the structure of this utility model.

[0014] Reference numerals: 1. Main unit housing; 2. Paving assembly; 3. Fuel tank; 4. Battery; 5. Fuel-fired heater; 6. Air inlet; 7. Air outlet; 8. Air inlet fan; 9. Air inlet grille; 10. Air outlet duct; 11. Air outlet grille; 12. Hot air outlet duct; 13. Hot air outlet cavity; 14. Partition; 15. Air outlet plate; 16. Opening; 17. Side plate; 18. Top plate; 19. Asphalt roller; 20. Asphalt roll; 21. Shaft; 22. Connecting piece; 23. Tightening component; 24. Tightening track; 25. Spring; 26. Limiting rod; 27. Handle; 28. Roller; 29. ​​U-shaped opening; 30. Quick-release buckle unit. Detailed Implementation

[0015] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0016] It should be noted that all directional indicators in this utility model embodiment, 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 indicator will also change accordingly.

[0017] 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. For those skilled in the art, the specific meaning of these terms in this utility model can be understood according to the specific circumstances.

[0018] 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 structures; 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 existing technologies 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 utility model based on the specific circumstances.

[0019] Furthermore, in this utility model, 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 utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their 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, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0020] like Figures 1 to 7 As shown, this utility model provides a fuel-fired heater 5 for asphalt paving, including a slidable main unit housing 1 and a paving assembly 2 connected to the main unit housing 1. Specifically, the main unit housing 1 is fixedly provided with a control unit and an air outlet connected to the control unit. The paving assembly 2 includes an air collecting unit and an asphalt unit. The asphalt unit is rotatably arranged on the side of the air collecting unit away from the main unit housing 1. The control unit controls the air outlet to emit hot air. The hot air is blown onto the asphalt unit through the air collecting unit and simultaneously pushes the main unit housing 1. The asphalt surface on the asphalt unit melts and flows onto the road surface, paving asphalt on the road surface along the pushing trajectory of the main unit housing 1.

[0021] The control unit includes an oil tank 3 and a battery 4, and the air outlet includes a set of fuel-fired heaters 5 for discharging hot air; specifically, the set of fuel-fired heaters 5 includes at least one fuel-fired heater 5, and the fuel-fired heater 5 is provided with an air inlet 6 and an air outlet 7, with the air outlet 7 arranged on one side near the paving assembly 2.

[0022] The electrical control connection relationship and internal control working principle between the fuel tank 3, the battery 4 and the fuel heater 5 are common and easily conceived technical means for those skilled in the art, so they will not be elaborated on further.

[0023] The air inlet 6 is connected to the outside. An air intake fan 8 is installed inside the air inlet 6. An air intake mesh 9 is installed on the air inlet 6. The air outlet 7 is arranged in front of the air collection unit. An air outlet duct 10 is fixedly attached to the air outlet 7. Specifically, an air outlet grille 11 is provided on the side of the air outlet duct 10 near the air collection unit. The hot air generated by the fuel-fired heater 5 is blown into the air collection unit through the air outlet duct 10 and the air outlet grille 11 in sequence.

[0024] The air collection unit includes a hot air outlet duct 12, which is arc-shaped and effectively collects hot air. The hot air outlet duct 12 has a hot air outlet cavity 13 aligned with the outlet duct 10. A partition 14 is provided between two adjacent hot air outlet cavities 13. An air outlet plate 15 is provided on the side of the hot air outlet cavity 13 near the air outlet 7. Specifically, the air outlet plate 15 has an opening 16 corresponding to the size of the outer edge of the outlet duct 10. An air outlet grille 11 is snapped onto the opening 16. Side plates 17 are provided on both sides of the hot air outlet duct 12. A top plate 18 is provided on the top of the hot air outlet duct 12, and the top plate 18 is arc-shaped.

[0025] The asphalt unit includes an asphalt roller 19 and an asphalt roll 20 wound around the asphalt roller 19. The asphalt roll 20 is uniformly coated with an asphalt coating. The asphalt roller 19 has a shaft 21 integrally formed at both ends. Specifically, the shaft 21 is connected to the side plate 17 through a connecting piece 22. The side plate 17 is provided with a tightening structure for pulling the asphalt unit as a whole towards the hot air outlet 13.

[0026] The tightening structure includes a tightening member 23 and a tightening track 24 fixed on the side plate 17. The tightening member 23 and the shaft 21 are connected by a retractable spring 25. The spring 25 is arranged in the tightening track 24. The spring 25 pulls the shaft 21 along the tightening track 24 toward the tightening member 23. Specifically, it also includes a limiting rod 26. The two ends of the limiting rod 26 are fixed on the side plates 17 on both sides. The limiting rod 26 is always in contact with the asphalt roll material 20.

[0027] The end of the tightening track 24 away from the tightening member 23 is connected to the edge of the connecting piece 22 and has a U-shaped opening 29. The shaft 21 is fastened and installed in the tightening track 24 through the U-shaped opening 29. Specifically, the asphalt unit can be detached from the U-shaped opening 29 through the shaft 21, so that the asphalt unit can be disassembled and replaced after the asphalt roll 20 is used up. The disassembly and installation are convenient and the replacement speed is fast.

[0028] The air outlet duct 10 and the side wall of the main unit housing 1 are connected by several quick-release buckle units 30, which enables the quick installation and removal of the air outlet duct 10 on the main unit housing 1.

[0029] The main unit housing 1 is provided with a handle 27 for pushing, and the bottom of the main unit housing 1 is provided with rollers 28 for moving; specifically, the bottom surface of the hot air outlet duct 12 is inclined downward towards the asphalt unit, the bottom surface of the hot air outlet duct 12 does not contact the ground, and the bottom surface of the asphalt unit is in contact with the ground.

[0030] This structure can also be used for laying materials in various scenarios such as roof waterproofing, color steel tile waterproofing, wooden house waterproofing, and tile house waterproofing by replacing the asphalt roll 20 on the paving component 2 with rolls of other materials.

[0031] The working principle of this utility model is as follows: Before the user carries out the paving process, he first turns on the fuel-fired heater 5 through the control unit to start it working. The fuel-fired heater 5 generates hot air. The hot air passes through the air outlet 7 and the air outlet duct 10 in sequence, and is blown out from the air outlet grille 11 into the hot air outlet cavity 13 in the hot air outlet duct 12. The hot air outlet cavity 13 plays the role of concentrating the hot air and blowing it out evenly. The hot air in the hot air outlet cavity 13 is then blown out onto the asphalt roll 20. Under the action of the hot air, the asphalt coating on the asphalt roll 20 melts onto the ground to be paved. The hot air then blows onto the asphalt on the ground to accelerate its drying process. As the asphalt melts onto the ground, the user pushes the entire machine away from the asphalt roll 20 using the handle 27 and rollers 28 on the main unit housing 1. The asphalt roll 20 rolls around the shaft 21 while the main unit housing 1 moves synchronously towards the unpaved section of road. Simultaneously, the fuel-fired heater 5 continues to operate, laying asphalt on the unpaved section according to the aforementioned principle. During this process, the asphalt roll 20 becomes thinner due to the reduction in asphalt coating. To prevent uneven melting of the asphalt on the roll 20 relative to the paved section due to the increased distance between the hot airflow from the hot air outlet 13 and the asphalt roll 20 as it thins, measures are taken. This results in uneven asphalt paving on the ground. Therefore, a tightening structure was designed. Based on the distance between the limiting rod 26 and the hot air outlet chamber 13, when the asphalt roll 20 becomes thinner, the spring 25 pulls the asphalt roll 20 inward through the shaft 21. That is, the spring 25 contracts, and the shaft 21 moves along the tightening track 24 toward the tightening member 23. The shaft 21 drives the asphalt roll 20 to move toward the limiting rod 26, so that the outer wall of the asphalt roll 20 always contacts the limiting rod 26, ensuring that the distance between the asphalt roll 20 and the hot air outlet chamber 13 remains unchanged. This allows the hot air to melt the asphalt coating evenly, ensuring that a uniform amount of asphalt is paved on the ground.

[0032] The advantages of this utility model are as follows: by setting up a warm air blower, the operation of the warm air blower will generate a warm airflow, which is concentrated and blown out from the hot air outlet duct 12 onto the asphalt roll 20, causing the asphalt coating on the asphalt roll 20 to melt onto the road surface. In addition, the warm airflow accelerates the drying of the asphalt on the road surface, reduces the asphalt drying time, promotes the progress of construction, and improves the practicality of the equipment.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is 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.

[0034] 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 existing technology, and will not be described in detail here.

[0035] The above description is only a preferred embodiment of this utility model. For those skilled in the art, various modifications and variations can be made in the specific implementation and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A fuel-fired heater for asphalt paving, comprising a shovelable main unit housing and a paving assembly connected to the main unit housing, characterized in that: The main unit is fixedly equipped with a control unit and an air outlet connected to the control unit. The paving assembly includes an air collecting unit and an asphalt unit. The asphalt unit is rotatably arranged on the side of the air collecting unit away from the main unit. The control unit controls the air outlet to emit hot air. The hot air is blown onto the asphalt unit through the air collecting unit and pushes the main unit. The asphalt surface on the asphalt unit melts and flows onto the road surface. Asphalt is paved onto the road surface along the pushing trajectory of the main unit.

2. The fuel-fired heater for asphalt paving according to claim 1, characterized in that: The control unit includes an oil tank and a battery, and the air outlet includes a fuel-fired heater unit for discharging hot air. The fuel-fired heater unit includes at least one fuel-fired heater, which has an air inlet and an air outlet, with the air outlet located on the side near the paving assembly.

3. A fuel-fired heater for asphalt paving according to claim 2, characterized in that: The air inlet is connected to the outside, and an air intake fan is installed inside the air inlet. An air intake mesh is installed on the air inlet, and the air outlet is arranged in front of the air collection unit. An air outlet duct is fixedly attached to the air outlet, and an air outlet grille is provided on the side of the air outlet duct near the air collection unit. The hot air generated by the fuel-fired heater is blown into the air collection unit through the air outlet duct and the air outlet grille in sequence.

4. A fuel-fired heater for asphalt paving according to claim 3, characterized in that: The air collection unit includes a hot air outlet duct, a hot air outlet cavity aligned with the outlet duct is provided inside the hot air outlet duct, a partition is provided between two adjacent hot air outlet cavities, an air outlet plate is provided on the side of the hot air outlet cavity near the air outlet, an opening corresponding to the size of the outer edge of the outlet duct is opened on the air outlet plate, an air outlet grille is snapped onto the opening, side plates are provided on both sides of the hot air outlet duct, and a top plate is provided on the top of the hot air outlet duct, the top plate being arc-shaped.

5. A fuel-fired heater for asphalt paving according to claim 4, characterized in that: The asphalt unit includes an asphalt roller and an asphalt roll wound around the asphalt roller. Both ends of the asphalt roller are integrally formed with shafts. The shafts are connected to the side plates through a connecting piece. The side plates are provided with a tightening structure for pulling the asphalt unit as a whole towards the hot air outlet cavity.

6. A fuel-fired heater for asphalt paving according to claim 5, characterized in that: The tightening structure includes a tightening component and a tightening track fixedly mounted on the side plates. The tightening component and the shaft are connected by a retractable spring. The spring is arranged inside the tightening track. The spring pulls the shaft along the tightening track towards the tightening component. It also includes a limiting rod, with both ends of the limiting rod fixedly mounted on the side plates on both sides. The limiting rod is always in contact with the asphalt roll material.

7. A fuel-fired heater for asphalt paving according to claim 4, characterized in that: The main unit housing is equipped with a handle for pushing, and the bottom of the main unit housing is equipped with rollers for moving. The bottom surface of the hot air outlet is inclined downward towards the asphalt unit, and the bottom surface of the hot air outlet does not contact the ground, while the bottom surface of the asphalt unit is in contact with the ground.

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