Asphalt pavement crack repairing device

Abstract

The invention provides an asphalt pavement crack repairing device, and belongs to the field of asphalt pavement crack repairing devices.The asphalt pavement crack repairing device comprises a bottom plate, the top of the bottom plate is fixedly connected with a protective cover, a heat conduction bin, a wind shield and a combustion seat, the heat conduction bin and the wind shield are located on the inner side of the protective cover, and the combustion seat is located on the inner side of the wind shield; heat conduction oil is arranged between the storage bin and the heat conduction bin, a temperature control cylinder is arranged on the outer side wall of the heat conduction bin in a communicating mode, and the temperature control assembly is arranged on the inner side of the temperature control cylinder and used for controlling the temperature of the heat conduction oil in the heat conduction bin; the heating assembly is arranged above the bottom plate, and the heating assembly is used for heating the storage bin; and the material conveying assembly is arranged on one side of the protective cover, and the material conveying assembly is used for conveying raw materials for repairing the cracks. According to the asphalt pavement crack repairing device, the device moves in the asphalt pavement crack direction by pushing the handrail, the operation can be completed by one person, and the labor cost is saved.

Description

Technical Field

[0001] The invention relates to the field of asphalt pavement crack repairing devices, and in particular to an asphalt pavement crack repairing device. Background Art

[0002] There are many reasons for cracks in asphalt pavement. If the compaction degree of some parts is not enough during the construction process, cracks are likely to occur under repeated rolling of vehicles. Environmental factors are also critical. Temperature changes have a great impact on asphalt pavement. In cold areas, low temperatures in winter cause asphalt pavement to shrink. When the shrinkage stress exceeds the tensile strength of the pavement material, transverse cracks will occur. In areas with large temperature differences between day and night, the road surface is repeatedly subjected to temperature expansion and contraction cycles, which accelerates the formation and development of cracks. If rainwater penetrates into the cracks, it will reduce the adhesion between asphalt and aggregate, weaken the strength of the pavement structure, and further promote the formation and expansion of cracks under the action of vehicle loads.

[0003] Asphalt pavement repair equipment plays an important role in maintaining the road surface. It can heat the asphalt to an ideal state and inject it into the cracks to restore the smoothness and integrity of the road surface. However, the device also has certain shortcomings. Its operation usually requires the coordinated operation of multiple people. The movement of the storage bin, the temperature of the filling material and the work of filling the cracks need to be controlled separately, which takes up a lot of human resources.

[0004] How to invent a repair device for asphalt pavement cracks to improve these problems has become an urgent problem to be solved by technicians in this field. Summary of the invention

[0005] In order to make up for the above shortcomings, the present invention provides a device for repairing cracks in an asphalt pavement, aiming to improve the problems mentioned in the above background.

[0006] The present invention is achieved in that: The present invention provides a repairing device for cracks in asphalt pavement, comprising a base plate, a protective cover, a heat transfer bin, a wind shield and a combustion seat being fixedly connected to the top of the base plate, the heat transfer bin and the wind shield being located on the inner side of the protective cover, the combustion seat being located on the inner side of the wind shield, a material storage bin being arranged inside the heat transfer bin, the material storage bin and the heat transfer bin being sealed, heat transfer oil being arranged between the material storage bin and the heat transfer bin, a temperature control cylinder being arranged on the outer side wall of the heat transfer bin, and further comprising: a temperature control component, the temperature control component being arranged on the inner side of the temperature control cylinder, the temperature control component being used to control the temperature of the heat transfer oil inside the heat transfer bin; a heating component, the heating component being arranged above the base plate, the heating component being used to heat the material storage bin; a material conveying component, the material conveying component being arranged on one side of the protective cover, the material conveying component being used to convey raw materials for repairing cracks.

[0007] Preferably, a heat insulating layer is provided between the protective cover and the heat conducting chamber, and the position where the bottom of the heat conducting chamber contacts the base plate is made of ceramic material.

[0008] Preferably, the temperature control component includes a plunger seat slidably arranged on the inner side wall of the temperature control cylinder, the side wall of the plunger seat is fixedly connected with a stabilizing sleeve, a moving rod is slidably arranged in the stabilizing sleeve, the end of the moving rod is fixedly connected with a sealing seat, a through hole is opened on the sealing seat, the side wall of the temperature control cylinder is fixedly connected with a fixing seat, a conical hole is arranged in the fixing seat, the outer side wall of the plunger seat is fixedly connected with a hard spring, and the end of the hard spring is fixedly connected to the moving rod.

[0009] Preferably, the temperature control component also includes a rotating shaft rotatably connected to the inner wall of the temperature control cylinder, the rotating shaft is rotatably connected to a push rack, the bottom end of the push rack is rotatably connected to an auxiliary rod, the end of the auxiliary rod is rotatably connected to a pull rod, the inner wall of the temperature control cylinder is fixedly connected to a connecting seat, the outer wall of the connecting seat is slidably connected to the first trigger rod, the pull rod passes through the fixed seat and the connecting seat and is slidably connected to the fixed seat and the connecting seat, the end of the pull rod is embedded with the outer wall of the first trigger rod, the first trigger rod is connected to the inner wall of the temperature control cylinder through a tension spring, a second trigger rod is slidably connected in the connecting seat, the top end of the first trigger rod is embedded in the inner side of the second trigger rod, the end of the second trigger rod is fixedly connected to a baffle, the outer wall of the baffle is provided with a sealing gasket, the outer wall of the baffle is fixedly connected to a reset spring, and the end of the reset spring is fixedly connected to the outer wall of the connecting seat.

[0010] Preferably, the rotating shaft is closer to the top end of the push frame and farther from the bottom end of the push frame.

[0011] Preferably, a connecting pipe is provided on the outer side wall of the temperature control cylinder, the connecting pipe is connected to the combustion seat, and the connection position between the connecting pipe and the temperature control cylinder is located between the plunger seat and the fixing seat.

[0012] Preferably, an armrest is fixedly connected to the top of the base plate, a console is fixedly connected to the top of the armrest, and universal wheels are arranged at the bottom of the base plate.

[0013] Preferably, a cover plate is fixedly connected to the top of the storage bin, a thermometer is provided on the cover plate, a handle is rotatably connected to the cover plate, a stirring rod is fixedly connected to the bottom of the handle, the stirring rod is located inside the storage bin, a plurality of blades are fixedly connected to the outer wall of the stirring rod, and a through pipe is provided on the storage bin.

[0014] Preferably, the heating assembly includes a load-bearing frame fixedly connected to the base plate, the top of the load-bearing frame is fixedly connected to a load-bearing seat, a gas tank is arranged on the inner side of the load-bearing seat, and the gas outlet of the gas tank is connected to the temperature control cylinder through a gas pipe.

[0015] Preferably, the feeding assembly includes a generator fixedly connected to the base plate, the outer wall of the protective cover is fixedly connected to a support seat, a gear pump is arranged on the inner side of the support seat, the top of the support seat is fixedly connected to a fixing frame, the top of the fixing frame is fixedly connected to a motor, the motor and the gear pump are connected by a magnetic coupling, the bottom of the support seat is fixedly connected to a discharge pipe and a filler, and the discharge pipe is connected to the output port of the gear pump.

[0016] The beneficial effect of the present invention is that the device can be moved along the direction of the cracks in the asphalt pavement by pushing the handrail, and the operation can be completed by one person, thus saving labor costs.

[0017] The increased heated volume of the heat transfer oil pushes the action of the plunger seat, causing the sealing seat to block the tapered hole on the fixed seat, so that the gas can only flow from the through-hole position on the sealing seat, keeping the flame of the combustion seat at a minimum value, which is used to maintain the temperature of the heat transfer oil and reduce the risk of burning of the asphalt repair material; if the volume of the heat transfer oil continues to increase, the plunger seat pushes the push frame to release the limit of the second trigger rod, and the reset spring resets when it drives the baffle to completely block the tapered hole on the fixed seat, blocking the gas transmission channel, extinguishing the flame on the combustion seat, and preventing the continuous heating of the heat transfer oil from causing the temperature to be too high, which would cause a large amount of burning of the asphalt repair material. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of a repair device for asphalt pavement cracks provided by an embodiment of the present invention; Figure 2 It is a schematic diagram of the internal structure of a protective cover of a repair device for asphalt pavement cracks provided by an embodiment of the present invention; Figure 3 It is a schematic diagram of the internal structure of a temperature control cylinder of a repair device for asphalt pavement cracks provided by an embodiment of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of a temperature control cylinder of a repair device for asphalt pavement cracks provided by an embodiment of the present invention; Figure 5 This is a schematic diagram of the internal structure of a storage bin of an asphalt pavement crack repair device provided by an embodiment of the present invention; Figure 6 It is a schematic diagram of the structure of a discharge pipe of an asphalt pavement crack repair device provided in an embodiment of the present invention.

[0020] In the figure: 1, bottom plate; 2, protective cover; 3, heat transfer chamber; 4, wind shield; 5, combustion seat; 6, storage bin; 7, temperature control tube; 8, connecting pipe; 10, plunger seat; 11, stabilizing sleeve; 12, moving rod; 13, sealing seat; 14, fixed seat; 15, hard spring; 16, through hole; 21, rotating shaft; 22, push frame; 23, auxiliary rod; 24, pull rod; 25, connecting seat; 26, first trigger rod; 27, The second trigger rod; 28. reset spring; 29. ​​baffle; 30. tension spring; 41. cover plate; 42. thermometer; 43. handle; 44. stirring rod; 45. blade; 46. through pipe; 51. armrest; 52. control console; 53. load-bearing frame; 54. load-bearing seat; 55. gas tank; 56. generator; 57. support seat; 58. fixing frame; 59. transmission motor; 60. discharge pipe; 61. filler. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example, see Figure 1-Figure 2 , a device for repairing cracks in asphalt pavement comprises a base plate 1, a protective cover 2, a heat transfer bin 3, a wind shield 4 and a combustion seat 5 are fixedly connected to the top of the base plate 1, the heat transfer bin 3 and the wind shield 4 are located on the inner side of the protective cover 2, and the combustion seat 5 is located on the inner side of the wind shield 4. A storage bin 6 is arranged inside the heat transfer bin 3, and a sealing arrangement is formed between the storage bin 6 and the heat transfer bin 3. Heat transfer oil is arranged between the storage bin 6 and the heat transfer bin 3, and a temperature control cylinder 7 is arranged on the outer wall of the heat transfer bin 3 in communication, and further comprises: a temperature control component, which is arranged on the inner side of the temperature control cylinder 7, and the temperature control component is used to control the temperature of the heat transfer oil in the heat transfer bin 3; a heating component, which is arranged above the base plate 1, and the heating component is used to heat the storage bin 6; a feeding component, which is arranged on one side of the protective cover 2, and the feeding component is used to transport raw materials for repairing cracks, a heat insulation layer is arranged between the protective cover 2 and the heat transfer bin 3, and the position where the bottom of the heat transfer bin 3 contacts the base plate 1 is made of ceramic material.

[0023] It should be noted that by setting up the heat transfer oil, the heat transfer oil absorbs the heat transferred by the combustion seat 5 and transfers it to the storage bin 6, so that the heat transferred at each position of the storage bin 6 is relatively uniform, ensuring that the asphalt repair material inside the storage bin 6 is heated evenly and preventing the asphalt repair material from being burned.

[0024] Reference Figure 2-Figure 4 The temperature control component includes a plunger seat 10 slidably arranged on the inner wall of the temperature control cylinder 7, a stabilizing sleeve 11 is fixedly connected to the side wall of the plunger seat 10, a moving rod 12 is slidably arranged in the stabilizing sleeve 11, a sealing seat 13 is fixedly connected to the end of the moving rod 12, a through hole 16 is opened on the sealing seat 13, a fixing seat 14 is fixedly connected to the side wall of the temperature control cylinder 7, a conical hole is arranged in the fixing seat 14, a hard spring 15 is fixedly connected to the outer wall of the plunger seat 10, and the end of the hard spring 15 is fixedly connected to the moving rod 12.

[0025] The temperature control assembly also includes a rotating shaft 21 rotatably connected to the inner wall of the temperature control cylinder 7, a push frame 22 is rotatably connected to the rotating shaft 21, an auxiliary rod 23 is rotatably connected to the bottom end of the push frame 22, and a pull rod 24 is rotatably connected to the end of the auxiliary rod 23. The inner wall of the temperature control cylinder 7 is fixedly connected to a connecting seat 25, and the outer wall of the connecting seat 25 is slidably connected to a first trigger rod 26. The pull rod 24 passes through the fixed seat 14 and the connecting seat 25 and is slidably connected to the fixed seat 14 and the connecting seat 25. The end of the pull rod 24 is embedded in the outer wall of the first trigger rod 26. The first trigger rod 26 is connected to the inner wall of the temperature control cylinder 7 by a tension spring 30. The connecting seat 25 is fixedly connected to the inner wall of the temperature control cylinder 7, and the outer wall of the connecting seat 25 is slidably connected to the first trigger rod 26. The pull rod 24 passes through the fixed seat 14 and the connecting seat 25 and is slidably connected to the fixed seat 14 and the connecting seat 25. The end of the pull rod 24 is engaged with the outer wall of the first trigger rod 26. The first trigger rod 26 is connected to the inner wall of the temperature control cylinder 7 by a tension spring 30. 5 is slidably connected with a second trigger rod 27, the top end of the first trigger rod 26 is embedded in the inner side of the second trigger rod 27, the end of the second trigger rod 27 is fixedly connected with a baffle 29, the outer side wall of the baffle 29 is provided with a sealing gasket, the outer side wall of the baffle 29 is fixedly connected with a return spring 28, the end of the return spring 28 is fixedly connected with the outer side wall of the connecting seat 25, the rotating shaft 21 is close to the top end of the pushing frame 22, and is far away from the bottom end of the pushing frame 22, the outer side wall of the temperature control tube 7 is connected with a connecting pipe 8, the connecting pipe 8 is connected with the combustion seat 5, and the connecting position of the connecting pipe 8 and the temperature control tube 7 is located between the plunger seat 10 and the fixing seat 14.

[0026] It should be noted that during the heating process, the volume of the heat transfer oil increases due to continuous heating. Since the space where the heat transfer oil is located is a closed space, when the volume of the heat transfer oil increases, it pushes the plunger seat 10 to move in the direction of the fixed seat 14, driving the hard spring 15 and the moving rod 12, and driving the sealing seat 13 to move in the direction of the fixed seat 14. When the temperature of the heat transfer oil rises to the set temperature, the sealing seat 13 blocks the tapered hole of the fixed seat 14, so that the gas can only flow from the through hole 16 on the sealing seat 13, so that the flame of the combustion seat 5 is at the minimum value, which is used to maintain the temperature of the heat transfer oil and reduce the risk of burning the asphalt repair material. If the overall volume of the heat transfer oil shrinks due to the decrease in temperature, it drives the sealing seat 13 to move away from the fixed seat 14, increasing the flame of the combustion seat 5 to heat the heat transfer oil. Through the above process, the function of automatically controlling the temperature of the heat transfer oil is realized.

[0027] Reference Figure 5-Figure 6 A handrail 51 is fixedly connected to the top of the base plate 1, a console 52 is fixedly connected to the top of the handrail 51, a universal wheel is arranged at the bottom of the base plate 1, a cover plate 41 is fixedly connected to the top of the storage bin 6, a thermometer 42 is arranged on the cover plate 41, a handle 43 is rotatably connected to the cover plate 41, a stirring rod 44 is fixedly connected to the bottom of the handle 43, the stirring rod 44 is located inside the storage bin 6, a plurality of blades 45 are fixedly connected to the outer wall of the stirring rod 44, and a through pipe 46 is arranged on the storage bin 6.

[0028] The heating component includes a load-bearing frame 53 fixedly connected to the base plate 1, a load-bearing seat 54 is fixedly connected to the top of the load-bearing frame 53, a gas tank 55 is arranged on the inner side of the load-bearing seat 54, and the gas outlet of the gas tank 55 is connected to the temperature control tube 7 through a gas pipe. The feeding component includes a generator 56 fixedly connected to the base plate 1, a support seat 57 is fixedly connected to the outer wall of the protective cover 2, a gear pump is arranged on the inner side of the support seat 57, a fixing frame 58 is fixedly connected to the top of the support seat 57, a transmission motor 59 is fixedly connected to the top of the fixing frame 58, and the transmission motor 59 is connected to the gear pump through a magnetic coupling, and a discharge pipe 60 and a filler 61 are fixedly connected to the bottom of the support seat 57, and the discharge pipe 60 is connected to the output port of the gear pump.

[0029] In this embodiment, the asphalt repair material is first placed on the inner side of the storage bin 6, and the switch of the gas tank 55 is turned on. The gas in the gas tank 55 reaches the position of the combustion seat 5, ignites the combustion seat 5, and heats the heat transfer bin 3. By heating the heat transfer oil inside the heat transfer bin 3, the heat is transferred to the storage bin 6, and the asphalt repair material inside the storage bin 6 is heated, so that the asphalt repair material is melted and becomes a fluid state with good fluidity. By starting the generator 56, power is supplied to the transmission motor 59, and the output end of the transmission motor 59 rotates, and the gear pump inside the support seat 57 is driven to work through the magnetic coupling, and the melted asphalt repair material is drawn into the through pipe 46 and flows out from the bottom end of the discharge pipe 60, pushing the handrail 51. The device moves along the direction of the cracks in the asphalt pavement through the universal wheels at the bottom, fills the cracks with the melted repair material, and repairs the cracks in the asphalt pavement.

[0030] If the sealing between the sealing seat 13 and the fixing seat 14 is not tight during long-term use of the device, the combustion seat 5 cannot maintain the minimum flame insulation state, and the heat transfer oil is continuously heated, causing the heat transfer oil to continue to increase in volume due to the increase in temperature. The heat transfer oil continues to push the hard spring 15 through the plunger seat 10, causing the hard spring 15 to be compressed by the moving rod 12. In this process, the plunger seat 10 also pushes the top of the push frame 22, causing the push frame 22 to rotate on the rotating shaft 21, driving the auxiliary rod 23 and the pull rod 24 to move away from the first trigger rod 26, so that the pull rod 24 releases the limit on the first trigger rod 26, and the first trigger rod 26 moves downward under the tension of the tension spring 30, releasing the limit on the second trigger rod 27, so that when the reset spring 28 is reset, it drives the baffle 29 to completely block the tapered hole on the fixing seat 14, blocking the gas transmission channel, and extinguishing the flame on the combustion seat 5, preventing the heat transfer oil from being continuously heated to an excessively high temperature, which causes a large amount of asphalt repair material to burn.

[0031] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for repairing cracks in an asphalt pavement, comprising a base plate (1), the top of the base plate (1) being fixedly connected with a protective cover (2), a heat transfer bin (3), a windshield (4) and a combustion seat (5), the heat transfer bin (3) and the windshield (4) being located on the inner side of the protective cover (2), the combustion seat (5) being located on the inner side of the windshield (4), a material storage bin (6) being arranged inside the heat transfer bin (3), the material storage bin (6) and the heat transfer bin (3) being sealed, heat transfer oil being arranged between the material storage bin (6) and the heat transfer bin (3), and a temperature control cylinder (7) being arranged in communication with the outer wall of the heat transfer bin (3), characterized in that: Also includes: A temperature control component, the temperature control component being arranged on the inner side of the temperature control cylinder (7), and the temperature control component being used to control the temperature of the heat transfer oil inside the heat transfer chamber (3); A heating component, the heating component being arranged above the bottom plate (1), and being used to heat the storage bin (6); A material conveying component, the material conveying component is arranged on one side of the protective cover (2), and the material conveying component is used to convey raw materials for repairing cracks.

2. The asphalt pavement crack repairing device according to claim 1, characterized in that: A heat insulating layer is provided between the protective cover (2) and the heat conducting chamber (3), and the position where the bottom of the heat conducting chamber (3) contacts the bottom plate (1) is made of ceramic material.

3. The asphalt pavement crack repairing device according to claim 1, characterized in that: The temperature control component comprises a plunger seat (10) slidably arranged on the inner wall of the temperature control cylinder (7); the side wall of the plunger seat (10) is fixedly connected to a stabilizing sleeve (11); a moving rod (12) is slidably arranged in the stabilizing sleeve (11); the end of the moving rod (12) is fixedly connected to a sealing seat (13); a through hole (16) is provided in the sealing seat (13); the side wall of the temperature control cylinder (7) is fixedly connected to a fixing seat (14); a conical hole is provided in the fixing seat (14); the outer wall of the plunger seat (10) is fixedly connected to a hard spring (15); the end of the hard spring (15) is fixedly connected to the moving rod (12).

4. The asphalt pavement crack repairing device according to claim 3, characterized in that: The temperature control assembly also includes a rotating shaft (21) rotatably connected to the inner wall of the temperature control cylinder (7), a push frame (22) rotatably connected to the rotating shaft (21), an auxiliary rod (23) rotatably connected to the bottom end of the push frame (22), a pull rod (24) rotatably connected to the end of the auxiliary rod (23), a connecting seat (25) fixedly connected to the inner wall of the temperature control cylinder (7), a first trigger rod (26) slidably connected to the outer wall of the connecting seat (25), the pull rod (24) passes through the fixed seat (14) and the connecting seat (25) and is slidably connected to the fixed seat (14) and the connecting seat (25), and the end of the pull rod (24) The first trigger rod (26) is embedded with the outer wall of the first trigger rod (26), the first trigger rod (26) is connected to the inner wall of the temperature control cylinder (7) via a tension spring (30), a second trigger rod (27) is slidably connected in the connecting seat (25), the top end of the first trigger rod (26) is embedded in the inner side of the second trigger rod (27), the end of the second trigger rod (27) is fixedly connected to a baffle (29), the outer wall of the baffle (29) is provided with a sealing gasket, the outer wall of the baffle (29) is fixedly connected to a return spring (28), and the end of the return spring (28) is fixedly connected to the outer wall of the connecting seat (25).

5. The asphalt pavement crack repairing device according to claim 4, characterized in that: The rotating shaft (21) is relatively close to the top end of the pushing frame (22), and relatively far from the bottom end of the pushing frame (22).

6. The asphalt pavement crack repairing device according to claim 4, characterized in that: A connecting pipe (8) is provided in communication with the outer wall of the temperature control cylinder (7), the connecting pipe (8) is provided in communication with the combustion seat (5), and the connection position of the connecting pipe (8) and the temperature control cylinder (7) is located between the plunger seat (10) and the fixing seat (14).

7. The asphalt pavement crack repairing device according to claim 1, characterized in that: The top of the base plate (1) is fixedly connected to an armrest (51), the top of the armrest (51) is fixedly connected to a console (52), and the bottom of the base plate (1) is provided with universal wheels.

8. The asphalt pavement crack repairing device according to claim 1, characterized in that: The top of the material storage bin (6) is fixedly connected to a cover plate (41), a temperature gauge (42) is provided on the cover plate (41), a handle (43) is rotatably connected to the cover plate (41), a stirring rod (44) is fixedly connected to the bottom of the handle (43), the stirring rod (44) is located inside the material storage bin (6), a plurality of blades (45) are fixedly connected to the outer side wall of the stirring rod (44), and a through pipe (46) is provided on the material storage bin (6) for communication.

9. The asphalt pavement crack repairing device according to claim 1, characterized in that: The heating assembly comprises a load-bearing frame (53) fixedly connected to the bottom plate (1); a load-bearing seat (54) is fixedly connected to the top of the load-bearing frame (53); a gas tank (55) is arranged inside the load-bearing seat (54); and a gas outlet of the gas tank (55) is connected to the temperature control cylinder (7) via a gas pipe.

10. The asphalt pavement crack repairing device according to claim 1, characterized in that: The feeding assembly comprises a generator (56) fixedly connected to the bottom plate (1); the outer wall of the protective cover (2) is fixedly connected to a support seat (57); a gear pump is arranged on the inner side of the support seat (57); a fixing frame (58) is fixedly connected to the top of the support seat (57); a transmission motor (59) is fixedly connected to the top of the fixing frame (58); the transmission motor (59) and the gear pump are connected via a magnetic coupling; a discharge pipe (60) and a filler (61) are fixedly connected to the bottom of the support seat (57); the discharge pipe (60) is connected to the output port of the gear pump.

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