Portable hot patching device for sealing pavement cracks

Abstract

The invention relates to the technical field of pavement maintenance, in particular to a portable pavement crack sealing hot patching device which comprises a movable frame, a support is fixedly connected to the movable frame, a storage assembly is arranged on the support and comprises a threaded column, the threaded column is rotatably connected to the support, a rotating cylinder is fixedly connected to the threaded column, and the rotating cylinder is fixedly connected to the movable frame. A plurality of placement grooves are formed in the rotary drum, sliding blocks are slidably connected to the interiors of the placement grooves, injectors are fixedly connected to the sliding blocks, a switching assembly is further arranged on the support and comprises sliding sleeves and first springs, the sliding sleeves are slidably connected to the interiors of the placement grooves correspondingly, and the first springs are fixedly connected to the sliding sleeves; the multiple first springs are fixedly connected between the multiple sliding sleeves and the inner wall of the containing groove. According to the pavement crack repairing device, injectors filled with different repairing materials can be selected according to different pavement materials, then the injectors are drilled into the ground to complete injection repairing of pavement cracks, the injectors can be cleaned after being used, and the situation that follow-up use of the injectors is affected by adhered soil and dirt is prevented.

Description

Technical Field

[0001] This invention relates to the field of road maintenance technology, specifically a portable heat-sealing device for sealing road cracks. Background Technology

[0002] With the continuous expansion of transportation networks and the increase in service life, road surfaces are highly susceptible to various cracks and defects under the combined effects of vehicle loads, environmental erosion, and other factors. If these cracks are not repaired in a timely manner, rainwater and snow will seep into the road structure, leading to softening of the base layer and subgrade settlement, thereby exacerbating road damage and reducing road safety and service life. Therefore, efficient and precise repair of road cracks is one of the key aspects of road maintenance.

[0003] Currently, hot-dip paving crack repair technology is widely used in road maintenance projects due to its good repair effect and high durability, and corresponding hot-dip paving devices have also been developed and promoted to a certain extent. Existing portable hot-dip paving crack repair devices mostly adopt a single syringe structure, filled with a fixed type of hot-dip paving material. However, in actual road engineering, road surface materials vary greatly, such as asphalt pavement, cement concrete pavement, and composite pavement. Cracks in different pavement materials have significantly different requirements for the adhesion, flexibility, and high-temperature resistance of the repair material. Single-material hot-dip paving devices cannot adapt to the repair needs of different pavement materials, leading to problems such as material detachment and crack re-expansion after repair. Repair quality and durability are difficult to guarantee, and there are also technical defects such as low syringe switching efficiency, insufficient reliability, inconvenient cleaning and maintenance, and unstable connection and fixation. These limitations make it difficult to meet the needs of efficient, precise, and high-quality repair of cracks in different pavement materials, thus hindering the improvement of road maintenance efficiency and quality. Therefore, a new type of hot-dip paving device is needed to solve the above problems. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention proposes a portable hot-applied device for sealing road cracks. This device can select syringes filled with different repair materials for different road surfaces, and then drill into the ground to complete the injection repair of road cracks. After use, the syringes can be cleaned to prevent adhering mud and dirt from affecting their subsequent use.

[0005] The technical solution for achieving the purpose of this invention is as follows: a portable hot-applied device for sealing road cracks, comprising a movable frame, a support fixedly connected to the movable frame, a storage component on the support, the storage component comprising a threaded column rotatably connected to the support, a rotating cylinder fixedly connected to the threaded column, a plurality of placement slots on the rotating cylinder, a slider slidably connected inside each of the placement slots, an syringe fixedly connected to each of the sliders, a switching component on the support, the switching component comprising a sliding sleeve and a first spring, the sliding sleeves respectively slidably connected inside the placement slots, the first springs respectively fixedly connected between the sliding sleeves and the inner wall of the placement slots, a clamping component on the movable frame, the clamping component comprising a robotic arm and a connecting seat, the robotic arm movably connected to the movable frame, the connecting seat fixedly connected to the robotic arm, a rotating seat rotatably connected inside the connecting seat, a metal coil disposed inside the rotating seat, a power source disposed inside the connecting seat, an iron block slidably connected inside each slider, and a second spring fixedly connected between the iron block and the slider, and a cleaning component on the rotating cylinder.

[0006] Preferably, the storage component further includes a first motor, which is fixedly connected to the bracket. A prism is fixedly connected to the output shaft of the first motor. A groove is provided inside the threaded prism, and the prism is slidably connected to the inside of the groove. A threaded sleeve is fixedly connected to the bracket, and the threaded prism and the threaded sleeve are threadedly connected.

[0007] Preferably, the switching assembly further includes a fixing tube, which is fixedly connected to the bracket and slidably connected to the rotating drum. The fixing tube is filled with hydraulic oil.

[0008] Preferably, the switching component further includes through holes and oil seepage holes. The bottom of each of the multiple placement slots is provided with the through holes, and the oil seepage holes are provided on the fixed pipe and are adapted to the through holes.

[0009] Preferably, the switching assembly further includes a cylinder and a cylinder push rod. The cylinder is fixedly connected to the bracket, and the cylinder push rod is provided on the cylinder. The cylinder push rod is slidably connected to the inside of the fixed tube.

[0010] Preferably, the clamping assembly further includes slots, two of which are formed inside the rotating base and are adapted to fit the iron block.

[0011] Preferably, the clamping assembly further includes a second motor, a gear, and a transmission gear. The second motor is fixedly connected inside the connecting seat, the gear is fixedly connected to the output shaft of the second motor, and the transmission gear is fixedly connected to the rotating seat, with the transmission gear meshing with the gear.

[0012] Preferably, the cleaning assembly includes a rotating shaft, a rotating plate, and brush bristles. The multiple rotating shafts are rotatably connected to the inner walls of multiple placement slots, and the multiple rotating plates are fixedly connected to the rotating shafts. Each rotating plate is fixedly connected with brush bristles.

[0013] Preferably, the cleaning assembly further includes a spring and a vacuum cleaner. The spring is fixedly connected to each rotating shaft and is located inside the rotating drum. The vacuum cleaner is fixedly connected to the bracket, and the bottom of the vacuum cleaner is in contact with the surface of the rotating drum.

[0014] The significant advantages of this invention compared to existing technologies are: Firstly, in this invention, multiple placement slots each contain different syringes, each filled with a different repair material. This allows for the selection of different materials for hot repair of different road surfaces. When different syringes are needed, a first motor can be activated. The output shaft of the first motor rotates, causing a prism to rotate. Since the cross-section of the prism is not circular, the rotation of the prism causes the threaded column to rotate. The threaded column is threadedly connected to a threaded sleeve, so the threaded column also moves during rotation. The connecting seat is used to connect with the syringes in the upper placement slots. During the rotation of the threaded column, the rotating drum rotates synchronously, allowing each syringe in each placement slot to have the opportunity to be in a vertically downward position. Therefore, each syringe has the opportunity to connect with the connecting seat, and each syringe can be switched for use.

[0015] Secondly, in this invention, when switching syringes is required, the rotating cylinder is rotated by rotating the threaded column, moving the corresponding placement slot and syringe to the top of the connecting seat, so that the syringe can be connected to the connecting seat. All the placement slots are spirally distributed, so the connecting seat has an initial position. This initial position is used to connect with the syringe in the placement slot directly above. When the rotating cylinder rotates, whenever a placement slot moves to the top of the connecting seat, the oil leakage hole on the fixed tube inside the rotating cylinder will coincide with the through hole at the bottom of the placement slot. At this time, it is only necessary to start the cylinder. The cylinder push rod on the cylinder extends forward, which will squeeze the hydraulic oil in the fixed tube and squeeze the hydraulic oil into the placement slot. At this time, the hydraulic oil causes the sliding sleeve to move. The movement of the sliding sleeve drives the slider to move downward, and the syringe on the slider moves downward together, bringing the syringe closer to the connecting seat, ready to complete the connection with the connecting seat.

[0016] Thirdly, in this invention, the sliding sleeve is made of magnetic material, and the iron block is made of iron. Therefore, the sliding sleeve can generate an attractive force on the iron block, indirectly holding the entire slider in place. When the sliding sleeve moves downward a sufficient distance due to the pressure of the hydraulic oil, the syringe will penetrate the circular hole on the connecting seat. At this time, the slider is also inside the rotating seat, and the iron block will be exactly in the slot. When the power is turned on, the power supply will energize the metal coil. After the metal coil is energized, a magnetic field will be generated. Although the direction of the magnetic field is vertical, the magnetic field strength at the slot is still sufficient to attract the iron block, so that the iron block is embedded in the slot. At this time, as long as the power is kept on and the current flows through the metal coil, the iron block will be fixed in the slot, and the syringe will also be fixed on the rotating seat. The second motor can control the gear to rotate, and then through the transmission gear, the rotating seat and the syringe will rotate. The rotation of the syringe will allow the syringe to drill into the road crack, and then inject the repair material to complete the hot repair operation. The robotic arm can control the entire connecting seat to move, so that the syringe moves along a certain trajectory as needed during use.

[0017] Fourthly, in this invention, when the heat repair operation is completed, the robotic arm controls the connecting seat to return to its initial position. At this time, the power is turned off, the metal coil is no longer energized, and therefore no magnetism is generated. At this time, the second spring will reset the iron block, and the sliding sleeve will once again attract the entire slider. When the cylinder push rod moves in the opposite direction and the hydraulic oil is recovered, the sliding sleeve will also reset under the action of the first spring. At this time, the sliding sleeve, slider, and syringe will be repositioned in the placement slot. When the syringe is removed from the placement slot, it will pass through the two sets of bristles outside the placement slot, allowing the syringe to be preliminarily cleaned before use. When the slider and sliding sleeve are removed from the placement slot, they will push the rotating plate open. When the syringe is used up and returned to the placement slot, the spring-loaded spring will reset the rotating plate. When the slider and sliding sleeve enter the placement slot, the rotating plate will reset. As the syringe moves into the placement slot, the bristles move relative to the syringe surface, cleaning it and removing most of the dirt and grime. Since the slider moves within the placement slot during use and eventually slides out, any dirt or grime on the inner wall of the slot is also removed during this process. As the drum rotates, each placement slot passes under the vacuum cleaner, allowing you to remove any remaining dirt from the bristles. Therefore, throughout the entire use of the syringe, the syringe, placement slot, and bristles are all cleaned, significantly reducing the possibility of dirt residue and preventing issues like unsmooth syringe switching caused by dirt buildup. Attached Figure Description

[0018] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention.Figure One ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure Two ; Figure 3 This is a cross-sectional view of the internal structure of the clamping component in this invention; Figure 4 This is a cross-sectional view of the internal structure of the threaded column and the fixed tube in this invention; Figure 5 In this invention Figure 3 The diagram shows an enlarged view of part A. Figure 6 This is a cross-sectional view of the internal structure of the rotating cylinder in this invention; Figure 7 In this invention Figure 6 The diagram shows an enlarged view of part B. Figure 8 This is a schematic diagram of the cleaning component in this invention.

[0019] Explanation of reference numerals in the attached figures: 1. Movable frame; 2. Support; 3. Storage assembly; 31. Threaded column; 32. Rotary drum; 33. Placement slot; 34. Slider; 35. Syringe; 36. First motor; 37. Prism; 38. Slide groove; 39. Threaded sleeve; 4. Switching assembly; 41. Slide sleeve; 42. First spring; 43. Through hole; 44. Fixing tube; 45. Hydraulic oil; 46. Oil seepage hole; 47. Cylinder; 48. Cylinder push rod; 5. Clamping assembly; 51. Mechanical arm; 52. Connecting seat; 53. Rotating seat; 54. Metal coil; 55. Power supply; 56. Second spring; 57. Iron block; 58. Slot; 59. Second motor; 510. Gear; 511. Transmission gear; 6. Cleaning assembly; 61. Rotating shaft; 62. Rotating plate; 63. Brush bristles; 64. Spring-loaded spring; 65. Vacuum cleaner. Detailed Implementation

[0020] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] This invention improves upon a portable heat-sealing device for road surface crack sealing. The technical solution of this invention is as follows: like Figures 1-8As shown, a portable hot-patch device for sealing road cracks includes a movable frame 1, a support 2 fixedly connected to the movable frame 1, a storage component 3 on the support 2, a threaded post 31 rotatably connected to the support 2, a rotating cylinder 32 fixedly connected to the threaded post 31, a plurality of placement slots 33 on the rotating cylinder 32, sliders 34 slidably connected inside each of the placement slots 33, and syringes 35 fixedly connected to each of the sliders 34. The syringes 35 are filled with different repair materials. For different road surfaces, different syringes 35 can be selected for crack repair. A switching component 4 is also provided on the support 2, including a sliding sleeve 41 and a first spring 42. The sliding sleeves 41 are slidably connected inside the placement slots 33, and the first springs 42 are fixedly connected between the sliding sleeves 41 and the inner wall of the placement slots 33. A clamping component 5 is provided on the movable frame 1, including a robotic arm 51 and a connecting seat 52. The robotic arm 51 is movably connected to the movable frame 1. On the frame 1, the connecting seat 52 is fixedly connected to the robotic arm 51. Multiple placement slots 33 are distributed on the rotating drum 32 along three segments of spiral trajectory with extremely small pitch. While they appear to be three sets of circular arrays, they are actually spirally distributed. Therefore, when the rotating drum 32 moves spirally, each placement slot 33 can pass through the same position, directly above the connecting seat 52. Thus, the syringe 35 in each placement slot 33 can connect to the connecting seat 52 by moving directly above it. The internal rotation of the connecting seat 52... A rotating base 53 is connected, and a metal coil 54 is installed inside the rotating base 53. A power supply 55 is installed inside the connecting base 52. Iron blocks 57 are slidably connected inside the slider 34, and a second spring 56 is fixedly connected between the iron blocks 57 and the slider 34. The sliding sleeve 41 is made of magnetic material, so it has an attractive force on the iron blocks 57. Although the slider 34 is not made of iron or magnetic material, the magnetic attraction between the sliding sleeve 41 and the iron blocks 57 will indirectly cause the slider 34 to be attracted by the sliding sleeve 41. A cleaning component 6 is provided on the rotating drum 32.

[0022] Furthermore, such as Figures 1-4As shown, the storage assembly 3 also includes a first motor 36, which is fixedly connected to the bracket 2. A prism 37 is fixedly connected to the output shaft of the first motor 36. A groove 38 is provided inside the threaded column 31, and the prism 37 is slidably connected inside the groove 38. The prism 37 is a column with a non-circular cross-section, so when the prism 37 rotates, it can drive the threaded column 31 to rotate. A threaded sleeve 39 is fixedly connected to the bracket 2, and the threaded column 31 is threadedly connected to the threaded sleeve 39. When the threaded column 31 rotates with the prism 37, it will also move due to the threaded sleeve 39. Therefore, the threaded column 31 and the rotating drum 32 actually move along a spiral trajectory. That is, the first motor 36 eventually drives the rotating drum 32 to move along a spiral trajectory. The purpose of the rotating drum 32 moving along a spiral trajectory is to allow all the placement slots 33 to have the opportunity to move to the same position, that is, directly above the connecting seat 52 or directly below the vacuum cleaner 65.

[0023] Furthermore, such as Figure 4 , Figure 6 and Figure 7 As shown, the switching component 4 also includes a fixed tube 44, which is fixedly connected to the bracket 2 and slidably connected to the rotating drum 32. Hydraulic oil 45 is provided inside the fixed tube 44. The fixed tube 44 passes through the rotating drum 32, but the fixed tube 44 remains stationary when the rotating drum 32 moves along the spiral trajectory.

[0024] Furthermore, such as Figure 4 , Figure 6 and Figure 7 As shown, the switching component 4 also includes a through hole 43 and an oil seepage hole 46. The bottom of each of the multiple placement slots 33 is provided with a through hole 43, and the oil seepage hole 46 is provided on the fixed tube 44. The oil seepage hole 46 is adapted to the through hole 43. Since the fixed tube 44 is fixed, the spiral rotating drum 32 will cause each placement slot 33 to pass through the same position. Therefore, when each placement slot 33 and the syringe 35 inside it move to the top of the connecting seat 52 and are ready for switching, the through hole 43 at the bottom of the placement slot 33 will also coincide with the oil seepage hole 46. At this time, as long as the hydraulic oil 45 is squeezed into the placement slot 33, the sliding sleeve 41 and the slider 34 will move, thereby pushing the syringe 35 out of the placement slot 33 to complete the switching. Conversely, when the hydraulic oil 45 is sucked back, the syringe 35 will be put back into the placement slot 33.

[0025] Furthermore, such as Figures 1-4 As shown, the switching component 4 also includes a cylinder 47 and a cylinder push rod 48. The cylinder 47 is fixedly connected to the bracket 2, and the cylinder push rod 48 is provided on the cylinder 47. The cylinder push rod 48 is slidably connected to the inside of the fixed tube 44. When the cylinder push rod 48 moves inside the fixed tube 44, it will push the hydraulic oil 45 to control the movement of the hydraulic oil 45, thereby controlling the entry and exit of the syringe 35 in the placement slot 33.

[0026] Furthermore, such as Figure 3 , Figure 4 and Figure 5 As shown, the clamping assembly 5 also includes slots 58. Two slots 58 are opened inside the rotating seat 53. The slots 58 are adapted to the iron block 57. The iron block 57 can be attracted into the slots 58 by the magnetism generated by the metal coil 54. Although the sliding sleeve 41 is magnetic and has a magnetic attraction to the iron block 57, when the iron block 57 is embedded in the slot 58, the entire slider 34 and syringe 35 will move with the connecting seat 52 and will no longer be affected by the magnetic attraction of the sliding sleeve 41.

[0027] Furthermore, such as Figure 5 As shown, the clamping assembly 5 also includes a second motor 59, a gear 510, and a transmission gear 511. The second motor 59 is fixedly connected to the inside of the connecting seat 52, the gear 510 is fixedly connected to the output shaft of the second motor 59, and the transmission gear 511 is fixedly connected to the rotating seat 53. The transmission gear 511 meshes with the gear 510. The second motor 59 is used to control the rotation of the rotating seat 53. When the syringe 35 is fixed on the rotating seat 53, it rotates in this way to drill into the ground, which facilitates the subsequent injection of heat-repairing materials.

[0028] Furthermore, such as Figure 8 As shown, the cleaning component 6 includes a rotating shaft 61, a rotating plate 62, and bristles 63. Multiple rotating shafts 61 are rotatably connected to the inner walls of multiple placement slots 33, and multiple rotating plates 62 are fixedly connected to the rotating shafts 61. Bristles 63 are fixedly connected to each rotating plate 62.

[0029] Furthermore, such as Figures 1-8 As shown, the cleaning assembly 6 also includes a spring 64 and a vacuum cleaner 65. The spring 64 is fixedly connected to each rotating shaft 61 and is located inside the rotating drum 32. The vacuum cleaner 65 is fixedly connected to the bracket 2 and the bottom of the vacuum cleaner 65 is in contact with the surface of the rotating drum 32.

[0030] The specific working method is as follows: multiple placement slots 33 each contain different syringes 35, each filled with a different repair material. This allows for the selection of different materials for hot repair of different road surface materials. When hot repairing road cracks, simply select the syringe 35 filled with the appropriate repair material based on the road surface material, insert the syringe 35 into the road surface, and inject the hot repair material to complete the hot repair. When different syringes 35 are needed, the first motor 36 can be started. The output shaft of the first motor 36 rotates, which drives the prism 37 to rotate. Since the cross-section of the prism 37 is not circular, the rotation of the prism 37 will drive the threaded column 31 to rotate. The threaded column 31 is threadedly connected to the threaded sleeve 39, so the threaded column 31 will also move when rotating. The connecting seat 52 is used to connect with the syringes 35 in the upper placement slot 33. During the rotation of the threaded column 31, the rotating drum 32 rotates synchronously, so that each syringe 35 in each placement slot 33 can have the opportunity to be in a vertically downward state. Therefore, each syringe 35 has the opportunity to connect with the connecting seat 52, and each syringe 35 can be switched for use.

[0031] When switching syringes 35 is required, rotating the threaded post 31 causes the rotating cylinder 32 to rotate, moving the corresponding placement slot 33 and syringe 35 directly above the connecting seat 52. This facilitates the subsequent connection of the syringe 35 to the connecting seat 52. All placement slots 33 are spirally distributed, thus the connecting seat 52 has an initial position for connecting with the syringe 35 in the placement slot 33 directly above it. As the rotating cylinder 32 rotates, each time a placement slot 33 moves directly above the connecting seat 52, The oil leakage hole 46 on the fixed tube 44 inside the rotating drum 32 will coincide with the through hole 43 at the bottom of the placement groove 33. At this time, it is only necessary to start the cylinder 47. The cylinder push rod 48 on the cylinder 47 extends forward, which will squeeze the hydraulic oil 45 in the fixed tube 44 and squeeze the hydraulic oil 45 into the placement groove 33. At this time, the hydraulic oil 45 causes the sliding sleeve 41 to move. The movement of the sliding sleeve 41 drives the slider 34 to move downward. Then the syringe 35 on the slider 34 moves downward together, so that the syringe 35 is close to the connecting seat 52, ready to complete the connection with the connecting seat 52.

[0032] The sliding sleeve 41 is made of magnetic material, and the iron block 57 is made of iron. Therefore, the sliding sleeve 41 can generate an attractive force on the iron block 57, indirectly holding the entire slider 34 in place. When the sliding sleeve 41 moves downward a sufficient distance due to the pressure of the hydraulic oil 45, the syringe 35 will penetrate the circular hole on the connecting seat 52. At this time, the slider 34 is also inside the rotating seat 53, and the iron block 57 will be exactly in the position of the slot 58. At this time, the power supply 55 is turned on, and the power supply 55 will energize the metal coil 54. After the metal coil 54 is energized, a magnetic field is generated. Although the direction of the magnetic field is vertical, the magnetic field strength at the slot 58 is still sufficient to attract the iron block 57, so that... Iron block 57 is embedded in slot 58. At this time, as long as the power supply 55 is kept on and current flows through the metal coil 54, iron block 57 will be fixed in slot 58. Therefore, syringe 35 will also be fixed on rotating seat 53. Second motor 59 can control gear 510 to rotate, and then through transmission gear 511, rotate rotating seat 53 and syringe 35. The rotation of syringe 35 allows it to drill into road cracks and inject repair material to complete the hot repair operation. Meanwhile, robotic arm 51 can control the movement of the entire connecting seat 52 so that syringe 35 can move along a certain trajectory as needed during use.

[0033] When the hot-pressing operation is completed, the robotic arm 51 controls the connecting seat 52 to return to its initial position. At this time, the power supply 55 is turned off, the metal coil 54 is no longer energized, and therefore no magnetism is generated. At this time, the second spring 56 will reset the iron block 57, and the sliding sleeve 41 will once again attract the entire slider 34. When the cylinder push rod 48 moves in the reverse direction and the hydraulic oil 45 is recovered, the sliding sleeve 41 will also reset under the action of the first spring 42. At this time, the sliding sleeve 41, slider 34, and syringe 35 will be repositioned into the placement slot 33. When the syringe 35 is removed from the placement slot 33, it will pass through the two sets of bristles 63 outside the placement slot 33, thus performing a preliminary cleaning of the syringe 35 before use. When the slider 34 and sliding sleeve 41 are dislodged from the placement slot 33, they will push the rotating plate 62 open. When the syringe 35 is used up and returned to the placement slot 33, the spring spring 64 will reset the rotating plate 62. When the slider 34 and sliding sleeve 41 enter the placement slot 33, the rotating plate... At step 62, the syringe 35 is reset. Afterward, as the syringe 35 moves into the placement slot 33, the bristles 63 move relative to the surface of the syringe 35, cleaning it and removing most of the dirt and grime. Since the slider 34 moves within the placement slot 33 during use and eventually slides out, any dirt or grime on the inner wall of the placement slot 33 will also be removed during this process. During the rotation of the drum 32, each placement slot 33 has the opportunity to pass under the vacuum cleaner 65. Therefore, turning on the vacuum cleaner 65 during the rotation of the drum 32 will remove any remaining dirt from the bristles 63. Thus, throughout the entire use of the syringe 35, the syringe 35, the placement slot 33, and the bristles 63 can all be cleaned, significantly reducing the possibility of dirt residue and preventing issues such as uneven syringe switching caused by dirt buildup.

[0034] The technical means disclosed in this invention are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this invention are common knowledge to those skilled in the art.

Claims

1. A portable heat-sealing device for road surface cracks, comprising a movable frame (1), wherein a support (2) is fixedly connected to the movable frame (1), characterized in that: The support (2) is provided with a storage component (3), which includes a threaded post (31) rotatably connected to the support (2). A rotating cylinder (32) is fixedly connected to the threaded post (31). Multiple placement slots (33) are provided on the rotating cylinder (32). Sliding sliders (34) are slidably connected inside the multiple placement slots (33). Injectors (35) are fixedly connected to the multiple sliding sliders (34). The support (2) is also provided with a switching component (4), which includes a sliding sleeve (41) and a first spring (42). Multiple sliding sleeves (41) are slidably connected to the interior of multiple placement slots (33), and multiple first springs (42) are fixedly connected to the multiple sliding sleeves (41). Between the inner wall of the placement slot (33) and the movable frame (1), a clamping assembly (5) is provided on the movable frame (1). The clamping assembly (5) includes a mechanical arm (51) and a connecting seat (52). The mechanical arm (51) is movably connected to the movable frame (1). The connecting seat (52) is fixedly connected to the mechanical arm (51). A rotating seat (53) is rotatably connected inside the connecting seat (52). A metal coil (54) is provided inside the rotating seat (53). A power supply (55) is provided inside the connecting seat (52). Iron blocks (57) are slidably connected inside the slider (34). A second spring (56) is fixedly connected between the iron block (57) and the slider (34). A cleaning assembly (6) is provided on the rotating drum (32).

2. The portable heat-sealing device for road surface crack sealing according to claim 1, characterized in that: The storage component (3) also includes a first motor (36), which is fixedly connected to the bracket (2). A prism (37) is fixedly connected to the output shaft of the first motor (36). A groove (38) is provided inside the threaded column (31). The prism (37) is slidably connected to the inside of the groove (38). A threaded sleeve (39) is fixedly connected to the bracket (2). The threaded column (31) and the threaded sleeve (39) are threadedly connected.

3. The portable heat-sealing device for road surface crack sealing according to claim 1, characterized in that: The switching component (4) also includes a fixed tube (44), which is fixedly connected to the bracket (2) and slidably connected to the rotating drum (32). Hydraulic oil (45) is provided inside the fixed tube (44).

4. The portable heat-sealing device for road surface crack sealing according to claim 3, characterized in that: The switching component (4) also includes a through hole (43) and an oil seepage hole (46). The bottom of each of the multiple placement slots (33) is provided with the through hole (43), and the oil seepage hole (46) is opened on the fixed pipe (44). The oil seepage hole (46) is adapted to the through hole (43).

5. The portable heat-sealing device for road surface crack sealing according to claim 4, characterized in that: The switching assembly (4) also includes a cylinder (47) and a cylinder push rod (48). The cylinder (47) is fixedly connected to the bracket (2), and the cylinder push rod (48) is provided on the cylinder (47). The cylinder push rod (48) is slidably connected to the inside of the fixed tube (44).

6. The portable heat-sealing device for road surface crack sealing according to claim 1, characterized in that: The clamping assembly (5) also includes slots (58), two of which are located inside the rotating seat (53) and are adapted to fit the iron block (57).

7. The portable heat-sealing device for road surface crack sealing according to claim 1, characterized in that: The clamping assembly (5) also includes a second motor (59), a gear (510) and a transmission gear (511). The second motor (59) is fixedly connected to the inside of the connecting seat (52). The gear (510) is fixedly connected to the output shaft of the second motor (59). The transmission gear (511) is fixedly connected to the rotating seat (53). The transmission gear (511) meshes with the gear (510).

8. The portable heat-sealing device for road surface crack sealing according to claim 1, characterized in that: The cleaning component (6) includes a rotating shaft (61), a rotating plate (62), and bristles (63). Multiple rotating shafts (61) are rotatably connected to the inner walls of multiple placement slots (33), and multiple rotating plates (62) are fixedly connected to the rotating shafts (61). Each rotating plate (62) is fixedly connected with the bristles (63).

9. The portable heat-sealing device for road surface crack sealing according to claim 8, characterized in that: The cleaning assembly (6) also includes a spring (64) and a vacuum cleaner (65). The spring (64) is fixedly connected to each shaft (61) and is located inside the rotating drum (32). The vacuum cleaner (65) is fixedly connected to the bracket (2) and the bottom of the vacuum cleaner (65) is in contact with the surface of the rotating drum (32).

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