Roll forming device for highway construction

Abstract

The invention discloses a rolling forming device for highway construction, and relates to the technical field of highway construction, the rolling forming device comprises a vehicle body, a material pushing device and a scraping device, a control rod is fixedly mounted at the top of the vehicle body, a water tank is arranged in the vehicle body, and a rolling device is fixedly mounted at the bottom of the vehicle body; wherein the pushing device comprises an elastic telescopic rod, pushing plates, pulleys, a long rod, an arc-shaped plate, a collecting box, a rotating plate and a limiting rod, extrusion of the rolling device on the road surface is prevented, meanwhile, the pulleys can make contact with the ground, friction between the pushing plates is reduced, and the elastic telescopic rod is fixedly installed at the bottom of the vehicle body. And the pushing plate is fixedly installed at the free end of the elastic telescopic rod, the pulley is rotatably installed in the pushing plate, potential safety hazards caused by accumulation of gravel on the road surface are prevented, meanwhile, when the gravel needs to be treated, the limiting rod is manually rotated, the limiting rod relieves limiting of the rotating plate, and a user can conveniently treat the gravel.

Description

Technical Field

[0001] The present invention relates to the technical field of highway construction, and specifically relates to a rolling and forming device for highway construction. Background Art

[0002] A rolling and forming device for highway construction is a device used for rolling and forming soil, gravel or other materials during road construction. This kind of device is usually used in road construction, repair and maintenance projects.

[0003] The patent with the patent publication number CN115305778B relates to a rolling and forming device for highway construction pavement, including a vehicle body, a first rolling wheel, a U-shaped mounting frame, a support block, a second rolling wheel, etc.; a support block is arranged inside the vehicle body, a U-shaped mounting frame is rotatably arranged on the support block, the first rolling wheel is rotatably connected inside the U-shaped mounting frame, a second rolling wheel is arranged inside the vehicle body, the vehicle body is rotatably connected to a push rod through a rotating shaft, and a prompting mechanism is installed on the vehicle body. The prompting mechanism is used to detect and prompt the raised parts of the road surface after rolling. When the rolling and forming device of this invention is rolling the road surface, the detection wheel moves from the road surface rolled by the second rolling wheel. When there is a protrusion on the road surface, the second rolling wheel will slide upward and push the contact piece upward.

[0004] In the above patent, when the rolling and forming device is rolling the road surface, the detection wheel moves from the road surface rolled by the second rolling wheel. When there is a protrusion on the road surface, the second rolling wheel will slide upward and push the contact piece upward. However, when rolling the road surface, there will be gravel and the like on the road surface, which will affect the rolling effect of the rolling roller. At the same time, the gravel cannot be effectively collected and processed centrally, which will affect the subsequent rolling effect. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a rolling and forming device for highway construction, which solves the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A road construction rolling and forming device, including a vehicle body, further including a feeding device and a scraping device. A control rod is fixedly installed on the top of the vehicle body, a water tank is arranged inside the vehicle body, and a rolling device is fixedly installed at the bottom of the vehicle body; Among them, the feeding device includes an elastic telescopic rod, a feeding plate, a pulley, a long rod, an arc-shaped plate, a collection box, a rotating plate and a limiting rod. The movement of the rolling device drives the feeding plate to push the gravel on the road surface to both sides, preventing it from affecting the extrusion of the rolling device on the road surface. At the same time, the pulley will contact the ground, reducing the friction between the feeding plates. The elastic telescopic rod is fixedly installed at the bottom of the vehicle body, the feeding plate is fixedly installed at the free end of the elastic telescopic rod, the pulley is rotatably installed inside the feeding plate, the long rod is fixedly installed on the surface of the pulley, the arc-shaped plate is fixedly installed on the surface of the long rod, the collection box is fixedly installed on the surface of the feeding plate, the rotating plate is rotatably installed at the bottom of the inner wall of the collection box, and the limiting rod is rotatably installed at the top of the collection box. When the pulley rotates, it will drive the long rod to rotate, and the rotation of the long rod will drive the arc-shaped plate to rotate. The gravel on both sides is pushed into the collection box by the rotation of the arc-shaped plate, preventing the gravel from accumulating on the road surface and causing potential safety hazards. At the same time, when the gravel needs to be processed, the limiting rod is manually rotated to release the limit on the rotating plate, facilitating the user to process the gravel.

[0007] According to the above technical solution, the long rod rotates through the surface of the feeding plate. A first torsion spring is arranged between the rotating plate and the collection box, and a second torsion spring is arranged between the limiting rod and the collection box. The first torsion spring drives the rotating plate to reset, and the second torsion spring drives the limiting rod to reset.

[0008] According to the above technical solution, the scraping device includes a short rod, a support plate, an elastic telescopic plate and a scraping plate. When the rolling device rolls the road surface, impurities will adhere to the surface of the rolling device, affecting the rolling effect. The elastic telescopic plate drives the scraping plate to contact the rolling device, and the impurities adhering to the rolling device are scraped off by the scraping plate. The short rod is fixedly installed on the surface of the rolling device, the support plate is fixedly installed at the bottom of the vehicle body, the elastic telescopic plate is fixedly installed on the surface of the support plate, the scraping plate is fixedly installed at the free end of the elastic telescopic plate, the scraping plate contacts the surface of the rolling device, a diversion groove is arranged at the top of the elastic telescopic plate, and a water-absorbing cotton is arranged on the surface of the scraping plate, improving the rolling effect on the road surface and preventing the gravel from damaging the rolling device.

[0009] According to the above technical solution, a water inlet pipe is fixedly installed at the bottom of the water tank. A hollow ring is fixedly installed on the inner wall of the water inlet pipe. The valve rod is slidably installed on the inner wall of the water inlet pipe. The push rod is fixedly installed on the surface of the valve rod. A first spring is arranged between the valve rod and the water inlet pipe. When the rolling device rotates, it will drive the short rod to rotate. During the rotation of the short rod, it will contact the push rod. The rotation of the short rod will push the push rod downward. The downward movement of the push rod will drive the valve rod to move downward, preventing it from working in high-temperature weather for a long time. Excessive temperature will cause the rolling device to be deformed by heat, affecting the rolling effect. The valve rod is driven to reset by the first spring.

[0010] According to the above technical solution, it further includes a sealing device and a detection device. The sealing device includes a circular rod and a sealing plate. The downward movement of the valve rod will drive the circular rod to move downward. The downward movement of the circular rod will drive the sealing plate to move downward. The circular rod is fixedly installed at the top of the valve rod. The sealing plate is fixedly installed at the top of the circular rod. The water inlet pipe is sealed by the sealing plate to prevent a large amount of water from flowing out, resulting in waste of water resources.

[0011] According to the above technical solution, a chute is fixedly installed on the water tank. A floating block is arranged inside the chute. A fixed rod is fixedly installed at the top of the floating block. A short board is fixedly installed at the top of the fixed rod. A control sensor is arranged on the top of the vehicle body. When the water level drops too low, it will drive the floating block to move downward. The downward movement of the floating block will drive the fixed rod to move downward. The downward movement of the fixed rod will drive the short board to move downward, preventing the water in the water tank from being used up, resulting in the rolling device not being cooled in time and causing potential safety hazards to the equipment.

[0012] According to the above technical solution, the detection device includes an elastic telescopic link, a connecting rod, a roller, a fixing plate and a control switch. The elastic telescopic link drives the connecting rod to move downward. The connecting rod will drive the roller to fit the ground to detect the ground. The elastic telescopic link is fixedly installed at the bottom of the vehicle body. The connecting rod is fixedly installed at the free end of the elastic telescopic link. The roller is rotatably installed on the surface of the connecting rod. The fixing plate is fixedly installed at the free end of the elastic telescopic link. The control switch is fixedly installed at the fixed end of the elastic telescopic link, preventing there are raised parts on the ground, which poses a safety hazard.

[0013] According to the above technical solution, an electric push rod is fixedly installed on the vehicle body. A pressing plate is fixedly installed at the output end of the electric push rod. The control switch is electrically connected to the electric push rod. The downward movement of the electric push rod will drive the pressing plate to move downward. The raised part is squeezed by the pressing plate, preventing the raised part from causing the road surface to be uneven and posing a safety hazard to the road surface.

[0014] The present invention provides a road construction rolling and forming device. It has the following beneficial effects: (1) In this invention, the crushing stones are pushed to both sides of the vehicle body by a pushing plate, preventing it from affecting the extrusion of the road surface by the rolling device. At the same time, pulleys are arranged at the bottom of the pushing plate, which can reduce the friction between the ground and the ground, prevent the pushing plate from being damaged due to long-term use, and at the same time drive the arc plate to rotate by the rotation of the pulley, and use the arc plate to push the crushing stones on both sides into the collection box, preventing the crushing stones from piling up on both sides of the road, which is likely to cause potential safety hazards.

[0015] (2) In this invention, the impurities adhered to the rolling device are scraped off by a scraping plate, preventing the impurities from adhering to the rolling device for a long time and affecting the efficiency of the rolling device in pressing the road. At the same time, when the rolling device rotates, it will drive a short rod to rotate and open the valve of the water inlet pipe, and the water adheres to the arc plate to cool the rolling device, preventing it from working in high-temperature weather for a long time. Excessive temperature will cause the rolling device to be deformed by heat, affecting the rolling effect.

[0016] (3) In this invention, when the valve rod moves downward, it drives the sealing plate to move downward, timely closing the water inlet pipe to prevent a large amount of water from flowing out and causing waste of water resources. At the same time, the floating block will detect the height of the water level. When the water level is too low, it will drive the short board to contact the control sensor, and the control sensor will give an alarm to prevent the water from running out, resulting in the rolling device not being cooled in time and causing potential safety hazards to the equipment.

[0017] (4) In this invention, the ground protrusions can be detected by the rollers contacting the ground. When there are ground protrusions, it will drive the fixed plate to contact the control switch, and the control switch will start the electric push rod, and use the electric push rod to drive the pressing plate to press the protruding part downward, preventing the protruding part from causing the road surface to be uneven and creating potential safety hazards on the road surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the overall internal structure of the present invention; Figure 3 is a schematic diagram of the internal structure of the pushing plate of the present invention; Figure 4 is a schematic diagram of the bottom structure of the vehicle body of the present invention; Figure 5 is the present invention Figure 4 The enlarged schematic diagram of the structure of part A in; Figure 6 is a schematic diagram of the internal structure of the water inlet pipe of the present invention; Figure 7 is a schematic diagram of the internal sectional structure of the water tank of the present invention; Figure 8 is the present invention Figure 7 The enlarged schematic diagram of the structure of part B in.

[0019] In the figure: 1, vehicle body; 2, control rod; 3, water tank; 4, rolling device; 51, elastic telescopic rod; 52, pushing plate; 53, pulley; 54, long rod; 55, arc plate; 56, collection box; 57, rotating plate; 58, limiting rod; 61, short rod; 62, support plate; 63, elastic telescopic plate; 64, scraping plate; 65, water inlet pipe; 66, valve rod; 67, push rod; 68, hollow ring; 71, circular rod; 72, sealing plate; 73, chute; 74, floating block; 75, fixing rod; 76, short board; 77, control sensor; 81, elastic telescopic connecting rod; 82, connecting rod; 83, roller; 84, fixing plate; 85, control switch; 86, electric push rod; 87, pressing plate. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-6 , an embodiment of the present invention is: a road construction rolling and forming device, including a vehicle body 1, and further including a pushing device and a scraping device. A control rod 2 is fixedly installed on the top of the vehicle body 1, a water tank 3 is arranged inside the vehicle body 1, and a rolling device 4 is fixedly installed at the bottom of the vehicle body 1; wherein, the pushing device includes an elastic telescopic rod 51, a pushing plate 52, a pulley 53, a long rod 54, an arc plate 55, a collection box 56, a rotating plate 57 and a limiting rod 58. The movement of the rolling device 4 drives the pushing plate 52 to push the gravel on the road surface to both sides, preventing it from affecting the extrusion of the road surface by the rolling device 4. At the same time, the pulley 53 will contact the ground, reducing the friction between the pushing plates 52. The elastic telescopic rod 51 is fixedly installed at the bottom of the vehicle body 1, the pushing plate 52 is fixedly installed at the free end of the elastic telescopic rod 51, the pulley 53 is rotatably installed inside the pushing plate 52, the long rod 54 is fixedly installed on the surface of the pulley 53, the arc plate 55 is fixedly installed on the surface of the long rod 54, the collection box 56 is fixedly installed on the surface of the pushing plate 52, the rotating plate 57 is rotatably installed at the bottom of the inner wall of the collection box 56, and the limiting rod 58 is rotatably installed at the top of the collection box 56. When the pulley 53 rotates, it will drive the long rod 54 to rotate, and the rotation of the long rod 54 will drive the arc plate 55 to rotate. The rotation of the arc plate 55 is used to push the gravel on both sides into the collection box 56, preventing the gravel from accumulating on the road surface and causing potential safety hazards. At the same time, when it is necessary to process the gravel, manually rotate the limiting rod 58 to release the limit of the limiting rod 58 on the rotating plate 57, facilitating the user to process the gravel.

[0022] The long rod 54 rotates through the surface of the pushing plate 52. A first torsion spring is arranged between the rotating plate 57 and the collection box 56, and a second torsion spring is arranged between the limiting rod 58 and the collection box 56. The first torsion spring drives the rotating plate 57 to reset, and the second torsion spring drives the limiting rod 58 to reset.

[0023] The scraping device includes a short rod 61, a support plate 62, an elastic telescopic plate 63 and a scraping plate 64. When the rolling device 4 rolls the road surface, impurities will adhere to the surface of the rolling device 4, affecting the rolling effect. The elastic telescopic plate 63 drives the scraping plate 64 to contact the rolling device 4, and the scraping plate 64 scrapes off the impurities adhering to the rolling device 4. The short rod 61 is fixedly installed on the surface of the rolling device 4, the support plate 62 is fixedly installed at the bottom of the vehicle body 1, the elastic telescopic plate 63 is fixedly installed on the surface of the support plate 62, the scraping plate 64 is fixedly installed at the free end of the elastic telescopic plate 63, the scraping plate 64 contacts the surface of the rolling device 4, a diversion groove is arranged at the top of the elastic telescopic plate 63, and a water-absorbing cotton is arranged on the surface of the scraping plate 64, so as to improve the rolling effect on the road surface and prevent the crushed stones from damaging the rolling device 4.

[0024] A water inlet pipe 65 is fixedly installed at the bottom of the water tank 3. A hollow ring 68 is fixedly installed on the inner wall of the water inlet pipe 65. A valve rod 66 is slidably installed on the inner wall of the water inlet pipe 65. A push rod 67 is fixedly installed on the surface of the valve rod 66. A first spring is arranged between the valve rod 66 and the water inlet pipe 65. When the rolling device 4 rotates, it drives the short rod 61 to rotate. During the rotation of the short rod 61, it will contact the push rod 67. The rotation of the short rod 61 will push the push rod 67 downward, and the downward movement of the push rod 67 will drive the valve rod 66 to move downward, preventing it from working in high-temperature weather for a long time. Excessive temperature will cause the rolling device 4 to be deformed by heat, affecting the rolling effect. The first spring drives the valve rod 66 to reset.

[0025] When this embodiment works, the pushing plate 52 is driven by the movement of the rolling device 4 to push the crushed stones on the road surface to both sides, preventing the rolling device 4 from being affected when extruding the road surface. At the same time, the pulley 53 will contact the ground, reducing the friction between the pushing plates 52. When the pulley 53 rotates, it will drive the long rod 54 to rotate, and the rotation of the long rod 54 will drive the arc-shaped plate 55 to rotate. The arc-shaped plate 55 is used to rotate and push the crushed stones on both sides into the collection box 56 for centralized treatment, preventing the crushed stones from accumulating on the road surface and causing potential safety hazards. At the same time, when the crushed stones need to be processed, the limiting rod 58 is manually rotated to release the limit on the rotating plate 57, facilitating the user to process the crushed stones.

[0026] When the rolling device 4 compresses the road surface, impurities will adhere to the surface of the rolling device 4, affecting the rolling effect. The elastic telescopic plate 63 drives the scraper 64 to contact the rolling device 4, and the scraper 64 scrapes off the impurities adhering to the rolling device 4 to improve the rolling effect. At the same time, when the rolling device 4 rotates, it will drive the short rod 61 to rotate. During the rotation of the short rod 61, it will contact the push rod 67. The rotation of the short rod 61 will push the push rod 67 downward. The downward movement of the push rod 67 will drive the valve rod 66 downward. The downward movement of the valve rod 66 will cause it to disengage from the contact with the hollow ring 68, allowing the water inside the water tank 3 to flow onto the elastic telescopic plate 63 through the water inlet pipe 65 and then flow to the scraper 64 through the diversion groove. The absorbent cotton on the surface of the scraper 64 absorbs the water and then smears it onto the rolling device 4 to cool the rolling device 4, preventing it from being deformed by heat due to working in high-temperature weather for a long time, which will affect the rolling effect.

[0027] Please refer to Figures 1-8 , on the basis of the above embodiment, in another embodiment of the present invention, it further includes a sealing device and a detection device. The sealing device includes a circular rod 71 and a sealing plate 72. The downward movement of the valve rod 66 will drive the circular rod 71 downward, and the downward movement of the circular rod 71 will drive the sealing plate 72 downward. The circular rod 71 is fixedly installed on the top of the valve rod 66, and the sealing plate 72 is fixedly installed on the top of the circular rod 71. The water inlet pipe 65 is sealed by the sealing plate 72 to prevent a large amount of water from flowing out, resulting in waste of water resources.

[0028] The water tank 3 is fixedly installed with a chute 73. A floating block 74 is arranged inside the chute 73. A fixing rod 75 is fixedly installed on the top of the floating block 74, and a short board 76 is fixedly installed on the top of the fixing rod 75. A control sensor 77 is arranged on the top of the vehicle body 1. When the water level drops too low, it will drive the floating block 74 downward. The downward movement of the floating block 74 will drive the fixing rod 75 downward, and the downward movement of the fixing rod 75 will drive the short board 76 downward, preventing the water in the water tank 3 from being used up, resulting in the rolling device 4 not being cooled in time and causing potential safety hazards to the equipment.

[0029] The detection device includes an elastic telescopic link 81, a connecting rod 82, a roller 83, a fixing plate 84 and a control switch 85. The elastic telescopic link 81 drives the connecting rod 82 downward, and the connecting rod 82 will drive the roller 83 to fit the ground to detect the ground. The elastic telescopic link 81 is fixedly installed at the bottom of the vehicle body 1, the connecting rod 82 is fixedly installed at the free end of the elastic telescopic link 81, the roller 83 is rotatably installed on the surface of the connecting rod 82, the fixing plate 84 is fixedly installed at the free end of the elastic telescopic link 81, and the control switch 85 is fixedly installed at the fixed end of the elastic telescopic link 81, preventing there are raised parts on the ground, which poses potential safety hazards.

[0030] The vehicle body 1 is fixedly installed with an electric push rod 86. The output end of the electric push rod 86 is fixedly installed with a pressing plate 87. The control switch 85 is electrically connected to the electric push rod 86. When the electric push rod 86 moves downward, it will drive the pressing plate 87 to move downward, and use the pressing plate 87 to squeeze the raised part to prevent the raised part from causing the road surface to be uneven and posing a safety hazard on the road surface.

[0031] When this embodiment works, the downward movement of the valve rod 66 will drive the circular rod 71 to move downward, and the downward movement of the circular rod 71 will drive the sealing plate 72 to move downward. The sealing plate 72 seals the water inlet pipe 65 to prevent a large amount of water from flowing out and causing waste of water resources. At the same time, the floating block 74 will float on the water surface to detect the height of the water level. When the water level drops too low, it will drive the floating block 74 to move downward. The downward movement of the floating block 74 will drive the fixed rod 75 to move downward, and the downward movement of the fixed rod 75 will drive the short plate 76 to move downward. The downward movement of the short plate 76 will contact the control sensor 77, and use the control sensor 77 to give an alarm to remind the user to replenish water in time to prevent the water in the water tank 3 from running out, resulting in the roller pressing device 4 not being cooled in time and causing a safety hazard to the equipment.

[0032] The elastic telescopic link 81 drives the connecting rod 82 to move downward, and the connecting rod 82 drives the roller 83 to fit the ground to detect the ground. When there are still protrusions on the ground after the roller pressing device 4 performs roller pressing, the protrusions will push the roller 83 upward. The upward push of the roller 83 will drive the connecting rod 82 to push upward. The upward push of the connecting rod 82 will drive the free end of the elastic telescopic link 81 to contract upward. The upward contraction of the free end of the elastic telescopic link 81 will drive the fixing plate 84 to move upward. The upward movement of the fixing plate 84 will contact the control switch 85. The electric push rod 86 is started through the control switch 85. When the electric push rod 86 moves downward, it will drive the pressing plate 87 to move downward, and use the pressing plate 87 to squeeze the raised part to prevent the raised part from causing the road surface to be uneven and posing a safety hazard on the road surface.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A road construction roll forming device, comprising a vehicle body (1), characterized in that: It also includes a material pushing device, a scraping device, a sealing device and a detection device. A control rod (2) is fixedly mounted on the top of the vehicle body (1). A water tank (3) is arranged inside the vehicle body (1). A roller pressing device (4) is fixedly mounted on the bottom of the vehicle body (1). The pushing device comprises an elastic telescopic rod (51), a pushing plate (52), a pulley (53), a long rod (54), an arc plate (55), a collection box (56), a rotating plate (57) and a limiting rod (58); the elastic telescopic rod (51) is fixedly mounted on the bottom of the vehicle body (1); the pushing plate (52) is fixedly mounted on the free end of the elastic telescopic rod (51); the pulley (53) is rotatably mounted inside the pushing plate (52); the long rod (54) is fixedly mounted on the surface of the pulley (53); the arc plate (55) is fixedly mounted on the surface of the long rod (54); the collection box (56) is fixedly mounted on the surface of the pushing plate (52); the rotating plate (57) is rotatably mounted on the bottom of the inner wall of the collection box (56); and the limiting rod (58) is rotatably mounted on the top of the collection box (56).

2. A road construction rolling forming device according to claim 1, characterized in that: The long rod (54) rotates and penetrates the surface of the push plate (52), a first torsion spring is arranged between the rotating plate (57) and the collecting box (56), and a second torsion spring is arranged between the limiting rod (58) and the collecting box (56).

3. A road construction rolling forming device according to claim 2, characterized in that: The scraping device comprises a short rod (61), a support plate (62), an elastic telescopic plate (63) and a scraper (64); the short rod (61) is fixedly mounted on the surface of the rolling device (4); the support plate (62) is fixedly mounted on the bottom of the vehicle body (1); the elastic telescopic plate (63) is fixedly mounted on the surface of the support plate (62); the scraper (64) is fixedly mounted on the free end of the elastic telescopic plate (63); the scraper (64) is in contact with the surface of the rolling device (4); a guide groove is provided on the top of the elastic telescopic plate (63); and absorbent cotton is provided on the surface of the scraper (64).

4. A road construction rolling forming device according to claim 3, characterized in that: A water inlet pipe (65) is fixedly mounted on the bottom of the water tank (3); a hollow ring (68) is fixedly mounted on the inner wall of the water inlet pipe (65); the valve stem (66) is slidably mounted on the inner wall of the water inlet pipe (65); the push rod (67) is fixedly mounted on the surface of the valve stem (66); and a first spring is arranged between the valve stem (66) and the water inlet pipe (65).

5. A road construction rolling forming device according to claim 4, characterized in that: The sealing device comprises a circular rod (71) and a sealing plate (72); the circular rod (71) is fixedly mounted on the top of the valve rod (66); and the sealing plate (72) is fixedly mounted on the top of the circular rod (71).

6. A road construction rolling forming device according to claim 5, characterized in that: The water tank (3) is fixedly mounted with a slide groove (73), a floating block (74) is arranged inside the slide groove (73), a fixing rod (75) is fixedly mounted on the top of the floating block (74), a short plate (76) is fixedly mounted on the top of the fixing rod (75), and a control sensor (77) is arranged on the top of the vehicle body (1).

7. A road construction rolling forming device according to claim 6, characterized in that: The detection device comprises an elastic telescopic connecting rod (81), a connecting rod (82), a roller (83), a fixing plate (84) and a control switch (85); the elastic telescopic connecting rod (81) is fixedly mounted on the bottom of the vehicle body (1); the connecting rod (82) is fixedly mounted on the free end of the elastic telescopic connecting rod (81); the roller (83) is rotatably mounted on the surface of the connecting rod (82); the fixing plate (84) is fixedly mounted on the free end of the elastic telescopic connecting rod (81); and the control switch (85) is fixedly mounted on the fixed end of the elastic telescopic connecting rod (81).

8. A road construction rolling forming device according to claim 7, characterized in that: The vehicle body (1) is fixedly mounted with an electric push rod (86), an output end of the electric push rod (86) is fixedly mounted with a pressure plate (87), and the control switch (85) and the electric push rod (86) are electrically connected.

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