Pavement paving accurate leveling device for expressway

Abstract

The invention discloses a pavement paving precise leveling device for an expressway, and relates to the technical field of pavement operation mechanical equipment. A pavement paving precise leveling device for an expressway comprises a paving mechanism, the paving mechanism comprises a paving machine, the front side of the paving machine is fixedly connected with a first beam plate, and the rear side of the paving machine is fixedly connected with a second beam plate; a leveling assembly is assembled on the lower side of the first beam plate. A detection mechanism is assembled on the lower side of the second beam plate; the leveling assembly sequentially comprises a detection mechanism, a leveling mechanism and a slicking mechanism from front to back. The detection mechanism comprises three groups of detection assemblies, and the three groups of detection assemblies jointly and transversely cover a road surface; an angle sensor is connected between every two adjacent detection assemblies; a beam frame assembly is arranged above the three groups of detection assemblies; each group of detection assembly comprises a cross-shaped main board, and the middle part of the upper side of the main board is fixedly connected with a device cover; through adjustment of the detection assembly, the detection mechanism can simulate the state of the road surface, and the adaptability of road surface leveling is improved.

Description

Technical Field

[0001] This invention relates to the field of road construction machinery and equipment, specifically to a precise leveling device for highway road paving. Background Technology

[0002] As a core hub of the transportation system, the quality of highway pavement construction directly determines driving safety, comfort, and service life. With my country's highway network extending into mountainous and hilly areas, construction scenarios are becoming increasingly complex, and traditional leveling techniques can no longer meet the core demands of modern engineering for high precision, high efficiency, and strong adaptability.

[0003] In the development of road paving and leveling technology, several technical stages have emerged, but all have significant limitations: the early reference rope method used steel wire ropes to manually lay out the elevation reference and relied on the experience of the operators for manual adjustment. This method was not only inefficient (requiring an additional 3-5 people to lay and maintain the reference ropes), but also susceptible to wind, vibration, and temperature deformation, which could cause the reference to shift, with elevation deviations often exceeding ±5mm, failing to meet the requirements for high-precision construction. At the same time, this method was extremely unsuitable for transverse arched pavements and curved slope sections, making it difficult to accurately replicate the design curves and easily causing problems such as poor road drainage and localized water accumulation.

[0004] The subsequent development of mechanical floating beam leveling technology involves passively leveling the roadbed by placing a floating beam on top of the paver. Although this simplifies manual operation, it still has inherent defects: the floating beam is mostly an integral structure, which is prone to local suspension when facing the arched road surface with a central bulge, resulting in distortion of the transverse slope detection.

[0005] The patent with publication number CN111962362B discloses an automatic leveling paver that attempts to achieve automatic leveling of the foundation through a front-mounted detection mechanism and screw extension adjustment. Although it improves the adjustment accuracy to some extent, it still has key technical shortcomings: First, the detection dimension is limited, relying only on the front-end flip plate and two sets of distance sensors to detect the longitudinal slope, which cannot capture the transverse arched curves and local protrusions / indentations, leading to misjudgment of leveling arched pavements; Second, the linkage between the paving mechanism and the leveling mechanism is weak, and factors such as material density fluctuations and local uneven material thickness are not considered, making it impossible to achieve fine compensation.

[0006] At the same time, the requirements for leveling technology in highway construction are constantly being upgraded: on the one hand, the development of intelligent transportation is driving the transformation of construction towards "digitalization and unmanned operation", requiring leveling devices to have the ability to collect data in real time, make closed-loop correction, and coordinate with other systems of the paver; on the other hand, complex working conditions place higher demands on the adaptability of leveling devices, and existing technologies are difficult to balance high precision and strong adaptability.

[0007] In summary, existing road paving and leveling technologies suffer from insufficient precision and a lack of a comprehensive closed-loop correction mechanism, failing to meet the stringent requirements of highways for road surface smoothness, elevation accuracy, and lateral arch replication. Therefore, developing a precise road paving and leveling device capable of accurate detection, dynamic adaptive adjustment, and refined correction of local deviations has become an urgent need for the industry. Summary of the Invention

[0008] The purpose of this invention is to provide a precise leveling device for highway pavement paving to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a precise leveling device for highway pavement, comprising a paving mechanism, wherein the paving mechanism includes a paver, a first beam plate is fixedly connected to the front side of the paver, and a second beam plate is fixedly connected to the rear side of the paver; The first beam is equipped with a leveling assembly on its underside; the second beam is equipped with a detection mechanism on its underside. The leveling assembly includes, from front to back, a detection mechanism, a leveling mechanism, and a scraping mechanism. The detection mechanism includes three sets of detection components, which together cover the road surface laterally; angle sensors are connected between adjacent detection components; and a beam frame assembly is installed above the three sets of detection components. Each detection assembly includes a cross-shaped main board, a cover is fixedly connected to the upper center of the main board, and a distance detector penetrating the main board is fixedly connected inside the cover; a first connector is fixedly connected to the upper side of the cover, and a first seat hole is opened through the surface of the first connector; a road surface sensor is installed on the lower side of the main board; and hinge seats of ball joint angle sensors are symmetrically embedded at both ends of the main board. The beam frame assembly includes a third beam plate that is fixedly connected to the first beam plate. A second connector corresponding to the detection component is fixedly connected to the lower side of the third beam plate. A second connector hole is provided through the surface of the second connector. A telescopic assembly is provided between the second connector and the first connector; the telescopic assembly includes a telescopic column, one end of which is fixedly connected to a first column ring that fits into the second seat hole, and the other end of which is fixedly connected to a second column ring that fits into the first seat hole; only the middle first column ring and the second seat hole are fixedly connected; only the middle second column ring and the first seat hole are fixedly connected.

[0010] As a preferred embodiment of the present invention, the edge of the main board is provided with a ball groove, and a ball is connected to the ball groove by a ball hinge. The lower side of the ball is fixedly connected to the road surface sensor. The angle sensor is covered by a sleeve, which is fixedly connected between the hinges of adjacent detection components.

[0011] As a preferred embodiment of the present invention, the flushing mechanism includes a fourth beam plate fixedly connected to the first beam plate; a flushing assembly is provided on the rear side of the lower surface of the fourth beam plate; the flushing assembly includes a first cylinder fixedly connected to the fourth beam plate, and a shovel plate is fixedly connected to the lower end of the first cylinder; an insert plate is fixedly connected to the rear side of the lower surface of the shovel plate, the lower end of the insert plate is sharp, and a slope is provided on the front side of the insert plate, the middle part of the slope is sharp and protrudes forward; The lower end of the insert plate is fixedly embedded with acoustic wave generators at equal and even intervals; the front side of the surface of the shovel plate is fixedly connected with acoustic wave sensors corresponding to the acoustic wave generators at equal and even intervals.

[0012] A material pouring assembly is provided on the front side of the lower surface of the fourth beam plate; the material pouring assembly includes a hopper fixedly connected to the fourth beam plate, and the lower side of the hopper is equidistantly and evenly connected to the material inlets of the corresponding acoustic sensors; a control line for controlling the pouring is fixedly connected between the material inlets and the acoustic sensors.

[0013] The scraping mechanism includes a fifth beam plate that is fixedly connected to the first beam plate, a second cylinder that is fixedly connected to the lower surface of the fifth beam plate, and a cylinder plate that is fixedly connected to the lower end of the second cylinder. The front side of the cylinder plate is provided with three sets of scraper assemblies corresponding to the detection components; each set of scraper assemblies includes a scraper, and both ends of the scraper are provided with sleeves. A flexible connector is fixedly connected between the sleeves and the scraper; adjacent scraper assemblies are hinged by overlapping sleeves; the scraper of the middle scraper assembly is fixedly connected to the cylinder plate.

[0014] An auxiliary strip is fixedly connected to the rear side of the cylinder plate; The upper sides of both ends of the auxiliary strip are respectively fixedly embedded with a first motor controlled by an angle sensor. The output end of the first motor is fixedly connected to a first shaft. The first shaft corresponds to the sleeve plate of the scraper assembly in the middle and the sleeve plate of the scraper assembly at the edge. A synchronous second motor is fixedly connected to the back end of the first motor, and a scraper roller is fixedly connected to the lower side of the output end of the second motor, with a scraper strip assembly corresponding to the edge of the scraper roller.

[0015] As a preferred embodiment of the present invention, the detection mechanism includes a sixth beam plate that is fixedly connected to the second beam plate, a third cylinder that is fixedly connected to the lower side of the sixth beam plate, and a landing gear that is fixedly connected to the output end of the third cylinder. The landing gear is uniformly and evenly fitted with leveling components at equal intervals on its rear side. The leveling components include a data collector that penetrates and is fixedly inserted into the landing gear. A shaft is fixedly connected to the rear side of the data collector. A round shaft is horizontally inserted on the shaft. A wheel frame inserted into the shaft is sleeved on the round shaft. A torsion spring that wraps around the round shaft is fixedly connected between the shaft and the wheel frame. A roller is mounted on the end of the wheel frame away from the round shaft via a rotating shaft.

[0016] Compared with the prior art, the beneficial effects of the present invention are: (1) A precision leveling device for highway road paving, which adjusts the angle of the detection components on both sides by extending the telescopic state of both sides, and the adjacent detection components are connected by an angle sensor, which synchronously records the angle of deflection of the detection components on both sides; until the measurement data of the distance detectors of the three sets of detection components are roughly the same, the detection mechanism can simulate the state of the road surface by adjusting the detection components, and the approximate data is recorded by the angle sensor, thereby improving the adaptability of road leveling.

[0017] (2) A precision leveling device for highway road paving, wherein each set of detection components is ball-jointed with a road sensor, so each road sensor can perform a small-range full coverage scan according to the installation point, thereby increasing the accuracy and range of road surface smoothness perception and further improving the quality of road surface leveling.

[0018] (3) A precision leveling device for highway road paving, which uses a control line to control the material inlet to estimate the material to be fed into the middle and both sides of the road. If the calculated road thickness is deep, there is no need to feed the base material through the material inlet. In addition, the excess soil layer is pushed outward during the movement by the inclined surface opened on the front side of the insert plate, so that it leaves the road. Conversely, the base material is fed through the material inlet according to the position, thereby improving the flexibility of road paving.

[0019] (4) A precision leveling device for highway road paving, wherein a first motor controlled by an angle sensor drives the scraper assembly on the side to deflect by the same angle, thereby conforming to the arched state of the road surface, and then the arched road surface is leveled by following the movement of the paving mechanism; at the same time, an auxiliary strip with a length greater than that of the middle scraper assembly is set on the rear side of the cylinder plate, so as to level the gap between the two sets of scraper assemblies, ensuring the comprehensiveness of the arched road surface leveling and improving the quality of road surface leveling.

[0020] (5) A precision leveling device for highway road paving, wherein a second motor synchronized with the first motor drives a scraper roller to smooth the road surface between the middle scraper assembly and the edge scraper assembly, thereby avoiding obvious ridges on the road surface under the leveling of the scraper assembly, and thus further improving the quality of road surface leveling.

[0021] (6) A precision leveling device for highway road paving, which sets a detection mechanism on the second beam plate to detect the road surface after it has been processed by the paving mechanism, so as to form a closed loop of detection. The roller of the leveling component mounted on the landing gear is lowered to the leveled road surface by the third cylinder. The roller rolls on the road surface by the drive of the paving mechanism. The data collector detects the data of the torsion spring to sense the road surface leveling quality and improves the accuracy of road surface leveling. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the leveling component of the present invention; Figure 3 This is a schematic diagram of the detection mechanism of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A; Figure 5 This is a schematic diagram of the detection component of the present invention; Figure 6 This is a schematic diagram of the flushing mechanism of the present invention; Figure 7 This is a schematic diagram of the flush component of the present invention; Figure 8 This is a schematic diagram of the insert plate of the present invention; Figure 9 This is a schematic diagram of the scraping mechanism of the present invention; Figure 10 For the present invention Figure 9 Enlarged view of point B; Figure 11 This is a schematic diagram of the testing mechanism of the present invention; Figure 12 This is a schematic diagram of the leveling component of the present invention.

[0023] In the diagram: 1. Paving mechanism; 101. Paver; 102. First beam; 103. Second beam; 2. Detection mechanism; 201. Main board; 202. Cover; 203. Distance detector; 204. First connector; 205. First mounting hole; 206. Ball groove; 207. Sphere; 208. Road surface sensor; 209. Hinge; 210. Angle sensor; 211. Cover; 212. Third beam; 213. Second connector; 214. Second mounting hole; 215. Telescopic column; 216. First column ring; 217. Second column ring; 3. Leveling mechanism; 301. Fourth beam; 302. First cylinder; 303. Shovel plate; 304. Insert 305. Plate; 306. Inclined surface; 307. Acoustic wave generator; 308. Acoustic wave sensor; 309. Hopper; 310. Feed port; 4. Scraping mechanism; 401. Fifth beam plate; 402. Second cylinder; 403. Cylinder plate; 404. Scraper; 405. Sleeve plate; 406. Flexible connector; 407. Auxiliary strip; 408. First motor; 409. First machine shaft; 410. Second motor; 411. Scraper roller; 5. Detection mechanism; 501. Sixth beam plate; 502. Third cylinder; 503. Landing gear; 504. Data collector; 505. Shaft frame; 506. Round shaft; 507. Torsion spring; 508. Wheel frame; 509. Roller. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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.

[0025] Example: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 A precision leveling device for highway pavement includes a paving mechanism 1, which includes a paver 101. A first beam 102 is fixedly connected to the front side of the paver 101, and a second beam 103 is fixedly connected to the rear side of the paver 101. The lower side of the first beam 102 is equipped with a leveling component; the lower side of the second beam 103 is equipped with a detection mechanism 5. The leveling assembly, from front to back, includes a detection mechanism 2, a leveling mechanism 3, and a scraping mechanism 4. The detection mechanism 2 includes three sets of detection components, which together cover the road surface laterally; angle sensors 210 are connected between adjacent detection components; and a beam frame assembly is installed above the three sets of detection components. Each detection assembly includes a cross-shaped main board 201. A cover 202 is fixedly connected to the upper center of the main board 201. A distance detector 203 that penetrates the main board 201 is fixedly connected inside the cover 202. A first connector 204 is fixedly connected to the upper side of the cover 202. A first seat hole 205 is opened through the surface of the first connector 204. A road surface sensor 208 is installed on the lower side of the main board 201. Hinge seats 209 of ball joint angle sensors 210 are symmetrically embedded at both ends of the main board 201. The beam frame assembly includes a third beam plate 212 that is fixedly connected to the first beam plate 102. A second connector 213 corresponding to the detection component is fixedly connected to the lower side of the third beam plate 212. A second seat hole 214 is opened through the surface of the second connector 213. A telescopic assembly is provided between the second connector 213 and the first connector 204; the telescopic assembly includes a telescopic post 215, one end of which is fixedly connected to a first post ring 216 that fits into the second seat hole 214, and the other end of which is fixedly connected to a second post ring 217 that fits into the first seat hole 205; only the middle part of the first post ring 216 and the second seat hole 214 are fixedly connected; only the middle part of the second post ring 217 and the first seat hole 205 are fixedly connected.

[0026] Please see Figure 4 , Figure 5 The main board 201 has a ball groove 206 through the edge, and a ball 207 is connected to the ball groove 206 by a ball hinge. The road surface sensor 208 is fixedly connected to the lower side of the ball 207. An angle sensor 210 is covered by a cover 211, which is fixedly connected between the hinges 209 of adjacent detection components.

[0027] Please see Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 The flushing mechanism 3 includes a fourth beam plate 301 fixedly connected to the first beam plate 102; a flushing component is provided on the rear side of the lower surface of the fourth beam plate 301; the flushing component includes a first cylinder 302 fixedly connected to the fourth beam plate 301, and a shovel plate 303 is fixedly connected to the lower end of the first cylinder 302; an insert plate 304 is fixedly connected to the rear side of the lower surface of the shovel plate 303, the lower end of the insert plate 304 is sharp, and a slope 305 is provided on the front side of the insert plate 304, with the middle part of the slope 305 being sharp and protruding forward; The lower end of the insert plate 304 is fixedly embedded with a sound wave sensor 306 at equal and even intervals; the front side of the surface of the shovel plate 303 is fixedly connected with a sound wave sensor 307 corresponding to the sound wave sensor 306 at equal and even intervals.

[0028] A material pouring assembly is provided on the front side of the lower surface of the fourth beam plate 301; the material pouring assembly includes a hopper 308 fixedly connected to the fourth beam plate 301, and the lower side of the hopper 308 is equidistantly and evenly connected to the material inlet 309 of the corresponding acoustic sensor 306; a control line 310 for controlling the pouring is fixedly connected between the material inlet 309 and the acoustic sensor 307.

[0029] The leveling mechanism 4 includes a fifth beam plate 401 that is fixedly connected to the first beam plate 102, a second cylinder 402 that is fixedly connected to the lower surface of the fifth beam plate 401, and a cylinder plate 403 that is fixedly connected to the lower end of the second cylinder 402. The front side of the cylinder plate 403 is provided with three sets of scraper assemblies corresponding to the detection components; each set of scraper assemblies includes a scraper 404, and both ends of the scraper 404 are provided with sleeves 405. A flexible connector 406 is fixedly connected between the sleeves 405 and the scraper 404. The flexible connector 406 is made of a tough material; adjacent scraper assemblies are hinged by overlapping sleeves 405; the scraper 404 of the middle scraper assembly is fixedly connected to the cylinder plate 403.

[0030] An auxiliary strip 407 is fixedly connected to the rear side of the cylinder plate 403. The auxiliary strip 407 is longer than the scraper 404 of the scraper assembly in the middle. The upper sides of both ends of the auxiliary strip 407 are respectively fixedly embedded with a first motor 408 controlled by an angle sensor 210. The output end of the first motor 408 is fixedly connected to a first shaft 409. The first shaft 409 corresponds to the sleeve plate 405 of the scraper assembly that passes through the middle and the sleeve plate 405 of the scraper assembly that is fixed to the edge. The back end of the first motor 408 is fixedly connected to a synchronous second motor 410, and the lower side of the output end of the second motor 410 is fixedly connected to a scraper roller 411, which corresponds to the scraper strip assembly on the side of the scraper roller 411.

[0031] Please see Figure 11 , Figure 12 The detection mechanism 5 includes a sixth beam plate 501 that is fixedly connected to the second beam plate 103. A third cylinder 502 is fixedly connected to the lower side of the sixth beam plate 501. The output end of the third cylinder 502 is fixedly connected to the landing gear 503. The landing gear 503 is uniformly and evenly fitted with leveling components at equal intervals. The leveling components include a data collector 504 that penetrates and is fixed to the landing gear 503. An axle bracket 505 is fixedly connected to the rear side of the data collector 504. A round shaft 506 is horizontally inserted on the axle bracket 505. A wheel bracket 508 inserted into the axle bracket 505 is sleeved on the round shaft 506. A torsion spring 507 that is wound around the round shaft 506 is fixedly connected between the axle bracket 505 and the wheel bracket 508. The data collector 504 monitors the state of the torsion spring 507. A roller 509 is mounted on the end of the wheel bracket 508 away from the round shaft 506 via a rotating shaft.

[0032] The working principle of this invention is as follows: Before the paver 101 starts working, the detection mechanism 2 is used to detect the road surface. The distance detectors 203 of the three sets of detection components measure the actual distance to the road surface when they are flush. When the road surface is level, the telescopic components on both sides remain in their original state. When the road surface is arched, the distance measured by the distance detectors 203 on both sides is greater than the distance measured by the distance detector 203 in the middle. At this time, the angle of the detection components on both sides is adjusted by extending the telescopic state on both sides. The adjacent detection components are connected by the angle sensor 210, and the angle sensor 210 records the angle of deflection of the detection components on both sides. This process continues until the measurement data of the distance detectors 203 of the three sets of detection components are approximately the same. By adjusting the detection components, the detection mechanism 2 can simulate the state of the road surface, and the angle sensor 210 records the approximate data, improving the adaptability of road leveling.

[0033] Each detection component is ball-jointed to a road surface sensor 208, so each road surface sensor 208 can perform a small-area full-coverage scan according to the installation point, increasing the accuracy and range of road surface smoothness perception, and further improving the quality of road surface leveling.

[0034] For various non-horizontal road surface conditions, the road surface can be leveled by the leveling component of the leveling mechanism 3. The depth of the insert plate 304 inserted into the road surface is adjusted by the first cylinder 302, thereby adjusting the thickness of the road surface. Based on the thickness of the road surface adjusted by the leveling component, the scraper component is lowered by the second cylinder 402. Sound waves are generated within the road surface by a sonic sensor 306 embedded at the lower end of the insert plate 304. The depth of the sonic sensor 306 is detected by a sonic sensor 307 embedded on the shovel plate 303. Based on the detection results, the material outlet 309 is controlled by the control line 310 to estimate the material to be dispensed into the middle and sides of the road surface. If the calculated road surface thickness is deep, there is no need to dispense additional base material through the material outlet 309. Instead, the excess soil layer is pushed outward by the inclined surface 305 on the front side of the insert plate 304 during the movement, causing it to leave the road surface. Conversely, base material is dispensed through the material outlet 309 according to the location, thus improving the flexibility of road surface leveling.

[0035] The arched road surface is shaped and fitted by the leveling mechanism 4. After the road surface is initially leveled by the leveling component of the leveling mechanism 3, the first motor 408, controlled by the angle sensor 210, drives the side scraper component to deflect by the same angle, thereby fitting the arched state of the road surface. Then, the arched road surface is leveled by following the movement of the paving mechanism 1. At the same time, an auxiliary strip 407 with a length greater than that of the middle scraper component is set on the rear side of the cylinder plate 403, so as to level the gap between the two sets of scraper components, ensuring the comprehensiveness of the arched road surface leveling and improving the quality of road surface leveling.

[0036] The second motor 410, synchronized with the first motor 408, drives the scraper roller 411 to smooth the surface between the middle scraper assembly and the edge scraper assembly. This avoids obvious ridges on the road surface after the scraper assembly is leveled, thereby further improving the quality of road surface leveling.

[0037] By setting a detection mechanism 5 on the second beam plate 103, the road surface after being processed by the paving mechanism 1 is detected again to form a closed loop of detection. The roller 509 of the leveling component mounted on the landing gear 503 is lowered to the leveled road surface by the third cylinder 502. Driven by the paving mechanism 1, the roller 509 rolls on the road surface. The data collector 504 detects the data of the torsion spring 507 to sense the road surface leveling quality and improves the accuracy of road surface leveling.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision leveling device for highway road paving, comprising a paving mechanism (1), wherein the paving mechanism (1) comprises a paver (101), wherein a first beam plate (102) is fixedly connected to the front side of the paver (101), and a second beam plate (103) is fixedly connected to the rear side of the paver (101). The first beam (102) is equipped with a leveling assembly on its lower side; characterized in that: The second beam (103) is equipped with a detection mechanism (5) on its lower side; The leveling assembly comprises, from front to back, a detection mechanism (2), a leveling mechanism (3), and a scraping mechanism (4). The detection mechanism (2) includes three sets of detection components; angle sensors (210) are connected between adjacent detection components; a beam frame assembly is provided above the detection components; The detection assembly includes a main board (201), a connector cover (202) fixed in the middle of the upper side of the main board (201), a distance detector (203) fixed inside the cover (202); a first connector (204) fixed to the upper side of the cover (202), a first seat hole (205) opened on the first connector (204); a road surface sensor (208) installed on the lower side of the main board (201); and hinge seats (209) of ball joint angle sensors (210) embedded at both lateral ends of the main board (201). The beam frame assembly includes a third beam plate (212) that is fixed to the first beam plate (102), and a second connector (213) is fixed to the lower side of the third beam plate (212). A second seat hole (214) is provided on the second connector (213). A telescopic assembly is provided between the second connector (213) and the first connector (204); the telescopic assembly includes a telescopic column (215), one end of which is fixedly connected to a first column ring (216) that fits into the second seat hole (214), and the other end of which is fixedly connected to a second column ring (217) that fits into the first seat hole (205); only the middle first column ring (216) and the second seat hole (214) are fixedly connected; only the middle second column ring (217) and the first seat hole (205) are fixedly connected.

2. The precise leveling device for highway pavement paving according to claim 1, characterized in that: The edge of the main board (201) is provided with a ball groove (206), and a ball (207) is connected to the ball groove (206) by a ball hinge. The lower side of the ball (207) is correspondingly fixed to the road surface sensor (208). The angle sensor (210) is covered by a cover (211), which is fixedly connected between the hinges (209) of the adjacent detection components.

3. The precise leveling device for highway pavement paving according to claim 1, characterized in that: The flushing mechanism (3) includes a fourth beam plate (301) fixedly connected to the first beam plate (102); a flushing component is provided on the rear side of the lower surface of the fourth beam plate (301); the flushing component includes a first cylinder (302) fixedly connected to the fourth beam plate (301), and a shovel plate (303) is fixedly connected to the lower end of the first cylinder (302); an insert plate (304) is fixedly connected to the rear side of the lower surface of the shovel plate (303), the lower end of the insert plate (304) is sharp, and a slope (305) is provided on the front side of the insert plate (304), the middle part of the slope (305) is sharp and protrudes forward; The lower end of the insert plate (304) is fixedly embedded with a sound wave device (306) at equal and uniform intervals; the front side of the surface of the shovel plate (303) is fixedly connected with a sound wave sensor (307) corresponding to the sound wave device (306) at equal and uniform intervals.

4. The precise leveling device for highway pavement paving according to claim 3, characterized in that: A material pouring assembly is provided on the front side of the lower surface of the fourth beam plate (301); the material pouring assembly includes a hopper (308) fixedly connected to the fourth beam plate (301), and the lower side of the hopper (308) is uniformly and equidistantly connected to the material inlets (309) of the corresponding acoustic wave sensor (306); a control line (310) for controlling the material pouring is fixedly connected between the material inlet (309) and the acoustic wave sensor (307).

5. The precise leveling device for highway pavement paving according to claim 4, characterized in that: The scraping mechanism (4) includes a fifth beam plate (401) fixedly connected to the first beam plate (102), and a second cylinder (402) is fixedly connected to the lower surface of the fifth beam plate (401), and a cylinder plate (403) is fixedly connected to the lower end of the second cylinder (402). The front side of the cylinder plate (403) is provided with three sets of scraper assemblies corresponding to the detection components; each set of scraper assemblies includes a scraper (404), and both ends of the scraper (404) are provided with sleeves (405). A flexible connector (406) is fixedly connected between the sleeves (405) and the scraper (404); adjacent scraper assemblies are hinged by overlapping sleeves (405); the scraper (404) of the middle scraper assembly is fixedly connected to the cylinder plate (403).

6. The precise leveling device for highway pavement paving according to claim 5, characterized in that: An auxiliary strip (407) is fixedly connected to the rear side of the cylinder plate (403). The upper sides of both ends of the auxiliary strip (407) are respectively fixedly embedded with a first motor (408) controlled by an angle sensor (210). The output end of the first motor (408) is fixedly connected to a first shaft (409). The first shaft (409) corresponds to the sleeve plate (405) of the scraper assembly in the middle and the sleeve plate (405) of the scraper assembly at the edge is fixedly connected to the first shaft (409). The back end of the first motor (408) is fixedly connected to a synchronous second motor (410), and the lower side of the output end of the second motor (410) is fixedly connected to a scraper roller (411), which corresponds to the scraper strip assembly on the side of the scraper roller (411).

7. The precise leveling device for highway pavement paving according to claim 1, characterized in that: The detection mechanism (5) includes a sixth beam plate (501) that is fixedly connected to the second beam plate (103), and a third cylinder (502) is fixedly connected to the lower side of the sixth beam plate (501). The output end of the third cylinder (502) is fixedly connected to the landing gear (503). The landing gear (503) is uniformly and evenly equipped with leveling components at equal intervals on its rear side. The leveling components include a data collector (504) that penetrates and is fixed to the landing gear (503). The rear side of the data collector (504) is fixedly connected to a shaft bracket (505). A circular shaft (506) is horizontally inserted on the shaft bracket (505). A wheel bracket (508) inserted into the shaft bracket (505) is sleeved on the circular shaft (506). A torsion spring (507) that is wound around the circular shaft (506) is fixedly connected between the shaft bracket (505) and the wheel bracket (508). A roller (509) is installed at the end of the wheel bracket (508) away from the circular shaft (506) via a rotating shaft.

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