A road reconstruction subgrade graded gravel paving device

Abstract

This invention provides a graded crushed stone paving device for road reconstruction subgrade, comprising a support assembly, a power assembly, and a material feeding assembly. The support assembly includes a conical box, which is fixedly connected to a material pipe. The conical box is connected to a U-plate, and the U-plate is connected to symmetrical long rods, which are respectively connected to guide blocks. The U-plate is connected to a motor bracket. The power assembly includes a motor, which is connected to a motor bracket. The output shaft of the motor is connected to a drive gear, and the U-plate bearing is connected to the central shaft of symmetrical driven gears. This invention relates to the field of road reconstruction technology, and particularly to a graded crushed stone paving device for road reconstruction subgrade. Addressing the shortcomings of existing technologies, this invention develops a graded crushed stone paving device for road reconstruction subgrade. This invention disperses and spreads graded crushed stone, allowing it to fall onto the subgrade surface, then disperses, vertically compresses, flattens, compacts, and rolls it to achieve graded crushed stone paving.

Description

Technical Field

[0001] This invention relates to the field of road reconstruction technology, and in particular to a road reconstruction subgrade graded crushed stone paving device. Background Technology

[0002] Graded crushed stone is a mixture of aggregates of various sizes. When its gradation meets the technical specifications, it is called graded aggregate. Graded aggregate includes graded crushed stone, graded crushed gravel (a mixture of crushed stone and gravel, often with oversized gravel particles crushed and mixed with gravel to form crushed gravel), and graded gravel (or graded sand and gravel). A mixture of coarse and fine crushed stone aggregates and stone chips in certain proportions, when its particle composition meets the requirements of dense gradation, is called graded crushed stone. Graded crushed stone is generally composed of crushed stone pre-screened into several (e.g., four) different sizes, or it can be composed of unscreened crushed stone and stone chips.

[0003] Currently, there is a lack of equipment that can disperse and spread graded crushed stone, allowing the crushed stone to fall onto the roadbed surface, and then break it up, vertically compress it, lay it flat, compact it, and roll it to achieve the paving of graded crushed stone.

[0004] Therefore, in order to address the above problems, a graded crushed stone paving device for road reconstruction subgrade is proposed to solve these problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention develops a graded crushed stone paving device for road reconstruction. This invention disperses and spreads graded crushed stone, allowing it to fall onto the roadbed surface. Then, the stone is broken up, vertically squeezed, flattened, compacted, and rolled to achieve graded crushed stone paving.

[0006] The technical solution to the technical problem solved by this invention is as follows: This invention provides a road reconstruction subgrade graded crushed stone paving device, including a support assembly, a power assembly, and a material feeding assembly; the support assembly includes a conical box, the conical box is fixedly connected to a material pipe, the conical box is connected to a U-plate, the U-plate is connected to symmetrical long rods, the symmetrical long rods are respectively connected to guide blocks, and the U-plate is connected to a motor bracket; the power assembly includes a motor, the motor bracket is connected to the motor, the output shaft of the motor is connected to a drive gear, the U-plate bearing is connected to the central shaft of symmetrical driven gears, and the symmetrical driven gears are... The driving gear is not engaged, and the eccentric ends of the symmetrical driven gears are respectively connected to power blocks; the symmetrical power blocks are respectively set in transverse grooves, and the symmetrical transverse grooves are respectively connected to guide rods. The symmetrical guide rods pass through the corresponding guide blocks, and the two ends of each transverse groove are respectively rotatably connected to one end of an upper connecting rod; the feeding assembly includes a mounting plate, and the other end of each upper connecting rod is respectively rotatably connected to the mounting plate. The mounting plate is connected to a hollow round rod, the middle of the hollow round rod is connected to a conical blocking plate, and the lower end of the hollow round rod is connected to a leveling cone. The conical blocking plate matches the material pipe. The conical blocking plate is used to achieve intermittent feeding of crushed stone, and the leveling cone is used to level the falling crushed stone.

[0007] As an optimization, the two ends of the symmetrical long rods are rotatably connected to long shafts. The upper end of each long shaft is connected to an upper L-shaped rod. The round rod of each upper L-shaped rod is respectively set in the corresponding transverse groove. Each long shaft is connected to a stirring plate. Each long shaft passes through the conical box. The lower end of each long shaft is connected to a leveling rod. By setting the round rod of the upper L-shaped rod in the transverse groove, the stirring plate and the leveling rod are driven to move. The stirring plate oscillates back and forth to stir the crushed stone, thereby mixing the crushed stone and promoting its movement towards the material pipe area for easy falling. The leveling rod oscillates back and forth to level the falling crushed stone.

[0008] As an optimization, the material pipe is rotatably connected to a ring, which has a set of straight grooves. The lower end of the material pipe is connected to a fixed plate, which also has a set of straight grooves. Each straight groove contains a guide rod, which is connected to the fixed plate. Each straight groove contains a slider, which passes through its corresponding slider. Each slider is connected to a power rod, which is located in its corresponding straight groove. Each slider is connected to a partition plate, and adjacent partition plates are in contact with each other. By using mutually contacting partition plates, the partition plate areas continuously change, cutting through the material pipe area and achieving dispersed falling of crushed stone. Compared to a single cone-shaped area formed by falling from the material pipe, multiple falling areas are formed, making paving more convenient.

[0009] As an optimization, a long shaft connects to the lower L-shaped rod, and the annular connection is to the slide groove, with the circular rod of the lower L-shaped rod disposed within the slide groove. By disposing the lower L-shaped rod within the slide groove, power is provided for the movement of the partition plate.

[0010] As an optimization, a leveling component is also included. This component comprises symmetrical vertical sliders, each connected to the central axis of an impact column. The conical box is connected to symmetrical vertical rods, each with a vertical guide groove. The symmetrical vertical sliders are nested within their respective guide grooves. The symmetrical vertical rods are connected to horizontal guide grooves, each containing two horizontal sliders. The symmetrical vertical sliders are rotatably connected to the upper ends of two lower connecting rods. The lower end of each lower connecting rod is rotatably connected to a corresponding horizontal slider. Each horizontal slider is connected to the central axis of a leveling column. By employing a reciprocating vertically moving impact column, the crushed stone is compacted. By employing a reciprocating horizontally moving leveling column, the crushed stone is leveled, achieving a leveling-compacting-leveling process, ultimately resulting in the successful spreading of the crushed stone.

[0011] As an optimization, each of the horizontal sliders is fixedly connected to the corresponding flat column.

[0012] As an optimization, the rear paving column bearing is connected to the corresponding horizontal slider, the central shaft of the rear paving column is connected to a gear, and a horizontal guide groove is connected to a rack, with the gear meshing with the rack. By using gear and rack meshing, the rear paving column rotates to roll and compact the crushed stone, achieving the flattening of the crushed stone.

[0013] As an optimization, one of the guide crossbars is connected to a long mounting rod, and both ends of the long mounting rod are rotatably connected to one end of a long connecting rod, while the other ends of the symmetrical long connecting rods are rotatably connected to the corresponding vertical sliders. By using a long connecting rod for rotatable connection, power transmission is achieved, providing power for the movement of the impact column and the flat column.

[0014] As an optimization, the U-plate is connected to a guide rod, which passes through the mounting plate and is housed within the hollow round rod. By placing the guide rod within the hollow round rod, the stability of the conical blocking plate and the leveling cone's movement is enhanced.

[0015] As an optimization, the central shafts of the symmetrical driven gears are respectively connected to auxiliary stirring plates. The auxiliary stirring plates rotate and stir the crushed stone, facilitating the movement of the crushed stone towards the feed pipe area.

[0016] The effects described in the invention are merely those of the embodiments, and not all the effects of the invention. The above technical solutions have the following advantages or beneficial effects:

[0017] 1. This device uses interlocking partitions that continuously change their arrangement, cutting through the material pipe area to disperse the falling crushed stone. Compared to a single falling stone forming a cone-shaped area from the material pipe, this creates multiple falling areas, each with a significantly lower height than a single falling stone, making paving easier. The cone-shaped blocking plate repeatedly enters and exits the material pipe, allowing for intermittent crushed stone feeding. The leveling cone moves back and forth within the large area formed by the partitions, leveling the falling crushed stone. The leveling rod moves the crushed stone falling from adjacent partitions and the area formed by the material pipe, achieving initial leveling and the first leveling of the falling crushed stone.

[0018] 2. This device uses vertically distributed impact columns and flattening columns. The impact columns reciprocate vertically to compact the crushed stone, while the flattening columns reciprocate horizontally to spread the crushed stone. This process of spreading, compacting, and spreading ultimately achieves the paving of the crushed stone. When gear and rack meshing is used, the flattening columns on the rear side roll the crushed stone, further improving the paving of the crushed stone. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0021] Figure 2 This is a three-dimensional structural diagram of the support assembly of the present invention. Figure 1 .

[0022] Figure 3 This is a three-dimensional structural diagram of the support assembly of the present invention. Figure 2 .

[0023] Figure 4 This is a partial three-dimensional structural diagram of the power assembly and the feeding assembly of the present invention.

[0024] Figure 5 This is a partial three-dimensional structural diagram of the power component and leveling component of the present invention.

[0025] Figure 6 This is a partial three-dimensional structural diagram of the feeding assembly of the present invention.

[0026] Figure 7 This is a three-dimensional structural diagram of the flattening component of the present invention.

[0027] Figure 8 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0028] Figure 9 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 .

[0029] In the picture:

[0030] 1. Support assembly; 11. Conical box; 12. U-plate; 13. Long rod; 14. Guide block; 15. Motor bracket; 16. Guide vertical rod; 17. Material tube; 18. Fixing plate; 19. Vertical rod; 110. Vertical guide groove; 111. Horizontal guide groove; 112. Straight groove; 113. Guide round rod.

[0031] 2. Power assembly, 21. Motor, 22. Drive gear, 23. Power block, 24. Upper L-rod, 25. Driven gear, 26. Upper connecting rod, 27. Cross slot, 28. Guide cross bar, 29. Long mounting rod, 210. Long connecting rod;

[0032] 3. Feeding assembly; 31. Long shaft; 32. Agitator plate; 33. Mounting plate; 34. Hollow round rod; 35. Conical blocking plate; 36. Leveling rod; 37. Leveling cone; 38. Slide groove; 39. Ring; 310. Straight groove; 311. Power round rod; 312. Slider; 313. Divider plate; 314. Lower L rod; 315. Auxiliary agitator plate.

[0033] 4. Flattening component, 41. Impact column, 42. Flattening column, 43. Vertical slider, 44. Horizontal slider, 45. Lower connecting rod, 46. Rack, 47. Gear. Detailed Implementation

[0034] To clearly illustrate the technical features of this solution, the invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the invention. To simplify the disclosure of the invention, components and arrangements of specific examples are described below. Furthermore, reference numerals and / or letters may be repeated in different examples. This repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted to avoid unnecessarily limiting the invention. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] like Figures 1 to 9As shown in Embodiment 1: A road reconstruction subgrade graded crushed stone paving device includes a support assembly 1, a power assembly 2, and a material feeding assembly 3. The support assembly 1 includes a conical box 11, which is fixedly connected to a material pipe 17. The conical box 11 is connected to a U-plate 12, and the U-plate 12 is connected to symmetrical long rods 13. The symmetrical long rods 13 are respectively connected to guide blocks 14, and the U-plate 12 is connected to a motor bracket 15. The power assembly 2 includes a motor 21, which is connected to the motor bracket 15. The output shaft of the motor 21 is connected to a drive gear 22, and the U-plate 12 is connected to the central shaft of symmetrical driven gears 25 by bearings. The symmetrical driven gears 25 respectively mesh with the drive gear. Wheel 22, the eccentric portion of the symmetrical driven gear 25 is connected to the power block 23; the symmetrical power block 23 is respectively set in the transverse groove 27, the symmetrical transverse groove 27 is respectively connected to the guide crossbar 28, the symmetrical guide crossbar 28 respectively passes through the corresponding guide block 14, and the two ends of each transverse groove 27 are respectively rotatably connected to one end of the upper connecting rod 26; the feeding assembly 3 includes a mounting plate 33, the other end of each upper connecting rod 26 is respectively rotatably connected to the mounting plate 33, the mounting plate 33 is connected to the hollow round rod 34, the middle part of the hollow round rod 34 is connected to the conical blocking plate 35, the lower end of the hollow round rod 34 is connected to the leveling cone 37, and the conical blocking plate 35 matches the material pipe 17. The conical blocking plate 35 is used to achieve intermittent feeding of crushed stone, and the leveling cone 37 is used to level the falling crushed stone.

[0036] The two ends of the symmetrical long rods 13 are rotatably connected to long shafts 31. The upper end of each long shaft 31 is connected to an upper L-shaped rod 24. The round rod of each upper L-shaped rod 24 is respectively set in the corresponding transverse groove 27. Each long shaft 31 is connected to a stirring plate 32. Each long shaft 31 passes through the conical box 11. The lower end of each long shaft 31 is connected to a leveling rod 36. By setting the round rod of the upper L-shaped rod 24 in the transverse groove 27, the stirring plate 32 and the leveling rod 36 are driven to move. The stirring plate 32 oscillates back and forth to stir the crushed stone, thereby mixing the crushed stone and promoting its movement towards the material pipe 17 area for easy falling. The leveling rod 36 oscillates back and forth to level the falling crushed stone.

[0037] The material pipe 17 is rotatably connected to a ring 39, which has a set of straight grooves 310. The lower end of the material pipe 17 is connected to a fixing plate 18, which has a set of straight grooves 112. Each straight groove 112 contains a guide rod 113, which is connected to the fixing plate 18. Each straight groove 112 contains a slider 312, which passes through its corresponding slider 312. Each slider 312 is connected to a power rod 311, which is located within its corresponding straight groove 310. Each slider 312 is connected to a partition plate 313, and adjacent partition plates 313 are in contact with each other. By using the contacting partition plates 313, the areas formed by the partition plates 313 continuously change, cutting the area of ​​the material pipe 17 and achieving dispersed falling of crushed stone. Compared with the cone-shaped area formed by falling solely from the material pipe 17, multiple falling areas are formed, making paving more convenient.

[0038] A long shaft 31 connects to a lower L-shaped rod 314, and a ring 39 connects to a sliding groove 38. The round rod of the lower L-shaped rod 314 is disposed within the sliding groove 38. By disposing the lower L-shaped rod 314 within the sliding groove 38, power is provided for the movement of the partition plate 313.

[0039] A guide crossbar 28 is connected to a long mounting rod 29. Both ends of the long mounting rod 29 are rotatably connected to one end of a long connecting rod 210, and the other ends of the symmetrical long connecting rods 210 are rotatably connected to the corresponding vertical sliders 43. Power transmission is achieved through the rotatable connection of the long connecting rods 210, providing power for the movement of the impact column 41 and the flat column 42.

[0040] The U-plate 12 is connected to a guide rod 16, which passes through the mounting plate 33 and is disposed within the hollow round rod 34. By disposing the guide rod 16 within the hollow round rod 34, the stability of the movement of the conical blocking plate 35 and the leveling cone 37 is enhanced.

[0041] The workflow of this embodiment is as follows:

[0042] The conical box 11 is installed on the moving mechanism to drive the device to move along the roadbed. In the initial state, the conical blocking plate 35 is inside the material pipe 17, blocking the material pipe 17. Graded crushed stone is poured into the conical box 11.

[0043] The operating mechanism moves the device, and the motor 21 is turned on. The motor 21 drives the driving gear 22 to rotate, which in turn drives the driven gear 25 to rotate. The driven gear 25 drives the power block 23 to move within the transverse groove 27. The power block 23 drives the transverse groove 27 to reciprocate. The transverse groove 27 drives the guide bar 28 to reciprocate along the guide block 14. The transverse groove 27 drives the upper L-bar 24 to swing back and forth. The upper L-bar 24 drives the long shaft 31 to rotate back and forth. The long shaft 31 drives the stirring plate 32 and the leveling rod 36 to swing back and forth. The transverse groove 27 drives the upper connecting rod 26 to swing back and forth. The upper connecting rod 26 drives the mounting plate 33 to move back and forth. The mounting plate 33 drives the hollow round rod 34 to move back and forth along the guide vertical rod 16. The hollow round rod 34 drives the conical blocking plate 35 and the leveling cone 37. The reciprocating motion causes the conical blocking plate 35 to repeatedly enter and exit the material pipe 17. The long shaft 31 drives the round rod of the lower L rod 314 to move along the slide groove 38. The lower L rod 314 drives the slide groove 38 to swing back and forth. The slide groove 38 drives the ring 39 to rotate back and forth. The ring 39 drives the power round rod 311 to swing along the straight groove 310. The power round rod 311 drives the slider 312 to move along the guide round rod 113 in the straight groove 112. The slider 312 drives the partition plate 313 to move back and forth. The partition plate 313 is below the material pipe 17, dividing the material pipe 17 into multiple rockfall areas, and the size of the areas changes continuously, causing the crushed stone to fall onto the roadbed. The leveling rod 36 moves the fallen crushed stone to achieve initial leveling. The leveling cone 37 moves back and forth and vertically knocks the crushed stone to achieve leveling.

[0044] The system also includes a leveling component 4, which comprises symmetrical vertical sliders 43. Each symmetrical vertical slider 43 is connected to the central axis of an impact column 41. The conical box 11 is connected to symmetrical vertical rods 19, each symmetrical vertical rod 19 having a vertical guide groove 110. Each symmetrical vertical slider 43 is nested within its corresponding vertical guide groove 110. Each symmetrical vertical rod 19 is connected to a horizontal guide groove 111, each symmetrical horizontal guide groove 111 containing two horizontal sliders 44. Each symmetrical vertical slider 43 is rotatably connected to the upper ends of two lower connecting rods 45, and the lower end of each lower connecting rod 45 is rotatably connected to its corresponding horizontal slider 44. Each horizontal slider 44 is connected to the central axis of a leveling column 42. By using the reciprocating vertically moving impact column 41, the crushed stone is compacted; by using the reciprocating horizontally moving leveling column 42, the crushed stone is leveled, achieving leveling-compacting-leveling, ultimately resulting in the spreading of the crushed stone.

[0045] Example 2: Each of the horizontal sliders 44 is fixedly connected to the corresponding flat column 42.

[0046] The workflow of this embodiment is as follows:

[0047] The guide crossbar 28 drives the long mounting rod 29 to reciprocate, which in turn drives the long connecting rod 210 to swing back and forth. The long connecting rod 210 drives the vertical slider 43 to reciprocate within the vertical guide groove 110. The vertical slider 43 drives the impact column 41 to reciprocate, thus compacting the crushed stone. The vertical slider 43 drives the lower connecting rod 45 to swing back and forth, which in turn drives the horizontal slider 44 to reciprocate along the horizontal guide groove 111. The horizontal slider 44 drives the paving column 42 to reciprocate, thus paving the crushed stone evenly.

[0048] Example 3: The rear paving column 42 is connected to the corresponding horizontal slider 44 via a bearing. The central shaft of the rear paving column 42 is connected to a gear 47, and a horizontal guide groove 111 is connected to a rack 46. The gear 47 meshes with the rack 46. By using gear and rack meshing, the rear paving column 42 rotates to roll and compact the crushed stone, thus achieving the flattening of the crushed stone.

[0049] The workflow of this embodiment is as follows:

[0050] When the rear flat column 42 moves back and forth, it drives the gear 47 to move back and forth. When the gear 47 moves back and forth, it meshes with the rack 46 and rotates, thereby driving the rear flat column 42 to rotate back and forth, thus achieving rolling and leveling.

[0051] Example 4: This example further elaborates on Example 1, wherein the central shafts of the symmetrical driven gears 25 are respectively connected to auxiliary stirring plates 315. The auxiliary stirring plates 315 rotate and stir the crushed stone, facilitating the movement of the crushed stone towards the material pipe 17 area.

[0052] The workflow of this embodiment is as follows:

[0053] When the driven gear 25 rotates, it drives the auxiliary stirring plate 315 to rotate, thereby achieving the mixing of graded crushed stone, making it uniform, and causing the crushed stone to approach the material pipe 17.

[0054] This device uses interlocking partition plates 313, whose areas change continuously, cutting through the material pipe 17 area to disperse the falling crushed stone. Compared to a single falling stone forming a conical area from the material pipe 17, multiple falling areas are formed, with the height of the crushed stone in each area being much smaller than that of a single falling stone, making paving easier. The conical blocking plate 35 repeatedly enters and exits the material pipe 17 to achieve intermittent feeding of crushed stone. The leveling cone 37 moves back and forth within the large area formed by the partition plates 313 to level the falling crushed stone. The leveling rod 36 moves the crushed stone falling from the adjacent area formed by the partition plates 313 and the material pipe 17 to achieve initial leveling, thus achieving the first leveling of the falling crushed stone.

[0055] This device employs vertically distributed impact columns 41 and paving columns 42. The impact columns 41 reciprocate vertically to compact the crushed stone, while the paving columns 42 reciprocate horizontally to spread the crushed stone. This process of spreading, compacting, and spreading ultimately achieves the paving of the crushed stone. When gear and rack meshing is used, the paving columns 42 on the rear side roll the crushed stone, further improving the paving of the crushed stone.

[0056] Although the specific embodiments of the invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the invention. Based on the technical solutions of the invention, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the invention.

Claims

1. A roadbed graded crushed stone paving device for road reconstruction, characterized in that: It includes a support assembly (1), a power assembly (2), and a feeding assembly (3); The support assembly (1) includes a conical box (11), the conical box (11) is fixedly connected to the material pipe (17), the conical box (11) is connected to a U-plate (12), the U-plate (12) is connected to symmetrical long rods (13), the symmetrical long rods (13) are respectively connected to guide blocks (14), and the U-plate (12) is connected to a motor bracket (15). The power assembly (2) includes a motor (21), the motor bracket (15) is connected to the motor (21), the output shaft of the motor (21) is connected to the drive gear (22), the U plate (12) bearing is connected to the central shaft of the symmetrical driven gears (25), the symmetrical driven gears (25) respectively mesh with the drive gears (22), and the eccentric part of the symmetrical driven gears (25) is respectively connected to the power block (23). The symmetrical power blocks (23) are respectively set in the transverse grooves (27), the symmetrical transverse grooves (27) are respectively connected to the guide rods (28), the symmetrical guide rods (28) pass through the corresponding guide blocks (14), and the two ends of each transverse groove (27) are respectively rotatably connected to one end of the upper connecting rod (26). The feeding assembly (3) includes a mounting plate (33), the other end of each of the upper connecting rods (26) is rotatably connected to the mounting plate (33), the mounting plate (33) is connected to a hollow round rod (34), the middle part of the hollow round rod (34) is connected to a conical blocking plate (35), the lower end of the hollow round rod (34) is connected to a leveling cone (37), and the conical blocking plate (35) matches the material tube (17). The two ends of the symmetrical long rods (13) are respectively rotatably connected to long shafts (31), the upper end of each long shaft (31) is connected to an upper L rod (24), the round rod of each upper L rod (24) is respectively set in the corresponding transverse groove (27), each long shaft (31) is connected to a stirring plate (32), each long shaft (31) passes through the conical box (11), and the lower end of each long shaft (31) is connected to a leveling rod (36).

2. The road reconstruction subgrade graded crushed stone paving device according to claim 1, characterized in that: The material tube (17) is rotatably connected to the ring (39), the ring (39) is provided with a set of straight grooves (310), the lower end of the material tube (17) is connected to the fixing plate (18), the fixing plate (18) is provided with a set of straight grooves (112), each straight groove (112) is provided with a guide rod (113), each guide rod (113) is connected to the fixing plate (18), each straight groove (112) is provided with a slider (312), each guide rod (113) passes through the corresponding slider (312), each slider (312) is connected to a power rod (311), each power rod (311) is provided in the corresponding straight groove (310), each slider (312) is connected to a partition plate (313), and adjacent partition plates (313) are in contact with each other.

3. The road reconstruction subgrade graded crushed stone paving device according to claim 2, characterized in that: A long shaft (31) is connected to a lower L rod (314), and a ring (39) is connected to a groove (38). The round rod of the lower L rod (314) is disposed in the groove (38).

4. The road reconstruction subgrade graded crushed stone paving device according to claim 1, characterized in that: It also includes a leveling component (4), which includes symmetrical vertical sliders (43), the symmetrical vertical sliders (43) are respectively connected to the central axis of the impact column (41), the conical box (11) is connected to symmetrical vertical rods (19), the symmetrical vertical rods (19) are respectively provided with vertical guide grooves (110), the symmetrical vertical sliders (43) are respectively nested in the corresponding vertical guide grooves (110), the symmetrical vertical rods (19) are respectively connected to horizontal guide grooves (111), the symmetrical horizontal guide grooves (111) are respectively nested in two horizontal sliders (44), the symmetrical vertical sliders (43) are respectively rotatably connected to the upper ends of two lower connecting rods (45), the lower end of each lower connecting rod (45) is respectively rotatably connected to the corresponding horizontal slider (44), and each horizontal slider (44) is respectively connected to the central axis of the leveling column (42).

5. A road reconstruction subgrade graded crushed stone paving device according to claim 4, characterized in that: Each of the horizontal sliders (44) is fixedly connected to the corresponding flat column (42).

6. A road reconstruction subgrade graded crushed stone paving device according to claim 4, characterized in that: The rear flat column (42) is connected to the corresponding horizontal slider (44) by a bearing. The central shaft of the rear flat column (42) is connected to a gear (47). A horizontal guide groove (111) is connected to a rack (46). The gear (47) meshes with the rack (46).

7. A road reconstruction subgrade graded crushed stone paving device according to claim 4, characterized in that: One of the guide crossbars (28) is connected to a long mounting rod (29), and the two ends of the long mounting rod (29) are respectively rotatably connected to one end of a long connecting rod (210), and the other end of the symmetrical long connecting rod (210) is respectively rotatably connected to the corresponding vertical slider (43).

8. A road reconstruction subgrade graded crushed stone paving device according to claim 1, characterized in that: The U-plate (12) is connected to the guide rod (16), the guide rod (16) passes through the mounting plate (33), and the guide rod (16) is disposed inside the hollow round rod (34).

9. A road reconstruction subgrade graded crushed stone paving device according to claim 1, characterized in that: The central shafts of the symmetrical driven gears (25) are respectively connected to auxiliary stirring plates (315).

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