An adjustable roadbed pavement flattening device

Abstract

This utility model discloses an adjustable roadbed and pavement leveling device, relating to the field of road construction. It includes a vehicle body, a push bucket at the front end of the vehicle body, an adjustable push bucket angle adjustment component between the push bucket and the vehicle body, and a pressing component for pressing the road surface at the rear end of the vehicle body. A scraper is fixedly installed inside the push bucket. This utility model, by using a push bucket and scraper, allows the vehicle body to drive the push bucket and scraper to level the soil as it moves forward. When the scraper moves forward, two inclined sections guide excess soil from both sides to a straight section in the middle, preventing excess soil from spreading onto the already leveled road surface. With the continuous advancement of the straight section and the inclined section, the soil is evenly and smoothly laid on the roadbed or pavement, ensuring the smoothness and uniformity of the road surface.

Description

Technical Field

[0001] This utility model relates to the field of road construction technology, and in particular to an adjustable roadbed and pavement leveling device. Background Technology

[0002] A roadbed is the foundation of a track or road surface, and is an earthwork structure formed through excavation or filling. The main function of a roadbed is to provide the necessary conditions for the laying of tracks or roads and the operation of trains or vehicles, and to bear the static and dynamic loads of tracks, locomotives, rolling stock, roads, and traffic loads, while transferring and dispersing the loads deep into the foundation.

[0003] A search revealed Chinese utility model patent CN212199966U, a road surface leveling device, which addresses the problems in existing technologies where the height of the entire device cannot be adjusted during use, and where the scraper plate cannot be guaranteed to move horizontally when the roadbed is uneven, thus affecting the leveling effect. The device includes: a main body; a first housing fixedly installed on the front side of the main body; a support shaft fixedly disposed at the center of the front side of the first housing; a second housing, rotatably connected to the front side of the support shaft at its rear center; a leveling instrument fixedly disposed at the top of the second housing; a deflection mechanism disposed within the cavity of the first housing; and an adjustment mechanism disposed within the cavity of the second housing. This road surface leveling device allows it to be used on roads of different heights, and ensures that the scraper plate can move horizontally when the roadbed is uneven, thereby improving the leveling effect.

[0004] However, the scraper plate of the patent is a straight structure. When the scraper plate moves, the soil on both sides is easy to accumulate and form a "ridge" bulge. This causes the soil to accumulate again in the area after scraping, forming a certain height of soil, which requires repeated scraping. In view of this, this application proposes an adjustable roadbed and pavement leveling device based on the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an adjustable roadbed and pavement leveling device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adjustable roadbed and pavement leveling device includes a vehicle body, a push bucket at the front end of the vehicle body, an adjustment component for adjusting the angle of the push bucket between the push bucket and the vehicle body, a pressing component for pressing the road surface at the rear end of the vehicle body, and a scraper fixedly installed inside the push bucket.

[0008] The scraper consists of a straight section and an inclined section. The number of inclined sections is set to two, and the two inclined sections are symmetrically arranged at both ends of the straight section. The inclined sections are inclined towards the inside of the straight section, and a receiving cavity is formed between the scraper and the two side walls of the push bucket.

[0009] Furthermore, the adjustment assembly includes a first rotating assembly and a second rotating assembly. The first rotating assembly includes two first hydraulic rods. An extension plate is fixedly installed at one end of the vehicle body. Two symmetrical connecting blocks are fixedly installed at one end of the extension plate. The first hydraulic rods are rotatably connected to the connecting blocks. A connecting plate is fixedly installed on the back of the push bucket. The output end of the first hydraulic rod is rotatably connected to the connecting plate. Two symmetrical fixing plates are rotatably installed at one end of the vehicle body. A first connector is fixedly installed at one end of the fixing plate. Two second connectors are fixedly installed on the back of the push bucket. A cross connecting shaft is rotatably installed between the first connector and the second connector.

[0010] Furthermore, the second rotating assembly includes a support rod fixedly installed at the front end of the vehicle body, one end of which is rotatably connected to a second hydraulic rod, and a hinge joint is fixedly installed on the back of the push bucket, with the output end of the second hydraulic rod rotatably connected to the hinge joint.

[0011] Furthermore, the clamping assembly includes a clamping roller, and a U-shaped frame is fixedly installed at the rear end of the vehicle body, with the clamping roller rotatably installed between the inner walls of the U-shaped frame.

[0012] Furthermore, a connecting seat is fixedly installed on the upper surface of the fixed plate, and two symmetrical card seats are fixedly installed on the back of the push bucket. A hydraulic telescopic rod is rotatably installed between the connecting seat and the card seats.

[0013] Furthermore, a scraper is provided on the side of the pressing roller near the vehicle body, and the scraper has a curved surface, which contacts the surface of the pressing roller.

[0014] Furthermore, a blade holder is provided on the lower surface of the scraper, and a slot is provided on the blade holder. The bottom end of the scraper is inserted into the slot. Several bolts are spirally installed between the blade holder and the scraper. Connecting rods are fixedly installed at both ends of the blade holder. Connecting sleeves are fixedly installed on both sides of the U-shaped frame. A lifting rod is slidably installed inside the connecting sleeve. The lifting rod is fixedly connected to the connecting rod. A limit block is fixedly installed at the top of the lifting rod. A spring is fixedly installed between the limit block and the connecting sleeve.

[0015] Furthermore, a separation sieve plate is fixedly installed on the upper surface of the push bucket.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This utility model, by setting up a push bucket and a scraper, allows the vehicle body to drive the push bucket and scraper to level the soil as it moves forward. When the scraper moves forward, the two inclined sections can guide excess soil from both sides to the straight section in the middle, preventing excess soil from spreading onto the already leveled road surface. With the continuous advancement of the straight section and the inclined section, the soil is evenly and evenly laid on the roadbed or road surface, ensuring the flatness and uniformity of the road surface. At the same time, as the volume of soil concentrated in the straight section increases, the cavity formed by the scraper and the push bucket can temporarily provide space for this soil, preventing it from spreading to both sides of the push bucket before the scraper has leveled the soil. The push bucket also provides a certain degree of support for the scraper, making the scraper more stable and less prone to shaking when leveling the soil.

[0018] 2. This utility model, by setting an adjustment component, activates the first hydraulic rod, which drives the push bucket and scraper to rotate, thereby changing the longitudinal angle between the scraper and the ground. When a thicker soil layer needs to be laid, the longitudinal angle between the scraper and the ground can be appropriately reduced to achieve the expected laying thickness; while when a thinner soil layer needs to be laid, the longitudinal angle between the scraper and the ground can be increased, so that the soil is subjected to greater pressure during the leveling process, thereby achieving a more compact laying effect. During construction, there is often a need to level the soil in a specific direction. At this time, the second hydraulic rod is activated, which drives the push bucket and scraper to rotate left and right. When the scraper moves forward, it is in an inclined state, which allows the soil to be transported along the bottom of the inclined surface.

[0019] 3. This utility model, by setting up a clamping component and a spring, allows the clamping roller to press the road surface after it is leveled, while also eliminating wheel marks on the road surface. The clamping roller rotates clockwise as the vehicle moves forward, and the curved surface of the scraper contacts the surface of the clamping roller, thereby removing the dirt adhering to its surface. When the scraper encounters excessive resistance, it will drive the scraper holder and lifting rod to descend, compressing the spring, thus avoiding rigid contact between the scraper and hard objects and effectively reducing the frequency of scraper replacement. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an adjustable roadbed and pavement leveling device proposed in this utility model.

[0021] Figure 2 This is a front view schematic diagram of an adjustable roadbed and pavement leveling device proposed in this utility model;

[0022] Figure 3 A schematic diagram of the installation of the scraper on the push bucket for an adjustable roadbed and pavement leveling device proposed in this utility model.

[0023] Figure 4 A schematic diagram of a scraper for an adjustable roadbed and pavement leveling device proposed in this utility model;

[0024] Figure 5 This is a schematic diagram of the adjustment component of an adjustable roadbed and pavement leveling device proposed in this utility model.

[0025] Figure 6 A schematic diagram of the back of the pusher of an adjustable roadbed and pavement leveling device proposed in this utility model;

[0026] Figure 7 This is a schematic diagram of the clamping component of an adjustable roadbed and pavement leveling device proposed in this utility model;

[0027] Figure 8 A schematic diagram of the pressure roller of an adjustable roadbed and pavement leveling device proposed in this utility model;

[0028] Figure 9 This is a schematic diagram of a scraper for an adjustable roadbed and pavement leveling device proposed in this utility model.

[0029] In the diagram: 1. Vehicle body; 2. Push bucket; 3. Adjustment assembly; 4. Pressing assembly; 5. Scraper; 6. Straight section; 7. Inclined section; 8. Receiving cavity; 9. First rotating assembly; 10. Second rotating assembly; 11. First hydraulic rod; 12. Extension plate; 13. Connecting block; 14. Connecting plate; 15. Fixing plate; 16. First connector; 17. Second connector; 18. Cross connecting shaft; 19. Support rod; 20. Second hydraulic rod; 21. Hinge joint; 22. Pressing roller; 23. U-shaped frame; 24. Connecting seat; 25. Card seat; 26. Hydraulic telescopic rod; 27. Scraper; 28. Curved surface; 29. ​​Blade holder; 30. Bolt; 31. Connecting rod; 32. Connecting sleeve; 33. Lifting rod; 34. Limiting block; 35. Spring; 36. Separating screen plate. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Reference Figure 1-4 An adjustable roadbed and pavement leveling device includes a vehicle body 1, a push bucket 2 is provided at the front end of the vehicle body 1, an adjustment component 3 for adjusting the angle of the push bucket 2 is provided between the push bucket 2 and the vehicle body 1, a pressing component 4 for pressing the road surface is provided at the rear end of the vehicle body 1, and a scraper 5 is fixedly installed inside the push bucket 2.

[0032] The scraper 5 is composed of a straight part 6 and an inclined part 7. The number of inclined parts 7 is set to two. The two inclined parts 7 are symmetrically arranged at both ends of the straight part 6. The inclined parts 7 are inclined towards the inside of the straight part 6. A receiving cavity 8 is formed between the scraper 5 and the two side walls of the push bucket 2.

[0033] As the vehicle body 1 moves forward, it drives the push bucket 2 and scraper 5 to level the soil. When the scraper 5 moves forward, the two inclined sections 7 can guide the excess soil on both sides to the straight section 6 in the middle position, preventing the excess soil from spreading to the already leveled road surface. With the continuous advancement of the straight section 6 and the inclined section 7, the soil is evenly and evenly laid on the roadbed or road surface, ensuring the flatness and uniformity of the road surface. At the same time, as the volume of the soil concentrated in the straight section 6 increases, the cavity 8 formed by the scraper 5 and the push bucket 2 can temporarily provide space for this soil, preventing it from spreading to both sides of the push bucket 2 before the scraper 5 has leveled the soil. The push bucket 2 also provides a certain degree of support for the scraper 5, making the scraper 5 more stable and less prone to shaking when leveling the soil.

[0034] Reference Figure 1-2 , Figure 5-6 Specifically: the adjustment assembly 3 includes a first rotating assembly 9 and a second rotating assembly 10. The first rotating assembly 9 includes two first hydraulic rods 11. An extension plate 12 is fixedly installed at one end of the vehicle body 1. Two symmetrical connecting blocks 13 are fixedly installed at one end of the extension plate 12. The first hydraulic rods 11 are rotatably connected to the connecting blocks 13. A connecting plate 14 is fixedly installed on the back of the push bucket 2. The output end of the first hydraulic rod 11 is rotatably connected to the connecting plate 14. Two symmetrical fixing plates 15 are rotatably installed at one end of the vehicle body 1. A first connector 16 is fixedly installed at one end of the fixing plate 15. Two second connectors 17 are fixedly installed on the back of the push bucket 2. A cross connecting shaft 18 is rotatably installed between the first connector 16 and the second connector 17.

[0035] To control the thickness of the soil leveling, the first hydraulic rod 11 is activated. The first hydraulic rod 11 drives the push bucket 2 and the scraper 5 to rotate, thereby changing the longitudinal angle between the scraper 5 and the ground. When a thicker soil layer needs to be laid, the longitudinal angle between the scraper 5 and the ground can be appropriately reduced to achieve the expected laying thickness. When a thinner soil layer needs to be laid, the longitudinal angle between the scraper 5 and the ground can be increased, so that the soil is subjected to greater pressure during the leveling process, thereby achieving a more compact laying effect.

[0036] Reference Figure 1-2 , Figure 5-6Specifically: the second rotating assembly 10 includes a support rod 19 fixedly installed at the front end of the vehicle body 1, one end of the support rod 19 is rotatably connected to a second hydraulic rod 20, and a hinge joint 21 is fixedly installed on the back of the push bucket 2, and the output end of the second hydraulic rod 20 is rotatably connected to the hinge joint 21.

[0037] During construction, there is often a need to level the soil in a specific direction. At this time, the second hydraulic rod 20 is activated, which drives the push bucket 2 and scraper 5 to rotate left and right. When the scraper 5 moves forward, it is in an inclined state, so that the soil can be transported along the bottom of the inclined surface. The hydraulic telescopic rod 26 supports the push bucket 2 and scraper 5 when leveling the road surface, and at the same time, it can also adapt to the left and right swing and up and down swing of the scraper 5 in conjunction with the fixed plate 15.

[0038] Reference Figure 1-2 , Figure 7 Specifically: the pressing assembly 4 includes a pressing roller 22, and a U-shaped frame 23 is fixedly installed at the rear end of the vehicle body 1. The pressing roller 22 is rotatably installed between the inner walls of the U-shaped frame 23. After the road surface is leveled, the pressing roller 22 immediately presses the road surface, and at the same time, it can eliminate the tire marks on the road surface.

[0039] Reference Figure 2 , Figure 6 Specifically: a connecting seat 24 is fixedly installed on the upper surface of the fixed plate 15, and two symmetrical card seats 25 are fixedly installed on the back of the push bucket 2. A hydraulic telescopic rod 26 is rotatably installed between the connecting seat 24 and the card seats 25.

[0040] Reference Figure 8-9 Specifically: a scraper 27 is provided on the side of the pressing roller 22 near the vehicle body 1, and a curved surface 28 is provided on the scraper 27. The scraper 27 contacts the surface of the pressing roller 22 through the curved surface 28.

[0041] Reference Figure 7 Specifically: a blade holder 29 is provided on the lower surface of the scraper 27, and a slot is provided on the blade holder 29. The bottom end of the scraper 27 is inserted into the slot. Several bolts 30 are spirally installed between the blade holder 29 and the scraper 27. Connecting rods 31 are fixedly installed at both ends of the blade holder 29. Connecting sleeves 32 are fixedly installed on both sides of the U-shaped frame 23. A lifting rod 33 is slidably installed inside the connecting sleeve 32. The lifting rod 33 is fixedly connected to the connecting rod 31. A limit block 34 is fixedly installed at the top of the lifting rod 33. A spring 35 is fixedly installed between the limit block 34 and the connecting sleeve 32.

[0042] As the vehicle body 1 moves forward, the pressure roller 22 rotates clockwise. The curved surface 28 of the scraper 27 contacts the surface of the pressure roller 22, thereby removing the dirt adhering to its surface. When the scraper 27 encounters excessive resistance, it will cause the scraper holder 29 and the lifting rod 33 to descend, compressing the spring 35. This prevents the scraper 27 from making rigid contact with hard objects, effectively reducing the number of times the scraper 27 needs to be replaced.

[0043] Reference Figure 1 , Figure 3 Specifically: A separation screen plate 36 is fixedly installed on the upper surface of the push bucket 2. During the forward movement of the push bucket 2 and the scraper 5, some soil may be concentrated in the middle and upper part of the scraper 5. Under the pushing action, the soil comes into contact with the separation screen plate 36, and the separation screen plate 36 disperses the soil in the aggregated state into smaller soil clods, which is convenient for subsequent compaction by the pressing roller 22.

[0044] Working principle: As the vehicle body 1 moves forward, it drives the push bucket 2 and scraper 5 to level the soil. When the scraper 5 moves forward, the two inclined parts 7 can guide the excess soil on both sides to the straight part 6 in the middle position, so as to prevent the excess soil from spreading to the leveled road surface. With the continuous advancement of the straight part 6 and the inclined part 7, the soil is evenly and evenly laid on the roadbed or road surface, ensuring the flatness and uniformity of the road surface. At the same time, as the volume of the soil concentrated in the straight part 6 increases, the cavity 8 formed by the scraper 5 and the push bucket 2 can temporarily provide space for this soil, preventing it from spreading to both sides of the push bucket 2 before the scraper 5 has leveled the soil. The push bucket 2 also provides a certain support for the scraper 5, making the scraper 5 more stable and less prone to shaking when leveling the soil.

[0045] To control the thickness of the soil leveling, the first hydraulic rod 11 is activated. The first hydraulic rod 11 drives the push bucket 2 and the scraper 5 to rotate, thereby changing the longitudinal angle between the scraper 5 and the ground. When a thicker soil layer needs to be laid, the longitudinal angle between the scraper 5 and the ground can be appropriately reduced to achieve the expected laying thickness; while when a thinner soil layer needs to be laid, the longitudinal angle between the scraper 5 and the ground can be increased, so that the soil is subjected to greater pressure during the leveling process, thereby obtaining a more compact laying effect.

[0046] During construction, there is often a need to level the soil in a specific direction. At this time, the second hydraulic rod 20 is activated, which drives the push bucket 2 and scraper 5 to rotate left and right. When the scraper 5 moves forward, it is in an inclined state, so that the soil can be transported along the bottom of the inclined surface. The hydraulic telescopic rod 26 supports the push bucket 2 and scraper 5 when leveling the road surface, and at the same time, it can also adapt to the left and right swing and up and down swing of the scraper 5 in conjunction with the fixed plate 15.

[0047] After the road surface is leveled, the pressing roller 22 immediately presses the road surface and eliminates the tire marks on the road surface. The pressing roller 22 rotates clockwise as the vehicle body 1 moves forward. The curved surface 28 of the scraper 27 contacts the surface of the pressing roller 22, thereby removing the dirt adhering to its surface. When the scraper 27 encounters too much resistance, the scraper 27 will drive the blade holder 29 and the lifting rod 33 to descend, and the spring 35 will be compressed, thereby avoiding rigid contact between the scraper 27 and hard objects and effectively reducing the number of times the scraper 27 needs to be replaced.

[0048] During the forward movement of the push bucket 2 and scraper 5, some soil may be concentrated in the upper middle part of the scraper 5. Under the pushing action, the soil comes into contact with the separating screen plate 36. The separating screen plate 36 disperses the soil in the aggregated state into smaller soil clods, which facilitates the subsequent compaction by the pressing roller 22.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0050] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent 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. Therefore, they should not be construed as limitations on this patent.

Claims

1. An adjustable roadbed surfacing device characterized by, Includes a vehicle body (1), a push bucket (2) is provided at the front end of the vehicle body (1), an adjustment component (3) for adjusting the angle of the push bucket (2) is provided between the push bucket (2) and the vehicle body (1), a pressing component (4) for pressing the road surface is provided at the rear end of the vehicle body (1), and a scraper (5) is fixedly installed inside the push bucket (2). The scraper (5) is composed of a straight part (6) and an inclined part (7). The number of inclined parts (7) is set to two. The two inclined parts (7) are symmetrically arranged at both ends of the straight part (6). The inclined parts (7) are inclined towards the inside of the straight part (6). A receiving cavity (8) is formed between the scraper (5) and the two side walls of the push bucket (2).

2. An adjustable roadbed surfacing device according to claim 1, wherein The adjustment assembly (3) includes a first rotating assembly (9) and a second rotating assembly (10). The first rotating assembly (9) includes two first hydraulic rods (11). An extension plate (12) is fixedly installed at one end of the vehicle body (1). Two symmetrical connecting blocks (13) are fixedly installed at one end of the extension plate (12). The first hydraulic rods (11) are rotatably connected to the connecting blocks (13). A connecting plate (14) is fixedly installed on the back of the push bucket (2). The output end of the first hydraulic rods (11) is rotatably connected to the connecting plate (14). Two symmetrical fixing plates (15) are rotatably installed at one end of the vehicle body (1). A first connector (16) is fixedly installed at one end of the fixing plate (15). Two second connectors (17) are fixedly installed on the back of the push bucket (2). A cross connecting shaft (18) is rotatably installed between the first connector (16) and the second connector (17).

3. The adjustable roadbed and pavement leveling device according to claim 2, characterized in that, The second rotating assembly (10) includes a support rod (19) fixedly installed at the front end of the vehicle body (1). One end of the support rod (19) is rotatably connected to a second hydraulic rod (20). A hinge joint (21) is fixedly installed on the back of the push bucket (2). The output end of the second hydraulic rod (20) is rotatably connected to the hinge joint (21).

4. The adjustable roadbed and pavement leveling device according to claim 1, characterized in that, The pressing assembly (4) includes a pressing roller (22), and a U-shaped frame (23) is fixedly installed at the rear end of the vehicle body (1). The pressing roller (22) is rotatably installed between the inner walls of the U-shaped frame (23).

5. An adjustable roadbed and pavement leveling device according to claim 2, characterized in that, A connecting seat (24) is fixedly installed on the upper surface of the fixed plate (15), and two symmetrical card seats (25) are fixedly installed on the back of the push bucket (2). A hydraulic telescopic rod (26) is rotatably installed between the connecting seat (24) and the card seats (25).

6. An adjustable roadbed and pavement leveling device according to claim 4, characterized in that, The pressure roller (22) is provided with a scraper (27) on the side near the vehicle body (1). The scraper (27) is provided with a curved surface (28), and the scraper (27) contacts the surface of the pressure roller (22) through the curved surface (28).

7. An adjustable roadbed surfacing device according to claim 6, wherein, The scraper (27) has a blade holder (29) on its lower surface. The blade holder (29) has a slot. The bottom end of the scraper (27) is inserted into the slot. Several bolts (30) are spirally installed between the blade holder (29) and the scraper (27). Connecting rods (31) are fixedly installed at both ends of the blade holder (29). Connecting sleeves (32) are fixedly installed on both sides of the U-shaped frame (23). A lifting rod (33) is slidably installed inside the connecting sleeve (32). The lifting rod (33) is fixedly connected to the connecting rod (31). A limit block (34) is fixedly installed at the top of the lifting rod (33). A spring (35) is fixedly installed between the limit block (34) and the connecting sleeve (32).

8. An adjustable road bed surfacing device according to claim 1 wherein, A separation sieve plate (36) is fixedly installed on the upper surface of the push bucket (2).

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