Leveling device for asphalt pavement construction

Abstract

The utility model relates to the technical field of asphalt pavement construction, and provides a leveling device for asphalt pavement construction, which comprises a vehicle body, an operating rod is hinged to one side of the vehicle body, handles are fixedly connected to two ends of one side of the operating rod, leveling rollers are rotatably connected to two sides of the bottom end of the vehicle body, and a turning component comprises a fixed box. The fixing box is fixedly connected to the middle position of the bottom end of the vehicle body, an air cylinder is fixedly connected to the inner top wall of the fixing box, a sliding seat is fixedly connected to the output end of the air cylinder, and a supporting disc extending into the fixing box is rotationally connected to the bottom end of the sliding seat. The air cylinder is started to drive the sliding seat to descend to be tightly attached to the asphalt pavement, the vehicle body ascends by a certain height, then a worker can rapidly rotate the vehicle body through the operating rod to turn around, the complexity and inconvenience of turning around a flat pavement on a narrow pavement are avoided, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt pavement construction, in particular to a leveling device for asphalt pavement construction. Background Art

[0002] Asphalt pavement refers to various types of pavement paved with road asphalt materials mixed into mineral materials. It is the most widely used high-grade pavement in road construction. During the construction of asphalt pavement, corresponding leveling rollers are needed to level the road surface. When leveling some narrow roads, large rollers cannot enter, so small hand-push leveling devices must be used for leveling construction.

[0003] After searching, the existing patent (Announcement No.: CN210458872U) discloses a leveling device for asphalt pavement construction, including a cart, a handle is fixedly welded at one end of the cart, and a push shovel is arranged at the other end of the cart through a lifting mechanism, the lifting mechanism includes two parallel T-slots opened on the side wall of the cart, a T-block is clamped in the T-slot, one end of the T-block is fixedly welded to the push shovel, a connecting expansion plate is fixedly welded to the top of the push shovel, a cable buckle is fixedly installed at the top of the connecting expansion plate, a cable is fixedly connected to the cable buckle, and the cable is connected to the winding mechanism through a pulley, and the winding mechanism includes two parallel support plates fixedly welded to the top of the cart. By setting a push shovel, the raised part of the road surface can be flattened, and a compacting mechanism is arranged in the cart, which can continuously beat the asphalt pavement through a flat plate until the asphalt pavement is more flat and compacted, which is highly practical and suitable for promotion.

[0004] However, in the above scheme, it is inconvenient to turn around on the spot. When leveling the road surface, some narrow roads are narrow, so it is inconvenient to quickly turn the leveling device around after leveling to the end of the road surface. Instead, the leveling operation is directly pulled back. Because the staff work with their backs leaning back, they cannot observe in time, which can easily cause certain safety hazards and is not conducive to the rapid leveling operation of narrow roads.

[0005] In view of this, the utility model provides a leveling device for asphalt pavement construction. Utility Model Content

[0006] The utility model provides a leveling device for asphalt pavement construction, which solves the problem of inconvenience of turning around on the spot in the related technology.

[0007] The technical solution of the utility model is as follows: a leveling device for asphalt pavement construction, comprising a vehicle body, an operating lever hinged on one side of the vehicle body, handles fixedly connected to both ends of one side of the operating lever, an anti-collision component is provided on the other side of the vehicle body, a U-turn component is provided at the middle position of the bottom end of the vehicle body, and leveling rollers are rotatably connected to both sides of the bottom end of the vehicle body.

[0008] The U-turn assembly includes a fixed box, which is fixedly connected to the middle position of the bottom end of the vehicle body, and the inner top wall of the fixed box is fixedly connected to a cylinder, and the output end of the cylinder is fixedly connected to a sliding seat, and the bottom end of the sliding seat is rotatably connected to a support plate extending to the inside of the fixed box. By starting the cylinder, the sliding seat is driven to descend and close to the asphalt road surface, and the vehicle body is raised to a certain height. After that, the staff can quickly rotate the vehicle body through the operating lever to realize U-turn, avoiding the cumbersome and inconvenient U-turn on a narrow road surface to level the road surface.

[0009] Preferably, a slide groove is provided on the inner wall of the fixed box, and slide plates that slide in cooperation with the inside of the slide groove are fixedly connected to both sides of the sliding seat, so that the sliding seat can slide up and down more smoothly.

[0010] Preferably, the anti-collision component includes a fixed groove, the fixed groove is evenly spaced with an upper end on one side of the interior of the vehicle body, a brake switch is fixedly connected to the middle position of the inner wall of the fixed groove, the upper and lower ends of the inner wall of the fixed groove are fixedly connected to a damper, and one side of the damper is fixedly connected to a sliding plate extending to the outside of the vehicle body, a buffer spring is wound around the damper surface on one side of the sliding plate, and one end of the buffer spring is fixedly connected to the inner wall of the fixed groove, and one side of the sliding plate is fixedly connected to an anti-collision plate. When the vehicle body is unable to brake in time due to inertia and accidentally collides with other road construction machinery, the buffer spring can be used to absorb excessive collision impact energy, and then the damper can be used to consume the elastic potential energy absorbed by the buffer spring, thereby realizing buffering and anti-collision of the vehicle body. At the same time, when the sliding plate moves excessively, it will touch the brake switch, thereby realizing automatic emergency braking, avoiding collision hazards caused by negligence of the staff and failure to brake in time.

[0011] Preferably, one side of the anti-collision plate is fixedly connected with rubber pads at equal intervals, and one side of the rubber pads is arc-shaped, which can initially absorb a part of the collision kinetic energy.

[0012] Preferably, the shape of the sliding plate in the top view is inverted convex, and one side of the sliding plate and one side of the anti-collision plate are welded into an integrated structure, ensuring the tight and firm connection between the sliding plate and the anti-collision plate, thereby facilitating the anti-collision plate to move more smoothly when it is hit.

[0013] Preferably, a limiting groove is provided on the inner wall of the fixing groove, and limiting blocks slidably matched with the inside of the limiting groove are fixedly connected to both ends of one side of the sliding plate, so that the sliding plate can slide more smoothly.

[0014] Preferably, the surface of the handle is provided with anti-skid patterns at equal intervals, and the shape of the anti-skid patterns in a side view is O-shaped, thereby increasing the contact friction between the operator's hand and the handle surface, thereby improving the stability of the handheld push operating rod.

[0015] Preferably, a fixing plate is fixedly connected to the lower end of one side of the vehicle body, and a card slot is opened at the bottom end of one side inside the fixing plate, a push plate is movably connected to the bottom end of one side of the fixing plate, and a card plate is fixedly connected to the top end of the push plate, and the push plate is used to push and scrape the raised asphalt on the road surface to facilitate the subsequent leveling action of the leveling roller on the asphalt road surface.

[0016] Preferably, a sliding structure is formed between the card plate and the inside of the card slot, and the shape of the card slot and the card plate in the side view is an inverted convex shape, which improves the stability of the sliding installation between the push plate and the fixed plate.

[0017] Preferably, the lower end of one side of the fixing plate is movably connected with fixing bolts at equal intervals, and the upper end of one side of the inner part of the card plate is provided with bolt holes threadedly matched with the fixing bolts at equal intervals, thereby ensuring the firmness and stability of the sliding installation of the card plate and the inner part of the card slot.

[0018] The working principle and beneficial effects of the utility model are:

[0019] 1. The U-turn assembly provided in the utility model can start the cylinder to drive the sliding seat down to close to the asphalt road surface when the vehicle needs to turn around, and make the vehicle rise to a certain height. Then the staff can quickly rotate the vehicle body through the operating lever to realize the U-turn, avoiding the cumbersome and inconvenient U-turn and leveling the road surface on a narrow road surface, improving the U-turn rate of the vehicle body, reducing the corresponding U-turn difficulty, and making it easier for the staff to level the narrow asphalt road surface, thereby improving its practicality, thereby realizing the function of facilitating U-turn on the spot;

[0020] 2. In the utility model, by setting up the anti-collision component, when the vehicle body is unable to brake in time due to inertia and accidentally collides with other road construction machinery, the rubber pad will first contact with it, and use its elastic deformation to absorb a part of the collision kinetic energy, and the excessive kinetic energy will cause the anti-collision plate to move and drive the sliding plate to slide to compress the buffer spring and damper, so as to achieve the buffering and anti-collision of the vehicle body. At the same time, when the sliding plate moves excessively, it will touch the brake switch, and then automatic emergency braking can be realized, avoiding collision hazards caused by negligence of the staff and failure to brake in time, improving the anti-collision effect of the vehicle body, avoiding the safety hazards of accidental collision, and improving its practicality, so as to achieve the effect of facilitating buffering and anti-collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the overall partial cross-sectional structure of the utility model;

[0024] Figure 3It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0025] Figure 4 It is a schematic diagram of a partial cross-sectional structure of the anti-collision component of the utility model;

[0026] Figure 5 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0027] In the figure: 1. handle; 2. anti-skid pattern; 3. operating lever; 4. vehicle body; 5. leveling roller; 6. U-turn assembly; 601. support plate; 602. fixed box; 603. cylinder; 604. sliding seat; 605. slide plate; 606. slide groove; 7. push plate; 8. fixed plate; 9. anti-collision assembly; 901. rubber pad; 902. anti-collision plate; 903. sliding plate; 904. buffer spring; 905. damper; 906. brake switch; 907. fixed groove; 908. limit block; 909. limit groove; 10. clamping slot; 11. clamping plate; 12. fixing bolt; 13. bolt hole. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1

[0030] The preferred embodiment of the asphalt pavement construction leveling device provided by the utility model is as follows Figures 1 to 5 As shown: A leveling device for asphalt pavement construction, including a body 4, an operating rod 3 is hinged on one side of the body 4, handles 1 are fixedly connected to both ends of one side of the operating rod 3, an anti-collision component 9 is arranged on the other side of the body 4, a U-turn component 6 is arranged at the middle position of the bottom end of the body 4, and leveling rollers 5 are rotatably connected to both sides of the bottom end of the body 4.

[0031] The U-turn assembly 6 includes a fixed box 602, which is fixedly connected to the middle position of the bottom end of the vehicle body 4. The inner top wall of the fixed box 602 is fixedly connected to a cylinder 603. The output end of the cylinder 603 is fixedly connected to a sliding seat 604. The bottom end of the sliding seat 604 is rotatably connected to a support plate 601 extending to the inside of the fixed box 602. By starting the cylinder 603, the sliding seat 604 is driven to descend and close to the asphalt road surface, and the vehicle body 4 is raised to a certain height. After that, the staff can quickly rotate the vehicle body 4 through the operating lever 3 to realize a U-turn, avoiding the cumbersome and inconvenient U-turn on a narrow road surface to level the road surface.

[0032] In this embodiment, a slide groove 606 is provided on the inner wall of the fixed box 602, and slide plates 605 that slide with the inside of the slide groove 606 are fixedly connected on both sides of the sliding seat 604. The sliding of the slide plate 605 in the slide groove 606 makes the up and down sliding of the sliding seat 604 more stable.

[0033] Example 2

[0034] On the basis of Example 1, a preferred embodiment of the asphalt pavement construction leveling device provided by the utility model is as follows Figures 1 to 5 As shown: the anti-collision component 9 includes a fixed groove 907, and the fixed groove 907 is evenly spaced and opened at the upper end of one side of the interior of the vehicle body 4. A brake switch 906 is fixedly connected to the middle position of the inner wall of the fixed groove 907, and a damper 905 is fixedly connected to the upper and lower ends of the inner wall of the fixed groove 907, and one side of the damper 905 is fixedly connected to a sliding plate 903 extending to the outside of the vehicle body 4, and a buffer spring 904 is wound around the surface of the damper 905 on one side of the sliding plate 903, and one end of the buffer spring 904 is fixedly connected to the inner wall of the fixed groove 907, and an anti-collision plate 902 is fixedly connected to one side of the sliding plate 903, and the buffer spring 904 is used to absorb excessive collision energy, and then the damper 905 is used to consume the elastic potential energy absorbed by the buffer spring 904, thereby realizing buffering and anti-collision of the vehicle body 4, and at the same time, when the sliding plate 903 moves excessively, it will touch the brake switch 906, thereby realizing automatic emergency braking, avoiding collision hazards caused by negligence of the staff and failure to brake in time.

[0035] In this embodiment, rubber pads 901 are fixedly connected to one side of the anti-collision plate 902 at equal intervals, and one side of the rubber pad 901 is arc-shaped, and elastic deformation of the arc-shaped rubber pad 901 is used to absorb part of the collision kinetic energy.

[0036] In this embodiment, the shape of the sliding plate 903 in the top view is inverted convex, and one side of the sliding plate 903 and one side of the anti-collision plate 902 are welded into an integrated structure. The welding between the inverted convex sliding plate 903 and one side of the anti-collision plate 902 ensures the tightness and firmness of the connection between the two.

[0037] In this embodiment, a limiting groove 909 is provided on the inner wall of the fixed groove 907, and limiting blocks 908 that slide in cooperation with the inside of the limiting groove 909 are fixedly connected to both ends of one side of the sliding plate 903. The sliding of the limiting blocks 908 in the limiting groove 909 makes the sliding of the sliding plate 903 more stable.

[0038] Furthermore, the surface of the handle 1 is provided with anti-skid grooves 2 at equal intervals, and the shape of the anti-skid grooves 2 in a side view is O-shaped. By providing the O-shaped anti-skid grooves 2 at equal intervals, the contact friction between the operator's hand and the surface of the handle 1 can be increased.

[0039] Furthermore, a fixing plate 8 is fixedly connected to the lower end of one side of the vehicle body 4, and a card slot 10 is opened at the bottom end of one side of the fixing plate 8, a push plate 7 is movably connected to the bottom end of one side of the fixing plate 8, and a card plate 11 is fixedly connected to the top of the push plate 7. When the vehicle body 4 moves forward to level the road surface, the fixing plate 8 and the push plate 7 can be driven to move, and then the push plate 7 can be used to push and scrape the raised asphalt on the road surface, so as to facilitate the subsequent leveling roller 5 to level the asphalt road surface.

[0040] In this embodiment, a sliding structure is formed between the card plate 11 and the inside of the card slot 10, and the shape of the card slot 10 and the card plate 11 in the side view is inverted convex. The sliding of the inverted convex card plate 11 and the inside of the card slot 10 is utilized to improve the stability of the sliding installation between the push plate 7 and the fixed plate 8.

[0041] In this embodiment, the lower end of one side of the fixing plate 8 is movably connected with fixing bolts 12 at equal intervals, and the upper end of one side of the inner part of the clamping plate 11 is provided with bolt holes 13 threadedly matched with the fixing bolts 12 at equal intervals. The fixing bolts 12 are matched with the threads inside the bolt holes 13 to ensure the firmness and stability of the sliding installation of the clamping plate 11 and the inner part of the clamping slot 10.

[0042] The working principle and use process of the utility model are as follows: first, the staff member holds the handle 1, and then operates the push rod on the operating rod 3 to realize the forward or backward movement of the vehicle body 4. At the same time, the movement of the vehicle body 4 will drive the fixed plate 8 and the push plate 7 to move, and then the push plate 7 can be used to push and scrape the raised asphalt on the road surface, which is convenient for the subsequent rolling leveling roller 5 to level the asphalt road surface. When the push plate 7 is seriously worn, the fixing bolt 12 can be rotated by a tool such as a screwdriver until it is completely disengaged from the inside of the bolt hole 13, and then the push plate 7 is slid forcefully so that the clamping plate 11 is completely separated from the inside of the clamping slot 10, so as to realize the disassembly and maintenance of the push plate 7;

[0043] At the same time, when the vehicle body 4 needs to be turned around, the cylinder 603 can be started to drive the sliding seat 604 to descend, and the sliding plate 605 can be used to slide in the slide groove 606, so that the sliding seat 604 can be smoothly lowered to drive the support plate 601 to be close to the asphalt road surface, and the vehicle body 4 can be raised to a certain height. After that, the staff can quickly rotate the vehicle body 4 through the operating rod 3 to realize the U-turn, avoiding the cumbersome and inconvenient U-turn and leveling the road surface on a narrow road surface. When the U-turn is completed, the cylinder 603 is started to make the sliding seat 604 rise and drive the support plate 601 to rise until the leveling roller 5 is close to the asphalt road surface, and the leveling construction can be carried out again;

[0044] When the vehicle body 4 is unable to brake in time due to inertia and accidentally collides with other road construction machinery, the rubber pad 901 will first contact it and use its elastic deformation to absorb part of the collision kinetic energy. The excessive kinetic energy will cause the anti-collision plate 902 to move and drive the sliding plate 903 to slide and compress the buffer spring 904 and the damper 905, and then use the buffer spring 904 to absorb the excessive collision impact energy, and then use the damper 905 to consume the elastic potential energy absorbed by the buffer spring 904, thereby achieving buffering and anti-collision of the vehicle body 4. At the same time, when the sliding plate 903 moves excessively, it will touch the brake switch 906, thereby realizing automatic emergency braking, avoiding collision hazards caused by negligence of the staff and failure to brake in time.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A leveling device for asphalt pavement construction, comprising a vehicle body (4), characterized in that: An operating rod (3) is hingedly connected to one side of the vehicle body (4), and handles (1) are fixedly connected to both ends of one side of the operating rod (3). An anti-collision component (9) is arranged on the other side of the vehicle body (4), and a U-turn component (6) is arranged at the middle position of the bottom end of the vehicle body (4). Both sides of the bottom end of the vehicle body (4) are rotatably connected to leveling rollers (5); The U-turn assembly (6) comprises a fixed box (602), the fixed box (602) being fixedly connected to the middle position of the bottom end of the vehicle body (4), the inner top wall of the fixed box (602) being fixedly connected to a cylinder (603), the output end of the cylinder (603) being fixedly connected to a sliding seat (604), and the bottom end of the sliding seat (604) being rotatably connected to a support plate (601) extending into the interior of the fixed box (602).

2. A leveling device for asphalt pavement construction according to claim 1, characterized in that: The inner wall of the fixed box (602) is provided with a sliding groove (606), and sliding plates (605) which are slidably matched with the inside of the sliding groove (606) are fixedly connected to both sides of the sliding seat (604).

3. The asphalt pavement leveling device according to claim 1, characterized in that: The anti-collision component (9) comprises a fixing groove (907), the fixing groove (907) being provided with an upper end on one side of the interior of the vehicle body (4) at equal intervals, a brake switch (906) being fixedly connected to the middle position of the inner wall of the fixing groove (907), a damper (905) being fixedly connected to the upper and lower ends of the inner wall of the fixing groove (907), and a sliding plate (903) extending to the outside of the vehicle body (4) being fixedly connected to one side of the damper (905), a buffer spring (904) being wound around the surface of the damper (905) on one side of the sliding plate (903), and one end of the buffer spring (904) being fixedly connected to the inner wall of the fixing groove (907), and an anti-collision plate (902) being fixedly connected to one side of the sliding plate (903).

4. The asphalt pavement construction leveling device according to claim 3, characterized in that: One side of the anti-collision plate (902) is fixedly connected with a rubber pad (901) at equal intervals, and one side of the rubber pad (901) is arc-shaped.

5. The asphalt pavement leveling device according to claim 3, characterized in that: The shape of the sliding plate (903) in a top view is an inverted convex shape, and one side of the sliding plate (903) and one side of the anti-collision plate (902) are welded into an integrated structure.

6. The asphalt pavement leveling device according to claim 3, characterized in that: The inner wall of the fixing groove (907) is provided with a limiting groove (909), and limiting blocks (908) that are slidably matched with the inside of the limiting groove (909) are fixedly connected to both ends of one side of the sliding plate (903).

7. The asphalt pavement leveling device according to claim 1, characterized in that: The surface of the handle (1) is provided with anti-slip grooves (2) at equal intervals, and the shape of the anti-slip grooves (2) in a side view is O-shaped.

8. The asphalt pavement leveling device according to claim 1, characterized in that: A fixing plate (8) is fixedly connected to the lower end of one side of the vehicle body (4), and a clamping groove (10) is provided at the bottom end of one side of the fixing plate (8). A push plate (7) is movably connected to the bottom end of one side of the fixing plate (8), and a clamping plate (11) is fixedly connected to the top end of the push plate (7).

9. The asphalt pavement leveling device according to claim 8, characterized in that: A sliding structure is formed between the clamping plate (11) and the interior of the clamping slot (10), and the side view of the clamping slot (10) and the clamping plate (11) is inverted convex.

10. The asphalt pavement leveling device according to claim 8, characterized in that: The lower end of one side of the fixing plate (8) is movably connected with fixing bolts (12) at equal intervals, and the upper end of one side of the inner side of the clamping plate (11) is provided with bolt holes (13) threadedly matched with the fixing bolts (12) at equal intervals.

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