Concrete pavement leveling machine

Abstract

The utility model relates to the technical field of leveling machines, in particular to a concrete pavement leveling machine. The device comprises a body; the upper end of the machine body is provided with a grip, the lower end is rotatably connected with moving wheels, and the side wall is rotatably connected with a connecting rod; the other end of the connecting rod is connected with a first connecting block. The leveling plate is connected to the lower end of the first connecting block. And the extension assembly is arranged on the leveling plate and is used for extending the leveling plate. By starting the electric telescopic rod, the required number of extension plates are moved to the outer side of the leveling plate, so that the sliding seat drives the extension plates to fall until the lower ends of the extension plates are flush with the lower end of the leveling plate. And finally, the electric telescopic rod is started again, so that the telescopic end of the electric telescopic rod retracts, and the extension plates and the leveling plate are pressed tightly. Different numbers of extension plates can be freely selected to be combined with the leveling plate according to requirements, so that the length of the leveling plate can be adjusted more flexibly, the leveling machine can be flexibly suitable for various road surfaces with different widths, and the application range is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of leveling machines, in particular to a concrete pavement leveling machine. Background Art

[0002] Concrete pavement leveling machine is a special equipment used to level and surface treat concrete pavement during road construction. Its main functions include adjusting the elevation, slope and cross section of the concrete pavement to ensure that the road surface is flat and uniform and meets the design requirements.

[0003] A Chinese patent document with authorization announcement number CN220133531U proposes a concrete leveling device for concrete pouring, including a flat plate, a vibration component, a handle, a guide rail, a guide rod and a side panel, etc.; a vibration component is installed on the flat plate, a handle is installed on the vibration component, guide rails are symmetrically installed on both sides of the flat plate, guide rods are installed on the guide rails, and side panels are slidably installed on the guide rods through sliding blocks.

[0004] However, in the above application, although the length of the flat plate can be adjusted, there are only two length selection modes: folding or opening the side panels, and the adaptability range is still small, and it cannot flexibly adapt to various road widths. Utility Model Content

[0005] In view of the problems existing in the background technology, a concrete pavement leveling machine is proposed.

[0006] The utility model provides a concrete pavement leveling machine, comprising a machine body; a handle is provided at the upper end of the machine body, a moving wheel is rotatably connected to the lower end of the machine body, and a connecting rod is rotatably connected to the side wall; the other end of the connecting rod is connected to a connecting block, a leveling plate connected to the lower end of the connecting block, and an extension component arranged on the leveling plate to extend the leveling plate.

[0007] Preferably, the extension assembly includes a plurality of extension plates movably arranged side by side above the screed plate; the upper ends of the plurality of extension plates are connected to a sliding seat; a through hole is opened at the side wall of the sliding seat, and the upper end is connected to a connecting column; the upper end of the connecting column is connected to a connecting plate; the upper end of the connecting block one is also connected to an electric telescopic rod; the telescopic end of the electric telescopic rod passes through a plurality of through holes, and is connected to the sliding seat for up and down sliding movement through the through holes, and a telescopic rod is also provided above the electric telescopic rod; the cylinder body of the electric telescopic rod is connected to the fixed end of the telescopic rod by a connecting block two, and the two are parallel; a cylinder is provided on the telescopic end of the telescopic rod; a limit plate is connected to the telescopic end of the cylinder; the limit plate and the plurality of connecting columns are all connected for up and down sliding movement.

[0008] Preferably, a limit block for limiting the sliding seat is connected to the telescopic end of the electric telescopic rod, and a slide groove corresponding to the sliding seat is also provided on the telescopic end of the electric telescopic rod; a protrusion slidably connected to the slide groove is provided in the through hole.

[0009] Preferably, the horizontal cross-sections of the sliding seat and the connecting plate are larger than the horizontal cross-section of the connecting column, so as to limit the position of the limiting plate.

[0010] Preferably, a plurality of springs for buffering the falling of the extension plate are connected to the lower end of the telescopic end of the telescopic rod; and the other ends of the springs are connected to the connecting plates in a one-to-one correspondence.

[0011] Preferably, two adjacent extension plates are in contact with each other.

[0012] Preferably, two groups of extension components are symmetrically arranged on the screed.

[0013] Preferably, a motor is disposed inside the machine body; a driving end of the motor penetrates the machine body and is connected to the connecting rod.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects:

[0015] The concrete road leveler starts the electric telescopic rod to move the required number of extension plates to the outside of the leveling plate, so that the sliding seat drives the extension plates to fall until the lower end of the extension plates is flush with the lower end of the leveling plate. Finally, the electric telescopic rod is started again to retract the telescopic end of the electric telescopic rod to press the multiple extension plates against the leveling plate. Different numbers of extension plates and leveling plates can be freely selected according to needs, so that the length of the leveling plate can be adjusted more flexibly, and the leveler can flexibly adapt to various road surfaces of different widths and has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the extension component of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the machine body and the screed plate of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the protrusion and the slide groove of the utility model.

[0020] Figure numerals: 1. body; 2. handle; 3. moving wheel; 4. connecting rod; 5. connecting block one; 6. leveling plate; 7. extension assembly; 71. extension plate; 72. sliding seat; 73. through hole; 74. connecting column; 75. connecting plate; 76. electric telescopic rod; 77. limit block; 78. connecting block two; 79. telescopic rod; 710. cylinder; 711. limit plate; 712. spring; 8. motor. DETAILED DESCRIPTION

[0021] Embodiment 1

[0022] like Figure 1-3 As shown, the utility model provides a concrete pavement leveling machine, comprising a machine body 1; a handle 2 is provided at the upper end of the machine body 1, a moving wheel 3 is rotatably connected to the lower end, and a connecting rod 4 is rotatably connected to the side wall; the other end of the connecting rod 4 is connected to a connecting block 5, a screed plate 6 is connected to the lower end of the connecting block 5, and an extension component 7 is arranged on the screed plate 6 to extend the screed plate 6.

[0023] By providing the extension component 7, the length of the screed plate 6 can be adjusted more flexibly, thereby enabling the screed machine to flexibly adapt to various road surfaces of different widths and having a wider range of applications.

[0024] Embodiment 2

[0025] like Figure 1-4As shown, a concrete pavement leveling machine proposed by the utility model, compared with the first embodiment, this embodiment also includes: the extension component 7 includes a plurality of extension plates 71 movably arranged side by side above the screed plate 6; the upper ends of the plurality of extension plates 71 are all connected to a sliding seat 72; a through hole 73 is opened at the side wall of the sliding seat 72, and a connecting column 74 is connected to the upper end; the upper end of the connecting column 74 is connected to a connecting plate 75; the upper end of the connecting block 1 5 is also connected to an electric telescopic rod 76; the telescopic end of the electric telescopic rod 76 passes through a plurality of through holes 73, and is connected to the sliding seat 72 for sliding up and down through the through holes 73, and a telescopic rod 79 is also provided above the electric telescopic rod 76; the cylinder body of the electric telescopic rod 76 and the fixed end of the telescopic rod 79 are connected by a connecting block 2 78, and the two are parallel; a cylinder 710 is provided on the telescopic end of the telescopic rod 79; a limit plate 711 is connected to the telescopic end of the cylinder 710; the limit plate 711 and the plurality of connecting columns 74 are all connected for sliding up and down. By setting the extension assembly 7, different numbers of extension plates 71 can be freely selected to be combined with the screed plate 6 according to the needs, so that the length adjustment of the screed plate 6 is more flexible, and the screed machine can flexibly adapt to various road surfaces of different widths. A limit block 77 for limiting the sliding seat 72 is connected to the telescopic end of the electric telescopic rod 76, and a slide groove corresponding to the sliding seat 72 is also provided on the telescopic end of the electric telescopic rod 76; a protrusion slidably connected to the slide groove is provided in the through hole 73. The sliding seat 72 can be limited to prevent the extension plate 71 from falling off the electric telescopic rod 76. The horizontal sections of the sliding seat 72 and the connecting plate 75 are both larger than the horizontal sections of the connecting column 74 to limit the limit plate 711. Prevent the limit plate 711 from falling off the connecting column 74, so that the extension plate 71 cannot be lifted and the extension plate 71 is reset. The lower end of the telescopic end of the telescopic rod 79 is connected to a plurality of springs 712 for buffering the fall of the extension plate 71; the other end of the spring 712 is connected to the connecting plate 75 in a one-to-one correspondence. The spring 712 will provide a buffer during the fall of the extension plate 71 to prevent the components in the extension assembly 7 from being hit and damaged. The two adjacent extension plates 71 fit each other. This prevents the concrete from squeezing out of the gap between the extension plates 71 during the leveling process, thereby affecting the leveling effect. Two groups of extension assemblies 7 are symmetrically arranged on the leveling plate 6. The machine body 1 can be placed in the middle of the whole leveling machine as much as possible to facilitate the maintenance of the balance of the leveling machine. A motor 8 is arranged inside the machine body 1; the driving end of the motor 8 passes through the machine body 1 and is connected to the connecting rod 4. The motor 8 can drive the leveling plate 6 to rotate, so that the leveling plate 6 can tilt with the slope of the road surface, so that the leveling plate 6 can always fit the road surface.

[0026] The working principle of the utility model is as follows: when it is necessary to extend the screed plate 6, the electric telescopic rod 76 is first started, and the telescopic end of the electric telescopic rod 76 is extended to drive the extension plate 71 and the sliding seat 72 to move toward the extension end of the screed plate 6, and then the required extension length is calculated according to the road width, and the required number of extension plates 71 are moved to the outside of the screed plate 6, so that the sliding seat 72 drives the extension plate 71 to fall along the slide groove opened on the telescopic end of the electric telescopic rod 76 until the lower end of the extension plate 71 is flush with the lower end of the screed plate 6. During this process, the spring 712 will provide a buffer to prevent the components in the extension assembly 7 from being damaged by impact. Finally, the electric telescopic rod 76 is started again to retract the telescopic end of the electric telescopic rod 76, and multiple extension plates 71 are pressed against the screed plate 6 to prevent concrete from squeezing out of the gap between the extension plate 71 and the screed plate 6 during the leveling process, which affects the leveling effect. A plurality of extension plates 71 are provided, and different numbers of extension plates 71 can be freely selected to be combined with the screed plate 6 according to the needs, so that the length adjustment of the screed plate 6 is more flexible, and thus the screed machine can flexibly adapt to various road surfaces of different widths, and has a wider range of applications. When it is necessary to reset the extension plate 71, the cylinder 710 is first started, and the telescopic end of the cylinder 710 retracts to drive the limit plate 711 to move upward, thereby driving the extension plate 71 to move upward, and then the electric telescopic rod 76 is started, and the telescopic end of the electric telescopic rod 76 retracts to drive the extension plate 71 to reset, thereby driving the extension assembly 7 to reset as a whole to wait for the next extension.

[0027] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A concrete pavement leveling machine, characterized in that: include A machine body (1); a handle (2) is provided at the upper end of the machine body (1); a moving wheel (3) is rotatably connected to the lower end; a connecting rod (4) is rotatably connected to the side wall; the other end of the connecting rod (4) is connected to a connecting block (5); A leveling plate (6) connected to the lower end of the connecting block 1 (5); and an extension assembly (7) arranged on the screed plate (6) for extending the screed plate (6); the extension assembly (7) comprises a plurality of extension plates (71) arranged side by side and movably arranged above the screed plate (6); the upper ends of the plurality of extension plates (71) are all connected to a sliding seat (72); a through hole (73) is provided on the side wall of the sliding seat (72), and a connecting column (74) is connected to the upper end; the upper end of the connecting column (74) is connected to a connecting plate (75); the upper end of the connecting block (5) is also connected to an electric telescopic rod (76); the electric telescopic rod (76) is The telescopic end passes through a plurality of through holes (73) and is connected to the sliding seat (72) by sliding up and down through the through holes (73); a telescopic rod (79) is also provided above the electric telescopic rod (76); a cylinder body of the electric telescopic rod (76) and a fixed end of the telescopic rod (79) are connected by a second connecting block (78), and the two are parallel; a cylinder (710) is provided on the telescopic end of the telescopic rod (79); a limit plate (711) is connected to the telescopic end of the cylinder (710); and the limit plate (711) and a plurality of connecting columns (74) are all connected by sliding up and down.

2. A concrete pavement leveling machine according to claim 1, characterized in that: A limit block (77) for limiting the position of the sliding seat (72) is connected to the telescopic end of the electric telescopic rod (76); a slide groove corresponding to the sliding seat (72) is also provided on the telescopic end of the electric telescopic rod (76); and a protrusion slidably connected to the slide groove is provided in the through hole (73).

3. A concrete pavement leveling machine according to claim 1, characterized in that: The horizontal cross-sections of the sliding seat (72) and the connecting plate (75) are both larger than the horizontal cross-section of the connecting column (74) so ​​as to limit the position of the limiting plate (711).

4. A concrete pavement leveling machine according to claim 1, characterized in that: The lower end of the telescopic end of the telescopic rod (79) is connected to a plurality of springs (712) for buffering the fall of the extension plate (71); the other end of the spring (712) is connected to the connecting plate (75) in a one-to-one correspondence.

5. A concrete pavement leveling machine according to claim 1, characterized in that: Two adjacent extension plates (71) are fitted to each other.

6. A concrete pavement leveling machine according to claim 1, characterized in that: Two groups of extension components (7) are symmetrically arranged on the screed plate (6).

7. A concrete pavement leveling machine according to claim 1, characterized in that: A motor (8) is arranged inside the machine body (1); a driving end of the motor (8) passes through the machine body (1) and is connected to the connecting rod (4).

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