Pavement coring device

Abstract

The utility model provides a road surface coring device which comprises a coring cylinder, a column rod is fixedly connected to the middle of the upper surface of the coring cylinder, a connecting disc is fixedly connected to the upper end of the column rod, a cylinder tool bit attached to the coring cylinder is arranged at the lower end of the coring cylinder, and a plurality of arc-shaped plates are evenly fixed to the face, facing the coring cylinder, of the cylinder tool bit. A plurality of arc-shaped grooves matched with the arc-shaped plates are annularly formed in the outer surface of the coring barrel at equal intervals, the upper end of the coring barrel is sleeved with a ring in sliding contact with the coring barrel, a plurality of supporting plates are annularly fixed to the outer surface of the ring at equal intervals, and connecting lugs are fixedly connected to the ends, away from the ring, of the supporting plates; the connecting lugs are fixedly connected with the connecting disc and the butt joint disc in the mode that the screws are matched with the nuts. The connecting structure has the advantages that the using amount of the screws and the nuts is reduced.

Description

Technical Field

[0001] The utility model relates to a road surface coring device, belonging to the field of highway engineering. Background Art

[0002] During the construction of highway projects, after the construction of the road surface is completed, sampling and testing are required, that is, coring is carried out on the road surface using a coring barrel with a barrel cutter head. The coring barrel is installed on the output shaft of the motor. When the motor drives the coring barrel to rotate, the barrel cutter head cuts the road surface, so that a part of the road surface enters the coring barrel. Since the barrel cutter head is in direct contact with the road surface, the barrel cutter head is greatly worn. In order to facilitate the replacement of the barrel cutter head separately, the barrel cutter head is connected to the coring barrel in an assembly manner. At present, the commonly used connection method between the barrel cutter head and the coring barrel is a screw and nut matching method. At the same time, the coring barrel also needs to be connected to the motor output shaft by a fastener formed by multiple sets of screws and nuts. This method requires more screws and nuts for assembly, and the use of screws and nuts is relatively large. Therefore, it is necessary to design a road coring device that reduces the use of screws and nuts. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a road coring device to solve the problems raised in the above background technology. The present invention reduces the usage of screws and nuts.

[0004] The top end of the support leg is fixed with a toothed plate, and the bottom end of the support leg is fixed with a toothed plate, and the toothed plate is fixed with a toothed plate on the toothed plate.

[0005] Furthermore, a small hole is provided on the upper surface of the connecting ear, and a plurality of lower circular holes are provided on the upper surface of the connecting plate, and the small holes are aligned with the lower circular holes. A plurality of upper circular holes aligned with the lower circular holes are provided in a circular shape and equidistantly on the upper surface of the docking plate, and a screw is inserted in the channel formed by the upper circular hole, the lower circular hole and the small hole, and a nut is threadedly connected to one end of the screw, and the nut is arranged on the side of the connecting ear away from the connecting plate.

[0006] Furthermore, a connecting column is connected and fixed to the middle position of the upper surface of the connecting plate, and a support plate for limiting the position of the screw head is connected and fixed to the end of the connecting column facing away from the connecting plate. The support plate is arranged between the connecting column and the docking plate, and a plurality of middle circular holes are equidistantly opened in a circular shape on the upper surface of the support plate, which are aligned with the upper circular hole and the lower circular hole, and the screw passes through the middle circular hole.

[0007] Furthermore, the support plate and the connecting ear are an integrally formed structure, and the support plate and the connecting ear are arranged perpendicular to each other.

[0008] Furthermore, a plurality of pins are fixed in a circular shape at equal intervals on the upper surface of the barrel cutter head, and the plurality of pins are alternately arranged with a plurality of arc-shaped plates. A plurality of sockets cooperating with the pins are opened in a circular shape at equal intervals on the lower surface of the core-taking barrel, and the pins are inserted into the sockets.

[0009] Furthermore, a plurality of ventilation holes are provided on the upper surface of the core barrel, and the plurality of ventilation holes are provided in a circular shape and equidistantly on the upper surface of the core barrel.

[0010] Beneficial effects of the utility model:

[0011] 1. The multiple arc plates on the barrel cutter head are respectively inserted into the multiple arc grooves on the core barrel, and the ring is set on the upper end of the core barrel, so that the small hole on the connecting ear is aligned with the lower circular hole on the connecting disk, and then the screw is sequentially passed through the channel formed by the upper circular hole, the lower circular hole and the small hole, and the nut is screwed on, so that the fastener formed by the screw and the nut limits the relative position of the docking disk and the connecting disk while limiting the relative position of the barrel cutter head and the core barrel. There is no need to use fasteners formed by multiple sets of screws and nuts to connect the docking disk and the connecting disk and then use fasteners formed by multiple sets of screws and nuts to limit the relative position of the barrel cutter head and the core barrel, which reduces the use of screws and nuts and improves assembly efficiency.

[0012] 2. A support plate for limiting the position of the screw head is set between the docking plate and the connecting plate, so that the screw passes through the middle round hole on the support plate. Under the support of the connecting column, there is a gap between the support plate and the connecting plate. Therefore, after the screw is installed, part of the screw rod is exposed. If the screw and nut cannot be disassembled normally due to rust later, the screw can be cut off by using the gap between the support plate and the connecting plate, so that the screw and nut can be smoothly disassembled without damaging other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a schematic structural diagram of a road coring device according to the present invention;

[0015] Figure 2 This is a schematic diagram of the assembly of a column, a support plate, a connecting plate and a coring barrel in a road coring device of the present utility model;

[0016] Figure 3 This is a schematic diagram of the assembly of a support plate, a connecting plate and a coring barrel in a road coring device of the present invention;

[0017] Figure 4 This is a schematic diagram of the assembly of the connecting ear, support plate, ring, curved plate and cylindrical cutter head in a road coring device of the utility model;

[0018] In the figure: 1-coring barrel, 2-barrel cutter head, 3-arc plate, 4-ring, 5-nut, 6-connecting plate, 7-support plate, 8-docking plate, 9-screw, 10-connecting shaft, 11-connecting ear, 12-support plate, 13-connecting column, 14-vent, 15-lower round hole, 16-middle round hole, 17-column rod, 18-arc groove, 19-jack, 20-column. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] See also Figure 1-Figure 4 The utility model provides a technical solution: a road coring device, including a coring barrel 1, the upper end of the coring barrel 1 is closed, a column 17 is connected and fixed to the middle position of the upper surface of the coring barrel 1, the upper end of the column 17 is connected and fixed to a connecting disk 6, a docking disk 8 arranged parallel to the connecting disk 6 is provided on the upper side of the connecting disk 6, a connecting shaft 10 for mounting on the output shaft of the motor is connected and fixed to the middle position of the upper surface of the docking disk 8, a barrel cutter head 2 is provided at the lower end of the coring barrel 1, wherein the barrel cutter head 2 is fixed to the upper end of the coring barrel 1. A plurality of plug posts 20 are fixed on the surface in a circular shape and at equal intervals. The plurality of plug posts 20 are alternately arranged with a plurality of arc-shaped plates 3. A plurality of insertion holes 19 that match the plug posts 20 are opened in a circular shape and at equal intervals on the lower surface of the core barrel 1. The plurality of plug posts 20 are respectively inserted into the plurality of insertion holes 19 to realize the connection between the core barrel 1 and the barrel cutter head 2, thereby improving the stability of the connection between the core barrel 1 and the barrel cutter head 2. By opening a plurality of ventilation holes 14 arranged in a circular shape and at equal intervals on the upper surface of the core barrel 1, it is convenient to discharge the air in the core barrel 1 during the coring process.

[0021] See Figure 1-Figure 4 The cam 12 is provided with a plurality of support plates 12 at equal intervals on the outer surface of the core tube 1, and the support plates 12 are connected and fixed with the support plates 12 at one end away from the support plates 12. The support plates 12 and the support plates 12 are connected and fixed with the support plates 12 at one end away from the support plates 12. The support plates 12 and the connection ears 11 are integrally formed and the support plates 12 and the connection ears 11 are arranged perpendicular to each other. The upper surface of the connection ears 11 is provided with a small hole, and the upper surface of the connecting disk 6 is provided with a plurality of lower circular holes 15, and the small holes are aligned with the lower circular holes 15. The upper surface of the docking disk 8 is provided with a plurality of upper circular holes aligned with the lower circular holes 15 at equal intervals. The nut 5 is screwed on the upper end of the core tube 1 so that the small hole on the connecting ear 11 is aligned with the lower circular hole 15 on the connecting disk 6. Then, the screw 9 is passed through the upper circular hole, the lower circular hole 15 and the channel formed by the small hole in sequence, and the nut 5 is screwed on. The fastener formed by the screw 9 and the nut 5 is used to limit the relative position of the docking disk 8 and the connecting disk 6 while limiting the relative position of the cutter head 2 and the core tube 1. There is no need to use multiple sets of fasteners formed by screws 9 and nuts 5 to connect the docking disk 8 and the connecting disk 6 and then use multiple sets of fasteners formed by screws 9 and nuts 5 to limit the relative position of the cutter head 2 and the core tube 1, which reduces the use of screws 9 and nuts 5 and improves assembly efficiency.

[0022] See Figure 1-Figure 4 8, and the screw 9 is inserted into the screw 9 and the nut 5 is screwed in place.

[0023] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A road coring device, comprising a coring barrel (1), characterized in that: The upper end of the core barrel (1) is closed, a column (17) is connected and fixed at the middle position of the upper surface of the core barrel (1), a connecting plate (6) is connected and fixed at the upper end of the column (17), a docking plate (8) arranged parallel to the connecting plate (6) is provided on the upper side of the connecting plate (6), a connecting shaft (10) for mounting on the output shaft of the motor is connected and fixed at the middle position of the upper surface of the docking plate (8), a tube cutter head (2) that fits the core barrel (1) is provided at the lower end of the core barrel (1), a plurality of arc plates (3) are evenly fixed on the side of the tube cutter head (2) facing the core barrel (1), and the outer surface of the core barrel (1) is provided with a plurality of arc plates (3). The surface is provided with a plurality of arc grooves (18) which are equidistantly arranged in an annular shape and matched with the arc plate (3); the arc plate (3) is inserted in the arc groove (18); the upper end of the core tube (1) is provided with a ring (4) which is in sliding contact with the core tube (1); the upper end of the arc plate (3) is connected and fixed to the ring (4); the outer surface of the ring (4) is provided with a plurality of support plates (12) which are equidistantly arranged in an annular shape; the end of the support plate (12) away from the ring (4) is connected and fixed with a connecting ear (11); the connecting ear (11) is connected and fixed to the connecting plate (6) and the docking plate (8) by means of a screw (9) and a nut (5) which match each other.

2. A road surface coring device according to claim 1, characterized in that: A small hole is provided on the upper surface of the connecting ear (11), a plurality of lower circular holes (15) are provided on the upper surface of the connecting plate (6), the small holes are aligned with the lower circular holes (15), and a plurality of upper circular holes aligned with the lower circular holes (15) are provided on the upper surface of the docking plate (8) at equal intervals in a circular shape. A screw (9) is inserted into a channel formed by the upper circular hole, the lower circular hole (15) and the small hole, and a nut (5) is threadedly connected to one end of the screw (9), and the nut (5) is arranged on the side of the connecting ear (11) facing away from the connecting plate (6).

3. A road surface coring device according to claim 2, characterized in that: A connecting column (13) is connected and fixed to the middle position of the upper surface of the connecting disk (6); an end of the connecting column (13) facing away from the connecting disk (6) is connected and fixed to a support disk (7) for limiting the position of the head of the screw (9); the support disk (7) is arranged between the connecting column (13) and the docking disk (8); a plurality of middle circular holes (16) aligned with the upper circular hole and the lower circular hole (15) are opened in an annular shape and equidistantly on the upper surface of the support disk (7); the screw (9) passes through the middle circular hole (16).

4. A road surface coring device according to claim 1, characterized in that: The support plate (12) and the connecting ear (11) are an integrally formed structure, and the support plate (12) and the connecting ear (11) are arranged perpendicular to each other.

5. The road surface coring device according to claim 1, characterized in that: The upper surface of the barrel cutter head (2) is annularly and equidistantly fixed with a plurality of plug posts (20), and the plurality of plug posts (20) are alternately arranged with a plurality of arc-shaped plates (3). The lower surface of the core-taking barrel (1) is annularly and equidistantly provided with a plurality of sockets (19) that match the plug posts (20), and the plug posts (20) are inserted into the sockets (19).

6. The road surface coring device according to claim 1, characterized in that: The upper surface of the core barrel (1) is provided with a plurality of vent holes (14), and the plurality of vent holes (14) are arranged in a circular shape and at equal intervals on the upper surface of the core barrel (1).

Images