Bituminous pavement core drilling and pit filling instrument

Abstract

The utility model discloses an asphalt pavement core drilling and pit filling instrument, which relates to the technical field of pavement detection, aims to solve the technical problem that pavement filling is not compact, and comprises a driving hammer handle, a driving hammer rod is in limiting joggle joint with the lower half part of the driving hammer handle, the bottom end of the driving hammer rod is connected with a hammer head, and an expansion head is arranged above the hammer head. A limiting plate connected with the hammer driving rod is arranged above the expansion head, a connecting piece is arranged between the bottom end of the limiting plate and the expansion head, at least one hammer falling rod is arranged at the top of the hammer head, a hammer stirring structure is arranged on one side of the hammer falling rod, and a pulling-up structure is arranged at the end of the hammer stirring structure. Through the limiting joggling of the driving hammer rod and the driving hammer handle, the connection of the driving hammer rod and the hammer head, the design of the rotating head and the outer raised head, the matching of the expansion head and the hammer head, the connection design of the fastening screw pin, the design of the winding roller and the steel rope, and the connection structure of the rotating head and the motor driving end through the one-way bearing, the driving hammer can be driven to rotate. The device has the advantage of automatically hammering and compacting the pit and the pit and the road surface.

Description

Technical Field

[0001] The utility model relates to the technical field of pavement detection, and more specifically, to a core drilling and pothole filling instrument for asphalt pavement. Background Art

[0002] When detecting the thickness and compaction degree of the pavement structural layer, the most commonly used detection method is the core drilling method, which requires core drilling and sampling by damaging the asphalt pavement structural layer. Inevitably, damage to the road surface will occur during the sampling process, and the filling is not dense during the later filling process, affecting the cross-section of the entire asphalt pavement. After the road is opened to traffic, water damage is inevitable, which has a negative impact on the quality of the asphalt pavement. In order to greatly reduce the impact of pothole compaction problems on the pavement structural layer and further reduce problems such as non-dense filling during the filling of newly paved asphalt pavement. In view of this, we propose a core drilling and pothole filling instrument for asphalt pavement. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art, meet the actual needs, and provide a core drilling and pothole filling instrument for asphalt pavement to solve the technical problem of non-dense filling of the current road surface.

[0004] To solve the above technical problems, the utility model provides the following technical solution: a core drilling and pothole filling instrument for asphalt pavement, including a hammer handle, the lower half of the hammer handle is limited and tenoned with a hammer rod, the bottom end of the hammer rod is connected with a hammer head, an expansion head is arranged above the hammer head, a limiting plate connected with the hammer rod is arranged above the expansion head, a connecting piece is arranged between the bottom end of the limiting plate and the expansion head, at least one drop hammer rod is arranged at the top of the hammer head, a hammer-pulling structure is arranged on one side of the drop hammer rod, and a lifting structure is arranged at the end of the hammer-pulling structure.

[0005] Preferably, a frame body is further arranged on the outer side of the hammer handle, a guide seat is arranged between the outer circumference of the frame body and the hammer handle, a plurality of extension rods are connected to the top of the frame body, a top plate is connected between the tops of the plurality of extension rods, a threaded rod is rotatably connected to the top plate, and the bottom end of the threaded rod is in threaded connection with the hammer handle.

[0006] Preferably, the expansion head is a hollow shell, the inner circumference of the expansion head is adapted to the outer circumference of the hammer head, a fastening pin is arranged between the expansion head and the hammer head, and the drop hammer rod penetrates through the limiting plate and the expansion head to form a limiting structure.

[0007] Preferably, the hammer-pulling structure includes a rotating head, an outer convex head is connected to the outer circumference of the rotating head, the outer convex head can rotate and contact the drop hammer rod, an extension part for facilitating hammer pulling is convexly arranged at the top end of the drop hammer rod, and one end of the rotating head is connected with a motor, and the driving end of the motor is connected with the rotating head through a one-way bearing.

[0008] Preferably, the lifting structure includes a roller and a steel rope. The center of the roller is fixed to the driving end of the motor, and the steel rope is wound around the outer circumference of the roller.

[0009] Preferably, a hook is connected to the end of the steel rope, and a hanging ring is arranged on the outer circumference of the expansion head.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. Through the limit mortise and tenon connection between the hammer rod and the hammer handle, the connection between the hammer rod and the hammer head, the connection between the drop hammer rod and the hammer head, and the design of the rotating head and the outer convex head, combined with the connection and drive between the motor and the rotating head, when the motor acts, it drives the rotating head to rotate, so that the outer convex head rotates and contacts the drop hammer rod and pushes it to rise and then fall naturally, realizing the effect of automatic reciprocating hammering and solving the problem of non-compact filling of the road surface.

[0012] 2. Through the adaptation between the expansion head and the hammer head and the connection design of the fastening pin, the present utility model can expand the hammer head so that it can level the surrounding of the pothole. Then, through the design of the roller and the steel rope and the connection structure between the rotating head and the driving end of the motor through the one-way bearing, when the motor rotates along the free end of the one-way bearing, it drives the roller to rotate (at this time, it will not drive the rotating head to rotate), enabling the steel rope to be wound, further pulling the expansion head to lift and lower. With the connection of the connecting piece, it can greatly improve the convenience of installing and disassembling the expansion head, realizing the effect of automatically leveling the surrounding of the pothole while being very convenient for disassembly and assembly, and further solving the problem of leveling and compacting the pothole and the road surface after hammering the pothole solid. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic structural diagram of the hammering part of the present utility model;

[0015] Figure 3 is a schematic structural diagram of the hammer rod part of the present utility model;

[0016] Figure 4 is a schematic structural diagram of the lifting structure of the present utility model.

[0017] Explanation of the reference numerals in the figures: 1. Hammer handle; 2. Hammer rod; 3. Hammer head; 4. Expansion head; 5. Limiting plate; 6. Connecting piece; 7. Drop hammer rod; 8. Hammer-pulling structure; 9. Lifting structure; 10. Frame body; 11. Guide seat; 12. Extension rod; 13. Top plate; 14. Threaded rod; 15. Fastening pin;

[0018] 801. Rotating head; 802. Outer convex head; 803. Motor;

[0019] 901, Roller; 902, Steel rope. Detailed implementation mode

[0020] As Figures 1 to 4 shown, a core drilling and pothole filling instrument for asphalt pavement according to the present utility model includes a frame body 10. The bottom of the frame body 10 can be installed with moving wheels or the like for easy movement. A guiding seat 11 is installed on one side of the frame body 10. A hammer handle 1 is arranged inside the guiding seat 11. The lower half of the hammer handle 1 is limited and tenoned with a hammer rod 2. The bottom end of the hammer rod 2 is connected with a hammer head 3. At least one drop hammer rod 7 is arranged on the top of the hammer head 3. This application is designed with two on both sides to make it more stable. A hammer-pulling structure 8 is arranged on one side of the drop hammer rod 7. The hammer-pulling structure 8 includes a rotating head 801. An outer convex head 802 is connected to the outer circumference of the rotating head 801. The outer convex head 802 can rotate and contact the drop hammer rod 7. An extension part for facilitating hammer pulling is convexly arranged at the top end of the drop hammer rod 7. One end of the rotating head 801 is connected with a motor 803. When the rotating head 801 rotates, the outer convex head 802 rotates and contacts the extension part of the drop hammer rod 7, pushes it to rise and then naturally falls, achieving the effect of automatic reciprocating hammering. In order to fix the hammer head 3, a plurality of extension rods 12 are connected to the top of the frame body 10. A top plate 13 is connected between the tops of the plurality of extension rods 12. A threaded rod 14 is rotatably connected to the top plate 13. The bottom end of the threaded rod 14 is threadedly connected with the hammer handle 1. A turning handle is arranged at the top end of the threaded rod 14. By rotating the turning handle, the threaded rod 14 can be driven to rotate, so that the hammer handle 1 rises, and further the hammer head 3 rises, making it higher than the frame body 10 for storage when not in use.

[0021] In an embodiment of the present utility model, in order to level and compact the periphery of the pothole, an expansion head 4 is arranged above the hammer head 3. The expansion head 4 is a hollow shell. The inner circumference of the expansion head 4 is adapted to the outer circumference of the hammer head 3. A fastening pin 15 is arranged between the expansion head 4 and the hammer head 3. The drop hammer rod 7 passes through a limiting plate 5 and the expansion head 4 to form a limiting structure. A limiting plate 5 connected to the hammer rod 2 is arranged above the expansion head 4. A connecting member 6 is arranged between the bottom end of the limiting plate 5 and the expansion head 4. The connecting member 6 can be a clamping structure or a screw member, etc. The bottom end of the connecting member 6 can fix the expansion head 4 to realize the fixation of the expansion head 4 when not in use. A lifting structure 9 is arranged at the end of the hammer-pulling structure 8;

[0022] The lifting structure 9 includes a roller 901 and a steel rope 902. The center of the roller 901 is fixed to the driving end of the motor 803. The steel rope 902 is wound around the outer circumference of the roller 901. A hook is connected to the end of the steel rope 902. A hanging ring is arranged on the outer circumference of the expansion head 4. It should be noted that the driving end of the motor 803 and the rotating head 801 are connected by a one-way bearing. When the one-way bearing rotates in the limiting direction, it can drive the rotating head 801 to rotate, while when it rotates in the free end direction, it will not drive the rotating head 801 to rotate.

[0023] Working principle: This embodiment provides an asphalt pavement core drilling and pothole filling instrument. When in use, move the frame 10 to the pothole position. When filling the pothole, it is filled in two layers. Load the mixture into the pothole to half of its depth. Control the motor 803 through an external control structure to drive the rotating head 801 to rotate (at this time, the rotation direction is the limiting end, so it can drive the rotating head 801 to rotate), causing the outer convex head 802 to rotate, pushing the drop hammer rod 7 to rise and then fall naturally, achieving reciprocating ramming (it is preferably 72 times after experiments). Then add the other half and conduct ramming;

[0024] After the pothole is filled, hang the hook of the steel rope 902 on the hanging ear, release the fixation between the expansion head 4 and the connecting piece 6. The control structure controls the motor 803 to drive in the reverse direction, driving the winding roller 901 to rotate, winding the steel rope 902, driving the expansion head 4 to slowly descend. Then use the fastening pin 15 to fix the expansion head 4 to the hammer head 3 to expand its hammering diameter. Then remove the hook. According to the above operation, make the hammer head 3 reciprocate up and down to compact the periphery of the pothole.

[0025] The embodiments disclosed in this utility model are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of this utility model based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of this utility model, they are within the protection scope of this utility model.

Claims

1. A core drilling and pothole filling instrument for asphalt pavement, characterized in that, It includes a hammer handle (1), a hammer rod (2) is limit tenoned at the lower half of the hammer handle (1), a hammer head (3) is connected to the bottom end of the hammer rod (2), an expansion head (4) is arranged above the hammer head (3), a limit plate (5) connected to the hammer rod (2) is arranged above the expansion head (4), a connecting piece (6) is arranged between the bottom end of the limit plate (5) and the expansion head (4), at least one drop hammer rod (7) is arranged at the top of the hammer head (3), a hammer dialing structure (8) is arranged on one side of the drop hammer rod (7), and a lifting structure (9) is arranged at the end of the hammer dialing structure (8).

2. The core drilling and pothole filling instrument for asphalt pavement according to claim 1, wherein A frame body (10) is further arranged on the outer side of the hammer handle (1), a guide seat (11) is arranged between the outer circumference of the frame body (10) and the hammer handle (1), a plurality of extension rods (12) are connected to the top of the frame body (10), a top plate (13) is connected between the tops of the plurality of extension rods (12), a threaded rod (14) is rotatably connected to the top plate (13), and the bottom end of the threaded rod (14) is in threaded connection with the hammer handle (1).

3. The core drilling and pothole filling instrument for asphalt pavement according to claim 2, wherein The expansion head (4) is a hollow shell, the inner circumference of the expansion head (4) is adapted to the outer circumference of the hammer head (3), a fastening pin (15) is arranged between the expansion head (4) and the hammer head (3), and the drop hammer rod (7) penetrates through the limit plate (5) and the expansion head (4) to form a limit structure.

4. The core drilling and pothole filling instrument for asphalt pavement according to claim 3, wherein The hammer dialing structure (8) includes a rotating head (801), an outer convex head (802) is connected to the outer circumference of the rotating head (801), the outer convex head (802) can rotate and contact with the drop hammer rod (7), an extension part for facilitating hammer dialing is convexly arranged at the top end of the drop hammer rod (7), one end of the rotating head (801) is connected with a motor (803), and the driving end of the motor (803) is connected with the rotating head (801) through a one-way bearing.

5. The core drilling and pothole filling instrument for asphalt pavement according to claim 4, wherein The lifting structure (9) includes a roller (901) and a steel wire rope (902), the center of the roller (901) is fixed to the driving end of the motor (803), and the steel wire rope (902) is wound around the outer circumference of the roller (901).

6. The core drilling and pothole filling instrument for asphalt pavement according to claim 5, wherein A hook is connected to the end of the steel wire rope (902), and a hanging ring is arranged on the outer circumference of the expansion head (4).

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