Road asphalt surface layer coring and hole filling compaction device

Abstract

The utility model discloses a road asphalt surface layer coring and hole filling compaction device, which belongs to the technical field of road construction equipment and comprises a shell, a pressure spring seat is arranged at the top of an inner cavity of the upper shell, and an ejector rod is arranged on a bottom plate surface of the pressure spring seat; a compression spring is arranged in an inner cavity of the upper shell, the lower end of the compression spring abuts against a pedestal, a guide rod integrated with the pedestal is fixed to the bottom plate face of the pedestal, a heavy punch integrated with the guide rod is fixed to the upper portion of the guide rod, and a tension spring is arranged between the lower plate face of the heavy punch and the limiting bearing platform. The diameter of the heavy hammer is smaller than the inner cavity of the upper shell and larger than the inner diameter of the lower shell; the lower end of the guide rod extends out of the lower shell and then is fixed with the hammering seat into a whole, an installation groove is formed in the top plate face of the pedestal, a hook is installed in the installation groove through a torsion spring, and the hooking portion of the hook penetrates through the pedestal and then is connected with the top of the heavy hammer in a hooking mode. Due to the structure, the labor intensity of workers is reduced, and the filling quality and the hole filling efficiency are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of highway construction equipment, and provides a core sampling and compaction device for highway asphalt pavement filling that reduces the labor intensity of workers and improves the filling quality and efficiency of filling holes. Background Technology

[0002] Currently, asphalt concrete pavement is the primary structure of highways in my country. Current standards stipulate that core drilling is the standard method for evaluating the thickness and compaction of asphalt pavements. This method involves frequent testing, leaving numerous core sampling holes on the pavement that need to be filled promptly. The main method for filling these holes is manual compaction of the asphalt mixture using hammers and other tools. This method, due to its labor-intensive nature and high intensity, often results in inconsistent and haphazard filling, making it difficult to guarantee compaction quality. This leads to insufficient compaction, high permeability, and other problems that negatively impact pavement quality.

[0003] Most of the existing core sampling and hole filling devices involve manually or electrically lifting a heavy hammer mounted on a sliding rod. After reaching a certain height, the hammer falls freely to compact the asphalt mixture. Manually lifting the heavy hammer is usually quite laborious, and repeated operation over a long period of time can lead to personnel fatigue. Electrically lifting the heavy hammer is also inconvenient to use in construction site environments, and the compaction efficiency is not high. The filling time is also long, and the decrease in temperature of the asphalt mixture can also affect the filling quality of the hole.

[0004] In summary, the heavy hammer lifting method in existing coring and hole-filling devices results in high labor intensity for workers, poor filling quality, and low hole-filling efficiency. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a core sampling and compaction device for asphalt pavement, which aims to solve the technical problems of high labor intensity, poor filling quality and low filling efficiency of existing core sampling and compaction devices.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a core sampling and compaction device for asphalt pavement, which includes an outer shell consisting of an upper outer shell and a lower outer shell. The inner diameter of the upper outer shell is larger than the inner diameter of the lower outer shell, and a limiting support is provided at the connection between the upper and lower outer shells.

[0008] A compression spring seat is provided at the top of the inner cavity of the upper outer shell, and a top rod integrally formed therewith is provided on the bottom plate surface of the compression spring seat; a compression spring is provided in the inner cavity of the upper outer shell, the lower end of the compression spring is tightly pressed against the base, a guide rod integrally formed therewith is fixed on the bottom plate surface of the base, a counterweight integrally formed therewith is fixed on the upper part of the guide rod, a tension spring is provided between the lower plate surface of the counterweight and the limiting support, and the diameter of the counterweight is smaller than the inner cavity of the upper outer shell and larger than the inner diameter of the lower outer shell;

[0009] The lower end of the guide rod extends out of the lower outer shell and is fixed to the hammer base. The top plate of the base is provided with a mounting groove, and a hook is installed in the mounting groove by a torsion spring. The hook's attachment part passes through the base and is attached to the top of the hammer.

[0010] To accommodate different core diameters, the above scheme further includes: a compaction base plate threadedly connected to the lower end of the hammer holder.

[0011] For ease of operation, the above solution further includes: a downward pressure handle integrally formed with the top of the compression spring seat.

[0012] To facilitate the connection and disconnection between the weight and the hook, the above solution further includes: a suspension plate integrally attached to the top of the weight, and the hook's attachment part attached to the suspension plate.

[0013] To facilitate the loading and unloading of the upper and lower outer shells, the above solution further includes: the upper and lower outer shells are threaded together.

[0014] The beneficial effects of this utility model are:

[0015] (1) Improved the compaction quality of the hole filling, ensuring that the compaction degree and permeability coefficient meet the specifications and improve the road surface quality.

[0016] (2) Improved the efficiency of hole repair, reduced manual operation time and reduced labor intensity.

[0017] (3) The structure is simple, easy to maintain and adjust, and highly adaptable. The setting of compaction base plates of different diameters can be used to fill core holes of different diameters.

[0018] (4) It saves labor and reduces construction costs.

[0019] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0021] Figure 1 This is a schematic diagram of the structure of the hammer of this utility model under normal conditions;

[0022] Figure 2 This is a schematic diagram of the structure of the present invention under the condition of the compression spring moving downward;

[0023] Figure 3 This is a schematic diagram of the structure of the present invention in the state of the released hammer.

[0024] Figure 4 This is a schematic diagram of the structure of the guide rod of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure at the connection between the lower outer shell and the upper outer shell of this utility model;

[0026] Figure 6 This is a structural schematic diagram of the base of this utility model.

[0027] Reference numerals: 1. Downward grip; 2. Upper outer shell; 3. Compression spring; 4. Counterweight; 5. Tension spring; 6. Guide rod; 7. Lower outer shell; 8. Hammer seat; 9. Compacting base plate; 10. Compression spring seat; 11. Top rod; 12. Hook; 13. Torsion spring; 14. Base; 15. Limiting support; 16. Suspension plate. Detailed Implementation

[0028] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Where there is no conflict, the following embodiments and features can be combined with each other.

[0029] Furthermore, the reference numbers and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed.

[0030] like Figures 1 to 6As shown, the present invention relates to a core sampling and compaction device for asphalt pavement of highways, which includes an outer shell consisting of an upper outer shell 2 and a lower outer shell 7. The inner diameter of the upper outer shell 2 is larger than the inner diameter of the lower outer shell 7, and a limiting support 15 is provided at the connection between the upper outer shell 2 and the lower outer shell 7.

[0031] A compression spring seat 10 is provided at the top of the inner cavity of the upper outer shell 2. A top rod 11 integral with the compression spring seat 10 is provided on the bottom plate surface of the compression spring seat 10. A compression spring 3 is provided in the inner cavity of the upper outer shell 2. The lower end of the compression spring 3 is tightly pressed against the base 14. A guide rod 6 integral with the base 14 is fixed on the bottom plate surface of the base 14. A counterweight 4 integral with the guide rod 6 is fixed on the upper part of the guide rod 6. A tension spring 5 is provided between the lower plate surface of the counterweight 4 and the limiting support 15. The diameter of the counterweight 4 is smaller than the inner cavity of the upper outer shell 2 and larger than the inner diameter of the lower outer shell 7.

[0032] The lower end of the guide rod 6 extends out of the lower outer shell 7 and is fixed to the hammer base 8. A mounting groove is provided on the top plate of the platform 14. A hook 12 is installed in the mounting groove via a torsion spring 13. The hook 12's attachment part passes through the platform 14 and engages with the top of the hammer 4. In this embodiment, the upper and lower ends of the tension spring 5 are fixedly connected to the hammer 4 and the limiting support 15, respectively.

[0033] To accommodate different core diameters, in the above embodiment, preferably, the lower end of the hammer holder 8 is threadedly connected to a compaction base plate 9. In this embodiment, the compaction base plate 9 adopts different diameters according to the core hole diameters, making it highly versatile.

[0034] For ease of operation, in the above embodiments, preferably, the top of the compression spring seat 10 is provided with a downward pressure handle 1 integral with it.

[0035] To facilitate the connection and disconnection between the weight 4 and the hook 12, in the above embodiment, preferably, the top of the weight 4 is fixed with a suspension plate 16 integral with it, and the hook 12 is attached to the suspension plate 16.

[0036] To facilitate the loading and unloading of the upper outer shell 2 and the lower outer shell 7, in the above embodiment, preferably, the upper outer shell 2 and the lower outer shell 7 are threaded together.

[0037] In the above embodiments, all components are commercially available products.

[0038] The usage process of the structure described in the above scheme is as follows: Figure 1 The image shows the normal placement state. During use, the operator presses down on the handle 1, causing the housing to move downwards. Simultaneously, the compression spring 3 and tension spring 5 compress and stretch respectively, causing the housing to move further downwards until... Figure 2In the state where the top rod 11 triggers the hook 12, releasing the hammer 4, which, under the action of the tension spring 5, accelerates towards the hammer seat 8 to compact the asphalt mixture. After release, as follows... Figure 3 State. When the handle 1 is released and pressed down, the housing part returns to its original position under the action of the compression spring 3, and the hook 12 returns to its original position under the action of the torsion spring 13. The lower housing 7 lifts the weight 4 and hangs on the hook 12, completing one compaction.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A core sampling and compaction device for asphalt pavement filling in highways, characterized in that: Includes an outer shell, which is composed of an upper outer shell (2) and a lower outer shell (7). The inner diameter of the upper outer shell (2) is larger than the inner diameter of the lower outer shell (7). The connection between the upper outer shell (2) and the lower outer shell (7) has a limiting support (15). A compression spring seat (10) is provided at the top of the inner cavity of the upper outer shell (2), and a top rod (11) integral with it is provided on the bottom plate surface of the compression spring seat (10); a compression spring (3) is provided in the inner cavity of the upper outer shell (2), and the lower end of the compression spring (3) is pressed against the platform (14). A guide rod (6) integral with it is fixed on the bottom plate surface of the platform (14), and a counterweight (4) integral with it is fixed on the upper part of the guide rod (6). A tension spring (5) is provided between the lower plate surface of the counterweight (4) and the limiting support (15). The diameter of the counterweight (4) is smaller than the inner cavity of the upper outer shell (2) and larger than the inner diameter of the lower outer shell (7). The lower end of the guide rod (6) extends out of the lower outer shell (7) and is fixed to the hammer seat (8) as a whole. The top plate of the platform (14) is provided with an installation groove. A hook (12) is installed in the installation groove by means of a torsion spring (13). The hook (12) is attached to the top of the hammer (4) after passing through the platform (14).

2. The highway asphalt pavement core sampling and compaction device according to claim 1, characterized in that: The lower end of the hammer base (8) is threadedly connected to a compaction base plate (9).

3. The highway asphalt pavement core sampling and compaction device according to claim 1, characterized in that: The top of the compression spring seat (10) is provided with a pressing handle (1) integral with it.

4. The highway asphalt pavement core sampling and compaction device according to claim 1, characterized in that: The top of the hammer (4) is fixed with a suspension plate (16) integral with it, and the hook (12) is attached to the suspension plate (16).

5. The highway asphalt pavement core sampling and compaction device according to claim 1, characterized in that: The upper outer shell (2) and the lower outer shell (7) are threaded together.

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