Hole filling device for road coring hole

Abstract

A hole filling device for a road coring hole comprises an annular cylinder, an outer cylinder and an inner cylinder, a circular truncated cone is arranged at the bottom of the inner cylinder, and a ball is arranged at the top of the circular truncated cone; the rotary adjusting assembly comprises a plurality of sawtooth rods and a gear column, and the bottom of the gear column makes contact with the ball; the tooth sections of all the sawtooth rods sequentially penetrate through the outer cylinder and the inner cylinder and then are directly meshed with the gear column penetrating through the inner cylinder. The gear column is controlled to rotate so that all the sawtooth rods can be driven to rotate in the forward direction or the reverse direction, all the sawtooth rods are synchronously driven to extend outwards or contract inwards, and therefore the outer ends of all the sawtooth rods abut against the inner wall of the hole to be fixed or not make contact with the hole. The hole protection device is simple in structure and easy to operate, the hole can be rapidly and accurately closed and protected, the hole protection device can be firmly fixed into the hole, meanwhile, the hole structure can be effectively protected, and normal walking is not affected; the operation is safe, the efficiency is high, and the device can be taken out reversely and reused.

Description

Technical Field

[0001] This application belongs to the technical field of auxiliary equipment for road construction, and in particular relates to a filling device for road core drilling holes. Background Technology

[0002] In recent years, with the rapid development of the national economy, the construction of transportation infrastructure has become one of the key factors in measuring the level of development of a city or region. Whether it's highways, ordinary urban roads, or roads, with the increasing prevalence and accessibility of asphalt materials, most road surfaces are now paved with asphalt. The smoothness, permeability, and ease of construction of asphalt roads have made this type of material widely used in current transportation networks. After the asphalt road construction is completed, the structural layers of the road need to be tested, and core sampling is an indispensable method for this testing.

[0003] Core sampling is a crucial testing method in road engineering and pavement maintenance. Core sampling of asphalt pavements is an important means of understanding the internal structure and performance of the road. Through observation and testing of core samples, key indicators such as the composition, density, porosity, and permeability of the asphalt mixture can be assessed, thereby determining whether the overall quality of the asphalt pavement meets design requirements. This need stems from the high importance placed on road safety, stability, and durability, ensuring smooth traffic flow and driving safety. Simultaneously, core sampling allows for direct observation of internal damage to the asphalt pavement, such as cracks, ruts, and loosening. This damage not only affects the road's performance but can also lead to safety hazards.

[0004] Therefore, core sampling can determine the scope and extent of road surface repairs, providing important reference for the design and implementation of repair plans. However, existing core sampling methods often have the following problems:

[0005] 1. After core sampling, the holes left behind in general roads need to be filled with appropriate materials. If the holes cannot be filled in time, the core sampling holes will remain untreated, leaving a large number of core sampling holes on the road surface.

[0006] 2. After conventional road coring, due to the large number of cored samples but the small size of each individual sample, the required filling material cannot be obtained in a timely manner, resulting in more time and effort being wasted on material procurement and transportation, thus increasing processing costs.

[0007] 3. After core sampling of ordinary roads, construction workers may not be able to obtain the appropriate materials for filling the holes in time. In such cases, they may use ordinary concrete or mortar to fill the holes. This can lead to increased road damage at the filling points after core sampling due to the different materials used and the varying external temperatures or rolling pressures.

[0008] 4. Because the holes after road coring cannot be filled in time, rainwater can easily accumulate at the coring holes on the road. If the water accumulates for too long, coupled with the pressure of vehicles on the road, it may damage the internal structure of the road.

[0009] 5. If the holes left after road core sampling are not treated for a long time, the holes may pose a danger to the daily travel of bicycle or electric vehicle users. Due to the presence of the holes, electric vehicles may bounce or deviate when passing through the holes at high speed, resulting in traffic injuries. Summary of the Invention

[0010] This application provides a filling device for road coring holes, which solves the technical problem of how to quickly, timely and effectively fill and protect road coring holes.

[0011] To solve at least one of the above-mentioned technical problems, the technical solution adopted in this application is:

[0012] A filling device for road core sampling holes includes:

[0013] An annular cylindrical column has an outer cylinder and an inner cylinder, and a frustum is provided at the bottom of the inner cylinder, and a ball is provided at the top of the frustum;

[0014] A rotary adjustment assembly includes several serrated rods and a gear post, the bottom of which contacts the ball bearing;

[0015] After the tooth segments of all the saw teeth pass through the outer cylinder and the inner cylinder in sequence, they directly mesh with the gear column that passes through the inner cylinder; controlling the rotation of the gear column can drive all the saw teeth to rotate in the forward or reverse direction, and simultaneously drive all the saw teeth to extend outward or retract inward, so that the outer ends of all the saw teeth abut against the inner wall of the hole and are fixed or do not contact the hole.

[0016] Furthermore, there are four sawtooth rods arranged at the same height on the annular cylindrical column, and the tail of each sawtooth rod is a smooth surface.

[0017] Furthermore, the top of the annular cylinder is an annular closed surface, and a cover plate that movably engages with the annular closed surface is also provided on the annular closed surface.

[0018] Furthermore, an integrally formed annular pad is provided on the outer edge of the annular closed surface, with the outer extension of the annular pad extending outward and suspended.

[0019] Furthermore, the top of the ring pad is a downward sloping surface with an inclination of no more than 10°.

[0020] Furthermore, the gear column includes a gear column and a connecting rod. The top of the connecting rod is provided with a hexagonal bolt hole, which directly mates with the circular hole at the center of the cover plate. The hexagonal bolt hole is fixed on the flange gasket on the connecting rod. The diameter of the flange gasket is larger than the diameter of the circular hole. The hexagonal bolt hole passes through the circular hole and makes the flange gasket contact the lower end face of the cover plate.

[0021] Furthermore, the bottom of the annular cylinder is a circular closed surface, the frustum and the inner cylinder are integrally configured, and a stepped surface is provided on the top of the frustum.

[0022] Furthermore, the ball is positioned at the center of the stepped surface, and it can contact the bottom groove of the gear post; controlling the rotation of the connecting rod can cause the gear post to rotate along its axial direction.

[0023] Furthermore, the outer surfaces of the toothed column are all straight tooth surfaces, which mesh with the straight teeth in the sawtooth bar, and their height is greater than the height of the straight teeth in the sawtooth bar.

[0024] The hole-filling device for road core sampling holes designed in this application has a simple structure and is easy to operate. It can quickly and accurately close and protect the hole, and can be firmly fixed in the hole and integrated with the surrounding road surface to ensure the smoothness and consistency of the road surface. At the same time, it can effectively protect the hole structure and does not affect normal walking. It is safe and efficient to operate, can also be extracted in reverse, and can be reused. Attached Figure Description

[0025] Figure 1 This is a perspective view of the hole-filling device in this application;

[0026] Figure 2 This is a front view of the hole-filling device in this application;

[0027] Figure 3 This is a perspective view of the frustum structure in this application;

[0028] Figure 4 This is a perspective view of the gear post and ball bearing in this application.

[0029] Figure 5 This is a top view of the tuning components in this application.

[0030] In the picture:

[0031] 10. Annular cylindrical column; 11. Frustum; 12. Spherical bead.

[0032] 13. Cover plate; 14. Ring gasket; 20. Rotary adjustment assembly

[0033] 21. Sawtooth rod; 22. Gear post; 23. Hex bolt hole Detailed Implementation

[0034] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0035] This embodiment proposes a filling device for road core sampling holes, such as... Figure 1 As shown, the device includes a hollow annular cylinder 10 and an adjusting assembly 20 for adjusting contact with the hole. The annular cylinder 10 comprises an outer cylinder and an inner cylinder, with a frustum 11 at the bottom of the inner cylinder and a freely rotatable ball bearing 12 at the top of the frustum 11. The adjusting assembly 20 includes several serrated rods 21 and a gear post 22, with the bottom of the gear post 22 contacting the ball bearing 12. The teeth of all the serrated rods 21 pass sequentially through the outer and inner cylinders and directly mesh with the teeth of the gear post 22 passing through the inner cylinder. Controlling the rotation of the gear post 22 drives all the serrated rods 21 in the same direction, synchronously causing all the serrated rods 21 to extend outwards, so that the outer ends of all the serrated rods 21 abut against the inner wall of the hole and are fixed in place. Alternatively, controlling the rotation of the gear column 22 can drive all the saw teeth to rotate in the opposite direction, so that all the saw teeth 21 can be synchronously driven to retract inward, so that the outer ends of all the saw teeth 21 are away from the inner wall of the hole and do not contact the hole, thereby releasing the filling device and allowing the filling device to be removed from the hole as a whole.

[0036] like Figure 2 As shown, the bottom of the annular cylinder 10 is a circular closed surface, which allows the inner and outer cylinders to be fixed together as one unit. The top of the annular cylinder 10 is an annular closed surface, which allows the inner and outer cylinders to be connected together to form a hollow cylinder structure.

[0037] Furthermore, a cover plate 13 is provided on the annular closed surface, which is movably fitted with the inner edge of the annular closed surface. A circular hole is provided in the center of the cover plate 13, which is just enough to allow the connecting rod of the gear rod 22 to pass through and be securely embedded in the cover plate 13. At the same time, the cover plate 13 is also provided with several cross-shaped bolt fixing holes to fix the cover plate to the annular closed surface.

[0038] Meanwhile, an annular pad 14 integrally formed with the annular closed surface is provided at the outer edge of the annular closed surface, with the outer extension of the annular pad 14 extending outward and suspended. Preferably, the top of the annular pad 14 is a downward sloping surface with a slope of no more than 10°, mainly to facilitate unobstructed passage of vehicles, which not only protects the top of the filling device, but also protects the edge structure of the hole.

[0039] likeFigure 3 As shown, the frustum 11 and the inner cylinder are integrated, and a stepped surface is provided on the top of the frustum 11, mainly for placing the ball 12, and also to form a space with the outer edge of the frustum 11, so as to avoid interference between the serrated rod 21 and the outer edge of the frustum 11.

[0040] like Figure 4 As shown, the ball 12 is embedded at the center of the stepped surface of the frustum 11, and it can contact the groove on the bottom surface of the gear post 22. By controlling the rotation of the connecting rod on the gear post 22, the gear post 22 can be rotated along its axial direction.

[0041] The gear post 22 includes a gear post and a connecting rod. A hexagonal bolt hole 23 is provided at the top of the connecting rod, which passes directly through the circular hole in the cover plate 13. The hexagonal bolt hole 23 is welded to a flange gasket at the top of the connecting rod. The diameter of the flange gasket is larger than the diameter of the circular hole. When mated, the hexagonal bolt hole 23 passes through the circular hole and the flange gasket directly contacts the lower end face of the cover plate 13.

[0042] like Figure 5 As shown, there are four sawtooth rods 21, arranged at the same height on the annular cylindrical column 10. The tail of each sawtooth rod 21 is a smooth surface, and its end near the inner cylinder is a straight tooth section. All straight teeth are set perpendicular to the height of their inner surface and directly mesh with the outer surface of the column. To ensure the safety and stability of gear meshing, the height of the gear surface in the column is required to be 1-1.5 times the height of the straight teeth in the sawtooth rod 21. Preferably, the height of the gear surface in the column is required to be 1.2 times the height of the straight teeth in the sawtooth rod 21. This is because if the height of the column is greater than 1.5 times the height of the straight teeth in the sawtooth rod 21, the straight teeth will slide up and down along the height of the column during gear meshing. If the height of the column is less than the height of the straight teeth in the sawtooth rod 21, the sawtooth rod 21 cannot be stably driven to mesh, directly affecting the working state of the sawtooth rod 21.

[0043] All components of the hole-filling device are readily available and can be fabricated directly from materials found on-site. Assembly can also be completed using simple materials, requiring minimal material and processing costs. The device has a simple structure and is easy to operate, providing better protection for holes by creating a closed seal, effectively preventing debris and waste from falling into them and avoiding the hassle of later cleaning.

[0044] The overall safety performance is higher. The filling device can better protect the holes after road core sampling, ensuring the consistency of the road surface and preventing electric vehicles and bicycles from falling due to unfilled holes, thus avoiding safety accidents.

[0045] The entire construction process involves simply rotating the gear column 22 using a hexagonal wrench. This causes the gear column 22 to rotate the meshing sawtooth rod 21, thus fixing the filling device in the core hole. This filling device is simple to operate, requiring only one person to complete the installation. It provides excellent hole filling and protection, can be reused multiple times, is environmentally friendly, and produces no pollutants. Not only is the filling and protection highly efficient and of high quality, but it can also be reversed and pulled out of the hole for reuse when hole protection and filling are no longer needed.

[0046] A method for filling road core sampling holes, using the filling device described above, includes the following steps:

[0047] S1. The construction personnel measure the size of the road core sampling hole and select an outer cylinder of the annular column 10 that can fit the hole based on the hole size.

[0048] S2. Select an inner cylinder with the same diameter as the frustum 11 and make the height of the inner cylinder the same as the height of the outer cylinder. Prepare the circular closed surface structure at the bottom and the annular closed surface structure at the top of the annular cylinder 10. The circular closed surface fixes the inner cylinder and the outer cylinder to the same bottom surface. The annular closed surface connects the inner cylinder and the outer cylinder as a whole. An inclined ring pad 14, integrally machined with the ring closed surface, is provided on the outer edge of the annular closed surface. Its slope allows vehicles to pass up and down without obstruction. It not only protects the top of the filling device but also protects the edge structure of the hole. At the same time, a ball bearing 12 is arranged on the top of the frustum 11 to support the gear column 22 and facilitate the rotation of the gear column 22.

[0049] S3. Through holes for the four sawtooth rods 21 to pass through are sequentially prepared on the inner and outer cylinder walls, and the four sawtooth rods 21 are mounted on the inner and outer cylinder walls; at the same time, the straight tooth sections of the four sawtooth rods 21 enclose a regular quadrilateral space to facilitate meshing with the gear column 22.

[0050] S4. The gear column in the control gear column 22 is vertically inserted into the inner cylinder and directly meshes with the straight teeth on all the saw teeth 21; a cover plate 13 is provided at the top of the outer cylinder to stabilize the gear column 22, and a circular hole is provided in the center of the cover plate through which the hexagonal bolt hole 23 at the top of the gear column 22 passes, so that the entire core-taking and filling device is constructed as a closed structure.

[0051] S5. Insert the filling device into the hole in the road, and use a hexagonal wrench to turn the hexagonal bolt hole 23 clockwise to drive the gear column 22 to rotate clockwise. The gear column 22, suspended by the ball 12, can move along its own axis and drive all the saw teeth 21 to move outward synchronously until the outer ends of all the saw teeth 21 abut against the inner wall of the hole, thereby fixing the filling device in the hole.

[0052] S6. When it is necessary to fill the hole with sealing material, the hexagonal bolt hole 23 should be rotated in the opposite direction by using a hexagonal bolt wrench so that the gear column 22 drives all the saw teeth 21 to move inward. When all the saw teeth 21 are no longer in contact with the inner wall of the hole, the filling device can be pulled out of the hole as a whole to fill the hole with material.

[0053] S7. Repeat steps S5-S6 to continue using the pulled-out filling device to fill and protect the next hole.

[0054] The filling device for road core sampling holes designed in this application has a simple structure and is easy to operate. It can quickly and accurately close and protect the hole, firmly fix it in the hole, and integrate it with the surrounding road surface to ensure the smoothness and consistency of the road surface. At the same time, it can effectively protect the hole structure without affecting normal traffic. It is safe and efficient to operate, can be retrieved in reverse, and can be reused. This application also proposes a construction method using this filling device.

[0055] The embodiments of this application have been described in detail above. These descriptions are merely preferred embodiments and should not be construed as limiting the scope of this application. All equivalent variations and modifications made within the scope of this application should still fall within the patent coverage of this application.

Claims

1. A hole filling device for road coring holes, characterized in that It comprises: a ring-shaped cylinder provided with an outer cylinder and an inner cylinder, and a circular table at the bottom of the inner cylinder, and a ball at the top of the circular table; a rotation adjusting assembly comprising a plurality of sawtooth rods and a gear column, the bottom of the gear column being in contact with the ball; the teeth of all the sawtooth rods pass through the outer cylinder and the inner cylinder in turn and are directly engaged with the gear column passing through the inner cylinder; controlling the rotation of the gear column can drive all the sawtooth rods to rotate in the same direction or in the opposite direction, synchronously driving all the sawtooth rods to expand outward or contract inward, so that the outer ends of all the sawtooth rods are fixed against the inner wall of the hole or do not contact the hole.

2. A hole filling device for road coring holes according to claim 1, characterized in that The number of sawtooth rods is four, which are arranged at the same height on the ring-shaped cylinder, and the tail of the sawtooth rod is a smooth surface.

3. A hole filling device for road coring holes according to claim 1 or 2, characterized in that The top of the ring-shaped cylinder is a ring-shaped closed surface, and a cover plate is further arranged on the ring-shaped closed surface and movably connected with the ring-shaped closed surface.

4. A hole filling device for road coring holes according to claim 3, characterized in that An annular pad is further arranged on the outer edge of the ring-shaped closed surface and integrally formed with the ring-shaped closed surface, and the outer extension of the annular pad extends outward and suspends.

5. A hole filling device for road coring holes according to claim 4, characterized in that The top of the annular pad is a downward inclined slope, and the slope is not greater than 10°.

6. A hole filling device for road coring holes according to any one of claims 4-5, characterized in that The gear column comprises a tooth column and a connecting rod, the top of the connecting rod is provided with a hexagonal bolt hole directly matched with a circular hole at the center of the cover plate, the hexagonal bolt hole is fixed on a flange pad on the connecting rod, the diameter of the flange pad is greater than that of the circular hole, the hexagonal bolt hole passes through the circular hole and makes the flange pad in contact with the lower end surface of the cover plate.

7. A hole filling device for road coring holes according to claim 6, characterized in that The bottom of the ring-shaped cylinder is a circular closed surface, the circular table and the inner cylinder are integrally arranged, and a stepped surface is further arranged at the top of the circular table.

8. A hole filling device for road coring holes according to claim 7, characterized in that The ball is arranged at the center of the stepped surface and can be in contact with the bottom groove of the gear column; Controlling the rotation of the connecting rod can make the tooth column rotate along its axial direction.

9. A hole filling device for road coring holes according to claim 7 or 8, characterized in that The outer extension surface of the tooth column is a straight tooth surface, which is engaged with the straight teeth of the sawtooth rod, and the height of the straight tooth surface is greater than the height of the straight teeth of the sawtooth rod.

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