Temporary backfilling device after coring for highway construction

Abstract

The invention discloses a post-coring temporary backfilling device for highway construction, and belongs to the technical field of highway construction. The temporary backfilling device is used for solving the problems that an existing temporary backfilling device is poor in adaptability to coring holes of different sizes, and operation is not convenient enough. The shell is a hollow cylinder, a threaded hole is formed in the middle of the upper end face of the shell, a plurality of through holes are formed in the lower end face of the shell, a plurality of openings are horizontally and evenly distributed in the outer wall of the shell in the circumferential direction, the first adjusting assembly is movably arranged in the shell, the upper end of the first adjusting assembly is in threaded connection with the shell, and the lower end of the first adjusting assembly is matched with the through holes. The second adjusting assembly is fixedly arranged in the shell and matched with the multiple openings, and the first adjusting assembly is movably arranged in the second adjusting assembly. According to the invention, temporary backfilling of the coring hole can be realized. The use of the pavement is not influenced. Adjustment can be carried out according to the size of the coring hole, and the adaptability to coring holes of different sizes is improved. Operation is convenient, adjustment can be achieved by rotating the rotary knob, complex operation tools are not needed, and the construction efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of highway construction, and in particular relates to a temporary backfilling device after coring for highway construction. Background Art

[0002] During highway construction, coring of the pavement is often necessary to assess its structure and quality. As a core technical tool for assessing road structural strength, material properties, and the causes of road defects, pavement coring is widely used in construction quality control and existing road performance diagnosis. However, if the holes formed after coring are not promptly addressed, they can lead to multiple technical pain points in the industry. Failure to promptly backfill highway coring can significantly impact the road structure and traffic safety. These impacts include: 1. Damage to the structural integrity of the pavement, creating a significant conflict between construction safety and traffic security. Coring operations can damage the local structure of asphalt or concrete pavements. Failure to promptly backfill the coring holes can expose the coring holes, potentially causing further damage due to rainwater infiltration, vehicle traffic, or temperature fluctuations, and even leading to pavement collapse. Unbackfilled coring holes exposed to the road surface can easily lead to tire blowouts, vehicle loss of control, or pedestrian tripping. This is especially true at night, in rainy or snowy conditions, or on heavily loaded roads, where the probability of accidents increases exponentially. The presence of holes forces subsequent processes (such as paving and compaction) to be interrupted or detoured, complicating machinery scheduling, delaying construction schedules, and increasing costs, contradicting the "zero interruption" requirement of modern construction. 2. Increased risk of pavement damage: Unfilled core holes can become channels for moisture. Failure to promptly backfill highway coring can significantly impact road structure and traffic safety. Specific impacts include: accumulating channels, accelerating asphalt aging or concrete strength degradation, causing transverse cracks, network cracks, and other defects, shortening the road's service life. 3. Impacts on driving safety: Long-term unrepaired core holes can lead to uneven road surfaces, increased vehicle vibration, and even traffic accidents. Furthermore, if the holes expand or collapse, they can directly threaten driving safety. 4. Existing technologies have structural flaws: Traditional temporary backfill devices often use a single-size design (such as fixed-diameter plugs or simple brackets), which are not compatible with core holes of varying depths and diameters. Frequent tool changes are required, resulting in low efficiency. Single fixing mechanism: Relying on a single bottom support or lateral friction fixation, these devices are prone to displacement under dynamic vehicle loads, environmental vibration, or freeze-thaw cycles, leading to backfill failure and even secondary collapse. 5. High operational complexity: Some devices require hydraulic equipment or specialized tools for dimensional adjustment, which is difficult to operate and time-consuming, making them difficult to meet the needs of emergency repairs or operations in confined spaces.

[0003] After coring, in order to ensure the smoothness of the road surface and the smooth progress of subsequent construction, it is necessary to backfill the coring hole after coring. However, the backfilling operation is not performed immediately after coring. Therefore, between coring and backfilling, a temporary backfilling device needs to be set up in the coring hole left after coring to avoid affecting the use of the road surface. The temporary backfilling device will be taken out and the backfilling operation will be carried out when the coring hole is actually backfilled. However, the existing temporary backfilling device has some problems in actual use, such as the poor adaptability of the temporary backfilling device to coring holes of different sizes and the inconvenience of operation. Therefore, it is of great practical significance to develop a temporary backfilling device after coring for highway construction that can effectively solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a temporary backfilling device after coring for highway construction, so as to solve the problems that the existing temporary backfilling device has poor adaptability to coring holes of different sizes and is not convenient to operate.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: A temporary backfilling device after coring for highway construction, including a shell, an adjustment component 1 and an adjustment component 2, the shell being a hollow cylinder, a threaded hole being opened in the middle of the upper end face of the shell, a plurality of through holes being opened on the lower end face of the shell, and a plurality of openings being evenly distributed horizontally along the circumferential direction on the outer wall of the shell, the adjustment component 1 being movably arranged in the shell, the upper end of the adjustment component 1 being threadedly connected to the shell, the lower end of the adjustment component being cooperated with the plurality of through holes, the adjustment component 2 being fixedly arranged in the shell and cooperating with the plurality of openings, and the adjustment component 1 being movably arranged in the adjustment component 2.

[0006] Furthermore, the adjustment component 1 includes an adjusting rod, a knob, a pressure ring, a fixed disk, a movable disk, multiple damping springs 3 and multiple fixed cones. The upper end of the outer wall of the adjusting rod is provided with a thread that cooperates with the threaded hole of the shell, the upper end of the adjusting rod is provided with a knob, the outer wall of the adjusting rod is provided with a pressure ring, the lower end of the adjusting rod is provided with a fixed disk, the lower end of the fixed disk is provided with a movable disk, multiple damping springs 3 are arranged between the fixed disk and the movable disk through damping, and multiple fixed cones are vertically provided at the lower end of the fixed disk. The lower ends of the multiple fixed cones slide through the movable disk. When in use, the lower ends of the multiple fixed cones respectively pass through the corresponding through holes at the lower end of the shell.

[0007] Furthermore, the second adjustment component includes a fixing ring, a sleeve, a plurality of arc-shaped fixing plates and a plurality of sliding units. The fixing ring is arranged in the shell, the sleeve is arranged on the fixing ring, and the sleeve and the fixing ring are coaxially arranged. The adjustment rod of the adjustment component one is movably arranged inside the sleeve and the fixing ring, and the plurality of sliding units are evenly slidably arranged on the fixing ring and the sleeve. The plurality of arc-shaped fixing plates are all slidably arranged on the fixing ring and are respectively fixedly connected to the corresponding sliding units. The plurality of arc-shaped fixing plates are respectively matched with the plurality of openings. When in use, the plurality of arc-shaped fixing plates respectively pass through the corresponding openings.

[0008] Furthermore, the upper end surface of the fixed ring is evenly distributed with multiple sliding grooves 1, and the outer wall of the sleeve is evenly distributed with multiple sliding grooves 2 vertically. The multiple sliding grooves 1 and the multiple sliding grooves 2 are respectively matched with the multiple sliding units.

[0009] Furthermore, the sliding unit includes a damping spring 1, a slider 1, a hinged rod, a slider 2, a damping spring 2 and a connecting rod. The slider 1 is slidingly arranged in the slide groove 1. The damping spring 1 is arranged between the slider 1 and the inner side wall of the slide groove 1 through damping. The slider 1 is fixedly connected to the arc-shaped fixed plate through the connecting rod. The slider 2 is slidingly arranged in the slide groove 2. A pressure plate is provided on the rear end surface of the slider 2, and the pressure plate is used in conjunction with the pressure ring. The damping spring 2 is arranged between the slider 2 and the inner bottom surface of the slide groove 2 through damping. One end of the hinged rod is hinged to the slider 1, and the other end of the hinged rod is hinged to the slider 2.

[0010] Furthermore, an anti-slip pad is provided on the outer side wall of the arc-shaped fixing plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention utilizes adjustment components 1 and 2 to achieve temporary backfilling of the core hole, thus preventing any disruption to road surface use. The fixing cone of adjustment component 1 can penetrate the bottom of the core hole to secure the temporary backfill device from below; the curved fixing plate of adjustment component 2 can expand outward to secure the temporary backfill device from the side.

[0012] 2. The present invention's adjustment components 1 and 2 can be adjusted based on the size of the coring hole, improving the adaptability of the temporary backfill device to coring holes of varying sizes. Rotating the adjustment rod changes the extension length of the fixed cone, while the sliding unit of adjustment component 2 changes the extent of the arc-shaped fixed plate's extension.

[0013] 3. The present invention is easy to operate. The adjustment components 1 and 2 can be adjusted by rotating the knob without complicated operating tools, thereby improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention Figure 2 ; Figure 3 This is the structural diagram of the adjustment component 2 Figure 1 ; Figure 4 This is the structural diagram of the adjustment component 2 Figure 2 ; Figure 5 This is the structural diagram of the adjustment component 2 Figure 3 ; Figure 6 This is a schematic diagram of the present invention in a non-use state; Figure 7 It is a schematic diagram of the use state of the present invention; Figure 8 It is a structural diagram of the regulating component one.

[0015] The names and reference numerals of the components in the above drawings are as follows: 1. Housing; 2. Adjustment component 1; 3. Arc-shaped fixing plate; 4. Fixing cone; 5. Knob; 6. Adjustment rod; 7. Opening; 8. Fixing ring; 9. Sleeve; 10. Slide groove 1; 11. Damping spring 1; 12. Slider 1; 13. Articulated rod; 14. Anti-slip pad; 15. Moving plate; 16. Damping spring 2; 17. Slider 2; 18. Slide groove 2; 19. Connecting rod; 20. Pressing piece; 21. Through hole; 22. Pressing ring; 23. Fixing plate; 24. Damping spring 3. DETAILED DESCRIPTION

[0016] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] Specific implementation: Figures 1-8 As shown, this embodiment discloses a temporary backfill device after coring for highway construction, including a shell 1, an adjusting component 2 and an adjusting component 2. The shell 1 is a hollow cylinder, a threaded hole is opened in the middle of the upper end face of the shell 1, a plurality of through holes 21 are opened on the lower end face of the shell 1, and a plurality of openings 7 are evenly distributed horizontally along the circumferential direction on the outer wall of the shell 1. The adjusting component 2 is movably arranged in the shell 1, the upper end of the adjusting component 2 is threadedly connected to the shell 1, and the lower end of the adjusting component 2 is cooperated with the plurality of through holes 21. The adjusting component 2 is fixedly arranged in the shell 1 and cooperates with the plurality of openings 7. The adjusting component 2 is movably arranged in the adjusting component 2.

[0018] Furthermore, the adjustment component 2 includes an adjusting rod 6, a knob 5, a pressure ring 22, a fixed disk 23, a movable disk 15, multiple damping springs 3 24 and multiple fixed cones 4. The upper end of the outer wall of the adjusting rod 6 is provided with a thread for use with the threaded hole of the shell 1, the upper end of the adjusting rod 6 is provided with a knob 5, the outer wall of the adjusting rod 6 is provided with a pressure ring 22, the lower end of the adjusting rod 6 is provided with a fixed disk 23, the lower end of the fixed disk 23 is provided with a movable disk 15, multiple damping springs 3 24 are arranged between the fixed disk 23 and the movable disk 15 through damping, and multiple fixed cones 4 are vertically provided at the lower end of the fixed disk 23. The lower ends of the multiple fixed cones 4 slide out of the movable disk 15. When in use, the lower ends of the multiple fixed cones 4 respectively pass through the through holes 21 corresponding to the lower end of the shell 1.

[0019] Furthermore, the adjustment component 2 includes a fixing ring 8, a sleeve 9, a plurality of arc-shaped fixing plates 3 and a plurality of sliding units. The fixing ring 8 is arranged in the shell 1, the sleeve 9 is arranged on the fixing ring 8, and the sleeve 9 is coaxially arranged with the fixing ring 8. The adjustment rod 6 of the adjustment component 1 2 is movably arranged inside the sleeve 9 and the fixing ring 8, and the plurality of sliding units are evenly slidably arranged on the fixing ring 8 and the sleeve 9. The plurality of arc-shaped fixing plates 3 are all slidably arranged on the fixing ring 8 and are respectively fixedly connected to the corresponding sliding units. The plurality of arc-shaped fixing plates 8 are respectively matched with the plurality of openings 7. When in use, the plurality of arc-shaped fixing plates 8 respectively pass through the corresponding openings 7.

[0020] Furthermore, the upper end surface of the fixing ring 8 is evenly distributed with multiple sliding grooves 10, and the outer wall of the sleeve 9 is evenly distributed with multiple sliding grooves 18 vertically. The multiple sliding grooves 10 and the multiple sliding grooves 18 are respectively matched with the multiple sliding units.

[0021] Furthermore, the sliding unit includes a damping spring 11, a slider 12, a hinged rod 13, a slider 2 17, a damping spring 2 16 and a connecting rod 19. The slider 12 is slidably arranged in the slide groove 10. The damping spring 11 is arranged between the slider 12 and the inner side wall of the slide groove 10 through damping. The slider 12 is fixedly connected to the arc-shaped fixed plate 3 through the connecting rod 19. The slider 2 17 is slidably arranged in the slide groove 2 18. A pressure plate 20 is provided on the rear end surface of the slider 2 17. The pressure plate 20 is used in conjunction with the pressure ring 22. The damping spring 2 16 is arranged between the slider 2 17 and the inner bottom surface of the slide groove 2 18 through damping. One end of the hinged rod 13 is hinged to the slider 12, and the other end of the hinged rod 13 is hinged to the slider 2 17.

[0022] Furthermore, an anti-slip pad 14 is provided on the outer side wall of the arc-shaped fixing plate 3 .

[0023] How it works The working principle of the present invention is as follows: by rotating the knob 5 of the adjustment component 1, the adjustment rod 6 moves up and down within the housing 1, thereby driving the fixed disk 23, the movable disk 15, and the fixed cone 4 to move up and down. The fixed cone 4 passes through the through hole 21 at the lower end of the housing 1 and penetrates into the bottom of the coring hole, thereby limiting and fixing the temporary backfill device from the bottom of the coring hole. At the same time, the up and down movement of the adjustment rod 6 causes the pressure ring 22 to squeeze the slider 2 17 of the adjustment component 2. Through the action of the hinged rod 13, the slider 12 slides within the slide groove 10, thereby driving the arc-shaped fixed plate 3 to expand outward. The arc-shaped fixed plate 3 passes through the opening 7 of the housing 1 and limits and fixes the temporary backfill device from the side wall of the coring hole.

[0024] Working process The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings: Preparation: Place the temporary backfill device of the present invention above the core hole so that the axis of the shell 1 coincides with the axis of the core hole, and place the temporary backfill device in the core hole.

[0025] Adjust the length of the fixed cone 4: Rotate the knob 5, which rotates the adjustment rod 6. Because the upper end of the outer wall of the adjustment rod 6 is threaded for engagement with the threaded hole in the housing 1, the adjustment rod 6 moves up and down along the axis as it rotates. As the adjustment rod 6 moves downward, the fixed disc 23, the movable disc 15, and the fixed cone 4 also move downward. The lower ends of the multiple fixed cones 4 pass through the corresponding through-holes 21 at the lower end of the housing 1 and penetrate into the bottom of the coring hole, completing the securement of the temporary backfill device from the bottom of the coring hole.

[0026] Fixing the side wall of the core hole: When the knob 5 is rotated to move the adjustment rod 6 downward, the pressure ring 22 will press the pressure plate 20 downward and then squeeze the slider 2 17. The slider 2 17 moves downward in the slide groove 2 18, and the damping spring 2 16 is compressed. Since one end of the hinged rod 13 is hinged to the slider 12 and the other end is hinged to the slider 2 17, the downward movement of the slider 2 17 will cause the hinged rod 13 to push the slider 12 to slide outward in the slide groove 10, and the damping spring 11 is stretched. The slider 12 drives the arc-shaped fixing plate 3 to expand outward through the connecting rod 19. Multiple arc-shaped fixing plates 3 respectively pass through the corresponding openings 7 to complete the fixation of the temporary backfill device from the side of the core hole. The anti-slip pad 14 on the outer wall of the arc-shaped fixing plate 3 can increase the friction with the side wall of the core hole and improve the fixing effect.

[0027] When actual backfilling operation is required, the temporary backfilling device is removed from the core hole, the knob 5 is rotated in the opposite direction, the adjusting rod 6 moves upward, the fixing cone 4 and the arc-shaped fixing plate 3 are retracted, and the temporary backfilling device is removed from the core hole. After the removal work is completed, the actual backfilling operation of the core hole is then carried out.

[0028] The temporary backfilling device after coring for highway construction of the present invention realizes the arrangement of a temporary backfilling device between coring and backfilling operations through reasonable structural design, so as not to affect the use of the road surface. At the same time, the temporary backfilling device after coring for highway construction has good adaptability and easy operation, and can meet the needs of temporary backfilling after coring in highway construction.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0030] In addition, it should be understood that although this specification is described in terms of 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 temporary backfill device after coring for highway construction, characterized by: The invention comprises a shell (1), an adjusting component 1 (2) and an adjusting component 2, wherein the shell (1) is a hollow cylinder, a threaded hole is opened in the middle of the upper end surface of the shell (1), a plurality of through holes (21) are opened on the lower end surface of the shell (1), and a plurality of openings (7) are evenly distributed along the circumferential direction on the outer wall of the shell (1). The adjusting component 1 (2) is movably arranged in the shell (1), the upper end of the adjusting component 1 (2) is threadedly connected to the shell (1), the lower end of the adjusting component 1 (2) is matched with the plurality of through holes (21), the adjusting component 2 is fixedly arranged in the shell (1) and matched with the plurality of openings (7), and the adjusting component 1 (2) is movably arranged in the adjusting component 2.

2. A temporary backfill device after coring for highway construction according to claim 1, characterized in that: The adjusting component (2) comprises an adjusting rod (6), a knob (5), a pressure ring (22), a fixed disk (23), a movable disk (15), a plurality of damping springs (24) and a plurality of fixed cones (4). The upper end of the outer wall of the adjusting rod (6) is provided with a thread for use with a threaded hole of the shell (1). The upper end of the adjusting rod (6) is provided with a knob (5). The outer wall of the adjusting rod (6) is provided with a pressure ring (22). The lower end of the adjusting rod (6) is provided with a fixed disk (23). The lower end of the fixed disk (23) is provided with a movable disk (15). The plurality of damping springs (24) are arranged between the fixed disk (23) and the movable disk (15) through damping. The lower end of the fixed disk (23) is vertically provided with a plurality of fixed cones (4). The lower ends of the plurality of fixed cones (4) slide through the movable disk (15). When in use, the lower ends of the plurality of fixed cones (4) respectively pass through the corresponding through holes (21) at the lower end of the shell (1).

3. A temporary backfill device after coring for highway construction according to claim 2, characterized in that: The second adjustment component comprises a fixing ring (8), a sleeve (9), a plurality of arc-shaped fixing plates (3) and a plurality of sliding units. The fixing ring (8) is arranged in the housing (1), the sleeve (9) is arranged on the fixing ring (8), and the sleeve (9) and the fixing ring (8) are arranged coaxially. The adjustment rod (6) of the first adjustment component (2) is movably arranged inside the sleeve (9) and the fixing ring (8). The plurality of sliding units are uniformly slidably arranged on the fixing ring (8) and the sleeve (9). The plurality of arc-shaped fixing plates (3) are all slidably arranged on the fixing ring (8) and are respectively fixedly connected to the corresponding sliding units. The plurality of arc-shaped fixing plates (8) are respectively matched with the plurality of openings (7). When in use, the plurality of arc-shaped fixing plates (8) respectively pass through the corresponding openings (7).

4. A temporary backfill device after coring for highway construction according to claim 3, characterized in that: The upper end surface of the fixed ring (8) is uniformly provided with a plurality of slide grooves 1 (10), and the outer wall of the sleeve (9) is uniformly provided with a plurality of slide grooves 2 (18) vertically. The plurality of slide grooves 1 (10) and the plurality of slide grooves 2 (18) are respectively arranged in a one-to-one correspondence with the plurality of sliding units.

5. A temporary backfill device after coring for highway construction according to claim 4, characterized in that: The sliding unit includes a damping spring 1 (11), a slider 1 (12), a hinge rod (13), a slider 2 (17), a damping spring 2 (16) and a connecting rod (19). The slider 1 (12) is slidably arranged in the slide groove 1 (10). The damping spring 1 (11) is arranged between the slider 1 (12) and the inner side wall of the slide groove 1 (10) through damping. The slider 1 (12) is fixedly connected to the arc-shaped fixed plate (3) through the connecting rod (19). The slider 2 (17) is slidably arranged in the slide groove 2 (18). A pressing plate (20) is provided on the rear end surface of the slider 2 (17). The pressing plate (20) is used in conjunction with the pressing ring (22). The damping spring 2 (16) is arranged between the slider 2 (17) and the inner bottom surface of the slide groove 2 (18) through damping. One end of the hinge rod (13) is hinged to the slider 1 (12), and the other end of the hinge rod (13) is hinged to the slider 2 (17).

6. A temporary backfill device after coring for highway construction according to claim 5, characterized in that: An anti-slip pad (14) is provided on the outer side wall of the arc-shaped fixing plate (3).

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