Roadbed backfill construction thickness control device

Abstract

The utility model provides a roadbed backfill construction thickness control device, which relates to the technical field of auxiliary backfill equipment, and comprises a main rod, which is vertically arranged, and scale marks are arranged on a rod body; the movable disc is arranged on the outer side of the main rod in a sleeving mode, can vertically slide along the axis of the main rod and is fixed to the target scale position of the vertical rod through a positioning assembly; and the protective shell is rotatably connected to the outer side of the movable disc through a bearing, at least one set of infrared ray equipment is arranged on the protective shell, and the infrared ray equipment can emit detection light beams in the horizontal direction to assist in controlling the roadbed backfill thickness and ensure that the backfill thickness of each layer meets the design requirement. The infrared ray equipment can scan the circumferential area by 360 degrees through the rotatable design of the protective shell, compared with traditional single-point laser ray detection, the coverage range is wider, operation is more flexible, the device is particularly suitable for a large-area backfill scene, and the construction efficiency and quality can be remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary backfilling equipment technology, and in particular to a roadbed backfilling construction thickness control device. Background Technology

[0002] In road construction, subgrade backfilling is a crucial process that determines the bearing capacity and stability of the subgrade. During layered backfilling, the thickness of each layer directly affects the compaction effect and overall quality of the subgrade: insufficient thickness may lead to substandard compaction, causing settlement and deformation; excessive thickness will prevent the effective transfer of compaction mechanical loads, resulting in the hidden danger of "hardened surface and loose interior".

[0003] Traditional methods for controlling the thickness of roadbed backfill mainly rely on manual operation, using ruler measurements or visual estimation based on experience, which can easily lead to insufficient accuracy. To address this, a thickness control fixture for roadbed filling, such as the one described in patent application number 202421449790.7, has been developed. This fixture uses a base to fix a main rod, on which a sliding sleeve is mounted, and an infrared ray device is installed. However, in this structure, the infrared ray device is fixed at a single point on the sleeve and cannot be rotated to adjust the detection direction. It can only cover the perimeter area of ​​the main rod in a single direction. When it is necessary to detect the backfill thickness in different directions, the entire fixture must be moved, significantly reducing construction efficiency. Utility Model Content

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes an exosome extraction device.

[0005] The technical solution to the technical problem solved by this utility model is as follows:

[0006] This utility model proposes a roadbed backfill thickness control device, including a main rod, which is vertically arranged and has scale lines on the rod body; a movable disc, which is sleeved on the outside of the main rod and can slide vertically along the axis of the main rod, and the movable disc is fixed to the target scale position of the vertical rod by a positioning component; and a protective shell, which is rotatably connected to the outside of the movable disc by a bearing, and the protective shell is provided with at least one set of infrared ray devices, which can emit detection beams in the horizontal direction to assist in controlling the roadbed backfill thickness.

[0007] Preferably, the movable disc has a hollow structure, with an internal space for accommodating the positioning component and a through hole for the main rod to pass through.

[0008] Preferably, the positioning component includes several sets of claws fixed in the accommodating space. The claws are arranged in a circular array around the axis of the movable disk and are located on the outer periphery of the perforation. The claws are inclined outward. Above the several sets of claws, a pressure cylinder that can move vertically along the axis of the main rod is provided. The inner wall of the pressure cylinder can abut against the claws, squeezing the several sets of claws to move synchronously towards the center, clamping the main rod inside, and positioning the movable disk on the main rod.

[0009] Preferably, the upper part of the perforation has an internal thread section, and the outer side of the pressure cylinder has an external thread section. The pressure cylinder can be threadedly connected to the internal thread section on the perforation through the external thread section, and the pressure cylinder is driven to move downward under the helical side effect to achieve contact with the claw.

[0010] Preferably, the top of the claw has an outwardly extending wedge-shaped block, and the upper surface of the wedge-shaped block is an inclined guide surface; the bottom of the pressure cylinder has a guide notch, and the inner side of the guide notch has an inclined blade angle structure; when the pressure cylinder moves down, the annular notch and the surface opposite the wedge-shaped block form a sliding fit, forcing the claw to retract inward.

[0011] Preferably, a rotary handle is fixedly connected above the pressure cylinder, and the rotary handle has a polygonal structure.

[0012] Preferably, the movable plate has at least one set of placement slots, and the infrared ray device is placed inside the placement slots.

[0013] Preferably, the bottom of the main rod is provided with a square support block, and each of its four side walls is hinged with a rotatable base plate. Each base plate can rotate around the hinge axis within the range of 0°-90° to form a foldable support structure.

[0014] The above technical solution has the following advantages or beneficial effects:

[0015] 1. This utility model employs a structure that combines the main rod's scale lines with an infrared ray device to achieve quantitative control of backfill thickness, thereby avoiding human error and ensuring that the thickness of each backfill layer meets design requirements. The rotatable design of the protective shell allows the infrared ray device to scan the circumferential area 360°, providing a wider coverage and more flexible operation compared to traditional single-point laser ray detection. It is particularly suitable for large-area backfilling scenarios, significantly improving construction efficiency and quality.

[0016] 2. In the positioning component disclosed in this utility model, the clamping and releasing of the jaws are achieved by the up-and-down movement of the pressure cylinder, eliminating the need for additional tools for fixing. Positioning and adjustment can be completed with one hand, significantly improving preparation efficiency. This inclined and elastic jaw can adapt to main rods of different diameters, and the clamping force is uniform, effectively avoiding problems such as damage to the main rod surface caused by hard compression.

[0017] 3. In this utility model, the hinged base plate design allows it to fold towards the center after backfilling, significantly reducing the contact area between the base plate and the backfill surface. This transforms the "surface damage" caused by pulling out the traditional base plate into "point damage," greatly reducing the time required for subsequent repairs. Attached Figure Description

[0018] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0019] Figure 1 This is a front view of the present invention in its construction state;

[0020] Figure 2 for Figure 1 Enlarged view of section A;

[0021] Figure 3 This is a three-dimensional structural diagram of the unfolded bottom plate of the main rod in this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the retracted bottom plate of the main rod in this utility model;

[0023] Figure 5 This is a schematic diagram of the semi-sectional three-dimensional structure inside the shell and the movable disk.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Main rod; 2. Scale line; 3. Movable disc; 4. Protective shell; 5. Bearing; 6. Infrared ray device; 7. Accommodation space; 8. Perforation; 9. Claw; 10. Pressure cylinder; 11. Internal thread section; 12. External thread section; 13. Wedge block; 14. Guide notch; 15. Tightening handle; 16. Placement slot; 17. Base plate. Detailed Implementation

[0026] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0028] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] like Figure 1 or Figure 5 As shown in the figure, this embodiment proposes a roadbed backfill thickness control device, including a main rod 1, which is vertically arranged and has scale lines 2 on its body. A movable disk 3 is also sleeved on the outside of the main rod 1. The movable disk 3 can slide vertically along the axis of the main rod 1 and is fixed to the target scale position of the vertical rod by a positioning component. It also includes a protective shell 4, which is rotatably connected to the outside of the movable disk 3 by a bearing 5. At least one set of infrared ray devices 6 are provided on the protective shell 4. The infrared ray devices 6 can detect the speed of light in the horizontal direction to assist in controlling the thickness of the roadbed backfill.

[0030] In new roadbed construction and large-scale site leveling projects, precise control of backfill thickness is crucial to ensuring project quality. Traditional manual visual inspection methods suffer from poor accuracy and cumbersome adjustments. This utility model's roadbed backfill thickness control device provides an efficient solution. The specific construction steps are as follows:

[0031] S1: During construction, insert the main rod 1 vertically into the design reference point to ensure that the main rod 1 is perpendicular to the base surface. According to the designed backfill thickness, slide the movable disc 3 along the axis of the main rod 1 to position it at the target height corresponding to the scale line 2 of the main rod 1. Fix the position of the movable disc 3 and the protective shell 4 through the positioning component.

[0032] S2: Turn on the infrared ray device 6 and adjust its horizontal emission angle so that the infrared rays are consistent with the design elevation of the backfill surface. Before construction, the protective shell 4 can be rotated appropriately to make the infrared ray device 6 emit beams in the horizontal direction to detect the height difference between the current subgrade surface and the backfill thickness, so as to preliminarily determine the required backfill volume.

[0033] S3: Lay backfill soil according to the designed layer thickness. After each layer is laid, rotate the protective shell 4 360° and use infrared to scan the circumferential backfill surface. If the beam is blocked by the soil, it means that the backfill thickness exceeds the standard. If there is a gap between the backfill surface and the beam, it means that the backfill thickness is insufficient. Adjustment is made by adding soil or shoveling out the soil.

[0034] S4: After completing the thickness detection and adjustment of the first layer of backfill, repeat the above steps to carry out the next layer of backfill construction until the total design thickness is reached;

[0035] S5: After construction is completed, loosen the positioning components, remove the main rod 1 and the protective shell 4, and clean the surface of the device of dirt and other debris.

[0036] In this design, the structure of the main rod 1, scale line 2, and infrared ray device 6 enables quantitative control of the backfill thickness, avoiding human error and ensuring that the thickness of each backfill layer meets design requirements. The rotatable design of the protective shell 4 allows the infrared ray device 6 to scan the circumferential area 360°, providing a wider coverage and more flexible operation compared to traditional single-point laser ray detection. It is especially suitable for large-area backfilling scenarios, significantly improving construction efficiency and quality.

[0037] In some embodiments, the movable disc 3 has a hollow structure, with an internal receiving space 7 for accommodating the positioning component and a through hole 8 for the main rod 1 to pass through. The hollow structure reduces the overall weight and makes it easier for the operator to slide and adjust it along the main rod 1; at the same time, the positioning component is enclosed inside the movable disc 3, which can effectively prevent damage to the components caused by collisions during construction, thereby improving the overall durability of the device.

[0038] Further reference Figure 2 or Figure 5 In this embodiment, the positioning component includes several sets of claws 9 fixed to the accommodating space 7. The claws 9 are arranged in a circular array around the axis of the movable disk 3, located on the outer periphery of the perforation 8. The claws 9 are preferably made of elastic plastic and designed to tilt outwards. Above the sets of claws 9, a pressure cylinder 10 is provided that can move vertically along the axis of the main rod 1. The inner wall of the pressure cylinder 10 can abut against the claws 9. When the pressure cylinder 10 moves downwards, it can squeeze the sets of claws 9 to move and contract synchronously towards the center, thereby clamping the main rod 1 inside and positioning the movable disk 3 on the main rod 1.

[0039] In this design, the clamping and releasing of the chuck 9 can be achieved by moving the pressure cylinder 10 up and down, without the need for additional tools. Positioning and adjustment can be completed with one hand, which can greatly improve preparation efficiency. This inclined and flexible chuck 9 can adapt to main rods 1 of different diameters, and the clamping force is uniform, which can effectively avoid problems such as damage to the surface of the main rod 1 caused by hard compression.

[0040] Furthermore, in the hollow structure design of the movable disc 3, two through holes 8 are formed inside, with the inner diameter of the upper through hole 8 being larger than that of the lower through hole 8. This dimensional difference design provides sufficient space for the operation of the upper pressure cylinder 10. Specifically, the inner wall of the upper through hole 8 has an internal thread section 11, and the outer wall of the pressure cylinder 10 has an external thread section 12. The pressure cylinder 10 can be threadedly connected to the internal thread section 11 on the through hole 8 through the external thread section 12. Under the helical effect, the pressure cylinder 10 is driven to move downward, achieving contact between its inner wall and the chuck 9. In this design, the threaded drive has good self-locking properties and precise displacement control capabilities. The operator can control the downward stroke by turning the pressure cylinder 10, thereby precisely adjusting the clamping force of the chuck 9 to ensure the accuracy and stability of the movable disc 3's positioning on the main rod 1. This threaded connection method makes the installation, disassembly, and replacement of the pressure cylinder 10 easier, reducing the overall maintenance and cleaning difficulty.

[0041] Furthermore, the top of the chuck 9 has an outwardly extending wedge-shaped block 13, the upper surface of which is an inclined guide surface; the bottom of the pressure cylinder 10 has a guide notch 14, the inner side of which has an inclined blade structure; when the pressure cylinder 10 moves downward, the annular notch and the surface opposite to the wedge-shaped block 13 form a sliding engagement, forcing the chuck 9 to retract inward. This design provides a clear guide path for the downward movement of the pressure cylinder 10 through the inclined surface of the wedge-shaped block 13, avoiding problems such as jamming or displacement of the chuck 9 due to uneven force, and enabling more precise and efficient pressure on the chuck 9.

[0042] A rotary handle 15 is fixedly connected above the pressure cylinder 10. The rotary handle 15 is located above the movable plate 3 and has a polygonal structure. The design of the rotary handle 15 makes it easy for the operator to hold and turn it directly. Its polygonal structure can effectively prevent slippage and other phenomena.

[0043] In some embodiments, the side wall of the movable disk 3 has at least one set of placement slots 16, and the infrared ray device 6 is placed inside the placement slot 16. The design of the placement slots 16 ensures that the infrared ray device 6 is enclosed within them without obstructing the emitted beam, reducing its exposed area and effectively avoiding direct impacts and other problems, thus lowering the risk of damage. This integrated design reduces the space occupied, making the overall structure of the device more compact.

[0044] Traditionally, vertical fixation of the main pole 1 relies heavily on a large-area base plate 17. However, after the roadbed filling is completed, directly pulling out the base plate 17 can easily cause large-area damage to the backfill surface, requiring rework and repair. Therefore, referring to... Figures 1 to 4 In this embodiment, a square support block is provided at the bottom of the main rod 1. The four side walls of the support block are respectively hinged to a rotatable base plate 17. Each base plate 17 can rotate around the hinge axis within the range of 0°-90° to form a foldable support structure.

[0045] Before construction, the base plate 17 is unfolded outward to 90°, horizontally overlapping the base surface. A small amount of soil is then initially laid on top of the base plate 17, using its own weight to compact it and ensure the vertical stability of the main pole 1. After the roadbed backfilling is completed, the main pole 1 is pulled upward. Under the lifting force, the hinged base plate 17 simultaneously contracts and folds towards the center of the main pole 1, significantly reducing the contact area between the base plate 17 and the backfill surface, avoiding tearing of the soil layer when pulling out a traditional large-area base plate 17. Only the small localized areas left after the support block is pulled out need to be filled in layers to restore the integrity of the roadbed. This folding base plate 17, by reducing the contact area through contraction, transforms the "surface damage" caused by pulling out a traditional large-area base plate 17 into "point damage," significantly reducing subsequent repair time.

[0046] Although the specific embodiments of the utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the utility model. Based on the technical solution of the utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the utility model.

Claims

1. A device for controlling the thickness of roadbed backfill construction, characterized in that, include: The main rod (1) is set vertically, and scale lines (2) are provided on the rod body. The movable disc (3) is sleeved on the outside of the main rod (1) and can slide vertically along the axis of the main rod (1). The movable disc (3) is fixed to the target scale position of the vertical rod by the positioning component. The protective shell (4) is rotatably connected to the outside of the movable disk (3) via a bearing (5). At least one set of infrared ray devices (6) is provided on the protective shell (4). The infrared ray devices (6) can emit detection beams in the horizontal direction to assist in controlling the thickness of the roadbed backfill.

2. The roadbed backfill thickness control device according to claim 1, characterized in that, The movable disc (3) has a hollow structure, with an internal space (7) for accommodating the positioning component and a perforation (8) for the main rod (1) to pass through.

3. The roadbed backfill thickness control device according to claim 2, characterized in that, The positioning component includes several sets of claws (9) fixed in the accommodating space (7). The claws (9) are arranged in a ring array around the axis of the movable disk (3) and are located on the outer periphery of the perforation (8). The claws (9) are inclined outward. Above the several sets of claws (9) is a pressure cylinder (10) that can move vertically along the axis of the main rod (1). The inner wall of the pressure cylinder (10) can abut against the claws (9) to squeeze the several sets of claws (9) to move synchronously towards the center, clamp the main rod (1) inside, and position the movable disk (3) on the main rod (1).

4. The roadbed backfill thickness control device according to claim 3, characterized in that, The upper part of the perforation (8) has an internal thread section (11), and the outer side of the pressure cylinder (10) has an external thread section (12). The pressure cylinder (10) can be threadedly connected to the internal thread section (11) on the perforation (8) through the external thread section (12), and the pressure cylinder (10) is driven to move down under the side effect of the spiral to achieve contact with the claw (9).

5. The roadbed backfill thickness control device according to claim 3, characterized in that, The top of the claw (9) has an outwardly extending wedge (13), and the upper surface of the wedge (13) is an inclined guide surface; the bottom of the pressure cylinder (10) has a guide notch (14), and the inner side of the guide notch (14) has an inclined blade angle structure; when the pressure cylinder (10) moves down, the annular notch and the surface opposite to the wedge (13) form a sliding fit, forcing the claw (9) to retract inward.

6. The roadbed backfill thickness control device according to claim 3, characterized in that, A screw handle (15) is fixedly connected above the pressure cylinder (10), and the screw handle (15) has a polygonal structure.

7. The roadbed backfill thickness control device according to claim 1, characterized in that, The movable plate (3) has at least one set of placement slots (16), and the infrared ray device (6) is placed inside the placement slots (16).

8. The roadbed backfill thickness control device according to claim 1, characterized in that, The main rod (1) has a square support block at its bottom, and its four side walls are respectively hinged with a rotatable base plate (17). Each base plate (17) can rotate around the hinge axis within the range of 0°-90° to form a foldable support structure.

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