Roadbed thickness control device

Abstract

The utility model provides a roadbed thickness control device which comprises a base, a stand column is fixedly arranged at the top of the base, a sliding block is movably arranged in the stand column through an adjusting screw rod, fixing blocks are symmetrically and fixedly arranged at one end of the sliding block, and a transverse rod is movably installed between the fixing blocks on the two sides through a torsion spring rotating shaft. The pointer and the bottom of the transverse rod are located in the same horizontal plane, the scale indicated by the pointer is consistent with the height of the bottom of the transverse rod, so that the height of the roadbed is consistent, one end of the transverse rod is inserted into the limiting groove by adjusting the sliding block and folding the transverse rod, the transverse rod is conveniently limited, and therefore the stability of the transverse rod is improved; the size of the device can be conveniently reduced, and the device can be conveniently folded and stored; the stand column can be conveniently adjusted to be vertical through the first bubble level, the cross rod can be conveniently adjusted to be horizontal through the second bubble level, and therefore roadbed construction is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of subgrade thickness control, and particularly relates to a subgrade thickness control device. Background Technique

[0002] The Chinese utility model patent with the publication number of CN219914251U proposes a subgrade construction thickness control device, including a mounting plate. A vertical plate is fixedly connected to the upper surface of the mounting plate. A sliding groove is formed in the right side surface of the vertical plate. A track opening is formed in the inner side wall of the sliding groove. A sliding block is clamped in the inner wall of the sliding groove. An infrared horizontal probe is fixedly connected to the right side surface of the sliding block. A lifting block is fixedly connected to the left end of the sliding block. The left end of the lifting block penetrates through the track opening and extends to the left side of the vertical plate.

[0003] In the above technical solution, one end of the horizontal wire on the sliding block, the infrared horizontal probe and the indicating arrow are not in the same horizontal plane. Therefore, the actual position where the infrared horizontal probe irradiates on the benchmark is higher than the position of the horizontal marking line, resulting in inconsistent subgrade thickness, and it is not convenient to store the benchmark and the like, with low practicability.

[0004] Therefore, the utility model provides a subgrade thickness control device. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a subgrade thickness control device to solve the problems raised in the above background technique. The pointer of the utility model and the bottom of the cross bar are in the same horizontal plane, and the scale indicated by the pointer is consistent with the height of the bottom of the cross bar, so as to make the height of the subgrade consistent. And by adjusting the slider and folding the cross bar, it is convenient to reduce the volume of the device and facilitate folding and storage of the device.

[0006] In order to achieve the above purpose, the utility model is realized by the following technical solutions: A subgrade thickness control device includes a base. A column is fixedly arranged on the top of the base. A slider is movably arranged in the column through an adjusting screw. Fixing blocks are symmetrically and fixedly arranged at one end of the slider. A cross bar is movably installed between the two fixing blocks through a torsion spring rotating shaft. A pointer is fixedly arranged on one side of the front end of the fixing block. The pointer and the bottom of the cross bar are in the same horizontal plane. A limiting groove is formed on the top of the base corresponding to one side of the column.

[0007] Further, the column is in a "U" shape, and the adjusting screw is limited and rotatably installed in the column.

[0008] Further, the slider is screwed and installed on the adjusting screw through a screw hole formed in its interior, and the slider is slidably installed between the two ends of the column.

[0009] Further, scales are provided on the front and rear end faces of the column, and the pointer is arranged on one side of the scales.

[0010] Further, a knob is fixedly arranged at the top end of the adjusting screw rod, and a first bubble level is fixedly arranged on the top of the knob.

[0011] Further, a fastening bolt is screwed inside one end of the fixing block, and one end of the fastening bolt is in close contact with the outer wall of the cross bar.

[0012] Further, a second bubble level is fixedly arranged on the top of the cross bar, and one end of the cross bar is clamped and installed inside the limiting groove.

[0013] Further, an elastic rubber pad is fixedly arranged at the bottom of the base, and fixing holes are formed at the four corner positions inside the elastic rubber pad and the base.

[0014] The beneficial effects of the present utility model: In a roadbed thickness control device of the present utility model, the pointer and the bottom of the cross bar are in the same horizontal plane, and the scale indicated by the pointer is consistent with the bottom height of the cross bar, so that the height of the roadbed is kept consistent. And by adjusting the slider and folding the cross bar, one end of the cross bar is inserted into the inside of the limiting groove, which is convenient for limiting the cross bar, thereby improving the stability of the cross bar, facilitating the reduction of the volume of the device, and facilitating the folding and storage of the device; the column can be conveniently adjusted to be vertical through the first bubble level, and the cross bar can be conveniently adjusted to be horizontal through the second bubble level, thus facilitating the construction of the roadbed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural diagram of a roadbed thickness control device of the present utility model;

[0016] Figure 2 is a front view sectional view of a roadbed thickness control device of the present utility model;

[0017] Figure 3 is a folding sectional view of a roadbed thickness control device of the present utility model;

[0018] Figure 4 is a structural diagram of a slider of a roadbed thickness control device of the present utility model;

[0019] In the figure: 1. Base; 2. Elastic rubber pad; 3. Column; 4. Adjusting screw rod; 5. Scale; 6. Slider; 7. Fixing block; 8. Fastening bolt; 9. Cross bar; 10. Pointer; 11. First bubble level; 12. Second bubble level; 13. Limiting groove; 14. Fixing hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: a subgrade thickness control device, including a base 1, a column 3 is fixedly arranged on the top of the base 1, a slider 6 is movably arranged inside the column 3 through an adjusting screw 4, a fixed block 7 is symmetrically and fixedly arranged at one end of the slider 6, a cross bar 9 is movably installed between the two fixed blocks 7 through a torsion spring rotating shaft, a pointer 10 is fixedly arranged on one side of the front end of the fixed block 7, and the pointer 10 and the bottom of the cross bar 9 are in the same horizontal plane. A limit groove 13 is formed on the top of the base 1 corresponding to one side of the column 3. The pointer 10 of the device and the bottom of the cross bar 9 are in the same horizontal plane, so that the bottom height of the cross bar 9 is kept consistent with the scale 5 indicated by the pointer 10, thereby making the height of the subgrade consistent and facilitating the construction of the subgrade.

[0022] In this embodiment, the column 3 is in a "U" shape, the adjusting screw 4 is limited and rotatably installed inside the column 3, the slider 6 is screwed and installed on the adjusting screw 4 through a screw hole formed inside it, the slider 6 is slidably installed between the two ends of the column 3, scales 5 are arranged on the front and rear end faces of the column 3, and the pointer 10 is arranged on one side of the scale 5. By rotating the adjusting screw 4, the slider 6 can be driven to move up and down, and the slider 6 drives the pointer 10 to indicate the corresponding scale 5, which is convenient to adjust the height of the cross bar 9 according to the design requirements, so as to control the subgrade thickness.

[0023] In this embodiment, a knob is fixedly arranged at the top end of the adjusting screw 4, and a first bubble level 11 is fixedly arranged on the top of the knob. It is convenient to adjust the column 3 to a vertical state through the first bubble level 11.

[0024] In this embodiment, a fastening bolt 8 is screwed and arranged inside one end of the fixed block 7, one end of the fastening bolt 8 is in close contact with the outer wall of the cross bar 9, a second bubble level 12 is fixedly arranged on the top of the cross bar 9, and one end of the cross bar 9 is clamped and installed inside the limit groove 13. The cross bar 9 can be extruded through the fastening bolt 8, thereby improving the stability of the cross bar 9. It is convenient to adjust the cross bar 9 to be horizontal through the second bubble level 12, which is convenient for subsequent control of the subgrade thickness.

[0025] In this embodiment, an elastic rubber pad 2 is fixedly arranged at the bottom of the base 1, and fixing holes 14 are formed at the four corner positions inside the elastic rubber pad 2 and the base 1. By arranging the fixing holes 14 and the elastic rubber pad 2, the levelness of the base 1 can be adjusted according to the tightness of the bolts, which is convenient for subsequent control of the subgrade thickness.

[0026] When using this subgrade thickness control device, move the device to the designated position of the subgrade, and place the base 1 through the elastic rubber pad 2. Install bolts etc. inside the fixing hole 14. As the bolt rotates, the elastic rubber pad 2 can be squeezed through the base 1. Observe the first bubble level 11 and adjust the base 1 to be horizontal, while the column 3 remains vertical. According to the designed thickness of the subgrade, rotate the knob. The knob drives the adjusting screw 4 to rotate between the two ends of the column 3. The adjusting screw 4 drives the slider 6 to move up and down through screwing, and the slider 6 drives the cross bar 9 and the pointer 10 to move through the fixing block 7. The cross bar 9 rotates upward under the torque of the torsion spring rotating shaft, and move the pointer 10 to the position of the indicating scale 5. Adjust the cross bar 9 to be horizontal according to the second bubble level 12. Rotate the fastening bolt 8, and the fastening bolt 8 can squeeze the cross bar 9, thereby fixing the cross bar 9 and improving the stability of the cross bar 9. The pointer 10 and the bottom of the cross bar 9 are in the same horizontal plane, and the scale 5 indicated by the pointer 10 is consistent with the height of the bottom of the cross bar 9, so that the height of the subgrade remains consistent. Lay the subgrade at the bottom of the cross bar 9 and make it in contact with the bottom; after the subgrade is laid, rotate the cross bar 9 reversely through the torsion spring rotating shaft to adjust the cross bar 9 to a vertical state. Drive the slider 6 to descend through the knob and the adjusting screw 4. The slider 6 drives the cross bar 9 to descend, and insert the bottom end of the cross bar 9 into the inside of the limiting groove 13, which is convenient for limiting the cross bar 9, convenient for reducing the volume of the device, and convenient for folding and storing the device.

[0027] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A subgrade thickness control device, comprising a base (1), characterized in that, A column (3) is fixedly arranged at the top of the base (1). A slider (6) is movably arranged inside the column (3) through an adjusting screw rod (4). One end of the slider (6) is symmetrically and fixedly provided with fixing blocks (7). A cross bar (9) is movably installed between the two fixing blocks (7) through a torsion spring rotating shaft. One side of the front end of the fixing block (7) is fixedly provided with a pointer (10). The pointer (10) and the bottom of the cross bar (9) are in the same horizontal plane. A limiting groove (13) is formed on the top of the base (1) corresponding to one side of the column (3).

2. The subgrade thickness control device according to claim 1, characterized in that: The column (3) is in a "U" shape, and the adjusting screw rod (4) is installed in the column (3) with limited rotation.

3. The subgrade thickness control device according to claim 2, characterized in that: The slider (6) is installed on the adjusting screw rod (4) through a threaded hole formed inside it, and the slider (6) is slidably installed between the two ends of the column (3).

4. The subgrade thickness control device according to claim 3, characterized in that: Scales (5) are arranged on the front and rear end faces of the column (3), and the pointer (10) is arranged on one side of the scales (5).

5. The roadbed thickness control device according to claim 1, characterized in that: A knob is fixedly arranged at the top end of the adjusting screw rod (4), and a first bubble level (11) is fixedly arranged on the top of the knob.

6. The subgrade thickness control device according to claim 1, characterized in that: A fastening bolt (8) is screwed inside one end of the fixing block (7), and one end of the fastening bolt (8) is in close contact with the outer wall of the cross bar (9).

7. The subgrade thickness control device according to claim 6, characterized in that: A second bubble level (12) is fixedly arranged on the top of the cross bar (9), and one end of the cross bar (9) is clamped and installed inside the limiting groove (13).

8. A subgrade thickness control device according to claim 1, characterized in that: An elastic rubber pad (2) is fixedly arranged at the bottom of the base (1), and fixing holes (14) are formed at the four corner positions inside the elastic rubber pad (2) and the base (1).

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