A device for measuring the compaction settlement of a roadbed

Abstract

The utility model relates to road construction technical field discloses a kind of roadbed compaction settlement measurement devices, including bottom plate, its upper end is connected with support plate by leveling assembly, and the horizontal state of support plate is judged by horizontal measuring piece;Stand, its vertical arrangement is in the upper end of support plate, and it is rotatably connected with operating plate;Locking assembly, it is arranged on operating plate, and it is used for the rotation of lockable operating plate on stand;Clamping assembly, it is arranged on operating plate;And laser pen, it is fixed on operating plate by clamping assembly.The utility model can reduce the dependence on precision observation equipment, so that the measurement structure does not need special person special maintenance.

Description

Technical Field

[0001] This utility model relates to the field of road construction technology, and in particular to a device for measuring roadbed compaction settlement. Background Technology

[0002] Subgrade compaction settlement measurement devices are key equipment for quality control in road engineering construction, and are widely used in the subgrade construction phase of infrastructure such as highways and municipal roads. Their core function is to measure the settlement change of the subgrade before and after compaction, thereby determining whether the compaction density meets design standards and providing reliable quality data for subsequent pavement laying processes.

[0003] Existing measurement methods typically utilize a level and a ruler. Before compaction, workers place the level at the observation point and the ruler at the measurement point, observing and recording the corresponding readings on the ruler. After compaction, the ruler is repositioned at the same measurement point, and the level is observed and the readings recorded again. The difference between the two readings represents the compaction settlement. However, this method has several drawbacks. It places extremely high demands on the performance of the observation equipment. The level, being a precision optical instrument, is not only expensive to purchase but also requires dedicated personnel for daily storage and maintenance, and the storage environment must be strictly controlled. During use at the construction site, the level must be handled with care to prevent collisions and vibrations, as these can easily cause deviations in instrument accuracy, affecting the accuracy of the measurement results.

[0004] Therefore, how to reduce reliance on precision observation equipment and make the measurement structure unnecessary for dedicated personnel to maintain has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The present invention aims to provide a roadbed compaction settlement measuring device to overcome the above-mentioned shortcomings.

[0006] To achieve the above objectives, the technical solution of this utility model is: a roadbed compaction settlement measuring device, comprising:

[0007] The base plate is connected to the support plate at its upper end via a leveling assembly, and the horizontal state of the support plate is determined by a level measuring device.

[0008] The upright pole is vertically arranged at the upper end of the support plate and is rotatably connected to the operating plate;

[0009] A locking assembly, disposed on the operating plate, is used to operably lock the operating plate on the upright;

[0010] Clamping components, which are arranged on the operating panel; and

[0011] A laser pointer, which is fixed to the operating panel by the clamping assembly.

[0012] Furthermore, the clamping assembly includes a screw, guide rods, and a clamping plate. The upper end of the operating plate is provided with a placement groove for placing the laser pointer. The clamping plate is located in the placement groove. One end of the screw is threaded through one side of the placement groove and rotatably connected to the clamping plate. The other end of the screw is fixedly connected to a rotating plate. Two guide rods are symmetrically arranged on both sides of the screw. One end of the guide rod slides through one side of the placement groove and is fixedly connected to the clamping plate. The other end of the guide rod is fixedly connected to a limiting plate.

[0013] Furthermore, a fixing plate is fixedly connected to the upper end of the upright, and a rotating shaft is fixedly connected to the lower end of the operating plate. The rotating shaft and the fixing plate are rotatably connected through a bearing.

[0014] Furthermore, the side wall of the control panel is provided with at least one handle.

[0015] Furthermore, one of the handles is hinged to the control panel in an up-and-down flip configuration, while the other handles are fixed to the control panel.

[0016] Furthermore, the locking assembly includes a magnet and an iron ring, wherein the magnet is disposed on the side of the handle facing the fixing plate, and the iron ring is fixed to the periphery of the fixing plate.

[0017] Furthermore, the upper end of the fixed plate has a circular array of several rollers, and the rollers are slidably connected to the lower end of the operating plate.

[0018] Furthermore, the support plate has vertically penetrating mounting holes that correspond one-to-one with the leveling components. The leveling components include a first bolt, a leveling universal ball joint, and a nut. The nut is fixed to the mounting hole. The annular flange of the leveling universal ball joint is detachably connected to the base plate. One end of the first bolt is threaded through the nut and connected to the leveling universal ball joint.

[0019] Furthermore, a number of support legs are fixedly connected to the lower end of the base plate, and a number of fixing teeth are fixedly connected to the lower end of the support legs.

[0020] Furthermore, the upright is a hollow pole, and several reinforcing plates are provided between the upright and the support plate.

[0021] Compared with the prior art, this utility model has at least the following advantages: In use, the support plate is first adjusted to a horizontal state by adjusting the leveling component, the operating plate is rotated to drive the laser pointer to adjust the angle, and the laser pointer is aligned with the test point on the roadbed and the operating plate is fixed by the locking component. Before compaction, the projection position of the laser pointer on the scale of the test point is recorded. After compaction, the projection position on the scale is recorded again at the same position. By using the linear propagation of the laser, the roadbed compaction settlement can be obtained by the difference between the two projection positions. The whole process does not require a precision level and does not require special maintenance by a dedicated person, thus reducing equipment costs and usage risks. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the roadbed compaction settlement measuring device of this utility model;

[0024] Figure 2 This is a cross-sectional view of the roadbed compaction settlement measuring device of this utility model;

[0025] Figure 3 This is a schematic diagram of the placement groove and clamping assembly of this utility model;

[0026] Figure 4 This is a cross-sectional view of the support leg and fixing teeth of this utility model.

[0027] Reference numerals: 1. Base plate; 2. Support plate; 3. Horizontal measuring component; 4. Vertical pole; 5. Operating panel; 6. Laser pointer; 7. Placement slot; 8. Screw; 9. Guide rod; 10. Clamping plate; 11. Rotating plate; 12. Limiting plate; 13. Fixing plate; 14. Rotating shaft; 15. Handle; 16. Magnet; 17. Iron ring; 18. First bolt; 19. Leveling universal ball joint; 20. Nut; 21. Support leg; 22. Fixing tooth; 23. Reinforcing plate; 24. Roller. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Reference Figure 1-2 This utility model provides a roadbed compaction settlement measuring device, including a base plate 1, with a leveling assembly connecting the upper end of the base plate 1 to a support plate 2. A horizontal measuring element 3, which is a spirit level, is fixedly connected to the upper end of the support plate 2 to determine the horizontal state of the support plate 2. The horizontal measuring element 3 is a spirit level. A vertical pole 4 is arranged on the upper end of the support plate 2 and is rotatably connected to an operating plate 5. A locking assembly is arranged on the operating plate 5 to operably lock the rotation of the operating plate 5 on the vertical pole 4. A clamping assembly is arranged on the operating plate 5. A laser pointer 6 is fixed on the operating plate 5 through the clamping assembly.

[0031] Reference Figure 3 The clamping assembly includes a screw 8, guide rods 9, and clamping plate 10. The upper end of the operating plate 5 is provided with a placement groove 7 for placing the laser pointer 6. The clamping plate 10 is located in the placement groove 7. One end of the screw 8 is threaded through one side of the placement groove 7 and is rotatably connected to the clamping plate 10. The other end of the screw 8 is fixedly connected to the rotating plate 11. Two guide rods 9 are symmetrically arranged on both sides of the screw 8. One end of the guide rod 9 slides through one side of the placement groove 7 and is fixedly connected to the clamping plate 10. The other end of the guide rod 9 is fixedly connected to the limiting plate 12. Anti-slip pads (not shown in the figure) are provided on the side walls of the placement groove 7 and the clamping plate 10.

[0032] The operator first places the laser pointer 6 into the placement slot 7, then rotates the rotating plate 11 to drive the screw 8 to rotate, causing the clamping plate 10 to move within the placement slot 7 until the anti-slip pad is tightly attached to the surface of the laser pointer 6, thus achieving a stable clamping of the laser pointer 6; when disassembling, simply rotate the rotating plate 11 in the opposite direction to release the clamping plate 10, making the operation simple and quick.

[0033] Reference Figure 2 A fixing plate 13 is fixedly connected to the upper end of the upright 4, and a rotating shaft 14 is fixedly connected to the lower end of the operating plate 5. The rotating shaft 14 and the fixing plate 13 are rotatably connected through a bearing.

[0034] The side wall of the control panel 5 is provided with at least one handle 15, and the operator rotates the control panel 5 by means of the handle 15.

[0035] One of the handles 15 is hinged to the control panel 5 by flipping up and down, while the other handles 15 are fixed to the control panel 5.

[0036] The locking assembly includes a magnet 16 and an iron ring 17. A magnet 16 is provided on one side of the handle 15 facing the fixing plate 13. An iron ring 17 is fixed to the periphery of the fixing plate 13. The surface of the iron ring 17 is coated with a waterproof coating.

[0037] When the control panel 5 is rotated to the target angle, that is, when the laser pointer is on the scale placed on the point to be measured, the hinge handle 15 is flipped downwards to make the magnet 16 and the iron ring 17 attract and fix them, thus locking the rotation of the control panel 5; when the angle needs to be adjusted, the handle 15 is flipped upwards to separate the magnet 16 and the iron ring 17, and the control panel 5 returns to the rotatable state.

[0038] The upper end of the fixed plate 13 has a circular array of several rollers 24, and the rollers 24 are slidably connected to the lower end of the operating plate 5.

[0039] Reference Figure 1 The support plate 2 has vertically penetrating mounting holes that correspond one-to-one with the leveling components. The leveling components include a first bolt 18, a leveling universal ball joint 19, and a nut 20. The nut 20 is fixed to the mounting hole by welding. The annular flange of the leveling universal ball joint 19 is detachably connected to the base plate 1 by a second bolt. One end of the first bolt 18 is threaded through the nut 20 and connected to the leveling universal ball joint 19. The first bolt 18 is rotatably connected to the support plate 2 through the leveling universal ball joint 19.

[0040] By rotating the first bolt 18, the position of the support plate 2 can be adjusted. With the help of the horizontal measuring piece 3 set at the upper end of the support plate 2, the support plate 2 can be adjusted to a horizontal state.

[0041] Reference Figure 4 Several support legs 21 are fixed to the lower end of the base plate 1. Several fixing teeth 22 are fixed to the lower end of the support legs 21. The fixing teeth 22 are inserted into the soil at the observation point. A protective sleeve is provided around the support legs 21, and the fixing teeth 22 are located inside the protective sleeve. The pad provided at the bottom of the protective sleeve abuts against the tip of the fixing teeth 22. The protective sleeve is made of silicone, and the pad is made of PVC.

[0042] Reference Figure 2 The upright 4 is a hollow pole. The hollow structure can reduce the weight of the device. Several reinforcing plates 23 are set between the upright 4 and the support plate 2.

[0043] The working principle of this utility model is as follows: When in use, the worker removes the protective cover from the support leg 21, places the base plate 1 at the measurement point, and steps on the base plate 1 to insert the fixing teeth 22 at the lower end of the support leg 21 into the soil; the laser pointer 6 is placed in the placement slot 7 of the operating plate 5, and the worker holds the rotating plate 11 and rotates the screw 8 clockwise, which drives the clamping plate 10 to move along the guide rod 9 towards the inside of the placement slot 7 until the clamping plate 10 and the anti-slip pad on the side wall of the placement slot 7 clamp the laser pointer 6; the worker observes the horizontal measuring component 3 on the support plate 2. If the bubble is offset, the worker rotates the first bolt 18 at the corresponding position: when the first bolt 18 is rotated clockwise, the position of the support plate 2 rises; when rotated counterclockwise, the position falls. The worker repeatedly adjusts each leveling component until the bubble is centered; the worker records the initial projection position of the laser pointer 6 on the scale (before compaction). After the roadbed compaction is completed, the worker lets the machine stand for half an hour and measures the laser projection point at the same position again using this device. The vertical distance between the two projection points is the roadbed settlement at that measurement point. To measure the settlement in multiple directions, the locking assembly can be loosened and the handle 15 flipped to separate the magnet 16 from the iron ring 17. The operating plate 5 can then be rotated to a new angle and locked again. The measurement process can be repeated.

[0044] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0045] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A device for measuring roadbed compaction settlement, characterized in that, include: The base plate (1) is connected to the support plate (2) at its upper end through a leveling component, and the horizontal state of the support plate (2) is determined by a level measuring component (3); The upright (4) is vertically arranged at the upper end of the support plate (2) and is rotatably connected to the operating plate (5); A locking assembly, which is disposed on the operating plate (5), is used to operably lock the rotation of the operating plate (5) on the upright (4); A clamping assembly disposed on the operating plate (5); and A laser pointer (6) is fixed to the operation panel (5) by the clamping assembly.

2. The roadbed compaction settlement measuring device according to claim 1, characterized in that, The clamping assembly includes a screw (8), a guide rod (9), and a clamping plate (10). The upper end of the operating plate (5) is provided with a placement groove (7) for placing the laser pointer (6). The clamping plate (10) is located in the placement groove (7). One end of the screw (8) is threaded through one side of the placement groove (7) and rotatably connected to the clamping plate (10). The other end of the screw (8) is fixedly connected to the rotating plate (11). Two guide rods (9) are symmetrically arranged on both sides of the screw (8). One end of the guide rod (9) slides through one side of the placement groove (7) and is fixedly connected to the clamping plate (10). The other end of the guide rod (9) is fixedly connected to the limiting plate (12).

3. The roadbed compaction settlement measuring device according to claim 1, characterized in that, The upper end of the upright (4) is fixedly connected to a fixing plate (13), and the lower end of the operating plate (5) is fixedly connected to a rotating shaft (14). The rotating shaft (14) and the fixing plate (13) are rotatably connected through a bearing.

4. The roadbed compaction settlement measuring device according to claim 3, characterized in that, The side wall of the control panel (5) is provided with at least one handle (15).

5. The roadbed compaction settlement measuring device according to claim 4, characterized in that, One of the handles (15) is hinged to the operating plate (5) by flipping up and down, while the other handles (15) are fixed to the operating plate (5).

6. The roadbed compaction settlement measuring device according to claim 5, characterized in that, The locking assembly includes a magnet (16) and an iron ring (17), wherein the magnet (16) is provided on one side of the handle (15) facing the fixing plate (13), and the iron ring (17) is fixed to the periphery of the fixing plate (13).

7. The roadbed compaction settlement measuring device according to claim 3, characterized in that, The upper end of the fixed plate (13) has a circular array of several rollers (24), and the rollers (24) are slidably connected to the lower end of the operating plate (5).

8. The roadbed compaction settlement measuring device according to claim 1, characterized in that, The support plate (2) has vertical mounting holes that correspond one-to-one with the leveling components. The leveling components include a first bolt (18), a leveling universal ball joint (19), and a nut (20). The nut (20) is fixed to the mounting hole. The annular flange of the leveling universal ball joint (19) is detachably connected to the base plate (1). One end of the first bolt (18) is threaded through the nut (20) and connected to the leveling universal ball joint (19).

9. The roadbed compaction settlement measuring device according to claim 1, characterized in that, The bottom plate (1) has several supporting legs (21) fixedly connected to its lower end, and the lower end of each supporting leg (21) has several fixing teeth (22) fixedly connected to its lower end.

10. The roadbed compaction settlement measuring device according to claim 1, characterized in that, The upright (4) is a hollow pole, and a number of reinforcing plates (23) are provided between the upright (4) and the support plate (2).

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