A roadbed measurement device for highway construction

Abstract

A road surface base measurement device for highway construction includes: two sets of roller assemblies with a gap between them; a measuring frame connecting the two roller assemblies, with the roller assemblies slidably connected to the measuring frame; a drilling mechanism located in the middle of the measuring frame; a limiting rod passing through the two roller assemblies; a positioning column detachably connected to the measuring frame and the roller assemblies; and an adjusting component located on the side wall of the roller assemblies. This device integrates drilling and sampling equipment with flatness measurement equipment, allowing for simultaneous measurement of multiple data points, reducing the number of devices carried and saving time.

Description

Technical Field

[0001] This utility model relates to the field of highway inspection technology, and more specifically, to a roadbed measurement device for highway construction. Background Technology

[0002] Highways refer to roads that connect cities, urban and rural areas, villages and industrial and mining bases, built in accordance with national technical standards, and inspected and approved by the highway authorities. They include expressways, Class I highways, Class II highways, Class III highways and Class IV highways. They are mainly for automobile traffic and have certain technical standards and facilities. During the construction of highways, it is necessary to test the slope and flatness of the subgrade after the roadbed is laid, as well as to take samples for measurement.

[0003] Existing measurements involve testing flatness, slope, and sampling separately, which requires carrying different equipment for multiple measurements, making the equipment cumbersome and the measurement efficiency low. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a roadbed base measurement device for highway construction that integrates slope and evenness measurement with drilling equipment into one unit.

[0005] A road surface base measurement device for highway construction includes: a roller assembly, wherein two sets of roller assemblies are provided with a gap between the two sets of roller assemblies; a measuring frame, wherein the measuring frame connects the two roller assemblies and the roller assemblies are slidably connected to the measuring frame; a drilling mechanism, wherein the drilling mechanism is located in the middle of the measuring frame; a limiting rod, wherein the limiting rod passes through the two roller assemblies; a positioning column, wherein the positioning column is detachably connected to the measuring frame and the roller assemblies; and an adjusting component, wherein the adjusting component is located on the side wall of the roller assembly.

[0006] Furthermore, the roller assembly includes a mounting frame and a movable wheel, the movable wheel being rotatably connected to the bottom of the mounting frame and rolling on the road surface base layer.

[0007] Furthermore, the side wall of the mounting frame is provided with a slide tube, the distance measuring frame is slidably connected to the slide tube, and the bottom of the distance measuring frame is provided with a locking piece, the size of which is larger than the size of the slide tube.

[0008] Furthermore, the distance measuring frame has scale lines on both sides of its vertical inner walls, and a device platform is provided in the middle of the distance measuring frame, with a spirit level on the device platform.

[0009] Further, the drilling mechanism comprises a pressing rod, a motor, a driving tube and a sampling tube, wherein the pressing rod is slidably connected to the equipment platform, the fixed end of the motor is fixedly connected to the bottom of the pressing rod, the output end of the motor is fixedly connected to the bottom of the driving tube, and the sampling tube is detachably connected to the bottom of the driving tube.

[0010] Further, a plurality of connecting grooves are provided at the top of the sampling tube, the connecting grooves are in a "convex" shape, the top of the connecting grooves penetrates the top of the sampling tube, a connecting post is provided at the bottom of the driving tube, and the connecting post can be inserted into the connecting grooves.

[0011] Further, a limiting hole is provided on the mounting bracket, and the limiting rod penetrates the limiting hole.

[0012] Further, a threaded post is provided at the end of the limiting rod, a threaded hole is provided at a side of the limiting hole, and the threaded post can be screwed to the threaded hole.

[0013] Further, clamping grooves are provided on both the mounting bracket and the distance measuring bracket, and both ends of the positioning post can be inserted into the clamping grooves.

[0014] Further, the adjusting assembly comprises an extension plate, a threaded rod and a bottom support, the extension plate is fixedly connected to a side wall of the sliding tube, the threaded rod is screwed to the extension plate, and the bottom of the threaded rod is rotatably connected to the bottom support.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] ① After the distance measuring bracket is adjusted, the scale lines at the contact part of the sliding tube and the distance measuring bracket can be read, then the height difference between the two roller assemblies can be calculated, and the slope of the road base at this position can be obtained through the height difference.

[0017] ② When in use, the limiting rod penetrates the two limiting holes, and then the threaded post is screwed into the threaded hole on one side, so that the two roller assemblies move synchronously; when detecting flatness, the two moving wheels are moved on the road base, and whether the road surface is inclined is judged by observing the change of the level bubble.

[0018] ③ The drilling and sampling equipment and the flatness measuring equipment of the present device are integrated into one, which can perform multi-data measurement on detection points at one time, saving time while reducing the number of equipments to be carried. Description of Drawings

[0019] The drawings are intended to provide a further understanding of the present utility model, and constitute a part of the specification. They are used to explain the present utility model together with the embodiments of the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0020] Figure 1This is a schematic diagram of the overall structure of a roadbed base measurement device for highway construction.

[0021] Figure 2 This is a schematic diagram of the drilling mechanism in a roadbed base measurement device for highway construction.

[0022] In the diagram: 1. Roller assembly; 11. Mounting bracket; 111. Slide tube; 112. Limiting hole; 12. Moving wheel; 2. Rangefinder frame; 21. Positioning piece; 22. Scale line; 23. Equipment platform; 231. Spirit level; 3. Drilling mechanism; 31. Pressing rod; 32. Motor; 33. Drive tube; 331. Connecting column; 34. Sampling tube; 341. Connecting groove; 4. Limiting rod; 41. Threaded column; 5. Positioning column; 6. Adjustment assembly; 61. Extension plate; 62. Threaded rod; 63. Bottom support. Detailed Implementation

[0023] 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.

[0024] like Figure 1 As shown, a road base measurement device for highway construction includes: a roller assembly 1, which has two sets of roller assemblies with a gap between them; a distance measuring frame 2, which connects the two roller assemblies 1 and the roller assemblies 1 are slidably connected to the distance measuring frame 2; a drilling mechanism 3, which is located in the middle of the distance measuring frame 2; a limiting rod 4, which passes through the two roller assemblies 1; a positioning column 5, which is detachably connected to the distance measuring frame 2 and the roller assemblies 1; and an adjusting component 6, which is located on the side wall of the roller assembly 1.

[0025] The roller assembly 1 includes a mounting frame 11 and a movable wheel 12. The mounting frame 11 is a frame structure, and the movable wheel 12 is rotatably connected to the bottom of the mounting frame 11. The movable wheel 12 rolls on the road base layer. The friction between the movable wheel 12 and the road base layer is small, which facilitates the movement of this device to multiple detection and measurement locations. The two roller assemblies 1 are independent of each other, and their relative height can be freely changed without the installation of the limit rod 4. Under the action of gravity, the movable wheel 12 is in contact with the road base layer.

[0026] The distance measuring frame 2 is composed of square steel tubes. It consists of a horizontal bar parallel to the road surface base and two vertical bars welded together. The side wall of the mounting frame 11 has a slide tube 111, the size of which is the same as the dimensions of the vertical bars on both sides of the distance measuring frame 2. The distance measuring frame 2 is slidably connected to the slide tube 111. A locking piece 21 is located at the bottom of the distance measuring frame 2, the size of which is larger than the size of the slide tube 111. When the distance measuring frame 2 is lifted upwards, the locking piece 21 moves the slide tube 111 and the roller assembly 1 upwards together. During normal operation, the distance measuring frame 2 moves the two roller assemblies 1 simultaneously. At this time, the distance measuring frame 2 slides up and down on the slide tube 111 due to the undulations of the terrain.

[0027] The measuring frame 2 has scale lines 22 on both sides of its vertical inner walls, and an equipment platform 23 in the middle of the measuring frame 2, with a spirit level 231 on the equipment platform 23. After reaching the measurement sampling point of the road base, the position of the measuring frame 2 is adjusted so that the equipment platform 23 is horizontal. The spirit level 231 is used to guide the adjustment. After the measuring frame 2 is adjusted, the scale lines 22 at the contact point between the slide tube 111 and the measuring frame 2 can be read, and the height difference between the two roller assemblies 1 can be calculated. The slope of the road base at this point is obtained through the height difference, and the slope is judged to be qualified based on the measurement data.

[0028] Drilling mechanism 3 is used to sample and test whether the thickness of the road base layer meets the requirements. For example... Figure 2 As shown, the drilling mechanism 3 includes a pressing rod 31, a motor 32, a drive tube 33, and a sampling tube 34. The pressing rod 31 is slidably connected to the equipment platform 23, facilitating sampling operations for the measuring personnel. The fixed end of the motor 32 is fixed to the bottom of the pressing rod 31, and the output end of the motor 32 is fixed to the bottom of the drive tube 33. The motor 32 drives the drive tube 33 to rotate. The sampling tube 34 is detachably connected to the bottom of the drive tube 33. When sampling, the motor 32 is started, causing the drive tube 33 and the sampling tube 34 to rotate, generating cutting force to drill through the road base layer. By pressing the pressing rod 31, the sampling rod moves downward to collect the sample.

[0029] The top of the sampling tube 34 is provided with multiple connecting grooves 341, which are convex in shape. The top of the connecting grooves 341 extends through the top of the sampling tube 34. The bottom of the drive tube 33 is provided with a connecting post 331, which can be inserted into the connecting groove 341. When installing the sampling tube 34, the connecting post 331 is inserted from the top of the connecting groove 341. Then, the sampling tube 34 is rotated so that the connecting post 331 fits against the bottom edge of the connecting groove 341, thereby preventing the connecting post 331 from detaching from the connecting groove 341. During drilling and sampling, the motor 32 transmits the rotational force to the connecting groove 341, thereby causing the sampling tube 34 to rotate. After the road base sample is removed, the sampling tube 34 is rotated so that the connecting post 331 can detach from the connecting groove 341. Then, a long rod is used to push the sample out of the sampling tube 34, and the thickness of the road base can be measured.

[0030] When testing the smoothness of a slope with no design inclination, two roller assemblies 1 are connected together by a limiting rod 4 to restrict the relative sliding of the two roller assemblies 1. The mounting bracket 11 has a limiting hole 112, through which the limiting rod 4 passes. The end of the limiting rod 4 has a threaded post 41, and a threaded hole is provided on the side of the limiting hole 112. The threaded post 41 can be screwed into the threaded hole. In use, the limiting rod 4 is passed through both limiting holes 112, and then the threaded post 41 is screwed into the threaded hole on one side, thereby causing the two roller assemblies 1 to move synchronously. When testing the smoothness, the two moving wheels 12 are moved on the road surface base, and the changes in the level bubble 231 are observed to determine whether the road surface has tilted.

[0031] To prevent the measuring frame 2 from shaking during flatness measurement, both the mounting frame 11 and the measuring frame 2 are equipped with slots. The two ends of the positioning post 5 can be inserted into the slots. After the positioning post 5 is inserted into the slot, the locking piece 21 contacts the slide tube 111. The positioning post 5 restricts the measuring frame 2 from sliding downward. After the positioning post 5 is installed, it is also convenient to apply pressure to the pressing rod 31 when drilling and sampling.

[0032] To prevent the moving wheel 12 from rolling during sampling, an adjustment assembly 6 is used to support the ground and lift the moving wheel 12 off the ground. The adjustment assembly 6 includes an extension plate 61, a threaded rod 62, and a bottom support 63. The extension plate 61 is fixed to the side wall of the slide tube 111 and is perpendicular to the slide tube 111. The threaded rod 62 is screwed to the extension plate 61 and its bottom is rotatably connected to the bottom support 63. Rotating the threaded rod 62 causes it to move downward, thereby allowing the bottom support 63 to support the ground. Rotating the threaded rod 62 will not cause the bottom support 63 to turn.

[0033] This device integrates drilling and sampling equipment and flatness measurement equipment into one unit, enabling multiple data measurements to be taken at the test points at once, reducing the number of equipment items carried and saving time.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A roadbed base measurement device for highway construction, characterized in that, include: Roller assembly (1), wherein the roller assembly (1) is provided in two sets and there is a gap between the two sets of roller assemblies (1); A rangefinder (2) is connected to two roller assemblies (1), and the roller assemblies (1) are slidably connected to the rangefinder (2). Drilling mechanism (3), which is located in the middle of the rangefinder (2); A limiting rod (4) passes through both roller assemblies (1); Positioning post (5), which is detachably connected to the rangefinder (2) and the roller assembly (1); Adjustment component (6) is disposed on the side wall of the roller assembly (1).

2. The roadbed measurement device for highway construction according to claim 1, characterized in that: The roller assembly (1) includes a mounting frame (11) and a movable wheel (12), the movable wheel (12) being rotatably connected to the bottom of the mounting frame (11) and rolling on the road base layer.

3. The roadbed measurement device for highway construction according to claim 2, characterized in that: The mounting bracket (11) has a slide tube (111) on its side wall. The distance measuring frame (2) is slidably connected to the slide tube (111). The bottom of the distance measuring frame (2) has a locking piece (21). The size of the locking piece (21) is larger than that of the slide tube (111).

4. The roadbed measurement device for highway construction according to claim 3, characterized in that: The measuring frame (2) has scale lines (22) on both sides of its vertical inner wall, and a device platform (23) is provided in the middle of the measuring frame (2), with a spirit level (231) on the device platform (23).

5. A roadbed base measurement device for highway construction according to claim 4, characterized in that: The drilling mechanism (3) includes a pressing rod (31), a motor (32), a drive tube (33), and a sampling tube (34). The pressing rod (31) is slidably connected to the equipment platform (23). The fixed end of the motor (32) is fixed to the bottom of the pressing rod (31), and the output end of the motor (32) is fixed to the bottom of the drive tube (33). The sampling tube (34) is detachably connected to the bottom of the drive tube (33).

6. A roadbed base measurement device for highway construction according to claim 5, characterized in that: The top of the sampling tube (34) is provided with multiple connecting grooves (341), the connecting grooves (341) are "convex" shaped, the top of the connecting grooves (341) penetrates the top of the sampling tube (34), and the bottom of the driving tube (33) is provided with a connecting post (331), the connecting post (331) can be inserted into the connecting groove (341).

7. A roadbed base measurement device for highway construction according to claim 6, characterized in that: The mounting bracket (11) is provided with a limiting hole (112), and the limiting rod (4) passes through the limiting hole (112).

8. A roadbed base measurement device for highway construction according to claim 7, characterized in that: The end of the limiting rod (4) is provided with a threaded post (41), and the side of the limiting hole (112) is provided with a threaded hole. The threaded post (41) can be screwed into the threaded hole.

9. A roadbed base measurement device for highway construction according to claim 8, characterized in that: Both the mounting bracket (11) and the ranging bracket (2) are provided with slots, and the two ends of the positioning column (5) can be inserted into the slots.

10. A roadbed base measurement device for highway construction according to claim 9, characterized in that: The adjustment assembly (6) includes an extension plate (61), a threaded rod (62), and a bottom support (63). The extension plate (61) is fixed to the side wall of the slide tube (111), the threaded rod (62) is screwed to the extension plate (61), and the bottom of the threaded rod (62) is rotatably connected to the bottom support (63).

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