Loose laying thickness measuring device

Abstract

The utility model relates to a loose laying thickness measuring device which comprises a fixing cylinder, a horizontal detector is fixedly installed at the center of the top of the fixing cylinder, a supporting assembly is fixedly installed on the surface of the fixing cylinder, and a measuring mechanism is fixedly installed in the fixing cylinder. The supporting assembly comprises a fixing disc fixedly installed on the surface of the fixing cylinder, and three supporting rods are rotationally installed on the surface of the fixing disc. According to the loose laying thickness measuring device, by arranging three supporting rods distributed in an umbrella shape and a bottom conical tip in the supporting assembly, a large supporting area can be provided in a loose and loose laying layer, the weight of the device can be dispersed, the situation that precision is affected due to too deep sinking is avoided, and stability is enhanced; the electric push rod of the measuring mechanism accurately controls the measuring rod which is made of high-strength alloy steel and has a conical bottom to be vertically and stably inserted into the loose laying layer, compared with manual insertion, the measuring error is greatly reduced, the thickness value of the loose laying layer is accurately obtained, and reliable data is provided for pavement construction quality control.

Description

TECHNICAL FIELD

[0001] The utility model relates to road surface construction technical field, concretely is a kind of loose laying thickness measuring device. BACKGROUND

[0002] Road surface loose laying thickness refers to the material layer thickness that is not compacted after paving, and in road paving operation, loose laying thickness is an important indicator of construction quality control, which needs to be checked at any time to avoid deviation from the specified requirements. If the paving thickness is too small, it will affect the road structure strength and reduce the service life. If the paving thickness is too large, it will cause material waste and increase construction cost.

[0003] Currently, in the construction site, the traditional measurement method mainly relies on manual operation, that is, the worker directly inserts the measuring tool into the loose layer for thickness measurement. However, this seemingly simple and direct method has many defects that are difficult to overcome. Manual operation is greatly affected by subjective factors. It is difficult to ensure verticality every time when inserting the measuring tool. Inclined insertion is common. When the measuring tool is inclined or inserted on uneven road surface, the measured data deviates greatly from the actual loose laying thickness, and cannot truly reflect the accurate thickness of the loose layer. These inaccurate data will mislead the construction decision, making it difficult for the construction personnel to effectively adjust the loose laying thickness, and thus seriously affecting the road construction quality and cost control. Therefore, a loose laying thickness measuring device is proposed to solve the above-mentioned problems. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a loose laying thickness measuring device, which has the advantages of accurate measurement, etc. The problem of the traditional measurement method mainly relying on manual operation, that is, the worker directly inserts the measuring tool into the loose layer for thickness measurement, however, this seemingly simple and direct method has many defects that are difficult to overcome. Manual operation is greatly affected by subjective factors. It is difficult to ensure verticality every time when inserting the measuring tool. Inclined insertion is common. When the measuring tool is inclined or inserted on uneven road surface, the measured data deviates greatly from the actual loose laying thickness.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a loose laying thickness measuring device, comprising a fixed cylinder, a horizontal detector is fixedly installed at the top center position of the fixed cylinder, a support assembly is fixedly installed on the surface of the fixed cylinder, and a measuring mechanism is fixedly installed inside the fixed cylinder.

[0006] The support assembly comprises a fixed disc fixedly installed on the surface of the fixed cylinder, three support rods are rotatably installed on the surface of the fixed disc, a tapered tip is fixedly installed at the bottom of each of the three support rods, the surface of the fixed cylinder is threadedly connected with a movable disc, and three connecting rods are movably installed on the surface of the movable disc.

[0007] The measuring mechanism comprises a mounting groove formed in the inside of the fixed cylinder, an electric push rod is fixedly installed on the inner top wall of the mounting groove, a moving block is fixedly installed at the driving end of the electric push rod, and a measuring rod is fixedly installed on the bottom of the moving block.

[0008] Preferably, the three support rods are distributed in an umbrella shape on the surface of the fixed cylinder, and the three tapered tips are located at the bottom of the fixed cylinder.

[0009] Preferably, the movable disc is located at the bottom of the fixed disc, and the three connecting rods are movably connected to the inner wall of the support rod away from the movable disc.

[0010] Preferably, the surface of the moving block is slidably connected to the inner wall of the mounting groove, and the surface of the measuring rod is provided with scale lines.

[0011] Preferably, the material of the measuring rod is high-strength alloy steel, and the bottom of the measuring rod is conically arranged.

[0012] Preferably, the three connecting rods are designed as inclined rods, and the surface of the fixed cylinder is provided with external threads, and the inner wall of the movable disc is provided with internal threads matched with the external threads.

[0013] Compared with the prior art, the technical scheme has the following beneficial effects:

[0014] The loose paving thickness measuring device can provide a large supporting area for the soft loose paving layer, disperse the weight of the device, avoid sinking too deep to affect the precision, and enhance the stability through the three umbrella-shaped support rods and the bottom tapered tip in the supporting assembly; the electric push rod of the measuring mechanism can accurately control the high-strength alloy steel material and the bottom conical measuring rod to be vertically and stably inserted into the loose paving layer, greatly reduce the measurement error compared with manual insertion, accurately obtain the thickness value of the loose paving layer, and provide reliable data for road construction quality control. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structure perspective view of the utility model;

[0016] Fig. 2 It is a structure schematic view of the utility model;

[0017] Fig. 3 It is a structure sectional view of the utility model.

[0018] In the drawing: 1, fixed cylinder; 2, horizontal detector; 3, supporting assembly; 301, fixed disc; 302, support rod; 303, tapered tip; 304, movable disc; 305, connecting rod; 4, measuring mechanism; 401, mounting groove; 402, electric push rod; 403, moving block; 404, measuring rod. DETAILED DESCRIPTION

[0019] 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.

[0020] Please see Figs. 1-3 The loose thickness measuring device in this embodiment includes a fixed cylinder 1, a level detector 2 fixedly installed at the top center of the fixed cylinder 1, a support component 3 fixedly installed on the surface of the fixed cylinder 1, and a measuring mechanism 4 fixedly installed inside the fixed cylinder 1.

[0021] It should be noted that the loose layer thickness refers to the thickness of the material layer that has been laid but not compacted. In road paving operations, the loose layer thickness is an important indicator for construction quality control and needs to be checked at any time to avoid deviation from the specified requirements. If the paving thickness is too small, it will affect the strength of the road structure and reduce its service life; if the paving thickness is too large, it will cause material waste and increase construction costs. The loose layer thickness measuring device can be composed of the fixed cylinder 1, the level measuring instrument 2, the support component 3, and the measuring mechanism 4 set above.

[0022] In this embodiment, the level detector 2 is a high-precision electronic level. The high-precision electronic level is equipped with a gravity sensing element, such as a microelectromechanical system (MEMS) accelerometer. The accelerometer consists of a mass block and an elastic support structure. When the level detector 2 is at different tilt angles, the mass block will exert forces of different directions and magnitudes on the elastic support structure under the action of gravity, thereby causing changes in physical quantities such as capacitance, inductance, or resistance inside the accelerometer. By detecting these changes in physical quantities and converting them into electrical signals, and then through complex circuit processing and algorithm calculations, the tilt angle of the level relative to the direction of gravity can be accurately determined, thereby determining whether the fixed cylinder 1 is in a horizontal state.

[0023] The support assembly 3 includes a fixed plate 301 fixedly mounted on the surface of the fixed cylinder 1, three support rods 302 rotatably mounted on the surface of the fixed plate 301, and a cone tip 303 fixedly mounted on the bottom of each of the three support rods 302. A movable plate 304 is threadedly connected to the surface of the fixed cylinder 1, and three connecting rods 305 are movably mounted on the surface of the movable plate 304.

[0024] Three support rods 302 are distributed in an umbrella shape on the surface of the fixed cylinder 1, and three cone tips 303 are located at the bottom of the fixed cylinder 1.

[0025] The movable plate 304 is located at the bottom of the fixed plate 301, and the ends of the three connecting rods 305 away from the movable plate 304 are all movably connected to the inner wall of the support rod 302.

[0026] In this embodiment, by rotating the movable disk 304, since the movable disk 304 is threadedly connected to the fixed cylinder 1, rotating the movable disk 304 will cause it to move up and down along the axial direction of the fixed cylinder 1. When the movable disk 304 moves downward, the three connecting rods 305 movably connected to the movable disk 304 will push the three support rods 302 to rotate outward around the connection point of the fixed disk 301. As the movable disk 304 continues to move downward, the three support rods 302 gradually unfold into an umbrella shape until the three cone tips 303 are firmly inserted into the loose layer ground, forming a stable support structure.

[0027] In this embodiment, the support component 3 can provide a large support area on the soft pavement layer, distributing the weight of the measuring device and preventing the device from sinking too deep into the pavement layer due to its own weight during the measurement process, thus affecting the measurement accuracy; and the cone tip 303 is designed to be inserted into the pavement layer more easily, enhancing the stability of the support and preventing the device from shaking or shifting during the measurement.

[0028] The measuring mechanism 4 includes an installation groove 401 inside the fixed cylinder 1. An electric push rod 402 is fixedly installed on the inner top wall of the installation groove 401. A moving block 403 is fixedly installed at the drive end of the electric push rod 402. A measuring rod 404 is fixedly installed at the bottom of the moving block 403.

[0029] The measuring rod 404 is made of high-strength alloy steel, and the bottom of the measuring rod 404 is conical.

[0030] In this embodiment, the electric push rod 402 starts working, and its drive end pushes the movable block 403, which is fixedly connected to it, to move downward along the inner wall of the mounting groove 401. Since the measuring rod 404 is fixedly installed at the bottom of the movable block 403, the downward movement of the movable block 403 causes the measuring rod 404 to extend downward synchronously from the fixed cylinder 1. The bottom of the measuring rod 404 is conical, which can be inserted into the loose layer relatively smoothly. As the measuring rod 404 is continuously inserted, when the bottom of the measuring rod 404 reaches the bottom of the loose layer and contacts the underlying layer, the electric push rod 402 stops running. At this time, the scale line on the surface of the measuring rod 404 is observed. The thickness value of the loose layer can be read from the scale corresponding to the position where the measuring rod 404 protrudes from the surface of the loose layer. Compared with manually inserting measuring tools, it can be inserted into the loose layer more vertically and stably, reducing the measurement error caused by human operation, thereby accurately measuring the thickness of the loose layer and providing reliable data for road construction quality control.

[0031] In summary, this loose paving thickness measuring device, through the arrangement of three umbrella-shaped support rods 302 and a bottom conical tip 303 in the support component 3, can provide a large support area in the soft loose paving layer, distribute the weight of the device, avoid sinking too deep and affecting accuracy, and enhance stability. The electric push rod 402 of the measuring mechanism 4 precisely controls the vertical and stable insertion of the high-strength alloy steel measuring rod 404 with a bottom conical shape into the loose paving layer. Compared with manual insertion, this greatly reduces measurement errors, accurately obtains the loose paving layer thickness value, and provides reliable data for road construction quality control.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A loose thickness measuring device, comprising a fixed cylinder (1), characterized in that: A level detector (2) is fixedly installed at the top center of the fixed cylinder (1), a support assembly (3) is fixedly installed on the surface of the fixed cylinder (1), and a measuring mechanism (4) is fixedly installed inside the fixed cylinder (1). The support assembly (3) includes a fixed disk (301) fixedly mounted on the surface of a fixed cylinder (1), three support rods (302) rotatably mounted on the surface of the fixed disk (301), and a cone tip (303) fixedly mounted on the bottom of each of the three support rods (302). A movable disk (304) is threadedly connected to the surface of the fixed cylinder (1), and three connecting rods (305) are movably mounted on the surface of the movable disk (304). The measuring mechanism (4) includes an installation groove (401) inside the fixed cylinder (1), an electric push rod (402) is fixedly installed on the inner top wall of the installation groove (401), a moving block (403) is fixedly installed at the drive end of the electric push rod (402), and a measuring rod (404) is fixedly installed at the bottom of the moving block (403).

2. The loose thickness measuring device according to claim 1, characterized in that: The three support rods (302) are distributed in an umbrella shape on the surface of the fixed cylinder (1), and the three cone tips (303) are all located at the bottom of the fixed cylinder (1).

3. The loose thickness measuring device according to claim 1, characterized in that: The movable disk (304) is located at the bottom of the fixed disk (301), and the ends of the three connecting rods (305) away from the movable disk (304) are all movably connected to the inner wall of the support rod (302).

4. The loose thickness measuring device according to claim 1, characterized in that: The surface of the movable block (403) is slidably connected to the inner wall of the mounting groove (401), and the surface of the measuring rod (404) is provided with scale lines.

5. The loose thickness measuring device according to claim 1, characterized in that: The measuring rod (404) is made of high-strength alloy steel, and the bottom of the measuring rod (404) is conical.

6. The loose thickness measuring device according to claim 1, characterized in that: All three connecting rods (305) are designed as diagonal rods, and the surface of the fixed cylinder (1) is provided with external threads, and the inner wall of the movable disc (304) is provided with internal threads that are compatible with the external threads.

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