A measuring device for measuring virtual paving thickness of asphalt mixture

Abstract

The utility model discloses a kind of measuring device for measuring asphalt mixture virtual paving thickness, it is related to construction detection equipment field, technical scheme is, including detection column and with the detachable handheld pole of detection column;Detection column is cylindrical, the upper end of detection column is provided with display screen and bubble level, lower end is provided with conical body, the lower end of conical body is provided with inductive ball, display and inductive ball are connected by several signal lines;Several vertical notches are arranged on the lateral wall of detection column in circumferential array, several protrusions are respectively slidably arranged in each notch, protrusion and detection column are connected by elastic element, and each signal line is respectively located in one notch;Several scale lines are also arranged on the lateral wall of detection column, scale line and notch are alternately arranged.The beneficial effects of the utility model are: through electronic and mechanical double mode collaborative work, significantly improve detection accuracy and reliability;Detachable design and telescopic structure facilitate carrying and adjusting operating posture, reduce manual fatigue.

Description

Technical Field

[0001] This utility model relates to the field of construction testing equipment, and in particular to a measuring device for measuring the loose thickness of asphalt mixture. Background Technology

[0002] Loose paving is a common method for laying asphalt mixtures. It typically involves first laying a layer of aggregate evenly on the road or other flat surface, then compacting it using rollers or a road roller, and finally laying a layer of asphalt mixture on top of the aggregate layer. This method can increase the stability and overall durability of the road surface.

[0003] During the loose-lay construction of asphalt mixtures, it is necessary to detect the loose-lay thickness of the asphalt mixture to control the pavement thickness and determine the amount of asphalt mixture used. Existing thickness detection methods include insert gauge testing, non-destructive testing with ground-penetrating radar, and conversion of loose-lay thickness by drilling to test compaction after the pavement has completely cooled. For projects with large asphalt mixture paving areas, large volumes, and long construction periods, traditional methods for detecting the loose-lay thickness of asphalt mixtures cannot quickly and accurately obtain loose-lay thickness readings, resulting in certain measurement errors and safety hazards. At the same time, the testing equipment is expensive and complex in structure, and the complex measurement process leads to excessively low measurement speed. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a measuring device for measuring the loose thickness of asphalt mixtures.

[0005] The technical solution includes a detection column and a handheld rod detachably connected to the detection column;

[0006] The detection column is cylindrical, with a display screen and a level bubble at the upper end and a cone at the lower end. A sensing ball is located at the lower end of the cone, and the display screen and the sensing ball are connected by several signal lines.

[0007] The sidewall of the detection column is provided with several vertical slots arranged in a circumferential array. Several protrusions are slidably arranged in each slot. The protrusions are connected to the detection column by an elastic element. Each signal line is located in one of the slots.

[0008] The side wall of the detection column is also provided with several scale lines, which are alternately arranged with the groove.

[0009] Preferably, the scale lines are engraved grooves, and the grooves are filled with a thermosensitive coating.

[0010] Preferably, the handheld lever is a telescopic lever, and the lower end of the handheld lever is detachably connected to the upper end of the detection column.

[0011] Preferably, a display screen and a spirit level are fixedly provided at the upper end of the handheld lever, and the display screen located at the upper end of the handheld lever is electrically connected to the display screen located at the upper end of the detection column.

[0012] The beneficial effects of the technical solution provided by this utility model embodiment are: through the collaborative work of electronic and mechanical dual modes, the detection accuracy and reliability are significantly improved; the detachable design and telescopic structure facilitate carrying and adjustment of the operating posture, reducing human fatigue. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0014] Figure 2 This is a schematic diagram of the detection column in an embodiment of the present invention.

[0015] The attached diagram is labeled as follows: 1. Detection column; 2. Handheld rod; 3. Display screen; 4. Level bubble; 5. Cone; 6. Induction ball; 7. Protrusion; 8. Scale line. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only for explaining this utility model and are not intended to limit it.

[0017] It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0018] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0019] In the description of this utility model, it should be noted that, 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 based on the specific circumstances.

[0020] Example 1

[0021] See Figures 1 to 2 This utility model provides a measuring device for measuring the loose thickness of asphalt mixture, including a detection column 1 and a hand-held rod 2 detachably connected to the detection column 1;

[0022] Assemble the handheld lever 2 and the detection column 1. The detection column 1 can be used alone or in conjunction with the handheld lever 2 to adapt to different measurement scenarios.

[0023] The detection column 1 is cylindrical. The upper end of the detection column 1 is equipped with a display screen 3 and a level bubble 4, and the lower end is equipped with a cone 5. The lower end of the cone 5 is equipped with a sensing ball 6. The display screen and the sensing ball 6 are connected by several signal lines.

[0024] The user observes the bubble level 4 to place the detection column 1 vertically. The cone-shaped body 5 facilitates the insertion of the detection column 1 into the asphalt mixture. When the sensing ball 6 contacts the road base, the detection column 1 cannot be inserted downward because the road base has been compacted by the roller. The sensing ball 6 contacts the compacted base to determine the measurement reference surface.

[0025] Furthermore, a battery is installed inside the detection column 1 to provide power to the display screen 3, the sensor ball 6, etc.

[0026] The side wall of the detection column 1 is provided with several vertical slots arranged in a circumferential array. Several protrusions 7 are slidably arranged in each slot. The protrusions 7 are connected to the detection column 1 through elastic elements. Each signal line is located in one of the slots.

[0027] The elastic element can be a spring, a sheet, etc., and the protrusion 7 remains in an outward convex state under the action of the elastic element.

[0028] When the detection column 1 is inserted into the asphalt mixture, the asphalt squeezes the protrusion 7, causing it to slide along the groove and contact the signal line inside the groove; assuming that the resistance is a fixed value when a single protrusion 7 contacts the signal line.

[0029] When N bumps 7 are in contact, the total resistance is R = N×a. The signal lines are connected in series.

[0030] The spacing between the bumps 7 is fixed. The number of bumps 7 N in contact can be deduced from the resistance value, and the insertion depth H = N × spacing can be calculated.

[0031] The number of contact bumps 7 can be deduced from the resistance value, thereby calculating the insertion depth. The display screen 3 converts the resistance value into thickness data through a preset algorithm and displays the calculated asphalt layer thickness value in real time.

[0032] Several scale lines 8 are also provided on the side wall of the detection column 1, and the scale lines 8 are alternately arranged with the slot.

[0033] Display screen 3 provides real-time data, and scale line 8 serves as a redundancy check to reduce errors in single reading mode;

[0034] The scale line 8 is an engraved groove, which is filled with heat-sensitive paint.

[0035] After the test column 1 is inserted into the asphalt mixture, the heat-sensitive coating in the engraved groove changes color with the change of ambient temperature.

[0036] Thermosensitive coatings exhibit improved color contrast at high temperatures, making it easier to read scale values ​​directly.

[0037] The handheld lever 2 is a telescopic lever, and the lower end of the handheld lever 2 is detachably connected to the upper end of the detection column 1.

[0038] The handheld pole 2 can be detachably connected to the detection column 1 by means of threaded connection or snap-on connection. Standing operation avoids bending over, reduces the fatigue of construction personnel, and is suitable for operators of different heights and complex terrain.

[0039] Telescopic poles are existing technology and will not be described in detail here. After extending the hand handle 2 to the desired length, the telescopic joint can be locked, and the pole length can be flexibly adjusted according to the user's height.

[0040] The upper end of the handheld lever 2 is fixedly equipped with a display screen 3 and a spirit level 4. The display screen 3 located at the upper end of the handheld lever 2 is electrically connected to the display screen 3 located at the upper end of the detection column 1.

[0041] When the handheld lever 2 is connected to the detection column 1, the display screens 3 at both ends synchronously display the measurement data in real time via the data cable;

[0042] The operator can read the data directly through the display screen 3 on the handheld lever 2 without having to bend over to observe the screen at the top of the detection column 1.

[0043] When using this utility model, the user observes the bubble level 4 to make the detection column 1 vertically placed. The cone-shaped body 5 facilitates the insertion of the detection column 1 into the asphalt mixture. When the sensing ball 6 contacts the road base, the detection column 1 cannot be inserted downward because the road base has been compacted by the road roller. The sensing ball 6 contacts the compacted base to determine the measurement reference surface.

[0044] When the detection column 1 is inserted into the asphalt mixture, the asphalt squeezes the protrusion 7, causing it to slide along the groove and contact the signal line inside the groove.

[0045] The number of contact bumps 7 can be deduced from the resistance value, thereby calculating the insertion depth. The display screen 3 converts the resistance value into thickness data through a preset algorithm and displays the calculated asphalt layer thickness value in real time.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A measuring device for measuring the loose thickness of asphalt mixture, characterized in that, It includes a detection column (1) and a handheld lever (2) detachably connected to the detection column (1); The detection column (1) is cylindrical. The upper end of the detection column (1) is provided with a display screen (3) and a level bubble (4), and the lower end is provided with a cone (5). The lower end of the cone (5) is provided with a sensing ball (6). The display screen and the sensing ball (6) are connected by several signal lines. The sidewall of the detection column (1) is provided with several vertical slots arranged in a circumferential array. Several protrusions (7) are slidably arranged in each slot. The protrusions (7) are connected to the detection column (1) by an elastic element. Each signal line is located in one of the slots. The side wall of the detection column (1) is also provided with several scale lines (8), and the scale lines (8) are alternately arranged with the slot.

2. The measuring device for measuring the loose thickness of asphalt mixture according to claim 1, characterized in that, The scale line (8) is an engraved groove, and the groove is filled with a thermosensitive coating.

3. The measuring device for measuring the loose thickness of asphalt mixture according to claim 2, characterized in that, The handheld lever (2) is a telescopic lever, and the lower end of the handheld lever (2) is detachably connected to the upper end of the detection column (1).

4. The measuring device for measuring the loose thickness of asphalt mixture according to claim 3, characterized in that, The upper end of the handheld lever (2) is fixedly provided with a display screen (3) and a spirit level (4). The display screen (3) located at the upper end of the handheld lever (2) is electrically connected to the display screen (3) located at the upper end of the detection column (1).

Images