Concrete thickness detection device for highway engineering

Abstract

The utility model discloses a highway engineering concrete thickness detection device comprising a handle, one end of the handle is fixedly connected with an L-shaped steel bar, and two sides of the L-shaped steel bar are fixedly connected with auxiliary arc plates; and two groups of scale marks are arranged at the top of the L-shaped steel bar. According to the utility model, through the arrangement of the L-shaped steel bar, the auxiliary arc plate, the scale marks, the slide rail, the movable eraser, the movable seat, the spring piston and the transverse cutting type marking pen, the right-angle structure of the L-shaped steel bar can be conveniently aligned with the end surface of the sample core, and the auxiliary arc plate which can be attached to the curved surface of the outer wall of the sample core is matched, so that the alignment and straightness during measurement are ensured; alignment deviation and inclination errors caused by traditional manual operation are avoided; during measurement, data are rapidly marked through the sliding rail and the transverse cutting type marking pen, a batch processing mode of first marking and then centralized recording is achieved, the traditional multiple measurement-recording process is simplified into single operation, the operation steps are simplified, and the measurement efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thickness detection, in particular to a device for detecting the thickness of concrete in highway engineering. Background Technique

[0002] The detection of the thickness of concrete in highway engineering is a key link to ensure that the construction quality of the road surface or structural layer meets the design requirements. By accurately measuring the actual thickness of the concrete layer, it can be verified whether it meets the design indicators such as load-bearing capacity, durability, and crack resistance, avoiding a decrease in structural strength or premature damage caused by insufficient thickness, or material waste caused by excessive thickness. The detection results are directly related to project acceptance, cost control, and later maintenance decisions, and at the same time provide data support for the improvement of construction technology. It is an important quality control means to ensure the long-term safe operation of highway engineering.

[0003] The core drilling method is one of the traditional methods for detecting the thickness of concrete in highway engineering. Its principle is to use a core drill to drill a cylindrical core sample on the concrete structure, and determine the actual thickness of the concrete layer by directly measuring the height of the core sample. This method is simple to operate, the results are intuitive, and it can also detect parameters such as the strength and density of concrete at the same time. Therefore, it is widely used in project acceptance and quality assessment.

[0004] At present, during the detection process of the thickness of concrete core samples, the detection personnel need to use tools such as a steel ruler for manual measurement: first, align one end of the steel ruler with the edge of the core sample on one side of the concrete road surface, keep the ruler body straight, then read and record the thickness data, and then rotate the core sample and repeat the above operations multiple times to complete the detection. This process has two major technical pain points: one is that the steps of repeated measurement and recording are cumbersome, resulting in low efficiency; the other is that manual operation is prone to situations where the measuring tool is not aligned or placed obliquely. These two kinds of human errors will significantly affect the accuracy of the measurement results. Therefore, improvements are proposed. Content of the Utility Model

[0005] The utility model is proposed to solve the disadvantages existing in the prior art, and provides a device for detecting the thickness of concrete in highway engineering.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A device for detecting the thickness of concrete in highway engineering, including a handle, one end of the handle is fixedly connected with an L-shaped steel bar, and auxiliary arc plates are fixedly connected to both sides of the L-shaped steel bar;

[0007] Two groups of scale marks are arranged on the top of the L-shaped steel bar;

[0008] Two slide rails are symmetrically and fixedly connected to the top of the L-shaped steel bar, and a movable wiper is slidably connected to the inner sides of the two slide rails, and a hand-tightening bolt is installed on the movable wiper;

[0009] A movable seat is slidably connected to the outer sides of the two slide rails. A spring piston is installed inside the movable seat, and a cross-cut marker pen is fixedly installed at the middle position of the spring piston.

[0010] Further, one set of the scale marks is located at the top edge of the L-shaped steel bar, and the other set of scale marks is located in the middle of the top of the L-shaped steel bar, which is convenient for marking the scale.

[0011] Further, the movable eraser includes a movable block, and the movable block is slidably connected between the two slide rails. A hand-tightening bolt passes through the movable block and is threadedly connected thereto. A whiteboard eraser is press-fitted at the bottom of the movable block, and the whiteboard eraser abuts against the L-shaped steel bar. A silica gel pad is fixedly connected to the top of the movable block. The slide rails have a limiting effect on the movable block, which can ensure the stability of the movement of the movable block.

[0012] Further, the spring piston includes a piston plate, and the outer wall of the piston plate is in sealed contact with the inner wall of the movable seat. Two springs are fixedly connected between the bottom of the piston plate and the movable seat. The arrangement of the springs is conducive to the reset movement of the movable plate.

[0013] Further, the cross-cut marker pen includes a pen barrel, and the piston plate is fixedly sleeved on the outer surface of the pen barrel. A plate-shaped cotton core is arranged inside the pen barrel. A cutter-type polyester fiber board is embedded at the bottom of the plate-shaped cotton core, and the cutter-type polyester fiber board passes through the pen barrel and is fixedly connected to the pen barrel. A pen cap is buckled on the top of the pen barrel. After the pen cap is opened, it is convenient to replace the internal plate-shaped cotton core.

[0014] Further, the plate-shaped cotton core is filled with water-based ink, and the water-based ink has the characteristics of being easy to erase and is suitable for the use of this application.

[0015] Further, two pointers are symmetrically and fixedly connected to the bottom of the movable seat. The pointers and the scale marks can be used to judge the position of the movable seat.

[0016] The beneficial effects of the present utility model:

[0017] When the present utility model is in use, for a highway engineering concrete thickness detection device, through the arranged L-shaped steel bar, auxiliary arc plate, scale marks, slide rails, movable eraser, movable seat, spring piston and cross-cut marker pen, the right-angle structure of the L-shaped steel bar can be conveniently aligned with the end face of the sample core. Cooperating with the auxiliary arc plate that can fit the outer wall curved surface of the sample core, it ensures the alignment and straightness during measurement, and solves the alignment deviation and inclination error caused by traditional manual operation; during measurement, the data is quickly marked through the slide rails and the cross-cut marker pen, realizing a batch processing mode of "mark first and then centrally record", simplifying the traditional multiple measurement-recording process into a single operation, simplifying the operation steps and improving the measurement efficiency. Description of the Drawings

[0018] To more clearly illustrate the technical solution of the present utility model, the accompanying drawings required for use in the following description of the specific embodiments will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0019] Figure 1 : Perspective view of the present utility model;

[0020] Figure 2 : of the present utility model Figure 1 Enlarged view of part A in;

[0021] Figure 3 : Side view sectional view of the movable eraser of the present utility model;

[0022] Figure 4 : Front view sectional view of the movable seat of the present utility model.

[0023] The reference numerals in the drawings are as follows:

[0024] 1. Handle; 2. Auxiliary arc plate; 3. L-shaped steel bar; 4. Scale mark; 5. Slide rail; 6. Pen cap; 7. Pen barrel; 8. Movable seat; 9. Movable block; 10. Hand-tightening bolt; 11. Silicone pad; 12. Whiteboard eraser; 13. Plate-shaped cotton core; 14. Piston plate; 15. Knife-cut polyester fiber plate; 16. Spring; 17. Pointer. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than 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 efforts belong to the scope of protection of the present utility model.

[0026] As Figures 1 to 4 shown, it relates to a device for detecting the thickness of concrete in highway engineering, including a handle 1. One end of the handle 1 is fixedly connected with an L-shaped steel bar 3, and auxiliary arc plates 2 are fixedly connected to both sides of the L-shaped steel bar 3.

[0027] Two groups of scale marks 4 are arranged on the top of the L-shaped steel bar 3. One group of scale marks 4 is located at the top edge of the L-shaped steel bar 3, and the other group of scale marks 4 is located in the middle of the top of the L-shaped steel bar 3.

[0028] Two sliding rails 5 are symmetrically and fixedly connected to the top of the L-shaped steel bar 3. An activity eraser is slidably connected to the inner sides of the two sliding rails 5. A hand-tightening bolt 10 is installed on the activity eraser. The end face of the screw rod of the hand-tightening bolt 10 is provided with anti-slip threads. After the hand-tightening bolt 10 abuts against the L-shaped steel bar 3, the locking of the activity eraser can be realized. The activity eraser includes an activity block 9, and the activity block 9 is slidably connected between the two sliding rails 5. The hand-tightening bolt 10 penetrates through the activity block 9 and is threadedly connected thereto. A whiteboard eraser 12 is press-fitted at the bottom of the activity block 9. The press-fitting is beneficial for replacing the whiteboard eraser 12, and the whiteboard eraser 12 abuts against the L-shaped steel bar 3. A silica gel pad 11 is fixedly connected to the top of the activity block 9. The setting of the silica gel pad 11 increases the moving resistance of the activity seat 8.

[0029] An activity seat 8 is slidably connected to the outer sides of the two sliding rails 5. A spring piston is installed inside the activity seat 8. The spring piston includes a piston plate 14, and the outer wall of the piston plate 14 is in sealing abutment with the inner wall of the activity seat 8. Two springs 16 are fixedly connected between the bottom of the piston plate 14 and the activity seat 8. The two springs 16 are symmetrically arranged to provide a constant restoring force to ensure that the cross-cut marker pen can quickly return to its position after each marking.

[0030] A cross-cut marker pen is fixedly installed at the middle position of the spring piston. The cross-cut marker pen includes a pen barrel 7, and the piston plate 14 is fixedly sleeved on the outer surface of the pen barrel 7. A plate-shaped cotton core 13 is provided inside the pen barrel 7. A cutter-type polyester fiber board 15 is embedded at the bottom of the plate-shaped cotton core 13. The cutter-type polyester fiber board 15 penetrates through the pen barrel 7 and is fixedly connected to the pen barrel 7. A pen cap 6 is buckled on the top of the pen barrel 7. Air holes penetrating to the inside are opened on the pen cap 6. The air holes are used to balance the air pressure inside and outside the pen barrel 7. The plate-shaped cotton core 13 is filled with water-based ink. With the unique ink supply structure of the plate-shaped cotton core 13, in cooperation with the cutter-type polyester fiber board 15 (the cutter-type polyester fiber board 15 adopts a 0.2 mm ultra-thin blade design), a marking line with a uniform width can be formed on the surface of the L-shaped steel bar 3.

[0031] Two pointers 17 are symmetrically and fixedly connected to the bottom of the activity seat 8. The setting of the pointers 17 is beneficial for judging the position of the activity seat 8.

[0032] Working principle:

[0033] Step 1: Initial positioning

[0034] Hold the handle 1, press the right-angle end of the L-shaped steel bar 3 against the end face of the concrete sample core, and at the same time make the auxiliary arc plates 2 on both sides fit the curved outer wall of the sample core to ensure that the measurement reference is vertical and without inclination.

[0035] Step 2: Thickness measurement

[0036] Slide the movable seat 8 along the slide rail 5 to drive the pointer 17 to move to the break point position of the concrete layer. At this time, the value corresponding to the scale mark 4 is the thickness value of the concrete layer.

[0037] Step 3: Automatic marking

[0038] Press the pen cap 6 to push the pen barrel 7 and the cutter-type polyester fiber board 15 at the bottom to move downward, leaving a clear mark on the surface of the L-shaped steel bar 3. After releasing, the spring 16 and the piston plate 14 make the marker pen reset automatically.

[0039] Step 4: Multi-angle measurement

[0040] Rotate the sample core and repeat the above steps to mark multiple measurement points on the L-shaped steel bar 3 to ensure the comprehensiveness of the data.

[0041] Step 5: Data recording and cleaning

[0042] After the measurement is completed, uniformly read and record the scale values corresponding to the marked positions.

[0043] Loosen the hand-tightened bolt 10, push the movable block 9 to drive the whiteboard eraser 12 to wipe the marks, and after cleaning, reset and lock the bolt.

[0044] Slide the movable seat 8 back above the movable block 9 so that the silicone pad 11 abuts against the movable seat 8 to complete the reset for the next use.

[0045] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific implementation manners. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the art in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A highway engineering concrete thickness detection device, comprising a handle (1), characterized in that: One end of the handle (1) is fixedly connected to an L-shaped steel bar (3), and both sides of the L-shaped steel bar (3) are fixedly connected to auxiliary arc plates (2); Two groups of scale marks (4) are provided on the top of the L-shaped steel bar (3); Two slide rails (5) are symmetrically fixedly connected to the top of the L-shaped steel bar (3); a movable wiper is slidably connected to the inner sides of the two slide rails (5); and the movable wiper is installed with a hand-tightening bolt (10); The outer sides of the two slide rails (5) are slidably connected to a movable seat (8), a spring piston is installed inside the movable seat (8), and a cross-cutting marker is fixedly installed in the middle of the spring piston.

2. A highway engineering concrete thickness detection device according to claim 1, characterized in that: One group of the scale marks (4) is located at the top edge of the L-shaped steel bar (3), and the other group of scale marks (4) is located in the middle of the top of the L-shaped steel bar (3).

3. A highway engineering concrete thickness detection device according to claim 1, characterized in that: The movable eraser comprises a movable block (9), and the movable block (9) is slidably connected to two slide rails (5), and a hand-tightening bolt (10) is arranged through the movable block (9) and is threadedly connected thereto, a whiteboard eraser (12) is extruded and embedded at the bottom of the movable block (9), and the whiteboard eraser (12) abuts against the L-shaped steel bar (3), and a silicone pad (11) is fixedly connected to the top of the movable block (9).

4. A highway engineering concrete thickness detection device according to claim 3, characterized in that: The spring piston comprises a piston plate (14), and the outer wall of the piston plate (14) is in sealing contact with the inner wall of the movable seat (8). Two springs (16) are fixedly connected between the bottom of the piston plate (14) and the movable seat (8).

5. A highway engineering concrete thickness detection device according to claim 4, characterized in that: The cross-cutting marker comprises a pen barrel (7), wherein a piston plate (14) is fixedly sleeved on the outer surface of the pen barrel (7), a plate-type cotton core (13) is arranged inside the pen barrel (7), a cutter-type polyester fiber board (15) is embedded at the bottom of the plate-type cotton core (13), and the cutter-type polyester fiber board (15) is arranged through the pen barrel (7) and is fixedly connected to the pen barrel (7), and a pen cap (6) is buckled on the top of the pen barrel (7).

6. A highway engineering concrete thickness detection device according to claim 5, characterized in that: The plate-type cotton core (13) is filled with water-based ink.

7. A highway engineering concrete thickness detection device according to claim 1, characterized in that: Two pointers (17) are symmetrically fixedly connected to the bottom of the movable seat (8).

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