Rebar protective layer thickness measurement positioning ruler

Abstract

This utility model discloses a positioning ruler for measuring the thickness of the concrete cover of reinforcing bars before construction, including a positioning frame and a steel ruler. The positioning frame includes a grooved buckle, with a grooved slider extending downward from the bottom edge of the buckle. The bottom edge of the buckle forms the upper stop edge of the slider, and the lower end of the slider extends upward to form a lower stop edge. One end of the steel ruler is movably connected to the grooved slider. When measuring the thickness of the concrete cover, one end of the steel ruler rests against the inside of the formwork, and the inner side of the vertical edge of the buckle rests against the outer circle of the main reinforcement of the reinforced concrete structure. This utility model has a simple structure, small size, and is easy to carry. It can effectively avoid reading errors caused by viewing angle issues, maximize the accuracy of readings, and thus ensure the pass rate of concrete cover thickness detection. It is easy to operate and saves time and effort. This utility model has a large detection range and is suitable for reinforced concrete structures with limited internal space within a certain range.

Description

Technical Field

[0001] This utility model relates to a tool for measuring the thickness of the concrete cover of reinforcing bars, and more particularly to a tool for measuring the thickness of the concrete cover of reinforcing bars after the formwork is installed before pouring concrete, belonging to the technical field of construction measurement tools for reinforced concrete engineering. Background Technology

[0002] The pre-construction concrete cover thickness refers to the distance from the outer edge of the main reinforcing bars to the inner side of the formwork after the formwork is installed, before concrete pouring. Deviations in the concrete cover thickness exceeding the limit can cause excessive corrosion of the reinforcing bars and affect the structural load-bearing capacity, thus impacting structural durability. In the construction industry, concrete cover thickness inspection has become a fundamental task, with strict requirements in national and industry standards. Pre-construction inspection is essential to ensure the concrete cover thickness meets post-construction standards. Currently, pre-construction concrete cover thickness inspection generally uses a handheld tape measure. However, this method is prone to significant reading errors due to the viewing angle in reinforced concrete structures with limited internal spaces, leading to inaccurate readings and affecting the pass rate. Utility Model Content

[0003] The purpose of this invention is to provide a positioning ruler for measuring the thickness of the concrete cover of reinforcing bars before construction, which is simple in structure, convenient in measurement, and accurate in reading.

[0004] This utility model is achieved through the following technical solution:

[0005] A pre-construction positioning ruler for measuring the thickness of the concrete cover of reinforcing bars includes a positioning frame and a steel ruler. The positioning frame includes a grooved buckle, the bottom edge of which extends downward to form a grooved slider, the bottom edge of which forms the upper stop edge of the grooved slider, and the lower end of which extends upward to form a lower stop edge. One end of the steel ruler is movably connected to the grooved slider. When measuring the thickness of the concrete cover of reinforcing bars, one end of the steel ruler rests against the inner side of the formwork, and the inner side of the vertical edge of the grooved buckle rests against the outer circle of the main reinforcing bar of the reinforced concrete structure.

[0006] The objective of this utility model can also be further achieved through the following technical measures.

[0007] The aforementioned pre-construction steel reinforcement protective layer thickness measurement positioning ruler, wherein one end face of the groove-shaped slider is flush with the inner side of the vertical edge of the groove-shaped buckle.

[0008] The aforementioned pre-construction steel reinforcement protective layer thickness measurement positioning ruler, wherein the outer surfaces of the upper and lower retaining edges are both inclined surfaces.

[0009] The aforementioned pre-construction steel reinforcement protective layer thickness measurement positioning ruler has one end face that is arc-shaped.

[0010] This utility model has a simple structure, small size, and is easy to carry. During measurement, the positioning frame works in conjunction with a steel ruler. The value can be read by aligning one end face of the grooved slider with the corresponding scale line on the steel ruler. This effectively avoids reading errors caused by viewing angle issues, maximizing the accuracy of the reading and thus ensuring the pass rate of the rebar protective layer thickness inspection. It is easy to operate, saving time and effort. This utility model has a wide detection range and is suitable for reinforced concrete structures with limited internal space within a certain range.

[0011] The advantages and features of this utility model will be illustrated and explained through the following non-limiting description of preferred embodiments, which are given by way of example only with reference to the accompanying drawings. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is the front view of the positioning frame of this utility model;

[0014] Figure 3 yes Figure 2 The left view;

[0015] Figure 4 yes Figure 3 The left view;

[0016] Figure 5 This is a structural schematic diagram of the utility model in use. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] The positioning frame of this utility model is integrally formed by 3D printing.

[0019] like Figure 1 As shown, this utility model includes a positioning frame 1 and a steel ruler 2. Figure 2 , Figure 3 and Figure 4 As shown, the positioning frame 1 includes a slotted buckle 11. The slotted buckle 11 ensures flexibility while effectively positioning the measurement target. The bottom edge 12 of the slotted buckle 11 extends downwards to form a slotted slider 13, which serves as the upper stop of the slotted slider 13. The lower end of the slotted slider 13 extends upwards to form a lower stop 14. Both the upper and lower stops 14 have beveled surfaces 10 on their outer sides, ensuring the steel ruler 2 is stably supported within the slotted slider 13. The left end face 131 of the slotted slider 13 is flush with the inner side 111 of the vertical edge of the slotted buckle 11, facilitating accurate readings during measurement. The left end of the steel ruler 2 can move relative to the slotted slider 13; its left end face 21 is arc-shaped, reducing errors caused by the square end against the circular inner wall of a template or similar material.

[0020] like Figure 5 As shown, when measuring the thickness h of the concrete cover, place the steel ruler 2 on the part of the reinforced concrete structure to be measured, and place the left end face of the steel ruler 2 against the inner side of the template 3. At this time, slide the positioning frame 1 so that the inner side of the vertical edge of the groove buckle 11 rests against the outer circle of the main reinforcement 4 of the reinforced concrete structure, thereby positioning the measurement target. Observe the scale line corresponding to the left end face of the groove slider 13 and the steel ruler 2, and read the reading, which is the thickness h of the concrete cover.

[0021] In addition to the above embodiments, the present invention may have other implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by the present invention.

Claims

1. A positioning ruler for measuring the thickness of the concrete cover of reinforcing bars before construction, characterized in that: The system includes a positioning frame and a steel ruler. The positioning frame includes a slotted buckle, the bottom edge of which extends downward to form a slotted slider, the bottom edge of which forms the upper stop edge of the slotted slider, and the lower end of the slotted slider extends upward to form a lower stop edge. One end of the steel ruler is movably connected to the slotted slider. When measuring the thickness of the concrete cover, one end of the steel ruler rests against the inner side of the template, and the inner side of the vertical edge of the slotted buckle rests against the outer circle of the main reinforcement of the reinforced concrete structure.

2. The pre-construction reinforcement protective layer thickness measuring and positioning ruler as described in claim 1, characterized in that: One end face of the grooved slider is flush with the inner side of the vertical edge of the grooved buckle.

3. The pre-construction reinforcement protective layer thickness measuring and positioning ruler as described in claim 1, characterized in that: Both the upper and lower guard edges have beveled outer surfaces.

4. The pre-construction reinforcement protective layer thickness measuring and positioning ruler as described in claim 1, characterized in that: One end face of the steel ruler is arc-shaped.

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