Ruler for measuring bending diameter and straight section length of highway engineering steel bar

Abstract

The utility model provides a highway engineering steel bar bending diameter and straight section length measuring scale, which belongs to the technical field of steel bar measurement, and comprises a main scale body, the left side of the main scale body is provided with a diameter measuring scale, and the diameter measuring scale is composed of a plurality of disc scales with different sizes. Wherein the disc ruler comprises a fixed disc ruler integrally formed with the main ruler body and a plurality of movable disc rulers arranged on the left side of the fixed disc ruler through bolts, an extension ruler is arranged on the right side of the main ruler body in a sliding mode, and a guide wheel and a positioning device are further arranged between the extension ruler and the main ruler body; the problems that in the prior art, due to the fact that the bending shapes and angles of steel bars are different, the length and span are measured respectively, then an arc formula is used for calculation, operation of the method is tedious, errors are large, and accurate results are difficult to obtain are solved, and meanwhile the workload and time cost are increased due to multiple times of measurement and calculation; and improvement of the construction efficiency is not facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar measurement, in particular to a measuring ruler for the bending diameter and straight section length of steel bars in highway engineering. Background Art

[0002] In the construction of highway bridges and culverts, the bending diameter and straight section length of the steel bars are important indicators for measuring the quality of the steel bars, which directly affect the safety and stability of the project. The "Technical Specifications for Highway Bridge and Culvert Construction" has clear provisions on the hook shape, bending diameter and straight section length of the stirrups, aiming to ensure that the steel bars can exert effective mechanical properties.

[0003] The traditional method of measuring the diameter of steel bar bending relies on tape measures and measuring pliers. The length and span are measured and then calculated using the arc formula. However, due to the different shapes and angles of steel bar bending, this method is not only cumbersome to operate, but also has large errors and is often difficult to obtain accurate results. At the same time, multiple measurements and calculations also increase the workload and time cost, which is not conducive to improving construction efficiency. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a measuring ruler for the bending diameter and straight section length of steel bars in highway engineering, which is used to solve the above problems.

[0005] The utility model is achieved in this way:

[0006] A measuring ruler for the bending diameter and straight section length of steel bars in highway engineering, comprising a main ruler body, a diameter measuring ruler arranged on the left side of the main ruler body, the diameter measuring ruler consisting of a plurality of disc rulers of different sizes, wherein the disc rulers comprise a fixed disc ruler integrally formed with the main ruler body, and a plurality of movable disc rulers arranged on the left side of the fixed disc ruler by bolts, an extension ruler slidably arranged on the right side of the main ruler body, and a guide wheel and a positioning device are further arranged between the extension ruler and the main ruler body.

[0007] In an embodiment of the present utility model, the movable disc scale has 8 pieces.

[0008] In an embodiment of the utility model, the size of the fixed disc scale is 25 mm, and the sizes of the movable disc scale from bottom to top are 22 mm, 20 mm, 18 mm, 16 mm, 14 mm, 12 mm, 10 mm, 8 mm, and 6 mm respectively.

[0009] In an embodiment of the utility model, a placement groove is provided on the right side of the main ruler body, and sliding grooves are symmetrically provided on the opposite side of the placement groove.

[0010] In an embodiment of the utility model, the left side of the extension ruler has a connecting portion, a guide wheel is provided near the left side in the length direction of the connecting portion, and a positioning device is provided near the right side in the length direction of the connecting portion, the guide wheel and the positioning device are respectively engaged with the slide groove, the slide groove is provided with a protrusion near the right end, and a positioning slot is provided on the protrusion, and when the extension ruler slides out to the right, the positioning device is engaged with the positioning slot.

[0011] In an embodiment of the utility model, the guide wheel includes a hinge support and a first roller, the hinge support is arranged on the left side of the length direction of the connecting part, the first roller is arranged on the hinge support, and the first roller is in conflict with the slide groove.

[0012] In an embodiment of the utility model, the positioning slot includes an extrusion bin and a second roller, the extrusion bin is arranged on the right side in the length direction of the connecting part, the second roller is movably arranged inside the extrusion bin, and guide holes for the movement of the central axis of the second roller are opened on the front and rear walls of the extrusion bin, and a spring sheet is arranged inside the extrusion bin, which extrude the second roller to the outside of the extrusion bin and interfere with the slide groove.

[0013] The beneficial effects of the utility model are as follows: by integrating disc rulers of various sizes, fast and accurate measurement of the bending diameter of steel bars is achieved. The user only needs to select a disc ruler of corresponding size for measurement according to the requirements of the construction drawings, without complicated calculations and multiple measurements, which greatly improves the measurement efficiency; secondly, the measuring ruler adopts a sliding mechanism combining a guide wheel and a positioning device to ensure the stability and accuracy of the extended ruler during the sliding process. The guide wheel provides a stable guiding effect for the extended ruler to avoid jamming or deviation from the track during the sliding process, and the positioning device ensures that the extended ruler can stay firmly in the position when sliding to the far right without shaking or slipping; the structural design of the measuring ruler is reasonable, the operation is simple, and the difficulty of use is reduced. The user can quickly master the use method without complicated training or learning, which further improves the measurement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A schematic diagram of the structure of the measuring ruler provided by the embodiment of the utility model;

[0016] Figure 2 A top view of the measuring ruler provided for the embodiment of the utility model;

[0017] Figure 3 A schematic diagram of a partial cross-sectional structure of a main ruler body provided in an embodiment of the utility model;

[0018] Figure 4 for Figure 3 The structural diagram at A in the middle;

[0019] Figure 5 This is a schematic cross-sectional structural diagram of a positioning device provided in an embodiment of the utility model.

[0020] In the figure: 10, main ruler body; 101, placement slot; 102, slide slot; 103, raised portion; 104, positioning slot; 20, extension ruler; 21, connecting portion; 22, guide wheel; 221, hinge support; 222, first roller; 23, positioning device; 231, extrusion chamber; 2311, guide hole; 2312, spring piece; 232, second roller; 30, diameter measuring ruler; 31, disc ruler; 311, fixed disc ruler; 312, movable disc ruler; 32, bolt. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1-3As shown, the utility model provides a measuring ruler for the bending diameter and straight section length of steel bars in highway engineering, comprising a main ruler body 10, a diameter measuring ruler 30 is arranged on the left side of the main ruler body 10, and the diameter measuring ruler 30 is composed of a plurality of disc rulers 31 of different sizes, wherein the disc ruler 31 comprises a fixed disc ruler 311 integrally formed with the main ruler body 10, and a plurality of movable disc rulers 312 arranged on the left side of the fixed disc ruler 311 by bolts 32. This design enables the corresponding disc ruler 31 to be rotated and slid out as needed during measurement. Thereby, fast and accurate measurement of steel bars with different bending diameters can be achieved. An extension ruler 20 is slidably arranged on the right side of the main ruler body 10 to meet the measurement requirements of straight sections of steel bars of different lengths. A guide wheel 22 and a positioning device 23 are also arranged between the extension ruler 20 and the main ruler body 10. The guide wheel 22 makes the sliding of the extension ruler 20 smoother, and the positioning device 23 ensures that the extension ruler 20 can be stably fixed in the required position during the measurement process, thereby avoiding measurement errors caused by shaking or offset, and ensuring the accuracy of measurement and the stability of operation.

[0024] In this embodiment, there are 8 movable disc rulers 312, and the size of the fixed disc ruler 311 is 25mm, and the sizes of the movable disc ruler 312 from bottom to top are 22mm, 20mm, 18mm, 16mm, 14mm, 12mm, 10mm, 8mm, and 6mm respectively. When measuring, according to the requirements of the construction drawings, the disc ruler 31 of the corresponding size is selected. These movable disc rulers 312 can be rotated and slid out along the bolt 32 as the central axis. The operation is simple and the response is rapid. The selected disc ruler 31 is placed at the stirrup hook, and combined with the scale on the main ruler body 10, the bending diameter of the stirrup can be quickly read. At the same time, since the main ruler body 10 itself has a length measurement function, it can also directly measure the straight section length of the stirrup, which not only improves the accuracy and efficiency of the measurement, but also simplifies the operation process. The measurement personnel do not need to change tools many times or perform complex calculations to achieve simultaneous measurement of the bending diameter and the straight section length of the stirrup, thereby greatly saving time and labor costs.

[0025] like Figure 3As shown, a placement groove 101 is provided on the right side of the main ruler body 10 for accommodating and fixing the extension ruler 20, and a slide groove 102 is symmetrically provided on the opposite side of the placement groove 101. These slide grooves 102 not only provide a track for the sliding of the extension ruler 20, but also ensure the stability and smoothness of the sliding. The extension ruler 20 has a connecting portion 21 on the left side, and a guide wheel 22 is provided near the left side in the length direction of the connecting portion 21. Its function is to provide guidance during the sliding process of the extension ruler 20 to ensure a smooth and unobstructed sliding process. A positioning device 23 is provided near the right side in the length direction of the connecting portion 21. The device is provided at the extension ruler 20. When the ruler 20 slides to a specific position, it will engage with the positioning slot 104 on the raised portion 103 on the right side of the slide groove 102, thereby fixing the position of the extended ruler 20. This design allows the extended ruler 20 to not only obtain a stable guiding effect through the guide wheel 22 when sliding to the right, thereby avoiding jamming or deviation from the track during the sliding process, but also when the extended ruler 20 slides to the far right, that is, when it extends to the maximum position with the main ruler body 10, the positioning device 23 will automatically engage with the positioning slot 104, thereby ensuring that the extended ruler 20 stays firmly in this position without shaking or slipping.

[0026] Specifically, Figure 4-5 As shown, the guide wheel 22 includes a hinge support 221 and a first roller 222. The hinge support 221 is arranged on the left side of the length direction of the connecting part 21. The first roller 222 is arranged on the hinge support 221. The first roller 222 conflicts with the slide groove 102. The positioning slot 104 includes an extrusion bin 231 and a second roller 232. The extrusion bin 231 is arranged on the right side of the length direction of the connecting part 21. The second roller 232 is movably arranged inside the extrusion bin 231. A guide hole 2311 for the central axis of the second roller 232 to move is provided on the front and rear bin walls of the extrusion bin 231. A spring piece 2312 is arranged inside the extrusion bin 231. The spring piece 2312 extrude the second roller 232 to the outside of the extrusion bin 231 and conflicts with the slide groove 102.

[0027] In one embodiment, a notch is provided on the right side of the bottom of the main ruler body 10, and a flange is provided on the right side of the bottom of the extension ruler 20, so that when the user needs to pull out the extension ruler 20, the flange can be used for operation, which not only improves the convenience of operation, but also enhances the user experience.

[0028] Specifically, the working principle of the measuring ruler for the bending diameter and straight section length of steel bars in highway engineering is as follows: during the measurement process, first, according to the requirements of the construction drawings, the disc ruler 31 of the corresponding size is rotated and slid out from the main ruler body 10, and placed at the stirrup hook for measurement. When the straight section length of the stirrup needs to be measured, the extension ruler 20 is pulled out from the placement groove 101 of the main ruler body 10, and then one end of the stirrup is aligned with one end of the main ruler body 10. At this time, the main ruler body 10 and the extension ruler 20 together constitute a complete measuring tool, which can measure the straight section length. Through the above structure, the problem that the method in the prior art is complicated, has large errors, and is difficult to obtain accurate results due to the different shapes and angles of the steel bar bending, and the length and span are measured separately, and then the arc formula is used for calculation. At the same time, multiple measurements and calculations also increase the workload and time cost, which is not conducive to improving construction efficiency.

[0029] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. A measuring ruler for measuring the bending diameter and straight section length of steel bars in highway engineering, characterized in that: The invention comprises a main ruler body (10), a diameter measuring ruler (30) is arranged on the left side of the main ruler body (10), the diameter measuring ruler (30) is composed of a plurality of disc rulers (31) of different sizes, wherein the disc rulers (31) comprise a fixed disc ruler (311) integrally formed with the main ruler body (10), and a plurality of movable disc rulers (312) arranged on the left side of the fixed disc ruler (311) by bolts (32), an extension ruler (20) is slidably arranged on the right side of the main ruler body (10), and a guide wheel (22) and a positioning device (23) are further arranged between the extension ruler (20) and the main ruler body (10).

2. A highway engineering steel bar bending diameter and straight section length measuring ruler according to claim 1, characterized in that: The movable disc scale (312) has 8 pieces.

3. A highway engineering steel bar bending diameter and straight section length measuring ruler according to claim 2, characterized in that: The size of the fixed disc scale (311) is 25 mm, and the sizes of the movable disc scale (312) from bottom to top are 22 mm, 20 mm, 18 mm, 16 mm, 14 mm, 12 mm, 10 mm, 8 mm, and 6 mm respectively.

4. A highway engineering steel bar bending diameter and straight section length measuring ruler according to claim 1, characterized in that: A placement groove (101) is provided on the right side of the main ruler body (10), and a sliding groove (102) is symmetrically provided on the opposite side of the placement groove (101).

5. A highway engineering steel bar bending diameter and straight section length measuring ruler according to claim 4, characterized in that: The left side of the extension ruler (20) is provided with a connecting portion (21), a guide wheel (22) is arranged near the left side in the length direction of the connecting portion (21), a positioning device (23) is arranged near the right side in the length direction of the connecting portion (21), the guide wheel (22) and the positioning device (23) are respectively engaged with the slide groove (102), the slide groove (102) is provided with a protrusion (103) near the right end, and a positioning slot (104) is arranged on the protrusion (103), and when the extension ruler (20) slides out to the right, the positioning device (23) is engaged with the positioning slot (104).

6. A highway engineering steel bar bending diameter and straight section length measuring ruler according to claim 5, characterized in that: The guide wheel (22) comprises a hinge support (221) and a first roller (222); the hinge support (221) is arranged on the left side of the length direction of the connecting portion (21); the first roller (222) is arranged on the hinge support (221); and the first roller (222) is in contact with the slide groove (102).

7. A highway engineering steel bar bending diameter and straight section length measuring ruler according to claim 5, characterized in that: The positioning slot (104) comprises a squeezing bin (231) and a second roller (232); the squeezing bin (231) is arranged on the right side in the length direction of the connecting portion (21); the second roller (232) is movably arranged inside the squeezing bin (231); and a guide hole (2311) for the central axis of the second roller (232) to move is provided on the front and rear bin walls of the squeezing bin (231); a spring sheet (2312) is provided inside the squeezing bin (231); the spring sheet (2312) squeezes the second roller (232) out of the squeezing bin (231) and contacts the slide groove (102).

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