Tool for measuring inner diameter of bent arc of reinforcing steel bar

Abstract

The utility model discloses a tool for measuring the inner diameter of a bent arc of a reinforcing steel bar, which comprises a measuring table with a plurality of bases, three fixed upright posts are arranged on the measuring table, limiting rollers are arranged on the three fixed upright posts, two of the limiting rollers are symmetrically arranged, and the other two of the limiting rollers are symmetrically arranged. Wherein two limiting rollers are located above the other limiting roller, a working cavity is formed in the measuring table, a working screw rod is rotationally connected into the working cavity, the directions of threads on the two sides of the working screw rod are opposite, the working screw rod rotationally penetrates through the measuring table, a working sliding rod is further fixedly connected into the working cavity, and the working sliding rod is movably connected with the working cavity. Two working sliding blocks are connected to the working sliding rod in a sliding mode, and the two working sliding blocks are both in threaded connection with the working threaded rod. According to the utility model, the reinforcing steel bar can be fully fixed when a worker measures the inner diameter of the bent arc of the reinforcing steel bar, and the problem of large measurement error caused by sliding of the reinforcing steel bar is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar processing, in particular to a tool for measuring the inner diameter of a steel bar bending arc. Background Art

[0002] Rebar refers to steel used for reinforced concrete and prestressed reinforced concrete. The cross-section of the rebar is round, and sometimes square with rounded corners. Rebar processing generally goes through four steps: rust removal, straightening, cutting, and forming. It is mainly used for various large, heavy, light thin-walled and high-rise building structures. It is divided into three types: plain round rebar, ribbed rebar, and twisted rebar.

[0003] During the production and processing of steel bars, some steel bars need to be bent. In order to understand their bending conditions more accurately, workers need to measure the inner diameter of the bend. Existing steel bar bend inner diameter measurement tools mainly use a tape measure to fit the outer surface of the steel bar, and then read the tape measure according to the scale to measure the inner diameter of the bend. However, due to the lack of fixation of the steel bar, slippage will occur during the measurement process, resulting in an offset between the tape measure and the steel bar, which greatly increases the measurement error and seriously affects the workers' measurement of steel bar parameters.

[0004] Therefore, we propose a tool for measuring the inner diameter of steel bar bends to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and provides a tool for measuring the inner diameter of a steel bar bending arc.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A tool for measuring the inner diameter of a steel bar bending arc comprises a measuring platform with multiple bases, wherein the measuring platform is provided with three fixed columns, and each of the three fixed columns is provided with a limiting roller, wherein two of the limiting rollers are symmetrically arranged, and wherein two of the limiting rollers are arranged above another limiting roller, and a working cavity is provided in the measuring platform, and a working screw is rotatably connected in the working cavity, and the threads on both sides of the working screw are in opposite directions, and the working screw rotates and penetrates the measuring platform, and a working sliding rod is also fixedly connected in the working cavity, and two working sliding blocks are slidably connected to the working sliding rod, and the two working sliding blocks are both threadedly connected to the working screw, and two working sliding ports are provided on the measuring platform, and the two working sliding blocks are respectively slidably connected to the two working sliding ports, and the ends of the two working sliding blocks away from the working sliding rod are fixedly connected to a fixing component.

[0008] Preferably, the fixing assembly includes a working clamp block fixedly connected to the working slider, the working clamp block is provided with a fixing clamp groove, the working clamp block is rotatably connected with a threaded sleeve, the threaded sleeve passes through the working clamp block, the threaded sleeve is internally threadedly connected with an auxiliary screw, the auxiliary screw is fixedly connected to the fixing clamp block at one end away from the threaded sleeve, the fixing clamp block is provided with an auxiliary clamp groove, and the working clamp block is also provided with a limiting assembly.

[0009] Preferably, the limiting assembly includes a limiting plate fixedly connected to the side wall of the fixed clamp groove, the auxiliary screw slides through the limiting plate, a limiting block is fixedly connected to the limiting plate, the auxiliary screw is provided with a limiting groove, and the limiting block cooperates with the limiting groove.

[0010] Preferably, the working screw is provided with a rotating handle, the rotating handle is arranged in a disc shape, and the rotating handle is arranged in coordination with the working screw.

[0011] Preferably, an elastic sponge is provided on the side wall of the fixing clamp groove, and the elastic sponge is arranged to fit the side wall of the fixing clamp groove away from the threaded sleeve.

[0012] Preferably, the fixing clamp block is made of rubber material, and the fixing clamp block is arranged in cooperation with the fixing clamp groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model: 1. Through the cooperation of the measuring platform, the fixed column, the limiting roller, the working chamber, the working screw, the working slide rod, the working slide block, the working slide mouth, the working clamp block and the fixed clamp groove, the staff only needs to clamp the bending part of the steel bar between a plurality of limiting rollers, and then place the two ends of the steel bar into the fixed clamp groove, which can effectively avoid the steel bar from sliding during the measurement process, thereby improving the measurement effect.

[0015] 2. Through the cooperation of threaded sleeve, auxiliary screw, fixed clamp, limit plate, limit block and limit slide, the staff can fix the steel bar placed in the fixed clamp groove with the fixed clamp to further prevent it from sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional schematic diagram of the front structure of a steel bar bending inner diameter measuring tool proposed by the utility model;

[0017] Figure 2 This is a front structural cross-sectional view of a steel bar bending arc inner diameter measuring tool proposed by the utility model;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0019] In the figure: 1 measuring table, 2 fixed column, 3 limiting roller, 4 working chamber, 5 working screw, 6 working slide, 7 working slide, 8 working slide, 9 working clamp, 10 fixed clamp groove, 11 threaded sleeve, 12 auxiliary screw, 13 fixed clamp, 14 limiting plate, 15 limiting block, 16 limiting slide. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-Figure 3 , a steel bar bending arc inner diameter measuring tool, including a measuring platform 1 with multiple bases, three fixed columns 2 are arranged on the measuring platform 1, and the three fixed columns 2 are all provided with limiting rollers 3, wherein two limiting rollers 3 are symmetrically arranged, wherein two limiting rollers 3 are arranged above another limiting roller 3, so that the bending part of the steel bar can be stuck and fixed to prevent sliding during the measurement process, a working chamber 4 is arranged in the measuring platform 1, and a working screw 5 is rotatably connected in the working chamber 4, and the threads on both sides of the working screw 5 are in opposite directions, so that two working slide blocks 7 can slide toward each other, and the working screw 5 is rotated and penetrates the measuring platform 1, and a rotating handle is arranged on the working screw 5, and the rotating handle is arranged in a disc shape, and the rotating handle is arranged in conjunction with the working screw 5, which is more convenient for the staff to rotate the working screw 5;

[0022] A working slide bar 6 is also fixedly connected in the working chamber 4, and two working slide blocks 7 are slidably connected to the working slide bar 6. The two working slide blocks 7 are threadedly connected to the working screw 5. The working slide bar 6 limits the two working slide blocks 7 so that the two working slide blocks 7 slide along the working screw 5. Two working slide ports 8 are provided on the measuring table 1. The two working slide blocks 7 are slidably connected to the two working slide ports 8 respectively, thereby ensuring that the two working slide blocks 7 can slide normally. One end of the two working slide blocks 7 away from the working slide bar 6 is fixedly connected to a fixing component, and the fixing component includes a working clamping block 9 fixedly connected to the working slide block 7, and a fixing clamping groove 10 is provided on the working clamping block 9. An elastic sponge is provided on the side wall of the fixing clamping groove 10, and the elastic sponge is arranged in contact with a side wall of the fixing clamping groove 10 away from the threaded sleeve 11, so as to reduce the friction of the steel bar and avoid sliding.

[0023] A threaded sleeve 11 is rotatably connected to the working clamp block 9, and the threaded sleeve 11 penetrates the working clamp block 9. An auxiliary screw 12 is connected to the inner thread of the threaded sleeve 11. The end of the auxiliary screw 12 away from the threaded sleeve 11 is fixedly connected to a fixed clamp block 13. The fixed clamp block 13 is made of rubber material, and the fixed clamp block 13 is arranged in conjunction with the fixed clamp groove 10 to avoid damaging the outer surface of the steel bar. The fixed clamp block 13 is provided with an auxiliary clamp groove. The working clamp block 9 is also provided with a limiting assembly, which includes a limiting plate 14 fixedly connected to the side wall of the fixed clamp groove 10, and the auxiliary screw 12 slides through the limiting plate 14. A limiting block 15 is fixedly connected to the limiting plate 14, and a limiting slide groove 16 is provided on the auxiliary screw 12. The limiting block 15 is arranged in conjunction with the limiting slide groove 16, so that the auxiliary screw 12 will only slide along the direction of the threaded sleeve 11.

[0024] During the use of the utility model, the staff first places the bending part of the steel bar into the three limiting rollers 3, so that the three limiting rollers 3 clamp the bending part of the steel bar, and then rotates the working screw 5. Due to the characteristics of the threaded connection, the two working slide blocks 7 start to move, and the working slide bar 6 limits the two working slide blocks 7, so that the two working slide blocks 7 start to slide toward each other along the direction of the working screw 5, thereby driving the two working clamps 9 to move. When the two ends of the steel bar can be placed in the fixed clamping groove 10, the staff can stop rotating the working screw 5;

[0025] Then the staff will smoothly insert the two ends of the steel bar into the fixed clamping groove 10, and then rotate the threaded sleeve 11. Due to the characteristics of the threaded connection, the auxiliary screw 12 will start to move. Under the limiting action of the limiting plate 14, the auxiliary screw 12 will slide along the direction of the threaded sleeve 11, and then drive the fixed clamping block 13 to move, so as to fix the two ends of the steel bar. Then the staff will use the tape measure to align the starting point of the tape measure with the bent side of the steel bar, ensure that the tape measure is completely in contact with the surface of the steel bar, and slide the tape measure smoothly along the curved line of the steel bar until the end of the tape measure is completely aligned with the other side of the steel bar, and read the scale reading on the tape measure corresponding to the length of the curved part of the steel bar. This reading will be the inner diameter of the curved part of the steel bar.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tool for measuring the inner diameter of a steel bar bend, comprising a measuring platform (1) with a plurality of bases, characterized in that: The measuring platform (1) is provided with three fixed columns (2), and each of the three fixed columns (2) is provided with a limiting roller (3), wherein two of the limiting rollers (3) are symmetrically arranged, and wherein the two limiting rollers (3) are arranged above another limiting roller (3). A working cavity (4) is provided in the measuring platform (1), and a working screw (5) is rotatably connected in the working cavity (4), and the threads on both sides of the working screw (5) are in opposite directions. The working screw (5) is rotatably arranged to penetrate the measuring platform (1), and a working slide bar (6) is also fixedly connected in the working cavity (4), and two working sliders (7) are slidably connected to the working slide bar (6), and the two working sliders (7) are both threadedly connected to the working screw (5). The measuring platform (1) is provided with two working slides (8), and the two working sliders (7) are respectively slidably connected to the two working slides (8), and the ends of the two working sliders (7) away from the working slide bar (6) are fixedly connected to a fixing component.

2. A steel bar bending arc inner diameter measuring tool according to claim 1, characterized in that: The fixing assembly comprises a working clamp (9) fixedly connected to the working slider (7), the working clamp (9) being provided with a fixing clamp groove (10), the working clamp (9) being rotatably connected with a threaded sleeve (11), the threaded sleeve (11) being arranged to penetrate the working clamp (9), the threaded sleeve (11) being internally threadedly connected with an auxiliary screw (12), the auxiliary screw (12) being fixedly connected with a fixing clamp (13) at one end away from the threaded sleeve (11), the fixing clamp (13) being provided with an auxiliary clamp groove, and the working clamp (9) being further provided with a limit assembly.

3. A steel bar bending arc inner diameter measuring tool according to claim 2, characterized in that: The limiting assembly comprises a limiting plate (14) fixedly connected to the side wall of the fixed clamping groove (10), the auxiliary screw rod (12) is slidably passed through the limiting plate (14), a limiting clamping block (15) is fixedly connected to the limiting plate (14), a limiting sliding groove (16) is provided on the auxiliary screw rod (12), and the limiting clamping block (15) is arranged in cooperation with the limiting sliding groove (16).

4. A steel bar bending arc inner diameter measuring tool according to claim 1, characterized in that: The working screw (5) is provided with a rotating handle, the rotating handle is arranged in a disc shape, and the rotating handle is arranged in coordination with the working screw (5).

5. A steel bar bending arc inner diameter measuring tool according to claim 2, characterized in that: An elastic sponge is provided on the side wall of the fixing clamping groove (10), and the elastic sponge is arranged to fit a side wall of the fixing clamping groove (10) away from the threaded sleeve (11).

6. A steel bar bending arc inner diameter measuring tool according to claim 2, characterized in that: The fixed clamp block (13) is made of rubber material, and the fixed clamp block (13) is arranged in cooperation with the fixed clamp groove (10).

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