Reinforcing steel bar strength detection equipment

Abstract

The utility model relates to the technical field of reinforcing steel bar detection, in particular to reinforcing steel bar strength detection equipment which comprises a supporting bottom frame, a guide rail is fixedly connected to the edge of one side of the top face of the supporting bottom frame, supporting plates are connected to the two sides of the inner wall of the guide rail in a sliding mode, and rotating columns are rotationally connected to the centers of the tops of the two supporting plates. And one end of each of the two rotating columns is fixedly connected with a steel bar clamp. The steel bar bending device has the advantages that the two sides of a steel bar are clamped through the steel bar clamps rotationally arranged on the two sides, the hydraulic push rod pushes the jacking piece to push and bend the steel bar towards the center of the steel bar, and when the steel bar is bent, the two steel bar clamps can rotate along with the bent steel bar to adapt to changes of the positions and angles of the two sides of the steel bar; meanwhile, the two steel bar clamps are arranged on the supporting plate which is slidably arranged, so that the two steel bar clamps can slide close to each other when the steel bar is bent, the deformation change of the steel bar is not interfered on the whole, and the accuracy of detecting the strength of the steel bar is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar detection, in particular to a steel bar strength detection device. Background Art

[0002] The yield strength is the stress at which the material begins to deform. Before the yield point, the deformation of the material is elastic. When the stress is removed, the material will return to its original shape. When the stress exceeds the yield strength point, a longer deformation will occur and it cannot be restored.

[0003] In Chinese utility model CN219245243U, a steel bar strength detection device is disclosed. The arc grooves in the clamping block and the lower clamping block on the steel bar strength detection device are arranged relatively. The springs arranged in the arc grooves can play a buffering and adjustment role when clamping the steel bar. When the steel bar is clamped, the arc clamping plate and the steel bar are closely fitted. The surface of the arc clamping plate can be provided with irregular protrusions to increase the friction between the steel bar and the contact between the steel bar and prevent the steel bar from sliding easily between the arc clamping plates. The two arc clamping plates can be deformed according to the shape of the cross section of the steel bar with the elasticity of the spring. The application range is wider, and the contact area with the outer surface of the steel bar is larger, and the fixity is stronger. However, the steel bar strength detection device still has the following problems in use:

[0004] The steel bar strength testing equipment has fixed positions of the fixing devices for the steel bars at both ends. When the steel bars are bent during the test, the two ends will be pulled toward the middle. At the same time, the angles of the fixing points on both sides will not rotate, and cannot adapt to the position changes on both sides when the steel bars are bent, affecting the accuracy of the measurement. Utility Model Content

[0005] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0006] Therefore, one purpose of the present invention is to provide a steel bar strength detection device to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0007] In order to achieve the above-mentioned purpose, an embodiment of the utility model on one hand provides a steel bar strength testing device, including a supporting frame, an edge of one side of the top surface of the supporting frame is fixedly connected to a guide rail, support plates are slidably connected to both sides of the inner wall of the guide rail, two rotating columns are rotatably connected to the centers of the tops of the two support plates, one end of the two rotating columns is fixedly connected to a steel bar clamp, a hydraulic push rod is fixedly connected to the center of the top surface of the supporting frame, and a tightening piece is fixedly connected to the telescopic end of the hydraulic push rod, and the position of the tightening piece corresponds to the position of the clamping center of the two steel bar clamps.

[0008] Preferably, any of the above schemes comprises a steel bar clamp comprising a clamp body, a clamp groove is provided in the middle of one side of the clamp body, a threaded column is threadedly connected at the center of the top of the clamp groove, a clamping block is rotatably connected to the bottom of the threaded column, and the clamping block slides in contact with one side of the inner wall of the clamp groove.

[0009] The technical effect achieved by adopting the above scheme is: by rotating the threaded column, the clamping block can be pressed to the bottom of the inner wall of the clamp groove, which is convenient for clamping the steel bars.

[0010] Preferably, any of the above schemes is that the threaded column passes through the outer wall of the clamp body and the inner wall of the clamp groove, the length of the threaded column is greater than the height of the clamp groove, and the top of the threaded column is fixedly connected with a rotating head.

[0011] The technical effect achieved by adopting the above solution is that the threaded column can completely press the clamping block into the inner wall of the clamp groove.

[0012] Preferably, any of the above schemes has a clamping groove at the bottom of the inner wall of the clamp groove and at the center of the bottom of the clamping block, the inner wall section of the clamping groove 8 is V-shaped, and the bottom center line of the clamping groove corresponds to the center of the clamping member.

[0013] The technical effect achieved by adopting the above scheme is that steel bars of different diameters can be compressed through the V-shaped compression groove.

[0014] Preferably, any of the above schemes has an arc groove at the center of the top of the tightening member, and a pressure detection sensor is provided between the bottom surface of the tightening member and the telescopic end of the hydraulic push rod.

[0015] The technical effect achieved by adopting the above scheme is: the circular arc groove facilitates the tightening of the steel bars to prevent deflection during the top support, and the pressure detection sensor facilitates the detection of the compressive strength.

[0016] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0017] The steel bar strength testing equipment clamps the two sides of the steel bar with steel bar clamps rotatably arranged on both sides, and pushes the bending steel bar toward the center of the steel bar by pushing the tensioning part with a hydraulic push rod. When the steel bar is bent, the two steel bar clamps can rotate with the angle of the bent steel bar to adapt to the changes in the position and angle of the two sides of the steel bar. At the same time, the two steel bar clamps are arranged on a sliding support plate, so that the two steel bar clamps can slide close to each other when the steel bar is bent, thereby not interfering with the changes in the deformation of the steel bar as a whole, thereby improving the accuracy of the steel bar strength testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the top structure of the utility model.

[0020] In the figure: 1-support chassis, 2-guide rail, 3-support plate, 4-clamp body, 5-clamp slot, 6-threaded column, 7-clamping block, 8-clamping slot, 9-hydraulic push rod, 10-pressure detection sensor, 11-tensioning member, 12-rotating column. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0022] Embodiment 1: Figure 1 to Figure 2 As shown, a steel bar strength testing device includes a supporting frame 1, an edge of one side of the top surface of the supporting frame 1 is fixedly connected to a guide track 2, both sides of the inner wall of the guide track 2 are slidably connected to support plates 3, the centers of the tops of the two support plates 3 are rotatably connected to rotating columns 12, one ends of the two rotating columns 12 are fixedly connected to steel bar clamps, a hydraulic push rod 9 is fixedly connected to the center of the top surface of the supporting frame 1, and the telescopic end of the hydraulic push rod 9 is fixedly connected to a tightening piece 11, and the position of the tightening piece 11 corresponds to the position of the clamping center of the two steel bar clamps.

[0023] As an optional technical solution of the utility model, the steel bar clamp includes a clamp body 4, a clamp groove 5 is opened in the middle of one side of the clamp body 4, a threaded column 6 is threadedly connected at the center of the top of the clamp groove 5, and a clamping block 7 is rotatably connected to the bottom of the threaded column 6. The clamping block 7 slides in contact with one side of the inner wall of the clamp groove 5. By rotating the threaded column 6, the clamping block 7 can be pressed to the bottom of the inner wall of the clamp groove 5, which is convenient for clamping the steel bar.

[0024] As an optional technical solution of the utility model, the threaded column 6 passes through the outer wall of the clamp body 4 and the inner wall of the clamp groove 5. The length of the threaded column 6 is greater than the height of the clamp groove 5. The top of the threaded column 6 is fixedly connected with a rotating head, so that the threaded column 6 can completely press the clamping block 7 into the inner wall of the clamp groove 5.

[0025] As an optional technical solution of the present utility model, a clamping groove 8 is provided at the bottom surface of the inner wall of the clamp groove 5 and the center of the bottom surface of the clamping block 7. The inner wall section of the clamping groove 8 is V-shaped, and the bottom center line of the clamping groove 8 corresponds to the center of the clamping piece 11. Through the V-shaped clamping groove 8, steel bars of different diameters can be clamped.

[0026] As an optional technical solution of the utility model, an arc groove is opened at the center of the top of the tightening member 11, and a pressure detection sensor 10 is arranged between the bottom surface of the tightening member 11 and the telescopic end of the hydraulic push rod 9. The arc groove facilitates the tightening of the steel bars to prevent deflection during the supporting, and the pressure detection sensor 10 facilitates the detection of the compressive strength.

[0027] A steel bar strength testing device, the working principle is as follows:

[0028] 1) Clamp both sides of the steel bar by rotating the steel bar clamps on both sides;

[0029] 2) Push the tensioning member 11 toward the center of the steel bar to bend the steel bar through the hydraulic push rod 9;

[0030] 3) When the steel bar is bent, the two steel bar clamps can rotate with the angle of the bent steel bar to adapt to the changes in the position and angle of the two sides of the steel bar. At the same time, the two steel bar clamps are arranged on the sliding support plate 3, so that the two steel bar clamps can slide close to each other when the steel bar is bent, thereby not interfering with the change of the steel bar deformation as a whole;

[0031] 4) The pressure value is then detected by the pressure detection sensor 10, and the strength of the steel bar is measured by comparing the bending degree of the steel bar.

[0032] To summarize, the steel bar strength testing equipment clamps the two sides of the steel bar through the steel bar clamps rotatably arranged on both sides, and pushes the clamping part 11 toward the center of the steel bar by the hydraulic push rod 9. When the steel bar is bent, the two steel bar clamps can rotate with the angle of the bent steel bar to adapt to the changes in the position and angle of the two sides of the steel bar. At the same time, the two steel bar clamps are arranged on a sliding support plate 3, so that the two steel bar clamps can slide close to each other when the steel bar is bent, thereby not interfering with the changes in the deformation of the steel bar as a whole, thereby improving the accuracy of the steel bar strength detection.

[0033] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel bar strength testing device, characterized in that: The invention comprises a support frame (1), wherein a guide track (2) is fixedly connected to the edge of one side of the top surface of the support frame (1), support plates (3) are slidably connected to both sides of the inner wall of the guide track (2), a rotating column (12) is rotatably connected to the center of the top of the two support plates (3), one end of the two rotating columns (12) is fixedly connected to a steel bar clamp, a hydraulic push rod (9) is fixedly connected to the center of the top surface of the support frame (1), and a tensioning member (11) is fixedly connected to the telescopic end of the hydraulic push rod (9), and the position of the tensioning member (11) corresponds to the position of the clamping center of the two steel bar clamps.

2. A steel bar strength testing device according to claim 1, characterized in that: The steel bar clamp comprises a clamp body (4), a clamp groove (5) is provided in the middle of one side of the clamp body (4), a threaded column (6) is threadedly connected at the center of the top of the clamp groove (5), a clamping block (7) is rotatably connected at the bottom of the threaded column (6), and the clamping block (7) is slidably fitted with one side of the inner wall of the clamp groove (5).

3. A steel bar strength testing device according to claim 2, characterized in that: The threaded column (6) passes through the outer wall of the clamp body (4) and the inner wall of the clamp groove (5); the length of the threaded column (6) is greater than the height of the clamp groove (5); and the top of the threaded column (6) is fixedly connected to a rotating head.

4. A steel bar strength testing device according to claim 3, characterized in that: A clamping groove (8) is provided at the bottom of the inner wall of the clamp groove (5) and at the center of the bottom of the clamping block (7). The inner wall section of the clamping groove (8) is V-shaped, and the bottom center line of the clamping groove (8) corresponds to the center of the pressing member (11).

5. A steel bar strength testing device according to claim 4, characterized in that: An arc groove is provided at the center of the top of the tightening member (11), and a pressure detection sensor (10) is provided between the bottom surface of the tightening member (11) and the telescopic end of the hydraulic push rod (9).

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