Steel structure stress-strain testing device

Abstract

The utility model relates to the technical field of steel structure testing, and discloses a steel structure stress-strain testing device which comprises a detection table and a detection frame, a hydraulic rod is arranged at the upper end of the detection frame, a stress detector is arranged in the detection frame, two sets of supporting frames are arranged at the upper end of the detection table, a steel structure body is arranged at the upper ends of the supporting frames, and a controller is arranged at one end of the detection table. An electric telescopic rod is arranged outside the detection frame, a limiting mechanism is arranged in the detection frame, and a cleaning mechanism is arranged at the upper end of the detection table; the limiting mechanism comprises a limiting seat, one end of the limiting seat is fixedly connected with the electric telescopic rod, two sets of detection plates are arranged in the limiting seat and are arc-shaped elastic plates, one end of each detection plate is fixedly connected with the limiting seat, and rubber balls are arranged on the outer sides of the detection plates and movably connected with the detection plates. According to the utility model, through the arrangement of the limiting mechanism, the steel structure main body can be limited, the steel structure main body can be prevented from shaking in the detection process, and the accuracy of the detection result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure testing, in particular to a steel structure stress and strain testing device. Background Art

[0002] Steel structure is a commonly used building material in engineering construction. It has the characteristics of high strength, light weight, good overall rigidity and strong deformation ability. In the production process of steel structure, it is usually necessary to perform stress and strain detection on the steel structure, which requires the use of stress and strain testing equipment.

[0003] After searching, the Chinese patent document with application number CN202321199784.6 discloses "a building steel structure testing machine", which includes a box body, a hydraulic rod is fixedly connected to the top of the box body, the output shaft of the hydraulic rod passes through the top of the box body and is fixedly connected to a pressure sensor, a fixed block is fixedly installed on the outside of the box body near the bottom, and a cleaning clamping structure is arranged inside the box body, the cleaning clamping structure includes a screw, an L-shaped block and a fixture positioning block, one end of the two screws are rotatably connected to the raised positions at both ends of the fixed block, and the two L-shaped blocks are symmetrically fixedly connected to the rear of the box body near the two ends.

[0004] During use, the above device moves the square block by turning the handle to limit the steel structure. For some larger steel structures, the limit is unstable, which can easily cause the steel structure to shake during the detection process, affecting the accuracy of the detection structure. To this end, we propose a new steel structure stress and strain testing device. Utility Model Content

[0005] The main purpose of the utility model is to provide a steel structure stress and strain testing device, which can effectively solve the technical problems in the background technology.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a steel structure stress and strain testing device, including a testing platform and a testing frame, a hydraulic rod is provided at the upper end of the testing frame, a stress detector is provided inside the testing frame, the stress detector is fixedly connected to the hydraulic rod, two groups of support frames are provided at the upper end of the testing platform, a steel structure body is provided at the upper end of the support frame, a controller is provided at one end of the testing platform, an electric telescopic rod is provided on the outside of the testing frame, a limiting mechanism is provided inside the testing frame, one end of the limiting mechanism is fixedly connected to the electric telescopic rod, a cleaning mechanism is provided at the upper end of the testing platform, and the cleaning mechanism is installed between the two groups of support frames; the limiting mechanism includes a limiting seat, one end of the limiting seat is fixedly connected to the electric telescopic rod, two groups of detection plates are provided inside the limiting seat, the detection plates are arc-shaped elastic plates, one end of the detection plates is fixedly connected to the limiting seat, a rubber ball is provided on the outside of the detection plate, and the rubber ball is movably connected to the detection plate.

[0007] Preferably, a buffer pad is provided at one end of the limit seat, the buffer pad is a soft rubber pad, and the buffer pad is fixedly connected to the limit seat.

[0008] Preferably, a limit block is provided at one end of the detection plate, an adjustment rod is provided on the outside of the limit seat, and one end of the adjustment rod is movably connected to the limit block. By setting the limit block and the adjustment rod, the detection plate can be squeezed to increase the elastic force of the detection plate and improve the clamping effect.

[0009] Preferably, the cleaning mechanism includes two sets of limit guide rails, which are arranged in parallel, and one end of the limit guide rail is fixedly connected to the support frame.

[0010] Preferably, a cleaning rod is provided between the two sets of limit guide rails, and both ends of the cleaning rod are slidably connected to the limit guide rails.

[0011] Preferably, a cleaning strip is provided at the lower end of the cleaning rod, and the lower end of the cleaning strip is in contact with the detection platform. By providing the cleaning strip, metal debris dropped from the upper end of the detection platform can be cleaned.

[0012] Preferably, a rubber ball is provided on the outer side of the detection plate, and the rubber ball is movably connected to the detection plate.

[0013] The utility model provides a steel structure stress and strain testing device, which has the following beneficial effects:

[0014] (1) The stress-strain testing device for steel structures can limit the position of the steel structure body by setting a limit mechanism, thereby preventing the steel structure body from shaking during the testing process and increasing the accuracy of the test results.

[0015] (2) The steel structure stress and strain testing device can clean up the metal debris dropped from the upper end of the testing table by setting up a cleaning mechanism, so as to keep the testing table clean and tidy, and facilitate the subsequent use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation mode of the present utility model or the technical solution in the prior art, the drawings required for use in the implementation mode or the description of the prior art will be briefly introduced below.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a side view of the overall structure of the utility model;

[0019] Figure 3 It is a cross-sectional schematic diagram of the limiting mechanism of the utility model;

[0020] Figure 4 It is a schematic diagram of the cleaning mechanism structure of the utility model.

[0021] Legend:

[0022] 1. Testing table; 2. Testing frame; 3. Hydraulic rod; 4. Stress detector; 5. Support frame; 6. Steel structure; 7. Controller; 8. Electric telescopic rod; 9. Limiting mechanism; 10. Cleaning mechanism; 11. Buffer pad; 12. Testing plate; 13. Rubber ball; 14. Limiting block; 15. Adjusting rod; 16. Limiting seat; 17. Cleaning rod; 18. Limiting guide rail; 19. Cleaning strip. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] Embodiment 1: A stress-strain testing device for a steel structure, such as Figure 1 - Figure 4 As shown, it includes a testing platform 1, a testing frame 2 is arranged on the upper end of the testing platform 1, the testing frame 2 is a U-shaped frame, the lower end of the testing frame 2 is fixedly connected to the testing platform 1, a hydraulic rod 3 is arranged in the center of the upper end of the testing frame 2, the hydraulic rod 3 is fixedly connected to the testing frame 2 by bolts, the lower end of the hydraulic rod 3 extends to the inside of the testing frame 2, a stress detector 4 is arranged inside the testing frame 2, the stress detector 4 is linearly connected to the external receiving terminal through a wire, the upper end of the stress detector 4 is fixedly connected to the output end of the hydraulic rod 3, two groups of support frames 5 are arranged on the upper end of the testing platform 1, the two groups of support frames 5 are symmetrically installed on both sides of the upper end of the testing platform 1, the lower end of the support frame 5 is fixedly connected to the testing platform 1, the upper end of the support frame 5 is arranged with a steel structure body 6, and both sides of the lower end of the steel structure body 6 are placed in the support frame 5 A controller 7 is provided at one end of the outer side of the detection platform 1, and the controller 7 is fixedly connected to the detection platform 1 by bolts, and the controller 7 is linearly connected to the hydraulic rod 3 by wires, and electric telescopic rods 8 are provided at both ends of the outer side of the detection frame 2 relative to the end of the steel structure body 6, and the electric telescopic rod 8 is fixedly connected to the detection frame 2 by bolts, and the electric telescopic rod 8 is linearly connected to the controller 7 by wires, and limiting mechanisms 9 are provided at both ends of the detection frame 2 near the end of the steel structure body 6, and the limiting mechanism 9 opens toward the steel structure body 6, and one end of the limiting mechanism 9 is fixedly connected to the electric telescopic rod 8, and a cleaning mechanism 10 is provided at the upper end of the detection platform 1, and the cleaning mechanism 10 is installed between the two groups of support frames 5, and the lower end of the cleaning mechanism 10 is in contact with the upper end surface of the detection platform 1.

[0025] Embodiment 2: A stress and strain testing device for steel structure, based on Embodiment 1 Figure 1 - Figure 4As shown, the limit mechanism 9 includes a limit seat 16, the limit seat 16 is a U-shaped hard frame, the limit seat 16 opens toward the steel structure body 6, one end of the limit seat 16 is fixedly connected to the electric telescopic rod 8, two groups of detection plates 12 are arranged at the opening inside the limit seat 16, the detection plates 12 are arc-shaped metal elastic plates, the two groups of detection plates 12 are symmetrically installed inside the limit seat 16, one end of the detection plate 12 is fixedly connected to the limit seat 16, a rubber ball 13 is arranged on the outer surface of the detection plate 12, the rubber ball 13 is a soft elastic ball, the rubber ball 13 is movably connected to the detection plate 12, and the limit seat A buffer pad 11 is arranged at one end inside 16, and the buffer pad 11 is a soft rubber pad. One end of the buffer pad 11 is fixedly bonded to the limit seat 16. A limit block 14 is arranged at one end of the detection plate 12, and the limit block 14 is a soft rubber block. The limit block 14 is installed between the detection plate 12 and the limit seat 16. An adjusting rod 15 is arranged on the outer side of the limit seat 16 relative to the position of the limit block 14. The adjusting rod 15 is threadedly connected to the limit seat 16, one end of the adjusting rod 15 passes through the limit seat 16 and is threadedly connected to the limit block 14, and one end of the adjusting rod 15 is movably connected to the limit block 14.

[0026] Embodiment 3: A stress and strain testing device for steel structure, based on the embodiment 2 Figure 1 - Figure 4 As shown, the cleaning mechanism 10 includes two groups of limiting guide rails 18, which are arranged in parallel. One end of the limiting guide rail 18 is fixedly connected to the support frame 5, and a cleaning rod 17 is arranged between the two groups of limiting guide rails 18. The cleaning rod 17 is a strip rod, and both ends of the cleaning rod 17 are slidably connected to the limiting guide rails 18. A cleaning strip 19 is arranged at the lower end of the cleaning rod 17. The cleaning strip 19 is a cleaning cotton strip. The upper end of the cleaning strip 19 is fixedly connected to the cleaning rod 17, and the lower end of the cleaning strip 19 contacts the upper end surface of the detection table 1.

[0027] It should be noted that the utility model is a stress and strain testing device for steel structures. When in use, the steel structure body 6 to be tested is first placed on the upper end of the support frame 5, and then the electric telescopic rod 8 is started through the controller 7. The electric telescopic rod 8 is extended and drives the limit seat 16 to move and insert into the end of the steel structure body 6. The buffer pad 11 can be used for protection between the steel structure body 6 and the limit seat 16 to avoid damage to the surface of the steel structure body 6. The detection plate 12 can clamp the steel structure body 6 to increase the stability of the steel structure body 6. After the end of the steel structure body 6 is completely inserted into the limit seat 16, the adjustment rod 15 is rotated, and the adjustment rod 1 5 drives the limit block 14 to move and contact the detection plate 12 during the rotation. The limit block 14 can squeeze the detection plate 12, increase the elastic force of the detection plate 12 and improve the clamping effect. After the steel structure body 6 is fixed, the hydraulic rod 3 is started to drive the stress detector 4 to move downward to detect the steel structure body 6. After the detection, the steel structure body 6 is removed, and then the two ends of the cleaning rod 17 are pulled to move along the limit guide rail 18. The cleaning rod 17 drives the cleaning bar 19 to move during the movement to clean the upper end surface of the detection platform 1, clean the metal debris dropped from the upper end of the detection platform 1, and keep the detection platform 1 clean. By setting the limit mechanism 9, the steel structure body 6 can be limited, which can prevent the steel structure body 6 from shaking during the detection process and increase the accuracy of the detection result. By setting the cleaning mechanism 10, the metal debris dropped from the upper end of the detection platform 1 can be cleaned, which can keep the detection platform 1 clean and facilitate the subsequent use of the device.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A stress and strain testing device for a steel structure, comprising a testing platform (1) and a testing frame (2), wherein a hydraulic rod (3) is provided at the upper end of the testing frame (2), a stress detector (4) is provided inside the testing frame (2), and the stress detector (4) is fixedly connected to the hydraulic rod (3), two groups of support frames (5) are provided at the upper end of the testing platform (1), a steel structure body (6) is provided at the upper end of the support frame (5), and a controller (7) is provided at one end of the testing platform (1), characterized in that: An electric telescopic rod (8) is provided on the outside of the detection frame (2); a limiting mechanism (9) is provided inside the detection frame (2); one end of the limiting mechanism (9) is fixedly connected to the electric telescopic rod (8); a cleaning mechanism (10) is provided on the upper end of the detection platform (1); the cleaning mechanism (10) is installed between the two groups of support frames (5); the limiting mechanism (9) comprises a limiting seat (16); one end of the limiting seat (16) is fixedly connected to the electric telescopic rod (8); two groups of detection plates (12) are provided inside the limiting seat (16); the detection plates (12) are arc-shaped elastic plates; one end of the detection plates (12) is fixedly connected to the limiting seat (16).

2. A steel structure stress and strain testing device according to claim 1, characterized in that: A buffer pad (11) is provided at one end of the limit seat (16); the buffer pad (11) is a soft rubber pad; and the buffer pad (11) is fixedly connected to the limit seat (16).

3. A steel structure stress and strain testing device according to claim 1, characterized in that: A limit block (14) is provided at one end of the detection plate (12), an adjustment rod (15) is provided on the outer side of the limit seat (16), and one end of the adjustment rod (15) is movably connected to the limit block (14).

4. A steel structure stress and strain testing device according to claim 1, characterized in that: The cleaning mechanism (10) comprises two sets of limit guide rails (18), the two sets of limit guide rails (18) are arranged in parallel, and one end of the limit guide rail (18) is fixedly connected to the support frame (5).

5. A steel structure stress and strain testing device according to claim 4, characterized in that: A cleaning rod (17) is provided between the two sets of limit guide rails (18), and both ends of the cleaning rod (17) are slidably connected to the limit guide rails (18).

6. A steel structure stress and strain testing device according to claim 5, characterized in that: A cleaning strip (19) is provided at the lower end of the cleaning rod (17), and the lower end of the cleaning strip (19) is in contact with the detection platform (1).

7. A steel structure stress and strain testing device according to claim 1, characterized in that: A rubber ball (13) is provided on the outside of the detection plate (12), and the rubber ball (13) is movably connected to the detection plate (12).

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