CN-121977923-A - Compressive strength detection device for building concrete member

Abstract

The invention provides a compressive strength detection device for a building concrete member, which relates to the technical field of compressive strength detection and comprises a loading platform and a frame, wherein a lower pressing plate is fixedly arranged in the middle of the top end of the loading platform, an upper pressing plate is arranged in an inner cavity of the frame, a laser centering mechanism for positioning a sample is arranged at the top end of the inner cavity of the frame, a mechanical centering mechanism for positioning the sample is arranged between the lower pressing plate and the upper pressing plate, a first anti-slip pad is fixedly connected to the top end of the lower pressing plate, glass protection covers are arranged in front of and behind the frame, a center cross mark is arranged in the middle of the top end of the first anti-slip pad, the sample is ensured to be always kept at the center position in the extrusion process through the laser centering mechanism and the mechanical centering mechanism, the problem that the sample position is deviated due to uneven top end when the upper pressing is avoided, the core problems of eccentric loading, large positioning error, low operation efficiency and the like in traditional detection are solved, and the test precision is remarkably improved.

Inventors

• HOU WEI

Assignees

• 山东森海建筑安装工程有限公司

Dates

Publication Date

20260505

Application Date

20260210

Claims (8)

1. 1. The compression strength detection device for the building concrete member comprises a loading platform (1) and a frame (2) fixedly connected to the top end of the loading platform (1), and is characterized in that a lower pressing plate (3) is fixedly arranged in the middle of the top end of the loading platform (1), an upper pressing plate (4) is arranged in an inner cavity of the frame (2), a laser centering mechanism (5) for positioning a sample is arranged at the top end of the inner cavity of the frame (2), a mechanical centering mechanism (6) for positioning the sample is arranged between the lower pressing plate (3) and the upper pressing plate (4), a first anti-slip pad (7) is fixedly connected to the top end of the lower pressing plate (3), a glass protection cover (8) is arranged in the front and the rear of the frame (2), and a cross mark (9) is arranged in the middle of the top end of the first anti-slip pad (7); The laser centering mechanism (5) comprises two fixing frames (51) fixedly connected to the top end of the inner cavity of the frame (2), a rotating connecting frame (52) is rotatably connected to the inner cavity of the fixing frames (51), and an infrared laser instrument (53) for emitting positioning laser is arranged in the middle of the rotating connecting frame (52); the mechanical centering mechanism (6) comprises side clamping plates (61) positioned on two sides of the top end of the lower pressing plate (3), and a second anti-slip pad (62) is fixedly connected to one side of the inner wall of the side clamping plates (61).
2. 2. The device for detecting the compressive strength of a building concrete member according to claim 1, wherein an adjusting motor (54) is mounted at one end of the fixing frame (51), and an output end of the adjusting motor (54) penetrates through the fixing frame (51) and is fixedly connected with one end of the rotating connecting frame (52).
3. 3. The device for detecting the compressive strength of the building concrete member according to claim 1, wherein the two ends of the frame (2) are fixedly connected with mounting frames (63), double-shaft air cylinders (64) are fixedly arranged at the bottom ends of the mounting frames (63), and the extending ends of the double-shaft air cylinders (64) are fixedly connected with one ends of side clamping plates (61).
4. 4. The device for detecting the compressive strength of the building concrete member according to claim 1, wherein the two ends of the upper pressing plate (4) are fixedly connected with connecting plates (10), grooves are formed between the other two ends of the upper pressing plate (4) and the two connecting plates (10), the upper parts of the side clamping plates (61) are movably connected with the inner cavities of the grooves, and the infrared laser instrument (53) is positioned above the grooves.
5. 5. The device for detecting the compressive strength of the building concrete member according to claim 1, wherein the hydraulic cylinder (11) is installed at the top end of the frame (2), the extending end of the hydraulic cylinder (11) penetrates through the frame (2) and is fixedly connected with the top end of the upper pressing plate (4), and the spoke type sensor (12) is installed between the upper pressing plate (4) and a piston rod of the hydraulic cylinder (11).
6. 6. The device for detecting the compressive strength of the building concrete member according to claim 4, wherein four guide posts (13) are fixedly connected to the top end of the inner cavity of the frame (2), through holes (14) are formed in two sides of the connecting plate (10), a guide shaft support (15) is fixedly arranged in the inner cavity of the through hole (14), and the guide posts (13) are movably connected with the inner cavity of the guide shaft support (15).
7. 7. The device for detecting the compressive strength of the building concrete member according to claim 1, wherein the top end of the loading platform (1) is provided with two first sliding grooves (16), the front end and the rear end of the frame (2) are provided with two second sliding grooves (17), the periphery of the glass protection cover (8) is fixedly connected with a frame (18), the bottom end of the frame (18) is movably connected with the inner cavity of the first sliding groove (16), and the two ends of the frame (18) are movably connected with the inner cavities of the adjacent second sliding grooves (17) respectively.
8. 8. The device for detecting the compressive strength of a building concrete member according to claim 7, wherein a linear guide rail (19) for realizing the movement of the glass protective cover (8) is arranged at the bottom end of the inner cavity of the first chute (16).

Description

Compressive strength detection device for building concrete member Technical Field The invention relates to the technical field of compressive strength detection, in particular to a compressive strength detection device for a building concrete member. Background The construction concrete member is a common structural form in modern construction, has the characteristics of firmness, durability and high cost effectiveness, and is widely applied to various construction projects, in the construction field, the detection of the compressive strength of the concrete member is a key link for ensuring the safety and durability of an engineering structure, the traditional concrete compressive strength detection method is mainly based on a compression test after sample maintenance, and the basic principle of the method is that a concrete sample with a certain size is placed in a compression test machine, gradually increased load is applied until the sample is damaged, and the maximum load is recorded, so that the compressive strength is calculated. However, the existing compressive strength detection device usually relies on manual visual alignment when placing a building concrete member sample, is easy to cause position deviation due to operation difference, and the aligned positions of samples with different specifications and shapes are different, so that the centering position of the building concrete member cannot be ensured. Disclosure of Invention The invention aims to solve the problems that the traditional detection device usually depends on manual visual alignment, is easy to cause position deviation due to operation difference, and meanwhile, the position of a sample is possibly deviated due to the uneven position of the top end in the extrusion process, if the eccentric loading causes uneven stress of the sample, additional bending moment is generated, and the measured compressive strength value deviates from a true value. In order to solve the technical problems, the invention provides a compressive strength detection device for a building concrete member, which comprises a loading platform and a frame fixedly connected to the top end of the loading platform, wherein a lower pressing plate is fixedly arranged in the middle of the top end of the loading platform, an inner cavity of the frame is provided with an upper pressing plate, the top end of the inner cavity of the frame is provided with a laser centering mechanism for positioning a sample, a mechanical centering mechanism for positioning the sample is arranged between the lower pressing plate and the upper pressing plate, the top end of the lower pressing plate is fixedly connected with a first anti-slip pad, glass protection covers are arranged in front of and behind the frame, and a center cross mark is arranged in the middle of the top end of the first anti-slip pad; The laser centering mechanism comprises two fixing frames fixedly connected to the top end of the inner cavity of the frame, the inner cavity of the fixing frames is rotationally connected with a rotary connecting frame, and an infrared laser instrument for emitting positioning laser is arranged in the middle of the rotary connecting frame; The mechanical centering mechanism comprises side clamping plates positioned on two sides of the top end of the lower pressing plate, and a second anti-slip pad is fixedly connected to one side of the inner wall of the side clamping plates. Preferably, an adjusting motor is installed at one end of the fixing frame, and the output end of the adjusting motor penetrates through the fixing frame and is fixedly connected with one end of the rotary connecting frame. Preferably, both ends of frame are all fixedly connected with mounting bracket, the bottom fixed mounting of mounting bracket has biax cylinder, the extension end of biax cylinder and the one end fixed connection of side splint. Preferably, the two ends of the upper pressing plate are fixedly connected with connecting plates, grooves are formed between the other two ends of the upper pressing plate and the two connecting plates, the upper part of the side clamping plate is movably connected with the inner cavity of the groove, and the infrared laser instrument is positioned above the groove. Preferably, the hydraulic cylinder is installed on the top of frame, the extension end of pneumatic cylinder runs through the frame and with top fixed connection of top board, install spoke formula sensor between top board and the pneumatic cylinder piston rod. Preferably, four guide posts are fixedly connected to the top end of the inner cavity of the frame, through holes are formed in two sides of the connecting plate, guide shaft supports are fixedly mounted in the inner cavity of the through holes, and the guide posts are movably connected with the inner cavities of the guide shaft supports. Preferably, two first sliding grooves are formed in the top end of the loading platform, two second sliding gr