CN-121978125-A - Detection device for detecting cracks of main structure of building

CN121978125ACN 121978125 ACN121978125 ACN 121978125ACN-121978125-A

Abstract

The invention discloses a detection device for detecting cracks of a main structure of a building, and particularly relates to the technical field of detection of cracks of the main structure of the building; and when detecting, the sliding pushing block pushes against with the moving block, so that the moving block extends outwards, a corresponding marking piece contacts with the building main body, the piston seat moves into the top surface of the moving block, marking liquid in the top surface of the moving block permeates into the marking piece along a plurality of small holes, the marking piece rapidly marks the starting point of a crack of the building main body, the other marking piece in the same group of marking units marks the tail end of the crack area, a visual mark is formed in the crack area, the subsequent personnel can conveniently and rapidly position the crack, the starting point and the end point are marked respectively, and the marking range covers the whole defect area.

Inventors

XU JIE
SHEN BINBIN
CHEN SHUANGLONG
LIN ZIRAN
PAN FENGBO
SHEN WEIDONG
ZHENG SHUNLI
WEI CHAOXIANG
Hou pan

Assignees

广西交航工程技术有限公司

Dates

Publication Date: 20260505
Application Date: 20260316

Claims (8)

1. The detection device for detecting the cracks of the building main body structure is characterized by comprising a second track (3) which is arranged in parallel along the building main body, wherein a first track (2) which is arranged perpendicular to the building main body is communicated with the second track (3), a test frame (1) with a U-shaped structure is arranged on the first track (2) in a sliding manner, lifting plates (4) are arranged on the inner wall surfaces of two sides of the test frame (1) in a lifting manner, and the inner wall surfaces of the two lifting plates (4) are vertically provided with the same rotatable detection assembly in a sliding manner; The detection assembly comprises rotatable rotating plates (6), a base plate (8) is mounted at the end parts of the inner wall surfaces of the two rotating plates (6) together, an electric push rod (9) is mounted on the surface of the base plate (8), a detection box (7) capable of sliding in a limiting mode along the rotating plates (6) is connected to the pushing end of the electric push rod (9), and one side, facing the building main body, of the detection box (7) is open; the inside of the detection box (7) is horizontally provided with a sliding block (22) in a sliding manner, the sliding block (22) is connected with a detection seat (23) through a supporting rod, a detection module (10) is arranged in the middle of the detection seat (23), and two groups of marking units are arranged outside the detection module (10); Each group of marking units comprises two moving blocks (25) which are installed in the detection seat (23) in a lifting manner and are arranged in an axisymmetric manner, an inner cavity of the detection seat (23) is slidably provided with a pushing block (26), and the pushing block (26) is in abutting connection with the corresponding moving block (25); The inside of the top surface of each motion block (25) is movably connected with a piston seat (32) through an elastic piece, the upper end of the piston seat (32) is provided with a marking piece (33), and the surface of the piston seat (32) is provided with a plurality of small holes for marking liquid to pass through; The outside of the moving block (25) is sleeved with a second spring (34), and the end part of the second spring (34) is fixed with one inner wall of the detection seat (23); The inside of the detection seat (23) is provided with an adjusting unit for controlling the pushing blocks (26) in each group of marking units to move simultaneously or not simultaneously.
2. The detection device for detecting cracks of a building main structure according to claim 1, wherein the inner cavity of the detection seat (23) is provided with a liquid storage tank (24), and the discharge end of the liquid storage tank (24) is provided with an electromagnetic valve and is communicated with the inside of the moving block (25) through a hose.
3. The detection device for detecting cracks of a building main structure according to claim 1, wherein the adjusting unit comprises a bevel gear I (27) driven by a servo motor, four concentric sliding rails (28) are arranged in the detection seat (23), and extension lines of two adjacent sliding rails (28) are vertically arranged; Each sliding rail (28) is provided with a vertical plate (31) in a sliding manner, a bevel gear II (30) meshed with the bevel gear I (27) is rotatably arranged on the vertical plate (31), and a threaded push rod (29) connected with the corresponding pushing block (26) is sleeved on internal threads of each bevel gear II (30).
4. The detection device for detecting cracks of a building main structure according to claim 1, wherein a sliding seat (11) is slidably arranged in a track on the inner wall surface of the lifting plate (4), and the sliding seat (11) and the rotating plate (6) are rotatably arranged; two jacking cylinders (12) which move simultaneously are arranged in a cavity at the bottom of the test frame (1), and each jacking cylinder (12) is fixed with the bottom surface of the corresponding side lifting plate (4).
5. The detection device for detecting cracks of a building main structure according to claim 1, wherein a rolling switching unit is installed in a cavity at the bottom of the test frame (1), the rolling switching unit comprises a first eccentric wheel (13) and a second eccentric wheel (14) which are fixedly sleeved with a driving shaft rod, the first eccentric wheel (13) is overlapped with the second eccentric wheel (14) after rotating for half a circle, a first roller (18) rolling along the first rail (2) is arranged at the bottom of the first eccentric wheel (13), and a second roller (19) rolling along the second rail (3) is arranged at the bottom end of the second eccentric wheel (14).
6. The detection device for detecting cracks of a building main structure according to claim 5, wherein a fixed plate is arranged below the driving shaft lever, and a buffer reset unit for a first roller (18) and a second roller (19) is arranged on the fixed plate; The buffering reset unit comprises a buffering seat (15), wherein the mounting seats of the first roller (18) and the second roller (19) are respectively provided with a compression ring (16) which slides along the buffering seat (15) in a limiting mode, the outer portion of the compression ring (16) is sleeved with a first spring (20), and one end of the first spring (20) is fixed with the fixing plate; the fixed bottom surface is provided with a limiting seat (17) which is in sliding fit with the installation seats of the first roller (18) and the second roller (19).
7. The detection device for detecting cracks of a building main structure according to claim 1, wherein the first track (2) and the second track (3) are both arranged on a bonding plate, and a middle transfer rail (21) is rotatably arranged at the joint of the first track and the second track; The transit rail (21) is consistent with the width of the rail on the first rail (2) and the second rail (3).
8. The detection device for detecting cracks of a building main body structure according to claim 1, wherein two ends of one side of the test frame (1) are respectively connected with two flexible suckers (5) through telescopic units, and the flexible suckers (5) and the building main body are fixedly adsorbed through a vacuum air pump.

Description

Detection device for detecting cracks of main structure of building Technical Field The invention relates to the technical field of detection of cracks of a building main body, in particular to a detection device for detecting cracks of a building main body structure. Background With the development of urban construction, the scale and complexity of buildings are continuously increased, and the safety of a main structure of a building becomes one of core problems in engineering quality control and building safety management. In the use or construction process of a building, cracks are easy to generate in the building structure due to factors such as uneven settlement of a foundation, temperature stress, material aging, external force impact or construction defects, in particular to stress components such as concrete beams, shear walls, floors and the like, and the generation of the cracks not only affects the bearing capacity and durability of the structure, but also can become a precursor of structural failure. At present, the method is mainly carried out by manually observing the crack morphology (width, length and trend), is simple but has strong subjectivity, and is difficult to discover hidden cracks or quantify damage degree. Through searching, the utility model patent with the publication number of CN216208812U discloses an ultrasonic building surface crack detection device, which ensures the basic ultrasonic detection effect and can also ensure the flexible adjustment of the position and the height of a detection main body. The existing building structure crack detection device is mainly suitable for specific components (such as shear walls or beams), is difficult to be compatible with positions, heights and detection angles of different components (shear walls, columns, beams and floors), is poor in equipment adaptability and universality, cannot realize full-structure detection on the same platform, generally needs to manually mark crack starting points or draw regional outlines after crack detection is finished, has the problems of long time consumption, large errors, repeated labor and the like, is difficult to unify standards in manual judgment particularly in environments with fuzzy crack boundaries or insufficient illumination, affects maintenance flow efficiency and quality control, and is complex to operate and low in detection efficiency due to the fact that manual alignment, realignment or assistance of a laser auxiliary positioning device are needed for each position change, and is limited to be rapidly distributed and used on site. Disclosure of Invention The present invention aims to provide a detection device for detecting cracks of a main body structure of a building, so as to solve the problems mentioned in the background art. The invention mainly solves the technical problems that: the existing crack detection is used for specific components (such as shear walls or beams), and is difficult to be compatible with the positions, heights and detection angles of different components, so that the equipment has poor adaptability and weak universality, and full-structure detection cannot be realized on the same platform; The crack starting point is marked manually or the outline of the area is drawn, so that the problems of long time consumption, large error, repeated labor and the like exist, and particularly in the environment with fuzzy crack boundaries or insufficient illumination, the unified standard is difficult to be judged manually, so that the maintenance flow efficiency and the quality control are affected; Each time the position is changed, manual alignment, realignment or assistance of a laser auxiliary positioning device is needed, the operation is complex, the detection efficiency is low, and the on-site rapid arrangement and use of the device are limited. The invention can be realized by the following technical scheme: the utility model provides a detection device for detecting building main body structure crack, includes along building main body parallel arrangement's track two, the intercommunication is equipped with the track one that sets up perpendicularly with the building main body on the track two, and the track one is gone up to slide and is equipped with the test jig of U-shaped structure, all goes up and down on the both sides internal face of test jig and is equipped with the lifter plate, all vertical slip is equipped with same rotatable detection component on the internal face of lifter plate; The detection assembly comprises rotatable rotating plates, base plates are mounted at the end parts of the inner wall surfaces of the two rotating plates together, an electric push rod is mounted on the surface of each base plate, a detection box capable of sliding in a limiting mode along the rotating plates is connected to the pushing end of each electric push rod, and one side, facing the building main body, of each detection box is open; The inside of the detection