CN-121994934-A - Sensor bracket device and system for steel tube concrete ultrasonic detection

CN121994934ACN 121994934 ACN121994934 ACN 121994934ACN-121994934-A

Abstract

The invention discloses a sensor bracket device and a sensor bracket system for steel tube concrete ultrasonic detection, wherein the sensor bracket device comprises a grip, a pressing plate and adsorption mechanisms, wherein the lower end of the grip is connected with the pressing plate, ultrasonic detection sensors are arranged in the center of the bottom surface of the pressing plate, at least three groups of adsorption mechanisms are designed and are uniformly arranged at intervals along the circumferential direction of the ultrasonic detection sensors, and each group of adsorption mechanisms is provided with a magnet block for being adsorbed on the outer wall of a steel tube. The invention also discloses a steel tube concrete ultrasonic detection system. The invention has the beneficial effects that the magnet block of the adsorption mechanism can generate stable magnetic attraction force with the outer wall of the steel pipe, the magnetic force can directly offset part of gravity load of the detection device, the detection personnel only need to hold the handle to conduct directional guidance, and the device can be primarily attached to the surface of the steel pipe without additionally applying supporting force, so that the basic load bearing load of the hand is greatly reduced, and the problem of high labor intensity of the staff in the prior art is solved.

Inventors

Dong Caohui
ZHOU BIAO
LI YUJIA
WANG JING
LI JIAOJIAO
LIU YUZHOU
WANG GUO
ZENG FEI
RUAN HANG
WANG KUN
PENG LI
Chen kuo

Assignees

湖北省建筑工程质量监督检验测试中心有限公司鄂州市分公司

Dates

Publication Date: 20260508
Application Date: 20260313

Claims (10)

1. The sensor bracket device for ultrasonic detection of the concrete filled steel tube is characterized by comprising a grip, a pressing plate and an adsorption mechanism; The lower end of the grip is connected with the pressing plate, and the ultrasonic detection sensors are arranged in the center of the bottom surface of the pressing plate; each group of adsorption mechanisms is provided with a magnet block used for being adsorbed on the outer wall of the steel pipe.
2. A sensor holder device for ultrasonic testing of concrete filled steel tube as set forth in claim 1, further comprising a plurality of groups of pressing mechanisms uniformly spaced along the outer periphery of said ultrasonic testing sensor, said pressing mechanisms being disposed intersecting said adsorbing mechanism.
3. A sensor support device for ultrasonic testing of concrete filled steel tube as set forth in claim 2, wherein each group of said hold-down mechanism comprises a vertical rod, a horizontal plate, a rolling ball; the two vertical rods are fixed on the lower surface of the pressing plate in parallel; two ends of the transverse plate are respectively and movably sleeved on the two vertical rods; A circular ring is arranged between the two vertical rods below the transverse plate, a ball seat is embedded in an inner ring cavity of the circular ring, and the outer wall of the ball seat is connected with the inner wall of the circular ring through an annular spring; the ball seat is provided with the ball groove, and the rolling ball is arranged in the ball groove; the upper end of the rolling ball is connected with the transverse plate through a short rod; the pressing mechanism further comprises a pressure spring, the upper end of the pressure spring is connected with the lower surface of the pressing plate, and the lower end of the pressure spring is connected with the transverse plate.
4. A sensor holder device for ultrasonic testing of concrete filled steel tube according to any one of claims 1 to 3, wherein the upper end of the ultrasonic testing sensor is mounted to the lower part of the pressing plate by a spring and a slide bar.
5. A sensor holder apparatus for ultrasonic inspection of concrete filled steel tube as set forth in claim 4, wherein said four groups of said suction means are provided, and said magnet blocks of each suction means are connected to four connection ends of a cross respectively with a joint rod penetrating said pressing plate.
6. A sensor support device for ultrasonic detection of concrete filled steel tube according to claim 5, wherein an adjusting component is further arranged on the sensor support device for ultrasonic detection of concrete filled steel tube, the lower end of the adjusting component extends out of the grip and is connected with the cross, and the adjusting component drives the cross to move along the axial direction of the grip.
7. The sensor bracket device for ultrasonic detection of concrete filled steel tube according to claim 6, wherein the adjusting component comprises a rotating plate, a chain set, a round sleeve, an eccentric mechanism and a connecting rod; the rotating plate is connected with an elliptical plate, and the periphery of the elliptical plate is matched with the inner ring of the chain group; the round sleeve is arranged at the upper end of the grip, and a clamping groove matched with the outer ring of the chain group is formed in the round sleeve; The lower end of the chain group is fixedly connected with a flexible rod; The eccentric mechanism is arranged in the grip, the input end of the eccentric mechanism is connected with the lower end of the flexible rod, the output end of the eccentric mechanism is connected with the upper end of the connecting rod, and the lower end of the connecting rod penetrates out of the grip and is connected with the cross.
8. The sensor holder device for ultrasonic testing of concrete filled steel tube according to claim 7, wherein said eccentric mechanism comprises a swivel, a fixed block and an eccentric rod; The rotary ring is connected to the inner lower part of the round sleeve in a circumferential rotation manner, the fixed block is fixedly connected with the rotary ring, the upper end of the eccentric rod is connected with the bottom of the fixed block, the lower end of the eccentric rod stretches into the grip and is connected with the upper end of the connecting rod, and the lower end of the connecting rod penetrates out of the bottom of the grip and is connected with the center of the cross.
9. The sensor support device for ultrasonic detection of concrete filled steel tube according to claim 8, wherein the grip is of a segmented structure and comprises a lower cylindrical section and an upper transition section connected with the circular sleeve, the axis of the circular sleeve is not collinear with the axis of the cylindrical section, the upper end of the connecting rod is arranged in the cylindrical section and moves back and forth along the axial direction of the cylindrical section, and the lower end of the eccentric rod penetrates through the transition section of the grip and is connected with the connecting rod in the cylindrical section.
10. A sensor system for ultrasonic testing of concrete filled steel tubes, comprising a sensor holder device for ultrasonic testing of concrete filled steel tubes according to any one of claims 1 to 9.

Description

Sensor bracket device and system for steel tube concrete ultrasonic detection Technical Field The invention relates to the technical field of steel tube concrete detection, in particular to a sensor bracket device and a sensor bracket system for steel tube concrete ultrasonic detection. Background At present, in the field of concrete filled steel tube detection, the existing ultrasonic detection technology generally depends on handheld detection equipment, and the traditional detection mode has the defects of high labor intensity, low operation efficiency and poor position fixing reliability, so that the improvement of detection quality and efficiency is severely restricted. The specific defects are as follows: First, intensity of labour is high and operating efficiency is low, influences detection accuracy. The staff needs to hold the vibration excitation device and the sensor in the whole process and maintain the stable posture and the accurate positioning of the equipment. The long-time arm suspension operation is easy to cause muscle fatigue and joint ache, especially in a large-area and multi-point detection scene, the physical consumption is high, the detection efficiency is reduced, the operation error is more easy to occur, and meanwhile, the physical limitation (such as arm tremble and distraction) of the human body can directly influence the contact stability of a sensor and the surface of a steel tube, so that the ultrasonic signal transmission is unstable, the fluctuation and error of detection data are caused, and the accuracy and reliability of a detection result are influenced. And secondly, the reliability of position fixing is poor. When a suspected defect area or a position needing to be subjected to key detection is detected, the detector cannot be reliably fixed at a target position by the existing handheld mode for continuous monitoring and data acquisition, and the stability can be maintained only by manual handheld. The method not only aggravates the workload of operators, but also is more important to ensure the constant contact pressure and angle between the detector and the detected surface, so as to influence the ultrasonic wave transmission and receiving quality, and meanwhile, the operators cannot establish reliable detection reference and control standard at the same position, so that the uncertainty influences the repeatability of detection data and reduces the reliability of detection results. Accordingly, there is a need for improvements over the prior art. Disclosure of Invention The invention aims to provide a sensor bracket device for steel tube concrete ultrasonic detection aiming at the defects of the prior art, aims at solving the problem of high labor intensity of workers in the prior art. The invention adopts the technical scheme that the sensor bracket device for ultrasonic detection of concrete filled steel tube comprises a grip, a pressing plate and an adsorption mechanism; The lower end of the grip is connected with the pressing plate, and the ultrasonic detection sensors are arranged in the center of the bottom surface of the pressing plate; each group of adsorption mechanisms is provided with a magnet block used for being adsorbed on the outer wall of the steel pipe. According to the scheme, the sensor bracket device for the ultrasonic detection of the concrete filled steel tube further comprises a plurality of groups of pressing mechanisms which are uniformly arranged at intervals along the periphery of the ultrasonic detection sensor, and the pressing mechanisms and the adsorption mechanisms are arranged in a crossing manner. According to the scheme, each group of pressing mechanisms comprises a vertical rod, a transverse plate and a rolling ball; the two vertical rods are fixed on the lower surface of the pressing plate in parallel; two ends of the transverse plate are respectively and movably sleeved on the two vertical rods; A circular ring is arranged between the two vertical rods below the transverse plate, a ball seat is embedded in an inner ring cavity of the circular ring, and the outer wall of the ball seat is connected with the inner wall of the circular ring through an annular spring; the ball seat is provided with the ball groove, and the rolling ball is arranged in the ball groove; the upper end of the rolling ball is connected with the transverse plate through a short rod; the pressing mechanism further comprises a pressure spring, the upper end of the pressure spring is connected with the lower surface of the pressing plate, and the lower end of the pressure spring is connected with the transverse plate. According to the scheme, the upper end of the ultrasonic detection sensor is arranged at the lower part of the pressing plate through the spring and the sliding rod. According to the scheme, the adsorption mechanisms are four groups, and the magnet blocks of each adsorption mechanism are respectively connected with the connecting rods penetrati