X-ray detection detector special for building

Abstract

The utility model relates to a special X-ray detection detector for a building, which comprises a cylindrical closed shell, a detector body and a detector body. The detector element is arranged in the cylindrical closed shell and is used for completing X-ray sensing, pixel selection, signal quantization and image processing in the axial direction of the cylindrical closed shell and outputting digital image data; the angle indication module is arranged at the end part of the cylindrical closed shell and is used for indicating the current angle of the detector so as to be conveniently aligned with a ray incident angle; and the waterproof and dustproof connector is arranged at the end part of the cylindrical closed shell, is electrically connected with the detector element, and is used for power supply and data interaction. The device can be matched with an existing building prefabricated hole channel, wired stable transmission and rapid angle positioning can be achieved, and high-efficiency and low-damage ray detection of the interior of a bearing component in the true sense is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to building structure nondestructive testing technical field especially is a kind of building special X-ray detection probe. BACKGROUND

[0002] With the expansion of urban renewal and existing building reconstruction scale, the bearing capacity review of key components such as concrete beams and columns becomes the core link of structural safety identification. However, a large number of early construction projects have problems such as missing drawings and incomplete data, and internal steel reinforcement information cannot be obtained through data checking, so efficient and low-damage detection methods are needed to replace traditional chiseling methods.

[0003] X-ray digital imaging technology has been introduced into the field of construction because it can directly display the position, diameter and defects of steel bars. A building structure component internal steel bar and defect detection method and system with a patent publication number CN117388290A arranges X-ray machines and imaging plates on both sides of the component, and realizes steel bar diameter measurement combined with computer vision algorithms;

[0004] A ray method for detecting internal steel bars of floor slabs, with a patent publication number CN118936377B, can complete non-destructive testing of floor steel bar diameter without damaging suspended ceilings and decorative layers;

[0005] A large-section concrete component X-ray detection hole manufacturing method with a patent publication number CN217484222U uses a core hole (also used as a concrete strength core sample hole) with a diameter of 75-105 mm as an X-ray receiving channel for beams and columns with a thickness of >350 mm, thereby breaking through the penetration limit of about 350 mm of portable X-ray machines.

[0006] Although the above methods are theoretically feasible, existing X-ray detectors still have the following common defects:

[0007] Structural size mismatch: medical flat panel detectors usually have a rectangular design with a diagonal size ≥280 mm and a thickness >15 mm, which cannot be inserted into a core hole with a diameter of 75-105 mm. If internal detection of load-bearing columns or beams is required, a space much larger than the detector's shape needs to be drilled on the concrete, which not only damages the original structural stress section but also violates the "minimum damage" principle, making it difficult to implement in engineering.

[0008] Insufficient protection level: current construction sites generally use medical flat panel detectors to complete X-ray detection. Such equipment is designed for clean environments and does not have IP67 level waterproof and dustproof protection. In the conditions of high dust and cement slurry splashing on the construction site, the internal circuit of the detector is prone to moisture and dust accumulation, leading to pixel failure, image glitches and significantly shortened lifespan, resulting in high maintenance costs.

[0009] Poor communication reliability: In order to facilitate on-site movement, the existing detector generally adopts wireless transmission. The thickness of the concrete beam is often more than 300 mm, and the steel mesh is dense, so the wireless signal is seriously shielded, and packet loss, delay, image return failure, and the need for repeated exposure reduce detection efficiency and increase radiation dose.

[0010] Difficult positioning: Radiographic imaging requires that the X-ray central beam be perpendicular to the imaging surface of the detector, otherwise geometric distortion will occur, affecting the determination of defect size. The existing device has no angle reference, and is placed only by the experience of the operator, so it is difficult to ensure 90° incidence in the dim light and narrow space on site, resulting in image distortion and large detection error. Novelty content

[0011] Therefore, the technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a special X-ray detection detector for buildings, which can be matched with existing building prefabricated holes, can be wired and stably transmitted, and can be quickly and angularly positioned, so that efficient and low-damage radiographic detection of the internal load-bearing member can be realized.

[0012] To solve the above technical problems, the present application provides a special X-ray detection detector for buildings, comprising:

[0013] A cylindrical closed shell for extending into a building prefabricated hole;

[0014] A detector element arranged in the cylindrical closed shell for receiving X-rays and converting them into electrical signals for imaging;

[0015] An angle indicating module arranged at the end of the cylindrical closed shell for indicating the current angle of the detector, facilitating alignment of the ray incidence angle;

[0016] A waterproof and dustproof connector arranged at the end of the cylindrical closed shell and electrically connected to the detector element for power supply and data interaction.

[0017] In one embodiment of the present application, the cylindrical closed shell comprises a main cylinder and end covers arranged at both ends of the main cylinder.

[0018] In one embodiment of the present application, a sealing element is arranged between the end cover and the main cylinder.

[0019] In one embodiment of the present application, the waterproof and dustproof connector is recessed into the outer surface of the end cover.

[0020] In one embodiment of the present application, an axial threaded blind hole is provided on the outer end of the end cover for detachable connection with an auxiliary pull rod, so that the detector can be sent into or taken out of the building prefabricated hole.

[0021] In an embodiment of the utility model, the outer end of the end cover is provided with a tape measure, which is used for assisting in positioning the distance between the detector and the building prefabricated hole.

[0022] In an embodiment of the utility model, the tape measure is installed on the outer side of the end cover through a fixing seat.

[0023] In an embodiment of the utility model, a pull ring is arranged on the fixing seat, which is used for assisting in putting and taking out the detector from the building prefabricated hole.

[0024] In an embodiment of the utility model, the angle indicating module is a level instrument embedded on the outer side of both ends of the cylindrical closed shell.

[0025] In an embodiment of the utility model, the outer side of the cylindrical closed shell is covered with a waterproof cement bonding coating.

[0026] The above technical scheme of the utility model has the following beneficial effects compared with the prior art:

[0027] The building special X-ray detection detector can be directly inserted into the building core hole, realize full digital imaging in the hole, and utilize the angle indicating module and the waterproof and dustproof connector to ensure one-time positioning success and data non-packet loss in a bad environment, and solve the pain points of traditional equipment such as "not going in, not transmitting out and not measuring accurately". BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to make the content of the utility model more easily understood, the utility model will be further described in detail below according to the specific embodiments of the utility model and in combination with the drawings, wherein

[0029] Figure 1 It is a structure schematic view of the building special X-ray detection detector in the preferred embodiment of the utility model;

[0030] Figure 2 It is Figure 1 It is a structure schematic view of the tape measure, the fixing seat and the pull ring of the building special X-ray detection detector;

[0031] The description of the drawing signs of the specification is as follows: 1, cylindrical closed shell; 11, main cylinder; 12, end cover; 2, angle indicating module; 3, waterproof and dustproof connector; 4, axial threaded blind hole; 5, tape measure; 6, fixing seat; 7, pull ring. DETAILED DESCRIPTION

[0032] The utility model will be further described below in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiments are not as the limitation of the utility model.

[0033] ReferFigure 1 and 2 The utility model provides a kind of X-ray detection probe special for building, comprising:

[0034] Cylindrical closed shell 1 is suitable for inserting building prefabricated hole channel;

[0035] Probe element is arranged in the cylindrical closed shell 1, for receiving X-ray and converting it into electrical signal for imaging;

[0036] Angle indicating module 2 is located at the end of cylindrical closed shell 1, for indicating the current angle of probe, facilitating alignment of ray incidence angle;

[0037] Waterproof and dustproof connector 3 is located at the end of cylindrical closed shell 1, and is electrically connected with the probe element, for power supply and data interaction.

[0038] Cylindrical closed shell 1 adopts cylindrical structure, its diameter is 10cm, length is 40cm, can utilize common concrete coring hole of building, carries out nondestructive ray detection, its structure can be easily put into sampling hole, does not damage the original mechanical properties of load-bearing beam.Main cylinder 11 is cylindrical structure, which can maximize imaging area, and the imaging area is increased by about 15% compared with ordinary cubic structure.In this narrow sampling space, increasing the imaging area has great significance for nondestructive testing.

[0039] Further, the cylindrical closed shell 1 includes a main cylinder 11 and end caps 12 arranged at both ends of the main cylinder 11.The split structure design of the main cylinder 11 and the end caps 12 facilitates production line assembly and allows quick opening of the end caps 12 for maintenance on site.The cylindrical main cylinder 11 matches the existing core hole tolerance band, without the need for secondary reaming, and maximizes the mechanical section of the component.

[0040] A sealing element is provided between the end cap 12 and the main cylinder 11.The sealing element between the end cap 12 and the main cylinder 11 allows the entire shell to achieve IP67, preventing concrete dust, mud, and washing water from entering and reducing the failure rate of the probe by 80%, meeting the requirements of high-dust and high-humidity operations on construction sites.

[0041] Preferably, the waterproof and dustproof connector 3 is sunk into the outer surface of the end cap 12.This can avoid collision with the hole wall and steel bars during transportation, insertion, or removal, reducing the risk of plug damage.

[0042] In addition, the end cap 12 is provided with an axial threaded blind hole 4 at the outer end for detachable connection with an auxiliary pull rod, so that the probe can be sent into or taken out of the building prefabricated hole channel.The axial threaded blind hole 4 allows quick connection of a standard pull rod, enabling single-handed pushing or recovery within a depth range of 3m, eliminating the need for large traction equipment.The blind hole does not penetrate, ensuring the strength and sealing integrity of the end cap 12.

[0043] The end cap 12 is provided with a tape measure 5 outside the end cap 12, which is used to assist in positioning the distance between the detector and the building prefabricated hole. The tape measure 5 is integrated outside the end cap 12, and the insertion depth can be directly read while the detector is pushed into the hole, the positioning accuracy of the depth is 1mm, the additional measuring tool is avoided, and the continuous operation efficiency is improved.

[0044] The tape measure 5 is installed outside the end cap 12 through the fixing seat 6. The tape measure 5 is installed through the fixing seat 6 and can be integrally disassembled and replaced, so that maintenance is convenient; the fixing seat 6 lifts the outlet of the tape measure 5, so that the tape measure 5 is not easily blocked by the cement slurry, and the smoothness of the retraction and extension is ensured.

[0045] A pull ring 7 is arranged on the fixing seat 6 and is used to assist in putting and taking out the detector from the building prefabricated hole.

[0046] In the embodiment, the angle indicating module 2 is a level instrument embedded outside both ends of the cylindrical closed shell 1. The design of the level instrument enables an operator to quickly adjust the detector to ensure that the X-ray is perpendicular to the incident, reduces the probability of image geometric distortion, and reduces the measurement error of the diameter of the steel bar.

[0047] Further, the outer surface of the cylindrical closed shell 1 is covered with a waterproof cement bonding coating, so that the concrete residue can be washed off, and a single person can complete the cleaning, which can avoid that the bonding increases the pulling force or scratches the sealing surface, and prolongs the service life.

[0048] In the embodiment, the detector element completes X-ray sensing, pixel selection, signal quantization and image processing in the axial direction of the cylindrical closed shell 1, and outputs digital image data;

[0049] The detector element comprises, arranged in sequence along the axial direction of the shell and electrically connected to each other:

[0050] The TFT sensor converts the X-ray into visible light through a scintillator, and then generates and temporarily stores a charge signal by a PIN photodiode;

[0051] The scanning circuit is used for row-by-row selection of the pixel switch in the TFT sensor;

[0052] The readout circuit is used for converting the charge released by the selected row of pixels into a voltage, and then converting the voltage into a digital signal through amplification, sampling and ADC;

[0053] The image processing circuit is used for gain correction and splicing of the digital signal, and outputs the final image data.

[0054] The above-mentioned circuit function modules and signal processing procedures are mature existing technologies in the field of X-ray detectors, and the present application does not improve the internal circuit structure and algorithm itself.

[0055] The special X-ray detection probe for building based on the above structure realizes high-precision, high-efficiency and low-damage X-ray detection of the internal steel bar arrangement of a large-section concrete beam and column without destroying the component and without hole expansion.

[0056] In specific work, the drilled core hole is detected by the concrete strength, and secondary hole forming is not needed; the outer diameter of the probe is 10 cm in diameter and 40 cm in length, and is directly inserted into the core hole to the depth to be measured, the axial threaded blind hole 4 is connected with the pull rod to realize pushing and positioning, and the tape 5 synchronously reads the insertion depth.

[0057] The probe element is integrated with a complete signal chain along the axial direction of the cylindrical closed shell 1.

[0058] The X-ray machine is placed outside the concrete component, and the X-ray is received by the probe in the prefabricated hole after penetrating the component.

[0059] The TFT sensor converts the X-ray into a charge signal.

[0060] The scanning circuit selects the TFT pixel row by row, the readout circuit amplifies and quantizes the selected row charge, and a digital gray scale row is formed.

[0061] The image processing circuit completes correction and splicing, and outputs a standard image.

[0062] The level at both ends of the cylindrical closed shell 1 displays the posture in real time, the operator adjusts the angle of the X-ray machine, so that the central beam is approximately perpendicular to the imaging surface, and the geometric distortion is significantly reduced.

[0063] The waterproof and dustproof connector 3 provides power supply, trigger synchronization and data channel, and guarantees stable communication in the deep hole.

[0064] After detection is completed, the probe is pulled out and the outer surface of the cylindrical closed shell 1 is flushed, and then the next hole position can be moved to continue the work.

[0065] Obviously, the above embodiments are only examples for clear illustration, and are not limited to the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not enumerated, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. An X-ray inspection probe for use in the construction industry, characterised in that, The utility model relates to a kind of X-ray detector, comprising: Cylindrical closed shell for extending into building prefabricated hole; Detector element is arranged in the cylindrical closed shell, for receiving X-ray and converting it into electrical signal for imaging; Angle indicating module is arranged at the end of the cylindrical closed shell, for indicating the current angle of detector, facilitating the alignment of ray incidence angle; Waterproof and dustproof connector is arranged at the end of the cylindrical closed shell, and is electrically connected with the detector element, for power supply and data interaction.

2. The X-ray detector for building according to claim 1, wherein: The cylindrical closed shell comprises a main cylinder and end covers arranged at both ends of the main cylinder.

3. The X-ray detector for building according to claim 2, wherein: A sealing element is arranged between the end cover and the main cylinder.

4. The X-ray detector for building according to claim 2, wherein: The outer end surface of the waterproof and dustproof connector is recessed into the outer surface of the end cover.

5. The X-ray detector for building according to claim 2, wherein: An axial threaded blind hole is provided on the outer end of the end cover for detachable connection with an auxiliary pull rod, so that the detector can be sent into or taken out of the building prefabricated hole.

6. The X-ray detector for building according to claim 2, wherein: A tape measure is arranged on the outer end of the end cover for assisting in positioning the distance of the detector from the building prefabricated hole.

7. A building-specific X-ray inspection probe according to claim 6, characterized in that: The tape measure is mounted on the outer side of the end cover through a fixing seat.

8. A building-specific X-ray inspection probe according to claim 7, characterized in that: A pull ring is arranged on the fixing seat for assisting in putting and taking out the detector from the building prefabricated hole.

9. The X-ray detector for building according to claim 1, wherein: The angle indicating module is a level embedded on the outer side of both ends of the cylindrical closed shell.

10. The X-ray detector for building according to claim 1, wherein: The outer side of the cylindrical closed shell is covered with a waterproof cementitious coating.

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