An internal damage infrared thermal imaging detection device for anticorrosive coating
By designing a simplified infrared thermal imaging detection device for anti-corrosion coatings, the problems of complex structure and inconvenient operation of existing devices have been solved, enabling lightweight and flexible detection and improving detection efficiency and adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR THIRD ENG BUREAU GRP CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-23
AI Technical Summary
Existing anti-corrosion coating testing devices are complex in structure, bulky in size, and inconvenient to operate, making it difficult to adapt to the testing needs of complex environments and different coating surface structures, thus affecting testing efficiency.
An infrared thermal imaging detection device for internal damage of anti-corrosion coatings was designed. It uses an infrared thermal imager and a thermal excitation light source mounted on a base plate and is equipped with a detachable shielding guide cover. It is connected by buckles or screws to adapt to the detection needs of different coating surfaces, simplifying the structure and improving the ease of operation.
It enables lightweight and flexible detection, improves detection efficiency and adaptability, facilitates the detection of different coating surfaces, and simplifies the operation process.
Smart Images

Figure CN224399330U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of anti-corrosion coating detection equipment, specifically relating to an infrared thermal imaging detection device for internal damage of anti-corrosion coatings. Background Technology
[0002] In industries such as construction, anti-corrosion coatings for walls, columns, and other structures play a crucial role. These coatings effectively prevent structural materials from corroding and aging, extending their service life and ensuring the safety and reliability of the structure. However, during use, coatings may suffer damage due to environmental factors, physical impacts, and chemical corrosion, resulting in cracks, peeling, and hollow areas. If this damage is not detected and repaired promptly, it can lead to coating failure, subsequently causing structural corrosion and damage, resulting in serious safety hazards and economic losses. Therefore, rapid and accurate detection of internal damage to anti-corrosion coatings is essential.
[0003] Existing methods for coating damage detection commonly employ techniques such as visual inspection, impact testing, ultrasonic testing, and infrared thermography. Infrared thermography, in particular, heats the coating using a thermal excitation source, creating a temperature difference between the damaged and normal areas within the coating. This temperature difference is then captured by an infrared thermal imager, allowing for the detection of internal coating damage. However, existing detection devices are structurally complex, with some being bulky and inconvenient to carry and operate, making them unsuitable for the complex environments of on-site testing. Furthermore, installation and disassembly are cumbersome, with inflexible connection methods for various components, resulting in a tedious process that fails to meet the testing requirements of different coating surface structures, thus impacting testing efficiency. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an infrared thermal imaging detection device for internal damage to anti-corrosion coatings. The device has a simple structure, is easy to disassemble and operate, is lighter, more flexible and easier to operate, and improves detection efficiency.
[0005] To achieve the above objectives, the present invention is implemented using the following technical solution.
[0006] This utility model provides an infrared thermal imaging detection device for internal damage of anti-corrosion coating, including a base plate, an infrared thermal imager and at least one thermal excitation light source are recessedly mounted on the bottom surface of the base plate, and a shielding guide cover is detachably mounted on the bottom surface of the base plate and sleeved around the infrared thermal imager and the thermal excitation light source.
[0007] Furthermore, the shielding guide cover is connected to the bottom surface of the base plate by a buckle, pin or screw, and the opening end face of the shielding guide cover on the side opposite to the base plate is an arc-shaped opening face or a flat opening face.
[0008] Furthermore, two thermal excitation light sources are recessed on the bottom surface of the base plate, and the two thermal excitation light sources are centrally symmetrically arranged on both sides of the infrared thermal imager.
[0009] Furthermore, the base plate is equipped with a power supply and a control processing module. The power supply is connected to the infrared thermal imager, the thermal excitation light source and the control processing module respectively. The control processing module is connected to the infrared thermal imager and the thermal excitation light source respectively.
[0010] Furthermore, an integrally formed housing is mounted on the base plate, and the housing is provided with a handle and several control buttons electrically connected to the control processing module.
[0011] Furthermore, the housing is provided with a display screen that is electrically connected to the control processing module.
[0012] Furthermore, a storage unit electrically connected to the control processing module is configured on the base plate.
[0013] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: The infrared thermal imaging detection device for internal damage of anti-corrosion coatings provided by this utility model has an infrared thermal imager and at least one thermal excitation light source recessed on the bottom surface of the base plate, and a shielding guide cover detachably installed on the bottom surface of the base plate, which is fitted around the infrared thermal imager and the thermal excitation light source. The opening end face of the shielding guide cover on the side opposite to the base plate is an arc-shaped opening face or a flat opening face, which can conveniently detect coating damage on walls, columns and other surfaces to obtain detection data. It has strong adaptability and is easy to operate. By optimizing the structure of the device, it is made lighter, more flexible and easier to operate, while improving detection efficiency, making it more efficient and reliable. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of an infrared thermal imaging detection device for internal damage to an anti-corrosion coating, provided according to an embodiment of the present invention.
[0015] Figure 2 This is a block diagram of an infrared thermal imaging detection device for internal damage to an anti-corrosion coating, provided according to an embodiment of the present invention.
[0016] Figure 3 This is a schematic diagram of the structure of an infrared thermal imaging detection device for internal damage to an anti-corrosion coating, provided according to an embodiment of the present invention.
[0017] In the picture:
[0018] 1. Base plate; 2. Housing; 3. Infrared thermal imager; 4. Thermal excitation light source; 5. Shielding guide cover; 6. Power supply; 7. Control processing module; 8. Handle; 9. Button; 10. Display screen; 11. Storage unit; 12. Bolt; 13. Sink; 14. Coating. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.
[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] like Figure 1 and Figure 3 As shown, this utility model embodiment provides an infrared thermal imaging detection device for internal damage of anti-corrosion coating 14, including a base plate 1, an infrared thermal imager 3 and at least one thermal excitation light source 4 are recessedly mounted on the bottom surface of the base plate 1, and a shielding guide cover 5 is detachably mounted on the bottom surface of the base plate 1 and sleeved around the infrared thermal imager 3 and the thermal excitation light source 4.
[0023] An integrally molded housing 2 is mounted on the base plate 1. The housing 2 is equipped with a handle for easy use and operation.
[0024] In some embodiments, two thermal excitation light sources 4 are recessed on the bottom surface of the base plate 1, and the two thermal excitation light sources 4 are centrally symmetrically arranged on both sides of the infrared thermal imager 3. Preferably, the two thermal excitation light sources 4 are symmetrically spaced on both sides of the infrared thermal imager 3 along the advancing direction of the detection device or the front and rear central axis of the device.
[0025] A long, narrow groove 13 is formed on the bottom surface of the base plate 1, and the infrared thermal imager 3 and the thermal excitation light source 4 are both disposed in the same groove 13. In addition, in some other embodiments, several grooves 13 may be formed on the bottom surface of the base plate 1, respectively for mounting the corresponding infrared thermal imager 3 and thermal excitation light source 4.
[0026] The shielding guide cover 5 is connected to the bottom surface of the base plate 1 by a buckle, pin or screw, and the opening end face of the shielding guide cover 5 on the side opposite to the base plate 1 is an arc-shaped opening face or a flat opening face.
[0027] Among them, the shielding guide 5 with a flat opening can be used for the inspection of coatings 14 on flat walls or column surfaces; the shielding guide 5 with an arc-shaped opening can be used for the inspection of coatings 14 on cylindrical surfaces. The detachable installation method allows for quick and efficient adaptation to the inspection needs of different coating surfaces 14.
[0028] The thermal excitation light source 4 can be a halogen lamp, which has the advantages of fast heating speed, large irradiation range, high heating power, low cost, easy to obtain, easy to install and cost-effective.
[0029] like Figure 2 As shown, the upper housing 2 of the base plate 1 is equipped with a power supply 6, a control processing module 7, and a storage unit 11. The power supply 6 is connected to the infrared thermal imager 3, the thermal excitation light source 4, the storage unit 11, and the control processing module 7 to provide electrical energy. The control processing module 7 is connected to the infrared thermal imager 3, the thermal excitation light source 4, and the storage unit 11.
[0030] The outer surface of the housing 2 is provided with several control buttons electrically connected to the control processing module 7, and a display screen 10 electrically connected to the control processing module 7, which can display the device's operating status, detection images, and other information in real time. The displayed information can be adaptively adjusted and designed according to specific actual needs; this technical solution does not impose any particular limitations.
[0031] The control processing module 7 can control the operation status of the infrared thermal imager 3 and the thermal excitation light source 4 by acquiring the instruction information of the control button, and perform preliminary image processing on the data acquired by the infrared thermal imager 3 using the pre-built image analysis software, and store the acquired data in the aforementioned storage unit 11 or display it in real time on the display screen 10.
[0032] It should be noted that the technical solution of this application mainly focuses on the research, design and improvement of the detection device structure. As for the analysis and processing of image data after acquisition, conventional processors, algorithm models and other software in the existing technology can be used to achieve data detection, processing and analysis. The technical solution of this application does not make any improvements to the software, algorithm and other parts.
[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An infrared thermal imaging detection device for internal damage to an anti-corrosion coating, comprising a base plate, characterized in that, An infrared thermal imager and at least one thermal excitation light source are recessedly mounted on the bottom surface of the base plate, and a shielding guide cover is detachably mounted on the bottom surface of the base plate around the infrared thermal imager and the thermal excitation light source.
2. The infrared thermal imaging detection device for internal damage to anti-corrosion coatings according to claim 1, characterized in that, The shielding guide cover is connected to the bottom surface of the base plate by a buckle, pin or screw, and the opening end face of the shielding guide cover on the side opposite to the base plate is an arc-shaped opening face or a flat opening face.
3. The infrared thermal imaging detection device for internal damage to anti-corrosion coatings according to claim 1, characterized in that, Two thermal excitation light sources are recessed on the bottom surface of the base plate, and the two thermal excitation light sources are centrally symmetrically arranged on both sides of the infrared thermal imager.
4. The infrared thermal imaging detection device for internal damage to anti-corrosion coatings according to claim 1, characterized in that, The base plate is equipped with a power supply and a control processing module. The power supply is connected to the infrared thermal imager, the thermal excitation light source and the control processing module respectively. The control processing module is connected to the infrared thermal imager and the thermal excitation light source respectively.
5. The infrared thermal imaging detection device for internal damage to anti-corrosion coatings according to claim 1, characterized in that, An integrally formed housing is mounted on the base plate, and the housing is provided with a handle and several control buttons that are electrically connected to the control processing module.
6. The infrared thermal imaging detection device for internal damage to anti-corrosion coatings according to claim 5, characterized in that, The housing is equipped with a display screen that is electrically connected to the control processing module.
7. The infrared thermal imaging detection device for internal damage to anti-corrosion coatings according to claim 1, characterized in that, The base plate is equipped with a storage unit that is electrically connected to the control processing module.