An array eddy current weld seam rapid detector
By using a combined array eddy current detection structure, the adaptability of array eddy current weld inspection equipment to curved surfaces and high-temperature environments has been solved, enabling rapid and flexible non-destructive testing that is suitable for complex workpieces and high-temperature environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PANJIN LIAOHE OILFIELD NONDESTRUCTIVE CHECKING & MEASURING CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-21
Smart Images

Figure CN224535891U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of weld inspection equipment, specifically an array eddy current weld rapid inspection instrument. Background Technology
[0002] Eddy current weld inspection technology is a non-destructive testing method that utilizes the principle of electromagnetic induction. It rapidly scans metal welds using a multi-channel coil array, leveraging the eddy current effect generated in the conductor by an alternating magnetic field to accurately identify minute defects such as cracks, porosity, and lack of fusion. This technology boasts four core values: ensuring structural safety (weld quality directly impacts the reliability of critical equipment like aerospace vehicles and pressure vessels, and early defect screening effectively prevents major accidents); improving inspection efficiency (array probes simultaneously cover large areas, increasing inspection speed several times compared to traditional single probes); enabling digital assessment (supporting software converts signals into three-dimensional images, visually presenting defect location and size); and reducing maintenance costs (regular monitoring optimizes maintenance cycles and avoids excessive disassembly). This technology has become a key quality inspection tool in high-end manufacturing, particularly suitable for scenarios with stringent requirements for accuracy and efficiency. However, in actual testing, adapting to curved weld surfaces and operating in high-temperature environments still presents challenges. Prolonged exposure to extreme temperatures can damage the equipment. While existing technologies may already address these issues, this paper aims to provide an alternative or replacement solution. Utility Model Content
[0003] To achieve the above objectives, this utility model is implemented through the following technical solution: a rapid array eddy current weld seam detector, comprising: a covering shell, a closed connecting shell, and a grip handle, wherein the grip handle is installed on the closed connecting shell, the closed connecting shell is fitted onto the covering shell, and a combined array eddy current detection structure is installed on the covering shell, wherein the combined array eddy current detection structure comprises: an array eddy current detector body, an extension probe, a heat-insulating composite ceramic layer, several base layer mounting grooves, several electric telescopic rods, a locking connector, an extension transmission power supply connector, an extension cable, an external interface, an external connector slot, an internal mounting base layer, and a pair of connecting locking bolts; The array eddy current detector body is inserted into the encasing shell, and the array eddy current detector body has several connecting positioning slots. The built-in mounting base is installed on the encasing shell, and the built-in mounting base has several base mounting grooves. Several electric telescopic rods are respectively installed in several base mounting grooves, and several electric telescopic rods are respectively connected to the array eddy current detector body through several connecting positioning slots. The extension probe is installed on the array eddy current detector body, and the heat-insulating composite ceramic layer is installed on the extension probe. The locking connection... The base is installed on the main body of the array eddy current detector, and the locking connector is movably connected to the built-in mounting base. The extended transmission power supply connector is inserted into the locking connector, and the extension cable is connected to the extended transmission power supply connector. The external interface is installed on the closed connecting housing, and the external interface is connected to the extension cable. The external interface has an external connector slot. A pair of connecting locking bolts are screwed into the closed connecting housing, and the pair of connecting locking bolts are connected to the built-in mounting base. A sliding fitting component is installed on the outer shell. It should be noted that, in the above-mentioned areas such as flat surfaces or high-temperature areas, the array eddy current detector body can be held directly by hand. The extended probe and its heat-insulating composite ceramic layer are then attached to the metal surface for weld inspection. The heat-insulating composite ceramic layer provides thermal insulation without affecting weld inspection. The data connector simply needs to be inserted into the locking connector to quickly transmit data to the data terminal and perform real-time analysis of the uploaded data. When performing horizontal inspection on curved metal surfaces, the array eddy current detector body is simply inserted into the outer casing. The locking connector then engages with the built-in base layer, instantly aligning the detector. Multiple electric telescopic rods within the base layer mounting slots then extend and retract, securing and locking the electric telescopic rods onto the array eddy current detector body. The extended power supply connector is then inserted into the locking connector, and the enclosed connecting shell is combined with the outer casing before installation. A pair of connecting locking bolts, with their knobs on the closed connecting housing and the outer casing, complete the assembly and fixation of the closed connecting housing and the outer casing. During operation, simply lift the handle to easily move the entire detector and quickly perform rapid detection on the lower curved metal surface. Data is transmitted to the external interface via an extension cable. Simply insert the data connector into the external connector slot to connect the array eddy current detector body for data connection and power supply. The anti-slip grip rubber on the handle prevents slippage during gripping. The waterproof layer on the outer casing prevents external moisture from penetrating the outer casing during detection operations, thus preventing soaking and damage to the array eddy current detector body. The metal induction contacts on the array eddy current detector body power the electric telescopic rod. The metal contacts power the electric telescopic rod through corresponding contacts on the built-in mounting base.
[0004] Preferably, the sliding bonding assembly includes: a pair of lateral mounting bases, a plurality of bonding spring pillars, a plurality of roller mounting seats, and a plurality of bonding hubs; A pair of side mounting bases are respectively mounted on the outer casing, a plurality of fitting spring posts are respectively mounted on a pair of side mounting bases, a plurality of roller mounting seats are respectively mounted on a plurality of fitting spring posts, and a plurality of fitting wheel hubs are respectively mounted on a plurality of roller mounting seats via rotating shafts; It should be noted that, as described above, after assembling the array eddy current detector body with the outer shell and the sealed connecting shell, the entire detection device is lifted by holding the handle and placed on the curved metal surface that needs to be inspected again. The four fitting hubs will first contact the curved metal surface, and the corresponding fitting spring columns will be compressed by the corresponding roller mounting seats. This will allow the 015 to better fit the 017 on the curved metal surface, helping the detector to slide and assisting in its detection. A pair of side mounting bases support the outer shell, allowing the entire detection device to slide freely on the curved metal surface. The heat-insulating composite ceramic layer, together with the extension probe, will fully detect the weld seams on the metal surface during the sliding process.
[0005] Preferably, the grip handle is provided with an anti-slip grip pad; Preferably, the outer casing is provided with a waterproof layer; Preferably, the connecting locking bolt is provided with a hexagonal thread; Preferably, the array eddy current detector body is provided with metal induction contacts. Beneficial effects
[0006] This invention provides a rapid array eddy current weld inspection instrument. It offers the following advantages compared to existing technologies: Through a combined array eddy current detection structure, this instrument enables the inspection of welds on both curved and high-temperature metal surfaces. Its innovative combined structure supports rapid assembly and disassembly, allowing for flexible adjustments to meet different inspection needs. It can handle complex curved workpieces and adapt to high-temperature operating environments. This modular design significantly expands the application scenarios of the equipment and greatly improves its adaptability to diverse inspection tasks, enabling operators to more efficiently complete non-destructive testing under various special working conditions. Attached Figure Description
[0007] Figure 1 This is a schematic diagram of the front cross-sectional structure of the array eddy current weld rapid inspection instrument of this utility model.
[0008] Figure 2 for Figure 1 A magnified view of the letter "A" in the diagram.
[0009] In the diagram: 1. Encased shell; 2. Sealed connecting shell; 3. Handle; 4. Main body of array eddy current detector; 5. Extension probe; 6. Thermal insulation composite ceramic layer; 7. Base mounting groove; 8. Electric telescopic rod; 9. Locking connector; 10. Extension transmission power connector; 11. Extension cable; 12. External interface; 13. External connector slot; 14. Side mounting base; 15. Fitting spring column; 16. Roller mounting base; 17. Fitting wheel hub; 18. Internal mounting base; 19. Connecting locking bolt. Detailed Implementation
[0010] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0011] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further. Example
[0012] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-2As shown, a rapid array eddy current weld inspection instrument includes: a covered shell 1, a closed connecting shell 2, and a grip handle 3. The grip handle 3 is mounted on the closed connecting shell 2, and the closed connecting shell 2 is fitted onto the covered shell 1. A combined array eddy current detection structure is installed on the covered shell 1. The combined array eddy current detection structure includes: an array eddy current detector body 4, an extension probe 5, a heat-insulating composite ceramic layer 6, several base layer mounting grooves 7, several electric telescopic rods 8, a locking connector 9, an extension transmission power supply connector 10, an extension cable 11, an external interface 12, an external connector slot 13, and an internal mounting base layer 18. And a pair of connecting locking bolts 19; the array eddy current detector body 4 is inserted into the encasing shell 1, and the array eddy current detector body 4 is provided with a plurality of connecting positioning slots, the built-in mounting base 18 is installed on the encasing shell 1, and the built-in mounting base 18 is provided with a plurality of base mounting grooves 7, a plurality of electric telescopic rods 8 are respectively installed in a plurality of base mounting grooves 7, and the plurality of electric telescopic rods 8 are respectively connected to the array eddy current detector body 4 through a plurality of connecting positioning slots, the extension probe 5 is installed on the array eddy current detector body 4, and the heat insulation composite ceramic layer 6 is installed on the extension probe 5. The locking connector 9 is installed on the array eddy current detector body 4, and the locking connector 9 is movably connected to the built-in mounting base layer 18. The extension transmission power supply connector 10 is inserted into the locking connector 9. The extension cable 11 is connected to the extension transmission power supply connector 10. The external interface 12 is installed on the closed connection housing 2, and the external interface 12 is connected to the extension cable 11. The external interface 12 has an external connector slot 13. A pair of connection locking bolts 19 are screwed into the closed connection housing 2. Locking bolts 19 are respectively connected to the built-in mounting base 18, and a sliding bonding assembly is installed on the outer shell 1; the sliding bonding assembly includes: a pair of side mounting bases 14, a plurality of bonding spring pillars 15, a plurality of roller mounting seats 16, and a plurality of bonding hubs 17; the pair of side mounting bases 14 are respectively installed on the outer shell 1, the plurality of bonding spring pillars 15 are respectively installed on the pair of side mounting bases 14, the plurality of roller mounting seats 16 are respectively installed on the plurality of bonding spring pillars 15, and the plurality of bonding hubs 17 are respectively installed on the plurality of roller mounting seats 16 via rotating shafts.
[0013] According to the appendix Figure 1-2It is concluded that in flat or high-temperature areas, the array eddy current detector body 4 can be held directly by hand. The extended probe 5 and its heat-insulating composite ceramic layer 6 are then attached to the metal surface for weld inspection. The heat-insulating composite ceramic layer 6 provides thermal insulation without affecting weld inspection. The data connector only needs to be inserted into the locking connector 9 to quickly transmit data to the data terminal and perform real-time analysis of the uploaded data. When performing horizontal inspection on a curved metal plane, the array eddy current detector body 4 is simply inserted into the outer shell 1, and the locking connector 9 locks onto the built-in mounting base 18, instantly completing alignment. Multiple detectors can then be driven... The electric telescopic rod 8 inside the base mounting groove 7 extends and retracts, thereby fixing and locking the electric telescopic rod 8 onto the array eddy current detector body 4. Then, the extended transmission power supply connector 10 is inserted into the locking connector 9, and the enclosed connecting housing 2 and the covering shell 1 are combined. A pair of connecting locking bolts 19 are then inserted and screwed onto the enclosed connecting housing 2 and the covering shell 1, completing the mutual combination and fixation of the enclosed connecting housing 2 and the covering shell 1. During operation, simply lifting the handle 3 allows for easy movement of the entire detector and rapid detection of the lower curved metal surface. Data is transmitted via the extension cable 11 to the external interface 12, where the data is connected... The head can be directly inserted into the external connector slot 13 to perform data connection and power supply operations on the array eddy current detector body 4. The anti-slip grip rubber on the handle 3 prevents slippage during gripping. The waterproof layer on the outer shell 1 prevents external moisture from penetrating the outer shell 1 during detection operations, thus preventing soaking and damage to the array eddy current detector body 4. The metal induction contacts on the array eddy current detector body 4 can power the electric telescopic rod 8. The metal contacts power the electric telescopic rod 8 through corresponding contacts on the built-in mounting base 18. Connect the array eddy current detector body 4 to the outer shell 1. After being assembled with the closed connecting shell 2, the entire detection device is lifted by holding the handle 3 and placed on the arc-shaped metal surface that needs to be inspected again. The four fitting hubs 17 will first contact the arc-shaped metal surface, and the corresponding fitting spring columns 15 will be compressed by the corresponding roller mounting seats 16. This will make the 015 better fit on the arc-shaped metal surface, help the detector slide and assist its detection. A pair of side mounting bases 14 support the covering shell 1, so that the entire detection device can slide freely on the arc-shaped metal surface. The heat-insulating composite ceramic layer 6, together with the extension probe 5, will fully detect the weld seams on the metal surface during the sliding process.
[0014] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A rapid inspection instrument for arrayed eddy current welds, comprising: The device comprises an outer shell, a sealed connecting shell, and a grip handle, wherein the grip handle is mounted on the sealed connecting shell, the sealed connecting shell is fitted onto the outer shell, and a combined array eddy current detection structure is mounted on the outer shell. The combined array eddy current detection structure comprises: an array eddy current detector body, an extension probe, a heat-insulating composite ceramic layer, several base layer mounting slots, several electric telescopic rods, a locking connector, an extension power supply connector, an extension cable, an external interface, an external connector slot, an internal mounting base layer, and a pair of connecting locking bolts. The array eddy current detector body is inserted into the encasing shell, and the array eddy current detector body has several connecting positioning slots. The built-in mounting base is installed on the encasing shell, and the built-in mounting base has several base mounting grooves. Several electric telescopic rods are respectively installed in several base mounting grooves, and several electric telescopic rods are respectively connected to the array eddy current detector body through several connecting positioning slots. The extension probe is installed on the array eddy current detector body, and the heat-insulating composite ceramic layer is installed on the extension probe. The locking connection... The base is mounted on the main body of the array eddy current detector, and the locking connector is movably connected to the built-in mounting base. The extended transmission power supply connector is inserted into the locking connector, and the extension cable is connected to the extended transmission power supply connector. The external interface is mounted on the closed connecting housing, and the external interface is connected to the extension cable. The external interface has an external connector slot. A pair of connecting locking bolts are screwed into the closed connecting housing, and the pair of connecting locking bolts are connected to the built-in mounting base. A sliding fitting component is installed on the outer shell.
2. The rapid inspection instrument for arrayed eddy current welds according to claim 1, characterized in that, The sliding bonding assembly includes: a pair of lateral mounting bases, a plurality of bonding spring pillars, a plurality of roller mounting bases, and a plurality of bonding hubs; A pair of side mounting bases are respectively mounted on the outer casing, a plurality of fitting spring posts are respectively mounted on a pair of side mounting bases, a plurality of roller mounting seats are respectively mounted on a plurality of fitting spring posts, and a plurality of fitting wheel hubs are respectively mounted on a plurality of roller mounting seats via rotating shafts.
3. The rapid inspection instrument for arrayed eddy current welds according to claim 2, characterized in that, The grip handle is equipped with a non-slip grip pad.
4. The rapid inspection instrument for arrayed eddy current welds according to claim 3, characterized in that, The outer casing is provided with a waterproof layer.
5. The rapid inspection instrument for arrayed eddy current welds according to claim 4, characterized in that, The connecting locking bolt is provided with a hexagonal thread.
6. The rapid inspection instrument for arrayed eddy current welds according to claim 5, characterized in that, The array eddy current detector body is provided with metal induction contacts.