Portable steel structure welding seam intelligent detection equipment
By employing a screw-driven roller contacting a circular steel component and a limiting rod clamping plate structure in a portable steel structure weld inspection device, the problem of track deviation in the inspection of circular steel components is solved, achieving high precision and applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HUAXIA ENG PROJECT MANAGEMENT CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-12
AI Technical Summary
Existing portable weld inspection instruments are prone to deviation in the inspection track when inspecting circular steel components due to the large surface curvature, which affects the inspection accuracy.
A portable intelligent inspection device for steel structure welds was designed. It uses a screw to drive the mounting frame and rollers to abut against the outer wall of the circular steel component. Combined with a limiting rod and a clamping plate, it ensures the stability of the inspection probe and allows for adjustment of the inspection height.
It improves the accuracy and applicability of weld inspection for circular steel components, is suitable for circular steel components of different sizes, and facilitates probe disassembly, assembly, and height adjustment.
Smart Images

Figure CN224231764U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of weld inspection technology, and in particular to a portable intelligent inspection device for steel structure welds. Background Technology
[0002] Weld inspection devices can quickly, conveniently, non-destructively, and accurately detect, locate, evaluate, and diagnose various internal defects (cracks, inclusions, porosity, incomplete penetration, lack of fusion, etc.) in workpieces. They are used in both laboratories and engineering field inspections, and are widely applied in weld inspection in boiler and pressure vessel manufacturing, weld quality assessment in engineering machinery manufacturing, iron and steel metallurgy, steel structure manufacturing, shipbuilding, oil and gas equipment manufacturing, and other fields requiring defect detection and quality control. Currently, weld inspection instruments are the most commonly used method for weld inspection.
[0003] A search revealed a Chinese patent disclosure for a portable weld inspection instrument (authorization announcement number CN218445248U), comprising: a pen-shaped inspection device; a detachable mounting ring mounted on the inspection device; and a mounting mechanism for conveniently connecting the mounting ring to a welding torch. The mounting mechanism includes a flexible hose mounted on the mounting ring and a mounting rod mounted on the end of the hose away from the mounting ring, with a second clamp mounted on the other end of the mounting rod. This patented technology enables the connection of the inspection device to the welding torch via the mounting mechanism and the connection between the inspection device and the mounting mechanism via the mounting ring. During welding, the inspection device is carried by the mounting mechanism to the welded seam, facilitating the inspection of the residual temperature of the weld. This solves the problem that heating the weld seam in existing methods causes uneven stress changes in the weld seam.
[0004] However, the above-mentioned devices still have some shortcomings in actual use. The most obvious one is that the current weld inspection instrument can inspect the welds of planar steel structures, but when it is necessary to inspect circular steel components, due to their large surface curvature, the weld inspection instrument is prone to deviating from the original inspection track, which leads to deviation in the position of the weld detected by the instrument, resulting in insufficient inspection accuracy. Utility Model Content
[0005] In view of the above-mentioned problems existing in the prior art, the main purpose of this utility model is to provide a portable intelligent inspection device for steel structure welds.
[0006] The technical solution of this utility model is as follows: a portable intelligent inspection device for steel structure welds includes a circular steel component. An upper limit plate is provided at the top of the circular steel component, and a lower limit plate is provided at the bottom of the circular steel component. A hinge is provided between the upper limit plate and the lower limit plate, and the upper limit plate and the lower limit plate are connected by the hinge. Two screws a are threadedly connected inside the upper limit plate and the lower limit plate. A mounting frame is rotatably connected to the end of each screw a near the circular steel component. Rollers are rotatably installed inside the mounting frame. Limiting rods a are fixedly connected to the outside of the mounting frame on both sides of the screws a. The limiting rods a are slidably connected to the upper limit plate and the lower limit plate.
[0007] By adopting the above technical solution, the rotation of screw a can drive the mounting frame to move, and under the limiting action of limit rod a, it can push the rollers to move toward the circular steel component, so that each roller abuts against the outer wall of the circular steel component, thereby making the detection probe more stable during the detection process and less prone to slippage.
[0008] In a preferred embodiment, the top of the upper limit plate is provided with a clamping assembly, which includes a fixing frame fixedly connected to the top of the upper limit plate. Both ends of the fixing frame are provided with fixing grooves, and screws b are rotatably connected inside the fixing grooves.
[0009] By adopting the above technical solution, it is convenient for staff to disassemble and assemble the detection probe, and at the same time, staff can adjust the detection height of the detection probe according to different component thicknesses.
[0010] In a preferred embodiment, the clamping assembly further includes two clamping plates disposed inside the fixing frame, with a detection probe clamped between the two clamping plates, and one end of each screw b extending to the detection probe and rotatably connected to the corresponding clamping plate.
[0011] By adopting the above technical solution, the rotation of screw b can drive the clamping plate to move horizontally, thereby enabling the two clamping plates to clamp the detection probe.
[0012] In a preferred embodiment, the fixing frame is provided with a limiting component inside, the limiting component including two limiting rods b fixedly connected to one side of the clamping plate.
[0013] By adopting the above technical solution, an important limiting function can be achieved, thereby improving the stability of use.
[0014] In a preferred embodiment, the limiting rods b are all slidably connected to the inside of the fixing frame, and the two limiting rods b are respectively arranged on both sides of the screw b.
[0015] By adopting the above technical solution, screw b can be used stably.
[0016] In a preferred embodiment, a wire is fixedly connected to the top of the detection probe, and a weld inspection instrument body is provided on the outside of the circular steel component. The weld inspection instrument body and the detection probe are connected by a wire.
[0017] The above technical solution is adopted to achieve the purpose of inspecting the welds of circular steel components.
[0018] In a preferred embodiment, a scale is fixedly connected inside the mounting bracket, and a pointer is glued to the outside of the detection probe.
[0019] By adopting the above technical solution and using a ruler and pointer together, staff can more intuitively understand the detection height of the detection probe.
[0020] In a preferred embodiment, two locking bolts are provided between the upper limit plate and the lower limit plate, and the upper limit plate and the lower limit plate are connected by the locking bolts.
[0021] By adopting the above technical solution and using locking bolts, it is convenient to connect the upper limit plate and the lower limit plate.
[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0023] 1. In this utility model, the rotation of screw a drives the mounting frame to move, and under the limiting action of limiting rod a, it can push the rollers to move toward the circular steel component, so that each roller abuts against the outer wall of the circular steel component. This makes the detection probe more stable during the detection process and less prone to slippage, thereby improving the detection accuracy of the weld of the circular steel component. Furthermore, the above structure can be used for circular steel components of different sizes, thereby improving the applicability of the device.
[0024] 2. In this utility model, the rotation of screw b, under the action of the limiting component, can drive the clamping plate to move horizontally, thereby achieving the purpose of clamping the detection probe with the help of the two clamping plates. In this way, it is convenient for the staff to disassemble and assemble the detection probe, and at the same time, it is convenient for the staff to adjust the detection height of the detection probe according to different component thicknesses. Attached Figure Description
[0025] Figure 1 A perspective view of a portable intelligent steel structure weld inspection device provided by this utility model;
[0026] Figure 2This utility model provides an overall structural schematic diagram of a portable intelligent steel structure weld inspection device;
[0027] Figure 3 This utility model provides a schematic diagram of the clamping component of a portable intelligent steel structure weld detection device;
[0028] Figure 4 This utility model provides a schematic diagram of the limiting component of a portable intelligent steel structure weld detection device.
[0029] Legend: 1. Circular steel component; 2. Upper limit plate; 3. Lower limit plate; 4. Locking bolt; 5. Hinge; 6. Mounting bracket; 7. Roller; 8. Screw a; 9. Limiting rod a; 10. Detection probe; 11. Fixing bracket; 12. Fixing groove; 13. Screw b; 14. Clamping plate; 15. Limiting rod b; 16. Scale; 17. Pointer. Detailed Implementation
[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0031] Reference Figure 1-4 A portable intelligent inspection device for steel structure welds includes a circular steel component 1. An upper limit plate 2 is located at the top of the circular steel component 1, and a lower limit plate 3 is located at the bottom of the circular steel component 1. A hinge 5 connects the upper limit plate 2 and the lower limit plate 3. Two screws a8 are threadedly connected inside both the upper limit plate 2 and the lower limit plate 3. A mounting frame 6 is rotatably connected to the end of each screw a8 near the circular steel component 1. Rollers 7 are rotatably mounted inside each mounting frame 6. Limiting rods a9 are fixedly connected to the outer side of the mounting frame 6 on both sides of the screws a8. The limiting rods a9 are connected to the upper limit plate... The upper limit plate 2 and the lower limit plate 3 are slidably connected. When inspecting the weld on the circular steel component 1, one end of the upper limit plate 2 and the lower limit plate 3 can be connected. By rotating the screw a8, the mounting frame 6 can be moved. Under the limiting action of the limiting rod a9, the roller 7 can be pushed towards the circular steel component 1, so that each roller 7 abuts against the outer wall of the circular steel component 1. This makes the detection probe 10 more stable during the detection process and less prone to slippage, thereby improving the detection accuracy of the weld on the circular steel component 1. Furthermore, the above structure can be used for circular steel components 1 of different sizes, thereby improving the applicability of the device.
[0032] Specifically, the upper limit plate 2 is provided with a clamping assembly at its top. The clamping assembly includes a fixed frame 11 fixedly connected to the top of the upper limit plate 2. Fixed slots 12 are provided at both ends of the fixed frame 11. By rotating the screw b13 and under the action of the limiting assembly, the clamping plate 14 can be moved horizontally. Thus, the two clamping plates 14 can clamp the detection probe 10. In this way, it is convenient for the staff to assemble and disassemble the detection probe 10. At the same time, it is convenient for the staff to adjust the detection height of the detection probe 10 according to different component thicknesses. The screw b13 is rotatably connected inside the fixed slot 12. The clamping assembly also includes two clamping plates 14 set inside the fixed frame 11. The detection probe 10 is clamped between the two clamping plates 14. One end of the screw b13 extends to the detection probe 10 and is rotatably connected to the corresponding clamping plate 14. The fixed frame 11 is provided with a limiting assembly, which includes two limiting rods b15 fixedly connected to one side of the clamping plate 14.
[0033] Specifically, the limiting rods b15 are all slidably connected to the inside of the fixed frame 11. The two limiting rods b15 are respectively set on both sides of the screw b13 to ensure stable use of the screw b13. The top of the detection probe 10 is fixedly connected with a wire. The weld inspection instrument body is set on the outside of the circular steel component 1. The weld inspection instrument body and the detection probe 10 are connected by a wire to achieve the purpose of detecting the weld of the circular steel component 1. The fixed frame 11 is fixedly connected to the inside. The detection probe 10 is attached to the outside of the pointer 17. Two locking bolts 4 are set between the upper limit plate 2 and the lower limit plate 3. Through the cooperation of the scale 16 and the pointer 17, the staff can more intuitively understand the detection height of the detection probe 10. The upper limit plate 2 and the lower limit plate 3 are connected by the locking bolts 4.
[0034] Working principle: First, the operator can place the detection probe 10 between the two clamping plates 14 and rotate the screw b13. Under the action of the limiting component, the clamping plates 14 can move horizontally, thereby clamping the detection probe 10. Then, the pointer 17 is attached to the surface of the detection probe 10 and points to the scale 16. When inspecting the weld on the circular steel component 1, the upper limit plate 2 and the lower limit plate 3 can be placed around the outer circumference of the circular steel component 1, and the upper limit plate 2 and the lower limit plate 3 can be locked together using the locking bolt 4. Connect one end of the screw a8 and then rotate the screw a8 to move the mounting bracket 6. Under the limiting action of the limiting rod a9, the rollers 7 can be pushed towards the circular steel component 1, so that each roller 7 abuts against the outer wall of the circular steel component 1. This makes the detection probe 10 more stable during the detection process and less prone to slippage, thereby improving the accuracy of weld detection on the circular steel component 1. The weld detection instrument in this device is based on the same principle as a portable steel structure weld detection device with Chinese Patent Publication No. CN210109032U, which belongs to the prior art and does not need to be described in detail.
[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A portable intelligent inspection device for steel structure welds, comprising a circular steel component (1), characterized in that: The upper limit plate (2) is provided at the top of the circular steel component (1), and the lower limit plate (3) is provided at the bottom of the circular steel component (1). A hinge (5) is provided between the upper limit plate (2) and the lower limit plate (3). The upper limit plate (2) and the lower limit plate (3) are connected by the hinge (5). The upper limit plate (2) and the lower limit plate (3) are both threadedly connected to two screws a (8). The end of the screws a (8) near the circular steel component (1) is rotatably connected to a mounting bracket (6). The mounting bracket (6) is rotatably installed with rollers (7). Limiting rods a (9) are fixedly connected to the outside of the mounting bracket (6) and on both sides of the screws a (8). The limiting rods a (9) are slidably connected to the upper limit plate (2) and the lower limit plate (3).
2. The portable intelligent inspection device for steel structure welds according to claim 1, characterized in that: The upper limit plate (2) is provided with a clamping assembly at its top end. The clamping assembly includes a fixing frame (11) fixedly connected to the top end of the upper limit plate (2). Fixing grooves (12) are provided at both ends inside the fixing frame (11). Screws (13) are rotatably connected inside the fixing grooves (12).
3. The portable intelligent inspection device for steel structure welds according to claim 2, characterized in that: The clamping assembly also includes two clamping plates (14) disposed inside the fixing frame (11), with a detection probe (10) clamped between the two clamping plates (14), and one end of each screw b (13) extending to the detection probe (10) and rotatably connected to the corresponding clamping plate (14).
4. The portable intelligent inspection device for steel structure welds according to claim 2, characterized in that: The fixing frame (11) is provided with a limiting component inside, which includes two limiting rods b (15) fixedly connected to one side of the clamping plate (14).
5. The portable intelligent inspection device for steel structure welds according to claim 4, characterized in that: The limiting rods b (15) are all slidably connected to the inside of the fixing frame (11), and the two limiting rods b (15) are respectively arranged on both sides of the screw b (13).
6. The portable intelligent inspection device for steel structure welds according to claim 3, characterized in that: The top of the detection probe (10) is fixedly connected with a wire, and the outer side of the circular steel component (1) is provided with a weld inspection instrument body. The weld inspection instrument body and the detection probe (10) are connected by a wire.
7. The portable intelligent inspection device for steel structure welds according to claim 3, characterized in that: A scale (16) is fixedly connected inside the fixing frame (11), and a pointer (17) is glued to the outside of the detection probe (10).
8. The portable intelligent inspection device for steel structure welds according to claim 1, characterized in that: Two locking bolts (4) are provided between the upper limit plate (2) and the lower limit plate (3), and the upper limit plate (2) and the lower limit plate (3) are connected by the locking bolts (4).