Auxiliary support for steel structure weld detection
By designing a synergistic structure between the limiting bracket and the clamping rod, the problems of versatility and stability of traditional brackets are solved, enabling stable clamping and blind-angle inspection of various testing equipment for steel pipes of different diameters, thereby improving testing accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JIANKE APPRAISAL CONSULTING CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional weld inspection brackets have low versatility, poor clamping stability, and cannot adapt to different pipe diameters or be compatible with various inspection equipment, resulting in low inspection efficiency and inconsistent accuracy.
An auxiliary support was designed, comprising a limiting bracket, a mounting groove, a mounting frame, a clamping rod, and an adjusting ring. It enables the rapid installation of various testing devices through bolt connections and threaded transmission. The synchronous extension and retraction of the clamping rod and the anti-loosening clamping structure ensure the center clamping of the steel pipe. Combined with moving ball bearings and spring pre-tensioning, it achieves stable clamping and blind-angle-free testing.
It achieves adaptive clamping of steel pipes of different diameters, is compatible with a variety of testing equipment, ensures that the distance between the testing equipment and the weld is consistent, improves the stability and accuracy of testing, and enhances testing efficiency and convenience.
Smart Images
Figure CN224373830U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of weld inspection, and in particular to an auxiliary support for inspecting welds in steel structures. Background Technology
[0002] In the manufacturing and installation of steel structures, weld quality inspection is a crucial step in ensuring project safety. Currently used non-destructive testing techniques such as X-ray, ultrasonic, and eddy current testing typically require the testing equipment to maintain a constant distance and angle from the weld to obtain accurate test results.
[0003] However, traditional testing supports have many limitations: special clamps are required for steel pipes of different diameters, resulting in low testing efficiency; ordinary clamps cannot ensure that the testing equipment is always in the center of the steel pipe, and the testing distance is easily inconsistent due to eccentricity; the equipment is prone to loosening and displacement during the testing process, affecting the testing accuracy; and most existing supports can only fix a single type of testing equipment and cannot be compatible with multiple testing technologies.
[0004] To address the aforementioned issues, this patent proposes an auxiliary support for weld inspection that can adapt to different pipe diameters, be compatible with various testing equipment, maintain stable clamping force, and achieve all-around inspection, thereby improving inspection efficiency and accuracy and meeting the high-standard quality requirements of modern steel structure engineering. Utility Model Content
[0005] The main purpose of this utility model is to propose an auxiliary support for steel structure weld inspection, which aims to solve the problems of low versatility and poor clamping stability of traditional inspection supports.
[0006] To address the aforementioned problems, this utility model proposes an auxiliary support for inspecting weld seams in steel structures, comprising a limiting support. An installation groove is formed on the upper rear side of the limiting support. Mounting brackets are connected to the left and right sides of the lower end of the installation groove, and both mounting brackets are connected to the inner wall of the limiting support. A detector is bolted between the two mounting brackets. Multiple front clamping rods and multiple rear clamping rods extend radially through the interior of the limiting support, with the front clamping rods located in front of the rear clamping rods and arranged in a rotationally symmetrical manner. The ends of the front clamping rods away from the central axis of the limiting support are connected to the rear clamping rods via connecting blocks. Anti-loosening clamping rods are slidably connected to the ends of the front and rear clamping rods near the central axis of the limiting support. Clamping sliders are connected to the ends of the anti-loosening clamping rods near the central axis of the limiting support. An adjustment ring is rotatably connected to the front end of the limiting support.
[0007] Preferably, the front end of the limiting bracket is provided with an adjustment groove, and the rear end of the adjustment ring is connected to a connecting ring, which is engaged inside the adjustment groove and rotatably connected to the adjustment groove.
[0008] Preferably, the rear end of the connecting ring is connected to an annular helical gear, and the annular helical gear is rotatably connected inside the adjusting groove, and the rear end of the adjusting groove is connected to multiple gear grooves.
[0009] Preferably, each of the plurality of gear slots is rotatably connected to a driving helical gear, and the plurality of driving helical gears are respectively threaded to the outside of the plurality of front clamping rods and mesh with the outer side of the rear end of the annular helical gear.
[0010] Preferably, each of the gear slots is provided with a limiting groove on its rear side, the limiting grooves are all opened inside the limiting bracket, and the multiple rear clamping rods are slidably connected inside the multiple limiting grooves.
[0011] Preferably, each of the plurality of anti-loosening clamping rods is provided with an anti-loosening spring at the end away from the clamping slide head, and the plurality of anti-loosening springs are respectively located inside the plurality of front clamping rods and the plurality of rear clamping rods, and each of the plurality of clamping slide heads is provided with a movable ball at the end away from the anti-loosening clamping rod.
[0012] Beneficial effects:
[0013] 1. The limit bracket of this utility model has an installation groove at the rear end, which, together with the mounting brackets on both sides and the bolt connection structure, can be flexibly adapted to various detectors such as X-ray, ultrasound, and eddy current detectors. The installation groove can accommodate extra-long equipment components, realizing the rapid installation and compatibility of different types of detection equipment, and solving the limitation of traditional brackets that only support a single device.
[0014] 2. This utility model uses a rotating ring to drive a ring helical gear to simultaneously mesh with multiple driving helical gears. It uses threaded transmission to push the front clamping rod and the rear clamping rod to slide radially along the limiting slide groove, realizing the synchronous extension and retraction of multiple clamping points. This ensures that the steel pipe is always clamped on the central axis of the support, avoiding detection spacing deviation caused by eccentricity and improving detection consistency.
[0015] 3. The clamping slider of this utility model has a built-in moving ball bearing, combined with the anti-loosening clamping rod pre-tightened by the anti-loosening spring. It can not only roll on the surface of the steel pipe to reduce friction, but also continuously apply clamping force through the spring to achieve adaptive fitting when the support moves along the axial and circumferential directions of the steel pipe, preventing positional displacement caused by loosening during the testing process and enhancing stability.
[0016] 4. The front clamping rod of this utility model is linked with the rear clamping rod through the connecting block. The rear clamping rod is constrained by the linear constraint of the limiting slide groove, which forces the rotational motion of the driving helical gear to be converted into the linear motion of the clamping rod, avoiding the slippage risk of traditional threaded clamping mechanisms and ensuring reliable clamping force transmission.
[0017] 5. The coordinated design of the adjusting rotating ring and the clamping slide head in this utility model allows the bracket to slide along the axial direction or rotate circumferentially in the clamped state. Combined with the adjustable installation position of the detector, it can achieve blind-angle coverage inspection of the weld, eliminating the need for repeated disassembly and assembly of the equipment, thus improving the convenience and efficiency of the inspection. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a three-dimensional structural diagram of the auxiliary support of this utility model;
[0020] Figure 2 This is a three-dimensional cross-sectional view of the auxiliary support structure of this utility model;
[0021] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;
[0022] Figure 4 This is a schematic diagram of the connection structure of the limiting bracket of this utility model;
[0023] Figure 5 This is a schematic diagram of the annular helical gear connection structure of this utility model;
[0024] Figure 6 For the present utility model Figure 5 Enlarged diagram of point B in the middle.
[0025] The annotations in the attached figures are explained as follows:
[0026] 1. Limiting bracket; 2. Mounting slot; 3. Mounting frame; 4. Detector; 5. Front clamping rod; 6. Rear clamping rod; 7. Anti-loosening clamping rod; 8. Clamping slide head; 9. Adjusting rotating ring; 10. Adjusting rotating groove; 11. Connecting rotating ring; 12. Annular helical gear; 13. Gear groove; 14. Drive helical gear; 15. Limiting slide groove; 16. Anti-loosening spring; 17. Moving ball. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] To achieve the above-mentioned utility model objectives, such as Figures 1-6 As shown, this utility model provides an auxiliary support for inspecting weld seams in steel structures, including a limiting support 1. A mounting groove 2 is provided on the upper rear side of the limiting support 1. Mounting brackets 3 are connected to the left and right sides of the lower end of the mounting groove 2, and both mounting brackets 3 are connected to the inner wall of the limiting support 1. A detector 4 is bolted between the two mounting brackets 3. Multiple front clamping rods 5 and multiple rear clamping rods 6 penetrate radially inside the limiting support 1. The multiple front clamping rods 5 are located in front of the multiple rear clamping rods 6 and are arranged in a rotationally symmetrical manner. The ends of the multiple front clamping rods 5 away from the central axis of the limiting support 1 are connected to the multiple rear clamping rods 6 respectively through connecting blocks. Anti-loosening clamping rods 7 are slidably connected to the ends of the multiple front clamping rods 5 and multiple rear clamping rods 6 near the central axis of the limiting support 1. Clamping sliders 8 are connected to the ends of the multiple anti-loosening clamping rods 7 near the central axis of the limiting support 1. 1. The front end is rotatably connected to an adjusting ring 9. During the monitoring of the weld seam of the steel pipe, the limiting bracket 1 can be clamped to the outside of the steel pipe by multiple front clamping rods 5 and multiple rear clamping rods 6. The detector 4 can be installed inside the limiting bracket 1 by two mounting brackets 3. The limiting bracket 1 can allow a longer detector 4 to protrude outside the limiting bracket 1 through the opening of the mounting groove 2, ensuring that the limiting bracket 1 can install different types of detectors 4, so that the detector 4 can be restricted in position with the steel pipe and the weld seam by the limiting bracket 1, ensuring that the detection conditions of the detector 4 at each position of the weld seam are consistent. In addition, the limiting bracket 1 can clamp steel pipes of different diameters by sliding inward and outward through multiple front clamping rods 5 and multiple rear clamping rods 6, and the detector 4 can move to various positions of the weld seam for detection by sliding the clamping slide head 8 outside the steel pipe.
[0029] The detector 4 can employ X-ray detection, gamma-ray detection, ultrasonic detection, eddy current detection, and scanning detection equipment. The working principles of the above-mentioned detection equipment are existing known and publicly available technologies, and will not be elaborated on here.
[0030] Preferably, the front end of the limiting bracket 1 has an adjustment groove 10, and the rear end of the adjustment ring 9 is connected to a connecting ring 11. The connecting ring 11 is engaged inside the adjustment groove 10 and rotatably connected to it. The rear end of the connecting ring 11 is connected to a ring helical gear 12, which is rotatably connected inside the adjustment groove 10. The rear end of the adjustment groove 10 is connected to multiple gear grooves 13. Each gear groove 13 is rotatably connected to a driving helical gear 14, which is threaded to the outside of multiple front clamping rods 5 and meshes with the outer rear end of the ring helical gear 12. Each gear groove 13 has a limiting slide groove 15 on its rear side. The multiple limiting slide grooves 15 are all opened inside the limiting bracket 1, and the multiple rear clamping rods 6 are slidably connected inside the multiple limiting slide grooves 15. During the process of clamping the limiting bracket 1 to the outside of the steel pipe, from One end of the steel pipe is fitted into the limiting bracket 1, and then the adjusting ring 9 is rotated. At this time, the adjusting ring 9 drives the connecting ring 11 and the annular helical gear 12 to rotate inside the adjusting groove 10. Through the meshing between the annular helical gear 12 and multiple driving helical gears 14, the multiple driving helical gears 14 are driven to rotate. Since the driving helical gears 14 are threaded to the outside of the front clamping rod 5, and the position of the front clamping rod 5 is restricted by the rear clamping rod 6 and the limiting slide groove 15, it can only slide inward and outward and cannot rotate. Therefore, the driving helical gears 14 can drive the front clamping rod 5 to slide closer to the steel pipe through rotation and threaded connection. And through the front clamping rod 5 and the connecting block, the multiple rear clamping rods 6 are driven to slide closer to the steel pipe. The multiple front clamping rods 5 and the multiple rear clamping rods 6 are clamped to the outside of the steel pipe by the anti-loosening clamping rod 7 and the clamping slide head 8, thereby clamping the limiting bracket 1 to the outside of the steel pipe.
[0031] Since the annular helical gear 12 can simultaneously drive multiple driving helical gears 14 to rotate, the multiple driving helical gears 14 can synchronously drive multiple front clamping rods 5 to slide inward and outward, so that the multiple front clamping rods 5 can clamp the steel pipe at the central axis position of the limiting bracket 1. This ensures that the distance between the limiting bracket 1 and the steel pipe remains consistent, whether the limiting bracket 1 slides or rotates inward or outward, ensuring that the distance between the detector 4 and the weld remains consistent, ensuring that the detection conditions remain consistent, and improving the detection accuracy.
[0032] Preferably, each of the multiple anti-loosening clamping rods 7 is provided with an anti-loosening spring 16 at the end away from the clamping slide head 8, and the multiple anti-loosening springs 16 are respectively located inside the multiple front clamping rods 5 and multiple rear clamping rods 6. Each of the multiple clamping slide heads 8 is provided with a movable ball 17 at the end away from the anti-loosening clamping rod 7. During the clamping process of the steel pipe, the front clamping rods 5 and rear clamping rods 6 can be clamped to the outside of the steel pipe by the clamping slide head 8, and the clamping slide head 8 can contact the outer wall of the steel pipe by the movable ball 17. Since the movable ball 17 can roll on the outer wall of the steel pipe, the clamping slide head 8 can reduce the sliding resistance on the outer wall of the steel pipe by the movable ball 17. The clamping slide head 8 can slide back and forth outside the steel pipe and can also rotate around the steel pipe, so that the limiting bracket 1 can slide back and forth outside the steel pipe and rotate outside the steel pipe, ensuring that the detector 4 can detect the weld at any position outside the steel pipe.
[0033] In addition, during the clamping movement, the anti-loosening clamping rod 7, under the action of the anti-loosening spring 16, always pushes the clamping slide head 8 closer to the steel pipe, so that the clamping slide head 8 can fit tightly against the outside of the steel pipe, preventing loosening, improving the connection stability between the limit bracket 1 and the steel pipe, and improving the positional stability between the detector 4 and the weld.
[0034] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. An auxiliary support for steel structure weld inspection, characterized by, The device includes a limiting bracket (1), which has an installation groove (2) on its upper rear end. The lower end of the installation groove (2) is connected to two mounting brackets (3) on both sides. Both mounting brackets (3) are connected to the inner wall of the limiting bracket (1). A probe (4) is bolted between the two mounting brackets (3). Multiple front clamping rods (5) and multiple rear clamping rods (6) are radially inserted inside the limiting bracket (1), and the multiple front clamping rods (5) are located in front of the multiple rear clamping rods (6). The multiple front clamping rods (5) are arranged in a rotationally symmetrical manner. The ends of the multiple front clamping rods (5) away from the central axis of the limiting bracket (1) are connected to the multiple rear clamping rods (6) respectively through connecting blocks. The multiple front clamping rods (5) and the multiple rear clamping rods (6) are all slidably connected to the anti-loosening clamping rods (7) at the ends of the multiple anti-loosening clamping rods (7) near the central axis of the limiting bracket (1). The ends of the multiple anti-loosening clamping rods (7) near the central axis of the limiting bracket (1) are all connected to clamping slide heads (8). The front end of the limiting bracket (1) is rotatably connected to an adjustment ring (9).
2. The auxiliary support for inspecting weld seams in steel structures as described in claim 1, characterized in that, The front end of the limiting bracket (1) is provided with an adjustment groove (10), and the rear end of the adjustment ring (9) is connected to a connecting ring (11), and the connecting ring (11) is engaged inside the adjustment groove (10) and rotatably connected to the adjustment groove (10).
3. The auxiliary support for inspecting steel structure welds as described in claim 2, characterized in that, The rear end of the connecting ring (11) is connected to an annular helical gear (12), and the annular helical gear (12) is rotatably connected inside the adjustment groove (10). The rear end of the adjustment groove (10) is connected to multiple gear grooves (13).
4. The auxiliary support for inspecting steel structure welds as described in claim 3, characterized in that, Each of the gear slots (13) is rotatably connected to a drive helical gear (14), and the drive helical gears (14) are threaded to the outside of the multiple front clamping rods (5) and mesh with the outer side of the rear end of the ring helical gear (12).
5. The auxiliary support for inspecting steel structure welds as described in claim 4, characterized in that, Each of the gear slots (13) is provided with a limiting groove (15) on its rear side. Each of the limiting grooves (15) is opened inside the limiting bracket (1), and each of the rear clamping rods (6) is slidably connected inside the multiple limiting grooves (15).
6. The auxiliary support for inspecting weld seams in steel structures as described in claim 1, characterized in that, Each of the multiple anti-loosening clamping rods (7) is provided with an anti-loosening spring (16) at the end away from the clamping slide head (8), and the multiple anti-loosening springs (16) are respectively located inside the multiple front clamping rods (5) and multiple rear clamping rods (6). Each of the multiple clamping slide heads (8) is provided with a movable ball (17) at the end away from the anti-loosening clamping rod (7).