Radiographic detection film arrangement device

Abstract

The utility model provides a radiographic inspection film arrangement device, which belongs to the field of radiographic inspection and comprises a retainer, a camera bag lead plate mounting part is arranged on one side of the retainer, a hinge seat is arranged on the other side of the retainer, a telescopic rod is hinged on the hinge seat, and the axial direction of a hinge shaft of the telescopic rod and the hinge seat is the length direction of the retainer. The device has the beneficial effects that the device can assist a worker to arrange films under the condition of lacking a manhole, so that the film arrangement accuracy and protection requirements are met, and single-wall transillumination of a workpiece can be ensured.

Description

Technical Field

[0001] This utility model belongs to the field of X-ray inspection, and specifically relates to a X-ray inspection film arrangement device. Background Technology

[0002] As a crucial component connecting metal parts, the quality of welds directly affects the safety and stability of the entire structure. Especially in industries such as aerospace, shipbuilding, and petrochemicals, weld defects can potentially lead to serious safety accidents, causing significant economic losses and even casualties. Therefore, after the welding process is completed, workers must conduct rigorous inspections of the welds to promptly identify and repair potential defects, thereby ensuring the safe and reliable operation of the project.

[0003] Currently, among numerous weld inspection methods, radiographic testing stands out due to its unique advantages. It can clearly display the internal structural information of the weld without damaging the original structure and properties of the workpiece, accurately detecting various defects such as porosity, slag inclusions, and cracks. Furthermore, it can record defect information via film, facilitating subsequent analysis and archiving.

[0004] However, in the actual process of radiographic inspection of welds, various complex situations arise. One common situation is that for some workpieces, due to the combined influence of factors such as space constraints, process requirements, and cost control, these workpieces are designed with only pipes or handholes but no manholes. This prevents workers from entering the workpiece to place the film and makes it difficult to meet the requirements of single-wall radiography. Utility Model Content

[0005] The purpose of this invention is to address the problem of difficult film placement in existing weld radiographic inspection processes by proposing and designing a radiographic film placement device that can assist workers in film placement even in the absence of manholes, thereby meeting the accuracy and protection requirements of film placement and ensuring that the workpiece can be radiographed from one wall.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows: a radiographic film arrangement device, which includes a retainer, one side of the retainer is provided with a dark bag lead plate mounting part, the other side of the retainer is provided with a hinge seat, a telescopic rod is hinged on the hinge seat, and the axial direction of the hinge axis between the telescopic rod and the hinge seat is the length direction of the retainer. When arranging the film using this invention, first, according to the weld condition, place the corresponding specification film pouch and back protective lead plate at the pouch / lead plate mounting part. Then, shorten the telescopic rod to its shortest length and rotate it to a state parallel to the retainer to reduce the overall size of the device. Next, place the entire device inside the workpiece through the opening. Then, the operator can reach inside the workpiece, first rotating the telescopic rod so that its extension direction is perpendicular to the length direction of the retainer. Then, adjust the length of the telescopic rod according to the weld position of the workpiece to be inspected, and support the end of the telescopic rod on the workpiece. Finally, adjust the position of the retainer so that the center line of the retainer's length coincides with the weld, and the center line of the retainer's width coincides with the center mark of the weld. This completes the arrangement of the entire device inside the workpiece, and X-ray irradiation is performed. After X-ray irradiation is complete, the operator can first retract the telescopic rod, then rotate it to a state parallel to the length direction of the retainer, and finally remove the entire device through the opening.

[0007] Furthermore, the cage includes an intermediate section, with a hinge seat on the back of the intermediate section. At least one extension section is sequentially hinged to both the left and right sides of the intermediate section along its width. A concealed lead plate mounting portion is provided on the front of the extension sections and / or the front of the intermediate section. The number of extension sections can be flexibly selected according to the weld length of the workpiece. Thus, because the cage in this invention adopts a structure assembled from an intermediate section and multiple extension sections, it can be bent according to the actual conditions of the weld and the workpiece to adapt to changes in the workpiece's curvature.

[0008] Furthermore, the left and right edges of the intermediate section are each provided with a first insertion groove, and the lower and upper walls of the first insertion groove are each provided with a first snap-fit ​​protrusion; the extension section includes a left extension section for installation on the left side of the intermediate section and a right extension section for installation on the right side of the intermediate section. The left edge of the left extension section is provided with a second insertion groove, and the lower and upper walls of the second insertion groove are each provided with a second snap-fit ​​protrusion. The right edge of the left extension section is provided with a first insertion boss, which can be inserted into either the first or the second insertion groove; the upper and lower ends of the first insertion boss are each provided with a snap-fit ​​protrusion. The first insertion groove can be inserted into either the first or the second insertion protrusion. The right edge of the right extension section is provided with the third insertion groove, and both the lower and upper walls of the third insertion groove are provided with the third insertion protrusion. The left edge of the right extension section is provided with the second insertion boss, which can be inserted into either the first or the third insertion groove. The upper and lower ends of the second insertion boss are provided with the second insertion groove, which can be inserted into either the first or the third insertion protrusion, thereby realizing the insertion connection between adjacent extension sections and the insertion connection between the extension section and the intermediate section.

[0009] Furthermore, the back of the intermediate section is marked with a length centerline and a width centerline, which helps workers align the center of the intermediate section with the weld, thereby making the film and weld positioning more accurate.

[0010] Furthermore, the number of extension sections on both sides of the intermediate section is the same to ensure that the intermediate section is subjected to uniform force.

[0011] Furthermore, the cage is made of plastic and has a certain degree of elasticity to ensure that it can deform to a certain extent within the workpiece.

[0012] Furthermore, an arc-shaped support is provided at the end of the telescopic rod away from the hinge seat, and this arc-shaped support prevents the end of the telescopic rod from scratching the inner cavity of the workpiece.

[0013] As can be seen from the above technical solutions, this utility model has the following advantages: First, since the telescopic rod in this utility model adopts a rotatable structure and is installed on the back of the retainer, this utility model can flexibly adjust the overall size, thereby making it convenient for workers to insert it into the workpiece through the opening on the workpiece surface; Second, since the retainer in this utility model adopts a structure assembled from an intermediate section and multiple extension sections, this utility model can adapt to circumferential welds of different sizes according to the curvature of the circumferential weld, and can also be directly used to inspect longitudinal welds. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description 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.

[0015] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the intermediate section in this utility model;

[0017] Figure 3 This is a rear view of the right extension section in this utility model;

[0018] Figure 4 This is a bottom view of the right extension section in this utility model;

[0019] Figure 5 This is a schematic diagram of the telescopic rod in this utility model;

[0020] Figure 6 This is a schematic diagram showing the fit between the present invention and the workpiece.

[0021] In the diagram: 1. Telescopic rod; 2. Left extension section; 3. Middle section; 4. Hinge seat; 5. Right extension section; 6. Arc-shaped support; 7. Dark bag lead plate mounting section; 8. Snap-fit ​​protrusion three; 9. Insertion protrusion two; 10. Snap-fit ​​groove two; 11. Insertion groove three; 12. Insertion groove one; 13. Snap-fit ​​protrusion one; 14. Cage; 15. X-ray source; 16. Workpiece. Detailed Implementation

[0022] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0023] like Figures 1 to 5 As shown, this utility model provides a radiographic film arrangement device, which includes a retainer 14 and a telescopic rod 1 hinged to the back of the retainer 14.

[0024] The retainer 14 is assembled from an intermediate section 3 and multiple extension sections, and is made of a material with a certain degree of elasticity, such as plastic. Figure 1 , Figure 2As shown, the intermediate section 3 is I-shaped, and a hinge seat 4 is provided on the back of the intermediate section 3. The hinge seat 4 is hinged to one end of the telescopic rod 1 by a hinge shaft structure such as bolts, and the axial direction of the hinge shaft between the telescopic rod 1 and the hinge seat 4 is the length direction of the retainer 14. This ensures that the extension direction of the telescopic rod 1 can be rotated to a state parallel to the length direction of the retainer 14 to reduce the overall size and space occupied, and can also be rotated to a state perpendicular to the length direction of the retainer 14 to support the entire device inside the workpiece. The left and right edges of the intermediate section 3 are provided with insertion grooves 12, and the lower and upper walls of the insertion grooves 12 are provided with snap-fit ​​protrusions 13. The insertion grooves 12 are spliced ​​with the corresponding extension sections, and the snap-fit ​​protrusions 13 are used to snap and fix the corresponding extension sections.

[0025] like Figure 1 , Figure 3 , Figure 4 As shown, the extension section includes a left extension section 2 for mounting on the left side of the middle section 3 and a right extension section 5 for mounting on the right side of the middle section 3. The left extension section 2 and the right extension section 5 are symmetrically arranged, and both the front of the left extension section 2 and the front of the right extension section 5 are provided with a hidden pocket lead plate mounting part 7. The hidden pocket lead plate mounting part 7 adopts a structure in which a snap-fit ​​groove is provided at the upper and lower ends of the front of each extension section, and the film hidden pocket and the back protective lead plate are snapped onto the front of each extension section through the snap-fit ​​groove. Moreover, preferably, the above-mentioned hidden pocket lead plate mounting part 7 can also be provided on the front of the middle section 3.

[0026] The left edge of the left extension section 2 is provided with a second insertion groove for inserting into an adjacent left extension section 2. Both the lower and upper walls of the second insertion groove are provided with second locking protrusions. The right edge of the left extension section 2 is provided with a first insertion boss for inserting into an adjacent left extension section 2 or an intermediate section 3, allowing the first insertion boss to engage with either the first insertion groove 12 or the second insertion groove. Both the upper and lower ends of the first insertion boss are provided with first locking grooves, allowing the first locking grooves to engage with either the first locking protrusion 13 or the second locking protrusion, thus enabling splicing between adjacent left extension sections 2 or between a left extension section 2 and an intermediate section 3. The right edge of the right extension section 5 is provided with a third insertion groove 11 for inserting into an adjacent right extension section 5, and both the lower and upper walls of the third insertion groove 11 are provided with third locking protrusions 8. The left edge of the right extension section 5 is provided with a second insertion boss 9 for inserting into an adjacent right extension section 5 or an intermediate section 3, and the second insertion boss 9 can be inserted into an insertion groove 12 or an insertion groove 311. The upper and lower ends of the second insertion boss 9 are provided with a second locking groove 10, and the second locking groove 10 can be inserted into a first locking protrusion 13 or a third locking protrusion 8, thereby realizing the splicing between adjacent right extension sections 5 or the insertion between the right extension section 5 and the intermediate section 3.

[0027] In other embodiments, besides the structure described above, the protrusions can be replaced with grooves, and the protrusions and bosses can be replaced with grooves, as long as the insertion of the intermediate section 3 and the extension section can be achieved.

[0028] In addition, as a preferred embodiment, the present invention may also provide a length centerline mark and a width centerline mark on the back of the intermediate section 3, and use the marks to assist the workers in aligning the center of the intermediate section 3 with the weld, thereby making the positioning of the film and the weld more accurate.

[0029] like Figure 5 As shown, the telescopic rod 1 preferably adopts a telescopic structure in which multiple sleeves are connected together by threads, and an arc-shaped support part 6 is provided at the end of the telescopic rod 1 away from the hinge seat 4, and the arc-shaped support part 6 is used to prevent the end of the telescopic rod 1 from causing scratches on the inner cavity of the workpiece.

[0030] Therefore, when using this invention to arrange the film, such as Figure 6As shown, the device can first be configured by placing the corresponding size film bag and back protective lead plate at the lead plate mounting part 7 according to the weld condition. Then, the telescopic rod 1 is shortened to its shortest length and rotated to be parallel to the retainer 14 to reduce the overall size of the device. Next, the entire device is placed inside the workpiece through the opening. Then, the operator can reach inside the workpiece and rotate the telescopic rod 1 so that its extension direction is perpendicular to the length direction of the retainer 14. Next, the length of the telescopic rod 1 is adjusted according to the weld position of the workpiece to be inspected, and the end of the telescopic rod 1 is supported on the workpiece. Finally, the position of the retainer 14 is adjusted so that the center line of the retainer 14's length coincides with the weld, and the center line of the retainer 14's width coincides with the center mark of the weld. This completes the placement of the entire device inside the workpiece for X-ray irradiation. After the X-ray irradiation is complete, the operator can first retract the telescopic rod 1, then rotate it to be parallel to the length direction of the retainer 14, and finally remove the entire device through the opening.

[0031] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A radiographic film arrangement device comprising a holder (14), one side of the holder (14) being provided with a pocket lead plate mounting portion (7) ; characterized in that, The other side of the retainer (14) is provided with a hinged seat (4), and a telescopic rod (1) is hinged to the hinged seat (4), and the axial direction of the hinged shaft of the hinged seat (4) is the length direction of the retainer (14).

2. The radiographic film arrangement apparatus of claim 1, wherein, The retainer (14) comprises a middle section (3), the back of the middle section (3) is provided with a hinged seat (4), and the left and right sides of the middle section (3) are sequentially hinged with at least one extension section along the width direction of the middle section (3), and the front of the extension section and / or the front of the middle section (3) is provided with a hidden bag lead plate mounting portion (7).

3. The radiographic film arrangement apparatus of claim 2, wherein, The left edge and the right edge of the middle section (3) are provided with a plug-in groove one (12), and the lower groove wall and the upper groove wall of the plug-in groove one (12) are provided with a clamping protrusion one (13); the extension section comprises a left extension section (2) for being installed on the left side of the middle section (3) and a right extension section (5) for being installed on the right side of the middle section (3), the left edge of the left extension section (2) is provided with a plug-in groove two, the lower groove wall and the upper groove wall of the plug-in groove two are provided with a clamping protrusion two, and the right edge of the left extension section (2) is provided with a plug-in boss one, which can be plugged with the plug-in groove one (12) or the plug-in groove two; the upper end and the lower end of the plug-in boss one are provided with a clamping groove one, which can be plugged with the clamping protrusion one (13) or the clamping protrusion two; the right edge of the right extension section (5) is provided with a plug-in groove three (11), the lower groove wall and the upper groove wall of the plug-in groove three (11) are provided with a clamping protrusion three (8), and the left edge of the right extension section (5) is provided with a plug-in boss two (9), which can be plugged with the plug-in groove one (12) or the plug-in groove three (11); the upper end and the lower end of the plug-in boss two (9) are provided with a clamping groove two (10), which can be plugged with the clamping protrusion one (13) or the clamping protrusion three (8).

4. A radiographic film arrangement according to claim 2 or 3, c h a r a c t e r i s e d in that The back of the middle section (3) is provided with a length center line mark and a width center line mark.

5. A radiographic film arrangement according to claim 2 or 3, c h a r a c t e r i z e d in that The number of extension sections on both sides of the middle section (3) is the same.

6. The radiographic film arrangement apparatus according to claim 1 or 2 or 3, wherein, The material of the retainer (14) is plastic.

7. The radiographic film arrangement apparatus according to claim 1 or 2 or 3, wherein, The end of the telescopic rod (1) away from the hinged seat (4) is provided with an arc-shaped support portion (6).

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