Radiographic examination room for weld inspection

By improving the door structure and clamping components of the flaw detection chamber, the problem of X-ray leakage was solved, enabling safe and efficient weld inspection.

CN224287792UActive Publication Date: 2026-05-26SHENYANG HONGQI THERMAL EQUIP MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENYANG HONGQI THERMAL EQUIP MFG CO LTD
Filing Date
2025-03-31
Publication Date
2026-05-26

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Abstract

This utility model relates to the technical field of welding flaw detection equipment, and discloses a radiographic flaw detection chamber for weld inspection, including a flaw detection room. A push door is slidably connected to the outer side of the flaw detection room, and multiple connecting rods are rotatably connected to the outer side of the push door. A movable groove is formed on the outer side of the flaw detection room, and an internal groove is formed inside the push door. A baffle is slidably connected to the inner wall of the internal groove. A pull rod is fixedly connected to one side of the baffle, and a limit rod is fixedly connected to the other side of the baffle. A spring is sleeved on the outer side of the limit rod. In this utility model, by pulling the handle, the push door fits against the inner wall of the movable groove. The engagement of the locking block and the locking groove further improves the stability of the push door, preventing it from disengaging from the movable groove during inspection. With the cooperation of the sealing strip and the sealing groove, gaps are further reduced, preventing radiation leakage from affecting the use of other electronic equipment and protecting equipment and property safety.
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Description

Technical Field

[0001] This utility model relates to the field of welding flaw detection equipment technology, and in particular to a radiographic flaw detection chamber for weld inspection. Background Technology

[0002] A radiographic testing room is a specialized facility and equipment used for radiographic inspection. Weld inspection is a process used to assess the quality of welded joints, aiming to identify the presence of defects in the weld, such as cracks, porosity, inclusions, and incomplete penetration. These defects can affect the strength and durability of the welded structure, thus requiring a radiographic testing room to accurately inspect the welds.

[0003] However, existing radiographic testing chambers have many straight seams and holes between the testing door and the chamber, allowing radiation to pass through and posing a threat to the health of workers. Therefore, a radiographic testing chamber for weld inspection has been proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a radiographic testing chamber for weld inspection, which aims to improve the problem that existing radiographic testing chambers are prone to radiation leakage, causing damage to the surrounding environment and ecosystem.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a radiographic testing chamber for weld inspection, comprising a testing room, a sliding door slidably connected to the outside of the testing room, multiple connecting rods rotatably connected to the outside of the sliding door, a movable groove on the outside of the testing room, an internal groove on the inside of the sliding door, a baffle slidably connected to the inner wall of the internal groove, a pull rod fixedly connected to one side of the baffle, a limit rod fixedly connected to the other side of the baffle, a spring one sleeved on the outside of the limit rod, a control groove on the inner side wall of the internal groove, a spring two fixedly connected to the inner wall of the control groove, a locking block fixedly connected to the other end of the spring two, a triangular block fixedly connected to the outside of the locking block, a locking groove on the outside of the testing room, and a clamping assembly installed inside the testing room.

[0006] As a further description of the above technical solution:

[0007] The clamping assembly includes a support platform. The bottom of the support platform is fixedly connected to the inner bottom wall of the flaw detection room. Two fixing members are fixedly connected to the top of the support platform. A motor is fixedly connected to the inner wall of the fixing members. A turntable is rotatably connected to the inner wall of the fixing members. Multiple moving parts are rotatably connected to the outside of the turntable. Multiple sliding rods are fixedly connected to the outside of the turntable. Connecting blocks are slidably connected to the outside of the sliding rods. Clamping members are fixedly connected to the outside of the connecting blocks. Multiple mounting slots are opened on the outside of the fixing members. Two guide rails are fixedly connected to the top of the support platform. Slider blocks are slidably connected to the outside of the guide rails.

[0008] As a further description of the above technical solution:

[0009] One end of the spring is fixedly connected to the outer side of the baffle, and the other end of the spring is fixedly connected to the inner wall of the inner groove. The shape of the locking block matches the locking groove, and the locking block and the locking groove are in a plug-in fit.

[0010] As a further description of the above technical solution:

[0011] A handle is fixedly connected to the outside of the push door, and the ends of the multiple connecting rods away from the push door are rotatably connected to the inner wall of the flaw detection room.

[0012] As a further description of the above technical solution:

[0013] A sealing strip is fixedly connected to the outer side of the push door, and a sealing groove is formed on the inner side wall of the movable groove.

[0014] As a further description of the above technical solution:

[0015] A projection plate is fixedly connected to the top of one of the sliders, a detection block is fixedly connected to the top of the other slider, a cylinder is fixedly connected to the top of the detection block, and a detection tube is fixedly connected to the output shaft of the cylinder.

[0016] As a further description of the above technical solution:

[0017] The end of the movable component away from the turntable is rotatably connected to the outer side of the connecting block, and the movable component is configured in an arc shape.

[0018] As a further description of the above technical solution:

[0019] The clamping member has a square longitudinal section, and the outside of the clamping member is slidably connected to the inner wall of the mounting groove.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, by pulling the handle, the push door is made to fit against the inner wall of the movable groove, and the insertion and cooperation of the locking block and the locking groove further improves the stability of the push door and prevents the push door from falling out of the movable groove during testing. With the cooperation of the sealing strip and the sealing groove, the gaps are further reduced, avoiding radiation leakage from affecting the use of other electronic equipment and protecting the safety of equipment and property.

[0022] 2. In this utility model, the moving part drives the clamping part to converge, thereby clamping and fixing both ends of the bellows, so that it is always kept in the correct position during inspection. By moving the inspection tube, the weld can be fully and accurately inspected, further improving the inspection efficiency. The clamping can reduce the risk of operators coming into contact with the bellows and reduce the incidence of accidental injury. Attached Figure Description

[0023] Figure 1 This is a perspective view of the radiographic testing chamber for weld inspection proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the connecting rod structure of the radiographic testing chamber for weld inspection proposed in this utility model.

[0025] Figure 3 This is a schematic diagram of the detection block structure of the X-ray flaw detection chamber for weld inspection proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the rotary table structure of the X-ray inspection chamber for weld inspection proposed in this utility model;

[0027] Figure 5 This is a schematic diagram showing the installation position of the motor 2 in the X-ray flaw detection chamber for weld inspection proposed in this utility model;

[0028] Figure 6 for Figure 3 Enlarged view of point A in the middle;

[0029] Figure 7 This is a cross-sectional view of the sliding door of the X-ray inspection chamber for weld inspection proposed in this utility model.

[0030] Legend:

[0031] 1. Flaw detection room; 2. Pull rod; 3. Push door; 4. Connecting rod; 5. Support platform; 6. Guide rail; 7. Slider; 8. Fixing component; 9. Clamping component; 10. Mounting slot; 11. Detection block; 12. Cylinder; 13. Detection tube; 14. Projection board; 15. Turntable; 16. Motor II; 17. Connecting block; 18. Slide rod; 19. Moving component; 20. Sealing slot; 21. Movable slot; 22. Baffle; 23. Spring I; 24. Internal slot; 25. Limiting rod; 26. Spring II; 27. Control slot; 28. Locking block; 29. ​​Locking groove; 30. Triangular block; 31. Sealing strip. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0033] Reference Figure 2 , Figure 3 and Figure 6 An embodiment of this utility model provides a radiographic testing chamber for weld inspection, comprising a testing room 1, a sliding door 3 slidably connected to the outside of the testing room 1, a plurality of connecting rods 4 rotatably connected to the outside of the sliding door 3, an movable groove 21 on the outside of the testing room 1, an internal groove 24 on the inside of the sliding door 3, a baffle 22 slidably connected to the inner wall of the internal groove 24, a pull rod 2 fixedly connected to one side of the baffle 22, a limit rod 25 fixedly connected to the other side of the baffle 22, a spring 23 sleeved on the outside of the limit rod 25, a control groove 27 on the inner wall of the internal groove 24, a spring 26 fixedly connected to the inner wall of the control groove 27, a locking block 28 fixedly connected to the other end of the spring 26, a triangular block 30 fixedly connected to the outside of the locking block 28, a locking groove 29 on the outside of the testing room 1, and a clamping assembly installed inside the testing room 1.

[0034] Furthermore, when it is necessary to open the push door 3, press the pull rod 2 inward. The pull rod 2 drives the baffle 22 to slide, which in turn drives the limit rod 25 to move simultaneously. At the same time, under the action of the limit rod 25, the triangular block 30 drives the locking block 28 to slide until the locking block 28 is completely retracted into the control groove 27. Simultaneously, the operator holds the handle and pulls it backward. Multiple connecting rods 4 rotate simultaneously, causing the push door 3 to separate from the flaw detection room 1. When the connecting rods 4 and the push door 3 are perpendicular to each other, push the handle to one side. The handle drives the push door 3 to move simultaneously until the outer side of the push door 3 is aligned with the outer side of the flaw detection room 1. When the parts are in contact, the push door 3 is opened. When it is necessary to close the push door 3, the staff pulls the push door 3. When the connecting rod 4 is perpendicular to the push door 3, push the handle to one side. At this time, press the pull rod 2 and repeat the above steps. At this time, the second spring 26 is in a compressed state. When the outside of the push door 3 is in contact with the inner wall of the movable groove 21, release the pull rod 2. Under the elastic force of the second spring 26, the outside of the locking block 28 is in contact with the inside of the locking groove 29, thus closing the push door 3. The tight fit between the push door 3 and the flaw detection room 1 effectively prevents radiation leakage and affects the normal use of electronic products.

[0035] Reference Figure 3 , Figure 4 and Figure 5The clamping assembly includes a support platform 5. The bottom of the support platform 5 is fixedly connected to the inner bottom wall of the flaw detection room 1. The top of the support platform 5 is fixedly connected to two fixing parts 8. The inner wall of the fixing parts 8 is fixedly connected to a motor 16. The inner wall of the fixing parts 8 is rotatably connected to a turntable 15. The outside of the turntable 15 is rotatably connected to multiple moving parts 19. The outside of the turntable 15 is fixedly connected to multiple sliding rods 18. The outside of the sliding rods 18 is slidably connected to a connecting block 17. The outside of the connecting block 17 is fixedly connected to a clamping part 9. Multiple mounting slots 10 are opened on the outside of the fixing parts 8. The top of the support platform 5 is fixedly connected to two guide rails 6. The outside of the guide rails 6 is slidably connected to a slider 7.

[0036] Furthermore, the corrugated pipe is placed in the designated position, and motor 16 is started. The output end of motor 16 drives turntable 15 to rotate, which in turn drives multiple moving parts 19 to rotate simultaneously. Under the rotation of the moving parts 19, the connecting block 17 moves along the outside of the slide rod 18 toward the center of the fixing part 8. The connecting block 17 then drives the clamping part 9 to slide along the inner wall of the mounting groove 10. The two ends of the corrugated pipe are clamped and fixed by the multiple clamping parts 9 to ensure that the corrugated pipe is in the correct position so that the detection tube 13 can accurately detect it. At the same time, cylinder 12 is started, and the output end of cylinder 12 drives the detection tube 13 to move up and down to detect one of the welding parts. The image is projected onto the film surface on the outside of the projection plate 14. At this time, the guide rail 6 drives the slider 7 to slide, which in turn drives the detection tube 13 and the projection plate 14 to slide simultaneously to detect the other welding parts of the corrugated pipe.

[0037] Reference Figure 1 , Figure 2 and Figure 7 One end of spring 23 is fixedly connected to the outer side of baffle 22, and the other end of spring 23 is fixedly connected to the inner wall of inner groove 24. The shape of the locking block 28 matches the locking groove 29, and the locking block 28 and the locking groove 29 are plugged in.

[0038] Furthermore, the baffle 22 is limited and fixed by the spring 23 to prevent the baffle 22 from sliding freely along the inner wall of the inner groove 24, so that the locking block 28 is disengaged from the slot 29, further improving the stability of the push door 3. The push door 3 is further fixed by the locking block 28 being inserted into the slot 29, so that the push door 3 fits more tightly with the movable groove 21.

[0039] Reference Figure 1 , Figure 2 and Figure 3 A handle is fixedly connected to the outside of the push door 3, and the ends of multiple connecting rods 4 away from the push door 3 are rotatably connected to the inner wall of the flaw detection room 1; a sealing strip 31 is fixedly connected to the outside of the push door 3, and a sealing groove 20 is opened on the inner side wall of the movable groove 21.

[0040] Furthermore, by pulling the handle, it is more convenient for staff to open and close the push door 3, and easier for staff to control the push door 3. The push door 3 is connected to the flaw detection room 1 through multiple connecting rods 4. Under the action of multiple connecting rods 4, it is more convenient for staff to use the push door 3. Through the cooperation of the sealing strip 31 and the sealing groove 20, it is effectively prevented from the leakage of radiation through the gaps, and the protection is further strengthened.

[0041] Reference Figure 3 , Figure 4 and Figure 5 One of the sliders 7 has a projection plate 14 fixedly connected to its top, and another slider 7 has a detection block 11 fixedly connected to its top. The top of the detection block 11 has a cylinder 12 fixedly connected to its top, and the output shaft of the cylinder 12 has a detection tube 13 fixedly connected to its top. The end of the moving part 19 away from the turntable 15 is rotatably connected to the outside of the connecting block 17, and the moving part 19 is set in an arc shape. The longitudinal section of the clamping part 9 is square, and the outside of the clamping part 9 is slidably connected to the inner wall of the mounting groove 10.

[0042] Furthermore, under the action of the cylinder 12, the detection tube 13 moves up and down to detect the weld, thereby forming an image on the film on the projection plate 14; the moving part 19 drives the connecting block 17 to slide along the outside of the slide rod 18. The purpose of setting the moving part 19 to an arc shape is to better fit with the turntable 15 and ensure the effectiveness of the structure; when the moving part 19 moves, the clamping part 9 slides along the inner wall of the mounting groove 10, which improves the stability of the clamping part 9.

[0043] Working principle: When the push door 3 needs to be opened, press the pull rod 2 inward. The pull rod 2 drives the baffle 22 to slide, which in turn drives the limit rod 25 to move simultaneously. At the same time, the limit rod 25 pushes the triangular block 30 to one side, which drives the locking block 28 to slide, causing the locking block 28 to disengage from the slot 29. Meanwhile, the operator holds the handle and pulls it backward, causing multiple connecting rods 4 to rotate simultaneously until the outer side of the push door 3 is in contact with the outside of the flaw detection room 1, thus opening the push door 3. When the push door 3 needs to be closed, the operator pulls the push door 3 and presses the pull rod 2, repeating the above steps. At this time, the second spring 26 is in a compressed state. When the outer side of the push door 3 is in contact with the inner wall of the movable groove 21, release the pull rod 2. Under the elastic force of the second spring 26, the locking block 28 is locked into the slot 29, thus closing the push door 3. The tight fit between the push door 3 and the flaw detection room 1 effectively prevents radiation leakage and protects the health of the operators.

[0044] In addition, the corrugated pipe is placed in the designated position, and motor 16 is started. The output end of motor 16 drives turntable 15 to rotate, which in turn drives multiple moving parts 19 to rotate. The moving parts 19 drive connecting block 17 to converge along the outside of slide rod 18 towards the center of fixed part 8. At this time, connecting block 17 drives clamping part 9 to move simultaneously. Multiple clamping parts 9 clamp and fix both ends of the corrugated pipe. Clamping the corrugated pipe can ensure its stability during the inspection process. At the same time, cylinder 12 is started. The output end of cylinder 12 drives detection tube 13 to move up and down to inspect one of the welding parts. The image is projected onto the film surface on the outside of projection plate 14. At this time, guide rail 6 drives slider 7 to slide. Guide rail 6 and slider 7 are existing technology products that are matched. This drives detection tube 13 and projection plate 14 to slide simultaneously to inspect other welding parts of the corrugated pipe, improving inspection efficiency.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. Radiographic testing room for weld inspection, comprising a testing room (1), characterized in that: The flaw detection room (1) is slidably connected to a push door (3) on its outer side. Multiple connecting rods (4) are rotatably connected to the outer side of the push door (3). The flaw detection room (1) has an external movable groove (21). The push door (3) has an internal groove (24) inside. A baffle (22) is slidably connected to the inner wall of the internal groove (24). A pull rod (2) is fixedly connected to one side of the baffle (22), and a limit rod (25) is fixedly connected to the other side of the baffle (22). The limiting rod (25) is fitted with a spring (23) on its outside. The inner wall of the inner groove (24) is provided with a control groove (27). The inner wall of the control groove (27) is fixedly connected with a spring (26). The other end of the spring (26) is fixedly connected with a locking block (28). The outer side of the locking block (28) is fixedly connected with a triangular block (30). The outer side of the flaw detection room (1) is provided with a locking groove (29). The interior of the flaw detection room (1) is equipped with a clamping assembly.

2. The radiographic examination room for weld inspection according to claim 1, characterized in that: The clamping assembly includes a support platform (5), the bottom of which is fixedly connected to the inner bottom wall of the flaw detection room (1). The top of the support platform (5) is fixedly connected to two fasteners (8). The inner wall of the fasteners (8) is fixedly connected to a motor (16). The inner wall of the fasteners (8) is rotatably connected to a turntable (15). The outside of the turntable (15) is rotatably connected to multiple moving parts (19). The outside of the turntable (15) is fixedly connected to multiple sliding rods (18). The outside of the sliding rods (18) is slidably connected to a connecting block (17). The outside of the connecting block (17) is fixedly connected to a clamping part (9). The outside of the fasteners (8) is provided with multiple mounting slots (10). The top of the support platform (5) is fixedly connected to two guide rails (6). The outside of the guide rails (6) is slidably connected to a slider (7).

3. The radiographic examination room for weld inspection according to claim 1, characterized in that: One end of the spring (23) is fixedly connected to the outside of the baffle (22), and the other end of the spring (23) is fixedly connected to the inner wall of the inner groove (24). The shape of the locking block (28) matches the locking groove (29), and the locking block (28) and the locking groove (29) are in a plug-in fit.

4. The radiographic examination room for weld inspection according to claim 1, characterized in that: A handle is fixedly connected to the outside of the push door (3), and the ends of the multiple connecting rods (4) away from the push door (3) are rotatably connected to the inner wall of the flaw detection room (1).

5. The radiographic examination room for weld inspection of claim 1, wherein: A sealing strip (31) is fixedly connected to the outside of the push door (3), and a sealing groove (20) is provided on the inner side wall of the movable groove (21).

6. The radiographic examination room for weld inspection according to claim 2, characterized in that: One of the sliders (7) has a projection plate (14) fixedly connected to its top, and the other slider (7) has a detection block (11) fixedly connected to its top. The top of the detection block (11) has a cylinder (12) fixedly connected to its top, and the output shaft of the cylinder (12) has a detection tube (13) fixedly connected to its top.

7. The radiographic examination room for weld inspection according to claim 2, characterized in that: The end of the movable part (19) away from the turntable (15) is rotatably connected to the outer side of the connecting block (17), and the movable part (19) is configured to be arc-shaped.

8. The radiographic examination room for weld inspection according to claim 2, characterized in that: The longitudinal section of the clamping member (9) is square, and the outside of the clamping member (9) is slidably connected to the inner wall of the mounting groove (10).