Vacuum welding flange sealing detection auxiliary structure

Abstract

The utility model relates to flange sealing detection technical field discloses a kind of vacuum welding flange sealing detection auxiliary structure, including base, the top of the base is rotatably connected with mounting plate, the inner wall of mounting plate is fixedly connected with outer air bag, the inner wall middle part of mounting plate is fixedly connected with inner air bag, the inner wall bottom of mounting plate is fixedly connected with induction paper, the outer wall right side of mounting plate is fixedly connected with air pump, the output of air pump is connected with the outer air bag with the inner air bag respectively, the inside of mounting plate is rotatably connected with hot air blower, the top of hot air blower is rotatably connected with rotating plate, the inside of rotating plate is rotatably connected with threaded rod. In the utility model, by rotating plate and putting flange into mounting plate, air pump inflation fixed sealing, after adjusting nozzle position, hot air blower is started.If flange has seam hot flow heating induction paper, according to color change position, it can know the air leakage place, can improve sealing effect and detect flange breakage.

Description

Technical Field

[0001] This utility model relates to the field of flange sealing detection technology, and in particular to an auxiliary structure for vacuum welding flange sealing detection. Background Technology

[0002] Vacuum-welded flanges are key components that connect pipes and equipment in a vacuum environment. Their structure features a high-precision sealing surface, which is finely machined to achieve excellent flatness and smoothness, ensuring a tight fit when connected to other parts to achieve a vacuum seal. To facilitate the detection of whether the welded flange is sealed, an auxiliary structure for testing the seal of vacuum-welded flanges is needed.

[0003] The vacuum welding flange sealing test auxiliary structure plays a crucial role in ensuring the sealing performance and reliability of the vacuum system. It can accurately and efficiently test and evaluate the sealing performance of vacuum welding flanges. By creating a vacuum environment that closely matches the actual working scenario and accurately monitoring subtle pressure changes, it can promptly and accurately detect potential sealing defects in the flange.

[0004] Currently available vacuum welding flange sealing detection auxiliary structures work by placing the flange inside the device and filling it with water. The system observes whether the water flows into the bottom through the gaps, causing the sensing paper at the bottom of the device to become damp, thus determining whether the flange is sealed. However, in actual use, this method can lead to excessive water overflow when the gaps are large, increasing the damp area and making it difficult to determine the location of the gaps through the sensing paper. Furthermore, insufficient sealing of the flange can cause leakage, reducing the detection effect and thus lowering the reliability of the device. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides an auxiliary structure for vacuum welding flange sealing detection, aiming to improve the problems of insufficient flange sealing performance and poor detection accuracy in the existing sealing detection auxiliary structures.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an auxiliary structure for vacuum welding flange sealing detection, comprising a base, a mounting plate rotatably connected to the top of the base, an outer airbag fixedly connected to the inner wall of the mounting plate, an inner airbag fixedly connected to the middle of the inner wall of the mounting plate, a sensing paper fixedly connected to the bottom of the inner wall of the mounting plate, an air pump fixedly connected to the right side of the outer wall of the mounting plate, the output end of the air pump being connected to the outer airbag and the inner airbag respectively, a hot air blower rotatably connected to the inner side of the mounting plate, a rotating plate rotatably connected to the top of the hot air blower, a threaded rod rotatably connected to the inner side of the rotating plate, a nozzle threadedly connected to the outer side of the threaded rod, a flexible hose connected to the outer side of the nozzle, the left side of the flexible hose being connected to the hot air blower, and a positioning mechanism provided at the bottom of the base for supporting and adjusting the device.

[0007] As a further description of the above technical solution: The positioning mechanism includes a U-shaped plate, which is fixedly connected to the bottom center of the base. Telescopic plates are rotatably connected to the left and right sides of the inner wall of the U-shaped plate. A hollow block is rotatably connected to the outer side of the telescopic plate. A base plate is rotatably connected to the bottom end of the hollow block. A U-shaped block is slidably connected to the outer side of the hollow block. The top of the U-shaped block is fixedly connected to the base.

[0008] As a further description of the above technical solution: A knob is rotatably connected to the outer side of the rotating plate, and the outer side of the knob passes through the rotating plate and is fixedly connected to the threaded rod.

[0009] As a further description of the above technical solution: A controller is fixedly connected to the front side of the base, and the controller is electrically connected to the air pump, the hot air blower and the telescopic plate respectively.

[0010] As a further description of the above technical solution: The base is fixedly connected to handles on all four sides of its outer wall, and protective sleeves are fixedly connected to the outer sides of each handle.

[0011] As a further description of the above technical solution: The outer wall of the U-shaped block is fixedly connected to the front and rear sides with brackets, and the top of the brackets is fixedly connected to the base.

[0012] As a further description of the above technical solution: The outer side of the base plate is fixedly connected to the front and rear sides of the positioning block, and positioning holes are opened on the outer side.

[0013] As a further description of the above technical solution: The hollow block has sliding rods fixedly connected to both the front and rear sides of its outer wall, and the sliding rods are slidably connected to the U-shaped block.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the flange is placed vertically on the mounting plate by rotating the rotating plate, the air pump is started to inflate and fix the airbag and seal it, the rotating plate is then rotated to be parallel, the nozzle position is adjusted by rotating the threaded rod and the hot air is started, and the hot air is sprayed out through the hose nozzle. If there is a gap in the flange, the heat flow passes through the gap and heats the sensing paper. The location of the leak can be determined by the color change. This can improve the sealing effect of the flange and accurately detect the damage to the flange, thereby improving the reliability of the device.

[0015] 2. In this utility model, the base plate supports and fixes the device. If the fixing point is uneven, the telescopic plate is activated to move the U-shaped plate. When the telescopic plate moves, it drives the hollow block to move along the U-shaped block, thereby adjusting the height of the device support. This allows the device to be stably supported and fixed on different planes, ensuring its adaptability and stability. It is convenient to fix the device on ground with different flatness, thereby improving the convenience of the device. Attached Figure Description

[0016] Figure 1 This is a perspective view of an auxiliary structure for testing the sealing of a vacuum welding flange proposed in this utility model; Figure 2 This is a front view of an auxiliary structure for detecting the seal of a vacuum welding flange proposed in this utility model; Figure 3 This is a top view of an auxiliary structure for detecting the seal of a vacuum welding flange proposed in this utility model; Figure 4 This is a partial structural exploded view of an auxiliary structure for vacuum welding flange sealing detection proposed in this utility model; Figure 5 This is a structural exploded view of the positioning mechanism of the vacuum welding flange sealing detection auxiliary structure proposed in this utility model.

[0017] Legend: 1. Base; 2. Positioning mechanism; 201. U-shaped plate; 202. Telescopic plate; 203. Hollow block; 204. Base plate; 205. U-shaped block; 3. Mounting plate; 4. Air pump; 5. External airbag; 6. Internal airbag; 7. Sensor paper; 8. Hot air blower; 9. Rotating plate; 10. Threaded rod; 11. Nozzle; 12. Hose; 13. Knob; 14. Handle; 15. Protective sleeve; 16. Positioning block; 17. Positioning hole; 18. Slide rod; 19. Bracket; 20. Controller. Detailed Implementation

[0018] 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.

[0019] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of an auxiliary structure for vacuum welding flange sealing detection, comprising a base 1, a mounting plate 3 rotatably connected to the top of the base 1, an outer airbag 5 fixedly connected to the inner wall of the mounting plate 3, an inner airbag 6 fixedly connected to the middle of the inner wall of the mounting plate 3, and a sensing paper 7 fixedly connected to the bottom of the inner wall of the mounting plate 3. The sensing paper 7 changes color when heated. An air pump 4 is fixedly connected to the right side of the outer wall of the mounting plate 3. The output end of the air pump 4 is connected to both the outer airbag 5 and the inner airbag 6. When the air pump is started... 4 can inflate the outer airbag 5 and the inner airbag 6. The inner side of the mounting plate 3 is rotatably connected to the hot air blower 8. The top of the hot air blower 8 is rotatably connected to the rotating plate 9. The inner side of the rotating plate 9 is rotatably connected to the threaded rod 10. The outer side of the threaded rod 10 is threadedly connected to the nozzle 11. Rotating the threaded rod 10 can adjust the position of the nozzle 11. The outer side of the nozzle 11 is connected to the hose 12. The left side of the hose 12 is connected to the hot air blower 8. The bottom of the base 1 is provided with a positioning mechanism 2, which is used to support and adjust the device. Reference Figure 1 , Figure 2 and Figure 5 The positioning mechanism 2 includes a U-shaped plate 201, which is fixedly connected to the bottom center of the base 1. Telescopic plates 202 are rotatably connected to the left and right sides of the inner wall of the U-shaped plate 201. Activating the telescopic plates 202 can move the U-shaped plate 201. A hollow block 203 is rotatably connected to the outer side of the telescopic plate 202. As the telescopic plate 202 moves, it can drive the hollow block 203 to move along the U-shaped block 205. A base plate 204 is rotatably connected to the bottom end of the hollow block 203. By rotating the base plate 204, the device can be supported and fixed. The U-shaped block 205 is slidably connected to the outer side of the hollow block 203. The top of the U-shaped block 205 is fixedly connected to the base 1. Reference Figure 1 , Figure 3 and Figure 4 A knob 13 is rotatably connected to the outer side of the rotating plate 9. The outer side of the knob 13 passes through the rotating plate 9 and is fixedly connected to the threaded rod 10. The threaded rod 10 can be easily rotated by operating the knob 13. A controller 20 is fixedly connected to the front side of the base 1. The controller 20 is electrically connected to the air pump 4, the hot air blower 8 and the telescopic plate 202 respectively. The controller 20 can control the starting and running power of the air pump 4, the hot air blower 8 and the telescopic plate 202 respectively. Handles 14 are fixedly connected to all four sides of the outer wall of the base 1. Protective sleeves 15 are fixedly connected to the outer side of the multiple handles 14. The handles 14 make it easy to hold and carry the device, and the protective sleeves 15 can improve the comfort of holding. Reference Figure 1 , Figure 3 and Figure 5The U-shaped block 205 has brackets 19 fixedly connected to its front and rear sides. The top of the brackets 19 is fixedly connected to the base 1. The brackets 19 can improve the firmness of the fixation between the U-shaped block 205 and the base 1. The base plate 204 has positioning blocks 16 fixedly connected to its front and rear sides. The outer side of the positioning blocks 16 has positioning holes 17. By installing threaded parts in the positioning holes 17 on the positioning blocks 16, it is easy to install and fix the device. The hollow block 203 has sliding rods 18 fixedly connected to its front and rear sides. The sliding rods 18 are slidably connected to the U-shaped block 205. The sliding rods 18 can improve the stability of the U-shaped block 205 when sliding. Working principle: Before using the device, first rotate the rotating plate 9 to a vertical position so that the flange can be placed into the mounting plate 3. At this time, start the air pump 4 to inflate the outer air bag 5 and the inner air bag 6 to fix the flange and improve the sealing performance through inflation. Then rotate the rotating plate 9 to a parallel position and adjust the position of the nozzle 11 through the threaded connection by rotating the threaded rod 10. Start the hot air blower 8. At this time, hot air waves can be discharged through the nozzle 11 through the hose 12. If there is a gap in the flange, the hot air will heat the sensing paper 7 through the gap. The specific location of the leak can be determined by the color change of the sensing paper 7. Furthermore, the device is fixed by the support of the base plate 204. When the fixed position of the device is uneven, the U-shaped plate 201 can be moved by activating the telescopic plate 202. At this time, as the telescopic plate 202 moves, the hollow block 203 moves along the U-shaped block 205, adjusting the height of the device support, thereby controlling the device to support and fix different planes.

[0020] 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. An auxiliary structure for testing the seal of a vacuum welded flange, comprising a base (1), characterized in that: The top of the base (1) is rotatably connected to a mounting plate (3). An outer airbag (5) is fixedly connected to the inner wall of the mounting plate (3). An inner airbag (6) is fixedly connected to the middle of the inner wall of the mounting plate (3). A sensor paper (7) is fixedly connected to the bottom of the inner wall of the mounting plate (3). An air pump (4) is fixedly connected to the right side of the outer wall of the mounting plate (3). The output end of the air pump (4) is connected to the outer airbag (5) and the inner airbag (6) respectively. The inner side of the mounting plate (3) is rotatably connected to a mounting plate (1). A hot air blower (8) is rotatably connected to the top of the hot air blower (8). A rotating plate (9) is rotatably connected to the inner side of the rotating plate (9). A threaded rod (10) is rotatably connected to the outer side of the threaded rod (10). A nozzle (11) is threadedly connected to the outer side of the nozzle (11). A hose (12) is connected to the outer side of the hose (12). The left side of the hose (12) is connected to the hot air blower (8). A positioning mechanism (2) is provided at the bottom of the base (1). The positioning mechanism (2) is used to support and adjust the device.

2. The auxiliary structure for testing the sealing of a vacuum welded flange according to claim 1, characterized in that: The positioning mechanism (2) includes a U-shaped plate (201), which is fixedly connected to the middle of the bottom end of the base (1). The inner wall of the U-shaped plate (201) is rotatably connected to the left and right sides of the left and right sides of the inner wall. A hollow block (203) is rotatably connected to the outer side of the telescopic plate (202). A base plate (204) is rotatably connected to the bottom end of the hollow block (203). A U-shaped block (205) is slidably connected to the outer side of the hollow block (203). The top of the U-shaped block (205) is fixedly connected to the base (1).

3. The auxiliary structure for testing the sealing of a vacuum welded flange according to claim 1, characterized in that: A knob (13) is rotatably connected to the outside of the rotating plate (9). The outside of the knob (13) passes through the rotating plate (9) and is fixedly connected to the threaded rod (10).

4. The auxiliary structure for vacuum welding flange sealing detection according to claim 1, characterized in that: A controller (20) is fixedly connected to the front side of the base (1), and the controller (20) is electrically connected to the air pump (4), the hot air blower (8) and the telescopic plate (202).

5. The auxiliary structure for testing the sealing of a vacuum welded flange according to claim 1, characterized in that: The base (1) is fixedly connected to handles (14) on all four sides of its outer wall, and the outer sides of the multiple handles (14) are fixedly connected to protective sleeves (15).

6. The auxiliary structure for testing the sealing of a vacuum welded flange according to claim 2, characterized in that: The outer wall of the U-shaped block (205) is fixedly connected to the front and rear sides of the bracket (19), and the top of the bracket (19) is fixedly connected to the base (1).

7. The auxiliary structure for testing the sealing of a vacuum welded flange according to claim 2, characterized in that: The outer walls of the base plate (204) are fixedly connected to the front and rear sides of the positioning blocks (16), and positioning holes (17) are opened on the outer side.

8. The auxiliary structure for vacuum welding flange sealing detection according to claim 2, characterized in that: The hollow block (203) has a sliding rod (18) fixedly connected to the front and rear sides of its outer wall, and the sliding rod (18) is slidably connected to the U-shaped block (205).

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