Vacuum-pumping inspection equipment for ship welding seam

Abstract

The invention discloses a ship weld joint vacuum-pumping inspection device which comprises a vacuum box which is arranged in a rectangular shape, one side of the vacuum box is open, and a vacuum-pumping pipe and a pressure gauge are arranged on the vacuum box; the rubber ring is annularly arranged at the opening end of the vacuum box, the rubber ring comprises a pair of long edges and a pair of short edges, and the connecting positions of the long edges and the short edges are fixed to the four corners of the vacuum box; the sealing plates are connected to the two ends of the vacuum box in a sliding mode, the ends of the sealing plates are arranged in a right-angle shape, and the sealing plates are used for opening the short edges after sliding out; and the locking mechanism is used for fixing the sealing plate. By arranging the telescopic sealing plate, the sealing plate can be retracted into the vacuum box, the vacuum box can be buckled on the periphery of a plane welding seam, the sealing plate can stretch out, the short edge on the rubber ring is expanded, the vacuum box can be buckled on the periphery of a right-angle welding seam, and therefore detection of welding seams in two different states is met; the detection process is more convenient, and the detection convenience is improved.

Description

Technical Field

[0001] The invention relates to the field of ship manufacturing, and in particular to a ship weld vacuum inspection device. Background Art

[0002] Weld vacuum testing, also known as vacuum chamber testing or helium mass spectrometry leak detection, is a non-destructive testing method used to check the tightness and integrity of welded joints. This method is particularly suitable for testing welds that cannot be effectively inspected by other conventional methods (such as radiographic testing, ultrasonic testing, etc.).

[0003] In the production process of ships, vacuum detection is usually used to detect the position of welds. Currently, welds are usually divided into two types, one is a flat weld and the other is a right-angle weld. Therefore, two sets of vacuum boxes of different shapes are required for detection, which makes the detection process very inconvenient and affects the convenience of detection, and needs to be improved. Summary of the invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a ship weld vacuum inspection device, which has the effect of facilitating inspection.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A ship weld vacuum inspection device, comprising: The vacuum box is rectangular and has an opening on one side. A vacuum tube and a pressure gauge are provided on the vacuum box. A rubber ring is arranged in a ring shape at the opening end of the vacuum box, the rubber ring comprises a pair of long sides and a pair of short sides, and the connection positions of the long sides and the short sides are fixed at the four corners of the vacuum box; A pair of sealing plates, slidably connected to the two ends of the vacuum box, the end positions of the sealing plates are arranged at right angles, and are used to slide out and open the short sides; A locking mechanism is used to fix the sealing plate.

[0006] In a preferred example, the present invention can be further configured as follows: the locking mechanism includes a slider, a support seat, a screw and a handle, the slider is arranged on the outer wall of the sealing plate, the vacuum box is provided with a sliding groove for the slider to slide, the support seat is arranged on the outer wall of the vacuum box, the screw is threadedly connected to the support seat and is rotatably connected to the slider, and the handle is arranged on the screw.

[0007] In a preferred example, the present invention may be further configured as follows: a sealing ring is provided in the vacuum box to abut against the outer wall of the sealing plate.

[0008] In a preferred example, the present invention can be further configured as follows: an annular folding groove is provided on the upper inner wall and the upper outer wall of the rubber ring.

[0009] In a preferred example, the present invention can be further configured as follows: the rubber ring is provided with a sleeve ring mounted on the vacuum box, the four corners of the sleeve ring are provided with steel corner guards, and the vacuum box is provided with a fixing mechanism for fixing the steel corner guards.

[0010] In a preferred example, the present invention can be further configured as follows: the fixing mechanism includes a fixing seat and a locking hook, the fixing seat is arranged on the inner wall and the outer wall of the vacuum box, the locking hook is rotatably connected to the fixing seat, the steel corner guard is provided with a fixing hole for the fixing hook to hook tightly, and a handle is extended from the end of the fixing hook.

[0011] In a preferred example, the present invention can be further configured as follows: a screw for tightening against the outer wall of the vacuum box is threadedly connected to the handle.

[0012] In a preferred example, the present invention can be further configured as follows: a slide rail is horizontally arranged on the top wall of the vacuum box, a lighting lamp is slidably connected to the slide rail, a handle is horizontally slidably connected to the outer wall of the vacuum box, and a magnet for adsorbing the lighting lamp is arranged on the handle.

[0013] In summary, the present invention has the following beneficial effects: 1. By setting a telescopic sealing plate, the sealing plate can be retracted into the vacuum box so that the vacuum box can be buckled around the plane weld. The sealing plate can also be extended and the short side of the rubber ring can be stretched open so that the vacuum box can be buckled around the right-angle weld, thereby meeting the detection of welds in two different states, making the detection process more convenient and improving the convenience of detection; 2. By setting a detachable and easy-to-remove rubber ring, the loose or damaged rubber ring can be easily replaced to meet the accuracy of the inspection; 3. By setting up a sliding-connected lighting lamp, the weld position can be illuminated during inspection, making it easier to judge whether the weld is qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment; Figure 2 is a schematic diagram of the connection relationship of the embodiment; Figure 3 Schematic diagram of the internal structure of the vacuum box of the embodiment.

[0015] Figure numerals: 1. Vacuum box; 11. Vacuum tube; 12. Pressure gauge; 13. Slide rail; 14. Light; 15. Handle; 16. Magnet; 17. Sealing ring; 18. Slide groove; 2. Rubber ring; 21. Folding groove; 22. Long side; 23. Short side; 3. Sealing plate; 4. Locking mechanism; 41. Slider; 42. Support seat; 43. Screw; 44. Handle; 5. Ring; 51. Steel corner guard; 52. Fixing hole; 6. Fixing mechanism; 61. Fixing seat; 62. Locking hook; 63. Handle; 64. Screw. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0017] like Figure 1 , Figure 2 As shown, a ship weld vacuum inspection device includes a vacuum box 1, a rubber ring 2, a pair of sealing plates 3 and a locking mechanism 4.

[0018] like Figure 1 , Figure 2 , Figure 3 As shown, the vacuum box 1 is rectangular and has an open side. The vacuum box 1 is provided with a vacuum tube 11 and a pressure gauge 12. A slide rail 13 is horizontally provided on the top wall of the vacuum box 1, and a lighting lamp 14 is slidably connected to the slide rail 13. A handle 15 is horizontally slidably connected to the outer wall of the vacuum box 1, and a magnet 16 for adsorbing the lighting lamp 14 is provided on the handle 15.

[0019] like Figure 1 , Figure 2 As shown, the rubber ring 2 is arranged in an annular shape at the opening end of the vacuum box 1, and the upper inner wall and the upper outer wall of the rubber ring 2 are both provided with an annular folding groove 21. The rubber ring 2 includes a pair of long sides 22 and a pair of short sides 23, and the connection positions of the long sides 22 and the short sides 23 are fixed at the four corners of the vacuum box 1.

[0020] like Figure 1 , Figure 2 As shown, a pair of sealing plates 3 are slidably connected to the two ends of the vacuum box 1, and the end positions of the sealing plates 3 are arranged at right angles and are used to slide out and open the short sides 23. A sealing ring 17 is arranged in the vacuum box 1 to abut against the outer wall of the sealing plate 3 to increase the sealing between the two.

[0021] like Figure 2 , Figure 3As shown, the locking mechanism 4 is used to fix the sealing plate 3, and the locking mechanism 4 includes a slider 41, a support seat 42, a screw 43 and a handle 44. The slider 41 is arranged on the outer wall of the sealing plate 3, and the vacuum box 1 is provided with a slide groove 18 for the slider 41 to slide. The support seat 42 is arranged on the outer wall of the vacuum box 1, the screw 43 is threadedly connected to the support seat 42, and is rotatably connected to the slider 41, and the handle 44 is arranged on the screw 43.

[0022] When it is necessary to inspect the flat weld, first apply soapy water to the weld, then buckle the vacuum box 1 on the inspection surface, and make the vacuum box 1 surround the weld, while the rubber ring 2 contacts the inspection surface. Then connect the negative pressure pump to the vacuum pipe 11, and vacuumize the inside of the vacuum box 1.

[0023] During the vacuuming process of the vacuum box 1, the vacuum box 1 applies pressure to the detection surface and presses the rubber ring 2 to deform, so that the vacuum box 1 is firmly adsorbed on the detection surface. Then the handle 15 is controlled to slide, and the illuminating lamp 14 is adsorbed by the magnet 16, and the illuminating lamp 14 is controlled to slide on the slide rail 13, and the illuminating lamp 14 is used to illuminate the weld to observe whether there are bubbles at the weld position, and at the same time observe whether the pressure gauge 12 changes to determine whether the weld is qualified.

[0024] When the right angle needs to be detected, the control handle 44 drives the screw 43 to rotate, the screw 43 pushes the slider 41 to slide, and the slider 41 drives the sealing plate 3 to slide outward. At this time, the sealing plate 3 opens the short side 23 of the rubber ring 2 and makes the short side 23 wrap the right angle side of the sealing plate 3.

[0025] Then, the vacuum box 1 is buckled on the detection surface at a right angle, and the vacuum box 1 surrounds the weld, while the rubber ring 2 contacts the detection surfaces perpendicular to each other. Then, the negative pressure pump is connected to the vacuum pipe 11, and the interior of the vacuum box 1 is vacuumed.

[0026] During the vacuuming process of the vacuum box 1, the vacuum box 1 applies pressure to the detection surface and deforms the rubber ring 2, so that the vacuum box 1 is firmly adsorbed on the detection surface. At the same time, under the action of the folding groove 21 on the rubber ring 2, the rubber ring 2 can be deformed and firmly press the detection surface.

[0027] Then, the handle 15 can be controlled to slide, and the magnet 16 can be used to absorb the lighting lamp 14, and the lighting lamp 14 can be controlled to slide on the slide rail 13. The lighting lamp 14 can be used to illuminate the weld to observe whether there are bubbles at the weld position and whether the pressure gauge 12 changes to determine whether the weld is qualified.

[0028] Therefore, by providing a telescopic sealing plate 3, the sealing plate 3 can be retracted into the vacuum box 1, so that the vacuum box 1 can be buckled around the plane weld. The sealing plate 3 can also be extended and the short side 23 on the rubber ring 2 can be opened, so that the vacuum box 1 can be buckled around the right-angle weld, thereby satisfying the detection of welds in two different states, making the detection process more convenient and improving the convenience of detection.

[0029] like Figure 2 , Figure 3 As shown, the rubber ring 2 is provided with a sleeve ring 5 sleeved on the vacuum box 1 , the four corners of the sleeve ring 5 are provided with steel corner guards 51 , and the vacuum box 1 is provided with a fixing mechanism 6 for fixing the steel corner guards 51 .

[0030] like Figure 2 , Figure 3 As shown, the fixing mechanism 6 includes a fixing seat 61 and a locking hook 62. The fixing seat 61 is arranged on the inner wall and the outer wall of the vacuum box 1. The locking hook 62 is rotatably connected to the fixing seat 61. The steel corner guard 51 is provided with a fixing hole 52 for the fixing hook to hook tightly.

[0031] like Figure 2 , Figure 3 As shown, a handle 63 is extended from the end of the fixing hook, and a screw 64 for pressing against the outer wall of the vacuum box 1 is threadedly connected to the handle 63 .

[0032] When the rubber ring 2 needs to be installed, the collar 5 is placed on the vacuum box 1, and then the locking hook 62 is pressed to flip, so that the collar 5 moves to the bottom of the locking hook 62, and then the locking hook 62 is controlled to flip in the opposite direction, so that the locking hook 62 is hooked tightly to the locking hole, so as to fix the collar 5 and the rubber ring 2. Finally, the screw 64 is tightened so that the screw 64 is pressed against the outer wall of the vacuum box 1, so as to fix the locking hook 62 and increase the stability of the rubber ring 2.

[0033] The disassembly process of the rubber ring 2 is the opposite, so it will not be described in detail. Therefore, by providing a detachable and conveniently detachable rubber ring 2, it is possible to realize a separate and convenient replacement of the rubber ring 2 after it becomes soft or damaged, prevent air leakage, and meet the accuracy of the inspection process.

[0034] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A ship weld vacuum inspection equipment, characterized in that: include: The vacuum box (1) is rectangular in shape and has an opening on one side. The vacuum box (1) is provided with a vacuum tube (11) and a pressure gauge (12); A rubber ring (2) is arranged in a ring shape at the open end of the vacuum box (1), the rubber ring (2) comprising a pair of long sides (22) and a pair of short sides (23), and the connection positions of the long sides (22) and the short sides (23) are fixed at the four corners of the vacuum box (1); A pair of sealing plates (3) are slidably connected to the two ends of the vacuum box (1), the end portions of the sealing plates (3) are arranged at right angles and are used to slide out and open the short sides (23); A locking mechanism (4) is used to fix the sealing plate (3).

2. A ship weld vacuum inspection device according to claim 1, characterized in that: The locking mechanism (4) comprises a slider (41), a support seat (42), a screw (43) and a handle (44); the slider (41) is arranged on the outer wall of the sealing plate (3); a slide groove (18) for the slider (41) to slide is arranged on the vacuum box (1); the support seat (42) is arranged on the outer wall of the vacuum box (1); the screw (43) is threadedly connected to the support seat (42) and is rotatably connected to the slider (41); and the handle (44) is arranged on the screw (43).

3. A ship weld vacuum inspection device according to claim 1, characterized in that: A sealing ring (17) is arranged in the vacuum box (1) and contacts the outer wall of the sealing plate (3).

4. A ship weld vacuum inspection device according to claim 1, characterized in that: The upper inner wall and the upper outer wall of the rubber ring (2) are both provided with an annular folding groove (21).

5. A ship weld vacuum inspection device according to claim 1, characterized in that: The rubber ring (2) is provided with a sleeve ring (5) sleeved on the vacuum box (1), the sleeve ring (5) is provided with steel corner guards (51) at four corners, and the vacuum box (1) is provided with a fixing mechanism (6) for fixing the steel corner guards (51).

6. A ship weld vacuum inspection device according to claim 5, characterized in that: The fixing mechanism (6) comprises a fixing seat (61) and a locking hook (62); the fixing seat (61) is arranged on the inner wall and the outer wall of the vacuum box (1); the locking hook (62) is rotatably connected to the fixing seat (61); the steel corner guard (51) is provided with a fixing hole (52) for the fixing hook to hook tightly; and a handle (63) is extended from the end of the fixing hook.

7. A ship weld vacuum inspection device according to claim 6, characterized in that: The handle (63) is threadedly connected with a screw (64) for tightening against the outer wall of the vacuum box (1).

8. A ship weld vacuum inspection device according to claim 1, characterized in that: A slide rail (13) is horizontally arranged on the top wall of the vacuum box (1), and a lighting lamp (14) is slidably connected to the slide rail (13); a handle (15) is horizontally slidably connected to the outer wall of the vacuum box (1), and a magnet (16) for adsorbing the lighting lamp (14) is arranged on the handle (15).

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