Foldable variable-size hollowed-out spraying can spraying baffle plate
By designing a foldable, variable-size spray can shielding plate, the problem of spray material contamination in penetrant nondestructive testing is solved, achieving efficient shielding of complex structures and simple operation, and is suitable for various testing environments.
Patent Information
- Application Number
- CN202422505069.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-10-16
AI Technical Summary
In existing technologies, during penetrant nondestructive testing, the sprayed material is prone to contaminating non-test areas, especially when testing complex aircraft structures, leading to cleaning difficulties. Furthermore, existing shielding materials are cumbersome to operate, inefficient, and have poor repeatability.
A foldable, variable-size spray masking plate for spraying cans has been designed, comprising multiple graphic cutout masks connected by hinges. It can be folded into different shapes and sizes according to inspection requirements, and is suitable for flat and curved workpieces. It is easy to fix and is made of PP plastic sheet, which is easy to clean.
It effectively reduces the spraying area, protects non-test areas from contamination, is simple to operate, highly adaptable, and suitable for penetrant non-destructive testing of different structures, improving testing efficiency and ease of cleaning.
Smart Images
Figure CN223505458U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of penetrant nondestructive testing technology, and specifically relates to a foldable, variable-size, perforated spray can coating shield. Background Technology
[0002] Penetrant testing, with its advantages of high sensitivity, intuitive defect display, and simple and rapid operation, is widely used in aerospace, weaponry, transportation, and special equipment inspection fields. When performing on-site operations or localized inspection of large components, a portable pressure spray can (1) is generally used to spray penetrant testing material. Because it takes a certain amount of time for the penetrant testing material to form a uniform mist after being sprayed from the nozzle of the pressure spray can (1), the nozzle must maintain a certain distance from the workpiece being inspected. This results in a generally large sprayed area; in addition to the inspection area (2), a large area of the non-inspection area (3) is also inevitably sprayed, causing contamination (see...). Figure 1 This contamination is particularly severe when performing penetrant testing on complex structures such as aircraft, and it poses significant challenges to cleaning the workpiece.
[0003] The most common method for preventing contamination is to cover the workpiece with a thin film or newspaper. When using a spray can, the film or newspaper is cut to cover the non-inspection area, thus providing a shielding effect. However, both the film and newspaper are disposable items, making them difficult to install stably on the workpiece. They also require on-site cutting based on the inspection area or pre-cut to a fixed size, resulting in cumbersome operation, low efficiency, and poor repeatability. Utility Model Content
[0004] The purpose of this application is to provide a foldable, variable-size, perforated spray can masking plate to solve or mitigate at least one of the problems in the prior art.
[0005] The technical solution of this application is: a foldable, variable-size, perforated spray can coating masking plate, comprising:
[0006] A first-graphic cutout cover plate having a first-graphic cutout area;
[0007] A second graphic notch cover with a second graphic notch; and
[0008] A third-graphic cutout cover plate with a third-graphic cutout area;
[0009] The two second-shaped notch cover plates are symmetrically placed at their notches and connected by hinges. The first-shaped hollow cover plate is connected to one of the second-shaped notch cover plates by a hinge, and the third-shaped hollow cover plate is connected to the other second-shaped notch cover plate by a hinge.
[0010] In optional embodiments of this application, the first graphic in the hollowed-out area, the second graphic at the notch, and the third graphic in the hollowed-out area of the first graphic hollowed-out cover plate, the second graphic at the notch, and the third graphic in the hollowed-out area are different graphics, or the same graphics but different sizes or specifications.
[0011] In an optional embodiment of this application, the first graphic is a circle, the third graphic is a rectangle, and the second graphic is a rectangle with a different size and specifications than the third graphic.
[0012] In an optional embodiment of this application, the first graphic cutout mask is suitable for penetrant testing of defects on the edge of nail holes and inside holes, the third graphic cutout mask is suitable for penetrant testing of defects on planar workpieces, and after the two second graphic notch masks are folded at a predetermined angle by hinges, the notch forms a first combined graphic cutout area suitable for penetrant testing of defects on curved workpieces.
[0013] In an optional embodiment of this application, after the first graphic cutout cover or the third graphic cutout cover and the second graphic notch cover are folded, the notch of a single second graphic notch cover forms a second combined graphic cutout area.
[0014] The hollow areas of the first and third graphic hollow cover plates overlap after being folded, thus forming the third combined graphic hollow area.
[0015] The first graphic cutout cover, the second graphic notched cover, and the third graphic cutout cover are folded to form a cover without cutouts.
[0016] In an optional embodiment of this application, the first graphic cutout cover, the third graphic cutout cover, and the second graphic notch cover have the same width in the folding direction.
[0017] In an optional embodiment of this application, the first graphic cutout cover, the second graphic notch cover, and the third graphic cutout cover are made of plastic sheet.
[0018] This application can simultaneously cover the surface of both planar and curved workpieces. Its foldable shielding plates can create multiple sizes or shapes of cutout areas to match penetrant nondestructive testing of different structures. It reduces the spraying area when using pressure spray cans during testing, protects non-test areas of the workpiece from contamination, and is highly versatile. The shielding plates can be threaded with ropes and then tied to the workpiece for easy fixation and simple operation. Attached Figure Description
[0019] To more clearly illustrate the technical solutions provided in this application, the accompanying drawings will be briefly described below. Obviously, the drawings described below are merely some embodiments of this application.
[0020] Figure 1 This is a schematic diagram of the spraying area using a pressure spray can in the existing technology.
[0021] Figure 2 This is a schematic diagram of the spray can coating shielding plate of this application.
[0022] Figure 3 This is a schematic diagram of the spray can coating shielding plate of this application applied to a curved workpiece.
[0023] Figure 4 This is a schematic diagram of the structure after the third graphic hollow cover plate and the second graphic notched cover plate are folded and overlapped in this application.
[0024] Figure 5 This is a schematic diagram of the structure after the first and third graphic hollowed-out cover plates in this application are folded and overlapped.
[0025] Figure 6 This is a schematic diagram of the structure of each shield in this application after it is fully folded.
[0026] Figure label:
[0027] 1-Pressure nozzle
[0028] 2-Detection area
[0029] 3-Non-detection area
[0030] 10-Spray nozzle shielding
[0031] 11-First graphic cutout cover, 111-Circle
[0032] 12-Second graphic notch cover, 121-Notch
[0033] 13-Second graphic cutout cover, 131-Rectangle
[0034] 14-Hinge
[0035] 15-First combined graphic cutout area
[0036] 16-Second combination graphic cutout area
[0037] 17-Third combination graphic cutout area Detailed Implementation
[0038] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings.
[0039] To address the problems existing in the background art, this application provides a foldable, variable-size, hollowed-out spray can spray masking plate 10.
[0040] like Figures 1 to 6 As shown, the spray can coating shield 10 includes a first graphic cutout shield 11, a second graphic notch shield 12, a third graphic cutout shield 13, and a hinge 14. The first graphic cutout shield 11 and the third graphic cutout shield 13 are respectively connected to the second graphic notch shield 12 through the hinge 14. There are two second graphic notch shields 12, each with a notch 121. The two second graphic notch shields 12 are symmetrically placed at the notches 121 and connected by the hinge 14.
[0041] In this application, the first graphic in the hollowed-out area, the second graphic at the notch 121, and the third graphic in the hollowed-out area of the first graphic hollowed-out cover plate 11, the second graphic notch cover plate 12, and the third graphic in the hollowed-out area of the third graphic hollowed-out cover plate 13 can be different graphics, or they can be the same graphic but different in size or specification. For example, in this embodiment of the application, the first graphic in the hollowed-out area of the first graphic hollowed-out cover plate 11 is a circle 111, and the third graphic in the hollowed-out area of the third graphic hollowed-out cover plate 13 is a rectangle 131, which are different graphics; at the same time, the second graphic at the notch 121 in the second graphic notch cover plate 12 is a rectangle, and the notch after splicing the two second graphic notch cover plates 12 is still a rectangle, but it has the same shape as the hollowed-out rectangle 131 in the third graphic hollowed-out cover plate 13 but different in size and specification.
[0042] The spray can spray mask 10 of this application can form a variety of different sizes or shapes of cutout areas by folding four masking plates with different cutout patterns or sizes to adapt to different spraying conditions, or it can be completely folded into a cutout-free plate for easy carrying.
[0043] For example, in this embodiment of the application, the first graphic cutout mask 11 is suitable for penetrant testing of defects on the edge of nail holes and inside holes, and the third graphic cutout mask 13 is suitable for penetrant testing of defects on planar workpieces. After two second graphic notched mask 12 are spliced and folded at a certain angle, the notch can form a first combined graphic cutout area 15 (e.g., Figure 3 As shown, the first combined graphic cutout area 15 is suitable for penetrant testing of defects on curved workpieces. It should be noted that when the area to be tested is large, two second graphic notched masking plates 12 can also be used for shielding.
[0044] Based on this, after the first graphic cutout cover 11 or the third graphic cutout cover 13 and the second graphic notch cover 12 are folded, a second combined graphic cutout area 16 can be formed (e.g., Figure 4As shown), in this embodiment of the application, the second combined graphic cutout area 16 is the graphic area of a single notch 121. The cutout areas of the first graphic cutout cover 11 and the third graphic cutout cover 13 can partially overlap after folding, and after the first graphic cutout cover 11 and the third graphic cutout cover 13 are folded, a third combined graphic cutout area 17 can be formed (as shown). Figure 5 (As shown). For example, in this embodiment of the application, the third combined graphic cutout area 17 is the intersection of the circle 111 and the rectangle 131. After being fully folded, it forms a non-cutout baffle (such as...). Figure 6 (As shown).
[0045] In order to achieve the folding of the first graphic hollow cover 11 or the third graphic hollow cover 12 with the second graphic notch cover 13, the widths of the first graphic hollow cover 11, the third graphic hollow cover 12 and the second graphic notch cover 13 are the same in the folding direction.
[0046] When fixation is required, the first graphic hollow cover plate 11 and the third graphic hollow cover plate 13 can be threaded with rope and tied to the workpiece to be measured to achieve fixation.
[0047] In the preferred embodiment of this application, the first graphic cutout cover 11, the second graphic notch cover 12, and the third graphic cutout cover 13 are made of PP plastic sheet, which will not be dissolved by cleaning agent and can be repeatedly cleaned.
[0048] This application can simultaneously cover the surface of both planar and curved workpieces. Its foldable shielding plates can create multiple sizes or shapes of cutout areas to match penetrant nondestructive testing of different structures. It reduces the spraying area when using pressure spray cans during testing, protects non-test areas of the workpiece from contamination, and is highly versatile. The shielding plates can be threaded with ropes and then tied to the workpiece for easy fixation and simple operation.
[0049] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A foldable, variable-size, perforated spray can coating mask, characterized in that, include: A first-graphic cutout cover plate having a first-graphic cutout area; Second graphic notch cover with a second graphic notch; as well as A third-graphic cutout cover plate with a third-graphic cutout area; The two second-shaped notch cover plates are symmetrically placed at their notches and connected by hinges. The first-shaped hollow cover plate is connected to one of the second-shaped notch cover plates by a hinge, and the third-shaped hollow cover plate is connected to the other second-shaped notch cover plate by a hinge.
2. The foldable, variable-size, perforated spray can coating shielding plate as described in claim 1, characterized in that, The first graphic in the hollow area, the second graphic in the notch, and the third graphic in the hollow area of the first graphic hollow cover plate, the second graphic in the notch, and the third graphic in the hollow area are different graphics, or they are the same graphics but different sizes or specifications.
3. The foldable, variable-size, perforated spray can coating shielding plate as described in claim 2, characterized in that, The first shape is a circle, the third shape is a rectangle, and the second shape is a rectangle but has a different size and specification from the rectangle in the third shape.
4. The foldable, variable-size, perforated spray can coating shielding plate as described in any one of claims 1 to 3, characterized in that, The first graphic cutout cover is suitable for penetrant testing of defects on the edge of nail holes and inside holes. The third graphic cutout cover is suitable for penetrant testing of defects on planar workpieces. After the two second graphic notch cover plates are folded at a predetermined angle by hinges, the notch forms a first combined graphic cutout area suitable for penetrant testing of defects on curved workpieces.
5. The foldable, variable-size, perforated spray can coating shielding plate as described in claim 4, characterized in that, After the first or third graphic cutout cover plate and the second graphic notch cover plate are folded together, the notch of the single second graphic notch cover plate forms the second combined graphic cutout area. The hollow areas of the first and third graphic hollow cover plates overlap after being folded, thus forming the third combined graphic hollow area. The first graphic cutout cover, the second graphic notched cover, and the third graphic cutout cover are folded to form a cover without cutouts.
6. The foldable, variable-size, perforated spray can coating shielding plate as described in claim 5, characterized in that, The first and third graphic cutout covers have the same width in the folding direction as the second graphic notch cover.
7. The foldable, variable-size, perforated spray can coating shielding plate as described in claim 1, characterized in that, The first graphic cutout cover, the second graphic notch cover, and the third graphic cutout cover are all made of plastic sheet.