Side panel painting masking tools for rail vehicles
By designing a masking tool for painting the side roof of rail vehicles, and utilizing the cooperation of a sliding masking plate and suction cup assembly with a protective cover, the problem of low paint touch-up efficiency caused by large-area tape masking was solved, and efficient painting operations were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN CNR RAILWAY VEHICLE CO LTD
- Filing Date
- 2025-09-16
- Publication Date
- 2026-08-04
AI Technical Summary
During the process of repainting the side roof of rail vehicles, the existing technology requires covering a large area of non-painted areas with tape, which results in long preparation time before repainting and time-consuming tape removal, thus reducing maintenance efficiency.
Design a masking tool for painting the side roof of a rail vehicle, including four slidably connected masking plates, a suction cup assembly, and a protective cover. By adjusting the position of the masking plates and fixing them with suction, combined with the protective cover and air purification equipment, it can prevent paint from being accidentally sprayed onto other painted surfaces and simplify the use of tape.
It improved the efficiency of paint touch-up, reduced the amount of tape used and the removal time, and accelerated the maintenance progress.
Smart Images

Figure CN224586136U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spray painting technology, and in particular to a spray painting masking tool for the side roof of a rail vehicle. Background Technology
[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.
[0003] During the operation of rail vehicles, the side top panels may experience paint peeling due to long-term exposure to the external environment. During maintenance, maintenance personnel need to remove the peeling side top panels, grind and clean the damaged parts, then use tape to cover the non-painted areas before proceeding with the painting work.
[0004] However, due to the large area of the side roof of rail vehicles, in order to avoid accidentally spraying paint onto other intact surfaces, it is often necessary to apply a large area of tape for masking. This not only increases the preparation time before touch-up painting, but also makes the tape removal work after touch-up painting cumbersome and time-consuming. In the frequent touch-up painting work, this process greatly reduces maintenance efficiency and affects the maintenance progress of the vehicle. Utility Model Content
[0005] The purpose of this utility model is to address the aforementioned shortcomings by providing a tool for masking and spraying paint on the side roof of rail vehicles, thereby improving the efficiency of paint touch-up.
[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a tool for masking paint on the side roof of a rail vehicle, comprising: Four shielding plates are attached to each other to form a rectangular spraying area, and each pair of adjacent shielding plates are slidably connected to each other. Multiple suction cup components are respectively set on the side of each shielding plate away from the rectangular spraying area, and are used to adhere to the part to be sprayed after the size of the rectangular spraying area is adjusted. The protective cover includes a soft, transparent cover body in the shape of an inverted funnel, the bottom of the cover body being located within a rectangular paint spraying area and detachably connected to each shielding plate, the top of the cover body having an exhaust outlet detachably connected to an air purification device, and the protective cover also including a sleeve provided on the cover body for allowing an arm to extend from outside the cover into the cover.
[0007] Furthermore, the shielding plate includes a support, a slider is provided at one end of the support in the length direction, a groove is provided on the support for the corresponding slider of another shielding plate to slide along the length direction of the support, and a baffle is provided on the top of the support on one side in the width direction of the support.
[0008] Furthermore, the suction cup assembly includes a mounting base disposed on the side of the baffle away from the rectangular spray painting area and a suction cup located at the bottom of the mounting base. The top of the suction cup is provided with an adjustment handle that passes through the mounting base and is threadedly connected to the mounting base.
[0009] Furthermore, a splicing assembly is provided between the cover and the slider, and the cover is detachably connected to the slider through the splicing assembly.
[0010] Furthermore, the splicing assembly includes a rope threading seat disposed on the slider, the rope threading seat being provided with a rope threading hole, and the splicing assembly also includes multiple hanging ropes and sub-buckles disposed on the cover body, the end of the hanging rope away from the cover body being provided with a female buckle adapted to the sub-buckle, the hanging rope passing through the rope threading hole and being fastened to the sub-buckle through the female buckle.
[0011] The beneficial effects of this utility model are reflected in: This invention allows users to slide and adjust the positions of four masking plates according to the size of the area to be painted, making the rectangular spraying area slightly larger than the area to be painted. This allows operators to simply apply a small amount of tape around the area to be painted, then place the adjusted masking plates on the part to be repaired. After fixing the masking plates to the part using suction cups, the cover is connected to both the masking plates and the air purification device. This allows the operator to extend their arm holding the spray gun from the sleeve into the cover to spray the area to be painted. The cooperation between the masking plates and the cover prevents excess paint mist from accidentally spraying onto other intact painted surfaces. Furthermore, after painting, simply remove the masking tool and a small amount of tape, thus improving the efficiency of paint repair. Attached Figure Description
[0012] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the working process of this utility model; Figure 3 This is a structural view of the shielding plate of this utility model; Figure 4 This is a structural view of the splicing component of this utility model.
[0013] In the picture: 1. Shielding plate; 11. Support; 12. Slider; 13. Baffle; 2. Suction cup assembly; 3. Protective cover; 31. Cover body; 32. Sleeve cover; 4. Splicing assembly; 41. Rope threading seat; 42. Hanging rope; 43. Buckle. Detailed Implementation
[0014] 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 a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0015] Please see Figure 1-4 This utility model discloses a tool for masking paint on the side roof of a rail vehicle, comprising: Four masking plates 1 are connected to each other to form a rectangular spray painting area, and each pair of adjacent masking plates 1 are slidably connected to each other. Multiple suction cup components 2 are respectively disposed on the side of each shielding plate 1 away from the rectangular spraying area, and are used to adhere to the part to be sprayed after the size of the rectangular spraying area is adjusted. The protective cover 3 includes a soft and transparent cover body 31 in the shape of an inverted funnel. The bottom of the cover body 31 is located within a rectangular spray painting area and is detachably connected to each shielding plate 1. The top of the cover body 31 has an exhaust outlet that is detachably connected to an air purification device. The protective cover 3 also includes a sleeve 32 disposed on the cover body 31 for allowing an arm to extend from outside the protective cover 3 into the protective cover 3.
[0016] This invention allows users to slide and adjust the positions of the four masking plates 1 according to the size of the area to be painted, making the rectangular spraying area slightly larger than the area to be painted. This allows the operator to simply apply a small amount of tape around the area to be painted, and then place the adjusted masking plate 1 on the part to be repaired. After fixing the masking plate 1 to the part to be repaired by the suction cup assembly 2, the cover 31 is connected to the masking plate 1 and the air purification equipment respectively. This allows the operator to extend their arm holding the spray gun from the sleeve 32 into the cover 31 to spray paint the area to be painted. Due to the cooperation of the masking plate 1 and the cover 31, excess paint mist can be avoided from being sprayed onto other intact painted surfaces. At the same time, after the painting is completed, the masking tool can be removed and the small amount of tape can be removed, thereby improving the efficiency of paint repair.
[0017] It should be noted that air purification equipment is common knowledge in this field, so its specific structure and working principle will not be elaborated on in this article.
[0018] In one embodiment, the shielding plate 1 includes a support 11, a slider 12 is provided at one end of the support 11 along its length, a groove is provided on the support 11 for the corresponding slider 12 of another shielding plate 1 to slide along the length of the support 11, and a baffle 13 is provided on the top of the support 11 on one side of the support 11 along its width.
[0019] This design allows two adjacent shielding plates 1 to engage via slider 12, improving stability after adjustment.
[0020] It should be noted that the bottom of the support 11 is detachably equipped with a silicone layer for contact with the repair part, which is used to reduce damage to the paint surface of the repair part during the handling process. After the masking plate 1 is used, the paint adhering to it should be cleaned and removed to avoid affecting subsequent use.
[0021] In one embodiment, the suction cup assembly 2 includes a mounting base disposed on the side of the baffle 13 away from the rectangular spray painting area and a suction cup located at the bottom of the mounting base. The top of the suction cup is provided with an adjustment handle that passes through the mounting base and is threadedly connected to the mounting base.
[0022] This design allows operators to lower the suction cup by rotating the adjustment handle, causing the suction cup to adhere to the repair part, thus preventing the masking plate 1 from moving during the paint touch-up process.
[0023] In one embodiment, the sleeve 32 is provided with an elastic band to fit as close to the arm as possible after the arm is inserted, thereby reducing paint mist seepage.
[0024] In one embodiment, a splicing component 4 is provided between the cover 31 and the slider 12, and the cover 31 is detachably connected to the slider 12 through the splicing component 4.
[0025] This design places the lower edge of the cover 31 below the baffle 13, so that when paint mist leaks out from between the lower edge of the cover 31 and the support 11, the baffle 13 can block the paint mist, further improving the protection.
[0026] In one embodiment, the splicing component 4 includes a rope threading seat 41 disposed on the slider 12, the rope threading seat 41 being provided with a rope threading hole, the splicing component 4 also includes a plurality of hanging ropes 42 and a female buckle 43 disposed on the cover 31, the end of the hanging rope 42 away from the cover 31 being provided with a female buckle adapted to the female buckle 43, the hanging rope 42 passing through the rope threading hole and being fastened to the female buckle 43 through the female buckle.
[0027] This design allows the cover 31 to pass the hanging rope 42 through the corresponding rope hole and then be fastened to the slider 12 by the female buckle and the female buckle 43. After use, the cover can be quickly disassembled by simply separating the female buckle and the female buckle 43.
[0028] It should be noted that the protective cover 3 is a disposable item. After use, it can be removed and discarded.
[0029] In practice, elastic ropes can be added to the four sides of the bottom of the cover 31 so that when the rectangular painting area is reduced, the four sides of the bottom of the cover 31 can also be locked accordingly to improve the sealing performance.
[0030] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0032] Additionally, "multiple" refers to two or more.
[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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. A tool for masking paint on the side roof of a rail vehicle, characterized in that, include: Four shielding plates (1) are abutted against each other to form a rectangular spray painting area, and each pair of adjacent shielding plates (1) are slidably connected to each other; Multiple suction cup components (2) are respectively set on the side of each shielding plate (1) away from the rectangular spray painting area, and are used to adhere to the part to be painted after the size of the rectangular spray painting area is adjusted; The protective cover (3) includes a soft and transparent cover body (31) in the shape of an inverted funnel. The bottom of the cover body (31) is located in a rectangular spray painting area and is detachably connected to each shielding plate (1). The top of the cover body (31) has an exhaust outlet that is detachably connected to an air purification device. The protective cover (3) also includes a sleeve (32) set on the cover body (31). The sleeve (32) is used to allow an arm to extend from outside the protective cover (3) into the protective cover (3).
2. The tool for masking paint on the side roof of a rail vehicle according to claim 1, characterized in that: The shielding plate (1) includes a support (11), a slider (12) is provided at one end of the support (11) in the length direction, a groove is provided on the support (11) for the corresponding slider (12) of another shielding plate (1) to slide along the length direction of the support (11), and a baffle (13) is provided on the top of the support (11) on one side in the width direction of the support (11).
3. The tool for masking paint on the side roof of a rail vehicle according to claim 2, characterized in that: The suction cup assembly (2) includes a mounting base located on the side of the baffle (13) away from the rectangular spray painting area and a suction cup located at the bottom of the mounting base. The top of the suction cup is provided with an adjustment handle that passes through the mounting base and is threadedly connected to the mounting base.
4. The tool for masking paint on the side roof of a rail vehicle according to claim 2, characterized in that: A splicing component (4) is provided between the cover (31) and the slider (12), and the cover (31) is detachably connected to the slider (12) through the splicing component (4).
5. The tool for masking paint on the side roof of a rail vehicle according to claim 4, characterized in that: The splicing assembly (4) includes a rope seat (41) disposed on the slider (12), the rope seat (41) is provided with a rope hole, the splicing assembly (4) also includes a plurality of hanging ropes (42) and a female buckle (43) disposed on the cover (31), the end of the hanging rope (42) away from the cover (31) is provided with a female buckle that is compatible with the female buckle (43), the hanging rope (42) passes through the rope hole and is fastened to the female buckle (43) through the female buckle.