Roller suitable for special-shaped wall surface

Abstract

The invention relates to the field of coating tools, in particular to a roller suitable for a special-shaped wall face. Comprising a roller body and a handle part rotationally connected with the roller body. The roller body is of a hollow structure, the peripheral curved surface of the roller body is an elastic curved surface body, the interior of the roller body is inflated, the elastic curved surface body of the roller body expands and protrudes to be in a waist drum shape, and when the elastic curved surface body makes extrusion contact with the wall face, adaptive deformation can be conducted. According to the roller suitable for the special-shaped wall surface, the elastic curved surface body of the roller can be fully attached to the special-shaped wall surface when inflated and expanded, and roller painting of the special-shaped wall surface is facilitated.

Description

Technical Field

[0001] This application relates to the field of painting tools, and in particular to a roller suitable for irregularly shaped walls. Background Technology

[0002] Roller coating is a continuous coating process that uses a roller as both a carrier and a coating tool to uniformly coat a flat substrate surface through contact transfer. Due to its relatively low paint consumption and ease of application, roller coating is a commonly used method for architectural coatings.

[0003] Currently, most architectural paint rollers on the market are only suitable for flat surfaces. For irregularly shaped walls such as spheres, folds, irregular shapes, and corners, the rollers cannot fully adhere to the surface, making it difficult to apply the paint evenly. This requires multiple coats or brushing for detailed touch-ups, which is time-consuming and labor-intensive. Spraying is also an option for irregularly shaped walls, as it consumes a lot of paint, creates a less than ideal working environment, and makes it difficult to control the uniformity of the paint film on uneven surfaces. Summary of the Invention

[0004] In view of this, this application provides a roller suitable for irregular wall surfaces, wherein the elastic curved body of the roller can fully conform to the irregular wall surface when inflated, which facilitates roller coating of irregular wall surfaces.

[0005] To achieve the above objectives, this application employs the following technical solution:

[0006] A roller suitable for irregularly shaped walls, characterized in that: it includes a roller body and a handle part rotatably connected to the roller body; the roller body is a hollow structure, and the outer peripheral curved surface of the roller body is an elastic curved surface, the roller body is inflated with air, and the elastic curved surface of the roller body expands and protrudes into a waist drum shape, and the elastic curved surface can undergo adaptive deformation when it is pressed into contact with the wall surface.

[0007] The roller described in this application is suitable for irregularly shaped walls. By inflating the roller body with air, the elastic curved body can expand. The elastic curved body has elasticity and can adapt to deformation when in contact with the wall, so it can fully fit the wall and is suitable for different types of irregularly shaped walls, with good applicability.

[0008] In some embodiments, the handle portion includes a roller and a crank portion fixedly connected to one end of the roller, and a through-shaft channel is provided in the middle of the roller body, and the roller is rotatably connected in the through-shaft channel.

[0009] In some embodiments, the roller body further includes two support sides disposed at both ends and a through-shaft portion connected between the two support sides. The elastic curved body is connected between the two support sides and located outside the through-shaft portion. The through-shaft portion has the through-shaft channel inside. The roller body is integrally molded from rubber material, and the wall thickness of the elastic curved body is less than the wall thickness of the support sides at both ends and the through-shaft portion. An inflation valve core for convenient inflation is provided on the support side of the roller body.

[0010] In some embodiments, a support tube is fixedly installed within the through-shaft channel, and the roller is rotatably connected within the support tube. This support tube is made of a rigid material, such as steel, and is not easily deformed under pressure. The main function of this support tube is to restrict the inward contraction of the through-shaft channel, thereby affecting the rotation of the roller.

[0011] In some embodiments, the left and right sides of the through-shaft channel are provided with a first step and a second step. The supporting tube includes a first locking member and a second locking member. The first locking member includes a first locking head and a first locking rod fixedly connected to the first locking head. The first locking rod is provided with an external thread. The second locking member includes a second locking head and a second locking rod fixedly connected to the second locking head. The second locking rod is provided with a built-in groove. The inner wall of the built-in groove is provided with an internal thread. The first locking member and the second locking member are installed in the through-shaft channel, and the external thread of the first locking rod is threadedly connected to the internal thread of the second locking rod, so that the first locking member and the second locking member pull each other. The first locking head and the second locking head are respectively locked on the first step and the second step on the left and right sides. The first locking rod is provided with a first channel inside, and the second locking rod is provided with a second channel inside. The roller is rotatably installed in the first channel and the second channel. The supporting tube is formed by the threaded connection of the first locking member and the second locking member, and supports the through shaft channel. The first locking member and the second locking member are provided with internal hexagonal grooves to facilitate the rotation of the tool. The roller rotates inside the first locking member and the second locking member.

[0012] In some embodiments, two bearings located on the left and right sides of the support tube are fixedly installed in the through-shaft channel, and the two ends of the roller are connected to the two bearings respectively.

[0013] In some embodiments, a third step and a fourth step are respectively provided at both ends of the through-shaft channel. End caps are fitted at both the third and fourth steps. The end caps are fastened to the side of the roller body by screws, and each end cap has a pressing part that presses against the bearing from the side, restricting bearing movement. The end caps serve a sealing and isolating function, as well as an axial limiting function.

[0014] In some embodiments, the ends of the roller and the crank portion are provided with a connector, which can be sleeved onto the end of the roller, and the connector and the roller are also locked together by screws.

[0015] In some embodiments, the outer surface of the elastic curved body is further covered with a roll layer. The roll layer can be a separate structure, secured by means of expansion and tight fit, binding, or snap-fit ​​of the elastic curved body. Alternatively, it can be integrally molded onto the elastic curved body.

[0016] As can be seen from the above technical solution, this application has at least the following advantages and positive effects:

[0017] 1. This application provides a roller suitable for irregularly shaped walls. By inflating the roller body with air, the elastic curved body can expand. The elastic curved body has elasticity and can adapt to deformation when in contact with the wall, so it can fully fit the wall and is suitable for different types of irregularly shaped walls, with good applicability.

[0018] 2. Compared with traditional roller coating, this application adheres to the wall surface more effectively, resulting in more thorough roller coating application, reducing repair work, and saving time and effort.

[0019] 3. The roller design of this application is simple, widely applicable, lightweight and easy to use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0021] Figure 2 This is an exploded view of an embodiment of this application;

[0022] Figure 3 This is a cross-sectional view of an embodiment of this application;

[0023] Figure 4 This is a cross-sectional view of the roller body in an embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the supporting pipe in the embodiments of this application;

[0025] Figure 6 This is a cross-sectional view of the support pipe in an embodiment of this application;

[0026] Figure 7 Usage status of this application embodiment Figure 1 ;

[0027] Figure 8 Usage status of this application embodiment Figure 2 .

[0028] Labeling Explanation: 1. Roller body; 11. Elastic curved surface; 12. Through-shaft channel; 13. First step; 14. Second step; 15. Third step; 16. Fourth step; 17. Support side; 18. Through-shaft part; 2. Handle part; 21. Roller; 22. Crank part; 221. Joint; 3. Air valve core; 4. Support pipe; 41. First locking part; 411. First lock head; 412. First lock rod; 413. First channel; 42. Second locking part; 421. Second lock head; 422. Second lock rod; 423. Second channel; 424. Internal hexagonal groove; 5. Bearing; 6. End cover; 61. Extrusion part; 7. Wall surface. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the application will be described in further detail below with reference to the accompanying drawings. The terminology used in the embodiments section of this application is only for explaining specific embodiments and is not intended to limit the application.

[0030] See Figures 1 to 8 This application provides a roller suitable for irregular wall surfaces, including a roller body 1 and a handle part 2 rotatably connected to the roller body 1; the roller body 1 has a hollow structure, and the outer peripheral curved surface of the roller body 1 is an elastic curved body 11. The roller body 1 is filled with air, and the elastic curved body 11 of the roller body 1 expands and protrudes into a waist drum shape. When the elastic curved body 11 is pressed and contacted with the wall surface 7, it can undergo adaptive deformation.

[0031] This roller, suitable for irregularly shaped walls, expands its elastic curved body 11 by inflating the roller body 1. The elastic curved body 11 is elastic and can deform adaptively when in contact with the wall surface 7, so it can fully fit the wall surface 7 and is suitable for different types of irregularly shaped walls 7, with good applicability.

[0032] The handle part 2 includes a roller 21 and a crank part 22 fixedly connected to one end of the roller 21. A shaft passage 12 is provided in the middle of the roller body 1, and the roller 21 is rotatably connected in the shaft passage 12.

[0033] The roller body 1 also includes two support sides 17 located at both ends and a through-shaft portion 18 connected between the two support sides 17. The elastic curved body 11 is connected between the two support sides 17 and located outside the through-shaft portion 18. The through-shaft portion 18 has an internal through-shaft channel 12. The roller body 1 is integrally molded from rubber material, and the wall thickness of the elastic curved body 11 is less than the wall thickness of the two support sides 17 and the through-shaft portion 18. An inflation valve core 3 is provided on the support sides 17 of the roller body 1 for convenient inflation. The two support sides 17 and the through-shaft portion 18 of the roller body 1 have thicker walls to provide basic support, while the elastic curved body 11 has thinner walls to facilitate contact deformation.

[0034] A support tube 4 is fixedly installed inside the through-shaft channel 12, and the roller 21 is rotatably connected inside the support tube 4. The support tube 4 is made of a rigid material that is not easily deformed under pressure, such as steel. The main function of the support tube 4 is to restrict the inward contraction of the through-shaft channel 12, thereby affecting the rotation of the roller 21.

[0035] The through-shaft channel 12 has a first step 13 and a second step 14 on its left and right sides. The support tube 4 includes a first locking member 41 and a second locking member 42. The first locking member 41 includes a first locking head 411 and a first locking rod 412 fixedly connected to the first locking head 411. The first locking rod 412 has external threads. The second locking member 42 includes a second locking head 421 and a second locking rod 422 fixedly connected to the second locking head 421. The second locking rod 422 has an internal groove, and the inner wall of the internal groove has internal threads. A locking member 41 and a second locking member 42 are installed in the through-shaft channel 12, and the external thread of the first locking rod 412 is threadedly connected to the internal thread of the second locking rod 422, so that the first locking member 41 and the second locking member 42 pull each other, and the first locking head 411 and the second locking head 421 are respectively locked on the first step 13 and the second step 14 on the left and right sides. The first locking rod 412 has a first channel 413 inside, and the second locking rod 422 has a second channel 423 inside. The roller 21 is rotatably installed in the first channel 413 and the second channel 423. The support tube 4 is formed by the threaded connection of the first locking member 41 and the second locking member 42, and supports the through-shaft channel 12. The first locking member 41 and the second locking member 42 are provided with internal hexagonal grooves 424 to facilitate the rotation of the two by tools. The roller 21 rotates inside the first locking member 41 and the second locking member 42.

[0036] Two bearings 5 ​​are fixedly installed in the through-shaft channel 12, located on the left and right sides of the support tube 4 respectively, and the two ends of the roller 21 are connected to the two bearings 5 ​​respectively.

[0037] The two ends of the through-shaft channel 12 are respectively provided with a third step 15 and a fourth step 16. End caps 6 are fitted onto both the third step 15 and the fourth step 16. The end caps 6 are fastened to the side of the roller body 1 by screws, and the end caps 6 have a pressing part 61. The pressing part 61 presses against the bearing 5 from the side, restricting the movement of the bearing 5. The end caps 6 serve a sealing and isolating function, and also act as an axial limiter.

[0038] The ends of the roller 21 and the crank portion 22 are provided with a connector 221, which can be sleeved onto the end of the roller 21. The connector 221 and the roller 21 are also locked together by screws.

[0039] The elastic curved surface 11 is further covered with a layer of roller texture. The roller texture layer can be a separate structure, which is fixed by means of expansion and tight fit, binding, or snap-fit ​​of the elastic curved surface 11. Alternatively, it can be integrally formed on the elastic curved surface 11.

[0040] The following is a brief description of the working process and usage method of a roller suitable for irregularly shaped walls according to the above embodiments:

[0041] During use, the roller is inflated by the inflation valve core 3. The inflation amount can be adjusted according to the specific conditions of the irregular wall surface 7, thereby controlling the degree of deformation of the elastic curved body 11. When the elastic curved body 11 contacts and compresses the wall surface 7, it can deform accordingly, similar to a balloon. This allows it to fit the wall surface 7 more closely, reducing repair work and making it highly adaptable.

[0042] During the assembly process, the first locking part 41 and the second locking part 42 are first threaded together and installed in place, then the roller 21 is inserted, and then bearings 5 ​​are installed at both ends. After that, end caps 6 are installed at both ends, and finally the crank part 22 is locked with the roller 21 to complete the assembly.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them; although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A roller suitable for irregularly shaped walls, characterized in that: It includes a roller body (1) and a handle part (2) rotatably connected to the roller body (1); the roller body (1) is a hollow structure, and the outer peripheral curved surface of the roller body (1) is an elastic curved body (11). The roller body (1) is filled with air, and the elastic curved body (11) of the roller body (1) expands and protrudes into a waist drum shape. When the elastic curved body (11) is pressed and contacted with the wall surface (7), it can undergo adaptive deformation.

2. The roller suitable for irregularly shaped walls according to claim 1, characterized in that: The handle part (2) includes a roller (21) and a crank part (22) fixedly connected to one end of the roller (21). A through-shaft channel (12) is provided in the middle of the roller body (1), and the roller (21) is rotatably connected in the through-shaft channel (12).

3. A roller suitable for irregularly shaped walls according to claim 2, characterized in that: The roller body (1) also includes two support sides (17) located at both ends and a through shaft part (18) connected between the two support sides (17). The elastic curved body (11) is connected between the two support sides (17) and located outside the through shaft part (18). The through shaft part (18) has the through shaft channel (12) inside. The roller body (1) is integrally molded from rubber material, and the wall thickness of the elastic curved body (11) is less than the wall thickness of the support sides (17) and the through shaft part (18). The support sides (17) of the roller body (1) are provided with an inflation valve core (3) for convenient inflation.

4. A roller suitable for irregularly shaped walls according to claim 2, characterized in that: A support tube (4) is fixedly installed inside the through-shaft channel (12), and the roller (21) is rotatably connected inside the support tube (4).

5. A roller suitable for irregularly shaped walls according to claim 4, characterized in that: The through-shaft channel (12) has a first step (13) and a second step (14) on its left and right sides. The support tube (4) includes a first locking member (41) and a second locking member (42). The first locking member (41) includes a first lock head (411) and a first locking rod (412) fixedly connected to the first lock head (411). The first locking rod (412) has an external thread. The second locking member (42) includes a second lock head (421) and a second locking rod (422) fixedly connected to the second lock head (421). The second locking rod (422) has an internal groove, and the inner wall of the internal groove has an internal thread. The first locking member (41) and the second locking member (42) are installed in the through shaft channel (12), and the external thread of the first locking rod (412) is threadedly connected to the internal thread of the second locking rod (422), so that the first locking member (41) and the second locking member (42) pull each other, and the first locking head (411) and the second locking head (421) are respectively locked on the first step (13) and the second step (14) on the left and right sides. The first locking rod (412) has a first channel (413) inside, and the second locking rod (422) has a second channel (423) inside. The roller (21) is rotatably installed in the first channel (413) and the second channel (423).

6. A roller suitable for irregularly shaped walls according to claim 5, characterized in that: Two bearings (5) are fixedly installed in the through-shaft channel (12), located on the left and right sides of the support tube (4), respectively. The two ends of the roller (21) are connected to the two bearings (5) respectively.

7. A roller suitable for irregularly shaped walls according to claim 5, characterized in that: The two ends of the through-shaft channel (12) are respectively provided with a third step (15) and a fourth step (16). An end cap (6) is fitted at both the third step (15) and the fourth step (16). The end cap (6) is fastened to the side of the roller body (1) by screws, and the end cap (6) has a pressing part (61). The pressing part (61) presses against the bearing (5) from the side, restricting the movement of the bearing (5).

8. A roller suitable for irregularly shaped walls according to claim 2, characterized in that: The roller (21) and the crank (22) are provided with a connector (221) at their ends. The connector (221) can be sleeved onto the end of the roller (21). The connector (221) and the roller (21) are also locked together by screws.

9. A roller suitable for irregularly shaped walls according to claim 2, characterized in that: The elastic curved surface (11) is also covered with a layer of roller hair.

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