Paint brushing device for large-curvature arc-shaped wall
By designing the flexible cylindrical structure of the elastic bending shaft and the paint cloth, the problem of time-consuming and labor-intensive paint application on curved surfaces with large curvature is solved, efficient and uniform paint application effects are achieved, costs are reduced and construction quality is improved.
Patent Information
- Application Number
- CN202422620019.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-29
AI Technical Summary
Painting large-curvature surfaces requires a lot of time and labor costs, is inefficient, and has poor construction quality. Existing small-sized roller brushes cannot fully fit the curved surface, resulting in uneven painting and color difference.
It adopts elastic bending shaft and elastic paint cloth, combined with rotating bearing, bracket and handle, and is designed into a flexible cylindrical structure. It can bend and fit the surface of large curvature curved wall under the action of external force to ensure uniform application of paint.
It improves painting efficiency and quality, reduces labor costs, avoids paint shedding and color difference, has strong adaptability, is easy to operate and has low cost.
Smart Images
Figure CN223358635U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to a paint painting device for large-curvature curved walls. Background Art
[0002] During the application of decorative paint, the base layer often has a large curvature, which increases the difficulty and reduces the efficiency of the application. During the paint application process, when the base layer has a small curvature, a small roller brush is usually used for application. This is convenient but inefficient. However, when the curvature is large, a small roller brush may not be able to fully conform to the surface, resulting in insufficient applicability and uneven application. Therefore, applying paint to large curvature surfaces requires a significant amount of time and labor, which not only affects the construction schedule but also increases financial costs.
[0003] At the same time, due to the insufficient contact area between the roller brush and the large-curvature curved surface, the painting effect is poor, and color difference or paint peeling is likely to occur after forming, affecting the construction quality. Therefore, it is necessary to provide a paint painting device for large-curvature curved walls, which can solve the problems of large-curvature curved surface soil material painting in the existing technology, which consumes time and manpower, is high in cost, has low efficiency and poor construction quality. Summary of the Invention
[0004] The purpose of the utility model is to provide a paint brushing device for large-curvature curved walls, which can solve the problems in the prior art of large-curvature curved surface soil material painting, which consumes time and manpower, has high costs, low efficiency and poor construction quality.
[0005] The utility model is achieved in this way:
[0006] A paint brushing device for large-curvature curved walls includes an elastic bending shaft, a rotating bearing, a bracket, a handle, and an elastic paint cloth; the elastic bending shaft has a flexible cylindrical structure, and the elastic paint cloth is wrapped around the cylindrical surface of the elastic bending shaft; the two ends of the elastic bending shaft are rotatably mounted on one end of the bracket via rotating bearings, and the other end of the bracket is connected to the handle.
[0007] The elastic bending shaft includes an elastic outer ring, an elastic inner ring and a rolling body; the elastic outer ring is sleeved on the outside of the elastic inner ring, a cavity is formed between the elastic outer ring and the elastic inner ring, and the rolling body is arranged in the cavity between the elastic outer ring and the elastic inner ring; the two ends of the elastic outer ring are rotatably connected to the bracket through rotating bearings.
[0008] The rolling body is spiral-shaped, the outer ring of the rolling body is in rolling contact with the inner wall of the elastic outer ring, and the inner wall of the rolling body is in rolling contact with the outer wall of the elastic inner ring.
[0009] The two ends of the spiral rolling body form a dense spiral structure, that is, the spiral pitch at the two ends of the rolling body is smaller than the spiral pitch of the main part of the rolling body.
[0010] The elastic outer ring, the elastic inner ring, the rolling element and the rotary bearing are coaxially arranged.
[0011] The rotating bearing includes a bearing seat and spokes. The outer ring of the bearing seat is fixedly connected to the bracket. One end of several spokes is connected to the inner ring of the bearing seat along the circumference of the bearing seat, and the other end of several spokes is connected to the elastic outer ring of the elastic bending shaft along the circumference of the elastic bending shaft.
[0012] The handle is composed of a plurality of handle units which are telescopically sleeved in sequence.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. The utility model is provided with an elastic bending shaft and an elastic coating cloth. After the elastic bending shaft and the elastic coating cloth abut against the surface of the large-curvature curved wall, they can bend and deform under the action of external force, so that they can effectively fit the surface of the large-curvature curved wall, thereby ensuring the uniformity of the rolling contact between the elastic coating cloth and the surface of the large-curvature curved wall, and further ensuring that the elastic coating cloth can evenly apply the paint on the large-curvature curved wall with a certain brushing pressure, thereby improving the brushing efficiency while ensuring the brushing quality, and the elastic bending shaft can adopt a larger size than the small model, which is conducive to reducing labor costs and working hours.
[0015] 2. The utility model is provided with a rotating bearing, a bracket and a handle. The rotating bearing can ensure the reliable installation and flexible rotation of the elastic bending shaft on the bracket, thereby further ensuring the painting efficiency and painting quality. The handle adopts a telescopic structure, which can adapt to the painting needs at different positions of the large curvature curved wall. It has good adaptability and practicality, simple structure, easy material acquisition and production, convenient operation and low cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic structural diagram of a paint brushing device for large-curvature curved walls according to the present invention;
[0017] Figure 2 It is a side sectional view of an elastic bending shaft in a paint painting device for a large-curvature curved wall according to the present invention.
[0018] In the figure, 1 is an elastic bending shaft, 101 is an elastic outer ring, 102 is an elastic inner ring, 103 is a rolling element, 2 is a rotating bearing, 201 is a bearing seat, 202 is a spoke, 3 is a bracket, 4 is a handle, and 5 is an elastic coating cloth. DETAILED DESCRIPTION
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0020] Please see the attached Figure 1 A paint brushing device for a large-curvature curved wall includes an elastic bending shaft 1, a rotating bearing 2, a bracket 3, a handle 4 and an elastic paint cloth 5; the elastic bending shaft 1 has a flexible cylindrical structure, and the elastic paint cloth 5 is wrapped around the cylindrical surface of the elastic bending shaft 1; the two ends of the elastic bending shaft 1 are rotatably mounted on one end of the bracket 3 through the rotating bearing 2, and the other end of the bracket 3 is connected to the handle 4.
[0021] Preferably, the elastic bending shaft 1 can be made of galvanized soft steel wire, which has a certain compressive deformation capacity and can return to its original shape after pressure release. Its elastic coefficient can be selected according to the curvature adaptability of the large curvature curved wall, so that the elastic bending shaft 1 can bend to a curvature consistent with the curvature of the large curvature curved wall, thereby ensuring that the elastic coating cloth 5 wrapped on its surface can be completely attached to the surface of the large curvature curved wall, thereby ensuring the uniformity of the coating, and the coating will not have color difference or fall off, ensuring construction efficiency and construction quality.
[0022] Preferably, the elastic coating cloth 5 can be made of flexible absorbent fabrics such as sponge cloth and non-woven fabric. It can not only fully absorb the paint and facilitate the application of the paint, but also deform with the elastic bending axis 1, so as to evenly fit the surface of the large curvature curved wall, thereby ensuring the efficiency and quality of the painting construction.
[0023] Please see the attached Figure 2 The elastic bending shaft 1 includes an elastic outer ring 101, an elastic inner ring 102 and a rolling body 103; the elastic outer ring 101 is sleeved on the outside of the elastic inner ring 102, and a cavity is formed between the elastic outer ring 101 and the elastic inner ring 102. The rolling body 103 is arranged in the cavity between the elastic outer ring 101 and the elastic inner ring 102; the two ends of the elastic outer ring 101 are rotatably connected to the bracket 3 through the rotating bearing 2.
[0024] Preferably, the elastic outer ring 101 and the elastic inner ring 102 can both include a pair of end outer rings and a plurality of elastic soft steel wires spaced apart and connected between the pair of end outer rings. The elastic soft steel wires can be spaced apart in a spiral structure to form the cylindrical outer wall and the cylindrical inner wall of the elastic curved shaft 1. Under the extrusion of external force, the bending deformation of the plurality of elastic steel wires is utilized to form a shape consistent with the curvature of the large curvature curved wall, thereby ensuring effective fit with the surface of the large curvature curved wall with a certain brushing pressure.
[0025] The rolling body 103 is used to be placed in the cavity between the elastic outer ring 101 and the elastic inner ring 102 to support the elastic outer ring 101 and the elastic inner ring 102, thereby ensuring that the elastic bending shaft 1 forms a cylindrical structure or a curved cylindrical structure.
[0026] Please see the attached Figure 1 and attached Figure 2 The rolling body 103 is spiral-shaped, the outer ring of the rolling body 103 is in rolling contact with the inner wall of the elastic outer ring 101, and the inner wall of the rolling body 103 is in rolling contact with the outer wall of the elastic inner ring 102.
[0027] The spiral rolling element 103 is made of elastic soft steel wire and has good bending deformation performance, similar to the twisting of a spring, and can better adapt to the bending deformation of the elastic bending shaft 1, so that it can effectively fit the curved convex surface of large-curvature curved walls with different curvatures and good adaptability.
[0028] Please see the attached Figure 1 The two ends of the spiral rolling body 103 form an encrypted spiral structure, that is, the spiral pitch at the two ends of the rolling body 103 is smaller than the spiral pitch of the main part of the rolling body 103.
[0029] The two ends of the rolling body 103 adopt an encrypted structure, which can improve the connection stability of the connection between the rolling body 103 and the rotating bearing 2, thereby ensuring that the handle 4 transmits pressure to the elastic bending shaft 1 through the bracket 3 and the rotating bearing 2, so as to ensure that the main part of the elastic bending shaft 1 can undergo effective bending deformation and fit to the surface of the large curvature curved wall.
[0030] Preferably, the spiral pitch and density pitch of the rolling element 103 can be adaptively adjusted according to actual use requirements, and the length and diameter of the elastically curved shaft 1 can also be adaptively adjusted according to actual use requirements. Due to the bending properties of the elastically curved shaft 1, the length and diameter of the elastically curved shaft 1 can be larger than those of smaller paint brushes, thereby improving painting efficiency while ensuring painting quality.
[0031] The bracket 3 and the rotating bearing 2 can be made of hard materials, such as plastic, metal, etc., to ensure the structural strength of the force applying and transmitting parts.
[0032] Please see the attached Figure 1 The elastic outer ring 101, the elastic inner ring 102, the rolling element 103 and the rotating bearing 2 are coaxially arranged to ensure the transmission of pressure.
[0033] Please see the attached Figure 1 The rotating bearing 2 includes a bearing seat 201 and spokes 202. The outer ring of the bearing seat 201 is fixedly connected to the bracket 3. One end of a plurality of spokes 202 is connected to the inner ring of the bearing seat 201 along the circumference of the bearing seat 201, and the other end of a plurality of spokes 202 is connected to the elastic outer ring 101 of the elastic bending shaft 1 along the circumference of the elastic bending shaft 1.
[0034] The inner ring of bearing seat 201 rotates relative to the outer ring, rotating the elastically curved shaft 1. This causes the elastic coating cloth 5 to roll across the surface of the large-curvature curved wall, evenly applying the coating. Spokes 202 ensure flexible rotation and effective coating of the elastically curved shaft 1. They also enhance the stability of the connection between bearing seat 201 and bracket 3. The number of spokes 202 can be adjusted to meet specific connection requirements.
[0035] Please see the attached Figure 1 The handle 4 is composed of a plurality of handle units that are telescopically connected in sequence.
[0036] Preferably, the handle unit can be provided with 2-3 sections, and a mechanical or electric telescopic rod according to the existing technology can be used to achieve a telescopic range of 0.4-3m to meet the painting needs at different positions.
[0037] Please see the attached Figure 1 and attached Figure 2 , the usage method and working principle of the utility model are:
[0038] After the paint is evenly absorbed by the elastic bending shaft 1 and the elastic coating cloth 5 wrapped around its outer wall, the construction worker holds the handle 4 and presses the elastic bending shaft 1 and the elastic coating cloth 5 against the surface of the large-curvature curved wall with a certain pressure. The ends of the bracket 3 release the pressure toward the ends of the elastic bending shaft 1, and the central main portion of the elastic bending shaft 1 is resisted by the convex curved surface, causing the elastic bending shaft 1 and the elastic coating cloth 5 to deform, and the elastic coating cloth 5 can be completely adhered to the surface of the large-curvature curved wall. The paint application device is moved using the handle 4 to complete the painting operation on the large-curvature curved wall.
[0039] During the painting process, the length of the handle 4 can be adjusted by the relative extension and contraction of several handle units to meet the painting needs at different positions of the large-curvature curved wall.
[0040] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A paint brushing device for large curvature curved walls, characterized by: The invention comprises an elastic bending shaft (1), a rotating bearing (2), a bracket (3), a handle (4) and an elastic coating cloth (5); the elastic bending shaft (1) is in a flexible cylindrical structure, and the elastic coating cloth (5) is wrapped around the cylindrical surface of the elastic bending shaft (1); the two ends of the elastic bending shaft (1) are rotatably mounted on one end of the bracket (3) via the rotating bearing (2), and the other end of the bracket (3) is connected to the handle (4).
2. The paint brushing device for large curvature curved wall according to claim 1 is characterized in that: The elastic bending shaft (1) comprises an elastic outer ring (101), an elastic inner ring (102) and a rolling body (103); the elastic outer ring (101) is sleeved on the outside of the elastic inner ring (102), a cavity is formed between the elastic outer ring (101) and the elastic inner ring (102), and the rolling body (103) is arranged in the cavity between the elastic outer ring (101) and the elastic inner ring (102); the two ends of the elastic outer ring (101) are rotatably connected to the bracket (3) through the rotating bearing (2).
3. The paint brushing device for large-curvature curved walls according to claim 2 is characterized in that: The rolling body (103) is spiral-shaped, the outer ring of the rolling body (103) is in rolling contact with the inner wall of the elastic outer ring (101), and the inner wall of the rolling body (103) is in rolling contact with the outer wall of the elastic inner ring (102).
4. The paint brushing device for large-curvature curved walls according to claim 3 is characterized by: The two ends of the spiral rolling body (103) form a dense spiral structure, that is, the spiral pitch at the two ends of the rolling body (103) is smaller than the spiral pitch of the main part of the rolling body (103).
5. The paint brushing device for large-curvature curved walls according to claim 2 or 3, characterized in that: The elastic outer ring (101), the elastic inner ring (102), the rolling element (103) and the rotary bearing (2) are coaxially arranged.
6. The paint brushing device for large-curvature curved walls according to claim 2 is characterized in that: The rotating bearing (2) includes a bearing seat (201) and spokes (202), the outer ring of the bearing seat (201) is fixedly connected to the bracket (3), one end of a plurality of spokes (202) is connected to the inner ring of the bearing seat (201) along the circumference of the bearing seat (201), and the other end of a plurality of spokes (202) is connected to the elastic outer ring (101) of the elastic bending shaft (1) along the circumference of the elastic bending shaft (1).
7. The paint brushing device for large-curvature curved walls according to claim 1 is characterized by: The handle (4) is composed of a plurality of handle units that are telescopically sleeved in sequence.