Plastic structure easy to film operation on concave-convex surface

By introducing a flexible structure and a rotating connection design with a connecting rod into the plastic scraper, the problem of uneven film coating in the operation of traditional plastic scrapers on concave and convex curved surfaces is solved, achieving a uniform film coating effect on different curved surfaces, improving operating efficiency and equipment versatility.

CN224360697UActive Publication Date: 2026-06-16JIANGYIN JIESHENG ZHIZAO TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGYIN JIESHENG ZHIZAO TECH CO LTD
Filing Date
2025-07-07
Publication Date
2026-06-16

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Abstract

The utility model relates to surface film -coating operation technical field, and disclose an easily concave -convex surface film -coating operation's plastic structure, including handle, the inner chamber rotation of handle is connected with connecting rod, the surface rotation of connecting rod is connected with the flexible structure, the surface of handle is set up with sliding slot, the inner chamber sliding of handle is connected with connecting plate, the bottom fixed connection of connecting plate has semicircle block, the surface fixed connection of connecting plate has the limit bolt, the surface rotation of limit bolt is connected with locking nut, the surface screw thread connection of handle has locking knob, and penetrates connecting rod, the utility model discloses by introducing the flexible structure, can according to the specific form of concave -convex surface carry out the concave or convex bending, to ensure that the film -coating material can realize even pressure on different curved surfaces, significantly improve the film -coating quality.
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Description

Technical Field

[0001] This utility model relates to the field of surface coating technology, specifically a plastic structure that is easy to apply coatings to uneven surfaces. Background Technology

[0002] Plastic structures used in surface coating operations typically refer to plastic squeegees, a common tool used to evenly spread coating material onto the substrate surface. These squeegees are usually made of high-strength, chemically resistant plastics to ensure good performance in various application environments. When using plastic squeegees for coating operations, the most suitable squeegee type and size should be selected according to the specific material to ensure effective operation and achieve the desired results.

[0003] In current plastic coating operations, traditional plastic scraper structures mainly rely on the blade part to achieve uniform pressing of the coating material and ensure a smooth surface. However, traditional blade structures are usually one-piece parallel structures. This design works well when dealing with smooth surfaces, but it is inadequate when encountering uneven curved surfaces. For example, in the process of working on concave curved surfaces, it is difficult for the blade to maintain a proper contact with the surface, resulting in uneven pressing of the coating material. When working on convex curved surfaces, the blade faces similar problems and is prone to scratches or uneven coating.

[0004] In view of this, the present invention solves the above-mentioned technical problems by proposing a plastic structure that is easy to apply a coating to uneven surfaces. Utility Model Content

[0005] To address the shortcomings of the aforementioned background technology, this utility model provides a technical solution for a plastic structure that facilitates lamination operations on uneven surfaces. During lamination, the blade structure automatically adjusts according to different surface shapes to ensure uniform pressing of the laminating material, achieving a smooth and even finish. Specifically, when processing convex surfaces, the flexible structure is rotated to bend inwards to adapt to the convex surface. When working on concave surfaces, the user simply loosens the locking nut and pushes the connecting rod, causing the semi-circular block to move downwards and compress the flexible structure to bend outwards, thus adapting to the concave surface requirements. Simultaneously, the operator can lock the relative position of the handle and connecting rod using the locking knob, maintaining the flexible structure in a smooth, parallel state, suitable for lamination operations on flat surfaces. The working principle of this utility model lies in utilizing the rotational connection design of the flexible structure and the connecting rod, allowing for flexible adjustment of the contact pattern between the blade and the working surface during operation. This improves the adaptability and uniformity of the lamination operation, effectively handling uneven surfaces that traditionally cannot be matched with flat surfaces, thus enhancing the quality and efficiency of the lamination process.

[0006] This utility model provides the following technical solution: a plastic structure that is easy to apply a coating to uneven surfaces, including a handle, a connecting rod rotatably connected to the inner cavity of the handle, a bendable structure rotatably connected to the surface of the connecting rod, a sliding groove on the surface of the handle, a connecting plate slidably connected to the inner cavity of the handle, a semi-circular block fixedly connected to the bottom end of the connecting plate, a limit bolt fixedly connected to the surface of the connecting plate, a locking nut rotatably connected to the surface of the limit bolt, and a locking knob threadedly connected to the surface of the handle and extending through the connecting rod.

[0007] As a preferred technical solution of this utility model, the bendable structure includes three first connecting blocks and two second connecting blocks. The inner cavity of the second connecting block is rotatably connected to the surface of the first connecting block to achieve multi-angle bending. The bottom ends of the first connecting block and the second connecting block are all fixedly connected with blades.

[0008] As a preferred embodiment of this invention, the rotatable connection between the connecting rod and the handle adopts a bearing structure to improve rotational flexibility.

[0009] As a preferred technical solution of this utility model, the surface of the handle is provided with anti-slip texture to improve grip stability, and the locking knob is a plastic knob with anti-slip texture on its surface for easy operation.

[0010] As a preferred technical solution of this utility model, the rotatable connection between the connecting rod and the flexible structure adopts a snap-fit ​​design, which facilitates quick installation and disassembly.

[0011] As a preferred technical solution of this utility model, the bendable structure is a highly elastic plastic bendable structure, which can provide sufficient support while maintaining flexibility.

[0012] As a preferred technical solution of this utility model, the locking knob is set on the surface of the connecting rod, and the locking and releasing of the connecting rod is achieved by rotating the locking knob. The locking nut between the limiting bolt and the connecting plate adopts a threaded structure, which facilitates manual adjustment of the tightness.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The existing traditional plastic scraper structure adopts an integrated parallel blade design, which is acceptable when processing smooth surfaces. However, when facing uneven curved surfaces, the blade is difficult to maintain a proper contact with the surface, resulting in uneven coating of the film material. This utility model introduces a flexible structure that can bend inward or outward according to the specific shape of the curved surface, thereby ensuring that the film material can be evenly coated on different curved surfaces, significantly improving the coating quality.

[0015] 2. The flexible structure design of this utility model enables it to flexibly adapt to various complex curved surfaces. When working on convex curved surfaces, the flexible structure can bend inward to closely fit the convex curved surface; while when working on concave curved surfaces, by adjusting the locking nut and connecting rod, the flexible structure can bend outward to adapt to the concave curved surface. This design expands the application range of film coating operations and improves the versatility and flexibility of the equipment.

[0016] 3. This utility model uses a rotating connection design between the connecting rod and the handle to make operation simpler. Users can easily adjust the state of the bendable structure as needed and lock it in place using a locking knob to ensure that the blade remains parallel when working on a smooth surface. This design not only improves operating efficiency but also reduces the difficulty of operation, making it suitable for users of different skill levels. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram of the locking knob structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the outwardly convex bending structure of the flexible structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the concave bending structure of the flexible structure of this utility model.

[0022] In the diagram: 1. Handle; 2. Connecting rod; 201. Sliding groove; 202. Connecting plate; 203. Semicircular block; 204. Limit bolt; 205. Locking nut; 206. Locking knob; 3. First connecting block; 301. Second connecting block; 302. Blade. Detailed Implementation

[0023] 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 some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5As shown, a plastic structure suitable for coating uneven surfaces includes a handle 1. The handle 1 is mainly used by the operator to grip, providing stability and comfort during operation. A connecting rod 2 is rotatably connected to the inner cavity of the handle 1, and a flexible structure is rotatably connected to the surface of the connecting rod 2. A sliding groove 201 is formed on the surface of the handle 1, and a connecting plate 202 is slidably connected to the inner cavity of the handle 1. The connecting plate 202 is connected to a semi-circular block 203 to transmit movement and pressing actions. The semi-circular block is fixedly connected to the bottom end of the connecting plate 202. 203. A semi-circular block 203 is set to compress the bendable structure, causing it to bend. A limit bolt 204 is fixedly connected to the surface of the connecting plate 202. A locking nut 205 is rotatably connected to the surface of the limit bolt 204. The locking nut 205 is mainly used to fix the position of the connecting plate 202 and the semi-circular block 203, ensuring the bending state of the bendable structure. A locking knob 206 is threadedly connected to the surface of the handle 1 and passes through the connecting rod 2. The locking knob 206... The connecting rod 2 is used to lock the flexible structure and keep it in a parallel state. It is suitable for coating operations on smooth surfaces. The flexible structure includes three first connecting blocks 3 and two second connecting blocks 301. The inner cavity of the second connecting block 301 is rotatably connected to the surface of the first connecting block 3 to achieve multi-angle bending. The bottom ends of the first connecting block 3 and the second connecting block 301 are fixedly connected to the blades 302. The rotatable connection between the connecting rod 2 and the handle 1 adopts a bearing structure to improve the rotation flexibility. The surface of the handle 1 is provided with anti-slip texture to improve grip stability. The locking knob 206 is a plastic knob with anti-slip texture on its surface for easy operation. The rotatable connection between the connecting rod 2 and the flexible structure adopts a snap-on design for easy quick installation and disassembly. The flexible structure is a highly elastic plastic flexible structure that can provide sufficient support while maintaining flexibility. The locking knob 206 is located on the surface of the connecting rod 2. The locking and releasing of the connecting rod 2 is achieved by rotating the locking knob 206. The locking nut 205 between the limit bolt 204 and the connecting plate 202 adopts a threaded structure for easy manual adjustment of tightness.

[0025] When working on a convex surface, the user holds handle 1, first unscrews the locking knob 206, and then fits the flexible structure against the convex surface. At this time, the convex surface will squeeze the flexible structure, causing it to bend inward. The inward bending of the flexible structure and the blade 302 enable it to fit against the convex surface, ensuring that the coating material is evenly pressed.

[0026] When working on a concave surface, the user holds handle 1, first unscrews the locking knob 206, then loosens the locking nut 205, pushes the limiting bolt 204, causing the connecting plate 202 to move the semi-circular block 203 downward. During the downward movement of the semi-circular block 203, it squeezes the flexible structure, causing it to bend outward. Then, the locking nut 205 is tightened, so that the locking nut 205 limits the connecting plate 202 and the semi-circular block 203, maintaining the outward convex state of the flexible structure. At this time, the outward convex bending of the flexible structure and the blade 302 enable it to fit tightly against the concave surface, ensuring that the coating material is evenly pressed.

[0027] When working on a smooth surface, the user holds handle 1 and turns the locking knob 206 back to lock the linkage 2. At the same time, the user pushes the limit bolt 204, causing the connecting plate 202 to move the semi-circular block 203 downward, which supports the top of the flexible structure. At this time, the flexible structure remains in a parallel state, which is suitable for coating operations on smooth surfaces. The user operates by holding handle 1 to make the flexible structure drive the blade 302 to evenly press the coating material, ensuring that the surface is flat and smooth.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic structure that is easy to coat with films on uneven surfaces, comprising: Handle (1); The handle (1) is characterized in that: a connecting rod (2) is rotatably connected to the inner cavity of the handle (1), a bendable structure is rotatably connected to the surface of the connecting rod (2), a sliding groove (201) is provided on the surface of the handle (1), a connecting plate (202) is slidably connected to the inner cavity of the handle (1), a semi-circular block (203) is fixedly connected to the bottom end of the connecting plate (202), a limit bolt (204) is fixedly connected to the surface of the connecting plate (202), a locking nut (205) is rotatably connected to the surface of the limit bolt (204), and a locking knob (206) is threadedly connected to the surface of the handle (1) and passes through the connecting rod (2).

2. The plastic structure according to claim 1, which is easy to apply a coating to uneven surfaces, is characterized in that: The bendable structure includes three first connecting blocks (3) and two second connecting blocks (301). The inner cavity of the second connecting block (301) is rotatably connected to the surface of the first connecting block (3) to achieve multi-angle bending. The bottom ends of the first connecting block (3) and the second connecting block (301) are both fixedly connected with blades (302).

3. A plastic structure that is easy to coat with films on uneven surfaces according to claim 1, characterized in that: The rotatable connection between the connecting rod (2) and the handle (1) adopts a bearing structure.

4. A plastic structure for easy coating of uneven surfaces according to claim 1, characterized in that: The handle (1) has an anti-slip texture on its surface, and the locking knob (206) is a plastic knob with an anti-slip texture on its surface.

5. A plastic structure for easy coating of uneven surfaces according to claim 1, characterized in that: The rotatable connection between the connecting rod (2) and the flexible structure adopts a snap-fit ​​design.

6. A plastic structure for easy coating of uneven surfaces according to claim 1, characterized in that: The flexible structure is a highly elastic plastic flexible structure.

7. A plastic structure for easy coating of uneven surfaces according to claim 1, characterized in that: The locking knob (206) is located on the surface of the connecting rod (2). The locking and releasing of the connecting rod (2) can be achieved by rotating the locking knob (206). The locking nut (205) between the limiting bolt (204) and the connecting plate (202) adopts a threaded structure.