Novel closing-up line

Abstract

The utility model provides a novel closing-up line. The novel closing-in line comprises a closing-in line body, and the closing-in line body is provided with a V-shaped protruding structure, a limiting rib, an upper fixing rib and an assembly type wallboard installation position. The V-shaped convex structure is arranged at the bottom of the closing-in line body; the limiting rib is arranged on the side portion of the closing-in line body, is adjacent to the fabricated wall plate and is used for limiting the width of the decorative groove and providing limiting support; the upper fixing rib is arranged at the top of the shell nosing line body and is used for fixing the shell nosing line body on the upper-layer gypsum board through a fastener; a cavity used as the assembly type wallboard installation position is formed in the side, opposite to the lower layer gypsum board, of the assembly type wallboard installation position, the limiting rib and the upper fixing rib. The novel closing-in line is convenient and fast to install, gaps at the joints are uniform, loosening, falling and cracking are not prone to occurring, and the attractiveness and durability of a closing-in structure are improved.

Description

Technical Field

[0001] This application relates to the field of building materials technology, and in particular to a novel edge trim. Background Technology

[0002] With the widespread application of prefabricated decoration technology, prefabricated wall panels, as a high-efficiency and environmentally friendly interior wall decoration material, have been widely adopted in the decoration market. At the junction of prefabricated wall panels and gypsum board ceilings, the two commonly used methods are: one is to use U-shaped moldings for finishing; the other is to use sealant to fill the joint. However, both of these solutions have significant drawbacks in practical use.

[0003] Specifically, when using U-shaped moldings for finishing, due to construction errors or the expansion and contraction of the materials themselves, large and uneven gaps often occur. Furthermore, the joints of the moldings are prone to loosening or detachment, affecting the overall aesthetics and stability. While using sealant to fill the gaps is relatively simple, the sealant is prone to aging and cracking, leading to fissures at the joints, further impacting the decorative effect and lifespan. These problems are quite common in actual renovations and have not yet been effectively resolved. Summary of the Invention

[0004] In view of this, the present application provides a novel finishing trim to solve the problems of uneven gaps, easy loosening and falling off, and easy cracking at the junction of prefabricated wall panels and gypsum board ceilings in the prior art.

[0005] This application provides a novel finishing trim, comprising: a finishing trim body, the finishing trim body having a V-shaped protrusion structure, a limiting rib, an upper fixing rib, and a prefabricated wall panel mounting position; the V-shaped protrusion structure is located at the bottom of the finishing trim body for engaging and fixing with the lower gypsum board and forming a cavity gap; the limiting rib is located on the side of the finishing trim body, adjacent to the prefabricated wall panel, for limiting the width of the decorative groove and providing limiting support; the upper fixing rib is located at the top of the finishing trim body for fixing the finishing trim body to the upper gypsum board by fasteners; and the prefabricated wall panel mounting position, a cavity is formed between the limiting rib and the upper fixing rib on the side opposite to the lower gypsum board for serving as a prefabricated wall panel mounting position.

[0006] In one possible implementation, the V-shaped protrusion structure is configured as a V-shape extending longitudinally at the bottom, and the V-shaped protrusion structure interlocks with the lower gypsum board to form a cavity gap for filling putty powder.

[0007] In one possible implementation, the limiting rib is a long strip structure, and the thickness and length of the limiting rib are distributed along the length direction of the closing line body. The surface of the limiting rib is flat to contact the prefabricated wall panel.

[0008] In one possible implementation, the limiting rib is adjacent to the upper part of the prefabricated wall panel and limits the installation height of the prefabricated wall panel, so that the top of the prefabricated wall panel is slightly higher than the upper part of the limiting rib, so as to form a decorative groove between the prefabricated wall panel and the finishing strip body.

[0009] In one possible implementation, the upper fixing rib is fixed to the upper gypsum board with screws, and the upper gypsum board is installed by means of structural ceiling joists.

[0010] In one possible implementation, a misaligned structure is formed between the limiting rib on the end trim body and the upper fixing rib. The cavity formed between the limiting rib and the upper fixing rib is used to accommodate the prefabricated wall panel and increase the installation height of the prefabricated wall panel.

[0011] In one possible implementation, the top of the upper fixing rib is provided with a flat surface for close contact with the bottom surface of the upper gypsum board.

[0012] In one possible implementation, the edge of the lower gypsum board is inserted into the groove of the V-shaped protrusion structure, and the edge of the upper gypsum board covers the upper fixing rib.

[0013] In one possible implementation, the structural ceiling joists are L-shaped or T-shaped metal joist structures. The structural ceiling joists are fixed to the upper gypsum board with fasteners and serve as load-bearing supports connecting the upper gypsum board to the finishing trim.

[0014] In one possible implementation, the trim line body adopts a one-piece molded structure, and the material of the trim line body is a rigid material.

[0015] The novel finishing trim provided in this application includes: a finishing trim body, which has a V-shaped protrusion structure, a limiting rib, an upper fixing rib, and a prefabricated wall panel mounting position; the V-shaped protrusion structure is located at the bottom of the finishing trim body and is used to snap and fix it to the lower gypsum board to form a cavity gap; the limiting rib is located on the side of the finishing trim body, adjacent to the prefabricated wall panel, and is used to limit the width of the decorative groove and provide limiting support; the upper fixing rib is located at the top of the finishing trim body and is used to fix the finishing trim body to the upper gypsum board by fasteners; the prefabricated wall panel mounting position is formed between the limiting rib and the upper fixing rib on the side opposite to the lower gypsum board, forming a cavity for serving as a prefabricated wall panel mounting position. The novel finishing trim of this application is easy to install, has uniform gaps at the joints, is not easy to loosen or fall off, and is not easy to crack, thus improving the aesthetics and durability of the finishing structure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the novel finishing line provided in the embodiments of this application;

[0018] Figure 2 This is an installation diagram of the novel finishing strip provided in the embodiments of this application.

[0019] The following are the reference numerals in the attached drawings: 1. Finishing line body; 11. V-shaped protrusion structure; 12. Limiting rib; 13. Upper fixing rib; 14. Prefabricated wall panel installation position; 2. Lower gypsum board; 3. Prefabricated wall panel; 4. Upper gypsum board; 5. Structural ceiling joists. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0021] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] As described in the background section, with the application and popularization of prefabricated decoration, prefabricated wall panels are now widely used as interior wall decoration materials in the domestic decoration market. At the junction with the gypsum board ceiling, the current finishing methods are mostly U-shaped trim or adhesive sealing. Both U-shaped trim and adhesive sealing often have large gaps and are prone to cracking.

[0026] In view of the problems existing in the prior art, in order to solve the problem of uneven joints or gaps at the junction of prefabricated wall panels and gypsum board ceilings during the installation of prefabricated wall panels in interior decoration, this application discloses a new type of finishing strip that can be used to prevent gypsum board cracking and achieve a groove effect at the junction of prefabricated wall panels and gypsum board ceilings. This strip can be used for groove finishing on the top of prefabricated wall panels to prevent gypsum board cracking. It offers high efficiency and aesthetics in connecting prefabricated wall panels with traditional gypsum board ceilings, while also preventing side cracking of the gypsum board ceiling.

[0027] The structure of the novel finishing strip of this application can be a decorative groove for fixing the prefabricated wall panel and the expected finished product of the gypsum board ceiling. At the same time, it can make a gap reserved at the groove at the junction of the gypsum board ceiling, so that the surface of the gypsum board ceiling can be filled with compact putty powder and latex paint, avoiding cracking problems.

[0028] The optional embodiments of this application are described in detail below with reference to the accompanying drawings.

[0029] Please see Figures 1 to 2, Figure 1 This is a schematic diagram of the structure of the novel finishing line provided in the embodiments of this application. Figure 2 This is a schematic diagram illustrating the installation of the novel finishing trim provided in this application. For example... Figures 1 to 2 As shown, this application provides a novel finishing trim. The novel finishing trim includes: a finishing trim body 1, which has a V-shaped protrusion structure 11, a limiting rib 12, an upper fixing rib 13, and a prefabricated wall panel mounting position 14; the V-shaped protrusion structure 11 is located at the bottom of the finishing trim body 1 and is used to snap and fix it with the lower gypsum board 2 to form a cavity gap; the limiting rib 12 is located on the side of the finishing trim body 1, adjacent to the prefabricated wall panel 3, and is used to limit the width of the decorative groove and provide limiting support; the upper fixing rib 13 is located at the top of the finishing trim body 1 and is used to fix the finishing trim body 1 to the upper gypsum board 4 by fasteners; the prefabricated wall panel mounting position 14 is formed between the limiting rib 12 and the upper fixing rib 13 on one side relative to the lower gypsum board 2, serving as the prefabricated wall panel mounting position 14.

[0030] In some embodiments, the V-shaped protrusion structure 11 is configured as a V-shaped shape extending longitudinally at the bottom, and the V-shaped protrusion structure 11 is engaged with the lower gypsum board 2 to form a cavity gap for filling putty powder.

[0031] Specifically, when the edge of the lower plasterboard 2 is inserted into the V-shaped protrusion structure 11, the bevels on both sides of the V-shaped protrusion structure 11 exert a certain clamping force on the edge of the lower plasterboard 2 to ensure its stable positioning. Simultaneously, after the V-shaped protrusion structure 11 engages with the lower plasterboard 2, a cavity gap is formed between them for filling with putty powder. This cavity gap provides space for subsequent putty powder filling, which, after filling, allows the edge of the lower plasterboard 2 and the bottom of the finishing line body 1 to form a flat and seamless decorative surface, effectively avoiding decorative defects caused by uneven gaps or cracks.

[0032] Furthermore, the V-shaped protrusion structure 11 and the finishing line body 1 are integrally molded, and the overall design has high strength and stability, which can meet the requirements of resistance to deformation and aging under long-term use. Through the design of the V-shaped protrusion structure 11, not only is the quick snap-fit ​​installation of the lower gypsum board 2 achieved, but the aesthetics of the decorative surface and the convenience of construction are also guaranteed.

[0033] According to the structural design of the above embodiment, by designing the V-shaped protrusion structure 11 as a V-shaped shape extending longitudinally at the bottom, and utilizing its interlocking structure with the lower gypsum board 2, the cracking problem caused by large gaps or insecure fixing in the traditional finishing scheme can be effectively solved, while improving construction efficiency and decorative effect.

[0034] In some embodiments, the limiting rib 12 is a long strip structure, and the thickness and length of the limiting rib 12 are distributed along the length direction of the closing line body 1. The surface of the limiting rib 12 is flat to contact the prefabricated wall panel 3.

[0035] Specifically, the outer surface of the limiting rib 12 is designed as a straight structure, and its surface is in close contact with the side edge of the prefabricated wall panel 3. When the prefabricated wall panel 3 is installed onto the finishing strip body 1, the limiting rib 12 can effectively limit the lateral displacement of the prefabricated wall panel 3, thereby ensuring the accurate installation position of the wall panel. In addition, the limiting rib 12 limits the width of the decorative groove through its stable supporting function, so that the decorative groove forms an aesthetically pleasing and uniform groove effect between the wall panel and the finishing strip.

[0036] Meanwhile, the limiting rib 12 is integrally formed with the finishing strip body 1, giving the limiting rib 12 high strength and durability. Even under long-term use or external force, it can still maintain the limiting and supporting function of the wall panel. Through the elongated design of the limiting rib 12, its length is distributed along the entire length of the finishing strip body 1, which can ensure the stable support of the entire prefabricated wall panel 3 in the longitudinal direction, thereby effectively avoiding the problems of uneven local installation or inconsistent groove width.

[0037] According to the structural design of the above embodiment, the long strip structure design of the limiting rib 12 and its flat surface in contact with the prefabricated wall panel 3 can provide a good limiting support effect, and can also limit the width and shape of the decorative groove, thereby improving the uniformity of the decorative effect and the reliability of construction.

[0038] In some embodiments, the limiting rib 12 is adjacent to the upper part of the prefabricated wall panel 3 and limits the installation height of the prefabricated wall panel 3, so that the top of the prefabricated wall panel 3 is slightly higher than the upper part of the limiting rib 12, so as to form a decorative groove between the prefabricated wall panel 3 and the finishing line body 1.

[0039] Specifically, the upper edge of the limiting rib 12 serves as the height positioning reference for the prefabricated wall panel 3. When the prefabricated wall panel 3 is in close contact with the limiting rib 12, the limiting rib 12 can effectively support and restrict the vertical position of the wall panel, preventing the wall panel from shifting downwards or becoming unstable. At the same time, by designing the top of the prefabricated wall panel 3 to be slightly higher than the upper edge of the limiting rib 12, the width and depth of the decorative groove are ensured, giving the groove a clear and aesthetically pleasing visual effect.

[0040] Furthermore, since the limiting rib 12 is integrally formed with the finishing strip body 1, its flat surface not only provides stable contact with the prefabricated wall panel 3, but also enhances the overall connection strength between the wall panel and the finishing strip body 1. The shape and position of the decorative groove can thus maintain long-term uniformity and consistency, effectively improving the decorative effect and overall stability of the prefabricated wall panel and the finishing strip.

[0041] According to the structural design of the above embodiment, the design of limiting the upper position of the prefabricated wall panel 3 by the limiting rib 12 and the structural configuration of the top of the wall panel being slightly higher than the limiting rib 12, the uniformity and aesthetics of the decorative groove are achieved, while improving the installation stability of the prefabricated wall panel 3.

[0042] In some embodiments, the upper fixing rib 13 is fixed to the upper gypsum board 4 by screws, and the upper gypsum board 4 is supported and installed by the structural ceiling joists 5.

[0043] Specifically, the top of the upper fixing rib 13 is designed as a flat surface to ensure a tight fit with the bottom surface of the upper gypsum board 4. During installation, the upper gypsum board 4 is passed through the upper fixing rib 13 and further fixed to the structural ceiling joists 5 using screws, thus achieving a stable installation of both the upper gypsum board 4 and the finishing trim body 1. The edge of the upper gypsum board 4 covers the top of the upper fixing rib 13, making the connection between the finishing trim and the upper gypsum board 4 tighter and avoiding gap problems caused by loose connections in traditional finishing methods.

[0044] Furthermore, the upper gypsum board 4 is supported and installed via structural ceiling joists 5. These structural ceiling joists 5 are typically L-shaped or T-shaped metal joists, providing robust load-bearing support for the upper gypsum board 4 and the finishing trim body 1, ensuring the strength and stability of the entire installation structure. Through this connection method, the upper fixing rib 13 not only secures the finishing trim body 1 but also, through its combined action with the upper gypsum board 4 and the structural ceiling joists 5, achieves a stable connection for the overall ceiling structure.

[0045] According to the structural design of the above embodiment, the cooperation design of the upper fixing rib 13 with the upper gypsum board 4 and the structural ceiling keel 5 not only improves the installation stability of the finishing line, but also ensures that the connection between the upper gypsum board 4 and the finishing line is flat and beautiful, further optimizing the overall decorative effect and structural stability.

[0046] In some embodiments, a misaligned structure is formed between the limiting rib 12 on the end trim body 1 and the upper fixing rib 13, and the cavity formed between the limiting rib 12 and the upper fixing rib 13 is used to accommodate the prefabricated wall panel 3 and increase the installation height of the prefabricated wall panel 3.

[0047] Specifically, the limiting rib 12 is located on the side of the finishing strip body 1, adjacent to the upper edge of the prefabricated wall panel 3. The straight surface of the limiting rib 12 fits against the side of the prefabricated wall panel 3, providing lateral support for the wall panel and preventing lateral displacement. Meanwhile, the upper fixing rib 13 is located at the top of the finishing strip body 1, forming an open cavity structure with the limiting rib 12. After the upper end of the prefabricated wall panel 3 is inserted into this cavity, the limiting rib 12 provides support to its side, and the upper fixing rib 13 restricts and increases its installation height.

[0048] Under this staggered structural design, the top position of the prefabricated wall panel 3 is raised, making it slightly higher than the upper edge of the limiting rib 12. This height difference design ensures the stability of the prefabricated wall panel 3 on the one hand, and creates a uniform decorative groove between the top of the prefabricated wall panel 3 and the finishing line body 1 on the other hand, further enhancing the overall aesthetics.

[0049] In addition, the limiting rib 12 and the upper fixing rib 13 are integrally formed with the finishing line body 1. Their staggered structure not only enhances the overall strength and stability of the finishing line, but also facilitates the rapid installation of the prefabricated wall panel 3, avoiding the problem of poor decorative effect caused by mismatch in height or position in traditional installation.

[0050] According to the structural design of the above embodiment, the staggered structure design between the limiting rib 12 and the upper fixing rib 13 realizes the stable support and height increase of the prefabricated wall panel 3, while ensuring the consistency and aesthetics of the decorative groove, thereby optimizing the installation effect of the prefabricated wall panel and the stability of the overall connection structure.

[0051] In some embodiments, the top of the upper fixing rib 13 is provided with a flat surface, which is used to fit tightly against the bottom surface of the upper gypsum board 4.

[0052] Specifically, during installation, the flat surface of the upper fixing rib 13 provides a stable support contact area. When the upper gypsum board 4 is installed on the trim body 1, its bottom surface fits tightly against the flat surface of the upper fixing rib 13, forming a stable and firm connection. The flat surface design effectively avoids problems such as unstable gypsum board installation or loose connections caused by uneven surfaces or insufficient contact area.

[0053] Furthermore, the flat surface design not only enhances the connection stability between the upper fixing rib 13 and the upper gypsum board 4, but also ensures the flatness of the overall connection between the upper gypsum board 4 and the finishing strip body 1. This ensures a smooth and aesthetically pleasing surface finish during subsequent putty application and decorative construction, avoiding unevenness or gaps that may occur after construction.

[0054] According to the structural design of the above embodiment, by setting a flat surface on the top of the upper fixing rib 13 and closely fitting it with the bottom surface of the upper gypsum board 4, the connection stability and surface flatness during the installation process are achieved, providing a good foundation for the subsequent decorative effect, while improving the reliability and aesthetics of the overall structure.

[0055] In some embodiments, the edge of the lower gypsum board 2 is inserted into the slot of the V-shaped protrusion structure 11, and the edge of the upper gypsum board 4 covers the upper fixing rib 13.

[0056] Specifically, the edge of the lower plasterboard 2 is inserted into the groove of the V-shaped protrusion structure 11. The V-shaped protrusion structure 11 is designed with a V-shape inside, and its inclined surfaces on both sides apply clamping force to the edge of the lower plasterboard 2, thereby allowing the lower plasterboard 2 to be stably fixed at the bottom position of the finishing line body 1. At the same time, after the V-shaped protrusion structure 11 and the lower plasterboard 2 are engaged, a cavity gap is formed between them. This cavity is easy to fill with putty powder, thereby achieving the sealing of the gap and a smooth decorative effect.

[0057] The edge of the upper gypsum board 4 covers the top of the upper fixing rib 13. The top of the upper fixing rib 13 has a flat surface. The upper gypsum board 4 is fastened to the upper fixing rib 13 with screws, and the structural ceiling joists 5 provide load-bearing support. The tight fit between the edge of the upper gypsum board 4 and the upper fixing rib 13 ensures the stability of the connection, while also guaranteeing the overall flatness and aesthetics of the ceiling.

[0058] According to the structural design of the above embodiment, by inserting the edge of the lower gypsum board 2 into the V-shaped protrusion structure 11 and the edge of the upper gypsum board 4 covering the upper fixing rib 13, not only is a stable connection between the finishing line and the upper and lower gypsum boards achieved, but the structural integrity and installation efficiency of the finishing line are also ensured, further improving the decorative effect and crack resistance of the connection between the wall panel and the ceiling.

[0059] In some embodiments, the structural ceiling keel 5 is an L-shaped or T-shaped metal keel structure. The structural ceiling keel 5 is fixed to the upper gypsum board 4 by fasteners and serves as a load-bearing support for connecting the upper gypsum board 4 to the finishing line body 1.

[0060] Specifically, the structural ceiling joists 5 are arranged at the predetermined installation positions on the ceiling, and their horizontal support surfaces are used to support the weight of the upper gypsum board 4. The edges of the upper gypsum board 4 are fixed to the structural ceiling joists 5 with screws or other fasteners, ensuring a firm connection between them. Through the supporting role of the joist structure, the vertical stability of the upper gypsum board 4 is ensured, preventing deformation or detachment due to gravity or external forces.

[0061] Furthermore, the structural ceiling joists 5 indirectly support and stabilize the top position of the finishing trim body 1. By attaching and fixing the upper fixing ribs 13 of the finishing trim body 1 to the edge of the upper gypsum board 4, the joist structure effectively transfers the weight of the upper gypsum board 4 and the finishing trim body 1, thus providing overall load-bearing support. This design not only improves the installation strength of the ceiling and finishing trim but also makes the entire connection structure safer and more reliable.

[0062] According to the structural design of the above embodiment, by using L-shaped or T-shaped structural ceiling keel 5 as load-bearing support components, it is possible to achieve a stable installation between the upper gypsum board 4 and the finishing line body 1, and enhance the overall structural stability at the junction of the ceiling and the wall panel, thereby effectively improving the installation effect and service life.

[0063] In some embodiments, the trim body 1 adopts an integral molding structure, and the material of the trim body 1 is a rigid material.

[0064] Specifically, the finishing trim body 1 is formed in one piece using a mold, avoiding structural defects caused by loose or uneven connections in traditional spliced ​​structures. The one-piece molding design ensures the overall structural integrity of the finishing trim body 1, giving it higher resistance to deformation and longer service life, especially maintaining stable performance under long-term stress or large temperature and humidity changes.

[0065] In an optional embodiment, the trim body 1 is made of a rigid material, such as aluminum alloy, stainless steel, or other high-strength composite materials. These materials not only possess excellent mechanical properties, such as high compressive and tensile strength, but also good corrosion resistance and weather resistance, enabling them to maintain good performance under complex construction conditions. Furthermore, the rigidity of the material allows the trim to withstand the pressure of construction tools and the fixing force of screws during installation, further enhancing its reliability.

[0066] According to the structural design of the above embodiment, by adopting an integral molding structure and rigid materials, the finishing line body 1 can be accurately installed during construction and provide stable support. At the same time, it avoids cracking and deformation problems caused by insufficient strength or loose connection in traditional flexible materials or splicing designs, thereby significantly improving construction efficiency and decorative effect.

[0067] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this application should be included within the scope of protection of this application. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; 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 novel finishing trim, characterized in that, include: The finishing trim body is provided with a V-shaped protrusion structure, a limiting rib, an upper fixing rib, and a prefabricated wall panel installation position. The V-shaped protrusion structure is located at the bottom of the finishing line body and is used to snap and fix it with the lower gypsum board to form a cavity gap. The limiting rib is disposed on the side of the finishing line body, adjacent to the prefabricated wall panel, and is used to limit the width of the decorative groove and provide limiting support. The upper fixing rib is located at the top of the trim body and is used to fix the trim body to the upper gypsum board by fasteners. In the prefabricated wall panel installation position, a cavity is formed on the side opposite to the lower gypsum board between the limiting rib and the upper fixing rib to serve as the prefabricated wall panel installation position.

2. The novel finishing line according to claim 1, characterized in that, The V-shaped protrusion structure is configured as a V-shape extending longitudinally at the bottom. After the V-shaped protrusion structure is engaged with the lower gypsum board, it forms a cavity gap for filling putty powder.

3. The novel finishing line according to claim 1, characterized in that, The limiting rib is a long strip structure. The thickness and length of the limiting rib are distributed along the length direction of the closing line body. The surface of the limiting rib is flat to contact the prefabricated wall panel.

4. The novel finishing line according to claim 3, characterized in that, The limiting rib is adjacent to the upper part of the prefabricated wall panel and restricts the installation height of the prefabricated wall panel, so that the top of the prefabricated wall panel is slightly higher than the upper part of the limiting rib, so as to form a decorative groove between the prefabricated wall panel and the finishing line body.

5. The novel finishing line according to claim 1, characterized in that, The upper fixing rib is fixed to the upper gypsum board with screws, and the upper gypsum board is installed with the support of the structural ceiling keel.

6. The novel finishing line according to claim 1, characterized in that, The limiting rib and the upper fixing rib on the closing line body form a misaligned structure. The cavity formed between the limiting rib and the upper fixing rib is used to accommodate the prefabricated wall panel and increase the installation height of the prefabricated wall panel.

7. The novel finishing line according to claim 1, characterized in that, The top of the upper fixing rib is provided with a flat surface, which is used to fit tightly against the bottom surface of the upper gypsum board.

8. The novel finishing line according to claim 1, characterized in that, The edge of the lower gypsum board is inserted into the groove of the V-shaped protrusion structure, and the edge of the upper gypsum board covers the upper fixing rib.

9. The novel finishing trim according to claim 5, characterized in that, The structural ceiling keel is an L-shaped or T-shaped metal keel structure. The structural ceiling keel is fixed to the upper gypsum board with fasteners and serves as a load-bearing support for connecting the upper gypsum board to the finishing strip body.

10. The novel finishing line according to claim 1, characterized in that, The trim strip body adopts a one-piece molding structure, and the material of the trim strip body is a rigid material.

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