Plug-in type bathroom wallboard external corner connecting structure
By using a plug-in bathroom wall panel corner connection structure with precision locking and double waterproofing design, the complexity of construction and leakage problems in bathroom wall panel corner installation are solved, achieving efficient and reversible installation and renovation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEYI HOUSING (BEIJING) TECH DEV CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-16
AI Technical Summary
The current installation of external corners of bathroom wall panels relies on wet-laying technology, which is complex to construct, difficult to control the angle, prone to water seepage, and damages the substrate during disassembly, making it difficult to meet waterproofing requirements and allow for flexible modifications.
It adopts a plug-in bathroom wall panel external corner connection structure, including first and second connectors, with plug interface and locking structure, combined with waterproof groove and waterproof strip to achieve precise locking and double waterproof design, and supports reversible disassembly and assembly.
Simplify the construction process, reduce material waste, ensure long-term sealing, eliminate misalignment issues, support non-destructive retrofitting, improve construction quality, and extend service life.
Smart Images

Figure CN224363580U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of prefabricated building equipment technology, specifically to a plug-in bathroom wall panel external corner connection structure. Background Technology
[0002] Currently, the installation of external corners in bathroom wall panels mainly relies on wet-laying techniques, using cement mortar to bond tiles to achieve corner treatment. This method has significant drawbacks: the construction process requires skilled workers to operate manually, the angle of the external corner is difficult to control and hollow spots are prone to occur, especially in bathroom environments where humidity varies greatly, traditional grout materials shrink and can easily lead to water seepage at the joints. In addition, the on-site cutting of tiles has a high wastage rate, subsequent renovations require destructive removal, and the materials cannot be recycled, which violates the concept of green building.
[0003] While prefabricated wall panels have improved efficiency in recent years, their corner connection structures remain immature. Existing snap-fit connectors cannot allow for fine-tuning during installation, resulting in large gaps at the corners, significant misalignment of wall panels, and a lack of effective sealing design, making it difficult to meet the waterproofing requirements of bathroom spaces. Most connection methods damage the wall panel substrate during disassembly and cannot be reverse-engineered, greatly limiting the flexibility of bathroom renovations. Utility Model Content
[0004] In view of the above-mentioned technical problems in related technologies, this utility model proposes a plug-in bathroom wall panel external corner connection structure, which can overcome the above-mentioned shortcomings of the prior art.
[0005] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows:
[0006] A plug-in bathroom wall panel external corner connection structure;
[0007] The plug-in bathroom wall panel corner connection structure includes a first connector and a second connector fixed to the sides of the horizontal and vertical wall panels, respectively. The first connector and the second connector are respectively provided with a first insertion interface and a second insertion interface facing each other. The first insertion interface is provided with a wall panel fixing component and a plug-in component that are longitudinally staggered by screws. The interface of the first insertion interface and the second insertion interface are both provided with a locking structure, and the cross-section of the first insertion interface and the second insertion interface is wider at the belly and narrower at the mouth. The middle part of the plug-in component is provided with a locking groove adapted to the locking structure. The free ends of the wall panel fixing component and the plug-in component are connected and fixed in both directions through the second insertion interface.
[0008] Furthermore, both the transverse wall panel and the longitudinal wall panel include a wall panel surface layer disposed on the outer side and a wall panel inner layer disposed on the inner side. The right side wall of the first connector is fixedly connected to the left side wall of the wall panel inner layer of the transverse wall panel, and the left side wall of the first connector abuts against the right side wall of the wall panel surface layer of the longitudinal wall panel. The bottom wall of the first connector overlaps the top wall of the second connector.
[0009] Furthermore, the sidewall of the first connector and the bottom wall of the second connector are both consistent with the thickness of the inner layer of the wall panel; the wall panel surface layer of the transverse wall panel is perpendicular to the wall panel surface layer of the longitudinal wall panel.
[0010] Furthermore, the first side and the second side of the wall panel surface layer form a 144-degree angle, and the wall panel surface layer of the transverse wall panel and the wall panel surface layer of the longitudinal wall panel form a 2-degree angle.
[0011] Furthermore, the bottom of the first connector and the top of the second connector are respectively provided with a first inner waterproof groove, a first outer waterproof groove, a second inner waterproof groove, and a second outer waterproof groove facing each other.
[0012] Furthermore, a waterproof strip is provided inside the cavity formed by the first inner waterproof groove and the second inner waterproof groove; an outer waterproof strip is provided inside the cavity formed between the first outer waterproof groove and the second outer waterproof groove.
[0013] Furthermore, anti-slip wave sections are provided on the top wall of the first connector and the left side wall of the second connector.
[0014] Furthermore, the first connector has a first structural reinforcement cavity and a first spare fixing cavity on its left and right sides, respectively, and the second connector has a second structural reinforcement cavity and a second spare fixing cavity on its upper left and bottom sides, respectively.
[0015] Furthermore, the wall panel fastener includes a through portion and a first side support portion and a second side support portion. The width of the through portion is adapted to the width of the first insertion interface and the second insertion interface. The first side support portion and the second side support portion are vertically arranged and used to guide the riveting of the first connector and the second connector.
[0016] Furthermore, the first and second connectors are initially riveted by horizontal insertion of the wall panel fasteners and then fixed by vertical insertion of the connectors.
[0017] The beneficial effects of this utility model are as follows: Through the optimized and improved design of the plug-in structure and the multiple sealing system, the wall panel installation process is greatly simplified, the construction speed is significantly improved, and material waste is reduced; the double waterproof design effectively solves the persistent problem of leakage in the bathroom environment and ensures long-term sealing reliability; the precision locking mechanism, combined with the angle-optimized structure, achieves high-precision wall panel splicing and completely eliminates the problem of misalignment; the reversible disassembly and assembly design supports non-destructive modification, and the lightweight structure reduces space occupation, thereby achieving the beneficial effects of improving construction quality, extending service life, and reducing overall costs. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall structure of a plug-in bathroom wall panel corner connection structure according to an embodiment of the present utility model.
[0020] Figure 2 This is a partial detail view of point A in body 1 of a plug-in bathroom wall panel external corner connection structure according to an embodiment of the present utility model;
[0021] Figure 3 This is a schematic diagram of the overall structure of some components of a plug-in bathroom wall panel corner connection structure according to an embodiment of the present utility model.
[0022] Figure 4 This is a schematic diagram of the overall structure of a plug-in bathroom wall panel corner connection structure according to an embodiment of the present utility model, showing the disassembled state of some components.
[0023] Figure 5 This is a schematic diagram of the overall structure of the first connector of a plug-in bathroom wall panel corner connection structure according to an embodiment of the present utility model;
[0024] Figure 6 This is a schematic diagram of the overall structure of the second connector of a plug-in bathroom wall panel corner connection structure according to an embodiment of the present utility model;
[0025] Figure 7 This is a schematic diagram of the overall structure of a wall panel fastener with a plug-in bathroom wall panel external corner connection structure according to an embodiment of the present utility model;
[0026] Figure 8 This is a schematic diagram of the overall structure of the plug-in connector of the plug-in type bathroom wall panel external corner connection structure according to an embodiment of the present utility model;
[0027] Figure 9 This is a schematic diagram of the overall structure of a waterproof adhesive strip for a plug-in bathroom wall panel corner connection structure according to an embodiment of the present utility model;
[0028] In the diagram: 1. Wall panel surface layer; 2. Wall panel inner layer; 3. First connector; 4. Second connector; 5. Wall panel fastener; 6. Insert connector; 9. First inner waterproof groove; 10. Waterproof strip; 11. Main body; 12. First insertion interface; 13. Second insertion interface; 14. First structural reinforcement cavity; 15. Second structural reinforcement cavity; 16. First spare fixing cavity; 17. Second spare fixing cavity; 18. Anti-slip wave section; 19. Second inner waterproof groove; 20. First outer waterproof groove; 21. Second outer waterproof groove; 23. Locking groove; 24. Through section; 25. First side support section; 26. Second side support section; 27. First side edge of wall panel surface layer; 28. Second side edge of wall panel surface layer. Detailed Implementation
[0029] 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 skilled in the art are within the protection scope of the present utility model.
[0030] It should be understood that in the description of the embodiments of this utility model, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model 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. Therefore, they should not be construed as limitations on the embodiments of this utility model. 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this utility model, "several" means two or more, unless otherwise explicitly specified.
[0031] like Figure 1-9As shown in the embodiment of this utility model, a plug-in bathroom wall panel corner connection structure includes a first connector 3 and a second connector 4 respectively fixed to the sides of a horizontal wall panel and a vertical wall panel. The first connector 3 and the second connector 4 are respectively provided with a first plug-in interface 12 and a second plug-in interface 13 facing each other. The first plug-in interface 12 is provided with a wall panel fixing member 5 and a plug-in member 6 longitudinally staggered by screws. The interface portions of the first plug-in interface 12 and the second plug-in interface 13 are both provided with a locking structure, and the cross-section of the first plug-in interface 12 and the second plug-in interface 13 is wider at the belly and narrower at the mouth. The middle part of the plug-in member 6 is provided with a locking groove 23 adapted to the locking structure. The free ends of the wall panel fixing member 5 and the plug-in member 6 are bidirectionally plugged and fixed through the second plug-in interface 13.
[0032] According to an embodiment of the present utility model, a plug-in bathroom wall panel corner connection structure is provided. In a specific embodiment, both the horizontal wall panel and the vertical wall panel include a wall panel surface layer 1 disposed on the outer side and a wall panel inner layer 2 disposed on the inner side. The right side wall of the first connector 3 is fixedly connected to the left side wall of the wall panel inner layer 2 of the horizontal wall panel, and the left side wall of the first connector 3 abuts against the right side wall of the wall panel surface layer 1 of the vertical wall panel. The bottom wall of the first connector 3 overlaps the top wall of the second connector 4.
[0033] According to an embodiment of the present invention, a plug-in bathroom wall panel external corner connection structure is provided. In a specific embodiment, the side wall of the first connector 3 and the bottom wall of the second connector 4 are consistent with the thickness of the inner layer 2 of the wall panel; the wall panel surface layer 1 of the horizontal wall panel is perpendicular to the wall panel surface layer 1 of the vertical wall panel.
[0034] According to an embodiment of the present invention, a plug-in bathroom wall panel external corner connection structure is provided. In a specific embodiment, the first side 27 and the second side 28 of the wall panel surface layer 1 form a 144-degree angle, and the wall panel surface layer 1 of the horizontal wall panel and the wall panel surface layer 1 of the vertical wall panel form a 2-degree angle.
[0035] According to an embodiment of the present utility model, a plug-in bathroom wall panel external corner connection structure is provided, in a specific embodiment, the bottom of the first connector 3 and the top of the second connector 4 are respectively provided with a first inner waterproof groove 9, a first outer waterproof groove 20, a second inner waterproof groove 19, and a second outer waterproof groove 21 facing each other.
[0036] According to an embodiment of the present invention, a plug-in bathroom wall panel external corner connection structure is provided in a specific embodiment, where a waterproof strip 10 is provided in the cavity formed by the first inner waterproof groove 9 and the second inner waterproof groove 19; and an outer waterproof strip is provided in the cavity formed by the first outer waterproof groove 20 and the second outer waterproof groove 21.
[0037] According to an embodiment of the present utility model, a plug-in bathroom wall panel external corner connection structure is provided, in a specific embodiment, the top wall of the first connector 3 and the left side wall of the second connector 4 are both provided with anti-slip wave parts 18.
[0038] According to an embodiment of the present utility model, a plug-in bathroom wall panel external corner connection structure is provided. In a specific embodiment, the first connector 3 is provided with a first structural reinforcement cavity 14 and a first spare fixing cavity 16 on the left and right sides, respectively. The second connector 4 is provided with a second structural reinforcement cavity 15 and a second spare fixing cavity 17 on the upper left and bottom sides, respectively.
[0039] According to an embodiment of the present utility model, a plug-in bathroom wall panel corner connection structure is provided. In a specific embodiment, the wall panel fixing member 5 includes a through part 24, a first side support part 25, and a second side support part 26. The width of the through part 24 is adapted to the width of the first plug-in interface 12 and the second plug-in interface 13. The first side support part 25 and the second side support part 26 are vertically arranged and used to guide the riveting of the first connector 3 and the second connector 4.
[0040] According to an embodiment of the present utility model, a plug-in bathroom wall panel external corner connection structure is provided. In a specific embodiment, the first connector 3 and the second connector 4 are initially riveted by the horizontal insertion of the wall panel fixing member 5, and are fixed by the vertical insertion of the plug-in member 6.
[0041] To facilitate understanding of the above-mentioned technical solutions of this utility model, the following detailed description of the above-mentioned technical solutions of this utility model is provided through specific usage methods.
[0042] In practical use, according to the plug-in bathroom wall panel external corner connection structure described in this utility model, firstly, the first connector is fixed to the side of the horizontal wall panel, and the second connector is fixed to the side of the vertical wall panel, with the two facing each other; during installation, the vertical wall panel is appropriately raised so that the second connector is higher than the first connector, and the wall panel is moved horizontally so that the wall panel fixing part and the plug-in part are aligned with the first plug-in interface; the wall panel is lowered so that the plug-in part is inserted into the second plug-in interface from top to bottom. At this time, the locking groove and the locking structure of the plug-in interface automatically engage to form a stable connection.
[0043] The staggered layout of the wall panel fasteners and connectors enables synchronous insertion and locking without additional adjustments. During the connection process, the overlap between the bottom wall of the first connector and the top wall of the second connector, combined with the guiding effect of the side brace, ensures that the horizontal and vertical wall panels form a slight angle, naturally eliminating installation gaps.
[0044] The dual waterproofing system works simultaneously: the I-shaped waterproof strip in the inner waterproofing groove covers the joints of the wall panels, while the outer waterproofing groove forms a secondary water barrier, effectively preventing water seepage in the bathroom.
[0045] The anti-slip wave section enhances the frictional resistance between the connectors, preventing displacement after insertion.
[0046] If disassembly is required, the wall panel can be separated without damage by reversing the operation. The spare fixing cavity is reserved for future pipeline modifications. The entire installation process requires no complicated tools, greatly reducing the difficulty of construction, while ensuring the straightness of the wall panel splices and long-term sealing.
[0047] In summary, by utilizing the above-mentioned technical solutions of this utility model, and through the optimized and improved design of the plug-in structure and the multiple sealing system, the wall panel installation process is greatly simplified, construction speed is significantly improved, and material waste is reduced. The dual waterproof design effectively solves the persistent problem of leakage in bathroom environments, ensuring long-term sealing reliability. The precision locking mechanism, combined with the angle-optimized structure, achieves high-precision wall panel splicing, completely eliminating misalignment issues. The reversible disassembly and assembly design supports non-destructive retrofitting, and the lightweight structure reduces space occupation, thereby achieving the beneficial effects of improving construction quality, extending service life, and reducing overall costs.
[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A plug-in bathroom wall panel external corner connection structure, characterized in that, The device includes a first connector (3) and a second connector (4) fixed to the sides of the horizontal and vertical wall panels respectively. The first connector (3) and the second connector (4) are respectively provided with a first insertion interface (12) and a second insertion interface (13) facing each other. The first insertion interface (12) is provided with a wall panel fixing component (5) and a plug-in component (6) longitudinally offset by screws. The interface of the first insertion interface (12) and the second insertion interface (13) are both provided with a locking structure, and the cross section of the first insertion interface (12) and the second insertion interface (13) is wide at the belly and narrow at the mouth. The middle part of the plug-in component (6) is provided with a locking groove (23) adapted to the locking structure. The free ends of the wall panel fixing component (5) and the plug-in component (6) are connected and fixed in both directions through the second insertion interface (13).
2. The plug-in bathroom wall panel external corner connection structure according to claim 1, characterized in that, Both the transverse wall panel and the longitudinal wall panel include a wall panel surface layer (1) disposed on the outer side and a wall panel inner layer (2) disposed on the inner side. The right side wall of the first connector (3) is fixedly connected to the left side wall of the wall panel inner layer (2) of the transverse wall panel, and the left side wall of the first connector (3) abuts against the right side wall of the wall panel surface layer (1) of the longitudinal wall panel. The bottom wall of the first connector (3) overlaps the top wall of the second connector (4).
3. The plug-in bathroom wall panel external corner connection structure according to claim 2, characterized in that, The side wall of the first connector (3) and the bottom wall of the second connector (4) are consistent with the thickness of the inner layer (2) of the wall panel; the wall panel surface layer (1) of the transverse wall panel is set perpendicular to the wall panel surface layer (1) of the longitudinal wall panel.
4. The plug-in bathroom wall panel external corner connection structure according to claim 3, characterized in that, The first side (27) and the second side (28) of the wall panel surface layer (1) form an angle of 144 degrees, and the wall panel surface layer (1) of the transverse wall panel and the wall panel surface layer (1) of the longitudinal wall panel form an angle of 2 degrees.
5. The plug-in bathroom wall panel external corner connection structure according to claim 1, characterized in that, The bottom of the first connector (3) and the top of the second connector (4) are respectively provided with a first inner waterproof groove (9), a first outer waterproof groove (20), a second inner waterproof groove (19), and a second outer waterproof groove (21).
6. The plug-in bathroom wall panel external corner connection structure according to claim 5, characterized in that, A waterproof strip (10) is provided in the cavity formed by the first inner waterproof groove (9) and the second inner waterproof groove (19); an outer waterproof strip is provided in the cavity formed by the first outer waterproof groove (20) and the second outer waterproof groove (21).
7. The plug-in bathroom wall panel external corner connection structure according to claim 3, characterized in that, The top wall of the first connector (3) and the left side wall of the second connector (4) are provided with anti-slip wave parts (18).
8. The plug-in bathroom wall panel external corner connection structure according to claim 1, characterized in that, The first connector (3) has a first structural reinforcement cavity (14) and a first spare fixing cavity (16) on its left and right sides respectively. The second connector (4) has a second structural reinforcement cavity (15) and a second spare fixing cavity (17) on its upper left and bottom sides respectively.
9. The plug-in bathroom wall panel external corner connection structure according to claim 1, characterized in that, The wall panel fastener (5) includes a through part (24) and a first side support part (25) and a second side support part (26). The width of the through part (24) is adapted to the width of the first insertion interface (12) and the second insertion interface (13). The first side support part (25) and the second side support part (26) are vertically arranged and used to guide the riveting of the first connector (3) and the second connector (4).
10. The plug-in bathroom wall panel external corner connection structure according to claim 1, characterized in that, The first connector (3) and the second connector (4) are initially riveted by inserting the wall panel fastener (5) horizontally to the left and right, and are fixed by inserting the connector (6) vertically to the top and bottom.