External corner profile and assembly type bathroom
By designing a guide structure and a herringbone structure for the external corner profile, the connection and waterproofing issues of the external corner profile in prefabricated bathrooms were solved, achieving a double seal of mechanical sealing and grout, thus improving the connection strength and waterproofing effect of prefabricated bathrooms.
Patent Information
- Application Number
- CN202520013271.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Existing corner profiles are not effective in terms of connection and waterproofing in prefabricated bathrooms. The sealant is prone to cracking and falling off, affecting installation efficiency and connection strength.
A corner profile was designed, comprising a main frame, first and second insert plates, and first and second back plates. It is composed of a guide structure, a herringbone structure, a screw positioning structure, and a thickened area to achieve a dual seal of mechanical sealing and joint sealing, thereby enhancing connection strength and waterproofing effect.
It achieves reliable connection, improves sealing and waterproofing performance, enhances the stability of the grout, and increases installation efficiency and connection strength.
Smart Images

Figure CN223824495U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of home decoration, specifically relates to a external corner section bar and assembly bathroom. BACKGROUND
[0002] At present, assembly bathroom is more and more welcomed in the home decoration market. The assembly bathroom adopts the assembly bathroom wallboard processed in the factory, the vertical groove is formed on the side wall of the wallboard, the external corner section bar is inserted into the vertical groove to connect the wallboard, and the waterproof sealing is carried out through the sealant and the sealant. The existing external corner section bar connection effect and waterproof effect are not good. SUMMARY
[0003] The utility model provides a external corner section bar and assembly bathroom to at least partially solve the above technical problem.
[0004] As a first aspect of the utility model, a external corner section bar is provided for connecting two adjacent and mutually perpendicular assembly bathroom wallboards, the external corner section bar comprises:
[0005] A main frame, the main frame is a square tube structure, has adjacent and mutually perpendicular first connecting surface and second connecting surface;
[0006] A first plugboard is vertically arranged on the first connecting surface of the main frame and can be inserted into the vertical groove of the side wall of the assembly bathroom wallboard, the free end of the first plugboard is provided with a guide structure for guiding the insertion of the first plugboard into the vertical groove;
[0007] A second plugboard is vertically arranged on the second connecting surface of the main frame and can be inserted into the vertical groove of the side wall of the assembly bathroom wallboard, the second plugboard is provided with a fishbone structure;
[0008] A first backboard is arranged at the first top corner formed by the first connecting surface and the second connecting surface and is perpendicular to the first connecting surface, the first backboard, the first connecting surface and the first plugboard form a first groove;
[0009] A second backboard is vertically arranged on the side surface of the first backboard away from the first plugboard, the second backboard, the second connecting surface and the second plugboard form a second groove; Wherein, the cut corner groove is provided at the two top corners adjacent to the first top corner of the main frame, the cut corner groove and the edge of the assembly bathroom wallboard form the joint for accommodating the sealant with the inside being larger and the outside being smaller.
[0010] Wherein, the second backboard is provided with a fishbone structure on the side surface facing the second plugboard.
[0011] Wherein, the second backboard is provided with a screw positioning structure on the side surface away from the second plugboard.
[0012] The screw positioning structure is a V-shaped groove.
[0013] The guiding structure of the first inserting plate is a two-stage taper guiding structure with gradually decreasing width.
[0014] The main frame is internally provided with a thickened area corresponding to the position of the chamfered groove.
[0015] The free end of the first back plate is provided with an outwardly expanding expansion part.
[0016] As a second aspect of the utility model, a prefabricated bathroom is also provided, comprising at least two prefabricated bathroom wallboards arranged adjacent to each other and perpendicular to each other, the side wall of the prefabricated bathroom wallboard is provided with a vertical groove, and the prefabricated bathroom wallboard further comprises the external corner profile.
[0017] The prefabricated bathroom wallboard is a magnesium crystal plate composite wallboard.
[0018] According to the above scheme, the external corner profile and the prefabricated bathroom of the utility model have at least one of the following beneficial effects compared with the prior art.
[0019] The external corner profile of the utility model can reliably connect two prefabricated bathroom wallboards to form mechanical sealing and connection, double sealing with the caulking of the wallboard gap, ensure the connection strength and improve the sealing and waterproof effect, improve the caulking cracking and falling problem, improve the installation efficiency, and ensure the connection effect. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical scheme of the utility model, the drawings needed in the embodiment will be briefly introduced as follows.
[0021] Figure 1 It is a cross-sectional view of the external corner profile of the utility model.
[0022] Figure 2 It is a schematic view of the connection of the external corner profile and the prefabricated wallboard of the utility model.
[0023] In the above drawings, the meanings of the reference signs are as follows:
[0024] In the diagram: 1. Main frame; 11. First connecting surface; 12. Second connecting surface; 13. First apex corner; 14. Thickened area; 15. Chamfered groove; 2. First insert plate; 21. Guide structure; 3. Second insert plate; 31. Herringbone structure; 4. First back plate; 41. Expansion section; 5. Second back plate; 51. Screw positioning structure; 52. Herringbone structure; 61. First groove; 62. Second groove; 10. External corner profile; 20. Prefabricated bathroom wall panel; 30. Self-tapping screw; 40. Joint. Detailed Implementation
[0025] To better understand the technical solutions of the embodiments of this utility model, the embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0026] It should be understood that the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0027] like Figure 1 and Figure 2 As shown, this embodiment of the utility model discloses a corner profile 10, which is used to connect two adjacent and mutually perpendicular prefabricated bathroom wall panels 20. During use, the user can observe the corner profile 10; that is, the corner profile 10 is located inside the bathroom and can be observed.
[0028] The external corner profile 10 includes a main frame 1, a first insert plate 2, a second insert plate 3, a first back plate 4, and a second back plate 5.
[0029] The main frame 1 is a rectangular cylindrical structure, that is, a cylindrical structure with a roughly rectangular cross-section. The main frame 1 has adjacent and mutually perpendicular first connecting surfaces 11 and second connecting surfaces 12.
[0030] The first insert plate 2 is vertically disposed on the first connecting surface 11 of the main frame 1, and can also be inserted into a vertical groove in the side wall of the prefabricated bathroom wall panel 20. The free end of the first insert plate 2 is provided with a guide structure 21 for guiding the first insert plate 2 into the vertical groove. The guide structure 21 is generally a tapered structure, and its thickness decreases closer to the free end to facilitate insertion into the vertical groove.
[0031] The second plug plate 3 is vertically arranged on the second connecting surface 12 of the main frame 1, and can be inserted into the vertical groove of the side wall of the assembled bathroom wallboard 20. The fishbone structure 31 is arranged on the second plug plate 3. The fishbone structure 31 is composed of multiple grooves, and can accommodate sealant. After the sealant solidifies, the connection strength between the sealant and the second plug plate 3 can be improved, and the waterproof effect can be improved.
[0032] The first back plate 4 is arranged at the first top corner 13 formed by the first connecting surface 11 and the second connecting surface 12, and is perpendicular to the first connecting surface 11. The first back plate 4, the first connecting surface 11 and the first plug plate 2 form the first groove 61.
[0033] The second back plate 5 is arranged on the side surface of the first back plate 4 away from the first plug plate 2, and the second back plate 5, the second connecting surface 12 and the second plug plate 3 form the second groove 62. Two top corners adjacent to the first top corner 13 of the main frame 1 are provided with chamfer grooves 15, and the chamfer grooves 15 and the edges of the assembled bathroom wallboard 20 form the joint 40 for accommodating the sealant, which is large inside and small outside. Specifically, the chamfer groove 15 is composed of two intersecting planes, and the included angle between the two planes is an acute angle, so that the joint 40 for accommodating the sealant, which is large inside and small outside, can be formed.
[0034] Referring to Figure 2 In use, the external corner profile 10 is connected between two assembled bathroom wallboards 20.
[0035] First, the external corner profile 10 is connected with the right side assembled bathroom wallboard 20 in Figure 2 The second plug plate 3 is inserted into the vertical groove of the side wall of the assembled bathroom wallboard 20, and the vertical groove and the second plug plate 3 are bonded with sealant. The fishbone structure 31 on the second plug plate 3 stores a large amount of sealant, which improves the connection effect and sealing effect of the first plug plate 2 and the assembled bathroom wallboard 20 after solidification. Then, the self-tapping screw 30 is struck on the second back plate 5, and the second back plate 5 is reliably fixed with the right side assembled bathroom wallboard 20. The assembled bathroom wallboard 20 is inserted into the second groove 62, and the second groove 62 can position and protect the edge of the assembled bathroom wallboard 20.
[0036] Then, the first plug plate 2 of the external corner profile 10 is inserted into the vertical groove of the left side assembled bathroom wallboard 20. When inserted, the guide structure 21 of the first plug plate 2 can guide the first plug plate 2 to be smoothly inserted. The first plug plate 2 and the vertical groove of the left side assembled bathroom wallboard 20 are connected by sealant, which improves the connection effect and sealing effect.
[0037] After the insertion is completed, the joint 40 between the two assembled bathroom wall panels 20 and the main frame 1 is sealed with sealant. After the sealant enters the joint 40, due to the structure of large inside and small outside, the sealant after solidification is also shaped into a trapezoidal cross section, which is not easy to fall off from the joint, thereby improving the connection strength of the sealant and effectively improving various problems such as cracking and falling off of the sealant. The joint can also be filled with no sealant.
[0038] Therefore, the external corner profile of the utility model can reliably connect two assembled bathroom wall panels 20, form mechanical sealing and connection, form double sealing with the sealant of the wall panel gap, ensure the connection strength and improve the sealing and waterproof effect, improve the installation efficiency and ensure the connection effect.
[0039] Further, the second back plate 5 is provided with a fishbone structure 52 on the side surface facing the second insertion plate 3, and the sealant can be applied here, so that the connection effect between the second back plate 5 and the assembled bathroom wall panel 20 can be improved.
[0040] The second back plate 5 is provided with a screw positioning structure 51 on the side surface away from the second insertion plate 3. The screw positioning structure 51 assists the self-tapping screw 30 in positioning and ensures the accurate position of the self-tapping screw 30. In the embodiment, the screw positioning structure 51 is a V-shaped groove.
[0041] The guide structure 21 of the first insertion plate 2 is a two-stage tapered guide structure with gradually decreasing width. In this way, the guide effect can be improved, and the structural strength can be ensured.
[0042] The main frame 1 is provided with a thickening area 14 corresponding to the position of the chamfer groove 15. The thickening area 14 is also arranged at the top corner, so that the local thickness of the main frame 1 can be prevented from being too small to affect the structural strength.
[0043] The free end of the first back plate 4 is provided with an expansion part 41 expanding outward. The expansion part 41 can guide the assembled bathroom wall panel 20 into the first groove 61, so as to facilitate the installation of the assembled bathroom wall panel 20.
[0044] The utility model embodiment further discloses an assembled bathroom. The assembled bathroom comprises at least two adjacent and perpendicular assembled bathroom wall panels 20, the side wall of the assembled bathroom wall panel 20 is provided with a vertical groove, and the assembled bathroom further comprises the external corner profile 10, the first insertion plate and the second insertion plate of the external corner profile 10 are inserted into the vertical grooves of the adjacent side walls of the two adjacent assembled bathroom wall panels respectively, and the second back plate is fixed with the assembled bathroom wall panel through the self-tapping screw. The assembled bathroom wall panel is a magnesium crystal panel composite wall panel, and can also be other wall panels.
[0045] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application.
Claims
1. A type of external corner profile for connecting two adjacent and mutually perpendicular prefabricated bathroom wall panels, characterized in that, The external corner profile includes: The main frame is a square tube structure with adjacent and mutually perpendicular first and second connecting surfaces. The first insert plate is vertically disposed on the first connecting surface of the main frame and can be inserted into the vertical groove of the side wall of the prefabricated bathroom wall panel. The free end of the first insert plate is provided with a guide structure for guiding the first insert plate into the vertical groove. The second insert plate is vertically set on the second connecting surface of the main frame and can be inserted into the vertical groove of the side wall of the prefabricated bathroom wall panel. The second insert plate is provided with a fishbone structure. A first back plate is disposed at the first apex corner formed by the first connecting surface and the second connecting surface and is perpendicular to the first connecting surface. The first back plate, the first connecting surface and the first insert plate form a first groove. The second back plate is vertically disposed on the side surface of the first back plate away from the first insert plate. The second back plate, the second connecting surface, and the second insert plate form a second groove. Among them, a chamfered groove is provided at the two apex corners of the main frame adjacent to the first apex corner. The chamfered groove and the edge of the prefabricated bathroom wall panel form a joint that is larger inside and smaller outside to accommodate the sealant.
2. The external corner profile according to claim 1, characterized in that, The second back plate has a fishbone structure on the side facing the second insert plate.
3. The external corner profile according to claim 1, characterized in that, The second back plate has a screw positioning structure on the side surface away from the second insert plate.
4. The external corner profile according to claim 3, characterized in that, The screw positioning structure is a V-groove.
5. The external corner profile according to claim 1, characterized in that, The guide structure of the first insert plate is a two-stage tapered guide structure with a progressively smaller width.
6. The external corner profile according to claim 1, characterized in that, The main frame has a thickened area inside that corresponds to the position of the chamfered groove.
7. The external corner profile according to claim 1, characterized in that, The free end of the first back plate is provided with an outwardly expanding portion.
8. A prefabricated bathroom fixture, comprising at least two adjacent and mutually perpendicular prefabricated bathroom wall panels, wherein the side walls of the prefabricated bathroom wall panels are provided with vertical grooves, characterized in that, It also includes the external corner profile as described in any one of claims 1 to 7, wherein the first insert plate and the second insert plate of the external corner profile are respectively inserted into the vertical grooves of the adjacent side walls of two adjacent prefabricated bathroom wall panels, and the second back plate is fixed to the prefabricated bathroom wall panel by self-tapping screws.
9. The prefabricated bathroom according to claim 8, characterized in that, The prefabricated bathroom wall panel is a magnesium crystal composite wall panel.