Combined profile, invisible closure structure and construction method therefor

Abstract

Provided in the present invention are a combined profile, an invisible closure structure and a construction method therefor. The combined profile comprises a first profile, a second profile and a first joining member, wherein the first profile and the second profile are each provided with a closure face; slots are provided in the other sides of the first profile and the second profile opposite the closure face sides; the distance from the highest point of the closure face of the first profile to the center line of the slot in the first profile is the same as the distance from the highest point of the closure face of the second profile to the center line of the slot in the second profile; the first joining member is located in the slots; and after the first profile and the second profile are joined at a preset assembly corner by means of the first joining member, the highest point of the closure face of the first profile and the highest point of the closure face of the second profile are located on the same plane. The combined profile avoids the problems of low on-site machining efficiency and low machining precision of a painting closure profile, corner assembly is performed by single profiles by means of free combination, and continuous closure construction from a line to a plane and then to a volume can be achieved.

Description

Combined profile, invisible closing structure and construction method thereof

[0001] Cross-references

[0002] The present invention claims priority to Chinese patent application No. 202310733418.2, entitled “COMBINITE PROFILE, INVISSIBLE END WALL STRUCTURE AND CONSTRUCTION METHOD THEREOF”, filed on June 19, 2023, which is incorporated herein by reference in its entirety. Technical Field

[0003] The present invention belongs to the technical field of building decoration, and more specifically, relates to a combined profile, an invisible closing structure and a construction method thereof. Background Art

[0004] The existing painting finishing profile is a single profile. When used in space, the single profile is usually cut on site to assemble the corners to complete the finishing construction from line to surface. The on-site cutting and assembling of the painting finishing profile takes a long time and has low processing accuracy. The single profiles cannot be freely combined to assemble the corners, and the continuous finishing construction from line to surface and then to body cannot be completed.

[0005] Summary of the Invention

[0006] The purpose of the embodiments of the present invention is to provide a combined profile, an invisible closing structure and a construction method thereof, so as to solve the technical problems of long processing time and low processing precision in on-site cutting and corner assembly of existing painted closing profiles.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: the first aspect of the present invention provides a combined profile, including a first profile, a second profile and a first splicing piece, the first profile and the second profile are both provided with a closing surface, the closing surface is an inclined surface, the first profile and the second profile are both provided with a notch on the other side opposite to the closing surface, the distance from the highest point of the closing surface of the first profile to the center line of the notch of the first profile is the same as the distance from the highest point of the closing surface of the second profile to the center line of the notch of the second profile, the first splicing piece is located in the notch, and after the first profile and the second profile are spliced ​​at a preset group angle through the first splicing piece, the highest point of the closing surface of the first profile and the highest point of the closing surface of the second profile are located in the same plane.

[0008] In one embodiment, the first profile and the second profile have the same structure.

[0009] In one embodiment, the first profile and the second profile are both external corner partition profiles, and the first profile and the second profile both include a first side and a second side arranged opposite to each other, the first side has a first plane for fitting with a base surface, the notch is arranged on the first plane, the closing surface is arranged on the second side, and the end of the closing surface has a flange for fitting with the surface to be separated.

[0010] In one embodiment, the second side has a first groove and a side wall located on a side of the first groove away from the closing surface, the side wall is perpendicular to the first plane, and a mounting hole is formed at the bottom of the first groove.

[0011] In one embodiment, the end of the side wall away from the closing surface has a protruding portion, the protruding portion is perpendicular to the side wall, and the length of the protruding portion is greater than or equal to 2 mm and less than or equal to 5 mm.

[0012] In one embodiment, a second groove is provided on a side of the first groove close to the side wall, or a second groove is provided on a side of the first groove close to the closing surface.

[0013] In one embodiment, the number of the second profiles is two, the preset angles between the first profile and the two second profiles are both 90 degrees, and the extension directions of the two second profiles are perpendicular.

[0014] In one embodiment, the first profile is a negative corner profile.

[0015] In one embodiment, the first profile includes a first connecting portion and a second connecting portion, and the first connecting portion and the second connecting portion are integrally connected;

[0016] The closing surface of the first profile includes a first closing surface and a second closing surface, the first connecting part and the second connecting part both have a first side and a second side arranged opposite to each other, the first side of the first connecting part is provided with the first closing surface, and the first side of the second connecting part is provided with the second closing surface, the notch includes a first notch and a second notch, the second side of the first connecting part is provided with the first notch, and the second side of the second connecting part is provided with the second notch, the first closing surface and the second closing surface are connected together to form a female angle, and the connection between the first closing surface and the second closing surface has a third groove extending in the intersection direction of the first side of the first connecting part and the first side of the second connecting part.

[0017] In one embodiment, the first connecting portion and the second connecting portion have the same structure.

[0018] In one embodiment, the first profile is a positive angle profile.

[0019] In one embodiment, the first profile includes a first connecting portion and a second connecting portion, and the first connecting portion and the second connecting portion are integrally connected;

[0020] The closing surface of the first profile includes a first closing surface and a second closing surface, the first connecting part and the second connecting part both have a first side and a second side arranged opposite to each other, the first side of the first connecting part is provided with the first closing surface, and the first side of the second connecting part is provided with the second closing surface, the notch includes a first notch and a second notch, the second side of the first connecting part is provided with the first notch, and the second side of the second connecting part is provided with the second notch, the first closing surface and the second closing surface are connected together to form a positive angle.

[0021] In one embodiment, the second profile is a negative corner profile.

[0022] A second aspect of the present invention provides a hidden closing structure, which includes the combined profile as described above.

[0023] A third aspect of the present invention provides a method for constructing a stealth-sealing structure, wherein the combined profile is the combined profile described above, and the method for constructing the stealth-sealing structure comprises:

[0024] A first profile, a second profile, and a first splicing piece are provided. The first profile and the second profile are each provided with a closing surface, wherein the closing surface is an inclined surface. The first profile and the second profile are each provided with a notch on a side opposite to one side of the closing surface. The distance from the highest point of the closing surface of the first profile to the centerline of the notch of the first profile is the same as the distance from the highest point of the closing surface of the second profile to the centerline of the notch of the second profile.

[0025] Splicing the first profile and the second profile at a preset angle, wherein the highest point of the closing surface of the first profile and the highest point of the closing surface of the second profile are located in the same plane;

[0026] The first splicing piece is used to connect the splicing portion of the first profile and the second profile, wherein the first splicing piece is located in the notches of the first profile and the second profile.

[0027] In one embodiment, it further includes:

[0028] Installing the first profile and the second profile on a surface with the notch on a finished substrate;

[0029] Provide a first substrate, install the first substrate on the finished surface substrate, apply putty material to the surface of the first substrate and the finishing surface, eliminate the height difference between the surface of the first substrate and the finishing surface, and use the surface on which the putty material is applied and the finishing surface as the surfaces to be painted with latex paint, and at the same time use the highest point of the finishing surface as the end of the surface to be painted.

[0030] The combined profile provided by the present invention includes a first profile, a second profile and a first splicing piece. The first profile and the second profile are both provided with a closing surface, and the closing surface is an inclined surface. The first profile and the second profile are both provided with a notch on the other side opposite to the closing surface. The distance from the highest point of the closing surface of the first profile to the center line of the notch of the first profile is the same as the distance from the highest point of the closing surface of the second profile to the center line of the notch of the second profile. The first splicing piece is located in the notch. After the first profile and the second profile are spliced ​​at a preset group angle through the first splicing piece, the closing angle of the first profile is The highest point of the opening surface and the highest point of the closing surface of the second profile are located in the same plane. The combined profile is connected to the first profile and the second profile by a first splicing piece, so that the first profile and the second profile are pre-spliced. Since the highest point of the closing surface of the first profile and the highest point of the closing surface of the second profile are located in the same plane after the first profile and the second profile are spliced, the problems of low on-site processing efficiency and low processing accuracy of the painted closing profile are avoided. The combined profile realizes the free combination of single profiles to form angles, and can realize continuous closing construction from line to surface and then to body. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] FIG1 is a schematic structural diagram of a composite profile provided by an embodiment of the present invention;

[0033] FIG2 is a schematic structural diagram of a first profile or a second profile of a composite profile provided by an embodiment of the present invention;

[0034] FIG3 is a schematic structural diagram of a first profile or a second profile of a composite profile provided by an embodiment of the present invention;

[0035] FIG4 is a schematic structural diagram of a composite profile provided in an embodiment of the present invention;

[0036] FIG5 is a schematic structural diagram of a first profile or a second profile of a composite profile provided by an embodiment of the present invention;

[0037] FIG6 is a schematic structural diagram of a composite profile provided in an embodiment of the present invention;

[0038] FIG7 is a schematic structural diagram of a composite profile provided in an embodiment of the present invention;

[0039] FIG8 is a schematic structural diagram of a recessed corner profile provided by an embodiment of the present invention;

[0040] FIG9 is a schematic structural diagram of a positive angle wire profile provided in an embodiment of the present invention;

[0041] FIG10 is a schematic structural diagram of a positive angle wire profile provided in an embodiment of the present invention;

[0042] FIG11 is a schematic structural diagram of a composite profile provided in an embodiment of the present invention;

[0043] FIG12 is a schematic structural diagram of a composite profile provided in an embodiment of the present invention;

[0044] FIG13 is a schematic structural diagram of the invisible closing structure provided by an embodiment of the present invention.

[0045] Among them, the reference numerals in the figure are: 1-first profile; 2-second profile; 3-first splicing piece; 4-first base material; 5-seaming paper bandage; 6-seaming paste; 7-second base material; 11, 21-closing surface; 12, 22-notch; 13, 23-first plane; 14, 24-first groove; 15, 25-side wall; 16, 26-second groove; 111-first connecting portion; 112-second connecting portion; 113-third groove. DETAILED DESCRIPTION

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0047] In the description of the present invention, it should be understood that the terms "including" and "having" and any variations thereof used herein are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0048] In addition, in this application, unless otherwise clearly specified and limited, the terms "connect", "connected", "fixed", "installed", etc. should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection between two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in this application according to the specific circumstances.

[0049] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of the features. It should be understood that the term "and / or" as used herein is merely a description of an association between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone.

[0051] The combined profile, combined profile, invisible closing structure and construction method thereof provided by the present invention are described in detail below with reference to specific embodiments.

[0052] 1-3 , a first aspect of an embodiment of the present invention provides a combined profile, comprising a first profile 1, a second profile 2 and a first splicing piece 3, wherein the first profile 1 and the second profile 2 are both provided with a closing surface (11, 21), the closing surface (11, 21) being an inclined surface, the first profile 1 and the second profile 2 are both provided with a notch (12, 22) on one side opposite to the closing surface (11, 21), the distance from the highest point of the closing surface 11 of the first profile 1 to the center line of the notch 12 of the first profile 1 is the same as the distance from the highest point of the closing surface 12 of the second profile 2 to the center line of the notch 22 of the second profile 12, the first profile 1 and the second profile 2 are spliced ​​and connected by the first splicing piece 3, the first splicing piece 3 is located in the notch (12, 22), and after the first profile 1 and the second profile 2 are spliced ​​at a preset group angle, the highest point of the closing surface of the first profile 1 and the highest point of the closing surface of the second profile 2 are located in the same plane.

[0053] The intersection of lines in space forms surfaces, and the intersection of surfaces forms a body. Single profiles follow the lines, surfaces, and bodies in space and intersect with each other at the connection positions of walls, walls and ceilings, and walls and floors. The intersecting profiles need to be angled to complete the continuous finishing construction of the painting and finishing profiles from lines to surfaces and then to bodies. The first profile 1 and the second profile 2 of this embodiment are used for finishing construction.

[0054] The first profile 1 and the second profile 2 of this embodiment are profiles used for painting and finishing. The intersecting profiles need to be angled to complete the continuous finishing construction of the painting and finishing profile from line to surface and then to body. This embodiment does not impose any special restrictions on the specific materials of the first profile 1 and the second profile 2. For example, the first profile 1 and the second profile 2 are both aluminum alloy profiles.

[0055] The distance between the highest point of the closing surface 11 of the first profile 1 of this embodiment and the center line of the notch 12 of the first profile 11 is the same as the distance between the highest point of the closing surface 21 of the second profile 2 and the center line of the notch 22 of the second profile 2. For example, the first profile 1 and the second profile 2 of this embodiment are spliced ​​at a 90-degree angle by the first splicing piece 3. The first splicing piece 3 of this embodiment is an L-shaped splicing piece, one side of the L-shaped splicing piece is fixed in the notch 12 of the first profile 1 by screws, and the other side of the L-shaped splicing piece is fixed in the notch 22 of the second profile 2 by screws. The L-shaped splicing piece of this embodiment is a commonly used splicing piece and the material is easy to obtain. Of course, in other embodiments, the first profile 1 and the second profile 2 can be spliced ​​at other angles by the first splicing piece 3. For example, the first splicing piece 3 can be a V-shaped connector. The technician can select different splicing angles for the first profile 1 and the second profile 2 according to actual needs, and select the first connector 3 of matching shape at the same time.

[0056] The first profile 1 and the second profile 2 of this embodiment can be divided into single-sided profiles and double-sided profiles according to the construction surfaces contained in the profile cross-section. The single-sided profile cross-section has one construction surface, and the double-sided profile cross-section has two adjacent construction surfaces. For example, the first profile 1 and the second profile 2 are external corner profiles or internal corner profiles. After the first profile 1 and the second profile 2 are spliced, the highest point of the closing surface 11 of the first profile 1 and the highest point of the closing surface 21 of the second profile 2 are located in the same plane, the axial distance between the installation notch (12, 22) of the first splicing piece 3 and the highest point of the closing surface (11, 21) is consistent, the specifications of the screw fixing holes of the first profile 1 and the second profile 2 are consistent, and the width of the expansion joint between the first profile 1 and the second profile 2 and the gypsum board is consistent.

[0057] The combined profile provided in this embodiment includes a first profile, a second profile and a first splicing piece. The first profile and the second profile are both provided with a closing surface, and the closing surface is an inclined surface. The first profile and the second profile are both provided with a notch on the other side opposite to the closing surface. The distance from the highest point of the closing surface of the first profile to the center line of the notch of the first profile is the same as the distance from the highest point of the closing surface of the second profile to the center line of the notch of the second profile. The first splicing piece is located in the notch. After the first profile and the second profile are spliced ​​at a preset group angle through the first splicing piece, the highest point of the closing surface of the first profile and the highest point of the closing surface of the second profile are The highest points of the closing surfaces of the two profiles are located in the same plane. The distance from the highest point of the closing surface of the first profile of the combined profile to the center line of the groove of the first profile is the same as the distance from the highest point of the closing surface of the second profile to the center line of the groove of the second profile. The combined profile realizes the angle combination between single profiles through free combination, and can realize continuous closing construction from line to surface and then to body. After the first profile and the second profile are spliced ​​together, the highest point of the closing surface of the first profile and the highest point of the closing surface of the second profile are located in the same plane, avoiding the problems of low on-site processing efficiency and low processing accuracy of painted closing profiles.

[0058] Figure 2 is a schematic structural diagram of the first profile or the second profile of the combined profile provided in an embodiment of the present invention, and Figure 3 is a schematic structural diagram of the first profile or the second profile of the combined profile provided in an embodiment of the present invention. Please refer to Figures 1-3. The structures of the first profile 1 and the second profile 2 are the same.

[0059] For example, referring to Figures 4 and 5, the first profile 1 and the second profile 2 are both external corner partition profiles, and the first profile 1 and the second profile 2 both include a first side and a second side arranged opposite to each other, the first side having a first plane (13, 23) for fitting with a base surface, the notches (12, 22) being arranged on the first plane (13, 23), the closing surface (11, 21) being arranged on the second side, and the end of the closing surface (11, 21) having a flange for fitting with a surface to be separated. The decorative surface on the closing surface side of the external corner structure made of the external corner partition profile and the surface to be separated are respectively located on both sides of the flange, which enables the decorative surface on the closing surface (11, 21) side of the external corner partition profile to be freely combined with the surface to be separated of different materials.

[0060] The decorative surface and the surface to be separated on both sides of the flange of this embodiment can be made of different materials, allowing for flexible material changes. This embodiment does not impose any specific restrictions on the specific material of the surface to be separated; for example, the surface to be separated can be made of wood, stone, or wall covering. The decorative surface and the surface to be separated on the flanged edge of the external corner structure manufactured using the external corner separation profile of this embodiment are separated by a flange, resulting in an aesthetically pleasing appearance.

[0061] In a specific embodiment, as shown in Figures 4 and 5, the second side has a first groove (14, 24) and a side wall (15, 25) located on the side of the first groove (14, 24) away from the closing surface (11, 21), the side wall (15, 25) is perpendicular to the first plane (13, 23), and a screw fixing reference line is provided at the bottom of the first groove (14, 24). The side wall of this embodiment is equivalent to the thickness of the gypsum board laid on the surface to be painted. The first groove (14, 24) of this embodiment is used to fix the first profile 1 and the second profile 2 on the base surface to be installed. The bottom of the first groove (14, 24) of this embodiment is provided with a screw fixing reference line, which facilitates the fixing of the first profile 1 and the second profile 2, and can improve the installation efficiency to a certain extent.

[0062] As shown in FIG5 , the end of the side wall (15, 25) away from the closing surface has an extension, the extension being perpendicular to the side wall (15, 25), and the length of the extension being greater than or equal to 2 mm and less than or equal to 5 mm. The first profile 1 and the second profile 2 of this embodiment have shorter extensions than those of the existing closing profile, eliminating the need for an edge grinding process when installing the gypsum board. The first profile 1 and the second profile 2 leave a gap of the length of the extension at the junction of the profile and the gypsum board, making the installation process of the structure more convenient during construction.

[0063] A second groove (16, 26) is provided on the side of the first groove (14, 24) close to the side wall (15, 25), or a second groove (16, 26) is provided on the side of the first groove (14, 24) close to the closing surface (11, 21). In this embodiment, by providing the second groove (16, 26) on the side of the first groove (14, 24) close to the side wall (15, 25) or the side of the first groove (14, 24) close to the closing surface (11, 21), the putty is embedded in the second groove (16, 26) during the subsequent puttying process, so that the putty is more firmly adsorbed on the first profile 1 and the second profile 2.

[0064] In a specific embodiment, the number of the second profiles 2 is two, the preset group angles between the first profile 1 and the two second profiles 2 are both 90 degrees, and the extension directions of the two second profiles 2 are perpendicular. For example, the first profile 1 of this embodiment is a female corner profile or a male corner profile, and the second profile 2 is a general closing profile or the second profile 2 is the above-mentioned male corner dividing profile. Figure 6 is a structural schematic diagram of the combined profile provided in an embodiment of the present invention, in which the first profile 1 in Figure 6 is a male corner profile. Figure 7 is a structural schematic diagram of the combined profile provided in an embodiment of the present invention, in which the first profile 1 in Figure 7 is a female corner profile.

[0065] 7 , in this embodiment, the first profile 2 is a recessed corner profile. The recessed corner profile in this embodiment can be a recessed corner profile in the prior art, and this embodiment does not impose any particular limitation on the specific form of the recessed corner profile.

[0066] FIG8 is a schematic structural diagram of a negative corner profile provided in an embodiment of the present invention. Referring to FIG7 and FIG8 , exemplarily, the first profile 1 is a negative corner profile, and the first profile 1 includes a first connecting portion 111 and a second connecting portion 112 , and the first connecting portion 111 and the second connecting portion 112 are integrally connected.

[0067] The closing surface 11 of the first profile 1 includes a first closing surface and a second closing surface, the first connecting part 111 and the second connecting part 112 both have a first side and a second side arranged opposite to each other, the first side of the first connecting part 111 is provided with the first closing surface, and the first side of the second connecting part 112 is provided with the second closing surface, the notch 12 includes a first notch and a second notch, the second side of the first connecting part 111 is provided with the first notch, and the second side of the second connecting part 112 is provided with the second notch, the first closing surface and the second closing surface are connected together to form a concave angle, and the connection between the first closing surface and the second closing surface has a third groove 113 extending in a direction crossing the first side of the first connecting part 111 and the first side of the second connecting part 112.

[0068] The first connection part 111 and the second connection part 112 of the internal angle wire profile are connected as a whole, which can improve the installation efficiency. The connection between the first finishing surface and the second finishing surface has a third groove 113 extending in the cross direction of the first side of the first connection part 111 and the first side of the second connection part 112. The third groove 113 forms an expansion joint during the closing process. During the closing process, the first closing surface and the second closing surface at the internal angle can be painted and closed at the same time, which improves the painting construction efficiency.

[0069] Referring to FIG. 7 and FIG. 8 , in this embodiment, the first connecting portion 111 and the second connecting portion 112 have the same structure.

[0070] 6 , in a specific embodiment, the first profile 1 is a positive corner profile. The positive corner profile in this embodiment can be a positive corner profile in the prior art, and this embodiment does not impose any particular limitation on the specific form of the positive corner profile.

[0071] FIG9 and FIG10 are schematic structural diagrams of a positive angle wire profile provided in an embodiment of the present invention. Referring to FIG9 and FIG10 , illustratively, the first profile 1 includes a first connecting portion 111 and a second connecting portion 112, and the first connecting portion 111 and the second connecting portion 112 are integrally connected;

[0072] The closing surface 11 of the first profile 1 includes a first closing surface and a second closing surface, the first connecting part 111 and the second connecting part 112 both have a first side and a second side arranged opposite to each other, the first side of the first connecting part 111 is provided with the first closing surface, and the first side of the second connecting part 112 is provided with the second closing surface, the notch 12 includes a first notch and a second notch, the second side of the first connecting part 111 is provided with the first notch, and the second side of the second connecting part 112 is provided with the second notch, and the first closing surface and the second closing surface are connected together to form a positive angle.

[0073] In a specific embodiment, the second profile 2 is a negative corner profile. The negative corner profile in this embodiment can be a negative corner profile in the prior art, or the negative corner profile in this embodiment is the negative corner profile as described above. Figure 11 is a schematic structural diagram of a combined profile provided in an embodiment of the present invention, wherein the first profile 1 is a negative corner profile, and the two second profiles 2 are also negative corner profiles. Figure 12 is a schematic structural diagram of a combined profile provided in an embodiment of the present invention, wherein the first profile 1 is a positive corner profile, and the two second profiles 2 are negative corner profiles.

[0074] In the above embodiment, the first profile 1 and the second profile 2 each include a plurality of straight-line profiles. The plurality of straight-line profiles of the first profile 1 are connected by a plurality of second splicing pieces, and the plurality of straight-line profiles of the second profile 2 are connected by a plurality of third splicing pieces. Adjacent straight-line profiles of the first profile 1 can be spliced ​​and connected by the second splicing pieces, wherein the second splicing pieces are straight-line shaped connectors; and adjacent straight-line profiles of the second profile 2 can be spliced ​​and connected by the third splicing pieces, wherein the third splicing pieces are also straight-line shaped connectors.

[0075] The first profile 1 and the second profile 2 are both splicable structures. Technicians can splice first profiles 1 and second profiles 2 of different lengths according to on-site needs, which is highly flexible.

[0076] In the above embodiments, the first connecting pieces 3 are all L-shaped connecting pieces.

[0077] The combined profile provided by the embodiment of the present invention includes a first profile, a second profile and a first splicing piece. The first profile and the second profile are both provided with a closing surface, and the closing surface is an inclined surface. The first profile and the second profile are both provided with a notch on the other side opposite to the closing surface. The distance from the highest point of the closing surface of the first profile to the center line of the notch of the first profile is the same as the distance from the highest point of the closing surface of the second profile to the center line of the notch of the second profile. The first splicing piece is located in the notch. After the first profile and the second profile are spliced ​​at a preset group angle through the first splicing piece, the first profile is The highest point of the closing surface and the highest point of the closing surface of the second profile are located in the same plane. The combined profile is spliced ​​with the first profile and the second profile by a first splicing piece, so that the first profile and the second profile are pre-spliced. Since the highest point of the closing surface of the first profile and the highest point of the closing surface of the second profile are located in the same plane after the first profile and the second profile are spliced, the problems of low on-site processing efficiency and low processing accuracy of the painted closing profile are avoided. The combined profile realizes the free combination of single profiles to form angles, and can realize continuous closing construction from line to surface and then to body.

[0078] A second aspect of the embodiments of the present invention provides an invisible closing structure, which includes the combined profiles described in the above embodiments.

[0079] Please refer to Figure 1. The combined profile includes a first profile 1, a second profile 2 and a first splicing piece 3. The first profile 1 and the second profile 2 are both provided with closing surfaces (11, 21), and the closing surfaces (11, 21) are inclined surfaces. The first profile 1 and the second profile 2 are both provided with notches (12, 22) on one side opposite to the closing surfaces (11, 21). The distance from the highest point of the closing surface 11 of the first profile 1 to the center line of the notch 12 of the first profile 1 is the same as the distance from the highest point of the closing surface 12 of the second profile 2 to the center line of the notch 22 of the second profile 12. The first profile 1 and the second profile 2 are spliced ​​and connected by the first splicing piece 3. The first splicing piece 3 is located in the notch (12, 22). After the first profile 1 and the second profile 2 are spliced ​​at a preset group angle, the highest point of the closing surface of the first profile 1 and the highest point of the closing surface of the second profile 2 are located in the same plane.

[0080] The combined profile of this structure is connected to the first profile and the second profile by splicing the first splicing piece, so that the first profile and the second profile are pre-spliced. Since the highest point of the closing surface of the first profile and the highest point of the closing surface of the second profile are located in the same plane after the first profile and the second profile are spliced, the problems of low on-site processing efficiency and low processing accuracy of the painted closing profile are avoided. The combined profile realizes the free combination of single profiles to form angles, and can realize continuous closing construction from line to surface and then to body.

[0081] FIG13 is a schematic structural diagram of an invisible closing structure provided by an embodiment of the present invention. Referring to FIG4 and FIG13 , a third aspect of an embodiment of the present invention provides a method for constructing an invisible closing structure. The composite profile is the composite profile described in the above embodiment. The method for constructing an invisible closing structure includes:

[0082] S101. Provide a first profile 1, a second profile 2, and a first splicing piece 3. The first profile 1 and the second profile 2 are both provided with closing surfaces (11, 21), and the closing surfaces (11, 21) are inclined surfaces. The first profile 1 and the second profile 2 are both provided with notches (12, 22) on one side opposite to the closing surfaces (11, 21). The distance from the highest point of the closing surface 11 of the first profile 1 to the center line of the notch 12 of the first profile 1 is the same as the distance from the highest point of the closing surface 12 of the second profile 2 to the center line of the notch 22 of the second profile 2.

[0083] S102, splicing the first profile 1 and the second profile 2 at a preset angle, wherein the highest point of the closing surface 11 of the first profile 1 and the highest point of the closing surface 21 of the second profile 2 are located in the same plane;

[0084] S103 , using a first splicing piece 3 to connect the joint of the first profile 1 and the second profile 2 , wherein the first splicing piece 3 is located in the notch 12 of the first profile 1 and the notch 22 of the second profile 2 .

[0085] Furthermore, the invisible closing structure construction method also includes:

[0086] S104, installing the first profile 1 and the second profile 2 on the surface with the notches (12, 22) on the finished surface substrate;

[0087] Specifically, the first profile 1 and the second profile 2 of this embodiment are fixed by screws arranged in the first grooves (14, 24).

[0088] S105, providing a first substrate 4, installing the first substrate 4 on the finished surface substrate, applying putty material to the surface of the first substrate 4 and the inclined surface, i.e., the closing surface (11, 21), eliminating the height difference between the surface of the first substrate 4 and the inclined surface, i.e., the closing surface (11, 21), and using the surface on which the putty material is applied and the inclined surface, i.e., the closing surface (11, 21) as the surfaces to be painted with latex paint, and at the same time using the highest point of the inclined surface, i.e., the closing surface (11, 21) as the end of the surface to be painted.

[0089] The first substrate 4 of this embodiment may be a gypsum board, which may be formed by splicing single gypsum boards, and the gap between two adjacent gypsum boards is bonded by paper tape.

[0090] In a specific embodiment, the first profile 1 and the second profile 2 are both external corner partition profiles, and the first profile 1 and the second profile 2 both include a first side and a second side arranged opposite to each other, the first side having a first plane for bonding with the base surface of the first substrate 4, the notches (12, 22) are arranged on the first plane, the closing surface (11, 21) is arranged on the second side, and the end of the closing surface (11, 21) has a flange for bonding with the surface to be separated.

[0091] For example, before applying the putty material to the surface of the first substrate 4, the method further includes first filling the gap between the first substrate 4 and the first profile 1 and the first groove 14 of the fixing screw with a sealing paste 6, and then passing the joint paper bandage 5 across the surface of the first substrate 4 and the gap between the first substrate 4 and the external corner partition profile 1, so as to flexibly connect the joint formed when the first substrate 4 and the first profile 1 are attached. Specifically, there is a gap adjacent to the first substrate 4 and the first profile 1, and the gap is sealed by the sealing paste 6 and the joint paper bandage 5, so that the surface is flat and convenient for applying putty material and latex paint. Among them, the joint paper bandage 5 is sent into the second groove 16 after crossing the gap between the first substrate 4 and the first profile 1, and then the putty is applied, and finally the latex paint is applied. Of course, the latex paint can be other paints, such as micro-cement art paint. This construction method separates the latex paint from the finished surface by the first substrate 4 and the first profile 1, preventing the wall from expanding and causing cracks in the latex paint layer, so that the wall of the building maintains long-term beauty and cleanliness, ensuring long-term safe and stable residential use. The first profile 1 is fixed on the finished surface substrate. When applying putty material and latex paint, the inclined surface of the first profile 1, i.e., the closing surface 11, is directly used as a reference for painting, making painting more convenient and eliminating the need for other painting auxiliary tools, thereby reducing costs and improving efficiency. In this embodiment, a second substrate 7 is provided on one side of the flange of the first profile 1. This embodiment does not particularly limit the specific form of the second substrate 7. The second substrate 7 can be a wooden board, a stone slab, or a wall cloth.

[0092] The combined profile of this embodiment is to splice the first profile and the second profile through a first splicing piece, and the first splicing piece is located in the groove of the first profile and the second profile. The splicing method of the first profile and the second profile is simple. After the first profile and the second profile are spliced ​​together, the highest point of the closing surface of the first profile and the highest point of the closing surface of the second profile are located in the same plane. After the first profile and the second profile are spliced ​​in advance at a preset grouping angle, the problems of low on-site assembly and processing efficiency and low processing accuracy of the painted closing profile are avoided. Since the highest point of the closing surface of the first profile and the highest point of the closing surface of the second profile are located in the same plane after the first profile and the second profile are spliced ​​together, the single profiles of the combined profile are freely combined to perform grouping angles, which can realize continuous closing construction from line to surface and then to body. This construction method can eliminate the height difference between the surface of the first substrate and the inclined surface, and use the surface of the putty material to be scraped and the inclined surface, i.e., the closing surface, as the surface to be painted with latex paint. At the same time, the highest point of the inclined surface, i.e., the closing surface, is used as the end of the surface to be painted, so that the finished surface after the construction is completed has an invisible closing effect.

[0093] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A combined profile, comprising a first profile, a second profile and a first splicing piece, the first profile and the second profile are both provided with a closing surface, the closing surface is an inclined surface, the first profile and the second profile are both provided with a notch on the other side opposite to the closing surface, the distance from the highest point of the closing surface of the first profile to the center line of the notch of the first profile is the same as the distance from the highest point of the closing surface of the second profile to the center line of the notch of the second profile, the first splicing piece is located in the notch, and after the first profile and the second profile are spliced ​​at a preset group angle through the first splicing piece, the highest point of the closing surface of the first profile and the highest point of the closing surface of the second profile are located in the same plane.

2. The composite profile according to claim 1, wherein: The first profile and the second profile have the same structure.

3. The composite profile according to claim 2, wherein: The first profile and the second profile are both external corner partition profiles, and the first profile and the second profile both include a first side and a second side arranged opposite to each other, the first side has a first plane for fitting with a base surface, the notch is arranged on the first plane, the closing surface is arranged on the second side, and the end of the closing surface has a flange for fitting with a surface to be separated.

4. The composite profile according to claim 3, wherein: The second side has a first groove and a side wall located on a side of the first groove away from the closing surface, the side wall is vertically arranged to the first plane, and a mounting hole is formed at the bottom of the first groove.

5. The composite profile according to claim 4, wherein: The end of the side wall away from the closing surface has a protruding portion, the protruding portion is perpendicular to the side wall, and the length of the protruding portion is greater than or equal to 2 mm and less than or equal to 5 mm.

6. The composite profile according to claim 4, wherein: A second groove is provided on a side of the first groove close to the side wall, or a second groove is provided on a side of the first groove close to the closing surface.

7. The composite profile according to claim 1, wherein: The number of the second profiles is two, the preset angles between the first profile and the two second profiles are both 90 degrees, and the extension directions of the two second profiles are perpendicular.

8. The composite profile according to claim 7, wherein: The first profile is a negative angle line profile.

9. The composite profile according to claim 8, wherein: The first profile includes a first connecting portion and a second connecting portion, wherein the first connecting portion and the second connecting portion are integrally connected; The closing surface of the first profile includes a first closing surface and a second closing surface, the first connecting portion and the second connecting portion both have a first side and a second side arranged opposite to each other, the first side of the first connecting portion is provided with the first closing surface, the first side of the second connecting portion is provided with the second closing surface, the notch includes a first notch and a second notch, the second side of the first connecting portion is provided with the first notch, the second side of the second connecting portion is provided with the second notch, the first closing surface and the second closing surface are connected together to form a negative angle, and the first closing surface and the second closing surface are connected at a point where the first closing surface and the second closing surface are connected and have a third concave angle extending in a direction intersecting the first side of the first connecting portion and the first side of the second connecting portion. groove.

10. The composite profile according to claim 9, wherein: The first connection portion and the second connection portion have the same structure.

11. The composite profile according to claim 7, wherein: The first profile is a positive angle line profile.

12. The composite profile according to claim 11, wherein: The first profile includes a first connecting portion and a second connecting portion, wherein the first connecting portion and the second connecting portion are integrally connected; The closing surface of the first profile includes a first closing surface and a second closing surface, the first connecting part and the second connecting part each have a first side and a second side arranged opposite to each other, the first side of the first connecting part is provided with the first closing surface, and the first side of the second connecting part is provided with the second closing surface, the notch includes a first notch and a second notch, the second side of the first connecting part is provided with the first notch, and the second side of the second connecting part is provided with the second notch, and the first closing surface and the second closing surface are connected together to form a positive angle.

13. The composite profile according to claim 12, wherein: The second profile is a negative angle line profile.

14. An invisible closing structure, comprising the combined profile according to any one of claims 1 to 13.

15. A method for constructing an invisible closing structure, the method comprising: A first profile, a second profile and a first splicing piece are provided, wherein the first profile and the second profile are both provided with a closing surface, wherein the closing surface is an inclined surface, and the first profile and the second profile are both provided with a notch on the other side opposite to the closing surface, and the distance from the highest point of the closing surface of the first profile to the center line of the notch of the first profile is the same as the distance from the highest point of the closing surface of the second profile to the center line of the notch of the second profile; The first profile and the second profile are spliced ​​at a preset combination angle, wherein the highest point of the closing surface of the first profile and the highest point of the closing surface of the second profile are located in the same plane; The first splicing piece is used to connect the splicing portion of the first profile and the second profile, wherein the first splicing piece is located in the notches of the first profile and the second profile.

16. The invisible closing structure construction method according to claim 15, characterized in that: Installing the first profile and the second profile on one side with the notch on the finished surface substrate; A first substrate is provided, and the first substrate is installed on the finished surface substrate, and a putty material is applied to the surface of the first substrate and the closing surface to eliminate the height difference between the surface of the first substrate and the closing surface, and the surface on which the putty material is applied and the closing surface are used as the surfaces to be painted with latex paint, and the highest point of the closing surface is used as the end of the surface to be painted.

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