Connecting structure of invisible internal corner line

Abstract

The utility model discloses an invisible internal corner line connecting structure, which comprises a wall surface layer and an internal corner line, the wall surface layer comprises a building wall body, a leveling support keel structure, a wall plate and a decorative plate from inside to outside in sequence, and the internal corner line is arranged at the internal corner of the wall plate and is fixedly connected with the leveling support keel structure through a screw; the internal corner line comprises a line main body, two different-plane vertical line slot insertion ends positioned at the top and the middle part of the line main body, two supporting legs positioned at the bottom of the line main body and a self-tapping screw hole positioned between the two supporting legs; the line slot insertion ends are respectively inserted into the two vertical decorative plates from the back surface of the internal corner; by adopting the scheme, the unique design of the internal corner line can enable the connection between the line and the wallboard notch to be more stable, so that the use of structural adhesive and fixing nails is reduced, and the problems that the internal corner line of the wallboard decorative plate is exposed and the internal corner is glued in the prior art are solved through the structural design.

Description

Technical Field

[0001] This utility model belongs to the field of building interior structure technology, and more specifically, this utility model relates to a connection structure for invisible corner lines. Background Technology

[0002] Finishing details in decoration refers to the processing of edges, corners, and joints of decorative surfaces to compensate for imperfections and enhance the decorative effect. On one hand, it involves the treatment of joints and seams at the finishing points, using finishing materials to cover and prevent the base material from being exposed and affecting the overall effect. On the other hand, it refers to using specialized materials to decorate the rough areas between decorative surfaces to enhance the decorative effect. Corner moldings are one of the main methods for finishing details in decoration.

[0003] In the concept of prefabricated interior decoration, most of the internal corner moldings are mainly for the finishing effect, which requires the exposure of aluminum alloy moldings or the customization of special wall panel groove types. However, this approach makes it difficult to produce a tight splicing process, which affects the aesthetics of the interior decoration.

[0004] In the traditional decoration industry, the finishing of decorative panel inside corners is generally divided into two types: adhesive bonding and nailing. These methods can basically meet the requirements for finishing inside corners of decorative panels, but they also have certain problems. First, adhesive bonding results in higher formaldehyde emissions, causing greater environmental pollution. After a period of time, due to glue fatigue and oxidation, the decorative panel is prone to detachment. Second, nailing damages the surface of the decorative panel, affecting the decorative effect. Even if repairs are made later, it adds steps and time, making it difficult to control construction costs. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a connection structure for invisible corner lines.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a connection structure for an invisible corner trim, comprising a wall layer and a corner trim, wherein the wall layer consists of a building wall, a leveling support keel structure, a wall panel, and a decorative panel from the inside out, wherein the corner trim is set at the corner of the wall panel and is fixedly connected to the leveling support keel structure by screws; the corner trim includes a trim body, two skewed vertical groove insertion ends located at the top and middle of the trim body, two support feet located at the bottom of the trim body, and a self-tapping screw hole located between the two support feet, wherein the groove insertion ends are inserted into the two vertical decorative panels from the back of the corner respectively.

[0007] This utility model discloses a connection structure for an invisible corner trim, wherein the two sides of the insertion end of the trim groove are provided with locking tabs.

[0008] This utility model discloses a connection structure for an invisible corner line, wherein the leveling support keel structure includes a light steel keel and leveling screws, wherein the light steel keel is 3cm away from the building wall.

[0009] This utility model discloses a connection structure for an invisible corner trim. The corner trim is made of aluminum alloy with a thickness of 0.7-1mm, and the length of the groove insertion end in the structure is 3-5mm.

[0010] This utility model discloses a connection structure for invisible corner lines, wherein structural adhesive is applied at 500cm intervals at the contact points between the back of the decorative panel and the light steel keel.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. By fixing the corner trim to the light steel keel, the wall panel decoration at the inside corner of the wall can achieve a tight splicing effect.

[0013] 2. The unique design of the inside corner trim makes the connection between the trim and the wall panel groove more stable, thereby reducing the use of structural adhesive and fixing nails. The structural design solves the problems of exposed inside corner trim and adhesive application in existing wall panel decorative panels.

[0014] 3. The wall corners fixed by this structure are easier to install and repair, reducing the complexity of wall panel installation and construction, and are closer to the modern popular concept of prefabricated whole-house decoration.

[0015] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0017] Figure 1 This is a schematic diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the inside corner lines of this utility model;

[0019] The markings in the diagram are: 1. Building wall; 2. Light steel keel; 3. Wall panel; 4. Decorative panel; 5. Corner molding; 6. Trough insertion end; 7. Seam clip; 8. Support leg; 9. Leveling screw; 10. Self-tapping screw hole; 11. Main body of molding. Detailed Implementation

[0020] The following description, with reference to the accompanying drawings, further details the specific implementation methods of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the function and working principle of each part, the manufacturing process, and the operation and use methods, so as to help those skilled in the art to have a more complete, accurate, and in-depth understanding of the utility model concept and technical solution.

[0021] like Figure 1 and Figure 2 The diagram shows a connection structure for an invisible corner trim, comprising a wall layer and a corner trim 5. The wall layer consists of a building wall 1, a leveling support keel structure, a wall panel 3, and a decorative panel 4, from the inside out. The corner trim 5 is located at the inside corner of the wall panel 3 and is fixedly connected to the leveling support keel structure by screws. The corner trim 5 includes a trim body 11, two skewed vertical groove insertion ends 6 located at the top and middle of the trim body 11, two support feet 8 located at the bottom of the trim body 11, and a self-tapping screw hole 10 located between the two support feet 8. The groove insertion ends 6 are inserted into the two vertical decorative panels 4 from the back of the inside corner.

[0022] It should be noted that the two support feet 8 are designed to prevent the corner trim 5 from deforming when the screws are tightened into the light steel keel 2, which would cause the wall panel 3 to not be perpendicular after installation. The support feet 8 can form an overlapping and fixed force-bearing point with the light steel keel 2, thus achieving the function of fixing the decorative panel 4.

[0023] like Figure 2 The groove insertion end 6 shown has locking tabs 7 on both sides.

[0024] It should be noted that the working principle of the joint strip 7 is that after the groove insertion end 6 is inserted into the groove of the wall panel 3 by external force, the joint strip 7 can fix the joint position. After installation, the groove of the wall panel 3 and the inside corner strip 5 will be locked together and there will be no shaking or instability.

[0025] like Figure 1 The leveling support keel structure shown includes a light steel keel 2 and a leveling screw 9, wherein the light steel keel 2 is 3cm away from the building wall (1).

[0026] It should be noted that: the leveling support keel structure refers to the principle of controlling the depth of the leveling screw 9 into the building wall 1 so that the exposed surface of the light steel keel 2 is at the same level, thereby achieving the leveling effect. This method does not require plastering and leveling on the original building wall panel 3, and can achieve the flatness requirement. The leveling light steel keel 2 is 3cm away from the building wall (1), so the flatness deviation of the wall surface within 3cm is allowed.

[0027] like Figure 1 and Figure 2 The inner corner line 5 shown is made of aluminum alloy with a thickness of 0.7-1mm, and the length of the groove insertion end 6 in its structure is 3-5mm.

[0028] It should be noted that the overall material of the inside corner trim 5 is aluminum alloy. The thickness of the aluminum alloy is adjusted to 0.7-1mm according to the requirements of different wall panels 3. The length of the groove insertion end 6 in its structure is generally 3-5mm according to the depth of the wall panel 3, which can play the role of fixing the position of the two wall panels 3 at the inside corner.

[0029] like Figure 1 Structural adhesive is applied at 500cm intervals to the contact points between the back of the decorative panel 4 and the light steel keel 2.

[0030] Working principle and method

[0031] like Figure 1 As shown, a light steel keel 2 is installed on the surface of the building wall 1, and leveling is performed using leveling screws 9. The leveling range is 3cm. A 1mm thick corner trim 5 is placed at the corner of the wall panel 3 and fixed in place with self-tapping screws. The wall panel 3 is then installed as shown. Figure 1 The structure shown has structural adhesive applied at 500cm intervals at the contact point between the back of the decorative panel 4 and the light steel keel 2. Then, the two wall panels 3 are vertically inserted into the inside corner trim 5 with an insertion length of 3.5mm. At this time, the locking strip 7 inside the inside corner trim 5 is locked to the inside of the groove of the decorative panel 3. The inside corner structure is now installed.

[0032] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A connection structure for an invisible corner trim, comprising a wall layer and a corner trim, characterized in that, The wall layer consists of, from the inside out, the building wall, the leveling and supporting keel structure, the wall panel, and the decorative panel. The corner trim is set at the inside corner of the wall panel and is fixedly connected to the leveling and supporting keel structure by screws. The corner trim includes a trim body, two skewed vertical groove insertion ends located at the top and middle of the trim body, two support feet located at the bottom of the trim body, and a self-tapping screw hole located between the two support feet. The groove insertion ends are inserted into the two vertical decorative panels from the back of the inside corner.

2. The connection structure for an invisible corner trim according to claim 1, characterized in that, The insertion end of the wire groove is provided with locking tabs on both sides.

3. The connection structure for an invisible corner trim according to claim 1, characterized in that, The leveling support keel structure includes a light steel keel and leveling screws, wherein the light steel keel is 3cm away from the building wall.

4. The connection structure of the concealed corner line according to claim 1, characterized in that, The inner corner trim is made of aluminum alloy with a thickness of 0.7-1mm, and the length of the groove insertion end in its structure is 3-5mm.

5. The connection structure for an invisible corner trim according to claim 2, characterized in that, Structural adhesive is applied to the back of the decorative panel at 500cm intervals where it contacts the light steel keel.

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