Right-angle flat sticking mortise and tenon structure

Abstract

The utility model discloses a right angle flat pasting mortise and tenon structure, including horizontal board material and vertical board material, the horizontal board material is provided with first recessed triangular sheet, the vertical board material is provided with second recessed triangular board, first recessed triangular sheet and first recessed triangular sheet shape compatible fixed, the horizontal board material and vertical board material are provided with hidden mortise and tenon connecting piece, and the horizontal board material and vertical board material fixed connection are made through hidden mortise and tenon connecting piece. Through the splicing of first recessed triangular sheet and second recessed triangular board, hidden mortise and tenon connecting piece provides the main mechanical locking force, and recessed triangular sheet and triangular board that mutually adhere constitute stable support surface. The hidden mortise and tenon connecting piece is completely encapsulated in the horizontal board material and vertical board material, realizes the thorough hiding of connecting point. The outer surface is without any mortise, screw hole or protruding tenon, and the appearance is neat and smooth, which greatly improves the aesthetic value of the product.

Description

Technical Field

[0001] This utility model relates to the field of mortise and tenon structure technology, specifically a right-angle flat-fit inner mortise and tenon structure. Background Technology

[0002] Currently, most furniture on the market uses screws or rivets for connection. However, metal and wood expand and contract differently with temperature changes, which can easily lead to loosening and creaking over time. Some furniture also uses glue, which can easily come unglued under humid or high temperatures. Traditional right-angle tenons are mostly installed with exposed tenons or with inserts, leaving the tenons exposed on the surface. Even after painting, the marks on the tenons are still very obvious. Therefore, we need to solve the problems existing in the current technology. Utility Model Content

[0003] The purpose of this utility model is to solve the problems mentioned in the background art. This utility model aims to: provide a mortise and tenon structure that achieves a firm connection without external metal fasteners, fundamentally avoiding loosening and abnormal noise caused by differences in material thermal expansion and contraction; and provide a mortise and tenon structure where the connection point is completely hidden inside the component, leaving no connection marks on the furniture's outer surface, achieving a smooth and aesthetically pleasing effect.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A right-angle flat-fit mortise and tenon structure includes a horizontal plate and a vertical plate. The horizontal plate is provided with a first recessed triangular piece, and the vertical plate is provided with a second recessed triangular piece. The first recessed triangular piece and the second recessed triangular piece are fitted and fixed in shape. The horizontal plate and the vertical plate are provided with hidden mortise and tenon connectors, which fix the horizontal plate and the vertical plate together.

[0005] Furthermore, a stepped surface is provided between the horizontal plate and the first recessed triangular piece, and a stepped surface is provided between the vertical plate and the second recessed triangular piece. The stepped surfaces of the horizontal plate and the vertical plate are bonded together and fixedly connected by adhesive.

[0006] Furthermore, the horizontal plate has a first groove on one side of the first recessed triangular piece, and the first groove is circular or square in shape.

[0007] Furthermore, the vertical plate has a second slot on one side of the second recessed triangular plate, and the shape of the second slot is circular or square.

[0008] Furthermore, the first recessed triangular piece and the second recessed triangular plate are joined together to make the hidden tenon and mortise connectors hidden between the horizontal and vertical plates.

[0009] Furthermore, two horizontal and two vertical panels are symmetrically arranged and spliced ​​together, with the opposing panels having the same size to form a frame.

[0010] Furthermore, the shape of the horizontal and vertical plates can be set to be circular or square.

[0011] Furthermore, the outer angles of the horizontal and vertical plates are right angles after they are spliced ​​together by the first and second recessed triangular plates.

[0012] Compared with existing technologies, the technical solution of this patent achieves the following beneficial effects: 1. By splicing the first recessed triangular piece and the second recessed triangular plate, the hidden mortise and tenon connector is completely encapsulated inside the horizontal and vertical plates, achieving complete concealment of the connection point. The outer surface has no mortises, screw holes, or protruding tenons, resulting in a clean and smooth appearance that greatly enhances the product's aesthetic value.

[0013] 2. Concealed mortise and tenon joints (such as pins and wedges) provide the primary mechanical locking force, while the interlocking recessed triangular pieces and plates form a stable support surface. Simultaneously, the stepped surface design increases the adhesive area, making the adhesive fixation more reliable. This multi-layered fixing method, combining mechanical and adhesive methods, ensures that the joint has extremely high tensile, shear, and torsional strength, resulting in a robust and durable structure.

[0014] 3. The concave triangular piece matches the shape of the triangular plate, providing a natural positioning and guiding function. After assembly, the outer side naturally forms a right angle, simplifying the alignment and calibration steps during assembly, reducing operational difficulty, and improving production efficiency and assembly accuracy. Attached Figure Description

[0015] Figure 1 This is a top view of the structure of the horizontal and vertical plates of this utility model before assembly; Figure 2 This is a top view of the assembled horizontal and vertical plates of this utility model. Figure 3 This is a bottom view of the structure of the horizontal and vertical plates of this utility model before assembly; Figure 4 This is a bottom view of the structure of the present invention after the horizontal and vertical plates are assembled. Figure 5 This is a top view schematic diagram of the assembled right-angle flat-fit inner tenon and mortise structure of this utility model; Figure 6 This is a partial structural schematic diagram of the horizontal plate of this utility model; Figure 7 This is a partial structural schematic diagram of the vertical plate of this utility model; Figure 8This is a partial structural diagram of the rear side of the vertical plate of this utility model.

[0016] In the diagram: 1. Horizontal plate; 2. Second recessed triangular plate; 3. First slot; 12. Vertical plate; 21. First recessed triangular plate; 31. Second slot. Detailed Implementation

[0017] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] See Figure 1-8 As shown, this embodiment provides a right-angle flat-fit mortise and tenon structure, including a horizontal plate 1 and a vertical plate 12. The horizontal plate 1 is provided with a first recessed triangular piece 21, which is formed by cutting away part of the material from the horizontal plate 1. Similarly, the vertical plate 12 is provided with a second recessed triangular piece 2, which is also formed by cutting away part of the material from the vertical plate 12. The shapes of the first recessed triangular piece 21 and the second recessed triangular piece 21 are adapted to fit and fix them together. The horizontal plate 1 and the vertical plate 12 are provided with a hidden mortise and tenon connector 5, which fixes the horizontal plate 1 and the vertical plate 12 together. By fitting and fixing the first recessed triangular piece 21 and the second recessed triangular piece 2 together, and by combining the hidden mortise and tenon connector 5, a firm connection between the horizontal plate 1 and the vertical plate 12 is achieved. This structural solution enhances the stability and durability of the connection, reduces the risk of loosening caused by material expansion and contraction, and at the same time, the hidden mortise and tenon connector 5 avoids exposure, thus improving the aesthetics.

[0019] A stepped surface is provided between the horizontal plate 1 and the first recessed triangular piece 21, and a stepped surface is provided between the vertical plate 12 and the second recessed triangular piece 2. The stepped surfaces of the horizontal plate 1 and the vertical plate 12 are bonded together and fixedly connected by adhesive. The stepped surface design increases the adhesive bonding area, making the horizontal plate 1 and the vertical plate 12 fit more tightly, and improving the strength and reliability of the adhesive fixation. This structural solution not only enhances the tensile and shear resistance of the connection, but also ensures assembly accuracy through the alignment of the stepped surfaces, reducing the possibility of delamination.

[0020] The horizontal plate 1 has a first slot 3 on one side of the first recessed triangular piece 21. The first slot 3 can be circular or square. The design of the first slot 3 provides installation space for concealing the tenon and mortise connector 5. The choice of circular or square shape allows for the use of different types of connectors, improving the flexibility and convenience of installation.

[0021] The vertical plate 12 has a second slot 31 on one side of the second recessed triangular plate 2. The second slot 31 is circular or square in shape. The second slot 31 cooperates with the first slot 3, so that the hidden tenon and mortise connector 5 can be fixed from both sides, thereby enhancing the connection strength between the horizontal plate 1 and the vertical plate 21.

[0022] The first recessed triangular piece 21 and the second recessed triangular plate 2 are joined together to conceal the mortise and tenon connector 5 between the horizontal plate 1 and the vertical plate 12. Through the joining of the first recessed triangular piece 21 and the second recessed triangular plate 2, the mortise and tenon connector 5 is completely encapsulated within the horizontal plate 1 and the vertical plate 12, achieving complete concealment of the connection point. This structural solution eliminates mortise and tenon marks on the outer surface, resulting in a clean and smooth appearance for the furniture, enhancing its aesthetics and sense of luxury.

[0023] Two horizontal panels (1) and two vertical panels (12) are symmetrically arranged and spliced ​​together to form a frame. The opposing panels are of the same size. This symmetrical arrangement of two panels spliced ​​together to form a frame structure improves the overall rigidity and stability. This design is suitable for furniture such as tables, chairs, and cabinets, ensuring uniform stress distribution while facilitating standardized production and assembly.

[0024] The horizontal panel 1 and the vertical panel 12 can be shaped like a circle or a square. This flexibility in shape increases design diversity and adaptability. This structural design allows furniture designers to choose different shapes based on aesthetic and functional requirements, broadening application scenarios and enhancing the product's market competitiveness.

[0025] The horizontal panel 1 and the vertical panel 12 are joined together by the first recessed triangular piece 21 and the second recessed triangular piece 2, resulting in a right angle on their outer sides. This right angle ensures the precision and regularity of the furniture structure. It is suitable for furniture requiring right-angle connections, such as cabinets and window frames.

[0026] During assembly, first, insert one end of the hidden tenon-and-mortise connector 5 (such as a wooden dowel) into the groove of the horizontal plate 1 or the vertical plate 12. Then, align and tightly fit the first recessed triangular piece 21 on the horizontal plate 1 with the second recessed triangular piece 2 on the vertical plate 12, so that the hidden tenon-and-mortise connector 5 is completely embedded in the channel formed by the first groove 3 and the second groove 31, and fix it with glue. At this point, the horizontal plate 1 and the vertical plate 12 are firmly connected together by internal tenon-and-mortise joints and external glue, and all connection points are hidden inside. From the outside, only a perfectly fitted right-angle joint is visible, resulting in an extremely neat appearance.

[0027] Depending on the specific application requirements, two horizontal plates 1 and two vertical plates 12 can be symmetrically arranged, which, when spliced ​​together, form a stable rectangular frame. Furthermore, the cross-sectional shapes of the horizontal plates 1 and vertical plates 12 can be made circular or square according to design requirements.

Claims

1. A right-angle flat-fit mortise and tenon structure, comprising a horizontal plate (1) and a vertical plate (12), characterized in that, The horizontal plate (1) is provided with a first recessed triangular piece (21), and the vertical plate (12) is provided with a second recessed triangular piece (2). The first recessed triangular piece (21) and the first recessed triangular piece (21) are fitted and fixed in shape. The horizontal plate (1) and the vertical plate (12) are provided with hidden tenon and mortise connectors (5), and the horizontal plate (1) and the vertical plate (12) are fixedly connected by the hidden tenon and mortise connectors (5).

2. The right-angle flat-fit mortise and tenon structure according to claim 1, characterized in that, A stepped surface is provided between the horizontal plate (1) and the first recessed triangular piece (21), and a stepped surface is provided between the vertical plate (12) and the second recessed triangular piece (2). The stepped surfaces of the horizontal plate (1) and the vertical plate (12) are bonded together and fixedly connected by glue.

3. The right-angle flat-fit mortise and tenon structure according to claim 1, characterized in that, The horizontal plate (1) has a first groove (3) on one side of the first recessed triangular piece (21), and the first groove (3) is circular or square in shape.

4. A right-angle flat-fit mortise and tenon structure according to claim 1, characterized in that, The vertical plate (12) has a second slot (31) on one side of the second recessed triangular plate (2), and the second slot (31) is circular or square in shape.

5. A right-angle flat-fit mortise and tenon structure according to claim 1, characterized in that, After the first recessed triangular piece (21) and the second recessed triangular plate (2) are spliced ​​together, the hidden tenon and mortise connector (5) is hidden between the horizontal plate (1) and the vertical plate (12).

6. A right-angle flat-fit mortise and tenon structure according to claim 1, characterized in that, Two horizontal and two vertical panels (12) are symmetrically arranged and spliced ​​together to form a frame. The panels facing each other are the same size.

7. A right-angle flat-fit mortise and tenon structure according to claim 1, characterized in that, The shape of the horizontal plate (1) and the vertical plate (12) can be set to be circular or square.

8. A right-angle flat-fit mortise and tenon structure according to claim 1, characterized in that, The horizontal plate (1) and the vertical plate (12) are joined together by the first recessed triangular piece (21) and the second recessed triangular piece (2) at a right angle on the outside.

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