Fixing structure for plywood construction
By employing a mechanically embedded connection of the first and second connectors during plywood construction, combined with mortise and tenon joints of the convex plate and groove, the problem of poor overall strength and isolation effect of plywood is solved, achieving high strength and stable installation of plywood.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU HAOYUAN CONSTRUCTION CO LTD
- Filing Date
- 2025-04-16
- Publication Date
- 2026-05-22
AI Technical Summary
Traditional plywood construction methods result in lower overall strength and poor insulation of the plywood due to the fixed structure.
The plywood body is detachably connected by a mechanical embedded connection of the first and second connectors, combined with a mortise and tenon joint structure of the convex plate and groove. The first and second grooves of the first connector cooperate with the support plate and the plug plate to enhance the overall strength.
It improves the overall strength and insulation effect of plywood, increases the resistance to lateral displacement by 30-40%, and increases the bending strength by 30-40%, avoiding the problems of easy loosening of single-point fixing and deformation or falling off of the board caused by local stress concentration.
Smart Images

Figure CN224266428U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building decoration technology, and in particular to a fixing structure for plywood construction. Background Technology
[0002] Plywood is a three- or multi-layered sheet material made by rotary cutting logs into veneers or slicing timber into thin sheets and then gluing them together with adhesives. It usually uses an odd number of veneer layers and glues the adjacent veneer layers with the grain direction perpendicular to each other. Plywood is usually made into standard-sized flat rectangular building material boards (such as plywood, metal sheets, concrete sheets, and plastic sheets) for use as components of walls, ceilings, or floors.
[0003] Chinese Patent Publication No. CN214034535U discloses a plywood construction fixing structure, which includes a wall surface and plywood. The wall surface is provided with several fixing grooves, and a fastener is fixedly connected inside the fixing groove. A snap connector is provided on the back of the plywood at a position corresponding to the snap connector. The snap connector and the snap connector snap together, so that the plywood is fixedly connected to the wall surface.
[0004] The above-mentioned technology can only realize the individual installation process of plywood. When plywood is used for wall construction, each individual plywood bears the load alone, resulting in low overall strength of the plywood and poor isolation effect. Therefore, this utility model discloses a fixing structure for plywood construction to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a fixing structure for plywood construction, so as to solve the problem that the traditional plywood construction fixing structure mentioned in the background art can only realize the individual installation process of plywood. When plywood is installed on the wall, each individual plywood bears the load alone, resulting in low overall strength of the plywood and poor isolation effect.
[0006] To achieve the above objectives, the present invention provides the following solution to the aforementioned technical problems:
[0007] A fixing structure for plywood construction includes a plywood body, a first connector, a second connector, and a wall surface. Multiple plywood bodies are arranged in an array on the wall surface, and adjacent plywood bodies are interlocked. Two first connectors are installed on the back of each plywood body, and four second connectors are installed on the side of the wall surface facing the plywood body. The same first connector is detachably connected between two adjacent second connectors.
[0008] The first connector has a first groove on its lower side and two second grooves on the side of the first connector facing the plywood body. The adjacent first and second grooves are connected to each other. A support plate is fixed to one side of the second connector. A plug plate is provided on the upper part of the end of the support plate away from the wall. The support plate corresponds to the first groove and the plug plate corresponds to the second groove.
[0009] As a further embodiment of this utility model, the four second connectors are divided into two rows and two columns, and a first connector is provided between the second connectors in the same row.
[0010] As a further embodiment of this utility model, the width of the support plate is the same as the width of the first groove, and the thickness of the plug plate is the same as the width of the second groove.
[0011] As a further embodiment of this utility model, grooves are provided on two adjacent sides of the plywood body, and the adjacent ends of the two grooves are connected to each other.
[0012] As a further embodiment of this utility model, protruding plates are provided on the other two adjacent sides of the plywood body, and the adjacent ends of the two protruding plates are connected to form an integral structure.
[0013] As a further embodiment of this utility model, the thickness of the convex plate is the same as the width of the groove, and the width of the convex plate is the same as the depth of the groove.
[0014] As a further embodiment of this utility model, two reinforcing plates are fixed between the bottom of the second connector and the support plate.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a fixing structure for plywood construction, in which the plywood body is detachably connected to the wall through a first connector and a second connector. The first groove and the second groove of the first connector respectively cooperate with the support plate and the insertion plate of the second connector to form a mechanical embedding connection, which greatly simplifies the installation process. Moreover, during the embedding connection process, the adjacent plywood bodies can complete the insertion and cooperation of the convex plate and the groove, so that the plywood bodies can restrain each other and form a mortise and tenon splicing interlocking structure, which enhances the overall strength of the structure. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0017] Figure 1 This is an assembly diagram of a plywood installation fixing structure according to the present invention. Figure 1 ;
[0018] Figure 2This is an assembly diagram of a plywood installation fixing structure according to the present invention. Figure 2 ;
[0019] Figure 3 This is a schematic diagram of the assembly of a fixing structure for plywood construction according to the present invention. Figure 3 ;
[0020] Figure 4 This is a back view of the plywood body in a plywood construction fixing structure according to the present invention.
[0021] Figure 5 This is a structural diagram of the second connector in a plywood construction fixing structure of this utility model;
[0022] Figure 6 This utility model relates to a fixing structure for plywood construction. Figure 4 Enlarged view of the structure at point A in the image.
[0023] The components represented by each number in the attached diagram are listed below: 1. Plywood body; 2. First connector; 3. Second connector; 4. Wall surface; 11. Groove; 12. Protruding plate; 21. First groove; 22. Second groove; 31. Support plate; 32. Insert plate; 33. Reinforcing plate. Detailed Implementation
[0024] The present invention will be further described below with reference to the embodiments.
[0025] Please see Figure 1-6 This utility model provides a fixing structure for plywood construction, including a plywood body 1, a first connector 2, a second connector 3, and a wall surface 4;
[0026] Specifically, the plywood body 1 is a three- or multi-layered board material bonded together with adhesive. The first connector 2 and the second connector 3 are both made of metal. Through the cooperation of the first connector 2 and the second connector 3, the plywood body 1 and the wall surface 4 are indirectly connected. The two do not come into direct contact, thus avoiding the problem of water seepage or dampness on the wall surface 4 affecting the lifespan of the plywood body 1.
[0027] Furthermore, multiple plywood bodies 1 are arranged in an array on the wall surface 4, and adjacent plywood bodies 1 are interlocked. Grooves 11 are provided on two adjacent sides of each plywood body 1, and the adjacent ends of the two grooves 11 are connected to each other. Protrusions 12 are provided on the other two adjacent sides of each plywood body 1, and the adjacent ends of the two protrusions 12 are connected to form an integral structure.
[0028] Specifically, during installation, the plywood body 1 can be interlocked with the groove 11 of the adjacent plywood body 1 via the protruding plate 12. During installation, the protruding plate 12 can be precisely embedded into the groove 11 of the adjacent plywood body, forming a mortise and tenon joint. This not only achieves rapid positioning but also improves the overall structure's resistance to lateral displacement by 30-40% through the continuous mechanical interlocking action, solving the problem of easy loosening of traditional single-piece fixing.
[0029] Furthermore, the thickness of the protruding plate 12 is the same as the width of the groove 11, and the width of the protruding plate 12 is the same as the depth of the groove 11.
[0030] Specifically, the width of the protruding plate 12 is the same as the depth of the groove 11, which can ensure that the interlocking fit between adjacent plywood bodies 1 is tight and without gaps, and has an aesthetically pleasing appearance. The thickness of the protruding plate 12 is the same as the width of the groove 11, which can form a tortuous contact surface between adjacent plywood bodies 1, and has a good isolation effect.
[0031] Furthermore, two first connectors 2 are installed on the back of the plywood body 1, and four second connectors 3 are installed on the side of the wall 4 facing the plywood body 1. The four second connectors 3 are divided into two rows and two columns, and first connectors 2 are arranged between the second connectors 3 in the same row.
[0032] Specifically, the four second connectors 3 are arranged in two rows and two columns, with two second connectors 3 in each row and two second connectors 3 in each column. This layout makes the distribution of the second connectors 3 on the wall surface 4 more uniform, resulting in a more balanced stress distribution on all parts of the plywood body 1. The four second connectors 3 are evenly distributed at the four corners of the back of the plywood body 1, with the spacing between connectors in the same row matching the width of the plywood and the spacing between connectors in the same column matching the height. This layout, through a symmetrical load-bearing structure design, allows the stress at a single point to be evenly distributed to the wall surface 4 through the cooperation of the first connector 2 and the second connector 3. The stress difference between different parts of the board is ≤10%, which increases the bending strength by 30-40% compared to the traditional single-point fixing method, avoiding the problem of board deformation or detachment caused by localized stress concentration.
[0033] Furthermore, the same first connector 2 is detachably connected between two adjacent second connectors 3. The lower side of each first connector 2 is provided with a first groove 21. The side of each first connector 2 facing the plywood body 1 is provided with two second grooves 22. The adjacent first grooves 21 and second grooves 22 are interconnected. One side of each second connector 3 is fixed with a support plate 31. The upper part of the end of the support plate 31 away from the wall 4 is provided with a plug plate 32.
[0034] Specifically, the first connector 2 has multiple countersunk grooves at equal intervals. After the screw passes through the countersunk grooves and is drilled into the plywood body 1, the first connector 2 and the plywood body 1 can be separated. The support plate 31 and the plug plate 32 together form a hook-shaped structure for supporting and limiting the first connector 2.
[0035] Furthermore, two reinforcing plates 33 are fixed between the bottom of the second connector 3 and the support plate 31;
[0036] Specifically, when the plywood body 1 is subjected to external force, the reinforcing plate 33 can work together with the supporting plate 31 to transfer the force to the second connector 3 and the wall 4, which can distribute the force more evenly and improve the overall strength of the structure. Optionally, the reinforcing plate 33 has a right-angled triangular structure. It is worth noting that the upper and lower ends of the second connector 3 are each provided with a countersunk groove. The expansion bolts are inserted through the countersunk grooves into the drilled holes in the wall 4 to complete the firm positioning of the second connector 3.
[0037] Furthermore, the support plate 31 corresponds to the first groove 21, the plug plate 32 corresponds to the second groove 22, the width of the support plate 31 is the same as the width of the first groove 21, and the thickness of the plug plate 32 is the same as the width of the second groove 22.
[0038] Specifically, the support plate 31 is tightly embedded in the first groove 21, so that the first connector 2 can be limited to the left and right, and the plug plate 32 is tightly embedded in the second groove 22, so that the first connector 2 can be limited to the front and rear, thereby effectively limiting the plywood body 1.
[0039] Working principle: When using it, the following steps are included:
[0040] Step 1, as follows Figure 1 As shown, the second connector 3 is anchored to the wall 4 by expansion bolts, the back of the plywood body 1 faces the wall 4, and the plywood body 1 is pushed to fit against the wall 4.
[0041] Step two, as Figure 2 As shown, push the plywood body 1 to slide in the correct installation direction until the first groove 21 is aligned with the support plate 31. The protrusion 12 on one side of the new plywood body 1 is then embedded in the groove 11 of the plywood body 1 in the same row, which can prevent the new plywood body 1 from moving back and forth.
[0042] Step 3, as Figure 3 As shown, under the action of gravity, the plywood body 1 moves downward, the insertion plate 32 is inserted into the second groove 22, and the protrusion 12 on the bottom side of the new plywood body 1 is embedded in the groove 11 of the plywood body 1 in the same row, which can prevent the new plywood body 1 from shifting left and right.
Claims
1. A fixing structure for plywood construction, comprising a plywood body (1), a first connector (2), a second connector (3), and a wall surface (4), characterized in that, Multiple plywood bodies (1) are arranged in an array on the wall surface (4). Adjacent plywood bodies (1) are interlocked. Two first connectors (2) are installed on the back of each plywood body (1). Four second connectors (3) are installed on the side of the wall surface (4) facing the plywood body (1). The same first connector (2) is detachably connected between two adjacent second connectors (3). The first connector (2) has a first groove (21) on its lower side. The first connector (2) has two second grooves (22) on the side facing the plywood body (1). The adjacent first grooves (21) and second grooves (22) are connected to each other. The second connector (3) has a support plate (31) fixed on one side. The support plate (31) has a plug plate (32) on the upper part of the end away from the wall (4). The support plate (31) corresponds to the first groove (21), and the plug plate (32) corresponds to the second groove (22).
2. The fixing structure for plywood construction according to claim 1, characterized in that: The four second connectors (3) are divided into two rows and two columns, and a first connector (2) is provided between the second connectors (3) in the same row.
3. The fixing structure for plywood construction according to claim 1, characterized in that: The width of the support plate (31) is the same as the width of the first groove (21), and the thickness of the plug plate (32) is the same as the width of the second groove (22).
4. The fixing structure for plywood construction according to claim 1, characterized in that: The plywood body (1) has grooves (11) on two adjacent sides, and the adjacent ends of the two grooves (11) are connected to each other.
5. A fixing structure for plywood construction according to claim 4, characterized in that: The plywood body (1) has protruding plates (12) on its two adjacent sides, and the adjacent ends of the two protruding plates (12) are connected as a single structure.
6. A fixing structure for plywood construction according to claim 5, characterized in that: The thickness of the convex plate (12) is the same as the width of the groove (11), and the width of the convex plate (12) is the same as the depth of the groove (11).
7. A fixing structure for plywood construction according to claim 1, characterized in that: Two reinforcing plates (33) are fixed between the bottom of the second connector (3) and the support plate (31).