Flame-retardant structure of environment-friendly veneered plywood
By creating embedded grooves and wedges on both sides of the plywood body, combined with a fireproof mesh layer and sliding connection design, the problem of weak connection between the plywood and the side panels is solved, resulting in a more stable connection, extended service life, and enhanced fireproof and waterproof performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI GUIGANG ZHISHENG WOOD IND CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-19
AI Technical Summary
In the existing flame-retardant structure of environmentally friendly decorative plywood, the connection between the plywood body and the side panels is not strong enough, which affects the service life.
Embedded grooves are symmetrically opened on both sides of the plywood body, and wedges are fixed in the embedded grooves. A fireproof mesh layer is laid. Through the sliding connection of the wedge grooves and the insert plate, combined with the design of springs and push blocks, a stable connection between the plywood body and the side plate is achieved.
It improves the connection strength between the plywood body and the side panels, extends the service life of environmentally friendly decorative plywood, and enhances its fire resistance, heat insulation, and waterproof performance.
Smart Images

Figure CN224374348U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flame-retardant structure technology, specifically to a flame-retardant structure for environmentally friendly decorative plywood. Background Technology
[0002] Plywood is a sheet material consisting of three or more layers of wood, which are rotary-cut into veneers or sliced into thin sheets and then glued together with adhesive. It usually uses an odd number of veneer layers, with the grain direction of adjacent veneers perpendicular to each other. Plywood is one of the commonly used materials for furniture. Plywood can improve the utilization rate of wood and is a major way to save wood.
[0003] While existing flame-retardant structures for environmentally friendly decorative plywood utilize an adhesive layer to bond the plywood body and side panels together, thus fixing the fire-resistant mesh layer within the plywood and enabling it to provide flame retardancy, the limited strength of the connection between the plywood body and side panels—due to the smooth surfaces of both surfaces and the reliance solely on the adhesive layer for fixation—affects the lifespan of the environmentally friendly decorative plywood. Therefore, a novel flame-retardant structure for environmentally friendly decorative plywood is urgently needed to address these issues. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] The technical problem to be solved by this utility model is to provide a flame-retardant structure for environmentally friendly decorative plywood that can improve the connection firmness, in light of the current state of the technology.
[0006] (II) Technical Solution
[0007] This utility model is achieved through the following technical solution: This utility model proposes a flame-retardant structure for environmentally friendly decorative plywood, including a plywood body. Embedding grooves are symmetrically formed on both side walls of the plywood body. Wedges are fixed at equal intervals within the embedding grooves. A fireproof mesh layer is laid at the bottom of the embedding grooves. Connecting grooves are symmetrically formed on both side walls of the plywood body. Insert plates are connected to the connecting grooves facing the embedding grooves. Side plates are provided on both side walls of the plywood body at the embedding grooves. Wedge grooves are formed on the side plates facing the wedges. A connecting plate is fixed at the bottom of the side plates at the connecting grooves. An installation groove is formed on the side wall of the connecting plate facing the insert plate. A spring is provided in the installation groove. A push block is installed at the end of the spring. Slots are formed on both side walls of the side plates corresponding to the push blocks.
[0008] Furthermore, an adhesive layer is connected between the plywood body and the side panels, an adsorption layer is provided inside the plywood body, a flame-retardant layer is coated on the surfaces of the two side panels, and a waterproof layer is provided on the top of the flame-retardant layer.
[0009] Furthermore, the embedding groove is formed on the surface of the plywood body, the wedge is formed at the top of the embedding groove, and the fireproof mesh layer overlaps the embedding groove.
[0010] Furthermore, both the plywood body and the side panel are bonded to the adhesive layer, the adsorption layer is embedded in the inner cavity of the plywood body, the adsorption layer is made of activated carbon, and the flame retardant layer is made of graphite and coated on the surface of the side panel.
[0011] Furthermore, the connecting groove is formed on both sides of the plywood body, the plywood body is slidably connected to the insert plate, and the wedge groove is formed at the bottom end of the side plate.
[0012] Furthermore, the wedge groove is slidably connected to the wedge post, the side plate is bonded to the connecting plate, and the mounting groove is formed on one side wall of the connecting plate.
[0013] Furthermore, both the mounting groove and the push block are connected to the spring bolt, and the slot is formed on both sides of the side plate.
[0014] Furthermore, the dimensions of the push block and the insert plate are adapted to the diameter of the slot hole, and the insert plate is slidably connected to the slot.
[0015] (III) Beneficial Effects
[0016] Compared with the prior art, this utility model has the following advantages:
[0017] This invention features symmetrically designed embedding grooves on both sides of the plywood body. These grooves facilitate the application of a fireproof mesh layer onto the plywood surface. Workers lift the side panel to align the connecting plate with the connecting groove on the plywood body, press the push block to retract it into the mounting groove, and then insert the connecting plate. When the connecting plate is inserted to the bottom of the groove, bringing the push block and the plate to the same horizontal level, the connecting groove on the plywood body releases its restraint on the push block. This allows the spring to reset, ejecting the push block and pushing the plate into the slot. The cooperation between the plate and the slot provides restraint and fixation between the plywood body and the side panel, ensuring the protective mesh is firmly pressed into the embedding groove. This enhances the connection strength between the plywood body and the side panel, preventing poor stability from affecting the lifespan of the environmentally friendly decorative plywood. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the flame-retardant structure of an environmentally friendly decorative plywood according to the present invention;
[0019] Figure 2This is a split view of the plywood body and side panels in the flame-retardant structure of an environmentally friendly decorative plywood according to this utility model.
[0020] Figure 3 This is a top view of the plywood body in the flame-retardant structure of the environmentally friendly decorative plywood described in this utility model.
[0021] Figure 4 This utility model describes a flame-retardant structure for an environmentally friendly decorative plywood. Figure 1 Enlarged view of point A in the middle.
[0022] The annotations in the attached figures are explained as follows:
[0023] 1. Plywood body; 2. Embedded groove; 3. Wedge post; 4. Fireproof mesh layer; 5. Connecting groove; 6. Insert plate; 7. Side plate; 8. Wedge groove; 9. Connecting plate; 10. Mounting groove; 11. Spring; 12. Push block; 13. Slot; 14. Adhesive layer; 15. Adsorption layer; 16. Flame retardant layer; 17. Waterproof layer. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0025] like Figures 1-4As shown, the flame-retardant structure of an environmentally friendly decorative plywood in this embodiment includes a plywood body 1. Embedded grooves 2 are symmetrically formed on both sides of the plywood body 1. Wedges 3 are fixed equidistantly within the embedded grooves 2. A fireproof mesh layer 4 is laid at the bottom of the embedded grooves 2. The embedded grooves 2 facilitate the fixing of the wedges 3 to the plywood body 1, and the fireproof mesh layer 4 allows the environmentally friendly decorative plywood to better perform its fire-resistant and heat-insulating functions. Connecting grooves 5 are symmetrically formed on both sides of the plywood body 1. Insert plates 6 are connected to the embedded grooves 2 within the connecting grooves 5. Side plates 7 are provided on both sides of the plywood body 1 at the embedded grooves 2. Wedge grooves 8 are formed on the side plates 7 facing the wedges 3. A connecting plate 9 is fixed at the bottom of the side plates 7 at the connecting grooves 5. The side plate 9 facing the insert plate 6 has a... The installation groove 10 is provided, and the wedge groove 8 cooperates with the wedge post 3 to make the plywood body 1 and the side plate 7 fit together better. The side plate 7 can fix the connecting plate 9 more firmly. A spring 11 is provided in the installation groove 10, and a push block 12 is installed at the end of the spring 11. The installation groove 10 can make it easier to fix the spring 11 in the connecting plate 9. Pressing the push block 12 can make the spring 11 retract into the installation groove 10. Slots 13 are opened on both sides of the side plate 7 corresponding to the push block 12. The connecting plate 9 is inserted into the bottom of the connecting groove 5, which can remove the limiting effect of the connecting groove 5 on the push block 12. Then, the spring 11 can automatically reset and pop out the push block 12. The pop-out push block 12 can push the insert plate 6 into the slot 13, so that the insert plate 6 can limit the side plate 7 and the plywood body 1 together.
[0026] like Figures 1-4As shown, in this embodiment, an adhesive layer 14 connects the plywood body 1 and the side panels 7. An adsorption layer 15 is disposed inside the plywood body. A flame-retardant layer 16 is coated on the surface of both side panels 7. A waterproof layer 17 is disposed at the top of the flame-retardant layer 16. The adhesive layer 14 can fix the plywood body 1 and the side panels 7 together. The adsorption layer 15 can more easily adsorb the formaldehyde remaining on the environmentally friendly decorative plywood, improving the environmental friendliness of the environmentally friendly decorative plywood in use. The embedded groove 2 is formed on the surface of the plywood body 1. The wedge post 3 is formed at the top of the embedded groove 2. The fireproof mesh layer 4 overlaps on the embedded groove 2. Both the plywood body 1 and the side panels 7 are bonded to the adhesive layer 14. The adsorption layer 15 is embedded in the inner cavity of the plywood body 1. The adsorption layer 15 is made of activated carbon material, and the flame-retardant layer 16 is made of graphite material. The flame-retardant layer 16, applied to the surface of side panel 7, forms a protective layer on the surface of side panel 7 to prevent fire from directly burning the plywood. The waterproof layer 17 enables the environmentally friendly decorative plywood to be waterproof during use. The connecting groove 5 is formed on both sides of the plywood body 1, and the plywood body 1 is slidably connected to the insert plate 6. The wedge groove 8 is formed at the bottom of side panel 7, and the connecting groove 5 makes it easier to splice the plywood body 1 and side panel 7 together. The wedge groove 8 is slidably connected to the wedge post 3, and the side panel 7 is bonded to the connecting plate 9. The mounting groove 10 is formed on one side wall of the connecting plate 9, and the mounting groove 10 and the push block 12 are bolted to the spring 11. The slot 13 is formed on both sides of side panel 7, and the dimensions of the push block 12 and the insert plate 6 are adapted to the hole diameter of the slot 13. The insert plate 6 is slidably connected to the slot 13.
[0027] The specific implementation process of this embodiment is as follows: In use, firstly, the fireproof mesh is laid in the embedding groove 2, and then the adhesive layer 14 is applied to the surface of the plywood body 1 and the wedge post 3. By symmetrically opening the embedding groove 2 on both sides of the plywood body 1, the embedding groove 2 can more easily lay the fireproof mesh layer 4 on the surface of the plywood body 1. The worker lifts the side plate 7 so that the connecting plate 9 is symmetrical with the connecting groove 5 on the plywood body 1, and presses the push block 12 to make it retract into the installation groove 10. Then the connecting plate 9 can be inserted into the connecting groove 5. Inserting the push block 12 into the bottom of the connecting groove 5 so that the push block 12 and the insert plate 6 are at the same level, the connecting groove 5 on the plywood body 1 will release the limit on the push block 12, so that the spring 11 will reset and push the push block 12 out, thus pushing the insert plate 6 into the slot 13. The insert plate 6 and the slot 13 cooperate to limit and fix the plywood body and the side plate 7, so that the side plate 7 can press the protective mesh tightly into the embedded groove 2, improve the firmness of the connection between the plywood body 1 and the side plate 7, and avoid affecting the service life of the environmentally friendly decorative plywood due to poor firmness.
[0028] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A fire-retardant structure of an environmentally friendly veneered plywood, characterized by: The assembly includes a plywood body (1), on which symmetrically arranged embedding grooves (2) are provided on both sides. Wedges (3) are fixed at equal intervals within the embedding grooves (2). A fireproof mesh layer (4) is laid at the bottom of the embedding grooves (2). Connecting grooves (5) are symmetrically arranged on both sides of the plywood body (1). Insert plates (6) are connected to the connecting grooves (5) facing the embedding grooves (2). Side plates (6) are provided on both sides of the plywood body (1) at the embedding grooves (2). 7) The side plate (7) has a wedge groove (8) facing the wedge post (3). The bottom end of the side plate (7) is fixed with a connecting plate (9) at the connecting groove (5). The connecting plate (9) has an installation groove (10) on one side wall facing the insert plate (6). A spring (11) is provided in the installation groove (10). A push block (12) is installed at the end of the spring (11). Slots (13) are provided on both sides of the side plate (7) corresponding to the push block (12).
2. The fire-retardant structure of the environment-friendly veneered plywood according to claim 1, characterized in that: An adhesive layer (14) is connected between the plywood body (1) and the side panel (7). An adsorption layer (15) is provided inside the plywood body. A flame-retardant layer (16) is coated on the surface of the two side panels (7). A waterproof layer (17) is provided at the top of the flame-retardant layer (16).
3. The fire-retardant structure of the environment-friendly veneered plywood according to claim 1, characterized in that: The embedding groove (2) is formed on the surface of the plywood body (1), the wedge (3) is formed on the top of the embedding groove (2), and the fireproof mesh layer (4) overlaps the embedding groove (2).
4. The fire-retardant structure of the environment-friendly veneered plywood according to claim 2, characterized in that: The plywood body (1) and the side panel (7) are both bonded to the adhesive layer (14). The adsorption layer (15) is embedded in the inner cavity of the plywood body (1). The adsorption layer (15) is made of activated carbon material. The flame retardant layer (16) is made of graphite material and coated on the surface of the side panel (7).
5. The flame-retardant structure of an environmentally friendly decorative plywood according to claim 1, characterized in that: The connecting groove (5) is formed on both sides of the plywood body (1), the plywood body (1) is slidably connected to the insert plate (6), and the wedge groove (8) is formed on the bottom of the side plate (7).
6. The flame-retardant structure of an environmentally friendly decorative plywood according to claim 1, characterized in that: The wedge groove (8) is slidably connected to the wedge post (3), the side plate (7) is bonded to the connecting plate (9), and the mounting groove (10) is formed on one side wall of the connecting plate (9).
7. The flame-retardant structure of an environmentally friendly decorative plywood according to claim 1, characterized in that: The mounting groove (10) and the push block (12) are both bolted to the spring (11), and the slot (13) is formed on both sides of the side plate (7).
8. The flame-retardant structure of an environmentally friendly decorative plywood according to claim 1, characterized in that: The dimensions of the push block (12) and the insert plate (6) are adapted to the diameter of the slot (13), and the insert plate (6) is slidably connected to the slot (13).