Floor structure with anti-deformation function

By setting anti-deformation grooves on the base plate and water-absorbing expansion bodies in the buffer layer, the deformation problem caused by internal stress in the floor structure under high humidity environment is solved, achieving a more uniform distribution of internal stress and reducing the risk of deformation.

CN223974844UActive Publication Date: 2026-03-06梁惠文
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

In high humidity environments, the existing floor structure experiences internal stress due to the expansion of the panels and backing boards caused by moisture absorption, leading to deformation of the wood panels.

Method used

Anti-deformation grooves and buffer layers are set on the base plate. The buffer layer contains water-absorbing expansion bodies. The dovetail tenon and the water-absorbing expansion bodies form a tight fit to offset the internal stress.

Benefits of technology

It reduces the internal stress generated in the wood panels when humidity changes, lowers the risk of deformation, and improves the deformation resistance of the floor structure.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223974844U_ABST
    Figure CN223974844U_ABST
Patent Text Reader

Abstract

The utility model discloses a floor structure with an anti-deformation function, which comprises a bottom plate and a panel, a plurality of dovetail tenons are arranged in parallel along the width direction of the panel, mounting grooves for the dovetail tenons to be jointed one by one are formed in the bottom plate, a plurality of anti-deformation grooves are formed in parallel in the bottom plate between the adjacent mounting grooves, and the anti-deformation grooves are formed in the bottom plate between the adjacent mounting grooves. The anti-deformation groove is perpendicular to the mounting groove, and a buffer layer used for buffering acting force of the dovetail joint is arranged in the mounting groove. According to the floor structure with the anti-deformation function, the anti-deformation groove is formed in the bottom plate, a space can be formed when the wood plate shrinks and expands, and therefore generation of internal stress can be reduced. Meanwhile, the anti-deformation grooves can change the internal stress distribution of the wood board; in addition, when the humidity is increased, the dovetail joint and the water absorption expansion body absorb water to form an expansion state, the dovetail joint and the mounting groove are in close fit through the dual expansion effect, internal stress generated by wood can be partially offset through contraction of the expansion body, and the deformation risk is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model particularly relates to a floor structure with anti-deformation function. Background Technology

[0002] The existing base plate structure includes a front panel and a back panel, which are fixed together by dovetail joints. Although the dovetail joint is a high-strength joint method, the following problems may occur in practical applications: when the ambient humidity is high, the front panel and the back panel absorb moisture and expand in volume, thereby generating internal stress and causing the wood board to deform. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a floor structure with anti-deformation function.

[0004] To solve the aforementioned technical problems, this utility model adopts the following technical solution:

[0005] A floor structure with anti-deformation function includes a base plate and a panel. Multiple dovetail tenons are arranged parallel to each other along the width direction of the panel. An installation groove is provided on the base plate for the dovetail tenons to be joined one by one. Multiple anti-deformation grooves are arranged parallel to each other on the base plate between adjacent installation grooves. The anti-deformation grooves are arranged perpendicular to the installation grooves. A buffer layer for buffering the force of the dovetail tenons is provided in the installation groove.

[0006] Preferably, the buffer layer includes a limiting groove formed on the side wall of the mounting groove, and a water-absorbing expansion body is limited in the limiting groove.

[0007] Preferably, the material of the water-absorbing swelling body is a polyurethane-based water-absorbing resin.

[0008] Preferably, the mounting groove sidewall has a limiting groove corresponding to the tenon end of the dovetail tenon, which is fitted with a water-absorbing expansion body with an expansion rate of 150%.

[0009] Preferably, the mounting groove sidewall has a water-absorbing expansion body with an expansion rate of 80% corresponding to the limiting groove of the dovetail neck.

[0010] The beneficial effects of this utility model are:

[0011] This application discloses a floor structure with anti-deformation function. Anti-deformation grooves are formed in the base plate, providing space for the wood to contract and expand, thus reducing internal stress. Simultaneously, the anti-deformation grooves alter the distribution of internal stress in the wood, making it more evenly distributed and further reducing the risk of deformation. Furthermore, when humidity increases, both the dovetail joint and the water-absorbing expansion body absorb moisture and expand. This dual expansion effect ensures a tight fit between the dovetail joint and the mounting groove. The contraction of the expansion body partially offsets the internal stress generated by the wood, reducing the risk of deformation. Attached Figure Description

[0012] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0013] Figure 1 This is a schematic diagram of a floor structure with anti-deformation function according to this application. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of a floor structure with anti-deformation function according to this application. Figure 2 ;

[0015] Figure 3 This is a schematic diagram of a floor structure with anti-deformation function according to this application. Figure 3 ;

[0016] Figure 4 This is a schematic diagram of a floor structure with anti-deformation function according to this application. Figure 4 ;

[0017] Figure 5 This is a schematic diagram of a floor structure with anti-deformation function according to this application. Figure 5 . Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0019] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.

[0020] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, soldering, snap-fitting, or embedding to suitably replace it.

[0021] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.

[0022] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, casting, wire cutting, laser cutting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.

[0023] A floor structure with anti-deformation function, as shown in the reference Figures 1-5 It includes a base plate 1 and a panel 2. Multiple dovetail tenons 3 are arranged parallel to each other along the width direction of the panel 2. The base plate 1 is provided with mounting grooves 4 for the dovetail tenons 3 to be joined one by one. Multiple anti-deformation grooves 5 are arranged parallel to each other on the base plate 1 between adjacent mounting grooves 4. The anti-deformation grooves 5 are arranged perpendicular to the mounting grooves 4. A buffer layer for buffering the force of the dovetail tenons 3 is provided in the mounting grooves 4.

[0024] Furthermore, the buffer layer includes a limiting groove 61 formed on the side wall of the mounting groove 4, and a water-absorbing expansion body 62 is limited in the limiting groove 61.

[0025] Furthermore, the material of the water-absorbing swelling body 62 is a polyurethane-based water-absorbing resin.

[0026] Furthermore, a water-absorbing and expanding body 62 with an expansion rate of 150% is limited in the limiting groove 61 corresponding to the tenon end 1-1 of the dovetail tenon 3 on the side wall of the mounting groove 4.

[0027] Furthermore, the side wall of the mounting groove 4 is fitted with a water-absorbing expansion body 62 with an expansion rate of 80% in the limiting groove 61 corresponding to the neck 1-2 of the dovetail tenon 3.

[0028] The working principle of this utility model is as follows:

[0029] like Figure 1As shown, this is a schematic diagram illustrating the assembled structure of panel 2, base plate 1, dovetail tenons 3, mounting grooves 4, and anti-deformation grooves 5. This application provides multiple dovetail tenons 3 on panel 2 and mounting grooves 4 on base plate 1 corresponding to the dovetail tenons 3. The mounting grooves 4 are arranged parallel to each other. (For installation, the dovetail tenons 3 can be installed in the mounting grooves 4 first, then glue is applied to panel 2, and the panel is pressed together to fix the panel to the dovetail tenons 3 and base plate 1. The assembled effect is as shown.) Figure 1 As shown, multiple anti-deformation grooves 5 are provided between adjacent mounting grooves 4, and the anti-deformation grooves 5 are set perpendicular to the mounting grooves 4. Because wood will shrink and expand with changes in ambient humidity, the wood will shrink when the humidity decreases and expand when the humidity increases. Since the base plate 1 and the panel 2 are connected and fixed by dovetail joints 3, this shrinkage and expansion will be restricted, thereby generating internal stress and causing the wood to deform. Therefore, this application provides anti-deformation grooves 5 on the base plate 1, which can provide space for the wood to shrink and expand, thus reducing the generation of internal stress. At the same time, the grooves can also change the distribution of internal stress in the wood, making the internal stress more evenly distributed on the wood, further reducing the risk of deformation. In this technical solution, it is preferable to set the dovetail joint and the panel as an integral structure.

[0030] In the above technical solution, this application provides a buffer layer on the side wall of the mounting groove 4. As an example 1, the buffer layer can be provided with a limiting groove 61 on the inner side wall of the mounting groove 4. The limiting groove 61 corresponds to water-absorbing and expanding bodies 62 with different expansion rates. During the test, it was found that the head of the dovetail 3 is the location of internal stress concentration. During the jointing process, the compressive stress of the head is large, which may lead to local damage. Therefore, this application limits a high water-absorbing and expanding body 62 in the limiting groove 61 near the tenon end 1-1 of the dovetail 3 on the side wall of the mounting groove 4. It is preferably a polyurethane-based water-absorbing resin with an expansion rate of 150%. The neck 1-2 of the dovetail 3 is a narrow part connecting the head and the root. It is prone to high shear stress due to its small cross-sectional size. The internal stress distribution of the neck is closely related to shear and bending stress. Therefore, this application limits a water-absorbing and expanding body 62 with an expansion rate of 80% in the limiting groove 61 near the neck 1-2 of the dovetail 3 on the side wall of the mounting groove 4. The root of the dovetail tenon 3 is relatively narrow, mainly used to provide tie force. The internal stress at the root is mainly related to the overall stability of the structure, and its stress distribution is relatively uniform. When the humidity increases, both the dovetail tenon 3 and the water-absorbing expansion body 62 absorb moisture and expand. The double expansion effect makes the dovetail tenon 3 and the mounting groove 4 fit tightly. The shrinkage of the expansion body can partially offset the internal stress generated by the wood and reduce the risk of deformation.

[0031] The floor structure of this application features an anti-deformation groove 5 on the base plate 1. This groove provides space for the wood panels (base plate and top plate) to expand and contract, thus reducing internal stress. Simultaneously, the anti-deformation groove 5 alters the distribution of internal stress in the wood panels, making it more evenly distributed and further reducing the risk of deformation. Furthermore, when humidity increases, both the dovetail tenon 3 and the water-absorbing expansion body 62 absorb moisture and expand. This dual expansion action ensures a tight fit between the dovetail tenon 3 and the mounting groove 4. The contraction of the expansion body partially offsets the internal stress generated by the wood, further reducing the risk of deformation.

[0032] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A floor structure having a deformation resistance function, characterized by, The application relates to a bottom plate (1) and a face plate (2), a plurality of dovetail tenons (3) are arranged in parallel along the width direction of the face plate (2), mounting grooves (4) for engaging the dovetail tenons (3) are formed in the bottom plate (1), a plurality of anti-deformation grooves (5) are arranged in parallel on the bottom plate (1) between the adjacent mounting grooves (4), the anti-deformation grooves (5) are arranged perpendicularly to the mounting grooves (4), and a buffer layer for buffering the force of the dovetail tenons (3) is arranged in the mounting grooves (4).

2. The floor structure having a deformation resistance function according to claim 1, wherein, The buffer layer comprises limiting grooves (61) formed in the side walls of the mounting grooves (4), and water-absorbing expansion bodies (62) are limited in the limiting grooves (61).

3. The floor structure having a deformation resistance function according to claim 2, wherein The material of the water-absorbing expansion bodies (62) is polyurethane-based water-absorbing resin.

4. The floor structure having a deformation resistance function according to claim 2, wherein The limiting grooves (61) corresponding to the tenon head ends (1-1) of the dovetail tenons (3) in the side walls of the mounting grooves (4) limit the water-absorbing expansion bodies (62) with an expansion rate of 150%.

5. The floor structure having a deformation resistance function according to claim 2, wherein The limiting grooves (61) corresponding to the tenon neck portions (1-2) of the dovetail tenons (3) in the side walls of the mounting grooves (4) limit the water-absorbing expansion bodies (62) with an expansion rate of 80%.