Fire-resistant and deformation-resistant multi-layer composite floor

Abstract

The utility model discloses a kind of fire-resistant deformation-resistant multilayer composite floor, more particularly to multilayer composite floor technical field, including upper solid wood layer, metal frame, rice-shaped frame, longitudinal stress groove and transverse stress groove, rice-shaped frame is installed in the inner cavity of metal frame, the bottom of solid wood base is provided with longitudinal stress groove, the bottom of upper solid wood layer is provided with transverse stress groove;By respectively setting longitudinal stress groove and transverse stress groove in the bottom of upper solid wood layer and solid wood base, elastic deformation space can be formed, when environmental temperature and humidity change causes wood to produce deformation, the structural gap of strip-shaped groove can provide buffer path for material deformation, avoid stress to accumulate in the interior of base, to avoid the problem that floor appears cracking and arching, by the connection of eight radial arms of rice-shaped frame and metal frame inner wall, local stress concentration in load-bearing area of furniture heavy pressure place can be effectively reduced, can reduce the depression or cracking of floor due to single-point excessive stress.

Description

Technical Field

[0001] This utility model relates to the field of multi-layer composite flooring technology, and more specifically, to a fire-resistant and deformation-resistant multi-layer composite flooring. Background Technology

[0002] Composite flooring is a very important part of home decoration and is the surface layer of the floor. It has become a building material that people are very concerned about. According to its use, flooring can be divided into various types such as residential, commercial and outdoor.

[0003] The existing publication number CN213015156U discloses a deformation-resistant multi-layer composite floor structure, including a load-bearing base plate and an anti-lateral deformation frame assembly installed on the top of the load-bearing base plate near the edge. Reinforcing components are installed at the four corners of the bottom of the load-bearing base plate. Buffer rubber pads are installed at equal intervals on the top of the load-bearing base plate and inside the anti-lateral deformation frame assembly. By installing anti-lateral deformation wooden frames and curved anti-deformation wooden frames on the top of the load-bearing base plate near the edge, the edges are further reinforced, reducing the problem of indentation and deformation when frequently stepped on. The buffer rubber pads, installed at equal intervals on the top of the load-bearing base plate near the center, provide good cushioning when stepped on. The design structure of the buffer rubber pads gradually increases the cushioning strength upon contact, providing good anti-deformation function for the base plate. In the process of realizing this utility model, the inventors discovered the following problems with the existing technology:

[0004] Existing composite flooring is prone to plastic deformation of its internal rubber material under repeated compression loads. After long-term use, the elastic modulus decreases and the cushioning strength gradually weakens. Especially in high-frequency foot traffic and heavy-load areas, single-point heavy pressure may occur. The continuous and loaded compression of the rubber pad can easily lead to the loss of cushioning function, causing the anti-deformation effect to fail, resulting in cracking and arching. In addition, wood is a porous natural material. Its cellular structure can absorb or release moisture from the air. When the ambient humidity increases, the wood absorbs moisture and expands. When the humidity decreases, the moisture evaporates and contracts, resulting in stress. When the tensile stress inside the board exceeds the tensile strength of the wood, longitudinal or transverse cracks are likely to occur. The compressive stress generated by the expansion can cause the board to arch upwards.

[0005] Therefore, a fire-resistant and deformation-resistant multilayer composite flooring is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a fire-resistant and deformation-resistant multi-layer composite floor to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fire-resistant and deformation-resistant multi-layer composite floor, comprising an upper solid wood layer, a metal frame, a star-shaped frame, longitudinal stress grooves and transverse stress grooves, wherein a limiting groove is provided at the front end of the upper solid wood layer, a limiting protrusion is provided at the rear end of the upper solid wood layer, and the metal frame is bonded to the bottom of the upper solid wood layer.

[0008] The star-shaped frame is installed inside the metal frame, and a solid wood base is bonded to the bottom of the metal frame. The longitudinal stress groove is formed at the bottom of the solid wood base, and the transverse stress groove is formed at the bottom of the upper solid wood layer.

[0009] Preferably, the eight radial support arms of the star-shaped frame are connected to the inner wall of the metal frame, and the edge of the star-shaped frame is provided with positioning grooves.

[0010] Preferably, the positioning groove is provided in eight sets, and the inner cavity of each set of positioning grooves is embedded with a layer of rock wool. The eight sets of positioning grooves are distributed around the edge of the cross-shaped frame.

[0011] Preferably, both the longitudinal stress groove and the transverse stress groove are provided in several groups, and the several groups of longitudinal stress grooves and the several groups of transverse stress grooves are distributed at equal intervals.

[0012] Preferably, the metal frame has circular grooves at the four corners of its upper surface, and the upper solid wood layer has cylinders at the four corners of its bottom.

[0013] Preferably, the four sets of cylinders are respectively inserted into the four sets of circular slots to achieve positioning, and the upper solid wood layer is installed on the upper end face of the metal frame through the four sets of cylinders.

[0014] Preferably, the upper end of the solid wood base layer is provided with an installation groove, so the inner cavity of the installation groove is bonded with a buffer layer, and the surface of the buffer layer has a honeycomb structure.

[0015] Preferably, the upper surface of the upper solid wood layer is covered with a nano-wear-resistant coating, and the limiting groove and the limiting protrusion are at the same level and correspond to each other.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. Compared with existing technologies, this fire-resistant and deformation-resistant multi-layer composite flooring is connected to the inner wall of the metal frame through eight radial arms of the cross-shaped frame to form a support. This can evenly distribute the load on the floor surface to the entire frame system, effectively reducing the concentration of local stress in the load-bearing area where furniture is under heavy pressure, and reducing the risk of flooring dents or cracks caused by excessive stress at a single point.

[0018] 2. Compared with existing technologies, this fire-resistant and deformation-resistant multi-layer composite flooring can form an elastic deformation space by opening longitudinal stress grooves and transverse stress grooves at the bottom of the upper solid wood layer and the solid wood base, respectively. When changes in ambient temperature and humidity cause the wood to deform, the structural gaps of the grooves can provide a buffer path for the material deformation, avoiding stress accumulation inside the base, thereby preventing the floor from cracking and buckling. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the overall assembled three-dimensional structure of this utility model.

[0021] Figure 3 This utility model Figure 2 A magnified structural diagram at point A in the diagram.

[0022] Figure 4 This is a three-dimensional structural diagram of the solid wood base layer of this utility model, viewed from below.

[0023] The attached diagram is labeled as follows: 1. Upper solid wood layer; 2. Limiting groove; 3. Limiting protrusion; 4. Metal frame; 5. Star-shaped frame; 51. Positioning groove; 6. Rock wool layer; 7. Solid wood base layer; 8. Longitudinal stress groove; 9. Installation groove; 10. Buffer layer; 11. Transverse stress groove; 12. Nano wear-resistant coating; 13. Column; 14. Circular groove. Detailed Implementation

[0024] 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. Example

[0025] As attached Figures 1 to 4 The fire-resistant and deformation-resistant multi-layer composite flooring shown includes an upper solid wood layer 1, a metal frame 4, a star-shaped frame 5, longitudinal stress grooves 8 and transverse stress grooves 11. A limiting groove 2 is provided at the front end of the upper solid wood layer 1. The upper solid wood layer 1 is made of solid wood and retains the natural wood grain texture. A limiting protrusion 3 is provided at the rear of the upper solid wood layer 1. The limiting groove 2 and the limiting protrusion 3 are at the same level and correspond to each other. The limiting groove 2 and the limiting protrusion 3 of adjacent flooring can be snapped together without additional glue or fasteners. The metal frame 4 is glued to the bottom of the upper solid wood layer 1. The metal frame 4 is made of aluminum alloy to restrain the irregular deformation of the upper solid wood layer 1 and prevent arching, cracking and denting.

[0026] The star-shaped frame 5 is installed inside the metal frame 4. The eight-arm structure of the star-shaped frame 5 decomposes the surface load into radial and circumferential components, which are transmitted to the whole through the metal frame 4. A solid wood base 7 is bonded to the bottom of the metal frame 4. The solid wood base 7 provides a stable base for the upper layer and retains the characteristics of composite wood flooring. A longitudinal stress groove 8 is opened at the bottom of the solid wood base 7. The longitudinal stress groove 8 is opened at the bottom of the solid wood base 7, allowing the solid wood base 7 to buffer the shrinkage stress in the width direction. A transverse stress groove 11 is opened at the bottom of the upper solid wood layer 1. The transverse stress groove 11 extends along the length of the flooring, allowing the upper solid wood layer 1 to expand freely and avoid cracking and arching caused by compression when humidity changes. Example

[0027] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0028] In a preferred embodiment, the eight radial arms of the star-shaped frame 5 are connected to the inner wall of the metal frame 4. The eight arms of the star-shaped frame 5 are rigidly connected to the inner wall of the metal frame 4, forming a mechanical support network similar to umbrella ribs. This evenly distributes the load borne by the upper solid wood layer 1 to the metal frame 4 and the star-shaped frame 5, avoiding local stress concentration and improving the deformation resistance of the floor surface. This is suitable for heavy-load or frequent foot traffic scenarios. The edge of the star-shaped frame 5 is provided with positioning grooves 51. There are eight sets of positioning grooves 51, which are distributed around the edge of the star-shaped frame 5. The positioning grooves 51 are used to install the rock wool layer 6. The inner cavity of each set of positioning grooves 51 is embedded with a rock wool layer 6. The fire resistance limit of the rock wool in the rock wool layer 6 is more than 1 hour, and it also has a sound absorption effect to block heat conduction.

[0029] In a preferred embodiment, both the longitudinal stress groove 8 and the transverse stress groove 11 are provided in several groups. The several groups of longitudinal stress groove 8 and the several groups of transverse stress groove 11 are distributed at equal intervals. The equal interval distribution ensures that each groove bears the same deformation. By pre-setting weak points, the deformation direction of the material is guided, and cracking or warping caused by stress concentration is avoided.

[0030] In a preferred embodiment, circular grooves 14 are provided at the four corners of the upper surface of the metal frame 4, and cylindrical columns 13 are provided at the four corners of the bottom of the upper solid wood layer 1. The four sets of cylindrical columns 13 are inserted into the four sets of circular grooves 14 to achieve positioning. The upper solid wood layer 1 is installed on the upper surface of the metal frame 4 through the four sets of cylindrical columns 13. The cylindrical columns 14 and the circular grooves 13 achieve a directional positioning structure. During installation, the upper solid wood layer 1 and the metal frame 4 can be quickly aligned through physical clamping, avoiding misalignment and providing corresponding anti-displacement effect after assembly.

[0031] In a preferred embodiment, the upper end of the solid wood base layer 7 is provided with an installation groove 9, so a buffer layer 10 is bonded to the inner cavity of the installation groove 9. The buffer layer 10 is bonded to the installation groove 9 on the solid wood base layer 7 to achieve fixation. The surface of the buffer layer 10 has a honeycomb structure, which provides a buffering effect and absorbs the impact force from above to a certain extent. The upper surface of the upper solid wood layer 1 is covered with a nano wear-resistant coating 12. The nano wear-resistant coating 12 enhances hardness through nano ceramic particles, resists daily scratches and friction, and extends the service life of the surface.

[0032] The working process of this utility model is as follows: First, the upper solid wood layer 1 is spliced ​​with the adjacent floorboards by the limiting groove 2 at the front end and the limiting protrusion 3 at the rear. The two are horizontally corresponding to form a plug-in structure, which can be quickly installed without glue and ensures tight joints. The cylinders 13 at the four corners of the bottom of the upper solid wood layer 1 are inserted into the round grooves 14 at the four corners of the upper end face of the metal frame 4. Precise positioning is achieved through physical locking. This can quickly align the upper solid wood layer 1 and the metal frame 4 during installation and bond them with glue. It can also prevent relative displacement between the two during use. The metal frame 4 is made of aluminum alloy and is bonded to the bottom of the upper solid wood layer 1. With its own high strength, it restrains the irregular deformation of the upper solid wood layer 1 and prevents it from arching or sinking.

[0033] The star-shaped frame 5 installed inside the metal frame 4 has eight radial arms rigidly connected to the inner wall of the frame, forming a mechanical support network similar to umbrella ribs. This network decomposes the load borne by the upper solid wood layer 1 into radial and circumferential components, which are then evenly transmitted to the overall structure through the metal frame 4. Eight sets of positioning grooves 51 are distributed around the edge of the star-shaped frame 5. The embedded rock wool layer 6 is fire-resistant for more than 1 hour. The solid wood base 7 below the metal frame 4 provides a stable foundation for the upper layer. The honeycomb structure buffer layer 10 bonded in the groove 9 at its upper end can absorb the impact of footsteps. The impact force generated, when the ambient temperature and humidity change, the longitudinal stress groove 8 at the bottom of the solid wood base 7 extends along the width of the floor, allowing the solid wood base 7 to buffer the shrinkage stress in the width direction. The transverse stress groove 11 at the bottom of the upper solid wood layer 1 extends along the length of the floor, allowing the upper solid wood layer 1 to expand freely and prevent it from arching when the humidity rises. The nano wear-resistant coating 12 covering the surface of the upper solid wood layer 1 enhances the hardness through nano ceramic particles, which can resist daily scratches and friction. The above is the working principle of this fire-resistant and deformation-resistant multi-layer composite floor.

Claims

1. A fire-resistant and deformation-resistant multi-layer composite floor, comprising an upper solid wood layer (1), a metal frame (4), a star-shaped frame (5), longitudinal stress grooves (8), and transverse stress grooves (11), characterized in that: A limiting groove (2) is provided at the front end of the upper solid wood layer (1), a limiting protrusion (3) is provided at the rear of the upper solid wood layer (1), and the metal frame (4) is bonded to the bottom of the upper solid wood layer (1). The cross-shaped frame (5) is installed in the inner cavity of the metal frame (4). A solid wood base layer (7) is bonded to the bottom of the metal frame (4). The longitudinal stress groove (8) is opened at the bottom of the solid wood base layer (7), and the transverse stress groove (11) is opened at the bottom of the upper solid wood layer (1).

2. The fire-resistant and deformation-resistant multi-layer composite flooring according to claim 1, characterized in that: The eight radial arms of the star-shaped frame (5) are connected to the inner wall of the metal frame (4), and the edge of the star-shaped frame (5) is provided with positioning grooves (51).

3. The fire-resistant and deformation-resistant multi-layer composite flooring according to claim 2, characterized in that: The positioning groove (51) is provided in eight sets, and the inner cavity of each positioning groove (51) is embedded with a rock wool layer (6). The eight sets of positioning grooves (51) are distributed around the edge of the cross-shaped frame (5).

4. The fire-resistant and deformation-resistant multi-layer composite flooring according to claim 1, characterized in that: Both the longitudinal stress groove (8) and the transverse stress groove (11) are provided in several groups, and the several groups of longitudinal stress groove (8) and the several groups of transverse stress groove (11) are distributed at equal intervals.

5. The fire-resistant and deformation-resistant multi-layer composite flooring according to claim 2, characterized in that: The metal frame (4) has a circular groove (14) at each of the four corners of its upper surface, and the upper solid wood layer (1) has a column (13) at each of the four corners of its bottom.

6. The fire-resistant and deformation-resistant multi-layer composite flooring according to claim 5, characterized in that: The four sets of cylinders (13) are respectively inserted into the four sets of circular grooves (14) to achieve positioning, and the upper solid wood layer (1) is installed on the upper end face of the metal frame (4) through the four sets of cylinders (13).

7. The fire-resistant and deformation-resistant multi-layer composite flooring according to claim 1, characterized in that: The upper end of the solid wood base (7) is provided with an installation groove (9), so the inner cavity of the installation groove (9) is bonded with a buffer layer (10), and the surface of the buffer layer (10) has a honeycomb structure.

8. The fire-resistant and deformation-resistant multi-layer composite flooring according to claim 7, characterized in that: The upper surface of the solid wood layer (1) is covered with a nano wear-resistant coating (12), and the limiting groove (2) and the limiting protrusion (3) are at the same level and correspond to each other.

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