Flame-retardant wood-plastic floor

Abstract

The utility model discloses a flame-retardant wood-plastic floor, which relates to the related technical field of wood-plastic floors, and comprises an inner core plate, two outer side cover plates, a side covering flame-retardant film and an uncovering flame-retardant sticker, the two outer side cover plates are respectively arranged on the upper end face and the lower end face of the inner core plate, the outer side cover plates are fixedly connected with the inner core plate, and the uncovering flame-retardant film is arranged on the inner core plate. The two side covering flame-retardant films are arranged on the front end face and the rear end face of the inner core plate and the front end face and the rear end face of the outer side cover plate respectively, the side covering flame-retardant films are fixedly connected with the front end face and the rear end face of the inner core plate and the front end face and the rear end face of the outer side cover plate respectively, and the two uncovering flame-retardant stickers are arranged on the left side face and the right side face of the inner core plate and the left side face and the right side face of the outer side cover plate respectively. The removable flame-retardant stickers are connected with the left and right side surfaces of the inner core plate and the outer side cover plate, a plurality of keel strips are arranged in the inner core plate, and the keel strips are uniformly distributed in the inner core plate and are fixedly connected with the inner core plate. The flame-retardant wood-plastic composite board has the beneficial effects that the flame-retardant effect of a cut part can be improved, and the problems of fragility and weak toughness of wood-plastic can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field related to wood plastic flooring, in particular to a flame retardant wood plastic flooring. Background Art

[0002] Wood-plastic board (WPC) is a high-tech, green, and environmentally friendly decorative material primarily made from wood (cellulose, plant cellulose) as a base material, thermoplastic polymers (plastics), and processing aids. This material is then heated and extruded through a mold. It combines the properties and characteristics of both wood and plastic, making it a promising alternative composite material. However, conventional WPC flooring requires cutting during installation due to room dimensions. This cut section lacks flame-retardant components, reducing its effectiveness. WPC also has significant drawbacks: it is relatively fragile and lacks toughness.

[0003] Chinese patent publication number CN221256012U, with an authorized publication date of July 2, 2024, discloses a scald-resistant PVC wood-plastic flooring. The scald-resistant PVC wood-plastic flooring comprises an upper polytetrafluoroethylene (PTFE) film and an upper color film layer, arranged sequentially from top to bottom. Four side polytetrafluoroethylene (PTFE) films are arranged in a ring around the lower end of the upper polytetrafluoroethylene (PTFE) film, and four side color film layers are arranged in a ring around the lower end of the upper color film layer. This utility model addresses the problem of existing stone honeycomb panels causing shrinkage and damage due to high temperatures after being exposed to flames, and their inability to withstand prolonged flames and high-temperature exposure. The utility model utilizes metal brackets within the flooring to support, pull, and restrain the upper and surrounding polytetrafluoroethylene (PTFE) films, thereby simultaneously resisting high-temperature burns. However, the disadvantages of this utility model are that it fails to provide flame retardancy in cut areas and fails to address the fragility and toughness of the wood-plastic flooring. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art that the flame retardant effect of the cut parts cannot be made up and the wood plastic has the problems of fragility and toughness, and provides a flame retardant wood plastic floor that can make up for the flame retardant effect of the cut parts and reduce the problems of fragility and weak toughness of the wood plastic.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A flame-retardant wood-plastic floor comprises an inner core board, an outer cover board, a side flame-retardant film and a removable flame-retardant sticker. The outer cover board has two pieces and is respectively placed on the upper and lower end surfaces of the inner core board. The outer cover board is fixedly connected to the inner core board. The side flame-retardant film has two pieces and is respectively placed on the front and rear end surfaces of the inner core board and the outer cover board. The side flame-retardant film is respectively fixedly connected to the front and rear end surfaces of the inner core board and the outer cover board. The removable flame-retardant sticker has two pieces and is respectively placed on the left and right side surfaces of the inner core board and the outer cover board. The removable flame-retardant sticker is connected to the left and right side surfaces of the inner core board and the outer cover board. A plurality of keel strips are provided in the inner core board. The keel strips are evenly distributed in the inner core board and fixedly connected to the inner core board.

[0007] The main materials of the inner core board and the outer cover board are both wood plastic. After the inner core board and the outer cover board are combined, they are covered with side flame retardant film on the front and back sides. General flooring needs to be snapped together, and removable flame retardant stickers are covered on the left and right sides of the snapping. If cutting is required, the removable flame retardant sticker on the cut side is peeled off and re-applied to the cut. The keel strips in the inner core board can also increase the toughness and strength of the inner core board, achieving the purpose of filling the flame retardant effect of the cut part and reducing the fragility and weak toughness of the wood plastic.

[0008] Preferably, a fire-resistant coating layer is provided on the outer surface of the outer cover plate, and the fire-resistant coating layer covers the entire outer side surface of the outer cover plate. The fire-resistant coating layer can provide the outer cover plate with a fire-resistant coating, thereby achieving a fire-proof effect.

[0009] Preferably, the outer cover plate is provided with an outer flame retardant film, the fire resistant coating layer is disposed between the outer flame retardant film and the outer cover plate, and the outer flame retardant film covers the entire outer side of the outer cover plate and is fixedly connected to the outer cover plate. The outer flame retardant film provides the outer cover plate with a second layer of flame retardancy, thereby enhancing the flame retardant effect.

[0010] Preferably, the inner core plate is provided with grooves, with multiple grooves evenly spaced on the upper and lower ends of the inner core plate. The inner side surface of the outer cover plate is provided with multiple clips, which are integrally formed with the outer cover plate and correspond one-to-one with the grooves. The inner core plate is clipped to the outer cover plate via the grooves and clips, with the directions of the grooves and clips being perpendicular to the direction of the keel strips. The clips and grooves allow the outer cover plate to be more tightly connected to the inner core plate. The directions of the grooves and clips being perpendicular to the direction of the keel strips increase both the elasticity and toughness of the wood-plastic flooring.

[0011] Preferably, the groove has a triangular cross-section, and the clip has a cross-section corresponding to the groove, with the clip being positioned within the groove. The triangular cross-section of the groove facilitates the attachment of the clip head, increases the free space between the outer cover and the inner core, and enhances the flexibility of the wood-plastic flooring.

[0012] Preferably, the inner core board is provided with through holes, which are multiple and evenly distributed in the inner core board, and the direction of the through holes is perpendicular to the direction of the keel strips. The through holes are convenient for reducing the weight of the wood plastic floor and increasing the flexibility of the floor.

[0013] The beneficial effects of the utility model are: it can make up for the flame retardant effect of the cut part and reduce the problem of fragility and weak toughness of wood plastic; the fire-resistant coating layer can give the outer cover plate a layer of fire retardant coating, and the outer cover plate has a fire retardant effect; the outer flame retardant film can give the outer cover plate a second layer of flame retardant measures, thereby increasing the flame retardant effect; the clips and grooves can make the outer cover plate and the inner core plate more tightly connected, and the direction of the grooves and the direction of the clips are perpendicular to the direction of the keel strips, which will increase the elasticity and toughness of the wood plastic floor; the cross-sectional shape of the grooves is triangular, which is convenient for clamping the clip head, and can also increase the activity space between the outer cover plate and the inner core plate, thereby increasing the flexibility of the wood plastic floor; the through holes can conveniently reduce the weight of the wood plastic floor and increase the flexibility of the floor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a cross-sectional view of the main view of the present utility model;

[0016] Figure 3 yes Figure 2 Enlarged view of detail A

[0017] Figure 4 It is a sectional view of the side view of the present utility model.

[0018] Figure: 1. Inner core board, 2. Outer cover board, 3. Side flame-retardant film, 4. Removable flame-retardant sticker, 5. Keel, 6. Fire-resistant coating layer, 7. Outer flame-retardant film, 8. Groove, 9. Clip, 10. Through hole. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1 、 Figure 2 and Figure 4In the embodiment, a flame-retardant wood plastic floor is provided, which includes an inner core board 1, an outer cover board 2, a side flame-retardant film 3 and a removable flame-retardant patch 4. The outer cover board 2 has two pieces and is respectively placed on the upper and lower end surfaces of the inner core board 1, and the outer cover board 2 is fixedly connected to the inner core board 1. The side flame-retardant film 3 has two pieces and is respectively placed on the front and rear end surfaces of the inner core board 1 and the outer cover board 2. The side flame-retardant film 3 is respectively fixedly connected to the front and rear end surfaces of the inner core board 1 and the outer cover board 2. The removable flame-retardant patch 4 has two pieces and is respectively placed on the left and right side surfaces of the inner core board 1 and the outer cover board 2. The removable flame-retardant patch 4 is connected to the left and right side surfaces of the inner core board 1 and the outer cover board 2. A plurality of keel strips 5 are provided in the inner core board 1, and the keel strips 5 are evenly distributed in the inner core board 1 and fixedly connected to the inner core board 1.

[0021] like Figure 3 As shown, a fire-resistant coating layer 6 is provided on the outer surface of the outer cover plate 2 , and the fire-resistant coating layer 6 covers the entire outer side surface of the outer cover plate 2 .

[0022] like Figures 1 to 4 As shown, an outer flame retardant film 7 is provided on the outer cover plate 2, and a fire-resistant coating layer 6 is placed between the outer flame retardant film 7 and the outer cover plate 2. The outer flame retardant film 7 covers the entire outer side surface of the outer cover plate 2 and is fixedly connected to the outer cover plate 2.

[0023] like Figure 2 and Figure 3 As shown, the inner core board 1 is provided with a groove 8, and there are several grooves 8 that are evenly placed on the upper and lower end surfaces of the inner core board 1. A number of clips 9 are provided on the inner side surface of the outer cover board 2. The clips 9 and the outer cover board 2 are integrally formed, and the clips 9 correspond to the grooves 8 one by one. The inner core board 1 is clamped with the outer cover board 2 through the grooves 8 and the clips 9. The directions of the grooves 8 and the clips 9 are both perpendicular to the direction of the keel bar 5.

[0024] like Figure 3 As shown, the cross-sectional shape of the groove 8 is triangular, the cross-sectional shape of the clamping strip 9 corresponds to the cross-sectional shape of the groove 8 , and the clamping strip 9 is placed in the groove 8 .

[0025] like Figure 4 As shown, the inner core board 1 is provided with through holes 10 , and there are a plurality of through holes 10 that are evenly distributed in the inner core board 1 , and the direction of the through holes 10 is perpendicular to the direction of the keel strip 5 .

[0026] The main materials of the inner core board 1 and the outer cover board 2 are both wood plastic. The inner core board 1 and the outer cover board 2 are fixed by means of grooves 8 and card strips 9. The outer side of the outer cover board 2 is provided with a fire-resistant coating layer 6 and an outer flame retardant film 7 for double protection to increase the flame retardancy of the wood plastic floor. The side flame retardant film 3 is then covered on the front and back sides. The general floor needs to be clamped, and the left and right sides to be clamped are covered with a peelable flame retardant sticker 4. If cutting is required, the peelable flame retardant sticker 4 on the cut side will be peeled off and re-covered on the incision. In this way, a flame retardant effect is achieved in any part of the wood plastic floor, and even if it is cut, it will not be affected much. The keel strips 5 and through holes 10 in the inner core board 1 can also increase the toughness and strength of the inner core board. The through holes 19 also have the effect of reducing weight, thereby achieving the purpose of making up for the flame retardant effect of the cut part and reducing the problem of fragility and weak toughness of the wood plastic.

Claims

1. A flame retardant wood plastic floor, characterized by: The invention comprises an inner core plate (1), an outer cover plate (2), a side flame retardant film (3) and a removable flame retardant patch (4), wherein the outer cover plate (2) has two pieces and is respectively placed on the upper and lower end surfaces of the inner core plate (1), and the outer cover plate (2) is fixedly connected to the inner core plate (1), the side flame retardant film (3) has two pieces and is respectively placed on the front and rear end surfaces of the inner core plate (1) and the outer cover plate (2), and the side flame retardant film (3) is respectively fixedly connected to the front and rear end surfaces of the inner core plate (1) and the outer cover plate (2), the removable flame retardant patch (4) has two pieces and is respectively placed on the left and right side surfaces of the inner core plate (1) and the outer cover plate (2), and the removable flame retardant patch (4) is connected to the left and right side surfaces of the inner core plate (1) and the outer cover plate (2), and the inner core plate (1) is provided with a plurality of keel strips (5), and the keel strips (5) are evenly distributed in the inner core plate (1) and are fixedly connected to the inner core plate (1).

2. The flame-retardant wood plastic flooring according to claim 1, characterized in that: A fire-resistant coating layer (6) is provided on the outer surface of the outer cover plate (2), and the fire-resistant coating layer (6) covers the entire outer side surface of the outer cover plate (2).

3. The flame-retardant wood plastic flooring according to claim 2, characterized in that: An outer flame retardant film (7) is provided on the outer cover plate (2), the fire resistant coating layer (6) is placed between the outer flame retardant film (7) and the outer cover plate (2), and the outer flame retardant film (7) covers the outer side surface of the entire outer cover plate (2) and is fixedly connected to the outer cover plate (2).

4. The flame-retardant wood plastic flooring according to claim 1, characterized in that: The inner core plate (1) is provided with a groove (8), and the grooves (8) have a plurality of strips and are evenly arranged on the upper and lower end surfaces of the inner core plate (1). The inner side surface of the outer cover plate (2) is provided with a plurality of clip strips (9), and the clip strips (9) and the outer cover plate (2) are integrally formed. The clip strips (9) correspond to the grooves (8) one by one. The inner core plate (1) is clipped to the outer cover plate (2) through the grooves (8) and the clip strips (9), and the directions of the grooves (8) and the clip strips (9) are both perpendicular to the direction of the keel strip (5).

5. The flame-retardant wood plastic flooring according to claim 4, characterized in that: The cross-sectional shape of the groove (8) is triangular, the cross-sectional shape of the clamping strip (9) corresponds to the cross-sectional shape of the groove (8), and the clamping strip (9) is placed in the groove (8).

6. The flame-retardant wood plastic flooring according to claim 1, characterized in that: The inner core plate (1) is provided with through holes (10), and there are a plurality of through holes (10) evenly distributed in the inner core plate (1), and the direction of the through holes (10) is perpendicular to the direction of the keel strip (5).

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