Flame-retardant wood-plastic co-extrusion profile

Abstract

The utility model relates to the technical field of composite sectional materials, in particular to a flame-retardant wood-plastic co-extrusion sectional material which comprises a sectional material body, connecting grooves are formed in the two sides of the sectional material body, a plurality of anti-skid grooves are formed in the sectional material body, a first flame-retardant layer wraps the outer wall of the sectional material body, a load reducing groove is formed in the sectional material body, and a second flame-retardant layer wraps the outer wall of the first flame-retardant layer. A plurality of supporting columns are arranged in the load reducing groove at intervals to form a plurality of partition openings, second flame-retardant layers are arranged on the inner walls of the partition openings, the load reducing groove is formed in the profile body, so that the weight of the profile is reduced, the second flame-retardant layers are arranged in the partition openings, wood plastic in the partition openings is prevented from being ignited, meanwhile, flame spreading is avoided, and the service life of the profile is prolonged. And the reinforcing parts are arranged on the two sides of the supporting column, so that the strength of the supporting column is improved, the overall strength of the sectional material is improved, the sectional material is prevented from being damaged in the using process, and the service life of the sectional material is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of composite profiles, in particular to a flame-retardant wood-plastic co-extruded profile. Background Art

[0002] As people's awareness of environmental protection increases, environmentally friendly, degradable and recyclable plastic wood materials are receiving more and more attention. It is made of agricultural and forestry waste as the main raw material, and is compounded with plastic after adding a small amount of additives. It has many advantages, such as: the material is homogeneous, the size is more stable than wood, it is not easy to crack, and it will not absorb moisture and deform; it has the processability of thermoplastics, and extrusion, molding, injection molding and other processes can be used for molding, and the equipment wear is small; it has the secondary processability of wood: it can be sawed, planed and bonded or fixed with nails and bolts; it does not need to be treated with toxic chemicals and does not contain formaldehyde; it is not afraid of insect infestation, aging resistance, and corrosion resistance; it has the appearance of wood and higher hardness than plastic products. One of its very important application areas is to use it as outdoor flooring.

[0003] In order to improve the safety of existing wood-plastic co-extruded profiles, the wood-plastic co-extruded profiles are usually flame-retardant treated. For example, Chinese patent publication number CN203878913U discloses "a flame-retardant wood-plastic co-extruded profile", which improves the safety and fireproof performance of the wood-plastic composite material by coating the surface of the wood-plastic co-extruded profile with a flame-retardant layer, and provides a middle square hole in the middle of the wood-plastic profile, which can not only support and strengthen the entire profile core, but also play a role in drainage when used in outdoor buildings, greatly expanding the application range of the wood-plastic composite material;

[0004] However, in actual use, although the square hole part in the middle of the wood-plastic profile can reduce the weight of the profile and play a role in drainage, the square hole part is easy to be ignited, and it is easy to conduct and spread the flame when burning, causing the flame to spread and form a fire, which poses a safety hazard. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art that the square hole in the middle of the wood-plastic profile is easy to be ignited, the flame is easy to spread and there is a safety hazard, and proposes a flame-retardant wood-plastic co-extruded profile.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A flame-retardant wood-plastic co-extruded profile is designed, comprising a profile body, both sides of the profile body are provided with connecting grooves, the profile body is provided with a plurality of anti-slip grooves, the outer wall of the profile body is wrapped with a first flame-retardant layer, the profile body is provided with a load-reducing groove, a plurality of support columns are arranged at intervals in the load-reducing groove to form a plurality of partition openings, and the inner walls of the partition openings are provided with a second flame-retardant layer.

[0008] Furthermore, reinforcement columns are fixedly provided at the upper and lower ends of the partition opening.

[0009] Furthermore, reinforcement parts are provided on both sides of the support column, and the reinforcement parts are integrally formed with the support column.

[0010] Furthermore, anti-slip grooves are provided at the upper and lower ends of the connecting groove.

[0011] Furthermore, a connecting piece is movably plugged into the connecting groove, and clamping pieces cooperating with the anti-slip groove are fixedly provided at both ends of the connecting piece.

[0012] Furthermore, a plurality of load-reducing holes are provided on the profile body, and a second flame-retardant layer is also provided in the load-reducing holes.

[0013] Furthermore, the first flame retardant layer is a modified high-chlorine polyethylene fire retardant paint, and the second flame retardant layer is a polytetrafluoroethylene propylene layer.

[0014] The flame retardant wood-plastic co-extruded profile proposed by the utility model has the following beneficial effects:

[0015] In the utility model, the weight of the profile is reduced by opening a load-reducing groove on the profile body, and a second flame-retardant layer is provided in the partition opening to prevent the wood-plastic in the partition opening from being ignited and prevent the flame from spreading, thereby increasing safety and reducing property losses;

[0016] Secondly, in the utility model, by providing reinforcement parts on both sides of the support column, the strength of the support column is increased, the overall strength of the profile is increased, the profile is prevented from being damaged during use, and the service life of the profile is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a flame retardant wood-plastic co-extruded profile proposed by the utility model;

[0018] Figure 2 This is a schematic structural diagram of the second flame retardant layer of the utility model.

[0019] In the figure: 1. Profile body; 11. First flame retardant layer; 12. Load-reducing hole; 2. Connection groove; 3. Anti-slip groove; 4. Load-reducing groove; 5. Support column; 51. Partition opening; 52. Reinforcement column; 6. Reinforcement part; 7. Second flame retardant layer; 8. Anti-slip groove; 9. Connector; 91. Clip. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-2 A flame-retardant wood-plastic co-extruded profile includes a profile body 1, connecting grooves 2 are provided on both sides of the profile body 1, a plurality of anti-slip grooves 3 are provided on the profile body 1, the outer wall of the profile body 1 is wrapped with a first flame-retardant layer 11, a load-reducing groove 4 is provided on the profile body 1, a plurality of support columns 5 are arranged at intervals in the load-reducing groove 4 to form a plurality of partition openings 51, and the inner walls of the partition openings 51 are provided with a second flame-retardant layer 7.

[0022] In the utility model, the weight of the profile is reduced by opening a load-reducing groove 4 on the profile body 1, and a second flame-retardant layer 7 is provided in the partition opening 51 to prevent the wood-plastic in the partition opening 51 from being ignited and the flame from spreading, thereby increasing safety and reducing property losses.

[0023] Furthermore, in the present embodiment, reinforcing columns 52 are fixedly provided at the upper and lower ends of the partition opening 51 , and the reinforcing columns 52 are integrally formed with the profile body 1 , so as to further increase the strength of the profile body 1 .

[0024] Furthermore, in the present embodiment, reinforcement parts 6 are provided on both sides of the support column 5 , and the reinforcement parts 6 and the support column 5 are formed as one piece, so as to increase the strength of the support column 5 and prevent the profile body 1 from being crushed or broken.

[0025] It should be noted that, in the present embodiment, anti-slip grooves 8 are provided at the upper and lower ends of the connection groove 2 to facilitate the connection of multiple profile bodies 1, thereby facilitating the laying of profiles.

[0026] In addition, in the present embodiment, a connecting member 9 is movably plugged into the connecting groove 2 , and both ends of the connecting member 9 are fixedly provided with clamping members 91 that match the anti-slip groove 8 .

[0027] In detail, in some embodiments, a plurality of weight-reducing holes 12 are opened on the profile body 1 , and a second flame-retardant layer 7 is also provided in the weight-reducing holes 12 , so as to further reduce the weight of the profile body 1 .

[0028] In more detail, in some embodiments, the first flame retardant layer 11 is a modified high-chlorine polyethylene fire retardant paint, or other fire retardant paint coatings, and the second flame retardant layer 7 is a polytetrafluoroethylene propylene layer, or other flame retardant material layer.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flame retardant wood-plastic co-extruded profile, comprising a profile body (1), characterized in that: Both sides of the profile body (1) are provided with connection grooves (2), the profile body (1) is provided with a plurality of anti-slip grooves (3), the outer wall of the profile body (1) is wrapped with a first flame retardant layer (11), the profile body (1) is provided with a load-reducing groove (4), a plurality of support columns (5) are arranged at intervals in the load-reducing groove (4) to form a plurality of partition openings (51), and the inner walls of the partition openings (51) are provided with a second flame retardant layer (7).

2. The flame retardant wood-plastic co-extruded profile according to claim 1, characterized in that: Reinforcement columns (52) are fixedly arranged at the upper and lower ends of the partition opening (51).

3. The flame retardant wood-plastic co-extruded profile according to claim 1, characterized in that: Reinforcement parts (6) are provided on both sides of the support column (5), and the reinforcement parts (6) and the support column (5) are integrally formed.

4. The flame retardant wood-plastic co-extruded profile according to claim 1, characterized in that: Anti-slip grooves (8) are provided at the upper and lower ends of the connection groove (2).

5. The flame retardant wood-plastic co-extruded profile according to claim 4, characterized in that: A connecting piece (9) is movably plugged into the connecting groove (2), and both ends of the connecting piece (9) are fixedly provided with clamping pieces (91) that match the anti-slip groove (8).

6. The flame retardant wood-plastic co-extruded profile according to claim 1, characterized in that: A plurality of load-reducing holes (12) are provided on the profile body (1), and a second flame-retardant layer (7) is also provided in the load-reducing holes (12).

7. The flame retardant wood-plastic co-extruded profile according to claim 1, characterized in that: The first flame retardant layer (11) is a modified high-chlorine polyethylene fire retardant paint, and the second flame retardant layer (7) is a polyperfluoroethylene propylene layer.

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