Double-sided co-extrusion plastic-wood fence plate

Abstract

The utility model discloses a double-sided co-extrusion plastic-wood fence plate, relates to a plate, and belongs to the technical field of composite materials and new materials. The double-face co-extrusion plastic-wood fence plate is of an integral structure formed by an anti-aging outer structure layer and a plastic-wood inner structure layer through double-face co-extrusion, and the periphery of the plastic-wood inner structure layer is evenly coated with the anti-aging outer structure layer. The plastic-wood inner structure layer is specifically composed of a plastic-wood left inserting plate, a plastic-wood left plate, a plastic-wood middle plate, a plastic-wood right plate, a plastic-wood left connecting plate, a plastic-wood right connecting plate and a plastic-wood right side plate. According to the utility model, rapid and continuous production can be realized, and the production efficiency is high; the anti-aging fence plate is composed of the inner structural layer and the outer structural layer, the outer structural layer mainly adopts an anti-aging design to ensure that the fence plate has good anti-aging performance, and the inner structural layer mainly adopts a plastic-wood body structural design to meet the requirements for rigidity and strength of the fence plate; and the hollow cavity design is adopted, so that the obtained double-sided co-extrusion plastic-wood fence plate is light in weight, low in cost and convenient to transport and mount.

Description

Technical Field

[0001] The utility model discloses a double-sided co-extruded plastic wood fence board, which relates to a board and belongs to the technical field of composite materials and new materials. Background Art

[0002] Fence panels are widely used, and the most common fence panels on the market are wooden or metal. However, both wooden and metal fence panels have certain shortcomings during production and use. For example, wooden fence panels are mostly solid boards, which are heavy, costly, and complex to process. They are prone to aging, cracking, discoloration, and insect damage, and waste wood resources during production. Metal fence panels have relatively simple appearance and color, poor designability, high cost, heavy weight, inconvenient installation, and require anti-corrosion and rust prevention treatment.

[0003] Wood-plastic composite materials, made from low-value biomass fibers such as wood flour, crop straw powder, and rice bran powder, mixed with plastics and manufactured through processes such as extrusion and molding, offer numerous advantages, including resource utilization, plasticized products, environmentally friendly use, cost-effectiveness, and recyclability. As the advantages of wood-plastic products gain increasing recognition, their application range is rapidly expanding, encompassing municipal administration, landscaping, transportation, packaging, entertainment, sports, and interior design, among other areas. Product categories are also expanding, including flooring, wall panels, columns, chairs, dining tables, pallets, and more. In recent years, more fence panels have also been made of wood-plastic materials. However, since fence panels are mostly used outdoors, traditional wood-plastic fence panels can age during use, affecting their quality and even their lifespan.

[0004] Double-sided co-extruded plastic wood fence panels are made using two extrusion machines. Raw materials with different formulas are extruded separately through different extruder heads. The raw materials are then combined in a mold and co-extruded. The resulting fence panels have a two-layer structure, namely, an outer surface layer and an inner structural layer. Each layer exhibits different properties due to the different raw materials used, making the co-extruded fence panels have better overall performance than plastic wood fence panels extruded from a single formula. The co-extruded fence panels obtained in this way have an aging-resistant surface and a wide range of pattern options. The structural layer has the characteristics of high strength and high hardness. At the same time, it is made of cheap raw materials and has a low cost. Therefore, it is very necessary to overcome the shortcomings of fence panels made of other materials, give full play to the advantages of plastic wood products, and invent a double-sided co-extruded plastic wood fence panel. Summary of the Invention

[0005] The purpose of the utility model is to provide a double-sided co-extruded plastic wood fence board to solve the problems of heavy fence boards, high costs, inconvenient installation, and easy aging proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-sided co-extruded plastic wood fence board is formed by double-sided co-extrusion of an anti-aging outer structural layer and a plastic wood inner structural layer to form an integral structure, the anti-aging outer structural layer is evenly coated on the outer periphery of the plastic wood inner structural layer, and the plastic wood inner structural layer is specifically composed of a plastic wood left insert board, a plastic wood left board, a plastic wood middle board, a plastic wood right board, a plastic wood left connecting board, a plastic wood right connecting board and a plastic wood right board;

[0007] The plastic wood left board is composed of a plastic wood upper left horizontal board, a plastic wood lower left horizontal board, a plastic wood left-left vertical board, plastic wood left and right vertical boards, a plastic wood left hollow cylindrical board, a plastic wood left-center left horizontal board, a plastic wood left-center right horizontal board, a plastic wood left-center upper vertical board and a plastic wood left-center lower vertical board; the plastic wood middle board is composed of a plastic wood middle upper horizontal board, a plastic wood middle lower horizontal board, a plastic wood middle left vertical board, a plastic wood middle right vertical board, a plastic wood middle hollow cylindrical board, a plastic wood middle-center left horizontal board, a plastic wood middle-center right horizontal board, a plastic wood middle-center upper vertical board and a plastic wood middle-center lower vertical board; the plastic wood right board is composed of a plastic wood upper right horizontal board, a plastic wood lower right horizontal board, a plastic wood right-left vertical board, a plastic wood right-center upper vertical board, a plastic wood right-center lower vertical board, a plastic wood right-center horizontal board and a plastic wood right-center vertical board; the plastic wood right side board is provided with a rectangular groove;

[0008] The upper side of the plastic wood left insert is a first upper side, the lower side is a first lower side, and the left side is a first left side;

[0009] The upper side of the plastic wood upper left horizontal board is the second upper side, and the lower side is the second lower side; the upper side of the plastic wood lower left horizontal board is the third upper side, and the lower side is the third lower side; the left side of the plastic wood left vertical board is the second left side, the right side is the first right side, and the lower side is the fourth lower side; the left side of the plastic wood left and right vertical boards is the third left side, the right side is the second right side, and the lower side is the fifth lower side; the plastic wood left hollow round board The column plate, its outer arc edge is the first outer arc edge, and the inner arc edge is the first inner arc edge; the upper side edge of the plastic wood left center left horizontal plate is the fourth upper side edge, and the lower side edge is the sixth lower side edge; the upper side edge of the plastic wood left center right horizontal plate is the fifth upper side edge, and the lower side edge is the seventh lower side edge; the left side edge of the plastic wood left center upper vertical plate is the fourth left side edge, and the right side edge is the third right side edge; the left side edge of the plastic wood left center lower vertical plate is the fifth left side edge, and the right side edge is the fourth right side edge;

[0010] The upper side of the plastic wood middle horizontal board is the sixth upper side, and the lower side is the eighth lower side; the upper side of the plastic wood middle lower horizontal board is the seventh upper side, and the lower side is the ninth lower side; the left side of the plastic wood middle left vertical board is the sixth left side, the right side is the fifth right side, and the lower side is the tenth lower side; the left side of the plastic wood middle right vertical board is the seventh left side, the right side is the sixth right side, and the lower side is the eleventh lower side; the plastic wood middle hollow round board The column plate, its outer arc edge is the second outer arc edge, and the inner arc edge is the second inner arc edge; the upper side edge of the left horizontal plate in the middle of the plastic wood is the eighth upper side edge, and the lower side edge is the twelfth lower side edge; the upper side edge of the right horizontal plate in the middle of the plastic wood is the ninth upper side edge, and the lower side edge is the thirteenth lower side edge; the left side edge of the upper vertical plate in the middle of the plastic wood is the eighth left side edge, and the right side edge is the seventh right side edge; the left side edge of the lower vertical plate in the middle of the plastic wood is the ninth left side edge, and the right side edge is the eighth right side edge;

[0011] The upper right horizontal plate of the plastic wood has an upper side that is the tenth upper side, and a lower side that is the fourteenth lower side; the upper right horizontal plate of the plastic wood has an upper side that is the eleventh upper side, and a lower side that is the fifteenth lower side; the left side of the right left vertical plate of the plastic wood is the tenth left side, the right side is the ninth right side, and the lower side is the sixteenth lower side; the left side of the right upper vertical plate of the plastic wood is the eleventh left side, the right side is the tenth right side, and the lower side is the seventeenth lower side; the left side of the right lower vertical plate of the plastic wood is the twelfth left side, the right side is the eleventh right side, the upper side is the twelfth upper side, and the lower side is the twenty-second lower side; the upper side of the right middle horizontal plate of the plastic wood is the thirteenth upper side, and the lower side is the eighteenth lower side; the left side of the right middle vertical plate of the plastic wood is the thirteenth left side, and the right side is the twelfth right side;

[0012] The upper side of the plastic wood left connecting plate is the fourteenth upper side, and the lower side is the nineteenth lower side; the upper side of the plastic wood right connecting plate is the fifteenth upper side, and the lower side is the twentieth lower side; the upper side of the plastic wood right plate is the sixteenth upper side, the lower side is the twenty-first lower side, and the right side is the thirteenth right side; the left side of the rectangular groove is the fourteenth left side, the right side is the fourteenth right side, and the upper side of the bottom is the seventeenth upper side;

[0013] The right end of the left plastic wood insert is vertically connected to the second left side to form an integral structure;

[0014] The left end of the upper left horizontal board of the plastic wood is vertically connected to the upper end of the left vertical board of the plastic wood to form an integral structure, and the right end is vertically connected to the upper end of the left and right vertical boards of the plastic wood to form an integral structure; the left end of the lower left horizontal board of the plastic wood is vertically connected to the first right side to form an integral structure, and the right end is vertically connected to the third left side to form an integral structure; the left hollow cylindrical board of the plastic wood is located between the upper left horizontal board of the plastic wood, the lower left horizontal board of the plastic wood, the left vertical board of the plastic wood and the left and right vertical boards of the plastic wood, and the left end of the left middle horizontal board of the plastic wood is vertically connected to the first right side to form an integral structure The right end of the plastic wood left middle right horizontal board is connected to the third left side vertically to form an integral structure, and the left end is connected to the right outer arc edge of the first outer arc edge to form an integral structure. The upper end of the plastic wood left middle upper vertical board is vertically connected to the second lower side to form an integral structure, and the lower end is connected to the upper outer arc edge of the first outer arc edge to form an integral structure. The lower end of the plastic wood left middle lower vertical board is vertically connected to the third upper side to form an integral structure, and the upper end is connected to the lower outer arc edge of the first outer arc edge to form an integral structure.

[0015] The left end of the upper horizontal plate in the plastic wood is vertically connected to the upper end of the left vertical plate in the plastic wood to form an integral structure, and the right end is vertically connected to the upper end of the right vertical plate in the plastic wood to form an integral structure; the left end of the lower horizontal plate in the plastic wood is vertically connected to the fifth right side to form an integral structure, and the right end is vertically connected to the seventh left side to form an integral structure; the hollow cylindrical plate in the plastic wood is located between the upper horizontal plate in the plastic wood, the lower horizontal plate in the plastic wood, the left vertical plate in the plastic wood and the right vertical plate in the plastic wood, and the left end of the left horizontal plate in the plastic wood is vertically connected to the fifth right side to form an integral structure The right end of the right horizontal board in the plastic wood is vertically connected to the left outer arc edge of the second outer arc edge to form an integral structure, the right end of the right horizontal board in the plastic wood is vertically connected to the seventh left side to form an integral structure, and the left end is connected to the right outer arc edge of the second outer arc edge to form an integral structure. The upper end of the upper vertical board in the plastic wood is vertically connected to the eighth lower side to form an integral structure, and the lower end is connected to the upper outer arc edge of the second outer arc edge to form an integral structure. The lower end of the lower vertical board in the plastic wood is vertically connected to the seventh upper side to form an integral structure, and the upper end is connected to the lower outer arc edge of the second outer arc edge to form an integral structure.

[0016] The left end of the plastic wood upper right horizontal board is vertically connected to the upper end of the plastic wood right left vertical board to form an integral structure, and the right end is vertically connected to the upper end of the plastic wood right upper right vertical board to form an integral structure; the eleventh left side partially overlaps with the eleventh right side; the left end of the plastic wood lower right horizontal board is vertically connected to the ninth right side to form an integral structure, and the right end is vertically connected to the twelfth left side to form an integral structure; the left end of the plastic wood right middle horizontal board is vertically connected to the ninth right side to form an integral structure, and the right end is vertically connected to the eleventh left side to form an integral structure; the upper end of the plastic wood right middle vertical board is vertically connected to the eighteenth lower side to form an integral structure, and the lower end is vertically connected to the eleventh upper side to form an integral structure;

[0017] The left end of the plastic wood left connecting plate is vertically connected to the second right side to form an integral structure, and the right end is vertically connected to the sixth left side to form an integral structure; the left end of the plastic wood right connecting plate is vertically connected to the sixth right side to form an integral structure, and the right end is vertically connected to the tenth left side to form an integral structure;

[0018] The left end of the plastic wood right side panel is vertically connected to the eleventh right side to form an integral structure;

[0019] The thickness of the plastic wood upper left horizontal board, plastic wood lower left horizontal board, plastic wood left vertical board, plastic wood left and right vertical board, plastic wood middle upper horizontal board, plastic wood middle lower horizontal board, plastic wood middle left vertical board, plastic wood middle right vertical board, plastic wood upper right horizontal board, plastic wood lower right horizontal board, plastic wood right left vertical board, plastic wood right upper right vertical board and plastic wood right lower right vertical board are uniform and equal to each other; the width of the plastic wood upper left horizontal board, plastic wood lower left horizontal board, plastic wood middle upper horizontal board, plastic wood middle lower horizontal board and plastic wood right upper horizontal board are equal; the height of the plastic wood left and left vertical board, plastic wood left and right vertical board, plastic wood middle left vertical board, plastic wood middle right vertical board and plastic wood right left vertical board are equal; the height of the plastic wood right upper right vertical board and plastic wood right lower right vertical board are equal;

[0020] Specifically, the thickness of the upper left plastic wood horizontal board refers to the distance from the second upper side to the second lower side, and the width refers to the distance from the first right side to the third left side; the thickness of the lower left plastic wood horizontal board refers to the distance from the third upper side to the third lower side, and the width refers to the distance from the first right side to the third left side; the thickness of the left plastic wood vertical board refers to the distance from the second left side to the first right side, and the height refers to the distance from the second upper side to the fourth lower side; the thickness of the left and right plastic wood vertical boards refers to the distance from the third left side to the second right side, and the height refers to the distance from the second upper side to the fifth lower side;

[0021] Specifically, the thickness of the upper horizontal board in the plastic wood refers to the distance from the sixth upper side to the eighth lower side, and the width refers to the distance from the fifth right side to the seventh left side; the thickness of the lower horizontal board in the plastic wood refers to the distance from the seventh upper side to the ninth lower side, and the width refers to the distance from the fifth right side to the seventh left side; the thickness of the left vertical board in the plastic wood refers to the distance from the sixth left side to the fifth right side, and the height refers to the distance from the sixth upper side to the tenth lower side; the thickness of the right vertical board in the plastic wood refers to the distance from the seventh left side to the sixth right side, and the height refers to the distance from the sixth upper side to the eleventh lower side;

[0022] Specifically, the thickness of the plastic wood upper right horizontal board refers to the distance from the tenth upper side to the fourteenth lower side, and the width refers to the distance from the ninth right side to the eleventh left side; the thickness of the plastic wood lower right horizontal board refers to the distance from the eleventh upper side to the fifteenth lower side, and the width refers to the distance from the ninth right side to the twelfth left side; the thickness of the plastic wood right-left vertical board refers to the distance from the tenth left side to the ninth right side, and the height refers to the distance from the tenth upper side to the sixteenth lower side; the thickness of the plastic wood right upper vertical board refers to the distance from the eleventh left side to the tenth right side, and the height refers to the distance from the tenth upper side to the seventeenth lower side; the thickness of the plastic wood right lower right vertical board refers to the distance from the twelfth left side to the eleventh right side, and the height refers to the distance from the twelfth upper side to the twenty-second lower side;

[0023] The thickness of the plastic wood left hollow cylindrical board, plastic wood left middle left horizontal board, plastic wood left middle right horizontal board, plastic wood left middle upper vertical board, plastic wood left middle lower vertical board, plastic wood middle hollow cylindrical board, plastic wood middle left horizontal board, plastic wood middle middle right horizontal board, plastic wood middle middle upper vertical board, plastic wood middle middle lower vertical board, plastic wood right middle horizontal board and plastic wood right middle vertical board are uniform and equal to each other; the width of the plastic wood left middle left horizontal board, plastic wood left middle right horizontal board, plastic wood middle middle left horizontal board and plastic wood middle middle right horizontal board are the same; the height of the plastic wood left middle upper vertical board, plastic wood left middle lower vertical board, plastic wood middle middle upper vertical board and plastic wood middle middle lower vertical board are the same;

[0024] Specifically, the thickness of the plastic wood left hollow cylindrical plate refers to the distance from the first outer arc edge to the first inner arc edge; the thickness of the plastic wood left middle left horizontal plate refers to the distance from the fourth upper side edge to the sixth lower side edge, and the width refers to the distance from the first right side edge to the left outer arc edge of the first outer arc edge at the middle thickness; the thickness of the plastic wood left middle right horizontal plate refers to the distance from the fifth upper side edge to the seventh lower side edge, and the width refers to the distance from the third left side edge to the right outer arc edge of the first outer arc edge at the middle thickness; the thickness of the plastic wood left middle upper vertical plate refers to the distance from the fourth left side edge to the third right side edge, and the height refers to the distance from the second lower side edge to the upper outer arc edge of the first outer arc edge at the middle thickness; the thickness of the plastic wood left middle lower vertical plate refers to the distance from the fifth left side edge to the fourth right side edge, and the height refers to the distance from the third upper side edge to the lower outer arc edge of the first outer arc edge at the middle thickness;

[0025] Specifically, the thickness of the hollow cylindrical plate in the plastic wood refers to the distance from the second outer arc edge to the second inner arc edge; the thickness of the left horizontal plate in the plastic wood refers to the distance from the eighth upper side to the twelfth lower side, and the width refers to the distance from the fifth right side to the left outer arc edge of the second outer arc edge at the middle thickness; the thickness of the right horizontal plate in the plastic wood refers to the distance from the ninth upper side to the thirteenth lower side, and the width refers to the distance from the seventh left side to the right outer arc edge of the second outer arc edge at the middle thickness; the thickness of the upper vertical plate in the plastic wood refers to the distance from the eighth left side to the seventh right side, and the height refers to the distance from the eighth lower side to the upper outer arc edge of the second outer arc edge at the middle thickness; the thickness of the lower vertical plate in the plastic wood refers to the distance from the ninth left side to the eighth right side, and the height refers to the distance from the seventh upper side to the lower outer arc edge of the second outer arc edge at the middle thickness;

[0026] Specifically, the thickness of the right middle plastic wood board refers to the distance from the thirteenth upper side to the eighteenth lower side, and the width refers to the distance from the ninth right side to the eleventh left side; the thickness of the right middle plastic wood board refers to the distance from the thirteenth left side to the twelfth right side, and the height refers to the distance from the eleventh upper side to the eighteenth lower side;

[0027] The left plastic wood connecting plate and the right plastic wood connecting plate have the same thickness and width;

[0028] Specifically, the thickness of the plastic wood left connecting plate refers to the distance from the fourteenth upper side to the nineteenth lower side, and the width refers to the distance from the second right side to the sixth left side; the thickness of the plastic wood right connecting plate refers to the distance from the fifteenth upper side to the twentieth lower side, and the width refers to the distance from the sixth right side to the tenth left side;

[0029] The fourth lower side, the fifth lower side, the tenth lower side, the eleventh lower side, the sixteenth lower side, the twenty-first lower side and the twenty-second lower side are in the same horizontal plane, and the twenty-first lower side and the twenty-second lower side are connected to form an integral structure;

[0030] The third upper side, the seventh upper side, the fourteenth upper side, the eleventh upper side, the seventeenth lower side and the fifteenth upper side are in the same horizontal plane;

[0031] The anti-aging outer structural layer is formed by melt-blending polyethylene, ultraviolet absorber, and titanium dioxide and then extruding it into an outer structural layer material flow. The plastic wood inner structural layer is formed by melt-blending wood powder, polyethylene, calcium carbonate powder, and calcium stearate and then extruding it into an inner structural layer material flow. The outer structural layer material flow and the inner structural layer material flow are merged in a die and then co-extruded to obtain a double-sided co-extruded plastic wood fence board with an anti-aging outer structural layer covering a plastic wood inner structural layer.

[0032] Preferably, the thickness of the anti-aging outer structural layer is 0.5 mm.

[0033] Preferably, the thickness of the plastic wood left insert, that is, the distance from the first upper side to the first lower side is 6 mm, the width, that is, the distance from the first left side to the second left side is 18 mm, and the distance from the first lower side to the fourth lower side is 3 mm.

[0034] Preferably, the thickness of the plastic wood upper left horizontal board, plastic wood lower left horizontal board, plastic wood left vertical board, plastic wood left and right vertical board, plastic wood middle upper horizontal board, plastic wood middle lower horizontal board, plastic wood middle left vertical board, plastic wood middle right vertical board, plastic wood upper right horizontal board, plastic wood lower right horizontal board, plastic wood right left vertical board, plastic wood right upper right vertical board and plastic wood right lower right vertical board are all 6 mm; the width of the plastic wood upper left horizontal board, plastic wood lower left horizontal board, plastic wood middle upper horizontal board, plastic wood middle lower horizontal board and plastic wood right upper horizontal board are all 22 mm; the height of the plastic wood left and right vertical board, plastic wood left and right vertical board, plastic wood middle left vertical board, plastic wood middle right vertical board and plastic wood right left vertical board are all 25 mm; the height of the plastic wood right upper right vertical board and plastic wood right lower right vertical board are both 14.5 mm;

[0035] Preferably, the thickness of the plastic wood left hollow cylindrical plate, the plastic wood left-center-left horizontal plate, the plastic wood left-center-right horizontal plate, the plastic wood left-center-upper vertical plate, the plastic wood left-center-lower vertical plate, the plastic wood middle hollow cylindrical plate, the plastic wood middle-center left horizontal plate, the plastic wood middle-center right horizontal plate, the plastic wood middle-center upper vertical plate, the plastic wood middle-center lower vertical plate, the plastic wood right-center horizontal plate and the plastic wood right-center vertical plate are all 2.5 mm; the outer diameters of the plastic wood left hollow cylindrical plate and the plastic wood middle hollow cylindrical plate are both 6.5 mm;

[0036] Preferably, the thickness of the left plastic wood connecting plate and the right plastic wood connecting plate are both 7 mm and the width are both 20 mm;

[0037] Preferably, the height of the right middle vertical board of the plastic wood is 4 mm;

[0038] Preferably, the thickness of the plastic wood right side panel, that is, the distance from the sixteenth upper side to the twenty-first lower side, is 1.8 mm; the width, that is, the distance from the eleventh right side to the thirteenth right side, is 22 mm;

[0039] Preferably, the width of the rectangular groove, that is, the distance from the fourteenth left side to the fourteenth right side is 8 mm, and the depth, that is, the distance from the sixteenth upper side to the seventeenth upper side is 0.3 mm; the distance from the eleventh right side to the fourteenth left side is 7 mm.

[0040] Compared with the prior art, the beneficial effects of the present invention are:

[0041] 1. The double-sided co-extruded plastic wood fence board with a fixed cross-sectional shape is designed. During production, only a mold with a cross-section consistent with the utility model is needed to achieve rapid and continuous production of the double-sided co-extruded plastic wood fence board with high production efficiency.

[0042] 2. The double-sided co-extrusion design is adopted, and the fence board is composed of inner and outer structural layers. The outer structural layer mainly adopts aging-resistant design to ensure that the fence board has good aging resistance; the inner structural layer mainly adopts plastic wood body structure design to meet the rigidity and strength requirements of the fence board.

[0043] 3. The hollow cavity design is adopted, and the double-sided co-extruded plastic wood fence board is light in weight, low in cost, and easy to transport and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The present invention will be further described below with reference to the accompanying drawings:

[0045] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0046] Figure 2 for Figure 1 Schematic diagram of the AA cross-section structure.

[0047] Figure 3 for Figure 1 Front view of .

[0048] 001-anti-aging outer structural layer, 002-plastic wood inner structural layer, 1-plastic wood left plug board, 2-plastic wood left board, 3-plastic wood middle board, 4-plastic wood right board, 5-plastic wood left connecting board, 6-plastic wood right connecting board, 7-plastic wood right board, 8-plastic wood upper left horizontal board, 9-plastic wood lower left horizontal board, 10-plastic wood left vertical board, 11-plastic wood left and right vertical boards, 12-plastic wood left hollow cylindrical board, 13-plastic wood left middle left horizontal board, 14-plastic wood left middle right horizontal board, 15-plastic wood left middle upper vertical board, 16-plastic wood left middle lower vertical board, 17-plastic wood middle upper horizontal board, 18-plastic wood middle lower horizontal board, 19-plastic wood middle left vertical board, 20-plastic wood middle right vertical board, 21-plastic wood middle hollow cylindrical board, 22-plastic wood middle left horizontal board, 23-plastic wood middle right horizontal board, 24- Plastic wood middle upper vertical board, 25-plastic wood middle lower vertical board, 26-plastic wood right upper horizontal board, 27-plastic wood right lower horizontal board, 28-plastic wood right left vertical board, 29-plastic wood right upper vertical board, 30-plastic wood right lower vertical board, 31-plastic wood right middle horizontal board, 32-plastic wood right middle vertical board, 33-rectangular groove, 34-first upper side, 35-first lower side, 36-first left side, 37-second upper side, 38-second lower side, 39-third upper side, 40-third lower side, 41-second left side, 42-first right side, 43-fourth lower side, 44-third left side, 45-second right side, 46-fifth lower side, 47-first outer arc edge, 48-first inner arc edge, 49-fourth upper side, 50-sixth lower side Side, 51-fifth upper side, 52-seventh lower side, 53-fourth left side, 54-third right side, 55-fifth left side, 56-fourth right side, 57-sixth upper side, 58-eighth lower side, 59-seventh upper side, 60-nineth lower side, 61-sixth left side, 62-fifth right side, 63-tenth lower side, 64-seventh left side, 65-sixth right side, 66-eleventh lower side, 67-second outer arc side, 68-second inner arc side, 69-eighth upper side, 70-twelfth lower side, 71-ninth upper side, 72-thirteenth lower side, 73-eighth left side, 74-seventh right side, 75-ninth left side, 76-eighth right side, 77-fourteenth upper side, 78- the nineteenth lower side, 79- the tenth upper side, 80- the fourteenth lower side, 81- the eleventh upper side, 82- the fifteenth lower side, 83- the tenth left side, 84- the ninth right side, 85- the sixteenth lower side, 86- the eleventh left side, 87- the tenth right side, 88- the seventeenth lower side, 89- the twelfth left side, 90- the eleventh right side, 91- the twelfth upper side, 92- the thirteenth upper side, 93- the eighteenth lower side, 94- the thirteenth left side, 95- the twelfth right side, 96- the fifteenth upper side, 97- the twentieth lower side, 98- the sixteenth upper side, 99- the twenty-first lower side, 100- the thirteenth right side, 101- the fourteenth left side, 102- the fourteenth right side,103-17th upper side, 104-22nd lower side. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0050] The utility model provides a double-sided co-extruded plastic wood fence board, which can be quickly produced and installed, has a unique shape, is light in weight, and has an outer structural layer and an inner structural layer with different functions, thereby ensuring the safe use of the fence board.

[0051] See also Figure 1-3 The double-sided co-extruded plastic wood fence board is made of polyethylene, ultraviolet absorber and titanium dioxide after melt blending and extruded into the outer structural layer material flow, and the wood powder, polyethylene, calcium carbonate powder and calcium stearate are melt blended and extruded into the inner structural layer material flow. The outer structural layer material flow and the inner structural layer material flow are merged in the die and then co-extruded to obtain a double-sided co-extruded plastic wood fence board with an anti-aging outer structural layer 001 with a thickness of 0.5 mm uniformly coated on the outer periphery of the plastic wood inner structural layer 002. The plastic wood inner structure layer 002 is specifically composed of a plastic wood left insert board 1 with a thickness of 6 mm and a width of 18 mm, a plastic wood left board 2, a plastic wood middle board 3, a plastic wood right board 4, a plastic wood left connecting board 5 with a thickness of 7 mm and a width of 20 mm, a plastic wood right connecting board 6 with a thickness of 7 mm and a width of 20 mm, and a plastic wood right side board 7 with a thickness of 1.8 mm and a width of 22 mm; the plastic wood right side board 7 has a rectangular groove 33 with a width of 8 mm and a depth of 0.3 mm;

[0052] The plastic wood left board 2 is composed of a plastic wood upper left horizontal board 8 and a plastic wood lower left horizontal board 9, both of which are 6 mm thick and 22 mm wide, a plastic wood left vertical board 10, a plastic wood left and right vertical board 11, both of which are 6 mm thick and 25 mm high, a plastic wood left hollow cylindrical board 12, a plastic wood left middle horizontal board 13, a plastic wood left middle right horizontal board 14, a plastic wood left middle upper vertical board 15, and a plastic wood left middle lower vertical board 16, both of which are 2.5 mm thick.

[0053] The plastic wood middle board 3 is composed of a plastic wood middle upper horizontal board 17 and a plastic wood middle lower horizontal board 18, both of which are 6 mm thick and 22 mm wide, a plastic wood middle left vertical board 19 and a plastic wood middle right vertical board 20, both of which are 6 mm thick and 25 mm high, a plastic wood middle hollow cylindrical board 21 with a thickness of 2.5 mm and an outer diameter of 6.5 mm, and a plastic wood middle left horizontal board 22, a plastic wood middle right horizontal board 23, a plastic wood middle upper vertical board 24, and a plastic wood middle lower vertical board 25, both of which are 2.5 mm thick.

[0054] The plastic wood right board 4 is composed of a plastic wood upper right horizontal board 26 with a thickness of 6 mm and a width of 22 mm, a plastic wood lower right horizontal board 27 with a thickness of 6 mm, a plastic wood right and left vertical board 28 with a thickness of 6 mm and a height of 25 mm, a plastic wood upper right vertical board 29 with a thickness of 6 mm and a height of 14.5 mm, a plastic wood right lower right vertical board 30, a plastic wood right middle horizontal board 31 with a thickness of 2.5 mm and a plastic wood right middle vertical board 32 with a thickness of 2.5 mm and a height of 4 mm;

[0055] The widths of the plastic wood left-center-left horizontal board 13, the plastic wood left-center-right horizontal board 14, the plastic wood center-left horizontal board 22 and the plastic wood center-center-right horizontal board 23 are the same; the heights of the plastic wood left-center-upper vertical board 15, the plastic wood left-center-lower vertical board 16, the plastic wood center-center-upper vertical board 24 and the plastic wood center-center-lower vertical board 25 are the same;

[0056] The upper side of the plastic wood left insert 1 is a first upper side 34, the lower side is a first lower side 35, and the left side is a first left side 36; the thickness of the plastic wood left insert 1 refers to the distance from the first upper side 34 to the first lower side 35;

[0057] The upper left horizontal plate 8 of the plastic wood has an upper side that is the second upper side 37 and a lower side that is the second lower side 38; the upper left horizontal plate 9 of the plastic wood has an upper side that is the third upper side 39 and a lower side that is the third lower side 40; the left vertical plate 10 of the plastic wood has a left side that is the second left side 41, a right side that is the first right side 42, and a lower side that is the fourth lower side 43; the left vertical plates 11 of the plastic wood have a left side that is the third left side 44, a right side that is the second right side 45, and a lower side that is the fifth lower side 46; the left hollow cylindrical plate of the plastic wood 12, its outer arc edge is the first outer arc edge 47, and its inner arc edge is the first inner arc edge 48; the upper side of the left-center-left horizontal board 13 is the fourth upper side edge 49, and the lower side is the sixth lower side edge 50; the upper side of the left-center-right horizontal board 14 is the fifth upper side edge 51, and the lower side is the seventh lower side edge 52; the left side of the left-center-upper vertical board 15 is the fourth left side edge 53, and the right side is the third right side edge 54; the left side of the left-center-lower vertical board 16 is the fifth left side edge 55, and the right side is the fourth right side edge 56;

[0058] The right end of the plastic wood left insert 1 is vertically connected to the second left side 41 to form an integral structure; the width of the plastic wood left insert 1 refers to the distance from the first left side 36 to the second left side 41;

[0059] The left end of the plastic wood upper left horizontal plate 8 is vertically connected to the upper end of the plastic wood left vertical plate 10 to form an integral structure, and the right end is vertically connected to the upper end of the plastic wood left and right vertical plates 11 to form an integral structure; the left end of the plastic wood lower left horizontal plate 9 is vertically connected to the first right side 42 to form an integral structure, and the right end is vertically connected to the third left side 44 to form an integral structure; the plastic wood left hollow cylindrical plate 12 is located between the plastic wood upper left horizontal plate 8, the plastic wood lower left horizontal plate 9, the plastic wood left and left vertical plate 10 and the plastic wood left and right vertical plates 11, and the left end of the plastic wood left middle left horizontal plate 13 is vertically connected to the first right side 42 to form an integral structure. The right end of the plastic wood left middle right horizontal board 14 is connected to the left outer arc edge of the first outer arc edge 47 to form an integral structure, the right end is vertically connected to the third left side 44 to form an integral structure, and the left end is connected to the right outer arc edge of the first outer arc edge 47 to form an integral structure. The upper end of the plastic wood left middle upper vertical board 15 is vertically connected to the second lower side 38 to form an integral structure, and the lower end is connected to the upper outer arc edge of the first outer arc edge 47 to form an integral structure. The lower end of the plastic wood left middle lower vertical board 16 is vertically connected to the third upper side 39 to form an integral structure, and the upper end is connected to the lower outer arc edge of the first outer arc edge 47 to form an integral structure.

[0060] The thickness of the plastic wood upper left horizontal board 8 refers to the distance from the second upper side 37 to the second lower side 38, and the width refers to the distance from the first right side 42 to the third left side 44; the thickness of the plastic wood lower left horizontal board 9 refers to the distance from the third upper side 39 to the third lower side 40, and the width refers to the distance from the first right side 42 to the third left side 44; the thickness of the plastic wood left vertical board 10 refers to the distance from the second left side 41 to the first right side 42, and the height refers to the distance from the second upper side 37 to the fourth lower side 43; the thickness of the plastic wood left and right vertical boards 11 refers to the distance from the third left side 44 to the second right side 45, and the height refers to the distance from the second upper side 37 to the fifth lower side 46;

[0061] The thickness of the plastic wood left hollow cylindrical plate 12 refers to the distance from the first outer arc edge 47 to the first inner arc edge 48; the thickness of the plastic wood left middle left horizontal plate 13 refers to the distance from the fourth upper side 49 to the sixth lower side 50, and the width refers to the distance from the first right side 42 to the left outer arc edge of the first outer arc edge 47 at the middle thickness; the thickness of the plastic wood left middle right horizontal plate 14 refers to the distance from the fifth upper side 51 to the seventh lower side 52, and the width refers to the distance from the third left side 4 at the middle thickness. 4 to the right outer arc edge of the first outer arc edge 47; the thickness of the plastic wood left middle upper vertical board 15 refers to the distance from the fourth left side 53 to the third right side 54, and the height refers to the distance from the second lower side 38 to the upper outer arc edge of the first outer arc edge 47 at the middle thickness; the thickness of the plastic wood left middle lower vertical board 16 refers to the distance from the fifth left side 55 to the fourth right side 56, and the height refers to the distance from the third upper side 39 to the lower outer arc edge of the first outer arc edge 47 at the middle thickness;

[0062] The upper horizontal plate 17 of the plastic wood has an upper side that is the sixth upper side 57 and a lower side that is the eighth lower side 58; the upper side of the lower horizontal plate 18 of the plastic wood has an upper side that is the seventh upper side 59 and a lower side that is the ninth lower side 60; the left vertical plate 19 of the plastic wood has a left side that is the sixth left side 61, a right side that is the fifth right side 62, and a lower side that is the tenth lower side 63; the left vertical plate 20 of the plastic wood has a left side that is the seventh left side 64, a right side that is the sixth right side 65, and a lower side that is the eleventh lower side 66; the hollow cylinder of the plastic wood The outer arc edge of the board 21 is the second outer arc edge 67, and the inner arc edge is the second inner arc edge 68; the upper side of the left horizontal board 22 in the middle of the plastic wood is the eighth upper side edge 69, and the lower side is the twelfth lower side edge 70; the upper side of the right horizontal board 23 in the middle of the plastic wood is the ninth upper side edge 71, and the lower side is the thirteenth lower side edge 72; the left side of the upper vertical board 24 in the middle of the plastic wood is the eighth left side edge 73, and the right side is the seventh right side edge 74; the left side of the lower vertical board 25 in the middle of the plastic wood is the ninth left side edge 75, and the right side is the eighth right side edge 76;

[0063] The left end of the upper horizontal plate 17 of the plastic wood is vertically connected to the upper end of the left vertical plate 19 of the plastic wood to form an integral structure, and the right end is vertically connected to the upper end of the right vertical plate 20 of the plastic wood to form an integral structure; the left end of the lower horizontal plate 18 of the plastic wood is vertically connected to the fifth right side 62 to form an integral structure, and the right end is vertically connected to the seventh left side 64 to form an integral structure; the hollow cylindrical plate 21 of the plastic wood is located between the upper horizontal plate 17 of the plastic wood, the lower horizontal plate 18 of the plastic wood, the left vertical plate 19 of the plastic wood and the right vertical plate 20 of the plastic wood, and the left end of the left horizontal plate 22 of the plastic wood is vertical to the fifth right side 62 The right end of the right horizontal plate 23 in the plastic wood is vertically connected to the seventh left side 64 to form an integral structure, and the left end is connected to the right outer arc edge of the second outer arc edge 67 to form an integral structure. The upper end of the upper vertical plate 24 in the plastic wood is vertically connected to the eighth lower side 58 to form an integral structure, and the lower end is connected to the upper outer arc edge of the second outer arc edge 67 to form an integral structure. The lower end of the lower vertical plate 25 in the plastic wood is vertically connected to the seventh upper side 59 to form an integral structure, and the upper end is connected to the lower outer arc edge of the second outer arc edge 67 to form an integral structure.

[0064] The thickness of the plastic wood middle upper horizontal board 17 refers to the distance from the sixth upper side 57 to the eighth lower side 58, and the width refers to the distance from the fifth right side 62 to the seventh left side 64; the thickness of the plastic wood middle lower horizontal board 18 refers to the distance from the seventh upper side 59 to the ninth lower side 60, and the width refers to the distance from the fifth right side 62 to the seventh left side 64; the thickness of the plastic wood middle left vertical board 19 refers to the distance from the sixth left side 61 to the fifth right side 62, and the height refers to the distance from the sixth upper side 57 to the tenth lower side 63; the thickness of the plastic wood middle right vertical board 20 refers to the distance from the seventh left side 64 to the sixth right side 65, and the height refers to the distance from the sixth upper side 57 to the eleventh lower side 66;

[0065] The thickness of the hollow cylindrical plate 21 in the plastic wood refers to the distance from the second outer arc edge 67 to the second inner arc edge 68; the thickness of the left horizontal plate 22 in the plastic wood refers to the distance from the eighth upper side 69 to the twelfth lower side 70, and the width refers to the distance from the fifth right side 62 to the left outer arc edge of the second outer arc edge 67 at the middle thickness; the thickness of the right horizontal plate 23 in the plastic wood refers to the distance from the ninth upper side 71 to the thirteenth lower side 72, and the width refers to the distance from the seventh left side 6 at the middle thickness. 4 to the right outer arc edge of the second outer arc edge 67; the thickness of the plastic wood middle upper vertical board 24 refers to the distance from the eighth left side 73 to the seventh right side 74, and the height refers to the distance from the eighth lower side 58 to the upper outer arc edge of the second outer arc edge 67 at the middle thickness; the thickness of the plastic wood middle lower vertical board 25 refers to the distance from the ninth left side 75 to the eighth right side 76, and the height refers to the distance from the seventh upper side 59 to the lower outer arc edge of the second outer arc edge 67 at the middle thickness;

[0066] The upper right horizontal plate 26 of the plastic wood has an upper side of the tenth upper side 79 and a lower side of the fourteenth lower side 80; the upper right horizontal plate 27 of the plastic wood has an upper side of the eleventh upper side 81 and a lower side of the fifteenth lower side 82; the left side of the plastic wood right-left vertical plate 28 is the tenth left side 83, the right side is the ninth right side 84, and the lower side is the sixteenth lower side 85; the left side of the plastic wood right-upper vertical plate 29 is the eleventh left side 86 and the right side is the tenth right side 87, the lower side is the seventeenth lower side 88; the left side of the right lower plastic wood vertical plate 30 is the twelfth left side 89, the right side is the eleventh right side 90, the upper side is the twelfth upper side 91, and the lower side is the twenty-second lower side 104; the upper side of the right middle plastic wood horizontal plate 31 is the thirteenth upper side 92, and the lower side is the eighteenth lower side 93; the left side of the right middle plastic wood vertical plate 32 is the thirteenth left side 94, and the right side is the twelfth right side 95;

[0067] The left end of the plastic wood upper right horizontal plate 26 is vertically connected to the upper end of the plastic wood right left vertical plate 28 to form an integral structure, and the right end is vertically connected to the upper end of the plastic wood right upper right vertical plate 29 to form an integral structure; the eleventh left side 86 partially overlaps with the eleventh right side 90; the left end of the plastic wood lower right horizontal plate 27 is vertically connected to the ninth right side 84 to form an integral structure, and the right end is vertically connected to the twelfth left side 89 to form an integral structure; the left end of the plastic wood right middle horizontal plate 31 is vertically connected to the ninth right side 84 to form an integral structure, and the right end is vertically connected to the eleventh left side 86 to form an integral structure; the upper end of the plastic wood right middle vertical plate 32 is vertically connected to the eighteenth lower side 93 to form an integral structure, and the lower end is vertically connected to the eleventh upper side 81 to form an integral structure;

[0068] The thickness of the plastic wood upper right horizontal plate 26 refers to the distance from the tenth upper side 79 to the fourteenth lower side 80, and the width refers to the distance from the ninth right side 84 to the eleventh left side 86; the thickness of the plastic wood lower right horizontal plate 27 refers to the distance from the eleventh upper side 81 to the fifteenth lower side 82, and the width refers to the distance from the ninth right side 84 to the twelfth left side 89; the thickness of the plastic wood right left vertical plate 28 refers to the distance from the tenth left side 83 to the ninth right side 84, and the height refers to the distance from the tenth upper side 79 to the sixteenth lower side 85; the thickness of the plastic wood right upper vertical plate 29 refers to the distance from the eleventh left side 86 to the tenth right side 87, and the height refers to the distance from the tenth upper side 79 to the seventeenth lower side 88; the thickness of the plastic wood right lower right vertical plate 30 refers to the distance from the twelfth left side 89 to the eleventh right side 90, and the height refers to the distance from the twelfth upper side 91 to the twenty-second lower side 104;

[0069] The thickness of the right middle plastic wood board 31 refers to the distance from the thirteenth upper side 92 to the eighteenth lower side 93, and the width refers to the distance from the ninth right side 84 to the eleventh left side 86; the thickness of the right middle plastic wood board 32 refers to the distance from the thirteenth left side 94 to the twelfth right side 95, and the height refers to the distance from the eleventh upper side 81 to the eighteenth lower side 93;

[0070] The upper side of the plastic wood left connecting plate 5 is the fourteenth upper side 77, and the lower side is the nineteenth lower side 78; the upper side of the plastic wood right connecting plate 6 is the fifteenth upper side 96, and the lower side is the twentieth lower side 97; the upper side of the plastic wood right side plate 7 is the sixteenth upper side 98, the lower side is the twenty-first lower side 99, and the right side is the thirteenth right side 100; the left side of the rectangular groove 33 is the fourteenth left side 101, the right side is the fourteenth right side 102, and the upper side of the bottom is the seventeenth upper side 103;

[0071] The left end of the plastic wood left connecting plate 5 is vertically connected to the second right side 45 to form an integral structure, and the right end is vertically connected to the sixth left side 61 to form an integral structure; the left end of the plastic wood right connecting plate 6 is vertically connected to the sixth right side 65 to form an integral structure, and the right end is vertically connected to the tenth left side 83 to form an integral structure; the left end of the plastic wood right side plate 7 is vertically connected to the eleventh right side 90 to form an integral structure;

[0072] The thickness of the plastic wood left connecting plate 5 refers to the distance from the fourteenth upper side 77 to the nineteenth lower side 78, and the width refers to the distance from the second right side 45 to the sixth left side 61; the thickness of the plastic wood right connecting plate 6 refers to the distance from the fifteenth upper side 96 to the twentieth lower side 97, and the width refers to the distance from the sixth right side 65 to the tenth left side 83; the thickness of the plastic wood right side plate 7 refers to the distance from the sixteenth upper side 98 to the twenty-first lower side 99, and the width refers to the distance from the eleventh right side 90 to the thirteenth right side 100; the width of the rectangular groove 33 refers to the distance from the fourteenth left side 101 to the fourteenth right side 102, and the depth refers to the distance from the sixteenth upper side 98 to the seventeenth upper side 103;

[0073] The distance between the first lower side 35 and the fourth lower side 43 is 3 mm; the distance between the eleventh right side 90 and the fourteenth left side 101 is 7 mm.

[0074] The fourth lower side 43, the fifth lower side 46, the tenth lower side 63, the eleventh lower side 66, the sixteenth lower side 85, the twenty-first lower side 99 and the twenty-second lower side 104 are located on the same horizontal plane, and the twenty-first lower side 99 and the twenty-second lower side 104 are connected to form an integral structure;

[0075] The third upper side 39 , the seventh upper side 59 , the fourteenth upper side 77 , the eleventh upper side 81 , the seventeenth lower side 88 and the fifteenth upper side 96 are located on the same horizontal plane.

[0076] When producing double-sided co-extruded plastic wood fence panels, only the cross-section and Figure 2 Using a consistent mold, various raw materials are mixed and extruded together in different extruders, and finally combined in the mold to extrude together, thus realizing the continuous and rapid production of double-sided co-extruded plastic wood fence panels.

[0077] It should be noted that the anti-aging outer structural layer 001 and the plastic wood inner structural layer 002 mentioned in the embodiment are not produced separately, but are completed simultaneously as a whole in the machine. In other words, the anti-aging outer structural layer 001 and the plastic wood left insert 1, plastic wood left board 2, plastic wood middle board 3, plastic wood right board 4, plastic wood left connecting board 5, plastic wood right connecting board 6, and plastic wood right side board 7 mentioned in the embodiment are not produced separately, but are completed simultaneously as a whole in the machine. In addition, terms such as "connected to form an integral structure," "formed," and "composed" mentioned in the embodiment mean that the various parts of the fence board are automatically manufactured as a whole using the raw materials used during the production process, without the need for additional manual operation or the addition of some auxiliary connecting parts.

[0078] At the same time, it should be noted that, in this article, relational terms such as up, down, left, right, middle, horizontal, vertical, inside, outside, bottom, side, etc. and their combinations are only used to distinguish one entity from another, and do not necessarily require or imply any actual relationship or order between these entities.

[0079] While the present invention has been described above with reference to exemplary embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the disclosed embodiments may be combined with one another in any manner. The omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. Double-sided co-extruded wood fence board, characterized by The anti-aging outer structural layer and the plastic wood inner structural layer are co-extruded on both sides to form an integral structure. The anti-aging outer structural layer is evenly coated on the outer periphery of the plastic wood inner structural layer. The plastic wood inner structural layer is specifically composed of a plastic wood left insert board, a plastic wood left board, a plastic wood middle board, a plastic wood right board, a plastic wood left connecting board, a plastic wood right connecting board and a plastic wood right board; the plastic wood left board is composed of a plastic wood upper left horizontal board, a plastic wood lower left horizontal board, a plastic wood left vertical board, a plastic wood left vertical board, a plastic wood left hollow cylindrical board, a plastic wood left middle left horizontal board, a plastic wood left middle right horizontal board, a plastic wood left middle upper The vertical board and the left, middle and lower vertical board of the plastic wood are composed; the plastic wood middle board is composed of the upper middle horizontal board of the plastic wood, the lower middle horizontal board of the plastic wood, the middle left vertical board of the plastic wood, the middle right vertical board of the plastic wood, the hollow cylindrical board of the plastic wood, the middle left horizontal board of the plastic wood, the middle right horizontal board of the plastic wood, the middle upper vertical board of the plastic wood and the middle lower vertical board of the plastic wood; the plastic wood right board is composed of the upper right horizontal board of the plastic wood, the lower right horizontal board of the plastic wood, the right left vertical board of the plastic wood, the right upper vertical board of the plastic wood, the right lower vertical board of the plastic wood, the right middle horizontal board of the plastic wood and the right middle vertical board of the plastic wood; the plastic wood right side board has a rectangular groove; The lower side of the upper left horizontal plate of the plastic wood is the second lower side; the upper side of the lower left horizontal plate of the plastic wood is the third upper side; the left side of the left vertical plate of the plastic wood is the second left side, the right side is the first right side, and the lower side is the fourth lower side; the left side of the left and right vertical plates of the plastic wood is the third left side, the right side is the second right side, and the lower side is the fifth lower side; the outer arc edge of the left hollow cylindrical plate of the plastic wood is the first outer arc edge; the lower side of the middle upper horizontal plate of the plastic wood is the eighth lower side; the upper side of the middle lower horizontal plate of the plastic wood is the seventh upper side; the left side of the middle left vertical plate of the plastic wood is the sixth left side, the right side is the fifth right side, and the lower side is the tenth lower side; the left side of the middle right vertical plate of the plastic wood is the seventh left side, the right side is the sixth right side, and the lower side The outer arc edge of the hollow cylindrical plate in the plastic wood is the second outer arc edge; the upper side of the plastic wood lower right horizontal plate is the eleventh upper side; the left side of the plastic wood right vertical plate is the tenth left side, the right side is the ninth right side, and the lower side is the sixteenth lower side; the left side of the plastic wood right upper vertical plate is the eleventh left side, and the lower side is the seventeenth lower side; the left side of the plastic wood right lower vertical plate is the twelfth left side, the right side is the eleventh right side, and the lower side is the twenty-second lower side; the lower side of the plastic wood right middle horizontal plate is the eighteenth lower side; the upper side of the plastic wood left connecting plate is the fourteenth upper side; the upper side of the plastic wood right connecting plate is the fifteenth upper side; the lower side of the plastic wood right side plate is the twenty-first lower side; The right end of the plastic wood left insert board is vertically connected to the second left side to form an integral structure; the left end of the plastic wood upper left horizontal board is vertically connected to the upper end of the plastic wood left vertical board to form an integral structure, and the right end is vertically connected to the upper end of the plastic wood left and right vertical boards to form an integral structure; the left end of the plastic wood lower left horizontal board is vertically connected to the first right side to form an integral structure, and the right end is vertically connected to the third left side to form an integral structure; the plastic wood left hollow cylindrical board is located between the plastic wood upper left horizontal board, the plastic wood lower left horizontal board, the plastic wood left vertical board and the plastic wood left and right vertical boards, the left end of the plastic wood left middle left horizontal board is vertically connected to the first right side to form an integral structure, and the right end is connected to the left outer arc edge of the first outer arc edge to form an integral structure, the right end of the plastic wood left middle right horizontal board is vertically connected to the third left side to form an integral structure, and the left end is connected to the first outer The right outer arc edge of the arc edge is connected to form an integral structure, the upper end of the left middle upper vertical plate of the plastic wood is vertically connected to the second lower side edge to form an integral structure, and the lower end is connected to the upper outer arc edge of the first outer arc edge to form an integral structure, the lower end of the left middle lower vertical plate of the plastic wood is vertically connected to the third upper side edge to form an integral structure, and the upper end is connected to the lower outer arc edge of the first outer arc edge to form an integral structure; the left end of the upper horizontal plate of the plastic wood is vertically connected to the upper end of the left vertical plate of the plastic wood to form an integral structure, and the right end is vertically connected to the upper end of the right vertical plate of the plastic wood to form an integral structure; the left end of the lower horizontal plate of the plastic wood is vertically connected to the fifth right side edge to form an integral structure, and the right end is vertically connected to the seventh left side edge to form an integral structure; the hollow cylindrical plate in the plastic wood is located between the upper horizontal plate of the plastic wood, the lower horizontal plate of the plastic wood, the left vertical plate of the plastic wood and the right vertical plate of the plastic wood The left end of the left horizontal board in the plastic wood center is vertically connected to the fifth right side to form an integral structure, and the right end is connected to the left outer arc side of the second outer arc side to form an integral structure. The right end of the right horizontal board in the plastic wood center is vertically connected to the seventh left side to form an integral structure, and the left end is connected to the right outer arc side of the second outer arc side to form an integral structure. The upper end of the upper vertical board in the plastic wood center is vertically connected to the eighth lower side to form an integral structure, and the lower end is connected to the upper outer arc side of the second outer arc side to form an integral structure. The lower end of the lower vertical board in the plastic wood center is vertically connected to the seventh upper side to form an integral structure, and the upper end is connected to the lower outer arc side of the second outer arc side to form an integral structure: the left end of the upper right horizontal board of the plastic wood center is vertically connected to the upper end of the right left vertical board of the plastic wood center to form an integral structure, and the right end is vertically connected to the upper end of the right upper vertical board of the plastic wood center to form an integral structure; the tenth The first left side partially overlaps with the eleventh right side; the left end of the plastic wood lower right horizontal board is vertically connected to the ninth right side to form an integral structure, and the right end is vertically connected to the twelfth left side to form an integral structure; the left end of the plastic wood right middle horizontal board is vertically connected to the ninth right side to form an integral structure, and the right end is vertically connected to the eleventh left side to form an integral structure; the upper end of the plastic wood right middle vertical board is vertically connected to the eighteenth lower side to form an integral structure, and the lower end is vertically connected to the eleventh upper side to form an integral structure; the left end of the plastic wood left connecting board is vertically connected to the second right side to form an integral structure, and the right end is vertically connected to the sixth left side to form an integral structure; the left end of the plastic wood right connecting board is vertically connected to the sixth right side to form an integral structure, and the right end is vertically connected to the tenth left side to form an integral structure;The left end of the plastic wood right side panel is vertically connected to the eleventh right side to form an integral structure.

2. The double-sided co-extruded wood fence board according to claim 1, characterized in that The thickness of the plastic wood upper left horizontal board, plastic wood lower left horizontal board, plastic wood left vertical board, plastic wood left and right vertical boards, plastic wood middle upper horizontal board, plastic wood middle lower horizontal board, plastic wood middle left vertical board, plastic wood middle right vertical board, plastic wood upper right horizontal board, plastic wood lower right horizontal board, plastic wood right left vertical board, plastic wood right upper right vertical board and plastic wood right lower right vertical board are uniform and equal to each other; the width of the plastic wood upper left horizontal board, plastic wood lower left horizontal board, plastic wood middle upper horizontal board, plastic wood middle lower horizontal board and plastic wood right upper horizontal board are equal; the height of the plastic wood left and left vertical board, plastic wood left and right vertical board, plastic wood middle left vertical board, plastic wood middle right vertical board and plastic wood right left vertical board are equal; the height of the plastic wood right upper right vertical board and plastic wood right lower right vertical board are equal.

3. The double-sided co-extruded wood fence board according to claim 1, characterized in that The thickness of the plastic wood left hollow cylindrical plate, plastic wood left middle left horizontal plate, plastic wood left middle right horizontal plate, plastic wood left middle upper vertical plate, plastic wood left middle lower vertical plate, plastic wood middle hollow cylindrical plate, plastic wood middle left horizontal plate, plastic wood middle right horizontal plate, plastic wood middle middle upper vertical plate, plastic wood middle middle lower vertical plate, plastic wood right middle horizontal plate and plastic wood right middle vertical plate are uniform and equal to each other; the width of the plastic wood left middle left horizontal plate, plastic wood left middle right horizontal plate, plastic wood middle middle left horizontal plate and plastic wood middle middle right horizontal plate are the same; the height of the plastic wood left middle upper vertical plate, plastic wood left middle lower vertical plate, plastic wood middle middle upper vertical plate and plastic wood middle middle lower vertical plate are the same.

4. The double-sided co-extruded wood fence board according to claim 1, characterized in that The left plastic wood connecting plate and the right plastic wood connecting plate have the same thickness and width.

5. The double-sided co-extruded wood fence board according to claim 1, characterized in that The fourth lower side, the fifth lower side, the tenth lower side, the eleventh lower side, the sixteenth lower side, the twenty-first lower side and the twenty-second lower side are in the same horizontal plane, and the twenty-first lower side and the twenty-second lower side are connected to form an integral structure.

6. The double-sided co-extruded wood fence board according to claim 1, characterized in that The third upper side, the seventh upper side, the fourteenth upper side, the eleventh upper side, the seventeenth lower side and the fifteenth upper side are in the same horizontal plane.

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