CN112344195A

CN112344195A - a plastic sheet

Info

Publication number: CN112344195A
Application number: CN202011330383.0A
Authority: CN
Inventors: 万金国; 许华丰; 彭忠浩
Original assignee: Ningbo Yinuo Office Supplies Co ltd
Current assignee: Ningbo Yinuo Office Supplies Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-02-09

Abstract

A plastic sheet includes a substrate, the substrate includes a front and a back, the thickness of the middle of the substrate is greater than the thickness of the edge of the substrate, and at least one side of the front and back of the substrate is connected with the middle of the substrate and the edge of the substrate through an inclined plane. At least one side of the plastic sheet of the present invention is an inclined surface, and the overall thickness of the sheet is larger than that of the edges. Compared with the prior art, the advantage is that the inclined surface plays a supporting role, which increases the strength of the board, prevents the board from bending, and has good flatness.

Description

Plastic plate

Technical Field

The invention belongs to the field of materials, and particularly relates to a plastic plate.

Background

The plastic board is made of plastic, and has the characteristics of light weight, water resistance, moisture resistance, recyclability and the like, so that the plastic board is widely applied to the fields of stationery products and office supplies. Especially, in the products such as folders, file frames, file boxes and the like, plastic plates are adopted. However, the existing plastic board has the problems that the strength of the plastic board is not enough, and the plastic board is soft and easy to bend, so that the board is not flat.

Disclosure of Invention

The invention provides a plastic plate with good flatness aiming at the problems.

The technical scheme for solving the problems is as follows: the utility model provides a plastic board, includes the base plate, the base plate includes front and back, the thickness in the middle of the base plate is greater than the thickness of base plate edge, the front and the back of base plate are at least one side through the edge of the middle of inclined plane connection base plate and base plate.

At least one surface of the plastic plate is an inclined surface, and the thickness of the middle of the plate is larger than that of the edge of the plate. Compared with the prior art, the novel plate bending machine has the beneficial effects that the inclined plane plays a supporting role, so that the strength of the plate is increased, the plate is prevented from being bent, and the flatness is good.

Preferably, the substrate is provided with first concave holes uniformly distributed on the surface where the inclined plane is located. The arrangement of the first concave hole enables the weight of the substrate to be reduced, and meanwhile, materials are saved.

Preferably, the surface of the substrate where the inclined surface is located is further provided with second concave holes, the aperture of each second concave hole is smaller than that of each first concave hole, every four second concave holes are rotationally symmetrical by taking the other second concave hole as a center, every four first concave holes are rotationally symmetrical by taking one second concave hole as a center, and every four first concave holes are rotationally symmetrical by taking the other first concave hole as a center. After the arrangement, the reinforcing ribs are formed around the first concave hole, and a plurality of crossed reinforcing ribs are formed on the surface of the substrate by the reinforcing ribs, so that the strength of the plate is enhanced, and the plate is not easy to break.

Preferably, the aperture of the first concave hole is 3mm to 8mm, and the aperture of the second concave hole is 1.1mm to 2.9 mm.

Preferably, the aperture of the first concave hole is 5mm to 6mm, and the aperture of the second concave hole is 1.8mm to 2.3 mm.

Preferably, the thickness of the middle of the substrate is 1.05 to 1.4 times the thickness of the edge of the substrate.

Preferably, the thickness of the middle of the substrate is 1.25 times the thickness of the edge of the substrate.

Preferably, the front surface of the substrate is a plane, and the back surface of the substrate is formed by sequentially connecting four isosceles triangle inclined surfaces. The four isosceles triangle inclined planes form a microscopic pyramid-shaped three-dimensional structure, so that the strength of the plate is better.

Preferably, a rib is arranged on the back surface of the base plate near the edge, and the rib extends along the edge of the base plate. The arrangement of the convex ribs further strengthens the strength of the plate.

Preferably, the first concave hole and the second concave hole are both through holes. This provides for further weight reduction.

Drawings

Fig. 1 is a schematic structural diagram of a plastic plate of the invention.

Fig. 2 is another structural diagram of the plastic plate.

Fig. 3 is a sectional view of a plastic sheet according to the invention.

Fig. 4 is an enlarged view of a portion a in fig. 2.

Fig. 5 is an enlarged view of a portion B in fig. 3.

Fig. 6 is an enlarged view of a portion C in fig. 3.

As shown in the figure: 1. the base plate, 11, the front side, 12, the back side, 101, the first concave hole, 102, the second concave hole, 121, protruding rib.

Detailed Description

The invention is further described with reference to the following drawings and detailed description.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, a plastic sheet includes a substrate 1, in this example, the substrate 1 is rectangular, the substrate 1 includes a front surface 11 and a back surface 12, and the thickness of the middle of the substrate 1 is greater than that of the edge of the substrate 1. The front surface 11 of the substrate 1 is a flat surface, and the middle of the substrate 1 and the edge of the substrate 1 are connected by a slope on the back surface of the substrate 1. The back 12 of the substrate 1 is formed by connecting four isosceles triangle inclined planes in sequence. The vertex angles of the four isosceles triangles are positioned on the central point of the substrate 1, the bottom edges of the four isosceles triangles correspond to the four edges of the substrate, the two waists of each isosceles triangle are respectively connected with the waists of two adjacent isosceles triangles, the waists of each isosceles triangle correspond to the diagonal line of the rectangle, and the four isosceles triangle inclined planes form a microscopic pyramid-shaped three-dimensional structure, so that the strength of the plate is better.

The back of the substrate 1 is uniformly provided with a first concave hole 101 and a second concave hole 102. The aperture of the second concave hole 102 is smaller than that of the first concave hole 101, every four second concave holes 102 are rotationally symmetrical by taking the other second concave hole 102 as a center, every four first concave holes 101 are rotationally symmetrical by taking one second concave hole 102 as a center, and every four first concave holes 101 are rotationally symmetrical by taking the other first concave hole 101 as a center. The ribs are formed around the first concave hole 101, and a plurality of crossed ribs are formed on the surface of the substrate by the ribs, so that the strength of the plate is enhanced, and the plate is not easy to break.

The aperture of the first concave hole 101 is 3mm to 8mm, and the aperture of the second concave hole 102 is 1.1mm to 2.9 mm. Preferably, the aperture of the first recess 101 is 5mm to 6mm, and the aperture of the second recess 102 is 1.8mm to 2.3 mm. In this example, the aperture of the first recess 101 is 5.5mm, and the aperture of the second recess 102 is 2 mm.

The thickness of the middle of the substrate 1 is 1.05 to 1.4 times the thickness of the edge of the substrate 1. The thickness of the middle of the substrate 1 in this example is shown as a in fig. 5 and 2.5mm, the thickness of the edge of the substrate 1 is shown as b in fig. 6 and 2mm, and the thickness of the middle of the substrate 1 is 1.25 times the thickness of the edge of the substrate 1.

The back surface 12 of the base plate 1 is provided with a rib 121 near the edge, and the rib 121 extends along the edge of the base plate 1. The rib 121 may not be annular and may have a break point.

The back surface of the substrate can also be formed by sequentially connecting two isosceles trapezoids and two isosceles triangle inclined planes, and two waists of the isosceles trapezoids are respectively connected with two waists of the isosceles triangles. The short sides of the two isosceles trapezoids are connected and correspond to the central line of the short side of the substrate, the long sides of the two isosceles trapezoids correspond to the long sides of the substrate respectively, the vertexes of the two isosceles triangles are located on the central line of the short side of the substrate, and the bottom sides of the isosceles trapezoids correspond to the short side of the substrate. The back of the substrate can also be formed by connecting a rectangular plane and four isosceles trapezoids, the rectangular plane is positioned in the middle of the substrate and is parallel to the front surface of the substrate, the short sides of the four isosceles trapezoids are respectively connected with the four sides of the rectangular plane, the two waists of the isosceles trapezoids are respectively connected with the waists of the two adjacent trapezoids, and the long sides of the four isosceles trapezoids respectively correspond to the four sides of the substrate.

The front surface and the back surface of the plastic plate can also be inclined surfaces formed by sequentially connecting four isosceles triangle inclined surfaces, and the front surface and the back surface are provided with a first concave hole 101 and a second concave hole 102. The first concave hole 101 and the second concave hole 102 on the front side can be communicated with the first concave hole 101 and the second concave hole 102 on the back side to form a plate with hollowed holes. Or the front surface 11 of the substrate 1 is a plane, the back surface 12 adopts the inclined surface, and the first concave hole 101 and the second concave hole 102 are through holes.

Claims

1. A plastic sheet, comprising a substrate (1), the substrate (1) comprising a front (11) and a back (12), characterized in that: the thickness of the middle of the substrate (1) is greater than the thickness of the edge of the substrate (1) Thickness, at least one side of the front side (11) and the back side (12) of the substrate (1) is connected by the inclined plane between the middle of the substrate (1) and the edge of the substrate (1).

2 . The plastic sheet according to claim 1 , wherein the first concave holes ( 101 ) are uniformly distributed on the surface of the base plate ( 1 ) on which the inclined surface is located. 3 .

3. A plastic sheet according to claim 2, characterized in that: the side where the inclined surface of the base plate (1) is located is further provided with a second concave hole (102), and the second concave hole (102) is The hole diameter is smaller than the hole diameter of the first concave holes (101), every four second concave holes (102) are rotationally symmetric with another second concave hole (102) as the center, and every four first concave holes (101) have a first concave hole (101). The two concave holes (102) are rotationally symmetrical at the center, and every four first concave holes (101) are rotationally symmetrical about the other first concave hole (101) as the center.

4 . The plastic sheet according to claim 1 , wherein the diameter of the first concave hole ( 101 ) is 3 mm˜8 mm, and the diameter of the second concave hole ( 102 ) is 1.1 mm˜2.9 mm. 5 .

5 . The plastic sheet according to claim 4 , wherein the diameter of the first concave hole ( 101 ) is 5 mm˜6 mm, and the diameter of the second concave hole ( 102 ) is 1.8 mm˜2.3 mm. 6 .

6 . The plastic sheet according to claim 1 , wherein the thickness of the middle of the substrate ( 1 ) is 1.05 to 1.4 times the thickness of the edge of the substrate ( 1 ). 7 .

7 . The plastic sheet according to claim 1 , wherein the thickness of the middle of the base plate ( 1 ) is 1.25 times the thickness of the edge of the base plate ( 1 ). 8 .

8 . The plastic sheet according to claim 1 , wherein the front surface ( 11 ) of the substrate ( 1 ) is a plane, and the back surface ( 12 ) of the substrate ( 1 ) is sequentially connected by four isosceles triangle inclined surfaces. 9 . made.

9 . The plastic sheet according to claim 8 , wherein a rib ( 121 ) is provided near the edge of the back surface ( 12 ) of the base plate ( 1 ), and the rib ( 121 ) runs along the base plate ( 9 . 1) Edge extension.

10. The plastic sheet according to claim 3, wherein the first concave hole (101) and the second concave hole (102) are both through holes.