Pressure-resistant and torsion-resistant straw board

Abstract

The utility model relates to a compression-resistant and torsion-resistant straw board, which belongs to the technical field of building straw boards and comprises an upper fixing layer, a lower fixing layer and a plurality of roll-shaped multi-layer composites, and the upper fixing layer and the lower fixing layer are vertically arranged in parallel at intervals. And the plurality of multi-layer composites are arranged between the upper fixing layer and the lower fixing layer in a manner that the unrolled ends of the multi-layer composites are arranged in a crossed manner and are fixed on the upper fixing layer and the lower fixing layer. According to the straw board, the structural layout of a traditional straw board is broken through, and the straw board can be endowed with higher compression resistance and side face bending resistance by fixing the multiple roll-shaped multi-layer composites between the upper fixing layer and the lower fixing layer.

Description

Technical Field

[0001] The utility model relates to the technical field of building straw boards, and particularly relates to a straw board with pressure resistance and torsion resistance. Background Art

[0002] A straw board is a composite material prepared with straw as the main body combined with a variety of reinforcing or modifying materials, and is widely used in the production of building structures and decorative materials. The straw board can effectively utilize the renewable resource of straw, reduce the dependence on traditional wood, and thus relieve the exploitation pressure on forest resources.

[0003] During the preparation process of the straw board, inorganic materials are generally added as binders, which can endow it with good strength and durability, making it relatively light in weight while maintaining a high load-bearing capacity, facilitating transportation and installation, and having excellent flame retardant properties, which helps to reduce the fire risk; at the same time, the low water absorption rate of inorganic materials enables the board to remain stable in a humid environment; in addition, due to the inherent properties of inorganic materials, the straw board has small dimensional changes under conditions of temperature and humidity fluctuations and is not prone to deformation or cracking.

[0004] However, most of the existing straw boards are prepared in a layered structure, and the substrate and the binding material or the facing material are prone to delamination and peeling, small load-bearing capacity, and poor bending resistance during use.

[0005] Therefore, how to design a straw board with pressure resistance, torsion resistance and not prone to delamination and peeling is an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0006] The utility model provides a straw board with pressure resistance and torsion resistance, and solves the technical problems of easy delamination and peeling, small load-bearing capacity and poor bending resistance of the existing straw board.

[0007] The technical solution of the utility model to solve the above technical problems is as follows: a straw board with pressure resistance and torsion resistance, comprising: an upper fixing layer, a lower fixing layer and a plurality of rolled multi-layer complexes.

[0008] The upper fixing layer and the lower fixing layer are arranged parallel to each other at an interval; the plurality of multi-layer complexes are arranged between the upper fixing layer and the lower fixing layer in an arrangement manner with their unrolled ends crossed externally and fixed on the upper fixing layer and the lower fixing layer.

[0009] The beneficial effect of the utility model is: breaking through the structural layout of the traditional straw board, by fixing a plurality of rolled multi-layer complexes between the upper fixing layer and the lower fixing layer, the straw board can be endowed with higher compressive and lateral bending resistance.

[0010] On the basis of the above technical solution, the utility model can also be improved as follows.

[0011] Furthermore, the multi-layer composite body is formed by curling an outer stabilizing layer, a straw layer, and an inner stabilizing layer that are adhesively connected in sequence from outside to inside.

[0012] The beneficial effect of the above further aspect is that the multi-layer composite body formed by curling the outer stabilizing layer, the straw layer, and the inner stabilizing layer that are adhesively connected in sequence from outside to inside can enhance the lateral bending resistance of the multi-layer composite body.

[0013] In addition, a method for preparing a pressure-resistant and torsion-resistant straw board is provided, and the specific steps are as follows:

[0014] S1. According to the basic parameters of the board to be prepared, select an outer stabilizing layer with a suitable size and lay the outer stabilizing layer flat on a steel flat plate;

[0015] S2. According to the usage requirements of the board, prepare the straw layer by a conventional method, evenly lay the straw board layer on the outer stabilizing layer, and then cover the inner stabilizing layer on the upper surface of the straw layer;

[0016] S3. Start curling the multi-layer composite body composed of the outer stabilizing layer, the straw layer, and the inner stabilizing layer from one end;

[0017] S4. Place the curled multi-layer composite body on the pressure plate where the lower fixing layer has been laid in a method of arranging the non-curled ends crosswise outside;

[0018] S5. Cover the upper fixing layer on the upper surface of the arranged multi-layer composite body, and then complete the preparation of the board under the action of a press. Description of the Drawings

[0019] Figure 1 It is a schematic structural view of the non-curled multi-layer composite body in a pressure-resistant and torsion-resistant straw board of the present invention;

[0020] Figure 2 It is a schematic structural view of the curled multi-layer composite body in a pressure-resistant and torsion-resistant straw board of the present invention;

[0021] Figure 3 It is a schematic structural view of the multi-layer composite body, the upper fixing layer, and the lower fixing layer without being extruded in a pressure-resistant and torsion-resistant straw board of the present invention;

[0022] Figure 4 It is a three-dimensional structural view of a pressure-resistant and torsion-resistant straw board of the present invention;

[0023] Figure 5 It is a three-dimensional structural view of the multi-layer composite body in a pressure-resistant and torsion-resistant straw board of the present invention;

[0024] Figure 6 It is a front view structural view of the multi-layer composite body in a pressure-resistant and torsion-resistant straw board of the present invention.

[0025] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0026] 1. Outer stabilizing layer, 2. Steel flat plate, 3. Straw layer, 4. Inner stabilizing layer, 5. Lower fixing layer, 6. Pressure plate, 7. Upper fixing layer. Specific embodiments

[0027] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0028] As Figure 4 shown, a straw board with pressure resistance and torsion resistance includes: an upper fixing layer 7, a lower fixing layer 5, and a plurality of rolled multi-layer composites.

[0029] The upper fixing layer 7 and the lower fixing layer 5 are arranged parallel to each other at intervals up and down; a plurality of multi-layer composites are arranged between the upper fixing layer 7 and the lower fixing layer 5 in a way that their unrolled ends are crossed and externally placed, and are fixed on the upper fixing layer 7 and the lower fixing layer 5.

[0030] As Figure 1 and Figure 2 shown, in some specific embodiments, the multi-layer composite is formed by curling an outer stabilizing layer 1, a straw layer 3, and an inner stabilizing layer 4 that are adhesively connected in sequence from the outside to the inside.

[0031] Specifically, the length of the unrolled end of the multi-layer composite is 1.5 times the diameter of the multi-layer composite.

[0032] In addition, a method for preparing a straw board with pressure resistance and torsion resistance is provided, and the specific steps are as follows:

[0033] S1. According to the basic parameters of the board to be prepared, select an outer stabilizing layer 1 with a suitable size, and lay the outer stabilizing layer 1 flat on the steel flat plate 2;

[0034] S2. According to the usage requirements of the board, prepare a straw layer 3 by a conventional method, evenly lay the straw board layer 3 on the outer stabilizing layer 1, and then cover the inner stabilizing layer 4 on the upper surface of the straw layer 3;

[0035] S3. Start curling the multi-layer composite composed of the outer stabilizing layer 1, the straw layer 3, and the inner stabilizing layer 4 from one end;

[0036] S4. Place the curled multi-layer composite on the pressure plate 6 on which the lower fixing layer 5 has been laid in a method that the unrolled ends are crossed and externally placed;

[0037] S5. Cover the upper fixing layer 7 on the upper surface of the arranged multi-layer composite, and then complete the preparation of the board under the action of a press.

[0038] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A compressive and torsion-resistant straw board, characterized in that: include: An upper fixed layer (7) and a lower fixed layer (5), wherein the upper fixed layer (7) and the lower fixed layer (5) are arranged in parallel and spaced apart from each other; A plurality of rolled multilayer composites are arranged between the upper fixing layer (7) and the lower fixing layer (5) in a manner such that their unrolled ends are arranged crosswise and outwardly, and are fixed on the upper fixing layer (7) and the lower fixing layer (5).

2. A compressive and torsion-resistant straw board according to claim 1, characterized in that: The multi-layer composite body is composed of an outer stabilizing layer (1), a straw layer (3) and an inner stabilizing layer (4) which are bonded and connected in sequence from the outside to the inside.

3. The compressive and torsion-resistant straw board according to claim 1, characterized in that: The length of the unrolled end of the multilayer composite is 1.5 times the diameter of the multilayer composite.

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