CN213477188U

CN213477188U - Annular bamboo cross section structural assembly for surrounding rotary-cut raw bamboo

Info

Publication number: CN213477188U
Application number: CN202020493772.4U
Authority: CN
Inventors: 李海涛; 苏靖文; 李淑恒; 郑晓燕
Original assignee: Nanjing Forestry University
Current assignee: Nanjing Forestry University
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2021-06-18
Anticipated expiration: 2030-04-07

Abstract

The utility model relates to a circle rotary-cut raw bamboo annular bamboo matter cross section structure subassembly, its key feature is that, the component mainly comprises two types of base material, and one type is the circular thick bamboo tube that rotary-cut raw bamboo formed, and another type is winding bamboo layer. The round bamboo tube is formed by rotationally cutting bamboo joints and bamboo green protruding from the surface layer of an original bamboo tube until the surface is smooth and the outer diameter is uniform and performing antiseptic treatment. The circular bamboo tube is positioned in the center of the component. The winding bamboo layer can be manufactured by 4 different processing technologies, the winding bamboo layer is tightly attached to the round bamboo tube and is thick in wall thickness, the bamboo layer is divided into three layers, and the fiber direction is consistent with the length direction of the component; the middle layer is 5mm-30mm, and the fiber direction and the axial line direction of the component form an included angle of 30-45 degrees; the outermost layer is 6mm-30mm, and the fiber direction and the axial line direction of the component form an included angle of 90 degrees. The interior of the round bamboo tube can be hollow or can be filled with one or more materials. The utility model discloses the new way that the bamboo timber utilized has been opened up.

Description

Annular bamboo cross section structural assembly for surrounding rotary-cut raw bamboo

Technical Field

The utility model relates to a circle rotary-cut former bamboo annular bamboo matter cross section structure subassembly belongs to civil engineering technical field.

Background

An important subject of the current architectural community is the problem of building and ecological environment, concepts such as 'green building' and 'ecological building' come into play, and under the large environment of industrialization, urbanization and rapid development of new rural construction, our country puts forward a call for deeply promoting building energy conservation and accelerating development of green buildings, so that the industrialization of modern bamboo-wood structure green buildings becomes a great demand of national sustainable development.

Bamboo is produced in China, the quantity and quality of bamboo are at the top of the world, the bamboo can be regenerated and degraded, the bamboo can be made into timber in 3-5 years, the tensile strength of the bamboo is about 2 times of that of the timber, the compressive strength of the bamboo is about 1.5 times of that of the timber, the specific strength of the bamboo is higher than that of common timber, structural steel, aluminum alloy, concrete and the like, the bamboo has better elasticity and toughness and strong deformability, and the house is built by replacing concrete, steel or clay bricks and the like with the bamboo and a composite material formed by the bamboo and other materials, so that the house accords with the national green development concept.

With the acceleration of the progress of national transformation economic development mode, the development of low-carbon economy is taken as the rapid promotion of the country, the protection policy of natural forest and artificial forest culture is increasingly strict, the contradiction between the supply quantity of wood and the demand quantity of structural members is increasingly prominent, the development space of the structural members taking wood as raw material is greatly compressed, and the promotion of the biomass material members provides a direction for effectively protecting forest resources.

With the rapid development of the wood member industry in China, the insufficient supply of wood raw materials becomes a main factor restricting the development of the wood members in China. The seeking of the alternative material of the wood becomes the problem which needs to be solved urgently in the development of the wood components in China. The application of the biomass material combined member with the characteristics of high quality, low price, environmental protection, low pollution, recycling and the like to replace wood raw materials inevitably has wide market space.

Disclosure of Invention

The utility model aims to provide a wind rotary-cut raw bamboo annular bamboo matter cross-section structure subassembly to prior art not enough.

The technical scheme of the utility model as follows:

the utility model relates to a circular bamboo cross section structural component of rotary-cut raw bamboo, which is mainly characterized in that the inner center of the component is a circular bamboo tube 1 which is used for cutting off bamboo joint protruding parts and bamboo green from a natural raw bamboo tube to be smooth in surface, uniform in outer diameter and subjected to high-temperature high-humidity antiseptic treatment, a winding smooth-grained bamboo layer 2 with thicker wall thickness is tightly attached to the circular bamboo tube 1, the thickness of the winding smooth-grained bamboo layer is not less than 10mm, and the fiber direction is consistent with the length direction of the component; the twill bamboo layer 3 is tightly attached to the grain bamboo layer 2, the thickness is 5mm-30mm, and the fiber direction and the component axial lead direction form an included angle of 30-45 degrees; the bamboo layer 3 clinging to the twill bamboo layer is a cross grain bamboo layer 4, the thickness is 6mm-30mm, and the fiber direction and the component axial lead direction form an included angle of 90 degrees.

Follow grain bamboo layer 2, twill bamboo layer 3 and horizontal line bamboo layer 4, its manufacturing technology has 4 types: the first type: after antiseptic and mildew-proof treatment, the natural raw bamboo tube is directly cut into a large-breadth bamboo skin in a rotary mode, and the large-breadth bamboo skin is wound into a bamboo tube body around the central line of a component; second, flattening the processed raw bamboo, rotary cutting into bamboo skin, and winding into a bamboo cylinder; in the third category: breaking raw bamboos into thin bamboo strips or thin bamboo strips, weaving into bamboo curtains or bamboo mats, and winding into bamboo cylinders; and fourthly, rotary cutting the large-width single plates of various engineering bamboo materials such as the manufactured bamboo recombined material, the bamboo laminated material, the bamboo woven glued material and the like into bamboo skins, and winding the bamboo skins into the bamboo barrel.

The round bamboo tube 1 can be replaced by round or polygonal winding biomass tubes, PVC tubes, FRP tubes and metal tubes, the interior of the combined member can be hollow, and can also be filled with one or more materials of bamboo, wood, wheat straw, rice straw, corn stalk, sorghum stalk, bean stalk, pepper stalk, rape stalk, flax stalk, reed stalk, cotton stalk and/or waste wood and scraps thereof, concrete, soil, mortar, gypsum, lime, various building garbage crushed materials and the like.

Drawings

Fig. 1 is a schematic view of a first embodiment of a circular bamboo section structural assembly of rotary-cut raw bamboo.

Fig. 2 is a schematic view of a second embodiment of a circular bamboo section structural assembly of rotary-cut raw bamboo.

In the figure: 1 is a round bamboo tube; 2 is a bamboo layer with grain; 3 is a twill bamboo layer; 4 is the striated bamboo layer.

Detailed Description

For further explanation of the present invention, the following detailed description of the present invention is provided with reference to the drawings, but these should not be construed as limitations on the scope of the present invention.

Compared with the attached drawings, the utility model relates to an annular bamboo cross section structural component of surrounding rotary-cut raw bamboo, which is mainly characterized in that the inner center of the component is a circular bamboo tube 1 which is obtained by cutting off bamboo joint protruding parts and bamboo green on a natural raw bamboo tube in a rotary manner to be smooth in surface, uniform in outer diameter and subjected to high-temperature high-humidity anti-corrosion treatment, a winding consequent-grain bamboo layer 2 with thicker wall thickness is tightly attached to the circular bamboo tube 1, the thickness of the winding consequent-grain bamboo layer is not less than 10mm, and the fiber direction is consistent with the length direction of the component; the twill bamboo layer 3 is tightly attached to the grain bamboo layer 2, the thickness is 5mm-30mm, and the fiber direction and the component axial lead direction form an included angle of 30-45 degrees; the bamboo layer 3 clinging to the twill bamboo layer is a cross grain bamboo layer 4, the thickness is 6mm-30mm, and the fiber direction and the component axial lead direction form an included angle of 90 degrees.

Follow grain bamboo layer 2, twill bamboo layer 3 and horizontal line bamboo layer 4, its manufacturing technology has 4 types: the first type: after antiseptic and mildew-proof treatment, the natural raw bamboo tube is directly cut into a large-breadth bamboo skin in a rotary mode, and the large-breadth bamboo skin is wound into a bamboo tube body around the central line of a component; second, flattening the processed raw bamboo, rotary cutting or slicing the raw bamboo into bamboo skins, and winding the bamboo skins into bamboo cylinders; in the third category: breaking raw bamboos into thin bamboo strips or thin bamboo strips, weaving into bamboo curtains or bamboo mats, and winding into bamboo cylinders; and fourthly, rotary cutting or slicing the large-width single board of various engineering bamboo materials such as the manufactured bamboo recombined material, the bamboo laminated material, the bamboo woven glued material and the like into bamboo skin, and then winding the bamboo skin into a bamboo barrel.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a circular bamboo matter cross section structure subassembly of former bamboo of surrounding rotary-cut, its characterized in that: the center in the component is a round bamboo tube (1) which is obtained by cutting off the protruding part of the bamboo joint and the bamboo green of a natural raw bamboo tube in a rotating way until the surface is smooth, the outer diameter is uniform and the round bamboo tube is subjected to high-temperature high-humidity anti-corrosion treatment, a winding grain bamboo layer (2) with thicker wall thickness is tightly attached to the round bamboo tube (1), the thickness of the winding grain bamboo layer is not less than 10mm, and the fiber direction is consistent with the length direction of the component; the twill bamboo layer (3) is tightly attached to the grain bamboo layer (2), the thickness is 5mm-30mm, and the fiber direction forms an included angle of 30-45 degrees with the axial line direction of the component; the bamboo layer (3) clinging to the twill bamboo layer is a horizontal grain bamboo layer (4), the thickness is 6mm-30mm, and the fiber direction and the axial line direction of the component form an included angle of 90 degrees.

2. The circular bamboo section structure component of rotary-cut raw bamboo according to claim 1, wherein: the longitudinal bamboo layer (2), the twill bamboo layer (3) and the transverse bamboo layer (4) are bamboo cylinders formed by spirally cutting bamboo skins into bamboo skins and winding the bamboo skins after antiseptic and mildew-proof treatment, or bamboo cylinders formed by winding bamboo skins obtained by spirally cutting flattened raw bamboos, or bamboo cylinders formed by winding bamboo curtains or bamboo mats, or bamboo cylinders formed by spirally cutting engineering bamboos such as bamboo recombined materials, bamboo integrated materials, bamboo woven glued materials and the like.

3. The circular bamboo section structure component of rotary-cut raw bamboo according to claim 1, wherein: the round bamboo tube (1) can be replaced by a round or polygonal winding biomass tube, a PVC tube, an FRP tube and a metal tube, the inside of the combined member is hollow, or the combined member is filled with one material of bamboo, wood, wheat straw, corn stalk, sorghum stalk, bean stalk, pepper stalk, rape stalk, flax stalk, reed stalk, cotton stalk, waste wood, scraps, concrete, soil, mortar, gypsum, lime and construction waste crushed materials.