CN114278045A

CN114278045A - Connection method of plant fiber composite floor

Info

Publication number: CN114278045A
Application number: CN202111617002.1A
Authority: CN
Inventors: 于涛; 廖昊然; 陈梓萱; 纪超; 王晶晶; 李岩
Original assignee: Tongji University
Current assignee: Tongji University
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-04-05

Abstract

The invention relates to a connection method of a plant fiber composite floor, which is used for connecting a plant fiber foam sandwich board (1) with a keel bracket (2), wherein the plant fiber foam sandwich board (1) comprises a hard foam layer (10) and resin layers (11) clamped at two sides of the hard foam layer (10), and the connection method specifically comprises the following steps: (1) grooving the side surface of the rigid foam layer (10) and opening holes on the keel bracket (2); (2) inserting two ends of the gasket (3) with holes into the slots of the two plant fiber foam sandwich boards (1) respectively; (3) and sequentially penetrating bolts through the openings on the gasket (3) with holes and the keel bracket (2) to fix the plant fiber foam sandwich board (1) on the keel bracket (2). Compared with the prior art, the invention has the advantages of simple structure, convenient installation, accurate positioning and the like.

Description

Connection method of plant fiber composite floor

Technical Field

The invention relates to the technical field of floor connection, in particular to a connection method of a plant fiber composite floor.

Background

The composite material foam sandwich floor can greatly reduce the weight of the board, has unique advantages in the aspects of transportation, disassembly and assembly, shock resistance and the like, and has good corrosion resistance and waterproof effects because the whole body of the board is soaked by resin. Currently, the floor panels used outdoors are usually screwed, i.e. the floor panels are screwed through the floor panels and connected to the keel, which significantly deteriorates the strength of the floor panels and is difficult to recycle.

The occurrence of the plant fiber composite floor is late, the mechanical property of the plant fiber can be greatly damaged by the connection mode of direct drilling, so that the advantages of the floor can not be fully exerted, and no connection method suitable for the floor exists at present.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a connection method of a plant fiber composite floor, which has the advantages of simple structure, convenient installation and accurate positioning.

The purpose of the invention can be realized by the following technical scheme:

a method for connecting a plant fiber composite floor is used for connecting a plant fiber foam sandwich board with a keel support, wherein the plant fiber foam sandwich board comprises a rigid foam layer and resin layers clamped on two sides of the rigid foam layer, and specifically comprises the following steps:

(1) slotting the side of the rigid foam layer to facilitate the insertion of the perforated gasket and opening a hole on the keel bracket;

(2) inserting two ends of the gasket with holes into the slots of the two plant fiber foam sandwich boards respectively so as to connect the two plant fiber foam sandwich boards together;

(3) and sequentially penetrating a bolt through the gasket with the holes and the openings on the keel bracket, and fixing the plant fiber foam sandwich plate on the keel bracket. It will be appreciated that the location of the opening in the keel support should be directly below the hole in the apertured spacer, which facilitates the insertion of a bolt through the hole in the apertured spacer and into the keel support to secure the apertured spacer to the keel support.

Further, after the side surface of the hard foam layer is grooved, the groove is polished.

Further, a nut is arranged between the gasket with the hole and the keel support and is in matched connection with the screw.

Furthermore, an auxiliary gasket is arranged between the nut and the keel bracket.

Further, the size of the slot is not larger than the cross-sectional size of the perforated gasket. Or the dimensions of the slots of the plant fiber foam sandwich panel should be comparable to or slightly smaller than the cross-sectional dimensions of the holed gasket. This allows the gasket to be stably and firmly inserted into the floor, thereby serving to align and fix the floor. The size of the slot is generally (1X 17) - (3X 20) mm²。

Further, the diameter of the bolt is not larger than that of the hole in the gasket with the hole, and is not smaller than that of the hole in the keel support. The bolt can pass through the hole of the gasket with holes, is connected with the nut below through the bolt, and forms interference fit with the hole in the keel support, so that the gasket with holes is fastened on the keel support. The bolt is generally 4-10mm in diameter and 10-20mm in length.

Further, the perforated gasket is rectangular in shape, and the length-width ratio is (1-4):1, preferably 2: 1.

Further, the keel bracket is made of wood.

Further, the gasket with the hole, the bolt and the nut are made of moisture-proof and corrosion-resistant materials.

Further, the moisture and corrosion resistant material comprises stainless steel or aluminum alloy.

Compared with the prior art, the invention has the following advantages:

(1) in the invention, the rectangular gasket with holes can accurately align the floor and limit the movement of the floor;

(2) according to the invention, the rectangular gasket with the holes is fixed on the keel by the bolts and the nuts, so that the floor is fixed on the keel, and the installation of the floor is completed;

(3) in general, the invention has simple structure, can reduce the manufacturing cost and is convenient for popularization.

Drawings

FIG. 1 is an overall view of a connection structure in the embodiment;

FIG. 2 is a photograph of an embodiment of an object;

FIG. 3 is a schematic illustration of an embodiment of slotting;

FIG. 4 is a drawing showing an embodiment of a gasket having a hole;

FIG. 5 is a side view of the connection structure in the embodiment;

the reference numbers in the figures indicate: the sandwich panel comprises a plant fiber foam sandwich panel 1, a hard foam layer 10, a resin layer 11, a keel support 2 and a gasket 3 with holes.

Detailed Description

In order to further clarify the objects, features and advantages of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step, based on the given embodiments, fall within the scope of protection of the present application.

The invention is further illustrated by the following examples, which are intended to be purely exemplary of the invention and are not intended to be limiting thereof.

Examples

A method for connecting a plant fiber composite floor is used for connecting a plant fiber foam sandwich panel 1 with a keel support 2, the keel support 2 is made of wood, the plant fiber foam sandwich panel 1 comprises a hard foam layer 10 and resin layers 11 clamped on two sides of the hard foam layer 10, and the method specifically comprises the following steps:

(1) grooving the side surface of the rigid foam layer 10, polishing the groove after grooving so as to facilitate the insertion of the hole gasket 3, and opening a hole on the keel bracket 2; the size of the slot is not greater than the cross-sectional size of the apertured insert 3. Or the dimensions of the slots of the plant fiber foam sandwich panel 1 should be comparable to or slightly smaller than the cross-sectional dimensions of the holed gasket 3. The size of the slot is 2 multiplied by 17mm²。

(2) Inserting two ends of the gasket 3 with holes into the slots of the two plant fiber foam sandwich boards 1 respectively so as to connect the two plant fiber foam sandwich boards 1 together; the gasket 3 with holes is rectangular, 40mm long, 17mm wide and 7mm aperture.

(3) And sequentially penetrating bolts through the perforated gaskets 3 and the openings on the keel bracket 2, and fixing the plant fiber foam sandwich board 1 on the keel bracket 2. It will be appreciated that the open position of the keel support 2 should be directly below the hole in the apertured insert 3. And a nut is also arranged between the gasket 3 with the hole and the keel bracket 2 and is in matched connection with the screw. An auxiliary gasket can be arranged between the nut and the keel bracket 2. The diameter of the bolt is not more than the diameter of the hole on the holed gasket 3 and is not less than the diameter of the hole on the keel bracket 2. Thus, the bolt has a diameter of 5mm and a length of 20 mm. The bolt can pass the hole of foraminiferous gasket 3, carries out bolted connection with the nut of below to form interference fit with the trompil on the fossil fragments support 2, thereby fasten foraminiferous gasket 3 on fossil fragments support 2.

Regarding the materials of the connecting pieces such as the gasket 3 with holes, the bolt and the nut, etc., since the floor is used outdoors and is often subjected to a humid environment, if a material which is easy to rust and age, such as an iron nail, is used, when the connecting piece loosens or falls off due to rust and age, the floor is also affected by tilting, falling off, etc., therefore, the material of the connecting piece should be selected from a material which is difficult to rust in a humid environment, such as aluminum alloy or stainless steel, etc. Preferably, the connecting piece is made of aluminum alloy, and has the advantages of light weight, easy processing and excellent mechanical property.

The method is used for connecting the plant fiber composite floor, and has the advantages of simple operation, small damage to the mechanical property of the floor, detachability, reusability, wide adjustable range of the floor, difficult water accumulation, better moisture resistance and the like.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. The method for connecting the plant fiber composite floor is characterized by being used for connecting a plant fiber foam sandwich board (1) with a keel support (2), wherein the plant fiber foam sandwich board (1) comprises a rigid foam layer (10) and resin layers (11) clamped on two sides of the rigid foam layer (10), and the method specifically comprises the following steps:

(1) grooving the side surface of the rigid foam layer (10) and opening holes on the keel bracket (2);

(2) inserting two ends of the gasket (3) with holes into the slots of the two plant fiber foam sandwich boards (1) respectively;

(3) and sequentially penetrating bolts through the openings on the gasket (3) with holes and the keel bracket (2) to fix the plant fiber foam sandwich board (1) on the keel bracket (2).

2. The method for coupling plant fiber composite floors as claimed in claim 1, wherein the side surface of the rigid foam layer (10) is grooved and then the grooves are ground.

3. The method for connecting plant fiber composite floors as claimed in claim 1, wherein a nut is further provided between the porous washer (3) and the keel support (2), and the nut is in matching connection with the screw.

4. A method for connecting plant fiber composite floors as claimed in claim 3, wherein an auxiliary gasket is further provided between the nut and the keel support (2).

5. A method for connecting plant fiber composite floors as claimed in claim 1, characterized in that the size of said groove is not larger than the cross-sectional size of said holed spacer (3).

6. A method for connecting plant fiber composite floors as claimed in claim 1, characterized in that the diameter of said bolt is not larger than the diameter of the hole of said washer (3) with hole and not smaller than the diameter of the hole of said keel support (2).

7. The method for connecting plant fiber composite floors as claimed in claim 1, wherein the perforated mat (3) is rectangular in shape and has a length to width ratio of (1-4): 1.

8. The method for connecting plant fiber composite floors as claimed in claim 1, wherein the keel support (2) is made of wood.

9. A method for connecting plant fiber composite floors according to claim 3, characterized in that said holed spacer (3), bolt and nut are made of moisture-proof and corrosion-resistant material.

10. The method as claimed in claim 9, wherein the moisture and corrosion resistant material comprises stainless steel or aluminum alloy.