Impact-resistant splice plate

Abstract

The invention belongs to the technical field of floors, and particularly discloses an impact-resistant splice plate. The splice plate comprises a core layer, a surface layer arranged above the core layer and a bottom layer arranged below the core layer, the core layer is formed by joggling a plurality of splice units, and each splice unit is formed by single finger joint or continuous finger jointof a plurality of splice blocks with the same width and thickness. The finger joint positions on the adjacent splice units are distributed in a staggered manner; the joggling direction of the spliceunits is perpendicular to or substantially perpendicular to the finger joint direction, and joggling between the adjacent splice units is achieved through matching of tenons and mortises which are formed in the length direction of the adjacent splice units in a penetrating manner; balance layers are arranged between the core layer and the surface layer and between the core layer and the bottom layer respectively, and the balance layers are glass fiber mesh cloth or carbon fiber mesh cloth coated with thermoplastic elastomer materials; and a plurality of sunken permeation parts are arranged onthe upper surface and the lower surface of the core layer. The splice plate disclosed by the invention is good in impact resistance, high in strength, moisture-resistant, dampproof, good in structurestability, and long in service life.

Description

Technical field [0001] The invention belongs to the technical field of floors, and particularly relates to an impact-resistant splicing board. technical background [0002] With the rapid development of economy, the gradual improvement of people's living standard and the further increase of wood consumption, the prices of wood products in China have risen, and the prices of solid wood flooring and multi-layer solid wood composite flooring with precious tree species as their bark have been rising steadily. In order to alleviate the contradiction between supply and demand in the wood flooring market, and to protect the precious tree species in China and realize sustainable development, how to apply leftover wood strips to wood flooring has become a top priority for many wood flooring manufacturers. [0003] At present, there are also some manufacturers who produce wooden floors spliced by discarded wooden strips, mostly finger-jointed boards. Finger-jointed boards are assembled by ...

AI Technical Summary

Problems solved by technology

There are multiple tooth joint structures in the horizontal direction on the finger joint board, which has good resistance to horizontal force, while vertical force can easily damage the tooth joint structure of the finger joint board. In actual use, the finger joint Most of the force on the board is the vertical impact force, so the stability of the finger joint board is poor, and the impact resistance level is insufficient

The tooth-joint structure is not only a weak point for stress, but also a point susceptible to moisture. Moisture can easily penetrate into the interior of the board from the gap of the tooth-joint structure, resulting in distortion and rapid aging of the finger-joint board, further weakening the mechanical properties

Therefore, the existing finger-joint boards have a short service life and are difficult to popularize and apply

[0004] Chinese utility model patent CN208152475U discloses a high-strength encapsulation finger-joint board, which wraps the finger-joint structure layer by setting a veneer layer and flat wooden strips, which improves the overall compactness and strength, and strengthens the overall bending resistance. The patent effectively improves the stability of the finger-joint structure layer, but the impact force received by the finger-joint is directly transferred to the veneer layer, which will slowly destroy the combination of the veneer layer and the finger-joint structure layer, resulting in delamination; and the finger-joint board The waterproof ability has not been significantly improved. In addition, there are many joints, which are easily deformed or even delaminated by moisture in a high-humidity environment. Therefore, the service life of the finger joint board described in this patent is not long.

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