Sound-insulation flame-retardant expanded polystyrene board

Abstract

The invention relates to the technical field of plates, in particular to a sound-insulation flame-retardant expanded polystyrene plate which comprises two plate bodies of the same structure, a connecting mechanism is arranged between the two plate bodies, and gap openings are formed in the upper ends and the lower ends of the adjacent faces of the two plate bodies. T-shaped sliding grooves are formed in the middle positions of the adjacent surfaces of the two plate main bodies. The connecting mechanism comprises a seam beautifying block, a first inserting block, a sliding block, a second inserting block, a connecting block and a third inserting block, a third inserting groove is formed in the upper end face of the connecting block, the third inserting block is movably connected into the third inserting groove in an embedded mode, and the seam beautifying block is fixedly connected to the outer surface of the upper end of the third inserting block. According to the structure of the device, splicing is flexible and convenient, when the phenomena of thermal expansion and cold contraction occur due to the change of the environment temperature, warping and deformation cannot occur, the surface is flat and smooth, and meanwhile the effect of cleaning dust in gaps at the splicing positions of the plates can be achieved by means of the characteristics of thermal expansion and cold contraction of the plates.

Description

technical field [0001] The invention relates to the technical field of boards, in particular to a sound-insulating and flame-retardant foamed polystyrene board. Background technique [0002] Polystyrene plastic boards are obtained directly from polystyrene through injection molding or extrusion processes. Polystyrene plastic boards are cheap and easy to process and shape. They are usually used in building walls, roof insulation, composite board insulation, and vehicles. Thermal insulation, etc., the main structure of the building is protected by the polystyrene plastic board to prolong the life of the building, so the polystyrene plastic board is widely used in various fields; [0003] Existing patent (notification number: CN213534033U) a polystyrene plastic board with flame-retardant, moisture-proof and sound-insulating effects, including a first insert, a second insert, and a plastic board main body. A first insert is installed in the middle of one side of the main body o...

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Problems solved by technology

[0004] 1. Due to the thermal expansion and contraction characteristics of the board, warping and deformation usually occur at the joint of the board, making the surface of the board uneven, reducing the aesthetic effect, greatly reducing the service life of the board, and increasing maintenance Cost, especially for the northwestern region of my country, where the temperature difference between day and night is significant. This phenomenon is particularly prominent for the use of panels; 2. Dust usually accumulates in the gaps at the joints of panels. Due to the large temperature difference between day and night, the surface of panels usually becomes humid. After the dust is damp, the nodules are not easy to clean and the plate is corroded, which greatly increases the difficulty of cleaning and maintaining the plate

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