Soundproof composite door

Abstract

The invention discloses a soundproof composite door. The soundproof composite door comprises a door panel and a door frame, the door panel comprises an inner soundproof board, an outer soundproof board disposed under the inner soundproof board and a frame which is connected with the inner soundproof board and the outer soundproof board through mortise and tenon and used for fixing the door panel.A first composite fiber board which is attached to the inner soundproof board and used for increasing the strength of the door panel is arranged on the lower surface of the inner soundproof board, anda second composite fiber board which is attached to the outer soundproof board and used for increasing the strength of the door panel is arranged on the upper surface of the outer soundproof board. Asound absorbing sponge layer is arranged between the first composite fiber board and the second composite fiber board. The soundproof composite door has the advantages of high hardness and good soundabsorption and noise reduction effects, is durable and safe and environmentally friendly, and is suitable for a variety of occasions.

Description

technical field [0001] The invention relates to a soundproof composite door. Background technique [0002] With the rapid development of industrialization and urbanization, the pollution of urban noise has inevitably been intensified, and has become a major hazard to human beings. Noise can cause a variety of diseases. In addition to hearing damage, noise can also cause other personal damage. Noise can also cause restlessness, nervousness, rapid heartbeat and increased blood pressure. Noise can also reduce the secretion of saliva and gastric juice, gastric acid Reduced susceptibility to gastric and duodenal ulcers. Working in a noisy environment for a long time can also cause obstacles to neurological function. Human experiments under laboratory conditions have proved that under the influence of noise, human brain waves can change. For example, when the noise is 80-85 decibels, people tend to be very excited, feel fatigued, and have headaches mostly in the temporal fronta...

AI Technical Summary

Problems solved by technology

[0003] The general structure of the composite door is inner frame + door core + decorative panel. Various performances and grades are determined according to the material and method of each component. A door made of two or more main materials does not need to be painted because the composite door does not need to be painted. It saves cost, and also saves a lot of oil workers. The key is that there is no paint pollution, not easy to deform, and there are many patterns on the facade, smooth lines, bright colors, clear natural texture, firm texture, and beautiful visual three-dimensional effect; therefore, composite doors become More and more people choose it, and although the existing composite doors are low in cost and elegant in appearance, their sound insulation and noise reduction effects are average.

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