CN201367811Y - Sound-insulating and venting window - Google Patents

Abstract

The utility model provides a window, which is transformed from an ordinary double-glazed window. On the side of the outer window frame where there is no glass, there are pairs of circular ventilation holes, and the paired two circular ventilation holes pass through a ventilation tube with a T-shaped tee and a circular ventilation hole on the inner layer of the window frame. Connected, the T-shaped tee is composed of two equal-length and symmetrical arm cavities and a vent pipe. The two arms of the T-shaped tee are made into a 45-degree oblique reflection surface at the corner. Buildings equipped with such windows can not only isolate outdoor noise pollution, but also maintain indoor and outdoor ventilation, and are suitable for people to work, study and live therein.

Description

A kind of soundproof ventilation window

technical field

The utility model relates to a window for a living place, in particular to a window where the external noise pollution is relatively serious and the indoor is an office, study and living place, and belongs to the field of construction.

Background technique

With the development of urban economy and the increasing number of outdoor traffic vehicles and other noise sources, noise pollution in office, study and living places has become a very prominent problem. The most effective way to reduce noise at present is to install double-layer soundproof glass, but after closing the window, ventilation cannot be ventilated, which brings great inconvenience to people's life.

Contents of the invention

The purpose of this utility model is to provide a kind of not only soundproof but also ventilated window for people who work, study and live in buildings with serious noise pollution.

The technical scheme of the utility model is: this window is a further improvement to the window with outer layer glass, window frame and inner layer glass, and this window has a pair of circular ventilation holes on the edge of the outer layer window frame where there is no glass , there is a circular ventilation hole on the edge of the inner window frame where there is no glass, the paired two circular ventilation holes communicate with the ends of the two arms of the T-shaped three-way ventilation pipe in the window frame cavity, T The other port of the T-shaped three-way air pipe is communicated with the circular air hole on the inner layer of the window frame, and the T-shaped three-way air pipe has two equal-length and symmetrical arm cavities.

The two arms of the T-shaped tee form a 45-degree oblique reflective surface at the corner.

The sound insulation principle of this window is: according to the principle of sound wave interference, it can be considered that the sound waves from the same external noise source arrive at the window almost at the same time, and the two rows of sound waves entering from the paired two circular air holes on the outer layer of the window frame are along the same length and curved After the two arm cavities propagate, they arrive at the intersection of the two arms and the ventilation pipe at the same time. No matter what the frequency of the sound wave is, since the two columns of sound waves arrive at the window almost at the same time, it can be considered that their initial phases are the same, and the propagation distance in the two arm cavities is And equal, the phase at the intersection of the two arms and the ventilation pipe must be the same, because the sound wave is a longitudinal wave, and the vibration direction is along the propagation direction, so the vibration directions of the two waves at the intersection of the two arms and the ventilation pipe are opposite, cancel each other, and the combined vibration is always is zero; only a small part of the sound waves continue to propagate forward, and propagate to the outside along the arm cavity where another row of sound waves enters. Therefore, only a very small amount of sound waves are turned 90 degrees, and finally reach the circular air holes in the inner layer of the window frame, and their sound wave intensity is significantly weakened.

The beneficial effects of the utility model are: due to the adoption of the window with the above structure, most of the noise pollution outside the house is isolated, and the very small amount of noise entering the room no longer has too much influence on people. Because the air vent is left on the window frame, the indoor and outdoor air can be exchanged, which overcomes the inconvenience to people's life that the double-glazed window cannot be ventilated.

Description of drawings

When viewed from the outside, Fig. 1 is a front view of the utility model window;

Fig. 2 is the rear view of the utility model window;

Fig. 3 is the sectional view of ventilation unit A-A' on the window of the utility model along the window frame.

In the figure, 1. Outer glass; 2. Window frame; 3. Paired round air holes; 4. T-shaped three-way air pipe; 5. Inner glass; 6. Round air holes.

Detailed ways

Ordinary double-glazed glass is installed on the window frame made of aluminum alloy or plastic steel, and there are pairs of circular ventilation holes on the edge of the outer window frame without glass. The T-shaped three-way ventilation pipe of the arm is connected to the ventilation hole of the inner layer window frame. The T-shaped three-way vent pipe is made of transparent plastic pipe or white PVC pipe, and the corner is made into a 45-degree bend. The connection between the T-shaped three-way vent pipe and the vent holes on the inner and outer layers of the window frame is made of transparent fixed with glass glue. Ventilation pipes are arranged along the edge of the window frame, which will not affect the lighting and appearance, and the number can be determined according to the ventilation needs. The diameters of the circular vent holes (3) (6) can vary from 1 to 3 cm. It is also possible to select the appropriate length of the ventilation pipe according to the main frequency range of the specific noise source to achieve the best sound insulation effect.

Claims (2)

1, a kind of sound-proof and ventilating window, comprise glass outer (1), window frame (2), inner layer glass (5), it is characterized in that: this window no glass place on the limit of outer window frame has paired circular air-vent (3), no glass place has circular air-vent (6) on the limit of internal layer window frame, the end, two arm chambeies of the T type threeway permeability cell (4) in these paired two circular air-vents (3) and window frame (2) chamber is communicated with, the another port of T type threeway permeability cell (4) then is communicated with circular air-vent (6) on the window frame internal layer, and described T type threeway permeability cell (4) has two isometric and symmetrical arm chambeies.

2, a kind of sound-proof and ventilating window according to claim 1 is characterized in that: two arms of described T type threeway permeability cell (4) are made the oblique reflection face of 45 degree in the corner.

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