CN1097296A

CN1097296A - Silencer

Info

Publication number: CN1097296A
Application number: CN 93112486
Authority: CN
Inventors: 姜国先
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-07-10
Filing date: 1993-07-10
Publication date: 1995-01-18

Abstract

The present invention a kind ofly intercepts that sound imports people's ear into and utensil---silencer so as to abating the noise to the easy of the mankind's harm and efficiently.It is made up of a rubber-like arc support I and two sound proof dishes II.Arc support I can make two sound proof dishes II cover human's two ears.High vacuum region is arranged in the sound proof dishes II one---sound-proof wall (8) can intercept external sound with it and import people's ear into, thereby avoid the noise nuisance mankind's effect.The present invention can be used among people's study, work and the life.

Description

Silencer

The present invention a kind ofly intercepts that sound imports people's ear into and device so as to being used for abating the noise to the easy of mankind's harm and efficiently.

As everyone knows, the harm of noise on human is huge, and it can damage people's audition; Can give rise to diseases; Can influence study, work and life of people or the like.In many cases, use present silencing equipment, attempt to eliminate above-mentioned harm, not only costly, and have little effect, even have no effect.

The object of the present invention is to provide a kind of cheapness, easy, be used for abating the noise to the device-silencer of mankind's harm efficiently, it means " utensil that staticizes sound ".

Sound is a kind of propagation phenomenon of vibration condition, and it is indicated as a kind of mechanical wave is sound wave.The condition that produces sound wave has two: the first has the object-sound source of the mechanical vibration done; It two is that the medium of propagating mechanical vibration is arranged.Therefore, fundamentally, the measure of eliminating the sound influence also has two: first cancellation sound source; It two is to remove medium.The present invention has adopted second kind of measure.

Technical scheme of the present invention: between people's ear, high vacuum region is set extraneous, does not promptly have dielectric area, form one sound-proof wall (8), intercept sound with it and enter people's ear.Like this, extraneous sound wave can not propagate into people's ear, thereby reaches the effect of staticizing sound, and means are eliminated the influence of sound to the mankind whereby.As seen, the present invention is as traditional silencing equipment, be to weaken the harm of noise by energy that measures such as sound absorption and vibration damping reduce noise, but by the propagation of obstruct sound wave the mankind are protected.

Below in conjunction with accompanying drawing the present invention is described in detail.

Fig. 1 and Fig. 2 are the structural representations of silencer;

Fig. 3 and Fig. 4 are the structural representations of outer wall (6);

Fig. 5 and Fig. 6 are the structural representations of inwall (7).

Referring to Fig. 1, silencer is made up of an arc support I and two sound proof dishes II.The arc support I has elasticity, on the head that whole silencer is fixed on the people, and make two sound proof dishes II cover human ears, it is made up of the flat cover of arc (1) and two elastic rings (2), there is hook at the elastic ring two ends, in order to connect two sound proof dishes II (shown in Figure 2).The sound proof dishes II is the core of silencer, and its main body is the high vacuum region-sound-proof wall (8) between outer wall (6) (Fig. 3 and Fig. 4 are its structural representations) and the inwall (7) (Fig. 5 and Fig. 6 are its structural representations).The medium that voiceless sound is rely and propagated in the sound-proof wall (8), therefore, it has the effect that intercepts sonic propagation.Outer wall (6) and the available sheet metal of inwall (7) process, and with soldering that both are affixed.There is a hole at outer wall (6) center, and in order to hold cover (4), cover (4) should be made with softer metal, and it and outer wall (6) also use soldering affixed.There is a taper hole at the center of cover (4), and fine vacuum is pumped into sound-proof wall (8) in the hole whereby, and with steel strain (5) this hole is sealed.In the outside of steel strain (5) picein wax (10) is arranged, borrow its fixedly steel strain (5), and increase air-tightness.Each joint to above-mentioned each part all should have good air-tightness, to guarantee the long-term fine vacuum of sound-proof wall (8).In the splicing of outer wall (6) middle part one plastic seating (3) is arranged, connect sound proof dishes II and arc support I with it.Skin at inwall (7) and outer wall (6) is stained with a sponge layer (9), and its effect is the effect that relaxes between silencer and the people's ear.

In sum; the present invention has the following advantages: silencer is made up of an arc support I and two sound proof dishes II; it is provided with sound-proof wall (8) together between the external world and people's ear, wall obstruct sound imports people's ear into whereby, thereby realizes the noise victim is directly protected.Compare with common muffling device, it has easy, inexpensive and characteristics of high efficiency, therefore, can be widely used among people's study, work and the life.

Claims

1, a kind ofly intercepts that sound imports people's ear into and utensil-silencer so as to being used for abating the noise and efficiently to the easy, cheap of mankind's harm.Its architectural feature is:

A. silencer is made up of a flexible arc support I and two sound proof dishes II.

B. in the described sound proof dishes II, be provided with one high vacuum region-sound-proof wall (8), it is the space that interior dish (7) and outer dish (6) are surrounded, and its effect is to intercept sound to import people's ear into; In addition, also be provided with cover (4) and steel strain (5) in the sound proof dishes, so that bleed and seal; Simultaneously, for connect the arc support I and alleviate silencer and people's ear between effect, be provided with plastic seating (3) and spongy layer (9).

C. described arc support I is made up of flat cover of arc (1) and two elastic rings (2), and elastic ring (2) two ends are provided with for a short time and collude.

2, silencer according to claim 1, dish (7) and outer dish (6), outer dish (7) and overlap (4) and all use soldering affixed in described, outer dish (6) and plastic seating (3), interior dish (7) and outer dish (6) and sponge layer (9) are all with engaging.