CN105287102A

CN105287102A - Buffering and pressure reduction earplug

Info

Publication number: CN105287102A
Application number: CN201510739320.3A
Authority: CN
Inventors: 姚文娟; 袁银胜; 崔存玉; 马剑威; 陈懿强
Original assignee: University of Shanghai for Science and Technology
Current assignee: University of Shanghai for Science and Technology
Priority date: 2015-11-04
Filing date: 2015-11-04
Publication date: 2016-02-03

Abstract

The invention relates to a buffering and pressure reduction earplug which comprises rubber sealing rings, a sleeve, filter nets and a plurality of small light elastic balls. The rubber sealing rings are arranged on the outer sides of the two ends of the sleeve. External air is prevented from entering the auditory meatus. The filter nets are arranged at the two ends and the middle of the inner side of the sleeve. The multiple small light elastic balls are arranged at the intervals between every two of the three filter nets. The middle filter net can move leftwards and rightwards. The buffering and pressure reduction earplug can well protect the hearing organ against influences of ambient pressure changes on the condition that the audition is not affected, and the wide application prospect and obvious economic effects are achieved.

Description

A kind of buffering decompression earplug

Technical field

The invention belongs to ear structure resist technology field, specifically a kind of buffering decompression earplug.

Background technology

Along with take off or decline, the dive of diver or floating, and the situation such as blast impulse, capital makes the acute variation of the outer air pressure of ear, this all can produce impact in various degree to tympanum, middle ear and internal ear, the lighter causes ear tenderness, tinnitus, severe one then causes the perforation of ear drum, ossicular chain to damage and cochlea damage, thus affects audition.

When ear external pressure sharply changes, because pharyngotympanic tube does not open or poor aeration in time, tympanum pressurized is caved in, the tensioning of ossicular chain ligament, if when pressure is excessive, likely makes ligament injury or fracture, even cause fracture of ossicles.

At present, there have been some decompression earplugs both at home and abroad, slowed down the pressure differential inside and outside tympanum, protection ear.But from the effect used, be not fine.To decompression earplug conventional on the market, from the principle of its decompression, mainly employ sound filter, micro-pore and air chamber and porous ceramics etc. and alleviate air pressure change, do not play iris action when draught head is excessive.So need to improve existing decompression earplug, principle being carried out improve, is the most effective approach.

Summary of the invention

The object of the invention is to overcome existing decompression earplug; effect of easing stress is not good; affect the deficiencies such as audition, provide a kind of buffering decompression earplug, this decompression earplug can not only effectively intercept atmospheric pressure difference simultaneously; no matter whether pharyngotympanic tube is unobstructed simultaneously; can play decompressing effect, its maximum advantage plays the effect of bidirectional decompression buffering, so be no matter run into ambient pressure when sharply increasing or decline; well can protect ear, protect our audition to be without prejudice.

For achieving the above object, the technical scheme that the present invention solves the employing of this problem is:

A kind of buffering decompression earplug, comprises rubber seal, sleeve pipe, filter screen and lightweight flexible bead; Described rubber seal is arranged at outside the two ends of sleeve pipe, prevents ambient atmos from entering in auditory meatus, and described filter screen is arranged at two ends inside sleeve pipe and middle part, and some lightweight flexible beads are arranged in the interval of three filter screens, and middle filter screen can move left and right.

Described filter screen is provided with some mesh, and the diameter of described mesh is less than the diameter of lightweight flexible bead.

The operation principle of this decompression earplug is, due to the air-flow that ambient pressure change produces, when air-flow velocity reaches certain value, the bead of decompression earplug is driven to move to the direction that air pressure is low, be blocked when running into filter screen, block the circular hole on filter screen simultaneously, thus block air-flow, low-pressure area air pressure is not increased in continuation.The effect of such formation is that auditory meatus internal gas pressure can not produce and sharply changes, and so also just protects ear's organ.

Compared with prior art, the invention has the beneficial effects as follows:

The present invention, while decompression, does not affect audition, and when external and internal pressure difference tends to balance, in decompression earplug, bead returns to loose condition (of surface), and air-flow can be unobstructed.When ambient pressure is low time, experience same process, also can reach the effect slowing down pressure change, play the effect of bidirectional decompression.

Accompanying drawing explanation

Fig. 1 is buffering decompression earplug front schematic view.

Fig. 2 is buffering decompression earplug side schematic view.

Fig. 3 is buffering decompression earplug A-A profile.

Fig. 4 is buffering decompression earplug B-B profile.

Fig. 5 is filter screen organigram.

Fig. 6 is buffering decompression earplug placement schematic diagram.

Fig. 7 is buffering decompression earplug principle schematic.

Detailed description of the invention

Details are as follows by reference to the accompanying drawings for one embodiment of the present of invention:

See Fig. 1 to Fig. 6, a kind of buffering decompression earplug, comprises rubber seal 1, sleeve pipe 2, filter screen 3 and lightweight flexible bead 4; Described rubber seal 1 is arranged at outside the two ends of sleeve pipe 2, prevent ambient atmos from entering in auditory meatus, described filter screen 3 is arranged at two ends inside sleeve pipe 2 and middle part, and some lightweight flexible beads 4 are arranged in the interval of three filter screens 3, and middle filter screen 3 can move left and right.

Described filter screen 3 is provided with some mesh, and the diameter of described mesh is less than the diameter of lightweight flexible bead 4.

As can be seen from Figure 7, when external auditory meatus air pressure sharply increases, buffering decompression earplug is inside and outside forms draught head, thus generation air-flow, air-flow drives lightweight flexible bead 4 to move, when running into filter screen 3 to the direction that air pressure is low, fill mesh, so just can block air-flow.When the earplug inner and outer air pressure that reduces pressure tends to balance, lightweight flexible bead 4 returns to loose condition (of surface).At this moment can not affect audition, and well can protect organon auditus.When ambient pressure sharply reduces, by same process, also can reach the effect slowing down pressure change, play the effect of bidirectional decompression.

Claims

1. a buffering decompression earplug, is characterized in that, comprise rubber seal (1), sleeve pipe (2), filter screen (3) and lightweight flexible bead (4); Described rubber seal (1) is arranged at outside the two ends of sleeve pipe (2), prevent ambient atmos from entering in auditory meatus, described filter screen (3) is arranged at two ends and the middle part of sleeve pipe (2) inner side, some lightweight flexible beads (4) are arranged in the interval of three filter screens (3), and middle filter screen (3) can move left and right.

2. buffering decompression earplug according to claim 1, it is characterized in that, described filter screen (3) is provided with some mesh, and the diameter of described mesh is less than the diameter of lightweight flexible bead (4).