CN219423134U - Noise-reducing earplug - Google Patents

Abstract

The utility model provides a noise-reducing earplug, which comprises a rope body and two earplug heads connected to two ends of the rope body, wherein each earplug head comprises: a sound filtering part; and the flexible compression part is wrapped outside the sound filtering part and at least partially radially increases from front to back. Through setting up flexible compression portion wraps up in locate the portion of straining, the compressibility of flexible compression portion can laminate the external auditory meatus of equidimension well, and the flexible characteristic of flexible compression portion does not harm the external auditory meatus, and user's use experience is better. Simultaneously, the rope body is connected with two earplug heads, the situation that one of the earplug heads is lost is difficult to appear, and when the earplug head needs to be pulled out of the external auditory meatus, the rope body can be utilized to be pulled out.

Description

Noise-reducing earplug

Technical Field

The utility model relates to the technical field of earplug equipment, in particular to a noise-reducing earplug with good noise-reducing effect.

Background

The earplug is generally made of silica gel, high-elasticity polyester material or low-pressure foam material, and is inserted into the auditory canal and closely contacted with the external auditory canal to physically obstruct sound waves from entering the inner ear, so that sound is isolated from entering the middle ear and the inner ear, and the purpose of sound insulation is achieved, thereby enabling people to obtain quite study, work and sleeping environments.

However, the existing earplugs are generally fixed in size and shape, but the ear canals of people are quite different, if the ear canals are too large or too small, the use of the earplugs is inconvenient, and the fitting effect of the earplugs and the ear canals is easily affected. Meanwhile, the earplug is easy to excessively plug into the external auditory canal when in use, and is easy to cause inconvenience when the earplug needs to be taken out.

Disclosure of Invention

In view of the above, the present utility model provides a noise reduction earplug in which a flexible compression portion is provided to fit external auditory meatus of different sizes, and a string is provided to facilitate removal of an earplug from the external auditory meatus.

The utility model provides a noise-reducing earplug, which comprises a rope body and two earplug heads connected to two ends of the rope body, wherein each earplug head comprises: a sound filtering part; the flexible compression part is wrapped up in and locates outside the sound filtering part, the radial increase of flexible compression part from preceding backward at least part, flexible compression part is including from preceding globular portion, increase portion, first ladder portion and the second ladder portion that connect gradually backward, flexible compression part is compressible elastic material and makes.

Further, the flexible compression part is concavely provided with a matching part from back to front, the front end of the matching part is positioned at the part of the first step part, and the sound filtering part is fixedly arranged at the matching part; the flexible compression part is made of sponge.

Further, the first step portion includes a first buffer portion and a first flange portion, the first buffer portion increases radially from front to back and the slope increases first and decreases first and second, the first flange portion continues the first buffer portion and does not change radially from front to back, the second step portion includes a second buffer portion and a second flange portion, the second buffer portion continues the first flange portion increases radially from front to back and the slope increases first and decreases first and second flange portion continues the second buffer portion and does not change radially from front to back.

Further, the sound filtering part comprises an outer ring, an inner ring and a filter embedded in the outer ring and the inner ring, the outer ring is communicated with the inner ring, the filter is inserted forward and exceeds the outer ring forward, the inner ring is inserted into the filter forward, and a first filter object and a second filter object are arranged in the filter.

Further, the front end of filter is the column, the front end of filter with have the space volume between the flexible compression portion, the rear end of filter radially outwards evaginates and is equipped with two at least step portions, two step portion symmetry sets up, the outer loop is equipped with the fender portion, the outer loop is link up from front to back, the filter stretches into forward in the outer loop, fender portion keeps out step portion.

Further, a circle of first convex ribs are arranged at the middle position of the filter in a radially outwards protruding mode, the front ends of the first convex ribs are slope surfaces, and the first convex ribs resist the blocking portions.

Further, at least one clamping groove is radially concavely formed in the inner wall of the rear end of the filter, a protruding block is arranged on the outer wall of the inner ring corresponding to the clamping groove, and the protruding block is resisted by the clamping groove.

Further, the rear end of the inner ring is radially outwards protruded and provided with a circle of second convex ribs, and the second convex ribs are accommodated in the outer ring and resist the rear end of the filter so as to prevent the filter from being separated from the rear end of the outer ring.

Further, the filter is communicated from front to back, the first filter is a filter, the first filter is embedded in the front end of the filter from front to back, the second filter is filter cotton, and the second filter is embedded in the filter from back to front.

Further, the outer ring is further provided with a rope ring in a protruding mode, the rope body is connected to the inner ring, and the rope body penetrates through the rope ring forwards from the rear end of the inner ring.

Compared with the prior art, the noise reduction earplug has the following beneficial effects: through setting up flexible compression portion wraps up in locate the portion of straining, the compressibility of flexible compression portion can laminate the external auditory meatus of equidimension well, and the flexible characteristic of flexible compression portion does not harm the external auditory meatus, and user's use experience is better. Simultaneously, the rope body is connected with two earplug heads, the situation that one of the earplug heads is lost is difficult to appear, and when the earplug head needs to be pulled out of the external auditory meatus, the rope body can be utilized to be pulled out.

Drawings

FIG. 1 is a perspective view of a noise reducing earplug of the utility model;

FIG. 2 is an exploded view of the earplug head and rope of the utility model;

fig. 3 is a cross-sectional view of the plug head and the rope of the present utility model.

Detailed Description

For a better understanding of the utility model with objects, structures, features, and effects, the utility model will be described further with reference to the drawings and to the detailed description.

As shown in fig. 1 to 3, which are schematic views of the noise reduction earplug 100 of the utility model, the noise reduction earplug 100 includes a string 1 and two earplug heads 2 connected to two ends of the string 1. Each earplug head 2 comprises a sound filtering part 3 and a flexible compression part 4 wrapped outside the sound filtering part 3, wherein the flexible compression part 4 is at least partially radially increased from front to back.

Through setting up flexible compression portion 4 is wrapped up in and is located strain sound portion 3, flexible compression portion 4's compressibility can laminate the external auditory meatus of equidimension well, and flexible characteristic of flexible compression portion 4 does not hinder the external auditory meatus, and user's use experience is better. Simultaneously, the rope body 1 is connected with two earplug heads 2, so that the situation that one earplug head 2 is lost is not easy to occur, and when the earplug heads 2 are required to be pulled out from the external auditory meatus, the rope body 1 can be utilized to be pulled out. It should be appreciated that the noise reduction earplug 100 may be used in a variety of settings, such as learning where noise is to be isolated to focus on learning, work where noise reduction is to be performed to reduce the harm of noise to the ear, sleeping where noise is to be isolated to sleep as soon as possible, etc.

It should be appreciated that the earplug heads 2 are typically used in a dual pair to meet both the sound and noise damping requirements of the left and right ears. However, the earplug head 2 may also be used singly. Also, the earplug head 2 may be replaced and replaced to maintain the overall performance of the noise reduction earplug 100.

As shown in fig. 2 and 3, the flexible compression portion 4 includes a spherical portion 41, an enlarged portion 42, a first step portion 43 and a second step portion 44, which are sequentially connected from front to back, the flexible compression portion 4 is concavely provided with a mating portion 45 from back to front, the front end of the mating portion 45 is located at a portion of the first step portion 43, and the sound filtering portion 3 is fixedly disposed on the mating portion 45. The front end of the flexible compression part 4 is the spherical part 41, which is used as a foundation for the shape of the whole radial increase, and the spherical part 41 is round and does not hurt the external auditory meatus in the process of entering the external auditory meatus, so that the use of the user is more comfortable. The bulbous portion 41 is generally partially hemispherical, alternatively the bulbous portion 41 may be hemispherical, partially spherical, cylindrical, rectilinear, or any other desirable shape that facilitates insertion into the external auditory canal. The first step portion 43 includes a first buffer portion 431 and a first flange portion 432, the first buffer portion 431 increases radially from front to back and the slope increases first to back, the first flange portion 432 continues the first buffer portion 431 and does not change radially from front to back, the second step portion 44 includes a second buffer portion 441 and a second flange portion 442, the second buffer portion 441 continues the first flange portion 432 increases radially from front to back and the slope increases first to back, and the second flange portion 442 continues the second buffer portion 441 and does not change radially from front to back.

The continuously extending spherical portion 41, the enlarged portion 42, the first buffer portion 431, the first flange portion 432, the second buffer portion 441 and the second flange portion 442 allow the outer surface of the flexible compression portion 4 to have a gradation change instead of a completely smooth surface, so that the contact between the flexible compression portion 4 and the external auditory meatus maintains a proper resistance in a smooth state, preventing the excessive insertion of the earplug head 2 from injuring the internal auditory meatus.

The ball-shaped portion 41, the enlarged portion 42, the first stepped portion 43 and the second stepped portion 44 of the flexible compression portion 4 are provided from front to back, so that the flexible compression portion 4 has a longer length in the front-rear direction, and at the same time, is integrally radially enlarged from front to back, so that the flexible compression portion 4 is easily inserted into the external auditory meatus and fixed in place. The spherical portion 41, the enlarged portion 42, the first stepped portion 43 and the second stepped portion 44 extend continuously, the contact between the flexible compression portion 4 and the external auditory meatus is softer, and the external auditory meatus is not injured in the process of inserting and extracting the flexible compression portion 4 into and from the external auditory meatus. On the other hand, the whole radial direction of the flexible compression part 4 increases from front to back, and each part of the flexible compression part 4 extends continuously, and the inner structure of the flexible compression part 4 is tightly connected, so that the flexible compression part 4 can absorb noise, and the part with larger diameter of the flexible compression part 4 is closer to the outside of the ear, so that the noise can be absorbed at the beginning, and the sound intensity transmitted into the ear is weakened. In this embodiment, the flexible compression portion 4 is made of a sponge. Of course, the material of the flexible compression part 4 may be made of other compressible elastic materials, for example, compressible elastic plastic or rubber materials or combinations, as long as the flexible and compressible characteristics are met.

As shown in fig. 2 and 3, the sound filtering portion 3 includes an outer ring 31, an inner ring 32, and a filter 33 embedded in the outer ring 31 and the inner ring 32, the outer ring 31 is penetrated from front to back, the filter 33 is inserted forward and extends forward beyond the outer ring 31, the inner ring 32 is inserted forward into the filter 33, and a first filter 34 and a second filter 35 are provided in the filter 33. In this embodiment, the filter 33 is perforated in front and back, the first filter 34 is a filter, the first filter 34 is embedded in the front end of the filter 33 from front to back, the second filter 35 is filter cotton, and the second filter 35 is embedded in the filter 33 from back to front. Of course, in other embodiments, the first filter 34 and the second filter 35 may be other filter substances. By providing the first filter 34 and the second filter 35 in the filter 33 at the same time, the double filtering effect enhances the sound filtering effect of the filter 33, thereby enhancing the noise reducing and insulating effect of the noise reducing earplug 100.

As shown in fig. 2 and 3, the rear end of the filter 33 is radially outwardly protruded with at least two stepped portions 331, and the two stepped portions 331 are symmetrically arranged; the middle position of the filter 33 is radially and outwardly protruded with a circle of first ribs 332, the front end of the first ribs 332 is a slope surface, and a limit space is formed between the step portion 331 and the first ribs 332. Meanwhile, at least one slot 333 is radially recessed in the inner wall of the rear end of the filter 33. Of course, in other embodiments, the step 331 may be one or more or one turn, as long as the limit space may be formed between the step 331 and the first rib 332.

In this embodiment, the front end of the filter 33 has an irregular column shape. In other embodiments, the front end of the filter 33 may have a regular cylindrical shape, a space volume is formed between the front end of the filter 33 and the flexible compression portion 4, and during the process of inserting the noise reduction earplug 100 into the external auditory meatus, the flexible compression portion 4 may collapse to fill the space volume (not shown, the same applies below), and when the noise reduction earplug 100 is positioned in the external auditory meatus, the flexible compression portion 4 may rebound to be attached to the external auditory meatus.

As shown in fig. 2 and 3, the outer ring 31 is provided with a blocking portion 311, the filter 33 is inserted into the outer ring 31 forward, the front end of the first rib 332 is a slope surface, so that the first rib 332 may press to pass through the blocking portion 311 and beyond the front end of the outer ring 31, the blocking portion 311 abuts against the step portion 331, the first rib 332 abuts against the blocking portion 311, that is, the blocking portion 311 enters the limit space, the blocking portion 311 of the outer ring 31 and the first rib 332 and the step portion 331 of the filter 33 are limited to each other, and thus the outer ring 31 and the filter 33 are limited to each other.

As shown in fig. 2 and 3, the outer wall of the inner ring 32 is provided with a protrusion 321 corresponding to the clamping groove 333, and the clamping groove 333 abuts against the protrusion 321. The rear end of the inner ring 32 is radially and outwardly protruded with a circle of second ribs 322, and the second ribs 322 are accommodated in the outer ring 31 and resist the rear end of the filter 33, so as to prevent the filter 33 from being separated from the rear end of the outer ring 31. The protruding block 321 and the clamping groove 333 are in interference fit, or the second protruding rib 322 and the outer ring 31 are in interference fit, or the protruding block 321 and the clamping groove 333 are in interference fit, and meanwhile, the second protruding rib 322 and the outer ring 31 are in interference fit, so as to ensure the fixation between the inner ring 32 and the filter 33 and/or the fixation between the inner ring 32 and the outer ring 31. In this embodiment, the number of the bumps 321 is one, and of course, in other embodiments, the number of the bumps 321 is not limited thereto.

As shown in fig. 2 and 3, the sound filtering portion 3 is fixedly disposed on the mating portion 45, and the flexible compression portion 4 is wrapped around the sound filtering portion 3. Since the front end of the engaging portion 45 is located at the portion of the first step portion 43, most of the sound filtering portion 3 can be accommodated in the engaging portion 45. Specifically, at least a portion of the blocking portion 311 of the outer ring 31 is received and fixed in the mating portion 45, so as to ensure stability between the sound filtering portion 3 and the flexible compression portion 4, and prevent the sound filtering portion 3 from being separated from the flexible compression portion 4.

It should be understood that in other embodiments, a fixing ring (not shown) is further disposed in the mating portion 45, and the fixing ring is sleeved on the front end of the sound filtering portion 3, specifically, the fixing ring is sleeved on the front end of the filter 33, and fixes the front end of the filter 33 in the mating portion 45. The fixing ring is in interference fit with the front end of the filter 33 and the mating portion 45 at the same time, or the fixing ring is adhered in the mating portion 45 or adhered to the front end of the filter 33, so as to fasten the front end of the filter 33 and the mating portion 45, that is, fasten the sound filtering portion 3 and the flexible compression portion 4.

In this embodiment, the outer ring 31, the inner ring 32, the filter 33 and the fixing ring are made of silica gel, and the silica gel has a certain rigidity, so as to facilitate the operation of the noise reduction earplug 100 and the insertion and extraction of the noise reduction earplug 100 with respect to the external auditory meatus. Of course, in other embodiments, the materials of the outer ring 31, the inner ring 32, the filter 33 and the fixing ring are not limited thereto.

As shown in fig. 1 to 3, the outer ring 31 is further provided with a rope ring 312, the rope body 1 is connected to the inner ring 32, and the rope body 1 passes through the rope ring 312 from the rear end of the inner ring 32. The rope ring 312 makes the rope body 1 detoured forward, so that the phenomenon that the inner ring 32 is easily pulled out when the rope body 1 is pulled is prevented, and the whole noise reduction earplug 100 is more stable.

The above detailed description is merely illustrative of the preferred embodiments of the utility model and is not intended to limit the scope of the utility model, so that all equivalent technical changes that can be made by the present specification and illustrations are included in the scope of the utility model.

Claims (10)

1. The utility model provides an earplug of making an uproar falls, includes the rope body and connect in two earplug heads at rope body both ends, its characterized in that, each earplug head includes:

a sound filtering part;

the flexible compression part is wrapped up in and locates outside the sound filtering part, the radial increase of flexible compression part from preceding backward at least part, flexible compression part is including from preceding globular portion, increase portion, first ladder portion and the second ladder portion that connect gradually backward, flexible compression part is compressible elastic material and makes.

2. The noise reducing earplug of claim 1, wherein: the flexible compression part is concavely provided with a matching part from back to front, the front end of the matching part is positioned at the part of the first step part, and the sound filtering part is fixedly arranged at the matching part; the flexible compression part is made of sponge.

3. The noise reducing earplug of claim 2, wherein: the first step portion comprises a first buffer portion and a first flange portion, the first buffer portion increases radially from front to back and the slope increases first and then decreases, the first flange portion continues the first buffer portion and does not change radially from front to back, the second step portion comprises a second buffer portion and a second flange portion, the second buffer portion continues the first flange portion increases radially from front to back and the slope increases first and then decreases, and the second flange portion continues the second buffer portion and does not change radially from front to back.

4. The noise reducing earplug of claim 1, wherein: the sound filtering part comprises an outer ring, an inner ring and a filter embedded in the outer ring and the inner ring, wherein the outer ring is penetrated from front to back, the filter is inserted forward and exceeds the outer ring forward, the inner ring is inserted forward into the filter, and a first filter object and a second filter object are arranged in the filter.

5. The noise reducing earplug of claim 4, wherein: the front end of the filter is columnar, a space volume is reserved between the front end of the filter and the flexible compression part, at least two stepped parts are radially outwards protruded at the rear end of the filter, the two stepped parts are symmetrically arranged, the outer ring is provided with a blocking part, the filter extends into the outer ring forwards, and the blocking part resists the stepped parts.

6. The noise reducing earplug of claim 5, wherein: the middle position of the filter is radially outwards protruded with a circle of first convex ribs, the front ends of the first convex ribs are slope surfaces, and the first convex ribs resist the blocking parts.

7. The noise reducing earplug of claim 4, wherein: at least one clamping groove is radially concavely formed in the inner wall of the rear end of the filter, a protruding block is arranged on the outer wall of the inner ring corresponding to the clamping groove, and the protruding block is resisted by the clamping groove.

8. The noise reducing earplug of claim 7, wherein: the rear end of the inner ring is radially outwards protruded and provided with a circle of second convex ribs, and the second convex ribs are accommodated in the outer ring and resist the rear end of the filter so as to prevent the filter from being separated from the rear end of the outer ring.

9. The noise reducing earplug of claim 4, wherein: the filter is communicated from front to back, the first filter is a filter, the first filter is embedded in the front end of the filter from front to back, the second filter is filter cotton, and the second filter is embedded in the filter from back to front.

10. The noise reducing earplug of claim 4, wherein: the outer ring is also convexly provided with a rope ring, the rope body is connected with the inner ring, and the rope body passes through the rope ring forwards from the rear end of the inner ring.