KR102484289B1 - Earplug for noise blocking - Google Patents

Abstract

Noise blocking earplugs are disclosed. Noise blocking earplugs according to an embodiment of the present invention, when at least a portion is inserted into the user's ear canal, the external ear canal noise blocker for blocking noise introduced from the outside; a support holder detachably coupled to the noise blocker inside the ear canal to support the noise blocker inside the ear canal; And detachably coupled to the opposite side of the part to which the noise blocker inside the ear canal of the support holder is coupled, has a larger diameter than the noise blocker inside the ear canal, and is spaced apart from the entrance of the user's ear canal by a predetermined distance and is disposed on the side of the auricle from the outside. An external noise blocking cover assembly having an external noise blocking plate for blocking incoming noise is included.

Description

Noise blocking earplugs{EARPLUG FOR NOISE BLOCKING}

The present invention relates to a noise blocking earplug, and more particularly, when at least a portion of the earplug is inserted into the user's ear canal, the user's ear canal entrance and auricle side as well as the user's external ear canal through an efficient and compact structure. It relates to a noise blocking earplug that can protect the user's hearing by blocking external noise more completely by simultaneously blocking noise coming from the outside.

In general, earplugs are worn for the purpose of protecting a person's ears from external action, and are developed and marketed for the purpose of soundproofing in high-noise areas and protecting users' hearing.

Recently, the need for user's hearing protection in a high-noise environment has been emerging for a long time to secure life health and user's safety. Therefore, due to this need, efforts in the industry to effectively protect users' hearing and maximize soundproofing have increased.

However, conventional earplugs for reducing noise introduced to the user from the outside are generally manufactured in a single noise blocking method, and thus show limitations in blocking external noise.

Therefore, in order to compensate for this and provide higher sound insulation, ear protectors in the form of headphones as well as earplugs are sometimes additionally installed, which increases the size of equipment to block noise carried by individuals. There are problems that cause poor performance and inconvenience in work.

Therefore, there is a need to develop noise blocking earplugs capable of protecting the user's hearing by more completely blocking external noise through an efficient yet compact structure.

In addition, the production of earplugs of a certain size by a single noise blocking method reduces adaptability to each user when earplugs are inserted into the ear canals of different sizes of various users, and when the earplugs are removed from the user's ear canal, a single noise blocking method of earplugs could cause contamination problems.

For example, one-piece earplugs are difficult to provide in an appropriate size to fit the size of the ear canal of various users, and users may experience discomfort when using earplugs that do not match the size of the user's ear canal. There was a problem that it was difficult to insert and use. In addition, earplugs that do not match the size of the user's ear canal are difficult to properly insert into the user's ear canal, or excessive insertion into the user's ear canal may cause damage to the user's body. In addition, the integrated earplugs may cause contamination of the earplugs when the earplugs are removed from the user's ear canal, and there may be a problem of limiting the user's repeated use.

In other words, since the size of the user's ear canal varies, in the case of an integrated earplug, products must be manufactured in different sizes according to the size of the user's ear canal, which increases product development costs and makes follow-up management difficult. Contamination can easily occur, and the replacement cycle increases according to contamination of the earplugs.

Therefore, it is necessary to develop earplugs that can easily replace a noise blocker for blocking external noise according to the user's convenience. That is, the part of the earplug inserted into the user's ear canal can be easily inserted into the user's ear canal by providing a portion to fit the different ear canal sizes of various users, eliminating the user's discomfort when wearing it, and allowing the user to use it for a longer period of time. It is necessary to provide earplugs that can be comfortably worn while wearing and can effectively protect the user's hearing.

In addition, there is a need to increase user convenience by providing partial replacement due to contamination or damage of each part of the earplug, and it is necessary to increase the use cycle by preventing replacement of the entire earplug due to partial contamination.

Republic of Korea Patent Publication No. 10-2015-0031332, (2015.03.23)

Therefore, the technical problem to be achieved by the present invention is that when at least a portion of the earplug is inserted into the user's ear canal, through an efficient and compact structure, not only the user's ear canal, but also the user's ear canal entrance and the auricle are introduced from the outside at the same time. By blocking noise, it is to provide a noise blocking earplug that can more completely block external noise to protect the user's hearing.

According to one aspect of the present invention, the external ear canal noise blocker for blocking noise introduced from the outside when at least a portion is inserted into the user's ear canal; a support holder detachably coupled to the noise blocker inside the ear canal to support the noise blocker inside the ear canal; And detachably coupled to the opposite side of the support holder to the part to which the noise blocker inside the ear canal is coupled, having a larger diameter than the noise blocker inside the ear canal, and spaced apart from the entrance of the user's ear canal by a predetermined distance and disposed on the side of the auricle. Noise blocking earplugs may be provided, characterized in that they include an external noise blocking cover assembly having an external noise blocking plate for blocking noise introduced from the outside.

The support holder may include: an external auditory meatus internal noise canceling member coupling protrusion to which the external auditory meatus internal noise canceling member is coupled; and an external noise blocking cover assembly coupled portion provided on one side of the external noise blocking cover assembly coupling protrusion inside the ear canal, wherein the external noise blocking cover assembly is coupled to the external noise blocking plate and pivots to the external noise blocking cover assembly coupling portion. It may further include an angle-adjustable coupling that is possibly coupled.

The angle-adjustable coupling unit may include a coupling column provided upright in a central region of the external noise blocking plate; and a spherical coupling protrusion provided at an end of the coupling pillar and fitted into a spherical coupling groove formed in the coupling portion of the external noise blocking cover assembly so that the external noise blocking plate can rotate relative to the support holder. .

The external noise blocking cover assembly may include: a cover cap made of a transparent material detachably coupled to a surface of the external noise blocking plate facing the ear canal; and a plurality of interchangeable design sheets disposed between the external noise blocking plate and the cover cap, designed in various shapes and interchangeable with each other.

It is disposed between the noise blocking member inside the ear canal and the external noise blocking plate and coupled to the support holder, and when at least a portion of the noise blocking member inside the ear canal is inserted into the user's ear canal, at least a portion of the noise blocking member is seated at the entrance of the user's ear canal. It may further include a noise blocker at the entrance of the ear canal to block noise introduced from the outside.

The external auditory meatus inlet noise blocker may include: an external auditory meatus inlet noise blocker body having a through groove through which the support holder passes and is coupled; and a support holder coupling portion coupled to the external auditory meatus entrance noise blocker body forming the through hole and coupled to the support holder.

The support holder coupling portion is provided to protrude from the noise canceling body body at the entrance of the external auditory meatus adjacent to the through hole, and the support holder is spaced apart by a predetermined distance from an end of the noise canceling body coupling protrusion inside the external auditory meatus. It is recessed toward the center and may further include an external auditory meatus inlet noise canceling member engaging groove to which the support holder coupling part of the external auditory meatus inlet noise canceling member is coupled.

The noise blocker inside the ear canal may include: a noise blocker body inside the ear canal; and disposed in a recessed groove formed in the sound blocker body inside the ear canal, coupled to the sound blocker body inside the ear canal, and having a relatively greater hardness than the sound blocker body inside the ear canal, and inside the ear canal of the support holder. It may include a noise blocker coupling tube inside the ear canal to which the noise blocker coupling protrusion is coupled.

Embodiments of the present invention, when at least a portion of the earplug is inserted into the user's ear canal, through an efficient and compact structure, not only the inside of the user's ear canal, but also the entrance of the user's ear canal and the auricle simultaneously block noise introduced from the outside By doing so, it is possible to protect the user's hearing by blocking external noise more completely.

1 is a perspective view showing a noise blocking earplug according to an embodiment of the present invention.
Figure 2 is a perspective view showing the disassembled noise blocking earplugs of Figure 1;
FIG. 3 is a side cross-sectional view showing a cross section of the noise blocking earplug of FIG. 1 in which the noise blocking earplug is disassembled, and is a view for explaining the coupling relationship of the noise blocking earplug.
FIG. 4 is a side view of the noise blocking earplug of FIG. 1, illustrating an operation in which the noise blocking member inside the external auditory canal and the noise blocking member at the entrance of the external auditory meatus are rotated with respect to the external noise blocking cover assembly to adjust the angle.

In order to fully understand the present invention and the advantages in operation of the present invention and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements.

1 is a perspective view showing a noise blocking earplug according to an embodiment of the present invention, FIG. 2 is a perspective view showing an exploded noise blocking earplug of FIG. 1, and FIG. 3 is an exploded cross-section of the noise blocking earplug of FIG. 1 As a side cross-sectional view showing, it is a view for explaining the coupling relationship of the noise blocking earplugs, and FIG. 4 is a side view of the noise blocking earplugs of FIG. It is a drawing for explaining the operation of rotating with respect to and adjusting the angle.

As shown in these figures, the noise blocking earplugs 1 according to an embodiment of the present invention include a noise blocking unit 100 inside the ear canal, a support holder 300, an external noise blocking cover assembly 500, and , The external auditory meatus entrance noise blocker 700 is included.

First, the noise blocker inside the ear canal 100 serves to block noise introduced from the outside when at least a portion thereof is inserted into the user's ear canal, and includes a noise blocker body 110 inside the ear canal, and a noise blocker inside the ear canal. It includes a coupling pipe 130.

The noise blocker body 110 inside the ear canal according to the present embodiment may be made of soft polyurethane foam, which is a porous material in a spongy state with elasticity and resilience, synthetic latex, and memory foam, which is a special compressed sponge. there is. However, the scope of the present invention is not limited thereto and may be provided with other elastic materials in addition to the above-mentioned materials as needed.

According to the present embodiment, when the user's external auditory canal is inserted, the size of the portion to be inserted into the user's external auditory canal is reduced when the external auditory meatus body 110 with elasticity and restoring force is conveniently inserted into the user's external auditory canal. A certain portion of the noise blocker body 110 may be inserted. After the noise canceling body body 110 inside the ear canal is inserted to an appropriate depth, the noise canceling body body 110 inside the ear canal adheres to the outer wall of the user's ear canal by the self-restoring force of the noise canceling body body 110 inside the ear canal, thereby adhering to the outside of the ear canal. It can effectively block the inflow of noise.

In addition, the external ear canal noise canceling body body 110 according to the present embodiment is formed to correspond to the size of the ear canal of various users, and is detachable from the support holder 300 through the external ear canal noise canceling body coupling pipe 130. made possible Therefore, it is possible to combine the sound blocker body 110 in the ear canal that fits the size of the ear canal of various users with the support holder 300, and the sound blocker body 110 fits the size of the user's ear canal. Adhesion to the outer wall of the ear canal is improved, and sound insulation can be increased by efficiently blocking noise coming from the outside according to the improvement of adhesion.

As shown in detail in FIG. 3, the external auditory meatus noise canceling unit coupling pipe 130 is disposed in the recessed groove 111 formed in the ear canal noise canceling body body 110 to form a sound insulation body inside the external auditory meatus 110. It is a place coupled to, and the external noise blocker coupling protrusion 310 of the support holder 300, which will be described later, is coupled by fitting.

At this time, since the noise blocker coupling pipe 130 inside the ear canal has a relatively greater hardness than the noise blocker body 110 inside the ear canal, even if the process of inserting and removing for coupling is repeated, the noise blocker body inside the ear canal ( 110) to protect it from damage.

In other words, when the support holder 300 and the external auditory meatus body 110 are coupled, the noise canceling body body 110 inside the ear canal is stably attached to the support holder 300. It can be supported so as to be fixed, and when the noise blocker body 110 inside the ear canal is attached to and detached from the noise blocker coupling protrusion 310 inside the ear canal of the support holder 300, the noise blocker body 110 inside the ear canal due to external force There is an effect of increasing the use cycle of the noise blocker body 110 inside the ear canal by effectively preventing damage such as tearing.

Meanwhile, the support holder 300 is detachably coupled to the noise blocker 100 inside the ear canal and serves to support the noise blocker 100 inside the ear canal.

As shown in detail in FIGS. 2 and 3 , the support holder 300 includes an external noise canceling unit coupling protrusion 310 to which the external noise canceling unit 100 is coupled, and a noise canceling unit coupling protrusion inside the external auditory meatus. It includes an external noise blocking cover assembly coupling part 330 provided on one side of 310.

In addition, it is recessed toward the center at a position spaced apart by a predetermined distance from the end of the external auditory canal coupling protrusion 310, and the support holder coupling portion 730 of the external auditory meatus entrance noise canceling unit 700, which will be described later, is engaged. It further includes an external auditory meatus entrance noise blocker engaging groove 350.

As described above, the external auditory meatus noise canceling unit coupling protrusion 310 has a cylindrical shape so that it can be fitted into the external auditory meatus noise canceling unit coupling pipe 130 of the external auditory meatus 100.

The external noise blocking cover assembly coupling portion 330 is formed to have a larger diameter than the external noise blocking cover coupling protrusion 310 inside the ear canal, and the spherical coupling groove 331 is directed toward the inside of the external noise blocking cover assembly 500. ) is formed, and a spherical coupling protrusion 533 of the external noise blocking cover assembly 500 to be described later is fitted into the spherical coupling groove 331.

That is, since the spherical coupling protrusion 533 is fitted into the spherical coupling groove 331, relative rotation is possible, so as shown in FIG. is rotated with respect to the external noise blocking cover assembly 500 to enable angle adjustment.

The external auditory meatus inlet noise canceling unit hooking groove 350 can be engaged with the support holder coupling portion 730 of the external auditory meatus inlet noise canceling unit 700 to be described later, so that the external auditory meatus inlet noise canceling body 700 is firmly fixed. it does

On the other hand, the external noise blocking cover assembly 500 is detachably coupled to the opposite side of the support holder 300 to which the noise blocker 100 inside the ear canal is coupled, and serves to block noise coming from the outside. It includes a noise blocking plate 510, an angle adjustable coupling part 530, a cover cap 550, and a replaceable design sheet 570.

As shown in detail in FIG. 3, the external noise blocking plate 510 has a larger diameter than the noise blocking body 100 inside the ear canal and is spaced apart from the user's ear canal entrance by a predetermined distance and disposed on the side of the auricle, inflow from the outside It acts as a primary barrier to noise.

That is, noise introduced from the outside is first blocked by the external noise blocking plate 510 on the side of the user's auricle, and then noise introduced from the outside is blocked by the noise blocker 100 inside the ear canal inside the user's ear canal. Therefore, through an efficient and compact structure, the user's hearing can be protected by more completely blocking external noise by blocking noise coming from the outside at the same time from the inside of the user's ear canal as well as the user's auricle.

The angle-adjustable coupling portion 530 is coupled to the external noise blocking plate 510 and rotatably coupled to the external noise blocking cover assembly coupling portion 330, as shown in FIG. 4, the external noise barrier inside the ear canal ( 100) and the external noise blocking cover assembly 500 rotate with respect to the external noise blocking cover assembly 500 so that the angle can be adjusted.

As shown in detail in FIG. 3 , the angle-adjustable coupling part 530 includes a coupling pillar 531 provided standing upright in the central region of the external noise blocking plate 510, and an external noise blocking plate 510. is provided at the end of the coupling column 531 so as to be able to rotate relative to the support holder 300, and is fitted into the spherical coupling groove 331 formed in the external noise blocking cover assembly coupling portion 330 (533). ).

That is, when the angle adjustable coupling part 530 of the external noise blocking cover assembly 500 is coupled to the support holder 300, the spherical coupling protrusion 533 is fitted into the spherical coupling groove 331 in the coupling structure. combined by

Therefore, as shown in detail in FIG. 4, since the external noise blocking cover assembly 500 and the support holder 300 can rotate relative to each other, as a result, the noise blocker 100 inside the ear canal and the noise blocker 700 at the entrance of the ear canal ) rotates with respect to the external noise blocking cover assembly 500 so that the angle can be adjusted.

In Figure 4, a dotted line shows a fixed state adjusted by a predetermined angle in one direction, for example, downward, but according to the present invention, the coupling structure in which the spherical coupling protrusion 533 is fitted into the spherical coupling groove 331. By having , it is possible to adjust by a predetermined angle toward all directions of 360 degrees.

By adjusting the angle in this way, it is possible to set the direction in which the noise coming from the outside is primarily blocked by the external noise blocking plate 510. and protect the user's hearing.

The cover cap 550 is detachably coupled to the surface of the external noise blocking plate 510 facing the ear canal, and is made of a transparent material to fix the replaceable design sheet 570, while retaining the structure of the replaceable design sheet 570. It allows the content to be recognized from the outside.

The replaceable design sheet 570 is disposed between the external noise blocking plate 510 and the cover cap 550, and a plurality of replaceable design sheets 570 designed in various shapes and interchangeable may be provided.

As shown in detail in FIG. 2 , since the replaceable design sheet 570 can inform the outside that the user is wearing earplugs using a desired phrase, for example, a state in which the user of the earplugs is concentrating on studying. It can prevent others from disturbing the concentration state, and when the earplug user is working, it can play a role of informing others so that they can avoid collision with the user first.

In addition, it may serve to represent the user's affiliation by using logos of companies, schools, clubs, and various affiliated organizations as well as desired phrases.

On the other hand, the ear canal entrance noise blocker 700 is disposed between the external noise blocker 100 and the external noise blocker plate 510 and coupled to the support holder 300, and the ear canal noise blocker 100 is provided to the user. When at least a portion is inserted into the ear canal of the user, at least a portion is seated at the entrance of the user's ear canal to block noise coming from the outside.

The external auditory meatus entrance noise blocker 700 includes an ear canal entrance noise blocker body 710 and a support holder coupling part 730 .

The ear canal inlet noise blocker body 710 according to this embodiment may be provided with a tip made of flexible silicon or rubber. However, the scope of the present invention is not limited thereto, and may be provided with other flexible materials other than the above-mentioned materials, if necessary.

In addition, a through hole 711 through which the support holder 300 penetrates and is coupled is formed in the external auditory meatus entrance noise blocker body 710, so that the external auditory meatus entrance noise blocker body 710 is coupled to the support holder 300. Accordingly, when the noise blocker body 110 inside the ear canal is inserted into the user's ear canal, the noise blocker body 710 at the entrance of the ear canal is seated at the entrance of the user's ear canal.

That is, noise introduced from the outside is first blocked by the noise blocker body 710 at the entrance of the user's ear canal, and noise introduced from the outside by the noise blocker body 110 inside the ear canal is removed from the inside of the user's ear canal. Since it is additionally blocked, by blocking the noise coming from the outside at the same time from the inside of the user's ear canal and the entrance of the user's ear canal, the sound insulation of the noise coming from the outside is increased to more completely block external noise and improve the user's hearing. be able to protect

Unlike the sound blocker body 110 inside the ear canal, the noise canceling body body 710 at the entrance of the ear canal is made of a hollow hemispherical membrane, and this type of membrane is closely adhered to the entrance of the ear canal, so that external noise is generated. can be effectively blocked.

The support holder coupling portion 730 is coupled to the external auditory meatus entrance noise blocker body 710 forming the through groove 711, and is coupled to the external auditory meatus entrance noise blocker engaging groove 350 of the support holder 300. to be.

As shown in detail in FIG. 3 , the support holder coupling part 730 protrudes with a certain width from the sound block body 710 at the entrance of the external auditory meatus adjacent to the through hole 711 .

According to one embodiment of the present invention, the external auditory meatus inlet noise canceling body 700 is made of silicon, and the external auditory meatus inlet noise canceling body body 710 and the support holder coupling part 730 are integrally manufactured, but the present invention is here It is not limited and may be provided with different materials.

In this way, according to the present embodiment, the noise introduced from the outside is primarily blocked by the external noise blocking plate 510 on the side of the user's auricle, and the external noise is blocked by the noise blocker 700 at the entrance of the user's ear canal. Secondarily blocks noise coming from the ear canal, and thirdly blocks noise flowing from the outside by the noise blocker 100 inside the ear canal inside the user's ear canal, so through an efficient and compact structure, not only the inside of the user's ear canal By simultaneously blocking noise introduced from the outside at the entrance of the user's ear canal and the side of the auricle, it is possible to more completely block external noise to protect the user's hearing.

In addition, when the angle-adjustable coupling part 530 of the external noise blocking cover assembly 500 is coupled to the support holder 300, the spherical coupling protrusion 533 is fitted into the spherical coupling groove 331 in the coupling structure. Since the external noise blocking cover assembly 500 and the support holder 300 can be rotated relative to each other, as a result, the noise blocking member 100 inside the ear canal and the noise blocking member 700 at the entrance to the external auditory meatus are connected to the outside noise blocking cover assembly. By rotating with respect to (500), angle adjustment is possible.

Therefore, since the external noise blocking plate 510 can set the direction to primarily block noise coming from the outside, it can be individually adjusted according to the shape of the auricle of each user to more perfectly block external noise and hearing can be protected.

In addition, the noise canceling unit 100 inside the ear canal and the noise blocking unit 700 at the entrance of the ear canal are provided in a structure that can be individually separated from the support holder 300 and are individually detachably coupled, so that the noise blocking unit 100 inside the ear canal and When partial contamination or partial damage occurs to at least one component of the external auditory meatus entrance noise blocker 700, partial replacement of only the partially contaminated or partially damaged component is possible.

Therefore, in the noise blocking earplugs according to the present embodiment, the use cycle of the noise blocking earplugs can be increased by selectively replacing only partially contaminated and partially damaged parts, and the ease of post-management can be increased.

As such, the present invention is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, it should be said that such modifications or variations fall within the scope of the claims of the present invention.

100: noise blocking group inside the ear canal
110: noise blocker body inside the ear canal
130: noise blocker coupling pipe inside the ear canal
300: support holder
310: external auditory canal inner noise blocker coupling protrusion
330: external noise blocking cover assembly coupling part
350: ear canal entrance noise barrier engaging coupling groove
500: external noise blocking cover assembly 510: external noise blocking plate
530: angle adjustable joint 550: cover cap
570: Replaceable design sheet 700: Noise barrier at the entrance of the ear canal
710: ear canal entrance noise blocker body 730: support holder coupling part

Claims (8)

a noise blocker inside the ear canal that blocks noise introduced from the outside when at least a portion thereof is inserted into the user's ear canal;
a support holder detachably coupled to the noise blocker inside the ear canal to support the noise blocker inside the ear canal; and
It is detachably coupled to the opposite side of the support holder to the opposite side of the part to which the noise blocker inside the ear canal is coupled, has a larger diameter than the noise blocker inside the ear canal, and is spaced apart from the entrance of the user's ear canal by a predetermined distance and disposed on the side of the auricle. Including an external noise blocking cover assembly having an external noise blocking plate to block noise coming from the outside,
The support holder,
a noise blocker coupling protrusion inside the ear canal to which the noise blocker inside the ear canal is coupled; and
Including an external noise blocking cover assembly coupling portion provided on one side of the external noise blocking unit coupling protrusion inside the ear canal,
The external noise blocking cover assembly,
Further comprising an angle-adjustable coupling portion coupled to the external noise blocking plate and rotatably coupled to the external noise blocking cover assembly coupling portion,
The angle-adjustable coupling part,
a coupling pillar provided upright in a central region of the external noise blocking plate; and
Characterized in that the external noise blocking plate includes a spherical coupling protrusion provided at an end of the coupling column and fitted into a spherical coupling groove formed in the external noise blocking cover assembly coupling portion so that the external noise blocking plate can rotate relative to the support holder. Noise blocking earplugs. delete delete According to claim 1,
The external noise blocking cover assembly,
a cover cap made of a transparent material detachably coupled to a surface of the external noise blocking plate facing the ear canal; and
Disposed between the external noise blocking plate and the cover cap, the noise blocking earplugs further comprising a plurality of interchangeable design sheets designed in various shapes and interchangeable. According to claim 1,
It is disposed between the noise blocking member inside the ear canal and the external noise blocking plate and coupled to the support holder, and when at least a portion of the noise blocking member inside the ear canal is inserted into the user's ear canal, at least a portion of the noise blocking member is seated at the entrance of the user's ear canal. Noise blocking earplugs further comprising a noise blocker at the entrance of the ear canal to block noise coming from the outside. According to claim 5,
The external auditory meatus entrance noise blocker,
an external auditory meatus entrance noise blocker body in which a through-hole through which the support holder passes and is coupled is formed; and
The noise blocking earplug comprising a support holder coupling portion coupled to the external auditory meatus entrance noise blocker body forming the through hole and coupled to the support holder. According to claim 6,
The support holder coupling part,
It is provided to protrude with a certain width from the sound barrier body at the entrance of the ear canal adjacent to the through-hole,
The support holder,
The external auditory canal entrance noise canceling unit engaging groove is formed recessed toward the center at a position spaced apart from the end of the noise canceling unit coupling protrusion inside the ear canal by a predetermined distance, and the support holder coupling part of the external auditory meatus entrance noise canceling unit is coupled. Noise blocking earplugs comprising: According to claim 1,
The noise blocker inside the ear canal,
a noise blocker body inside the ear canal; and
It is disposed in a recessed groove formed in the sound blocker body inside the ear canal, coupled to the sound blocker body inside the ear canal, and has a relatively greater hardness than the noise blocker body inside the ear canal, and the sound inside the ear canal of the support holder. A noise blocking earplug comprising a noise blocking member coupling tube inside the ear canal to which the blocking body coupling protrusion is coupled.

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