Sound insulation earplug

Abstract

The utility model discloses a sound insulation earplug, relates to the sound insulation technical field, the sound insulation earplug comprises a flexible main body bag, an earplug handle, a valve assembly and an internal filler, the flexible main body bag is used for inserting into the ear canal of the human body; the earplug handle is mounted at the upper end of the flexible main body bag; one end of the valve assembly extends into the flexible main body bag, and the other end of the valve assembly is mounted in the earplug handle; the internal filler is filled in the flexible main body bag; the position, corresponding to the valve assembly, of the earplug handle is provided with a through hole part, and the valve assembly is used for blocking the through hole part so that the internal filler in the flexible main body bag can be sealed inside. The technical scheme provided by the utility model is used for improving the sound insulation effect of the earplug.

Description

TECHNICAL FIELD

[0001] The utility model relates to noise reduction technical field, especially a sound insulation earplug. BACKGROUND

[0002] Earplug is a kind of personal protective equipment to protect hearing and prevent people from excessive stimulation of noise.In the workplace, earplug is used to protect workers and reduce hearing loss caused by excessive noise; in daily life, earplug is also widely used in quiet places such as sleeping and studying.

[0003] The earplug on the market is usually foam earplug, which is made of PU or PVC material. When wearing, it is first rubbed into a fine powder and then inserted into the ear canal to expand. The sound insulation effect of this type of earplug is not good, so a new type of sound insulation earplug with good sound insulation effect is designed. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a sound insulation earplug to improve the sound insulation effect of earplug.

[0005] To achieve the above purpose, the utility model provides a sound insulation earplug, which comprises:

[0006] Flexible main body bag, the flexible main body bag is used to be inserted into the ear canal of human body;

[0007] Earplug handle, the earplug handle is installed on the upper end of the flexible main body bag;

[0008] Valve assembly, one end of the valve assembly extends into the flexible main body bag, and the other end is installed in the earplug handle;

[0009] Internal filler, the internal filler is filled in the flexible main body bag;

[0010] Wherein, the earplug handle has a through hole part at the position corresponding to the valve assembly, and the valve assembly is used to block the through hole part to close the internal filler in the flexible main body bag.

[0011] In an embodiment, the valve assembly comprises a valve body, a plug and an elastic piece, the valve body has a sliding rail groove inside, the plug is arranged in the sliding rail groove, and the elastic piece is arranged between the plug and the bottom wall of the sliding rail groove. The elastic piece is used to press the plug on the through hole part to block the through hole part.

[0012] In an embodiment, the valve assembly further comprises a noise reduction element, and the end of the valve body inserted into the flexible main body bag has a mounting cavity, and the noise reduction element is mounted in the mounting cavity.

[0013] In an embodiment, the diameter of the sliding rail groove is greater than the inner diameter of the through hole part, the plug is cylindrical in shape, the upper end of the plug has a chamfered portion that blocks the through hole part, and a gap is present between the plug and the sliding rail groove; at least one opening is further provided on the sidewall of the sliding rail groove, and the opening is in communication with the inside of the flexible body capsule.

[0014] In an embodiment, a cover plate is further mounted on the earplug handle.

[0015] In an embodiment, the internal filler is an inert gas or air.

[0016] In an embodiment, the internal filler is a liquid material.

[0017] In an embodiment, the internal filler is an acoustic absorption material.

[0018] In an embodiment, the noise reduction element is a resonance receiver.

[0019] In an embodiment, the noise reduction element is a filter.

[0020] The soundproof earplug of the technical scheme of the utility model adopts the mode of filling the flexible body capsule with an internal filler, thereby improving the soundproof effect of the earplug. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative labor.

[0022] Fig. 1 The structure schematic view of one embodiment of the noise reduction earplug provided by the utility model is shown in the figure.

[0023] Fig. 2 The exploded structure schematic view of one embodiment of the noise reduction earplug provided by the utility model is shown in the figure.

[0024] Fig. 3 The cross-sectional structure schematic view of one embodiment of the noise reduction earplug provided by the utility model is shown in the figure.

[0025] Explanation of reference numerals:

[0026] 10, flexible body sac; 11, opening; 20, earplug handle; 21, through-hole part; 30, valve assembly; 31, valve body; 311, sliding rail groove; 312, opening; 32, plug; 33, elastic member; 34, noise reduction element; 40, internal filler; 50, cover plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0029] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel solutions are included, for example, "A and / or B" includes A solution, or B solution, or A and B solutions are satisfied at the same time. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0030] Please refer to Figs. 1 to 3 As shown in FIG. 1, an embodiment of the present application provides a soundproof earplug, which comprises a flexible body sac 10, an earplug handle 20, a valve assembly 30 and an internal filler 40. The flexible body sac 10 is used to be inserted into the ear canal of the human body to block the ear of the human body. The earplug handle 20 is installed at the upper end of the flexible body sac 10. One end of the valve assembly 30 extends into the flexible body sac 10, and the other end is installed in the earplug handle 20. The internal filler 40 is filled in the flexible body sac 10. The earplug handle 20 has a through-hole part 21 at the position corresponding to the valve assembly 30, and the valve assembly 30 is used to block the through-hole part 21 to close the internal filler 40 of the flexible body sac 10 inside.

[0031] Specifically, the soundproof earplug comprises an earplug handle 20, a flexible main body bag 10, a valve assembly 30 and an internal filler 40. The earplug handle 20 is arranged above the flexible main body bag 10, the flexible main body bag 10 has a containing cavity containing the internal filler 40 inside, and the internal filler 40 is filled in the flexible main body bag 10. The internal filler 40 is a non-shaped substance, and the flexible main body bag 10 can shape the internal filler 40, and then deform according to the shape of the ear canal after being inserted into the ear canal of the human body to fit the ear canal of the human body. The valve assembly 30 is arranged inside the flexible main body bag 10 and the earplug handle 20. The flexible main body bag 10 is provided with an opening 11 at one end close to the earplug handle 20, the valve assembly 30 passes through the opening 11 and is fixedly installed at the perforated position. After the fixation is completed, one end of the valve assembly 30 extends into the flexible main body bag 10, and the other end of the valve assembly 30 extends into the earplug handle 20. The earplug handle 20 has a through hole part 21 corresponding to the position of the valve assembly 30, and the valve assembly 30 is used to block the through hole part 21 to seal the internal filler 40 in the flexible main body bag 10. When the earplug of the present application is used, the flexible main body bag 10 is inserted into the ear canal of the human body, and after the valve assembly 30 seals the through hole part 21 of the earplug handle 20, the external sound is transmitted to the flexible main body bag 10, the flexible main body bag 10 vibrates with sound waves, and the vibration is transmitted to the internal filler 40 inside the flexible main body bag 10. The internal filler 40 reduces the vibration of the noise, has good soundproof effect, and can provide a quiet environment for the user.

[0032] In the embodiment, the flexible main body bag 10 is made of silica gel material, and the silica gel material has good flexibility and strong plasticity, so that the user has a strong sense of comfort after being inserted into the ear canal of the human body, and the user experience is improved.

[0033] In an optional embodiment, the valve assembly 30 comprises a valve body 31, a plug 32 and an elastic member 33. The valve body 31 has a sliding rail groove 311 inside, the plug 32 is arranged in the sliding rail groove 311, and the elastic member 33 is arranged between the plug 32 and the bottom wall of the sliding rail groove 311. The elastic member 33 is used to press the plug 32 on the through hole part 21 to block the through hole part 21.

[0034] Specifically, the valve assembly 30 comprises a valve body 31, a plug 32 and a spring 33. The valve body 31 has a sliding groove 311 inside, which is a cylindrical recess. The plug 32 is located in the sliding groove 311 and can slide under the action of an external force. The plug 32 is opposite to the through hole part 21 and can move up and down relative to the through hole part 21. The spring 33 is a spring, one end of which abuts against the bottom wall of the sliding groove 311, and the other end of which abuts against the lower end of the plug 32. Therefore, under the action of no external force, the spring can press the plug 32 against the through hole part 21 of the earplug handle 20 to block the through hole part 21. In the normal state, the through hole part is always in a closed state.

[0035] In the embodiment, the diameter of the sliding groove 311 is greater than the inner diameter of the through hole part 21, the plug 32 is cylindrical, the upper end of the plug 32 has a chamfered part, the chamfered part blocks the through hole part 21, and the plug 32 has a gap with the sliding groove 311. At least one opening 312 is further provided on the side wall of the sliding groove 311, and the opening 312 is in communication with the inside of the flexible body bag 10. The valve assembly 30 further comprises a noise reduction element 34, and the valve body 31 is inserted into the end of the flexible body bag 10 and has a mounting cavity, and the noise reduction element 34 is mounted in the mounting cavity. The noise reduction element 34 can directly contact the internal filler 40 to absorb the sound waves of the internal filler 40. A cover plate 50 is further mounted on the earplug handle 20, and a recess is provided on the earplug handle 20, and the cover plate 50 is mounted in the recess. The cover plate 50 blocks the through hole part 21 to avoid interference from the outside.

[0036] Specifically, the inner diameter of the through hole part 21 is smaller than the diameter of the sliding groove 311, and the diameter of the plug 32 is greater than the inner diameter of the through hole part 21, so that the plug 32 can completely block the through hole part 21. The diameter of the sliding groove 311 is slightly greater than the diameter of the plug 32, so that the plug 32 has a small gap with the sliding groove 311. The plug 32 has a chamfered part at one end thereof facing the through hole part 21, and the chamfered part of the plug 32 blocks the through hole part 21 to ensure that the plug 32 can completely close the through hole part 21. At least one opening 312 is further provided on the side wall of the sliding groove 311, and the opening 312 is in communication with the inside of the flexible body bag 10. A cover plate 50 is further provided on the earplug handle 20 to block the through hole part 21. The cover plate 50 is used to prevent external objects from pressing the plug 32, so that the outside is in communication with the inside of the flexible body bag 10, thereby causing the internal filler 40 to flow out of the outside. In some embodiments, the through hole part 21 is further provided with a chamfer matched with the plug 32 to further ensure that the plug 32 can completely block the through hole part 21.

[0037] The internal filler 40 can be inert gas or air. The inert gas can be helium, argon, etc. During production, the inert gas can be delivered by high pressure, the input port is inserted into the through hole part 21, the pressure formed by the high pressure gas can make the plug 32 of the valve assembly 30 move downward, so as to compress the spring, the gas can enter the opening 312 on the side wall of the sliding rail groove 311 through the gap between the plug 32 and the sliding rail groove 311, and then enter the inside of the flexible main body bag 10 through the opening 312, so as to form the internal filler 40 in the flexible main body bag 10, when the filler reaches a certain volume, stop the high pressure gas delivery, the plug 32 is abutted to the through hole part 21 on the earplug handle 20 under the elastic force of the spring, so as to close the through hole part 21.

[0038] In some embodiments, the internal filler 40 can be sound-absorbing material, which can also reduce the shock of noise, and the effect is better under the action of the internal noise reduction element 34. The noise reduction element 34 can be a resonance absorber, which can also absorb sound waves of different frequencies, so that the sound waves from the outside can be well reduced and absorbed, and a good sound insulation effect is achieved. In some embodiments, the noise reduction element 34 is a filter, which can filter and absorb sound waves of different frequencies.

[0039] In an optional embodiment, the sound-absorbing material can be mineral wool or glass fiber.

[0040] In an optional embodiment, the internal filler 40 can also be a liquid material.

[0041] The above only describes the exemplary embodiments of the present application, and does not limit the patent scope of the present application, any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A sound-isolating earplug, comprising: The earplug comprises: a flexible main body bag for insertion into the ear canal of a human body; an earplug handle mounted on the upper end of the flexible main body bag; a valve assembly with one end extending into the flexible main body bag and the other end mounted in the earplug handle; an internal filler filled in the flexible main body bag; wherein the earplug handle has a through hole part at the position corresponding to the valve assembly, and the valve assembly is used to block the through hole part to seal the internal filler in the flexible main body bag.

2. The sound isolating earplug of claim 1, wherein The valve assembly comprises a valve body, a plug and an elastic member, the valve body has a sliding rail groove inside, the plug is arranged in the sliding rail groove, and the elastic member is arranged between the plug and the bottom wall of the sliding rail groove, and the elastic member is used to press the plug on the through hole part to block the through hole part.

3. The sound isolating earplug of claim 2, wherein The diameter of the sliding rail groove is larger than the inner diameter of the through hole part, the plug is in a cylindrical shape, the upper end of the plug has a chamfered part to block the through hole part, and there is a gap between the plug and the sliding rail groove; at least one opening is further arranged on the side wall of the sliding rail groove, and the opening is in communication with the inside of the flexible main body bag.

4. The sound isolating earplug of claim 2, wherein The valve assembly further comprises a noise reduction element, and the end of the valve body inserted into the flexible main body bag has a mounting cavity, and the noise reduction element is mounted in the mounting cavity.

5. The sound isolating earplug of claim 4, wherein A cover plate is further mounted on the earplug handle, and the cover plate is used to block the through hole part.

6. The sound isolating earplug of claim 1, wherein The internal filler is inert gas or air.

7. The sound isolating earplug of claim 1, wherein The internal filler is liquid material.

8. The sound isolating earplug of claim 1, wherein The internal filler is sound-absorbing material.

9. The sound isolating earplug of claim 4, wherein, The noise reduction element is a resonance receiver.

10. The sound isolating earplug of claim 4, wherein The noise reduction element is a filter.

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