CN114257939A

CN114257939A - Hearing aid convenient to adjust and wear

Info

Publication number: CN114257939A
Application number: CN202111351234.7A
Authority: CN
Inventors: 段铁春; 李玮
Original assignee: Xuzhou Hualintang Medical Technology Co ltd
Current assignee: Xuzhou Hualintang Medical Technology Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-03-29

Abstract

The application discloses audiphone convenient to adjust and wear relates to audiphone technical field, and including, casing, connection ear hook and public address part wherein, audiphone still includes drive assembly, auxiliary device and block subassembly, the casing on seted up the opening, the host computer casing on be equipped with a pair of lug, rotate between a pair of lug and be connected with the movable pulley, the casing in be equipped with fixed rotating shaft, fixed rotating shaft on rotate and be connected with connecting sleeve, the adjusting pulley with the movable pulley mesh mutually. Through having adopted the setting to corresponding mechanism on the formula audiphone of ear-back, solved among the prior art because current formula audiphone of ear-back ear hook is fixed shape and can not adjust, the inconvenient problem that influences the comfort level of wearing has realized the regulation of formula audiphone of ear-back ear hook, is suitable for most users' ear profile, reduces strain and the audiphone that the ear was worn and drops.

Description

Hearing aid convenient to adjust and wear

Technical Field

The invention relates to the technical field of hearing aids, in particular to a hearing aid convenient to adjust and wear.

Background

The hearing aid is a subminiature loudspeaker, amplifies the sound which cannot be heard by a patient with hearing impairment originally according to the requirement of the patient, transmits the sound to the auditory center of the brain to hear the sound by utilizing the residual hearing of the patient, receives a sound signal sent by the outside by the hearing aid, converts the sound signal into an electric signal, amplifies the electric signal and converts the electric signal into a sound signal, thereby achieving the effect of amplifying the sound.

The ear-carried hearing aid is suitable for various hearing loss persons, and is mainly composed of sound transmitter, amplifier, battery, volume regulator and receiver, its component structure is mounted in a small box in the form of long hook, and is hung behind the ear by means of a plastic ear hook bent into a semicircular form, and its shell can be covered by means of skin or hair colour, and the amplified sound can be transferred into the sound hole of ear mould by means of ear hook through a plastic tube.

Ear back of the body formula audiphone mainly relies on the plastics ear hook to hang behind the ear, because current ear back of the body formula audiphone ear hook is fixed shape and can not adjust, the radian of ear hook and most users' ear profile mismatch, it is fixed with the unable better contact of ear to make ear hook, the condition that drops appears after wearing easily, cause the damage of audiphone, and simultaneously, the mismatch of ear hook and ear profile can make the person of wearing feel uncomfortable, still cause the strain to the ear easily, aggravate the damage of ear.

Disclosure of Invention

The embodiment of the application provides a audiphone convenient to adjust and wear, and the ear hook of having solved among the prior art ear-carried audiphone can not adjust crooked to inconvenient user wears and influences the problem of comfort level, has realized the regulation of ear-carried audiphone ear hook, makes ear-carried audiphone be suitable for most users 'ear profile, has slowed down the strain of user's ear when wearing and the difficult problem that drops after the audiphone wears.

The hearing aid convenient to adjust to wear comprises a shell 100, a connecting ear hook 110 and a sound amplifying part 120, and further comprises a transmission assembly 200, an auxiliary device 300 and a clamping assembly 400.

The casing 100 is provided with an opening, the main machine casing 101 is provided with a pair of convex blocks, and a sliding wheel 210 is rotatably connected between the pair of convex blocks.

The casing 100 is internally provided with a fixed rotating shaft 220, the fixed rotating shaft 220 is rotatably connected with a connecting sleeve 230, the adjusting pulley 240 is engaged with the sliding wheel 210, and the outer wall of the connecting sleeve 230 is provided with a connecting piece 250.

A fixed steel rope 270 is inserted into the connecting ear hook 110, a movable cavity 280 is cut at one side of the fixed steel rope 270, a traction member 260 is arranged in the movable cavity 208, and the traction member 260 is connected between the fixed steel rope 270 and the connecting member 250.

The auxiliary device 300 comprises: and the sliding rod 310, the sliding rod 310 is slidably connected in the casing 100.

Further, a gear rack 320 is disposed on one side of the sliding rod 310 close to the sliding wheel 210, and the gear rack 320 is engaged with the sliding wheel 210, so as to facilitate transmission between the gear rack 320 and the sliding wheel 210.

The bottom of the sliding rod 310 is connected with an extrusion soft plate 330 which plays a role in protecting the air bag body 340, and the surface of the air bag body is not easy to puncture during extrusion.

Further, an air bag body 340 is arranged in the housing 100, and a connecting air pipe 350 is connected to one side of the air bag body 340.

A plurality of air holes 360 are formed on one side of the casing 100 close to the connecting ear hook 110, and the air holes 360 are uniformly distributed on one side of the casing 100.

Furthermore, a circulation cavity 380 is formed in one side of the casing 100, the circulation cavity 380 is communicated with the plurality of air holes 360, a layer of rubber film 370 is arranged in the circulation cavity 380, and the rubber film 370 is attached to one side of the plurality of air holes 360 and used for improving the comfort of the host casing after being worn.

Further, sealing members are connected between the connecting air pipe 350 and the housing 100 and the air bag body 340, so that the air communication tightness between the connecting piece 350 and the communication cavity 380 is improved.

Further, the engaging assembly 400 includes a first fixed rotating shaft 410, a pawl 412 is rotatably connected to the first fixed rotating shaft 410, a ratchet wheel 411 is disposed on one side of the pawl 412, and the ratchet wheel 411 is connected to the engaging member 230.

Further, a stopper is disposed at one side of the first fixed rotating shaft 410 for limiting and fixing the pawl 412.

Further, a bevel sliding rod 413 is connected to the pawl 412.

Further, a supporting slide rod 420 is arranged in the casing 100, a slide sleeve 421 is connected to the supporting slide rod 420 in a sliding manner, a slope block 423 is arranged on the slide sleeve 421, and the slope block 423 is matched with the slope of the slope slide rod 413.

Further, a movable button 424 is disposed at one end of the sliding sleeve 421 located outside the casing 100, the movable button 424 is connected to the main casing 110, and a partition 430 is disposed in the casing 100.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

adjust the crooked degree of ear hook through having adopted the mode of addding pulley regulation on the formula audiphone of the back of the ear, with adaptation different wearers 'ear profile, and extrude the gasbag when making the adjusting pulley through the transmission of slide bar, utilize gasbag extruded gas to make the film swell, the effectual ear hook of having solved among the prior art formula audiphone of the back of the ear can not adjust crooked, thereby inconvenient user wears and influences the problem of comfort level, the regulation of formula audiphone of the back of the ear hook has been realized, make formula audiphone of the back of the ear be suitable for most users' ear profile, strain and the audiphone of user when having slowed down and worn the difficult problem that the ear dropped after difficult ear of audiphone wears.

Drawings

Fig. 1 is a schematic view of a hearing aid for fitting adjustment according to the present invention;

fig. 2 is a schematic view of another perspective configuration of a hearing aid for fitting the hearing aid according to the present invention;

fig. 3 is a cross-sectional view of a main housing portion of a hearing aid for fitting the hearing aid according to the invention;

FIG. 4 is a schematic view of the structure at A in FIG. 3;

FIG. 5 is a schematic view of the structure at B in FIG. 3;

fig. 6 is a schematic view of a portion of the transmission assembly of a hearing aid for fitting according to the invention;

FIG. 7 is a cross-sectional view of a portion of the present invention for adjusting the position of a worn hearing aid at the ear hook;

FIG. 8 is a schematic view of the structure of FIG. 7 at C;

fig. 9 is a sectional view of a portion of the structure of an attachment housing for a hearing aid for fitting according to the present invention;

fig. 10 is a schematic view of a portion of a hearing aid support assembly for fitting a hearing aid according to the present invention.

In the figure:

a housing 100, a connecting ear hook 110, a sound amplification part 120;

the device comprises a transmission assembly 200, a sliding wheel 210, a fixed rotating shaft 220, a connecting sleeve 230, an adjusting pulley 240, a connecting piece 250, a traction piece 260, a fixed steel rope 270, a movable cavity 280 and a positioning block 290;

the auxiliary device 300, the sliding rod 310, the gear rack 320, the extrusion soft plate 330, the air bag body 340, the connecting air pipe 350, the air hole 360, the rubber film 370 and the circulation cavity 380;

the clamping assembly 400, the first fixed rotating shaft 410, the ratchet 411, the pawl 412, the inclined plane sliding rod 413, the supporting sliding rod 420, the sliding sleeve 421, the spring 422, the inclined plane block 423, the movable button 424 and the partition 430;

the

support members

500, 510 are coupled to the case, 511 inner slide, 520 first link, 530 second link, 540 disc slide, 550 surface suction cup, 560 outer slide.

Detailed Description

In order to facilitate an understanding of the present invention, the present application will now be described more fully with reference to the accompanying drawings; the preferred embodiments of the present invention are illustrated in the accompanying drawings, but the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete.

It is noted that the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-8, the hearing aid for fitting includes a housing 100, a transmission assembly 200, an auxiliary device 300, and a fastening assembly 400; this application is through adjusting the crooked degree of connecting ear hook 110 on the ear back formula hearing aid among the prior art mode that pulley 210 rotated to adapt to different wearers 'ear profile, and utilize the transmission of pulley 210 and slide bar 310 to extrude gasbag body 340, utilize the gas that gasbag body 340 extruded to make rubber membrane 370 swell, improve the comfort level when wearing, and the connection state that combines ratchet 411 and pawl 412 again carries out the restriction to pulley 210, thereby fixed connection ear hook 110's crooked degree.

Example one

As shown in fig. 1, the hearing aid for fitting adjustment of wearing of the present application includes a housing 100, an attaching ear hook 110, and a sound amplification part 120.

The connecting ear hook 110 is fixedly connected between the shell 100 and the sound amplifying part 120 and used for sound conduction and fixation, wherein the connecting ear hook 110 is made of rubber materials, so that the connecting ear hook 110 can be bent in a small range and is convenient to adjust, meanwhile, the comfort level of the connection of the connecting ear hook 110 and the ear of a wearer is improved, and the ear of the wearer is not easy to have ache or indentation; the sound amplification part 120 is used for connecting with the external auditory canal of the wearer for sound transmission.

As shown in fig. 3-8, a transmission assembly 200 is disposed in the housing 100, and the rotation assembly 200 includes: the sliding component adjusts the connecting ear hook 110 by using the transmission function of the pulley;

the traction assembly is used for connecting the sliding assembly and the connecting ear hook and plays a role in traction on the connecting ear hook through the rotation of the sliding assembly.

The sliding assembly includes a sliding wheel 210, a fixed rotating shaft 220, an engaging sleeve 230 and an adjusting pulley 240.

The shell 100 is provided with an opening, the sliding wheel 210 is rotatably connected to the outer side of the shell 100, and the outer ring of the sliding wheel 210 is provided with a plurality of raised strips which are uniformly distributed, so that a wearer can conveniently adjust the raised strips and can achieve the effect of meshing transmission.

Casing 100 in be equipped with fixed pivot 220, fixed pivot 220 on rotate and be connected with connecting sleeve 230 for connect different pulleys, play the effect of connecting transmission, connecting sleeve 230 on fixedly connected with adjust pulley 240, adjust pulley 240 and movable pulley 210 mesh mutually, mainly used is to the transmission of movable pulley 210.

The traction assembly comprises a connecting piece 250, a traction piece 260, a fixed steel rope 270, a movable cavity 280 and a positioning block 290;

the connecting piece 250 is connected to the outer wall of the connecting sleeve 230, when the sliding wheel 210 rotates, the connecting sleeve 230 rotates, so that the connecting piece 250 on the connecting sleeve 230 rotates, the fixed steel cable 270 is arranged in the connecting ear hook 110, the connecting ear hook 110 can support the fixed steel cable 270, the shape of the bent connecting ear hook 110 can be adjusted by bending the fixed steel cable 270, the movable cavity 280 is drilled in the connecting ear hook 110, the movable cavity 208 is internally provided with the traction piece 260, the traction piece 260 is connected between the connecting piece 250 and the fixed steel cable 270, the traction piece 260 is pulled towards one end by the rotation of the connecting piece 250 and is pulled by the traction piece 260, and the fixed steel cable 270 bends towards one side, so that the bending amplitude of the connecting ear hook 110 is changed.

The gear adjustment mode is adopted, the stretching degree of the connecting ear hook 110 is related to the density degree of the racks of the sliding wheel 210 and the adjusting pulley 240, the connecting ear hook 110 can slowly and accurately move through the density of the racks, and the phenomenon that the connecting ear hook 110 is extruded to the ear part due to the fact that the wearer rotates too hard is avoided.

Furthermore, a plurality of positioning blocks 290 are arranged in the housing 100 and used for fixing the traction member 260, so that the movement of the traction member 260 is facilitated, the effect of limiting the deviation of the traction member 260 is achieved, and the traction member 260 is not easy to damage parts in the housing 100.

In actual use of the hearing aid according to the embodiment of the present application, as shown in figures 1-7,

1. before wearing, the sliding wheel 210 is rotated, the engaging sleeve 230 is rotated through the meshing transmission of the adjusting pulley 240 and the sliding wheel 210, the rotation of the engaging sleeve 230 drives the traction piece 260 wound on the engaging piece 250 to be loosened, the tensioned state 270 is loosened, the fixed steel rope 270 is restored to the original state without being pulled by the traction piece 260, and the connecting ear hook 110 is opened.

2. Wearing the connection ear hook 110 in the open state on the ear, adjusting the position of the hearing aid and then reversely rotating the adjusting pulley, the adjusting pulley 240 drives the connecting sleeve 230 to turn, so that the traction piece 260 is wound on the connecting sleeve 230, meanwhile, the fixing steel rope 270 is reversely pulled, and one end of the connection ear hook 110, which is far away from the shell 100, is retracted inwards, and then attached to the ear of the wearer.

The technical scheme in the embodiment of the application at least has the following technical effects or advantages:

the problem of among the prior art behind the ear formula audiphone ear hook because of can not adjusting, the radian that leads to the audiphone ear hook mismatches the phenomenon that drops easily with the person's of wearing ear profile, because the ear hook mismatches with the ear and cause the strain easily to the ear and influence the condition that the comfort level is not good, realized the regulation of behind the ear formula audiphone ear hook, the regulation radian of ear hook can match with the person's of wearing ear profile, convenient to use person wears, the person of facilitating the use operates the technological effect who improves the comfort level.

Example two

In the actual use process, the adjustment of the connecting ear hook 110 has certain extrusion to the ear contour of the wearer, so that the ear of the wearer feels uncomfortable, and the ear is easily damaged by long-time extrusion.

In view of the above problems, the present embodiment adds an auxiliary device 300 to the above embodiments, so that the sliding wheel 210 can be inflated and protected when the connecting ear hook 110 is adjusted.

As shown in fig. 3 to 5, the auxiliary device 300 includes: the sliding rod 310 is slidably connected in the housing 100, a gear bar 320 is arranged on one side of the sliding rod 310 close to the sliding wheel 210, the gear bar 320 is engaged with the sliding wheel 210, and the bottom of the sliding rod 310 is connected with an extrusion soft plate 330.

Casing 100 in be equipped with the gasbag body 340, gasbag body 340 one side is connected with connects trachea 350, casing 100 be close to and seted up a plurality of gas pockets 360 on one side of connecting ear hook 110, a plurality of gas pockets 360 evenly distributed in one side of casing 100.

Preferably, the soft extrusion plate 330 is made of soft rubber, so that the surface of the air bag body 340 is not easily punctured by the extrusion of the air bag body 340 during the moving process of the sliding rod 310, and the service life of the auxiliary device 300 is prolonged to a certain extent.

A circulation cavity 380 is formed in one side of the casing 100, the circulation cavity 380 is communicated with the plurality of air holes 360, a layer of rubber film 370 is arranged in the circulation cavity 380, and the rubber film 370 is attached to one side of the plurality of air holes 360.

Preferably, sealing elements are connected between the connecting air pipe 350 and the housing 100 and between the connecting air pipe and the air bag body 340, so that the air circulation tightness between the connecting element 350 and the circulation cavity 380 is improved, and the air flow extruded by the air bag body 340 is not easy to leak at the connection part.

In practical use, as shown in fig. 3-5, when a user rotates the sliding wheel 210 to adjust and tighten the connecting ear hook 110 inward, the sliding wheel 210 drives the sliding rod 310 to slide downward through engagement with the gear rack 320, and simultaneously the pressing soft plate 330 presses the air bag body 340, air in the air bag body 340 is input into the circulation cavity 380 through the connecting air pipe 350, and the rubber membrane 370 bulges at the plurality of air holes 360 through pressing, so that the housing 100 and the ear of the wearer are in contact with each other in a certain area.

Meanwhile, the technical scheme in the embodiment of the application has the following technical effects or characteristics:

the sliding rod 310 extrudes the air bag body 340 through the rotation of the sliding wheel 210, so that the air in the air bag body 340 flows into the circulation cavity 380, the rubber film 370 bulges at the air hole 360, and part of the shell 100 and the ear of a wearer is contacted by the rubber film 370, so that the wearing comfort of the user is improved, meanwhile, the friction between the shell 100 and the ear of the wearer is increased, and the ear-carried hearing aid plays an auxiliary role in fixing the ear.

EXAMPLE III

In consideration of the fact that the gas in the air bag body 340 has a certain backflow condition due to the extrusion of the air bag body 340 under the conditions that the rebound is performed under the reaction force of the fixing rope 270 and the traction member 260 cannot be always in a tight state in the actual use process, the connecting ear hook 110 cannot be effectively adjusted, and meanwhile, the sliding wheel 210 cannot be fixed when being rotated to a certain position when the sliding wheel 210 is rotated.

In view of the above problems, the present embodiment adds the engaging assembly 400 to the above embodiments, so as to engage and fix the transmission assembly 200 and the auxiliary device 300.

The method specifically comprises the following steps: as shown in fig. 3 to 6, the engaging assembly 400 includes a first fixed rotating shaft 410, the first fixed rotating shaft 410 is rotatably connected with a pawl 412, one side of the pawl 412 is provided with a ratchet 411, the pawl 411 is connected to the connecting rod 230, one side of the first fixed rotating shaft 410 is provided with a stopper for limiting and fixing the pawl 412, the pawl 412 is connected with an inclined slide rod 413, the transmission assembly 200 is engaged and fixed by using a ratchet structure, and the pawl 412 is controlled to fixedly engage with the adjusting pulley 240 when in use.

The improved ratchet mechanism is characterized in that a supporting slide rod 420 is arranged in the casing 100, a slide sleeve 421 is connected to the supporting slide rod 420 in a sliding mode, a slope block 423 is arranged on the slide sleeve 421, the slope block 423 is matched with a slope of the slope slide rod 413, the slope slide rod 413 moves towards one side under the effect of the slope through the movement of the slope block 423, so that the pawl 412 is pushed upwards, the pawl 412 is separated from the ratchet 411, the ratchet 411 is opened, and a movable button 420 is connected between the slide sleeve 421 and the casing 100, so that the slide sleeve 421 can perform resetting movement after being pressed.

Preferably, the casing 100 is provided with a through hole, the sliding sleeve 421 penetrates through the through hole, one end of the sliding sleeve 421 located outside the casing 100 is provided with a movable button 424, the movable button 424 is connected to the main machine casing 110, so that a wearer can press the sliding sleeve 421 outside the hearing aid, and a partition 430 is arranged in the casing 100 and used for partitioning internal structures of the transmission assembly 200, the auxiliary device 300 and the clamping assembly 400 from the casing 100, so that the transmission assembly 200, the auxiliary device 300 and the clamping assembly 400 cannot collide and damage parts in the casing 100 during operation.

The technical scheme in the embodiment of the application has the following technical effects or characteristics:

the user presses the movable button 424 to slide the sliding sleeve 421 on the supporting slide rod 420, meanwhile, the inclined block 423 connected to the sliding sleeve 421 pushes the inclined slide rod 413 to one side to push the pawl 412 upwards, so as to realize the separation between the pawl 412 and the ratchet 411, the ratchet 411 is separated from the limit of the pawl 412 and then reversely rotates under the action of the fixed steel rope 270 air bag body or 340, so that the connecting ear hook 110 is restored to the initial state, the user releases the movable button 424, the sliding sleeve 421 is pushed in the opposite direction under the elastic action of the spring 422, and the inclined slide rod 413 is restored to the initial state under the action of the pawl 412.

Example four

Considering that the user wears the ear hook 110 to press the upper ear part and to give a feeling of soreness to the user in the course of actual use, the auxiliary support of the support member 500 lifts a portion of the ear hook 110 upward, thereby reducing the pressing of the ear hook 110 to the upper ear part.

The method specifically comprises the following steps: as shown in fig. 9-10, the support assembly 500 includes: a connection case 510, an inner slide groove 511, a first connection rod 520, a second connection rod 530, a disk slider 540, a surface suction cup 550, and an outer slider 560.

The connecting box body 510 is connected to the bottom of the shell 100, a cavity is arranged in the connecting box body 510, an inner sliding groove 511 is formed in one side in the connecting box body 510 and connected with the shell 100, and the connecting and placing functions are achieved.

The first connecting rod 520 is rotatably connected in the inner chute 510, a second connecting rod 530 is arranged on one side of the first connecting rod 520, the second connecting rod 530 is rotatably connected with the first connecting rod 520, a disc slider 540 is connected to one end, away from the first connecting rod 520, of the second connecting rod 530, the movement of the first connecting rod 520 and the movement of the second connecting rod 530 are limited, a surface suction cup 550 is arranged on one surface, away from the disc slider 540, of the second connecting rod 530, the fixed position of the surface suction cup 550 can be conveniently adjusted by rotatably connecting the first connecting rod 520 with the second connecting rod 530, meanwhile, the surface suction cup 550 can adapt to the motion of the cheek or the neck of a wearer in the actual process, and the surface suction cup 550 is not easy to fall off;

the outer side of the connection box body 510 is provided with a fixing groove, the fixing groove is communicated with the inner sliding groove 511, the outer slider 560 is slidably connected in the fixing groove, one side of the outer slider 560, which is positioned in the connection box body 510, is connected with the first connecting rod 520, and a user can adjust the extending length of the surface suction cup 550 through a sliding mode.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hearing aid for easy fitting adjustment comprising a shell (100), an attachment ear hook (110) and a sound amplification part (120), characterized in that the hearing aid further comprises a transmission component (200), an auxiliary device (300), a snap component (400) and a support component;

an opening is formed in the shell (100), a pair of convex blocks is arranged on the main machine shell (101), and a sliding wheel (210) is rotatably connected between the pair of convex blocks;

a fixed rotating shaft 220 is arranged in the shell (100), a connecting sleeve (230) is rotatably connected to the fixed rotating shaft (220), the adjusting pulley (240) is meshed with the sliding wheel (210), and a connecting piece (250) is arranged on the upper outer wall of the connecting sleeve (230);

a fixed steel rope (270) is inserted into the connecting ear hook (110), a movable cavity (280) is formed in one side of the fixed steel rope (270), a traction piece (260) is arranged in the movable cavity (208), and the traction piece (260) is connected between the fixed steel rope (270) and the connecting piece (250);

the auxiliary device (300) comprises: the sliding rod (310), the sliding rod (310) is connected in the shell (100) in a sliding mode.

2. The hearing aid for convenient adjustment wearing according to claim 1, wherein the side of the sliding bar (310) near the sliding wheel (210) is provided with a gear rack (320), the gear rack (320) is engaged with the sliding wheel (210) to facilitate the transmission between the gear rack (320) and the sliding wheel (210);

the bottom of the sliding rod (310) is connected with an extrusion soft plate (330) which plays a role in protecting the air bag body (340), and the surface of the air bag body is not easy to puncture during extrusion.

3. A hearing aid adapted to be worn by persons having ordinary skill in the art, as claimed in claim 1, wherein the shell (100) is provided with a bladder (340), and a connecting air tube (350) is connected to one side of the bladder (340);

the shell (100) is provided with a plurality of air holes (360) on one side close to the connecting ear hook (110), and the air holes (360) are uniformly distributed on one side of the shell (100).

4. The hearing aid convenient for adjustment wearing of claim 1, wherein a circulation cavity (380) is formed at one side of the shell (100), the circulation cavity (380) is communicated with the plurality of air holes (360), a layer of rubber film (370) is arranged in the circulation cavity (380), and the rubber film (370) is attached to one side of the plurality of air holes (360) for improving the wearing comfort of the main unit shell.

5. Hearing aid for fitting adjustment according to claim 3, characterized in that a seal is connected between the connecting air tube (350) and the shell (100) and the air bag (340) to improve the tightness of the air communication between the adapter (350) and the communication chamber (380).

6. The hearing aid for fitting convenience as claimed in claim 1, wherein the snap-fit assembly (400) comprises a first fixed shaft (410), a pawl is rotatably connected to the first fixed shaft (410) (412), a ratchet (411) is provided on one side of the pawl (412), and the ratchet (411) is connected to the ratchet (230).

7. Hearing aid for fitting and fitting as claimed in claim 6, characterized in that the first fixed pivot (410) is provided on one side with a stop for limiting and fixing the pawl (412), the pawl (412) being connected to a sloping slide (413).

8. A hearing aid for adjustable wear according to claim 1, c h a r a c t e r i z e d in that a support slide (420) is provided in the housing (100), that a slide sleeve (421) is slidably connected to the support slide (420), that a slope block (423) is provided on the slide sleeve (421), and that the slope block (423) matches the slope of the slope slide (413).

9. Hearing aid for fitting aids according to claim 1, characterised in that the sliding sleeve (421) is provided with a movable button (424) at the end outside the housing (100), said movable button (424) being connected to the main housing (110), said housing (100) being provided with a partition (430).

10. A hearing aid adapted for fitting according to claim 9, wherein the support member (500) comprises: the device comprises a connecting box body (510), an inner sliding groove (511), a first connecting rod (520), a second connecting rod (530), a disc sliding block (540), a surface suction disc (550) and an outer sliding block (560);

the connecting box body (510) is connected to the bottom of the shell (100), a cavity is arranged in the connecting box body (510), and an inner sliding groove (511) is drilled in one side in the connecting box body (510);

the first connecting rod (520) is rotatably connected into the inner sliding groove (510), a second connecting rod (530) is arranged on one side of the first connecting rod (520), the second connecting rod (530) is rotatably connected with the first connecting rod (520), a disc sliding block (540) is connected to one end, away from the first connecting rod (520), of the second connecting rod (530), and a surface suction disc (550) is arranged on one surface, away from the disc sliding block (540), of the second connecting rod (530);

the outer side of the connecting box body (510) is provided with a fixing groove, the fixing groove is communicated with the inner sliding groove (511), the outer sliding block (560) is connected in the fixing groove in a sliding mode, and one side, located in the connecting box body (510), of the outer sliding block (560) is connected with the first connecting rod (520).