Adjustable earmuff type hearing test device

Abstract

The invention discloses an adjustable earmuff type hearing test device which comprises two ear shells, the two ear shells are connected through a headband, a mounting box is arranged in each ear shell, the space between each mounting box and the corresponding ear shell is filled with an air cushion, an air pump is arranged in each air cushion, and the air pump is connected with the headband. A vacuum pump is arranged on one side, back on to the mounting box, of the ear shell, and the vacuum pump is communicated with the interior of the ear shell through a connecting pipe; an electric sliding rail is further arranged on the installation box, a movable block is arranged in the electric sliding rail, a hose is arranged on the movable block, an air bag is further arranged on the hose, the hose is communicated with the vacuum pump, and a probe used for conducting hearing tests is arranged at the end, close to the movable block, of the hose. And the movable block drives the probe to move along the arrangement direction of the electric slide rail. Compared with the prior art, the sound insulation effect during hearing test can be enhanced, so that the accuracy and the reliability of a test result are improved.

Description

Technical Field

[0001] The invention relates to the technical field of hearing detection, in particular to an adjustable earmuff type hearing test device. Background Art

[0002] Currently, hearing tests cover a series of projects aimed at detecting and analyzing sound signals originating from the ear. Among these projects, the control of environmental sound constitutes a key link in the testing process, and its requirements are particularly strict. In order to ensure the accuracy and effectiveness of the test, a high degree of sound insulation must be achieved to meet specific test standards. It is necessary to isolate the interference of external noise to ensure that the sound signals captured during the test only come from the subject's ear and are not contaminated by environmental noise. In addition, it is also crucial to prevent the occurrence of sound leakage, because any form of sound leakage may introduce external sound signals, which may mislead the test results and affect the accurate assessment of the subject's hearing condition. Summary of the invention

[0003] In view of the problem in the prior art that poor sound insulation during hearing tests affects test results, the present invention provides an adjustable earmuff-type hearing test device.

[0004] The technical solution of the present invention is to disclose an adjustable earmuff-type hearing test device, comprising two ear shells, the two ear shells are connected by a headband, an installation box is arranged in each ear shell, an air cushion is filled between the installation box and the ear shell, an air pump is arranged in the air cushion, a vacuum pump is arranged on the side of the ear shell facing away from the installation box, and the vacuum pump is connected to the interior of the ear shell through a connecting pipe; an electric slide rail is also arranged on the installation box, a movable block is arranged in the electric slide rail, a hose is arranged on the movable block, an air bag is also arranged on the hose, and the hose is connected to the vacuum pump, a probe for hearing test is arranged at one end of the hose close to the movable block, and the movable block drives the probe to move along the setting direction of the electric slide rail.

[0005] Furthermore, the hose passes through the ear shell and is connected with the vacuum pump, and an electromagnetic valve and an air outlet are provided at one end of the hose close to the vacuum pump.

[0006] Furthermore, a micro camera and an LED lamp bead are arranged on the side of the movable block facing the probe.

[0007] Furthermore, a speaker is integrated in the probe.

[0008] Furthermore, the air cushion is provided with an exhaust pipe connected to the air pump.

[0009] Furthermore, the ear shell is movably connected to the headband via a connecting plate, a movable groove is provided on the connecting plate, a positioning block is provided on the ear shell, and the positioning block is located in the movable groove.

[0010] Furthermore, a plurality of protrusions are arranged in the movable groove, and the protrusions are movably arranged in the movable groove by means of springs, and the positioning block is provided with grooves matching with the protrusions.

[0011] Furthermore, a metal spring sheet is arranged inside the headband, the connecting plate and the headband are movably connected via a rotating shaft, and a limiting block is also arranged at the connection between the headband and the connecting plate.

[0012] Furthermore, the headband is movably arranged on a support plate, guide grooves are arranged on both sides of the support plate, two movable rods are vertically arranged on the support plate, the movable rods are respectively located in the two guide grooves, a screw rod and a motor connected to the screw rod are arranged in each guide groove, the end of the movable rod is connected to the screw rod, and sleeves for accommodating the movable rods are arranged at both ends of the headband.

[0013] Furthermore, a fixing seat is provided on the supporting plate, a retractable plate is provided on the fixing seat, a buckle connected to the headband is provided on the retractable plate, the headband moves away from or closer to the supporting plate as the retractable plate extends out of or retracts into the fixing seat, and a sponge pad is also provided on a side of the supporting plate facing the headband.

[0014] Compared with the prior art, the present invention can enhance the sound insulation effect in hearing tests to ensure the accuracy and reliability of test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the ear shell and headband structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the structure of the installation box of the present invention.

[0019] Figure 4 It is a schematic diagram of the air cushion and air pump structure of the present invention.

[0020] Figure 5 It is a schematic diagram of the structure of the electric slide rail of the present invention.

[0021] Figure 6 It is a schematic diagram of the gas outlet structure of the solenoid valve of the present invention.

[0022] Figure 7 It is a schematic diagram of the connecting plate and movable groove structure of the present invention.

[0023] Figure 8 It is a schematic diagram of the structure of the rotating shaft and the limit block of the present invention.

[0024] Fig. 9 It is a schematic diagram of the support plate structure of the present invention.

[0025] Among them, the ear shell 1; the installation box 11; the air cushion 12; the air pump 121; the exhaust pipe 122; the vacuum pump 13; the connecting pipe 131; the electric slide rail 14; the movable block 15; the micro camera 151; the LED lamp bead 152; the hose 16; the air bag 161; the solenoid valve 162; the air outlet 163; the probe 17; the positioning block 18; the headband 2; the connecting plate 21; the movable groove 211; the protrusion 212; the spring 213; the rotating shaft 22; the limit block 23; the sleeve 24; the support plate 3; the guide groove 31; the screw rod 311; the motor 312; the movable rod 32; the fixing seat 33; the telescopic plate 34; the buckle 35; the sponge pad 36. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the present invention, rather than implying that each embodiment of the present invention must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0028] In the description of the present application, the terms “first” and “second” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0029] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0031] An adjustable earmuff-type hearing test device comprises two ear shells 1, which are connected by a headband 2. An installation box 11 is arranged in each ear shell 1, an air cushion 12 is filled between the installation box 11 and the ear shell 1, an air pump 121 is arranged in the air cushion 12, a vacuum pump 13 is arranged on the side of the ear shell 1 facing away from the installation box 11, and the vacuum pump 13 is connected to the inside of the ear shell 1 through a connecting pipe 131; an electric slide rail 14 is also arranged on the installation box 11, a movable block 15 is arranged in the electric slide rail 14, a hose 16 is arranged on the movable block 15, an air bag 161 is also arranged on the hose 16, and the hose 16 is connected to the vacuum pump 13, a probe 17 for hearing test is arranged at one end of the hose 16 close to the movable block 15, and the movable block 15 drives the probe 17 to move along the setting direction of the electric slide rail 14.

[0032] Furthermore, the hose 16 passes through the ear shell 1 and is connected to the vacuum pump 13 , and an electromagnetic valve 162 and an air outlet 163 are provided at one end of the hose 16 close to the vacuum pump 13 .

[0033] Furthermore, a micro camera 151 and an LED lamp bead 152 are provided on the side of the movable block 15 facing the probe 17 .

[0034] Furthermore, a speaker is integrated in the probe 17 .

[0035] Furthermore, the air cushion 12 is provided with an exhaust pipe 122 which is connected to the air pump 121 .

[0036] In a specific embodiment, Figures 1 to 6As shown, the main body of an adjustable earmuff-type hearing test device proposed in the present application is two ear shells 1, which are connected together by a headband 2 so that the user can wear it on the head for subsequent hearing tests. An installation box 11 is arranged inside each ear shell 1. In order to improve the comfort and stability of wearing, an air cushion 12 is arranged between the installation box 11 and the ear shell 1. An air pump 121 is arranged inside the air cushion 12, and an exhaust pipe 122 connected to the air pump 121 is arranged on the surface of the air cushion 12. Starting the air pump 121 can extract the gas inside the air cushion 12 and discharge it to the external environment through the exhaust pipe 122. When the user wears the adjustable earmuff-type hearing test device proposed in the present application, the internal gas of the air cushion 12 can generate adsorption force after being extracted, so that the user's ear can fit tightly with the installation box 11, thereby achieving a stable wearing effect. A vacuum pump 13 is provided on the side of each ear shell 1 facing away from the installation box 11. The vacuum pump 13 is connected to the inside of the ear shell 1 through a connecting pipe 131. Starting the vacuum pump 13 can evacuate the inside of the ear shell 1 to a vacuum state. Since a vacuum does not transmit sound, this design can effectively avoid interference from external sounds. In this way, when a hearing test is being conducted, it can be free from the influence of external noise, thereby improving the accuracy of the hearing test. In addition, an electric slide rail 14 is provided on the installation box 11 in each ear shell 1, and a movable block 15 is provided on the electric slide rail 14. A hose 16 is provided on the movable block 15. The hose 16 passes through the inside of the ear shell 1 and finally penetrates the ear shell 1 to communicate with the vacuum pump 13. A probe 17 is provided at one end of the hose 16 close to the movable block 15. The probe 17 is located on the side of the installation box 11 facing away from the ear shell 1. An air bag 161 is also provided on the hose 16, and the air bag 161 is provided close to the probe 17. A solenoid valve 162 and an air outlet 163 are also provided at one end of the hose 16 close to the vacuum pump 13. A speaker for playing a test sound is integrated on the probe 17, and a micro camera 151 and an LED lamp bead 152 are also provided on the side of the movable block 15 facing the probe 17.

[0037] In actual use, when a user needs to wear an adjustable earmuff-type hearing test device proposed in this application for a hearing test, the LED lamp bead 152 provides lighting for the micro camera 151 to ensure that the micro camera 151 can clearly capture the image of the user's ear. After the micro camera 151 determines the position of the user's ear canal, the electric slide rail 14 is started to move the movable block 15, thereby moving the probe 17 and the air bag 161 on the movable block 15 to a position facing the user's ear canal. This design can automatically adjust the position of the probe 17 and the air bag 161 according to the size of the user's head, so that when different users use this application to perform a hearing test, the probe 17 and the air bag 161 can accurately align with the user's ear canal to ensure the smooth progress of the hearing test, thereby improving applicability. The air pump 121 in the air cushion 12 draws out the gas in the air cushion 12, so that the installation box 11 fits the user's head, and then the vacuum pump 13 is started to draw the inside of the ear shell 1 to a vacuum state. Since the vacuum pump 13 is connected to the hose 16, when the vacuum pump 13 evacuates the interior of the auricle 1, the electromagnetic valve 162 on the hose 16 is first opened, and the gas inside the auricle 1 is transported to the airbag 161 through the hose 16, so that the airbag 161 gradually expands due to inflation. During the hearing test, since the probe 17 and the airbag 161 are both located in the user's ear canal, as the volume of the airbag 161 increases, the probe 17 can stay in the user's ear canal more firmly. In addition, the airbag 161 also plays a sealing role, effectively enhancing the sound insulation effect during the hearing test, and further ensuring the accuracy and reliability of the hearing test. After the airbag 161 is inflated, the electromagnetic valve 162 on the hose 16 is closed to keep the airbag 161 inflated, and then the air outlet 163 is opened to discharge the internal gas of the auricle 1 extracted by the vacuum pump 13 from the air outlet 163 to the outside. When the hearing test is completed, the solenoid valve 162 is opened again to allow the gas in the airbag 161 to be discharged through the outlet 163. After the volume of the airbag 161 returns to normal, the probe 17 and the airbag 161 can be taken out of the user's ear canal. And because the aperture of each person's ear canal is different, for example, the aperture of a child's ear canal is generally smaller than that of an adult, the operator can flexibly select an airbag 161 of the corresponding size according to the size of the user's ear canal aperture. This design is intended to ensure that during the test, the airbag 161 can fit tightly into the user's ear canal, thereby achieving a good sealing effect. By adapting airbags 161 of different sizes, the accuracy and comfort of the hearing test can be further improved, so that the present application can perform hearing tests on users with different ear canal apertures.

[0038] Furthermore, the ear shell 1 is movably connected to the headband 2 via a connecting plate 21 , a movable groove 211 is provided on the connecting plate 21 , and a positioning block 18 is provided on the ear shell 1 , and the positioning block 18 is located in the movable groove 211 .

[0039] Furthermore, a plurality of protrusions 212 are disposed in the movable groove 211 . The protrusions 212 are movably disposed in the movable groove 211 by means of springs 213 . The positioning block 18 is provided with grooves matched with the protrusions 212 .

[0040] Furthermore, a metal spring sheet is arranged inside the headband 2 , the connecting plate 21 and the headband 2 are movably connected via a rotating shaft 22 , and a limiting block 23 is also arranged at the connection between the headband 2 and the connecting plate 21 .

[0041] Furthermore, the headband 2 is movably arranged on the support plate 3, and guide grooves 31 are arranged on both sides of the support plate 3. Two movable rods 32 are vertically arranged on the support plate 3. The movable rods 32 are respectively located in the two guide grooves 31. A screw rod 311 and a motor 312 connected to the screw rod 311 are arranged in each guide groove 31. The end of the movable rod 32 is connected to the screw rod 311, and sleeves 24 for accommodating the movable rod 32 are arranged at both ends of the headband 2.

[0042] Furthermore, a fixed seat 33 is provided on the support plate 3, a telescopic plate 34 is provided on the fixed seat 33, a buckle 35 connected to the headband 2 is provided on the telescopic plate 34, and the headband 2 moves away from or closer to the support plate 3 as the telescopic plate 34 extends out of or retracts into the fixed seat 33, and a sponge pad 36 is also provided on the side of the support plate 3 facing the headband 2.

[0043] In a specific embodiment, Figures 7 to 9 As shown, a connecting plate 21 is also provided on each ear shell 1, and a positioning block 18 is also provided on the side of the ear shell 1 facing away from the probe 17, and the positioning block 18 is embedded in the movable groove 211 on the connecting plate 21. In addition, a plurality of protrusions 212 are also provided in the movable groove 211, and each two protrusions 212 form a group, and the two protrusions 212 in the same group are respectively located on the inner walls of the two sides of the movable groove 211, and the protrusions 212 are movably installed in the movable groove 211 through springs 213, and a groove engaged with the protrusions 212 is provided on the positioning block 18, so that the ear shell 1 can be adjusted in the movable groove 211 on the connecting plate 21. Metal springs are also provided inside the headband 2 to enhance the structural stability, and the connecting plate 21 is movably connected to the two ends of the headband 2 through the rotating shaft 22, and a limit block 23 is provided at the connection between the headband 2 and the connecting plate 21. The ear shells 1 can rotate along the rotation axis 22, so as to adjust the distance between the two ear shells 1 to adapt to the head width of different users. At the same time, the design of the limit block 23 can limit the range of the ear shells 1 when rotating along the rotation axis 22 to prevent the ear shells 1 from over-turning. The setting of the metal spring sheet also gives the headband 2 good resilience, so that the ear shells 1 can fit the head contours of different users under the action of the resilience, thereby improving the wearing comfort.

[0044] In addition, the headband 2 can be movably mounted on the support plate 3, and guide grooves 31 are provided on both sides of the support plate 3, and screw rods 311 and motors 312 are provided in the guide grooves 31. A movable rod 32 connected to the screw rod 311 is provided in each guide groove 31, and the movable rod 32 is arranged perpendicular to the plane where the support plate 3 is located. When the motor 312 drives the screw rod 311 to rotate, the two movable rods 32 on both sides of the support plate 3 can be made to approach or move away from each other. Sleeves are provided at both ends of the headband 2 close to the connecting plate 21, and the movable rod 32 passes through the sleeves to be connected to the headband 2. The support plate 3 can be installed on a bed, and a sponge pad 36 is also provided on the side of the support plate 3 facing the headband 2. The sponge pad 36 supports the head, so that the user can perform a hearing test in a lying posture. When the user needs to perform a hearing test, the motor 312 is started to move the two movable rods 32 away from each other, so that the ear shells 1 at both ends of the headband 2 also move away from each other. When the user's head lies on the support plate 3, the two movable rods 32 are moved closer to each other, so that the ear shells 1 at both ends of the headband 2 can clamp the user's head. In addition, a fixed seat 33 is provided on the support plate 3, and a telescopic plate 34 is provided on the fixed seat 33. The telescopic plate 34 can be extended or retracted into the fixed seat 33. A buckle 35 is provided at one end of the telescopic plate 34 away from the fixed seat 33, and the headband 2 is connected to the telescopic plate 34 through the buckle 35. The distance between the headband 2 and the support plate 3 can be adjusted by adjusting the length of the telescopic plate 34 extending from the fixed seat 33, and the sleeves at both ends of the headband 2 will also move accordingly on the movable rod 32. Through this design, when the user lies down to perform a hearing test, the distance between the headband 2 and the support plate 3 can be adjusted according to the size of the user's head, ensuring that the ear shell 1 can be at the same height as the user's ear, so as to ensure that the hearing test is carried out smoothly.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable earmuff-type hearing test device, comprising two ear shells (1), characterized in that: The two ear shells (1) are connected via a headband (2); a mounting box (11) is arranged in each ear shell (1); an air cushion (12) is filled between the mounting box (11) and the ear shell (1); an air pump (121) is arranged in the air cushion (12); a vacuum pump (13) is arranged on a side of the ear shell (1) facing away from the mounting box (11); the vacuum pump (13) is connected to the interior of the ear shell (1) via a connecting pipe (131); and an electric A movable slide rail (14), wherein a movable block (15) is arranged inside the electric slide rail (14), a hose (16) is arranged on the movable block (15), an air bag (161) is also arranged on the hose (16), and the hose (16) is connected to the vacuum pump (13), and a probe (17) for performing a hearing test is arranged at one end of the hose (16) close to the movable block (15), and the movable block (15) drives the probe (17) to move along the setting direction of the electric slide rail (14).

2. The adjustable earmuff-type hearing test device according to claim 1, characterized in that: The hose (16) passes through the ear shell (1) and is connected to the vacuum pump (13); an electromagnetic valve (162) and an air outlet (163) are provided at one end of the hose (16) close to the vacuum pump (13).

3. The adjustable earmuff-type hearing test device according to claim 2, characterized in that: A micro camera (151) and an LED lamp bead (152) are provided on one side of the movable block (15) facing the probe (17).

4. The adjustable earmuff-type hearing test device according to claim 3, characterized in that: A speaker is integrated into the probe (17).

5. The adjustable earmuff-type hearing test device according to claim 4, characterized in that: The air cushion (12) is provided with an exhaust pipe (122) which is in communication with the air pump (121).

6. The adjustable earmuff-type hearing test device according to claim 1, characterized in that: The ear shell (1) is movably connected to the headband (2) via a connecting plate (21); a movable groove (211) is provided on the connecting plate (21); a positioning block (18) is provided on the ear shell (1); and the positioning block (18) is located in the movable groove (211).

7. The adjustable earmuff-type hearing test device according to claim 6, characterized in that: A plurality of protrusions (212) are arranged in the movable groove (211); the protrusions (212) are movably arranged in the movable groove (211) via springs (213); and the positioning block (18) is provided with grooves matching the protrusions (212).

8. The adjustable earmuff-type hearing test device according to claim 7, characterized in that: A metal spring is provided inside the headband (2); the connecting plate (21) and the headband (2) are movably connected via a rotating shaft (22); and a limit block (23) is also provided at the connection between the headband (2) and the connecting plate (21).

9. The adjustable earmuff-type hearing test device according to claim 8, characterized in that: The headband (2) is movably arranged on a support plate (3), guide grooves (31) are arranged on both sides of the support plate (3), two movable rods (32) are vertically arranged on the support plate (3), the movable rods (32) are respectively located in the two guide grooves (31), each of the guide grooves (31) is provided with a screw rod (311) and a motor (312) connected to the screw rod (311), the end of the movable rod (32) is connected to the screw rod (311), and sleeves (24) for accommodating the movable rod (32) are arranged at both ends of the headband (2).

10. The adjustable earmuff-type hearing test device according to claim 9, characterized in that: The support plate (3) is provided with a fixing seat (33), the fixing seat (33) is provided with a telescopic plate (34), the telescopic plate (34) is provided with a buckle (35) connected to the headband (2), the headband (2) moves away from or towards the support plate (3) as the telescopic plate (34) extends out of or retracts into the fixing seat (33), and a sponge pad (36) is also provided on a side of the support plate (3) facing the headband (2).

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