An otological hearing examination device

Abstract

The present invention relates to the field of otological hearing examinations, and discloses an otological hearing examination device, which includes a headband, earcups, a wireless transmission module, a control module, a first groove, a second groove, a plug, a movable rod, an annular plate, a second annular groove, a sliding groove, a third sliding rod and a retaining wall. The two earcups of the present invention can both block the ears and open the ears, and the two earcups can be automatically opened alternately; at the same time, when the doctor makes a sound, the patient can be prompted that the sound has been made, which can prevent the patient from being distracted or losing patience due to the lack of feedback for a long time, and reduce the feedback speed when the patient hears the sound; in addition, when the patient does not hear the sound, the patient can tilt the head to give feedback to the doctor and the detection system, and when the patient hears the sound, the patient can nod to give feedback to the doctor and the detection system, which not only improves the interaction between the doctor and the patient, can concentrate the patient's attention for a long time, but also improves the efficiency of hearing detection.

Description

Technical Field

[0001] The present invention relates to the field of otolaryngology hearing examination, and in particular to an otolaryngology hearing examination device. Background Art

[0002] Hearing tests include speech testing, table testing, whispering, tuning fork testing, and pure tone audiometry (including air and bone conduction testing). For speech and table testing, patients must sit or stand with the ear being tested open and the untested ear blocked with cotton balls, earplugs, or fingers. The patient must close their eyes. During the test, the clinician plays a tone, and if the patient can hear it, they press a button or repeat the words they hear to get feedback from the clinician. However, during this process, the patient cannot receive feedback from the clinician.

[0003] During the hearing test, the patient closes their eyes or is blindfolded in a soundproof and extremely quiet environment. If the patient cannot hear the doctor's voice in the initial stage due to hearing problems, they will be in a silent and dark world for a certain period of time. In this situation, it is easy for the elderly and children, especially, to lose focus or patience, which will affect their response speed to the sound in the later stages. Therefore, it is important to improve the interaction between doctors and patients, focus the patient's attention, and increase convenience during the hearing test. Summary of the Invention

[0004] Based on the above problems, the present invention provides an otolaryngological hearing examination device. After the doctor makes a sound, the device can prompt the patient that the sound has been made, thereby improving the interactivity between the doctor and the patient during the hearing test, focusing the patient's attention for a long time, and improving the efficiency of the hearing test; at the same time, the device can automatically block the ears or keep the ears in an open state, and can continuously test the hearing of both ears.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] An otolaryngological hearing test device includes a headband and earmuffs located at both ends of the headband. The edge of the earmuff facing the user is provided with a soft sealing ring. The earmuff includes a shell and sound insulation cotton filled in the shell. A wireless transmission module and a control module are provided in the earmuff.

[0007] The earmuff has a first groove formed on a side facing away from the wearer, and a second groove formed on a side facing the wearer, which is connected to the first groove and has a larger cross-sectional area than the first groove. A disc-shaped block is provided in the second groove to completely block the second groove and provide sound insulation. A cylindrical movable rod is provided at the center of the side of the block facing the first groove, extending from one end of the first groove away from the second groove.

[0008] The inner wall of the first groove is provided with a first annular groove arranged around the movable rod. A rotatable annular plate is arranged in the first annular groove. The movable rod passes through the center of the annular plate and is threadedly connected with the annular plate. The annular plate is provided with ventilation holes.

[0009] One end of the inner wall of the second groove far from the first groove is provided with a second annular groove arranged around the plug block. The inner wall of the second groove is further provided with a sliding groove extending towards the side where the first groove is located and communicating with the second annular groove. The outer side wall of the plug block is provided with a third sliding rod that can slide along the sliding groove. The third sliding rod can also rotate along the circumferential direction of the second annular groove. A retaining wall that cuts off the second annular groove is arranged in the second annular groove. The retaining wall is located on one side of the extension line of the sliding groove.

[0010] Furthermore, a rotating motor is arranged in the earphone cup. A rotating rod is arranged at the output shaft end of the rotating motor. A gear is arranged at the end of the rotating rod far from the rotating motor. A rack meshing with the gear is arranged on the outer side wall of the annular plate.

[0011] Furthermore, a plurality of uniformly arranged first protrusions are arranged on the surface of the plug block facing away from the movable rod. The surface of the first protrusions facing away from the plug block is an arc surface.

[0012] Furthermore, a response box covering the first groove is arranged on the side of the earphone cup facing away from the person. The response box includes a top plate, a bottom plate, a front baffle, a rear baffle, and a side baffle facing the earphone cup. An arc-shaped second protrusion is arranged on the surface of the side baffle facing the earphone cup. The surface of the second protrusion facing the earphone cup is an arc surface and is provided with a first pressure sensing chip. An inclined chamber is arranged on the surface of the movable rod facing the side baffle. The lower end of the chamber is close to the side where the plug block is located. A first sliding rod is arranged in the chamber. A second pressure sensing chip is arranged at the end of the first sliding rod facing the side baffle. A first spring bonded to the first sliding rod is arranged on the inner wall of the chamber close to the plug block. When the earphone cup tilts towards the side where the side baffle is located, the first sliding rod will slide out of the chamber and collide with the first pressure sensing chip. At this time, the end of the first sliding rod close to the first spring is located in the chamber.

[0013] Furthermore, the rear baffle is provided with a receiving cylinder extending towards the side where the front baffle is located. The receiving cylinder is inclined. The lower end of the receiving cylinder is close to the rear baffle. A second sliding rod is arranged in the receiving cylinder. A third protrusion is arranged on the side wall of the second sliding rod facing the side baffle. The surface of the third protrusion facing away from the second sliding rod is an arc surface. A second spring bonded to the second sliding rod is arranged on the rear baffle and located in the receiving cylinder. When the plug block is completely located in the second groove, the end of the receiving cylinder far from the rear baffle is exactly blocked by the movable rod. When the plug block extends out of the second groove, the movable rod no longer blocks the receiving cylinder. When the patient lowers their head, the second sliding rod slides out of the receiving cylinder. The outer side wall of the second sliding rod rubs against the first pressure sensing chip until the third protrusion is blocked by the second protrusion.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The two earcups of the present invention can both block the ears and open the ears, and the two earcups can be automatically opened alternately; at the same time, when the doctor makes a sound, it can prompt the patient that the sound has been made, which can prevent the patient from being distracted or losing patience due to the lack of feedback for a long time, and reduce the feedback speed when the patient hears the sound; in addition, when the patient does not hear the sound, the patient can tilt the head to feedback the situation to the doctor and the detection system, and when the patient hears the sound, the patient can nod to feedback the situation to the doctor and the detection system, which not only improves the interaction between the doctor and the patient, can concentrate the patient's attention for a long time, but also improves the efficiency of hearing detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view of the external structure of the present invention;

[0016] Figure 2 is the rear view of the internal structure of the present invention;

[0017] Figure 3 is the rear view of the internal structure after the blocking block in the earcup of the present invention extends out of the second groove;

[0018] Figure 4 is Figure 3 the internal structure of the left view of the receiving cylinder in the response box in

[0019] Figure 5 is the internal structure of the top view of the receiving cylinder in the response box of the present invention;

[0020] Figure 6 is Figure 5 the enlarged view of point A in

[0021] Figure 7 is Figure 3 the left view of the second annular groove when the third sliding rod in is located in the second annular groove and the blocking block is not located in the second groove;

[0022] Wherein: 1. headband; 2. earcup; 3. soft sealing ring; 4. outer shell; 5. sound insulation cotton; 6. wireless transmission module; 7. control module; 8. first groove; 9. second groove; 10. blocking block; 11. movable rod; 12. first annular groove; 13. annular plate; 14. ventilation hole; 15. second annular groove; 16. sliding groove; 17. third sliding rod; 18. retaining wall; 19. rotating motor; 20. rotating rod; 21. gear; 22. rack; 23. first protrusion; 24. top plate; 25. bottom plate; 26. front baffle; 27. rear baffle; 28. side baffle; 29. second protrusion; 30. first pressure sensing chip; 31. first sliding rod; 32. second pressure sensing chip; 33. receiving cylinder; 34. second sliding rod; 35. third protrusion; 36. second spring; 37. first spring. Detailed implementation mode

[0023] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with embodiments and the accompanying drawings. The illustrative implementation modes of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0024] See Figures 1 to 7 , an otological hearing examination device, specifically see the attached Figure 1 , including earphones. The earphones are composed of a headband 1 and earcups 2 located at both ends of the headband 1. A soft sealing ring 3 is provided at the edge of the side of the earcup 2 facing the human. The soft sealing ring 3 is bonded to the earcup 2. The soft sealing ring 3 has the function of tightly covering the earcup 2 on the ear to assist in closing the ear.

[0025] The earcup 2 includes a housing 4 and sound insulation cotton 5 filled in the housing 4. Except for various parts mentioned before and after this paragraph in the earcup 2 of this embodiment, other parts in the earcup 2 are filled with sound insulation cotton 5 having a sound insulation function.

[0026] A wireless transmission module 6 and a control module 7 are provided in the earcup 2. The wireless transmission module 6 is used to receive instructions from the terminal or send information to the terminal. The control module 7 is used for data analysis and controlling the operation of the parts in the earcup 2.

[0027] A groove 8 is provided on the side of the earcup 2 facing away from the human. A groove 9 is provided on the side of the earcup 2 facing the human, which is communicated with the groove 8 and has a cross-sectional area larger than that of the groove 8. A disk-shaped plug 10 that completely blocks and insulates the groove 9 is provided in the groove 9. A cylindrical movable rod 11 that extends out of one end of the groove 8 away from the groove 9 is provided at the center of the side of the plug 10 facing the groove 8. The movable rod 11 is bonded to the plug 10, and the movable rod 11 does not completely fill the groove 8.

[0028] When the plug 10 is completely located in the groove 9, external sounds cannot enter the ear through the earcup 2; when the plug 10 is removed from the groove 9, the groove 8 and the groove 9 communicate the human ear with the outside, and external sounds can enter the human ear.

[0029] An annular groove 12 surrounding the movable rod 11 is provided on the inner wall of the groove 8. A rotatable annular plate 13 is provided in the annular groove 12, and the annular plate 13 can rotate in the annular groove 12. The movable rod 11 passes through the center of the annular plate 13 and is threadedly connected to the annular plate 13. The annular plate 13 is provided with ventilation holes 14, and the ventilation holes 14 communicate the groove 9 with the outside, facilitating external sounds to enter the groove 9 through the annular plate 13 and preventing the annular plate 13 from blocking part of the sounds.

[0030] In the earcup 2 of this embodiment, a rotary motor 19 is provided. At the output shaft end of the rotary motor 19, a rotating rod 20 is provided. At the end of the rotating rod 20 far from the rotary motor 19, a gear 21 is provided. The rotating rod 20 is adhesively connected to the gear 21. On the outer side wall of the annular plate 13, a rack 22 meshing with the gear 21 is provided. The rotary motor 19 drives the rotating rod 20 to rotate. The rotating rod 20 drives the gear 21 to rotate. The gear 21 drives the annular plate 13 to rotate. The annular plate 13 drives the movable rod 11 to move towards the direction close to the second groove 9 or move away from the second groove 9, so as to move the plug 10 out of the second groove 9 or move it into the second groove 9.

[0031] At one end of the inner wall of the second groove 9 far from the first groove 8, an annular groove two 15 surrounding the plug 10 is provided. One end of the annular groove two 15 far from the first groove 8 penetrates through the earcup 2. On the inner wall of the second groove 9, a chute 16 extending towards the side where the first groove 8 is located and communicating with the annular groove two 15 is also provided. On the outer side wall of the plug 10, a sliding rod three 17 is provided. The sliding rod three 17 is adhesively connected to the plug 10. The sliding rod three 17 is located in the chute 16 and can slide along the chute 16. After the sliding rod three 17 slides from the chute 16 into the annular groove two 15, it can rotate along the circumferential direction of the annular groove two 15. In the annular groove two 15, a retaining wall 18 that cuts off the annular groove two 15 is provided. The retaining wall 18 is located on one side of the extension line of the chute 16.

[0032] When the sliding rod three 17 moves from the chute 16 into the annular groove two 15, the side wall of the sliding rod three 17 facing the retaining wall 18 just fits with the retaining wall 18. The function of designing the retaining wall 18 is shown in the attached Figure 3 and attached Figure 7 , the rotary motor 19 drives the annular plate 13 to rotate counterclockwise, so as to move the plug 10 out of the second groove 9, making the earcup 2 on this side in an open state, and the external sound can enter the ear through the first groove 8 and the second groove 9.

[0033] When the plug 10 is completely removed from the second groove 9, the plug 10 has another function, that is, the function of prompting the patient that the doctor has made a sound. The prompting method is as follows: On the side of the plug 10 facing away from the movable rod 11 in this embodiment, a plurality of evenly arranged first protrusions 23 are provided. The side of the first protrusion 23 facing away from the plug 10 is an arc surface, and the first protrusion 23 is bonded to the plug 10. When the plug 10 is completely removed from the second groove 9, the first groove 8 and the second groove 9 communicate the outside with the ear canal, and the third sliding rod 17 just completely moves into the second annular groove 15 from the sliding groove 16. Therefore, if the rotating motor 19 is continuously driven to drive the annular plate 13 to rotate counterclockwise at this time, since the third sliding rod 17 no longer plays a role in restricting the rotation of the movable rod 11 and the plug 10, the movable rod 11 and the plug 10 will rotate with the annular plate 13, and the third sliding rod 17 rotates along the second annular groove 15 until the third sliding rod 17 rotates to the other side of the retaining wall 18. After the third sliding rod 17 is blocked by the retaining wall 18, the rotating motor 19 is driven to drive the annular plate 13 to rotate clockwise, and the third sliding rod 17 is rotated to the other side of the retaining wall 18 again. At this time, the third sliding rod 17 is facing the sliding groove 16. During this process, the plug 10 rotates, and the first protrusion 23 on the surface of the plug 10 will rub the surface of the patient's auricle, thereby prompting the patient.

[0034] When the above functions are completed, a problem will be encountered, that is, when the plug 10 is to be moved back into the second groove 9, if the retaining wall 18 does not exist, the plug 10 will not be able to be moved into the second groove 9. Therefore, after the retaining wall 18 is designed, to move the plug 10 into the second groove 9, only the third sliding rod 17 needs to be rotated to one side of the retaining wall 18, that is, the position where the third sliding rod 17 is facing the sliding groove 16. At this time, the rotating motor 19 is driven to drive the annular plate 13 to rotate clockwise. Since the retaining wall 18 blocks the third sliding rod 17, the third sliding rod 17, the plug 10 and the movable rod 11 cannot rotate with the annular plate 13. Therefore, the movable rod 11 moves away from the second groove 9, and the plug 10 is moved back into the second groove 9.

[0035] In addition, another function of the retaining wall 18 is that when the first protrusion 23 rubs the surface of the patient's auricle, the first protrusion 23 needs to contact the surface of the patient's auricle. However, since the body types of each patient are different, the distance that the plug 10 moves away from the earcup 2 will also be different. When the plug 10 is removed from the earcup 2, in order to continue driving the plug 10 to move towards the patient, it is necessary to continue driving the annular plate 13 to rotate counterclockwise. When the third sliding rod 17 is rotated to the side of the retaining wall 18 where the sliding groove 16 is not provided, and the annular plate 13 is continuously driven to rotate counterclockwise, since the retaining wall 18 blocks the third sliding rod 17, the plug 10 will continue to move away from the first groove 8 at this time, so that the first protrusion 23 is attached to the surface of the patient's auricle.

[0036] The protrusion 23 rubs the surface of the patient's ear, and the patient knows that the doctor has issued a sound or other instruction. Regardless of whether the patient hears the sound or receives the instruction, the patient needs to give feedback to the doctor so that the doctor and the system can get feedback information in time.

[0037] To achieve this goal, this embodiment features a response box on the side of the earmuff 2 facing away from the wearer, covering the groove 1 (8). The response box comprises a top panel 24, a bottom panel 25, a front baffle 26, a rear baffle 27, and side baffles 28 facing the earmuff 2. The front baffle 26 and rear baffle 27 do not completely enclose the response box, allowing sound to enter. The top panel 24, bottom panel 25, front baffle 26, rear baffle 27, and side baffles 28 are bonded to each other, and both the top panel 24 and bottom panel 25 are bonded to the earmuff 2. The side baffle 28 facing the earmuff 2 is provided with an arc-shaped protrusion 2 (29), which is bonded to the side baffle 28. The side of the protrusion 29 facing the earmuff 2 is a circular surface and houses a pressure sensor chip 1 (30).

[0038] The side of the movable rod 11 facing the side guard 28 is provided with an inclined chamber. The chamber extends along the length of the movable rod 11, with its lower end near the side where the block 10 is located. Within the chamber is a slide bar 1 31 extending along the length of the movable rod 11. A pressure sensor chip 2 32 is located on the end of the slide bar 1 31 facing the side guard 28. A spring 1 37 is bonded to the inner wall of the chamber, bonded to the slide bar 1 31, and to the inner wall of the chamber.

[0039] When the earmuff 2 tilts toward the side where the side baffle 28 is located, that is, when the patient tilts his head, the slide bar 31 will slide out of the chamber and collide with the pressure sensing chip 30. At this time, the end of the slide bar 31 close to the spring 37 is still in the chamber, and the pressure sensing chip 1 30 and the pressure sensing chip 2 32 are squeezed at the same time, thereby sending the pressure information to the control module 7 at the same time, and sending it to the doctor's computer via the wireless transmission module 6. When the patient straightens his head, the tension of the spring and the gravity of the slide bar 31 will bring the slide bar 31 back into the chamber.

[0040] In this embodiment, the rear baffle 27 is provided with a receiving tube 33 extending toward the side of the front baffle 26. The receiving tube 33 is tilted, with its lower end positioned adjacent to the rear baffle 27 and bonded to the rear baffle 27. A second slide bar 34 is positioned within the receiving tube 33 and extends along its length. A third protrusion 35 is provided on the sidewall of the second slide bar 34 facing the side baffle 28. The third protrusion 35 is bonded to the second slide bar 34, and the surface of the third protrusion 35 facing away from the second slide bar 34 is an arc-shaped surface. The rear baffle 27 is provided with a second spring 36 located within the receiving tube 33 and bonded to the second slide bar 34. The second spring 36 is bonded to the rear baffle 27.

[0041] When the blocking block 10 is completely located within the second groove 9, the end of the receiving cylinder 33 away from the rear baffle 27 is exactly blocked by the movable rod 11. When the blocking block 10 extends out of the second groove 9, the movable rod 11 no longer blocks the receiving cylinder 33. When the patient bows their head, the second sliding rod 34 slides out of the receiving cylinder 33, and the outer sidewall of the second sliding rod 34 rubs against the first pressure sensing chip 30 until the third protrusion 35 is blocked by the second protrusion 29. At this time, only the first pressure sensing chip 30 displays the pressure value, indicating that the patient nods, showing that the patient has heard the sound.

[0042] The working principle of this embodiment is as follows: During use, put on the earphone for the patient. If it is necessary to detect the hearing of the patient's right ear, then control the rotation motor 19 of the right ear to start, driving the blocking block 10 of the right ear to move out of the second groove 9, while the blocking block 10 of the left ear remains in the second groove 9 of the left ear, and the left ear is blocked and cannot hear the sound;

[0043] After that, the doctor asks the patient whether they feel that something has touched the outer surface of the auricle. If the patient does not feel it, then continue to drive the annular plate 13 to rotate counterclockwise (refer to the attached Figure 3 and the attached Figure 7 ). At this time, the third sliding rod 17 rotates along the second annular groove 15 until the third sliding rod 17 rotates to the other side of the retaining wall 18 (the side without the sliding groove 16). Continue to rotate the annular plate 13 counterclockwise. Since the retaining wall 18 blocks the third sliding rod 17, at this time, the movable rod 11 will push the blocking block 10 in the direction close to the patient's ear. When the patient feels that the first protrusion 23 touches the auricle surface, the doctor turns off the rotation motor 19;

[0044] After that, after the doctor makes the first sound, the doctor turns on the rotation motor 19 and drives the annular plate 13 to rotate clockwise. The first protrusion 23 rubs against the auricle surface of the patient, and the patient knows that the doctor has made a sound. If the patient did not hear the sound before, then tilt the head to the left and right once each. When tilting the head, the first sliding rod 31 in the ear cup 2 of the right ear will slide out of the chamber and collide with the first pressure sensing chip 30. The first pressure sensing chip 30 and the second pressure sensing chip 32 are simultaneously squeezed and send the pressure information to the control module 7 at the same time, and are sent to the doctor's computer terminal through the wireless transmission module 6, and the doctor obtains the feedback information; If the patient hears the sound after the doctor makes the sound, the patient can directly nod and ignore the friction of the first protrusion 23. When the patient nods, that is, bows the head, the second sliding rod 34 of the right ear will slide out of the receiving cylinder 33, and the outer sidewall of the second sliding rod 34 rubs against the first pressure sensing chip 30 until the third protrusion 35 is blocked by the second protrusion 29. At this time, only the first pressure sensing chip 30 displays the pressure value, and the doctor receives the feedback information and knows that the patient has heard the sound; Similarly, the left ear is also detected in the above manner;

[0045] During the above process, the pressure values of the pressure sensing chip 1 30 and the pressure sensing chip 2 32 on the left ear will not change beyond the error range.

[0046] The above is the embodiment of the present invention. The above embodiments and the specific parameters in the embodiments are only for clearly expressing the invention verification process, and are not used to limit the protection scope of the present invention. The protection scope of the present invention still depends on its claims. All equivalent structural changes made by using the content of the specification and drawings of the present invention should, by the same token, be included in the protection scope of the present invention.

Claims

1. An otological hearing examination device, comprising a headband (1) and earcups (2) located at both ends of the headband (1). A soft sealing ring (3) is provided in a circle at the edge of the side of the earcup (2) facing a person. It is characterized in that, The earmuff (2) includes a housing (4) and sound insulation cotton (5) filled in the housing (4). A wireless transmission module (6) and a control module (7) are provided in the earmuff (2). A first groove (8) is provided on the side of the earmuff (2) away from the human body. A second groove (9) that communicates with the first groove (8) and has a cross-sectional area larger than that of the first groove (8) is provided on the side of the earmuff (2) facing the human body. A disk-shaped blocking block (10) that completely blocks the second groove (9) and has sound insulation is provided in the second groove (9). A movable rod (11) that extends out of one end of the first groove (8) away from the second groove (9) and is cylindrical is provided at the center of the side of the blocking block (10) facing the first groove (8). An annular groove one (12) that is arranged around the movable rod (11) is provided on the inner wall of the first groove (8). A rotatable annular plate (13) is provided in the annular groove one (12). The movable rod (11) passes through the center of the annular plate (13) and is threadedly connected to the annular plate (13). The annular plate (13) is provided with air holes (14). An annular groove two (15) that is arranged around the blocking block (10) is provided at one end of the inner wall of the second groove (9) away from the first groove (8). A sliding groove (16) that extends toward the side where the first groove (8) is located and communicates with the annular groove two (15) is further provided on the inner wall of the second groove (9). A sliding rod three (17) that can slide along the sliding groove (16) is provided on the outer side wall of the blocking block (10). The sliding rod three (17) can also rotate along the circumferential direction of the annular groove two (15). A retaining wall (18) that cuts off the annular groove two (15) is provided in the annular groove two (15). The retaining wall (18) is located on one side of the extension line of the sliding groove (16). A rotary motor (19) is provided in the earmuff (2). A rotating rod (20) is provided at the output shaft end of the rotary motor (19). A gear (21) is provided at one end of the rotating rod (20) away from the rotary motor (19). A rack (22) that meshes with the gear (21) is provided on the outer side wall of the annular plate (13). A plurality of uniformly arranged first protrusions (23) are provided on the side of the blocking block (10) away from the movable rod (11). The side of the first protrusions (23) away from the blocking block (10) is an arc surface.

2. The otological hearing examination device according to claim 1, characterized in that, On the side of the earcup (2) facing away from the human body, there is a response box covering the first groove (8). The response box includes a top plate (24), a bottom plate (25), a front baffle (26), a rear baffle (27), and a side baffle (28) facing the earcup (2). On the side of the side baffle (28) facing the earcup (2), there is an arc-shaped second protrusion (29). The side of the second protrusion (29) facing the earcup (2) is a circular arc surface and is provided with a first pressure sensing chip (30). On the side of the movable rod (11) facing the side baffle (28), there is an inclined chamber. The lower end of the chamber is close to the side where the plug (10) is located. Inside the chamber, there is a first sliding rod (31). One end of the first sliding rod (31) facing the side baffle (28) is provided with a second pressure sensing chip (32). On the inner wall of the chamber close to the plug (10), there is a first spring (37) bonded to the first sliding rod (31). When the earcup (2) tilts towards the side where the side baffle (28) is located, the first sliding rod (31) will slide out of the chamber and collide with the first pressure sensing chip (30). At this time, the end of the first sliding rod (31) close to the first spring (37) is located inside the chamber.

3. An otological hearing examination device according to claim 2, characterized in that, The rear baffle (27) is provided with a receiving cylinder (33) extending towards the side of the front baffle (26). The receiving cylinder (33) is inclined, and the lower end of the receiving cylinder (33) is close to the rear baffle (27). Inside the receiving cylinder (33), there is a second sliding rod (34). On the side wall of the second sliding rod (34) facing the side baffle (28), there is a third protrusion (35). The side of the third protrusion (35) facing away from the second sliding rod (34) is a circular arc surface. The rear baffle (27) is provided with a second spring (36) located inside the receiving cylinder (33) and bonded to the second sliding rod (34). When the plug (10) is completely located inside the second groove (9), the end of the receiving cylinder (33) away from the rear baffle (27) is exactly blocked by the movable rod (11). When the plug (10) extends out of the second groove (9), the movable rod (11) no longer blocks the receiving cylinder (33). When the patient lowers their head, the second sliding rod (34) slides out of the receiving cylinder (33), and the outer side wall of the second sliding rod (34) rubs against the first pressure sensing chip (30) until the third protrusion (35) is blocked by the second protrusion (29).

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