Replaceable medical waterproof earmuff

Abstract

The utility model relates to the technical field of otorhinolaryngology, and discloses a replaceable medical waterproof earmuff which comprises a first earmuff frame, a second earmuff frame, an extending block, a first sliding block, two limiting blocks, a second sliding block, an earmuff body and two fixing blocks. Sliding grooves are formed in the two sides, close to the lower ends, of the first earmuff frame and the two sides, close to the lower ends, of the second earmuff frame correspondingly, and sliding moving blocks are arranged in the four sliding grooves correspondingly. According to the ear muff device, the two ear muff frames are arranged, the size of the ear muff frames can be adjusted when a patient wears the ear muff device, the ear muff body and the ear muff frames can be detached, medical staff can conveniently clean and replace the ear muff, in addition, the ear muff device can control the rotating block, the second ear muff shell can rotate in the first ear muff shell, and meanwhile the ear muff can be conveniently replaced. And when the rubber block enters the first vent hole, the first earmuff shell is in a sealed state, so that a waterproof effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of otolaryngology, in particular to a replaceable medical waterproof earmuff. Background Art

[0002] Medical earmuffs are a type of protective device used to cover the ears. When there is auricular trauma, external ear infectious diseases, ear surgery, etc., the wound is covered with sterile dressings and medical earmuffs are needed to protect the external ear to avoid pressure on the auricle, dressing falling off, wound contamination, etc., which may affect the patient's recovery.

[0003] Currently, common medical earmuffs have a simple structure, consisting only of an earmuff frame and an earmuff body. The earmuff size cannot be adjusted according to the head circumference and the patient's wearing experience, causing discomfort to the patient. In addition, ordinary earmuffs and earmuff frames are fixed as one. When worn for a long time, they breed bacteria or are contaminated by wound exudate. They cannot be removed separately for cleaning and disinfection, which is not conducive to the recovery of ear wounds. Medical earmuffs on the market are often designed to be ventilated and breathable, which is conducive to wound healing, but patients are prone to accidentally getting water in their mouths when washing, which can contaminate the wound.

[0004] Therefore, those skilled in the art provide a replaceable medical waterproof earmuff to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a replaceable medical waterproof earmuff. The device can protect ear wounds and prevent gauze from falling off or being contaminated. The addition of a No. 1 earmuff frame and a No. 2 earmuff frame allows the patient to freely adjust the size of the earmuff frame when wearing it, thereby improving the comfort of the patient. In addition, the earmuff body of the device can be separated from the earmuff frame, which is convenient for regularly removing the earmuff body for cleaning and disinfection, keeping the earmuff clean, and avoiding infection of the wound. After removal, a new earmuff body can be replaced, and the use of the earmuff is not affected during the cleaning and disinfection of the earmuff body. The vents on the earmuff body achieve the effect of keeping the wound dry and ventilated, and avoiding the growth of anaerobic bacteria. When it is necessary to take a bath or wash your hair, the rotating block can be controlled to allow the rubber block to enter the interior of the vent, so that the earmuff shell is in a sealed state, thereby achieving a waterproof effect and avoiding contamination of the wound.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A replaceable medical waterproof earmuff, comprising a No. 1 earmuff frame, a No. 2 earmuff frame, an extension block, a No. 1 slider, two limit blocks, a No. 2 slider, an earmuff body and two fixed blocks, wherein the No. 1 earmuff frame and the No. 2 earmuff frame are provided with a No. 2 groove near the middle of the bottom end, the No. 1 earmuff frame and the No. 2 earmuff frame are provided with slide grooves on both sides near the lower end, and sliding moving blocks are arranged inside the four slide grooves, and a pressing ring is fixedly arranged on the opposite side of the four moving blocks, and a moving column is fixedly arranged on the opposite side of the four moving blocks, and bolts are fixedly arranged at the bottom ends of the two moving columns, and control blocks are fixedly arranged on both sides near the upper ends of the two moving columns, and springs are fixedly arranged at the bottom ends of the four control blocks;

[0008] The earmuff body comprises a No. 1 earmuff shell, a No. 2 earmuff shell, a swivel, a plurality of rubber blocks, a rotating block and an ear pad; a plurality of No. 1 ventilation holes are provided on the outer surface of the No. 1 earmuff shell, a plurality of clamping grooves are provided near the front end inside the No. 1 earmuff shell, a sliding rail is provided near the middle inside the No. 1 earmuff shell, and a plurality of No. 2 ventilation holes are provided on one side of the swivel.

[0009] Through the above technical solution, the No. 1 earmuff frame and the No. 2 earmuff frame are convenient for patients to wear, the earmuff body is convenient for protecting the auricle, the No. 2 groove is convenient for placing the bolt, the slide groove is convenient for the moving block to slide inside, and the moving block can drive the moving column to move, and the moving column can drive the bolt to move, when the bolt leaves the interior of the No. 2 groove, it can be threaded with the thread, and the pressing ring is convenient for controlling the movement of the moving block, the control block also controls the movement of the moving column, the spring is convenient for resetting the control block, and the control block controls the moving column to reset, and the moving column can control the bolt to enter the interior of the No. 2 groove;

[0010] The swivel is used to make the No. 2 earmuff shell always rotate inside the No. 1 earmuff shell, the rubber block is used to make the No. 1 earmuff shell in a sealed state, the swivel block is used to control the swivel, the earmuff is made of soft material, which is convenient for reducing the pain caused by the earmuff to the patient, the No. 1 vent hole is used to ventilate the inside of the No. 1 earmuff shell, the clamping groove is used to place the rubber block, the slide rail is used to make the swivel rotate inside the No. 1 earmuff shell, and the No. 2 vent hole is used to ventilate the inside of the No. 2 earmuff shell.

[0011] Furthermore, a thread is provided at the top of the first earmuff shell, an observation window is fixedly provided inside one side of the first earmuff shell, the swivel is rotatably provided inside the slide rail, the rotating block is fixedly provided at the middle of the upper end of one side of the second earmuff shell, the ear pad is fixedly provided inside the second earmuff shell, and a plurality of the rubber blocks are fixedly provided at one side of the outer side of the second earmuff shell;

[0012] Through the above technical scheme, the thread is convenient for thread setting with the bolt, the observation window is convenient for medical staff to observe the patient's auricle rehabilitation, the swivel can rotate inside the slide rail, the rotating block can control the rotation of the No. 2 earmuff shell, the ear pad is convenient for reducing the pain brought to the patient by the earmuff, and the rubber block is convenient for controlling the sealing state of the No. 1 earmuff shell.

[0013] Further, the extension block is fixedly arranged at the middle of one side of the top of the No. 1 earmuff frame, the No. 1 slider is fixedly arranged at one side of the top of the extension block, the two limit blocks are fixedly arranged at both sides of the top of the No. 1 slider, the No. 2 slider is fixedly arranged at one side of the bottom of the extension block, the extension block is slidably arranged inside the No. 1 groove, and a plurality of rubber protrusions are fixedly arranged at the bottom of the No. 1 groove;

[0014] Through the above technical solution, the extension block is convenient for adjusting the size of the earmuff, the limit block is convenient for limiting the No. 1 slider from moving away from the inside of the No. 1 groove, so that the extension block moves away from the inside of the No. 1 groove, and the No. 2 slider is convenient for being snap-connected with the rubber protrusion. When the patient needs to adjust, the No. 2 slider can pass over the rubber protrusion under force, and when it is no longer under force, the No. 2 slider is snap-connected with the rubber protrusion, thereby completing the fixation of the earmuff size.

[0015] Furthermore, the two fixing blocks are fixedly arranged at the inner top of the second groove, the bolt is slidably arranged inside the second groove, the rubber block is clamped inside the first vent hole and the clamping groove, and the second earmuff shell is slidably arranged inside the first earmuff shell through a swivel and a slide rail;

[0016] Through the above technical solution, it is convenient for the bolt to enter and exit the interior of the No. 2 groove. When the rubber block is clamped and arranged in the clamping groove, the No. 1 earmuff shell is in a ventilated state. When the rubber block is clamped and arranged in the No. 1 vent hole, the No. 1 earmuff shell is in a sealed state. The No. 2 earmuff shell is rotatably arranged in the No. 1 earmuff shell through the swivel.

[0017] Furthermore, the first earmuff frame and the second earmuff frame are fixed to the earmuff body by bolts and threads, and the bottom ends of the movable columns are slidably arranged inside the second groove;

[0018] Through the above technical solution, the No. 1 earmuff and the No. 2 earmuff are conveniently connected to the thread of the earmuff body through the bolt, and the movable column can slide inside the No. 2 groove, and similarly the bolt can also slide inside the No. 2 groove.

[0019] Furthermore, the first slider is slidably disposed inside the first groove, and the second slider is slidably disposed inside the first groove;

[0020] Through the above technical solution, the No. 1 slider can slide inside the No. 1 groove, and the No. 2 slider can also slide inside the No. 1 groove, which is beneficial to adjusting the size of the earmuff.

[0021] Furthermore, the top ends of the two movable columns are slidably disposed inside the fixed block, and the four control blocks are slidably disposed inside the fixed block in pairs;

[0022] Through the above technical solution, the movable column can slide inside the fixed block, and the control block can also slide inside the fixed block.

[0023] The utility model has the following beneficial effects:

[0024] 1. The utility model provides a replaceable medical waterproof earmuff. When the patient feels uncomfortable with the size of the earmuff, the second earmuff frame can be directly controlled to move to one side so that the extension block moves out of the first groove. While the extension block moves, the second slider passes through a plurality of rubber protrusions. The farther the distance between the first earmuff frame and the second earmuff frame is, the larger the size of the earmuff is. The rubber protrusion is convenient for fixation. When the patient no longer exerts force, the rubber protrusion is engaged with the second slider to complete the fixation.

[0025] 2. The utility model provides a replaceable medical waterproof earmuff. When medical staff need to clean or disinfect the earmuff body, they can rotate the earmuff body to make the bolt move away from the threaded part, and then remove the earmuff body. When reconnection is required, the pressing block is controlled to move the moving block downward, and the moving block drives the moving column to move during the downward movement. The moving column drives the bolt to move, so that the bolt moves away from the inside of the No. 2 groove and is threadedly arranged with the thread of the earmuff body, thereby completing the replacement of the earmuff body.

[0026] 3. The utility model provides a replaceable medical waterproof earmuff. When the patient needs to wash, the patient can first control the rotating block to rotate the rotating ring inside the slide rail. During the rotation of the rotating ring, the second earmuff shell also rotates inside the first earmuff shell. At this time, the rubber block will leave the inside of the clamping groove and enter the inside of the first vent hole, so that the first earmuff shell is in a sealed state, thereby achieving a waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the axial side of the utility model;

[0028] Figure 2 It is an explosion diagram of the utility model;

[0029] Figure 3 It is a front cross-sectional schematic diagram of the utility model;

[0030] Figure 4 For this utility model Figure 3 A is a partial enlarged schematic diagram;

[0031] Figure 5 For this utility model Figure 3 A partial enlarged schematic diagram of B in the middle;

[0032] Figure 6 It is a schematic diagram of the axial side of the pressing ring and the moving block of the utility model;

[0033] Figure 7 It is a front cross-sectional schematic diagram of the earmuff body of the utility model;

[0034] Figure 8 It is a side cross-sectional schematic diagram of the middle earmuff body of the utility model;

[0035] Fig. 9 It is a schematic axial view of a size 2 earmuff shell in the present invention.

[0036] Legend:

[0037] 1. Earmuff frame No. 1; 2. Earmuff frame No. 2; 3. Pressing ring; 4. Slide; 5. Bolt; 6. Earmuff body; 7. Extension block; 8. Groove No. 1; 9. Sliding block No. 1; 10. Limiting block; 11. Sliding block No. 2; 12. Rubber protrusion; 13. Moving block; 14. Moving column; 15. Spring; 16. Control block; 17. Fixed block; 18. Groove No. 2; 601. Earmuff shell No. 1; 602. Observation window; 603. Ventilation hole No. 1; 604. Slide rail; 605. Swivel; 606. Rubber block; 607. Earmuff shell No. 2; 608. Rotating block; 609. Ear pad; 610. Thread; 611. Snap-in groove; 612. Ventilation hole No. 2. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] Reference Figure 1-9The utility model provides an embodiment: a replaceable medical waterproof earmuff, comprising a No. 1 earmuff frame 1, a No. 2 earmuff frame 2, an extension block 7, a No. 1 slider 9, two limit blocks 10, a No. 2 slider 11, an earmuff body 6 and two fixed blocks 17, the No. 1 earmuff frame 1 and the No. 2 earmuff frame 2 are both provided with a No. 2 groove 18 near the middle of the bottom end, the No. 1 earmuff frame 1 and the No. 2 earmuff frame 2 are both provided with a slide groove 4 near the lower end, and sliding moving blocks 13 are arranged inside the four slide grooves 4, and a pressing ring 3 is fixedly arranged on the opposite side of the four moving blocks 13, and a moving column 14 is fixedly arranged on the opposite side of the four moving blocks 13, and bolts 5 are fixedly arranged at the bottom ends of the two moving columns 14, and control blocks 16 are fixedly arranged on both sides of the upper ends of the two moving columns 14, and springs 15 are fixedly arranged at the bottom ends of the four control blocks 16.

[0040] The No. 1 earmuff frame 1 and the No. 2 earmuff frame 2 are convenient for patients to wear, the earmuff body 6 is convenient for protecting the auricle, the No. 2 groove 18 is convenient for placing the bolt 5, the slide groove 4 is convenient for the moving block 13 to slide inside, and the moving block 13 can drive the moving column 14 to move, and the moving column 14 can drive the bolt 5 to move, when the bolt 5 leaves the interior of the No. 2 groove 18, the thread 610 can be set with the thread 610, and the pressing ring 3 is convenient for controlling the movement of the moving block 13, the control block 16 also controls the movement of the moving column 14, the spring 15 is convenient for resetting the control block 16, and the control block 16 controls the moving column 14 to reset, and the moving column 14 can control the bolt 5 to enter the interior of the No. 2 groove 18.

[0041] The earmuff body 6 includes a No. 1 earmuff shell 601, a No. 2 earmuff shell 607, a swivel 605, a plurality of rubber blocks 606, a rotating block 608 and an ear pad 609. A plurality of No. 1 ventilation holes 603 are provided on the outer surface of the No. 1 earmuff shell 601, a plurality of snap-in grooves 611 are provided near the front end of the No. 1 earmuff shell 601, a slide rail 604 is provided near the middle of the No. 1 earmuff shell 601, and a plurality of No. 2 ventilation holes 612 are provided on one side of the swivel 605.

[0042] The swivel 605 is used to make the second earmuff shell 607 always rotate inside the first earmuff shell 601, and the rubber block 606 is used to make the first earmuff shell 601 sealed. The swivel block 608 is used to control the swivel 605. The earmuff is made of soft material to reduce the pain caused by the earmuff to the patient. The first vent 603 is used to ventilate the inside of the first earmuff shell 601. The clamping groove 611 is used to place the rubber block 606. The slide rail 604 is used to make the swivel 605 rotate inside the first earmuff shell 601. The second vent 612 is used to ventilate the inside of the second earmuff shell 607.

[0043] A thread 610 is provided at the top of the No. 1 earmuff shell 601, an observation window 602 is fixedly provided inside one side of the No. 1 earmuff shell 601, a swivel 605 is rotatably provided inside the slide rail 604, a rotating block 608 is fixedly provided at one side of the No. 2 earmuff shell 607 near the middle of the upper end, an ear pad 609 is fixedly provided inside the No. 2 earmuff shell 607, a plurality of rubber blocks 606 are fixedly provided at one side of the outer side of the No. 2 earmuff shell 607, the thread 610 is convenient for setting the thread 610 with the bolt 5, the observation window 602 is convenient for medical staff to observe the patient's auricle rehabilitation, the swivel 605 can be rotated inside the slide rail 604, the rotating block 608 can control the rotation of the No. 2 earmuff shell 607, the ear pad 609 is convenient for reducing the pain brought to the patient by the earmuff, the rubber block 606 is convenient for controlling the sealing state of the No. 1 earmuff shell 601, and the extension block 7 is fixedly provided at the No. 1 earmuff shell 607. One side of the top of the earmuff frame 1 is close to the middle, the No. 1 slider 9 is fixedly arranged at the top of the extension block 7 near one side, two limit blocks 10 are fixedly arranged on both sides of the top of the No. 1 slider 9, and the No. 2 slider 11 is fixedly arranged at the bottom of the extension block 7 near one side. The extension block 7 is slidably arranged inside the No. 1 groove 8, and a plurality of rubber protrusions 12 are fixedly arranged at the bottom end of the No. 1 groove 8. The extension block 7 is convenient for adjusting the size of the earmuff, and the limit block 10 is convenient for limiting the No. 1 slider 9 from leaving the inside of the No. 1 groove 8, so that the extension block 7 leaves the inside of the No. 1 groove 8. The No. 2 slider 11 is convenient for being clamped with the rubber protrusion 12. When the patient needs to adjust, the No. 2 slider 11 can pass over the rubber protrusion 12 under stress, and when it is no longer under stress, the No. 2 slider 11 is clamped with the rubber protrusion 12, thereby completing the fixation of the earmuff size.

[0044] The two fixing blocks 17 are fixedly arranged at the inner top of the No. 2 groove 18, the bolt 5 is slidably arranged inside the No. 2 groove 18, the rubber block 606 is clamped and arranged inside the No. 1 vent 603 and the clamping groove 611, and the No. 2 earmuff shell 607 is slidably arranged inside the No. 1 earmuff shell 601 through the swivel 605 and the slide rail 604, so that the bolt 5 can enter and exit the No. 2 groove 18. When the rubber block 606 is clamped and arranged inside the clamping groove 611, the No. 1 earmuff shell 601 is in a ventilated state, and when the rubber block 606 is clamped and arranged inside the No. 1 vent 603, the No. 1 earmuff shell 601 is in a sealed state. The No. 2 earmuff shell 607 is rotatably arranged inside the No. 1 earmuff shell 601 through the swivel 605, and the No. 1 earmuff frame 1 and the No. 2 earmuff frame 2 are connected to the earmuffs through the bolt 5 and the thread 610. The main body 6 is fixed, and the bottom ends of the movable columns 14 are slidably arranged inside the No. 2 groove 18, so that the No. 2 earmuffs and the No. 2 earmuffs are connected to the thread 610 of the earmuff body 6 through the bolt 5, and the movable column 14 can slide inside the No. 2 groove 18, and the bolt 5 can also slide inside the No. 2 groove 18, so that the No. 1 slider 9 can slide inside the No. 1 groove 8, and the No. 2 slider 11 can also slide inside the No. 1 groove 8, which is conducive to adjusting the size of the earmuffs. The top ends of the two movable columns 14 are slidably arranged inside the fixed block 17, and the four control blocks 16 are slidably arranged inside the fixed block 17 between each other, so that the movable column 14 can slide inside the fixed block 17, and the control block 16 can also slide inside the fixed block 17.

[0045] Working principle: When the patient wears the device and needs to adjust the size of the earmuff frame, the patient can first directly control the extension block 7 to move out of the No. 1 groove 8. The longer the extension block 7 moves out of the No. 1 groove 8, the larger the size of the No. 1 earmuff frame 1 and the No. 2 earmuff frame 2. The No. 2 slider 11 and the rubber protrusion 12 are convenient for fixation. When the patient does not apply force, the No. 2 slider 11 and the rubber protrusion 12 are clamped together to complete the fixation of the size. In addition, when the patient wears the earmuff for a long time, the earmuff body 6 will breed bacteria or be contaminated by wound exudate, which is not conducive to the recovery of the ear wound. In this case, the earmuff body 6 needs to be replaced and cleaned. At this time, the earmuff body 6 can be rotated first to make the bolt 5 move away from the inside of the thread 610, and the earmuff body 6 can be removed. When the earmuff body 6 is removed, the bolt 5 will automatically return to the inside of the second groove 18 without being subjected to force. At this time, the pressing block is controlled to move the moving block 13 downward, and the moving block 13 moves downward to drive the moving column 14 to move, and the moving column 14 drives the bolt 5 to move, so that the bolt 5 moves away The second groove 18 is threadedly arranged with the thread 610 of the earmuff body 6, so as to complete the replacement of the earmuff body 6, thereby achieving the effect of not affecting the patient's continued use of the earmuff. When the patient needs to wash, the rotating block 608 can be controlled to make the second earmuff shell 607 rotate inside the first earmuff shell 601. During this process, the rubber block 606 drives out of the inside of the clamping groove 611 and enters the inside of the first vent 603, so that the first earmuff shell 601 is in a sealed state, thereby reducing the possibility of liquid entering the earmuff during the patient's washing process to cause wound infection.

[0046] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A replaceable medical waterproof earmuff, comprising a first earmuff frame (1), a second earmuff frame (2), an extension block (7), a first slider (9), two limit blocks (10), a second slider (11), an earmuff body (6) and two fixing blocks (17), characterized in that: The bottom ends of the first earmuff frame (1) and the second earmuff frame (2) are both provided with a second groove (18) near the middle, and the first earmuff frame (1) and the second earmuff frame (2) are both provided with a slide groove (4) near the lower ends, and the four slide grooves (4) are each provided with a sliding moving block (13), and a pressing ring (3) is fixedly provided on the opposite side of each of the four moving blocks (13), and a moving column (14) is fixedly provided on the opposite side of each of the four moving blocks (13), and bolts (5) are fixedly provided at the bottom ends of the two moving columns (14), and control blocks (16) are fixedly provided on both sides of the upper ends of the two moving columns (14), and springs (15) are fixedly provided at the bottom ends of the four control blocks (16); The earmuff body (6) comprises a first earmuff shell (601), a second earmuff shell (607), a rotating ring (605), a plurality of rubber blocks (606), a rotating block (608) and an ear pad (609); a plurality of first vent holes (603) are provided on the outer surface of the first earmuff shell (601); a plurality of clamping grooves (611) are provided at the front end of the first earmuff shell (601); a slide rail (604) is provided at the middle of the first earmuff shell (601); and a plurality of second vent holes (612) are provided on one side of the rotating ring (605).

2. A replaceable medical waterproof earmuff according to claim 1, characterized in that: The top of the first earmuff shell (601) is provided with a thread (610); an observation window (602) is fixedly arranged inside one side of the first earmuff shell (601); the rotating ring (605) is rotatably arranged inside the slide rail (604); the rotating block (608) is fixedly arranged at the middle of the upper end of one side of the second earmuff shell (607); the ear pad (609) is fixedly arranged inside the second earmuff shell (607); and a plurality of rubber blocks (606) are fixedly arranged on one side of the outside of the second earmuff shell (607).

3. The replaceable medical waterproof earmuff according to claim 1, characterized in that: The extension block (7) is fixedly arranged at one side of the top of the first earmuff frame (1) near the middle, the first slider (9) is fixedly arranged at one side of the top of the extension block (7), the two limit blocks (10) are fixedly arranged at both sides of the top of the first slider (9), the second slider (11) is fixedly arranged at one side of the bottom of the extension block (7), the extension block (7) is slidably arranged inside the first groove (8), and a plurality of rubber protrusions (12) are fixedly arranged at the bottom of the first groove (8).

4. The replaceable medical waterproof earmuff according to claim 1, characterized in that: The two fixing blocks (17) are both fixedly arranged at the inner top end of the second groove (18), the bolt (5) is slidably arranged inside the second groove (18), the rubber block (606) is snap-fitted inside the first vent hole (603) and the snap-fit ​​groove (611), and the second earmuff shell (607) is slidably arranged inside the first earmuff shell (601) via a rotating ring (605) and a slide rail (604).

5. The replaceable medical waterproof earmuff according to claim 1, characterized in that: The first earmuff frame (1) and the second earmuff frame (2) are both fixed to the earmuff body (6) via bolts (5) and threads (610), and the bottom ends of the movable columns (14) are both slidably disposed inside the second groove (18).

6. The replaceable medical waterproof earmuff according to claim 1, characterized in that: The first slider (9) is slidably disposed inside the first groove (8), and the second slider (11) is slidably disposed inside the first groove (8).

7. The replaceable medical waterproof earmuff according to claim 1, characterized in that: The top ends of the two movable columns (14) are slidably disposed inside the fixed block (17), and the four control blocks (16) are slidably disposed inside the fixed block (17) in pairs.

Images