Stethoscope

Abstract

The utility model provides a stethoscope. The stethoscope comprises a pickup component, two ear tubes, a listening tube connecting the pickup component and the ear tubes, a first earplug, a second earplug and an earplug protection assembly, wherein the first earplug and the second earplug are connected with the two ear tubes respectively; the earplug protection assembly comprises a cylindrical protection sleeve with two open ends, and a buffer pad arranged in a cavity of the cylindrical protection sleeve. The buffer pad is used for dividing the cavity of the cylindrical protective sleeve into a first space and a second space along the axis direction of the cylindrical protective sleeve; the first space is used for accommodating a first earplug, and the end face of a sound outlet hole of the first earplug abuts against the first face of the buffer pad; the second space is used for accommodating a second earplug, and the end face of a sound outlet hole of the second earplug abuts against the second face of the buffer pad; wherein the first earplug enters the first space through the first opening of the cylindrical protective sleeve, and the second earplug enters the second space through the second opening of the cylindrical protective sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a stethoscope. Background Art

[0002] The stethoscope is the most commonly used diagnostic tool for doctors, used to pick up sounds inside the patient's body. The stethoscope has some shortcomings: on the one hand, the earplugs must be inserted into the ear canal when the stethoscope is in use, so the role of the earplugs is crucial. When the earplugs are not in use, they are always exposed, so they are easily contaminated and damaged. On the other hand, the sound pickup part of the stethoscope usually has a metal shell. When the metal shell contacts the skin, due to the fast heat conduction of metal, especially in a low temperature environment, it usually gives people a cold feeling, affecting the feeling. Utility Model Content

[0003] In view of this, an embodiment of the present disclosure provides a stethoscope.

[0004] According to a first aspect of an embodiment of the present disclosure, a stethoscope is provided, the stethoscope comprising: a sound pickup component, two ear tubes, a hearing tube connecting the sound pickup component and the ear tubes, a first earplug and a second earplug respectively connected to the two ear tubes, and an earplug protection assembly; wherein,

[0005] The earplug protection assembly comprises: a cylindrical protective sleeve with openings at both ends, and a buffer pad arranged in the cavity of the cylindrical protective sleeve;

[0006] The buffer pad is used to separate the cavity of the cylindrical protective sleeve into a first space and a second space along the axial direction of the cylindrical protective sleeve;

[0007] The first space is used to accommodate a first earplug, and the end surface of the sound outlet hole of the first earplug abuts against the first surface of the buffer pad; the second space is used to accommodate a second earplug, and the end surface of the sound outlet hole of the second earplug abuts against the second surface of the buffer pad; wherein, the first earplug enters the first space through the first opening of the tubular protective sleeve, and the second earplug enters the second space through the second opening of the tubular protective sleeve.

[0008] In combination with the embodiments of the first aspect, in some embodiments, the two ear tubes include: a first ear tube connected to the first earplug and a second ear tube connected to the second earplug; the earplug protection assembly further includes: a first clamping member and a second clamping member respectively disposed at the first opening and the second opening;

[0009] The first clamping member is used to clamp the first ear tube so as to fix the relative position between the first ear tube and the cylindrical protective sleeve when the first earplug is stored in the first space;

[0010] The second clamping member is used to clamp the second ear tube so as to fix the relative position between the second ear tube and the cylindrical protective sleeve when the second earplug is stored in the second space.

[0011] In combination with the embodiments of the first aspect, in some embodiments, the first clamping member includes: a first mounting member disposed on the first opening end side and fixedly connected to the cylindrical protective sleeve, a first strap and a second strap disposed on the first mounting member, wherein the free end of the first strap and the free end of the second strap overlap each other to bind the first ear tube from the circumferential direction;

[0012] The second clamping member includes: a second mounting member arranged on the second opening end side and fixedly connected to the cylindrical protective sleeve, a third strap and a fourth strap arranged on the second mounting member, wherein the free end of the third strap and the free end of the fourth strap overlap each other to bind the second ear tube circumferentially.

[0013] In combination with the embodiment of the first aspect, in some embodiments, the free end of the first strap and the free end of the second strap are overlapped with each other through a first Velcro;

[0014] The free end of the third binding strap and the free end of the fourth binding strap are overlapped with each other through a second Velcro.

[0015] In combination with the embodiments of the first aspect, in some embodiments, the stethoscope includes: a heating cover having a third opening disposed on one end side;

[0016] The bottom shell and the side wall of the heating cover form a receiving cavity for receiving the sound pickup component, and the sound pickup component is placed in or removed from the receiving cavity through the third opening;

[0017] A heating portion is provided on the inner surface of the side wall, and the heating portion is used to heat the sound pickup component when the sound pickup component is accommodated in the accommodating cavity.

[0018] In combination with the embodiment of the first aspect, in some embodiments, the heating cover further comprises: a push-pull rod;

[0019] The bottom shell is provided with a through hole, the push-pull rod can pass through the through hole and extend into the accommodating cavity, and can move along the axis direction of the through hole to push the sound pickup component located in the accommodating cavity;

[0020] The push-pull rod has at least a first position and a second position during the movement;

[0021] When the push-pull rod is in the first position, the accommodating cavity can accommodate the sound pickup component;

[0022] When the push-pull rod is in the second position, the push-pull rod can abut against the sound pickup component to at least make the sound pickup surface of the sound pickup component extend out of the accommodating cavity from the third opening.

[0023] In combination with the embodiment of the first aspect, in some embodiments, the push-pull rod surface has a first limiting hole and a second limiting hole distributed along the axial direction of the push-pull rod;

[0024] The heating cover further comprises: a limit plate and a limit pin arranged on the outer surface of the bottom shell;

[0025] The limiting pin penetrates the guide hole of the limiting plate and moves radially along the push-pull rod to cooperate with the first limiting hole or the second limiting hole to limit the push-pull rod to the first position or the second position respectively.

[0026] In combination with the embodiments of the first aspect, in some embodiments, the limit pin sleeve is provided with an elastic component, the first end of the elastic component is connected to the limit plate, the second end of the elastic component is connected to the limit pin, and the elastic component is used to generate an elastic force to push the limit pin toward the push-pull rod so that the limit pin remains in the first limit hole or the second limit hole.

[0027] In combination with the embodiment of the first aspect, in some embodiments, a clearance groove penetrating the side wall is provided on the side wall, and the clearance groove is used to make way for the auditory tube.

[0028] In combination with the embodiments of the first aspect, in some embodiments, the earplug protection component is made of antibacterial material.

[0029] The present embodiment provides a stethoscope, which comprises: a sound pickup component, two ear tubes, a hearing tube connecting the sound pickup component and the ear tubes, a first earplug and a second earplug respectively connected to the two ear tubes, and an earplug protection assembly; wherein the earplug protection assembly comprises: a cylindrical protective sleeve with openings at both ends, and a buffer pad arranged in the cavity of the cylindrical protective sleeve; the buffer pad is used to separate the cavity of the cylindrical protective sleeve into a first space and a second space along the axial direction of the cylindrical protective sleeve; the first space is used to accommodate the first earplug, and the end face of the sound outlet hole of the first earplug abuts against the first face of the buffer pad; the second space is used to accommodate the second earplug, and the end face of the sound outlet hole of the second earplug abuts against the second face of the buffer pad; wherein the first earplug enters the first space through the first opening of the cylindrical protective sleeve, and the second earplug enters the second space through the second opening of the cylindrical protective sleeve. In this way, through the cylindrical protective cover, the user can use the cylindrical protective cover to cover the earplug when the earplug is not in use, thereby reducing the earplug's exposure to air pollution and damage, and improving the hygiene and safety of the stethoscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of a stethoscope structure according to an exemplary embodiment;

[0031] Figure 2 is a schematic diagram of the structure of an earplug protection assembly according to an exemplary embodiment;

[0032] Figure 3 is a schematic diagram of a clamping member structure according to an exemplary embodiment;

[0033] Figure 4 is a schematic diagram of a heating cover structure according to an exemplary embodiment;

[0034] Figure 5 is a schematic diagram of a partial cross-sectional structure of a heating hood according to an exemplary embodiment;

[0035] Figure 6 The figure is a schematic diagram of a partially enlarged structure of a heating hood according to an exemplary embodiment. DETAILED DESCRIPTION

[0036] In order to make the technical solutions and beneficial effects of the utility model more obvious and easy to understand, the following is a detailed description by listing specific embodiments. The drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application belongs.

[0037] The embodiments of the present disclosure are not exhaustive, but are only illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined, for example, some or all of the steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element 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 invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, each element, each row, or each column in the table of the embodiments of the present disclosure can be implemented as an independent embodiment, and the combination of any element, any row, and any column can also be implemented as an independent embodiment.

[0040] like Figure 1 and Figure 2 As shown, the embodiment of the present disclosure provides a stethoscope 1, the stethoscope 1 comprising a sound pickup component 110, two ear tubes 120, an ear tube 130 connecting the sound pickup component 110 and the ear tubes 120, a first earplug 160 and a second earplug 170 respectively connected to the two ear tubes 120, and an earplug protection component 140; wherein,

[0041] The earplug protection assembly 140 includes: a cylindrical protection sleeve 141 with openings at both ends, and a buffer pad 142 disposed in the cavity of the cylindrical protection sleeve 141;

[0042] The buffer pad 142 is used to separate the cavity of the cylindrical protective sleeve 141 into a first space 145 and a second space 146 along the axial direction of the cylindrical protective sleeve 141;

[0043] The first space 145 is used to accommodate a first earplug 160, and the end surface of the sound outlet hole of the first earplug 160 abuts against the first surface of the buffer pad 142; the second space 146 is used to accommodate a second earplug 170, and the end surface of the sound outlet hole of the second earplug 170 abuts against the second surface of the buffer pad 142; wherein, the first earplug 160 enters the first space 145 through the first opening of the cylindrical protective sleeve 141, and the second earplug 170 enters the second space 146 through the second opening of the cylindrical protective sleeve 141.

[0044] In a possible implementation, the sound pickup component 110 can be used to pick up sound, and transmit the sound waves picked up to the earplug through the auditory tube 130 and the ear tube 120 in sequence, and then transmitted to the human ear by the earplug.

[0045] In a possible implementation, the auditory tube 130 may be connected to the two ear tubes 120 via a tee, so as to transmit the sound waves in the auditory tube 130 to the two ear tubes 120 .

[0046] In a possible implementation, the surface of the cylindrical protective sleeve 141 that contacts the earplug can be made of a flexible material. For example, the cylindrical protective sleeve 141 can be made of an outer wear-resistant material and an inner flexible material. The flexible material can include sponge, silicone, etc. to reduce wear on the earplug.

[0047] In a possible implementation, the first earplug 160 and the second earplug 170 may be respectively interference-fitted with the inner surface of the cylindrical protective sleeve 141 to reduce the possibility of the cylindrical protective sleeve 141 falling off.

[0048] In a possible implementation, the surface of the buffer pad 142 that contacts the earplug may be made of a flexible material such as sponge or silicone.

[0049] In a possible implementation, the buffer pad 142 may match the cavity cross-section of the cylindrical protective sleeve 141 to divide the cavity of the cylindrical protective sleeve 141 into a first space 145 and a second space 146 .

[0050] In a possible implementation, the buffer pad 142 and the cylindrical protective sleeve 141 may be integrally formed.

[0051] In a possible implementation, since the first earplug 160 and the second earplug 170 are respectively located at the free ends of the ear tube 120, they can move within a certain range, for example, the first earplug 160 and the second earplug 170 can move along the axis direction of the cylindrical protective sleeve 141. Therefore, the first earplug 160 and the second earplug 170 can be inserted into the first space 145 and the second space 146 from the openings (the first opening and the second opening) at both ends of the cylindrical protective sleeve 141, or the first earplug 160 and the second earplug 170 can be moved out of the first space 145 and the second space 146, respectively.

[0052] When the user needs to use the earplug, the user can remove the first earplug 160 and the second earplug 170 from the cylindrical protective sleeve 141. When the user does not need to use the earplug, the user can insert the first earplug 160 and the second earplug 170 into the first space 145 and the second space 146 respectively to reduce the impact of the external environment on the earplug.

[0053] In this way, through the cylindrical protective cover 141, the user can use the cylindrical protective cover 141 to cover the earplug when the earplug is not in use, reducing the earplug's exposure to air pollution and damage, and improving the hygiene and safety of the stethoscope 1; at the same time, because the cylindrical protective cover 141 and the buffer pad 142 are made of flexible materials, the wear on the earplug can be reduced.

[0054] In some embodiments, the two ear tubes 120 include: a first ear tube 121 connected to the first ear plug 160 and a second ear tube 122 connected to the second ear plug 170; the ear plug protection assembly 140 further includes: a first clamping member 143 and a second clamping member 144 respectively disposed at the first opening and the second opening;

[0055] The first clamping member 143 is used to clamp the first ear tube 121 so as to fix the relative position between the first ear tube 121 and the cylindrical protective sleeve 141 when the first earplug 160 is received in the first space 145;

[0056] The second clamping member 144 is used to clamp the second ear tube 122 so as to fix the relative position between the second ear tube 122 and the cylindrical protective sleeve 141 when the second earplug 170 is received in the second space 146 .

[0057] Here, the first clamping member 143 may be disposed on the side wall end surface of the cylindrical protective sleeve 141 located at the first opening position. The second clamping member 144 may be disposed on the side wall end surface of the cylindrical protective sleeve 141 located at the second opening position.

[0058] When the earplug is located in the cylindrical protective sleeve 141 (i.e., the first earplug 160 is located in the first space 145, and the second earplug 170 is located in the second space 146), the ear tube 120 is located outside the cylindrical protective sleeve 141 (i.e., the first ear tube 121 is located outside the first opening, and the second ear tube 122 is located outside the second opening). The first clamping member 143 and the second clamping member 144 can clamp the first ear tube 121 and the second ear tube 122 respectively to fix the relative position between the cylindrical protective sleeve 141 and the first ear tube 121, and the relative position between the cylindrical protective sleeve 141 and the second ear tube 122, so as to fix the first earplug 160 and the second earplug 170 in the first space 145 and the second space 146 respectively, and reduce the situation that the first earplug 160 and the second earplug 170 fall off from the cylindrical protective sleeve 141.

[0059] In some embodiments, Figure 2 and Figure 3 As shown, the first clamping member 143 includes: a first mounting member 1431 disposed at the first opening end side and fixedly connected to the cylindrical protective sleeve 141, a first binding band 1432 and a second binding band 1433 disposed on the first mounting member 1431, wherein the free end of the first binding band 1432 and the free end of the second binding band 1433 overlap each other to bind the first ear tube 121 from the circumferential direction;

[0060] The second clamping member 144 includes: a second mounting member 1441 arranged on the second opening end side and fixedly connected to the cylindrical protective sleeve 141, a third strap 1442 and a fourth strap 1443 arranged on the second mounting member 1441, wherein the free end of the third strap 1442 and the free end of the fourth strap 1443 overlap each other to bind the second ear tube 122 circumferentially.

[0061] In a possible implementation, the first mounting member 1431 and the cylindrical protective sleeve 141 may be integrally designed, and the first mounting member 1431 may be a protrusion extending from the end of the first open end of the cylindrical protective sleeve 141. Similarly, the second mounting member 1441 may also be a protrusion extending from the end of the cylindrical protective sleeve 141.

[0062] In a possible implementation, the first strap 1432 and the second strap 1433 may be two independent straps, the connection end of the first strap 1432 is connected to the first mounting member 1431, and the connection end of the second strap 1433 is connected to the first mounting member 1431. The free end of the first strap 1432 and the free end of the second strap 1433 may be overlapped by a buckle or the like. Similarly, the third strap 1442 and the fourth strap 1443 may be two independent straps, the connection end of the third strap 1442 is connected to the second mounting member 1441, and the connection end of the fourth strap 1443 is connected to the second mounting member 1441. The free end of the third strap 1442 and the free end of the fourth strap 1443 may be overlapped by a buckle or the like.

[0063] In a possible implementation, the first strap 1432 and the second strap 1433 may be the same strap, the middle portion of the strap is connected to the first mounting member 1431, and the two ends of the strap are respectively the free end of the first strap 1432 and the free end of the second strap 1433. Similarly, the third strap 1442 and the fourth strap 1443 may be the same strap, the middle portion of the strap is connected to the second mounting member 1441, and the two ends of the strap are respectively the free end of the third strap 1442 and the free end of the fourth strap 1443.

[0064] In some embodiments, the free end of the first strap 1432 and the free end of the second strap 1433 are overlapped with each other by a first Velcro;

[0065] The free end of the third binding strap 1442 and the free end of the fourth binding strap 1443 are overlapped with each other through a second Velcro.

[0066] In one possible implementation, Figure 3 As shown, the outer surface of the free end of the first strap 1432 and the inner surface of the free end of the second strap 1433 are overlapped by the first Velcro. For example, the outer surface of the free end of the first strap 1432 is provided with the hook surface of the first Velcro, and the inner surface of the free end of the second strap 1433 is provided with the fur surface of the first Velcro; or the outer surface of the free end of the first strap 1432 is provided with the fur surface of the first Velcro, and the inner surface of the free end of the second strap 1433 is provided with the hook surface of the first Velcro.

[0067] Similarly, the outer surface of the free end of the third strap 1442 is overlapped with the inner surface of the free end of the fourth strap 1443 through the second Velcro. For example, the outer surface of the free end of the third strap 1442 is provided with the hook surface of the second Velcro, and the inner surface of the free end of the fourth strap 1443 is provided with the fur surface of the second Velcro; or the outer surface of the free end of the third strap 1442 is provided with the fur surface of the second Velcro, and the inner surface of the free end of the fourth strap 1443 is provided with the hook surface of the second Velcro.

[0068] The convenience of strap connection is improved by Velcro connection.

[0069] In some embodiments, the stethoscope 1 comprises: a heating cover 150 having a third opening disposed on one end side;

[0070] The bottom shell 152 and the side wall 151 of the heating cover 150 form a receiving cavity 153 for receiving the sound pickup component 110. The sound pickup component 110 is placed in or removed from the receiving cavity 153 through the third opening.

[0071] A heating portion 154 is disposed on the inner surface of the side wall 151 , and the heating portion 154 is used to heat the sound pickup component 110 when the sound pickup component 110 is received in the accommodating cavity 153 .

[0072] like Figure 4 and Figure 5 As shown, the bottom shell 152 and the third port are respectively located at two ends of the cylinder body surrounded by the side wall 151. The bottom shell 152 and the side wall 151 can be an integral structure.

[0073] Usually, the sound pickup component 110 includes at least a metal shell forming a sound pickup space and a diaphragm in the sound pickup space. During use, the sound pickup surface of the sound pickup component 110 is in close contact with the human body to pick up sound. The sound pickup surface includes a portion of the metal shell, which is in direct contact with the human body, and the human body directly senses the temperature of the metal shell.

[0074] The heating cover 150 may be disposed outside the sound pickup component 110 .

[0075] In a possible implementation, when the sound pickup component 110 is located in the accommodating cavity 153 , the sound pickup surface faces the third opening.

[0076] In a possible implementation, the heating portion 154 is used to heat the side surface of the sound pickup surface of the sound pickup component 110 .

[0077] In a possible implementation, the heating unit 154 may be powered by an external power source, such as an external battery.

[0078] In a possible implementation, the heating portion 154 is an annular heating ring disposed along the inner surface of the side wall 151 .

[0079] In a possible implementation, a mounting ring 1541 is provided between the heating portion 154 and the inner surface of the side wall 151. The mounting ring can be made of plastic or other materials to reduce heat conduction from the heating portion 154 to the side wall 151 when heating.

[0080] The sound pickup component 110 can be heated by the heating portion 154 , so that when the sound pickup component 110 contacts the human body, the touch can be improved and the discomfort can be reduced.

[0081] In some embodiments, Figure 4 and Figure 5 As shown, the heating cover 150 further includes: a push-pull rod 155;

[0082] The bottom shell 152 is provided with a through hole 1521, and the push-pull rod 155 can pass through the through hole 1521 and extend into the accommodating cavity 153, and can move along the axis direction of the through hole 1521 to push the sound pickup component 110 located in the accommodating cavity 153;

[0083] The push-pull rod 155 has at least a first position and a second position during the movement;

[0084] When the push-pull rod 155 is in the first position, the accommodating cavity 153 can accommodate the sound pickup component 110;

[0085] When the push-pull rod 155 is at the second position, the push-pull rod 155 can abut against the sound pickup component 110 to at least make the sound pickup surface of the sound pickup component 110 extend out of the accommodating cavity 153 from the third opening.

[0086] When the sound pickup component 110 is located in the accommodating cavity 153, the bottom of the sound pickup component 110 opposite to the sound pickup surface is arranged opposite to the bottom shell 152 of the heating cover 150. Therefore, the push-pull rod 155 can abut against the bottom of the sound pickup component 110. When the push-pull rod 155 is in the first position, the push-pull rod 155 can release the accommodating space to accommodate the sound pickup component 110. When the push-pull rod 155 moves from the first position to the second position, the sound pickup component 110 can be pushed to move the sound pickup component 110 toward the third opening. When the push-pull rod 155 is in the second position, at least the sound pickup surface of the sound pickup component 110 can be extended out of the accommodating cavity 153 from the third opening.

[0087] In a possible implementation, when the push-pull rod 155 is in the second position, part of the sound pickup component 110 extends out of the third opening, so that the user can directly take the sound pickup component 110 .

[0088] In a possible implementation, when the push-pull rod 155 is in the second position, the sound pickup surface extends out of the accommodating cavity 153 from the third opening, and the user can pick up sound together with the sound pickup component 110 and the heating cover 150 as a whole.

[0089] By providing the push-pull rod 155 , the sound pickup component 110 can be taken out of the heating cover 150 from the outside, thereby improving the convenience of taking out the sound pickup component 110 from the heating cover 150 .

[0090] In some embodiments, Figures 4 to 6 As shown, the push-pull rod 155 has a first limiting hole 1551 and a second limiting hole 1552 distributed along the axial direction of the push-pull rod 155 ;

[0091] The heating cover 150 further includes: a limiting plate 156 and a limiting pin 157 disposed on the outer surface of the bottom shell 152;

[0092] The limiting pin 157 penetrates the guide hole of the limiting plate 156 and moves radially along the push-pull rod 155 to cooperate with the first limiting hole 1551 or the second limiting hole 1552 to limit the push-pull rod 155 to the first position or the second position respectively.

[0093] here, Figure 6 for Figure 5 An enlarged schematic diagram of the local A area.

[0094] The guide hole is arranged along the radial direction of the push-pull rod 155, so that the limit pin 157 can move along the radial direction of the push-pull rod 155. Thus, it can be inserted into the first limit hole 1551 or the second limit hole 1552, and can also be removed from the first limit hole 1551 or the second limit hole 1552.

[0095] In this way, the push-pull rod 155 can be fixed at the first position or the second position by the limiting pin 157 without the user having to maintain the position of the push-pull rod 155 , thereby improving the convenience of operation of the push-pull rod 155 .

[0096] In some embodiments, the limit pin 157 is sleeved with an elastic component 158, the first end of the elastic component 158 ​​is connected to the limit plate 156, and the second end of the elastic component 158 ​​is connected to the limit pin 157, and the elastic component 158 ​​is used to generate an elastic force to push the limit pin 157 toward the push-pull rod 155, so that the limit pin 157 remains in the first limit hole 1551 or the second limit hole 1552.

[0097] In a possible implementation, the first end of the limiting pin 157 is used to cooperate with the first limiting hole 1551 or the second limiting hole 1552, and the second end of the limiting pin 157 is provided with a radial protrusion to prevent the second end of the limiting pin 157 from entering the guide hole. Here, the radial protrusion at the second end of the limiting pin 157 can be used as a user's hand-held portion, allowing the user to lift the limiting pin 157 to move the limiting pin 157 out of the first limiting hole 1551 or the second limiting hole 1552.

[0098] In one possible implementation, the elastic component 158 ​​may include a spring.

[0099] The limiting pin 157 may be provided with a protruding limiting portion (not shown) in the radial direction, and the elastic component 158 ​​is provided between the limiting plate 156 and the limiting portion to generate elastic force to push the first end of the limiting pin 157 toward the first limiting hole 1551 or the second limiting hole 1552 .

[0100] The elastic component 158 ​​can reduce the situation where the limiting pin 157 is separated from the first limiting hole 1551 or the second limiting hole, thereby improving the position stability of the push-pull rod 155 and facilitating the operation of the user.

[0101] In some embodiments, Figure 5 As shown, the side wall 151 is provided with a make way groove 1511 penetrating the side wall 151 , and the make way groove 1511 is used to make way for the stethoscope 130 .

[0102] Here, since the sound pickup component 110 is connected to the hearing tube 130 and the sound pickup component 110 needs to move within the accommodation space, a clearance groove 1511 can be provided on the heating cover 150 to maintain the connection between the sound pickup component 110 and the hearing tube 130, and when the sound pickup component 110 needs to move within the accommodation space, the hearing tube 130 can move within the clearance groove 1511.

[0103] In some embodiments, the earplug protection component 140 is made of antibacterial material.

[0104] In one possible implementation, the earplug protection component 140 can be prepared by mixing antibacterial materials with flexible materials such as silicone, so that the earplug protection component 140 body has an antibacterial effect and reduces secondary contamination of the earplug.

[0105] In a possible implementation, the antibacterial material may include at least one of the following: a polyolefin antibacterial material; or a polyamide antibacterial material.

[0106] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0107] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A stethoscope, characterized in that: The stethoscope comprises: a sound pickup component, two ear tubes, a hearing tube connecting the sound pickup component and the ear tubes, a first earplug and a second earplug respectively connected to the two ear tubes, and an earplug protection component; wherein, The earplug protection assembly comprises: a cylindrical protective sleeve with openings at both ends, and a buffer pad arranged in the cavity of the cylindrical protective sleeve; The buffer pad is used to separate the cavity of the cylindrical protective sleeve into a first space and a second space along the axial direction of the cylindrical protective sleeve; The first space is used to accommodate a first earplug, and the end surface of the sound outlet hole of the first earplug abuts against the first surface of the buffer pad; the second space is used to accommodate a second earplug, and the end surface of the sound outlet hole of the second earplug abuts against the second surface of the buffer pad; wherein, the first earplug enters the first space through the first opening of the tubular protective sleeve, and the second earplug enters the second space through the second opening of the tubular protective sleeve.

2. The stethoscope according to claim 1, characterized in that: The two ear tubes include: a first ear tube connected to the first earplug and a second ear tube connected to the second earplug; the earplug protection assembly also includes: a first clamping member and a second clamping member respectively disposed at the first opening and the second opening; The first clamping member is used to clamp the first ear tube so as to fix the relative position between the first ear tube and the cylindrical protective sleeve when the first earplug is stored in the first space; The second clamping member is used to clamp the second ear tube so as to fix the relative position between the second ear tube and the cylindrical protective sleeve when the second earplug is stored in the second space.

3. The stethoscope according to claim 2, characterized in that: The first clamping member comprises: a first mounting member disposed at the first opening end side and fixedly connected to the cylindrical protective sleeve, a first binding strap and a second binding strap disposed on the first mounting member, wherein the free end of the first binding strap and the free end of the second binding strap overlap each other to bind the first ear tube from the circumferential direction; The second clamping member includes: a second mounting member arranged on the second opening end side and fixedly connected to the cylindrical protective sleeve, a third strap and a fourth strap arranged on the second mounting member, wherein the free end of the third strap and the free end of the fourth strap overlap each other to bind the second ear tube circumferentially.

4. The stethoscope according to claim 3, characterized in that: The free end of the first strap and the free end of the second strap are overlapped with each other through a first Velcro; The free end of the third binding strap and the free end of the fourth binding strap are overlapped with each other through a second Velcro.

5. The stethoscope according to any one of claims 1 to 4, characterized in that: The stethoscope comprises: a heating cover having a third opening at one end side; The bottom shell and the side wall of the heating cover form a receiving cavity for receiving the sound pickup component, and the sound pickup component is placed in or removed from the receiving cavity through the third opening; A heating portion is provided on the inner surface of the side wall, and the heating portion is used to heat the sound pickup component when the sound pickup component is accommodated in the accommodating cavity.

6. The stethoscope according to claim 5, characterized in that: The heating cover also includes: a push-pull rod; The bottom shell is provided with a through hole, the push-pull rod can pass through the through hole and extend into the accommodating cavity, and can move along the axis direction of the through hole to push the sound pickup component located in the accommodating cavity; The push-pull rod has at least a first position and a second position during the movement; When the push-pull rod is in the first position, the accommodating cavity can accommodate the sound pickup component; When the push-pull rod is in the second position, the push-pull rod can abut against the sound pickup component to at least make the sound pickup surface of the sound pickup component extend out of the accommodating cavity from the third opening.

7. The stethoscope according to claim 6, characterized in that: The first limiting hole and the second limiting hole are distributed on the surface of the push-pull rod along the axial direction of the push-pull rod; The heating cover further comprises: a limit plate and a limit pin arranged on the outer surface of the bottom shell; The limiting pin penetrates the guide hole of the limiting plate and moves radially along the push-pull rod to cooperate with the first limiting hole or the second limiting hole to limit the push-pull rod to the first position or the second position respectively.

8. The stethoscope according to claim 7, characterized in that: The limit pin sleeve is provided with an elastic component, a first end of the elastic component is connected to the limit plate, and a second end of the elastic component is connected to the limit pin. The elastic component is used to generate an elastic force to push the limit pin toward the push-pull rod so that the limit pin is maintained in the first limit hole or the second limit hole.

9. The stethoscope according to claim 5, characterized in that: The side wall is provided with a making way groove penetrating the side wall, and the making way groove is used to make way for the auditory tube.

10. The stethoscope according to any one of claims 1 to 4, characterized in that: The earplug protection component is made of antibacterial material.

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