CN117653183A - Sound insulation and noise reduction stethoscope for cardiology detection - Google Patents

Abstract

The invention discloses a sound-insulating and noise-reducing stethoscope for detecting cardiology, which comprises a pair of metal frames and a conducting pipe connected to the bottom of the metal frames, wherein the tail end of the conducting pipe is connected with a pick-up head, the end part of the metal frames is integrally connected with an ear clip, an ear shield is sleeved outside the ear clip, and an elastic band is connected between the ear shields; the sound pick-up head is internally and fixedly provided with a sound pick-up drum, a cushion sleeve is sleeved around the sound pick-up drum, a first spring is arranged between the upper surface of the cushion sleeve and the inner wall of the sound pick-up head, the cushion sleeve is protruded from the sound pick-up drum under the action of the rebound force of the first spring without external force, the upper surface of the sound pick-up head is connected with a handle, and a pressing rod is connected with the handle in a pin joint mode. This application is provided with the earmuff for sound insulation and noise reduction on the stethoscope, and the earmuff is made for soft material and can laminate around human auricle, can enough keep apart external noise can not cause hard extrusion to human skin again for the ear clip of auscultation is located inside the earmuff, and the earmuff wraps up the auricle when the ear clip hangs on the auricle to stop external noise, influence the auscultation of stethoscope.

Description

Sound insulation and noise reduction stethoscope for cardiology detection

Technical Field

The invention belongs to the field of medical equipment, and particularly relates to a sound-insulation and noise-reduction stethoscope for detecting department of cardiology.

Background

In the diagnosis and treatment process of the department of cardiology, auscultation is an important tool for diagnosing heart, lung, respiratory tract and other internal diseases by doctors, has the characteristics of simple structure, low manufacturing cost, portability and the like, but in the use process of the stethoscope in the market at present, because the hospital environment is relatively noisy, the sound pick-up part has no good sound insulation function, so that the doctors cannot accurately auscultate and judge, and meanwhile, the doctors often hang the stethoscope at the neck directly when the stethoscope is not used, after diagnosis, the earpieces cannot be picked off in time, and larger noise is generated when the chest pieces collide with other articles, thereby influencing the hearing.

The stethoscope with the sound insulation and noise reduction functions for the intracardiac detection is disclosed in the Chinese patent CN215078796U, and the influence caused by the noisy surrounding environment in the auscultation process can be reduced through the earmuffs sleeved outside the ear tubes in the hearing assembly, so that the fidelity capability and the auscultation effect are improved; simultaneously under the synergistic effect of extension spring and bolt, can easily adjust the elasticity of earmuff and head, alleviateed the oppression of earplug to the ear by a wide margin, utilize blocking device in the conduction subassembly, through adjusting the plectrum, drive the base plate and rotate, thereby control sound insulation blade opens and shuts, can realize blocking of transmitting sound to chest piece one end, make the user under the condition that does not pick up the ear piece, the ear also can not receive the influence of noise, paste at chest piece surface simultaneously and have the rubber circle, effectively reduced the metal chest piece temperature and brought the stimulation for the patient, thereby cause the patient's heartbeat to accelerate to cause the misjudgement for the doctor.

The existing sound-insulating noise-reducing stethoscope is used for preventing external noise through the earmuffs, but because the auricles are not of a regular structure, the earmuffs are difficult to be tightly attached to the ears without the assistance of a fixing mechanism, so that the sound-insulating effect of the earmuffs is poor, and the earmuffs are easy to fall off from the ears.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.

In order to solve the problems, the invention adopts the following technical scheme.

A stethoscope for detecting a sound-proof and noise-reducing department of cardiology comprises a pair of metal frames and a conducting tube connected to the bottom of the metal frames, wherein the tail end of the conducting tube is connected with a pick-up head, the end part of the metal frames is integrally connected with an ear clip, an ear cover is sleeved outside the ear clip, and an elastic band is connected between the ear covers; the sound pick-up head is internally and fixedly provided with a sound pick-up drum, a cushion sleeve is sleeved around the sound pick-up drum, a first spring is arranged between the upper surface of the cushion sleeve and the inner wall of the sound pick-up head, and the cushion sleeve protrudes out of the sound pick-up drum under the action of the rebound force of the first spring without external force.

The upper surface at the pickup head is connected with the handle, and the handle is hollow structure, has pinned connection on the handle and presses the depression bar, presses and is equipped with the second spring between depression bar and the handle, presses the depression bar and is the slope setting in the handle, and its afterbody that presses the depression bar protrudes in the handle, has the pull rod at the tip pin joint of pressing the depression bar, and the terminal pin joint of its pull rod is on the pad cover.

A section of the pressing rod protruding out of the handle is provided with a sliding groove, the sliding groove is connected with a supporting block in a sliding mode, the handle is provided with a protruding block, and when the pressing rod approaches to the horizontal direction under the action of external force, the supporting block is clamped in the protruding block in the sliding groove in a sliding mode.

The pad cover is a circular structure, the height of the pad cover is larger than the thickness of the hearing drum, the silica gel pad is integrally arranged on the lower surface of the pad cover, the lifting rod is arranged on the upper surface of the pad cover, and the lifting rod is transversely inserted on the hearing drum.

The front surface of the hearing drum is covered with a metal film, the center of the rear surface of the hearing drum is integrally connected with a connector, a first through groove is formed in the connector along the central axis of the connector, and the pull rod is movably inserted in the first through groove.

A second through groove is transversely formed in the connector, the second through groove is communicated with the first through groove, the second through groove is formed in a height greater than the thickness of the connector, and the lifting rod penetrates through the second through groove to be spliced with the hearing drum.

The earmuff is soft material, and one end of earmuff is connected with the link in an organic whole, and has made the fixed band on the link, and the earmuff covers around the auricle through tightening up the fixed band when being outside the auricle makes the earmuff laminating auricle.

The fixed band includes first bandage and second bandage, has the fastener at the end connection of first bandage, and the pin joint has the card strip on the fastener, and has cup jointed the restraint cover on the first bandage activity, and a plurality of holes have been seted up to the equidistance on the second bandage, and when the second bandage passed the fastener, the card strip on the fastener passed the hole, and the restraint cover cup jointed on the coincidence section of first bandage and second bandage.

The conduction pipe comprises a branch pipe and a connecting pipe, the branch pipe and the connecting pipe are rubber pipes, a branch head is arranged on the branch pipe and connected with the bottoms of the pair of metal frames, and the tail end of the connecting pipe is connected with the pick-up head.

A connecting belt is connected between the pair of metal frame brackets, and the connecting belt is an elastic component.

Compared with the prior art, the invention has the beneficial effects that:

(1) This application is provided with the earmuff for making an uproar falls in the sound insulation on the stethoscope, and the earmuff makes to laminate around human auricle for soft material, can keep off external noise and can not lead to the fact hard extrusion to human skin again, and the ear clip for auscultation is located inside the earmuff, and the earmuff wraps up the auricle when the ear clip hangs on the auricle to stop external noise, influence the auscultation of stethoscope.

(2) Further, because the earmuff is soft material and directly laminates around the auricle, because its support degree is relatively poor in soft material, and human head is irregular, therefore the earmuff actually does not coincide completely with laminating of skin, cause the sound insulation effect relatively poor easily, therefore this application sets up the elastic cord between two ears, when the earmuff cover is on the auricle, the elastic cord can promote a pair of earmuff to the peripheral formation of auricle certain slightly extrusion to a certain extent, further be provided with the fixed band at the other end of earmuff, the fixed band comprises two bandages, flexible through the mode of use that is similar to the belt for the earmuff further slightly extrudes the auricle, thereby make the earmuff can be fine laminate with skin, simultaneously through elastic cord and fixed band, can make the stethoscope fix well and can not drop at user's head.

(3) Still further, because the earmuff laminating plays fine sound insulation noise reduction effect in the periphery of auricle, plays certain supporting role simultaneously again, therefore hang the inside ear clip of auricle and can set up relatively weak to prevent because the deep of ear clip, lead to the problem of the ear swelling and aching behind the long-time wearing of person, because fall through the earmuff sound insulation noise reduction, even consequently the ear clip is even deep into the inside length of auricle relatively weak, also can not influence auscultation effect, simultaneously can also make the ear of wearing more comfortable, reduce because ear pain leads to influencing the auscultation judgement of wearing.

(4) This application is in order to prevent that the pick-up head from bumping the noise that other article produced during not diagnosing, influence the hearing of wearer, therefore this application is provided with the pad cover on the pick-up head, the pad cover is outstanding in the overhead auditory drum of pick-up during non-use, thereby protect the auditory drum wherein, avoid the auditory drum to bump article and produce the noise to the user is amazing, and the user needs handheld pick-up head during the use, can exert a force to pressing rod in this in-process, make the pad cover retract to the pick-up head inside through a series of leverage, thereby make the auditory drum outstanding can laminate patient chest and auscultate.

(5) Further, when auscultation is carried out for a long time, if the user is more loaded down with trivial details and can produce tired to pressing the pole application pressure always, consequently this application sets up the spout on pressing the pole, sets up in the spout and supports the piece, through supporting protruding butt on piece and the handle to retrain pressing the pole and remain the state after pressing all the time, and then realized that the pad cover is in the state of retracting always, can promote after the use and support the piece reverse motion, thereby reset under the effect of second spring pressing the pole, make the pad cover outstanding again and protect the drum of listening.

Drawings

Fig. 1 is a view showing the external appearance of a stethoscope.

Fig. 2 is a structural view of a fixing strap.

Fig. 3 is a partial enlarged view of the pick-up head at a in fig. 1.

Fig. 4 is an enlarged view of a portion of the earmuff at B in fig. 1.

Fig. 5 is an overall structure view of the stethoscope.

Fig. 6 is a cross-sectional view of the sound pickup head.

Fig. 7 is an enlarged view of a portion of the stop mechanism at C in fig. 6.

Fig. 8 is a cross-sectional view of a listening drum.

Fig. 9 is an overall structure view of the cushion cover.

The correspondence between the reference numerals and the component names in the drawings is as follows:

100. a metal frame; 101. ear muffs; 101a, ear clips; 101b, elastic bands; 101c, hanging rings; 102. a fixing belt; 102a, a first strap; 102a-1, fasteners; 102a-2, a constraining sheath; 102b, a second strap; 103. a connecting belt; 200. a conductive pipe; 201. a branch pipe; 202. a connecting pipe; 300. a pick-up head; 301. a handle; 301a, pressing a rod; 301a-1, a chute; 301a-1a, a block; 301b, a pull rod; 301c, a cushion cover; 301c-1, rubber pad; 301c-2, a lifting lever; 301c-3, a first spring; 302. listening to the drum; 302a, connectors; 302a-1, a first through slot; 302a-2, a second through slot.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. The present invention provides the following examples.

Examples

Referring to fig. 1, 4 and 5, a stethoscope for detecting a heart medicine for sound insulation and noise reduction comprises a pair of metal frames 100 and a conducting tube 200 connected to the bottom of the metal frames 100, wherein the metal frames 100 are used for clamping ears of a user, further, in order to enable the metal frames 100 to have clamping force, a connecting band 103 is connected between a pair of metal frame 100 brackets, the connecting band 103 is an elastic member, the elasticity of the connecting band 103 is utilized to enable a pair of metal frames 100 to form clamping force, after being worn, the connecting band can be hung behind the ears of the user to provide certain clamping force, the conducting tube 200 is used for conducting sound, a pick-up head 300 is connected to the tail end of the conducting tube 200, the pick-up head 300 can be expanded to the chest sound to a certain extent, so that the sound can be conducted through the conducting tube 200, and then can not be dissipated, an ear clip 101a is integrally connected to the end of the metal frames 100, the ear clip 101a can be directly carried in an external auditory meatus, and noise can be reduced by the external noise, the ear clip 101a is sleeved outside the ear clip 101a, the ear clip 101a is sleeved with the elastic band, after being worn, the two auricles 101b can be directly connected to the two auricles 101b can be directly connected with the two auricles 101, and the head 101b can be directly pulled by the external cap, and the head can be prevented from being attached to the external noise by the external cap 101; the sound pick-up head 300 is internally and fixedly provided with the sound drum 302, the sound drum 302 is an important sound device in a stethoscope, the sound drum 302 is attached to the chest of a patient and is used for amplifying sound to a certain extent, in order to prevent the sound drum 302 from colliding with an object to generate larger noise during non-use, the eardrum of a wearer is damaged, the sound drum 302 is sleeved with the pad 301c, the first spring 301c-3 is arranged between the upper surface of the pad 301c and the inner wall of the sound pick-up head 300, and the pad 301c is protruded from the sound drum 302 under the action of the rebound force of the first spring 301c-3 without external force, so that the sound pick-up head 300 can play a buffering role when colliding with the object.

In this embodiment: for sound insulation and noise reduction, the ear cover 101 is arranged on the stethoscope, the ear cover 101 is made of soft materials and can be attached to the periphery of the auricle of a human body, external noise can be isolated, hard extrusion can not be caused to the skin of the human body, the ear clip 101a for auscultation is positioned in the ear cover, and when the ear clip 101a is hung on the auricle, the ear cover 101 wraps the auricle so as to prevent external noise and influence auscultation of the stethoscope.

In fig. 3 and 6, since the auditory drum 302 is attached to the chest of the patient during auscultation, the pad 301c needs to be retracted to expose the auditory drum 302 during auscultation, and therefore, a lever mechanism is needed to control the pad 301c to retract into the pick-up head 300, and therefore, the handle 301 is connected to the upper surface of the pick-up head 300, the handle 301 is of a hollow structure, the pressing rod 301a is pinned to the handle 301, a second spring is arranged between the pressing rod 301a and the handle 301, the pressing rod 301a is arranged in an inclined manner in the handle 301, the tail part of the pressing rod 301a protrudes from the handle 301, the end part of the pressing rod 301a is pinned to the pull rod 301b, the tail end of the pull rod 301b is pinned to the pad 301c, the handle 301a is held by hand in use, and the pressing rod 301a is pinned to form a lever after pressing, so that the end part of the pressing rod 301a lifts, when the end part of the pressing rod 301a lifts, the pulling rod 301b is pulled upwards, and the pull rod b is further pulled to retract into the pad 301c to expose the auditory drum 302; further, when auscultation is performed for a long time, if the pressure ratio of the pressing rod 301a is always applied to the user, the user is more complicated and fatigued, so that the user is provided with a locking mechanism which can lock after the cushion 301c is retracted, so that the cushion 301c is always kept in a retracted state, specifically, a section of the pressing rod 301a protruding from the handle 301 is provided with a sliding groove 301a-1a, the sliding groove 301a-1a is connected with the sliding groove 301a-1 in a sliding manner, a bump is arranged on the handle 301, when the pressing rod 301a is approaching to a horizontal state due to external force, the pressing rod 301a-1a slides in the bump in the sliding groove 301a-1, after the pressing rod 301a-1a is abutted with the bump on the handle 301, the pressing rod 301a is restrained to be always kept in a pressed state, and then the cushion 301c is always kept in a retracted state, after the user can push the pressing rod 301a-1a to reversely move in the sliding groove 301a-1, so that the pressing rod 301a is reset under the action of a second spring, and the cushion 301a is again protected against the drum 302.

In fig. 9, the pad 301c is of a ring-shaped structure, and the height of the pad is greater than the thickness of the listening drum 302, so that the pad 301c can completely encircle the listening drum 302, thereby achieving the overall protection of the listening drum 302, and further, in order to effectively absorb sound when the pickup head 300 collides, a silica gel pad is integrally arranged on the lower surface of the pad 301c, and the silica gel pad is soft and has a good buffering and sound absorbing effect after the collision.

In fig. 8 and 9, the auditory drum 302 is a hollow structure, the front surface of which is covered with a metal film, the structure is an existing structure, which has the function of enlarging the sound transmitted to the thoracic cavity of the auditory drum 302, the center of the rear surface of the auditory drum 302 is integrally connected with a connector 302a, the sound emitted in the thoracic cavity is transmitted to the conductive pipe 200 through the connector 302a after being enlarged to a certain extent by the auditory drum 302, the loss of the sound during transmission is reduced as much as possible by the connector 302a by utilizing the principle of better fixed conduction effect, further, because the inner space of the pickup head 300 is limited, and the pad 301c and the auditory drum 302 are required to be installed in the pickup head 300, the unavoidable occupied space of the pad 301c and the auditory drum 302 is overlapped, and in order to enable the pad 301c and the auditory drum 302 to be adapted, and the installation space is not conflicted, simultaneously, the cushion cover 301c can be stretched and contracted and the auditory drum 302 can effectively conduct sound, the first through groove 302a-1 is formed in the connector 302a along the middle axis of the cushion cover, the pull rod 301b is movably inserted into the first through groove 302a-1, the second through groove 302a-2 is transversely formed in the connector 302a, the second through groove 302a-2 is communicated with the first through groove 302a-1, the lifting rod 301c-2 penetrates through the second through groove 302a-2 and is inserted into the auditory drum 302, the lifting rod 301c-2 is arranged on the upper surface of the cushion cover 301c, the lifting rod 301c-2 is transversely inserted into the auditory drum 302, the cushion cover 301c is connected with the pull rod 301b in the prior art through the lifting rod 301c-2, and because the installation position of the cushion cover 301c and the connector 302a coincides, the second through groove 302a-2 is formed in the connector 302a for the lifting rod 301c-2 to penetrate through, meanwhile, in order to avoid the expanded sound of the auditory drum 302 from being transmitted back to the lifting rod 301c-2 after being transmitted to the connector 302a, the lifting rod 301c-2 is not contacted with the connecting head 302a, so that the second through groove 302a-2 is opened to a height larger than the thickness of the connecting head 302a, the lifting rod 301c-2 is not contacted with the inner wall of the second through groove 302a-2 after penetrating through the second through groove 302a-2, a certain space is reserved for the lifting rod 301c-2 to ascend, the lifting rod 301b is driven by the pressing rod 301a to ascend, so that the lifting rod 301c-2 cannot collide, the lifting rod 301c-2 ascends to contact the inner wall of the second through groove 302a-2, further, the lifting of the lifting rod 301c-2 is completed through the lifting rod 301b, the first through groove 302a-1 is opened on the connecting head 302a along the central axis, the lifting rod 301b is movably inserted into the first through groove 302a-1 to be communicated with the second through groove 302a-2, the lifting rod 301b penetrates through the first through groove 302a-1 to be connected with the lifting rod 301c-2, and the lifting rod 301b can be prevented from contacting the inner wall of the first through groove 302 a-2.

In fig. 4, since the ear muff 101 is made of soft material and is directly attached to the periphery of the auricle, the ear muff 101 cannot be well attached to the skin, and the sound insulation effect is poor easily, therefore, a fixing component is required to be additionally arranged on the ear muff 101 to restrain the ear muff 101, therefore, one end of the ear muff 101 is integrally connected with a hanging ring 101c, a fixing belt 102 is sewn on the hanging ring 101c, the ear muff 101 is attached to the periphery of the auricle by tightening the fixing belt 102 when the ear muff 101 is covered outside the auricle, the fixing belt 102 stretches and contracts in a belt-like use mode, so that the ear muff 101 can be well attached to the skin, and meanwhile, the stethoscope can be well fixed on the head of a user through an elastic belt 101b and the fixing belt 102; further, the fixing band 102 includes a first strap 102a and a second strap 102b, the end of the first strap 102a is connected with a fastener 102a-1, the fastener 102a-1 is pinned with a clamping strip, the first strap 102a is movably sleeved with a constraining sleeve 102a-2, the second strap 102b is equidistantly provided with a plurality of holes, when the second strap 102b passes through the fastener 102a-1, the clamping strip on the fastener 102a-1 passes through the holes, the constraining sleeve 102a-2 is sleeved on the overlapping section of the first strap 102a and the second strap 102b, when a user wears the stethoscope in the application, two earmuffs 101 are covered outside auricles, as one end of the earmuffs 101 is provided with an elastic band 101b, a certain constraint can be carried out on the earmuffs 101 at first, and the material of the elastic band 101b can also be used by users with different cranium widths, then the first strap 102a and the second strap 102b are passed through the holes, the second strap 102b passes through the fastener 102a-1, the overlapping section of the fastening strip 102a-1 is sleeved on the fastener 102a-1, and the second strap 102b is prevented from being passed through the overlapping section of the strap 102b, thereby preventing the overlapping section from being stretched out by the second strap 102 b.

In fig. 1 and 5, the conductive pipe 100 includes a branched pipe 201 and a connecting pipe 202, the branched pipe 201 and the connecting pipe 202 are rubber pipes, and a branched head is arranged on the branched pipe 201 to be connected with the bottom of the pair of metal frames 100, and the tail end of the connecting pipe 202 is connected with a pick-up head 300, which is a prior art, and is disclosed in the present application for making the technical scheme complete, and the creativity and improvement of the present application are not affected.

To sum up: the stethoscope in the application can reduce the influence of external noise on a user to a certain extent on one hand, plays a role in sound insulation and noise reduction through the arranged earmuff 101, and on the other hand, the cushion sleeve 301c is used for protecting the auditory drum 302, firstly, the damage of the auditory drum 302 in the pickup head 300 after the pickup head 300 impacts an object can be avoided, meanwhile, the noise generated when the pickup head 300 impacts the object can be reduced, the impact noise is prevented from being directly transmitted to the ear of the user through the auditory drum 302 and the conductive pipe to cause the damage of the eardrum, when the stethoscope is used, the two earmuffs 101 are directly covered outside auricles, at the moment, the ear clamp 101a positioned in the earmuff 101 is inserted in the external auditory meatus of the user, the connecting belt 103 is connected between the pair of metal brackets 100, the connecting belt 103 is an elastic member, and the clamping force is formed between the pair of metal brackets 100 by using the elasticity of the connecting belt 103, the ear cover 101 can be hung on the ear of a user to provide certain clamping force after being worn, and further because one end of the ear cover 101 is provided with the elastic band 101b, certain constraint can be firstly carried out on the ear cover 101, and the material of the elastic band 101b can also be used for users with different cranium widths, then the first binding band 102a and the second binding band 102b are overlapped, so that the second binding band 102b passes through the fastener 102a-1, the clamping strip arranged on the fastener 102a-1 passes through the hole formed on the second binding band 102b, thereby completing the fixation between the first binding band 102a and the second binding band 102b, the part of the second binding band 102b extends out is sleeved by the constraint sleeve 102a-2 to prevent sagging, at the moment, the ear cover 101 is attached to the periphery of an auricle, thereby preventing the auricle from receiving external noise, playing a good sound insulation effect due to the fact that the ear cover 101 is attached to the periphery of the auricle, meanwhile playing a certain supporting role, therefore, the ear clip 101a hung in the auricle can be relatively short, so that the problem that the ear of a wearer is swollen and ache after wearing the ear clip 101a for a long time is prevented, and the auscultation effect is not affected even if the length of the ear clip 101a which is penetrated into the auricle is relatively short due to the sound insulation and noise reduction of the ear cover 101, and meanwhile, the ear of the wearer is more comfortable, and the auscultation judgment of the wearer is reduced due to the ear pain; when auscultation is carried out, the auditory drum 302 is attached to the chest of a patient, so that the pad sleeve 301c needs to be retracted to expose the auditory drum 302 during auscultation, a lever mechanism is needed to control the pad sleeve 301c to retract into the pickup head 300, meanwhile, in order to facilitate holding for a while, an installation space is provided for a lever mechanism, a handle 301 is arranged on the pickup head 300, when the user holds the handle 301 in a holding manner, and presses the pressing rod 301a, as the pressing rod 301a is pinned in the handle 301, a lever is formed after pressing, the end part of the pressing rod 301a is tilted, when the end part of the pressing rod 301a is tilted, the pull rod 301b is pulled by pulling force to move upwards, and the pad sleeve 301c is further driven to retract into the pickup head 300 to expose the auditory drum 302; further, when auscultation is performed for a long time, if the pressure ratio of the pressing rod 301a is always applied to the user, the user is more complicated and fatigued, so that the user is provided with a locking mechanism which can lock after the cushion 301c is retracted, so that the cushion 301c is always kept in a retracted state, specifically, a section of the pressing rod 301a protruding from the handle 301 is provided with a sliding groove 301a-1a, the sliding groove 301a-1a is connected with the sliding groove 301a-1 in a sliding manner, a bump is arranged on the handle 301, when the pressing rod 301a is approaching to a horizontal state due to external force, the pressing rod 301a-1a slides in the bump in the sliding groove 301a-1, after the pressing rod 301a-1a is abutted with the bump on the handle 301, the pressing rod 301a is restrained to be always kept in a pressed state, and then the cushion 301c is always kept in a retracted state, after the user can push the pressing rod 301a-1a to reversely move in the sliding groove 301a-1, so that the pressing rod 301a is reset under the action of a second spring, and the cushion 301a is again protected against the drum 302.

The foregoing is a further elaboration of the present invention in connection with the detailed description, and it is not intended that the invention be limited to the specific embodiments shown, but rather that a number of simple deductions or substitutions be made by one of ordinary skill in the art without departing from the spirit of the invention, should be considered as falling within the scope of the invention as defined in the appended claims.

Claims (10)

1. A stethoscope for detecting heart internal medicine with sound insulation and noise reduction comprises a pair of metal frames (100) and a conducting tube (200) connected to the bottom of the metal frames (100), wherein the tail end of the conducting tube (200) is connected with a pickup head (300),

the method is characterized in that: an ear clip (101 a) is integrally connected to the end part of the metal frame (100), an ear cover (101) is sleeved outside the ear clip (101 a), and an elastic band (101 b) is connected between the ear covers (101);

an auditory drum (302) is fixedly arranged in the pickup head (300), a cushion sleeve (301 c) is sleeved around the auditory drum (302), a first spring (301 c-3) is arranged between the upper surface of the cushion sleeve (301 c) and the inner wall of the pickup head (300), and the cushion sleeve (301 c) protrudes out of the auditory drum (302) under the action of the rebound force of the first spring (301 c-3) without external force.

2. The sound-insulating and noise-reducing stethoscope for cardiology detection according to claim 1, characterized in that: the pick-up head is characterized in that a handle (301) is connected to the upper surface of the pick-up head (300), the handle (301) is of a hollow structure, a pressing rod (301 a) is connected to the handle (301) in a pin joint mode, a second spring is arranged between the pressing rod (301 a) and the handle (301), the pressing rod (301 a) is obliquely arranged in the handle (301), the tail portion of the pressing rod (301 a) protrudes out of the handle (301), a pull rod (301 b) is connected to the end portion of the pressing rod (301 a) in a pin joint mode, and the tail end of the pull rod (301 b) is connected to the cushion sleeve (301 c) in a pin joint mode.

3. The sound-insulating and noise-reducing stethoscope for cardiology detection according to claim 2, characterized in that: a section of the pressing rod (301 a) protruding out of the handle (301) is provided with a sliding groove (301 a-1), a supporting block (301 a-1 a) is connected in a sliding mode in the sliding groove (301 a-1), a protruding block is arranged on the handle (301), and when the pressing rod (301 a) approaches to the horizontal state under the action of external force, the supporting block (301 a-1 a) is clamped in the protruding block in the sliding groove (301 a-1) in a sliding mode.

4. A sound-insulating and noise-reducing stethoscope for cardiology detection according to claim 3, characterized in that: the pad sleeve (301 c) is of a circular ring structure, the height of the pad sleeve is larger than the thickness of the auditory drum (302), a silica gel pad is integrally arranged on the lower surface of the pad sleeve (301 c), a lifting rod (301 c-2) is arranged on the upper surface of the pad sleeve (301 c), and the lifting rod (301 c-2) is transversely inserted on the auditory drum (302).

5. The sound-insulating and noise-reducing stethoscope for cardiology detection of claim 4, wherein: the hearing drum (302) is of a hollow structure, the front surface of the hearing drum is covered with a metal film, a connector (302 a) is integrally connected to the center of the rear surface of the hearing drum (302), a first through groove (302 a-1) is formed in the connector (302 a) along the central axis of the connector, and a pull rod (301 b) is movably inserted into the first through groove (302 a-1).

6. The sound-insulating and noise-reducing stethoscope for cardiology detection of claim 5, wherein: a second through groove (302 a-2) is transversely formed in the connector (302 a), the second through groove (302 a-2) is communicated with the first through groove (302 a-1), the second through groove (302 a-2) is formed in a height greater than the thickness of the connector (302 a), and the lifting rod (301 c-2) penetrates through the second through groove (302 a-2) to be spliced with the auditory drum (302).

7. The sound-insulating and noise-reducing stethoscope for cardiology detection according to claim 1, characterized in that: the earmuff (101) is made of soft materials, one end of the earmuff (101) is integrally connected with a hanging ring (101 c), a fixing belt (102) is sewn on the hanging ring (101 c), and the earmuff (101) is attached to the periphery of an auricle by tightening the fixing belt (102) when the earmuff (101) covers the auricle.

8. The sound-insulating and noise-reducing stethoscope for cardiology detection of claim 7, wherein: the fixing strap (102) comprises a first strap (102 a) and a second strap (102 b), a fastener (102 a-1) is connected to the end portion of the first strap (102 a), a clamping strip is connected to the fastener (102 a-1) in a pin joint mode, a restraining sleeve (102 a-2) is movably sleeved on the first strap (102 a), a plurality of holes are formed in the second strap (102 b) at equal intervals, when the second strap (102 b) passes through the fastener (102 a-1), the clamping strip on the fastener (102 a-1) passes through the holes, and a restraining sleeve (102 a-2) is sleeved on the overlapped section of the first strap (102 a) and the second strap (102 b).

9. The sound-insulating and noise-reducing stethoscope for cardiology detection according to claim 1, characterized in that: the conduction pipe (100) comprises a branch pipe (201) and a connecting pipe (202), wherein the branch pipe (201) and the connecting pipe (202) are rubber tubes, a branch head is arranged on the branch pipe (201) and connected with the bottoms of the pair of metal frames (100), and the tail end of the connecting pipe (202) is connected with the pickup head (300).

10. The sound-insulating and noise-reducing stethoscope for cardiology detection according to claim 1, characterized in that: a connecting belt (103) is connected between the pair of metal frame (100) brackets, and the connecting belt (103) is an elastic member.