CN115969407A - Positionable examination auscultation equipment - Google Patents

Abstract

The invention relates to the technical field of auscultation equipment, in particular to a positioning type examination auscultation equipment, which comprises a pickup head, wherein a sound guide pipe is fixedly arranged on the pickup head and used for collecting and transmitting sound; the positioning mechanism is used for fixing the sound pickup head on the skin of a human body; the adjusting mechanism is arranged between the positioning mechanism and the sound pick-up head and used for adjusting the position of the sound pick-up head; and the control mechanism is arranged on the positioning mechanism and used for controlling the gas pressure inside the positioning mechanism. This but locate mode inspection auscultation equipment through setting up positioning mechanism, can fix the pick-up head on patient's skin, during the use, and the doctor only needs the headset to hang and can pay attention to the condition that patient's internal organs are beated constantly, need not to tightly hold the pick-up head with the hand for the doctor also can pay attention to patient's internal organs condition of beating constantly in emergency treatment, strives for the valuable time for salvaging the patient.

Description

A positionable examination and auscultation equipment

technical field

The invention relates to the technical field of auscultation equipment, in particular to a positionable inspection and auscultation equipment.

Background technique

Auscultation equipment is one of the inspection devices commonly used by physicians. Using auscultation equipment, various examinations such as heart sounds, lung sounds, and bowel sounds can be performed. Among them, the heart sound refers to the heart sound signal composed of the systolic and diastolic movements of the heart, the opening and closing of valves, and noise signals under abnormal conditions. Through heart sound auscultation, the opening and closing status of heart valves can be preliminarily judged, so as to make a preliminary diagnosis of heart diseases such as valvular heart disease. Auscultation equipment is mainly composed of sound pickup part (chest piece), conduction part (rubber tube) and listening part (earpiece).

When traditional auscultation equipment is in use, the doctor needs to wear ear hooks and free one hand to hold the auscultation head tightly, and place the auscultation head on the patient's chest to listen to the sound of the viscera. During the whole auscultation process , one hand of the doctor cannot leave the stethoscope head, which makes it impossible for the doctor to free up the extra hand to perform other examinations and treatments on the patient; When the situation requires emergency examination, if the traditional stethoscope is used, it will not only consume too much energy for the doctor, but also cause the doctor to be unable to take care of organ auscultation and other examinations and treatments at the same time, reducing the efficiency of the doctor's examination and treatment, resulting in a waste of time. Waste, what's more, it will cause delay in the rescue of patients. In view of this, we propose a positionable inspection and auscultation equipment.

Contents of the invention

The object of the present invention is to provide a positionable examination and auscultation equipment, which solves the problems in the background technology.

To achieve the above object, the present invention provides the following technical solutions:

A positionable inspection and auscultation equipment, including a pickup head, a sound guide tube is fixedly installed on the pickup head for collecting and transmitting sound;

positioning mechanism, in order to fix the pickup head on the human skin;

An adjustment mechanism, the adjustment mechanism is arranged between the positioning mechanism and the pickup head to adjust the position of the pickup head;

And a control mechanism, the control mechanism is arranged on the positioning mechanism to control the gas pressure inside the positioning mechanism.

Preferably, the positioning mechanism includes a fixed frame, the pickup is located in the fixed frame, the bottom of the fixed frame is fixedly connected with a pad, and the bottom of the pickup is connected to the top of the pad. contact, the bottom of the fixed frame is provided with four suction ports, the inside of the fixed frame is provided with a connecting cavity, and the four suction ports are all connected with the connecting cavity, and the surface of the fixed frame is provided with a suction hole , one end of the air extraction hole communicates with the connection chamber.

Preferably, the adjustment mechanism includes a rotating frame, the rotating frame is rotatably mounted on the inner wall of the fixed frame, the inner wall of the rotating frame is respectively provided with a first magnetic block and a second magnetic block, the first magnetic block A magnetic block and the second magnetic block are symmetrically distributed with the center line of the rotating frame as the axis of symmetry, and the surface of the pickup head is fixedly connected with a magnetic ring, and the magnetic ring is opposite to the first magnetic block. The side magnetic poles are opposite, and the magnetic poles of the side of the magnetic ring opposite to the second magnetic block are opposite.

Preferably, the surface of the first magnetic block is fixedly connected with the inner wall of the rotating frame, the surface of the second magnetic block is rotationally connected with the inner wall of the rotating frame, and the top of the second magnetic block is fixedly connected with A connecting rod, the top end of the connecting rod passes through the rotating frame and is fixedly connected with a torque.

Preferably, the control mechanism includes an external seat, the surface of the external seat is fixedly connected to the surface of the fixed frame, an air storage chamber is opened inside the external seat, and the inner wall of the air storage chamber is connected to a piston There is an air extraction plug, and a connection hole is opened on the side of the external connection seat close to the external connection seat. One end of the connection hole communicates with the air storage cavity, and the other end of the connection hole is far away from the air extraction hole. One end of the connection cavity is connected.

Preferably, the control mechanism further includes a shaft, the surface of the shaft is rotatably connected to the inner wall of the outer seat, the surface of the shaft is fixedly connected with a rotating column, and the surface of the rotating column is fixedly connected with A screw rod, the surface of the screw rod is spirally driven with a drive block, the inner wall of the outer connection seat is fixedly connected with a limit rod, the inner wall of the drive block is slidably connected with the surface of the limit rod, and the drive block The surface is fixedly connected with the inner wall of the suction plug.

Preferably, the surface of the shaft is fixedly connected with a gear, the surface of the gear is meshed with a rack, the surface of the rack is slidingly connected with the inner wall of the outer socket, and the rack is far away from the fixed frame. One end is fixedly connected with a pressing plate, the surface of the external connection seat is provided with a vent hole, the surface of the shaft rod is elastically connected with the inner wall of the external connection seat through a scroll spring, and a limit assembly is arranged on the external connection seat for Limits the circular motion of the shaft.

Preferably, the limit assembly includes a mounting shell, the surface of the mounting shell is fixedly connected to the surface of the external seat, an insertion rod is slidably connected to the inner wall of the mounting shell, and one end of the shaft is fixedly connected There is a turntable, one end of the insertion rod is plugged into the turntable, the other end of the insertion rod passes through the installation shell and is fixedly connected with a toggle plate, the surface of the toggle plate is connected to the Surface elastic connection of mounting shells.

Preferably, a baffle is fixedly connected to the top of the pickup head, the top of the baffle is in contact with the top wall inside the rotating frame, and a groove is opened on the surface of the baffle.

By means of the above technical solution, the present invention provides a positionable examination and auscultation equipment. At least have the following beneficial effects:

(1) The positionable inspection and auscultation equipment can fix the pickup head on the patient's skin by setting a positioning mechanism. When in use, the doctor only needs to wear ear hooks to keep an eye on the beating of the patient's organs. Hold the pickup head tightly with your hands, so that the doctor can free up his hands to perform other examinations and treatments on the patient, so that the doctor can always pay attention to the beating of the patient's organs during emergency treatment, and win valuable time for rescuing the patient.

(2), the positionable inspection and auscultation equipment, by setting the adjustment mechanism, can adjust the position of the pickup in the positioning mechanism, so that the pickup can pick up the sound from the viscera more accurately. , it is not necessary to remove the positioning mechanism from the patient's skin, thereby improving the efficiency of adjustment and auscultation, and reducing the waste of time.

(3) The positionable inspection and auscultation equipment can control the gas pressure inside the positioning mechanism by setting the control mechanism, and use the negative pressure to adsorb the fixed frame on the human skin. When the control mechanism is in use, it only needs to press two Only one pressing plate is enough, the operation is simple to use, and the waste of time is effectively avoided.

(4) The positionable inspection and auscultation equipment can automatically limit the shaft rod by setting the limit component, so that the suction plug will not move randomly due to the change of air pressure, ensuring the stability of negative pressure adsorption , the limit mechanism can realize automatic limit without manual operation, further reducing time consumption.

Description of drawings

The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a sectional view of the overall structure of the present invention;

Fig. 3 is a schematic diagram of positioning mechanism in the present invention;

Fig. 4 is a schematic diagram of a control mechanism in the present invention;

Fig. 5 is a schematic diagram of a scroll spring in the present invention;

Fig. 6 is a schematic diagram of the limiting assembly in the present invention;

Fig. 7 is a schematic diagram of a drive block in the present invention;

Fig. 8 is a schematic diagram of the baffle in the present invention.

In the figure: 1. Pickup head; 2. Positioning mechanism; 21. Fixed frame; 22. Liner; 23. Adsorption port; 24. Air extraction hole; 25. Connecting cavity; , the first magnetic block; 33, the magnetic ring; 34, the second magnetic block; 35, the connecting rod; 36, the twist; 4, the control mechanism; 41, the external seat; 42, the connecting hole; 43, the limit assembly; 431 , mounting shell; 432, turntable; 433, inserting rod; 434, return spring; 435, toggle plate; 44, air storage cavity; 45, air extraction plug; 46, driving block; 47, rotating column; 48, shaft ; 49, gear; 410, rack; 411, screw rod; 412, limit rod; 413, pressure plate; 414, air hole; 415, scroll spring; 5, baffle plate; 6, groove; 7, sound guide Tube.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1-shown in Fig. 8, a kind of technical solution provided by the present invention:

A positionable inspection and auscultation equipment, including a pickup head 1, that is, an auscultation head, used to collect and amplify sounds from the heart, lungs, arteries, veins and other internal organs, and the pickup head 1 is fixedly installed There is a sound guide tube 7 for transmitting sound, and the end of the sound guide tube 7 away from the pickup head 1 is fixedly connected with an earhook for listening to the sound. When using traditional auscultation equipment, the doctor needs to wear ear hooks, hold the auscultation head tightly with one hand, and place the auscultation head on the patient's chest to listen to the sound of the viscera. During the whole auscultation process, the doctor's Inability to leave the stethoscope head with one hand prevents it from taking care of other treatments. The auscultation equipment is equipped with a positioning mechanism 2, which is used to fix the pickup head 1 on the human skin. Therefore, the doctor only needs to wear ear hooks to keep an eye on the beating of the patient's organs, so that the doctor can free up his hands to do other things. Things; the adjustment mechanism 3, the adjustment mechanism 3 is arranged between the positioning mechanism 2 and the pickup head 1, in order to adjust the position of the pickup head 1, so that the pickup head 1 can more accurately pick up the sound from the viscera; and The control mechanism 4, the control mechanism 4 is arranged on the positioning mechanism 2, in order to control the gas pressure inside the positioning mechanism 2, so that the bottom of the positioning mechanism 2 can generate negative pressure, so that it can be adsorbed on the surface of the human skin, the number of the control mechanism 4 is two One, the two control mechanisms 4 are symmetrically distributed with the central line of the fixed frame 21 as the axis of symmetry, so that the effect on gas extraction is better.

In the present embodiment, the positioning mechanism 2 includes a fixed frame 21, the pickup head 1 is located in the fixed frame 21, the bottom of the fixed frame 21 is fixedly connected with a pad 22, and the bottom of the pickup head 1 is in contact with the top of the pad 22, The liner 22 is made of soft material, so that the bottom of the pickup head 1 can better fit the human body, and also enables the pickup head 1 to pick up the sound more clearly. The bottom of the fixed frame 21 is provided with four suction ports 23. The four adsorption ports 23 are distributed in a circular array around the axis of the fixed frame 21. In order to improve the adsorption effect, the number of the adsorption ports 23 can also be set more. The interior of the fixed frame 21 is provided with a connecting cavity 25. The four suction ports 23 are all in communication with the connection cavity 25 , and the surface of the fixed frame 21 is provided with an air extraction hole 24 , and one end of the air extraction hole 24 is in communication with the connection cavity 25 .

Further, the control mechanism 4 includes an external connection seat 41, the surface of the external connection seat 41 is fixedly connected with the surface of the fixed frame 21, an air storage chamber 44 is opened inside the external connection seat 41, and two pistons are connected to the inner wall of the air storage chamber 44. A pumping plug 45, two pumping plugs 45 are symmetrically distributed to the center line of the external seat 41, and when the two pumping plugs 45 are moved to both sides of the external seat 41 at the same time, the cavity between the two will be increase, so that external air can be sucked into the cavity between the two, the side of the outer connection seat 41 close to the outer connection seat 41 is provided with a connection hole 42, the connection hole 42 is located between the two suction plugs 45, One end of the connection hole 42 communicates with the gas storage chamber 44, and the other end of the connection hole 42 communicates with the end of the suction hole 24 away from the connection chamber 25, so that the gas in the connection chamber 25 and the adsorption port 23 can be drawn out, so that the gas in the adsorption port 23 Negative pressure environment is present, so that the fixed frame 21 is adsorbed on the human skin, the inner wall of the external connection seat 41 is rotatably connected with a shaft 48, the surface of the shaft 48 is fixedly connected with a rotating column 47, and the surface of the rotating column 47 is fixedly connected with a screw rod 411, the surface screw transmission of screw rod 411 has driving block 46, is fixedly connected with limiting rod 412 on the inner wall of external connection seat 41, and the inner wall of driving block 46 is connected with the surface sliding of limiting rod 412, and the surface of driving block 46 is connected with the exhaust gas. The inner wall of the plug 45 is fixedly connected, as shown in Figure 7, the driving block 46 is provided with a helical groove, the shape of the helical groove coincides with the screw rod 411, when the screw rod 411 rotates, because the driving block 46 is pushed by the limit rod 412 The position-limiting effect makes it unable to rotate, causing it to move along the axial direction of the rotating column 47, and drives the air pumping plug 45 to perform piston movement in the air storage chamber 44 to realize air extraction and air delivery. The gas hole 414 makes the gas on one side of the pumping plug 45 communicate with the outside, and when the pumping plug 45 performs piston movement, the gas on one side can be discharged from the device or sucked into the device, thereby reducing its piston movement The surface of the shaft 48 is fixedly connected with a gear 49, the surface of the gear 49 is meshed with a rack 410, the surface of the rack 410 is slidingly connected with the inner wall of the external seat 41, and the end of the rack 410 away from the fixed frame 21 is fixedly connected There is a pressing plate 413, the surface of the pressing plate 413 is slidingly connected with the inner wall of the external seat 41, and the pressing plate 413 is pushed in the external seat 41 to drive the rack 410 to move. The rotation of the rod 48 provides power, and the limiting plate is fixedly connected to the pressing plate 413, and the surface of the limiting plate is slidingly connected with the inner wall of the external seat 41, so that the pressing plate 413 can be supported and limited, making the use of the pressing plate 413 more stable , the surface of the shaft 48 is elastically connected to the inner wall of the outer seat 41 through the scroll spring 415, and the limit assembly 43 is arranged on the outer seat 41 to limit the circular movement of the shaft 48. By setting the scroll spring 415, the limit After the limiting effect of the component 43 on the shaft rod 48 is removed, the shaft rod 48 can automatically reset under the elastic force, and drive the gear 49, the rack 410, the rotating column 47, the screw rod 411, the driving block 46 and the air extraction plug 45 together. reset.

As shown in Figure 6, the limit assembly 43 includes a mounting shell 431, the surface of the mounting shell 431 is fixedly connected with the surface of the external seat 41, the inner wall of the mounting shell 431 is slidingly connected with an insertion rod 433, and one end of the shaft rod 48 is fixedly connected There is a turntable 432, and a slot is provided on the surface of the turntable 432, and one end of the insertion rod 433 is inserted into the slot on the turntable 432, and one side edge of the slot is an arc surface, and the insertion rod 433 is close to one side of the arc surface. The side is also provided with an arc surface, thereby the rotation direction of the turntable 432 can be limited, when the turntable 432 rotates forward, the insertion rod 433 can be pushed to one side through the two arc surfaces to realize the purpose of automatically giving way, when the turntable 432 After one rotation, the insertion rod 433 will automatically enter the slot, and at the same time, the turntable 432 cannot be rotated in the opposite direction, so as to achieve the purpose of position limitation. , the surface of the toggle plate 435 is elastically connected to the surface of the installation shell 431 through the return spring 434, and by pulling the toggle plate 435 outward, the insertion rod 433 can be driven to move to one side, so that the insertion rod 433 is disengaged from the slot, In order to release its limiting effect on the turntable 432, the turntable 432 can rotate in reverse, so that the shaft 48 can be reset.

In this embodiment, the adjustment mechanism 3 includes a rotating frame 31, which is rotatably mounted on the inner wall of the fixed frame 21, and the distance between the rotating frame 31 and the fixed frame 21 can be limited by existing technologies such as bearings, limit rings, etc. The position is not repeated here. The inner wall of the rotating frame 31 is fixedly connected with the first magnetic block 32, and the inner wall of the rotating frame 31 is rotatably connected with the second magnetic block 34. The first magnetic block 32 and the second magnetic block 34 The center line of the rotating frame 31 is a symmetrical distribution of the axis of symmetry, and the surface of the pickup head 1 is fixedly connected with a magnetic ring 33, and the magnetic ring 33 is opposite to the opposite side magnetic pole of the first magnetic block 32, and the magnetic ring 33 is opposite to the second magnetic block. The opposite side magnetic poles of the block 34 are opposite, and the top of the second magnetic block 34 is fixedly connected with a connecting rod 35, and the top of the connecting rod 35 runs through the rotating frame 31 and is fixedly connected with a turning knob 36. By rotating the turning knob 36, the connecting rod 35 can be driven. Rotate, so that the second magnetic block 34 rotates, when the second magnetic block 34 rotates one hundred and eighty degrees, its side opposite to the magnetic ring 33 is magnetically opposite, and the magnetic ring 33 can be attracted. At this time, by rotating Turning the frame 31 can drive the second magnetic block 34 and the magnetic ring 33 to rotate together, so as to realize the purpose of adjusting the position of the pickup head 1 .

The top of pickup 1 is fixedly connected with baffle 5, and the top of baffle 5 is in contact with the top wall inside rotating frame 31, thereby the pickup 1 can be limited, avoiding pickup 1 from tilting, baffle 5 There is a groove 6 on the surface of the surface. When the pickup head 1 moves to the second magnetic block 34 side, the sound guide tube 7 can enter the groove 6, so that the sound guide tube 7 can better follow the pickup head 1 move together.

Working principle, in some emergency situations, such as in an ambulance, during accident scene treatment, or emergency inspection, the doctor can place the fixed frame 21 on the patient's skin so that the pad 22 at the bottom of the fixed frame 21 is close to the skin, and then Press the two pressing plates 413 inward at the same time, and the pressing plates 413 will drive the rack 410 to move synchronously during the movement. The rack 410 drives the gear 49 to rotate for one revolution through meshing, and the gear 49 drives the shaft 48 to rotate for one revolution. The shaft 48 simultaneously Drive the two rotating columns 47 to rotate, and the rotating column 47 drives the screw rod 411 to rotate. The axial direction moves to the outside of the outer connection seat 41, and drives the air pumping plug 45 to make a piston movement in the air storage chamber 44. During this process, the cavity between the two air pumping plugs 45 will increase, so that it can pass through the connecting hole. 42 and the air extraction hole 24 extract the gas in the connection chamber 25 and the adsorption port 23, so that a negative pressure environment is presented in the adsorption port 23, so that the fixed frame 21 is adsorbed on the human skin. At this time, the doctor only needs to wear ear hooks It can always pay attention to the beating of the patient's organs, so that the doctor can free up his hands to do other things, so that the doctor can always pay attention to the beating of the patient's organs during emergency treatment. If the doctor needs to adjust the position of the pickup head 1 36 can be rotated, so that the connecting rod 36 drives the connecting rod 35 to rotate, and after the connecting rod 35 drives the second magnetic piece 34 to rotate one hundred and eighty degrees, the magnetic ring opposite to the magnetic ring 33 is magnetically opposite, so that the magnetic ring can 33 to attract, so that the pickup head 1 is adsorbed on the rotating frame 31. At this time, by rotating the rotating frame 31, the pickup head 1 can be driven to rotate, so as to realize the purpose of adjusting the position of the pickup head 1.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (9)

1. A locatable examination auscultation equipment which characterized in that: comprises that

The sound pickup head (1), the sound guide tube (7) is fixedly arranged on the sound pickup head (1) and used for collecting and transmitting sound;

the positioning mechanism (2) is used for fixing the sound pickup head (1) on the skin of a human body;

the adjusting mechanism (3) is arranged between the positioning mechanism (2) and the sound pick-up head (1) and used for adjusting the position of the sound pick-up head (1);

and the control mechanism (4) is arranged on the positioning mechanism (2) and used for controlling the gas pressure inside the positioning mechanism (2).

2. The positionable examination auscultation apparatus of claim 1, wherein: positioning mechanism (2) are including fixed frame (21), sound head (1) is located in fixed frame (21), the bottom fixedly connected with liner (22) of fixed frame (21), the bottom of sound head (1) with the top contact of liner (22), four absorption mouth (23) have been seted up to the bottom of fixed frame (21), connect chamber (25), four have been seted up to the inside of fixed frame (21) absorption mouth (23) all with connect chamber (25) intercommunication, aspirating hole (24) have been seted up on the surface of fixed frame (21), the one end of aspirating hole (24) with connect chamber (25) intercommunication.

3. The positionable examination auscultation apparatus of claim 2, wherein: the adjusting mechanism (3) comprises a rotating frame (31), the rotating frame (31) is rotatably installed on the inner wall of the fixed frame (21), a first magnetic block (32) and a second magnetic block (34) are respectively arranged on the inner wall of the rotating frame (31), the first magnetic block (32) and the second magnetic block (34) are symmetrically distributed by taking the center line of the rotating frame (31) as a symmetry axis, a magnetic ring (33) is fixedly connected to the surface of the pickup head (1), the magnetic poles of the magnetic ring (33) on the side opposite to the first magnetic block (32) are opposite, and the magnetic poles of the magnetic ring (33) on the side opposite to the second magnetic block (34) are opposite.

4. The positionable examination auscultation apparatus of claim 3, wherein: the surface of the first magnetic block (32) is fixedly connected with the inner wall of the rotating frame (31), the surface of the second magnetic block (34) is rotatably connected with the inner wall of the rotating frame (31), the top of the second magnetic block (34) is fixedly connected with a connecting rod (35), and the top end of the connecting rod (35) penetrates through the rotating frame (31) and is fixedly connected with a rotating knob (36).

5. The positionable examination auscultation apparatus of claim 2, wherein: control mechanism (4) including outer joint chair (41), the surface of outer joint chair (41) with the fixed surface of fixed frame (21) is connected, gas storage chamber (44) have been seted up to the inside of outer joint chair (41), piston connection has air suction plug (45) on the inner wall of gas storage chamber (44), being close to of outer joint chair (41) connecting hole (42) have been seted up to one side of outer joint chair (41), the one end of connecting hole (42) with gas storage chamber (44) intercommunication, the other end of connecting hole (42) with air suction hole (24) are kept away from the one end intercommunication of connecting chamber (25).

6. The positionable examination auscultation apparatus of claim 5, wherein: the control mechanism (4) is characterized by further comprising a shaft rod (48), the surface of the shaft rod (48) is connected with the inner wall of the external connection seat (41) in a rotating mode, the surface of the shaft rod (48) is fixedly connected with a rotating column (47), the surface of the rotating column (47) is fixedly connected with a screw rod (411), the surface of the screw rod (411) is spirally driven to be provided with a driving block (46), the inner wall of the external connection seat (41) is fixedly connected with a limiting rod (412), the inner wall of the driving block (46) is connected with the surface of the limiting rod (412) in a sliding mode, and the surface of the driving block (46) is fixedly connected with the inner wall of the air extraction plug (45).

7. The positionable examination auscultation apparatus of claim 5, wherein: the surface of the shaft rod (48) is fixedly connected with a gear (49), the surface of the gear (49) is meshed with a rack (410), the surface of the rack (410) is in sliding connection with the inner wall of the external connecting seat (41), one end, far away from the fixed frame (21), of the rack (410) is fixedly connected with a pressing plate (413), the surface of the external connecting seat (41) is provided with a vent hole (414), the surface of the shaft rod (48) is elastically connected with the inner wall of the external connecting seat (41) through a volute spiral spring (415), and the external connecting seat (41) is provided with a limiting assembly (43) for limiting the circumferential motion of the shaft rod (48).

8. The positionable examination auscultation apparatus of claim 7, wherein: the limiting assembly (43) comprises an installation shell (431), the surface of the installation shell (431) is fixedly connected with the surface of the external base (41), an inserting rod (433) is connected to the inner wall of the installation shell (431) in a sliding mode, a rotary disc (432) is fixedly connected to one end of a shaft rod (48), one end of the inserting rod (433) is inserted into the rotary disc (432), the other end of the inserting rod (433) penetrates through the installation shell (431) and is fixedly connected with a poking plate (435), and the surface of the poking plate (435) is elastically connected with the surface of the installation shell (431) through a return spring (434).

9. The positionable examination auscultation apparatus of any one of claims 3-8, wherein: the top of the sound pickup head (1) is fixedly connected with a baffle (5), the top of the baffle (5) is in contact with the top wall inside the rotating frame (31), and a groove (6) is formed in the surface of the baffle (5).

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