CN108742699B - Dustproof electronic stethoscope that makes an uproar that falls - Google Patents
Dustproof electronic stethoscope that makes an uproar that falls Download PDFInfo
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- CN108742699B CN108742699B CN201810683357.2A CN201810683357A CN108742699B CN 108742699 B CN108742699 B CN 108742699B CN 201810683357 A CN201810683357 A CN 201810683357A CN 108742699 B CN108742699 B CN 108742699B
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- dustproof
- auscultation
- electrically connected
- noise
- plate
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B7/00—Instruments for auscultation
- A61B7/02—Stethoscopes
- A61B7/04—Electric stethoscopes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The invention discloses a dustproof and noise-reducing electronic stethoscope, which comprises an auscultation plate, wherein a sound collecting plate is fixedly installed on the lower surface of the auscultation plate, a coupling cavity is fixedly communicated with the upper surface of the auscultation plate, an electronic component box is fixedly installed on the upper surface of the coupling cavity, the electronic component box comprises a microphone, the surface of the microphone is fixedly connected with the inner side wall of the coupling cavity, a conducting pipe is fixedly communicated with the inner side wall of the coupling cavity, and a listening earplug is fixedly communicated with the top of the conducting pipe. This dustproof electronic stethoscope of making an uproar that falls, it carries out dirt-proof effect to falling the inside adapter plate of making an uproar, during the use, rotate the internal gear circle through pressing the piece, the inner wall of internal gear circle drives the round pin axle rotation with the surperficial meshing back of external gear, the round pin axle drives the polymerization of dustproof ring center department after six first dust guards on its surface and second dust guard are articulated, form circular form, with this reaching dustproof effect, during the auscultation, can open through pressing a piece antiport, thereby have dirt-proof characteristics.
Description
Technical Field
The invention relates to the technical field of stethoscopes, in particular to a dustproof and noise-reducing electronic stethoscope.
Background
The stethoscope is the most commonly used diagnostic tool for internal and external gynecologists, is the mark of the physicians, and the modern medicine is the invention of the stethoscope. The stethoscope has been improved in appearance and sound transmission mode since the clinical application of 3.8.3.1817, but the basic structure of the stethoscope is not changed greatly, and the stethoscope mainly comprises a sound pickup part (a chest piece), a transmission part (a rubber tube) and a listening part (an ear piece).
Most of sound pick-up parts of the existing electronic stethoscopes are exposed outside when in use, are easily influenced by the external environment, are also easily collided and scratched at the same time, and directly influence the auscultation effect, and in addition, the sound pick-up parts are also easily influenced by the external environment noise when in auscultation, so that the correct judgment of the auscultation is easily influenced;
in the sound insulation material, the material generally has more hardness and less softness, and the material between the hardness and softness has high manufacturing cost, and the proportion of each material is not easy to control.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the dustproof and noise-reducing electronic stethoscope which has the characteristics of low manufacturing cost of dustproof, noise-reducing and sound-insulating materials.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a dustproof electronic stethoscope who makes an uproar that falls, includes the auscultation board, and the lower fixed surface of auscultation board installs and picks up the soundboard, and the last fixed surface intercommunication of auscultation board has the coupling chamber, and the last fixed surface of coupling chamber installs the electronic parts case, and the electronic parts case includes the microphone, the surface of microphone and the inside wall fixed connection of coupling chamber, and the fixed intercommunication of inside wall of coupling chamber has the conduction pipe, and the fixed intercommunication in top of conduction pipe has the listening earplug.
The lower fixed surface of auscultation board is connected with and falls the pipe of making an uproar, falls the lower fixed surface of pipe of making an uproar and is connected with the dust ring, and the inside of dust ring is provided with dust keeper, and dust keeper includes the second dust guard, and the surface of second dust guard is the arc shape, and six second dust guards use the axle center of dust ring to be annular array distribution as the array center, and the center department of six second dust guards concatenation is circular form.
Furthermore, the inner wall of the electronic component box is fixedly connected with a preamplifier, a filter, a data acquisition card and a wireless signal transmitting receiver respectively, the microphone is electrically connected with the preamplifier, the preamplifier is electrically connected with the filter, the filter is electrically connected with the data acquisition card, and the data acquisition card is electrically connected with the wireless signal transmitting receiver in a bidirectional mode through an A/D (D/A) converter.
Furthermore, the wireless signal transmitter-receiver is electrically connected with a computer, and the computer is electrically connected with a memory.
Furthermore, the data acquisition card is electrically connected with a power amplifier, and the power amplifier is electrically connected with a loudspeaker.
Furthermore, the rotary groove has been seted up to the inside wall of dirt-proof ring, and the equal slip grafting of interior roof and interior diapire of rotary groove has the round pin axle, and round pin axle surface articulates there is first dust guard, and the coincidence groove has been seted up to the side of first dust guard, and the middle part surface and the second dust guard fixed connection of round pin axle, the upper surface and the lower surface of second dust guard respectively with the interior roof and the interior diapire sliding connection in coincidence groove.
Furthermore, fixed surface is connected with spacing on the one end of first dust guard, and the inner ceiling wall fixedly connected with stopper that the swivelling chute is close to the dustproof intra-annular wall.
Further, the bottom fixed surface of round pin axle is connected with the external gear, and the inner bottom lateral wall of swivelling chute rotates through the mounting groove of seting up and is connected with the internal gear circle, and the internal tooth of internal gear circle meshes with the external tooth of external gear, and the surface of dirt proof ring slides through the swivelling chute that the surface was seted up and pegs graft and has according to the movable block, presses the surface of movable block and the fixed surface connection of internal gear circle.
Furthermore, the noise reduction pipe is made of a rubber sound insulation pad, and the rubber sound insulation pad is made of ethylene propylene diene monomer.
Further, S1, preparing master batch, namely banburying 33% of ethylene propylene diene monomer and 33% of activated nano SiO2 in a furnace body at 80-110 ℃ for 3 minutes, cooling to 50-60 ℃, open milling for 5 minutes, and discharging sheets, wherein the temperature is controlled at 50-60 ℃;
and S2, preparing a reverse mold of the noise reduction tube, and placing a spring into the bottom wall of the mold.
Further, S3, mix preparation: weighing the master batch prepared in the step S2, the remaining 67% of ethylene propylene diene monomer and other auxiliary agents, adding 5% of silica gel, banburying for 6 minutes in a furnace body at a temperature lower than 120 ℃, controlling the banburying temperature at 50-60 ℃, open milling for 8 minutes, feeding 50-60 ℃, heating to 160 ℃ after 2 minutes, vulcanizing the rubber sheet for 30 minutes, and leading out to cool at room temperature.
In conclusion, the invention has the following beneficial effects:
1. the surface through setting up the second dust guard is the arc shape, six second dust guards use the axle center of dust ring to be annular array distribution as the array center, the center department of six second dust guard concatenations is circular form, the inside adapter plate of making an uproar falls has been reached and has been carried out dirt-proof effect, in use, rotate the internal gear circle through pressing the piece, the inner wall of internal gear circle drives the round pin axle after with the surface toothing of external gear and rotates, the round pin axle drives six first dust guards on its surface and the articulated polymerization of back department of dust ring of second dust guard, form circular form, reach dustproof effect with this, during the auscultation, can open through pressing a piece antiport, thereby dustproof characteristics have.
2. The manufacturing material through setting up the noise reduction pipe includes rubber sound insulation pad and manufacturing method thereof, has reached and has increased its stereoplasm requirement on having soft basis to the noise reduction pipe, and is with low costs simultaneously, adds the spring back, can not cause the injury to the human body because of the stereoplasm on the one hand, and on the other hand can not influence the normal use of stethoscope because of soft to have and fall the characteristics that makes an uproar and sound insulation material cost of manufacture is low.
3. The microphone amplifies the collected sound signal, then the signal is further filtered by the filter, the impurity sound is filtered, the data collection card collects the signal, the signal is converted by the A/D (D/A) converter, the signal is transmitted by the wireless signal transmitting receiver and receives the data processed by the computer, and the sound is stored by the same memory, so that the sound can be called out conveniently and timely, and the sound can be amplified through a power amplifier and a loudspeaker for consultation between doctors.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial cross-sectional view of the dust collar structure of the present invention;
FIG. 3 is a top view of the dust ring structure of the present invention closed;
FIG. 4 is an open top view of the dust collar structure of the present invention;
FIG. 5 is a perspective view of a second dust guard of the present invention;
FIG. 6 is a sectional view showing the structure of an electronic component case according to the present invention;
FIG. 7 is an electrical schematic diagram of the electronic component box structure of the present invention.
In the figure: 1. a stethoscope plate; 2. a sound collecting plate; 3. a coupling cavity; 4. an electronic component box; 41. a microphone; 42. a preamplifier; 43. a filter; 44. a data acquisition card; 45. a wireless signal transmitter-receiver; 46. a computer; 47. a memory; 48. amplifying power; 49. a speaker; 5. a conducting tube; 6. a listening earplug; 7. a noise reduction tube; 71. a spring; 8. a dust ring; 81. a second dust-proof plate; 82. a rotary trough; 83. a pin shaft; 84. a first dust-proof plate; 85. a coincidence tank; 86. a limiting strip; 87. a limiting block; 88. an outer gear; 89. an inner gear ring; 891. and pressing the block.
Detailed Description
Example (b):
the present invention is described in further detail below with reference to figures 1-7.
A dustproof and noise-reducing electronic stethoscope, as shown in FIGS. 6-7, comprises a stethoscope plate 1, a sound-collecting plate 2 is fixedly mounted on the lower surface of the stethoscope plate 1, a coupling cavity 3 is fixedly communicated with the upper surface of the stethoscope plate 1, an electronic component box 4 is fixedly mounted on the upper surface of the coupling cavity 3, the electronic component box 4 comprises a microphone 41, the surface of the microphone 41 is fixedly connected with the inner side wall of the coupling cavity 3, the inner wall of the electronic component box 4 is respectively and fixedly connected with a preamplifier 42, a filter 43, a data collecting card 44 and a wireless signal transmitting and receiving device 45, the microphone 41 is electrically connected with the preamplifier 42, the preamplifier 42 is electrically connected with the filter 43, the preamplifier can adopt a triode operational amplifier structure to form a preamplifier circuit, the bandwidth of the amplifier is 0.5HZ 2.258HZ, the amplifier circuit has high input impedance and high common mode rejection ratio, thereby reducing interference and the like, the gain of the amplifier is:
a = [ (R8+ R9) × R6]/(R9 × R4) × 1+2 × R2/R3 filter 43 is electrically connected with the data acquisition card 44, the filter 43 adopts a cascade type first-order band-pass filter circuit with a passband of 15.9 Hz-1592.4 Hz, the full frequency channel comprises a wider vibration frequency range, the low frequency channel is suitable for auscultation of low frequency noise, corresponding device parameters can be calculated according to different passband, the control can be carried out by programming a key, the data acquisition card 44 is electrically connected with the wireless signal transmitting receiver 45 in a bidirectional way through an A/D (D/A) converter, the wireless signal transmitting receiver 45 is electrically connected with the computer 46, the computer 46 is electrically connected with the memory 47, the data acquisition card 44 is electrically connected with the power amplifier 48, the power amplifier 48 is electrically connected with the loudspeaker 49, and is electrically connected with the preamplifier 42 through the microphone 41, the preamplifier 42 is electrically connected with the filter 43, the filter 43 is electrically connected with the data acquisition card 44, the data acquisition card 44 is electrically connected with the wireless signal transmitting receiver 45 in a bidirectional way through an A/DD/A converter, the effect of further processing and remotely storing the auscultation data of the electronic stethoscope is achieved, the microphone 41 amplifies the acquired sound signals, then the filter 43 further filters the amplified sound signals to filter out impurity sounds, then the data acquisition card 44 acquires the converted signals through the A/DD/A converter, the wireless signal transmitting receiver 45 transmits and receives the data processed by the computer 46, the data are stored in the memory 47, the data are conveniently and timely called out, the sound can be amplified through the power amplifier 48 and the loudspeaker 49 for consultation among doctors, the inner side wall of the coupling cavity 3 is fixedly communicated with the conducting tube 5, the top of the conducting tube 5 is fixedly communicated with a listening earplug 6.
Fixedly connecting a noise reduction tube 7 to the lower surface of the auscultation plate 1, wherein the noise reduction tube 7 is made of a rubber sound insulation pad, the rubber sound insulation pad is made of ethylene propylene diene monomer, S1 and master rubber, 33% of ethylene propylene diene monomer and 33% of activated nano SiO2 are subjected to banburying in a furnace body at 80-110 ℃ for 3 minutes, the temperature is reduced to 50-60 ℃, the mixture is opened for 5 minutes, and the mixture is discharged at 50-60 ℃;
s2, preparing a reverse-mixing mold of the noise reduction tube 7, putting a spring 71 into the bottom wall of the mold, S3, preparing rubber compound: weighing the master batch prepared in the step S2, the remaining 67 percent of ethylene propylene diene monomer and other auxiliary agents, adding 5 percent of silica gel, banburying for 6 minutes in a furnace body at a temperature lower than 120 ℃, controlling the banburying temperature at 50-60 ℃, open milling for 8 minutes, heating the lower sheet to 160 ℃ after 2 minutes, vulcanizing the rubber sheet for 30 minutes, leading out the rubber sheet for room temperature cooling, and arranging the noise reduction tube 7 with manufacturing materials including a rubber sound insulation pad and a manufacturing method thereof to achieve the purpose of increasing the hard requirement of the noise reduction tube 7 on the basis of soft property, simultaneously having low cost, after adding the spring 71, on one hand, the noise reduction tube 7 cannot cause damage to a human body due to the hard property, on the other hand, the normal use of the stethoscope due to the soft property is not influenced, so that the noise reduction and sound insulation material manufacturing cost is low, the lower surface of the noise reduction tube 7 is fixedly connected with a dust ring 8, as shown in fig. 1-5, the dust-proof device includes a second dust-proof plate 81, the surface of the second dust-proof plate 81 is arc-shaped, six second dust-proof plates 81 are distributed in an annular array with the axis of the dust-proof ring 8 as the array center, the center of the splicing of the six second dust-proof plates 81 is circular, the inner side wall of the dust-proof ring 8 is provided with a revolving groove 82, the inner top wall and the inner bottom wall of the revolving groove 82 are both inserted with a pin shaft 83 in a sliding manner, the surface of the pin shaft 83 is hinged with a first dust-proof plate 84, the side surface of the first dust-proof plate 84 is provided with a coincidence groove 85, the middle surface of the pin shaft 83 is fixedly connected with the second dust-proof plate 81, the upper surface and the lower surface of the second dust-proof plate 81 are respectively connected with the inner top wall and the inner bottom wall of the coincidence groove 85 in a sliding manner, the upper surface of one end, the bottom surface of the pin shaft 83 is fixedly connected with an external gear 88, the inner bottom side wall of the rotary groove 82 is rotatably connected with an internal gear ring 89 through an installation groove, the internal teeth of the internal gear ring 89 are meshed with the external teeth of the external gear 88, the outer surface of the dustproof ring 8 is slidably inserted with a pressing block 891 through a rotary groove arranged on the surface, the surface of the pressing block 891 is fixedly connected with the outer surface of the internal gear ring 89, the surface of the second dustproof plate 81 is arranged in an arc shape, the six second dustproof plates 81 are distributed in an annular array shape by taking the axis of the dustproof ring 8 as the array center, the centers of the splicing of the six second dustproof plates 81 are in a circular shape, the effect of preventing dust of the soundboard pickup 2 in the noise reduction tube 7 is achieved, when in use, the internal gear ring 89 is rotated by the pressing block 891, the inner wall of the internal gear ring 89 is meshed with the surface of the external gear 88 to drive the pin shaft 83 to rotate, the pin shaft drives the six first dustproof plates 84 on the surface to, form circular shape to this reaches dustproof effect, during the auscultation, can open through pressing the reverse rotation of movable block 891, thereby has dustproof characteristics.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a dustproof electronic stethoscope who makes an uproar that falls, includes auscultation board (1), the lower fixed surface of auscultation board (1) installs and picks up soundboard (2), its characterized in that: the upper surface of the auscultation board (1) is fixedly communicated with a coupling cavity (3), the upper surface of the coupling cavity (3) is fixedly provided with an electronic component box (4), the electronic component box (4) comprises a microphone (41), the surface of the microphone (41) is fixedly connected with the inner side wall of the coupling cavity (3), the inner side wall of the coupling cavity (3) is fixedly communicated with a conduction tube (5), and the top of the conduction tube (5) is fixedly communicated with a listening earplug (6);
the auscultation board is characterized in that a noise reduction tube (7) is fixedly connected to the lower surface of the auscultation board (1), a dustproof ring (8) is fixedly connected to the lower surface of the noise reduction tube (7), a dustproof device is arranged inside the dustproof ring (8), the dustproof device comprises a second dustproof plate (81), the surface of the second dustproof plate (81) is in an arc shape, six second dustproof plates (81) are distributed in an annular array mode by taking the axis of the dustproof ring (8) as an array center, and the centers of splicing the six second dustproof plates (81) are in a circular shape;
the inner side wall of the dustproof ring (8) is provided with a rotary groove (82), the inner top wall and the inner bottom wall of the rotary groove (82) are both inserted with a pin shaft (83) in a sliding mode, the surface of the pin shaft (83) is hinged with a first dustproof plate (84), the side face of the first dustproof plate (84) is provided with a coincidence groove (85), the middle surface of the pin shaft (83) is fixedly connected with a second dustproof plate (81), and the upper surface and the lower surface of the second dustproof plate (81) are respectively connected with the inner top wall and the inner bottom wall of the coincidence groove (85) in a sliding mode;
the upper surface of one end of the first dustproof plate (84) is fixedly connected with a limiting strip (86), and the inner top wall of the rotary groove (82) close to the inner side wall of the dustproof ring (8) is fixedly connected with a limiting block (87);
the bottom fixed surface of round pin axle (83) is connected with external gear (88), the inside bottom lateral wall of revolution groove (82) is connected with internal gear circle (89) through the mounting groove rotation of seting up, the internal tooth of internal gear circle (89) meshes with the external tooth of external gear (88), the surface of dirt proof ring (8) is through the spout slip grafting that the surface was seted up and is pressed movable block (891), the surface of pressing movable block (891) and the outer fixed surface of internal gear circle (89) are connected.
2. The dustproof and noise-reducing electronic stethoscope according to claim 1, wherein: the inner wall of the electronic component box (4) is fixedly connected with a preamplifier (42), a filter (43), a data acquisition card (44) and a wireless signal transmitting and receiving device (45) respectively, the microphone (41) is electrically connected with the preamplifier (42), the preamplifier (42) is electrically connected with the filter (43), the filter (43) is electrically connected with the data acquisition card (44), and the data acquisition card (44) is electrically connected with the wireless signal transmitting and receiving device (45) in a bidirectional mode through an A/D converter.
3. The dustproof and noise-reducing electronic stethoscope according to claim 2, wherein: the wireless signal transmitting and receiving device (45) is electrically connected with a computer (46), and the computer (46) is electrically connected with a memory (47).
4. The dustproof and noise-reducing electronic stethoscope according to claim 2, wherein: the data acquisition card (44) is electrically connected with a power amplifier (48), and the power amplifier (48) is electrically connected with a loudspeaker (49).
5. The dustproof and noise-reducing electronic stethoscope according to claim 1, wherein: the noise reduction pipe (7) is made of rubber sound insulation pads, and the rubber sound insulation pads are made of ethylene propylene diene monomer.
6. The dustproof and noise-reducing electronic stethoscope according to claim 5, wherein the manufacturing method comprises the following steps: s1, preparing master batch, namely banburying 33% of ethylene propylene diene monomer and 33% of activated nano SiO2 in a furnace body at 80-110 ℃ for 3 minutes, cooling to 50-60 ℃, open milling for 5 minutes, and discharging sheets, wherein the temperature is controlled at 50-60 ℃;
s2, preparing a reverse-smelting mould of the noise reduction tube (7), and placing the spring (71) into the bottom wall of the mould.
7. The dustproof and noise-reducing electronic stethoscope according to claim 6, wherein the manufacturing method comprises the following steps: s3, preparing a rubber compound: weighing the master batch prepared in the step S2 and the rest 67% of ethylene propylene diene monomer, adding 5% of silica gel, banburying for 6 minutes in a furnace body at a temperature lower than 120 ℃, controlling the banburying temperature at 50-60 ℃, open milling for 8 minutes, discharging 50-60 ℃, heating to 160 ℃ after 2 minutes, vulcanizing the rubber sheet for 30 minutes, and cooling at room temperature.
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| CN201810683357.2A CN108742699B (en) | 2018-06-28 | 2018-06-28 | Dustproof electronic stethoscope that makes an uproar that falls |
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| CN201810683357.2A CN108742699B (en) | 2018-06-28 | 2018-06-28 | Dustproof electronic stethoscope that makes an uproar that falls |
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| CN108742699B true CN108742699B (en) | 2021-04-23 |
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| CN109730718B (en) * | 2018-12-28 | 2022-01-14 | 宁波市江北天硕医疗仪器有限公司 | Arrow-shaped stethoscope |
| CN112205999A (en) * | 2020-09-25 | 2021-01-12 | 广州逸彬科技有限公司 | Stethoscope capable of automatically heating in winter |
| CN114704778A (en) * | 2021-04-21 | 2022-07-05 | 天圜工程有限公司 | Leak hunting instrument for pipeline maintenance |
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