CN213466767U - Stethoscope toy - Google Patents
Stethoscope toy Download PDFInfo
- Publication number
- CN213466767U CN213466767U CN202022446065.2U CN202022446065U CN213466767U CN 213466767 U CN213466767 U CN 213466767U CN 202022446065 U CN202022446065 U CN 202022446065U CN 213466767 U CN213466767 U CN 213466767U
- Authority
- CN
- China
- Prior art keywords
- stethoscope
- chip
- resistor
- capacitor
- microphone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Toys (AREA)
Abstract
The utility model provides a stethoscope toy, including the stethoscope, the stethoscope includes sound pickup portion, conduction portion and listening portion constitute, sound pickup portion, conduction portion and listening portion connect gradually, the inside of sound pickup portion is the cavity, be equipped with the microphone in the cavity, one-level amplifier circuit, second grade amplifier circuit, chip and power are put to fortune, the power is the microphone respectively, one-level amplifier circuit, the chip power supply is put to second grade amplifier circuit and fortune, the microphone, one-level amplifier circuit, second grade fortune is put the circuit and is put the chip and connect gradually with fortune, chip output audio data sends out and gives conduction portion, give sound pickup portion by conduction portion with sound transmission. The utility model discloses can simulate the sight of doctorsing and nurses the auscultation through the stethoscope toy, can use the pickup portion of stethoscope again to acquire external sound, have dual function.
Description
Technical Field
The utility model relates to a toy, in particular to a stethoscope toy.
Background
With the continuous improvement of living standard, the varieties of toys for children are more and more, and parents hope to help enlighten children by means of intelligent toys due to busy work. That is, parents expect the toy to have not only the function of playing but also the functions of developing intelligence, cultivating emotion and simulating daily life. The existing stethoscope toy only has the appearance of a stethoscope, can not hear sound through the stethoscope, and has a single function.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims to provide a stethoscope toy can see through the sight of auscultation is doctorsed and nurses in stethoscope toy simulation, can use the pickup portion of stethoscope again to acquire external sound, has dual function.
In order to achieve the above purpose, the utility model adopts the following specific technical scheme:
the utility model provides a stethoscope toy, includes the stethoscope, the stethoscope includes sound pickup portion, conduction portion and listening portion constitution, sound pickup portion, conduction portion and listening portion connect gradually, the inside of sound pickup portion is the cavity, be equipped with microphone, one-level amplifier circuit, second grade amplifier circuit, fortune in the cavity and put chip and power, the power does respectively microphone, one-level amplifier circuit, second grade amplifier circuit and fortune are put the chip power supply, microphone, one-level amplifier circuit, second grade fortune are put the circuit and are put the chip and connect gradually, fortune chip output audio data gives conduction portion, by conduction portion gives sound transmission for listening portion.
Further, the microphone is an electret microphone MIC.
The power switch is connected with the power supply, and one end of the power switch penetrates through the cavity to reach the outer surface of the sound-collecting part.
Furthermore, the primary amplifying circuit comprises a resistor R1, a capacitor C1 and a resistor R4, one end of the resistor R1 is connected with the positive electrode of the power supply, the other end of the resistor R1 is connected with one end of the microphone and one end of the capacitor C1 respectively, the other end of the capacitor C1 is connected with one end of a resistor R4, and the other end of the resistor R4 is connected with a second pin of the operational amplifier chip.
Furthermore, the secondary amplification circuit comprises a capacitor C3, a potentiometer PR, a capacitor C4 and a resistor R6, one end of the capacitor C3 is connected with the first pin of the operational amplifier chip, the other end of the capacitor C3 is connected with the potentiometer PR, one end of the potentiometer PR is grounded, the adjusting end of the potentiometer PR is connected with the capacitor C4 and the resistor R6, and the other end of the resistor R6 is connected with the sixth pin of the operational amplifier chip.
Further, the operational amplifier chip is an LM324 chip.
Furthermore, a third pin of the operational amplifier chip is further connected with a voltage division circuit and a filter capacitor.
Further, the power supply is a direct current battery.
The beneficial effects of the utility model reside in that: can simulate the sight of doctorsing and nurses through the stethoscope toy, can use the pickup portion of stethoscope again to acquire external sound, have dual function.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a stethoscope toy provided in an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of the sound pickup section.
In the figure, the 1-sound collecting part, the 2-conduction part and the 3-listening part are arranged.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, other embodiments obtained by a person of ordinary skill in the art without creative work all belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1 and 2, the utility model provides a stethoscope toy, including the stethoscope, the stethoscope outward appearance is children toy model, it simulates to be convenient for children to carry out the auscultation situation, the stethoscope includes sound pickup portion 1, conduction portion 2 constitutes with listening portion 3, sound pickup portion 1, conduction portion 2 connects gradually with listening portion 3, the adapter is used for acquireing external sound, sound pickup portion 1's inside is the cavity, be equipped with the microphone in the cavity, one-level amplifier circuit, second grade amplifier circuit, chip and power are put in fortune, the power is the microphone respectively, one-level amplifier circuit, second grade amplifier circuit and the chip power supply is put in fortune, the microphone, one-level amplifier circuit, second grade amplifier circuit and the chip connect gradually in fortune, fortune chip output audio data gives conduction portion 2, give sound pickup portion 3 by conduction portion 2 with sound transmission.
The utility model discloses a stethoscope toy is different from current toy model that can not acquire external sound, also is different from current medical or domestic stethoscope, can acquire sound, acquires sound through the microphone in addition, amplifies by one-level amplifier circuit, second grade amplifier circuit for child can hear the sound of raindrop, the sound of insect singing, the sound of wind, arouses child's the exploration desire to external environment.
The microphone is an electret microphone MIC. The MIC selects a miniature electret microphone, a sound gathering basin is properly manufactured outside the microphone, the MIC is filled in plastic with the inner diameter of 20-30 mm, and a layer of flannelette is adhered to the inner surface of the plastic to absorb sound so as to improve the quality of a sound source.
Specifically, the utility model discloses still include switch, switch is connected with the power, and one end is passed the cavity and is reachd the surface of sound collecting part 1. Through switch, the utility model discloses can select to acquire sound or not acquire sound.
The operational amplifier chip is an LM324 chip. The first-stage amplifying circuit comprises a resistor R1, a capacitor C1 and a resistor R4, one end of the resistor R1 is connected with the positive electrode of a power supply, the other end of the resistor R1 is connected with one end of the microphone and one end of the capacitor C1 respectively, the other end of the capacitor C1 is connected with one end of a resistor R4, and the other end of the resistor R4 is connected with a second pin of the operational amplifier chip. The secondary amplification circuit comprises a capacitor C3, a potentiometer PR, a capacitor C4 and a resistor R6, one end of the capacitor C3 is connected with a first pin of the operational amplifier chip, the other end of the capacitor C3 is connected with the potentiometer PR, one end of the potentiometer PR is grounded, an adjusting end of the potentiometer PR is connected with the capacitor C4 and the resistor R6, and the other end of the resistor R6 is connected with a sixth pin of the operational amplifier chip. And the third pin of the operational amplifier chip is also connected with a voltage division circuit and a filter capacitor. R5 and R7 are degeneration resistors of the operational amplifier.
The power supply is a DC battery. The button cell can be selected as the direct current cell, and the model can be self-defined and matched according to the user requirement.
The beneficial effects of the utility model reside in that: not only can simulate the medical auscultation situation through the stethoscope toy, but also can acquire external sound by using the sound collecting part 1 of the stethoscope, and has dual functions.
In light of the foregoing description of the preferred embodiments of the present invention, those skilled in the art can now make various alterations and modifications without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. The utility model provides a stethoscope toy, includes the stethoscope, the stethoscope includes sound pickup portion, conduction portion and listening portion and constitutes, sound pickup portion, conduction portion and listening portion connect gradually its characterized in that: the inside of sound pick-up portion is the cavity, be equipped with microphone, one-level amplifier circuit, second grade amplifier circuit, fortune in the cavity and put chip and power, the power does respectively the chip power supply is put to microphone, one-level amplifier circuit, second grade amplifier circuit and fortune, microphone, one-level amplifier circuit, second grade fortune are put the circuit and are put the chip and connect gradually, chip output audio data sends the conduction portion for, by the conduction portion with sound transmission for sound pick-up portion.
2. A stethoscope toy according to claim 1, wherein: the microphone is an electret microphone MIC.
3. A stethoscope toy according to claim 1, wherein: the power switch is connected with the power supply, and one end of the power switch penetrates through the cavity to reach the outer surface of the sound collecting part.
4. A stethoscope toy according to claim 1, wherein: the primary amplifying circuit comprises a resistor R1, a capacitor C1 and a resistor R4, one end of the resistor R1 is connected with the positive electrode of a power supply, the other end of the resistor R1 is connected with one end of the microphone and one end of the capacitor C1 respectively, the other end of the capacitor C1 is connected with one end of a resistor R4, and the other end of the resistor R4 is connected with a second pin of the operational amplifier chip.
5. A stethoscope toy according to claim 4, wherein: the secondary amplifying circuit comprises a capacitor C3, a potentiometer PR, a capacitor C4 and a resistor R6, one end of the capacitor C3 is connected with a first pin of the operational amplifier chip, the other end of the capacitor C3 is connected with the potentiometer PR, one end of the potentiometer PR is grounded, an adjusting end of the potentiometer PR is connected with the capacitor C4 and the resistor R6, and the other end of the resistor R6 is connected with a sixth pin of the operational amplifier chip.
6. A stethoscope toy according to claim 4 or 5, wherein: the operational amplifier chip is an LM324 chip.
7. A stethoscope toy according to claim 6, wherein: and a third pin of the operational amplifier chip is also connected with a voltage division circuit and a filter capacitor.
8. A stethoscope toy according to claim 1, wherein: the power supply is a direct current battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022446065.2U CN213466767U (en) | 2020-10-29 | 2020-10-29 | Stethoscope toy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022446065.2U CN213466767U (en) | 2020-10-29 | 2020-10-29 | Stethoscope toy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213466767U true CN213466767U (en) | 2021-06-18 |
Family
ID=76368455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022446065.2U Expired - Fee Related CN213466767U (en) | 2020-10-29 | 2020-10-29 | Stethoscope toy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213466767U (en) |
-
2020
- 2020-10-29 CN CN202022446065.2U patent/CN213466767U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207166686U (en) | A kind of audio amplifier for being easy to deashing | |
| CN213466767U (en) | Stethoscope toy | |
| CN106510752A (en) | Domestic and medical two-purpose sound recording and fetal heart sound listening stethoscope | |
| Ou et al. | An electronic stethoscope for heart diseases based on micro-electro-mechanical-system microphone | |
| CN207253762U (en) | A kind of educational toy for children speaker | |
| CN210811146U (en) | Simulation stethoscope | |
| CN209951825U (en) | Music interactive pacifying nipple | |
| CN201482176U (en) | Sound control electronic cat | |
| JPS61253046A (en) | Convertible electronic stethoscope | |
| CN209517482U (en) | A kind of Baffle Box of Bluetooth and music modality having sound stream demo function | |
| CN206490817U (en) | Desktop speaker with WiFi and wireless charging | |
| CN213823074U (en) | Device for arousing positive emotion | |
| CN201773521U (en) | Blood pressure teaching demonstrator | |
| CN204859558U (en) | Hearing aid | |
| CN206341367U (en) | A kind of small size loudspeaker carry vibrating diaphragm audio amplifier | |
| CN216134572U (en) | Wireless microphone | |
| CN112423168B (en) | Energy-saving speaker for teachers and use method thereof | |
| CN203483450U (en) | Amplifying stethoscope | |
| CN215017834U (en) | Intelligence public address stethoscope based on bluetooth | |
| CN212543980U (en) | Multifunctional Bluetooth sound box | |
| CN206596228U (en) | A kind of special audiphone with sound-recording function of medicine equipment | |
| CN210345084U (en) | LED shadowless small desk lamp with intelligent voice-operated switch and brightness | |
| CN210518778U (en) | Intelligent wireless induction earphone | |
| CN215871820U (en) | Wireless microphone based on wireless internal recording | |
| CN201577198U (en) | Chinese class hearing aid for students attending lectures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210618 Termination date: 20211029 |