Sound changing device for teaching aid and toy

Abstract

The utility model provides a sound changing device for teaching aids and toys, which comprises a loudspeaker, a sound amplifying cover, a battery box, a mounting part and a circuit board, the mounting part is detachably mounted with the upper end of the battery box, the sound amplifying cover is detachably mounted with the front side of the mounting part, the loudspeaker is detachably mounted with the inner side of the sound amplifying cover, and the circuit board is detachably mounted with the inner side of the sound amplifying cover. The circuit board and the rear side of the mounting part are detachably mounted; a microphone is arranged on the circuit board, a connecting line of the battery box is detachably connected with a power interface on the circuit board, and a connecting line of the loudspeaker is detachably connected with a loudspeaker interface on the circuit board. The sound changing device for the teaching aid and the toy is convenient to disassemble and assemble, is convenient for any teacher to explain, is convenient for students to operate manually, improves the sense of participation of the students during learning, and is more ideal in teaching application effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to sound changing device technical field especially is related to a sound changing device for teaching aids and toys. BACKGROUND

[0002] The sound changer on the market is complex in structure and inconvenient for teaching, with the progress of science and technology and the increasing requirement of users on the interactivity of toys and teaching aids, the education requirement in acoustics and electronics is also increasing, under such environment, the traditional sound changer is difficult to meet the use requirement.

[0003] The traditional sound changer is mostly an integrated structure product, when the sound changer is disassembled and the circuit principle needs to be explained, it is difficult to operate without damage, it is difficult to explain in depth in the teaching process, the requirement on the manual level of the teacher is higher, the students are difficult to understand the working principle, the participation of the students in learning is low, the application effect in teaching is not ideal, and the sound changer itself is easily damaged when analyzing the principle of the sound changer, causing the teaching aid to work abnormally. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a sound changing device for teaching aids and toys, which can solve the problem that the traditional sound changer is difficult to teach due to the adoption of an integrated structure and the students have low participation in learning.

[0005] The utility model provides a sound changing device for teaching aids and toys, which comprises a loudspeaker, a sound amplification cover, a battery box, a mounting part and a circuit board, the mounting part is detachably mounted with the upper end of the battery box, the sound amplification cover is detachably mounted with the front side of the mounting part, the loudspeaker is detachably mounted with the inner side of the sound amplification cover, and the circuit board is detachably mounted with the rear side of the mounting part.

[0006] According to the sound changing device for teaching aids and toys, the mounting part comprises a mounting ring and a multi-hole mounting panel fixed to the inner side of the mounting ring, the left and right sides of the multi-hole mounting panel are respectively formed with side edge mounting gaps between the inner side walls of the mounting ring, and the lower side of the multi-hole mounting panel is formed with a lower edge mounting gap between the inner side wall of the mounting ring.

[0007] The utility model provides a sound changing device for teaching aids and toys, connecting ears are fixedly arranged on the bottom of the outer side wall of the mounting ring, and the connecting ears and the battery box are connected through bolts; the connecting ears are provided with a hollow chamber, the mounting ring is provided with a through hole corresponding to the hollow chamber, and the connecting line of the battery box can be connected to the power supply interface on the circuit board through the hollow chamber, the through hole and the lower edge mounting gap in sequence.

[0008] The utility model provides a sound changing device for teaching aids and toys, the sound amplifier cover includes mounting bottom plate and loudspeaker horn, and the small diameter end of loudspeaker horn is fixedly connected with the mounting bottom plate.

[0009] The utility model provides a sound changing device for teaching aids and toys, the mounting bottom plate and the front side of the multi-hole mounting panel are connected through screws.

[0010] The utility model provides a sound changing device for teaching aids and toys, and the loudspeaker and the mounting bottom plate are connected through sponge adhesive.

[0011] The utility model provides a sound changing device for teaching aids and toys, and the loudspeaker and the mounting bottom plate are connected through sponge adhesive.

[0012] The utility model provides a sound changing device for teaching aids and toys, and the loudspeaker and the mounting bottom plate are connected through sponge adhesive.

[0013] The utility model provides a sound changing device for teaching aids and toys, and the loudspeaker and the mounting bottom plate are connected through sponge adhesive.

[0014] The utility model provides a sound changing device for teaching aids and toys, and the loudspeaker and the mounting bottom plate are connected through sponge adhesive.

[0015] The utility model provides a voice changing device for teaching aids and toys. The voice changing device is provided with a detachable speaker, a sound amplifying cover, a battery box, a mounting portion, and a circuit board. The mounting portion is detachably mounted to the upper end of the battery box, the sound amplifying cover is detachably mounted to the front side of the mounting portion, the speaker is detachably mounted to the inner side of the sound amplifying cover, and the circuit board is detachably mounted to the rear side of the mounting portion, thereby facilitating disassembly and assembly of the voice changing device. A microphone is provided on the circuit board, a connecting line of the battery box is detachably connected to a power interface on the circuit board, and a connecting line of the speaker is detachably connected to a speaker interface on the circuit board, thereby facilitating circuit connection between the speaker, the battery box, and the circuit board. When the voice changing device is assembled, a person can speak into the microphone and, after a short pause, the speaker can emit the changed voice. Thus, the voice changing device for teaching aids and toys provided by the utility model is easy to disassemble and assemble, making it convenient for teachers to explain and for students to operate, thereby enhancing students' sense of participation in learning and achieving more ideal teaching application effects. The voice changing device for teaching aids and toys provided by the utility model can improve students' knowledge and understanding of the frequency, loudness and timbre of sounds, thereby increasing the interest and educational value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a first-direction axonometric drawing of the sound-changing device for teaching aids and toys of the present invention;

[0018] Figure 2 This is a second-direction axonometric drawing of the sound-changing device for teaching aids and toys of the present invention;

[0019] Figure 3 This is a structural diagram of the installation portion of the voice changing device for teaching aids and toys of the present invention;

[0020] Figure 4 This is a schematic structural diagram of a sound amplifying cover in a sound changing device for teaching aids and toys according to the present invention;

[0021] Figure 5 This is a circuit diagram of a circuit board in a voice changing device for teaching aids and toys of the present invention;

[0022] Figure 6 The utility model is a schematic diagram of a circuit board in a voice changing device for teaching aids and toys.

[0023] BRIEF DESCRIPTION OF DRAWINGS

[0024] 1. loudspeaker;

[0025] 2. sound amplification cover; 201, mounting bottom plate; 202, horn-shaped sound amplification cylinder; 203, connecting line through hole;

[0026] 3. battery box;

[0027] 4. mounting part; 401, mounting ring; 402, multi-hole mounting panel; 403, side edge mounting gap; 404, lower edge mounting gap; 405, connecting lug; 406, first mounting hole; 407, second mounting hole;

[0028] 5. circuit board;

[0029] 6. first annular cover plate;

[0030] 7. second annular cover plate. DETAILED DESCRIPTION

[0031] The technical solutions of the present application will be described clearly and completely below in conjunction with embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0033] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically limited. In addition, the terms "mounting", "connecting", "connecting" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] As shown in Figures 1 to 6 The voice changing device for teaching aids and toys of the present application embodiment comprises a loudspeaker 1, a sound amplifier cover 2, a battery box 3, a mounting portion 4 and a circuit board 5. The mounting portion 4 is detachably mounted with the upper end of the battery box 3. The circuit board 5 is detachably mounted with the rear side of the mounting portion 4. The sound amplifier cover 2 is detachably mounted with the front side of the mounting portion 4. The loudspeaker 1 is detachably mounted with the inner side of the sound amplifier cover 2. Due to the detachable mounting mode between the loudspeaker 1, the sound amplifier cover 2, the battery box 3, the mounting portion 4 and the circuit board 5, the disassembly and assembly of the voice changing device are facilitated.

[0035] The circuit board 5 is provided with a microphone. The connecting line of the battery box 3 is detachably connected with the power interface J3 on the circuit board 5. The connecting line of the loudspeaker 1 is detachably connected with the loudspeaker interface J2 on the circuit board 5. Thus, the circuit connection between the loudspeaker 1, the battery box 3 and the circuit board 5 is facilitated.

[0036] When the voice changing device is assembled and the power is turned on, the microphone on the circuit board 5 can be spoken to. After a short pause, the voice changing sound can be emitted through the loudspeaker 1.

[0037] Thus, as a teaching aid, the voice changing device for teaching aids and toys of the present application embodiment is facilitated for disassembly and assembly, thus facilitating the explanation of the teaching teachers and the hands-on operation of the students, improving the participation of the students during learning, and achieving more ideal teaching application effect.

[0038] As a toy, the voice changing device for teaching aids and toys of the present application embodiment can realize the diversification of the sound, improve the recognition and understanding of the students on the frequency, loudness and tone color of the sound, increase the interestingness and educationalness, and cultivate the scientific interest and scientific thinking ability of the students.

[0039] Specifically, the mounting portion 4 comprises a mounting ring 401 and a porous mounting panel 402 fixed to the inner side of the mounting ring 401, the left and right sides of the porous mounting panel 402 and the inner side wall of the mounting ring 401 form side mounting gaps 403 respectively, and the lower side of the porous mounting panel 402 and the inner side wall of the mounting ring 401 form a lower mounting gap 404. Among them, the mounting ring 401 is used for detachable mounting with the battery box 3, the porous mounting panel 402 is used for mounting the sound cover 2 and the circuit board 5, and the side mounting gap 403 and the lower mounting gap 404 facilitate the connection line to pass through.

[0040] Among them, the connecting lug 405 is fixed to the bottom of the outer side wall of the mounting ring 401, and the connecting lug 405 is connected with the battery box 3 through bolts, which is convenient to disassemble. The connecting lug 405 is provided with a hollow chamber, and the mounting ring 401 is provided with a through port corresponding to the hollow chamber. The connecting line of the battery box 3 can pass through the hollow chamber, the through port and the lower mounting gap 404 in sequence and be detachably connected with the power supply interface J3 on the circuit board 5, which is convenient to operate.

[0041] Among them, the circuit board 5 and the rear side of the porous mounting panel 402 are connected by sponge adhesive, which facilitates the detachable mounting between the circuit board 5 and the mounting portion 4.

[0042] Specifically, the battery box 3 contains a battery, which is used to provide power supply for the voice changing device. The battery box 3 is also provided with a switch for controlling the on-off state of the battery power supply.

[0043] Specifically, the sound cover 2 comprises a mounting bottom plate 201 and a horn-shaped sound amplifying cylinder 202, and the small diameter end of the horn-shaped sound amplifying cylinder 202 is fixedly connected with the mounting bottom plate 201. Among them, the mounting bottom plate 201 and the front side of the porous mounting panel 402 are connected by screws, so as to facilitate the detachable mounting between the sound cover 2 and the mounting portion 4.

[0044] Among them, the loudspeaker 1 and the mounting bottom plate 201 are connected by sponge adhesive, so as to facilitate the detachable mounting between the loudspeaker 1 and the sound cover 2.

[0045] Among them, the mounting bottom plate 201 is provided with a connection line passing hole 203, and the connection line of the loudspeaker 1 can pass through the connection line passing hole 203 and the side mounting gap 403 in sequence and be detachably connected with the loudspeaker interface J2 on the circuit board 5, which is convenient to operate.

[0046] Specifically, the first annular cover plate 6 is arranged on the front side of the mounting portion 4, two first mounting holes 406 are arranged on the inner side wall of the mounting ring 401 near the front end face, the two first mounting holes 406 are respectively arranged in the left and right side mounting gaps 403, and the first annular cover plate 6 is detachably mounted on the first mounting holes 406 through screws. Since the first annular cover plate 6 is in a circular ring structure, the first annular cover plate 6 will not block the connection between the sound amplifier cover 2 and the perforated mounting panel 402, and the first annular cover plate 6 can also play a certain protective role on the front side of the mounting portion 4.

[0047] Specifically, the second annular cover plate 7 is arranged on the rear side of the mounting portion 4, two second mounting holes 407 are arranged on the inner side wall of the mounting ring 401 near the rear end face, the two second mounting holes 407 are respectively arranged in the left and right side mounting gaps 403, and the second annular cover plate 7 is detachably mounted on the second mounting holes 407 through screws. Since the second annular cover plate 7 is in a circular ring structure, the second annular cover plate 7 will not block the connection between the circuit board 5 and the perforated mounting panel 402, and the second annular cover plate 7 can also play a certain protective role on the rear side of the mounting portion 4.

[0048] As shown in Figure 5 and Figure 6 , the working principle of the circuit on the circuit board 5 is that the power supply provided by the battery box 3 is input through the power supply interface J3. If a power supply of 9V or more is used, an LM1117 voltage reducing chip U2 can be welded on the circuit board 5. If the power supply is close to 5V, the voltage reducing chip U2 does not need to be set. The microphone connection port is J1, which is used to install a microphone. After the microphone collects sound, the sound is input to the sound transducer chip U1 through a simple filter circuit. The sound transducer chip U1 changes the acoustic characteristics such as frequency, tone and resonance peak of the sound through a certain algorithm. Then the sound transducer chip U1 outputs the processed audio signal to the speaker interface J2. The speaker interface J2 transmits the audio signal to the speaker 1 through the connection line of the speaker 1, and the speaker 1 emits corresponding sound. Three resistors R1, R2 and R3, and six capacitors C1, C2, C3, C4, C5 and C6 are also connected on the circuit of the circuit board 5, so as to ensure the reliable work of the circuit board 5.

[0049] Among them, the circuit board 5 and the speaker 1 are connected through 3PIN lines, and the circuit board 5 and the battery box 3 are connected through 3PIN lines, and each 3PIN line has two OT terminals. That is, the circuit board 5 can modularize the bulk electronic components, and the 3PIN line connection can simplify the connection of the circuit, increase the stability, and has extremely low operation difficulty.

[0050] It should be noted that in the present embodiment, the sound changing chip U1 changes the frequency, tone and resonance peak of the sound by a certain algorithm, which is a technology in the prior art, and thus does not involve improvement of the method.

[0051] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A sound changing device for teaching aids and toys, characterized in that, The loudspeaker, the sound amplification cover, the battery box, the mounting part and the circuit board are included, the mounting part is detachably mounted with the upper end of the battery box, the sound amplification cover is detachably mounted with the front side of the mounting part, the loudspeaker is detachably mounted with the inner side of the sound amplification cover, and the circuit board is detachably mounted with the rear side of the mounting part.

2. The sound changing device for educational and playing tools according to claim 1, characterized in that, The mounting part includes a mounting ring and a porous mounting panel fixed to the inner side of the mounting ring, and the left and right sides of the porous mounting panel are respectively formed with side edge mounting gaps between the inner side walls of the mounting ring.

3. The sound changing device for educational and playing tools according to claim 2, characterized in that, A connecting lug is fixed to the bottom of the outer side wall of the mounting ring, and the connecting lug is connected with the battery box through bolts; the connecting lug is provided with a hollow chamber, and the mounting ring is provided with a through port corresponding to the hollow chamber; the connecting line of the battery box can be sequentially connected with the power interface on the circuit board through the hollow chamber, the through port and the lower edge mounting gap.

4. The sound changing device for educational and playing tools according to claim 2, characterized in that, The sound amplification cover includes a mounting bottom plate and a horn-shaped sound amplification cylinder, and the small diameter end of the horn-shaped sound amplification cylinder is fixedly connected with the mounting bottom plate.

5. The sound changing device for educational and playing tools according to claim 4, characterized in that, The mounting bottom plate is connected with the front side of the porous mounting panel through screws.

6. The sound changing device for educational and playing tools according to claim 4, characterized in that, The loudspeaker is connected with the mounting bottom plate through sponge adhesion.

7. The sound changing device for educational and playing tools according to claim 4, characterized in that, A connecting line passing hole is arranged on the mounting bottom plate, and the connecting line of the loudspeaker can be sequentially connected with the loudspeaker interface on the circuit board through the connecting line passing hole and the side edge mounting gap.

8. The sound changing device for educational and playing tools according to claim 2, characterized in that, The circuit board is connected with the rear side of the porous mounting panel through sponge adhesion.

9. The sound changing device for educational and playing tools according to claim 2, characterized in that, A first annular cover plate is further arranged on the front side of the mounting part, a first mounting hole is arranged on the inner side wall of the mounting ring close to the front end face, and the first annular cover plate is detachably mounted with the first mounting hole through screws.

10. The sound changing device for educational and playing tools according to claim 2, characterized in that, A second annular cover plate is further arranged on the rear side of the mounting part, a second mounting hole is arranged on the inner side wall of the mounting ring close to the rear end face, and the second annular cover plate is detachably mounted with the second mounting hole through screws.

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