CN109979421B - Active electronic board two-stringed bowed instrument head - Google Patents

Active electronic board two-stringed bowed instrument head Download PDF

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Publication number
CN109979421B
CN109979421B CN201910352020.8A CN201910352020A CN109979421B CN 109979421 B CN109979421 B CN 109979421B CN 201910352020 A CN201910352020 A CN 201910352020A CN 109979421 B CN109979421 B CN 109979421B
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piano
hole
headstock
holder
button
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CN109979421A (en
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/36—Accompaniment arrangements
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H3/00—Instruments in which the tones are generated by electromechanical means
    • G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
    • G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
    • G10H3/18—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a string, e.g. electric guitar

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

The invention provides an active electronic board two-stringed bowed instrument head, which is an electronic musical instrument head and aims to solve the problems that the existing product does not play a role in amplifying output, accompaniment output and the like. The functional knob can independently or synthetically adjust the playing and accompaniment volume, and the corresponding tool can loosen or fasten the piano rod fastening bolt through the back plate operation hole.

Description

Active electronic board two-stringed bowed instrument head
Field of the art
The invention relates to a head of an electronic musical instrument, in particular to a two-stringed bowed instrument head with an active electronic board.
(II) technical background
The existing heads of the electronic urheen and the electronic banhu have no power amplifier output and music accompaniment output functions, and induction signals generated by the sensors inside the heads during playing can be picked up only through external power amplifier equipment. If the accompaniment music is needed during playing; the existing head can be realized by other acoustic equipment. Because there is no built-in power amplifier, players cannot directly listen to their own performance and exercise using headphones. In practical use, because the supported peripheral devices are more, the existing head has a plurality of inconveniences in use.
(III) summary of the invention
The invention provides an active electronic board two-stringed bowed instrument head which solves the functional problems that the existing head has no power amplifier output, no music accompaniment output, no earphone can be directly used and the like.
The technical scheme adopted by the invention for solving the problems is as follows; the front placing groove is arranged in the decorative plate on the front surface of the body of the piano head. An electromagnetic inductor and a power amplifier integrated block are arranged in the groove. When the strings are played, the induction signals generated by the electromagnetic inductor are amplified by the power amplifier integrated block, and the inside of the integrated block is composed of corresponding electronic components and an amplifying circuit. The back of the body of the head is provided with a back placing groove and a back plate, and the back plate is provided with two holes for placing potentiometers. The shell and the lead part of the potentiometer are hidden in the rear placing groove, the functional knob of the potentiometer is arranged on the outer side of the back plate, a through hole of a piano stem in the vertical direction is arranged between the front groove and the rear groove of the piano head main body, and the inner diameter of the through hole is larger than the outer diameter of the piano stem used by a banhu or a Erhu in reality.
The invention is characterized in that a decorative cover plate is arranged above the head main body, a through hole in the up-down direction is also arranged on the cover plate and is opposite to the through hole of the stem of the head main body, the inner diameter of the through hole of the cover plate is in sliding fit with the outer diameters of the stems of the urheen and the banhu in reality, the stems in reality can be inserted into the through hole of the stem of the head main body from top to bottom through the through hole of the cover plate, a transverse internal threaded hole communicated with the through hole of the stem of the head main body is arranged below the rear placing groove, a corresponding fastening bolt is arranged in the hole, after the stems are inserted into the through hole of the stem of the head main body, the head main body can be tightly propped by the bolt, an operation hole opposite to the internal threaded hole is arranged below the rear backboard, and a user can use tools such as a screwdriver (screwdriver) to loosen or fasten the fastening bolt through the operation hole.
The invention provides a musical instrument head, which is characterized in that a musical instrument support is arranged below a musical instrument head main body, a rechargeable battery, an SD card 'reader', a U disk 'reader', button buttons and a button support are arranged in the musical instrument support, a battery charging socket, an audio output socket, an SD card jack, a U disk jack, a button outlet and a power switch are arranged at proper positions on the upper surface and the side surface of the musical instrument support, wherein a shell of the button buttons is fixed by the button support in the musical instrument support, the button heads of the buttons extend out of the button outlet, a wire connecting window is arranged on one surface of the musical instrument support at the joint of the musical instrument support and the musical instrument head main body, connecting wires between electronic devices in the musical instrument head can be connected through the window, screw holes in the supports are arranged at two ends of the button support, holes corresponding to the screw holes are also arranged at corresponding positions on the surface of the musical instrument support, the button support is fixedly connected with the back surface of the musical instrument support through screws, and when a user plays recorded audio files through the SD card 'reader' or the U disk 'reader', the musical instrument can be played through the button buttons; last song, next song, pause, play, etc.
The bottom of the head decorative cover plate is provided with a blind hole with internal threads, the upper and lower directions of the head main body are provided with screw rod through holes aligned with the blind hole, the joint surface of the head support and the bottom of the head main body is also provided with aligned screw rod through holes, and the screw rod can pass through the head support and the head main body from bottom to top through the through holes and then be screwed into the blind hole with internal threads of the decorative cover plate to be fastened, so that the head support, the head main body and the decorative cover plate are integrated.
The bottom of the support is provided with the bottom cover plate, the bottom cover plate can cover the bottom of the support from bottom to top, four corners of the bottom cover plate are provided with screw holes, four corners of the bottom of the support are provided with corresponding inner screw holes, and the bottom cover plate and the bottom of the support are fixed through screws and the screw holes.
The string hooking pin and the hooking base are arranged in front of the inside of the string support, one end of the hooking pin is provided with threads, the hooking base is provided with corresponding internal threaded holes, one end of the threads of the hooking pin can be screwed into the threaded holes of the hooking base (the hooking pin is used for hooking strings), and a hooking square opening is formed in each of the front side surface of the string support and the front end of the bottom cover plate, which correspond to the hooking pin, and can provide convenience for hooking strings.
The function knob of the head can independently adjust the playing power amplifier volume, the accompaniment volume output by the SD card or the U disk, and the audio output socket can provide audio output for external equipment and can also be directly inserted into an earphone to listen to the sound of a player.
The invention can be used for two-stringed bowed instrument or banhu respectively, when in use, the banhu code of the banhu is arranged at the upper position of the horizontal line of the decorative plate of the main body of the banhu, and the two-stringed instrument code is arranged at the lower position of the horizontal line, so that the tone color of the banhu or the banhu can be obtained.
The charging socket of the head can be externally connected with a corresponding charger to charge a rechargeable battery in the support, the power switch can control the power supply of the battery in the support, and all electronic devices in the head are connected by wires (specific connection schemes are not described in detail).
The invention relates to a circuit arrangement scheme in a power amplifier integrated block in a head, and electronic components, an electromagnetic sensor, an SD card, a U disk, a card reader, a string, and the like, which belong to the prior art and are not described in detail herein.
(IV) description of the drawings
FIG. 1 is a schematic top view of the body, trim, and back plate of the present invention.
FIG. 2 is a schematic front view of a rear placement tank of the present invention.
FIG. 3 is a side cross-sectional view of the assembled body of the present invention, a decorative plate, a back plate, and a schematic view of the location of the built-in electronics.
Fig. 4 is a front view of the back plate of the head of the present invention.
Fig. 5 is a schematic front view of a decorative plate of the head of the present invention.
FIG. 6 is a schematic diagram showing the assembly and connection of the decorative cover plate, the body, and the support of the head of the present invention.
Fig. 7 is a side cross-sectional view of a decorative cover plate of the inventive head.
Fig. 8 is a bottom elevation view of the head trim cover of the present invention.
FIG. 9 is a top view of a tray of a head according to the present invention and a schematic view of the locations of the electronic components inside the tray.
Fig. 10 is a schematic side view of a head rest and an internal position of a hooking pin and hooking base combined according to the present invention.
FIG. 11 is a front elevational view of a holder of a head according to the present invention, showing the internal positions of the holder after the combination of the hooking pin and the hooking base.
FIG. 12 is a side view of a combination of a button support, button and back of a face of a support of a head of the present invention.
FIG. 13 is a top view of the button support of the head of the present invention and the position of the button on the button support.
Fig. 14 is a schematic view of a combined connection, square mouth, hooking pin and hooking base of the bottom of the support and the bottom cover plate of the head of the invention.
FIG. 15 is a schematic view of the head of the present invention combined with a real stick.
(fifth) detailed description of the invention
With reference to fig. 1, 2, 3, 4 and 5, a front placement groove 3 is provided in the interior of the decorative plate 2 on the front face of the body 1. An electromagnetic inductor 4 and a power amplifier integrated block 5 are arranged in the groove. The back of the body 1 is provided with a back placing groove 6 and a back plate 7, and the back plate 7 is provided with a hole 8 for placing a potentiometer. The shell 9 of the potentiometer is hidden in the rear placing groove 6, and the functional knob 10 of the potentiometer is arranged on the outer side of the backboard 7. Between the front placing groove 3 and the rear placing groove 6, a through hole 11 for a musical instrument stem in the up-down direction is provided, and the inside diameter of the through hole is larger than the outside diameter of a musical instrument stem 12 used for a real banhu or a urheen.
The decorative cover plate 13 is arranged above the head main body 1 in combination with fig. 1, 2, 3, 4, 6, 7 and 8, and is provided with a through hole 14 in the vertical direction and is opposite to the through hole 11 of the bridge, and the inner diameter of the through hole 14 of the cover plate is in sliding fit with the outer diameter of the actual bridge 12. The actual piano stick 12 can be inserted into the piano stick through hole 11 from top to bottom through the cover plate through hole 14. A transverse internal threaded hole 15 communicating with the through hole 11 of the stem is provided below the rear placing groove 6, and a corresponding fastening bolt 16 is provided in the hole, and when the stem is inserted into the through hole 11 of the stem, the stem can be pressed tightly by the bolt 16. An operation hole 17 aligned with the female screw hole 15 is provided below the rear plate 7. The user can loosen or tighten the tightening bolt 16 through the operation hole 17 with a tool such as a screwdriver.
A support 18 is provided under the body 1 of the head of fig. 13 in combination with fig. 6, 7, 8, 9, 11, and 12. The inside of the organ support is provided with a rechargeable battery 19, an SD card reader 20, a U disk reader 21, a button 22 and a button bracket 23. The battery charging socket 24, the audio output socket 25, the SD card jack 26, the U disk jack 27, the button outlet 28 and the power switch 29 are arranged on the upper surface and the side surface of the musical instrument support. Wherein the button housing 30 is secured within the base by the button support 23 and the button head 22 of the button extends out of the button outlet 28. A wire connecting window 31 is provided on one surface of the support 18 at the junction of the support 18 and the bottom of the head body 1. The two ends of the button bracket 23 are provided with bracket internal threaded holes 32, and the corresponding positions on the surface of the support 18 are also provided with holes 33 corresponding to the holes. The button support 23 is fixedly connected with the back of the support surface in the support by a screw 34.
The bottom of the decorative cover plate 13 is provided with a blind hole 35 with internal threads in combination with fig. 1, 6, 7, 8 and 9. A lead screw hole 36 aligned with the blind hole 35 is provided in the up-down direction of the head body 1. The joint surface of the support 18 and the support at the bottom of the head body 1 is also provided with aligned screw rod through holes 37. The screw rod 38 passes through the screw rod through hole 37 of the support and the screw rod through hole 36 of the head body from bottom to top, and then is screwed into the internal thread blind hole 35 of the decorative cover plate for fastening, so that the support, the head body and the decorative cover plate are integrated.
In connection with fig. 14, a bottom cover 39 is provided at the bottom of the support 18, four corners of the bottom cover are provided with screw holes 40, and four corners of the bottom of the support are also provided with corresponding internal screw holes 41, and the bottom cover and the bottom of the support are fixed by screws 42.
In connection with fig. 9 to 10 and 11, a string hooking pin 43 and a hooking base 44 are provided on the front inside of the holder 18 of fig. 14. One end of the hooking pin 43 is provided with a thread (not shown in the figures), the hooking base 44 is also provided with a corresponding threaded hole (not shown in the figures), and one threaded end of the hooking pin 43 can be screwed into the threaded hole of the hooking base 44. A square opening 45 is formed in the front side of the bridge corresponding to the hooking pin 43, and a square opening 46 is formed in the front end of the bottom cover 39, and two square openings can facilitate hooking strings.
( Injecting; when the head of the invention is used for two-stringed bowed instrument and banhu respectively, the horizontal midline on the main body decorative board and Guan Qin code are arranged at the upper or lower position of the horizontal midline, and the detailed view of the description is omitted. The connection of wires among all electronic components in the head, the amplifying circuit in the power amplifying block and the like are not illustrated in the drawing. )

Claims (3)

1.有源电子板二胡琴头它包括在琴头主体正面的装饰板内部设有前放置槽，该槽内设有电磁感应器、功放集成块，当琴弦演奏时，电磁感应器所产生的感应信号可被功放集成块内部电子电路、电子元器件进行功率放大，琴头主体的背面设有后放置槽以及后背板，后背板上设有安置电位器的孔，电位器的壳体与导线部分隐藏于后放置槽内，电位器的功能旋钮置于背板外侧，在琴头主体的前后两个放置槽之间，设有上下方向的琴杆通孔，该通孔内径大于现实中的板胡或者二胡所用的琴杆外径，在琴头主体的上方设有装饰盖板，装饰盖板上设有上下方向的通孔并与琴头主体的琴杆通孔相对位，装饰盖板通孔的内径与现实中二胡、板胡琴杆的外径做滑动配合，现实中的琴杆可通过装饰盖板通孔自上而下插入琴头主体的琴杆通孔内，在后放置槽的下方设有与琴头主体的琴杆通孔相通的横向内螺纹孔，在该孔内配有相应的紧固螺栓，当现实琴杆插入琴头主体的琴杆通孔后，可被该螺栓顶紧，在后背板的下方设有一个与该内螺纹孔对位的操作孔，使用者可用相应工具通过该操作孔对紧固螺栓进行放松或紧固，琴头主体的下面设有一个琴托，琴托内部设置有充电电池、SD卡“读卡器”、U盘“读取器”、扣式按钮、按钮支架，在琴托的上面和侧面的适当位置，设有电池充电插座、音频输出插座、SD卡插孔、U盘插孔、按钮出孔、电源开关，其中扣式按钮的外壳在琴托内部被按钮支架所固定，按钮的钮头伸出按钮出孔，在琴托与琴头主体衔接处的琴托一面，开有导线连接窗口，琴头内部电子器件之间的连接导线可通过该窗口进行连接，在扣式按钮支架的两端设有支架内螺丝孔，琴托表面相应位置也设有与该螺丝孔相对应的孔，按钮支架在琴托内部与琴托面的背面通过螺丝与螺丝孔进行固定连接，琴头装饰盖板的底部设有带内螺纹的盲孔，在琴头主体的上下方向设有与该盲孔对位的螺丝杆穿孔，在琴托与琴头主体底部的琴托衔接面上，也设有对位的螺丝杆穿孔，螺丝杆可以通过上述穿孔由下而上的穿过琴托、琴头主体后，拧入装饰盖板的内螺纹盲孔内进行紧固，从而使琴托、琴头主体、装饰盖板成为一体，在琴托的底部设有底盖板，底盖板由下而上可以盖在琴托的底部，底盖板的四个角设有螺丝穿孔，而琴托底部的四个角设有相应的内螺纹孔，底盖板与琴托底部通过螺丝与螺丝孔进行固定，在琴托内部的前面，设有琴弦钩挂销以及钩挂基座，钩挂销的一端设有螺纹，钩挂基座上设有相应的内螺纹孔，钩挂销的螺纹一端可以拧入钩挂基座的螺纹孔内，在与钩挂销对应位置的琴托前侧面以及底盖板的前端，各自开有一个钩挂方口，该方口可为钩挂琴弦提供便利。1. Active electronic board Erhu headstock, which includes a front placement slot inside the decorative panel on the front of the headstock body. The slot is equipped with an electromagnetic sensor and a power amplifier integrated block. When the strings are played, the electromagnetic sensor generates The induction signal can be amplified by the internal electronic circuits and electronic components of the power amplifier integrated block. The back of the main body of the headstock is provided with a rear placement slot and a back plate. The back plate is provided with a hole for placing the potentiometer. The potentiometer's shell The body and wires are partially hidden in the rear placement slot. The functional knob of the potentiometer is placed outside the back plate. Between the front and rear placement slots of the headstock body, there is a piano rod through hole in the up and down direction. The inner diameter of the through hole is larger than In reality, the outer diameter of the piano rod used in banhu or erhu is provided with a decorative cover plate above the main body of the headstock. The decorative cover plate is provided with a through hole in the up and down direction and is opposite to the through hole of the piano rod in the main body of the headstock. Decoration The inner diameter of the cover plate through hole is slidingly matched with the outer diameter of the real erhu and banhu piano rods. The real piano rod can be inserted from top to bottom into the piano rod through hole of the main body of the headstock through the decorative cover plate through hole. There is a transverse internal threaded hole below the placement groove that communicates with the piano rod through hole of the headstock body. The hole is equipped with a corresponding fastening bolt. When the actual piano rod is inserted into the piano rod through hole of the headstock body, it can be Tightened by the bolt, there is an operating hole aligned with the internal threaded hole under the back plate. The user can use corresponding tools to loosen or tighten the fastening bolt through the operating hole. The underside of the headstock body It is equipped with a piano holder, and the piano holder is equipped with a rechargeable battery, an SD card "reader", a U disk "reader", a button button, and a button holder inside the piano holder. At appropriate positions on the top and sides of the piano holder, there are Battery charging socket, audio output socket, SD card socket, USB disk socket, button hole, and power switch. The shell of the button button is fixed by the button bracket inside the piano holder, and the button head extends out of the button hole. , there is a wire connection window on the side of the keyboard where the keyboard and the main body of the headstock connect. The connecting wires between the electronic components inside the headstock can be connected through this window. There are brackets at both ends of the button-type bracket. Screw holes, holes corresponding to the screw holes are also provided at corresponding positions on the surface of the piano holder. The button bracket is fixedly connected inside the piano holder and the back of the piano holder surface through screws and screw holes. The bottom of the decorative cover of the headstock is provided with The blind hole with internal threads is provided with a screw rod perforation aligned with the blind hole in the upper and lower directions of the headstock body. There is also an aligned screw rod on the connection surface between the piano base and the bottom of the headstock body. Through the above-mentioned perforations, the screw rod can pass through the piano base and the main body of the headstock from bottom to top, and then be screwed into the internally threaded blind hole of the decorative cover plate for fastening, so that the piano base, the main body of the headstock, and the decorative cover plate can be tightened. Become one, there is a bottom cover plate at the bottom of the piano holder, the bottom cover plate can be covered on the bottom of the piano holder from bottom to top, the four corners of the bottom cover plate are provided with screw holes, and the four corners of the bottom of the piano holder are provided with There are corresponding internal threaded holes. The bottom cover and the bottom of the piano holder are fixed through screws and screw holes. In the front of the piano holder, there is a string hook pin and a hook base. One end of the hook pin is provided with a thread. , the hooking base is provided with corresponding internal threaded holes. The threaded end of the hooking pin can be screwed into the threaded hole of the hooking base. The front side of the piano holder and the front end of the bottom cover are located at the positions corresponding to the hooking pins. , each has a hooking square opening, which can provide convenience for hooking the strings. 2.根据权利要求1所述的有源电子板二胡琴头其特征在于，琴头的功能旋钮可以对演奏时的功放输出音量、SD卡“读卡器”或者U盘“读取器”所输出的伴奏音量进行独立调整，音频输出插座可对外部音响设备提供音频输出，也可直接插入耳机为演奏者听音。2. The active electronic board Erhu headstock according to claim 1, characterized in that the functional knob of the headstock can control the power amplifier output volume, SD card "reader" or U disk "reader" during performance. The output accompaniment volume can be adjusted independently. The audio output socket can provide audio output to external audio equipment, and can also be directly inserted into headphones to listen to the performer. 3.根据权利要求1所述的有源电子板二胡琴头其特征在于，该琴头可分别用于二胡或板胡，使用时板胡的琴码置于琴头主体装饰板水平中线的偏上位置，二胡琴码置于水平中线偏下位置，从而可获得二胡、板胡的各自音色。3. The active electronic board Erhu headstock according to claim 1, characterized in that the headstock can be used for Erhu or Banhu respectively, and when in use, the bridge of the Banhu is placed above the horizontal centerline of the decorative plate of the main body of the headstock. , the erhu piano code is placed slightly below the horizontal center line, so that the respective timbres of erhu and banhu can be obtained.
CN201910352020.8A 2019-04-29 2019-04-29 Active electronic board two-stringed bowed instrument head Active CN109979421B (en)

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