Electronic twisted string instrument
By introducing a motor, keys, microswitches, and conversion modules into the stringed instrument, the playing process of the stringed instrument is simulated, solving the problem of the stringed instrument's complex structure and difficulty in maintenance, and realizing the simplified design and easy maintenance of the electronic stringed instrument.
Patent Information
- Application Number
- CN202422850085.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-11-21
AI Technical Summary
The existing stringed instrument has a complex structure and is difficult to maintain.
Using a combination of motor, keys, microswitches, and conversion modules, the motor rotates to simulate the sound of a disc rubbing against strings, the microswitches control the pitch and duration, and the conversion module converts the signal into a MIDI signal for output, thus realizing the simulated playing of an electronic harpsichord.
The structure of the harpsichord has been simplified, making it easier to maintain, and it eliminates the need for physical strings, thus reducing maintenance difficulty.
Smart Images
Figure CN223728458U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of musical instrument, concretely relates to an electronic harp. BACKGROUND
[0002] The harp is a kind of western European folk stringed instrument, and the traditional harp has a base of a violin-like case, and three parallel strings are pulled up.The lower part of the string position is provided with a wooden thick circular plate protruding from the case, the axis of the circular plate is connected with the rotating handle at the tail of the case, and the string pressing device in the upper half of the case is provided with a special keyboard.Therefore, the harp has a fixed chord resonance, and the tone is rich in gradation, which is used in various music.
[0003] During the performance of the harp, the player leans against the chest with the case on the thigh, controls the sound height of the lowest string (the upper two strings are generally tuned to the fifth degree of bass) by using the keyboard with the left hand, and rotates the handle slowly to make the circular plate rub all three strings like the bow of the violin to produce sound with the right hand.
[0004] However, the harp in the prior art has a complex structure and is difficult to maintain. CONTENT OF THE UTILITY MODEL
[0005] The utility model provides an electronic harp, which is used to solve the technical problem of the complex structure of the harp in the prior art.
[0006] The utility model is implemented by the following technical scheme:
[0007] An electronic harp, comprising:
[0008] A case;
[0009] A motor, the case has a cavity, the motor is installed in the cavity, and the rotating shaft of the motor extends out of the case;
[0010] A plurality of keys, the plurality of keys are slidably installed on the case in a first direction, and the plurality of keys are arranged in a second direction, and the first direction and the second direction are perpendicular to each other;
[0011] A plurality of micro switches, the plurality of micro switches are installed on the case, and the plurality of keys and the plurality of micro switches are one-to-one correspondingly arranged, and the keys are used to drive the on-off of the corresponding micro switches;
[0012] A conversion module, installed in the case and electrically connected with the motor and the micro switches, is used to receive the signals of the motor and the micro switches and convert them into MIDI signals.
[0013] Further, the conversion module comprises:
[0014] A PCB circuit board is fixedly installed in the piano case, and a plurality of micro switches are installed on the PCB circuit board.
[0015] A single-chip microcomputer is installed on the PCB circuit board.
[0016] Further, the plurality of keys include a plurality of first keys and a plurality of second keys, the first keys and the second keys are arranged in a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.
[0017] Further, the first key comprises:
[0018] A first mounting portion, a plurality of first through holes adapted to the first mounting portion are formed in one end of the piano case, and the first mounting portion is slidingly installed in the first through hole.
[0019] A first pressing portion is fixedly installed at one end of the first mounting portion, and the first pressing portion is used to drive the corresponding micro switch.
[0020] Further, the second key comprises:
[0021] A second mounting portion, a plurality of second through holes adapted to the second mounting portion are formed in one end of the piano case, and the second mounting portion is slidingly installed in the second through hole.
[0022] A second pressing portion is fixedly installed on the bottom wall of the second mounting portion, and the second pressing portion is used to drive the corresponding micro switch.
[0023] Further, a plurality of accommodation holes are formed in one end of the piano case, and a plurality of the first pressing portions and the plurality of second pressing portions are arranged one by one in the plurality of accommodation holes, and the moving reed of the plurality of micro switches respectively extends out of the piano case through a plurality of corresponding accommodation holes.
[0024] Further, the length of the second mounting portion in the first direction is greater than the length of the first mounting portion in the first direction.
[0025] Further, a plurality of limiting screws are provided, and the plurality of limiting screws are respectively screwed at one end of the first mounting portion and the second mounting portion away from the first pressing portion.
[0026] Further, a debugging button is electrically connected to the conversion module.
[0027] Further, a crank is connected to the rotating shaft of the motor.
[0028] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0029] The electronic stringed instrument provided by the utility model comprises a piano box, a motor, keys, micro switches and a conversion module, the piano box has a cavity, the motor is installed in the cavity, a rotating shaft of the motor extends out of the piano box, the number of the keys is multiple, the multiple keys are slidably installed on the piano box along a first direction, the multiple keys are arranged at intervals along a second direction, the first direction and the second direction are arranged perpendicularly to each other, the number of the micro switches is multiple, the multiple micro switches are all installed on the piano box, and the multiple keys and the multiple micro switches are arranged in one-to-one correspondence, the keys are used for driving on-off of the corresponding micro switches, the conversion module is installed in the piano box and is electrically connected with the motor and the micro switches, and the conversion module is used for receiving signals of the motor and the micro switches and converting the signals into MIDI signals for output.
[0030] Through the above structure, when the electronic stringed instrument is played, the electronic stringed instrument is connected to a computer terminal through a data line, then the motor rotating shaft is driven to rotate, the rotating speed information of the motor is transmitted to the conversion module, meanwhile, the keys are pressed, the keys drive the corresponding micro switches, and the electric signals are transmitted to the conversion module, the conversion module converts the electric signals into MIDI signals for output, the analog signals are output after terminal processing, so that the playing simulation of the stringed instrument is realized, the speed of the motor is controlled to simulate the sound of the round plate rubbing the string, and the on-off of the different micro switches is controlled to simulate the pitch and duration of different positions, therefore, the motor, the micro switches and the conversion module are arranged, so that the string is not needed, the structure of the electronic stringed instrument is simpler, and the maintenance is more convenient. BRIEF DESCRIPTION OF DRAWINGS
[0031] The drawings described herein are used to provide further understanding of the embodiments of the utility model and form part of the application, and do not constitute limitation to the embodiments of the utility model.
[0032] Figure 1 The structure schematic diagram of the electronic stringed instrument provided by the embodiments of the utility model;
[0033] Figure 2 The another structure schematic diagram of the electronic stringed instrument provided by the embodiments of the utility model;
[0034] Figure 3 The another structure schematic diagram of the electronic stringed instrument provided by the embodiments of the utility model;
[0035] Figure 4 The explosion view of the electronic stringed instrument provided by the embodiments of the utility model;
[0036] Figure 5The structure schematic view of the first key is provided for the embodiment of the utility model.
[0037] Figure 6 The structure schematic view of the second key is provided for the embodiment of the utility model.
[0038] Markings in the drawings and corresponding component names:
[0039] 1 - piano box, 11 - cavity, 12 - first through hole, 13 - second through hole, 2 - motor, 3 - key, 31 - first key, 311 - first mounting portion, 312 - first pressing portion, 32 - second key, 321 - second mounting portion, 322 - second pressing portion, 4 - micro switch, 5 - conversion module, 51 - pcb circuit board, 52 - single-chip microcomputer, 6 - limit screw, 7 - debugging button, 8 - crank. DETAILED DESCRIPTION
[0040] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with embodiments and drawings, and the schematic embodiment of the utility model and its description are only used to explain the utility model, and not as a limitation on the utility model.
[0041] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component.
[0042] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the utility model and simplify the description, and therefore cannot be understood as indicating or implying that the device or element 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 utility model.
[0043] In addition, the terms "first", "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise explicitly and specifically limited. EMBODIMENT
[0044] The embodiment provides an electronic stringed instrument, which aims at solving the technical problem of complex structure of the stringed instrument in the prior art.
[0045] The sound box 1 comprises a front plate, two mounting plates and a back plate, and is arranged along a first direction, that is, the thickness direction of the sound box 1 is the first direction, and the front plate, the two mounting plates and the back plate are connected together through bolts, so that the front plate, the two mounting plates and the back plate connected through the bolts are more convenient to disassemble and assemble, thereby being more convenient to maintain.
[0046] The sound box 1 has a cavity 11, the motor 2 is installed in the cavity 11, and the rotating shaft of the motor 2 extends out of the sound box 1, that is, the front ends of the two mounting plates are provided with mounting grooves close to the left ends of the mounting plates, and the rotating shaft of the motor 2 extends to the left ends of the mounting plates and extends out of the mounting grooves, so that the rotating shaft extending out of the sound box 1 is more convenient for a player to rotate.
[0047] The number of the keys 3 is multiple, the multiple keys 3 are slidably installed on the sound box 1 along the first direction, and the multiple keys 3 are arranged at intervals along a second direction, the first direction and the second direction are perpendicular to each other, and the second direction is the length direction of the mounting plate, the keys 3 of the electronic stringed instrument provided by the embodiment are arranged in the mode of imitating the keys 3 of the stringed instrument, so that beginners can play the stringed instrument in a correct mode.
[0048] The number of the micro switches 4 is multiple, the multiple micro switches 4 are all installed on the sound box 1, and the multiple keys 3 and the multiple micro switches 4 are arranged in one-to-one correspondence, the keys 3 are used for driving the corresponding micro switches 4 to be turned on or turned off, so that the keys 3 and the micro switches 4 are arranged in one-to-one correspondence, different keys 3 control different micro switches 4 to send different electric signals.
[0049] The conversion module 5 is installed in the sound box 1 and is electrically connected with the motor 2 and the micro switches 4, the conversion module 5 is used for receiving the signals sent by the motor 2 and the micro switches 4 and converting the signals into MIDI electric signals, so that the rotation speed of the motor 2 is converted into a MIDI signal through the conversion module 5, and the electric signals sent by different micro switches 4 are converted into MIDI signals, then the MIDI signals are converted into analog signals through a terminal, and the conversion of the MIDI signals into the analog signals is the prior art and will not be described herein.
[0050] Through the above structure, in the playing of the electronic stringed instrument provided by the utility model, the electronic stringed instrument is connected to the computer terminal through the data line, then the motor 2 is driven to rotate, the rotating speed information of the motor 2 is transmitted to the conversion module 5, meanwhile, the keys are pressed, the keys drive the corresponding microswitches 4, and the electric signals are transmitted to the conversion module 5, the conversion module 5 converts the electric signals of the two into MIDI signals and outputs, and the analog signals are output after terminal processing, so that the playing simulation of the stringed instrument is realized, the speed of the motor 2 is controlled to simulate the sound of the round plate friction string, and the on-off of the different microswitches 4 is controlled to simulate the pitch and duration of different positions, therefore, the string is not needed through the setting of the motor 2, the microswitches 4 and the converter, so that the structure of the electronic stringed instrument provided by the utility model embodiment is simpler and more convenient to maintain.
[0051] An optional embodiment of the utility model is as follows: the conversion module 5 comprises a pcb circuit board 51 and a single-chip microcomputer 52, wherein:
[0052] The pcb circuit board 51 is fixedly installed in the piano case 1, the plurality of microswitches 4 are installed on the pcb circuit board 51, and the pcb circuit board 51 is detachably installed on any mounting plate through bolts, so that the circuit board is detachably installed, and maintenance and replacement are facilitated.
[0053] The single-chip microcomputer 52 is installed on the pcb circuit board 51, the plurality of microswitches 4 and the motor 2 are communicatively arranged with the single-chip microcomputer 52 through the setting of the pcb circuit board 51, the electric signals of the rotating direction and speed of the motor 2 and the duration of each microswitch 4 are received through the setting of the single-chip microcomputer 52, the received signals are converted into MIDI signals, so that the string is not needed, and the structure of the electronic stringed instrument is simpler and more convenient to maintain.
[0054] An optional embodiment of the utility model is as follows: the plurality of keys 3 comprise a plurality of first keys 313 and a plurality of second keys 323, the first keys 313 and the second keys 323 are arranged in the third direction, the first direction, the second direction and the third direction are arranged perpendicular to each other in pairs, the third direction is the height direction of the piano case 1, the plurality of first keys 313 form a first key group 313, the plurality of second keys 323 form a second key group 323, and the first key group 313 and the second key group 323 are arranged in an up-down manner, so that the setting of the two key groups 3 is simulated, and the learner and the player are facilitated.
[0055] Optionally, the first key 313 comprises a first mounting portion 311 and a first pressing portion 312, wherein:
[0056] The first installation part 311 is slidably installed in the first through hole 12, that is, the first through hole 12 penetrates the front end and the rear end of the sound box 1, and the first installation part 311 is slidably installed in the first through hole 12.
[0057] The first pressing part 312 is fixedly installed at one end of the first installation part 311, and the first pressing part 312 is used for driving the corresponding micro switch 4.
[0058] Optionally, the second key 323 comprises a second installation part 321 and a second pressing part 322.
[0059] The second installation part 321 is slidably installed in the second through hole 13, that is, the second through hole 13 penetrates the front end and the rear end of the sound box 1, and the second installation part 321 is slidably installed in the second through hole 13.
[0060] The second pressing part 322 is fixedly installed on the bottom wall of the second installation part 321, and the second pressing part 322 is used for driving the corresponding micro switch 4.
[0061] An optional embodiment of the embodiment is as follows: the sound box 1 is provided with a plurality of accommodation holes, the plurality of accommodation holes are respectively arranged in one-to-one correspondence with the plurality of first pressing parts 312 and the plurality of second pressing parts 322, and the action springs of the plurality of micro switches 4 respectively extend out of the sound box 1 through the plurality of corresponding accommodation holes, so that the action springs of the micro switches 4 extend out of the sound box 1, the first pressing part 312 and the second pressing part 322 are used for pressing the action springs of the corresponding micro switches 4, when one of the micro switches 4 needs to be pressed, the corresponding key 3 is driven to move towards the micro switch 4, and when the micro switch 4 needs to be disconnected, the key 3 only needs to be released, because the electronic stringed instrument is placed on the thighs of a player during playing, and the key 3 is placed downwardly and obliquely, so that the key 3 moves away from the micro switch 4 due to the gravity of the key 3, so that the corresponding micro switch 4 is disconnected.
[0062] An optional embodiment of the embodiment is as follows: the length of the second installation part 321 in the first direction is greater than the length of the first installation part 311 in the first direction, that is, the length of the lower key 3 is greater than the length of the upper key 3, so that the player can distinguish and press the lower key 3.
[0063] An optional embodiment of the present embodiment is as follows: further comprising a plurality of limiting screws 6, which are respectively screwed at the ends of the first mounting portion 311 and the second mounting portion 321 away from the first pressing portion 312. In this way, the limiting screws 6 limit the sliding distance of the key 3 in the piano box 1, thereby avoiding the first mounting portion 311 and the second mounting portion 321 from falling out of the piano box 1. Moreover, when the key 3 needs to be replaced or maintained, the key 3 can be taken out of the piano box 1 by only unscrewing the limiting screws 6, which facilitates the disassembly and assembly of the key 3.
[0064] An optional embodiment of the present embodiment is as follows: further comprising a debugging button 7, which is electrically connected with the conversion module 5. In this way, the debugging button 7 facilitates the player to tune before playing.
[0065] An optional embodiment of the present embodiment is as follows: further comprising a crank 8, which is connected with the rotating shaft of the motor 2. In this way, the crank 8 is more convenient for the player to rotate the rotating shaft of the motor 2.
[0066] The above detailed description is further used to explain the purpose, technical scheme and beneficial effects of the present application. It should be understood that the above description is only a specific embodiment of the present application and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An electronic stringed instrument, characterized by, Include: Piano box (1); Motor (2), the piano box (1) has a cavity (11), the motor (2) is installed in the cavity (11), and the rotating shaft of the motor (2) extends out of the piano box (1); Piano key (3), a plurality of, a plurality of the piano key (3) can be installed on the piano box (1) along the first direction, and a plurality of the piano key (3) is arranged along the second direction, the first direction and the second direction are perpendicular to each other; Micro switch (4), a plurality of, a plurality of the micro switch (4) is installed on the piano box (1), and a plurality of the piano key (3) and a plurality of the micro switch (4) are arranged one by one, the piano key (3) is used to drive the on-off of the corresponding micro switch (4); Conversion module (5) is installed in the piano box (1), and is electrically connected with the motor (2) and the micro switch (4), the conversion module (5) is used for receiving the signal of the motor (2) and the micro switch (4) and converting into MIDI signal output.
2. An electronic stringed instrument according to claim 1, wherein The conversion module (5) comprises: Pcb circuit board (51) is fixedly installed in the piano box (1), a plurality of the micro switch (4) is installed on the pcb circuit board (51); Single-chip microcomputer (52) is installed on the pcb circuit board (51).
3. An electronic stringed instrument according to claim 2, wherein A plurality of the piano key (3) comprises a plurality of first piano key (31) and a plurality of second piano key (32), the first piano key (31) and the second piano key (32) are arranged along the third direction, the first direction, the second direction and the third direction are perpendicular to each other.
4. An electronic stringed instrument according to claim 3, wherein The first piano key (31) comprises: First installation part (311), one end of the piano box (1) is provided with a plurality of first through hole (12) matched with the first installation part (311), the first installation part (311) is slidably installed in the first through hole (12); First pressing part (312) is fixedly installed at one end of the first installation part (311), and the first pressing part (312) is used to drive the corresponding micro switch (4).
5. An electronic stringed instrument according to claim 4, wherein The second piano key (32) comprises: Second installation part (321), one end of the piano box (1) is provided with a plurality of second through hole (13) matched with the second installation part (321), the second installation part (321) is slidably installed in the second through hole (13); Second pressing part (322) is fixedly installed on the bottom wall of the second installation part (321), and the second pressing part (322) is used to drive the corresponding micro switch (4).
6. An electronic stringed instrument according to claim 5, wherein One end of the piano box (1) is provided with a plurality of let hole, a plurality of the let hole is arranged one by one with a plurality of the first pressing part (312) and the plurality of second pressing part (322), and the moving spring sheet of a plurality of the micro switch (4) extends out of the piano box (1) through a plurality of corresponding let hole.
7. An electronic stringed instrument according to claim 6, wherein The length of the second installation part (321) in the first direction is greater than the length of the first installation part (311) in the first direction.
8. An electronic stringed instrument according to claim 7, wherein Still include limit screw (6), a plurality of, a plurality of the limit screw (6) is screwed in the first installation part (311) and the second installation part (321) away from the first pressing part (312) one end respectively.
9. An electronic stringed instrument according to claim 1, wherein Still include debugging button (7), with the conversion module (5) electric connection.
10. An electronic stringed instrument according to any one of claims 1-9, characterized in that Still include crank (8), is connected to the rotating shaft of the motor (2).