CN208861650U - A kind of piano pressure spline - Google Patents
A kind of piano pressure spline Download PDFInfo
- Publication number
- CN208861650U CN208861650U CN201821430272.5U CN201821430272U CN208861650U CN 208861650 U CN208861650 U CN 208861650U CN 201821430272 U CN201821430272 U CN 201821430272U CN 208861650 U CN208861650 U CN 208861650U
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- piano
- spline
- card slot
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- pcb card
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- 238000001514 detection method Methods 0.000 claims abstract description 37
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- 230000006872 improvement Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 8
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- 238000000034 method Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
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- 238000004891 communication Methods 0.000 description 1
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- 230000003247 decreasing effect Effects 0.000 description 1
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Abstract
The utility model relates to a kind of pianos to press spline, including pressing spline ontology, the pressure spline body central offers through slot, and pressure spline ontology front offers 36 piano black key detection holes, and pressure spline body bottom portion front end offers piano white key detection slot；Glass wedged groove, top layer PCB card slot and bottom PCB card slot are additionally provided on the piano pressure spline ontology, the top layer PCB card slot and bottom PCB card slot are for placing PCB circuit board, the glass wedged groove is arranged in parallel with the top layer PCB card slot, and be arranged above the top layer PCB card slot, the glass wedged groove is used to place transparent glass and shows the light of LED.The utility model provides a kind of novel piano pressure spline, by in circuit board, black key and the white key detection device for wherein placing corresponding function, it only needs to replace pressure spline, it can make traditional piano that can retain the beautiful timbre that traditional piano machinery occurs, it can communicate with each other again with electronic equipment, the traditional piano of realization is merged with electronic equipment.
Description
Technical field
The utility model relates to teaching auxiliary device fields more particularly to a kind of piano to press spline.
Background technique
In order to solve the problems, such as that traditional piano is intelligentized, the tone color of such as mechanical sounding cannot be converted into electronic signal, directly
It interconnects and communicates with electronic equipments such as pad, phone, learning software App cannot be used to assist practicing qin, cause qin difficulty high, study
Interest reduces, and learning efficiency is low.
And the auxiliary device of some traditional pianos is placed on fingerboard, and no and piano combines together, it is easy to move,
Also the beauty of piano entirety is affected.
There are also some devices to be placed in below fingerboard, needs to dismantle fingerboard, destroys the original tone color of piano,
Assembling is complicated, and the tuner of profession is needed to rectify sound etc..
Scheme one: teaching auxiliary device currently on the market is placed on fingerboard mostly.The device is placed in piano
On keyboard, no and piano combines together, influences beauty.And occupancy keyboard tip length 15mm or so is even more, height is about
10mm or so is even more.Working principle: when piano, with the state of infrared photoelectric sensor acquisition keyboard, piano is white
Key is with reflective infrared photoelectric sensor sample, and piano black key is with the sampling of correlation infrared photoelectric sensor.By the keyboard of acquisition
State transfer drives corresponding led according to the position of keyboard to mcu, mcu.Led and keyboard correspond, and mcu is used
GPIO mouthfuls of driving led.
The shortcomings that above-mentioned technical proposal, is:
The device is placed on fingerboard, and no and piano combines together, influences beauty, and occupy keyboard tip length
15mm or so is even more, and height about 10mm or so is even more.
Scheme two: also having part currently on the market is that teaching auxiliary device is embedded in inside piano, is placed in piano
Below key.When piano, with the state of infrared photoelectric sensor acquisition keyboard, white key is with reflective sampling, and black key is with right
Penetrate formula sampling.The keyboard state of acquisition is transferred to mcu, mcu drives corresponding led according to the position of keyboard.
The disadvantages of this solution has:
1, mainboard sensor is placed in below keyboard, and lamp bar is placed in shell.Installation is complicated, needs to dismantle keyboard, pacifies again
Professional person is just needed to carry out tuner debugging when filling keyboard.
2, piano is destroyed, needs to punch installation etc. on piano upper box, is unfavorable for after-sales service etc..
The shell of piano includes top cover, visits, pedestal of visiting, cover of keyboard, pressure spline etc..
These shells play the role of keeping attractive appearance in support and protection piano.These shells are not related to sound
Ring sonification system.Wherein pressure spline is generally used for the logo of display piano producer, and blocks components on the inside of keyboard.The peace of shell
It is simple to fill step.Successively erection sequence is pressure spline, pedestal of visiting, visits, top cover.Applicants have found that in pressure key
White key has 5mm mirror surface still for acquiring white key reflectance data below item.Based on this, applicant develops a kind of device can
Traditional piano is circulated, solves problem above.Infrared photoelectric sensor and LED lamp are all placed in pressure spline, can be applicable in
In all 88 key tradition pianos, it is only necessary to use this device, can easily realize intelligence.And disassembly keyboard is not needed, only more
Change pressure spline.
Summary of the invention
To the problems of the prior art, the utility model provides a kind of piano pressure spline, can easily realize traditional piano
It is intelligent.External auxiliary teaching device is not needed, does not need complicated dismounting keyboard yet and this device is installed.
In order to solve the above problem, the solution of the utility model is a kind of piano pressure spline, including pressure spline ontology, institute
It states pressure spline body central and offers through slot, pressure spline ontology front offers 36 piano black key detection holes, each
Piano black key detection hole corresponds to 1 piano black key, and pressure spline body bottom portion front end offers piano white key detection slot；
Glass wedged groove, top layer PCB card slot and bottom PCB card slot, the top are additionally provided on the piano pressure spline ontology
For placing PCB circuit board, the PCB circuit board placed in the bottom PCB card slot is used for for layer PCB card slot and bottom PCB card slot
Fingerboard movement is detected, is provided with LED light, the LED light and key in the PCB circuit board placed in the top layer PCB card slot
Disk corresponds, and the PCB circuit board placed in the top layer PCB card slot passes through the LED being disposed thereon and shows that fingerboard is
No to press, the glass wedged groove is arranged in parallel with the top layer PCB card slot, and is arranged above the top layer PCB card slot, described
Glass wedged groove is used to place transparent glass and shows the light of LED.
As an improvement, the bottom PCB card slot is horizontally set on left trough rim and the corresponding position of right trough rim of through slot
On.
As an improvement, the slot of left and right two of the glass wedged groove and the dip-parallel setting through slot of the top layer PCB card slot
Bian Shang, left trough rim are lower than right trough rim, and inclination angle is 15-40 degree.
As an improvement, the spacing of the glass wedged groove and the top layer PCB card slot is within 3mm.Led is needed apart from glass
Aperture that is clear, being of moderate size could be obtained within plane 3mm.
As an improvement, the pressure spline ontology back bottom is inclined-plane, the oblique angle on the back bottom inclined-plane is 45-75
Degree.Pressure spline is encountered when can be avoided the pole tilting at rear when keyboard is pressed.
As an improvement, further include the hole USB, the hole USB is set to the pressure positive lower left of spline ontology, mobile power source or
Direct current 5V electricity is powered to PCB circuit board by the hole USB or to the power supply power supply in PCB circuit board.
As an improvement, further including communicating hole, the communicating hole is set to the lower left at the pressure spline ontology back side, the communication
For avoiding wireless signal from being blocked or shielded by aluminum profile metal material, pressure spline ontology often uses aluminum profile metal material system in hole
At.
As an improvement, further including connecting hole, the connecting hole, the connecting hole is set to pressure spline bodies top and bottom
The left and right sides, the connecting hole presses spline to piano for being fixedly connected with piano.
From the above, it can be seen that the utility model, which has the advantage that, only needs to replace pressure spline, the application's
Press circuit board, black key and the white key detection device etc. that corresponding function is placed in spline, it will be able to make traditional piano that can retain biography
The beautiful timbre that piano machinery of uniting occurs, and can communicate with each other with electronic equipment, the traditional piano of realization is merged with electronic equipment.
The device, which occupies black key end distance, can be decreased to 10mm.Within glass planar distance led 3mm, it can show
The aperture that led is clear, is of moderate size.The oblique angle on back bottom inclined-plane is 45-75 degree, can be avoided the bar of key when keyboard is pressed
Son encounters pressure spline when tilting.
Circuit board, black key and white key detection device of corresponding function etc. can refer to following design:
A kind of detection, guidance and the error correction device of fingerboard movement, including bottom PCB circuit board, top layer PCB circuit
Plate, black key detection device and white key detection device, piano have 88 keyboards, including 52 white keys and 36 black keys, the black key
Detection device is 36, and is corresponded with 36 black keys, and the white key detection device is 52, and a pair of with 52 white keys one
It answers；
The black key detection device includes an infrared photo-emitter and an infrared electro receiver, the white key inspection
Surveying device includes reflective infrared photoelectric detection sensor, and the black key detection device and white key detection device are mounted on bottom
In PCB circuit board, the bottom PCB circuit board is connect with the top layer PCB circuit board, is arranged in the top layer PCB circuit board
There is LED display module for showing whether keyboard is pressed.
As an improvement, the bottom PCB circuit board includes one piece of motherboard and seven the first daughter boards, the top layer PCB circuit
Plate includes second daughter board and three third daughter boards, and 1 black key detection device and 3 white key detections are provided on the motherboard
Device, first daughter board are provided with 5 black key detection devices and 7 white key detection devices.
As an improvement, main MCU is provided on the motherboard, and USB female seat, wired or wireless transmission module, a single company
Connect device and 1 FPC connector.
As an improvement, sub- MCU is provided on first daughter board, two single connectors.
As an improvement, it is double to be provided with LED drive chip, LED light, 1 FPC connector and 1 on second daughter board
Connector, the second daughter board LED light totally 16 groups of 32 LED light can combine for red green two groups or other colors.
As an improvement, LED drive chip, LED light and 2 double connectors are provided on the third daughter board, described
Three daughter board LED light totally 24 groups of 48 LED light can combine for red green two groups or other colors.
As an improvement, the motherboard is connect by SPI with the second daughter board, the motherboard passes through SPI and three third daughter board
It is sequentially connected, the main MCU on the motherboard is sequentially connected by the sub- MCU of UART and seven first daughter boards.
As an improvement, the white key detection device is acquired data to white key by ADC.
As an improvement, the black key detection device is acquired data to black key by GPIO.
As an improvement, the wireless transport module being arranged on the motherboard is bluetooth module.
Detailed description of the invention
Fig. 1 is the schematic diagram that the device of the utility model is mounted on piano；
Fig. 2 is the structural schematic diagram of the pressure spline ontology of the utility model；
Fig. 3 is the utility model pressure positive partial structural diagram of spline ontology；
Fig. 4 is the partial structural diagram of the utility model pressure spline body bottom portion front end；
Fig. 5 is the right view 1 of the utility model pressure spline ontology；
Fig. 6 is the partial structural diagram at the utility model pressure spline ontology back side；
Fig. 7 is the right view 2 of the utility model pressure spline ontology；
Fig. 8 is the design schematic diagram of the utility model top layer PCB circuit board and bottom PCB circuit board；
Fig. 9 is the conceptual schematic drawing of the utility model top layer PCB circuit board and bottom PCB circuit board；
Figure 10 is TOP layers of the utility model PCB circuit board of explosive view；
Figure 11 is BOTTOM layers of the utility model PCB circuit board of explosive view；
Figure 12 is the detection process schematic diagram of the utility model white key detection device；
Figure 13 is the detection process schematic diagram of the utility model black key detection device；
Appended drawing reference: 1, pressure spline ontology, 2, through slot, 3, black key detection hole, 4, white key detection slot, 5, glass wedged groove,
6, top layer PCB card slot, 7, bottom PCB card slot, 8, the hole USB, 9, communicating hole, 20, connecting hole, 101, front, 102, bottom front,
103, back bottom, 104, the back side, 201, left trough rim, 202, right trough rim；
10, motherboard, the 11, first daughter board, the 12, second daughter board, 13, third daughter board, 14, black key detection device, 15, white key inspection
Survey device, 16, main MCU, 17, USB female seat, 18, wired or wireless transmission module, 19, single connector, 20, FPC connector,
21, double connector, 22, LED drive chip, 23, LED light, 24, sub- MCU, 11X7, seven the first daughter boards, 13X3, three
Three daughter boards, 141, infrared photo-emitter, 142, infrared electro receiver, 151, reflective infrared photoelectric detection sensor.
Specific embodiment
In conjunction with Fig. 1-Fig. 7, first specific embodiment of the utility model is described in detail, but not to the power of the utility model
Benefit requires to do any restriction.
As shown in Fig. 1-Fig. 7, a kind of piano pressure spline, including pressure spline ontology 1,1 center of pressure spline ontology opens up
There is through slot 2,1 front 101 of pressure spline ontology offers 36 piano black key detection holes 3, each piano black key detection hole 3
Corresponding 1 piano black key, 1 bottom front 102 of pressure spline ontology offer piano white key detection slot 4；
Glass wedged groove 5, top layer PCB card slot 6 and bottom PCB card slot 7, the top layer are additionally provided in the piano pressure spline
For placing PCB circuit board, the PCB circuit board placed in the bottom PCB card slot 7 is used for for PCB card slot 6 and bottom PCB card slot 7
Fingerboard movement is detected, is provided with LED light, the LED light and key in the PCB circuit board placed in the top layer PCB card slot 6
Disk corresponds, and the PCB circuit board placed in the top layer PCB card slot 6 passes through the LED being disposed thereon and shows that fingerboard is
No to press, the glass wedged groove 5 is arranged in parallel with the top layer PCB card slot 6, and is arranged above the top layer PCB card slot 6,
The glass wedged groove 5 is used to place transparent glass and shows the light of LED.
More specifically, left trough rim 201 and right trough rim 202 that the bottom PCB card slot 7 is horizontally set on through slot 2 are relatively
On the position answered.
More specifically, the left and right two of the glass wedged groove 5 and the dip-parallel setting through slot 2 of the top layer PCB card slot 6
On trough rim, left trough rim 201 is lower than right trough rim 202, and inclination angle is 15-40 degree, this example is 18 °.
More specifically, the spacing of the glass wedged groove 5 and the top layer PCB card slot 6, within 3mm, this example is
2.5mm。
More specifically, 1 back bottom 103 of pressure spline ontology is inclined-plane, the oblique angle on the back bottom inclined-plane is 45-
75 degree, this example is 60 °.
More specifically, further including the hole USB 8, the hole USB 8 is set to the lower left in pressure 1 front 101 of spline ontology, mobile
Power supply or direct current 5V electricity are powered by the hole USB 8 to PCB circuit board or to the power supply power supply in PCB circuit board.
More specifically, further including communicating hole 9, the communicating hole 9 is set to the lower left at pressure 1 back side 104 of spline ontology, institute
Communicating hole 9 is stated for avoiding wireless signal from being blocked or shielded by aluminum profile metal material, pressure spline ontology 1 often uses aluminum profile metal
Material is made.
More specifically, further including connecting hole 20, the connecting hole 20, the connecting hole 20 is set to pressure spline ontology 1 and pushes up
The left and right sides in portion and bottom, the connecting hole 20 press spline to piano for being fixedly connected with piano.
In conclusion the utility model only needs to replace pressure spline, it will be able to make traditional piano that can retain traditional piano
The beautiful timbre that machinery occurs, and can communicate with each other with electronic equipment, the traditional piano of realization is merged with electronic equipment.
It is understood that being merely to illustrate the utility model above with respect to the specific descriptions of the utility model and not being
It is limited to technical solution described in the utility model embodiment, those skilled in the art should understand that, it is not departing from
It in the case where spirit and scope defined by claim, can modify to the utility model or equivalent replacement, to reach
Identical technical effect, but be within the protection scope of the utility model.
Claims (8)
1. a kind of piano presses spline, including pressure spline ontology (1), it is characterised in that: pressure spline ontology (1) center offers
Through slot (2), the pressure spline ontology (1) positive (101) offer 36 piano black key detection holes (3), each piano black key
Detection hole (3) corresponds to 1 piano black key, and pressure spline ontology (1) bottom front (102) offers piano white key detection slot
(4)；
Glass wedged groove (5), top layer PCB card slot (6) and bottom PCB card slot are additionally provided on piano pressure spline ontology (1)
(7), the top layer PCB card slot (6) and bottom PCB card slot (7) are for placing PCB circuit board, in the bottom PCB card slot (7)
The PCB circuit board of placement is arranged in the PCB circuit board placed in the top layer PCB card slot (6) for detecting fingerboard movement
There is LED light, the LED light and keyboard correspond, and the PCB circuit board placed in the top layer PCB card slot (6) is existed by setting
LED thereon shows whether fingerboard is pressed, and the glass wedged groove (5) is arranged in parallel with the top layer PCB card slot (6), and
Above the top layer PCB card slot (6), the glass wedged groove (5) is used to place transparent glass and shows the light of LED for setting.
2. piano according to claim 1 presses spline, it is characterised in that: the bottom PCB card slot (7), which is horizontally set on, passes through
On the left trough rim (201) and the corresponding position of right trough rim (202) of through slot (2).
3. piano according to claim 1 presses spline, it is characterised in that: the glass wedged groove (5) and the top layer PCB card
On the trough rim of left and right two of dip-parallel setting through slot (2) of slot (6), left trough rim (201) is lower than right trough rim (202), inclination angle
For 15-40 degree.
4. piano according to claim 1 presses spline, it is characterised in that: the glass wedged groove (5) and the top layer PCB card
The spacing of slot (6) is within 3mm.
5. piano according to claim 1 presses spline, it is characterised in that: pressure spline ontology (1) back bottom (103)
For inclined-plane, the oblique angle on the back bottom inclined-plane is 45-75 degree.
6. piano according to claim 1 presses spline, it is characterised in that: further include the hole USB (8), the hole USB (8) sets
It is placed in the lower left of pressure spline ontology (1) positive (101), mobile power source or direct current 5V electricity and gives PCB electricity by the hole USB (8)
Road plate powers or to the power supply power supply in PCB circuit board.
7. piano according to claim 1 presses spline, it is characterised in that: it further include communicating hole (9), the communicating hole (9)
It is set to the lower left of pressure spline ontology (1) back side (104), the communicating hole (9) is for avoiding wireless signal from being shielded or hidden
Gear.
8. piano according to claim 1 presses spline, it is characterised in that: further include connecting hole (20), the connecting hole
(20), the connecting hole (20) is set to the left and right sides at the top and bottom of pressure spline ontology (1), and the connecting hole (20) is used for
It is fixedly connected in piano pressure spline to piano.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821430272.5U CN208861650U (en) | 2018-09-03 | 2018-09-03 | A kind of piano pressure spline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821430272.5U CN208861650U (en) | 2018-09-03 | 2018-09-03 | A kind of piano pressure spline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208861650U true CN208861650U (en) | 2019-05-14 |
Family
ID=66416630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821430272.5U Expired - Fee Related CN208861650U (en) | 2018-09-03 | 2018-09-03 | A kind of piano pressure spline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208861650U (en) |
-
2018
- 2018-09-03 CN CN201821430272.5U patent/CN208861650U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |