CN209118550U - A kind of piano practice hand-type correcting device - Google Patents
A kind of piano practice hand-type correcting device Download PDFInfo
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- CN209118550U CN209118550U CN201820973082.1U CN201820973082U CN209118550U CN 209118550 U CN209118550 U CN 209118550U CN 201820973082 U CN201820973082 U CN 201820973082U CN 209118550 U CN209118550 U CN 209118550U
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- ring
- baffle
- limit plate
- thumb
- finger ring
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- 210000003811 finger Anatomy 0.000 claims abstract description 74
- 210000003813 thumb Anatomy 0.000 claims abstract description 59
- 210000004932 little finger Anatomy 0.000 claims abstract description 50
- 229920001971 elastomer Polymers 0.000 claims abstract description 22
- 230000000712 assembly Effects 0.000 claims abstract description 19
- 238000000429 assembly Methods 0.000 claims abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000741 silica gel Substances 0.000 claims abstract description 16
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 16
- 229960001866 silicon dioxide Drugs 0.000 claims abstract description 16
- 229920001821 foam rubber Polymers 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 abstract 1
- 210000000707 wrist Anatomy 0.000 description 50
- 230000000694 effects Effects 0.000 description 12
- 229910045601 alloy Inorganic materials 0.000 description 7
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- 241000282376 Panthera tigris Species 0.000 description 6
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- 238000012545 processing Methods 0.000 description 5
- 241000905957 Channa melasoma Species 0.000 description 3
- 229910000990 Ni alloy Inorganic materials 0.000 description 3
- 229910001297 Zn alloy Inorganic materials 0.000 description 3
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- WJCRZORJJRCRAW-UHFFFAOYSA-N cadmium gold Chemical compound [Cd].[Au] WJCRZORJJRCRAW-UHFFFAOYSA-N 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 229910000925 Cd alloy Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005057 finger movement Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Abstract
The utility model discloses a kind of piano practice hand-type correcting devices, including snap ring, cuff assemblies and limit plate, the side of snap ring is equipped with fixture block, the end side of snap ring is equipped with baffle, the side of baffle is provided with electric telescopic rod, rubber block is installed on the inside of baffle, silicagel pad is enclosed on the outside of rubber block, limit plate is installed on the side of baffle by shaft, cuff assemblies are installed on the side of limit plate, spring is installed on the inside of limit plate, the end side of spring is provided with foam-rubber cushion, cuff assemblies are by little finger ring, middle finger ring and thumb ring composition, the side of middle finger ring is equipped with connection frame, connection frame is connected by screw rod with thumb ring, the side of thumb ring is equipped with distance measuring sensor, distance measuring sensor is connected with main controller.The utility model effectively solves the problems, such as hand-type of the student when practicing on the piano, and auxiliary student forms preferable basic hand-type use habit, to better grasp playing for piano.
Description
Technical field
The invention belongs to the ancillary technique fields of piano practice, more specifically, more particularly, to a kind of piano practice hand
Type correcting device.
Background technique
Piano is one of western classical music keyboard instrument, range scope from A0(27.5Hz) to C8(4186Hz),
Almost enumerate the whole musical sounds in Musical System.Playing for piano is completed by finger.According to the physiology and appearance of manpower and
The keyboard structure form of musical instrument production necessarily leads to the situation for adapting to play the finger touching of needs out.Here it is us usually
So-called " hand-type ".There is no the posture of certain changeless hand hand-type one by one in piano performance objectively.Every-first new pleasure
Qu Douhui generates new task, and the posture of playing of opponent is influenced and required.When different pianists plays same-first melody
The posture of hand also can be various, it can be said that do not have-kind of absolute correct hand-type mode, also without one kind one at
Constant fixation hand-type mode is construed as correctly to any performance hand-type that musical needs is adapted to.It should say.
This is the concept with fundamental significance about correct hand-type.
However, being in the foundation phase of study piano performance, we emphasize to train very much again for the person that begins to learn piano
Support a kind of correctly basic hand-type.This is because for adapt to fingerboard arrangement architecture and playing skill, need people hand and
Finger, which has-kind is conducive to, plays movement and the correct status of the utilization and transmission of playing power.This state will be best suitable for human body
Natural growing way and finger movement physiological function.Then, the state of playing of such a hand is called basic hand-type by we.
For basic hand-type, teacher generally can have detailed explanation during giving lessons, and still, student is alone after class
When practice, lack a kind of equipment of energy correcting hand-type, beginner often forms the hand of mistake during practicing after class
Type indisposition is unfavorable for the foundation of the basic hand-type of beginner, influences subsequent study and raising process.
In order to make beginner grasp correct playing skill in the practice of piano, the practice mode to correct a mistake is existing
The auxiliary device of piano practice has following several in technology:
Chinese patent application 201521139693.9 discloses a kind of piano practice auxiliary device, as shown in Figure 1 comprising
Shell, interior of shell are provided with phonographic recorder, central processing unit, human-computer interaction module and memory；Phonographic recorder, with central processing unit
Connection plays recording when for practicing piano practice person；Memory is connect with central processing unit, for storing digital electricity
Sub- music score；Central processing unit, the digital and electronic music score for will store in the recording of phonographic recorder and memory compare, and will compare
As a result it is sent to human-computer interaction module；Human-computer interaction module is connect with central processing unit, for showing comparison result.The one kind
Piano practice auxiliary device can carry out auxiliary direction to piano practice person.But the piano practice auxiliary device is mainly pair
The piano playing sound of practitioner carries out practice auxiliary, cannot play gesture to the mistake of practitioner and correct.
Chinese patent application 201610569175.3 discloses a kind of piano practice finger rectification device, as shown in Fig. 2, it is wrapped
Include finger ring set, pressing plate cutting ferrule and finger pressing plate；Finger ring set top is provided with pressing plate cutting ferrule, and pressure board set is provided with card slot,
Finger pressing plate is plugged in the card slot of pressing plate cutting ferrule.The piano practice finger rectification device finger ring position size can be according to finger thickness
Adjust, pressing plate can flexibly dismounting and change so as to same finger match.But the piano practice finger rectification device cannot be normal to beginner
Existing folding refers to, thumb from key, stick up that wrist, thumb gripping finger, little finger of toe lie low, metacarpal joint collapses and palm is tilted to little finger etc.
Mistake hand-type is corrected, and is difficult that piano beginner is made to form the good practice played habit, be unfavorable for piano.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, provide a kind of piano practice hand-type auxiliary
Apparatus for correcting can help student to adapt to finger tip and stand, avoid the occurrence of that folding refers to；Contact of the thumb with key is detected,
It prevents thumb from key, enhances the relaxation and degree of flexibility of wrist, the generation of wrist phenomenon is stuck up in control；Tiger's jaw distance is limited, is slowed down
Thumb gripping finger enhances small articulations digitorum manus load-bearing capacity, little finger of toe is avoided to lie low, and increases the standing dynamics of thumb, prevents metacarpal joint from collapsing；
Palm is controlled simultaneously to tilt gently towards thumb direction, provides little finger of toe enough activity spaces, and palm is avoided to tilt to little finger, with
Solve the technical issues of mentioning in above-mentioned background.
To achieve the goals above, the invention provides the following technical scheme:
A kind of piano practice hand-type correcting device, including snap ring, cuff assemblies and limit plate, the side of the snap ring
Fixture block is installed, the end side of the snap ring is equipped with baffle, and the side of the baffle is provided with electric telescopic rod, the baffle
Inside is equipped with rubber block, and silicagel pad is enclosed on the outside of the rubber block, and the limit plate is installed on baffle by shaft
Side, the cuff assemblies are installed on the side of limit plate, and spring, the end side of the spring are equipped on the inside of the limit plate
It is provided with foam-rubber cushion, the cuff assemblies are made of little finger ring, middle finger ring and thumb ring, the lower part peace of the little finger ring
Equipped with arc plate, the side of the middle finger ring is equipped with connection frame, and the connection frame is connected by screw rod with thumb ring, described big
The side of thumb rings is equipped with distance measuring sensor, and the distance measuring sensor is connected with main controller, and the main controller is connected with pressure
Sensor, the pressure sensor are respectively arranged in the end side of little finger ring, middle finger ring and thumb ring.
Preferably, the main controller is connected with alarm lamp, and the alarm lamp is installed on the top of limit plate.
Preferably, the electric telescopic rod is electrical connected with main controller, and the electric telescopic rod is symmetrical relative to baffle
At least two groups are provided with, the main controller is installed on the top of limit plate.
Preferably, the spring is disposed in proximity to the side of little finger ring, and is socketed with hollow pipe on the outside of the spring.
Preferably, the end side of the hollow pipe is installed on the inside of limit plate, and the hollow pipe is wrapped up by foam-rubber cushion.
Preferably, the little finger ring, middle finger ring and thumb ring are all made of memorial alloy and are made, and the middle finger ring is set
It is equipped with three groups.
Preferably, the memorial alloy be marmem, the marmem be titanium-nickel alloy,
Gold-one of cadmium alloy or copper-zinc alloy is a variety of.
Preferably, in order to increase the comfort level that the baffle is contacted with wrist so that wrist according to user's own situation into
Row is adjusted, and while reaching fixed to wrist, enhances the relaxation and degree of flexibility of wrist, the generation of wrist phenomenon, institute are stuck up in control
The thickness H1 for stating rubber block is 0.35-1.45mm, and elastic modulus E 1 is 1900-2050MPa, and shore hardness Y1 is 50-60；It is described
Silicagel pad elastic modulus E 2 is 1100-1250MPa, and hardness Y2 is 30-40.Further, the elastic modulus E 1 and hardness
Y2 meets E1/Y2 and is less than or equal to 62.5 more than or equal to 48.5.
Preferably, the elastic modulus E 1 of the rubber block, shore hardness Y1 and silicagel pad elastic modulus E 2, hardness Y2 are full
It is enough lower relationship:
E1/E2=λ·Y1/Y2；
Wherein, λ is proportionality coefficient, value range 0.5-1.4.
Based on above-mentioned piano practice hand-type correcting device, the present invention also provides a kind of piano practice hand-type auxiliary to rectify
Correction method includes the following steps:
S1, wrist fixation with loosen: arm is placed in the inside of snap ring, then snap ring is fixed in fixture block, gear
Plate is also secured at the side of wrist, by the laminating degree of electric telescopic rod controllable register and wrist side, rubber block and silica gel
Pad increases the comfort level that baffle is contacted with wrist and reaches and fix to wrist so that wrist is adjusted according to user's own situation
While, enhance the relaxation and degree of flexibility of wrist, the generation of wrist phenomenon is stuck up in control；
S2, finger tip are stood and detection: little finger being placed on to the inside of little finger ring, thumb is placed on thumb ring
Inside, nameless, middle finger and index finger are both placed in the inside of middle finger ring, and pressure sensor detects pressure provided by the five fingers,
Under the restriction of little finger ring, middle finger ring and thumb ring, so that the five fingers good realization finger tip of energy is stood, in the effect of arc plate
Under, little finger bending enhances small articulations digitorum manus load-bearing capacity, avoids little finger of toe from lying low, increases the standing dynamics of little finger, prevents the palm from closing
Section collapses, and distance measuring sensor detects distance of the thumb apart from key, pressure sensor and distance measuring sensor for corresponding testing number
According to main controller is passed to, main controller opens and closes alarm lamp according to data, and simple and convenient help student adapts to finger tip and stands, avoids rolling over
The occurrence of finger, detects contact of the thumb with key, prevents thumb from key；
The fixation of S3, palm: palm is placed between limit plate, under the action of spring and foam-rubber cushion, is made naturally
Palm is tilted gently towards thumb direction, provides little finger of toe enough activity spaces, is avoided palm from tilting to little finger, is influenced small thumb
What is referred to plays；
The adjusting of S4, tiger's jaw distance: by the rotation of screw rod, drive screw rod far from connection frame, so that middle finger ring and big thumb
The distance of finger ring is adjusted, and tiger's jaw distance is effectively adjusted, and slows down thumb gripping finger, so that each finger can preferable bullet
It plays.
Compared with prior art, technical effect and advantage of the invention:
1, piano practice hand-type correcting device of the invention helps student to adapt to finger tip and stands, folding is avoided to refer to situation
Generation, detect contact of the thumb with key, prevent thumb from key, enhance the relaxation and degree of flexibility of wrist, wrist is stuck up in control
The generation of phenomenon.
2, piano practice hand-type correcting device of the invention limits tiger's jaw distance, slows down thumb gripping finger, enhances little finger of toe
Joint load-bearing capacity, avoids little finger of toe from lying low, and increases the standing dynamics of thumb, prevents metacarpal joint from collapsing.
3, piano practice hand-type correcting device of the invention, control palm are tilted gently towards thumb direction, are provided small
Refer to enough activity spaces, palm is avoided to tilt to little finger, efficiently solve the hand-type mistake that student easily makes at initial stage, auxiliary is learned
Member forms preferable basic hand-type use habit.
4, piano practice hand-type correcting device of the invention, through setting rubber block and silicagel pad, described in increasing
The comfort level that baffle is contacted with wrist, so that wrist is adjusted according to user's own situation, while reaching fixed to wrist,
Enhance the relaxation and degree of flexibility of wrist, the generation of wrist phenomenon is stuck up in control.
5, piano practice hand-type correcting device of the invention, by thickness, hardness that rubber block and silicagel pad is arranged
With the range and relationship of the parameters such as elasticity modulus, further to increase the comfort level that baffle is contacted with wrist, so that wrist root
It is adjusted according to user's own situation, while reaching fixed to wrist, enhances the relaxation and degree of flexibility of wrist, hand is stuck up in control
The generation of wrist phenomenon.
Detailed description of the invention
Fig. 1 is a kind of piano practice auxiliary device schematic diagram in the prior art；
Fig. 2 is a kind of piano practice finger rectification device schematic diagram in the prior art；
Fig. 3 is piano practice hand-type correcting apparatus structure schematic diagram of the invention of the invention；
Fig. 4 is piano practice hand-type correcting device baffle arrangement schematic diagram of the invention of the invention；
Fig. 5 is piano practice hand-type correcting device limit plate structural schematic diagram of the invention of the invention；
Fig. 6 is piano practice hand-type correcting device circuit module diagram of the invention of the invention；
Fig. 7 is piano practice hand-type correcting method flow diagram of the invention of the invention.
In Fig. 3-6: 1, snap ring；2, cuff assemblies；3, limit plate；4, fixture block；5, baffle；6, electric telescopic rod；7, rubber
Block；8, silicagel pad；9, shaft；10, spring；11, foam-rubber cushion；12, little finger ring；13, middle finger ring；14, thumb ring；15, arc
Plate；16, connection frame；17, screw rod；18, distance measuring sensor；19, main controller；20, pressure sensor；21, alarm lamp；22, hollow
Pipe.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
As seen in figures 3-6, a kind of piano practice hand-type correcting device comprising snap ring 1, cuff assemblies 2 and limit
Plate 3, the side of the snap ring 1 are equipped with fixture block 4, and the end side of the snap ring 1 is equipped with baffle 5, and the side of the baffle 5 is set up
There is electric telescopic rod 6, the inside of the baffle 5 is equipped with rubber block 7, and the outside of the rubber block 7 is enclosed with silicagel pad 8, institute
The side that limit plate 3 is installed on baffle 5 by shaft 9 is stated, the cuff assemblies 2 are installed on the side of limit plate 3, the limit
The inside of plate 3 is equipped with spring 10, and the end side of the spring 10 is provided with foam-rubber cushion 11, and the cuff assemblies 2 are by little finger ring
12, middle finger ring 13 and thumb ring 14 form, and the lower part of the little finger ring 12 is equipped with arc plate 15, the side of the middle finger ring 13
Portion is equipped with connection frame 16, and the connection frame 16 is connected by screw rod 17 with thumb ring 14, the side of the thumb ring 14
Distance measuring sensor 18 is installed, the distance measuring sensor 18 is connected with main controller 19, and the main controller 19 is connected with pressure sensing
Device 20, the pressure sensor 20 are respectively arranged in the end side of little finger ring 12, middle finger ring 13 and thumb ring 14, the master control
Device 19 is connected with alarm lamp 21, and the alarm lamp 21 is installed on the top of limit plate 3.
The electric telescopic rod 6 is connected with main controller 19, and the electric telescopic rod 6 is symmetrically arranged with relative to baffle 5
At least two groups, the main controller 19 are installed on the top of limit plate 3, help to guarantee arm to the control of electric telescopic rod 6
Comfortably.
The spring 10 is disposed in proximity to the side of little finger ring 12, and the outside of the spring 10 is socketed with hollow pipe
22, the end side of the hollow pipe 22 is installed on the inside of limit plate 3, and the hollow pipe 22 is wrapped up by foam-rubber cushion 11, can be preferably
Prevent palm be put into limit plate 3 inside generate spring 10 deviate, reach preferable adjustment effect.
The little finger ring 12, middle finger ring 13 and thumb ring 13 are all made of memorial alloy and are made, and the middle finger ring 13
Three groups are provided with, the placement of the five fingers is facilitated, reaches preferable rectification effect.
As shown in fig. 7, the invention also discloses a kind of pianos to practice based on above-mentioned piano practice hand-type correcting device
Hand-type correcting method is practised, is included the following steps:
S1, wrist fixation with loosen: arm is placed in the inside of snap ring 1, then snap ring 1 is fixed in fixture block 4,
Baffle 5 is also secured at the side of wrist, passes through the laminating degree of 6 controllable register 5 and wrist side of electric telescopic rod, rubber block 7
Increase the comfort level that contacts with wrist of baffle 5 with silicagel pad 8, so that wrist is adjusted according to user's own situation, reaches pair
While wrist is fixed, enhance the relaxation and degree of flexibility of wrist, the generation of wrist phenomenon is stuck up in control；
S2, finger tip are stood and detection: little finger being placed on to the inside of little finger ring 12, thumb is placed on thumb ring
14 inside, nameless, middle finger and index finger are both placed in the inside of middle finger ring 13, and pressure sensor 20 detects provided by the five fingers
Pressure, under the restriction of little finger ring 12, middle finger ring 13 and thumb ring 14, so that the five fingers can good realization finger tip station
Vertical, under the action of arc plate 15, little finger bending enhances small articulations digitorum manus load-bearing capacity, avoids little finger of toe from lying low, increases little finger
Standing dynamics, prevents metacarpal joint from collapsing, and distance measuring sensor 18 detects distance of the thumb apart from key, pressure sensor 20 and survey
Corresponding detection data is passed into main controller 19 away from sensor 18, main controller 19 opens and closes alarm lamp 21 according to data, simple and convenient
Help student adapt to finger tip and stand, avoid the occurrence of that folding refers to, detect contact of the thumb with key, prevent thumb from key；
The fixation of S3, palm: palm is placed between limit plate 3, natural under the action of spring 10 and foam-rubber cushion 11
So that palm is tilted gently towards thumb direction, provide little finger of toe enough activity spaces, palm is avoided to tilt to little finger, influences
Little finger is played；
The adjusting of S4, tiger's jaw distance: by the rotation of screw rod 17, drive screw rod 17 far from connection frame 16, so that middle finger ring
13 are adjusted at a distance from thumb ring 14, and tiger's jaw distance is effectively adjusted, and slow down thumb gripping finger, so that each finger
It can preferably play.
Embodiment 2
A kind of piano practice hand-type correcting device comprising snap ring 1, cuff assemblies 2 and limit plate 3, the snap ring 1
Side fixture block 4 is installed, the end side of the snap ring 1 is equipped with baffle 5, and the side of the baffle 5 is provided with electric telescopic rod
6, the inside of the baffle 5 is equipped with rubber block 7, and the outside of the rubber block 7 is enclosed with silicagel pad 8, and the limit plate 3 passes through
Shaft 9 is installed on the side of baffle 5, and the cuff assemblies 2 are installed on the side of limit plate 3, the inside installation of the limit plate 3
There is spring 10, the end side of the spring 10 is provided with foam-rubber cushion 11, and the cuff assemblies 2 are by little finger ring 12,13 and of middle finger ring
Thumb ring 14 forms, and the lower part of the little finger ring 12 is equipped with arc plate 15, and the side of the middle finger ring 13 is equipped with connection
Frame 16, the connection frame 16 are connected by screw rod 17 with thumb ring 14, and the side of the thumb ring 14 is equipped with ranging biography
Sensor 18, the distance measuring sensor 18 are electrically connected with main controller 19, and the main controller 19 is electrically connected with pressure sensor 20,
The pressure sensor 20 is respectively arranged in the end side of little finger ring 12, middle finger ring 13 and thumb ring 14, the main controller 19
It is electrically connected with alarm lamp 21, the alarm lamp 21 is installed on the top of limit plate 3.
The electric telescopic rod 6 is electrical connected with main controller 19, and the electric telescopic rod 6 is symmetrically set relative to baffle 5
At least two groups are equipped with, the main controller 19 is installed on the top of limit plate 3, facilitates the control to electric telescopic rod 6, guarantees hand
Arm it is comfortable.
The spring 10 is disposed in proximity to the side of little finger ring 12, and the outside of the spring 10 is socketed with hollow pipe
22, the end side of the hollow pipe 22 is installed on the inside of limit plate 3, and the hollow pipe 22 is wrapped up by foam-rubber cushion 11, can be preferably
Prevent palm be put into limit plate 3 inside generate spring 10 deviate, reach preferable adjustment effect.
The little finger ring 12, middle finger ring 13 and thumb ring 13 are all made of memorial alloy and are made, and the middle finger ring 13
Three groups are provided with, the placement of the five fingers is facilitated, reaches preferable rectification effect.
The memorial alloy is marmem, and the marmem is titanium-nickel alloy, gold-cadmium conjunction
One of gold or copper-zinc alloy are a variety of.
In order to increase the comfort level that the baffle is contacted with wrist, so that wrist is adjusted according to user's own situation,
While reaching fixed to wrist, enhance the relaxation and degree of flexibility of wrist, the generation of wrist phenomenon, the rubber block are stuck up in control
Thickness H1 be 0.35-1.45mm, elastic modulus E 1 be 1900-2050MPa, shore hardness Y1 be 50-60；The silicagel pad bullet
Property modulus E2 be 1100-1250MPa, hardness Y2 be 30-40.
Further, the elastic modulus E 1 and hardness Y2 meet E1/Y2 and are less than or equal to 62.5 more than or equal to 48.5.When
E1/Y2 less than 48.5, or be greater than 62.5 when, be easy to cause contact of the baffle with wrist unsmooth, wrist cannot according to user from
Body situation is adjusted, and can not be fixed well to wrist, lead to the generation for sticking up wrist phenomenon.
Embodiment 3
A kind of piano practice hand-type correcting device comprising snap ring 1, cuff assemblies 2 and limit plate 3, the snap ring 1
Side fixture block 4 is installed, the end side of the snap ring 1 is equipped with baffle 5, and the side of the baffle 5 is provided with electric telescopic rod
6, the inside of the baffle 5 is equipped with rubber block 7, and the outside of the rubber block 7 is enclosed with silicagel pad 8, and the limit plate 3 passes through
Shaft 9 is installed on the side of baffle 5, and the cuff assemblies 2 are installed on the side of limit plate 3, the inside installation of the limit plate 3
There is spring 10, the end side of the spring 10 is provided with foam-rubber cushion 11, and the cuff assemblies 2 are by little finger ring 12,13 and of middle finger ring
Thumb ring 14 forms, and the lower part of the little finger ring 12 is equipped with arc plate 15, and the side of the middle finger ring 13 is equipped with connection
Frame 16, the connection frame 16 are connected by screw rod 17 with thumb ring 14, and the side of the thumb ring 14 is equipped with ranging biography
Sensor 18, the distance measuring sensor 18 are electrically connected with main controller 19, and the main controller 19 is electrically connected with pressure sensor 20,
The pressure sensor 20 is respectively arranged in the end side of little finger ring 12, middle finger ring 13 and thumb ring 14, the main controller 19
It is electrically connected with alarm lamp 21, the alarm lamp 21 is installed on the top of limit plate 3.
The electric telescopic rod 6 is electrical connected with main controller 19, and the electric telescopic rod 6 is symmetrically set relative to baffle 5
At least two groups are equipped with, the main controller 19 is installed on the top of limit plate 3, facilitates the control to electric telescopic rod 6, guarantees hand
Arm it is comfortable.
The spring 10 is disposed in proximity to the side of little finger ring 12, and the outside of the spring 10 is socketed with hollow pipe
22, the end side of the hollow pipe 22 is installed on the inside of limit plate 3, and the hollow pipe 22 is wrapped up by foam-rubber cushion 11, can be preferably
Prevent palm be put into limit plate 3 inside generate spring 10 deviate, reach preferable adjustment effect.
The little finger ring 12, middle finger ring 13 and thumb ring 13 are all made of memorial alloy and are made, and the middle finger ring 13
Three groups are provided with, the placement of the five fingers is facilitated, reaches preferable rectification effect.
The memorial alloy is marmem, and the marmem is titanium-nickel alloy, gold-cadmium conjunction
One of gold or copper-zinc alloy are a variety of.
Preferably, in order to increase the comfort level that the baffle is contacted with wrist so that wrist according to user's own situation into
Row is adjusted, and while reaching fixed to wrist, enhances the relaxation and degree of flexibility of wrist, the generation of wrist phenomenon, institute are stuck up in control
The thickness H1 for stating rubber block is 0.35-1.45mm, and elastic modulus E 1 is 1900-2050MPa, and shore hardness Y1 is 50-60；It is described
Silicagel pad elastic modulus E 2 is 1100-1250MPa, and hardness Y2 is 30-40.
Elastic modulus E 1, shore hardness Y1 and silicagel pad elastic modulus E 2, the hardness Y2 of the rubber block meet with ShiShimonoseki
System:
E1/E2=λ·Y1/Y2；
Wherein, λ is proportionality coefficient, value range 0.5-1.4.
Finally, it should be noted that being not intended to restrict the invention the foregoing is merely preferred embodiment, although reference
Invention is explained in detail for previous embodiment, for those skilled in the art, still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features, of the invention
Within spirit and principle, any modification, equivalent replacement, improvement and so on are all included in the scope of protection of the present invention.
Claims (2)
1. a kind of piano practice hand-type correcting device, it is characterised in that: including snap ring (1), cuff assemblies (2) and limit plate
(3)；The side of the snap ring (1) is equipped with fixture block (4), and the end side of the snap ring (1) is equipped with baffle (5), the baffle (5)
Side be provided with electric telescopic rod (6), be equipped with rubber block (7) on the inside of the baffle (5), the rubber block (7) it is outer
Side is enclosed with silicagel pad (8), and the limit plate (3) is installed on the side of baffle (5), the cuff assemblies (2) by shaft (9)
It is installed on the side of limit plate (3), is equipped with spring (10) on the inside of the limit plate (3), the end side of the spring (10) is set
It is equipped with foam-rubber cushion (11), the cuff assemblies (2) are made of little finger ring (12), middle finger ring (13) and thumb ring (14), institute
The lower part for stating little finger ring (12) is equipped with arc plate (15), and the side of the middle finger ring (13) is equipped with connection frame (16), described
Connection frame (16) is connected by screw rod (17) with thumb ring (14), and the side of the thumb ring (14) is equipped with ranging sensing
Device (18), the distance measuring sensor (18) are connected with main controller (19), and the main controller (19) is connected with pressure sensor (20),
The pressure sensor (20) is respectively arranged in the end side of little finger ring (12), middle finger ring (13) and thumb ring (14).
2. a kind of piano practice hand-type correcting device according to claim 1, it is characterised in that: the electric expansion
Bar (6) is connected with main controller (19), and the electric telescopic rod (6) is symmetrically arranged at least two groups relative to baffle (5), described
Main controller (19) is installed on the top of limit plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820973082.1U CN209118550U (en) | 2018-06-25 | 2018-06-25 | A kind of piano practice hand-type correcting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820973082.1U CN209118550U (en) | 2018-06-25 | 2018-06-25 | A kind of piano practice hand-type correcting device |
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| Publication Number | Publication Date |
|---|---|
| CN209118550U true CN209118550U (en) | 2019-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820973082.1U Expired - Fee Related CN209118550U (en) | 2018-06-25 | 2018-06-25 | A kind of piano practice hand-type correcting device |
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| Country | Link |
|---|---|
| CN (1) | CN209118550U (en) |
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2018
- 2018-06-25 CN CN201820973082.1U patent/CN209118550U/en not_active Expired - Fee Related
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