CN113313998B

CN113313998B - Wave spectrum auxiliary exercise device based on digital music teaching

Info

Publication number: CN113313998B
Application number: CN202110684224.9A
Authority: CN
Inventors: 董晓; 刘杰
Original assignee: Rizhao Polytechnic
Current assignee: Rizhao Polytechnic
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-06-03
Anticipated expiration: 2041-06-21
Also published as: CN113313998A

Abstract

The invention provides a spectrum auxiliary exercise device for teaching based on digital music, relates to the technical field of music teaching, and solves the problem that when students practice through piano white keys and black keys according to scales corresponding to spectrums taught by teachers, the students cannot judge whether the scales are pressed wrongly or not, so that the practice effect cannot be achieved. The utility model provides a spectrum auxiliary exercise device based on usefulness is given lessons to digital music, includes the auxiliary exercise main part, the whole rectangle block structure that is of auxiliary exercise main part. When a student presses the white-imitated key and the black-imitated key once according to the scale corresponding to the spectrum, the exercise auxiliary display mechanism at the relative position can rotate the feeding surface, so that after one spectrum stops, a teacher can observe the display marks displayed on the exercise auxiliary display mechanism at the relative position of the white-imitated key and the black-imitated key before each student, and then whether the student has the corresponding relationship between the spectrum display and the scale is judged quickly, and the follow-up targeted teaching is facilitated.

Description

Wave spectrum auxiliary exercise device based on digital music teaching

Technical Field

The invention belongs to the technical field of music teaching, and particularly relates to a spectrum auxiliary exercise device for teaching based on digital music.

Background

The traditional music teaching is basically a staff electric teaching board, the integrated and demonstrated music theory knowledge has few types, poor visibility, weak linkage between music theories and inconvenient grasp of students, a control system used by the traditional music teaching board is old and cannot record and play, the operation is not very convenient, the teaching content is not rich enough, the form is not flexible enough, and the use requirement of people cannot be well met, along with the development of society, more and more teachers begin to adopt digital music teaching, the digitization is to convert a plurality of complex and changeable information (such as pictures, music, images, waveband information, programs and the like) into measurable digital data, a digital model is established in a computer by using the digital data, the digital model is converted into a series of binary codes, the binary codes are introduced into the computer for unified processing, storage and management, and the digital music teaching enables the students to contact more and more, the learning difficulty is also getting bigger and bigger, and teachers mostly adopt the spectrum display device to assist in teaching in the teaching process.

For example, application No.: CN201710668864.4 the embodiment of the invention discloses an intelligent music teaching system, relates to the technical field of musical instruments, and aims to accurately judge the accuracy of playing keys. Intelligent music teaching system includes: the intelligent keyboard musical instrument, the music teaching program running component and the display screen; the intelligent keyboard instrument comprises a control circuit, keys connected with the control circuit and LEDs connected with the control circuit, wherein the LEDs are arranged corresponding to the keys.

Based on the above patent search, and in combination with the equipment discovery in the prior art, the current spectrum-aided music teaching device has the following defects:

when the music teaching is practiced, the teacher teaches the corresponding scale of the student according to the display of the wave spectrum, and after a period of teaching, the student needs the corresponding scale of the wave spectrum taught by the teacher to practice through piano white keys and black keys, but the student can not judge whether the scale of the student presses the mistake, and the student can not judge whether the scale of the student presses the mistake, so that the effect of the application can not be realized, and the teacher can not judge whether the practice of the music teaching is realized by pressing the mistake, so that the follow-up pertinence can not be taught.

Disclosure of Invention

In order to solve the technical problems, the invention provides a spectrum auxiliary exercise device for teaching based on digital music, which aims to solve the problems that when a student exercises through white keys and black keys of a piano according to scales corresponding to spectrums taught by a teacher, the student cannot judge whether the student presses the scales wrongly, so that the exercise cannot be applied, and the teacher cannot judge whether the student presses the scales wrongly, so that the teacher cannot perform the subsequent targeted teaching.

The invention relates to a spectrum auxiliary exercise device for teaching based on digital music, which is realized by the following specific technical means:

a spectrum auxiliary exercise device for teaching based on digital music comprises an auxiliary exercise main body, wherein the whole auxiliary exercise main body is of a rectangular block structure and is fixedly arranged on the top end surface of a bearing frame; and the spectrum display device is fixedly arranged on the top end surface of the bearing frame and is in contact with the auxiliary exercise main body.

Further, for the spacing spout slidable mounting that imitates under the black key has imitative black key cooperation mechanism, imitative black key cooperation mechanism including: the limiting sliding block B is integrally in an isosceles trapezoid block structure, a tangent plane B is arranged at the front end of the limiting sliding block B and is in an inclined plane structure, and the limiting sliding block B is connected in a limiting sliding groove in a sliding mode; the top end faces of the driving teeth B and the limiting sliding blocks B are provided with two driving teeth B, and the driving teeth B adopt a half-gear structure; and the reset spring B is fixedly arranged on the right end face of the limiting sliding block B, and the other end of the reset spring B is fixedly connected with the rear side face of the inner end of the limiting sliding chute.

Further, when the reset piece A and the reset piece B are in a common extension state, the driven gear is not in contact with the driving tooth A and the driving tooth B, when the reset piece A and the reset piece B are in a compression state, the driven gear is meshed with the driving tooth A and the driving tooth B, the pressing column A presses the tangent plane A, the driving tooth A drives the driven gear to rotate to feed one side, the pressing column B presses the tangent plane B, and the driving tooth B also drives the driven gear to rotate to feed one side.

Further, the whole rectangle block structure that adopts of imitative white key, imitative white key including: each white key imitation is provided with a circular groove A, the circular grooves A penetrate through the top end face and the bottom end face of the white key imitation, and the axis part of each circular groove A is provided with a rotating shaft A; the pressing column A is integrally of a cylindrical structure, and the bottom end of the pressing column A is of a hemispherical structure; a pressing column A is arranged at the front side part of each white key imitating bottom end surface adjacent to the circular groove A; the reset piece A is a spring, the position of the adjacent front side of the bottom face of each white key imitation is provided with the reset piece A, and the reset piece A is fixedly connected with the bottom face of the inner end of the pressing groove.

Further, the whole rectangle block structure that adopts of imitative black key, imitative black key including: each black-imitating key is provided with a circular groove B, the circular grooves B penetrate through the top end surface and the bottom end surface of the black-imitating key, and the axis part of each circular groove B is provided with a rotating shaft B; the pressing column B is integrally of a cylindrical structure, and the bottom end of the pressing column B is of a hemispherical structure; a pressing column B is arranged at the front side part of each black key imitating bottom end surface adjacent to the circular groove B; the reset piece B is a spring, the position of the adjacent front side of the bottom face of each black-like key is provided with the reset piece B, and the reset piece B is fixedly connected with the bottom face of the inner end of the pressing groove.

Further, the auxiliary exercise body comprises: the pressing groove is of a rectangular groove structure and is formed in the top end face of the auxiliary exercise main body; the rotating shaft C is fixedly arranged between the left side surface and the right side surface of the inner end of the pressing groove and is positioned at the rear side part; a row of white-like keys and black-like keys which are consistent with the arrangement of the piano keys are arranged in the pressing groove, and the white-like keys and the black-like keys are rotatably connected with the rotating shaft C.

Further, the auxiliary exercise body comprises: the longitudinal section of the limiting sliding chute is of an isosceles trapezoid structure; the bottom surface of the inner end of the pressing groove is provided with a limit sliding groove relative to the white key and the black key.

Further, still including practicing supplementary display mechanism, all rotate in circular recess A and the circular recess B and install a set of exercise supplementary display mechanism, exercise supplementary display mechanism including: the display block main body is of a decagon block structure; the rubber sleeve is embedded in the center of the right end face of the display block main body in a penetrating manner; driven gear, display element main part left end face fixed mounting have driven gear, and driven gear and the coaxial setting of display element main part left end face center.

Further, the exercise auxiliary display mechanism comprises: the display mark is Arabic numerals, the display mark is provided with ten positions which are respectively '0', '1', '2', '3', '4', '5', '6', '7', '8' and '9', and the ten display marks are sequentially arranged on the side end faces of the ten positions of the display block main body.

Further, for the spacing spout slidable mounting who imitates under the white key has imitative white key cooperation mechanism, imitative white key cooperation mechanism including: the limiting sliding block A is of an isosceles trapezoid block structure integrally, a tangent plane A is arranged at the front end of the limiting sliding block A and is of an inclined plane structure, and the limiting sliding block A is connected in a limiting sliding groove in a sliding mode; the top end faces of the driving teeth A and the limiting sliding blocks A are provided with two driving teeth A, and the driving teeth A adopt a half-gear structure; and the reset spring A is fixedly installed on the right end face of the limiting sliding block A, and the other end of the reset spring A is fixedly connected with the rear side face of the inner end of the limiting sliding groove.

Compared with the prior art, the invention has the following beneficial effects:

the invention displays the spectrum through the spectrum display equipment and the auxiliary exercise main body when a student exercises independently, the student can exercise through pressing the simulated white key and the simulated black key which imitate relative scales in the auxiliary exercise main body according to the scales corresponding to the spectrum taught by the teacher, and when the student presses the simulated white key and the simulated black key once according to the scales corresponding to the spectrum, the exercise auxiliary display mechanism at the relative position can rotate the feeding surface, so that after one spectrum is stopped, the teacher can quickly judge whether the student has rational spectrum display corresponding to the scales by observing the display marks displayed on the exercise auxiliary display mechanism at the relative positions of the simulated white key and the simulated black key before each student, thereby facilitating the subsequent targeted teaching, and the student exercises through pressing the simulated white key and the simulated black key which imitate relative scales in the auxiliary exercise main body through the spectrum displayed on the spectrum display equipment, the memory of students on the connection between the spectrum and the scale can be enhanced, and the excellent spectrum auxiliary exercise effect is realized.

Drawings

Fig. 1 is a schematic axial view of the present invention.

Fig. 2 is a schematic view of the exercise aid display mechanism of the present invention.

Fig. 3 is a schematic structural diagram of a white key imitation matching mechanism and a black key imitation matching mechanism of the invention.

Fig. 4 is a schematic structural diagram of the auxiliary exercise main body of the invention.

Fig. 5 is a partially sectional enlarged view of the auxiliary exercise body according to the present invention.

FIG. 6 is a schematic view of a partial enlarged structure of the bottom ends of the pseudo-white key and the pseudo-black key according to the present invention.

FIG. 7 is a schematic view of a part of a cross-sectional enlarged structure of the pseudo-white key of the present invention in a mounted state.

FIG. 8 is a schematic view of a partial cross-sectional enlarged structure of the pseudo black key of the present invention in a mounted state.

Fig. 9 is a schematic view of the present invention at a part enlarged in fig. 1.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a spectrum display device;

2. a supporting frame;

3. a practice-assisting body;

301. imitating a white key; 30101. a circular groove A; 30102. a rotating shaft A; 30103. pressing the column A; 30104. a reset member A; 302. imitating a black key; 30201. a circular groove B; 30202. a rotating shaft B; 30203. a pressing column B; 30204. a reset member B; 303. pressing the groove; 304. a rotating shaft C; 305. a limiting chute;

4. an exercise assistance display mechanism;

401. a display block main body; 402. a rubber sleeve; 403. displaying the identification; 404. a driven gear;

5. a white key imitation mating mechanism;

501. a limiting slide block A; 502. cutting into a section A; 503. a drive tooth A; 504. a return spring A;

6. a black key imitation matching mechanism;

601. a limiting slide block B; 602. cutting into a section B; 603. a drive tooth B; 604. and a return spring B.

Detailed Description

Embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment is as follows:

as shown in figures 1 to 9:

the invention provides a spectrum auxiliary exercise device for teaching based on digital music, which comprises: the auxiliary exercise main body 3 is of a rectangular block structure, and the auxiliary exercise main body 3 is fixedly arranged on the top end face of the bearing frame 2; the spectrum display device 1, the spectrum display device 1 is fixedly arranged on the top end face of the bearing frame 2, and the spectrum display device 1 is contacted with the auxiliary exercise main body 3.

With the above arrangement, when a student performs an individual exercise, the spectrum is displayed on the spectrum display device 1, and the student can perform an exercise by pressing the white-simulated key 301 and the black-simulated key 302, which are simulated with respect to the scale, in the auxiliary exercise main body 3 according to the scale corresponding to the spectrum taught by the teacher.

Wherein, supplementary exercise main part 3 is including: the pressing groove 303, the pressing groove 303 is a rectangular groove structure, and the pressing groove 303 is arranged on the top end surface of the auxiliary exercise main body 3; the rotating shaft C304 is fixedly arranged between the left side surface and the right side surface of the inner end of the pressing groove 303, and the rotating shaft C304 is positioned at the rear side part; a row of white-like keys 301 and black-like keys 302 which are consistent with the arrangement of the piano keys are arranged in the pressing groove 303, and the white-like keys 301 and the black-like keys 302 are both rotatably connected with a rotating shaft C304.

Through the scheme, students can practice by pressing the simulated white keys 301 and the simulated black keys 302 simulated relative to the musical scale in the auxiliary practice main body 3 according to the musical scale corresponding to the spectrum taught by the teacher.

Wherein, supplementary exercise main part 3 is including: the longitudinal section of the limiting sliding groove 305 is in an isosceles trapezoid structure; the bottom surface of the inner end of the pressing groove 303 is provided with a limit sliding groove 305 corresponding to the positions of each white-like key 301 and each black-like key 302; the white-key-like 301 integrally adopts a rectangular block structure, and the white-key-like 301 comprises: each white-imitating key 301 is provided with a circular groove A30101, the circular grooves A30101 penetrate through the top end face and the bottom end face of the white-imitating key 301, and the axis of each circular groove A30101 is provided with a rotating shaft A30102; the pressing column A30103 is of a cylindrical structure integrally, and the bottom end of the pressing column A30103 is of a hemispherical structure; a pressing column A30103 is arranged at the front side part of the round groove A30101 adjacent to the bottom end face of each white-like key 301; the reset piece A30104 is a spring, the position of the bottom end face of each white-like key 301, which is adjacent to the front side, is provided with a reset piece A30104, and the reset piece A30104 is fixedly connected with the bottom face of the inner end of the pressing groove 303; the black-like key 302 is integrally of a rectangular block structure, and the black-like key 302 comprises: each black-imitating key 302 is provided with a circular groove B30201, the circular groove B30201 penetrates through the top end surface and the bottom end surface of the black-imitating key 302, and the axle center of each circular groove B30201 is provided with a rotating shaft B30202; the pressing column B30203 is integrally of a cylindrical structure, and the bottom end of the pressing column B30203 is of a hemispherical structure; a pressing column B30203 is arranged at the front side part of the round groove B30201 adjacent to the bottom end surface of each black key 302; the reset piece B30204 and the reset piece B30204 are springs, the position on the front side adjacent to the bottom end surface of each black-like key 302 is provided with one reset piece B30204, and the reset piece B30204 is fixedly connected with the bottom surface of the inner end of the pressing groove 303.

Through the scheme, the simulated white keys 301 and the simulated black keys 302 are matched with the simulated white key matching mechanism 5 and the simulated black key matching mechanism 6, and when the simulated white keys 301 and the simulated black keys 302 are pressed once, the exercise auxiliary display mechanism 4 at the opposite position can rotate to feed one surface.

Wherein, still including exercise auxiliary display mechanism 4, all rotate in circular recess A30101 and the circular recess B30201 and install a set of exercise auxiliary display mechanism 4, exercise auxiliary display mechanism 4 including: a display block main body 401, the display block main body 401 being a decagonal block structure as a whole; the rubber sleeve 402 is embedded in and penetrated in the center of the right end face of the display block main body 401, and the rubber sleeve 402 is installed in an interference fit with the rotating shaft A30102 and the rotating shaft B30202; driven gear 404, display piece main part 401 left end face fixed mounting has driven gear 404, and driven gear 404 and the coaxial setting of display piece main part 401 left end face center.

Through above-mentioned scheme, through the setting of rubber sleeve 402, guarantee that exercise auxiliary display mechanism 4 is under no external drive, it can not take place to rotate, guarantees that display block main part 401 terminal surface up is unchangeable.

Wherein, exercise auxiliary display mechanism 4 includes: the display marks 403 are arabic numerals, the display marks 403 are provided with ten positions, which are respectively "0", "1", "2", "3", "4", "5", "6", "7", "8" and "9", and the ten display marks 403 are sequentially provided on the side end faces of the ten positions of the display block main body 401.

Through the scheme, a teacher can quickly judge whether the students have the correspondence between the spectrum analysis display and the scale by observing the display marks 403 displayed on the exercise auxiliary display mechanism 4 at the relative positions of the pseudo-white key 301 and the pseudo-black key 302 in front of each student, so as to conveniently carry out targeted teaching in the following process.

Wherein, slidable mounting has imitative white key cooperation mechanism 5 for imitative white key 301 in the spacing spout 305 under, imitative white key cooperation mechanism 5 including: the limiting slide block A501 and the limiting slide block A501 are integrally in an isosceles trapezoid block structure, a tangent plane A502 is arranged at the front end of the limiting slide block A501, the tangent plane A502 is in an inclined plane structure, and the limiting slide block A501 is connected in the limiting slide groove 305 in a sliding mode; the top end surfaces of the driving teeth A503 and the limiting sliding block A501 are provided with two driving teeth A503, and the driving teeth A503 adopt a half gear tooth structure; the reset spring A504, the reset spring A504 is fixedly mounted on the right end face of the limiting slide block A501, and the other end of the reset spring A504 is fixedly connected with the rear side face of the inner end of the limiting chute 305; have imitative black key cooperation mechanism 6 for sliding mounting in the spacing spout 305 under imitative black key 302, imitative black key cooperation mechanism 6 including: the limiting sliding block B601 is of an isosceles trapezoid block structure integrally, a tangent plane B602 is arranged at the front end of the limiting sliding block B601, the tangent plane B602 is of an inclined plane structure, and the limiting sliding block B601 is connected in the limiting sliding groove 305 in a sliding mode; the top end surfaces of the driving teeth B603 and the limiting slide block B601 are provided with two driving teeth B603, and the driving teeth B603 adopt a half gear tooth structure; the reset spring B604 is fixedly arranged on the right end face of the limiting sliding block B601, and the other end of the reset spring B604 is fixedly connected with the rear side face of the inner end of the limiting sliding groove 305; when the reset piece A30104 and the reset piece B30204 are in a normal extension state, the driven gear 404 is not in contact with the driving tooth A503 and the driving tooth B603, when the reset piece A30104 and the reset piece B30204 are in a compression state, the driven gear 404 is meshed with the driving tooth A503 and the driving tooth B603, the pressing column A30103 presses the tangent plane A502, the driving tooth A503 drives the driven gear 404 to rotate and feed, the pressing column B30203 presses the tangent plane B602, and the driving tooth B603 also drives the driven gear 404 to rotate and feed.

When in use:

when the music teaching is exercised, firstly a teacher can teach the corresponding scale of a student according to the display of the spectrum, and after the music teaching is carried out for a period of time, the student needs to exercise by himself, and the specific exercise operation steps are as follows:

the spectrum display device 1 displays the spectrum, and the student can practice by pressing the simulated white key 301 and the simulated black key 302 simulated relative to the scale in the auxiliary practice body 3 according to the scale corresponding to the spectrum taught by the teacher:

when the white-like key 301 is pressed, the white-like key 301 rotates along the rotating shaft C304, the reset piece a30104 is compressed, at this time, the driven gear 404 in the exercise auxiliary display mechanism 4 rotatably mounted on the rotating shaft B30202 is engaged with the driving gear a503 in the white-like key matching mechanism 5, and at the same time, the hemispherical bottom end of the pressing column a30103 is pressed against the tangent plane a502, because the tangent plane a502 is in an inclined plane structure, when the hemispherical bottom end of the pressing column a30103 is pressed against the tangent plane a502, the limiting slide block a501 is pushed to slide backwards along the limiting slide groove 305, and the reset spring a504 is compressed, and when the limiting slide block a501 is pushed to slide backwards along the limiting slide groove 305, the driving gear a503 drives the driven gear 404 to rotate and feed one surface, so that one side end surface of the exercise auxiliary display mechanism 4, which is indicated as "0", is converted into one side end surface of "1", and when the white-like key 301 is released, the reset piece B30204 resets and rebounds without pressing the pressing column B30203, the reset spring A504 resets, the limit slide block A501 slides to the original position along the limit sliding chute 305 again, and the driving tooth A503 adopts a half-gear tooth structure, as shown in figure 7, in the process of resetting the limit slide block A501 and resetting the white key 301, the driving tooth A503 cannot be contacted with the driven gear 404, and the display block main body 401 on the rotary feeding side cannot be influenced;

when the artificial black key 302 is pressed, the artificial black key 302 rotates along the rotating shaft C304, the reset member B30204 is compressed, and at this time, the driven gear 404 of the exercise auxiliary display mechanism 4 rotatably mounted on the rotating shaft B30202 engages with the driving gear B603 of the artificial black key matching mechanism 6, and the hemispherical bottom end of the pressing column B30203 presses against the tangent plane B602, because the tangent plane B602 has an inclined surface structure, when the hemispherical bottom end of the pressing column B30203 presses against the tangent plane B602, the limiting slider B601 is pushed to slide backward along the limiting chute 305, and the reset spring B604 is compressed, and when the limiting slider B601 is pushed to slide backward along the limiting chute 305, the driving gear B603 drives the driven gear 404 to rotate and feed one side, so that the side end surface of the exercise auxiliary display mechanism 4 where the mark 403 is "0" is converted into a side end surface of "1", and when the artificial black key 302 is released, the reset member B30204 resets and rebounds without pressing down the pressing column B30203, the reset spring B604 resets, the limit sliding block B601 slides to the original position along the limit sliding chute 305 again, and the driving tooth B603 adopts a half-gear structure, as shown in figure 8, in the reset process of the limit sliding block B601 and the reset process of the black-imitated key 302, the driving tooth B603 cannot be in contact with the driven gear 404, and the display block main body 401 on one side of rotating and feeding is not influenced;

therefore, when the simulated white key 301 and the simulated black key 302 are pressed once, the exercise auxiliary display mechanism 4 at the opposite position rotates the feeding surface, so that after a spectrum is stopped, a teacher can observe the display mark 403 displayed on the exercise auxiliary display mechanism 4 at the opposite position of the simulated white key 301 and the simulated black key 302 in front of each student, thereby quickly judging whether the student has the corresponding relationship between the spectrum display and the scale, so as to facilitate the subsequent targeted teaching, and the student can exercise by pressing the simulated white key 301 and the simulated black key 302 in the auxiliary exercise main body 3 corresponding to the scale through the spectrum displayed on the spectrum display device 1, thereby enhancing the memory of the student on the relationship between the spectrum and the scale and realizing the excellent spectrum auxiliary exercise effect.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a supplementary exercise device of spectrum based on usefulness is given lessons to digital music which characterized in that: the auxiliary exercise device comprises an auxiliary exercise main body, wherein the whole auxiliary exercise main body is of a rectangular block structure, and the auxiliary exercise main body is fixedly arranged on the top end surface of a bearing frame; the spectrum display device is fixedly arranged on the top end face of the bearing frame and is in contact with the auxiliary exercise main body; the auxiliary exercise main body comprises: the longitudinal section of the limiting sliding chute is of an isosceles trapezoid structure; the bottom surface of the inner end of the pressing groove is provided with a limiting sliding groove relative to each white key and each black key;

still including practicing supplementary display mechanism, all rotate in circular recess A and the circular recess B and install a set of practice supplementary display mechanism, practice supplementary display mechanism including: the display block main body is of a decagon block structure; the rubber sleeve is embedded in the center of the right end face of the display block main body and is installed in a penetrating mode, and the rubber sleeve is installed in an interference fit mode with the rotating shaft A and the rotating shaft B; the driven gear is fixedly arranged on the left end face of the display block main body, and the driven gear and the center of the left end face of the display block main body are coaxially arranged; the exercise auxiliary display mechanism comprises: the display mark is an Arabic number, the display mark is provided with ten positions which are respectively '0', '1', '2', '3', '4', '5', '6', '7', '8' and '9', and the ten display marks are sequentially arranged on the side end faces of the ten positions of the display block main body;

have imitative white key cooperation mechanism for imitative sliding fit in the spacing spout under the white key, imitative white key cooperation mechanism including: the limiting sliding block A is of an isosceles trapezoid block structure integrally, a tangent plane A is arranged at the front end of the limiting sliding block A and is of an inclined plane structure, and the limiting sliding block A is connected in a limiting sliding groove in a sliding mode; the top end faces of the driving teeth A and the limiting sliding blocks A are provided with two driving teeth A, and the driving teeth A adopt a half-gear structure; the reset spring A is fixedly arranged on the right end face of the limiting sliding block A, and the other end of the reset spring A is fixedly connected with the rear side face of the inner end of the limiting sliding chute;

have imitative black key cooperation mechanism for sliding mounting in the spacing spout under imitative black key, imitative black key cooperation mechanism including: the limiting sliding block B is integrally in an isosceles trapezoid block structure, a tangent plane B is arranged at the front end of the limiting sliding block B and is in an inclined plane structure, and the limiting sliding block B is connected in a limiting sliding groove in a sliding mode; the top end faces of the driving teeth B and the limiting sliding blocks B are provided with two driving teeth B, and the driving teeth B adopt a half-gear structure; the reset spring B is fixedly arranged on the right end face of the limiting sliding block B, and the other end of the reset spring B is fixedly connected with the rear side face of the inner end of the limiting sliding chute;

the driven gear is not contacted with the driving tooth A and the driving tooth B under the common extension state of the reset piece A and the reset piece B, the driven gear is meshed with the driving tooth A and the driving tooth B under the compression state of the reset piece A and the reset piece B, the pressing column A presses the tangent plane A, the driving tooth A drives the driven gear to rotate to feed one side, the pressing column B presses the tangent plane B, and the driving tooth B also drives the driven gear to rotate to feed one side.

2. A spectrum-based auxiliary exercise device for teaching on digitized music as claimed in claim 1, wherein: the auxiliary exercise main body comprises: the pressing groove is of a rectangular groove structure and is formed in the top end face of the auxiliary exercise main body; the rotating shaft C is fixedly arranged between the left side surface and the right side surface of the inner end of the pressing groove and is positioned at the rear side part; a row of white-like keys and black-like keys which are consistent with the arrangement of the piano keys are arranged in the pressing groove, and the white-like keys and the black-like keys are rotatably connected with the rotating shaft C.

3. A spectrum-based auxiliary exercise device for teaching on digitized music as claimed in claim 1, wherein: the whole rectangle block structure that adopts of imitative white key, imitative white key including: each white key imitation is provided with a round groove A, the round grooves A penetrate through the top end face and the bottom end face of the white key imitation, and the axis part of each round groove A is provided with a rotating shaft A; the pressing column A is integrally of a cylindrical structure, and the bottom end of the pressing column A is of a hemispherical structure; a pressing column A is arranged at the front side part of each white key imitating bottom end surface adjacent to the circular groove A; the reset piece A is a spring, the position of the adjacent front side of the bottom face of each white key imitation is provided with the reset piece A, and the reset piece A is fixedly connected with the bottom face of the inner end of the pressing groove.

4. A spectrum-based auxiliary exercise device for teaching on digitized music as claimed in claim 1, wherein: the whole rectangular block structure that adopts of imitative black key, imitative black key including: each black-imitating key is provided with a circular groove B, the circular grooves B penetrate through the top end surface and the bottom end surface of the black-imitating key, and the axis part of each circular groove B is provided with a rotating shaft B; the pressing column B is integrally of a cylindrical structure, and the bottom end of the pressing column B is of a hemispherical structure; a pressing column B is arranged at the front side part of each black key imitating bottom end surface adjacent to the circular groove B; the reset piece B is a spring, the adjacent front side part of the bottom end face of each black-key-imitated bottom is provided with the reset piece B, and the reset piece B is fixedly connected with the bottom face of the inner end of the pressing groove.