阅读说明：本技术 音乐用节拍器 (Metronome for music ) 是由 不公告发明人 于 2019-09-27 设计创作，主要内容包括：本发明涉及音乐用节拍器,包括壳体,壳体上有轴线前后设置的可转动的环形转盘,转盘上有沿转盘的轴线圆周均布并径向滑动贯穿转盘的多个滑销,滑销与转盘经径向弹簧连接使滑销产生向心滑动；壳体上有置于转盘圆周外侧的径向滑动的楔形滑块,楔形滑块与壳体经弹簧连接使楔形滑块的楔形端与转盘接触；壳体上有与转盘同轴的转轴,转轴的后部与转盘连接,转轴的前部经连接有轴向滑动的轴套,轴套上有与滑销一一对应的多个径向凸台,多个凸台的轴向长度不完全相同,凸台的后端面为楔形面；本发明可实现节拍的动态调节并清晰表达出节拍的强弱变化。(The invention relates to a metronome for music, including the body, there is rotatable annular rotary table that the axis sets up in the front and back on the body, there are a plurality of sliding pins that are distributed and slipped and run through the rotary table radially along the axis circumference of the rotary table on the rotary table, the sliding pin is connected with rotary table through the radial spring so that the sliding pin produces the centripetal slip; the shell is provided with a wedge-shaped sliding block which is arranged on the outer side of the circumference of the rotary table and slides in the radial direction, and the wedge-shaped sliding block is connected with the shell through a spring so that the wedge-shaped end of the wedge-shaped sliding block is contacted with the rotary table; the shell is provided with a rotating shaft which is coaxial with the rotating disc, the rear part of the rotating shaft is connected with the rotating disc, the front part of the rotating shaft is connected with a shaft sleeve which axially slides, the shaft sleeve is provided with a plurality of radial bosses which are in one-to-one correspondence with the sliding pins, the axial lengths of the bosses are not completely the same, and the rear end surfaces of the bosses are wedge-shaped surfaces; the invention can realize the dynamic adjustment of the beat and clearly express the strength change of the beat.)

1. The metronome for the music comprises a shell (1) and is characterized in that a rotatable annular turntable (2) with an axis arranged in front and at the back is arranged on the shell (1), a plurality of sliding pins (3) which are uniformly distributed along the circumference of the axis of the turntable (2) and radially slide to penetrate through the turntable (2) are arranged on the turntable (2), the sliding pins (3) are connected with the turntable (2) through radial springs (4), and the sliding pins (3) generate centrifugal sliding under the elastic force action of the radial springs (4); the wedge-shaped sliding block (5) which is arranged on the outer side of the circumference of the rotary table (2) and slides in the radial direction is arranged on the shell (1), the wedge-shaped sliding block (5) is connected with the shell (1) through a spring (6), and under the action of the elastic force of the spring (6), the wedge-shaped end of the wedge-shaped sliding block (5) is in contact with the outer ring surface of the rotary table (2); the rotary shaft (7) is coaxially arranged with the rotary table (2) on the shell (1), the rear portion of the rotary shaft (7) is connected with the rotary table (2), the front portion of the rotary shaft (7) is connected with a shaft sleeve (9) which axially slides with the rotary shaft (7) through a flat key (8), a plurality of radial bosses (10) which are in one-to-one correspondence with the sliding pins (3) are arranged on the shaft sleeve (9), the front end faces of the bosses (10) are mutually aligned, the rear end faces of the bosses (10) are wedge-shaped faces, and the axial lengths of the radial bosses (10) are not completely the same;

the turntable (2) is provided with a star-shaped frame (11) arranged at the rear side of the turntable (2), and the rear part of the rotating shaft (7) is connected with the planet carrier (11);

twelve sliding pins (3) and corresponding bosses (10) are respectively provided, the twelve bosses (10) are divided into three groups, which are sequentially as follows: a four-two rhythm group (10a) consisting of two bosses (10) with the longest length, a four-four rhythm group (10b) consisting of two bosses (10) with the middle length and an eight-three rhythm group (10c) consisting of eight bosses (10) with the shortest length; any boss (10) in the four-two rhythm group (10a) is divided into three sections, namely a rear section (a1), a middle section (a2) and a front section (a3), of which the heights are sequentially increased from back to front, any two non-adjacent bosses (10) in the four-two rhythm group (10b) are divided into two sections, namely a low section (b1) and a high section (b2), of which the heights are sequentially increased from back to front, the heights of the rear section (a1) and the low section (b1) are equal to the height of the boss (10) in the eight-three rhythm group (10c), and the heights of the front section (a3) and the high section (b2) are equal to the height of the other boss (10) in the four-two rhythm group (10 a); the four-two rhythm set (10a), the four-four rhythm set (10b) and the eight-three rhythm set (10c) are sequentially arranged at equal intervals, and two adjacent bosses (10) in the eight-three rhythm set (10c) are connected into a whole; the rear sections (a1) of the two bosses (10) in the four-two rhythm group (10a) form an arrangement with one higher part and one lower part along the circumferential direction of the shaft sleeve (9); the middle sections (a2) of the two bosses (10) in the four-two rhythm group (10a) and the low sections (b1) of the two bosses (10) in the four-four rhythm group (10b) form high, low, secondary high and low arrangement along the circumferential direction of the shaft sleeve (9); the front sections (a3) of two bosses (10) in the four-two rhythm group (10a), the high sections (b2) of two bosses (10) in the four-four rhythm group (10b) and the bosses (10) in the eight-three rhythm group (10c) form a 'high, low and low' cyclic arrangement along the circumferential direction of the shaft sleeve (9).

2. Metronome for music according to claim 1, characterized in that the housing (1) has a sign (12) which is vertically slidable on the front side of the housing (1), said sign (12) being connected to the wedge-shaped slider (5).

3. Metronome for music according to claim 1, characterized in that the sleeve (9) is provided with a dial (14) coaxially connected to the sleeve (9) via a bearing (13), the dial (14) is provided with a rod (15) radially penetrating the housing (1), and the housing (1) is provided with a slot (16) corresponding to the rod (15) and arranged in the axial direction of the sleeve (9).

4. Metronome for music according to claim 1, characterized in that the housing (1) is provided with a motor (17), and the motor (17) is in transmission connection with the rotating shaft (7) via a belt mechanism (18).

5. Metronome for music according to claim 1, characterized in that the shaft (7) is driven by a spring mechanism.

Technical Field

The invention relates to a music teaching tool, in particular to a metronome for music.

Background

The metronome is an indispensable auxiliary instrument in music teaching and musical instrument singing practice, and particularly for beginners, the metronome can help students to know the beats and identify the beats more quickly and deeply, so that a foundation is laid for future learning; the traditional pendulum type metronome is generally adopted in the music teaching at present, the metronome has stable beat and high beat recognition degree, does not depend on electric energy, and is deeply loved by big music lovers; however, when the metronome switches beats or changes beats, the metronome must be stopped first, then the pendulum mass is slid, the swing speed adjustment is realized according to the potential energy change of the pendulum mass at different heights, although scales are marked on the metronome, for a beginner, because the metronome does not form sensitive rhythm sensing capability and prediction capability, the user can hardly grasp what rhythm the user needs before the adjustment, and in the adjustment process, because the metronome is in a pause state, the user cannot intuitively sense the real feeling of rhythm at different scale values, therefore, the user usually needs to search and adjust for many times to find the needed rhythm and speed, and obviously, inconvenience exists.

In addition, the existing metronome only provides regular swing and click sound, but cannot provide strong and weak changes of beats according to different beat types, and in music learning, particularly musical instrument playing, the beating is often robbed or dragged due to poor grasp of the strong and weak, so that certain trouble is brought to students.

Disclosure of Invention

In order to overcome the technical defects in the prior art, the invention provides a music metronome, which aims to solve the problems that the conventional metronome cannot be dynamically adjusted and cannot reflect the strength change of a beat type.

The technical scheme for solving the problem is as follows: the rotary disc type seal ring comprises a shell, wherein a rotatable annular rotary disc is arranged on the shell in a front-back mode, the axis of the rotary disc is provided with a plurality of sliding pins which are uniformly distributed along the circumference of the axis of the rotary disc and penetrate through the rotary disc in a radial sliding mode, namely one ends of the sliding pins are arranged on the inner side of an inner ring surface of the rotary disc, and the other ends of the sliding pins can penetrate through the rotary disc in a sliding mode and are arranged on the outer side of an outer ring surface of the rotary disc; the sliding pin is connected with the turntable through a radial spring, and the sliding pin generates centrifugal sliding under the action of the elastic force of the radial spring; the shell is provided with a wedge-shaped sliding block which is arranged on the outer side of the circumference of the rotary table and slides in the radial direction, the wedge-shaped sliding block is connected with the shell through a spring, and the wedge-shaped end of the wedge-shaped sliding block is contacted with the outer ring surface of the rotary table under the action of the elastic force of the spring; the casing on have the pivot with the coaxial setting of carousel, the rear portion of pivot is connected with the carousel and is made carousel and pivot rotate simultaneously, the front portion of pivot be connected with through the parallel key with pivot endwise slip's axle sleeve, there are a plurality of radial bosss with the sliding pin one-to-one on the axle sleeve, the preceding terminal surface of a plurality of bosss aligns each other, the rear end face of boss makes smooth transition between the mesa of boss and the outer fringe face of axle sleeve for the wedge face, in order to do benefit to the sliding pin jack-up that the boss will correspond, a plurality of radial bosss divide into a plurality of rhythm groups, the length of boss is the same and along the axis circumference equipartition of axle sleeve in arbitrary rhythm group, the length of boss and the highly uniform difference and along the axis of axle sleeve in proper order partition interval arrangement in different rhythm groups.

The invention can dynamically adjust the metronome in the running process so as to timely sense the changed rhythm, and can display the strong and weak sound changes among beats under different beats in the process of playing the beats, so that the beats are clearer and more recognizable, and the conditions of beating robbery or dragging beats and the like are avoided.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a right side view of the present invention.

Fig. 3 is a cross-sectional view a-a of fig. 1 of the present invention.

Fig. 4 is a sectional view taken along line B-B of fig. 3 according to the present invention.

Fig. 5 is a cross-sectional view taken along line C-C of fig. 3 in accordance with the present invention.

Fig. 6 is a cross-sectional view taken along line D-D of fig. 3 in accordance with the present invention.

Fig. 7 is a cross-sectional view E-E of fig. 3 according to the present invention.

Fig. 8 is an axial cross-sectional view of the present invention.

Fig. 9 is a perspective view of the boss 10 and the boss 9 of the present invention.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 9, the present invention includes a housing 1, the housing 1 has a rotatable annular turntable 2 with an axis arranged in front and back, the turntable 2 has a plurality of sliding pins 3 uniformly distributed along the circumference of the axis of the turntable 2 and sliding through the turntable 2 in radial direction, i.e. one end of the sliding pin 3 is disposed inside the inner annular surface of the turntable 2, and the other end of the sliding pin 3 can slide through the turntable 2 and be disposed outside the outer annular surface of the turntable 2; the sliding pin 3 is connected with the rotary table 2 through a radial spring 4, and the sliding pin 3 generates centrifugal sliding under the action of the elastic force of the radial spring 4; the casing 1 is provided with a wedge-shaped sliding block 5 which is arranged on the outer side of the circumference of the rotary table 2 and slides in the radial direction, the wedge-shaped sliding block 5 is connected with the casing 1 through a spring 6, under the action of the elastic force of the spring 6, the wedge-shaped end of the wedge-shaped sliding block 5 is contacted with the outer ring surface of the rotary table 2, when the rotary table 2 rotates, any sliding pin 3 is contacted with the wedge-shaped end of the wedge-shaped sliding block 5 to enable the wedge-shaped sliding block 5 to slide in a centrifugal mode, when any sliding pin 3 crosses the position of the wedge-shaped sliding block 5, the wedge-shaped sliding block 5 slides centripetally under the action of the elastic force of the spring 6 and is contacted with the outer ring surface of the rotary table 2 again, when a plurality of sliding pins 3 are contacted with the wedge-shaped end of the wedge-shaped sliding block 5 in sequence, the radial reciprocating sliding of the wedge-shaped sliding block 5 generates impact sound which is beat sound when the wedge-shaped sliding block 5 is contacted with the rotary table 2 each time; the shell 1 is provided with a rotating shaft 7 which is coaxial with the rotating disc 2, the rear part of the rotating shaft 7 is connected with the rotating disc 2 to enable the rotating disc 2 and the rotating shaft 7 to rotate simultaneously, the front part of the rotating shaft 7 is connected with a shaft sleeve 9 which axially slides with the rotating shaft 7 through a flat key 8, the shaft sleeve 9 is provided with a plurality of radial bosses 10 which are in one-to-one correspondence with the sliding pins 3, the front end surfaces of the bosses 10 are mutually aligned, the rear end surfaces of the bosses 10 are wedge-shaped surfaces to enable the table surface of the bosses 10 to be in smooth transition with the outer edge surface of the shaft sleeve 9, so that the bosses 10 can jack up the corresponding sliding pins 3, the axial lengths of the bosses are not completely the same and are divided into a plurality of rhythm groups according to the axial length, the length of the bosses 10 in any rhythm group is the same and is uniformly distributed along the circumference of the shaft sleeve 9, and the lengths and the heights of the bosses 10 in different rhythm groups are different and are sequentially arranged at equal intervals along the axis of the shaft sleeve 9; when the shaft sleeve 9 axially slides, the sliding pins 3 corresponding to different rhythm groups successively jack up different radial distances, so that when the shaft sleeve 9 stops at different set positions, the sliding pins 3 corresponding to different rhythm groups slide out to the outer side of the circumference of the rotary table 2 according to different radial distances, the radial reciprocating sliding times and the sliding distances of the wedge-shaped sliding block 5 are different when the rotary table 2 rotates for a circle, impact of frequency and strength between the wedge-shaped sliding block 5 and the rotary table 2 which change repeatedly according to rules is realized, and the beat number and the strength relation under different beat types are played.

Preferably, the turntable 2 is provided with a spider 11 arranged at the rear side of the turntable 2, and the rear part of the rotating shaft 7 is connected with the spider 11, so that the turntable 2 and the rotating shaft 7 rotate simultaneously.

Preferably, the shell 1 on have and arrange the vertical gliding sign 12 in shell 1 front side in, sign 12 is connected with wedge slider 5, and when wedge slider 5 reciprocated sliding, sign 12 slides so that carry out the direct viewing to the beat in step along with it.

Preferably, the shaft sleeve 9 is provided with a drive plate 14 coaxially connected with the shaft sleeve 9 through a bearing 13, the drive plate 14 is provided with a shift lever 15 radially penetrating through the housing 1, the housing 1 is provided with a sliding groove 16 corresponding to the shift lever 15 and arranged along the axial direction of the shaft sleeve 9, when the shift lever 15 drives the drive plate 14 to slide along the sliding groove 16, the shaft sleeve 9 is pushed by the drive plate 14 to synchronously slide, and the drive plate 14 is connected with the shaft sleeve 9 through the bearing 13 and can always rotate relatively.

Preferably, the housing 1 is provided with a motor 17 and a matched motor speed control system, and the motor 17 is in transmission connection with the rotating shaft 7 through a belt mechanism 18.

Preferably, the rotating shaft 7 is driven by a spring mechanism.

Preferably, twelve sliding pins 3 and twelve corresponding bosses 10 are provided, and the twelve bosses 10 are divided into three groups, which are sequentially: a four-two rhythm group 10a consisting of two bosses 10 with the longest length, a four-four rhythm group 10b consisting of two bosses 10 with the middle length, and an eight-three rhythm group 10c consisting of eight bosses 10 with the shortest length; any boss 10 in the four-two rhythm group 10a is divided into three sections, namely a rear section a1, a middle section a2 and a front section a3, with the heights sequentially increased from back to front, any two non-adjacent bosses 10 in the four-four rhythm group 10b are divided into two sections, namely a low section b1 and a high section b2, with the heights sequentially increased from back to front, the height of the rear section a1 and the height of the low section b1 are equal to the height of the boss 10 in the eight-three rhythm group 10c, and the height of the front section a3 and the height of the high section b2 are equal to the height of the other boss 10 in the four-two rhythm group 10 a; the four-two rhythm set 10a, the four-four rhythm set 10b and the eight-three rhythm set 10c are sequentially arranged at equal intervals, and two adjacent bosses 10 in the eight-three rhythm set 10c are connected into a whole; the rear sections a1 of the two bosses 10 in the four-two rhythm group 10a form an arrangement with a high section and a low section along the circumferential direction of the shaft sleeve 9, referring to fig. 5 and 9, when the corresponding slide pin 3 is ejected out by the section, the wedge-shaped slide block 5 forms continuous strong and weak impact along with the rotation of the rotary disc 2, namely a four-two beat rhythm type; the middle sections a2 of the two bosses 10 in the four-two rhythm group 10a and the low sections b1 of the two bosses 10 in the four-four rhythm group 10b form a high, low, secondary high and low arrangement along the circumferential direction of the shaft sleeve 9, referring to fig. 6 and 9, when the corresponding slide pin 3 is ejected, the wedge-shaped slide block 5 forms continuous strong, weak, secondary strong and weak impact along with the rotation of the rotary disc 2, namely a four-beat two-beat shape; the front sections a3 of the two bosses 10 in the four-two rhythm group 10a, the high sections b2 of the two bosses 10 in the four-four rhythm group 10b and the bosses 10 in the eight-three rhythm group 10c form a high, low and low circular arrangement along the circumferential direction of the shaft sleeve 9, referring to fig. 7 and 9, when the corresponding slide pin 3 is ejected by the sections, the impact generated by the wedge-shaped slide block 5 along with the rotation of the rotary disc 2 forms a continuously repeated 'strong and weak' type, namely an eight-three beat rhythm type.

In summary, the invention drives the rotating shaft 7 through the motor 17 or the clockwork mechanism, etc. to make the rotating disc 2 and the shaft sleeve 9 rotate simultaneously, and the bearing 13 can be used to separate the rotation of the shaft sleeve 9 from the drive plate 14, in the rotating process of the rotating disc 2, the shaft sleeve 9 can be axially adjusted through the drive plate 14 at any time, according to the adjusted position, the bosses 10 in different rhythm groups respectively eject the corresponding sliding pins 3 to the outer side of the circumference of the rotating disc 2 through the wedge-shaped surface at the rear end and keep the ejection height through the bosses 10, the ejected sliding pins 3 are in a circumferential distribution state with different lengths but in sequential circular arrangement, so that the extended sliding pins 3 sequentially push the wedge-shaped sliding blocks 5 to slide for different distances when the rotating disc 2 rotates, and further the wedge-shaped sliding blocks 5 generate strong and weak impacts on the rotating disc 2, thereby forming regular strong and weak beats.

The invention not only can realize the due function of the metronome, but also can dynamically adjust the sliding pin through the lug boss on the shaft sleeve in the running process of the metronome, and timely sense the changed rhythm so as to meet the actual requirement of a user; in the process of beat playing, the regular change of the sliding distance of the wedge-shaped sliding block is realized through different lengths of the sliding pin, so that the strong and weak sound change among beats under different beats is obtained, the beats are clearer and more recognizable, beat confusion caused by single beat sound which is not changed after long-time repetition is avoided, and the occurrence of improper beat conditions such as beat snatching or dragging is effectively reduced.