阅读说明：本技术 一种立式钢琴的导音装置 (Sound guide device of upright piano ) 是由 杨于佳 于 2019-11-22 设计创作，主要内容包括：本发明属于乐器技术领域,具体公开了一种立式钢琴的导音装置,包括立式钢琴主体、导音板和修音板,立式钢琴主体的右端固定连接有发音箱,发音箱的外围外壁与立式钢琴主体的外围外壁相连,发音箱的右端中间内侧嵌入连接有导音板,导音板的左侧外围外壁与发音箱的右端中间内侧内壁相连,导音板的右端搭接相连有修音板,修音板,起到对经过导音板发出音频进行二次修整过滤的作用,达到声音优化去噪的效果,便于使用者调节使用,碳纤维布,其本身具有较高的稳定性与韧性,能够达到修调稳定音频和延长发声频率的效果,肋木,能够避免导音板在使用时产生较大频率震动导其出声混杂,影响钢琴弹奏音质,在未来具有广泛的发展前景。(The invention belongs to the technical field of musical instruments, and particularly discloses a sound guide device of an upright piano, which comprises an upright piano main body, a sound guide plate and a sound modifying plate, wherein a sound emitting box is fixedly connected at the right end of the upright piano main body, the peripheral outer wall of the sound emitting box is connected with the peripheral outer wall of the upright piano main body, the sound guide plate is embedded and connected at the inner side in the middle of the right end of the sound emitting box, the peripheral outer wall at the left side of the sound guide plate is connected with the inner wall in the middle of the right end of the sound emitting box, the sound modifying plate is connected at the right end of the sound guide plate in a lap joint manner, the sound modifying plate plays a role in carrying out secondary finishing and filtering on audio emitted by the sound guide plate, the effect of sound optimization and noise removal is achieved, a user can conveniently adjust and use the carbon fiber cloth has higher stability and toughness, the effects of stabilizing the audio, influence the piano performance tone quality, have extensive development prospect in the future.)

1. The utility model provides a lead sound device of upright piano, includes upright piano main part (1), leads sound board (6) and abatvoix (7), its characterized in that: the piano key board is characterized in that a piano key board (3) is fixedly connected in the middle of the left end of the upright piano main body (1), the right peripheral outer wall of the piano key board (3) is connected with the left peripheral outer wall of the upright piano main body (1), a cover plate (2) is movably connected to the top end of the piano key board (3), the bottom peripheral outer wall of the cover plate (2) is connected with the top peripheral outer wall of the piano key board (3), a base (4) is fixedly connected to the bottom end of the upright piano main body (1), the top right peripheral outer wall of the base (4) is connected with the bottom peripheral outer wall of the upright piano main body (1), a sounding box (5) is fixedly connected to the right end of the upright piano main body (1), the peripheral outer wall of the sounding box (5) is connected with the peripheral outer wall of the upright piano main body (1), and a sound guide plate (6) is embedded and connected to, the outer wall of the periphery of the left side of the sound guide plate (6) is connected with the inner wall of the middle inner side of the right end of the sound emitting box (5), the right end of the sound guide plate (6) is connected with a sound modifying plate (7) in a lap joint mode, and the outer wall of the periphery of the left end of the sound modifying plate (7) is connected with the outer wall of the periphery of the right end of the sound guide plate (6) in a lap joint mode;

the periphery of the sound guide plate (6) is fixedly connected with a plate frame (601), the inner side wall of the plate frame (601) is connected with the peripheral outer wall of the sound guide plate (6), the inner sides of the two sides of the front surface of the plate frame (601) are embedded and connected with sliding grooves (602), the peripheral outer walls of the sliding grooves (602) are connected with the inner walls of the inner sides of the two sides of the front surface of the plate frame (601), the two ends of the middle of the inner side of the plate frame (601) are fixedly connected with a handle bolt (603), the peripheral outer walls of the two ends of the handle bolt (603) are connected with the inner walls of the two ends of the middle of the inner side of the plate frame (601), the front end of the inner side of the plate frame (601) is fixedly connected with a plurality of sound posts (604), the outer walls of the peripheries of the two ends of the sound post (604) are connected with the inner wall of the front end of the inner side of the plate frame (601), a soundboard static angle (606) is fixedly connected to the upper right corner of the front face of the soundboard (6), the peripheral outer wall of the soundboard static angle (606) is connected with the peripheral outer wall of the upper right corner of the sound guide board (6);

a plurality of telescopic clamping heads (608) are embedded and connected to two sides of the back of the sound guide plate (6), the peripheral outer wall of one side of each telescopic clamping head (608) is connected with the inner walls of the inner sides of two sides of the back of the sound guide plate (6), a sound absorption plate (609) is fixedly connected to the inner side of the middle of the sound guide plate (6), and the peripheral outer wall of the sound absorption plate (609) is connected with the inner wall of the middle of the sound guide plate (6);

two ends of the sound-modifying plate (7) are movably connected with end shafts (701), the peripheral outer walls of the end shafts (701) are connected with the peripheral outer walls of the two ends of the sound-modifying plate (7), the top periphery of the sound-modifying plate (7) is fixedly connected with an upper plate frame (704), the inner side wall of the upper plate frame (704) is connected with the top peripheral outer wall of the sound-modifying plate (7), the periphery of the bottom of the sound-modifying plate (7) is fixedly connected with a lower plate frame (705), the inner side wall of the lower plate frame (705) is connected with the outer wall of the periphery of the bottom of the sound-modifying plate (7), the middle of the sound-modifying plate (7) is movably connected with a center shaft (708), the peripheral outer wall of the center shaft (708) is connected with the middle peripheral outer wall of the sound-modifying plate (7) in an overlapping manner, the left end and two sides of the middle shaft (708) are fixedly connected with telescopic columns (706), and the outer peripheral walls of the right end of the telescopic columns (706) are connected with the outer peripheral walls of the left end and two sides of the middle shaft (708).

2. A sound guide apparatus of an upright piano as claimed in claim 1, wherein: the sound guide plate is characterized in that a plurality of ribs (605) are fixedly connected to the middle of the inner side of the sound guide plate (6), and the outer walls of the peripheries of the two ends of each rib (605) are connected with the inner wall of the middle of the inner side of the sound guide plate (6).

3. A sound guide apparatus of an upright piano as claimed in claim 1, wherein: the outer periphery of the rear end of the sound guide plate (6) is fixedly connected with an installation sleeve frame (607), and the outer peripheral wall of the front end of the installation sleeve frame (607) is connected with the outer peripheral wall of the rear end of the sound guide plate (6).

4. A sound guide apparatus of an upright piano as claimed in claim 1, wherein: the middle of the front face of the end shaft (701) is connected with an adjusting pulley (702) in an embedded mode, and the outer peripheral wall of the back face of the adjusting pulley (702) is connected with the inner side wall of the middle of the front face of the end shaft (701).

5. A sound guide apparatus of an upright piano as claimed in claim 1, wherein: the middle periphery of the telescopic column (706) is movably connected with a telescopic adjusting shaft (707), and the inner side wall of the telescopic adjusting shaft (707) is connected with the middle peripheral outer wall of the telescopic column (706) in an overlapping manner.

6. A sound guide apparatus of an upright piano as claimed in claim 1, wherein: the interior bottom fixedly connected with carbon cloth (709) of abatvoix (7), the peripheral outer wall in both ends of carbon cloth (709) links to each other with the inside bottom inner wall overlap joint of abatvoix (7).

7. A sound guide apparatus of an upright piano as claimed in claim 1, wherein: the interior top fixedly connected with metal screen cloth (7010) of abatvoix (7), the peripheral outer wall in both ends of metal screen cloth (7010) links to each other with the inside top inner wall overlap joint of abatvoix (7).

8. A sound guide apparatus of an upright piano as claimed in claim 1, wherein: the sound-absorbing board (609) is cuboid, the rectangular surface at one end of the sound-absorbing board adopts a raised wavy shape design, and the sound-absorbing board is arranged in parallel with the front peripheral installation sleeve frame (607) and the telescopic clamping heads (608) at the inner sides of the two ends of the installation sleeve frame (607) from front to back.

9. A sound guide apparatus of an upright piano as claimed in claim 1, wherein: the sound guide plate (6) is composed of a peripheral plate frame (601), sliding grooves (602) on the inner sides of the two sides in the middle of the plate frame (601), bolts (603) at the two ends in the middle of the inner side of the plate frame (601), sound columns (604) at the front end of the inner side of the plate frame (601), rib bars (605) at the rear end of the inner side of the plate frame (601), a sound plate dead angle (606) at the upper right corner of the front side, a mounting sleeve frame (607) at the rear end, telescopic clamping heads (608) on the inner sides of the two ends of the mounting sleeve frame (607) and a sound absorption plate (609.

10. A sound guide apparatus of an upright piano as claimed in claim 1, wherein: the sound-modifying plate (7) is composed of end shafts (701) at two ends, adjusting pulleys (702) on two sides of the left end of the end shaft (701), a pulley control button (703) in the middle of the front face of the end shaft (701), a top upper plate frame (704), a bottom lower plate frame (705), a middle shaft (708), telescopic columns (706) on two sides of the left end of the middle shaft (708), telescopic adjusting shafts (707) on the periphery in the middle of the telescopic columns (706), carbon fiber cloth (709) at the bottom of the interior and metal mesh cloth (7010) at the top of the interior.

Technical Field

The invention belongs to the technical field of musical instruments, and particularly relates to a sound guide device of an upright piano.

Background

A piano (italian: pianoforte) is a keyboard instrument in western classical music, and has a name of "king of instrument". It is composed of 88 keys (52 white keys, 36 black keys) and a metal string sound board. Piano was invented in 1709 by Bartolomeo Cristofori, K.K. (1655) -1731, Italy. The range of piano pitch ranges from a0(27.5Hz) to C8(4186Hz), and almost all tones in the tone system are covered, and the instrument is the instrument with the widest pitch range except for the pipe organ. The piano is commonly used for solo, repetition, accompaniment and other performances, and is very convenient for composing music and rehearsing music. The player drives a small mallet covered with a felt in the piano by pressing keys on the keyboard, and then strikes the steel wire strings to make sound. The piano needs regular care to ensure that the tone of the piano is unchanged.

At present, current upright piano abatvoix, its itself sets up one usually to installation and upright piano rear end position, and leading the abatvoix be fixed unadjustable structure, lead to the user can't adjust the piano sound production when using and repair, lead to the tone of upright piano itself production less, and sound is more miscellaneous, less sound can't satisfy the user's demand under some special environment, has certain use limitation.

Therefore, how to design a sound guide device of an upright piano becomes a problem to be solved at present.

Disclosure of Invention

The invention aims to: in order to solve the problem that a soundboard is not adjustable and has certain use limitation, a sound guide device of an upright piano is provided.

The technical scheme adopted by the invention is as follows: a sound guide device of an upright piano comprises an upright piano main body, a sound guide plate and a sound modifying plate, wherein a piano keyboard platform is fixedly connected in the middle of the left end of the upright piano main body, the outer peripheral wall of the right end of the piano keyboard platform is connected with the outer peripheral wall in the middle of the left end of the upright piano main body, a cover plate is movably connected at the top end of the piano keyboard platform, the outer peripheral wall of the bottom of the cover plate is connected with the outer peripheral wall of the top end of the piano platform, a base is fixedly connected at the bottom end of the upright piano main body, the outer peripheral wall of the top right side of the base is connected with the outer peripheral wall of the bottom end of the upright piano main body, a sound emitting box is fixedly connected at the right end of the upright piano main body, the outer peripheral wall of the sound emitting box is connected with the outer peripheral wall of the upright piano main body, the sound guide, the right end of the sound guide plate is connected with a sound modifying plate in a lap joint mode, and the peripheral outer wall of the left end of the sound modifying plate is connected with the peripheral outer wall of the right end of the sound guide plate in a lap joint mode;

the periphery of the sound guide plate is fixedly connected with a plate frame, the inner side inner wall of the plate frame is connected with the outer side outer wall of the sound guide plate, sliding grooves are embedded and connected into the inner sides of the two sides of the front surface of the plate frame, the outer side outer wall of each sliding groove is connected with the inner side inner wall of the two sides of the front surface of the plate frame, two ends of the middle of the inner side of the plate frame are fixedly connected with a handle bolt, the outer side outer walls of the two ends of each handle bolt are connected with the inner walls of the middle two ends of the inner side of the plate frame, the front ends of the plate frame are fixedly connected with a plurality of sound columns, the outer side outer walls of the two ends of each sound column are connected with the;

the sound guide plate is characterized in that a plurality of telescopic chucks are embedded and connected to two sides of the back of the sound guide plate, the peripheral outer wall of one side of each telescopic chuck is connected with the inner walls of the inner sides of the two sides of the back of the sound guide plate, the sound absorption plate is fixedly connected to the inner side of the middle of the sound guide plate, and the peripheral outer wall of the sound absorption plate is connected with the inner wall of the middle inner side of the sound;

the two ends of the sound-modifying plate are movably connected with end shafts, the peripheral outer walls of the end shafts are connected with the peripheral outer walls of the two ends of the sound-modifying plate, the top periphery of the sound-modifying plate is fixedly connected with an upper plate frame, the inner side inner wall of the upper plate frame is connected with the top peripheral outer wall of the sound-modifying plate, the bottom periphery of the sound-modifying plate is fixedly connected with a lower plate frame, the inner side inner wall of the lower plate frame is connected with the bottom peripheral outer wall of the sound-modifying plate, the middle of the sound-modifying plate is movably connected with a center shaft, the peripheral outer wall of the center shaft is connected with the middle peripheral outer wall of the sound-modifying plate in an overlapped mode, the two sides of the left end of the.

Preferably, the middle of the inner side of the sound guide plate is fixedly connected with a plurality of ribs, and the peripheral outer walls of the two ends of each rib are connected with the inner wall of the middle of the inner side of the sound guide plate.

Preferably, the periphery of the rear end of the sound guide plate is fixedly connected with an installation sleeve frame, and the peripheral outer wall of the front end of the installation sleeve frame is connected with the peripheral outer wall of the rear end of the sound guide plate.

Preferably, the middle of the front face of the end shaft is connected with an adjusting pulley in an embedded mode, and the peripheral outer wall of the rear face of the adjusting pulley is connected with the inner wall of the middle inner side of the front face of the end shaft.

Preferably, the middle periphery of the telescopic column is movably connected with a telescopic adjusting shaft, and the inner side wall of the telescopic adjusting shaft is connected with the middle peripheral outer wall of the telescopic column in an overlapping manner.

Preferably, the interior bottom fixedly connected with carbon fiber cloth of abatvoix, the peripheral outer wall in both ends of carbon fiber cloth and the inside bottom inner wall overlap joint of abatvoix link to each other.

Preferably, the inside top fixedly connected with metal screen cloth of abatvoix, the peripheral outer wall in both ends of metal screen cloth links to each other with the inside top inner wall overlap joint of abatvoix.

Preferably, the appearance of abatvoix is the cuboid, and its one end rectangular face has adopted protruding wavy appearance design, and is parallel arrangement from the front to the back with preceding outlying installation cover frame and the flexible dop of installation cover frame both ends inboard.

Preferably, the sound guide plate is composed of a peripheral plate frame, sliding grooves in the middle of the plate frame and on the inner sides of the two sides, handles at the middle two ends of the inner side of the plate frame, sound columns at the front end of the inner side of the plate frame, ribbed bars at the rear end of the inner side of the plate frame, a sound plate static angle at the right upper corner of the front side, an installation sleeve frame at the rear end, telescopic clamping heads on the inner sides of the two ends of the installation sleeve frame and a sound absorption plate on the inner.

Preferably, the sound-modifying plate consists of end shafts at two ends, adjusting pulleys on two sides of the left end of the end shaft, a pulley control button in the middle of the front surface of the end shaft, an upper plate frame on the top, a lower plate frame on the bottom, a middle shaft in the middle, telescopic columns on two sides of the left end of the middle shaft, telescopic adjusting shafts on the periphery in the middle of the telescopic columns, carbon fiber cloth on the bottom inside and metal mesh cloth on the top inside.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. in the invention, the sound-absorbing plate is designed to be a hollow plate, the hollow part of the sound-absorbing plate is called an air layer, the sound-absorbing plate is made of white pine wood, the sound-absorbing plate has a good sound-emitting effect, meanwhile, the sound frequency generated by the sounding box can be fully absorbed through the shape of the raised waves arranged on one surface of the sound-absorbing plate, and the sound vibration frequency can be effectively improved through the air layer in the middle of the sound-absorbing plate, so that the effect of improving the sound volume is achieved.

2. According to the invention, the sound modifying plate mainly plays a role in carrying out secondary modification and filtration on the audio frequency emitted by the sound guide plate, so that the effect of optimizing and denoising the sound is achieved, meanwhile, a user can adjust the use angle of the sound modifying plate according to the use requirement, the effect of changing the sound propagation direction is achieved, the audio frequency is increased, the sound modifying plate is convenient for the user to adjust and use, and the sound production quality of the vertical piano main body is improved to a certain degree.

3. According to the invention, the carbon fiber cloth is required to be known as a carbon fiber material, the carbon fiber cloth has high stability and toughness and is an optimal material for trimming the audio, then the carbon fiber cloth can trim and filter the absorbed audio, redundant noise in the audio is eliminated, stable audio output is ensured, and the high toughness can enable the audio to vibrate for a long time until the audio is weakened, so that the effect of prolonging the sound production frequency is achieved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic diagram of a front view of a part of the structure of the sound guide plate according to the present invention;

FIG. 3 is a schematic view of the rear view of the sound guiding plate of the present invention;

FIG. 4 is a schematic illustration of a portion of the construction of the acoustical panel of the present invention;

fig. 5 is a schematic diagram of a partial cross-sectional structure of the sound-modifying panel of the present invention.

The labels in the figure are: 1. the piano comprises an upright piano main body, 2, a cover plate, 3, a piano keyboard, 4, a base, 5, a sound box, 6, a sound guide plate, 601, a plate frame, 602, a sliding groove, 603, a handle bolt, 604, a sound column, 605, a rib wood, 606, a sound board dead angle, 607, an installation sleeve frame, 608, a telescopic clamping head, 609, a sound absorption plate, 7, a sound modification plate, 701, an end shaft, 702, an adjusting pulley, 703, a pulley control button, 704, an upper plate frame, 705, a lower plate frame, 706, a telescopic column, 707, a telescopic adjusting shaft, 708, a middle shaft, 709, carbon fiber cloth, 7010 and metal mesh cloth.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides a technical solution: a sound guide device of an upright piano comprises an upright piano main body 1, a sound guide plate 6 and a sound modifying plate 7, wherein the middle of the left end of the upright piano main body 1 is fixedly connected with a piano keyboard platform 3, the outer peripheral wall of the right end of the piano platform 3 is connected with the outer peripheral wall of the middle of the left end of the upright piano main body 1, the top end of the piano platform 3 is movably connected with a cover plate 2, the outer peripheral wall of the bottom part of the cover plate 2 is connected with the outer peripheral wall of the top end of the piano platform 3, the bottom end of the upright piano main body 1 is fixedly connected with a base 4, the outer peripheral wall of the right end of the base 4 is connected with the outer peripheral wall of the bottom end of the upright piano main body 1, the right end of the upright piano main body 1 is fixedly connected with a sound producing box 5, the outer peripheral wall of the sound producing box 5 is connected with the outer peripheral wall of the upright piano main body, the right end of the sound guide plate 6 is connected with a sound modifying plate 7 in an overlapping mode, and the outer peripheral wall of the left end of the sound modifying plate 7 is connected with the outer peripheral wall of the right end of the sound guide plate 6 in an overlapping mode;

a plate frame 601 is fixedly connected to the periphery of the sound guide plate 6, the inner side inner wall of the plate frame 601 is connected with the outer side outer wall of the sound guide plate 6, sliding grooves 602 are embedded and connected to the inner sides of the two sides of the front face of the plate frame 601, the outer side outer wall of the sliding grooves 602 is connected with the inner side inner walls of the two sides of the front face of the plate frame 601, two ends of the middle of the inner side of the plate frame 601 are fixedly connected with a bolt 603, the outer side outer walls of the two ends of the bolt 603 are connected with the inner walls of the two ends of the middle of the inner side of the plate frame 601, a plurality of sound columns 604 are fixedly connected to the front end inner wall of the inner side of the plate frame 601, a sound plate mute corner 606 is fixedly connected to the upper;

a plurality of telescopic clamping heads 608 are embedded and connected to two sides of the back of the sound guide plate 6, the peripheral outer wall of one side of each telescopic clamping head 608 is connected with the inner walls of the two sides of the back of the sound guide plate 6, a sound absorption plate 609 is fixedly connected to the inner side of the middle of the sound guide plate 6, and the peripheral outer wall of the sound absorption plate 609 is connected with the inner wall of the middle of the sound guide plate 6;

the two ends of the sound-modifying plate 7 are movably connected with end shafts 701, the peripheral outer walls of the end shafts 701 are connected with the peripheral outer walls of the two ends of the sound-modifying plate 7, the top periphery of the sound-modifying plate 7 is fixedly connected with an upper plate frame 704, the inner side wall of the upper plate frame 704 is connected with the top peripheral outer wall of the sound-modifying plate 7, the bottom periphery of the sound-modifying plate 7 is fixedly connected with a lower plate frame 705, the inner side wall of the lower plate frame 705 is connected with the bottom peripheral outer wall of the sound-modifying plate 7, the middle of the sound-modifying plate 7 is movably connected with a middle shaft 708, the peripheral outer wall of the middle shaft 708 is connected with the middle peripheral outer wall of the sound-modifying plate 7 in an overlapping mode, telescopic columns 706 are fixedly.

Preferably, many ribs 605 of fixedly connected with in the middle of the inboard of leading soundboard 6, the peripheral outer wall in both ends of rib 605 links to each other with the inboard middle inner wall of leading soundboard 6, at first we need know that rib 605 in the middle of leading soundboard 6 is provided with twelve altogether, and through rib 605, can evenly absorb the conduction once more with the audio frequency that soundboard 6 absorbs, reach the effect of filtering the noise, can play the effect of the flat compound soundboard 6 vibration frequency of own simultaneously, make the sound that its transmission was derived clear, avoid soundboard 6 to produce great frequency vibrations when using and lead its sound to mix, influence piano playing tone quality.

Preferably, the peripheral fixedly connected with installation cover frame 607 in rear end of leading soundboard 6, the peripheral outer wall in front end of installation cover frame 607 links to each other with the peripheral outer wall in rear end of leading soundboard 6, flexible dop 608 through the inboard setting in installation cover frame 607 both ends, can the person of facilitating the use carry out mutual concatenation installation work with the soundboard mounting groove of leading soundboard 6 and pronunciation case 5 right-hand member inboard, the user only needs to lead soundboard 6, put into its soundboard mounting groove with it and push it into through the installation cover frame 607 of its rear end, through the flexible dop 608 of its both ends setting when pushing, can push into soundboard 6 when the user pushes mutually with the soundboard mounting groove, make in its income installation cover frame 607, later can directly pop out and carry out the joint rather than after flexible dop 608 reachs soundboard mounting groove inside bayonet hole department, reach quick installation effect, the person of facilitating the use installation work.

Preferably, the middle of the front of the end shaft 701 is embedded with an adjusting pulley 702, the peripheral outer wall of the back of the adjusting pulley 702 is connected with the inner wall of the middle of the front of the end shaft 701, through the adjusting pulley 702, a user can adjust the sound modifying plate 7 at the right end of the sound guide plate 6 conveniently, and the adjusting pulley can be matched with the telescopic column 706 to support the angle of the sound modifying plate 7, such as the angle adjustment in the specification and the attached drawing 4, the user can press the pulley control button 703 on the end shaft 701 to drive the buckle on the inner side of the end shaft 701 to be unfolded outwards, so as to fix the end shaft 701, so as to fix the sound modifying plate 7 after the angle adjustment, and then through the adjusted sound modifying plate 7, the sound transmission direction of the sound guide plate 6 can be effectively changed, the sound transmission frequency can be improved, the effect of changing the sound size can be achieved.

Preferably, the middle periphery of the telescopic column 706 is movably connected with a telescopic adjusting shaft 707, the inner side inner wall of the telescopic adjusting shaft 707 is connected with the middle periphery outer wall of the telescopic column 706 in an overlapping manner, firstly, the telescopic column 706 is of a fixed installation structure, when a user adjusts the acoustic panel 7 to lift the angle, the telescopic column 706 can lift the angle to support and position the angle, and meanwhile, after the user stretches the telescopic column 706 to a specified length, the telescopic adjusting shaft 707 for feeding in the middle of the telescopic column 706 can be rotated, so that the adjusting shaft 707 drives the fastening ring on the inner side of the adjusting shaft 707 to extrude inwards, the effect of fixing the telescopic column 706 is achieved, the support stability is ensured, and the stable use of the acoustic panel 7 is ensured.

Preferably, the inside bottom fixedly connected with carbon cloth 709 of abatvoix 7, the peripheral outer wall in both ends of carbon cloth 709 links to each other with the inside bottom inner wall overlap joint of abatvoix 7, at first we need know carbon fiber material, it itself has higher stability and toughness, be the best material of repairing the audio frequency, later can repair the filtration to the audio frequency after absorbing through carbon fiber cloth 709 itself, get rid of unnecessary noise in the audio frequency, ensure that every audio frequency that passes carbon fiber cloth 709 can stabilize on same corresponding frequency again, reach the effect of repairing the accent, and high-strength toughness can make audio frequency itself shake for a long time until weakening, reach the effect of extension vocal frequency.

Preferably, the inside top fixedly connected with metal screen cloth 7010 of abatvoix 7, the peripheral outer wall in both ends of metal screen cloth 7010 links to each other with the inside top inner wall overlap joint of abatvoix 7, through metal screen cloth 7010, it mainly plays cooperation and supplementary carbon cloth 709 to carry out the effect of filtering the repair to the audio frequency itself, metal material in the accessible metal screen cloth 7010 simultaneously, can be when its itself produces the vibration, send the metal of happy ear and shake the sound, reach the effect that promotes tone quality and strengthen the sound production dynamics, thereby effectively improve piano sound production volume itself, convenient to use person uses.

Preferably, the sound-absorbing panel 609 is a cuboid, and a rectangular surface at one end of the sound-absorbing panel 609 is designed in a raised wave shape, and is arranged in parallel with the mounting sleeve frame 607 on the periphery of the front and the telescopic clamping heads 608 on the inner sides of the two ends of the mounting sleeve frame 607 from front to back, firstly, the sound-absorbing panel 609 is designed in a hollow plate, and the hollow part of the sound-absorbing panel 609 is called an air layer (not shown in the structure diagram), the sound-absorbing panel 609 is made of white pine and has a good sound-producing effect, meanwhile, the raised wave shape arranged on one surface of the sound-absorbing panel can fully absorb audio generated by the sound box 5, the sound vibration frequency can be effectively improved through the air layer in the middle of the sound-absorbing panel 609, the sound is increased in volume, and finally, the sound is emitted through the sound panel on the other surface of the sound-absorbing panel 609, so that the sound is transmitted to.

Preferably, the sound guide plate 6 is composed of a peripheral plate frame 601, sliding grooves 602 on the inner sides of the two sides of the middle of the plate frame 601, handles 603 on the two ends of the middle of the inner side of the plate frame 601, sound columns 604 on the front end of the inner side of the plate frame 601, ribs 605 on the rear end of the inner side of the plate frame 601, a sound board dead angle 606 on the upper right corner of the front side, a mounting sleeve frame 607 on the rear end, telescopic chucks 608 on the inner sides of the two ends of the mounting sleeve frame 607 and a sound absorption board 609 on the inner side of the middle, firstly, the sound absorption board 609 is designed to be a hollow plate, and the hollow part inside, the sound-absorbing board 609 is made of white pine wood, so that the sound-absorbing board has a good sound-emitting effect, and then a user can hold the bolt 603 by hands, through the flexible dop 608 that the inboard setting in installation cover frame 607 both ends, carry out the installation work of splicing each other with drain board 6 and pronunciation case 5, later through the stall bar 605 and the sound column 604 that set up, can reach the effect of preliminary optimization amplification pronunciation case 5 sound frequency.

Preferably, the sound-modifying plate 7 is composed of end shafts 701 at two ends, adjusting pulleys 702 on two sides of the left end of the end shaft 701, a pulley control button 703 in the middle of the front surface of the end shaft 701, a top upper plate frame 704, a bottom lower plate frame 705, a middle shaft 708, telescopic columns 706 on two sides of the left end of the middle shaft 708, telescopic adjusting shafts 707 on the periphery of the middle of the telescopic columns 706, carbon fiber cloth 709 at the bottom inside and metal mesh cloth 7010 at the top inside, and the sound-modifying plate 7 mainly plays a role in carrying out secondary finishing and filtering on audio emitted through the sound guide plate 6, so that the sound optimization and noise removal effects are achieved, and meanwhile, a user can adjust the use angle of the sound-modifying plate 7 according to use requirements, so that the effect of changing the sound propagation direction is achieved, the audio is increased, the adjustment and the use are facilitated by the user.

The working principle is as follows: firstly, we need to know that the sound-absorbing board 609 is designed by a hollow board, the hollow part in the sound-absorbing board 609 is called an air layer (not shown in a structure diagram), the sound-absorbing board 609 is made of white pine wood and has a good sound-emitting effect, meanwhile, the sound generated by the sound box 5 can be fully absorbed by the shape of the raised waves arranged on one surface of the sound-absorbing board, the vibration frequency of sound can be effectively improved by the air layer in the middle of the sound-absorbing board, so that the effect of improving the sound volume is achieved, finally, the sound is emitted by the sound board on the other surface of the sound-absorbing board 609, so that the sound is transmitted to the rib wood 605 and the sound column 604, the sound is processed and emitted, and meanwhile, twelve rib wood 605 in the middle of the sound-guiding board 6 are arranged, the sound absorbed and transmitted by the rib wood 605, so that the effect of filtering the noise can be achieved, and the effect of smoothing the vibration frequency of, the sound transmitted by the sound guide plate is clear, and the sound guide plate 6 is prevented from generating high-frequency vibration during use to lead the sound to be mixed, so that the piano playing tone quality is not influenced;

then, through the telescopic chucks 608 arranged at the inner sides of the two ends of the installation sleeve frame 607, a user can conveniently splice and install the sound guide plate 6 and the sound plate installation groove at the inner side of the right end of the sounding box 5, the user only needs to put the sound guide plate 6 into the sound plate installation groove through the installation sleeve frame 607 at the rear end of the sound guide plate and push the sound guide plate into the sound plate installation groove, and the user can extrude the sound guide plate 6 into the sound plate installation groove through the telescopic chucks 608 arranged at the two ends of the sound guide plate when pushing the sound guide plate into the user, so that the sound guide plate is taken into the installation sleeve frame 607, and then the telescopic chucks 608 can be directly popped out to be clamped with the sound plate installation groove after reaching the;

then, through the sound-modifying board 7, it mainly plays a role of secondary trimming and filtering the sound emitted by the sound-guiding board 6, so as to achieve the effect of sound optimization noise removal, and at the same time, the user can also adjust the use angle of the sound-modifying board 7 according to the use requirement, so as to achieve the effect of changing the sound propagation direction and simultaneously increasing the sound frequency, so as to facilitate the adjustment and use of the user, so as to improve the sound-producing quality of the upright piano body 1 to a certain extent, and then through the adjusting wheel 702, the user can adjust the sound-modifying board 7 at the right end of the sound-guiding board 6 conveniently, and the telescopic column 706 is matched to achieve the effect of supporting the angle of the sound-modifying board 7, as shown in the angle adjustment in the specification and attached figure 4, the user can drive the buckle on the inner side of the end shaft 701 to expand outwards by pressing the pulley control button 703 on the end shaft 701, then, by means of the adjusted sound-modifying board 7, the sound transmission direction conducted by the sound-guiding board 6 can be effectively changed, the sound transmission frequency is improved, the effect of changing the sound size is achieved, and the user can conveniently adjust and use the sound-modifying board, then, the telescopic column 706 is of a fixed installation structure, when the user adjusts the angle of the sound-modifying board 7 to lift the angle, the lifting angle can be supported and positioned through the telescopic column 706, and meanwhile, after the user elongates the telescopic column 706 to a specified length, the telescopic adjusting shaft 707 for feeding in the middle of the telescopic column 706 can be rotated, so that the adjusting shaft 707 drives the fastening ring on the inner side of the telescopic column 707 to extrude inwards, the effect of fixing the telescopic column 706 is achieved, the support stability of the sound-modifying board is ensured, and the use stability of;

next, the sound modifying plate 7 mainly plays a role in carrying out secondary finishing and filtering on the audio frequency emitted by the sound guide plate 6, so that the sound optimizing and denoising effect is achieved, meanwhile, a user can adjust the use angle of the sound modifying plate 7 according to the use requirement, the effect of changing the sound propagation direction is achieved, the audio frequency is increased, the adjustment and use by the user are facilitated, and the sound production quality of the vertical piano main body 1 is improved to a certain extent;

finally, we need to know that the carbon fiber material has high stability and toughness, and is the best material for trimming the audio frequency, and then the carbon fiber cloth 709 can trim and filter the absorbed audio frequency by itself, so as to eliminate redundant noise in the audio frequency, ensure that each audio frequency passing through the carbon fiber cloth 709 can be stabilized at the same corresponding frequency, and achieve the trimming effect, and the high toughness can enable the audio frequency to vibrate for a long time until the audio frequency is weakened, so as to achieve the effect of prolonging the sound production frequency, and through the metal mesh 7010, the carbon fiber cloth 709 mainly plays the role of matching and assisting the carbon fiber cloth 709 in filtering and trimming the audio frequency, and simultaneously through the metal material in the metal mesh 7010, the carbon fiber cloth can emit pleasant metal ringing sound when the carbon fiber cloth vibrates, so as to achieve the effect of improving the sound production strength, thereby effectively improving the sound production volume of the piano itself, the sound guide device is convenient for users to use, and the working principle of the sound guide device of the upright piano is that.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.