阅读说明：本技术 一种新型拇指琴 (Novel thumb musical instrument ) 是由 罗有航 周晓莺 王月磊 于 2020-12-21 设计创作，主要内容包括：本发明公开了一种新型拇指琴,此拇指琴将发音琴片安装在膜结构或鼓皮上,包括琴身整体和固定在琴身整体上的琴支架,琴支架上安装有用于弹奏音乐的弹片；所述的琴身整体包括设置在顶面的鼓皮,以及固定在鼓皮的下侧用于撑起鼓皮的总支撑；所述的鼓皮与总支撑封闭式固定连接,形成一个开口向下的音腔。本发明中鼓皮的设置,使得弹奏者用拇指在弹奏弹片,让弹片产生振动时,弹片的振动带动底板和鼓皮同时振动,能让拇指琴发出的声音浑厚,悦耳且更加的响；再者,将拇指琴拿在手上弹奏时,鼓皮与总支撑之间形成的音腔,会使得鼓皮在振动时产生的声波碰到音腔的内壁后再折回到空气中,让声波在音腔内进行回转,形成模拟回音状态；使得拇指琴发出的声音更加的空灵、醇厚,更加的悦耳动听。(The invention discloses a novel thumb piano, wherein a sounding piano piece is arranged on a membrane structure or a drum head of the thumb piano, the thumb piano comprises a whole piano body and a piano bracket fixed on the whole piano body, and a shrapnel for playing music is arranged on the piano bracket; the whole body comprises a drum head arranged on the top surface and a general support fixed on the lower side of the drum head and used for supporting the drum head; the drum head is fixedly connected with the general support in a closed manner to form a sound cavity with a downward opening. According to the drum head, the drum head is arranged, so that a player plays the elastic sheet by using a thumb, when the elastic sheet vibrates, the vibration of the elastic sheet drives the bottom plate and the drum head to vibrate simultaneously, and the sound emitted by the thumb piano is thick, pleasant and louder; moreover, when the thumb piano is held in the hand for playing, the sound cavity formed between the drum head and the main support can lead the sound wave generated by the drum head during vibration to be folded back to the air after touching the inner wall of the sound cavity, and lead the sound wave to rotate in the sound cavity to form a simulated echo state; the sound emitted by the thumb piano is more vivid, mellow and more pleasant.)

1. A novel thumb piano comprises a whole piano body and a piano bracket fixed on the whole piano body, wherein a shrapnel (7) for playing music is arranged on the piano bracket; the method is characterized in that: the whole body comprises a drum head (1) arranged on the top surface and a general support which is fixed on the lower side of the drum head (1) and used for supporting the drum head (1); the drum head (1) is fixedly connected with the general support in a closed manner to form a sound cavity with a downward opening; the musical instrument support is fixed in the middle of the drum head (1).

2. The novel thumb piano of claim 1, characterized in that: the general support comprises an upper support (21) and a lower support (22), and the upper support (21) and the lower support (22) are in adjustable fixed connection.

3. The novel thumb piano of claim 2, characterized in that: the edge of the drum head (1) is fixed on the outer side wall of the lower support (22), and a gap is formed between the drum head (1) and the outer side wall of the upper support (21).

4. The novel thumb piano of claim 2, characterized in that: a round corner (213) is arranged between the top surface of the upper support (21) and the outer wall (211).

5. The novel thumb piano of claim 2, characterized in that: the outer diameter of the upper support (21) is slightly smaller than that of the lower support (22); a groove (214) is arranged on the top surface of the upper support (21), and the groove (214) is arranged from the middle part of the upper support (21) to the inner wall (212) of the upper support (21).

6. The novel thumb piano of claim 5, characterized in that: the outer diameter of the upper support (21) is 0.1-2mm smaller than that of the lower support (22); the depth of the inner wall of the groove (214) is 0.5-3 mm.

7. The novel thumb piano of claims 2-5, wherein: the upper support (21) is provided with a plurality of fixing holes (221) for fixing, the fixing holes (221) are located at positions corresponding to the fixing holes, and the lower support (22) is provided with a through fixing through hole; adjusting holes (222) for adjusting the gap between the upper support (21) and the lower support (22) are uniformly distributed among the fixing through holes; the inner walls of the fixing hole (221) and the adjusting hole (222) are provided with internal threads.

8. The novel thumb piano of claim 1, characterized in that: the musical instrument support including fixing bottom plate (3) at drum head (1) top surface to and install at preceding musical instrument pillow (4), back musical instrument pillow (5) and musical instrument sign indicating number (6) of bottom plate (3) top surface, shell fragment (7) install in the front between musical instrument pillow (4), back musical instrument pillow (5) and musical instrument sign indicating number (6).

9. The novel thumb piano of claim 8, wherein: the top surface of the bottom plate (3) is provided with a limiting groove (31) for limiting the front piano pillow (4) and the rear piano pillow (5) at the positions of the front piano pillow (4) and the rear piano pillow (5); the bridge (6) is provided with a mounting hole (32) at the mounting position of the bridge (6), and the bridge (6) is fixed on the bottom plate (3) through a fastener.

10. The novel thumb piano of claim 8 or 9, wherein: the bottom surface of the drum head (1) is provided with a fixing plate (8) which is matched and fixed with the bottom plate (3), and the fixing plate (8) is provided with a positioning hole (81); the fastener penetrates through the bridge (6), the bottom plate (3) and the drum head (1) and is fixedly connected with the positioning hole (81) in the fixing plate (8).

Technical Field

The invention relates to the technical field of thumb harps, in particular to a novel thumb harp.

Background

The thumb piano is a musical instrument from Africa, and different names such as Mbrira, Kalimba, Thumbpiano and Likembe are called in different regions of Africa. The thumb piano has the characteristics of small volume, easy learning and entry, simple operation and the like, is popular with some music enthusiasts all over the world, and forms a large-scale market in the world.

The thumb piano generally comprises a piano body, 1-2 rows of metal spring plates and a piano support, the piano support comprises a front piano pillow, a rear piano pillow and a piano code, the spring plates are arranged on the front piano pillow and the rear piano pillow, and the piano code between the two piano pillows downwards presses the spring plates to enable the spring plates to be in a certain tension degree.

The elastic pieces are pressed down by the thumbs of the two hands and then released, and the sound is generated through vibration, so that the karaoke music box is mainly used for karaoke. The elastic pieces of the existing thumb piano are directly fixed on the solid wood board, the tone quality played by the thumb piano with the structure is clear, and the muddy tone quality cannot be generated.

Disclosure of Invention

Aiming at the technical problem, the technical scheme provides the novel thumb piano which can effectively solve the problem.

The invention is realized by the following technical scheme:

a novel thumb piano is characterized in that a sounding piano piece is arranged on a membrane structure or a drum head, and comprises a whole piano body and a piano support fixed on the whole piano body, wherein a spring piece for playing music is arranged on the piano support; the whole body comprises a drum head arranged on the top surface and a general support fixed on the lower side of the drum head and used for supporting the drum head; the drum head is fixedly connected with the general support in a closed manner to form a sound cavity with a downward opening; the musical instrument support is fixed in the middle of the drum head.

Furthermore, the general support comprises an upper support and a lower support, and the upper support and the lower support are fixedly connected in an adjustable manner.

Furthermore, the edge of the drum head is fixed on the outer side wall of the lower support, and a gap is formed between the drum head and the outer side wall of the upper support.

Furthermore, a round angle is arranged between the top surface of the upper support and the outer wall of the upper support.

Further, the outer diameter of the upper support is slightly smaller than that of the lower support; the top surface of the upper support is provided with a groove, and the groove extends from the middle part of the upper support to the inner wall of the upper support.

Further, the outer diameter of the upper support is 0.1-2mm smaller than that of the lower support; the depth of the inner wall of the groove is 0.5-3 mm.

Furthermore, a plurality of fixing holes for fixing are formed in the upper support and located at positions corresponding to the fixing holes, and through holes are formed in the lower support; adjusting holes for adjusting the gap between the upper support and the lower support are uniformly distributed among the through holes; the inner walls of the fixing hole and the adjusting hole are provided with internal threads.

Further, the musical instrument support including fixing the bottom plate at the drum head top surface to and install preceding musical instrument pillow, back musical instrument pillow and the musical instrument sign indicating number at the bottom plate top surface, the shell fragment install before musical instrument pillow, back musical instrument pillow and between the musical instrument sign indicating number.

Furthermore, the top surface of the bottom plate is provided with limiting grooves for limiting the front piano pillow and the rear piano pillow at the positions of the front piano pillow and the rear piano pillow; the bridge is provided with a mounting hole at the mounting position and fixed on the bottom plate through a fastener.

Further, a fixing plate matched and fixed with the bottom plate is arranged on the bottom surface of the drum head, and a positioning hole is formed in the fixing plate; the fastener penetrates through the bridge, the bottom plate and the drum head and is fixedly connected with the positioning hole in the fixing plate.

Advantageous effects

Compared with the prior art, the novel thumb piano provided by the invention has the following beneficial effects:

(1) according to the technical scheme, the drum head is arranged, so that a player plays the elastic sheet with a thumb, when the elastic sheet vibrates, the vibration of the elastic sheet drives the bottom plate and the drum head to vibrate simultaneously, and the sound emitted by the thumb piano is thick and louder; moreover, when the thumb piano is held in the hand for playing, the sound cavity formed between the drum head and the main support can lead the sound wave generated by the drum head during vibration to be folded back to the air after touching the inner wall of the sound cavity, and lead the sound wave to rotate in the sound cavity to form a simulated echo state; the sound emitted by the thumb piano is more vivid, mellow and more pleasant.

(2) In the technical scheme, the total support is set into an upper support and a lower support which are fixedly connected in an adjustable mode, because of the principle of expansion with heat and contraction with cold, the drum head has different relaxation degrees in cold and hot environments; in order for a player to seek a thumb piano to produce a more pleasant sound, the relaxation of the drum head needs to be adjusted. And the adjustable upper support and the adjustable lower support which are fixedly connected can meet the requirements of players.

(3) When the upper support and the lower support are adjusted, the fastening piece in the fixing hole between the upper support and the lower support can be unscrewed or detached, and the depth of the fastening piece in the adjusting hole is adjusted by using a tool; the top surface of the tail end of the fastener in the adjusting hole is abutted against the bottom surface of the upper support, and when the fastener in the adjusting hole is deeper, the upper support is jacked up so as to adjust the gap between the upper support and the lower support; thereby achieving the purpose of adjusting the tension and relaxation of the drum skin.

(4) In the technical scheme, the outer diameter of the upper support is slightly smaller than that of the lower support, and the groove on the top surface of the upper support is designed to more conveniently adjust the tension of the drum skin; the round angle arranged between the top surface of the upper support and the outer wall can reduce the friction of the drum head and protect the drum head when the relaxation degree of the drum head is adjusted. In addition, due to the design of the grooves on the top surface of the upper support, the hollow area of the drum head can be increased while the upper support strength is ensured; namely, the area of the drum head capable of adjusting the relaxation degree is increased, and the vibration amplitude of the drum head is further changed, so that the tone quality of the thumb piano is further effectively improved.

(5) The design of the limiting groove on the top surface of the base plate in the technical scheme can play a role of the limiting groove on the piano pillow; meanwhile, when a production worker installs the nut, the nut can be prevented from rolling and shifting, the nut can be more conveniently limited, and the elastic sheet can be more conveniently installed; the production efficiency is increased.

(6) The setting of fixed plate among this technical scheme can play further fixed action to the bottom plate on the drum head for the bottom plate is fixed more firmly. In addition, the fastener runs through musical instrument sign indicating number, bottom plate and drum head, with the fixed setting of locating hole connection on the fixed plate, the part of multiplicable thumb musical instrument has also reduced the installation step of thumb musical instrument simultaneously, further increase production efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a top view of the present invention.

FIG. 3 is a bottom view of the present invention

Fig. 4 is a schematic cross-sectional view of the overall support of the present invention.

Fig. 5 is a top view of the base plate of the present invention.

Fig. 6 is a plan view of a fixing plate according to the present invention.

Fig. 7 is a schematic cross-sectional view of a base plate and a fixing plate according to the present invention.

The labels in the figures are: 1-drum head, 2-main support, 21-upper support, 211-outer wall, 212-inner wall, 213-fillet, 214-groove, 22-lower support, 221-fixing hole, 222-adjusting hole, 3-bottom plate, 31-limiting groove, 32-mounting hole, 4-front piano pillow, 5-rear piano pillow, 6-piano code, 7-elastic sheet, 8-fixing plate and 81-positioning hole.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The described embodiments are only some embodiments of the invention, not all embodiments. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and all of them should fall into the protection scope of the present invention.

Example 1:

as shown in fig. 1-3, the novel thumb piano is characterized in that a sounding sheet is mounted on a membrane structure or a drum head, the novel thumb piano comprises a whole piano body and a piano support fixed on the whole piano body, and a shrapnel 7 for playing music is mounted on the piano support.

The whole body comprises a drum head 1 arranged on the top surface and a general support 2 fixed on the lower side of the drum head 1 and used for supporting the drum head 1; in this embodiment, the overall support 2 is an oval frame, and a through hole is formed in the middle of the overall support; the drum head is fixedly connected with the top of the general support 2 in a closed manner to form a sound cavity with a downward opening.

The general support 2 comprises an upper support 21 and a lower support 22, and the upper support 21 and the lower support 22 are in adjustable fixed connection. The bottom surface of the upper support 21 is provided with 4 fixing holes 221 for fixing, which are respectively arranged at the positions of the right opposite angles, and the inner wall of the fixing hole 221 is provided with internal threads; and a through fixing through hole is arranged on the lower support 22 at the position corresponding to the fixing hole 221. The fastening screw penetrates through the fixing through hole and then is fixed with the fixing hole.

A plurality of adjusting holes 222 for adjusting the gap between the upper support 21 and the lower support 22 are uniformly distributed on the lower support 22 and between the fixing through holes; the inner wall of the adjustment hole 222 is provided with an internal thread. The uniform distribution adjusting holes 222 are provided to make the gap between the upper support 21 and the lower support 22 uniform, so that the drum head 1 can be uniformly distributed.

When the upper support 21 and the lower support 22 are adjusted, the fastener in the fixing hole 221 between the upper support 21 and the lower support 22 can be unscrewed or detached, and the depth of the fastener in the adjusting hole 222 can be adjusted by using a tool; a fastening screw in the adjusting hole 222, wherein the top surface of the end of the fastening screw abuts against the bottom surface of the upper support 21, and when the fastening member in the adjusting hole is deeper, the upper support 21 is jacked up, so as to adjust the gap between the upper support 21 and the lower support 22; thereby achieving the purpose of adjusting the tension of the drum head 1.

The outer diameter of the upper support 21 is slightly smaller than that of the lower support 22, and the outer diameter of the upper support 21 is 0.1-2mm smaller than that of the lower support 22. The edge of the drum head 1 is fixed on the outer side wall of the lower support 22 by gluing, and a gap is formed between the drum head 1 and the outer side wall of the upper support 21. A groove 214 is arranged on the top surface of the upper support 21, the groove 214 extends from the middle part of the upper support 21 to the inner wall of the upper support 21, and the depth of the inner wall of the groove 214 is 0.5-3 mm. The contact area between the upper support 214 and the drum head 1 can be reduced, and when the relaxation degree of the drum head 1 is adjusted, the friction force between the drum head 1 and the upper support 21 can be effectively reduced, so that a player can use small force to complete the adjustment of the relaxation degree when adjusting, and the adjustment operation of the drum head relaxation degree can be more conveniently completed.

A rounded corner 213 is provided between the top surface of the upper support 21 and the outer wall 211. The setting of fillet 213 for more mellow and smooth between the top surface of upper support 21 and the outer wall, when the relaxation degree of adjustment drum head 1, drum head 1 is when shifting, and fillet 213 can reduce the degree of injury to drum head 1, plays the guard action to drum head 1.

The drum head 1 is fixed on the top surface of the main support 2, and the musical instrument support is fixed in the middle of the drum head 1. In order to facilitate a user to more comfortably grasp the thumb piano and play the same, the piano bracket is fixed at the position which is slightly higher than the middle of the drum head 1.

The musical instrument support comprises a bottom plate 3 fixed on the top surface of the drum head 1, a front musical instrument pillow 4, a rear musical instrument pillow 5 and a musical instrument code 6 which are arranged on the top surface of the bottom plate 3; the spring plate 7 is arranged between the front nut 4, the rear nut 5 and the bridge 6.

A limiting groove 31 for limiting and fixing the front nut 4 and the rear nut 5 is arranged on the top surface of the bottom plate 3 and at the positions of the front nut 4 and the rear nut 5; the bridge 6 is provided with a mounting hole 32 at a mounting position thereof, and the bridge 6 is fixed to the base plate 3 by a fastener. The design of the limiting groove 31 and the mounting hole 32 can limit the piano pillow and the piano bridge 6; meanwhile, the position for installing the piano pillow and the piano code is conveniently and quickly found by a production worker, and the accuracy is improved. In addition, due to the design of the limiting groove, an assembler can directly place the nut in the limiting groove when installing the nut, so that the nut is prevented from rolling and shifting, the nut can be more conveniently limited, and the elastic sheet can be more conveniently installed; the production efficiency is increased.

The musical instrument support also comprises a fixed plate 8 which is arranged on the bottom surface of the drum head 1 and is matched and fixed with the bottom plate 3; the fixing plate 8 is provided with a positioning hole 81, and a fastening screw penetrates through the bridge 6, the bottom plate 3 and the drum head 1 and is fixedly connected with the positioning hole 81 on the fixing plate 8.

The arrangement of the fixing plate 8 can further fix the bottom plate 3 on the drum head 1, so that the bottom plate 3 is fixed more firmly. In addition, the fastener runs through musical instrument sign indicating number, bottom plate and drum head, with the fixed setting of locating hole connection on the fixed plate, the part of multiplicable thumb musical instrument has also reduced the installation step of thumb musical instrument simultaneously, further increase production efficiency.