CN215417125U

CN215417125U - Portable piano finger exerciser

Info

Publication number: CN215417125U
Application number: CN202121534003.5U
Authority: CN
Inventors: 张丽妍
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2022-01-04
Anticipated expiration: 2031-07-07

Abstract

The utility model discloses a portable piano finger exerciser, which comprises a bottom box, a flip cover, keys, springs, a supporting plate, a miniature electric jack, a sliding rheostat, central control equipment, a battery and a sliding block, wherein the bottom box is provided with a plurality of through holes; the bottom box is rotatably connected with the flip cover, the keys are arranged in the bottom box, one ends of the keys are rotatably connected with the bottom box, the other ends of the keys are connected with one ends of the springs, the other ends of the springs are connected with the supporting plate, the two ends of the supporting plate are slidably connected with the inner wall of the bottom box, and the miniature electric jack is arranged below the supporting plate; the output end of the battery is electrically connected with the input end of the sliding rheostat, the output end of the sliding rheostat is electrically connected with the input end of the central control device, the sliding end of the sliding rheostat is connected with the sliding block, the output end of the central control device is electrically connected with the input end of the miniature electric jack, and the output end of the miniature electric jack is electrically connected with the input end of the battery. The utility model has simple structure and convenient carrying, and can be suitable for trainers training different finger strength.

Description

Portable piano finger exerciser

Technical Field

The utility model belongs to the field of finger exercising devices, and particularly relates to a portable piano finger exercising device.

Background

The piano is a popular musical instrument, and playing of the piano has considerable difficulty, and a player needs a lot of training to skillfully finish playing of the piano, and finger strength training is an essential part of piano training. Most of the existing piano finger exercisers are palm-shaped, the feeling of playing the piano cannot be fully restored, and the existing piano finger exercisers cannot change the pressing force required by keys and are not suitable for trainers in different conditions.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model aims to provide a portable piano finger exerciser.

The technical scheme adopted by the utility model is as follows: a portable piano finger exerciser comprises a bottom box, a flip cover, keys, springs, a supporting plate, a miniature electric jack, a sliding rheostat, a central control device, a battery and a sliding block; the bottom box is rotatably connected with the flip cover, the keys are arranged in the bottom box, one ends of the keys are rotatably connected with the bottom box, the other ends of the keys are connected with one ends of the springs, the other ends of the springs are connected with the supporting plate, the two ends of the supporting plate are slidably connected with the inner wall of the bottom box, and the miniature electric jack is arranged below the supporting plate; the output end of the battery is electrically connected with the input end of the sliding rheostat, the output end of the sliding rheostat is electrically connected with the input end of the central control device, the sliding end of the sliding rheostat is connected with the sliding block, the output end of the central control device is electrically connected with the input end of the miniature electric jack, and the output end of the miniature electric jack is electrically connected with the input end of the battery.

The keyboard comprises a bottom box, a rotating rod, a key, a mounting hole and a mounting hole.

The top of end box is equipped with first baffle and second baffle, and the below of first baffle is located to the one end of key, and the second baffle below is located to the other end of key.

The inner wall of the bottom box is provided with a slide rail, two ends of the support plate are provided with limit blocks, the limit blocks of the support plate are sleeved in the slide rail on the inner wall of the bottom box, and the support plate is connected with the inner wall of the bottom box in a sliding mode.

The bottom box is characterized in that a first preformed hole is formed in the side face of the bottom box, mounting grooves are formed in two ends of the first preformed hole, two ends of a sliding block are slidably sleeved in the mounting grooves, the sliding block directly slides in the mounting grooves, the head of the sliding block protrudes out of the side face of the bottom box, and the bottom of the sliding block is connected with the output end of the sliding rheostat.

Wherein, flip passes through the hinge and rotates with end box and be connected.

The surface of the supporting plate is provided with a sleeve, the spring is sleeved in the sleeve, and the spring is connected with the supporting plate.

The bottom box is provided with a first preformed hole, the inner side of the first preformed hole is provided with a battery compartment, and the size of the battery compartment is the same as that of the first preformed hole.

The utility model has the beneficial effects that: the utility model has simple structure and convenient carrying, and can be suitable for trainers training different finger strength.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is an attachment schematic diagram of a key;

FIG. 4 is a schematic view of the connection of the sliding varistor and the slider;

fig. 5 is a schematic view of the mounting of the key;

FIG. 6 is a schematic view of the installation of the slider;

FIG. 7 is a schematic structural view of the back box;

in the figure: 1-bottom box, 101-rotating rod, 102-first baffle, 103-second baffle, 104-sliding rail, 105-mounting groove, 2-flip, 3-key, 4-spring, 5-supporting plate, 6-micro electric jack, 7-slide rheostat, 8-central control device, 9-battery and 10-sliding block.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "upper", "front", "rear", "left", "right", "bottom", "side", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present embodiments.

In the description of the embodiments of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

The utility model is further described with reference to the following figures and specific embodiments.

As shown in fig. 1 to 7, a portable finger exerciser for piano comprises a bottom box 1, a flip cover 2, keys 3, springs 4, a support plate 5, a miniature electric jack 6, a slide rheostat 7, a central control device 8, a battery 9 and a slider 10; the bottom box 1 is rotatably connected with the flip cover 2, the keys 3 are arranged inside the bottom box 1, one ends of the keys 3 are rotatably connected with the bottom box 1, the other ends of the keys 3 are connected with one ends of the springs 4, the other ends of the springs 4 are connected with the supporting plate 5, two ends of the supporting plate 5 are slidably connected with the inner wall of the bottom box 1, and the miniature electric jack 6 is arranged below the supporting plate 5; the output end of the battery 9 is electrically connected with the input end of the slide rheostat 7, the output end of the slide rheostat 7 is electrically connected with the input end of the central control device 8, the sliding end of the slide rheostat 7 is connected with the sliding block 10, the output end of the central control device 8 is electrically connected with the input end of the miniature electric jack 6, and the output end of the miniature electric jack 6 is electrically connected with the input end of the battery 9.

The one end of key 3 is equipped with the mounting hole, and the bull stick 101 passes the mounting hole and is connected with key 3 rotation, and the both ends of bull stick 101 and the inner wall fixed connection of end box 1. The top of the bottom box 1 is provided with a first baffle 102 and a second baffle 103, one end of the key 3 is arranged below the first baffle 102, and the other end of the key 3 is arranged below the second baffle 103. The inner wall of the bottom box 1 is provided with a slide rail 104, two ends of the support plate 5 are provided with limit blocks, the limit blocks of the support plate 5 are sleeved in the slide rail 104 on the inner wall of the bottom box 1, and the support plate 5 is connected with the inner wall of the bottom box 1 in a sliding manner. The side of the bottom box 1 is provided with a first preformed hole, two ends of the first preformed hole are provided with mounting grooves 105, two ends of a sliding block 10 can be slidably sleeved in the mounting grooves 105, the sliding block 10 directly slides in the mounting grooves 105, the head of the sliding block 10 protrudes out of the side of the bottom box 1, and the bottom of the sliding block 10 is connected with the output end of the sliding rheostat 7. The flip cover 2 is rotatably connected with the bottom box 1 through a hinge. The surface of the supporting plate 5 is provided with a sleeve, the spring 4 is sleeved in the sleeve, and the spring 4 is connected with the supporting plate 5. The bottom of the bottom box 1 is provided with a second preformed hole, the inner side of the second preformed hole is provided with a battery compartment, and the size of the battery compartment is the same as that of the second preformed hole.

When the miniature electric lifting jack is used, the sliding end of the sliding rheostat 7 is driven by the sliding block 10 limited in the first preformed hole in a sliding mode, the sliding end of the sliding rheostat 7 slides on the resistor, the current of the whole circuit is changed, the change of the induced current of the central control equipment 8 outputs a signal to the miniature electric lifting jack 6, and the telescopic state of the miniature electric lifting jack 6 is changed after the miniature electric lifting jack 6 receives the signal.

The utility model is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.

Claims

1. The utility model provides a portable piano finger exerciser which characterized in that: comprises a bottom box (1), a flip cover (2), keys (3), springs (4), a supporting plate (5), a miniature electric jack (6), a sliding rheostat (7), a central control device (8), a battery (9) and a sliding block (10); the bottom box (1) is rotatably connected with the flip cover (2), the keys (3) are arranged inside the bottom box (1), one ends of the keys (3) are rotatably connected with the bottom box (1), the other ends of the keys (3) are connected with one ends of the springs (4), the other ends of the springs (4) are connected with the supporting plate (5), two ends of the supporting plate (5) are slidably connected with the inner wall of the bottom box (1), and the miniature electric jack (6) is arranged below the supporting plate (5); the output end of the battery (9) is electrically connected with the input end of the sliding rheostat (7), the output end of the sliding rheostat (7) is electrically connected with the input end of the central control device (8), the sliding end of the sliding rheostat (7) is connected with the sliding block (10), the output end of the central control device (8) is electrically connected with the input end of the micro electric jack (6), and the output end of the micro electric jack (6) is electrically connected with the input end of the battery (9).

2. A portable piano fingering device according to claim 1, wherein: the key is characterized in that a mounting hole is formed in one end of the key (3), the rotating rod (101) penetrates through the mounting hole to be connected with the key (3) in a rotating mode, and the two ends of the rotating rod (101) are fixedly connected with the inner wall of the bottom box (1).

3. A portable piano fingering device according to claim 1, wherein: the top of end box (1) is equipped with first baffle (102) and second baffle (103), and the below of first baffle (102) is located to the one end of key (3), and second baffle (103) below is located to the other end of key (3).

4. A portable piano fingering device according to claim 1, wherein: the inner wall of the bottom box (1) is provided with a sliding rail (104), two ends of the supporting plate (5) are provided with limiting blocks, the limiting blocks of the supporting plate (5) are sleeved in the sliding rail (104) on the inner wall of the bottom box (1), and the supporting plate (5) is connected with the inner wall of the bottom box (1) in a sliding mode.

5. A portable piano fingering device according to claim 1, wherein: the side face of the bottom box (1) is provided with a first preformed hole, two ends of the first preformed hole are provided with mounting grooves (105), two ends of a sliding block (10) can be slidably sleeved in the mounting grooves (105), the sliding block (10) directly slides in the mounting grooves (105), the head of the sliding block (10) protrudes out of the side face of the bottom box (1), and the bottom of the sliding block (10) is connected with the output end of a sliding rheostat (7).

6. A portable piano fingering device according to claim 1, wherein: the flip cover (2) is rotatably connected with the bottom box (1) through a hinge.

7. A portable piano fingering device according to claim 1, wherein: the surface of the supporting plate (5) is provided with a sleeve, the spring (4) is sleeved in the sleeve, and the spring (4) is connected with the supporting plate (5).

8. A portable piano fingering device according to claim 1, wherein: the bottom of the bottom box (1) is provided with a second preformed hole, the inner side of the second preformed hole is provided with a battery compartment, and the size of the battery compartment is the same as that of the second preformed hole.