CN112802437A - 37-tone xylophone keyboard - Google Patents

Abstract

The invention discloses a 37-tone xylophone keyboard which comprises a keyboard frame, transparent acrylic piano keys and a hammer structure, wherein the transparent acrylic piano keys are divided into upper piano key covers and lower piano key covers, the upper piano key covers and the lower piano key covers are sequentially distributed from top to bottom, a plurality of capacitive pressure sensors are arranged inside the transparent acrylic piano keys, the capacitive pressure sensors respectively correspond to the upper piano key covers and the lower piano key covers, backlight LED lamps are electrically connected to the capacitive pressure sensors, the keyboard frame is divided into a frame plate and a cross rod, and the number of the frame plates is two. According to the invention, the appearance and the key input mode of the traditional keyboard are overturned by the design, the keyboard is made into a percussion instrument-xylophone, the keyboard keys are knocked by using a hammer, corresponding characters can be input, corresponding scales can be emitted, the interestingness is high, the traditional boring input method is eliminated, and the occupational diseases of modern people, namely 'keyboard hands' can be prevented.

Description

37-tone xylophone keyboard

Technical Field

The invention belongs to the technical field of xylophone keyboards, and particularly relates to a 37-tone xylophone keyboard.

Background

Xylophones are one type of keyboard percussion instruments. Placing wooden keys on the resonance tube, and beating with a piano bar to generate melody; the key arrangement is similar to a piano keyboard. The xylophone generally refers to a high-pitch xylophone, and has narrow keys, high range and crisp timbre. The common xylophone also has a marimba, keys are wide from high pitch to low pitch, the range of sound is wide, and the timbre is mellow;

at present, characters are input by means of knocking of fingers on a traditional keyboard, the appearance and key arrangement of the traditional keyboard are mostly in an international standard form, and the traditional keyboard is not output with tone and scale associated with a certain musical instrument, so that the use function is single, and the existing requirements cannot be met.

Disclosure of Invention

The invention aims to: in order to solve the problems that at present, characters are input by means of knocking of fingers, the appearance and key arrangement of a traditional keyboard are mostly in an international standard form, and the traditional keyboard is not output with timbre and scale associated with a certain musical instrument, so that the use function is single, and the existing requirements cannot be met.

The technical scheme adopted by the invention is as follows: a37-tone xylophone keyboard comprises a keyboard rack, transparent acrylic piano keys and a hammer structure, wherein the transparent acrylic piano keys are provided with a plurality of upper piano key covers and lower piano key covers which are distributed from top to bottom in sequence, a plurality of capacitive pressure sensors are arranged inside the transparent acrylic piano keys and respectively correspond to the upper piano key covers and the lower piano key covers, the capacitive pressure sensors are electrically connected with backlight LED lamps, the keyboard rack is divided into two rack plates and two cross rods, the rack plates are distributed in sequence, the number of the cross rods is four, the cross rods are sequentially and fixedly arranged between the inner sides of the rack plates, the transparent acrylic piano keys are fixedly arranged on the cross rods through fastening screws, sound boxes are fixedly arranged on the inner wall surfaces of the rack plates, and control plates are arranged on the inner wall surfaces of the rack plates, meanwhile, the capacitive pressure sensor and the sound box are electrically connected with the control panel.

In a preferred embodiment, the hammer structure is provided with two sets, the hammer structure is composed of a metal hammer rod and a circular conductive silica gel hammer head, and the circular conductive silica gel hammer head is arranged at the end of the metal hammer rod.

In a preferred embodiment, the transparent acrylic piano key is printed with a LAYOUT of a.

In a preferred embodiment, the internal circuit board of the backlight LED lamp is electrically connected to a backlight driving module.

In a preferred embodiment, a circle of sealing ring is fixedly mounted on the inner wall surface of the key lower cover, and when the key upper cover is connected with the key lower cover, the key upper cover is in contact with the sealing ring.

In a preferred embodiment, both sides of the bottom end surface of the frame plate are fixedly provided with anti-skidding foot pads, and the anti-skidding foot pads are made of rubber materials.

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

in the invention, all important components such as the capacitive pressure sensor, the backlight LED lamp and the like are wrapped in the acrylic box, so that the waterproof design is realized; the capacitance type pressure sensor replaces the traditional key function, so that the sensitivity is greatly improved, the operation fatigue of a user can be relieved by inputting characters in a hammer structure knocking mode, and the capacitance type pressure sensor replaces the key function, is not in direct contact with hardware, and has unlimited service life; by adopting the keyboard rack, the transparent acrylic organ keys and the backlight LED lamp, the novel combination mode ensures that the keyboard is no longer a boring input mode in the using process and teaches in joy; in the process, due to the use of the backlight LED lamp with the breathing mode, a user can intuitively determine that the key is input, so that the problem of key input leakage is solved;

the design changes the appearance and the key input mode of the traditional keyboard, the keyboard is made into a percussion instrument-xylophone, the hammer structure is used for knocking the keys of the keyboard, corresponding characters can be input, corresponding scales can be sent out, the interestingness is high, the traditional boring input method is eliminated, and the occupational disease of modern people, namely 'keyboard hands' can be prevented.

Drawings

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

FIG. 2 is a schematic view of the overall exploded structure of the present invention;

FIG. 3 is a schematic structural diagram of the hammer of the present invention.

The labels in the figure are: 1. transparent acrylic piano key; 11. a key upper cover; 12. a key lower cover; 13. a capacitive pressure sensor; 14. a backlight LED lamp; 2. a keyboard frame; 21. a cross bar; 22. a frame plate; 3. a hammer structure; 31. a metal hammer rod; 32. a round conductive silica gel hammer head; 4. sounding; 5. and a control panel.

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 embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. 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.

Referring to fig. 1-3, a 37-tone xylophone keyboard comprises a keyboard frame 2, a transparent acrylic piano key 1 and a hammer structure 3, wherein the transparent acrylic piano key 1 is provided with a plurality of keys which are divided into a key upper cover 11 and a key lower cover 12, the key upper cover 11 and the key lower cover 12 are sequentially distributed from top to bottom, a plurality of capacitive pressure sensors 13 are arranged inside the transparent acrylic piano key 1, the capacitive pressure sensors 13 respectively correspond to the key upper cover 11 and the key lower cover 11, backlight LED lamps 14 are electrically connected to the capacitive pressure sensors 13, the capacitive pressure sensors 13 are arranged to replace the key functions, the keys are not in direct contact with hardware, the service life tends to be infinite, the capacitive pressure sensors 13 replace the traditional key functions, the sensitivity is greatly improved, characters are input by adopting the hammer structure 3 to knock, and the operation fatigue feeling of a user can be relieved, keyboard tray 2 divide into frame plate 22, horizontal pole 21, and frame plate 22 is equipped with two, distributes in proper order simultaneously, and horizontal pole 21 is equipped with four, and fixed mounting is between the inboard of frame plate 22 in proper order simultaneously, and transparent acrylic musical instrument button 1 all passes through fastening screw fixed mounting on horizontal pole 21, and the equal fixed mounting of internal face of frame plate 22 has stereo set 4, and the internal face of frame plate 22 is equipped with control panel 5, and capacitive pressure sensor 13, stereo set 4 all are connected with control panel 5 electricity simultaneously.

The hammer structure 3 comprises two groups, the hammer structure 3 consists of a metal hammer rod 31 and circular conductive silica gel hammer heads 32, and the circular conductive silica gel hammer heads 32 are arranged at the end of the metal hammer rod 31; the transparent acrylic piano Key 1 is printed with LAYOUT blue fonts, the LAYOUT blue fonts represent combined keys, namely, the combined keys are input in a mode of 'Fn + Key', one hammer structure 3 is used for pressing the Fn Key, the other hammer structure 3 is used for knocking the keys printed with the blue fonts, the corresponding functions can be realized, the single pressing of the Fn Key does not have any function and scale output, the function and scale output can be realized only by matching with other keys, and the backlight LED lamp 14 is normally on when the Fn Key is used; the internal circuit board of the backlight LED lamp 14 is electrically connected with a backlight driving module, so that the control panel 5 controls the backlight LED lamp 14 below the key to light up in a breathing mode, a user can visually determine that the key is input, and the problem of key input missing is solved; a circle of sealing ring is fixedly arranged on the inner wall surface of the key lower cover 12, and meanwhile, when the key upper cover 11 is connected with the key lower cover 12, the key upper cover 12 is in contact with the sealing ring, so that the waterproof performance can be improved; the equal fixed mounting in bottom face both sides of frame plate 22 has anti-skidding callus on the sole, and anti-skidding callus on the sole adopts the rubber material to make simultaneously, sets up anti-skidding callus on the sole and is used for the antiskid, improves stability.

The working principle is as follows: when the invention is used, the transparent acrylic organ key 1 is firstly arranged on the cross bar 21 in the keyboard frame 2, and other electrical appliance elements are assembled, at the moment, the keyboard frame 2 can be arranged on a telescopic bracket, thereby being convenient for users with different heights to use, so that the capacitive pressure sensor 13 is adhered on the inner surface of the transparent acrylic organ key 1, the sensing capacitance of the capacitive pressure sensor 13 is a fixed and unchangeable tiny value under the condition of no action, when a user uses the hammer structure 3 to knock a certain key of the transparent acrylic organ key 1, the thin film sheet generates tiny displacement which is in direct proportion to the pressure of a medium, because the hammer structure 3 is a conductor and is contacted with a human body, the sensing capacitance formed between a human finger and GND is connected in parallel with the sensing capacitance formed between the capacitive pressure sensor 13 and GND, which is equivalent to increase the surface capacitance value of the capacitive pressure sensor 13, when the capacitance reaches a set value, the KBC detects the change, firstly, which key is pressed is determined, then the control panel 5 is controlled to automatically switch, a standard level signal corresponding to the pressure is output, the transistor is controlled to be turned on, and therefore the corresponding key function is realized, in the process, the KBC simultaneously sends out an instruction to inform the audio module to send out a scale corresponding to the key, a loudspeaker sends out a sound, and meanwhile, the backlight driving module in the backlight LED lamp 14 is informed to control the backlight LED lamp 14 below the key to be turned on in a breathing mode.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (6)

1. The utility model provides a 37 sound xylophone keyboard, includes keyboard tray (2), transparent ya keli button (1) and hammer structure (3), its characterized in that: the transparent acrylic piano key (1) is provided with a plurality of keys and is divided into an upper key cover (11) and a lower key cover (12), the upper key cover (11) and the lower key cover (12) are sequentially distributed from top to bottom, a plurality of capacitive pressure sensors (13) are arranged inside the transparent acrylic piano key (1), the capacitive pressure sensors (13) respectively correspond to the upper key cover (11) and the lower key cover (11), the capacitive pressure sensors (13) are electrically connected with backlight LED lamps (14), the keyboard frame (2) is divided into a frame plate (22) and a cross rod (21), the frame plate (22) is provided with two frames which are sequentially distributed simultaneously, the number of the cross rods (21) is four, the four frames are sequentially and fixedly mounted between the inner sides of the frame plate (22), and the transparent acrylic piano key (1) is fixedly mounted on the cross rod (21) through fastening screws, the wall surface of the frame plate (22) is fixedly provided with a sound box (4), the wall surface of the frame plate (22) is provided with a control plate (5), and the capacitive pressure sensor (13) and the sound box (4) are electrically connected with the control plate (5).

2. The 37-tone xylophone keyboard of claim 1, wherein: hammer structure (3) are equipped with two sets ofly, hammer structure (3) comprise metal hammer pole (31) and circular electrically conductive silica gel tup (32), and circular electrically conductive silica gel tup (32) all establish the end department at metal hammer pole (31) simultaneously.

3. The 37-tone xylophone keyboard of claim 1, wherein: the transparent acrylic piano key (1) is printed with a LAYOUT blue font.

4. The 37-tone xylophone keyboard of claim 1, wherein: the internal circuit board of the backlight LED lamp (14) is electrically connected with a backlight driving module.

5. The 37-tone xylophone keyboard of claim 1, wherein: a circle of sealing ring is fixedly mounted on the inner wall surface of the key lower cover (12), and meanwhile when the key upper cover (11) is connected with the key lower cover (12), the key upper cover (12) is in contact with the sealing ring.

6. The 37-tone xylophone keyboard of claim 1, wherein: the equal fixed mounting in bottom face both sides of frame plate (22) has anti-skidding callus on the sole, and anti-skidding callus on the sole adopts the rubber material to make simultaneously.

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