Piano learning device conveniently carried with student

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0016] See Figure 1-4 , The present invention provides a technical solution: a piano learning device that is convenient for students to carry, including a rectangular shell 6 and a storage box 14. The shape of the shell 6 is provided with a lithium battery pack 12, a loudspeaker 8 and a single-chip computer 15. The upper surface of the rectangular housing 6 is provided with a power switch 5, and the front side of the rectangular housing 6 is provided with a heat dissipation hole 1, through which the present invention can be ventilated and dissipated. The lower end of the right side of the rectangular housing 6 is provided with a flexible The bottom pad 9, the flexible bottom pad 9 is rotatably connected with a PVC plastic button 4 through a hinge 11 arranged in the middle of its upper surface. A reset is provided between the rear end of the lower surface of the PVC plastic button 4 and the rear end of the upper surface of the flexible bottom pad 9 Spring 10, the front end of the lower surface of the PVC plastic button 4 is provided with a pressure block 13, the upper surface of the flexible bottom pad 9 is provided with a pressure sensor 2 at the end close to the pressure block 13, and the lower surface of the flexible bottom pad 9 is provided with a suction cup 3, a suction cup 3 The upper surface is provided with a lifting rod 7, the number of suction cups 3 is four, and the four suction cups 3 are evenly distributed around the lower surface of the flexible bottom pad 9. The invention can be fixed to the desktop through the suction cup 3, and the rectangular shell 6 passes The hinge provided at the left end of the upper surface is rotatably connected with the upper cover plate 19, the upper cover plate 19 is provided with lifting lugs 17 on the upper end of the left side, the right side surface of the rectangular housing 6 is provided with a card slot 16 and the upper cover plate 19 There is a card block 18 corresponding to the card slot 16 on the top of the right side. The pressure sensor 2 and the single-chip computer 15 are bidirectionally connected. The input end of the single-chip computer 15 is electrically connected to the output end of the external power supply through the power switch 5. The output end is electrically connected with the input end of the loudspeaker 8. The rear side of the rectangular shell 6 is provided with a USB interface 20, which is connected to the single-chip computer 15 in two directions, and the single-chip 15 controls the loudspeaker 8 using a common method in the prior art , This portable piano learning device has a tight and compact structure, is convenient to carry, and occupies a small space when used, and can conveniently assist beginners in key finding and fingering exercises.

[0017] When in use: take the invention out of the storage box 14, then unfold the invention, suck the suction cup 3 onto the table top to fix the position of the invention, when people practice playing the piano, their fingers press down the PVC plastic button 4, The pressing block 13 arranged on the lower surface of the PVC plastic button 4 moves downward and presses on the upper surface of the pressure sensor 2, the pressure signal is sensed by the pressure sensor 2, and the signal is transmitted to the single-chip computer 15, and the single-chip 15 controls the amplifier 8 to play it Correspondingly, the reset spring 10 stretches at the same time. When the finger is removed from the upper surface of the PVC plastic button 4, the reset spring 10 contracts and pulls the PVC plastic button 4 to reset.

[0018] The invention can be folded conveniently, occupies less space when being carried, and is convenient to carry and use; it can store electric energy for use by mobile devices, which improves the convenience of use; the setting of the suction cup 3 facilitates the position fixation of the invention and improves the convenience of use .

[0019] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. And variations, the scope of the present invention is defined by the appended claims and their equivalents.