摘要：本发明公开了一种可调节手感的电子钢琴，包括底座外壳、琴键座、琴键和重锤，底座外壳在长度方向上分离为若干段，其若干段之间依次铰接；琴键座对应固定在底座外壳内，琴键座上设有键定位轴座、键延展区、重锤区和定位区，重锤区上设有若干个固定座，第一转轴穿过重锤力矩原点通孔将重锤转动连接在固定座上；多个键定位轴座均匀排布在琴键座上，第二转轴穿过通孔将琴键转动连接在键定位轴座上；琴键的下端面上均设有卡接孔，重锤的一端卡设在卡接孔内，另一端上设置有能够调节固定位置的调节重块；琴键的下方设有若干组与琴键位置一一对应的LED指示灯。能够进行折叠，可调节重锤力矩，弹奏手感更好，同时能够实现指示、教学、引导的功能。

摘要：【中文】本发明公开了一种钢琴辅助踏板，包括置脚面板和三个延伸踏板，置脚面板水平设置，其下端设有用于调节其上下高度的调节机构，置脚面板上端的后端竖直设有连接部，三个延伸踏板分别沿前后方向设置，并左右间隔分布，且后端分别与与连接部活动连接，置脚面板上上下贯穿的设有与三个延伸踏板一一对应的连杆组件，连杆组件的上端设有两个前后间隔分布的装配区，两个装配区择一可拆卸的装配有与对应的延伸踏板的下端接触的触头，连杆组件的下端通过万向节连接有踏片，连杆组件与置脚面板之间连接有回弹部件。优点：能够根据不同使用者的高度调节延伸踏板的高度，并且，能够调节延伸踏板的踩踏幅度，使其充分与钢琴踏板贴合。 【EN】The invention discloses a piano auxiliary pedal, which comprises a foot placing panel and three extending pedals, wherein the foot placing panel is horizontally arranged, the lower end of the foot placing panel is provided with an adjusting mechanism for adjusting the upper and lower heights of the foot placing panel, the rear end of the upper end of the foot placing panel is vertically provided with a connecting part, the three extending pedals are respectively arranged along the front and rear direction and are distributed at intervals left and right, the rear ends of the three extending pedals are respectively movably connected with the connecting part, the foot placing panel is provided with connecting rod assemblies which are in one-to-one correspondence with the three extending pedals in an up-and-down penetrating manner, the upper end of each connecting rod assembly is provided with two assembling areas which are distributed at intervals front and back, one of the two assembling areas is detachably assembled with a contact which is contacted with the. The advantages are that: the height of the extension pedal can be adjusted according to the heights of different users, and the treading amplitude of the extension pedal can be adjusted, so that the extension pedal is fully attached to the piano pedal.