4 results about "Mediant" patented technology

The utility model discloses an integrated subarea insert type reed plate half-scale harmonica, which comprises a reed plate, the reed plate comprises a seat plate, an alto insert and a treble insert which are spliced into a whole, the thickness of the seat plate is 2 + / -0.02 mm, spring grooves are arranged on the seat plate in a double bass area and a bass area, windows are arranged on the seat plate in an alto area and a treble area, step slots are arranged on the peripheries of the windows, the thickness of the alto insert is 1.5 + / -0.02 mm, and the thickness of the treble insert is 1.5 + / -0.02 mm. The thickness of the slot is 1.0 + / -0.02 mm, the middle-pitch insertion sheet is provided with a middle-pitch spring groove, the thickness of the high-pitch insertion sheet is 1.0 + / -0.02 mm, the high-pitch insertion sheet is provided with a high-pitch spring groove, and the middle-pitch insertion sheet and the high-pitch insertion sheet are inserted into the slot to cover the window. According to the utility model, the reed plates are arranged in different areas, the double bass and bass are large, the middle and high pitches are clear, and the timbre of each sound area is full; and the integrated reed plate improves the volume, the loudness and the air tightness compared with a reed plate segmented fixing and multi-layer reed plate structure, and the overall tone quality of the harmonica is higher.

The application discloses a weighted keyboard with touch feeling adjustment of electric piano, and relates to the technical field of electric piano, which comprises a piano shell and a touch feeling adjustment mechanism, wherein the touch feeling adjustment mechanism is movably connected to the outer wall of the piano shell in a hinge type through a pin shaft. The touch feeling adjustment mechanism is arranged to control the magnetic field superposition resistance of the weighted iron by delivering different currents in different zones, so that the key damping of high, low and medium sound zones can be independently adjusted, and the buffer cotton can buffer the collision to reduce the noise and prevent the damage of components. The lifting mechanism is arranged to drive the second sliding rod and the first sliding rod to synchronously lift and lower the coil base in different zones through electromagnetic attraction, so that the magnetic gap can be widely adjusted.

The utility model discloses a microphone core shell structure for improving high pitch, and belongs to the technical field of sound transmission. Comprising a shell, a microphone core inner sleeve is arranged in the shell, a microphone core magnetic circuit is clamped in the microphone core inner sleeve, four through grooves are evenly formed in the periphery of the middle of the inner wall of the shell, four sets of inner ribs are integrally formed in the periphery of the inner wall of the shell, and through holes are formed in the positions, below the through grooves, of the periphery of the outer wall of the shell. Through the structural characteristic that the three inner ribs in each group and the outer wall of the microphone core inner sleeve form a cavity, the space distribution in each direction is changed, the spaces of low pitch, alto pitch and high pitch can be effectively adjusted, the distribution is more reasonable, the connection and expression of the low pitch, the alto pitch and the high pitch are more distinct, smooth and clear, and the sound quality is improved. Therefore, the effect of the microphone core in the using process is improved.

The utility model relates to the technical field of sound boxes, in particular to a playing and singing sound box with balanced alto, which comprises a box body, the box body is a wooden box with the thickness of more than 18mm, high-density acoustic foam is paved on the inner wall of the box body, the front part of the box body is of a halfpace structure, the inclination angle of inclined planes on two sides of the halfpace structure is 30-60 degrees, and a high pitch unit is arranged at the upper part of the front surface of the halfpace structure. The high-pitch unit horn adopts a compression driver and a waveguide horn, a middle-pitch unit is arranged at the lower part of the front surface, the diameter of the middle-pitch unit is 12-15 inches, a low-pitch unit is arranged at the upper parts of the inclined surfaces at the two sides of the halfpace structure respectively, the diameter of the low-pitch unit is also 12-15 inches, and an air pipe is arranged below the low-pitch unit; according to the sound box, the large-size alto unit is adopted, the output capacity of human voice frequency bands is improved, the alto unit is installed on the central plane, the alto unit is far away from the sharp corner of the box body, edge diffraction interference is remarkably reduced, the intermediate frequency capacity is outstanding, the power of the power amplifier can be reduced, and energy consumption is reduced.