CN204242578U - an electric metronome - Google Patents

Abstract

The utility model discloses a kind of electronic metronome, comprise: housing, pendulum view window, electronic pendulum mass module, motor module, power module, described housing front has transparent plastics material pendulum view window, there is vocal hole housing both sides, enclosure interior is equipped with electronic pendulum mass module, motor module, power module, electronic pendulum mass module, motor module, power module are connected successively, and back side of shell has power switch and power lead.After switching on power, electric power source pair of module motor module is powered, and motor drives electronic pendulum mass module and pendulum is swung, and pendulum swings and sends metronome, sends metronome from the vocal hole of electronic metronome housing both sides.The utility model advantage provides constant current source for metronome, provides metronome long-time sounding work in electronic mode.

Description

an electric metronome

technical field

The utility model relates to an electric metronome, which belongs to the technical field of vocal music and musical instrument practice appliances.

Background technique

The metronome used for ordinary vocal music and musical instrument practice uses a mechanical spring as the power source of the pendulum. Practitioners need to twist the spring at intervals to keep the pendulum striking. The duration of the pendulum striking is limited. Keep the pendulum striking for a long time and make a beat sound continuously, helping the practitioner to concentrate on continuous practice and avoid the trouble of the metronome stopping working.

Contents of the invention

The purpose of the utility model is to provide an electric metronome, which can achieve the effect of making beat sound and can keep working for a long time.

The purpose of this utility model is to realize through the following technical solutions:

As a technical solution, an electric metronome includes: a housing, a pendulum observation window, an electric pendulum module, a motor module, and a power supply module. The front of the housing has a pendulum observation window made of transparent plastic material. There is a sound hole on the side, and the electric pendulum module, the motor module, and the power module are installed inside the shell, and the electric pendulum module, the motor module, and the power module are connected in sequence, and there is a power switch and a power cord on the back of the shell. After the power is turned on, the power supply module supplies power to the motor module, and the motor drives the electric pendulum module to make the pendulum swing. The pendulum swings to make a beat sound, and the beat sound is emitted from the sound holes on both sides of the electric metronome housing.

As a technical solution, the electric pendulum module is driven by a motor.

As a technical solution, the power module uses a transformer to step down the AC voltage.

As a technical solution, the voltage output value of the power module uses 5 volts.

Description of drawings

Below according to accompanying drawing, the utility model is described in further detail.

Fig. 1 is the structural representation of a kind of electric metronome described in the utility model embodiment;

Fig. 2 is the schematic diagram of the circuit structure of a kind of electric metronome described in the utility model embodiment;

Description of symbols in attached drawings 1 and 2: 1. Housing, 2. Pendulum observation window, 3. Sound hole, 4. Power switch, 5. Power cord, 6. Electric pendulum module, 7. Motor module, 8 , Power module.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is specifically introduced as follows:

As a preference, an electric metronome includes: housing 1, pendulum observation window 2, sound hole 3, power switch 4, power cord 5, electric pendulum module 6, motor module 7, power module 8, shell The whole body 1 is made of black plastic, the pendulum observation window 2 is made of transparent plastic, the pendulum observation window 2 is embedded in the front of the housing 1, the sound hole 3 is located on both sides of the housing 1, the power switch 4, the power cord 5 On the back of the housing 1, the electric pendulum module 6, the motor module 7, and the power module 8 inside the housing are electrically connected in sequence, the power module 8 is electrically connected to the power switch 4, and the power switch 4 is electrically connected to the power line 5.

As an implementation, the electric pendulum module is driven by a motor.

As an implementation, the above-mentioned power supply module uses a transformer for AC step-down.

As an implementation, the voltage output value of the above-mentioned power module uses 5 volts.

When the electric metronome is working, the power is input through the power line 5, and the input power enters the power module 8 through the power switch 4. The power module 8 uses a transformer to step down the AC voltage and supplies power to the motor module 7. The motor module 7 drives the electric pendulum module 6. The electric pendulum swings to emit a beat sound, and the beat sound is emitted through the sound holes 3 on both sides of the housing 1 .

Claims (4)

1. An electric metronome, characterized in that it comprises: a housing, a pendulum observation window, an electric pendulum module, a motor module, and a power supply module, the front of the housing has a pendulum observation window made of transparent plastic material, There is a sound hole on the side, and the electric pendulum module, the motor module, and the power module are installed inside the shell, and the electric pendulum module, the motor module, and the power module are connected in sequence. The module supplies power to the motor module, and the motor drives the electric pendulum module to make the pendulum swing. The pendulum swings to make a beat sound, and the beat sound is emitted from the sound holes on both sides of the electric metronome housing. 2. An electric metronome according to claim 1, characterized in that the electric pendulum module is driven by a motor. 3. An electric metronome according to claim 1, characterized in that, the above-mentioned power supply module uses a transformer for AC step-down. 4. An electric metronome according to claim 1, characterized in that the voltage output value of the power supply module is 5 volts.