Electric appliance teaching safety protection device

Abstract

The invention discloses an electric appliance teaching safety protection device, which comprises a shell and a rotating wheel, wherein a moving groove is embedded in the upper surface of the shell, apush button is arranged above the moving groove, a resistance meter is arranged on the surface of the front end of the shell, a knob is arranged on the inner side of the resistance meter, the outer surface of the left side of the shell is provided with a plug wire groove, the inner side of the plug wire groove is provided with a plug wire port, a power-off button is arranged on the lower side of the plug wire groove, an annular resistor is arranged below contact teeth, a guide-out sheet is fixed to the tail end of the right side of the annular resistor, a spring is arranged at the tail end ofthe inner side of the knob, a plug is arranged at the left end of the annular resistor, a connecting wire is connected to the tail end of the inner side of the plug, and a connecting rod is connectedto the upper end of the plug. According to the invention, by arranging the resistance meter and the knob, the magnitude of the access resistance value is controlled through the rotation of the knob, so that the change of current in a circuit is simulated to be suitable for situation simulation in teaching practice, and a certain help is provided for teaching.

Description

technical field [0001] The invention relates to the technical field of safety protection devices, in particular to a safety protection device for electrical teaching. Background technique [0002] The electrical teaching safety protection device is installed on a common power socket, and by changing the voltage transformation, it can control the voltage within the range of the safe voltage value of the human body after installation, so as to achieve the effect and purpose of protection. [0003] During the use of safety protection devices on the market, they cannot be applied to a variety of socket types, and their applicable range cannot be increased. They cannot imitate the transformation of current in the circuit so that they are suitable for teaching practice. The simulation is helpful for teaching. , the voltage cannot be controlled within the range of the safe voltage of the human body to ensure the safety of the human body, the contact between the rescuer and the elec...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a safety protection device for electrical teaching, to solve the above-mentioned background technology that cannot be applied to various types of sockets, cannot increase its applicable range, and cannot imitate the transformation of current in the circuit so as to be applicable to The situation simulation in the teaching practice is helpful to the teaching. It cannot control the voltage within the range of the safe voltage of the human body to ensure the safety of the human body. It cannot avoid the contact between the rescuers and the electric shocker to make it safer. It can be used as an adapter socket, and the overall structure is complicated and inconvenient to install and use.

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