CN216697603U

CN216697603U - Demonstration teaching aid for simulating household circuit by using direct current

Info

Publication number: CN216697603U
Application number: CN202220121337.8U
Authority: CN
Inventors: 左振军
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-06-07
Anticipated expiration: 2032-01-17

Abstract

The utility model provides a demonstration teaching aid for simulating a household circuit by using direct current, which relates to the technical field of teaching aids and comprises the following components: the demonstration board is placed on the top of the desktop, and a plurality of circuit lines are fixed on the front surface of the demonstration board; the power supply body is arranged at the top of the desktop and is arranged on one side of the demonstration board; the electric energy meter is adsorbed on the front surface of the demonstration board through a strong magnet; and the knife switch is arranged on one side of the electric energy meter and is adsorbed on the front surface of the demonstration board through a strong magnet. In the aspect of integral use, students can watch the teaching materials at a short distance even without touching the teaching materials, and the teaching materials do not need to be hung in a gallbladder for experiments, so that various effects mentioned in textbooks can be realized: if short circuit, open circuit, total power are too big, the switch receives the harm that live wire or zero line produced, electric leakage harm, single line electric shock, double-line electric shock and so on function, adopts magnet absorption iron sheet simultaneously, and the personnel of being convenient for carry out the during operation and change the work to experimental facilities.

Description

Demonstration teaching aid for simulating household circuit by using direct current

Technical Field

The utility model relates to the technical field of teaching aids, in particular to a demonstration teaching aid for simulating a household circuit by using direct current.

Background

The teaching aid is a material object which aims at propagating science and technology and educating people, is a complete science and technology medium and is an indispensable device in teenager science and technology activities, and the teaching aid used in the science and technology activities comprises a material object teaching aid and a replica teaching aid, and specifically comprises specimens or samples from the nature, such as models used by human anatomy models, aeronautical models, maritime models and vehicle models. The teaching aid can also be divided into two types for demonstration and practice operation.

However, most of the existing circuit simulation teaching aids use textbooks and videos to demonstrate teenagers, so that the teenagers cannot visually demonstrate circuit demonstration during learning, and meanwhile, the circuit demonstration is realized in a real circuit demonstration mode, so that a simulation experiment is dangerous easily, and the injury to personnel is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the existing circuit simulation teaching aid mostly uses textbooks and videos to demonstrate teenagers, so that the teenagers cannot visually demonstrate the circuit demonstration during learning, and meanwhile, the simulation experiment is easy to cause danger and hurt to personnel due to high power supply current in the circuit demonstration.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a demonstrate teaching aid with direct current simulation family's circuit, a demonstrate teaching aid with direct current simulation family's circuit includes:

the demonstration board is placed on the top of the desktop, and a plurality of circuit lines are fixed on the front surface of the demonstration board;

the power supply body is arranged at the top of the desktop and is arranged on one side of the demonstration board;

the electric energy meter is adsorbed on the front surface of the demonstration board through a strong magnet;

the knife switch is arranged on one side of the electric energy meter, and the strong magnet is adsorbed on the front surface of the demonstration board;

the air switch is arranged below the knife switch;

the bulb switch is arranged on one side above the air switch;

the experimental bulb is arranged on one side of the bulb switch;

the two-pin socket is arranged on one side of the experimental bulb;

the three-pin socket is arranged on one side of the two-pin socket;

the high-power equipment is placed at the top of the desktop;

the simulated doll is placed on the top of the desktop;

and the metal box is placed at the top of the table top.

Preferably, a plurality of LED lamps are fixed on the outer surface of the simulated small person.

Preferably, a buzzer is fixed on one side, close to one of the LED lamps, of the outer surface of the simulated child.

Preferably, the front surface of the demonstration board is fixed with five iron sheets through screws.

Preferably, the front surfaces of the five iron sheets are all provided with wood plates, and the rear surfaces of the five wood plates are all adhered with three magnets.

Preferably, the front surfaces of the five boards are adhered to the rear surfaces of the air switch, the bulb switch, the experimental bulb, the two-pin socket, and the three-pin socket, respectively.

Compared with the prior art, the utility model has the advantages and positive effects that,

in the utility model, in the aspect of integral use, students can watch the teaching materials at a short distance even without touching the teaching materials, and do not need to raise the heart to hang the gallbladder for experiments, and all the effects mentioned in the textbook can be realized: if short circuit, open circuit, total power are too big, the switch receives the harm that live wire or zero line produced, electric leakage harm, single line electric shock, double-line electric shock and so on function, adopts magnet absorption iron sheet simultaneously, and the personnel of being convenient for carry out the during operation and change the work to experimental facilities.

Drawings

FIG. 1 is a schematic perspective view of a demonstration teaching aid for simulating a household circuit by using direct current according to the present invention;

FIG. 2 is a schematic view of a partial three-dimensional structure of a demonstration teaching aid for simulating a household circuit by using direct current according to the present invention;

FIG. 3 is a schematic diagram of a partial rear perspective structure of a demonstration teaching aid for simulating a household circuit by using direct current according to the present invention;

fig. 4 is a schematic partial three-dimensional structure diagram of a demonstration teaching aid for simulating a household circuit by using direct current.

Illustration of the drawings: 1. a demonstration board; 2. a power supply body; 3. an electric energy meter; 4. a knife switch; 5. iron sheets; 6. a wood board; 7. a magnet; 8. an air switch; 9. a bulb switch; 10. an experimental bulb; 11. a two-pin socket; 12. a three-pin socket; 13. an LED lamp; 14. a high power device; 15. simulating a small person; 16. a metal case; 17. a buzzer.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1 to 4, the present invention provides a demonstration teaching aid for simulating a home circuit by using direct current, including:

the demonstration board 1 is placed on the top of the desktop, a plurality of circuit lines are fixed on the front surface of the demonstration board 1, and the circuit lines are respectively a live wire, a zero line and a ground wire from top to bottom;

the power supply body 2 is arranged on the top of the desktop and on one side of the demonstration board 1, the power supply body 2 is used for providing a power source for equipment, and the power supply body 2 is a 12V power supply, so that the influence on personnel is avoided;

the electric energy meter 3 is adsorbed on the front surface of the demonstration board 1 through a strong magnet, the electric energy meter 3 is used for displaying current, voltage and power numerical values, and the electric energy meter 3 is electrically connected with the power supply body 2;

the knife switch 4 is arranged on one side of the electric energy meter 3, is adsorbed on the front surface of the demonstration board 1 through a strong magnet, is used for controlling a circuit main power supply, and is electrically connected with the input end of the knife switch 4 and the output end of the knife switch 4 and a live wire;

the air switch 8 is arranged below the knife switch 4, the air switch 8 is used for performing circuit protection work, the input end of the air switch 8 is electrically connected with the output end of the knife switch 4, and the output end of the air switch 8 is electrically connected with a zero line;

the bulb switch 9 is arranged on one side above the air switch 8, the bulb switch 9 is used for controlling current output of the experimental bulb 10, and the input end of the bulb switch 9 is electrically connected with the zero line through alligator pliers;

the experimental bulb 10 is arranged on one side of the bulb switch 9, the experimental bulb 10 is used for illumination display, the output end of the experimental bulb 10 is electrically connected with the output end of the bulb switch 9 through alligator pliers, and the output end of the experimental bulb 10 is electrically connected with a live wire through the alligator pliers;

the two-pin socket 11 is arranged on one side of the experimental bulb 10, the two-pin socket 11 is used for connecting two-pin plug equipment, the input end of the two-pin socket 11 is electrically connected with a zero line through alligator pliers, and the output end of the two-pin socket 11 is electrically connected with a live wire through alligator pliers;

the three-pin socket 12 is arranged on one side of the two-pin socket 11, the three-pin socket 12 is used for connecting three-pin plug equipment, the input end of the three-pin socket 12 is electrically connected with a zero line through alligator pliers, and the output end of the three-pin socket 12 is electrically connected with a live wire through the alligator pliers;

the high-power equipment 14 is placed at the top of the desktop, and the high-power equipment 14 is two-pin equipment and is used for generating larger current consumption;

the simulation small person 15 is placed on the top of the desktop, and the simulation small person 15 is used for simulating personnel to contact the circuit;

and the metal box 16 is placed at the top of the table top, and the metal box 16 is a tripod device.

As shown in fig. 1 and 4, a plurality of LED lamps 13 are further fixed on the outer surface of the dummy person 15, and the LED lamps 13 are used for giving a light source alarm when the dummy person 15 contacts the circuit.

As shown in fig. 1 and 4, a buzzer 17 is further fixed on one side of the outer surface of the simulated small person 15 close to one of the LED lamps 13, and the buzzer 17 is used for giving a noise alarm when the simulated small person 15 contacts the circuit.

As shown in fig. 2-3, further, the front surface of the demonstration board 1 is fixed with five iron sheets 5 by screws, and the iron sheets 5 are used for providing adsorption support work when the structure is installed.

As shown in fig. 2-3, further, the front surfaces of the five iron sheets 5 are all provided with a wood plate 6, three magnets 7 are adhered to the rear surfaces of the five wood plates 6, and the magnets 7 are made of rubidium magnets and have relatively strong magnetism, so that the wood plates 6 can be conveniently adsorbed on the front surfaces of the iron sheets 5.

As shown in fig. 2 to 3, further, the front surfaces of five boards 6 are respectively adhered to the rear surfaces of the air switch 8, the bulb switch 9, the experimental bulb 10, the two-pin socket 11 and the three-pin socket 12, and the boards 6 perform isolation work to prevent the device operating current from contacting the iron sheet 5.

The working principle is as follows: when demonstrating whether a non-bright bulb is electrified, connecting a bulb switch 9 with a zero line, connecting an experimental bulb 10 with a live line, disconnecting the switch, and after the lamp is turned off, contacting the front end of a simulated small person 15 with a metal screw part of the experimental bulb 10 exposed outside, and simulating an LED lamp 13 on the body of the simulated small person 15 to light a buzzer 17 to sound, which shows that the connection mode is easy for people to get an electric shock;

when the damage of the short circuit is demonstrated, the air switch 8 is connected into a circuit, the live wire and the zero line are connected through a lead, the short circuit is caused, and the air switch 8 can be found to be tripped;

when the damage of overlarge total power is demonstrated, the air switch 8 is connected into the circuit, voltage, current and electric power data of the circuit can be read out from the dial plate of the self-made electric energy meter 3, then the self-made high-power equipment 14 is inserted into the two-pin socket 11, the current and electric power data in the dial plate of the electric energy meter 3 are immediately increased, and the air switch 8 is found to be tripped;

when the electric leakage phenomenon and the electric leakage protection phenomenon are demonstrated, a self-made metal box 16 is connected into a three-pin socket 12, LED beads in the box emit light, one end of a wire with a 5 kiloohm resistor in the middle is clamped at a red wire exposed part with an insulation skin stripped, the other end of the wire clamps the side wall of the metal box 16, a simulated small person 15 is enabled to collide with the side wall of the metal box 16, the simulated small person 15 can be found to be bright on the body, a buzzer 17 sounds, and the electric leakage phenomenon of the metal box 16 is shown;

when the problem of zero line open circuit is demonstrated, the zero line behind the knife switch 4 is disconnected, the switch on the branch is closed, the experimental bulb 10 is found to be not bright, the LED bead in the metal box 16 is not bright, but the simulated small person 15 is contacted with the experimental bulb 10, the zero line and the like, the electric energy is found, and the zero line is also electrified at the moment, so that potential safety hazards exist.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. A demonstration teaching aid for simulating a household circuit by using direct current is characterized by comprising:

the demonstration board (1) is placed on the top of the desktop, and a plurality of circuit lines are fixed on the front surface of the demonstration board (1);

the power supply body (2) is placed at the top of the desktop and is placed on one side of the demonstration board (1);

the electric energy meter (3) is adsorbed on the front surface of the demonstration board (1) through a strong magnet;

the knife switch (4) is arranged on one side of the electric energy meter (3) and is adsorbed on the front surface of the demonstration board (1) through a strong magnet;

the air switch (8) is arranged below the knife switch (4);

the bulb switch (9) is arranged on one side above the air switch (8);

the experimental bulb (10) is arranged on one side of the bulb switch (9);

the two-pin socket (11) is arranged on one side of the experimental bulb (10);

a three-pin socket (12) arranged on one side of the two-pin socket (11);

the high-power equipment (14) is placed on the top of the desktop;

a simulated doll (15) placed on top of the table top;

and the metal box (16) is placed on the top of the table top.

2. A demonstration teaching aid for simulating a household circuit with direct current according to claim 1, characterized in that: and a plurality of LED lamps (13) are fixed on the outer surface of the simulation doll (15).

3. A demonstration teaching aid for simulating a household circuit with direct current according to claim 2, characterized in that: and a buzzer (17) is fixed on one side of the outer surface of the simulated small person (15) close to one of the LED lamps (13).

4. A demonstration teaching aid for simulating a household circuit with direct current according to claim 1, characterized in that: the front surface of the demonstration board (1) is fixed with five iron sheets (5) through screws.

5. A demonstration teaching aid for simulating household circuits by direct current according to claim 4, characterized in that: the front surfaces of the five iron sheets (5) are provided with wood plates (6), and the rear surfaces of the five wood plates (6) are adhered with three magnets (7).

6. A demonstration teaching aid for simulating household circuits by direct current according to claim 5, characterized in that: the front surfaces of the five wood boards (6) are respectively adhered to the rear surfaces of the air switch (8), the bulb switch (9), the experimental bulb (10), the two-pin socket (11) and the three-pin socket (12).