Demonstration board for safe electricity utilization

Abstract

The utility model discloses a safe electricity utilization demonstration board, comprising a demonstration board on which an adjustable electric shock demonstration structure is installed; the adjusting type electric shock demonstration structure comprises a three-phase power supply plug, a safety transformer, a power supply switch, an experience power supply switch, two pairs of circuit output heads and an adjusting fixing assembly, the three-phase power supply plug is installed on the demonstration board, the safety transformer is installed at the upper left corner of the demonstration board, and the three-phase power supply plug is installed on the safety transformer; the power supply switch is mounted on the right of the safety transformer; the utility model relates to the technical field of circuit teaching equipment, and has the beneficial effects that the problems that a learner cannot experience an electric shock by himself or herself, immersion teaching cannot be clearly carried out on different electric shock modes, teaching display cannot be carried out on all angles in all directions during teaching, and the teaching effect is poor in the existing safe electricity utilization teaching are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit teaching equipment, in particular to a safe electricity use teaching board. Background Art

[0002] Safe electricity use teaching refers to the process of imparting and cultivating students' knowledge and skills in safe electricity use through teaching activities and methods. It involves electrical safety awareness, correct use of electrical equipment, electrical accident prevention and emergency handling, etc. The goal is to enable students to understand and master the basic knowledge of safe electricity use, and have the ability to use electrical equipment correctly, prevent electrical accidents and respond to emergencies. The existing safe electricity use teaching cannot enable learners to experience electric shock firsthand, cannot clearly conduct immersive teaching of different ways of electric shock, and cannot conduct comprehensive teaching demonstrations from all angles during teaching, resulting in poor teaching results. Utility Model Content

[0003] To achieve the above purpose, the utility model is implemented through the following technical solutions: a safe electricity teaching board, comprising: a teaching board, on which an adjustable electric shock demonstration structure is installed;

[0004] The adjustable electric shock demonstration structure includes: a three-phase power supply plug, a safety transformer, a power supply switch, an experience power supply switch, two pairs of circuit output heads and an adjustable fixing component;

[0005] The three-phase power supply plug is installed on the teaching board, the safety transformer is installed in the upper left corner of the teaching board, the three-phase power supply plug is installed on the safety transformer, the power supply switch is installed on the right side of the safety transformer, the power supply switch is connected to the safety transformer, the experience power supply switch is installed below the safety transformer, two pairs of circuit output heads are installed on the experience power supply switch, and the adjustment and fixing components are installed on the rear wall of the teaching board.

[0006] Preferably, a data display screen is provided on the safety transformer.

[0007] Preferably, the teaching plate is a galvanized plate.

[0008] Preferably, a transparent acrylic plate is attached to the front wall of the teaching board.

[0009] Preferably, a plywood is attached to the rear wall of the teaching board.

[0010] Preferably, the adjustment and fixing assembly comprises: a pair of mounting hinges, a support frame, a pair of adjustment slots, a pair of rotating hinges, an adjustment frame and a locking screw;

[0011] A pair of mounting hinges are mounted on the rear wall of the plywood, a support frame is mounted on the pair of mounting hinges, a pair of adjustment slots are opened on the support frame, a pair of rotating hinges are mounted below the pair of mounting hinges, one end of the adjusting frame is mounted on the pair of rotating hinges, the other end of the adjusting frame is mounted on the support frame, and a locking screw passes through a pair of adjustment slots and is mounted on the adjusting frame.

[0012] Beneficial Effects

[0013] The utility model provides a teaching board for safe use of electricity, which has the following beneficial effects: this scheme uses an adjustable electric shock demonstration structure, which can enable learners to personally experience different electric shock situations through adjusting settings, and can more deeply learn and understand the knowledge of safe use of electricity; at the same time, it can be adjusted and fixed, so that the teaching equipment can be erected or hung to ensure the teaching effect, and solves the problems that the existing safe use of electricity teaching cannot enable learners to personally experience electric shock, cannot clearly conduct immersive teaching of different electric shock methods, cannot conduct comprehensive teaching demonstrations from all angles during teaching, and the teaching effect is poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the safe electricity teaching board of the utility model.

[0015] Figure 2 The utility model is a schematic diagram of the cross-sectional structure of the teaching board of the safe use of electricity described in the utility model when viewed from above.

[0016] Figure 3 It is a side view of the unfolded structure of the safe electricity teaching board of the utility model.

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the support frame of the safe electricity teaching board described in the utility model.

[0018] In the figure: 1-teaching board; 2-three-phase power supply plug; 3-safety transformer; 4-power switch; 5-experience power switch; 6-circuit output head; 7-data display screen; 8-transparent acrylic board; 9-plywood; 10-installation hinge; 11-support frame; 12-adjustment slot; 13-rotating hinge; 14-adjustment frame; 15-locking screw. DETAILED DESCRIPTION

[0019] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0020] Example: See Figure 1-4When using the adjustable electric shock demonstration structure, connect the three-phase power supply plug 2 to the external power grid to power the teaching equipment. The safety transformer 3 is used to adjust the control power supply voltage to keep the teaching equipment at a safe voltage of 12V to ensure safety during the teaching experience. Adjust the power switch 4 to turn on the equipment. By adjusting the experience power switch 5, adjust the switch of the circuit output head 6 to experience different electric shock methods. According to opening different circuit output heads 6, multiple modes of experience are performed. The experience modes are: 1. One hand touches the live wire, and the electric shock is caused by the foot and the ground; 2. One hand touches the live wire, and it is safe not to touch the foot and the ground (the feet are insulated); 3. Both hands touch the live wire. 1. Electric shock by touching the live wire and the neutral wire respectively (feet standing on the ground or insulated); 2. Electric shock by touching a leaking device (connected to the live wire) with one hand (such as a motor) through the foot and the ground; 3. Electric shock by step voltage; When conducting electric shock experience teaching, open the locking screw 15 to move the position of the adjustment frame 14 in the adjustment slot 12 and rotate the angle of the support frame 11 by installing the hinge seat 10 to adjust the support angle of the support frame 11. After the adjustment is completed, lock the locking screw 15, and support the teaching board 1 through the support frame 11 so that it can stand up for teaching. At the same time, it can be hung on the wall for display and teaching through the fixed hooks installed on the side wall to ensure the teaching effect.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Safe electricity teaching board, including: The teaching board (1) is characterized in that an adjustable electric shock demonstration structure is installed on the teaching board (1); The adjustable electric shock demonstration structure comprises: a three-phase power supply plug (2), a safety transformer (3), a power supply switch (4), an experience power supply switch (5), two pairs of circuit output heads (6) and an adjustable fixing component; The three-phase power supply plug (2) is installed on the teaching board (1), the safety transformer (3) is installed at the upper left corner of the teaching board (1), the three-phase power supply plug (2) is installed on the safety transformer (3), the power supply switch (4) is installed on the right side of the safety transformer (3), the power supply switch (4) is connected to the safety transformer (3), the experience power supply switch (5) is installed below the safety transformer (3), two pairs of circuit output heads (6) are installed on the experience power supply switch (5), and the adjustment and fixing assembly is installed on the rear wall of the teaching board (1).

2. The safe electricity teaching board according to claim 1, characterized in that: A data display screen (7) is provided on the safety transformer (3).

3. The safe electricity teaching board according to claim 1, characterized in that: The teaching plate (1) is a galvanized plate.

4. The safe electricity teaching board according to claim 1, characterized in that: A transparent acrylic plate (8) is attached to the front wall of the teaching board (1).

5. The safe electricity teaching board according to claim 1, characterized in that: A plywood (9) is attached to the rear wall surface of the teaching board (1).

6. The safe electricity use teaching board according to claim 5, characterized in that: The adjustment and fixing assembly comprises: a pair of mounting hinges (10), a support frame (11), a pair of adjustment slots (12), a pair of rotating hinges (13), an adjustment frame (14) and a locking screw (15); A pair of mounting hinge seats (10) are mounted on the rear wall surface of the plywood (9), a support frame (11) is mounted on the pair of mounting hinge seats (10), a pair of adjustment slots (12) are arranged on the support frame (11), a pair of rotary hinge seats (13) are mounted below the pair of mounting hinge seats (10), one end of an adjustment frame (14) is mounted on the pair of rotary hinge seats (13), the other end of the adjustment frame (14) is mounted on the support frame (11), and a locking screw (15) passes through the pair of adjustment slots (12) and is mounted on the adjustment frame (14).

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