Six-in-one pneumatic energy conversion instrument

Abstract

This utility model discloses a pneumatic energy conversion six-in-one instrument, belonging to the field of teaching instruments. The instrument includes a gas cylinder assembly and six independent functional modules. The gas cylinder assembly consists of a pressure-resistant tank, dual pressure gauges, valves, air pipes, and quick connectors, providing a safe and controllable gas source. The six modules connect to the gas source via quick interfaces and are used to demonstrate six energy conversion processes: kinetic energy → internal energy, internal energy → sound energy, internal energy → electrical energy, internal energy → continuous kinetic energy, internal energy → explosive kinetic energy, and internal energy → potential energy. This utility model adopts a modular design, has a high degree of integration, provides rapid and intuitive conversion demonstrations with rich phenomena, and offers good safety. It effectively solves the problems of abstract teaching and limited demonstrations in traditional energy teaching, and is particularly suitable for teaching the elementary school science lesson "Energy Conversion" and related unit knowledge.

Description

Technical Field

[0001] This utility model relates to the field of teaching instrument technology, and in particular to a pneumatic multifunctional teaching instrument for demonstrating the principle of energy conversion in science courses. Background Technology

[0002] In elementary science education, energy conversion is an abstract yet crucial concept. Traditional teaching methods often rely on pictures, animations, or single-function teaching aids for demonstration, which suffers from problems such as insufficient intuitiveness, limited demonstration phenomena, and low student participation. While some energy conversion teaching aids exist, they are often fragmented in function, cumbersome to operate, and unable to efficiently, continuously, and comparatively demonstrate multiple forms of energy conversion within a single system. Furthermore, safety design is often neglected. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a pneumatic energy conversion six-in-one instrument that integrates multiple energy conversion demonstrations, is safe to operate, provides intuitive phenomena, and is convenient for teaching. To achieve the above objective, this utility model adopts the following technical solution: A pneumatic energy conversion six-in-one instrument, mainly comprising a gas storage cylinder assembly and six independent functional modules connected to it via quick interfaces (…). Figure 1 : 100 Kinetic energy to internal energy / thermal energy module; 200 Internal energy to acoustic energy module; 300 Internal energy to electrical energy / light energy module; 400 Internal energy to continuous kinetic energy module; 500 Internal energy to explosive kinetic energy module; 600 Internal energy to potential energy module; 700 Gas storage cylinder total; 800 Electrical / gas circuit.

[0004] The six functional modules are as follows: 1. Kinetic energy to internal energy / thermal energy conversion module ( Figure 2 101 Air pump; 102 Temperature sensor; 103 Display screen): Includes an air pump and two temperature sensors, one fixed to the outer wall of the air pump and the other to the outer wall of the air cylinder. The sensors are connected to a digital display screen to show in real time the temperature rise caused by the conversion of mechanical energy into internal energy during compression. 2. Internal energy to acoustic energy conversion module ( Figure 2 201 Car Air Horn: Includes two car air horns fixed side by side. By inputting gas at different pressures, it demonstrates how compressed air drives a diaphragm to vibrate and produce sounds of varying loudness. 3. Internal Energy to Electrical / Photovoltaic Module ( Figure 2 301 Nozzle; 302 Turbine Fan; 303 LED Light Set): Includes a nozzle, a miniature turbine fan (CPU fan), and a set of LED lights. Airflow drives the fan to rotate, and its internal generator produces current to light the LED lights, demonstrating the conversion chain of air pressure energy → mechanical energy → electrical energy → light energy. 4. Internal Energy to Continuous Kinetic Energy Module ( Figure 3Components: 401 Nozzle; 402 Paddlewheel; 403 Rotating Shaft; 404 Lifting Arm; 405 Pulley Block; 406 Counterweight: Includes an airflow-driven paddlewheel, pulley block, lifting arm, and a liftable counterweight. It converts the energy of compressed air into continuous, stable mechanical energy for lifting heavy objects. 5. Internal Energy to Explosive Kinetic Energy Module ( Figure 3 Components: 501. Cola bottle; 502. Rubber stopper; 503. String; 504. Gas nozzle; 505. Alcohol spray bottle): Includes a 2L cola bottle, rubber stopper, and alcohol spray bottle. After injecting a small amount of alcohol droplets into the bottle, high-pressure gas is introduced, causing the rubber stopper to eject instantly. Simultaneously, the gas inside the bottle expands, causing a sudden drop in temperature and forming white mist, vividly demonstrating the physical process of gas doing work and its internal energy decreasing. 6. Internal energy to potential energy conversion module (( Figure 3 Components: 601. Low-level water bottle; 602. High-level water bottle; 603. Transparent flexible tube; 604. Air nozzle; 605. Support): Includes two 1.5L mineral water bottles, a transparent flexible tube, and colored water. Compressed air forces water from the low-level bottle through the flexible tube into the high-level bottle, converting air pressure energy into the gravitational potential energy of the water, simulating the working principle of a pumped-storage hydroelectric power station.

[0005] The gas cylinder assembly is converted from a recycled fire extinguisher canister. Figure 2 Components: 701. Fire extinguisher tank; 702. Top pressure gauge / internal pressure; 703. Side pressure gauge / output pressure; 704. Adjusting valve / output pressure; 705. Control valve; 706. Quick connector / output; 707. Air hose. The tank is equipped with a first pressure gauge (range 0-12 kg / cm²) on the top to display the internal pressure, and a second pressure gauge (range 0-12 kg / cm²) on the side to display and adjust the output pressure, as well as a control valve. The output air hose is routed under the table and connects to each module via quick connectors. The tank is designed to withstand a pressure of 12 kg / cm², but the working pressure is strictly limited to below 6 kg / cm², providing double safety protection.

[0006] The electrical / pneumatic circuit ( Figure 4 801. Kinetic Energy → Internal Energy Module Circuit; 802. Internal Energy → Acoustic Energy Module Air Circuit; 803. Internal Energy → Electrical / Light Energy Module Air Circuit; 804. Internal Energy → Continuous Kinetic Energy Module Air Circuit; 805. Internal Energy → Explosive Kinetic Energy Module Air Circuit; 806. Internal Energy → Potential Energy Module Air Circuit; 807. Air Circuit Output Main Pipe and Quick Connector: The electrical / air circuits are all routed under the table. The circuit is connected to the display of Module 1, and the main air pipe is connected to the branch air circuits of each module through quick connectors.

[0007] The beneficial effects of this utility model are as follows: 1. Highly integrated functions: One system can demonstrate six different forms of energy conversion, providing rich content, strong comparison, and high teaching efficiency. 2. Intuitive and visual phenomena: Abstract physical concepts are transformed into audible, visible, and perceptible phenomena such as sound, light, temperature changes, and object movement, making them easy for students to understand. 3. Safe and convenient operation: Modular design and quick connectors allow for rapid switching between demonstration items (≤1 minute); the gas cylinder has dual pressure gauge monitoring and sufficient safety pressure margin to ensure operational safety. 4. Environmentally friendly materials and simple structure: Extensive use of recycled materials (such as fire extinguisher canisters, CPU fans, mineral water bottles, etc.) results in low cost and ease of manufacture, maintenance, and promotion. Attached Figure Description

[0008] Figure 1 : Schematic diagram of the overall structure of the six-function pneumatic energy conversion instrument (showing the six functional modules, gas storage cylinder assembly and electrical / pneumatic circuit layout). Figure 2 Component structure diagram of the kinetic energy to internal energy / thermal energy module, internal energy to acoustic energy module, internal energy to electrical energy / light energy module and gas storage cylinder assembly. Figure 3 Component structure diagram of the internal energy to continuous kinetic energy module, the internal energy to explosive kinetic energy module, and the internal energy to potential energy module. Figure 4 : Electrical / pneumatic circuit layout and connection component diagram.

[0009] Detailed Implementation: The core of the pneumatic energy conversion six-purpose instrument of this utility model is a gas storage cylinder assembly. Module 1 connects the air pump and the gas storage cylinder to two displays respectively via wires; the assembly uses a recycled fire extinguisher canister (701) as the gas source storage device. A pressure gauge (702) is installed on the top of the canister to display the pressure inside the cylinder, and a pressure gauge (703) and a control valve (704) are installed on the side to display and adjust the output pressure. The output end is connected to the main air pipe (107) via a quick connector (706). The main air pipe runs from under the display table and branches to five quick interface points. Each of the five functional modules is connected to the corresponding interface on the table via its own quick connector. During the demonstration, module 1 (101) is used to inflate the gas storage cylinder first, and students can observe the pressure rise and the temperature change displayed on the temperature sensor display (103). Then, module 2 is disconnected, and the other modules are connected in sequence. For example, when module 2 (201) is connected, the sound of the air horn can be heard when the valve is opened, and the sound intensity can be changed by adjusting the valve opening. Connecting module 3 (301, 302, 303), the airflow from nozzle (301) drives fan (302) to rotate and generate electricity, illuminating LED light (303). Connecting module 4 (401, 402, 403, 404, 405), the process of dyeing water being pressed into high-level bottle (502) can be observed. Before connecting module 5 (501, 502, 503, 504), alcohol (505) must be sprayed in first, the stopper (502) must be tightened, and then gas can be added to observe the burst phenomenon. Connecting module 6 (601, 602, 603, 604, 605, 606), the counterweight (606) can be observed being lifted at a uniform speed. During operation, pay attention to the output pressure gauge (703) to ensure that the pressure does not exceed the safe working range of 6 kg / cm². All modules are fixed on a small display stand, with a stable structure and safe and reliable operation. The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pneumatic energy conversion six-purpose instrument, characterized in that, include: A gas cylinder assembly includes a rechargeable fire extinguisher canister, dual pressure gauges, valves, a gas hose, and quick couplings; Six independent functional modules, one of which is connected to the gas cylinder and air pump via wires, and five of which are connected to the gas cylinder assembly via quick connectors, are used to demonstrate different types of energy conversion; The six functional modules are as follows: a) Kinetic energy to internal energy conversion module, including air pump and temperature sensor; b) Internal energy to sound energy conversion module, including car air horn; c) Internal energy to electrical energy conversion module, including nozzles, turbine fan and LED light assembly; d) Internal energy to continuous kinetic energy conversion module, including paddle wheel, counterweight, pulley block and lifting boom; e) Internal energy to explosive kinetic energy module, including a cola bottle, rubber stopper and alcohol spray bottle; f) Internal energy to potential energy module, including air nozzle, transparent hose, dyed water and double bottle structure.

2. The pneumatic energy conversion six-purpose instrument according to claim 1, characterized in that, The gas cylinder assembly is equipped with dual pressure gauges on the top and side of the tank body, which are used to monitor the internal pressure and output pressure of the cylinder, respectively.

3. The pneumatic energy conversion six-purpose instrument according to claim 1, characterized in that, The gas cylinder assembly's output gas pipe is arranged under the table and connected to each module via quick connectors.

4. The pneumatic energy conversion six-purpose instrument according to claim 1, characterized in that, In the kinetic energy to internal energy conversion module, the temperature sensor is fixed to the outer wall of the air pump and the air storage bottle by an elastic band, which can be flexibly removed and connected to the display screen.

5. The pneumatic energy conversion six-purpose instrument according to claim 1, characterized in that, In the internal energy to potential energy module, two mineral water bottles are connected by a transparent hose, with one bottle placed at a high position to simulate the water pumping and energy storage process.

6. The pneumatic energy conversion six-purpose instrument according to claim 1, characterized in that, In the internal energy conversion and explosive kinetic energy module, the bottom of the cola bottle is equipped with an air nozzle, the bottle mouth is sealed with a rubber stopper, and a thin rope is used to prevent the stopper from splashing.

7. The pneumatic energy conversion six-purpose instrument according to claim 1, characterized in that, In the internal energy to continuous kinetic energy module, the bottom of the module is supported by a bearing and can rotate 360 ​​degrees. The nozzle blows the paddle wheel, which drives the wheel shaft to rotate. The rope suspends the counterweight and is connected to the paddle wheel shaft through a pulley system to realize the lifting and lowering of the heavy object.

8. The pneumatic energy conversion six-purpose instrument according to claim 1, characterized in that, All modules are fixed to an independent display stand, which is then secured to the main desktop with screws.

9. The pneumatic energy conversion six-purpose instrument according to claim 1, characterized in that, The maximum working pressure of the gas cylinder assembly shall not exceed 6 kg / cm², and the pressure resistance margin of the tank body shall not be less than 12 kg / cm².

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