Oil gauge physics teaching demonstrator

Abstract

The utility model provides an oil gauge physics teaching demonstrator comprising an oiling machine which is provided with a first oil outlet, and the first oil outlet is connected with an oil gun through a pipeline; the oil storage tank is arranged above the oiling machine; a second oil outlet is formed in the bottom of one side of the oil storage tank, an oil inlet is formed in the same side of the oiling machine and the oil storage tank, and a discharge valve is connected between the second oil outlet and the oil inlet through a pipeline; an arc-shaped resistance wire coil, an indicating rod and an oil gauge are arranged on the front surface of the demonstration panel; an indicating arrow is arranged at the front end of the indicating rod, and a metal slip sheet is arranged in the indicating arrow and is connected with the resistance wire coil; the rear end of the indicating rod is connected with a supporting rod, one end, far away from the indicating rod, of the supporting rod is connected with a floating ball, and the floating ball is arranged in the oil storage tank. The oil gauge teaching demonstrator integrates the functions of oil loading, oil unloading and display, and is more visual in operation and observation.

Description

Technical Field

[0001] This utility model belongs to the field of teaching aids technology, specifically relating to a physics teaching demonstrator for an oil gauge. Background Technology

[0002] In junior high school physics teaching, the principle of the fuel gauge involves knowledge of current, resistance, Ohm's law, buoyancy, and levers in electricity, which requires experiments to help students understand and master.

[0003] However, existing teaching aids for demonstrating oil gauges have the following shortcomings in actual use and operation: 1. The oil filling process involves the teacher pouring the oil into the tank, which requires the teacher to explain to the students, adding to the difficulty. Furthermore, the speed of oil filling directly affects the experimental results. 2. Existing oil gauges use a metal indicator rod that directly contacts the resistance wire coil. Over time, the metal indicator rod is prone to rusting and damage, making maintenance inconvenient. 3. Existing oil gauge teaching aids have a complex and unintuitive structure, making them difficult for students to observe, especially those sitting in the back rows who need to stand up to observe the results, thus affecting their learning interest. Those skilled in the art urgently need to solve these technical problems. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a physical teaching demonstrator for oil level gauges, which integrates oil loading, unloading and display, making it easy to operate and observe.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A physics demonstration device for fuel gauges, including a support base;

[0007] The fuel dispenser is mounted on a support base and has a first oil outlet, which is connected to a fuel nozzle via a pipeline.

[0008] An oil storage tank is located above the fuel dispenser and is a transparent barrel with an opening at the top. The fuel nozzle is used to inject oil into the oil storage tank.

[0009] A second oil outlet is provided at the bottom of one side of the oil storage tank, and an oil inlet is provided on the same side of the fuel dispenser and the oil storage tank. The oil inlet is connected to the second oil outlet.

[0010] The demonstration panel is vertically mounted on the support base, and its front surface is provided with an arc-shaped resistance wire coil, an indicator rod and an oil level gauge;

[0011] A fulcrum is provided in the middle of the indicator rod, and an indicator arrow is provided at the front end of the indicator rod. A metal slider is installed inside the indicator arrow. The metal slider is connected to the resistance wire coil and can slide on its surface.

[0012] A support rod is connected to the rear end of the indicator rod, and a float is connected to the end of the support rod away from the indicator rod. The float is placed inside the oil tank.

[0013] It also includes a switch, a resistor, and a power supply. A wire is connected to the metal slider, and the other end of the wire is connected to one pole of the power supply through a resistor. One end of the resistance wire coil is connected to the other pole of the power supply through a wire, a switch, and an oil gauge.

[0014] In a preferred embodiment of this utility model, a hydraulic pump is connected to the first oil outlet, and the hydraulic pump is connected to the refueling gun through a pipeline.

[0015] In a preferred embodiment of the present invention, a housing is provided on the outside of the fuel dispenser, the housing is mounted on a support base, the fuel tank is mounted on the housing, and a hook for hanging the fuel nozzle is formed on the housing.

[0016] In a preferred embodiment of this utility model, the switch, resistor and power supply are all arranged on the demonstration panel.

[0017] In a preferred embodiment of this invention, the resistor is configured as a bar indicator light.

[0018] In a preferred embodiment of this utility model, the resistance wire coil and the oil gauge are mounted side by side above the demonstration panel.

[0019] In a preferred embodiment of this utility model, both the indicator rod and the support rod are made of acrylic material.

[0020] In a preferred embodiment of this utility model, the power supply is configured as three 1.5V batteries connected in series.

[0021] In a preferred embodiment of this utility model, a drain valve is connected between the second oil outlet and the oil inlet via a pipeline.

[0022] In a preferred embodiment of this utility model, the demonstration panel is configured as a magnetic suction plate, and the oil gauge is attached to the demonstration panel;

[0023] in,

[0024] The fuel gauge adopts a split structure, including a fuel level display component and an indicator component;

[0025] It also includes a current display component, which is positioned directly below the fuel level display component or the current display component.

[0026] Beneficial effects:

[0027] This utility model is a physical teaching demonstrator for fuel gauges. It is designed to simulate the working state of a real refueling machine, ensuring the stable flow and controllability of the fuel, thereby guaranteeing teaching quality and increasing the fun and realism of the teaching.

[0028] This utility model integrates the structure of each electronic control component into one area of ​​the demonstration panel, making operation and observation more intuitive, and also facilitating the arrangement of wires.

[0029] This utility model designs an indicator rod made of acrylic material, and installs a metal slider on the inside of the indicator arrow at the front end of the indicator rod, which is durable and easy to clean and maintain;

[0030] This utility model relates to a physics teaching demonstrator for fuel gauges, which integrates fuel filling, unloading, and display. The fuel dispenser is easy to operate, and the movement of the float and indicator rod can be observed through the transparent fuel tank. Combined with the changes in the fuel gauge pointer, students can intuitively understand the working principle of the fuel gauge. Attached Figure Description

[0031] Figure 1 A three-dimensional structural diagram of a physics teaching demonstrator for an oil meter provided by this utility model;

[0032] Figure 2 The main view of the fuel gauge physics teaching demonstrator provided by this utility model Figure 1 ;

[0033] Figure 3 A partial structural schematic diagram of a physics teaching demonstrator for a fuel gauge provided by this utility model;

[0034] Figure 4 The main view of the fuel gauge physics teaching demonstrator provided by this utility model Figure 2 .

[0035] In the diagram: 1. Support base;

[0036] 2 fuel dispensers;

[0037] 3. Gas pump nozzles;

[0038] 4. Oil reservoir;

[0039] 5. Relief valve;

[0040] 6. Demonstration panel;

[0041] 7. Resistance wire coil;

[0042] 8 indicator rods;

[0043] 9. Fuel gauge;

[0044] 10 support rods;

[0045] 11 floats;

[0046] 12 switches;

[0047] 13 resistors;

[0048] 14 power supplies;

[0049] 15 hydraulic pumps;

[0050] 16 Current display components. Detailed Implementation

[0051] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0052] like Figure 1-3 As shown, the present invention provides a physics teaching demonstrator for an oil meter, including a support base 1;

[0053] The fuel dispenser 2 is installed on the support base 1 and has a first oil outlet, which is connected to the fuel nozzle 3 through a pipeline.

[0054] The oil storage tank 4 is arranged above the fuel dispenser 2. It is a transparent barrel with an opening at the top. The fuel nozzle 3 is used to inject oil into the oil storage tank 4.

[0055] A second oil outlet is provided at the bottom of one side of the oil storage tank 4, and an oil inlet is provided on the same side of the fuel dispenser 2 and the oil storage tank 4. The oil inlet is connected to the second oil outlet.

[0056] The demonstration panel 6 is vertically mounted on the support base 1, and an arc-shaped resistance wire coil 7, an indicator rod 8 and an oil gauge 9 are provided on its front surface;

[0057] A fulcrum is provided in the middle of the indicator rod 8. An indicator arrow is provided at the front end of the indicator rod 8. A metal slider is installed inside the indicator arrow. The metal slider is connected to the resistance wire coil 7 and can slide on its surface. A support rod 10 is connected to the rear end of the indicator rod 8. A float ball 11 is connected to the end of the support rod 10 away from the indicator rod 8. The float ball 11 is placed in the oil storage tank 4.

[0058] It also includes a switch 12, a resistor 13 and a power supply 14. A wire is connected to the metal slider. The other end of the wire is connected to one pole of the power supply 14 through the resistor 13. One end of the resistance wire coil 7 is connected to the other pole of the power supply 14 through the wire, the switch 12 and the fuel gauge 9.

[0059] The working principle and beneficial effects of the above embodiments are as follows:

[0060] This utility model's fuel gauge teaching demonstrator injects fuel into a storage tank 4 via a fuel nozzle 3. The storage tank 4 is transparent, facilitating observation of the fuel injection and level changes. A float 11 is placed inside the storage tank 4. As fuel is injected, the fuel level rises, and the float 11 rises accordingly. The float 11 is connected to the rear end of an indicator rod 8 via a support rod 10. The rise of the float 11 causes the indicator rod 8 to rotate around a fulcrum. A second fuel outlet is provided at the bottom of one side of the storage tank 4. A plug or drain valve 5 is connected to the fuel inlet of the fuel dispenser 2 via a pipeline. When the plug or drain valve 5 is opened, fuel flows into the fuel dispenser 2, the fuel level in the storage tank 4 drops, and the float 11 falls accordingly, causing the indicator rod 8 to rotate in the opposite direction around the fulcrum. The drain valve 5 has the function of ensuring that the fuel in the storage tank 4 flows into the fuel dispenser 2 at a uniform speed.

[0061] As the indicator lever 8 rotates, the metal slider slides on the resistance wire coil 7, changing the resistance value of the resistance wire coil 7. When the metal slider slides on the resistance wire coil 7, the change in resistance value causes a change in the current passing through the fuel gauge 9, thereby displaying different fuel level readings on the fuel gauge 9.

[0062] 1. When the refueling nozzle 3 fills the liquid storage tank 4 with oil, the oil level rises, the metal slide moves downward, and the reading of the oil level gauge 9 increases.

[0063] 2. When the relief valve 5 is opened, the oil level drops, the metal slide moves upward, and the reading of the oil gauge 9 decreases.

[0064] Through the movement of the transparent oil tank 4, the observable float 11, and the indicator rod 8, students can intuitively understand the working principle of the fuel gauge. Through practical demonstrations, students can combine theoretical knowledge with practical operation to deepen their understanding of the working principle of the fuel gauge.

[0065] In one embodiment,

[0066] A hydraulic pump 15 is connected to the first oil outlet, and the hydraulic pump 15 is connected to the oil gun 3 through a pipeline.

[0067] The hydraulic pump 15 is connected to the fuel nozzle 3 through the first oil outlet. It is responsible for drawing oil from the oil storage tank 4 and pressurizing and delivering it to the fuel nozzle 3. The operation of the hydraulic pump 15 makes the oil flow more stable and controllable, which can simulate the working state of a real fuel dispenser and increase the fun and realism of teaching.

[0068] In one embodiment,

[0069] The fuel dispenser 2 is covered by a housing, which is mounted on a support base 1. The fuel tank 4 is mounted on the housing, and a hook for hanging the fuel nozzle 3 is formed on the housing.

[0070] The housing encloses the internal components, such as the fuel dispenser 2, to protect them and prevent accidental contact. The fuel tank 4 is mounted on the housing, which provides additional support and protection for it. Hooks for hanging the fuel nozzle 3 are formed on the housing, facilitating the storage and retrieval of the fuel nozzle 3 and reducing safety hazards when the fuel nozzle 3 is not in use. The design of the housing makes the entire demonstrator look cleaner and more aesthetically pleasing, enhancing the overall visual appeal of the teaching environment.

[0071] In one embodiment,

[0072] The aforementioned switch 12, resistor 13, and power supply 14 are all arranged on the demonstration panel 6, which integrates the control and display of the entire demonstrator into one area, making it convenient for operation and observation, and also convenient for the arrangement of wires.

[0073] In one embodiment,

[0074] The aforementioned resistor 13 is set as a bar indicator light to more intuitively show whether the circuit is in a conducting or non-conducting state.

[0075] In one embodiment,

[0076] The aforementioned resistance wire coil 7 and oil level gauge 9 are mounted side by side above the demonstration panel 6, allowing students to observe two key components simultaneously and deepen their understanding of the relationship between oil level changes and resistance changes. The oil level gauge 9 displays a digital or analog reading of the oil level, while the resistance wire coil 7 reflects the amount of oil through the position change of the metal slider. The metal slider slides on the resistance wire coil 7, and its position change directly affects the reading of the oil level gauge 9. Students can understand the change in oil level by observing the position of the metal slider.

[0077] In one embodiment,

[0078] Both the indicator rod 8 and the support rod 10 mentioned above are made of acrylic material, which is durable and easy to clean and maintain.

[0079] In one embodiment,

[0080] The power supply 14 is configured with three 1.5V batteries connected in series. A stable power supply can ensure the reliability of the demonstrator during the teaching process and improve the teaching effect.

[0081] In one embodiment,

[0082] like Figure 4 As shown, the demonstration panel 6 is set as a magnetic suction plate, and the oil level gauge 9 is attached to the demonstration panel 6.

[0083] in,

[0084] The fuel gauge 9 adopts a split structure, including a fuel level display component and an indicator component.

[0085] It also includes a current display component 16, which is located directly below the fuel level display component or the current display component. Depending on the teaching requirements, the indicator component can be switched between the fuel level display component and the current display component.

[0086] The change in current in the test circuit reflects the change in the amount of oil in the oil tank 4; using Ohm's law, that is, the relationship between current, voltage and resistance (I=U / R), the change in the amount of oil in the tank can be indirectly reflected by measuring the change in current in the circuit; at the same time, students can understand the relationship between the change in current and the amount of oil by observing the changes in the values ​​of the oil level display component and the current display component.

[0087] In summary:

[0088] This utility model relates to a physical teaching demonstrator for fuel gauges. It is designed to simulate the working state of a real refueling machine, ensuring the stable flow and controllability of the fuel, thereby guaranteeing teaching quality and increasing the interest and realism of the teaching.

[0089] This utility model integrates the structure of each electronic control component into one area of ​​the demonstration panel, making operation and observation more intuitive, and also facilitating the arrangement of wires.

[0090] This utility model designs an indicator rod made of acrylic material, and installs a metal slider on the inside of the indicator arrow at the front end of the indicator rod, which is durable and easy to clean and maintain;

[0091] This utility model relates to a physics teaching demonstrator for fuel gauges, which integrates fuel filling, unloading, and display. The fuel dispenser is easy to operate, and the movement of the float and indicator rod can be observed through the transparent fuel tank. Combined with the changes in the fuel gauge pointer, students can intuitively understand the working principle of the fuel gauge.

[0092] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The terms "front," "back," "left," and "right" used in the text are not specific and are mainly for more intuitive illustration of the technical solution, and do not constitute a limitation. Those skilled in the art should understand that the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made according to the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. An oil gauge physics demonstration apparatus, characterized by: It comprises a supporting base (1); A refueling machine (2) is installed on the supporting base (1), which is provided with a first oil outlet, and a refueling gun (3) is connected to the first oil outlet through a pipeline; An oil storage tank (4) is arranged above the refueling machine (2), which is provided as a transparent barrel with an open upper end, and the refueling gun (3) is used to inject oil into the oil storage tank (4); A second oil outlet is formed in the bottom of one side of the oil storage tank (4), and an oil inlet is formed in the same side of the refueling machine (2) and the oil storage tank (4), and the oil inlet is in communication with the second oil outlet; A demonstration panel (6) is vertically installed on the supporting base (1), and an arc-shaped resistance wire coil (7), an indicating rod (8) and an oil gauge (9) are arranged on the front surface of the demonstration panel (6); A fulcrum is arranged in the middle of the indicating rod (8), and an indicating arrow is arranged at the front end of the indicating rod (8), and a metal sliding sheet is arranged on the inner side of the indicating arrow, which is connected with the resistance wire coil (7) and can slide on the surface of the resistance wire coil (7); A supporting rod (10) is connected to the rear end of the indicating rod (8), and a float ball (11) is connected to the end of the supporting rod (10) away from the indicating rod (8), and the float ball (11) is arranged in the oil storage tank (4); A switch (12), a resistor (13) and a power supply (14) are further arranged, a wire is connected to the metal sliding sheet, the other end of the wire is connected to one pole of the power supply (14) through the resistor (13), and one end of the resistance wire coil (7) is connected to the other pole of the power supply (14) through the wire, the switch (12) and the oil gauge (9).

2. The physical demonstration device for teaching fuel gauge according to claim 1, wherein: A hydraulic pump (15) is connected to the first oil outlet, and the hydraulic pump (15) is connected to the refueling gun (3) through a pipeline.

3. The physical demonstration device for teaching fuel gauges of claim 1, wherein: A shell is arranged on the outer cover of the refueling machine (2), the shell is installed on the supporting base (1), the oil storage tank (4) is arranged on the shell, and a hook for hanging the refueling gun (3) is formed on the shell.

4. The physical demonstration device for teaching fuel gauge according to claim 1, wherein: The switch (12), the resistor (13) and the power supply (14) are arranged on the demonstration panel (6).

5. The physical demonstration device for teaching fuel gauges of claim 1, wherein: The resistor (13) is provided as a strip-shaped indicating lamp.

6. The physical demonstration device for teaching fuel gauges of claim 1, wherein: The resistance wire coil (7) and the oil gauge (9) are arranged above the demonstration panel (6) in parallel.

7. The physical demonstration device for teaching fuel gauges of claim 1, wherein: The indicating rod (8) and the supporting rod (10) are made of acrylic material.

8. The physical demonstration device for teaching oil gauges of claim 1, wherein: The power supply (14) is provided as three groups of 1.5V batteries connected in series.

9. The physical demonstration device for teaching oil gauges of claim 1, wherein: A flow relief valve (5) is connected between the second oil outlet and the oil inlet through a pipeline.

10. The physical demonstration device for teaching fuel gauges of claim 1, wherein: The demonstration panel (6) is provided as a magnetic panel, and the oil gauge (9) is adsorbed on the demonstration panel (6). The oil gauge (9) is provided as a split structure, which comprises an oil display component and an indicating component. A current display component (16) is further arranged, and the indicating component is arranged directly below the oil display component or the current display component. ​

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