Adjustable air source equipment

Abstract

The utility model discloses adjustable air source equipment. The adjustable air source equipment comprises a speed regulating device, a speed regulating switch, a silencer, a main shell and a fan, the speed adjusting device and the fan are both located in the main shell and connected through a wire. The speed regulation switch is connected with the speed regulation device in a clamped mode, and the speed regulation switch is located outside the main shell and used for starting the air source equipment and regulating the air pressure generated by the draught fan; and the silencing device is positioned in the fan. The speed regulating device is matched with the fan for use, so that the air pressure generated by the fan can be flexibly regulated to meet the requirements of different experiments or application scenes on the air pressure, and the air pressure of air source equipment in the prior art is fixed, so that diversified experiment conditions cannot be met.

Description

Technical Field

[0001] The utility model is mainly used for teaching aids and is used in high school physics student experiments: the conservation of momentum when a slider collides on an air track, and is used in cooperation with the air track. Background Art

[0002] In high school physics experiment teaching, an air track is an important experimental device used to demonstrate and verify physical principles such as conservation of momentum and energy conversion. Traditional air track experiments usually require a stable gas source to provide sufficient air flow to suspend the slider on the track and conduct experiments. However, the existing gas source devices on the market often have the following limitations, which to a certain extent affect the experimental effect and teaching convenience.

[0003] Fixed gas pressure: Most existing gas source devices provide a fixed gas pressure and cannot be adjusted according to the specific requirements of the experiment, which limits the application of the gas source device in different experimental scenarios because different experiments may require different gas pressures to achieve ideal experimental effects.

[0004] Lack of compatibility: Existing gas source devices are often only suitable for specific air track systems and cannot be compatible with other teaching instruments or experimental devices. Since separate gas sources need to be configured for different devices, it will increase the equipment cost of the laboratory.

[0005] Inconvenient to carry: During the handling process, since the existing gas source device has no handle, it is easy to cause problems such as injury or equipment damage due to slippery hands or equipment slipping.

[0006] Noise problem: The air inlet holes of the existing gas source device are arranged at the bottom, which may increase the difficulty of the processing process, and during operation, due to the improper number of air inlet holes, it may cause the generated noise to interfere with the teaching environment and affect the attention and learning effect of students. Summary of the Utility Model

[0007] The purpose of the utility model is to provide an adjustable gas source device, which can solve the problem that the existing gas source device is difficult to meet the air pressure requirements of different experiments due to the fixed gas pressure.

[0008] To achieve the above purpose, the utility model provides an adjustable gas source device, including a speed regulation device, a speed regulation switch, a sound insulation device, a main housing and a blower;

[0009] The speed regulation device and the blower are both located inside the main housing and are connected by a wire therebetween; the speed regulation switch is clamped with the speed regulation device, the speed regulation switch is located outside the main housing and is used to turn on the gas source device and adjust the air pressure generated by the blower; the sound insulation device is located inside the blower.

[0010] Further, it also includes a handle which is connected to the main housing.

[0011] Further, the main housing includes an air source upper cover, a pipe, and an air source base; the pipe is a hollow cylinder in the middle, and the air source upper cover and the air source base are respectively snap - connected to the upper and lower ends of the pipe.

[0012] Further, a gas outlet is provided at the top of the air source upper cover, and a plurality of air inlet holes are continuously provided on the side of the air source upper cover.

[0013] Further, a first small hole is provided on the air source upper cover, and the first convex edge on the speed - regulating device passes upward through the first small hole and is snap - connected to the speed - regulating switch.

[0014] Further, a plurality of anti - slip foot pads are provided at the bottom of the air source base.

[0015] Further, the pipe is made of PVC material.

[0016] Further, a wire inlet hole is provided on the base.

[0017] Further, the blower is a hollow cylinder in the middle, the sound - proofing device is a cylinder, and a plurality of long strip - shaped third hole grooves are provided inside. The length of the sound - proofing device is half of that of the blower, and the sound - proofing device is located in the upper half of the blower.

[0018] Further, the sound - proofing device is made of shock - absorbing sponge.

[0019] Compared with the prior art, the present utility model has at least the following technical effects:

[0020] By the combined use of the speed - regulating device and the blower, the present utility model can flexibly adjust the air pressure generated by the blower to meet the air - pressure requirements of different experimental or application scenarios. However, the air - source devices in the prior art often have a fixed gas pressure and cannot meet the diverse experimental conditions.

[0021] Further, the design of the handle makes the present utility model easy to carry and move. At the same time, by being connected and fixed to the main housing, it can enhance the stability of the overall structure.

[0022] Further, the sound - proofing device made of shock - absorbing sponge can effectively reduce the noise generated during the operation of the blower and improve the use environment. In addition, the design of the long strip - shaped third hole grooves in the shock - absorbing sponge can increase the contact area with air, improve the sound - proofing and shock - absorbing effects. At the same time, the layout in the upper half of the blower helps to balance the air flow and pressure inside the blower.

[0023] Furthermore, in the present utility model, a plurality of air inlets are continuously arranged on the side of the air source upper cover. Compared with the prior art in which a plurality of air inlets are arranged around the pipe, the change in the position of the air inlets in the present utility model helps to form a stable air flow and improve the use efficiency of the air source device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 FIG. 6 is a schematic structural diagram of an adjustable air source device in an embodiment;

[0025] Figure 2 FIG. 7 is an exploded view of an adjustable air source device in an embodiment;

[0026] Figure 3 FIG. 8 is an exploded view of the main housing of an adjustable air source device in an embodiment;

[0027] Figure 4 FIG. 9 is a schematic structural diagram of the fan and the silencing device of an adjustable air source device in an embodiment;

[0028] Figure 5 FIG. 10 is a schematic structural diagram of the speed control device and the speed control switch of an adjustable air source device in an embodiment;

[0029] Figure 6 FIG. 11 is a schematic internal structure diagram of the air source upper cover of an adjustable air source device in an embodiment;

[0030] Figure 7 FIG. 12 is a schematic internal structure diagram of the air source base of an adjustable air source device in an embodiment;

[0031] Figure 8 FIG. 13 is a schematic bottom structure diagram of an adjustable air source device in an embodiment.

[0032] Among them, 1. speed control device; 11. first convex edge; 12. second convex edge; 121. first hole slot; 2. speed control switch; 21. second hole slot; 3. silencing device; 31. third hole slot; 4. main housing; 41. air source upper cover; 411. air outlet; 412. air inlet; 413. first small hole; 414. fourth hole slot; 415. fifth hole slot; 42. pipe; 43. air source base; 431. wire inlet; 432. anti-slip foot pad; 433. sixth hole slot; 5. fan; 51. seventh hole slot; 6. handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The following will describe an adjustable air source device of the present utility model in more detail with reference to the schematic diagrams, in which the preferred embodiments of the present utility model are shown. It should be understood that those skilled in the art can modify the present utility model described herein while still achieving the advantageous effects of the present utility model. Therefore, the following description should be understood as a broad guidance for those skilled in the art and not as a limitation to the present utility model.

[0034] For clarity, not all features of the actual embodiments are described. In the following description, well-known functions and structures are not described in detail, because they would obscure the present utility model with unnecessary details. It should be considered that in the development of any actual embodiment, numerous implementation details must be made to achieve the specific goals of the developer, such as changing from one embodiment to another in accordance with the relevant system or commercial limitations. Additionally, it should be considered that such development work may be complex and time-consuming, but it is only routine work for those skilled in the art.

[0035] In the following paragraphs, the present utility model will be described more specifically by way of example with reference to the accompanying drawings. The advantages and features of the present utility model will be clearer according to the following description and the claims. It should be noted that the drawings are all in a very simplified form and use non-precise scales, only for the purpose of conveniently and clearly assisting in explaining the embodiments of the present utility model.

[0036] As Figure 1 - Figure 2 shown, the present utility model provides an adjustable gas source device, including a speed regulation device 1, a speed regulation switch 2, a silencing device 3, a main housing 4, and a fan 5. The speed regulation device 1 and the fan 5 are both located inside the main housing 4. The speed regulation device 1 is connected to the fan 5 through a wire, and is used to control the rotation speed of the fan 5, thereby regulating the air pressure. The speed regulation switch 2 is snap-connected to the speed regulation device 1, and the speed regulation switch 2 is located outside the main housing 4, and is used to turn on the gas source device and regulate the air pressure generated by the fan 5. The silencing device 3 is located inside the fan 5.

[0037] Specifically, as Figure 3 shown, the main housing 4 includes a gas source upper cover 41, a pipe 42, and a gas source base 43. The pipe 42 is a hollow cylinder in the middle. In one example, the pipe 42 is made of PVC material, which is light and durable, and has good insulation performance at the same time. The gas source upper cover 41 and the gas source base 43 are respectively snap-connected to the upper and lower ends of the pipe 42 to form a sealed gas channel.

[0038] In this embodiment, the top of the gas source upper cover 41 is provided with an air outlet 413 for outputting gas. The side of the gas source upper cover 41 is provided with a plurality of air inlet holes 412, and the number and position of the air inlet holes 412 can be determined according to the air volume. The number of the air inlet holes 412 is schematically shown as 9 in the figure. As Figure 7 shown, the gas source base 43 is provided with a wire inlet 431, and the wire inlet 431 is used to enable an external power cord to enter the main housing 4 to be connected to the speed regulation device 1. The design of the wire inlet 431 can ensure the neatness of the power cord and the beauty of the gas source device. Additionally, asFigure 2 or Figure 8 As shown, a plurality of circular anti-slip pads 432 are provided at the bottom of the air source base 43. The anti-slip pads 432 are evenly snap-fitted at the bottom of the air source base 43. The number of the anti-slip pads 432 is schematically shown as 4 in the figure. The anti-slip pads 432 can increase the friction between the air source device and the horizontal contact surface, ensuring the stability of the air source device during operation.

[0039] As Figure 4 described, the fan 5 is a hollow cylinder in the middle to maximize the air flow efficiency. The sound-absorbing device 3 is a cylinder. The length of the sound-absorbing device 3 is half of that of the fan 5, and the sound-absorbing device 3 is located in the upper half inside the fan 5. The sound-absorbing device 3 is made of shock-absorbing sponge. A plurality of long strip-shaped third holes 31 are provided in the shock-absorbing sponge. The third holes 31 help absorb the noise generated when the fan 5 operates, and at the same time allow air to flow, reducing the obstruction to the air flow. In addition, a plurality of seventh holes 51 are provided at both the upper and lower ends of the fan 5. The seventh holes 51 are respectively arranged at intervals at both the upper and lower ends of the fan 5. The total number of the seventh holes 51 is 8. Among them, there are 4 seventh holes 51 at the upper end of the fan 5 and 4 seventh holes 51 at the lower end of the fan 5.

[0040] In this embodiment, as Figure 4 or Figure 7 shown, a plurality of sixth holes 433 are provided inside the air source base 43. The number of the sixth holes 433 is schematically shown as 4 in the figure. The sixth holes 433 are threadedly connected to the seventh holes 51 at the lower end of the fan 5, thereby realizing the connection between the air source base 43 and the fan 5.

[0041] In this embodiment, as Figure 4 or Figure 6 shown, a plurality of fourth holes 414 are provided inside the air source upper cover 41. The number of the fourth holes 414 is schematically shown as 4 in the figure. The fourth holes 414 are threadedly connected to the seventh holes 51 at the upper end of the fan 5, thereby realizing the connection between the air source upper cover 41 and the fan 5.

[0042] In addition, inside the air source upper cover 41, a fifth hole 415 is respectively provided on both sides of the air outlet 413. As Figure 5 shown, a second convex edge 12 is respectively provided on both sides of the speed regulation device 1, and a first hole 121 is respectively provided on the second convex edge 12. The fifth hole 415 is threadedly connected to the first hole 121, thereby realizing the connection between the speed regulation device 1 and the air source upper cover 41.

[0043] In this embodiment, as Figure 5 shown, a second hole slot 21 is provided on the speed control switch 2, and a first convex edge 11 is provided on the speed control device 1. Since the speed control switch 2 is located outside the main housing 4, that is, the speed control switch 2 is located on the top of the air source upper cover 41, and the speed control device 1 is located inside the main housing 4, a first small hole 413 is opened on the air source upper cover 41. The first convex edge 11 can pass through the first small hole 413 on the air source upper cover 41 and be clamped with the second hole slot 21, enabling the user to operate the speed control switch 2 more conveniently. The user can turn the speed control switch 2 to turn on the air source device and adjust the air pressure to achieve different air pressure conditions required for the experiment.

[0044] In this embodiment, as Figure 1 shown, in order to facilitate the user to carry and move the device, a handle 6 is further provided on the top of the air source upper cover 41, and the handle 6 is fixed to the main housing 4 by a clamping method.

[0045] Before using this utility model, installation is required, which is as follows:

[0046] Connection between the fan 5, the speed control device 1, the speed control switch 2, and the sound silencing device 3:

[0047] As Figure 1 or Figure 2 shown, a wire of the speed control device 1 passes through the wire inlet 431 on the air source base 43, and another wire of the speed control device 1 is connected to the fan 5. The sound silencing device 3 is installed inside the fan 5, and the sound silencing device 3 is located in the upper half of the fan 5. Then, the first convex edge 11 of the speed control device 1 passes through the first small hole 413 of the air source upper cover 41 and is clamped in the second hole slot 21 of the speed control switch 2 to achieve the connection between the speed control device 1 and the speed control switch 2.

[0048] Connection between the speed control device 1, the main housing 4, and the fan 5:

[0049] The speed control device 1 is connected to the main housing 4 by screwing the fifth hole slot 415 of the air source upper cover 41 with the first hole slot 121; the multiple fourth hole slots 414 inside the air source upper cover 41 are screwed with the multiple seventh hole slots 51 at the upper end of the fan 5, and then the multiple sixth hole slots 433 inside the air source base 43 are screwed with the multiple seventh hole slots 51 at the lower end of the fan 5 to achieve the connection between the fan 5 and the main housing 4; the anti-slip foot pads 432 are evenly installed at the bottom of the main housing 4; the two ends of the handle 6 are screwed to the top of the air source upper cover 41 to achieve the connection between the handle 6 and the main housing 4.

[0050] In this embodiment, the usage steps of the air source device are as follows:

[0051] 1. Connect the power cord to the wire led out from the inlet 431 of the air source base 43 of the speed control device 1.

[0052] 2. Turn on the air source device by rotating the speed control switch 2 and adjust the air pressure according to the experimental requirements.

[0053] 3. The gas enters the device through the air inlet 412 on the main housing 4, and after being accelerated by the fan 5, it is output through the air outlet 411.

[0054] 4. Use the handle 6 to carry or move the air source device to the required position.

[0055] 5. After the experiment, turn off the air source device through the speed control switch 2 and disconnect the power supply.

[0056] In summary, in an adjustable air source device provided by an embodiment of the present invention, through the combined use of the speed control device 1 and the fan 5, the present invention can flexibly adjust the air pressure generated by the fan 5 to meet the air pressure requirements of different experimental or application scenarios. However, the air source devices in the prior art often have a fixed gas pressure and cannot meet diverse experimental conditions.

[0057] Furthermore, the design of the handle 6 makes the present invention easy to carry and move. At the same time, by being connected and fixed to the main housing 4, it can enhance the stability of the overall structure.

[0058] Furthermore, the sound insulation device 3 uses shock-absorbing sponge, which can effectively reduce the noise generated during the operation of the fan 5 and improve the use environment. In addition, the design of the long strip-shaped third hole groove 31 of the shock-absorbing sponge can increase the contact area with the air, improve the sound insulation and shock-absorbing effects, and at the same time, the layout on the upper half of the fan 5 helps to balance the air flow and pressure inside the fan 5.

[0059] Furthermore, the present invention continuously sets a plurality of air inlets 412 on the side of the air source upper cover 41. Compared with the prior art where a plurality of air inlets 412 are arranged around the pipe, the change in the position of the air inlets 412 in the present invention helps to form a stable air flow and improve the use efficiency of the air source device.

[0060] The above is only the preferred embodiment of the present invention and does not impose any limitation on the present invention. Any person skilled in the art within the technical field, without departing from the technical solution of the present invention, makes any form of equivalent replacement or modification and other changes to the technical solution and technical content disclosed by the present invention, all of which belong to the content within the technical solution of the present invention and still fall within the protection scope of the present invention.

Claims

1. An adjustable gas source device, characterized in that, It includes a speed regulating device, a speed regulating switch, a sound silencing device, a main housing and a blower; The speed regulating device and the blower are both located inside the main housing, and are connected by wires therebetween; the speed regulating switch is snap-fitted with the speed regulating device, and the speed regulating switch is located outside the main housing and is used to turn on the air source device and adjust the air pressure generated by the blower; the sound silencing device is located inside the blower.

2. The adjustable gas source device according to claim 1, wherein, It further includes a handle, and the handle is connected to the main housing.

3. The adjustable gas source device according to claim 2, wherein, The main housing includes an air source upper cover, a pipe and an air source base; the pipe is a hollow cylinder in the middle, and the air source upper cover and the air source base are respectively snap-fitted at the upper and lower ends of the pipe.

4. The adjustable gas source device according to claim 3, wherein, The top of the air source upper cover is provided with an air outlet, and a plurality of air inlet holes are continuously provided on the side of the air source upper cover.

5. The adjustable gas source device according to claim 3, characterized in that, The air source upper cover is provided with a first small hole, and a first convex edge on the speed regulating device passes upward through the first small hole and is snap-fitted with the speed regulating switch.

6. The adjustable gas source device according to claim 3, wherein The bottom of the air source base is provided with a plurality of anti-slip foot pads.

7. The adjustable gas source device according to claim 3, characterized in that, The pipe is made of PVC material.

8. The adjustable gas source device according to claim 3, wherein, The base is provided with a wire inlet hole.

9. The adjustable gas source device according to claim 1, characterized in that, The blower is a hollow cylinder in the middle, the sound silencing device is a cylinder, and a plurality of long strip-shaped third hole grooves are provided inside, the length of the sound silencing device is half of that of the blower, and the sound silencing device is located in the upper half of the blower.

10. The adjustable gas source device according to claim 9, characterized in that, The sound silencing device is made of shock-absorbing sponge.

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