Air ring demonstration nozzle in liquid and demonstration device

Abstract

The present invention discloses an air ring demonstration nozzle in liquid, wherein a jet channel is provided on a base, an orifice plate is mounted on the base and is located at the air outlet end of the jet channel, a plurality of air holes distributed along a circumference are provided on the orifice plate, an elastic sealing plate is mounted on the base, the elastic sealing plate is located at the side of the orifice plate away from the base, an air groove is provided on the elastic sealing plate, and a plurality of air holes are arranged around the air groove. With the above-mentioned optimized design of the air ring demonstration nozzle in liquid, the orifice plate is protected by the elastic sealing plate, the gas ejected from the jet channel pushes the elastic sealing plate to deform, and forms a gap between the elastic sealing plate and the orifice plate, and then is discharged through the air groove, thereby greatly improving the stability of the gas forming the air ring, so that the generated air ring has a smooth appearance and reduced defects. The present invention also proposes an air ring demonstration device in liquid.

Description

Technical Field

[0001] The invention relates to the field of popular science technology, and in particular to an air ring demonstration nozzle and a demonstration device in a liquid. Background Art

[0002] The "Bernoulli principle" is the basic principle used in hydraulics before the establishment of the theoretical equation of continuous medium in fluid mechanics. Its essence is the conservation of mechanical energy of fluid. Its most famous inference is: when the flow is at equal height, the greater the flow velocity, the smaller the pressure.

[0003] The air ring is a popular science device for popularizing Bernoulli's principle. The existing product uses the beverage bottle cap as the air ring nozzle. The disadvantages of this technical solution are: 1. The existing nozzle is easy to tear and break, has a short life, cannot be repaired, and can only be replaced; 2. The probability of ring formation is low, about 70%; 3. The air ring has poor stability, and the surface of the air ring is wrinkled and split halfway up. Summary of the invention

[0004] In order to solve the technical problems existing in the background technology, the present invention proposes an air ring demonstration nozzle in liquid.

[0005] The present invention provides an air ring demonstration nozzle in liquid, comprising: a base, a hole plate, and an elastic sealing plate;

[0006] The base is provided with a jet channel, the orifice plate is installed on the base and is located at the air outlet end of the jet channel, the orifice plate is provided with a plurality of air holes distributed along the circumference, the elastic sealing plate is installed on the base, the elastic sealing plate is located on the side of the orifice plate away from the base, the elastic sealing plate is provided with an air groove, and the plurality of air holes are arranged around the air groove.

[0007] Preferably, it also includes a pressing plate, which has an annular structure and is mounted on the base and abuts against the side of the elastic sealing plate away from the orifice plate.

[0008] Preferably, the elastic sealing plate is provided with a plurality of lobes, and air grooves are formed between adjacent lobes.

[0009] Preferably, the plurality of lobes are distributed along the circumference.

[0010] Preferably, each leaf is arranged corresponding to a ventilation hole.

[0011] Preferably, the plurality of air holes are evenly distributed along the circumference around the air groove.

[0012] Preferably, a sealing ring is provided between the orifice plate and the base.

[0013] Preferably, the inner wall of the jet channel is provided with an internal thread.

[0014] Preferably, the outer wall of the base is provided with an external thread.

[0015] In the present invention, the proposed air ring demonstration nozzle in liquid has an air jet channel on the base, an orifice plate mounted on the base and located at the air outlet end of the air jet channel, a plurality of air holes distributed along the circumference on the orifice plate, an elastic sealing plate mounted on the base, the elastic sealing plate located on the side of the orifice plate away from the base, an air groove on the elastic sealing plate, and a plurality of air holes arranged around the air groove. The air ring demonstration nozzle in liquid with the above-mentioned optimized design is protected by the elastic sealing plate, the gas ejected from the air jet channel pushes the elastic sealing plate to deform, and forms a gap between the elastic sealing plate and the orifice plate, and then is discharged through the air groove, thereby greatly improving the stability of the gas forming the air ring, so that the generated air ring has a smooth appearance and reduced defects.

[0016] The present invention also provides an air ring demonstration device in liquid, comprising the above-mentioned air ring demonstration nozzle in liquid.

[0017] In the present invention, the proposed air ring demonstration device in liquid has a technical effect similar to that of the above-mentioned air ring demonstration device in liquid, so it will not be described in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of an air ring demonstration nozzle in liquid proposed by the present invention.

[0019] Figure 2 This is a schematic diagram of the top view of the structure of an air ring demonstration nozzle in liquid proposed by the present invention. DETAILED DESCRIPTION

[0020] like Figure 1 and 2 As shown, Figure 1 This is a schematic diagram of the structure of an air ring demonstration nozzle in liquid proposed by the present invention. Figure 2 This is a schematic diagram of the top view of the structure of an air ring demonstration nozzle in liquid proposed by the present invention.

[0021] Reference Figure 1 and 2 , the present invention proposes an air ring demonstration nozzle in liquid, comprising: a base 1, a hole plate 2, and an elastic sealing plate 3;

[0022] A jet channel is provided on the base 1, a orifice plate 2 is installed on the base 1 and is located at the air outlet end of the jet channel, a plurality of air holes 21 distributed along the circumference are provided on the orifice plate 2, an elastic sealing plate 3 is installed on the base 1, the elastic sealing plate 3 is located on the side of the orifice plate 2 away from the base 1, an air groove 31 is provided on the elastic sealing plate 3, and a plurality of air holes 21 are arranged around the air groove 31.

[0023] During the specific demonstration process of the air ring demonstration nozzle in the liquid of this embodiment, the base is first installed and fixed to the demonstration container, and one end of the air inlet of the base is connected to the air source, and the air outlet end is immersed in the demonstration liquid; during the demonstration, the air source is intermittently supplied with air electrically or manually, and the air flow intermittently impacts the elastic sealing plate, causing the elastic sealing plate to deform, and the rest enters the demonstration liquid through the gap between the elastic sealing plate and the orifice plate via the air groove, generating a stable air ring.

[0024] In this embodiment, the proposed air ring demonstration nozzle in liquid has an air jet channel on the base, an orifice plate mounted on the base and located at the air outlet of the air jet channel, a plurality of air holes distributed along the circumference on the orifice plate, an elastic sealing plate mounted on the base, the elastic sealing plate located on the side of the orifice plate away from the base, an air groove on the elastic sealing plate, and a plurality of air holes arranged around the air groove. The air ring demonstration nozzle in liquid with the above-mentioned optimized design is protected by the elastic sealing plate, the gas ejected from the air jet channel pushes the elastic sealing plate to deform, and forms a gap between the elastic sealing plate and the orifice plate, and then is discharged through the air groove, thereby greatly improving the stability of the gas-formed air ring, so that the generated air ring has a smooth appearance and reduced defects.

[0025] In a specific embodiment, a pressure plate is also included. The pressure plate 4 has an annular structure. The pressure plate 4 is installed on the base 1 and abuts against the side of the elastic sealing plate 3 away from the orifice plate 2. The elastic sealing plate and the orifice plate are installed on the base through the pressure plate, and the sealing of the elastic sealing plate and the outer periphery of the orifice plate is ensured to prevent gas from overflowing from the edge.

[0026] In a specific installation method, the pressure plate can be fixed to the base by bolts.

[0027] In the specific design of the elastic sealing plate, a plurality of lobes 32 are provided on the elastic sealing plate 3, and air grooves 31 are formed between adjacent lobes 32. When the gas is ejected through the jet channel, the gas passing through the air holes pushes the lobes to deform, so that the air grooves become larger as the lobes deform, thereby increasing the gas output.

[0028] In the specific distribution mode of the vanes, a plurality of vanes 32 are distributed along the circumference, thereby increasing the deformation margin of the air groove.

[0029] In a further specific embodiment, each lobe 32 is disposed corresponding to a vent hole 21 , so that the gas passing through each vent hole pushes the corresponding lobe to deform.

[0030] In order to ensure that the gas passing through the air holes enters the air groove evenly from all directions, in a specific design, a plurality of air holes 21 are evenly distributed along the circumference around the air groove 31 .

[0031] In order to improve the sealing effect between the orifice plate and the base, a sealing ring 5 is provided between the two.

[0032] In order to facilitate the installation of the base and the external device, the inner wall of the jet channel is provided with an internal thread.

[0033] In other specific embodiments, the outer wall of the base 1 is provided with external threads.

[0034] The present invention also provides an air ring demonstration device in liquid, comprising the above-mentioned air ring demonstration nozzle in liquid.

[0035] In the present invention, the proposed air ring demonstration device in liquid has a technical effect similar to that of the above-mentioned air ring demonstration device in liquid, so it will not be described in detail.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An air ring demonstration nozzle in liquid, characterized in that: include: Base (1), orifice plate (2), elastic sealing plate (3); The base (1) is provided with an air jet channel, the orifice plate (2) is mounted on the base (1) and is located at the air outlet end of the air jet channel, the orifice plate (2) is provided with a plurality of air holes (21) distributed along a circumference, the elastic sealing plate (3) is mounted on the base (1), the elastic sealing plate (3) is located at a side of the orifice plate (2) away from the base (1), an air groove (31) is provided on the elastic sealing plate (3), and the plurality of air holes (21) are arranged around the air groove (31); The elastic sealing plate (3) is provided with a plurality of leaf lobes (32), and air grooves (31) are formed between adjacent leaf lobes (32); During the demonstration, the base (1) is fixedly mounted on the demonstration container, and one end of the base (1) is connected to the air source, while the other end is immersed in the demonstration liquid. During the demonstration, the air source intermittently supplies air, and the airflow intermittently impacts the elastic sealing plate (3), causing the elastic sealing plate (3) to deform, and then enters the demonstration liquid through the gap between the elastic sealing plate (3) and the orifice plate (2) via the air groove (31), thereby generating a stable air ring. A plurality of lobes (32) are distributed along the circumference; Each leaf petal (32) is arranged corresponding to a ventilation hole (21).

2. The air ring demonstration nozzle in liquid according to claim 1, characterized in that: It also comprises a pressing plate (4) having an annular structure. The pressing plate (4) is mounted on the base (1) and abuts against a side of the elastic sealing plate (3) away from the orifice plate (2).

3. The air ring demonstration nozzle in liquid according to claim 1, characterized in that: A plurality of air holes (21) are evenly distributed along the circumference around the air groove (31).

4. The air ring demonstration nozzle in liquid according to claim 1, characterized in that: A sealing ring (5) is provided between the orifice plate (21) and the base (1).

5. The air ring demonstration nozzle in liquid according to claim 1, characterized in that: The inner wall of the jet passage is provided with internal threads.

6. The air ring demonstration nozzle in liquid according to claim 1, characterized in that: The outer wall of the base (1) is provided with an external thread.

7. An air ring demonstration device in liquid, characterized in that: An air-in-liquid demonstration nozzle comprising the air-in-liquid ring demonstration nozzle according to any one of claims 1-6.

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