Oil drop atomization device

Abstract

The utility model discloses an atomized oil drop device, which is characterized by comprising a Millikan oil drop experimental instrument, a barrel mounted on the Millikan oil drop experimental instrument and an atomized oil drop component mounted in the barrel, the atomized oil drop assembly comprises an oil cup, an oil suction pipe, a combined metal block and a nozzle screw, wherein the oil suction pipe and the combined metal block are installed in the oil cup, and the nozzle screw penetrates through the barrel to fix the oil cup and is connected with the combined metal block. The rubber ear washing bulb is inserted through the nozzle screw to blow air, the air injection pipe in the combined metal block is used for blowing air to the oil suction pipe, negative pressure is generated in the oil suction pipe to suck oil stored in the oil cup, the air injection pipe blows away oil to form oil mist, the oil mist is blown into the oil cup and collides to form rotating oil mist, large oil drops sink, small oil drops are rotated to overflow out of the oil cup, and the oil mist is sprayed out of the oil cup. Oil is prevented from flowing out to pollute the experimental environment, oil drops with uniform sizes are spread in the barrel of the Millikan oil drop experimental instrument, the oil mist hole switch plate is pushed to enter the Millikan oil drop experimental instrument through the oil mist hole plate to be experimented, and therefore the experimental accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching experimental devices, in particular to an atomized oil drop device. Background Art

[0002] Millikan's oil drop experiment was an experiment to measure the charge of an oil drop, and won the 1923 Nobel Prize in Physics. The results of the experiment showed that the charge of all charged objects changes discontinuously, and the amount of charge they carry is an integer multiple of a certain minimum charge, the basic charge e, and the value of e was determined more accurately. It revealed the quantum nature of the electrical structure of matter, which played a decisive role in people's understanding of the basic structure of matter.

[0003] The Millikan oil drop experiment requires certain experimental techniques, among which it is important to obtain the oil droplet of the appropriate size, and then choose the appropriate voltage and accurately control the timing.

[0004] At present, atomized oil droplets are produced by sucking oil and spraying with a medical laryngeal sprayer. Since the medical laryngeal sprayer is used in medicine, it only needs to spray the medicine. During atomization, due to the different forces used on the laryngeal sprayer, the oil droplets produced are uneven in size, thereby reducing the accuracy of the experiment. At the same time, the laryngeal sprayer will also spray air when spraying oil droplets. The air sprayed will make the oil droplets circulate in the barrel, which is easy to affect the experiment and pollute the experimental environment. Therefore, an atomized oil droplet device that improves the accuracy of the experiment is proposed. Summary of the invention

[0005] The purpose of the utility model is to solve the above problems and to provide an atomized oil drop device.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an atomized oil drop device, which is characterized by comprising a Millikan oil drop tester, an atomized oil drop assembly installed in a round barrel on the Millikan oil drop tester; the atomized oil drop assembly comprises an oil cup, an oil suction pipe installed in the oil cup and a combined metal block, and a nozzle screw that passes through the round barrel to fix the oil cup and connects the combined metal block.

[0007] Preferably, the combined metal block is also provided with an air injection pipe connected to the nozzle screw.

[0008] Preferably, the nozzle screw is provided with a small through hole communicating with the nozzle pipe.

[0009] Preferably, the combined metal block is also connected to an adjustment plate for fixing the oil suction pipe.

[0010] Preferably, a fixing screw for fixing the adjusting plate is installed on one side of the combined metal block, and an adjusting screw for adjusting the adjusting plate is installed on the other end.

[0011] Preferably, an oil mist orifice plate and an oil mist orifice switch plate are provided between the Millikan oil drop test apparatus and the drum.

[0012] Preferably, the barrel is also equipped with a transparent upper cover for convenient observation of the status of atomized oil droplets.

[0013] The utility model has the following beneficial effects: air is blown through the rubber ear-washing bulb inserted through the nozzle screw, and the jet pipe in the combined metal block is used to spray air above the upper port of the oil suction pipe, so that negative pressure is generated in the oil suction pipe, and its lower port attracts the oil stored in the lower part of the oil cup, and the jet pipe disperses the sucked oil to form oil mist, which is blown to the arc curved wall of the oil cup and collides to form rotating oil mist, large oil droplets sink, and small oil droplets are rotated to overflow the oil cup, so that the oil outflow is prevented from polluting the experimental environment, and oil droplets of relatively uniform size are diffused in the barrel of the Millikan oil drop tester, and the oil mist hole switch plate is pushed, and the oil droplets will enter the Millikan oil drop tester through the oil mist hole plate for experiment, thereby improving the accuracy of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a top view of the atomized oil droplet assembly of the utility model.

[0016] Figure 3 It is a side view of the atomizing oil droplet assembly of the utility model.

[0017] Figure 4 It is a bottom view of the atomizing oil droplet assembly of the utility model.

[0018] Figure 5 It is a structural schematic diagram of a nozzle screw of the utility model.

[0019] Figure 6 It is a side view of the combined metal block of the utility model.

[0020] Legend: 1. Atomized oil drop assembly; 2. Millikan oil drop tester; 3. Oil mist orifice plate; 4. Round barrel; 5. Transparent upper cover; 6. Oil mist orifice switch plate; 7. Oil cup; 8. Oil suction pipe; 9. Jet pipe; 10. Fixing screw; 11. Combined metal block; 12. Nozzle screw; 13. Adjustment screw; 14. Adjustment plate. DETAILED DESCRIPTION

[0021] Next, we will further explain the atomized oil droplet device described in the utility model in conjunction with the accompanying drawings.

[0022] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See attached Figure 1-6 As shown, in this embodiment, an atomized oil droplet device is characterized by comprising a Millikan oil droplet tester 2, an atomized oil droplet assembly 1 installed in a barrel 4 on the Millikan oil droplet tester 2; the atomized oil droplet assembly 1 comprises an oil cup 7, an oil suction pipe 8 installed in the oil cup 7, a combined metal block 11, and a nozzle screw 12 passing through the barrel 4 to fix the oil cup 7 and connecting the combined metal block 11; air is blown through a rubber ear cleaning bulb inserted through the nozzle screw 12, and the air is blown above the upper end of the oil suction pipe 8 by using the air jet pipe 9 in the combined metal block 11 to suck oil Negative pressure is generated in the tube 8, and its lower port attracts the oil stored in the lower part of the oil cup 7. The jet pipe 9 blows the sucked oil to form oil mist, which is blown to the arc curved wall of the oil cup 7 and collides to form rotating oil mist. Large oil droplets sink, and small oil droplets are rotated to overflow the oil cup 7, preventing the oil from flowing out and polluting the experimental environment. Oil droplets of relatively uniform size are diffused in the barrel 4 of the Millikan oil drop tester 2, pushing the oil mist hole switch plate 6, and the oil droplets will enter the Millikan oil drop tester 2 through the oil mist hole plate 3 for experiment, thereby improving the accuracy of the experiment.

[0025] See attached Figure 1-4 As shown, the combined metal block 11 is also equipped with an air jet tube 9 connected to a nozzle screw 12; the nozzle screw 12 is provided with a small through hole communicating with the air jet tube 9; by utilizing the small through hole on the nozzle screw 12, the rubber ear cleaning ball can transport gas to the air jet tube 9 through the small through hole to produce oil droplets.

[0026] See attached Figure 2As shown, the combined metal block 11 is also connected to an adjustment plate 14 for fixing the oil suction pipe 8; a fixing screw 10 for fixing the adjustment plate 14 is installed on one side of the combined metal block 11, and an adjusting screw 13 for adjusting the adjustment plate 14 is installed on the other end; by rotating the adjusting screw 13, the adjusting screw 13 pushes the adjusting plate 14 downward, and the distance between the adjusting plate 14 and the combined metal block 11 is adjusted, so as to facilitate the adjustment of the distance between the oil suction pipe 8 and the injection pipe 9 and change the size of the atomized oil droplets.

[0027] See attached Figure 1 As shown, an oil mist hole plate 3 and an oil mist hole switch plate 6 are provided between the Millikan oil drop tester 2 and the barrel 4; a transparent upper cover 5 for conveniently observing the state of atomized oil droplets is also installed on the barrel 4; through the setting of the transparent upper cover 5, the experimenter can conveniently observe the state of atomized oil droplets, and at the same time, the transparent upper cover 5 can be removed to add oil and adjust the oil cup 7.

[0028] In the experimental process of the utility model, firstly, a rubber ear-washing ball is inserted into the nozzle screw 12, and the rubber ear-washing ball is used to blow air to the air jet pipe 9. The air jet from the air jet pipe 9 generates a rapid airflow, and a negative pressure is formed at the oil suction pipe 8, so that the oil is attracted to move upward, and is blown away by the rapid airflow at the air jet pipe 9 to form oil mist. The oil mist is blown to the arc wall of the oil cup 7, and collides to form a rotating oil mist. The large oil droplets sink, and the small oil droplets are rotated to overflow the oil cup 7 and diffuse above the oil mist orifice plate 3. Then, the oil mist orifice switch plate 6 is pushed open, and oil droplets of uniform size enter the oil mist holes of the oil mist orifice plate 3, and the Millikan oil drop experiment can be carried out.

[0029] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. An atomized oil droplet device, characterized by comprising a Millikan oil droplet tester (2), and an atomized oil droplet assembly (1) installed in a round barrel (4) on the Millikan oil droplet tester (2); the atomized oil droplet assembly (1) comprises an oil cup (7), an oil suction pipe (8) installed in the oil cup (7), a combined metal block (11), and a nozzle screw (12) passing through the round barrel (4) to fix the oil cup (7) and connect the combined metal block (11).

2. The atomized oil droplet device according to claim 1, characterized in that: The combined metal block (11) is also provided with an air injection pipe (9) connected to the nozzle screw (12).

3. The atomized oil droplet device according to claim 2, characterized in that: The nozzle screw (12) is provided with a small through hole which is communicated with the nozzle pipe (9).

4. The oil droplet atomizing device according to claim 1, characterized in that: The combined metal block (11) is also connected to an adjustment plate (14) for fixing the oil suction pipe (8).

5. The oil droplet atomizing device according to claim 4, characterized in that: A fixing screw (10) for fixing the adjustment plate is installed on one side of the combined metal block (11), and an adjustment screw (13) for adjusting the adjustment plate is installed on the other end.

6. The atomized oil droplet device according to claim 1, characterized in that: An oil mist hole plate (3) and an oil mist hole switch plate (6) are provided between the Millikan oil drop tester (2) and the drum (4).

7. The atomized oil droplet device according to claim 6, characterized in that: The barrel (4) is also provided with a transparent upper cover (5) for convenient observation of the atomized oil droplets.

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