Automatic oil injection device and oil drop instrument with same

Abstract

The utility model discloses an automatic oil spraying device and an oil drop instrument with the same, relates to the technical field of university physical experiments, and aims to solve the technical problems that oil sprayed by a sprayer accurately reaches an oil mist chamber, the force and quantity of oil spraying actions are fixed and unified, oil waste is reduced, and the oil drop instrument is not easy to damage and does not leak. Comprising an air pump, an air storage coil pipe, an air channel tee joint, a first air channel hose, a first sprayer, a second air channel hose and a second sprayer. According to the automatic oil spraying device provided by the embodiment of the utility model, the first button or the second button is pressed down, the air pump is started, the air storage coil pipe is full of oil after several seconds, the indicator lamp is turned on, the corresponding first electromagnetic valve or second electromagnetic valve starts to work, and air enters the first sprayer or the second sprayer through the first air channel hose and the second air channel hose; gas is mixed with oil in the first sprayer or the second sprayer and then sprayed into the aerosol chamber, and the automatic oil spraying action is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of college physics experiments, in particular to an automatic oil spraying device and an oil drop instrument with the automatic oil spraying device. Background Art

[0002] The Millikan oil drop experiment is a classic college physics experiment. In this experiment, it is necessary to spray atomized oil droplets between the upper and lower electrode plates of the oil mist chamber of the oil drop instrument to measure the charge of the oil droplets. Most of the oil drop instrument products on the market currently spray atomized oil droplets into the oil mist chamber manually by using a handheld sprayer through the oil spraying port of the oil drop instrument. Before spraying, oil needs to be added to the handheld sprayer. However, this method has the following problems:

[0003] (1) There is still a short distance between the oil spraying port of the handheld sprayer and the oil inlet of the oil mist chamber. Whether the oil sprayed by the sprayer can accurately reach the oil mist chamber varies due to the differences in the operation techniques and positions of different operators;

[0004] (2) The strengths of different operators are different, and the amount of oil sprayed from the sprayer is also different. Spraying too much will waste oil, and spraying too little will not allow the experiment to be completed;

[0005] (3) The user may spray oil frequently using the handheld sprayer, and this unnecessary operation will cause waste of oil;

[0006] (4) The handheld sprayer is an independent glass component, and it is easy to be broken, damaged or lost if not properly stored;

[0007] (5) The oil storage area of the handheld sprayer is relatively deep and the oil filling channel is curved, making it difficult to add oil to it and it is very easy to spill and leak. Summary of the Utility Model

[0008] Embodiments of the utility model provide an automatic oil spraying device and an oil drop instrument with the automatic oil spraying device to at least solve the technical problems that the oil sprayed by the sprayer can accurately reach the oil mist chamber, the force and quantity of the oil spraying action are fixed and unified, reduce waste of oil, are not easily damaged, and do not leak.

[0009] To achieve the above object, the embodiments of the utility model adopt the following technical solutions:

[0010] An automatic oil spraying device, comprising an air pump, a gas storage coil pipe, a gas path tee, a first gas path hose, a first sprayer, a second gas path hose and a second sprayer. The air pump is used to generate air pressure and has an exhaust end; one end of the gas storage coil pipe is connected to the exhaust end of the air pump; the gas path tee has three connection ports, and one of the connection ports is connected to the other end of the gas storage coil pipe; one end of the first gas path hose is connected to another connection port of the gas path tee, and a first solenoid valve is installed between the two to control the flow and closure between the gas path tee and the first gas path hose; the intake end of the first sprayer is connected to the other end of the first gas path hose; one end of the second gas path hose is connected to another connection port of the gas path tee, and a second solenoid valve is installed between the two to control the flow and closure between the gas path tee and the second gas path hose; the intake end of the second sprayer is connected to the other end of the second gas path hose.

[0011] Beneficial effects: For the automatic oil spraying device provided by the embodiment of the present utility model, when the first button or the second button is pressed to turn on the air pump, after a few seconds, the gas storage coil pipe is filled, the indicator light is on, and at this time, the corresponding first solenoid valve or the second solenoid valve starts to work. The gas enters the first sprayer or the second sprayer through the first gas path hose and the second gas path hose. After the gas is mixed with the oil liquid in the first sprayer or the second sprayer, it is sprayed into the aerosol chamber, and the automatic oil spraying action is completed.

[0012] In a possible design, it further includes: a first button and a second button. The first button is electrically connected to the first solenoid valve to control the opening and closing of the first solenoid valve; the second button is electrically connected to the second solenoid valve to control the opening and closing of the second solenoid valve. The oil spraying action is completed by the oil spraying mechanism rather than manually. The force and quantity of the oil spraying action are fixed and unified, and will not vary due to different operators, neither wasting nor affecting the experimental effect;

[0013] In a possible design, the first button and the second button are interlocked. The oil spraying mechanism limits the time interval between two oil sprayings to ensure that frequent and unnecessary repeated oil sprayings will not occur;

[0014] In a possible design, both the first sprayer and the second sprayer include an oil mist separator body, and the upper and lower ends of the oil mist separator body respectively have an oil mist spray port and an air inlet.

[0015] In a possible design, the side of the oil mist separator body has an oil storage tank, and an oil cup cover is pivotally connected to the opening of the oil storage tank for opening or closing the oil storage tank;

[0016] In a possible design, a connector is installed on the side of the oil mist separator body. The side of the connector has an oil liquid observation window, and a detachable oil bottle is threadedly connected to the bottom end of the connector.

[0017] Another embodiment of the present utility model further provides an oil droplet apparatus, which has an automatic oil spraying device according to any one of the above technical solutions, and further includes an oil droplet apparatus chassis, a panel and an aerosol chamber. The oil droplet apparatus chassis has an accommodation space; the panel closes the accommodation space; the aerosol chamber is installed on the surface of the panel facing away from the oil droplet apparatus chassis; a part of the automatic oil spraying device is located in the accommodation space, and the other part extends out of the accommodation space and communicates with the aerosol chamber.

[0018] In the oil droplet apparatus provided by the embodiment of the present utility model, multiple oil spraying devices share a set of automatic oil spraying action mechanisms through a three-way gas path; one air pump and one air storage coil are distributed to multiple solenoid valves through a three-way gas path to realize that multiple oil spraying devices share a set of automatic oil spraying action mechanisms. Multiple oil spraying devices containing different oils can be integrally connected in parallel on the oil droplet apparatus. The oil spraying mechanism is integrated on the instrument, and the position is accurately fixed to ensure that the sprayed oil can accurately enter the oil mist chamber; the oil spraying device is integrated into the instrument and is not easily damaged or lost. Description of the Drawings

[0019] Figure 1 is a three-dimensional exploded view of the automatic oil spraying device and the oil droplet apparatus with the automatic oil spraying device according to the embodiment of the present utility model;

[0020] Figure 2 is a schematic diagram of the oil cup cover of the automatic oil spraying device according to the embodiment of the present utility model closing the oil storage tank;

[0021] Figure 3 is a schematic diagram of the oil cup cover of the automatic oil spraying device according to the embodiment of the present utility model opening the oil storage tank;

[0022] Figure 4 is a schematic diagram of the oil storage bottle of the automatic oil spraying device according to the embodiment of the present utility model.

[0023] In the figure:

[0024] 1. Oil droplet apparatus chassis;

[0025] 2. Panel;

[0026] 3. Automatic oil spraying device, 31. Air pump, 32. Air storage coil, 33. Three-way gas path, 34. First solenoid valve, 35. First gas path hose, 36. Second solenoid valve, 37. Second gas path hose, 38. First sprayer seat, 39. First sprayer, 310. First button, 311. Second sprayer seat, 312. Second sprayer, 313. Second button, 314. Oil storage tank, 315. Oil cup cover, 316. Oil mist nozzle, 317. Oil mist device main body, 318. Air inlet, 319. Connector, 320. Oil liquid observation window, 321. Detachable oil bottle;

[0027] 4. Aerosol chamber. Detailed Embodiments

[0028] The embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0030] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] The embodiments of the present utility model disclose an automatic oil spraying device 3. Please refer to Figure 1 , which includes an air pump 31, an air storage coil 32, an air path tee 33, a first air path hose 35, a first sprayer 39, a second air path hose 37, and a second sprayer 312. The air pump 31 is used to generate air pressure and has an exhaust end; one end of the air storage coil 32 is connected to the exhaust end of the air pump 31; the air path tee 33 has three connection ports, and one of the connection ports is connected to the other end of the air storage coil 32; one end of the first air path hose 35 is connected to another connection port of the air path tee 33, and a first solenoid valve 34 is installed between the two to control the flow and closing between the air path tee 33 and the first air path hose 35; the intake end of the first sprayer 39 is connected to the other end of the first air path hose 35; one end of the second air path hose 37 is connected to another connection port of the air path tee 33, and a second solenoid valve 36 is installed between the two to control the flow and closing between the air path tee 33 and the second air path hose 37; the intake end of the second sprayer 311 is connected to the other end of the second air path hose 37.

[0033] For the automatic oil spraying device 3 provided by the embodiment of the present utility model, when the first button 310 or the second button 313 is pressed, the air pump 31 is turned on. After a few seconds, the air storage coil pipe 32 is filled, and the indicator light is on. At this time, the corresponding first solenoid valve 34 or the second solenoid valve 36 starts to work, and the gas enters the first sprayer 39 or the second sprayer 312 through the first air hose 35 and the second air hose 37. After the gas is mixed with the oil in the first sprayer 39 or the second sprayer 312, it is sprayed into the aerosol chamber, and the automatic oil spraying action is completed.

[0034] To control the opening and closing of the solenoid valve, please continue to refer to Figure 1 It also includes a first button 310 and a second button 313. The first button 310 is electrically connected to the first solenoid valve 34 to control the opening and closing of the first solenoid valve 34; the second button 313 is electrically connected to the second solenoid valve 36 to control the opening and closing of the second solenoid valve 36. The first button 310 and the second button 313 are interlocked and cannot be started simultaneously. The oil spraying mechanism limits the time interval between two oil sprayings to ensure that frequent and unnecessary repeated oil spraying will not occur.

[0035] The following is a specific example of the above-mentioned first sprayer 39 and second sprayer 312. Both the first sprayer 39 and the second sprayer 312 include an oil mist generator body 317, and the upper and lower ends of the oil mist generator body 317 are respectively provided with an oil mist nozzle 316 and an air inlet 318;

[0036] To facilitate oil replenishment, please continue to refer to Figure 2 and Figure 3 A storage oil tank 314 is provided on the side of the oil mist generator body 317. An oil cup cover 315 is pivotally connected to the opening of the storage oil tank 314 for opening or closing the storage oil tank 314; the oil in the storage oil tank 314 enters the oil mist generator body 317, is mixed with the gas entering from the air inlet 318, and forms an oil mist that is sprayed out from the nozzle, which is convenient to use.

[0037] In another embodiment, to facilitate oil replenishment, please refer to Figure 4 A connector 319 is installed on the side of the oil mist generator body 317. An oil liquid observation window 320 is provided on the side of the connector 319, and a detachable oil bottle 321 is threadedly connected to the bottom end of the connector 319. The oil storage bottle has a detachable screw thread, and its installation on the panel 2 is completed by nuts, lock nuts and the threads of the sprayer itself. After the oil in the bottle is used up, instead of adding oil, a new oil-containing oil storage bottle can be directly removed and replaced.

[0038] The oil storage tank 314 of the automatic oil spraying device 3 is flat and open, making refueling easy and spillage-free. This utility model is a two-way automatic oil spraying and atomizing device 3. After powering on and entering the system, press the button next to the sprayer, and the corresponding sprayer will automatically spray oil without manual operation by the operator. The automatic oil spraying action mechanism is installed inside the chassis below the panel and can be mechanical, electronic, or other implementation methods. The automatic oil spraying action mechanism can control the time interval between two oil sprayings, and the next oil spraying can only be carried out after exceeding this time interval. At this time, the oil spraying indicator light will be on, otherwise it will be off.

[0039] Another embodiment of this utility model also provides an oil droplet meter. Please continue to refer to Figure 1 , which has an automatic oil spraying device 3 and also includes an oil droplet meter chassis 1, a panel 2, and an aerosol chamber 4. The oil droplet meter chassis 1 has an accommodation space; the panel 2 closes the accommodation space; the aerosol chamber 4 is installed on the surface of the panel 2 facing away from the oil droplet meter chassis 1; a part of the automatic oil spraying device 3 is located inside the accommodation space, and the other part extends out of the accommodation space and communicates with the aerosol chamber 4. The first sprayer 39 and the second sprayer 312 are respectively installed on the surface of the panel 2 through the first sprayer seat 38 and the second sprayer seat 311 to fix the first sprayer 39 and the second sprayer 312 respectively. The automatic oil spraying device 3 is fixedly integrated on the oil droplet meter. The automatic oil spraying device 3 contains an automatic oil spraying action mechanism, and the oil spraying action is completed by this mechanism rather than manually; the automatic oil spraying action mechanism in the automatic oil spraying device 3 can define the time interval between two oil sprayings to prevent frequent and unnecessary repeated oil sprayings; the automatic oil spraying device 3 can be removed for cleaning or replacement; remove the screws of the panel 2, lift the panel 2, pull out the air hose from the inlet end of the sprayer, then place the panel 2 back on the oil droplet meter chassis 1, loosen the screws on the side of the sprayer seat, and the sprayer can be taken out. Insert the cleaned or new sprayer into the sprayer seat, lift the panel, and insert the air hose into the sprayer inlet.

[0040] For the oil droplet meter provided by the embodiment of this utility model, multiple oil spraying devices share a set of automatic oil spraying action mechanisms through an air path tee 33; one air pump 31 and one air storage coil 32 are distributed to multiple solenoid valves through the air path tee 33 to achieve multiple oil spraying devices sharing a set of automatic oil spraying action mechanisms. Multiple oil spraying devices containing different oils can be integrally connected in parallel on the oil droplet meter.

[0041] In the description of this specification, specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0042] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the said claims.

Claims

1. An automatic oil injection device, characterized in that: include: an air pump, for generating air pressure, having an exhaust end; An air storage coil, one end of which is connected to the exhaust end of the air pump; A gas circuit tee, having three connection ports, one of which is connected to the other end of the gas storage coil; A first gas line hose, one end of which is connected to the other connection port of the gas line tee, and a first solenoid valve is installed between the two, for controlling the flow and closing between the gas line tee and the first gas line hose; a first sprayer, wherein an air inlet end of the first sprayer is connected to the other end of the first air line hose; A second gas line hose, one end of which is connected to another connection port of the gas line tee, and a second solenoid valve is installed between the two to control the flow and closing between the gas line tee and the second gas line hose; A second sprayer, wherein the air inlet end of the second sprayer is connected to the other end of the second air line hose.

2. The automatic oil spraying device according to claim 1, characterized in that: Also includes: A first button, electrically connected to the first solenoid valve, to control the opening and closing of the first solenoid valve; The second button is electrically connected to the second solenoid valve to control the opening and closing of the second solenoid valve.

3. The automatic oil spraying device according to claim 2, characterized in that: The first button is interlocked with the second button.

4. The automatic oil spraying device according to claim 1, characterized in that: The first sprayer and the second sprayer both include an oil mist sprayer body, and the upper and lower ends of the oil mist sprayer body are respectively provided with an oil mist nozzle and an air inlet.

5. The automatic oil spraying device according to claim 4, characterized in that: An oil storage tank is provided on the side of the oil mist collector body, and an oil cup cover is pin-connected to the opening of the oil storage tank for opening or closing the oil storage tank.

6. The automatic oil spraying device according to claim 4, characterized in that: A connector is installed on the side of the oil mist device body, the side of the connector is provided with an oil observation window, and the bottom end of the connector is threadedly connected with a detachable oil bottle.

7. An oil drop meter having an automatic oil spraying device according to any one of claims 1 to 6, characterized in that: Also includes: The oil drop instrument chassis has a storage space; A panel is used to seal the accommodation space; An aerosol chamber is mounted on a surface of the panel facing away from the oil droplet meter chassis; A part of the automatic oil spraying device is located in the accommodating space, and another part extends out of the accommodating space and communicates with the aerosol chamber.

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