How a soap pump works (3D Animation)

Short Video Series (SVS-0019)
How a soap pump works

📫𝐎𝐮𝐫 𝐅𝐁 𝐏𝐚𝐠𝐞:

📚𝐃𝐚𝐯𝐢𝐝'𝐬 𝐁𝐨𝐨𝐤𝐬
📕 𝗪𝗲𝗶𝗿𝗱 𝗠𝗮𝘁𝗵𝘀: 𝗔𝘁 𝘁𝗵𝗲 𝗘𝗱𝗴𝗲 𝗼𝗳 𝗜𝗻𝗳𝗶𝗻𝗶𝘁𝘆 𝗮𝗻𝗱 𝗕𝗲𝘆𝗼𝗻𝗱
📙 𝗪𝗲𝗶𝗿𝗱𝗲𝗿 𝗠𝗮𝘁𝗵𝘀: 𝗔𝘁 𝘁𝗵𝗲 𝗘𝗱𝗴𝗲 𝗼𝗳 𝘁𝗵𝗲 𝗣𝗼𝘀𝘀𝗶𝗯𝗹𝗲
📗 𝗪𝗲𝗶𝗿𝗱𝗲𝘀𝘁 𝗠𝗮𝘁𝗵𝘀: 𝗔𝘁 𝘁𝗵𝗲 𝗙𝗿𝗼𝗻𝘁𝗶𝗲𝗿𝘀 𝗼𝗳 𝗥𝗲𝗮𝘀𝗼𝗻
** The kindle versions are available

📄𝗧𝗿𝗮𝗻𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻:
This small object – the soap pump – is used billions of times everyday by people all over the world. It keeps our hands clean and so helps protect our health. Let’s see how it works. In order to understand its working mechanism, we’ll look at a simple version of it – a syringe.

As you know, if we plunge a syringe into a liquid and pull its plunger, it sucks up some of the liquid. If we push the plunger, the liquid is forced back out. What if we add a one-way valve on the seal?

When we pull the plunger, it sucks liquid like before, but when we push the plunger, the one-way valve is opened and liquid starts to move into the barrel. In order to create enough liquid pressure and make the movements easier, we can add a plastic ball and a spring between the tip and the seal. Now if we push the plunger and release it, because of the spring, it sucks up some liquid. If we push the plunger, because of the plastic ball that plugs the tip, liquid starts to move into the barrel. If we release the plunger it sucks up some fluid again. Eventually liquid reaches the top.

The soap dispenser pump works in the same way as the syringe mechanism. When we push and release its head the first time, it sucks up some of the liquid soap. After the first push, if we push again, the soap that’s sucked up passes through a one-way valve and reaches the nozzle.

#soap #pump #work

[VenkmanPhD]

These are the thoughts that keep me up at night

[Prashc]

Cool.

Just to clarify, the red balls act as one-way valves that allow for air evacuation in the chamber beneath upon the downstroke of the cap, loading the chamber with fluid then the spring mechanism completes the pump cycle during the upstroke by returning back to the original position. Repeated pumps move more fluid closer to the orifice/opening of the pump.

I see that the downside is that the spring is in contact with the fluid, limiting its use to non-metal corroding liquids.

[sifatrabbi]

Awesome explanation and animation. Much appreciated!

[spiceriq]

This channel deserve millions subscribers

[mabinissacjohn]

You should become a teacher so that students can fall in love with learning physics. Blessed are your kids.

[shininglikeastar]

Fascinating for a 7th grader. I tried to figure it out on my own and vey much did, but this video helped me a lot.

[tmunuo]

The pump design prevents air from entering the bottle to maintain hygiene and prevent contamination. However, despite the decrease in volume as the liquid soap is dispensed, the bottle doesn't collapse or deform. Why is that?

[doublybear]

solid explanation. thank you.. been wondering about this.

[itszahin]

explained better than branch education. keep it up!

[KS-mxh]

Please do one for the airless pump bottle that they use in cosmetic, I have hard time visualizing how that one works

[roelzylstra]

@ScienceWorld1 How about a foaming soap dispenser?

[simpalgroup]

Awesome!
I was wondering how to simulate it with CFD 😅

[dhruvil]

I literally woke up at 3AM and searched for this
Now it's time for foaming soap dispensers

[Jess-nuij]

This is out of context but can you please tell me how did you make this animation? It's wonderful. I need to present the mechanism for my university project. Please help! I would be really grateful.

[mesta]

what is the purpose of the plastic ball

[reizinhodojogo]

Gente vamos fazer o youtube dominado por JESUS!
Cole isso em todos os vídeos que você vê!
💛ELE VIVE💛
🔥ELE ESTÁ VOLTANDO🔥