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Hits:Updated:2020-08-07 10:08:40【Print】
There are many inventions in the world. These inventions can greatly facilitate people’s lives, just like the electrical plugs in every household. In the previous era, when there were no plugs, electricity was extremely inconvenient. After installing this wire plug, it really brings a lot of benefits to people. But it is such an inconspicuous thing, and its structure is amazing. Maybe many people have not paid special attention to the structure of the wire plug. If you have carefully observed it, you will find that there are two small holes on the plug. Yes, what is the use of these two small holes?
The plug, as the name suggests, is something that is connected to the socket. After the connection, the current flows from the wire into the electrical appliance, so that the electrical appliance has power to work and can serve people, but these seem to have nothing to do with the two holes There are inevitable connections. There are many reasons for the design of the two holes. Here are a few more reliable explanations.
Some experts believe that the role of this hole is to play a fixed role. Once the plug is inserted into the card socket, the card socket will firmly jam the two holes, and you need a lot of effort to pull it out. This is to prevent children from playing with plugs if they are not sensible, and they are likely to be electrocuted. With this hole, children will not have so much strength and cannot pull it out, which can greatly ensure the safety of children. There will never be news reports of a child being electrocuted. The current plugs are matched with other facilities. After plugging in the socket, the hole of the socket can be covered. Then it is an airtight system, and the danger is absolutely impossible.
Some experts believe that this is an artifact of quitting the net. If the child is addicted to the game, the parent can directly unplug the computer, and then these two holes can be locked with a lock, and the child cannot connect to the socket unless he can get the key of the lock. Don't want to touch the game in your life.
The other is the fixed effect, which is similar to the reason explained in the first. That is, when the three-hole socket has not yet appeared, the two-hole socket is actually very weak. With these two holes, it can be stuck in the socket, and the plug and the socket will not be half separated. If the plug If it is not plugged in, an electric shock may occur, which is very unsafe. However, with the progress of the times, such two-hole plugs have been replaced by thick two-head plugs and three-hole plugs, so people generally don't use two-hole plugs.
Personal opinion: In fact, most of these are considered from the perspective of safety, and they are more suitable for life, because any invention is designed to facilitate or meet people's needs.
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