Of course, that diving suit is too long now.

But that diving suit is a milestone for humans to step into the ocean.

Since then, many inventors have tried to design various diving suits.

Most of these various submersible equipment follow Conrad and Alfonso's designs, either using air bags with air or using long snorkels to maintain the diver's breathing.

This situation continued until the seventeenth century.

Britain designed many diving suits in the seventeenth and eighteenth centuries.

At the end of the 18th century, a designer named Clingert designed a diving equipment connected to a large spherical metal enclosed helmet and a metal-enclosed snorkel, which allowed divers to stay underwater for longer periods, which is the closest equipment to modern diving suits.

The disadvantage was that this design was too bulky at that time, and the metal pipe was not flexible in design, so hoses had to be used.

In the 19th century, the famous engineer Augustus Sibe switched to a new waterproof canvas material to make a diving suit.

In addition, he also designed a brand new diving helmet.

This helmet is riveted to the diving suit, and the snorkel presses air into it, using air filling to combat pressure, but due to air tightness, the air will leak out along the cuffs and trouser legs.

However, Xibei improved the design in 1837, which improved the airtightness of the cuffs and trouser legs.

At that time, Charles Pasley of the Royal Navy participated in Sibe's diving suit tests many times. He even personally wore this set of equipment to participate in the shipwreck salvage work. Colonel Charles later suggested to Sibe that the diving suit could be designed more intimately, so that the divers' activities underwater would be more flexible and would not scratch some tools or debris.

What the Royal Navy absolutely could not have imagined was that his words were not only realized later, but also this design of diving suit was popular in the diving sports world.

Sibe recorded Charles' proposal. In the next hundred years, diving suits were mainly used in the engineering field, so its design changes did not occur much.

Later, British inventor John Lesbridge made some major changes to Sibe's design.

He began to try to make a diving suit with rubber materials and designed a respiration device with compressed air, so that divers are no longer subject to the length of the snorkel and makes oxygen supply less troublesome.

】

However, since this design was not perfect at that time, divers only moved underwater for a very short time to avoid accidents in air turbidity. This was a bold attempt and had a great impact on later generations. However, at that time, it was the mainstream to use manpower and machinery to press air into the air supply hose, and it was relatively safer.

Only after the 20th century did the submersible equipment truly undergo a drastic change.

First of all, with the need of war, French inventor Yinf Leplier designed another compressed air oxygen supply device.

Instead of using John's circular design, it simply sends compressed air into the diver's mouth through a hose, and then discharges the diver's breathing gas from the tube on the other side through a one-way valve.

Immediately afterwards, the diving suit completed the transformation from an engineering diving suit to a competitive sports diving suit.

In order to enable divers to clearly understand how long their air can last, scientists designed a pressure gauge to display the amount of air remaining in the cylinder.

Because the technology of the regulating valve was relatively backward at that time, the loss of this gas cylinder equipment was very large, which led to expensive prices. Except for some diving clubs, most divers engaged in salvage or military engineering diving were still using traditional diving suits and oxygen supply equipment.

Until World War II, countries were rushing to develop brand new diving suits and oxygen supply devices.

A scientist named Glen Orr designed a one-way valve breathing tube and a diving mask mirror.

This kind of thing is for divers to use within ten meters.

During World War II, Frenchmen Jacques Cousto and Emil Gagnan successfully designed the first scuba breathing device. Their armor was much smaller and more flexible than the inventions of Yinfu and John.

With a diving suit made of brand new rubber material, divers can move for a longer period of time within ten meters of underwater.

At the same time, the British Navy and the Italian Navy also developed brand new respiration equipment during World War II and trained combat frogmen.

Later, designers from various countries began to try to use mixed gas volumes to increase the diver's activity time underwater, and this attempt has not stopped until now.

After the end of World War II, the design of rubber diving suits began to develop intimately.

Just as Charles envisioned.

Later, with the development of materials science technology, foam neoprene was developed. This material is a very perfect diving suit material. It has certain elasticity and can also keep warm in sea water at appropriate temperatures. It also has a certain buoyancy and has a smaller resistance.

As diving gradually became popular all over the world, neoprene diving suits were divided into semi-dry diving suits and wet diving suits. The style and cutting of the diving suits also kept pace with the times and even became a fashionable clothing for diving participants.

Later, the diving suit industry has emerged with free diving challenge and other extreme diving sports.

A series of professional competitive diving suits and extreme sports diving suits have been born again. The materials they use are much more functional than ordinary sports diving suits, and of course they are much more expensive.

The development of materials science still requires engineering diving suits to develop in two directions, one is the compression-resistant deep-water diving suit.

For example, the set that Li Xuan wore now is a deep-water pressure-resistant diving suit. It is not very different from its ancestors. It still has many pressure-resistant shell designs, which look like an astronaut, but this set is very advanced and looks much slimmer than a space suit, a bit like the Iron Man's suit.

The other is the commonly used engineering diving suit.

Most of it uses special rubber materials to keep warm and resist pressure.
Chapter completed!