CN114452626A - Corrugated diving flipper - Google Patents

Abstract

The invention relates to a corrugated diving fin, belonging to the technical scheme of the invention patent of methods in the field of entertainment products necessary for human life. The corrugated diving flipper has the characteristics that the back of the flipper and the outer surface of a flipper sheet are S-shaped by changing the appearance structure of the common flipper, so that the flipper can swim farther than the common flipper, and the propulsion force of the flipper when kicking water is improved. Similarly, the longer conventional flipper is shortened in a certain proportion, and the appearance structure is changed into the characteristics of a flipper with similar corrugations, so that the distance which can be reached by the conventional long flipper even exceeds the distance of the original long flipper after the flipper kicks water once. The above method has the function of increasing the propulsive force for long or short diving flippers of various types, so the method has certain application market.

Description

Corrugated diving flipper

Technical Field

The invention of the present application relates to a corrugated diving fin. (FIG. 1).

Background

The flipper is an indispensable part in diving, and provides a device for providing advancing power in water. The flippers are short and long, but for travelling with long flippers, this is actually a nuisance.

①

A suitable pair of free-diving flipper packs is typically over 40 inches (in) 1.016 meters) long. The need to carry a pair of free-diving flippers as carry-on luggage to an airplane is in violation in most airlines because the length of a free-diving flipper is much longer than the maximum size of a typical airline's carry-on luggage, and cannot be carried around, only shipping (r).

The improvement of the corrugated diving fin that the appearance structure of the common fin is changed to lead the outer surface of the fin back and the fin sheet to present a shape similar to S, thus the characteristic of obviously improving the propelling force of the original fin kicking water can be generated.

Similarly, the longer common flipper is shortened according to a certain proportion, and the appearance structure is changed into the flipper characteristic similar to corrugation, so that the distance which can be reached by the common long flipper even exceeds the distance of the original long flipper when the flipper kicks water once is not shortened before, which is the purpose of the scheme of the application.

The above method has the function of increasing the propulsive force for long or short diving flippers of various types, so the method has certain application market.

Reference to electronic documents

The method comprises the following steps: selection of diving flippers and selection of flippers for attacking

Searching dogs and asking questions: the area of a picture nail cap is 0.8cm2, and the area of a picture tip is 5 x 10-4cm2

Disclosure of Invention

Modern flippers have two basic styles: adjustment and foot-covering type (I), we wear the foot-covering type to carry out underwater diving comparison experiment, so the short foot-covering web is briefly described below (figure 1), and the method is also applicable to the adjustment.

The outer surface of the fin is mainly composed of three major parts, namely a sole surface, a instep surface and a fin sheet. Here, the ordinary flipper is abbreviated as "a flipper", and the corrugated diving flipper is abbreviated as "b flipper".

The sole surface of the flipper is a standing function, so the sole surfaces of the flipper A and the flipper B are the same. The back of the foot web and the web sheet are the surfaces for kicking water, a plurality of transparent rubber bars (figure 2) are added on the foot web, a plurality of small holes are punched on the back of the foot and the web sheet of the transparent rubber bars and the foot web, and then the transparent rubber bars and the back of the foot and the web sheet are connected by thin lines, so that the foot web becomes a foot web B, and the simple manufacture of the corrugated diving foot web is completed.

That is, the back of the flipper kicked on the water surface and the outer surface of the flipper sheet are shaped like S-shaped ripples by a physical method of changing the appearance structure of the common flipper.

Underwater experiments with swimming pools proved: a corrugated diving fin has the effect that the diving fin can swim farther at a time than the common fin, namely the propulsion of the kicking of the fin is increased. The concrete brief description is as follows:

method for increasing propulsive force of flippers kicking water

The larger the web sheet, the better

The larger the fin sheet is, the wider the fin surface is, in short, the larger the fin sheet is, the more you can swim farther after kicking water once. But in contrast to this, foot power is required, suggesting that the primary diver avoid selecting an excessively large flipper (r).

(II) Correct curvature with corrugation

I buy a children's water polo toy (figure 5) from the net, cut a mouth about 20 centimeters long on the epidermis of children's water polo, let water get into inside, and put a safe and reliable density slightly to be greater than the little weight of water in children's water polo inside, regard 4 shoelaces about 0.5 meters long as the rope of end to end, the total length of the rope of connection is about 1.8 meters totally like this.

One end of the rope is connected to the small water polo, and the other end of the rope is wound and unwound by an experimenter A standing on the swimming pool side, so that the water polo for children can be immersed 20-30 cm below the water surface.

Then another experimenter B erects in a small swimming pool with water depth of 1.2m and holds various batting sticks to perform experiments one by one (figure 4, figure 5, figure 6 and figure 9), namely, the batting stick is hit by force once, and the farthest bat is hit by force, namely the bat is the good bat (figure 5).

As a result of the experiment, the second version (corrugated bar spoon) of fig. 6, but not the third version (curved scoop), was the best. This indicates that the radian is moderate to achieve the purpose of pressure reduction. The second is a commercially available, regular underwater hockey stick.

In a word, a certain proper radian and the appearance characteristic of the corrugated rod rice scoop, namely the propelling force of the second style is obviously improved compared with that of the first style.

(III) elastic material with certain hardness

It is known to lay special hard tiles around the swimming pool. When the sole plate of the tile is used for forcibly kicking a hard special tile, the distance for flushing the tile out is certain to be greater than the distance for flushing the tile out after the sole plate is used for forcibly kicking a soft water flow.

This fact explains that: the larger the density and hardness of the material, the greater the propelling force. And vice versa.

Therefore, in order to increase the propelling force of the flipper kicking water, a material which is elastic, has excellent reverse rebound force, has high density and has good foot force feeling is selected as much as possible.

(IV) the relationship between the length of the fin and the force of the foot

The fin sheet of the flipper becomes longer and also pushes the water surface more, and is soft, so that the force transmitted from the ankle to the tip of the flipper can be extended in time, and the displacement can be made as much as possible with the least effort.

However, the strength of the foot is increased while the flipper is lengthened, so that the purpose of improving the water kicking efficiency of the flipper is achieved by shortening the length of the common flipper and changing the appearance structure of the corrugated diving flipper.

Principle for shortening length of fin sheet

The approach bridge refers to a bridge building which is positioned at two ends of a main bridge and connects a wharf with a land area. Typically at the ends of the bridge. On both sides of each head of the bridge, a ladder way and a ramp are respectively arranged as approach bridges (fig. 7 and 8).

The length ratio of the flipper A to the flipper B is similar to the length ratio of the horizontal projection of a ladder way and a ramp of an approach bridge. Although both walkways have the same vertical ground level, the horizontal projected ramp is significantly smaller than the ramp, as in fig. 8. The same applies to fig. 7.

If we consider the back of the flipper and the integral upper surface of the web to be connected, the total length of the ramp road of the approach bridge; the corrugated flipper B is compared with the shape of a shortened slope road, namely a stair road, and the ratio of the horizontal projection lengths of the corrugated flipper B and the shortened slope road is one of the design ideas for manufacturing the flipper B.

In other words, because of two 180 degree C words, one S-shape (fig. 13, 14) can be formed. I refer to the common flipper sold in the market, which is called the first step for short (figure 1), and refer to the corrugated flipper with the second step (figure 1) for short when the user takes water in the diving process, wherein the corrugated flipper is similar to the second type (figure 6) of a meal spoon with proper curvature, and the principle of shortening the length of the flipper is realized.

Application scope

The long or short diving flippers use the design scheme of the corrugated flipper principle, have the advantages of increasing the propulsive force of the flipper for kicking water and having certain effect of shortening the length of the long flipper sheet, thereby having certain practicability market.

Expanding the content:

according to the principle of thumbtack pressure, according to the arrangement mode of sharp spines of the appearance size of the sea cucumbers, the common long-sleeve and long-trousers swimwear is bought on the Internet, and the garment is a one-piece or split upper garment sleeve type or a cardigan type, and a professional is asked to use a small machine to heat and scald, and 20 # circular glass hot-drilled jewels are adhered to the outer surface of the cloth. The swimwear with the hat, the long-sleeve clothes and the trousers with the circular truncated cone shape hot-fixed rhinestones, which is called as the barbed decompression swimwear for short, has the decompression function through the comparative experiment in the swimming pool. Namely, after wearing the swimwear with the pressure-reducing cap, the long-sleeve clothes and the trousers, the pressure of water on the body is obviously reduced. The perceptually better scenario for our experiment was (fig. 15, fig. 16, fig. 17, fig. 18):

wear the pressure reducing cap with the thorn, wear the pressure reducing integrated long-sleeve trousers swimsuit with the thorn, wear the swimming silica gel to scratch the palm with both hands, wear a kind of ripple dive flipper with both feet, for the best scheme of increasing the propulsive force of the flipper kicking water.

The 20 # round glass hot-fix rhinestone and 250 swimming caps only have three rows with big and small front parts, symmetrical back brains are not stuck, and the reason why the old is difficult to stick is provided.

The upper part, the lower part, the front part and the rear part are respectively provided with 6750 integrated long-sleeve swimming suit; 3750 pieces of split sleeve type long-sleeve swimsuit; 5000 pieces of split zipper cardigan type long-sleeve swimsuit; 3000 swimming trunks.

For convenience, the boss gives me a round table shape solid drill with the same size, namely a No. 20 round glass hot-fix drill, so that a better decompression arrangement and material selection scheme is used. In summary, the underwater experimenter, through several times of underwater swimming pool experiments, has a feeling that the body is obviously reduced in pressure and the advancing speed is increased in comparison experiments of the pressure of the surrounding water and air.

Drawings

The attached drawings of the patent specification are sixteen:

comprehensive chart

Fig. 1 two kinds of solid pictures of flipper

FIG. 2 is a solid view of a transparent glue stick

FIG. 3 free latent entity diagram

FIG. 4 solid view of an underwater hockey stick

FIG. 5 is a diagram of underwater ball playing entity

FIG. 6 is a front view of a spoon (I)

Fig. 7 schematic diagram (I) of stairs and ramp of approach bridge

Fig. 8 schematic diagram (two) of stairs and ramp of approach bridge

FIG. 9 is a front solid view of the two spoons

FIG. 10 is a drawing showing the physical drawing of the free diving S-shaped flipper

FIG. 11 is a comparison graph of the free-diving configuration and the S-shaped eel

FIG. 12 is a diagram of S-shaped entity of eel

Fig. 13 free diving C type flipper stroke solid picture (one)

Fig. 14 free diving C type flipper stroke entity picture (two)

FIG. 1520 ironing diamond entity view

Figure 16 front solid view of pressure reducing one-piece swimsuit

Figure 17 reverse solid view of pressure reducing one-piece swimsuit

Figure 18 front solid view of pressure reducing split long sleeve cardigan swimsuit

Detailed Description

First, experiment summary

The experimental diving in a swimming pool with the length of 20 meters, the water depth of 1.2 meters and a flat ground. Through simple comparative experiments involving professionals in diving, the following conclusions are drawn:

equipment of an underwater experimenter: the experimenter wears the pressure reducing swimming cap with the spines, wears swimming silica gel to scratch the palms with the hands, wears the pressure reducing conjoined long-sleeved trousers with the spines, wears corrugated flippers on the two feet to be the best scheme, namely, the distance for the two hands to scratch water once and wash away is the farthest.

Second, theoretical basis

The method comprises the following steps: selection of diving flippers and selection of flippers for attacking

The flipper plays a crucial role. If the flipper is sufficiently known, the flipper that is most suitable for oneself can be found. The characteristics of the fin, which is made of three materials, namely "rubber", "plastic" and "composite material", are described.

Flipper (Fin) is a device that provides us with forward power in water. The flippers vary in kind, and are also varied in wearing comfort, driving force and appearance. The selection of the material is important

A rubber flipper having an excellent reverse rebound force. The forward thrust is obtained by selecting a suitable flexible fin in accordance with the foot force due to the resistance of water, and therefore, it is necessary to have appropriate flexibility. The length of the web sheet, the thickness of the keel, etc. all affect the softness thereof. Especially, the flipper with soft fin sheet and narrow keel part can be bent more laborsavingly, and people with weak foot force are recommended to use the flipper.

The rubber flipper has the advantage of utilizing the specific rebound force of rubber to obtain more effective driving force without depending on the foot force. Meanwhile, the foot is not excessively burdened, and the length of the web piece and the size of the foot covering position are suitable for Asians.

What is the advantage of the plastic flipper?

Most of the plastic flippers are light and convenient, so that the plastic flippers have great advantages in terms of reducing the weight of luggage which is more concerned in foreign trip. Meanwhile, the plastic material can potentially increase the speed.

The composite flipper is manufactured by fusing two typical materials of rubber and plastic. In short, it is characterized by combining the advantages of two materials: the rubber material has high elasticity, and the plastic material gives a design feeling. Such flippers are therefore most suitable for a diver who wishes to obtain both characteristics. Not only has cool and dazzling shape, but also makes the swimming more relaxed

The diver can conveniently swim in water while pursuing the design feeling of the model. The combination of plastic and rubber combines strength and flexibility, thus having extraordinary driving force and making the swimming more flexible.

The biggest advantages of the composite flipper are as follows: has the high elasticity of the rubber flipper and the design feeling of the plastic flipper. Recommends to figure-oriented divers ● "adjustment" or "foot-over"

Length and shape of web sheet

The web surface is usually wider, in short the larger the web sheet is, the more you can swim farther after kicking water once. But in contrast to this, foot power is required, suggesting that the primary diver avoid selecting an oversized flipper.

Searching dogs and asking questions: the area of a picture nail cap is 0.8cm2, and the area of a picture tip is 5 x 10-4cm2

An area of the nail cap of figure 0.8cm2, an area of the apex of figure 5X 10-4cm2, a pressure of the human finger against the nail cap of 40N, how much Pa each of the pressure of the hand against the nail cap of figure and the pressure of the apex of figure against the wall? The ratio of the pressure P2 of the spike tip against the wall to the pressure P1 of the hand against the spike cap (fig. 16).

It is known that: F40N, S1 0.8cm2 8 × 10-5m2, S2 5 × 10-4cm 25 × 10-8m2

Solving the following steps: pressure p 1? Pressure p 2?

Solution:

the ratio of the pressure P2 of the thumbtack point against the wall to the pressure P1 of the hand against the thumbtack cap is 1600 (times)

P2/P1 Pa 8 × 108Pa/5 × 105Pa 1600 (times)

(1) Pressure of hand to the cap of the drawing pin:

(2) because the solid is capable of transmitting pressure,

therefore, the wall is subjected to a pressure of F-40N,

figure pressure of nail tip against wall:

therefore, the pressure of the hand on the pin cap is 5X 105Pa, and the pressure of the pin tip on the wall is 8X 108Pa.

(3) Ratio of pressure P2 of the tip of the pin against the wall to pressure P1 of the hand against the cap of the pin

P2/P1 Pa 8 × 108Pa/5 × 105Pa 1600 (times)

The following results are obtained from (3):

when we extended a finger and applied 1 unit of pressure to the cap, the pressure of 1600 units was actually changed from the initial 1 unit pressure to the wall by the sharp end of the pin, since the area of the sharp end was much less than that of the cap.

Claims (3)

1. An additional equipment of a corrugated diving fin comprises (1) a pair of common diving fins (2), a plurality of transparent rubber rods (3) and a plurality of strings.

2. The corrugated fin as claimed in claim 1, which is applied to long or short fins by changing the external shape of the conventional fin to make the back and the outer surface of the fin sheet in an S-shape, thereby having a characteristic that the fin can swim farther at one time, i.e., improving the propulsion force of kicking water.

3. A corrugated diving fin according to claim 1, which has the web piece length shortened for the long fin, as a result of the addition of the corrugated transparent glue bar, the distance that the fin dashes out after kicking water once is also the distance that the usual long fin can reach when not previously shortened, even exceeding the distance of the original long fin.

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