KR20040043273A - Motion apparatus of power using fluid - Google Patents

Abstract

PURPOSE: A power-generating device making use of a fluid is provided to obtain energy by natural conditions regardless of weather or special fuel and to obtain pollution-free electricity and power by driving a power source by such fluids as a wind and water. CONSTITUTION: A power-generating device making use of a fluid comprises a body(10) of a plate body shape the inside of which is a hollow, to function as a floating piece; two pairs of vertical shafts(20) forming sprocket wheels to the upper and lower sides; drive chains forming two pairs of lines; plural blade parts connected to each connection part of the drive chains at regular intervals; a drive shaft vertically disposed while maintaining predetermined height between the vertical shafts; and power generation part(60) connecting the sprocket wheels disposed to one ends of the vertical shafts and the drive shaft. The vertical shafts are installed to both sides of the body. The drive chains are connected to the sprocket wheels installed to each vertical shaft.

Description

Motion apparatus of power using fluid

The present invention relates to a power generator using a fluid, and more particularly, to environmentally friendly pollution-free power and power by driving a power source using a fluid such as wind and water as a product of natural phenomena regardless of climate or separate fuel. It relates to a power generator using a fluid to obtain.

As a result of the use of coal fuels stored underground and under the sea to use many fuel sources for a long time, more and more coal fuels are already in danger of exhaustion.

In addition, as a result of using these coal fuels for a long time without any special measures, it forms in the atmosphere and destroys ozone, which functions to block ultraviolet rays. It forms a chain of natural and environmental destruction such as rising water surface and global warming, and it causes a phenomenon that causes serious natural destruction of the earth.

On the other hand, in response to this trend, it is currently limiting the collection and use of coal fuels and focusing on the leading position while researching globally in developing various new alternative energy sources that can save fuel sources without destroying the environment. The situation is adding.

As the most proposed method for this purpose, a number of facilities and systems capable of generating energy using solar energy, nuclear power, and hydrogen raw materials have been proposed.

However, these alternative energy systems were in the early stages of development at the current level of technology and required expensive capital due to the high price of equipment. Also, if they were commercialized, break-even points would be unrealistic at present. There was a difficult problem of commercialization.

In addition, the system for obtaining other power using these alternative energy sources also has the irrational problem of using the necessary requirements, in particular weather conditions and the use of another fuel.

Therefore, the technical problem to be solved by the present invention, that is, the object of the present invention is created in consideration of the realistic problem with the alternative energy as in the prior art, regardless of the climate or separate fuel, the energy by the conditions of the natural environment It is to provide a power generator using a fluid to obtain.

Another object of the present invention is to provide a power generator using a fluid which can obtain pollution-free power and power by driving a power source using fluids such as wind and water, which are particularly small and are part of natural phenomena.

1 is a plan view showing the overall configuration of a power generator using a fluid according to the present invention.

Figure 2 is a perspective view showing the inlet side main portion applied in the present invention.

Figure 3 is a perspective view showing the main portion of the outlet side applied in the present invention.

Figure 4 is a perspective view showing another installation direction of the braid plate applied in the present invention.

Figure 5 is a perspective view showing another embodiment of the braid plate applied in the present invention.

Figure 6 is a perspective view showing a state in which the wire for connection is another embodiment is installed on the support plate applied in the present invention.

7 is a plan view showing the main portion of the power generating unit applied in the present invention.

8 is a plan view showing another embodiment of the power generating unit applied in the present invention.

Figure 9 is a plan view showing an example of a state that is installed when the power generator is applied to the wind power applied in the present invention.

10 is a plan view showing an example of a state that is installed when the power generator is applied in the present invention using hydraulic power.

11 is a plan view showing another embodiment of a power generating device applied in the present invention.

12 is a perspective view illustrating main parts of FIG. 11;

FIG. 13 is a front view of FIG. 11; FIG.

FIG. 14 is an exemplary view showing a state in which FIG. 11 is installed in a lateral direction. FIG.

15 is an exemplary view showing a state in which FIG. 11 is installed in the longitudinal direction.

* Description of the symbols for the main parts of the drawings *

10; body 11; guide groove

20; vertical axis 21; sprocket wheel

30; drive chain 40; blade part

41; connecting plate 42; support plate

42a; opening 42b; through hole

43; blade plate 44; guide wire

45; connecting chain 50; electric shaft

60; power generating unit 61; electric pulley

63; transmission roller 64; transmission member

65; generator 66; drive member

70; fixed frame 71; transverse frame

72; Bell frame 73; Fastening member

80; spherical 81; connecting wire

82; fixture "L"; inlet side width

"l"; outlet side width

In order to achieve the above object, a first preferred embodiment of the present invention includes: a main body having a plate shape having a hollow body installed in a vertical direction and functioning as a sub-sphere; Two pairs of vertical shafts installed vertically on both sides of the main body, and having sprocket wheels arranged on upper and lower sides thereof and maintaining a constant height; A drive chain connected to the sprocket wheels installed on each of the paired vertical shafts and forming at least two pairs of lines; A plurality of braid parts connected to the connection parts of the driving chain at equal intervals; A transmission shaft disposed in a vertical direction while maintaining a constant height between the two pairs of vertical shafts; Provided is a power generator using a fluid provided with a sprocket wheel provided at one end of the two pairs of vertical shaft and a power generator connected between the electric shaft.

According to a second embodiment of the present invention, a width L between a pair of vertical axes disposed on one side and a vertical axis is a width l between a pair of vertical axes disposed on the other side and a vertical axis. Larger arrangements are preferred.

According to a third embodiment of the present invention, one end of the braid portion is horizontally fixed in both directions with respect to the drive chain side, and one end has a fixed end fixed integrally with a connecting plate on the side of the drive chain and the other end is a free end. A support plate having an edge shape having an opening at least the center portion thereof; One end is rotatably arranged on the upper side or one side of the support plate and the other end is preferably provided with a braid plate formed larger than the shape of the opening to be supported on one side of the opening.

According to a fourth preferred embodiment of the present invention, the braid plate may be supported by the opening edge of the support plate in one direction to seal the opening and open to the opening in the other direction.

In a fifth preferred embodiment of the present invention, it is preferable that the braid plate is at least bisected with respect to the support plate which is a fixed body.

According to a sixth embodiment of the present invention, the support plate has at least one through hole correspondingly formed on the upper and lower edges thereof, and the guide wire penetrates each other in the through hole to prevent the support plate from being excessively folded. Preferably connected.

According to a seventh preferred embodiment of the present invention, the support plate forms an orbit with respect to the upper and lower outer sides thereof, and the connection chains are preferably connected to each other.

In an eighth preferred embodiment of the present invention, at least one side of the two vertical shafts is preferably fixed in a pair by a fixing frame and a fastening member including a plurality of horizontal frames and vertical frames.

According to a ninth embodiment of the present invention, a sub-sphere is disposed above the fixing frame, and the sub-sphere is fixed to the fixed body by a plurality of connection wires.

In a tenth preferred embodiment of the present invention, the sub-spheres are provided in a streamline shape on a plane, and it is preferable to form a flow path on the edge side thereof.

According to an eleventh embodiment of the present invention, the power generating unit may be integrally provided at an upper end of a vertical shaft on which one of the sprocket wheels installed at one end thereof is formed, and at least one rail may include an electric pulley; An electric shaft having at least one triangular point formed between the electric pulleys and disposed in a vertical direction and having an electric roller having at least one rail formed thereon; A transmission member alternately connected to the electric pulley and the electric roller; And one side is preferably connected to the electric roller and the other side is preferably provided with a drive member connected to the generator driven by receiving the power of the electric roller.

According to a twelfth embodiment of the present invention, the electric pulley and the electric roller include a sprocket wheel, and the electric member and the driving member are preferably provided with a chain.

In a thirteenth preferred embodiment of the present invention, the power generating unit is preferably disposed above the subsphere.

According to a fourteenth preferred embodiment of the present invention, it is preferable that the main body is integrally mounted with guide grooves in the longitudinal direction on the outer side and the lower side thereof, and the drive chain is supported between the guide grooves and forms a track.

In addition, another preferred embodiment of the present invention, a plurality of vertical axis which is installed in the radial direction at equal intervals in the vertical direction; A plurality of braid portions disposed radially at regular intervals outside the vertical axis; A sprocket wheel protruding above each of the vertical shafts and fixed to rotate together with the vertical shafts; A drive chain connected to the sprocket wheel; A frame and an auxiliary body disposed between the drive chain and an upper side of the braid unit disposed on an upper side thereof; And a power generation unit disposed on an upper side of the sub-sphere and connected to at least one side of the drive chain.

Preferably, the braid portion has one end fixed horizontally in both directions with respect to the drive chain side, one end has a fixed end integrally fixed to the drive chain side via a connecting plate, the other end is a free end and at least the center is open. An edge-shaped support plate having an opening formed therein; One end is rotatably arranged on the upper side or one side of the support plate, the other end is preferably provided with a braid plate formed larger than the shape of the opening to be supported on one side of the opening.

Further preferably, the drive chain connected to the sprocket wheel is preferably short-circuited and partially connected to one side and the other side with respect to the sprocket wheel.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention for achieving the above object will be described in detail.

1 is a plan view showing the configuration of a power generator using a fluid according to the present invention is shown, Figures 2 to 3 are respectively shown a perspective view showing the main part of the present invention, Figures 4 to 5 is the present invention Figure 6 is a perspective view showing an embodiment of the braid applied to the application, Figures 6 to 8 is a plan view showing another embodiment of the connection device and the power generating unit applied in the present invention, Figures 9 to 10 11 is a plan view showing a state in which a power generator using a fluid according to the present invention is installed, FIG. 11 is a plan view showing another embodiment of the present invention, FIG. 12 is a perspective view showing the main part of FIG. 11 is a front view, and FIGS. 14 to 15 are exemplary views showing an installation state of FIG. 11.

As shown in the drawing, in the power generating apparatus using the fluid applied in the present invention, the skeleton is held by the main body 10 having a plate shape installed in the vertical direction.

The main body 10 is preferably provided so that the outer surface is sealed by the plate body so that the inside is formed of a hollow body for the function of the below-described spherical body, it may be configured by inserting a separate sub-sphere inside the plate body. .

Both sides of the main body 10 are installed in the vertical direction, and the sprocket wheel 21 is installed on the upper and lower sides, and maintains a constant height and is provided with two pairs of vertical shafts 20 disposed at the front and rear.

Preferably, the width L between the pair of vertical axis and the vertical axis disposed on the one side is preferably larger than the width l between the pair of vertical axis and the vertical axis disposed on the other side. Do.

In the sprocket wheel 21 provided on each of the paired vertical shafts 20, the drive chain 30 forming at least two pairs of lines arranged at least up and down forms an endless track and the sprocket wheel 21 Connected to) is installed.

Preferably, the main body 10 has a guide groove 11 is integrally mounted in the longitudinal direction above and below the outer side thereof, and the drive chain 30 is supported between the guide grooves 11 and tracks the tracks. It is preferable to form.

Each connecting portion of the drive chain 30 is provided with a plurality of braids 40 connected at equal intervals.

The braid portion 40 has one end portion fixed horizontally in both directions with respect to the drive chain 30 side, and one end portion has a fixed end fixed integrally with a connecting plate 41 on the drive chain 30 side. Is a free end and has an edge-shaped support plate 42 having an opening 42a open at least in the center portion, and one end thereof is rotatably arranged on the upper side or one side of the support plate 42 via a rod-shaped rotation axis, and the other end portion thereof. Is provided with a braid plate 43 formed larger than the shape of the opening 42a to be supported at one side of the opening 42a.

3 to 4, the braid plate 43 is supported at an edge of the opening 42a of the support plate 42 in one direction to seal the opening 42a and open to the opening 42a in the other direction. It is desirable to be.

In another embodiment, the braid plate 43 may be installed as a single with respect to the support plate 42, which is a fixed body, as shown in a to b of FIG. It may be installed.

In addition, the support plate 42, as shown in Figure 6, at least one or more through-holes 42b correspondingly formed on the upper and lower edges thereof, the support plate 42 is excessively folded in the through-holes 42b Guide wires 44 to prevent falling may be connected through each other at regular intervals.

On the other hand, the support plate 42, as shown in Figure 3, so as to maintain the same interval, the upper and lower outer tracks and the connection chain 45 is preferably connected to each other and fixed.

Preferably, the connecting chain 45 is preferably installed to prevent the sagging of the connecting chain 45 or smooth operation by installing a separate sprocket wheel on the vertical shaft 20 which is a turning part.

Of course, if a wire is used instead of the connection chain, a sprocket wheel may not be installed and a separate pulley may be installed.

1 to 7, the electric shaft 50 is disposed in the vertical direction while maintaining a constant height between the two pairs of vertical shafts 20, and provided at one end of the two pairs of vertical shafts 20. The power generating unit 60 is connected between the sprocket wheel 21 and the electric shaft 50.

Preferably, the power generating unit 60 is integrally provided at the upper end of the vertical shaft 20, the sprocket wheel 21 is installed on the one end side and the electric pulley 61 is formed with at least one rail, An electric shaft 50 having an electric roller 63 having at least one rail formed at least a triangular point between the electric pulleys 61 and having at least one rail formed thereon, the electric pulley 61 and the electric rollers; The driving member 64 is staggered with respect to the 63 and one side is connected to the transmission shaft 50 and the other side is a driving member connected to the generator 65 driven by the power of the transmission roller 63 ( 66).

Preferably, as shown in FIG. 8, the electric pulley 61 and the electric roller 63 may be provided as sprocket wheels 21, and correspondingly, the electric member 64 and the driving member 66. May be provided as a chain.

On the other hand, when the power generator using the fluid according to the present invention, for example, installed on the land to be described later to operate by wind power, at least one side or both sides of the two vertical shafts, as shown in Figure 9, It is preferable to use the fixed frame 70 and the fastening member 73 consisting of the horizontal frame 71 and the vertical frame 72 to be fixed in a pair.

In addition, when the power generator using the fluid according to the present invention is installed in the counter-flow direction, for example in the flowing water, or installed on the shore with a large difference between tides, as shown in Figure 10, the upper side of the fixed frame 70 It is preferable to arrange | position the subsphere 80 to the to-be-fixed object 82 which is a ground structure by the many connection wire 81 so that the said subsphere 80 may not flow in the flowing water.

On the other hand, according to another embodiment of the present invention, as shown in FIG. 11, the sprocket wheel connected to the vertical axis by a plurality of drive chains or a drive chain separated by a plurality of drive chains may be connected by a drive chain, in another embodiment Since the main component, which is a structural feature to be applied, is substantially the same as the component mentioned in the above-described configuration of the first embodiment, a separate configuration and operation description thereof will be omitted, but the same parts and members will be given the same reference numerals.

The operation of the present invention configured as described above will be described.

In other words, the power generator using the fluid according to the present invention is installed on the land, coast or riverside depending on the installation location, but the operation principle is the same, so only one component will be described.

However, when the power generator using the fluid according to the present invention is installed on land, the upper and lower sides of the main body 10 are connected by separate frames and a plurality of fastening members. In connection with anchors installed on land by a number of wires, etc. will have to be fixed.

In the fixed state as described above, first, the power generator using the fluid according to the present invention face each other as shown in Figs. A portion having a large width L of the vertical shaft 20 and the vertical shaft 20 provided in the direction facing the wind or the direction in which the water flows forms a portion having a wide width L to form an inlet side. The narrow width l of the 20 and the vertical shaft 20 are provided so as to form the outlet side.

In the above state, when wind or water, which is fluid toward the inlet side, flows in the direction of the arrow, the flow velocity and pressure of the fluid face each other and strike the braid plate 43 of the braid portion 40 installed inward. The braid plate 14 is generated a resistance force by the fluid.

As described above, each braid plate 43 located inside is moved toward the outlet side by the pressure of the fluid generated by the braid plate 43.

That is, the braid plate 43 is supported by the structure from the inlet side toward the outlet side with respect to the support plate 42, the plurality of facing braid plate 43 is orbitally moved to the outlet side, and eventually the outlet Reverse the vertical axis 20 provided on the other end side.

When the braid plate 43 reverses the vertical axis 20 provided at the other end as described above, the pressure of the fluid applied from the upper side to the lower side in the drawing expression is also imparted to the braid plate 43 side arranged on both sides as well. However, due to the pressure of the fluid imparted to the braid plate 43 located on both outer sides inverted at the outlet side vertical axis 20, the braid plate 43 is represented in the figure from the opening 42a side of the support plate 42. As described above, the opening 42a is formed in the support plate 42.

Therefore, the braid plate 43 disposed on the inner side facing each other is rotated by a large force by the pressure of the fluid, and the braid plates 43 disposed on both outer sides pass through the opening 42a formed in the support plate 42. It is infinitely rotated while drawing a track without a large resistance generated by the fluid.

On the other hand, as the braid plate 43 is rotated as described above, the drive chain 30 which eventually forms an endless track is rotated to form an orbit, and one end of the inlet and outlet sides engaged with the drive chain 30 is rotated. The sprocket wheel 21 provided at the other end and the electric pulley 61 mounted above the vertical shaft 20 on the inlet side are continuously rotated.

As a result, the electric pulley 63 mounted on the upper end of the vertical shaft 20 disposed on the inlet side rotates by the rotational force of the sprocket wheel 21, and the electric member 64 connected to the electric pulley 63 rotates. The rotational force is transmitted to the transmission shaft 62.

Accordingly, the electric shaft 62 is continuously rotated and transmits the rotational force to the generator 65 through the driving member 66 to operate the generator, thereby obtaining power through the operated generator.

On the other hand, since the support plate 42 continuously rotating with the braid plate 43 as described above is continuously installed at a constant distance from each other by the guide wire 44 or the connecting chain 45, It rotates repeatedly while maintaining its position, and such rotational force is accelerated with time and rotates at high speed.

Therefore, it is possible to obtain power as a power source by using a fluid such as wind or water.

On the other hand, the power generator using the fluid according to the present invention is fixed to the float 80 in the state fixed to the fixed frame 70 consisting of the transverse frame 71 and the longitudinal frame 72, as shown in FIG. In order to prevent loss and damage caused by using a plurality of connection wires 81 can be installed on the beach shore where the difference between the downstream of the river or the difference between tidal river in the fixed state 82, such as anchor. .

At this time, the spherical body 80 according to the present invention is located on the upper side of the water surface, and all the components are positioned in the water at a lower position than the spherical body 80, and both sides of the spherical body 80 and the spherical body 80 A flow path is formed between both side surfaces of the body 10 and the inner surface of the main body 10 facing each other, and water flows as shown by the arrow of FIG. 10 to obtain power.

Of course, in the case of obtaining power using water in this way, the inlet side is installed in the reverse flow direction, and thus water flowing through the inlet side is discharged through the outlet side and thus more power can be obtained.

More specifically, in the case of installing the power generator using the fluid according to the present invention as described above in a river, a river or a beach, the flow path between the spherical body 80 and the braid plate 43 located in the inner side adjacent thereto Is formed to form a flow path through which water is introduced.

In addition, the sub-sphere 80 is raised or lowered according to the water level is located on the water surface.

On the other hand, at this time, it is preferable that the device capable of generating electricity such as the generator 65 applied in the present invention is disposed above the sub-sphere 80.

However, when the power generator using the fluid applied in the present invention is installed in freshwater rivers, rivers or seawater beaches, metal products such as chains can be replaced with high strength synthetic resins, or are specially plated to resist corrosion. It is preferable to use after.

On the other hand, the present invention has been represented and described only in the preferred embodiment of the present invention, but not limited to this, the height of the vertical axis is changed to high or low in consideration of the installation location and environment of the power generator using the fluid according to the present invention. It is possible to use, and the height and length of the support plate and the braid plate can be adjusted accordingly.

In addition, although the first preferred embodiment of the present invention has been described so far, the present invention is not limited thereto and may be modified and used by various design changes as shown in FIGS. 11 to 14.

That is, as shown in Figs. 11 to 14, the power generating device composed of a plurality of groups can be used while appropriately converting the arrangement state in the longitudinal direction or the transverse direction according to the environmental conditions such as the width and depth of the river. Since the method, the operation, and the series of operations for obtaining electricity are the same as in the first embodiment, a separate description thereof is omitted.

On the other hand, the support plate for supporting the braid plate in Figures 11 to 14 is also preferably fixed by a separate connection chain, or guide wire.

As described in detail above, according to the power generator using the fluid according to the present invention, there is an effect of obtaining environmentally friendly energy by the condition of the natural environment regardless of the climate or a separate fuel.

In addition, the present invention also has the effect of obtaining pollution-free power and power by driving a power source using fluids such as wind and water, which are small in number and are part of natural phenomena.

So far, preferred embodiments of the present invention have been described in detail, but are not limited thereto, and various changes and modifications may be made by those skilled in the art.

Claims (17)

A main body installed in a vertical direction and having a plate body shape having a hollow body to function as a sub-sphere; Two pairs of vertical shafts installed vertically on both sides of the main body, and having sprocket wheels arranged on upper and lower sides thereof and maintaining a constant height; A drive chain connected to the sprocket wheels installed on each of the paired vertical shafts and forming at least two pairs of lines; A plurality of braid parts connected to the connection parts of the driving chain at equal intervals; A transmission shaft disposed in a vertical direction while maintaining a constant height between the two pairs of vertical shafts; And a sprocket wheel provided at one end of the two pairs of vertical shafts and a power generating unit connected between the electric shafts. The method of claim 1, The width (L) between the pair of vertical axis and the vertical axis disposed on the one side is larger than the width (l) between the pair of vertical axis and the vertical axis disposed on the other side Power generator used. The method of claim 1, One end of the braid portion is horizontally fixed in both directions with respect to the drive chain side, one end has a fixed end integrally fixed to the drive chain side via a connecting plate, the other end is a free end and at least a central open opening edge Shaped support plate; One end is rotatably arranged on the upper side or one side of the support plate, the other end is a power generating device using a fluid characterized in that provided with a braid plate formed larger than the shape of the opening so as to be supported on one side of the opening. The method of claim 3, wherein The braid plate is supported by the opening edge of the support plate in one direction to seal the opening and in the other direction is a power generating device using a fluid comprising a. The method of claim 1, The braid plate is a power generating device using a fluid comprising at least bisected with respect to the support plate to be fixed. The method of claim 1, The support plate has at least one through hole correspondingly formed on the upper and lower edges thereof, and the power generation using the fluid includes a guide wire connected to each other through the guide wire for preventing the support plate from being excessively folded. Device. The method of claim 6, The support plate is a power generating device using a fluid further comprising a connecting chain is connected to each other to form an orbit about the outside, the lower side. The method of claim 1, At least one side of the upper and lower sides of the two pairs of vertical axes is a power generating device using a fluid further comprising a fixed frame and a fastening member consisting of a plurality of transverse frames and longitudinal frames. The method of claim 8, A floating body is disposed above the fixing frame, and the floating body is fixed to the fixed body by a plurality of connection wires. The method of claim 9, The substructure is provided in a streamline shape on the plane, the power generator using a fluid, characterized in that to form a flow path on the edge side. The method of claim 1, The power generating unit is integrally provided at an upper end of a vertical shaft on which the sprocket wheel is installed at one end and an electric pulley having at least one rail formed thereon; An electric shaft having at least one triangular point formed between the electric pulleys and disposed in a vertical direction and having an electric roller having at least one rail formed thereon; A transmission member alternately connected to the electric pulley and the electric roller; And One side is connected to the electric roller and the other side is a power generating device using a fluid comprising a drive member connected to the generator driven by receiving the power of the electric roller. The method of claim 11, The electric pulley and the electric roller comprises a sprocket wheel, the power member and the drive member is a power generating device using a fluid further comprising a chain provided. The method according to claim 9 or 11, The power generator using a fluid, characterized in that disposed on the upper side of the sub-sphere. The method of claim 1, The main body is a power generating device using a fluid further comprises a guide groove integrally mounted in the longitudinal direction on the outer side, upper and lower, the drive chain is supported between the guide groove and forming a track. A plurality of vertical shafts installed radially at equal intervals in the vertical direction; A plurality of braid portions disposed radially at regular intervals outside the vertical axis; A sprocket wheel protruding above each of the vertical shafts and fixed to rotate together with the vertical shafts; A drive chain connected to the sprocket wheel; A frame and an auxiliary body disposed between the drive chain and an upper side of the braid unit disposed on an upper side thereof; And A power generating device using a fluid disposed on one side of the upper portion and provided as a power generating unit connected to at least one side of the drive chain. The method of claim 15, One end of the braid portion is horizontally fixed in both directions with respect to the drive chain side, one end has a fixed end integrally fixed to the drive chain side via a connecting plate, the other end is a free end and at least a central open opening edge Shaped support plate; One end is rotatably arranged on the upper side or one side of the support plate, the other end is a power generating device using a fluid characterized in that provided with a braid plate formed larger than the shape of the opening so as to be supported on one side of the opening. The method of claim 15, The drive chain connected to the sprocket wheel is short circuited so that one side and the other side is overlapped with respect to the sprocket wheel and installed in connection with the fluid.