JP2006312155A - Underwater washing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an underwater washing apparatus, which can wash the surface of an object to be washed in water such as marine algae with high washing power/cleaning power/separation power in water and, at the same time, even when the periphery of the apparatus is photographed by an underwater camera, can clearly show the image without contamination of water in the region with the separated pieces/mud and the like and is excellent in workability in water. <P>SOLUTION: In this apparatus, a disk 4 comprising an upper disk 4a and a lower disk 4b superimposed on top of each other is mounted on the lower end of a hollow rotary shaft 3 supported pivotably on an apparatus body 1. A direct groove passed through a disk center is provided on the lower face of the upper disk 4a. The upper disk 4a together with the superimposed lower disk 4b forms a water supply passage 10. An annular groove 13 is formed on the circumference of the lower face of the lower disk 4b. A circumferential and downward continuous hole is provided between the passage end of the water supply passage 10 and the annular groove to form a water spout nozzle 11 by the continuous hole. A propeller 6 is mounted above the rotary shaft 3. An underwater camera 14 is mounted above the apparatus body. Further, this apparatus is constructed so as to be travelled through tires 15. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention includes seaweeds, garbage, dirt, shellfish, etc. attached to the surface of the object to be cleaned such as underwater laver nets, ginger nets, stationary nets, hulls, walls of underwater structures, etc. The present invention relates to an underwater cleaning apparatus for cleaning by fountain flow for cleaning, removing and peeling.

JP, 2001-276754, A is known as an underwater washing device which rotates a fountain nozzle and cleans the surface of a thing to be washed with a fountain flow of a fountain nozzle.
However, this fountain nozzle is oriented in the circumferential direction, and there is a flat rotating body inside the fountain nozzle. The fountain of the fountain nozzle is open on both the outer side and the inner side. Yes.
Therefore, when the fountain hits the surface to be cleaned, it escapes outward or inward or outward and upward. For this reason, a strong fountain pressure cannot be applied to the surface to be cleaned, and there is a problem that the cleaning power, the removal power, and the peeling power are weak.
Furthermore, since the surface of the fountain water is discharged widely, seaweed fragments, mud, dirt, shellfish, etc. separated from the water flow all diffuse toward the outer periphery, and the seawater is widely polluted to the periphery of the device. Even if the surface of the object to be cleaned is photographed with the camera, the surface condition becomes unclear, and even if the camera is used, the image of the cleaning condition is unclear, and the cleaning surface state is not known and accurate cleaning work cannot be performed. There is a problem.
JP 2001-276754 A

  The problem to be solved by the present invention is to solve these conventional problems and to provide an underwater cleaning apparatus having high cleaning power, cleaning power, and peeling power. The second problem is that the surface of the object to be cleaned around the fountain nozzle can be clearly photographed by the underwater camera so that the operability and the cleaning operation can be performed accurately.

The configuration of the present invention that solves this problem is as follows.
1) A rotation axis substantially perpendicular to the surface is provided at a bottom position facing the surface of the apparatus main body that can travel along the surface of the underwater object to be washed, and at a position separated from the rotation axis by a predetermined length in the radial direction. A fountain nozzle is disposed, the fountain nozzle is connected to a rotation shaft, a means for pumping water to the fountain nozzle is provided, water is jetted from the fountain nozzle while rotating the fountain nozzle, and the surface is covered with the jet water. In an underwater washing device for washing,
The fountain flow from the fountain nozzle is constrained to an annular range of a predetermined width in the radial direction from the fountain nozzle, the discharge of the water flow from the upper side and the side is suppressed, and a water flow sealing body having an open lower surface is attached. The submersible cleaning device is characterized in that the surface of the object to be cleaned can be washed with a fountain flow in an annulus, and the surface can be cleaned extensively by running, so that the surface can be cleaned widely 2) Rotating shaft of the fountain nozzle A disk that covers an area larger than the radius of the surrounding rotation trajectory is fixed to the rotating shaft so that it can rotate, and a plurality of water supply passages to the fountain nozzle are provided in the disk, and the lower part of the disk has a predetermined width at the bottom and opens downward An annular groove is provided, a communication hole extending in the circumferential direction is formed between the end of the water supply channel and the annular groove, the communication hole is used as a fountain nozzle, and the water flow sealing body is configured by the groove wall of the annular groove. The nozzle opening of the fountain nozzle opens the annular groove. The underwater cleaning device according to 1) above, wherein the fountain nozzle is arranged so as not to protrude downward from the lip and in the circumferential direction, and is inclined so that the inner side surface of the sealing body extends in the direction of the rotation axis as it is downward. The underwater washing apparatus according to 1) or 2), wherein the fountain flows in a direction perpendicular to the surface and flows inward to reduce the outward water flow. 4) The fountain nozzle / sealing body and the rotating shaft are rotated. The underwater washing apparatus 5) according to any one of 1) to 3), wherein the driving force is a reaction force of the fountain nozzle. 5) A propeller is attached to the upper end of the rotating shaft, and the propeller is rotated by the rotation of the rotating shaft. A downward prevention plate having a lower end below the lower end of the water flow sealing body so that the apparatus main body is pressed against the surface of the under water cleaning object by the thrust of the propeller, and the water flow sealing body does not directly contact the surface of the underwater cleaning object. 1) provided in the main body of the apparatus 4) fitted with underwater camera which can shoot the surface state of the outer periphery of the underwater washing device 6) sealing member in the apparatus main body according to any one, the 1) to 4) in water washing device according to any one.

  According to the present invention, the fountain flow is prevented from flowing out to the outer side surface / inner side surface and upward by the sealing body, and mainly directed forward in a limited narrow annular range, so that fountain energy is less dissipated and high. Has cleaning power, removal power, and peeling power. Further, by reducing the diffusion of the water flow to the outer periphery, the image taken by the camera can be made clear, and the cleaning work / operation can be performed easily and accurately.

The sealing body of the present invention has a structure in which the sealing body is fixed to the rotating fountain nozzle or rotating shaft and rotates together, and the sealing body is fixed to the apparatus main body side, and only the fountain nozzle is rotated into the sealing body. However, a structure in which the sealing body and the fountain nozzle are fixed and rotated together is preferable because the structure can be easily manufactured.
In the present invention, it is preferable to provide a face plate that covers the central region of the bottom surface of the device inside the water flow sealer so that the flow of contaminated water does not occur upward from the inner central region.
The fountain nozzle of the present invention may be a method in which the pipe connected to the water supply channel is disposed or bent so as to face downward in the circumferential direction, or the circumferentially downward communicating hole in the thick sealing body And the communication hole may be formed so as to communicate with the water supply channel.
The inner side surface of the sealing body is inclined in the direction of the rotation axis (inner center direction) in the downward direction, reducing the fountain to the outside of the sealing body and directing it toward the inner side. This is preferable because it can be reduced. Alternatively, as another method of inclining, it is possible to reduce the flow of water to the outside by providing a water outlet on the inner side surface of the sealing body to induce a water flow to the inner central region. In particular, if there is a face plate covering the central region as described above in the central region, the water flow toward the inner center is passed from the surface of the object to be cleaned, such as a net, and the flow of polluted water upward is passed. It is preferable not to generate it.
In the present invention, it is preferable to provide a descending prevention (circular) plate so that the sealing body that rotates when the traveling tire is compressed and deformed does not directly contact the surface of the article to be cleaned.
The driving force for rotating the rotary shaft of the present invention may be a reaction force of the fountain of the fountain nozzle, or may be a hydraulic motor / submersible electric motor using high-pressure water.
It is preferable to provide one or a plurality of underwater cameras so that the situation of underwater washing can be understood and the traveling operation is facilitated.

  Embodiments of the present invention will be described below with reference to the drawings. This embodiment is an underwater washing apparatus A for laver net washing, in which a disk 4 in which an upper disk 4a and a lower disk 4b are superposed is attached to the lower end of a rotating shaft 3, and an upper disk 4a and a lower disk are attached. A water supply passage 10 passing through the center of the disk is formed between the water supply passage 4b and the water supply passage 10 in communication with the hollow interior of the rotary shaft 3, and an annular groove 13 is formed on the outer periphery of the lower surface of the lower disk 4b. The annular groove 13 extends in the circumferential direction and is provided with a downward communication hole. The communication hole serves as a fountain nozzle 11, the inner surface of the annular groove 13 is inclined, and the central region inside the annular groove is a lower disk. It is closed at 4b. Further, a propeller 6 for generating a pressing force is attached to the upper end of the rotating shaft 3, and high-pressure water from the water pump 7 can be supplied to the middle of the rotating shaft 3 through the swivel 9. The disc 4 and the fountain nozzle 11 are rotated together with the rotary shaft 3 by the reaction force of the fountain of high pressure water from the fountain nozzle, and the propeller 6 is also driven. The apparatus main body 1 is fitted with a tire 15 and is driven by a motor, and a descent prevention disk 12 as a descent prevention plate is attached to the tire drive shaft, and two cameras 14 are installed before and after the upper part of the apparatus main body 1. Driving and fountain are controlled by remote control from the sea side.

FIG. 1 is a perspective view of the embodiment.
FIG. 2 is a longitudinal sectional view of the embodiment.
3 is a cross-sectional view taken along the line XX of FIG.
FIG. 4 is a cross-sectional view of the annular groove forming the sealing body of the example.

  In the figure, A is an underwater washing apparatus of the embodiment, 1 is an apparatus main body, 2 is a case, 3 is a hollow inside and is closed on the upper side, and 4 is an upper disk attached to the lower end of the same rotating shaft. A disk having a two-layer structure composed of 4a and a lower disk 4b, 5 is a bearing of a rotating shaft, 6 is attached to the upper end of the rotating shaft, a propeller that pushes the apparatus body 1 toward the laver net, 7 is a water pump, 8 is A hose connected to the discharge port of the water pump, 9 is provided in the middle of the rotary shaft 3, a swivel for feeding water into the rotary shaft, and a groove passing through the center of the disc provided on the lower surface of the upper disk 4a. A water supply path 11 is formed by a communication hole between the water supply path and the annular groove 13 of the lower disk 4b, and is pierced in the circumferential direction downward to form a fountain nozzle. Reference numeral 12 denotes a descending prevention disk that serves as a descending prevention plate attached to the axle of the tire 15, and 13 denotes an annular groove provided in the lower disk 4b to form a sealing body. 13a is an inclined surface on the inner side surface of the annular groove, 14 is a washing monitoring underwater camera mounted above the apparatus body 1, 15 is a running tire driven by an underwater motor, and 16 is the water discharged from the propeller 6 upward. Duct, B is a laver net.

In this embodiment, the seawater pressurized by the water pump 7 is sent to the pair of fountain nozzles 2 in the communication hole at the end of the water supply path via the hose 8, the swivel 9, the rotary shaft 3, and the water supply path 10. It is done. The fountain nozzle 11 is disposed in the annular groove 13 on the lower surface of the lower circular plate 4b so as not to protrude downward from the annular groove 13 and to be inclined in the circumferential direction.
When high-pressure water is sent to the fountain nozzle 11, the high-pressure water is ejected from the fountain nozzle 11, and the fountain and the water flow associated therewith are constrained by the groove wall surface of the annular groove 13. The water flow mainly flows toward the opening surface of the annular groove 13. As a result, the energy of the fountain can be concentrated on the annular groove width portion of the laver net B, which is the surface of the object to be cleaned, and thus the cleaning power and peeling force are high. Further, since the water flow is restrained by the groove wall surface of the annular groove 13 and is less likely to be discharged from the outer periphery of the disk, it is less likely to be polluted by laver pieces, dust, shells, etc. that have been peeled off from the outer periphery. In the case of a laver net, the mesh is penetrated by the water pressure of the fountain flow to push out these laver pieces.

Therefore, the image of the surface of the laver net of the underwater camera 14 can be made clear.
In the present embodiment, since the inner side surface 13a of the annular groove 13 is inclined, the water flow tends to move slightly to the central portion of the disk 4, and the diffusion to the outer periphery of the disk 4 can be reduced.
Then, while the laver net is washed in an annular shape by the fountain nozzle 11, if the apparatus main body 1 is driven by the tire 15, the washed annular portion moves and the entire laver net can be washed well without corners.
The rotating shaft 3 is rotated by the reaction force of the fountain of the fountain nozzle 11, and the fountain nozzle 11 changes its position in the circumferential direction to uniformly wash the circumferential annular region.
The propeller 6 is rotated by the rotation of the rotating shaft 3, and the apparatus main body 1 is pressed against the laver net by the thrust of the propeller 6, and the pressing ring 12 is brought into close contact with the laver net B so that the washing power is in a good state. . Even if the tire 15 is compressed and deformed by the pressing force, the lower disk 4 b is prevented from coming into direct contact with the laver net B by the descending prevention disk 12.

  In this way, in this embodiment, since the fountain energy of the fountain nozzle 2 is narrowed down to a narrow annular region, a high washing power and peeling force can be retained. In addition, in order to eliminate the release of peeled seaweed pieces and dust to the outer periphery of the disk and pass through the laver net, there is little seawater contamination on the outer periphery of the disk, while the underwater camera 14 clearly displays the underwater state, Accurate operation and grasping of the washing state were made possible.

  The present invention can be used to remove adhesion of ginger net, stationary net, hull, surface of underwater structure, adhesion of seaweed, shellfish, and dust in addition to washing underwater laver net in the embodiment.

It is a perspective view of an Example. It is a longitudinal cross-sectional view of an Example. It is XX sectional drawing of FIG. 2 of an Example. It is sectional drawing of the annular groove which forms the sealing body of an Example.

Explanation of symbols

A water washing device B laver net 1 device main body 2 case 3 rotating shaft 4 disk 4a upper disk 4b lower disk 5 bearing 6 propeller 7 water pump 8 hose 9 swivel 10 water supply path 11 fountain nozzle (communication hole)
12 descending prevention disk 13 annular groove 13a inclined surface 14 underwater camera 15 tire 16 duct

Claims (6)

A rotating shaft that is substantially perpendicular to the surface is provided at a bottom position facing the surface of the apparatus main body that can travel along the surface of the underwater object to be washed, and a fountain nozzle at a position that is a predetermined distance in the radial direction from the rotating shaft. The fountain nozzle is connected to a rotation shaft, and means for pumping water to the fountain nozzle is provided. Water is jetted from the fountain nozzle while rotating the fountain nozzle, and the surface is washed with the jet water. In the underwater washing device,
The fountain flow from the fountain nozzle is constrained to an annular range of a predetermined width in the radial direction from the fountain nozzle, the discharge of the water flow from the upper side and the side is suppressed, and a water flow sealing body having an open lower surface is attached. An underwater cleaning apparatus, wherein the surface of an object to be cleaned is washed in an annular shape with a fountain flow so that the surface of the object to be cleaned can be changed widely by moving while being washed.   A disk that covers an area larger than the radius of the rotation trajectory around the rotation axis of the fountain nozzle is fixed to the rotation axis so that it can rotate, and a plurality of water supply channels to the fountain nozzle are provided in the disk, and a predetermined lower part of the periphery of the disk An annular groove having a width and an opening at the bottom is provided, a communication hole extending in the circumferential direction is formed between the end of the water supply channel and the annular groove, and the communication hole serves as a fountain nozzle. The underwater washing apparatus according to claim 1, wherein a sealing body is configured, and the fountain nozzle is disposed so that a nozzle port of the fountain nozzle does not protrude downward from an opening edge of the annular groove and the fountain nozzle faces in a circumferential direction.   The underwater washing according to claim 1 or 2, wherein the inner side surface of the sealing body is inclined so as to extend in the direction of the rotation axis in the downward direction, and the fountain flows in the direction perpendicular to the surface and inward to reduce the outward water flow. apparatus.   The underwater washing apparatus according to any one of claims 1 to 3, wherein the driving force for rotating the fountain nozzle / sealing body and the rotating shaft is a reaction force of the fountain nozzle.   A propeller is attached to the upper end of the rotating shaft, the propeller is rotated by the rotation of the rotating shaft, the device body is pressed against the surface of the underwater object to be washed, and the water flow seal is directly attached to the underwater object to be washed. The underwater washing apparatus in any one of Claims 1-4 which provided the descending prevention board which has a lower end in the downward direction from the lower end of a water flow sealing body so that it may not contact with the surface.   The underwater washing apparatus in any one of Claims 1-4 which attached the underwater camera which can image | photograph the surface state of the outer periphery of a sealing body to the apparatus main body.

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