JP2018176015A - Washing device - Google Patents

Abstract

SOLUTION: A washing device 1 comprises a revolving rotation shaft 8 attached with a nozzle 3, a motor 14 for revolving and rotating the revolving rotation shaft 8 via an inner pipe 7 and bevel gears 11, 12, and a control unit 18 for controlling the operation of the motor 14. A washing liquid passage 27 for supplying a washing liquid W (water) to the nozzle 3 over the inner pipe 7 and the revolving rotation shaft 8 is formed. A second washing liquid passage 41 for supplying a washing liquid W2 and a plurality of jet ports 42 are formed at an outer pipe 15. Preliminary washing can be performed by supplying the washing liquid W2 to the second washing liquid passage 41 and jetting from the jet port 42 to the inner surface 2A of the tank 2 when starting washing.EFFECT: A washing unit 4 is inserted inside and a washing liquid W2 can be jetted from a jet port 42 even when an upper end opening part 2B is a small tank 2 since the washing unit 4 can be miniaturized. The burden of a worker can be reduced since a manual work that the worker blows a foamy detergent and the like into the tank 2 is not necessary.SELECTED DRAWING: Figure 1

Description

The present invention relates to a cleaning apparatus, and more particularly to a cleaning apparatus in which, for example, a nozzle is introduced into the inside of a tank and a cleaning liquid is sprayed from the nozzle to clean the inner surface of the tank.

Conventionally, there is known a cleaning apparatus in which a nozzle is introduced into the inside of a tank or the like to clean the inner surface of the tank (for example, Patent Document 1).
Such a conventional cleaning apparatus includes a nozzle inserted into the tank to spray the cleaning solution, and a lid member closing the opening of the tank, and the nozzle is inserted into the tank and the lid opening the tank Is closed, and in that state the cleaning fluid is injected from the nozzle to clean the inner surface of the tank.

Patent No. 4636956 gazette

By the way, when the tank is cleaned by the conventional cleaning apparatus, depending on the contents stored in the tank, sufficient spraying may not be possible only by spraying high pressure water from the nozzle to the inner surface, in which case the tank It was necessary to spray after washing detergent on the inner surface. In addition, after high pressure water is jetted from the nozzle to the inner surface of the tank, low pressure water may be jetted to require rinsing.
Therefore, conventionally, a detergent nozzle and a rinse nozzle are attached to the lid member separately from the washing nozzle, and the detergent nozzle is first jetted from the detergent nozzle toward the inner surface of the tank and then high pressure water is jetted from the washing nozzle. After washing the inner surface of the tank or washing with the washing nozzle, low pressure water was sprayed from the rinsing nozzle to rinse.
However, depending on the type and shape of the tank, the diameter of the opening may be small, in which case the detergent nozzle and the rinse nozzle may not be attached to the lid member. In this case, it is necessary for the operator to manually spray the detergent on the inner surface of the tank using a hand-held injector or the like before cleaning by the cleaning nozzle, which causes a problem that the burden on the operator is large. The

In view of the above-described circumstances, the present invention provides an axis rotatably supported in a direction substantially perpendicular to the axis of rotation, a first liquid passage formed on the axis of rotation, and a first liquid passage formed on the axis of rotation. And a second liquid passage provided on the pivoting rotation shaft and in communication with the first liquid passage, and provided on the pivoting rotation shaft. (1) a nozzle which jets a cleaning liquid supplied to the object to be cleaned through a liquid passage and a second liquid passage, an outer pipe which is disposed so as to surround the rotating shaft and rotatably supports the rotating shaft. A first bevel gear provided on the outer pipe, a second bevel gear provided on the turning rotation shaft and meshing with the first bevel gear, and a drive source for rotating the rotation shaft;
A cleaning apparatus in which the nozzle is inserted into an object to be cleaned, and a cleaning liquid is sprayed from the nozzle to clean the inner surface of the object to be cleaned,
A third liquid passage of a system different from the first liquid passage and the second liquid passage is provided in the outer pipe, and at least one injection port for injecting the liquid supplied to the third liquid passage to the object to be cleaned is It is characterized in that it is provided in a tube.

  According to such a configuration, the washing apparatus can be miniaturized. Further, it is possible to spray the detergent from the third liquid passage for preliminary cleaning, or to spray purified water for rinsing. Therefore, there is no need for the worker to spray the cleaning material or the like manually on the object to be cleaned, and the burden on the worker on site can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS Sectional drawing which shows one Example of this invention. The figure which shows the operating state of the nozzle of FIG.

  Hereinafter, the present invention will be described with reference to the illustrated embodiment. In FIGS. 1 and 2, reference numeral 1 denotes a cleaning apparatus for cleaning an inner surface 2A of a tank 2 as an object to be cleaned. The cleaning device 1 supports a cleaning unit 4 that jets a cleaning liquid W (water) from the nozzle 3 toward the inner surface 2A of the tank 2, and supports the cleaning unit 4 and a lid 5 is connected to the upper part of the outer peripheral portion A tubular support member 6, a motor 14 for rotating the inner pipe 7, and revolving and rotating the nozzle 3 via the pivot shaft 8 and the bevel gears 11 and 12, and a lid 5 via the support member 6. And a lifting and lowering mechanism 17 for supporting the cleaning unit 4 and lifting and lowering them when required, and a control device 18 for controlling the operation of the motor 14 and the lifting and lowering mechanism 17.

The cleaning unit 4 includes an outer tube 15 whose outer peripheral portion is supported by a support member 6, and an inner tube 7 as a rotational shaft rotatably supported on the inner side of the outer tube 15 via a bearing 21. It is fitted to the lower end of the outer tube 15 and the swiveling rotary shaft 8 disposed horizontally at the position of the lower end of the pipe 7 and capable of axial rotation, the nozzle 3 connected to the tip of the swiveling rotary shaft 8 and A bevel gear 11 and a bevel gear 12 fitted to the outer peripheral portion of the turning rotary shaft 8 and meshing with the bevel gear 11 are provided.
The inner pipe 7 is supported in the vertical direction, and can rotate in that state. The pivoting rotation shaft 8 can be pivoted to the position of the lower end portion of the inner pipe 7 in a state of being orthogonal to that. A box-shaped gear case 23 is disposed below the outer tube 15, and the bevel gears 11 and 12, the turning rotation shaft 8, and the like are covered with the gear case 23.

A cylindrical support member 24 is disposed at the center of the gear case 23, and the pair of bearings 25A, 25B allows the pivoting rotary shaft 8 to be axially rotated between the lower end portion of the inner pipe 7 and the upper end of the support member 24. It is pivotally supported. That is, the turning rotation shaft 8 is supported at a position of the lower end portion of the inner pipe 7 in the horizontal direction orthogonal to the inner pipe 7 so as to be capable of axial rotation. The tip end of the pivoting rotation shaft 8 is kept liquid tight by a seal member 26 and is projected outside the gear case 23, and the base of the nozzle 3 is connected thereto in the orthogonal direction. As described above, since the nozzle 3 is connected in a direction orthogonal to the axis of the turning rotation shaft 8, when the turning rotation shaft 8 is rotated, the nozzle 3 is rotated (turned) substantially in the vertical plane. It has become so. In the present embodiment, a flat nozzle that sprays the cleaning liquid W in a wide width is adopted as the nozzle 3.
A bevel gear 12 is fitted to an outer peripheral portion of the turning rotary shaft 8, and the bevel gear 12 is engaged with a bevel gear 11 as a sun gear fitted to a lower end outer peripheral portion of the outer tube 15. Therefore, when the inner pipe 7 is rotated, the turning rotation shaft 8 revolves in a predetermined direction with the inner pipe 7 as a rotation center. At that time, the turning rotation shaft 8 and the nozzle 3 are rotated (turned) in a predetermined direction by the meshing of the both bevel gears 11 and 12. Thus, the nozzle 3 moves in a three-dimensional movement trajectory (see FIG. 2).

The inner space of the inner tube 7 which is tubular is a liquid passage 7A through which water as the washing liquid W flows, and the lower end of the liquid passage 7A is always in communication with the liquid passage 8A formed in the pivot shaft 8 doing. The liquid passage 7A and the liquid passage 8A constitute a cleaning solution passage 27 for feeding the cleaning solution W to the nozzle 3.
The upper end of the inner pipe 7 (the upper end of the liquid passage 11A) is connected to the supply source 33 of the cleaning liquid W via the connector 31 and the conduit 32. The supply source 33 is controlled by the control unit 18, and the control unit 18 supplies the cleaning liquid W (water) from the supply source 33 to the cleaning liquid passage 27 through the conduit 32 when required. ing. At that time, the cleaning liquid W supplied to the cleaning liquid passage 27 is jetted from the tip of the nozzle 3.

  A gear 34 is attached to the outer peripheral portion of the inner pipe 7 exposed to the upper side of the outer pipe 15, and the gear 34 meshes with a gear 35 fitted to the drive shaft of the motor 14. The operation of the motor 14 is controlled by the controller 18, and when the controller 18 operates the motor 14, the inner pipe 7 is axially rotated in a predetermined direction via the gears 34, 35. At that time, as described above, the turning rotation shaft 8 is revolved, and the turning rotation shaft 8 and the nozzle 3 are rotated by the engagement of the double bevel gears 11 and 12. Thus, the nozzle 3 is moved in a three-dimensional movement trajectory.

Furthermore, in the present embodiment, the outer pipe 15 of the cleaning unit 4 is provided with a second cleaning fluid passage 41 of a system different from the cleaning fluid passage 27. More specifically, a plurality of axial passages 15A are formed in the upper portion of the outer tube 15 at predetermined intervals in the circumferential direction, and a second cleaning fluid passage 41 is configured by these. The lower end portion of each axial passage 15A is opened to the outer peripheral surface of the outer pipe 15 on the adjacent lower side of the support member 6, and the injection port 42 is attached thereto in the horizontal direction.
The upper end portion of the axial passage 15A communicates with the annular groove 15B on the outer peripheral surface, and the annular groove 15B is covered by the annular seal member 43. Then, one end of the conduit 44 is in communication with the second cleaning fluid passage 41 via the annular seal member 43 and the annular groove 15B. The other end of the conduit 44 is connected to a supply source 45 for supplying a cleaning liquid W2 which is different from the cleaning liquid W, for example, a foam-like detergent, and the supply source 45 is controlled by the controller 18 ing.
When the control device 18 activates the supply source 45, the cleaning liquid W2 (foam-like detergent) is supplied to the second cleaning liquid passage 41 through the conduit 44, so the cleaning liquid is supplied from the plurality of injection ports 42 provided in the outer pipe 15. W2 is injected outward. In this embodiment, the inner surface 2A of the tank 2 can be precleaned with the cleaning liquid W2 which is a foam-like detergent by injecting the cleaning liquid W2 from the injection port 42 at the initial stage of the cleaning operation. In addition, as the washing | cleaning liquid W2, not only a detergent but sterilization water, a purified water, etc. can be used, for example. In addition to the preliminary cleaning in the initial stage of the cleaning operation, for example, in the latter stage of the cleaning operation, purified water may be jetted from the injection port 42 and used for rinsing.
The lid 5 attached to the support member 6 is formed in a disk shape, and an annular stopper 5A for preventing liquid leakage and scattering is provided at the outer peripheral portion and the near inner position thereof.

In the above configuration, when the cleaning unit 4 and the lid 5 are stopped at the rising end position and the tank 2 is carried to the cleaning position A, the lifting mechanism 17 lowers the lid 5 together with the cleaning unit 4 . Thereby, the nozzle 3 and the like of the cleaning unit 4 are inserted into the inside of the tank 2 and the lid 5 closes the upper end opening 2B of the tank 2 (FIG. 2).
Thereafter, the operation of the motor 14 and the supply source 33 and the like is controlled by the controller 18 as follows, whereby the inner surface 2A of the tank 2 is cleaned.
In this embodiment, before the cleaning liquid W (water) is sprayed from the nozzle 3 to clean the inner surface 2A, the cleaning liquid W2 which is a foam-like detergent is sprayed to the inner surface 2A of the tank 2 to perform preliminary cleaning. That is, first, since the supply source 45 of the cleaning liquid W2 is operated in a state in which the motor 14 is stopped, that is, in a state in which the nozzle 3 is stopped, the cleaning liquid W2 (foamy detergent) flows through the conduit 44 It is supplied to the cleaning solution passage 41. Therefore, the cleaning liquid W2 is simultaneously jetted from the plurality of injection ports 42 to the inner surface 2A of the tank 2.
Thus, the inner surface of the tank 2 is precleaned by spraying the cleaning liquid W2 (foam-like detergent) from the injection port 42 of the outer pipe 15 to the inner surface 2A for a predetermined time. As described above, the cleaning liquid W 2 made of foamy detergent is sprayed onto the inner surface 2 A of the tank 2 before the cleaning with the nozzle 3, so that the contents of fats and oils that are difficult to clean Things are being washed away.

As described above, when the preliminary cleaning is performed for a predetermined time, the main cleaning using the nozzle 3 is performed next. That is, since the operation of the supply source 45 is stopped first, the injection of the cleaning liquid W2 from the injection port 42 is stopped.
Then, since the drive motor 14 is operated and the supply source 33 of the cleaning liquid W (water) is operated, the cleaning liquid W (water) is supplied to the cleaning liquid passage 27 via the conduit 32 and the cleaning liquid W is jetted from the nozzle 3 Be done. In addition, since the inner pipe 7 is axially rotated, the turning rotation shaft 8 is revolved and rotated via the bevel gears 11 and 12 (see FIG. 2). Therefore, since the nozzle 3 is moved in a three-dimensional movement trajectory, the cleaning liquid W is sprayed over the entire area of the inner surface 2A of the tank 2. Thereby, the inner surface 2A of the tank 2 is cleaned by the cleaning solution W (water). The cleaning liquid W after cleaning, which is jetted from the nozzle 3 to the tank 2, is discharged to the outside from a drain port (not shown) formed in the lower part of the tank 2.
Thus, when the cleaning operation of the inner surface 2 of the tank 2 is completed, the operation of the motor 14 and the supply source 33 is stopped.
As described above, when the cleaning operation of the inner surface 2A of the tank 2 is completed, the elevating mechanism 17 lifts the cleaning unit 4 and the lid 5 to the original raised position. As a result, the lid 5 is separated from the upper end opening 2 B of the tank 2 and the cleaning unit 4 is raised to the original position above the opening 2 B of the tank 2. Thereafter, the tank 2 after cleaning is carried out of the cleaning position A by the carrying out mechanism (not shown).

As described above, the present embodiment is characterized in that the second cleaning liquid passage 41 is provided in the outer pipe 15 of the cleaning unit 4 separately from the cleaning liquid passage 27 for the nozzle 3. Therefore, compared with the conventional product which provided the detergent nozzle in the lid 5, the washing apparatus 1 can be miniaturized.
Therefore, even if the upper end opening 2B is a small tank 2, the cleaning unit 4 can be inserted inside to jet the cleaning liquid W2 different from the cleaning liquid W. Therefore, it is not necessary for the worker to spray foamy detergent manually on the inner surface 2A of the tank 2, and the burden on the worker on site can be reduced.

In the above embodiment, the nozzle 3 is inserted into the tank 2 from above, and the nozzle 3 is revolved and rotated in that state, but depending on the shape of the object to be cleaned, The nozzle 3 may be inserted into the object to be cleaned from the side or the lower side to be cleaned.
Further, the plurality of injection ports 42 provided in the outer tube 15 may be disposed at different heights, the direction of the injection port 42 may be angled, or the wide-angle injection port 42 may be adopted.
Further, the cleaning liquid W2 is injected from the injection port 42 to maintain the state that the cleaning liquid W2 passes down the inner surface of the tank 2, and the motor 14 and the supply source 33 are operated in that state to eject the cleaning liquid W (water) from the nozzle 3 You may do it.
It is also possible to rinse the inner surface 2A after washing by injecting clean water from the injection port 42 through the second washing liquid passage 41.
Furthermore, in the above embodiment, the outer pipe 15 is fixed to the inner side of the support member 6 and the cleaning liquid W2 is injected from the plurality of injection ports 42. However, the outer pipe 15 is rotatable by the support member 6. The injection port 42 may be provided at the outer pipe 15 at only one point. In this configuration, it is possible to spray the cleaning liquid W2 from the injection port 42 by rotating the outer pipe 15 with a motor or the like, and to preclean the inner surface 2A of the tank 2.

1 .. Cleaning device 2 .. Tank (object to be cleaned)
2A .. Inner surface 3 .. Nozzle 7 .. Inner tube (rotation shaft) 8 .. Rotating shaft 11. 11. Bevel gear 14. Bevel gear 14. Motor (drive source) 15. Outer tube 18. Control device 27. Cleaning fluid passage 41 .. Second Cleaning fluid passage (third fluid passage)
W .. Cleaning fluid W2 .. Cleaning fluid

Claims (2)

A rotation shaft axially supported rotatably, a first liquid passage formed in the rotation shaft, and the rotation shaft substantially rotatably supported in a direction substantially orthogonal to the rotation shaft, and the rotation shaft being a rotation center And a second liquid passage provided on the pivoting rotary shaft and in communication with the first liquid passage, and provided on the pivoting rotary shaft via the first liquid passage and the second liquid passage. And a nozzle for injecting a cleaning liquid supplied to the object to be cleaned, an outer pipe disposed so as to surround the rotary shaft and rotatably supporting the rotary shaft, and a first umbrella provided on the outer pipe A gear, a second bevel gear provided on the swing rotation shaft and meshing with the first bevel gear, and a drive source for rotating the rotation shaft,
A cleaning apparatus in which the nozzle is inserted into an object to be cleaned, and a cleaning liquid is sprayed from the nozzle to clean the inner surface of the object to be cleaned,
A third liquid passage of a system different from the first liquid passage and the second liquid passage is provided in the outer pipe, and at least one injection port for injecting the liquid supplied to the third liquid passage to the object to be cleaned is A cleaning device provided in a pipe. The cleaning apparatus according to claim 1, wherein the injection ports are provided at a plurality of circumferential positions of the outer pipe.

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