JPH08243514A - High pressure water jetting washer - Google Patents

Abstract

PURPOSE: To provide a high pressure water jetting washer in which the jetting area and the washing capacity of high pressure water is easily controlled. CONSTITUTION: In a high water jetting washer W1 , a casing 1 has a holder 9 provided with high water jetting nozzles (n) at the tip thereof, and a high water tube 13 is connected to the holder 9. A supporting shaft 6 freely rotatably supported is installed inside the casing 1 and is provided with an automatic aligning ball bearing 8. The holder 9 is freely rotatably supported on the bearing 8 on the base part side thereof, and between the back end surface of the holder 9 and the supporting shaft 6, an inclined plate 10 rotated together with the supporting shaft 6 and coming into sliding contact with the back end surface of the holder 9 is installed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention of this application relates to a high-pressure water jet cleaning device for cleaning outer walls of structures such as buildings and bridges, and for removing surface paints thereof. The present invention relates to a high-pressure water jet cleaning device that can perform cleaning and removal work well.

[0002]

2. Description of the Related Art Conventionally, a treatment method using a grinder has been widely adopted as a general method for removing the paint on the outer wall surface of buildings and bridges. This grinder method is a method in which an operator operates the grinder to grind until the surface to be removed has a desired surface treatment state.

However, the processing by this grinder system is
Since it often grinds to a place where it is unnecessary to grind, the number of subsequent coating processes also increases, which requires a lot of labor and time. Moreover, noise and a lot of dust are generated during the work, which may adversely affect the environment around the work place.

There is also a method of using a chemical as another paint removing method, but in this case, it is difficult to treat the chemical and the environment around the work place may be adversely affected.

On the other hand, in recent years, high-pressure water is sprayed for cleaning the outer wall of structures such as buildings and for removing surface paint.
A cleaning device using a so-called water jet is used. This method does not have an adverse effect on the environment around the work site because the cleaning and removal work is performed with high-pressure water.

As a conventional technique of this cleaning and removing method using high-pressure water, there is, for example, the invention described in JP-A-61-229000. In the invention described in this publication, the nozzle head is held in the holder so as to continuously revolve around the rotation center deviated from the axis of the nozzle head, so that the high pressure water is jetted while rotating. . Then, in order to resist the reaction force of the high pressure water, the cleaning device is operated while operating with both hands.
The peeling and removing work is performed.

[0007]

However, since the above-mentioned cleaning device is of a type in which high-pressure water is rotated parallel to the axis of the cleaning device, the purpose of treatment of the surface to be cleaned, such as cleaning of adhered substances and removal of paint, is to be improved. The distance between the spray nozzle and the surface to be cleaned must be changed significantly depending on the situation, etc., and quick processing according to the location to be cleaned is difficult, and inconvenience may occur in workability depending on the work location and work situation. is there.

Further, since this cleaning device is a large device for injecting high-pressure water, it always requires two-handed work, and it is necessary to clean the outer wall of the structure such as the above-mentioned building or bridge,
In difficult work such as so-called work in high places where surface paint of these structures is removed, inconvenience often occurs in workability such as movement of work place and carrying of cleaning device.

Therefore, in this cleaning device, in addition to the above-mentioned inconvenience of workability, a large amount of labor is required and a long work time is required.

In view of the above problems, the invention of this application is
An object of the present invention is to provide a high-pressure water jet cleaning device capable of easily adjusting the high-pressure water jet area and the washing capacity, and the high-pressure water jet washing device can be easily operated with one hand. It is another object to provide a cleaning device.

[0011]

In order to achieve the above object, a high-pressure water jet cleaning device according to a first aspect of the present invention has a holder having a high-pressure water jet nozzle at the tip of a casing, and the high-pressure water jet is provided in the holder. In a high-pressure water jet cleaning device in which tubes are connected, a support shaft rotatably supported is provided inside the casing, a bearing whose bearing surface is swingable is provided on the support shaft, and the base side of the holder is attached to the bearing. A swash plate that is rotatably supported and is provided between the rear end surface of the holder and the support shaft and that rotates together with the support shaft and comes into sliding contact with the rear end surface of the holder is provided.

A high-pressure water jet cleaning device according to a second aspect of the present invention is a high-pressure water jet cleaning device having a holder provided with a high-pressure water jet nozzle at a tip of a casing, and a high-pressure water tube connected to the holder. A support shaft that is rotatably supported is provided inside, an eccentric portion with an axial center offset is formed on the tip side of the support shaft, and a bearing surface is oscillatable between the eccentric portion and the support shaft. The base side of the holder is rotatably supported by the bearing.

According to a third aspect of the present invention, there is provided the high-pressure water jet cleaning device according to the first or second aspect, wherein the casing is provided with a grip portion, and the support shaft is rotated on the grip portion. It is characterized in that a driving means for driving is incorporated.

A high-pressure water jet cleaning device according to a fourth aspect is the high-pressure water jet cleaning device according to any one of the first to third aspects, wherein an on-off valve for shutting off high-pressure water supplied to the jet nozzle is provided in the casing. It is characterized by that.

According to a fifth aspect of the present invention, there is provided the high-pressure water jet cleaning apparatus according to any one of the first to fourth aspects, wherein the high-pressure water tube in the casing is made of a hard material.
The high-pressure water tube is formed in a spiral shape.

[0016]

According to the high-pressure water jet cleaning device of the first aspect,
A bearing of a rotatable support shaft provided inside the casing rotatably supports the base side of a holder provided with a high-pressure water jet nozzle, and a swash plate provided between the rear end surface of the holder and the support shaft. When is rotated together with the support shaft, the holder that slides along the inclination of the swash plate is prevented from rotating by the high-pressure water tube and revolves in a conical shape. At this time, the inclination of the holder is absorbed by the swing of the bearing surface. Therefore, the high-pressure water injection nozzle provided at the tip of the holder can inject high-pressure water in a conical shape to perform high-pressure water injection cleaning work.

According to the high-pressure water jet cleaning device of the second aspect, the support shaft is provided on the eccentric portion with the axial center offset and formed on the tip side of the rotatable support shaft provided inside the casing. When the base of the holder is rotatably supported by the bearing and the support shaft is rotated, the holder is prevented from rotating by the high-pressure water tube, and the holder revolves conically in accordance with the amount of eccentricity on the tip side of the support shaft. At this time, the inclination of the holder is absorbed by the swing of the bearing surface. Therefore, the high-pressure water injection nozzle provided at the tip of the holder can inject high-pressure water in a conical shape to perform high-pressure water injection cleaning work.

According to the high-pressure water jet cleaning device of the third aspect of the present invention, the operation of the high-pressure water jet cleaning device of the first aspect or the second aspect of the present invention is achieved, and the support shaft is provided in the grip portion formed in a part of the casing. Since the drive means for rotating is incorporated, the cleaning device can be made compact.

According to the high-pressure water jet cleaning apparatus of the fourth aspect, any one of the functions of the high-pressure water jet cleaning apparatus of the first to third aspects can be obtained and the high-pressure water supplied to the jet nozzle provided in the casing. The on-off valve that shuts off
The high-pressure water can be shut off on the cleaning device side.

According to the high-pressure water jet cleaning device of the fifth aspect of the present invention, any one of the functions of the high-pressure water jet cleaning device of the first to fourth aspects can be obtained, and the inside of the casing formed of a hard material having high pressure resistance can be provided. By forming the high-pressure water tube in a spiral shape, the high-pressure water tube can be made flexible, and the high-pressure water tube in the casing can be made compact to form a more compact high-pressure water jet cleaning device.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the invention according to this application will be described below with reference to the drawings. FIG. 1 is a side sectional view showing a high-pressure water jet cleaning device W _{1 according} to the first embodiment, and FIG. 2 is a front view of the cleaning device.

As shown in the figure, the upper portion of the casing 1 is formed in a circular tube shape, and the grip portion 1a is integrally formed at the lower portion of the substantially central portion in the front-rear direction. In the first embodiment, a drive motor 3 serving as a drive means is provided in the grip portion 2, and the reduction mechanism 2 provided above the drive motor 3.
A drive-side bevel gear 4 is provided on the upper side of the drive bevel gear 4.

A driven-side bevel gear 5 that meshes with the drive-side bevel gear 4 is provided at a substantially central portion in the axial direction of the casing 1. The driven-side bevel gear 5 has a hollow support shaft at its axial center. 6 is coupled, and the support shaft 6 is rotatably supported by a bearing 7 provided on the casing 1 side. In addition, 7a is a color.

In this embodiment, a self-aligning ball bearing 8 is provided at the tip of the support shaft 6 as a bearing whose surface is swingable. The inner ring of the bearing 8 is connected to the support shaft 6.
A holder 9 provided with a high-pressure water jet nozzle n is connected to the outer ring. In the first embodiment, the holder 9 is composed of a bearing holder 9a connected to the bearing 8 and a nozzle holder 9b for holding the high-pressure water jet nozzle n. Inside the nozzle holder 9b, a high-pressure water tube described later is provided. A supply passage 9c for supplying high-pressure water from the nozzle to the jet nozzle n is formed. In the first embodiment, an example in which three high pressure water jet nozzles n are vertically arranged will be described.
The high-pressure water jet nozzles n may be arranged so as to be circularly provided at equal angles, or may be arranged in another manner.

Further, a disk-shaped rotor 6a is integrally provided on the central tip side of the support shaft 6, and a disk-shaped rotor 6a is provided between the upper surface of the disk-shaped rotor 6a and the lower surface of the bearing holder 9a. A swash plate 10 is provided. The swash plate 10 is fixed to the rotor 6a with a mounting screw 11 and is configured to rotate integrally with the support shaft 6.

The lower surface of the bearing holder 9a is provided so as to come into contact with the upper surface of the swash plate 10. The holder provided with the high-pressure water jet nozzle n is brought into sliding contact, that is, sliding contact. 9 is moved conically. This conical movement of the high-pressure water jet nozzle n is a movement peculiar to the invention according to this application, and thus it is possible to exhibit a peculiar action and effect as described later.

On the other hand, a high-pressure water joint 12 is provided in the central portion of the nozzle holder 9b on the casing side. With this joint 12, the high-pressure water tube 13 and the nozzle holder 9 are provided.
b is connected. This connection is a high pressure water jet nozzle n
The movement (rocking) transmitted from the nozzle holder 9b to the high-pressure water tube 13 is reduced by performing the movement at a position that is substantially the starting point of the conical movement of.

The high-pressure water tube 13 is formed in a spiral shape in the casing 1. By forming the high-pressure water tube 13 made of a hard material having high pressure resistance in a spiral shape, for example, a stainless steel tube is formed. Can also be formed to have flexibility, and this is configured to absorb the displacement of the high pressure water tube 13 transmitted from the nozzle holder 9b. By forming the high-pressure water tube 13 made of a hard material in a spiral shape so as to have flexibility in this manner, the long high-pressure water tube 13 for absorbing the displacement transmitted from the nozzle holder 9b as in the related art is unnecessary. Therefore, the casing 1 itself can be made more compact. The proximal end side of the high pressure water tube 13 is connected to a high pressure water joint 14 provided at the other end of the casing 1, and is connected to a high pressure water supply source by an external high pressure water tube (not shown) connected to the casing 1. ing.
The high-pressure water tube 13 made of a hard material may be a material having high pressure resistance such as a metal such as stainless steel or a hard resin.

According to the high-pressure water jet cleaning device W ₁ of the first embodiment constructed as described above, the outer wall of the structure can be cleaned and the surface paints can be removed by the following operations. it can.

That is, when the drive bevel gear 4 is driven by the drive motor 3, the support shaft 6 rotates together with the driven bevel gear 5, and the swash plate 10 integrally formed with the support shaft 6 rotates in the same direction. The rotation of the swash plate 10 causes the bearing holder 9 in sliding contact with the upper surface of the swash plate 10.
The nozzle holder 9b, which is integrally connected to the bearing holder 9a, is transmitted to the lower surface of the swash plate 1a.
It slides in the state of being inclined at the same angle as the inclination angle of 0. At this time, the rotation of the nozzle holder 9b is suppressed by the high-pressure water tube 13, so that the entire holder 9 is swash plate 10.
The nozzle holder 9 revolves in a "pestle shape" having an apex at a predetermined point on the axis corresponding to the inclination angle of the nozzle holder 9
The high-pressure water jetted from the high-pressure water jet nozzle n provided in b is jetted in a conical shape. The inclination of the holder 9 is
It is absorbed by the outer ring of the self-aligning ball bearing 8 supporting the bearing holder 9b tilting, that is, the bearing surface of the outer ring swinging.

In the first embodiment, the inclination angle of the upper surface of the swash plate 10 is formed to be a predetermined angle so that the inclination angle of the high-pressure water jet nozzle n is about 2 °, which allows the diameter at a distance of about 100 mm. It is configured so that the paint removal work on the surface to be cleaned can be done while drawing a circle of about 10 mm.

According to this high-pressure water jet cleaning device W ₁ , since the high-pressure water jetted from the high-pressure water jet nozzle n is jetted in a conical shape, the distance between the high-pressure water jet nozzle n and the surface to be washed is Since it is possible to make a large difference in the cleaning power by making a slight change, it is possible to obtain the effect that the optimum distance can be easily determined according to the surface condition of the surface to be cleaned, the processing condition, and the like.

Moreover, in this embodiment, the hard high-pressure water tube 13 is formed in a spiral shape in the casing 1 so as to have flexibility and absorb the displacement of the high-pressure water tube 13 transmitted from the nozzle holder 9b. Therefore, by making the casing 1 itself compact, one-handed operation is possible, and even in a place where washing with two hands is difficult, it is possible to easily perform the washing work with one-handed operation.

Therefore, since the cleaning work or the removing work can be performed with good work efficiency, it is possible to reduce the labor and the work time.

Incidentally, regarding each numerical value in this high-pressure water jet cleaning device W ₁ , the opening diameter of the high-pressure water jet nozzle n is 0.15.
mm ~ 0.3 mm, high pressure water pressure is 800 kg / cm ² ~ 4000 kg / c
Preferably 1000kg / cm ² ~2000kg / cm ² m ^{2, and} the revolution speed of the high-pressure water jet nozzles n are good 1000Rpm～2000rpm. These numerical values may be appropriately set to preferable values according to the purpose of use, the condition of the surface to be cleaned, the quality of the high-pressure water, and the like.

Further, these numerical values and the structure for injecting the high pressure water from the high pressure water injection nozzle n in a conical shape are not limited to the first embodiment, and are the same in the entire invention according to this application. .

Next, the high-pressure water jet cleaning device W ₂ of the second embodiment will be described below with reference to the side sectional view of FIG.

As shown in the drawing, this second embodiment also causes the high-pressure water jet nozzle n to move in a conical shape, and a drive motor 16 is provided at the center rear portion of the casing 15, and the drive motor 16 is a planetary reduction mechanism. It is connected to a gear holder 18 via 17.

A support shaft 19 composed of a shaft-shaped spindle member 19a and a cylindrical rotor member 19b is provided at the center of the gear holder 18, and the rotor member 19b of the support shaft 19 is a casing. It is rotatably supported by a bearing 20 provided at 15.

The inner surface of the rotor member 19b is formed such that its base end side is the same as the shaft center of the support shaft 19 and its tip end side is offset from the base end side. Also in the embodiment, the self-aligning ball bearing 21 is provided as a bearing whose bearing surface can swing. The color is 21a.

The outer ring of the bearing 21 is connected to the rotor member 19b, and the inner ring is connected to the shaft member 22a of the holder 22 for holding the high-pressure water jet nozzle n. The holder 22 includes a shaft member 22a and a nozzle holder 22.
b, and a connecting portion 22c for connecting a high-pressure water tube 23, which will be described later, is provided above the nozzle holder 22b. The second embodiment also shows an example in which three high-pressure water jet nozzles n are vertically arranged side by side.

Therefore, the holder 22 includes the rotor member 19
b It is supported in an inclined state according to the amount of eccentricity between the tip end side and the base end side of the inner surface. In the second embodiment, the rotor member 19 is supported.
The holder 22 provided with the high-pressure water jet nozzle n is configured to move in a conical shape by the rotation of b. In addition,
The peculiar function and effect produced by moving the high-pressure water jet nozzle n in a conical shape are the same as in the above-described first embodiment.

On the other hand, a high-pressure water joint 24 is provided at the connecting portion 22c of the holder 22, and the joint 24 connects the high-pressure water tube 23 and the holder 22. The high-pressure water tube 23 is also formed in a spiral shape like the high-pressure water tube 13 of the first embodiment, and the casing 1
It is formed into an elliptical spiral shape that is long in the front-rear direction in 5 and is then connected to the high-pressure water joint 25. A high pressure water tube 25a connected to an external high pressure water supply source is connected to the high pressure water joint 25.

Therefore, since the high-pressure water tube 23 also has flexibility in the spiral portion, the nozzle holder 2
It is possible to absorb the displacement transmitted from the connection portion 22c of 2b to the high-pressure water tube 23, and it is possible to reduce the size of the casing 15 by eliminating the need for a long high-pressure water tube.

According to the high-pressure water jet cleaning device W ₂ of the second embodiment constructed as described above, the outer wall of the structure can be cleaned and the surface coating material can be removed by the following operations. it can.

That is, when the drive motor 16 rotates the carrier 18 via the planetary speed reduction mechanism 17, the support shaft 19 rotates in the same direction together with the gear holder 18. The rotation of the support shaft 19 is the same as the rotation of the gear holder 18, but the rotor member 19 of the support shaft 19 is rotated.
Since the inner surface of the shaft b is eccentric, the shaft member 2 of the holder 22 supported by the rotor member 19b via the bearing 21.
2a rotates in an inclined state. At this time, the holder 22
Since the connecting portion 22c is connected to the high-pressure water tube 23, the rotation is suppressed, and the "pestle-like" shape corresponds to the eccentric amount of the rotor member 19b, that is, the inclination angle of the holder 22.
Therefore, the high pressure water jetted from the high pressure water jet nozzle n provided in the nozzle holder 22b is jetted in a conical shape. At this time, the inclination of the holder 22 is absorbed by the inclination of the inner ring of the bearing 21 supporting the shaft member 22a, that is, the swinging of the bearing surface of the inner ring.

The second embodiment also has the same inclination angle as that of the first embodiment described above.
It is configured so that paint can be removed from the surface to be cleaned while drawing a circle with a diameter of about 10 mm at a distance of 0 mm.

Therefore, similar to the above-described first embodiment, there is an effect that the optimum distance can be easily determined according to the surface condition of the surface to be cleaned, the processing condition, etc., and the working efficiency is good. Since the cleaning work or the removing work can be performed, it is possible to reduce the labor and the work time.

Also in this second embodiment, the hard high-pressure water tube 23 is spirally formed in the casing 15 to absorb the displacement transmitted from the nozzle holder 22b side, so that the casing 15 itself is made compact. As a result, one-handed operation is possible, and even in a place where washing with both hands is difficult, it is possible to easily perform the washing work with one-handed operation.

Next, the high-pressure water jet cleaning device W of the third embodiment.
₃ will be described below based on the side sectional view of FIG. In addition,
The third embodiment uses the same drive motor 3 and bevel gears 4 and 5 mechanism as the cleaning device W ₁ in the first embodiment described above, and has the same eccentric configuration as the cleaning device W ₂ in the second embodiment. The high pressure water injection nozzle n is rotated in a conical shape by the above, and in the third embodiment, an on-off valve 32 for shutting off the high pressure water supplied to the high pressure water injection nozzle n is further provided in the casing 26. The same components as those of the first and second embodiments described above are designated by the same reference numerals and the description thereof will be omitted.

As shown in the figure, in this third embodiment, a support shaft 27 having a high-pressure water passage formed in the shaft center is provided on a rotor member 28 whose shaft center is eccentric between the front end side and the base end side. It is supported by the core ball bearing 29, and the holder 30 of the high-pressure water jet nozzle n is in an inclined state according to this amount of eccentricity. Therefore, also in the third embodiment, the holder 30 provided with the high-pressure water jet nozzle n moves in a conical shape as the support shaft 27 rotates. Further, a high-pressure water tube 31 is connected to the rear end of the support shaft 27 which is the starting point of the conical movement of the holder 30.
Also in the embodiment, the high pressure water tube 3 is provided in the casing 26.
1 is formed in a spiral shape, and the spiral portion is configured to absorb the displacement transmitted from the support shaft 27. The unique action and effect produced by moving the high-pressure water jet nozzle n in a conical shape are the same as those in the first and second embodiments described above.

In this third embodiment, the casing 2
An opening / closing valve 32 is provided below the grip portion 26a integrally extending from the valve 6 to shut off the passage of the high-pressure water tube 31.

This on-off valve 32 is provided with a spring 32a when the injection lever 33 provided on the grip portion 26a is closed when it is closed.
Force causes the spool 32b to be constantly pressed upward in the figure. In this state, the poppet 32d provided at the tip of the spool 32b is located below the high-pressure water passage 32c and blocks the passage. There is.

When the injection lever 33 is pressed from this state, the spool 32b moves downward in the figure against the force of the spring 32a. In this state, the poppet 32d provided at the tip of the spool 32b is at a high pressure. Since it comes off from the water passage 32c, the high-pressure water is supplied from the high-pressure water tube 31 to the high-pressure water jet nozzle n through the high-pressure water passage 32c.

In the third embodiment, the operator operates the injection lever 33 provided in the cleaning device W ₃ to operate the injection of high-pressure water according to the operation state and the work place to perform an efficient operation. It becomes possible to do.

The cleaning of the outer wall of the structure and the removal of the surface paint and the like can be performed in the same manner as in the first and second embodiments described above, and a description thereof will be omitted.

Therefore, as in the first and second embodiments described above, the function and effect that the optimum distance can be easily determined according to the surface condition of the surface to be cleaned and the processing condition, and the high pressure water tube 31. In addition to the effect that the casing 26 can be shortened and the casing 26 can be downsized, a high-pressure water injection operation can be newly performed at hand, so that cleaning work or removal work with high work efficiency can be performed, which reduces labor and work. The time can be shortened. In addition, since the casing 26 can be downsized, the work can be performed by one-handed operation, and the labor can be reduced and the work time can be shortened even in the place where the cleaning work is difficult.

In the third embodiment, the configuration of the first and second embodiments described above is combined and the on-off valve 32 is further provided. However, the configuration of the first or second embodiment described above is used. An on-off valve may be added, and these configurations may be appropriately selected and configured according to the purpose of use and the like.

In any of the above-described embodiments, a self-aligning ball bearing is used as a bearing whose surface can swing, but a bearing whose inner ring can swing with respect to the outer ring or the outer ring with respect to the inner ring. If

[0060]

Since the invention according to this application is configured as described above, it has the following effects.

According to the high-pressure water jet cleaning device of the first aspect, the base side of the holder provided with the high-pressure water jet nozzle is rotatably supported by the bearing of the rotatable support shaft provided inside the casing. When the swash plate provided between the rear end surface of the holder and the support shaft is rotated together with the support shaft, the holder sliding along the inclination of the swash plate is prevented from rotating by the high-pressure water tube and revolves into a conical shape. To do. At this time, the inclination of the holder is absorbed by the swing of the bearing surface. Therefore, the high-pressure water jet nozzle provided at the tip of the holder sprays high-pressure water in a conical shape to perform high-pressure water jet cleaning work, and since the high-pressure water has a conical shape, the distance between the nozzle and the deposit is changed. As a result, efficient work can be performed while easily adjusting the spray width and the cleaning capacity.

According to the high-pressure water jet cleaning device of the second aspect, the support shaft is provided on the support shaft and the eccentric portion of which the shaft center is deviated, which is formed on the tip side of the rotatable support shaft provided inside the casing. When the base of the holder is rotatably supported by the bearing and the support shaft is rotated, the holder is prevented from rotating by the high-pressure water tube, and the holder revolves conically in accordance with the amount of eccentricity on the tip side of the support shaft. At this time, the inclination of the holder is absorbed by the swing of the bearing surface. Therefore, the high-pressure water jet nozzle provided at the tip of the holder sprays high-pressure water in a conical shape to perform high-pressure water jet cleaning work, and since the high-pressure water has a conical shape, the distance between the nozzle and the deposit is changed. As a result, efficient work can be performed while easily adjusting the spray width and the cleaning capacity.

According to the high-pressure water jet cleaning device of the third aspect of the present invention, the effect of the high-pressure water jet cleaning device of the first or second aspect can be obtained, and the supporting shaft is provided in the grip portion formed in a part of the casing. Since the drive means for rotating is incorporated, the cleaning device can be made compact,
It is possible to work efficiently with one hand even in high places.

According to the high-pressure water jet cleaning device of the fourth aspect, any one of the effects of the high-pressure water jet cleaning device of the first to third aspects can be obtained and the high-pressure water supplied to the jet nozzle provided in the casing can be obtained. The on-off valve that shuts off
Since the high-pressure water can be shut off on the side of the cleaning device, it is possible to perform efficient work while operating the high-pressure water jet according to the work state, work location, and the like.

According to the high-pressure water jet cleaning device of the fifth aspect, any one of the effects of the high-pressure water jet cleaning device of the first to fourth aspects can be obtained, and the inside of the casing formed of a hard material having high pressure resistance can be provided. By forming the high-pressure water tube in a spiral shape to give flexibility, a smaller high-pressure water jet cleaning device can be formed, and a high-pressure water jet cleaning device that can be easily operated with one hand can be configured. Becomes

[Brief description of drawings]

FIG. 1 is a side sectional view showing a first embodiment of a high-pressure water jet cleaning device according to this application.

FIG. 2 is a front view of the high-pressure water jet cleaning device shown in FIG.

FIG. 3 is a side sectional view showing a second embodiment of the high-pressure water jet cleaning device according to the present application.

FIG. 4 is a side sectional view showing a third embodiment of the high-pressure water jet cleaning device according to the present application.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Casing 2 ... Gripping part 3 ... Drive motor 4 ... Drive side bevel gear 5 ... Driven side bevel gear 6 ... Support shaft 7 ... Bearing 8 ... Self-aligning bearing 9 ... Holder 9a ... Bearing holder 9b ... Nozzle holder 10 ... Swash plate 13 High pressure water hose 15 Casing 19 Support shaft 19a Bearing holder 19b Nozzle holder 22 Holder 22a Shaft member 22b Nozzle holder 23 High pressure water hose 26 Casing 27 Support shaft 28 Rotor member 29 Automatic adjustment heart bearing 30 ... holder 31 ... high-pressure water tube 32 ... off valve 32a ... spring 32 b ... spool 32c ... high-pressure water passage 32d ... poppet 33 ... injection lever n ... high-pressure water jet nozzle _{W 1, W 2, W 3} ... high-pressure water jet Cleaning equipment

Front page continuation (72) Inventor Fumio Shirosho 3-1, 1-1 Higashikawasaki-cho, Chuo-ku, Kobe-shi, Hyogo Kawasaki Heavy Industries Ltd. Kobe factory (72) Masashi Nakayama 3-chome, Higashi-kawasaki-cho, Chuo-ku, Kobe-shi, Hyogo No. 1-1 Kawasaki Heavy Industries, Ltd. Kobe factory (72) Inventor Hidetaka Tanaka 3-1-1 Higashikawasaki-cho, Chuo-ku, Kobe-shi, Hyogo Prefecture Kawasaki Heavy Industries Ltd. Kobe factory (72) Inventor Seiichiro Oi Chiyoda-ku, Tokyo Marunouchi 1-6-5 East Japan Railway Company (72) Inventor Yuji Hasegawa 1-6-5 Marunouchi, Chiyoda-ku, Tokyo Within East Japan Railway Company

Claims (5)

[Claims] 1. A high-pressure water jet cleaning apparatus having a holder provided with a high-pressure water jet nozzle at the tip of a casing, and a high-pressure water tube connected to the holder, wherein a support shaft rotatably supported inside the casing is provided. A bearing whose swinging surface is swingable is provided on the support shaft, the base side of the holder is rotatably supported by the bearing, and the bearing is rotated together with the support shaft between the rear end surface of the holder and the support shaft. And a swash plate slidably in contact with the rear end surface of the holder. 2. A high-pressure water jet cleaning apparatus having a holder provided with a high-pressure water jet nozzle at the tip of a casing, and a high-pressure water tube connected to the holder, wherein a support shaft rotatably supported inside the casing is provided. And an eccentric portion with an axial center offset is formed on the tip side of the support shaft,
A high-pressure water jet cleaning device, characterized in that a bearing whose swinging surface can swing is provided on the eccentric part and the support shaft, and the base side of the holder is rotatably supported on the bearing. 3. The high-pressure water jet cleaning device according to claim 1, wherein a holding portion is formed in a part of the casing, and a driving means for rotating the support shaft is incorporated in the holding portion. . 4. The high-pressure water jet cleaning device according to claim 1, further comprising an opening / closing valve for shutting off high-pressure water supplied to the jet nozzle in the casing. 5. The high-pressure water jet cleaning according to claim 1, wherein the high-pressure water tube in the casing is formed of a hard material, and the high-pressure water tube is formed in a spiral shape. apparatus.