JP2023068267A - Washing device - Google Patents

Abstract

To provide a washing device capable of suitably discharging cleaning liquid.SOLUTION: A washing device 1 is used to wash the exterior surface of a train. The washing device 1 comprises a pipe 2 for washing which discharges washing liquid, and an air pipe 4 which discharges air. A tip part 4a of the air pipe 4 comprises inner cylindrical parts 5 and 15 and outer cylindrical parts 6 and 16 disposed to go around the outsides of the inner cylindrical parts 5 and 15 and is configured so as for air to pass through each of the inner cylindrical parts 5 and 15 and the outer cylindrical parts 6 and 16. The inner cylindrical parts 5 and 15 and the outer cylindrical parts 6 and 16 are each extended in a center axis direction of the air pipe 4. The pipe 2 for washing is disposed inside in a radial direction of the inner cylindrical parts 5 and 15.SELECTED DRAWING: Figure 3

Description

The present invention relates to a washing device for trains.

Since dirt on railway vehicles includes metal-derived dirt (iron powder, etc.), it is difficult to sufficiently remove the dirt even if the surface of the vehicle body is washed using a general car wash machine. be. For this reason, railway vehicles are washed manually. More specifically, a washing liquid obtained by mixing raw water and a chemical solution is discharged onto the surface of the vehicle body, and the surface of the vehicle body is washed manually using a brush.

On the other hand, Patent Literature 1 discloses a cleaning device that includes a cleaning chemical tank, a water tank, a chemical pump, a high-pressure water pump, and an arm, and that has a nozzle for injecting the chemical and high-pressure water at the tip of the arm. Are listed.

Japanese Utility Model Laid-Open No. 5-67566

However, the cleaning apparatus described in Patent Document 1 may cause uneven discharge of the cleaning liquid due to the influence of the surrounding environment such as strong winds and rainfall. Therefore, there is room for improvement.

SUMMARY OF THE INVENTION An object of the present invention is to provide a cleaning apparatus capable of suitably discharging a cleaning liquid.

A cleaning apparatus according to the present invention is a cleaning apparatus used for cleaning the outer surface of a train, comprising a cleaning pipe for discharging a cleaning liquid and an air pipe for discharging air, and a tip portion of the air pipe has an inner tubular portion and an outer tubular portion disposed around the outer side of the inner tubular portion, and is configured such that the air passes through each of the inner tubular portion and the outer tubular portion. wherein the inner tubular portion and the outer tubular portion extend in the direction of the central axis of the air pipe, and the cleaning pipe is disposed radially inward of the inner tubular portion. characterized by

According to the present invention, when the cleaning liquid is discharged, the air passing through the inner cylindrical portion and the outer cylindrical portion that are formed in a circle can improve straightness and reduce discharge unevenness.

1 is a perspective view of a cleaning device according to this embodiment; FIG. It is a front view of a cleaning device. FIG. 3 is a cross-sectional view of the cleaning apparatus showing the III-III cross section of FIG. 2; It is sectional drawing of piping for washing. It is a sectional view of piping for rinsing. FIG. 4 is a perspective view showing a proximal nozzle; FIG. 4 is a rear view of the proximal nozzle; FIG. 8 is a cross-sectional view of the base end nozzle showing the VIII-VIII cross section of FIG. 7; It is a perspective view which shows a tip side nozzle. It is a front view of a tip side nozzle. FIG. 11 is a cross-sectional view of the tip side nozzle showing the XI-XI cross section of FIG. 10; FIG. 3 is a perspective view of a holder;

A cleaning device 1 according to an embodiment of the present invention will be described below.
The drawings used in the present embodiment illustrate the configuration and shape of the cleaning apparatus of the present invention, and the arrangement of each member constituting the cleaning apparatus, and do not limit the present invention.
Moreover, in all the drawings, the same constituent elements are denoted by the same reference numerals, and overlapping descriptions are omitted as appropriate.

<Overview>
First, the outline of the cleaning apparatus 1 according to this embodiment will be described mainly with reference to FIGS. 1 to 3. FIG.
1 is a perspective view of a cleaning device 1 according to this embodiment, FIG. 2 is a front view of the cleaning device 1, and FIG. 3 is a cross-sectional view of the cleaning device 1 taken along line III--III in FIG.

A cleaning device 1 according to this embodiment is a cleaning device 1 used for cleaning the outer surface of a train (not shown).
The cleaning apparatus 1 includes a cleaning pipe 2 having a discharge portion 2g for discharging cleaning liquid (not shown) and an air pipe 4 having a discharge portion 4g for discharging air.
As shown in FIG. 3, the tip portion 4a of the air pipe 4 includes inner tubular portions 5 and 15, and outer tubular portions 6 and 16 arranged around the outer sides of the inner tubular portions 5 and 15. . It is configured such that air passes through each of the inner tubular portions 5 and 15 and the outer tubular portions 6 and 16 .
The inner tubular portions 5 , 15 and the outer tubular portions 6 , 16 extend in the central axis direction of the air pipe 4 . The cleaning pipe 2 is arranged radially inside the inner cylindrical portions 5 and 15 .
More specifically, a discharge portion 2g for discharging the cleaning liquid of the cleaning pipe 2 is arranged radially inside the inner cylindrical portion 15 .

"Train exterior" includes the front, side or rear of the train, or any combination thereof.
In particular, the cleaning apparatus 1 according to the present embodiment can be used not only for the "outer surface of the train", but also for the "side surface" which can be cleaned by the existing cleaning apparatus by moving relative to the cleaning apparatus as the train runs. It can also be used on the front or back of the

Specifically, conventionally, with regard to washing the front or rear surface of a train, a board is placed over the washing table or platform (used for maintenance and cleaning of the train) arranged on both sides of the train, and the deck is washed. It was done by hand, such as scrubbing with a brush. On the other hand, according to the cleaning apparatus 1, it is possible to clean not only the manual operation of a person, but also the front or rear of the train, so that the work efficiency can be improved.
In addition, when the front or rear surface of the vehicle is washed by the washing device 1, it does not interfere with overhead wires (electric wires above the vehicle), so there is no risk of electric shock.

The "washing liquid" is obtained by mixing oxalic acid or phosphoric acid and cation-removed water, for example. Also, the "rinsing liquid" is, for example, water.
In addition, in addition to the full circle formed continuously over 360 degrees, the "circumference" includes a notch (insertion portion) formed in a part and intermittently formed over 360 degrees. shall include
"Extending in the central axis direction" is not limited to extending parallel to the central axis, but includes at least a central axis direction component and extends obliquely to the central axis. shall include those that

According to the above configuration, when the cleaning liquid is discharged from the cleaning pipe 2, the cleaning liquid can be conveyed by the air passing through the inner cylindrical portions 5 and 15 formed in a circle, and the air passing through the outer cylindrical portions 6 and 16 can be transported. Acting like an air curtain, it is possible to improve straightness and reduce ejection unevenness.

<Overall composition>
Next, the overall configuration of the cleaning device 1 will be described.
As shown in FIG. 3, the cleaning apparatus 1 includes an air pipe 4, a cleaning pipe 2 and a rinsing pipe 3 inserted into the air pipe 4, and a cover 10 attached to the outer periphery of the tip portion 4a of the air pipe 4. And prepare.

The cleaning device 1 does not have a brush, and removes stains by the reaction of the chemical liquid (cleaning liquid) in such a manner that the chemical liquid (cleaning liquid) is applied and rinsed with water after a period of time. However, it is not limited to such a configuration, and the cleaning device 1 may be provided with a brush.
Further, the cleaning device 1 may be configured to discharge the coating agent, or may be manually applied with the coating agent.

The cover 10 is arranged to protrude from the air pipe 4 to the tip side, and is arranged flush with the rinsing pipe 3 or arranged to protrude to the tip side.
In addition, the cover 10 protrudes toward the tip side of the air pipe 4 to form a "visor", thereby appropriately suppressing the spread of the discharged air.
Note that FIG. 3 shows an example in which the rinsing pipe 3 and the cover 10 are arranged at the same position (flush).
The cover 10 according to this embodiment is a porous sponge such as urethane for protecting the air pipe 4 .

<Cleaning piping>
Next, mainly referring to FIG. 4 in addition to FIGS. 1 to 3, the cleaning pipe 2 will be described. FIG. 4 is a cross-sectional view of the washing pipe 2. As shown in FIG.
The cleaning pipe 2 discharges cleaning foam, and includes an elbow 2b, a nipple 2c connected to the elbow 2b via a socket 2e, and a foaming nozzle 2d connected to the nipple 2c via a socket 2f. and is composed mainly of When the cleaning liquid reaches the foaming nozzle 2d, the interior of the foaming nozzle 2d is made to have a negative pressure to take in air and generate cleaning foam. In addition, in FIG. 4, the internal structure of the foaming nozzle 2d is omitted.

As shown in FIG. 3, the discharge part 2g at the tip of the foaming nozzle 2d of the cleaning pipe 2 is arranged closer to the proximal end than the tip face of the tip nozzle 30 (air pipe 4).
Since the cleaning pipe 2 is arranged radially inward of the inner cylindrical portions 5 and 15, the cleaning foam generated by the foaming nozzle 2d is distributed radially inward of the inner cylindrical portions 5 and 15. It will be discharged from the discharge part 2g along with the passing air.

<Piping for rinsing>
Next, mainly referring to FIG. 5 in addition to FIGS. 1 to 3, the rinsing pipe 3 will be described. FIG. 5 is a cross-sectional view of the rinsing pipe 3. As shown in FIG.
The washing apparatus 1 includes a washing pipe 2, an air pipe 4, and a rinsing pipe 3 having a discharge portion 3g for discharging a rinsing liquid (water).
The discharge portion 3g of the rinsing pipe 3 is arranged between the inner cylindrical portion 15 and the outer cylindrical portion 16 when the discharge portion 3g is viewed from the front.
According to such a configuration, the rinsing liquid (water) can be discharged smoothly without being mixed with the cleaning liquid in the cleaning device 1 .

The rinsing pipe 3 mainly includes a pipe 3a and a joint unit 3b provided at the proximal end of the pipe 3a and connected to a flexible tube (not shown).
The rinsing pipe 3 is not shared with the washing pipe 2 that discharges washing foam, but is provided separately from the washing pipe 2 . For this reason, the rinsing pipe 3 can discharge the rinsing liquid (water) at high pressure, and since the cleaning liquid does not exist in the rinsing pipe 3, the rinsing pipe 3 can be washed by the cleaning pipe 2. Only water can be immediately discharged and rinsed.

A bent portion 3c is formed on the tip side of the pipe 3a so as to incline obliquely upward from the horizontal portion and connect to the horizontal portion. Through the slit 15a of the inner tubular portion 15 from the inside of the inner tubular portion 15, the bent portion 3c of the pipe 3a positioned between the inner tubular portion 15 and the outer tubular portion 16 passes through the slit 15a (into the slit 15a). intersection).
The joint unit 3b is for connecting the rinsing pipe 3 to a flexible tube connected to a pump (not shown).

<Air piping>
Next, the air pipe 4 will be described mainly with reference to FIGS. 6 to 11 in addition to FIGS. 1 to 3. FIG.
6 is a perspective view showing the proximal nozzle 20, FIG. 7 is a rear view of the proximal nozzle 20, and FIG. 8 is a cross-sectional view of the proximal nozzle 20 taken along line VIII-VIII in FIG. . 9 is a perspective view showing the tip side nozzle 30, FIG. 10 is a front view of the tip side nozzle 30, and FIG. 11 is a sectional view of the tip side nozzle 30 showing the XI-XI cross section of FIG.

The air pipe 4 according to this embodiment is for sending out compressed air for conveying cleaning foam and water, is connected to a compressor (not shown), and is a resin pipe made of polyvinyl chloride.

The air pipe 4 is provided with a lower elbow 4b and an upper elbow 4c, and is configured to discharge cleaning liquid (cleaning foam) and water in the horizontal direction at a position higher than the lower elbow 4b. From the upper elbow 4c, the washing pipe 2 and the rinsing pipe 3 are watertightly introduced into the air pipe 4 by filling with putty or the like.
A proximal end nozzle 20 and a distal end nozzle 30 made of resin are provided at the distal end portion 4a of the air pipe 4 in this embodiment.
The proximal nozzle 20 and the distal nozzle 30 may be integrally formed by integral molding.

As shown in FIG. 6, the base end nozzle 20 includes a mounting tube portion 9 at the central portion in a cross section perpendicular to the axial direction, an inner tube portion 5 radially outside the mounting tube portion 9, and an inner tube portion 5, and an outer tubular portion 6 located radially outwardly of 5.
The mounting cylinder part 9 is for passing the cleaning pipe 2 inside, and as shown in FIG. A grooved ridge 9b is formed. A linear portion adjacent to the bent portion 3c of the rinsing pipe 3 on the base end side is attached to the grooved ridge 9b.

Further, as shown in FIG. 8, the mounting cylinder portion 9 has a rectilinear portion 9c on the base end side, and the outer surface of the rectilinear portion 9c becomes larger radially outward toward the distal end side (in other words, it becomes thicker and thicker). ) and a flare portion 9d.

As shown in FIGS. 9 to 11, the tip end nozzle 30 includes a mounting tube portion 19 located in the central portion in a cross section orthogonal to the axial direction, an inner tube portion 15 radially outside the mounting tube portion 19, and an inner tube portion 15 located radially outside the mounting tube portion 19. and an outer tubular portion 16 radially outside the tubular portion 15 .
The mounting cylinder portion 19 is through which the washing pipe 2 is passed, and extends axially from the base end face of the tip side nozzle 30 (the inner cylinder portion 15 and the outer cylinder portion 16). It does not extend to the tip of the nozzle 30 (inner tubular portion 15, outer tubular portion 16). The tip surface of the mounting cylinder part 19 is formed on the tip side from the center.

The mounting tubular portion 9 (and mounting tubular portion 19) and the inner tubular portion 5 (and inner tubular portion 15) are connected by a plurality of radially extending partition walls (inner partition walls 7 and 17).
Specifically, three inner partition walls 7 are provided in the proximal nozzle 20 shown in FIG. 6, and three inner partition walls 17 are provided in the distal nozzle 30 shown in FIG. is provided. By forming the inner partition walls 7 and 17 in this way, the cross section of the air flow path between the mounting tube portion 9 and the inner tube portion 5 is formed in a fan shape with a central angle of 120 degrees. .
Of the air flow passage cross section between the mounting tubular portion 9 and the inner tubular portion 5, the flow passage cross section facing the slits 5a and 15a and where the rinsing pipe 3 is arranged is also formed by the slits 5a and 15a. Except for the notch, it is assumed to be formed in a fan shape.

According to the above configuration, a space is provided between the mounting tubular portion 9 (and the mounting tubular portion 19) and the inner tubular portion 5 (and the inner tubular portion 15), and the positional relationship between the two can be maintained. can be stabilized and discharge of the cleaning liquid can be stabilized.

The inner tubular portion 5 (and inner tubular portion 15) and the outer tubular portion 6 (and outer tubular portion 16) are connected by a plurality of radially extending partition walls (outer partition walls 8 and 18).
Specifically, three outer partition walls 8 are provided in the proximal nozzle 20 shown in FIG. 6, and three outer partition walls 18 are provided in the distal nozzle 30 shown in FIG. is provided. By forming the outer partition walls 8 and 18 in this way, the cross section of the air flow path between the inner cylindrical portion 5 and the outer cylindrical portion 6 is formed in a fan shape with a central angle of 120 degrees.
Of the air flow passage cross section between the inner tubular portion 5 and the outer tubular portion 6, the flow passage cross section facing the slits 5a and 15a and in which the rinsing pipe 3 is arranged also depends on the slits 5a and 15a. Except for the notch, it is assumed to be formed in a fan shape.

According to the above configuration, a space is provided between the inner tubular portion 5 (and the inner tubular portion 15) and the outer tubular portion 6 (and the outer tubular portion 16), and the positional relationship between the two can be maintained. can be stabilized and the range of the cleaning solution can be narrowed down.
Furthermore, since the portion where the rinsing pipe 3 is arranged is formed in a fan shape with a central angle of 120 degrees, the flow rate of water is increased compared to a fan shape with a smaller central angle. be able to.

The inner tubular portion 5 (and the inner tubular portion 15) is formed in a tapered shape that narrows toward the distal end side.
Specifically, the inner tubular portion 15 of the distal nozzle 30 is positioned on the extension of the inner tubular portion 5 of the proximal nozzle 20, and the distal surface of the inner tubular portion 5 and the proximal surface of the inner tubular portion 15 are positioned. are formed to match.
According to the above configuration, the inner cylindrical portion 5 (and the inner cylindrical portion 15) formed in a tapered shape can increase the flow velocity of the liquid medicine on the outflow side of the inner cylindrical portion 5 (inner cylindrical portion 15) than on the inflow side. Alternatively, the decrease in flow velocity can be suppressed.

As shown in FIG. 3, the outer cylindrical portions 6 and 16 according to this embodiment are formed in a straight pipe shape.
However, it is not limited to such a configuration, and the outer tubular portion 6 (outer tubular portion 16) is formed with a gentler inclination than the inner tubular portion 5 (inner tubular portion 15) with respect to the central axis of the air pipe 4. Alternatively, it may be formed in a flared shape that widens toward the tip side.

According to the above configuration, the flow passage cross-sectional area of the air passing between the inner tubular portions 5, 15 and the outer tubular portions 6, 16 passes radially inside the tapered inner tubular portions 5, 15. Compared to the flow passage cross-sectional area of air, it increases toward the tip side. Therefore, the speed of the air from the outer cylindrical portions 6 and 16, which forms an air curtain for preventing scattering to the surroundings, can be decelerated so as to approach the speed of the air from the inner cylindrical portions 5 and 15, which sends out the cleaning liquid. It is possible to moderately disperse the foam discharged from the supply pipe 2 .

The inner cylindrical portions 5 and 15 are provided with insertion portions (slits 5a and 15a) through which the rinsing pipe 3 passes through in the thickness direction.
The rinsing pipe 3 passes through the slits 5a and 15a from the inside of the inner cylindrical portions 5 and 15 from the inside to the outside in the radial direction. It is arranged between the tubular portions 5, 15 and the outer tubular portions 6, 16. As shown in FIG.

In other words, the “portion of the rinsing pipe 3 closer to the tip side than the slits 5a and 15a” is a portion of the rinsing pipe 3 closer to the tip than the part intersecting with the slits 5a and 15a.

Note that the slits 5a and 15a notched to the distal end will be described as examples of the insertion portions formed in the inner cylindrical portions 5 and 15, but the configuration is not limited to this. For example, the insertion portion may be a through hole that forms a closed region, such as a round hole or an elongated hole that is elongated in the axial direction of the air pipe 4 .
If the insertion portion is a through hole forming a closed region, the tip portions of the inner cylindrical portions 5 and 15 can be made free from chipping over the entire circumference. Therefore, since the entire circumference of the cleaning foam discharged from the discharge portion 2g of the cleaning pipe 2 can be surrounded, the flow of air flowing around the cleaning pipe 2 can be easily stabilized, and the direction of the cleaning foam discharge can be improved. You can increase your sexuality.

According to the above configuration, the portion of the rinsing pipe 3 on the tip side of the slits 5a, 15a is disposed between the inner cylindrical portions 5, 15 and the outer cylindrical portions 6, 16, thereby forming a tapered shape. The amount of air flowing between the outer tubular portions 6, 16 and the inner tubular portions 5, 15 is reduced compared to the case where the inner tubular portions 5, 15 are arranged radially outward from the maximum diameter portions of the inner tubular portions 5, 15 formed in the An increase in loss can be suppressed.

As shown in FIG. 3, the discharge portion 3g of the rinsing pipe 3 is arranged to protrude from the air pipe 4 (the cover 10 is not included in the air pipe 4 as described above). .
According to the above configuration, the discharge portion 3g of the rinsing pipe 3 protrudes further to the tip side than the air pipe 4, so that the air discharged from the air pipe 4 (tip-side nozzle 30) expands in the radial direction. It hits the water discharged from the discharge part 3g of the piping 3 for rinsing. Therefore, the water discharged from the discharge portion 3g can be discharged over a wide range.

Attachment portions (attachment cylinder portions 9 and 19) to which the washing pipe 2 is attached are arranged inside the inner cylinder portions 5 and 15. As shown in FIG.
In this embodiment, the inner diameter of the mounting cylinder portion 9 of the base end nozzle 20 is smaller than the inner diameter of the mounting cylinder portion 19 of the distal end nozzle 30 by about 5 mm, and the distance between the mounting cylinder portions 9 and 19 is as shown in FIG. 2, there is provided a step 9a including a bearing surface against which the tip portion 2a of the washing pipe 2 abuts.

In the present embodiment, the mounting portions 9 and 10 are described as “mounting portions”, but they do not necessarily have to be cylindrical. It may be a projection (not shown) having a groove that fits into the .
According to the above configuration, the cleaning pipe 2 can be fixed inside the inner tubular portions 5 and 15 by the mounting portion, and the positional relationship between the inside of the inner tubular portions 5 and 15 and the flowing air can be stabilized.

<Holder>
Next, mainly referring to FIG. 12 in addition to FIGS. 1 to 3, the holder 40 will be described. 12 is a perspective view of the holder 40. FIG.
The holder 40 is for fixing the air pipe 4 to a carriage (not shown) or the like in a fixed posture. The holder 40 includes an angle 41 having an L-shaped cross section, two side plates 42 attached to the inside of the angle 41 with a gap therebetween, an assembly 43 attached to the angle 41 while being guided by the side plates 42, is mainly composed of

The angle 41 is formed by bending one plate. A bottom plate of the angle 41 is formed with eight mounting holes 41a arranged in a circle so as to penetrate therethrough in the thickness direction.
Four attachment holes 41e are formed in the upright plate of the angle 41 outside the side plate 42 in the width direction to penetrate the angle 41 in the thickness direction.

The side plate 42 is joined in contact with the upper surface of the bottom plate of the angle 41 and the rear surface of the upright plate. have. A portion of the rectangle facing the bent portion of the angle 41 is notched.

The group member 43 has an edge plate 43a, a side plate 43b, and a base end side plate 43c, and is formed in a π shape as a whole when viewed from above. Four mounting holes 43e, which are mounted by bolts and nuts (not shown), are formed through the edge plate 43a in the thickness direction at positions facing the mounting holes 41e of the angle 41. As shown in FIG.
A through hole 43d is formed through the bottom side plate 43c in the thickness direction, and the lower elbow 4b of the air pipe 4 is passed through the through hole 43d and fixed.

The cleaning device 1 according to this embodiment is an example as described above, and various modifications are possible within a common technical concept.
Moreover, the cleaning device 1 may be provided with a proximity sensor (not shown). Since the cleaning device 1 is provided with the proximity sensor in this way, it is possible to spray cleaning foam or water over a wide range while maintaining a certain distance from the outer surface of the train to which cleaning foam or water is to be discharged.

This embodiment includes the following technical ideas.
(1)
A washing device used to wash the outer surface of a train, comprising:
a cleaning pipe for discharging a cleaning liquid;
and an air pipe for discharging air,
The tip portion of the air pipe includes an inner cylindrical portion and an outer cylindrical portion disposed around the outer side of the inner cylindrical portion, and the air is supplied to each of the inner cylindrical portion and the outer cylindrical portion. configured to pass through
The inner tubular portion and the outer tubular portion each extend in a central axis direction of the air pipe,
The cleaning pipe is disposed radially inward of the inner cylindrical portion,
A cleaning device characterized by:
(2)
The cleaning device according to (1), wherein the inner tubular portion and the outer tubular portion are connected by a plurality of radially extending partition walls.
(3)
The cleaning device according to (1) or (2), wherein the inner tubular portion is formed in a tapered shape that narrows toward the distal end side.
(4)
The outer cylindrical portion is formed with a gentler inclination than the inner cylindrical portion with respect to the central axis of the air pipe, is formed in a straight pipe shape, or is formed in a flare shape that widens toward the tip side (3). Cleaning equipment as described.
(5)
Further comprising a rinsing pipe having a discharge part for discharging rinsing liquid,
According to any one of (1) to (4), the discharge part of the rinsing pipe is arranged between the inner cylinder part and the outer cylinder part when the discharge part is viewed from the front. washing equipment.
(6)
Further comprising a rinsing pipe having a discharge part for discharging rinsing liquid,
The inner cylindrical portion is provided with an insertion portion that penetrates in the thickness direction and allows the rinsing pipe to pass through,
The rinsing pipe passes through the insertion portion from the inside of the inner tubular portion from the inside to the outside in the radial direction, and a portion of the rinsing pipe on the tip side of the insertion portion is connected to the inner tubular portion. The cleaning device according to (3) or (4), which is disposed between the outer cylindrical portion.
(7)
The cleaning device according to (5) or (6), wherein the discharge portion of the rinsing pipe is arranged to protrude further to the tip side than the air pipe.
(8)
further comprising a cover attached to the outer periphery of the tip of the air pipe,
(7) The cleaning device according to (7), wherein the cover is arranged so as to protrude toward the tip side of the air pipe, and is arranged flush with or protruding toward the tip side of the rinsing pipe.
(9)
The cleaning device according to any one of (1) to (8), wherein an attachment portion to which the cleaning pipe is attached is provided inside the inner cylindrical portion.

Reference Signs List 1 cleaning device 2 cleaning pipe 2a tip 2b elbow 2c nipple 2d foaming nozzle 2e socket 2f socket 2g discharge portion 3 rinsing pipe 3a pipe 3b joint unit 3c bent portion 3g discharge portion 4 air pipe 4a tip 4b lower elbow 4c Upper Elbow 4g Discharge Portion 5 Inner Cylindrical Portion 5a Slit (Penetration Portion)
6 Outer cylindrical portion 7 Inner partition 8 Outer partition (partition)
9 Mounting cylinder part 9a Step 9b Grooved ridge 9c Straight part 9d Flare part 10 Cover 15 Inner cylinder part 15a Slit (insertion part)
16 Outer cylindrical portion 17 Inner partition wall 18 Outer partition wall (partition wall)
19 mounting cylinder part 20 proximal end nozzle 30 distal end nozzle 40 holder 41 angle 41a, 41e mounting hole 42 side plate 43 assembly 43a edge plate 43b side plate 43c base end plate 43d through hole 43e mounting hole

Claims (9)

A washing device used to wash the outer surface of a train, comprising:
a cleaning pipe for discharging a cleaning liquid;
and an air pipe for discharging air,
The tip portion of the air pipe includes an inner cylindrical portion and an outer cylindrical portion disposed around the outer side of the inner cylindrical portion, and the air is supplied to each of the inner cylindrical portion and the outer cylindrical portion. configured to pass through
The inner tubular portion and the outer tubular portion each extend in a central axis direction of the air pipe,
The cleaning pipe is disposed radially inward of the inner cylindrical portion,
A cleaning device characterized by: 2. The washing apparatus according to claim 1, wherein said inner tubular portion and said outer tubular portion are connected by a plurality of radially extending partition walls. 3. The cleaning device according to claim 1, wherein the inner tubular portion is formed in a tapered shape that narrows toward the distal end side. According to claim 3, the outer tubular portion is formed with a gentler inclination than the inclination of the inner tubular portion with respect to the central axis of the air pipe, is formed in a straight pipe shape, or is formed in a flare shape that widens toward the tip side. Cleaning equipment as described. Further comprising a rinsing pipe having a discharge part for discharging rinsing liquid,
The washing according to any one of claims 1 to 4, wherein the discharge part of the rinsing pipe is arranged between the inner cylinder part and the outer cylinder part when the discharge part is viewed from the front. Device. Further comprising a rinsing pipe having a discharge part for discharging rinsing liquid,
The inner cylindrical portion is provided with an insertion portion that penetrates in the thickness direction and allows the rinsing pipe to pass through,
The rinsing pipe passes through the insertion portion from the inside of the inner tubular portion from the inside to the outside in the radial direction, and a portion of the rinsing pipe on the tip side of the insertion portion is connected to the inner tubular portion. 5. The cleaning device according to claim 3, disposed between said outer tubular portion. The cleaning device according to claim 5 or 6, wherein the discharge portion of the rinsing pipe is arranged to protrude further to the tip side than the air pipe. further comprising a cover attached to the outer periphery of the tip of the air pipe,
8. The cleaning device according to claim 7, wherein the cover is arranged to protrude forward from the air pipe and is flush with the rinsing pipe or arranged to protrude toward the front end. The cleaning device according to any one of claims 1 to 8, wherein a mounting portion to which the cleaning pipe is attached is provided inside the inner cylindrical portion.

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