JPH04218175A - Hose cleaner - Google Patents

Abstract

PURPOSE:To smoothly transfer and surely clean a hose for preventing a roller from damages and accidents by supporting a high pressure cleaning liquid injection nozzle in a transfer path of upper and lower feed rollers for transferring the hose and providing a hose mouth-piece detecting plate at the upstream side of the feed rollers. CONSTITUTION:A hose 12 is sandwiched by upper and lower feed rollers 30, 22 and upper and lower throttle rollers 29, 21 with a mouth-piece 12a at the unwinding starting end being supported on a guide plate 17. A detecting plate 60 is regulated by a tension spring 65 with respect to the pivotal limitation by a stopper 66 to close a contact of a limit switch 64 and enable the rotation of a variable speed motor 23. When motors 23, 49 are started, a lower feed roller 22 is rotated by a chain 27. While the hose 12 is transferred, cleaning water is injected from injection nozzles 43, 44 and cleaning liquid in a tank 51 is injected from an injection nozzle 45. When the cleaning proceeds and the mouth-piece 56 of the hose 12 supported on guide plates 57, 58 abuts against the detecting plate 60, the contact of the switch 64 is opened to stop the motors 23, 49 and an electromagnetic pump.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hose cleaning device for cleaning fire hoses while running them inside a housing.

0002

[Prior art] Fire hoses used for firefighting activities are
Conventionally, this was done manually because it gets dirty with mud and oil, but now the process involves hand-wringing the wound or piled hoses and cleaning the surface with a brush while making sure that they are not twisted. This was an extremely tedious and labor-intensive task that required a lot of time. So, for example,
An electric hose cleaning device as disclosed in Japanese Patent No. 5633 has been proposed. This hose cleaning device consists of a pair of hose support rollers arranged in front and back in close proximity to the inlet side of the housing, and a pair of upper and lower circular hoses located behind the hose support rollers that rotate with their bristles intersecting each other. brush and
It is equipped with a pair of upper and lower rubber rollers located behind the brush and rotating with their peripheral surfaces facing each other, and a spray nozzle for cleaning water is provided in front of the brush.

[0003] With this structure, when cleaning the hose, the hose roll is placed on the support roller, the hose having a cap at the tip is pulled out from the hose roll, and then the hose is removed. is held between upper and lower rubber rollers and guided to the exit of the housing, and the cap is allowed to hang from the exit of the housing to the outside. After preparing in this way, when the motor is started, the hose that is sent out by the rubber roller and discharged from the outlet of the housing is passed through the upper and lower brushes that rotate so that the outer circumference rotates in the opposite direction of the hose travel, and the nozzle. It is washed with a jet of washing water. In addition, a link mechanism is provided between the brush and the housing outlet, and when the cap at the end of the hose passes through the holder of this link mechanism and rides on this, the upper rubber roller moves to the lower rubber roller. Since the hose rises away from the rubber roller, by pulling the hose out of the outlet of the casing, the cleaning operation is completed by passing the hose through the mouthpiece without damaging the rubber roller.

0004

[Problems to be Solved by the Invention] However, in such a conventional hose cleaning device, as described above, the mouthpiece attached to the unwinding end of the hose is connected to the upper and lower brushes that revolve in the opposite direction to the direction in which the hose runs. At that time, the load on the brush drive motor becomes extremely large.On the other hand, the hardness of the brush must be increased to some extent in order to clean the hose, so the load on the motor becomes extremely large. It is difficult due to the design to increase the cleaning effect without causing any damage, and it seems difficult to put it into practical use.

Furthermore, as mentioned above, the cap at the end of the hose rides on the pedestal of the link mechanism to separate the upper and lower rubber rollers, so if the distance between the pedestal and the rubber roller is short, the rubber rollers will be separated. The nozzle will pass through the rubber roller before the holder and the rubber roller come into contact with each other. If the time is increased, there is a problem in that the entire device becomes larger. Further, unless the hose is pulled out from the discharge port, the hose fed by the rubber roller may not be discharged smoothly, resulting in a problem that a satisfactory cleaning function cannot be expected.

Furthermore, since the brush rotates in the opposite direction to the rubber roller, the load on the brush increases during the transfer of the hose, causing belt slippage and chain slack, resulting in insufficient cleaning. There's a problem.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a hose cleaning device that can reliably clean a hose without providing a rotating brush.

[0008]

[Means for Solving the Problems] In order to achieve such an object, the present invention supports a high-pressure cleaning liquid spray nozzle in the hose transfer path of the upper and lower feed rollers that transfer the hose within the housing, and A guide member that slopes downward toward the hose discharge port of the housing is supported on the downstream side of the housing in the hose conveying direction, and a hose cap detection plate is positioned on the upstream side of the feed roller in the hose conveying direction. It was supported on the upper lid of the body.

[0009]

[Operation] When cleaning the hose, place the hose unwound from the hose roll on the lower feed roller with the top cover open, support the mouthpiece at the starting end of the hose with the guide member, and then close the top cover. When the motor and pump are started, the hose cap slides down on the guide member and the hose is transported by the upper and lower feed rollers. The hose will be thoroughly cleaned even without it. When the cap at the end of the unwinding hose comes into contact with the detection plate, the limit switch connected to the detection plate opens and stops the motor, so the upper cover is opened and the hose is released from the upper and lower rollers and remains inside the housing. The cleaning work is completed by removing some of the hoses from the housing.

0010

[Embodiment] Figures 1 to 10 show an embodiment of the hose cleaning device according to the present invention, in which Figure 1 is a front view thereof, Figure 2 is a side view of the housing inlet side, and Figure 3 is a housing outlet side view. 4 is a schematic front view of the inside of the casing and the top cover, FIG. 5 is a plan view of the casing exit side, FIG. 6 is a side view from VI in FIG. 4, and FIG. 7 is a front view from VII in FIG. 6. 8 is a side view as viewed from VIII in FIG. 4, FIG. 9 is a rear view as viewed from IX in FIG. 8, and FIG. 10 is a diagram for explaining the operation. In these figures, the main body 2 of the hose cleaning device 1
The housing 3 includes a housing 3 formed in the shape of a rectangular parallelepiped housing, and an upper lid 5 which is pivoted to the upper opening edge of the housing 3 so as to be openable and closable with a hinge 4, and whose opening angle is determined by an arbitrary angle stay damper (not shown). Four casters 6 are attached to the lower end of the casing 3, which roll when the casing 3 is moved. Reference numeral 7 designates a handle for releasing a latch (not shown) when opening the top cover 5.

8 is formed into a rectangular box shape, and one corner is connected to the housing 3.
It is a hose storage box rotatably supported by a hinge at the lower end, and when in use, it is laid down and pulled out of the main body 2 as shown by the solid line in Figure 1, and when not in use, it is raised up as shown by the chain line. It is configured so that it can be stored in the main body 2. 9
are legs that are placed on the floor to maintain the horizontal posture of the hose storage box 8 during use. Inside the hose storage box 8, a plurality of hose receiving rollers 10 are arranged in a substantially semicircular shape with the opening side facing upward, and the hose receiving rollers 10 hold the hose roll 11 around which the hose to be cleaned is wound. It is configured to be placed upright on the hose receiving roller 10.

A guide roller 14 is provided at the upper end of the housing 3 to guide the hose 12 that is supported by the fixed arm 13 and is unwound from the hose roll 11 into the housing 3.
The hose 1 to be discharged from the housing 3 is provided rotatably in the vicinity of the main body 2, and the hose 1 to be discharged from the housing 3 is provided on the other outlet 16 side of the main body 2.
A fixed guide plate 17 in which a slit 17a is formed to support and change the position of the guide plate 2 to a vertical position, and a guide plate 18 supported by a support plate in a swing-adjustable manner are provided. A duct 19 that opens upward like the case 3 is formed on the front side of the upper end opening of the case 3 when viewed from the front, and a hose 12 is supported between the front and rear side plates of this duct 19. The hose 1 is compressed between a guide roller 20 that guides its travel, a lower squeeze roller 21 that squeezes the hose 12 between an upper squeeze roller 29 (described later), and an upper feed roller 30 (described later).
2 are disposed in this order from the center of the duct 19 toward the discharge port 16.
Among these, the end shaft 22a of the lower feed roller 22 protrudes into the space S formed between the back side plate of the duct 19 and the back side side plate of the housing 3. The guide plate 17 is located on the downstream side of the feed rollers 30 and 22 in the hose conveyance direction, and is supported so as to be inclined to become lower toward the discharge port 16.
It is designed to slide down.

[0013] On the outside of the bottom surface of the duct 19, there is a
A variable speed motor 23 is fixed to the side plate 19a of the lower feed roller 22, and a sprocket 25 is attached to the motor shaft 24, and a sprocket 26 is attached to the protruding end shaft 22a of the lower feed roller 22. A chain 27 that transmits the rotation of the variable speed motor 23 to the lower feed roller 22 is stretched between them.

On the other hand, on the front side of the upper lid 5 when viewed from the front, there is a
A case 28 is formed which opens downward in the same way as above, and inside this case 28, an upper squeeze roller 29 and an upper feed roller 30 are arranged, corresponding to the lower squeeze roller 21 and the lower feed roller 22, respectively. It is mounted on a shaft between the front and rear side plates so as to be freely rotatable and vertically movable, and these upper rollers 29 and 30 are urged and pressed against the lower rollers 21 and 22 by compression coil springs 31 and 32. Ori,
It is configured to squeeze the hose 12 and send it out. Here, the upper feed roller 30 and the upper squeeze roller 29 are pivotally supported by the case 28, as shown in FIGS. 6 and 7. That is, guide holes 33 whose lower ends are open are formed in the side plates located at the front and rear of the case 28 when viewed from the front.
A groove 34a of the holder 34 is fitted into the guide hole 33. An end shaft 30a of the upper feed roller 30 is rotatably supported by the holder 34 via a bearing 35, and its movement in the axial direction is restricted by a snap ring 36 and a guide plate 37. Note that the rubber bush 38 is a sealing member that prevents cleaning water from flowing toward the bearing 35 side. The compression coil spring 32 is interposed between the holder 34 and a spring receiver 40 fixed to the case 28 with a screw 39, and the compression coil spring 32 is connected to a guide rod fixed to the spring receiver 40. It is supported by 41. Reference numeral 42 denotes a retaining plate for the holder 34 pressed by the compression coil spring 32, and is screwed to the case 28. As a result, when the upper lid 5 is closed, the upper feed roller 30 is pressed against the lower feed roller 22 by the spring force of the compression coil spring 32.

Furthermore, injection nozzles 43a and 4 are provided at the inlet and outlet sides of the housing 3, which is the transfer path of the hose 12.
3b, 43c, 43d and 44a, 44b (hereinafter, these injection nozzles are collectively referred to as injection nozzles 43, 44) are provided above and below (43c, 43d are on the left and right) sandwiching the running hose 12. In addition, in the vicinity of the hose inlet 15 of the housing 3, injection nozzles 45a and 45b (hereinafter these injection nozzles are collectively referred to as injection nozzles 45) are provided.
are disposed above and below the running hose 12. Of these, the injection nozzle 43 is the solenoid valve 4.
6 and a three-way switching valve 47 is connected to a high-pressure water generation pump 48 , and the high-pressure water generation pump 48 is rotationally driven by a motor 49 . By doing this, when the motor 49 is started, the cleaning water in the cleaning water tank 50 is injected from the injection nozzles 43 and 44, and
The cleaning liquid pumped up from the cleaning liquid tank 51 by the electromagnetic pump 52 is configured to be injected from the injection nozzle 45. Reference numerals 53 and 54 indicate drain ports opened in the bottom plate of the duct 19, which are connected to the hose storage box 8, and discharge the cleaning liquid after hose cleaning to the hose storage box 8 from the drain ports 53 and 54. is configured to do so. The reference numeral 55 is a hand gun that manually sprays cleaning water.

A cap 56 is attached to the unwinding end of the hose 12, and a guide plate 57, which supports the cap 56 when the hose 12 runs, is installed near the entrance of the housing 3.
58 are provided. Further, as shown in FIGS. 8 and 9, a detection device 59 for detecting passage of the mouthpiece 56 is provided upstream of the upper and lower feed rollers 30 and 22 in the hose transfer direction. This detection device 59 includes a detection plate 60 that is rotatably pivoted to the side plate of the case 28 and whose lower end faces the running path of the hose 12, and an actuation plate that is fixed to a shaft 61 that pivots the detection plate 60. 62, a limit switch 64 fixed to the support plate 63 on the case 28 side, and these support plates 63
, a tension spring 65 stretched between the operating plates 62, and a stopper 66 for regulating the rotation end limit of the detection plate 60. 60, the detection plate 60 rotates clockwise from the position shown in FIG. Open the contact and motor 23
It is configured to stop the rotation of. In addition, Figure 4
Reference numerals 67, 68, and 69 are rubber curtains for preventing cleaning liquid and cleaning water from splashing outside the main body 2, and are fixed inside the case 36.

The operation of the hose cleaning device constructed as above will be explained. When performing cleaning work, rotate the hose storage box 8 from the stored state shown by the chain line in FIG. Place it on the hose receiving roller 10. Then, after opening the top cover 5 by a predetermined angle, the hose 1
2 is rewound and attached to the guide roller 14, guided into the main body 2, and the rewound end of the hose 12 is attached to each roller 20, 21,
22, and the cap 12 at the start end of the unwinding.
a is supported by the guide plate 17. When the upper lid 5 is closed, the upper feed roller 30 is pressed against the lower feed roller 22 by the elastic force of the compression coil spring 32, and the upper squeeze roller 29 is pressed against the lower squeeze roller 21 by the elastic force of the compression coil spring 31. be done. As a result, the hose 12 is held between the upper and lower feed rollers 30 and 22, and also between the upper and lower squeezing rollers 29 and 21. At this time, the detection plate 60 is rotated to the illustrated position by the tensile force of the tension spring 65, and the rotation end limit is regulated by the stopper 66, and the contact of the limit switch 64 is closed to control the variable speed motor 23. It allows rotation.

After preparing in this way, the variable speed motor 23
When the motor 49 is started, as shown in FIG.
Since the variable speed motor 23 rotates after the rise time of the high pressure water generation pump 48 of ~t1, the lower feed roller 22 is rotated by the chain 27, the hose 12 is transferred, and the cleaning water is discharged from the injection nozzles 43 and 44. is injected. Further, the cleaning liquid pumped up from the cleaning liquid tank 51 by the electromagnetic pump 52 is injected from the injection nozzle 45. When the transfer of the hose 12 is started, the hose 12
The mouthpiece 12a at the start end of rewinding slides down on the guide plate 17 and is discharged from the discharge port 16. Then, when the nozzle 12a is finished being cleaned and the hose section that was first cleaned by the injection nozzle 43 passes between the upper and lower injection nozzles 44a and 44b,
That is, by the time indicated by the symbol t2 in FIG. 10, the variable speed motor 23 rotates at high speed and the solenoid valve 46 closes, so that the hose 12 is fed by the upper and lower feed rollers 37 and 21 while the cleaning fluid is sprayed from the spray nozzle 43. washed with water,
After being squeezed by upper and lower squeezing rollers 29 and 21, it is discharged to the outside along guide plates 17 and 18. The cleaning liquid is injected from the injection nozzle 53 onto the hose 12 at regular intervals by the electromagnetic pump 52 as the variable speed motor 23 rotates.

When the hose 12 is unwound and the base 56 at the end of the unwinding comes into contact with the detection plate 60 while being supported by the guide plates 57 and 58, the detection plate 60 resists the tensile force of the tension spring 65. The motors 23 and 49 and the electromagnetic pump 52 are stopped because the contact point of the limit switch 64 is opened. At this time, the cap 56 stops before the upper and lower squeezing rollers 29, 21, so that the squeezing rollers 29, 21 are not damaged. After that, the upper lid 5 is opened, and the upper feed roller 30 and the upper squeezing roller 29 move together with the upper lid 5 and separate from the hose 12, so that the hose 12 and the cap 56
can be taken out of the housing 3, and the cleaning work is completed. After the cleaning work is completed, after closing the top lid 5, the hose storage box 8 is rotated and stored inside the main body 2, and the casters 6 are rolled to move the hose cleaning device 1 to a corner of the warehouse. Since the hose storage box 8 is stored in the main body 2, the space occupied by the hose cleaning device 1 as a whole is reduced.

In this embodiment, the guide member for sliding down the starting end side cap 12a of the hose 12 is a plate-shaped guide plate 1.
7 is shown, but if the cleaning water from the injection nozzle 44 is applied to the nozzle 12a and the nozzle 12a is It may be of any shape as long as it can slide down on the guide member.

[0021]

As is clear from the above description, in the hose cleaning device according to the present invention, a high-pressure cleaning liquid spray nozzle is supported in the hose transfer path of the upper and lower feed rollers that transfer the hose within the housing, and A guide member that slopes downward toward the hose discharge port of the housing is supported on the downstream side of the roller in the hose transfer direction, and a hose cap detection plate is positioned on the upstream side of the feed roller in the hose transfer direction. Because it is supported by the upper lid of the housing, there is no rotating brush for cleaning the hose like in the past, so there is no damage to the motor or chain due to overload that occurs when the nozzle passes the rotating brush. It disappears. In addition, since the hose slides on the guide member and is smoothly transferred and discharged, the cleaning effect is improved, and the mouthpiece at the end of the hose reliably stops in front of the hose feed roller, preventing damage to the hose feed roller. This eliminates the occurrence of accidents and improves safety and reliability.Furthermore, the distance between the cap detection plate and the hose feed roller can be shortened, resulting in a more compact device.

[Brief explanation of the drawing]

FIG. 1 is a front view of a hose cleaning device.

FIG. 2 is a side view of the casing entrance side.

FIG. 3 is a side view of the casing exit side.

FIG. 4 is a schematic front view of the inside of the casing and the top cover.

FIG. 5 is a plan view of the outlet side of the casing.

FIG. 6 is a side view from VI in FIG. 4;

7 is a front view from VII in FIG. 6; FIG.

FIG. 8 is a side view from VIII in FIG. 4;

9 is a rear view seen from IX in FIG. 8; FIG.

FIG. 10 is an operation explanatory diagram.

[Explanation of symbols]

1 Hose cleaning device 3 Housing 5 Top lid 6 Hose storage box 11 Duct 12 Hose 13a Base 17 Guide plate 19 Duct 21 Lower feed roller 23 Variable speed motor 35 Base 37 Upper feed roller 42 Injection nozzle 44 Injection nozzle 45 Injection nozzle 48 High pressure water generation pump 57 Variable speed motor 59 Detection device 60 Detection plate 64 Limit switch

Claims (1)

[Claims] 1. A lower feed roller supported perpendicularly to the direction of entry of the hose at the upper end opening of the casing and rotationally driven from the driving side, and a lower end opening of the upper cover which can be opened and closed, corresponding to the lower feed roller. and an upper feed roller that is supported by a spring member and biased toward the lower feed roller, and the hose cleaning device cleans the hose while being transferred by the upper and lower feed rollers, in which the hose is transferred within the hose transfer path by the upper and lower feed rollers. a high-pressure cleaning liquid injection nozzle supported by the feed roller; a guide member located on the downstream side of the feed roller in the hose transfer direction and supported so as to be inclined to become lower toward the hose discharge port of the housing; and the feed roller. and a hose mouthpiece detection plate located upstream in the hose transfer direction and supported by the upper lid.