JP2909494B2 - Hose cleaning equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a hose cleaning device for cleaning hoses for fire fighting and the like.

[Conventional technology]

Firefighting hoses used in firefighting activities are contaminated with mud and oil, so they have conventionally been cleaned manually.However, twisted wound or piled hoses should not be twisted. Cleaning the surface with a brush or the like is extremely troublesome and requires a great deal of labor and a long time.

For this reason, for example, an electric hose cleaning apparatus as disclosed in Japanese Patent Publication No. 54-5563 has been proposed. This hose cleaning device includes a pair of hose support rollers arranged side by side in close proximity to the inlet side of the housing, and a pair of upper and lower circular members located behind the hose support rollers and rotating with their hair tips crossing each other. The brush is provided with a pair of upper and lower rubber rollers which are located behind the brush and rotate with their peripheral surfaces in contact with each other, and an injection nozzle for washing water is provided in front of the brush.

With this configuration, when washing the hose, the hose wound body is placed on the support roller, and the hose having the mouthpiece at the tip is pulled out from the hose wound body. It is pinched by a rubber roller and guided to the outlet of the housing, and the base is suspended from the outlet 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 made up of the upper and lower brushes that rotate so that the outer circumference rotates in the direction opposite to the running of the hose, and the nozzle. It is washed with the flushing water. In addition, a link mechanism is provided between the brush and the housing outlet, and when the base at the end of the hose passes over the pedestal of the link mechanism and rides on this, the upper rubber roller is moved to the lower side. As it rises away from the rubber roller, pull the hose from the outlet of the housing,
The washing operation is completed by passing the base without damaging the rubber roller.

[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 passes between the upper and lower brushes orbiting in the direction opposite to the running direction. At that time, the load on the brush drive motor becomes extremely large, and on the other hand, the brush must have a certain degree of hardness to clean the hose, so the cleaning effect can be improved without increasing the load on the motor. However, it is difficult in terms of design and practical application is considered difficult.

Further, as described above, since the base at the end of the hose rides on the pedestal of the link mechanism to separate the upper and lower rubber rollers, if the pedestal and the rubber roller are short, the rubber roller is not separated. Since the base passes through the rubber roller, the base may come into contact with the rubber roller and damage the rubber roller or cause a serious accident, resulting in a lack of reliability. Then, there is a problem that the entire device becomes large.

Also, because the brush orbits in the opposite direction to the rubber roller,
When the load on the brush side is increased during the transfer of the hose, there is a problem that the belt is slipped, the chain is slackened, and the cleaning is not sufficiently performed.

The present invention has been made in view of the above points, 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.

[Means for solving the problem]

In order to achieve such an object, according to the present invention, a lower feed roller that is supported at right angles to the direction of entry of the hose at the upper end opening of the housing and is driven to rotate from the driving side, and a lower end opening of the upper lid that can be opened and closed are provided. An upper feed roller supported corresponding to the lower feed roller and urged toward the lower feed roller by a spring member, wherein the upper and lower feed rollers wash the hose while transferring the hose. A high-pressure cleaning liquid injection nozzle provided on an upstream side and a downstream side of a hose transfer path by a roller; a hose base transfer conveyor stretched between the downstream high-pressure cleaning liquid injection nozzle and the feed roller; and the upstream side And a hose mouthpiece detection plate provided between the high-pressure washing jet nozzle and the feed roller.

(Operation)

When cleaning the hose, with the top lid open, the base at the beginning of the hose unwound from the hose winding is supported by a conveyor, the hose is placed on the lower feed roller, and then the top lid is closed and the motor and pump are closed. Is started, the base is transported by a conveyor, and the hose is transported by upper and lower feed rollers. At this time, a high-pressure washing liquid is ejected from the ejection nozzle, so that the hose is sufficiently washed without a brush.

When the base at the end of the unwinding hose comes in contact with the detection plate, the limit switch connected to the detection plate opens and stops the motor, so the upper lid is opened, released from being pinched by the upper and lower rollers, and left in the housing. The cleaning operation is completed by removing some of the hoses outside the housing.

〔Example〕

1 to 10 show an embodiment of a hose cleaning apparatus according to the present invention. FIG. 1 is a front view of the same, FIG. 2 is a side view of a housing inlet side, and FIG. FIG. 4 is a schematic front view of the inside of the housing and the upper lid, FIG. 5 is a plan view of the housing outlet side, FIG. 6 is a side view of FIG.
FIG. 7 is a front view taken along the line VII of FIG. 6, and FIG.
FIG. 9 is a rear view as viewed in the direction IX of FIG. 8, and FIG. 10 is an operation explanatory diagram. In the figure, a main body 2 of a hose cleaning device 1 has a housing 3 formed in a rectangular box shape, and an upper opening edge pivotally supported by a hinge 4 so as to be openable and closable. A fixed upper lid 5 is provided, and four casters 6 that roll when moving the caster 3 are attached to the lower end of the housing 3. Reference numeral 7 denotes a handle for releasing a latch (not shown) when the upper cover 5 is opened.

Reference numeral 8 denotes a hose storage box which is formed in a rectangular box shape and has one corner pivotally supported at the lower end of the housing 3 by a hinge so as to be rotatable as shown by a solid line in FIG. When it is not used, it is raised up as shown by a dashed line and stored in the main body 2 when not in use. Reference numeral 9 denotes a leg that lands on the floor when used and holds the hose storage box 8 in a horizontal position. Inside the hose storage box 8, a plurality of hose receiving rollers 10 are disposed in a substantially semicircular shape with the opening side facing upward, and the hose winding body 11 around which the hose to be cleaned is wound is placed. It is configured to be placed upright on the hose receiving roller 10.

At the upper end of the housing 3, a guide roller 14 that is supported by a fixed arm 13 and guides a hose 12, which is unwound from the hose winding 11, into the housing 3, is rotatable in proximity to the hose inlet 15. Is provided on the other outlet 16 side of the main body 2.
A fixed guide plate 17 that supports the hose 12 discharged from the housing 3 and changes its posture to a vertical position, and a guide plate 18 that is supported by the support plate so as to be swingably adjustable are provided.

A duct 19 that opens upward in the same manner as the casing 3 is formed on the front side of the upper end opening of the casing 3 in front view, and the hose 12 is supported between the front and rear side plates of the duct 19. The lower feed roller 21 that feeds out the hose 12 between a guide roller 20 that guides the running thereof and an upper feed roller 37 described later.
And a lower squeezing roller 22 for squeezing the hose 12 between the squeezing roller 38 described later, a drive shaft 23, and a driven shaft 24 are arranged in this order from the center of the duct 19 to the discharge port 16 side. Of these, the end shaft 21a of the lower feed roller 21 and the drive shaft 23 project into a space S formed between the back side plate of the duct 19 and the back side plate of the housing 3. I have. duct
A variable speed motor 25 fixed to the side plate 19a of the duct 19 is provided outside the bottom surface of the duct 19, and a sprocket 27 mounted on the motor shaft 26 and a protruding end shaft 21a of the lower feed roller 21 are provided. A chain 30 that transmits the rotation of the variable speed motor 25 to the lower feed roller 21 and the drive shaft 23 is provided between the sprocket 28 that is mounted on the shaft and the sprocket 29 that is mounted on the projecting end of the drive shaft 23. Is stretched. In addition, a chain 33a, a pair of sprockets 31 mounted on the driven shaft 24 and a pair of sprockets 32 mounted on the
A chain 33b is stretched, and a plurality of plates 33 covering almost the entire width of the duct 19 are provided between the chains 33a and 33b.
c are cross-linked in parallel. A conveyor 34 is formed by the sprockets 31, 32, the chains 33a, 33b, and the plate 33c at a position downstream of the feed roller 21 in the hose transfer direction.
By driving from the variable speed motor 25 side and traveling,
It is configured to transfer the base 35 at the tip of the hose 12.

On the other hand, a case 36 that opens downward like the upper cover 5 is formed on the front side of the upper cover 5 in a front view. In the case 36, an upper feed roller 37 and an upper squeeze roller 38 are provided. Corresponding to the lower feed roller 21 and the lower squeezing roller 22, respectively, are rotatably and vertically movable between front and rear side plates, and these upper rollers 37, 38 are compressed by coil springs 39, 40. The lower rollers 21 and 22 are urged against and pressed against each other, and are configured to send out and squeeze the hose 12.

Here, the upper feed roller 37 and the upper squeezing roller 38 are supported by a case 36 as shown in FIGS.
That is, a guide hole 41 whose lower end is opened is formed in the side plate located forward and backward in the front view of the case 36, and the groove 42a of the holder 42 is fitted into the guide hole 41.
The holder 42 has an end shaft of the upper feed roller 37 via a bearing 43.
37a is pivotally supported, and its movement in the axial direction is restricted by the snap ring 44 and the guide plate 45. The rubber bush 46 is a seal member that prevents the washing water from flowing to the bearing 43 side. Further, the compression coil spring 39 includes a holder
The compression coil spring 39 is interposed between a spring holder 47 fixed to the case 36 by a screw 48 and a compression spring 39.
It is supported by a guide rod 49 fixed to 47. Reference numeral 50 denotes a stopper for the holder 42 pressed by the compression coil spring 39,
It is screwed to the guide plate 45. Thus, when the upper lid 5 is closed, the upper feed roller 37 is pressed against the lower feed roller 21 by the spring force of the compression coil spring 39.

Further, inside the housing 3 in the transfer path of the hose 12, injection nozzles 51 and 52 are provided vertically above and below the running hose 12, and the hose inlet and outlet of the housing 3 are provided. In the vicinity of 15, injection nozzles 53 are arranged vertically above and below the running hose 12. The injection nozzles 51 and 52 are connected to a high-pressure water generating pump 56 by a pipe including an electromagnetic valve 54 and a three-way switching valve 55, and the high-pressure water generating pump 56 is driven to rotate by a motor 57. I have. Thus, when the motor 57 is started, the cleaning water in the cleaning water tank 58 is injected from the injection nozzles 51 and 52, and the cleaning liquid pumped from the cleaning liquid tank 59 by the electromagnetic pump 60 is injected from the injection nozzle 53. It is configured to: Reference numerals 61 and 62 denote drain ports opened in the bottom plate of the duct 19, which are connected to the hose storage box 8 and configured to discharge the cleaning liquid after hose cleaning to the hose storage box 8. Reference numeral 63 denotes a hand gun that sprays cleaning water manually. A base 64 is attached to the unwinding end of the hose 12, and guide plates 65, 66 for supporting the base 64 during running of the hose 12 are provided near the entrance in the housing 3.
Is provided.

Further, as shown in FIGS. 8 and 9, a detection device 67 for detecting passage of the base 64 is provided upstream of the upper and lower feed rollers 37 and 21 in the hose transfer direction. This detector 67
Is rotatably attached to the side plate of the case 36 and the lower end is a hose.
12, a detection plate 68 facing the traveling path, an operation plate 70 fixed to a shaft 69 pivotally supporting the detection plate 68, a limit switch 72 fixed to a support plate 71 on the case 36 side, Board
A tension spring 73 stretched between 71 and the operation plate 70, and a stopper 74 for regulating the rotation end of the detection plate 68 are provided,
The base 64 at the end of the hose that is rewound for cleaning is the detection plate.
4, the detection plate 68 rotates to the position shown by the dashed line in FIG. 4 against the tensile force of the tension spring 73, passes the base 64, and the upper end of the operation plate 70 is moved to the limit switch 72.
, And the rotation of the motor 25 is stopped.

Reference numerals 75 and 76 in FIG. 4 denote rubber curtains for preventing the washing liquid or washing water from splashing out of the main body 2, and are fixed inside the case 36.
77, 78 are guide plates located between the feed rollers 37, 21 and the squeeze rollers 38, 22 and disposed vertically above and below the traveling path of the hose 12, and the upper guide plate 77 is located on the case 36 side. , And the lower guide plate 78 is fixed to the duct 19 side. In this way, the running hose 12
Is configured not to bend.

In this embodiment, the example in which the injection nozzles 51 are disposed above and below the traveling hose 12 has been described.However, it is preferable to provide another injection nozzle before and after the front view to improve the cleaning power of the hose 12. .

The operation of the hose cleaning device configured as described above will be described. When performing cleaning work, the hose storage box 8 must be in the first position.
After rotating the legs 9 from the retracted state shown by the dashed line to the position shown by the solid lines to land the legs 9, the hose winding body 11 is placed on the hose receiving roller 10 in an upright state. And the top lid 5
Is opened by a predetermined angle, the hose 12 is rewound and brought into contact with the guide roller 14, guided into the main body 2, and the rewind start end cap 35 is supported by the plate 33c of the cap transfer conveyor 34. 12 is placed on each roller 20,21,22. Then, when the upper lid 5 is closed, the upper feed roller 37 is pressed against the lower feed roller 21 by the elastic force of the compression coil spring 39, and the upper throttle roller 38 is pressed against the lower throttle roller 22 by the elastic force of the compression coil spring 40. Is done. As a result, the hose 12 is held between the upper and lower feed rollers 37 and 21 and between the upper and lower squeezing rollers 38 and 22. At this time, the detection plate 6
8 is rotated to the solid line position in FIG. 4 by the tension force of the tension spring 73, the rotation end is regulated by the stopper 74, and the contact of the limit switch 72 is closed to rotate the variable speed motor 25. Making it possible.

Thus prepared. After that, when starting the variable speed motor 25 and the motor 57, so at the rise time of t ₀ ~t ₁ of the high-pressure water generator pump 56 as shown in FIG. 10 variable speed motor 25 rotates, Conveyor with lower feed roller 21 by chain 30
As the hose rotates with the rotation of the hose, the washing water is sprayed from the spray nozzles 51 and 52. As a result, the hose 12
The base 35 at the rewind start end is transferred by the base transfer conveyor 34. The rollers cleaned hose section in the beginning in the cleaning is over injection nozzle 51 of the base 35 passes between upper and lower injection nozzles 52, i.e. the time indicated at t ₂ in FIG. 10,
The operation of the timer stops, the variable speed motor 25 rotates at high speed, and the solenoid valve 54 closes, so that the hose 12 is washed with the washing water ejected from the ejection nozzle 51 while being sent by the upper and lower feed rollers 37, 21, After being squeezed by the upper and lower squeezing rollers 38 and 22, the sheet is discharged to the outside along the guide plates 17 and 18.
The cleaning liquid is supplied from the injection nozzle 53 to the water hose 12 at regular intervals by the electromagnetic pump 60 together with the rotation of the variable speed motor 25.
Connected to.

When the hose 12 is unwound and the end 64 of the unwinding end comes into contact with the detection plate 68 while being supported by the guide plates 65 and 66, the detection plate 68 rotates against the tensile force of the tension spring 73. Then, since the contacts of the limit switch 72 are opened, the motors 25 and 57 and the electromagnetic pump 60 are stopped. At this time, since the base 64 stops before the upper and lower feed rollers 37 and 21, the feed rollers 37 and 21 are not damaged.

Thereafter, the upper lid 5 is opened, and the upper feed roller 37 and the upper squeezing roller 38 move together with the upper lid 5 and separate from the hose 12, so that the hose 12 and the base 64 can be taken out of the housing 3, The cleaning operation ends.

After the cleaning operation, after closing the upper lid 5, the hose storage box 8 is rotated and stored in the main body 2, and the caster 6 is rolled to move the hose cleaning device 1 to a corner of a warehouse. Since the hose storage box 8 is stored in the main body 2,
The space occupied by the entire hose cleaning device 1 is reduced.

〔The invention's effect〕

As is apparent from the above description, according to the present invention, the high-pressure cleaning liquid injection nozzle provided on the upstream side and the downstream side of the hose transfer path by the upper and lower feed rollers, the downstream high-pressure cleaning liquid injection nozzle, and the feed roller And a hose nozzle detecting plate provided between the upstream high-pressure cleaning jet nozzle and the feed roller. Since the rotary brush is not provided, the motor and the chain are not damaged due to the overload generated when the base passes through the rotary brush, and the cleaning effect is improved. In addition, since the base at the end of the hose is securely stopped by the effort of the hose feed roller, the hose feed roller is not damaged or accidents occur, and safety and reliability are improved. Further, the distance between the base detection plate and the hose feed roller can be shortened, and the size of the apparatus can be reduced. In addition, while the nozzle at the beginning of the hose is being transferred by the hose nozzle transfer conveyor, the nozzle at the beginning of the hose is washed by the washing water injected from the high-pressure washing liquid injection nozzle on the downstream side,
The base of the hose end drawn by the feed roller is
Since the washing is performed by the washing water ejected from the high pressure washing liquid ejecting nozzle on the upstream side, the labor for manually washing only the base at the hose start end and the end is conventionally omitted, and the work efficiency is improved.

[Brief description of the drawings]

1 to 10 show an embodiment of a hose cleaning apparatus according to the present invention. FIG. 1 is a front view of the same, FIG. 2 is a side view of a housing inlet side, and FIG. Side view,
FIG. 4 is a schematic front view of the inside of the housing and the upper lid, FIG. 5 is a plan view of the housing outlet side, FIG. 6 is a side view of FIG.
FIG. 6 is a front view as viewed in VII of FIG. 6, FIG. 8 is a side view as viewed in VIII of FIG. 4, FIG. 9 is a rear view as viewed in IX of FIG. 8, and FIG. 1 ... Hose cleaning device, 3 ... Housing, 5 ... Top lid, 8 ...
... Hose storage box, 11 ... Hose winding body, 12 ... Hose, 19
… Duct, 21… Lower feed roller, 25… Variable speed motor, 33a, 33b… Chain, 34… Conveyor, 35… Base, 37… The above feed roller, 39… Compression coil spring, 5
1,51,53 …… Injection nozzle, 56 …… High-pressure water generation pump, 57
... Motor, 64 ... Base, 67 ... Detector, 68 ... Detector plate, 72 ... Limit switch.

Claims (1)

(57) [Claims] 1. A lower feed roller which is supported at right angles to the direction of entry of a hose in an upper end opening of a housing and is driven to rotate from a driving side, and a lower end opening of an openable and closable upper lid corresponds to the lower feed roller. An upper feed roller urged toward a lower feed roller side by a spring member, wherein the upper and lower feed rollers wash the hose while transferring the hose. A high-pressure cleaning liquid injection nozzle provided on the side and the downstream side,
A hose base transfer conveyor stretched between the downstream high-pressure cleaning liquid injection nozzle and the feed roller, and a hose base detection plate provided between the upstream high-pressure cleaning injection nozzle and the feed roller. A hose cleaning device comprising: