JPH0736674Y2 - Hose cleaning equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a hose cleaning device suitable for application to fire hoses and the like.

[Prior Art] Conventionally, as this type of hose cleaning device, for example,
The one disclosed in 56-36359 is known. This hose washing device is provided with a casing that opens upward and accommodates a motor in the lower portion, and an upper lid that is pivotally supported on this casing via a hinge so that it can be opened and closed. Includes a lower brush that is belt-connected to the motor and a plurality of lower rollers that are gear-connected to the lower brush and are arranged in parallel along an opening end. Further, at the lower end opening of the upper lid, an upper brush and an upper roller that are in contact with the lower brush and the lower roller by closing the upper lid are arranged in parallel along the opening end. It should be noted that by closing the upper lid, the gear axially attached to the axial end portion of the upper brush meshes with the gear axially attached to the axial end portion of the lower brush so that both brushes are drive-connected. ing.

With this configuration, when the hose cap is out of the machine, the upper lid is closed and the end of the hose is clamped between the upper and lower rollers and between the brushes. The sent hose is cleaned by the upper and lower brushes and discharged.

[Problems to be Solved by the Invention] However, in such a conventional hose cleaning device, the upper roller is simply rotatably supported by a case inside the upper lid and is downwardly moved by a compression coil spring. Since it is urged and pressed against the lower roller, the cleaning liquid injected from the nozzle leaks out of the case from the guide hole that guides and supports the upper roller so that it can move up and down.
There has been a problem that the cleaning liquid is applied to the bearings on the roller shaft, the gear group as the drive mechanism, the chain, the motor, and the like.

Therefore, the present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to reliably prevent the cleaning liquid from leaking to the outside from the guide hole of the case for housing the upper roller. It is to provide a hose cleaning device.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a lower roller that is rotatably supported at an upper end opening of a duct in a housing and an openable and closable opening edge of the housing. An upper roller that is rotatably supported in the lower end opening of the case in the upper lid that is pivotally supported and press-contacts with the lower roller, and a shaft end of the upper roller that is fitted through a bearing and both ends of the outer peripheral surface. A holder whose part is fitted in a guide hole provided in the case and held slidably in the vertical direction, a side plate fixed to the inner end surface of the holder to close the guide hole, the case side spring receiver and the holder And a compression coil spring disposed between the upper roller and the lower roller by closing the upper lid.

[Operation] The side plate attached to the holder seals the guide hole of the case to prevent the cleaning liquid from leaking to the outside of the case.

[Embodiment] Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

FIG. 1 is an enlarged cross-sectional view of a main part of a hose cleaning device according to the present invention, FIG. 2 is a view taken in the direction of arrow A in FIG. 1, and FIG.
-III sectional view, FIG. 4 is a front view of the apparatus, FIG. 5 is a side view of the apparatus, FIG. 6 is a plan view showing the apparatus with the upper lid and upper rollers removed, and FIG. FIG. 8 is a schematic configuration diagram of a power transmission path of brushes and rollers and an automatic stop device, and FIG. 8 is a developed sectional view of a main part of a transmission.

4 to 8, the schematic configuration of the hose cleaning device will be described. The main body 2 of the hose cleaning device 1 is a box 3 made of a rectangular parallelepiped whose upper surface is open, and a rear end of an upper surface opening of the box 3. It has an upper lid 5 which is pivotally supported in the vertical direction so as to be openable and closable vertically via a hinge 4, and at the lower end of the housing 3, four casters 6 which roll when moving this are mounted. ing. Reference numeral 7 is a handle for releasing a latch (not shown) when the upper lid 5 is opened, and 8 is formed in a rectangular parallelepiped box shape, and a couple is vertically rotatable by a hinge (not shown) at the lower end of the housing 3. The hose storage box pivotally supported by the storage box 8 is laid down as shown by the solid line in FIG. 4 when it is used and pulled out of the main body 2. When not used, it is erected as shown by the chain line. It is configured to be stored in the main body 2. Reference numeral 9 is a leg that supports the hose storage box 8 in a substantially horizontal manner by being brought into contact with the floor 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 a hose roll 11 around which a hose 12 to be washed is wound. Is configured to stand upright on the hose receiving roller 10.

The fixed arm 13 (fourth
(See FIG. 5), a guide roller 14 for guiding the hose 12 fed from the hose winding body 11 into the housing 3.
Is rotatably provided in the vicinity of the hose insertion port 15, and the hose 12 discharged from the housing 3 is supported at the left side opening end of the housing 3 to change the posture vertically downward. Stand
16 is supported by hinges 17 and links 18 and is provided so as to be foldable. Inside the housing 3, a motor 19 (FIG. 7) for driving a brush for cleaning the hose and a roller is housed.

A brush and a roller for cleaning the hose and a rotation driving device for the hose will be described. The duct 20 is provided at the upper end opening of the housing 3.
(FIG. 7) is housed in the front and rear side plates of the duct 20. A lower roller 21 of a rotary roller type having a rotary shaft and a large number of bristles, a lower roller 22, a guide roller 14 and a base. It is located between 16 and is pivotally supported. In addition, inside the case 23 (Fig. 1) housed in the upper lid 5, the upper brush is
24 and the upper roller 25 are the lower brush 21 and the lower roller.
Corresponding to each of the 22, it is rotatably supported and stored. Then, by closing the upper lid 5, the upper brush 24 is brought into contact with the lower brush 21 with bristles, and the upper roller 25 is pressed against the lower roller 22 by the elastic force of the compression coil spring 26. It is configured.

The upper roller 25 is housed in the case 23 so as to be vertically movable. The bearing structure of the upper roller 25 will be described in detail with reference to FIG. 1 to FIG. The holder 28 is fitted in via. The holder 28 is made of a tubular body with both ends open, and has a pair of left and right cutouts 29a, 29b formed of longitudinally long grooves on both sides of its outer peripheral surface, and these cutouts 29a, 29b are formed in the case 23. By being fitted in the guide hole 30 formed in the side plate 23a, it is slidably held in the vertical direction and attached to the case 23. The guide hole 30 is opened at the lower end of the side plate 23a of the case 23, and the lower end opening is closed by a stopper plate 32 fixed to the surface of the side plate 23a by a set screw 31 to guide the guide hole 30 of the holder 28. We are trying to prevent it from falling off. A spring bearing 34 is provided above the guide hole 30 on the surface of the side plate 23a.
Is fixed by a set screw 35, and this spring bearing 34
The compression coil spring 26 is mounted on a guide rod 36 provided in the. The compression coil spring 26 has its upper end pressed against the lower surface of the spring receiver 34 and its lower end pressed against the upper surface of the holder 28, thereby biasing the holder 28 downward and pressing it against the upper surface of the stopper plate 32. . A side plate 39 is fixed to the inner end surface of the holder 28 by a set screw 40 and faces the side plate 23a with a minute gap (for example, 0.2 mm), so that the inner opening of the holder 28 and the guide hole 30 are formed.
Is closed. The side plate 39 is formed of rubber or the like into a rectangular shape, and the shaft end portion of the upper roller 25 is provided in the center hole 41.
25a is inserted. The center hole 41 is sealed by a rubber ring 43 as a seal member provided at the center of the side plate 39.

The lower end opening of the case 23 has a structure fitted in the upper end opening of the duct 20, and the cleaning liquid that has flowed into the gap between the side plate 23a and the side plate 39 flows into the duct 20. .

In FIG. 6, reference numeral 45 is a guide roller which is rotatably supported between the lower brush 21 and the lower roller 22 and guides the running of the hose 12. A motor shaft protrusion of the motor 19,
The shaft 46 of the lower brush 21 and the side plate of the duct 20 have bearings 46 (8th
Sprocket 47, 48 (Figs. 6 and 7) and sprocket 49 as a rotating body, which will be described in detail later, are respectively provided on the shaft end 22a side of the lower roller 22 which is rotatably supported by the shaft. The idler sprocket 50 is attached to both the left and right sides of the lower brush 21 and the housing outlet of the lower roller 22, and between the motor 19 and the lower brush 21 and the ducts, respectively.
20 side plates are rotatably and pivotally attached via studs (not shown). Further, the shaft end of the lower roller 22 is fitted and fixed to the hub 51 (FIG. 8) screwed to the side plate of the duct 20.
A sprocket 53 as a rotating body is rotatably supported by a bearing 54 on an idler shaft 52 that is planted in parallel with 22a. 56 is these sprockets 47, 48, 4
The chain is stretched around 9, 50 and 53, and the chain 56 is given a predetermined tension by a tension applying member 57 (FIG. 7). The tension applying member 57 is composed of a leaf spring and a slider fixed to the tip thereof, and is attached to the duct 20.

At the shaft end of the upper brush 24, the sprocket 58 (7th
Figure) is rotatably attached, and this sprocket 58 is a chain which is tensioned by the tension applying member 57 when the upper lid 5 is closed.
56 and the tension applying member 57 are configured to be completely meshed with each other against the spring force and to be rotationally driven. In addition, the upper lid 5
When is opened, the motor 19 is stopped by a micro switch (not shown) and the opening angle of the upper lid 5 is set by a stay damper (not shown) so that the sprocket 58 and the chain 56 are not disengaged from each other. ing.

The lower roller 22 is provided with a groove 22A having an appropriate depth as shown in FIG. 9 (a) or (b) on the peripheral surface thereof, and this groove 22A increases the pressure contact force with the upper roller 25. Prevents the roller from slipping due to the cleaning liquid.
A similar groove 25A is also formed on the peripheral surface of the upper roller 25 (Fig. 1).
Is engraved. A transmission gear 60 (Fig. 8) is key-fixed to the shaft end 22a of the lower roller 22 together with a stopper plate 61 screwed thereto. Also, the shaft end 22
Between the a and the sprocket 49, there is a well-known one-way clutch 62 that transmits rotation only in one direction.
2b are fixed to the shaft end 22a and the sprocket 49, respectively. Further, a sun gear 64 is integrally fitted and fixed to the sprocket 53 loosely mounted on the idler shaft 52, and an arm 65 is rotatably pivoted on the idler shaft 52 via a bearing 66. It is supported. 67 is a pin 70 via a bush 69 together with a stopper plate 68 and an arm 65.
Is a planetary gear that is rotatably pivotally attached to the free end of the, and meshes with the sun gear 64, and by rotating the arm 65, the planetary gear 67 meshes with and does not mesh with the transmission gear 60. Is configured to. As a result, the motor 19 rotates to rotate the sprocket 49 and the sun gear 64 on the idler shaft 52 with the planetary gear 67 and the transmission gear 60 disengaged.
And the rotation of the sprocket 49 is transmitted to the lower roller via the one-way clutch 62.
It is configured to be transmitted to 22. Also, arm 65
After turning the gear to engage the planetary gear 67 with the transmission gear 60,
When the motor 19 is rotated, the rotation transmitted from the motor 19 to the sun gear 64 is transmitted to the transmission gear 60 via the planet gear 67. At this time, the transmission gear is higher than the rotation speed of the sprocket 49 transmitted from the motor 19 side.
Since the rotation speed of 60 is faster, the lower roller 22 rotates at this higher speed, and the sprocket 49 idles.

In FIG. 7, reference numeral 72 denotes a compression coil spring stretched between the operation lever 73 and the side plate of the duct 20.
73 is inserted into a long hole (not shown) formed in a guide plate 74 fixed to the side plate of the duct 20, and is normally held at the position shown by the chain line by being pressed against the upper end of the long hole.

On both sides of the upper end of the lower brush 21, a nozzle pipe 77 having a U-shape in plan view having a water supply port 76 and a large number of nozzle holes 77a is supported, and is configured to spray cleaning water onto the hose 12 from above and below. ing. 78 (Fig. 7) is a drainage port, and 79
(FIG. 4) is a push button switch for stopping the rotation of the motor 19.

Above the guide roller 14, an automatic stop device 80 (FIG. 10) for automatically stopping the rotation of the motor 19 at the end of the cleaning work.
Is provided. That is, above the guide roller 14, a pair of L-shaped arms 81 are pivotally attached to the right plate side of the upper lid 5 by a pin 82 so that the arms 81 have free ends. A stop roller 83 is rotatably supported by the section. Reference numeral 84 denotes a micro switch fixed to the upper lid 5 side with its contact point facing the free end of the arm 81, which is electrically connected to the motor 19, and the arm 81 is always moved by the weight of the stop roller 83 to the first position. The contact is pushed by the free end of the motor 19 by rotating it clockwise in FIG. 10 so that the motor 19 can be rotated. Further, when the connector fitting at the end of the hose passes between the stop roller 83 and the guide roller 14, the arm 81 rotates counterclockwise in FIG. 10 and the free end of the arm 81 separates from the contact of the micro switch 84. The motor 19 is configured to stop. 85 is provided on the free end side of the arm 81 and is a side plate of the case 23 in the upper lid 5.
The stopper is a stopper that restricts the counterclockwise rotation limit of the arm 81 by coming into contact with 23a. The operation of the hose cleaning device configured as described above will be described. First, when the hose 12 is extremely dirty and it is desired to slow down its feeding speed, the operation lever 73 (Figs. 6 and 7) is rotated to move the arm 65.
To the position shown in FIG. 8 to rotate the planetary gear 67 and the transmission gear.
Disengage with 60. When performing the cleaning work, the hose storage box 8 is rotated from the storage state shown by the chain line in FIG. 4 to the position shown by the solid line to land the legs 9, and then the hose 12
Pass the winding end of this hose 12 between the stop roller 83 and the guide roller 14 by holding the connector fitting on the start end side, and guide it to the base 16 via the guide roller 14, the lower brush 21, the guide roller 45, and the lower roller 22. , The connector fitting at the tip is hung from the base 16. Then, when the upper lid 5 is closed, the upper brush 24 and the lower brush 21 come into contact with each other via the hose 12 with their bristles interlocked with each other, and the upper roller 25 is pressed against the lower roller 22 by the compression coil spring 26. Further, the sprocket 58 is pressed against the chain 56 between the idler sprockets 50 and completely meshes.

After preparing in this way, press the push button switch 79 to
When the motor 19 is started, the rotation of the motor 19 is transmitted to the sprocket 49 and the sun gear 64 on the idler shaft 52, so that the rotation of the sprocket 49 is lowered through the one-way clutch 62 while the planetary gear 67 is spinning. While being transmitted to the roller 22 at a relatively low speed, the upper roller 25 pressed against the lower roller 22 by the compression coil spring 26 by the chain 56 also rotates.
Therefore, the rotation of the upper and lower rollers 25, 22 causes the hose 12
Is pulled out, and the hose winding body 11 rotates while sliding on the hose receiving roller 10. The drawn hose 12 is washed with the rotating upper and lower brushes 24 and 21 and the washing water sprayed from the nozzle pipe 77, and is discharged through the stand 16. Although a part of the cleaning liquid for cleaning the hose 12 enters the case 23 of the upper lid 5, since the guide hole 30 of the case 23 is sealed by the side plate 39, the cleaning liquid should not leak to the outside of the case from this guide hole 30. The sprocket 49, 50, 58, chain 56, etc. will not get wet.

While the hose 12 is being conveyed, the arm 81 of the automatic stop device 80 is rotated by its own weight of the stop roller 83 and presses the contact point of the micro switch 84 at its free end, so that the motor 19 can be rotated. I have to. At this time, the arm 81 stops
Since the rotation limit is regulated by 85, the contacts of the micro switch 84 will not be pushed too much. Stop roller
When the connector fitting at the end of the hose passes between the 83 and the guide roller 14, the arm 81 rotates counterclockwise in FIG. 10 and its free end separates from the contact of the micro switch 84.
The motor 19 stops. In this case, even if the arm 83 suddenly rotates, the free end of the arm 83 is in the direction away from the contact of the micro switch 84, and therefore the micro switch 84 is not damaged. When the motor 19 is stopped, the upper lid 5 is opened and the remaining portion of the hose 12 is pulled out of the machine to complete the cleaning work. After cleaning, close the top cover 5 and then the hose storage box 8
Is rotated to be housed in the main body 2 as shown by a chain line in FIG. 4, and the base 16 is folded.

Next, if the hose 12 is not very dirty and it is desired to transport and wash it at a high speed, the arm 65 is rotated by operating the rotation lever 73, and the planet gear 67 is meshed with the transmission gear 60. When the motor 19 is driven, its rotation is the sun gear 64.
-Transmitted to the transmission gear 60 via the planet gear 67. At this time,
Since the rotation speed of the transmission gear 60 is higher than the rotation speed of the sprocket 49 transmitted from the motor 19 side, the lower roller 22 rotates at this high speed, and the sprocket 49 idles. That is, the hose 12 can be washed while being transported at a high speed.

[Advantages of the Invention] As described above, in the hose cleaning device according to the present invention, the holder is attached to the shaft end of the upper roller arranged in the case of the upper lid through the bearing, and the holder is provided in the case. A guide hole is movably held up and down by a hole, and the case is urged downward by a compression coil spring to press the upper roller against the lower roller and the guide hole is sealed by a side plate. The bearing on the roller shaft, the sprocket, the gear, the chain, the motor, etc. on the roller shaft are protected from the cleaning liquid without flowing out of the case, and the durability thereof can be improved.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view of a main part of a hose cleaning device according to the present invention, FIG. 2 is a view taken in the direction of arrow A in FIG. 1, and FIG.
-III sectional view, FIG. 4 is a front view of the apparatus, FIG. 5 is a side view of the apparatus, FIG. 6 is a plan view showing the apparatus without the upper lid and upper roller, and FIG. 7 is a brush. FIG. 8 is a schematic sectional view of the power transmission path of the roller and the automatic stop device, FIG. 8 is a developed sectional view of a main part of the transmission, and FIGS. FIG. 10 is a front view of the upper and lower rollers provided, and FIG. 10 is a sectional view of the automatic stop device. 1 ... Hose cleaning device, 3 ... Casing, 5 ... Top lid, 12 ...
… Hose, 20 …… duct, 21 …… lower brush, 22 …… lower roller, 23 …… case, 24 …… upper brush, 25 …… upper roller, 26 …… compression coil spring, 27 …… bearing, 28 ......
Holder, 29a, 29b ...... Notch, 30 ...... Guide hole, 32 ...... Stopper plate, 34 ...... Spring holder, 39 ...... Side plate, 49, 50, 58, 50 ...... Sprocket, 56 ...... Chain, 57 …… Tensioning member, 58 …… Sprocket.

Claims (1)

[Scope of utility model registration request] 1. A lower roller rotatably supported by an upper end opening of a duct in a housing and a lower roller of a case in an upper lid rotatably supported by an opening edge of the housing. An upper roller that is freely supported and press-contacted to the lower roller;
A holder that is fitted to the shaft end of the upper roller via a bearing, and both ends of the outer peripheral surface are fitted into guide holes provided in the case, and is held so as to be slidable in the vertical direction. A side plate fixed to the end face to close the guide hole, and a compression coil spring arranged between the case side spring receiver and the holder are provided, and the upper roller is closed by the compression coil spring by closing the upper lid. A hose cleaning device characterized in that it is pressed against the lower roller.