EP2884017B1 - Device for guiding a suction hose and at least one flushing hose - Google Patents

Description

The present invention relates to a sewer cleaning vehicle having the features of the preamble of claim 1.

The US 4,669,145 discloses a sewer cleaning vehicle in which a suction hose is passed over a rotatable boom. Furthermore, a flushing hose can be wound on a reel which is positioned between the driver's cab and a container. The flushing hose is also guided over the boom, wherein a first pair of rollers on the boom and a second pair of rollers are provided on a stationary holder next to the reel for guiding the flushing hose. Upon rotation of the boom, the hose is passed between the two pairs of rollers.

From the EP 2 458 099 A1 a sewer cleaning vehicle having the features of the preamble of claim 1 is known in which a reservoir of a suction hose is arranged on a container. The suction hose is guided at the back of the container via a pivotable arm, wherein in addition a flushing hose is held on the boom.

The DE 20 2008 013 050 discloses a sewer cleaning vehicle with a hose reel for a high-pressure hose and a hose supply of a suction hose, which are jointly guided over a pivotable arm. The boom is pivotable at the rear of the vehicle in an annular region of about 180 °.

The DE 29 06 405 A1 discloses a sewer cleaning vehicle in which on a container, a boom is pivotally mounted on which a suction hose and a flushing hose are guided. In addition, a reel for the flushing hose is mounted on the container.

The EP 1 050 634 discloses a sewer cleaning vehicle having a boom at the top of a container which is rotatably mounted about a vertical axis. About the boom a suction hose is guided to drain it into a manhole. The boom is also liftable about a horizontal axis. In this sewer cleaning vehicle is disadvantageous that the flushing hose, by means of which a rinsing liquid is introduced into the channel, separately mounted on a reel at the rear of the vehicle and must be manually inserted into a manhole.

To guide a flushing hose to a boom in a sewer cleaning vehicle beats the EP 683 278 to hang a rinse hose reel on the boom. As a result, both the suction hose and the flushing hose can be drained into a manhole shaft on the boom. However, hanging the rinse hose reel loads the bearing about a vertical axis of the boom by the weight forces. In addition, the reel takes a comparatively large amount of storage space at the end of the boom and represents a hazard.

The EP 698 696 discloses a sewer cleaning vehicle in which both a suction hose and a flushing hose are guided on a boom. For this purpose, corresponding guide rollers are provided on the boom, so that the suction hose and the flushing hose can be moved along the boom. The boom is pivotable about a vertical axis on both sides by about 60 ° and can be mounted both on the front and on the back of the vehicle. As a result, the working range of the boom is limited, and it may be necessary depending on the structural condition or the traffic situation that the sewer cleaning vehicle must maneuver consuming to approach a manhole. In addition, the length of the suction hose is limited due to the arrangement in a cassette compartment at the top of the vehicle.

It is therefore an object of the present invention to provide a sewer cleaning vehicle with a device for guiding a suction hose and at least one rinsing hose to a sewer cleaning vehicle, which allows a comfortable operation in a cleaning process. In addition, the boom should not be in the field of view of the driver in the transport position, but during a cleaning process, the insertion of the suction hose and the at least one rinsing hose should be observed from the driver's cab.

This object is achieved with a sewer cleaning vehicle having the features of claim 1.

According to the invention, both a suction hose and at least one rinsing hose are guided on the boom, wherein for the at least one rinsing hose, a guide device is provided with a section entering the guide device and a section leaving the guide device, and the boom with the suction hose and the rinsing hose is pivotable about at least 220 ° about the vertical axis.

As a result, the work area is significantly increased, since the boom can move the suction hose and the at least one flushing hose over the manhole shaft, and then introduce the suction hose and the flushing hose therein. This simplifies handling, since the operator of the sewer cleaning vehicle must make fewer shunting operations in poorly accessible manholes.

Preferably, the boom with the suction hose and the at least one rinsing hose by at least 360 °, pivoted. When pivoting by at least 360 °, the work area is arranged annularly around the sewer cleaning vehicle, so that each manhole can be approached via the boom. In particular, starting at the front of the vehicle adjacent to a driver's cab is also possible, so that insertion of the suction hose and the at least one rinsing hose from the driver's cab can be observed. This simplifies handling, since it is no longer necessary to get out of the vehicle during the cleaning process. Also, this can avoid the burden on the operator due to rising from the manhole shaft aerosols.

The bending radius of the flushing hose is in the region of the guide device preferably at least twice as large as its diameter, in particular at least four times as large. The bending radius of the flushing hose is in each rotational position of the boom so large that a kinking of the flushing hose is prevented. For a low-friction guidance of the flushing hose along the guide device, the minimum bending radius can also be more than eight times as large as the diameter of the flushing hose.

For a compact construction of the sewer cleaning vehicle, the reel for the flushing hose between a driver's cab and a container of the sewer cleaning vehicle can be arranged. The reel for the flushing hose can have a horizontal axis, but also an arrangement with inclined or vertical axis is possible. Alternatively, the reel for the flushing hose can also be arranged on a container lid at the rear of the vehicle.

According to a preferred embodiment, a Saugschlauchhaspel is provided for the suction hose, which is rotatable about a vertical axis. The vertical axis of the Saugschlauchhaspel and the vertical axis match the boom so that boom and Saugschlauchhaspel are rotatably mounted about the same axis. The boom and the Saugschlauchhaspel can be arranged one above the other at the top of a container of the sewer cleaning vehicle. The guide device for the flushing hose is preferably also arranged below or above the Saugschlauchhaspel, so that a compact design is obtained.

In order to be able to effectively convey the at least one flushing hose to the boom, a drive device for unwinding the flushing hose from the reel is provided at the outgoing section. The flushing hose can then be unwound by rotating the reel and assisted by the drive device. By turning the reel for the flushing hose in the opposite direction of the flushing hose is wound up again, the drive device can also support the feeding process. On the boom, a drive device for the suction hose can also be provided to assist the winding of the suction hose and the unwinding of the suction hose from the motor-driven reel for the suction hose.

According to a further embodiment of the invention, a reel is provided with a second flushing hose, wherein the second flushing hose is also guided on the boom. The user can thus decide whether the first flushing hose or the second flushing hose should be drained into a manhole. The second flushing hose preferably has a different inner diameter than the first flushing hose, so that depending on the diameter or size of the channel to be cleaned, the first or second flushing hose can be used, wherein the flushing hose with the smaller inner diameter promotes a lower flow rate, which is just for smaller channels may be sufficient. On the boom, a guide device can be provided for the second flushing hose in order to be able to pivot the boom with the second flushing hose by at least 180 °, in particular at least 360 °. The guiding device for the second flushing hose can be arranged above, below or also on the same level of the guiding device for the first flushing hose.

The guide device has an annular receptacle on which the flushing hose is wound around at least half a wrap. Then, the boom can be rotated, the incoming portion due to the stationary arrangement on the sewer cleaning vehicle remains in a predetermined angular position while the outgoing portion of the flushing hose is dependent on the angular position of the boom.

The boom is telescopically designed to have a large working area in the radial direction. Additionally or alternatively, the boom may be pivotable about a horizontal axis for raising or lowering one end of the boom to facilitate threading the suction hose and the at least one rinse hose.

Figur 1

eine Seitenansicht eines Kanalreinigungsfahrzeuges mit einer erfindungsgemäßen Vorrichtung zur Führung eines Saugschlauches und mindestens eines Spülschlauches;

Figur 2

eine perspektivische Ansicht des Kanalreinigungsfahrzeuges der Figur 1;

Figur 3

eine perspektivische Ansicht der Vorrichtung zur Führung eines Saugschlauches und mindestens eines Spülschlauches, insbesondere zweier Spülschläuche, ohne Fahrzeug;

Figur 4

eine Seitenansicht der Vorrichtung der Figur 3;

Figuren 5A bis 5D

mehrere Draufsichten auf das Kanalreinigungsfahrzeug der Figur 1 mit unterschiedlich angeordnetem Ausleger; und

Figuren 6A bis 6C

mehrere schematische Ansichten der Führungsvorrichtung für den Spülschlauch in einem ersten Ausführungsbeispiel.

The invention will be explained in more detail with reference to several embodiments with reference to the accompanying drawings. Show it:

FIG. 1

a side view of a sewer cleaning vehicle with a device according to the invention for guiding a suction hose and at least one rinsing hose;

FIG. 2

a perspective view of the sewer cleaning vehicle of Figure 1;

FIG. 3

a perspective view of the device for guiding a suction hose and at least one rinsing hose, in particular two rinsing hoses, without vehicle;

FIG. 4

a side view of the device of FIG. 3 ;

FIGS. 5A to 5D

several top views of the sewer cleaning vehicle the FIG. 1 with differently arranged boom; and

FIGS. 6A to 6C

several schematic views of the guide device for the flushing hose in a first embodiment.

A sewer cleaning vehicle 1 comprises a vehicle frame 2, on which a driver's cab 3 is provided. Behind the driver's cab 3, a container 4 for receiving sludge and fresh water is provided to perform a cleaning operation on a channel or a sludge pit can.

Between the driver's cab 3 and the container 4, a motor-driven reel 5 for a flushing hose 6 is arranged, which can be wound onto the reel 5 and unwound.

As in FIG. 2 can be seen, located behind the cab 3, a second motor-driven reel 7 for a second flushing hose 8, which can be wound on the reel 7 and unwound. The second flushing hose 8 has a different inner diameter than the first flushing hose 6, so that during a cleaning process, a different volume of fluid emerges from the first or second flushing hose. As a result, an adaptation of the flushing hose 6 or 8 can be made with regard to the size of the channel.

On the sewer cleaning vehicle 1, a Saugschlauchhaspel 9 is further arranged for a suction hose 10 above the container 4, which is rotatably mounted about a vertical axis and is driven by a motor to the suction hose 10 to stock up or to be able to unwind into the manhole.

At the top of the container 4, a boom 11 is rotatably mounted in the form of a bar, wherein the arm 11 is rotatable about the same vertical axis as the Saugschlauchhaspel 9. On the boom 11, both the suction hose 10 and the first and second flushing hose 6 and 8 are guided. The flushing hoses 6 and 8 are thereby conveyed via a respective drive device 12 and 13 at the end of the boom 11 and can be discharged from there into a manhole or pulled out. Adjacent to the drive devices 12 and 13, which each support the reel 5 and 7 during winding and unwinding, the suction hose 10 is guided, which can be retracted or extended via a drive device 14 on the boom 11. Again, the winding and unwinding of the suction hose 10 is supported on or from the motor-driven reel 9 by the drive device 14.

The boom 11 is mounted pivotably through 360 ° and can therefore be moved with the front end in an annular manner around the sewer cleaning vehicle 1. The boom 11 can be rotated by a drive having, for example, a gear and a turntable in the region of the axis of rotation of the boom 11. Other drives are possible.

To guide the suction hose 10 may be provided on the boom 11 a plurality of guide rollers, in particular a guide roller 15 in the region of the curvature of the suction hose 10 is provided to guide the suction hose 10 from a horizontal portion in a vertical portion 16. The flushing hoses 6 and 8 can also be moved on the arm 11 via guide rollers and other guide elements along a predetermined guide track.

In the Figures 3 and 4 the device for guiding the suction hose 10 is shown, which is moved in the region of the drive device 14 between drive rollers. The flushing hose 6 is guided to the drive device 12, optionally the second flushing hose 8 is guided to the drive device 13 or remains on the reel 7 and is used only when needed. Preferably, however, both rinsing hoses 6 and 8 are arranged ready for use on the boom 11.

It is of course possible to operate the sewer cleaning vehicle 1 only with a single flushing hose 6 and to dispense with the second flushing hose 8 and the reel 7. In addition, if required, more than two flushing hoses 6 and 8 can be used on the sewer cleaning vehicle 1.

In FIG. 4 the vertical axis 18 for the boom 11 and the Saugschlauchhaspel 9 is located. To the vertical axis 18, a guide device 20 is provided for the flushing hose 8, which has an entering into the guide device 20 section 8 'and an expiring from the guide device 20 section. For the second flushing hose 6, a second guide device 20 may be provided on the boom 11.

In the FIGS. 5A to 5D the sewer cleaning vehicle 1 is shown in plan views, in which the boom 11 is arranged in different angular positions. In FIG. 5A is the boom 11 in the transport position, in which one end of the boom 11 is positioned on the back of the sewer cleaning vehicle 1. For a cleaning process, the boom 11 are pivoted about the vertical axis 18 to approach a manhole on the right or left side, as shown in the FIGS. 5B and 5C is shown. Further, it is possible to pivot the boom 11 from the transport position by about 180 °, as in FIG. 5D is shown. Then there is an end of the boom 11 with the vertical portion 16 of the suction hose 10 and one end of the first flushing hose 6 or optionally one end of the second flushing hose 8 in front of the cab 3 and can be discharged from there into a manhole.

The boom 11 is telescopically formed and comprises at least one movable member 17 in the longitudinal direction of the boom 17, to which the vertical portion 16 of the suction hose 10 and one end of the flushing hose 6 and / or one end of the flushing hose 8 are guided.

In the FIGS. 6A to 6C the guide device 20 is shown schematically. The guide device 20 comprises a holder with an annular receptacle, not shown, for the flushing hose 6 above or below the suction hose reel 9, which is indicated only schematically by the reference numeral 22. The flushing hose 6 is wound on the annular receptacle by about half to a maximum of one and a half wraps, so that the arm 11 can be selectively pivoted in both directions, as shown in FIGS Figures 6B and 6C is shown. If the boom 11 is pivoted counterclockwise, the flushing hose 6 is further wound on the annular receptacle, while in a clockwise pivoting the winding is reduced. In this case, the incoming portion 6 'of the flushing hose remains stationary, since the reel 5 is indeed rotatable, but is stationary mounted on the sewer cleaning vehicle 1. The expiring portion of the flushing hose 6, however, is moved together with the boom 11 and is held there via guide elements.

If a second flushing hose 8 is to be guided in the guide device 20, this can be arranged above, below or at the same level of the first flushing hose 6, wherein a further annular receptacle is provided to receive the second flushing hose 8 with a winding. On the annular receptacles or guide rollers may be provided to ensure a smooth movement of the flushing hoses 6 and / or 8.

In the illustrated embodiment, only one guide device 20 for the first flushing hose 6 is described in each case. It is of course possible to operate the sewer cleaning vehicle 1 with only one flushing hose and a reel 5. Furthermore, it is possible to provide a second flushing hose with the reel 7, wherein the guide devices 20 can be used for the second flushing hose 8. If two guide devices 20 are provided on the boom 11, these can be provided one above the other, so that two ends of flushing hoses 6 and 8 can already be arranged on the drive devices 12 and 13, which are then optionally discharged into the manhole shaft. In the case of two guide devices 20, these can also be arranged at the same level in the form of an outer and an inner annular guide device.

About the rinsing hoses 6 and 8, a cleaning fluid, in particular rinse water, are injected at high pressure into a channel to solve there impurities, which are then sucked through the suction hose 10 into the container 4. The movement of the suction hose 10 and the flushing hoses 6 and 8 can be automated by a controller or manually by an operator.

LIST OF REFERENCE NUMBERS

• 1 sewer cleaning vehicle
• 2 vehicle frame
• 3 driver's cab
• 4 containers
• 5 reel for the first flushing hose
• 6 rinsing hose
• 6 'section of the flushing hose
• 7 reel for the second flushing hose
• 8 rinsing hose
• 8 'section of the flushing hose
• 9 suction hose reel
• 10 suction hose
• 11 outriggers
• 12 drive device
• 13 drive device
• 14 drive device
• 15 leadership role
• 16 vertical section of the suction hose
• 17 movable component of the boom
• 18 vertical axis
• 20 guide device
• 22 Implied suction hose reel

Claims (14)

1. Sewer-cleaning vehicle comprising a driver's cab (3), a suction hose (10), at least one flushing hose (6), and a device for guiding the suction hose (10) and the at least one flushing hose (6) on the sewer-cleaning vehicle (1), said device comprising a telescopable boom (11) which is mounted such as to be able to rotate about a vertical axis (18) and on which the suction hose (10) and the flushing hose (6) are guided, and a reel (5) mounted separately from the boom (11) for storing a portion of the flushing hose (6), wherein the boom (11) is provided with a guide device (20) for the flushing hose (6) between the reel (5) and an end of the boom (11), and the flushing hose (6) has a section running into the guide device (20) and a section running out from the guide device (20), wherein the guide device (20) has a ring-shaped holder, onto which the flushing hose (6, 8) is wound by at least half a loop, characterized in that the boom (11) with the suction hose (10) and the flushing hose (6) can be swivelled through at least 220° about the vertical axis (18), wherein it is possible to swivel the boom (11) out of a transport position, in which the end of the boom (11) is positioned at the rear of the sewer-cleaning vehicle, through approximately 180°, so that the end of the boom (11) is located with a vertical section (16) of the suction hose (10) and an end of the flushing hose (6) in front of the driver's cab (3) and from there can be lowered into a sewer shaft.
2. Sewer-cleaning vehicle according to claim 1, characterized in that the boom (11) with the suction hose (10) and the flushing hose (6) can be swivelled through at least 360°.
3. Sewer-cleaning vehicle according to claim 1 or 2, characterized in that, in any rotary position of the boom (11), the bending radius of the flushing hose (6) on the guide device (20) is at least twice as large as the diameter thereof, in particular more than four times as large.
4. Sewer-cleaning vehicle according to one of the preceding claims, characterized in that the reel (5) for the flushing hose (6) is rotatable independently of the boom (11) and is arranged optionally between a driver's cab (3) and a tank (4) of the sewer-cleaning vehicle (1) or on a tank cover at the rear of the sewer-cleaning vehicle (1).
5. Sewer-cleaning vehicle according to one of the preceding claims, characterized in that a suction hose reel (9) is provided for the suction hose (10), said suction hose reel being rotatable about a vertical axis (18).
6. Sewer-cleaning vehicle according to claim 5, characterized in that the vertical axis (18) of the suction hose reel (9) and the vertical axis (18) of the boom (11) coincide.
7. Sewer-cleaning vehicle according to claim 5 or 6, characterized in that the guide device (20) for the flushing hose (6) is arranged below or above the suction hose reel (9).
8. Sewer-cleaning vehicle according to one of the preceding claims, characterized in that a drive device (12) for aiding the unreeling or reeling of the flushing hose (6) is provided on the boom (11) at the outgoing section of the flushing hose (6).
9. Sewer-cleaning vehicle according to one of the preceding claims, characterized in that a drive device (14) for aiding the unreeling or reeling of the suction hose (10) is provided on the boom (11).
10. Sewer-cleaning vehicle according to one of the preceding claims, characterized in that a reel (7) having a second flushing hose (8) is provided and the second flushing hose (8) is guided on the boom (11).
11. Sewer-cleaning vehicle according to claim 10, characterized in that the second flushing hose (8) has a different internal diameter than the first flushing hose (6).
12. Sewer-cleaning vehicle according to claim 10 or 11, characterized in that a guide device (20) is provided on the boom (11) for the second flushing hose (8) in order to be able to swivel the boom with the second flushing hose (8) through at least 180°, in particular at least 220°.
13. Sewer-cleaning vehicle according to one of the preceding claims, characterized in that the boom (11) can swivel about a horizontal axis in order to raise or lower one end of the boom (11).
14. Sewer-cleaning vehicle according to one of the preceding claims, characterized in that the flushing hose (6) is wound onto the ring-shaped holder by half a loop to at most one and a half loops.

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