EP4269712A1 - Machine de nettoyage de tuyaux et de canalisations - Google Patents

Machine de nettoyage de tuyaux et de canalisations Download PDF

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Publication number
EP4269712A1
EP4269712A1 EP23170516.1A EP23170516A EP4269712A1 EP 4269712 A1 EP4269712 A1 EP 4269712A1 EP 23170516 A EP23170516 A EP 23170516A EP 4269712 A1 EP4269712 A1 EP 4269712A1
Authority
EP
European Patent Office
Prior art keywords
pipe
electric motor
cleaning machine
storage device
sewer cleaning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP23170516.1A
Other languages
German (de)
English (en)
Inventor
Manfred Lehmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lehmann GmbH and Co KG
Original Assignee
Lehmann GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lehmann GmbH and Co KG filed Critical Lehmann GmbH and Co KG
Publication of EP4269712A1 publication Critical patent/EP4269712A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
    • E03F9/002—Cleaning sewer pipes by mechanical means
    • E03F9/005—Apparatus for simultaneously pushing and rotating a cleaning device carried by the leading end of a cable or an assembly of rods

Definitions

  • the invention relates to a pipe and sewer cleaning machine with a housing and with an electric drive arrangement arranged in the housing, wherein when the pipe and sewer cleaning machine is used as intended, a cleaning device can be fixed to a connection system fixed to the housing, the connection system being driven by an electric motor Electric drive arrangement can be set in a rotary movement, the electric drive arrangement having a power storage device, the electric motor being supplied with power using the power storage device and thereby being driven.
  • a pipe and sewer cleaning machine designed in this way usually has a housing with a drive arrangement arranged in the housing and a connection system.
  • the connection system is set up to attach a cleaning device to the housing.
  • a cleaning device is usually a cleaning spiral several meters long, which is inserted into the pipe section when the pipe and sewer cleaning machine is used as intended and can mechanically remove dirt there.
  • the cleaning spiral can be passed through the housing of the pipe and sewer cleaning machine, whereby the cleaning device can be clamped through the connection system and secured to it by operating a hand lever.
  • the connection system can be set into a rotational movement by an electric motor of the electric drive arrangement, whereby the cleaning device fixed to the connection system can also be set in rotation.
  • a whole series of powerful variants and embodiments of pipe and sewer cleaning machines are known, whereby the electric motor arranged in the housing for driving the cleaning spiral can be driven by a power storage device, for example in the form of an accumulator.
  • a power storage device for example in the form of an accumulator.
  • Such a design with a battery offers the advantage over network-connected variants of pipe and sewer cleaning machines that the pipe and sewer cleaning machine can be used as self-sufficiently as possible during manual operation, and no planning is made with regard to an available power connection Need to become.
  • this wireless design offers the advantage that, due to the lack of a power connection, there is no danger to the user from a potentially damaged cable and the risk of tripping is also eliminated.
  • Variants are also known from the prior art in which the accumulator can be removed from the housing after a predetermined working time at a low charge level and replaced with a battery or another accumulator.
  • high-performance variants of batteries and accumulators are known in these exemplary embodiments and are widely used, it can also be disadvantageous to interrupt work in order to carry out a charging process or to replace a battery or the accumulator.
  • the object of the present invention is therefore to provide a pipe and sewer cleaning machine that has both a power storage device and a network connection with which the pipe and sewer cleaning machine can be operated.
  • the electric drive arrangement has a switching arrangement, the switching arrangement being electrically conductively connectable to a power connection arranged on the housing and to the power storage device, and the switching arrangement being connected to the electric motor, the electrical connection between the switching arrangement and the energy storage device are separated is when the power connection is connected as intended to an external power source, so that the electric motor can be supplied with power by the external power source and can therefore be driven, and wherein the electrical connection between the switching arrangement and the energy storage device is closed when the power connection is not connected to the external power source connected is.
  • Such a design of the pipe and sewer cleaning machine offers the advantage that the pipe and sewer cleaning machine can be operated independently with the power storage device and once via the power connection - connected to an external power source. This means that the energy supply to the electric motor can be determined and optimally carried out depending on the existing circumstances and the task at hand.
  • the pipe and sewer cleaning machine is set up in such a way that when an external power source is connected to the power connection, the electric motor is operated exclusively via the external power source. If the power connection is not connected to an external power source, the energy for the electric motor will be provided via the power storage device.
  • the power storage device can be an accumulator or a battery.
  • the power storage device is designed as an accumulator, which enables the power storage device to be charged repeatedly.
  • the accumulator is particularly advantageously designed in such a way that it can be inserted into the housing and, if necessary, removed from the housing for charging or replacement.
  • the power storage device can be arranged in a power storage device shaft arranged on the housing.
  • the power storage device shaft can be designed so that the user can remove the power storage device manually, the power storage device shaft optionally being closable by a cover in order to reduce the ingress of moisture or dirt.
  • the accumulator itself can be a battery known from the prior art, and in particular a high-performance battery based on the migration of lithium ions, for example in the form of a lithium-ion battery, a lithium polymer, a lithium manganese battery. , or a lithium iron phosphate battery.
  • the pipe and sewer cleaning machine can have a switching arrangement which can be connected to the power connection and the power storage device. Furthermore, the switching arrangement is connected to the electric motor itself. The switching arrangement is set up to switch and manage the individual available energy sources of the electric motor. The switching arrangement preferably detects if an external power source is connected to the pipe and sewer cleaning machine via the power connection. The electrical connection between the switching arrangement and the power storage device is separated, so that the electric motor is supplied with power exclusively via the power connection and thus the external power source. The switching arrangement detects that no external power source is connected is, the energy supply to the electric motor is carried out exclusively via the power storage device.
  • the power connection of the pipe and sewer cleaning machine can be arranged on a housing surface. Furthermore, the power connection can be designed so that it is suitable for all common national and/or international power connections and power plugs. In addition, if no external power source is connected, the power connector may be provided with a sealing cover that can prevent dirt or other contaminants from entering the power connector.
  • the switching arrangement has at least one relay, wherein the at least one relay is actuated by an electrical connection of the power connection to the external power source, so that the electrical connection between the power storage device is established via the actuation of the at least one relay and the switching arrangement can be separated.
  • the design with at least one relay offers the advantage that the connection between the power storage device and the switching arrangement can be separated in a simple and cost-effective manner as soon as the power connection is connected to the external power source.
  • the switching arrangement preferably has two relays which can effect the switching, ie the connection or disconnection of the connection between the power connection and the power storage device.
  • a conceivable design option also includes an embodiment variant in which the electric drive device has a charging switching arrangement, wherein the power storage device, when the power connection is connected to the external power source as intended, can be charged by the external power source in a charging process when the electric motor is not in operation, and where the charging process is interrupted when the electric motor is in operation.
  • the design of the electric drive device in a charging switch arrangement offers the advantage that the power storage device can be charged with a connected external power source if the electric motor itself is not in operation. This further offers the advantage that the power storage device does not have to be removed or replaced for charging or replacement, but can be charged while it is arranged in the housing in the power storage device shaft. This offers optimal handling of the pipe and sewer cleaning machine.
  • the charging switching arrangement detects whether an external power source is connected and can continue to monitor the current status of the electric motor. If the two conditions are present: an external power source is connected and the electric motor is not in operation, the charging switching arrangement can release a charging current from the external power source to the power storage device so that it is charged during the charging process. If the electric motor is put into operation by the user during the charging process, the charging switching arrangement interrupts the flow to charge the power storage device Charging current, so that the electric motor of the pipe and sewer cleaning machine is powered exclusively from the external power source.
  • the electric drive device prefferably has a safety device, with the help of the safety device being able to interrupt an electrical supply to the electric motor via the power storage device and/or the external power source.
  • the safety device is designed in such a way that it can interrupt the electrical supply to the electric motor if problems or dangers arise.
  • the safety device is designed so that it can interrupt the electrical supply to the electric motor via the power storage device and the external power source. It can thus be achieved that the electric motor is not put into operation in the event of a malfunction or that the operation of the electric motor can be interrupted if malfunctions occur during operation.
  • the safety device disconnects the electrical supply to the electric motor if the electric motor is not in operation for a predetermined period of time. This makes it possible to ensure that if the electric motor is not in operation or is not in operation for a predetermined period of time, the electrical supply to the safety motor is switched off so that, on the one hand, no electrical problems can occur and, on the other hand, if the electric motor is started up unintentionally Electric motor cannot cause injury or other impairment to the user.
  • the safety device has a safety switch arranged on the housing.
  • the safety switch can be arranged on the housing in such a way that it can interrupt the electrical supply to the electric motor when actuated.
  • the safety switch can be designed, for example, as an electronic switch.
  • the safety switch can preferably have at least two switching positions, which in a first switching state "On” enable the electric motor to be supplied with energy via the power storage device or the power connection and a second switching state "Off", in which the supply of the electric motor via the power storage device and the power connection is prevented can be.
  • the pipe and sewer cleaning machine can only be operated, i.e. the electric motor can be started, when the safety switch is in the “on” switching state.
  • the pipe and sewer cleaning machine cannot be operated in the “Off” switching state.
  • the safety switch serves, in addition to a possibly further device such as another switch, to ensure that the pipe and sewer cleaning machine cannot be started unintentionally.
  • the safety switch is therefore preferably arranged on the housing at a distance from other safety devices, so that unintentional actuation can be ruled out.
  • the safety switch is a mechanical switch, wherein the electrical connection between the power storage device or the external power source and the electric motor can be separated or closed via manual actuation of the mechanical switch.
  • Designing the safety switch as a mechanical switch offers the advantage that the switching states of the switch are precisely defined, and furthermore, since a resistance must be overcome when switching from the first switching state to the second switching state, unintentional switching of the mechanical switch is hardly possible is.
  • the mechanical switch is preferably designed so that it is arranged either in the electrical connection between the power connection and the switching arrangement or in the electrical connection between the power storage device and the switching arrangement. Furthermore, the mechanical switch can also be arranged in the electrical connection between the switching arrangement and the electric motor.
  • the safety switch is arranged in a housing recess in order to prevent unintentional confirmation of the safety switch.
  • the arrangement in the Recess makes it possible for the safety switch not to be actuated unintentionally, for example by accidentally brushing past the safety switch.
  • the safety switch can be arranged in a recess in the housing, or the safety switch can be arranged on an outside of the housing, which is surrounded by a wall formed on the housing in such a way that unintentional actuation of the safety switch can be avoided.
  • the safety switch can also have a removable or foldable cover, whereby the cover must be deliberately removed before the safety switch is actuated. What all of these variants have in common is that the user can prevent the electric motor from being unintentionally started and put into operation.
  • an operating device is arranged on the housing, wherein the electric motor can be operated by the operating device.
  • the operating device can preferably be arranged on a side of the housing that faces the user when the pipe and sewer cleaning machine is used as intended, so that this user can operate the pipe and sewer cleaning machine using the operating device.
  • this operating device is preferably arranged at a distance from the safety switch so that both cannot be operated and actuated unintentionally at the same time.
  • the operating device can be part of a fuse for the pipe and sewer cleaning machine, so that the safety switch is first switched to the switching state must be switched “on” before the pipe and sewer cleaning machine can be started using the operating device. This improves safety when operating the pipe and sewer cleaning machine.
  • important parameters of the pipe and sewer cleaning machine can be controlled via the operating device. This includes, for example, the engine speed, the feed speed of the cleaning device through the pipe section, and other parameters.
  • the operating device can have an input and display system.
  • the operating device can also have a display system in addition to switches and buttons such as membrane buttons for entering and confirming various commands.
  • the display system can, for example, display the currently entered parameters as well as, if necessary, warnings and other status messages, thus making them accessible to the user.
  • the input and display system can be arranged in such a way that it can be constantly seen and read by the user of the pipe and sewer cleaning machine during work.
  • the input and display system can also have an acoustic output.
  • one or more loudspeakers can be designed on the input and display system.
  • the input and display system can also have a touch-sensitive display such as a touch panel, which has a enables easy and comfortable operation of the pipe and sewer cleaning machine. Since the pipe and sewer cleaning machine is usually used in an environment that presents hygienic and dirt-related challenges, a touch-sensitive display or touch panel can also help ensure that any dirt cannot damage any switches or buttons that may be arranged on the operating device.
  • a touch-sensitive display or touch panel can also help ensure that any dirt cannot damage any switches or buttons that may be arranged on the operating device.
  • the input and display system can be arranged on the housing at a distance from the safety switch.
  • the spaced arrangement of the input and display system from the safety switch offers a convenient way to increase the safety of the pipe and sewer cleaning machine by consciously first switching the safety switch to the "on" switching state to operate the pipe and sewer cleaning machine Only then can the pipe and sewer cleaning machine be started using the operating device.
  • FIG. 1 an embodiment variant of the pipe and sewer cleaning machine 1 according to the invention is shown in a perspective view.
  • the pipe and sewer cleaning machine 1 has a housing 2 with an electrical drive arrangement 3 arranged in the housing 2.
  • a connection system 4 is arranged on the housing 2, which can be connected to a cleaning device (not shown in the figure) when the pipe and sewer cleaning machine 1 is used as intended.
  • the connection system 4, as well as the cleaning device that may be attached to it, can be set in a rotary movement and thus in rotation by an electric motor 5 of the drive arrangement 3.
  • the drive arrangement 3 also has a switching arrangement 6, which is electrically connected to the electric motor 5.
  • the switching arrangement 6 is set up to enable either an electrical supply of the electric motor 5 via a power storage device 7 or, in the case of an external power source connected via a power connection 8, via the external power source with power.
  • the switching arrangement 3 can be connected on the one hand to the power storage device 7 and on the other hand to the external power source. With a connected External power source, the electrical connection between the power storage device 7 and the switching arrangement 6 is separated, so that the electric motor 5 is supplied with power exclusively via the external power source and can be driven via it.
  • the electrical connection between the switching arrangement 6 and the power storage device 7, however, is closed when the power connection 8 is not connected to the external energy source.
  • FIG. 2 and 3 A schematic switching arrangement is shown in each case, when the electric motor 5 is operated via the energy storage device 7 and when operated via the external power source 9. If the external power source 9 is not connected, the electrical connection 10 between the switching arrangement and the power storage device 7 is closed, so that the electric motor 5 can be supplied with electricity and driven via the power storage device 7. If the external power source 9 is connected via the power connection 8, the electrical connection 10 is separated, while the electrical connection 11 between the power connection and the switching arrangement 6 is closed. In this case, the electric motor 5 can be supplied and driven via the external power source 9.
  • the pipe and sewer cleaning machine 1 also has a charging switching arrangement 12, which makes it possible to charge the power storage device 7, designed as an accumulator 13, in a charging process when an external power source 9 is connected and when the electric motor 5 is not in operation.
  • the charging switching arrangement 12 is set up to detect whether an external power source 9 is connected and whether the electric motor 5 is in operation or not.
  • a handle 14 and a control panel 15 are arranged on the housing of the pipe and sewer cleaning machine 1.
  • the control panel 15 itself has an input and display system 16 for operating the pipe and sewer cleaning machine, the input and display system having several membrane buttons.
  • a safety device 17 in the form of a safety switch 18 is arranged on an outside of the housing 2.
  • This safety switch 18 has two switching states. In the “Off” switching state, the electrical connections 10, 11 of the power storage device 7 and the power connection 8 to the electric motor 5 are interrupted, so that the latter cannot be put into operation. In the second switching state “On”, an electrical connection 10, 11 of either the power storage device 7 to the electric motor 5 or the power connection 8 to the electric motor 5 is closed, so that the electric motor 5 can be put into operation.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Cleaning In General (AREA)
EP23170516.1A 2022-04-28 2023-04-28 Machine de nettoyage de tuyaux et de canalisations Withdrawn EP4269712A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022110295.5A DE102022110295A1 (de) 2022-04-28 2022-04-28 Rohr- und Kanalreinigungsmaschine

Publications (1)

Publication Number Publication Date
EP4269712A1 true EP4269712A1 (fr) 2023-11-01

Family

ID=86282324

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23170516.1A Withdrawn EP4269712A1 (fr) 2022-04-28 2023-04-28 Machine de nettoyage de tuyaux et de canalisations

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EP (1) EP4269712A1 (fr)
DE (1) DE102022110295A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2268421B1 (fr) * 2008-04-09 2014-08-27 Alfred Kärcher GmbH & Co. KG Appareil de nettoyage haute pression
US8931131B1 (en) * 2010-05-17 2015-01-13 Daniel Feduke Power snake apparatus
US20180147713A1 (en) * 2016-11-30 2018-05-31 Ridge Tool Company Hybrid power tools
EP3418482A1 (fr) * 2017-06-21 2018-12-26 GEZE GmbH Entraînement de porte électrique et porte de sécurité
US20200048885A1 (en) * 2018-08-10 2020-02-13 Milwaukee Electric Tool Corporation Drain cleaning machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2268421B1 (fr) * 2008-04-09 2014-08-27 Alfred Kärcher GmbH & Co. KG Appareil de nettoyage haute pression
US8931131B1 (en) * 2010-05-17 2015-01-13 Daniel Feduke Power snake apparatus
US20180147713A1 (en) * 2016-11-30 2018-05-31 Ridge Tool Company Hybrid power tools
EP3418482A1 (fr) * 2017-06-21 2018-12-26 GEZE GmbH Entraînement de porte électrique et porte de sécurité
US20200048885A1 (en) * 2018-08-10 2020-02-13 Milwaukee Electric Tool Corporation Drain cleaning machine

Also Published As

Publication number Publication date
DE102022110295A1 (de) 2023-11-02

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