Pressure washer filter device and portable cleaning device

Abstract

The invention is based on a pressure washer filter device (10a - 10f), in particular a pressure washer liquid filter, for a, in particular portable, cleaning device (12a), preferably for a low-pressure cleaner, with a base body (14a - 14f) which has a circumferential wall (16a - 16f), wherein the circumferential wall (16a - 16f) has at least one filter recess (18a - 18f) for the filtered passage of a liquid. It is proposed that the pressure washer filter device (10a - 10f) has a mounting unit (20a - 20f) with at least one mounting handle element (24a - 24c) arranged on a front end (22a - 22f) of the base body (14a - 14f) and, in particular, protruding from the base body (14a - 14f).

Description

State of the art

[0001] A pressure washer filter device for a cleaning device having a base body which has a circumferential wall, wherein the circumferential wall has at least one filter recess for the filtered passage of a liquid, has already been proposed. Disclosure of the invention

[0002] The invention relates to a pressure washer filter device, in particular a pressure washer liquid filter, for a cleaning device, in particular a portable one, preferably for a low-pressure cleaner, with a base body which has a circumferential wall, wherein the circumferential wall has at least one filter recess for the filtered passage of a liquid.

[0003] It is proposed that the pressure washer filter device has a mounting unit with at least one mounting handle element arranged at a front end of the base body and in particular protruding from the base body.

[0004] The inventive design of the pressure washer filter device allows for particularly simple and / or reliable installation of the pressure washer filter device on the cleaning device, particularly in a fluid tank of the cleaning device. Advantageously, the pressure washer filter device can be gripped particularly securely and / or easily, preferably with a tool, preferably with needle-nose pliers or the like. This allows for particularly high user comfort. The pressure filter cleaning device can be removed and / or installed particularly easily and / or quickly.

[0005] The cleaning device is preferably designed as a high-pressure cleaner or as a low-pressure cleaner. The low-pressure cleaner is particularly designed to generate a maximum fluid pressure of 25 bar. It is conceivable that the water pressure of the cleaning device is adjustable. The high-pressure cleaner is particularly designed to generate a fluid pressure of at least 70 bar, preferably at least 80 bar, and more preferably at least 100 bar. “Designed” should be understood to mean, in particular, specially programmed, designed, and / or equipped. The fact that an object is designed for a specific function should be understood to mean, in particular, that the object fulfills and / or executes this specific function in at least one application and / or operating state.

[0006] The cleaning device is preferably designed as a portable cleaning device. A "portable cleaning device" is understood here to mean, in particular, a cleaning device for cleaning objects that can be transported by an operator without the need for a transport machine. The portable cleaning device has, in particular, a mass of less than 40 kg, preferably less than 10 kg, and particularly preferably less than 5 kg. Alternatively or additionally, it is conceivable for the cleaning device to have means of movement, for example, rollers, wheels, or the like.

[0007] The cleaning device is preferably designed as a cordless, in particular battery-operated, cleaning device. The cleaning device preferably has an energy storage receptacle for receiving an energy storage device, for example a rechargeable battery pack or a battery pack. The energy storage receptacle preferably has an electrical interface for electrical connection to the energy storage device. It is conceivable for the energy storage device to be part of the cleaning device. It is conceivable for the energy storage receptacle to have a closure element, for example a lid, for closing an energy storage receptacle area of ​​the energy storage receptacle for the energy storage device. It is conceivable for the energy storage device to be removably arranged in the energy storage receptacle, preferably without tools, for example for charging and / or replacement or the like.Alternatively, it is conceivable that the energy storage device is integrated into an outer housing unit of the cleaning device, in particular by means of a tool or the like, and can be detached from the energy storage receptacle.

[0008] The cleaning device preferably has a drive unit. The drive unit preferably has a motor, for example an electric motor. The cleaning device preferably has a pump. The pump is intended in particular to transport a liquid in a hose of the cleaning device to a liquid dispensing unit, for example a cleaning nozzle, a spray gun or the like, preferably arranged at a free end of the hose. The drive unit is preferably intended at least to drive the pump. The drive unit is preferably connected, in particular at least electrically, to the energy storage receptacle, preferably to the electrical interface. The drive unit can preferably be supplied with electrical energy via the energy storage device.

[0009] The cleaning device preferably has a control and / or regulating unit for controlling the drive unit. The control and / or regulating unit comprises, in particular, at least one processor and one memory element, as well as an operating program stored on the memory element. The memory element is preferably designed as a digital storage medium, for example, as a hard disk or the like. The control or regulating unit is preferably arranged at least partially in the outer housing unit. The drive unit and / or the pump are / are arranged, in particular, in the outer housing unit.

[0010] The cleaning device preferably has a liquid tank for holding a liquid. The liquid tank preferably has an inlet opening for filling the liquid tank with a cleaning liquid, for example water and / or a cleaning agent. The liquid tank in particular has an outlet opening for discharging the liquid from the liquid tank. The outlet opening is preferably fluidically connected to the pump, in particular via a connecting hose or the like. The hose is preferably fluidically connected to the liquid tank. The pump is preferably fluidically arranged between the hose and the outlet opening of the liquid tank. The cleaning device preferably has a closure element, for example a lid or the like, for closing the inlet opening of the liquid tank.

[0011] The liquid tank is preferably arranged on the outer housing unit, preferably arranged within the outer housing unit, preferably integrated into the outer housing unit, for example, formed at least partially integrally with the outer housing unit. The phrase "at least one unit and at least one further unit are formed at least partially integrally with one another" is to be understood in particular to mean that at least one element of the unit is formed integrally with at least one further element of the further unit.“In one piece” can be understood as meaning at least materially connected, for example by a welding process, a soldering process, an adhesive process, an injection molding process and / or another process that appears appropriate to the person skilled in the art, and / or advantageously formed in one piece, such as by production from a casting and / or by production in a single or multi-component injection molding process and advantageously from a single blank.

[0012] The pressure washer filter device is preferably designed as a pressure washer fluid filter for filtering a fluid in a pressure washer, preferably the cleaning device. The pressure washer filter device is particularly intended for arrangement at the outlet opening of the fluid tank. The pressure washer filter device is preferably intended to filter a fluid from the fluid tank, particularly between the fluid tank and the pump and / or the hose. The pressure washer filter device is designed, for example, as a 300 µm fluid filter. Alternatively, however, it is also conceivable for the pressure washer filter device to be configured to filter other particle sizes that a person skilled in the art would consider appropriate. The total filter surface of the pressure washer filter device is preferably at least 1000 mm 2 , preferably at least 1200 mm 2and particularly preferably at least 1300 mm 2 . The total filter area of ​​the pressure washer filter device is preferably a maximum of 2000 mm 2 , preferably maximum 1500 mm 2 and particularly preferably a maximum of 1400 mm 2 Alternatively, it is also conceivable that the total filter area is smaller than 1000 mm 2 or greater than 2000 mm 2 .

[0013] The pressure washer filter device is preferably cup-shaped. The surrounding wall preferably consists of at least webs and at least one filter recess, preferably a plurality of filter recesses, for the filtered passage of a liquid. The base body is preferably closed at the front end, at which in particular the mounting handle element is arranged; in particular, the base body has a closed bottom at the front end. Alternatively, it is conceivable for the base body to have at least one filter recess at the front end for the filtered passage of a liquid. At a further front end of the base body, which is arranged in particular on a side facing away from the front end, the base body has an opening, in particular a liquid passage opening.The filter recess has a filter element, for example a filter mesh or the like. The filter element preferably completely fills a recess in the filter recess. Alternatively, it is conceivable for the webs to form a filter grid or filter mesh of the pressure washer filter device, wherein the filter recesses can be free of filter elements arranged therein. The pressure washer filter device, preferably the mounting unit, preferably has an insertion end which is intended in particular to be connected to a filter receptacle of the cleaning device, preferably to be inserted into the filter receptacle, when the pressure washer filter device is mounted on the cleaning device, preferably in the liquid tank. The insertion end is arranged in particular on a side facing away from the mounting handle element, in particular of the base body. The insertion end preferably has a holding element.The retaining element can be designed, for example, as an O-ring, a rib, or the like. The insertion end preferably has at least one receiving recess for at least one sealing element, for example, an O-ring. It is conceivable that the retaining element corresponds to the sealing element.

[0014] The mounting handle element is preferably arranged on a side of the base body facing away from the further front end, in particular on an outer side of the base body. The mounting handle element is preferably designed to protrude from the base body. The mounting handle element is formed integrally with the base body, in particular with the webs of the base body and / or the base.

[0015] It is conceivable that the cleaning device comprises a liquid pre-filter, which is preferably designed to filter liquid before it enters the liquid tank, in particular via the inlet opening. The liquid pre-filter is preferably designed to be arranged at the inlet opening. The liquid pre-filter can preferably be detachably arranged at the inlet opening. In this context, "detachable" should be understood in particular to mean "non-destructively removable." The liquid pre-filter is designed, for example, as a 300 µm liquid filter. Alternatively, however, it is also conceivable that the liquid pre-filter is designed to filter other particle sizes that a person skilled in the art would deem appropriate.

[0016] It is further proposed that the assembly handle element have a profiled, in particular toothed, assembly grip surface. This advantageously enables particularly secure, simple, and / or reliable gripping of the assembly handle element. A particularly high level of user comfort can be achieved during assembly and / or disassembly of the pressure cleaner filter device. Preferably, the assembly handle element has a plurality of, in particular spaced-apart, assembly grip surfaces. The assembly handle element, in particular the assembly grip surface, is preferably designed to be gripped by a tool, preferably needle-nose pliers or the like, in particular for assembly or disassembly of the pressure filter cleaning device on the filter holder of the cleaning device.

[0017] Furthermore, it is proposed that the pressure filter cleaning device have a main extension axis, wherein a mounting grip surface of the mounting grip element, in particular the one already mentioned, has an orientation angled to the main extension axis. Undesired rotation of the pressure cleaner filter device when mounting the pressure cleaner filter device on the outlet opening of the liquid tank can advantageously be counteracted. A particularly simple, reliable and / or convenient installation of the pressure cleaner filter device can be achieved. A "main extension axis" of an object can be understood in particular as an axis which runs parallel to a longest edge of a smallest geometric cuboid which just completely encloses the object and in particular runs through the center of the cuboid. "Angled" should be understood in particular as different from parallel.An angle between the main extension axis and the orientation of the mounting grip surface is preferably less than 90°, preferably less than 45°, particularly preferably less than 30°, and preferably greater than 10°, preferably greater than 15°. The mounting grip element preferably has a further mounting grip surface, wherein an angle of an orientation of the further mounting grip surface to the main extension axis has a value which corresponds in particular to a value of the angle between the orientation of the mounting grip surface and the main extension axis. Preferably, the mounting grip surface and the further mounting grip surface are arranged symmetrically with respect to the main extension axis. The plurality of mounting grip surfaces can have different orientations, at least in part, relative to one another.

[0018] It is also proposed that the assembly handle element have an assembly grip surface, in particular the one already mentioned above, and a tool stop contour that at least partially delimits the assembly grip surface. Advantageously, undesired rotation of the pressure washer filter device during assembly can be counteracted in a simple design. A pressure washer filter device with particularly high assembly comfort can be provided. The tool stop contour is provided in particular to limit, preferably block, rotation of the tool when gripping the assembly grip surface relative to the assembly grip surface. The tool stop contour is provided in particular to form an axial stop for the tool with respect to the main extension axis.The tool stop contour forms in particular an at least one-sided, preferably at least two-sided, preferably at least three-sided, limitation for the assembly grip surface.

[0019] In one aspect of the invention, which can be considered in particular independently of further aspects of the invention, it is proposed that the pressure washer filter device has a mounting unit, in particular the one already mentioned above, with at least one stop unit arranged on the circumferential wall for marking a mounting position on the filter receptacle of the cleaning device. Advantageously, mounting of the pressure washer filter device can be checked particularly reliably and / or easily. A particularly high level of user comfort can be achieved. The filter receptacle is preferably arranged at the outlet opening, preferably formed at least partially by the outlet opening. The stop unit preferably has at least one stop element. The stop unit, preferably the stop element, is preferably formed integrally with the base body, in particular with the webs.The stop element is preferably formed as a projection on the peripheral wall. A main extension plane of the stop element preferably runs at least substantially perpendicular to the main extension axis. A "main extension plane" of a structural unit or an element can be understood as a plane that is parallel to a largest side surface of a smallest possible imaginary cuboid that just completely encloses the structural unit, and in particular runs through the center of the cuboid. The stop element preferably has a stop surface, which is arranged in particular facing away from the assembly handle element. The stop surface preferably runs at least substantially perpendicular to the main extension axis."Substantially perpendicular" can be understood as an alignment of a direction relative to a reference direction, wherein the direction and the reference direction, particularly viewed in a projection plane, enclose an angle of 90°, and the angle has a maximum deviation of, in particular, less than 8°, advantageously less than 5°, and particularly advantageously less than 2°. The stop unit is preferably designed symmetrically with respect to the main extension axis. In the assembly position, the stop unit, in particular the stop element, preferably the stop surface, preferably rests against the liquid tank.

[0020] It is further proposed that at least part of the stop unit be movable relative to the surrounding wall. The mounting position can advantageously be marked haptically. This allows for particularly high user comfort. Preferably, at least part of the stop unit, preferably the stop element, is connected to the base body in a spring-elastic manner.

[0021] It is also proposed that the mounting unit have a ramp element which is intended to generate a movement of the part of the stop unit during assembly on the filter holder. Advantageously, a haptic identification of the mounting position can be implemented in a particularly simple design. A haptic identification of the mounting position can be achieved in a particularly cost-effective manner. The ramp element is preferably formed integrally with the stop element. The ramp element preferably has a ramp surface which is intended to interact with the liquid tank, preferably the outlet opening, during assembly of the pressure washer filter device. Preferably, the ramp element is intended to bear against the liquid tank during assembly of the pressure washer filter device, preferably to strike it, preferably in order to generate the movement of the stop element relative to the base body.The ramp surface preferably extends at an angle to the main extension axis of the pressure washer filter device. The ramp element is particularly intended to provide a user with haptic feedback regarding the installation of the pressure washer filter device on the filter holder, preferably by means of a click-through feedback. The movement of the part of the stop unit preferably extends radially relative to the main extension axis. In particular, the part of the stop unit, preferably the stop elements, moves in the direction of the main extension axis during installation.

[0022] It is further proposed that the stop unit have at least one recess for a fluid passage when mounted on the filter holder. This advantageously allows a mounting position to be marked particularly reliably, while simultaneously allowing complete emptying of the fluid tank when the pressure washer filter device is mounted.

[0023] Furthermore, it is proposed that the mounting unit has a ribbed insertion end, in particular arranged on an end of the base body facing away from the mounting handle element, for attachment to the filter receptacle of the cleaning device. Advantageously, haptic feedback regarding the installation of the pressure washer filter device on the filter receptacle can be provided to the user in a particularly simple manner. Advantageously, a particularly high level of user comfort can be achieved. The ribbed insertion end preferably has at least one rib, preferably at least two ribs, particularly preferably three or more ribs. A main extension plane preferably runs at least substantially perpendicular to the main extension axis. The ribs differ, for example, in a maximum extension in the radial direction, in particular with respect to the main extension axis.The maximum extensions of the ribs in the radial direction, in particular with respect to the main extension axis, increase in particular in the direction of the mounting handle element.

[0024] In one aspect of the invention, which can be considered in particular independently of further aspects of the invention, it is proposed that the pressure washer filter device has an assembly unit, in particular the one already mentioned above, with at least two spaced-apart receiving recesses for sealing elements, in particular for O-rings. Advantageously, two sealing elements arranged in the two spaced-apart receiving recesses at two different locations can provide a haptic feedback to a user regarding the assembly of the pressure washer filter device to the filter holder. A particularly secure and / or comfortable assembly of the pressure washer filter device to the filter holder can be realized. The receiving recesses are arranged at a distance in particular in an axial direction with respect to the main extension axis.The pressure washer filter device preferably has two, in particular the previously mentioned, sealing elements, preferably O-rings, which are arranged in the receiving recesses.

[0025] In one aspect of the invention, which can be considered in particular independently of further aspects of the invention, it is proposed that the cleaning device has a mounting unit, in particular the one already mentioned above, with a display unit, in particular a mechanically designed display unit, for displaying an installed state on a filter holder of the cleaning device. Advantageously, a visual indication of the installation position can be provided to the user in a structurally particularly simple manner. A particularly reliable and / or user-friendly installation of the pressure washer filter device on the filter holder can be realized. The display unit preferably has at least one display element. The display element is preferably arranged to be movable relative to the base body and in particular relative to the stop unit.The display unit, in particular the display element, is preferably arranged on the stop unit, in particular on the stop element. The display element is preferably designed as a rubber component. Alternatively, however, it is also conceivable for the display element to be designed as a metal component or the like. The display element preferably has a signal color, preferably red or alternatively yellow, orange or another color that appears appropriate to a person skilled in the art. The stop element preferably has a recess in which a projection, in particular an indicator projection, of the display element is arranged. Preferably, by mounting the pressure washer filter device on the filter holder, a movement of the display unit, in particular of the display element, relative to the stop unit can be generated, preferably by an interaction, in particular an abutment, of the display element on the liquid tank.The projection protrudes in particular on a side of the recess facing away from the further front end, preferably in order to indicate the mounting position of the pressure washer filter device.

[0026] Furthermore, a portable cleaning device with a pressure washer filter device according to the invention is proposed. Such a design of the cleaning device allows for particularly simple and / or reliable installation of the pressure washer filter device in the fluid tank of the cleaning device. Advantageously, the pressure washer filter device can be gripped particularly securely and / or easily, preferably with a tool, preferably with needle-nose pliers or the like. This allows for particularly high user comfort. The pressure filter cleaning device can be removed and / or installed particularly easily and / or quickly.

[0027] The pressure washer filter device according to the invention and / or the portable cleaning device according to the invention should not be limited to the application and embodiment described above. In particular, the pressure washer filter device according to the invention and / or the portable cleaning device according to the invention can have a number of individual elements, components, and units that differs from the number stated herein to fulfill a functionality described herein. Furthermore, in the value ranges specified in this disclosure, values ​​within the stated limits are also to be considered disclosed and can be used arbitrarily. drawing

[0028] Further advantages will become apparent from the following description of the drawings. The drawings illustrate six exemplary embodiments of the invention. The drawings, the description, and the claims contain numerous features in combination. Those skilled in the art will also expediently consider the features individually and combine them into useful further combinations.

[0029] They show: Fig. 1 a portable cleaning device according to the invention in a perspective view, Fig. 2 a cross-sectional view of a part of the portable cleaning device with a pressure filter cleaning device, Fig. 3a is an enlarged view of the pressure filter cleaning device in a state arranged in the portable cleaning device, Fig. 3b a cross-sectional view of the pressure filter cleaning device from Fig. 2 in an enlarged view, Fig. 4 the pressure filter cleaning device in a perspective view Fig. 5 a pressure filter cleaning device in a first alternative embodiment in a perspective view, Fig. 6 a pressure filter cleaning device in a second alternative embodiment in a perspective view, Fig. 7 a part of a pressure filter cleaning device in a third alternative embodiment in a perspective view, Fig. 8 a part of a pressure filter cleaning device in a fourth alternative embodiment in a perspective view, and Fig. 9 a pressure filter cleaning device in a fifth alternative embodiment in a perspective view. Description of the embodiments

[0030] Fig. Figure 1 shows a portable cleaning device 12a. The cleaning device 12a is designed as a low-pressure cleaner. The low-pressure cleaner is configured to generate a maximum fluid pressure of 25 bar. It is conceivable that the water pressure of the cleaning device 12a is adjustable. Alternatively, it is conceivable that the cleaning device 12a is designed as a high-pressure cleaner.

[0031] The cleaning device 12a is designed as a cordless, in particular battery-operated, cleaning device. The cleaning device 12a has an energy storage receptacle 50a for receiving an energy storage device (not shown here), for example, a rechargeable battery pack or a battery pack. The energy storage receptacle 50a has an electrical interface (not shown here) for electrically connecting to the energy storage device. It is conceivable that the energy storage device is part of the cleaning device 12a. The energy storage receptacle 50a has a closure element 52a, for example, a lid, for closing an energy storage receiving area of ​​the energy storage receptacle 50a for the energy storage device.

[0032] It is conceivable that the energy storage device can be removably arranged in the energy storage receptacle 50a, preferably without tools, for example for charging and / or replacement or the like. Alternatively, it is conceivable that the energy storage device is integrated into an outer housing unit 54a of the cleaning device 12a, in particular by means of a tool or the like, and can be detached from the energy storage receptacle 50a.

[0033] The cleaning device 12a has a drive unit 68a. The drive unit 68a has a motor, for example, an electric motor. The cleaning device 12a has a pump 70a. The pump 70a is provided to transport a liquid in a hose 56a of the cleaning device 12a to a liquid dispensing unit 58a, for example, a cleaning nozzle, a spray gun, or the like, preferably arranged at a free end of the hose 56a. The drive unit 68a is provided at least to drive the pump 70a. The drive unit 68a is connected, in particular at least electrically, to the energy storage receptacle 50a, preferably to the electrical interface. The drive unit 68a can be supplied with electrical energy via the energy storage device.

[0034] The cleaning device 12a has a control and / or regulating unit (not shown here) for controlling the drive unit 68a. The control and / or regulating unit comprises, in particular, at least one processor and one memory element, as well as an operating program stored on the memory element. The memory element is preferably designed as a digital storage medium, for example, as a hard disk or the like. The control or regulating unit is at least partially arranged in the outer housing unit 54a. The drive unit 68a and / or the pump 70a are / are arranged, in particular, in the outer housing unit 58a.

[0035] The cleaning device 12a has a liquid tank 60a for holding a liquid. The liquid tank 60a has an inlet opening 62a for filling the liquid tank 60a with a cleaning liquid, for example, water and / or a cleaning agent. The liquid tank 60a has an outlet opening (not shown here) for discharging the liquid from the liquid tank 60a. The outlet opening is fluidly connected to the pump 70a, in particular via a connecting hose or the like. The hose 56a is fluidly connected to the liquid tank 60a. The pump 70a is fluidly arranged between the hose 56a and the outlet opening of the liquid tank 60a. The cleaning device 12a has a closure element 64a, for example, a lid or the like, for closing the inlet opening 62a of the liquid tank 60a.

[0036] The liquid tank 60a is arranged on the outer housing unit 54a, preferably arranged within the outer housing unit 54a, preferably integrated into the outer housing unit 54a, for example at least partially formed in one piece with the outer housing unit.

[0037] The portable cleaning device 12a has a pressure washer filter device 10a (cf. Fig. 2). The pressure washer filter device 10a has a base body 14a (cf. Fig. 4). The base body 14a has a circumferential wall 16a. The circumferential wall 16a has a plurality of filter recesses 18a (in Fig. 4, two of the filter recesses 18a are provided with a reference numeral for the sake of clarity. The filter recesses 18a are provided for the filtered passage of a liquid. The pressure reducer filter device 10a has a mounting unit 20a. The mounting unit 20a has a mounting handle element 24a arranged at a front end 22a of the base body 14a. The mounting handle element 24a protrudes from the base body 14a.

[0038] The pressure washer filter device 10a is designed as a pressure washer fluid filter for filtering a fluid in a pressure washer, preferably the cleaning device 12a. The pressure washer filter device 10a is intended for arrangement at an outlet opening 66a of the fluid tank 60a. The pressure washer filter device 10a is intended to filter a fluid from the fluid tank 60a, in particular between the fluid tank 60a and the pump 70a and / or the hose 56a. The pressure washer filter device 10a is designed, for example, as a 300 µm fluid filter. Alternatively, however, it is also conceivable that the pressure washer filter device 10a is configured to filter other particle sizes that a person skilled in the art would consider appropriate. The total filter surface of the pressure washer filter device 10a is, for example, at least 1000 mm 2 , preferably at least 1200 mm 2and particularly preferably at least 1300 mm 2 . The total filter area of ​​the pressure washer filter device 10a is, for example, a maximum of 2000 mm 2 , preferably maximum 1500 mm 2 and particularly preferably a maximum of 1400 mm 2 Alternatively, it is also conceivable that the total filter area is smaller than 1000 mm 2 or greater than 2000 mm 2 .

[0039] The pressure washer filter device 10a is cup-shaped. The surrounding wall 16a consists at least of webs and the filter recesses 18a for the filtered passage of a liquid. The base body 14a is closed at the front end 22a, at which, in particular, the mounting handle element 24a is arranged; in particular, the base body 14a has a closed bottom 72a at the front end. Alternatively, it is conceivable for the base body 14a to have at least one filter recess at the front end 22a for the filtered passage of a liquid. At a further front end 74a of the base body 14a, which is arranged in particular on a side facing away from the front end 22a, the base body 14a has an opening 76a, in particular a liquid passage opening.

[0040] The filter recesses 18a each have a filter element 78a, for example, a filter mesh or the like. The filter elements 78a completely fill a respective recess 80a of the filter recess 18a. Alternatively, it is conceivable for the webs to form a filter grid or filter mesh of the pressure washer filter device, wherein the filter recesses can be free of filter elements arranged therein.

[0041] The mounting handle element 24a is arranged on a side of the base body 14a facing away from the further end face 74a, in particular on an outer side 82a of the base body 14a. The mounting handle element 24a is designed to protrude from the base body 14a. The mounting handle element 24a is formed integrally with the base body 14a, in particular with the webs of the base body 14a and / or the base 72a.

[0042] It is conceivable that the cleaning device 12a comprises a liquid pre-filter (not shown here), which is preferably designed to filter liquid before it enters the liquid tank 60a, in particular via the inlet opening 62a. The liquid pre-filter is preferably designed to be arranged at the inlet opening 62a. The liquid pre-filter is preferably detachably arranged at the inlet opening 62a. The liquid pre-filter is designed, for example, as a 300 µm liquid filter. Alternatively, however, it is also conceivable that the liquid pre-filter is designed to filter other particle sizes that a person skilled in the art would deem appropriate.

[0043] The assembly handle element 24a has, for example, four profiled, in particular toothed, assembly handle surfaces 26a (in Fig. 4, only two of the four mounting grip surfaces 26a are provided with a reference numeral. Alternatively, it is also conceivable that the mounting grip element 24a has fewer, for example, one, two or three mounting grip surfaces 26a, or more than four mounting grip surfaces 26a.

[0044] The pressure washer filter device 10a has a main extension axis 28a. The mounting grip surfaces 26a of the mounting grip element 24a each have an orientation 32a that is angled relative to the main extension axis 28a. The mounting grip surfaces 26a run at least substantially parallel to one another. Two mounting grip surfaces 26a are arranged one above the other on opposite sides. The mounting grip surfaces 26a have, at least in part, different orientations 32a relative to one another.

[0045] An angle between the main extension axis 28a and a respective orientation of the mounting grip surfaces 26a is less than 90°, preferably less than 45°, particularly preferably less than 30°, and greater than 10°, preferably greater than 15°. The mounting grip surfaces 26a are arranged symmetrically with respect to the main extension axis 28a.

[0046] The assembly grip element 24a has a tool stop contour 34a that at least partially delimits the assembly grip surfaces 26a. The tool stop contour 34a is provided to limit, preferably block, rotation of a tool, preferably a pair of needle-nose pliers, when gripping the assembly grip surface 26a relative to the assembly grip surface 26a. The tool stop contour 34a is provided to form an axial stop for the tool with respect to the main extension axis 28a. The tool stop contour 34a forms a three-sided boundary for the respective assembly grip surface 26a.

[0047] The mounting unit 20a has a stop unit 36a arranged on the surrounding wall 16a. The stop unit 36a is provided for marking a mounting position on a filter holder 38a of the cleaning device 12 (see Fig. 3a and Figure b).

[0048] The filter holder 38a is arranged at the outlet opening 66a, preferably at least partially formed by the outlet opening 66a. The stop unit 36a has two stop elements 84a. Alternatively, it is conceivable for the stop unit 36a to have only one stop element 84a or more than two stop elements 84a. The stop unit 36a, preferably the stop elements 84a, are formed integrally with the base body 14a, in particular with the webs. The stop elements 84a are formed as projections on the circumferential wall 16a. Main extension planes of the stop elements 84a run at least substantially perpendicular to the main extension axis 28a. The stop elements 84a each have a stop surface 86a, which is arranged in particular facing away from the mounting handle element 24a. The stop surfaces 86a run at least substantially perpendicular to the main extension axis 28a.The stop unit 36a is designed symmetrically with respect to the main extension axis 28a. In the assembly position, the stop unit 36a, in particular the stop elements 84a, preferably the stop surfaces 86a, rest against the liquid tank 60a.

[0049] The stop unit 36a has two recesses 44a for a fluid passage when mounted on the filter holder 38a. The recesses 44a are arranged between the stop elements 84a in a circumferential direction, which in particular runs in a plane perpendicular to the main extension axis. Alternatively, it is conceivable for the stop unit 36a to have only one recess 44a or more than two recesses 44a.

[0050] In the Fig. 5 to 9 show further embodiments of the invention. The following descriptions and the drawings are essentially limited to the differences between the embodiments, whereby with regard to components with the same designation, in particular with regard to components with the same reference numerals, reference is also made to the drawings and / or the description of the other embodiments, in particular to the Fig. 1 to 4. To distinguish the embodiments, the letter a is added to the reference numerals of the embodiment in the Fig. 1 to 4. In the examples of the Fig. In numbers 5 to 9, the letter a is replaced by the letters b to f.

[0051] Fig. 5 shows a pressure washer filter device 10b for a particularly portable cleaning device, preferably for a low-pressure cleaner. The pressure washer filter device 10b has a base body 14b. The base body 14b has a circumferential wall 16b. The circumferential wall 16b has a plurality of filter recesses 18b (in Fig. 5, only one of the filter recesses 18b is provided with a reference symbol. The filter recesses 18b are provided for the filtered passage of a liquid.

[0052] The pressure washer filter device 10b has a mounting unit 20b. The mounting unit 20b has a mounting handle element 24b arranged at a front end 22b of the base body 14b and, in particular, protruding from the base body 14b.

[0053] The mounting unit 20b has a ribbed insertion end 30b for attachment to a filter receptacle of the cleaning device. The ribbed insertion end 30b is arranged at an end of the base body 14b facing away from the mounting handle element 24b. The ribbed insertion end 30b has three ribs 88b. Alternatively, it is conceivable for the insertion end 30b to have only one rib 88b, two ribs 88b, or more than three ribs 88b. Main extension planes of the ribs 88b run at least substantially perpendicular to a main extension axis of the pressure washer filter device 10b. The ribs 88b differ, for example, in a maximum extension in the radial direction, in particular with respect to the main extension axis. The maximum extensions of the ribs 88b in the radial direction, in particular with respect to the main extension axis, increase in particular in the direction of the mounting handle element 14b.

[0054] Fig. 6 shows a pressure washer filter device 10c for a particularly portable cleaning device, preferably for a low-pressure cleaner. The pressure washer filter device 10c has a base body 14c. The base body 14c has a circumferential wall 16c. The circumferential wall 16c has a plurality of filter recesses 18c (in Fig. 6, only one of the filter recesses 18c is provided with a reference symbol. The filter recesses 18c are provided for the filtered passage of a liquid.

[0055] The pressure washer filter device 10c has a mounting unit 20c. The mounting unit 20c has a mounting handle element 24c arranged at a front end 22c of the base body 14c and, in particular, protruding from the base body 14c.

[0056] The mounting unit 20c has two spaced-apart receiving recesses 46c for sealing elements (not shown here), in particular for O-rings. It is conceivable that the sealing elements are part of the pressure washer filter device 10c. The receiving recesses 46c are arranged spaced apart in an axial direction relative to a main extension axis of the pressure washer filter device 10c.

[0057] Fig. Figure 7 shows a part of a pressure washer filter device 10d for a particularly portable cleaning device, preferably for a low-pressure cleaner. The pressure washer filter device 10d has a base body 14d. The base body 14d has a circumferential wall 16d. The circumferential wall 16d has a plurality of filter recesses 18d (in Fig. 7, only one of the filter recesses 18d is provided with a reference symbol. The filter recesses 18d are intended for the filtered passage of a liquid.

[0058] The pressure washer filter device 10d has a mounting unit 20d. The mounting unit 20d has a mounting handle element (not shown here) arranged at a front end (not shown here) of the base body 14d and, in particular, protruding from the base body 14d.

[0059] The mounting unit 20d has a display unit 48d, in particular a mechanically designed display unit, for displaying an installed state on a filter holder of the cleaning device. The display unit 48d has a display element 92d. The display element 92d is arranged to be movable relative to the base body 14d and in particular relative to a stop unit 36d of the pressure washer filter device 10d. The display element 92d is arranged on the stop unit 36d, in particular on a stop element 84d of the stop unit 36d. The display element 92d is designed as a rubber component. Alternatively, however, it is also conceivable for the display element 92d to be designed as a metal component or the like. It is conceivable for the display element 92d to have a signal color, preferably red or alternatively yellow, orange, or another color deemed appropriate by a person skilled in the art.

[0060] The stop element 84d has a recess 94d. A projection 96d, in particular an indicator projection, of the indicator element 92d is arranged in the recess 94d. By mounting the pressure washer filter device 10d on a filter receptacle of the cleaning device 10d, a movement of the indicator unit 48d, in particular of the indicator element 92d, relative to the stop unit 36d can be generated, preferably by an interaction, in particular a striking, of the indicator element 92d on the liquid tank. The projection 96d protrudes on a side 98d of the recess 94d facing away from a further end face 74d, preferably to indicate the mounting position of the pressure washer filter device 10d.

[0061] Fig. Figure 8 shows part of a pressure washer filter device 10e for a particularly portable cleaning device, preferably for a low-pressure cleaner. The pressure washer filter device 10e has a base body 14e. The base body 14e has a circumferential wall 16e. The circumferential wall 16e has a plurality of filter recesses 18e (in Fig. 8, only one of the filter recesses 18e is provided with a reference symbol. The filter recesses 18e are provided for the filtered passage of a liquid.

[0062] The pressure washer filter device 10e has a mounting unit 20e. The mounting unit 20e has a mounting handle element (not shown here) arranged at a front end (not shown here) of the base body 14e and, in particular, protruding from the base body 14e.

[0063] The mounting unit 20e has a stop unit 36e arranged on the surrounding wall 16e for marking a mounting position on a filter holder of the cleaning device.

[0064] At least a portion 40e of the stop unit 36e is movable relative to the peripheral wall 16e. The portion 40e of the stop unit 36e, preferably stop elements 84e, are connected to the base body 14e in a spring-elastic manner. The stop elements 84e correspond to the portion 40e of the stop unit 36e. The stop elements 84e are formed integrally with the base body 14e.

[0065] The mounting unit 20e has two ramp elements 42e. The ramp elements 42e are provided to generate a movement of part 40e of the stop unit 36e, in particular the stop elements 84e, during assembly on the filter holder. One of the ramp elements 42e is arranged on each of the stop elements 84e. The ramp elements 42e are formed integrally with the stop elements 84e.

[0066] The ramp elements 42e each have a ramp surface 90e. The ramp surfaces 90e are intended to interact with a liquid tank, preferably an outlet opening of the liquid tank, during assembly of the pressure washer filter device 10e. The ramp elements 42e are intended to bear against the liquid tank during assembly of the pressure washer filter device 10e, preferably to abut against it, preferably to generate the movement of the stop elements 84e relative to the base body 14e. The ramp surfaces 90e extend at an angle to the main extension axis of the pressure washer filter device 10e. The ramp elements 42e are intended to provide a user with haptic feedback regarding the assembly of the pressure washer filter device 10e on the filter holder, preferably by means of a click-in feedback. The movement of part 40e of the stop unit 36e extends radially with respect to the main extension axis.In particular, the part 40e of the stop unit 36e, preferably the stop elements 84e, moves in the direction of the main extension axis during assembly.

[0067] Fig. 9 shows a pressure washer filter device 10f for a particularly portable cleaning device, preferably for a low-pressure cleaner. The pressure washer filter device 10f has a base body 14f. The base body 14f has a circumferential wall 16f. The circumferential wall 16f has a plurality of filter recesses 18f (in Fig. 9, only one of the filter recesses 18f is provided with a reference symbol. The filter recesses 18f are provided for the filtered passage of a liquid.

[0068] The pressure washer filter device 10f has a mounting unit 20f. The mounting unit 20f has a mounting handle element 24f arranged at a front end 22f of the base body 14f and protruding from the base body 14f. The mounting handle element 24f is eyelet-shaped.

Claims

[1] Pressure cleaner filter device (10a-10f), in particular pressure cleaner fluid filter, for a, in particular portable, cleaning device (12a), preferably for a low-pressure cleaner, with a base body (14a-14f) which has a circumferential wall (16a-16f), wherein the circumferential wall (16a-16f) has at least one filter recess (18a-18f) for filtered passage of a liquid, characterized by a mounting unit (20a - 20f) with at least one mounting handle element (24a - 24c) arranged at an end face (22a - 22f) of the base body (14a - 14f) and in particular projecting from the base body (14a - 14f). [2] Pressure cleaner filter device (10a - 10e) according to claim 1, characterized by , that the mounting handle element (24a - 24c) has a profiled, in particular toothed, mounting handle surface (26a). [3] Pressure cleaner filter device (10 - 10f) according to claim 1 or 2, characterized bya main extension axis (28a), wherein a mounting grip surface (26a) of the mounting grip element (24a - 24c) has an orientation (32a) angled to the main extension axis (28a). [4] Pressure cleaner filter device (10 - 10f) according to one of the preceding claims, characterized by , that the mounting handle element (24a - 24c) has a mounting handle surface (26a) and a tool stop contour (34a) that at least partially limits the mounting handle surface (26a). [5] Pressure cleaner filter device (10a - 10f) at least according to the preamble of claim 1, in particular according to one of the preceding claims, characterized by a mounting unit (20a - 20f) with at least one stop unit (36a - 36f) arranged on the surrounding wall (16a - 16f) for marking a mounting position on a filter holder (38a) of the cleaning device (12a). [6] Pressure cleaner filter device (10e) according to claim 5, characterized by, that at least part (40e) of the stop unit (36e) is movable relative to the surrounding wall (16e). [7] Pressure cleaner filter device (10e) according to claim 6, characterized by , that the mounting unit (20e) has a ramp element (42e) which is designed to generate a movement of the part (40e) of the stop unit (36e) when mounted on the filter holder (38a). [8] Pressure cleaner filter device (10a - 10f) according to one of claims 5 to 7, characterized by , that the stop unit (36a - 36f) has at least one recess (44a) for a liquid passage in a state mounted on the filter holder (38a). [9] Pressure cleaner filter device (10b) according to one of the preceding claims, characterized by, that the mounting unit (20b) has a ribbed insertion end (30b) arranged in particular on an end of the base body (14b) facing away from the mounting handle element (24b) for attachment to a filter holder (28a) of the cleaning device (12a). [10] Pressure cleaner filter device (10c) at least according to the preamble of claim 1, in particular according to one of the preceding claims, characterized by a mounting unit (20c) with at least two spaced-apart receiving recesses (46c) for sealing elements, in particular for O-rings. [11] Pressure cleaner filter device (10d) at least according to the preamble of claim 1, in particular according to one of the preceding claims, characterized by a mounting unit (20d) with a display unit (48d), in particular a mechanically designed one, for displaying a mounted state on a filter holder (38a) of the cleaning device (12a). [12] Portable cleaning device (12a) with a pressure cleaner filter device (10a - 10f) according to one of the preceding claims.

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