CN108720710B

CN108720710B - Cleaning accessory for hose accessories

Info

Publication number: CN108720710B
Application number: CN201810350069.5A
Authority: CN
Inventors: A·哈里森
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2017-04-18
Filing date: 2018-04-18
Publication date: 2021-06-11
Anticipated expiration: 2038-04-18
Also published as: CN108720710A; DE102017206503A1

Abstract

The invention relates to a hose attachment (150) for the adjustable discharge of a fluid, in particular a cleaning attachment (200) for a hand-held spray gun or a cleaning sprayer, the cleaning attachment (200) having a cleaning section (240) and a connecting section (220), wherein the connecting section (220) is designed for releasable arrangement on the hose attachment (150) and is provided for enabling the turning of a device (160) for setting different fluid jet types, in particular a nozzle head or a nozzle selection head of the hose attachment (150), for the discharge of at least two different fluid jet types, and wherein the cleaning section (240) has a slot (245) through which the fluid can flow out unimpeded at least in one, in particular in one of the at least two fluid jet types.

Description

Cleaning accessory for hose accessories

Technical Field

The invention relates to a cleaning attachment for a hose attachment, in particular for a hand-held spray gun or a cleaning sprayer, for adjustably discharging a fluid.

Background

Such cleaning attachments for hose attachments are known from the prior art. The hose attachment is designed as a hand-held spray gun and the cleaning attachment is designed as a brush. The cleaning attachment can be fastened for use to a hose attachment, whereby a fluid, in particular water, can be discharged into the brush or via the brush.

Disclosure of Invention

The invention provides a new cleaning attachment for a hose attachment for adjustably discharging fluid, in particular for a hand-held spray gun or a cleaning sprayer. The cleaning attachment has a cleaning section and a connecting section, wherein the connecting section is designed for releasable arrangement on the hose attachment and is provided for enabling the nozzle head or the nozzle selection head of a device for adjusting different fluid jet types, in particular the hose attachment, to be twisted in order to emit different at least two fluid jet types. The cleaning section has a slot through which the fluid can flow out at least in one, in particular in any case one, of the at least two fluid jet types without obstruction.

The invention thus makes it possible to provide a cleaning attachment in which the usability of the cleaning attachment can be improved by the notches formed in the cleaning zone. Thus, for example, a faster and less complex change of cleaning and spraying processes can be achieved without the cleaning attachment having to be removed for this purpose from the hose attachment, in which cleaning process the cleaning attachment is used, for example, frictionally for removing dirt from surfaces; during the jetting process, fluid is applied only to the surface.

Preferably, the cleaning attachment can be releasably fastened to the hose attachment by means of a form-locking and/or force-locking structure, in particular a clamping connection. Thus, a quick and intuitive fixation of the cleaning attachment on the hose attachment is enabled.

The connecting section preferably has a receptacle for the surrounding and/or guidable arrangement of devices for setting up different fluid jet types. This makes it possible to arrange the cleaning attachment on the hose attachment in such a way that, in the case of this arrangement, unintentional outflow of fluid in the connecting region can be at least approximately prevented.

According to one embodiment, the receiving portion, in particular the region of the receiving portion facing the hose attachment, forms a sealing portion, which is preferably designed as a labyrinth seal, when the hose attachment is arranged. In a simple manner, an unintentional outflow of fluid in the direction of a user of the cleaning attachment can thus be prevented at least approximately.

Preferably, the cleaning section is arranged at a predetermined angle relative to the connecting section, wherein the predetermined angle is preferably greater than 90 °. Thus, a simple and uncomplicated application of the fluid onto a larger surface is possible, wherein an improved cleaning effect can be enabled.

The connecting section is preferably designed such that the device for setting different fluid jet types can be rotated in order to select one of the at least two different fluid jet types, in particular by twisting the device for setting different fluid jet types in order to subject different nozzles to a fluid load. Thus, it is also possible to enable a safe and reliable setting of the desired fluid jet pattern when the cleaning attachment is arranged on the hose attachment.

The slot of the cleaning section is preferably oval in shape and the outlet slot of the cleaning section associated with this slot is circular in shape. Thus, a slot suitable for unimpeded outflow of fluid may be provided.

According to one embodiment, the cleaning section has a length greater than the width and in particular has a rectangular or oval shape. Thus, it is made possible to treat the surface to be cleaned quickly and over a large area.

The cleaning segments preferably have bristles which preferably have different strengths, in particular at the ends assigned to the longitudinal extension of the cleaning segments. In a simple manner, it is thus possible to remove different types of soiling, in particular also stubborn soiling.

The cleaning section preferably has a cleaning nonwoven, which is in particular designed as a cotton nonwoven or a microfiber nonwoven and is preferably designed for cleaning glass surfaces. Thus, a cleaning attachment for cleaning glass surfaces, in particular windows, is made possible in a simple and uncomplicated manner.

Furthermore, the invention provides a hose attachment for adjustably discharging fluid, in particular with a garden hose and with a cleaning attachment as explained above. The hose attachment has a device for setting different fluid jet types in order to selectively discharge at least two different fluid jet types, and is preferably provided with at least two different nozzles, wherein each of the at least two different nozzles is assigned one of the at least two different fluid jet types.

The invention thus makes it possible to provide a hose attachment for the adjustable discharge of fluid, in particular with a garden hose and a cleaning attachment in which the usability of the cleaning attachment and thus of the hose attachment can be improved by the notch formed in the cleaning section. Thus, for example, a faster and less complicated change over of the cleaning process and the spraying process can be made possible without the cleaning attachment having to be removed for this purpose from the hose attachment, in which cleaning process the cleaning attachment is used, for example, frictionally for cleaning dirt on a surface; during the jetting process, fluid is applied only to the surface.

Furthermore, the invention provides a pressure cleaning device with a pressure generating unit for pressure loading of a fluid and a cleaning attachment as explained above. Thus, a device for applying a cleaning accessory can be provided in a simple manner.

The invention further provides a pressure cleaning device having a pressure generating unit for pressure-applying a fluid and a hose attachment for adjustably discharging the pressure-applied fluid, in particular a hand-held spray gun or a cleaning spray, wherein the hose attachment for discharging the fluid pressure-applied by the pressure generating unit has a device for setting different fluid jet types, in particular at least two different nozzles which are designed for selectively discharging the at least two different fluid jet types. The hose attachment is provided with a cleaning attachment having a cleaning section and a connecting section, wherein the connecting section is designed for releasable arrangement on the hose attachment and the cleaning section has a slot through which a pressurized fluid can flow out unimpeded at least in one type, in particular in any one type, of the at least two fluid jet types.

The invention thus makes it possible to provide a pressure cleaning device having a pressure generating unit for pressure application of a fluid and a hose attachment for adjustable discharge of the pressure-applied fluid, which hose attachment is equipped with a cleaning attachment in which the applicability of the cleaning attachment and thus of the hose attachment can be improved by means of a slot formed in the cleaning section. Thus, for example, a faster and less complex change of cleaning process and spray process can be achieved without the cleaning attachment having to be removed for this purpose from the hose attachment, in which cleaning process the cleaning attachment is used, for example, frictionally for removing dirt from a surface; during the jetting process, fluid is applied only to the surface.

According to one embodiment, the pressure cleaning device is configured in the type of a low-pressure cleaning device, wherein the pressure generating unit is configured for generating a maximum operating pressure of less than 25 bar, preferably less than 20 bar and particularly preferably less than 15 bar, and wherein the low-pressure cleaning device can be operated without nozzle spacing elements, in particular without a long rod (Lanze). Thus, a pressure device for low pressure applications can be provided in a simple manner.

Preferably, the at least two fluid beam types have a fan beam type, a spot beam type and/or a cone beam type. Thus, different, dedicated fluid jet types may be provided.

The device for setting different fluid jet types is preferably designed for setting at least one additional fluid jet type according to the free fluid jet type, and a means, in particular a blocking element, is provided which is designed for blocking the setting of the fluid jet type designed as a free fluid jet after the attachment of the cleaning attachment to the hose attachment. Thus, the adjustment of a fluid jet type which is unsuitable for a cleaning process by means of the cleaning attachment can be safely and reliably prevented.

A device, in particular the device described above, is preferably designed to prevent the cleaning attachment from being arranged on the hose attachment when the additional fluid jet type designed as a free fluid jet is set. Thus, the cleaning attachment can be prevented from operating with the additional fluid jet type in a simple manner.

Drawings

The invention is explained in detail in the following description on the basis of embodiments shown in the drawings. The figures show:

FIG. 1 is a perspective view illustrating a pressure cleaning apparatus having a hose attachment, according to one embodiment;

FIG. 2 is a front view of the hose attachment of FIG. 1;

FIG. 3 is a perspective view of the hose attachment of FIGS. 1 and 2 shown with a cleaning attachment according to one embodiment;

FIG. 4 is a longitudinal cross-section of the hose attachment and cleaning attachment of FIG. 3;

FIG. 5 is a side view of the cleaning attachment of FIGS. 3 and 4;

figure 6 is a front view of the cleaning attachment of figures 3 to 5;

FIG. 7 is a side elevational view of the hose attachment and cleaning attachment of FIGS. 3 and 4 interconnected by a connecting structure;

FIG. 8 is an enlarged section of the connection area of the hose attachment to the cleaning attachment of FIG. 7;

FIG. 9 is a simplified perspective view of the hose attachment and cleaning attachment of FIGS. 3 and 4 interconnected by an alternative connecting structure;

FIG. 10 is a simplified side view of the hose attachment and cleaning attachment of FIG. 9;

FIG. 11 is a simplified side view of the hose attachment and cleaning attachment of FIGS. 3 and 4 interconnected by another alternative connecting structure;

FIG. 12 is a simplified perspective view of the hose attachment and cleaning attachment of FIG. 11;

FIG. 13 is a simplified side view of the hose attachment and cleaning attachment of FIGS. 3 and 4 interconnected by another alternative connecting structure;

FIG. 14 is a simplified side view of the hose attachment and cleaning attachment of FIG. 13;

FIG. 15 is a simplified side view of the hose attachment and cleaning attachment of FIGS. 3 and 4 interconnected by another alternative connecting structure;

FIG. 16 is a simplified side view of the hose attachment and cleaning attachment of FIG. 15;

FIG. 17 is an exploded view showing a hose attachment and a cleaning attachment according to another embodiment; and

figure 18 is a perspective view of the hose attachment and cleaning attachment of figure 17.

Detailed Description

Fig. 1 shows a cleaning device 100, which is designed as a pressure cleaning device in an exemplary manner and has a housing 110. In the housing 110, a pressure generating unit 120 for pressure-loading the fluid is preferably arranged.

According to one embodiment, the pressure cleaning device 100 is designed in the manner of a low-pressure cleaning device, wherein the pressure generating unit 120 is designed to generate a maximum operating pressure of less than 25 bar, preferably less than 20 bar and particularly preferably less than 15 bar. The low-pressure cleaning device can preferably be operated without nozzle spacer elements, in particular without long rods. Alternatively or additionally, however, the pressure cleaning appliance 100 can also be designed as a high-pressure cleaning appliance.

Such a preferably multifunctional pressure cleaning device 100 may be applied in various fields, especially in light to moderate cleaning tasks, for example for cleaning items such as vehicles, e.g. cars, bicycles, especially mountain bikes, and/or for cleaning toys, especially children's toys, and/or for cleaning clothing, e.g. boots, especially rubber boots, and/or for cleaning work implements, especially garden implements, e.g. shovels, shovels etc., and/or for cleaning domestic animals, e.g. horses, dogs or similar animals. Furthermore, the pressure cleaning appliance 100 can also be used in gardens, for example for watering plants, and/or in camping, for example as a moving shower. It should be noted that the illustrated application possibilities have only exemplary features and should not be considered as limiting the invention, i.e. the pressure cleaning device 100 can also be used in any other application.

Preferably, the pressure generating unit 120 has a motor, not shown. The motor is preferably designed as an internal combustion engine and/or as an electric motor. In the case of an electric motor, a battery pack can be provided for network-independent current supply and/or a cable connection can be provided for network-dependent current supply. Preferably, the motor is configured as an electric motor equipped with a battery pack.

Furthermore, the pressure cleaning appliance 100 preferably has at least one, in the illustration two, wheel 114 for forward movement on any floor surface. Preferably, the wheels 114 are configured so as to be able to move about a field, for example in a garden or the like. The wheels 114 enable a safe standing and thus a safe operation with a preferably stable configuration. In order to safely grasp the pressure cleaning device 100, the housing 110 is preferably provided with at least one handle 112. Preferably, the handle 112 is retractable. Alternatively or optionally, the pressure cleaning apparatus 100 has at least one carrying handle configured for carrying the pressure cleaning apparatus 100 in the type of a bag and/or backpack.

Furthermore, the pressure cleaning apparatus 100 preferably has at least one fluid tank 116. According to one embodiment, the fluid tank 116 is fixedly connected to the housing 110. However, according to another embodiment, the fluid reservoir 116 may be removably configured from the housing 110 such that the fluid reservoir is removable, for example, for filling and/or cleaning the housing 110. Alternatively or optionally, the pressure cleaning apparatus 100 may also be supplied with a corresponding fluid by an external fluid source, such as a lake, stream, faucet, etc. For this purpose, a connecting element, for example a connecting adapter, is preferably arranged on the housing 110, by means of which the pressure cleaning appliance 100 can be connected to an external fluid source for receiving the fluid. Furthermore, alternatively or optionally, a further fluid tank and/or a further connecting element for a cleaning fluid, for example a cleaning agent, may be provided.

The pressure cleaning appliance 100 preferably has an operating unit 118, which operating unit 118 has at least one on/off operating element 119, which is designed to activate and/or deactivate or open and/or close the pressure cleaning appliance 100. Furthermore, the operating unit 118 can also be designed, for example, to set selectable operating modes, operating pressures, motor speeds and/or any other desired parameters, in particular drive parameters. Alternatively or optionally, the operating unit 118 can also be equipped with a display device integrated in the housing 110. Furthermore, alternatively or optionally, the operating unit 118 can also be configured externally, wherein the operation of the pressure cleaning appliance 100 can be performed, for example, by a smartphone, a tablet computer or the like.

Furthermore, the pressure cleaning device 100 is preferably connectable to a hose attachment 150 via a hose 140 for adjustable discharge of the pressure-loaded fluid. The hose 140 is adapted to the maximum possible operating pressure of the pressure cleaning appliance 100. The hose 140 can be configured here preferably in the manner of a high-pressure hose for a high-pressure cleaning appliance and/or preferably in the manner of a low-pressure hose for a low-pressure cleaning appliance, for example a garden hose. The hose 140 can be wound on the housing 110 manually or preferably by an automatic winding device. Furthermore, the hose 140 may also be constructed in accordance with the type of a spiral hose. In this case, the end of the hose 140 facing the pressure cleaning appliance 100 can be fixedly connected to the pressure cleaning appliance 100 or can be releasably arranged on the pressure cleaning appliance 100. In the illustration, the hose 140 is arranged releasably on the coupling element 124 of the pressure cleaning appliance 100. Furthermore, similar to this, the hose attachment 150 can be fixedly connected to the hose 140 or can be releasably connected thereto, preferably by means of a coupling part 154.

According to one embodiment, the hose attachment 150 has a housing 152, a device 160 for adjusting at least two different fluid jet types and/or an operating element 153 for activating the fluid discharge. Preferably, the hose attachment 150 is constructed in the manner of a hand-held spray gun, wherein the housing 152 is constructed pistol-shaped. It should be noted, however, that the configuration of the hose attachment 150 in the manner of a hand-held gun is merely an exemplary feature and should not be considered as limiting the invention. Thus, the hose attachment 150 may also have a tubular housing 152 and/or be configured as a cleaning sprayer. It should be noted that such a cleaning jet is preferably applied directly on the hose 140, which is preferably configured as a garden hose. Here, the pressure generating device 100 for pressure application of the fluid is not absolutely necessary in applications using a cleaning injector.

The device 160 is preferably configured for discharging fluid, preferably pressure-loaded by the pressure generating unit 120. The device 160 is designed for setting at least two different fluid jet types, wherein the device 160 preferably has a nozzle head and/or a nozzle selection head or is designed accordingly. The device 160 has at least one nozzle, preferably and in particular at least two different nozzles (162,164,168 in fig. 2), for selectively discharging at least two different fluid jet types. Preferably, the device 160 is provided in particular with at least two different nozzles (162,164,168 in fig. 2), wherein each of the at least two different nozzles (162,164,168 in fig. 2) is provided with one of the at least two different fluid jet types. Preferably, the different fluid jet types are configured as fan-shaped jets, point-shaped jets and/or spherical jets. However, other fluid jet types may also be applied, for example free-flow jets, i.e. substantially unregulated fluid jets which leave the hose attachment 150 with less pressure according to the type of spray jet or rain jet, and/or combined fluid jet types which may preferably consist of at least two fluid jet types, i.e. for example a radially outer spray jet and a radially inner point jet.

The selected fluid jet type is preferably set by rotating, in particular twisting, the device 160 or the nozzle head. Preferably, nozzles assigned to the selected fluid jet type are arranged here at the fluid outflow opening (170 in fig. 2), whereby the selected nozzles are subjected to fluid loading. Furthermore, it is also possible to provide nozzles for forming at least two different fluid jet types, wherein the nozzles are designed, for example, as baffles and the setting of the at least two different fluid jet types can be set by setting the distance of the baffles from the fluid outlet. Such a nozzle is preferably used in the cleaning jet described above.

Fig. 2 shows the hose attachment 150 of fig. 1, which is preferably designed as a handheld spray gun and which is referred to below for simplicity of illustration as handheld spray gun 150. Fig. 2 shows a device 160, preferably in the form of a nozzle head, for setting different fluid jet types. Further, fig. 2 illustrates a fluid outlet 170 of the handheld spray gun 150, which is preferably disposed at the 12 o' clock position of the nozzle tip 160. It should be noted, however, that the fluid outlet 170 may be arranged in any other position of the nozzle head 160.

Furthermore, FIG. 2 shows that the nozzle head 160 has preferably at least two, in the illustration four nozzles 162,164,166, 168. Here, the nozzles 162 are preferably designed for forming a cone beam, the nozzles 164 for forming a spray beam, the nozzles 166 for forming a free-flow beam, i.e. for example a spray beam, and the nozzles 168 for forming a fan beam. It should be noted, however, that the nozzle may also be used to form additional fluid jet types. Further, it should be noted that the configuration of the nozzle tip 160 having four nozzles 162,166,166,168 in the illustration is merely an exemplary feature and should not be considered a limitation of the present invention. Thus, the nozzle tip 160 may also have fewer or more than four nozzles 162,164,166, 168. Furthermore, the arrangement of the preferably four nozzles 162,164,166,168 is likewise exemplary and should not be considered as limiting the invention. That is, the nozzles 162,164,166,168 may also be arranged in any other order or arrangement along the circumferential direction of the nozzle tip 160.

Preferably, the desired fluid jet type is set by rotating, in particular twisting, the nozzle head 160 relative to the handheld spray gun 150, as explained above. It should be noted, however, that the adjustment may also be performed by any other movement, for example by a linear movement and/or a radial movement of a respective selected one of the nozzles 162,164,166,168 in front of the fluid outlet 170.

Fig. 3 shows the handheld spray gun 150 of fig. 1 and 2 with the cleaning attachment 200 according to the invention, the cleaning attachment 200 and the handheld spray gun 150 forming a cleaning system 300, for example. Preferably, the cleaning attachment 200 has a cleaning section 240 and a connecting section 220. Preferably, the cleaning section 240 and the connecting section 220 are integrally constructed. However, the cleaning section 240 and the connecting section 220 can also be designed in several parts and connected to one another, for example, by any desired connection, for example a screw connection.

Preferably, the cleaning attachment 200 is releasably fastened to the handheld spray gun 150 by means of a form-locking and/or force-locking structure 230, in particular a clamping connection. The connecting section 220 is preferably designed for releasable fastening to a hose fitting or a handheld spray gun 150. For this purpose, the handheld lance 150 has at least two retaining elements 212,214 on its end facing the nozzle head 160. The two holding elements 212,214 are preferably embodied diametrically opposite to one another, wherein the holding element 212 is preferably arranged in the region 295 illustrated in fig. 3 as being above or on the side of the housing 152 facing away from the actuating element 153, and the holding element 214 is preferably arranged in the region 296 illustrated in fig. 3 as being below or on the side of the housing 152 facing the actuating element 153.

The connecting section 220 preferably has two connecting elements 222,244 assigned to the retaining elements 212,214 for releasable connection to the handheld spray gun 150. The connecting elements 222,224 are preferably configured in a diametrically opposed manner in this case similarly to the retaining

elements

212, 214. The connecting section 220 is preferably designed to enable the device 160, which is preferably designed as a nozzle head, to be rotated for setting up different fluid jet types as described above in order to discharge at least two different fluid jet types. Preferably, the nozzle head 160 has at least one means 299, in particular a blocking element, on its outer circumference and/or on the cleaning attachment 200, which blocking element is designed to prevent at least one predefined fluid jet type from being set after the cleaning attachment 200 is fastened to the handheld spray gun 150. The blocking element 299 preferably at least prevents the setting of a fluid jet type configured as a free-flowing jet. Furthermore, a means, preferably a blocking element 299, is provided, which blocking element 299 is configured for preventing the cleaning attachment 200 from being arranged on the handheld lance 150 when the additional fluid jet type configured as a free-flowing jet is set. It should be noted that the means for preventing the placement of the handheld spray gun 150 when setting to the additional fluid jet type need not necessarily be the device 299 and may therefore be another device than the device 299.

Furthermore, the cleaning attachment 200, preferably the connecting section 220, has a receptacle 229 for the surrounding and/or guidable arrangement of the nozzle head 160. Here, the receptacle 229 is preferably designed as a guide aid for arranging the cleaning attachment 200 on the handheld spray gun 150. Preferably, the receiving portion 229 is conically configured. However, the nozzle head 160 can be rotated, preferably twisted, for setting the desired fluid jet type. Preferably, when the handheld spray gun 150 is arranged, the receptacle 229, in particular the region of the receptacle 229 facing the handheld spray gun 150, forms a seal (270 in fig. 4), which is preferably designed as a labyrinth seal. Here, the gap size of the labyrinth seal is preferably small. It should be noted, however, that the exemplary configuration of the seal as a labyrinth seal has merely exemplary features and should not be considered as limiting the invention.

Furthermore, the cleaning section 240 is preferably arranged at a predetermined angle (α in fig. 4) relative to the connecting section 220. Preferably, the predetermined angle (α in fig. 4) is greater than 90 °. Furthermore, the cleaning section 240 has, for example, an elongated shape, which preferably has a length greater than a width. Preferably, the cleaning section 240 has a rectangular or elliptical shape.

The cleaning attachment 200 is configured according to one embodiment as a cleaning brush, wherein the cleaning section 240 has bristles 242 which are preferably arranged on the holding section 241. In this case, bristles 242 may have different strengths, in particular at the ends 201,202 assigned to the longitudinal extension of cleaning section 240. However, bristles 242 may also have different strengths along their longitudinal extension.

The cleaning section 240 preferably has a slot 245, through which slot 245 fluid supplied to the cleaning attachment 200 can flow unimpeded in at least one, in particular in any of at least two fluid jet types. Preferably, the fluid flows out through the slot 245 unimpeded with each fluid jet type, wherein the setting of the free-flow jet is preferably prevented by the blocking element 299, as explained above.

Preferably, bristles 242 surround slots 245 of cleaning section 240. The slot 245 is preferably of oval design, and the outlet slots (250 in fig. 4) of the connecting section 220 associated with the slot 245 are preferably of round design. However, the slot 245 and the bleed slot (250 in fig. 4) may have any other shape, such as a rectangular shape.

Fig. 4 shows the cleaning system 300 of fig. 3 and illustrates the cleaning section 240, which is arranged at a predetermined angle α relative to the connecting section 220. Preferably, the angle α is greater than 90 °, in the illustration about 115 °. By virtue of the cleaning section 240 being arranged at an angle α at an angle to the connecting section 220 and thus to the longitudinal axis of the handheld lance 150, in particular the nozzle head 160, it is possible to wet and thus clean large surfaces with the cleaning section 240. In this case, unintentional spraying on the user can also be prevented, since the jet direction of the fluid is directed away from the user. Furthermore, the longitudinal axis of the cleaning section 240 is preferably configured parallel to the longitudinal axis of the handle of the handheld spray gun 150, thereby enabling a good ergonomic configuration of the cleaning system 300.

The cleaning attachment 200 preferably has a discharge slot 250 associated with the slot 245. The outlet slot 250 is preferably formed in the connecting section 220 or the receiving portion 229 and/or the retaining section 241 of the cleaning section 240 in such a way that fluid can pass through the outlet slot 250 into the slot 245 via the fluid outlet opening 170. Preferably, the outlet slots 250 are designed in such a way that the fluid can flow out in the region of the slots 245 which is located below in the illustration or at the end of the slots 245 which faces the first end 201 of the cleaning section 240. However, the outlet slots 250 can also be configured further up in the illustration or the slots 245 arranged further down in the illustration, so that the fluid can flow out centrally or at the region of the slots 245 situated above in the illustration or at the end of the slots 245 facing the second end 202 of the cleaning region 240.

Furthermore, fig. 4 shows a sealing section 270, preferably configured as a labyrinth sealing section, which is preferably formed by the axial abutment of the end of the nozzle head 160 facing the cleaning attachment 200 against the end of the receiving section 229 of the cleaning attachment 200 facing the handheld lance 150.

Figure 5 shows the cleaning attachment 200 of figures 3 and 4. Fig. 5 shows that the connecting section 220 is arranged at a bend on the cleaning section 240. Fig. 5 furthermore shows the connecting elements 222,224 of the connecting section 220 for forming a form-locking and/or force-locking structure 230. According to one embodiment, the connecting element 222 located above in the illustration is configured in the manner of a flat or straight clamping element and the connecting element 224 located below in the illustration is configured in the manner of a preferably at least approximately U-shaped guide element.

Fig. 6 shows the cleaning attachment 200 of fig. 2 to 5 and shows a preferably conical receptacle 229 with a discharge slot 250 and a sealing portion 270 preferably configured as a labyrinth seal. Fig. 6 furthermore shows a connecting element 222 in the form of a flat clamping element and a connecting element 224 in the form of a U-shaped guide element.

Fig. 7 shows a cleaning system 300 with the hand-held spray gun 150 of fig. 1 to 4 and the cleaning attachment 200 of fig. 3 to 6. Fig. 7 shows the form-locking and/or force-locking structure 230 of the connecting elements 222,224 with the

respective holding element

212, 214. In this case, the holding element 212 has a receptacle for the arrangement of the connecting element 222 and the holding element 214 has a guide section (287 in fig. 8) for guiding the connecting element 224.

Fig. 8 shows the holding element 214 and the connecting element 224 of fig. 7, wherein the U-shaped guide element 284 of the connecting element 224 is arranged on the guide rail 289. The guide element 284 rests with its slot 287 against the guide rail 289. Furthermore, the guide element 284 preferably has two opposing latching projections 286 which are received in corresponding latching notches 285 of the holding element 214. Here, the latching element 286 locks the cleaning attachment 200 to the handheld spray gun 150. However, the retaining element 214 may also have a slot for arranging and/or guiding the connecting element 224 or the guide element 284, wherein the guide element 284 engages with a latching element associated with the retaining element 214 for fastening the cleaning attachment 200 to the handheld spray gun 150.

To remove the cleaning attachment 200 from the handheld spray gun 150, the latching elements 286 are preferably first loaded, in particular, toward one another. Thereby, the latch element 286 unlocks the connection element 224 and the cleaning attachment 200 can be removed from the handheld spray gun 150.

Fig. 9 shows a cleaning system 300 with the hand-held spray gun 150 of fig. 1 to 4 and a cleaning attachment 200 with connecting elements 322,324 and associated holding elements 312,314 for forming a form-locking and/or force-locking structure 230, according to a further embodiment. Similar to the retaining elements 212,214 of fig. 3 to 8, the retaining elements 312,314 are preferably configured diametrically opposite or arranged on the regions 295,296 located above and below in the illustration. The holding elements 312,314 preferably have notches 318,319 for at least partially arranging connecting elements 322,324 assigned to the connecting section 220. In order to fasten the cleaning attachment 200 to the handheld spray gun 150, the connecting elements 322,324 are arranged in their associated

slots

318, 319. The connecting elements 322,324 are preferably designed as spring elements, wherein the spring elements are spring-loaded radially outward when arranged in the

notches

318, 319. Here, the blocking sections 328,329, which are preferably formed on the free ends of the connecting elements 322,324, respectively, prevent the cleaning attachment 200 from being unintentionally removed from the slots 318,319 or from being unintentionally removed from the handheld spray gun 150.

FIG. 10 illustrates the cleaning system 300 of FIG. 9 and illustrates the notches 318,319 of the retaining

elements

312, 314. Furthermore, FIG. 10 illustrates blocking sections 328,329 connecting

sections

322, 324. To remove the cleaning attachment 200 from the handheld spray gun 150, the blocking sections 328,329 are preferably loaded radially inward, whereby the connecting sections 322,324 can be unlocked and the cleaning attachment 200 can be removed from the handheld spray gun 150.

Fig. 11 shows a cleaning system 300 with the hand-held spray gun 150 of fig. 1 to 4 and a cleaning attachment 200 with connecting elements 422,424 for forming a form-locking and/or force-locking structure 230 and associated holding elements 412,414, according to a further embodiment. The holding element 412 located above in the illustration of fig. 11 is constructed analogously to the holding element 212 of fig. 6 and has a slot for the arrangement of the connecting element 422. Preferably, the connecting element 422 is configured as a flat clamping element, similar to the connecting element 222 of fig. 6. The holding element 414 is preferably constructed analogously to the holding element 314 with the slot and the connecting element 424 is preferably constructed as a U-shaped spring element 425.

Fig. 12 illustrates the cleaning system 300 of fig. 11 and illustrates a U-shaped spring member 425 configured in a buckle-type configuration. In this case, the spring elements 425 or the spring diaphragms associated with the spring elements 425 are spring-loaded in the notches of the holding elements 414 in the transverse direction of the connecting section 220 or away from one another. In this case, the spring elements 425 each have a blocking section 486 at the respective free end of the spring diaphragm. The blocking section 486 preferably prevents the spring element 425 from being unintentionally removed from the notch of the retaining element 414 or the cleaning attachment 200 from being unintentionally removed from the handheld spray gun 150. To remove the cleaning attachment 200 from the handheld spray gun 150, the blocking sections 486 or the spring diaphragms are loaded towards each other, thereby unlocking the connecting section 424 or the spring element 425 and allowing the cleaning attachment 200 to be removed from the handheld spray gun 150.

Fig. 13 shows a cleaning system 300 with the hand-held spray gun 150 of fig. 1 to 4 and a cleaning attachment 200 with connecting elements 522,524 for forming the form-locking and/or force-locking structure 230 and associated holding elements 512,514 according to a further embodiment. In this case, the holding element 512 located above in the illustration of fig. 13 is preferably constructed analogously to the holding element 312 of fig. 9 and has a slot for the arrangement of the connecting element 522. Preferably, the connecting element 522 is configured like the connecting element 322 of fig. 9 as a spring element with a blocking section 528. In addition, the retaining element 514 and the connecting element 524 are preferably configured similarly to the retaining element 414 and the connecting element 424 of FIG. 11. In contrast to fig. 1, however, the holding element 514 and the connecting element 524 are configured in the illustration as a lower connecting section or on the lower region 296.

Fig. 14 shows the cleaning system 300 of fig. 13 and shows a connecting element 522 preferably configured as a spring element with blocking sections 528 which are preferably spring-loaded radially outwards. To remove the cleaning attachment 200 from the handheld spray gun 150, the blocking section 528 is preferably loaded radially inward, preferably thereby unlocking the connecting section 522 and allowing the cleaning attachment 200 to be removed from the handheld spray gun 150.

Fig. 15 shows a cleaning system 300 with the hand-held spray gun 150 of fig. 1 to 4 and a cleaning attachment 200 with connecting elements 622,624 and associated holding elements 612,614 for forming a form-locking and/or force-locking structure 230, according to a further embodiment. The holding element 612 located above in the illustration of fig. 15 is here preferably of a similar design to the holding element 514 located below in the illustration of fig. 13 and has a slot for the arrangement of the connecting element 622. Preferably, the connecting element 624 and the retaining element 614 are configured analogously to the connecting element 522 located above in the illustration of fig. 13 with the blocking section 628 and the retaining element 512.

Fig. 16 shows the cleaning system 300 of fig. 15 and shows a connecting element 624, preferably configured as a spring element, having blocking sections 628, which are preferably spring-loaded radially outward. To remove the cleaning attachment 200 from the handheld spray gun 150, the blocking section 628 is preferably loaded radially inward, thereby unlocking the connecting section 624 and allowing the cleaning attachment 200 to be removed from the handheld spray gun 150.

Fig. 17 shows the cleaning system 300 of fig. 1-4 with a handheld spray gun 150 and a cleaning attachment 200, preferably configured for cleaning glass surfaces, according to another embodiment. The cleaning attachment 200 preferably has a connecting section 720, preferably having the connecting element 522 of fig. 13 and the connecting element 224 of fig. 6, and provided with the receptacle 229 and the discharge slot 250 of fig. 4. To this end, the handheld spray gun 150 has a holding element 512 of fig. 13 and a holding element 214 of fig. 6. It should be noted, however, that the configuration of the connecting element 522,224 and/or the retaining element 512,214 is merely an exemplary feature and should not be considered as limiting the invention. Thus, the connecting element and/or the holding element 512,214 can also be constructed in accordance with the connecting element and/or the holding element of the cleaning brush of fig. 3 to 16.

Furthermore, a cleaning section 740 is preferably provided, which cleaning section 740 is preferably of rectangular design and is of 90 ° twisted in the illustration in comparison with the cleaning section 240 of fig. 3 to 16. Furthermore, cleaning section 740 preferably simultaneously forms a holding part 741 for arranging cleaning elements 750.

Preferably, the cleaning elements 750 are configured in the manner of cleaning nonwovens, in particular cotton or microfiber nonwovens. However, it should be noted that the cleaning nonwoven 740 may also be any other nonwoven and/or may have other materials, such as synthetic fibers. The cleaning nonwoven 740 here, like the cleaning brush of fig. 3, has a slot 745 through which the fluid can preferably flow out unimpeded in any of at least two fluid jet types. In the illustration, the notch 745 is rectangular, however, may be oval or circular or have any other shape. Here, the cleaning nonwoven 750 is preferably secured to the cleaning zone 740 by means of interconnectable hook-and-loop elements 742,743, however, it should be noted that the cleaning nonwoven 750 may also be secured to the cleaning zone 740 in any other manner, for example by means of rubber rings.

Fig. 18 shows the cleaning system 300 of fig. 17 and illustrates an arrangement of the cleaning attachment 200 having a cleaning element 750 preferably configured to clean a non-woven fabric 750. However, it should be noted that the cleaning section 740 may also be configured rotatably relative to the connecting section 720, for example by means of a rotary joint.

Claims

1. A cleaning attachment (200) for a hose attachment (150) for the adjustable discharge of a fluid, characterized in that the cleaning attachment (200) has a cleaning section (240) and a connecting section (220), wherein the connecting section (220) is configured for releasable arrangement on the hose attachment (150) and is provided for enabling a device (160) of the hose attachment (150) for adjusting different fluid jet types to be twisted in order to discharge different at least two fluid jet types, and wherein the cleaning section (240) has a slot (245) through which the fluid can flow out unimpeded at least with one of the at least two fluid jet types.

2. A cleaning attachment according to claim 1, characterized in that the cleaning attachment (200) can be releasably secured to the hose attachment (150) by means of a form-locking and/or force-locking structure (230).

3. Cleaning attachment according to claim 1 or 2, characterized in that the connecting section (220) has a receptacle (229) for the surrounding and/or guidable arrangement of the devices (160) for setting up different fluid jet types.

4. A cleaning attachment according to claim 3, wherein the receiving portion (229) constitutes a sealing portion (270) when the hose attachment (150) is arranged.

5. Cleaning attachment according to claim 1 or 2, characterized in that the cleaning section (240) is arranged at a predetermined angle (α) with respect to the connecting section (220).

6. Cleaning attachment according to claim 1 or 2, characterized in that the connecting section (220) is configured such that the device (160) for setting up different fluid jet types can be rotated in order to select one of the at least two different fluid jet types.

7. Cleaning attachment according to claim 1 or 2, characterized in that the slot (245) of the cleaning section (240) is of oval design and the outlet slot (250) of the connecting section (220) associated with the slot (245) is of round design.

8. Cleaning attachment according to claim 1 or 2, characterized in that the cleaning zone (240) has a length which is greater than the width.

9. Cleaning attachment according to claim 1 or 2, characterized in that the cleaning section (240) has bristles (242).

10. Cleaning attachment according to claim 1 or 2, characterized in that the cleaning zone (240) has a cleaning nonwoven (740).

11. A cleaning attachment according to claim 1 or claim 2, wherein the hose attachment is a hand-held spray gun or a cleaning spray gun.

12. A cleaning attachment according to claim 1 or 2, characterised in that said device is a nozzle head or a nozzle selection head of said hose attachment (150).

13. A cleaning attachment according to claim 1 or 2, wherein fluid can flow unimpeded through the slot in either of the at least two fluid jet types.

14. A cleaning attachment according to claim 2, wherein the cleaning attachment (200) is releasably securable to the hose attachment (150) by a clip-on connection.

15. A cleaning attachment according to claim 4, characterised in that the region of the receiving portion (229) facing the hose attachment (150) constitutes a sealing portion (270).

16. A cleaning attachment according to claim 4, wherein the sealing portion is configured as a labyrinth seal.

17. A cleaning attachment according to claim 5, characterised in that the predetermined angle (α) is greater than 90 °.

18. Cleaning attachment in accordance with claim 6, characterized in that the rotation is performed by twisting the device (160) for setting different fluid jet types for fluid loading different nozzles (162,164,168).

19. Cleaning attachment according to claim 8, characterized in that the cleaning zone (240) has a rectangular or oval shape.

20. The cleaning attachment of claim 9 wherein said bristles have different strengths.

21. Cleaning attachment according to claim 9, characterized in that the bristles have different strengths at the ends (201,202) assigned to the longitudinal extension of the cleaning section (240).

22. The cleaning attachment of claim 10, wherein the cleaning nonwoven is configured as a cotton nonwoven or a microfiber nonwoven.

23. The cleaning attachment of claim 10, wherein the cleaning nonwoven is configured for cleaning a glass surface.

24. A hose attachment (150) for adjustable discharge of a fluid, with a garden hose and with a cleaning attachment (200) according to any one of claims 1 to 23, wherein the hose attachment (150) has a device (160) for setting up different fluid jet types in order to selectively discharge at least two different fluid jet types.

25. The hose attachment (150) of claim 24, wherein the hose attachment is provided with at least two different nozzles (162,164,168), wherein each of the at least two different nozzles (162,164,168) is assigned to one of the at least two different fluid jet types.

26. A pressure cleaning device (100) having a pressure generating unit (120) for pressure loading a fluid and a cleaning attachment (200) according to any of claims 1 to 23.

27. A pressure cleaning device (100) having a pressure generating unit (120) for pressure-loading a fluid and having a hose attachment (150) for the adjustable discharge of the pressure-loaded fluid, wherein the hose attachment (150) for the discharge of the fluid pressure-loaded by the pressure generating unit (120) has devices (160) for setting different fluid jet types, which are designed for the selective discharge of at least two different fluid jet types, characterized in that the hose attachment (150) is assigned a cleaning attachment (200) having a cleaning section (240) and a connecting section (220), wherein the connecting section (220) is designed for releasable arrangement on the hose attachment (150) and the cleaning section (240) has a slot (245), the fluid loaded under pressure can flow out through the slot unimpeded at least in one of the at least two fluid jet types.

28. Pressure cleaning device according to claim 26 or 27, which is constructed in the type of a low-pressure cleaning device, wherein the pressure generating unit (120) is constructed for generating a maximum operating pressure of less than 25 bar, and wherein the low-pressure cleaning device can be operated without a nozzle spacing element.

29. A pressure cleaning apparatus according to claim 26 or 27, characterized in that the at least two fluid beam types comprise a fan beam type, a spot beam type and/or a cone beam type.

30. A pressure cleaning device as claimed in claim 29, characterized in that the device (160) for setting different fluid jet types is designed for setting at least one additional fluid jet type in accordance with the free fluid jet type, and in that means (299) are provided which are designed to prevent setting of the fluid jet type designed as a free fluid jet after the attachment (200) has been fixed to the hose attachment (150).

31. A pressure cleaning device according to claim 30, characterized in that means are provided which are configured for preventing the cleaning attachment (200) from being arranged on the hose attachment (150) when set to an additional fluid jet type configured as a free fluid jet.

32. A pressure cleaning device as claimed in claim 27, characterized in that the hose attachment (150) is a hand-held spray gun and/or a cleaning jet.

33. A pressure cleaning device as claimed in claim 27, characterized in that the hose attachment (150) has at least two different nozzles (162,164,168).

34. A pressure cleaning apparatus as claimed in claim 27, wherein fluid under pressure can flow unimpeded through the slot in either of the at least two fluid jet types.

35. A pressure cleaning apparatus as claimed in claim 28, wherein said maximum operating pressure is less than 20 bar.

36. A pressure cleaning apparatus as claimed in claim 28, wherein said maximum operating pressure is less than 15 bar.

37. A pressure cleaning apparatus as claimed in claim 28, wherein said nozzle spacing element is a long rod.

38. A pressure cleaning device as claimed in claim 30, characterized in that said means (299) is a blocking element.

39. A pressure cleaning device according to claim 30, characterized in that the means (299) are configured for preventing the cleaning attachment (200) from being arranged on the hose attachment (150) when set to an additional fluid jet type configured as a free fluid jet.