High-pressure cleaning appliance

Abstract

The invention relates to a high-pressure cleaning appliance, comprising: a high-pressure pump (10), by means of which a cleaning liquid in the high-pressure cleaning appliance (1) can be pressurized; a hose reel (20) which is mounted so as to be rotatable about a rotational axis (50); a reel hose (21) that can be wound onto and unwound from the hose reel (20); and a housing (2). The high-pressure pump (10) is arranged in the housing (2) and comprises at least one piston (11) which can be moved back and forth in a direction of movement (49) in order to generate pressure on the cleaning liquid. The high-pressure pump (10) has a central axis (48) extending in the direction of movement (49) of the at least one piston (11). During operation of the high-pressure cleaning appliance (1), cleaning liquid can be fed to the reel hose (21) by means of the high-pressure pump (10). The rotational axis (50) extends transversely to the direction of movement (49) of the at least one piston (11). The rotational axis (50) intersects the high-pressure pump (10).

Description

Technical Field

[0001] The invention relates to a high-pressure cleaning appliance. Background Art

[0002] The high-pressure cleaning appliances in the prior art usually occupy a large structural space. In recent years, the goal for designing high-pressure cleaning appliances is to design the high-pressure cleaning appliances in a light, compact and as portable as possible manner. Summary of the invention

[0003] The object of the present invention is to develop a high-pressure cleaning appliance of the generic type in such a way that it can be designed to be compact.

[0004] The object is achieved by a high-pressure cleaning appliance, which comprises a high-pressure pump, by means of which a cleaning fluid in the high-pressure cleaning appliance can be put under pressure; a hose reel, which is supported so as to be rotatable about a rotation axis; a reel hose, which can be wound onto the hose reel and unwound from the hose reel; and a housing, wherein the high-pressure pump is arranged in the housing, wherein the high-pressure pump comprises at least one piston, which can be moved back and forth in a movement direction for generating pressure on the cleaning fluid, wherein the high-pressure pump has a center axis extending in the movement direction of the at least one piston, wherein during operation of the high-pressure cleaning appliance, cleaning fluid can be conveyed to the reel hose by means of the high-pressure pump, wherein the rotation axis extends transversely to the movement direction of the at least one piston, and wherein the rotation axis intersects the high-pressure pump.

[0005] The present invention is based on the knowledge that in conventional high-pressure cleaning appliances, the arrangement of the high-pressure pump and the hose reel is disadvantageous. They are usually arranged so far apart from each other that a supply line from the high-pressure pump to the hose reel is necessary. This wastes structural space and material. Usually, the high-pressure pump and the drive of the high-pressure pump are arranged one after the other in the direction of movement of at least one piston of the high-pressure pump. The hose reel is also usually arranged behind the piston in the same direction, that is, in the direction of movement of at least one piston. Therefore, a lot of structural space is required, especially in the direction of movement of at least one piston of the high-pressure pump.

[0006] According to the invention, it is provided that the axis of rotation of the hose reel extends transversely, in particular perpendicularly, to the direction of movement of at least one piston. The hose reel and the high-pressure pump are arranged relative to one another in such a way that the axis of rotation of the hose reel intersects the high-pressure pump. This makes it possible to arrange the high-pressure pump and the hose reel very close to one another. As a result, no long connecting lines are required between the high-pressure pump and the hose reel. In addition, less structural space is occupied in the direction of movement of at least one piston of the high-pressure pump. This makes it possible to achieve a compact design of the high-pressure cleaning device.

[0007] In particular, the center axis of the high-pressure pump is the central axis of at least one piston. If the high-pressure pump comprises only a single piston, the center axis is the longitudinal center axis of the piston. If the high-pressure pump comprises a plurality of pistons, the center axis is the axis of symmetry with respect to the collection of all pistons. The pistons can be arranged, for example, on an imaginary circumferential line. The center axis then extends through the center point of the circumferential line. In this case, the center axis advantageously has the same distance relative to all pistons. The distance is measured perpendicular to the direction of movement of at least one piston. However, it can also be provided that the pistons are arranged in a row, in particular on an imaginary straight line. The center axis then extends through the straight line and divides the collection of all pistons into two halves of equal size along the straight line.

[0008] In a special design of the present invention, the high-pressure pump comprises a swash plate. The swash plate is supported in a manner that allows it to rotate around a plate rotation axis. Advantageously, the swash plate drives at least one piston of the high-pressure pump during operation of the high-pressure cleaning appliance. In particular, the center axis of the high-pressure pump extends coaxially with the plate rotation axis of the swash plate.

[0009] The high-pressure pump comprises in particular a pump input, which is also referred to as a liquid inlet. In particular, the pump input is designed such that liquid can enter the high-pressure pump through the pump input along the movement direction of at least one piston.

[0010] Advantageously, the rotation axis of the hose reel intersects the center axis of the high-pressure pump. In particular, the rotation axis of the hose reel and the center axis of the high-pressure pump are oriented perpendicularly to each other.

[0011] The hose reel has a reel distance relative to the central axis, measured in the direction of the axis of rotation of the hose reel. The high-pressure cleaning appliance has a maximum width measured in the direction of the axis of rotation. Advantageously, the reel distance is at most 55%, in particular at most 40%, in particular at most 30% of the maximum width. The hose reel is thus arranged with a small reel distance relative to the central axis. As a result, the high-pressure cleaning appliance is designed to be compact.

[0012] The hose reel has a reel width measured in the direction of the rotation axis of the hose reel. Advantageously, the reel width is at most 70%, in particular at most 55%. This makes it possible to achieve a compact design of the high-pressure cleaning appliance, in particular in a direction transverse to the center axis of the high-pressure pump, in particular in a direction perpendicular to the center axis of the high-pressure pump.

[0013] Advantageously, the drum width is at most 60%, in particular at most 50%, of the maximum width of the high-pressure cleaning device. As a result, the high-pressure cleaning device can be designed compactly, in particular with respect to a direction transverse to the central axis, in particular with respect to a direction perpendicular to the central axis.

[0014] In particular, the hose reel is arranged in the region of the outer wall of the housing. Advantageously, the hose reel is arranged outside the housing. However, it can also be provided that the hose reel is only partially covered by the outer wall of the housing. It can also be provided that the hose reel is arranged inside the housing.

[0015] In particular, the housing at least partially delimits the high-pressure cleaning appliance to the outside.

[0016] The high-pressure pump has a rigid matrix. The high-pressure cleaning apparatus has a rigid connecting element in particular. In particular, the connecting element is a component of the high-pressure pump. The connecting element is rigid relative to the flexible hose for guiding the cleaning liquid. In particular, the connecting element is a die-casting. Advantageously, the connecting element is arranged between the rigid matrix of the hose reel and the high-pressure pump in particular with respect to a direction transverse to the central axis, in particular with respect to a direction perpendicular to the central axis. In particular, the rigid connecting element is directly connected to the rigid matrix of the high-pressure pump. In particular, the rigid matrix and the rigid connecting element form a rigid structural unit of the high-pressure cleaning apparatus. In particular, the high-pressure cleaning apparatus has a liquid distributor. The liquid distributor is advantageously retained in the rigid connecting element. In particular, the rigid connecting element is arranged between the rigid matrix of the liquid distributor and the high-pressure pump in particular with respect to a direction transverse to the central axis, in particular with respect to a direction perpendicular to the central axis. Advantageously, the liquid distributor is provided for transferring the cleaning liquid to the hose reel, in particular the reel hose. In particular, the hose reel is rotatably supported on the liquid distributor. Advantageously, the high-pressure cleaning appliance is designed such that during operation of the high-pressure cleaning appliance, cleaning liquid can flow from the rigid base body of the high-pressure pump through the connecting element to the liquid distribution piece. In particular, no flexible guides, in particular no flexible hoses, are arranged between the liquid distribution piece and the high-pressure pump. In particular, no flexible guides, in particular no flexible hoses, are arranged between the liquid distribution piece and the base body of the high-pressure pump.

[0017] In an advantageous development of the invention, it is provided that the high-pressure pump extends into the hose reel in a direction transverse to the central axis, in particular in a direction perpendicular to the central axis, in particular in the direction of the rotation axis of the hose reel. In particular, a connecting element of the high-pressure pump extends into the hose reel in a direction transverse to the central axis, in particular in a direction perpendicular to the central axis, in particular in the direction of the rotation axis of the hose reel. This makes it possible to achieve a particularly compact design of the high-pressure cleaning appliance. The connecting element can be designed to be relatively short and, due to the extension of the connecting element into the hose reel, additional installation space can be saved.

[0018] Advantageously, the high pressure pump overlaps the hose reel in a direction transverse to the central axis, in particular perpendicular to the central axis, in particular in a direction of the rotational axis, over at least 30% of the reel width. In particular, the connecting element overlaps the hose reel in a direction transverse to the central axis, in particular perpendicular to the central axis, in particular in a direction of the rotational axis, over at least 30% of the reel width.

[0019] Advantageously, the hose reel has, on its outer side facing the interior of the high-pressure pump, a receiving space which is located radially inward with respect to the rotation axis. In particular, the receiving space extends from the rotation axis with respect to a radial direction relative to the rotation axis. In particular, the receiving space is designed to receive a cleaning supply line which is used to mix a cleaning agent into the cleaning liquid. This also enables a compact design of the high-pressure cleaning appliance.

[0020] The receiving space has a maximum diameter measured perpendicularly to the rotation axis, in particular radially relative to the rotation axis. In particular, the maximum diameter is greater than the diameter of the liquid distribution element measured in a direction perpendicular to the rotation axis, in particular radially relative to the rotation axis. As a result, the receiving space provides sufficient space for receiving the clean supply line.

[0021] In particular, the connecting element comprises a cleaning supply opening for mixing cleaning agent into the cleaning liquid. The cleaning supply opening is advantageously arranged in the connecting element. In particular, the cleaning supply opening is arranged in the region of the hose reel with respect to the direction of the axis of rotation. As a result, cleaning agent can be easily mixed with the cleaning liquid even in the case of a compact design of the high-pressure cleaning appliance.

[0022] Advantageously, the high-pressure cleaning appliance comprises a battery pack. In particular, the battery pack is the only energy source of the high-pressure cleaning appliance. In particular, the high-pressure cleaning appliance is a battery high-pressure cleaner.

[0023] In particular, the high-pressure cleaning appliance is portable. In particular, the high-pressure cleaning appliance does not have wheels.

[0024] In particular, the battery pack is used to supply energy to the drive device of the high-pressure pump. Advantageously, the high-pressure cleaning appliance has a battery tank for receiving the battery pack. Advantageously, the battery tank and the hose reel overlap each other at least partially with respect to the direction of the rotation axis. In particular, the battery tank and the high-pressure pump overlap each other at least partially with respect to the direction of the rotation axis. Advantageously, the high-pressure pump, the drive device for the high-pressure pump and the battery tank are arranged successively with respect to the direction of the central axis, in particular with respect to the direction of movement. By this arrangement, the high-pressure cleaning appliance can be constructed very compactly. In particular, the high-pressure cleaning appliance has a handle. The high-pressure cleaning appliance can be carried by means of the handle. Advantageously, the components of the high-pressure pump, the hose reel and the battery pack are arranged in such a way that the center of gravity of the high-pressure cleaning appliance is below the handle. As a result, the high-pressure cleaning appliance can be carried comfortably.

[0025] In an advantageous development of the invention, the hose reel forms part of the outer contour of the high-pressure cleaning appliance. In particular, the hose reel projects beyond the outer contour of the housing in a direction transverse to the central axis, in particular in a direction perpendicular to the central axis, in particular in the direction of the axis of rotation, by less than 35% of its reel width. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The embodiments of the present invention are described below with reference to the accompanying drawings.

[0027] Figure 1 shows a perspective view of a high-pressure cleaning appliance,

[0028] Figure 2 Shown from above Figure 1 A top view of the high pressure cleaning appliance in FIG.

[0029] Figure 3 Shows Figure 1 A side view of a high pressure cleaning appliance in FIG.

[0030] Figure 4 Shown along Figure 3 The cross-sectional view of the section along the cutting line IV-IV in FIG.

[0031] Figure 5 Shown along Figure 4 A three-dimensional cross-sectional view of the section along the cutting line VI-VI in FIG.

[0032] Figure 6 Shown along Figure 4 The cross-sectional view of the section along the cutting line VI-VI in FIG.

[0033] Figure 7 Shown along Figure 4 A cross-sectional view of the section along the cutting line VII-VII in FIG.

[0034] Figure 8 Shown along Figure 4 A cross-sectional view of the section along the cutting line VIII-VIII in FIG.

[0035] Fig. 9 Shows Figure 1 A three-dimensional illustration of a high-pressure pump of a high-pressure cleaning appliance and a drive device of the high-pressure pump,

[0036] Fig.10 Shows Figure 1 A three-dimensional illustration of a high-pressure pump, a drive device of the high-pressure pump and a hose reel of a high-pressure cleaning appliance,

[0037] Fig.11 Shows Figure 1 a perspective view of a hose reel and a reel hose of a high-pressure cleaning appliance, and

[0038] Fig.12 Shown along Figure 4 A cross-sectional view of the section along the bent cutting line XII-XII. DETAILED DESCRIPTION

[0039] Figure 1 A high-pressure cleaning device 1 is shown. The high-pressure cleaning device 1 is designed to clean objects with a cleaning liquid under pressure. In the present embodiment, the high-pressure cleaning device 1 can be carried. The high-pressure cleaning device 1 has a handle 7. The high-pressure cleaning device 1 can be carried on the handle 7. In proper operation, it is provided that the high-pressure cleaning device 1 is laid down. In the present embodiment, the high-pressure cleaning device 1 is a battery high-pressure cleaner.

[0040] The high-pressure cleaning device 1 has a housing 2. The housing 2 at least partially delimits the high-pressure cleaning device 1 to the outside. The high-pressure cleaning device 1 has a hose reel 20. Figures 1 to 4 As shown in FIG. 1 , the hose reel 20 is mounted so as to be rotatable about an axis of rotation 50. The high-pressure cleaning appliance 1 comprises a reel hose 21. The reel hose 21 can be wound onto the hose reel 20 and unwound from the same. The reel hose can be wound onto the hose reel 20 and unwound from the same. A high-pressure pump 10 is arranged in the housing 2, which is, for example, Figure 4 . The cleaning liquid in the high-pressure cleaning device 1 can be put under pressure by means of the high-pressure pump 10. The cleaning liquid can be put under a pressure of at least 10 bar, in particular at least 15 bar, in particular at least 30 bar, in particular at least 100 bar by means of the high-pressure pump 10. In particular, the cleaning liquid can be put under a pressure of at most 600 bar, in particular at most 500 bar, by means of the high-pressure pump 10. The high-pressure pump 10 comprises at least one piston 11. In Figure 4Schematically shown in FIG. 4 is at least one piston 11. The at least one piston 11 can be reciprocated along a movement direction 49 for generating pressure on the cleaning fluid. In the present exemplary embodiment, the high-pressure pump 10 comprises three pistons 11.

[0041] The high-pressure pump has a center axis 48 extending along the direction of movement 49 of at least one piston 11. The center axis 48 is the central axis of the high-pressure pump 10. In particular, the center axis 48 of the high-pressure pump 10 is the center axis of at least one piston 11. If the high-pressure pump 10 includes only a single piston 11, the center axis 48 is the longitudinal center axis of the piston. In the present embodiment, the high-pressure pump 10 includes a plurality of pistons 11. In this case, the center axis 48 extends in the middle of the plurality of pistons 11. The center axis 48 is an axis of symmetry with respect to the set (Menge) of all pistons 11. As Figure 8 As shown in FIG. 1 , the piston 11 can be arranged on an imaginary circumferential line 17. The imaginary circumferential line is Figure 8 17 is indicated by a dashed line. The pistons 11 are also schematically indicated by dashed lines. The center axis 48 extends through the center point of the circumferential line 17. In the present embodiment, the center axis 48 is at the same distance from all the pistons 11. This distance is measured perpendicularly, in particular in the radial direction, relative to the direction of movement 49 of at least one piston 11. However, it can also be provided that the pistons 11 are arranged in a row, in particular on an imaginary straight line. The center axis 48 then extends through the straight line and divides the collection of all the pistons 11 into two halves of equal size along the straight line. The center axis 48 is then in the middle of the total collection consisting of all the pistons 11. In this case, the center axis 48 can also extend through one of the pistons 11.

[0042] like Figure 4As shown in the figure, in the present embodiment, the high-pressure pump 10 comprises a swash plate 12. The swash plate 12 is supported in a manner that it can rotate around the plate rotation axis 47. The swash plate 12 drives at least one piston 11 of the high-pressure pump 10 during the operation of the high-pressure cleaning device 1. The swash plate 12 rotates around the plate rotation axis 47. In this case, the swash plate 12 pushes at least one piston 11 in the direction of the cleaning liquid. In this case, the cleaning liquid is placed under pressure in the piston chamber, which is not shown. The volume of the piston chamber is reduced by the movement of the piston 11 in the direction of movement 49 of the cleaning liquid. When at least one piston 11 moves toward the cleaning liquid, a reset element, such as a spring, which is not shown, is tensioned. Due to the reset force of the spring, at least one piston 11 is then pushed in the direction away from the cleaning liquid. Subsequently, the swash plate 12 ensures that at least one piston 11 moves in the opposite direction. The swash plate 12 has an inclined surface for abutting against the piston 11. The inclined surface extends obliquely relative to the plate rotation axis 47. A center axis 48 of the high-pressure pump 10 extends coaxially to the disk rotation axis 47 of the swash disk 12 . During operation of the high-pressure cleaning appliance 1 , cleaning fluid can be conveyed to the drum hose 21 by means of the high-pressure pump 10 .

[0043] The high-pressure pump 10 has an inlet valve, not shown. Cleaning fluid can enter the piston chamber through the inlet valve. In the present embodiment, an inlet valve is provided for each piston 11. The inlet valve is a check valve. If the cleaning fluid in the piston chamber is under pressure, the inlet valve is closed.

[0044] The high-pressure pump 10 has an outlet valve (not shown). The cleaning liquid can flow out of the piston chamber through the outlet valve and continue to flow, in particular, in the direction of the reel hose 21. In the present embodiment, an outlet valve is provided for each piston 11. The outlet valve is a check valve. The outlet valve prevents the reel hose 21 from flowing back into the piston chamber.

[0045] Especially Figure 4 , the rotation axis 50 of the hose reel 20 extends transversely to the movement direction 40 of the at least one piston 11. In particular, the rotation axis 50 extends perpendicularly to the movement direction 49 of the at least one piston 11. The rotation axis 50 of the hose reel 20 intersects the high-pressure pump 10.

[0046] The high-pressure pump 10 comprises a base body 13. At least one piston 11 is arranged in the base body 13. The high-pressure pump 10 comprises at least one piston 11. Each piston 11 is provided with a piston chamber in which a cleaning fluid can be placed under pressure. Each piston chamber is provided with an inlet valve not shown. Each piston chamber is provided with an outlet valve not shown. The inlet valve is a component of the high-pressure pump 10. The outlet valve is a component of the high-pressure pump 10. The piston chamber is a component of the high-pressure pump 10. The inlet valve is held in the base body 13. The outlet valve is held in the base body 13. The component that causes the at least one piston 11 to reciprocate along the direction of movement 49 is a component of the high-pressure pump 10. In the present embodiment, the swash plate 12 is a component of the high-pressure pump 10. It can also be provided that the reciprocating motion of the at least one piston 11 is caused by a crankshaft. In this case, the crankshaft is a component of the high-pressure pump 10. The shaft 14 belongs to the swash plate 12. The high-pressure pump 10 comprises a shaft housing 15. The shaft 14 is rotatably mounted in the same housing 15 . If at least one piston 11 is driven by a crankshaft for a reciprocating movement in the direction of movement 49 , the crankshaft is rotatably mounted in the shaft housing 15 .

[0047] The high-pressure cleaning appliance 1 comprises a drive device 5. The drive device 5 is used to drive the high-pressure pump 10. The drive device 5 is not a component of the high-pressure pump 10. In the present embodiment, the drive device 5 is an electric motor. In particular, the drive device 5 is a DC motor. In particular, the drive device 5 is a brushless DC motor. A brushless DC motor is also called an EC motor.

[0048] The high-pressure pump 10 comprises an inlet sleeve 16. Cleaning liquid can enter the base body 13 of the high-pressure pump 10 through the inlet sleeve 16. The inlet sleeve 16 is fixed to the base body 13. The inlet sleeve 16 is especially fixed directly to the base body 13. The inlet sleeve 16 is rigid. The inlet sleeve 16 does not include a flexible element, such as a flexible hose. The inlet sleeve 16 is especially a die-casting. A flexible hose for inputting cleaning liquid can be connected to the inlet sleeve 16. For this purpose, a coupling 8 is provided in the present embodiment. The coupling 8 is not a component of the high-pressure pump 10. The hose for inputting cleaning liquid can be plugged into the coupling 8 by means of a matching counterpart coupling. However, it can also be provided that the hose for inputting cleaning liquid is fastened to the inlet sleeve 16 by means of a clamp or the like. The cleaning liquid is guided from the inlet sleeve to at least one inlet valve of the piston chamber of at least one piston 11. In the present embodiment, the cleaning liquid is guided from the inlet sleeve 16 to multiple inlet valves of multiple pistons 11. The inlet sleeve 16 is a common cleaning fluid inlet for all pistons 11 of the high-pressure pump 10 . The inlet sleeve 16 extends in the direction of movement 49 . The inlet sleeve 16 projects beyond the base body 13 of the high-pressure pump 10 in the direction of movement 49 away from the shaft housing 15 .

[0049] The high-pressure pump 10 comprises a connecting element 30. The connecting element 30 is also referred to as the pump output of the high-pressure pump 10. The connecting element 30 is a common output for the cleaning fluid flowing out of the outlet valves of the plurality of pistons 11. The connecting element 30 is rigidly constructed. The connecting element 30 is fixed to the base 13 of the high-pressure pump 10. The connecting element 30 is especially directly fixed to the base 13 of the high-pressure pump 10. The connecting element 30 does not include a flexible hose. In the present embodiment, the connecting element 30 is a die-casting. The connecting element 30 is integrally constructed. The connecting element 30 extends in a direction that is transverse to the direction of movement 49, especially perpendicular to the direction of movement 49, especially radially relative to the center axis 48.

[0050] The high-pressure cleaning device 1 comprises a liquid distributor 3. The liquid distributor 3 connects a connecting element 30 directly to a hose drum 20, in particular to a drum hose 21. The hose drum 20 is rotatably supported on the liquid distributor 3. Cleaning liquid is guided into the drum hose 21 through the liquid distributor 3. The liquid distributor 3 is held in a rigid connecting element 30 of a high-pressure pump 10. The liquid distributor 3 is rigid. The liquid distributor 3 does not include a flexible hose. The rigid connecting element 30 is directly connected to the rigid base 13 of the high-pressure pump 10. During operation of the high-pressure cleaning device 1, cleaning liquid can flow from the base 13 of the high-pressure pump 10 through the connecting element 30 of the high-pressure pump 10 to the liquid distributor 3. The liquid distributor 3 is not a component of the high-pressure pump 10. The high-pressure pump 10 does not include a flexible inlet or outlet pipe for cleaning liquid, for example in the form of a hose.

[0051] In the present exemplary embodiment, the hose reel 20 is arranged relative to the high-pressure pump 10 such that the rotation axis 50 of the hose reel 20 intersects the center axis 48 of the high-pressure pump 10. In particular, the rotation axis 50 of the hose reel 20 and the center axis 48 of the high-pressure pump 10 are oriented perpendicularly to one another. The rotation axis 50 of the hose reel 20 extends in particular radially relative to the center axis 48 of the high-pressure pump 10.

[0052] If the high-pressure cleaning device 1 is placed on a horizontal surface with a placement surface provided for this purpose, the rotation axis 50 of the hose reel 20 extends parallel to the horizontal plane in this embodiment. If the high-pressure cleaning device 1 is placed on a horizontal surface with a placement surface provided for this purpose, the central axis 48 extends parallel to the horizontal plane.

[0053] like Fig.11As shown in , the hose reel 20 comprises a first edge side wall 24. The hose reel 20 comprises a second edge side wall 25. The first edge side wall 24 is spaced apart from the second edge side wall 25 in the direction of the rotation axis 50 of the hose reel 20. A receiving space for the reel hose 21 is formed between the edge side walls 24 and 25. The reel hose 21 is wound or wrapped between the edge side walls 24 and 25. As shown in Fig.10 As can be seen in the perspective view in FIG. 2 , the first edge side wall 24 is arranged closer to the high-pressure pump 10 than the second edge side wall 25 . The first edge side wall 24 is placed inwardly. The first edge side wall 24 faces the high-pressure pump 10 .

[0054] The liquid distribution element 3 is arranged closer to the second edge side wall 25 than to the first edge side wall 24 in relation to the direction of the rotation axis 50. The liquid distribution element 3 is arranged in the region of the second edge side wall 24 in relation to the direction of the rotation axis 50.

[0055] like Figure 4 , Figure 8 and Fig.12 , the hose reel 20 has a reel distance a relative to the center axis 48 of the high-pressure pump 10, measured in the direction of the rotation axis 50 of the hose reel 20. In particular, the reel distance a between the hose reel 20 and the center axis 48 corresponds to the distance between the center axis 48 and the first edge side wall 24, measured in the direction of the rotation axis 50. The hose reel 20 comprises only parts that can rotate about the rotation axis 50.

[0056] like Figure 4 and Figure 8 As shown in , the high-pressure cleaning appliance 1 has a maximum width b measured in the direction of the rotation axis 50 of the hose reel 20. When determining the maximum width b, all components of the high-pressure cleaning appliance 1 are taken into account. The drum distance a is at most 50%, in particular at most 40%, in the present embodiment at most 30% of the maximum width b. The drum distance a is at least 10%, in the present embodiment at least 20% of the maximum width b.

[0057] like Figure 4 As shown in , the housing 2 has a maximum inner width h measured in the direction of the rotation axis 50 of the hose reel 20. The reel distance a is at most 50%, in the present embodiment at most 40%, of the maximum inner width h. The reel distance a is at least 20%, in the present embodiment at least 30%, of the maximum inner width h.

[0058] The hose reel 20 has Figure 4 and Figure 8 The reel width c shown in FIG. 1 is measured in the direction of the rotation axis 50 of the hose reel 20 . When determining the reel width c, all components of the hose reel 20 are taken into account. Figure 1 As shown in , the hose reel 20 comprises a crank pin 26. The crank pin 26 is a component of the hose reel 20. The crank pin 26 is taken into account when determining the reel width c. In the present exemplary embodiment, the reel width c is measured from the side of the first edge side wall 24 facing the high-pressure pump 10 to the outer longitudinal end of the crank pin 26.

[0059] The roll distance a is at most 70%, in particular at most 60%, in the present exemplary embodiment at most 55%, of the roll width c.

[0060] The drum width c is at most 60%, in the present exemplary embodiment at most 50%, of the maximum width b of the high-pressure cleaning appliance 1 .

[0061] The drum width c is at least 30%, in the present exemplary embodiment at least 40%, of the maximum width b of the high-pressure cleaning appliance 1 .

[0062] The roll width c is at most 80%, in the present exemplary embodiment at most 70%, of the maximum inner width h of the housing 2 .

[0063] The roll width c is at least 40%, in the present exemplary embodiment at least 50%, of the maximum inner width h of the housing 2 .

[0064] The high-pressure pump 10 has a pump width e measured in the direction of the axis of rotation 50 of the hose reel 20. Figure 4 and Figure 8 The pump width e of the high-pressure pump 10 is at least 40%, in the present embodiment at least 50%, of the maximum width b of the high-pressure cleaning appliance 1. The pump width e is at most 70%, in the present embodiment at most 60% of the maximum width b.

[0065] The pump width e of the high-pressure pump 10 is at least 70%, in the present embodiment at least 80%, of the maximum inner width h of the housing 2 of the high-pressure cleaning appliance 1. The pump width e is at most 95%, in the present embodiment at most 90% of the maximum inner width h.

[0066] The connecting element 30 has a connecting width f measured in the direction of the rotation axis 50 of the hose reel 20, such as Figure 4 and Figure 8 The connection width f is at least 15%, in the present embodiment at least 25%, of the maximum width b of the high-pressure cleaning device 1. The connection width f is at most 45%, in the present embodiment at most 35%, of the maximum width b of the high-pressure cleaning device 1.

[0067] Especially Figure 4 and Figure 8As shown in the figure, no flexible guide, in particular no flexible hose, is arranged between the liquid distributor 3 and the high-pressure pump 10, in particular between the liquid distributor 3 and the base body 13 of the high-pressure pump 10. This expression refers to the components of the high-pressure cleaning appliance 1 that participate in guiding the cleaning liquid from the high-pressure pump 10 to the liquid distributor 3. All these components are rigidly designed. In the present exemplary embodiment, all these components, except the sealing ring and the threaded element, are die-cast components.

[0068] The connecting element 30 extends into the hose reel 20 in the direction of the rotation axis 50. The high-pressure pump 10, in particular the connecting element 30, overlaps the hose reel 20 with respect to the direction of the rotation axis 50 of the hose reel 20. The hose reel 20 overlaps the high-pressure pump 10, in particular the connecting element 30 of the high-pressure pump 10. The high-pressure pump 10, in particular the connecting element 30, overlaps the hose reel 20 with respect to the direction of the rotation axis 50 over a range of at least 30% of the reel width c.

[0069] The hose reel 20 has a receiving space 23 on its outer side 22 facing the interior of the high-pressure pump 10. This is particularly true in Fig.10 and Fig.11 The inner outer side 22 is formed by the first side wall 24. The inner outer side 22 is the outer side of the first side wall 24. The receiving space 23 is located radially inwardly with respect to the rotation axis 50. Figure 4 and Figure 8 In this embodiment, the receiving space 23 is designed to receive a cleaning supply line 32. The cleaning supply line 32 is used to mix the cleaning agent into the cleaning liquid. Figure 8 and Fig.10 The cleaning supply line 32 is not a component of the connecting element 30 . The cleaning supply line 32 is not a component of the high-pressure pump 10 .

[0070] like Figure 4 As shown in FIG. 5 , the receiving space 23 has a maximum diameter d1 measured in a direction perpendicular to the rotation axis 50. The liquid distribution element 3 has a diameter d2 measured in a direction perpendicular to the rotation axis. The diameter d2 is the outer diameter of the liquid distribution element 3. The maximum diameter d1 of the receiving space 23 is greater than the diameter d2 of the liquid distribution element 3. The high-pressure pump 10, in particular the connecting element 30, has a clean supply opening 31, such as Figure 8. The cleaning supply opening 31 is used to mix cleaning agent into the cleaning liquid. The cleaning agent can be introduced into the high-pressure pump 10, in particular into the connecting element 30, through the cleaning supply opening 31. The cleaning supply opening 31 is arranged in the region of the hose reel 20 with respect to the direction of the axis of rotation 50 of the hose reel 20. The hose reel 20 overlaps the cleaning supply opening 31. It can be provided that the cleaning supply opening 31 is arranged in the region of the cross-sectional constriction for the cleaning liquid. This region is called a Venturi nozzle.

[0071] Especially if Figure 4 As shown, the hose reel 20 overlaps the high-pressure pump 10 with respect to the direction of movement 49 . In the present exemplary embodiment, the hose reel 20 completely overlaps the high-pressure pump 10 with respect to the direction of movement 49 . The high-pressure pump 10 is arranged completely in the region of the hose reel 20 with respect to the direction of movement 49 .

[0072] The hose reel 20 and the high-pressure pump 10 are arranged one behind the other with respect to the direction of the axis of rotation 50 of the hose reel 20. As seen in the direction of movement 49, the high-pressure pump 10 and the hose reel 20 are adjacent to one another.

[0073] The high-pressure cleaning appliance 1 comprises a battery pack 4. The battery pack Figures 4 to 7 The battery pack 4 is used to supply energy to the drive device 5 of the high-pressure pump 10. Figures 4 to 7 As shown in , the high-pressure cleaning appliance 1 includes a battery slot 6. The battery slot 6 is used to receive the battery pack 4. The battery pack 4 can be introduced into the battery slot 6 through the slot opening of the battery slot 6. The slot opening is closed around the introduction direction of the battery pack 4. In this embodiment, the battery slot 6 is arranged in the housing 2. In this embodiment, the battery pack 4 is arranged in the housing 2. Figure 4 As shown in , the battery compartment 6 at least partially overlaps with the hose reel 20 in the direction of the rotation axis 50 of the hose reel 20. The battery compartment 6 at least partially overlaps with the high-pressure pump 10 in the direction of the rotation axis 50 of the hose reel 20. Seen in the direction of movement, the battery compartment 6 overlaps not only with the high-pressure pump 10 but also with the hose reel 20. The battery compartment 6 and the high-pressure pump 10 are arranged one after the other in the direction of movement 49. The battery compartment 6 and the hose reel 20 are arranged one after the other in the direction of movement 49. The drive device 5 is arranged between the battery compartment 6 and the high-pressure pump 10 in the direction of movement 49. The drive device 5 is arranged in the housing 2. The high-pressure pump 10 is arranged in the housing 2. The high-pressure pump 10, the drive device 5 for the high-pressure pump 10 and the battery compartment 6 are arranged one after the other in the direction of the center axis 48, in particular in the direction of movement 49.

[0074] Especially in Figures 1 to 3As can be seen in the drawing, the hose reel 20 forms part of the outer contour of the high-pressure cleaning appliance 1. In particular, the second edge side wall 25 forms part of the outer contour of the high-pressure cleaning appliance 1. In particular, the reel hose 21 forms part of the outer contour of the high-pressure cleaning appliance 1. In the present embodiment, the hose reel 20, in particular the second edge side wall 25, continues the outer contour of the housing 2 of the high-pressure cleaning appliance 1.

[0075] In the present exemplary embodiment, the hose reel 20 is arranged outside the housing 2 .

[0076] The second edge side wall 25 faces away from the high-pressure pump 10 .

[0077] like Figure 4 As shown in FIG. 5 , the hose reel 20 projects beyond the outer contour of the housing 2 in the direction of the rotation axis 50 of the hose reel 20 by less than 35% of its reel width c.

[0078] The hose reel 20 has an edge width g. The edge width g is Figure 4 . The edge width g is measured in the direction of the rotation axis 50 of the hose reel 20. The edge width g corresponds to the maximum distance of the outer sides of the edge walls 24 and 25 relative to one another. The crank pin 26 does not belong to the second edge wall 25. When determining the edge width g, the retaining device of the second edge wall 25, which is arranged on the second edge wall 25, does not belong to the second edge wall 25. The second edge wall 25 projects beyond the outer contour of the housing 2 in the direction of the rotation axis 50 of the hose reel 20 by less than 10% of the edge width g, in the present exemplary embodiment by less than 5% of the edge width g.

[0079] like Figure 1 and Figure 4 As shown, a receptacle 9 for a hose reel 20 is formed by the housing 2. The receptacle 9 at least partially overlaps the hose reel 20 at its circumferential side. The receptacle 9 is formed by a first housing component of the housing 2. The first housing component is connected to a second housing component of the housing 2 to form a unit.

Claims

1. A high-pressure cleaning appliance, comprising: a high-pressure pump (10), by means of which the cleaning liquid in the high-pressure cleaning device (1) can be put under pressure, a hose reel (20) which is mounted so as to be rotatable about an axis of rotation (50), a reel hose (21) which can be wound onto the hose reel (20) and unwound from the hose reel, and - a housing (2), The high-pressure pump (10) is arranged in the housing (2), the high-pressure pump (10) comprising at least one piston (11) which can be moved back and forth in a direction of movement (49) for generating pressure on a cleaning fluid, the high-pressure pump (10) having a center axis (48) extending in the direction of movement (49) of the at least one piston (11), the cleaning fluid being able to be conveyed to the reel hose (21) by means of the high-pressure pump (10) during operation of the high-pressure cleaning appliance (1), The invention is characterized in that the rotation axis (50) extends transversely to the movement direction (49) of the at least one piston (11) and that the rotation axis (50) intersects the high-pressure pump (10).

2. The high-pressure cleaning appliance according to claim 1, It is characterized in that The rotation axis (50) of the hose reel (20) intersects the center axis (48) of the high-pressure pump (10).

3. The high-pressure cleaning appliance according to claim 1, It is characterized in that The rotation axis (50) of the hose reel (20) and the center axis (48) of the high-pressure pump (10) are oriented perpendicularly to one another.

4. The high-pressure cleaning appliance according to claim 1, It is characterized in that The hose reel (20) has a reel distance (a) relative to the central axis (48) measured in the direction of an axis of rotation (50) of the hose reel (20), the high-pressure cleaning appliance (1) has a maximum width (b) measured in the direction of the axis of rotation (50), and the reel distance (a) is at most 50% of the maximum width (b).

5. The high-pressure cleaning appliance according to claim 1, It is characterized in that The hose reel (20) has a reel width (c) measured in the direction of the rotation axis (50), and the reel distance (a) is at most 70% of the reel width (c).

6. The high-pressure cleaning appliance according to claim 1, It is characterized in that The drum width (c) is at most 60% of the maximum width (b) of the high-pressure cleaning appliance (1).

7. The high-pressure cleaning appliance according to claim 1, It is characterized in that The hose drum (20) is rotatably mounted on a liquid distribution piece (3), which is held in a rigid connecting element (30) which is directly connected to a rigid base body (13) of the high-pressure pump (10) and during operation of the high-pressure cleaning appliance (1), cleaning liquid can flow from the base body (13) through the connecting element (30) to the liquid distribution piece (3).

8. The high-pressure cleaning appliance according to claim 1, It is characterized in that No flexible guide is arranged between the liquid distribution element (3) and the high-pressure pump (10).

9. The high-pressure cleaning appliance according to claim 1, It is characterized in that No flexible guide is arranged between the liquid distribution element (3) and the base body (13) of the high-pressure pump (10).

10. The high-pressure cleaning appliance according to claim 1, It is characterized in that The high-pressure pump (10) projects into the hose reel (20) in the direction of the axis of rotation (50).

11. The high-pressure cleaning appliance according to claim 1, It is characterized in that A connecting element (30) of the high-pressure pump (10) projects into the hose reel (20) in the direction of the axis of rotation (50).

12. The high-pressure cleaning appliance according to claim 10, It is characterized in that The high-pressure pump (10) overlaps the hose reel (20) in the direction of the rotation axis (50) over at least 30% of the reel width (c).

13. The high pressure cleaning appliance according to claim 1, It is characterized in that The hose reel (20) has, on its outer side (22) facing the interior of the high-pressure pump (10), a receiving space (23) which is arranged radially inwardly with respect to the axis of rotation (50).

14. The high-pressure cleaning appliance according to claim 13, It is characterized in that The receiving space (23) is designed to receive a cleaning supply line (32) for mixing a cleaning agent with a cleaning liquid.

15. The high-pressure cleaning appliance according to claim 14, It is characterized in that The receiving space (23) has a maximum diameter (d1) measured in a direction perpendicular to the rotation axis (50), and the maximum diameter (d1) is greater than a diameter (d2) of the liquid dispensing member (3) measured in a direction perpendicular to the rotation axis (50).

16. The high-pressure cleaning appliance according to claim 7, It is characterized in that The connecting element (30) comprises a cleaning supply opening (31) for mixing a cleaning agent with a cleaning liquid.

17. The high-pressure cleaning appliance according to claim 16, It is characterized in that The cleaning supply opening (31) is arranged in the region of the hose reel (20) with respect to the direction of the axis of rotation (50).

18. The high pressure cleaning appliance according to claim 1, It is characterized in that The high-pressure cleaning appliance (1) comprises a battery pack (4) for supplying energy to a drive device (5) of the high-pressure pump (10), the high-pressure cleaning appliance (1) having a battery compartment (6) for receiving the battery pack (4), and the battery compartment (6) and the hose reel (20) at least partially overlap with each other with respect to the direction of the rotation axis (50).

19. The high-pressure cleaning appliance according to claim 18, It is characterized in that The battery container (6) and the high-pressure pump (10) at least partially overlap each other with respect to the direction of the rotation axis (50).

20. The high pressure cleaning appliance according to claim 1, It is characterized in that The high-pressure pump (10), a drive device (5) for the high-pressure pump (10) and the battery container (6) are arranged one behind the other in the direction of a central axis (48).

21. The high pressure cleaning appliance according to claim 1, It is characterized in that The hose reel (20) forms part of the outer contour of the high-pressure cleaning appliance (1).

22. The high pressure cleaning appliance according to claim 1, It is characterized in that The hose reel (20) projects beyond the outer contour of the housing (2) in the direction of the rotation axis (50) by less than 35% of its reel width (c).

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