Cleaning device

Abstract

A cleaning device comprising a cleaning device (2) and a carriage (3) for the cleaning device (2), wherein the carriage (3) comprises at least one wheel (4) on which the carriage (3) can be pushed, characterized in that the cleaning device (1) comprises a connecting device (10), that the cleaning device (2) can be connected to the carriage (3) by means of the connecting device (10), that a connection of the cleaning device (2) to the carriage (3) established by the connecting device (10) can be released without tools, that the connecting device (10) comprises a locking device (20) and a stop element (30), that the locking device (20) has a cleaner locking element (21) on the cleaning device (2) and a carriage locking element (22) on the carriage (3) corresponding to the cleaner locking element (21),that a stop element (30) is formed on the carriage (3) and serves as a stop for the cleaning device (2) when connecting the cleaning device (2) to the carriage (3), that the cleaning device (1) is designed such that the cleaning device (2) can be placed against the stop element (30) when connected to the carriage (3) and can be pivoted with a pivoting movement such that the cleaner locking element (21) and the carriage locking element (22) move relative to one another during the pivoting movement due to the contact of the cleaning device (2) against the stop element (30) such that the cleaner locking element (21) and the carriage locking element (22) lock together, and that due to the contact of the cleaning device (2) against the stop element (30), a guided pivoting movement of the cleaning device (2) around the stop element (30) is possible such thatthat the cleaning locking element (21) strikes the carriage locking element (22) during the pivoting movement and locks with the carriage locking element (22).,

Description

[0001] The invention relates to a cleaning device according to the preamble of claim 1.

[0002] In such cleaning systems, the cleaning device is typically attached to the trolley. The cleaning device is intended for use exclusively in conjunction with the trolley.

[0003] EP 2 027 941 B1 discloses a high-pressure cleaning device which can be releasably attached to a trolley by means of a snap fastener.

[0004] DE 10 2007 010 302 A1 discloses a vacuum cleaner mounted on a handcart. The connecting elements for connecting the vacuum cleaner to the handcart are formed separately from the base body of the vacuum cleaner.

[0005] WO 2017 / 143 497 A1 discloses a high-pressure cleaning device that can be mounted on a handcart. The high-pressure cleaning device has two opposing handles.

[0006] The invention is based on the object of developing a generic cleaning device in such a way that the cleaning device can be used flexibly in a simple manner.

[0007] According to the invention, the cleaning device comprises a connecting device. The cleaning device can be connected to the trolley by means of the connecting device. A connection between the cleaning device and the trolley established by the connecting device can be released without tools. This allows the cleaning device to be quickly and easily detached from the trolley. This enables flexible use of the cleaning device, even when detached from the trolley. For example, the cleaning device can be carried to locations where the use of a trolley is cumbersome or impossible. The ability to detach the cleaning device from the trolley enables easy transport of the cleaning device. The weight of the trolley does not have to be carried.

[0008] According to the invention, the connecting device comprises a locking device and a stop element. The locking device comprises a cleaner locking element on the cleaning device and a carriage locking element corresponding to the cleaner locking element on the trolley. A stop element is formed on the trolley. The stop element serves as a stop for the cleaning device when the cleaning device is connected to the trolley. The cleaning device is designed such that the cleaning device can be placed against the stop element when connected to the trolley and can be pivoted with a pivoting movement such that the cleaner locking element and the carriage locking element move relative to one another during the pivoting movement due to the cleaning device being placed against the stop element such that the cleaner locking element and the carriage locking element lock with one another.This guides the movement of the cleaning device when pivoting while the cleaning device is simultaneously in contact with the stop element. This creates a specific distance between the stop element and the cleaner locking element. This distance corresponds to the distance between the carriage locking element and the stop element. The described guided locking of the cleaner locking element and the carriage locking element enables simple and uncomplicated connection of the cleaning device to the carriage. The cleaning device can also be detached from the carriage in a simple and uncomplicated manner. This enables flexible use of the cleaning device. The cleaning device can be used in the connected state, in which the cleaning device is locked onto the carriage, or in the unconnected state, in which the cleaning device and the carriage are separated from each other.The cleaning device can be removed from the trolley while unconnected. The cleaning device can then be carried independently of the trolley. This also allows for simple and flexible use of the cleaning device. The cleaning device can be carried without the trolley while the cleaning device is unconnected. Reconnecting the cleaning device and the trolley is simple and straightforward thanks to the guided locking mechanism of the cleaner and trolley locking mechanism.

[0009] The stop element is conveniently designed as a pocket. The pocket is a receptacle into which the cleaning device can be at least partially inserted.

[0010] In particular, the cleaning device has a system contour. The system contour corresponds to the stop element, in particular to the pocket of the carriage. The system contour is expediently designed as a projection of the cleaning device. In particular, the projection of the cleaning device can be inserted into the stop element designed as a pocket. In particular, the cleaning device can be pivoted around the stop element when the system contour rests against the stop element.

[0011] The locking devices and the stop element are expediently arranged in a connecting plane when the cleaning device is connected. A vertical direction runs upwards perpendicular to the connecting plane. The contact contour can be expediently inserted into the pocket when the cleaning device is connected to the carriage. In particular, the pocket is designed such that it prevents any movement of the contact contour in the vertical direction when the contact contour is inserted into the pocket. In particular, the pocket prevents any movement of the contact contour in the vertical direction when the cleaner locking element and the carriage locking element are locked together. In particular, the vertical direction is the vertical direction when the cleaning device is parked on a horizontal plane in the designated parking position. In this case, the connecting plane runs parallel to the horizontal plane.Because the pocket is designed in such a way that it prevents any vertical movement of the contact contour when the contact contour is inserted into the pocket, in particular when the cleaner locking element and the carriage locking element are locked together, the cleaning device is held securely and firmly on the carriage. Because the pocket is designed in such a way that it prevents any vertical movement of the contact contour when the contact contour is inserted into the pocket, the pocket has a roof section that makes it easier to insert the cleaning device into the pocket. When the cleaning device pivots around the stop element designed as a pocket, the cleaning device is fixed in the area of ​​the pocket at least in such a way that the cleaner locking element can be easily guided to the carriage locking element.In particular with regard to the vertical direction, the roof section ensures appropriate positioning of the cleaner locking element relative to the trolley locking element during a pivoting movement of the cleaning device.

[0012] In an advantageous development of the invention, it is provided that the cleaner locking element is formed separately from a base body of the cleaning device. The cleaner locking element is expediently held on the base body of the cleaning device in an exchangeable manner, in particular such that it can be exchanged without tools. Because the cleaner locking element is exchangeable, it can be easily replaced when it becomes worn. Furthermore, the interchangeability of the cleaner locking element allows it to be adapted to specific operating conditions. For example, the holding force of the connection established by the connecting device can be adjusted by appropriately designing the cleaner locking element. The interchangeability of the cleaner locking element allows the cleaning device to be easily adapted to different operating conditions or for connection to different trolley types.

[0013] The cleaner locking element is preferably made of a different material than the base body. In particular, the cleaner locking element is made of a different material than a housing of the base body. The cleaner locking element is preferably made of glass-fiber-reinforced plastic. This allows the cleaning device to be manufactured cost-effectively while still maintaining high quality. More expensive materials that may be required for the manufacturing of the connecting device or the cleaner locking element do not have to be used for the entire cleaning device, but can be used exclusively for the manufacturing of the cleaner locking element.

[0014] In particular, the locking mechanism and the weight of the trolley are coordinated so that the weight of the trolley is sufficient to open the locking mechanism. This allows the locking mechanism to be opened with just one hand. Only lifting or pivoting the cleaning device is required. Due to the weight of the trolley, it remains in its position. It is not necessary to simultaneously hold the trolley with the other hand or move it away from the cleaning device.

[0015] In particular, the trolley includes a fluid tank. The locking mechanism and the weight of the trolley are suitably coordinated so that the weight of the trolley with an empty fluid tank is sufficient to open the locking mechanism. Regardless of the fluid tank's fill level, the locking mechanism can thus be opened easily, particularly with one hand.

[0016] The cleaner locking element conveniently forms a receptacle for the carriage locking element. This allows the carriage locking element to be easily locked into the cleaner locking element.

[0017] In particular, the carriage locking element is a tube of a frame of the carriage. When the cleaning device is connected, the cleaning locking element at least partially encloses the carriage locking element, which is designed as a tube.

[0018] In particular, the stop element is formed separately from a frame of the carriage. In particular, the stop element is mounted on the frame in an interchangeable manner. This allows the stop element to be retrofitted. In particular, the cleaning device can be constructed in a modular manner. Based on the same frame type, cleaning devices can be manufactured that do not have a detachable connection between the cleaning device and the carriage, as well as those that do have a detachable connection between the cleaning device and the carriage. This allows for great flexibility in production while simultaneously reducing costs.

[0019] In particular, the pivoting movement of the cleaning device when connected to the carriage occurs around the stop element in a circumferential direction. A transverse direction runs perpendicular to the circumferential direction. In a particular embodiment of the invention, the cleaning device comprises a locking device. When the cleaning device is connected, the locking device prevents any relative movement of the cleaning device and the carriage in the transverse direction. This results in a secure connection when the cleaning device is connected.

[0020] In particular, the securing device comprises a securing element and a securing receptacle. When the cleaning device is connected, the securing element expediently protrudes into the securing receptacle. In particular, the securing element prevents relative movement of the cleaning device and the carriage in the transverse direction by protruding the securing element into the securing receptacle. In particular, the securing element protrudes vertically, in particular above the carriage locking element.

[0021] The safety device is expediently formed on the carriage locking element and on the cleaner locking element.

[0022] In particular, the cleaning device is designed to spray a liquid. In particular, the cleaning device is a high-pressure cleaning device with a high-pressure pump.

[0023] Embodiments of the invention are explained in more detail below with reference to the drawings. They show: Fig. 1 a perspective view of a cleaning device comprising a cleaning device and a carriage, Fig. 2 a perspective view of the carriage from Fig. 1, Fig. 3 a sectional view of a section through the cleaning device from Fig. 1, while the cleaning device is connected to the trolley, Fig. 4 the sectional view from Fig. 3, wherein the cleaning device is connected to the carriage, Fig. 5 a perspective view of the stop element of the carriage from Fig. 2, Fig. 6 a perspective view of a section of the carriage with a stop element mounted on the frame of the carriage, Fig. 7 a perspective view of a section of the cleaning device from Fig. 1 from below onto the cleaning device, whereby the cleaning device's locking element can be seen, Fig. 8 a perspective view of the cleaner locking element from Fig. 7, Fig. 9 a detail from Fig. 4, which shows the connection of the carriage locking element and the cleaner locking element in the connected state of the cleaning device, Fig. 10 is a sectional view of a section through an alternative embodiment of the cleaning device from Fig. 1, in which the cleaning device comprises a safety device which, when the cleaning device is connected, prevents a relative movement of the cleaning device and the carriage in the transverse direction and Fig. 11 a sectional view of a section perpendicular to the Fig. 10 through the securing device according to the alternative embodiment of Fig. 10.

[0024] Fig. Figure 1 shows a cleaning device 1. The cleaning device 1 comprises a cleaning device 2 and a carriage 3. The carriage 3 comprises at least one wheel 4. In the exemplary embodiment, two wheels 4 are provided. The cleaning device 1 can be pushed onto the carriage 3.

[0025] The cleaning device 2 is an electric cleaning device. The cleaning device 2 can be a vacuum cleaner or a device for spraying a liquid. In the exemplary embodiment, the cleaning device 2 is a high-pressure cleaning device. The high-pressure cleaning device comprises a high-pressure pump. The high-pressure cleaning device is designed for cleaning objects with pressurized cleaning liquid. The cleaning liquid in the high-pressure cleaning device can be pressurized by means of the high-pressure pump. The high-pressure pump can pressurize the cleaning liquid to 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. In particular, the high-pressure pump can pressurize the cleaning liquid to a maximum of 600 bar, in particular a maximum of 500 bar. The high-pressure cleaning device comprises a motor (not shown).The motor drives the high-pressure pump.

[0026] However, the motor can also be provided in other electrical cleaning devices 2. The motor is arranged in a housing 5 of the cleaning device 2. In the exemplary embodiment, the motor is an electric motor, in particular a brushless DC motor.

[0027] In particular, the cleaning device 2 is battery-operated. In particular, the cleaning device 2 is a cordless cleaning device.

[0028] The cleaning device 1 has a connected state and a disconnected state. In the connected state of the cleaning device 1, the cleaning device 2 is connected to the carriage 3. In the disconnected state of the cleaning device 1, the cleaning device 2 is detached from the carriage 3. In the disconnected state of the cleaning device 1, the cleaning device 2 can be removed from the carriage 3. The cleaning device 2 comprises a handle 13. The cleaning device 2 can be carried by the handle 13. During proper operation of the cleaning device 2, the cleaning device 2 is parked, in particular on the floor or on the carriage 3.

[0029] The trolley 3 has a frame 8. The frame 8 is a tubular frame. At least one wheel 4 is rotatably mounted on the frame 8. The frame 8 has a handle area. The frame 8 can be gripped at the handle area in order to push the trolley 3. As shown in particular in Fig. As shown in Figure 2, the carriage 3 comprises a liquid tank 7. The liquid tank 7 is held on the frame 8. Provision can be made for the liquid tank 7 to be detachably attached to the frame 8, in particular detachably without tools. If the cleaning device 2 is a vacuum cleaner, a dust collection container can also be provided instead of the liquid tank 7.

[0030] In the Fig. 3 and Fig. Figure 4 shows how the cleaning device 2 is transferred from the unconnected state to the connected state. Fig. 4 shows the connected state of the cleaning device 1. Fig. 3 shows the transition from the unconnected state of the cleaning device 1 to the connected state by a pivoting movement of the cleaning device 2. As in Fig. As shown in Figure 4, the cleaning device 1 comprises a connecting device 10. The cleaning device 2 can be connected to the carriage 3 by means of the connecting device 10. A connection between the cleaning device 2 and the carriage 3 established by the connecting device 10 can be released without tools.

[0031] The connecting device 10 comprises a locking device 20 and a stop element 30. As shown in particular in Fig. 3, the locking device 20 comprises a cleaner locking element 21 and a carriage locking element 22. The carriage locking element 22 corresponds to the cleaner locking element 21. When the cleaning device 1 is connected, the cleaner locking element 21 is locked to the carriage locking element 22. The cleaner locking element 21 is assigned to the cleaning device 22. The carriage locking element 22 is assigned to the carriage 3. By locking the cleaner locking element 21 to the carriage locking element 22, the cleaning device 2 is connected to the carriage 3. By locking the cleaner locking element 21 to the carriage locking element 22, the cleaning device 2 is held on the carriage 3.

[0032] The stop element 30 is formed on the carriage 3. The stop element 30 serves as a stop for the cleaning device 2 when the cleaning device 2 is connected to the carriage 3. The cleaning device 1 is designed such that the cleaning device 2 can be placed against the stop element 30 when connected to the carriage and can be pivoted with a pivoting movement such that the cleaner locking element 21 and the carriage locking element 22 move relative to one another during the pivoting movement due to the cleaning device 2 being placed against the stop element 30 such that the cleaner locking element 21 and the carriage locking element 22 lock together. This also allows the synopsis of the Fig. 3 and Fig. 4. By placing the cleaning device 2 on the stop element 30, a guided pivoting movement of the cleaning device 2 around the stop element 30 is possible such that the cleaner locking element 22 strikes the carriage locking element 22 during the pivoting movement and locks with the carriage locking element 22.

[0033] In particular, the stop element 30 and the cleaner locking element 21 are in a Fig. 3 are arranged at a distance d from each other. The carriage 3 has a Fig. 1 and in Fig. 2. The carriage 3 has a vertical direction 50. When the carriage 3 is parked in the horizontal position, the vertical direction 50 runs perpendicular to the horizontal plane. In the connected state of the cleaning device 1, the distance d between the stop element 30 and the cleaner locking element 21 is measured in the direction perpendicular to the vertical direction 50, as shown in Fig. 4 shown.

[0034] As also in Fig. 4, the cleaning device 2 has a length 1 measured in the same direction as the distance d. The distance d between the cleaner locking element 21 and the stop element 30 is at least 30%, in particular at least 40%, in the exemplary embodiment at least 50% of the length 1 of the cleaning device 2. In particular, the distance d is at most 90%, in particular at most 80%, in the exemplary embodiment at most 70% of the length 1.

[0035] When the cleaning device 2 is in contact with the stop element 30, the cleaning device 2 can be pivoted around the stop element 30. The cleaning locking element 21 essentially moves in a circular path.

[0036] The cleaning device 2 has a contact contour 31. The contact contour 31 of the cleaning device 2 corresponds to the stop element 30 of the carriage 3. In the exemplary embodiment, the contact contour 31 is designed as a projection of the cleaning device 2. The cleaning device 2 has a base body 5. The contact contour 31 designed as a projection protrudes beyond the base body 5. In the Fig. In the connected state of the cleaning device 1 shown in Figure 4, the contact contour 31 formed as a projection protrudes in a direction perpendicular to the vertical direction 50 beyond the base body 5 of the cleaning device 2. The contact contour 31 formed as a projection is also arranged at a distance d from the cleaner locking element 21, as shown in Fig. 4 shown.

[0037] In the exemplary embodiment, the cleaner locking element 21 forms a receptacle for the carriage locking element 22. When the cleaner locking element 21 is locked to the carriage locking element 22, the carriage locking element 22 is inserted into the receptacle formed by the cleaner locking element 21, received there, and locked in the receptacle of the cleaner locking element 21. When the cleaning device 1 is connected, the receptacle of the cleaner locking element 21 at least partially encompasses the carriage locking element 22. In the exemplary embodiment, the carriage locking element 22 is a tube of the frame 8 of the carriage 3. In particular, an outer circumference of the tube is cylindrical. In the region in which the tube of the frame 8 forms the carriage locking element 22, the tube of the frame 8 runs in a straight manner. In the connected state of the cleaning device 1, the receptacle of the cleaner locking element 21 encompasses the outer circumference of the carriage locking element 22 in an angular range of 180° to 270°, in particular from 200° to 240°.In the connected state of the cleaning device 1, the cleaning device 2 rests on the carriage locking element 22, which is formed by a tube of the frame 8 of the carriage 3.

[0038] Due to the pivoting movement when connecting the cleaning device 2 to the carriage 3 while the cleaning device 2 simultaneously rests against the stop element 30 of the carriage 3, the cleaner locking element 21 is brought closer to the carriage locking element 22 such that the locking device 20 can be locked. Due to the cleaning device 2 being placed in the stop element 30, the cleaner locking element 21 is initially guided during the pivoting movement such that the cleaner locking element 21 is positioned above the carriage locking element 22. Due to the cleaning device 2 being placed in the stop element 30, the cleaner locking element 21 is initially guided during the pivoting movement such that the cleaner locking element 21 comes to rest above the carriage locking element 22 such that the cleaner locking element 21 can be locked with the carriage locking element 22.

[0039] Like the Fig. 3, Fig. 5 and Fig. 6, the stop element 30 is designed as a pocket. The cleaning device 2 can be inserted into the pocket and then pivoted when seated in the pocket. The contact contour 33 can be inserted into the pocket when the cleaning device 2 is connected to the carriage 3. The pocket is designed such that it prevents movement of the contact contour 31 in the vertical direction 50 when the contact contour 31 is inserted into the pocket. In particular, the pocket prevents movement of the contact contour 31 in the vertical direction 50 when the cleaner locking element 21 and the carriage locking element 22 are locked together. The pocket is delimited in the vertical direction 50 by a roof section. The pocket is delimited opposite to the vertical direction 50 by a floor section. The cleaning device 2, in particular the contact contour 31, can be inserted into the pocket between the roof section and the floor section.

[0040] As in Fig. 4, the locking device 20 and the stop element 30 are arranged in a connecting plane E when the cleaning device 1 is in the connected state. However, it can also be provided that the locking device 20 and the stop element 30 are arranged offset from one another. When the cleaning device 1 is parked on a horizontal plane in its storage position, the connecting plane E runs parallel to the horizontal plane. The vertical direction 50 runs upwards perpendicular to the connecting plane E. When the cleaning device 1 is parked on a horizontal plane in its storage position, the vertical direction 50 runs perpendicular to the horizontal plane for all conceivable embodiments. The distance d and the length l are measured parallel to the connecting plane E when the cleaning device 1 is in the connected state. The distance d and the length l are measured parallel to the horizontal plane when the cleaning device 1 is in the storage position in the connected state.

[0041] In the connected state of the cleaning device 1, the stop element 30 extends in the connecting plane E in the exemplary embodiments. In the connected state of the cleaning device 1, the carriage locking element 22, in particular the carriage locking element 22 designed as a tube, extends in particular in the connecting plane E. In the connected state of the cleaning device 1, the cleaner locking element 21 expediently extends in the connecting plane E.

[0042] The pivoting movement of the cleaning device 2 when connecting the cleaning device 2 with the carriage 3 takes place in a Fig. 3 and Fig. 4. When connecting the cleaning device to the carriage 3, the cleaning device 3 is pivoted in the circumferential direction 49. The circumferential direction 49 runs around the stop element 30. The circumferential direction 49 runs in a plane which, when the cleaning device 1 is parked on the horizontal plane in the parking position, is perpendicular to the horizontal plane. The circumferential direction 49 runs in a plane which is perpendicular to the connection plane E. The circumferential direction 49 runs around the stop element 30. When pivoting when the cleaning device 2 rests against the stop element 30 to connect the cleaning device 2 to the carriage 3, the cleaner locking element 21 moves along the circumferential direction 49. To connect the cleaning device 2 to the carriage 3, the cleaning device 2 must be pivoted essentially counter to the vertical direction 50.

[0043] In the exemplary embodiment, the stop element 30 designed as a pocket and the contact contour 31 designed as a projection are designed such that a pivoting movement of at least 5°, in particular of at least 10°, is possible when connecting the cleaning device 2 to the carriage 3. The cleaning device 2 can first be inserted with the contact contour 31 designed as a projection into the stop element 30 designed as a pocket and thus pre-positioned. This pre-positioning does not require much care. The cleaning device strikes the stop element 30 and is then already pre-positioned. From this pre-positioning position, the cleaning device 2 can be pivoted around the stop element 30 in the circumferential direction 49. The locking device 20 is thereby engaged. The cleaner locking element 21 locks with the carriage locking element 22. The carriage locking element 22 is received in the receptacle formed by the cleaner locking element 21.

[0044] The stop element 30 is formed separately from the frame 8 of the carriage 3. The stop element 30 is, in particular, held replaceably on the frame 8. Fig. 5 shows the stop element 30 as a separate component. In Fig. 6, the stop element 30 is fixed to the frame 8 of the carriage 3 by means of screws.

[0045] As in the Fig. 7 to 9, the cleaner locking element 21 is formed separately from the base body 5 of the cleaning device 2. The cleaner locking element 21 is detachable from the base body 5. The cleaner locking element 21 is held replaceably on the base body 5 of the cleaning device 2. In particular, the cleaner locking element 21 is held replaceably on the base body 5 of the cleaning device 2 without the need for tools. As shown in particular in Fig. As can be seen in Figure 9, the cleaner locking element 21 is connected to the base body 5 of the cleaning device 2 by means of a further locking connection. For this purpose, the cleaner locking element 21 has Fig. 8 shown wing arms 23. In a sectional plane that also contains the circumferential direction 49 ( Fig. 9), the wing arms 23 are essentially U-shaped. The wing arms 23 are elastic and can be compressed when installing the cleaner locking element in the base body 5 of the cleaning device 2. In this way, the wing arms 23 can Fig. 9 shown locking projections 24 of the base body 5 and are pressed into a cleaner receptacle 25. The locking projections 24 then hold the cleaner locking element 21 in the cleaner receptacle 25. The wing arms 23 return to their original position after the wing arms 23 have been pressed together and engage behind the locking projections 24. The wing arms 23 then rest against the locking projections 24 and thus hold the cleaner locking element 21 in the cleaner receptacle 25. As in Fig. As shown in Figure 7, the locking projections 24 extend only over a portion of the longitudinal extent of the cleaner locking element 21, in particular only over a portion of the longitudinal extent of the wing arms 23. Recesses 26 are provided in the base body 5, through which the wing arms 23 can be pressed together even when the cleaner locking element 21 is locked into the base body 5. In this way, the cleaner locking element 21 can be removed from the cleaner receptacle 25. In the area of ​​the recesses 26, the wing arms 23 are not covered by the locking projections 24. A total of four recesses 26 are provided.

[0046] The cleaner locking element 21 is made of a different material than the base body 5. The base body 5 has a housing 6, as shown for example in the Fig. 3 and Fig. 4. The cleaner locking element 21 is made of a different material than the housing 6 of the base body 5. In the exemplary embodiment, the cleaner locking element 21 is made of glass-fiber-reinforced plastic. The base body 5 is made, in particular, of unreinforced plastic. In particular, the housing 6 of the base body 5 is made of unreinforced plastic.

[0047] The locking device 20 and the weight of the carriage 3 are matched to each other in such a way that the weight of the carriage 3 is sufficient to release the locking device 20. As in Fig. 2, the carriage 3 comprises the liquid tank 7. The locking device 20 and the weight of the carriage 3 are coordinated so that the weight of the carriage 3 with empty liquid tank 7 is sufficient to open the locking device 20. As shown in particular in the Fig. 4 and Fig. 9, the cleaner locking element 21 holds the carriage locking element 22 with a holding force. The weight of the carriage 3 is greater than this holding force. In the connected state of the cleaning device 1, the cleaner locking element 21 rests against the carriage locking element 22. The carriage locking element 22, which is designed as a tube, is at least partially enclosed by the cleaner locking element 21 in this connected state. In the connected state of the cleaning device 1, the carriage locking element 22 is clamped into the cleaner locking element 21. In this way, the locking device 20 is closed. The cleaner locking element 21 encloses the carriage locking element 22, which is designed as a tube, over a circumferential angle of more than 180°, as shown in the Fig. 8 and Fig. 9. The cleaner locking element 21 encloses the carriage locking element 22 over a circumferential angle of the carriage locking element 22 of less than 240°. When the locking device 20 is locked, the cleaner locking element 21 is initially slightly widened on its open side by the carriage locking element 22. When the contact surface between the cleaner locking element 21 and the carriage locking element 22 is at its maximum, i.e., when the carriage locking element 22 is inserted as far as possible into the cleaner locking element 21, the widening of the cleaner locking element 21 is at least reduced or stopped. The carriage locking element 22 is then locked into the cleaner locking element 21.

[0048] As in the Fig. 8 and Fig. As shown in Figure 9, the cleaner locking element 21 has locking arms 27. In the exemplary embodiment, four locking arms 27 are provided. The locking arms 27 are arranged opposite one another in pairs. The carriage locking element 22 is clamped between the locking arms 27 in the locked state. In the exemplary embodiment, the locking device 22 is a clamping device. However, another locking mechanism can also be provided for locking the locking device 22. As shown in Fig. 8, the locking arms 27 extend in the longitudinal direction of the cleaner locking element 21 only over a partial area of ​​the longitudinal extent of the cleaner locking element 21. The holding force of the cleaner locking element 21 and the locking device 22 can be adjusted via the longitudinal extent of the locking arms 27 in the longitudinal direction of the cleaner locking element 22. A hollow space is formed between the locking arms 27 and the wing arms 23, so that the wing arms 23 and the locking arms 27 are at least partially movable relative to one another. The wing arms 23 are connected to the locking arms 27. The wing arms 23 are attached to the locking arms 23. The opposing locking arms 23 together have the shape of a slotted hollow cylinder with a slot width of 120° to 180°, in particular of 140° to 170°, with respect to the circumferential direction of the hollow cylinder. The wing arms 23 are attached to the hollow cylinder formed by the locking arms 27, in particular in a U-shape.The locking arms 23 are connected to each other.

[0049] The Fig. 10 and Fig. 11 show an alternative embodiment of a cleaning device 1. The above description of the embodiment according to the Fig. 1 to 9 also applies to the alternative embodiment according to the Fig. 10 and Fig. 11. In particular, all cleaning devices 1 have the Fig. 3, Fig. 4, Fig. 10 and Fig. 10. The transverse direction 48 is perpendicular to the circumferential direction 49, in which the pivoting movement of the cleaning device 2 takes place. The transverse direction 48 is parallel to the horizontal plane when the cleaning device 1 is parked in the parking position on the horizontal plane. The transverse direction 48 is perpendicular to the vertical direction 50. In the embodiment according to the Fig. 10 and Fig. 11, the cleaning device 1 comprises, in addition to the features described so far, a safety device 9. The safety device 9 prevents, in the connected state of the cleaning device 1, a relative movement of the cleaning device 2 and the carriage 3 to one another in the transverse direction 48. The transverse direction 48 is a double direction, so that the safety device 9 prevents a relative movement of the cleaning device 2 and the carriage 3 to one another in both directions of the transverse direction 48.

[0050] The safety device 9 comprises a safety element 12 and a safety receptacle 11. As shown in the Fig. 10 and Fig. 11, the securing element 12 protrudes into the securing receptacle 11 when the cleaning device 1 is connected. Because the securing element 12 protrudes into the securing receptacle 11 when the cleaning device 1 is connected, a relative movement of the cleaning device 2 and the carriage 3 in the transverse direction 48 is prevented. When the cleaning device 1 is connected, the securing element 12 rests in the securing receptacle 11. In the exemplary embodiment, the securing element 12 has a ball head. The ball head is held on a bolt. In the exemplary embodiment, the bolt is fastened to the carriage locking element 22. When the cleaning device 1 is connected, the ball head of the securing element 12 rests in the securing receptacle 11. In particular, the securing receptacle 11 encompasses the securing element 12 over an angle of 360°.In particular, the securing element 12 rests with its ball head over an angle of 360° in the securing receptacle 11.

[0051] In the exemplary embodiment, the securing device 9 is formed on the carriage locking element 22 and on the cleaner locking element 21. As a result, the locking connection provided by the locking device 20 is also secure and stable in the transverse direction 48. In the exemplary embodiment, the securing element 12 is screwed into the carriage locking element 22 designed as a tube and protrudes from the tube. In particular, the securing element 12 protrudes from the tube in the vertical direction 50. The longitudinal extent of the securing element 12 runs radially to the longitudinal extent of the carriage locking element 22 designed as a tube. As shown in particular in Fig. 11, the safety receptacle 11 is a recess in the bottom of the cleaner locking element 21. In Fig.10 it can be seen that the securing receptacle 12 extends over less than 10% of the longitudinal extent of the cleaner locking element 21.

Claims

[1] Cleaning device comprising a cleaning device (2) and a carriage (3) for the cleaning device (2), wherein the carriage (3) comprises at least one wheel (4) on which the carriage (3) can be pushed, characterized bythat the cleaning device (1) comprises a connecting device (10), that the cleaning device (2) can be connected to the carriage (3) by means of the connecting device (10), that a connection of the cleaning device (2) to the carriage (3) established by the connecting device (10) can be released without tools, that the connecting device (10) comprises a locking device (20) and a stop element (30), that the locking device (20) has a cleaner locking element (21) on the cleaning device (2) and a carriage locking element (22) corresponding to the cleaner locking element (21) on the carriage (3), that a stop element (30) is formed on the carriage (3) and serves as a stop for the cleaning device (2) when connecting the cleaning device (2) to the carriage (3), that the cleaning device (1) is designed such thatthat the cleaning device (2) can be placed on the stop element (30) when connected to the carriage (3) and can be pivoted with a pivoting movement such that the cleaner locking element (21) and the carriage locking element (22) move relative to one another during the pivoting movement due to the contact of the cleaning device (2) with the stop element (30) such that the cleaner locking element (21) and the carriage locking element (22) lock together, and that the contact of the cleaning device (2) with the stop element (30) enables a guided pivoting movement of the cleaning device (2) around the stop element (30) such that the cleaning locking element (21) strikes the carriage locking element (22) during the pivoting movement and locks with the carriage locking element (22). [2] Cleaning device according to claim 1, characterized by that the stop element (30) is designed as a pocket. [3] Cleaning device according to claim 1 or 2, characterized bythat the cleaning device (2) has a contact contour (31), that the contact contour (31) corresponds to the stop element (30) of the carriage (3), and in particular that the contact contour (31) is designed as a projection of the cleaning device (2). [4] Cleaning device according to claims 2 and 3, characterized by that the locking device (20) and the stop element (30) are arranged in a connecting plane (E) when the cleaning device (1) is in the connected state, that a vertical direction (50) runs upwards perpendicular to the connecting plane (E), that the contact contour (31) can be inserted into the pocket when the cleaning device (2) is connected to the carriage (3), that the pocket is designed such that it prevents movement of the contact contour (31) in the vertical direction (50) when the contact contour (31) is inserted into the pocket, in particular when the cleaner locking element (21) and the carriage locking element (22) are locked together. [5] Cleaning device according to one of claims 1 to 4, characterized by that the cleaner locking element (21) is designed separately from a base body (5) of the cleaning device (2), that the cleaner locking element (21) is held on the base body (5) of the cleaning device (2) in an exchangeable manner, in particular in a tool-free manner. [6] Cleaning device according to claim 5, characterized by that the cleaner locking element (21) consists of a different material than the base body (5), in particular of a different material than a housing (6) of the base body (5), in particular of glass fiber reinforced plastic. [7] Cleaning device according to one of claims 1 to 6, characterized bythat the carriage (3) comprises in particular a liquid tank (7), that the locking device (20) and the weight of the carriage (3) are coordinated with one another such that the weight of the carriage (3), in particular with an empty liquid tank (7), is sufficient to open the locking device (20). [8] Cleaning device according to one of claims 1 to 7, characterized by that the cleaner locking element (21) forms a receptacle for the carriage locking element (22). [9] Cleaning device according to one of claims 1 to 8, characterized by that the carriage locking element (22) is a tube of a frame (8) of the carriage (3). [10] Cleaning device according to one of claims 1 to 9, characterized bythat the pivoting movement of the cleaning device (2) takes place in a circumferential direction (49) around the stop element (30), that a transverse direction (48) runs perpendicular to the circumferential direction (49), that the cleaning device (1) comprises a securing device (9) which, in the connected state of the cleaning device (1), prevents a relative movement of the cleaning device (2) and the carriage (3) in the transverse direction (48). [11] Cleaning device according to claim 10, characterized by that the securing device (9) comprises a securing element (12) and a securing receptacle (11), and that the securing element (12) projects into the securing receptacle (11) when the cleaning device (1) is in the connected state and thereby prevents a relative movement of the cleaning device (2) and the carriage (3) in the transverse direction (48). [12] Cleaning device according to claim 10 or 11, characterized bythat the securing device (9) is formed on the carriage locking element (22) and on the cleaner locking element (21). [13] Cleaning device according to one of claims 1 to 12, characterized by that the cleaning device (2) is designed to spray a liquid, and in particular that the cleaning device (2) is a high-pressure cleaning device with a high-pressure pump.

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