Suction cleaning apparatus

Abstract

The present invention relates to a suction cleaning device (1) having a housing (2) surrounding a fan (3), a suction channel (4) and a suction chamber (5), the housing having a regeneration opening (6) capable of flow connection with the suction chamber (5), the regeneration opening being able to be closed by means of a movable housing closure element (7), wherein, during suction cleaning operation of the suction cleaning device (1), the suction material can be transported from the surface to be cleaned through the suction channel (4) into the suction chamber (5), and wherein, during regeneration operation of the suction cleaning device (1), the collected suction material can be transported from the suction chamber (5) through the open regeneration opening (6) to a base station (8) connected to the suction cleaning device (1) in a flow technology, wherein the suction channel (4) is provided with a movable channel closure element (9). In order to regenerate not only the coarse material area (21) of the suction chamber (5) but also the fine dust area (20) and / or the filter element (19), it is recommended that the suction cleaning device (1) have a switching device configured to switch the channel sealing element (9) and the housing sealing element (7) sequentially in time during regeneration operation, such that when the suction channel (4) is open, the regeneration opening (6) is first opened by moving the housing sealing element (7), and then the suction channel (4) is closed by moving the channel sealing element (9).

Description

Technical Field

[0001] This invention relates to a suction cleaning device having a housing surrounding a fan, a suction channel, and a suction chamber. The housing has a regeneration opening capable of achieving flow connection with the suction chamber. This regeneration opening can be closed by means of a movable housing closure element. During suction cleaning operation of the suction cleaning device, suction material can be transported from the surface to be cleaned through the suction channel into the suction chamber. During regeneration operation of the suction cleaning device, the collected suction material can be transported from the suction chamber through the open regeneration opening to a base station that is technically connected to the suction cleaning device. The suction channel is equipped with a movable channel closure element.

[0002] Furthermore, the present invention also relates to a system having such a suction cleaning device and a base station, wherein the base station has a base station suction chamber and a base station channel for establishing a flow connection between the base station suction chamber and the regeneration opening of the suction cleaning device. Background Technology

[0003] The above-described type of suction cleaning device and base station for regenerating the suction chamber of such suction cleaning device are well known in the prior art. To clean the suction chamber, the suction cleaning device is connected to the base station. The suction material can then be transferred from the suction chamber of the suction cleaning device to the base station's base station suction chamber. To regenerate the suction chamber of the suction cleaning device, for example, a fan from the base station, an external fan, or a fan owned by the suction cleaning device can be used, wherein, in the last mentioned case, flow reversal is necessary to generate an airflow opposite to the normal flow direction during the suction operation of the suction cleaning device. The suction cleaning device is coupled to the base station such that the corresponding housing openings are connected and the suction material can flow from the suction chamber of the suction cleaning device into the base station's base station suction chamber through a base station channel.

[0004] One disadvantage is that, due to the negative pressure generated in the suction chamber, air is also drawn in through the suction channel. This airflow typically only flows through the coarse material area of ​​the suction chamber, but not through the fine dust area with filter elements, which are usually arranged between the suction chamber and the fan of the suction cleaning device. Therefore, the regeneration airflow does not completely flush the suction chamber on its way from the suction channel to the base station channel, but only flushes the area where the coarse material is collected. Conversely, fine dust located on or adjacent to the filter elements is not captured and carried away by the regeneration airflow. Overall, this results in incomplete regeneration of the suction chamber. Summary of the Invention

[0005] Therefore, based on the aforementioned prior art, the technical problem to be solved by the present invention is to improve the suction cleaning equipment so that its suction chamber is not only regenerated in the coarse material area, but also optimally cleaned in the fine dust area, including the filter element.

[0006] To address this technical problem, it is proposed that the suction cleaning equipment include a switching device configured to sequentially switch the channel sealing element and the housing sealing element during the regeneration operation. This is such that when the suction channel is open, the regeneration opening is first opened by moving the housing sealing element, and then the suction channel is closed by moving the channel sealing element. The channel sealing element and the housing sealing element are operatively connected, such that movement of the housing sealing element causes movement of the channel sealing element. Thus, opening the housing sealing element causes closing of the channel sealing element, and closing the housing sealing element causes opening of the channel sealing element.

[0007] Therefore, for the regeneration process of the suction cleaning equipment, it is recommended that there be a time interval between the movement of the housing sealing element and the movement of the channel sealing element, so that when the suction channel of the suction cleaning equipment is traversed, only the coarse material area of ​​the suction chamber is regenerated first, or primarily regenerated, and the fine dust area with the filter element is regenerated only when the channel sealing element closes the suction channel after a time offset. According to this design, the purification process is thus performed sequentially, wherein the suction of the fine dust area and the suction of the coarse material area are performed in turn. If a bypass is also used (as described below), the regeneration of the coarse material area and the fine dust area can be completely separated. Otherwise, the regeneration of different areas of the suction chamber has at least a temporal overlap, wherein initially only coarse material is transported to the base station, and then fine dust is transported away separately when the channel sealing element is moved to the closed position of the suction channel. To switch the flow path, the suction cleaning equipment has a switching device adapted and configured to switch the channel sealing element, the housing sealing element, and, if necessary, additional sealing elements for one or more bypasses. The control device for such a switching device can belong to the suction cleaning equipment or the base station. Advantageously, the regeneration sequence is determined such that coarse material is removed first, thus freeing up a flow path for removing fine dust. Here, temporal control of the flow path proves advantageous, first specifying, for example, 30 seconds of coarse material removal followed by fine dust removal. Alternatively, coarse material removal and fine dust removal can be performed repeatedly and alternately, for example, after a defined time window, such as 30 seconds of coarse material removal, 30 seconds of fine dust removal, 30 seconds of coarse material removal, 30 seconds of fine dust removal, etc.

[0008] It is recommended that the channel closure element and the housing closure element be connected in such an action that movement of the housing closure element causes movement of the channel closure element. Thus, the suction cleaning device is designed such that when the housing closure element is moved, the channel closure element moves automatically. The connection between the housing and channel closure elements can be mechanical, electrical, electromechanical, magnetic, pneumatic, or hydraulic. Importantly, the movement functions of these closure elements are coupled such that opening the housing closure element results in closing the channel closure element, and closing the housing closure element results in opening the channel closure element. Thus, the closure element for the regeneration operation of the suction cleaning device is brought to a position that allows for optimal regeneration of the suction chamber, which includes a fine dust area and / or a filter element located within the fine dust area. When the channel closure element is open, the regeneration airflow flowing through the suction channel is blocked; instead, regeneration airflow can flow through the fine dust area and the filter element, for example, through an auxiliary air opening located on the clean air side of the filter element, and especially during suction operation when the compressed air outlet of the fan associated with the suction cleaning device is through-flowed. The velocity of the regenerated airflow through the fine dust region of the filter element and / or suction chamber can be increased by arranging a rotating air nozzle, for example, upstream of the suction chamber relative to the flow direction of the regenerated airflow. The regenerated airflow entering the suction cleaning device through the auxiliary air opening can pass through the rotating air nozzle, causing it to rotate. The regenerated airflow exiting the rotating air nozzle then surrounds the filter element from the clean air side and removes fine dust from the filter element and / or fine dust region on the opposite side. The removed fine dust can then pass through the regeneration opening of the suction cleaning device and enter the base station suction chamber of the base station through the base station channel. Preferably, the regenerated airflow passes not only through the fine dust region of the suction chamber of the suction cleaning device but also through the coarse dust region. If the suction cleaning device is a cyclone dust collector with a centrifugal separator, the regenerated airflow can also flow sequentially first through the fine dust region, then through the separator, and finally through the coarse dust region of the suction chamber to the regeneration opening of the suction cleaning device. Alternatively, a direct flow connection can exist between the fine dust area of ​​the suction chamber and the regeneration opening, allowing the fine dust to be guided from beside the coarse dust area and, if necessary, from beside the separator into the base station. For this purpose, an additional flow path is required within the suction cleaning equipment, providing a bypass to the coarse dust area and, if necessary, to the separator. Preferably, however, the regeneration airflow is also guided at least partially through the coarse dust area of ​​the suction chamber and, if necessary, through the separator. According to another variation, it is possible, for example, to bypass the separator when using a bypass, but instead allow flow through the coarse dust area of ​​the suction chamber.In this configuration, fine dust from the fine dust area is guided from beside the separator through the coarse dirt area into the suction chamber and subsequently to the base station. However, it is preferable to incorporate the separator, if necessary, into the regeneration process, so that in this case, the regeneration airflow flows through the fine dust area, the separator, and the coarse dirt area of ​​the suction chamber. This variation also has the advantage of eliminating additional flow paths, particularly bypass channels. This saves installation space within the housing of the suction cleaning equipment, as well as cost and weight.

[0009] It is recommended that the channel closure element be movable relative to the suction channel. In particular, the channel closure element can be slidably supported. In principle, the channel closure element can also be moved from a closed position to an open position and vice versa by pivoting, for example. However, slidable movement is preferred here, wherein the channel closure element is slidably supported within a corresponding local area of ​​the device housing. Alternatively, the channel closure element can also be supported in the suction cleaning device with low friction, for example by rollers or spherical elements.

[0010] It is recommended that the channel closure element be operatively connected to the housing closure element via a mechanical actuation device. The mechanical actuation device may, for example, include a pulling element, a pushing element, a push-pull element, or a transmission device. Importantly, the mechanical actuation device is adapted to transmit the force that moves the housing closure element to the channel closure element, so that the channel closure element also moves when the housing closure element moves.

[0011] It is particularly recommended that the housing closure element be pivotally supported on a rotating shaft, and that the channel closure element be connected to the housing closure element and / or the rotating shaft in a force-transmitting manner. According to this design, the housing closure element, which closes the regeneration opening of the suction cleaning device, is pivotally supported, and due to its mechanical connection with the channel closure element, movement of the channel closure element occurs simultaneously when the housing closure element moves or the rotating shaft rotates. According to this design, the movement of the channel closure element is coupled to the opening movement of the pivoting housing closure element. This coupling allows both tensile and shear forces to be transmitted. The action connection of these closure elements can also be accelerated or decelerated by a transmission mechanism to adjust and optimize the corresponding operating force and / or operating path and positioning accuracy. The time interval between the movement of the housing closure element and the channel closure element can also be adjusted by means of the transmission mechanism.

[0012] According to the preferred design, the channel closure element has a flexible strip that has a closing area for closing the suction channel on one hand, and a connecting area for mechanical coupling with the housing closure element or its rotational axis on the other. The channel closure element can be, in particular, a flexible plastic strip. The flexible strip is preferably adapted to transmit both tensile and shear forces from the housing closure element to the channel closure element and vice versa. This means that the strip must have at least some inherent stiffness to allow such forces to be transmitted. In particular, flexible plastics such as PVC are suitable for constructing such a strip. Alternatively, a metal strip suitable for transmitting tensile and shear forces can also be used as the flexible strip. Preferably, the channel closure element is formed by an end region of the flexible strip that can move to the suction opening of the suction channel or into the suction channel to close it. The end region of the strip opposite to this end region can be directly coupled to the housing closure element or its pivot axis or connected to the housing closure element or its pivot axis via an intermediately arranged force-transmitting element. If the belt is designed to transmit tension only and not shear force, a spring element can be added, which is adapted to move the belt in the opposite direction to the tension. This direction typically corresponds to the preferred position of the channel closure element, in this case, for example, the open state of the suction channel (which allows the suction cleaning device to restart suction operation after the regeneration process is complete).

[0013] It is suggested that the channel closure element be slidably supported in a guide groove constructed between the housing closure element and the suction channel. The guide groove stabilizes the channel closure element, thereby allowing tensile and shear forces to be effectively transmitted, for example, despite the flexibility of the strap. The guide groove can be, for example, a guide slot constructed in the housing of the suction cleaning device, within which the strap slides.

[0014] Finally, it is suggested that the suction cleaning device has an interface for connection to a base station, wherein the interface has an interface element operatively connected to a housing closure element and / or a channel closure element, which can be manipulated to close the suction channel by means of the channel closure element when the suction cleaning device is connected to the base station. The interface may also simultaneously have a regeneration opening to which a housing opening of the base station can be coupled to connect the regeneration channel of the suction cleaning device to a corresponding flow channel of the base station. A suggested interface element may be, for example, a contact switch, which is automatically actuated and causes movement of the channel closure element when the suction cleaning device is connected to the base station. For example, in a simple case, the housing closure element can be moved directly by manipulating the interface element, and thus the channel closure element operatively connected to the housing closure element can also be moved. Alternatively, a direct action can be applied to the channel closure element. Furthermore, it may be specified that the interface element has an actuator or actuating actuator that moves the channel closure element and / or the housing closure element mechanically, electrically, electromechanically, pneumatically, hydraulically, or magnetically. It can be stipulated that this actuator is associated with the base station, and the interface of the suction cleaning equipment provides the control elements for the actuator.

[0015] In addition to the aforementioned suction cleaning device, the present invention also proposes a system having a suction cleaning device and a base station, wherein the base station has a base station suction chamber and a base station channel for establishing a flow connection between the base station suction chamber and the regeneration opening of the suction cleaning device, and wherein the base station has actuating elements for actuating interface elements and / or housing closure elements and / or channel closure elements of the suction cleaning device connected to the base station. The aforementioned advantages and features of the suction cleaning device are also applicable to the system having such a suction cleaning device and base station. For the avoidance of redundancy, reference is made to the foregoing description regarding the suction cleaning device and base station.

[0016] It is particularly recommended that, when the regeneration opening is opened by means of the housing sealing element and the suction channel is closed by means of the channel sealing element, the suction chamber of the suction cleaning device and the base station suction chamber of the base station are fluidly connected to each other, such that the regeneration airflow for regenerating the suction chamber can pass through the fine dust area with filter element and / or the coarse material area of ​​the suction chamber without penetrating the suction channel and then flow into the base station suction chamber through the regeneration opening of the suction cleaning device and the base station channel of the base station. Attached Figure Description

[0017] The present invention will now be described in detail with reference to the embodiments. In the accompanying drawings:

[0018] Figure 1 This illustrates a system according to the present invention, consisting of a suction cleaning device and a base station;

[0019] Figure 2 This shows a localized area where cleaning equipment and base stations are being pumped during regeneration operations;

[0020] Figure 3 A detailed view of a portion of a channel closure element with a suction cleaning device in the open position is shown;

[0021] Figure 4 Showing with Figure 3 A similar detailed drawing shows a channel closure element in the closed position;

[0022] Figure 5 An enlarged view of the channel closure element in the open position is shown;

[0023] Figure 6 An enlarged view of the channel closure element in the closed position is shown. Detailed Implementation

[0024] Figure 1 An exemplary system according to the invention is shown, comprising a suction cleaning device 1 and a base station 8. The suction cleaning device 1 is, for example, a handheld vacuum cleaner commonly used in household chores, having a base device 22, an accessory device 23 detachably connected thereto, a handle 25 preferably of variable length, and a handle 26, on which a switch 27 is provided, allowing the user to, for example, turn the suction cleaning device 1 on and off, select the power level of the fan 3 of the suction cleaning device 1, etc. The suction cleaning device 1 also has a housing 2 and a suction chamber 5 disposed therein, into which suction material, such as dust and dirt, can be sucked. Here, the fan 3 is used to generate negative pressure at the suction port 24 of the accessory device 23. The suction cleaning device 1 is also, for example, designed as a cyclone dust collector with a separator 29. The accessory device 23 and the suction chamber 5 of the base device 22 are connected to each other via a suction channel 4, allowing suction material to enter the suction chamber 5 from the surface to be cleaned. The suction chamber 5 has a regeneration opening 6 with a housing closure element 7. The housing closure element 7 is, for example, a pivotable flap that can be pivoted to release the regeneration opening 6 to remove the aspirate from the suction chamber 5. The housing closure element 7 pivots about a rotation axis 10. The regeneration opening 6 is located in the area of ​​interface 14, which is used to mount the suction cleaning device 1 onto the base station 8. Interface 14 has an interface element 15 that can be operated by a corresponding actuating element 18 of the base station 8. See also... Figures 3 to 6 The working principle is explained in detail.

[0025] Base station 8 is used to perform service operations on the suction cleaning device 1, specifically for emptying the suction chamber 5 of the suction cleaning device 1. However, base station 8 can also perform other operations, such as charging the battery of the suction cleaning device 1 and providing various accessory devices 23 for the suction cleaning device 1. Figure 1 In this configuration, the suction cleaning device 1 is connected to the base station 8, for example, mated to a designated local area of ​​the base station 8. An interface element 15 for the suction cleaning device 1 (see [link to interface element 1]) exists between the suction cleaning device 1 and the base station 8. Figure 3 and Figure 4 The interface element acts as a contact switch and can identify contact between the suction cleaning device 1 and the base station 8. The base station 8 also has a base station fan 31 and a base station suction chamber 16 for receiving suction material from the suction chamber 5 of the suction cleaning device 1. A base station channel 17 extends outward from the base station suction chamber 16 and can be closed by means of a movable base station sealing element 30. The base station sealing element 30 is also pivotable about a rotation axis 10, for example. The rotation axes 10 of the suction cleaning device 1 and the base station 8 can be aligned with each other, for example, by fitting a portion of the corresponding support of the base station 8 for the rotation axis 10 into a corresponding recess in the suction cleaning device 1, such that the rotation axes 10 of the suction cleaning device 1 and the base station 8 are oriented relative to each other in a common direction, and the housing sealing element 7 and the base station sealing element 30 can be pivoted coaxially about the common rotation axis 10. Alternatively, the base station 8 can be designed as purely passive, i.e., without a base station fan 31, using the base station fan 31 inherent to the base station 8. In this case, for example, an external fan or the fan 3 of the suction cleaning device 1 can be used to generate negative pressure in the suction chamber 16 of the base station.

[0026] In principle, two different designs are possible for the position of the suction chamber 5 within the housing 2 of the suction cleaning device 1 and / or for the position of the base station suction chamber 16 within the base station 8. On one hand, for example, as shown, the wall of the suction chamber 5 can directly abut the outer wall of the housing 2 of the suction cleaning device 1. In this case, the regeneration opening 6 of the suction chamber 5 is simultaneously an opening of the housing 2 of the suction cleaning device 1. The base station 8 can also be designed similarly. The base station channel 17 can be omitted here. However, it is preferable to provide a flow channel, at least in the suction cleaning device 1 or in the base station 8, so that the pivoting of the housing closure element 7 and the base station closure element 30 can be achieved without limiting the capacity of the suction chamber 5 and / or the base station suction chamber 16.

[0027] Figure 2A partial area of ​​the suction cleaning device 1 and a partial area of ​​the base station 8 are shown. The boundary between the suction cleaning device 1 and the base station 8 is indicated by a dashed line. This line marks the transition between the suction cleaning device 1 and the base station 8. The shown partial area of ​​the suction cleaning device 1 has a separator 29 for separating the suction material from the airflow drawn into the suction cleaning device 1. The suction material chamber 5 and the fan 3 are associated with the separator 29. During the suction cleaning operation of the suction cleaning device 1, the suction material enters the suction channel 4 from the suction port 24 of the accessory device 23 and from there enters the separator 29, where the suction material is separated from the circulating airflow into the coarse material area 21 of the suction material chamber 5, and the pre-cleaned air, which in some cases still contains fine dust, continues to flow to the fine dust area 20 with the filter element 19. Subsequently, the air reaches the fan 3 and exits the housing of the suction cleaning device 1 through the auxiliary air opening 28. In order to remove the suction material collected in the coarse material area 21 and the fine dust area 20 from the suction material chamber 5 of the suction cleaning device 1 within the scope of the regeneration process, the suction cleaning device 1 has a regeneration opening 6, which allows external access to the suction material chamber 5 and the suction material located therein. For the regeneration process, the suction channel 4 of the suction cleaning device 1 can be closed by means of a channel sealing element 9, which has a sealing area 11 and a connecting area 12 on its end sides, the connecting area being as shown in... Figures 3 to 6 It acts on interface element 15 as shown in detail and is mechanically connected to interface element 15.

[0028] To regenerate the suction chamber 5, the suction cleaning device 1 and the base station 8 are connected to each other. In this state, the regeneration opening 6 of the suction chamber 5 of the suction cleaning device 1 is initially closed by means of the housing sealing element 7. In addition, the base station sealing element 30 of the base station 8 is in the closed position. Subsequently, the housing sealing element 7 and the base station sealing element 30 can be moved from their closed positions to the open positions around a common rotation axis 10.

[0029] Figure 3 and Figure 4 The closed positions of the closing elements 7 and 30 are shown. Figure 3 In or open location ( Figure 4The corresponding local areas of the suction cleaning device 1 and the base station 8 are shown. As illustrated, the channel sealing element 9, used to close the suction channel 4 during the regeneration process, is guided in the guide chute 13. The guide chute 13 extends from the section of the suction channel 4 located below the coarse material area 21 of the suction chamber 5 to the interface element 15. The interface element 15 is rotatably supported about the rotation axis 10 and rotates together with the housing sealing element 7 and the base station sealing element 30 when they pivot, so that when the regeneration opening 6 is opened, the suction channel 4 is simultaneously closed by means of the channel sealing element 9. In this way, the suction channel 4 is closed before the regeneration process begins, so that air, for example from the auxiliary air opening 28, reaches the base station 8 while flowing through the fine dust area 20. The suction channel 4, which connects the suction chamber 5 to the accessory device 23, is no longer flowed through.

[0030] The invention functions in such a way that the suction cleaning device 1 and the base station 8 are initially completely separated from each other relative to their flow paths. The sealing elements 7 and 30 on both sides close the suction chamber 5 of the suction cleaning device 1 or the base station channel 17 of the base station 8. In this state, the suction cleaning device 1 is then connected to the base station 8 so that regeneration of the suction chamber 5 can be subsequently performed by means of the base station 8. By means of... Figure 3 and Figure 4 When the suction cleaning device 1 is connected to the base station 8, the operating element 18 actuates the interface element 15 of the suction cleaning device 1. This causes the interface element 15 to rotate about the rotation axis 10 and move the housing closure element 7 of the suction cleaning device 1, the base station closure element 30 of the base station 8, and the channel closure element 9 of the suction cleaning device 1. According to the exemplary embodiment shown here, the movement of the closure elements 7, 9, and 30 is purely mechanical, achieved solely by the force applied when connecting the suction cleaning device 1 to the base station 8. Alternatively, the interface element 15 could also be a contact switch that triggers the operation of a drive motor configured to move the closure elements 7, 9, and 30. The drive motor is preferably part of the base station 8. In this design, it is particularly possible to achieve time-staggered movements of the closure elements 7, 9, and 30 relative to each other, especially the time offset between the housing closure element 7 and the base station closure element 30, and between the channel closure element 9. For example, the closure elements 7 and 30 can be opened first to remove coarse material, and then the suction channel 4 can be closed by means of the channel closure element 9 to remove fine dust.

[0031] according to Figure 4Closing the suction channel 4 allows not only the removal of material from the coarse material area 21 of the suction chamber 5, but also the removal of material from the fine dust area 20 and the filter element 19. For this purpose, the suction chamber 5, including the filter element 19 and the fine dust area 20, is flowed through from the rear, i.e., from the direction of the fan 3, so that the material falls off the filter element 19 and the fine dust area 20 and can flow into the base station 8 through the separator 29 and the coarse material area 21 of the suction chamber 5.

[0032] To design the flow path during the regeneration process, an alternative (not shown further here) exists in which the separator 29 is bypassed by means of a bypass, and the regeneration airflow only flows through the filter element 19, the fine dust region 20 of the suction chamber 5, and the coarse material region 21. This provides flow guidance passing alongside the separator 29. Furthermore, not only the separator 29 but also the coarse material region 21 of the suction chamber 5 can be bypassed, and only the filter element 19 and the fine dust region 20 can be regenerated. For example, in this case, only the filter element 19 and the fine dust region 20 can be regenerated in the first regeneration step, and only afterwards the separator 29 and / or the coarse material region 21 are regenerated. This regeneration in multiple steps, sequentially occurring in time, requires corresponding separate flow channels and valves for switching the flow paths. A switching device is also needed to switch the flow paths in time.

[0033] However, the variation shown in the accompanying drawings is advantageous, in which additional structures such as bypass channels can be omitted. Particularly preferably, the regeneration of the fine dust region 20 and the coarse dust region 21 is performed with a time delay relative to each other, with the coarse dust region 21 being regenerated first, followed by the fine dust region 20 and the filter element 19. To regenerate only the coarse dust region 21, the suction channel 4 can initially remain open, so that when the base station fan 31 is running, air is primarily drawn in through the suction channel 4 and flows essentially only through the coarse dust region 21, while the flow through the fine dust region 20 and the filter element 19 is negligible. Only after this is the channel sealing element 9 pushed into the suction channel 4 to block the flow path through the suction channel 4, and air flows to the base station 8 only through the filter element 19 and the fine dust region 20. To achieve sequential switching of the flow path in time, a switching device or transmission device is also required as a supplement to the embodiment shown in the figures. Of particular advantage is that coarse material is first removed from the coarse material zone 21 so that a flow path for the suction material removed from the filter element 19 and the fine dust zone 20 can subsequently be established. Time control, for example, switching the flow path after a defined time interval, such as a time window of 30 seconds, 1 minute, or a similar order of magnitude, is advantageous. Furthermore, regularly repeated switching is also possible, in which the coarse material regeneration path and the fine dust regeneration path are alternately activated multiple times.

[0034] The channel closure element 9 here is, for example, a flexible strip made of plastic or metal, which is slidably supported within the guide groove 13. The inherent stiffness of the channel closure element 9 allows tensile and shear forces to be transmitted from the connection area 12 of the channel closure element 9 to the closed area 11 of the channel closure element 9. The guide groove 13 can be a channel or recess within the housing 2 of the suction cleaning device 1. The movement of the channel closure element 9 can occur simultaneously with the movement of the housing closure element 7 and the base station closure element 30, as shown in the example here, but this is not necessary. Alternatively, a transmission device can be used, for example, to stagger these movements in time, so that the aforementioned coarse material removal can be performed first, and then the suction channel 4 can be closed by means of the channel closure element 9 to regenerate the fine dust area 20 and the filter element 19.

[0035] List of reference numerals

[0036] 1. Suction cleaning equipment

[0037] 2. Shell

[0038] 3 fans

[0039] 4. Suction Channel

[0040] 5. Suction chamber

[0041] 6 Regeneration opening

[0042] 7. Housing enclosure element

[0043] 8 base stations

[0044] 9-channel enclosed element

[0045] 10 Rotation axis

[0046] 11. Enclosed Area

[0047] 12 Connecting Areas

[0048] 13 Guide Slide

[0049] 14 Interfaces

[0050] 15 Interface Components

[0051] 16 Base station suction chamber

[0052] 17 Base Station Channels

[0053] 18. Control elements

[0054] 19 Filter elements

[0055] 20 Fine dust area

[0056] 21 Coarse Material Area

[0057] 22 Basic equipment

[0058] 23. Accessory Equipment

[0059] 24 Suction Port

[0060] 25 handle

[0061] 26 handles

[0062] 27 Switches

[0063] 28. Auxiliary air opening

[0064] 29. Separator

[0065] 30 Base Station Enclosure Components

[0066] 31 Base station fan

Claims

1. A suction cleaning device (1) having a housing (2) which encloses a fan (3), a suction channel (4) and a suction chamber (5), the housing having a regeneration opening (6) which enables a flow connection to the suction chamber (5), the regeneration opening being closable by means of a movable housing closure element (7), wherein During the suction cleaning operation of the suction cleaning device (1), the suction material can be transported from the surface to be cleaned through the suction channel (4) into the suction material chamber (5), and wherein, during the regeneration operation of the suction cleaning device (1), the collected suction material can be transported from the suction material chamber (5) through the open regeneration opening (6) to the base station (8) connected to the suction cleaning device (1) in a flow technology, wherein the suction channel (4) is equipped with a movable channel closure element (9), characterized in that the suction cleaning device (1) has a conversion device, the conversion device being configured to, during the regeneration operation, connect the channel closure element (9) and the housing seal The closing element (7) switches sequentially in time, such that when the suction channel (4) is open, the regeneration opening (6) is first opened by moving the housing closing element (7), and then the suction channel (4) is closed by moving the channel closing element (9). The channel closing element (9) is operatively connected to the housing closing element (7), such that the movement of the housing closing element (7) causes the movement of the channel closing element (9), thereby causing the closure of the channel closing element (9) by opening the housing closing element (7), and causing the closure of the housing closing element (7) to open the channel closing element (9).

2. The suction cleaning device (1) according to claim 1, characterized in that The channel closure element (9) is movable relative to the suction channel (4).

3. The suction cleaning device (1) according to claim 2, characterized in that, The channel closure element (9) is slidably supported.

4. The suction cleaning device (1) according to claim 1, characterized in that, The channel sealing element (9) is connected to the housing sealing element (7) by means of a mechanical action device.

5. The suction cleaning device (1) according to claim 4, characterized in that, The housing closure element (7) is pivotally supported on the rotation shaft (10), and the channel closure element (9) is connected to the housing closure element (7) and / or the rotation shaft (10) in a force-transmitting manner.

6. The suction cleaning device (1) according to claim 1, characterized in that, The channel sealing element (9) has a flexible band that has a sealing area (11) on one side to close the suction channel (4) and a connection area (12) on the other side for mechanical coupling with the housing sealing element (7).

7. The suction cleaning device (1) according to claim 6, characterized in that, The flexible strip is a plastic strip.

8. The suction cleaning device (1) according to claim 1, characterized in that, The channel closure element (9) is slidably supported in the guide groove (13), which is constructed between the housing closure element (7) and the suction channel (4).

9. The suction cleaning device (1) according to claim 1, characterized in that, The suction cleaning device (1) has an interface (14) for connecting to a base station (8), wherein the interface (14) has an interface element (15) operatively connected to the housing closure element (7) and / or the channel closure element (9), and the interface element can be manipulated to close the suction channel (4) by means of the channel closure element (9) when the suction cleaning device (1) is connected to the base station (8).

10. A system having a suction cleaning device (1) and a base station (8), wherein, The suction cleaning device (1) is a suction cleaning device (1) according to any one of claims 1 to 9, wherein the base station (8) has a base station suction chamber (16) and a base station channel (17), the base station channel being used to establish a flow connection between the base station suction chamber (16) and the regeneration opening (6) of the suction cleaning device (1), and wherein the base station (8) has an actuating element (18) for applying action to the interface element (15) and / or the housing closure element (7) and / or the channel closure element (9) of the suction cleaning device (1) connected to the base station (8).

11. The system according to claim 10, characterized in that, When the regeneration opening (6) is opened by means of the housing closure element (7) and the suction channel (4) is closed by means of the channel closure element (9), the suction chamber (5) of the suction cleaning device (1) and the base station suction chamber (16) of the base station (8) are fluidly connected to each other, such that the regeneration airflow for regenerating the suction chamber (5) can pass through the fine dust area (20) of the suction chamber (5) with the filter element (19) and / or the coarse material area (21) of the suction chamber (5) without passing through the suction channel (4) and then flow into the base station suction chamber (16) through the regeneration opening (6) of the suction cleaning device (1) and the base station channel (17) of the base station (8).

Images