CN111067417B

CN111067417B - Suction cleaning device with a chamber cover closing a filter chamber

Info

Publication number: CN111067417B
Application number: CN201811220315.1A
Authority: CN
Inventors: B.萨利斯; H-P.阿诺德; M.塞尔奈奇; M.科内利森; 刘王桥
Original assignee: Vorwerk and Co Interholding GmbH
Current assignee: Vorwerk and Co Interholding GmbH
Priority date: 2018-10-19
Filing date: 2018-10-19
Publication date: 2022-11-15
Anticipated expiration: 2038-10-19
Also published as: DE102019128051B4; CN111067417A; DE102019128051A1

Abstract

The invention relates to a suction cleaning device (1) having a filter chamber (2) and a chamber cover (3) which closes the filter chamber (2), wherein the chamber cover (3) has a filter bag receptacle (4) for fastening a filter bag (5). In order to be able to exchange the filter bag (5) comfortably, it is proposed that the cover (3) has a cover edge region (6), by means of which cover edge region (6) the cover (3) can be detachably mounted on an adapted chamber edge region (7) of the filter chamber (2) without auxiliary means, wherein at least one partial region of the cover edge region (6) engages with the chamber edge region (7) of the filter chamber (2) in such a way that the cover (3) can be rotated relative to the filter chamber (2).

Description

Suction cleaning device with a chamber cover closing a filter chamber

Technical Field

The invention relates to a suction cleaning device having a filter chamber and a chamber cover closing the filter chamber, wherein the chamber cover has a filter bag receptacle for fastening a filter bag.

Background

Suction cleaning devices of the above-mentioned type are generally known in the prior art. Such a suction cleaning device may be, for example, a hand-held cleaner or an autonomous travelling cleaner. The extractor cleaning device may have an accumulator for energy supply or alternatively be powered by the domestic power grid.

It is known to fasten the filter bag from the inside to a cover which can be moved into an open or closed position relative to the filter chamber. The housing cover has a holding device for fastening the filter bag, wherein the filter bag usually has a holding plate to be connected with the filter bag receptacle. After the filter bag has been fastened to the cover, the user can pivot the cover in the direction of the filter chamber until the filter bag is arranged in the filter chamber. After the filter bag has been transferred into the filter chamber by means of the chamber cover, the suction cleaning device can be used for suction operation.

Furthermore, it is known in the prior art to mount the chamber cover on the suction cleaning device in a rotatable manner by means of a hinge. DE 20 2015 101 040 U1, for example, discloses a suction cleaning device, in which a chamber cover is supported on one side by a hinge on a housing of the suction cleaning device, so that the chamber cover can be pivoted by rotation into the opening plane of the filter chamber in order to close the suction cleaning device.

Although the suction cleaning devices known from the prior art with filter bags fastened to the chamber cover have proven suitable, it is uncomfortable for the user to have to reach into the open gap between the chamber cover and the filter chamber in order to replace the filter bag, if necessary. In particular, the filter bag receiving part and the adapted elements of the filter bag have to be guided relative to one another, which can be uncomfortable in a stooped position if necessary.

Disclosure of Invention

Based on the prior art described above, the object of the invention is to provide a suction cleaning device with a housing cover which accommodates a filter bag and which allows a comfortable filter bag exchange.

In order to solve the above-mentioned problem, it is proposed that the chamber cover has a cover edge region, by means of which the chamber cover can be detachably supported on an adapted chamber edge region of the filter chamber without auxiliary means, wherein at least one partial region of the cover edge region engages with the chamber edge region of the filter chamber in such a way that the chamber cover can be rotated relative to the filter chamber.

In contrast to the prior art, the suction cleaning device according to the invention is characterized in that the chamber cover is freely supported on the housing of the suction cleaning device, so that the chamber cover can be detached from the suction cleaning device without tools and transported together with the filter bags arranged thereon, for example, to a refuse removal container. Furthermore, it is not necessary to install a hinge for the chamber cover on the suction cleaning device, which is advantageous in particular with regard to manufacturing effort and manufacturing costs. The cover according to the invention has a cover edge region which can engage an adapted cover edge region of the filter chamber, so that the contact region between the cover edge region and the cover edge region forms a center point for the rotation of the cover and enables the rotation of the cover relative to the filter chamber. The removable cover simultaneously serves as a load-bearing aid for the filter bag for the user. In order to remove the chamber cover from the filter chamber, no fine movements are required, since the cover edge region of the chamber cover preferably rests only against the chamber edge region of the filter chamber. The filter bag on the cover itself can then be replaced in the state in which the cover is removed, which is also suitable for precise manual operation, since the user does not have to bend down, for example, in the direction of the suction cleaning device. The filter bag itself can be removed on the filter bag receptacle, preferably by moving, wherein in particular only a linear movement is required in order to separate the filter bag from the cavity cover. The user can perform this linear movement in an upright position without having to bend down in the direction of the suction cleaning device. The installation of the housing cover into the filter chamber then takes place in the reverse order, so that the user first places the housing cover with the cover edge region against the adapted housing edge region of the filter chamber, and then performs a rotation about the contact line between the cover edge region and the adapted housing edge region in order to close the filter chamber. The geometry of the cover and the filter chamber is advantageously designed such that in the closed state of the filter chamber a self-locking of the cover on the filter chamber occurs and therefore the cover cannot be removed without user manipulation.

Furthermore, it is proposed that the cover edge region and the chamber edge region correspond to the lowest point of the chamber cover with respect to the spatial orientation of the suction cleaning device during a normal cleaning operation. According to this embodiment, the contact point between the cover edge region and the chamber edge region is located in the lowermost partial region of the opening plane of the filter chamber in the usual position of use of the suction cleaning device. The user can thus preferably initially support the cover on the chamber edge region, i.e. by means of the cover edge region of the cover, so that the weight of the cover together with the filter bag rests on the chamber edge region. The rotation of the chamber cover relative to the filter chamber can thereby be carried out particularly simply.

It is furthermore proposed that the chamber cover has a handle element for removing the chamber cover from the suction cleaning device. The handle element serves on the one hand as a guide element and on the other hand as a carrying handle for the user, so that the cover can be grasped particularly simply, for example with the fingers, in order to remove it from the suction cleaning device and to carry it to another location.

It is proposed that the chamber cover has an actuating element for unlocking a locking element of the chamber cover. Such an operating element may be, for example, an operating button, an operating lever or the like. According to a particularly preferred embodiment, the actuating element is simultaneously designed as a handle element for removing the chamber cover from the suction cleaning device. In this way, the user basically only has to perform a single movement in order to unlock the chamber cover from the housing of the suction cleaning device on the one hand and to deflect and remove the chamber cover from the suction cleaning device on the other hand.

In particular, it is proposed that the handle element and/or the actuating element be arranged on a locking region of the chamber cover opposite the cover edge region. The operating element and the locking element are thus facing away from the rotation region of the chamber cover and are located in a position in which the gap between the chamber cover and the suction cleaning device is open when the chamber cover is deflected. The contact area of the chamber cover on the chamber edge region remains unchanged during the operation of the operating element and forms the center of rotation. Since the centre of rotation is preferably arranged (in terms of the usual orientation of the suction cleaning apparatus during suction operation) at the lower end of the chamber cover as described above, the rotation of the chamber cover is facilitated. The handle element is also preferably located on the upper side of the cover facing away from the center of rotation, so that the greatest possible proportion of the weight of the cover hangs on the handle element. The handling of the chamber cover when opening the filter chamber is thereby particularly simple.

It is furthermore proposed that the cover edge region of the chamber cover has at least one hook-shaped clamping element for fastening the chamber cover to the chamber edge region, wherein the clamping element is designed to engage with the chamber edge region in a manner adapted to the chamber edge region. According to a preferred embodiment, the cover edge region has three clamping elements. The one or more clamping elements form a partial region of the cover edge region which can engage with the cavity edge region. Preferably, the hook-shaped clamping element (in terms of the position of the chamber cover connected to the filter chamber) is located on the inner side of the chamber cover facing in the direction of the filter chamber. This design is used to guide the chamber cover close to the suction cleaning device by rotation. The clamping element is preferably located on the underside of the chamber cover. In the preferred case of a total of three clamping elements, for example, the two outer clamping elements can be used as a rotation point during the installation of the chamber cover into the opening of the filter chamber, while the two outer clamping elements and the inner clamping element are then fixing elements in the locked state of the chamber cover and the filter chamber, which fix the chamber cover by self-locking.

In this connection, it is preferably provided that the chamber edge region has a receiving structure adapted to the form of the clamping element for receiving at least one clamping element, wherein the clamping element engages in the receiving structure for fixing the chamber cover on the chamber edge region. The receiving structure of the chamber edge region serves for positioning the chamber cover when it is arranged on the suction cleaning device for the user, in that the user can visually or tactually know which position and orientation the chamber cover needs to take on the housing of the suction cleaning device in order to be able to be pivoted into the opening of the filter chamber. The receiving structure can provide a limited, separate receiving volume, for example, by means of walls, ribs or the like, into which a respective clamping element can be inserted in a form-fitting manner. The chamber cover is thus oriented relative to the suction cleaning device, so that the chamber cover can be rotated in order to close the filter chamber. In the case of a chamber cover having three clamping elements, it is proposed that the receiving structure of the chamber edge region likewise have three receiving volumes, which are designed to be form-fitted to the clamping elements.

Finally, it is proposed that the filter bag receiving part has a guide slot for receiving a retaining plate of the chamber cover. The guide runner is adapted to indicate to the user the defined orientation of the holding plate on the cavity cover. The holding plate and the guide runner preferably have a shape encoder, so that they can be fixed relative to one another only in a defined relative position and orientation. According to an exemplary embodiment, the cavity cover may have two guide tabs which can be inserted into adapted guide channels of the holding plate. In this case, the user guides the retaining plate by means of the guide webs in order to fix the filter bag on the housing cover, wherein the movement path predefined by the guide webs is guided as far as the end stop of the retaining plate on the housing cover. The guided movement prevents the user from tilting the retaining plate relative to the chamber cover or, in the worst case, mounting the retaining plate in the wrong orientation, which then prevents the filter chamber from being closed by means of the chamber cover.

Drawings

The invention is further illustrated by the following examples. In the drawings:

figure 1 shows a suction cleaning device according to the invention,

figure 2 shows the suction cleaning device with the chamber cover in the open state,

figure 3 shows the suction cleaning device with the chamber cover removed,

figure 4 shows the chamber cover with the filter bag thereon,

figure 5 shows a suction cleaning device with an open filter chamber.

Detailed Description

Fig. 1 shows a suction cleaning device 1 according to the invention, which suction cleaning device 1 is designed here, for example, as a vacuum cleaner which is operated by batteries. The suction cleaning device 1 is provided with a housing 15, which housing 15 has a shaped handle 16 (see fig. 2) for guiding the suction cleaning device 1 by a user. On the side of the suction cleaning device 1 facing away from the handle 16, the housing 15 has a suction connection 14, to which an accessory, here for example a bottom suction nozzle 18, is connected.

The suction cleaning device 1 has a motor-fan unit, not shown in detail, for drawing suction into the suction cleaning device 1. On the lever 16, for example, there are a switch (not shown) for turning the motor-fan unit on and off and a selector switch (not shown) by means of which different power levels of the motor-fan unit can be selected.

Furthermore, the suction cleaning device 1 is provided with a filter chamber 2, the filter chamber 2 being closable with a chamber cover 3. The chamber cover 3 is part of the housing 15 and can be fitted into an opening of the housing 15, which opening is provided in the suction cleaning device 1, as shown in fig. 1, so that the chamber cover 3 lies flush against the shape of the housing 15. For this purpose, the chamber cover 3 is fitted into an opening provided in the suction cleaning device 1, which opening has a chamber edge region 7 of the filter chamber 2.

Fig. 2 shows the suction cleaning device 1 with the filter chamber 2 open, the chamber cover 3 being pivoted away from the housing 15 of the suction cleaning device 1. The cover 3 rests with the cover edge region 6 against a chamber edge region 7 of the filter chamber 2, wherein the chamber edge region 7 simultaneously defines the axis of rotation for the cover 3. To start the rotation of the chamber cover 3, the chamber cover 3 has a grip element 8 on its outwardly pointing wall, which grip element 8 at the same time forms an actuating element 9 for the locking mechanism of the chamber cover 3. The locking mechanism comprises, in addition to the operating element 9, one or more locking elements 10, which locking elements 10 are shown in fig. 3 and 4. The locking element 10 is hook-shaped and can be deflected by actuating the actuating element 9 in such a way that the locking element 10 engages a suitable edge region of the filter chamber 2 and locks the chamber cover 3 on the filter chamber 2. The grip element 8 or the actuating element 9 is arranged in a locking region 11 of the chamber cover 3, which locking region 11 is opposite the cover edge region 6 and the chamber edge region 7, which provide a center of rotation for the tilting of the chamber cover 3.

As can also be seen from fig. 3 and 4, the chamber cover 3 carries the filter bag 5, so that the chamber cover 3 together with the filter bag 5 can be separated from the suction cleaning device 1 and the user can particularly easily access the filter bag 5, for example, in order to replace the filter bag 5 without having to reach into the filter chamber 2 with his hand. The filter bag 5 is fixed to the filter bag receiving section 4 of the chamber cover 3 by means of a holding plate 19 associated with the filter bag 5. The filter bag receiving section 4 provides a guide chute, not shown in detail, for the holding plate 19. When, for example, a new filter bag 5 is inserted into the suction cleaning device 1, the user first fixes the filter bag 5 to the housing cover 3 by means of the retaining plate 19 of the filter bag 5, and then fixes the housing cover 3 together with the filter bag 5 to the suction cleaning device 1, so that the filter bag 5 fixed to the housing cover 3 projects into the filter chamber 2. In the installed state of the filter bag 5 and when the filter chamber 2 is closed by means of the chamber cover 3, the filter bag 5 is then in the flow path inside the suction cleaning device 1, which is guided from the suction connection 14 through the filter chamber 2 towards the motor-fan unit. In addition, a motor protection filter 17 is also present in this flow path between the filter bag 5 and the motor-fan unit, the motor protection filter 17 likewise being arranged on the housing cover 3 according to fig. 3. The motor protection filter 17 protects the motor-fan unit in case the user is not loading the filter bag 5 but is operating the suction cleaning device 1.

The suction operation of the suction cleaning device 1 functions in the usual manner, i.e. the user switches on the suction cleaning device 1 and thus operates the motor-fan unit. As a result, a negative pressure is generated at the suction connection 14 or the bottom nozzle 18. As a result of this underpressure, the air loaded with the suction is passed through the suction connection 14 into the filter bag 5. For this purpose, the filter bag 5 is provided with a mouth which can be closed with a closure, for example a flexible flap, or opened by underpressure. The suction present in the suction flow is blocked by the filter material of the filter bag 5, so that only cleaned air can flow to the motor-fan unit, while the suction remains inside the filter bag 5.

Fig. 4 shows a view of the side of the viewing chamber cover 3 facing the filter chamber 2 in detail. Here, the chamber cover 3 has been equipped with a filter bag 5, which filter bag 5 is accommodated in the filter bag accommodation 4 of the chamber cover 3 by means of its holding plate 19. The housing cover 3 has, at an end region remote from the filter bag receptacle 4, a latching region 11 with a latching element 10 arranged on the inner wall, the latching element 10 being deflectable by actuation of the actuating element 9 (see fig. 1 to 3) in such a way that the latching element 10 does not protrude beyond the contour of the housing cover 3 and the housing cover 3 can therefore be released from an adapted housing partial region of the suction cleaning appliance 1. The end region of the chamber cover 3 opposite the locking region 11 has a total of three clamping elements 12, the clamping elements 12 being designed in the form of hooks which project inwardly and downwardly from the inner side of the chamber cover 3. Without auxiliary means, the chamber cover 3 can be detachably connected to the adapted chamber edge region 7 of the filter chamber 2 by means of these clamping elements 12, by supporting the chamber cover 3 on the chamber edge region 7 by means of its clamping elements 12. The contact region between the hook-shaped clamping element 12 and the chamber edge region 7 forms a rotational axis for the chamber cover 3, about which the chamber cover 3 can be pivoted relative to the suction cleaning device 1 in order to open or close the opening of the filter chamber 2.

As further shown in fig. 5, the chamber edge region 7 of the filter chamber 2 has a receiving structure 13, which receiving structure 13 has individual receiving volumes adapted to the clamping elements 12, into each of which a clamping element 12 can be inserted. In this case, the clamping element 12 engages in the receiving structure 13 in order to fix the chamber cover 3 on the chamber edge region 7. This makes it possible for the user to arrange the chamber cover 3 on the suction cleaning device 1 in a precisely fitting manner, so that the filter chamber 2 can be closed optimally in a form-fitting manner when the chamber cover 3 is deflected relative to the suction cleaning device 1, i.e. about the chamber edge region 7 on which the clamping element 12 rests. The receiving structure 13 and the clamping element 12 form a rotary plug connection which can be released without auxiliary means, so that the chamber cover 3 can be separated from the adapted chamber edge region 7 of the filter chamber without the aid of tools.

As shown in the process according to fig. 1 to 3, the chamber cover 3 can simultaneously serve as a support aid for the filter bag 5 fastened thereto. When the user for example wants to replace the filter bag 5 of the suction cleaning device 1, he pulls the operating element 9, which is designed in the form of a lever, that is to say pulls the operating element 9 towards himself. Thereby, the locking element 10 is moved to the rear of the contour of the cavity cover 3, so that the cavity cover 3 can be rotated away from the suction cleaning device 1 as shown in fig. 2. At this point, the user can remove the chamber cover 3 from the suction cleaning device 1 by removing the chamber cover 3 from the chamber edge region 7. The clamping element 12 is simultaneously separated from the cavity edge region 7. The operating element 9 simultaneously serves as a handle element 8, on which handle element 8 the user can lift the housing cover 3 together with the filter bag 5. This enables particularly hygienic transport. At this point, the user can lift the cavity cover 3 with the filter bag 5 to a trash removal position, in which the user can detach the filter bag 5 from the cavity cover 3 by detaching the retaining plate 19 from the filter bag housing 4, for example by linear movement. The user can then remove the old filter bag 5 of waste and fix the new filter bag 5 by means of its holding plate 19 on the filter bag receiving portion 4 of the chamber cover 3. The user then places the chamber cover 3 again on the lowermost chamber edge region 7 of the opening of the filter 2 with respect to the drawing and closes the filter chamber 2 by pivoting. During the rotation, the clamping element 12 presses against the chamber edge region 7 and serves on the one hand as a rotation point and on the other hand as a positioning point for the chamber cover 3 until the chamber cover 3 likewise rests against the filter chamber 2 in the opposite locking region 11 and ensures self-locking of the chamber cover 3. In this position, the chamber cover 3 can no longer be removed from the suction cleaning device 1 without operating the operating element 9.

List of reference numerals

1. Suction cleaning device

2. Filter cavity

3. Cavity cover

4. Filter bag containing part

5. Filter bag

6. Cover edge region

7. Cavity edge region

8. Handle element

9. Operating element

10. Locking element

11. Locking area

12. Clamping element

13. Containing structure

14. Suction connection end

15. Shell body

16. Handle bar

17. Motor protection filter

18. Bottom suction nozzle

19. Fixing board

Claims

1. A suction cleaning device (1) having a filter chamber (2) and a chamber cover (3) which closes the filter chamber (2), wherein the chamber cover (3) has a filter bag receptacle (4) for fastening a filter bag (5), characterized in that the chamber cover (3) has a cover edge region (6), by means of which cover edge region (6) the chamber cover (3) can be detachably supported on an adapted chamber edge region (7) of the filter chamber (2) without auxiliary means, wherein at least one partial region of the cover edge region (6) engages with the chamber edge region (7) of the filter chamber (2) in such a way that the chamber cover (3) can be rotated relative to the filter chamber (2), wherein the cover edge region (6) of the chamber cover (3) has three hook-shaped clamping elements (12) for fixing the chamber cover (3) on the chamber edge region (7), wherein the clamping elements (12) are designed in a manner adapted to the chamber edge region (7) such that the clamping elements (12) engage the chamber edge region, wherein two outer clamping elements (12) serve as rotation points during the installation of the chamber cover (3) into the opening of the filter chamber (2), and the two outer clamping elements and one inner clamping element (12) lock the chamber cover (3) to the filter chamber (2) In the fixed state, the fixing element fixes the cavity cover (3) by self-locking.

2. A suction cleaning device (1) according to claim 1, characterized in that the cover edge region (6) and the chamber edge region (7) correspond to the lowest point of the chamber cover (3) in terms of the spatial orientation of the suction cleaning device during the cleaning operation.

3. The suction cleaning device (1) according to claim 1, characterized in that the chamber cover (3) has a handle element (8) for removing the chamber cover (3) from the suction cleaning device (1).

4. A suction cleaning device (1) according to claim 1, characterized in that the chamber cover (3) has an operating element (9) for unlocking a locking element (10) of the chamber cover (3).

5. The suction cleaning device (1) according to claim 4, characterized in that the operating element (9) is simultaneously designed as a handle element (8) for removing the chamber cover (3) from the suction cleaning device (1).

6. A suction cleaning device (1) according to claim 3, characterized in that the handle element (8) is arranged on a locking region (11) of the chamber cover (3) opposite the cover edge region (6).

7. A suction cleaning device (1) according to claim 4, characterized in that the operating element (9) is arranged on a locking region (11) of the chamber cover (3) opposite the cover edge region (6).

8. The suction cleaning device (1) according to claim 1, characterized in that the chamber edge region (7) has a receiving structure (13) adapted to the shape of the clamping element (12) for receiving the clamping element (12), wherein the clamping element (12) engages in the receiving structure (13) in order to fix the chamber cover (3) on the chamber edge region (7).

9. A suction cleaning device according to claim 1, characterized in that the filter bag receiving part (4) has guide slots for receiving the holding plates (19) of the filter bags (5).