CN111067415A

CN111067415A - Suction cleaning device with a chamber cover having a locking device

Info

Publication number: CN111067415A
Application number: CN201811220343.3A
Authority: CN
Inventors: H-P.阿诺德; B.萨利斯; 钟瑜; M.塞尔奈奇
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: 2020-04-28
Anticipated expiration: 2038-10-19
Also published as: CN111067415B; DE102019128050A1

Abstract

The invention relates to a suction cleaning device (1) having a filter chamber (2) and a filter bag (4) having a retaining plate (3), wherein the filter chamber (2) has a chamber cover (5), wherein the chamber cover (5) has a locking device (6) having a spring element (7) on the inner side facing the filter chamber (2), wherein the locking device (6) is adapted to the retaining plate (3) of the filter bag (4) and is designed such that the chamber cover (5) can be moved into a closed state of the filter chamber (2) only when the retaining plate (3) of the filter bag (4) moves the locking device (6) into a release position against the restoring force of the spring element (7). In order to advantageously improve the suction cleaning device (1), it is proposed that the locking device (6) be arranged on a cover edge region (8) of the chamber cover (5), which cover edge region (8) can engage a chamber edge region (9) of the filter chamber (2) in order to close the filter chamber (2), wherein the locking device (6) is adapted to the chamber edge region (9) and is designed and arranged such that the locking device (6) strikes the chamber edge region (9) in a preferred position corresponding to the relaxed state of the spring element (7) and prevents the cover edge region (8) from engaging the chamber edge region (9).

Description

Suction cleaning device with a chamber cover having a locking device

Technical Field

The invention relates to a suction cleaning device having a filter chamber and a filter bag having a retaining plate, wherein the filter chamber has a chamber cover which has a locking device with a spring element on the inner side facing the filter chamber, wherein the locking device is adapted to the retaining plate of the filter bag and is designed such that the chamber cover can be moved into a closed state of the filter chamber only when the retaining plate of the filter bag moves the locking device into a release position against the restoring force of the spring element.

Background

Suction cleaning devices of the above-mentioned type are well 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. In order to be able to insert and remove the filter bag into and from the filter chamber of the suction cleaning device, the filter chamber has a chamber cover which can be moved into an open or closed position. In order to close the filter chamber by means of the chamber cover, the user can apply the edge region of the chamber cover to the chamber edge region of the filter chamber and perform a rotation in order to close the existing opening gap by rotation.

If the user of the suction cleaning device does not correctly fit the filter bag into the filter chamber, for example by tilting the filter bag, or forgets to install the filter bag, the locking device prevents the filter chamber from being able to be closed by means of the chamber cover.

For example, DE 202015101040U 1 discloses a suction cleaning device with a locking element arranged on the cover, which engages in the recess of the filter chamber when the filter bag is not installed in the filter chamber and thus prevents complete closure of the filter chamber, i.e. the cover is pivoted against the filter chamber. Only when the filter bag is properly installed in the filter chamber is the locking element of the chamber cover guided such that it does not engage in the recess. This ensures that the filter chamber can be completely closed by the chamber cover.

Although the locking devices known from the prior art for suction cleaning devices have proven suitable, these locking devices require a high outlay in terms of production, since there are a large number of different elements on the chamber cover and the filter chamber which interact for the locking function.

Disclosure of Invention

Based on the prior art described above, the object of the present invention is to provide a suction cleaning device with a locking device which requires a low material consumption and manufacturing effort on the one hand, but which is optimally designed to be robust on the other hand.

In order to solve the above-mentioned problem, it is proposed that a locking device be arranged on a cover edge region of the chamber cover, which can engage with a chamber edge region of the filter chamber for closing the filter chamber, wherein the locking device is adapted to the chamber edge region and is arranged such that, in a preferred position corresponding to the relaxed state of the spring element, the locking device strikes the chamber edge region and prevents the cover edge region from engaging with the chamber edge region.

The invention thus provides a locking device which makes it possible in a particularly simple manner to close the filter chamber by means of the chamber cover only when the locking device is moved by the arrangement of the filter bag and therefore no longer impinges on the chamber edge region of the filter chamber. In the opposite case, i.e. if the filter bag or the fixing plate is not arranged, the filter chamber cannot be closed. The locking device is preferably arranged in a cover edge region of the cover adjacent to the center of rotation of the cover, wherein the locking device in the preferred position increases the effective length value of the cover beyond the maximum permissible length value of the cover for engaging the cover on the filter chamber, and the cover can no longer be rotated into the recess of the filter chamber, but rather impacts against the cover edge region of the filter chamber. Preferably, the locking device is arranged so as to be retracted on the lid edge region that a user cannot manually act on the locking device or its spring element and close the filter chamber without the holding plate being inserted. This can be ensured by the locking device having a minimum spacing from the lid edge of the lid edge region, for example offset by about 10mm or more inwardly in the lid edge region and/or being arranged behind a projection projecting from the lid edge region, which projection prevents a user from interfering with the locking device.

For changing the filter bag, the chamber cover can preferably be completely separated from the suction cleaning device. The user can then conveniently load the filter bag into the filter chamber without being hindered by the very limited rotational area between the filter chamber and the chamber cover. The locking means are located in the region of the chamber cover adjacent to the retaining plate of the filter bag. In the case of an unfilled filter bag, the locking device is in a removed state in which it increases the effective length of the cover, so that the cover no longer fits into the opening of the filter chamber. However, if the user inserts the filter bag, the locking device of the chamber cover is moved so that the filter chamber can be completely closed by means of the chamber cover. In contrast to the prior art, the chamber cover is changed by the locking device, i.e. as a result of the proposed change in the effective length value of the chamber cover, as a whole with regard to the fitting shape of the chamber cover in the filter chamber, so that the locking device strikes the adapted chamber edge region of the filter chamber and prevents the filter chamber from closing.

According to a preferred embodiment, it is proposed that the locking device is a spring bracket arranged on the chamber cover. According to this embodiment, the locking device and the spring element are not separate elements of the chamber cover, but are formed as part of the chamber cover. The spring bracket forms the locking device and has the spring force required for the function. The spring bow is preferably made of a resilient and dimensionally stable material, in particular metal. According to a particularly simple embodiment, the spring bow can be produced, for example, from a wire which is shaped to produce a projection which can be moved relative to the chamber cover. The spring bracket can be connected to the chamber cover in different ways, for example, in that a clamping or latching connection holds at least one free end region of the spring bracket on the chamber cover. However, according to a particularly preferred embodiment, the spring bracket is mounted in its entirety so as to be rotatable or displaceable relative to the chamber cover. For this purpose, the spring bracket can be located, for example, at least partially in a groove formed by the material of the chamber cover or between end stops and can rotate therein without being fixed with respect to its rotational movement. As an alternative to the spring bracket, it can also be provided that the locking device of the cover has a tappet, a tongue, a rib, a screw, a gear, a belt or the like. It is important in the sense of the invention that the fitting shape or length value of the chamber cover is changed in such a way that the locking device, which is in the preferred position relaxed with respect to the spring element, strikes the adapted chamber edge region of the filter chamber in advance before the cover edge region can engage the chamber edge region for the complete closing process of the filter chamber.

The preferably proposed spring bracket can be of substantially U-shaped design and has two parallel arms and an intermediate region connecting the two arms. The U-shaped basic shape of the spring bracket provides a projection serving as a locking device, which can be displaced, for example deflected, about a rotational axis oriented parallel to the central region and thus allows or prevents the filter chamber from being closed. The U-shape can be bent particularly simply from a wire which, depending on the hardness of the wire, is very strong on the one hand and is advantageous in terms of manufacturing effort and manufacturing costs on the other hand.

In this case, it is proposed that the U-shaped arms each have an end region pointing outward, facing away from the central region, wherein the two end regions form the axis of rotation for the spring bracket. According to this embodiment, the end regions of the U-shaped arms, not the U-shaped arms themselves, but rather the extended U-shaped arms, are supported on the cavity cover, said end regions being angled away from the U-shaped arms and being oriented parallel to the central region, for example. The bent end region can preferably define a rotational axis about which the spring bow as a whole can be deflected. The end region can be clamped to the chamber cover, for example, by means of a screw. Alternatively, the end region can also be mounted freely rotatably on the cavity cover, for example between a partial region of the cavity cover and a fastening element, for example a bolt head of a bolt connected to the cavity cover. The pretensioning of the locking device occurs when the spring bracket is forced to rotate by the installation into the filter bag or its holding plate. If the filter bag is removed again, the retaining plate of the filter bag no longer presses against the locking device, and the locking device can be moved with the restoring spring force of the spring bow into a preferred position in which the closing of the filter is prevented.

As an alternative to the spring bracket which simultaneously forms the locking device, it is proposed that the locking device is provided with a separate spring element, wherein the locking device can be moved by means of the retaining plate against the restoring force of the spring element. According to this embodiment, the locking device and the spring element are separate elements of the locking mechanism, wherein the spring element acts on the locking device and, if no retaining plate or filter bag is present, moves the locking device into the preferred position with the restoring force. The locking means may be an element rotatably arranged on the chamber cover, such as a rotatable rib or the like. The locking means may be formed from a plastics material, a metal or a composite material. As an alternative to the rotatability, it is also possible for the locking device to be arranged on the cover in a linearly displaceable manner, in order to increase or decrease the important length value of the cover for closing the filter chamber.

Furthermore, it is proposed that the chamber edge region engages in a rotational region and/or a displacement region of the locking device in the closed state of the filter chamber by means of the chamber cover. In the retracted position of the locking device, the chamber cover can be inserted into a recess of the filter chamber provided for the chamber cover, so that the chamber cover forms a part of the wall of the filter chamber and/or a part of the outer housing of the suction cleaning device in a form-fitting manner. In the assembled state, the cavity edge region of the filter chamber engages in the pivot region of, for example, a pivotable spring bracket. This can be achieved in that the spring bow is pushed back by the retaining plate of the filter bag. This prevents the spring bow from deflecting through the rotation region with the restoring force. Likewise, when the retaining plate holds the locking device in the pushed-back position by overcoming the restoring force of the spring element, the locking device which has been moved into the pushed-back position cannot be moved in the direction of the cavity edge region either.

It is particularly preferably proposed that the filter bag is held on the chamber cover by means of a holding plate. According to this embodiment, the filter bag is not fastened to a partial region of the filter chamber but rather to the chamber cover. In this way, the user does not have to reach into the filter chamber with his hands in order to insert the filter bag into the filter chamber, but rather can easily fasten the filter bag to the chamber cover in the state in which the chamber cover is detached from the filter chamber and then attach the chamber cover with the filter bag arranged thereon to the filter chamber, so that the filter bag fastened to the chamber cover is simultaneously brought into the filter chamber. This embodiment also prevents the suction from flowing into the filter chamber when the filter bag is replaced. More precisely, the user can transport the chamber cover together with the filter bag to the suction station or to a waste container and there hygienically remove the waste. This can be achieved particularly simply due to the small weight and portable size of the chamber cover.

In connection with this, it is also proposed that the chamber cover has a guide slot for receiving the holding plate. The guide runner is adapted to indicate to a user a desired position of the holding plate on the cavity cover. The guide link also ensures that the locking device is also caused to move relative to the cover when the filter bag is fixed to the cover. The filter bag is held in the filter chamber by a locking device, which is moved by the locking device, and which is then closed by the filter chamber cover. The holding plate and the guide runner preferably have a shape encoder relative to one another, so that they can be fixed 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. According to this embodiment, the user guides the holding plate by means of the guide webs of the cavity cover, wherein the displacement path predefined by the guide webs simultaneously intersects the rotational region and/or the displacement region of the locking device and thus moves the locking device back. The guided movement of the locking device prevents the user from tilting, for example, the retaining plate relative to the chamber cover and thus, in the worst case, from being able to perform a locking function, which prevents the filter chamber from being completely closed despite an insufficiently well installed filter bag and putting the suction cleaning device into operation.

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 an open state,

figure 3 shows the chamber cover with the filter bag thereon,

figure 4 shows an enlarged partial region of the cover with the locking device,

figure 5 shows the partial area of the cover and the retaining plate of the filter bag in the not yet assembled state,

figure 6 shows a principle view of the co-action between the locking means and the holding plate according to the situation shown in figure 5,

figure 7 shows a schematic diagram of the continued interaction,

figure 8 shows a further proceeding diagram of the interaction,

fig. 9 shows a schematic representation of the moved-back end position of the locking device.

Detailed Description

Fig. 1 shows a suction cleaning device 1 according to the invention, the suction cleaning device 1 being designed here, for example, as a vacuum cleaner which is operated by an electric accumulator. The suction cleaning device 1 is provided with a housing 20, the housing 20 having a shaped lever 21 (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 21, the housing 20 has a suction connection end 10, to which an accessory, here for example a bottom suction nozzle 32, 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. A switch 22 for switching the motor-fan unit on and off and a selector switch 23 are provided on the lever 21, by means of which selector switch 23 different power levels of the motor-fan unit can be selected. Furthermore, a display device 24 is also provided on the housing 20 of the suction cleaning device 1, which display device 24 displays the state of charge of the battery of the suction cleaning device 1.

Furthermore, the suction cleaning device 1 is provided with a filter chamber 2, which filter chamber 2 can be closed with a chamber cover 5. The chamber cover 5 is part of the outer housing 20 and fits into an opening of the housing 20 provided in the suction cleaning device 1, which opening is at the same time the chamber edge region 9 of the filter chamber 2. Furthermore, it can be seen from fig. 2 that the chamber cover 5 closing the filter chamber 2 carries, for example, a filter bag 4, so that the chamber cover 5 together with the filter bag 4 can be separated from the remaining partial region of the housing 20 of the suction cleaning device 1. The user can particularly conveniently take the filter bag 4, for example to replace the filter bag 4, without having to reach into the filter chamber 2 with his hand. Instead, the user fixes the filter bag 4 on the chamber cover 5 by means of the holding plate 3 of the filter bag 4 and then fixes the chamber cover 5 together with the filter bag 4 on the suction cleaning device 1, so that the filter bag 4 fixed on the chamber cover 5 projects into the filter chamber 2. In the installed state of the filter bag 4 and when the filter chamber 2 is closed by means of the chamber cover 5, the filter bag 4 is then in a flow path inside the suction cleaning device 1, which is guided from the suction connection 10 through the filter chamber 2 to the motor-fan unit. Furthermore, on this flow path, between the filter bag 4 and the motor-fan unit, there is also a motor protection filter 26, which motor protection filter 26 protects the motor-fan unit against the situation in which the user operates the suction cleaning device 1 when the filter bag 4 is not installed.

The suction operation of the suction cleaning device 1 is effected in the usual manner in such a way that the user switches on the suction cleaning device 1 via the switch 22, thereby operating the motor-fan unit. A negative pressure is thereby generated at the suction connection 10, which draws suction material from the surface to be cleaned into the suction cleaning device 1. Through the suction connection 10 or the bottom suction nozzle 32, the air loaded with the suction is passed through the pocket 27 provided in the holding plate 3 into the filter bag 4. The bag mouth 27 is provided with a closure 28 in the form of a flexible flap which is opened by the underpressure and allows the aspirant to flow into the filter bag 4. The suction present in the suction flow is blocked by the filter material of the filter bag 4, so that only cleaned air can flow to the motor-fan unit, while the suction remains inside the filter bag 4.

On the chamber cover 5, a cover locking device 29 is provided, which cover locking device 29 serves to lock the chamber cover 5 to the chamber edge region 9 of the filter chamber 2. An actuating element 30 (see fig. 1) is operatively connected to the cover locking device 29, by means of which actuating element 30 a user can bring about and release the locking between the chamber cover 5 and the chamber edge region 9. The lid locking device 29 has a locking element 25, which locking element 25 engages the chamber edge region 9 when the actuating element 30 is actuated and thus prevents the release of the chamber lid 5 from the filter chamber 2.

Fig. 3 shows an enlarged view of the chamber cover 5, the chamber cover 5 having the filter bag 4 arranged on its inside, the filter bag 4 being fixed to the chamber cover 5 by means of its retaining plate 3. The chamber cover 5 has a guide slot 15 with two guide webs 16 for receiving the holding plate 3, which guide webs 16 can be inserted into adapted guide channels 17 of the holding plate 3. The guide slot 15 is arranged and arranged on the housing cover 5 in such a way that the pocket mouth 27 comes into contact with the end region of the suction connection 10 pointing in the direction of the filter chamber 2 in the state of the filter bag 4 which is fixed to the housing cover 5 as intended (and when the filter chamber 2 is in the closed state).

In order to prevent the user from operating the suction cleaning device 1 without filter bags 4 inserted into the filter chamber 2, which could damage the motor-fan unit in particular, the chamber cover 5 has a locking device 6. The locking device 6 is shown in detail in fig. 4, wherein fig. 4 to 9 show the interaction of the holding plate 3 with the locking device 6 during the process of fixing the holding plate 3 on the chamber cover 5.

The locking device 6 is associated with the cover edge region 8 of the chamber cover 5, wherein the locking device 6 does not project beyond the edge 31 of the chamber cover 5, but is arranged at a distance from the edge 31, so that the user cannot easily interfere with the safety mechanism connected thereto. The locking device 6 is formed here, for example, by a spring element 7 designed as a spring bow. The spring element 7 is rotatably mounted on the chamber cover 5 by means of a bearing 18, for example in the form of a screw, wherein, during operation, the spring element can be moved, i.e. rotated, both relative to the chamber cover 5 and relative to the bearing 18. The spring element 7 has a U-shape as the main basic shape and has two arms 11 parallel to each other and a middle region 12 connecting the two arms 11. However, the arms 11 and the intermediate region 12 are not formed in the same plane. Instead, the central region 12 is likewise U-shaped, so that the central region 12 is distant from the arm 11 in the side views according to fig. 6 to 9, in fig. 6 to 9 the arm 11 and the central region 12 being line segments which are arranged transversely with respect to one another. Connected to the arms 11 are in each case one end region 13 facing away from the central region 12, the end regions 13 being supported below the supports 18 of the chamber cover 5. In this case, the first end region 13 acts as a bent end region on a mating bearing 19 formed on the chamber cover 5, which mating bearing 19 forms an end stop for the rotation of the locking device 6. The other end region 13 has a hook-shaped end which is rotatably mounted below the associated support 18 and thus generates a pretensioning force in the deflected state of the locking device 6, which pretensioning force attempts to bring the locking device 6 into a relaxed state, which corresponds to a preferred position of the locking device 6.

In fig. 4, the locking device 6 is in the preferred position. By arranging the retaining plate 3 on the guide slot 15 of the chamber cover 5, as is shown in detail in fig. 5 to 9, the locking device 6 can be pivoted through the pivot region 14, so that the filter chamber 2 can be closed by means of the chamber cover 5.

When the holding plate 3 is fixed to the chamber cover 5 as intended, the locking device 6 is further moved back in the direction of the chamber cover 5, i.e. is deflected in the direction of the chamber cover 5, so that the cover edge region 8 of the chamber cover 5 can engage the chamber edge region 9 of the filter chamber 2 in order to close the filter chamber 2. In the position of the locking device 6 shown in fig. 4, the locking device 6 extends the effective length of the chamber cover 5, so that the chamber cover 5 can no longer be fitted into the chamber opening of the filter chamber 2, since the locking device 6 would collide with the chamber edge region 9. Although not shown in detail in the figures, the locking device 6 may alternatively have a separate spring element 7 for actuating the locking element. In this case, the locking device 6 is no longer formed by the spring element 7 itself as shown here, but the locking device 6 and the spring element 7 are separate elements. Furthermore, alternative embodiments can be provided in which the locking device 6 is not deflectable but is linearly displaceable relative to the chamber cover 5. In this case, the locking device 6 can alternatively also be formed by the spring element 7 or have a separate spring element 7. It is important that, in all embodiments, the chamber edge region 9 engages in the pivot region 14 or displacement region of the locking device 6 in relation to the closed state of the filter 2 by means of the chamber cover 5.

The manner of action of the locking device 6 is explained in detail below with reference to fig. 5 to 9, which show the time course of the fastening of the holding plate 3 on the chamber cover 5.

In the case shown in fig. 5 and 6, the holding plate 3 and the filter bag 4 are not yet fixed on the cavity cover 5. The filter bag 4 is arranged on the chamber cover 5 in such a way that the user grasps the holding plate 3 and positions it relative to the guide chute 15 of the chamber cover 5. For this purpose, the user guides the guide channel 17 formed on the holding plate 3 by means of the guide webs 16 of the guide runner 15 until an end stop is reached. Furthermore, the guide channel 17 is shaped in such a way that the guide channel 17 can also accommodate a bearing 18 designed as a bolt and a partial region of the locking device 6. If the user then continues to press the retaining plate 3 in the direction of the chamber cover 5 along the movement path predefined by the guide runner 15, the retaining plate 3 finally touches the arm 11 of the spring element 7 of the locking device 6 (see fig. 7), so that the spring element 7 is pressed downward in the direction of the chamber cover 5 (see fig. 8), i.e. continues through the rotation region 14. The rotation process continues until the end position shown in fig. 9 is finally reached, in which the intermediate region 12 of the spring element 7 is already guided close to the chamber cover 5 to such an extent that the intermediate region 12 no longer collides with the chamber edge region 9 of the filter chamber 2 when the filter chamber 2 is closed by means of the chamber cover 5. In the event that the user forgets to fasten the filter bag 4 to the cover 5 or fails to properly orient the filter bag 4 relative to the guide chute 15, as shown in fig. 4 and 5, the locking device 6 projects to the greatest extent in the direction of the edge 31 of the cover edge region 8 and, in the event of an attempt to fit the cover 5 into the opening plane of the filter chamber 2, strikes the chamber edge region 9 and cannot close the filter chamber 2.

List of reference numerals

1 suction cleaning device

2 Filter chamber

3 holding plate

4 filter bag

5 chamber cover

6 locking device

7 spring element

8 cap edge area

9 chamber edge region

10 suction connection end

11 arm

12 middle area

13 end region

14 area of rotation

15 guide chute

16 guide tab

17 guide channel

18 support member

19 mating support

20 casing

21 handle

22 switch

23 selection switch

24 display device

25 locking element

26 motor protection filter

27 bag mouth

28 closure

29 cover locking device

30 operating element

31 edge

32 bottom nozzle

Claims

1. A suction cleaning device (1) having a filter chamber (2) and a filter bag (4) having a retaining plate (3), wherein the filter chamber (2) has a chamber cover (5), wherein the chamber cover (5) has a locking device (6) having a spring element (7) on the inner side directed toward the filter chamber (2), wherein the locking device (6) is adapted to the retaining plate (3) of the filter bag (4) and is designed such that the chamber cover (5) can be moved into a closed state of the filter chamber (2) only when the retaining plate (3) of the filter bag (4) moves the locking device (6) into a release position against the restoring force of the spring element (7), characterized in that the locking device (6) is arranged on a cover edge region (8) of the chamber cover (5), wherein the cover edge region (8) can engage a chamber edge region (9) of the filter chamber (2) in order to close the filter chamber (2), wherein the locking device (6) is adapted to the chamber edge region (9) and is designed and arranged such that the locking device (6) strikes the chamber edge region (9) in a preferred position corresponding to the relaxed state of the spring element (7) and prevents the cover edge region (8) from engaging with the chamber edge region (9).

2. A suction cleaning device (1) according to claim 1, characterized in that the locking means (6) is a spring bow arranged on the chamber cover (5).

3. A suction cleaning device (1) according to claim 2, characterized in that the spring bow is constructed substantially in a U-shape and has two parallel arms (11) and an intermediate region (12) connecting the two arms (11).

4. A suction cleaning device (1) according to claim 3, characterized in that the U-shaped arms (11) each have an outwardly directed end region (13) facing away from the central region (12), wherein the two end regions (13) form the axis of rotation for the spring bow.

5. The suction cleaning device (1) according to claim 1, characterized in that the locking device (6) is provided with a separate spring element (7), wherein the locking device (6) can be moved by means of the holding plate (3) against the restoring force of the spring element (7).

6. A suction cleaning device (1) according to one of the preceding claims, characterized in that the locking means (6) can be deflected and/or linearly moved relative to the chamber cover (5).

7. A suction cleaning device (1) according to one of the preceding claims, characterized in that the chamber edge region (9) engages in the rotational region (14) and/or in the displacement region of the locking device (6) in the closed state of the filter chamber (2) by means of the chamber cover (5).

8. A suction cleaning device (1) according to one of the preceding claims, characterized in that the filter bag (4) is held on the chamber cover (5) by means of a holding plate (3).

9. The suction cleaning device (1) according to claim 8, characterized in that the chamber cover (5) has a guide chute (15) for accommodating the holding plate (3).

10. Suction cleaning device (1) according to claim 8 or 9, characterized in that the chamber cover (5) has two guide tabs (16), which guide tabs (16) can be inserted into adapted guide channels (17) of the holding plate (3).