WO2018091068A1

WO2018091068A1 - Suction appliance

Info

Publication number: WO2018091068A1
Application number: PCT/EP2016/077676
Authority: WO
Inventors: Markus ÖSTERLE; Maic Hensel; Heiner Kühn
Original assignee: Alfred Kärcher Gmbh & Co. Kg
Priority date: 2016-11-15
Filing date: 2016-11-15
Publication date: 2018-05-24
Also published as: EP3541258A1; EP3541258B1; CN109922701B; CN109922701A

Abstract

A suction appliance is made available which is suitable for suction of liquids, comprising a housing (44), a fan device (46) which is arranged horizontally in the housing (44), wherein the fan device (46) comprises a fan motor (48) and at least one impeller (50), and a first region of the fan device (46) is arranged in a motor region (56) of the housing (44), and a second region of the fan device (46) is arranged in a suction region (58) of the housing (44), a holder (72) for the fan device (46), by means of which holder (72) the fan device (46) is held in the housing (44), and a sealing device (70) which separates the motor region (56) from the suction region (58) in a fluid-tight manner, wherein the sealing device (70) bears with a first sealing region (104) in a fluid-tight manner on the fan device (46) and bears with a second sealing region (124) in a fluid-tight manner on the holder (72).

Description

sucker

The invention relates to a sucker, which is suitable for sucking liquids.

From DE 617 873 an electric pot vacuum cleaner with a vertical shaft is known, whose fan consists of a plurality of impellers and arranged between these vanes.

From US 2006/0272120 AI another sucker is known.

The invention has for its object to provide a sucker of the type mentioned, which is compact and which has a high reliability.

This object is achieved according to the invention with the suction device mentioned above in that a housing is provided, a blower device is provided which is arranged horizontally in the housing, the blower device comprising a blower motor and at least one impeller and a first region of the blower device in FIG a motor region of the housing is arranged and a second region of the blower device is arranged in a suction region of the housing, a holder for the blower device is provided, through which the blower device is held in the housing, and a sealing means is provided which the engine region fluid-tight from the Suction area separates, wherein the sealing means with a first sealing region in fluid-tight manner against the blower device and with a second sealing region in a fluid-tight manner against the holder.

Due to the horizontal arrangement of the fan device in the housing results in an optimal use of space. The corresponding vacuum cleaner can be made compact. He can be trained with a minimized number of components, so that in turn it can be made relatively easily with ease of assembly.

With a fan device arranged horizontally, there are increased requirements for a fluid-effective seal between the engine area and the intake area. In principle, liquid can be sucked into the intake area when aspirating liquids. Liquid must not get into the engine area. The motor area is an "electrical" area of the nipple. For example, electrical connections for the fan motor and further electrical or electronic components are arranged in the motor region.

In the solution according to the invention, a holder is provided on which the sealing device is fixed. The sealing device provides a fluid-tight fluid-tight seal to the holder. In turn, the blower device sits at the sealing device. The sealing device provides a fluid-effective seal towards the blower device.

The sealing device with its first sealing region and its second sealing region thus effectively keeps the blower device in a fluid-tight manner on the holder. It can thereby achieve a high sealing effect while the sucker can be compact. The number of components for mounting the blower device in the housing can be kept low. For example, by means of a press fit of the sealing device on the holder and a press fit of the blower device on the sealing device (and possibly further supporting elements in the housing), the blower device can be fixed to the vacuum cleaner in a simple manner.

Furthermore, can be realized by the sealing device in a simple manner, a floating mounting of the fan device.

The first sealing region is formed, for example, as a radial seal. The second sealing region is formed, for example, as a radial-axial seal. It is advantageous if the holder is or comprises a wall in the housing and in particular is integrally connected to the housing. This makes it possible to achieve a compact design of the nipple. The number of components can be kept low.

In particular, the at least one impeller is positioned in the intake area. It is, so to speak, positioned beyond the sealing device with the motor region positioned on either side of the sealing device.

It is advantageous if the holder has a recess in which the sealing device is positioned. As a result, the blower device can be easily held in the housing. It can achieve a high sealing effect.

It is advantageous if the second sealing region bears against a boundary wall of the recess of the holder. This makes it possible to achieve a high sealing effect. It is advantageous if the recess is open towards a transverse side and / or is U-shaped or V-shaped. As a result, the blower device and the sealing device can be fixed to the holder in a simple manner. Furthermore, it is thereby possible to easily generate a bias in inserted sealing device, which increases for an increased

Sealing effect ensures.

It is particularly advantageous if the recess tapers along an elevation axis and, in particular, has a width transverse to the elevation axis, which decreases along the elevation axis in one direction and in particular decreases away from the transverse side. It can thus be on the sealing device, when it is inserted into the recess, generate a bias to achieve a high fluid tightness. This results in a simple manufacturability, when the recess of the holder is formed so that the sealing device can be inserted in an insertion direction parallel to a height axis of the recess of the holder in the recess. In particular, this makes it possible to minimize the number of components necessary for fixing the fan device in the housing.

It is particularly advantageous if the sealing device is elastic and in particular sits in a press fit in the recess of the holder. It can thereby generate a biasing force, which increases the sealing effect of the sealing device on the second sealing region.

In an advantageous embodiment, the sealing device is integrally formed. This results in a high level of sealing security with ease of manufacture, both with respect to the sealing device and on the sucker.

It is favorable if the sealing device has a recess in which the blower device is seated, wherein the first sealing region is formed on a boundary wall of the recess of the sealing device. It can thus be realized in a simple manner a radial seal, which causes a seal around the fan device around. At the same time, this allows the blower device to be positioned and fixed in the housing. Furthermore, a floating mounting of the fan device in the housing can be realized in a simple manner.

It is advantageous if the recess of the sealing device is surrounded by a circumferential closed boundary wall. This makes it easy to achieve a radial seal with high sealing effect and high failure protection. It is particularly advantageous if the first sealing region and / or the second sealing region has a plurality of spaced and in particular parallel spaced sealing ribs, which are provided for engagement with the counter element. Each sealing rib effectively forms its own seal, wherein a plurality of seals are connected in series through the plurality of sealing ribs. If a seal (corresponding to a sealing rib) should fail (for example, due to leakage), then the other sealing ribs still have their sealing function. This results in respect to the seal a high degree of redundancy and thus a correspondingly high failure protection.

It is advantageous if the sealing ribs have a course of orientation, which is oriented transversely and in particular perpendicular to a rotational axis of the fan motor. In particular, the course direction is a circumferential direction with respect to an axial direction of the axis of rotation.

It is advantageous if the sealing ribs of the first sealing region are designed to be closed in a closed manner. It is realized by a series connection of a plurality of radial seals.

It is particularly advantageous if the sealing device has a gripping area for a counter element of the fan device on the first sealing area and / or has a gripping area for a counter element of the holder on the second sealing area. This achieves a high sealing function.

It is advantageous if the sealing device is designed to be elastic and in particular the blower device is seated in a press fit on the holder. This results in a high sealing effect due to a corresponding bias.

It is structurally favorable if the sealing device has a wall element, which has a boundary wall for at least one blow-out channel for process air. As a result, the blow-out channel can be formed in a simple manner with the sealing device that is present anyway, and can also be delimited in a fluid-tight manner so that blow-out air can be blown out in a defined manner at one or more outlets.

In particular, the wall element protrudes beyond a sealing body of the sealing device, on which a recess for the blower device is formed. This makes it easy to form a wall element for the blow-out.

In one embodiment, the sucker has a fan head on which the fan device is arranged.

In particular, a receptacle is then provided on which the fanhead is removably seated. The receptacle has a receiving space into which suction material can be injected directly or into a filter bag. For wet suction, a high absorption volume can be provided by the receptacle. In one embodiment, the sucker has an underside, which is formed in particular on a receptacle, and an upper side, which is in particular formed on a fan head, wherein a height axis between the bottom and the top and wherein a rotation axis of the fan motor transverse to the elevation axis lies. It can thereby achieve a horizontal arrangement of the blower device.

It is favorable if an erection device is provided, by means of which the sucker can be set up for proper operation on a base and which has an envelope plane, wherein an axis of rotation of the fan motor is oriented parallel or at an acute angle less than or equal to 30 ° to the envelope plane. In particular, the envelope plane corresponds to the underlay or to an envelope plane of the underlay. With this position of the axis of rotation relative to the envelope plane, a horizontal arrangement of the blower device in the housing is achieved.

For the same reason, it is favorable if an erection device, by means of which the sucker can be set up for proper operation on a base, and which comprises a wheel device with a wheel axle, is provided, wherein an axis of rotation of the fan motor is oriented at least approximately parallel to the wheel axle , This also makes it possible to achieve a compact and space-saving arrangement for the horizontal fan device in the housing.

It is favorable if the engine area comprises a flow guidance for cooling air. As a result, cooling of the fan motor can be achieved in a simple manner.

It is also advantageous if at least one blow-out duct for process air is connected to the intake area. This allows process air to be easily blown out. It is also advantageous if the fan device is supported at a distance from the holder on the housing. It is then held in addition to the holder via one or more support members on the housing. Such support elements can be realized in a simple manner. For example, a contact surface is provided to which the blower device can be applied. In principle, the blower device can then be fixed in the housing by means of such a support element (or a plurality of support elements) and the holder without further fastening means, and in particular can be stored in a floating manner. It is particularly advantageous if the sealing device sits under pretension on the holder and / or the blower device is seated under prestress against the sealing device. It can be a high Sealing effect both with respect to the holder and with respect to the blower device reach.

It is advantageous if the blower device is mounted floating in the housing. As a result, a certain vibration decoupling between the blower device and the housing can be achieved, in particular to achieve a reduction in noise with respect to the vacuum cleaner. By the sealing device, the floating storage can be realized in a simple manner.

The sucker is designed, for example, as a wet-dry vacuum cleaner, through which both liquids and dry material can be sucked.

It is basically possible that the sucker is integrated in a machine such as a roughing machine or sweeper. In one embodiment, the nipple is designed as a stand-alone device.

The following description of preferred embodiments is used in conjunction with the drawings for further explanation of the invention. FIG. 1 shows a side view of an exemplary embodiment of a vacuum cleaner according to the invention; FIG. Figure 2 is a front view of the vacuum cleaner according to Figure 1 in the direction A;

Figure 3 is a sectional view taken along line 3-3 of Figure 2; Figure 4 is a sectional view taken along line 4-4 of Figure 2; Figure 5 is a partial sectional view taken along line 5-5 of Figure 2, wherein also the sectional planes of the sectional views are indicated in Figures 3 and 4; Figure 6 is a sectional view taken along the line 6-6 of Figure 1, wherein the sectional planes of Figures 3 and 4 are indicated; a perspective view of an embodiment of a sealing device for fluid-effective sealing between an engine compartment in a suction chamber for the sucker of Figure 1; a view of the sealing device according to Figure 7 in the direction B detached from a holder, in which the sealing means is used on the sucker according to Figure 1; a further perspective view of the sealing device according to Figure 7; and FIG. 10 shows a sectional view along line 10-10 of the sealing device according to FIG. 8.

An exemplary embodiment of a nipple according to the invention is a wet-dry nipple (NT nipple), which is designed as a stand-alone device and shown in Figures 1 to 6 and designated 10.

In principle, it is possible that the solution according to the invention is also realized on a vacuum cleaner, which is integrated in a cleaning machine such as a sweeper or roughing machine.

The nipple 10 comprises a receptacle 12 to which a blower head 14 is detachably mounted. For releasable fixing of the fan head 14 to the receptacle 12, a locking device 16 is provided. The receptacle 12 is barrel-shaped in one embodiment with a container bottom 18, on which a container wall 20 sits. The container wall 20 and the container bottom 18 define a receiving space 22 for receiving suction material.

In one embodiment, the nipple 10 has a bottom 24 and an underside 26 opposite the underside. Starting from the bottom 24 runs to the top 26 a height axis 28th

When the teat 10 is placed on a support 30 for proper operation, the elevation axis 28 is transverse to that of the support 30, and more particularly perpendicular to the support 30. The underside 24 is on the support 30 for proper operation when the teat 10 is installed facing this pad 30.

In one embodiment, a (non-steerable) wheel device 32 is arranged on the receptacle 12 in the region of the underside 24, which comprises in particular a left rear wheel 34a and a right rear wheel 34b. The left rear wheel 34a and the right rear wheel 34b have a common wheel axle 36 about which they are rotatable together.

The wheel axle 36 lies transversely and in particular perpendicular to the height axis 28.

On the receiving container 12, a steering roller device 38 is further arranged in the region of the bottom 24 with one or more castors. (In the embodiment shown, the caster device 38 comprises a castor pair.) The wheel device 32 and the castor wheel device 38 form an erection device 40, via which the vacuum cleaner 10 can be set up on the support 30 for proper operation. The positioning device 40 has an envelope plane 42, which to a certain extent forms a support plane for the placement of the nipple 10 on the base 30. If the pad 30 is flat, then the envelope plane 42 coincides with that padding plane. The height axis 28 is at least approximately to the envelope plane 42; it may be exactly vertical or lie at a small acute angle, in particular less than 30 ° to the envelope plane 42.

The receptacle 12 with its receiving space 22 is designed so that it can be taken directly in it suction material or that in him, for example, a filter bag for receiving suction material can be positioned. (In a wet operation for sucking liquid, liquid is usually sucked directly into the receiving space 22 of the receptacle 12.)

The fan head 14 is mounted on the front side of the receptacle 12. In one embodiment, the fan head 14 has an immersion area with which it is immersed in the receiving space 22 of the receptacle 12. Through this immersion area, inter alia, a centering of the fan head 14 for fixing to the receptacle 12 is feasible.

The teat 10 has a housing 44 for the fan head 14. (The receptacle 12 also has a housing with the container bottom 18 and the container wall 20. This housing forms with the housing 44 of the fan head 14 a "total" housing of the teat 10.) In the housing 44 of the fan head 14, a fan 46 is arranged (Figures 3 to 6). The blower device 46 includes a blower motor 48 and (at least) an impeller 50. The blower motor 48 is in particular an electric motor.

The fan motor 48 has an axis of rotation 52. In particular, it has a shaft 54 on which the impeller 50 rotatably seated and which is rotatable about the axis of rotation 52. The impeller 50 is rotatable about the axis of rotation 52 in the housing 44.

The housing 44 of the fan head 14 has a motor area 56 and a suction area 58. In the motor area 56, a first area of the blower 46 is positioned and in the suction area 58 a second area. The blower 46 generates in operation (during rotation of the

Impeller 50 about the axis of rotation 52), a negative pressure flow (suction flow), which via the suction portion 58 to the receiving space 22 of the

Shelf 12 acts. To the receiving space 22 fluidly a suction hose is connected.

For this purpose, in one embodiment (not shown in the drawings) on the receiving container 12, a suction nozzle is arranged, to which a suction hose can be connected. In the vacuum cleaner 10, a connection 60 for a suction hose is positioned on the fan head 14 on the housing 44. This connection 60 is arranged in particular on the upper side 26. A tube 62 is connected to the port 60 and passes through the fan head 14 into the receiving space 22 (Figure 4). It protrudes with a lower end 64 into the receiving space 22.

The tube 62 is oriented at least approximately parallel to the height axis 28. The suction area 58 in the fan head 14 is in fluid-effective communication with the receiving space 22. By generating a suction flow through the fan 46, the receiving space 22 can be subjected to negative pressure accordingly. A suction effect can then be achieved via the pipe 62 and a suction hose connected to the connection 16 (on which optionally one or more suction pipes and optionally a suction nozzle are arranged). Suction is then sucked through the port 60 and the pipe 62 into the receiving space 22, driven by the suction flow, which was generated by the blower 46 and acts on the intake area 58 to the receiving space 22.

The blower device 46 is arranged lying in the fan head 14. The axis of rotation 52 lies transversely and in particular perpendicular to the height axis 28.

The axis of rotation 52 is at least approximately parallel to the envelope plane 42 of the positioning device 40 (it is parallel or at a small acute angle, which is at most 20 °.)

In the embodiment shown, the axis of rotation 52 of the fan 46 is parallel to the wheel axle 36. This results in a space-saving compact design. It is also possible in principle that the axis of rotation 52 is oriented transversely and in particular perpendicular to the wheel axis 36.

The motor region 56 of the fan head 14 is a dry area. In particular, electrical connection elements of the vacuum cleaner 10 are located therein. The electrical connection elements 66 comprise in particular electrical connection elements for the electrical power supply (and control) of the blower motor 48. Furthermore, switching elements for the vacuum cleaner 10 can be arranged in the motor region 56. In one embodiment, a socket 68 is arranged on the motor region 56, by means of which an additional device with electrical energy can be supplied, wherein the electrical energy supply can be coupled in particular to a suction operation.

In principle, it is possible that in a suction operation for liquid, liquid can pass through the suction region 58 as far as the blower device 46. The motor area 56 is a dry area and may not have any

Get liquid. For fluid-tight delimitation between the motor region 56 and the intake region 58, a sealing device 70 (compare also FIGS. 7 to 10) is provided.

The sealing device 70 fluidly separates the first region and the second region of the blower device 46.

A holder 72 for the blower device 46 is arranged in the blower head 14 in the housing 44. This holder 72 is formed as a wall base plate which is disposed within the housing 44. This wall 74 is in particular integrally connected to the housing 44.

The wall 74 of the holder 72 is oriented at least approximately perpendicular to a plane 76 (FIG. 6) which is perpendicular to the height axis 28 or at least approximately parallel to the envelope plane 42 of the positioning device 40.

The wall 74 of the holder 72 divides the fan head 14 into a first half space beyond the holder 72, in which the motor portion 56 is located, and into a second half space on this side of the holder 72, in which the suction portion 58 is located.

The suction region 58 is formed, in particular, via a suction chamber 78 which, for example, is in fluid-effective connection with the receiving space 22 via a pipe 80. The tube 80 leads to a filter device 82 (FIGS. 3, 4); a suction flow, which is generated by the blower 46, acts on the receiving space 22 via the filter device 82; the filter device 82 in particular filters out particles from the suction flow. The filter device 82 has a clean side 84 and a dirty side 86. The clean side 84 faces the tube 80. The dirty side 86 faces the receiving space 22. The suction area 58 is a clean area; it is upstream of the filter device 82 relative to the suction flow. The holder 72 has on the wall 74 a recess 88 (indicated in Figures 4 and 8). The recess 88 is a continuous opening between the suction area 58 and the motor area 56. In this recess 88 sits the sealing device 70 (and the fan 46); through the sealing device 70, the recess 88 is closed fluid-tight to the holder 72 in order to obtain a liquid-tight separation between the suction region 58 and the motor region 56.

The recess 88 has a height axis 90, which is parallel to the height axis 28.

In one embodiment, the recess 88 is formed mirror-symmetrically to its height axis 90.

The recess 88 has a transverse side 92, which lies transversely to the vertical axis 90 and which faces the upper side 26. At this transverse side 92, the recess 88 is open. This makes it possible to insert the sealing device 70 (with the blower device 46) into the recess 88 from above in an insertion direction 94 (FIG. 4), with the insertion direction directed from the upper side 26 to the lower side 24 (FIG. 8).

The recess 88 tapers with respect to the insertion direction 94. A width b transverse to the height axis 90 (FIG. 8) decreases away from the transverse side 92 along the height axis 90. The recess 88 has a U-shaped or V-shaped configuration with respect to its boundary contour. As a result of the recess 88 tapering downwards (in the direction from the upper side 26 to the lower side 24), when the sealing device 70 is inserted, a corresponding pressure is exerted on the sealing device 80, in particular with respect to contact with a boundary wall 96 of the recess 88. It can thereby achieve a biasing force when the sealing device 70 is seated on the holder 72. This improves the tightness.

The boundary wall 96 is part of the wall 74 (of the holder 72) and it defines the recess 88. The particular U-shape or V-shape of the recess 88 is defined by the boundary wall 96.

The boundary wall 96 has a depth direction which is at least approximately parallel to the axis of rotation 52 of the blower motor 48. The sealing device 70 (FIGS. 7 to 10) comprises a sealing body 98. The sealing body 98 has a recess 100, which is formed as a continuous opening. This recess 100 has in particular a circular shape. The sealing body 98 has towards the recess 100 toward a boundary wall 102 which surrounds the recess 100 closed. The boundary wall 102 forms a first sealing region 104, which bears against a housing 106 of the blower device 46. At the first sealing region 104, the boundary wall 102 of the sealing body 98 is formed such that a first encompassing region 108 is present. The boundary wall 102 of the blower device 46 has a counter element 110 for the first encompassing region 108. This counter-element 110 is encompassed on at least one side by the first encompassing region 108, that is to say the counter-element 110 dips into a recess formed on the first encompassing region 108.

In the exemplary embodiment shown, the first encompassing region 108 has an edge 112 (FIGS. 5, 9), which surrounds the counter element 110 on one side.

It is also possible that spaced flanks are provided, between which the counter element 110 is positioned.

The counter element 110 is designed in the manner of a circumferential ring. The first encompassing region 108 is formed circumferentially with the boundary wall 102; the flank 112 or, if a plurality of flanks are provided, corresponding to the plurality of flanks, are formed circumferentially.

The flank 112 is assigned to the motor region 56. Relative to the intake area 58, the engine area 56 is an overpressure area. As a result, the edge 112 is pressed during operation of the nipple 10 against the associated counter element 110.

At the first sealing region 104 spaced (sealing) ribs 114 are arranged transversely to the height axis 90 and in particular parallel to the axis of rotation 52. A rib 114 is formed circumferentially on the first seal portion 104.

A rib 114 in each case has a rib tip 116, which is provided for bearing against the counter element 110. The first encompassing region 108 surrounds the counter element and the ribs 114 abut against a surface 118 arranged transversely with respect to the encasement (compare, for example, FIG. 6) of the counter element 110. The ribs 114 each form their own seal. By the plurality of parallel spaced ribs, so to speak, a plurality of seals are connected in series. If there is a leak on a rib 114, the other ribs still provide a seal.

By providing a plurality of spaced ribs 114 on the first sealing region 104, the failure protection for the sealing device 70 is increased.

The sealing body 98 has an outer contour 120, which is adapted to the recess 88. On a corresponding outer side 122 of the sealing body 98, a second sealing region 124 is formed, which serves for sealing between the sealing body 98 and the holder 72 (with the wall 74) on the recess 88 and thus on the boundary wall 96 of the recess 88.

At the second sealing region 124, a second encompassing region 126 is formed (FIGS. 5, 7). The counter element for the second encompassing region 126 is formed on the boundary wall 96. It is denoted by 128 in the figures (compare FIGS. 5, 6).

In one embodiment, the second encompassing region 126 is formed by flanks 130a, 130b spaced along the axis of rotation 52. In the space between the flanks 130a, 130b (which are integrally connected to the second sealing portion 124), the counter-element 128 is immersed; the flanks 130a, 130b overlap the counter element 128 on the boundary wall 96.

On the sealing body 100, a ring element 132 is arranged, which extends from the sealing body in one direction, in particular parallel to the rotary body. 52 projects. This ring element 132 serves to reinforce and / or position the sealing device 70.

On the sealing body 98, a wall member 134 is further arranged (Figures 6 to 10).

The wall element projects in a direction transverse to the height axis 90; it protrudes beyond the seal body 98. The wall element 134 is in particular integrally connected to the sealing body 98.

The wall element 134 (FIG. 6) forms a boundary wall for a blow-out channel 136 (see also FIG. 5) for process air. This blow-out channel 136 is fluidly connected to the suction area 58 and opens at one or more outlets 138 in the outer space. The blow-out passage 136 is disposed on the blower head 14.

Process air is discharged into the exterior via the blow-out duct 136.

Via the wall element 134 on the sealing device 70, the number of components can be kept low. It can be achieved in a simple manner with the sealing means a fluid effective connection of the blow-out channel 136 to the suction area 58 in the manufacture of the teat 10.

In the figures 1 to 4, a process air flow is indicated by a single arrow. A cooling air flow, which will be explained in more detail below, is indicated by a double arrow.

The sealing device 70 is in particular formed in one piece. It is preferably made of a plastic material, and has a certain elasticity, so that it sits in a press fit under bias in the holder 72 and the blower 46 is in a press fit under pretension in the recess 88, wherein the second sealing region 124 and the first sealing area 104 for a fluid seal and in particular provide special liquid seal, so that no liquid from the intake 58 can get into the motor region 56.

The blower device 46 is held on the holder 72.

In one embodiment, additional support is provided over one or more support members 140 (Figure 6) spaced from the holder in the housing 44 of the fan head 14. For the blower motor 48, air cooling is provided. For this purpose, a cooling air guide 142 is formed on the fan head 14 and, in particular, the motor region 56. Cooling air flows past the fan motor 48 past the motor region 56 via the cooling air guide 152. This can be discharged via one or more outlets 144 to the environment.

The teat 10 works as follows:

For proper suction operation, the vacuum cleaner 10 is placed on a support 30 via the positioning device 40. The blower 46 generates a suction flow through which the suction effect is effected.

When sucking liquids, there is basically the possibility that liquid enters the suction region 58 to the blower device 46. The sealing device 70 ensures that this liquid can not get into the motor area 56. The motor region 56 is an "electrical" region in which electrical connection elements, electrical components, etc. of the vacuum cleaner 10 are located. The sealing device 70 has a high sealing function. With the first sealing region 104 and the second sealing region 124, it provides a seal to the blower device 46 and towards the holder 72. The blower device 46 is arranged lying with the rotation axis 52 at least approximately parallel to the envelope plane 42. This results in increased sealing requirements, which are fulfilled by the sealing device 70. The ribs 114 provide increased failure protection.

Due to the horizontal arrangement of the fan 46, the vacuum cleaner 10 can be made compact and the number of components can be minimized. Furthermore, the assembly can be carried out more easily.

For example, the fan means 46 may be held in the fan head 14 via the support member 140 and the seal means 70 on the holder 72 without further fasteners such as screws or the like.

The blower 46 can be biased in the fan head 14 with respect to both the first seal portion 104 and the second seal portion 124 so as to achieve a high sealing effect.

Furthermore, can be about the sealing device 70 and the one or more supporting elements 114, the fan 46 also floating in the

Store blower head 14.

LIST OF REFERENCE NUMBERS

sucker

receptacle

blower head

locking device

container bottom

container

accommodation space

bottom

top

height axis

document

wheel means

a left rear wheel

b Right rear wheel

wheel axle

Steering roller device

Aufstelleinrichtung

Einhüllendenebene

casing

blower

blower motor

Wheel

axis of rotation

wave

engine area

suction

connection

pipe

Lower end

Electrical connection element socket

seal means

holder

wall

level

suction

pipe

filtering device

clean side

dirty side

recess

height axis

transverse side

insertion

boundary wall

seal body

recess

boundary wall

First sealing area

casing

First encompassing area

counter-element

flank

rib

fin tip

area

outer contour

outside

Second sealing area

Second encompassing area

counter-element

a flank

b flank 132 ring element

134 wall element

136 exhaust duct

138 outlet

140 support element

142 Cooling air duct

144 outlet

Claims

claims

A sucker suitable for vacuuming liquids, comprising a housing (44), a fan means (46) lying in the housing (44), the fan means (46) having a fan motor (48) and at least one impeller (46). 50) and a first portion of the fan means (46) is disposed in a motor portion (56) of the housing (44) and a second portion of the fan means (46) is disposed in a suction portion (58) of the housing (44), a holder (72) for the blower device (46), by which the blower device (46) is held in the housing (44), and a sealing device (70), which fluid-tightly separates the motor region (56) from the suction region (58), wherein the sealing device (70) with a first sealing region (104) in fluid-tight manner against the blower device (46) and with a second sealing region (124) in a fluid-tight manner against the holder (72).

Sucker according to claim 1, characterized in that the holder (72) is or comprises a wall (74) in the housing (44) and in particular is integrally connected to the housing (44).

Sucker according to claim 1 or 2, characterized in that the at least one impeller (50) is positioned in the suction region (58).

Sucker according to one of the preceding claims, characterized in that the holder (72) has a recess (88) in which the sealing device (70) is positioned.

Sucker according to claim 4, characterized in that the second sealing region (124) bears against a boundary wall (96) of the recess (88) of the holder (72).

6. Sucker according to claim 4 or 5, characterized in that the recess (88) of the holder (72) to a transverse side (92) is open towards and / or U-shaped or V-shaped.

7. Sucker according to one of claims 4 to 6, characterized in that the recess (88) of the holder (72) along a height axis (90) tapers and in particular a width (b) transversely to the height axis (90), which along the height axis (90) decreases in one direction.

8. Sucker according to one of claims 4 to 7, characterized in that the recess (88) of the holder (72) is formed so that the sealing means (70) in an insertion direction (94) parallel to a vertical axis (90) of the recess (88) of the holder (72) in the recess (88) is insertable.

9. Sucker according to one of claims 4 to 8, characterized in that the sealing means (70) is elastic and in a press fit in the recess (88) of the holder (72) sits.

10. Sucker according to one of the preceding claims, characterized in that the sealing device (70) is integrally formed.

11. Suction cup according to one of the preceding claims, characterized in that the sealing device (70) has a recess (100), in which the blower device (46) sits, wherein the first sealing region (104) on a boundary wall (102) of the recess (102). 100) of the sealing device (70) is formed.

12. Vacuum cleaner according to claim 11, characterized in that the recess (100) of the sealing device (70) by a circumferential closed boundary wall (102) is surrounded.

13. Sucker according to one of the preceding claims, characterized in that the first sealing region (104) and / or the second sealing region (124) has a plurality of spaced and in particular parallel spaced sealing ribs (114) which for abutment against a counter element (128 ) are provided.

14. Vacuum cleaner according to claim 13, characterized in that the sealing ribs have a course of orientation, which is oriented transversely and in particular perpendicular to a rotation axis (52) of the fan motor (48).

15. A teat according to claim 13 or 14, characterized in that the sealing ribs (114) of the first sealing region (104) are formed closed circumferentially.

16. Suction cup according to one of the preceding claims, characterized in that the sealing device (70) on the first sealing region (104) has a Umgreifungsbereich (108) for a counter element (110) of the blower device (46) and / or on the second sealing region ( 124) has a Umgreifungsbereich (126) for a counter element (128) of the holder (72).

17. Sucker according to one of the preceding claims, characterized in that the sealing device (70) is designed to be elastic and in particular the blower device (46) in a press fit on the holder (72) sits.

18. Sucker according to one of the preceding claims, characterized in that the sealing device (70) has a wall element (134) which forms a boundary wall for at least one blow-out duct (136) for process air.

19. A teat according to claim 18, characterized in that the wall element (134) via a sealing body (98) of the sealing device (70), on which a recess (100) for the fan device (46) is formed protrudes.

20. Sucker according to one of the preceding claims, characterized

by a blower head (14) on which the blower device (46) is arranged.

21. A teat according to claim 20, characterized by a receptacle (12) on which the fan head (14) removably seated.

22. Sucker according to one of the preceding claims, characterized

by an underside (24), which is formed in particular on a receptacle (12), and an upper side (26), which is formed in particular on a fan head (14), wherein a height axis (28) between the underside (24) and Top (26) extends and wherein a rotation axis (52) of the fan motor (48) transverse to the height axis (28).

23. Sucker according to one of the preceding claims, characterized

by an erection device (40), by means of which the sucker can be set up on a base (30) for proper operation and which has an envelope plane (42), wherein an axis of rotation (52) of the blower motor (48) is smaller or smaller at an acute angle is oriented at 30 ° to the envelope plane (42).

24. Sucker according to one of the preceding claims, characterized

by an adjusting device (40), by means of which the sucker for proper operation on a base (30) can be set up, and which comprises a wheel device (32) with a wheel axle (36), wherein an axis of rotation (52) of the fan motor (48) at least is oriented approximately parallel to the wheel axle (36).

25. Sucker according to one of the preceding claims, characterized in that the motor region (56) comprises a flow guide (142) for cooling air.

26. Vacuum cleaner according to one of the preceding claims, characterized in that at least one blow-out duct (136) for process air is connected to the intake area (58).

A nipple according to any one of the preceding claims, characterized in that the fan means (46) is supported at a distance from the holder (72) on the housing (44).

A teat according to any one of the preceding claims, characterized in that the sealing means (70) is biased against the holder (72) and / or that the fan means (46) is biased against the sealing means (70).

29. Sucker according to one of the preceding claims, characterized in that the blower device (46) is floatingly mounted in the housing (44).

30. Sucker according to one of the preceding claims, characterized

by training as a wet-dry vacuum cleaner.

31. Sucker according to one of the preceding claims, characterized

through training as a stand-alone device.