Suction device with battery arrangement and filter cleaning arrangement

Abstract

A suction device is provided, comprising a device body (12), a blower device (72) for generating a suction flow, a filter device (82), a filter cleaning device (88) for the filter device (82), and a battery device (120) for providing electrical energy, wherein the device body (12) is assigned a geometric middle plane (116) which is oriented perpendicular to a standing plane (56) of the device body (12), wherein a center of mass (118) of the device body (12) is at least approximately located on the middle plane (116), wherein the filter cleaning device (88) is arranged on the device body (12) in such a way that a center of mass of the filter cleaning device (88) is at least approximately located on the middle plane (116), and wherein the battery device (120) is arranged on the device body (12) in such a way that a center of mass of the battery device (120) is at least approximately located on the middle plane (116).

Description

Technical Field

[0001] The present invention relates to a suction device, which includes a device body, a blower device for generating a suction flow, a filter device, and a filter cleaning device for the filter device, wherein the device body is provided with a geometrically intermediate plane, which is oriented perpendicular to the standing plane of the device body. Background Technology

[0002] DE 44 21 214 A1 discloses a vacuum cleaner having a housing consisting of a lower portion and an upper portion, the upper portion including one or more separate cover portions, wherein the lower portion is divided by a partition wall into a dust collection space and a motor blower space, and wherein a surrounding partition joint seal is fastened to the lower portion in a gap between the opposing edges of the lower portion and the associated cover portions, the seal having a sealing lip having one end held on a sealing foot of the joint seal, the sealing lip extending into the gap and having an inclination of less than 90° relative to the plane receiving the gap.

[0003] WO 2010 / 121656 A1 discloses a method for cleaning a first and a second filter of a suction device.

[0004] WO 2012 / 107595 A1 discloses a vacuum cleaner including a suction inlet, a waste collection container, a filter device, a suction line, and a suction unit. The waste collection container is flowably connected to the suction unit via the filter device and the suction line. The filter device is subjected to negative pressure by the suction unit. An external air valve device is included, allowing external air to be introduced into the filter device on the clean side. For cleaning the filter device, the external air valve device can be moved from a closed position to an open position and back to a closed position. A battery device is provided to power the external air valve device.

[0005] WO 2012 / 107103 A1 discloses a method for cleaning the filter of a vacuum cleaner.

[0006] WO 2015 / 139751 A1 also discloses a method for cleaning filters in vacuum cleaners.

[0007] EP 3 162 267 A1 discloses a vacuum cleaner.

[0008] CN 209996199 U, JP 2018 186931A, CN 107198495 A, CN 206293491U, CN206285056 U and CN 106175601 A also disclose suction machines.

[0009] WO 2014 / 119160 A1 discloses a vacuum cleaner with a battery device.

[0010] WO 00 / 36969A1 discloses a suction device with a battery pack.

[0011] US 2005 / 0155177 A1 discloses a vacuum cleaner in which a battery pack is arranged near the bottom side of the can.

[0012] JP 1 209038 discloses a vacuum cleaner.

[0013] EM 006934220 0001 discloses a rechargeable vacuum cleaner. Summary of the Invention

[0014] The objective of this invention is to provide a suction device of the type described at the beginning, which is simple to operate.

[0015] According to the present invention, this task is accomplished in the aforementioned suction device by the following manner: the center of mass of the device body is at least approximately located on the intermediate plane; the filter cleaning device is arranged on the device body such that the center of mass of the filter cleaning device is at least approximately located on the intermediate plane; and the battery device is arranged on the device body such that the center of mass of the battery device is at least approximately located on the intermediate plane.

[0016] The battery in the battery device has a relatively high mass. In the solution according to the invention, the center of mass of the battery device is located on the mid-plane. Therefore, no tipping moment or related tipping moment is generated by positioning the battery device on the main body of the device.

[0017] Thus, the suction device can be held or lifted without requiring the operator to balance the pouring torque.

[0018] The suction device according to the present invention has high stability.

[0019] Specifically, at least one of the following features should be set:

[0020] - The battery assembly is arranged on the central plane and / or symmetrically on the main body of the equipment relative to the central plane;

[0021] - The battery device includes multiple battery cells arranged on a central plane and / or symmetrically arranged relative to the central plane;

[0022] - The filter cleaning device is arranged on the central plane and / or symmetrically with respect to the central plane;

[0023] - The filter cleaning device has multiple external air valves, which are arranged on the central plane and / or symmetrically arranged on the main body of the device relative to the central plane.

[0024] Specifically, at least one of the following features should be set:

[0025] - The main body of the equipment has a first longitudinal side and a second longitudinal side opposite to the first longitudinal side, and the middle plane is located in the center between the first longitudinal side and the second longitudinal side;

[0026] - The main body of the equipment has a first transverse side and an opposite second transverse side, and the intermediate plane is transverse to the first transverse side and / or transverse to the second transverse side;

[0027] - At least one of the following features is arranged on the first lateral side of the main body of the equipment, which is oriented laterally to the intermediate plane:

[0028] - Suction interface;

[0029] - Control panel;

[0030] - The wheel axle of the wheel assembly arranged on the main body of the equipment is oriented laterally and, in particular, perpendicularly to the intermediate plane;

[0031] - The rotation axis of the impeller of the blower unit and / or the rotation axis of the motor shaft of the blower motor of the blower unit are parallel to or located on the intermediate plane;

[0032] -The handles located on the main body of the equipment are situated on the center plane;

[0033] -The blower unit is located on the middle plane;

[0034] - The suction port is located on the middle plane of the main body of the device;

[0035] - The control panel is located on the central plane of the main body of the equipment.

[0036] The arrangement of the battery unit prevents or at least minimizes the tilting moment relative to the central plane. This results in high stability. The operator can easily lift the suction device, for example. This is particularly achieved by positioning the central plane centered between the first and second longitudinal sides.

[0037] The intermediate plane is transverse to the first and second transverse sides. The first transverse side can be used, for example, to secure or remove the battery cells of the battery device from the device body. In particular, the charging status display can be viewed via the first transverse side.

[0038] When the suction port and / or control panel are arranged on the first lateral side, simple operability and a compact structure are achieved.

[0039] More advantageously, the wheel axis of the wheel assembly is oriented laterally and, more particularly, perpendicularly to the midplane. This results in high stability. Because the wheel axis is oriented laterally to the midplane, the tilting moment relative to a plane perpendicular to the midplane is also kept low.

[0040] A compact structure is achieved when the impeller is located on the intermediate plane about the axis of rotation.

[0041] When the handle is in the center plane, the operator can lift the main body of the device without significant tipping, even when the battery is fixed to the main body. This eliminates the need for the operator to provide balancing force, resulting in simplified operability.

[0042] When the blower unit is located on the intermediate plane, the center of mass can be pre-defined on the intermediate plane in a simple way.

[0043] The compact structure and ease of operation are achieved because the suction port and / or control panel are located on the middle plane.

[0044] In one embodiment, the battery device includes at least a first battery cell and a second battery cell, wherein the battery cell is a battery and particularly a rechargeable battery, or a counterweight equivalent in weight to a battery.

[0045] For example, when the suction device operates with only one battery cell, it is advantageous that the counterweight is symmetrically fixed to the main body of the device relative to the electrically operated battery cell, thus preventing tipping torque. When multiple electrically operated battery cells are used on the main body of the device, a longer operating time of the suction device is obtained.

[0046] Specifically, at least one of the following features should be set:

[0047] - The first and second battery units are arranged on the main body of the device, spaced apart from the intermediate plane;

[0048] - The first and second battery cells have a spacing direction that is laterally and, in particular, perpendicular to the intermediate plane;

[0049] - The first and second battery units are arranged symmetrically or point-symmetrically with respect to the middle plane on the main body of the device;

[0050] - The first and second battery units are mounted on the main body of the equipment at a distance from the filter cleaning device;

[0051] - The first battery unit and / or the second battery unit are detachably fixed or can be fixed to the main body of the device.

[0052] This allows the suction device to be compactly constructed, resulting in simple operability. The center of gravity of the battery cell can be easily positioned on a geometrically intermediate plane, reducing tipping moments and thus achieving high stability. Operators can easily raise or lower the device body, for example.

[0053] When the first and second battery units are spaced apart from the filter cleaning device on the main body of the equipment, the function of the filter cleaning device is not hindered, or the necessary positioning of the battery units does not require any compromise on the function of the filter cleaning device.

[0054] When the first battery unit and / or the second battery unit are detachably fixed or can be fixed to the main body of the device, charging can be achieved on an external charging device. This results in a compact design for the suction device.

[0055] Advantageously, when the first and second battery units are held on the device body, the outlines of lines from the center of the first battery unit to the center of the second battery unit, from the center of the first battery unit to the center of the filter cleaning device, and from the center of the filter cleaning device to the center of the second battery unit form triangles, and in particular, equilateral triangles. The center of the battery unit or the filter cleaning device can be the centroid or geometric center of the respective component. A symmetrical arrangement is achieved through this triangular arrangement. This results in high stability of the suction device. Furthermore, a compact arrangement of components is achieved, thus again keeping the size of the suction device (even when a filter cleaning device is installed) relatively low.

[0056] Advantageously, one vertex of the triangle is located on the intermediate plane. This results in particularly high stability for the suction device.

[0057] Even more advantageously, the projection of the device's center of mass onto the standing plane lies within the projection onto the standing plane. This results in high stability for the suction device.

[0058] For the same reason, it is advantageous that the blower unit is located at least partially within the triangle.

[0059] In one embodiment, the device body has a housing (accommodation space) for a filter cleaning device and / or a filter assembly, which is closed by a movable cover. A battery assembly is arranged on the device body spaced apart from the cover. When the cover is removed (either completely removed or, for example, by flipping it over), the filter cleaning device can be accessed via the cover, for example, for maintenance purposes. The filter assembly can be replaced via the open cover if necessary. When the battery assembly is spaced apart from the cover, this access is not obstructed by the battery assembly or becomes more difficult.

[0060] For the same reason, it is advantageous that the battery unit is separated from the air duct of the filter cleaning unit. Outside air can be supplied via the air duct for cleaning the filter unit. Because the battery unit is separated from the air duct, there is no need to compromise on the functionality of the filter cleaning unit due to the presence of the battery unit.

[0061] In one embodiment, the device body has a first lateral side and a spaced-apart second lateral side, wherein a mid-plane is oriented laterally to the first lateral side and / or laterally to the second lateral side, wherein the device body has a first portion and a second portion, the first lateral side being formed on the first portion and the second lateral side being formed on the second portion, and has at least one of the following features:

[0062] -The battery assembly is arranged on the first part;

[0063] - The filter cleaning device and the filter device are arranged on the second part;

[0064] -The first lateral side is closer to the battery device than the second lateral side;

[0065] - Compared to the first lateral side, the second lateral side is closer to the filter cleaning device and the filter device;

[0066] - Compared to the second lateral side, the first lateral side is closer to the blower device, or the blower device is centered between the first lateral side and the second lateral side;

[0067] - A roller arrangement is provided on the first part, particularly having at least one of the following features:

[0068] - The roller assembly includes at least one steering roller;

[0069] - The roller assembly is located below the main body of the equipment;

[0070] - A wheel assembly is arranged on the second part, wherein, in particular, the wheels of the wheel assembly are laterally positioned relative to the main body of the equipment.

[0071] This allows for the creation of compact suction devices with high operational comfort. The suction devices also exhibit high stability. In particular, the suction devices are designed for mobility.

[0072] Advantageously, the main body of the equipment has a vertical axis perpendicular to the standing plane.

[0073] Therefore, it is possible to position the center of the battery unit and the center of the filter cleaning unit at the same height on the vertical axis on the main body of the equipment. This allows for a compact main body. The center of the battery unit or the center of the filter cleaning unit can be the center of mass or the geometric center.

[0074] An alternative could be that the center of the battery unit and the center of the filter cleaning unit are arranged at a height interval relative to the vertical axis on the main body of the equipment.

[0075] In one embodiment, the battery unit is positioned lower than the filter cleaning unit relative to the vertical axis and the standing plane. This allows for high stability because the center of gravity of the device body and the battery unit is relatively low.

[0076] For the same reason, it is advantageous that the battery unit is positioned lower than the blower unit relative to the vertical axis and the standing plane.

[0077] In one embodiment, the battery device is positioned on an intermediate ring, which is specifically arranged between the suction head and the aspirate container. This intermediate ring allows the suction head to be positioned without modification to accommodate the battery device. Similarly, the aspirate container does not need to be modified. The battery device can be positioned on the intermediate ring between the suction head and the aspirate container, and is thus positioned outside both the suction head and the aspirate container.

[0078] In one embodiment, the impeller of the blower unit is positioned on the main body of the equipment lower than the battery unit and / or filter cleaning unit relative to the vertical axis and standing plane. This results in a compact construction of the suction equipment, and especially the suction head.

[0079] In one embodiment, the device body includes a suction container and a suction head, wherein the suction head is detachably connected to the suction container, and particularly has at least one of the following features:

[0080] - The battery is located on the suction head;

[0081] -The blower unit is located on the suction head;

[0082] - The filter cleaning device is positioned on the suction head;

[0083] - The filter device remains on the suction head;

[0084] -The control panel is located on the suction head;

[0085] - The suction port is located on the suction head or the container for the suction material.

[0086] This results in a compact structure.

[0087] Alternatively, an intermediate ring may be disposed between the suction head and the suction container, on which the battery device is arranged, particularly having at least one of the following features:

[0088] - The middle ring is removable relative to the aspirate container;

[0089] - The middle ring can be removed relative to the suction head.

[0090] This allows the battery device to be positioned outside the suction head and the suction container.

[0091] Advantageously, the filter cleaning setup has at least one of the following features:

[0092] - The filter cleaning device is an automatic filter cleaning device;

[0093] - The filter cleaning device is configured as an external air valve cleaning device, wherein the filter device can be loaded with external air via at least one external air valve;

[0094] - The filter cleaning device has at least one of the following operating modes: automatic cleaning when the suction equipment is turned off, automatic cleaning when the suction equipment is turned on, and cleaning on demand.

[0095] This optimizes operator comfort. Effective filter cleaning, especially automatic filter cleaning, is ensured, thus relieving the operator of some of the burden.

[0096] In particular, the suction device is constructed as a stand-alone suction device. Attached Figure Description

[0097] The following description of preferred embodiments of the invention is used to explain the invention in more detail with reference to the accompanying drawings. Wherein:

[0098] Figure 1 A perspective view showing a first embodiment of the suction device;

[0099] Figure 2 As a view along direction A, it is shown according to Figure 1 Suction equipment;

[0100] Figure 3 Showing according to Figure 1 The suction device in Figure 1A sectional view in the plane represented by B;

[0101] Figure 4 Showing according to Figure 1 The suction device along according to Figure 3 Sectional view of line 4-4;

[0102] Figure 5 Showing according to Figure 1 The suction device along according to Figure 3 Sectional view of line 5-5;

[0103] Figure 6 A perspective view of a second embodiment of the suction device according to the present invention is shown, wherein each of its receiving portions has a closed cover;

[0104] Figure 7 Showing according to Figure 6 A cross-sectional view of the suction device;

[0105] Figure 8 Showing with Figure 7 The same view during the insertion of the battery cell into the associated housing;

[0106] Figure 9 Showing with Figure 7 Similar in accordance with Figure 8 Cross-sectional view when importing battery cells;

[0107] Figure 10 A perspective view of a third embodiment of a suction device according to the present invention is shown, having a first receiving portion and a second receiving portion, wherein a battery unit is placed in the first receiving portion and a cover over the second receiving portion is closed;

[0108] Figure 11 Showing according to Figure 10 A partial side view of the suction device;

[0109] Figure 12 Showing with Figure 11 The same view when importing battery cells;

[0110] Figure 13 A perspective view of a fourth embodiment of the suction device according to the present invention is shown;

[0111] Figure 14 A cross-sectional view of a fifth embodiment of the suction device according to the present invention is shown;

[0112] Figure 15 Showing according to Figure 14 A sectional view of the suction device along line 15-15; and

[0113] Figure 16A perspective view showing a sixth embodiment of the suction device. Detailed Implementation

[0114] like Figures 1 to 5 The first embodiment of the suction device according to the invention shown and marked with 10 is a stand-alone suction device.

[0115] The suction device 10 includes a device body 12. The device body 12 further includes a suction container 14 and a suction head 16 that is detachably mounted on the suction container 14.

[0116] The aspirate container 14 has a bottom 18 on which a surrounding wall 20 is arranged. An internal space 22 is formed between the bottom 18 and the wall 20, which is used to contain the aspirate. The aspirate can be directly contained into the internal space 22, or a filter bag can be positioned accordingly in the internal space 22 to contain the aspirate.

[0117] A transfer device marked with 24 is arranged on the main body 12 of the equipment.

[0118] A frame 26 is provided for this purpose, on which the transfer device 24 is mounted. The frame 26 has a receiving portion 28 in which the main body 12 of the device, which has the suction container 14, is detachably positioned. In principle, it is also possible to place the main body 12 of the device, which has the suction container 14, directly on the floor 29.

[0119] The transfer device 24 includes a wheel assembly 30 mounted on a frame 26. The wheel assembly 30 is a rear wheel assembly. It includes a right (rear) wheel 32 and a left (rear) wheel 34. The right wheel 32 and the left wheel 34 are rotatable about a common wheel axis 36. When the suction device 10 is properly placed on a flat floor 29, the wheel axis 36 is parallel to the floor 29.

[0120] The main body 12 of the equipment has a first longitudinal side 38 and a second longitudinal side 40 opposite to the first longitudinal side. The wheel axle 36 is oriented transversely to the first longitudinal side 38 and the second longitudinal side 40, respectively.

[0121] The right wheel 32 is located in front of the first longitudinal side 38, and the left wheel 34 is located in front of the second longitudinal side 40. In particular, when the suction container 14 is placed into the frame 26, the right wheel 32 and the left wheel 34 are respectively located laterally in front of the container wall 20 of the suction container.

[0122] The transfer device 24 also includes a roller device 42. In the illustrated embodiment, the roller device 42 has a first steering roller 44 and a second steering roller 46.

[0123] The first steering roller 44 and the second steering roller 46 are arranged on the frame 26 such that the steering rollers are positioned below the suction container when the suction container 14 is placed on the frame 26.

[0124] The main body 12 of the equipment has a first transverse side 48 and a second transverse side 50 spaced apart from and opposite to the first transverse side. The first transverse side 48 and the second transverse side 50 are arranged transversely to the first longitudinal side 38 or the second longitudinal side 40, respectively.

[0125] When the main body 12 is positioned on the frame 26, the roller assembly 42 is arranged in the front region of the main body 12; the first lateral side 48 is closer to the roller assembly 42 than the second lateral side 50.

[0126] The wheel assembly 30 is positioned in the rear region of the main body 12. The second lateral side 50 is closer to the wheel assembly than the first lateral side 48.

[0127] In one embodiment, a receiving portion 52 is arranged on the frame 26, on which a suction nozzle or the like can be fixed.

[0128] The aspiration container 14 is constructed in a cylindrical shape via its walls 20 and bottom 18. For example, the aspiration container is cylindrical or cuboid (especially with rounded edges).

[0129] The suction head 16 of the main body 12 can be detachably fixed to the suction container 14 via a locking flap device 54.

[0130] When the suction head 16 is removed from the suction container 14, the internal space 22 can be accessed from the upper side of the suction container 14 away from the bottom 18. The suction material can then be emptied from the internal space 22 or the filter bag can be removed from the internal space 22.

[0131] The suction head 16 forms a cap for the suction container 14.

[0132] The suction device 10 has a standing plane 56 via a transfer device 24. The standing plane 56 is defined by wheels 32 and steering rollers 44, 46, which support the suction device 10 on the floor 29 when it is placed.

[0133] When floor 29 is flat, standing plane 56 coincides with the floor.

[0134] In an alternative embodiment, the suction container 14 is positioned stably on the floor 29 via its bottom 18. A corresponding standing surface is then formed via the underside of the bottom 18.

[0135] The main body 12 of the equipment has a vertical axis 58 (see, for example, see...) Figure 2and Figure 3 The vertical axis 58 is oriented laterally and, in particular, vertically relative to the standing plane 56. The vertical axis 58 is oriented laterally and, in particular, vertically relative to the wheel axis 36.

[0136] The suction head 16 includes a suction head body 60. The suction head body 60 is configured as a housing. The suction head body has a first suction head lateral side 62 and a second suction head lateral side 64 opposite to the first suction head lateral side.

[0137] A first suction head longitudinal side 66 and a second suction head longitudinal side 68 extend between the first suction head lateral side 62 and the second suction head lateral side 64.

[0138] The lateral side 62 of the first suction head, together with the area corresponding to the wall 20 of the suction head 16, forms the first lateral side 48 of the device body 12. The lateral side 64 of the second suction head, together with the area corresponding to the wall 20, forms the second lateral side 50 of the device body 12. The longitudinal side 66 of the first suction head, together with the area corresponding to the wall 20, forms the first longitudinal side 38 of the device body 12. The longitudinal side 68 of the second suction head, together with the area corresponding to the wall 20, forms the second longitudinal side 40 of the device body 12.

[0139] A blower assembly 72 is arranged on the suction head 16 within a corresponding receiving space 70 of the suction head body. The blower assembly 72 includes at least one impeller 74, which is supported in a manner rotatable about a rotation axis 76. This rotation axis 76 is transverse and, in particular, perpendicular to the wheel axis 36. The rotation axis 76 is oriented parallel to or at a small acute angle (in particular, less than 30°) to the vertical axis 58.

[0140] In principle, it is possible that, with the impeller 74 arranged "flat", the rotation axis 76 is oriented laterally and, in particular, approximately vertically relative to the vertical axis 58 (not shown in the figure).

[0141] The blower assembly 72 also includes a blower motor 78. The blower motor 78 is an electric motor. The blower motor includes a shaft 80 on which an impeller 74 is mounted anti-rotatingly. The axis of rotation of the shaft 80 coincides with the axis of rotation 76 of the impeller 74.

[0142] Blower unit 72 generates a suction flow.

[0143] The suction device 10 has a filter assembly 82. The filter assembly 82 is held on a filter holder 84. The filter assembly 82 includes, for example, a flat pleated filter or a cartridge filter.

[0144] In the illustrated embodiment, the filter holder 84, and thus the filter device 82, is mounted on the suction head 16; when the suction head 16 is removed from the suction container 14, the filter device 82 is also removed together.

[0145] In principle, it is also possible that the filter device 82 is held on the suction container 14. Therefore, in this embodiment, the filter holder is placed on the suction container 14 (not shown in the figure).

[0146] An additional receiving space 86 is formed in the suction head body 60. A filter cleaning device 88 is arranged in the receiving space 86. The filter cleaning device 88 is positioned relative to the filter device 82 in such a way that the filter device 82 can be cleaned.

[0147] During the operation of the suction device 10, dust accumulates on the filter device 82. This increases the flow resistance through the filter device 82. The filter cleaning device 88 provides cleaning through mechanical action on the filter device 82.

[0148] Filter cleaning can be triggered manually or performed automatically. For example, filter cleaning can be performed as needed by filter cleaning device 88. The filter cleaning is automatically initiated when the corresponding measurement detects a need for it.

[0149] An example of a demand-based method for cleaning filters is described in WO 2015 / 139751 A1, which is explicitly and fully cited in the document.

[0150] In one embodiment, the filter cleaning device 88 is configured as an external air valve device 90. External air can be supplied to the filter device 82 via this external air valve device to loosen and, to some extent, blow away the attached solid particles.

[0151] For this purpose, an external air valve 92 is arranged in the internal space 86 on the suction head 16. The external air valve includes a valve retainer fixedly arranged in the suction head 16, which forms a valve seat for a movable valve body in the form of a valve disc. The valve seat is loaded with a closing force toward the valve retainer by means of a closing spring. The closing spring is clamped between a plate-shaped filter retainer having multiple flow channels fixedly arranged in the suction head 16 and the valve disc. In addition to the closing spring, the filter retainer also carries a stop element in the form of a stop spring. This stop spring has a linear characteristic line (preferably like the closing spring). For example, the stop spring is constructed as a helical spring. Unlike the closing spring, the stop spring is not preloaded in the closed position of the valve disc. Only when the valve disc is lifted from the valve seat of the valve retainer does the stop spring come into contact with the underside of the valve disc and is compressed slightly during further movement of the valve disc. Therefore, the stop spring applies an increasing restoring force to the valve disc and accelerates the movement of the valve disc from the closed valve position through the open valve position and back to the closed valve position. In the closed valve position, the valve disc is spaced from the valve retainer, which is configured as a valve seat. The valve retainer has multiple through openings, the opening areas of which are closed by the valve disc when the valve disc is in the closed valve position. The suction head 16 has a lateral opening at the height of the valve retainer. Outside air can flow into the through opening in the valve retainer through the lateral opening. If the valve disc is in the open valve position, spaced apart from the valve retainer, the lateral opening is flow-connected to the suction line through the through opening in the valve retainer, and outside air can be loaded onto the clean side 94 of the filter device 82. The clean side 94 is located away from the suction container 14.

[0152] If the valve disc is in its closed valve position, the flow connection between the lateral opening and the suction line is interrupted.

[0153] In the central region, the valve retainer carries an electromagnet. In the peripheral direction, the electromagnet is surrounded by an annular space, into which a guide sleeve formed on the upper side of the valve disc is recessed. The guide sleeve houses a magnetizable element, for example, in the form of an iron plate, which, in the closed position of the valve disc, rests against the free end edge of the electromagnet and, together with the electromagnet, forms a closed magnetic circuit.

[0154] An (electronic) control device 96 is arranged on the suction head 16.

[0155] The electromagnet is electrically connected to the control device 96 via a power supply line. During normal suction operation of the suction device 10, the control device 96 supplies current to the electromagnet. The resulting magnetic field reliably holds the valve disc in its closed position. The holding force of the electromagnet is supported by the elastic force of the closing spring.

[0156] If the control device 96 interrupts the current supply to the electromagnet, the magnetic holding force acting on the valve disc is released, and due to the pressure difference acting on the valve disc, the valve disc lifts off the valve seat against the action of the closing spring. This pressure difference is derived from the external pressure of the external air in the area of ​​the valve holding portion and the internal pressure within the suction line. Then, external air suddenly flows into the suction line through the through opening in the valve holding portion, and the filter device 82 is suddenly loaded with external air on its clean side 94. This causes the filter device 82 to be subjected to mechanical vibration. Furthermore, the external air flows through the filter device 82 in a counter-current direction, that is, opposite to the flow direction 98 present during normal suction operation. This results in the filter cleaning device 88 effectively cleaning the filter device 82.

[0157] Exemplary construction aspects of the filter cleaning device 88 and, in particular, the external air valve device 90 are referenced to WO 2015 / 139751 A1, WO 2012 / 107103 A1, WO 2012 / 107595 A1, or the international application PCT / EP2020 / 066794 dated June 17, 2020, which has not been previously published. These documents are explicitly cited.

[0158] The filter device 82 has a dirty side 100 that faces the interior space 22 of the suction container 14. This dirty side is away from the clean side 94, and the clean side faces the filter cleaning device 88.

[0159] In one embodiment, on the device body 12, the second lateral side 50 is positioned closer to the filter cleaning device 88 and the filter device 82 than the first lateral side 48.

[0160] On the suction head 16, the first lateral side 48 is positioned closer to the blower assembly 72 than the second lateral side 50 (see [link]). Figure 3 ), or centered between the first lateral side 48 and the second lateral side 50.

[0161] The main body 12 of the device has an upper side 102, which is located on the suction head 16.

[0162] A movable cover 104 is arranged on the upper side 102. The movable cover 104 closes upward to receive the space 86. The cover 104 can be removed (e.g., as a whole or via a flip function or similar function) to allow access to the filter cleaning device 88. If necessary, the filter device 82 can also be replaced with the cover 104 open.

[0163] The suction device 10 has a suction port 106. A suction hose or suction tube can be connected to the suction port 106. The suction port 106 is arranged on the device body 12.

[0164] In the illustrated embodiment 10, the suction port 106 is arranged on the suction head 16. Fitting 108 (see...) Figure 3 The material is guided from the suction port 106 through the suction head 16 into the internal space 22 of the suction container 14. A sleeve 110 is connected to the fitting 108, which extends into the internal space 22 when the suction head 16 is placed on the suction container 14. A suction flow can be provided via the sleeve 110 so that the suction material can then be drawn in via the suction tube or suction hose provided on the suction port 106.

[0165] The connector 110 can also be configured as a support for the filter bag.

[0166] The suction port 106 is arranged on the first lateral side 48 of the device body 12. In the illustrated embodiment 10, the suction port is arranged on the lateral side 62 of the first suction head.

[0167] In principle, it is also possible that the suction port is placed on the suction container 14.

[0168] An operation panel 112 is arranged on the suction head 16. The operation panel 112 includes one or more operating elements for use by the user of the suction device 10.

[0169] In the illustrated embodiment 10, a knob 114 is provided as an operating element. The suction device 10 can be activated or deactivated via this knob 114. The suction intensity can be adjusted if necessary.

[0170] In one embodiment, the knob 114 can also be used to adjust whether automatic filter cleaning should be performed by the filter cleaning device 88.

[0171] The control panel 112 may also include additional or alternative elements, such as a separate on / off switch, or a switch for activating automatic filter cleaning, or a switch for (instantaneous) activation of filter cleaning.

[0172] The operation panel 112 is electrically or signal-connected to the control device 96 by means of its functional components.

[0173] The control panel 112 is mounted on the suction head 16 on the main body 12 of the device and is located on the first lateral side 48; the control panel 112 is arranged on the lateral side 62 of the first suction head.

[0174] In the illustrated embodiment, the operation panel 112 and the suction port 106 are adjacent to each other. The operation panel 112 is positioned above the suction port 106 relative to the vertical axis 58 (in the direction away from the bottom 18 of the suction container 14).

[0175] In particular, the control panel 112 and the suction port 106 are arranged on the middle plane 116 of the main body 12 of the device (see...). Figure 1 and Figure 2 ).

[0176] The suction port 106 and the operation panel 112 are respectively oriented on the intermediate plane 116 or aligned with each other.

[0177] The intermediate plane 116 is the geometrically intermediate plane of the equipment body 12. It is centrally located between the first longitudinal side 38 and the second longitudinal side 40. It is laterally oriented relative to the first transverse side 48 and the second transverse side 50.

[0178] The geometrically intermediate plane 116 of the main body 12 is oriented perpendicularly to the wheel axis 36.

[0179] The axis of rotation 76 is located on or parallel to the intermediate plane 116.

[0180] In particular, the vertical axis 58 is located within the intermediate plane 116.

[0181] The main body 12 of the device, and especially the suction device 10, is roughly mirror-symmetrical with respect to the central plane 116.

[0182] In particular, the transfer device 24 is configured in a mirror-symmetric manner with respect to the intermediate plane 116.

[0183] In particular, the center of the filter cleaning device 88 with the external air valve 92 is located on the intermediate plane 116.

[0184] The center of the filter cleaning device 88 is its center of mass and / or geometric center. Specifically, the center of the filter cleaning device 88 is located on the external air valve 92. It is configured such that the center of mass of the filter cleaning device 88 is at least approximately located on the intermediate plane 116. Here, "at least approximately" means that the center of mass of the filter cleaning device 88 is exactly located on the intermediate plane 116, or at a small distance from it, wherein this small distance is at most 10 cm, and particularly at most 5 cm, so as not to generate a tipping moment.

[0185] Furthermore, in one embodiment, the center of the blower assembly 72 is located on the intermediate plane 116. The center of the blower assembly 72 is the centroid of the blower assembly 72 and / or the geometric center of the blower assembly 72.

[0186] The suction device 10, and especially the center of mass 118 of the device body 12 ( Figure 2 , Figure 3 It is located on or at a small distance from the intermediate plane 116 (wherein the small distance is at most 10cm, and especially at most 5cm).

[0187] A battery unit 120 is provided to provide electrical energy required for operating the suction device 10, and in particular for providing electrical energy required for the blower motor 78, control device 96, and filter cleaning device 88. The battery unit 120 includes at least one rechargeable battery cell. In the illustrated embodiment, a first battery cell 122 and a second battery cell 124 are provided, which are rechargeable batteries (rechargeable batteries).

[0188] In principle, it is also possible, as will be explained in detail below, for a battery cell to have no battery and to include a counterweight for the electrically active battery cell, wherein the weight corresponds to the weight of the electrically active battery. The battery cell with the counterweight is constructed in the same external dimensions as the electrically active battery cell so that the counterweight can be inserted into the corresponding housing.

[0189] Each battery cell 122 is provided with a receiving portion. In the illustrated embodiment, a first receiving portion 126 is provided for the first battery cell 122, and a second receiving portion 128 is provided for the second battery cell 124.

[0190] The first receiving portion 126 and the second receiving portion 128 are arranged on the device body 12 and thus on the suction head 16.

[0191] Each battery cell 122 and 124 can be detachably inserted into its respective receiving portion 126 and 128.

[0192] Electrical contact devices 130 are respectively provided for the first receiving part 126 and the second receiving part 128 (see Figure 5 The electrical contact device 130 is securely mounted on the suction head body 60. The electrical contact device 130 is electrically connected to the control device 96.

[0193] When the battery cell 122 or 124 is correctly ("electrically") inserted and secured to the associated receiving portion 126 or 128, electrical contact is established with the electrical contact device 130, thereby enabling the corresponding battery cell 122 or 124 to provide the necessary electrical energy for operating the suction device 10.

[0194] The suction head body 60 includes an intermediate component 132. The intermediate component 132 is arranged on the first transverse side 48. The intermediate component is centrally located between the first longitudinal side 38 and the second longitudinal side 40. The intermediate component is located on the intermediate plane 116.

[0195] The suction port 106 is arranged on the intermediate component 132, and the operation panel 112 is arranged on the intermediate component.

[0196] In one embodiment, the control device 96 is located on or therein in the intermediate component 132.

[0197] Middleware 132 has an I-shape (see Figure 10 ), or according to Figure 1 The embodiment has a T-shape.

[0198] Receiving portions 126 and 128 are arranged laterally on the suction head 16 relative to the intermediate member 132. The intermediate member 132 separates the first receiving portion 126 from the second receiving portion 128.

[0199] In the T-shaped configuration of the intermediate component 132 in the suction device 10, the intermediate component includes a crossbeam 134 that extends above the first receiving portion 126 and the second receiving portion 128, respectively.

[0200] An operation panel 112 with knobs 114 is arranged at least partially on the lintel 134.

[0201] When cover 104 is closed (see...) Figure 1 The cover is supported on the intermediate member 132 and here on the lintel 134.

[0202] In one embodiment, the intermediate member 132 is inclined at an acute angle relative to the vessel wall 20 on the first lateral side 48. The corresponding angle 136 relative to the vessel wall 100 (see...) Figure 3 For example, within a range of approximately 25°.

[0203] The first receiving portion 126 and the second receiving portion 128 each include a guide rail 138 for the corresponding battery cell 122 or 124.

[0204] The suction head 16 has a recess or cross-section 140 for the first receiving portion 126 and the second receiving portion 128, respectively. The recess or cross-section is defined by a bottom 142. The bottom 142 is opposite to the crossbeam 134. The cross-section or recess 140 is located between the bottom 142 and the crossbeam 134 and extends in the direction of the second lateral side 50.

[0205] Guide rail 138 is positioned on the bottom 142.

[0206] The guide rail 138 is matched with the corresponding mating guide of the first battery unit 122 or the second battery unit 124.

[0207] A fixing device is provided, which is configured, for example, as a locking connection. When the battery cell 122 or 124 reaches its final position in the guide rail 138 on the corresponding receiving portion 126 or 128 (at which point there is contact with the electrical contact device 130, i.e., there is an electrically applied position), the final position is maintained, for example, by a detachable locking connection.

[0208] In one embodiment, the cross-section or recess 140 is at least generally formed in a (hollow) cubic shape.

[0209] The cross-section or recess 140 is defined by the vessel wall 144 in the direction toward the second transverse side 50. The vessel wall 144 is in particular the boundary wall of the receiving space 86 in which the filter device 82 is housed.

[0210] The cross-section or recess 140 passes transversely to the vessel wall 144 through another vessel wall 146. Figure 4 , Figure 5 The vessel wall 146 is spaced apart from the intermediate plane 116, and the vessel wall is parallel to the intermediate plane 116 or forms a small acute angle (especially less than 20°) with the intermediate plane 116.

[0211] The vessel wall 146, especially the vessel wall of the accommodating space 70 of the lateral clearance blower device 72.

[0212] In an embodiment of the suction device 10, the cross-section or recess 140 is laterally open, that is, toward the first longitudinal side 38 or toward the second longitudinal side 40.

[0213] The recess or cross-section 140 opens toward the first transverse side 48.

[0214] The cross-section or recess 140 is covered by the lintel 134. Here it can be configured such that the element 146 connected to the lintel 134 in the direction toward the second lateral side 50, together with the lintel 134, forms a cover or top plate for the recess or cross-section 140 and thus for the corresponding receiving portion 126 or 128, so as to provide the corresponding covering portion upward.

[0215] In particular, the cover 104 is supported on the element 148.

[0216] Each of the first receiving portion 126 or the second receiving portion 128 is formed by means of a cross-section or recess 140, a guide rail 138 and an electrical contact device 130.

[0217] The electrical contact device 130 is located within the area of ​​the wall 144.

[0218] The main body 12 of the equipment has opposite open or free spaces 360a and 360b. Free spaces 360a and 360b are respectively part of a recess or section 140. Free spaces 360a and 360b are located in front of their respective associated receiving parts; open or free spaces 360a are located in front of and associated with the first receiving part 126; open or free spaces 360b are located in front of the second receiving part 128.

[0219] Each of the open spaces or free spaces 360a and 360b extends downward (relative to the vertical axis 58) through the bottom 142. In particular, the bottom 142 is formed flat in the region of the open spaces or free spaces 360a and 360b.

[0220] The open portions or free spaces 360a and 360b open forward toward the first lateral side 48. The open portions or free spaces 360a and 360b also open laterally outward (toward the first longitudinal side 38 in the case of open portion or free space 360a, and towards the second longitudinal side 40 in the case of open portion or free space 360b). Correspondingly, the open portions or free spaces 360a and 360b are respectively limited by the intermediate member 132. The open portions or free spaces 360a and 360b are limited rearward by the associated first receiving portion 126 or by the associated second receiving portion 128.

[0221] The open or free spaces 360a and 360b pass upward through the clearance beam 134 in the suction device 10.

[0222] In order to guide their respective battery cells 122 or 124 into the matching receiving portions 126, 128, these battery cells are pushed through the corresponding empty portions or free spaces 360a or 360b.

[0223] Since the open spaces or free spaces 360a and 360b are open to the first lateral side 48, the movement through the open spaces or free spaces 360a and 360b is performed from the first lateral side 48.

[0224] When the respective battery cells 122 or 124 are positioned in the corresponding recesses 126 or 128, the respective battery cells 122 or 124 extend into the corresponding open portions or free spaces 360a or 360b using a portion of region 362 (see, for example, see...). Figure 1 )

[0225] Each battery cell 122 or 124 has a housing 364. The housing 364 has a first longitudinal side 366 and an opposite second longitudinal side 368. The housing also has a front side 370. A charging status display 160 is arranged on the front side 370.

[0226] Grippers 372 are arranged on the housings 364 of the respective battery cells 122 and 124 on the first longitudinal side 366 and the second longitudinal side 368, respectively. The grippers 372 particularly include a plurality of parallel beams.

[0227] When the respective battery cells 122, 124 are positioned on the device body 12, the corresponding transverse beams are oriented laterally and preferably vertically relative to the bottom 142.

[0228] In particular, the first battery cell 122 and the second battery cell 124 are configured in a mirror-symmetric manner with respect to their housing 364 (i.e., with respect to their external shape). Corresponding gripping devices 372 are respectively mounted on the first longitudinal side 366 and the second longitudinal side 368, so that each battery cell 122 or 124 is adapted to the two receiving portions 126, 128.

[0229] When the corresponding battery cell 122 or 124 is placed on the associated receiving portion 126 or 128, the gripping device 372 is positioned in the empty portion or free space 360a, 630b. In particular, the gripping device points outward relative to the corresponding first longitudinal side 38 or second longitudinal side 40.

[0230] The operator can grasp the corresponding battery units 122 and 124 on the external gripping device 372 and pull the corresponding battery units 122 and 124 out from the corresponding receiving parts 126 or 128.

[0231] The empty or free spaces 360a and 360b are located upstream of their respective receiving portions 126 or 128 relative to the introduction direction 150.

[0232] The receiving portions 126, 128 and the associated empty portions or free spaces 360a, 360b are configured such that when the battery cells 122, 124 are positioned on the respective receiving portions 126, 128, the respective battery cells 122, 124 do not extend beyond the first lateral side 48, nor do they extend beyond the first longitudinal side 38 or the second longitudinal side 40.

[0233] Battery cells 122 or 124 can be introduced along the introduction direction 150 and, in particular, pushed into the corresponding receiving portion 126 or 128. The opposite direction to the introduction direction 150 is the discharge direction. In this discharge direction, the corresponding battery cells 122 or 124 can be removed from the corresponding receiving portion 126 or 128.

[0234] The import direction 150 is predefined by the guide rail 138, and hereby predefined by the arrangement of the guide rail on the bottom 142.

[0235] The insertion direction 150 is transverse to the first transverse side 48. The corresponding battery cells 122 or 124 can be pushed into their respective receiving portions 126 or 128 via the first transverse side 48.

[0236] The import direction is 150 degrees horizontally to the vertical axis 58.

[0237] In the suction device 10 according to the first embodiment, the introduction direction 150 is perpendicular to the vertical axis 58. The introduction direction may also form an acute angle with the vertical axis (see [reference needed]). Figures 10 to 12 ).

[0238] The direction of introduction is 150 laterally and especially perpendicular to the wheel axis 36.

[0239] The inlet direction 150 is at least approximately parallel to the standing plane 56. “Approximately” here means that there is at most a small acute angle between the inlet direction 150 and the standing plane 56, such as less than 15°.

[0240] Correspondingly, this also applies to the export direction, which is the opposite direction to the import direction 150. Figure 1 In the figure, the direction of derivation is indicated by reference numeral 152.

[0241] In one embodiment, the suction port 106 is arranged at an acute angle relative to the vertical axis 58 via a central axis 154. Correspondingly, the suction port forms an acute angle 156 with respect to the standing plane 56. Figure 3 Arrangement. In particular, the suction port 106 is arranged such that the central axis 154 reaches at least substantially perpendicularly to the outer side of the intermediate member 132. Accordingly, the acute angle 156 is equal to or approximately equal to angle 136 in size.

[0242] For the insertion direction of the sleeve of the suction hose 158 (see...) Figure 3 It is parallel to the central axis 154. Correspondingly, the inlet direction 158 forms an acute angle with the vertical axis 58 or with the suction port 106.

[0243] In the illustrated embodiment, the guide direction 158 from the suction hose to the suction port 106 is at an acute angle to the guide direction 150 from the respective battery cells 122, 124 to their respective receiving portions 126 or 128, and the acute angle corresponds to the acute angle 156 in size.

[0244] The battery assembly 120 is equipped with a charging status display 160. The charging status display 160 displays the charging status for each battery cell 122 or 124.

[0245] In the illustrated embodiment, the charging status display 160 is arranged on the respective battery cell 122 or 124.

[0246] However, in principle, it is also possible that the charging status indicator 160 is arranged on the suction head 16, and that the first receiving portion 126 and the second receiving portion 128 are each equipped with their own charging status indicator 160. When the battery cells 122 and 124 are placed on their respective receiving portions 126 or 128, the charging status can be visually detected via the charging status indicator 160 on the respective battery cell 122 or 124, or the charging status indicator on the respective receiving portion 126 or 128.

[0247] Since the receiving portion 126 or 128 is arranged on the suction head 16, the operator can read the charging status display 160 from the first lateral side 48.

[0248] The charging status indicator 160 is arranged on a lateral side on the respective battery cells 122, 124, which is adjacent to the intermediate member 132 facing the lateral side 48 when the battery cells 122 or 124 are fixed on the respective receiving portions 126 or 128.

[0249] An operator positioned in front of the first lateral side 48 can place or remove their respective battery cells 122, 124 from the corresponding receiving portions 126, 128 via the first lateral side from this position.

[0250] The operator can use the corresponding sleeve to fix the suction hose to the suction port 106 from this position.

[0251] The operator can access the operation panel 112 from this position via the first lateral side 48 and perform the corresponding operation.

[0252] When the operator is positioned in front of the first lateral side 48, the charging status display 160 of the battery device 120 is within the operator's field of vision (see [reference]). Figure 4 ).

[0253] When the suction hose is fixed to the suction port 106, the operator can also move the suction device toward him by pulling the suction hose.

[0254] The receiving portions 126 and 128 are open toward the first lateral side 48 so that the respective battery cells 122 and 124 can be pushed in from the first lateral side 48 along the introduction direction 150.

[0255] In the illustrated embodiment 10, the receiving portions 126 and 128 are open toward their respective longitudinal sides 38 and 40.

[0256] The first receiving portion 126 and the second receiving portion 128 are arranged symmetrically and mirror-symmetrically on the suction head 16 with respect to the intermediate plane 116. These receiving portions are at the same height with respect to the vertical axis 58 or with respect to the standing plane 56.

[0257] The first receiving portion 126 and the second receiving portion 128, as well as their respective battery units 122 and 124, are laterally spaced from the intermediate plane 116 when they are fixed to the receiving portion 126 or 128.

[0258] Blower unit 72 utilizes at least a portion of the area (see Figure 5The suction head 16 is arranged between the first receiving portion 126 and the second receiving portion 128. The first receiving portion 126 and the second receiving portion 128 are further the first battery cell 122 and the second battery cell 124, which are spaced apart from each other in the lateral direction relative to the intermediate plane 116. This lateral direction is perpendicular to the vertical axis 58 and is at least at least parallel to the standing plane 56.

[0259] Furthermore, the control device 96 is positioned on the suction head 16, utilizing at least a portion of the area, between the first receiving portion 126 and the second receiving portion 128 (see [link]). Figure 4 ).

[0260] The operation panel 112 and the suction port 146 are located on the first lateral side 48 between the first receiving portion 126 and the second receiving portion 128.

[0261] The first receiving portion 126 and the second receiving portion 128 are laterally positioned relative to the blower device 72 on the suction head 16 in the lateral direction.

[0262] The first receiving portion 126 and the second receiving portion 128 each have a lower side 164 relative to the vertical axis 58. The lower side 164 is formed substantially by the bottom 142.

[0263] The receiving portions 126 and 128 also have an upper side 166 relative to the vertical axis 58. The upper side 166 and the lower side 164 are spaced apart from each other along the vertical axis 58.

[0264] The upper side 166 is basically formed by the lower side of the lintel 134 and by the lower side of the element 148.

[0265] The lower sides of the respective receiving portions 126 and 128 are at the same height relative to the vertical axis 58 and the suction port 106 (see [reference]). Figure 2 The suction port 106 has a height extension. The lower side 164 is located within this height extension.

[0266] The upper side 166 of each of the receiving portions 126 and 128 is at the same height as the operation panel 112 relative to the vertical axis 58 (see...). Figure 2 The operation panel 112 also has an extension in the height direction, and the upper side 166 is located within this extension relative to the vertical axis 58.

[0267] This also applies when the corresponding battery cells 122 and 124 are positioned on their respective receiving portions 126 and 128. The lower side of each battery cell 122 or 124 is at the same height as the suction port 106. The upper side of each battery cell 122 or 124 is at the same height as the operation panel 112.

[0268] The control panel 112 may be equipped with a center 168, which is located on the intermediate plane 116.

[0269] A first line from the center 168 to the geometric center of the first receiving portion 126, a second line from the center to the corresponding (geometric center) of the second receiving portion 128, and a third line from the center of the second receiving portion 128 to the center of 126 together form a straight line, or, as in the case of the suction device 10, a triangle 170. Due to the symmetrical arrangement of the first receiving portion 126 and the second receiving portion 128 with respect to the intermediate plane 116, this triangle 170 is an equilateral triangle. Figure 2 ).

[0270] When the respective battery cells 122 and 124 are arranged on the receiving portions 126 and 128 and the battery cells 122 and 124 are assigned a center, which can be the center of gravity or the geometric center, then the corresponding line to the center 168 also forms a triangle.

[0271] A first line from the center of the first receiving portion 126 to the center 172 of the suction port 106, a second line from the center 172 to the center of the second receiving portion 128, and a third line from the center of the second receiving portion 128 to the center of the first receiving portion 126 together form a triangle or a straight line.

[0272] The triangle 176 is also equilateral.

[0273] The center 172 of the suction port 106 is located on the intermediate plane 116. This center corresponds substantially to the intersection of the central axis 154 and the lateral side 62 of the first suction head.

[0274] When battery cells 122 and 124 are placed into their respective receiving portions 126 and 128, a first line between the center of the first battery cell 122 and the center of the second battery cell 124, a second line between the center of the first battery cell 122 and the center of the second battery cell 124, and a third line between the center of the second battery cell 124 and the center of the first battery cell 122 together form a triangle.

[0275] Figure 2 An embodiment with triangles 170 and 176 is shown.

[0276] In principle, it is also possible to reduce triangle 170 or triangle 176 to a straight line by bringing the suction port 106 closer to the control panel 112.

[0277] When the first battery unit 122 and the second battery unit 124 are inserted, their common center of mass is located on the intermediate plane 116. The center of mass 118 is located on the intermediate plane 116, or has a small distance from the intermediate plane 116 (especially less than 10 cm, and preferably less than 5 cm). Thus, no tilting torque is generated on the device body 12 through the battery device 120.

[0278] In principle, it can be configured such that, in order to prevent a tipping torque when only one electrically active battery cell is placed, another battery cell 122 forms a counterweight, which is to some extent a "battery replica" and ensures that the center of mass of the battery device is located on the intermediate plane 116.

[0279] A handle 178, particularly in the form of an arc, is arranged on the lid 104. In one embodiment, the handle 178 is arranged such that it does not extend beyond the lid surface of the lid 104. The lid surface 104 can be used, in particular, as a surface for placing items.

[0280] Handle 178 is located on the middle plane 116.

[0281] When the cover 104 is secured, the main body 12 of the device can be grasped and, in particular, lifted via the handle 178.

[0282] Due to the symmetrical arrangement, particularly the fact that the center of mass 118 of the main body of the device, including the battery unit 120, is located on the intermediate plane 116, no tipping moment is generated.

[0283] The handle 178 has a crossbeam 180 for gripping, which extends in a direction between the first lateral side 48 and the second lateral side 50. Furthermore, the crossbeam 180 is located on the intermediate plane 116.

[0284] Therefore, no tipping moment is generated during lifting. For this purpose, the main body 12 of the device can be lifted out of or placed into the receiving part 28 in a simple manner, for example.

[0285] In order to "position" the centroid 118 on the intermediate plane 116, or to "position" it at a small distance from the intermediate plane, the blower assembly 72 is positioned on the intermediate plane 116. Additionally, the filter cleaning assembly 88 is located on the intermediate plane.

[0286] When the corresponding battery cells 122 and 124 are placed into the receiving portions 126 and 128, the line contour 182 formed by the lines between the center of the first battery cell 122, the center 184 of the filter cleaning device 88, the center 184 and the center of the second battery cell 124, and the center of the first battery cell 122 and the center of the second battery cell 124 has a triangular shape, which in particular has an equilateral triangle shape.

[0287] Center 184 is the geometric center or centroid of the filter cleaning device 88.

[0288] The vertices of the triangle in the triangular profile 182 are located on the intermediate plane 116.

[0289] The projection of this triangle onto the standing plane 56 is also a triangle. The projection of the centroid 118 onto the standing plane 56 lies within the triangle of this projection.

[0290] This results in high stability and minimized tipping moment.

[0291] In one embodiment, the blower assembly 72 utilizes at least a portion of the area, and preferably most of it, within the triangle 12 (see [link]). Figure 5 ).

[0292] The main body 12 of the equipment may be equipped with a first part 186 and an adjacent second part 188. A first lateral side 48 is arranged on the first part 186. A second lateral side 50 is arranged on the second part 188. The first part 186 and the second part 188 "share" a first longitudinal side 38 and a second longitudinal side 40.

[0293] Receiving portions 126 and 128 are arranged on the first portion 186. Correspondingly, the battery device 120 is arranged on the first portion 186.

[0294] The filter cleaning device 88 is arranged on the second part 188.

[0295] When positioned on the suction head 16, the first lateral side 48 is closer to the battery device 120 having the first battery unit 122 and the second battery unit 124 than the second lateral side 50.

[0296] Compared to the first lateral side 48, the second lateral side 50 is closer to the filter cleaning device 88 on the second part 188.

[0297] In one embodiment, the blower assembly 72 is arranged on the first portion 186.

[0298] Compared to the second lateral side 50, the first lateral side 48 is closer to the blower device, or the blower device is centrally located between the first lateral side 48 and the second lateral side 50.

[0299] When the main body 12 of the device is positioned in the receiving part 28, the wheel device 30 is geometrically arranged on the second part 188, while the roller device 42 is arranged on the first part 186.

[0300] The wheel axis 36 is perpendicular to the middle plane 116.

[0301] This also prevents the tilting moment from the tilting axis, which is perpendicular to the fictitious relative intermediate plane 116.

[0302] In general, the suction device 10 was placed stably on the floor 29, even when the relatively heavy battery device 120 was fixed to the suction head 16 and thus to the device body 12.

[0303] It can be configured such that the filter cleaning device 88 is arranged at the same height as the housings 126, 128 relative to the vertical axis 58, especially when comparing the center 184 with the center (geometric center) of the first housing 126 and the second housing 128.

[0304] In particular, the centers of battery cells 122 and 124 are at the same height as center 184.

[0305] It is also possible that the center 184 of the filter cleaning device 88 has a height gap along the vertical axis 58 relative to the center of the first battery cells 122, 124 (and therefore relative to the center of the battery device 120).

[0306] In one embodiment, the impeller 74 of the blower assembly 72 is positioned below the first and second receiving portions 126 and 128 relative to the vertical axis 58; that is, the impeller 74 is located below the respective bottom 142 relative to the vertical axis 58 (see [link]). Figure 3 ).

[0307] This results in optimized space utilization.

[0308] In the case of the suction device 10, the suction port 106 and the operation panel 112 are arranged on the first lateral side 48 to simplify the operator's operation.

[0309] The operator can read the charging status display 160 from the first lateral side 48.

[0310] Battery devices 122 and 124 can be inserted or removed via the first lateral side 48.

[0311] The battery assembly 120 is arranged in a mirror-symmetric manner with respect to the intermediate plane 116. The center of mass 118 of the main body 12 is located at least approximately on the intermediate plane 116.

[0312] Due to the symmetrical arrangement of the battery device 120 relative to the intermediate plane 116, even when the battery cells 122 and 124 are fixed on the receiving portions 126 and 128, the center of mass does not shift significantly from the intermediate plane.

[0313] This results in no tipping moment or at most a very low tipping moment relative to a fictitious tipping axis that is perpendicular to the vertical axis 58 and thus lies within the intermediate plane 116.

[0314] This results in the high stability of the suction device 10.

[0315] Furthermore, the main body of the device 12 can be raised, lowered, or held in an inconsequential manner.

[0316] The triangular line profile 182 achieves optimized space utilization and minimizes the tipping moment. It also minimizes the tipping moment along the fictitious tipping axis perpendicular to the intermediate plane 116.

[0317] This provides simplified operability for the operator. The suction device 10 can also be compactly configured with the filter cleaning device 88.

[0318] The battery cells 122 and 124 can be positioned flush with or retracted relative to the first lateral side 58 and the longitudinal sides 38 and 40 on the device body 12 by means of the open spaces or free spaces 360a and 360b that correspond to the receiving portions 126 and 128. The battery cells 122 and 124 do not extend beyond the envelope of the device body 12; in particular, they do not extend beyond the first lateral side 48 and the longitudinal sides 38 and 40.

[0319] Furthermore, when the battery cells 122 and 124 are positioned on their respective receiving portions 126 or 128, the operator can easily pull the corresponding battery cells 122 and 124 out of their respective receiving portions 126 and 128 via the gripping device 372, which can be accessed via the gaps or free spaces 360a and 360b.

[0320] In this principle, it is possible that operability via the first lateral side 48 also occurs in embodiments of the suction device that do not have a filter cleaning device 88.

[0321] In principle, it is possible for the suction device 10 to operate via the battery device 120. Alternatively, it is also possible for the suction device 10 to operate via mains current.

[0322] In particular, it can be configured that the charging of the rechargeable battery cells 122 and 124 is performed outside the suction device 10, and therefore the corresponding battery cells 122 and 124 can be removed.

[0323] Alternatively, the charger can be integrated into the suction device 10, even though the battery cells 122 and 124 are removable.

[0324] exist Figures 6 to 9 The second embodiment of the suction device according to the invention, shown and marked with 190, is largely constructed the same as the suction device 10. The same reference numerals are used for the same components as for the suction device 10. The main difference between the suction device 190 and the suction device 10 lies in the construction of the receiving portion for the battery device 120.

[0325] The suction device 190 includes a suction container 14 and a suction head 192. The suction head 192 has a first receiving portion 194 and a second receiving portion 196 for respective battery devices 122, 124.

[0326] The suction head 192 is, in principle, the same as the suction head 16 except for the receiving parts 194 and 196.

[0327] The difference between the receiving parts 194 and 196 and the receiving parts 126 and 128 is that they each have a closed chamber 198.

[0328] In front of the chambers 198 of each of the receiving parts 126, 128, a void or free space corresponding to the void or free space 360a, 360b in the suction device 10 is formed on the suction head 192.

[0329] Such a chamber 198 includes a wall 200 having an internal space 202. The chamber 198 is cubic in shape.

[0330] The chamber 198 faces the opening 204 of the first lateral side 48 corresponding to the lateral side. The opening 204 is an inlet opening for introducing the corresponding battery cell 122 or 124 into the internal space 202.

[0331] A movable cover 206 is placed on the chamber 198, which is used to close the chamber 198.

[0332] Cover 206 has an initial position 208 ( Figure 6 , Figure 7 In this initial position, the cover is placed on the inlet opening 204 to close the chamber 198.

[0333] For example, a spring device 210 is provided that holds the cover 206 in the initial position 208 or brings it to the initial position (see below).

[0334] The interior space 202 is closed when it is in the initial position 208 of the cover 206 and is therefore protected from dust.

[0335] An electrical contact device 130 is arranged in the interior space 202. This is also protected against dust.

[0336] In particular, when no battery unit 122 or 124 is placed on its respective receiving portion 194, 196, the cover 206 is in its initial position 208.

[0337] Battery cells 122 or 124 can be pushed into their respective receiving portions 194, 196 (see...) Figure 8 and Figure 9 (The corresponding intermediate state is shown for battery cell 124).

[0338] Import is performed in the import direction corresponding to import direction 150. Figure 7 The cover 206 is arranged as a flap on the upper side 212 of the chamber 198 (see...). Figure 9 When the corresponding battery cell 122 or 124 is pushed into the inlet opening 204, the cover 206 is pivoted and pivots into the inner space 202.

[0339] The corresponding swing axis 214 of the swing joint of the support cover 206 is oriented transversely to and, in particular, perpendicularly to the corresponding vertical axis 58. The swing axis 214 is oriented, in particular, parallel to the standing plane corresponding to the standing plane 56 of the suction device 190.

[0340] For cover 206, pivoting from the initial position 208 can only be achieved in the direction of the internal space 202 (see...). Figure 9 ).

[0341] The force required to pivot cover 206 about pivot axis 214 into interior space 202 is applied by the operator when moving the corresponding battery cell 122 or 124.

[0342] Figure 8 The image shows an intermediate state in which battery cell 122 has been inserted.

[0343] In this state, the corresponding cover 206 is located above the battery cell 122 in the internal space 202.

[0344] Figure 8 The image also shows the state of the second battery cell 124 being inserted and pushed in.

[0345] from Figure 9 As can be seen, this causes the cover 206 to swing upward into the internal space 202, and then the second battery unit 124 can be pushed in until it reaches a fixed position. In the fixed position, electrical contact is again established with the electrical contact device 130.

[0346] When the battery cells 122 and 124 are positioned on their respective receiving portions 194 or 196, the battery cells extend into the corresponding open spaces or free spaces in front of their respective receiving portions 194 and 196 in a manner similar to that described in conjunction with the suction device 10.

[0347] Then, the operator can freely access the gripping devices 372 on each of the battery cells 122, 124, and pull them out easily. This operation method is in principle the same as described above for the combined suction device 10.

[0348] When the corresponding battery cells 122 and 124 are removed again, the cover 206 swings back to its initial position 208 due to the spring loading of the spring device 210, and the chamber 198 is sealed off in a dustproof manner.

[0349] The receiving parts 194 and 196 are arranged relative to other components of the suction device 10 (operation panel 112, suction port 106, blower device 72, filter cleaning device 88), as described above in conjunction with the suction device 10 having receiving parts 126 and 128.

[0350] exist Figures 10 to 12 As shown in, where Figure 11 , Figure 12 Another embodiment of the suction device 216 according to the invention, shown in partial view, differs from the suction device 10 in the construction of the receiving portion for the battery device 120. The same reference numerals are used for the same elements as in the suction device 10.

[0351] A suction head 218 is installed on the corresponding suction container 14.

[0352] The suction head 218 has an intermediate part 220. An operation panel 112 with a knob 114 and a suction port 106 are mounted on the intermediate part 220.

[0353] The intermediate member 220 has an I-shape and, like the intermediate member 132 of the suction device 10, is inclined on the wall 20 of the suction container on the corresponding first lateral side 48.

[0354] (Compared to intermediate component 132, intermediate component 220 does not have lintel 134).

[0355] Laterally relative to the intermediate component 220, a first receiving portion 222 and a second receiving portion 224 are respectively arranged on the suction head 218. This arrangement is as described above in conjunction with the suction device 10, and is geometrically mirror-symmetrical with respect to the intermediate plane of the main body of the suction device 216 corresponding to the intermediate plane 116.

[0356] The first receiving portion 222 and the second receiving portion 224 each include a chamber 226, which is closed except for the inlet opening 228.

[0357] A hinged cover 230 is disposed on chamber 226 over inlet opening 228. Cover 230 is specifically constructed as a flap. It is supported on chamber 226 in a hinged manner, allowing the cover to pivot into the interior space 234 of chamber 226 (see [link]). Figure 12 In particular, the cover is supported on the upper side 236 of the chamber 226.

[0358] The cover has an initial position 232 in which the cover closes the chamber 226 over the inlet opening 228 (see [reference]). Figure 10 ).

[0359] In the initial position 232 of the cover 230, the chamber 226 is completely sealed and therefore particularly protected from dust. The electrical contact device 130 arranged on the chamber 226 is also similarly protected from dust.

[0360] The initial position 232 of the cover 230, in particular, does not have battery cells 122 or 124 located in their respective receptacles 222, 224 (see Figure 10 The second accommodating part 224).

[0361] In particular, the cover 230 is equipped with a spring device that ensures that the cover 230 is held in the initial position 232 and automatically (when the corresponding battery unit 122 or 124 is removed) returns to the initial position 232.

[0362] The chambers 226 of the receiving parts 222 and 224 each have a longitudinal axis 238. Figure 11 ).

[0363] The chamber 226 extends along the longitudinal axis 238, and the longitudinal wall 240 of the corresponding chamber 226 is oriented substantially parallel to the longitudinal axis 238.

[0364] Chamber 226 is oriented at an acute angle 242 relative to longitudinal axis 56 (see Figure 11 The acute angle 242 is, for example, between 30° and 60°, and especially between 40° and 50°. Preferably, it is about 45°.

[0365] Therefore, the longitudinal axis 238 forms an acute angle 244 with respect to the plane 246 which is parallel to the standing plane 56.

[0366] In particular, acute angles 242 and 244 form a 90° angle.

[0367] Therefore, the acute angle 242 is preferably in the range of 30° to 60°, and especially in the range of 40° to 50°.

[0368] In a specific implementation, the acute angle is approximately 45°.

[0369] The corresponding battery cell 122 or 124 can be pushed into the corresponding chamber 226 of the corresponding receiving portion 222 or 224 in the introducing direction 248 through the introducing opening 228. The introducing direction 248 is parallel to the longitudinal axis 238 of the respective chamber 226.

[0370] Therefore, the direction 248 forms an acute angle 242 relative to the vertical axis 58 and an acute angle 244 relative to the plane 246.

[0371] The opposite direction 250 for removing the corresponding battery cells 122, 124 from the receiving portions 222, 224 is parallel to the introduction direction 248.

[0372] The suction device 216 has a direction of movement 252 on the ground 29 via the transfer device 24 (see...). Figure 10 Here, due to the steering rollers 44 and 46, the direction of movement 252 can be at a variable angle with the wheel axis 36.

[0373] The first receiving portion 222 and the second receiving portion 224 also form an acute angle due to their oblique arrangement relative to the vertical axis 58, and this acute angle is oriented relative to the displacement direction 252 in a manner that corresponds substantially to the acute angle 244.

[0374] The import direction 248 forms an acute angle with the displacement direction 252 (corresponding to acute angle 244).

[0375] The direction of introduction 248 forms an acute angle with the wheel axis 36, corresponding to the acute angle 244.

[0376] The oblique arrangement of the chambers 226 of the receiving portions 222 and 224 prevents or reduces movement, and especially migration, of the suction device 216 when the battery cell is inserted. This, to a certain extent, prevents the suction device from "moving away" when the battery cell is inserted into the corresponding receiving portion 222 or 224.

[0377] In the initial position 232, cover 230 is closed (see [reference needed]). Figure 10 The second accommodating part 224 or Figure 11 ).

[0378] When a battery cell, such as the second battery cell 124, is inserted, the cover 230 is flipped into the internal space 234. Figure 12 Then, the corresponding battery cell can be guided into the internal space 234 until it makes electrical contact with the electrical contact device 130 and reaches the corresponding fixed position.

[0379] This largely prevents the suction device 216 as a whole from moving on the ground 29.

[0380] When the corresponding battery cell is inserted, the battery cell extends beyond the chamber 226, thereby making the charging status display 160 visible to the operator from the first lateral side 48.

[0381] A gap or free space 255 is formed in front of the respective receiving portions 222, 224 on the suction head 218 (see, for example, see...). Figure 10 The empty space or free space 255 has, in principle, the same function as the empty spaces or free spaces 360a and 360b described above.

[0382] Due to the I-shaped structure of the intermediate component 220, the open space or free space 255 is not limited upwards.

[0383] When the corresponding battery cells 122 and 124 are placed in their respective chambers 226, the battery cells extend into the open space or free space 255 by utilizing a portion of their area, or more precisely, allow the operator to access the gripping device 372.

[0384] Specifically, when the corresponding battery cells 122 or 124 are placed on the chamber 226, these battery cells do not extend beyond the envelope of the suction head 118, nor do they extend beyond the first lateral side, nor do they extend beyond the corresponding longitudinal side.

[0385] The insertion or removal of the corresponding battery cells 122 and 124 is also performed from the first lateral side 48.

[0386] Figure 10 The image shows the first battery cell 122 that has been inserted.

[0387] When the corresponding battery cell 122 or 124 is removed from the chamber 226, the corresponding cover 230 flips back to the initial position 232 due to its spring loading, and the chamber 226 is also closed on the inlet opening 228.

[0388] In the case of suction device 216, the inlet opening 228 of receiving parts 222, 224 is at the same height as the operation panel 112 (see...). Figure 10 Regarding the vertical axis 58, the suction port 106 is lower than the inlet opening 228.

[0389] Due to the oblique arrangement of chamber 226, it is possible that the rear region 254 of chamber 226 (see...) Figure 12 The vertical axis 58 and the suction port 106 are at the same height.

[0390] In other respects, the geometry of suction head 216 is the same as that described above in conjunction with suction head 16.

[0391] In particular, the receiving portions 222 and 224 are geometrically symmetrical with respect to the central plane of the suction head 218. Accordingly, the operation panel 112 and the suction port 106 are located on this central plane.

[0392] Furthermore, the geometric arrangement of other components of the suction device 10 (such as the blower assembly 72 and the filter assembly 88) is as described above.

[0393] exist Figure 13 The fourth embodiment of the suction device according to the invention, shown and marked with 256, includes a device body 258. This device body 258 can be supported on the ground in a transferable manner via a transfer device 260.

[0394] The main body 258 of the device has a suction container 262. A suction port 264 is arranged on the suction container 262, and a suction hose or suction tube can be fixed to the suction port via a corresponding sleeve.

[0395] An intermediate ring 266 is detachably mounted on the suction container 262. The intermediate ring 266 is detachably fixed to the suction container 262, in particular, by means of a locking flap device 268.

[0396] A suction head 270 is detachably mounted on the intermediate ring 266. The intermediate ring 266 is detachably connected to the suction head 270 via a locking flap device 272.

[0397] An operation panel 274 is mounted on the suction head 270. A blower device is arranged on the suction head 270, and a filter cleaning device is also arranged if necessary.

[0398] The intermediate ring 266 between the suction head 270 and the suction container 262 has a receiving device 276 for the battery device. In particular, the receiving device 276 has a plurality of receiving portions 278, wherein each receiving portion can accommodate a battery cell 280.

[0399] In the illustrated embodiment, the housing 276 has three housing portions. Therefore, it can accommodate three battery cells 280.

[0400] The main body 25 of the equipment has a first lateral side 282, and a second lateral side 284 opposite to the first lateral side. Between the first lateral side 282 and the second lateral side 284 there is a first longitudinal side 286 and an opposite second longitudinal side 288.

[0401] The control panel 274 is arranged on the first lateral side 282. Similarly, the suction port 284 is arranged on the first lateral side 282.

[0402] The receiving device 276 has an inlet opening 290, which is arranged on the first lateral side 282.

[0403] The main body 258 has a geometrically intermediate plane 292, which is oriented laterally to the first lateral side 282 and laterally to the second lateral side 284, and is centrally located between the first longitudinal side 286 and the second longitudinal side 288.

[0404] The control panel 274 and the suction port 284 are located on the middle plane 292.

[0405] The receiving device 276 is also located on the intermediate plane 292 and is symmetrical with respect to the intermediate plane 292, and in particular mirror symmetrical.

[0406] The centrally located receiving section 278 is situated on the intermediate plane 292.

[0407] The intermediate ring 266 is essentially a support for the battery assembly. This support is arranged in a manner that does not obstruct filter cleaning performed by the filter cleaning device.

[0408] The main body 258 has a vertical axis 294. The receiving device 276 is located about the vertical axis 294 between the suction port 264 and the operation panel 274. Therefore, the battery device placed in the receiving device 276 is positioned about the vertical axis 294 between the suction port 264 and the operation panel 274.

[0409] When the filter cleaning device is installed, it is arranged on the suction head 270, and thus when the filter cleaning device is positioned on the receiving device 276, it is located above the receiving device 276 or the battery cell about the vertical axis 294.

[0410] The center of mass of the main body 158 is located on the intermediate plane 292.

[0411] The center of mass of the battery cell is also located on the intermediate plane 292 when the battery cell is placed into the housing 276.

[0412] In particular, if a blower unit and a filter cleaning unit are present, they are located on the intermediate plane 292.

[0413] The battery unit 280 can be guided into its respective receiving portion 278 in the guiding direction 296. The battery unit 280 can then be removed from the receiving device 276 in the opposite direction.

[0414] Importing or removing is performed here from the first horizontal side 282.

[0415] The control panel 274 can be operated from the first horizontal section 282. The suction port 264 can be reached from the first horizontal section 282.

[0416] The charging status display, which is mounted on the respective battery cell 280 or the housing 278, can be read from the first lateral side 282.

[0417] The outer edges of the housing 276 or the battery cell 280, which are adjacent to the first longitudinal side 286 and the second transverse side 288 respectively, and from which a line leads to the center of the filter cleaning device, form an equilateral triangle, wherein the center is located on the intermediate plane 292.

[0418] The projection of triangle 298 onto the standing plane of suction device 256 results in the projection of the center of mass onto the standing plane being located within the triangle.

[0419] exist Figure 14 and Figure 15 The fifth embodiment of the suction device according to the invention, shown in cross-sectional view and marked with 302, is in principle identical in construction to the suction device 10. The same reference numerals are used for the same elements.

[0420] The difference between suction device 302 and suction device 10 lies in the construction of the filter cleaning device; a filter cleaning device 304 is provided, which has multiple external air valves, and in particular two external air valves, namely the first external air valve 306a and the second external air valve 306b.

[0421] Multiple external air valves 306 are provided to enable cleaning on a large filter surface; external air loading can be achieved on a larger surface through multiple external air valves 306.

[0422] The suction device 302 has an intermediate plane corresponding to the intermediate plane 116 in the suction device 10.

[0423] The center of mass of the filter cleaning device 304 is located on the intermediate plane 116. The external air valves 306a and 306b are arranged symmetrically with respect to the intermediate plane 116, so that the center of mass of the filter cleaning device 304 is exactly located on the intermediate plane 116 (see [reference]). Figure 13 and Figure 14 ).

[0424] In other respects, the suction device 302 is constructed the same as the suction device 10 and operates in the same manner.

[0425] exist Figure 16In the sixth embodiment of the suction device shown in the perspective diagram and marked with 320, the device body is arranged in the same manner as the suction device 10, with the center of mass of the device body located at least approximately on the corresponding geometric mid-plane, the filter cleaning device being arranged on the device body such that the center of mass of the filter cleaning device is located at least approximately on the mid-plane, and the battery device being arranged on the device body such that the center of mass of the battery device is located on the mid-plane.

[0426] In the suction device 320, battery units 322 and 324 are positioned in their respective receiving portions 326 and 328. The receiving portions 326 and 328 are configured such that battery units 322 or 324 can be guided into or removed from their respective receiving portions 326 or 328 via the upper side 330 of the suction head 332. The inlet direction 334 and the outlet direction 336 are opposite directions and at least substantially parallel to the vertical axis 338 of the suction device 320.

[0427] In suction device 320, as in suction device 302, weight-related components are arranged symmetrically with corresponding intermediate planes. This greatly reduces the risk of tipping over.

[0428] The difference between suction device 320 and suction device 10 is that battery units 322 and 324 cannot be pushed in or taken out via the corresponding first lateral side 340, but are introduced or taken out via the upper side 330 transverse to the first lateral side 340.

[0429] The upper side 330 is horizontal and especially perpendicular to the vertical axis 338.

[0430] List of reference numerals

[0431] 10. Suction Device (First Embodiment)

[0432] 12. Main body of the equipment

[0433] 14 Suction container

[0434] 16 suction heads

[0435] 18 Bottom

[0436] 20. Vessel wall

[0437] 22 Interior Space

[0438] 24 mobile devices

[0439] 26 Frames

[0440] 28. Accommodation Department

[0441] 29 Floors

[0442] 30-wheel device

[0443] 32 Right Wheel

[0444] 34 Revolver

[0445] 36 wheel axles

[0446] 38 First longitudinal side

[0447] 40 Second longitudinal side

[0448] 42 Roller assembly

[0449] 44 First steering roller

[0450] 46 Second steering roller

[0451] 48 First transverse side

[0452] 50 Second transverse side

[0453] 52. Reception Department

[0454] 54. Locking flap device

[0455] 56 Standing Plane

[0456] 58 Vertical axis

[0457] 60 Suction Head Body

[0458] 62 First suction head lateral side

[0459] 64 Second suction head lateral side

[0460] 66 First suction head longitudinal side

[0461] 68 Second suction head longitudinal side

[0462] 70 storage space

[0463] 72 Blower unit

[0464] 74 Impeller

[0465] 76 Rotation axis

[0466] 78 Blower motor

[0467] 80 axis

[0468] 82 Filter device

[0469] 84 Filter holder

[0470] 86 Accommodation space

[0471] 88 Filter Cleaning Device

[0472] 90 External air valve device

[0473] 92 External air valve

[0474] 94 Clean Side

[0475] 96 Control device

[0476] 98. Flow direction

[0477] 100 visceral side

[0478] 102 upper side

[0479] 104 covers

[0480] 106 Suction Interface

[0481] 108 pipe fittings

[0482] 110 (police emergency number)

[0483] 112 Control Panel

[0484] 114 Knob

[0485] 116 Intermediate Plane

[0486] 118 Center of mass

[0487] 120 Battery Unit

[0488] 122 First battery cell

[0489] 124 Second battery unit

[0490] 126 First Accommodation Section

[0491] 128 Second Reception Section

[0492] 130 Electrical contact device

[0493] 132 Middleware

[0494] 134 Lintel

[0495] 136 degrees

[0496] 138 guide rail

[0497] 140 recess

[0498] 142 Bottom

[0499] 144 Vessel Wall

[0500] 146. Vessel wall

[0501] 148 components

[0502] 150 Import Direction

[0503] 152 Export Direction

[0504] 154 Central Axis

[0505] 156 Acute Angle

[0506] 158 Import Direction

[0507] 160 Charging Status Indicator

[0508] 164 Lower side

[0509] 166 upper side

[0510] 168 Center

[0511] 170 triangle

[0512] 172 Center

[0513] 174 Triangles

[0514] 176 Triangles

[0515] 178 Handle

[0516] 180 lintel

[0517] 182 Line Outline

[0518] 184 Center

[0519] 186 Part One

[0520] 188 Part Two

[0521] 190 Suction Device (Second Embodiment)

[0522] 192 Suction Head

[0523] 194 First Accommodation Department

[0524] 196 Second Accommodation Department

[0525] 198 chambers

[0526] 200 Container Wall

[0527] 202 Interior Space

[0528] 204 Opening

[0529] 206 covers

[0530] 208 Initial position

[0531] 210 Spring device

[0532] 212 upper side

[0533] 214 Oscillation Axis

[0534] 216 Suction Device (Third Embodiment)

[0535] 218 Suction Head

[0536] 220 Middleware

[0537] 222 First Accommodation Section

[0538] 224 Second Reception Section

[0539] 226 chambers

[0540] 228 Inlet opening

[0541] 230 lids

[0542] 232 Initial Position

[0543] 234 Interior Space

[0544] 236 upper side

[0545] 238 Longitudinal axis

[0546] 240 Longitudinal wall

[0547] 242 Acute Angle

[0548] 244 Acute Angle

[0549] 246 Plane

[0550] 248 Import Direction

[0551] 250 opposite direction

[0552] 252 Movement direction

[0553] 254 Rear Area

[0554] 255 Reservation area or free space

[0555] 256 Suction Device (Fourth Embodiment)

[0556] 258 Equipment Main Body

[0557] 260 mobile device

[0558] 262 Suction container

[0559] 264 Suction Interface

[0560] 266 Intermediate Ring

[0561] 268 Locking Flip-Type Device

[0562] 270 suction head

[0563] 272 Locking Flip-Type Device

[0564] 274 Control Panel

[0565] 276 Receiving device

[0566] 278 Receiving device

[0567] 280 battery cells

[0568] 282 First transverse side

[0569] 284 Second transverse side

[0570] 286 First longitudinal side

[0571] 288 Second longitudinal side

[0572] 290 Inlet opening

[0573] 292 Intermediate Plane

[0574] 294 Vertical axis

[0575] 296 Import Direction

[0576] 298 triangles

[0577] 302 Suction Device (Fifth Embodiment)

[0578] 304 filter cleaning device

[0579] 306 External Air Valve

[0580] 306a First External Air Valve

[0581] 306b Second External Air Valve

[0582] 320 Suction Device (Sixth Embodiment)

[0583] 322 battery cell

[0584] 324 battery cells

[0585] 326 Reception Department

[0586] 328 Accommodation Section

[0587] 330 upper side

[0588] 332 suction head

[0589] 334 Import Direction

[0590] 336 Export Direction

[0591] 338 Vertical axis

[0592] 340 First transverse side

[0593] 360a Free Space

[0594] 360b Free Space

[0595] 362 Partial Areas

[0596] 364 housing

[0597] 366 First longitudinal side

[0598] 368 Second longitudinal side

[0599] 370 front

[0600] 372 Grip device

Claims

1. A suction device, said suction device comprising a main body (12; 258), a blower device (72) for generating a suction flow, a filter device (82), a filter cleaning device (88; 304) for said filter device (82), and a battery device (120) for providing electrical energy, wherein, The device body (12; 258) is provided with a geometrically intermediate plane (116; 292), which is oriented perpendicular to the standing plane (56) of the device body (12; 258). The device body (12; 258) is characterized by having its center of mass (118) located on the intermediate plane (116; 292), the filter cleaning device (88; 304) being arranged on the device body (12; 158) such that its center of mass is located on the intermediate plane (116; 292), and the battery device (120) being arranged on the device body (12; 258) such that its center of mass is located on the intermediate plane (116; 292). The battery device (120) includes a first battery unit (122) and a second battery unit (124), wherein the battery units (122, 124) are batteries or counterweights equivalent in weight to batteries. When the first battery cell (122) and the second battery cell (124) are held on the device body (12; 258), the outline of the lines having a line from the center of the first battery cell (122) to the center of the second battery cell (124), a line from the center of the first battery cell (122) to the center (184) of the filter cleaning device (88), and a line from the center (184) of the filter cleaning device (88) to the center of the second battery cell (124) forms a triangle (182). The projection of the centroid (118) of the main body of the device (12; 258) onto the standing plane (56) lies within the projection of the triangle (182; 298) onto the standing plane (56).

2. The suction device according to claim 1, characterized in that... It has at least one of the following characteristics: - The battery device (120) is arranged on the intermediate plane (116; 292) and / or symmetrically arranged on the device body (12; 258) relative to the intermediate plane (116; 292); - The battery device (120) has a plurality of battery cells (122, 124; 280) arranged on the intermediate plane (116; 292) and / or symmetrically arranged with respect to the intermediate plane (116; 292); - The filter cleaning device (88; 304) is arranged on the intermediate plane (116; 292) and / or symmetrically configured relative to the intermediate plane (116; 292); - The filter cleaning device (304) has a plurality of external air valves (306a, 306b) arranged on the intermediate plane (116) and / or symmetrically arranged on the device body relative to the intermediate plane (116).

3. The suction device according to claim 1 or 2, characterized in that... It has at least one of the following characteristics: - The main body of the device (12; 258) has a first longitudinal side (38; 286) and a second longitudinal side (40; 288) opposite to the first longitudinal side (38; 256), and the intermediate plane (116; 292) is centrally located between the first longitudinal side (38; 296) and the second longitudinal side (40; 288); - The main body of the device (12; 258) has a first lateral side (48; 282) and an opposite second lateral side (50; 284), and the intermediate plane (116; 292) is transverse to the first lateral side (48; 282) and / or transverse to the second lateral side (50; 284). - At least one of the following features is arranged on the first lateral side (48; 282) of the device body (12; 258) oriented transversely to the intermediate plane (116; 292): - Suction port (106; 264); - Control panel (112; 274); - The wheel axle (36) of the wheel assembly (30) arranged on the main body of the equipment (12; 258) is oriented transversely to the intermediate plane (116; 292); - The rotation axis (76) of the impeller (74) of the blower device (72) and / or the rotation axis of the motor shaft (80) of the blower motor (78) of the blower device (72) are parallel to or located on the intermediate plane (116; 292); - A handle (178) arranged on the main body of the equipment (12; 258) is located on the intermediate plane (116; 292); - The blower assembly (72) is located on the intermediate plane (116; 292); - The suction port (106; 264) is arranged on the intermediate plane (116; 292) on the main body of the device (12; 258); - The operation panel (112; 274) is arranged on the intermediate plane (116; 292) on the main body of the equipment (12; 258).

4. The suction device according to claim 1, characterized in that... It has at least one of the following characteristics: - The first battery cell (122) and the second battery cell (124) are arranged on the device body (12) at a distance from the intermediate plane (116); - The first battery cell (122) and the second battery cell (124) have a spacing direction that is transverse to the intermediate plane (116); - The first battery cell (122; 280) and the second battery cell (124; 280) are arranged on the device body (12; 258) in a mirror-symmetric or point-symmetric manner with respect to the intermediate plane (116; 292); - The first battery unit (122) and the second battery unit (124) are disposed on the main body of the device (12) at a distance from the filter cleaning device (88); - The first battery unit (122) and / or the second battery unit (124) are detachably fixed or can be fixed to the device body (12; 258).

5. The suction device according to claim 1, characterized in that, A vertex of a triangle is located on the intermediate plane (116).

6. The suction device according to claim 1, characterized in that, The blower assembly (72) is located at least partially within the triangle (182; 298).

7. The suction device according to any one of claims 1-2, characterized in that, The device body (12; 258) has a receiving portion (86) for the filter cleaning device (88) and / or the filter device (82), the receiving portion being closed by a movable cover (104), and the battery device (120) being arranged on the device body (12; 258) spaced apart from the cover (104).

8. The suction device according to any one of claims 1-2, characterized in that, The filter cleaning device (82) has an air passage device, and the battery device (120) is spaced apart from the air passage device.

9. The suction device according to any one of claims 1-2, characterized in that, The device body (12; 258) has a first lateral side (48; 282) and a spaced-apart second lateral side (50; 284), wherein the intermediate plane (116; 292) is oriented laterally to the first lateral side (48; 282) and / or laterally to the second lateral side (50; 284), wherein the device body (12; 258) has a first portion (186) and a second portion (188), the first lateral side (48; 282) is formed on the first portion, and the second lateral side (50; 284) is formed on the second portion, having at least one of the following features: - The battery device (120) is arranged on the first part (186); - The filter cleaning device (88) and the filter device (82) are arranged on the second part (188); - The first lateral side (40; 282) is closer to the battery device (120) than the second lateral side (50; 284). - Compared to the first lateral side (48; 282), the second lateral side (50; 284) is closer to the filter cleaning device (88) and the filter device (82). - The first lateral side (48; 282) is closer to the blower device (72) than the second lateral side (50; 284), or the blower device is centrally located between the first lateral side (48; 282) and the second lateral side (50; 284); - A roller device (42) is arranged on the first part (186); - A wheel device (30) is arranged on the second part (188).

10. The suction device according to any one of claims 1-2, characterized in that, The main body of the device (12; 258) has a vertical axis (58; 294) that is perpendicular to the standing plane (56).

11. The suction device according to claim 10, characterized in that, The center of the battery device (120) and the center of the filter cleaning device (82) are located at the same height in the vertical axis (58) on the main body of the device (12).

12. The suction device according to claim 10, characterized in that, The center of the battery device (120) and the center of the filter cleaning device (82) are arranged on the main body of the device (258) with a height distance (294) relative to the vertical axis (294).

13. The suction device according to claim 12, characterized in that, The battery device (120) is positioned below the filter cleaning device (82) relative to the vertical axis (294) and the standing plane (56).

14. The suction device according to claim 12 or 13, characterized in that, The battery device (120) is positioned below the blower device (72) relative to the vertical axis (294) and the standing plane (56).

15. The suction device according to claim 13, characterized in that, The battery device (120) is positioned on the intermediate ring (266).

16. The suction device according to claim 10, characterized in that, The impeller (74) of the blower device (72) is positioned on the main body (12) of the equipment below the battery device (120) and / or the filter cleaning device (82) relative to the vertical axis (58) and the standing plane (56).

17. The suction device according to any one of claims 1-2, characterized in that, The main body of the device (12; 258) includes a suction container (14; 262) and a suction head (16; 192; 218; 270), wherein the suction head (16; 192; 218) is detachably connected to the suction container (14; 262).

18. The suction device according to claim 17, characterized in that, An intermediate ring (266) is disposed between the suction head (270) and the suction container (262), and the battery device (120) is arranged on the intermediate ring.

19. The suction device according to any one of claims 1-2, characterized in that... It has at least one of the following characteristics: - The filter cleaning device (88; 304) is an automatic filter cleaning device; - The filter cleaning device (88; 304) is configured as an external air valve cleaning device (90), wherein the filter device (82) can be loaded with external air via at least one external air valve (92; 306a, 306b); - The filter cleaning device (88; 304) has at least one of the following operating modes: automatic cleaning when the suction device is turned off, automatic cleaning when the suction device is turned on, and cleaning on demand.

20. The suction device according to any one of claims 1-2, characterized in that... It is constructed as a stand-alone suction device.

21. The suction device according to claim 1 or 2, characterized in that, The wheel axis (36) of the wheel assembly (30) arranged on the main body (12; 258) is oriented perpendicular to the intermediate plane (116; 292).

22. The suction device according to claim 1, characterized in that, The battery is a rechargeable battery.

23. The suction device according to claim 1, characterized in that, The first battery cell (122) and the second battery cell (124) have a spacing direction perpendicular to the intermediate plane (116).

24. The suction device according to claim 1, characterized in that, The triangle is an equilateral triangle.

25. The suction device according to any one of claims 1-2, characterized in that, The device body (12; 258) has a first lateral side (48; 282) and a spaced-apart second lateral side (50; 284), wherein the intermediate plane (116; 292) is oriented laterally to the first lateral side (48; 282) and / or laterally to the second lateral side (50; 284), wherein the device body (12; 258) has a first portion (186) and a second portion (188), the first lateral side (48; 282) being formed on the first portion and the second lateral side (50; 284) being formed on the second portion. A roller device (42) is arranged on the first part (186) and has at least one of the following features: - The roller device (42) includes at least one steering roller (44, 46); - The roller device (42) is arranged below the main body of the equipment (12; 258).

26. The suction device according to any one of claims 1-2, characterized in that, The device body (12; 258) has a first lateral side (48; 282) and a spaced-apart second lateral side (50; 284), wherein the intermediate plane (116; 292) is oriented laterally to the first lateral side (48; 282) and / or laterally to the second lateral side (50; 284), wherein the device body (12; 258) has a first portion (186) and a second portion (188), the first lateral side (48; 282) being formed on the first portion and the second lateral side (50; 284) being formed on the second portion. A wheel assembly (30) is arranged on the second part (188), wherein the wheels (32, 34) of the wheel assembly (30) are laterally positioned relative to the main body of the equipment (12; 258).

27. The suction device according to claim 15, characterized in that, The intermediate ring is arranged between the suction head (270) and the suction container (262).

28. The suction device according to any one of claims 1-2, characterized in that, The main body of the device (12; 258) includes a suction container (14; 262) and a suction head (16; 192; 218; 270), wherein the suction head (16; 192; 218) is detachably connected to the suction container (14; 262) and has at least one of the following features: - The battery device (120) is arranged on the suction head (16; 192; 218); - The blower assembly (72) is arranged on the suction head (16; 192; 218; 270); - The filter cleaning device (88) is positioned on the suction head (16; 192; 218; 270); - The filter device (82) is held on the suction head (16; 192; 218; 270); - The control panel (112; 274) is located on the suction head (16; 192; 218; 270); - The suction port (106; 264) is disposed on the suction head (16; 192; 218) or the suction container (262).

29. The suction device according to claim 17, characterized in that, An intermediate ring (266) is disposed between the suction head (270) and the aspirate container (262), and the battery device (120) is arranged on the intermediate ring, having at least one of the following features: - The intermediate ring (266) is removable relative to the aspirate container (262); - The intermediate ring (266) is removable relative to the suction head (270).

Images