Cleaning device hose and cleaning device

Abstract

The utility model relates to a cleaning equipment hose and cleaning equipment. The utility model relates to a cleaning device hose, in particular to a cleaning device hose in the form of a suction and / or spray hose for a cleaning device comprising a suction device and / or a cleaning agent discharge device. The utility model relates to a cleaning device hose having at least one hose with a first hose end and a second hose end, at least one of the two hose ends being connected to a coupling element, the coupling element comprising a joint with an external thread and the joint being screwed into one of the two hose ends.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cleaning device hose, especially a cleaning device hose in the form of a suction and / or spray hose for a cleaning device comprising a suction device and / or a cleaning agent discharge device, wherein the cleaning device hose has at least one hose with a first hose end and a second hose end, wherein at least one of the two hose ends is connected to a coupling element.

[0002] The utility model further relates to a cleaning device comprising a suction device for generating a suction flow and / or a cleaning agent discharge device for discharging a cleaning agent, wherein the cleaning device comprises a cleaning device hose, wherein the cleaning device comprises a suction flow inlet and / or a cleaning agent outlet, the suction flow inlet being connected or connectable in fluid-acting connection to a suction channel defined by the cleaning device hose, and the cleaning agent outlet being connected or connectable in fluid-acting connection to a spray channel of the cleaning device hose.

[0003] Furthermore, a method for manufacturing a cleaning device hose is described, in which method at least one hose with a first hose end and a second hose end and at least one coupling element for connecting to one of the two hose ends are provided. BACKGROUND

[0004] Cleaning device hoses are used in particular in cleaning devices in the form of suction devices, spray devices, such as high- or low-pressure cleaning devices, or also in spray-suction devices. Spray-suction devices are configured for applying a cleaning agent, such as water, to a surface to be cleaned on the one hand and for sucking up the resulting dirt bath flow on the other hand. The discharge of the cleaning agent and the suction of the dirt bath flow can take place simultaneously, but also successively.

[0005] The problem arises in particular in the manufacture of cleaning device hoses. It is known to connect a coupling element in the form of a sleeve to a hose end of a hose. The known sleeve has an internal thread. The hose end to be connected to the coupling element is introduced in particular by screwing into the sleeve. This installation is only possible in practice if a lubricant is used to introduce the hose end into the sleeve. Furthermore, the known connection technology is not permanently stable. If the connection of the hose end and the sleeve is subjected to tensile loading, the hose end can be pulled out of the sleeve. Therefore, a material-locked connection between the sleeve and the hose end is additionally established. It is easily understandable that the combination of the lubricant when screwing the hose into the sleeve and the use of an adhesive, for example, for material-locked connection of the sleeve and the hose end is critical, since the lubricant can hinder, i.e. reduce or completely eliminate, the adhesive effect of the adhesive. SUMMARY

[0006] It is therefore the task of the present utility model to improve a cleaning appliance hose and a cleaning appliance and a method for producing a cleaning appliance hose, such that in particular a simple and stable connection between at least one hose and a coupling element can be achieved.

[0007] This task is solved according to the utility model in a cleaning appliance hose of the type mentioned at the outset, in that the coupling element comprises a fitting with an external thread and the fitting is screwed into one of the two hose ends.

[0008] The provision of a fitting with an external thread instead of a sleeve with an internal thread has advantages in particular when connecting the hose ends and the coupling element. The installation is greatly simplified, since the hose end is slightly compressed and thus slightly expanded when the sleeve is screwed onto the fitting, whereby the screwing-in force required for the sleeve is reduced. In contrast, when the hose end is screwed into a sleeve with an internal thread, the screwing-in force is increased, since the outer diameter of the hose increases when compressed. Furthermore, the proposed design also has the advantage that when attempting to unscrew the hose end from the fitting of the coupling element, the hose is slightly elongated and the diameter of the hose is reduced here, which leads to an increase in the clamping force between the hose end and the fitting when attempting to unscrew. Conversely, the holding force is reduced when the hose end is unscrewed from a sleeve provided with an internal thread, since the hose end is also elongated here, which leads to a reduction in the diameter. With the proposed design, lubricants can be dispensed with when installing the cleaning appliance hose, i.e. when connecting the hose ends and the fitting. Since the holding or clamping effect is intensified when attempting to unscrew the hose end from the fitting of the coupling element, an additional materially bonded connection between the hose end and the coupling element is likewise not necessarily required. The fitting according to the application is a sleeve-shaped coupling head, which in particular has a cylindrical or conically tapering outer contour towards the free end of the fitting. The conically tapering external thread of the fitting facilitates its introduction and screwing into the hose end of the at least one hose. The at least one hose is preferably made of plastic, in particular flexible and deformable plastic. Furthermore, a coupling element can in particular be screwed into both hose ends. If two coupling elements are provided, they can in particular be identical. However, they can also be different, in order to form a positive fit in the coupling position with a special coupling piece at the cleaning appliance or with a special coupling piece at the handpiece, on the one hand.

[0009] The fitting of the coupling element is screwed into both hose ends. This in particular makes it possible to connect the cleaning appliance hose to the cleaning appliance on the one hand and to the handpiece for guiding the cleaning appliance hose on the other hand. When the respective coupling element is permanently and non-removably connected to the cleaning appliance or the handpiece or is designed as such, both hose ends can also be permanently connected to the handpiece or the cleaning appliance.

[0010] The manufacture of cleaning equipment hoses can be simplified in particular by ensuring that at least one hose is constructed without internal threads in at least one of the two hose ends. If at least one hose is constructed to be flexible and deformable, the external threads of the fitting can cause slight deformation of the hose in the region of the hose end, thus forming or constructing a corresponding internal thread to some extent at this hose end by means of the external threads of the fitting. The inner surface of at least one hose will not be damaged or scratched in this way.

[0011] When at least one hose is constructed without any internal threads, cleaning equipment hoses can be constructed in a simple and cost-effective manner. In other words, the cleaning equipment hose can be constructed perfectly uniformly from one end of the hose to the other. This, in particular, makes it possible to construct at least one hose as a continuous product and to supply it for manufacturing cleaning equipment hoses.

[0012] Advantageously, the inner diameter of the hose in the region of the first or second hose end is equivalent to or substantially equivalent to the outer diameter of the fitting. The inner diameter of the hose is particularly not larger than the outer diameter of the fitting. For particularly secure and durable connections, it is advantageous that the inner diameter of the hose is slightly smaller than the outer diameter of the fitting. The outer diameter of the fitting here specifically refers to the outer diameter of the sleeve-shaped coupling head defined by the fitting, without the external threads arranged or constructed on this coupling head.

[0013] Advantageously, the connecting element is configured to be detachably connected to the cleaning equipment, or the connecting element is included in the cleaning equipment. The connecting element can particularly be arranged or constructed on the cleaning equipment. This design particularly allows the cleaning equipment hose to be temporarily or permanently arranged on or connected to the cleaning equipment. Therefore, depending on the design of the cleaning equipment and the correspondingly constructed cleaning equipment hose, a stream of dirt can be delivered to the cleaning equipment and / or cleaning agent can be applied from the cleaning equipment to the surface to be cleaned via the cleaning equipment hose.

[0014] The construction of cleaning equipment hoses can be particularly simple and cost-effective when the fitting is connected to at least one hose in a non-material locking manner. The fitting can, in particular, be connected to at least one hose without adhesive. As already explained, this avoids unwanted interactions even when lubricants are used. Furthermore, no adhesive is required.

[0015] For a secure connection between at least one hose end and the connecting element, it is advantageous that the external thread includes at least one turn, particularly two turns. The external thread may further include, particularly, at least three or four turns.

[0016] For a reliable connection that will not damage at least one hose when connected to a connecting element, it is advantageous that the external thread is configured as a square or round thread. The width of the thread flank of the external thread can be constant or continuously increasing from the free end of the fitting. The gradual increase in the width of the thread flank facilitates the fitting being screwed into the hose end of at least one hose.

[0017] To avoid damage to at least one hose from the external thread, it is advantageous that the external thread be constructed without sharp edges. In particular, the external thread can be constructed with rounded thread flanks.

[0018] To simplify the manufacture of cleaning equipment hoses, it is advantageous that the hoses are constructed such that the diameter, particularly the inner diameter, of at least one hose slightly increases when the connector is screwed into one of the two hose ends and slightly decreases when the connector is unscrewed. Therefore, as already explained, the screwing force required when screwing in the connector is significantly reduced compared to screwing the hose into a threaded sleeve, thus simplifying the connection between the hose end and the connector. Furthermore, removing the hose end from the connector becomes difficult because at least one hose is slightly smaller in diameter, resulting in greater clamping and retaining forces between the hose end and the connector when attempting to unscrew the hose end from the connector. Therefore, in practice, it is virtually impossible to unscrew at least one hose from the connector, even without additional adhesion between the connector and the hose end.

[0019] In order to use the cleaning equipment hose as a suction hose, it is advantageous that at least one hose is under stable negative pressure, particularly up to about 0.5 bar.

[0020] To enable cleaning equipment hoses to also be used for applying cleaning agents, it is advantageous to construct at least one hose as a low-pressure hose, particularly for pressures up to approximately 20 bar. Low-pressure hoses can therefore be used, in particular, in conjunction with low-pressure spraying equipment.

[0021] To achieve shape stability in cleaning equipment hoses, it is advantageous that the hoses include at least one hose reinforcement element for reinforcing at least one hose. The at least one hose reinforcement element is specifically used to maintain the free cross-section of at least one hose so that the hose does not collapse, which is possible in principle, especially when the cleaning equipment hose is constructed as a suction hose. To achieve shape stability, multiple, particularly a large number of annular closed hose reinforcement elements can be used, for example.

[0022] Advantageously, at least one hose reinforcing element is configured in the form of a spiral or helix, or in the form of a closed loop. Whether spiral, helix, or closed loop, it can be easily installed or formed on the hose, for example, on the outside of the hose. At least one hose reinforcing element can be, for example, locked to at least one hose material, or particularly, integrally constructed with the hose, for example, by extrusion molding.

[0023] At least one hose reinforcement element is preferably arranged or constructed on the outer side of at least one hose. This has the particular advantage that the inner wall of at least one hose can be constructed to be smooth, especially visibly smooth. Furthermore, at least one hose reinforcement element also allows the user to safely operate the cleaning equipment hose, as the hose reinforcement element thus forms a handle area that, in practice, prevents the cleaning equipment hose from unintentionally slipping from the user's hand.

[0024] When at least one hose reinforcement element is integrally constructed with at least one hose, particularly as a single unit, the construction of cleaning equipment hoses can be simple and cost-effective. Therefore, the hose reinforcement element can be constructed together with at least one hose in a single process.

[0025] Advantageously, at least one hose reinforcement element is made of plastic, particularly hard plastic, or metal. Such a hose reinforcement element is particularly suitable for achieving shape stability of at least one hose.

[0026] Cleaning hoses, especially at least one hose, are advantageously flexible, particularly elastically deformable. Such cleaning equipment hoses can be used for a variety of cleaning purposes and allow users to easily operate and deform them as needed.

[0027] In order to clean the cleaning equipment hoses particularly well and, in particular, to prevent the cleaning equipment hoses from becoming clogged as much as possible, it is advantageous that at least one hose has a smooth inner wall that is visible to the naked eye.

[0028] Cleaning equipment hoses are advantageously configured as either suction hoses defining a suction channel or spray hoses defining a spray channel. Such cleaning equipment hoses are particularly optimized for applications involving suction or application of cleaning agents to surfaces to be cleaned.

[0029] Furthermore, it may be advantageous for the cleaning equipment hose to comprise two independent, fluidly separated hoses, specifically a suction hose defining a suction channel and a spray hose defining a spray channel. This type of cleaning equipment hose can be used, in particular, in conjunction with a spray-suction device. Thus, one of the two hoses serves as the suction hose, and the other as the spray hose. Therefore, the cleaning agent never comes into direct contact with the stream of dirt picked up from the surface before being applied to it. The suction hose can, in particular, be arranged to surround the spray hose. The spray hose then extends inside the suction hose. Alternatively, it is conceivable that the spray hose is arranged externally on the suction hose, for example, detachably connected to the suction hose using a curved clamp or clip.

[0030] The task mentioned at the beginning of this article is also solved according to this invention in the type of cleaning equipment described at the beginning of this article as follows: the cleaning equipment hose is constructed in one of the preferred embodiments of the cleaning equipment hose described above.

[0031] Extending the design of the cleaning equipment in the suggested manner, particularly using the cleaning equipment hoses described above in different preferred embodiments, offers advantages also explained above. It is irrelevant whether the cleaning equipment hose is permanently and, more precisely, cannot be detached from the cleaning equipment via a connecting element. The particular feature lies in the connection of the threaded fitting of the connecting element to one of the two hose ends of at least one hose of the cleaning equipment hose.

[0032] Cleaning equipment is advantageously constructed in the form of a suction device, a spraying device, or a spray-suction device. Such cleaning equipment specifically extracts streams of dirt, such as a suction device, or applies cleaning agents, such as a spraying device, or combines both functions, such as a spray-suction device.

[0033] Advantageously, the cleaning equipment includes a waste collection container for containing a stream of waste drawn in by a suction device through a suction channel in the cleaning equipment hose and / or a cleaning agent container for containing cleaning agent, which can be discharged through a cleaning agent outlet into a spray channel in the cleaning equipment hose via a cleaning agent discharge device. Depending on the design of the cleaning equipment, it may include a waste collection container and / or a cleaning agent container. Therefore, the cleaning equipment can be configured as a suction device, a spraying device, or a spray-suction device.

[0034] The cleaning equipment is advantageously constructed to operate independently of the power grid using at least one rechargeable battery. This makes the cleaning equipment particularly suitable for use in locations where a power grid is unavailable.

[0035] According to another preferred embodiment of the present invention, the cleaning device can be configured to operate on an electrical grid and includes a power cord for connection to the grid. This cleaning device can be constructed to have higher cleaning power. Battery operation independent of the power grid typically limits the power consumption of the cleaning device.

[0036] Furthermore, it is suggested that, in the type of method described at the beginning of this document, at least one connecting element including a connector with external threads is provided and the connecting element is screwed into one of the two hose ends to connect at least one hose to at least one connecting element.

[0037] The method for manufacturing cleaning equipment hoses, as suggested, requires neither a high level of manual skill from the installer nor special tools. When the connector is screwed into the end of at least one hose, the hose end is slightly compressed, thus reducing the screwing force. Therefore, the installation of cleaning equipment hoses can be completed quickly, easily, and without tools.

[0038] The connector of the connecting element is preferably screwed into one of the two hose ends without any auxiliary measures, especially without lubricant. This eliminates the need for lubricant. Furthermore, the manufacturing of the cleaning equipment hose can be carried out completely cleanly, as there is no need to remove excess lubricant at the installation site or within the cleaning equipment hose itself.

[0039] Cleaning equipment hoses can be manufactured particularly easily when the connector is screwed into one of the two hose ends in the threaded direction. Attached Figure Description

[0040] The following description of preferred embodiments of the present invention is provided for more detailed explanation in conjunction with the accompanying drawings. In the drawings:

[0041] Figure 1 A schematic perspective general view of one embodiment of a cleaning device having a cleaning device hose is shown;

[0042] Figure 2 It shows the press Figure 1 A schematic view of the arrangement in the direction of arrow A;

[0043] Figure 3 It shows along Figure 2 Sectional view of line 3-3 in the middle;

[0044] Figure 4 It shows Figure 3 An enlarged schematic view of the layout;

[0045] Figure 5 It shows the relationship with Figure 5A similar view of another embodiment with connecting elements;

[0046] Figure 6 A schematic, partially sectional view of the cleaning equipment hose is shown in the transition area to the handheld component;

[0047] Figure 7 A schematic, partially sectional perspective view of the coupling element when connected to the hose end of the hose is shown;

[0048] Figure 8 A schematic, partially sectional view of the cleaning device hose is shown before it is connected to the handheld device;

[0049] Figure 9 A schematic cross-sectional view of a cleaning equipment hose with two coherent connecting elements is shown;

[0050] Figure 10 A schematic partial cross-sectional view of a cleaning equipment hose permanently connected to the cleaning equipment is shown;

[0051] Figure 11 A schematic, partially sectional view of a cleaning equipment hose permanently connected to a handheld device is shown; and

[0052] Figure 12 A schematic, partially sectional view of the cleaning equipment hose when connected to the cleaning equipment is shown. Detailed Implementation

[0053] The first embodiment of the cleaning device 10 is schematically shown in Figures 1 to 4 As shown in the diagram. The cleaning equipment includes a suction device 12 for generating a suction flow and in Figure 3 The cleaning agent dispensing device 14 is shown schematically in the middle.

[0054] The cleaning equipment 10 is configured as a spray extraction device 16.

[0055] The cleaning equipment 10 includes a waste container 18 for containing a stream of inhaled waste.

[0056] In addition, the cleaning device 10 includes a cleaning agent container 20 for containing cleaning agent 22, and the cleaning agent can be discharged through the cleaning agent outlet 24 using the cleaning agent discharge device 14. The cleaning agent container 20 is fluidly connected to the cleaning agent discharge device 14, which is configured as a pump 26. The pump 26 is in turn fluidly connected to the cleaning agent outlet 24.

[0057] The cleaning equipment 10 also includes a cleaning equipment hose 28.

[0058] The cleaning device 10 also includes a suction inlet 30, which is fluidly connected to a separation device 32. The separation device 32 separates the liquid and solid components of the suctioned waste bath from the gaseous components of the same waste bath. The solid and liquid components of the waste bath remain in the waste container 18. The gaseous components flow through the waste container 18, are drawn in by the suction device 12, and are discharged through respective openings (not shown in detail) of the cleaning device 10 to the surrounding environment 36 of the same cleaning device.

[0059] The cleaning equipment hose 28 defines a suction channel 38, which is fluid-acting and may be connected to a suction inlet 30.

[0060] In addition, the cleaning hose 28 of the cleaning device 10, which is in the form of a spray pump 16, also includes a spray channel 40, which is connected to or can be fluidly connected to the cleaning agent outlet 24.

[0061] The waste container 18 contains a waste bath stream 34, which consists of the solid and liquid components of the same waste bath stream, as illustrated, and is drawn in by the suction device 12 through the suction channel 38 of the cleaning equipment hose 28.

[0062] The cleaning agent discharge device 14 enables the cleaning agent 22 to be discharged through the cleaning agent outlet 24 into the spray channel 40 of the cleaning equipment hose 28.

[0063] Cleaning equipment 10 in Figures 1 to 4 The embodiment shown can operate in conjunction with the power grid and has a power cord for connection to the power grid. The power cord 42 is electrically connected to the control and / or regulation device 44 of the cleaning equipment 10 in a manner not shown in detail. The control and / or regulation device 44 is used to control and / or regulate the electrically driven suction device 12 and the electrically driven cleaning agent discharge device 14.

[0064] In an alternative embodiment, in Figure 10 The rechargeable battery 46 shown in the exemplary and schematic diagram is used to supply electrical power to the cleaning device 10. It goes without saying that the cleaning device 10 may optionally be equipped with both a power cord 42 and a rechargeable battery 46, so that the cleaning device 10 can be operated either wiredly via a power plug or via the rechargeable battery 46.

[0065] Cleaning equipment hose 28 Figures 1 to 4In this embodiment, it is configured as a suction and spray hose 48, because this cleaning device 10, as illustrated, is a spray-suction device 16 that includes both a suction device 12 and a cleaning agent discharge device 20 for discharging the cleaning agent 22. The cleaning agent 22 can be, in particular, pure water or water containing natural or chemical cleaning additives.

[0066] The cleaning equipment hose 28 includes two hoses 50 and 52, namely a suction hose 54 and a spray hose 56. The suction hose defines a suction channel 38, and the spray hose defines a spray channel 40. The two hoses 50 and 52 are independent of each other and fluid-dependent.

[0067] The suction hose 54 includes a first hose end 58 and a second hose end 60. The first hose end 58 is fluidly connected to or can be connected to the suction inlet 30 via a coupling member 62 including a connecting element 64. The second hose end 60 is connected to a handle 66 for guiding the cleaning equipment hose 28, with or without the optional accessory 68, over the surface to be cleaned.

[0068] The spray hose 56 also has a first hose end 70 and a second hose end 72, which are fluidly connected to the detergent outlet 24 on one side and to the handpiece 66 on the other.

[0069] The two hose ends 58 and 60 of the suction hose 54 are connected to the coupling element 64 on one side and to the coupling element 74 on the other side in a manner that will be described in more detail below.

[0070] The coupling element 64 is configured to detachably connect the cleaning equipment hose 28 to the cleaning equipment 10. The coupling element 74 is permanently connected to the handpiece 66 and enables rotation of the second hose end 60 about the longitudinal axis 76 defined by the coupling element 64 relative to the handpiece 66.

[0071] Connecting elements 64 and 74 each include a connector 78. The connectors 78 are constructed uniformly in both connecting elements 64 and 74. They may optionally be constructed differently, and they may differ in particular in length parallel to their respective longitudinal axes 76.

[0072] Furthermore, in the embodiment described, the two connectors 78 have the same diameter. Alternatively, it is also possible to provide connectors 78 with different outer diameters to temporarily or permanently connect the cleaning equipment hose 28 to the cleaning equipment 10 on one hand and to the handheld device 66 on the other.

[0073] The connector 78 is provided with an external thread 80. The two connectors 78 of the connecting elements 64 and 74 are screwed into the two hose ends 58 and 60. The external thread 80 is configured as a right-hand thread.

[0074] Therefore in Figures 1 to 4 In the embodiment, the connectors 78 of the two connecting elements 64 and 74 are screwed into the ends 58 and 60 of the two hoses, respectively.

[0075] The hose 50 is configured without internal threads in the regions of the two hose ends 58 and 60. Furthermore, the hose 50 is configured to be completely without internal threads.

[0076] Both hose 50 and hose 52 have smooth inner walls 82 or 84 that are visible to the naked eye.

[0077] The two hoses 50 and 52 of the cleaning equipment hose 28 are both flexible and deformable, especially elastic. They are made of plastic.

[0078] The materials used to construct hoses 50 and 52 are capable of flexible expansion. This particularly results in the external thread 80, as in... Figure 4 and 6 As schematically shown, this deforms the inner wall 82 of the hose 50, causing a corresponding internal thread 86 to be generated at the hose 50 by the deformation caused by the external thread 80. This is achieved by pressing the hose 50 tightly against the threaded side 88 of the external thread 80.

[0079] To achieve good retention or clamping effect of the hose 50 at the connector 78, the inner diameter of the hose 50 is constructed according to the outer diameter of the connector 78 in the regions of its two hose ends 58 and 60. The inner diameter is preferably slightly smaller than the outer diameter of the connector 78.

[0080] The connector 78 includes a sleeve section 90 that extends from an annular flange 92, which extends in a radial direction relative to the longitudinal axis 76, to a free end 94 of the connector. The annular flange 92 forms a stop for the hose ends 58 and 60.

[0081] To connect the connecting elements 64 and 74 to the hose 50, the connector 78 is screwed into the respective hose ends 58 and 60 in the thread direction of the external thread 80. This screwing action... Figure 7 It is schematically shown by arrow 96.

[0082] To facilitate screwing the connector 78 into the hose ends 58 and 60, the thread start end 98 of the external thread 80 is slightly offset relative to the free end 94, as shown in... Figure 7 The diagram illustrates that.

[0083] The connector 78 is connected to the hose 50 without any material locking. In particular, the connector 78 and the hose 50 are not bonded to each other, so the connector 78 and the hose 50 are connected without adhesive.

[0084] In an alternative implementation, the connector 78 and the hose 50 can of course be bonded together.

[0085] The external thread 80 comprises at least approximately 1.5 turns, i.e., 1.5 turns around the joint 78 with reference to the longitudinal axis 76. However, it may also consist of two, three, four, or more turns.

[0086] External threads 80 are constructed as square or round threads. External threads can also be constructed without sharp edges. External threads are particularly suitable for applications such as... Figures 1 to 4 The illustrated embodiment has a rounded threaded side 88.

[0087] The cleaning equipment hose 28 is also configured such that the diameter of the hose 50, particularly the inner diameter, is slightly enlarged when the connector 78 is screwed into the hose ends 58 and 60. This can be easily achieved by... Figure 7 Understood. If the installer, for example, holds the hose 50 with their left hand and screws the connecting element 64 and the connector 68 forward into the first hose end 58 with their right hand, the hose 50 is slightly compressed. This causes expansion and thus an increase in the inner diameter of the hose 50. Therefore, the hose 50 can be easily screwed onto the connector 78.

[0088] Conversely, when attempting to unscrew connector 78, the opposite occurs. The hose 50 extends slightly longitudinally, thus slightly reducing its diameter. This increases the clamping or retaining force of the hose end 58 on connector 78. Therefore, removing the hose 50 from connector 78 becomes difficult. As explained at the beginning of this document, this effect is exactly the opposite of that in cleaning equipment hoses known in the art, where the hose 50 is not screwed onto connector 78 as suggested, but rather screwed into a sleeve with internal threads.

[0089] The hose 50 is constructed to be stable under negative pressure. In particular, the hose can withstand negative pressures up to about 0.5 bar.

[0090] Hose 52, and therefore spray hose 56, is constructed as a low-pressure hose. It can withstand a maximum pressure of approximately 20 bar.

[0091] The cleaning equipment hose 28 includes one or more hose reinforcement elements 100 for reinforcing the hose 50. In the embodiment shown in the figure, the hose reinforcement element 100 is configured in the form of a spiral or helical structure 102, which is arranged or constructed on the outer side 104 of the hose 50 and spirally surrounds the hose.

[0092] exist Figures 1 to 4 In the illustrated embodiment, the hose reinforcement element 100 is integrally constructed with the hose 50, i.e., as a whole.

[0093] The hose reinforcement element 100 can alternatively be configured in the form of a closed loop. The hose 50 can then have a plurality of corresponding closed loops on its outer side 104.

[0094] The hose reinforcing element 100 is preferably made of plastic, particularly hard plastic. Alternatively, the hose reinforcing element may be made of metal. For example, metal wire can be used as a helical structure or a closed loop for reinforcing the hose 50.

[0095] exist Figures 1 to 4 In one embodiment, the connection device 64 is configured to be detachably connected to the cleaning device 10.

[0096] Figure 10 One embodiment is illustrated schematically, in which the connecting element 64 is connected to the cleaning device 10 in a non-detachable manner. In this embodiment, the hose end 58 is screwed onto the connector 78 of the connecting element 64, which is provided with external threads 80. Thus, in this embodiment, the connecting element 64 is included in, i.e., arranged or constructed on, the cleaning device 10.

[0097] Figure 5 An embodiment of the cleaning device 10 is shown, which is substantially corresponding in its structure to Figures 1 to 4 And the cleaning equipment 10 schematically shown in 6 and 7. Therefore, regardless of... Figure 5 The embodiments described below will be explained later. Figures 8 to 12 In the embodiments, both and as in Figures 1 to 4 In the embodiments, the same reference numerals are used to label elements or parts that are consistent or similar in function.

[0098] exist Figure 5 In this embodiment, although the connector 78 is also constructed in a sleeve shape, its outer surface tapers towards the free end 94. An external thread 80 is formed on the outer surface 104. The taper angle 108, with reference to the longitudinal axis 76, is in the range of approximately 0.5° to approximately 5°.

[0099] As explained and in Figure 5 The tapered connector 78 shown facilitates insertion into the hose end 58 of the hose 50.

[0100] Figure 8 The schematic diagram illustrates a coupling element 74 that can be detachably connected to the handheld component 66. The coupling element 74 is connected to... Figures 1 to 5In the embodiments, the connecting element 64 is constructed in a consistent manner. A restraining element, which is supported in a movable manner at the handpiece 66, is used for locking, and the restraining element is constructed corresponding to the annular groove 110 at the connecting section 112 of the connecting element 74. The connecting section 112 extends from the annular flange 92 to the free end 114, which points in the opposite direction to the free end 94 of the connector 78.

[0101] Figure 9 A cleaning equipment hose 28 is shown, in which connecting elements 64 and 74 are constructed identically. (Please click...) Figure 9 In one embodiment, the cleaning equipment hose 28 can be detachably connected to either the handheld device 66 (not shown) or the cleaning equipment 10 (not shown).

[0102] Figure 11 An embodiment of a cleaning equipment hose 28 is schematically shown, with its second end 60 connected to a coupling element 74. The coupling element 74 is permanently and non-removably connected to a handpiece 66.

[0103] Figure 12 Another embodiment of the cleaning equipment hose 28 is shown, which includes a coupling element 64 configured to be detachably connected to the cleaning equipment 10.

[0104] exist Figures 8 to 12 In the embodiments, hose 50 is schematically shown as suction hose 54. Of course, hose 52 can also be used as the label. Figures 8 to 12 These embodiments are more specifically labeled as spray hose 56.

[0105] As already stated, a special characteristic of the cleaning equipment hose is that at least one of its two hose ends 58 and 60 is screwed onto a connector 78 with external threads 80 via opposing screw-in motion sleeves, thereby connecting the hose 50 to the connecting element 64 or 74. Screwing is performed in the thread direction. No auxiliary measures are required for this. In particular, no lubricant is needed.

[0106] The illustrated connection between hose 50 and coupling elements 64 and 74 can be easily achieved with minimal force. Furthermore, the connection offers high pull-out protection, making it virtually impossible to remove hose 50 from the connector of coupling element 64 or 74 without damaging the hose. Hose 50 is securely and permanently held on the connector 78 equipped with external threads 80 solely by clamping force.

[0107] List of reference numerals

[0108] 10 Cleaning equipment

[0109] 12 Suction Device

[0110] 14. Detergent Discharge Device

[0111] 16. Spraying and extraction equipment

[0112] 18 Waste container

[0113] 20 Cleaning agent containers

[0114] 22 Cleaning agents

[0115] 24. Cleaning agent exports

[0116] 26 pumps

[0117] 28 Cleaning equipment hose

[0118] 30 suction flow inlet

[0119] 32 Separation device

[0120] 34. Waste Bath Flow

[0121] 36. Surrounding environment

[0122] 38 suction channels

[0123] 40 spray channels

[0124] 42 Power cord

[0125] 44 Control and / or regulating devices

[0126] 46 batteries

[0127] 48 Suction and spray hoses

[0128] 50 Hose

[0129] 52 Hose

[0130] 54 Suction Tube

[0131] 56 Spray hose

[0132] 58 First hose end

[0133] 60 Second hose end

[0134] 62 Coupler

[0135] 64 Connecting elements

[0136] 66 Handheld components

[0137] 68 accessories

[0138] 70 First hose end

[0139] 72 Second hose end

[0140] 74 Connecting elements

[0141] 76. Longitudinal axis

[0142] 78 connector

[0143] 80 external thread

[0144] 82 Inner Wall

[0145] 84 Inner Wall

[0146] 86 Internal Thread

[0147] 88 Threaded side

[0148] 90 sleeve section

[0149] 92 Circular Flange

[0150] 94 Free end

[0151] 96 arrows

[0152] 98 Thread start end

[0153] 100 Hose Reinforcement Element

[0154] 102 Helical Structure

[0155] 104 Outer side

[0156] 106 Outer Surface

[0157] 108 cone angle

[0158] 110 Annular groove

[0159] 112 Connecting Section

[0160] 114 Free end

Claims

1. A cleaning equipment hose (28), particularly a cleaning equipment hose in the form of a suction and / or spraying hose (48) for a cleaning equipment including a suction device (12) and / or a cleaning agent discharge device (20), wherein, The cleaning equipment hose (28) has at least one hose (50, 52) with a first hose end (58) and a second hose end (60), wherein at least one of the two hose ends (58, 60) is connected to a connecting element (64, 74), characterized in that the connecting element (64, 74) includes a connector (78) having an external thread (80) and the connector (78) is screwed into one of the two hose ends (58, 60).

2. The cleaning equipment hose according to claim 1, characterized in that, Both hose ends (58, 60) have connectors (78) for connecting elements (64, 74) screwed into them.

3. The cleaning equipment hose according to any one of the preceding claims, characterized in that, The at least one hose (50) is configured to be without internal threads in at least one region of the two hose ends (58, 60).

4. The cleaning equipment hose according to claim 3, characterized in that, The at least one hose (50) is configured to be completely without internal threads.

5. The cleaning equipment hose according to any one of the preceding claims, characterized in that, The inner diameter of the hose (50) is equivalent to or substantially equivalent to the outer diameter of the connector (78) in the region of the first or second hose end (58, 60), and in particular is not greater than the outer diameter of the connector (78).

6. The cleaning equipment hose according to any one of the preceding claims, characterized in that, The connecting element (64) is configured to be detachably connected to the cleaning device (10), or the connecting element is included in the cleaning device (10), particularly arranged or constructed on the cleaning device.

7. The cleaning equipment hose according to any one of the preceding claims, characterized in that, The connector (78) is connected to the at least one hose (50) in a material-locking manner, particularly without adhesive.

8. The cleaning equipment hose according to any one of the preceding claims, characterized in that, The external thread (80) includes at least one turn, particularly two turns, especially at least three or four turns.

9. The cleaning equipment hose according to any one of the preceding claims, characterized in that, The external thread (80) is configured as a square thread or a round thread.

10. The cleaning equipment hose according to any one of the preceding claims, characterized in that, The external thread (80) is configured to be edgeless, and in particular, is configured to have rounded thread flanks (88).

11. The cleaning equipment hose according to any one of the preceding claims, characterized in that, The cleaning equipment hose (28) is configured such that the diameter, particularly the inner diameter, of the at least one hose (50) slightly enlarges when the connector (78) is screwed into one of the two hose ends (58, 60) and slightly decreases when the connector (78) is screwed out.

12. The cleaning equipment hose according to any one of the preceding claims, characterized in that, The at least one hose (50) is under negative pressure, particularly up to about 0.5 bar.

13. The cleaning equipment hose according to any one of the preceding claims, characterized in that, The at least one hose (50) is configured as a low-pressure hose, specifically up to a pressure of approximately 20 bar.

14. The cleaning equipment hose according to any one of the preceding claims, characterized in that, The cleaning equipment hose (28) includes at least one hose reinforcement element (100) for reinforcing the at least one hose (50).

15. The cleaning equipment hose according to claim 14, characterized in that, The at least one hose reinforcement element (100) is configured in the form of a spiral or helical structure (102) or a closed loop.

16. The cleaning equipment hose according to claim 14 or 15, characterized in that, The at least one hose reinforcement element (100) is arranged or constructed on the outside (104) of the at least one hose (50).

17. The cleaning equipment hose according to any one of claims 14 to 16, characterized in that, The at least one hose reinforcement element (100) is integrally, in particular, constructed as a whole with the at least one hose (50).

18. The cleaning equipment hose according to any one of claims 14 to 17, characterized in that, The at least one hose reinforcement element (100) is made of plastic, particularly hard plastic or metal.

19. The cleaning equipment hose according to any one of the preceding claims, characterized in that, The cleaning equipment hose (28), and in particular the at least one hose (50, 52), is flexible and deformable, especially elastic.

20. The cleaning equipment hose according to any one of the preceding claims, characterized in that, The at least one hose (50, 52) has a smooth inner wall (82, 84) visible to the naked eye.

21. The cleaning equipment hose according to any one of the preceding claims, characterized in that, The cleaning equipment hose (28) is configured as a suction hose (54) defining a suction channel (38) or a spray hose (56) defining a spray channel (40).

22. The cleaning equipment hose according to any one of the preceding claims, characterized in that, The cleaning equipment hose (28) includes two independent, fluid-separated hoses (50, 52), specifically a suction hose (54) defining a suction channel (38) and a spray hose (56) defining a spray channel (40).

23. A cleaning device (10), said cleaning device comprising a suction device (12) for generating a suction flow and / or a cleaning agent discharge device (14) for discharging cleaning agent (22), wherein, The cleaning device (10) includes a cleaning device hose (28), wherein the cleaning device (10) includes a suction inlet (30) and / or a cleaning agent outlet (24), the suction inlet being fluidly connected to or capable of being fluidly connected to a suction channel (38) defined by the cleaning device hose (28), and the cleaning agent outlet being fluidly connected to or capable of being fluidly connected to a spray channel (40) of the cleaning device hose (28), characterized in that the cleaning device hose (28) is configured in the form of a cleaning device hose (28) according to any one of the preceding claims.

24. The cleaning equipment according to claim 23, characterized in that, The cleaning equipment (10) is configured as a suction device, a spraying device or a spray-suction device (16).

25. The cleaning equipment according to claim 23 or 24, characterized in that, The cleaning equipment (10) includes a dirt container (18) for containing a dirt bath (34) drawn in by a suction device (12) through a suction channel (38) of a suction device hose (28) and / or a cleaning agent container (20) for containing cleaning agent (22), the cleaning agent being discharged through a cleaning agent outlet (24) into a spray channel (40) of the cleaning device hose (28) via a cleaning agent discharge device (14).

26. The cleaning equipment according to any one of claims 23 to 25, characterized in that, The cleaning device (10) is configured to operate independently of the power grid using at least one rechargeable battery (46).

27. The cleaning equipment according to any one of claims 23 to 26, characterized in that, The cleaning equipment (10) can operate on the power grid and includes a power cord (42) for connection to the power grid.

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