Vacuum cleaner for cleaning a hookah

Abstract

Handheld vacuum cleaner (10) for cleaning a hookah, comprising a housing (20), a blower (30) arranged in the housing (20), a discharge opening (40) arranged on the pressure side of the blower (30), an intake opening arranged on the suction side of the blower (30), an air filter (50) arranged in or in front of the intake opening, a dust container (60) connected to the housing (20) which has an outlet communicating with the intake opening and facing the air filter (50) and an inlet (70) opposite the outlet, wherein the blower (30) is configured to generate an airflow through the inlet (70) towards the discharge opening (40), characterized in that the dust container (60) has a skirt (80) forming the inlet (70) with a skirt edge (85) lying in one plane, which, when in full contact with a hookah, together with the hookah, forms a seal. is set up to effect the entry (70),and has a grid (90) arranged within the dust container (60), spaced away from the skirt edge (85), which is designed to prevent the intake of coal with a predetermined diameter.

Description

[0001] The invention relates to a vacuum cleaner for cleaning a shisha.

[0002] A shisha is a traditional oriental water pipe, which—unlike a water pipe known as a bong—is smoked using a hose. The shisha essentially consists of a bowl sealed by a base. Attached to the base are a downstem extending downwards into the bowl and a smoke tube extending upwards towards the shisha head, as well as connections for the hoses used for smoking.

[0003] The hookah bowl is filled with tobacco and covered with aluminum foil or a heat management device (HMD, smokebox) or a chimney-style heat management device. Glowing charcoal is then placed on top of the foil or device. The glowing charcoal heats and vaporizes the tobacco, so it isn't actually smoked, as it doesn't burn. Special hookah tongs are usually used for filling the bowl with tobacco, heating, and positioning the charcoal. Additional components may include a charcoal tray located directly below the bowl for holding charcoal pieces, and a molasses catcher positioned in the downstem below the charcoal tray.

[0004] Shisha smoking has become popular worldwide and is now offered not only in specially equipped shisha bars and cafes, but also practiced in private homes. Generally, but especially in private homes, cleaning a shisha presents a challenge because the burning charcoal in the shisha bowl produces ash, which must be removed before the bowl can be prepared for another use.

[0005] Since conventional vacuum cleaners are unsuitable for picking up potentially hot coal dust and hot ash, the only remaining option is to use brushes and paintbrushes, disassemble the hookah, and clean it under running water to completely remove the ash. However, these methods are quite time-consuming and can pose a fire hazard if handled improperly.

[0006] Vacuum cleaners and vacuum cleaner nozzles, which may have sieve-like devices for trapping objects from the aspirated airflow, are known, among others, from DE 203 06 763 U1, DE 10 2012 100 046 A1, DE 201 10 263 U1, JP 2005 - 52 339 A, DE 10 2012 211 247 A1 and DE 10 2019 218 556 A1.

[0007] The object of the invention is therefore to create a device for cleaning a shisha of hot ash and coal dust.

[0008] This problem is solved according to the invention by the handheld vacuum cleaner with the features of claim 1. The dependent claims describe advantageous embodiments of the invention.

[0009] The basic idea behind the invention is to provide a handheld vacuum cleaner characterized by a compact design, ease of use, and robust materials that ensure even hot ash residue can be safely vacuumed. The handheld vacuum cleaner according to the invention is therefore particularly suitable for vacuuming ash cleanly, quickly, and safely without the risk of overheating or damage. Thanks to the integrated design described below, featuring a special filter system and heat-resistant components, the vacuum cleaner is especially suitable for indoor use where conventional vacuum cleaners would not be safe enough for this task.

[0010] Thanks to the design according to the invention, the handheld vacuum cleaner is able to remove ash without allowing coal residue or embers to enter the vacuum. For this purpose, a grid made of heat-resistant metal is provided, which, when in use, sits directly on the coal and prevents the coal from being sucked in, as the holes or mesh of the grid are small enough to allow only ash, but not coal, to pass through. Inside the device, a filter catches any larger pieces of embers that may have accidentally entered the dust container and prevents them from reaching the more sensitive components of the handheld vacuum cleaner according to the invention.

[0011] A specially designed funnel, also made of metal, ensures that the vacuumed ash collects inside and does not enter the filter. The central hole in the funnel allows the chimney of a hookah attachment to pass through, enabling the ash to be vacuumed directly from the hookah bowl without damaging the handheld vacuum.

[0012] Furthermore, the handheld vacuum cleaner is preferably equipped with a battery, in particular a rechargeable 7.2V battery, making it portable and cordless and allowing for flexible use, whether at home or in hookah cafes. A preferably powerful carbon brush motor ensures strong suction power, while the filter, preferably a HEPA filter, captures even the finest ash particles and ensures that no harmful particles are released into the room air.

[0013] Due to the preferred use of heat-resistant materials and the inventive design, the handheld vacuum cleaner can safely remove hot ash from the hookah bowl without the risk of overheating or damage. The handheld vacuum cleaner removes ash thoroughly and quickly without sucking up charcoal residue or embers, thus enabling clean preparation for the next hookah session. When equipped with a rechargeable battery, the vacuum cleaner can be used anywhere, whether at home or in a hookah café, without needing to be plugged into a power outlet. The preferred use of robust materials such as metal and heat-resistant plastic ensures a long service life for the device. Furthermore, the preferred modular design of the handheld vacuum cleaner allows the main components to be easily disassembled and cleaned.The integrated HEPA filter effectively filters even the smallest ash particles, improving indoor air quality and minimizing health risks from inhaling ash particles. After vacuuming hot ash, the device is placed on the base provided as part of the system, which allows for safe and controlled cooling without heat causing any problems. Finally, a nozzle is provided that attaches directly to the dust container, and the nozzle is designed so that the handheld vacuum cleaner can also be used as a conventional tabletop vacuum cleaner.

[0014] According to the invention, a handheld vacuum cleaner for cleaning a hookah is proposed, comprising a housing, a blower arranged in the housing, a discharge opening arranged on the pressure side of the blower, an intake opening arranged on the suction side of the blower, an air filter arranged in or in front of the intake opening, a dust container connected to the housing which has an outlet communicating with the intake opening and facing the air filter, and an inlet opposite the outlet, wherein the blower is configured to generate an airflow through the inlet towards the discharge opening, wherein the dust container has a skirt forming the inlet with a skirt edge lying in one plane, which, when in full contact with a hookah, together with the hookah, is configured to close the inlet, and a grid arranged inside the dust container at a distance from the skirt edge.which is designed to prevent the intake of charcoal with a predetermined diameter, wherein the grid has an opening designed to receive a shisha head adapter or a shisha chimney.

[0015] The apron provided according to the invention thus enables, when placed fully on a surface, in particular the MHD attachment or chimney attachment of the shisha head, a closed space to be created in which the hot ash can be safely absorbed without the ash being distributed in the surrounding area.

[0016] The air filter provided according to the invention can be a combination of different filter elements. Preferably, the air filter consists of an outer metallic basket for filtering coarse particles and an inner HEPA filter designed for filtering smaller particles of a predetermined size. In particular, the filter is designed such that the air is drawn radially through the filter by means of the blower.

[0017] The grid is preferably designed as a perforated sheet or a metal mesh, wherein the hole diameter of the perforated sheet or the mesh size of the metal mesh has a predetermined size that prevents the intake of charcoal pieces of a predetermined diameter into the dust container. The grid ensures that only charcoal dust, ash, and smaller particles, but not charcoal pieces that can still be used for operating the shisha, are drawn in.

[0018] In a first preferred embodiment, a funnel extending from the grid towards the outlet of the dust container is provided. The funnel thus forms a tapered passage towards the intake opening of the blower, with the outer wall of the funnel preventing particles sucked into the dust container from escaping.

[0019] Preferably, the air filter and funnel are arranged concentrically to each other, with the air filter being designed as a truncated cone, its base facing the housing and its top facing the tapered opening of the funnel. If the air is drawn radially through the filter and the diameter of the top face is larger than the diameter of the tapered opening of the funnel, aspirated particles, such as coal dust and ash, are deposited on the filter and collect between the funnel wall and the inner wall of the dust container, so that only a very small proportion of the aspirated particles can fall out of the dust container through the funnel opening.

[0020] According to the invention, the grid is designed such that it has an opening for receiving a hookah head adapter or a hookah chimney. When the head adapter or chimney is in use, the opening is closed, so that the drawn-in airflow is forced through the grid and cannot pass through the opening unhindered.

[0021] Accordingly, it is preferably provided that the funnel has an opening designed to accommodate the chimney of the shisha.

[0022] Overall, the materials used for the handheld vacuum cleaner according to the invention are intended to be heat-resistant, with the housing preferably being made of a heat-resistant plastic and the dust container preferably of metal. It is particularly preferred that the housing be thermally insulated from the blower.

[0023] The housing and dust container of the handheld vacuum cleaner are preferably cylindrical. In particular, the housing has a section opposite the dust container that serves as a handle and on which the operating elements of the handheld vacuum cleaner are located. This design allows for safe handling of the handheld vacuum cleaner without having to touch the heat-generating dust container, while also protecting the electronics from heat.

[0024] The housing and dust container of the handheld vacuum cleaner preferably form a screw connection, so that the dust container is detachably connected to the housing. The dust container can therefore be easily unscrewed from the housing and emptied. At the same time, it is particularly preferred that maintenance work on the handheld vacuum cleaner, especially filter changes, can be carried out by loosening the screw connection.

[0025] Furthermore, a first system is proposed, comprising a handheld vacuum cleaner designed according to the invention and a stand connectable to the apron for storing the handheld vacuum cleaner. In particular, the stand has a base, on the underside of which feet are preferably arranged, separating the base from a support surface on which the stand can be placed. The base is preferably made of metal and has a slightly larger inner diameter compared to the outer diameter of the dust container of the handheld vacuum cleaner, so that the dust container attached to the handheld vacuum cleaner can be inserted into the base of the stand. This is advantageous because the dust container of the handheld vacuum cleaner contains hot ash after use and can therefore be quite hot.Storing the handheld vacuum cleaner in the stand therefore allows for safe storage of the handheld vacuum cleaner without any risk of fire due to the hot dust container of the handheld vacuum cleaner.

[0026] Finally, a further system is proposed, consisting of the handheld vacuum cleaner according to the invention and a nozzle connectable to the apron. The nozzle can, for example, be designed as a brush nozzle and have a plurality of bristles at the nozzle inlet. In any case, the nozzle has a section designed as an adapter opposite the nozzle inlet, the outer diameter of which is preferably slightly smaller than the inner diameter of the apron of the handheld vacuum cleaner, so that the adapter section of the nozzle and the apron of the handheld vacuum cleaner form a plug connection. Alternatively, the apron of the handheld vacuum cleaner and the nozzle can form a cooperating bayonet fitting or other advantageous connecting means that enable a secure and airtight connection between the handheld vacuum cleaner and the nozzle.

[0027] Using the system proposed, consisting of a handheld vacuum cleaner and nozzle, the handheld vacuum cleaner can be converted into a conventionally usable table vacuum cleaner if required.

[0028] The invention will be explained in more detail below with reference to a particularly preferred embodiment of a handheld vacuum cleaner illustrated in the accompanying drawings. The drawings show: Fig. 1 a particularly preferred embodiment according to the invention in a side view (A) and in a frontal view (B) showing the underside; and Fig. 2 the particularly preferred embodiment in a cut view (A), a stand usable in conjunction with the hand vacuum cleaner according to the invention in a cut view (B) and a nozzle usable in conjunction with the hand vacuum cleaner according to the invention in a side view (C).

[0029] Fig. Figure 1 shows a particularly preferred embodiment according to the invention in a side view (A) and in a frontal view (B) showing the underside.

[0030] In particular, it shows Fig. Figure 1A shows a side view of a handheld vacuum cleaner 10, which is particularly advantageous for cleaning a shisha. The handheld vacuum cleaner 10 has a housing 20 that is ergonomically shaped for ease of handling, the housing 20 being detachably connected axially to a dust container 60. The handheld vacuum cleaner 10 preferably has a cylindrical shape overall, with the inlet on the underside of the handheld vacuum cleaner 10 and operating elements for the handheld vacuum cleaner 10 on the top. On the surface of the housing 20, adjacent to a section of the housing 20 designed as a handle, are exhaust openings 40 that radially discharge the air drawn in through the inlet 70 located on the underside.

[0031] From a top view of the in Fig. The underside of the handheld vacuum cleaner 10 shown in Figure 1B shows the grid 80, which is arranged within the dust container 60 at a distance from its free edge designed as a skirt 80, and which is made of a heat-resistant material, in particular metal, and has a mesh size that prevents the suction of coal with a predetermined diameter.

[0032] In the Fig. Sectional view shown in 2A through the in Fig. As can be seen in the embodiment shown in Figure 1, the housing 20 and the dust container 60 are detachably connected to each other by means of a screw connection. The blower 30 is arranged in the housing 20, with the pressure side of the blower 30 being the Fig. The blower 30 is provided with exhaust openings 40 as shown in Figure 1A. On the suction side of the blower 30, an intake opening is provided that communicates with the outlet of the dust container. The air filter 50 is located in front of this intake opening, so that the air drawn in by the blower 30 must pass through the air filter 50. Particles transported by the air drawn in through the inlet 70 of the dust container 60 are separated at the air filter 50 and collected in the dust container 60. In the example shown, the air filter 50 is designed as a two-stage filter, consisting of an outer metallic basket for filtering coarse particles and an inner HEPA filter for filtering smaller particles of a predetermined size.

[0033] The dust container 60 forms a skirt 80 that constitutes the inlet 70 and has a skirt rim 85 lying in a plane. When this rim is in full contact with the shisha, particularly with the chimney attachment or the attachment designed as a heat management device (smokebox), it closes the inlet 70 together with the shisha. Within the dust container 60, spaced from the skirt rim 85, is the Fig. 1B shows a grid 80 arranged which is designed to prevent the intake of coal with a predetermined diameter.

[0034] From the grille 80 extends a funnel 100, tapering towards the outlet of the dust container 60, i.e., towards the air filter 50 or towards the intake opening of the housing 20, which closes off the interior of the dust container 60 towards the inlet 70. The grille 90 and the funnel 100 each have a central opening through which the chimney of a shisha's chimney attachment can pass.

[0035] For ease of handling, the housing 20 is preferably made of a heat-resistant plastic, and is thermally insulated from the blower 30. The dust container 60, which is screwed to the housing 20, is preferably made of metal.

[0036] Fig. Figure 2 also shows further advantageously designed accessories for use with the handheld vacuum cleaner according to the invention. For example, it shows Fig. Figure 2B shows a cutaway view of a stand 200 that can be used in conjunction with the handheld vacuum cleaner 10 according to the invention and that can be used to store the handheld vacuum cleaner 10. The stand 200 has a base 210, on the underside of which feet 220 are arranged, which space the base 210 apart from a support surface on which the stand 200 can be placed. The base 210—like the dust container 60 of the handheld vacuum cleaner 10—is made of metal and has a slightly larger inner diameter compared to the outer diameter of the dust container 60 of the handheld vacuum cleaner 10, so that the handheld vacuum cleaner 10 with its dust container 60 can be inserted into the base 210 of the stand 200. This is useful because the dust container 60 of the handheld vacuum cleaner 10 contains hot ash after use and can therefore be very hot.Storing the handheld vacuum cleaner 10 in the stand 200 thus enables safe storage of the handheld vacuum cleaner 10 without any risk of fire due to the hot dust container 60 of the handheld vacuum cleaner 10.

[0037] Finally, it shows Fig. Figure 2C shows a side view of a nozzle 300, designed as a brush nozzle, which can be used in conjunction with the handheld vacuum cleaner 10 according to the invention. The nozzle 300 has a section 310 designed as an adapter opposite the nozzle inlet, the outer diameter of which is slightly smaller than the inner diameter of the skirt 80 of the handheld vacuum cleaner 10, so that the section 310 of the nozzle 300 and the skirt 80 of the handheld vacuum cleaner 10 form a plug connection. If required, the handheld vacuum cleaner 10 can therefore be converted into a conventionally usable tabletop vacuum cleaner.

Claims

[1] Handheld vacuum cleaner (10) for cleaning a shisha, with - a case (20), - a blower (30) arranged in the housing (20), - a discharge opening (40) arranged on the pressure side of the blower (30), - an intake opening arranged on the suction side of the blower (30), - an air filter (50) located in or in front of the intake opening - a dust container (60) connected to the housing (20), which has an outlet communicating with the intake opening and facing the air filter (50) and an inlet (70) opposite the outlet, wherein the blower (30) is arranged to generate an airflow through the inlet (70) towards the discharge opening (40), characterized by , that - the dust container (60) a skirt (80) forming the inlet (70) with a skirt edge (85) lying in one plane, which, when fully in contact with a shisha, together with the shisha, is arranged to close the inlet (70), and - a grid (90) arranged within the dust container (60), spaced apart from the apron edge (85), which is designed to prevent the intake of coal with a predetermined diameter, wherein the grid (90) has an opening designed to receive a head adapter of the shisha or a chimney of the shisha. [2] Handheld vacuum cleaner (10) according to claim 1, characterized by a funnel (100) extending from the grid (80) towards the outlet of the dust container (60). [3] Handheld vacuum cleaner (10) according to any one of the preceding claims, characterized by, that the funnel (100) has an opening designed to accommodate the chimney of the shisha. [4] Handheld vacuum cleaner (10) according to any one of the preceding claims, characterized by , that the housing (20) is made of a heat-resistant plastic. [5] Handheld vacuum cleaner (10) according to any one of the preceding claims, characterized by , that the dust container (60) is made of metal. [6] Handheld vacuum cleaner (10) according to any of the preceding claims, characterized by , that the housing (20) and the dust container (60) are cylindrical in shape. [7] Handheld vacuum cleaner (10) according to any of the preceding claims, characterized by , that the housing (20) and the dust container (60) form a screw connection with each other. [8] System comprising a handheld vacuum cleaner (10) according to one of the preceding claims and a stand (200) connectable to the apron (80) for storing the handheld vacuum cleaner (10). [9] System consisting of a handheld vacuum cleaner (10) according to one of claims 1 to 7 and a nozzle (300) that can be connected to the apron (80).

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