EP4173499B1 - Valve system for a hookah - Google Patents

Description

The invention relates to a valve system for a hookah and a hookah according to the preamble of the independent claims.

Water pipes with valve systems, for example, are from the prior art DE 20 2019 106795 U1 , DE 20 2019 001094 U1 and US 4,133,318 A known. DE 20 2019 106795 U1 describes a valve system of a water pipe with a first closure element, which can be attached to the water container of the water pipe, and a second closure element, which has a continuous opening for a smoke pipe and at least two smoke hose connections for at least one smoke hose and at least one continuous first recess with a one-sided locking valve locking device with a first valve body and a first valve seat for the air-permeable connection between the water container and the smoke hose connection, characterized by a valve unlocking device with a second recess for the air-permeable connection to the water container, wherein in the second recess a second valve body is arranged in the direction of gravity above a second valve seat and the second recess can be connected in an air-permeable manner via a third recess to the first recess and via a fourth recess to the surroundings of the water pipe, the second valve body making the connection to the water container impermeable to air when the negative pressure conditions in the third recess are prevailing in relation to the ambient pressure of the water pipe closes and the second valve body opens the connection to the water container in an air-permeable manner when the overpressure conditions prevail in the third recess in relation to the ambient pressure of the water pipe, thus enabling air to be blown into the water container.

Water pipes, also called shisha or hookah, usually consist of a water container, the so-called bowl, and a closure head that is attached to the water container. A smoke tube is attached to the closure head, at the upper end of which a tobacco head is arranged, on which tobacco is burned or vaporized together with the glowing coal. The smoke pipe extends through the closure head into the water tank and opens into the water tank with its lower end below a water level. Furthermore, a connection option for at least one smoke hose is provided on the closure head, which opens via a corresponding recess into the air space provided in the water container between the head and the liquid level. When a user sucks in through the smoke hose, a negative pressure is created in an air space provided in the water container Tobacco smoke is sucked in through the smoke pipe and is cleaned, cooled and humidified as it passes through the liquid.

It is important that the closure completely seals the water container, otherwise secondary air will be sucked in and the water pipe will no longer "pull" properly.

Known closures are, for example, designed in the manner of a screw or plug-in closure and have connection openings for several smoke hoses.

In a known manner, the connection opening for the smoke hose opens directly or indirectly into the water container via a recess. In order to prevent unwanted secondary air from flowing through the unused connection openings, particularly when there are several connection openings for one smoke hose each is pulled, a valve arrangement in the manner of a check valve can be provided in the recess or recesses. The valve arrangement can have a valve body subjected to gravity and/or spring force, which can be brought into sealing contact with a valve seat which can be detachably fastened in or on the recess on the front side. By loosening the valve seat, the valve arrangement or at least the valve body can be removed, inserted or replaced as required.

In order to be able to blow fresh air into the air space of the water container using one of the smoke hoses, particularly while using the water pipe, for example to lower the smoke temperature, the associated check valve of the smoke connection is usually removed or bypassed by a valve device. The blown-in air escapes through the check valves in the connections of the other smoke hoses. Exhaust openings with check valves are also provided, which allow air to pass from the bowl to the ambient air and block the suction of ambient air into the bowl. The opening pressure of the check valves of the exhaust openings is lower than the necessary opening pressure of the check valves of the smoke connections. The blow-out air exits the blow-out openings on the closure head into the ambient air.

In order to allow the exhaust air to flow out at other points in order to influence the outflow behavior, the smoke pipe can be surrounded by a cladding pipe. An open annular space is formed between the cladding tube and the smoke tube. The exhaust openings open into the annular space. Recesses are made at one or more points in the cladding tube. The blow-out air exits these recesses into the ambient air. The cladding tube can be designed in several parts from pipe sections and cladding tube outlets. Sheath tubes without recesses and sheath tube vents with recesses can be installed in combination. The type and position of the outflow to the ambient air can be specified due to the different arrangement of the cladding tubes and cladding tube vents. The same and different cladding tube vents can be used. Sheathing tubes and sheathing tube vents can be combined in different positions and numbers. The cladding tubes and cladding tube vents are positively connected to the smoke pipe and the closure head, preferably screwed in the manner of a tie rod. The disassembly and assembly of the components is not possible easily and safely during operation, as the hot components (tobacco head, smoke tube, cladding tube, cladding tube vent) would have to be dismantled and assembled.

Based on this prior art, it is an object of the present invention to provide a valve system for a water pipe that is easy to operate and that enables different outflows of blow-out air to the ambient air. The valve system should preferably be adjusted by manual intervention and should preferably also be possible while the water pipe is in operation, without components having to be dismantled or assembled. The valve system can be combined with the cladding tube. A valve system consisting of one or more outflow valves can be combined with the cladding pipe and the smoke pipe. Each outflow valve has several switching positions. If several outflow valves are used, they can be adjusted independently of one another. The number of adjustable variations results from multiplying the number of switching positions of the individual outflow valves.

This task is solved by a valve system according to the teaching of claim 1.

Advantageous embodiments of the invention are the subject of the subclaims.

One embodiment of the invention relates to a valve system with which the outflow of air from the annular space between the smoke pipe and the cladding pipe can be controlled. The valve system is located above the closure head, preferably at the lower and upper ends of the smoke pipe. The valve system has several switching positions and can preferably be operated manually, without the need to disassemble and assemble components.

The valve system for a water pipe according to an embodiment of the present invention has at least one valve device with several switching positions that controls the type and direction of the blow-out air.

The outflow valves of the valve system are preferably arranged on the cladding tube above the closure head and preferably consist of a valve housing and a valve body. The recesses of the outflow valves open into the ambient air from the annular space between the smoke pipe and the cladding pipe. The outflow valves have several switching positions. The recesses in the outflow valves can be closed or opened. When the recesses are open, the direction of the blow-out air can be varied using several switching positions.

It is advantageous for the number of variants to design the outflow valves and cladding tube as individual components. These components can then be assembled in several configurations.

Although it is sufficient for the essence of the invention if one outflow valve is provided, in preferred embodiments it is advantageous to provide a plurality of outflow valves.

One embodiment of the invention comprises a valve system for a water pipe (99) with a closure head (98) which can be attached to a water container (05) of a water pipe (99). The closure head comprises an underside directed towards the water container when the closure head (98) is in the attached state and an upper side opposite the underside and a first recess (26) and a smoke hose connection (19) suitable for establishing a fluid-conducting connection between the water container by means of the first recess (26). (5) and the surrounding area of the water pipe and a second recess (31) with a blow-out valve (30) suitable for closing a fluid-conducting connection between the second recess (31) and the water container (5) when there is negative pressure in the water container (5). in the event of excess pressure in the water container (5), a fluid-conducting connection between the water container and the recess (31) is opened. The valve system also includes a lower smoke pipe (24) attached to the underside of the closure head (98) and an upper smoke pipe (23) attached to the top of the closure head (98) and one attached to the top of the closure head (98) and the upper one Valve housing (02) surrounding the smoke pipe (23) with an outer surface pointing away from the upper smoke pipe and a cladding pipe attached to the valve housing (02) and surrounding the upper smoke pipe (23). (10) and a valve body (12) arranged on the valve housing (02) and surrounding the valve housing (02) with an inner surface directed towards the outer surface of the valve housing (02) and a third recess (15), the valve housing (02 ) and the cladding tube (10) between the upper smoke pipe (23) and the valve housing (02) and the cladding tube (10) form an annular space (32) which is fluidly connected to the second recess (31) and the third recess (15 ) is suitable for establishing a fluid-conducting connection between the annular space (32) and the surroundings of the water pipe and wherein the valve body (12) is designed such that it can also be moved along an outer surface of the valve housing (02) during operation of the water pipe, that it can assume at least one closed position and at least one open position, the valve body (12) closing the third recess (15) towards the surroundings of the water pipe in the closed position and opening the third recess (15) towards the surroundings of the water pipe in the open position that in the event of excess pressure in the water container (5), a fluid-conducting connection can be formed between the water container (5) and the surroundings of the water pipe via the second recess (31) and the annular space (32) and the third recess (15).

In a further embodiment of the valve system, the valve body (12) is designed such that it can assume a first opening position or a second opening position or a third opening position, the valve body (12) in the first opening position opening the third recess (15) to the surroundings The water pipe opens in such a way that fluid escaping through the connection between the water container (5) and the surroundings of the water pipe can escape perpendicular to the recess (15) and perpendicular to the valve housing (02), and the valve body (12) has the third recess in the second opening position (15) opens towards the surroundings of the water pipe in such a way that fluid escaping through the connection between the water container (5) and the surroundings of the water pipe can escape downwards and the valve body (12) in the third opening position opens the third recess (15) to the surroundings The water pipe opens in such a way that fluid escaping through the connection between the water container (5) and the area surrounding the water pipe can escape upwards.

In a further embodiment of the valve system, the valve body (12) is movable in such a way that it can be displaced vertically along the outer surface of the valve housing (02).

In a further embodiment of the valve system, the valve body (12) is movable such that it can be rotated along the outer surface of the valve housing (02).

In a further embodiment of the valve system, the valve housing (02) has at least one circumferential groove on its outer surface and the valve body (12) on its inner surface, in which a sealing and locking element (14) is arranged.

In a further embodiment of the valve system, the sealing and locking element (14) is an O-ring.

In a further embodiment of the valve system, at least two valve housings (02) and two valve bodies (12) are arranged vertically one above the other and surrounding the upper smoke pipe.

A further embodiment comprises a water pipe (99) with a water container (05), a valve system according to one of claims 1 to 9 attached to the water container (05), a smoke hose attached to the smoke hose connection (19) of the closure head (98). (20), a tobacco head (17) attached to the upper smoke pipe (23) and a charcoal plate (18) arranged below the tobacco head (17).

The invention is explained in more detail below using drawings that only show exemplary embodiments.

Figur 1

in schematischer nicht maßstäblicher Darstellung den grundsätzlichen Aufbau einer Wasserpfeife

Figuren 2a und 2b

ein Ausführungsbeispiel eines Verschlusses mit Hüllrohr und Hüllrohrausströmer.

Figuren 3a bis 3e

ein Ausführungsbeispiel eines erfindungsgemäßen Ventil-systems mit einem Ausströmventil mit mehreren Schaltstel-lungen.

Figur 4

ein Ausführungsbeispiel eines erfindungsgemäßen Ventil-systems mit zwei Ausströmventilen mit mehreren Schalt-stellungen.

Figuren 5a und 5b

ein Ausführungsbeispiel eines erfindungsgemäßen Ventil-systems mit einem Ausströmventil mit mehreren Schaltstel-lungen.

Show it:

Figure 1

in a schematic, not to scale representation of the basic structure of a water pipe

Figures 2a and 2b

an embodiment of a closure with cladding tube and cladding tube vent.

Figures 3a to 3e

an embodiment of a valve system according to the invention with an outflow valve with several switching positions.

Figure 4

an embodiment of a valve system according to the invention with two outflow valves with several switching positions.

Figures 5a and 5b

an embodiment of a valve system according to the invention with an outflow valve with several switching positions.

That in the Figure 1 The example shown of a water pipe 99 according to the prior art initially has a water container 05 which is filled with water 03 in such a way that an air space 07 remains above the liquid level 04. The water container 05 is closed with a closure head 98. The closure head 98 is releasably and sealingly connected to the water container 05 by means of a sealing element 08. In further embodiments, the closure head 98 can be positively connected to the water container 05, for example screwed. The closure head 98 can be made in several parts. A smoke pipe 06 extends through the closure head 98 and opens into the water 03 with its lower end in the water container 05 below the liquid level 04. In the area of its upper end, the smoke pipe 06 is provided with a tobacco head 17 on which glowing coal and the tobacco to be vaporized are held. A smoke connection 19 and a smoke hose 20 are arranged on the closure head 98 in a smoke hose connection recess (first recess) 26, which extends through the closure head 98 into the air space 07. If a user now sucks on the smoke hose 20, he creates a negative pressure in the water container 05, more precisely in the air space 07, through which air enriched with the evaporated tobacco aromas flows through Smoke pipe 06 and the water 03 are sucked in and cooled, cleaned, calmed and moistened and supplied to the user through the smoke hose 20.

That in the Figures 2a and 2 B The illustrated embodiment of a closure system with a valve arrangement according to the prior art has a closure head 98, which is sealingly attached to a water container 05 by means of a sealing element 08.

The closure head 98 has a through opening 22. A two-part smoke pipe 23 and 24 is attached to this opening, the upper smoke pipe 23 being screwed into the upper opening and the lower smoke pipe 24 being screwed into the lower opening. A tobacco head 17 is attached to the upper end of the upper smoke pipe 23; the lower smoke pipe 24 opens into the liquid in the water container 05.

One or more smoke hose connection recesses 26 (first recesses), preferably at an angle of approximately 45° to the smoke pipe axis, are arranged in the closure head 98. The smoke hose connection recesses 26 open into the inner air space 07.

In the case of several smoke hose connection recesses 26, valve arrangements (not shown) can be provided in the smoke hose connection recesses 26.

One or more second recesses 31 are arranged in the closure head 98 for the air-permeable connection between the air space 07 and the outside of the closure head 98. A valve arrangement 30 in the form of a check valve is provided in every second recess 31.

A cladding tube 10 encloses the smoke pipe 23 in such a way that an air-permeable annular space 32 is formed between the smoke pipe 23 and the cladding pipe 10. The second recess 31 opens into the annular space 32. A third recess 15 creates an air-permeable connection between the annular space 32 and the ambient air. The third recess 15 can be arranged in the cladding tube 10 or a cladding tube vent 11.

If air is blown into the smoke hose connection recesses 26, the smoke exits the air space 07 via the valve arrangement 30, the second recess 31, the annular space 32 and the third recess 15 into the ambient air.

That in the Figure 3 The illustrated embodiment of a valve system according to the invention corresponds, except for the valve device 16, to the embodiment according to Figures 2a and 2 B .

A valve device 16 is arranged between the cladding tube 10 and the closure head 98, consisting of a valve housing 02 and a valve body 12. The valve housing 02 has one or more third recesses 15. The valve body 12 is arranged to be displaceable and / or rotatable relative to the valve housing 02. By changing the position of the valve body 12, several switching positions can be selected. The valve body 12 can have one or more locking sealing and locking elements 14, for example O-rings made of rubber. The valve body 12 can have one or more contours 13 for specifically directing the air flow. The valve body 12 may have one or more openings to regulate air flow. The openings can have different sizes, e.g. diameters, and shapes. The openings can preferably be holes, but for example an oval or angular or slot-like shape is also possible. For example, by rotating the valve body 12, different sizes or shapes can be selected by the user.

The valve housing 02 of the valve device 16 can be designed in one piece with the cladding tube 10 or as a separate component.

The Figures 3b to 3e show different switching positions of the valve device 16.

That in the Figure 4 The illustrated embodiment of a valve system according to the invention corresponds completely to the embodiment except for a second valve device 16 ' Figure 3 .

That in the Figures 5a and 5b The illustrated embodiment of a valve system according to the invention corresponds completely to the embodiment except for a rotatable valve body 12 ' Figure 3 .

Reference symbol list

02

Valve housing

03

Water

04

liquid level

05

Water container (bowl)

06

Smoke pipe, multi-part

07

airspace

08

Sealing element

09

Check valve arrangement

10

cladding tube

11

cladding tube vent

12 12'

Valve body

13

contour

14

Sealing and locking element

15

third recess

16 16'

Valve device

17

Tobacco head

18

Charcoal plate

19

Smoke hose connection

20

smoke hose

22

Opening for smoke pipe

23

Upper smoke pipe

24

Lower smoke pipe

26

first recess (noise hose connection recess)

30

Blow-out valve

31

second recess

32

Annular space

98

Bolt head

99

Hookah

Claims (10)

1. A valve system for a water pipe (99), comprising:

   a closure head (98) capable of being attached to a water container (5) of a water pipe (99), said closure head including:

   a bottom side facing the water container when the closure head (98) is attached, and

   a top side opposing the bottom side, and

   a first recess (26), and

   a smoke hose connection (19) being adapted to establish a fluid-conducting connection between the water container (5) and the surroundings of the water pipe by means of the first recess (26), and

   a second recess (31) having a blow-out valve (30) being adapted to close a fluid-conducting connection between the second recess (31) and the water container (5) when there is a negative pressure in the water container (5), and to open a fluid-conducting connection between the water container (5) and the recess (31) when there is excess pressure in the water container (5),

   a lower smoke pipe (24) attached to the bottom side of the closure head (98), and

   an upper smoke pipe (23) attached to the top side of the closure head (98), and

   a valve housing (02) attached to the top side of the closure head (98) and surrounding the upper smoke pipe (23), having an outer surface facing away from the upper smoke pipe, and

   a cladding tube (10) attached to the valve housing (02) and surrounding the upper smoke pipe (23), and

   a valve body (12) arranged on the valve housing (02) and surrounding the valve housing (02), having an inner surface directed towards the outer surface of the valve housing (02) and a third recess (15),

   wherein the valve housing (02) and the cladding tube (10) form an annular space (32) between the upper smoke tube (23) and the valve housing (02) and the cladding tube (10), said annular space (32) being connected to the second recess (31) in a fluid-conducting manner, and

   wherein the third recess (15) is adapted to establish a fluid-conducting connection between the annular space (32) and the surroundings of the water pipe, and

   wherein the valve body (12) is designed such that it is capable of being moved along an outer surface of the valve housing (02) even during operation of the water pipe in such a way for it to be able to assume at least one closed position and at least one open position, said valve body (12), when in the closed position, closing the third recess (15) towards the surroundings of the water pipe and, when in the open position, opening the third recess (15) towards the surroundings of the water pipe in such a way that, in the event of excess pressure in the water container (5), a fluid-conducting connection may be formed between the water container (5) and the surroundings of the water pipe, via the second recess (31) and the annular space (32 ) and the third recess (15).
2. The valve system for a water pipe (99) according to claim 1, wherein the valve body (12) is designed in a manner for it to be able to assume either one of a first opening position, a second opening position, or a third opening position,

   wherein the valve body (12), when in the first opening position, opens the third recess (15) towards the surroundings of the water pipe in a manner for fluid escaping through the connection between the water container (5) and the surroundings of the water pipe to be able to escape perpendicular to the recess (15) and perpendicular to the valve housing (02), and

   wherein the valve body (12), when in the second opening position, opens the third recess (15) towards the surroundings of the water pipe in a manner for fluid escaping through the connection between the water container (5) and the surroundings of the water pipe to be able to escape downwards, and

   wherein the valve body (12), when in the third opening position, opens the third recess (15) towards the surroundings of the water pipe in a manner for fluid escaping through the connection between the water container (5) and the surroundings of the water pipe to escape upwards.
3. The valve system for a water pipe (99) according to any one of claims 1 or 2, wherein the valve body (12) is capable of being moved such that it is vertically displaceable along the outer surface of the valve housing (02).
4. The valve system for a water pipe (99) according to any one of claims 1 to 3, wherein the valve body (12) is capable of being moved to be rotatable along the outer surface of the valve housing (02).
5. The valve system for a water pipe (99) according to claim 4, wherein the valve body (12) has at least two openings of different sizes to regulate air flow.
6. The valve system for a water pipe (99) according to claim 5, wherein the openings have at least one of a round, an oval, a slot-like or a square shape.
7. The valve system for a water pipe (99) according to claim 3, wherein the valve housing (02) on the outer surface thereof and the valve body (12) on the inner surface thereof each have at least one circumferential groove in which a sealing and locking element (14) is arranged.
8. The valve system for a water pipe (99) according to claim 7, wherein the sealing and locking element (14) is an O-ring.
9. The valve system for a water pipe (99) according to any one of claims 1 to 8, wherein at least two valve housings (02) and two valve bodies (12) are arranged vertically one on top of the other while surrounding the upper smoke pipe.
10. The water pipe (99) including a water container (05), a valve system according to any one of claims 1 to 9 which is attached to the water container (05), a smoke hose (20) attached to the smoke hose connection (19) of the closure head (98), a tobacco head (17) attached to the upper smoke pipe (23) and a charcoal plate (18) arranged below the tobacco head (17).

Images