DE202022102444U1 - Valve system for a hookah - Google Patents

Abstract

Valve system for a hookah (99) with
a closure head (98) which can be attached to a water container (5) of a water pipe (99) and has an underside directed towards the water container (5) when the closure head (98) is in the attached state and an upper side opposite the underside; and
an upper smoke tube (23) attached to the top of the bolt head (98);
wherein the bolt head (98) comprises:
a first recess (22) designed and set up to establish a first fluid-conducting connection between the upper flue pipe (23) and an interior of the water tank (5),
a second recess (26) designed and set up to establish a second fluid-conducting connection between the interior of the water container (5) and an area surrounding the water pipe (99), and
a third recess (31) having a valve assembly (30) formed thereto and
set up to close a third fluid-conducting connection between the third recess (31) and the water tank (5) in the event of negative pressure in the water tank (5) and to open the third fluid-conducting connection in the event of overpressure in the water tank (5), characterized in that
the valve system has a valve device (16, 16') which interacts with the upper flue pipe (23),
wherein the valve device (16, 16') is designed and set up to assume a first switching position when the pressure in the water tank (5) is negative, in which a fourth fluid-conducting connection (41) outside the upper flue pipe (23) between the third recess (31) and an area surrounding the water pipe (99) and to assume a second switch position in the event of excess pressure in the water tank (5), in which the fourth fluid-conducting connection (41) is open,
wherein the valve device (16, 16') can also assume a third switching position and a fourth switching position,
wherein in the third switching position a fifth fluid-conducting connection (42) between the third recess (31) and an interior of the upper flue pipe (23) is more open than in the fourth switching position.

Description

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

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

It is important that the locking head completely seals the water tank, otherwise secondary air will be sucked in and the water pipe will no longer "draw" properly.

Known closure heads are designed, for example, in the manner of a screw or plug closure and have connection openings for one or more 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 being drawn through the unused connection openings, particularly in the case of an arrangement of several connection openings for one smoke hose each, a valve arrangement in the manner of a non-return valve can be provided in the recess or recesses. The valve arrangement can have a valve body acted upon by gravity and/or spring force, which can be brought into sealing contact with a valve seat that can be detachably fastened in or on the recess at the end face. By loosening the valve seat, the valve arrangement or at least the valve body can be removed, inserted or exchanged as required.

In order to be able to blow fresh air into the air space of the water tank by means of one of the smoke hoses, especially while using the water pipe, for example to lower the smoke temperature, the associated non-return valve of the smoke connection is usually removed or bypassed by a valve device. The blown air escapes through the non-return valves of the connections of the other smoke hoses. Blow-out openings with non-return valves are also provided, which allow air to pass from the bowl to the ambient air and prevent ambient air from being sucked into the bowl. The opening pressure of the non-return valves of the exhaust openings is lower than the necessary opening pressure of the non-return valves of the smoke connections. The exhaust air escapes from the exhaust openings on the bolt head to the ambient air. The disadvantage is that when the fresh air is blown into the air space of the water tank, no fresh air gets into the flue pipe, since its lower end opens into the water tank below the water level and seals it as a siphon. When the fish air is blown in, the air pressure in the water tank increases and the water column in the smoke column rises by 10mm to 50mm. Only the air displaced by the water column escapes from the smoke tube through the tobacco head. A complete exchange with fresh air is not achieved. The tobacco in the tobacco head is not significantly cooled due to the small amount of air exchange. A strong reduction in the smoke temperature is not achieved by repeatedly blowing in fresh air.

Proceeding from this state of the art, it is an object of the present invention to provide a valve system for a hookah that is easy to operate and that allows fresh air to be blown into the water tank and the smoke pipe and tobacco bowl. According to further advantageous aspects, the injection pressure should be less than 500 Pascal, for example, a negative pressure in the water pipe should not open the valve system or reduce the tightness, the valve system should preferably be operated by manual intervention, the connection for blowing into the smoke pipe should be through be closed or opened by the user and can preferably be adjusted in the flow cross-section, and for this no components of the water pipe should have to be dismantled or assembled.

The invention relates to a valve system with a valve device which can be used to control the inflow of air from the water tank into the smoke pipe and to the tobacco head. The valve device sits outside of the water tank, preferably above the closure head at the lower end of the upper smoke tube. The valve device has a plurality of switching positions and is preferably operable manually, without the need to disassemble and assemble components. Even when the valve device is open, no air flows into the water tank due to negative pressure. The valve device can remain open permanently without secondary air being sucked in.

A valve system according to the invention is defined by claim 1 for protection. Advantageous configurations and further developments of the invention are the subject matter of the dependent claims.

A valve system for a water pipe according to the present invention has a valve device with a number of switching positions, with which the blocking effect of the smoke tube in the water tank (siphon effect) can be canceled.

The valve device of the valve system is preferably arranged outside the water tank and above the closure head. The valve device has at least one recess which opens into the upper flue pipe.

One embodiment of the invention relates to a valve system for a hookah (99). The valve system comprises a closure head (98) which can be attached to a water container (5) of a water pipe (99) and has an upper side and an underside. In a state attached to the water tank (5), the bottom faces the water tank (5) and the top faces the bottom. An upper smoke tube (23) is attached to the top of the bolt head (98). The closure head (98) has a first recess (22), a second recess (26) and a third recess (31). The first recess (22) is designed and set up to produce a first fluid-conducting connection between the upper flue pipe (23) and an interior of the water tank (5). The second recess (26) is designed and set up to establish a second fluid-conducting connection between the interior of the water container (5) and an area surrounding the water pipe (99). The third recess (31) has a valve arrangement (30). The valve arrangement (30) is designed and set up to close a third fluid-conducting connection between the third recess (31) and the water tank (5) in the event of negative pressure in the water tank (5) and to close the third fluid-conducting connection in the event of overpressure in the water tank (5). to open. The valve system is characterized in that it comprises valve means (16, 16') cooperating with the upper flue pipe (23). The valve device (16, 16') is designed and set up to assume a first switching position when there is a vacuum in the water tank (5), in which a fourth fluid-conducting connection (41) outside the upper flue pipe (23) between the third recess (31) and an area surrounding the water pipe (99) is closed and, in the event of excess pressure in the water tank (5), assume a second switching position in which the fourth fluid-conducting connection (41) is open. The valve device (16, 16') can also assume a third switching position and a fourth switching position. In the third switch position, a fifth fluid-conducting connection (42) between the third recess (31) and an interior of the upper flue pipe (23) is more open than in the fourth switch position.

In a further embodiment, the valve device (16, 16') has an outer wall (02) and an inner wall (50), and between the outer wall (02) and the inner wall (50) a cavity in which at least one valve body (12, 12 ') is arranged. The at least one valve body (12, 12') is designed and set up to close the fourth fluid-conducting connection (41) in the first switching position and to at least partially release the fourth fluid-conducting connection (41) in the second switching position. In other words, the outer wall (02), the inner wall (50) and the at least one valve body (12, 12') are designed and set up in such a way that they function as at least one shut-off valve (9, 9) that locks on one side.

In a further embodiment, the valve body (12, 12') is designed and set up to assume the first switching position due to gravitation and to assume the second switching position due to an overpressure prevailing in the third recess (31).

In a further embodiment, the at least one valve body (12) is at least one ball or the valve body (12') is designed in one piece as an annular disk.

In a further embodiment the valve means (16, 16') surrounds the upper flue pipe (23).

In a further embodiment, the valve device (16, 16') is designed and set up in such a way that, by means of an axial displacement, in particular along a longitudinal axis of the upper flue pipe (23) or along a longitudinal axis of a linear slide (21'), between the third switching position and the fourth switch position can be changed.

In a further embodiment, the valve device (16, 16') is designed and set up in such a way that by means of a rotation, in particular about a longitudinal axis of the upper flue pipe (23) or about a longitudinal axis of a rotary slide (21) can be switched between the third switching position and the fourth switching position.

In a further embodiment the valve means is displaceable in relation to the upper flue pipe (23). The inner wall (50) has a fifth recess (14) which is designed and arranged in such a way that it overlaps with the fourth recess ( 15) can be brought, wherein in the third switching position the fifth recess (14) overlaps the fourth recess (15) more than in the fourth switching position.

In a further embodiment, the displacement of the valve means (16, 16') with respect to the upper flue (23) is a rotational displacement about the longitudinal axis of the upper flue (23).

In a further embodiment, the displacement of the valve means (16, 16') with respect to the upper flue is a translational displacement along the longitudinal axis of the upper flue (23).

In a further embodiment, the inner wall (50) completely overlaps the fourth recess (15) in the fourth switching position.

In another embodiment, the inner wall (50) is part of the upper flue tube (23). That is, the inner wall (50) of the valve device (16, 16') is the wall (13) of the flue pipe.

In another embodiment, the valve system further includes a cladding tube (10) surrounding the upper flue tube (23). An annular space (32) is formed between the cladding tube (10) and the upper smoke tube (23) and is connected to the third recess (31) in a fluid-conducting manner.

In a further embodiment, the valve device (16) is arranged in a longitudinal direction of the upper smoke tube (23) between the closure head (98) and the cladding tube (10).

In a further embodiment, the cladding tube (10) is arranged in a longitudinal direction of the upper smoke tube (23) between the valve device (16') and the closure head (98).

In a further embodiment, the valve device (16, 16') for setting the third switch position and fourth switch position has a rotary slide (21) that can be operated manually from the outside.

In a further embodiment, the valve device (16, 16') for setting the third switch position and fourth switch position has a linear slide (21) that can be operated manually from the outside.

In a further embodiment, the fifth fluid-conducting connection is closed in the fourth switching position.

In another embodiment, a lower smoke tube (24) is attached to the underside of the bolt head (98).

A further embodiment of the invention comprises a water pipe (99) with a valve system according to the invention according to one of the above embodiments.

The invention is explained in more detail below with reference to drawings showing only exemplary embodiments.

• 1 in schematischer nicht maßstäblicher Darstellung den grundsätzlichen Aufbau einer Wasserpfeife;
• 2a uns 2b (Schnittansicht) ein erstes Ausführungsbeispiel eines Verschlusses mit Ausblasöffnung nach dem Stand der Technik;
• 3a bis 3d (Schnittansicht) ein erstes Ausführungsbeispiel eines erfindungsgemäßen Ventilsystems mit einer Ventileinrichtung mit mehreren Schaltstellungen und einem kugelförmigen Ventilkörper für ein Sperrventil;
• 4 (Schnittansicht) ein zweites Ausführungsbeispiel eines erfindungsgemäßen Ventilsystems mit einer Ventileinrichtung mit einem ringscheibenförmigen Ventilkörper für mehrere Sperrventile;
• 5 (Schnittansicht) ein drittes Ausführungsbeispiel eines erfindungsgemäßen Ventilsystems mit einer axial verschiebbaren Ventileinrichtung;
• 6 (Schnittansicht) ein viertes Ausführungsbeispiel eines erfindungsgemäßen Ventilsystems mit einer Ventileinrichtung, die einen von außen bedienbaren Drehschieber umfasst;
• 7 (Schnittansicht) ein fünftes Ausführungsbeispiel eines erfindungsgemäßen Ventilsystems mit einer Ventileinrichtung, die einen manuell von außen bedienbaren Linearschieber umfasst;
• 8 (Schnittansicht) ein siebtes Ausführungsbeispiel eines erfindungsgemäßen Ventilsystems mit einer Ventileinrichtung und einem das Rauchrohr umgebenden Hüllrohr, wobei die Ventileinrichtung zwischen Hüllrohr und dem Verschlusskopf angeordnet ist;
• 9 (Schnittansicht) ein achtes Ausführungsbeispiel eines erfindungsgemäßen Ventilsystems mit einer Ventileinrichtung und einem das Rauchrohr umgebenden Hüllrohr, wobei das Hüllrohr zwischen der Ventileinrichtung und dem Verschlusskopf angeordnet ist.

Show it:

• 1 in a schematic representation, not to scale, the basic structure of a hookah;
• 2a us 2 B (Sectional view) a first exemplary embodiment of a closure with a blow-out opening according to the prior art;
• 3a until 3d (Sectional view) a first exemplary embodiment of a valve system according to the invention with a valve device with a plurality of switching positions and a spherical valve body for a check valve;
• 4 (Sectional view) a second exemplary embodiment of a valve system according to the invention with a valve device with an annular disk-shaped valve body for a plurality of check valves;
• 5 (Sectional view) a third exemplary embodiment of a valve system according to the invention with an axially displaceable valve device;
• 6 (Sectional view) a fourth exemplary embodiment of a valve system according to the invention with a valve device which comprises a rotary slide that can be operated from the outside;
• 7 (Sectional view) a fifth exemplary embodiment of a valve system according to the invention with a valve device which comprises a linear slide which can be operated manually from the outside;
• 8th (Sectional view) a seventh embodiment of a valve system according to the invention with a valve device and a das cladding tube surrounding the smoke tube, the valve device being arranged between the cladding tube and the closure head;
• 9 (Sectional view) an eighth exemplary embodiment of a valve system according to the invention with a valve device and a cladding tube surrounding the smoke tube, the cladding tube being arranged between the valve device and the closure head.

That in the 1 The illustrated example of a water pipe 99 according to the prior art has a water container 05 which is filled with a liquid, preferably water, 03 in such a way that an air space 07 remains above the liquid level 04 . The water tank 05 is closed with a closure head 98 . The closure head 98 can (as shown) be releasably and sealingly connected to the water tank 05 by means of a sealing element 08, for example, or can be positively connected to the water tank 05, for example by means of a screw connection (not shown). The closure head 98 can be constructed in several parts or (as shown) in one piece. A flue pipe 06 extends through the closure head 98, the lower end of which opens out into the liquid 03 in the water tank 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 can be held. A smoke connection 19 and a smoke hose 20 are arranged on the closure head 98 in a smoke hose connection recess (second 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 the air enriched with the vaporized tobacco aromas is sucked through the smoke pipe 06 and the water 03 and cooled, cleaned, calmed and cooled by the smoke hose 20 moistened is supplied to the user.

That in the 2 The illustrated exemplary embodiment of a closure system with a blow-out valve 30 has a closure head 98 which is fastened to a water container 05 in a sealing manner by means of a sealing element 08 .

The closure head 98 has a continuous opening (first recess) 22 . A two-part flue pipe 23 and 24 is fixed in this opening, with the upper flue pipe 23 being screwed into the upper opening and the lower flue pipe 24 screwed into the lower opening. The through-opening 22 is designed and set up to establish a first fluid-conducting connection between the upper flue pipe 23 and an interior of the water tank 5 . At the upper end of the upper smoke tube 23, a tobacco bowl 17 is attached; the lower flue pipe 24 opens into the liquid 3 in the water tank 05.

The term "fluid-conducting connection" as used herein means that the connection is such that both liquids and gases can be conducted therein.

One or more smoke hose connection recesses (second recesses) 26 are arranged in the closure head 98, preferably at an angle of approximately 45° to the axis of the smoke pipe. The one or more smoke hose connection recesses 26 open into the inner air space 07. The one or more smoke hose connection recesses 26 are designed and set up to establish a second fluid-conducting connection between the interior of the water container 5 and an area surrounding the water pipe 99.

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

One or more recesses (third recesses) 31 for the air-permeable connection between the air space 07 and the outside of the closure head 98 are arranged in the closure head 98 . In the third recess 31 a valve arrangement 30 is provided, for example in the form of a check valve. The valve arrangement 31 is designed and set up to close a third fluid-conducting connection between the third recess 31 and the water tank 5 in the event of negative pressure in the water tank 5 and to open the third fluid-conducting connection in the event of overpressure in the water tank 5 . The valve arrangement 31 can be designed as a blow-off valve.

If air is blown into the one or more smoke hose connection recesses (second recesses) 26 (to which a roughening hose is usually attached), the smoke escapes from the air space 07 via the valve arrangement 30 and the third recess 31 into the ambient air.

That in the 3a until 3d illustrated first embodiment of a valve system according to the invention corresponds to the additional valve device 16, the embodiment according to 2a, b . In the present case, the upper smoke tube 23 is made in several pieces, but it can also be made in one piece.

The valve device 16 surrounds the upper flue pipe 23. The valve device 16 has a valve housing in which at least one valve body arranged by 12. The at least one valve body 12 is located in a cavity between an outer wall 02 and an inner wall 50 of the valve device 16 (or the valve housing). The inner wall 50 can be as in 3a shown abutting the wall 13 of the upper flue 23 or being formed integrally with the wall 13 of the upper flue 23, eg being part thereof (not shown). The valve housing and the at least one valve body 12 are designed and set up to function together as at least one check valve 09. The valve body 12 is spherical in the present case and a valve body 12 is assigned to each check valve 09 . The valve device 16 is ring-shaped in plan view and has a plurality of axial bores along the circumferential direction, each of which is closed with a spherical valve body 12 . If the pressure in the water tank 05 is negative, the valve device 16 (or the check valve 9) assumes a first switch position (see 3a ), wherein a fourth fluid-conducting connection 41 outside the upper flue pipe 23 between the third recess 31 and an environment of the hookah 99 is closed. In the event of excess pressure in the water tank 5, the valve device 16 (or the check valve 9) assumes a second switching position (see 3b ), in which the fourth fluid-conducting connection 41 is open. The at least one valve body 12 can be designed and set up to close the fourth fluid-conducting connection 41 in the first switching position and to at least partially release the fourth fluid-conducting connection 41 in the second switching position. The at least one valve body 12 can be designed and set up to assume the first switching position due to the force of gravity, i.e. as a result of gravity, and the second switching position due to an overpressure prevailing in the third recess 31, which can arise as a result of an overpressure in the water tank 05 is present and the valve assembly 30 opens to take.

The upper flue pipe 23 has at least one fourth recess 15 in its wall 13, which extends, for example, in the radial direction (defined in relation to the longitudinal axis of the upper flue pipe 23) through the wall 14 of the upper flue pipe 23 into an interior of the upper flue pipe 23. The valve device 16 (or the valve housing) is arranged displaceably in relation to the upper flue pipe 23 or the wall 13 . The valve housing (or the inner wall 50 of the valve device 16) can have at least one fifth recess 14. As a result of a displacement of the valve device 16 in relation to the upper flue pipe 23, the fifth recess 14 can be brought into partial or complete overlap with a fourth recess 15, so that a fifth fluid-conducting connection 42 between the third recess 31 and an interior of the upper flue pipe 23 arises. By shifting the valve device 16 in relation to the upper flue pipe 23, a plurality of switch positions (for example a third switch position and a fourth switch position) can thus be selected. In the third switching position (see 3a, b ) the fifth recess 14 overlaps the fourth recess 15, for example, completely and in the fourth switch position (see 3c, i.e ) for example only partially (or not at all because, for example, the inner wall 50 completely overlaps the at least one fourth recess 50, see FIG 3c ). In other words, in the third switching position, the fifth recess 14 overlaps the fourth recess 15 more than in the fourth switching position. The fifth fluid-conducting connection 42 between the third recess 31 and an interior of the upper flue pipe 23 is therefore more open in the third switching position than in the fourth switching position. The valve device 16 interacts with the upper smoke pipe 23 since the fifth fluid-conducting connection 45 in the upper smoke pipe 23 can be set with it.

The relocation can, for example, as in 3 , 4 , 8th and 9 shown, be a rotational displacement (ie a rotation about a longitudinal axis of the upper flue tube 23), or, as in FIG 4 and 5 shown, for example a translational displacement (displacement along the longitudinal axis of the upper flue tube 23).

the 3a until 3d show different switching positions of the valve device 16. In 3a (Smoke position), the valve device 16 assumes the first and third switching positions. Smoke from the tobacco head 17 is sucked into the water tank 05 in the upper smoke pipe 23 via the first fluid-conducting connection and sucked out of the water tank 5 via the second fluid-conducting connection, which is located outside the upper smoke pipe 23 . The third fluid-conducting connection and the fourth fluid-conducting connection 41 are blocked. The fifth fluid-conducting connection 42 is open. In 3b (Blow-out position), the valve device 16 assumes the second and third switching positions. Air is blown into the water tank 05 via the second recess 26 (second fluid-conducting connection) and is discharged to the atmosphere via the third fluid-conducting connection and the fourth fluid-conducting connection 41 or enters the upper one via the third fluid-conducting connection and the fifth fluid-conducting connection 42 Smoke tube 23 on. The third, fourth and fifth fluid-conducting connections are open. In 3c (Blow-out position), the valve device 16 assumes the second and fourth switching positions. The third fluidic connection and the fourth fluidic connection 41 are open and the fifth fluidic connection 42 is blocked. Blown into the water tank 05 via the second fluid-conducting connection Air is vented to atmosphere via the third fluidic connection and the fourth fluidic connection 41, but does not enter the upper flue tube 23 because the fifth fluidic connection 42 is blocked. 3d corresponds essentially to the in 3b switching position shown, although the fifth fluid-conducting connection 42 is less open (reduced flow cross-section) and thus less air enters the upper smoke tube 23.

That in the 4 illustrated second embodiment of a valve system according to the invention corresponds essentially to the embodiment 3 and differs with respect to the valve body 12'.

The valve housing 02 has, for example, a plurality of check valves 09 . The valve body 12' is assigned to a number of check valves 09 (or a number of axial bores) (in contrast, in 3 each check valve, or each axial bore, assigned its own valve body 12). The valve body 12' is preferably designed in one piece as an annular disk. In 4 the valve device 16 assumes the first switching position and the third switching position. Since only one valve body 12' is necessary, this embodiment is advantageous in terms of manufacture.

That in the 5a and 5b illustrated third embodiment of a valve system according to the invention corresponds essentially to that in 4 shown embodiment, with the difference that the valve means 16 is translationally displaceable instead of rotationally displaceable. The third or fourth switching position can be set by shifting the valve device 16 along the longitudinal axis of the upper flue pipe 23 .

That in the 6 The fourth exemplary embodiment of a valve system according to the invention that is shown differs from the exemplary embodiments shown above in that the valve device for setting the third or fourth switching position has a rotary slide 21 that can be operated manually from the outside, which extends through the fourth recess 15 and extends along its longitudinal axis has changed cross-section. A cross section of the fifth fluid-conducting connection can be changed by rotating the rotary slide 21 about its longitudinal axis.

That in the 7 The fifth exemplary embodiment of a valve system according to the invention shown differs from the exemplary embodiments shown above in that the valve device 16 has a linear slide 21' that can be operated manually from the outside for setting the third or fourth switching position, which extends through the fourth recess 15 and along a has its longitudinal axis changed cross-section. A cross section of the fifth fluid-conducting connection can be changed by an axial displacement of the linear slide 21 along its longitudinal axis.

That in the 8th illustrated sixth embodiment of a valve system according to the invention corresponds essentially to the embodiment 4 with the exception that a cladding tube 10 is additionally provided.

The cladding tube 10 encloses the smoke tube 23 in such a way that an annular space 32 is formed between the upper smoke tube 23 and the cladding tube 10 . The third recess 31 opens into the annular space 32 and is connected to it in a fluid-conducting manner. At least one sixth recess (casing tube outflow) 11 establishes a fluid-conducting connection between annular space 32 and the ambient air. The valve device 16 (or the housing thereof) can be designed in one piece with the cladding tube 23 or as a separate component. The valve device 16 is arranged in a longitudinal direction of the upper smoke tube 23 between the closure head 98 and the cladding tube 10 .

That in the 9 The seventh exemplary embodiment shown of a valve system according to the invention corresponds to the position of the valve device 16' according to the exemplary embodiment 8th . The jacket tube 10 is arranged in a longitudinal direction of the upper smoke tube 23 between the valve device 16 ′ and the closure head 98 .

Reference List

02 02' 02"

outer wall of the valve device

03

liquid

04

liquid level

05

water container (bowl)

06

Smoke pipe, multi-part

07

airspace

08

sealing element

09 09'

check valve

10

cladding tube

11

sixth recess, enveloping tube vent

12 12'

valve body

13 13'

flue wall

14 14' 14''

fifth recess

15

fourth recess

16 16'

valve device

17

tobacco head

18

coal plate

19

smoke hose connection

20

smoke hose

21 21'

rotary slide, linear slide

22

first recess, opening for flue pipe

23

Upper smoke tube

24

Lower smoke tube

26

second recess, smoke hose connection recess

30

Valve arrangement blow-off valve

31

third recess

32

annulus

41

fourth fluid-conducting connection

42

fifth fluid-conducting connection

50

Inner wall of the valve device

98

bolt head

99

hookah

Claims (22)

Valve system for a water pipe (99) with a closure head (98) which can be attached to a water tank (5) of a water pipe (99) and an underside directed towards the water tank (5) when the closure head (98) is in the attached state and one of the underside having opposite top; and an upper smoke pipe (23) attached to the top of the bolt head (98); the closure head (98) having: a first recess (22) designed and configured to establish a first fluid-conducting connection between the upper smoke pipe (23) and an interior of the water tank (5), a second recess (26) designed to do so and set up to establish a second fluid-conducting connection between the interior of the water tank (5) and an area surrounding the water pipe (99), and a third recess (31) with a valve arrangement (30), designed and set up to allow negative pressure in the water tank (5 ) to close a third fluid-conducting connection between the third recess (31) and the water tank (5) and to open the third fluid-conducting connection in the event of excess pressure in the water tank (5), characterized in that the valve system has a valve device (16, 16'). , which interacts with the upper flue pipe (23), the valve device (16, 16') being designed and set up for this purpose, with negative pressure i take up a first switching position in the water tank (5), in which a fourth fluid-conducting connection (41) is closed outside the upper smoke tube (23) between the third recess (31) and an area surrounding the water pipe (99) and if there is overpressure in the water tank (5 ) adopt a second switching position, in which the fourth fluid-conducting connection (41) is open, wherein the valve device (16, 16') can also assume a third switching position and a fourth switching position, wherein in the third switching position a fifth fluid-conducting connection (42) between the third recess (31) and an interior of the upper flue pipe (23) is more open than in the fourth switching position. valve system claim 1 , wherein the valve device (16, 16') has an outer wall (02), an inner wall (50) and a cavity in between, in which at least one valve body (12, 12') is arranged, wherein the at least one valve body (12, 12 ') is designed and set up to close the fourth fluid-conducting connection (41) in the first switching position and to release the fourth fluid-conducting connection (41) at least partially in the second switching position. valve system claim 2 wherein the at least one valve body (12, 12') is designed and set up to assume the first switching position due to the force of gravity, and to assume the second switching position due to an overpressure prevailing in the third recess (31). Valve system according to one of Claims 1 until 3 wherein the valve means (16, 16') surrounds the upper flue pipe (23). Valve system according to one of claims 2 until 4 , wherein the at least one valve body (12) is a ball. Valve system according to one of claims 2 until 4 , wherein the valve body (12 ') is formed in one piece as an annular disc. Valve system according to one of Claims 1 until 6 , wherein the valve device (16, 16') is designed and set up in such a way that by means of an axial displacement, in particular along a longitudinal axis of the upper flue pipe (23) or along a longitudinal axis of a linear slide (21'), between the third switching position and the fourth Switch position can be changed. Valve system according to one of Claims 1 until 6 , wherein the valve device (16, 16') is designed and set up in such a way that a change is made between the third switch position and the fourth switch position by means of a rotation, in particular about a longitudinal axis of the upper smoke tube (23) or about a longitudinal axis of a rotary slide (21). can be. Valve system according to one of Claims 1 until 8th wherein the fifth fluid-conducting connection (42) is a fourth recess (15) in a wall (13) of the upper flue pipe (23). valve system claim 9 , the valve device (16, 16') being displaceable in relation to the upper flue pipe (23), the inner wall (50) having a fifth recess (14) designed and set up in such a way that, as a result of a displacement of the valve device (16 , 16') in relation to the upper flue pipe (23) can be brought into overlap with the fourth recess (15), wherein in the third switch position the fifth recess (14) overlaps the fourth recess (15) more than in the fourth switch position . valve system claim 10 wherein the displacement of the valve means (16, 16') with respect to the upper flue (23) is a rotational displacement about the longitudinal axis of the upper flue (23). valve system claim 10 wherein the displacement of the valve means (16, 16') with respect to the upper flue (23) is a translational displacement along the longitudinal axis of the upper flue (23). Valve system according to one of claims 9 until 12 , wherein in the fourth switching position the inner wall (50) completely overlaps the fourth recess (15). Valve system according to one of Claims 1 until 13 , wherein the inner wall (50) is part of the upper flue pipe (23). Valve system according to one of Claims 1 until 14 , further comprising a cladding tube (10) surrounding the upper chimney tube (23), an annular space (32) being formed between the cladding tube (10) and the upper chimney tube (23) which is fluidly connected to the third recess (31). valve system claim 15 , wherein the valve device (16) is arranged in a longitudinal direction of the upper smoke tube (23) between the closure head (98) and the cladding tube (10). valve system claim 15 wherein the jacket tube (10) is arranged in a longitudinal direction of the upper smoke tube (23) between the valve device (16') and the closure head (98). Valve system according to one of Claims 1 until 17 , wherein the valve device (16) for setting the third switching position and fourth switching position has a rotary slide (21) that can be operated manually from the outside. Valve system according to one of Claims 1 until 17 , wherein the valve device (16) for setting the third switching position and fourth switching position has a manually operable linear slide (21) from the outside. Valve system according to one of Claims 1 until 19 , wherein the fifth fluid-conducting connection is closed in the fourth switching position. Valve system according to one of Claims 1 until 20 and further comprising a lower flue tube (24) attached to the underside of the bolt head (98). Water pipe (99) having a valve system according to one of Claims 1 until 21 .

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