SIPHONE DEVICE

Description

[0001] The invention relates to a siphon device, in particular for a wash basin in the sanitary area, with a tubular connecting part which can be connected to the wash basin and a deflecting part which is connected to the connecting part and by means of which a liquid flowing through the siphon device can be collected in order to form an odor trap.

[0002] Such a siphon device is known from practice. This siphon device has several interconnected pipes with a circular cross-section, with a connecting pipe, arranged approximately vertically, connected to a washing area, usually extending more than 20 cm downwards from the washing area, followed by a first bend for diverting a liquid flowing through the siphon device by approximately 180° upwards towards the washing area and a second bend for diverting the liquid by approximately 90° towards a wall. In many cases, an overflow device for the washing area and a lifting rod for a valve device for accumulating the liquid in the washing area are also connected to the siphon device. This can lead to the spread of unpleasant odors. While bad odors can be masked with strong cleaning agents, the often difficult-to-access source of bacteria often remains.Furthermore, such siphon devices become dirty relatively quickly, as dirt often gets trapped and trapped in the siphon. Cleaning the siphon device down to the level of the sealing fluid in the siphon is virtually impossible without disassembling the entire device. Due to their design and dimensions, drawers below the washbasin, such as a vanity unit, require a drawer cutout, which usually significantly reduces the drawer's storage space. Other siphon devices are known, for example, from DE 201 00 826 U1, DE 20 2014 007392 U1, and DE 10 2009 043 859 A1.

[0003] The invention is based on the object of creating a siphon device that is easier to handle.

[0004] This object is achieved according to the invention by a siphon device having the features of claim 1. Advantageous embodiments of the invention are described in the dependent claims.

[0005] The siphon device has a tubular connecting piece that can be connected to the wash basin and a diverting piece connected to the connecting piece. The diverting piece allows fluid flowing through the siphon device to be collected to form an odor trap. According to the invention, the connecting piece and diverting piece are designed such that the flow velocity in the diverting piece is higher than that in the connecting piece. A higher flow velocity in the diverting piece promotes self-cleaning effects, so that dirt particles are less likely to adhere to the interior walls of the siphon device. Furthermore, by increasing the flow velocity, dirt particles located in the connecting piece are more easily sucked in and transported away by the diverting piece.This also reduces the risk of biofilm (a breeding ground for bacteria) forming on the interior walls of the siphon device, which has a positive effect on the development and spread of unpleasant odors. Harmful species are therefore less likely to colonize the siphon device. This makes the siphon device according to the invention lighter and easier to handle.

[0006] Advantageously, the ratio of flow cross-section of the connecting part to flow cross-section of the deflection part is between 5:1 and 1.5:1, preferably between 4:1 and 2:1, particularly preferably 3:1. This development is based on the Bernoulli principle, according to which the pressure exerted by a liquid is inversely proportional to its flow velocity and the sum of velocity and pressure in flowing liquids is constant.

[0007] A reduction in cross-section thus simply leads to an increase in the velocity of the liquid flowing through the siphon device in the area of ​​the deflection part, so that dirt particles are less likely to deposit on the interior walls. In this respect, the siphon device according to the invention is therefore easier to handle. The aforementioned ratios of the flow cross-sections to one another also promote the throughput required in practice by modern siphon devices. This further development is based on the finding that self-cleaning of pipelines is achieved in a siphon device, particularly when a periodic flow velocity of approximately 0.7 m / s is present.

[0008] The previously described increase in flow velocity can be achieved particularly easily by having the connecting part with a circular flow cross-section and the deflecting part with a flow channel with a cross-sectional area in the shape of an elongated hole, with the diameter of the circular cross-sectional area of ​​the connecting part corresponding to the length of the elongated hole of the flow channel. This largely eliminates protrusions, recesses, edges, or gussets in the flow cross-section, all of which promote the accumulation of dirt. Dirt particles are therefore less likely to become trapped and remain; moreover, cleaning is easier due to the continuous transitions.

[0009] Advantageously, the deflection section opens into the connecting section at an angle of approximately 90°. Due to the 90° deflection in the area between the connecting section and the deflection section, the flow velocity at the edge is typically increased, which can promote the removal of dirt particles and largely prevent them from accumulating on the inner wall. The aforementioned abrupt change in flow direction can also help reduce the accumulation of dirt in parts of the siphon device.

[0010] According to a preferred development, the flow channel of the deflection part has a rounded upper surface in the region of its junction with the connecting part, which merges into the flow cross-section of the connecting part. Preferably, the radius of the rounded upper surface of the flow channel of the deflection part corresponds to that of another deflection in the flow channel of the deflection part. The rounded upper surface allows the flow cross-section for the fluid flowing from the connecting part into the deflection part to be largely continuously reduced. This can promote the occurrence of suction effects.

[0011] According to a particularly preferred embodiment of the invention, the radius of each inner curve of the flow channel of the deflection part corresponds approximately to the height of the flow channel of the deflection part, and the radius of each outer curve of the flow channel of the deflection part corresponds approximately to twice the height of the flow channel of the deflection part, as will be explained below. This development, together with the aforementioned development of largely identical radii in the deflections, is based on the finding that a laminar flow of the liquid through the siphon device can ensure high drainage capacities and thus high throughputs through the siphon device. This development can therefore also contribute to improved self-cleaning effects and thus to easier handling of the siphon device.

[0012] Advantageously, the deflection part has a drain pipe at its end opposite the connecting part with a diameter that approximately corresponds to the length of the elongated hole in the flow channel of the deflection part. This allows the transition from the elongated hole flow cross-section of the deflection part to the circular flow cross-section of the drain pipe to be continuous and without projections, recesses, edges, gussets, or the like. This refinement can also contribute to a laminar fluid flow through the siphon device and thus to high drainage performance.

[0013] According to a preferred embodiment, the longitudinal axes of the drain pipe and the diverter form an angle of approximately 120°, and the drain pipe, with its entire cross-sectional area below the further diverter, opens into the flow channel of the diverter. In this respect, in the area of ​​the transition to the drain pipe, the cross-sectional expansion occurs exclusively in height. This means that the connecting pipe remains ventilated, so that no suction effect can occur, for example, on the sealing fluid in the siphon device when further flushing is activated in a downpipe to which the drain pipe is connected. When fluid is not flowing, the area at the upper curve of the tubular flow cross-section in the drain pipe is ventilated, so that the formation of an air cushion is largely prevented.

[0014] According to a preferred embodiment, the siphon device has a total height of approximately 80 mm with a barrier fluid height of approximately 50 mm. This embodiment contributes to significantly simplified handling of the siphon device according to the invention. Firstly, the fluid travels very short distances in the siphon device. Should cleaning of the siphon device become necessary, only a few surfaces need to be cleaned. Secondly, the drawer cutout previously mentioned in relation to the prior art can be completely omitted, so that the entire surface is available as a storage area for a drawer. This also has advantages in the manufacture and handling of cabinets installed underneath washbasins. Furthermore, such a siphon device can be easily driven underneath, which is a great relief for people who use a wheelchair to get to the washing area.Furthermore, such a siphon device is very easy to install. Ultimately, the entire siphon device can be constructed as a single piece. It is clear that such a siphon device requires minimal material and can therefore be manufactured cost-effectively. Even parts that accidentally fall into the siphon device can be removed easily. Such a siphon device is also suitable for installation in wash areas, such as showers and bathtubs.

[0015] Exemplary embodiments of the subject matter of the invention are explained in more detail below with reference to the drawings. They show: Fig. 1 is a schematic perspective view of a siphon device according to a first embodiment; Fig. 2 is a schematic side view of the siphon device according to Fig. 1 ; Fig. 3 a schematic plan view of the siphon device according to Fig. 1 ; Fig. 4a longitudinal section IV - IV in Fig. 3 ; Fig. 5 shows a schematic longitudinal section through a siphon device according to a second embodiment; Fig. 6 shows a schematic longitudinal section through a siphon device according to a third embodiment; Fig. 7 shows a schematic, perspective view of a siphon device according to a fourth embodiment; Fig. 8 shows a schematic plan view of the siphon device according to Fig. 7 ; and Fig. 9 a schematic longitudinal section IX - IX in Fig. 8 .

[0016] In Fig. 1 A first embodiment of a siphon device 1 is shown schematically in a perspective view. The siphon device 1 is particularly suitable for a washing area, such as a vanity unit, a shower, or a bathtub, in the sanitary area. However, it can also be used, for example, in a kitchen sink or anywhere where a liquid can drain from a container, forming an odor trap.

[0017] The siphon device 1 according to Fig. 1 is in Fig. 2 in a schematic side view, in Fig. 3 in a schematic plan view and in Fig. 4 in a longitudinal section IV - IV according to Fig. 3 It should be noted that in all figures, the hatching symbolizing a section has been omitted for the sake of simplicity and clarity.

[0018] The siphon device 1 has a tubular connecting part 2 which can be connected to a washing area (not shown in detail) and a deflection part 3 which is connected to the connecting part 2. With the aid of the deflection part 3, a liquid 4 flowing through the siphon device 1, such as water, can be collected to form an odor trap (see Fig. 4 ). Connecting part 2 and deflecting part 3 are designed such that the flow velocity in deflecting part 3 is higher than that in connecting part 2.

[0019] To increase the flow velocity, the ratio of the flow cross-section of the connecting part 2 to the flow cross-section of the deflecting part 3 is between 5:1 and 1.5:1, preferably between 4:1 and 2:1, particularly preferably 3:1. The connecting part 2 has a flow cross-section with a circular cross-sectional area 5, and the deflecting part 3 has a flow channel 6 with a cross-sectional area in the form of an elongated hole 7. An elongated hole refers to an elongated bore. The narrow sides of the elongated hole are closed off by semicircles whose diameters correspond to the width of the elongated hole. The long sides of the elongated hole run parallel to one another.

[0020] The diameter 10 of the circular cross-sectional area 5 of the connecting part 2 corresponds to the length 11 of the slot 7 of the flow channel 6. As further described in Fig. 4As shown, the flow channel 6 of the deflection part 3 has, in the region of its junction with the connecting part 2, a rounded upper side 12 which merges into the circular flow cross-section of the connecting part 2.

[0021] The radius 13 of the rounded upper side 12 of the flow channel 6 of the deflection part 3 corresponds to that of a further deflection 14. Furthermore, the radius 13 of the rounded upper side 12 corresponds to the radius of each inner curve 15, 16 of the flow channel 6 of the deflection part 3. The radius of each inner curve 15, 16 further corresponds approximately to the height 17 of the flow channel 6 of the deflection part 3. In addition, the radius 20 of each outer curve 21, 22 of the flow channel 6 of the deflection part 3 corresponds approximately to twice the height 17 of the flow channel 6 of the deflection part 3.

[0022] As indicated in all figures, the deflection part 3 has a drain pipe 24 at its end 23 opposite the connection part 2. The diameter 25 of the drain pipe 24 corresponds approximately to the length 11 of the slot 7 of the flow channel 6 of the deflection part 3, as shown in Fig. 3 is illustrated.

[0023] Fig. 2 shows that the longitudinal axes 26, 27 of the drain pipe 24 and the deflection part 3 enclose an angle 30 of approximately 120°. Fig. 4 illustrates that the drain pipe 24 with its entire cross-sectional area opens into the flow channel 6 of the deflection part 3 just below the further deflection 14.

[0024] The siphon device 1 has a total height 31 of approximately 80 mm with a sealing liquid height 32 of approximately 50 mm (see Fig. 4 ). The siphon device is particularly suitable for use in combination with a valve device with an integrated overflow valve. In this case, as described in the Fig. 1 to 9 shown, a lifting rod which is not shown in detail and is described in relation to the state of the art is completely omitted.

[0025] In the Figs. 5 and 6 Further embodiments of the siphon device are shown schematically in longitudinal section.

[0026] The Fig. 5 The siphon device 1 shown has an inner curve 15, which merges directly into the outer curve 22 of the further deflection 14. This allows the siphon device to be Fig. 5 shown embodiment has a shorter overall length than that shown in the Fig. 1 to 4 shown embodiment.

[0027] Another embodiment of the siphon device is shown in Fig. 6 shown schematically in longitudinal section. In this embodiment, the rounding in the transition area between the connecting part 2 and the deflection part 3 is omitted. In this respect, there is no rounded upper side 12 as in the case of the Fig. 1 to 5shown versions are available. This allows the overall length of the siphon device to be shortened even further.

[0028] A fourth embodiment of the siphon device 1 is shown in the Fig. 7 to 9 shown, where Fig. 7 a schematic perspective view, Fig. 8 a schematic plan view of the siphon device according to Fig. 7 and Fig. 9 a schematic longitudinal section IX - IX in Fig. 8 show.

[0029] According to the Fig. 1 to 4 The embodiment of the siphon device 1 shown has a housing 33 that encloses all parts of the siphon device except the drain pipe. This creates a compact external appearance of the siphon device with an exclusive design.

[0030] In the Fig. 7 to 9 In the embodiment shown, the housing 33 is now omitted. Otherwise, the latter embodiment corresponds to that shown in the Fig. 1 to 4The siphon device is shown in the Fig. 7 to 9 is therefore minimalist in design with extremely low material requirements.

[0031] The height 17 of the flow channel 6 can be, for example, 13.5 mm, and the length 11 of the elongated hole is preferably 37 mm. Accordingly, the diameter 10 of the circular cross-sectional area of ​​the connecting part 2 and the diameter 25 of the drain pipe 24 can also be approximately 37 mm.

[0032] According to a preferred embodiment, the entire siphon device 1 is manufactured in one piece. Ideal flow behavior is achieved, particularly in the drain pipe, when the flow cross-section there is approximately half filled with liquid and the space above the liquid is ventilated, as explained above.

[0033] This creates a siphon device that is self-cleaning, easy to clean, relatively inexpensive to manufacture, takes up little space, avoids unpleasant odors and is therefore easier to handle.

Claims

1. Siphon device, in particular for a washbasin in the sanitary area, with a tubular connecting part (2) that can be connected to the washbasin and a deflection part (3) connected to the connecting part (2), by means of which a liquid (4) flowing through the siphon device (1) can be collected in order to form an odor trap, wherein the connecting part (2) has a flow cross-section with a cross-sectional area (5) and the deflection part (3) has a flow channel (6) with a cross-sectional area, wherein the cross-sectional area of the deflection part (3) is smaller than the cross-sectional area (5) of the connecting part, whereby the flow speed in the deflection part (3) is higher than that in the connecting part (2), characterized in that the cross-sectional area (5) of the flow cross-section of the connecting part is circular and the cross-sectional area of the flow channel (6) of the deflection part (3) is in the form of an elongated hole (7), wherein the narrow sides of the elongated hole (7) are closed by semicircles, the diameter of which corresponds to the width of the elongated hole (7), and wherein the diameter (10) of the circular cross-sectional area (5) of the connecting part (2) corresponds to the length (11) of the elongated hole (7) of the flow channel (6).

2. Siphon device according to claim 1, characterized in that the ratio of flow cross-section of the connecting part (2) to flow cross-section of the deflection part (3) is between 5 : 1 and 1.5 : 1, preferably between 4 : 1 and 2:1, particularly preferably 3:1.

3. Siphon device according to claim 1 or 2, characterized in that the deflection part (3) opens into the connecting part (2) at an angle of approximately 90°.

4. Siphon device according to one of claims 1 to 3, characterized in that the flow channel (6) of the deflection part (3) has, in the region of its opening into the connecting part (2), a rounded upper side (12) which merges into the flow cross-section of the connecting part (2).

5. Siphon device according to claim 4, characterized in that the radius (13) of the rounded upper side (12) of the flow channel (6) of the deflection part (3) corresponds to that of a further deflection (14) in the flow channel (6) of the deflection part (3).

6. Siphon device according to claim 5, characterized in that the radius of each inner curve (15, 16) of the flow channel (6) of the deflection part (3) corresponds to a height (17) of the flow channel (6) of the deflection part (3) and the radius of each outer curve (21, 22) of the flow channel (6) of the deflection part (3) corresponds to twice the height (17) of the flow channel (6) of the deflection part (3).

7. Siphon device according to one of the preceding claims, characterized in that the deflection part (3) has, at its end (23) opposite the connecting part (2), a drain pipe (24) with a diameter (25) which approximately corresponds to the length (11) of the elongated hole (7) of the flow channel (6) of the deflection part (3).

8. Siphon device according to claims 5 and 7, characterized in that the longitudinal axes (26, 27) of the drain pipe (24) and the deflection part (3) form an angle (30) of approximately 120° and the drain pipe (24) opens with its entire cross-sectional area below the further deflection (14) into the flow channel (6) of the deflection part (3).

9. Siphon device according to one of the preceding claims, characterized by a total construction height (31) of approximately 80 mm with a sealing liquid height (32) of approximately 50 mm.