WATER-BEARING ARRANGEMENT

Description

[0001] The invention relates to an arrangement suitable for water conveyance, which is hereinafter also referred to as a water-carrying arrangement, comprising a functional unit and at least one connecting hose.

[0002] Such water-carrying arrangements are known and are used, for example, in sanitary fittings. The connecting hoses often serve to separate the function of supplying water to a functional unit, such as a valve or a water outlet, from the function of mechanically supporting the functional unit on the sanitary fitting. This often results in the fluidic connection between the connecting hose and the functional unit being concealed within the sanitary fitting when in use.

[0003] From EP 2 592 270 A1, a pump hose for a peristaltic pump for insertion into a peristaltic pump segment is known, comprising a tubular central section, connection parts arranged on both sides for connecting the pump hose to other elements, and flange parts arranged on both sides for insertion into a cassette part of the peristaltic pump. The pump hose is characterized in that the tubular central section, the connection parts arranged on both sides, and the flange parts arranged on both sides are manufactured in one piece from silicone, and the connection parts each have a head-like sealing surface, wherein the sealing surface is surrounded by a substantially circular sealing bead that projects longitudinally beyond the sealing surface.

[0004] From CH 657 403 A5, a discharge device on a sanitary fitting for cold and hot water is known, with a hot water channel running separately within a cold water discharge pipe up to the outlet. The discharge device is characterized in that the cold water discharge pipe has a nozzle with an internal thread into which a jet breaker insert is screwed, the portion of which protrudes beyond the nozzle forming a radially outer annular opening for cold water and a coaxial inner pipe opening for hot water by means of an inner sleeve and an outer sleeve, the inner of the sleeves being in close contact with a coupling pipe section which in turn is attached to the outlet-side end of the hot water channel.

[0005] Document FR 1 146 949 A discloses a method for joining pipes made of plastic materials and the couplings thus obtained, which can be used in particular for pipes that are intended to withstand temperatures high enough to cause softening of the material from which they are made.

[0006] Publication CA 3 013 133 A1 discloses different taps, namely in particular a pull-out tap and a pull-down tap.

[0007] The invention is based on the objective of creating a fluidic connection that is easy to manufacture in a water-bearing arrangement.

[0008] To solve the aforementioned problem, the features of claim 1 are provided according to the invention. In particular, in a water-carrying arrangement of the type mentioned above, it is proposed according to the invention that an integrally formed retaining flange is formed in one piece at one end of the connecting hose facing the functional unit, and that the retaining flange is hooked onto a hose receptacle of the functional unit, in particular a valve. Thus, a hose nipple on the connecting hose is unnecessary. This simplifies the production of the fluidic connection. If no hose nipple is required, a larger internal cross-section can be selected while maintaining the same external dimensions. This is advantageous for minimizing flow resistance.

[0009] For example, the functional unit can be a valve or a water outlet. The invention is therefore advantageously applicable to functional units that are arranged in confined spaces.

[0010] For example, the connecting hose can be an inlet hose. The invention can therefore also be used with connecting hoses operating at a comparatively high pressure. Here, for instance, the connecting hose can be a cold water hose. This can positively influence the long-term stability of the fluidic connection.

[0011] For example, the connecting hose can also be a drain hose. The invention takes advantage of the fact that the operating pressure on the drain side of a functional unit is often significantly lower than on the inlet side due to the pressure drop across the functional unit.

[0012] In one embodiment of the invention, the connecting hose can be made of a thermoplastic material. This makes it particularly easy to shape the retaining collar.

[0013] In one embodiment of the invention, the retaining collar can be formed by thermoplastic forming. An advantage of this is that the connecting hose can be made from an extruded material. In this case, the retaining collar can, for example, be formed after the connecting hose has been cut to length.

[0014] In one embodiment of the invention, the hose receptacle can be open at the side. This eliminates the need to thread the connecting hose.

[0015] In one embodiment of the invention, the hose receptacle can be designed to be completely closed. This allows the retaining flange to be supported along its entire circumference.

[0016] According to the invention, a radially acting tension anchor is formed on the retaining flange. This provides a pull-out protection mechanism. This is particularly advantageous if the connecting hose partially loses or loses its dimensional stability due to heating with flowing hot water.

[0017] For example, the tie rod can be designed as a groove or rib. This allows for a positive fit between the retaining collar and the hose receptacle using simple means. The hose receptacle can, for example, be provided with a corresponding shape, particularly on a contact surface.

[0018] The groove or rib can, for example, be formed all around to hold the retaining rim on all sides.

[0019] In one embodiment of the invention, the retaining collar can be pressed against a contact surface on the hose receptacle. This prevents the retaining collar from slipping out. It is particularly advantageous if the previously described tension anchor is formed on the retaining collar. The contact pressure ensures that the positive locking of the tension anchor does not unintentionally loosen, even at high water temperatures.

[0020] In one embodiment of the invention, it can be provided that a contact surface, for example the one already mentioned, is formed on the hose receptacle corresponding to the retaining flange. Thus, a positive fit can be achieved.

[0021] For example, a radially acting counter-tension anchor can be formed. The interlocking of the tension anchor and counter-tension anchor can achieve a particularly secure hold of the retaining flange.

[0022] This can be achieved, for example, by a positive fit between the hose receptacle and the retaining collar.

[0023] A simple embodiment of a positive locking mechanism is achieved by at least one, preferably circumferential, rib that engages in a groove. This can provide additional sealing.

[0024] At least one rib can be formed, for example, on the contact surface and / or on the retaining rim.

[0025] In one embodiment of the invention, the hose receptacle may have a circumferential support disc on which the retaining rim rests. An advantage of this is that, regardless of the design of the functional unit, all-around support of the retaining rim can be achieved, particularly when the hose receptacle is open laterally.

[0026] Preferably, the support disc is designed to be removable. This can simplify disassembly. Different materials can also be selected for the support disc and for the mounting plate that supports the support disc.

[0027] For example, the support disc may be designed as a stamped and / or bent part. Thus, the support disc can be made of metal, while the aforementioned carrier plate of the functional unit can be made of plastic.

[0028] For example, the support disc can be designed as a die-cast part, particularly a zinc die-cast part. This allows for the use of alternative materials.

[0029] Alternatively or additionally, the support disc can be designed as a plastic part. This can be made of thermoplastic material, for example, to allow for easy manufacturing.

[0030] Alternatively or additionally, sharp-edged structures can be formed on one of the contact surfaces for the retaining rim, particularly the one already described. These sharp-edged structures can dig into the retaining rim to hold it securely in place. This is particularly easy to achieve if the support disc is a stamped part, bent part, or die-cast part, especially a zinc die-cast part, for example, made of metal.

[0031] In this context, the sharp-edged structures can, for example, have at least one holding claw. Thus, structures that are particularly easy to manufacture are described.

[0032] In one embodiment of the invention, a sealing surface can be formed at the end of the connecting hose. An advantage of this is that a sealing function can be integrated into the retaining collar. Additional sealing agents are unnecessary. The connecting hose can therefore be manufactured from a single component, since a sealing ring or other sealing agent can be provided on the functional unit.

[0033] The sealing surface can, for example, be formed all around. This allows for a complete seal.

[0034] It can be designed so that the sealing surface acts axially. This allows for a contact pressure, in particular the contact pressure described above, to be applied to the retaining flange for sealing purposes.

[0035] Alternatively or additionally, the sealing surface can be designed to act radially. This describes an arrangement whose sealing effect is independent of any contact pressure on the retaining flange.

[0036] In one embodiment of the invention, an axially acting sealing surface can be formed on an inflow side of the retaining flange. This allows a sealing ring to be easily attached.

[0037] It may be provided that an axially acting counter-sealing surface is formed on the valve. This can be provided, for example, by an inserted sealing ring.

[0038] In one embodiment of the invention, a radially acting sealing surface can be formed on a nozzle that projects beyond the retaining flange on the inflow side. This allows for the formation of a radial seal that is simple to manufacture, particularly by thermoplastic forming.

[0039] It is possible to incorporate a radially acting counter-sealing surface on the valve. An advantage of this is that the valve's contact pressure can be used to create a seal. Here, too, the counter-sealing surface can be formed on a sealing ring.

[0040] In one embodiment of the invention, a circumferential rim of an inlet opening at the end of the connecting hose may have a sharp edge. This allows for a groove-free design of the transition between the connecting hose and the functional unit. Such grooves can cause turbulence in the flowing water and thus unintentionally reduce the clear effective cross-section at the transition.

[0041] For example, the sharp edge can be formed using a tool without a radius. This allows for the use of a simple tool to achieve the smoothest possible transition, particularly in thermoplastic forming.

[0042] Alternatively or additionally, the surrounding edge can be designed to be flush with the valve. This often prevents cross-sectional constrictions of the flow and / or an increase in flow resistance. Avoiding irregularities at the transition also reduces the potential for dirt accumulation in this area.

[0043] In one embodiment of the invention, the functional unit can be a mixing cartridge. This covers a common application.

[0044] In one embodiment of the invention, the connecting hose can be a mixed water hose. The invention takes advantage of the fact that mixed water hoses are frequently subjected to low operating pressure, thereby reducing the stress on the fluidic connection at the retaining flange.

[0045] In a preferred application, a sanitary fitting with a water-bearing arrangement according to the invention, in particular as described above and / or according to one of the claims directed to a water-bearing arrangement, is proposed to solve the aforementioned problem.

[0046] For example, the connecting hose can be designed to serve as a drain hose leading to a water outlet of the sanitary fitting. This ensures that the operating pressure differs only slightly from the ambient pressure if the pressure drop across the water outlet is minimal. This simplifies the requirements for a permanently leak-proof seal at the retaining collar.

[0047] Alternatively or additionally, it can be provided that at least one inlet hose of the functional unit, in particular of the valve, has a hose nipple. Thus, a pressure-tight connection with a hose nipple on the functional unit can be combined with the described connection via a retaining collar, for example, on the outlet side.

[0048] The invention is described in more detail below with reference to exemplary embodiments, but is not limited to these embodiments. Further embodiments result from combining the features of one or more claims with each other and / or with one or more features of the exemplary embodiments.

[0049] It shows: Fig. 1 shows a sanitary fitting with a water-bearing arrangement according to the invention in a partially cutaway view, Fig. 2 shows a detail from Figure 1 , Fig. 3 the functional unit with connecting hoses made of Figure 1 in a partially disassembled state, Fig. 4 a connecting hose of the water-carrying arrangement according to Figure 1 In an oblique view from above to illustrate the assembly process, Fig. 5 shows a sectional view through a connecting hose of the water-carrying arrangement according to Figure 1 in an axial section view, Fig. 6 a detail from Figure 5, Fig. 7 a variant of a connecting hose analogous to the illustration according to Figure 5 , Fig. 8 a detailed view from Figure 7 , Fig. 9 a view of an inflow side of a support plate of the water-bearing arrangement according to Figure 1 to explain the location of the section in Figure 5 , Fig. 10 a variant of a carrier plate analogous to Figure 9 , Fig. 11 the use of a connecting hose with retaining flange on a carrier plate according to Figure 10 , Fig. 12 a view analogous to Figure 11 obliquely from below onto an outflow side of the support plate, Fig. 13 an axial sectional view analogous to Figure 5 Another variant of a connecting hose with retaining flange and support disc, Fig. 14, a detailed illustration from Figure 13 , Fig. 15 a view of the inflow side of a support disc made of Figure 13 , Fig. 16 an axial sectional view of the support disc according to Figure 15, Fig. 17 a three-dimensional oblique view to illustrate the assembly of an arrangement according to Figure 13 , Fig. 18 a view of the outflow side of the support plate made of Figure 17 , Fig. 19 an axial section view analogous to Figure 5 another variant of a connecting hose with a retaining rim and Fig. 20 a partial illustration from Figure 19 .

[0050] The Figures 1 to 6 and 9 They show a first embodiment and are described together below.

[0051] A sanitary fitting designated as a whole by 1 has a water-carrying arrangement 2. This water-carrying arrangement 2 comprises at least one sanitary functional unit 3, a connecting hose 4 and further connecting hoses 5.

[0052] The functional unit 3 has two inputs and one output, with the further connecting hoses 5 connected to the inputs and the connecting hose 4 to the output.

[0053] A retaining flange 7 is formed at one end 6 of the connecting hose 4 facing the functional unit 3.

[0054] The functional unit 3 has a functional body 8 and a carrier plate 9.

[0055] The further connecting hoses 5 each have a connector 10 in a manner known per se, which comprises a hose nipple 13 and a crimp sleeve 14. The connectors 10 are suspended in hose receptacles 11 on the carrier plate 9 in a manner known per se.

[0056] The retaining flange 7 of the connecting hose 4 is hooked directly into a hose receptacle 12 on the carrier plate 9 without a separate connection.

[0057] The retaining rim 7 is made of the same material as the connecting hose 4 and is formed in one piece on the connecting hose 4.

[0058] The connecting hose 4 consists of a thermoplastic material that was cut to length before assembly. The retaining flange 7 was thermoplastically formed from the hose material on the connecting hose 4 using a heated die, so that the hose material was raised to form the retaining flange 7.

[0059] In Figure 4 It is evident that the hose receptacle 12 is designed to be completely closed, so that the connecting hose 4 must be threaded through the hose receptacle 12 and pulled through to the retaining flange 7 during assembly.

[0060] In the illustrated embodiment, the functional unit 3 is designed as a valve 15, which can be actuated with an externally accessible actuating element 16 in order to control the flow from the further connecting hoses 5 into the connecting hose 4.

[0061] The connecting hose 4 is thus designed as a drain hose 17, which is connected to the low-pressure side of the functional unit 3 in the manner described with a retaining flange 7.

[0062] In the Figures 5 and 6 It is evident that the underside 18 of the retaining rim 7 is not flat, but has a structure.

[0063] This structure forms a tension anchor 19, which acts in a radial direction and prevents the retaining flange 7 from being pulled through the hose receptacle 12. This danger can arise, for example, if the connecting hose 4 is heated to such an extent by hot water flowing through it that its dimensional stability is significantly reduced or no longer exists.

[0064] In the exemplary embodiment, the aforementioned tie rod 19 is formed by a rib 20 on the underside 18, which engages in a corresponding groove 21 on a bearing surface 22 for the retaining flange 7 on the support plate 9.

[0065] The groove 21 thus forms a counter-tension anchor 23, which provides radial securing and fixing of the retaining flange 7 in interaction with the tension anchor 19.

[0066] A sealing surface 25 is formed on an upper surface 24 of the retaining rim 7, which enables an axial seal.

[0067] Since in this embodiment the connecting hose 4 is designed and used as a drain hose 17, the top side 24 is the inflow side 26.

[0068] A suitable counter-sealing surface 27 with an axially sealing sealing ring 28 is formed on the functional body 8. In the operating position, the functional body 8 is pressed against the carrier plate 9, so that on the one hand the tension anchor 19 and the counter-tension anchor 23 are held in their operating position and on the other hand the sealing ring 28 is pressed against the sealing surface 25 to effect the seal.

[0069] In the detailed view after Figure 2 It is also evident that at the end 6 an inlet opening 29 of the connecting hose 4 is formed, which has a sharp-edged edge 30 or a radius-free edge 31. This creates a smooth transition 32 to the functional body 8, without any irregularities in the wall of the fluid guide causing turbulence.

[0070] The valve 15 is a mixing cartridge 33, with the connecting hose 4 being led as a mixing water hose 34 to the water outlet 35 at the end of the outlet pipe 36.

[0071] The Figures 7 and 8 show a variant of a combination of a connecting hose 4 with a carrier plate 9, as used instead of the combination according to Figure 5 in the water-bearing arrangement 1 according to the Figures 1 to 4 Components and functional units that are functionally and / or structurally identical or the same as those in the preceding embodiment are designated with the same reference numerals and are not described again in detail. The descriptions of the preceding embodiment therefore apply to the Figures 7 and 8 accordingly.

[0072] In the embodiment according to the Figures 7 and 8The tension anchor 19 and the counter-tension anchor 23 are formed by a rib 20 in the bearing surface 22 and a corresponding groove 21 on the underside 18 of the retaining flange 7.

[0073] In other embodiments, other combinations of grooves and ribs or other means are implemented to create a positive locking effect.

[0074] The Figures 10 to 16 This shows a further embodiment. Again, structurally and / or functionally identical or identical components and functional units to those in the preceding embodiments are designated with the same reference numerals and are not described separately again. The explanations regarding the Figures 1 to 9 therefore applicable to the Figures 10 to 16 accordingly.

[0075] The embodiment according to the Figures 10 to 16differs from the preceding embodiments in that the hose receptacle 12 is open laterally, as was already the case with the hose receptacles 11.

[0076] In order to grip the retaining rim 7 on all sides, a support disc 37 is placed in the hose receptacle 12, which forms the contact surface 22.

[0077] The support disc 37 is made of a non-thermoplastic material, for example, metal. In the exemplary embodiment, the support disc 37 is stamped or bent.

[0078] In further embodiments, the support disc 37 is made of a non-metallic material, for example a plastic.

[0079] In further embodiments, sharp-edged structures, for example retaining claws, can be formed on the contact surface 22, with which the support disc 37 can hook into the retaining rim 7.

[0080] The Figures 17 to 20 Figure 1 shows a further embodiment of the invention. Again, functionally and / or structurally similar or identical components and functional units with the same functional units as those in the preceding embodiments are designated and not described separately. The explanations regarding the Figures 1 to 16 Therefore, they apply to the Figures 17 to 20 accordingly.

[0081] The embodiment according to the Figures 17 to 20 This embodiment differs from the preceding embodiments in that, instead of an axially acting sealing surface 25, a nozzle 38 is formed at the inlet end 6. This nozzle 38 forms a radially oriented sealing surface 25, which engages in a sealing ring 28 that is inserted into a lower part 39 of the functional body 8 and is radially pressed in.

[0082] In the water-carrying arrangement 1, it is therefore proposed according to the invention to form a retaining flange 7 in one piece at one end 6 of the connecting hose 4, which engages a hose receptacle 12 in order to hook the connecting hose 4. List of reference symbols

[0083] 1 Sanitary fitting 2 Water-carrying assembly 3 (Sanitary) functional unit 4 Connecting hose 5 Further connecting hose 6 End 7 Retaining collar 8 Functional body 9 Carrier plate 10 Connector 11 Hose holder 12 Hose holder 13 Hose nipple 14 Crimp sleeve 15 Valve 16 Actuating element 17 Drain hose 18 Underside 19 Tension anchor 20 Rib 21 Groove 22 Bearing surface 23 Counter tension anchor 24 Topside 25 Sealing surface 26 Inlet side 27 Counter sealing surface 28 Sealing ring 29 Inlet opening 30 Edge 31 Edge 32 Transition 33 Mixing cartridge 34 Mixed water hose 35 Water outlet 36 Outlet pipe 37 Support washer 38 Spigot 39 Lower part

Claims

1. Arrangement (2) suitable for conducting water, having a functional unit (3), in particular a valve (15), and at least one connecting hose (4), in particular a supply hose and / or a discharge hose (17), wherein a holding rim (7) is integrally formed in one piece on one end (6) of the connecting hose (4) facing the functional unit (3), and that the holding rim (7) is suspended on a hose receiver (11) of the functional unit (3), characterized in that a radially acting tension rod (19) is formed on the holding rim (7).

2. Arrangement (2) suitable for conducting water according to claim 1, characterized in that the connecting hose (4) is made of a thermoplastic material and / or in that the holding rim (7) is formed by thermoplastic molding.

3. Arrangement (2) suitable for conducting water according to one of the preceding claims, characterized in that the hose receiver (11) is laterally open or in that the hose receiver (11) is designed to be closed all around.

4. Arrangement (2) suitable for conducting water according to one of the preceding claims, characterized in that the tension rod (19) is designed in the form of a preferably encircling groove (21) or rib (20).

5. Arrangement (2) suitable for conducting water according to one of the preceding claims, characterized in that the holding rim (7) is pressed against a bearing surface (22) on the hose receiver (11).

6. Arrangement (2) suitable for conducting water according to one of the preceding claims, characterized in that the or a bearing surface (22) on the hose receiver (11) is designed to correspond to the holding rim (7), in particular so that a radially acting counter-tension rod (23) is formed.

7. Arrangement (2) suitable for conducting water according to one of the preceding claims, characterized in that the hose receiver (11) has a peripheral, preferably removable, supporting disc (37) on which the holding rim (7) rests, in particular wherein the supporting disc (37) is formed as a punched part and / or bent part and / or as a diecast part, in particular a zinc diecast part, and / or as a preferably thermoplastic synthetic material part and / or having sharp-edged structures, preferably at least one holding claw, on the or a bearing surface (22) for the holding rim (7).

8. Arrangement (2) suitable for conducting water according to one of the preceding claims, characterized in that a preferably circumferential, in particular axially and / or radially acting sealing surface (25) is formed at the end (6) of the connecting hose (4).

9. Arrangement (2) suitable for conducting water according to one of the preceding claims, characterized in that an axially acting sealing surface (25) is formed on an inflow side (26) of the holding rim (7), in particular wherein an axially acting counter-sealing surface (27) is formed on the valve (15).

10. Arrangement (2) suitable for conducting water according to one of the preceding claims, characterized in that a radially acting sealing surface (25) is formed on a connecting piece (38) which projects beyond the holding rim (7) on the inflow side (26), in particular wherein a radially acting counter-sealing surface (27) is formed on the valve (15).

11. Arrangement (2) suitable for conducting water according to one of the preceding claims, characterized in that a circumferential rim (30) of an inlet opening (29) at the end (6) of the connecting hose (4) has a sharp-edged edge (31).

12. Arrangement (2) suitable for conducting water according to one of the preceding claims, characterized in that the functional unit (3) is a valve (15).

13. Arrangement (2) suitable for conducting water according to the preceding claim, characterized in that the valve (15) is a mixing cartridge (33).

14. Arrangement (2) suitable for conducting water according to one of the preceding claims, characterized in that the connecting hose (4) is a mixed-water hose (34).

15. Plumbing fixture (1) having an arrangement (2) suitable for conducting water according to one of the preceding claims, in particular wherein the connecting hose (4) is routed as a discharge hose (17) to a water outlet (35) of the plumbing fixture (1) and / or at least one inlet hose of the functional unit (3), in particular of the valve (15), has a hose nipple (13).