Classifications

• • E—FIXED CONSTRUCTIONS
  • E03—WATER SUPPLY; SEWERAGE
  • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
  • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
  • E03C1/02—Plumbing installations for fresh water
  • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices
  • E03C1/084—Jet regulators with aerating means
• • E—FIXED CONSTRUCTIONS
  • E03—WATER SUPPLY; SEWERAGE
  • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
  • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
  • E03C1/02—Plumbing installations for fresh water
  • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices
  • E03C1/086—Jet regulators or jet guides, easily mountable on the outlet of taps

Definitions

• the invention relates to a sanitary insert for use in a faucet outlet, wherein the sanitary insert comprises a functional stage, a pre-filter, and a sealing element.
• a sanitary insert is widely used in practice.
• the invention further relates to a sanitary fitting.
• Sanitary fittings are known in the prior art.
• the invention further relates to the use of a sanitary insert. Such a use is known.
• Typical sanitary inserts have, for example, a pre-filter, a reducing stage, a separating stage, a mixing stage, and/or an outlet stage as functional stages, through which fluid flows in that order.
• Sanitary inserts are also known in which one or more of these stages are missing.
• the reducing stage can be designed, for example, to reduce the flow rate.
• it can be a throttle that reduces the flow rate by a factor dependent on the pressure difference within a given operating range.
• the reducing stage can be a flow regulator that reduces the flow rate to a value that is practically or precisely independent of the pressure within a given operating range.
• Flow regulators often feature an elastic control element that deforms under operating pressure and changes the area of a flow orifice depending on the pressure.
• separation stage One possible function that can be implemented with a separation stage is to differentiate the flow conditions upstream of the separation stage from the flow conditions downstream.
• the separation stage is fluidically decoupled. This is often achieved by an arrangement of separation nozzles, which can be designed, for example, as a separation plate, a diffuser, or in some other way.
• separation nozzles which can be designed, for example, as a separation plate, a diffuser, or in some other way.
• Another characteristic of a separation stage can be, for example, the separation of an incoming water flow into a multitude of individual jets.
• a mixing stage can follow the dispersing stage, typically incorporating flow obstructions to ensure thorough mixing and turbulence of the individual jets generated by the dispersing stage.
• This mixing stage may also include an air intake, created by a negative pressure behind or at the dispersing stage, which can be used to generate an aerated jet.
• a final outlet stage which can be designed as a discharge structure, for example, can perform rectifying functions to generate a unidirectional outflow.
• Another function of an outlet stage can be, for example, to form a fluidically permeable termination of the mixing stage.
• the invention is based on the objective of improving the operating and user characteristics of a sanitary fitting. This objective is achieved by the features of the independent claims. Advantageous embodiments are described in the dependent claims.
• the invention proposes the features of claim 1.
• the front screen be designed to provide a positive-locking retention for the sealing element and that the sealing element can be attached in an assembled position of the sanitary insert. This improves the operating and user characteristics of the sanitary insert.
• the sealing element may be designed with a convex contour (particularly perpendicular to a direction of rotation). This allows for the use of easily manufactured sealing elements.
• the contour can be circular (e.g., in the case of an O-ring) or rectangular (square sealing ring). This allows for the use of common or readily available sealing elements.
• a particular advantage is that the sealing element can be symmetrical to a flip and therefore does not need to be aligned in a specific position. This is especially beneficial for sealing elements with square base shapes and O-rings. Furthermore, this design allows the sealing element to be fitted, which is advantageous because a rubber sealing element stretches better than it compresses. Compared to the prior art, this arrangement of the sealing element can result in a lower overall height. It should be accessible. A further advantage is that sanitary fittings without a reduction stage can also be used.
• the function of the sealing element is to ensure a seal against the flowing water from the outside of the sanitary fitting, thereby preventing the water from escaping laterally.
• the flowing water should preferably exit through an outlet structure of the sanitary fitting. This ensures an attractive spray pattern and full functionality of the sanitary fitting.
• the invention proposes the features of claim 2 to solve the stated problem.
• a sanitary insert of the type described above it is proposed to solve the stated problem by having a mesh size of the pre-filter screen that is smaller than the clear opening of a subsequent constriction. This ensures reliable filtration of the sanitary insert. Dirt particles or limescale deposits can be filtered out by the pre-filter screen, preventing these particles from entering the interior of the sanitary insert and, in particular, from interfering with or impairing the function of a subsequent functional stage (e.g., reduction stage, separation stage, mixing stage, discharge stage).
• a subsequent functional stage e.g., reduction stage, separation stage, mixing stage, discharge stage.
• the positive locking is achieved by a circumferential projection on the feed screen, or by an intermittent projection on the feed screen, or by a circumferential groove. This enables the positive locking mechanism to be achieved. Alternatively, a circumferential contour can also provide the positive locking. Thus, simple and reliable positive locking devices are revealed.
• the intermittent projection can be designed as a retaining finger or retaining claws.
• Retaining claws are defined here as curved elements with a claw-like shape.
• Retaining fingers are defined as elements characterized by a linear shape. Retaining fingers are suitable for locking into place, while retaining claws offer greater resistance to being pulled off.
• the retaining fingers can be arranged radially or axially.
• the pre-filter can be designed to fix or hold the sealing element radially and additionally or alternatively axially. This prevents the sealing element from slipping in a flowing water flow, thus ensuring its functionality.
• the axial direction refers to the direction of water flow, specifically the current direction.
• the radial direction is orthogonal to the current direction. Orthogonal means at an angle of 90°.
• the retaining fingers can be linear, and additionally or alternatively, the retaining claws can be curved. This allows for a robust arrangement.
• the use A combination of holding claws and holding fingers is also possible.
• retaining fingers or claws are formed.
• the retaining fingers or claws are integrally connected to the front screen.
• the retaining fingers can be arranged along the flow direction or at right angles to the flow direction.
• the sanitary insert can be provided with an additional drain structure.
• the drain structure is formed on a housing part.
• An outlet structure refers to the design and shape of the area through which flowing water exits the sanitary fitting. Important aspects of the outlet structure include the flow direction and pattern, pressure drop, flow resistance, distribution, uniformity, and resistance to contamination and clogging.
• the outlet structure preferably features honeycomb-shaped, particularly hexagonal, holes.
• the sealing element can provide a seal against a housing part, particularly the one already mentioned, and additionally or alternatively against the functional stage.
• the functional stage is attached to the housing part and/or the housing part forms a mixing stage. This allows the sealing element to reliably perform its function.
• the functional stage can be designed as a separation stage and additionally or alternatively as a reduction stage and additionally or alternatively as a mixing stage.
• the reduction stage can be designed as a throttle or as a flow regulator.
• the disassembly stage can be designed as a diffuser or perforated plate.
• the sealing element can have a rectangular or circular cross-section.
• the sealing element can have a square cross-section. This allows the sealing element to be adapted to the prevailing conditions, in particular the flow rate and operating pressure, and the mechanical design of the sanitary fitting.
• the housing component may have two interlocking sleeves connected by webs.
• the inner sleeve is cup-shaped, while the outer sleeve is cylindrical. Webs connect the two sleeves. Flow channels or ventilation channels are formed between the webs, through which air can be drawn in, thus enabling mixing of air with the flowing water. This further enhances the functionality of the housing component.
• the housing component has an outlet structure on the downstream side.
• the circumferential and/or intermittent projection in the profile can be designed as a triangular edge. This allows the sealing element to be inserted when the sanitary fitting is already installed.
• the sealing element is preferably made of rubber or an elastomer, for example natural rubber or styrene-butadiene rubber.
• the retaining fingers or claws can be formed integrally with the pre-filter screen.
• the retaining claws or fingers are arranged on the upstream side of the pre-filter screen.
• the retaining fingers can be formed along the direction of flow or orthogonally to the direction of flow.
• the pre-filter can have a downstream stub on which the pre-filter can be supported at the functional stage.
• the function of the pre-filter is to filter out small particles such as limescale or dirt from the flowing water.
• the pre-filter has a mesh size that is smaller than the clear opening of a subsequent constriction, particularly a functional stage.
• the sealing element can be designed to cover a joint between the functional stage and the housing part. This prevents water leakage through the joint.
• the joint is defined as a small gap between the parts (functional stage and housing part).
• the invention proposes the features of claim 14.
• the sanitary fitting of the type described above, the aforementioned problem be solved by the sanitary fitting having a sanitary insert with the features defined above.
• a sanitary fitting can be provided which ensures the complete functionality of the sanitary insert.
• the invention proposes the features of claim 15.
• it is proposed to solve the stated problem by attaching the sealing element to the mounted pre-filter before the sanitary insert part is inserted into the The sealing element is mounted on the sanitary fitting and additionally or alternatively seals the sanitary fitting against the housing part and the functional stage. This allows for simplified installation.
• FIG. 1 shows a sanitary insert 1 according to the invention in a perspective view.
• the sanitary insert 1 is suitable for use in a valve outlet.
• the sanitary insert comprises a functional stage 2 (not shown here), a pre-filter 3 and a sealing element 4, wherein
• the pre-filter screen 3 is designed to provide a positive locking mechanism for the sealing element 4, enabling the sealing element 4 to be placed on the pre-filter screen in the assembled position of the sanitary insert 1.
• the mesh size of the pre-filter screen 3 is smaller than the clear opening of a subsequent constriction (for example, the clear opening of a separating nozzle or the clear opening of a control gap in a reducing stage, particularly a flow regulator).
• the pre-filter screen can efficiently and reliably filter the water flow, removing dirt particles or limescale particles.
• the positive locking mechanism is achieved by an intermittent projection 5 on the pre-filter screen 3.
• the intermittent projection 5 is designed as retaining claws 6.
• the intermittent projection 5 can be designed as a retaining finger (not shown here).
• the positive locking mechanism can be achieved by a circumferential groove.
• the pre-filter screen 3 secures or holds the sealing element 4 radially and, additionally or alternatively, axially.
• the axial direction refers to the direction of water flow.
• the radial direction refers to the direction perpendicular to the flow direction.
• the retaining claws 6 are curved and resist being pulled off to a greater extent than retaining fingers.
• the sanitary insert 1 also has an outlet structure 7 (see Fig. 4 or Fig. 6 ), which is formed on a housing part 8.
• the sealing element 4 enables a seal against the housing part 8 and additionally or alternatively against the functional stage 2 ( Fig. 5 , Fig. 6
• the functional stage 2 is attached to the housing part 8.
• the housing part 8 is configured as a mixing stage 9 ( Fig. 5 , Fig. 6 ) forms.
• the intermittent projection 5, which is designed as retaining claws 6, has a triangular edge 13 in profile.
• the retaining claws 6 are formed integrally with the front sieve 3.
• the housing part 8 has The sanitary insert 1 is connected via a thread 17, which is designed as an external thread, and by means of which the sanitary insert 1 can be screwed into a sanitary fitting 15 (not shown here).
• the thread 17 is not continuous but intermittent.
• a ventilation channel 16 is formed between the threaded parts, the function of which is to draw in air from outside the sanitary insert 1.
• a mixing stage 9 (not shown here) is formed in the sanitary insert 1, in which the air drawn in from outside and the flowing water are mixed. This is particularly advantageous for producing an attractive spray pattern and for economical, especially water-saving, use of water.
• Functional stage 2 can be configured as disassembler stage 18 or as a reduction stage (not shown here).
• Fig. 2 shows the sanitary insert 1 from Fig. 1 in a top view.
• the intermittent projection 5, which is designed as retaining claws 6, is visible.
• the retaining claws 6 fix and hold the sealing element 4 in the axial and radial direction.
• the sealing element 4 can be placed on the sanitary insert 1 in a mounted assembly position.
• the retaining claws 6 have triangular edges 13 ( Fig. 3 , Fig. 5 ), over which the sealing element 4 can be placed.
• the ventilation channels 16 are also visible, which connect to the thread 17 ( Fig. 1 ) interrupt.
• Fig. 3 shows the sanitary insert 1 from Fig. 1 in a side view.
• the retaining claws 6 are curved and prevent the sealing element 4 from slipping in the radial and axial direction during flow.
• Fig. 3 Figure 16 also shows the ventilation channel 16, which interrupts the thread 17.
• the upper part of the ventilation channel 16 has... an opening is formed which leads into the interior of the sanitary insert 1, in particular into the mixing stage 9 (not shown here).
• FIG. 4 Figure 1 shows the sanitary insert 1 in a bottom view.
• a drain structure 7 is visible through which the water exits the sanitary insert 1.
• the drain structure 7 is part of the housing section 8.
• the two ventilation channels 16 are also visible.
• the functional stage 2 is visible, which in this embodiment is designed as a disassembly stage 18.
• Fig. 5 shows a section through the sanitary insert 1 made of Fig. 1 in a side view.
• the front screen 3 has a stub 19 on which it rests against the functional stage 2, which is designed as a separating stage 18.
• the sealing element 4 has a rectangular cross-section 10.
• the sealing element 4 covers a joint 14 between the functional stage 2 and the housing part 8.
• the retaining claws 6 are integrally formed with the front screen 3 and are arranged on the inflow side.
• a mixing stage 9 is formed in a central part of the sanitary insert 1, in which the flowing water is mixed with the intake air. The air is supplied through the ventilation channels 16 ( Fig. 3 ) sucked in.
• Fig. 6 shows a section through the sanitary insert 1 made of Fig. 1 in a perspective view.
• the ramp structure 7 is designed as part of the housing 8.
• the functional stage 2 is designed as a disassembly stage 18.
• the housing 8 also has a thread 17 with which it can be screwed into a sanitary fitting.
• FIG. 7 Figure 1 shows a further sanitary insert 1 according to the invention in a perspective view.
• the difference to the previous sanitary insert 1 ( Fig. 1 The key point is that the 5-point advantage is formed all the way around here.
• a circumferential projection 5 is formed on the pre-filter screen 3 and prevents axial and radial slippage of the sealing element 4 in the flowing water. The projection enables a force-fit hold of the sealing element 4.
• the sealing element 4 can be installed in the assembled position of the sanitary insert 1.
• the mesh size of the pre-filter screen 3 is smaller than the clear opening of a subsequent constriction, particularly of functional stage 2.
• the circumferential projection 5 is designed as a triangular edge 13, and therefore allows the sealing element 4 to be installed in the assembled position of the sanitary insert 1.
• FIG. 15 Another housing part 8a is visible, which has a thread 17. Additionally, a tool engagement surface 20 is formed, against which pliers or a similar device can rest, allowing the sanitary insert 1 to be screwed into a sanitary fitting 15. Fig. 15 ) is made possible.
• Fig. 8 shows the sanitary insert 1 from Fig. 7 in a top view.
• the circumferential projection 5 is visible, as is the circumferential sealing element 4.
• the further housing part 8a is visible at the outer edge.
• Fig. 9 shows the sanitary insert 1 from Fig. 7 In a side view, the thread 17 and the tool engagement surface 20 are visible.
• the front screen 3 has a dome-like structure.
• Fig. 10 shows the sanitary insert 1 from Fig. 7 in a view from below.
• the outlet structure 7, which is part of the housing part 8, is visible.
• the housing part 8 has two interlocking sleeves 11, which are connected to each other by webs 12. Ventilation channels 16 are formed between the two sleeves 11 and the webs 12, which allow air to be drawn in. The air is drawn into the interior of the sanitary insert 1, where it is in a Mixing stage 9, which is part of the housing part 8, with which flowing water is mixed.
• Fig. 11 shows a section through the sanitary insert 1 made of Fig. 7 in a side view.
• the sealing element 4 has a rectangular cross-section 10. Alternatively, the sealing element 4 can have a circular cross-section 10.
• the positive locking of the sealing element 4 is achieved by the circumferential projection 5.
• the front screen 3 fixes and holds the sealing element 4 radially and additionally or alternatively axially.
• the outlet structure 7 is formed on the housing part 8.
• the housing part 8 is inserted into the further housing part 8a.
• the further housing part 8a has a thread 17 with which it can be connected to a sanitary fitting 15 ( Fig. 15 ) is screwable.
• the sealing element 4 provides a seal against the housing part 8 and against the functional stage 2.
• the functional stage 2 is attached to the housing part 8.
• the housing part 8 also forms a mixing stage 9.
• the housing part 8 has two interlocking sleeves 11, which are connected by webs 12 ( Fig. 13 , Fig. 14 are connected to each other.
• Fig. 12 shows a section through the sanitary insert 1 made of Fig. 7 in a perspective view.
• the circumferential projection 5 is designed as a triangular edge 13 and allows the sealing element 4 to be placed over it when the sanitary insert 1 is installed.
• Ventilation channels 16 are formed between the outlet structure 7 and the further housing part 8a, which allow air to be drawn in.
• the sealing element 4 covers a joint 14 between the functional stage 2 and the housing part 8.
• the joint 14 is referred to here as a small gap.
• the front screen 3 has a butt 19 against which it rests against the functional stage 2.
• FIG. 13 Figure 1 shows a perspective view of housing part 8.
• Housing part 8 has two interlocking sleeves 11 connected by webs 12.
• a discharge structure 7 is formed on the outflow side.
• Ventilation channels 16 are formed between the interlocking sleeves 11 and between the webs 12, allowing air to be drawn in.
• a mixing stage 9 is formed in which the flowing water and air mix. This is advantageous for the spray pattern and for the economical, and in particular water-saving, use of water.
• FIG. 14 Figure 8 shows a top view of the housing part 8.
• the webs 12 and the ventilation channels 16 are visible.
• the outlet structure 7 has honeycomb-shaped, in particular hexagonal, holes.
• FIG. 15 Figure 1 shows a cross-sectional view through a sanitary fitting 15 with a sanitary insert 1 according to the invention.
• the elements have already been described above, so a duplication of the description is omitted here. Reference is hereby made to the above description.
• the flow direction is indicated by the arrow Pfl.
• a sanitary insert 1 for use in a fitting outlet comprises a functional stage 2, a pre-screen 3 and a sealing element 4, wherein the pre-screen 3 is designed to provide a positive locking hold for the sealing element 4 and wherein the sealing element 4 can be placed on top in an assembled assembly position of the sanitary insert 1.

Landscapes

• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Hydrology & Water Resources (AREA)
• Public Health (AREA)
• Water Supply & Treatment (AREA)
• Filtration Of Liquid (AREA)
• Sanitary Device For Flush Toilet (AREA)

Priority Applications (2)

Applications Claiming Priority (1)

Publications (1)

Family

ID=92424149

Family Applications (1)

Country Status (2)

Citations (4)

• 2024
  • 2024-08-14 EP EP24194541.9A patent/EP4696844A1/fr active Pending
• 2025
  • 2025-08-07 WO PCT/EP2025/072833 patent/WO2026037733A1/fr active Pending

Patent Citations (4)

Also Published As

Similar Documents

Legal Events