Search

CN-117795449-B - Thermostatic mixing valve for hygienic purposes and modular assembly comprising one such mixing valve

CN117795449BCN 117795449 BCN117795449 BCN 117795449BCN-117795449-B

Abstract

A mixing valve (1) comprises a lower base plate (10), an intermediate base plate (20) and an upper base plate (30) stacked along an assembly axis (Z-Z), a thermostatic cartridge (40) and one or more flow members (50, 60) which are steerable from the upper surface of the upper base plate. The valve cartridge is provided with axial hot and cold water inlets and a mixed water outlet (43) transverse to the assembly axis. Each flow member has a mixed water inlet (51) and at least one mixed water outlet transverse to the assembly axis. The intermediate base plate defines ducts for supplying cold water (21) and hot water (22), which are connected to the hot and cold water inlet ducts (11, 12) of the lower base plate and to the hot and cold water inlets of the valve cartridge, respectively, said ducts being internally provided with check valves (71, 72), respectively. The upper surface of the intermediate base plate and the lower surface of the upper base plate together define a conduit for receiving the mixed water, the conduit extending transversely relative to the assembly axis to connect to the mixed water outlet of the valve cartridge and the mixed water outlet of the respective components.

Inventors

  • ROBIN GILLES
  • S. Markley

Assignees

  • 韦内特公司

Dates

Publication Date
20260508
Application Date
20220629
Priority Date
20210630

Claims (10)

  1. 1. A sanitary thermostatic mixing valve (1; 101) comprises: -a lower base plate (10), an intermediate base plate (20; 120) and an upper base plate (30; 130), the lower base plate (10), the intermediate base plate (20; 120) and the upper base plate (30; 130) being assembled one above the other along an assembly axis (Z-Z) and each having a lower surface and an upper surface axially opposite to each other such that the upper surface (10B) of the lower base plate (10) and the lower surface (20A) of the intermediate base plate axially abut each other and the upper surface (20B) of the intermediate base plate and the lower surface (30A) of the upper base plate axially abut each other, -A thermostatic cartridge (40), the thermostatic cartridge: Assembled to at least one of the lower, intermediate and upper base plates such that the thermostatic cartridge is steerable from the upper surface (30B) of the upper base plate (30), -Providing an axial cold water inlet (41) and a hot water inlet (42), and a mixed water outlet (43) transverse to the assembly axis (Z-Z), -A cold water flow (F40.1) suitable for mixing a cold water flow (F40.2) from a cold water inlet of the thermostatic cartridge and a hot water flow (F40.2) from a hot water inlet of the thermostatic cartridge, for forming a mixed water flow (F40.3) to a mixed water outlet of the thermostatic cartridge, and -Comprising a thermostatic regulation member (44) adapted to regulate the temperature of the mixed water flow by varying the respective flows of said cold water flow and said hot water flow, and -One or more flow members (50, 60; 150), said flow members: Assembled to at least one of the lower, intermediate and upper substrates such that one or each flow member is steerable from the upper surface of the upper substrate, -Each provided with a mixed water inlet (51, 61) and at least one mixed water outlet (52, 62) transverse to the assembly axis (Z-Z), and Each adapted to control the flow of a mixed water flow (F50, F60) through the flow member between a mixed water inlet and at least one mixed water outlet of the flow member, Wherein the lower base plate (10) defines a cold water inlet duct (11), a hot water inlet duct (12) and at least one mixed water return duct (13, 14), which all open onto an upper surface (10B) of the lower base plate, to which at least one mixed water outlet (52, 62) of the one or more flow members (50, 60; 150) is connected, Wherein the intermediate base plate (20; 120) defines a cold water delivery duct (21) and a hot water delivery duct (22), the cold water delivery duct and the hot water delivery duct: each connecting the lower surface (20A) and the upper surface (20B) of the intermediate substrate to each other, At the lower surface of the intermediate base plate, against the cold and hot water inlet pipes (11, 12), respectively, -A hot water inlet and a cold water inlet (41, 42) at the upper surface of the intermediate base plate, respectively against the thermostatic cartridge (40), and Each internally fitted with a check valve (71, 72), And wherein the upper surface of the intermediate base plate and the lower surface (30A) of the upper base plate (30; 130) together define a mixed water passage duct (31) extending longitudinally transversely to the assembly axis (Z-Z) such that at one of the two opposite longitudinal ends of the mixed water passage duct abuts the mixed water outlet (43) of the thermostatic valve cartridge (40) and at the other of the two opposite longitudinal ends of the mixed water passage duct abuts the mixed water inlet (51, 61) of the or each flow member (50, 60; 150).
  2. 2. A mixing valve according to claim 1, wherein the intermediate base plate (20; 120) is made of a plastic material.
  3. 3. Mixing valve according to claim 1 or 2, wherein the intermediate base plate (20; 120) is designed to be demouldable along the assembly axis (Z-Z).
  4. 4. Mixing valve according to claim 1 or 2, wherein the upper base plate (30; 130) is designed to be demouldable along the assembly axis (Z-Z).
  5. 5. The mixing valve according to claim 1 or 2, wherein the mixing water passing pipe (31) is formed to be axially recessed in a lower surface (30A) of the upper base plate (30; 130).
  6. 6. The mixing valve according to claim 1 or 2, wherein the mixing water passage pipe is formed to be axially recessed in an upper surface (20B) of the intermediate substrate (20; 120).
  7. 7. Mixing valve according to claim 1 or 2, wherein the cold and hot water delivery pipes (21, 22) extend parallel to the assembly axis (Z-Z) from a lower surface (20A) to the upper surface (20B) of the intermediate base plate (20; 120).
  8. 8. The mixing valve according to claim 1 or 2, wherein at least one mixed water outlet (52, 62) of the or each flow member (50, 60; 150) abuts a mixed water outlet conduit (23, 24) at an upper surface (20B) of the intermediate substrate (20; 120), the mixed water outlet conduit: defined by the intermediate substrate so as to connect the lower and upper surfaces of the intermediate substrate, -Extending parallel to the assembly axis (Z-Z) from the lower surface to the upper surface of the intermediate substrate, and -Abutting against said at least one mixed water return conduit (13, 14) at the lower surface of said intermediate substrate.
  9. 9. The mixing valve according to claim 1 or 2, wherein the upper base plate (30) defines a mounting opening (32, 33, 34): -assembling said thermostatic cartridge (40) and said one or more flow members (50, 60; 150) in said mounting opening, The mounting opening connects the lower and upper surfaces of the upper substrate to each other, -And the mounting opening extends parallel to the assembly axis (Z-Z) from the lower surface to the upper surface of the upper substrate.
  10. 10. A modular assembly for a sanitary thermostatic mixing valve comprising: Mixing valve (1) according to claim 1 or 2, the intermediate substrate (20), the upper substrate (30) and the one or more flow members (50, 60) of the mixing valve (1) forming a first intermediate substrate, a first upper substrate and one or more first flow members, respectively, -One or more second flow members (150) adapted to control the flow rate of a mixed water flow passing between the mixed water inlet and at least one mixed water outlet of the or each second flow member and which differ in number and/or type from the one or more first flow members (50, 60), and -A second intermediate substrate (120) and a second upper substrate (130), which can be assembled to the lower substrate (10) of the mixing valve instead of the first intermediate substrate (20) and the first upper substrate (30) by features specific to the assembly and connection of the second intermediate substrate and the second upper substrate with the one or more second flow members (150), and which are different from the first intermediate substrate and the first upper substrate, respectively.

Description

Thermostatic mixing valve for hygienic purposes and modular assembly comprising one such mixing valve Technical Field The application relates to a sanitary constant-temperature mixing valve. The application also relates to a modular assembly for a sanitary thermostatic mixing valve comprising such a mixing valve. Background Mixing valves for sanitary purposes, which are commonly used in sanitary facilities such as showers, are used to mix cold water and hot water supplied therein, thereby forming mixed water that is delivered to a user via one or more outlets of the mixing valve. When a mixing valve for sanitary purposes comprises a thermostatic assembly, known as a thermostatic valve, the thermostatic assembly is typically a valve cartridge adapted to regulate the temperature of the mixed water around a set point value set by a user by varying the respective flows of cold and hot water that are effectively mixed. The mixing valve then includes one or more flow members to which the mixed water exiting the thermostatic cartridge is delivered, and which allow a user to control or even regulate the flow of mixed water exiting the mixing valve. In order for water to flow within the mixing valve from the cold and hot water inlets to the mixed water outlet via the thermostatic cartridge and the flow member, the mixing valve includes a body, which is typically composed of a plurality of assembled parts, wherein the thermostatic cartridge and the flow member are mounted and define different water flow conduits. Thus, the body has a variable complexity water flow configuration that is suitable for the installation requirements of thermostatic cartridges, flow members and mixing valves in related sanitary installations. Thus, the body may be relatively bulky, which is problematic when it is desired to embed important components of the mixing valve into a partition such as a wall. Furthermore, once the number and/or type of flow components need to be modified, it is necessary to fully examine the subject's architecture, which is limiting and costly. EP 2775179 discloses an embodiment of such a mixing valve for hygienic purposes, which comprises a housing, a thermostatic cartridge and a flow member. Disclosure of Invention The object of the present application is to propose a new thermostatic mixing valve for hygienic purposes, which is particularly compact, practical and economical. To this end, the subject of the application is a sanitary thermostatic mixing valve comprising: A lower base plate, an intermediate base plate and an upper base plate, which are assembled one above the other along an assembly axis, and each of which has a lower surface and an upper surface axially opposite to each other such that the upper surface of the lower base plate and the lower surface of the intermediate base plate axially abut each other, and the upper surface of the intermediate base plate and the lower surface of the upper base plate axially abut each other, -A thermostatic cartridge, the thermostatic cartridge: Assembled to at least one of the lower, intermediate and upper base plates such that the thermostatic cartridge is manipulable from the upper surface of the upper base plate, Provided with an axial cold water inlet and a hot water inlet, and a mixed water outlet transverse to the assembly axis, -Adapted to mix a cold water flow from a cold water inlet of the thermostatic cartridge with a hot water flow from a hot water inlet of the thermostatic cartridge for forming a mixed water flow to a mixed water outlet of the thermostatic cartridge, and -Comprising thermostatic regulation means adapted to regulate the temperature of the mixed water flow by varying the respective flows of said cold water flow and said hot water flow, and -One or more flow members, said flow members: Assembled to at least one of the lower, intermediate and upper substrates such that one or each flow member is steerable from the upper surface of the upper substrate, -Each provided with a mixed water inlet and at least one mixed water outlet transverse to the assembly axis, and Each adapted to control the flow of a mixed water flow through the flow member between a mixed water inlet and at least one mixed water outlet of the flow member, Wherein the lower base plate defines a cold water inlet conduit, a hot water inlet conduit and at least one mixed water return conduit, the cold water inlet conduit, the hot water inlet conduit and the at least one mixed water return conduit all opening into an upper surface of the lower base plate, at least one mixed water outlet of the one or more flow members being connected to the at least one mixed water return conduit, Wherein the intermediate base plate defines a cold water delivery conduit and a hot water delivery conduit, the cold water delivery conduit and the hot water delivery conduit: each connecting the lower and upper surfaces of the intermediate substrate to each other, At the lower surface of the inter