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
  • E03C1/04—Water-basin installations specially adapted to wash-basins or baths
  • E03C1/0404—Constructional or functional features of the spout
• • 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
  • E03C1/04—Water-basin installations specially adapted to wash-basins or baths
  • E03C1/041—Water-basin installations specially adapted to wash-basins or baths having provisions against scalding, e.g. temperature limiting devices, external covers
• • 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
  • E03C1/04—Water-basin installations specially adapted to wash-basins or baths
  • E03C1/0411—Taps specially designed for dispensing boiling water

Definitions

• the present invention relates to a liquid discharge device, particularly a liquid discharge device for co-discharge of a normal temperature liquid and a very warm liquid; the liquid discharge device may be a water tap, a shower or the like. Background technique
• liquid discharge devices In the art, it is quite common for liquids of different temperatures to share a liquid outlet nozzle.
• a common problem with these liquid discharge devices is that the very warm liquid makes the temperature of the surface of the liquid discharge device abnormal, that is, overheated or too cold, so that the parts requiring manual operation cannot be directly operated by hand, and may even cause the user. Bad consequences such as burns, frostbite.
• These liquid discharge devices include, for example, a head of a faucet, a head of a rotatable faucet, and the like.
• the present invention adopts a technical solution to provide a liquid discharge device including a liquid passage;
• the liquid passage includes one or more inner tubes, an outer tube wrapped around the inner tube and spaced apart from the inner tube,
• Each of the inner tubes and the outer tube has a common outlet port, and a flow restriction device for restricting the flow of liquid in the inner tube to the outer tube is provided at the common outlet port.
• the outer tube at least partially encloses the inner tube, and it is particularly preferred that the inner tube is wrapped by the outer tube at least at a portion adjacent to the flow restricting device.
• the flow restricting device includes an inner tube connecting port communicating with the inner tube, an outer tube connecting port communicating with the outer tube, and a liquid outlet port connecting port communicating with the common outlet port.
• a one-way valve is provided at the outer tube connection port for preventing liquid in the inner tube from flowing into the outer tube through the outer tube connection port.
• the one-way valve is in an open state when the liquid in the outer tube flows out, and is in a closed state when no liquid flows out of the outer tube. Further, the unidirectional wide door is also in an open state when the liquid in the outer tube and the liquid in the inner tube simultaneously flow out.
• the one-way valve controls the range of closing, opening and opening of the one-way valve by the flow pressure. Moreover, the one-way valve further controls the range in which the one-way valve opens by its own resilient material or an additional resilient member.
• the one-way valve can also close the one-way valve by its own elastic material or an additional elastic member.
• the liquid discharge device of the present invention effectively prevents the flow of the liquid in the inner tube into the outer tube by its unique flow restriction device, thereby enabling the user to safely and reliably operate the liquid discharge device.
• FIG. 1 is a schematic view showing the entire structure of a liquid discharging device of the present invention, partially shown in a sectional view;
• Figure 2 is a cross-sectional view of the flow restricting device of the present invention.
• FIG. 3 is a schematic view of the liquid discharge device of the present invention applied to both hot and cold water taps. detailed description
• FIG. 1 is a schematic view showing the entire structure of a liquid discharging device of the present invention.
• the liquid discharge device includes a liquid passage; the liquid passage further includes an inner tube 1 and an outer tube 2, and the inner tube 1 is disposed inside the outer tube 2 and spaced apart from the outer tube 2.
• a very warm liquid is transported in the inner tube 1, and the user cannot directly contact the inner tube 1; the normal temperature liquid is transported in the outer tube 2, and the outer wall of the outer tube 2 forms an operating surface of the liquid discharge device, and the user can directly contact the outer surface. Outside of tube 2 Wall and operate the dispenser.
• Flow restricting means 3 are provided on the common discharge port 10 of the inner tube 1 and the outer tube 2 for restricting the flow of the liquid in the inner tube 1 to the outer tube 2. If the liquid in the inner tube 1 flows into the outer tube 2, the temperature of the very warm liquid in the inner tube 1 affects the temperature of the operating surface of the liquid discharging device, thereby causing the user to operate normally; therefore, using the present invention
• the flow restriction device 3 effectively avoids the occurrence of such a phenomenon.
• the inner tube 1 is wrapped at least partially, for example by a portion close to the flow restriction device 3, by the outer tube 2.
• the inner tube 1 may be one or more, and correspondingly, the common outlet nozzle 10 and the flow restriction device 3 may be provided in the same number as the inner tube 1 to Simultaneous security operations for multiple users.
• the outer tube 2 may be one or more, and a corresponding number of inner tubes 1, a common liquid outlet port 10, and a flow restricting device 3 are provided as needed.
• the inner tube 1 and the outer tube 2 may also be supplied with a normal temperature liquid, wherein the normal temperature liquid in the inner tube 1 and the outer tube 2 may also be a normal temperature liquid of different compositions.
• This solution can be used in the laboratory.
• Figure 2 shows a cross-sectional view of the flow restricting device of the present invention.
• the inner tube connection port 5 of the flow restriction device 3 communicating with the inner tube 1
• the outer tube connection port 6 communicating with the outer tube 2
• the outlet port connection port 4 communicating with the common outlet port 10
• a one-way valve 7 for preventing liquid from flowing into the outer tube through the outer tube connection port 6 is provided at the outer tube connection port 6.
• the one-way valve 7 When the liquid in the outer tube 2 flows out, the one-way valve 7 is in an open state. When the liquid in the outer tube 2 and the liquid in the inner tube 1 simultaneously flow out, the one-way valve 7 is still in an open state; at this time, the one-way valve 7 controls the opening range of the one-way valve by the flow pressure, for example, The flow pressure in the tube 2 is always kept larger than the flow pressure in the inner tube 1, so that the one-way valve 7 is kept open and the liquid in the inner tube 1 is prevented from flowing into the outer tube 2.
• the flow pressure in the inner tube 1 and/or the outer tube 2 can be appropriately adjusted to control the very warm liquid and Displacement of liquid at room temperature.
• the one-way valve 7 can further control the opening range of the one-way valve by its own elastic material or an additional elastic member.
• the one-way valve 7 When no liquid flows out of the outer tube 2 and the liquid in the inner tube 1 flows out, the one-way valve 7 is in a closed state, that is, the liquid in the inner tube 1 is prevented from flowing into the outer tube 2.
• the one-way valve 7 can close the one-way valve by the flow pressure; the one-way valve can also be closed by its own elastic material or an additional elastic member.
• FIG. 3 is a schematic view of the liquid discharge device of the present invention applied to both hot and cold water taps. among them.
• the inner tube 1 is an open water pipe
• the outer pipe 2 is a normal temperature water pipe
• a flow restriction device 3 is provided at the common discharge port 10 of the open water pipe and the normal temperature water pipe.
• the flow restricting device 3 can prevent the hot water in the open water pipe from flowing to the normal temperature water pipe, and can ensure that the surface temperature of the faucet is not affected by the boiling water temperature, thereby preventing the user from being burnt.

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)
• Temperature-Responsive Valves (AREA)
• Devices For Dispensing Beverages (AREA)
• Domestic Plumbing Installations (AREA)

Priority Applications (3)

Applications Claiming Priority (1)

Publications (1)

Family

ID=50977568

Family Applications (1)

Country Status (3)

Families Citing this family (3)

Citations (6)

Family Cites Families (6)

• 2012
  • 2012-12-20 EP EP12890424.0A patent/EP2937477B1/de active Active
  • 2012-12-20 WO PCT/CN2012/087065 patent/WO2014094281A1/zh active Application Filing
  • 2012-12-20 CN CN201280077936.3A patent/CN105026658B/zh active Active

Patent Citations (6)

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