EP4095322A1 - Soupape de vidange - Google Patents

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Publication number
EP4095322A1
EP4095322A1 EP22174306.5A EP22174306A EP4095322A1 EP 4095322 A1 EP4095322 A1 EP 4095322A1 EP 22174306 A EP22174306 A EP 22174306A EP 4095322 A1 EP4095322 A1 EP 4095322A1
Authority
EP
European Patent Office
Prior art keywords
channel
flow rate
rate regulator
overflow pipe
ring portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22174306.5A
Other languages
German (de)
English (en)
Inventor
Youpeng CHEN
Congxian Huang
Shutuan LIU
Yunqing ZANG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kohler China Investment Co Ltd
Original Assignee
Kohler China Investment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202121137590.4U external-priority patent/CN215253240U/zh
Application filed by Kohler China Investment Co Ltd filed Critical Kohler China Investment Co Ltd
Publication of EP4095322A1 publication Critical patent/EP4095322A1/fr
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
    • E03D1/34—Flushing valves for outlets; Arrangement of outlet valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/02—High-level flushing systems
    • E03D1/14—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves
    • E03D1/142—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves in cisterns with flushing valves

Definitions

  • the present disclosure relates to the technical field of water tank of toilet, and more particularly, to a drain valve.
  • a drain valve is mounted in a water tank of a toilet.
  • An overflow pipe is arranged in the drain valve, and the overflow pipe can be lifted or lowered to open or close a drainage channel in a valve seat.
  • a predetermined amount of water may be drained from the water tank to meet a requirement of flushing the toilet.
  • a spraying orifice in the toilet is fixed. If a drainage speed of the drain valve is fast, a flow rate of water sprayed by the toilet is also fast, thus a good flushing effect can be obtained. On the contrary, if the drainage speed of the drain valve is slow, the flow rate of water sprayed by the toilet is also slow, thus the flushing effect is poor.
  • the drainage speed of the drain valve cannot be regulated, and if a user needs to regulate the drainage speed, the user needs to replace different models of drain valves.
  • the present disclosure aims to provide a drain valve, in which a flow rate regulator is arranged at a lower end of an overflow pipe to define a water flow channel allowing a water flow to pass through between the flow rate regulator and a channel water inlet.
  • a flow rate regulator is arranged at a lower end of an overflow pipe to define a water flow channel allowing a water flow to pass through between the flow rate regulator and a channel water inlet.
  • a drain valve comprising a valve body, a valve seat mounted below the valve body, and an overflow pipe located in the valve body and capable of moving up and down.
  • the valve seat is provided with a drainage channel
  • the overflow pipe is provided with a blocking element
  • the overflow pipe is also provided with a flow rate regulator below the blocking element.
  • the overflow pipe has an initial state and a raised state and is capable of switching a state between the initial state and the raised state.
  • the blocking element seals a channel water inlet of the drainage channel, and the flow rate regulator is located in the drainage channel.
  • the blocking element leaves the channel water inlet
  • the flow rate regulator is at least partially or completely located above the channel water inlet
  • a water flow channel is formed between the flow rate regulator and the channel water inlet.
  • a lower end of the overflow pipe is provided with a connector, and the flow rate regulator is clamped with the connector.
  • the connector is provided with a clamping groove
  • the flow rate regulator is provided with a clamping claw
  • the clamping claw is clamped with the clamping groove
  • the clamping groove is an annular clamping groove
  • a plurality of clamping claws are arranged on the flow rate regulator at intervals along a circumferential direction, and each clamping claw is clamped with the annular clamping groove.
  • the flow rate regulator comprises an outer ring portion and an inner ring portion connected to the outer ring portion, and the clamping claw is arranged on the inner ring portion;
  • the water flow channel is formed between the outer ring portion and the water inlet of the channel.
  • a top surface of the outer ring portion is higher than a top surface of the clamping claw, and the top surface of the outer ring portion is contacted with a bottom portion of the overflow pipe.
  • the flow rate regulator is a rubber part.
  • the blocking element is a rubber gasket.
  • a sealing ring is arranged in the drainage channel.
  • the flow rate regulator comprises a plurality of replacement parts.
  • the present disclosure has the following beneficial effects.
  • the flow rate regulator is arranged at a lower end of the overflow pipe to define the water flow channel allowing a water flow to pass through between the flow rate regulator and the channel water inlet.
  • an amount of water entering the drainage channel from the channel water inlet in unit time can be defined, and thus a drainage speed can be controlled. If a user needs to change the drainage speed, the user only needs to replace different models of flow rate regulators, without replacing the whole drain valve to save costs.
  • the flow rate regulator is mounted in a clamping mode, and thus it is convenient to replace the flow rate regulator.
  • the flow rate regulator is equipped with different models of replacement parts, and thus the user may replace different models of flow rate regulators as required to meet the user's demand for a drainage speed.
  • FIG. 1 is a perspective view of a drain valve provided by an embodiment of the present disclosure.
  • FIG. 2 is a cross-sectional view of the drain valve provided by the embodiment of the present disclosure.
  • FIG. 3 is an exploded view of an overflow pipe and a valve seat.
  • FIG. 6 is a perspective view of one type of flow rate regulator.
  • FIG. 7 is a perspective view of another type of flow rate regulator.
  • FIG. 8 is a schematic diagram of forming a water flow channel between the flow rate regulator and a channel water inlet when the flow rate regulator shown in FIG. 6 is adopted.
  • FIG. 9 is a schematic diagram of forming the water flow channel between the flow rate regulator and the channel water inlet when the flow rate regulator shown in FIG. 7 is adopted.
  • a drain valve provided by an embodiment of the present disclosure comprises a valve body 1, a valve seat 2 mounted below the valve body 1, and an overflow pipe 3 located in the valve body 1 and capable of moving up and down.
  • the valve seat 2 is provided with a drainage channel 21, and the overflow pipe 3 is provided with a blocking element 4.
  • the overflow pipe 3 is also provided with a flow rate regulator 5 below the blocking element 4.
  • the overflow pipe 3 has an initial state and a raised state and is capable of switching a state between the initial state and the raised state.
  • the blocking element 4 seals a channel water inlet 211 of the drainage channel 21, and the flow rate regulator 5 is located in the drainage channel 21.
  • the blocking element 4 leaves the channel water inlet 211, the flow rate regulator 5 is at least partially or completely located above the channel water inlet 211, and a water flow channel 20 is formed between the flow rate regulator 5 and the channel water inlet 211.
  • the drain valve provided by the present disclosure is used in a water tank of a toilet.
  • the drain valve comprises the valve body 1, the valve seat 2, the overflow pipe 3, etc.
  • the valve seat 2 is connected to a lower end of the valve body 1.
  • the valve seat 2 is provided with the drainage channel 21 for draining water in the water tank.
  • the overflow pipe 3 is assembled in the valve body 1, and capable of moving up and down relative to the valve body 1.
  • a lower portion of the overflow pipe 3 is provided with the blocking element 4.
  • the blocking element 4 covers the channel water inlet 211 of the drainage channel 21, and thus the drainage channel 21 is closed.
  • the overflow pipe 3 is lifted up, the blocking element 4 leaves the channel water inlet 211, and thus water may be drained from the drainage channel 21.
  • the drain valve may be a connecting-rod drain valve or a pneumatic drain valve. A structure and lifting and lowering modes of related overflow pipe have been omitted herein.
  • the flow rate regulator 5 is arranged at the lower end of the overflow pipe 3, and the flow rate regulator 5 is located below the blocking element 4.
  • the flow rate regulator 5 is completely located in the drainage channel 21.
  • the flow rate regulator 5 When the overflow pipe 3 is in the raised state, the flow rate regulator 5 is partially or completely located above the channel water inlet 211, and thus the water flow channel 20 is defined and formed between the flow rate regulator 5 and the channel water inlet 211.
  • Water in the water tank enters the channel water inlet 211 through the water flow channel 20 and then is drained through the drainage channel 21.
  • the water flow channel 20 determines the amount of water entering the drainage channel 21 from the channel water inlet 211 in unit time, so that the drainage speed can be controlled. If an opening area of the water flow channel 20 is large, an amount of flowing water in unit time is large, and the drainage speed is fast. If the opening area of the water flow channel 20 is small, the amount of flowing water in unit time is small, and the drainage speed is slow. If a user needs to change the drainage speed, the user only needs to replace different models of flow rate regulators 5, without replacing the whole drain valve. Thus, the costs for the replacement may be saved.
  • FIG. 4 is a cross-sectional view of the overflow pipe, a blocking element, a connector and a flow rate regulator assembled together.
  • a lower end of the overflow pipe 3 is provided with a connector 6, and the flow rate regulator 5 is clamped with the connector 6.
  • the connector 6 is assembled at the lower end of the overflow pipe 3.
  • the connector 6 may be assembled at the lower end of the overflow pipe 3 by a pin or connected to the lower end of the overflow pipe 3 through a thread.
  • the flow rate regulator 5 is clamped with the connector 6 through a clamping structure to facilitate disassembly and assembly of the flow rate regulator 5.
  • the clamping structure may be a clamping groove or a clamping claw, etc.
  • the connector 6 is provided with the clamping groove 61
  • the flow rate regulator 5 is provided with the clamping claw 53
  • the clamping claw 53 is clamped with the clamping groove 61.
  • the clamping groove 61 is arranged on an outer peripheral surface of the connector 6, and the clamping claw 53 is integrally arranged on the flow rate regulator 5. During assembly, the clamping claw 53 is clamped into the clamping groove 61. During disassembly, the clamping claw 53 is removed from the clamping groove 61.
  • the clamping groove 61 is an annular clamping groove
  • a plurality of clamping claws 53 are arranged on the flow rate regulator 5 at intervals along a circumferential direction of the flow rate regulator 5, and each clamping claw 53 is clamped with the annular clamping groove 61.
  • the connection stability between the flow rate regulator 5 and the connector 6 may be improved.
  • the flow rate regulator 5 comprises an outer ring portion 51 and an inner ring portion 52 connected in the outer ring portion 51, and the clamping claw 53 is arranged on the inner ring portion 52.
  • the water flow channel 20 is formed between the outer ring portion 51 and the channel water inlet 211.
  • the flow rate regulator 5 has a two-layer structure including an inner layer and an outer layer, the outer ring portion 51 is higher than the inner ring portion 52, a bottom portion of the outer ring portion 51 is connected with a bottom portion of the inner ring portion 52, and the clamping claw 53 is integrally arranged at a top portion of the inner ring portion 52.
  • the inner ring portion 52 mainly bears an acting force produced when the clamping claw 53 is clamped.
  • the outer ring portion 51 is used for defining a contour of the water flow channel 20.
  • the water flow channel 20 is formed between the outer ring portion 51 and the channel water inlet 211.
  • a size and a shape of the water flow channel 20 may be changed by changing a size, a shape, and/or a contour of the outer ring portion 51.
  • a top surface of the outer ring portion 51 is higher than a top surface of the clamping claw 53, and the top surface of the outer ring portion 51 is contacted with a bottom portion of the overflow pipe 3.
  • a sealing effect to prevent water from entering a concave cavity between the inner ring portion 52 and the outer ring portion 51 may be achieved.
  • the flow rate regulator 5 is a rubber part with a good elasticity, and thus it is convenient to assembly and disassembly the flow rate regulator 5.
  • the blocking element 4 is a rubber gasket with a good elasticity, and thus a good sealing effect may be obtained.
  • a sealing ring 7 is arranged in the drainage channel 21.
  • the flow rate regulator 5 is located in the sealing ring 7, and the blocking element 4 is hermetically contacted with a top portion of the sealing ring 7.
  • a sealing performance may be improved when the drain valve is closed.
  • FIG. 5 is a schematic diagram of four types of replacement parts of the flow rate regulator.
  • the flow rate regulator 5 comprises a plurality of replacement parts, such as a replacement part 5A, a replacement part 5B, a replacement part 5C, and a replacement part 5D.
  • the replacement part 5A, the replacement part 5B, the replacement part 5C, and the replacement part 5D are different models of flow rate regulators 5 with different radius and heights and may respectively define and form different sizes of water flow channels 20 with the channel water inlet 211. Therefore, a gap between the flow rate regulator 5 and the channel water inlet 211 is changed to finally regulate a flow rate of the flushing water.
  • the user may replace different models of replacement parts as required to meet the user's demand for a drainage speed.
  • FIG. 10 is a flow chart of a method for controlling water to drain from a water tank by using a drain valve according to one embodiment of the present disclosure.
  • the drain valve may be a valve as discussed above.
  • the drain valve may be controlled by a processor configured to perform an operation, function, or the like as described in the present disclosure.
  • a user may select a flow rate regulator 5 comprising a replacement part according to the user's demand for a drainage speed.
  • the user may connect the selected flow rate regulator 5 to the overflow pipe 3. Specifically, the clamping claw 53 of the selected flow rate regulator 5 is clamped with the clamping groove 61 of the connector 6 assembled at the lower end of the overflow pipe 3.
  • the processor may set the overflow pipe 3 in the initial state. Specifically, the processor may drive the overflow pipe 3 to move down relative to the valve body 1 so that the blocking element 4 seals the channel water inlet 211 of the drainage channel 21 and the flow rate regulator 5 is located in the drainage channel 21. Thus, the drainage channel 21 is closed to prevent the water in the water tank from entering the drainage channel 21.
  • the processor may determine whether to open the drainage channel 21. For example, when the processor receives a flushing command from the user, the processor may determine that the drainage channel 21 should be opened.
  • the processor may switch the overflow pipe 3 from the initial state to the raised state. Specifically, the processor may drive the overflow pipe 3 to move up relative to the valve body 1 so that the blocking element 4 leaves the channel water inlet 211. Therefore, the flow rate regulator 5 is partially or completely located above the channel water inlet 211, and the water flow channel 20 is formed between the flow rate regulator 5 and the channel water inlet 211. Thus, the drainage channel 21 is opened to allow the water in the water tank to enter the drainage channel 21 and then a toilet bowl.
  • the method for controlling the water to drain from the water tank by using the drain valve returns to S103 so as to maintain the initial state of the overflow pipe 3.
EP22174306.5A 2021-05-25 2022-05-19 Soupape de vidange Pending EP4095322A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202121137590.4U CN215253240U (zh) 2021-05-25 2021-05-25 一种排水阀
US17/747,258 US20220381020A1 (en) 2021-05-25 2022-05-18 Drain valve

Publications (1)

Publication Number Publication Date
EP4095322A1 true EP4095322A1 (fr) 2022-11-30

Family

ID=81749421

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22174306.5A Pending EP4095322A1 (fr) 2021-05-25 2022-05-19 Soupape de vidange

Country Status (1)

Country Link
EP (1) EP4095322A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1854926A1 (fr) * 2006-05-11 2007-11-14 Geberit Technik Ag Dispositif d'écoulement pour réservoir de chasse d'eau
EP3128089A1 (fr) * 2015-08-05 2017-02-08 MEPA- Pauli und Menden GmbH Système de chasse d'eau à débit de rinçage réglable

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1854926A1 (fr) * 2006-05-11 2007-11-14 Geberit Technik Ag Dispositif d'écoulement pour réservoir de chasse d'eau
EP3128089A1 (fr) * 2015-08-05 2017-02-08 MEPA- Pauli und Menden GmbH Système de chasse d'eau à débit de rinçage réglable

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