CN113898046B - Toilet bowl drainage device capable of improving flushing performance - Google Patents

Toilet bowl drainage device capable of improving flushing performance Download PDF

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Publication number
CN113898046B
CN113898046B CN202111317646.9A CN202111317646A CN113898046B CN 113898046 B CN113898046 B CN 113898046B CN 202111317646 A CN202111317646 A CN 202111317646A CN 113898046 B CN113898046 B CN 113898046B
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China
Prior art keywords
valve
water
delay
channel
port
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Application number
CN202111317646.9A
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Chinese (zh)
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CN113898046A (en
Inventor
谢伟藩
陈雪瑜
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Guli Xiamen Technology Co Ltd
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Guli Xiamen Technology Co Ltd
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Priority to CN202111317646.9A priority Critical patent/CN113898046B/en
Publication of CN113898046A publication Critical patent/CN113898046A/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
    • 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
    • E03D1/33—Adaptations or arrangements of floats
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
    • E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
    • E03D11/06—Bowls with downwardly-extending flanges for the sake of flushing
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
    • E03D11/13—Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls, e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
    • E03D11/13—Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls, e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing
    • E03D11/17—Means for connecting the bowl to the flushing pipe
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/40—Protecting water resources

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

Abstract

The invention discloses a toilet bowl drainage device for improving flushing performance, which comprises: the toilet seat body is provided with a urinal and an injection port arranged at the bottom of the urinal; a toilet tank having a drain port; a flushing water channel which is upwards communicated with the water outlet and downwards communicated with the jet orifice; the drainage control valve is arranged at the lower part of the flushing water channel and is provided with a valve port for communicating the water outlet and the injection port, and in an initial state, the drainage control valve is in a state of closing the valve port so that water can be stored in a space between the valve port and the water outlet in the flushing water channel; the drainage control valve comprises a valve core and a delay mechanism for controlling the valve core to delay closing of the valve port; a start-up member which drives the spool; the buoyancy mechanism is arranged in a floating position under the initial state, so that the sealing disc of the buoyancy mechanism opens the water outlet, and when the water level of the toilet water tank drops to a preset height, the buoyancy mechanism falls down and drives the sealing disc to close the water outlet. The scheme can greatly improve the flushing performance of the closestool and has a simple structure.

Description

Toilet bowl drainage device capable of improving flushing performance
Technical Field
The invention relates to a toilet drainage device for improving flushing performance.
Background
As the need for toilet cleaning capability continues to increase, those skilled in the art are continually improving the flushing performance of toilets. At present, some prior arts adopt to carry out quick flushing through the water flow velocity of the toilet flushing water when increasing the size of the outlet of the toilet water tank to improve the outlet of the water discharge valve and open the outlet, thereby improving the flushing performance of the toilet, but in this way, the valve block area for closing the outlet on the water discharge valve is larger, so the valve block is also larger by the water pressure in the toilet water tank, the starting force value for opening the water discharge valve in the toilet water tank is larger, and the use experience is poor. In addition, the water in the flushing water channel is fully filled after the flushing is finished by using the action of atmospheric pressure in the prior art, so that the influence of blocking of air in the flushing water channel on flushing water flow at the beginning of each flushing is avoided.
Disclosure of Invention
In view of the above, the present invention aims to provide a toilet drain device which can not only greatly improve the flushing performance of a toilet, but also make the starting force value of a drain control valve smaller, and has a simple structure and a reliable effect.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a toilet drain comprising:
the toilet seat body is provided with a urinal and an injection port arranged at the bottom of the urinal;
a toilet tank having a drain port;
the flushing water channel is upwards communicated with the water outlet and downwards communicated with the jet orifice, the water outlet is the inlet of the flushing water channel, and the jet orifice is the outlet of the flushing water channel;
the drainage control valve is arranged at the lower part of the flushing water channel and is provided with a valve port used for communicating the water outlet and the injection port, and in an initial state, the drainage control valve is in a state of closing the valve port so that water can be stored in a space between the valve port and the water outlet in the flushing water channel; the drainage control valve comprises a valve core matched with the valve port and a delay mechanism for controlling the valve core to delay closing of the valve port;
The starting piece is used for controlling the opening of the drainage control valve by driving the valve core;
the buoyancy mechanism is arranged in the toilet water tank and comprises a floating barrel and a sealing disc, the floating barrel of the buoyancy mechanism is in a floating position in an initial state, so that the sealing disc opens the water outlet, and when the water level of the toilet water tank drops to a preset height, the floating barrel falls down and drives the sealing disc to close the water outlet.
According to the toilet drainage device, the drainage control valve is arranged at the lower part of the flushing water channel, the valve port of the drainage control valve is communicated with the inlet and the outlet of the flushing water channel, and in the initial state of no flushing, the drainage control valve is in the state of closing the valve port, so that water can be stored in the space between the valve port and the drainage outlet in the flushing water channel. The stored water cannot flow away from the valve port, so that air between the valve port and the water outlet in the flushing water channel can be discharged, on one hand, potential energy of water in the toilet water tank can be directly transmitted to the lower part of the flushing water channel, and compared with a toilet water discharging device without stored water in the flushing water channel in the prior art, the energy loss of water flow is greatly reduced, and the flushing performance of a toilet is effectively improved; on the other hand, the water discharge control valve is used for controlling the valve port to be closed, so that the flushing water channel can keep water storage. In addition, the present invention realizes that the drain control valve is opened for a predetermined period of time by providing a delay mechanism to ensure a sufficient drain time. In addition, the water outlet is closed when the water level of the toilet water tank is lowered to a preset height through the buoyancy mechanism, so that the water discharge amount is controlled to be approximately the same each time, and the stability of the water discharge amount is better.
In an alternative or preferred embodiment, when the sealing disk of the buoyancy mechanism closes the water outlet, and the sealing disk is positioned on one side of the flushing water channel and receives water pressure, under the buoyancy action of the float, the sealing disk receives a combined force upwards to move upwards and open the water outlet. So that in an initial state, the toilet tank is in communication with the flush water passage through the drain opening. Like this, after the washing is finished, the closestool water tank is moisturizing again, and this moisturizing can flow to the flushing water course through the outlet in order to moisturizing again to the flushing water course to need not to set up the passageway that is used for moisturizing to the flushing water course additionally, the structure is simpler. Meanwhile, when flushing, water in the toilet water tank can directly and quickly flow to the flushing water channel through the water outlet. In addition, the sealing disc is positioned on one side of the flushing water channel and is subjected to water pressure, so that the buoyancy mechanism is controlled to automatically float, and the water outlet is automatically opened.
In an alternative or preferred embodiment, the toilet further comprises a through-flow channel, wherein the through-flow channel enables the buoyancy mechanism to close the water outlet without completely closing the water outlet, and water in the toilet water tank can flow into the flushing water channel through the through-flow channel, so that the sealing disc is positioned on one side of the flushing water channel and subjected to water pressure, and the through-flow channel is arranged on the buoyancy mechanism or between the buoyancy mechanism and the water outlet; or when the buoyancy mechanism closes the water outlet, the water outlet is completely closed, and the flushing water channel is supplemented with water through a water supply channel, so that the sealing disc is positioned on one side of the flushing water channel and receives water pressure. According to the scheme, when the sealing disc is positioned at the position of closing the water outlet through the flow passage or the water supply passage, the sealing disc is positioned at one side of the flushing water passage and is subjected to water pressure, and the structure is simple and easy to realize. Make-up water is carried out to the flushing water channel through the overflow channel, need not to set up the additional passageway that is used for making up water to the flushing water channel, and the structure is simpler.
In an alternative or preferred embodiment, a water seal is formed at the bottom of the bowl, and the valve port and the jet are both positioned below the water level of the water seal. The design makes the water in the water seal enter between the valve port and the jet orifice, so that the flushing water channel between the valve port and the jet orifice is also full of water, and the whole flushing water channel is full of water, so that the effect is better.
In alternative or preferred embodiments, the valve port is disposed proximate the injection port. The valve port is close to the injection port, so that potential energy of water in the toilet water tank can be directly conducted to the injection port, and the design of the valve port and the installation of the water discharge control valve are facilitated.
The bottom of the flushing water channel is provided with a mounting cavity which is integrally formed with the toilet seat body and used for accommodating the drainage control valve, an inner end opening of the mounting cavity forms the jet orifice, and an outer end opening of the mounting cavity is used for the drainage control valve to penetrate out; the mounting cavity is communicated with the water outlet through a communication pipe, and the communication pipe is integrally formed with the toilet seat body or the communication pipe is independently formed and fixedly attached to the toilet seat body. The drainage control valve is arranged in the installation cavity, so that the structure is simple, and the installation is convenient.
In an alternative or preferred embodiment, the drain control valve further comprises a valve body having an inner cavity, a valve inlet communicating with the inner cavity and a valve outlet communicating with the inner cavity are provided on the valve body, the valve inlet communicates with the drain outlet through a communicating pipe, the valve outlet is in sealing communication with the injection port, the valve port is located in the inner cavity to communicate the valve inlet and the valve outlet, the inner cavity of the communicating pipe and the installation cavity together form the flushing water channel, and the valve core and the delay mechanism are provided on the valve body. In this scheme, drainage control valve simple to operate to, locate the time delay mechanism on the valve body of drainage control valve, the structure is simpler, compact.
In an alternative or preferred embodiment, the delay mechanism comprises a delay channel, a delay cavity communicated with the flushing water channel and an elastic piece for driving the valve core to reset to close the valve port, and the valve core compresses the delay cavity when moving towards the direction of opening the valve port so that water in the delay cavity flows into the flushing water channel through the delay channel; when the valve core moves towards the direction of closing the valve port under the action of the elastic force of the elastic piece, water in the flushing water channel slowly flows into the delay cavity through the delay channel, so that the valve core can be smoothly reset to close the valve port. In this scheme, delay mechanism simple structure, delay function are reliable.
In an alternative or preferred embodiment, the delay channel comprises an over-flow orifice provided on a wall of the delay chamber or on the valve core; and/or, the delay channel comprises an overflow gap, and the overflow gap is formed between the cavity wall of the delay cavity and the valve core. In this scheme, delay channel simple structure sets up easily.
In an alternative or preferred embodiment, the delay mechanism further comprises a one-way valve for controlling the size of the flow cross-sectional area of the delay channel, and when the valve core moves towards the direction of opening the valve port, the one-way valve controls the delay channel to be opened more so that water in the delay cavity flows into the flushing water channel more quickly through the delay channel; when the valve core moves towards the direction of closing the valve port, the one-way valve controls the delay channel to be opened less so that water in the flushing water channel flows into the delay cavity more slowly through the delay channel. In this scheme, when making the drive case through setting up the check valve, can open the valve port faster, more easily, it is better to use the experience.
In alternative or preferred embodiments, the delay channel is provided on a wall of the delay chamber and/or on the valve core and/or between the wall of the delay chamber and the valve core; the one-way valve is arranged on the cavity wall of the delay cavity and/or arranged on the valve core and/or arranged between the cavity wall of the delay cavity and the valve core.
In an alternative or preferred embodiment, the valve core comprises a valve rod, a valve plate connected to one end of the valve rod and a sealing gasket movably arranged on the valve plate, the valve plate is in sealing fit with the valve port through the sealing gasket, the other end of the valve rod penetrates out of the delay cavity, and the valve plate is also matched with the delay cavity to compress water in the delay cavity; the valve plate is provided with a through-flow small hole used for forming one part of the delay channel, an through-flow gap used for forming the other part of the delay channel is arranged between the cavity wall of the delay cavity and the valve core, when the valve core moves towards the direction of opening the valve port, the sealing gasket opens the through-flow small hole or the through-flow gap, at the moment, the through-flow cross-section area of the delay channel formed by the through-flow small hole and the through-flow gap together is larger, when the sealing gasket moves towards the direction of closing the valve port, the sealing gasket closes the through-flow small hole or the through-flow gap, at the moment, the through-flow cross-section area of the delay channel formed by the through-flow small hole and the through-flow gap together is smaller, and the sealing gasket forms the one-way valve; or,
The delay channel is only arranged on the valve core, a through hole is arranged on the valve plate, and a through groove is arranged on one side of the sealing gasket, which is opposite to the valve port; when the valve core moves towards the direction of opening the valve port, a gap is formed between the sealing gasket and the valve plate, the gap and the through hole form a time delay channel, when the sealing gasket moves towards the direction of closing the valve port, the sealing gasket is attached to the valve plate, the overflow groove and the through hole form the time delay channel, the overflow sectional area of the overflow groove is smaller than that of the gap, the overflow sectional area of the gap is smaller than that of the through hole, and the sealing gasket forms the one-way valve. In the scheme, the one-way valve is formed by the sealing gasket, a delay channel is formed between the sealing gasket and the valve plate, the design is ingenious, the structure is simple, and the delay function is reliable.
The water flushing device comprises a toilet seat body, and is characterized by further comprising a brush ring water channel, wherein an inlet of the brush ring water channel is communicated with the flushing water channel, an outlet of the brush ring water channel is communicated with an upper flushing port arranged on the upper part of the toilet seat body, a brush ring control valve for controlling the opening and closing of the inlet of the brush ring water channel is further included, and the starting piece is used for opening the brush ring control valve in a linkage manner. In this scheme, can utilize the water of closestool water tank to be used for supplying water to brushing the circle water course simultaneously, need not to set up the water source in addition and supply water to brushing the circle water course, the structure is simpler, compact.
The starting piece is linked with the drainage control valve through a first driving rope, and is linked with the brush ring control valve through a second driving rope.
The water outlet is provided with a fixed seat, the buoyancy mechanism can be arranged on the fixed seat in an up-and-down movable mode, and the height of the floating barrel relative to the fixed seat is adjustable when the floating barrel is in a floating position. Through the height of adjusting the float bowl, can adjust the displacement for the commonality of product is better.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is an exploded perspective view of a toilet drain according to an embodiment of the present invention;
FIG. 2 is a top view of a toilet drain according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of A-A of FIG. 2;
FIG. 4 is a perspective assembly structure of a buoyancy mechanism and a fixing base according to an embodiment of the present invention;
FIG. 5 is an exploded view of FIG. 4;
FIG. 6 is a cross-sectional view of FIG. 4;
FIG. 7 is a perspective view of a bucket according to an embodiment of the present invention;
FIG. 8 is an exploded perspective view of a drain control valve according to an embodiment of the present invention;
FIG. 9 is a cross-sectional view of a drain control valve according to an embodiment of the present invention (the state of the valve element during movement in the direction of opening the valve port, when the valve element has not yet moved into the delay chamber);
FIG. 10 is a cross-sectional view of a drain control valve according to an embodiment of the present invention (state during movement of the valve element in the direction to open the valve port, when the valve element is moved into and compresses the delay chamber);
fig. 11 is a sectional view of a drain control valve according to an embodiment of the present invention (a state in which a valve body is returned to a state in which it closes a valve port by an elastic member).
The reference numerals are:
10-a toilet seat; 11-a urinal; 111-jet ports; 112-water sealing; 113-upper rinse port;
20-a toilet tank; 21-a water outlet; 22-fixing seats;
30-a drain control valve; 31-a valve body; 311-lumen; 312-valve inlet; 313-valve outlet; 314-valve port; 315—a first valve body; 316-a second valve body; 32-valve core; 321-valve stem; 322-valve plate; 3221-an overflow aperture; 33-a delay mechanism; 331-delay channel; 332-delay cells; 333-an elastic member; 334-one-way valve (sealing gasket);
40-flushing the water channel; 41-a mounting cavity; 42-communicating pipe;
60-buoyancy mechanism; 61-floating barrel; 62-sealing disc; 621-flow-through channels (apertures); 63-screw;
70-corrugated sealing sleeve;
81-a first driving rope; 82-a second drive line;
90-brushing a ring water channel;
100-brush ring control valve;
h-overcurrent gap.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear and obvious, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 11, a toilet drainage device for improving flushing performance according to an embodiment of the present invention includes:
a toilet seat 10 having a bowl 11 and an injection port 111 provided at the bottom of the bowl 11;
a toilet tank 20 having a drain port 21;
a flushing water channel 40, the flushing water channel 40 is upwards communicated with the water outlet 21 and downwards communicated with the jet orifice 111, the water outlet 21 is the inlet of the flushing water channel 40, and the jet orifice 111 is the outlet of the flushing water channel 40;
a drain control valve 30 provided at a lower portion of the flushing water channel 40, the drain control valve 30 having a valve port 314 for communicating the water outlet 21 and the injection port 111, the drain control valve 30 being in a state of closing the valve port 314 in an initial state so that water can be stored in a space between the valve port 314 and the water outlet 21 in the flushing water channel 40; the drain control valve 30 includes a valve spool 22 cooperating with the valve port 314 and a delay mechanism 33 controlling the valve spool 32 to delay closing of the valve port 314;
An actuator (not shown) controls the opening of the drain control valve 30 by driving the spool 32.
The buoyancy mechanism 60 is arranged in the toilet water tank 20, the buoyancy mechanism 60 comprises a floating barrel 61 and a sealing disc 62, the floating barrel 61 of the buoyancy mechanism 60 is in a floating position in an initial state, so that the sealing disc 62 opens the water outlet 21, and when the water level of the toilet water tank 20 drops to a preset height, the floating barrel 61 falls and drives the sealing disc 62 to close the water outlet 21.
According to the utility model discloses a closestool drainage device, it is through setting up drain control valve 30 in the lower part of flushing water course 40 to make the valve port 314 intercommunication flushing water course 40 of drain control valve 30 the entry and the export, under the initial condition that does not wash, drain control valve 30 is in the state of closing valve port 314, can make in flushing water course 40 between valve port 314 and outlet 21 the space can have the water storage like this. The stored water cannot flow away from the valve port 314, so that air in the flushing water channel 40 between the valve port 314 and the water outlet 21 can be discharged, on the one hand, the potential energy of water in the toilet water tank 20 can be directly transmitted to the lower part of the flushing water channel 40, and compared with a toilet drainage device without stored water in the flushing water channel 40 in the prior art, the energy loss of water flow is greatly reduced, and the flushing performance of a toilet is effectively improved; on the other hand, because the water discharge control valve 30 is utilized to control the valve port 314 to be closed so that the flushing water channel 40 can keep 'stored water', compared with the water discharge device of a toilet which keeps 'stored water' by utilizing the atmospheric pressure in the prior art, the starting force value of the water discharge control valve 30 is opened and is not influenced by the atmospheric pressure, the downward pulling force of the stored water on the water discharge control valve 30 is not needed to be overcome, the starting force value is smaller, and the use experience is better. Further, the drain control valve 30 is opened for a predetermined period of time by providing the delay mechanism 33 to ensure a sufficient drain time. In addition, the buoyancy mechanism 60 closes the water outlet 21 when the water level of the toilet tank 20 drops to a predetermined height, so that the water discharge amount can be controlled to be substantially the same each time, and the stability of the water discharge amount is improved.
Referring to fig. 1, 2 and 3, in the present embodiment, the toilet seat 10 and the toilet tank 20 are integrally formed, and the toilet tank 20 is located on the top surface of the rear portion of the toilet seat 10, however, the toilet seat 10 and the toilet tank 20 may be separate structures.
In the present embodiment, when the sealing plate 62 of the buoyancy mechanism 60 closes the drain port 21, and when the sealing plate 62 is pressurized with water at one side of the flushing channel 40, the resultant force applied to the sealing plate 62 is moved upward by the buoyancy of the float 61 to open the drain port 21. The sealing disk 62 is positioned on one side of the flushing water channel 40 and is subjected to water pressure so as to control the buoyancy mechanism 60 to automatically float, and further the water outlet 21 is automatically opened, so that the design is ingenious, and the structure is simple and reliable. In the initial state, the toilet tank 20 is in communication with the flushing channel 40 through the drain port 21, so that water in the toilet tank 20 can directly and rapidly flow to the flushing channel 40 through the drain port 21 during flushing, thereby achieving a better effect.
In this embodiment, the water tank further includes a through-flow channel 621, the through-flow channel 621 makes the buoyancy mechanism 60 close the water outlet 21, so that the water in the toilet water tank 20 can flow into the flushing water channel 40 through the through-flow channel 621, so that the sealing disc 62 is positioned at one side of the flushing water channel 40 to receive water pressure, the through-flow channel 621 can be selectively arranged on the buoyancy mechanism 60 or between the buoyancy mechanism 60 and the water outlet 21, the through-flow channel 621 in this embodiment is formed by small holes 621 formed on the sealing disc 62 of the buoyancy mechanism 60, and of course, the through-flow channel 621 can also be formed by gaps between the outer peripheral wall of the sealing disc 62 and the inner wall of the water outlet 21; alternatively, in other embodiments, the buoyancy mechanism 60 may be used to completely close the drain 21 when the drain 21 is closed, and the flushing channel 40 may be replenished with water through a water supply channel (not shown), so that the sealing disk 62 may be subjected to water pressure on one side of the flushing channel 40. When the sealing disk 62 is positioned at the position of closing the water outlet 21 through the through-flow passage 621 or through the water supply passage, the sealing disk 62 is positioned at one side of the flushing water channel 40 to receive water pressure, and the structure is simple and easy to realize. The water is supplemented to the flushing water channel 40 through the through-flow channel 621, and an additional channel for supplementing water to the flushing water channel 40 is not needed, so that the structure is simpler.
Referring to fig. 3, in the present embodiment, a water seal 112 is formed at the bottom of the urinal 11, and both the valve port 314 and the injection port 111 are positioned below the water level of the water seal 112. The design makes the water in the water seal 112 enter between the valve port 314 and the injection port 111, so that the flushing water channel 40 between the valve port 314 and the injection port 111 is also full of water, and the whole flushing water channel 40 is full of water, so that the effect is better. Of course, in other embodiments, the valve port 314 may alternatively be located above the water level of the water seal 112, so that a small amount of air may exist between the valve port 314 and the injection port 111, which is less effective than the solution in which both the valve port 314 and the injection port 111 are located below the water level of the water seal 112.
With continued reference to FIG. 3, in this embodiment, the valve port 314 is disposed adjacent to the injection port 111. By bringing the valve port 314 close to the injection port 111, the potential energy of the water in the toilet tank 20 can be more directly conducted to the injection port 111, facilitating the design of the valve port 314 and the installation of the drain control valve 30.
The starting member may be a button, and a mounting hole (not shown) may be formed in the front wall of the toilet seat body 10, and the starting member is mounted in the mounting hole. Of course, the actuating member may be a handle, a knob, a slide button, or the like. The starting piece drives the valve core 32 through a driving assembly, and the driving assembly adopts a first driving rope 81 to link the valve core 32 of the drainage control valve 30.
In this embodiment, a mounting cavity 41 integrally formed with the toilet seat 20 and used for accommodating the drain control valve 30 is provided at the bottom of the flushing water channel 40, the inner opening of the mounting cavity 41 forms the injection port 111, and the outer opening of the mounting cavity 41 is provided for the drain control valve 30 to pass out; the installation cavity 41 is communicated with the water outlet 21 through a communication pipe 42, and the communication pipe 41 of the present embodiment is integrally formed with the toilet seat 10, however, in other embodiments, the communication pipe 41 may be independently formed with respect to the toilet seat 10 and fixedly attached to the toilet seat 20. By arranging the drain control valve 30 in the installation cavity 41, the structure is simple and the installation is convenient.
In this embodiment, the drain control valve 30 further includes a valve body 31 having an inner cavity 311, a valve inlet 312 communicating with the inner cavity 311 and a valve outlet 313 communicating with the inner cavity 311 are provided on the valve body 31, the valve inlet 312 communicates with the drain port 21 through a communication pipe 42, the valve outlet 313 is hermetically communicated with the injection port 111, a valve port 314 is provided in the inner cavity 311 to communicate the valve inlet 312 and the valve outlet 313, the inner cavity of the communication pipe 42 and the installation cavity 41 together form a flushing water channel 40, and the valve core 32 and the delay mechanism 33 are provided on the valve body 31. The delay mechanism 33 is arranged on the valve body 31 of the drain control valve 30, and the structure is simpler and more compact. In addition, in the present embodiment, the valve body 31 includes a first valve body 315 and a second valve body 316, and the first valve body 315 and the second valve body 316 are covered and fixed to enclose an inner cavity 311.
A corrugated sealing sleeve 70 is respectively sleeved on two sides of the valve inlet 312 on the valve body 31, and the corrugated sealing sleeve 70 enables the outer wall of the valve body 31 to be in sealing fit with the inner wall of the mounting cavity 41, so that water in the flushing water channel 40 is prevented from flowing out from a gap between the outer wall of the valve body 31 and the inner wall of the mounting cavity 41.
Specifically, in this embodiment, the delay mechanism 33 includes a delay channel 331, a delay chamber 332 that is communicated with the flushing channel 40, and an elastic member 333 that is used to drive the valve core 32 to reset to close the valve port 314, and when the valve core 32 moves towards the direction of opening the valve port 314, the delay chamber 332 is compressed so that water in the delay chamber 332 flows into the flushing channel 40 through the delay channel 331; when the valve core 32 moves towards the direction of closing the valve port 314 under the elastic force of the elastic member 333, water in the flushing water channel 40 slowly flows into the delay cavity 332 through the delay channel 331, so that the valve core 32 can be smoothly reset to close the valve port 314. The delay mechanism 33 has simple structure and reliable delay function. The elastic member 333 is specifically a compression spring.
In order to enable the valve core 32 to be opened faster and easier, the use experience is better, in this embodiment, the delay mechanism 33 further includes a one-way valve 334 for controlling the size of the flow cross-sectional area of the delay channel 331, and when the valve core 32 moves towards the direction of opening the valve core 314, the one-way valve 334 controls the delay channel 331 to be opened more so that the water in the delay cavity 332 flows into the flushing water channel 40 faster through the delay channel 331; when the valve core 32 moves towards the direction of closing the valve port 314, the check valve 334 controls the delay passage 331 to open smaller so that water in the flushing water channel 40 flows more slowly into the delay chamber 332 through the delay passage 331.
The delay passage 331 may be provided on a wall of the delay chamber 332 and/or on the spool 32 and/or between the wall of the delay chamber 332 and the spool 32. Specifically, in this embodiment, the delay channel 331 includes an over-current aperture 3221 and an over-current gap H, that is, the over-current aperture 3221 and the over-current gap H together form the delay channel 331, and the over-current aperture 3221 may be disposed on a cavity wall of the delay cavity 332 or disposed on the valve core 32, and the over-current gap H is formed between the cavity wall of the delay cavity 332 and the valve core 32. Specifically, in this embodiment, the through-flow apertures 3221 are formed in the valve core 32, and a plurality of through-flow apertures are provided at intervals.
In this embodiment, the check valve 334 is disposed on the valve core 32. Of course, in other embodiments, the check valve 334 may be disposed on the wall of the delay chamber 332, or between the wall of the delay chamber 332 and the valve core 32, as may be specifically desired.
Referring to fig. 8 to 10, in the present embodiment, the valve core 32 includes a valve rod 321, a valve plate 322 connected to one end of the valve rod 321, and a sealing gasket 334 movably disposed on the valve plate 322, and the sealing gasket 334 of the present embodiment is used to form the check valve 334. The valve plate 322 is in sealing fit with the valve port 314 through a sealing gasket 334, the other end of the valve rod 321 penetrates out of the delay cavity 332, and the valve plate 322 is also matched with the delay cavity 332 to compress water in the delay cavity 332. The delay channel 331 is simultaneously arranged on the valve core 32 and between the cavity wall of the delay cavity 332 and the valve core 32, the valve plate 322 is provided with a through-flow small hole 3221 for forming one part of the delay channel 331, an through-flow gap H for forming the other part of the delay channel 331 is arranged between the cavity wall of the delay cavity 332 and the valve core 32, when the valve core 32 moves towards the direction of opening the valve port 314, the sealing gasket 334 opens the through-flow small hole 3221 or the through-flow gap H, at the moment, the through-flow cross-section area of the delay channel 331 formed by the through-flow small hole 3221 and the through-flow gap H is larger, and when the sealing gasket 334 moves towards the direction of closing the valve port 314, the sealing gasket 334 closes the through-flow small hole 3221 or the through-flow gap H, at the moment, the through-flow cross-section area of the delay channel 331 formed by the through-flow small hole 3221 and the through-flow gap H is smaller. The sealing gasket 334 is adopted to form the one-way valve 334, and the delay channel 331 is formed by the overcurrent small hole 3221 and the overcurrent gap H together, so that the design is ingenious, the structure is simple, and the delay function is reliable. In this embodiment, the sealing gasket 334 is specifically matched with the through-flow aperture 3221 to control the opening and closing of the through-flow aperture 3221, and the sealing gasket 334 does not control the opening and closing of the through-flow gap H.
Referring to fig. 3, the toilet drainage device of this embodiment further includes a brush ring water channel 90, an inlet of the brush ring water channel 90 is communicated with the flushing water channel 40, an outlet of the brush ring water channel 90 is communicated with an upper flushing port 113 provided at an upper portion of the toilet seat body 10, and further includes a brush ring control valve 100 for controlling opening and closing of the inlet of the brush ring water channel 90, and a starting member is linked to open the brush ring control valve 100, so that water in the toilet water tank 20 can be used for supplying water to the brush ring water channel 90 at the same time, and water supply to the brush ring water channel 90 is not required to be provided with a water source, so that the structure is simpler and more compact. Specifically, the actuator is coupled to the brush ring control valve 100 via the second drive line 82.
Referring to fig. 3 to 6, the water outlet 21 is provided with a fixing base 22, a buoyancy mechanism 60 is movably arranged on the fixing base 22 up and down, the height of the buoyancy barrel 61 in a floating position relative to the fixing base 22 is adjustable, specifically, the buoyancy mechanism 60 comprises a screw 63 connected with a sealing disc 62, the buoyancy barrel 61 is in threaded connection with the screw 63, and the height of the buoyancy barrel 61 in a floating position relative to the fixing base 22 is adjusted by adjusting the position of the buoyancy barrel 61 on the screw 63. By adjusting the height of the float 61, the amount of water discharged can be adjusted, so that the versatility of the product is better.
The working procedure of this embodiment is briefly described as follows:
in the initial state, the valve body 32 of the drain control valve 30 is kept to close the valve port 314 by the elastic member 333 and the water pressure, i.e., the drain control valve 30 is in the closed state, so that the space between the valve port 314 and the drain port 21 of the flushing channel 40 has water storage, and since the valve port 314 and the injection port 111 are positioned below the water level of the water seal 112 of the toilet seat body 10, the flushing channel 40 between the valve port 314 and the injection port 111 is also filled with water, i.e., the entire flushing channel 40 is filled with water in the initial state; the float 61 of the buoyancy mechanism 60 is in a floating state such that the sealing plate 62 opens the drain port 21, and the toilet tank 20 is in communication with the flush water passage 40 through the drain port 21.
As shown in fig. 3, 9 and 10, when the toilet seat 10 needs to be flushed, the starting member is driven, and drives the first driving rope 81, and the first driving rope 81 drives the valve core 32 to open the valve port 314, so that water in the toilet tank 20 and water in the flushing water channel 40 flow to the injection port 111 to perform injection flushing on the bottom of the toilet bowl 11. When the valve core 32 moves towards the direction of opening the valve port 314, the valve plate 322 on the valve core 32 compresses the delay cavity 332 (see fig. 10), the one-way valve (sealing gasket) 334 is far away from the valve plate 322 under the action of water pressure, so that the through-flow small hole 3221 is opened, at this time, the through-flow cross section area of the delay channel 331 formed by the through-flow small hole 3221 and the through-flow gap H is larger, so that water in the delay cavity 332 can flow into the flushing water channel 40 quickly through the delay channel 331 (as shown by a dotted arrow in fig. 10), the valve core 32 can quickly open the valve port 314, and water in the flushing water channel 40 can be discharged from the valve port 314;
As shown in fig. 11, after the starting member is released, the valve core 32 moves towards the direction of closing the valve port 314 under the action of the elastic force of the elastic member 333, at this time, the check valve 334 moves to abut against the valve plate 322 under the action of water pressure, so as to close the through-flow aperture 3221, at this time, the through-flow cross-sectional area of the delay channel 331 formed by the through-flow aperture 3221 and the through-flow gap H is smaller, so that the water in the flushing water channel 40 slowly flows into the delay cavity 332 through the delay channel 331 (as shown by the dashed arrow in fig. 11), and the valve core 32 can delay to close the valve port 314, so as to ensure enough drainage duration.
When the water level in the toilet tank 20 drops to a predetermined height, the buoyancy of the float 61 of the buoyancy mechanism 60 is insufficient, so that the sealing plate 62 drops to close the drain port 21, ending the drainage. The closing of the drain port 21 is controlled by the buoyancy mechanism 60, so that the drain control is more accurate.
After the water discharge is completed, the toilet tank 20 is refilled with water, and the refill water can flow into the flushing channel 40 through the through-flow passage 621 of the sealing disk 62, and the flushing channel between the valve port 314 and the drain port 21 is filled with water because the valve port 314 is in a closed state. When the water level of the flushing channel 40 is full to the lower surface of the sealing plate 62, the lower surface of the sealing plate 62 receives an upward water pressure, so that the resultant force applied to the sealing plate 62 is upward, and the sealing plate 62 automatically moves upward to open the water discharge port 21 in preparation for the next flushing. Meanwhile, after the toilet seat 10 is drained, the water sealed by the water seal is also replenished, and the water sealed by the water seal can enter the flushing water channel 40 through the jet orifice 111, so that the flushing water channel 40 between the valve port 314 and the jet orifice 111 is also filled with water, and the whole flushing water channel 40 is filled with water in an initial state so as to prepare for the next flushing.
The delay channel 331 of the above embodiment may be replaced by: the delay channel 331 is only arranged on the valve core 32, a through hole (not shown) is arranged on the valve plate 322, and a through groove (not shown) is arranged on one side of the sealing gasket 334, which is opposite to the valve port 314; when the valve core 32 moves towards the direction of opening the valve port 314, a gap is formed between the sealing gasket 334 and the valve plate 322, and a delay channel 331 is formed between the gap and the through hole, so that the flow cross section of the extension channel is larger; and when the sealing gasket 334 moves towards the direction of closing the valve port 314, the sealing gasket 334 is attached to the valve plate 322, at this time, the through-flow groove and the through hole form a delay channel 331, the through-flow sectional area of the extension channel is smaller, the through-flow sectional area of the through-flow groove is smaller than the through-flow sectional area of the gap H, and the through-flow sectional area of the gap H is smaller than the through-flow sectional area of the through hole. The working procedure of this embodiment is generally as follows:
in the initial state, the valve body 32 of the drain control valve 30 is kept to close the valve port 314 by the elastic member 333 and the water pressure, i.e., the drain control valve 30 is in the closed state, so that the space between the valve port 314 and the drain port 21 of the flushing channel 40 has water storage, and since the valve port 314 and the injection port 111 are positioned below the water level of the water seal 112 of the toilet seat body 10, the flushing channel 40 between the valve port 314 and the injection port 111 is also filled with water, i.e., the entire flushing channel 40 is filled with water in the initial state; the float 61 of the buoyancy mechanism 60 is in a floating state such that the sealing plate 62 opens the drain port 21, and the toilet tank 20 is in communication with the flush water passage 40 through the drain port 21.
When the toilet seat 10 needs to be flushed, the starting piece is driven, the starting piece drives the first driving rope 81, and the first driving rope 81 drives the valve core 32 to open the valve port 314, so that water in the toilet tank 20 and water in the flushing water channel 40 flow to the injection port 111 to perform injection flushing on the bottom of the urinal 11. When the valve core 32 moves towards the direction of opening the valve port 314, the valve plate 322 on the valve core 32 compresses the delay cavity 332, the one-way valve (sealing gasket) 334 is far away from the valve plate 322 under the action of water pressure, so that a gap is formed between the sealing gasket 334 and the valve plate 322, the flow cross-sectional area of the gap is the flow cross-sectional area of the delay channel 331, namely, the flow cross-sectional area of the delay channel 331 is larger at the moment, so that water in the delay cavity 332 can flow into the flushing water channel 40 quickly through the delay channel 331, the valve core 32 can quickly open the valve port 314, and the water in the flushing water channel 40 can be discharged from the valve port 314;
when the starting piece is released, the valve core 32 moves towards the direction of closing the valve port 314 under the action of the elastic force of the elastic piece 333, at this time, the check valve 334 moves to be abutted against the valve plate 322 under the action of water pressure, so that no gap is formed between the sealing gasket 334 and the valve plate 322, the flow cross-sectional area of the flow through groove on the sealing gasket 334 is the flow cross-sectional area of the delay channel 331, namely, the flow cross-sectional area of the delay channel 331 is smaller at this time, so that water in the flushing water channel 40 slowly flows into the delay cavity 332 through the delay channel 331, and the valve core 32 can delay to close the valve port 314, so that enough drainage duration is ensured;
When the water level in the toilet tank 20 drops to a predetermined height, the buoyancy of the float 61 of the buoyancy mechanism 60 is insufficient, so that the sealing plate 62 drops to close the drain port 21, ending the drainage. The closing of the drain port 21 is controlled by the buoyancy mechanism 60, so that the drain control is more accurate.
After the water discharge is completed, the toilet tank 20 is refilled with water, and the refill water can flow into the flushing channel 40 through the through-flow passage 621 of the sealing disk 62, and the flushing channel between the valve port 314 and the drain port 21 is filled with water because the valve port 314 is in a closed state. When the water level of the flushing channel 40 is full to the lower surface of the sealing plate 62, the lower surface of the sealing plate 62 receives an upward water pressure, so that the resultant force applied to the sealing plate 62 is upward, and the sealing plate 62 automatically moves upward to open the water discharge port 21 in preparation for the next flushing. Meanwhile, after the toilet seat 10 is drained, the water sealed by the water seal is also replenished, and the water sealed by the water seal can enter the flushing water channel 40 through the jet orifice 111, so that the flushing water channel 40 between the valve port 314 and the jet orifice 111 is also filled with water, and the whole flushing water channel 40 is filled with water in an initial state so as to prepare for the next flushing.
In other embodiments, the delay channel 331 may also be directly formed by only through-flow small holes provided on the wall of the delay chamber 332 or on the valve core 32; alternatively, in other embodiments, the delay channel 331 is formed solely by an over-flow gap formed between the walls of the delay chamber 332 and the spool 32. The delay channel 331 is simple in structure and easy to set.
While the foregoing description illustrates and describes the preferred embodiments of the present invention, as noted above, it is to be understood that the invention is not limited to the forms disclosed herein but is not to be construed as excluding other embodiments, and that various other combinations, modifications and environments are possible and may be made within the scope of the inventive concepts described herein, either by way of the foregoing teachings or by those of skill or knowledge of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.

Claims (14)

1. A toilet drain for improving flushing performance, comprising:
the toilet seat body is provided with a urinal and an injection port arranged at the bottom of the urinal, the bottom of the urinal is provided with a water seal, and the injection port is positioned below the water level of the water seal;
the toilet water tank is provided with a water outlet, and a fixed seat is arranged at the water outlet;
the flushing water channel is upwards communicated with the water outlet and downwards communicated with the jet orifice, the water outlet is the inlet of the flushing water channel, and the jet orifice is the outlet of the flushing water channel;
the drainage control valve is arranged at the lower part of the flushing water channel and is provided with a valve port used for communicating the water outlet and the injection port, and in an initial state, the drainage control valve is in a state of closing the valve port so that water can be stored in a space between the valve port and the water outlet in the flushing water channel; the drainage control valve comprises a valve core matched with the valve port and a delay mechanism for controlling the valve core to delay closing of the valve port;
The starting piece is used for controlling the opening of the drainage control valve by driving the valve core;
the buoyancy mechanism is arranged in the toilet water tank and can be arranged on the fixing seat in an up-down movable mode, the buoyancy mechanism comprises a floating barrel and a sealing disc, the floating barrel of the buoyancy mechanism is in a floating position in an initial state, so that the sealing disc is used for opening the water outlet, the toilet water tank is communicated with the flushing water channel through the water outlet, and when the water level of the toilet water tank is lowered to a preset height, the floating barrel falls down and drives the sealing disc to close the water outlet.
2. The toilet drain according to claim 1, wherein when the sealing plate of the buoyancy mechanism closes the drain opening, and when the sealing plate is pressurized with water on a side of the flushing channel, the sealing plate is forced upward by buoyancy of the float to move upward and open the drain opening.
3. The toilet drain according to claim 2, further comprising a flow-through channel through which water of the toilet tank can flow into the flush channel when the buoyancy mechanism closes the drain, such that the sealing disk is subjected to water pressure on one side of the flush channel, the flow-through channel being provided on or between the buoyancy mechanism and the drain; or,
When the buoyancy mechanism closes the water outlet, the water outlet is completely closed, and the flushing water channel is supplemented with water through a water supply channel, so that the sealing disc is positioned on one side of the flushing water channel and receives water pressure.
4. The toilet drain according to claim 1, wherein the valve port is below the water level of the water seal.
5. The toilet drain according to claim 1, wherein the valve port is disposed proximate the jet port.
6. The toilet drain device according to claim 1, wherein a mounting cavity which is integrally formed with the toilet seat body and is used for accommodating the drain control valve is formed at the bottom of the flushing water channel, the inner end opening of the mounting cavity forms the injection port, and the outer end opening of the mounting cavity is used for the drain control valve to pass out; the mounting cavity is communicated with the water outlet through a communication pipe, and the communication pipe is integrally formed with the toilet seat body or the communication pipe is independently formed and fixedly attached to the toilet seat body.
7. The toilet drain according to claim 6, wherein the drain control valve further comprises a valve body having an inner cavity, a valve inlet communicating with the inner cavity and a valve outlet communicating with the inner cavity are provided on the valve body, the valve inlet communicates with the drain port through a communication pipe, the valve outlet is in sealing communication with the jet port, the valve port is located in the inner cavity to communicate the valve inlet and the valve outlet, the inner cavity of the communication pipe and the installation cavity together form the flushing channel, and the valve core and the delay mechanism are provided on the valve body.
8. The toilet drain according to claim 1, wherein the delay mechanism includes a delay passage, a delay chamber in communication with the flush water passage, and an elastic member for driving the valve element to reset to close the valve port, the valve element compressing the delay chamber when moved in a direction to open the valve port so that water in the delay chamber flows into the flush water passage through the delay passage; when the valve core moves towards the direction of closing the valve port under the action of the elastic force of the elastic piece, water in the flushing water channel slowly flows into the delay cavity through the delay channel.
9. The toilet drain according to claim 8, wherein the delay channel includes an over-flow orifice provided on a wall of the delay chamber or on the valve core; and/or, the delay channel comprises an overflow gap, and the overflow gap is formed between the cavity wall of the delay cavity and the valve core.
10. The toilet drain according to claim 8, wherein the delay mechanism further comprises a one-way valve for controlling the size of the cross-sectional area of the delay passage, the one-way valve controlling the delay passage to open more so that water in the delay chamber flows faster through the delay passage into the flush channel when the valve core moves in a direction to open the valve port; when the valve core moves towards the direction of closing the valve port, the one-way valve controls the delay channel to be opened less so that water in the flushing water channel flows into the delay cavity more slowly through the delay channel.
11. The toilet drain according to claim 10, wherein the delay channel is provided on a wall of the delay chamber and/or on the valve core and/or between the wall of the delay chamber and the valve core; the one-way valve is arranged on the cavity wall of the delay cavity and/or arranged on the valve core and/or arranged between the cavity wall of the delay cavity and the valve core.
12. The toilet drain according to claim 11, wherein the valve core comprises a valve rod, a valve plate connected to one end of the valve rod, and a sealing gasket movably arranged on the valve plate, the valve plate and the valve port are in sealing fit through the sealing gasket, the other end of the valve rod penetrates out of the delay cavity, and the valve plate is also matched with the delay cavity to compress water in the delay cavity; the valve plate is provided with an overflow small hole used for forming one part of the delay channel, an overflow gap used for forming the other part of the delay channel is arranged between the cavity wall of the delay cavity and the valve core, when the valve core moves towards the direction of opening the valve port, the sealing gasket opens the overflow small hole or the overflow gap, at the moment, the overflow cross section area of the delay channel formed by the overflow small hole and the overflow gap is larger, when the sealing gasket moves towards the direction of closing the valve port, the sealing gasket closes the overflow small hole or the overflow gap, at the moment, the overflow cross section area of the delay channel formed by the overflow small hole and the overflow gap is smaller, and the sealing gasket forms the one-way valve; or,
The delay channel is only arranged on the valve core, a through hole is arranged on the valve plate, and a through groove is arranged on one side of the sealing gasket, which is opposite to the valve port; when the valve core moves towards the direction of opening the valve port, a gap is formed between the sealing gasket and the valve plate, the gap and the through hole form a time delay channel, when the sealing gasket moves towards the direction of closing the valve port, the sealing gasket is attached to the valve plate, the overflow groove and the through hole form the time delay channel, the overflow sectional area of the overflow groove is smaller than that of the gap, the overflow sectional area of the gap is smaller than that of the through hole, and the sealing gasket forms the one-way valve.
13. The toilet drain according to claim 1, further comprising a brush ring water channel, an inlet of the brush ring water channel being in communication with the flush water channel, an outlet of the brush ring water channel being in communication with an upper flush port provided in an upper portion of the toilet seat, and a brush ring control valve for controlling opening and closing of the inlet of the brush ring water channel, the actuator opening the brush ring control valve in linkage.
14. The toilet drain according to claim 13, wherein the actuator is coupled to the drain control valve by a first drive line and coupled to the brush ring control valve by a second drive line.
CN202111317646.9A 2021-11-09 2021-11-09 Toilet bowl drainage device capable of improving flushing performance Active CN113898046B (en)

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CN216195223U (en) * 2021-11-09 2022-04-05 谷力(厦门)科技有限公司 Closestool drainage device capable of improving flushing performance

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JP2006241698A (en) * 2005-02-28 2006-09-14 Toto Ltd Flush toilet bowl
CN205822383U (en) * 2016-06-17 2016-12-21 厦门瑞尔特卫浴科技股份有限公司 A kind of high performance toilet flushing machine and time-delayed self-closing switch valve gear thereof
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CN111691522A (en) * 2020-07-07 2020-09-22 九牧厨卫股份有限公司 Water replenishing device and method for closestool and siphon closestool
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