CN113898045B - Flushing system of closestool and water tank-free closestool - Google Patents
Flushing system of closestool and water tank-free closestool Download PDFInfo
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- CN113898045B CN113898045B CN202111154491.1A CN202111154491A CN113898045B CN 113898045 B CN113898045 B CN 113898045B CN 202111154491 A CN202111154491 A CN 202111154491A CN 113898045 B CN113898045 B CN 113898045B
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- water
- water outlet
- bushing
- valve
- valve body
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 240
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 89
- 230000000670 limiting effect Effects 0.000 claims abstract description 91
- 238000007789 sealing Methods 0.000 claims description 18
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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
Abstract
The invention discloses a flushing system of a closestool and a water tank-free closestool, wherein the flushing system comprises a flushing valve, and further comprises at least one flow limiting valve, the flow limiting valve comprises a valve body, a bushing and a reset component, the valve body is provided with a water inlet and a water outlet, the bushing is internally provided with a flow limiting structure, the bushing is axially movably arranged in the valve body, a main flow channel which is communicated with the flow limiting structure, the water inlet and the water outlet is formed in the bushing, a side flow channel which is communicated with the water inlet and the water outlet is formed between the outer side surface of the bushing and the valve body, and the bushing is driven by water pressure to close the side flow channel, or the bushing is driven by the reset component which is matched with the valve body to open the side flow channel; the flushing valve and the flow limiting valve are arranged on the same waterway. The flow limiting valve can control the flushing water quantity not to exceed the standard when the water pressure is high, prevent water flow from splashing, and not influence the flushing function when the water pressure is low.
Description
Technical Field
The invention relates to the field of bathroom, in particular to a flushing system of a closestool and a closestool without a water tank.
Background
At present, a water tank-free closestool on the market generally adopts a flushing valve to control flushing, so that the flushing water quantity is controlled not to exceed the standard, and a current limiting piece is generally arranged at the water inlet end or the water outlet end of the flushing valve so as to prevent water flow from splashing, and the working principle of the current limiting piece is as follows: along with the increase of water pressure, the sealing ring of the flow limiting piece is compressed, the water inlet section is reduced, and the flow is reduced, so that the flow limiting effect is achieved. Since the restriction of the restriction sheet is proportional to the pressure, even at low pressure, the restriction sheet has the same restriction, which results in a smaller flow rate at low pressure due to the restriction of the restriction sheet. Therefore, the water inlet end or the water outlet end of the flushing valve is provided with the flow limiting piece which is only suitable for the condition of high water pressure, when the water pressure is low, the flow limiting piece can cause the problem of flushing function, therefore, under the condition of low water pressure, the flow limiting piece needs to be detached, after the water pressure becomes high, the flow limiting piece is assembled, so that the use is inconvenient, a user often has trouble, the flow limiting piece is not assembled in a high-pressure state, and the problems of splashing and exceeding flushing water quantity are caused when the high pressure occurs.
Disclosure of Invention
The invention provides a flushing system of a closestool and a water tank-free closestool, which aim at the technical problems in the prior art, and can infinitely flow under the condition of low pressure, but can start the function of stable flow restriction under the condition of high pressure.
The technical scheme adopted for solving the technical problems is as follows: the flushing system of the closestool comprises a flushing valve and at least one flow limiting valve, wherein the flow limiting valve comprises a valve body, a bushing and a reset component, the valve body is provided with a water inlet and a water outlet, a flow limiting structure is arranged in the bushing, the bushing is axially movably arranged in the valve body, a main flow channel which is communicated with the flow limiting structure, the water inlet and the water outlet is formed in the bushing, a side flow channel which is communicated with the water inlet and the water outlet is formed between the outer side surface of the bushing and the valve body, and the bushing is driven by water pressure to close the side flow channel, or the bushing is driven by the reset component which is matched with the valve body to open the side flow channel; the flushing valve and the flow limiting valve are arranged on the same waterway.
Further, the water outlet of the valve body is communicated with the water inlet end of the flushing valve, or the water inlet of the valve body is communicated with the water outlet end of the flushing valve.
Further, a sealing ring is sleeved outside the bushing, a water stopping surface corresponding to the sealing ring is arranged in the valve body, and the sealing ring is separated from or contacted with the water stopping surface so that the side flow channel is opened or closed.
Further, the return member includes an elastic member fitted between the bushing and the valve body.
Further, a first supporting part is arranged in the bushing, a supporting shaft positioned in the moving direction of the bushing is arranged on the first supporting part, and the tail end of the supporting shaft extends out of the bushing; the valve body is internally provided with a second support part, the second support part is provided with a shaft hole, and the support shaft can axially movably penetrate through the shaft hole; the tail end of the fulcrum shaft is provided with a limiting part so as to limit the fulcrum shaft to withdraw from the shaft hole; the elastic piece is abutted between the first supporting part and the second supporting part.
Further, the limiting part comprises a plurality of elastic arms arranged at the tail end of the support shaft, the elastic arms are distributed at intervals along the circumferential direction of the support shaft, each elastic arm can elastically swing along the radial direction of the support shaft, the outer side surface of the tail end of each elastic arm is provided with a limiting barb, and the limiting barb penetrates through the shaft hole and is clamped at one side of the second support part; the first branch part and the second branch part are respectively hollow structures.
Further, the flow limiting structure is a flow limiting sheet which is arranged in the lining, or the flow limiting structure comprises a shell which is integrally formed with the lining, and an elastomer which can be compressed to play a role in limiting flow is arranged on the shell; the flow restricting structure is located in an end of the liner facing the water inlet.
Further, the flushing valve is provided with two water outlet ends, wherein one water outlet end is used for supplying water to a water path of the brush ring at the top of the toilet bowl, and the other water outlet end is used for supplying water to the jet orifice at the bottom of the toilet bowl; the water outlet of the valve body is communicated with the water inlet end of the flushing valve.
Further, during flushing, the two water outlets are synchronously opened, the other water outlet is closed before the one water outlet, the one water outlet is closed after a first preset time, the other water outlet is opened again before the one water outlet is closed, the other water outlet is closed after a second preset time, and the first preset time is the same as or different from the second preset time.
Further, before the another water outlet end which is opened again is closed, one water outlet end is opened again, and the one water outlet end is closed after a third preset time; the third preset time is the same as or different from the first preset time and the second preset time.
The invention also provides a water tank-free closestool, which comprises a closestool seat and a flushing system of the closestool, wherein the flushing system is used for providing flushing water for the closestool seat.
Compared with the prior art, the invention has the following beneficial effects:
1. the flow limiting valve comprises a valve body, a flow limiting structure, a bushing and a reset part, so that a main flow channel controlled by the flow limiting structure and a side flow channel controlled by the flow limiting structure are formed, the bushing is acted by the reset part to open the side flow channel in a low water pressure state, and the bushing is hydraulically driven to close the side flow channel in a high water pressure state.
2. The arrangement of the sealing ring and the water stopping surface makes the structure of the side flow channel very simple and the arrangement is simple.
3. The reset component is preferably an elastic component, so that the reset component is simple and convenient to set and low in cost.
4. The first support part and the support shaft thereof, and the second support part and the shaft hole thereof are arranged, so that the invention can realize the movement guide of the bushing in the valve body with a simple structure and can avoid the bushing from falling off. The limiting part is preferably provided with the elastic arm and the limiting barb on the elastic arm at the tail end of the support shaft, so that the bushing assembly is more convenient.
5. The invention controls the opening time sequence of the two water outlet ends, and solves the problem of inconsistent starting and flow limiting pressure of the flow limiting valve caused by different water paths of the brush ring and openings of the injection port.
The invention is described in further detail below with reference to the drawings and examples; the flushing system of a toilet and the toilet without a water tank of the present invention are not limited to the embodiments.
Drawings
FIG. 1 is a schematic perspective view of a flushing system of the present invention;
FIG. 2 is an exploded schematic view of the restrictor valve of the present invention;
FIG. 3 is a schematic view (in cross-section) of the inlet water of the restrictor valve of the present invention in a low water pressure state;
FIG. 4 is a schematic view (in cross-section) of the inlet water of the restrictor valve of the present invention in a high water pressure condition;
FIG. 5 is a schematic diagram of the pressure versus flow of the restrictor valve and restrictor plate of the present invention;
FIG. 6 is a timing diagram of the control of the brush ring waterway and jet orifice by the flushing system of the present invention;
FIG. 7 is a schematic perspective view of the toilet without a water tank of the present invention;
FIG. 8 is a schematic diagram showing a perspective construction of a toilet without a water tank according to the present invention;
the flushing valve comprises a flushing valve body, a flushing valve 101, a water inlet end, a flushing valve body, a flushing valve 103, a water outlet end 20, a flow limiting valve 30, a water inlet pipe 40, a first water outlet pipe 50, a second water outlet pipe 60, a toilet seat 1, a valve body 11, a water inlet 12, a water outlet 13, a water stopping surface 14, a second branch part 15, a shaft hole 2, a flow limiting piece 21, a sealing ring 22, a shell 3, a bushing 31, a first branch part 32, a supporting shaft 33, a limiting step 321, an elastic arm 322, a limiting barb 4, a sealing ring 5, a spring 6, a main flow channel 7 and a side flow channel 7.
Detailed Description
Referring to fig. 1-6, a flushing system of a toilet bowl according to the present invention includes a flushing valve 10 and a flow limiting valve 20, wherein the flow limiting valve 20 includes a valve body 1, a liner 3 and a reset member, the valve body 1 is provided with a water inlet 11 and a water outlet 12, a flow limiting structure is arranged in the liner 3, the liner 3 is movably arranged in the valve body 1, a main flow channel 6 is formed inside the liner 3 and is communicated with the flow limiting structure, the water inlet 11 and the water outlet 12, and a side flow channel 7 is formed between the outside of the liner 3 and the valve body 1 and is communicated with the water inlet 11 and the water outlet 12. The bushing 3 is hydraulically driven to close the side flow channel 7, or the bushing 3 is acted by a reset component matched with the valve body 1 to open the side flow channel 7, specifically, in a high water pressure state, the bushing 3 is hydraulically driven to close the side flow channel 7, and in a low water pressure state, the bushing 3 is acted by a reset component matched with the valve body 1 to open the side flow channel 7.. The flushing valve 10 and the flow limiting valve 20 are arranged on the same waterway, and specifically, the water outlet 12 of the valve body is communicated with the water inlet end 101 of the flushing valve 10. Therefore, the flow limiting valve 20 of the present invention can form the main flow channel 6 which is controlled by the restriction flow structure and the side flow channel 7 which is not controlled by the restriction flow structure, in the low water pressure state, the side flow channel 7 is opened, so that the flow of the present invention can not be too small due to the restriction flow of the restriction flow structure, in the high water pressure state, the side flow channel 7 is closed, only the main flow channel 6 is kept smooth, and the restriction flow structure on the main flow channel 6 plays a role of stable restriction flow. The low water pressure state refers to a state in which the pressure of water flowing into the water inlet is less than or equal to a preset value, and the high water pressure state refers to a state in which the pressure of water flowing into the water inlet is higher than the preset value.
In this embodiment, the flush valve 10 has two water outlets 102 and 103, wherein one water outlet 102 is used for supplying water to the water path of the brush ring at the top of the toilet bowl, and is connected with the first water outlet pipe 40, and the other water outlet 103 is used for supplying water to the injection port at the bottom of the toilet bowl, and is connected with the second water outlet pipe 50; the water inlet 11 of the valve body is connected with a water inlet pipe 30. In other embodiments, the water inlet of the valve body is connected to the water outlet end of the flushing valve, and when the number of the water outlet ends of the flushing valve is at least two, the number of the flow limiting valves is also at least two, and the flow limiting valves are in one-to-one correspondence with the water outlet ends of the flushing valve.
In this embodiment, the sealing ring 4 is sleeved outside the bushing 3, the sealing surface 13 corresponding to the sealing ring 4 is provided in the valve body 1, and the sealing ring 4 is separated from or contacted with the sealing surface 13, so that the side flow channel 7 is opened or closed. The water stop surface 13 is specifically, but not limited to, an inclined surface, and in other embodiments, the water stop surface is a plane perpendicular to the axial direction of the valve body.
In this embodiment, the return member comprises an elastic member, in particular a spring 5, fitted between the bushing 3 and the valve body 1. In other embodiments, the reset component comprises a magnet assembly, the magnet assembly comprises a first magnet and a second magnet, the first magnet is arranged on the lining, the second magnet is arranged on the valve body, and the same-name magnetic poles of the first magnet and the second magnet are opposite, so that in a low-pressure state, the lining keeps the side flow channel open under the action of magnetic force repulsion of the first magnet and the second magnet.
In this embodiment, a first supporting portion 31 is disposed inside the liner 3, a fulcrum 32 located in the moving direction of the liner 3 is disposed in the middle of the first supporting portion 31, the tail end of the fulcrum 32 extends out of the liner 3, specifically, the fulcrum 32 extends out of the liner 3 from one end of the liner 3 facing the water outlet 12; the valve body 1 is provided with a second support portion 14, the second support portion 14 is provided with a shaft hole 15, and the support shaft 32 is axially movably inserted into the shaft hole 15. In this way, the bushing 3 can be guided in a moving manner by the engagement of the support shaft 32 with the shaft hole 15. The elastic member (i.e. the spring 5) is abutted between the first support portion 31 and the second support portion 14, and the spring 5 is sleeved outside the support shaft 32. The first and second branch portions 31 and 14 are respectively hollow structures so as not to affect water circulation.
In this embodiment, a limiting portion is disposed at the tail end of the supporting shaft 32 to limit the supporting shaft 32 from exiting the shaft hole 15. The limiting portion includes a plurality of elastic arms 321 disposed at the tail end of the support shaft 32, the plurality of elastic arms 321 are distributed at intervals along the circumferential direction of the support shaft 32, each elastic arm 321 can elastically swing along the radial direction of the support shaft 32, the outer side surface of the tail end of each elastic arm 321 is respectively provided with a limiting barb 322, and the limiting barb 322 passes through the shaft hole 15 and is clamped at one side of the second support portion 14 opposite to the elastic member. When the spring is installed, each elastic arm 321 at the tail end of the support shaft 32 is respectively pressed against the shaft hole 15, so that each elastic arm 321 respectively passes through the shaft hole 15 by elastically swinging inwards in the radial direction to form a yielding position, and then each elastic arm 321 respectively swings and resets along the radial limit, so that the limit barb 322 at the outer side surface of the tail end of each elastic arm 321 is clamped at one side of the second support part 14 opposite to the spring 5. In other embodiments, the limiting portion is a limiting nut that is threaded onto the fulcrum tail end.
In this embodiment, the flow limiting structure is a flow limiting plate 2, the flow limiting plate 2 is installed in the liner 3 and is located in one end of the liner 3 facing the water inlet 11, a limiting step 33 is disposed on an inner wall surface of the liner 3, and the flow limiting plate 2 abuts against the limiting step 33. The flow-limiting piece 2 comprises a housing 22 and a sealing ring 21 arranged on the housing 22. In other embodiments, the flow restricting structure comprises a housing integrally formed with the bushing, the housing being provided with an elastomer, in particular a sealing ring, which is compressible to perform a flow restricting function. The structure of the housing may be identical to the structure of the housing 22 of the restrictor plate 2.
In this embodiment, the valve body 1 is provided with an external thread (may also be an internal thread) at an end where the water inlet 11 is located, and the valve body 1 is provided with an internal thread (may also be an external thread) at an end where the water outlet 12 is located, so as to facilitate application and installation of the valve body 1.
The assembly process of the restrictor valve 20 is as follows: the spring 5 is sleeved outside the support shaft 32 of the bushing 3, the flow limiting piece 2 is installed in the bushing 3, the bushing 3 is installed in the valve body 1 of the valve body 1, the support shaft 32 and the elastic arms 321 on the support shaft pass through the shaft hole 15, and the limiting barbs 322 of the elastic arms 321 are clamped on one side of the second support portion 14 opposite to the spring 5. The water inlet 11 of the valve body 1 is provided with an external thread at one end for threaded connection with one end of the water inlet pipe 30, and the water outlet 12 of the valve body is provided with an internal thread at one end for threaded connection with the water inlet end of the flushing valve 10.
The flow limiting valve 20 operates as follows:
in the low water pressure state, the spring 5 is not compressed, the side flow channel 7 is kept open, after water enters from the water inlet 11 of the valve body 1, one part of the water flows through the main flow channel 6, and the other part of the water flows through the side flow channel 7, at this time, the flow rate of the main flow channel 6 is small due to the flow limiting effect of the flow limiting piece 2, but the flow rate of the water finally flowing out from the water outlet 12 of the valve body 1 is large due to the supplement of the water flowing through the side flow channel 7. Therefore, in the low water pressure state, the flow rate of the restrictor 20 of the present invention is greater than that of the restrictor alone, as shown in fig. 5, where line a illustrates the linear relationship between the flow rate and pressure of the present invention in the low water pressure state and line B illustrates the linear relationship between the flow rate and pressure of the toilet flushing system in the low water pressure state when the restrictor alone is used.
In a high water pressure state, the spring 5 is compressed, the bushing 3 is driven by water pressure to drive the sealing ring 4 to contact with the water stop surface 13, so that the side flow channel 7 is closed, water can only flow through the main flow channel 6 where the flow limiting piece 2 is positioned, and after the flow limiting piece 2 is used for stable flow limiting, water finally flows out from the water outlet 12 of the valve body 1. Therefore, after the flow rate is stabilized at high pressure, the flow rate is consistent with the flow rate of the flow-limiting sheet used alone, as shown in fig. 5, and a ray C in the figure shows a linear relationship between the flow rate and the pressure in a high-pressure state.
According to the flushing system of the toilet bowl, infinite flow is realized under the condition of low water pressure by adopting the flow limiting valve 20, but under the condition of high water pressure, the stable flow limiting effect can be started, so that the problem that the flow is too small and shadow is used under the condition of low water pressure is solved, the flushing system is convenient for a user to use, no matter the water pressure is high or low, the flow limiting valve 20 is not required to be detached in the application process, and the purposes of controlling the flushing water quantity to be out of standard, preventing water flow from splashing and not affecting the flushing function under the condition of low water pressure are achieved.
The flush valve 10 is electrically operated and has two solenoid valves for controlling whether the two water outlets 102, 103 of the flush valve 10 are open or not, respectively. When flushing, the two water outlets 102 and 103 are synchronously opened, the other water outlet 103 is closed before one water outlet 102, one water outlet 102 is kept open to realize the flushing function of the water path of the brush ring of the toilet, one water outlet 102 is closed after a first preset time, and the other water outlet 103 is opened again before the other water outlet 102 is closed to realize the flushing function of the jet orifice of the toilet; the other water outlet end 103 is closed after a second preset time, and before the other water outlet end is closed, one water outlet end 102 is opened again to realize the flushing function of the water path of the brush ring of the toilet again, and the other water outlet end 102 is closed after a third preset time. The first preset time, the second preset time and the third preset time are the same or different.
Specifically, as shown in fig. 6, during flushing, after the two water outlets 102 and 103 are synchronously opened for T1 seconds, the other water outlet 103 (the other water outlet 103 corresponds to the jet orifice of the toilet) is closed, and after a first preset time T1 elapses, one water outlet 102 (the one water outlet corresponds to the brush ring waterway of the toilet) is closed, and T1> T1; opening the other water outlet 103 again for T2 seconds before one of the water outlets 102 is closed, and closing the other water outlet 103 after a second preset time T2 passes, wherein T2 is greater than T2; and opening one of the water outlets 102 again for T3 seconds before the other water outlet 103 is closed, and closing the one water outlet 102 after a third preset time T3 passes, wherein T3 is greater than T3. T1, t2 and t3 are respectively larger than 0 and smaller than 1, and specifically, t1, t2 and t3 can respectively take a value of 0.5; the T1, T2 and T3 are respectively 3-8 seconds, and the optimal value is 5 seconds.
According to the flushing system of the toilet bowl, the flushing time sequence of the water paths and the injection ports of the toilet bowl brush ring is controlled by controlling the switching time sequence of the two water outlet ends 102 and 103 of the flushing valve 10, so that the brush ring water paths and the injection ports have enough flushing water quantity when being flushed respectively and independently, and the problem of inconsistent starting and current limiting pressure of the current limiting valve 20 caused by different openings of the brush ring water paths and the injection ports and sequential flushing of the brush ring water paths and the injection ports can be avoided. This is because: in a critical state, the elastic force f=p1×s1—p2×s2 of the spring 4 of the restrictor 20, where P1 is the pressure of the water inlet side of the restrictor 20 acting on the liner 3, S1 is the pressure of the water outlet side of the restrictor 20 acting on the liner 3, S2 is the pressure of the liner 3 acting on the water outlet side, and when the opening sizes of the brush ring waterway and the jet orifice are different, the back pressure of the restrictor 20 will be different, resulting in different sizes of P2, and the larger the opening, the smaller the P2, the smaller the water inlet pressure will be, under the condition that F, S, S2 are constant, the liner 3' will be pushed to close the side flow channel. Thus, the pressure at which the side flow channel is closed is inversely proportional to the size of the opening. Therefore, in the case that the opening sizes of the brush ring waterway and the injection port are different, and only one flow limiting valve 20 is applied, the flushing period of the brush ring waterway and the flushing period of the injection port are overlapped with each other at the starting point and/or the ending point for a certain time, so that the opening sizes are consistent (the sum of the opening sizes of the brush ring waterway and the injection port) when the flow limiting valve 20 works each time, and the initial pressure for closing the side flow channel is the same. In the flushing period in which the brush ring waterway and the injection port are not overlapped, since the flow limiting valve 20 has already entered a stable operation state, the difference in opening sizes of the brush ring waterway and the injection port does not or substantially not affect the operation state of the flow limiting valve 20.
Referring to fig. 7 and 8, the toilet without water tank of the present invention includes a toilet seat 60, the toilet seat 60 is not provided with a water tank, a drain outlet and an injection port opposite to the drain outlet are provided at the bottom of a toilet bowl of the toilet seat 60, and a brush ring waterway for flushing a pan surface of the toilet seat 60 is provided at the top of the toilet bowl; the flushing system of the toilet bowl according to the present invention is further included, and the flushing system provides flushing water for the toilet bowl seat 60, specifically, one water outlet 102 of the flushing valve 10 is connected to the brush ring waterway through the first water outlet pipe 40, and the other water outlet 103 of the flushing valve 10 is connected to the injection port through the second water outlet pipe 50.
According to the water tank-free toilet, when flushing is started, water enters from the water inlet pipe 30, flows to the flushing valve 10 after being limited or not limited by the flow limiting valve 20, two water outlet ends 102 and 103 of the flushing valve 10 are synchronously opened for T1 seconds, the other water outlet end 103 is closed, one water outlet end 102 is closed after a first preset time T1, the other water outlet end 103 is opened again after a second preset time T2 before the other water outlet end 102 is closed, the other water outlet end 103 is closed again after a third preset time T3 after the other water outlet end 102 is closed, and the other water outlet end 102 is opened again after a third preset time T3 before the other water outlet end 102 is closed.
The flushing system of the toilet bowl and the water tank-free toilet bowl of the invention are the same as or can be realized by the prior art in no part (such as the construction, structure and the like of the flushing valve 10 and the flow limiting piece 2).
The above embodiments are only used to further illustrate a flushing system of a toilet and a water tank-free toilet of the present invention, but the present invention is not limited to the embodiments, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present invention falls within the scope of the technical solution of the present invention.
Claims (9)
1. A toilet flush system comprising a flush valve, characterized by: the flow limiting valve comprises a valve body, a bushing and a reset component, wherein the valve body is provided with a water inlet and a water outlet, a flow limiting structure is arranged in the bushing, the bushing can be axially and movably arranged in the valve body, a main flow channel which is communicated with the flow limiting structure, the water inlet and the water outlet is formed in the bushing, a side flow channel which is communicated with the water inlet and the water outlet is formed between the outer side surface of the bushing and the valve body, the bushing is driven by water pressure to close the side flow channel, or the bushing is driven by the reset component which is matched with the valve body to open the side flow channel; the flushing valve and the flow limiting valve are arranged on the same waterway; the flushing valve is provided with two water outlet ends, one water outlet end is used for supplying water to a water path of a brush ring at the top of a toilet bowl, the other water outlet end is used for supplying water to an injection port at the bottom of the toilet bowl, the other water outlet end is closed after the two water outlet ends are synchronously opened for T1 seconds, and the one water outlet end is closed after a first preset time T1, wherein T1 is more than T1; starting the other water outlet end again at T2 seconds before the other water outlet end is closed, and closing the other water outlet end after a second preset time T2, wherein T2 is more than T2; and opening one of the water outlet ends again at T3 seconds before the other water outlet end is closed, and closing the water outlet end after the third preset time T3 passes, wherein T3 is greater than T3.
2. The toilet flushing system of claim 1, wherein: the water outlet of the valve body is communicated with the water inlet end of the flushing valve, or the water inlet of the valve body is communicated with the water outlet end of the flushing valve.
3. The toilet flushing system of claim 1, wherein: the sealing ring is sleeved outside the bushing, a water stopping surface corresponding to the sealing ring is arranged in the valve body, and the sealing ring is separated from or contacted with the water stopping surface so that the side flow channel is opened or closed.
4. The toilet flushing system of claim 1, wherein: the return member includes an elastic member that fits between the bushing and the valve body.
5. The toilet flushing system of claim 4, wherein: a first supporting part is arranged in the bushing, a supporting shaft positioned in the moving direction of the bushing is arranged on the first supporting part, and the tail end of the supporting shaft extends out of the bushing; the valve body is internally provided with a second support part, the second support part is provided with a shaft hole, and the support shaft can axially movably penetrate through the shaft hole; the tail end of the fulcrum shaft is provided with a limiting part so as to limit the fulcrum shaft to withdraw from the shaft hole; the elastic piece is abutted between the first supporting part and the second supporting part.
6. The toilet flushing system of claim 5, wherein: the limiting part comprises a plurality of elastic arms arranged at the tail end of the support shaft, the elastic arms are distributed at intervals along the circumferential direction of the support shaft, each elastic arm can elastically swing along the radial direction of the support shaft, the outer side surface of the tail end of each elastic arm is provided with a limiting barb, and the limiting barb penetrates through the shaft hole and is clamped at one side of the second support part; the first branch part and the second branch part are respectively hollow structures.
7. The toilet flushing system of claim 1, wherein: the flow limiting structure is a flow limiting sheet which is arranged in the bushing, or the flow limiting structure comprises a shell which is integrally formed with the bushing, and an elastomer which can be compressed to play a role in flow limiting is arranged on the shell; the flow restricting structure is located in an end of the liner facing the water inlet.
8. The toilet flushing system of any one of claims 1-7, wherein: the water outlet of the valve body is communicated with the water inlet end of the flushing valve.
9. A toilet without a water tank comprising a toilet seat, characterized in that: a flushing system comprising a toilet according to any one of claims 1 to 8, the flushing system providing flushing water to the toilet seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111154491.1A CN113898045B (en) | 2021-09-29 | 2021-09-29 | Flushing system of closestool and water tank-free closestool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111154491.1A CN113898045B (en) | 2021-09-29 | 2021-09-29 | Flushing system of closestool and water tank-free closestool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113898045A CN113898045A (en) | 2022-01-07 |
| CN113898045B true CN113898045B (en) | 2024-03-08 |
Family
ID=79189463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111154491.1A Active CN113898045B (en) | 2021-09-29 | 2021-09-29 | Flushing system of closestool and water tank-free closestool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115162472B (en) * | 2022-08-18 | 2024-03-12 | 厦门科牧智能技术有限公司 | Hybrid integrated valve, toilet flushing system and toilet |
| CN115341631B (en) * | 2022-08-18 | 2024-04-02 | 厦门科牧智能技术有限公司 | Jet head and closestool |
| CN115450290B (en) * | 2022-08-18 | 2024-03-12 | 厦门科牧智能技术有限公司 | Mixed distributing valve, toilet flushing system and toilet |
| WO2024037624A1 (en) * | 2022-08-18 | 2024-02-22 | 厦门科牧智能技术有限公司 | Mixing distribution valve, water-closet bowl flushing system and water-closet bowl |
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| CN113898045A (en) | 2022-01-07 |
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