CN215253263U - Flushing toilet - Google Patents

Flushing toilet Download PDF

Info

Publication number
CN215253263U
CN215253263U CN202120679755.4U CN202120679755U CN215253263U CN 215253263 U CN215253263 U CN 215253263U CN 202120679755 U CN202120679755 U CN 202120679755U CN 215253263 U CN215253263 U CN 215253263U
Authority
CN
China
Prior art keywords
water
outlet
valve
toilet bowl
communicated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202120679755.4U
Other languages
Chinese (zh)
Inventor
李惜平
江长发
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiamen Axent Corp Ltd
Original Assignee
Xiamen Axent Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xiamen Axent Corp Ltd filed Critical Xiamen Axent Corp Ltd
Priority to CN202120679755.4U priority Critical patent/CN215253263U/en
Application granted granted Critical
Publication of CN215253263U publication Critical patent/CN215253263U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Sanitary Device For Flush Toilet (AREA)

Abstract

The utility model relates to a bath toilet bowl, including being used for switching a second water source selective switch-on the auto-change over device and the linkage of brush circle water spouting portion and injection water spouting portion auto-change over device with hydraulic drive device's linkage, hydraulic drive device drive pass through during drain valve drainage the linkage drives auto-change over device by the second water source switch-on the first state of brush circle water spouting portion switches to the second water source switch-on the second state of injection water spouting portion to make the water at second water source flow earlier toward brush circle water spouting portion is followed again with the follow drain valve outlet exhaust water is followed together the outflow of injection water spouting portion. The flushing toilet bowl can ensure that the sewage flowing down from the inner ring surface of the toilet bowl body is taken away by the sprayed water, and meanwhile, the two paths of water participate in spraying together, so that the flushing effect of the toilet bowl is greatly improved.

Description

Flushing toilet
Technical Field
The application relates to sanitary equipment, in particular to a toilet bowl capable of flushing water.
Background
Existing toilets are typically provided with two outlet conduits, namely a jet conduit and a brush ring conduit. The water flow is divided into two parts after flowing out from the drain valve of the water storage tank, one part of the water flows through the brushing ring pipeline to brush the inner ring surface of the toilet body, and the other part of the water flows through the jet pipeline to flow out to jet and flush the bottom of the toilet body. However, since the flush water and the jet water are sprayed simultaneously, and the path length of the jet water in the ceramic structure is much shorter than the path length of the flush water which needs to travel one turn, if the part of the inner surface of the toilet body which is stuck on the wall is likely to be relatively delayed, the flush water will be brought to the water seal only when the jet water is finished or is about to be finished, and the flush water may not be cleaned and the customer experience is poor because the dirt cannot be taken out of the toilet and is left in the water seal.
Disclosure of Invention
The main purpose of this application is to overcome the above-mentioned defect among the prior art, provides a toilet bowl of bath.
The utility model provides a bath toilet bowl, including water storage box, injection water-spraying portion, brush circle water-spraying portion, be equipped with the drain valve in the water storage box, drain valve outlet intercommunication the injection water-spraying portion, the drain valve carries out drainage control, its characterized in that through a hydraulic drive device who switches on with first water source: the device also comprises a switching device for switching a second water source to selectively switch on the brush ring water-spraying part and the jet water-spraying part and a linkage piece for linking the switching device and the hydraulic driving device, wherein the linkage piece is configured to: when the hydraulic driving device drives the drain valve to drain, the linkage piece drives the switching device to be switched from a first state that the second water source is communicated with the brush ring water spraying part to a second state that the second water source is communicated with the jet water spraying part, so that water of the second water source flows to the brush ring water spraying part firstly and then flows out of the jet water spraying part together with water discharged from the drain valve.
Preferably, the hydraulic driving device is provided with a hydraulic cavity, a water inlet communicated with the hydraulic cavity and a piston arranged in the hydraulic cavity, the first water source is communicated with the water inlet, and the piston is linked with the switching device through the linkage piece.
Preferably, the switching device has a second water source inlet, a first outlet, a second outlet, and a switching member movably provided between the first outlet and the second outlet, the first outlet is connected to the wiper rim water discharge portion, the second outlet is connected to the jet water discharge portion, and the switching member is linked with the piston by the link.
Preferably, the linkage part is a linkage crank, the switching part is rotatably arranged at the first outlet and the second outlet, and the piston drives the linkage crank to drive the switching part to switch between the first outlet and the second outlet.
Preferably, the first water source is water of a municipal water supply network, and the second water source is water stored in a water storage tank pumped by a water pump; or the second water source is water of a municipal water supply network, and the first water source is water stored in the water storage tank extracted by the water pump.
Preferably, the hydraulic drive device further comprises a water outlet communicated with the hydraulic cavity, and the water outlet is communicated to the jet water spouting portion and/or the brush ring water spouting portion, so that the first water source flows into a drain valve water outlet from the water inlet and then flows out of the water outlet to participate in flushing of the toilet bowl.
Preferably, the hydraulic driving device further comprises a pressure control valve for opening the water outlet under a certain pressure, and the pressure control valve is configured to open the water outlet after the hydraulic driving device drives the drain valve to open the drain opening.
Preferably, the hydraulic driving mechanism comprises a piston arranged in the hydraulic cavity, a sealing ring sleeved on the piston, and a return spring for returning the piston after the drain valve drains water, the pressure control valve comprises a valve body provided with a water inlet end and a water outlet end, the water inlet end is communicated with the hydraulic cavity, the water outlet end is communicated with the water outlet, a valve port is arranged in the valve body, and the opening and closing of the valve port controls the on-off of the water inlet end and the water outlet end; the valve body of the pressure control valve is also internally provided with a valve core, an elastic part which is propped between the valve body and the valve core and a sealing gasket which is sleeved on the valve core and is used for sealing the valve port, the sealing area of the sealing gasket is N times of that of the sealing gasket, the working force value of the reset spring is set to be less than N times of that of the elastic part, and N is a natural number which is more than or equal to 5.
Preferably, the water storage tank further comprises a water inlet valve, the water inlet valve is provided with a second water outlet and a first water outlet for enabling water to flow into the water storage tank, the second water outlet is connected with the water inlet, and the first water source or the second water source is supplied by the second water outlet.
Preferably, the water outlets of the first water outlet and the second water outlet are independent from each other, and the first water outlet starts to discharge water only after the water outlet of the second water outlet stops.
The present application further provides a flushing method of a flush toilet, comprising the steps of:
a. the second water source is communicated with a brush ring water-jetting part of the toilet bowl to flush the peripheral wall of the toilet bowl;
b. the first water source is communicated with the hydraulic driving device, the hydraulic driving device drives the drain valve in the water storage tank of the toilet to drain, the linkage piece connected with the hydraulic driving device drives the switching device to be switched from a first state that the second water source is communicated with the brush ring water-jetting part to a second state that the second water source is communicated with the jet water-jetting part, and water of the second water source and water discharged from the drain valve water outlet flow out from the jet water-jetting part together.
Preferably, the hydraulic drive mechanism has a water outlet communicating with the jet water spouting portion, and the step b further includes the step of causing water of the first water source to flow out from the water outlet after the drain valve is driven by the hydraulic drive device to drain, and causing the water to flow out from the jet water spouting portion together with water of the second water source and water discharged from the drain valve drain port.
According to the above description of the present application, compared with the prior art, the present application has the following beneficial effects:
1. when the first water source drives the drain valve to drain, the water of the second water source is switched to flow out from the jet water-jetting part together with the water drained from the drain outlet of the drain valve, and jet washing is carried out on the bottom of the toilet bowl body. On one hand, the sewage flowing down from the inner ring surface of the toilet bowl body can be ensured to be taken away by the sprayed water, and meanwhile, the two paths of water participate in spraying together, so that the flushing effect of the toilet bowl is greatly improved.
2. The reuse is used for participating in the toilet bowl and washes after the drain valve is opened to first water source, and the utilization efficiency of this water source is high, can promote the washing effect of toilet bowl greatly simultaneously.
3. The linkage piece is utilized to link the switching device and the piston, and the structure for realizing the functions is simple and reliable.
4. The water pump is used for pumping water in the water storage tank to open the drain valve, the influence of water inlet pressure can be avoided, the drain valve can be ensured to be opened, and the stability of flushing control is enhanced.
5. The water outlet of the first water outlet and the water outlet of the second water outlet are mutually independent, an external pressure water source is fully utilized, and the phenomenon that when the external pressure water source is utilized to wash, the washing effect is influenced by the shunting of the first water outlet is avoided.
Drawings
FIG. 1 is an overall schematic view of a toilet bowl according to an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view of a toilet bowl shown in the first embodiment of the present application, FIG. 1;
FIG. 3 is a schematic cross-sectional view of a toilet bowl shown in the first embodiment of the present application, FIG. 2;
FIG. 4 is a schematic view illustrating an initial state of a hydraulically driven drain valve of the toilet stool according to an exemplary embodiment of the present application;
FIG. 5 is a schematic view illustrating a drain state of a hydraulically driven drain valve of the toilet stool according to an exemplary embodiment of the present application;
FIG. 6 is another schematic view of an initial state of a hydraulically driven drain valve of the toilet bowl according to an exemplary embodiment of the present application;
fig. 7 is another schematic view illustrating a drainage state of a hydraulically driven drain valve of a toilet stool according to an exemplary embodiment of the present application.
Detailed Description
The present application will be further described with reference to the accompanying drawings, and as shown in the drawings, the flush toilet of the present application includes a toilet body 10 and a water storage tank 20, the toilet body 10 is provided with a sewage pipe 11, a jet pipe 12 for jetting washing water to the sewage pipe 11, and a scrubbing pipe for scrubbing the peripheral wall of the toilet body. The drain pipe 11 is preferably a siphon pipe capable of generating siphon when draining. The water storage tank 20 is further provided with a drain valve 30, a hydraulic drive device 40 attached to the drain valve 30 and capable of driving the drain valve 30 to drain, a water inlet valve 60, a switching device 80, and a linkage member 90 linking the switching device 80 and the hydraulic drive device 40, wherein the drain valve outlet 31 is communicated with the jet pipe 12, and water flowing out of the jet pipe 12 is jetted through the jet water jetting portion.
The hydraulic driving device 40 is preferably integrated with the drain valve 30, and the hydraulic driving device 40 is disposed above the drain valve 30, for example, the housing of the hydraulic driving device 40 is clamped with the housing of the drain valve 30. The hydraulic driving device 40 is provided with a hydraulic cavity 43, a water inlet 41 capable of being communicated with the hydraulic cavity, a piston 44 arranged in the hydraulic cavity 43, a sealing ring 46 sleeved on the piston 44, a return spring 47 for returning the piston 44 after the water discharge of the water discharge valve is carried out, and a connecting rod 45 linked with the piston 44, wherein the connecting rod 45 is connected with the sealing component 32 of the water discharge valve, so that the sealing component 32 driving the water discharge valve moves together when the piston 44 moves. The water inlet 41 is connected to a first water source, and specifically, the water inlet 41 is connected to the first water source through a connection pipe 16. The first water source flows into the hydraulic chamber 43 from the water inlet 41, the pressure in the hydraulic chamber 43 continuously rises, the piston 44 is pushed to move, the connecting rod 45 drives the sealing component 32 of the drain valve to move together, the drain valve outlet 31 is opened for draining, and the water stored in the toilet cistern 20 flows out from the jet water discharge part through the drain valve 30.
The switching device 80 is used for switching a second water source to selectively connect the brush ring water-jetting portion 13 and the jet water-jetting portion, when the hydraulic driving device 40 drives the drain valve 30 to drain, the linkage member 90 drives the switching device 80 to switch from a first state that the second water source is connected with the brush ring water-jetting portion 13 to a second state that the second water source is connected with the jet water-jetting portion, so that the water of the second water source flows to the brush ring water-jetting portion 13 first and then flows out from the jet water-jetting portion together with the water drained from the drain valve drain port 31. Specifically, the switching device 80 has a second water source inlet 81, a first outlet 82, a second outlet 83, and a switching member 84 movably disposed at the first outlet 82 and the second outlet 83, the first outlet 82 is connected to the brush ring water discharge portion 13 through a connecting pipe 17, the second outlet 83 is connected to the jet water discharge portion, and the switching member 84 is linked with the piston 44 through the linking member 90. Preferably, the linkage 90 is a linkage crank, the switch 84 is rotatably disposed at the first outlet 82 and the second outlet 83, and the piston 44 drives the linkage crank to switch the switch 84 between the first outlet 82 and the second outlet 83. In a specific embodiment, the linked crank and the switching member 84 may be fixed by a snap-fit, and the movement of the piston 44 may drive the linked crank to rotate. In this embodiment, the bottom wall of the water storage tank 20 is provided with a waterway connector, the second outlet 83 is connected with the waterway connector through a connecting pipe 18, and the jet connection assembly 14 is installed near the jet water discharge part, and the jet connection assembly 14 is connected with the waterway connector through a connecting pipe 15. With respect to the specific structure of the switching device 80 and the linkage 90, those skilled in the art should be able to select many mechanical structures from the prior art to realize the functions thereof under the guidance of the inventive concept of the present application, and the description thereof will not be repeated herein.
The water source in this application is preferably municipal water supply network water or uses the water pump 50 to draw the water storage in the water storage box 20, this second water source is municipal water supply network water in this embodiment, this first water source is the water storage in the water storage box of water pump 50 extraction. Of course, the first water source may be water from a municipal water supply network, and the second water source may be water stored in a water storage tank drawn by a water pump.
In this embodiment, the inlet valve 60 is provided with independent double outlet channels, and the water flowing out of the first outlet 62 of the inlet valve flows into the toilet cistern 20 for storage; the water flowing out of the second outlet 61 of the feed valve is connected as a second water source to the second water source inlet 81 of the switching device through the connection pipe 19. The water outlet of the first water outlet 62 and the water outlet of the second water outlet 61 are independent from each other, and the first water outlet 62 starts to output water only after the water outlet of the second water outlet 61 stops. For the specific structure of the water inlet valve and the switch assembly in this embodiment, refer to the structure of the chinese patent database with publication number CN 110056055A.
When the toilet is in operation, tap water of the municipal water supply network flows out of the second outlet 61 of the water inlet valve and enters the second water source inlet 81 of the switching device 80 as a second water source, and because the switching device 80 is in the first state of connecting the brush ring water discharge part 13, the second water source flows to the brush ring water discharge part 13 from the first outlet 82 of the switching device 80, and flushes the peripheral wall of the toilet body through the scrubbing pipeline. Then starting the water pump 50, the water of the water pump enters the hydraulic cavity 43 from the water inlet 41 of the hydraulic driving device 40 as a first water source, the first water source continuously entering the hydraulic cavity 43 pushes the piston 44 to move, thereby driving the sealing component 32 of the drain valve to open the drain port 31, and the water in the water storage tank flows through the toilet bowl jet pipeline 12 and flows out from the jet water discharge part; the switching device 80 is switched to the second state in which the second water source is connected to the jet water discharge unit by the link 90 at the same time as the opening of the discharge valve discharge port 31, and the second water source flows from the second outlet 83 of the switching device 80 to the jet water discharge unit. The water from the second water source flushes the bottom of the toilet bowl body together with the water discharged from the drain valve outlet 31. Thus, the gravity water in the water storage tank and the tap water flow towards the toilet bowl sewage discharge pipeline 11 together until the water discharge is finished. During the whole draining period, the first outlet 62 of the water inlet valve is not opened, and after the draining is finished, the buoy controlling the water inlet of the first outlet 62 of the water inlet valve falls down to start storing water into the water storage tank.
Of course, the hydraulic driving device 40 may further have a water outlet communicated with the hydraulic chamber 43, and the water outlet is communicated with the jet water spouting portion and/or the brush ring water spouting portion 13, so that the first water source flows into the drain valve drain opening from the water inlet, flows out from the water outlet, flows out from the jet water spouting portion and/or the brush ring water spouting portion 13, and participates in flushing the toilet. For this purpose, the hydraulic drive device further comprises a pressure control valve for opening the water outlet at a certain pressure, the pressure control valve being configured such that the hydraulic drive device drives the drain valve to open the water outlet only after the drain opening. The pressure control valve comprises a valve body provided with a water inlet end and a water outlet end, the water inlet end is communicated with the hydraulic cavity, the water outlet end is communicated with the water outlet, a valve port is arranged in the valve body, and the opening and closing of the valve port controls the on-off of the water inlet end and the water outlet end.
Specifically, the valve body is also internally provided with a valve core, an elastic part which is propped between the valve body and the valve core, and a sealing gasket which is sleeved on the valve core and is used for sealing the valve port, wherein in an initial state, the sealing gasket is propped by the elastic part to seal the valve port. In order to open the water outlet after opening the water outlet of the drain valve, the sealing area of the sealing ring is far larger than that of the sealing gasket, the sealing area of the sealing ring is N times of that of the sealing gasket, and N is preferably 20-30. And the working force value of the return spring is set to be less than N times of the working force value of the elastic piece. Therefore, the action time of the sealing gasket cannot be earlier than that of the sealing ring under the same power condition, so that the water outlet is opened after the water outlet of the drain valve is opened.
While the foregoing description shows and describes the preferred embodiments of the present application, it is to be understood that the application is not limited to the forms disclosed herein but is not to be taken as excluding other embodiments and as being applicable to various other combinations, modifications and environments and being capable of changes within the scope of the inventive concept as described herein, either by the above teachings or as measured by the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.

Claims (10)

1. The utility model provides a bath toilet bowl, includes water storage box, sprays water-discharging portion, brush circle water-discharging portion, be equipped with the drain valve in the water storage box, the drain valve outlet intercommunication spray water-discharging portion, the drain valve carries out drainage control through a hydraulic drive device who switches on with first water source, its characterized in that: the device also comprises a switching device for switching a second water source to selectively switch on the brush ring water-spraying part and the jet water-spraying part and a linkage piece for linking the switching device and the hydraulic driving device, wherein the linkage piece is configured to: when the hydraulic driving device drives the drain valve to drain, the linkage piece drives the switching device to be switched from a first state that the second water source is communicated with the brush ring water spraying part to a second state that the second water source is communicated with the jet water spraying part, so that water of the second water source flows to the brush ring water spraying part firstly and then flows out of the jet water spraying part together with water discharged from the drain valve.
2. The flushing toilet bowl of claim 1, wherein: the hydraulic driving device is provided with a hydraulic cavity, a water inlet communicated with the hydraulic cavity and a piston arranged in the hydraulic cavity, the first water source is communicated with the water inlet, and the piston is linked with the switching device through the linkage piece.
3. The flushing toilet bowl of claim 2, wherein: the switching device is provided with a second water source inlet, a first outlet, a second outlet and a switching piece movably arranged at the first outlet and the second outlet, the first outlet is communicated to the brush ring water spraying part, the second outlet is communicated to the jet water spraying part, and the switching piece is linked with the piston through the linkage piece.
4. A flushing toilet bowl according to claim 3 characterised in that: the linkage piece is a linkage crank, the switching piece is rotatably arranged at the first outlet and the second outlet, and the piston drives the linkage crank to drive the switching piece to switch between the first outlet and the second outlet.
5. A flushing toilet bowl according to any one of claims 1 to 4 characterised in that: the first water source is water of a municipal water supply network, and the second water source is water stored in a water storage tank pumped by a water pump; or the second water source is water of a municipal water supply network, and the first water source is water stored in the water storage tank extracted by the water pump.
6. A flushing toilet bowl according to any one of claims 2 to 4 characterised in that: the hydraulic driving device is also provided with a water outlet communicated with the hydraulic cavity, and the water outlet is communicated to the jet water-spraying part and/or the brush ring water-spraying part, so that the first water source flows into the water inlet to open the water discharge valve water discharge outlet and then flows out of the water outlet to participate in flushing of the toilet bowl.
7. The flushing toilet bowl of claim 6, wherein: the hydraulic driving device further comprises a pressure control valve used for opening the water outlet under certain pressure, and the pressure control valve is configured to open the water outlet after the hydraulic driving device drives the water outlet of the drain valve to be opened.
8. The flushing toilet bowl of claim 7, wherein: the hydraulic driving mechanism comprises a piston arranged in the hydraulic cavity, a sealing ring sleeved on the piston and a return spring for returning the piston after the drain valve drains water, the pressure control valve comprises a valve body provided with a water inlet end and a water outlet end, the water inlet end is communicated with the hydraulic cavity, the water outlet end is communicated with the water outlet, a valve port is arranged in the valve body, and the opening and closing of the valve port controls the on-off of the water inlet end and the water outlet end; the valve body of the pressure control valve is also internally provided with a valve core, an elastic part which is propped between the valve body and the valve core and a sealing gasket which is sleeved on the valve core and is used for sealing the valve port, the sealing area of the sealing gasket is N times of that of the sealing gasket, the working force value of the reset spring is set to be less than N times of that of the elastic part, and N is a natural number which is more than or equal to 5.
9. A flushing toilet bowl according to any one of claims 2 to 4 characterised in that: the water storage tank is internally provided with a water inlet valve, the water inlet valve is provided with a second water outlet and a first water outlet which enables water to flow into the water storage tank, the second water outlet is connected with the water inlet, and the first water source or the second water source is supplied by the second water outlet.
10. The flushing toilet bowl of claim 9, wherein: the inlet valve is configured to: the water outlet of the first water outlet and the water outlet of the second water outlet are independent from each other, and the first water outlet starts to discharge water after the water outlet of the second water outlet stops.
CN202120679755.4U 2021-04-02 2021-04-02 Flushing toilet Active CN215253263U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120679755.4U CN215253263U (en) 2021-04-02 2021-04-02 Flushing toilet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120679755.4U CN215253263U (en) 2021-04-02 2021-04-02 Flushing toilet

Publications (1)

Publication Number Publication Date
CN215253263U true CN215253263U (en) 2021-12-21

Family

ID=79507358

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120679755.4U Active CN215253263U (en) 2021-04-02 2021-04-02 Flushing toilet

Country Status (1)

Country Link
CN (1) CN215253263U (en)

Similar Documents

Publication Publication Date Title
CN210066936U (en) Toilet flushing system
CN108071149B (en) Toilet flushing method
CN104988973A (en) Water saving stool
CN215253262U (en) Flushing toilet
CN215253263U (en) Flushing toilet
CN210529861U (en) Water-air mixed flushing and supercharging device
CN209924074U (en) Toilet flushing device with water-sealed water storage cavity
CN208965662U (en) A kind of closestool with pre-flush function
CN206888110U (en) The low pressure flushometer of intellectual water closet
CN115182425A (en) Flushing toilet and flushing method
CN210066937U (en) Pneumatic control closestool with water tank hidden under toilet
CN105625532A (en) Independent variable column-control type total pressure assisted flushing valve
CN214884141U (en) Low cistern closet
CN214833220U (en) Toilet bowl capable of efficiently flushing
CN210713114U (en) Wall-mounted closestool
CN213204337U (en) Self-pressurization efficient energy-saving toilet bowl
CN209941821U (en) Water-saving environment-friendly toilet
CN211523401U (en) Drainage control mechanism of double drain valve
KR200262753Y1 (en) A tolet bowl for economization of water
CN115162479A (en) Flushing toilet and flushing method
CN207700304U (en) A kind of flusher of toilet
CN208763139U (en) A kind of toilet seat is compound to wash away spray head
CN108560666B (en) Toilet bowl
CN218597290U (en) High-efficient toilet bowl that erodees
KR20120084477A (en) Flush valve pressure rooms equipped with a water feature using the bidet water supply shut off valve dual automatic flushing bidet

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: ECO (XIAMEN) TECHNOLOGY Inc.

Assignor: XIAMEN AXENT Corp.,Ltd.

Contract record no.: X2023980038959

Denomination of utility model: Flushing toilet

Granted publication date: 20211221

License type: Common License

Record date: 20230807

EE01 Entry into force of recordation of patent licensing contract