CN208949990U - A kind of closestool drainage system - Google Patents

A kind of closestool drainage system Download PDF

Info

Publication number
CN208949990U
CN208949990U CN201821147116.8U CN201821147116U CN208949990U CN 208949990 U CN208949990 U CN 208949990U CN 201821147116 U CN201821147116 U CN 201821147116U CN 208949990 U CN208949990 U CN 208949990U
Authority
CN
China
Prior art keywords
water
channel
closestool
drainage
intake mechanism
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
CN201821147116.8U
Other languages
Chinese (zh)
Inventor
黄贵阳
钟志军
张凤荣
张祖连
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 R&T Plumbing Technology Co Ltd
Original Assignee
Xiamen R&T Plumbing Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xiamen R&T Plumbing Technology Co Ltd filed Critical Xiamen R&T Plumbing Technology Co Ltd
Priority to CN201821147116.8U priority Critical patent/CN208949990U/en
Application granted granted Critical
Publication of CN208949990U publication Critical patent/CN208949990U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Sanitary Device For Flush Toilet (AREA)

Abstract

The utility model discloses a kind of closestool drainage systems, closestool includes the brush circle water channel washed away to closestool urinal inner wall and what is be connected with closestool urinal bottom main rush channel, drainage system includes: water tank, for storing flushing water, the water tank, which is equipped with, is connected to the water tank cavity and the main drainage channel for rushing channel;Water supplying unit, for providing the flushing water to water tank;Drainage mechanism, spool including opening or closing the drainage channel, the drainage channel is opened in spool activity under the action of waterpower in turn, and the water supplying unit supplies water to brush circle water channel before the spool opens the drainage channel, this programme occurs that washing away for closestool urinal inner wall before the main punching of sewage pipe, the dirt of closestool urinal inner wall can be taken away by main punching, to keep closestool flushing more thorough.

Description

A kind of closestool drainage system
Technical field
The utility model relates to a kind of closestool drainage systems.
Background technique
Currently, existing closestool usually has brush circle water channel and main flushing channel, the water inlet of brush circle water channel and main flushing channel is basic Synchronous to carry out, when often appearance brush circle water channel does not complete the flushing of closestool wall surface also in this way, washing away for main flushing channel is complete At causing the water of flushing toilet bowl inner wall to have little time to drain and remain in urinal, flushing effect with washing away for main flushing channel It is bad.
Utility model content
The utility model is to solve the above problems, provide a kind of closestool drainage system.
To achieve the above object, the technical solution adopted in the utility model are as follows:
A kind of closestool drainage system, closestool include the brush circle water channel that closestool urinal inner wall is washed away and with the closestool Urinal bottom be connected it is main rush channel, drainage system includes:
Water tank, for storing flushing water, the water tank, which is equipped with, is connected to the water tank cavity and the main draining for rushing channel Channel;
Water supplying unit can provide the flushing water to water tank;
Drainage mechanism, the spool including opening or closing the drainage channel, the spool are movable under the action of waterpower And then the drainage channel is opened, and the water supplying unit encloses the brush before the spool opens the drainage channel Water channel supplies water.
Preferably, the water supplying unit includes for providing the first water intake mechanism of the flushing water to the water tank.
Preferably, first water intake mechanism is equipped with the first switch unit, starts first water intake mechanism to the brush Circle water channel supplies water, and is switched to and is supplied water to the hydraulic cavities to open the draining and lead to by first switch unit Road, and switch under the action of first switch unit and supply water to the water tank.
Preferably, the water supplying unit further includes the second water intake mechanism, is enclosed by second water intake mechanism to the brush Water channel supplies water.
Preferably, supplied water by second water intake mechanism to the drainage mechanism with drive the spool activity into And open the drainage channel.
Preferably, second water intake mechanism include with brush first water channel that is connected of circle water channel and with it is described hydraulic The second water channel that chamber is connected further includes one second switch unit, and second water intake mechanism is by first water channel to institute State brush circle water channel carry out water supply preset time after, second switch unit effect under, switch to through second water channel It is supplied water to the hydraulic cavities to be formed hydraulic and then open the drainage channel.
Preferably, second switch unit includes transfer strip and the switching keg float being connected with the transfer strip, described Switching keg float is equipped with the counterweight chamber being connected with first water channel, described to cut when the switching keg float is in floating position Changing piece makes second water intake mechanism supply water first water channel, and most of water of first water channel flow to described Brush circle water channel, fraction water flow to that the counterweight is intracavitary, under active force of the switching keg float by ballast water in the counterweight chamber It falls and drives the transfer strip activity, so that second water intake mechanism supplies water to second water channel.
Preferably, second switch unit includes the switching keg float and one that transfer strip and the transfer strip are connected The sealing cup being connected with first water channel, the switching keg float floats or falls with sealing water in the cup position, described to cut When changing keg float and being in drop-off positions, the transfer strip makes second water intake mechanism supply water first water channel, institute The most of water for stating the first water channel flow to brush circle water channel, fraction water is flow in the sealing cup, the switching keg float with Sealing water in the cup position floats and drives the transfer strip activity, so that second water intake mechanism is to second water It supplies water in road.
Preferably, the water supplying unit further includes that a pair of hydraulic cavities supply water to provide hydraulic third water inlet machine The drainage channel is opened in structure, spool activity under the hydraulic action that the third water intake mechanism provides in turn.
Preferably, the drainage mechanism includes hydraulic cavities, and the spool is movable under the hydraulic action of the hydraulic cavities.
The beneficial effects of the utility model are:
A kind of closestool drainage system of the utility model, closestool include the brush circle water channel washed away to closestool urinal inner wall And be connected with closestool urinal bottom it is main rush channel, drainage system includes: water tank, for storing flushing water, the water Case, which is equipped with, is connected to the water tank cavity and the main drainage channel for rushing channel;Water supplying unit can provide the flushing to water tank Water;Drainage mechanism, the spool including opening or closing the drainage channel, spool activity under the action of waterpower are beaten in turn Open the drainage channel, and the water supplying unit before the spool opens the drainage channel to brush circle water channel into Row supply water, this programme make closestool urinal inner wall wash away generation it is main rush the main punching in channel before, can be by closestool urinal inner wall Dirt by it is main punching take away, to keep closestool flushing more thorough.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and constitutes one of the utility model Point, the exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the utility model Improper restriction.In the accompanying drawings:
Fig. 1 is a kind of closestool stereoscopic schematic diagram of closestool drainage system of the utility model embodiment one;
Fig. 2 is a kind of cross-sectional view of the closestool of closestool drainage system of the utility model embodiment one;
Fig. 3 is that (the second water intake mechanism is to first for a kind of cross-sectional view of closestool drainage system of the utility model embodiment one Water channel carries out service position);
Fig. 4 is that (the second water intake mechanism is to second for a kind of cross-sectional view of closestool drainage system of the utility model embodiment one Water channel carries out service position);
Fig. 5 is a kind of cross-sectional view of closestool drainage system of the utility model embodiment two;
Fig. 6 is a kind of stereoscopic schematic diagram of the closestool of closestool drainage system of the utility model embodiment three;
Fig. 7 is a kind of stereoscopic schematic diagram of the first water intake mechanism of closestool drainage system of the utility model embodiment three;
Fig. 8 be the utility model embodiment three a kind of closestool drainage system cross-sectional view (the first water intake mechanism to brush enclose Water channel carries out service position);
Fig. 9 is that (the first water intake mechanism is to draining for a kind of cross-sectional view of closestool drainage system of the utility model embodiment three Mechanism carries out service position);
Figure 10 is that (the first water intake mechanism is to water tank for a kind of cross-sectional view of closestool drainage system of the utility model embodiment three Carry out service position).
Specific embodiment
In order to be clearer and more clear technical problem to be solved in the utility model, technical solution and beneficial effect, with Under in conjunction with the accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein Example is applied only to explain the utility model, is not used to limit the utility model.
Embodiment one:
As shown in Figures 1 to 4, a kind of closestool drainage system, closestool 1 include the brush washed away to 10 inner wall of closestool urinal Circle water channel 11 and be connected with 10 bottom of closestool urinal it is main rush channel 12, drainage system includes: water tank 20, for store rinse Water, the water tank 20, which is equipped with, is connected to 20 inner cavity of water tank and the main drainage channel 21 for rushing channel 12;Water supplying unit, can be right Water tank 20 provides the flushing water;Drainage mechanism 40, the spool 42 including opening or closing the drainage channel 21, the spool 42 activity and then open the drainage channel 21 under the action of waterpower, and the water supplying unit opens institute in the spool 42 It supplies water before stating drainage channel 21 to brush circle water channel 11, in the present embodiment, the drainage mechanism 40 includes hydraulic cavities 41, the spool 42 is movable under the hydraulic action of the hydraulic cavities 41, in the present embodiment, the water supplying unit include for pair The water tank 20 provides the first water intake mechanism 30 of the flushing water, further, further includes the second water intake mechanism 50, passes through institute It states the second water intake mechanism 50 to supply water to brush circle water channel 11, in the present embodiment, the first water intake mechanism 30 is using mechanical Pressure difference inlet valve, second water intake mechanism 50 use solenoid valve, set by the control module parameter to solenoid valve It is fixed, and then the water inlet duration of the second water intake mechanism 50 can be controlled, and first water intake mechanism 30 of the present embodiment and the Two water intake mechanisms 50 are separately independently arranged, naturally it is also possible to be combined using the first water intake mechanism 30 and the second water intake mechanism 50 Integral structure.
In the present embodiment, supplied water the drainage mechanism 40 to drive the valve by second water intake mechanism 50 The drainage channel 21 is opened in 42 activity of core in turn.
In the present embodiment, second water intake mechanism 50 include with brush first water channel 51 that is connected of circle water channel 11 and The second water channel 52 being connected with the hydraulic cavities 41, further includes one second switch unit 60, and second water intake mechanism 50 is logical Cross first water channel 51 to the brush circle water channel 11 carry out water supply preset time after, the second switch unit 60 effect under, cut It shifts to and is supplied water to the hydraulic cavities 41 by second water channel 52 to form the hydraulic opening drainage channel 21.
In the present embodiment, second switch unit 60 includes transfer strip 61 and the switching keg float being connected with transfer strip 61 62, the switching keg float 62 is equipped with the counterweight chamber 63 being connected with first water channel 51, and the switching keg float 62 is in upper When trim is set, the transfer strip 61 makes second water intake mechanism 50 supply water first water channel 51, and described first Most of water of water channel 51 flow to the brush circle water channel 11, fraction water is flow in the counterweight chamber 63, the switching keg float 62 It is fallen by the active force of ballast water in the counterweight chamber 63 and drives 61 activity of transfer strip, so that second water inlet Mechanism 52 supplies water to second water channel 52.
In the present embodiment, the counterweight chamber 63 is equipped with a leakage hole 631, and the water in the counterweight chamber 63 is through the leakage hole So that the switching keg float 62 floats with cistern water level, the switching keg float 62 and the counterweight chamber 63 are formed for 631 outflows It can ensure that the mechanism that preset time period water supply is carried out to the brush circle water channel 11, also, keg float 62 and the counterweight chamber 63 formation The time-delay structure to supply water to the drainage mechanism 40 delay.
Certainly, the present embodiment can also prolong the drainage mechanism 40 to realize using the cooperation of keg float and sealing cup When supply water, specifically, second switch unit 60 includes transfer strip 61, the switching keg float 62 that is connected with the transfer strip 61 And the sealing cup (not shown) that is connected with first water channel 51, the switching keg float 62 is with sealing water in the cup position It floats or falls, when the switching keg float 62 is in drop-off positions, the transfer strip 61 makes second water intake mechanism 50 right First water channel 51 supplies water, and most of water of first water channel 51 flow to brush the circle water channel 11, fraction water flow In to the sealing cup, after preset time, the switching keg float 62 floats with sealing water in the cup position and drives the switching 61 activity of piece, so that second water intake mechanism 50 supplies water to second water channel 52, to realize to draught engine The delay of structure 40 is supplied water.
In the present embodiment, an elastomer 43 is equipped between the spool 42 and the hydraulic cavities 41, the spool 42 is in institute It states and overcomes the elastic force of the elastomer 43 mobile under the hydraulic action of hydraulic cavities 41 to open the drainage channel 21, and The spool 42 resets under the reset force effect of the elastomer 43 to close the drainage channel 21 when hydraulic insufficient.
In the present embodiment, spool 42 is equipped with the sealing ring cooperated with 41 inner wall of hydraulic cavities, and spool 42 opens drainage channel During 21, sealing is formed between 41 inner wall of sealing ring and hydraulic cavities, so that the hydraulic cavities 41 form enough liquid Pressure to be to open drainage channel 21, hydraulic in hydraulic cavities 41 to be not enough to overcome elastomer 43 when the second water intake mechanism 50 is closed Reset force, elastomer 43 make spool 42 be re-closing off drainage channel 21.
The specific course of work of the present embodiment are as follows:
When second water intake mechanism 50 starts, the switching keg float 62 is in floating position, and the transfer strip 61 makes Second water intake mechanism 50 supplies water to first water channel 51, and most of water of first water channel 51 flow to the brush Circle water channel 11, fraction water are flow in the counterweight chamber 63, and the switching keg float 62 is fallen by the active force of the counterweight chamber 63 And 61 activity of transfer strip is driven, so that second water intake mechanism 52 supplies water to second water channel 52, into And the water of the second water channel 52 enters hydraulic cavities 41, spool 42 the pressure of hydraulic cavities opened under effect the drainage channel 21 into Row draining.
Embodiment two:
As shown in figure 5, the difference of the present embodiment and above-described embodiment is, it further include a pair of liquid in the present embodiment Pressure chamber 41 supplies water to provide hydraulic third water intake mechanism 70, and no setting is required for second water intake mechanism 50 ' of the present embodiment Two switch units 60, and the second water intake mechanism 50 ' is provided only with the first water channel 51 ' being connected with brush circle water channel 11, brush circle water Road 11 and hydraulic cavities 41 are supplied water by the second water intake mechanism 50 ' and third water intake mechanism 70 respectively, specifically, the spool 42 activity and then open the drainage channel 21 under the hydraulic action that the third water intake mechanism 70 provides, the third water inlet Mechanism 70 is preferably solenoid valve, according to program setting, so that the second water intake mechanism 50 is completed after supplying water to brush circle water channel 11, then is beaten Opening third water intake mechanism 70 makes third water intake mechanism supply water hydraulic cavities 41, other not described parts and above-mentioned phase one It causes, which is not described herein again.
Embodiment three:
As shown in Fig. 6 to Figure 10, the difference of the present embodiment and first embodiment is, the water supplying unit is provided only with described First water intake mechanism 30 ', the first water intake mechanism 30 ' in the present embodiment is solenoid valve, and the solenoid valve is equipped with the first water outlet Channel 33, the second exhalant canal 34 and third exhalant canal 35, brush circle water channel 11, hydraulic cavities 41 and water tank 20 are respectively with the One exhalant canal 33, the second exhalant canal 34 and third exhalant canal 35 are connected, in the present embodiment, first water intake mechanism 30 ' are equipped with the first switch unit, start first water intake mechanism 30 ' and supply water to brush circle water channel 11, pass through first Switch unit, which switches to, to supply water to the hydraulic cavities 41 to open the drainage channel 21, and single in first switching It switches under the action of member and supplies water to the water tank 20.
In the present embodiment, first switch unit includes the first switching mechanism 31 and the second switching mechanism 32, and first cuts Structure 31 of changing planes includes the first transfer strip 311 and the first switching keg float 312 being connected, and the first switching keg float 312 is equipped with and first The counterweight chamber 313 that exhalant canal 33 is connected, second switching mechanism 32 include the second transfer strip 321 and second being connected Switch keg float 322, starts first water intake mechanism 30 ' and supplied by the first exhalant canal 33 to brush circle water channel 11 Water, fraction water flow to counterweight chamber 313, after preset time, under the first switching keg float 312 is under 313 active force of counterweight chamber It falls, the first transfer strip 311 is driven to switch over, so that the first water intake mechanism 30 ' is by the second exhalant canal 34 to described hydraulic Chamber 41 supplies water, and after preset time, spool 42 opens drainage channel 21, so that water level decreasing in water tank 20, second is cut It changes keg float 322 to fall with 20 water level of water tank, the second transfer strip 321 is driven to switch over, so that the first water intake mechanism 30 ' passes through the Three exhalant canals 35 supply water to water tank 20, and other not described parts are consistent with the above, and which is not described herein again.
The preferred embodiment of the utility model has shown and described in above description, as previously described, it should be understood that this is practical new Type is not limited to forms disclosed herein, and should not be regarded as an exclusion of other examples, and can be used for various other groups Conjunction, modification and environment, and above-mentioned introduction or the technology of related fields can be passed through within the scope of the inventive concept described herein Or knowledge is modified.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, then It all should be in the protection scope of the appended claims for the utility model.

Claims (10)

1. a kind of closestool drainage system, closestool include the brush circle water channel that closestool urinal inner wall is washed away and with the closestool just What bottom of pond portion was connected main rushes channel, which is characterized in that drainage system includes:
Water tank, for storing flushing water, the water tank, which is equipped with, is connected to the water tank cavity and the main drainage channel for rushing channel;
Water supplying unit can provide the flushing water to water tank;
Drainage mechanism, the spool including opening or closing the drainage channel, the spool under the action of waterpower activity in turn The drainage channel is opened, and the water supplying unit encloses water channel to the brush before the spool opens the drainage channel It supplies water.
2. a kind of closestool drainage system according to claim 1, which is characterized in that the water supplying unit includes for institute It states water tank and the first water intake mechanism of the flushing water is provided.
3. a kind of closestool drainage system according to claim 2, which is characterized in that first water intake mechanism is equipped with first Switch unit starts first water intake mechanism and supplies water to brush circle water channel, switched by first switch unit It is extremely supplied water to hydraulic cavities to open the drainage channel, and switched under the action of first switch unit to institute Water tank is stated to supply water.
4. a kind of closestool drainage system according to claim 2, which is characterized in that the water supplying unit further include second into Water dispenser structure encloses water channel to the brush by second water intake mechanism and supplies water.
5. a kind of closestool drainage system according to claim 4, which is characterized in that by second water intake mechanism to institute Drainage mechanism is stated to supply water to drive the spool activity and then open the drainage channel.
6. a kind of closestool drainage system according to claim 5, which is characterized in that second water intake mechanism includes and institute Brush circle water channel the first water channel being connected and the second water channel being connected with hydraulic cavities are stated, further includes one second switch unit, institute It states the second water intake mechanism and the brush is enclosed after water channel carries out water supply preset time by first water channel, in second switching Under unit effect, switches to and supplied water to hydraulic cavities by second water channel to form the draining of hydraulic opening and lead to Road.
7. a kind of closestool drainage system according to claim 6, which is characterized in that second switch unit includes switching Piece and the switching keg float being connected with the transfer strip, the switching keg float are equipped with the counterweight being connected with first water channel Chamber, when the switching keg float is in floating position, the transfer strip make second water intake mechanism to first water channel into Row supplies water, and it is intracavitary that most of water of first water channel flow to that the brush encloses water channel, fraction water flow to the counterweight, described to cut Keg float is changed to be fallen by the active force of ballast water in the counterweight chamber and drive transfer strip activity so that described second into Water dispenser structure supplies water to second water channel.
8. a kind of closestool drainage system according to claim 6, which is characterized in that second switch unit includes switching The sealing cup that piece, the switching keg float being connected with the transfer strip and one are connected with first water channel, the switching are floating Bucket floats or falls with sealing water in the cup position, and when the switching keg float is in drop-off positions, the transfer strip makes described Second water intake mechanism supplies water to first water channel, and most of water of first water channel flow to brush circle water channel, small Part water is flow in the sealing cup, and the switching keg float floats with sealing water in the cup position and drives the transfer strip living It is dynamic, so that second water intake mechanism supplies water to second water channel.
9. a kind of closestool drainage system according to claim 4, which is characterized in that the water supplying unit further includes a pair of of liquid Pressure chamber supplies water to provide hydraulic third water intake mechanism, the hydraulic action that the spool is provided in the third water intake mechanism The drainage channel is opened in lower activity in turn.
10. a kind of closestool drainage system according to claim 1, which is characterized in that the drainage mechanism includes hydraulic cavities, The spool is movable under the hydraulic action of the hydraulic cavities.
CN201821147116.8U 2018-07-19 2018-07-19 A kind of closestool drainage system Active CN208949990U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821147116.8U CN208949990U (en) 2018-07-19 2018-07-19 A kind of closestool drainage system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821147116.8U CN208949990U (en) 2018-07-19 2018-07-19 A kind of closestool drainage system

Publications (1)

Publication Number Publication Date
CN208949990U true CN208949990U (en) 2019-06-07

Family

ID=66732156

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821147116.8U Active CN208949990U (en) 2018-07-19 2018-07-19 A kind of closestool drainage system

Country Status (1)

Country Link
CN (1) CN208949990U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109056937A (en) * 2018-07-19 2018-12-21 厦门瑞尔特卫浴科技股份有限公司 A kind of closestool drainage system
CN112376661A (en) * 2020-05-25 2021-02-19 厦门恩沐智能科技有限公司 Energy accumulator and toilet flushing system with same
CN113898046A (en) * 2021-11-09 2022-01-07 谷力(厦门)科技有限公司 Closestool drainage device capable of improving flushing performance

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109056937A (en) * 2018-07-19 2018-12-21 厦门瑞尔特卫浴科技股份有限公司 A kind of closestool drainage system
CN112376661A (en) * 2020-05-25 2021-02-19 厦门恩沐智能科技有限公司 Energy accumulator and toilet flushing system with same
CN113898046A (en) * 2021-11-09 2022-01-07 谷力(厦门)科技有限公司 Closestool drainage device capable of improving flushing performance
CN113898046B (en) * 2021-11-09 2024-01-30 谷力(厦门)科技有限公司 Toilet bowl drainage device capable of improving flushing performance

Similar Documents

Publication Publication Date Title
CN208949990U (en) A kind of closestool drainage system
CN108071149B (en) Toilet flushing method
CN104093918A (en) Water-saving toilet
CN208009576U (en) A kind of water inlet switching device for cistern and the closestool with water inlet switching device for cistern
CN205315813U (en) Two water route pulse solenoid valve
CN105888009A (en) High-performance toilet washing mechanism and delaying self-closing switch valve device thereof
CN208009577U (en) A kind of water inlet startup control mechanism
CN208965663U (en) A kind of closestool with simple flushing device
CN100414048C (en) Toilet flusher
CN105951965A (en) Closestool
CN212358502U (en) Comprehensive flushing closestool
CN109056937A (en) A kind of closestool drainage system
CN211080451U (en) Flushing control system and toilet without water tank with same
CN205822383U (en) A kind of high performance toilet flushing machine and time-delayed self-closing switch valve gear thereof
CN109098243A (en) A kind of closestool and flush toilets method with simple flushing device
CN104988973A (en) Water saving stool
CN102359166B (en) Water pre-injection type double-seal pedestal pan
CN107724489A (en) A kind of device that can realize that closestool is self-cleaning
CN206888110U (en) The low pressure flushometer of intellectual water closet
CN208965662U (en) A kind of closestool with pre-flush function
KR20120083615A (en) Water distributor/distributing method of green toilet which is operated by filling time of pilot waters
CN201778377U (en) Toilet bowl with floater and hose
CN208604717U (en) A kind of toilet flushing mechanism with switching device
CN207047971U (en) A kind of size rushes water compensation mechanism
CN207700304U (en) A kind of flusher of toilet

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant