CN112932234A - Cover body structure and hydrogen absorption water cup thereof - Google Patents
Cover body structure and hydrogen absorption water cup thereof Download PDFInfo
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- CN112932234A CN112932234A CN202110432267.8A CN202110432267A CN112932234A CN 112932234 A CN112932234 A CN 112932234A CN 202110432267 A CN202110432267 A CN 202110432267A CN 112932234 A CN112932234 A CN 112932234A
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- cover
- hydrogen
- cup
- pressure relief
- cavity
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G19/00—Table service
- A47G19/22—Drinking vessels or saucers used for table service
- A47G19/2205—Drinking glasses or vessels
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Closures For Containers (AREA)
Abstract
The invention discloses a cover body structure, which belongs to the field of water cups and comprises a cup cover, a pressure release valve and a button, wherein the pressure release valve is fixed on the cup cover, the button is positioned at the top of the pressure release valve, one end of the button is hinged on the cup cover, a pressure release rod which translates relative to the cup cover is arranged on the pressure release valve, a hydrogen absorption channel for absorbing hydrogen is arranged in the middle of the pressure release rod, and the button is covered at the end part of one end of the hydrogen absorption channel. The invention also discloses a hydrogen absorption water cup comprising the cover body structure. This disclosed lid structure just can realize inhaling hydrogen, pressure release and drinking the alternative of hydrogen-rich water multiple function through a bowl cover, not only can prepare pressure-bearing hydrogen-rich water, fundamentally solves the defect that prior art need change the bowl cover moreover.
Description
Technical Field
The invention relates to the field of water cups, in particular to a cover body structure and a hydrogen absorption water cup used for the cover body structure.
Background
Hydrogen-rich water can provide omnidirectional anti-oxidant care, balance the internal environment and arouse human self-repair mechanism for the health, as having hydrogen-rich water preparation and accomodate the hydrogen-rich water cup of function come with receiving liking of consuming, current hydrogen-rich water cup often can only produce hydrogen through the electrolysis, and then form hydrogen-rich water, can't satisfy the hydrogen demand of user's simple, and hydrogen absorption instrument on the market is more expensive and portable not convenient for.
Chinese patent document publication No. CN107935156A the utility model discloses a hydrogen all-in-one is inhaled to multi-functional hydrogen drinking cup, include: the invention relates to a generator part, a cup body, a breathing cup cover and a cup cover part, which are based on an electrolytic method and utilize charges imposed on a bipolar plate and a special membrane to carry out water electrolysis, wherein a negative electrode and a positive electrode respectively generate hydrogen ions and oxygen ions, the hydrogen ions can be dissolved in water, and the oxygen ions and other waste gases can be discharged through a small hole at the bottom of the generator part to realize the separation of hydrogen and oxygen. Above-mentioned patent lets hydrogen ion get into the human body with respiratory form through changing the bowl cover into the breathing bowl cover, and hydrogen ion can react with human unnecessary oxygen ion, plays effects such as anti-oxidant, has become a multi-functional hydrogen water cup and has inhaled hydrogen all-in-one. This kind of design just can realize inhaling two kinds of functions of hydrogen and drinking hydrogen-rich water through changing the bowl cover, and not only the operation is complicated, and certain bowl cover easily forgets to lose moreover.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a cover body structure, which can realize the alternation of multiple functions of hydrogen absorption, pressure release and hydrogen-rich water drinking through a cup cover, not only can prepare pressure-bearing hydrogen-rich water, but also fundamentally overcomes the defect that the cup cover needs to be replaced in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a cover body structure which comprises a cup cover, a pressure release valve and a button, wherein the pressure release valve is fixed on the cup cover, the button is positioned at the top of the pressure release valve, one end of the button is hinged on the cup cover, the pressure release valve is provided with a pressure release rod which translates relative to the cup cover, the middle of the pressure release rod is provided with a hydrogen absorption channel for absorbing hydrogen, and the button is covered at the end part of one end of the hydrogen absorption channel.
The technical scheme is that the cup cover comprises an inner cover seat and an outer cover shell, the outer cover shell is sleeved on the inner cover seat, a first cavity is arranged in the middle of the inner cover seat, the pressure release valve is located in the first cavity, a pressure release opening is formed in the first cavity, and one part of the pressure release rod is in sliding fit with the inner wall of the pressure release opening.
The invention further adopts the technical scheme that the pressure relief valve further comprises a blocking piece and a spring, an accommodating groove is formed between the outer wall of the pressure relief opening and a part of the inner wall of the first cavity, the blocking piece is fixed on the pressure relief rod and is positioned in the first cavity, the first end of the spring is abutted against the blocking piece, and the other end of the spring is abutted against the bottom of the accommodating groove.
The invention has the further technical scheme that a nut is arranged on one side of the blocking piece, a rod thread is arranged on the outer surface of the pressure relief rod, the blocking piece is fixedly connected with the nut, and the nut is in threaded connection with the rod thread.
The invention further adopts the technical scheme that the pressure relief device further comprises a sealing ring, a second cavity is arranged at the lower part of the first cavity and is positioned below the pressure relief opening, the bottom end of the pressure relief rod is positioned in the second cavity, a limiting stop is arranged at the bottom of the pressure relief rod, and the sealing ring is sleeved on the pressure relief rod and is abutted against the limiting stop.
The invention further adopts the technical scheme that the hydrogen storage device further comprises a pipe plug, a plug groove for containing the pipe plug is formed in the bottom of the pressure relief rod, the other end of the hydrogen absorption channel is communicated with the top of the plug groove, and the pipe plug is in plug-in fit with the plug groove.
The invention further adopts the technical scheme that the sealing ring further comprises a connecting belt, the pipe plug is connected with the sealing ring through the connecting belt, and the connecting belt, the pipe plug and the sealing ring are integrally formed.
The invention also discloses a hydrogen absorption water cup which comprises a cup body and the cover body structure, wherein a thread wall is arranged on the periphery of the cover inner seat of the cover body structure, cup threads are arranged on the top of the cup body, an annular gap is arranged between the thread wall and the outer wall of the first cavity, and the top of the cup body extends into the annular gap to enable the cup threads to be in threaded connection with the thread wall.
The technical scheme of the invention is that the cup further comprises a sealing gasket, the sealing gasket is positioned in the annular space, and the top of the cup body is abutted against the sealing gasket.
The technical scheme is that the hydrogen cup further comprises a hydrogen generator for generating hydrogen through electrolysis, and the hydrogen generator is positioned at the bottom of the cup body.
The invention has the beneficial effects that:
the cover body structure provided by the invention is provided with the cup cover, the pressure release valve and the button, and the pressure release valve is opened to realize the pressure release function by driving the pressure release rod of the pressure release valve to translate downwards through the button. The middle part of the pressure release rod is innovatively provided with a hydrogen absorption channel, one end of the pressure release rod is hinged to the button on the cup cover to be plugged to form a hydrogen absorption structure, and when a user needs to absorb hydrogen, the button can be opened to absorb the hydrogen through the hydrogen absorption channel. The structure not only saves the replacement of the cup cover, but also can realize the switching of the functions of hydrogen absorption and pressure release.
Drawings
FIG. 1 is a front view of a hydrogen absorbing cup provided in an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a hydrogen absorbing cup provided in an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a cover construction provided in an embodiment of the present invention;
FIG. 4 is a cross-sectional view of the lid inner seat and pressure relief bar provided in an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a plug and seal ring provided in an embodiment of the present invention.
In the figure:
1. a cup cover; 2. a pressure relief valve; 3. a button; 21. a pressure relief lever; 22. a hydrogen absorption channel; 11. a cover inner seat; 12. a cover housing; 13. a first cavity; 14. a pressure relief port; 23. a baffle plate; 24. a spring; 25. accommodating grooves; 26. a nut; 27. a rod thread; 28. a seal ring; 15. a second cavity; 211. a limiting gear; 29. a pipe plug; 212. plugging the groove; 89. a connecting belt; 4. a cup body; 111. a threaded wall; 41. cup threads; 131. an annular gap; 42. sealing gaskets; 5. a hydrogen generator.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Example one
As shown in fig. 1 to 5, a lid structure that provides in this embodiment includes bowl cover 1, relief valve 2, button 3, relief valve 2 is fixed on bowl cover 1, button 3 is located the top of relief valve 2 and the one end of button 3 articulates on bowl cover 1, make button 3 open and fold, button 3 is flexible material in addition, make button 3 can take place deformation when pressing, be provided with the pressure release pole 21 for 1 translation of bowl cover on the relief valve 2, the middle part of pressure release pole 21 is provided with the hydrogen absorption passageway 22 that is used for inhaling hydrogen, button 3 covers the one end tip department at hydrogen absorption passageway 22, and can carry out the shutoff to the one end tip of hydrogen absorption passageway 22. In the specific use, when needing to carry out the pressure release through relief valve 2, press the middle part of button 3, because button 3 is flexible material so it can take place decurrent deformation and make pressure release pole 21 pushed, when pressure release pole 21 of relief valve 2 was promoted, the valve that is equivalent to relief valve 2 was opened, and relief valve 2 carries out the pressure release. The main effect of pressure release is used for making the hydrogen-rich water of high concentration, it needs to make the lid structure bear the pressure earlier to make the hydrogen-rich water of high concentration, also inside needs has certain pressure, this pressure can be higher than atmospheric pressure usually, just so make more hydrogen dissolve in water and form high concentration hydrogen-rich water, but this kind of high concentration hydrogen-rich water preparation completion back, when bowl cover 1 opens, because inside pressure is higher will release suddenly and produce "bang" sound or lead to high-pressure gas-liquid mixture to splash outward, therefore set up relief valve 2 and can effectively avoid this problem. In addition, this application adopts pressure release pole 21 to promote pressure release valve 2 and carries out the benefit of pressure release is that pressure release pole 21 both can regard as the executive component of pressure release valve 2, guide pressure release valve 2 to carry out the pressure release operation, and can set up at pressure release pole 21 and inhale hydrogen passageway 22, when needs inhale hydrogen through inhaling hydrogen passageway 22, only need open button 3 for the one end tip of inhaling hydrogen passageway 22 is opened, also the top of inhaling hydrogen passageway 22 is opened, just also above-mentioned shutoff is removed, the user inhales hydrogen operation through inhaling hydrogen passageway 22. Of course, when the hydrogen absorption passage 22 is not in use, the end of the hydrogen absorption passage 22 may be plugged with a plug 29 so that the hydrogen absorption passage 22 is in a standby state.
In order to facilitate the decompression operation of the decompression valve 2 and fix the decompression valve 2, further, the cup cover 1 comprises a cover inner seat 11 and a cover shell 12, the cover shell 12 is sleeved on the cover inner seat 11, a first cavity 13 is arranged in the middle of the cover inner seat 11, the decompression valve 2 is positioned in the first cavity 13, a decompression opening 14 formed by recessing is arranged in the first cavity 13, and the decompression opening 14 and the first cavity 13 are integrally formed. A portion of the pressure relief stem 21 is in sliding engagement with the inner wall of the pressure relief vent 14. Because a part of the pressure relief rod 21 is in sliding fit with the inner wall of the pressure relief opening 14, a gap is formed between a part of the outer surface of the pressure relief rod 21 and the inner wall of the pressure relief opening 14, the gap can perform pressure relief operation, and when the gap is communicated with high-pressure gas inside the cup body 4, the high-pressure gas can be leaked from the gap, so that the purpose of pressure relief is achieved. In order to enable the pressure relief rod 21 of the pressure relief valve 2 to return to the original position when not being pressed, that is, the position of the gap blocked by the sealing ring 28, it is further preferable that the pressure relief valve 2 further includes a blocking piece 23 and a spring 24, an accommodating groove 25 is formed between an outer wall of the pressure relief port 14 and a part of an inner wall of the first cavity 13, the blocking piece 23 is fixed on the pressure relief rod 21 and is located in the first cavity 13, a first end of the spring 24 abuts against the blocking piece 23, and the other end of the spring 24 abuts against the bottom of the accommodating groove 25. Due to the elastic force of the spring 24, when the pressure relief rod 21 is not pressed downward, the pressure relief rod always moves upward, so that the sealing ring 28 at the lower end of the pressure relief rod 21 is attached to one end of the gap, and further the pressure relief rod cannot be relieved, and only when the pressure relief rod 21 moves downward, the end, away from the gap, of the sealing ring 28 can cause high-pressure gas to leak out of the gap. In order to fix the blocking plate 23, it is further preferable that a nut 26 is provided at one side of the blocking plate 23, a rod thread 27 is provided on an outer surface of the pressure relief rod 21, the blocking plate 23 is fixedly connected to the nut 26, and the nut 26 is threadedly engaged with the rod thread 27. The flap 23 is secured by a nut 26 so that the first end of the spring 24 acts better on the flap 23, i.e. on the pressure relief bar 21. In order to prevent the gas from leaking from the gap when the pressure relief rod 21 is at its original position, it is further preferable that the cover structure further includes a sealing ring 28, the second cavity 15 is disposed at the lower portion of the first cavity 13, the second cavity 15 is disposed below the pressure relief opening 14, the bottom end of the pressure relief rod 21 is disposed in the second cavity 15, a limiting stop 211 is disposed at the bottom of the pressure relief rod 21, the sealing ring 28 is sleeved on the pressure relief rod 21 and abuts against the limiting stop 211, when the pressure relief rod 21 moves up to the limiting position, which is at its original position in the normal state, the sealing ring 28 will be attached to one end of the gap between a part of the outer surface of the pressure relief rod 21 and the inner wall of the pressure relief opening 14, so that the gap is blocked, and the gas cannot be relieved through the gap, at this time, if the button 3 pushes the pressure relief rod 21 to move down, the sealing ring 28 leaves the gap, and the high-pressure gas inside the cup body 4 will immediately, this design allows the relief valve 2 to be relieved only when it is depressed.
When the hydrogen absorption passage 22 is not required to be used, the hydrogen absorption passage 22 can be put on standby. The cover body structure further comprises a pipe plug 29, the bottom of the pressure relief rod 21 is provided with a plug groove 212 used for accommodating the pipe plug 29, the other end of the hydrogen absorption channel 22 is communicated with the top of the plug groove 212, and the pipe plug 29 is in plug fit with the plug groove 212, so that the other end of the hydrogen absorption channel 22 is plugged. When the user does not need to suck hydrogen, the pipe plug 29 can be inserted into the plug groove 212, so that the leakage of the joint of the button 3 and the cover at one end of the hydrogen sucking channel 22 can be avoided when the high-concentration hydrogen-rich water is manufactured by pressure bearing again. Further preferably, the cover structure further comprises a connecting strip 89, the pipe plug 29 is connected with the sealing ring 28 through the connecting strip 89, and the connecting strip 89, the pipe plug 29 and the sealing ring 28 are integrally formed. The setting of connecting band 89 can avoid the stopcock 29 to lose on the one hand, and on the other hand can be with integrative injection moulding of stopcock 29, sealing ring 28 and connecting band 89, easily processing can one shot forming.
Example two
In order to facilitate the spiral connection between the cup cover 1 and the cup body 4 and store hydrogen-rich water through the cup body 4, the embodiment provides a hydrogen absorption cup, which comprises the cup body 4 and the cover body structure; the periphery of the cover inner seat 11 in the cover body structure is provided with a thread wall 111, the top of the cup body 4 is provided with a cup thread 41, an annular gap 131 is arranged between the thread wall 111 and the outer wall of the first cavity 13, and the top of the cup body 4 extends into the annular gap 131 to enable the cup thread 41 to be in threaded connection with the thread wall 111. The design ensures that the integrity of the cup cover 1 and the cup body 4 is better and more beautiful, and the bottle mouth of the cup body 4 is hidden in the annular gap 131. Further preferably, the hydrogen absorption cup further comprises a sealing gasket 42, the sealing gasket 42 is located in the annular space 131, and the top of the cup body 4 abuts against the sealing gasket 42. The sealing gasket 42 seals the mouth of the cup body 4, i.e. the top of the cup body 4, and when the lid 1 is screwed tightly, the mouth of the cup body 4 is just against the sealing gasket 42, so that the high-pressure gas cannot leak from the screwing of the cup thread 41 and the thread wall 111.
In order to enable the cover body structure to generate hydrogen, furthermore, the hydrogen absorption water cup further comprises a hydrogen generator 5 for generating hydrogen through electrolysis, the hydrogen generator 5 is positioned at the bottom of the cup body 4, the hydrogen generator 5 can electrolyze water to generate hydrogen, and the hydrogen is mixed with the water to form hydrogen-rich water. Because the lid structure that this application provided adopts many places seal structure, when its hydrogen output with hydrogen generator 5 carries out reasonable cooperation, just can generate the high concentration hydrogen-rich water of predetermineeing concentration and supply the user to drink.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (10)
1. A cover structure, comprising:
a cup cover (1);
a pressure relief valve (2); the pressure release valve (2) is fixed on the cup cover (1);
a button (3); the button (3) is positioned at the top of the pressure release valve (2), and one end of the button is hinged on the cup cover (1);
the pressure relief valve (2) is provided with a pressure relief rod (21) which translates relative to the cup cover (1), the middle of the pressure relief rod (21) is provided with a hydrogen absorption channel (22) for absorbing hydrogen, and the button (3) is covered at the end part of one end of the hydrogen absorption channel (22).
2. The cover structure according to claim 1, wherein:
the cup cover (1) comprises a cover inner seat (11) and a cover outer shell (12);
the cover shell (12) is sleeved on the cover inner seat (11), a first cavity (13) is arranged in the middle of the cover inner seat (11), the pressure release valve (2) is located in the first cavity (13), and a pressure release opening (14) is formed in the first cavity (13);
and a part of the pressure relief rod (21) is in sliding fit with the inner wall of the pressure relief opening (14).
3. The cover structure according to claim 2, wherein:
the pressure release valve (2) further comprises a baffle plate (23) and a spring (24);
an accommodating groove (25) is formed between the outer wall of the pressure relief opening (14) and a part of the inner wall of the first cavity (13);
the blocking piece (23) is fixed on the pressure relief rod (21) and is positioned in the first cavity (13), the first end of the spring (24) is abutted against the blocking piece (23), and the other end of the spring (24) is abutted against the bottom of the accommodating groove (25).
4. The cover structure according to claim 3, wherein:
a nut (26) is arranged on one side of the baffle plate (23);
the outer surface of the pressure relief rod (21) is provided with a rod thread (27);
the blocking piece (23) is fixedly connected with the nut (26), and the nut (26) is in threaded connection with the rod thread (27).
5. The cover structure according to claim 2, wherein:
further comprising a sealing ring (28);
a second cavity (15) is arranged at the lower part of the first cavity (13);
the second cavity (15) is located below the pressure relief opening (14), the bottom end of the pressure relief rod (21) is located in the second cavity (15), the bottom of the pressure relief rod (21) is provided with a limiting stop (211), and the sealing ring (28) is sleeved on the pressure relief rod (21) and is abutted against the limiting stop (211).
6. The cover structure according to claim 5, wherein:
also includes a plug (29);
the bottom of the pressure relief rod (21) is provided with a plug groove (212) used for accommodating the pipe plug (29), the other end of the hydrogen absorption channel (22) is communicated with the top of the plug groove (212), and the pipe plug (29) is in plug-in fit with the plug groove (212).
7. The cover structure according to claim 6, wherein:
further comprises a connecting belt (89);
the pipe plug (29) is connected with the sealing ring (28) through the connecting belt (89);
the connecting band (89), stopcock (29) and sealing ring (28) integrated into one piece.
8. A hydrogen absorption water cup is characterized in that:
comprises a cup body (4) and a cover body structure of any one of claims 1 to 7;
the periphery of a cover inner seat (11) of the cover body structure is provided with a thread wall (111), the top of a cup body (4) is provided with a cup thread (41), an annular gap (131) is formed between the thread wall (111) and the outer wall of a first cavity (13), and the top of the cup body (4) extends into the annular gap (131) to enable the cup thread (41) to be in threaded connection with the thread wall (111).
9. The hydrogen absorbing cup according to claim 8, wherein:
further comprising a sealing gasket (42);
the sealing gasket (42) is positioned in the annular gap (131), and the top of the cup body (4) is abutted against the sealing gasket (42).
10. The hydrogen absorbing cup according to claim 8, wherein:
also comprises a hydrogen generator (5) for the electrolytic production of hydrogen;
the hydrogen generator (5) is positioned at the bottom of the cup body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110432267.8A CN112932234B (en) | 2021-04-21 | 2021-04-21 | Cover body structure and hydrogen absorption water cup thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110432267.8A CN112932234B (en) | 2021-04-21 | 2021-04-21 | Cover body structure and hydrogen absorption water cup thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112932234A true CN112932234A (en) | 2021-06-11 |
| CN112932234B CN112932234B (en) | 2023-02-10 |
Family
ID=76233189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110432267.8A Active CN112932234B (en) | 2021-04-21 | 2021-04-21 | Cover body structure and hydrogen absorption water cup thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112932234B (en) |
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| CN209202818U (en) * | 2018-09-29 | 2019-08-06 | 武汉智汇平清科技有限公司 | Cup lid |
| JP3225167U (en) * | 2019-12-06 | 2020-02-13 | 正坤 古 | Portable drinking water cup with hydrogen water supply function |
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2021
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| US20080283537A1 (en) * | 2007-04-27 | 2008-11-20 | Evergreen Innovation Partners I, Lp | Spill-resistant cups with active ingredient delivery systems |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN112932234B (en) | 2023-02-10 |
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