CN106477151B - A kind of plug that dustproof cover can switch - Google Patents
A kind of plug that dustproof cover can switch Download PDFInfo
- Publication number
- CN106477151B CN106477151B CN201611170696.8A CN201611170696A CN106477151B CN 106477151 B CN106477151 B CN 106477151B CN 201611170696 A CN201611170696 A CN 201611170696A CN 106477151 B CN106477151 B CN 106477151B
- Authority
- CN
- China
- Prior art keywords
- valve rod
- dustproof cover
- plug
- switch
- dust
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2251/00—Details relating to container closures
- B65D2251/0003—Two or more closures
- B65D2251/0006—Upper closure
- B65D2251/0025—Upper closure of the 47-type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2547/00—Closures with filling and discharging, or with discharging, devices
- B65D2547/04—Closures with discharging devices other than pumps
- B65D2547/06—Closures with discharging devices other than pumps with pouring spouts ot tubes; with discharge nozzles or passages
- B65D2547/063—Details of spouts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses the plugs that a kind of dustproof cover can switch, including：The lower end of fixing sleeve is threadedly coupled with the upper surface of the bottom plate of plug shell；Locating ring is set to the inside of fixing sleeve；Turncap is set to the inside of locating ring, and single pole bolt-type ratchet mechanism is constituted between turncap and locating ring；Button is set to the inside of locating ring；A key hole is offered in the middle part of dustproof cover；The upper end of dust-proof cover extends outward to form a cricoid dust-proof cover boss；The center of bottom plate offers a perforative valve rod hole, and the valve rod core of valve rod is set to the inside of valve rod hole, and the bonnet of valve rod is butted on the lower face of bottom plate, and the upper end of valve rod core is butted on the lower face of turncap.The button and cover board of the present invention all has closing function, if still forgetting to close plug, after the lid of product covers, can be contacted with cover board, to make lid be automatically closed, prevent water excessive.
Description
Technical field
The present invention relates to the plugs that the technical field of kettle plug more particularly to a kind of dustproof cover can switch.
Background technology
Existing kettle plug is usually single-point button currently on the market, and there are two to ask for the touch-tone kettle lid of single-point
Topic, first, the switch unobvious of existing single-point button kettle lid are not turned off if being placed on plug in packet, and meeting leak goes out
Come；Secondly the water outlet of existing kettle lid is fixed, has been easy foreign matter and has entered inside kettle body, has impacted water quality.
Invention content
It is led to the problem of for above-mentioned, the purpose of the present invention is to provide the plugs that a kind of dustproof cover can switch.
To achieve the goals above, the technical solution that the present invention takes is：
A kind of plug that dustproof cover can switch, wherein including：One plug shell and a fixing sleeve, the fixing sleeve
Lower part is set to the inside of the plug shell, the upper surface screw thread of the lower end of the fixing sleeve and the bottom plate of the plug shell
Connection；One locating ring, the locating ring are set to the inside of the fixing sleeve；One turncap, the turncap are set to described
The inside of locating ring constitutes single pole bolt-type ratchet mechanism between the turncap and the locating ring；One button, the button
It is set to the inside of the locating ring, the lower end of the button is butted on the turncap；One dustproof cover, the middle part of the dustproof cover
A key hole is offered, the top of the button is set to the inside of the key hole；One dust-proof cover, the dustproof cover group
The upper end of part extends outward to form a cricoid dust-proof cover boss, and the lower face of the dust-proof cover boss is butted on described
The upper surface of the upper end of fixing sleeve, the dust-proof cover boss is butted on the lower face of the dustproof cover；One valve rod, the bottom plate
Center offer a perforative valve rod hole, the valve rod core of the valve rod is set to the inside of the valve rod hole, the valve rod
Bonnet is butted on the lower face of the bottom plate, and the upper end of the valve rod core is butted on the lower face of the turncap, when the button is pressed
When lower, the dustproof cover is set to increase by the single pole bolt-type ratchet mechanism, while the valve rod being made to decline.
The plug that above-mentioned dustproof cover can switch, wherein the upper end of the plug shell forms a pouring mouth, described anti-
Dirt lid matches with the pouring mouth.
The plug that above-mentioned dustproof cover can switch, wherein offer several pass through on the bottom plate of the plug shell
The upper surface of the water inlet worn, the valve thimble of the valve rod is butted on several water inlets.
The plug that above-mentioned dustproof cover can switch, wherein it is provided with sealing ring between the bottom plate and the valve thimble,
The sealing ring is located at the outside of several water inlets.
The plug that above-mentioned dustproof cover can switch, wherein the upper end of the valve rod core is fixed with a spring compressor, the valve
A valve rod spring is arranged on bar.
The plug that above-mentioned dustproof cover can switch, wherein one end of the valve rod spring is butted under the spring compressor
The other end of end face, the valve rod spring is butted on the upper surface of the bottom plate.
The plug that above-mentioned dustproof cover can switch, wherein a dust-proof lid spring is arranged on the dust-proof cover.
The plug that above-mentioned dustproof cover can switch, wherein the lateral surface of the plug shell offers screw thread, the spiral shell
Sealing ring is arranged on the downside of line.
The plug that above-mentioned dustproof cover can switch, wherein be provided with sealing ring between the valve rod and the valve rod hole.
The plug that above-mentioned dustproof cover can switch, wherein sealing is provided between the fixing sleeve and the dustproof cover
Circle.
As a result of above-mentioned technology, the good effect for being allowed to have compared with prior art is the present invention：
(1) present invention has a significant difference when opening and closing, and cover board sinks when closing, closes water outlet；It drinks
When, cover board rises, and opens water outlet, foreign matter can be effectively prevent to enter inside plug.
(2) button of the invention and cover board all have closing function, if still forgetting to close plug, in the lid of product
After covering, it can be contacted with cover board, to make lid be automatically closed, prevent water excessive.Plug shell and inside can switch
Mechanism can dismantle, to be cleaned when being conducive to product use.
Description of the drawings
Fig. 1 is the sectional view of the fixation nested structure for the plug that the dustproof cover of the present invention can switch.
Fig. 2 is the sectional view of the plug shell mechanism for the plug that the dustproof cover of the present invention can switch.
Fig. 3 is the sectional view of the closed state for the plug that the dustproof cover of the present invention can switch.
Fig. 4 is the sectional view of the open state for the plug that the dustproof cover of the present invention can switch.
In attached drawing：1, dustproof cover；2, sealing ring；3, dust-proof cover；31, dust-proof cover boss；4, locating ring；5, it presses
Key；6, turncap；7, dust-proof lid spring；8, fixing sleeve；9, plug shell；91, fixing sleeve positioning column；92, bottom plate；93, valve rod
Positioning column；10, spring compressor；11, valve rod spring；12, sealing ring；13, sealing ring fixinig plate；14, sealing ring；15, valve rod；16,
Sealing ring；17, valve rod core；18, sealing ring.
Specific implementation mode
The invention will be further described in the following with reference to the drawings and specific embodiments, but not as limiting to the invention.
Fig. 1 is the sectional view of the fixation nested structure for the plug that the dustproof cover of the present invention can switch, and Fig. 2 is the anti-of the present invention
The sectional view of the plug shell mechanism for the plug that dirt lid can switch, Fig. 3 are the plugs that the dustproof cover of the present invention can switch
The sectional view of closed state refers to shown in Fig. 1, Fig. 2, Fig. 3, shows a kind of plug that dustproof cover can switch, including：Plug
Subshell 9 and fixing sleeve 8, the lower part of fixing sleeve 8 are set to the inside of plug shell 9, lower end and the plug shell 9 of fixing sleeve 8
Bottom plate 92 upper surface be threadedly coupled.92 center of bottom plate of plug shell 9, which is formed, to raise up to form fixing sleeve positioning column 91,
External screw thread is offered on fixing sleeve positioning column 91, internal thread and the external screw thread on fixing sleeve positioning column 91 of fixing sleeve 8 match.
Therefore fixing sleeve 8 and plug shell 9 are detachable structure, can easily be dismantled and to being cleared up in plug shell 9.
In addition, as in preferred embodiment, the plug that dustproof cover can switch further includes：Locating ring 4,6 and of turncap
Button 5, locating ring 4 are set to the inside of fixing sleeve 8.Turncap 6 is set to the inside of locating ring 4, turncap 6 and locating ring 4
Between constitute single pole bolt-type ratchet mechanism.Button 5 is set to the inside of locating ring 4, and the lower end of button 5 is butted on turncap 6.
In addition, as in preferred embodiment, the plug that dustproof cover can switch further includes：Dustproof cover 1, dust-proof cover
3 and valve rod 15, the middle part of dustproof cover 1 offer a key hole, the top of button 5 is set to the inside of key hole.Dustproof cover group
The upper end of part 3 extends outward to form a cricoid dust-proof cover boss 31, and the lower face of dust-proof cover boss 31 is butted on admittedly
Surely the upper end of set 8, the upper surface of dust-proof cover boss 31 is butted on the lower face of dustproof cover 1.The center of bottom plate 92 upwardly extends
Valve rod positioning column 93 is formed, valve rod positioning column 93 is located at the inside of fixing sleeve positioning column 91, and one is offered on valve rod positioning column 93
Perforative valve rod hole, the valve rod core 17 of valve rod 15 are set to the inside of valve rod hole, and the bonnet of valve rod 15 is butted on the lower face of bottom plate,
The upper end of valve rod core 17 is butted on the lower face of turncap.
Further, as in preferred embodiment, the upper end of plug shell 9 forms pouring mouth 94, dustproof cover 1 and pouring mouth
94 match.Dustproof cover 1 can cover when declining closes pouring mouth 94 so that pouring mouth 94 is closed；Dustproof cover 1 can be detached from down when rising
The mouth of a river 94 can pour from pouring mouth 94 at this time.
Further, as in preferred embodiment, dustproof cover 1 and pouring mouth 94 are circle, therefore can be from pouring
Any direction of mouth 94 pours, and has the effect of preventing dust etc. from depositing in side.
Further, as in preferred embodiment, several perforative water inlets are offered on 9 bottom plates of plug shell
The upper surface of (not shown), the valve thimble of valve rod 15 is butted on several water inlet (not shown)s.Several water inlet connections
The inside of cup body, the water in cup can enter plug shell 9 by water inlet, then be poured out by pouring mouth 94.
The foregoing is merely preferred embodiments of the present invention, are not intended to limit embodiments of the present invention and protection model
It encloses.
The present invention also has on the basis of the above is implemented as follows mode：
In further embodiment of the present invention, continuing with referring to shown in Fig. 1, Fig. 2 and Fig. 3, the valve of bottom plate 92 and valve rod 17
Sealing ring 14 is provided between pole cap, sealing ring 14 is located at the outside of several water inlets.When valve rod 17 is butted on bottom plate 92, sealing
Circle 14 can play good sealing function so that the water inside cup body will not enter plug shell 9.
In further embodiment of the present invention, the upper end of valve rod core 17 is fixed with a spring compressor 10, is arranged on valve rod 15
Valve rod spring 11.
In further embodiment of the present invention, one end of valve rod spring 11 is butted on the lower face of spring compressor 10, valve rod spring
11 other end is butted on the upper surface of bottom plate.
In further embodiment of the present invention, dust-proof lid spring 7 is arranged on dust-proof cover 3.
In further embodiment of the present invention, the lateral surface of plug shell 9 offers screw thread, is arranged on the downside of screw thread close
Seal 12.For screw thread on plug shell 9 for being connect with cup body, sealing ring 12 is used to prevent the water inside cup body from shell 9
Threaded connection place is oozed out.
In further embodiment of the present invention, sealing ring 12 is fixedly connected by sealing ring fixinig plate 13 with plug shell 9.
In further embodiment of the present invention, sealing ring 18 is provided between valve rod 15 and valve rod hole.It prevents in cup body
Water is flowed out by the gap between valve rod 15 and valve rod positioning column 93.
In further embodiment of the present invention, sealing ring 16 is provided between valve rod 15 and valve rod core 17.It prevents in cup body
Water flowed out by gap between valve rod 15 and valve rod core 17.
In further embodiment of the present invention, sealing ring 2 is provided between fixing sleeve 8 and dustproof cover 1.
In further embodiment of the present invention, above-mentioned sealing ring is all made of silica gel ring.
It is constituted in further embodiment of the present invention, between turncap 6 and locating ring 4 and is similar to single pole bolt-type ball pen
Ratchet mechanism, convert intermittent move up and down of button 5 to the rotation of turncap 6.When button 5 is pressed, 1 liter of dustproof cover
It rises, spool 17 and valve rod 15 decline, and apopore (not shown) and pouring mouth 94 penetrate through, and the water in cup body can be from going out at this time
It is poured out from pouring mouth 94 through plug shell 9 in water hole；When button 5 lifts, dustproof cover 1 declines, and spool 17 and valve rod 15 rise,
Pouring mouth 94 is covered by dustproof cover 1 and is closed, and apopore is sealed by the valve thimble of valve rod 15, and the water in cup body can not flow out at this time.
In further embodiment of the present invention, when effectively pressing dustproof cover 1 when, due to dustproof cover 1 by locating ring 4 with press
Key 5 offsets, therefore can also play the effect of triggering turncap 6 and the ratchet mechanism of locating ring 4, realizes closing for pouring mouth 94
It closes.Therefore, when user forgets that depresses button 5 directly shuts cup lid, since inner wall and the dustproof cover 1 of cup lid offset,
The problem of dustproof cover 1 can also be closed, avoids leak.
It is shown in Figure 3 in further embodiment of the present invention, when needing to open when button 5 is pressed, 15 He of valve rod
Spool 17 forms horizontal system and opens.Turncap 6 rotates after bottoming out.Due in valve rod system valve rod spring 11 generate it is upward
Power, the outside inclined-plane of turncap 6 along locating ring 4 inclined-plane rotation (inclined-plane for constituting single pole bolt-type ratchet mechanism).
When turncap 6 touches the lower end of dustproof cover 1, dustproof cover 1 is up pushed away.Turncap 6 enters card slot (the i.e. structure of locating ring 4
At the card slot of single pole bolt-type ratchet mechanism) it is motionless.At this point, valve rod 15 opens water inlet, dustproof cover 1 is opened exposing pouring mouth 94 and is gone out
Water.Button 5 has larger drop, opening action apparent with dustproof cover 1.
Fig. 4 is the sectional view of the open state for the plug that the dustproof cover of the present invention can switch, shown in Figure 4,
In further embodiment of the present invention, when needing to be closed, dustproof cover 1 is pressed, 1 lower end of dustproof cover connects with turncap 6
It touches, turncap 6 starts to rotate.Turncap 6 along locating ring 4 guide groove inclined-plane up, encounter button 5 stopping, reset complete.
Dustproof cover 1 is under the action of dust-proof lid spring 7, drop-down.Dustproof cover 1 and plug shell 9 are closed, and valve rod 15 is in valve rod spring 11
Closure water shutoff is bounced under effect, closing motion is completed.
The foregoing is merely preferred embodiments of the present invention, are not intended to limit embodiments of the present invention and protection model
It encloses, to those skilled in the art, should can appreciate that all with made by description of the invention and diagramatic content
Equivalent replacement and obviously change obtained scheme, should all be included within the scope of the present invention.
Claims (8)
1. the plug that a kind of dustproof cover can switch, which is characterized in that including：
One plug shell and a fixing sleeve, the lower part of the fixing sleeve are set to the inside of the plug shell, the fixing sleeve
Lower end be threadedly coupled with the upper surface of the bottom plate of the plug shell；
One locating ring, the locating ring are set to the inside of the fixing sleeve；
One turncap, the turncap are set to the inside of the locating ring, are constituted between the turncap and the locating ring
Single pole bolt-type ratchet mechanism；
One button, the button are set to the inside of the locating ring, and the lower end of the button is butted on the turncap；
One dustproof cover offers a key hole in the middle part of the dustproof cover, and the top of the button is set to the key hole
It is internal；
The upper end of one dust-proof cover, the dust-proof cover extends outward to form a cricoid dust-proof cover boss, described
The lower face of dust-proof cover boss is butted on the upper end of the fixing sleeve, and the upper surface of the dust-proof cover boss is butted on described
The lower face of dustproof cover；
The center of one valve rod, the bottom plate offers a perforative valve rod hole, and the valve rod core of the valve rod is set to the valve rod
The inside in hole, the bonnet of the valve rod are butted on the lower face of the bottom plate, and the upper end of the valve rod core is butted on the turncap
Lower face, when it is described press key pressing when, so that the dustproof cover is increased by the single pole bolt-type ratchet mechanism, while making described
Valve rod declines；
The upper end of the plug shell forms a pouring mouth, and the dustproof cover matches with the pouring mouth；
Several perforative water inlets are offered on the bottom plate of the plug shell, the upper surface of the valve thimble of the valve rod is supported
In several water inlets.
2. the plug that dustproof cover according to claim 1 can switch, which is characterized in that the bottom plate and the valve thimble
Between be provided with sealing ring, the sealing ring is located at the outside of several water inlets.
3. the plug that dustproof cover according to claim 1 can switch, which is characterized in that the upper end of the valve rod core is fixed
There is a spring compressor, a valve rod spring is arranged on the valve rod.
4. the plug that dustproof cover according to claim 3 can switch, which is characterized in that one end of the valve rod spring is supported
In the lower face of the spring compressor, the other end of the valve rod spring is butted on the upper surface of the bottom plate.
5. the plug that dustproof cover according to claim 1 can switch, which is characterized in that be arranged on the dust-proof cover
There is a dust-proof lid spring.
6. the plug that dustproof cover according to claim 1 can switch, which is characterized in that the lateral surface of the plug shell
Screw thread is offered, sealing ring is arranged on the downside of the screw thread.
7. the plug that dustproof cover according to claim 1 can switch, which is characterized in that the valve rod and the valve rod hole
Between be provided with sealing ring.
8. the plug that dustproof cover according to claim 1 can switch, which is characterized in that the fixing sleeve with it is described dust-proof
Sealing ring is provided between lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611170696.8A CN106477151B (en) | 2016-12-16 | 2016-12-16 | A kind of plug that dustproof cover can switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611170696.8A CN106477151B (en) | 2016-12-16 | 2016-12-16 | A kind of plug that dustproof cover can switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106477151A CN106477151A (en) | 2017-03-08 |
| CN106477151B true CN106477151B (en) | 2018-10-23 |
Family
ID=58284855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611170696.8A Active CN106477151B (en) | 2016-12-16 | 2016-12-16 | A kind of plug that dustproof cover can switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106477151B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10870522B2 (en) * | 2018-08-20 | 2020-12-22 | Thermos L.L.C. | Lid with actuator for valve assembly |
| CN109319290B (en) * | 2018-11-13 | 2024-08-02 | 广州市新力实业有限公司 | Vapor/liquid sealed container cover and container, cup or kettle formed by same |
| CN112137365A (en) * | 2019-12-31 | 2020-12-29 | 胡浙峰 | Pure steel wrapped inner plug cup cover |
| CN112826294A (en) * | 2021-01-18 | 2021-05-25 | 江汉大学 | Pull-cord uncapped cup |
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|---|---|---|---|---|
| CN2836694Y (en) * | 2005-10-21 | 2006-11-15 | 吕强 | Pressing type stopper for thermos bottle |
| CN201530523U (en) * | 2009-10-31 | 2010-07-21 | 应高峰 | Bottle plug |
| JP5293848B2 (en) * | 2012-01-27 | 2013-09-18 | サーモス株式会社 | Beverage container closure |
| CN203244295U (en) * | 2013-05-08 | 2013-10-23 | 慈溪市海力丰塑料制品厂(普通合伙) | Improved switch bottle cover |
| CN203244292U (en) * | 2013-05-08 | 2013-10-23 | 慈溪市海力丰塑料制品厂(普通合伙) | Improved bottle cap |
| CN203439422U (en) * | 2013-08-15 | 2014-02-19 | 浙江自力工贸有限公司 | Button type bottle plug and cup comprising same |
| CN206318205U (en) * | 2016-12-16 | 2017-07-11 | 上海思乐得不锈钢制品有限公司 | The plug that a kind of dust cap can be switched |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3675765B2 (en) * | 2002-01-23 | 2005-07-27 | 象印マホービン株式会社 | Inner plug for air pot |
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2016
- 2016-12-16 CN CN201611170696.8A patent/CN106477151B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2836694Y (en) * | 2005-10-21 | 2006-11-15 | 吕强 | Pressing type stopper for thermos bottle |
| CN201530523U (en) * | 2009-10-31 | 2010-07-21 | 应高峰 | Bottle plug |
| JP5293848B2 (en) * | 2012-01-27 | 2013-09-18 | サーモス株式会社 | Beverage container closure |
| CN203244295U (en) * | 2013-05-08 | 2013-10-23 | 慈溪市海力丰塑料制品厂(普通合伙) | Improved switch bottle cover |
| CN203244292U (en) * | 2013-05-08 | 2013-10-23 | 慈溪市海力丰塑料制品厂(普通合伙) | Improved bottle cap |
| CN203439422U (en) * | 2013-08-15 | 2014-02-19 | 浙江自力工贸有限公司 | Button type bottle plug and cup comprising same |
| CN206318205U (en) * | 2016-12-16 | 2017-07-11 | 上海思乐得不锈钢制品有限公司 | The plug that a kind of dust cap can be switched |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106477151A (en) | 2017-03-08 |
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