CN206371856U - A kind of electrothermal pressure utensil of easy cover opening-closing mechanism - Google Patents
A kind of electrothermal pressure utensil of easy cover opening-closing mechanism Download PDFInfo
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- CN206371856U CN206371856U CN201621056350.0U CN201621056350U CN206371856U CN 206371856 U CN206371856 U CN 206371856U CN 201621056350 U CN201621056350 U CN 201621056350U CN 206371856 U CN206371856 U CN 206371856U
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- inner cap
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- pot
- closing mechanism
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Abstract
The utility model discloses a kind of electrothermal pressure utensil of easy cover opening-closing mechanism, including cooker body and pot lid, cooker body is provided with interior pot and outer pot, pot lid is provided with tooth button and transmission cover opening-closing mechanism, transmission cover opening-closing mechanism is laborsaving link gear, it can be driven and be driven by meshed transmission gear mechanism, crank connecting link link gear or cam linkage mechanism, and then drive interior pot or outer pot on the tooth button and cooker body in pot lid mutually to fasten or separate to realize closing lid and uncap.The utility model is split as the handle cap-opening mechanism that tradition is provided with to be driven cover opening-closing mechanism by the mechanical labour-saving of handle drives, other link gears such as meshed transmission gear or crank connecting link, cam mechanism can be passed through, rotation drives the tooth button of pot lid to carry out folding lid, a kind of mechanical effort-saving mechanism is replaced with equivalent to original handle arm of force, the arm of force of folding lid can be greatly shortened for the mechanism, so that the torque required for folding lid accordingly reduces, the purpose of laborsaving folding lid is reached.
Description
Technical field
The utility model is related to a kind of electrothermal pressure utensil, and in particular to a kind of electrothermal pressure device of easy cover opening-closing mechanism
Tool.
Background technology
With the development of electrical equipment culinary art industry, the product such as electric pressure pot, electric cooker has come into huge numbers of families, particularly square
The release of electric pressure pot, is even more to have pushed electric pressure pot industry to a new development height due to the high-end fashion of its profile.Disappear
The person of expense is to the convenience of this appliances, practicality, security requirement more and more higher.
The need for square pressure cooker is particularly in the market due to outward appearance, in particular for the electricity of swing handle folding lid
Pressure cooker, when being occupied in the middle part of pot cover by handle, swing rod of uncapping, which drives tooth button to rotate, will typically design long, torque when uncapping
Will be larger, resistance is excessive when often may feel that handle is uncapped when user is using such pressure cooker, laborious etc. when uncapping to make
The problem of using inconvenience.
Utility model content
Swing rod design of uncapping for traditional electrothermal pressure utensil is long, the defect such as resistance of being uncapped at handle is excessive, laborious,
According to embodiment of the present utility model, it is desirable to provide a kind of simple in construction, user can be more prone in swing handle folding lid, save
Power, practical electrothermal pressure utensil.
According to embodiment, a kind of electrothermal pressure utensil for easy cover opening-closing mechanism that the utility model is provided, including cooker body and
Pot lid, cooker body is provided with the part with buckle teeth, and the part can be interior pot or outer pot, and pot lid is provided with tooth button and transmission folding lid machine
Structure, its innovative point is, transmission cover opening-closing mechanism is laborsaving link gear, tooth button in laborsaving link gear driving pot lid and
Buckle teeth on interior pot or outer pot mutually fastens or separated to realize closing lid or uncap.The laborsaving link gear, can be by folding lid
The arm of force is greatly shortened, so that the torque required for folding lid accordingly reduces, reaches the purpose of laborsaving folding lid.This is laborsaving
Motivation structure can be driven by meshed transmission gear mechanism, crank connecting link link gear or cam linkage mechanism and is driven, and then be driven
Interior pot on tooth button and cooker body or outer pot in pot lid mutually fasten or separated to realize closing lid and uncap.
According to one embodiment, in the electrothermal pressure utensil of the foregoing easy cover opening-closing mechanism of the utility model, also set in pot lid
There is inner cap, inside cover and be provided with chute, the meshed transmission gear mechanism of one of laborsaving link gear is driving wheel and driven pulley, active
Wheel and driven pulley are meshed together by gear；Tooth button is connected with inner cap slide, can be rotated along inner cap chute；Driving wheel and
Driven pulley, which is respectively mounted, is fixed on interior cover；Driving wheel is linked together with the fastening of folding lid handle, or is made as an entirety
Part, user rotates hand-drive driving wheel by rotating folding lid, so as to drive driven pulley to rotate；The other end of driven pulley
It is connected with tooth button, and drives tooth button to be rotated along inner cap chute.
According to one embodiment, in the electrothermal pressure utensil of the foregoing easy cover opening-closing mechanism of the utility model, laborsaving gear
The crank connecting link link gear of one of structure is crank and connecting rod, and crank and connecting rod are connected together through the hinges, and relative can be turned
It is dynamic；The slide connection of tooth button and inner cap, can be rotated along inner cap chute, and crank and connecting rod are each attached to interior cover；Crank with
The fastening of folding lid handle is linked together, or is made as an one-piece parts, and user is by rotating folding lid hand-drive
Crank is rotated, so that drivening rod is rotated；The other end of connecting rod is buckled with tooth to be connected, and drives tooth button to be rotated along inner cap chute.
According to one embodiment, in the electrothermal pressure utensil of the foregoing easy cover opening-closing mechanism of the utility model, laborsaving gear
The cam linkage mechanism of one of structure is cam and push rod, and cam and push rod are linked together by cam structure, and push rod is provided with
Back-moving spring, back-moving spring can make push rod automatically restore to initial position in no external force；The chute of tooth button and inner cap is slided
Dynamic connection；Cam and push rod are covered in being each attached to；Cam is linked together with the fastening of folding lid handle, or is made as one
One-piece parts, user is rotated by rotating folding lid handle driving cam, so as to drive push rod to rotate；The other end of push rod with
Tooth button is connected, and drives tooth button to be rotated along inner cap chute.
Relative to prior art, the utility model electrothermal pressure utensil is designed as laborsaving gear by cover opening-closing mechanism is driven
Structure, can be driven by meshed transmission gear mechanism, crank connecting link link gear or cam linkage mechanism and be driven, the laborsaving gear
It is long that structure solves traditional folding lid swing rod design, the defect such as folding lid resistance is excessive, laborious at handle, equivalent to original
The arm of force by labour-saving Machine Design it is uncapped more laborsaving and light, the great convenience use of consumer.Work as pot lid
When middle part is occupied by handle, it can be driven by labour saving machine mechanism, to drive the tooth on pot cover to buckle and interior pot is interlocked or departed from,
So as to so that uncapping at handle is more laborsaving and light.
Brief description of the drawings
Fig. 1 is the STRUCTURE DECOMPOSITION of the electrothermal pressure utensil of the easy cover opening-closing mechanism according to the utility model first embodiment
Figure.
Fig. 2, Fig. 3, Fig. 4, Fig. 5 are the electrothermal pressure utensils of the easy cover opening-closing mechanism according to the utility model first embodiment
Linkage effort-saving mechanism structural representation.
Fig. 6 is the structure of the first electrothermal pressure utensil of the easy cover opening-closing mechanism according to the utility model first embodiment
Sectional view.
Fig. 7 is the structure of second of electrothermal pressure utensil of the easy cover opening-closing mechanism according to the utility model first embodiment
Sectional view
Wherein：01 is cooker body；02 is interior pot；021 is outer pot；03 is tooth button；04 is inner cap；05 is driving wheel；051 is song
Handle；052 is cam；06 is handle of uncapping；Plate is opened untill 07；08 is driven pulley；081 is connecting rod；082 is push rod；083 is reset
Spring；085 is connecting rod；09 is fixed cover.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the utility model is expanded on further.These embodiments are interpreted as only using
In explanation the utility model rather than limitation protection domain of the present utility model.Reading the content of the utility model record
Afterwards, those skilled in the art can make various changes or modifications to the utility model, and these equivalence changes and modification equally fall
Enter the utility model claim limited range.
Electrothermal pressure utensil in the utility model following examples can be electric pressure cooking saucepan, electric pressure pot etc..
As shown in Fig. 1,6,7, a kind of electrothermal pressure device for easy cover opening-closing mechanism that the utility model following examples are provided
Tool, including cooker body and pot lid, cooker body 01 are provided with the part with buckle teeth, and the part can be set in interior pot 02 or outer pot 021, pot lid
Have tooth button 03 and transmission cover opening-closing mechanism, transmission cover opening-closing mechanism be laborsaving link gear, can by meshed transmission gear mechanism,
Crank connecting link link gear or the driving transmission of cam linkage mechanism, and then drive the interior pot 02 on the tooth button 03 and cooker body in pot lid
Or the buckle teeth on outer pot 021 is mutually fastened or separated and uncapped and closing lid to realize.
Embodiment 1
In the present embodiment, laborsaving link gear is meshed transmission gear mechanism.
As shown in Fig. 1,2,6,7, a kind of electrothermal pressure utensil for easy cover opening-closing mechanism that the present embodiment is provided mainly includes
Cooker body and pot lid two large divisions, to realize that cooker body and pot lid are mutually fastened or separated, pot lid is provided with tooth button 03, inner cap 04, opened
Closing lid handle 06 and transmission cover opening-closing mechanism.Wherein be driven cover opening-closing mechanism, i.e. meshed transmission gear mechanism including driving wheel, from
Driving wheel etc..The tooth button 03 in pot lid is driven by rotating folding lid handle 06 come with the interior pot 02 in cooker body or outer pot 021
Buckle teeth mutually fastens or separated to realize folding lid.It can specifically be realized by following structure：
Cooker body 01 be provided with interior pot 02 or outer pot 021, pot lid be provided with tooth button 03 and inner cap 04, uncap handle 06 and transmission open
Closing lid components mechanism.Transmission folding cap assemblies include driving wheel 05, driven pulley 08, fixed cover 09, only open plate 07 again, such as Fig. 2,6
It is shown.
Tooth button 03 is along the circumferential direction provided with post position, and post position is connected with the slide of inner cap 04 and is limited at inner cap cunning
In groove, by driving slide of the post position along inner cap 04 to drive tooth button to be relatively rotated around inner cap.It is driving wheel 05, driven
Wheel 08 is meshed together by gear, in the fixed cover 09 that the lower end of driving wheel 05 and driven pulley 08 is provided with is fixed on together
On lid 04, fixed cover 09 can reduce driving wheel 05, driven pulley 08 with the direct friction between inner cap 04.Wherein in driving wheel 05
Between be provided with neck, neck upper end is only opened plate 07 and is located in the other end neck of driving wheel 05 provided with uncapping handle 06, can be with driving wheel
05 links together.
Driving wheel 05 with driven pulley 08 is meshed together by gear.Driven pulley 08 is connected with tooth button 03, for example, can
To be slide block mechanism connection, the post position being provided with driven pulley 08 on chute, tooth button 03 is limited in the chute of driven pulley 08,
Tooth button 03 can along driven pulley 08 chute and the relative motion of driven pulley 08；Also can together it be linked with driven pulley 08 simultaneously, that is,
It can be relatively rotated with driven pulley 08 along the chute of inner cap 04 around inner cap.As shown in Figure 1.
Action process of the present utility model is illustrated below in conjunction with accompanying drawing.
As shown in Fig. 2 being uncapped or during closing lid when rotating folding lid handle 06, because the lower end of folding lid handle 06 is integrally fixed at master
In the square hole of driving wheel 05, so the handle 06 of uncapping in pot lid will link when rotating, driving wheel 05 is rotated, driving wheel 05
Engaged with driven pulley 08 by gear, the opposite direction of driven pulley 08 will be interlocked when driving wheel 05 is rotated and is revolved together
Turn, the synchronous rotary of tooth button 03 is moved when driven pulley 08 rotates and then by post bit strip on tooth button 03, so that with cooker body 01
The buckle teeth of pot 02 or outer pot 021 fastens or departs to realize the folding lid of pot lid.
Embodiment 2
In the present embodiment, laborsaving link gear is crank connecting link link gear.
As shown in Fig. 1,3,6,7, the meshed transmission gear mechanism in embodiment 1 is replaced with into crank connecting link link gear：
Transmission cover opening-closing mechanism includes crank 051, connecting rod 081, gear fixed cover 09 and only opens plate 07.Specifically can be real by following structure
It is existing：
Tooth button 03 is along the circumferential direction provided with post position, and post position is connected with the slide of inner cap 04 and is limited at inner cap 04
Chute in, can be slided in the chute of inner cap 04.Crank 051 and connecting rod 081 are by together with hinge-coupled, crank 051 and even
The fixed cover 09 that the lower end of bar 081 is provided with is fixed on inner cap 04 together, and fixed cover 09 can reduce swing rod between inner cap 04
Direct friction.Neck is wherein provided with the middle of crank 051, neck upper end only opens plate 07 and be located at crank 051 provided with handle 06 of uncapping
In other end neck, can together it be linked with crank 051.
Post position on tooth button 03 is connected with connecting rod 081 simultaneously, as shown in Figure 3.Connecting rod 081 and tooth buckle 03 connection, can be with
It is slide block mechanism connection, chute is provided with connecting rod 081, the post position of tooth button 03 is limited in the chute of connecting rod 081 simultaneously, tooth
Button can along connecting rod 081 chute and the relative motion of connecting rod 081；Simultaneously can also with connecting rod 081 along the chute of inner cap 04 around inner cap
Relatively rotate, namely tooth button 03 can together link with connecting rod 081.
The present embodiment can be to be further improved on the basis of above-mentioned, i.e., one biography of increase in crank connecting link link gear
Dynamic component：Connecting rod 085, as shown in Figure 4.Crank 051 and connecting rod 085 are connected together through the hinges, it is possible to relative to turn
It is dynamic；The other end and connecting rod 081 of connecting rod 085 are connected together through the hinges, and can also be relatively rotated.
Action process of the present utility model is illustrated respectively below in conjunction with accompanying drawing 3 and accompanying drawing 4.
As shown in figure 3, being uncapped or during closing lid when rotating folding lid handle 06, because the lower end of folding lid handle 06 is integrally fixed at song
In the square hole of handle 051, so the crank 051 that will link is rotated when the handle 06 of uncapping in pot lid is rotated, another crank 051 with
Connecting rod 081 is connected through the hinge, and the opposite direction of connecting rod 081 that will be linked when crank 051 is rotated is rotated together, connecting rod
During 081 rotation and then tooth button 03 is driven to rotate, so as to fasten or depart from the buckle teeth on the interior pot 02 or outer pot 021 in cooker body 01
To realize the folding lid of pot lid.
As shown in figure 4, when rotation handle 06 of uncapping is uncapped or during closing lid, the handle 06 of uncapping in pot lid will join when rotating
Dynamic crank 051 is rotated, and another crank 051 is connected through the hinge with connecting rod 085, will join when crank 051 is rotated
Dynamic connecting rod 085 is rotated together；Connecting rod 085 and connecting rod 081 are also what is be connected through the hinge, when connecting rod 085 is rotated
When the connecting rod 081 that will link rotated together；When connecting rod 081 rotates and then tooth is driven to buckle 03 and rotate, so that with cooker body 01
Interior pot 02 or outer pot 021 on buckle teeth fasten or depart to realize the folding lid of pot lid.
Embodiment 3
In the present embodiment, laborsaving link gear is cam linkage mechanism.
As shown in Fig. 1,5,6,7, the meshed transmission gear mechanism in embodiment 1 is replaced with into cam linkage mechanism：Transmission
Cover opening-closing mechanism includes cam 052, push rod 082, fixed cover 09 and only opens plate 07.It can specifically be realized by following structure：
Tooth button 03 is along the circumferential direction provided with post position, and post position is connected with the slide of inner cap 04 and is limited at inner cap cunning
In groove, it can be moved along the chute of inner cap 04.The active force that cam 052 and push rod 082 are applied by back-moving spring 083 is close to all the time
Together, the fixed cover 09 that the lower end of cam 052 and push rod 082 is provided with is fixed on inner cap 04 together, and fixed cover 09 can be reduced
Swing rod is with the direct friction between inner cap 04.Neck is provided with the middle of its cam 052, neck upper end is provided with handle 06 of uncapping.Top
The lower end of bar 082 is provided with back-moving spring 083, and the active force of back-moving spring 083 is acted on push rod 082 all the time.
Push rod 082 is connected with tooth button 03, and it can be slide block mechanism connection that it, which is connected,.Chute, tooth are provided with push rod 082
Button 03 on post position simultaneously be limited in the chute of push rod 082, tooth button 03 can along push rod 082 chute and the phase of push rod 082
To motion；It can also be relatively rotated simultaneously with push rod 082 along the chute of inner cap 04 around inner cap, you can linked together with push rod 082, such as
Shown in Fig. 5.
Action process of the present utility model is illustrated below in conjunction with accompanying drawing.
As shown in figure 5, when rotation handle 06 of uncapping is opened or during closing lid, because uncapping, the lower end of handle 06 is integrally fixed at cam 052
Square hole in, so in pot lid uncap handle 06 rotate when will double-linked cam 052 rotated, due to cam 052 with push up
Bar 082 is that, by cam linkage, the push rod 082 that will be linked when cam 052 is rotated carries out rotary oscillation, push rod 082 together
Back-moving spring 083 is had, can be played reset role.Push rod 082 rotates and then drives tooth button 03 to rotate, so that with cooker body 01
Buckle teeth on interior pot 02 or outer pot 021 fastens or departs to realize the folding lid of pot lid.
Claims (11)
1. a kind of electrothermal pressure utensil of easy cover opening-closing mechanism, including cooker body (01) and pot lid, cooker body (01) are provided with buckle teeth
Part, the part is interior pot (02) or outer pot (021), and pot lid is provided with tooth button (03) and is driven cover opening-closing mechanism, it is characterized in that,
Transmission cover opening-closing mechanism is laborsaving link gear, interior on the tooth button (03) and cooker body in the laborsaving link gear driving pot lid
The buckle teeth of pot (02) or outer pot (021) mutually fastens or separated to realize closing lid or uncap.
2. the electrothermal pressure utensil of easy cover opening-closing mechanism according to claim 1, it is characterized in that, the laborsaving link gear
For meshed transmission gear mechanism.
3. the electrothermal pressure utensil of easy cover opening-closing mechanism according to claim 1, it is characterized in that, the laborsaving link gear
For crank connecting link link gear.
4. the electrothermal pressure utensil of easy cover opening-closing mechanism according to claim 1, it is characterized in that, the laborsaving link gear
For cam linkage mechanism.
5. the electrothermal pressure utensil of easy cover opening-closing mechanism according to claim 2, it is characterized in that, inner cap is additionally provided with pot lid
(04) chute, is provided with inner cap (04), the laborsaving link gear is meshed transmission gear mechanism, meshed transmission gear mechanism bag
Driving wheel (05) and driven pulley (08) are included, driving wheel (05) and driven pulley (08) pass through gear engagement transmission motion；Tooth button (03)
It is connected, can be rotated along inner cap (04) chute with inner cap (04) slide；Driving wheel (05) and driven pulley (08) are respectively mounted fixation
On inner cap (04)；The fastening of driving wheel (05) and folding lid handle (06) is linked together, or is made as an one-piece parts,
User drives driving wheel (05) to rotate by rotating folding lid handle (06), so as to drive driven pulley (08) to rotate；Driven pulley
(08) the other end is connected with tooth button (03), and drives tooth button (03) to be rotated along inner cap chute.
6. the electrothermal pressure utensil of easy cover opening-closing mechanism according to claim 5, it is characterized in that, driven pulley (08) and tooth button
(03) connection is slide block mechanism connection, is provided with chute on driven pulley (08), chute of the tooth button (03) along driven pulley (08) with
Driven pulley (08) relative motion, or relatively rotated with driven pulley (08) along inner cap (04) chute around inner cap.
7. the electrothermal pressure utensil of easy cover opening-closing mechanism according to claim 3, it is characterized in that, inner cap is additionally provided with pot lid
(04) chute, is provided with inner cap (04), the laborsaving link gear is crank connecting link link gear, the crank connecting link gear
Structure includes crank (051) and connecting rod (081), and crank (051) and connecting rod (081) are connected together through the hinges；Tooth button (03) with
The slide connection of inner cap (04), can be rotated, crank (051) and connecting rod (081) are each attached to inner cap along inner cap (04) chute
(04) on；Crank (051) is linked together with folding lid handle (06) fastening, or is made as an one-piece parts, user
Crank (051) is driven to rotate by rotating folding lid handle (06), so that drivening rod (081) is rotated；Connecting rod (081) it is another
End is connected with tooth button (03), and drives tooth button (03) to be rotated along inner cap (04) chute.
8. the electrothermal pressure utensil of easy cover opening-closing mechanism according to claim 7, it is characterized in that, the crank connecting link linkage
Mechanism is made up of crank (051), connecting rod (081), connecting rod (085), and crank (051) and connecting rod (085) are connected through the hinge
Together；The other end and connecting rod (081) of connecting rod (085) are connected together through the hinges；User is by rotating folding lid
Handle (06) driving crank (051) is rotated, and passes through connecting rod (085) drivening rod (081) synchronous axial system.
9. the electrothermal pressure utensil of easy cover opening-closing mechanism according to claim 7, it is characterized in that, connecting rod (081) is buckled with tooth
(03) connection is slide block mechanism connection, and chute, chute and company of the tooth button (03) along connecting rod (081) are provided with connecting rod (081)
Bar (081) relative motion, or relatively rotated with connecting rod (081) along inner cap (04) chute around inner cap.
10. the electrothermal pressure utensil of easy cover opening-closing mechanism according to claim 4, it is characterized in that, it is additionally provided with pot lid interior
Cover (04), chute is provided with inner cap (04), the laborsaving link gear is cam linkage mechanism, and the cam linkage mechanism is convex
(052) and push rod (082) are taken turns, cam (052) and push rod (082) are linked together by cam structure, and push rod (082) is provided with
Back-moving spring (083), back-moving spring makes push rod (082) automatically restore to initial position in no external force；Tooth button (03) with it is interior
Cover the slide connection of (04)；Cam (052) and push rod (082) are each attached on inner cap (04)；Cam (052) and folding lid
Handle (06) fastening is linked together, or is made as an one-piece parts, and user is driven by rotating folding lid handle (06)
Moving cam (052) is rotated, so as to drive push rod (082) to rotate；The other end of push rod (082) is connected with tooth button (03), and drives
Dynamic tooth button (03) is rotated along inner cap (04) chute.
11. the electrothermal pressure utensil of easy cover opening-closing mechanism according to claim 10, it is characterized in that, push rod (082) and tooth
The connection of button (03) is slide block mechanism connection, is provided with chute on push rod (082), chute of the tooth button (03) along push rod (082) with
Push rod (082) relative motion, or relatively rotated with push rod (082) along inner cap (04) chute around inner cap.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621056350.0U CN206371856U (en) | 2016-09-14 | 2016-09-14 | A kind of electrothermal pressure utensil of easy cover opening-closing mechanism |
| PCT/EP2017/072400 WO2018050520A1 (en) | 2016-09-14 | 2017-09-07 | Electrothermal pressure appliance with mechanism for easy opening and closing of the lid |
| KR1020197010605A KR20190053900A (en) | 2016-09-14 | 2017-09-07 | Heat and pressure devices with a mechanism for easy opening and closing of the lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621056350.0U CN206371856U (en) | 2016-09-14 | 2016-09-14 | A kind of electrothermal pressure utensil of easy cover opening-closing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206371856U true CN206371856U (en) | 2017-08-04 |
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ID=59402425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621056350.0U Active CN206371856U (en) | 2016-09-14 | 2016-09-14 | A kind of electrothermal pressure utensil of easy cover opening-closing mechanism |
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| Country | Link |
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| CN (1) | CN206371856U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107811498A (en) * | 2016-09-14 | 2018-03-20 | 飞利浦（嘉兴）健康科技有限公司 | A kind of electrothermal pressure utensil of easily cover opening-closing mechanism |
-
2016
- 2016-09-14 CN CN201621056350.0U patent/CN206371856U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107811498A (en) * | 2016-09-14 | 2018-03-20 | 飞利浦（嘉兴）健康科技有限公司 | A kind of electrothermal pressure utensil of easily cover opening-closing mechanism |
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