CN209750654U - Vacuum cup capable of changing heat preservation performance - Google Patents
Vacuum cup capable of changing heat preservation performance Download PDFInfo
- Publication number
- CN209750654U CN209750654U CN201920137870.1U CN201920137870U CN209750654U CN 209750654 U CN209750654 U CN 209750654U CN 201920137870 U CN201920137870 U CN 201920137870U CN 209750654 U CN209750654 U CN 209750654U
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- ring
- cup
- heat dissipation
- vacuum
- inner container
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Abstract
The utility model relates to the field of vacuum cups, and discloses a vacuum cup with changeable heat preservation performance, which comprises a cup cover, a base, an inner container, an outer container and a vacuum layer, wherein a plurality of inner container heat dissipation rings are fixed on the vacuum layer surface of the inner container, and a plurality of outer container heat dissipation rings are fixed on the vacuum layer surface of the outer container; when the vacuum cup is placed, the inner container heat dissipation ring and the outer container heat dissipation ring are disconnected; when the vacuum cup is placed upside down, the inner container radiating ring and the outer container radiating ring are closed. Through the positive and negative of transferring the thermos cup place, change the connection status between inner bag heat dissipation ring, the outer bag heat dissipation ring, reach the purpose that simply changes thermal insulation performance rapidly, the utility model has the advantages of easy operation is convenient, and the effect is practical stable, especially, the utility model discloses a simple design for need not use expensive metal material can realize keeping warm fast or cooling down.
Description
Technical Field
The utility model relates to a vacuum cup, in particular to a vacuum cup capable of changing heat preservation performance.
Background
In daily life, the vacuum cup is deeply loved by people due to good hot water heat preservation effect. A vacuum cavity is arranged between the inner container and the outer container of the common vacuum cup, and the vacuum cup has good heat insulation effect. But at the same time, the heat preservation cup has the problem that the water temperature in the cup is difficult to reduce to the drinking temperature in a short time due to the good heat preservation property after hot water is added; the cup with the fast cooling and heat dissipation function in the market has poor heat preservation performance, the cup cover needs to be opened when the traditional vacuum cup needs to fast dissipate heat when boiled water, and water in the cup can be spilled out when the vacuum cup is carelessly poured, so that objects are scalded or wetted.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model aims to provide a vacuum cup which can keep warm and cool down and does not need to open a cup cover during cooling.
In order to achieve the purpose, the utility model discloses realize by following scheme:
A vacuum cup capable of changing heat preservation performance comprises a cup cover, an inner container, an outer container and a base, wherein a vacuum layer is arranged between the inner container and the outer container, a plurality of inner container heat dissipation rings are arranged on a vacuum layer of the inner container, a plurality of outer container heat dissipation rings are arranged on a vacuum layer of the outer container, and the inner container heat dissipation rings and the outer container heat dissipation rings are disconnected when the vacuum cup is placed; when the vacuum cup is placed upside down, the inner container radiating ring and the outer container radiating ring are closed.
Preferably, the upper and lower planes of each inner container heat dissipation ring and outer container heat dissipation ring are respectively kept at the same horizontal plane, and a gap layer is arranged in the middle.
Preferably, a connecting rod is arranged in the gap layer, the connecting rod can move up and down along the gap layer, the connecting rod is provided with a coupling heat conduction contact corresponding to the heat dissipation rings of the inner container and the outer container, and the lower part of the connecting rod is provided with a gravity ring.
Preferably, a buffer pad and a limit ring are fixed at the bottom of the vacuum layer, the gravity ring slides up and down along the limit ring, when the vacuum cup is placed, the gravity ring is positioned on the buffer pad, the coupling heat conduction contact piece is disconnected with the inner container heat dissipation ring and the outer container heat dissipation ring, and the water cup is used for preserving heat; when the thermos cup is inverted, the gravity ring slides along the limiting ring to drive the connecting rod to move in the clearance layer, so that the coupling heat conduction contact piece falls on the inner container heat dissipation ring and the outer container heat dissipation ring, and the thermos cup dissipates heat.
Preferably, the base is provided with a USB charging socket, a battery module and a circuit module, and the USB charging socket is connected with the data line to charge the battery.
Preferably, inner bag vacuum aspect middle part is equipped with temperature sensor, outer courage surface middle part is equipped with the display screen, and display screen shows temperature and electric quantity to scald preventing mouth, it can charge when low excessively to show the electric quantity.
Specifically, the vacuum cup comprises a cup cover, a base, an inner container, an outer container and a vacuum layer, wherein the vacuum layer is arranged between the inner container and the outer container; a plurality of inner container heat dissipation rings are fixed on the vacuum layer surface of the inner container, and a plurality of outer container heat dissipation rings are fixed on the vacuum layer surface of the outer container; when the vacuum cup is placed, the inner container heat dissipation ring and the outer container heat dissipation ring are disconnected; when the vacuum cup is placed upside down, the inner container radiating ring and the outer container radiating ring are closed.
According to a preferred embodiment of the present invention, the inner container heat dissipation ring and the outer container heat dissipation ring are arranged in parallel in pairs, and the middle section is a gap layer, a connecting rod is arranged in the gap layer, a plurality of coupled heat conduction contact pieces are arranged on the connecting rod, and a gravity ring is arranged at the bottom of the connecting rod;
According to the utility model discloses a preferred embodiment, the gravity ring can drive the connecting rod and reciprocate along the interstitial layer of the middle interval of inner bag heat dissipation ring and outer courage heat dissipation ring. When the vacuum cup is upright, the coupling heat conduction contact piece is disconnected with the inner container radiating ring and the outer container radiating ring through the action of the gravity ring, so that the vacuum cup is in a heat preservation state; when the thermos cup is placed upside down, the coupling heat conduction contact piece is connected with the inner container radiating ring and the outer container radiating ring through the action of the gravity ring, so that the thermos cup is in a cooling state.
According to the utility model discloses a preferred embodiment, the width of coupling heat conduction contact is greater than the clearance layer width of inner bag heat dissipation ring and outer courage heat dissipation ring middle zone, and is less than the thickness on vacuum layer.
According to a preferred embodiment of the present invention, when the vacuum cup is being placed, the gravity ring drives the connecting rod to move towards the base, and the coupling heat conduction contact piece is disconnected from the inner container heat dissipation ring and the outer container heat dissipation ring; when the vacuum cup is inverted, the gravity ring drives the connecting rod to move towards the direction of the cup cover, and the coupling heat conduction contact piece is connected with the inner container heat dissipation ring and the outer container heat dissipation ring.
According to the utility model discloses a preferred embodiment, vacuum layer bottom is equipped with blotter and spacing ring, the spacing ring is used for restricting the horizontal hunting range of gravity ring to coupling heat conduction contact can be connected simultaneously with inner bag cooling ring, outer courage cooling ring when guaranteeing the thermos cup to invert, the blotter is used for reducing the impact of thermos cup positive and negative inversion in-process to the cup body, noise abatement.
According to a preferred embodiment of the present invention, the height of the stop ring and the diameter of the inner ring are greater than the movable height and the diameter of the outer ring of the gravity ring.
According to the utility model discloses a preferred embodiment, the inner bag aspect on vacuum layer is equipped with temperature sensor, the surface middle part of outer courage is equipped with the display screen, temperature sensor is used for detecting the temperature, temperature and battery power in the thermos cup can be shown to the display screen.
According to a preferred embodiment of the present invention, the base includes a USB charging socket, a battery module, and a circuit module; the USB charging socket is positioned at the bottom of the cup body base and is connected with the USB charging socket through a data line to charge the battery.
according to a preferred embodiment of the utility model, the cup cover and the base are symmetrical up and down about the cup body, and the cup has aesthetic property; or the vacuum cup is provided with a cup handle, and the cup cover and the base are vertically symmetrical relative to the cup handle.
Through the technical scheme, the utility model discloses following beneficial effect has:
The utility model can connect or disconnect the inner liner radiating ring and the outer liner radiating ring by changing the positive and negative positions of the vacuum cup, thereby achieving the purpose of controlling the water temperature without opening the vacuum cup; the utility model discloses, positive thermos cup keeps warm, and inversion thermos cup heat dissipation cooling has solved the drawback that traditional thermos cup boiling water dispels the heat fast and must open the bowl cover, and the user only needs to change the positive and negative position of placing of thermos cup, just can satisfy the demand that the thermos cup provided hot water and normal atmospheric temperature water.
The utility model has the advantages of simple structure, the production of being convenient for and the use, especially, the utility model discloses a simple design for need not use expensive metal material can realize quick heat preservation or cooling.
Drawings
Figure 1 is a schematic view of a thermos cup (the cup is standing) according to one embodiment of the present invention.
Fig. 2 is a schematic structural view of the inner bladder cooling fin, the outer bladder cooling fin, the coupling cooling fin, the connecting rod, and the gravity ring according to a preferred embodiment of the present invention.
Figure 3 is the utility model discloses quick radiating thermos cup structure sketch map when the thermos cup is invertd.
Fig. 4 is an external view of a thermos cup according to a preferred embodiment of the present invention.
Description of the reference numerals
1 cup cover
2 base
21 USB interface 22 battery module that charges
23 Circuit Module
3 inner container 31 inner container radiating ring
4 outer liner 41 outer liner heat dissipation ring
5 vacuum layer
51 link 52 coupled thermally conductive contact
53 gravity ring 54 cushion
55 spacing ring
6 temperature sensor
7 display screen
8 cup handle
Detailed Description
The following describes in detail embodiments of the present invention with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
According to the drawings of fig. 1, 2 and 3, the utility model provides a vacuum cup with changeable heat preservation performance, which comprises a cup cover 1, a base 2, an inner container 3, an outer container 4 and a vacuum layer 5, wherein the vacuum layer 5 is arranged between the inner container 3 and the outer container 4; a plurality of inner container heat dissipation rings 31 are fixed on the vacuum layer surface of the inner container 3, and a plurality of outer container heat dissipation rings 41 are fixed on the vacuum layer surface of the outer container 4; when the vacuum cup is placed, the inner container heat dissipation ring 31 and the outer container heat dissipation ring 41 are disconnected; when the vacuum cup is placed upside down, the inner container heat dissipation ring 31 and the outer container heat dissipation ring 41 are closed. The utility model discloses the thermos cup realizes keeping warm when just putting the thermos cup for the first time, and the thermos cup realizes the cooling when invering the thermos cup, and this kind of thermos cup uses conveniently, simple structure, and easy popularization and application has very big commercial prospect.
According to the utility model, the inner container radiating ring 31 and the outer container radiating ring 41 can be disconnected when the vacuum cup is placed; when the vacuum cup is placed upside down, the vacuum cup with the closed inner container radiating ring 31 and the closed outer container radiating ring 41 are both in the protection range of the utility model, according to a preferred embodiment of the utility model, the inner container radiating ring 31 and the outer container radiating ring 41 are arranged in parallel in pairs, the middle section is a gap layer, a connecting rod 51 is arranged in the gap layer, a plurality of coupling heat-conducting contact pieces 52 are arranged on the connecting rod 51, and the gravity ring 53 is arranged at the bottom of the connecting rod 51; when the vacuum cup is upright, the coupling heat conduction contact piece 52 is disconnected with the inner container heat dissipation ring 31 and the outer container heat dissipation ring 41 under the action of the gravity ring 53, so that the vacuum cup is in a heat preservation state; when the vacuum cup is placed upside down, the coupling heat conduction contact piece 52 is connected with the inner container heat dissipation ring 31 and the outer container heat dissipation ring 41 under the action of the gravity ring 53, so that the vacuum cup is in a cooling state. Through the structure setting, the utility model discloses the thermos cup realizes keeping warm when need not use expensive material can realize just putting the thermos cup, and the thermos cup realizes the cooling when inverteing the thermos cup.
The vacuum layer of the inner container 3 is provided with a plurality of inner container heat dissipation rings 31, the vacuum layer of the outer container 4 is provided with a plurality of outer container heat dissipation rings 41, and the upper and lower planes of the inner container heat dissipation rings 31 and the outer container heat dissipation rings 41 are aligned; a gap layer is arranged between each pair of the inner container radiating ring 31 and the outer container radiating ring 41, a connecting rod 51 is vertically arranged in the gap layer, a coupling heat conduction contact piece 52 is arranged on the connecting rod 51 in an upward way and matched with the inner container radiating ring 31 and the outer container radiating ring 41, and the width of the coupling heat conduction contact piece 52 is larger than the width of the gap between the inner container radiating ring 31 and the outer container radiating ring 41 and is smaller than the thickness of the vacuum layer 5; one end of the bottom of the connecting rod 51 is connected with a gravity ring 53, and the gravity ring 53 can drive the connecting rod 51 to move up and down in the gap layer. According to the utility model discloses a preferred embodiment, gravity ring 53 can drive connecting rod 51 and reciprocate along the interstitial layer of inner bag cooling ring 31 and outer courage cooling ring 41's intermediate interval, gravity ring 53's shape is the ring form.
FIG. 1 shows that when the vacuum cup is placed, the gravity ring 53 drives the connecting rod 51 to move towards the base, so that the coupling heat conduction contact piece 52 is disconnected from the inner container heat dissipation ring 31 and the outer container heat dissipation ring 41, and the vacuum cup keeps warm; when the vacuum cup is inverted, the gravity ring 53 drives the connecting rod 51 to move towards the direction of the cup cover, the coupling heat conduction contact piece 52 is connected with the inner container heat dissipation ring 31 and the outer container heat dissipation ring 41, and the heat dissipation boiled water of the vacuum cup is rapidly cooled.
According to a preferred embodiment of the present invention, the width of the coupling heat conduction contact piece 52 is greater than the width of the gap layer between the inner container heat dissipation ring 31 and the outer container heat dissipation ring 41, and is smaller than the thickness of the vacuum layer.
According to a preferred embodiment of the present invention, when the vacuum cup is being placed, the gravity ring 53 drives the connecting rod 51 to move towards the base, and the coupling heat-conducting contact piece 52 is disconnected from the inner container heat-dissipating ring 31 and the outer container heat-dissipating ring 41; when the vacuum cup is inverted, the gravity ring 53 drives the connecting rod 51 to move towards the direction of the cup cover, and the coupling heat conduction contact piece 52 is connected with the inner container heat dissipation ring 31 and the outer container heat dissipation ring 41. The inner container heat dissipation ring 31, the outer container heat dissipation ring 41 and the coupling heat conduction contact piece 52 are all made of high heat conduction materials with good heat conduction and heat dissipation performance, rapid heat conduction and heat dissipation can be achieved, and heat dissipation efficiency of the vacuum cup is improved.
According to the utility model discloses a preferred embodiment, 5 bottoms on vacuum layer are equipped with blotter 54 and spacing ring 55, and gravity ring 53 is located spacing ring 55, reciprocates along spacing ring 55, spacing ring 55 is used for restricting gravity ring 53's horizontal hunting range to coupling heat conduction contact 52 can be connected simultaneously with inner bag cooling ring 31, outer courage cooling ring 41 when guaranteeing the thermos cup to invert, and the height of spacing ring 55 is greater than gravity ring 53's movable distance, and gravity ring 53 can fall when guaranteeing the thermos cup to invert, and gravity ring 53 can get back to the bottom of cup when the thermos cup is just putting. The cushion pad 54 is a common soft rubber pad, and is used for reducing the impact on the cup body in the process of inverting the vacuum cup upside down and reducing the noise.
according to the utility model discloses a preferred embodiment, the height and the inner circle diameter of spacing ring 55 are greater than the portable height and the outer lane diameter of gravity ring 53, and spacing ring 55 has restricted gravity ring 53's horizontal hunting range, and coupling heat conduction contact 52 can be connected with inner bag cooling ring 31 and outer bag cooling ring 41 simultaneously when ensureing that the thermos cup is invertd, ensures to reach the effect of heat dissipation cooling.
According to the utility model discloses a preferred embodiment, the inner bag aspect of vacuum layer 5 is equipped with temperature sensor 6, the surface middle part of outer courage 4 is equipped with display screen 7, temperature sensor 6 is used for detecting the temperature, temperature and battery power in the thermos cup can be shown to display screen 7.
According to a preferred embodiment of the present invention, the base 2 includes a USB charging socket 21, a battery module 22, and a circuit module 23; USB charging socket 21 is located the bottom of cup, is connected through data line and USB charging socket 21 and charges for the battery, battery module 23 adopts the lithium cell, display screen 7 adopts the LED display.
The base 2 of the vacuum cup is provided with a USB charging socket 21, a battery module 22 and a circuit module 23, the USB charging socket 21 is positioned at the bottom of the cup bottom 2, and the USB charging socket 21 is connected with a battery for charging through a data line. Thermos cup vacuum layer 5's inner bag aspect 31 is equipped with temperature sensor 6 and is used for detecting the temperature, and the outside middle part of cup is equipped with display screen 7, and display screen 7 can show temperature and battery power to scald the mouth when preventing that the temperature is too high, show that the power is low when crossing for battery charging.
According to a preferred embodiment of the utility model, the cup cover 1 and the base 2 are symmetrical up and down about the cup body, and have aesthetic property; or the vacuum cup is provided with a cup handle 8, and the cup cover 1 and the base 2 are vertically symmetrical relative to the cup handle 8. Adopt above-mentioned structural design for cup outward appearance unanimous when just putting and inversion, thereby overcome the utility model discloses a thermos cup is when being used for commercial occasions such as office, just puts and inverts the awkward scene of the outward appearance difference that brings, when for example having overcome the needs inversion, because just putting and the difference of inversion, leadership or customer are to the ignorance of cup, think that personal character is taken the lot without regard to details and put the cup by mistake, thereby miss leadership trust or miss cooperation chance.
The utility model discloses mainly realize just putting the time thermos cup through the change of project organization and realize keeping warm, the thermos cup realizes the cooling when inversion thermos cup, does not have special requirement to the material and the structure of the concrete part of thermos cup, for example the material and the structure of bowl cover, base, inner bag, outer courage, vacuum layer all can adopt the conventional technology in this field to realize.
Through the operation, just can reach positive and negative through changing the thermos cup and place for the thermos cup keeps warm or radiating effect fast.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be embodied in other specific forms without departing from the spirit or scope of the invention. All such variations and modifications are intended to be within the scope of the claimed invention.
Claims (10)
1. A vacuum cup capable of changing heat preservation performance is characterized by comprising a cup cover (1), a base (2), an inner container (3), an outer container (4) and a vacuum layer (5), wherein the vacuum layer (5) is arranged between the inner container (3) and the outer container (4);
A plurality of inner container heat dissipation rings (31) are fixed on the vacuum layer surface of the inner container (3), and a plurality of outer container heat dissipation rings (41) are fixed on the vacuum layer surface of the outer container (4);
When the vacuum cup is placed, the inner container radiating ring (31) and the outer container radiating ring (41) are disconnected; when the vacuum cup is placed upside down, the inner container heat dissipation ring (31) and the outer container heat dissipation ring (41) are closed.
2. the vacuum cup as claimed in claim 1, wherein the inner container heat dissipation ring (31) and the outer container heat dissipation ring (41) are arranged in parallel in pairs, and the middle interval is a gap layer, a connecting rod (51) is arranged in the gap layer, a plurality of coupled heat conduction contact pieces (52) are arranged on the connecting rod (51) in an upward row, and a gravity ring (53) is arranged at the bottom of the connecting rod (51); when the vacuum cup is upright, the coupling heat conduction contact piece (52) is disconnected with the inner container radiating ring (31) and the outer container radiating ring (41) under the action of the gravity ring (53), so that the vacuum cup is in a heat preservation state; when the vacuum cup is placed upside down, the coupling heat conduction contact piece (52) is connected with the inner container heat dissipation ring (31) and the outer container heat dissipation ring (41) under the action of the gravity ring (53), so that the vacuum cup is in a cooling state.
3. A vacuum cup according to claim 2, characterized in that the gravity ring (53) can drive the connecting rod (51) to move up and down along the gap layer in the middle interval between the inner liner heat dissipation ring (31) and the outer liner heat dissipation ring (41).
4. The vacuum cup of claim 2, wherein the width of the coupled thermally conductive contact (52) is greater than the width of the gap layer between the inner bladder heat dissipating ring (31) and the outer bladder heat dissipating ring (41) and less than the thickness of the vacuum layer.
5. The vacuum cup as claimed in claim 2, wherein when the vacuum cup is in a normal position, the gravity ring (53) drives the connecting rod (51) to move towards the base, and the coupling heat-conducting contact piece (52) is disconnected from the inner container heat-dissipating ring (31) and the outer container heat-dissipating ring (41); when the vacuum cup is inverted, the gravity ring (53) drives the connecting rod (51) to move towards the direction of the cup cover, and the coupling heat conduction contact piece (52) is connected with the inner container heat dissipation ring (31) and the outer container heat dissipation ring (41).
6. A vacuum cup as claimed in any one of claims 2 to 5, wherein a cushion pad (54) and a limit ring (55) are arranged at the bottom of the vacuum layer (5), the limit ring (55) is used for limiting the left-right swing amplitude of the gravity ring (53) so as to ensure that the coupling heat conduction contact piece (52) can be simultaneously connected with the inner container heat dissipation ring (31) and the outer container heat dissipation ring (41) when the vacuum cup is inverted, and the cushion pad (54) is used for reducing the impact on the cup body in the process of forward and reverse inversion of the vacuum cup and reducing the noise.
7. A thermos cup according to claim 6, wherein the height and inner ring diameter of the retaining ring (55) are larger than the movable height and outer ring diameter of the gravity ring (53).
8. A thermos cup according to claim 1, characterized in that the inner container layer of the vacuum layer (5) is provided with a temperature sensor (6), the middle of the outer surface of the outer container (4) is provided with a display screen (7), the temperature sensor (6) is used for detecting the water temperature, and the display screen (7) can display the water temperature and the battery power in the thermos cup.
9. A thermos cup according to any of claims 1-5 and claims 7-8, characterized in that the base (2) comprises a USB charging socket (21), a battery module (22), a circuit module (23); the USB charging socket (21) is positioned at the bottom of the base (2) and is connected with the USB charging socket (21) through a data line to charge the battery.
10. A thermos cup according to claim 1, characterized in that the lid (1) and the base (2) are symmetrical up and down with respect to the cup body, with aesthetic features; or the vacuum cup is provided with a cup handle (8), and the cup cover (1) and the base (2) are vertically symmetrical about the cup handle (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920137870.1U CN209750654U (en) | 2019-01-25 | 2019-01-25 | Vacuum cup capable of changing heat preservation performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920137870.1U CN209750654U (en) | 2019-01-25 | 2019-01-25 | Vacuum cup capable of changing heat preservation performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209750654U true CN209750654U (en) | 2019-12-10 |
Family
ID=68750440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920137870.1U Expired - Fee Related CN209750654U (en) | 2019-01-25 | 2019-01-25 | Vacuum cup capable of changing heat preservation performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209750654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109567520A (en) * | 2019-01-25 | 2019-04-05 | 李沁恬 | A kind of vacuum cup that can change thermal insulation property |
-
2019
- 2019-01-25 CN CN201920137870.1U patent/CN209750654U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109567520A (en) * | 2019-01-25 | 2019-04-05 | 李沁恬 | A kind of vacuum cup that can change thermal insulation property |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191210 Termination date: 20210125 |