CN211894159U - Negative ion vacuum storage box - Google Patents
Negative ion vacuum storage box Download PDFInfo
- Publication number
- CN211894159U CN211894159U CN202020389542.3U CN202020389542U CN211894159U CN 211894159 U CN211894159 U CN 211894159U CN 202020389542 U CN202020389542 U CN 202020389542U CN 211894159 U CN211894159 U CN 211894159U
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- Prior art keywords
- vacuum
- pipeline
- negative ion
- box body
- upper cover
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- 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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
- B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
- B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
- B65D81/2038—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum with means for establishing or improving vacuum
-
- 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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/245—Internal membrane, floating cover or the like isolating the contents from the ambient atmosphere
-
- 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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/30—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants by excluding light or other outside radiation
Abstract
The utility model discloses an anion vacuum storage tank, including box and lock in upper cover on the box, still include in the upper cover: the negative ion generator is fixedly arranged in the clamping groove of the upper cover and is connected into the box body through a negative ion pipeline; the air release valve is fixed in the upper cover, one end of the air release valve is connected to the box body through an air release pipeline, and the other end of the air release valve is communicated with the air; the vacuum pump is fixed in the upper cover, and the air inlet end of the vacuum pump is connected into the box body through a vacuum pipeline; the negative pressure detection element is connected into the box body through a negative pressure pipeline and is used for detecting the pressure in the box body; and the button switch is electrically connected with the control device and the power supply. The utility model discloses, through having optimized the structure of vacuum storage tank, practice thrift the storage space, promote space utilization, avoided bacterial growing in the food effectively, made damp and go mildy, by negative ion generator to the box in annotating negative oxygen ion, exterminate the microorganism on food surface and other toxins.
Description
Technical Field
The utility model relates to a storage tank technical field, concretely relates to anion vacuum storage tank.
Background
Most of rice sold in the market at present is packaged by vacuum plastic bags, and rice can be stored in a rice jar or a rice bag after being unsealed, so that the rice can not be stored in vacuum any more, and is easy to be affected with damp, mildew and deteriorate, particularly in the rainy season. The rice can generate aflatoxin after long-time molding, and experiments prove that the aflatoxin is one of the strongest substances in the chemical carcinogens found at present, mainly damages the liver function, has strong carcinogenic, teratogenic and mutagenic effects, can cause liver cancer, and can also induce bone cancer, kidney cancer, rectal cancer, breast cancer and ovarian cancer.
In the prior art, chinese patent CN102627174B discloses an empty rice storage box, which includes a box body and a drawer capable of being pulled, and the box body is further provided with a rice outlet box, a vacuum device and a rice outlet device, and the rice can be stored in a vacuum state by the vacuum device, so as to prevent the rice from getting damp and mildewing, however:
(1) when the rice storage box is opened for use, bacteria can hardly enter the rice storage box, and the rice storage box still causes harm to the body of a user;
(2) the vacuum assembly is arranged on the side wall of the box body, the structure is complex, the installation and the maintenance are inconvenient, and the storage space of the box body is occupied.
In view of this, it is urgently needed to improve the structure of the existing vacuum storage box, facilitate the installation and improve the sterilization and disinfection functions of the vacuum storage box.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the existing vacuum storage box has complex structure, inconvenient installation and maintenance and poor sterilization and disinfection effect.
In order to solve the technical problem, the utility model provides an anion vacuum storage tank, including box and lock in upper cover on the box, its characterized in that still includes in the upper cover:
the negative ion generator is fixedly arranged in the clamping groove of the upper cover and is connected into the box body through a negative ion pipeline;
the air release valve is fixed in the upper cover, one end of the air release valve is connected to the box body through an air release pipeline, and the other end of the air release valve is communicated with the air;
the vacuum pump is fixed in the upper cover, and the air inlet end of the vacuum pump is connected into the box body through a vacuum pipeline;
the negative pressure detection element is connected into the box body through a negative pressure pipeline and is used for detecting the pressure in the box body;
a push button switch electrically connected to the control device and the power source and configured to:
a button switch is turned on, the control device controls the vacuum pump to be turned on, and when the negative pressure detection element detects that a set value is reached, the vacuum pump is turned off; starting the negative ion generator in a delayed manner according to preset time;
and closing the button switch, and controlling the air release valve to be opened by the control device.
In the above technical solution, the push button switch includes:
the switch element is electrically connected with the control device and the power supply and is used for controlling the opening and closing of the negative ion generator, the vacuum pump and the air release valve;
the spring lock device comprises a spring and a ball catch, wherein the ball catch is arranged in the spring.
In the technical scheme, the buckle plate is arranged above the upper cover, and when the button switch is closed, the top surface of the button switch is flush with the top surface of the buckle plate.
In the above technical scheme, a check valve is arranged on the vacuum pipeline.
In the above technical scheme, the negative pressure pipeline is connected with the vacuum pipeline through a tee joint and is connected into the box body, and the one-way valve is arranged between the vacuum pump and the tee joint.
In the technical scheme, the start time of the anion generator reaches a first preset time, and then the low power consumption is achieved.
In the above technical scheme, after the starting time of the vacuum pump reaches a second preset time, if the switch of the negative pressure pipeline is not started, the button switch is controlled to be turned off.
In the above technical solution, the switch and the control device are disposed on a switch base, the switch base includes a plurality of support columns, and the control device is fixed on the support columns through bolts.
In the technical scheme, the negative ion pipeline is connected with the gas discharge pipeline through a tee joint and is connected into the box body.
In the above technical scheme, the side wall of the box body is provided with a transparent or semitransparent observation window.
Compared with the prior art, the utility model discloses an anion vacuum storage tank, through the opening of control switch button control vacuum pump, and when negative pressure detecting element detects and reachs the setting value, close the vacuum pump, thereby through having optimized the structure of vacuum storage tank, practice thrift the storage space, promote space utilization, the vacuum pump is vacuumed through the vacuum pipe in with the box, make food can store under vacuum state, avoid bacterial growing in the food effectively, the mould that wets, negative oxygen ion is filled to the box by anion generator, exterminate the microorganism and other toxins on food surface, when carrying out fruit storage, can make the fruit vegetables carry out the enzyme passivation of metabolism, thereby reduce the respiratory intensity of fruit vegetables, weaken the production of fruit ripening agent ethylene, also make the food that stores in the box contain the anion, have the purification effect to human blood, the cell has effects of reactivating, accelerating blood circulation, and enhancing immunity.
Drawings
Fig. 1 is a perspective view of an anion vacuum storage box of the present invention;
FIG. 2 is an exploded view of an anion vacuum storage box according to the present invention;
FIG. 3 is an exploded view of the upper lid portion of an anion vacuum storage case of the present invention;
fig. 4 is an exploded view of another view of an anion vacuum storage tank of the present invention;
fig. 5 is a perspective view of a buckle portion of the negative ion vacuum storage box of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:
100 upper cover, 101 anion generator, 102 anion pipeline, 103 air release valve, 104 air release pipeline, 105 vacuum pump, 106 vacuum pipeline, 107 pressure detection element, 108 anion pipeline, 109 button switch, 110 control device, 111 power supply, 112 switch element, 113 lock device, 1131 spring, 1132 ball-bumping part, 1133 buckle part, 114 one-way valve, 115 buckle, 116 observation window, 117 power supply switch, 118 support column, 119 switch groove, 120 power supply groove, 121 anion groove, 200 box.
Detailed Description
The utility model provides an anion vacuum storage tank can realize optimizing structure, simple to operate, and the effectual purpose of disinfection. The invention is described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1 to 5, the utility model provides a pair of anion vacuum storage box, including box 200 and its lock in the upper cover 100 on box 200, its characterized in that still includes in the upper cover 100:
the anion generator 101 is fixedly arranged in the clamping groove of the upper cover 100 and is connected into the box body 200 through an anion pipeline 102;
a release valve 103 fixed in the upper cover 100, one end of which is connected to the box body 200 through a release pipeline 104, and the other end of which is communicated with the air;
a vacuum pump 105 fixed in the upper cover 100, an air inlet end of which is connected to the box body 200 through a vacuum pipeline 106;
a negative pressure detecting element 107 connected to the case 200 through a negative pressure line 108 for detecting the pressure in the case 200;
the push switch 109 is electrically connected to the control device 110 and the power supply 111, and is configured to:
the button switch 109 is turned on, the control device 110 controls the vacuum pump 105 to be turned on, and when the negative pressure detection element 107 detects that the set value is reached, the vacuum pump 105 is turned off; starting the negative ion generator 101 in a delayed manner according to preset time;
the button switch 109 is closed, and the control device 110 controls the air release valve 103 to open.
In this embodiment, the vacuum pump 105, the negative ion generator 101, the air release valve 103, and other components are integrally disposed in the upper cover 100, so as to optimize the structure of the vacuum storage box, save the storage space, improve the space utilization rate, the vacuum pump 105 vacuums the interior of the box body 200 through the vacuum pipeline 106, so that the food can be stored in a vacuum state, the breeding, the wetting and the mildewing of bacteria in the food are effectively avoided, the negative ion generator 101 injects negative oxygen ions into the box body 200 to kill microorganisms and other toxins on the surface of the food, when fruits are stored, metabolic enzymes of the fruits and vegetables can be inactivated, so that the respiration intensity of the fruits and vegetables is reduced, the generation of a fruit ripener ethylene is weakened, food stored in the box body 200 contains negative ions, has effects in purifying blood, reviving cells, promoting blood circulation, and enhancing immunity.
Specifically, the vacuum pump 105 is controlled to be turned on by controlling the switch button, and when the negative pressure detecting element 107 detects that the set value is reached, the vacuum pump 105 is turned off, so that the interior of the box body 200 is in a vacuum state, the stability and reliability of the vacuum storage box are improved, and negative oxygen ions are added into the box body 200 by the negative ion generator 101 after the interior of the box body 200 is vacuumized.
By controlling the control button switch 109, the air release valve 103 is controlled to be opened, and air enters the box body 200 through the air release pipeline 104, so that the upper cover 100 can be opened, and the storage box can be opened.
As shown in fig. 3 and 4, a power switch 117 is further disposed between the power source 111 and the control device 110, the power source 111 is fixedly disposed in the power source groove 120, the anion generator 101 is fixedly disposed in the anion groove 121, and the switch is disposed at a middle position of the upper cover 100 and is embedded in the switch groove 119.
In an embodiment of the present invention, preferably, the button switch 109 includes:
the switch element 112 is electrically connected with the control device 110 and the power supply 111 and is used for controlling the opening and closing of the negative ion generator 101, the vacuum pump 105 and the air release valve 103;
the latch device 113 includes a spring 1131 and a ball catch, and the ball catch is disposed in the spring 1131.
As shown in fig. 4 and 5, in this embodiment, the latch catch is disposed in the ring shape of the spring 1131, the latch catch is divided into a catch portion 1133 and a latch portion 1132, the catch portion 1133 is fixedly disposed at the middle portion of the upper cover 100, the latch portion 1132 is fixedly disposed on the button, the button is pressed, the latch portion 1132 is caught in the catch portion 1133, and the latch portion 1132 is ejected by the spring 1131 when the button is pressed again.
Wherein, power 111 can adopt ordinary battery, makes things convenient for the dismouting to change, reduce cost.
In an embodiment of the present invention, it is preferable that a snap plate 115 is disposed above the upper cover 100, and when the button switch 109 is closed, the top surface thereof is flush with the top surface of the snap plate 115.
In this embodiment, when the button switch 109 is turned off, the top surface of the button is flush with the top surface of the upper cover 100, so that the plane of the upper cover 100 forms a flat plane, which is beautiful and convenient to place.
In one embodiment of the present invention, a check valve 114 is preferably disposed on the vacuum line 106.
In this embodiment, the one-way valve 114 is disposed on the vacuum pipeline 106, so that air in the box body 200 can only be exhausted from the vacuum pipeline 106, but not enter from the vacuum pipeline 106, so as to ensure that air does not flow back into the box body 200 when the vacuum operation is performed on the interior of the box body 200, which is also beneficial to preventing air from entering the box body 200 from the vacuum pipeline 106 when food is stored, and thus, the stability and reliability of the vacuum storage box are improved.
As shown in fig. 3 and 4, in an embodiment of the present invention, preferably, the negative pressure pipeline 108 is connected to the vacuum pipeline 106 through a tee joint and connected to the box 200, and the check valve 114 is disposed between the vacuum pump 105 and the tee joint.
In this embodiment, the negative pressure pipeline 108 and the vacuum pipeline 106 are connected by a tee joint, and the other end is connected to the inside of the box 200, so that the negative pressure pipeline 108 is equal to the air pressure inside the box 200, and the air pressure inside the negative pressure pipeline 108 is detected by the negative pressure detecting element 107, so as to detect the air pressure inside the box 200, so that the inside of the box 200 is kept in a vacuum state, and the control device 110 controls the negative pressure detecting element 107 to turn off the vacuum pump 105 when detecting that a set value is reached.
In an embodiment of the present invention, preferably, the activation time of the negative ion generator 101 reaches a first preset time, and then the low power consumption is entered.
In this embodiment, after the activation time of the anion generator 101 reaches the first preset time, it is confirmed that the addition of the anions in the box 200 is completed, and the vacuum storage box is controlled to enter the low power consumption state, so as to reduce the power consumption, reduce the cost for using the storage box, and improve the user experience.
For example, after the button switch 109 is pressed, the vacuum pump 105 starts to operate and time, and then the operation is delayed until the switching action of the negative pressure pipeline is conducted, the period of time is 30% of the vacuum pumping time, then the vacuum pump 105 stops operating, the operation of the negative ion generator 101 is started, the operation time of the negative ion generator 101 is 60% of the vacuum pumping time, that is, if the vacuum pumping time is not 100 seconds, the operation time of the negative ion generator 101 is 60 seconds.
In an embodiment of the present invention, preferably, after the vacuum pump 105 is turned on for a second preset time, if the switch of the negative pressure pipeline is not turned on, the control button switch 109 is turned off.
In this embodiment, after the time length of the vacuum pump 105 being turned on reaches the second preset time length, if the switch of the negative pressure pipeline is not turned on, it is determined that there is an air leakage in the vacuum pipeline 106 or the vacuum pump 105, the control button switch 109 is turned off, and meanwhile, an alarm prompt may be performed to prompt a user to perform troubleshooting and maintenance on the storage box.
For example, the second preset time period is set to be 3 minutes, when the vacuum pump 105 works and vacuumizes, if the vacuum pump continuously works for 3 minutes and the switch of the negative pressure pipeline still does not work, it is determined that the air leakage phenomenon exists in the storage box, and the vacuum pump 105 is controlled to stop working.
In an embodiment of the present invention, preferably, the switch and control device 110 is disposed on a switch base, the switch base includes a plurality of supporting pillars 118, and the control device 110 is fixed on the supporting pillars 118 by bolts.
In this embodiment, through setting up switch and controlling means 110 in support column 118 to through the bolt fastening, promoted the firm nature and the stability that controlling means 110 was fixed effectively, avoid the problem that controlling means 110 drops, and easy to assemble dismantlement is favorable to the maintenance.
In one embodiment of the present invention, the negative ion pipe 102 is preferably connected to the gas discharge pipe 104 by a tee joint and is connected to the box 200.
In this embodiment, the negative ion pipe 102 is connected to the gas release pipe 104 through a tee joint, and the other end thereof is connected to the box 200, when the lid 100 is opened, the inside of the box 200 is in a vacuum state, the lid 100 cannot be opened, and air is injected into the box 200 through the gas release valve 103, so that the internal pressure and the external pressure are equal, and the lid 100 is opened to take out the food in the box 200.
As shown in fig. 1, in one embodiment of the present invention, the side wall of the case 200 is preferably provided with a transparent or translucent viewing window 116.
In this embodiment, the transparent or translucent viewing window 116 is provided on the side wall of the case 200, so that the user can easily view the storage condition of the food in the case 200, and the scale can be provided on the viewing window 116.
The utility model discloses an anion vacuum storage tank, control the opening of vacuum pump through control switch button, and when negative pressure detecting element detects and reachs the setting value, close the vacuum pump, thereby through having optimized the structure of vacuum storage tank, practice thrift the storage space, promote space utilization, the vacuum pump is vacuumed in the box through vacuum line, make food can store under vacuum state, avoid bacterial growing in the food effectively, the mould that wets, negative oxygen ion is filled to the box by anion generator, kill the microorganism and other toxins on food surface, when carrying out fruit storage, can make the fruit vegetables carry out the metabolic enzyme passivation, thereby reduce the respiratory intensity of fruit vegetables, weaken the production of fruit ripener ethylene, also make the food that stores in the box contain the anion, have the purification effect to human blood, cell revival effect, accelerating blood circulation and enhancing immunity.
In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The present invention is not limited to the above-mentioned best mode, and any person should learn the structural change made under the teaching of the present invention, all with the present invention has the same or similar technical solution, all fall into the protection scope of the present invention.
Claims (10)
1. The utility model provides an anion vacuum storage case, includes box and lock in upper cover on the box, its characterized in that still includes in the upper cover:
the negative ion generator is fixedly arranged in the clamping groove of the upper cover and is connected into the box body through a negative ion pipeline;
the air release valve is fixed in the upper cover, one end of the air release valve is connected to the box body through an air release pipeline, and the other end of the air release valve is communicated with the air;
the vacuum pump is fixed in the upper cover, and the air inlet end of the vacuum pump is connected into the box body through a vacuum pipeline;
the negative pressure detection element is connected into the box body through a negative pressure pipeline and is used for detecting the pressure in the box body;
a push button switch electrically connected to the control device and the power source and configured to:
a button switch is turned on, the control device controls the vacuum pump to be turned on, and when the negative pressure detection element detects that a set value is reached, the vacuum pump is turned off; starting the negative ion generator in a delayed manner according to preset time;
and closing the button switch, and controlling the air release valve to be opened by the control device.
2. The negative ion vacuum storage compartment of claim 1, wherein the push button switch comprises:
the switch element is electrically connected with the control device and the power supply and is used for controlling the opening and closing of the negative ion generator, the vacuum pump and the air release valve;
the spring lock device comprises a spring and a ball catch, wherein the ball catch is arranged in the spring.
3. The negative ion vacuum storage box according to claim 1, wherein a buckle plate is arranged above the upper cover, and when the button switch is turned off, the top surface of the button switch is flush with the top surface of the buckle plate.
4. The negative ion vacuum storage case of claim 1, wherein the vacuum pipeline is provided with a one-way valve.
5. The negative ion vacuum storage box according to claim 4, wherein the negative pressure pipeline is connected to the vacuum pipeline through a tee and is connected to the box body, and the check valve is disposed between the vacuum pump and the tee.
6. The anion vacuum storage box according to claim 1, wherein the anion generator is powered on for a first preset time period and then powered on for a lower power consumption.
7. The negative ion vacuum storage box according to claim 1, wherein after the vacuum pump is turned on for a second preset time, if the switch of the negative pressure pipeline is not turned on, the button switch is controlled to be turned off.
8. The negative ion vacuum storage box according to claim 1, wherein the switch and the control device are disposed on a switch base, the switch base comprises a plurality of support columns, and the control device is fixed on the support columns through bolts.
9. The negative ion vacuum storage box according to claim 1, wherein the negative ion pipeline is connected with the gas discharge pipeline through a tee joint and is connected into the box body.
10. The negative ion vacuum storage box according to claim 1, wherein the side wall of the box body is provided with a transparent or semitransparent viewing window.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020389542.3U CN211894159U (en) | 2020-03-24 | 2020-03-24 | Negative ion vacuum storage box |
| KR1020210017261A KR20210119288A (en) | 2020-03-24 | 2021-02-08 | Negative ion vacuum storage box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020389542.3U CN211894159U (en) | 2020-03-24 | 2020-03-24 | Negative ion vacuum storage box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211894159U true CN211894159U (en) | 2020-11-10 |
Family
ID=73270009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020389542.3U Active CN211894159U (en) | 2020-03-24 | 2020-03-24 | Negative ion vacuum storage box |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20210119288A (en) |
| CN (1) | CN211894159U (en) |
-
2020
- 2020-03-24 CN CN202020389542.3U patent/CN211894159U/en active Active
-
2021
- 2021-02-08 KR KR1020210017261A patent/KR20210119288A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| KR20210119288A (en) | 2021-10-05 |
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