CN217295807U - Novel automatic packing garbage bin - Google Patents
Novel automatic packing garbage bin Download PDFInfo
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- CN217295807U CN217295807U CN202220410976.6U CN202220410976U CN217295807U CN 217295807 U CN217295807 U CN 217295807U CN 202220410976 U CN202220410976 U CN 202220410976U CN 217295807 U CN217295807 U CN 217295807U
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- heat
- electromagnetic coil
- heat sealing
- cutting
- garbage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/10—Waste collection, transportation, transfer or storage, e.g. segregated refuse collecting, electric or hybrid propulsion
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Abstract
The utility model relates to the field of household appliances, in order to improve the efficiency of packaging garbage bags, in particular to a novel automatic packaging garbage can, which comprises a can body for containing garbage bags, and a heat sealing device arranged on the can body and used for carrying out heat sealing on the mouth parts of the garbage bags, wherein the garbage can also comprises a drawing rod for drawing in the mouth parts of the garbage bags, the drawing rod is arranged opposite to the heat sealing device, the garbage bags are garbage bags without break points, and the heat sealing device comprises a shell, an electromagnetic coil arranged in the shell and a heat conducting piece matched with the electromagnetic coil and used for transferring heat; the garbage bin still includes power supply and the control assembly who is connected with it electricity, solenoid with the control assembly electricity is connected, the control assembly is used for turning into the alternating current that frequency more than or equal to 1KHZ with the direct current of power supply output. The packing efficiency and the sealing uniformity are improved.
Description
Technical Field
The utility model relates to a domestic appliance field especially relates to a novel automatic packing garbage bin.
Background
The existing garbage can capable of closing and sealing the opening of a garbage bag is called as an automatic packing garbage can, and the garbage bag is cut off at the sealing position. The adopted sealing and cutting mode is a resistance heating mode, namely, one resistance heating wire or two resistance heating wires act on the garbage bag to seal and cut. However, the method of resistance heating is inefficient and long in heat generation time, and is liable to generate open flames.
Moreover, current automatic packing garbage bin uses no breakpoint disposal bag, cuts off the realization through the heat-seal to the disposal bag oral area and seals current disposal bag oral area to and form the bottom of next disposal bag. The garbage bin has certain probability of holding liquid as domestic waste's container, and the mode through resistance heating is because the problem that produces the thermal efficiency and hang down, and is inhomogeneous to the heating of disposal bag, leads to the bottom of next disposal bag to seal not well, appears the weeping phenomenon. In order to promote sealed efficiency, can improve the resistance of resistance heater and solve, but this kind of mode can lead to the temperature rise of control assembly to show and improve and burn out control assembly, if the voltage that promotes control assembly promotes and solves the problem that control assembly burns out, can lead to showing the improvement of cost again.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the background art, the utility model provides a novel automatic packaging garbage can, which converts electric energy into magnetic energy and then into heat energy by applying the structural design of an electromagnetic coil and a heat conducting piece matched with the electromagnetic coil, and has higher efficiency than resistance heating, thereby realizing higher packaging efficiency of garbage bags; realize the heating more even through the heat conduction piece to it is more even to the heating of disposal bag, makes the bottom of disposal bag sealed better, reduces the weeping probability.
A novel automatic packaging garbage can comprises a can body for containing garbage bags, a heat sealing device arranged on the can body and used for carrying out heat sealing on the opening portions of the garbage bags, and a drawing rod for drawing the opening portions of the garbage bags in, wherein the drawing rod is arranged opposite to the heat sealing device, the garbage bags are breakpoint-free garbage bags, and the heat sealing device comprises a shell, an electromagnetic coil arranged in the shell and a heat conducting piece matched with the electromagnetic coil and used for transferring heat; the garbage can further comprises a power supply and a control assembly electrically connected with the power supply, the electromagnetic coil is electrically connected with the control assembly, and the control assembly is used for converting direct current output by the power supply into alternating current with the frequency larger than or equal to 1 KHZ.
Preferably, the heat conducting member comprises a heat sealing portion for sealing an opening of the garbage bag by heating and a cutting portion for cutting the garbage bag, the heat sealing portion is located above the cutting portion, and the temperature of the heat sealing portion is lower than that of the cutting portion.
Preferably, the distance between the heat-sealed portion and the electromagnetic coil is larger than the distance between the cut portion and the electromagnetic coil.
Preferably, the electromagnetic coil includes a first electromagnetic coil for heating the heat-sealed portion and a second electromagnetic coil for heating the cut portion, and a heating power of the first electromagnetic coil is smaller than a heating power of the second electromagnetic coil.
Preferably, the electromagnetic coil includes a third electromagnetic coil and a fourth electromagnetic coil, the heat of the heat-sealed portion is supplied by the third electromagnetic coil, and the heat of the cut-off portion is supplied by the third electromagnetic coil and the fourth electromagnetic coil.
Preferably, the heat conducting member comprises a heat sealing portion for sealing the opening of the garbage bag by heating and a cutting portion for cutting the garbage bag, the heat sealing portion is located above the cutting portion, the heat sealing portion and the cutting portion have different structures, and the contact area of the heat sealing portion and the garbage bag is larger than the contact area of the cutting portion and the garbage bag.
Preferably, the cutting portion is provided integrally with the heat-seal portion, and the cutting portion is provided so as to protrude from the heat-seal portion.
Preferably, the cutting portion and the heat-seal portion are separately provided, the heat-conducting member includes a first heat-conducting member and a second heat-conducting member located below the first heat-conducting member, and a portion of the first heat-conducting member vertically extending toward the second heat-conducting member forms the heat-seal portion.
Preferably, the heat conducting member is connected with the shell, and the folding rod is provided with a first elastic member matched with the heat sealing device;
or the heat conducting piece is arranged on the furling rod, the heat sealing device further comprises a second elastic piece covered on the shell, the second elastic piece is matched with the heat conducting piece, and the shell is a metal piece;
or the heat conducting piece is arranged on the folding rod, the heat sealing device further comprises a second elastic piece covered on the shell, and the second elastic piece is matched with the heat conducting piece;
or the heat conducting piece comprises a heat sealing part for heating and sealing the opening of the garbage bag and a cutting part for cutting off the garbage bag, one of the cutting part and the heat sealing part is connected with the shell, and the other is arranged on the furling rod.
Preferably, the garbage can further comprises a heat dissipation unit for dissipating heat of the control assembly, and the distance from the heat dissipation unit to the control assembly is smaller than the distance from the electromagnetic coil to the control assembly.
The utility model has the advantages that:
1. the electric energy is converted into magnetic energy by applying the heating mode of the electromagnetic coil, and then the magnetic energy is converted into heat energy, so that the efficiency of heating is higher than that of resistance heating, and the garbage bag can be packed more efficiently; the arrangement of the heat conducting piece matched with the electromagnetic coil improves the heating uniformity, so that the garbage bag is heated more uniformly, the bottom of the garbage bag is sealed better, and the liquid leakage probability is reduced; the control assembly is not easy to burn out, and the working reliability of the product is improved; the direct current is converted into the alternating current with the frequency more than or equal to 1KHZ by the control assembly, so that the heat conducting piece can form enough heat for packaging the garbage bag, and the packaging efficiency and reliability are ensured; if the temperature is lower than 1KHZ, the heat generation efficiency is reduced. Overall, the technical scheme of the utility model overcome among the prior art resistance heating mode heating efficiency not high, to the inhomogeneous drawback that the weeping phenomenon appears in the heating of disposal bag, through the concrete structural design of heat conduction piece and with solenoid heating mode's cooperation, improve packing efficiency and seal the homogeneity.
2. Through the setting of heat-seal portion and cutting off portion, and set up different temperatures to heat-seal portion and cutting off portion, realize the function that the sealing of heat-seal portion is but not cut off and the melting of cutting off portion cuts off through the difference of temperature, carry out double sealing to the bottom of disposal bag, reduce the weeping probability.
3. The distance between the heat-sealing part and the electromagnetic coil is larger than the distance between the cutting part and the electromagnetic coil, so that the temperature of the heat-sealing part is lower than that of the cutting part, thereby the heat-sealing part heats the garbage bag but does not cut the garbage bag, and the cutting part cuts the garbage bag and simultaneously cuts and seals the opening part of the garbage bag. In the technical scheme, the heat sealing device can be realized by applying one electromagnetic coil, so that the cost is reduced, and the volume of the heat sealing device is reduced.
4. The heat-sealing part and the cutting part are respectively corresponding to the electromagnetic coils with different heating powers, so that different heating powers can be obtained for the heat-sealing part and the cutting part, the temperature of the heat-sealing part is lower than that of the cutting part, different functions of the heat-sealing part and the cutting part are ensured to be realized, and the working reliability is improved;
5. the heat of the heat sealing part is provided by the third electromagnetic coil, and the heat of the cutting part is provided by the third electromagnetic coil and the fourth electromagnetic coil, so that the temperature of the heat sealing part is lower than that of the cutting part, the working reliability is improved, the power of the third electromagnetic coil and the power of the fourth electromagnetic coil are not limited, the component type selection is convenient, the component type selection is not limited, the cost is reduced, and the degree of freedom of structural design is improved.
6. Through the setting of the heat-seal portion of different structures and cutting off portion to and through making the area that heat-seal portion and disposal bag contacted be greater than the area that cutting off portion and disposal bag contacted realize the heat-seal function of heat-seal portion and the cutting off function of cutting off portion, and can promote the compactness of department of sealing, reduce the probability of disposal bag bottom weeping.
7. The cutting part and the heat sealing part are integrally arranged, so that the installation is convenient, and the assembly efficiency is improved; the assembly precision is improved; the cutting part is arranged to protrude out of the heat sealing part, so that the cutting part contacts the opening part of the garbage bag before the heat sealing part, and the contact time of the cutting part and the opening part of the garbage bag is longer than that of the heat sealing part and the opening part of the garbage bag, thereby being beneficial to effectively realizing the functions of the cutting part and the heat sealing part.
8. The cutting part and the heat-sealing part are separately arranged, so that the arrangement limit of the heat-sealing part and the cutting part is reduced, and the heat quantity of the cutting part and the heat-sealing part can be more reliably controlled; in addition, the part of the first heat-conducting member vertically extending to the second heat-conducting member forms a heat-sealing part, so that the surface area of the heat-sealing part is larger than that of the cutting part, and the structure is simple.
9. By connecting the heat conducting piece with the shell, the heat exchange between the heat conducting piece and the electromagnetic coil can be realized directly, the heat loss is reduced, and the packaging efficiency is improved; through the setting of first elastic component, can obtain certain compressive capacity, realize drawing in the pole and can interference fit with sealing device, make sealing device carry out abundant hot melt to the oral area of disposal bag.
The heat conducting piece is arranged on the furling rod, so that the assembling gap on the surface of the shell is reduced, and the heat conducting piece has good waterproof performance; through the setting of second elastic component, can obtain certain compression capacity, realize drawing in the pole and can interference fit with sealing device, make sealing device carry out abundant hot melt to the oral area of disposal bag.
The shell is made of metal pieces, so that heat conduction is accelerated; both sides all have the heat, promote packing efficiency and sealing reliability.
10. The heat generated by the control assembly is dissipated through the arrangement of the heat dissipation unit, so that the reliable work of the control assembly is ensured; the distance between the heat dissipation unit and the control assembly is smaller than that between the electromagnetic coil and the control assembly, so that the space of the garbage can be fully utilized, and reasonable structural arrangement is realized.
Drawings
Fig. 1 is a schematic structural view of the trash can of the present invention.
Fig. 2 is a schematic structural view of the garbage bag packaging process of the present invention.
Fig. 3 is a schematic structural view of the heat sealing device of the present invention.
Fig. 4 is a first schematic view showing a positional relationship between the heat-seal portion and the cutting portion according to embodiment 1 of the present invention.
Fig. 5 is a first schematic view of a matching structure of the heat conducting member and the electromagnetic coil according to embodiment 1 of the present invention.
Fig. 6 is a schematic view of a matching structure between the heat conducting member and the electromagnetic coil according to embodiment 1 of the present invention.
Fig. 7 is a first schematic view of a matching structure of the heat conducting member and the elastic member according to embodiment 1 of the present invention.
Fig. 8 is a schematic view of a matching structure of the heat conducting member and the elastic member according to embodiment 1 of the present invention.
Fig. 9 is a schematic view showing a positional relationship between the heat-seal portion and the cutting portion according to embodiment 1 of the present invention.
Fig. 10 is a third schematic view showing a positional relationship between the heat-seal portion and the cutting portion according to embodiment 1 of the present invention.
Fig. 11 is a first schematic structural view of a heat conducting member according to embodiment 2 of the present invention.
Fig. 12 is a second schematic structural view of the heat conducting member according to embodiment 2 of the present invention.
Fig. 13 is a third schematic structural view of the heat conducting member according to embodiment 2 of the present invention.
Fig. 14 is a fourth schematic structural view of the heat conducting member according to embodiment 2 of the present invention.
The names of the components of the various reference numbers shown in the figures are as follows:
1. a barrel body; 101. a base plate; 2. a furling rod; 3. a heat sealing device; 301. a housing; 302. an electromagnetic coil; 3021. a first electromagnetic coil; 3022. a second electromagnetic coil; 3023. a third electromagnetic coil; 3024. a fourth electromagnetic coil; 303. a heat conductive member; 3031. a heat-seal part; 3032. a cutting part; 4. a first heat-conducting member; 5. a second heat-conducting member; 6. a first elastic member; 7. a second elastic member; 8. a garbage bag.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
As shown in fig. 1 to 3, a novel automatic packaging garbage can includes a can body 1 for accommodating a garbage bag 8, a heat sealing device 3 disposed on the can body 1 for heat sealing an opening of the garbage bag 8, and a folding rod 2 for folding the opening of the garbage bag 8, wherein the folding rod 2 is disposed opposite to the heat sealing device 3, and the garbage bag 8 is a garbage bag 8 without a break point, and the heat sealing device 3 includes a housing 301, an electromagnetic coil 302 disposed in the housing 301, and a heat conducting element 303 matched with the electromagnetic coil 302 for transferring heat; the garbage bin still includes power supply and the control assembly who is connected with it electricity, solenoid 302 with the control assembly electricity is connected, the control assembly is used for turning into the alternating current that frequency more than or equal to 1KHZ with the direct current of power supply output.
The electromagnetic coil 302 is preferably enameled wire. Meanwhile, under the limited space layout, the winding wires which are as many as possible can generate stronger magnetic fields, so that the heat efficiency is higher.
The heat conductive member 303 is preferably a magnetically susceptible metal or alloy. The electromagnetic heating efficiency of the easily magnetized metal or alloy will be higher. The non-metallic parts generally do not have electromagnetic induction heating phenomenon. The heat conductive member 303 is preferably an iron, cobalt, nickel alloy.
The frequency of the alternating current is controlled by the control assembly depending on the material, thickness, distance from the electromagnetic coil 302, etc. of the heat conductive member 303.
The garbage can comprises a bottom plate 101, the bottom plate 101 is connected with the can body 1, the heat sealing device 3 and the folding rod 2 are arranged on the bottom plate 101, the heat sealing device 3 and the folding rod 2 are respectively arranged on two opposite sides of the bottom plate 101, and the folding rod 2 moves to the heat sealing device 3 in the driving unit, so that the opening of the garbage bag 8 can be folded.
Example 1:
in order to improve the reliability of sealing the bottom of the garbage bag 8 and reduce the probability of liquid leakage, as shown in fig. 4-10, the heat conducting member 303 comprises a heat sealing part 3031 for heat sealing the mouth part of the garbage bag 8 and a cutting part 3032 for cutting the garbage bag 8, the heat sealing part 3031 is positioned above the cutting part 3032, and the temperature of the heat sealing part 3031 is lower than that of the cutting part 3032.
In order to realize that the temperature of the heat-seal part 3031 is lower than that of the cutting part 3032, one way is that the distance between the heat-seal part 3031 and the electromagnetic coil 302 is larger than that between the cutting part 3032 and the electromagnetic coil 302. Alternatively, as shown in fig. 5, the electromagnetic coil 302 includes a first electromagnetic coil 3021 for heating the heat sealing portion 3031 and a second electromagnetic coil 3022 for heating the cutting portion 3032, and the heating power of the first electromagnetic coil 3021 is smaller than that of the second electromagnetic coil 3022. In still another mode, as shown in fig. 6, the electromagnetic coil 302 includes a third electromagnetic coil 3023 and a fourth electromagnetic coil 3024, the heat of the heat sealing portion 3031 is supplied from the third electromagnetic coil 3023, and the heat of the cutting portion 3032 is supplied from the third electromagnetic coil 3023 and the fourth electromagnetic coil 3024.
Further, as shown in fig. 4, 9, and 10, one of the cut portion 3032 and the heat-seal portion 3031 is connected to the housing 301, and the other is provided to the closing rod 2.
In order to make the disposal bag 8 fully compress the disposal bag 8 to be sealed when packaging, reduce the gap of gathering the place, thereby being that the disposal bag 8 is fully heat-sealed, can adopt following mode:
mode 1: as shown in fig. 7, the heat conducting member 303 is connected to the housing 301, and the folding rod 2 is provided with a first elastic member 6 engaged with the heat sealing device 3;
mode 2: as shown in fig. 8, the heat conducting member 303 is disposed on the folding rod 2, the heat sealing device 3 further includes a second elastic member 7 covering the housing 301, the second elastic member 7 is engaged with the heat conducting member 303, and the housing 301 is a metal member;
mode 3: as shown in fig. 8, the heat conducting member 303 is disposed on the folding rod 2, the heat sealing device 3 further includes a second elastic member 7 covering the housing 301, and the second elastic member 7 is engaged with the heat conducting member 303;
further, the garbage can further comprises a heat dissipation unit for dissipating heat of the control assembly, and the distance from the heat dissipation unit to the control assembly is smaller than the distance from the electromagnetic coil 302 to the control assembly. The heat dissipation unit is generally a fin-shaped aluminum sheet; copper sheets can also be adopted; the heat dissipation device can also adopt a form of adding an aluminum sheet to the copper sheet, wherein the copper sheet is connected with the aluminum sheet, and the heat is conducted into the aluminum sheet through the copper sheet to dissipate the heat.
Further, in order to ensure a good packing effect, it is necessary to ensure the heating efficiency, and the heat conducting member 303 is disposed perpendicular to the magnetic field direction of the electromagnetic coil 302 to ensure the maximum area for cutting the magnetic induction lines, which can ensure the maximum heating efficiency.
Example 2:
the present embodiment is different from embodiment 1 in that, as shown in fig. 6, 11 to 14, the heat-seal portion 3031 and the cut portion 3032 have different configurations, and the area of the heat-seal portion 3031 in contact with the garbage bag 8 is larger than the area of the cut portion 3032 in contact with the garbage bag 8. This embodiment can realize sealing and cutting functions even when the temperatures of the heat-seal portion 3031 and the cutting portion 3032 are different.
Specifically, as shown in fig. 6, the cutting portion 3032 is provided integrally with the heat-seal portion 3031, and the cutting portion 3032 is provided so as to protrude from the heat-seal portion 3031. The cross section of the heat conducting member 303 is L-shaped.
It is understood that, as shown in fig. 14, the cut portion 3032 is provided separately from the heat seal portion 3031, the heat conduction member 303 includes a first heat conduction member 4 and a second heat conduction member 5 located below the first heat conduction member 4, and a portion of the first heat conduction member 4 extending vertically toward the second heat conduction member 5 forms the heat seal portion 3031.
By changing the size or material of the cut portion 3032 and the heat seal portion 3031, different functions can be realized by different amounts of heat conducted per unit time.
The above-described embodiments are merely preferred embodiments of the present invention, not all embodiments of the present invention, and various modifications may be made by those skilled in the art according to the principle of the present invention without departing from the spirit of the present invention, which is defined by the scope of the appended claims.
Claims (10)
1. A novel automatic packaging garbage can comprises a can body for containing garbage bags, a heat sealing device arranged on the can body and used for carrying out heat sealing on the opening portions of the garbage bags, and a drawing rod for drawing the opening portions of the garbage bags in, wherein the drawing rod is arranged opposite to the heat sealing device, and the garbage bags are breakpoint-free garbage bags; the garbage bin still includes power supply and the control assembly who is connected with it electricity, solenoid with the control assembly electricity is connected, the control assembly is used for turning into the alternating current that frequency more than or equal to 1KHZ with the direct current of power supply output.
2. The trash can of claim 1, wherein the heat conducting member comprises a heat sealing portion for heat sealing the opening of the trash bag and a cutting portion for cutting the trash bag, the heat sealing portion is located above the cutting portion, and the temperature of the heat sealing portion is lower than the temperature of the cutting portion.
3. A trash can according to claim 2, wherein the heat-sealed portion is located at a distance from the electromagnetic coil that is greater than a distance from the cut-off portion to the electromagnetic coil.
4. A trash can according to claim 2, wherein the electromagnetic coil includes a first electromagnetic coil for heating the heat-sealed portion and a second electromagnetic coil for heating the cut-off portion, and a heating power of the first electromagnetic coil is smaller than a heating power of the second electromagnetic coil.
5. A trash can as claimed in claim 2, wherein the electromagnetic coils include a third electromagnetic coil and a fourth electromagnetic coil, and wherein heat for the heat-sealed portion is provided by the third electromagnetic coil and heat for the cut-off portion is provided by the third electromagnetic coil and the fourth electromagnetic coil.
6. The trash can of claim 1, wherein the heat conducting member comprises a heat sealing portion for heat sealing a mouth portion of the trash bag and a cutting portion for cutting the trash bag, the heat sealing portion is located above the cutting portion, the heat sealing portion and the cutting portion are different in configuration, and an area of the heat sealing portion contacting the trash bag is larger than an area of the cutting portion contacting the trash bag.
7. A waste bin according to claim 6, wherein the cut-off portion is provided integrally with the heat-seal portion and the cut-off portion is provided protruding from the heat-seal portion.
8. The trash can of claim 6, wherein the cut-off portion is provided separately from the heat-seal portion, and the heat-conducting member includes a first heat-conducting member and a second heat-conducting member located below the first heat-conducting member, and a portion of the first heat-conducting member extending vertically toward the second heat-conducting member forms the heat-seal portion.
9. A waste bin according to any one of claims 1 to 8 wherein the heat conducting member is connected to the housing, and the folding bar is provided with a first resilient member which cooperates with the heat sealing device;
or, the heat conducting member is arranged on the furling rod, the heat sealing device further comprises a second elastic member covered on the shell, the second elastic member is matched with the heat conducting member, and the shell is a metal member;
or the heat conducting piece is arranged on the folding rod, the heat sealing device further comprises a second elastic piece covered on the shell, and the second elastic piece is matched with the heat conducting piece;
or the heat conducting piece comprises a heat sealing part for heating and sealing the opening of the garbage bag and a cutting part for cutting off the garbage bag, one of the cutting part and the heat sealing part is connected with the shell, and the other is arranged on the furling rod.
10. A waste bin according to any one of claims 1 to 8, further comprising a heat dissipating unit for dissipating heat from the control assembly, the heat dissipating unit being located at a distance from the control assembly that is less than the distance of the electromagnetic coil from the control assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220410976.6U CN217295807U (en) | 2022-02-28 | 2022-02-28 | Novel automatic packing garbage bin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220410976.6U CN217295807U (en) | 2022-02-28 | 2022-02-28 | Novel automatic packing garbage bin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217295807U true CN217295807U (en) | 2022-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220410976.6U Active CN217295807U (en) | 2022-02-28 | 2022-02-28 | Novel automatic packing garbage bin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217295807U (en) |
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2022
- 2022-02-28 CN CN202220410976.6U patent/CN217295807U/en active Active
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