CN220931472U - Deep low-temperature refrigeration bin suitable for cold storage in advance of cold storage strips - Google Patents
Deep low-temperature refrigeration bin suitable for cold storage in advance of cold storage strips Download PDFInfo
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- CN220931472U CN220931472U CN202322362262.XU CN202322362262U CN220931472U CN 220931472 U CN220931472 U CN 220931472U CN 202322362262 U CN202322362262 U CN 202322362262U CN 220931472 U CN220931472 U CN 220931472U
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 25
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 22
- 239000010935 stainless steel Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 23
- 239000003507 refrigerant Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 9
- 230000006978 adaptation Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 description 5
- 238000007726 management method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Abstract
The utility model discloses a deep low-temperature refrigeration bin suitable for cold storage strips to store cold in advance, belongs to the technical field of cold chain logistics, and aims to provide the deep low-temperature refrigeration bin suitable for the cold storage strips to store cold in advance, and solve the problems of low cold storage efficiency and inconvenient management of the cold storage strips caused by the lack of special refrigeration equipment of the conventional cold storage strips. The cold storage bin comprises a cold storage bin fixing underframe, a cold storage bin main body is arranged on the cold storage bin fixing underframe, a plurality of layers of stainless steel frames are arranged in the cold storage bin main body along the height direction of the cold storage bin main body, a refrigerator outer machine is arranged beside the cold storage bin main body on the cold storage bin fixing underframe, a refrigerator inner machine is further arranged at the inner top of the cold storage bin main body, and a plurality of cold strip components are arranged on the stainless steel frames. The utility model is suitable for a deep low-temperature refrigerating bin which is suitable for the advanced cold storage of the cold storage strip.
Description
Technical Field
The utility model belongs to the technical field of cold chain logistics, and particularly relates to a deep low-temperature refrigeration bin suitable for advanced cold storage of a cold storage strip.
Background
In China, the terminal urban distribution business of cold chain logistics is evolved for about 20 years, but compared with logistics markets such as express, special lines, parts and vehicles, the urban distribution field, particularly cold chain urban distribution, has relatively slow overall development, and the industry enters a bottleneck period of logistics cost. Urban distribution sources are not concentrated in a certain area, but are irregularly distributed in cities.
At present, cold chain urban distribution is carried by adopting a cold chain transport vehicle, the cargo hold of the transport vehicle is a refrigerating cabin, cargoes of different ordering parties are concentrated and unordered in the cargo hold, a great amount of time is required to be consumed for each time of clearing, ordering and unloading after the vehicle arrives at a delivery site, the efficiency is low, and meanwhile, when the vehicle is at high temperature, the cargo hold is opened for too long, so that the unreachable objects are broken by the cold chain, and the cargo is damaged. Therefore, some enterprises adopt cold chain boxes to load cargoes, and load cargoes in adjacent places in the corresponding cold chain boxes as much as possible, so that the time for clearing cargoes, ordering cargoes and unloading cargoes is reduced, and other undelivered cargoes are still stored in other corresponding cold chain boxes at low temperature, so that the cargo loss is reduced. However, the traditional cold chain box has the defects that the traditional cold chain box is required to be externally connected with a refrigerating system for refrigeration, so that the energy of a transport vehicle is additionally consumed, the delivery range of the transport vehicle is reduced, and meanwhile, the traditional cold chain box is not movable and has poor interactivity, so that the requirements of distribution enterprises cannot be completely met. Therefore, the movable cold chain box based on cold storage bar refrigeration has good interactivity and mobility, and can perfectly solve the faced difficulties of distribution enterprises. However, based on the distribution mode of the movable cold chain box, the quantity of cold storage strips used by distribution enterprises is large, and the cold storage strips need to be frequently stored and circulated. At present, no special targeted refrigeration equipment exists in the market, the conventional mode has lower efficiency when cold storage strips are stored, the cold storage strips are not convenient to manage by distribution enterprises, and the requirements of the distribution enterprises are difficult to meet.
Disclosure of utility model
The utility model aims at: the deep low-temperature refrigeration bin is suitable for the cold storage strips to store cold in advance, and solves the problems of low cold storage efficiency and inconvenient management of the cold storage strips caused by the lack of special refrigeration equipment in the existing cold storage strips.
The technical scheme adopted by the utility model is as follows:
The utility model provides an adaptation is in cold-storage strip and stores up cold cryogenic refrigeration storehouse in advance, includes the fixed chassis of cold-storage storehouse, be provided with cold-storage storehouse main part on the fixed chassis of cold-storage storehouse, be provided with a plurality of layers of stainless steel frame along cold-storage storehouse main part direction of height in the cold-storage storehouse main part, be located the cold-storage storehouse main part on the fixed chassis of cold-storage storehouse and be provided with the refrigerator outer machine, cold-storage storehouse main part top still is provided with the refrigerator inner machine, be provided with a plurality of cold strip subassemblies on the stainless steel frame.
Further, the cold accumulation bin main body is provided with a sealing door, and a locking mechanism is arranged on the sealing door.
Further, the refrigerator outer machine comprises a compressor, a condenser and a fan, the refrigerator inner machine comprises an evaporator, an expansion valve and a wind wheel, and the compressor, the condenser, the expansion valve and the evaporator are communicated through refrigerant pipelines.
Further, cold strip subassembly includes cold strip main part, and cold strip main part front end is provided with the front end shrouding, cold strip main part tail end is provided with the tail end shrouding, cold strip main part, front end shrouding, tail end shrouding enclose to be formed with the cavity that is used for loading liquid refrigerant, be provided with the filling hole in the cold strip main part, install the end cap on the filling hole, be provided with the fin in the cold strip main part the fin includes a plurality of side fins, top fin, interior fin, the side fin sets up perpendicularly in the outside of cold strip main part both sides lateral wall, the top fin sets up perpendicularly in the inboard and the outside of cold strip main part roof, interior fin sets up perpendicularly in the inboard of cold strip main part diapire.
Further, the outside of cold strip main part both sides lateral wall still is connected with and bears the fin, it is located the side fin below to bear the fin, it is greater than the thickness of side fin to bear the thickness of fin, stainless steel frame includes rectangular frame main part, be provided with a plurality of carrier beams in the rectangular frame main part, cold strip subassembly hangs through bearing the fin and locates on the carrier beam.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. The cold storage bin comprises a cold storage bin fixing underframe, wherein a cold storage bin main body is arranged on the cold storage bin fixing underframe, a plurality of layers of stainless steel frames are arranged in the cold storage bin main body along the height direction of the cold storage bin main body, a refrigerator outer machine is arranged on the cold storage bin fixing underframe and beside the cold storage bin main body, a refrigerator inner machine is further arranged at the top of the cold storage bin main body, and a plurality of cold strip assemblies are arranged on the stainless steel frames.
Through this setting, after a plurality of cold strip subassemblies concentrate on the stainless steel frame and load, through the cooperation of the outer machine of refrigerator and the interior machine of refrigerator, realize the batch refrigeration to cold strip subassembly, after the refrigeration finishes, can push away cold chain case to cold-storage storehouse department, swift realization is to cold chain case cold strip subassembly's additional dress or change, has effectively solved current cold-storage strip and has lacked special refrigeration plant, causes cold-storage strip to store up cold inefficiency, the inconvenient problem of management.
2. The cold strip assembly comprises a cold strip main body, a front end sealing plate is arranged at the front end of the cold strip main body, a tail end sealing plate is arranged at the tail end of the cold strip main body, a cavity for loading liquid refrigerants is formed by enclosing the cold strip main body, the front end sealing plate and the tail end sealing plate, a filling hole is formed in the cold strip main body, a plug is arranged on the filling hole, fins are arranged on the cold strip main body and comprise a plurality of side fins, top fins and inner fins, the side fins are vertically arranged on the outer sides of side walls of two sides of the cold strip main body, the top fins are vertically arranged on the inner side and the outer side of the top wall of the cold strip main body, and the inner fins are vertically arranged on the inner side of the bottom wall of the cold strip main body. Through this setting, side fin, top fin, interior fin can greatly increased cold strip subassembly's heat exchange area, promotes heat exchange efficiency, makes liquid refrigerant rapid cooling, makes cold strip subassembly can be faster reach the service condition.
3. In the utility model, the outer sides of the side walls at two sides of the cold bar main body are also connected with the bearing fins, the bearing fins are positioned below the side fins, the thickness of the bearing fins is larger than that of the side fins, the stainless steel frame comprises a rectangular frame main body, a plurality of bearing beams are arranged on the rectangular frame main body, and the cold bar assembly is hung on the bearing beams through the bearing fins. Through this setting, bear the weight of the fin and have higher intensity, can realize promoting cold strip subassembly heat exchange efficiency's purpose, can make cold strip subassembly load more convenient, more stable again.
Drawings
For a clearer description of the technical solutions of embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and should not be considered limiting in scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an external schematic view of the present utility model;
FIG. 3 is a schematic view of a cold bar assembly according to the present utility model;
FIG. 4 is a schematic cross-sectional view of a cold bar assembly of the present utility model;
FIG. 5 is a partial schematic view of the interior of the cold accumulation chamber body of the present utility model;
The marks in the figure: the cold storage bin comprises a 1-cold storage bin body, a 2-cold strip assembly, a 21-cold strip body, a 22-plug, a 23-pouring hole, a 24-front end sealing plate, a 25-tail end sealing plate, a 26-handle, a 27-side fin, a 28-top fin, a 29-inner fin, a 210-bearing fin, a 211-cavity, a 3-cold storage bin fixing underframe, a 4-refrigerator inner machine, a 5-stainless steel frame, a 51-rectangular frame body, a 52-bearing beam, a 6-refrigerator outer machine, a 7-sealing door and an 8-locking mechanism.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: reference numerals and letters denote similar items throughout the following figures, and thus once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of description of the present utility model, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the mechanical connection can be made or the electrical connection can be made; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two original parts. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The utility model provides an adaptation is in cold-storage strip and stores up cold cryogenic refrigeration storehouse in advance, includes the fixed chassis of cold-storage storehouse, be provided with cold-storage storehouse main part on the fixed chassis of cold-storage storehouse, be provided with a plurality of layers of stainless steel frame along cold-storage storehouse main part direction of height in the cold-storage storehouse main part, be located the cold-storage storehouse main part on the fixed chassis of cold-storage storehouse and be provided with the refrigerator outer machine, cold-storage storehouse main part top still is provided with the refrigerator inner machine, be provided with a plurality of cold strip subassemblies on the stainless steel frame.
Further, the cold accumulation bin main body is provided with a sealing door, and a locking mechanism is arranged on the sealing door.
Further, the refrigerator outer machine comprises a compressor, a condenser and a fan, the refrigerator inner machine comprises an evaporator, an expansion valve and a wind wheel, and the compressor, the condenser, the expansion valve and the evaporator are communicated through refrigerant pipelines.
Further, cold strip subassembly includes cold strip main part, and cold strip main part front end is provided with the front end shrouding, cold strip main part tail end is provided with the tail end shrouding, cold strip main part, front end shrouding, tail end shrouding enclose to be formed with the cavity that is used for loading liquid refrigerant, be provided with the filling hole in the cold strip main part, install the end cap on the filling hole, be provided with the fin in the cold strip main part the fin includes a plurality of side fins, top fin, interior fin, the side fin sets up perpendicularly in the outside of cold strip main part both sides lateral wall, the top fin sets up perpendicularly in the inboard and the outside of cold strip main part roof, interior fin sets up perpendicularly in the inboard of cold strip main part diapire.
Further, the outside of cold strip main part both sides lateral wall still is connected with and bears the fin, it is located the side fin below to bear the fin, it is greater than the thickness of side fin to bear the thickness of fin, stainless steel frame includes rectangular frame main part, be provided with a plurality of carrier beams in the rectangular frame main part, cold strip subassembly hangs through bearing the fin and locates on the carrier beam.
In the implementation process, after the cold bar components are concentrated on the stainless steel frame and are loaded, the external machine of the refrigerator and the internal machine of the refrigerator are matched in a coordinated manner, so that batch refrigeration of the cold bar components is realized, after the refrigeration is finished, the cold chain box can be pushed to the cold storage bin, the cold bar components of the cold chain box can be quickly added or replaced, and the problems of low cold storage efficiency and inconvenience in management of the cold bar caused by the lack of special refrigeration equipment in the conventional cold bar are effectively solved.
Specifically, the cold accumulation bin main body is provided with a closed door, and a locking mechanism is arranged on the closed door.
Specifically, the refrigerator outer machine comprises a compressor, a condenser and a fan, the refrigerator inner machine comprises an evaporator, an expansion valve and a wind wheel, and the compressor, the condenser, the expansion valve and the evaporator are communicated through refrigerant pipelines.
As preferred implementation mode, cold strip subassembly includes cold strip main part, and cold strip main part front end is provided with the front end shrouding, cold strip main part tail end is provided with the tail end shrouding, cold strip main part, front end shrouding, tail end shrouding enclose and are formed with the cavity that is used for loading liquid refrigerant, be provided with the filling hole in the cold strip main part, install the end cap on the filling hole, be provided with the fin in the cold strip main part the fin includes a plurality of side fins, top fin, interior fin, the side fin sets up perpendicularly in the outside of cold strip main part both sides lateral wall, top fin sets up perpendicularly in the inboard and the outside of cold strip main part roof, interior fin sets up perpendicularly in the inboard of cold strip main part diapire. Through this setting, side fin, top fin, interior fin can greatly increased cold strip subassembly's heat exchange area, promotes heat exchange efficiency, makes liquid refrigerant rapid cooling, makes cold strip subassembly can be faster reach the service condition.
As the preferred implementation mode, the outside of cold strip main part both sides lateral wall still is connected with and bears the fin, bear the fin and be located the side fin below, bear the thickness of fin and be greater than the thickness of side fin, stainless steel frame includes rectangular frame main part, be provided with a plurality of carrier bars on the rectangular frame main part, cold strip subassembly hangs through bearing the fin and locates on the carrier bar. Through this setting, bear the weight of the fin and have higher intensity, can realize promoting cold strip subassembly heat exchange efficiency's purpose, can make cold strip subassembly load more convenient, more stable again.
Example 1
The utility model provides an adaptation is in cold-storage strip and stores up cold cryogenic refrigeration storehouse in advance, includes the fixed chassis of cold-storage storehouse, be provided with cold-storage storehouse main part on the fixed chassis of cold-storage storehouse, be provided with a plurality of layers of stainless steel frame along cold-storage storehouse main part direction of height in the cold-storage storehouse main part, be located the cold-storage storehouse main part on the fixed chassis of cold-storage storehouse and be provided with the refrigerator outer machine, cold-storage storehouse main part top still is provided with the refrigerator inner machine, be provided with a plurality of cold strip subassemblies on the stainless steel frame. Through this setting, after a plurality of cold strip subassemblies concentrate on the stainless steel frame and load, through the cooperation of the outer machine of refrigerator and the interior machine of refrigerator, realize the batch refrigeration to cold strip subassembly, after the refrigeration finishes, can push away cold chain case to cold-storage storehouse department, swift realization is to cold chain case cold strip subassembly's additional dress or change, has effectively solved current cold-storage strip and has lacked special refrigeration plant, causes cold-storage strip to store up cold inefficiency, the inconvenient problem of management.
Example 2
On the basis of embodiment 1, the cold accumulation bin main body is provided with a sealing door, and a locking mechanism is arranged on the sealing door.
Example 3
On the basis of the embodiment, the refrigerator outer machine comprises a compressor, a condenser and a fan, and the refrigerator inner machine comprises an evaporator, an expansion valve and a wind wheel, and the compressor, the condenser, the expansion valve and the evaporator are communicated through refrigerant pipelines.
Example 4
On the basis of the embodiment, the cold strip assembly comprises a cold strip main body, the front end of the cold strip main body is provided with a front end sealing plate, the tail end of the cold strip main body is provided with a tail end sealing plate, a cavity for loading liquid refrigerants is formed by enclosing the cold strip main body, the front end sealing plate and the tail end sealing plate, a filling hole is formed in the cold strip main body, a plug is arranged on the filling hole, a fin is arranged in the cold strip main body and comprises a plurality of side fins, top fins and inner fins, the side fins are vertically arranged on the outer sides of side walls of two sides of the cold strip main body, the top fins are vertically arranged on the inner sides and the outer sides of the top wall of the cold strip main body, and the inner fins are vertically arranged on the inner sides of the bottom wall of the cold strip main body. Through this setting, side fin, top fin, interior fin can greatly increased cold strip subassembly's heat exchange area, promotes heat exchange efficiency, makes liquid refrigerant rapid cooling, makes cold strip subassembly can be faster reach the service condition.
Example 5
On the basis of the embodiment, the outer sides of the side walls of the two sides of the cold bar main body are further connected with bearing fins, the bearing fins are located below the side fins, the thickness of the bearing fins is larger than that of the side fins, the stainless steel frame comprises a rectangular frame main body, a plurality of bearing beams are arranged on the rectangular frame main body, and the cold bar assembly is hung on the bearing beams through the bearing fins. Through this setting, bear the weight of the fin and have higher intensity, can realize promoting cold strip subassembly heat exchange efficiency's purpose, can make cold strip subassembly load more convenient, more stable again.
The above-described embodiments of the present utility model. The foregoing description is illustrative of various preferred embodiments of the present utility model, and the preferred embodiments of the various preferred embodiments may be used in any combination and stacked on the premise of a certain preferred embodiment, where the embodiments and specific parameters in the embodiments are only for clearly describing the verification process of the present utility model, and are not intended to limit the scope of the present utility model, and the scope of the present utility model is still subject to the claims, and all equivalent structural changes made by applying the descriptions and the drawings of the present utility model are included in the scope of the present utility model.
Claims (5)
1. The utility model provides an adaptation is in cold-storage strip and stores up cold deep low temperature refrigeration storehouse in advance, a serial communication port, including cold-storage bin fixed chassis (3), be provided with cold-storage bin main part (1) on cold-storage bin fixed chassis (3), be provided with a plurality of layers of stainless steel frame (5) along cold-storage bin main part (1) direction of height in cold-storage bin main part (1), be located cold-storage bin main part (1) side and be provided with refrigerator outer machine (6) on cold-storage bin fixed chassis (3), cold-storage bin main part (1) top still is provided with refrigerator inner machine (4), be provided with a plurality of cold strip subassembly (2) on stainless steel frame (5).
2. A cryogenic refrigerator adapted to the advanced cold storage of cold storage strips according to claim 1, characterized in that the cold storage bin body (1) is provided with a sealing door (7), and the sealing door (7) is provided with a locking mechanism (8).
3. A cryogenic refrigerator compartment adapted for advanced cold storage of cold storage strips according to claim 1, characterized in that the refrigerator external machine (6) comprises a compressor, a condenser, a fan, the refrigerator internal machine (4) comprises an evaporator, an expansion valve, a wind wheel, the compressor, the condenser, the expansion valve, the evaporator being in communication via a refrigerant conduit.
4. The cryogenic refrigerator bin which is suitable for cold storage strips and stores cold in advance according to claim 1, characterized in that the cold strip assembly (2) comprises a cold strip main body (21), the front end of the cold strip main body (21) is provided with a front end sealing plate (24), the tail end of the cold strip main body (21) is provided with a tail end sealing plate (25), the cold strip main body (21), the front end sealing plate (24) and the tail end sealing plate (25) are enclosed to form a cavity (211) for loading liquid refrigerants, the cold strip main body (21) is provided with a filling hole (23), the filling hole (23) is provided with a plug (22), the cold strip main body (21) is provided with fins, the fins comprise a plurality of side fins (27), a top fin (28) and an inner fin (29), the side fins (27) are vertically arranged on the outer sides of the side walls of the two sides of the cold strip main body (21), the top fin (28) is vertically arranged on the inner side and the outer side of the top wall of the cold strip main body (21), and the inner fin (29) is vertically arranged on the bottom wall of the cold strip main body (21).
5. The deep low-temperature refrigeration bin suitable for cold storage in advance according to claim 4, wherein the outer sides of the side walls of the two sides of the cold strip main body (21) are further connected with bearing fins (210), the bearing fins (210) are located below the side fins (27), the thickness of the bearing fins (210) is larger than that of the side fins (27), the stainless steel frame (5) comprises a rectangular frame main body (51), a plurality of bearing beams (52) are arranged on the rectangular frame main body (51), and the cold strip assembly (2) is hung on the bearing beams (52) through the bearing fins (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322362262.XU CN220931472U (en) | 2023-08-31 | 2023-08-31 | Deep low-temperature refrigeration bin suitable for cold storage in advance of cold storage strips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322362262.XU CN220931472U (en) | 2023-08-31 | 2023-08-31 | Deep low-temperature refrigeration bin suitable for cold storage in advance of cold storage strips |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220931472U true CN220931472U (en) | 2024-05-10 |
Family
ID=90964544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322362262.XU Active CN220931472U (en) | 2023-08-31 | 2023-08-31 | Deep low-temperature refrigeration bin suitable for cold storage in advance of cold storage strips |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220931472U (en) |
-
2023
- 2023-08-31 CN CN202322362262.XU patent/CN220931472U/en active Active
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