CN220520593U - Vacuum aluminizing heat treatment device for slender pipe fitting - Google Patents
Vacuum aluminizing heat treatment device for slender pipe fitting Download PDFInfo
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- CN220520593U CN220520593U CN202222967426.7U CN202222967426U CN220520593U CN 220520593 U CN220520593 U CN 220520593U CN 202222967426 U CN202222967426 U CN 202222967426U CN 220520593 U CN220520593 U CN 220520593U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 132
- 238000005269 aluminizing Methods 0.000 title claims abstract description 37
- 238000001816 cooling Methods 0.000 claims abstract description 40
- 238000004891 communication Methods 0.000 claims description 2
- 239000010865 sewage Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model provides a vacuum aluminizing heat treatment device for slender pipe fittings, which is used for producing slender workpieces, wherein a furnace shell is arranged on the ground, a heating chamber is arranged in the furnace shell, a central furnace tube is arranged in the center of the heating chamber, the workpieces are placed in the central furnace tube, and aluminizing agent is filled in the workpieces; the heating chamber vacuum unit is arranged on the ground and penetrates through the furnace shell to be connected with the lower part of the heating chamber; the cooling fan is arranged on the ground, an air suction pipe of the cooling fan is connected with the upper part of the furnace shell, and an air outlet pipe of the cooling fan is connected with the lower part of the furnace shell; the furnace top is arranged at the top of the furnace shell and is communicated with the central furnace tube, the furnace tube vacuum unit is connected with the furnace top, and the top of the workpiece extends out from the top of the furnace top and is connected with the workpiece vacuum unit; the heating chamber vacuum unit, the cooling fan, the furnace tube vacuum unit, the workpiece vacuum unit and the heating chamber are all connected with the control cabinet. The utility model reduces the energy loss and the influence of environmental factors and also reduces the deformation of the workpiece in the heat treatment process.
Description
Technical Field
The utility model relates to the field of pipe fitting processing, in particular to a vacuum aluminizing heat treatment device for an elongated pipe fitting.
Background
Heat treatment refers to a metal hot working process in which a material is heated, held and cooled in a solid state to achieve a desired texture and properties. Aluminizing is a chemical heat treatment process in which one or more metal atoms infiltrate into the surface layer of a metal workpiece, and a passivation film is formed on the surface of the workpiece after the aluminum element is infiltrated, so that the high-temperature oxidation resistance and corrosion resistance of the workpiece are improved. The current mature aluminizing technology is that solid powder is embedded for aluminizing, a workpiece and a powdery aluminizing agent are put into a sealed aluminizing box together, and aluminizing is realized through the procedures of heating, heat preservation, diffusion annealing and the like. However, the aluminizing of the slender pipe fitting is difficult, the energy consumption of the method is high, the influence of production environment is large, the temperature difference of different parts of the pipe fitting is large, and the quality of the aluminized pipe fitting is poor. Aiming at the problems, the novel vacuum aluminizing heat treatment device for the slender pipe fitting is designed, and the problem existing in the conventional aluminizing manufacturing process for the slender pipe fitting is very necessary to overcome.
Disclosure of Invention
The utility model provides a vacuum aluminizing heat treatment device for an elongated pipe, which aims to solve the problems of high energy consumption, large production environment influence and poor quality of the produced pipe in the existing aluminizing manufacturing process for the elongated pipe. In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a vacuum aluminizing heat treatment device for slender pipe fittings is used for producing slender workpieces and comprises a furnace shell, a heating chamber vacuum unit, a cooling fan, a furnace top, a furnace tube vacuum unit, a workpiece vacuum unit and a control cabinet; the furnace shell is vertically arranged on the ground, a heating chamber is arranged in the furnace shell, a central furnace tube is arranged in the center of the heating chamber, a workpiece is placed in the central furnace tube, and aluminizing agent is filled in the workpiece; the heating chamber vacuum unit is arranged on the ground and penetrates through the furnace shell to be connected with the lower part of the heating chamber; the cooling fan is arranged on the ground, an air suction pipe of the cooling fan is connected with the upper part of the furnace shell, and an air outlet pipe of the cooling fan is connected with the lower part of the furnace shell; the furnace top is arranged at the top of the furnace shell and is communicated with the central furnace tube, the furnace tube vacuum unit is connected with the furnace top, and the top of the workpiece extends out from the top of the furnace top and is connected with the workpiece vacuum unit; the heating chamber vacuum unit, the cooling fan, the furnace tube vacuum unit, the workpiece vacuum unit and the heating chamber are all connected with the control cabinet, and the power of the heating chamber vacuum unit, the cooling fan, the furnace tube vacuum unit and the workpiece vacuum unit and the temperature of the heating chamber are controlled through the control cabinet, so that the whole vacuum aluminizing heat treatment device is controlled.
Preferably, the furnace shell is of a double-wall structure, a water path system is arranged in the furnace shell clamping wall, the water path system can cool the heating chamber more uniformly and stably, workpieces are prevented from being deformed, and brackets are arranged on two sides of the furnace shell.
Preferably, the furnace shell and the heating chamber are of eight-section structures, a thermocouple interface is arranged on the side wall of the furnace shell, a thermocouple is arranged in the thermocouple interface, the thermocouple extends into the heating chamber through the thermocouple interface, the thermocouple is connected with the control cabinet, and the temperature of the heating chamber is detected through the thermocouple.
Preferably, the heating chamber sequentially comprises a heating chamber shell, a heat shield and a heating wire from outside to inside, and a heating electrode of the heating wire extends out of the furnace shell to be connected with a circuit of the control cabinet.
Preferably, the heating chamber vacuum unit is communicated with the heating chamber through a heating chamber vacuum pipeline and a heating vacuum interface arranged on the furnace shell, a vacuum baffle valve is arranged on the heating chamber vacuum pipeline, the vacuum baffle valve has the function of isolating vacuum, and the heating chamber vacuum unit can be used for switching on or switching off the air flow in the heating chamber vacuum pipeline by arranging the vacuum baffle valve on the heating chamber vacuum pipeline.
Preferably, the air suction pipe of the cooling fan is connected with the heating chamber through a heating chamber air suction interface arranged on the furnace shell.
Preferably, the furnace top is connected with the top of the furnace shell through a flange plate cover, the flange plate cover is connected with the furnace shell and the furnace top through a locking structure, a hanging ring is further arranged on the flange plate cover, and the hanging ring is used for hanging the flange plate cover more conveniently.
Preferably, the furnace tube vacuum unit is connected with the central furnace tube through a furnace tube vacuum pipeline and a furnace tube vacuumizing interface arranged on the side wall of the furnace roof, a furnace tube vacuum baffle valve is arranged on the furnace tube vacuum pipeline, a plurality of vacuum dynamometer interfaces are arranged on the furnace tube vacuumizing interface, and a safety valve interface is further arranged on the side wall of the furnace roof.
Preferably, the furnace tube vacuum unit is connected with a workpiece vacuum interface arranged at the top end of the workpiece through workpiece vacuum pipelines, an electromagnetic valve is arranged between the workpiece vacuum interface and the workpiece, and the electromagnetic valve is arranged to realize the respective control of each workpiece vacuum pipeline.
Preferably, a sewage draining waterproof structure is arranged at the bottom of the furnace shell.
The beneficial effects of the utility model are as follows: the utility model provides a heat treatment device for vacuum aluminizing of slender pipe fittings, which realizes the control of heat treatment environment through a vacuum unit and a cooling fan, reduces the energy loss and the influence of environmental factors, realizes a special heat treatment process, realizes a plurality of special cooling processes through the equipped cooling fan, realizes the strict control of the heating temperature of the slender pipe fittings through a multi-section heating chamber and a plurality of temperature observation points, and reduces the deformation of workpieces in the heat treatment process.
Drawings
FIG. 1 is a schematic diagram of a front view of an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of the middle part of a furnace body of a heat treatment apparatus according to an embodiment of the present utility model;
FIG. 3 is a top cross-sectional view of a furnace body of a heat treatment apparatus according to an embodiment of the present utility model.
In the figure: 1. furnace shell, 2, heating chamber vacuum unit, 3, furnace tube vacuum unit, 4, workpiece vacuum unit, 5, cooling fan, 6, switch board, 7, central furnace tube, 8, workpiece, 9, aspiration channel, 10, outlet channel, 11, furnace roof, 12, support, 13, heating chamber shell, 14, heat shield, 15, heating wire, 16, heating electrode, 17, thermocouple interface, 18, heating vacuum interface, 19, heating chamber vacuum pipeline, 20, vacuum baffle valve, 21, flange plate cover, 22, hanging ring, 23, locking structure, 24, electromagnetic valve, 25, furnace tube vacuumizing interface, 26, vacuum dynamometer interface, 27, safety valve interface, 28, furnace tube vacuum pipeline, 29, furnace tube vacuum baffle valve, 30, heating chamber exhaust interface, 31, workpiece vacuum interface, 32, and workpiece vacuum pipeline.
Detailed Description
The technical scheme of the utility model is further described in detail according to the accompanying drawings in the specification. Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.
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", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or elements being referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model, and terms such as "mounted", "connected" and "connected" should be construed broadly, and may be either fixedly connected, detachably connected or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. 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. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
The heat treatment device for vacuum aluminizing of the slender pipe fitting is used for producing slender workpieces 8 and comprises a furnace shell 1, a heating chamber vacuum unit 2, a cooling fan 5, a furnace top 11, a furnace tube vacuum unit 3, a workpiece vacuum unit 4 and a control cabinet 6 as shown in fig. 1; the furnace shell 1 is vertically arranged on the ground, a heating chamber is arranged in the furnace shell 1, a central furnace tube 7 is arranged in the center of the heating chamber, a workpiece 8 is placed in the central furnace tube 7, and an aluminizing agent is filled in the workpiece 8; the heating chamber vacuum unit 2 is arranged on the ground, penetrates through the furnace shell 1 and is connected with the lower part of the heating chamber, and is used for pumping out air in the heating chamber and providing a vacuum environment for the heating chamber; the cooling fan 5 is arranged on the ground, an air suction pipe 9 of the cooling fan 5 is connected with the upper part of the furnace shell 1, and an air outlet pipe 10 of the cooling fan 5 is connected with the lower part of the furnace shell 1. The cooling fan 5 is used for cooling the heating chamber, and the rotating speed of the cooling fan 5 can be adjusted according to the pressure in the heating chamber, so that the functions of vacuum cooling, static cooling and inflation forced cooling are realized; the furnace roof 11 is arranged at the top of the furnace shell 1 and is communicated with the central furnace tube 7, the furnace tube vacuum unit 3 is connected with the furnace roof 11, the top of the workpiece 8 extends out of the top of the furnace roof 11 and is connected with the workpiece vacuum unit 4, and the furnace tube vacuum unit 3 is used for inflating and exhausting the workpiece; the heating chamber vacuum unit 2, the cooling fan 5, the furnace tube vacuum unit 3, the workpiece vacuum unit 4 and the heating chamber are all connected with the control cabinet 6, and the control of the temperature, cooling and the like of the whole vacuum aluminizing heat treatment device is realized through the control cabinet 6. In addition, the bottom of the furnace shell 1 can be provided with a pollution discharge waterproof structure for timely cleaning impurities in the furnace shell 1, so that the production working condition of the slender pipe fitting is not interfered by other impurities.
The furnace shell 1 is of a double-wall structure, a waterway system is arranged in a double-wall of the furnace shell 1 and used for cooling a heating chamber in the furnace shell 1, supports 12 are arranged on two sides of the furnace shell 1 and used for supporting the furnace shell 1, the furnace shell 1 is vertically fixed on the ground, the furnace shell 1 and the heating chamber are of an eight-section structure, strict control on heating temperature of an elongated pipe fitting is realized by arranging a plurality of heating chambers, deformation of a workpiece in a heat treatment process can be reduced, a thermocouple interface 17 is arranged on the side wall of the furnace shell 1, a thermocouple is arranged in the thermocouple interface 17 and is in contact with the heating chamber and connected with a control cabinet 6, the heating chamber sequentially comprises a heating chamber shell 13, a heat shield 14 and a heating wire 15 from outside to inside, a heating electrode 16 of the heating wire 15 stretches out of the furnace shell 1 and is connected with a circuit of the control cabinet 6, and the temperature in the heating wire 15 is controlled by controlling the temperature of the heating wire 15, so that energy loss and environmental factors are reduced.
The heating chamber vacuum unit 2 is communicated with the heating chamber through a heating chamber vacuum pipeline 19 and a heating vacuum interface 18 arranged on the furnace shell 1, a vacuum baffle valve 20 is arranged on the heating chamber vacuum pipeline 19, the vacuum baffle valve 20 has the function of isolating vacuum, and the vacuum baffle valve 20 is arranged on the heating chamber vacuum pipeline 19 and can be used for switching on or switching off the air flow in the heating chamber vacuum pipeline to control air suction and inflation. The air suction pipe 9 of the cooling fan 5 is connected with the heating chamber through the heating chamber air suction port 30 arranged on the furnace shell 1, the air suction pipe 9 is connected with the external cooling fan 5, air cooled by the cooling fan 5 enters the heating chamber through the air outlet pipe 10 to cool, and the cooling fan 5 can realize various cooling processes.
As shown in fig. 3, the furnace top 11 is connected with the top of the furnace shell 1 through a flange cover 21, the flange cover 21 is connected with the furnace shell 1 and the furnace top 11 through a locking structure 23, a hanging ring 22 is further arranged on the flange cover 21, the furnace top 11 and the furnace shell 1 are connected more firmly and stably through the flange cover 21 and the locking structure 23, and the flange cover 21 is more convenient through the hanging ring 22. The furnace tube vacuum unit 3 is connected with the central furnace tube 7 through a furnace tube vacuum pipeline 28 and a furnace tube vacuumizing interface 25 arranged on the side wall of the furnace roof 11, a furnace tube vacuum baffle valve 29 is arranged on the furnace tube vacuum pipeline 28, a plurality of vacuum dynamometer interfaces 26 are arranged on the furnace tube vacuumizing interface 25, a safety valve interface 27 is further arranged on the side wall of the furnace roof 11, and the safety valve interface 27 is used for installing a safety valve. The furnace tube vacuum unit 3 is connected with a workpiece vacuum interface 31 arranged at the top end of the workpiece 8 through workpiece vacuum pipelines 32, and an electromagnetic valve 24 is arranged between the workpiece vacuum interface 31 and the workpiece 8, so that the independent control of the air suction of each workpiece vacuum pipeline 32 can be realized.
The working process of the embodiment is as follows, when in use, one end of a workpiece 8 is welded and leak rate test is carried out, then the workpiece 8 is put into a central furnace tube 7 by utilizing a hammock, and an operator fills aluminizing agent into the workpiece 8 one by one; after filling, sealing the workpieces, sealing all the workpieces 8 and connecting the workpieces with a workpiece vacuum pipeline 32 through a workpiece vacuum interface 31; the air tightness of the heating chamber, the central furnace tube 7 and the workpiece 8 is checked by utilizing the heating chamber vacuum unit 2, the furnace tube vacuum unit 3 and the workpiece vacuum unit 4; after the air tightness is checked, the inner cavities of the heating chamber, the central furnace tube 7 and the workpiece 8 are vacuumized, and the temperature is raised and heated according to the production process; heating the chamber to a heat preservation temperature for aluminizing; after the aluminizing is finished, cooling to a proper temperature, taking out the workpiece 8 for sand blasting and cleaning, and finishing the aluminizing treatment of the workpiece.
The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. The vacuum aluminizing heat treatment device for the slender pipe fitting is used for producing slender workpieces (8) and is characterized by comprising a furnace shell (1), a heating chamber vacuum unit (2), a cooling fan (5), a furnace top (11), a furnace tube vacuum unit (3), a workpiece vacuum unit (4) and a control cabinet (6); the furnace shell (1) is vertically arranged on the ground, a heating chamber is arranged in the furnace shell (1), a central furnace tube (7) is arranged in the center of the heating chamber, a workpiece (8) is placed in the central furnace tube (7), and an aluminizing agent is filled in the workpiece (8); the heating chamber vacuum unit (2) is arranged on the ground and penetrates through the furnace shell (1) to be connected with the lower part of the heating chamber; the cooling fan (5) is arranged on the ground, an air suction pipe (9) of the cooling fan (5) is connected with the upper part of the furnace shell (1), and an air outlet pipe (10) of the cooling fan (5) is connected with the lower part of the furnace shell (1); the furnace top (11) is arranged at the top of the furnace shell (1) and is communicated with the central furnace tube (7), the furnace tube vacuum unit (3) is connected with the furnace top (11), and the top of the workpiece (8) extends out of the top of the furnace top (11) and is connected with the workpiece vacuum unit (4); the heating chamber vacuum unit (2), the cooling fan (5), the furnace tube vacuum unit (3), the workpiece vacuum unit (4) and the heating chamber are connected with the control cabinet (6).
2. The vacuum aluminizing heat treatment device for the slender pipe fitting according to claim 1, wherein the furnace shell (1) is of a double-wall structure, a waterway system is arranged in a clamping wall of the furnace shell (1), and brackets (12) are arranged on two sides of the furnace shell (1).
3. The vacuum aluminizing heat treatment device for the slender pipe fitting according to claim 1, wherein the furnace shell (1) and the heating chamber are of eight-section structures, a thermocouple interface (17) is arranged on the side wall of the furnace shell (1), a thermocouple is arranged in the thermocouple interface (17), the thermocouple stretches into the heating chamber through the thermocouple interface (17), and the thermocouple is connected with a control cabinet (6).
4. An elongated tubular vacuum alumetizing heat treatment device according to claim 1, characterized in that the heating chamber comprises, in order from outside to inside, a heating chamber housing (13), a heat shield (14) and a heating wire (15), the heating electrode (16) of the heating wire (15) extending out of the furnace shell (1) and being connected to the circuit of the control cabinet (6).
5. An elongated tubular vacuum aluminizing heat treatment device according to claim 1, characterized in that the heating chamber vacuum unit (2) is in communication with the heating chamber through a heating chamber vacuum conduit (19) and a heating vacuum port (18) provided on the furnace shell (1), the heating chamber vacuum conduit (19) being provided with a vacuum baffle valve (20).
6. An elongated tubular vacuum aluminizing heat treatment device according to claim 1, characterized in that the suction pipe (9) of the cooling fan (5) is connected to the heating chamber via a heating chamber suction port (30) provided on the furnace shell (1).
7. The vacuum aluminizing heat treatment device for slender pipe fittings according to claim 1, characterized in that the furnace top (11) is connected with the top of the furnace shell (1) through a flange plate cover (21), the flange plate cover (21) is connected with the furnace shell (1) and the furnace top (11) through a locking structure (23), and a hanging ring (22) is further arranged on the flange plate cover (21).
8. The vacuum aluminizing heat treatment device for the slender pipe fitting according to claim 1, wherein the furnace tube vacuum unit (3) is connected with the central furnace tube (7) through a furnace tube vacuum pipeline (28) and a furnace tube vacuumizing interface (25) arranged on the side wall of the furnace top (11), a furnace tube vacuum baffle valve (29) is arranged on the furnace tube vacuum pipeline (28), a plurality of vacuum dynamometer interfaces (26) are arranged on the furnace tube vacuumizing interface (25), and a safety valve interface (27) is further arranged on the side wall of the furnace top (11).
9. The vacuum aluminizing heat treatment device for slender pipe fittings according to claim 1, characterized in that the furnace tube vacuum unit (3) is connected with a workpiece vacuum interface (31) arranged at the top end of a workpiece (8) through a workpiece vacuum pipeline (32), and an electromagnetic valve (24) is arranged between the workpiece vacuum interface (31) and the workpiece (8).
10. The vacuum aluminizing heat treatment device for the slender pipe fitting according to claim 1, wherein a sewage draining waterproof structure is arranged at the bottom of the furnace shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222967426.7U CN220520593U (en) | 2022-11-08 | 2022-11-08 | Vacuum aluminizing heat treatment device for slender pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222967426.7U CN220520593U (en) | 2022-11-08 | 2022-11-08 | Vacuum aluminizing heat treatment device for slender pipe fitting |
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| Publication Number | Publication Date |
|---|---|
| CN220520593U true CN220520593U (en) | 2024-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222967426.7U Active CN220520593U (en) | 2022-11-08 | 2022-11-08 | Vacuum aluminizing heat treatment device for slender pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220520593U (en) |
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2022
- 2022-11-08 CN CN202222967426.7U patent/CN220520593U/en active Active
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