CN220788802U - Cathode protection structure and offshore wind power impressed current cathode protection system - Google Patents
Cathode protection structure and offshore wind power impressed current cathode protection system Download PDFInfo
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- CN220788802U CN220788802U CN202322476840.2U CN202322476840U CN220788802U CN 220788802 U CN220788802 U CN 220788802U CN 202322476840 U CN202322476840 U CN 202322476840U CN 220788802 U CN220788802 U CN 220788802U
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- reference electrode
- protection structure
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- mounting bracket
- sleeve
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- 239000002131 composite material Substances 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000004210 cathodic protection Methods 0.000 claims description 30
- 230000000670 limiting effect Effects 0.000 claims description 13
- 210000004907 gland Anatomy 0.000 claims description 6
- 239000000565 sealant Substances 0.000 claims description 6
- 229910021607 Silver chloride Inorganic materials 0.000 claims description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 5
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 claims description 5
- 239000011701 zinc Substances 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical class [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Prevention Of Electric Corrosion (AREA)
Abstract
The utility model discloses a cathode protection structure and an offshore wind power impressed current cathode protection system, and relates to the technical field of offshore wind power, wherein the offshore wind power impressed current cathode protection system comprises an adjusting module; the cathode protection structure comprises a mounting bracket, a first reference electrode and a second reference electrode; the mounting bracket is connected to the composite cable; the first reference electrode is connected to the mounting bracket and is electrically connected with a target cable in the composite cable and a signal acquisition end of the adjusting module; the second reference electrode is connected to the mounting bracket and is electrically connected with a target cable in the composite cable and a signal acquisition end of the adjusting module, and the material of the second reference electrode is different from that of the first reference electrode; the adjusting module adjusts the output current of the current output end according to the potential value of the first reference electrode and the potential value of the second reference electrode. The cathode protection structure can solve the technical problems that the installation and maintenance of the existing electrochemical protection device are inconvenient, and the overall failure of an electrochemical protection system is caused once the damage occurs.
Description
Technical Field
The utility model relates to the technical field of offshore wind power, in particular to a cathode protection structure and an offshore wind power impressed current cathode protection system.
Background
The offshore wind power generation technology can effectively utilize offshore strong wind resources to generate power, and has great development potential. However, offshore wind power equipment is in severe environments such as tide and seawater corrosion for a long time, and has problems such as corrosion, electrochemical corrosion and galvanic corrosion.
The corrosion protection design of offshore wind power equipment generally adopts a mode of combining physical protection and electrochemical protection, wherein the electrochemical protection mainly adopts a sacrificial anode protection method and an impressed current cathodic protection method. However, the existing electrochemical protection device has the problem of inconvenient installation and maintenance, and once the main functional devices such as the reference electrode in the electrochemical protection device are damaged during operation and maintenance, the electrochemical protection system is totally disabled, and the electrochemical protection device is replaced and reinstalled with high manufacturing cost and high difficulty.
Disclosure of Invention
The utility model aims to provide a cathode protection structure, which aims to solve the technical problems that the installation and maintenance of the existing electrochemical protection device are inconvenient, and the overall failure of an electrochemical protection system is caused once the electrochemical protection device is damaged.
The utility model adopts the following technical scheme to achieve the aim of the utility model:
the cathode protection structure is applied to an offshore wind power impressed current cathode protection system, and the offshore wind power impressed current cathode protection system comprises an adjusting module, wherein the adjusting module is provided with a signal acquisition end and a current output end; the cathode protection structure includes:
the mounting bracket is detachably connected to the composite cable;
the first reference electrode is connected to the mounting bracket and is electrically connected with a target cable in the composite cable and the signal acquisition end;
the second reference electrode is connected to the mounting bracket, and is electrically connected with a target cable in the composite cable and the signal acquisition end, and the material of the second reference electrode is different from that of the first reference electrode;
the adjusting module is used for adjusting the output current of the current output end according to the potential value of the first reference electrode and the potential value of the second reference electrode.
Further, the mounting bracket comprises a connecting cylinder body and a connecting seat; one end of the connecting seat is connected to the middle part of the connecting cylinder body, and the other end of the connecting seat is detachably connected to the composite cable; the connecting seat is internally provided with a wiring channel, the wiring channel is communicated with the inner cavity of the connecting cylinder, and the target cable extends into the inner cavity of the connecting cylinder through the wiring channel; the first reference electrode is inserted into the first end of the connecting cylinder body, and the second reference electrode is inserted into the second end of the connecting cylinder body.
Further, the target cable is welded on the conducting rod of the first reference electrode and the conducting rod of the second reference electrode.
Further, the mounting bracket includes a first sleeve and a first end cap; the first sleeve is sleeved at the first end of the connecting cylinder body and encloses the first reference electrode, and the first end cover is covered at one end of the first sleeve, which is opposite to the connecting cylinder body.
Further, the mounting bracket includes a second sleeve and a second end cap; the second sleeve is sleeved at the second end of the connecting cylinder and encloses the second reference electrode, and the second end cover is covered at one end of the second sleeve, which is opposite to the connecting cylinder.
Further, sealant is filled in the first sleeve; and/or the second sleeve is filled with sealant.
Further, the connecting seat comprises a base and a gland; the base is provided with a limiting groove, and the composite cable is arranged in the limiting groove; the gland is locked on the base so as to press the composite cable into the limit groove.
Further, the extending direction of the limiting groove is perpendicular to the extending direction of the connecting cylinder.
Further, the first reference electrode is a high-purity zinc reference electrode, an Ag/AgCl reference electrode and a Cu/saturated CuSO 4 Any one of the reference electrodes.
Further, the second reference electrode is a high-purity zinc reference electrode, an Ag/AgCl reference electrode and a Cu/saturated CuSO 4 Any one of the reference electrodes.
Correspondingly, the utility model also provides an offshore wind power impressed current cathodic protection system, which comprises the cathodic protection structure.
Compared with the prior art, the utility model has the beneficial effects that:
according to the cathode protection structure provided by the utility model, the mounting bracket provided with the first reference electrode and the second reference electrode is conveniently and quickly mounted on the composite cable in a detachable manner, and the target cable in the composite cable is respectively electrically connected with the first reference electrode and the second reference electrode, so that the regulating module can accurately measure the electromotive force value of the target cable under the potential reference effect of the first reference electrode and the second reference electrode, the regulating module can control the output current according to the measured electromotive force value, the external current cathode protection of the offshore wind power equipment is realized in an intelligent regulation mode, and the operation safety and reliability of the offshore wind power equipment can be improved. The cathode protection structure is simple, is convenient for operators to install on the sea, and can reduce the difficulty of manual operation, thereby reducing the construction cost and the operation cost; in addition, the first reference electrode and the second reference electrode can be mutually checked, and the defect that the whole electrochemical protection system fails due to the fact that one reference electrode fails can be avoided, so that the reliability of the cathode protection system is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing the internal structure of a cathode protection structure according to an embodiment of the present utility model;
fig. 2 is a schematic perspective view of an embodiment of a cathodic protection structure according to the present utility model.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 1 | Mounting bracket | 13 | First sleeve barrel |
| 2 | First reference electrode | 14 | First end cap |
| 3 | Second reference electrode | 121 | Base seat |
| 4 | Composite cable | 122 | Gland |
| 11 | Connecting cylinder | 1211 | Limiting groove |
| 12 | Connecting seat |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all 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, if a directional indication (such as up, down, left, right, front, and rear … …) is involved in the embodiment of the present utility model, the directional indication is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B "including a scheme, or B scheme, or a scheme where a and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
Referring to fig. 1 and 2, an embodiment of the present utility model provides a cathodic protection structure applied to an offshore wind turbine impressed current cathodic protection system, which includes an adjustment module (not shown in the drawings) having a signal acquisition end and a current output end; the cathodic protection structure comprises a mounting bracket 1, a first reference electrode 2 and a second reference electrode 3, wherein:
the mounting bracket 1 is detachably connected to the composite cable 4; specifically, the mounting bracket 1 may adopt a structural form such as a clip, a clamping block, etc., and be fixed at a preset position on the composite cable 4 by means of cohesion, clamping, etc. in cooperation with fastening devices such as a locking member, a riveting member, a buckle, etc.
The first reference electrode 2 is connected to the mounting bracket 1, and the first reference electrode 2 is electrically connected to a target cable (not shown) and a signal acquisition end in the composite cable 4.
The second reference electrode 3 is connected to the mounting bracket 1, the second reference electrode 3 is electrically connected with a target cable and a signal acquisition end in the composite cable 4, and the material of the second reference electrode 3 is different from that of the first reference electrode 2.
The adjusting module is used for adjusting the output current of the current output end according to the potential value of the first reference electrode 2 and the potential value of the second reference electrode 3. Specifically, the adjusting module can adopt a controller with a signal receiving function and a signal outputting function, and the adjusting module can acquire the potential value of the first reference electrode 2 and the potential value of the second reference electrode 3 through the signal acquisition end of the adjusting module; under the potential reference effect provided by the first reference electrode 2 and the second reference electrode 3, the regulating module can accurately measure the electromotive force value of the target cable, so that the regulating module can control the output current according to the measured electromotive force value, and the structure connected with the composite cable 4 on the wind power equipment is electrochemically protected by an impressed current cathodic protection method.
In this embodiment, the composite cable 4 includes an insulating protective layer that encloses to form a receiving cavity in which the target cable and other cables are disposed. In the actual installation process, the target cable at the connection part of the installation support 1 and the composite cable 4 can extend outwards from the insulating protective layer, and the extending target cable can extend into the installation support 1 and be respectively connected with the first reference electrode 2 and the second reference electrode 3.
The first reference electrode 2 and the second reference electrode 3 can be any one of a high-purity zinc reference electrode, an Ag/AgCl reference electrode and a Cu/saturated CuSO4 reference electrode. Because the first reference electrode 2 and the second reference electrode 3 are respectively made of different materials, and the performances of the different electrode materials under different application scenes may have certain difference, the potential reference result of the first reference electrode 2 and the potential reference result of the second reference electrode 3 can be used for mutual verification, so that the accuracy of measuring the electromotive force of the target cable is improved, and the impressed current cathodic protection effect of the offshore wind power equipment is improved.
Therefore, in the cathodic protection structure provided by this embodiment, the mounting bracket 1 provided with the first reference electrode 2 and the second reference electrode 3 is conveniently and quickly mounted on the composite cable 4 in a detachable manner, and the target cable in the composite cable 4 is respectively electrically connected with the first reference electrode 2 and the second reference electrode 3, so that the regulating module can accurately measure the electromotive force value of the target cable under the potential reference effect of the first reference electrode 2 and the second reference electrode 3, and the regulating module can control the output current according to the measured electromotive force value, thereby realizing the cathodic protection of the external current of the offshore wind power equipment in an intelligent regulation and control manner, and improving the operation safety and reliability of the offshore wind power equipment. The cathode protection structure is simple, is convenient for operators to install on the sea, and can reduce the difficulty of manual operation, thereby reducing the construction cost and the operation cost; in addition, the first reference electrode 2 and the second reference electrode 3 can be mutually checked, and the defect that the whole electrochemical protection system fails due to the failure of one of the reference electrodes can be avoided, so that the reliability of the cathode protection system is improved.
Alternatively, referring to fig. 1 and 2, the mounting bracket 1 includes a connection cylinder 11 and a connection seat 12; one end of the connecting seat 12 is connected to the middle part of the connecting cylinder 11, and the other end of the connecting seat 12 is detachably connected to the composite cable 4; a wiring channel (not shown in the figure) is arranged in the connecting seat 12, the wiring channel is communicated with the inner cavity of the connecting cylinder 11, and a target cable extends into the inner cavity of the connecting cylinder 11 through the wiring channel; the first reference electrode 2 is inserted into the first end of the connecting cylinder 11, and the second reference electrode 3 is inserted into the second end of the connecting cylinder 11.
Optionally, referring to fig. 1 and 2, the target cable is soldered to a conductive rod (not shown) of the first reference electrode 2 and a conductive rod (not shown) of the second reference electrode 3.
Alternatively, referring to fig. 1 and 2, the mounting bracket 1 includes a first sleeve 13 and a first end cap 14; the first sleeve 13 is sleeved at the first end of the connecting cylinder 11 and encloses the first reference electrode 2, and the first end cover 14 covers one end of the first sleeve 13, which is opposite to the connecting cylinder 11.
Optionally, referring to fig. 1 and 2, the mounting bracket 1 includes a second sleeve (not shown) and a second end cap (not shown); the second sleeve is sleeved at the second end of the connecting cylinder 11 and encloses the second reference electrode 3, and the second end cover is covered at one end of the second sleeve, which is opposite to the connecting cylinder 11.
Optionally, referring to fig. 1 and 2, the first sleeve 13 is filled with sealant; and/or the second sleeve is filled with sealant.
Based on the cathode protection structure in the above embodiment, the corresponding mounting steps are as follows:
firstly, a first reference electrode 2 and a second reference electrode 3 are respectively inserted into two ends of a connecting cylinder 11, then a composite cable 4 is outwards pulled out at a preset installation position, a target cable in the composite cable 4 is cut off, and then the target cable and two conducting rods are respectively welded together; after welding, two conducting rods carrying a target cable pass through the wiring channel and are respectively placed in the first reference electrode 2 and the second reference electrode 3; after the position of the target cable is adjusted, the connecting seat 12 can be locked on the composite cable 4 by using fasteners such as bolts, so that the first reference electrode 2 and the second reference electrode 3 can be fixed at proper positions on the composite cable 4; finally, the first sleeve 13 and the second sleeve are respectively sleeved on one end of the first reference electrode 2 and the second reference electrode 3, which are exposed out of the connecting cylinder 11, and then sealing glue is injected into the inner cavities of the first sleeve 13 and the second sleeve, the first sleeve 13 and the second sleeve are respectively sealed by the first end cover 14 and the second end cover, and the sealing glue can be completely solidified after standing for 24 hours, so that good fixing and protecting effects can be formed on the first reference electrode 2 and the second reference electrode 3 by the sealing glue, and the service life of the reference electrode can be prolonged.
Optionally, referring to fig. 1 and 2, the connecting seat 12 includes a base 121 and a gland 122; the base 121 has a limiting groove 1211, and the composite cable 4 is disposed in the limiting groove 1211; the pressing cover 122 is locked on the base 121 to press the composite cable 4 into the limiting groove 1211.
Specifically, the cross-sectional profile of the limiting groove 1211 may be set according to the cross-sectional dimension of the composite cable 4, so as to form a good limiting effect on the composite cable 4, so that the pressing stability of the pressing cover 122 on the composite cable 4 may be improved, and the composite cable 4 is prevented from rotating and shifting after being pressed. Preferably, the extending direction of the limiting groove 1211 is perpendicular to the extending direction of the connecting cylinder 11, so that the rationality of the structural layout can be improved, and the interference of the first reference electrode 2, the second reference electrode 3 and the composite cable 4 is avoided.
Correspondingly, referring to fig. 1 and 2, an embodiment of the present utility model further provides an offshore wind turbine impressed current cathodic protection system, which includes the cathodic protection structure in any of the above embodiments.
The offshore wind power impressed current cathodic protection system of the embodiment is applied to offshore wind power generation equipment. Based on the improvement of the cathodic protection structure in the above embodiment, the adjusting module in the offshore wind power impressed current cathodic protection system of the embodiment can accurately measure the electromotive force value of the target cable in the composite cable 4 under the potential reference effect of the first reference electrode 2 and the second reference electrode 3, so that the adjusting module can control the output current according to the measured electromotive force value, the impressed current cathodic protection of the offshore wind power equipment is realized in an intelligent regulation mode, and the operation safety and reliability of the offshore wind power equipment can be improved.
The offshore wind power impressed current cathodic protection system adopts all the technical schemes of all the embodiments, so that the offshore wind power impressed current cathodic protection system has at least all the beneficial effects brought by the technical schemes of the embodiments and is not described in detail herein.
It should be noted that, other contents of the cathodic protection structure and the offshore wind power impressed current cathodic protection system disclosed by the utility model can be referred to the prior art, and are not described herein again.
The foregoing is only an optional embodiment of the present utility model, and is not limited to the scope of the patent application, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the patent application.
Claims (10)
1. The cathode protection structure is applied to an offshore wind power impressed current cathode protection system and is characterized by comprising an adjusting module, wherein the adjusting module is provided with a signal acquisition end and a current output end; the cathode protection structure includes:
the mounting bracket is detachably connected to the composite cable;
the first reference electrode is connected to the mounting bracket and is electrically connected with a target cable in the composite cable and the signal acquisition end;
the second reference electrode is connected to the mounting bracket, and is electrically connected with a target cable in the composite cable and the signal acquisition end, and the material of the second reference electrode is different from that of the first reference electrode;
the adjusting module is used for adjusting the output current of the current output end according to the potential value of the first reference electrode and the potential value of the second reference electrode.
2. The cathodic protection structure of claim 1 wherein the mounting bracket comprises a connecting cylinder and a connecting seat; one end of the connecting seat is connected to the middle part of the connecting cylinder body, and the other end of the connecting seat is detachably connected to the composite cable; the connecting seat is internally provided with a wiring channel, the wiring channel is communicated with the inner cavity of the connecting cylinder, and the target cable extends into the inner cavity of the connecting cylinder through the wiring channel; the first reference electrode is inserted into the first end of the connecting cylinder body, and the second reference electrode is inserted into the second end of the connecting cylinder body.
3. The cathodic protection structure of claim 2 wherein the target cable is welded to the conductive rod of the first reference electrode and the conductive rod of the second reference electrode.
4. The cathodic protection structure of claim 2 wherein the mounting bracket comprises a first sleeve and a first end cap; the first sleeve is sleeved at the first end of the connecting cylinder body and encloses the first reference electrode, and the first end cover is covered at one end of the first sleeve, which is opposite to the connecting cylinder body;
and/or the mounting bracket comprises a second sleeve and a second end cover; the second sleeve is sleeved at the second end of the connecting cylinder and encloses the second reference electrode, and the second end cover is covered at one end of the second sleeve, which is opposite to the connecting cylinder.
5. The cathodic protection structure of claim 4 wherein the first sleeve is filled with a sealant; and/or the second sleeve is filled with sealant.
6. The cathodic protection structure of claim 2 wherein the connection seat comprises a base and a gland; the base is provided with a limiting groove, and the composite cable is arranged in the limiting groove; the gland is locked on the base so as to press the composite cable into the limit groove.
7. The cathode protection structure according to claim 6, wherein the extending direction of the limiting groove is perpendicular to the extending direction of the connecting cylinder.
8. The cathodic protection structure of claim 1 wherein the first reference electrode is a high purity zinc reference electrode, an Ag/AgCl reference electrode, a Cu/saturated CuSO reference electrode 4 Any one of the reference electrodes.
9. The cathodic protection structure of claim 1 wherein the second reference electrode is a high purity zinc reference electrode, an Ag/AgCl reference electrode, a Cu/saturated CuSO reference electrode 4 Any one of the reference electrodes.
10. An offshore wind powered impressed current cathodic protection system comprising a cathodic protection structure as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322476840.2U CN220788802U (en) | 2023-09-11 | 2023-09-11 | Cathode protection structure and offshore wind power impressed current cathode protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322476840.2U CN220788802U (en) | 2023-09-11 | 2023-09-11 | Cathode protection structure and offshore wind power impressed current cathode protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220788802U true CN220788802U (en) | 2024-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322476840.2U Active CN220788802U (en) | 2023-09-11 | 2023-09-11 | Cathode protection structure and offshore wind power impressed current cathode protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220788802U (en) |
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2023
- 2023-09-11 CN CN202322476840.2U patent/CN220788802U/en active Active
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