CN220231688U - Large-range high-precision dissolved carbon dioxide sensor for aquaculture - Google Patents
Large-range high-precision dissolved carbon dioxide sensor for aquaculture Download PDFInfo
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- CN220231688U CN220231688U CN202320107140.3U CN202320107140U CN220231688U CN 220231688 U CN220231688 U CN 220231688U CN 202320107140 U CN202320107140 U CN 202320107140U CN 220231688 U CN220231688 U CN 220231688U
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 198
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 101
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 101
- 238000009360 aquaculture Methods 0.000 title claims abstract description 21
- 244000144974 aquaculture Species 0.000 title claims abstract description 21
- 239000000523 sample Substances 0.000 claims abstract description 128
- 239000012528 membrane Substances 0.000 claims abstract description 27
- 238000007872 degassing Methods 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims abstract description 12
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 238000005259 measurement Methods 0.000 claims abstract description 5
- 238000002955 isolation Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 210000004907 gland Anatomy 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 241000251468 Actinopterygii Species 0.000 description 14
- 239000007789 gas Substances 0.000 description 11
- 238000012544 monitoring process Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 206010010071 Coma Diseases 0.000 description 1
- 208000000059 Dyspnea Diseases 0.000 description 1
- 206010013975 Dyspnoeas Diseases 0.000 description 1
- 238000004566 IR spectroscopy Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 108010066057 cabin-1 Proteins 0.000 description 1
- 238000010219 correlation analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000366 juvenile effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000001769 paralizing effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Abstract
The utility model discloses a wide-range high-precision dissolved carbon dioxide sensor for aquaculture, which comprises a cabin body, a gas-liquid separation part, a gas measurement part and a control part, wherein the cabin body is provided with a gas sensor; the gas-liquid separation part comprises a degassing membrane, a gasket and a protective cover which are arranged at the front end of the cabin body; the gas measuring part is positioned in the cabin body at the inner side of the degassing membrane and comprises a probe fixing piece, a carbon dioxide probe and a warm-wet pressure probe which are arranged on the probe fixing piece, the control part comprises a control circuit which is arranged in the cabin body, and the carbon dioxide probe and the warm-wet pressure probe are respectively connected with the control circuit. The utility model can measure the concentration of the dissolved carbon dioxide with the water depth of 200 meters and shallower, has a wide range of 200-50000ppm, can reach +/-2% of precision within the range of 200-10000ppm, can reach +/-3% of precision within the range of 10000-50000ppm, can be independently used, and can also be carried on various underwater carrying platforms for use.
Description
Technical Field
The utility model relates to the technical field of gas detection, in particular to a wide-range high-precision dissolved carbon dioxide sensor for aquaculture.
Background
Carbon dioxide (CO) 2 ) Has great influence on fish and water environment. It is a raw material for photosynthesis of aquatic plants, and the lack of the raw material can limit the growth and propagation of plants; the high-concentration carbon dioxide has paralytic and toxic effects on fish, such as lowering the PH value of blood of fish body, and weakening the affinity to oxygen. Most fish are tolerant to less than 10mg/L dissolved carbon dioxide (about 6000ppm CO) 2 ) The method comprises the steps of carrying out a first treatment on the surface of the When the free carbon dioxide (i.e., the concentration of dissolved carbon dioxide gas in the water) reached 80mg/L (about 48000ppm CO) 2 ) When the juvenile fish of the four-big family fish is in dyspnea; over 100mg/L (about 60000ppm CO 2 ) When the patient is in a coma or lies on one side; over 200mg/L (about 120000ppm CO) 2 ) When death is caused.
Although the condition of too high carbon dioxide concentration rarely occurs in the environments such as a general pond, a marine pasture and the like, the overwintering period of fishes in winter in the north is long, the condition that the fishes cannot survive due to the fact that the excessive quantity of fishes can reach a corresponding concentration due to the fact that the carbon dioxide accumulation can occur is likely to occur, and the condition is likely to occur in the fish transportation process. Therefore, in-situ, continuous and high-precision monitoring of the concentration of dissolved carbon dioxide in the water environment is required in the processes of fish culture, transportation and the like, and the abnormality of the concentration of carbon dioxide is found in time, so that the survival rate of fish is ensured.
The dissolved carbon dioxide concentration can be measured in a number of ways, including chemical laboratory analysis of a water sample, analysis using a liquid indicator dye, and diffusion through a membrane to an infrared gaseous carbon dioxide detector. Among these several methods: water sampling and laboratory analysis are time and labor consuming and the time difference between sampling and measurement can have an impact on the accuracy of the results; the method for analyzing the dye needs to replace the indicator frequently, so that long-time continuous monitoring cannot be realized; the combination of membrane diffusion and infrared spectroscopy is currently the most suitable method for long-term monitoring of dissolved carbon dioxide concentration in water. A common problem with such sensors is that: when the large measuring range is satisfied, the accuracy is often poor, and the measurement result has larger uncertainty, so that the abnormality of the carbon dioxide concentration cannot be found in time.
Thus, there is a need for an underwater in situ carbon dioxide sensor with a wide range of high accuracy.
Disclosure of Invention
The utility model aims to solve the problem that the existing sensor for measuring the concentration of dissolved carbon dioxide has large uncertainty and cannot find abnormality of the concentration of carbon dioxide in time due to the fact that the existing sensor for measuring the concentration of the dissolved carbon dioxide has large measuring range and high precision, and provides a large-measuring range high-precision dissolved carbon dioxide sensor for aquaculture so as to solve the common problems of the existing sensor.
In order to achieve the above object, the present utility model provides the following solutions:
the utility model provides a wide-range high-precision dissolved carbon dioxide sensor for aquaculture, which comprises a cabin body, a gas-liquid separation part, a gas measurement part and a control part, wherein the cabin body is provided with a gas sensor; the gas-liquid separation part comprises a degassing membrane, a gasket and a protective cover which are arranged at the front end of the cabin body; the gas measuring part is positioned in the cabin body at the inner side of the degassing membrane and comprises a probe fixing piece, a carbon dioxide probe and a warm-wet pressure probe which are arranged on the probe fixing piece, the control part comprises a control circuit which is arranged in the cabin body, and the carbon dioxide probe and the warm-wet pressure probe are respectively connected with the control circuit.
As a further scheme of the utility model, the protective cover is fixed at the front end of the cabin body, the degassing membrane is fixed in a groove of a front end cover arranged at the front end of the cabin body, the degassing membrane is positioned between the protective cover and the front end cover, and the gasket is arranged at one side of the front end cover; wherein, gasket and safety cover play the effect of supporting and protecting the degassing membrane respectively, avoid causing the damage to the degassing membrane surface because of atmospheric pressure change or fish pecking.
As a further scheme of the utility model, the carbon dioxide probe comprises a carbon dioxide probe I and a carbon dioxide probe II which are detected in a double-probe combination mode, wherein the carbon dioxide probe I is a wide-range low-precision probe, the carbon dioxide probe II is a small-range high-precision probe, and the carbon dioxide probe I and the carbon dioxide probe II are fixed with the warm-wet pressure probe through the same probe fixing piece, so that the consistency of detection conditions and the synchronism of acquired data are ensured.
As a further scheme of the utility model, three hole sites with different sizes are arranged on the probe fixing piece, the carbon dioxide probe I, the carbon dioxide probe II and the warm-wet pressure probe are embedded in the corresponding hole sites on the probe fixing piece in a staggered manner, and the detection surfaces of the three probes are all arranged towards the degassing membrane.
As a further scheme of the utility model, the measuring range of the carbon dioxide probe I is 5000-50000ppm, the precision is +/-3%, the resolution is 100ppm, the measuring range of the carbon dioxide probe II is 200-10000ppm, the precision is +/-2% of the reading, and the resolution is 1ppm.
As a further scheme of the utility model, the measuring ranges of the carbon dioxide probe I and the carbon dioxide probe II are partially overlapped, and if the difference between the readings of the two probes is less than 100ppm in the overlapped concentration range, the reading of the small-range high-precision probe is taken as the final reading; if the readings of the two probes differ by more than 100ppm, the final result is obtained by correcting the readings of the two probes.
As a further scheme of the utility model, the probe fixing piece is provided with a power supply line which penetrates through the wiring hole, and glue is filled in a hole gap of the wiring hole for sealing.
As a further scheme of the utility model, the side surface of the probe fixing piece is provided with the isolation groove, the isolation groove is internally provided with the sealing ring, and the gas measuring part is isolated from the control part by arranging the sealing ring in the isolation groove, so that the volume of the gas chamber is conveniently compressed to the minimum, the gas-liquid balance efficiency is quickened, and the response time of the instrument is shortened.
As a further scheme of the utility model, a front end cover and a rear end cover are respectively arranged on the front side and the rear side of the cabin body, a groove is formed in the front end cover, and the degassing membrane is fixed in the groove through a screw and a gland; the carbon dioxide probe, the temperature-humidity-pressure probe and the probe fixing piece are embedded into the rear end of the front end cover; the control circuit is located between the probe mount and the rear end cap.
As a further scheme of the utility model, the protective cover is provided with the fixing holes, and the protective cover is fixed on the outer part of the front end cover through screws, and can be flexibly disassembled or replaced with different apertures according to actual application requirements.
Compared with the prior art, the utility model has the following beneficial effects:
the wide-range high-precision dissolved carbon dioxide sensor for aquaculture provided by the utility model can measure the concentration of dissolved carbon dioxide with the water depth of 200 meters to be shallow, has a wide range of 200-50000ppm, can reach the precision of +/-2% in the range of 200-10000ppm and the precision of +/-3% in the range of 10000-50000ppm, can be independently used, and can also be carried on various underwater carrying platforms for use.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a wide-range high-precision dissolved carbon dioxide sensor for aquaculture of the present utility model.
Wherein, 1-cabin body, 2-degassing membrane, 3-gasket, 4-safety cover, 5-probe mounting, 6-carbon dioxide probe I, 7-carbon dioxide probe II, 8-warm and humid pressure probe, 9-control circuit, 10-front end housing, 11-rear end housing.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
The utility model aims to overcome the defects and shortcomings of the prior art and provides a large-range high-precision dissolved carbon dioxide sensor for aquaculture.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1, the utility model provides a wide-range high-precision dissolved carbon dioxide sensor for aquaculture, which comprises a cabin body 1 and a measuring assembly arranged on the cabin body 1, wherein the measuring assembly comprises a gas-liquid separation part, a gas measuring part and a control part which are sequentially distributed on the cabin body 1. The gas-liquid separation part comprises a degassing membrane 2, a gasket 3 and a protective cover 4 which are arranged at the front end of the cabin body 1.
In this embodiment, the protection cover 4 is fixed at the front end of the cabin body 1, the degassing membrane 2 is fixed in a groove of a front end cover 10 provided at the front end of the cabin body 1, the degassing membrane 2 is located between the protection cover 4 and the front end cover 10, and the gasket 3 is provided at one side of the front end cover 10; wherein, the gasket 3 and the protective cover 4 respectively play roles in supporting and protecting the degassing membrane 2, and damage to the surface of the degassing membrane 2 caused by air pressure change or fish pecking is avoided.
Referring to fig. 1, the gas measuring part is located in the cabin 1 inside the degassing membrane 2, and the gas measuring part comprises a probe fixing piece 5, and a carbon dioxide probe and a temperature-humidity-pressure probe 8 arranged on the probe fixing piece 5.
In this embodiment, the carbon dioxide probe includes a carbon dioxide probe i 6 and a carbon dioxide probe ii 7 that are detected by a dual-probe combination mode, the carbon dioxide probe i 6 is a wide-range low-precision probe, and the carbon dioxide probe ii 7 is a small-range high-precision probe.
The carbon dioxide probe I6 and the carbon dioxide probe II 7 are fixed with the temperature, humidity and pressure probe 8 through the same probe fixing piece 5, so that consistency of detection conditions and synchronism of acquired data are guaranteed. Referring to fig. 1, for the convenience of monitoring, the real-time synchronization of data is ensured, the response time of the instrument is shortened, three hole sites with different sizes are arranged on the probe fixing piece 5, the carbon dioxide probe I6, the carbon dioxide probe II 7 and the warm-wet pressure probe 8 are embedded in the corresponding hole sites on the probe fixing piece 5 in a staggered manner, and the detection surfaces of the three probes are arranged towards the degassing membrane 2, so that the consistency of detection conditions and the synchronism of data acquisition are ensured.
The utility model can measure the concentration of the dissolved carbon dioxide with the water depth of 200 meters and the data of temperature, humidity and pressure at the same time, has a wide range of 200-50000ppm, and can reach the precision of +/-2% in the range of 200-10000ppm and +/-3% in the range of 10000-50000 ppm. The measuring range of the carbon dioxide probe I6 is 5000-50000ppm, the precision is +/-3%, the resolution is 100ppm, the measuring range of the carbon dioxide probe II 7 is 200-10000ppm, the precision is +/-2% of the reading, and the resolution is 1ppm.
The volume of the measuring instrument is only phi 65mm 125mm, and the measuring instrument can be used independently or can be carried on various underwater carrying platforms for use.
In this embodiment, the measuring ranges of the carbon dioxide probe i 6 and the carbon dioxide probe ii 7 are partially overlapped, and if the difference between the readings of the two probes is less than 100ppm in the overlapped concentration range, the reading of the small-range high-precision probe is taken as the final reading; if the difference between the readings of the two probes is more than 100ppm, a final result is obtained through correlation analysis and data correction of the readings of the two probes.
The control part comprises a control circuit 9 arranged in the cabin body 1, and the carbon dioxide probe and the temperature, humidity and pressure probe 8 are respectively connected with the control circuit 9. The control circuit 9 respectively supplies power and controls the wide-range low-precision carbon dioxide probe I6, the small-range high-precision carbon dioxide probe II 7 and the temperature, humidity and pressure probe 8.
In this embodiment, the probe fixing member 5 is provided with a power supply line penetrating through the wiring hole, and glue is filled into a hole gap of the wiring hole to seal the hole gap.
In order to compress the volume of the air chamber to the minimum, accelerate the gas-liquid balance efficiency and shorten the response time of the instrument, an isolation groove is formed in the side face of the probe fixing piece 5, and a sealing ring is arranged in the isolation groove and is arranged in the isolation groove, so that the gas measuring part is isolated from the control part, and the volume of the air chamber is compressed to the minimum, accelerate the gas-liquid balance efficiency and shorten the response time of the instrument.
In this embodiment, a front end cover 10 and a rear end cover 11 are respectively disposed at the front and rear sides of the cabin body 1, a groove is formed on the front end cover 10, and the degassing membrane 2 is fixed in the groove through a screw and a gland; the carbon dioxide probe, the temperature-humidity-pressure probe 8 and the probe fixing piece 5 are embedded into the rear end of the front end cover 10; the control circuit 9 is located between the probe mount 5 and the rear end cap 11.
In this embodiment, the protection cover 4 is provided with a fixing hole, and is fixed on the outside of the front end cover 10 by a screw, and different apertures can be flexibly removed or replaced according to practical application requirements.
The wide-range high-precision dissolved carbon dioxide sensor for aquaculture provided by the utility model can measure the concentration of dissolved carbon dioxide with the water depth of 200 meters to be shallow, has a wide range of 200-50000ppm, can reach the precision of +/-2% in the range of 200-10000ppm and the precision of +/-3% in the range of 10000-50000ppm, can be independently used, and can also be carried on various underwater carrying platforms for use.
The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.
Claims (10)
1. A wide-range high-precision dissolved carbon dioxide sensor for aquaculture comprises a cabin body (1), a gas-liquid separation part, a gas measurement part and a control part; the method is characterized in that:
the gas-liquid separation part comprises a degassing membrane (2), a gasket (3) and a protective cover (4) which are arranged at the front end of the cabin body (1); the gas measuring part is located in the cabin body (1) at the inner side of the degassing membrane (2), the gas measuring part comprises a probe fixing piece (5), and a carbon dioxide probe and a temperature-humidity-pressure probe (8) which are arranged on the probe fixing piece (5), the control part comprises a control circuit (9) arranged in the cabin body (1), and the carbon dioxide probe and the temperature-humidity-pressure probe (8) are respectively connected with the control circuit (9).
2. The wide-range high-precision dissolved carbon dioxide sensor for aquaculture according to claim 1, wherein the protective cover (4) is fixed at the front end of the cabin body (1), the degassing membrane (2) is fixed in a groove of a front end cover (10) arranged at the front end of the cabin body (1), the degassing membrane (2) is positioned between the protective cover (4) and the front end cover (10), and the gasket (3) is arranged at one side of the front end cover (10).
3. The wide-range high-precision dissolved carbon dioxide sensor for aquaculture according to claim 2, wherein the carbon dioxide probe comprises a carbon dioxide probe I (6) and a carbon dioxide probe II (7) which are detected in a double-probe combination mode, the carbon dioxide probe I (6) is a wide-range low-precision probe, and the carbon dioxide probe II (7) is a small-range high-precision probe.
4. A wide range high precision dissolved carbon dioxide sensor for aquaculture according to claim 3, characterized in that the carbon dioxide probe i (6) and the carbon dioxide probe ii (7) are fixed with the thermo-hygrostat probe (8) by the same probe fixing (5); the probe fixing piece (5) is provided with three hole sites with different sizes, the carbon dioxide probe I (6), the carbon dioxide probe II (7) and the temperature, humidity and pressure probe (8) are embedded in the corresponding hole sites on the probe fixing piece (5) in a staggered manner, and the detection surfaces of the three probes are all arranged towards the degassing membrane (2).
5. The wide-range high-precision dissolved carbon dioxide sensor for aquaculture according to claim 4, wherein the measuring range of the carbon dioxide probe i (6) is 5000-50000ppm, the precision ± 3%, the resolution is 100ppm, the measuring range of the carbon dioxide probe ii (7) is 200-10000ppm, the precision is ± 2% of the reading, the resolution is 1ppm.
6. The wide-range high-precision dissolved carbon dioxide sensor for aquaculture according to claim 5, characterized in that the measuring ranges of the carbon dioxide probe i (6) and the carbon dioxide probe ii (7) are partially overlapped, and in the overlapped concentration range, if the readings of the two probes differ by less than 100ppm, the reading of the small-range high-precision probe is taken as the final reading; if the readings of the two probes differ by more than 100ppm, the final result is obtained by correcting the readings of the two probes.
7. The wide-range high-precision dissolved carbon dioxide sensor for aquaculture according to claim 4, wherein the probe fixing part (5) is provided with a power supply line which passes through a wiring hole and is sealed by glue filling at a hole gap of the wiring hole.
8. The wide-range high-precision dissolved carbon dioxide sensor for aquaculture according to claim 7, wherein the probe fixing part (5) is provided with an isolation groove on the side surface, a sealing ring is arranged in the isolation groove, and the gas measuring part is isolated from the control part by placing the sealing ring in the isolation groove.
9. The wide-range high-precision dissolved carbon dioxide sensor for aquaculture according to claim 1, wherein a front end cover (10) and a rear end cover (11) are respectively arranged at the front side and the rear side of the cabin body (1), a groove is formed in the front end cover (10), and the degassing membrane (2) is fixed in the groove of the front end cover (10) through a screw and a gland; the carbon dioxide probe and the temperature, humidity and pressure probe (8) and the probe fixing piece (5) are embedded into the rear end of the front end cover (10); the control circuit (9) is located between the probe fixing piece (5) and the rear end cover (11).
10. The wide-range high-precision dissolved carbon dioxide sensor for aquaculture according to claim 2, wherein the protective cover (4) is provided with fixing holes, and is fixed on the outside of the front end cover (10) through screws, so that different apertures can be flexibly removed or replaced according to practical application requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320107140.3U CN220231688U (en) | 2023-02-03 | 2023-02-03 | Large-range high-precision dissolved carbon dioxide sensor for aquaculture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320107140.3U CN220231688U (en) | 2023-02-03 | 2023-02-03 | Large-range high-precision dissolved carbon dioxide sensor for aquaculture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220231688U true CN220231688U (en) | 2023-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320107140.3U Active CN220231688U (en) | 2023-02-03 | 2023-02-03 | Large-range high-precision dissolved carbon dioxide sensor for aquaculture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220231688U (en) |
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2023
- 2023-02-03 CN CN202320107140.3U patent/CN220231688U/en active Active
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