CN112304710B - Outdoor monitoring station for water quality - Google Patents
Outdoor monitoring station for water quality Download PDFInfo
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- CN112304710B CN112304710B CN202011197222.9A CN202011197222A CN112304710B CN 112304710 B CN112304710 B CN 112304710B CN 202011197222 A CN202011197222 A CN 202011197222A CN 112304710 B CN112304710 B CN 112304710B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
- G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
- G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
- G01N2001/205—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping using a valve
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- Hydrology & Water Resources (AREA)
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- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Sampling And Sample Adjustment (AREA)
Abstract
An outdoor water quality monitoring station comprising: the pipe hoop sleeve I is fixedly sleeved on the outer peripheral surface of the part, close to one end of the flow dividing pipe, of the annular columnar joint, a pipe hoop sleeve II is fixedly sleeved on the outer peripheral surface of the part, close to one end of the annular columnar joint, of the flow dividing pipe, the pipe hoop sleeve I is in contact with the pipe hoop sleeve II, in addition, sealing equipment is assembled between the pipe hoop sleeve I and the pipe hoop sleeve II, and the pipe hoop sleeve I and the pipe hoop sleeve II are connected through two pairs of connecting equipment which are arranged at equal intervals. Effectively avoided among the prior art outdoor water quality monitoring sampling device's the hoop columnar joint that links to each other and the ferrule of shunt tubes leakproofness just not enough under the striking of the water sample of high pressure often makes the defect that the water sample oozes.
Description
Technical Field
The invention relates to the technical field of water quality monitoring, in particular to an outdoor water quality monitoring station.
Background
The water quality monitoring is a process for monitoring and measuring the types of pollutants in the water body, the concentrations and the variation trends of various pollutants and evaluating the water quality condition. The monitoring range is very wide, including natural water (rivers, lakes, seas and underground water) which is not polluted and is polluted, various industrial drainage and the like. The main monitoring projects can be divided into two main categories: one is a comprehensive index reflecting the water quality conditions, such as temperature, chroma, turbidity, pH value, conductivity, suspended matters, dissolved oxygen, chemical oxygen demand, biochemical oxygen demand and the like; the other is some toxic substances, such as phenol, cyanogen, arsenic, lead, chromium, cadmium, mercury, organic pesticides and the like. In order to objectively evaluate the water quality of rivers and oceans, it is sometimes necessary to measure the flow velocity and flow rate in addition to the above-mentioned monitoring items.
The water quality sampling is an essential step in water quality monitoring, the water quality monitoring usually needs to be carried out outdoors or in a long distance field for sampling, then the sample is brought back to a laboratory for experiment and fine analysis, in the sample carrying process, the environment of the sample is greatly different from the original sampling environment, and the sample is allowed to stand for a long time and carried, so that the precipitation and the like occur in the sample, the water quality of the sample is changed, the experiment monitoring and analysis are not accurate enough, and the water quality monitoring result is influenced.
Disclosure of Invention
In order to solve the problems, the invention provides an outdoor water quality monitoring station, which effectively overcomes the defect that the water sample is often oozed due to the insufficient sealing property of a connecting annular columnar connector of an outdoor water quality monitoring and sampling device and a pipe hoop of a shunt pipe under the impact of the high-pressure water sample in the prior art.
In order to overcome the defects in the prior art, the invention provides a solution for an outdoor water quality monitoring station, which comprises the following specific steps:
an outdoor water quality monitoring station comprising:
the outdoor water quality monitoring and sampling device comprises a bottle body of the outdoor water quality monitoring and sampling device and a shunt pipe communicated with the bottle body;
the structure that the shunt tubes are communicated with the bottle body is as follows: the bottle body is integrally connected with an annular columnar connector communicated with the inside of the bottle body, and the annular columnar connector is connected with the flow dividing pipe through a pipe hoop device;
specifically, the structure that the shunt tubes are communicated with the bottle body comprises: the annular columnar connector 2 and the shunt tube 3 positioned on one side of the annular columnar connector 2 are connected, a first pipe hoop sleeve 4 is fixedly sleeved on the outer peripheral surface of the position, close to the shunt tube 3, of the annular columnar connector 2, a second pipe hoop sleeve 5 is fixedly sleeved on the outer peripheral surface of the position, close to the position, of one end of the annular columnar connector 2, of the shunt tube 3, the first pipe hoop sleeve 4 is in contact with the second pipe hoop sleeve 5, in addition, a sealing device 6 is assembled between the first pipe hoop sleeve 4 and the second pipe hoop sleeve 5, and the first pipe hoop sleeve 4 is connected with the second pipe hoop sleeve 5 through two pairs of connecting devices 7 which are arranged at equal intervals.
Further, the sealing device 6 is provided with a first connecting port 62, a first connecting ring 63, a second connecting port 64, a second connecting ring 65, a first sealing ring 66 and a second sealing ring 67, wherein the first connecting port 62 is arranged on the side wall of the first pipe hoop 4 close to the second pipe hoop 5, in addition, the first connecting port 62 is of a ring-shaped framework, the first connecting ring 63 is embedded in the first connecting port 62, and one end of the inner bottom wall of the first connecting ring 63, which is farther from the first connecting port 62, penetrates through the port of the first connecting port 62 and extends outwards and is fixedly connected with the second pipe hoop 5.
Furthermore, the second coupling port 64 is arranged on the side wall of the first coupling ring 63, which is farther from the second pipe hoop sleeve 5, in addition, the second coupling port 64 is of a ring-shaped framework, the second coupling ring 65 is embedded in the second coupling port 64, and one end of the inner bottom of the second coupling ring 65, which is farther from the second coupling port 64, penetrates through the port of the second coupling port 64 and extends outwards and is fixedly connected with the inner bottom wall of the first coupling port 62.
Furthermore, the first closing ring 66 is fixedly connected to the inner wall of the first connecting port 62, in addition, the first closing ring 66 is in contact with the first connecting ring 63, the second closing ring 67 is fixedly connected to the inner wall of the second connecting port 64, in addition, the second closing ring 67 is in contact with the second connecting ring 65, when a water sample with high pressure exists between the columnar joint 2 and the shunt pipe 3, the first connecting ring 63 is combined with the first closing ring to perform primary sealing and synchronization, the second connecting ring 65 is combined with the second closing ring 67 to perform secondary sealing and double-stage sealing, and the columnar joint and the shunt pipe are connected better in sealing performance.
Further, the coupling device 7 includes a pair of screw holes 72 and a screw rod 73, the pair of screw holes 72 are disposed on the corresponding first pipe hoop 4 and the second pipe hoop 5, and the screw rod 73 is screwed between the pair of screw holes 72 on the same line for connecting the first pipe hoop 4 and the second pipe hoop 5.
Furthermore, the side walls of the outer pipe hoop II 5 of the two pairs of connecting devices 7 are provided with embedding ports 8 in a mirror image mode, embedding columns 9 are embedded in the embedding ports 8, and one end, farther away from the inner bottom wall of the embedding ports 8, of each embedding column 9 penetrates through the port of the embedding port 8 and extends outwards, and is fixedly connected with the pipe hoop I4.
Further, one end of the screw 73 is connected to a handle.
Furthermore, a nut 10 is screwed on the peripheral wall of the end of the screw rod 73 farther from the handle.
Furthermore, the first pipe hoop sleeve 4, the second pipe hoop sleeve 5, the first connecting ring 63 and the second connecting ring 65 are all plated with zinc layers.
The invention has the beneficial effects that:
when a water sample with high pressure is introduced between the annular columnar joint 2 and the flow dividing pipe 3, the first connecting ring 63 is combined with the first sealing ring to perform primary sealing and synchronization initially, the second connecting ring 65 is combined with the second sealing ring 67 to perform secondary sealing and double-stage sealing, and the annular columnar joint and the flow dividing pipe are connected to have better sealing performance. The defect that the water sample is often oozed due to insufficient closure of the connecting annular columnar connector and the pipe hoop of the shunt pipe under the impact of the high-pressure water sample in the prior art is effectively overcome.
Drawings
FIG. 1 is a schematic view of a pipe clamp apparatus of the present invention.
Fig. 2 is a schematic view at X of fig. 1.
Fig. 3 is a schematic view at Y of fig. 1.
Detailed Description
The invention will be further described with reference to the following figures and examples.
Example 1:
as shown in fig. 1-3, the outdoor water quality monitoring station comprises: the outdoor water quality monitoring and sampling device comprises a fixed base and a sampling bottle arranged on the fixed base, wherein the sampling bottle comprises a bottle body, a bottle opening and a bottle cover, the bottle body and the bottle opening are of the outdoor water quality monitoring and sampling device, the bottle body is provided with a flow dividing device, a rotating shaft facing the interior of the bottle body penetrates through the center of the bottle cover, a stirring rod is fixedly arranged on the rotating shaft, the end, far away from the bottle opening, of the rotating shaft is connected with a motor, the flow dividing device comprises a flow dividing pipe communicated with the bottle body, and the flow dividing pipe is connected with at least two flow dividing branch pipes with the same diameter; the motor is connected with a battery and is fixed with the bottle cap. The bottle cap is characterized in that a limiting ring matched with the bottle opening is arranged on the inner side face of the bottle cap, the limiting ring is arranged in the bottle opening, and air holes are formed in the bottle cap. The bottom of the bottle body is provided with supporting legs, and a supporting leg fixing groove matched with the supporting legs is formed in the fixing base. And a water valve is arranged on the shunt pipe. Such outdoor water quality monitoring sampling device, simple structure can stir and keep aerobic environment in the quality of water sample carries, avoids appearing sediment or anaerobic environment in the sample water, and the maximum possible makes sample quality of water keep with former sample environment in quality of water unanimous, guarantees quality of water monitoring's objectivity and accuracy. The structure that the shunt tubes are communicated with the bottle body is as follows: the bottle body is integrally connected with an annular columnar connector communicated with the inside of the bottle body, and the annular columnar connector is connected with the flow dividing pipe through a pipe hoop device; specifically, the structure that the shunt tubes are communicated with the bottle body comprises: the annular columnar connector 2 and the shunt tube 3 positioned on one side of the annular columnar connector 2 are connected, a first pipe hoop sleeve 4 is fixedly sleeved on the outer peripheral surface of the position, close to the shunt tube 3, of the annular columnar connector 2, a second pipe hoop sleeve 5 is fixedly sleeved on the outer peripheral surface of the position, close to the position, of one end of the annular columnar connector 2, of the shunt tube 3, the first pipe hoop sleeve 4 is in contact with the second pipe hoop sleeve 5, in addition, a sealing device 6 is assembled between the first pipe hoop sleeve 4 and the second pipe hoop sleeve 5, and the first pipe hoop sleeve 4 is connected with the second pipe hoop sleeve 5 through two pairs of connecting devices 7 which are arranged at equal intervals. The sealing device 6 is provided with a first connecting port 62, a first connecting ring 63, a second connecting port 64, a second connecting ring 65, a first sealing ring 66 and a second sealing ring 67, wherein the first connecting port 62 is arranged on the side wall of the first pipe hoop sleeve 4 close to the second pipe hoop sleeve 5, in addition, the first connecting port 62 is of a ring-shaped structure, the first connecting ring 63 is embedded in the first connecting port 62, and one end of the inner bottom wall of the first connecting ring 63, which is farther away from the first connecting port 62, penetrates through the port of the first connecting port 62 and extends outwards, and is fixedly connected with the second pipe hoop sleeve 5. The second coupling port 64 is arranged on the side wall of the first coupling ring 63, which is farther from the second pipe hoop sleeve 5, in addition, the second coupling port 64 is of a ring-shaped framework, the second coupling ring 65 is embedded in the second coupling port 64, and one end of the inner bottom of the second coupling ring 65, which is farther from the second coupling port 64, penetrates through the port of the second coupling port 64 and extends outwards and is fixedly connected with the inner bottom wall of the first coupling port 62. The first seal ring 66 is fixedly connected to the inner bottom wall of the first coupling port 62, in addition, the first seal ring 66 is in contact with the first coupling ring 63, the second seal ring 67 is fixedly connected to the inner bottom wall of the second coupling port 64, in addition, the second seal ring 67 is in contact with the second coupling ring 65, when a water sample with high pressure is located between the columnar joint 2 and the shunt tube 3, the first seal ring 63 is combined with the first seal ring to execute the first-stage seal, the connection ring two 65 is combined with the second seal ring 67 to act, the second-stage seal is executed, the two-stage seal is realized, and the columnar joint is better in seal performance with the shunt tube.
Example 2:
as shown in fig. 1-3, the outdoor water quality monitoring station comprises:
the outdoor water quality monitoring and sampling device comprises a fixed base and a sampling bottle arranged on the fixed base, wherein the sampling bottle comprises a bottle body, a bottle opening and a bottle cover, the bottle body and the bottle opening are of the outdoor water quality monitoring and sampling device, the bottle body is provided with a flow dividing device, a rotating shaft facing the interior of the bottle body penetrates through the center of the bottle cover, a stirring rod is fixedly arranged on the rotating shaft, the end, far away from the bottle opening, of the rotating shaft is connected with a motor, the flow dividing device comprises a flow dividing pipe communicated with the bottle body, and the flow dividing pipe is connected with at least two flow dividing branch pipes with the same diameter;
the motor is connected with a battery and is fixed with the bottle cap.
The bottle cap is characterized in that a limiting ring matched with the bottle opening is arranged on the inner side face of the bottle cap, the limiting ring is arranged in the bottle opening, and air holes are formed in the bottle cap.
The bottom of the bottle body is provided with supporting legs, and a supporting leg fixing groove matched with the supporting legs is formed in the fixing base.
And a water valve is arranged on the shunt pipe.
Such outdoor water quality monitoring sampling device, simple structure can stir and keep aerobic environment in the quality of water sample carries, avoids appearing sediment or anaerobic environment in the sample water, and the maximum possible makes sample quality of water keep with former sample environment in quality of water unanimous, guarantees quality of water monitoring's objectivity and accuracy.
The structure that the shunt tubes are communicated with the bottle body is as follows: the bottle body is integrally connected with an annular columnar connector communicated with the inside of the bottle body, and the annular columnar connector is connected with the flow dividing pipe through a pipe hoop device;
specifically, the structure that the shunt tubes are communicated with the bottle body comprises: the annular columnar connector 2 and the shunt tube 3 positioned on one side of the annular columnar connector 2 are connected, a first pipe hoop sleeve 4 is fixedly sleeved on the outer peripheral surface of the position, close to the shunt tube 3, of the annular columnar connector 2, a second pipe hoop sleeve 5 is fixedly sleeved on the outer peripheral surface of the position, close to the position, of one end of the annular columnar connector 2, of the shunt tube 3, the first pipe hoop sleeve 4 is in contact with the second pipe hoop sleeve 5, in addition, a sealing device 6 is assembled between the first pipe hoop sleeve 4 and the second pipe hoop sleeve 5, and the first pipe hoop sleeve 4 is connected with the second pipe hoop sleeve 5 through two pairs of connecting devices 7 which are arranged at equal intervals.
The sealing device 6 is provided with a first connecting port 62, a first connecting ring 63, a second connecting port 64, a second connecting ring 65, a first sealing ring 66 and a second sealing ring 67, wherein the first connecting port 62 is arranged on the side wall of the first pipe hoop sleeve 4 close to the second pipe hoop sleeve 5, in addition, the first connecting port 62 is of a ring-shaped framework, the first connecting ring 63 is embedded in the first connecting port 62, and one end of the inner bottom wall of the first connecting ring 63, which is farther away from the first connecting port 62, penetrates through the port of the first connecting port 62 and extends outwards and is fixedly connected with the second pipe hoop sleeve 5.
The second coupling port 64 is arranged on the side wall of the first coupling ring 63, which is farther from the second pipe hoop sleeve 5, in addition, the second coupling port 64 is of a ring-shaped framework, the second coupling ring 65 is embedded in the second coupling port 64, and one end of the inner bottom of the second coupling ring 65, which is farther from the second coupling port 64, penetrates through the port of the second coupling port 64 and extends outwards and is fixedly connected with the inner bottom wall of the first coupling port 62.
The first seal ring 66 is fixedly connected to the inner bottom wall of the first coupling port 62, in addition, the first seal ring 66 is in contact with the first coupling ring 63, the second seal ring 67 is fixedly connected to the inner bottom wall of the second coupling port 64, in addition, the second seal ring 67 is in contact with the second coupling ring 65, when a water sample with high pressure is located between the columnar joint 2 and the shunt tube 3, the first seal ring 63 is combined with the first seal ring to execute the first-stage seal, the connection ring two 65 is combined with the second seal ring 67 to act, the second-stage seal is executed, the two-stage seal is realized, and the columnar joint is better in seal performance with the shunt tube.
The connecting device 7 comprises a pair of screw openings 72 and a screw rod 73, the pair of screw openings 72 is arranged on the corresponding first pipe hoop sleeve 4 and the second pipe hoop sleeve 5, and the screw rod 73 is screwed between the pair of screw openings 72 on the same line and is used for connecting the first pipe hoop sleeve 4 with the second pipe hoop sleeve 5.
The edge walls of the two outer pipe hoop sleeves 5 of the two pairs of connecting devices 7 are provided with embedding ports 8 in a mirror image mode, embedding columns 9 are embedded in the embedding ports 8, one ends, farther away from the inner bottom walls of the embedding ports 8, of the embedding columns 9 penetrate through the ports of the embedding ports 8 and extend outwards, and the embedding columns are fixedly connected with the pipe hoop sleeves 4 to facilitate overlapping of a pair of screw ports 72 on the same line.
One end of the screw rod 73 is connected with a handle, so that the screw rod 73 can rotate conveniently.
The screw nut 10 is screwed on the peripheral wall of the position where the end of the screw rod 73 farther away from the handle, so that the screw rod 73 is connected more stably.
The first pipe hoop sleeve 4, the second pipe hoop sleeve 5, the first connecting ring 63 and the second connecting ring 65 are all plated with zinc layers, and the problem that the first pipe hoop sleeve 4, the second pipe hoop sleeve 5, the first connecting ring 63 and the second connecting ring 65 are eroded is solved.
In the invention, when a water sample with high pressure exists between the annular columnar joint 2 and the flow dividing pipe 3, the first connecting ring 63 is combined with the first sealing ring initially to execute first-stage sealing and synchronization, and the second connecting ring 65 is combined with the second sealing ring 67 to execute second-stage sealing and double-stage sealing, so that the sealing performance of the annular columnar joint and the flow dividing pipe is better.
The present invention has been described in an illustrative manner by the embodiments, and it should be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above, but is capable of various changes, modifications and substitutions without departing from the scope of the present invention.
Claims (3)
1. An outdoor monitoring station of quality of water, its characterized in that includes:
the outdoor water quality monitoring and sampling device comprises a bottle body of the outdoor water quality monitoring and sampling device and a shunt pipe communicated with the bottle body; the structure that the shunt tubes are communicated with the bottle body is as follows: the bottle body is integrally connected with an annular columnar connector communicated with the inside of the bottle body, and the annular columnar connector is connected with the flow dividing pipe through a pipe hoop device;
specifically, the structure that the shunt tubes are communicated with the bottle body comprises: the annular columnar connector and the flow dividing pipe are positioned on one side of the annular columnar connector, a first pipe hoop sleeve is fixedly sleeved on the outer peripheral surface of the position of the annular columnar connector close to one end of the flow dividing pipe, a second pipe hoop sleeve is fixedly sleeved on the outer peripheral surface of the position of the flow dividing pipe close to one end of the annular columnar connector, the first pipe hoop sleeve is contacted with the second pipe hoop sleeve, in addition, sealing equipment is assembled between the first pipe hoop sleeve and the second pipe hoop sleeve, the first pipe hoop sleeve and the second pipe hoop sleeve are connected through two pairs of connecting equipment which are arranged at equal intervals,
the sealing device is provided with a first connecting port, a first connecting ring, a second connecting port, a second connecting ring, a first sealing ring and a second sealing ring, wherein the first connecting port is arranged on the side wall of the first pipe hoop sleeve close to the second pipe hoop sleeve, in addition, the first connecting port is of a ring-shaped framework, the first connecting ring is embedded in the first connecting port, one end of the inner bottom wall of the first connecting ring farther away from the first connecting port penetrates through the port of the first connecting port and extends outwards, and is fixedly connected with the second pipe hoop sleeve,
the second coupling port is arranged on the side wall of the first coupling ring farther from the second coupling port, in addition, the second coupling port is of a ring-shaped structure, the second coupling ring is embedded in the second coupling port, one end of the inner bottom of the mouth of the second coupling ring farther from the second coupling port penetrates through the port of the second coupling port and extends outwards, and is fixedly connected with the inner bottom wall of the first coupling port,
the first sealing ring is fixedly connected to the inner bottom wall of the first connecting port, the first sealing ring is in contact with the first connecting ring, the second sealing ring is fixedly connected to the inner bottom wall of the second connecting port, the second sealing ring is in contact with the second connecting ring, when a water sample with high pressure passes through the space between the columnar connector and the shunt pipe, the first connecting ring is combined with the first sealing ring to perform first-stage sealing and synchronization, the second connecting ring is combined with the second sealing ring 67 to perform second-stage sealing and two-stage sealing,
the connecting device comprises a pair of screw openings and a screw rod, the screw openings are arranged on the corresponding first pipe hoop sleeve and the corresponding second pipe hoop sleeve, and the screw rod is screwed between the screw openings on the same line and is used for connecting the first pipe hoop sleeve and the second pipe hoop sleeve.
2. The outdoor water quality monitoring station according to claim 1, wherein the edge walls of the outer pipe hoops of the two pairs of connecting devices are provided with embedded interfaces in a mirror image mode, embedded columns are embedded in the embedded interfaces, and the ends, which are farther away from the inner bottom walls of the embedded interfaces, of the embedded columns penetrate through the ports of the embedded interfaces and extend outwards and are further fixedly connected with the pipe hoops.
3. The outdoor water quality monitoring station according to claim 1, wherein the first pipe hoop sleeve, the second pipe hoop sleeve, the first coupling ring and the second coupling ring are all plated with zinc layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011197222.9A CN112304710B (en) | 2020-10-31 | 2020-10-31 | Outdoor monitoring station for water quality |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011197222.9A CN112304710B (en) | 2020-10-31 | 2020-10-31 | Outdoor monitoring station for water quality |
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| CN112304710A CN112304710A (en) | 2021-02-02 |
| CN112304710B true CN112304710B (en) | 2022-12-06 |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB688526A (en) * | 1951-08-17 | 1953-03-11 | Dowty Equipment Ltd | Improvements relating to closures for fluid pressure cylinders |
| FR2826705B1 (en) * | 2001-07-02 | 2004-08-06 | Geci | RECOVERABLE FITTING ADAPTABLE TO THE END OF A FITTED FLEXIBLE PIPE |
| CN106134415B (en) * | 2012-06-18 | 2014-10-22 | 上海空间推进研究所 | A kind of plunger type pipeline double containment joint for 35MPa pressure duct |
| CN205842052U (en) * | 2016-06-28 | 2016-12-28 | 荆州市恒鑫塑料管材有限公司 | A kind of natural gas pipe joint |
| CN206459862U (en) * | 2016-12-26 | 2017-09-01 | 安徽精怡科学仪器科技有限公司 | A kind of outdoor water quality monitoring sampler |
| CN109531968B (en) * | 2018-10-26 | 2020-09-15 | 海安亚鼎机电制造有限公司 | Construction mode of escalator handrail |
| CN209218821U (en) * | 2018-11-29 | 2019-08-09 | 西安美之旅信息技术有限公司 | The water injector component of artificial intelligence |
| CN210311639U (en) * | 2019-07-09 | 2020-04-14 | 江西绿满源食品有限公司 | Anti-oxidation edible oil barrel |
| CN111520096B (en) * | 2020-04-30 | 2021-03-02 | 中国水电基础局有限公司 | Orifice closing device |
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2020
- 2020-10-31 CN CN202011197222.9A patent/CN112304710B/en active Active
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