CN112146933A - Water body detection sampler - Google Patents
Water body detection sampler Download PDFInfo
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- CN112146933A CN112146933A CN202011019865.4A CN202011019865A CN112146933A CN 112146933 A CN112146933 A CN 112146933A CN 202011019865 A CN202011019865 A CN 202011019865A CN 112146933 A CN112146933 A CN 112146933A
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- groove
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- shell
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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
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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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
- G01N2001/1031—Sampling from special places
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a water body detection sampler, which comprises a shell, wherein a supporting plate is fixedly arranged at the upper end of the shell, a hydraulic cylinder is fixedly arranged at the upper end of the supporting plate, a sliding rod capable of moving back and forth is fixedly arranged at the output end of the hydraulic cylinder, a plurality of pushing inclined blocks are uniformly and fixedly arranged on the sliding rod along the length direction, a plurality of water taking devices are arranged on the shell along the length direction, a moving groove is arranged at the top of the shell, the sliding rod is positioned in the moving groove, and when the hydraulic cylinder is started to push the sliding rod to move downwards, each pushing inclined block can push the water taking devices to extract water bodies with different heights.
Description
Technical Field
The invention belongs to the field of water body detection, and particularly relates to a water body detection sampler.
Background
The water quality detection 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, and the monitoring range comprises uncontaminated and contaminated natural water (rivers, lakes, seas and underground water), 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.
Water quality testing needs to get water at different heights, and the prior art lacks the device of simultaneously getting water to different heights to it is loaded down with trivial details to lead to the testing process.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the water body detection sampler which can sample at different heights at the same time.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a water detects sampler, includes the casing, the fixed backup pad that is provided with in upper end of casing, the fixed pneumatic cylinder that is provided with in upper end of backup pad, but the fixed slide bar that is provided with a reciprocating motion of output of pneumatic cylinder, it is provided with a plurality of sloping blocks that push away to evenly fix along length direction on the slide bar, be provided with a plurality of water intake devices along length direction on the casing, the casing top is provided with a shifting chute, the slide bar is located the shifting chute, and when the pneumatic cylinder started to promote the slide bar and move down, every pushed away the sloping block and can promote the water intake device and draw the water of co-altitude not.
The water intaking device is including setting up the work groove that is linked together in the casing and with the shifting chute inner wall, but be provided with one in the work inslot reciprocating motion and move the piece, it is close to the fixed first cooperation sloping block that is provided with of one end that pushes away a sloping block to move the piece, but be provided with reciprocating motion's second cooperation sloping block in the work groove, be provided with a intake chamber that lies in the work groove downside on the casing, be linked together through the spread groove between intake chamber and the work groove, but be provided with a bracer in the spread groove reciprocating motion, the fixed second cooperation sloping block that is located the work inslot that is provided with in bracer upper end, the fixed piston that is located the intake chamber that is provided with of bracer lower extreme, be provided with a round hole groove on the intake chamber lateral wall, the fixed first check valve that is provided with on the round hole groove.
The side wall of the rear portion of the working groove is provided with a trapezoidal groove, a trapezoidal block located in the trapezoidal groove is fixedly arranged at the rear end of the moving block, a groove is formed in one end, away from the pushing inclined block, of the moving block, a limiting block is fixedly arranged at one end, close to the groove, of the second matching inclined block, and the limiting block is located in the groove.
The water body detection sampler also comprises a waterweed removing device, the waterweed removing device comprises a water inlet shell fixedly arranged at the front end of the shell, an arc-shaped groove is arranged in the water inlet shell, the front end of the shell is rotatably provided with a rotating shaft, the rotating shaft is fixedly sleeved with a cylindrical hollow shell, the outer surface of the cylindrical hollow shell is fixedly provided with a rotating block, the outer surface of the cylindrical hollow shell is fixedly provided with a first blade, the front end surface of the shell is fixedly provided with a second blade, one side wall of the cylindrical hollow shell close to the rotating block is provided with a water inlet, one side wall of the cylindrical hollow shell far away from the water inlet is provided with a water outlet, the water outlet is fixedly provided with a second one-way valve, the outer surface of the cylindrical hollow shell is fixedly provided with a sealing ring, and the inner wall of the arc-shaped, the feed liquor downthehole fixed third check valve that is provided with, the cover is equipped with a torsional spring on the rotation axis, the fixed preceding terminal surface that sets up the casing again of one end of torsional spring, the other end is fixed to be set up on the rotation axis.
The pasture and water device still includes the cooperation casing of terminal surface before the casing, cooperation casing right-hand member face is provided with the rectangular channel, but be provided with a rectangular block reciprocating motion in the rectangular channel, the fixed rectangular rubber piece that is provided with in rectangular block left end, the stopper is close to the fixed sealing piston piece that is provided with of one end of recess bottom, be connected through extrusion spring between sealing piston piece and the recess bottom, the fixed setting in recess bottom of one end of extrusion spring, the fixed setting in one end terminal surface that is close to the recess bottom of sealing piston piece of the other end.
The groove side wall is provided with a first vent pipe, the left side wall of the working groove is provided with a second vent pipe, a flexible pipe is arranged between the first vent pipe and the second vent pipe, one end of the flexible pipe is fixedly arranged on the first vent pipe, and the other end of the flexible pipe is fixedly arranged on the second vent pipe.
In summary, the invention has the following advantages: this product simple structure can take a sample at the co-altitude in aqueous to can be convenient for detect the water, improve operator's work efficiency.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a sectional view taken along line a-a in fig. 1.
Fig. 3 is an enlarged view of fig. 2 at B.
Fig. 4 is an enlarged view of fig. 3 at C.
Fig. 5 is an enlarged view of fig. 1 at D.
Fig. 6 is a schematic structural view of the aquatic weed device.
Fig. 7 is a schematic view of the internal structure of the mating housing.
Fig. 8 is a position diagram of the water inlet and the water outlet.
In the figure, a shell 1, a support plate 2, a hydraulic cylinder 3, a sliding rod 4, a pushing inclined block 5, a moving block 50, a first matching inclined block 51, a second matching inclined block 60, a water inlet groove 52, a supporting block 53, a third matching inclined block 54, a piston 55, a first one-way valve 56, a water inlet shell 200, a cylindrical hollow shell 201, a rotating block 202, a first blade 203, a second blade 204, a water inlet 588, a water outlet 589, a sealing ring 667, a third one-way valve 555, a matching shell 300, a rectangular block 301, a rectangular rubber block 302, a sealing piston block 303, a first vent pipe 304, a second vent pipe 305 and a flexible pipe 306 are arranged.
Detailed Description
As shown in fig. 1-8, a water body detection sampler, including casing 1, the fixed backup pad 2 that is provided with in upper end of casing 1, the fixed pneumatic cylinder 3 that is provided with in upper end of backup pad 2, the fixed slide bar 4 that is provided with a reciprocating motion of output of pneumatic cylinder 3, it is provided with a plurality of sloping blocks 5 that push away to evenly fix along length direction on the slide bar 4, be provided with a plurality of water intaking devices along length direction on the casing 1, the casing top is provided with a shifting chute, slide bar 4 is located the shifting chute, and when pneumatic cylinder 3 started to promote slide bar 4 and remove downwards, every inclined block 5 that pushes away all can promote the water intaking device and draw the water of co-altitude.
The water intaking device is including setting up the work groove that is linked together in casing 1 and with the shifting chute inner wall, but work inslot reciprocating motion ground is provided with one and moves piece 50, it is close to the fixed first cooperation sloping block 51 that is provided with of one end that pushes away a sloping block 5 to move piece 50, but be provided with reciprocating motion's second cooperation sloping block 60 in the work groove, be provided with a intake chamber 52 that is located the work groove downside on the casing 1, be linked together through the spread groove between intake chamber and the work groove, but be provided with a kicking block 53 in the spread groove reciprocating motion ground, kicking block 53 upper end is fixed to be provided with a third cooperation sloping block 54 that is located the work groove, kicking block 53 lower extreme is fixed to be provided with a piston 55 that is located the intake chamber, be provided with a round hole groove on the intake chamber lateral wall, the last fixed first check valve 56 that is provided with of round hole groove.
The rear side wall of the working groove is provided with a trapezoidal groove, the rear end of the moving block 50 is fixedly provided with a trapezoidal block located in the trapezoidal groove, one end, far away from the pushing inclined block 5, of the moving block 50 is provided with a groove, one end, close to the groove, of the second matching inclined block 60 is fixedly provided with a limiting block 77, and the limiting block 77 is located in the groove.
Putting the water body detection sampler into water, then starting a hydraulic cylinder, wherein the hydraulic cylinder can push a sliding rod 4 to move downwards, a first matching inclined block 51 can be pushed to move leftwards through a pushing inclined block 5 on the sliding rod 4, the first matching inclined block 51 can drive a third matching inclined block 54 to move upwards through a second matching inclined block 60, the third matching inclined block 54 can drive a piston 55 to move upwards, the space in a water inlet tank can be increased after the piston 55 moves upwards, the air pressure is reduced, at the moment, external water can enter the water inlet tank through a first one-way valve 56, and different heights in the water can be sampled through a plurality of water taking devices with different heights, so that the time required by sampling can be shortened, and the water body detection is more convenient and faster; the setting through first check valve can be when upwards carrying out the water through co-altitude from the aquatic with this product after the sample, can not let water get into in the intake chamber and the water sample of co-altitude not make the detection inaccurate.
The water body detection sampler further comprises a float grass removing device, the float grass removing device comprises a water inlet shell 200 fixedly arranged at the front end of the shell 1, an arc-shaped groove is arranged in the water inlet shell 200, the front end of the shell 1 is rotatably provided with a rotating shaft, a cylindrical hollow shell 201 is fixedly sleeved on the rotating shaft, a rotating block 202 is fixedly arranged on the outer surface of the cylindrical hollow shell 201, a first blade 203 is fixedly arranged on the outer surface of the cylindrical hollow shell 201, a second blade 204 is fixedly arranged on the front end surface of the shell 1, a water inlet 588 is arranged on one side wall of the cylindrical hollow shell 201 close to the rotating block 202, a water outlet 589 is arranged on one side wall of the cylindrical hollow shell 201 far away from the water inlet 588, a second one-way valve is fixedly arranged on the water outlet 589, a sealing ring 667 is fixedly arranged on the outer surface of the cylindrical hollow shell 201, a liquid inlet hole is formed in the inner wall of the arc-shaped groove, and a third one-way valve 555 is fixedly arranged in the liquid inlet hole.
The pasture and water device still includes the cooperation casing 300 of terminal surface before the casing 1, cooperation casing 300 right-hand member face is provided with the rectangular channel, but be provided with a rectangular block 301 in the rectangular channel reciprocating motion ground, the fixed rectangular rubber piece 302 that is provided with in rectangular block 301 left end, stopper 77 is close to the fixed sealing piston piece 303 that is provided with of one end of recess bottom, be connected through extrusion spring between sealing piston piece 303 and the recess bottom, extrusion spring's one end is fixed to be set up in the recess bottom, and the other end is fixed to be set up on the one end terminal surface that sealing piston piece 303 is close to the recess bottom.
The groove side wall is provided with a first vent pipe 304, the left side wall of the working groove is provided with a second vent pipe 305, a flexible pipe 306 is arranged between the first vent pipe 304 and the second vent pipe 305, one end of the flexible pipe 306 is fixedly arranged on the first vent pipe 304, and the other end of the flexible pipe 306 is fixedly arranged on the second vent pipe 305.
When the underwater aquatic weeds are too much, the aquatic weeds are sucked to block the circular hole groove when the water taking device absorbs water, so that the circular hole groove can not enter water, at the moment, the third matching sloping block 54 cannot be pushed upwards by the second matching sloping block 60 because the air pressure in the working groove is greater than the atmospheric pressure in the water inlet groove, so that the extrusion spring can be contracted, the space in the groove is reduced, the air pressure is increased, the air pressure in the working groove communicated with the groove is also increased, the air pressure pushes the rectangular block 301 to approach the first blade 203, the knife edge of the first blade 203 is attached to the knife edge of the second blade, so that the aquatic weeds can be cut, meanwhile, the first blade 203 can drive the rotating block 202 to rotate upwards, the air pressure in the space below the rotating block 202 is increased, water can be sucked, and after the aquatic weeds are cut, the hydraulic cylinder can reset, so that the second matching sloping block 60 is separated from the third matching sloping block 54, the third matching inclined block 54 pushes the third matching inclined block 54 downwards under the air pressure of the working tank, so that the air pressure in the water inlet tank is the same as the external atmospheric pressure, thereby the round hole groove loses the suction force to the residual aquatic weeds, meanwhile, the rotating shaft is reset under the action of the torsional spring, the rotating shaft drives the rotating block 202 to reset through the cylindrical hollow shell 201, the rotating block 202 resets downwards to extrude the water at the bottom of the arc-shaped groove to enter the cylindrical hollow shell 201 through the water inlet 588, then the water is ejected from the water outlet 589, the cylindrical hollow shell 201 rotates to reset and sprays water into the water outlet 589, the water can be sprayed from the lowest end of the round hole groove to the highest end of the round hole groove, the residual water plants floating around the round hole groove can be pushed aside by the water flow, therefore, the situation that the cut residual water tank is too close to the round hole tank and still sucked by the round hole tank to block the water body sampling when the water is continuously taken next time is avoided; can cut the pasture and water through the setting of first blade and second blade to can be convenient for utilize rivers to push away the pasture and water, avoid the round hole groove to be plugged up by the pasture and water the sample of can't absorbing water always.
An infrared sensor is fixedly arranged at the bottom of each groove and is connected with the air cylinder, and the infrared sensor is in the prior art, so the structure is not repeated; when the infrared inductor senses that the limiting block 77 is close to the bottom of the groove, the circular hole groove is blocked by the float grass, so that water can be taken by starting for the second time after the first time.
All be provided with a manual drain valve on every intake antrum, after this detection sampler intake sample, only need open manual drain valve with the hand, just can discharge water from the intake antrum.
The working principle is as follows: putting the water body detection sampler into water, then starting a hydraulic cylinder, wherein the hydraulic cylinder can push a sliding rod 4 to move downwards, a first matching inclined block 51 can be pushed to move leftwards through a pushing inclined block 5 on the sliding rod 4, the first matching inclined block 51 can drive a third matching inclined block 54 to move upwards through a second matching inclined block 60, the third matching inclined block 54 can drive a piston 55 to move upwards, the space in a water inlet groove can be increased and the air pressure can be reduced after the piston 55 moves upwards, at the moment, external water can enter the water inlet groove through a first one-way valve 56, sampling can be carried out at different heights in the water through a plurality of water taking devices with different heights, when underwater aquatic weeds are too much, the aquatic weeds can be sucked by the water taking devices to block the circular hole groove so as to prevent the circular hole groove from entering water, at the moment, the third matching inclined block 54 cannot be pushed upwards by the second matching inclined block 60 because the air pressure in a working groove is larger than the large air pressure in the water inlet groove, therefore, the extrusion spring contracts to reduce the space in the groove and increase the air pressure, so that the air pressure in the working groove communicated with the groove is increased, the air pressure pushes the rectangular block 301 to approach the first blade 203, the blade of the first blade 203 is attached to the blade of the second blade, so that aquatic weeds can be cut off, meanwhile, the first blade 203 drives the rotating block 202 to rotate upwards, the air pressure in the space on the lower side of the rotating block 202 is increased to reduce, so that water can be sucked, after the aquatic weeds are cut off, the hydraulic cylinder is reset, so that the second matching inclined block 60 is separated from the third matching inclined block 54, the third matching inclined block 54 pushes the third matching inclined block 54 downwards under the air pressure of the working groove, the air pressure in the water inlet groove is the same as the external atmospheric pressure, so that the circular hole groove loses the suction force on the residual aquatic weeds, the rotating shaft is reset under the action of the torsion spring, the rotating shaft drives the rotating block 202 to reset through the cylindrical hollow shell 201, the rotating block 202 resets downwards to extrude water at the bottom of the arc-shaped groove to enter the cylindrical hollow shell 201 through the water inlet 588, then the water is ejected from the water outlet 589, the cylindrical hollow shell 201 rotates to reset and sprays water into the water outlet 589, the water can be ejected from the lowest end of the circular hole groove to the uppermost end of the circular hole groove, and after water plants are cut off and washed away, the hydraulic cylinder is started again to take water.
Claims (6)
1. The utility model provides a water detects sampler, includes casing (1), the fixed backup pad (2) that is provided with in upper end of casing (1), the fixed pneumatic cylinder (3) that is provided with in upper end of backup pad (2), but the fixed slide bar (4) that is provided with a reciprocating motion of output of pneumatic cylinder (3), it is provided with a plurality of sloping blocks (5) that push away to go up along length direction uniform fixation on slide bar (4), be provided with a plurality of water intaking devices along length direction on casing (1), the casing top is provided with a shifting chute, slide bar (4) are located the shifting chute, and when pneumatic cylinder (3) start promotion slide bar (4) move down, every sloping block (5) that pushes away can all promote the water intaking device and draw the water of co-altitude not.
2. The water detection sampler of claim 1, wherein: the water taking device comprises a working groove which is arranged in a shell (1) and communicated with the inner wall of the moving groove, a moving block (50) is arranged in the working groove in a reciprocating manner, one end, close to a pushing-position inclined block (5), of the moving block (50) is fixedly provided with a first matching inclined block (51), a second matching inclined block (60) which is arranged in the working groove in a reciprocating manner is arranged in the working groove, a water inlet groove (52) which is arranged at the lower side of the working groove is arranged on the shell (1), the water inlet groove is communicated with the working groove through a connecting groove, a supporting block (53) is arranged in the connecting groove in a reciprocating manner, a third matching inclined block (54) which is arranged in the working groove is fixedly arranged at the upper end of the supporting block (53), a piston (55) which is arranged in the water inlet groove is fixedly arranged at the lower end of the supporting block (53), and a circular hole groove is arranged on, and a first one-way valve (56) is fixedly arranged on the round hole groove.
3. The water detection sampler of claim 2, wherein: the novel working groove is characterized in that a trapezoidal groove is formed in the rear side wall of the working groove, a trapezoidal block located in the trapezoidal groove is fixedly arranged at the rear end of the moving block (50), a groove is formed in one end, away from the pushing inclined block (5), of the moving block (50), a limiting block (77) is fixedly arranged at one end, close to the groove, of the second matching inclined block (60), and the limiting block (77) is located in the groove.
4. The water detection sampler of claim 1, wherein: the water body detection sampler further comprises a waterweed removing device, the waterweed removing device comprises a water inlet shell (200) fixedly arranged at the front end of the shell (1), an arc-shaped groove is formed in the water inlet shell (200), a rotating shaft is rotatably arranged at the front end of the shell (1), a cylindrical hollow shell (201) is fixedly sleeved on the rotating shaft, a rotating block (202) is fixedly arranged on the outer surface of the cylindrical hollow shell (201), a first blade (203) is fixedly arranged on the outer surface of the cylindrical hollow shell (201), a second blade (204) is fixedly arranged on the front end face of the shell (1), a water inlet (588) is formed in the side wall, close to the rotating block (202), of the cylindrical hollow shell (201), a water outlet (589) is formed in the side wall, far away from the water inlet (588), of the cylindrical hollow shell (201), the fixed second check valve that is provided with on delivery port (589), the external fixed surface of cylinder hollow shell (201) is provided with sealing washer (667), be provided with the feed liquor hole on the arc wall inner wall, the feed liquor internal fixation is provided with third check valve (555), the cover is equipped with a torsional spring on the rotation axis, the fixed preceding terminal surface that sets up casing (1) again of one end of torsional spring, the other end is fixed to be set up on the rotation axis.
5. The water detection sampler of claim 4, wherein: the pasture and water device still includes cooperation casing (300) of terminal surface before casing (1), cooperation casing (300) right-hand member face is provided with the rectangular channel, but be provided with a rectangular block (301) in the rectangular channel reciprocating motion, rectangular block (301) left end is fixed and is provided with a rectangle rubber block (302), stopper (77) are close to the fixed sealed piston piece (303) that is provided with of one end of recess bottom, be connected through the extrusion spring between sealed piston piece (303) and the recess bottom, the fixed setting in recess bottom of one end of extrusion spring, the other end is fixed to be set up on the one end terminal surface that sealed piston piece (303) are close to the recess bottom.
6. The water detection sampler of claim 5, wherein: the groove side wall is provided with a first vent pipe (304), the left side wall of the working groove is provided with a second vent pipe (305), a flexible pipe (306) is arranged between the first vent pipe (304) and the second vent pipe (305), one end of the flexible pipe (306) is fixedly arranged on the first vent pipe (304), and the other end of the flexible pipe is fixedly arranged on the second vent pipe (305).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011019865.4A CN112146933A (en) | 2020-09-25 | 2020-09-25 | Water body detection sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011019865.4A CN112146933A (en) | 2020-09-25 | 2020-09-25 | Water body detection sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112146933A true CN112146933A (en) | 2020-12-29 |
Family
ID=73898036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011019865.4A Withdrawn CN112146933A (en) | 2020-09-25 | 2020-09-25 | Water body detection sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112146933A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112985916A (en) * | 2021-04-02 | 2021-06-18 | 安徽国泰众信检测技术有限公司 | Sampling device for food detection |
| CN113029692A (en) * | 2021-03-12 | 2021-06-25 | 上海海事大学 | Underwater sampling device |
| CN114100466A (en) * | 2021-10-28 | 2022-03-01 | 营口理工学院 | Environment-friendly industrial lubricant and preparation device thereof |
| CN114814147A (en) * | 2022-06-30 | 2022-07-29 | 江苏航运职业技术学院 | Underground water quality periodic variation intelligent analysis system and water quality measuring device |
| CN116990087A (en) * | 2023-09-27 | 2023-11-03 | 山东清控生态环境产业发展有限公司 | Water quality monitoring equipment for preventing and treating water environmental pollution |
-
2020
- 2020-09-25 CN CN202011019865.4A patent/CN112146933A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029692A (en) * | 2021-03-12 | 2021-06-25 | 上海海事大学 | Underwater sampling device |
| CN113029692B (en) * | 2021-03-12 | 2023-09-12 | 上海海事大学 | Underwater sampling device |
| CN112985916A (en) * | 2021-04-02 | 2021-06-18 | 安徽国泰众信检测技术有限公司 | Sampling device for food detection |
| CN112985916B (en) * | 2021-04-02 | 2022-06-07 | 安徽国泰众信检测技术有限公司 | Sampling device for food detection |
| CN114100466A (en) * | 2021-10-28 | 2022-03-01 | 营口理工学院 | Environment-friendly industrial lubricant and preparation device thereof |
| CN114100466B (en) * | 2021-10-28 | 2023-09-15 | 营口理工学院 | Environment-friendly industrial lubricant preparation device |
| CN114814147A (en) * | 2022-06-30 | 2022-07-29 | 江苏航运职业技术学院 | Underground water quality periodic variation intelligent analysis system and water quality measuring device |
| CN114814147B (en) * | 2022-06-30 | 2022-09-13 | 江苏航运职业技术学院 | Underground water quality periodic variation intelligent analysis system and water quality measuring device |
| CN116990087A (en) * | 2023-09-27 | 2023-11-03 | 山东清控生态环境产业发展有限公司 | Water quality monitoring equipment for preventing and treating water environmental pollution |
| CN116990087B (en) * | 2023-09-27 | 2024-04-02 | 山东清控生态环境产业发展有限公司 | Water quality monitoring equipment for preventing and treating water environmental pollution |
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Application publication date: 20201229 |