CN212300972U - Device capable of collecting water sample at fixed depth - Google Patents
Device capable of collecting water sample at fixed depth Download PDFInfo
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- CN212300972U CN212300972U CN202021346133.1U CN202021346133U CN212300972U CN 212300972 U CN212300972 U CN 212300972U CN 202021346133 U CN202021346133 U CN 202021346133U CN 212300972 U CN212300972 U CN 212300972U
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Abstract
The utility model discloses a can depthkeeping gather device of water sample. The sampling bottle of the utility model is connected with the sampling rod through the sampling line, and the length of the sampling line can be adjusted; the top end and the bottom end of the sampling bottle are open, the sampling bottle is sequentially provided with a first water inlet plate, a second water inlet plate, a third water inlet plate and a fourth water inlet plate from bottom to top, the driving assembly drives the first water inlet plate and the second water inlet plate to relatively rotate until the first water inlet hole is communicated with or staggered with the second water inlet hole and is not communicated with the second water inlet hole, and the driving assembly drives the third water inlet plate and the fourth water inlet plate to relatively rotate until the one-to-one corresponding third water inlet hole is communicated with or staggered with or not communicated with the fourth water inlet hole; the monitoring system comprises a control panel, a controller, a temperature sensor and a water pressure sensor, wherein the controller is electrically connected with the temperature sensor, the water pressure sensor, a driving assembly and the control panel. The utility model discloses can realize under the condition of low disturbance water, the water sample under the degree of depth that effectual collection is confirmed.
Description
Technical Field
The utility model relates to a water sampling technical field especially relates to a device of water sample can be gathered to depthkeeping.
Background
The water sample sampler is a common instrument for collecting water samples, at present, the water sample sampler is usually in a top opening type, can only collect the water sample on the upper surface of a water body generally, and can not obtain real and accurate water quality data when collecting the water sample requiring a certain depth.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an improve the device of collecting the water sample of depthkeeping of sampling efficiency and quality to the above-mentioned not enough of prior art.
The utility model discloses a device capable of collecting water samples at fixed depth, which comprises a sampling rod, a sampling bottle, a monitoring system and a driving component; the sampling bottle is connected to the sampling rod through a sampling line, and the length of the sampling line is adjustable; the top end and the bottom end of the sampling bottle are open, the sampling bottle is sequentially provided with a first water inlet plate, a second water inlet plate, a third water inlet plate and a fourth water inlet plate from bottom to top, the second water inlet plate is attached to the first water inlet plate, the third water inlet plate is attached to the fourth water inlet plate, the third water inlet plate and the second water inlet plate are arranged at intervals, the third water inlet plate and the second water inlet plate form a water storage cavity together with the side wall of the sampling bottle, the first water inlet plate is provided with a plurality of first water inlet holes at intervals, the second water inlet plate is provided with a plurality of second water inlet holes corresponding to the first water inlet holes one by one, the driving assembly drives the first water inlet plate and the second water inlet plate to relatively rotate until the first water inlet holes are communicated or staggered with the second water inlet holes and not communicated with each other, and the third water inlet plate is provided with a plurality of third water inlet holes at intervals, a plurality of fourth water inlet holes which are in one-to-one correspondence with the third water inlet holes are arranged on the fourth water inlet plate at intervals, and the driving assembly drives the third water inlet plate and the fourth water inlet plate to relatively rotate until the third water inlet holes which are in one-to-one correspondence with the fourth water inlet holes are communicated or staggered and not communicated with each other; the monitoring system comprises a control panel, a controller, a temperature sensor and a water pressure sensor, wherein the temperature sensor and the water pressure sensor are arranged on the sampling bottle, the controller is electrically connected with the temperature sensor, the water pressure sensor, a driving component and the control panel, the controller receives signals sent by the temperature sensor and the water pressure sensor, generates state feedback signals and sends the state feedback signals to the control panel, so that the control panel determines and outputs display contents according to the received signals, and the controller receives operation request signals sent by the control panel and controls the driving component.
Furthermore, a winding reel is arranged on the sampling rod, one end of the sampling line is wound on the winding reel, and the other end of the sampling line is fixedly connected with the sampling bottle.
Furthermore, the bobbin is in transmission connection with a driving piece, and the driving piece drives the bobbin to rotate.
Furthermore, the driving part comprises a first motor, the driving end of the first motor is in transmission connection with the winding reel, and the controller is electrically connected with the first motor.
Furthermore, one end of the sampling rod is provided with a pulley, and the other end of the sampling line bypasses the pulley and is fixedly connected with the sampling bottle.
Furthermore, the sampling rod is a telescopic rod.
Furthermore, the other end of the sampling rod is provided with a handle.
Further, the top detachable of sampling bottle installs the roof, the interval is equipped with a plurality of first meshes that run through it on the roof, the bottom detachable of sampling bottle installs the bottom plate, the interval is equipped with a plurality of second meshes that run through it on the bottom plate.
Further, drive assembly includes the second motor, the second motor is installed on the bottom plate, first board and the equal fixed mounting of fourth board of intaking are in on the sampling bottle, the equal rotatable setting of board and the third board of intaking is in on the sampling bottle, be equipped with the rotatory hole that runs through it on the first board of intaking, be equipped with the fixed orifices that runs through it on the board is intake to the second, the drive end of second motor passes in proper order rotatory hole and fixed orifices with the third board of intaking is connected fixedly, just the drive end of second motor can be relative rotatory hole rotates, the drive end of second motor is fixed in the fixed orifices.
Further, the controller is electrically connected with the second motor.
Furthermore, the sidewall of the upper end of the sampling bottle is provided with an overflow port communicated with the water storage cavity, the sidewall of the lower end of the sampling bottle is provided with a water outlet communicated with the water storage cavity, and the overflow port and the water outlet are both provided with valves for opening or closing the overflow port and the water outlet.
The utility model discloses a but device use of depthkeeping water sample as follows: the sampling bottle is placed into a water body to be sampled, the controller controls the driving assembly to drive the first water inlet plate and the second water inlet plate to rotate relatively, so that the first water inlet hole is communicated with the second water inlet hole, water enters the water storage cavity through the first water inlet hole and the second water inlet hole, the third water inlet plate and the fourth water inlet plate are driven to rotate relatively, so that the third water inlet hole is communicated with the fourth water inlet hole, water enters the water storage cavity through the third water inlet hole and the fourth water inlet hole, so that the sampling bottle sinks, signals detected by the temperature sensor and the water pressure sensor are transmitted to the controller and displayed on the control panel, the sampling depth of the sampling bottle is set on the control panel before sampling, then the real-time water pressure signal is fed back to the controller through the water pressure sensor and is displayed on the control panel in real time, the sampling bottle further automatically reaches the preset depth, and after the sampling bottle reaches the preset depth is detected, the controller controls the driving assembly to drive the first water inlet plate and the second water inlet plate to rotate relatively, so that the first water inlet hole and the second water inlet hole are staggered and not communicated, the third water inlet plate and the fourth water inlet plate are driven to rotate relatively, the third water inlet hole and the fourth water inlet hole are staggered and not communicated, the water storage cavity is sealed, a water sample collected in the sampling bottle according to a set depth is guaranteed, then the sampling bottle is taken out of a water body by adjusting the length of a sampling line, and sampling is completed.
The utility model discloses a but device of depthkeeping water sample collection simple structure, convenient to use, the efficient gains the water sample of the degree of depth of settlement, and it can realize under the condition of low disturbance water, the water sample under the effectual degree of depth of gathering affirmation.
Drawings
Fig. 1 is a schematic structural view of a device for collecting water samples at a fixed depth according to the present invention;
fig. 2 is a schematic structural diagram of the sampling bottle of the present invention.
1. A sampling rod; 11. a handle; 2. a sampling bottle; 21. a first water intake plate; 211. a first water inlet hole; 212. rotating the hole; 22. a second water intake plate; 221. a second water inlet hole; 222. a fixing hole; 23. a third water intake plate; 231. a third water inlet hole; 24. a fourth water intake plate; 241. a fourth water inlet hole; 25. a top plate; 251. a first mesh; 26. a base plate; 261. a second mesh; 27. an overflow port; 28. a water outlet; 3. a monitoring system; 31. a control panel; 32. a controller; 33. a temperature sensor; 34. a water pressure sensor; 4. a drive assembly; 41. a second motor; 5. sampling lines; 6. a water storage cavity; 7. a bobbin; 8. a drive member; 81. a first motor; 9. a pulley.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, the device for collecting water samples at a fixed depth of the utility model comprises a sampling rod 1, a sampling bottle 2, a monitoring system 3 and a driving component 4; the sampling bottle 2 is connected to the sampling rod 1 through a sampling line 5, and the length of the sampling line 5 is adjustable; the top end and the bottom end of the sampling bottle 2 are open, the sampling bottle 2 is sequentially provided with a first water inlet plate 21, a second water inlet plate 22, a third water inlet plate 23 and a fourth water inlet plate 24 from bottom to top, the second water inlet plate 22 is attached to the first water inlet plate 21, the third water inlet plate 23 is attached to the fourth water inlet plate 24, the third water inlet plate 23 and the second water inlet plate 22 are arranged at intervals, the third water inlet plate 23, the second water inlet plate 22 and the side wall of the sampling bottle 2 form a water storage cavity 6 together, the first water inlet plate 21 is provided with a plurality of first water inlet holes 211 at intervals, the second water inlet plate 22 is provided with a plurality of second water inlet holes 221 which are in one-to-one correspondence with the first water inlet holes 211 at intervals, the driving assembly 4 drives the first water inlet plate 21 and the second water inlet plate 22 to rotate relatively until the first water inlet holes 211 are communicated with the second water inlet holes 221 or staggered and not communicated with each other, the third water inlet holes 231 are arranged at intervals on the third water inlet plate 23, the driving assembly 4 drives the third water inlet plate 23 and the fourth water inlet plate 24 to rotate relatively until the one-to-one corresponding third water inlet holes 231 are communicated with or staggered with the fourth water inlet holes 241 and are not communicated with each other; the monitoring system 3 comprises a control panel 31, a controller 32, a temperature sensor 33 and a water pressure sensor 34, wherein the temperature sensor 33 and the water pressure sensor 34 are arranged on the sampling bottle 2, the controller 32 is electrically connected with the temperature sensor 33, the water pressure sensor 34, the driving component 4 and the control panel 31, the controller 32 generates a state feedback signal according to the received signals sent by the temperature sensor 33 and the water pressure sensor 34, and sends the state feedback signal to the control panel 31, so that the control panel 31 determines and outputs display contents according to the received signals, and the controller 32 receives an operation request signal sent by the control panel 31 and controls the driving component 4.
The utility model discloses a but device use of depthkeeping water sample as follows: the sampling bottle 2 is put into a water body to be sampled, the controller 32 controls the driving assembly 4 to drive the first water inlet plate 21 and the second water inlet plate 22 to rotate relatively, so that the first water inlet hole 211 is communicated with the second water inlet hole 221, water enters the water storage cavity 6 through the first water inlet hole 211 and the second water inlet hole 221, the third water inlet plate 23 and the fourth water inlet plate 24 are driven to rotate relatively, so that the third water inlet hole 231 is communicated with the fourth water inlet hole 241, water enters the water storage cavity 6 through the third water inlet hole 231 and the fourth water inlet hole 241, so that the sampling bottle 2 sinks, the temperature sensor 33 and the water pressure sensor 34 both detect signals and transmit the signals to the controller 32 to be displayed on the control panel 31, wherein the sampling depth of the sampling bottle 2 is set on the control panel 31 before sampling, then a real-time water pressure signal is fed back to the controller 32 through the water pressure sensor 34 and the depth is displayed on the control panel 31 in real time, further sink to preset the degree of depth automatically, after detecting to reach preset the degree of depth, controller 32 control drive assembly 4 drive first board 21 and the relative rotation of second board 22 of intaking, make first inlet opening 211 stagger mutually with second inlet opening 221 and not communicate with each other, drive third board 23 and the relative rotation of fourth board 24 of intaking, make third inlet opening 231 stagger mutually with fourth inlet opening 241 and not communicate with each other, realize the closure of water storage chamber 6, what guarantee to gather in the sampling bottle 2 is the water sample according to the degree of depth that sets for, then take out sampling bottle 2 from the water through the length of adjusting sampling line 5, accomplish the sample.
The utility model discloses a but device of depthkeeping water sample collection simple structure, convenient to use, the efficient gains the water sample of the degree of depth of settlement, and it can realize under the condition of low disturbance water, the water sample under the effectual degree of depth of gathering affirmation.
The arrangement of the sampling line 5 is various, and is not limited herein, for example: can be equipped with bobbin 7 on the sampling rod 1, the one end winding of sampling line 5 is on bobbin 7, and sampling line 5's the other end is connected fixedly with sampling bottle 2, realizes the length adjustment of sampling line 5 through rotating bobbin 7, and bobbin 7 can also be connected with the transmission of driving piece 8, and driving piece 8 drive bobbin 7 rotates, and the structure of driving piece 8 has the multiple, does not do the injecing here, and in this embodiment, driving piece 8 can include first motor 81, the drive end of first motor 81 with bobbin 7 transmission is connected, and controller 32 is connected with first motor 81 electricity. Through first motor 81 of controller 32 control, realize that bobbin 7 rotates, the one end of sampling rod 1 can be equipped with pulley 9, and the other end of sampling line 5 can be walked around pulley 9 and be connected fixedly with sampling bottle 2, and pulley 9 is used for providing holding power and slip for sampling line 5.
Sampling rod 1 is the telescopic link, and sampling rod 1 can stretch out and draw back according to the sampling demand, can improve the demand to the sampling condition greatly.
The other end of the sampling rod 1 can be provided with a handle 11, which is convenient for an operator to hold.
As shown in FIG. 2, a top plate 25 is detachably mounted on the top of the sampling bottle 2, a plurality of first meshes 251 are arranged on the top plate 25 at intervals, a bottom plate 26 is detachably mounted on the bottom of the sampling bottle 2, and a plurality of second meshes 261 are arranged on the bottom plate 26 at intervals. Roof 25 and bottom plate 26 all can adopt threaded connection to be connected fixedly with sampling bottle 2, and the continuous sinking of first mesh 251 accessible sampling bottle 2 of roof 25 is upwards automatic discharge through first mesh 251 with the internal water of bottle, and the second mesh 261 of bottom plate 26 can prevent that great debris in the water from getting into in the sampling bottle 2.
The structure of the driving assembly 4 is various, and not limited herein, in this embodiment, the driving assembly 4 may include a second motor 41, the second motor 41 is installed on the bottom plate 26, the first water inlet plate 21 and the fourth water inlet plate 24 are both fixedly installed on the sampling bottle 2, the second water inlet plate 22 and the third water inlet plate 23 are both rotatably installed on the sampling bottle 2, the first water inlet plate 21 is provided with a rotation hole 212 penetrating through the first water inlet plate, the second water inlet plate 22 is provided with a fixing hole 222 penetrating through the second water inlet plate, the driving end of the second motor 41 sequentially penetrates through the rotation hole 212 and the fixing hole 222 to be connected and fixed with the third water inlet plate 23, the driving end of the second motor 41 can rotate relative to the rotation hole 212, the driving end of the second motor 41 is fixed in the fixing hole 222, so that the driving end of the second motor 41 drives the second water inlet plate 22 and the third water inlet plate 23 to rotate, so as to realize the relative movement of the positions of the first water inlet hole 211 and the second water inlet hole 221 on the first water inlet plate 21 and the second water inlet plate 22, the bottom of the water storage cavity 6 is opened or closed, the relative movement of the positions of the third and fourth water inlet holes 231 and 241 on the third and fourth water inlet plates 23 and 24 is realized, and the top of the water storage cavity 6 is opened or closed. The controller 32 may be electrically connected to the second motor 41. The controller 32 controls the operation of the second motor 41, when sampling is started, the controller 32 controls the second motor 41 to drive the second water inlet plate 22 and the third water inlet plate 23 to rotate, so that water enters the water storage cavity 6 through the first water inlet hole 211, the second water inlet hole 221, the third water inlet hole 231 and the fourth water inlet hole 241, the controller 32 controls the first motor 81 to rotate, so that the sampling line 5 reaches a preset depth along with the sampling bottle 2, the controller 32 controls the second motor 41 to drive the second water inlet plate 22 and the third water inlet plate 23 to rotate, so that the first water inlet hole 211 and the second water inlet hole 221 are staggered, the third water inlet hole 231 and the fourth water inlet hole 241 are staggered, so as to seal the water storage cavity 6, then the controller 32 controls the first motor 81 to rotate, so that the sampling line 5 drives the sampling bottle 2 to ascend and leave, the sampling depth is electrically controlled, and the water temperature at a certain depth can be monitored in real time, the physical consumption of sampling personnel can be effectively reduced, and the sampling efficiency is improved while the sampling accuracy is greatly improved.
Wherein, the apertures of the first, second, third and fourth water inlet holes 211, 221, 231 and 241 may be the same, and the hole interval distance is greater than the aperture.
The second motor 41 can be fixed at the center of the bottom plate 26, so that the weight of the lower part of the sampling bottle 2 is increased by the weight of the second motor 41, and the bottle body is ensured to be in a vertical state when sinking. Wherein the electrical energy of the second electrical machine 41 can be realized by means of electrical cables, wherein external electrical cables can be embedded in the sampling line 5. Of course, many other methods are available in the art and will not be described in detail herein.
The controller 32 may have various configurations, which are not limited herein, such as: can include information processing module and task execution module, information processing module is used for receiving pressure and temperature of sampling bottle 2 under certain degree of depth, turn into the degree of depth through the processing and show on control panel 31, show the temperature on control panel 31, when sampling bottle 2 reaches preset depth, control panel 31 gives instructions to controller 32, controller 32 controls second motor 41 and operates, close behind the water storage chamber 6, the first motor 81 of controller 32 control operates, pull out sampling bottle 2 from the water.
The controller 32, water pressure sensor 34 and temperature sensor 33 may be commercially available products such as: a KEWILL water pressure sensor, a PLC controller 32 and a WZPK-336 temperature sensor 33.
The upper end of the sampling bottle 2 can be provided with an overflow port 27 communicated with the water storage cavity 6, the lower end of the sampling bottle 2 is provided with a water outlet 28 communicated with the water storage cavity 6, and the overflow port 27 and the water outlet 28 are both provided with valves (not shown in the figure) for opening or closing the overflow port 27 and the water outlet 28. After taking sampling bottle 2, can open overflow mouth, delivery port 28 in proper order, arrange the water sample and save in other containers, can select to rotate second motor 41 through control panel 31 again with remaining water, discharge water from the bottom of sampling bottle 2 in proper order, the collection of a water sample has been accomplished this moment. After the sampling, can further disassemble the partial part of sampling bottle 2 through rotatory screw thread and wash work, close monitored control system 3 and accomodate arrangement sampling pole 1 and sampling bottle 2.
The above is not relevant and is applicable to the prior art.
Although certain specific embodiments of the present invention have been described in detail by way of illustration, it will be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention, which is to be construed as broadly as the present invention will suggest themselves to those skilled in the art to which the invention pertains and which is susceptible to various modifications or additions and similar arrangements to the specific embodiments described herein without departing from the scope of the invention as defined in the appended claims. It should be understood by those skilled in the art that any modifications, equivalent substitutions, improvements and the like made to the above embodiments according to the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a device that can depthkeeping gather water sample which characterized in that: comprises a sampling rod (1), a sampling bottle (2), a monitoring system (3) and a driving component (4); the sampling bottle (2) is connected to the sampling rod (1) through a sampling line (5), and the length of the sampling line (5) is adjustable; the top and the bottom of sampling bottle (2) are uncovered, from upwards being equipped with first board (21) of intaking, second board (22) of intaking, third board (23) and fourth board (24) of intaking down in proper order in sampling bottle (2), second board (22) of intaking and first board (21) of intaking are gone up to paste, third board (23) of intaking with fourth board (24) of intaking pastes mutually, just third board (23) of intaking with board (22) interval setting is intake to the second, third board (23) of intaking with second board (22) of intaking with the lateral wall of sampling bottle (2) constitutes water storage chamber (6) together, first board (21) interval of intaking is equipped with a plurality of first inlet openings (211), second board (22) of intaking go up the interval be provided with a plurality of with second inlet opening (221) of first inlet opening (211) one-to-one, drive assembly (4) drive first board (21) and second board (22) of intaking are changeed relatively board (22), second board (22) are changeed The first water inlet hole (211) is communicated with or staggered with the second water inlet hole (221) and is not communicated with the second water inlet hole, a plurality of third water inlet holes (231) are arranged on the third water inlet plate (23) at intervals, a plurality of fourth water inlet holes (241) corresponding to the third water inlet holes (231) in a one-to-one manner are arranged on the fourth water inlet plate (24) at intervals, and the driving assembly (4) drives the third water inlet plate (23) and the fourth water inlet plate (24) to rotate relatively to enable the third water inlet holes (231) corresponding to each other to be communicated with or staggered with or not communicated with the fourth water inlet holes (241); the monitoring system (3) comprises a control panel (31), a controller (32), a temperature sensor (33) and a water pressure sensor (34), the temperature sensor (33) and the water pressure sensor (34) are arranged on the sampling bottle (2), the controller (32) is electrically connected with the temperature sensor (33), the water pressure sensor (34), the driving component (4) and the control panel (31), the controller (32) generates a state feedback signal according to the received signals sent by the temperature sensor (33) and the water pressure sensor (34) and sends the state feedback signal to the control panel (31), so that the control panel (31) determines and outputs display contents according to the received signal, the controller (32) receives an operation request signal sent by the control panel (31) and controls the driving component (4).
2. The device for collecting water samples at fixed depth according to claim 1, wherein: the sampling device is characterized in that a bobbin (7) is arranged on the sampling rod (1), one end of the sampling line (5) is wound on the bobbin (7), and the other end of the sampling line (5) is fixedly connected with the sampling bottle (2).
3. The device for collecting water samples at fixed depth according to claim 2, wherein: the bobbin (7) is in transmission connection with a driving piece (8), and the driving piece (8) drives the bobbin (7) to rotate.
4. The device for collecting water samples at fixed depth according to claim 3, wherein: the driving piece (8) comprises a first motor (81), the driving end of the first motor (81) is in transmission connection with the winding drum (7), and the controller (32) is electrically connected with the first motor (81).
5. The device for collecting water samples at fixed depth according to claim 2, wherein: one end of the sampling rod (1) is provided with a pulley (9), and the other end of the sampling line (5) bypasses the pulley (9) and the sampling bottle (2) to be connected and fixed.
6. The device for collecting water samples at fixed depth according to claim 5, wherein: the sampling rod (1) is a telescopic rod.
7. The device for collecting water samples at fixed depth according to claim 6, wherein: the other end of the sampling rod (1) is provided with a handle (11).
8. The device for collecting water samples at fixed depth according to claim 1, wherein: top board (25) are installed to the top detachable of sampling bottle (2), the interval is equipped with a plurality of first meshs (251) that run through it on top board (25), bottom plate (26) are installed to the bottom detachable of sampling bottle (2), the interval is equipped with a plurality of second meshs (261) that run through it on bottom plate (26).
9. The apparatus for collecting water samples at a fixed depth according to claim 8, wherein: the drive assembly (4) comprising a second motor (41), the second motor (41) being mounted on the base plate (26), the first water inlet plate (21) and the fourth water inlet plate (24) are both fixedly arranged on the sampling bottle (2), the second water inlet plate (22) and the third water inlet plate (23) are both rotatably arranged on the sampling bottle (2), the first water inlet plate (21) is provided with a rotary hole (212) penetrating through the first water inlet plate, the second water inlet plate (22) is provided with a fixed hole (222) penetrating through the second water inlet plate, the driving end of the second motor (41) sequentially passes through the rotating hole (212) and the fixing hole (222) to be connected and fixed with the third water inlet plate (23), and the driving end of the second motor (41) can rotate relative to the rotating hole (212), the driving end of the second motor (41) is fixed in the fixing hole (222); the controller (32) is electrically connected to the second motor (41).
10. A depth-settable water sampling device as claimed in any one of claims 1 to 9, wherein: be equipped with on the upper end lateral wall of sampling bottle (2) with overflow mouth (27) that water storage chamber (6) are linked together, be equipped with on the lower extreme lateral wall of sampling bottle (2) with delivery port (28) that water storage chamber (6) are linked together, all be equipped with the valve of opening or closing it on overflow mouth (27) and delivery port (28).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021346133.1U CN212300972U (en) | 2020-07-08 | 2020-07-08 | Device capable of collecting water sample at fixed depth |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021346133.1U CN212300972U (en) | 2020-07-08 | 2020-07-08 | Device capable of collecting water sample at fixed depth |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855290A (en) * | 2020-07-08 | 2020-10-30 | 中国地质大学（武汉） | Device capable of collecting water sample at fixed depth |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855290A (en) * | 2020-07-08 | 2020-10-30 | 中国地质大学（武汉） | Device capable of collecting water sample at fixed depth |
| CN111855290B (en) * | 2020-07-08 | 2024-05-10 | 中国地质大学（武汉） | Device capable of collecting water sample at fixed depth |
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