CN108731983B - A sampling device for water resource detects - Google Patents
A sampling device for water resource detects Download PDFInfo
- Publication number
- CN108731983B CN108731983B CN201810561538.8A CN201810561538A CN108731983B CN 108731983 B CN108731983 B CN 108731983B CN 201810561538 A CN201810561538 A CN 201810561538A CN 108731983 B CN108731983 B CN 108731983B
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- test tube
- collecting
- sludge
- sampling
- collecting barrel
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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
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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
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- Life Sciences & Earth Sciences (AREA)
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- Health & Medical Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Hydrology & Water Resources (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a sampling device for water resource detection, which comprises a test tube fixing hole and a rubber fixing ring; the front end face of the winder is provided with a rotating handle which is rotatably connected with the outer end face of the winder, and the winder is connected with the handle through a traction rope; the lifting handle is of an arc strip-shaped structure, and two ends of the bottom of the lifting handle are both arranged on the end surface of the top of the collecting barrel; the balancing weight is arranged at the bottom of the collecting barrel, and the top of the connecting block is arranged on the arc end surface at the bottom of the balancing weight through a screw; the sludge collecting cone is provided with two sludge collecting hole parts which are of a chamfer angle structure, and the sludge collecting cone is positioned at the bottom of the collecting barrel; the device is favorable for collecting water samples of rivers and wells in deeper positions, so that personnel do not need to slide down to the water surface, the water samples are collected at positions with a longer distance from the water surface, and the sample collection work is more portable.
Description
Technical Field
The invention belongs to the technical field of water resource sampling, and particularly relates to a sampling device for water resource detection.
Background
Due to the rapid development of industry and the improper treatment of household garbage, water flow pollution in partial areas is serious, and the polluted water flow can bring serious harm to the health of human bodies. Therefore, the water flow needs to be monitored for pollution, and in the process, a sampler needs to be used for sampling and collecting the water flow to be monitored.
Based on the foregoing, the inventor discovers through the retrieval that there is similar water resource sampling device now, for example the hand-held type water quality sampler that patent application number CN207066790U proposed, including shell, peristaltic pump and turning block, the inside arrangement of shell has the motor, and the side surface of shell is provided with the telescopic link, the lower extreme of shell is fixed with the handle, and the front end of handle is provided with shift knob, hose fixed port is installed to the upper end of peristaltic pump, the external fixation of turning block has the peristaltic pump, and the right side of turning block is connected with the motor, the upper and lower both ends of turning block are fixed with the fixed block, and the inside of fixed block is provided with the gyro wheel, install the bolt between turning block and the fixed block, the right-hand member of hose is provided with the filter block, the surperficial arrangement of telescopic link has. The hose of appropriate length can be directly put down from the telescopic link to the hose of this hand-held type water quality sampler installation during use to remove user's need in the past from and unpack the water quality sampler apart, and will adjust the step that the quality of water of the different degree of depth could be carried out to the length that exposes of the inside water pipe of water quality sampler.
A positionable water quality sampling bottle, also for example as described in patent application No. CN207248568U, comprising: a bottle body and a cover body; the bottle body comprises a bottle body and a bottle mouth connected to the upper end of the bottle body, the bottle body is provided with a bottle shoulder part, and the outer wall of the bottle body is provided with a groove arranged along the circumferential direction of the bottle body; the lid is including the fixed part of inlaying in the recess, with bottleneck threaded connection's lid body and the connecting portion of connecting fixed part and lid body, wherein, the lid body includes caping portion and lid wall, is equipped with GPS locator and rechargeable battery in the caping portion, is equipped with the switching device of control GPS locator and rechargeable battery intercommunication in the lid wall. The invention enables monitoring personnel and scientific research personnel to know the progress of sample collection in real time. The invention can enable monitoring personnel and scientific research personnel to entrust the field work of sample collection, and can greatly save human resources, road time and traffic cost.
Based on the search of the above two patents and the discovery of the device in the prior art, although the device can perform the conventional water quality sampling operation, there are several problems in the actual field use process, including: the collection efficiency of deep wells and river water body samples with large height fall is poor, personnel need to fall to the water surface to sample the water quality, and the collection is complicated; and the sample that the device was gathered is too single, can't be effectual collects the silt of gathering the rivers bottom, leads to the data collection too simple ization, leads to the data that detect to be inaccurate easily.
Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a sampling device for water resource detection is provided, so as to achieve the purpose of higher practical value.
Disclosure of Invention
In order to solve the technical problems, the invention provides a sampling device for water resource detection, which aims to solve the problems that the existing similar device has poor acquisition efficiency on deep wells and river water body samples with large height fall, personnel can sample water only by falling to the water surface, and the acquisition is complicated; and the sample that the device was gathered is too single, can't be effectual collects the silt of gathering the rivers bottom, leads to the data collection too simple ization, leads to the not accurate problem of data that detect easily.
The purpose and the effect of the sampling device for water resource detection are achieved by the following specific technical means:
a sampling device for water resource detection comprises a winder, a rotating handle, a traction rope, a lifting handle, a collecting barrel, a water inlet hole, a balancing weight, a connecting block, a sludge collecting cone, a sludge collecting hole, a sampling test tube, a test tube fixing groove, a test tube arrangement plate, arrangement holes, a test tube fixing plate, a test tube fixing hole and a rubber fixing ring; the front end face of the winder is provided with a rotating handle which is rotatably connected with the outer end face of the winder, and the winder is connected with the handle through a traction rope; the lifting handle is of an arc strip-shaped structure, and two ends of the bottom of the lifting handle are both arranged on the end surface of the top of the collecting barrel; the balancing weight is arranged at the bottom of the collecting barrel, and the top of the connecting block is arranged on the arc end surface at the bottom of the balancing weight through a screw; the sludge collecting cone is provided with two sludge collecting hole parts which are of a chamfer angle structure, and the sludge collecting cone is positioned at the bottom of the collecting barrel; the sampling test tubes are vertically arranged in the collecting barrel, and the bottom of each sampling test tube is provided with a circular arc-shaped test tube fixing groove in a surrounding manner; the test tube arrangement plate is of a circular plate-shaped structure, the periphery of the test tube arrangement plate is connected with the inner wall of the top end of the collection barrel, and twelve arrangement holes are uniformly distributed in the test tube arrangement plate; the test tube fixing plate is of a circular plate-shaped structure, the periphery of the test tube fixing plate is connected with the inner wall of the collecting barrel, and the bottoms of the sampling test tubes are arranged inside the test tube fixing plate in order; the rubber fixing ring is twelve, is of a ring-shaped structure and is arranged on the test tube fixing plate.
Furthermore, haulage rope one end twines on the outer terminal surface of winder, and the haulage rope other end is connected with collection bucket top handle.
Furthermore, thirty-two water inlet holes are formed in the bottom of the outer end face of the collecting barrel, and the collecting barrel is of a cylindrical hollow structure.
Furthermore, the balancing weight is of a circular arc-shaped block structure and is installed on the end face of the bottom of the collecting barrel through a screw.
Furthermore, the bottom of the sludge collection cone is of a conical structure, the sludge collection cone is internally of a hollow structure, and sludge collection holes are formed in the front end face and the rear end face of the sludge collection cone respectively.
Furthermore, the external thread is seted up at silt collection awl outer terminal surface top, and sets up the internal thread in the connecting block bottom to silt is gathered and is connect with connecting block bottom threaded connection.
Furthermore, the sampling test tubes are arranged in twelve positions, and the tops of the sampling test tubes are inserted into twelve arrangement holes formed in the test tube arrangement plate in the collection barrel.
Further, twelve test tube fixing holes are formed in the test tube fixing plate, a rubber fixing ring is installed inside each test tube fixing hole, and the sampling test tubes are buckled in the rubber fixing ring installed inside the test tube fixing plate through test tube fixing grooves formed in the sampling test tubes.
Compared with the prior art, the invention has the following beneficial effects:
the arrangement of the traction rope and the winder is beneficial to carrying out water body sample collection operation on deeper rivers and wells through the device, so that personnel do not need to slide down to the water surface, can immediately carry out collection operation on water body samples at positions with a longer height distance from the water surface, and the sample collection work is more portable; and the setting of bucket, inlet opening and balancing weight is gathered in the cooperation, is favorable to making the device can be swift sink to the aquatic, gathers the operation to the water sample, has promoted sample collection efficiency.
The arrangement of the collecting barrel and the sampling test tube is beneficial to directly collecting the water flow sample through the sampling test tube, the sealing work of the water flow sample in the sampling test tube in the later period is facilitated, and the problem that the collected water body is polluted by a storage object due to repeated dumping operation, and the accuracy of the later-period water body detection numerical value is influenced is avoided; and cooperation test tube fixed plate and the solid fixed ring's of rubber use can be fixed the inside sampling test tube of placing of device, avoids the sampling test tube to receive the influence of buoyancy when entrying, leads to the sampling test tube to separate mutually with the device as the main part, influences the sampling test tube to water sample collection effect.
The arrangement of the sludge collecting cone and the sludge collecting hole is beneficial to collecting and sampling the sludge deposited at the bottom of the water flow, so that the detected values of the water body sample can be compared through various values tested by the sludge at the later stage, and the accuracy of the detected values is improved; and cooperation silt is gathered awl and connecting block threaded connection's setting, makes things convenient for personnel to gather the inside silt of gathering of awl and takes out to carry out sealed storage work to its inside silt.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic diagram of a right-view structure of the collection barrel of the present invention.
Fig. 3 is a schematic view of the sectional structure of the inner part of the collecting barrel of the present invention.
Fig. 4 is a schematic view of the installation structure of the sampling test tube inside the collecting barrel.
Fig. 5 is a schematic view of a sectional connection structure of the connection block and the sludge collection cone of the invention.
Fig. 6 is a schematic view of the front view of the sampling tube of the present invention.
FIG. 7 is a schematic axial view of the cuvette alignment plate according to the present invention.
Fig. 8 is a schematic top view of the test tube fixing plate of the present invention.
FIG. 9 is a schematic sectional view A-A of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
the device comprises a winder-1, a rotating handle-2, a traction rope-3, a lifting handle-4, a collecting barrel-5, a water inlet-501, a balancing weight-6, a connecting block-7, a sludge collecting cone-8, a sludge collecting hole-801, a sampling test tube-9, a test tube fixing groove-901, a test tube arrangement plate-10, an arrangement hole-1001, a test tube fixing plate-11, a test tube fixing hole-1101 and a rubber fixing ring-12.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 9:
the invention provides a sampling device for water resource detection, which comprises a winder 1, a rotating handle 2, a traction rope 3, a handle 4, a collecting barrel 5, a water inlet hole 501, a balancing weight 6, a connecting block 7, a sludge collecting cone 8, a sludge collecting hole 801, a sampling test tube 9, a test tube fixing groove 901, a test tube arrangement plate 10, an arrangement hole 1001, a test tube fixing plate 11, a test tube fixing hole 1101 and a rubber fixing ring 12, wherein the winder comprises a first guide roller, a second guide roller and a third guide roller; a rotating handle 2 is arranged on the front end face of the winder 1, the rotating handle 2 is rotatably connected with the outer end face of the winder 1, and the winder 1 is connected with a handle 4 through a traction rope 3; the handle 4 is of an arc strip-shaped structure, and two ends of the bottom of the handle 4 are both arranged on the end surface of the top of the collecting barrel 5; the balancing weight 6 is arranged at the bottom of the collecting barrel 5, and the top of the connecting block 7 is arranged on the arc end surface at the bottom of the balancing weight 6 through a screw; the sludge collecting cone 8 is provided with two sludge collecting holes 801 which are in a chamfer angle structure, and the sludge collecting cone 8 is positioned at the bottom of the collecting barrel 5; the sampling test tubes 9 are vertically arranged in the collecting barrel 5, and the bottom of each sampling test tube 9 is provided with a circular arc-shaped test tube fixing groove 901 in a surrounding manner; the test tube arrangement plate 102 is of a circular plate-shaped structure, the periphery of the test tube arrangement plate 10 is connected with the inner wall of the top end of the collection barrel 5, and twelve arrangement holes 1001 are uniformly distributed in the test tube arrangement plate 10; the test tube fixing plate 11 is of a circular plate-shaped structure, the periphery of the test tube fixing plate 11 is connected with the inner wall of the collecting barrel 5, and the bottoms of the sampling test tubes 9 are regularly arranged in the test tube fixing plate 11; the fixed ring 12 of rubber is twelve, and the fixed ring 12 of rubber is the ring form structure to the fixed ring 12 of rubber is all installed on test tube fixed plate 11.
Wherein, one end of the hauling rope 3 is wound on the outer end surface of the winder 1, and the other end of the hauling rope 3 is connected with a handle 4 at the top of the collecting barrel 5; the concrete effect can carry out rivers to deep well or darker river course in and draw the sampling operation, need not to descend to surface of water department, samples rivers from the eminence at once, has promoted device self practicality.
Thirty-two water inlet holes 501 are formed in the bottom of the outer end face of the collecting barrel 5, and the collecting barrel 5 is of a cylindrical hollow structure; concrete effect makes rivers more enough see through inlet opening 501 get into collection bucket 5 inside, makes collection bucket 5 sink more enough into the rivers to through the inside sampling test tube 9 of placing of collection bucket 5, carry out sampling work to the water.
The counterweight block 6 is of an arc-shaped block structure, and the counterweight block 6 is installed on the end face of the bottom of the collecting barrel 5 through a screw; concrete effect can increase device bottom weight through balancing weight 6, makes the device sink to the rivers fast more, makes things convenient for personnel swift more to carry out water sample collection operation to a certain region, has reduced the consumption of acquisition time.
The bottom of the sludge collection cone 8 is of a conical structure, the inside of the sludge collection cone 8 is of a hollow structure, and the front end face and the rear end face of the sludge collection cone 8 are respectively provided with a sludge collection hole 801; concrete effect, accessible silt are gathered and are pricked 8 and insert in the accumulational silt of water bottom, gather silt, make things convenient for personnel according to the inside composition that contains of silt, and the quality of indirect detection water resource promotes the accuracy nature that detects numerical value.
The top of the outer end face of the sludge collection cone 8 is provided with an external thread, the bottom of the connecting block 7 is provided with an internal thread, and the top of the sludge collection cone 8 is in threaded connection with the bottom of the connecting block 7; concrete effect makes things convenient for personnel to gather the silt that has the silt and gathers awl 8 and take off from the device bottom, pours silt to carry out careful detection achievement to silt in the later stage.
Wherein, sampling test tube 9 is twelve, and sampling test tube 9 top assign insert in the twelve of 5 inside test tubes in the collection bucket arrange the board 10 and set up arrange the hole 1001, concrete effect can be with the test tube together with collection bucket 5 immerse rivers, directly gather the water sample, make things convenient for the later stage to seal the inside water sample of test tube, avoid many times the water to empty the operation, cause the pollution to the water, influence the accuracy of later stage water detection numerical value.
Twelve test tube fixing holes 1101 are formed in the test tube fixing plate 11, a rubber fixing ring 12 is mounted in each test tube fixing hole 1101, and the sampling test tube 9 is buckled in the rubber fixing ring 12 mounted in the test tube fixing plate 11 through a test tube fixing groove 901 formed in the sampling test tube 9; concrete effect can be fixed sampling test tube 9 bottom, avoids leading to sampling test tube 9 and 5 inside separations of collection bucket because of sampling test tube 9 self buoyancy, influences the sampling effect of sampling test tube 9 to the water.
The specific use mode and function of the embodiment are as follows:
in the invention, a worker firstly inserts a sampling test tube 9 into a collecting barrel 5, fixes the sampling test tube 9 through a rubber fixing ring 12, and then installs a sludge collecting cone 8 at the bottom of a connecting block 7; next, the worker rotates the winder 1 to enable the traction rope 3 to drive the collecting barrel 5 to fall into water flow, the water flow enters the collecting barrel 5 through the water inlet hole 501, the collecting barrel 5 vertically sinks into the water flow, and the sampling test tube 9 in the collecting barrel 5 automatically collects water flow samples; a sludge collecting cone 8 at the bottom of the collecting barrel 5 is inserted into sludge at the bottom of the water flow under the action of gravity to collect the sludge; finally, the staff rotates the rotating handle 2, the collection barrel 5 is lifted up from the water flow through the traction rope 3, and the sampling test tube 9 is taken out from the collection barrel 5 and stored in a sealed mode; and take off silt collection awl 8 from gathering 5 bottoms, take out the inside silt sample of gathering of silt collection awl 8 and seal the storage to water and silt sample that later stage was gathered through the device carry out careful detection to quality of water.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (1)
1. The utility model provides a sampling device for water resource detects which characterized in that: the sampling device for detecting the water resource comprises a winder, a rotating handle, a traction rope, a lifting handle, a collecting barrel, a water inlet hole, a balancing weight, a connecting block, a sludge collecting cone, a sludge collecting hole, a sampling test tube, a test tube fixing groove, a test tube arranging plate, arranging holes, a test tube fixing plate, a test tube fixing hole and a rubber fixing ring; the front end face of the winder is provided with a rotating handle which is rotatably connected to the outer end face of the winder, and the winder is connected with the handle through a traction rope; the lifting handle is of an arc strip-shaped structure, and two ends of the bottom of the lifting handle are both arranged on the end surface of the top of the collecting barrel; the balancing weight is arranged at the bottom of the collecting barrel, and the top of the connecting block is arranged on the arc end surface at the bottom of the balancing weight through a screw; the sludge collecting cone is provided with two sludge collecting hole parts which are of a chamfer angle structure, and the sludge collecting cone is positioned at the bottom of the collecting barrel; the sampling test tubes are vertically arranged in the collecting barrel, and the bottom of each sampling test tube is provided with a circular arc-shaped test tube fixing groove in a surrounding manner; the test tube arrangement plate is of a circular plate-shaped structure, the periphery of the test tube arrangement plate is connected with the inner wall of the top end of the collection barrel, and twelve arrangement holes are uniformly distributed in the test tube arrangement plate; the test tube fixing plate is of a circular plate-shaped structure, the periphery of the test tube fixing plate is connected with the inner wall of the collecting barrel, and the bottoms of the sampling test tubes are arranged inside the test tube fixing plate in order; the rubber fixing rings are twelve in positions and are of a circular structure, and the rubber fixing rings are all arranged on the test tube fixing plate; one end of the traction rope is wound on the outer end face of the winder, and the other end of the traction rope is connected with a handle at the top of the collecting barrel; thirty-two water inlet holes are formed in the bottom of the outer end face of the collecting barrel, and the collecting barrel is of a cylindrical hollow structure; the counterweight block is of an arc-shaped blocky structure and is arranged on the end surface of the bottom of the collecting barrel through a screw; the bottom of the sludge collection cone is of a conical structure, the interior of the sludge collection cone is of a hollow structure, and the front end face and the rear end face of the sludge collection cone are respectively provided with a sludge collection hole; the top of the outer end face of the sludge collection cone is provided with an external thread, the bottom of the connecting block is internally provided with an internal thread, and the top of the sludge collection cone is in threaded connection with the bottom of the connecting block; the sampling test tubes are arranged in twelve positions, and the tops of the sampling test tubes are inserted into twelve arrangement holes formed in a test tube arrangement plate in the collection barrel; twelve test tube fixing holes are formed in the test tube fixing plate, a rubber fixing ring is arranged in each test tube fixing hole, and the sampling test tubes are buckled in the rubber fixing ring arranged in the test tube fixing plate through test tube fixing grooves formed in the sampling test tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810561538.8A CN108731983B (en) | 2018-06-04 | 2018-06-04 | A sampling device for water resource detects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810561538.8A CN108731983B (en) | 2018-06-04 | 2018-06-04 | A sampling device for water resource detects |
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| CN108731983A CN108731983A (en) | 2018-11-02 |
| CN108731983B true CN108731983B (en) | 2021-05-14 |
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| CN201810561538.8A Expired - Fee Related CN108731983B (en) | 2018-06-04 | 2018-06-04 | A sampling device for water resource detects |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406212A (en) * | 2018-12-13 | 2019-03-01 | 中国水产科学研究院黑龙江水产研究所 | A kind of sediment of pond collector |
| CN110907617B (en) * | 2019-10-30 | 2022-02-11 | 广州市金佰达生物环保科技有限公司 | A quality of water developments sampling device for aquaculture |
| CN114018312B (en) * | 2021-11-07 | 2024-04-05 | 天津市地质研究和海洋地质中心 | Integrated equipment and method for monitoring well investigation of groundwater environment |
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| JP2005221382A (en) * | 2004-02-05 | 2005-08-18 | Tsurumi Seiki:Kk | Benthos collection system |
| CN202853932U (en) * | 2012-07-17 | 2013-04-03 | 闫家国 | Multifunctional cylindrical water-mud sampler |
| CN103255805A (en) * | 2013-05-07 | 2013-08-21 | 孙永兰 | Water taking device |
| CN103674613A (en) * | 2013-12-13 | 2014-03-26 | 中国科学院、水利部成都山地灾害与环境研究所 | Suspended load sediment sampler |
| CN206838151U (en) * | 2017-04-01 | 2018-01-05 | 刘煜 | A kind of college chemical experiment room test tube fixing device |
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2018
- 2018-06-04 CN CN201810561538.8A patent/CN108731983B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005221382A (en) * | 2004-02-05 | 2005-08-18 | Tsurumi Seiki:Kk | Benthos collection system |
| CN202853932U (en) * | 2012-07-17 | 2013-04-03 | 闫家国 | Multifunctional cylindrical water-mud sampler |
| CN103255805A (en) * | 2013-05-07 | 2013-08-21 | 孙永兰 | Water taking device |
| CN103674613A (en) * | 2013-12-13 | 2014-03-26 | 中国科学院、水利部成都山地灾害与环境研究所 | Suspended load sediment sampler |
| CN206838151U (en) * | 2017-04-01 | 2018-01-05 | 刘煜 | A kind of college chemical experiment room test tube fixing device |
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Effective date of registration: 20210425 Address after: 810000 No.92 Chuangye Road, Chengzhong District, Xining City, Qinghai Province Applicant after: Qinghai Huijun Testing Technology Co.,Ltd. Address before: 550000 No. 10 Hubin Road, Guiyang High-tech Industrial Development Zone, Guiyang City, Guizhou Province Applicant before: GUIYANG RUIHANG INTELLIGENT TECHNOLOGY Co.,Ltd. |
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