CN105890929A - Liquid stratified sampling device and method for carrying out stratified sampling on liquid - Google Patents
Liquid stratified sampling device and method for carrying out stratified sampling on liquid Download PDFInfo
- Publication number
- CN105890929A CN105890929A CN201610287961.4A CN201610287961A CN105890929A CN 105890929 A CN105890929 A CN 105890929A CN 201610287961 A CN201610287961 A CN 201610287961A CN 105890929 A CN105890929 A CN 105890929A
- Authority
- CN
- China
- Prior art keywords
- stop valve
- probe tube
- remote control
- sampling
- control unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- G01N1/16—Devices for withdrawing samples in the liquid or fluent state with provision for intake at several levels
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to the technical field of sample collection devices, in particular to a liquid stratified sampling device. The liquid stratified sampling device comprises a sampling tube and a sampling bracket, wherein the sampling tube is formed in a way that a plurality of sampling tube units are connected end-to-end, each sampling tube unit comprises a tube body, a stop valve and a rack, the lower end of the stop valve is in sealing fixed connection with the upper end of the tube body, the lower end of the tube body and the upper end of the stop valve are provided with matched sealing connection mechanisms, and the top stop valve is provided with a stop valve switching device; the sampling bracket comprises a bottom plate, a longitudinal beam and a guide rail, wherein the longitudinal beam is rotatably installed on the bottom plate; the bottom plate is provided with a first motor which drives the longitudinal beam to rotate; an electric telescoping device is arranged between the guide rail and the longitudinal beam; the guide rail is provided with a gear and a second motor which drives the gear to rotate; the rack can vertically slide along the guide rail and is meshed with the gear. The sampling device has the advantages of high sampling precision, large sampling range, convenience in operation, high automation degree and easiness in carrying and can visually observe an original state of the sample.
Description
Technical field
The present invention relates to sample collecting device technical field, a kind of liquid layered sampler and the method that liquid is carried out Stratified Sampling.
Background technology
In fields such as environmental protection, tap water productions, need water quality is carried out Stratified Sampling and observation.Reaction settling basin in such as field of Environment Protection, demulsifier is utilized to make the oils and fats in waste water separate, precipitation is utilized to make float in waste water be precipitated to bottom, in order to monitor analytical reactions and sedimentation effect, it is accomplished by the waste water in reaction settling basin being sampled and observing, to adjust the parameters such as the demulsifier consumption of reaction settling basin, wastewater flow, flow velocity in time.Traditional liquid layered sampling mode is to use well-bucket to put rope sampling, is i.e. a rope on bucket, bucket sinks to liquid designated depth and is sampled, and this method sampling precision is difficult to ensure that.Authorization Notice No. is that the utility model patent of CN201212861Y discloses a kind of miniature quantitative Stratified Sampling device, although sampling precision is improved, but has the disadvantage in that each layer liquid is needed to extract one by one by (1), operation complexity；(2) for meeting deep layer sampling, it is desirable to the length of sampling mark post is longer, not readily portable and deposit；(3) process of sample drawn and injection sample makes sample can not keep initial condition under water, affects observing effect；(4) cannot sample for distance bank liquid farther out, sampling scope is little；(5) automaticity is low.
Summary of the invention
The invention aims to solve above-mentioned the deficiencies in the prior art, it is provided that a kind of sampling precision is high, sampling scope is big, easy and simple to handle, automaticity is high, be easy to carry about with one and can intuitively observe the liquid layered sampler of sample initial condition.
The technical problem to be solved realizes by the following technical solutions: a kind of liquid layered sampler, including probe tube and sampling support, described probe tube is connected by several probe tube unit head and the tail and forms, described probe tube unit includes body, stop valve and tooth bar, described body is that transparent material is made, the lower end of described stop valve is sealedly and fixedly connected with the upper end of body, the lower end of body and the upper end of stop valve are provided with the sealing connection mechanism of coupling, the stop valve of the top is provided with stop valve switching device, described stop valve switching device is connected with remote control unit, described tooth bar and body be fixing to be connected and to be parallel to body axially arranged, tooth bar Liancheng one root length tooth bar of several probe tubes；Described sampling support includes chassis, longeron and guide rail, described longeron is rotating to be arranged on chassis, the first motor driving longeron to rotate is installed on described chassis, described first motor is connected with remote control unit, being provided with electrical retractor between described guide rail and longeron, described electrical retractor is connected with remote control unit；Being provided with gear on guide rail and drive the second motor of pinion rotation, described second motor is connected with remote control unit, and tooth bar along guide rail vertical sliding motion and can engage with gear.
Technical scheme also has: described electrical retractor includes scissors mechanism and the electric pushrod driving scissors mechanism to stretch, and described electric pushrod is connected with remote control unit.
Technical scheme also has: described stop valve switching device includes the 3rd motor, the 3rd electric machine support, first connecting rod and second connecting rod, described 3rd electric machine support is fixed on the stop valve of the top, described 3rd motor is arranged on the 3rd electric machine support, the output shaft of the 3rd motor is connected with the switch knob of the top stop valve by first connecting rod, second connecting rod, and the 3rd motor is connected with remote control unit.The switch knob composition double rocker mechanism of the 3rd electric machine support, first connecting rod, second connecting rod and the top stop valve, the 3rd electric machine rotation can pull the switch knob of the top stop valve, to switch the top stop valve.
Technical scheme also has: described sealing connection mechanism includes insertion section, elastic clamping arm and unlocks button；Described insertion section is located at the lower end of body and mates with the upper end of stop valve, and the periphery of insertion section is provided with O；Described elastic clamping arm is symmetrically arranged at the both sides of body, one end of elastic clamping arm is fixing with body to be connected, the other end of elastic clamping arm is provided with locking hook, and the both sides, upper end of described stop valve are provided with locking ear, and described locking ear is provided with the lock groove mated with locking hook；Described unblock button be symmetrically arranged on two with elastic push rod, one end of elastic push rod with unlock that button is fixing to be connected, the other end of elastic push rod is fixed with elastic clamping arm and is connected, two elastic push rods composition "eight" shape structures.Using the technical program, can realize quickly connecting and dismounting between probe tube unit on the premise of ensureing sealing, after connection, body and stop valve cannot relatively rotate or mobile.
Technical scheme also has: the front end of described locking hook is provided with inclined-plane.Using the technical program, being not required to being unlocked by pressing button can be connected body lower end with stop valve upper end.
Technical scheme also has: the end of described elastic push rod is provided with draw-in groove, and the inner side of described elastic clamping arm is provided with the fixture block with pocket matches.Use the technical program, it is simple to locking button and the manufacture of elastic clamping arm.
Technical scheme also has: threaded by sealing pipe with the lower end of stop valve in the upper end of described body.
Technical scheme also has: the periphery of described body is provided with along being parallel to its axially arranged graduation mark.
Present invention also offers a kind of method that liquid is carried out Stratified Sampling, comprise the following steps:
A, by several probe tube unit by sealing connection mechanism head and the tail assemble into probe tube, keep the stop valve of each probe tube unit to open；
In B, the probe tube insertion guide rail that will connect, stretched out by remote control unit remote control electric retractor device and remote control longeron rotates, so that probe tube alignment sample point；
C, by remote control unit drive gear rotate, make probe tube transfer to requiring the degree of depth；
D, by remote control unit remote-controlled cut-off valve switching device close the top stop valve；
E, by remote control unit remote control gear rotate, make probe tube leave liquid level；
F, by remote control unit remote control electric retractor device bounce back, the liquid sample in probe tube is observed, is taken pictures；
G, the stop valve of each probe tube unit is closed, probe tube is split as several probe tube unit；
H, the liquid sample in each probe tube unit is respectively implanted in each sample container.
The operation principle of the present invention is to utilize a standard atmosphere pressure energy to support the fluid column that some rice are high.
Relative to prior art, the invention have the benefit that (1) probe tube VTOL, sampling precision is high；(2) disposably each layer liquid can be sampled, easy and simple to handle；(3) probe tube is made up of multiple probe tube unit, in that context it may be convenient to dismounting, it is simple to carry and deposit；(4) sampling process will not be destroyed the initial condition of sample, owing to body is that transparent material is made, therefore can observe intuitively；(5) being sampled by electrical retractor and rotating column remote position, bank of can adjusting the distance, sampling scope is big；(6) automaticity is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of liquid layered sampler.
Fig. 2 is the front view of liquid layered sampler.
Fig. 3 is the partial enlarged drawing in Fig. 2 A portion.
Fig. 4 be Fig. 3 B to structural representation.
Fig. 5 is the structural representation of probe tube unit.
In figure: 1, body, 2, stop valve, 3, tooth bar, 4, chassis, 5, longeron, 6, guide rail, the 7, first motor, 8, gear, 9, the second motor, 10, scissors mechanism, 11, electric pushrod, the 12, the 3rd motor, 13, the 3rd electric machine support, 14, first connecting rod, 15, second connecting rod, 16, insertion section, 17, elastic clamping arm, 18, unlock button, 19, O, 20, locking hook, 21, locking ear, 22, elastic push rod, 23, inclined-plane, 24, fixture block.
Detailed description of the invention
For the technical characterstic of this programme can be clearly described, below according to accompanying drawing, the specific embodiment of the invention is described further.
As it can be seen, a kind of liquid layered sampler, including probe tube and sampling support.
Probe tube is connected by three probe tube unit head and the tail and forms, and probe tube unit includes body 1, stop valve 2 and tooth bar 3, and body 1 is made for transparent material, and the periphery of body 1 is provided with along being parallel to its axially arranged graduation mark (not shown)；Threadeding by sealing pipe with the upper end of body 1 in the lower end of stop valve 2, the lower end of body 1 and the upper end of stop valve 2 are provided with the sealing connection mechanism of coupling, and sealing connection mechanism includes insertion section 16, elastic clamping arm 17 and unlocks button 18；Insertion section 16 is located at the lower end of body 1 and mates with the upper end of stop valve 2, and the periphery of insertion section 16 is provided with O 19；Elastic clamping arm 17 is symmetrically arranged at the both sides of body 1, one end of elastic clamping arm 17 is fixing with body 1 to be connected, the other end of elastic clamping arm 17 is provided with locking hook 20, the front end of locking hook 20 is provided with inclined-plane 23, the both sides, upper end of stop valve 2 are provided with locking ear 21, and locking ear 21 is provided with the lock groove mated with locking hook 20；Unlock button 18 is symmetrically arranged on two with elastic push rod 22, one end of elastic push rod 22 is fixing with unblock button 18 to be connected, the other end of elastic push rod 22 is provided with draw-in groove, the inner side of elastic clamping arm 17 is provided with the fixture block 24 with pocket matches, fixture block 24 is positioned in draw-in groove, and two elastic push rods 22 constitute "eight" shape structure；Tooth bar 3 and body 1 be fixing to be connected and to be parallel to body 1 axially arranged, tooth bar 3 Liancheng one root length tooth bar of three probe tubes.
The stop valve of the top is provided with stop valve switching device, stop valve switching device includes the 3rd motor the 12, the 3rd electric machine support 13, first connecting rod 14 and second connecting rod 15,3rd electric machine support 13 is fixed on the stop valve of the top, 3rd motor 12 is arranged on the 3rd electric machine support 13, the output shaft of the 3rd motor 12 is connected with the switch knob of the top stop valve by first connecting rod 14, second connecting rod 15, and the 3rd motor 12 is connected with remote control unit.
Sampling support includes chassis 4, longeron 5 and guide rail 6, longeron 5 is rotating to be arranged on chassis 4, the first motor 7 driving longeron 5 to rotate is installed on chassis 4, first motor 7 is connected with remote control unit, it is provided with electrical retractor between guide rail 6 and longeron 5, electrical retractor includes scissors mechanism 10 and drives the flexible electric pushrod 11 of scissors mechanism 10, electric pushrod 11 is connected with remote control unit, gear 8 and the second motor 9 driving gear 8 to rotate are installed on guide rail 6, second motor 9 is connected with remote control unit, tooth bar 3 can engage along guide rail 6 vertical sliding motion and with gear 8.
Remote control unit is for controlling first motor the 7, second motor the 9, the 3rd motor 12 and the start and stop of electric pushrod 11 and speed.
Present invention also offers a kind of method that liquid is carried out Stratified Sampling, comprise the following steps:
A, by three probe tube unit by sealing connection mechanism head and the tail assemble into probe tube, keep the stop valve 2 of each probe tube unit to open；
In B, the probe tube insertion guide rail 6 that will connect, stretched out by remote control unit remote control electric retractor device and remote control longeron 5 rotates, make probe tube be directed at sample point；
C, by remote control unit drive gear 8 rotate, make probe tube transfer to requiring the degree of depth；
D, by remote control unit remote-controlled cut-off valve switching device close the top stop valve；
E, rotated by remote control unit remote control gear 8, make probe tube leave liquid level；
F, by remote control unit remote control electric retractor device bounce back, the liquid sample in probe tube is observed, is taken pictures；
G, the stop valve 2 of each probe tube unit is closed, probe tube is split as three probe tube unit；
H, the liquid sample in each probe tube unit is respectively implanted in each sample container.
Above in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the present invention is not limited to above-described embodiment, in the ken that those of ordinary skill in the art are possessed, it is also possible to make a variety of changes on the premise of without departing from present inventive concept.
Claims (9)
1. a liquid layered sampler, it is characterized in that: include probe tube and sampling support, described probe tube is connected by several probe tube unit head and the tail and forms, described probe tube unit includes body (1), stop valve (2) and tooth bar (3), described body (1) is that transparent material is made, the lower end of described stop valve (2) is sealedly and fixedly connected with the upper end of body (1), the lower end of body (1) and the upper end of stop valve (2) are provided with the sealing connection mechanism of coupling, the stop valve of the top is provided with stop valve switching device, described stop valve switching device is connected with remote control unit, described tooth bar (3) and body (1) be fixing to be connected and to be parallel to body (1) axially arranged, tooth bar (3) Liancheng one root length tooth bar of several probe tubes；Described sampling support includes chassis (4), longeron (5) and guide rail (6), described longeron (5) is rotating to be arranged on chassis (4), the first motor (7) driving longeron (5) to rotate is installed on described chassis (4), described first motor (7) is connected with remote control unit, being provided with electrical retractor between described guide rail (6) and longeron (5), described electrical retractor is connected with remote control unit；Being provided with gear (8) on guide rail (6) and drive gear (8) the second motor (9) of rotating, described second motor (9) is connected with remote control unit, and tooth bar (3) can engage along guide rail (6) vertical sliding motion and with gear (8).
2. liquid layered sampler as claimed in claim 1, it is characterised in that: described electrical retractor includes scissors mechanism (10) and the electric pushrod (11) driving scissors mechanism (10) to stretch, and described electric pushrod (11) is connected with remote control unit.
3. liquid layered sampler as claimed in claim 1, it is characterized in that: described stop valve switching device includes the 3rd motor (12), the 3rd electric machine support (13), first connecting rod (14) and second connecting rod (15), described 3rd electric machine support (13) is fixed on the stop valve of the top, described 3rd motor (12) is arranged on the 3rd electric machine support (13), the output shaft of the 3rd motor (12) is connected with the switch knob of the top stop valve by first connecting rod (14), second connecting rod (15), and the 3rd motor (12) is connected with remote control unit.
4. the probe tube as described in claim 1 ~ 3 is arbitrary, it is characterised in that: described sealing connection mechanism includes insertion section (16), elastic clamping arm (17) and unlocks button (18)；Described insertion section (16) is located at the lower end of body (1) and mates with the upper end of stop valve (2), and the periphery of insertion section (16) is provided with O (19)；Described elastic clamping arm (17) is symmetrically arranged at the both sides of body (1), one end of elastic clamping arm (17) is fixing with body (1) to be connected, the other end of elastic clamping arm (17) is provided with locking hook (20), the both sides, upper end of described stop valve (2) are provided with locking ear (21), and described locking ear (21) is provided with the lock groove mated with locking hook (20)；Described unblock button (18) be symmetrically arranged on two with elastic push rod (22), one end of elastic push rod (22) is fixing with unblock button (18) to be connected, the other end of elastic push rod (22) is fixing with elastic clamping arm (17) to be connected, and two elastic push rods (22) constitute "eight" shape structure.
Liquid layered sampler the most according to claim 4, it is characterised in that: the front end of described locking hook (20) is provided with inclined-plane (23).
Liquid layered sampler the most according to claim 4, it is characterised in that: the end of described elastic push rod (22) is provided with draw-in groove, and the inner side of described elastic clamping arm (17) is provided with the fixture block (24) with pocket matches.
7. according to claim 1,2,5,6, arbitrary described liquid layered sampler, it is characterised in that: threaded by sealing to manage with the lower end of stop valve (2) in the upper end of described body (1).
8. according to the arbitrary described liquid layered sampler of claim 1,2,5,6, it is characterised in that: the periphery of described body (1) is provided with along being parallel to its axially arranged graduation mark.
9. method liquid being carried out Stratified Sampling, comprises the following steps:
A, by several probe tube unit by sealing connection mechanism head and the tail assemble into probe tube, keep the stop valve (2) of each probe tube unit to open；
In B, probe tube insertion guide rail (6) that will connect, stretched out by remote control unit remote control electric retractor device and remote control longeron (5) rotates, make probe tube be directed at sample point；
C, by remote control unit drive gear (8) rotate, make probe tube transfer to requiring the degree of depth；
D, by remote control unit remote-controlled cut-off valve switching device close the top stop valve；
E, by remote control unit remote control gear (8) rotate, make probe tube leave liquid level；
F, by remote control unit remote control electric retractor device bounce back, the liquid sample in probe tube is observed, is taken pictures；
G, the stop valve (2) of each probe tube unit is closed, probe tube is split as several probe tube unit；
H, the liquid sample in each probe tube unit is respectively implanted in each sample container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287961.4A CN105890929B (en) | 2016-05-04 | 2016-05-04 | A kind of liquid layered sampler and the method to liquid progress Stratified Sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287961.4A CN105890929B (en) | 2016-05-04 | 2016-05-04 | A kind of liquid layered sampler and the method to liquid progress Stratified Sampling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105890929A true CN105890929A (en) | 2016-08-24 |
| CN105890929B CN105890929B (en) | 2018-07-31 |
Family
ID=56702033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610287961.4A Expired - Fee Related CN105890929B (en) | 2016-05-04 | 2016-05-04 | A kind of liquid layered sampler and the method to liquid progress Stratified Sampling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105890929B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672381A (en) * | 2019-11-14 | 2020-01-10 | 河南工程学院 | Multilayer filters soil pore water collection system |
| CN112362531A (en) * | 2021-01-12 | 2021-02-12 | 潍坊惠米农业科技发展有限公司 | Tea-seed oil purity detection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1521954B1 (en) * | 2002-07-14 | 2008-08-27 | Stiftung Alfred-Wegener-Insitut für Polar- und Meeresforschung | Bed water sampling device |
| JP2013132241A (en) * | 2011-12-26 | 2013-07-08 | Otsuka Pharmaceut Factory Inc | Cell separation device |
| CN203396618U (en) * | 2013-09-11 | 2014-01-15 | 宋云飞 | Liquid layering sampling column |
| CN105067384A (en) * | 2015-07-16 | 2015-11-18 | 哈尔滨师范大学 | Pulling type sampler for research of quality of lake water in different depths |
| CN204964252U (en) * | 2015-09-16 | 2016-01-13 | 武汉中南冶勘资源环境工程有限公司 | Liquid stratified sampling sealing device |
-
2016
- 2016-05-04 CN CN201610287961.4A patent/CN105890929B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1521954B1 (en) * | 2002-07-14 | 2008-08-27 | Stiftung Alfred-Wegener-Insitut für Polar- und Meeresforschung | Bed water sampling device |
| JP2013132241A (en) * | 2011-12-26 | 2013-07-08 | Otsuka Pharmaceut Factory Inc | Cell separation device |
| CN203396618U (en) * | 2013-09-11 | 2014-01-15 | 宋云飞 | Liquid layering sampling column |
| CN105067384A (en) * | 2015-07-16 | 2015-11-18 | 哈尔滨师范大学 | Pulling type sampler for research of quality of lake water in different depths |
| CN204964252U (en) * | 2015-09-16 | 2016-01-13 | 武汉中南冶勘资源环境工程有限公司 | Liquid stratified sampling sealing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672381A (en) * | 2019-11-14 | 2020-01-10 | 河南工程学院 | Multilayer filters soil pore water collection system |
| CN112362531A (en) * | 2021-01-12 | 2021-02-12 | 潍坊惠米农业科技发展有限公司 | Tea-seed oil purity detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105890929B (en) | 2018-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105842011A (en) | Liquid stratified sampling device and stratified sampling method for liquid | |
| CN105758677A (en) | Stratified sampling device for liquid and method for performing stratified sampling on liquid | |
| WO2020220473A1 (en) | Runoff water sample collection device | |
| CN206208581U (en) | Sewage disposal water quality sampling device | |
| CN105890930A (en) | Liquid stratified sampling device and method for carrying out stratified sampling on liquid | |
| CN103130157A (en) | Blood collection tube uncovering and covering all-in-one machine and blood collection tube rack thereof | |
| CN213180899U (en) | Water environment monitoring multilayer depth sampling device | |
| CN116990087B (en) | Water quality monitoring equipment for preventing and treating water environmental pollution | |
| CN105890929A (en) | Liquid stratified sampling device and method for carrying out stratified sampling on liquid | |
| CN212206737U (en) | Sewage source analysis positioner | |
| CN203112452U (en) | Blood sampling pipe cover opening and closing all-in-one machine and blood sampling pipe frame thereof | |
| CN215414464U (en) | A soil drilling equipment for municipal garden engineering | |
| CN210571483U (en) | Town road soil detects sampling device | |
| CN117804825B (en) | Remote control automatic sampling device in paddy field | |
| CN205879604U (en) | Liquid stratified sampling device | |
| CN220231057U (en) | Hydraulic engineering pipeline water sample sampling device | |
| CN218895991U (en) | Cement intelligent analysis sampling platform | |
| CN112857911A (en) | Water resource detects uses sampler | |
| CN209639991U (en) | A kind of soil sampling apparatus | |
| CN116429199A (en) | Outdoor sun-proof protective cover structure of flow measuring instrument | |
| CN208026502U (en) | A kind of Physiological Experiment sampler | |
| CN114166577B (en) | Hydrogeology wetland water body depth-fixing sampler | |
| CN208873347U (en) | A kind of Senior Biology staining reaction instructional device | |
| CN2586964Y (en) | Slide specimen dyeing machine | |
| CN220438332U (en) | Device for detecting soil components |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180731 Termination date: 20210504 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |