CN207779746U - A kind of water body harvester - Google Patents
A kind of water body harvester Download PDFInfo
- Publication number
- CN207779746U CN207779746U CN201820089216.3U CN201820089216U CN207779746U CN 207779746 U CN207779746 U CN 207779746U CN 201820089216 U CN201820089216 U CN 201820089216U CN 207779746 U CN207779746 U CN 207779746U
- Authority
- CN
- China
- Prior art keywords
- bottle
- acquisition
- water body
- connector
- acquisition bottle
- 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.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 93
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000004457 water analysis Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000005070 sampling Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000012864 cross contamination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model is related to water analysis monitoring technical fields, in particular to a kind of water body harvester, including water body collecting bottle, it is used for the fixed hasp group for acquiring bottle cap including the acquisition bottle cap for acquiring bottle, being connect with acquisition bottle, and set on the bottle mouth position of acquisition bottle;The bottle mouth position of bottle is acquired equipped with the filter screen for filtering water body large granular impurity;One side of acquisition bottle is fixed with a connecting pole;Collecting bottle covers connector that is being arranged through collecting bottle lid equipped with one and being used cooperatively with hasp group;Telescopic component includes the first telescopic rod for being connect with connecting pole, and the second telescopic rod for being connect with connector upper end.
Description
Technical field
The utility model is related to water analysis monitoring technical fields, in particular to a kind of water body harvester.
Background technology
In water analysis monitors experimentation, it is often necessary to acquire water sample to be measured, such as river, river water and lake water.Have
Longitudinally pollution is unevenly distributed in a little water bodys, needs to acquire different depth water sample.
Common water sampler uses penetrating barrel-like structure, when acquiring water sample, during sampler is sunk by the water surface, and water
Enter from the lower part of sampler, flowed out from top, reach sampling depth, retains the water column of residing depth, then draw sampler
Go out the water surface, collects water sample.Existing bottle-type water sample collector starts to intake in target depth, but when water fetching device rises
Sampling bottle can not be made closed, upper water column may cause cross contamination to water sample during upper carry.
It is also a highly important ring in water investigation monitoring that next, which avoids the sampler of water sample from polluting,.Otherwise, if
Institute's water sampling has occurred and that variation without representative or ingredient, is unable to get really and accurately experimental result.Moreover, occurring
Problem can not also find the source of problem.
Utility model content
The purpose of this utility model is to provide a kind of water body harvester, quick to solve assembling, is convenient for carrying, keeps water
The pure technical problem of sample.
What the water body harvester of the utility model was realized in:
A kind of water body harvester, including
Water body collecting bottle, including acquisition bottle, with the acquisition bottle cap that connect of acquisition bottle, and set on the acquisition
Hasp group of the bottle mouth position of bottle for fixed acquisition bottle cap;The bottle mouth position of the acquisition bottle is equipped with for filtering big of water body
The filter screen of grain impurity;One side of the acquisition bottle is fixed with a connecting pole;The collecting bottle is covered runs through institute equipped with one
Connector that is stating acquisition bottle cap setting and being used cooperatively with the hasp group;
Telescopic component includes the first telescopic rod for being connect with the connecting pole, and is used for and the connector
Hold the second telescopic rod of connection.
Further, the connector is located at the part of the collecting bottle side of covering equipped with a upper limit position block;
The part that the connector is located at below the acquisition bottle cap is equipped with a lower position block;And
The bottom that the connector is located at below the acquisition bottle cap is adapted equipped with one and the bottleneck for acquiring bottle
Round connecting plate;
It is that hollow out is arranged in the middle part of the circle connecting plate.
Further, the hasp group includes being set to four junction buttons being evenly arranged around the bottleneck;
The junction button includes the elastic piece for the arc for being placed in the bottleneck and being posted by the bottleneck inner wall, and
The inverted L-type button being placed in outside the bottleneck;The inverted L-type button includes the cross tube being vertically connected and lower montant;
The cross tube is suitable for pushing down on the edge of the top end face of the acquisition bottle cap, and the bottom end of the lower montant passes through
One transverse connecting rod is connected with the elastic piece;The transverse connecting rod passes through the bottleneck side wall;
When the acquisition bottle cap is in the lid conjunction state with acquisition bottle, the circle connecting plate is located under the elastic piece
Side, that is, when pulling the connector, connector moves upwards, and drives round connecting plate to move upwards, compresses the elastic piece, make
It obtains the inverted L-type button to translate outward, discharges the acquisition bottle cap, the acquisition bottle cap is under the drive of connector, upwards
Movement, to open water inlet.
Further, set distance is lifted up suitable for the round connecting plate between the upper limit position block and lower position block
The elastic piece is compressed, the inverted L-type button is made to translate outward.
Further, the transverse connecting rod passes through the bottleneck side-walls to be sealed equipped with fluid sealant.
Further, it is equipped with the first internal thread hole in the connecting pole, first telescopic rod lower end is equipped with and described the
First external thread section of one internal thread hole connection.
Further, the connector upper end is equipped with one section of second external thread section, and the lower end of second telescopic rod is set
It is useful for the second internal thread hole being connect with second external thread section.
Further, the upper end of first telescopic rod and the second telescopic rod is equipped with leader.
Further, the lower end side of the acquisition bottle is equipped with a water outlet, and the water outlet is equipped with sealing cover.
Further, the acquisition bottle body bottom is connected with the clump weight for stablizing the acquisition bottle.
Compared with the existing technology, the utility model embodiment has the advantages that:It is connect with circle using hasp group
Plate is used cooperatively so that acquisition bottle cap keeps being tightly connected with acquisition bottle before acquiring water sample, ensures that the water sample of acquisition is
The water sample acquired is needed, upper and lower water mixing, simple in structure and precision will not be made high;And it is equipped with water outlet on the downside of acquisition bottle
Mouthful, water sample water outlet is convenient;Water outlet can also intake, convenient for the cleaning to filter screen and round connecting plate.
Further, using telescopic component, the water sample of different depth can be acquired, it is simple in structure, coordinate clump weight, it can
To stablize water body collecting bottle, water body collecting bottle is made not turn on one's side in gatherer process;And whole device assembling is simple, is convenient for carrying.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 shows overall schematic when the water body collecting bottle that the utility model embodiment is provided is closed;
Fig. 2 shows the portions the A partial enlarged views that the utility model embodiment is provided;
Fig. 3 shows the entirety in the acquisition bottle cap opening procedure for the water body collecting bottle that the utility model embodiment is provided
Schematic diagram;
Fig. 4 shows the portions the B partial enlarged view that the utility model embodiment is provided;
Fig. 5 shows the whole signal after the acquisition bottle cap opening for the water body collecting bottle that the utility model embodiment is provided
Figure.
In figure:Acquire bottle 100, filter screen 110, connecting pole 120, baffle ring 115, acquisition bottle cap 200, connector 220,
Upper limit position block 221, round connecting plate 223, the second external thread section 224, junction button 310, elastic piece 311, falls at lower position block 222
L-type button 312, transverse connecting rod 313, the first telescopic rod 400, the first external thread section 410, the second telescopic rod 500, the handle set
600, water outlet 710, sealing cover 720, clump weight 800.
Specific implementation mode
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
As shown in Figures 1 to 4, a kind of water body harvester, including water body collecting bottle and telescopic component.
Water body collecting bottle, including acquisition bottle 100, and the acquisition bottle cap 200 that connect of acquisition bottle 100, and set on adopting
Collect hasp group of the bottle mouth position of bottle 100 for fixed acquisition bottle cap 200;The bottle mouth position for acquiring bottle 100 is equipped with for filtering
The filter screen 110 of water body large granular impurity;One side of acquisition bottle 100 is fixed with a connecting pole 120;It acquires on bottle cap 200
Equipped with a connector 220 that is being arranged through collecting bottle lid 200 and being used cooperatively with hasp group.It is equipped with around acquisition bottle cap 200
One circle sealing ring, ensures the sealed environment before water body collecting bottle is acquired.
Telescopic component includes the first telescopic rod 400 for being connect with connecting pole 120, and is used for and connector 220
Hold the second telescopic rod 500 of connection.First telescopic rod 400 highly adjusts consistent with the second telescopic rod 500, can be adjusted to different height
The water sample of degree acquisition different water depth.
Specifically, the part that connector 220 is located at 200 top of acquisition bottle cap is equipped with a upper limit position block 221;Connector 220
Part positioned at 200 lower section of acquisition bottle cap is equipped with a lower position block 222;And connector 220 is located at 200 lower section of acquisition bottle cap
Bottom is equipped with a round connecting plate 223 adaptable with the bottleneck of acquisition bottle 100;223 middle part of round connecting plate is hollow out
Setting.Hollow out setting enters convenient for water body, and can tentatively filter the large-scale impurity in water body.
Preferably, hasp group includes being set to four junction buttons 310 being evenly arranged around bottleneck.Four junction buttons 310 are excellent
Choosing is set as two groups of junction buttons 310 facing each other, i.e., by the junction button 310 being oppositely arranged realize for acquisition bottle cap 200 with
Acquisition bottle 100 interlocks.
With reference to shown in figure 2 and Fig. 4 and Fig. 5, junction button 310 includes being placed in bottleneck and being posted by bottleneck inner wall
The elastic piece 311 of arc, and it is placed in the inverted L-type button 312 outside bottleneck.Wherein, the top end part of elastic piece 311 and bottleneck
There is one section of section, i.e. the top end part of elastic piece 311 does not touch the top end part on the inside of bottleneck and bullet between the top end part of inside
Property piece 311 bottom end and bottom end on the inside of bottleneck between there is one section of section, i.e. the bottom end of elastic piece 311 does not touch bottle
Bottom end on the inside of mouthful.Inverted L-type button 312 includes the cross tube being vertically connected and lower montant.Cross tube is suitable for pushing down acquisition
On the edge of the top end face of bottle cap 200, the bottom end of lower montant is connected by a transverse connecting rod 313 with elastic piece 311;Laterally
Connecting rod 313 passes through bottleneck side wall;The normal condition of elastic piece 311 is the state of arc convex, and the nock of elastic piece 311 is just
To bottleneck madial wall, at this point, two opposite inverted L-type buttons 312 are opposite internal buckle closed state.
When acquisition bottle cap 200 is in the lid conjunction state with acquisition bottle 100, round connecting plate 223 is located under elastic piece 311
In section between the bottom end of elastic piece 311 and the bottom end on the inside of bottleneck of side, that is, when pulling connector 220, connector
220 move upwards, and drive round connecting plate 223 to move upwards, compress elastic piece 311 so that inverted L-type button 312 is flat outward
It moves, release acquisition bottle cap 200, acquisition bottle cap 200 moves upwards, under the drive of connector 220 to open acquisition bottle
100 bottleneck makes water enter in acquisition bottle 100.
Refering to what is shown in Fig. 1, being the present embodiment water body collecting bottle closed state, wherein connector 220 is in nature and vertically puts
It sets, upper limit position block 221 stays between the upper surface of acquisition bottle cap 200, lower position block 222 and the lower face for acquiring bottle cap 200
Have one section of section, round connecting plate 223 is located at the lower section of elastic piece 311 at this time, acquire bottle cap 200 by junction button 310 with adopt
Collect bottle 100 to be tightly connected.
Be used cooperatively using hasp group and round connecting plate 223 so that acquisition bottle cap 200 kept before acquire water sample and
It acquires bottle 100 to be tightly connected, ensures that the water sample of acquisition is the water sample for needing to acquire, water mixing up and down, structure letter will not be made
List and precision height.
Set distance is lifted up compression elasticity suitable for round connecting plate 223 between upper limit position block 221 and lower position block 222
Piece 311 makes inverted L-type button 312 translate outward.
Preferably, transverse connecting rod 313 passes through the bottleneck side-walls to be sealed equipped with fluid sealant.Ensure in water body collecting bottle
Sealed environment.
Preferably, the first internal thread hole is equipped in connecting pole 120,400 lower end of the first telescopic rod is equipped with and the first internal thread
First external thread section 410 of hole connection.To realize being detachably connected for connecting pole 120 and the first telescopic rod 400.
220 upper end of connector is equipped with one section of second external thread section 224, the lower end of the second telescopic rod 500 be equipped with for
Second internal thread hole of the second external thread section 224 connection.To realize being detachably connected for connector 220 and the second telescopic rod 500.
Water body collecting bottle can be unloaded down after sampling, it is easy to use.
The upper end of first telescopic rod 400 and the second telescopic rod 500 is equipped with leader 600.600 convenience of handle of setting
User uses in gatherer process.
The lower end side for acquiring bottle 100 is equipped with a water outlet 710, and water outlet 710 is equipped with sealing cover 720.It is adopting
Collect 100 downside of bottle and be equipped with water outlet 710, water sample water outlet is convenient;Water outlet 710 can also intake, convenient for 110 He of filter screen
The cleaning of round connecting plate 223.Filter screen 110 can ensure the cleaning of sampling water body.
100 bottom of acquisition bottle is connected with the clump weight 800 for stablizing acquisition bottle 100.Coordinate clump weight 800, it can
To stablize water body collecting bottle, water body collecting bottle is made not turn on one's side in gatherer process.
It is 200 opening procedure of acquisition bottle cap of the present embodiment water body collecting bottle, the second telescopic rod with reference to shown in figure 3 and Fig. 5
The 500 band movement connector 220 that is pulled upwardly moves upwards, and round connecting plate 223, which also synchronizes, to move up, on lower position block 222
Moving makes it slowly move up the lower face for withstanding acquisition bottle cap 200.Behind the lower face that lower position block 222 supports acquisition bottle cap 200
To continue during moving up, the end of round connecting plate 223 squeezes elastic piece 311, after elastic piece 311 is extruded, with
The connected transverse connecting rod 313 of elastic piece 311 from the side wall of bottleneck to bottleneck on the outside of be ejected, in transverse connecting rod 313 to bottle
On the outside of mouthful during ejection, inverted L-type button 312 translates outward, so that one group of opposite junction button 310 is inverted
L-type button 312 is opposite to be opened, and bottle cap 200 is acquired with release.Acquire drive of the bottle cap 200 in the lower position block 222 of connector 220
Under move up, leave acquisition bottle 100 bottleneck, make water body enter acquisition bottle 100.And round connecting plate 223 is due to adopting
The backstop action for collecting the circle baffle ring 115 at the top of the bottleneck of bottle 100, in the bottleneck for acquiring bottle 100 always, does not depart from
Acquire bottle 100.In the process, when round connecting plate 223 is moved to the top on the inside of the top end part and bottleneck of elastic piece 311
When one section of section between portion, round connecting plate 223 releases the squeezing action for elastic piece 311.Elastic piece 311 is in elasticity
Under reset response, restore arcuate structure, that is, synchronize, two junction buttons 310 being oppositely arranged restore the opposite state to interlock.
When needing to be closed acquisition bottle cap 200, connector 220 moves downward under the drive of the second telescopic rod 500, the upper limit
Position block 221 slowly moves down the upper surface for making it resist acquisition bottle cap 200, and round connecting plate 223 also moves downward simultaneously, herein mistake
Cheng Zhong, round connecting plate 223 move downward extruding elastic piece 311 again so that inverted L-type button 312 translates outward, opposite
The inverted L-type button 312 of one group of junction button 310 is opposite to be opened, and makes acquisition bottle cap 200 downward under the drive of upper limit position block 221
Movement, when round connecting plate 223 is gradually displaced downwardly in the section between the bottom end on the inside of the bottom end and bottleneck of elastic piece 311
When, round connecting plate 223 releases the squeezing action for elastic piece 311.Elastic piece 311 restores under the reset response of elasticity
Arcuate structure, i.e., synchronous, two junction buttons 310 being oppositely arranged restore the opposite state to interlock, the cross tube of L-type button 312
It is just pressed on the edge of the top end face of acquisition bottle cap 200 so that acquisition bottle cap 200 and acquisition bottle 100 interlock closures, completely cut off
Water body enters in acquisition bottle 100.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected;It can be mechanical connection, can also be electrical connection;It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
It should be noted that:Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
The preferred embodiment that these are only the utility model, is not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of water body harvester, which is characterized in that including
Water body collecting bottle, including acquisition bottle, with the acquisition bottle cap that connect of acquisition bottle, and set on the acquisition bottle
Hasp group of the bottle mouth position for fixed acquisition bottle cap;The bottle mouth position of the acquisition bottle is equipped with miscellaneous for filtering water body bulky grain
The filter screen of matter;One side of the acquisition bottle is fixed with a connecting pole;The collecting bottle, which is covered, to be adopted equipped with one through described
Connector that is that collection bottle cap is arranged and being used cooperatively with the hasp group;
Telescopic component includes the first telescopic rod for being connect with the connecting pole, and for connecting with the connector upper end
The second telescopic rod connect.
2. water body harvester according to claim 1, which is characterized in that the connector is located at the collecting bottle and covers
The part of side is equipped with a upper limit position block;
The part that the connector is located at below the acquisition bottle cap is equipped with a lower position block;And
The connector is located at the bottom below the acquisition bottle cap and is equipped with a circle adaptable with the bottleneck of the acquisition bottle
Shape connecting plate;
It is that hollow out is arranged in the middle part of the circle connecting plate.
3. water body harvester according to claim 2, which is characterized in that the hasp group includes being set to bottleneck week
Enclose four junction buttons being evenly arranged;
The junction button includes being placed in the elastic piece for the arc in the bottleneck and being posted by the bottleneck inner wall, and be placed in
Inverted L-type button outside the bottleneck;The inverted L-type button includes the cross tube being vertically connected and lower montant;
The cross tube is suitable for pushing down on the edge of the top end face of the acquisition bottle cap, and the bottom end of the lower montant passes through a cross
It is connected to connecting rod with the elastic piece;The transverse connecting rod passes through the bottleneck side wall;
When the acquisition bottle cap is in the lid conjunction state with acquisition bottle, the circle connecting plate is located at below the elastic piece,
When pulling the connector, connector moves upwards, and drives round connecting plate to move upwards, compresses the elastic piece so that
The inverted L-type button translates outward, discharges the acquisition bottle cap, and the acquisition bottle cap is transported upwards under the drive of connector
It is dynamic, to open water inlet.
4. water body harvester according to claim 3, which is characterized in that institute between the upper limit position block and lower position block
If distance, which is suitable for the round connecting plate, is lifted up the compression elastic piece, the inverted L-type button is made to translate outward.
5. water body harvester according to claim 4, which is characterized in that the transverse connecting rod passes through the bottleneck side
Fluid sealant is equipped at wall to seal.
6. water body harvester according to claim 5, which is characterized in that be equipped with the first internal thread in the connecting pole
Hole, first telescopic rod lower end are equipped with the first external thread section being connect with first internal thread hole.
7. water body harvester according to claim 6, which is characterized in that the connector upper end is equipped with outside one section second
Thread segment, the lower end of second telescopic rod are equipped with the second internal thread hole for being connect with second external thread section.
8. water body harvester according to claim 1, which is characterized in that first telescopic rod and the second telescopic rod
Upper end is equipped with leader.
9. water body harvester according to claim 1, which is characterized in that the lower end side of the acquisition bottle is equipped with
One water outlet, the water outlet are equipped with sealing cover.
10. water body harvester according to claim 1, which is characterized in that the acquisition bottle body bottom, which is connected with, to be used for
Stablize the clump weight of the acquisition bottle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820089216.3U CN207779746U (en) | 2018-01-16 | 2018-01-16 | A kind of water body harvester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820089216.3U CN207779746U (en) | 2018-01-16 | 2018-01-16 | A kind of water body harvester |
Publications (1)
Publication Number | Publication Date |
---|---|
CN207779746U true CN207779746U (en) | 2018-08-28 |
Family
ID=63213657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201820089216.3U Expired - Fee Related CN207779746U (en) | 2018-01-16 | 2018-01-16 | A kind of water body harvester |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN207779746U (en) |
-
2018
- 2018-01-16 CN CN201820089216.3U patent/CN207779746U/en not_active Expired - Fee Related
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN208505691U (en) | A kind of sampler for food safety detection | |
CN108441412B (en) | Anaerobic collection and crushing device for fecal strain extraction | |
CN204536025U (en) | A kind of disposable sample collection bottle | |
CN111579299A (en) | Swift blood sampling device | |
CN207779746U (en) | A kind of water body harvester | |
CN203502260U (en) | Saliva sampler | |
CN219290654U (en) | Astaxanthin supercritical fluid extraction device | |
CN207832512U (en) | A kind of food inspection sampler | |
CN217980904U (en) | Cell culture base is with safe quick sampler | |
CN206479380U (en) | A kind of mine environment detection gas sampler | |
CN207734170U (en) | A kind of double-deck centrifugation blood sampling casing | |
CN208140447U (en) | A kind of microorganism medicine sample collecting device | |
CN202458388U (en) | Anti-pollution test tube for blood detection | |
CN209102466U (en) | A kind of air monitering gas sampling device | |
CN209770417U (en) | urine collector | |
CN209570385U (en) | A kind of fast sampling detection device of food quality sampling | |
CN208877361U (en) | Tuberculosis patient Portable sputum collection device | |
CN209555225U (en) | For DNA detection sampler | |
CN208596066U (en) | A kind of portable air sampling apparatus | |
CN202801629U (en) | Vacuum blood collection tube | |
CN207675479U (en) | A kind of hand-hold food detection sampler | |
CN205002980U (en) | Biological sample collection ware | |
CN221242932U (en) | Endocrine hydrops sampling device | |
CN220982804U (en) | Powder sample collection device for engineering supervision | |
CN218067261U (en) | Comprehensive atmosphere sampling device for coal mine environment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180828 Termination date: 20200116 |