CN109085020A - A kind of underground water detection device - Google Patents
A kind of underground water detection device Download PDFInfo
- Publication number
- CN109085020A CN109085020A CN201811114516.3A CN201811114516A CN109085020A CN 109085020 A CN109085020 A CN 109085020A CN 201811114516 A CN201811114516 A CN 201811114516A CN 109085020 A CN109085020 A CN 109085020A
- Authority
- CN
- China
- Prior art keywords
- screw
- rotation stop
- turn
- stop key
- sample chamber
- 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
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
Abstract
The present invention relates to a kind of underground water detection devices, defining the screw of position on the lower in two neighboring screw is lower screw, the top screw in position is upper screw, lower screw is rotating position with the lower screw of turn-screw rotation with the lower screw translational shifting translated up along corresponding rotation stop key in turn-screw transmission process and by being detached from the upside of corresponding rotation stop key, there is optical axis section corresponding with upper screw on turn-screw, upper screw has with corresponding rotation stop key rotation stop with the merging upper motionless position of screw corresponding with the optical axis end, lower edge is driven to correspond to the upper screw translational shifting and the upper screw rotation position rotated by being detached from the upside of corresponding rotation stop key with turn-screw that rotation stop key translates up in turn-screw, the upper end of lower screw is provided with the screw lower end on pushing tow and the pushing tow that makes upper screw move up supreme screw translational shifting by the motionless position of upper screw Structure.The present invention provides the underground water detection devices that a kind of sample chamber can save plurality of liquid sample.
Description
Technical field
The present invention relates to the underground water detection devices in field of environmental protection detection.
Background technique
Substantially there are two types of forms for existing water quality detection, the first, is to take experiment after salvaging water sample with container to
Room is detected, there is a problem of poor in timeliness, data reliability difference；Another is ready-made TDLAS technology detection, is to use
Laser is to the lossless of detected medium, real-time sampling and detection technique.
For example the Chinese patent of Publication No. CN106802287B discloses a kind of " water monitoring device and detection method ", it should
Water monitoring device includes shell, and two sections of shell are respectively arranged with front shroud and back shroud, and shell is cylindrical body, long in shell
It spends and is equipped with 6 hollow cavities between two end faces in direction, 6 hollow cavities are parallel to each other, and run through shell, and 6 hollow
Cavity is referred to as, equipment compartment, left side sample chamber, right side sample chamber, left side detection cabin, right side detection cabin and floor detection cabin.
It is respectively provided with a lead screw in left side sample chamber and right side sample chamber, is furnished with nut and waterproof machine on lead screw, by anti-
Hydroelectric machine Electric nut is moved forward and backward along lead screw length direction, the outer diameter of nut and left side sample chamber, right side sample chamber it is interior
Diameter matches, and just similar piston is the same for nut.It is detected in cabin and right side detection cabin in left side and is respectively provided with a laser detection branch
Frame, laser detection bracket are round tube, and two sections in laser detection bracket are respectively equipped with laser emitting module and laser pick-off module.
Single-chip microcontroller and power supply are equipped in equipment compartment, single-chip microcontroller is connected with power supply and takes electricity, equipment compartment and left side sample chamber, the right side
Side sample chamber, left side detection cabin, right side are equipped with housing through-hole between detection cabin, transfer in each housing through-hole equipped with water proof
Head, the waterproof machine respectively detected in laser emitting module and laser pick-off module and each sample cabin in cabin pass through conducting wire respectively
It is connected through water proof adapter with single-chip microcontroller, the power supply in equipment compartment.
In use, being transferred to this water monitoring device in water (such as in well) using rope, aqueous enters detection
In cabin, detects the laser emitting module in cabin and emit laser beam, laser beam is connect after passing through aqueous by corresponding laser pick-off module
It receives, and feeds back to single-chip microcontroller, sampled, amplified by single-chip microcontroller, filtered and constituent analysis and storage.It is abnormal such as to there is detection,
Waterproof machine just will drive nut movement, and the liquid sample that will test region is pumped into corresponding sample chamber, to supervise in water quality
It surveys after device above mentions and obtains fluid sample.Existing this water monitoring device has the following problems: sample chamber can only save one
Kind fluid sample, which limits the use scopes of water monitoring device, cannot achieve multiposition sampling, multiposition to sample
When, it needs frequently to go up water monitoring device and leave the water, operate unusual trouble, in addition can only save a kind of liquid-like
The sample chamber of product is lost itself existing meaning in fact, because strictly can also save certain liquid by detecting cabin
Body sample.
Summary of the invention
The purpose of the present invention is to provide the underground water detection devices that a kind of sample chamber can save plurality of liquid sample.
In order to solve the above technical problems, technical scheme is as follows:
A kind of underground water detection device is provided with and simultaneously including the device housing that length vertically extends in device housing
Detection cabin and the sample chamber of arrangement are arranged, detection cabin is provided with water inlet, and the length for detecting cabin and sample chamber is prolonged along the vertical direction
It stretches, the turn-screw that pivot center vertically extends is rotatably equipped in sample chamber, is equipped with described in driving in sample chamber
The waterproof machine of drive lead screw rotation, is connected at least two outer diameters and the matched silk of sample chamber internal diameter on turn-screw
Mother is provided with the rotation stop key vertically extended corresponding with screw number on the bulkhead of sample chamber, and the periphery of each screw is equal
It is provided with the rotation stop groove for cooperating with corresponding rotation stop key sliding rotation stop, defining the screw of position on the lower in two neighboring screw is
Lower screw, the top screw in position be upper screw, lower screw in turn-screw transmission process have along corresponding rotation stop key to
The lower screw translational shifting of upper translation and the lower screw rotation position rotated by being detached from the upside of corresponding rotation stop key with turn-screw, transmission
There is optical axis section corresponding with upper screw, upper screw has with corresponding rotation stop key rotation stop with merging and the optical axis end on lead screw
The motionless position of corresponding upper screw drives lower edge to correspond to upper screw translational shifting that rotation stop key translates up and by right in turn-screw
It answers and is detached from the upside of rotation stop key and rotates position with the upper screw of turn-screw rotation, the upper end of lower screw is provided with the silk on pushing tow
Female lower end and so that screw is moved up the pushing tow structure of supreme screw translational shifting by the motionless position of upper screw, the downside of each screw is equal
Sample storage chamber is formed, the feed pathway of connection each sample storage chamber and the detection cabin, each feed liquor are provided in device housing
It is provided with feed liquor check valve on channel, is provided in sample chamber for cooperating with the upper screw block in the motionless position of upper screw
With the upper screw Stop structure for preventing upper screw from moving down.
The upper screw Stop structure is the annular protrusion structure being fixed on the sample chamber inner wall, upper screw block knot
The inside of structure, which is formed, passes through space for what the pushing tow structure on lower screw passed through along the vertical direction.
Pushing tow structure is the pushing tow sleeve being coaxially set with drive lead screw being wholely set with lower screw.
It is equipped with gas vent in the cavity wall of each sample storage chamber, is provided with exhaust check valve in each gas vent.
It is coaxially installed with gear wheel on the turn-screw, is coaxially installed on the motor shaft of waterproof machine and the canine tooth
Take turns the pinion gear of engaged transmission.
The invention has the benefit that needing to inspection in use, this underground water detection device is first placed in waters area
When the fluid sample surveyed in cabin saves, waterproof machine drives turn-screw rotation, the screw of lower side under turn-screw drive,
It is translated up along corresponding rotation stop key, the sample storage chamber of lower side, which forms negative pressure, will test the partially liq sample extraction in cabin extremely
In the sample storage chamber of lower side, in case using in the future；As the screw of lower side continues to move up, until screw is moved to
Be detached from the upside of corresponding rotation stop key, during this, the top screw in position is corresponding with the optical axis section of turn-screw, not with driving wire
Thick stick occurs transmission and is in the motionless position of upper screw, and the screw of lower side will rotate with turn-screw and rotate position in lower screw,
The screw of lower side does not continue to move up at this time, and lower side sample storage chamber completes water intaking, and screw leans on position at present for this
On upper screw push up upwards, upper screw can be driven with turn-screw；Then this underground water detection device can be moved to
Next waters such as needs to fetch water to the detection cabin in the region, and turn-screw continues to rotate, and movement just now is repeated, with this
Analogize, a sample chamber can complete the sampling of plurality of liquid sample.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the present of invention；
Fig. 2 is the status diagram that the first sample storage chamber is fetched water in the present invention；
Fig. 3 is the status diagram that the second sample storage chamber is fetched water in the present invention；
Fig. 4 is the cooperation schematic diagram of turn-screw and each screw in Fig. 1；
Fig. 5 is the layout that cabin and sample chamber are detected in the present invention；
Fig. 6 is the structural schematic diagram of screw in Fig. 1；
Fig. 7 is the top view of Fig. 6.
Specific embodiment
A kind of embodiment of underground water detection device: the device housing 20 vertically extended including length, device shell
It is provided with the detection cabin 19 being arranged in juxtaposition, sample chamber 6 and equipment compartment 25 in vivo, detection cabin 19, sample chamber 6 and equipment compartment 19 are
The Cylindrical cabin that length vertically extends, wherein equipment compartment is consistent with the prior art, be provided in equipment compartment single-chip microcontroller and
Power supply, single-chip microcontroller are connected with power supply and take electricity.Detection cabin is provided with water inlet 14 and water outlet 22, detects in cabin and is provided with laser
Water quality testing unit (not shown), laser water quality testing unit belong to the prior art comprising laser emitting module and swash
Optical receiver module.The turn-screw 2 that pivot center vertically extends, the both ends of drive lead screw are rotatably equipped in sample chamber
By 1 rolling assembling of rolling bearing in sample chamber 6, at the same rolling bearing also cooperate with the step surface block on drive lead screw with
Limit drive lead screw axial movement, that is to say, that drive lead screw can only be rotated and cannot be moved axially, and be additionally provided in sample chamber
With the waterproof machine 13 of turn-screw transmission connection, it is installed with pinion gear 12 on the motor shaft of waterproof machine, it is same on turn-screw
Axis is installed with the gear wheel 24 with pinion gear engaged transmission, is provided with waterproof adapter, Laser emission on the bulkhead in each cabin
Module, laser pick-off module and waterproof machine pass through conducting wire respectively and are connected with single-chip microcontroller, the power supply in equipment compartment.
Outer diameter and the matched screw of sample chamber internal diameter, three screws are from top to bottom once there are three connections on turn-screw
First wire nut 3, the second screw 9 and third screw 11 are provided with vertically side corresponding with screw number on the bulkhead of sample chamber
To the rotation stop key of extension, each rotation stop key arranged for interval along the vertical direction, because in the present embodiment there are three screws, rotation stop key
Also there are three, three rotation stop keys are from top to bottom followed successively by the first rotation stop key 21, the second rotation stop key 18 and third rotation stop key 16, each silk
Female periphery is provided with the rotation stop groove 17 cooperated with corresponding rotation stop key sliding rotation stop, and sliding rotation stop cooperation is rotation stop groove and rotation stop
The cooperation of key rotation stop, while screw can also be slidable in the vertical direction with respect to rotation stop key.Define in two neighboring screw position on the lower
Screw be lower screw, the top screw in position be upper screw, lower screw in turn-screw transmission process have along corresponding
The lower screw translational shifting and turned by being detached from the upside of corresponding rotation stop key with the lower screw of drive lead screw rotation that rotation stop key translates up
Dynamic position.Drive lead screw have optical axis section 23 corresponding with upper screw, upper screw have with corresponding rotation stop key rotation stop with merge and
The motionless position of the corresponding upper screw of optical axis section drives lower edge to correspond to the upper screw translational shifting that rotation stop key translates up in drive lead screw
Position is rotated with the upper screw of drive lead screw rotation with by being detached from the upside of corresponding rotation stop key.Be provided in sample chamber for be in
The upper screw Stop structure 4 that the upper screw block of the upper motionless position of screw cooperates to prevent upper screw from moving down, upper screw block
Structure is the annular protrusion structure being fixed on the sample chamber inner wall.The upper end of lower screw is provided on pushing tow under screw
The pushing tow structure 7 held and screw is made to move up supreme screw translational shifting by the motionless position of upper screw, upper screw Stop structure
Inside formed for the pushing tow structure on lower screw pass through along the vertical direction by space 5, pushing tow structure is and lower screw one
The pushing tow sleeve being coaxially set with drive lead screw being arranged.Sample storage chamber is respectively formed on the downside of each screw, in device housing
It is provided with the feed pathway 15 of connection each sample storage chamber and the detection cabin, it is unidirectional to be provided with feed liquor in each feed pathway
Valve is equipped with gas vent 10 in the cavity wall of each sample storage chamber, is provided with exhaust check valve in each gas vent.
This underground water detection device use process is as follows: this underground water detection device transferred to by rope detected
The designated depth in waters, water enter detection cabin, by laser emitting module project laser, laser pick-off module receive laser come
Aqueous is detected, if it find that waterproof machine drives drive lead screw rotation if the problematic further depth detection of needs of water quality,
The top first wire nut in position and the second screw are in the motionless position of screw at this time, that is to say, that first wire nut, the second screw
It is corresponding with the optical axis section on turn-screw that without generating transmission with drive lead screw, first wire nut and the first rotation stop key cooperate,
Second screw and the second rotation stop key cooperate, although drive lead screw rotates, first wire nut and the second screw are not rotated.But
Third screw in position most on the lower but under the drive of drive lead screw, is translated up along the first rotation stop key, that is, enters lower silk
The movement of female translational shifting, each screw are made of copper product, antirust and can match with the excellent sealing of sample chamber bulkhead
It closes.The upward translation of third screw is just as piston, so that the sample storage chamber on the downside of third screw forms subnormal ambient, it will
Liquid in detection cabin is pumped into the sample storage chamber on the downside of third screw, with persistently moving up for third screw, third silk
The pushing tow sleeve of female upper end from bottom to top be threaded through space, the second screw is pushed up upwards, the second screw starts and driving wire
Being threadedly engaged on thick stick, at this point, the height of the second screw is less than the height of the feed pathway of corresponding position, that is to say, that when upper silk
For mother by lower screw pushing tow and when cooperating with the thread contact of turn-screw, the height of upper screw is less than the feed pathway of corresponding position
Height, this be in order to avoid aqueous enters in the sample storage chamber on the downside of the second screw at this time, although the second screw occur
Axial displacement, but the aqueous of this position at first can't enter on the downside of the second screw, first wire nut and first rotation stop
Key is detached from, and the sealing copper packing 8 of the upper end of first wire nut is withstood on the end face of annular protrusion structure, guarantees first wire nut opposed annular
In bulge-structure rotation process, sealing relationship between the two, using sealing copper between first wire nut and annular protrusion structure
This metal gasket sealing is padded, the sealing relationship between the two had both been ensure that, and had also ensured and do not had between the two too greatly
Frictional force, since first wire nut and the first rotation stop key are detached from, if subsequent turn-screw continues to rotate, first wire nut is only
It is to be rotated with drive lead screw, and cannot move up and down, this on screw rod like a nut has been filled, and nut is in no power limit
When, screw rod is rotated, by the effect of screw thread resistance between screw rod and nut, nut can only be rotated together with screw rod.This is just completed
The water intaking of position at one.Then underground water detection device is moved into other positions and carries out water quality detection, such as also taken
Water operation, only need to continue to rotate drive lead screw, due to the second screw at this time with being threadedly engaged on drive lead screw,
Second screw can be moved up along the second rotation stop key, complete the water operation of sample storage chamber on the downside of the second screw.
It is provided with the gas vent of exhaust check valve, ensure that the gas of counter sample storage chamber can be smoothly discharged, in this way
Screw can reduce the demand to waterproof machine power there is no need to compressed gas acting, in other embodiments of the invention,
Gas vent can not also be set；Equipment compartment can not also be set, and equipment can be set on well at this time, be swashed by cable with corresponding
Optical transmitter module is connected with laser pick-off module, and waterproof machine then can be with autogamy power supply；The number of screw can also be according to need
It is configured, such as two, four or more.
Claims (5)
1. a kind of underground water detection device, including the device housing that length vertically extends, be provided in device housing and
The detection cabin being arranged in juxtaposition and sample chamber, detection cabin are provided with water inlet, detect the length of cabin and sample chamber along the vertical direction
Extend, it is characterised in that: be rotatably equipped with the turn-screw that pivot center vertically extends in sample chamber, pacify in sample chamber
Equipped with the waterproof machine for driving the drive lead screw rotation, it is connected at least two outer diameters and the sample chamber on turn-screw
Diameter matched screw is provided with the rotation stop key vertically extended corresponding with screw number, each silk on the bulkhead of sample chamber
Female periphery is provided with the rotation stop groove for cooperating with corresponding rotation stop key sliding rotation stop, defines position in two neighboring screw and leans on
Under screw be lower screw, the top screw in position be upper screw, lower screw in turn-screw transmission process have along right
Answer the lower screw translational shifting and the lower screw rotated by being detached from the upside of corresponding rotation stop key with turn-screw that rotation stop key translates up
Position is rotated, there is optical axis section corresponding with upper screw on turn-screw, upper screw has with corresponding rotation stop key rotation stop with merging
The motionless position of corresponding with the optical axis end upper screw, the upper screw for driving the corresponding rotation stop key of lower edge to translate up in turn-screw
Translational shifting and the upper screw rotation position rotated by being detached from the upside of corresponding rotation stop key with turn-screw, the upper end of lower screw is provided with
The screw lower end on pushing tow and so that upper screw is moved up the pushing tow structure of supreme screw translational shifting by the motionless position of upper screw, respectively
It is respectively formed sample storage chamber on the downside of screw, the feed liquor of connection each sample storage chamber and the detection cabin is provided in device housing
Channel is provided with feed liquor check valve in each feed pathway, be provided in sample chamber for in the motionless position of upper screw
The upper screw Stop structure that screw block cooperates to prevent upper screw from moving down.
2. underground water detection device according to claim 1, it is characterised in that: the upper screw Stop structure is to be fixed on
The inside of annular protrusion structure on the sample chamber inner wall, upper screw Stop structure is formed for the pushing tow structure edge on lower screw
What up and down direction passed through passes through space.
3. underground water detection device according to claim 2, it is characterised in that: pushing tow structure is to be wholely set with lower screw
The pushing tow sleeve being coaxially set with drive lead screw.
4. underground water detection device according to claim 1, it is characterised in that: be equipped in the cavity wall of each sample storage chamber
Gas vent is provided with exhaust check valve in each gas vent.
5. underground water detection device according to claim 1, it is characterised in that: be coaxially installed on the turn-screw big
Gear is coaxially installed with the pinion gear with the gear wheel engaged transmission on the motor shaft of waterproof machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811114516.3A CN109085020B (en) | 2018-09-25 | 2018-09-25 | Underground water detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811114516.3A CN109085020B (en) | 2018-09-25 | 2018-09-25 | Underground water detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109085020A true CN109085020A (en) | 2018-12-25 |
| CN109085020B CN109085020B (en) | 2020-10-13 |
Family
ID=64842235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811114516.3A Active CN109085020B (en) | 2018-09-25 | 2018-09-25 | Underground water detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109085020B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112649110A (en) * | 2021-01-15 | 2021-04-13 | 肖航 | Underground water body quality detection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110060694A (en) * | 2009-11-30 | 2011-06-08 | 한국지질자원연구원 | Picking apparatus of underground water or co2 and system include thereof |
| CN102175492A (en) * | 2011-01-18 | 2011-09-07 | 中国科学院广州地球化学研究所 | Multi-stage deposit pore water sampler |
| CN202676510U (en) * | 2012-07-27 | 2013-01-16 | 内蒙古师范大学 | Flow regime controllable water sampler |
| CN106802287A (en) * | 2017-01-17 | 2017-06-06 | 谢锦宸 | Water monitoring device and detection method |
| CN106908277A (en) * | 2017-03-07 | 2017-06-30 | 林方杰 | Water body sample Multi-layer technology device |
| CN206832524U (en) * | 2017-06-23 | 2018-01-02 | 中材地质工程勘查研究院有限公司 | A kind of telescopic multilayer water sampler |
| CN207263488U (en) * | 2017-09-17 | 2018-04-20 | 常河 | A kind of mining geology flow of water is layered collector |
-
2018
- 2018-09-25 CN CN201811114516.3A patent/CN109085020B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110060694A (en) * | 2009-11-30 | 2011-06-08 | 한국지질자원연구원 | Picking apparatus of underground water or co2 and system include thereof |
| CN102175492A (en) * | 2011-01-18 | 2011-09-07 | 中国科学院广州地球化学研究所 | Multi-stage deposit pore water sampler |
| CN202676510U (en) * | 2012-07-27 | 2013-01-16 | 内蒙古师范大学 | Flow regime controllable water sampler |
| CN106802287A (en) * | 2017-01-17 | 2017-06-06 | 谢锦宸 | Water monitoring device and detection method |
| CN106908277A (en) * | 2017-03-07 | 2017-06-30 | 林方杰 | Water body sample Multi-layer technology device |
| CN206832524U (en) * | 2017-06-23 | 2018-01-02 | 中材地质工程勘查研究院有限公司 | A kind of telescopic multilayer water sampler |
| CN207263488U (en) * | 2017-09-17 | 2018-04-20 | 常河 | A kind of mining geology flow of water is layered collector |
Non-Patent Citations (1)
| Title |
|---|
| 杨瑞: "基于HYDRUS-1D模型的水稻田水分运移及氮素流失特性分析", 《中国优秀硕士学位论文全文数据库·工程科技Ⅰ辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112649110A (en) * | 2021-01-15 | 2021-04-13 | 肖航 | Underground water body quality detection device |
| CN112649110B (en) * | 2021-01-15 | 2023-08-15 | 重庆国环绿源科技有限公司 | Groundwater water quality detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109085020B (en) | 2020-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108844732B (en) | Detection equipment for polyethylene ball valves | |
| US10494922B2 (en) | Integrated apparatus for precisely and synchronously controlling amounts of discharged hydraulic oil and fluid using motor | |
| CN106593803B (en) | A kind of constant pressure constant speed pump | |
| CN109085020A (en) | A kind of underground water detection device | |
| CN110208029B (en) | Pressure-maintaining and transferring deep-well sediment pressure-maintaining sampling device | |
| CN103147722A (en) | Underground remote control sliding sleeve opening or closing device | |
| CN115597792B (en) | Syringe performance detection device | |
| CN111811948B (en) | Water meter detection device | |
| CN108488140A (en) | A kind of inbuilt displacement sensor formula oil cylinder | |
| CN114518260B (en) | Oilfield crude oil sampler adopting constant pressure | |
| CN210005299U (en) | Water sample collection system for underwater robots | |
| CN106571716A (en) | Underwater electric linear cylinder mechanism with position feedback function | |
| CN103616143B (en) | A kind of cylindrical electrical core air-tightness detection device | |
| CN106640019B (en) | Fracturing work simulates real-time monitoring system and its analog detection method | |
| CN206246361U (en) | A kind of Twin-screw vacuum pump | |
| CN116337335A (en) | O-shaped ring sealing performance testing device under high-pressure hydrogen environment | |
| CN206539464U (en) | A kind of novel constant-pressure constant speed pump | |
| CN205406103U (en) | Reactor pressure vessel ann annotates pipe automated inspection positioning drive device | |
| CN206235435U (en) | A kind of dynamic sealing performance detection means of seal assembly | |
| CN204882152U (en) | Electrodynamic type polymer solution sample extractor | |
| CN105031773B (en) | Double end continuous sampling device | |
| CN106935289A (en) | A kind of reactor pressure vessel peace note pipe is automatic to check positioning drive unit | |
| CN207488181U (en) | Underground sampling Detection device | |
| CN207662613U (en) | Displaced type deep-sea movable component test device | |
| CN205055071U (en) | Continuous injector of double -end |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |