CN219348295U - Water quality sampling device - Google Patents
Water quality sampling device Download PDFInfo
- Publication number
- CN219348295U CN219348295U CN202320004850.3U CN202320004850U CN219348295U CN 219348295 U CN219348295 U CN 219348295U CN 202320004850 U CN202320004850 U CN 202320004850U CN 219348295 U CN219348295 U CN 219348295U
- Authority
- CN
- China
- Prior art keywords
- sampling
- water
- assembly
- tube
- cavity
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a water quality sampling device, which comprises: an extension tube having an installation cavity; the sampling tube is arranged on the extension tube, a tube cavity of the sampling tube is communicated with the mounting cavity, and a sampling hole is formed in the sampling tube; the water pumping assembly is arranged at the sampling hole and comprises a water pumping valve so as to open or close the sampling hole through the water pumping valve; the piston assembly is arranged in the mounting cavity in a part of structure and comprises a sealing gasket, and the sealing gasket is movably arranged in the cylinder cavity of the sampling cylinder and is in sealing contact with the cylinder wall of the sampling cylinder; the driving assembly is in driving connection with the piston assembly to drive the sealing gasket to move along the cylinder cavity of the sampling cylinder. The utility model solves the problem that the water sample of the water sampling device in the prior art is easy to be polluted.
Description
Technical Field
The utility model relates to the field of water quality detection, in particular to a water quality sampling device.
Background
Hydraulic engineering is a generic term for various engineering constructions constructed for controlling, utilizing and protecting water resources and environments on the earth surface and underground, and is a construction constructed for eliminating water damage and developing and utilizing water resources.
The hydraulic engineering all need detect the quality of water before carrying out the construction, develop corresponding construction progress and mode according to the difference of quality of water, and different quality of water uses all are different, need carry out careful detection work. Because the water quality of the water surface and the water bottom are different, the water body needs to be adopted for the water surface and the water bottom respectively, but the current detection sampling device is inconvenient to operate when sampling the water of the water bottom, and the water body sample is easy to be polluted in the water bottom.
Disclosure of Invention
The utility model mainly aims to provide a water quality sampling device, which solves the problem that a water sample of the water quality sampling device in the prior art is easy to pollute.
In order to achieve the above object, the present utility model provides a water quality sampling device comprising: an extension tube having an installation cavity; the sampling tube is arranged on the extension tube, a tube cavity of the sampling tube is communicated with the mounting cavity, and a sampling hole is formed in the sampling tube; the water pumping assembly is arranged at the sampling hole and comprises a water pumping valve so as to open or close the sampling hole through the water pumping valve; the piston assembly is arranged in the mounting cavity in a part of structure and comprises a sealing gasket, and the sealing gasket is movably arranged in the cylinder cavity of the sampling cylinder and is in sealing contact with the cylinder wall of the sampling cylinder; the driving assembly is in driving connection with the piston assembly to drive the sealing gasket to move along the cylinder cavity of the sampling cylinder.
Further, the piston assembly further comprises: the support component is connected with the extension tube in a sliding way; the push rod is arranged on the extension pipe, the sealing gasket is arranged on the push rod, and the driving assembly is in driving connection with the supporting component so as to drive the supporting component to slide along the extension pipe.
Further, the drive assembly includes: the transmission nut is in threaded connection with the transmission screw so that the transmission nut moves along the transmission screw under the transmission action of the transmission screw; wherein, the supporting part is connected with the transmission nut.
Further, the supporting part is provided with an avoidance hole, and the transmission screw is inserted into the avoidance hole; and/or the driving assembly comprises a driving motor, and an output shaft of the driving motor is fixedly connected with the transmission screw.
Further, a sliding groove is formed in the inner wall of the installation cavity of the extension pipe, the sliding groove extends along the length direction of the extension pipe, a sliding block is arranged on the supporting component, and the sliding block is slidably arranged in the sliding groove.
Further, the sliding grooves and the sliding blocks are arranged in pairs, the sliding grooves and the sliding blocks are arranged in a plurality of pairs, and the sliding grooves and the sliding blocks are arranged around the supporting part.
Further, the water quality sampling device further comprises: the equipment box comprises a containing cavity and a perforation communicated with the containing cavity, and one end of the extension tube is arranged in the perforation; the battery module is connected with the integrated controller to supply power for the integrated controller; the information processing module of the integrated controller is connected with the remote control terminal through wireless information.
Further, the water quality sampling device further comprises: the mounting frame is arranged in the accommodating cavity, and the driving assembly is mounted on the mounting frame; and/or a traction ring mounted on the top of the equipment box to mount the traction rope through the traction ring.
Further, the water quality sampling device further comprises: the charging socket is arranged on the equipment box and is connected with the battery module, and a sealing groove is formed in the charging socket; the sealing cover can be arranged in a turnover manner, is arranged on the charging socket in a covering manner, and is provided with a sealing ring matched with the sealing groove, so that the sealing ring is inserted into the sealing groove through the turnover of the sealing cover.
Further, the pumping assembly further comprises a pumping pipe, the pumping pipe is arranged at the sampling hole, and the pumping valve is arranged on the pumping pipe; and/or the sampling tube is provided with a graduated scale.
By applying the technical scheme of the utility model, the water quality sampling device comprises an extension tube, a sampling tube, a pumping assembly and a piston assembly, wherein the extension tube is provided with an installation cavity; the sampling tube is arranged on the extension tube, a tube cavity of the sampling tube is communicated with the mounting cavity, and a sampling hole is formed in the sampling tube; the water pumping assembly is arranged at the sampling hole and comprises a water pumping valve, the sampling hole is opened or closed through the water pumping valve, so that a water sample is extracted through the sampling hole, and the water sampling device is integrally taken out of water after the water sampling is completed and the water pumping valve is closed, so that the water sample collected by the water sampling device is prevented from being influenced by water of other heights in the process of taking out the water sampling device, and the water sample collected by the water sampling device is prevented from being polluted easily; the piston assembly is arranged in the mounting cavity, and comprises a sealing gasket which is movably arranged in the cylinder cavity of the sampling cylinder and is in sealing contact with the cylinder wall of the sampling cylinder so as to extract water sample by operating the movement of the sealing gasket of the piston assembly; the driving assembly is in driving connection with the piston assembly to drive the sealing gasket to move along the cylinder cavity of the sampling cylinder, so that the sealing gasket of the piston assembly is driven to move through the driving assembly when water samples at the water bottom are extracted, and therefore, the piston assembly is not required to be manually operated by a person, and the water quality sampling device is convenient to operate.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic view showing the overall structure of an embodiment of a water sampling device according to the present utility model;
FIG. 2 shows a cross-sectional view of an embodiment of a water sampling device according to the present utility model;
fig. 3 shows a top view of an embodiment of a water sampling device according to the present utility model.
Wherein the above figures include the following reference numerals:
10. an extension tube; 100. a mounting cavity; 20. a sampling tube; 200. a sampling hole; 30. a water pumping assembly; 31. a water pumping valve; 40. a piston assembly; 41. a sealing gasket; 50. a drive assembly; 42. a support member; 43. a push rod; 51. a drive screw; 52. a drive nut; 420. avoidance holes; 53. a driving motor; 101. a chute; 421. a slide block; 60. an equipment box; 600. a receiving chamber; 601. perforating; 70. a battery module; 80. an integrated controller; 300. a mounting frame; 400. a traction ring; 401. a traction rope; 500. a charging socket; 501. sealing the groove; 90. sealing cover; 91. a seal ring; 32. a water pumping pipe; 201. a graduated scale.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 to 3, the present utility model provides a water quality sampling device, comprising: an extension tube 10, the extension tube 10 having a mounting cavity 100; the sampling tube 20, the sampling tube 20 is installed on the extension tube 10, the tube cavity of the sampling tube 20 is communicated with the installation cavity 100, and the sampling tube 20 is provided with a sampling hole 200; the pumping assembly 30, the pumping assembly 30 is disposed at the sampling hole 200, the pumping assembly 30 includes a pumping valve 31 to open or close the sampling hole 200 through the pumping valve 31; the piston assembly 40, part of the structure of the piston assembly 40 is arranged in the mounting cavity 100, the piston assembly 40 comprises a sealing gasket 41, and the sealing gasket 41 is movably arranged in the cylinder cavity of the sampling cylinder 20 and is in sealing contact with the cylinder wall of the sampling cylinder 20; the driving assembly 50 is in driving connection with the piston assembly 40 to drive the sealing pad 41 to move along the cylinder cavity of the sampling cylinder 20.
The water quality sampling device comprises an extension tube 10, a sampling tube 20, a pumping assembly 30 and a piston assembly 40, wherein the extension tube 10 is provided with an installation cavity 100; the sampling tube 20 is arranged on the extension tube 10, a tube cavity of the sampling tube 20 is communicated with the installation cavity 100, and a sampling hole 200 is arranged on the sampling tube 20; the water pumping assembly 30 is arranged at the sampling hole 200, the water pumping assembly 30 comprises a water pumping valve 31, the sampling hole 200 is opened or closed through the water pumping valve 31, so that a water sample is extracted through the sampling hole 200, and the water sampling device is integrally taken out of water after the water sample is extracted, so that the water sample collected by the water sampling device is prevented from being influenced by water of other heights in the process of taking out the water sampling device, and the water sample collected by the water sampling device is prevented from being polluted easily; part of the structure of the piston assembly 40 is disposed in the installation cavity 100, the piston assembly 40 includes a sealing pad 41, and the sealing pad 41 is movably disposed in the cylinder cavity of the sampling cylinder 20 and is in sealing contact with the cylinder wall of the sampling cylinder 20, so that the water sample is extracted by operating the movement of the sealing pad of the piston assembly 40; the driving assembly 50 is in driving connection with the piston assembly 40 to drive the sealing gasket 41 to move along the cylinder cavity of the sampling cylinder 20, so that the sealing gasket of the piston assembly 40 is driven to move through the driving assembly 50 when water samples at the water bottom are extracted, and thus, a person does not need to manually operate the piston assembly 40, and the water quality sampling device is convenient to operate.
In the embodiment of the present application, the gasket 41 is made of a soft silicone material; the type of the water pumping valve 31 is S4V210-08.
Specifically, the piston assembly 40 further includes: a support member 42, the support member 42 being slidably coupled to the extension pipe 10; the push rod 43, the push rod 43 sets up on the extension pipe 10, and sealed pad 41 sets up on push rod 43, and drive assembly 50 and support member 42 drive connection are in order to drive support member 42 to slide along extension pipe 10.
In the embodiment of the present application, the support member 42 is a tubular structure.
As shown in fig. 2, the driving assembly 50 includes: a drive screw 51 and a drive nut 52, the drive nut 52 being threadedly connected to the drive screw 51 such that the drive nut 52 moves along the drive screw 51 under the drive of the drive screw 51; wherein the support member 42 is connected to a drive nut 52.
Specifically, the supporting member 42 has a relief hole 420, and the drive screw 51 is inserted into the relief hole 420; and/or the driving assembly 50 comprises a driving motor 53, and an output shaft of the driving motor 53 is fixedly connected with the transmission screw 51.
In the embodiment of the present application, the model number of the driving motor 53 is YE2-112M-4, the rotation speed of the driving motor 53 is 3 circles per minute, and the rotor shaft of the driving motor 53 and the driving screw 51 are welded together.
Specifically, a slide groove 101 is provided on the inner wall of the installation cavity 100 of the extension pipe 10, the slide groove 101 extends in the length direction of the extension pipe 10, a slide block 421 is provided on the support member 42, and the slide block 421 is slidably provided in the slide groove 101, so that the support member 42 is guided by the slide groove 101.
Preferably, the slide grooves 101 and the slide blocks 421 are provided in pairs, and the slide grooves 101 and the slide blocks 421 are provided in plural pairs, and the plural pairs of slide grooves 101 and the slide blocks 421 are arranged around the supporting member 42. In this way, the movement of the support member 42 is made smoother.
Specifically, the water quality sampling device further comprises: an equipment box 60, the equipment box 60 comprising a receiving chamber 600 and a through hole 601 communicating with the receiving chamber 600, one end of the extension pipe 10 being installed in the through hole 601; the battery module 70 and the integrated controller 80, the battery module 70 being connected to the integrated controller 80 to supply power to the integrated controller 80; the information processing module of the integrated controller 80 is connected to the remote control terminal through wireless information.
Specifically, the input end of the water pumping valve 31 is connected with the driving assembly 50 through a wire; the input end of the driving motor 53 is connected with a driving module of the integrated controller 80 through an electric wire, the integrated controller 80 is connected with the water pumping valve 31, so that after the water quality sampling device reaches the depth of a water body to be adopted, the remote control terminal is used for controlling the integrated controller 80 to control the water pumping valve 31 to be opened, and the driving motor 53 of the driving assembly 50 is controlled to rotate, so that a water sample with a preset depth is pumped.
Specifically, the input terminal of the integrated controller 80 is connected to the output terminal of the battery module 70 through a wire. The integrated controller 80 is a single-chip microcomputer, and the model of the single-chip microcomputer is STM32F103T8U6.
In an embodiment of the present application, the water quality sampling device further comprises: the mounting frame 300, the mounting frame 300 is set up in holding the cavity 600, the driving assembly 50 is installed on mounting frame 300; and/or a traction ring 400, the traction ring 400 being installed at the top of the equipment box 60 to install a traction rope 401 through the traction ring 400 to control the depth of the water quality sampling device through the traction rope 401 and pull the water quality sampling device out of the water through the traction rope.
Specifically, the traction ring 400 is welded to the equipment box 60.
Specifically, the water quality sampling device further comprises: the charging socket 500, the charging socket 500 is arranged on the equipment box 60, the charging socket 500 is connected with the battery module 70, and the charging socket 500 is provided with a sealing groove 501 to charge the battery module through an external power supply of the charging socket 500; the sealing cover 90 can be arranged in a turnover manner so as to cover the charging socket 500, and the sealing cover 90 is provided with the sealing ring 91 matched with the sealing groove 501, so that the sealing ring 91 is inserted into the sealing groove 501 by turning over the sealing cover 90, the charging socket 500 is not contacted with water, and the short circuit of the charging socket 500 during the sampling operation of the water quality detection sampling device is avoided.
Specifically, the battery module 70 includes a secondary battery.
In the embodiment of the present application, the charging socket 500 is an injection molded integral piece of the sealing cover 90; the charging socket 500 and the sealing cap 90 are both made of soft silicone materials. The charging socket 500 is welded to the equipment box 60, and the charging socket 500 is disposed corresponding to the battery module 70.
Specifically, the pumping assembly 30 further includes a pumping pipe 32, the pumping pipe 32 is disposed at the sampling hole 200, the pumping valve 31 is mounted on the pumping pipe 32, and the pumping valve 31 is welded with the pumping pipe 32; and/or the sampling tube 20 is provided with a graduated scale 201 to obtain the water quantity of the extracted water sample through the graduated scale 201. Wherein, the scale is stuck on the outer wall surface of the sampling tube by using sealant.
Specifically, the draft tube 32 is welded to the sampling tube 20; wherein the draft tube 32 is welded to the sampling tube 20 seamlessly.
In the concrete implementation process of the embodiment of the application, after the water quality sampling device is thrown into the water body from the river surface by the staff, the sinking depth of the water quality detection sampling device is controlled through the traction rope 401, after the depth of the water body to be adopted is reached, the integrated controller 80 is controlled by using the remote control terminal, after the integrated controller 80 opens the water pumping valve 31, the forward switch of the driving motor 53 is started, the driving motor 53 drives the driving screw 51 to rotate clockwise, the driving screw 52 moves upwards along the extending direction of the driving screw 51, the driving screw 52 pulls the supporting component 42 and the push rod 43 to pull up the sealing gasket 41, thereby the water body sample is pumped into the sampling tube 20 through the water pumping pipe 32, after the pumping is completed, the water pumping valve 31 is closed, the water quality sampling device is pulled out of the water surface upwards through the traction rope 401, thereby completing the sampling operation of the water body, and avoiding the water body sample from being polluted by water layers of other depths in the sampling process.
From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:
the water quality sampling device comprises an extension tube 10, a sampling tube 20, a pumping assembly 30 and a piston assembly 40, wherein the extension tube 10 is provided with an installation cavity 100; the sampling tube 20 is arranged on the extension tube 10, a tube cavity of the sampling tube 20 is communicated with the installation cavity 100, and a sampling hole 200 is arranged on the sampling tube 20; the water pumping assembly 30 is arranged at the sampling hole 200, the water pumping assembly 30 comprises a water pumping valve 31, the sampling hole 200 is opened or closed through the water pumping valve 31, so that a water sample is extracted through the sampling hole 200, and the water sampling device is integrally taken out of water after the water sample is extracted, so that the water sample collected by the water sampling device is prevented from being influenced by water of other heights in the process of taking out the water sampling device, and the water sample collected by the water sampling device is prevented from being polluted easily; part of the structure of the piston assembly 40 is disposed in the installation cavity 100, the piston assembly 40 includes a sealing pad 41, and the sealing pad 41 is movably disposed in the cylinder cavity of the sampling cylinder 20 and is in sealing contact with the cylinder wall of the sampling cylinder 20, so that the water sample is extracted by operating the movement of the sealing pad of the piston assembly 40; the driving assembly 50 is in driving connection with the piston assembly 40 to drive the sealing gasket 41 to move along the cylinder cavity of the sampling cylinder 20, so that the sealing gasket of the piston assembly 40 is driven to move through the driving assembly 50 when water samples at the water bottom are extracted, and thus, a person does not need to manually operate the piston assembly 40, and the water quality sampling device is convenient to operate.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A water sampling device, comprising:
an extension tube (10), the extension tube (10) having a mounting cavity (100);
the sampling tube (20), the sampling tube (20) is installed on the extension tube (10), the tube cavity of the sampling tube (20) is communicated with the installation cavity (100), and the sampling tube (20) is provided with a sampling hole (200);
-a pumping assembly (30), the pumping assembly (30) being arranged at the sampling aperture (200), the pumping assembly (30) comprising a pumping valve (31) to open or close the sampling aperture (200) by means of the pumping valve (31);
-a piston assembly (40), part of the structure of the piston assembly (40) being arranged in the mounting cavity (100), the piston assembly (40) comprising a sealing gasket (41), the sealing gasket (41) being movably arranged in the cartridge cavity of the sampling cartridge (20) and being in sealing contact with the cartridge wall of the sampling cartridge (20);
and the driving assembly (50) is in driving connection with the piston assembly (40) so as to drive the sealing gasket (41) to move along the cylinder cavity of the sampling cylinder (20).
2. The water sampling device according to claim 1, wherein the piston assembly (40) further comprises:
a support member (42), the support member (42) being slidably connected to the extension tube (10);
the push rod (43), push rod (43) set up on extension pipe (10), sealed pad (41) set up on push rod (43), drive assembly (50) with supporting part (42) drive is connected, in order to drive supporting part (42) follow extension pipe (10) slip.
3. The water sampling device according to claim 2, wherein the drive assembly (50) comprises:
a drive screw (51) and a drive nut (52), the drive nut (52) being in threaded connection with the drive screw (51) such that the drive nut (52) moves along the drive screw (51) under the drive of the drive screw (51);
wherein the support member (42) is connected to the drive nut (52).
4. A water sampling device according to claim 3, wherein,
the supporting part (42) is provided with an avoidance hole (420), and the transmission screw (51) is inserted into the avoidance hole (420); and/or
The driving assembly (50) comprises a driving motor (53), and an output shaft of the driving motor (53) is fixedly connected with the transmission screw (51).
5. A water sampling device according to claim 2, wherein,
the sliding groove (101) is formed in the inner wall of the installation cavity (100) of the extension tube (10), the sliding groove (101) extends along the length direction of the extension tube (10), the sliding block (421) is arranged on the supporting component (42), and the sliding block (421) is slidably arranged in the sliding groove (101).
6. The water sampling device according to claim 5, wherein the chute (101) and the slide (421) are arranged in pairs, the chute (101) and the slide (421) being in multiple pairs, the multiple pairs of the chute (101) and the slide (421) being arranged around the support member (42).
7. The water sampling device of any one of claims 1 to 6, further comprising:
an equipment box (60), wherein the equipment box (60) comprises a containing cavity (600) and a perforation (601) communicated with the containing cavity (600), and one end of the extension tube (10) is installed in the perforation (601);
a battery module (70) and an integrated controller (80), the battery module (70) being connected to the integrated controller (80) to power the integrated controller (80); the information processing module of the integrated controller (80) is connected with the remote control terminal through wireless information.
8. The water sampling device of claim 7, further comprising:
-a mounting frame (300), said mounting frame (300) being arranged within said receiving cavity (600), said drive assembly (50) being mounted on said mounting frame (300); and/or
-a traction ring (400), said traction ring (400) being mounted on top of said equipment box (60) for mounting a traction rope (401) through said traction ring (400).
9. The water sampling device of claim 7, further comprising:
the charging socket (500), the charging socket (500) is arranged on the equipment box (60), the charging socket (500) is connected with the battery module (70), and the charging socket (500) is provided with a sealing groove (501);
the sealing cover (90) is arranged in a turnover manner so as to cover the charging socket (500), and the sealing cover (90) is provided with a sealing ring (91) matched with the sealing groove (501) so as to enable the sealing ring (91) to be inserted into the sealing groove (501) by turning over the sealing cover (90).
10. A water sampling device according to any one of claims 1 to 6, wherein,
the pumping assembly (30) further comprises a pumping pipe (32), the pumping pipe (32) is arranged at the sampling hole (200), and the pumping valve (31) is arranged on the pumping pipe (32); and/or
A graduated scale (201) is arranged on the sampling tube (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320004850.3U CN219348295U (en) | 2023-01-03 | 2023-01-03 | Water quality sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320004850.3U CN219348295U (en) | 2023-01-03 | 2023-01-03 | Water quality sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219348295U true CN219348295U (en) | 2023-07-14 |
Family
ID=87101368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320004850.3U Active CN219348295U (en) | 2023-01-03 | 2023-01-03 | Water quality sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219348295U (en) |
-
2023
- 2023-01-03 CN CN202320004850.3U patent/CN219348295U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105484745B (en) | A kind of suction-type sampling device | |
| CN212927807U (en) | Water distributor for oil exploitation | |
| CN104600484B (en) | Novel inserting and drawing guide structure for underground electric connector | |
| CN105422045B (en) | Full electricity production tree system integral electric actuator under water | |
| CN113044192B (en) | Underwater robot generating power by using gravity and buoyancy and working method thereof | |
| CN109356541B (en) | Electric throwing nipple and throwing method | |
| CN219348295U (en) | Water quality sampling device | |
| CN214749077U (en) | Intelligent sampling equipment for water conservancy detection | |
| CN111947991A (en) | Deep water intake monitoring device | |
| CN111980626B (en) | Underground switch for finding water blockage | |
| CN217717049U (en) | Water sampling device | |
| CN211452938U (en) | Sampling device for soil on lower layer of water body bottom mud | |
| CN110318432A (en) | A kind of embedded device and its method for embedding of sensor | |
| CN113340659B (en) | Environment monitoring river silt sampling device | |
| WO2019013676A1 (en) | Drive of a downhole pump | |
| CN212513805U (en) | Liquid sampler | |
| CN111189676B (en) | Water sampling equipment | |
| CN113895597A (en) | Underwater robot | |
| CN109458177B (en) | Umbrella-shaped motor-driven underground intelligent sampler | |
| CN210134467U (en) | Positioning device of amphibious excavator | |
| CN108952646B (en) | Smart well fluid controller | |
| CN209310651U (en) | Shothole pumping gear for deep hole blasting | |
| CN217602895U (en) | Gas anchor device of electric submersible pump | |
| CN111058838A (en) | Intelligent electric formation tester | |
| CN217176563U (en) | Electric setting packer and separate production string thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |