CN110763516A - Annular sampler - Google Patents

Annular sampler Download PDF

Info

Publication number
CN110763516A
CN110763516A CN201911019762.5A CN201911019762A CN110763516A CN 110763516 A CN110763516 A CN 110763516A CN 201911019762 A CN201911019762 A CN 201911019762A CN 110763516 A CN110763516 A CN 110763516A
Authority
CN
China
Prior art keywords
slip ring
shaft
conductive slip
ring
waterproof
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.)
Pending
Application number
CN201911019762.5A
Other languages
Chinese (zh)
Inventor
刘金山
姜松燕
游巍亭
连明涛
刘炳新
鲁冠华
张含明
汤欣钢
连蔚
郑仕强
赵敬瑛
张长军
陈丰仓
赵伟
鲍瑞雪
胡丽娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Huize Ecological Technology Co Ltd
Original Assignee
Shandong Huize Ecological Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shandong Huize Ecological Technology Co Ltd filed Critical Shandong Huize Ecological Technology Co Ltd
Priority to CN201911019762.5A priority Critical patent/CN110763516A/en
Publication of CN110763516A publication Critical patent/CN110763516A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • G01N2001/1006Dispersed solids
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • G01N2001/1006Dispersed solids
    • G01N2001/1012Suspensions
    • G01N2001/1025Liquid suspensions; Slurries; Mud; Sludge
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • G01N2001/1031Sampling from special places

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention discloses an annular sampler, comprising: the device comprises a plurality of horizontal samplers, a fixed disc, a central shaft, a wireless receiver and an electromagnet control device, wherein the horizontal samplers are annularly distributed and installed on the fixed disc; the wireless receiver and the electromagnet control device are used for receiving the cabin door switch control signal and controlling the electromagnet and the switch mechanism thereof to close the cabin door. According to the invention, the plurality of horizontal samplers are arranged on the fixed disc in an annular distribution manner, so that the volume is smaller, the structure is more compact, and the lifting and sampling are convenient; the fixed disk can avoid the winding of pasture and water through rotatory mode, is favorable to moving as a whole and hoist and mount. The waterproof conductive slip ring assembly is mounted on the fixed disc, so that signal lines are prevented from being wound, and the stability of signal transmission is ensured.

Description

Annular sampler
Technical Field
The invention relates to the technical field of hydrological detection equipment, in particular to an annular sampler.
Background
At present, the traditional sediment sampling method for hydrological detection is a handheld suspension rod type sampler, and the method is difficult to operate under the condition of deep water and high sediment-containing water flow, low in working efficiency and high in danger coefficient. Especially, be not applicable to many plumbs of cableway, the multiple spot depth of water, reciprocal sampling many times, it is inefficient, traditional silt adoption mode can not adapt to the demand of river course multiple spot deep water silt sampling yet.
In order to solve the above problems, the applicant disclosed in the invention patent application No. 201811360676.6 a cableway multi-point remote control horizontal sampler, which uses a plurality of horizontal samplers to sample silt simultaneously through a hoisting frame.
Disclosure of Invention
The invention aims to provide a ring sampler with small volume and simple structure.
In order to solve the technical problems, the technical scheme of the invention is as follows: a ring sampler comprising:
the horizontal samplers comprise sampling cabins, cabin doors are arranged at two ends of each sampling cabin, pressing rods are mounted on the cabin doors, a hanging frame is arranged at the top of each sampling cabin, electromagnets and a switching mechanism of the electromagnets are mounted on the hanging frames and used for controlling the opening and the closing of the cabin doors, and a first connecting part is arranged at the top end of each hanging frame;
the fixed disc is provided with a plurality of second connecting parts in an annular distribution manner, and the first connecting parts are fixedly connected with the second connecting parts through fastening pieces;
the central hole is formed in the center of the fixed disc, the central shaft is installed in the central hole, and hoisting holes facilitating hoisting of other parts are formed in two ends of the central shaft;
and the wireless receiver and the electromagnet control device are used for receiving the cabin door switch control signal and controlling the electromagnet and the switch mechanism thereof to close the cabin door.
As a preferred technical scheme, a shaft sleeve is sleeved on the upper part of the central shaft, and a bearing is arranged between the shaft sleeve and the fixed disc; the waterproof conductive slip ring assembly is sleeved at the lower part of the central shaft, a conductive slip ring is arranged in the waterproof conductive slip ring assembly, and a boss for separating the shaft sleeve from the waterproof conductive slip ring assembly is arranged in the middle of the central shaft;
the antenna device is characterized in that a signal line channel is arranged in the central shaft along the axial direction, threading holes are formed in the signal line channel and the waterproof conductive slip ring assembly, and the conductive slip ring is used for conductively connecting the antenna device and the wireless receiver through a signal line.
As a preferred technical solution, the waterproof conductive slip ring assembly includes an inner nylon fixing ring and an outer nylon slip ring, an installation cavity is provided between the inner nylon fixing ring and the outer nylon slip ring, the inner nylon fixing ring is fixedly installed at the outer side of the central shaft, the outer nylon slip ring is rotatably installed at the outer side of the inner nylon fixing ring, the conductive slip ring is located in the installation cavity and is fixedly installed on the inner nylon fixing ring, a signal line connected with the antenna device passes through a signal line channel to be fixedly connected with the conductive slip ring, and a signal line electrically connected with the wireless receiver is slidably connected to the conductive slip ring.
As a preferred technical scheme, the electromagnet comprises a shell, an electromagnetic coil and a movable iron core, wherein the electromagnetic coil is arranged in the shell, a sliding bin convenient for the movable iron core to move up and down is arranged in the shell, and the electromagnetic coil is positioned on the outer side of the sliding bin; a guide rod penetrates through the movable iron core, and the bottom end of the guide rod extends out of the sliding bin to be connected with the switch mechanism.
As a preferred technical scheme, a waterproof sealing ring is arranged between the shell and the movable iron core.
Preferably, the top end of the guide rod extends out of the sliding bin and is in threaded connection with an adjusting nut for adjusting the downward extension length of the guide rod.
As a preferable technical scheme, a waterproof shell which is connected with the shell in a sealing mode is arranged on the outer side of the top end of the guide rod.
As a preferred technical solution, the switch mechanism includes;
the bottom of the electromagnet is connected to the connecting shaft, and the hanging bracket is provided with an adjusting hole which is convenient for the connecting shaft to move up and down;
the hanging bracket is provided with two hinge shafts respectively connected with the buckling covers, the top ends of the buckling covers are hinged to the hinge shafts, a torsion spring is arranged between each hinge shaft and the corresponding buckling cover, the bottom of each buckling cover is provided with an installation shaft, and the installation shaft is sleeved with a roller for pressing the compression bar;
and one ends of the two connecting pieces are hinged with the connecting shaft, and the other ends of the two connecting pieces are hinged to the mounting shaft.
As a preferable technical scheme, two baffle plates opposite to the buckle cover are arranged on the hanging bracket, and the buckle cover is positioned on the inner side of the baffle plate.
By adopting the technical scheme, the invention has the beneficial effects that: the invention adopts the mode of annular distribution to install a plurality of horizontal samplers on the fixed disc through the fixed disc to form the annular sampler.
According to the invention, multi-point sampling is carried out by annularly distributing a plurality of horizontal samplers on the fixed disk, and the fixed disk can avoid winding of aquatic weeds in a rotating manner, so that integral movement and lifting are facilitated.
In order to solve the problem that the signal wire is wound in the rotating process of the fixed disc, the waterproof conductive slip ring assembly is arranged on the central shaft, so that the signal wire is prevented from being wound, and the stability of signal transmission is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic structural view at a bottom view of an embodiment of the present invention;
FIG. 3 is a schematic structural view of the fixing plate of FIG. 1;
FIG. 4 is an internal cross-sectional view of the holding pan of FIG. 1;
FIG. 5 is a schematic diagram of a horizontal sampler;
FIG. 6 is a schematic side view of a horizontal sampler;
fig. 7 is a schematic view of the electromagnet of fig. 5.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
As shown in fig. 1 to 7, a ring sampler includes:
a plurality of horizontal samplers 1, horizontal sampler include sample cabin 10, and the both ends of sample cabin 10 are equipped with hatch door 11, install depression bar 12 on the hatch door 11, and the top of sample cabin 10 is equipped with gallows 13, installs the electro-magnet 14 that is used for controlling hatch door 11 switch and its on-off mechanism on the gallows 13, and the top of gallows 13 is equipped with first connecting portion 131.
The fixed disk 2, it has a plurality of second connecting portion 21 to be the annular distribution on the fixed disk 2, and first connecting portion 131 passes through fastening piece and second connecting portion 21 fixed connection.
The center shaft 3, the central point of fixed disk 2 puts and is equipped with the centre bore, and center shaft 3 installs in the centre bore, and the both ends of center shaft 3 are equipped with the hole for hoist 31 of other parts of being convenient for hoist.
The invention discloses a wireless receiver and electromagnet control device (not shown in the figure) for receiving a hatch door switch control signal and controlling an electromagnet and a switch mechanism thereof to close a hatch door, a circuit schematic diagram of the wireless receiver and electromagnet control device and a circuit schematic diagram of a wireless transmitter are disclosed in the invention patent application with the application number 201811360676.6, and an electrical control part is not creatively improved in the invention, so that the wireless transmitter, the wireless receiver and the electromagnet control device of a sampler are not described in detail.
In order to avoid winding of the aquatic weeds so as to be convenient to move, the fixed disc 2 can rotate, a shaft sleeve 31 is sleeved on the upper part of the central shaft 3, and a bearing 32 is arranged between the shaft sleeve 31 and the fixed disc 2; the lower part cover of center pin 3 is equipped with waterproof electrically conductive slip ring subassembly, and waterproof electrically conductive slip ring subassembly is inside to be equipped with electrically conductive sliding ring 4, and the middle part of center pin 3 is equipped with boss 301 with axle sleeve 31 and waterproof electrically conductive slip ring subassembly is separated.
The inside signal line passageway 302 that sets up along the axial that is equipped with of center pin 3, be equipped with through wires hole 303 on the signal line passageway 302, also be equipped with through wires hole (not shown in the figure) on the waterproof conductive slip ring subassembly, conductive slip ring 4 passes through the signal line and is connected antenna device and wireless receiver electricity conduction, conductive slip ring 4 avoids the signal line winding phenomenon to appear in the rotatory in-process of fixed disk 2, causes the signal transmission quality poor to and the unstable scheduling problem of line connection.
In this embodiment, the antenna device may be a wire rope suspended above the central shaft 3, and the signal line is connected to the wire rope.
Waterproof conductive slip ring subassembly includes solid fixed ring 41 of interior nylon and outer nylon sliding ring 42, installation cavity 43 has between the two, the solid fixed ring 41 fixed mounting in the outside of center pin 3 of interior nylon, outer nylon sliding ring 42 rotates the outside of the solid fixed ring 41 of interior nylon of installation, conductive sliding ring 4 is located the installation cavity 43 and fixed mounting on the solid fixed ring 41 of interior nylon, the signal line of being connected with antenna device passes signal line passageway 302 and conductive sliding ring 4 fixed connection, the signal line of being connected with the radio receiver passes through conductive joint sliding connection to conductive sliding ring 4 on.
The electromagnet 14 comprises a shell 141, an electromagnetic coil 142 and a movable iron core 143, the electromagnetic coil 142 is installed in the shell 141, a sliding bin 144 which is convenient for the movable iron core 143 to move up and down is arranged in the shell 141, and the electromagnetic coil 142 is positioned outside the sliding bin 144; a guide rod 145 penetrates through the movable iron core 143, and the bottom end of the guide rod 145 extends out of the sliding bin 144 to be connected with the switch mechanism.
A waterproof sealing ring 146 is arranged between the shell 141 and the movable iron core 143.
The top end of the guide rod 145 extends out of the sliding chamber 144 and is threadedly coupled with an adjusting nut 147 for adjusting the downward extension length of the guide rod 145.
The top outer side of the guide rod 145 is provided with a waterproof case 148 hermetically connected with the case 141.
The switch mechanism includes;
the bottom of the electromagnet 14 is connected to the connecting shaft 151, and the hanger 13 is provided with an adjusting hole 132 which is convenient for the connecting shaft 151 to move up and down;
two buckle covers 152 that are symmetrically arranged, the hanger 13 is provided with two hinge shafts 153 that are respectively connected with the buckle covers 152, the top ends of the buckle covers 152 are hinged on the hinge shafts 153, a torsion spring (not shown in the figure) is installed between the hinge shafts 153 and the buckle covers 152, the torsion spring is a common standard component in the prior art, the functions and the installation mode of the torsion spring belong to the prior art, and those skilled in the art can understand that the assembly and the connection of the torsion spring, the hinge shafts 153 and the buckle covers 152 are not described herein again.
The bottom of the buckle cover 152 is provided with a mounting shaft 154, and a roller 155 for pressing the pressing rod 12 is sleeved on the mounting shaft 154.
Two symmetrically arranged connecting pieces 156, one end of each connecting piece 156 is hinged with the connecting shaft 151, and the other end is hinged with the mounting shaft 154.
Two baffle plates 133 opposite to the buckle cover 152 are arranged on the hanging bracket 13, and the buckle cover 152 is positioned on the inner side of the baffle plates 133.
In this embodiment, before the ring sampler is launched, the pressing rod 12 is manually pressed under the roller 155 to open the hatch 11 of the horizontal sampler 1, and after the electromagnet 14 receives a signal to close the hatch, the movable iron core 143 moves downwards to open the two connecting pieces 156 outwards, so that the pressing rod 12 is released and the hatch 11 is closed.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.

Claims (9)

1. An annular sampler, comprising:
the horizontal samplers comprise sampling cabins, cabin doors are arranged at two ends of each sampling cabin, pressing rods are mounted on the cabin doors, a hanging frame is arranged at the top of each sampling cabin, electromagnets and a switching mechanism of the electromagnets are mounted on the hanging frames and used for controlling the opening and the closing of the cabin doors, and a first connecting part is arranged at the top end of each hanging frame;
the fixed disc is provided with a plurality of second connecting parts in an annular distribution manner, and the first connecting parts are fixedly connected with the second connecting parts through fastening pieces;
the central hole is formed in the center of the fixed disc, the central shaft is installed in the central hole, and hoisting holes facilitating hoisting of other parts are formed in two ends of the central shaft;
and the wireless receiver and the electromagnet control device are used for receiving the cabin door switch control signal and controlling the electromagnet and the switch mechanism thereof to close the cabin door.
2. A ring sampler according to claim 1, wherein: the upper part of the central shaft is sleeved with a shaft sleeve, and a bearing is arranged between the shaft sleeve and the fixed disc; the waterproof conductive slip ring assembly is sleeved at the lower part of the central shaft, a conductive slip ring is arranged in the waterproof conductive slip ring assembly, and a boss for separating the shaft sleeve from the waterproof conductive slip ring assembly is arranged in the middle of the central shaft;
the antenna device is characterized in that a signal line channel is arranged in the central shaft along the axial direction, threading holes are formed in the signal line channel and the waterproof conductive slip ring assembly, and the conductive slip ring is used for conductively connecting the antenna device and the wireless receiver through a signal line.
3. A ring sampler according to claim 2, wherein: the waterproof conductive slip ring assembly comprises an inner nylon fixing ring and an outer nylon slip ring, an installation cavity is arranged between the inner nylon fixing ring and the outer nylon slip ring, the inner nylon fixing ring is fixedly installed on the outer side of a central shaft, the outer nylon slip ring is rotatably installed on the outer side of the inner nylon fixing ring, the conductive slip ring is located in the installation cavity and is fixedly installed on the inner nylon fixing ring, a signal wire connected with an antenna device penetrates through a signal wire channel and is fixedly connected with the conductive slip ring, and a signal wire electrically connected with the wireless receiver is connected onto the conductive slip ring in a sliding mode.
4. A ring sampler according to claim 1, wherein: the electromagnet comprises a shell, an electromagnetic coil and a movable iron core, wherein the electromagnetic coil is arranged in the shell, a sliding bin convenient for the movable iron core to move up and down is arranged in the shell, and the electromagnetic coil is positioned on the outer side of the sliding bin; a guide rod penetrates through the movable iron core, and the bottom end of the guide rod extends out of the sliding bin to be connected with the switch mechanism.
5. An annular sampler according to claim 4, wherein: and a waterproof sealing ring is arranged between the shell and the movable iron core.
6. An annular sampler according to claim 4, wherein: the top end of the guide rod extends out of the sliding bin and is in threaded connection with an adjusting nut used for adjusting the downward extending length of the guide rod.
7. An annular sampler according to claim 6, wherein: and a waterproof shell which is hermetically connected with the shell is arranged on the outer side of the top end of the guide rod.
8. A ring sampler according to claim 1, wherein: the switch mechanism comprises;
the bottom of the electromagnet is connected to the connecting shaft, and the hanging bracket is provided with an adjusting hole which is convenient for the connecting shaft to move up and down;
the hanging bracket is provided with two hinge shafts respectively connected with the buckling covers, the top ends of the buckling covers are hinged to the hinge shafts, a torsion spring is arranged between each hinge shaft and the corresponding buckling cover, the bottom of each buckling cover is provided with an installation shaft, and the installation shaft is sleeved with a roller for pressing the compression bar;
and one ends of the two connecting pieces are hinged with the connecting shaft, and the other ends of the two connecting pieces are hinged to the mounting shaft.
9. An annular sampler according to claim 8, wherein: the hanger is provided with two baffle plates opposite to the buckle cover, and the buckle cover is positioned on the inner side of the baffle plates.
CN201911019762.5A 2019-10-24 2019-10-24 Annular sampler Pending CN110763516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911019762.5A CN110763516A (en) 2019-10-24 2019-10-24 Annular sampler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911019762.5A CN110763516A (en) 2019-10-24 2019-10-24 Annular sampler

Publications (1)

Publication Number Publication Date
CN110763516A true CN110763516A (en) 2020-02-07

Family

ID=69333805

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911019762.5A Pending CN110763516A (en) 2019-10-24 2019-10-24 Annular sampler

Country Status (1)

Country Link
CN (1) CN110763516A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111551401A (en) * 2020-06-04 2020-08-18 同济大学 Multipoint sampling device and unmanned aerial vehicle carrying same
CN111855299A (en) * 2020-08-24 2020-10-30 山东交通学院 Remote control's distributing type multiple spot quality of water sampling device
CN113405849A (en) * 2021-06-19 2021-09-17 浙江杭康检测技术有限公司 Sampling device for measuring suspended matters in water
CN115326480A (en) * 2022-10-11 2022-11-11 巢湖学院 Water pollution source detection device and detection method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101464231A (en) * 2008-12-31 2009-06-24 四川大学 Deep water type water quality measurement multi-point sampling device
CN106092647A (en) * 2016-05-27 2016-11-09 浙江大学 A kind of water body sampler for autonomous underwater robot
CN109387394A (en) * 2018-11-15 2019-02-26 山东汇泽生态科技有限公司 A kind of cableway multi-point remote control horizontal type sampler
CN211085782U (en) * 2019-10-24 2020-07-24 山东汇泽生态科技有限公司 Annular sampler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101464231A (en) * 2008-12-31 2009-06-24 四川大学 Deep water type water quality measurement multi-point sampling device
CN106092647A (en) * 2016-05-27 2016-11-09 浙江大学 A kind of water body sampler for autonomous underwater robot
CN109387394A (en) * 2018-11-15 2019-02-26 山东汇泽生态科技有限公司 A kind of cableway multi-point remote control horizontal type sampler
CN211085782U (en) * 2019-10-24 2020-07-24 山东汇泽生态科技有限公司 Annular sampler

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111551401A (en) * 2020-06-04 2020-08-18 同济大学 Multipoint sampling device and unmanned aerial vehicle carrying same
CN111551401B (en) * 2020-06-04 2021-06-01 同济大学 Multipoint sampling device and unmanned aerial vehicle carrying same
CN111855299A (en) * 2020-08-24 2020-10-30 山东交通学院 Remote control's distributing type multiple spot quality of water sampling device
CN113405849A (en) * 2021-06-19 2021-09-17 浙江杭康检测技术有限公司 Sampling device for measuring suspended matters in water
CN115326480A (en) * 2022-10-11 2022-11-11 巢湖学院 Water pollution source detection device and detection method

Similar Documents

Publication Publication Date Title
CN110763516A (en) Annular sampler
CN211085782U (en) Annular sampler
US7498528B2 (en) Conductor connection
CA2313897A1 (en) Load-securing device
CN108557580A (en) A kind of disconnection monitoring warning device
CN213299389U (en) Meteorological information monitoring devices
CN109628975B (en) Oil removing and coloring equipment for processing aluminum alloy casement window
CN211089847U (en) Rack for communication transmission equipment
CN109262503A (en) A kind of rotary opening and closing formula electric drive clamping device
CN112539964B (en) Multi-bin type water sample collector
CN115200936B (en) Automatic tripping structure of self-adaptive feedback weak disturbance intelligent sampling equipment
CN201465881U (en) Circuit breaker
CN210150545U (en) Steel wire rope strand breakage detector for elevator
CN211148124U (en) Opening and closing mechanism of sampler
CN211263370U (en) Air quality monitoring device
CN210865885U (en) Feed-through current transformer
CN211085781U (en) Horizontal sampler
SU1656382A1 (en) Sampler
CN207528506U (en) Electromagnetic valve switch type water sample collector
CN208622930U (en) The well lid antenna of specific buffer structure
CN218824551U (en) Partial discharge on-line monitoring device of power transformation equipment
CN218907586U (en) Cabin door handle mechanism, cabin door and unmanned aerial vehicle
CN219801401U (en) Terminal connection assembly of built-in wire and cable
CN213540040U (en) Invisible door stopper for surface mounting
CN209232705U (en) Breaker earth leakage protective Self-resetting magnetictrip

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