CN109765074B - Water sampler - Google Patents

Water sampler Download PDF

Info

Publication number
CN109765074B
CN109765074B CN201811498151.9A CN201811498151A CN109765074B CN 109765074 B CN109765074 B CN 109765074B CN 201811498151 A CN201811498151 A CN 201811498151A CN 109765074 B CN109765074 B CN 109765074B
Authority
CN
China
Prior art keywords
vertical
cylinder body
guide sleeve
water
main
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
Application number
CN201811498151.9A
Other languages
Chinese (zh)
Other versions
CN109765074A (en
Inventor
卢占晖
徐开达
李振华
张亚洲
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.)
Zhejiang Marine Fisheries Research Institute
Original Assignee
Zhejiang Marine Fisheries Research Institute
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 Zhejiang Marine Fisheries Research Institute filed Critical Zhejiang Marine Fisheries Research Institute
Priority to CN201811498151.9A priority Critical patent/CN109765074B/en
Publication of CN109765074A publication Critical patent/CN109765074A/en
Application granted granted Critical
Publication of CN109765074B publication Critical patent/CN109765074B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Piles And Underground Anchors (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The invention discloses a water sampler, and aims to provide a water sampler which is convenient to operate and can effectively solve the problem that muddy water is stirred when a heavy hammer touches the bottom to influence the quality of a water sample collected by the water sampler. The water sampling device comprises a traction rope, a supporting base, a water sampling cylinder body, a support arranged on the supporting base, a vertical guide sleeve arranged on the support, a vertical mounting rod arranged on the upper surface of the supporting base and a self-locking mechanism used for locking the water sampling cylinder body. The water collection cylinder body comprises a vertical upper cylinder body, a vertical main cylinder body and a vertical lower cylinder body which are sequentially distributed from top to bottom, a connecting rod is arranged in the vertical upper cylinder body, and one end of a traction rope is connected with the connecting rod; the vertical mounting rod is provided with an upper piston body matched with the vertical upper cylinder body and a lower piston body matched with the vertical lower cylinder body; the vertical upper cylinder body is inserted in the vertical guide sleeve and can slide along the vertical guide sleeve, the vertical guide sleeve is coaxial with the vertical upper cylinder body, and the vertical guide sleeve is positioned above the vertical main cylinder body.

Description

Water sampler
Technical Field
The invention relates to the field of water sampling, in particular to a water sampler.
Background
In a large number of scientific researches and marine environment monitoring works, a certain amount of bottom seawater is generally collected for analyzing the bottom water quality. At present, the bottom layer seawater is usually collected by tying a traction rope at the upper end of a water sampler and hanging a heavy hammer at the lower end, wherein the weight of the heavy hammer is required to ensure that a barrel type water sampler has a certain sedimentation speed in water and can finally touch the seabed. When water is actually collected, a heavy hammer, a water collector and the like are sequentially put into water from a ship, and then a traction rope is discharged under the action of the gravity of the heavy hammer and the water collector until the heavy hammer touches the bottom; then, opening the water sampler through the fuze rope, and collecting bottom water; and after the collection is finished, the water sampler is lifted by the traction rope. At present, the water sampler can stimulate muddy water when a heavy hammer touches the bottom, thereby influencing the quality of a water sample collected by the water sampler; especially, under the condition that the seabed is soft mud, a heavy hammer can arouse a large amount of muddy water when touching the bottom, and the quality of a water sample collected by the water sampler is seriously influenced.
Disclosure of Invention
The invention aims to provide a water sampler which is convenient to operate and can effectively solve the problem that muddy water is stirred when a heavy hammer touches the bottom to influence the quality of a water sample collected by the water sampler.
The technical scheme of the invention is as follows:
a water sampler comprises a traction rope, a support base, a water sampling cylinder body, a support arranged on the support base, a vertical guide sleeve arranged on the support, a vertical mounting rod arranged on the upper surface of the support base and a self-locking mechanism used for locking the water sampling cylinder body, wherein the water sampling cylinder body comprises a vertical upper cylinder body, a vertical main cylinder body and a vertical lower cylinder body which are sequentially distributed from top to bottom, the vertical upper cylinder body, the vertical main cylinder body and the vertical lower cylinder body are coaxially distributed, the inner diameters of the vertical upper cylinder body and the vertical lower cylinder body are the same, the inner diameter of the vertical main cylinder body is larger than that of the vertical upper cylinder body, the outer diameter of the vertical main cylinder body is larger than that of the vertical upper cylinder body, the upper end of the vertical upper cylinder body is open, the lower end of the vertical upper cylinder body is communicated with the upper end of the vertical main cylinder body, the upper end of the vertical lower cylinder body, a connecting rod is arranged in the vertical upper cylinder body, the connecting rod is close to the upper end of the vertical upper cylinder body, and one end of the traction rope is connected with the connecting rod; the vertical mounting rod is coaxial with the vertical main cylinder body, and an upper piston body matched with the vertical upper cylinder body and a lower piston body matched with the vertical lower cylinder body are arranged on the vertical mounting rod; the vertical upper cylinder body is inserted in the vertical guide sleeve and can slide along the vertical guide sleeve, the vertical guide sleeve is coaxial with the vertical upper cylinder body, the vertical guide sleeve is positioned above the vertical main cylinder body, the self-locking mechanism comprises an annular clamping groove arranged at the upper part of the outer side surface of the vertical upper cylinder body, a horizontal guide sleeve arranged on the support, a locking rod which is arranged in the horizontal guide sleeve in a sliding manner and is used for being matched with the annular clamping groove, an annular stop block arranged on the outer side surface of the locking rod, a compression spring which is sleeved on the locking rod and is positioned between the annular stop block and the horizontal guide sleeve, and a locking rod through hole which is arranged on the vertical guide sleeve and penetrates through the inner side surface and the outer side surface of the vertical guide sleeve, the locking rod through hole is coaxial with the horizontal guide sleeve, the annular stop block is positioned between the vertical guide sleeve and the horizontal guide sleeve, one end of the locking rod penetrates through, the upper piston body is positioned in the inner cavity of the vertical main cylinder body, and the lower piston body is positioned below the vertical lower cylinder body;
when the lower end of the vertical lower cylinder body is abutted to the upper surface of the supporting base, the upper piston body is located in the vertical upper cylinder body, the lower piston body is located in the vertical lower cylinder body, the annular clamping groove and the locking rod are located at the same height, and the locking rod extends into the annular clamping groove under the action of the compression spring.
The water sampler of the scheme is convenient to operate, and can effectively solve the problem that the quality of a water sample collected by the water sampler is influenced by muddy water stirred when the heavy hammer touches the bottom.
Preferably, a balancing weight is arranged on the outer side surface of the vertical main cylinder body.
Preferably, the balancing weight is polylith, and the balancing weight is around vertical main cylinder body circumference equipartition.
Preferably, the end surface of the locking rod of the vertical upper cylinder body is provided with a hemispherical protrusion.
Preferably, the sliding direction of the locking rod is parallel to the radial direction of the vertical guide sleeve.
Preferably, the support base is a concrete base.
Preferably, the support base has a truncated cone at its upper portion.
The invention has the beneficial effects that: not only convenient operation can effectively solve the problem that the quality of the water sample collected by the water sampler is influenced because the heavy hammer can stimulate muddy water when touching the bottom.
Drawings
Fig. 1 is a schematic view of a structure of a water sampler of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
In the figure:
a support base 1;
a bracket 2;
a hauling rope 3;
a water collecting cylinder body 4, a vertical upper cylinder body 4.1, a vertical main cylinder body 4.2, a vertical lower cylinder body 4.3 and a balancing weight 4.4;
a vertical guide sleeve 5;
a connecting rod 6;
the locking device comprises a self-locking mechanism 7, an annular clamping groove 7.1, a horizontal guide sleeve 7.2, a locking rod 7.3, an annular stop dog 7.4, a compression spring 7.5 and a locking rod through hole 7.6;
a vertical mounting rod 8;
an upper piston body 9.1 and a lower piston body 9.2.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present scheme, and are not construed as limiting the scheme of the present invention.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited thereby. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections, either mechanical or electrical, or communicating with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: as shown in fig. 1 and 2, the water sampler comprises a traction rope 3, a support base 1, a water sampling cylinder 4, a support 2 arranged on the support base, a vertical guide sleeve 5 arranged on the support, a vertical mounting rod 8 arranged on the upper surface of the support base, and a self-locking mechanism 7 for locking the water sampling cylinder. The support base is a concrete base. The upper part of the supporting base is a cone.
The water collecting cylinder body 4 comprises a vertical upper cylinder body 4.1, a vertical main cylinder body 4.2 and a vertical lower cylinder body 4.3 which are sequentially distributed from top to bottom. The vertical upper cylinder body, the vertical main cylinder body and the vertical lower cylinder body are coaxially distributed. The inner diameters of the upper vertical cylinder body and the lower vertical cylinder body are the same, the inner diameter of the main vertical cylinder body is larger than that of the upper vertical cylinder body, and the outer diameter of the main vertical cylinder body is larger than that of the upper vertical cylinder body. The upper end of the vertical upper cylinder body is opened, and the lower end of the vertical upper cylinder body is communicated with the upper end of the vertical main cylinder body. The upper end of the vertical lower cylinder body is communicated with the lower end of the vertical main cylinder body, and the lower end of the vertical lower cylinder body is opened.
A connecting rod 6 is arranged in the vertical upper cylinder body and is close to the upper end of the vertical upper cylinder body. One end of the hauling rope 3 is connected with the connecting rod.
A plurality of balancing weights 4.4 are arranged on the outer side surface of the vertical main cylinder body. The balancing weights are uniformly distributed around the vertical main cylinder body in the circumferential direction.
The vertical mounting rod 8 is coaxial with the vertical main cylinder body, and an upper piston body 9.1 matched with the vertical upper cylinder body and a lower piston body 9.2 matched with the vertical lower cylinder body are arranged on the vertical mounting rod. The upper piston body is located above the lower piston body. The outer diameters of the upper piston body and the lower piston body are the same.
The vertical upper cylinder body 4.1 is inserted in the vertical guide sleeve 5 and can slide along the vertical guide sleeve, so that the water collecting cylinder body can slide along the vertical guide sleeve. The vertical guide sleeve is coaxial with the vertical upper cylinder body and is positioned above the vertical main cylinder body.
The self-locking mechanism 7 comprises an annular clamping groove 7.1 arranged on the upper portion of the outer side face of the vertical upper cylinder body, a horizontal guide sleeve 7.2 arranged on the support, a locking rod 7.3 arranged in the horizontal guide sleeve in a sliding mode and used for being matched with the annular clamping groove, an annular stop 7.4 arranged on the outer side face of the locking rod, a compression spring 7.5 arranged on the locking rod in a sleeved mode and located between the annular stop and the horizontal guide sleeve, and a locking rod through hole 7.6 arranged on the vertical guide sleeve and penetrating through the inner side face and the outer side face of the vertical guide sleeve.
The sliding direction of the locking rod is parallel to the radial direction of the vertical guide sleeve. The locking lever via hole is coaxial with the horizontal guide sleeve. The annular stop block is positioned between the vertical guide sleeve and the horizontal guide sleeve. One end of the locking rod penetrates through the locking rod through hole and abuts against the outer side face of the vertical upper cylinder body. The end face of the locking rod of the vertical upper cylinder body is provided with a hemispherical bulge. The hemispherical bulge is propped against the outer side surface of the vertical upper cylinder body.
As shown in fig. 1, when the upper end surface of the vertical main cylinder body abuts against the lower end of the vertical guide sleeve, the upper piston body is positioned in the inner cavity of the vertical main cylinder body, and the lower piston body is positioned below the vertical lower cylinder body;
when the lower end of the vertical lower cylinder body is abutted to the upper surface of the supporting base, the upper piston body is located in the vertical upper cylinder body, the lower piston body is located in the vertical lower cylinder body, the annular clamping groove and the locking rod are located at the same height, and the locking rod extends into the annular clamping groove under the action of the compression spring.
The specific use is as follows,
first, as shown in fig. 1, the water sampler is suspended below the pulling rope, and the upper end surface of the vertical main cylinder body is abutted against the lower end of the vertical guide sleeve.
Then, putting the water sampler into water from a ship through a traction rope, then discharging the traction rope under the action of gravity of a support base, and continuously releasing the traction rope after the support base is bottomed (judged by whether the traction rope is completely loosened at the water surface part or not) so as to enable the traction rope at the water surface part to be completely loosened;
when the supporting base touches the bottom and the traction rope continues to release, the water collecting cylinder body moves downwards along the vertical guide sleeve under the action of the dead weight and the counterweight block until the lower end of the vertical lower cylinder body is abutted against the upper surface of the supporting base; thus, although muddy water can be stirred up when the supporting base touches the bottom, before the supporting base touches the bottom, the bottom water is collected in the water collection cylinder body (namely the bottom water enters the water collection cylinder body), the water collection cylinder body moves downwards within a short time after the supporting base touches the bottom, the lower end of the vertical lower cylinder body is abutted against the upper surface of the supporting base, at the moment, the upper piston body is positioned in the vertical upper cylinder body, the lower piston body is positioned in the vertical lower cylinder body, the upper end and the lower end of the water collection cylinder body are sealed, muddy water is blocked from entering the water collection cylinder body, accordingly, muddy water stirred up when the supporting base touches the bottom is prevented from entering the water collection cylinder body, and the problem that muddy water can be stirred up when the heavy hammer touches the bottom and the quality of a water sample collected by the water collection device is influenced is effectively solved;
meanwhile, when the lower end of the vertical lower cylinder body is abutted to the upper surface of the supporting base, the annular clamping groove and the locking rod are located at the same height, and the locking rod extends into the annular clamping groove under the action of the compression spring.
And then, the water sampler is lifted by the traction rope, so that the sampling of the bottom water is realized. Because the locking lever stretches into the ring-shaped clamping groove under the action of the compression spring, the upper piston body is positioned in the vertical upper cylinder body, the lower piston body is positioned in the vertical lower cylinder body, and the upper end and the lower end of the water sampling cylinder body are in a closed state in the process that the water sampling device is lifted by the traction rope.

Claims (7)

1. A water sampler is characterized by comprising a traction rope, a supporting base, a water sampling cylinder body, a bracket arranged on the supporting base, a vertical guide sleeve arranged on the bracket, a vertical mounting rod arranged on the upper surface of the supporting base and a self-locking mechanism used for locking the water sampling cylinder body,
the water sampling cylinder body comprises an upper vertical cylinder body, a main vertical cylinder body and a lower vertical cylinder body which are sequentially distributed from top to bottom, the upper vertical cylinder body, the main vertical cylinder body and the lower vertical cylinder body are coaxially distributed, the inner diameters of the upper vertical cylinder body and the lower vertical cylinder body are the same, the inner diameter of the main vertical cylinder body is larger than that of the upper vertical cylinder body, the outer diameter of the main vertical cylinder body is larger than that of the upper vertical cylinder body, the upper end of the upper vertical cylinder body is open, the lower end of the upper vertical cylinder body is communicated with the upper end of the main vertical cylinder body, the upper end of the lower vertical cylinder body is communicated with the lower end of the main vertical cylinder body,
a connecting rod is arranged in the vertical upper cylinder body, the connecting rod is close to the upper end of the vertical upper cylinder body, and one end of the traction rope is connected with the connecting rod;
the vertical mounting rod is coaxial with the vertical main cylinder body, and an upper piston body matched with the vertical upper cylinder body and a lower piston body matched with the vertical lower cylinder body are arranged on the vertical mounting rod;
the vertical upper cylinder body is inserted in the vertical guide sleeve and can slide along the vertical guide sleeve, the vertical guide sleeve is coaxial with the vertical upper cylinder body, the vertical guide sleeve is positioned above the vertical main cylinder body,
the self-locking mechanism comprises an annular clamping groove arranged at the upper part of the outer side surface of the vertical upper cylinder body, a horizontal guide sleeve arranged on the support, a locking rod which is arranged in the horizontal guide sleeve in a sliding manner and is used for being matched with the annular clamping groove, an annular stop block arranged on the outer side surface of the locking rod, a compression spring which is sleeved on the locking rod and is positioned between the annular stop block and the horizontal guide sleeve, and a locking rod through hole which is arranged on the vertical guide sleeve and penetrates through the inner side surface and the outer side surface of the vertical guide sleeve, the locking rod through hole is coaxial with the horizontal guide sleeve, the annular stop block is positioned between the vertical guide sleeve and the horizontal guide sleeve, one end of the locking,
when the upper end face of the vertical main cylinder body is abutted against the lower end of the vertical guide sleeve, the upper piston body is positioned in the inner cavity of the vertical main cylinder body, and the lower piston body is positioned below the vertical lower cylinder body;
when the lower end of the vertical lower cylinder body is abutted to the upper surface of the supporting base, the upper piston body is located in the vertical upper cylinder body, the lower piston body is located in the vertical lower cylinder body, the annular clamping groove and the locking rod are located at the same height, and the locking rod extends into the annular clamping groove under the action of the compression spring.
2. A water sampler as claimed in claim 1 wherein the outer side of the vertical main cylinder is provided with a counterweight.
3. A water sampler as claimed in claim 2 wherein the plurality of clump weights are evenly spaced circumferentially around the vertical main cylinder.
4. A water sampler as claimed in claim 1 or claim 2 or claim 3 wherein the end face of the locking bar adjacent the upper vertical cylinder is provided with a hemispherical protrusion.
5. A water sampler as claimed in claim 1, 2 or 3 wherein the sliding direction of the locking bar is parallel to the radial direction of the vertical guide sleeve.
6. A water sampler as claimed in claim 1, 2 or 3 wherein the support base is a concrete base.
7. A water sampler as claimed in claim 1, 2 or 3 wherein the support base is a truncated cone on top.
CN201811498151.9A 2018-12-07 2018-12-07 Water sampler Active CN109765074B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811498151.9A CN109765074B (en) 2018-12-07 2018-12-07 Water sampler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811498151.9A CN109765074B (en) 2018-12-07 2018-12-07 Water sampler

Publications (2)

Publication Number Publication Date
CN109765074A CN109765074A (en) 2019-05-17
CN109765074B true CN109765074B (en) 2021-02-19

Family

ID=66451363

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811498151.9A Active CN109765074B (en) 2018-12-07 2018-12-07 Water sampler

Country Status (1)

Country Link
CN (1) CN109765074B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112414771B (en) * 2020-09-29 2024-02-09 浙江省海洋水产研究所 Bottoming type seabed water sample anti-interference sampling equipment and water sampling method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201364253Y (en) * 2009-03-09 2009-12-16 大连水产学院 Multifunctional water sampler
RU2446388C1 (en) * 2010-09-15 2012-03-27 Учереждение Российской академии наук Тихоокеанский океанологический институт им. В.И. Ильичева Дальневосточного отделения РАН (ТОИ ДВО РАН) Probe for collecting water samples from bottom sediments
CN105445059A (en) * 2015-11-16 2016-03-30 浙江省海洋水产研究所 Anti-interference collection equipment for bottom seawater
CN105571898A (en) * 2016-01-28 2016-05-11 浙江省海洋水产研究所 Seabed water sample depth-setting sampler
CN105699123A (en) * 2016-01-28 2016-06-22 浙江省海洋水产研究所 Anti-interference heavy hammer mechanism
CN107290174A (en) * 2017-08-04 2017-10-24 山东科技大学 New water sample bed mud combined sampling device and its method for sampling
CN107796660A (en) * 2017-11-28 2018-03-13 江苏省水利科学研究院 A kind of undisturbed stratified substrate sludge sampler
CN207300642U (en) * 2017-10-26 2018-05-01 中国港湾工程有限责任公司 Drilling on waterways sampler

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201364253Y (en) * 2009-03-09 2009-12-16 大连水产学院 Multifunctional water sampler
RU2446388C1 (en) * 2010-09-15 2012-03-27 Учереждение Российской академии наук Тихоокеанский океанологический институт им. В.И. Ильичева Дальневосточного отделения РАН (ТОИ ДВО РАН) Probe for collecting water samples from bottom sediments
CN105445059A (en) * 2015-11-16 2016-03-30 浙江省海洋水产研究所 Anti-interference collection equipment for bottom seawater
CN105571898A (en) * 2016-01-28 2016-05-11 浙江省海洋水产研究所 Seabed water sample depth-setting sampler
CN105699123A (en) * 2016-01-28 2016-06-22 浙江省海洋水产研究所 Anti-interference heavy hammer mechanism
CN107290174A (en) * 2017-08-04 2017-10-24 山东科技大学 New water sample bed mud combined sampling device and its method for sampling
CN207300642U (en) * 2017-10-26 2018-05-01 中国港湾工程有限责任公司 Drilling on waterways sampler
CN107796660A (en) * 2017-11-28 2018-03-13 江苏省水利科学研究院 A kind of undisturbed stratified substrate sludge sampler

Also Published As

Publication number Publication date
CN109765074A (en) 2019-05-17

Similar Documents

Publication Publication Date Title
CN104614203B (en) Trigger-type seabed water sampling system
CN104880336B (en) Bottom water stratification water sampling device
CN104677676B (en) Water collecting device
CN105571898B (en) Seabed water sample depth sampler
CN203837964U (en) Suspending hammer layering water sampler
CN109765074B (en) Water sampler
CN110057620B (en) Bottom water sample collection system
CN201909725U (en) Deepwater bottom sampler
CN104677679B (en) Water sample air-tight fidelity collection device
CN207600790U (en) A kind of deep water sample hydrophore of bottom turnover plate type design
CN107560889B (en) A kind of big flux bottom mud column-shaped sampling apparatus and the method for sampling
CN201440115U (en) Undisturbed deposition pillar core sampler
CN110736643B (en) Sampling device for collecting micro-plastic deposited on the seabed
CN219694614U (en) Unmanned aerial vehicle water sample collection system
CN110057621B (en) Bottom-touching anti-interference water-sampling equipment
CN105699123A (en) Anti-interference heavy hammer mechanism
CN104675383A (en) Underground electronic pressure gage hanger
CN208043536U (en) A kind of automatically-unhooked hooking device of model test hammer ram
CN211235005U (en) Sampling device
CN112414771B (en) Bottoming type seabed water sample anti-interference sampling equipment and water sampling method
CN210658301U (en) Novel dynamic sounding instrument
CN211735561U (en) Mud detects sampling device
CN104913949B (en) A kind of river lake storehouse sediment columnar sampler
CN105445058B (en) Trigger expanded type weight-driven
CN214584181U (en) Food sampler for food science research

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