CN205404176U - Superficial deposit thing sample thief - Google Patents

Superficial deposit thing sample thief Download PDF

Info

Publication number
CN205404176U
CN205404176U CN201620138364.0U CN201620138364U CN205404176U CN 205404176 U CN205404176 U CN 205404176U CN 201620138364 U CN201620138364 U CN 201620138364U CN 205404176 U CN205404176 U CN 205404176U
Authority
CN
China
Prior art keywords
sampler
clamping block
sampling
sample
expansion link
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
CN201620138364.0U
Other languages
Chinese (zh)
Inventor
利锋
林泽峰
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.)
Guangdong Clean Water Environment Technology Co ltd
Original Assignee
South China University of Technology SCUT
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 South China University of Technology SCUT filed Critical South China University of Technology SCUT
Priority to CN201620138364.0U priority Critical patent/CN205404176U/en
Application granted granted Critical
Publication of CN205404176U publication Critical patent/CN205404176U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Sampling And Sample Adjustment (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The utility model provides a superficial deposit thing sample thief. The sample thief includes telescopic button and telescopic link can extend and shorten to the sample thief, and can dismantle by anytime and anywhere, first chucking piece, second chucking piece are fixed the telescopic link around the sampling is sealed, sample thief horizontal extension section, convenient operation is carried and being drawn, sample box is used for collecting the bed mud sample of adopting, reduces the interference of sample thief to the bed mud sample itself, still include the effect of vertical supporting rod through first chucking piece, second chucking piece and spring, control opening and close of steel sheet, utilize the steel sheet to seal the sample thief after the sampling to sample box was in an airtight space during this guaranteed the sample thief, reduced sediment samples's disturbance and mixture, sawtooth greatly reduced on the sample thief degree of difficulty of sampling, making the sample thief environment of sampling can adapt to more. The utility model has the advantages of easy operation, low cost, convenient to detach carry, and anti disturbancly is strong, and sampling stability is high and can control sampling depth in a flexible way.

Description

A kind of surface sediment sampler
Technical field
This utility model relates to a kind of to may be used for Complex Water Environment mesexine sediment sampling device, is specifically related to a kind of surface sediment sampler.
Background technology
Bed mud monitoring is the important component part of water body environment investigation and scientific research, includes the information of substantial amounts of natural environment and climate under water in Sediments, is the important sample of research weather and environmental change rule.Therefore, carry out surface deposit collecting work undisturbed and important in inhibiting is carried out for research work such as heavy metal pollution, bioturbation, Nutrients Fluxes, Denitrifications.
The known sediment sampler of current China is broadly divided into Grab-type sediment sampler and column shaped deposit sampling instrument.Grab type sampler is used for acquisition tables surface sediments, and during sampling, grapple bucket opens, and the gravity of utilization itself is absorbed in deposit, closes again through cable traction grapple bucket, deposit collection is come up.Grab-type sediment sampler is generally used to gather surface deposit under water, but in the process of this sampler lift-off water surface after acquisition, easily cause the disturbance of the surface deposit gathered and mix, in some instances it may even be possible to cause that sample segment drops owing to grapple bucket has opened in the process of lift-off.
The maximum shortcoming of current Grab-type sediment sampler is: rely on artificial throw to throw also insert it into deposit by sampler own wt, it is difficult to control its sampling depth, there is certain blindness;And it is that such keying effect is often not so good, very easily causes deposit to drop in lift-off process by cable traction and by the realization grab bucket keying of sampler own wt.
The domestic patent application having after the shortcoming for Grab-type sediment sampler improves, such as: Authorization Notice No. is CN204422245U(lake grab type sediment sampler), Authorization Notice No. is CN102967489A(Grab-type sediment sampler), but all it is dependent on pull rope or suspension ring connect left and right grab bucket, sampling stability cannot be ensured, and anti-interference is also poor.
Authorization Notice No. is CN202939054U(sediment sampler), it is then be provided above left and right half and half umbrella cover (material is nylon cover) at sampling cylinder, connect left and right half umbrella by withdrawing rope to cover on and make left and right half umbrella cover close up to lifting up after sampling, reduce to the disturbance of surface deposit when lifting up with mix.But nylon cover is not a complete airtight space, all the time deposit can be existed certain interference, and utilize withdrawing rope cannot determine its stability to lifting up, not exclusively also surface deposit can be caused certain disturbance and mixes if rope drop or left and right half umbrella cover close up.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is in that to provide a kind of simple in construction, with low cost, easy to remove to carry, and disturbance rejection is strong, the surface sediment sampler of the sampling high and controlled sampling depth of stability.
The technical solution of the utility model is as follows.
A kind of surface sediment sampler, including the first clamping block, the second clamping block, sampler horizontal expansion section, expansion link, vertical supporting bar, sampler, steel plate, sawtooth, sampling box and spring, rotating shaft, axle sleeve;
Described first clamping block, the second clamping block are arranged on expansion link;The bottom left end of described expansion link is provided with vertical supporting bar;Described first clamping block, the second clamping block all can upwards downwardly turn over respectively and be respectively connected with rotating shaft to vertical state, described first clamping block and the second clamping block lower end;Described expansion link is provided with two axle sleeves;Described axle sleeve and rotating shaft entangle firm;Described sampler horizontal expansion section is the sampler horizontal expansion at top;Described spring upper end is fixed on bottom expansion link, and lower spring end is fixed on bottom sampler;Described vertical supporting bar is the vertically extending of expansion link, together with Interal fixation;Described sampling box is fixed on bottom sampler;Described sawtooth is arranged on sampler bottom front lateral surface, and when steel plate is closed, steel plate becomes airtight Guan Bi with sawtooth.
Above-mentioned surface sediment sampler, also includes regulating button;Said two regulates button and links together with sampler the first contraction section and the second contraction section, first contraction section length is 70 ~ 90 centimetres, second contraction section length is 90 ~ 110 centimetres, sampler bottom stage length is 140 ~ 160 centimetres, sampler can only use bottom stage to sample when sampling depth is below 2 meters, when sampling depth is 2 meters ~ 3 meters, the second contraction section is stretched out and sample, when sampling depth is 3 meters ~ 3.5 meters, first and second contraction section is all stretched out and sample.
Above-mentioned surface sediment sampler, the keying in sampling process of the described steel plate is by rotating the first clamping block, the second clamping block to vertical state, again expansion link is firmly pressed, treat that the first clamping block enters in sampler, first clamping block is rotated to level, now steel plate closes with sawtooth due to the decline of vertical supporting bar, forms the sample space closed.
The material of above-mentioned surface sediment sampler, described whole sampler and sawtooth is stainless steel, and sampler is combined by 1 ~ 3 hollow square cylinder.
Above-mentioned surface sediment sampler, described sampling box material is lucite material;Described expansion link adopts the scalable hollow square body rod that sheet metal strip or plastic sheet roll;Described rotating shaft and material, axle sleeve are copper.
Above-mentioned surface sediment sampler, described steel plate adopts the steel plate of 20 millimeters ~ 30 millimeters.
The beneficial effects of the utility model and remarkable advantage:
(1) this utility model is compared with tradition grab type surface sediment sampler, it is flexible button and expansion link owing to sampler utilizes, sampler can carry out elongation shorten, it is easy to control sampling depth, all kinds of different top layers sampling situations can be changed flexibly, and sampler can be dismantled, be convenient for carrying.
(2) it is different from tradition grab type sampler " grabbing " like that and takes surface sediment samples, but the form that use " digging "+" plane " takes, by artificially applying pressure, with sawtooth in surface sediment sampler, can according to different deposit situations (such as soft deposit and hard deposit, silt mixing, mudstone mixing) Autonomous Control sampling quantity, sampling stability and success rate are greatly improved.
(3) after successfully taking sediment sample, further through the fixing and stretching action that expansion link, vertical supporting bar, steel plate and spring are mutual, make steel plate after successfully taking sediment sample, perfection encloses with sawtooth tightly, again sampler lift is got up, make sediment sample in a space sealed, avoid the disturbance to surface sediment samples greatly and mix.
(4) in sampler, secure lucite sampling box, again avoid sampler itself to the disturbance of surface sediment samples with mix.
(5) whole sampling process is simple to operate, single just can complete sampling work, the material therefor less expensive of sampler own.
(6) convenient transportation, can carry back and forth in the region that cannot use sampling boat, arrives the predetermined area.
(7) part being connected with sampling head is the rustless steel (thief rod) that intensity is very big, it is different from traditional grab sampler (adopting cable wire to connect), therefore this sampler can tackle the situation that current are anxious, it is to avoid sampling head is caused out of position by water impact.
Accompanying drawing explanation
Fig. 1 is the planar structure schematic diagram of this utility model surface sediment sampler;
Fig. 2 is the cross-sectional view under the non-closed state of this utility model surface sediment sampler;
Fig. 3 is the cross-sectional view under this utility model surface sediment sampler closed state;
Fig. 4 is the detail structure figure of this utility model surface sediment sampler the second clamping block.
In figure, all parts is as follows: first clamping block the 1, second clamping block 2, sampler horizontal expansion section 3, flexible button 4, expansion link 5, vertical supporting bar 6, sampler 7, steel plate 8, sawtooth 9, sampling box 10, spring 11, rotating shaft 12, axle sleeve 13.
Detailed description of the invention
By particular specific embodiment and sampler concrete operation method, embodiment of the present utility model being described below, those skilled in the art the content disclosed by this specification can understand other advantages of the present utility model and effect easily.
As shown in Fig. 1 ~ Fig. 4, this utility model surface sediment sampler, including first clamping block the 1, second clamping block 2, sampler horizontal expansion section 3, expansion link 5, vertical supporting bar 6, sampler 7, steel plate 8, sawtooth 9, sampling box 10 and spring 11, rotating shaft 12, axle sleeve 13;Described first clamping block the 1, second clamping block 2 is arranged on expansion link 5;The bottom left end of described expansion link 5 is provided with vertical supporting bar 6;Described first clamping block the 1, second clamping block 2 all can upwards downwardly turn over respectively to vertical state, and described first clamping block 1 and the second clamping block 2 lower end are respectively connected with rotating shaft 12;Described expansion link 5 is provided with two axle sleeves 13;Described axle sleeve 13 entangles firm with rotating shaft 12;Described sampler horizontal expansion section 3 is the sampler 7 horizontal expansion at top;Described spring 11 upper end is fixed on bottom expansion link 5, and spring 11 lower end is fixed on bottom sampler 7;Described vertical supporting bar 6 is the vertically extending of expansion link 5, is fixed together with steel plate 8;Described sampling box 10 is fixed on bottom sampler 7;Described sawtooth 9 is arranged on sampler 7 bottom front lateral surface, and Guan Bi airtight with 9 one-tenth of sawtooth when steel plate 8 is closed.Also include regulating button 4;Said two regulates button 4 and links together with sampler 7 first contraction section and the second contraction section, first contraction section length is 70 ~ 90 centimetres, second contraction section length is 90 ~ 110 centimetres, sampler 7 bottom stage length is 140 ~ 160 centimetres, sampler 7 can only use bottom stage to sample when sampling depth is below 2 meters, when sampling depth is 2 meters ~ 3 meters, the second contraction section is stretched out and sample, when sampling depth is 3 meters ~ 3.5 meters, first and second contraction section is all stretched out and sample.The keying in sampling process of the described steel plate 8 is by rotating first clamping block the 1, second clamping block 2 to vertical state, again expansion link 5 is firmly pressed, treat that the first clamping block 1 enters in sampler 7, first clamping block 1 is rotated to level, now steel plate 8 closes with sawtooth 9 due to the decline of vertical supporting bar 6, forms the sample space closed.The material of described whole sampler 7 and sawtooth 9 is stainless steel, and sampler 7 is combined by 1 ~ 3 hollow square cylinder.Described sampling box 10 material is lucite material;Described expansion link 5 adopts the scalable hollow square body rod that sheet metal strip or plastic sheet roll;Described rotating shaft 12 and axle sleeve 13 material are copper.Described steel plate 8 adopts the steel plate of 20 millimeters ~ 30 millimeters.
As shown in Fig. 2 sectional structure chart (non-closed state), before sampling, first sampling box 10 is fixed on the bottom of sampler 7, tests, it is prevented that sampling box comes off in sampling process;Then expansion link (5), sampler 7 are assembled, according to actual samples situation, expansion link 5, sampler 7 elongation are foreshortened to suitable length;Then expansion link 5 is owing to spring 11 and the second clamping block 2 support and make its vertical supporting bar 6 prop up steel plate 8 under backwater effect, makes the sawtooth 9 of steel plate 8 and sampler first not close;Following sample collector catches sampler horizontal expansion section 3, conveniently makes power, utilizes sawtooth 9 according to different deposit situations (such as soft deposit and hard deposit), artificially sampler is exerted a force, adopt sediment sample with the form of " digging ", take required sampling quantity;
As shown in Fig. 3 sectional structure chart (closed state), after sample is taked, first clamping block (1) and the second clamping block 2 are overturn and are flipped up separately down to vertical state, expansion link (5) is firmly down pressed, by entering in sampler 7 to the second clamping block 2, again the second clamping block 2 is rotated to level, just can decontrol expansion link 5.Now, fixation due to spring 9 elastic force effect upwards and the second clamping block 2 with sampler 7, just can making expansion link decline certain distance and fix, then due to the decline of vertical supporting bar 6, steel plate 8 also becomes carrying out airtight Guan Bi with sawtooth 9 from open state.At this time whole sampling box is in a state sealed, and sampler 7 is slowly lifted out the water surface again through sampler horizontal expansion section 3 by sample collector, is recovered by expansion link 5 to the state before not closing.Finally, sampling box 10 is taken out from sampler 7, then seals with lid, take back laboratory and test, reinstall next sampling box 10, repeat the above steps, carry out the sampling work of next sampled point.Fig. 4 is that the detail structure figure of this utility model surface sediment sampler the second clamping block, the first clamping block and the second clamping block are similar.
In the present embodiment, sampler is of a size of 30cm × 15cm × 2cm(corresponding length, width and height respectively by the section of lift), the first contraction section is of a size of 15cm × 15cm × 80cm, the second contraction section is of a size of 17cm × 17cm × 100cm and bottom stage is of a size of 4 sections of hollow square cylinders of 20cm × 20cm × 150cm and combines, wall thickness is 0.6cm, all adopts common stainless steel material to manufacture;Sampling box is of a size of 20cm × 20cm × 25cm, adopts pmma material manufacture;Steel plate thickness is 20mm, and length and width are mated with sampling box, and leading portion is made zigzag and closely agreed with airtight with sampler;Expansion link cross section is 6cm × 6cm hollow square body being made up of sheet metal strip, and its collapsing length is corresponding with each telescopic section of sampler and bottom stage respectively.
Embodiment 1
In the present embodiment, this utility model applies simultaneously to, with tradition grab type sampler, the urban waterway bed mud sample collecting that riverbed is complicated and changeable, and water surface situation is also limited by bridge opening etc., is difficult to use sampling boat.In certain shoal, (depth of water is about 0.3m ~ 0.5m respectively, major part is hard-caked sediment riverbed, part riverbed grows grass, and its root is many by sandy soil, rubbish covers, mud amount is rare, the embankment adjoined is " three light " hard dike), arterial highway is gushed in certain river, and (depth of water is about 0.5m ~ 1.0m, several years ago through dredging, the rubble that the many river training works in the little river bed of riverbed mud are abandoned, in recent years the bed mud deposited is between crack of stone)) and certain bridge at the bottom of (hard-caked sedimentization is comparatively serious in river course, bridge pier periphery is entirely hard concrete, only have only a few place and have a small amount of mud) carry out the sampling of surface deposit.
Tradition grab type sampler is sampled under environmental condition at the above 3 kinds, is very limited, and sampling work cannot be carried out.And this sampler has sawtooth in sampling end design, when tackling hard-caked sedimentization at the bottom of the many stone of beach, the covering of the many sandy soil in river bed and river course and being more serious, stone or sandy soil are first moved (shovel) on one side by available sharp sawtooth, be smoothed out normal sampling subsequently, and sampling quantity and success rate are all higher.
Additionally, due to sampling boat cannot be used, it is just that the deep region grab bucket of mud also cannot play a role substantially, transport difficult in addition.And its detachable and assembleability of this surface sediment sampler, can arbitrarily dismantle the boot (being even placed in baby truck car) being placed on family-sized car, easy to carry, shuttle in complicated narrow and small city river embankment road, accurately arrive the predetermined area.And when being sampled in the river that shoal or sampling depth are less, can only carry its sampler bottom stage, reduce the heavy burdens to greatest extent.
Embodiment 2
The present embodiment carries out the sampling work of surface deposit in certain city river master stream, and its master stream depth of water is about 2.0m ~ 3.0m, and the deeper and water-bed undercurrent of water is relatively anxious, intends gathering water-bed 3 ~ 5cm surface deposit.The present embodiment uses this sampler and tradition grab type sampler to sample, and sampling step is consistent with the above.Tradition grab type sampler cannot collect sediment sample substantially, and reason is: particularly the bottom springs up as undercurrent, and grab bucket is put down and just rushed askew, is difficult to touch bed mud, particularly cannot arrive the bed mud specifying sample area;Even if touching bed mud also extremely difficult crawl sample, also easily washed away by current even if having grasped at sample.And this sampler is due to its airtight condition, in multiple repairing weld, all it is not apparent from observing sample diffusion phenomenon, therefore when depth of water undercurrent is anxious, this sampler samples stability all compares with success rate high.
This utility model simple in construction, with low cost, easy to remove to carry, and disturbance rejection is strong, sampling stability is high and can control sampling depth flexibly, it is adaptable to surface deposit is sampled, and has good economy and practicality.
Above-described embodiment only illustrative principle of the present utility model and effect thereof, not for restriction this utility model.Above-described embodiment all under spirit of the present utility model and category, can be modified or change by any those skilled in the art.Therefore, art has all equivalence modification or changes that usually intellectual completes under the spirit disclosed without departing from this utility model with technological thought such as, must be contained by claim of the present utility model.

Claims (6)

1. a surface sediment sampler, it is characterized in that, including the first clamping block (1), the second clamping block (2), sampler horizontal expansion section (3), expansion link (5), vertical supporting bar (6), sampler (7), steel plate (8), sawtooth (9), sampling box (10) and spring (11), rotating shaft (12), axle sleeve (13);
Described first clamping block (1), the second clamping block (2) are arranged on expansion link (5);The bottom left end of described expansion link (5) is provided with vertical supporting bar (6);Described first clamping block (1) and the second clamping block (2) lower end are respectively connected with rotating shaft (12);Described expansion link (5) is provided with two axle sleeves (13);Described axle sleeve (13) and rotating shaft (12) entangle firm;Described sampler horizontal expansion section (3) is the sampler (7) horizontal expansion at top;Described spring (11) upper end is fixed on expansion link (5) bottom, and spring (11) lower end is fixed on sampler (7) bottom;Vertically extending for expansion link (5) of described vertical supporting bar (6), is fixed together with steel plate (8);Described sampling box (10) is fixed on sampler (7) bottom;Described sawtooth (9) is arranged on sampler (7) bottom front lateral surface, and when steel plate (8) is closed, steel plate (8) becomes airtight Guan Bi with sawtooth (9).
2. surface sediment sampler according to claim 1, it is characterised in that also include regulating button (4);Said two regulates button (4) and links together with sampler (7) first contraction section and the second contraction section, and the first contraction section length is 70 ~ 90 centimetres, and the second contraction section length is 90 ~ 110 centimetres, and sampler (7) bottom lengths is 140 ~ 160 centimetres.
3. surface sediment sampler according to claim 1, it is characterized in that, the described steel plate (8) keying in sampling process is by rotating the first clamping block (1), the second clamping block (2) to vertical state, again expansion link (5) is firmly pressed, treat that the first clamping block (1) enters in sampler (7), first clamping block (1) is rotated to level, now steel plate (8) closes with sawtooth (9) due to the decline of vertical supporting bar (6), forms the sample space closed.
4. surface sediment sampler according to claim 1, it is characterised in that the material of described whole sampler (7) and sawtooth (9) is stainless steel, and sampler (7) is combined by 1 ~ 3 hollow square cylinder.
5. surface sediment sampler according to claim 1, it is characterised in that described sampling box (10) material is lucite material;Described expansion link (5) adopts the scalable hollow square body rod that sheet metal strip or plastic sheet roll;Described rotating shaft (12) and axle sleeve (13) material are copper.
6. surface sediment sampler according to claim 1, it is characterised in that described steel plate (8) adopts the steel plate of 20 millimeters ~ 30 millimeters.
CN201620138364.0U 2016-02-25 2016-02-25 Superficial deposit thing sample thief Active CN205404176U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620138364.0U CN205404176U (en) 2016-02-25 2016-02-25 Superficial deposit thing sample thief

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620138364.0U CN205404176U (en) 2016-02-25 2016-02-25 Superficial deposit thing sample thief

Publications (1)

Publication Number Publication Date
CN205404176U true CN205404176U (en) 2016-07-27

Family

ID=56446866

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620138364.0U Active CN205404176U (en) 2016-02-25 2016-02-25 Superficial deposit thing sample thief

Country Status (1)

Country Link
CN (1) CN205404176U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105547755A (en) * 2016-02-25 2016-05-04 华南理工大学 Overlying deposit sampler
CN110160840A (en) * 2019-05-27 2019-08-23 中国科学院南海海洋研究所 A kind of glass plate sampler and its method of sampling for collecting microlayer water sample

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105547755A (en) * 2016-02-25 2016-05-04 华南理工大学 Overlying deposit sampler
CN110160840A (en) * 2019-05-27 2019-08-23 中国科学院南海海洋研究所 A kind of glass plate sampler and its method of sampling for collecting microlayer water sample

Similar Documents

Publication Publication Date Title
CN105547755B (en) A kind of surface sediment sampler
CN204422245U (en) Lake grab type sediment sampler
CN104931290A (en) Detachable dual-purpose sampler for shallow sediment and soil and sampling method for detachable dual-purpose sampler
CN205404176U (en) Superficial deposit thing sample thief
CN206057007U (en) The sample collecting apparatus of in-situ acquisition shallow water area Muddy Bottoms deposit
CN105067379B (en) A kind of portable tidal flat paludal sediment sampler and its method for sampling
CN203490104U (en) Grab bucket type bottom sampler
CN203224377U (en) Anchor type surface sediment collection device
CN103543037A (en) Multifunctional grab bucket type water-sludge collector
CN206648849U (en) A kind of grab bucket-type dredger
CN202939054U (en) Sediment sampler
CN209914828U (en) Netting gear for monitoring benthos in river channel
CN211602469U (en) Heavy metal soil pollution remediation fixed point monitoring facilities
CN205620171U (en) Simple and easy stocked anchor formula shallow water superficial deposit thing sample thief
CN204831831U (en) Portable tidal flat paludal sediment sample thief
CN107741340A (en) Double positioning sliding blocks drive underwater mud sampler
CN204740151U (en) Detachable shallow layer bed mud and dual -purpose sample thief of soil
CN208937383U (en) A kind of hydraulic engineering water quality detection sampler
CN102450234A (en) Novel benthonic animal sampler
CN207095902U (en) A kind of column dredger
CN202693375U (en) Multifunctional grab bucket type water-mud collecting device
CN206821691U (en) A kind of device that coral embryonated egg is collected for field
CN101598637B (en) Deep layer section soil sampler and sampling method thereof
CN207881977U (en) Double positioning sliding blocks drive underwater mud sampler
CN210863245U (en) Anchor type mud sampler

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20170619

Address after: Nansha District Fengze road Guangzhou city Guangdong province 511458 No. 106

Patentee after: Guangdong clean water environment Technology Co.,Ltd.

Address before: 510640, No. five, 381 mountain road, Guangzhou, Guangdong, Guangzhou, Tianhe District

Patentee before: South China University of Technology

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Surface sediment sampler

Effective date of registration: 20220120

Granted publication date: 20160727

Pledgee: Bank of China Co.,Ltd. Nansha Branch of Guangdong Free Trade Pilot Area

Pledgor: Guangdong clean water environment Technology Co.,Ltd.

Registration number: Y2022440000015

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20230830

Granted publication date: 20160727

Pledgee: Bank of China Co.,Ltd. Nansha Branch of Guangdong Free Trade Pilot Area

Pledgor: Guangdong clean water environment Technology Co.,Ltd.

Registration number: Y2022440000015