CN114441222B - Deep sampling device of wetland sediment - Google Patents

Deep sampling device of wetland sediment Download PDF

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Publication number
CN114441222B
CN114441222B CN202210136882.9A CN202210136882A CN114441222B CN 114441222 B CN114441222 B CN 114441222B CN 202210136882 A CN202210136882 A CN 202210136882A CN 114441222 B CN114441222 B CN 114441222B
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China
Prior art keywords
wall
sampling tube
sampling
plate
sediment
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CN202210136882.9A
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CN114441222A (en
Inventor
凌祯
王涛
朱维伟
徐杉
孟涵
赵凯嵩
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Kunming University
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Kunming University
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Publication of CN114441222A publication Critical patent/CN114441222A/en
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    • 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
    • G01N1/04Devices for withdrawing samples in the solid state, e.g. by cutting
    • G01N1/08Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit

Abstract

The invention relates to the technical field of wetland sediment detection, in particular to a wetland sediment deep sampling device, which comprises a mounting seat, wherein the outer wall of the mounting seat is provided with a vertical rod, the end part of the vertical rod is provided with a fixed plate, the outer wall of the fixed plate is provided with a first driving part, the driving end of the first driving part is provided with a screw rod, the outer wall of the screw rod is provided with a lifting plate, a sampling tube is fixedly arranged on the lifting plate in a penetrating way, the outer wall of the sampling tube is provided with an air pump, the ventilation end of the air pump is communicated with the sampling tube through a communicating pipe, the outer wall of the mounting seat is provided with a fixed port matched with the sampling tube, and four corners of the outer wall of the mounting seat are respectively provided with a floating block, and the device further comprises: the sampling mechanism is arranged in the sampling tube and used for collecting sediment into the sampling tube; a travelling mechanism. The invention effectively prevents sediment with other depths from entering the sampling tube, effectively realizes fixed-depth and fixed-point sampling, and has better use effect.

Description

Deep sampling device of wetland sediment
Technical Field
The invention relates to the technical field of wetland sediment detection, in particular to a wetland sediment deep sampling device.
Background
Wetland sediment detection refers to the detection of collected sediment samples in order to study the laws of water pollutant accumulation, distribution, conversion and migration, and the wetland sediment is usually sampled by a sampling device before detection.
At present, the existing sampling device still has a certain disadvantage, in the use process, the sediment on the surface layer of the wetland can be sampled, when the sampling is deeper, the sediment on the surface layer is easy to mix with the sediment on the deep layer, so that the later detection data is inaccurate, and therefore, the design of the deep sampling device for the sediment on the wetland is needed to solve the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a wetland sediment deep sampling device.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a deep sampling device of wetland sediment, includes the mount pad, the outer wall of mount pad is provided with the pole setting, and the tip of pole setting is provided with the fixed plate, the outer wall of fixed plate is provided with driving piece one, and driving piece one's drive end is provided with the lead screw, the outer wall of lead screw is provided with the lifter plate, it is provided with the sampling tube to run through fixedly on the lifter plate, the outer wall of sampling tube is provided with the air pump, and the ventilation end of air pump is linked together through communicating pipe and sampling tube, the fixed mouth with sampling tube matched with is seted up to the outer wall of mount pad, and four corners of mount pad outer wall all are provided with the kicking block, still includes:
the sampling mechanism is arranged in the sampling tube and used for collecting sediment into the sampling tube;
the advancing mechanism is arranged on the mounting seat and used for driving the device to move.
As still further aspects of the invention: the sampling mechanism comprises a piston plate arranged in a sampling tube, a sealing ring is arranged at a gap between the piston plate and the sampling tube, a movable rod is fixedly arranged on the piston plate in a penetrating mode, a baffle is arranged at one end of the movable rod, and a stop block is further arranged on the inner wall of the sampling tube.
As still further aspects of the invention: the inner wall of the sampling tube is fixedly provided with a limiting ring, and the movable rod is arranged in the limiting ring in a sliding manner.
As still further aspects of the invention: the travelling mechanism comprises a lantern ring, the lantern ring is fixedly arranged on the outer wall of the bottom of the mounting seat through a mounting rod, a rotating shaft is rotationally arranged on the lantern ring, paddles which are distributed annularly at equal distances are arranged at two ends of the rotating shaft, a driven wheel is further arranged on the outer wall of the rotating shaft, a driving part II is arranged on the outer wall of the mounting seat, a rotating wheel is arranged at the driving end of the driving part II, and the rotating wheel is connected with the driven wheel through crawler transmission.
As still further aspects of the invention: the outer wall of mount pad is connected with the limiting plate through the dead lever, and the sampling tube runs through the limiting plate.
As still further aspects of the invention: the outer wall slip of pole setting is provided with the fly leaf, the outer wall of fixed plate is provided with the extensible member, and is connected between the flexible end of extensible member and the outer wall of fly leaf, the outer wall of fly leaf is provided with the bracing piece, and the tip of bracing piece is provided with the kickboard.
As still further aspects of the invention: the outer wall of one side of the floating plate is provided with a mounting groove, and a push plate is connected in the mounting groove through an elastic piece.
Compared with the prior art, the invention has the beneficial effects that:
according to the wetland sediment deep sampling device provided by the invention, the device can be driven to walk on the horizontal or muddy surface of the wetland through the travelling mechanism, when the device moves to a sampling point, the driving piece can drive the screw rod to rotate, the screw rod can drive the lifting plate and the sampling tube to move downwards together, so that the sampling tube passes through the fixed port and is inserted into the wetland, at the moment, the sampling mechanism is in a state of sealing the tube port of the sampling tube, after the sampling tube reaches the sampling depth, air can be blown into the sampling tube through the air pump, so that the sampling mechanism can be moved out of the sampling tube, the sediment can enter the sampling tube, then the air in the sampling tube is pumped out through the air pump, the sampling mechanism can be reset, the tube port of the sampling tube is plugged again, the sediment with other depths in the upward moving process is effectively prevented from entering the sampling tube, the fixed-depth fixed-point sampling is effectively realized, and the use effect is better.
Drawings
FIG. 1 is a schematic cross-sectional view of a deep sampling device for wet land sediments according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a sampling mechanism of a deep sampling device for wet land sediments according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a traveling mechanism of a deep sampling device for wet land sediments according to an embodiment of the present invention;
fig. 4 is a schematic view of a floating plate structure of a deep sampling device for wet land sediments according to an embodiment of the present invention.
In the figure: 1-mount, 2-fixed port, 3-floating block, 4-floating plate, 5-elastic piece, 6-push plate, 7-mounting groove, 8-bracing piece, 9-movable plate, 10-telescopic piece, 11-fixed plate, 12-upright pole, 13-driving piece I, 14-air pump, 15-communicating pipe, 16-lifting plate, 17-sampling tube, 18-sampling mechanism, 19-lead screw, 20-travelling mechanism, 21-spacing ring, 22-piston plate, 23-sealing ring, 24-movable rod, 25-spacing plate, 26-block, 27-block, 28-driving piece II, 29-rotating wheel, 30-track, 31-lantern ring, 32-rotating shaft, 33-paddle and 34-driven wheel.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent.
As shown in fig. 1, the deep sampling device for the wetland sediment provided in an embodiment of the present invention includes a mounting seat 1, an outer wall of the mounting seat 1 is provided with a vertical rod 12, an end portion of the vertical rod 12 is provided with a fixing plate 11, an outer wall of the fixing plate 11 is provided with a first driving member 13, a specific structure of the first driving member 13 is not limited, in this embodiment, preferably, the first driving member 13 adopts a servo motor, a driving end of the first driving member 13 is provided with a screw rod 19, an outer wall of the screw rod 19 is provided with a lifting plate 16, a sampling cylinder 17 is fixedly arranged on the lifting plate 16 in a penetrating manner, an air pump 14 is arranged on an outer wall of the sampling cylinder 17, an air end of the air pump 14 is communicated with the sampling cylinder 17 through a communicating pipe 15, a fixing port 2 matched with the sampling cylinder 17 is provided on an outer wall of the mounting seat 1, and floating blocks 3 are respectively provided at four corners of an outer wall of the mounting seat 1, and the deep sampling device further includes:
a sampling mechanism 18, the sampling mechanism 18 being disposed in the sampling tube 17 for collecting sediment into the sampling tube 17;
the travelling mechanism 20, the travelling mechanism 20 is set up on the mount 1, is used for driving the device to move.
The device can be driven to walk on the horizontal or muddy wetland surface through the travelling mechanism 20, when the device moves to a sampling point, the first driving part 13 can drive the screw rod 19 to rotate, the screw rod 19 can drive the lifting plate 16 and the sampling tube 17 to move downwards together, the sampling tube 17 passes through the fixed port 2 and is inserted into the wetland, the sampling mechanism 18 is in a state of sealing the tube port of the sampling tube 17, after the sampling tube 17 reaches the sampling depth, the air can be blown into the sampling tube 17 through the air pump 14, the sampling mechanism 18 can be moved out of the sampling tube 17, the sediment can enter the sampling tube 17, then the air in the sampling tube 17 is pumped out through the air pump 14, the sampling mechanism 18 can be reset, the tube port of the sampling tube 17 is plugged again, the sediment with other depths in the upward moving process is effectively prevented from entering the sampling tube 17, the fixed-depth fixed-point sampling is effectively realized, and the use effect is better.
As an embodiment of the present invention, referring to fig. 2, the sampling mechanism 18 includes a piston plate 22 disposed in the sampling tube 17, a sealing ring 23 is disposed at a gap between the piston plate 22 and the sampling tube 17, a movable rod 24 is fixedly disposed on the piston plate 22, a baffle 27 is disposed at one end of the movable rod 24, a stop 26 is disposed on an inner wall of the sampling tube 17, when air in the sampling tube 17 is pumped out by the air pump 14, the piston plate 22 moves in the sampling tube 17, the movable rod 24 on the piston plate 22 drives the baffle 27 to move until the baffle 27 contacts with the stop 26, so that the baffle 27 can perform a plugging function on a nozzle of the sampling tube 17, when the sampling tube 17 moves down, the sediment with other depth can be well prevented from entering the sampling tube 17, and when the sampling is needed, the sediment can be inserted into the sampling tube 17 by the air pump 14, at this time, the sediment can be extruded between the baffle 27 and the piston plate 22, and the air pump 14 can reset the baffle 27, so that the sediment can be collected into the sampling tube 17 and can be prevented from entering the sampling tube 17 with other depth.
As an embodiment of the present invention, referring to fig. 2, the inner wall of the sampling tube 17 is fixedly provided with a limiting ring 21, and the movable rod 24 is slidably disposed in the limiting ring 21, so that the stability of the movable rod 24 during movement can be improved by the limiting ring 21, and the use effect is better.
As an embodiment of the present invention, referring to fig. 3, the travelling mechanism 20 includes a collar 31, the collar 31 is fixedly disposed on the bottom outer wall of the mounting seat 1 through a mounting rod, a rotating shaft 32 is rotatably disposed on the collar 31, paddles 33 distributed in an equidistant annular shape are disposed at two ends of the rotating shaft 32, a driven wheel 34 is further disposed on the outer wall of the rotating shaft 32, a driving member second 28 is disposed on the outer wall of the mounting seat 1, the specific structure of the driving member second 28 is not limited, in this embodiment, preferably, the driving member second 28 adopts a servo motor, the driving end of the driving member second 28 is provided with a rotating wheel 29, the rotating wheel 29 and the driven wheel 34 are in transmission connection through a track 30, the rotating wheel 29 can be driven to rotate through the driving member second 28, the rotating wheel 29 can drive the driven wheel 34 on the rotating shaft 32 through the track 30, so that the paddles 33 on the rotating shaft 32 can be driven to walk on the water surface, when the water level is low, the paddles 33 can directly contact with the surface of the wetland, and the travelling purpose can be achieved as well, and the use effect is better.
As an embodiment of the present invention, referring to fig. 2, the outer wall of the mounting seat 1 is connected with a limiting plate 25 through a fixing rod, and the sampling tube 17 penetrates through the limiting plate 25, so that stability of the sampling tube 17 during moving can be effectively improved through the limiting plate 25, and the use effect is better.
As an embodiment of the present invention, referring to fig. 1 and 4, the outer wall of the upright 12 is slidably provided with the movable plate 9, the outer wall of the fixed plate 11 is provided with the telescopic member 10, the specific structure of the telescopic member 10 is not limited, in this embodiment, preferably, the telescopic member 10 adopts a hydraulic cylinder, the telescopic end of the telescopic member 10 is connected with the outer wall of the movable plate 9, the outer wall of the movable plate 9 is provided with the supporting rod 8, and the end of the supporting rod 8 is provided with the floating plate 4, and the movable plate 9 can be driven to move on the upright 12 by the telescopic member 10, so that the floating plate 4 connected on the movable plate 9 through the supporting rod 8 can contact with the wetland surface, which can play a role in laterally supporting the device, and effectively improve the stability of the device.
As an embodiment of the present invention, referring to fig. 1 and 4, an installation groove 7 is formed on an outer wall of one side of the floating plate 4, and a push plate 6 is connected in the installation groove 7 through an elastic member 5, and the specific structure of the elastic member 5 is not limited.
When the device is used, the device can be driven to walk on a horizontal or muddy wetland surface through the travelling mechanism 20, when the device moves to a sampling point, the first driving part 13 can drive the screw rod 19 to rotate, the screw rod 19 can drive the lifting plate 16 and the sampling tube 17 to move downwards together, the sampling tube 17 passes through the fixed port 2 and is inserted into the wetland, the sampling mechanism 18 is in a state of sealing the tube port of the sampling tube 17, after the sampling tube 17 reaches the sampling depth, air can be blown into the sampling tube 17 through the air pump 14, the sampling mechanism 18 can be moved out of the sampling tube 17, sediment can enter the sampling tube 17, then the air in the sampling tube 17 is pumped out through the air pump 14, the sampling mechanism 18 can be reset, the tube port of the sampling tube 17 is blocked again, sediment in other depths in the upward moving process can be effectively prevented from entering the sampling tube 17, the fixed-depth fixed-point sampling is effectively realized, and the use effect is better.
It should be noted that, although the present disclosure describes embodiments, not every embodiment includes only a single embodiment, and the description is for clarity only, and those skilled in the art should understand that the embodiments of the disclosure may be combined appropriately to form other embodiments that can be understood by those skilled in the art.

Claims (5)

1. The utility model provides a deep sampling device of wetland sediment, includes the mount pad, its characterized in that, the outer wall of mount pad is provided with the pole setting, and the tip of pole setting is provided with the fixed plate, the outer wall of fixed plate is provided with driving piece one, and driving piece one's drive end is provided with the lead screw, the outer wall of lead screw is provided with the lifter plate, it is provided with the sampling tube to run through fixedly on the lifter plate, the outer wall of sampling tube is provided with the air pump, and the end of ventilating of air pump is linked together through communicating pipe and sampling tube, the fixed mouth with sampling tube matched with has been seted up to the outer wall of mount pad, and four corners of mount pad outer wall all are provided with the kicking block, still includes:
the sampling mechanism is arranged in the sampling tube and used for collecting sediment into the sampling tube, the sampling mechanism comprises a piston plate arranged in the sampling tube, a sealing ring is arranged at a gap between the piston plate and the sampling tube, a movable rod is fixedly arranged on the piston plate in a penetrating manner, a baffle is arranged at one end of the movable rod, a stop block is further arranged on the inner wall of the sampling tube, a limiting ring is fixedly arranged on the inner wall of the sampling tube, and the movable rod is slidably arranged in the limiting ring;
the advancing mechanism is arranged on the mounting seat and used for driving the device to move.
2. The wetland sediment deep sampling device according to claim 1, wherein the travelling mechanism comprises a collar, the collar is fixedly arranged on the outer wall of the bottom of the mounting seat through a mounting rod, a rotating shaft is rotatably arranged on the collar, paddles distributed in an annular mode at equal distances are arranged at two ends of the rotating shaft, a driven wheel is further arranged on the outer wall of the rotating shaft, a driving part II is arranged on the outer wall of the mounting seat, a rotating wheel is arranged on the driving end of the driving part II, and the rotating wheel is connected with the driven wheel through crawler transmission.
3. The deep sampling device for wetland sediments according to claim 2, wherein the outer wall of the mounting seat is connected with a limiting plate through a fixing rod, and the sampling tube penetrates through the limiting plate.
4. The deep sampling device for wetland sediments according to claim 1, wherein the outer wall of the vertical rod is provided with a movable plate in a sliding manner, the outer wall of the fixed plate is provided with a telescopic piece, the telescopic end of the telescopic piece is connected with the outer wall of the movable plate, the outer wall of the movable plate is provided with a supporting rod, and the end part of the supporting rod is provided with a floating plate.
5. The deep sampling device for wet land sediments as claimed in claim 4, wherein the outer wall of one side of the floating plate is provided with a mounting groove, and a pushing plate is connected in the mounting groove through an elastic piece.
CN202210136882.9A 2022-02-15 2022-02-15 Deep sampling device of wetland sediment Active CN114441222B (en)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115290383B (en) * 2022-10-09 2022-12-23 蓝天众成环保工程有限公司 Environmental protection engineering is with detecting soil sampling device
CN116793751B (en) * 2023-08-21 2023-11-14 山西农业大学 Improved mud sampler

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU962438A1 (en) * 1974-12-18 1982-09-30 Всесоюзный Научно-Исследовательский Институт Морской Геологии И Геофизики Sampler for taking samples of bottom sediments
CN101793635A (en) * 2009-12-18 2010-08-04 杭州电子科技大学 Shallow water low-disturbed sediment sampler
CN206862696U (en) * 2017-06-29 2018-01-09 中化地质矿山总局山东地质勘查院 River sediment sampling device of steerable degree of depth
CN111896308A (en) * 2020-08-14 2020-11-06 郝栋 Sampling device and sampling method for oil field geological exploration
CN212964135U (en) * 2020-10-13 2021-04-13 王森雨 Marine geological sediment sampler
CN112729918A (en) * 2020-12-30 2021-04-30 杨则栋 Hydraulic engineering is with sampling device who has sample protection machanism
CN213364324U (en) * 2020-08-12 2021-06-04 周薇莹 Water environment detects uses sampling device
CN214309590U (en) * 2021-01-18 2021-09-28 中国地质科学院岩溶地质研究所 Portable low-disturbance sediment sampling device
CN214471901U (en) * 2021-03-24 2021-10-22 甘肃中建市政工程勘察设计研究院有限公司 Engineering foundation detection sampling device
CN113686612A (en) * 2021-09-17 2021-11-23 嵇胜娥 Soil sampling device for environmental protection

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110398391B (en) * 2018-04-24 2020-05-08 水利部交通运输部国家能源局南京水利科学研究院 High dam deep reservoir layering water sample and sediment column sample integrated artificial intelligence sampling device
CN209606155U (en) * 2019-03-11 2019-11-08 万肖利 A kind of environmental project detection device
CN212539699U (en) * 2020-06-10 2021-02-12 重庆科融建筑工程质量检测有限公司 Foundation detects uses sampling device
CN212321181U (en) * 2020-07-01 2021-01-08 山东省鲁南地质工程勘察院(山东省地勘局第二地质大队) Water sampling equipment for investigation of coal mining subsidence land
CN212780078U (en) * 2020-08-11 2021-03-23 沈阳环境科学研究院 River sediment sampling detection device
CN112525605A (en) * 2020-11-19 2021-03-19 甘肃省科学院地质自然灾害防治研究所 Portable groundwater depthkeeping sampling device suitable for desert area
CN112945645B (en) * 2021-03-17 2021-10-29 青海九零六工程勘察设计院 Pneumatic control type groundwater depth-setting sampler
CN214894300U (en) * 2021-06-10 2021-11-26 广东穗通环境科技有限公司 Sampling device for monitoring water quality of environmental protection engineering

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU962438A1 (en) * 1974-12-18 1982-09-30 Всесоюзный Научно-Исследовательский Институт Морской Геологии И Геофизики Sampler for taking samples of bottom sediments
CN101793635A (en) * 2009-12-18 2010-08-04 杭州电子科技大学 Shallow water low-disturbed sediment sampler
CN206862696U (en) * 2017-06-29 2018-01-09 中化地质矿山总局山东地质勘查院 River sediment sampling device of steerable degree of depth
CN213364324U (en) * 2020-08-12 2021-06-04 周薇莹 Water environment detects uses sampling device
CN111896308A (en) * 2020-08-14 2020-11-06 郝栋 Sampling device and sampling method for oil field geological exploration
CN212964135U (en) * 2020-10-13 2021-04-13 王森雨 Marine geological sediment sampler
CN112729918A (en) * 2020-12-30 2021-04-30 杨则栋 Hydraulic engineering is with sampling device who has sample protection machanism
CN214309590U (en) * 2021-01-18 2021-09-28 中国地质科学院岩溶地质研究所 Portable low-disturbance sediment sampling device
CN214471901U (en) * 2021-03-24 2021-10-22 甘肃中建市政工程勘察设计研究院有限公司 Engineering foundation detection sampling device
CN113686612A (en) * 2021-09-17 2021-11-23 嵇胜娥 Soil sampling device for environmental protection

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Zeng YC,et al.Research on mining method of submarine natural gas hydrates based on a double-channel lift pump.《Advanced materials design and mechanics》.2013,第569卷第509-516页. *
污水浓度对高原湖泊人工湿地处理率的影响研究;凌祯,等;《水力发电学报》;第31卷(第5期);第133-140页 *
滇东南典型岩溶湿地沉积物不同形态磷分布特征;詹乃才,等;《浙江农业学报》;第28卷(第10期);第1772-1780页 *

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