CN207456842U - A kind of undisturbed stratified substrate sludge sampler - Google Patents
A kind of undisturbed stratified substrate sludge sampler Download PDFInfo
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- CN207456842U CN207456842U CN201721618538.4U CN201721618538U CN207456842U CN 207456842 U CN207456842 U CN 207456842U CN 201721618538 U CN201721618538 U CN 201721618538U CN 207456842 U CN207456842 U CN 207456842U
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- 239000010802 sludge Substances 0.000 title abstract description 4
- 239000000758 substrate Substances 0.000 title abstract description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 71
- 238000005070 sampling Methods 0.000 claims abstract description 66
- 239000013049 sediment Substances 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 8
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses a kind of undisturbed stratified substrate sludge samplers, including portable mechanism, sampling mechanism and enclosed mechanism, sampling mechanism includes outer barrel, inner cylinder and inside drum cover, inner cylinder is nested in outer barrel, inner cylinder is divided into multiple inner cylinder sections, multiple inner cylinder sections are ranked sequentially and the end face of adjacent inner cylinder section is bonded, and inside drum cover is fixed on the top of the outer barrel.It samples in operation, it is whole to take out undisturbed stratified substrate sludge sampler after bed mud enters inner cylinder formation mud column, then take out inner cylinder.It is required according to the technology of depth selection, take out the inner cylinder section of corresponding position, take out the mud column in inner cylinder section, when taking out mud column, the piston thrust and tube wall frictional force that mud column is subject to are small, small so as to the deflection of mud column, and the disturbance of bed mud does not occur, and multiple inner cylinder sections so that the delaminating process of bed mud is simple, obtained mud column sample can accurately reflect the actual conditions of bed mud.
Description
Technical Field
The utility model relates to a sediment sampling equipment technical field, concretely relates to undisturbed layering sediment sampler.
Background
Monitoring underwater bottom mud and analyzing pollutant content of water bodies such as lakes, rivers, ponds, shallow seas and the like are important components of water body environment investigation and scientific research. However, stratified collection of bottom mud has been a difficult problem: on one hand, the overwater condition is complex, the sediment is difficult to directly contact from the water surface, and the environment for direct sampling at a short distance is difficult to create; on the other hand, the sediment is of a fluid plastic structure and is easy to disturb.
At present, bottom mud samplers at home and abroad mainly comprise a grab bucket type sampler and a column type sampler. Grab bucket type sampler simple structure, convenient operation, but it can only gather the sample about the sediment top layer degree of depth 20cm, has the sediment sample moreover that the disturbance is big, the sample easily runs off and destroys the scheduling problem, only is used for the sample operation of top layer sediment usually. The column sampler is commonly used for collecting sludge and semi-hard substrate sediment, a column sample is obtained through a column transparent sampling tube vertically inserted into the sediment, and the obtained column sample can clearly reflect the appearance characteristics of a section. The column transparent sampling tube of the existing column sampler is of an integral single-section structure, the sampling length is mostly 60cm-100cm, and the sampling length can be increased to 150cm in a small number. When the collected sediment sample is taken out of the sampling pipe, the sediment sample needs to be pushed out by a piston, and the sediment sample is layered according to the pushing distance of the piston and the sample at the opening section of the sampling pipe. Due to the high water content of the sediment and the fluid plasticity of the sediment, the collected sediment sample can be compacted and seriously disturbed under the action of the thrust of the piston and the friction force of the pipe wall of the sampling pipe. According to field tests, the length of a 100cm columnar sample is shortened by 5-11cm in the pushing process, the shortened length is related to the hardness of bottom mud, it can be seen that the bottom mud is seriously disturbed in the layering process of the conventional columnar sampler, and the obtained layered sample cannot reflect the content of bottom mud pollutants at the actual depth easily.
In conclusion, the conventional grab bucket type sampler and the conventional column sampler have the problem that the stratified sampling of the sediment at different depths cannot be realized under the disturbance-free condition.
Disclosure of Invention
An object of the utility model is to provide a no disturbance layering bed mud sampler for solve the problem that current bed mud sampler can not have the disturbance layering sample.
In order to achieve the above object, the utility model provides a no disturbance layering bed mud sampler, it includes portable mechanism, sampling mechanism and seals the mechanism, the lower extreme of portable mechanism is fixed in sampling mechanism's upper end, seal the mechanism set up in sampling mechanism's lower extreme lateral part, its characterized in that: the sampling mechanism comprises an outer barrel, an inner barrel and an inner barrel cover, the inner barrel is nested in the inner side of the outer barrel, the inner barrel comprises a plurality of inner barrel sections, the inner barrel sections are sequentially arranged and adjacent to each other, the end faces of the inner barrel sections are attached to each other, and the inner barrel cover is fixed to the top end of the outer barrel.
The sampling mechanism further comprises a positioning sheet, and the positioning sheet is arranged at the top end of the outer barrel and used for positioning the outer barrel and the inner barrel cover.
Wherein, the sampling mechanism still includes the drainage hole, the drainage hole set up in inner cylinder cover.
The outer cylinder is a stainless steel pipe or a galvanized pipe, and the inner cylinder is a transparent plastic pipe.
Preferably, the urceolus is the split type urceolus, the split type urceolus includes first outer barrel, the outer barrel of second, fixed slot and annular clamp, first outer barrel with the outer barrel of second forms after closing completely the split type urceolus, first outer barrel with the surface of the outer barrel of second is equipped with the fixed slot, just first outer barrel with the outer closed back of barrel of second, the fixed slot forms complete annular, the annular clamp set up in the fixed slot.
Preferably, the inner wall of the split outer cylinder is provided with one or more annular protrusions for positioning, the inner cylinder further comprises an annular groove matched with the annular protrusions, and the annular groove is formed in the middle of the outer surface of the inner cylinder section.
The portable mechanism comprises a portable pipe, a first portable rod, a second portable rod and a crank connecting rod mechanism; wherein,
the portable tube is a hollow tube;
the first lifting rod is a hollow tube, the first lifting rod is nested on the inner side of the lifting tube, the length of the first lifting rod is greater than that of the lifting tube, the relative positions of the first lifting rod and the lifting tube along the axial direction of the lifting tube are adjustable, and internal threads are arranged inside the top end of the first lifting rod;
the second lifting rod penetrates through the first lifting rod, the length of the second lifting rod is larger than that of the first lifting rod, an external thread matched with the internal thread is arranged on the upper portion of the second lifting rod, the length of the external thread is larger than that of the internal thread, a ring used for rotating the second lifting rod is arranged at the upper end of the second lifting rod, and the lower end of the second lifting rod abuts against the inner cylinder cover;
the crank-link mechanism is provided with a plurality of crank mechanisms, each crank mechanism comprises a crank, a connecting rod and a connecting rod fixing block, one end of each crank is hinged to the lower end of the corresponding first lifting rod, a locking head is arranged at the other end of each crank, one end of each connecting rod is hinged to the middle of each crank, the other end of each connecting rod is hinged to the corresponding connecting rod fixing block, and the connecting rod fixing blocks are arranged on the corresponding portable tubes.
Preferably, the sampling mechanism further comprises a locking groove matched with the locking head in size, and the locking groove is formed in the outer surface of the outer barrel.
The sealing mechanism comprises a return spring, a sealing sheet and a pull rope, one end of the return spring is fixed on the outer barrel, the other end of the return spring is connected with one end of the sealing sheet, and the other end of the sealing sheet is connected with the pull rope.
The sealing mechanism further comprises a stay cord limiting ring, the stay cord limiting ring is arranged on the outer surface of the portable pipe, and the stay cord penetrates through the stay cord limiting ring and a rope knot is arranged at the penetrating end of the stay cord.
The utility model has the advantages of as follows:
the utility model provides a no disturbance layering bed mud sampler, sampling mechanism include urceolus, inner tube and interior cover, and the inner tube nestification is in the inboard of urceolus, and the inner tube divide into a plurality of inner tube sections, and the terminal surface laminating of a plurality of inner tube sections are arranged and adjacent inner tube section in proper order, and interior cover is fixed in the top of urceolus. In the sampling operation, after bottom mud enters the inner cylinder to form a mud column, the undisturbed layered bottom mud sampler is integrally taken out, and then the inner cylinder is taken out. And taking out the inner cylinder section at the corresponding position according to the technical requirement of the sampling depth, taking out the mud column in the inner cylinder section, and cutting a mud column sample by using a cutting ring. Because the length of inner tube section is far less than the length of current column sampler sampling pipe, so when pushing out the mud post through the piston, piston thrust and the pipe wall frictional force that the mud post received are little to the deflection of mud post is little, does not take place the disturbance of bed mud, and a plurality of inner tube sections make the layering process of bed mud simple moreover, and the actual conditions of bed mud can accurately be reflected to the mud post sample that obtains.
Drawings
Fig. 1 is a schematic structural diagram of a disturbance-free stratified sediment sampler provided by an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a sampling mechanism of a disturbance-free layered sediment sampler provided by an embodiment of the present invention.
In the figure: 1-a hand-held mechanism, 2-a sampling mechanism, 3-a sealing mechanism, 4-an outer cylinder, 5-an inner cylinder, 6-an inner cylinder cover, 7-an inner cylinder section, 8-a first outer cylinder, 9-a second outer cylinder, 10-a fixed groove, 11-an annular hoop, 12-an annular bulge, 13-an annular groove, 14-a positioning sheet, 15-a water filtering hole, 16-a hand-held pipe, 17-a first hand-held rod, 18-a second hand-held rod, 19-an annular ring, 20-a crank, 21-a connecting rod, 22-a connecting rod fixed block, 23-a locking head, 24-a locking groove, 25-a reset spring, 26-a sealing sheet, 27-a pull rope, 28-a pull rope limiting ring and 29-a rope knot.
Detailed Description
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1 and 2, the undisturbed layered sediment sampler provided in embodiment 1 is divided into a handheld device 1, a sampling device 2 and a sealing device 3 from top to bottom, wherein the lower end of the handheld device 1 is fixed to the upper end of the sampling device 2 for holding a whole product, and the sealing device 3 is disposed at the lower end side of the sampling device 2 for sealing the sampling device 2.
The sampling mechanism 2 comprises an outer barrel 4, an inner barrel 5 and an inner barrel cover 6, wherein the inner barrel 5 is nested on the inner side of the outer barrel 4, the inner barrel 5 comprises a plurality of inner barrel sections 7, the inner barrel sections 7 are sequentially arranged, the end faces of the adjacent inner barrel sections 7 are attached to each other, and the inner barrel cover 6 is fixed at the top end of the outer barrel 4 and used for plugging the bottom opening of the inner barrel 5 to form a container with one closed end.
Before use, the outer barrel 4 and the inner barrel 5 with corresponding lengths are customized according to the requirement of sampling depth, and after the length of the inner barrel 5 is determined, the number and the length of the inner barrel sections 7 are further determined. In the sampling operation, the bottom mud enters the inner cylinder 5 to form a mud column, then the undisturbed layered bottom mud sampler is integrally taken out, and then the inner cylinder 5 is taken out. And (3) taking out the inner cylinder section 7 at the corresponding position according to the technical requirement of the sampling depth, taking out the mud column in the inner cylinder section 7, and cutting a mud column sample by using a cutting ring. Because the length of inner tube section 7 is far less than the length of current column sampler sampling pipe, at the in-process of taking out the mud post, the deflection of mud post is very little, does not take place the disturbance of bed mud, and a plurality of inner tube sections 7 make the layering process of bed mud simple unusually moreover, and the actual conditions of bed mud can accurately be reflected to the mud post sample that obtains.
In the present embodiment, the sampling mechanism 2 further includes a positioning piece 14, and the positioning piece 14 is disposed at the top end of the outer cylinder 4 and used for positioning the outer cylinder 4 and the inner cylinder cover 6.
In this embodiment, the sampling mechanism 2 further includes a water filtering hole 15, and the water filtering hole 15 is disposed on the inner cylinder cover 6 and is used for discharging water in the inner cylinder 5 and water between a matching gap between the outer cylinder 4 and the inner cylinder 5 out of the sampling mechanism 2.
In the embodiment, the outer cylinder 4 is a stainless steel pipe or a galvanized pipe, the stainless steel pipe or the galvanized pipe is not easy to be corroded, the service life is long, and the inner cylinder 5 cannot be clamped in the outer cylinder 4 due to corrosion of the inner wall of the outer cylinder 4 in the process of taking out the inner cylinder 5, so that the use is convenient; the inner cylinder 5 is a transparent plastic pipe, and the transparent plastic pipe is convenient for workers to observe the actual condition of the mud column.
In a preferred embodiment of this embodiment, the outer cylinder 4 is a split outer cylinder, the split outer cylinder includes a first outer cylinder 8, a second outer cylinder 9, a fixing groove 10 and an annular clamp 11, the first outer cylinder 8 and the second outer cylinder 9 can form a split outer cylinder after being closed, the fixing groove 10 is disposed on the outer surface of the first outer cylinder 8 and the outer surface of the second outer cylinder 9, and after the first outer cylinder 8 and the second outer cylinder 9 are closed, the fixing groove 10 forms a complete ring shape, the annular clamp 11 is disposed in the fixing groove 10, and the first outer cylinder 8 and the second outer cylinder 9 which are closed together are fixed by the annular clamp 11 to form the split outer cylinder. The use of the split outer cylinder avoids the problem that the inner cylinder 5 is difficult to take out of the outer cylinder 4 when larger-particle sand objects are blocked in the outer cylinder 4 and the inner cylinder 5.
In a preferred embodiment of the present embodiment, the inner wall of the split outer cylinder is provided with one or more annular protrusions 12 for positioning, the number of the annular protrusions 12 is determined according to the number of the inner cylinder segments 7 required actually, the distance of the annular protrusions 12 on the axis of the split outer cylinder is set according to the length of the inner cylinder segments 7, the inner cylinder 5 is provided with an annular groove 13 matched with the annular protrusions 12, and the annular groove 13 is arranged in the middle of the outer surface of the inner cylinder segments 7.
Example 2
As shown in fig. 1 and 2, the undisturbed stratified sediment sampler provided in embodiment 2 is divided into a handheld device 1, a sampling device 2 and a sealing device 3 from top to bottom, wherein the lower end of the handheld device 1 is fixed to the upper end of the sampling device 2 for holding a whole product, and the sealing device 3 is disposed at the lower end side of the sampling device 2 for sealing the sampling device 2.
The sampling mechanism 2 comprises an outer barrel 4, an inner barrel 5 and an inner barrel cover 6, wherein the inner barrel 5 is nested on the inner side of the outer barrel 4, the inner barrel 5 comprises a plurality of inner barrel sections 7, the inner barrel sections 7 are sequentially arranged, the end faces of the adjacent inner barrel sections 7 are attached to each other, and the inner barrel cover 6 is fixed at the top end of the outer barrel 4 and used for plugging the bottom opening of the inner barrel 5 to form a container with one closed end.
Before use, the outer barrel 4 and the inner barrel 5 with corresponding lengths are customized according to the requirement of sampling depth, and after the length of the inner barrel 5 is determined, the number and the length of the inner barrel sections 7 are further determined. In the sampling operation, the bottom mud enters the inner cylinder 5 to form a mud column, then the undisturbed layered bottom mud sampler is integrally taken out, and then the inner cylinder 5 is taken out. And (3) taking out the inner cylinder section 7 at the corresponding position according to the technical requirement of the sampling depth, taking out the mud column in the inner cylinder section 7, and cutting a mud column sample by using a cutting ring. Because the length of inner tube section 7 is far less than the length of current column sampler sampling pipe, at the in-process of taking out the mud post, the deflection of mud post is very little, does not take place the disturbance of bed mud, and a plurality of inner tube sections 7 make the layering process of bed mud simple unusually moreover, and the actual conditions of bed mud can accurately be reflected to the mud post sample that obtains.
In the present embodiment, the handle mechanism 1 includes a handle tube 16, a first handle bar 17, a second handle bar 18, and a crank link mechanism, wherein:
the handle tube 16 is a hollow tube.
The first lifting rod 17 is a hollow pipe, the first lifting rod 17 is nested on the inner side of the lifting pipe 16, the length of the first lifting rod 17 is larger than that of the lifting pipe 16, the first lifting rod 17 can slide in the lifting pipe 16 along the axial direction of the lifting pipe 16, the relative positions of the first lifting rod 17 and the lifting pipe are adjustable, and internal threads are arranged at any position inside the first lifting rod 17.
The second lifting rod 18 penetrates through the first lifting rod 17, the length of the second lifting rod 18 is larger than that of the first lifting rod 17, the second lifting rod 18 is provided with an external thread matched with the internal thread, the length of the external thread is larger than that of the internal thread, the upper end of the second lifting rod 18 is provided with a ring 19 used for rotating the second lifting rod 18, and the lower end of the second lifting rod 18 abuts against the inner cylinder cover 6.
The crank link mechanism is provided with a plurality of crank mechanisms, the crank mechanisms comprise cranks 20, connecting rods 21 and connecting rod fixing blocks 22, one ends of the cranks 20 are hinged to the lower ends of the first lifting rods 17, locking heads 23 are arranged at the other ends of the cranks 20, one ends of the connecting rods 21 are hinged to the middle portions of the cranks 20, the other ends of the connecting rods 21 are hinged to the connecting rod fixing blocks 22, and the connecting rod fixing blocks 22 are arranged on the portable tubes 16.
Before use, the product is firstly assembled: the portable tube 16 is held, the first portable rod 17 is pushed downwards to slide in the portable tube 16, the crank-link mechanism moves at the moment to open the locking head 23, then the portable mechanism 1 is aligned with the sampling mechanism 2, the first portable rod 17 is pulled upwards to slowly close the locking head 23 and lock the outer cylinder 4, then the second portable rod 18 is rotated through the ring 19 to move the second portable rod 18 downwards relative to the first portable rod 17 and finally is pressed against the inner cylinder cover 6 of the sampling mechanism 2, the limiting of the portable tube 16 and the first portable rod 17 is completed, and the assembly is finished.
In a preferred embodiment of this embodiment, the sampling mechanism 2 further comprises a locking groove 24 matching with the size of the locking head, and the locking groove 24 is arranged on the outer surface of the outer cylinder 4. During assembly, the locking head 23 is slowly inserted into the locking groove 24, closing and locking the outer cylinder 4.
Example 3
As shown in fig. 1 and 2, the undisturbed stratified sediment sampler provided in embodiment 3 is divided into a hand-held mechanism 1, a sampling mechanism 2 and a sealing mechanism 3 from top to bottom, wherein the lower end of the hand-held mechanism 1 is fixed at the upper end of the sampling mechanism 2 for holding a whole product, and the sealing mechanism 3 is arranged at the lower end side of the sampling mechanism 2 for sealing the sampling mechanism 2.
The sampling mechanism 2 comprises an outer barrel 4, an inner barrel 5 and an inner barrel cover 6, wherein the inner barrel 5 is nested on the inner side of the outer barrel 4, the inner barrel 5 comprises a plurality of inner barrel sections 7, the inner barrel sections 7 are sequentially arranged, the end faces of the adjacent inner barrel sections 7 are attached to each other, and the inner barrel cover 6 is fixed at the top end of the outer barrel 4 and used for plugging the bottom opening of the inner barrel 5 to form a container with one closed end.
Before use, the outer barrel 4 and the inner barrel 5 with corresponding lengths are customized according to the requirement of sampling depth, and after the length of the inner barrel 5 is determined, the number and the length of the inner barrel sections 7 are further determined. In the sampling operation, the bottom mud enters the inner cylinder 5 to form a mud column, then the undisturbed layered bottom mud sampler is integrally taken out, and then the inner cylinder 5 is taken out. And (3) taking out the inner cylinder section 7 at the corresponding position according to the technical requirement of the sampling depth, taking out the mud column in the inner cylinder section 7, and cutting a mud column sample by using a cutting ring. Because the length of inner tube section 7 is far less than the length of current column sampler sampling pipe, at the in-process of taking out the mud post, the deflection of mud post is very little, does not take place the disturbance of bed mud, and a plurality of inner tube sections 7 make the layering process of bed mud simple unusually moreover, and the actual conditions of bed mud can accurately be reflected to the mud post sample that obtains.
In this embodiment, the sealing mechanism 3 includes a return spring 25, a sealing sheet 26 and a pulling rope 27, the shape of the sealing sheet 26 matches with the bottom of the sampling portion 2, a movable silk screen is arranged on the edge of the sealing sheet 26 for sealing the bottom opening of the inner tube 4, one end of the return spring 25 is fixed to the outer tube 4, the other end of the return spring 25 is connected with one end of the sealing sheet 26, and the other end of the sealing sheet 26 is connected with the pulling rope 27.
In this embodiment, the sealing mechanism 3 further includes a rope-pulling limiting ring 28, the rope-pulling limiting ring 28 is disposed on the outer surface of the handle tube 16, the rope 27 passes through the rope-pulling limiting ring 28, and the penetrating end of the rope 27 is provided with a knot 29.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The utility model provides a no disturbance layering bed mud sampler, its includes portable mechanism, sampling mechanism and seals the mechanism, the lower extreme of portable mechanism is fixed in the upper end of sampling mechanism, seal the mechanism set up in the lower extreme lateral part of sampling mechanism, its characterized in that: the sampling mechanism comprises an outer barrel, an inner barrel and an inner barrel cover, the inner barrel is nested in the inner side of the outer barrel, the inner barrel comprises a plurality of inner barrel sections, the inner barrel sections are sequentially arranged and adjacent to each other, the end faces of the inner barrel sections are attached to each other, and the inner barrel cover is fixed to the top end of the outer barrel.
2. The undisturbed stratified sediment sampler of claim 1 wherein: the sampling mechanism further comprises a positioning sheet, and the positioning sheet is arranged at the top end of the outer barrel and used for positioning the outer barrel and the inner barrel cover.
3. The undisturbed stratified sediment sampler of claim 1 wherein: the sampling mechanism further comprises a water filtering hole, and the water filtering hole is formed in the inner cylinder cover.
4. The undisturbed stratified sediment sampler of claim 1 wherein: the outer cylinder is a stainless steel pipe or a galvanized pipe, and the inner cylinder is a transparent plastic pipe.
5. The undisturbed stratified sediment sampler of claim 1 wherein: the urceolus is the split type urceolus, the split type urceolus includes the outer barrel of first outer barrel, second, fixed slot and annular clamp, first outer barrel with the outer barrel of second forms after closing the split type urceolus, first outer barrel with the surface of the outer barrel of second is equipped with the fixed slot, just first outer barrel with the outer barrel of second is closed after, the fixed slot forms complete annular, the annular clamp set up in the fixed slot.
6. The undisturbed stratified sediment sampler of claim 5 wherein: the inner wall of split urceolus is equipped with one or more annular protruding that are used for the location, the inner tube still include with annular protruding complex ring channel, the ring channel set up in the middle part of inner tube section surface.
7. The undisturbed stratified sediment sampler of any one of claims 1 to 6 wherein: the hand-held mechanism comprises a hand-held tube, a first hand-held rod, a second hand-held rod and a crank connecting rod mechanism; wherein,
the portable tube is a hollow tube;
the first lifting rod is a hollow tube, the first lifting rod is nested on the inner side of the lifting tube, the length of the first lifting rod is greater than that of the lifting tube, the relative positions of the first lifting rod and the lifting tube along the axial direction of the lifting tube are adjustable, and internal threads are arranged inside the top end of the first lifting rod;
the second lifting rod penetrates through the first lifting rod, the length of the second lifting rod is larger than that of the first lifting rod, an external thread matched with the internal thread is arranged on the upper portion of the second lifting rod, the length of the external thread is larger than that of the internal thread, a ring used for rotating the second lifting rod is arranged at the upper end of the second lifting rod, and the lower end of the second lifting rod abuts against the inner cylinder cover;
the crank-link mechanism is provided with a plurality of crank mechanisms, each crank mechanism comprises a crank, a connecting rod and a connecting rod fixing block, one end of each crank is hinged to the lower end of the corresponding first lifting rod, a locking head is arranged at the other end of each crank, one end of each connecting rod is hinged to the middle of each crank, the other end of each connecting rod is hinged to the corresponding connecting rod fixing block, and the connecting rod fixing blocks are arranged on the corresponding portable tubes.
8. The undisturbed stratified sediment sampler of claim 7 wherein: the sampling mechanism further comprises a locking groove matched with the locking head in size, and the locking groove is formed in the outer surface of the outer barrel.
9. The undisturbed stratified sediment sampler of any one of claims 1 to 6 wherein: the sealing mechanism comprises a return spring, a sealing sheet and a pull rope, one end of the return spring is fixed to the outer barrel, the other end of the return spring is connected with one end of the sealing sheet, and the other end of the sealing sheet is connected with the pull rope.
10. The undisturbed stratified sediment sampler of claim 9 wherein: the sealing mechanism further comprises a stay cord limiting ring, the stay cord limiting ring is arranged on the outer surface of the portable pipe, and the stay cord penetrates through the stay cord limiting ring and a rope knot is arranged at the penetrating end of the stay cord.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721618538.4U CN207456842U (en) | 2017-11-28 | 2017-11-28 | A kind of undisturbed stratified substrate sludge sampler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721618538.4U CN207456842U (en) | 2017-11-28 | 2017-11-28 | A kind of undisturbed stratified substrate sludge sampler |
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| CN207456842U true CN207456842U (en) | 2018-06-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668806A (en) * | 2019-02-28 | 2019-04-23 | 湖南科技大学 | Snow layer density measuring system and use method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668806A (en) * | 2019-02-28 | 2019-04-23 | 湖南科技大学 | Snow layer density measuring system and use method |
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