CN112229684A - Water quality monitoring stratified sampling device - Google Patents
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- CN112229684A CN112229684A CN202011093713.9A CN202011093713A CN112229684A CN 112229684 A CN112229684 A CN 112229684A CN 202011093713 A CN202011093713 A CN 202011093713A CN 112229684 A CN112229684 A CN 112229684A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 238000005070 sampling Methods 0.000 title claims abstract description 55
- 238000012544 monitoring process Methods 0.000 title claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 104
- 238000004804 winding Methods 0.000 claims description 39
- 230000009471 action Effects 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 2
- 230000003028 elevating effect Effects 0.000 abstract description 5
- 238000012806 monitoring device Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/16—Devices for withdrawing samples in the liquid or fluent state with provision for intake at several levels
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Abstract
The invention relates to the technical field of water quality monitoring devices, in particular to a water quality monitoring stratified sampling device. This kind of water quality monitoring layering sampling device, the casing is upper end open-ended cavity structure, shells inner wall installs a plurality of chains and receives unwinding mechanism, the casing top is provided with a plurality of chain guiding mechanism, a plurality of sampling mechanism are installed to the outer wall of casing, unwinding mechanism is received to the chain, chain guiding mechanism and sampling mechanism's quantity and position one-to-one, chain on the chain is received unwinding mechanism passes behind the chain guiding mechanism and is connected with sampling mechanism, the inside connecting rod that is provided with of casing, the upper end of connecting rod stretches out and is connected with elevating system from the casing, elevating system stretches into the casing the aquatic of the different degree of depth, unwinding mechanism is received to the chain drives sampling mechanism and takes a sample. The water quality monitoring stratified sampling device is simple in structure and convenient to maintain, can effectively avoid water quality mixing, and greatly improves the efficiency of stratified water taking.
Description
Technical Field
The invention relates to the technical field of water quality monitoring devices, in particular to a water quality monitoring stratified sampling device.
Background
With the development of social economy, scientific progress and improvement of the living standard of people, the requirements of people on the water quality of drinking water are continuously improved, and the water quality standard of the drinking water is correspondingly continuously developed and improved. Water quality sampling is an important link of water quality monitoring, and accurate extraction of water body samples at specific time and spatial positions is required; when taking a sample to the deep water, often need carry out the sample of a plurality of layers of depths according to the degree of depth gradient, when carrying out the layering sample at present, generally adopt a water intaking container to transfer the appointed degree of depth, be equipped with the apron that can one-way open and shut on the water intaking container, transfer the in-process and open, promote the in-process and close to realize sample work. Such a layered sampling method for water quality monitoring has many disadvantages, such as: the water quality is easy to mix, and the sampling accuracy is influenced; the operation of putting in the sampling container and taking out the sampling container needs to be carried out for many times in the multilayer sampling process, and the efficiency is low. In order to solve the problem of water sample mixing and improve the sampling efficiency, a sampling device controlled by an electromagnetic valve to be opened is provided, the electromagnetic valve is opened to sample after reaching the specified depth, and the device is complex in general structure and inconvenient to maintain.
Disclosure of Invention
The invention aims to provide a water quality monitoring stratified sampling device, which overcomes the defects of the prior art, has a simple structure, is convenient to maintain, can effectively avoid water quality mixing, and greatly improves the stratified water taking efficiency.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a water quality monitoring layered sampling device comprises a shell, wherein the shell is of a cavity structure with an opening at the upper end, a plurality of chain winding and unwinding mechanisms are mounted on the inner wall of the shell, a plurality of chain guide mechanisms are arranged at the top of the shell, a plurality of sampling mechanisms are mounted on the outer wall of the shell, the chain winding and unwinding mechanisms, the chain guide mechanisms and the sampling mechanisms are in one-to-one correspondence in number and position, chains on the chain winding and unwinding mechanisms penetrate through the chain guide mechanisms and then are connected with the sampling mechanisms, connecting rods are arranged inside the shell, the upper ends of the connecting rods extend out of the shell and are connected with a lifting mechanism, the lifting mechanism extends the shell into water at different depths, and the chain;
the sampling mechanism comprises a needle cylinder, a connecting pipe, a threaded rod, a first piston rod, a second piston and a second piston rod, wherein the connecting pipe is arranged on the side wall of the needle cylinder; the shape of the lower end of the first piston is matched with the shape of the lower end of the inner cavity of the needle cylinder, the upper end of the first piston is connected with the lower end of a first piston rod, the upper end of the first piston rod extends out of the needle cylinder and is connected with the chain, the lower end of the first piston is connected with the upper end of a second piston rod, the lower end of the second piston rod extends out of the lower end of the needle cylinder and is connected with a second piston, and the second piston is used for plugging the lower port of the needle cylinder; the first piston completely seals the lower port of the needle cylinder in the initial state, the second piston is positioned outside the needle cylinder at the moment, the lifting mechanism drives the shell to move downwards towards the water body, when the first piston reaches the position of the first layer, the first chain winding and unwinding mechanism winds the chain, the first piston rod moves upwards under the pulling of the chain, when the first piston moves to the upper end of the inner cavity of the needle cylinder, the chain winding and unwinding mechanism stops winding, the second piston is just plugged at the lower end of the needle cylinder like a plug, the water body in the needle cylinder between the second piston and the first piston is the water body for sampling the layer, the lifting mechanism continues to drive the shell to move downwards, when the lifting mechanism reaches the position of the second layer, the second chain winding and unwinding mechanism winds the chain and repeats the same steps as the water taking operation of the first layer, the following layers of water samples are continuously taken by adopting the mode until the water samples are taken, and the lifting mechanism drives the shell to return to the position above the water surface to, in order to distinguish each layer water sample, unwinding mechanism corresponds the serial number with the chain, strictly operates according to the serial number.
Further, the shell comprises a first shell section, a second shell section and a third shell section from bottom to top, the lower end of the first shell section is a conical balancing weight, the upper end of the first shell section is of a cylindrical structure, a first groove is formed in the upper end of the first shell section, and a first lug plate is arranged at the upper end of the outer wall of the first shell section; the second shell section is of a cylindrical structure and is formed by splicing a left semi-cylindrical section and a right semi-cylindrical section, a side groove is formed in the splicing surface of the left semi-cylindrical section from top to bottom, a side flange matched with the side groove is formed in the splicing surface of the right semi-cylindrical section from top to bottom, the upper end surface and the lower end surface of the second shell section are provided with first bosses, and the upper end and the lower end of the outer wall of the second shell section are provided with second lug plates; the third shell section is of a cylindrical structure, a second groove is formed in the lower end face of the third shell section, and a third lug plate is arranged at the lower end of the outer wall of the third shell section; after the second shell section is spliced, the upper end of the second shell section is clamped with the third shell section and then is locked with the second lug plate and the third lug plate through the bolts and the nuts, the lower end of the second shell section is clamped with the first shell section and then is locked with the second lug plate and the first lug plate through the bolts and the nuts, the first shell section, the second shell section and the third shell section can be rapidly disassembled through taking down the bolts and the nuts, and the second shell section can be separated from the left and right and then taken down, so that the maintenance of a structure installed inside the shell body is facilitated.
Furthermore, the chain winding and unwinding mechanism is installed in an inner cavity of the second shell section, and the second shell section is disassembled and then divided into two semi-cylinder sections left and right, so that the visual field of the chain winding and unwinding mechanism is enlarged during maintenance, and the chain winding and unwinding mechanism is more convenient to maintain.
Further, unwinding mechanism is received to chain includes driving motor, action wheel, first pivot and engaging lug board, and two a set of fixes on the inner wall of casing of engaging lug board, installs first pivot between two engaging lug boards, is fixed with the action wheel in the first pivot, and the top of chain is fixed on the action wheel, and the main part winding of chain is on the action wheel, and driving motor drives first pivot corotation or upset, and the chain is rolling or unreeling on the action wheel.
Further, chain guiding mechanism includes support frame, second pivot and follows the driving wheel, and the support frame is V type structure, and two a set of upper ends at the casing of fixing of support frame, two support frame V type structure's upper ends all are provided with the second pivot, all install in the second pivot from the driving wheel.
Furthermore, one driven wheel of the chain guide mechanism is positioned right above the driving wheel, and the other driven wheel of the chain guide mechanism is positioned right above the sampling mechanism, so that the chain can smoothly pull the first piston rod vertically and upwards.
Furthermore, position sensor is embedded in one side of the lower end of the needle cylinder, whether the needle cylinder reaches the target water level is judged through the position sensor, the position sensor can be replaced by a pressure sensor, and whether the target layer is reached is judged according to the water pressure.
Furthermore, the outer wall of cylinder is provided with two connecting pipes at least, improves the stability of cylinder installation on the casing.
Furthermore, the lower end face of the first piston is provided with a threaded connecting hole, the upper end of the outer wall of the second piston rod is provided with threads, and the second piston rod is connected with the first piston in a screwing mode.
Further, elevating system is the hydraulic stem, or is electric telescopic handle, or for the cylinder, or for electric block, when electing electric block, the balancing weight of first shell section can ensure that the casing sinks smoothly.
The invention has the beneficial effects that: compared with the prior art, the water quality monitoring stratified sampling device has the following advantages: (1) the first piston completely seals the lower port of the needle cylinder in the initial state, the second piston is positioned outside the needle cylinder at the moment, the lifting mechanism drives the shell to move downwards towards the water body, when the first layer is reached, the first chain winding and unwinding mechanism winds the chain, the first piston rod moves upwards under the pulling of the chain, when the first piston moves to the upper end of the inner cavity of the needle cylinder, the chain winding and unwinding mechanism stops winding, the second piston is just plugged at the lower end of the needle cylinder like a plug, the water body in the needle cylinder between the second piston and the first piston is the water body for sampling at the layer, the lifting mechanism continuously drives the shell to move downwards, when the shell reaches the position of the second layer, the second chain winding and unwinding mechanism winds the chain, the same steps as the water taking operation of the first layer are repeated, the water samples of the next layers are continuously taken in the mode until the water samples are taken completely, and the lifting mechanism drives the shell to return to the position above the water surface to take down the sampling mechanism to detect the water bodies of all layers; (2) after the second shell section is detached, the second shell section is divided into two semi-cylindrical sections left and right, so that the visual field of the chain winding and unwinding mechanism is enlarged during maintenance, and the maintenance is more convenient.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the structural connection of the present invention (the arrangement of the shell segments is not shown in the figure);
FIG. 3 is a schematic view of the housing structure of the present invention;
FIG. 4 is an enlarged view of the second shell segment of the present invention;
the chain type chain taking and unwinding device comprises a shell 1, a first shell section 101, a first groove 1011, a first lug plate 1012, a second shell section 102, a semi-cylindrical section 1021, a groove 1022 side, a flange 1023 side, a first boss 1024, a second lug plate 1025, a third shell section 103, a second groove 1031, a third lug plate 1032, a chain taking and unwinding mechanism 2, a driving wheel 201, a first rotating shaft 203, a lug plate 203-connected, a chain 204, a chain guide mechanism 3, a 301 support frame 301, a second rotating shaft 302, a driven wheel 303, a 4 sampling mechanism, a cylinder 401, a 402 connecting pipe, a 403 threaded rod 403, a first piston 404, a first piston rod 405, a second piston 406, a second piston rod 407 and a connecting rod 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In the embodiment shown in fig. 1-4, a water quality monitoring layered sampling device comprises a shell 1, wherein the shell 1 is a cavity structure with an open upper end, a plurality of chain winding and unwinding mechanisms 2 are mounted on the inner wall of the shell 1, a plurality of chain guide mechanisms 3 are arranged at the top of the shell 1, a plurality of sampling mechanisms 4 are mounted on the outer wall of the shell 1, the chain winding and unwinding mechanisms 2, the chain guide mechanisms 3 and the sampling mechanisms 4 are in one-to-one correspondence in number and position, a chain on the chain winding and unwinding mechanism 2 penetrates through the chain guide mechanisms 3 and then is connected with the sampling mechanisms 4, a connecting rod 5 is arranged inside the shell 1, the upper end of the connecting rod 5 extends out of the shell 1 and is connected with a lifting mechanism, the lifting mechanism extends the shell 1 into water with different depths, and the chain;
the sampling mechanism 4 comprises a needle cylinder 401, a connecting pipe 402, a threaded rod 403, a first piston 404, a first piston rod 405, a second piston 406 and a second piston rod 407, the connecting pipe 402 is arranged on the side wall of the needle cylinder 401, internal threads are arranged on the inner wall of the connecting pipe 402, a threaded hole is arranged on the outer wall of the shell 1, one end of the threaded rod 403 is screwed into the threaded hole, the other end of the threaded rod 403 is screwed into the connecting pipe 402, the shell 1 and the needle cylinder 401 are kept still, and the shell 1 and the needle cylinder 401 can be connected or separated by screwing the threaded rod 403; the shape of the lower end of the first piston 404 is matched with the shape of the lower end of the inner cavity of the needle cylinder 401, the upper end of the first piston 404 is connected with the lower end of a first piston rod 405, the upper end of the first piston rod 405 extends out of the needle cylinder 401 and is connected with a chain, the lower end of the first piston 404 is connected with the upper end of a second piston rod 407, the lower end of the second piston rod 407 extends out of the lower end of the needle cylinder 401 and is connected with a second piston 406, and the second piston 406 is used for plugging the lower port of the needle cylinder 401; the first piston 404 completely seals the lower port of the needle cylinder 401 in the initial state, at this time, the second piston 406 is located outside the needle cylinder 401, the lifting mechanism drives the housing 1 to move downward toward the water body, when the position of the first layer is reached, the first chain winding and unwinding mechanism 2 winds the chain corresponding to the first chain winding and unwinding mechanism, the first piston rod 405 moves upward under the pulling of the chain, when the first piston 404 moves to the upper end of the inner cavity of the needle cylinder 401, the chain winding and unwinding mechanism 2 stops winding, at this time, the second piston 406 is just plugged at the lower end of the needle cylinder 401 like a plug, the water body in the needle cylinder 401 between the second piston 406 and the first piston 404 is the water body sampled at the layer, the lifting mechanism continues to drive the housing 1 to move downward, when the position of the second layer is reached, the second chain winding and unwinding mechanism 2 winds the chain corresponding to the first layer, and the same steps as the water taking operation of the first layer are repeated, the water samples of the later, taking the completion until the water sample, elevating system drives more than 1 return surface of water of casing, takes off the sampler, 4 to each layer water detect can, in order to distinguish each layer water sample, unwinding mechanism 2 corresponds the serial number with the chain is received to sampling mechanism 4, strictly operates according to the serial number.
In this embodiment, the housing 1 includes, from bottom to top, a first housing section 101, a second housing section 102, and a third housing section 103, where the lower end of the first housing section 101 is a tapered weight block, the upper end of the first housing section 101 is a cylindrical structure, the upper end of the first housing section 101 is provided with a first groove 1011, and the upper end of the outer wall of the first housing section 101 is provided with a first ear plate 1012; the second shell section 102 is of a cylindrical structure, the second shell section 102 is formed by splicing a left half cylinder section 1021 and a right half cylinder section 1021, a side groove 1022 is formed in the splicing surface of the left half cylinder section 1021 from top to bottom, a side flange 1023 matched with the side groove 1022 is formed in the splicing surface of the right half cylinder section 1021 from top to bottom, the upper end surface and the lower end surface of the second shell section 102 are respectively provided with a first boss 1024, and the upper end and the lower end of the outer wall of the second shell section 102 are respectively provided with a second lug plate 1025; the third shell section 103 is in a cylindrical structure, a second groove 1031 is formed in the lower end surface of the third shell section 103, and a third ear plate 1032 is arranged at the lower end of the outer wall of the third shell section 103; after the second shell section 102 is spliced, the upper end of the second shell section 102 is clamped with the third shell section 103 and then is locked with the second lug plate 1025 and the third lug plate 1032 through bolts and nuts, after the lower end of the second shell section is clamped with the first shell section 101, the second lug plate 1025 and the first lug plate 1012 are locked through bolts and nuts, the first shell section 101, the second shell section 102 and the third shell section 103 can be rapidly disassembled through taking down the bolts and nuts, and the second shell section 102 can be separated left and right and then taken down, so that the maintenance of the structure mounted inside the shell 1 is facilitated.
In this embodiment, the chain winding and unwinding mechanism 2 is installed in the inner cavity of the second casing section 102, and the second casing section 102 is detached and then divided into two semi-cylindrical sections 1021 around the second casing section 102, so that the view of the chain winding and unwinding mechanism 2 is enlarged during maintenance, and the maintenance is more convenient.
In this embodiment, the chain winding and unwinding mechanism 2 includes a driving motor (not shown in the figure), a driving wheel 201, a first rotating shaft 202 and a connecting lug plate 203, two sets of the connecting lug plates 203 are fixed on the inner wall of the casing 1, the first rotating shaft 202 is installed between the two connecting lug plates 203, the driving wheel 201 is fixed on the first rotating shaft 202, the start end of the chain 204 is fixed on the driving wheel 201, the main body of the chain 204 is wound on the driving wheel 201, the driving motor drives the first rotating shaft 202 to rotate forward or reverse, and the chain 204 winds or unwinds on the driving wheel 201.
In this embodiment, the chain guide mechanism 3 includes a support frame 301, a second rotating shaft 302 and a driven wheel 303, the support frame 301 is a V-shaped structure, two sets of the support frame 301 are fixed at the upper end of the casing 1, the second rotating shaft 302 is arranged at the upper ends of the two support frames 301V-shaped structures, and the driven wheel 303 is arranged on the second rotating shaft 302.
In this embodiment, one driven pulley 303 of the chain guide mechanism 3 is located directly above the driving pulley 201, and the other driven pulley 303 is located directly above the sampling mechanism 4, so as to ensure that the chain smoothly pulls the first piston rod 405 vertically upward.
In this embodiment, a position sensor (not shown in the figure) is embedded in one side of the lower end of the needle cylinder 401, and the position sensor is used for determining whether the needle cylinder reaches the target water level, and the position sensor can be replaced by a pressure sensor to determine whether the needle cylinder reaches the target layer according to the water pressure.
In this embodiment, the outer wall of the syringe 401 is provided with at least two connecting tubes 402, so as to improve the stability of the syringe mounted on the housing.
In this embodiment, a threaded connection hole is formed in a lower end surface of the first piston 404, a thread is formed in an upper end of an outer wall of the second piston rod 407, and the second piston rod 407 is screwed with the first piston 404.
In this embodiment, elevating system is the hydraulic stem, or is electric telescopic handle, or for the cylinder, or for electric block, when electing electric block, the balancing weight of first shell section can ensure that the casing sinks smoothly.
The working principle is as follows: the invention relates to a water quality monitoring stratified sampling device, a first piston 404 completely seals a lower port of a needle cylinder 401 in an initial state, a second piston 406 is positioned at the outer side of the needle cylinder 401 at the moment, a lifting mechanism drives a shell 1 to move downwards into a water body, when the position of a first layer is reached, a first chain winding and unwinding mechanism 2 winds a chain corresponding to the first chain winding and unwinding mechanism, a first piston rod 405 moves upwards under the pulling of the chain, when the first piston 404 moves to the upper end of an inner cavity of the needle cylinder 401, the chain winding and unwinding mechanism 2 stops winding, at the moment, the second piston 406 is plugged at the lower end of the needle cylinder 401 just like a plug, the water body in the needle cylinder 401 between the second piston 406 and the first piston 404 is the water body sampled at the layer, the lifting mechanism continuously drives the shell 1 to move downwards, when the position of a second layer is reached, the second chain winding and unwinding mechanism 2 winds the chain corresponding to the first layer, and the same steps as the water taking, the method is adopted to continuously take the next layers of water samples until the water samples are completely taken, the lifting mechanism drives the shell 1 to return to the position above the water surface, the sampler is taken down, 4 the water bodies in all layers are detected, and in order to distinguish the water samples in all layers, the sampling mechanism 4 and the chain winding and unwinding mechanism 2 are correspondingly numbered and strictly operated according to the numbers; after the second casing section 102 is detached, the second casing section 102 is divided into two semi-cylindrical sections 1021 on the left and right, so that the view of the chain winding and unwinding mechanism 2 is enlarged during maintenance, and the maintenance is more convenient.
The above embodiments are only specific examples of the present invention, and the protection scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any suitable changes or modifications made by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a water quality monitoring stratified sampling device which characterized in that: the sampling device comprises a shell, wherein the shell is a cavity structure with an opening at the upper end, a plurality of chain winding and unwinding mechanisms are mounted on the inner wall of the shell, a plurality of chain guide mechanisms are arranged at the top of the shell, a plurality of sampling mechanisms are mounted on the outer wall of the shell, the chain winding and unwinding mechanisms, the chain guide mechanisms and the sampling mechanisms are in one-to-one correspondence in number and position, chains on the chain winding and unwinding mechanisms penetrate through the chain guide mechanisms and then are connected with the sampling mechanisms, connecting rods are arranged inside the shell, the upper ends of the connecting rods extend out of the shell and are connected with a lifting mechanism, the lifting mechanism extends the shell into water at different depths;
the sampling mechanism comprises a needle cylinder, a connecting pipe, a threaded rod, a first piston rod, a second piston and a second piston rod, wherein the connecting pipe is arranged on the side wall of the needle cylinder, an inner thread is arranged on the inner wall of the connecting pipe, a threaded hole is formed in the outer wall of the shell, one end of the threaded rod is screwed into the threaded hole, the other end of the threaded rod is screwed into the connecting pipe, the shape of the lower end of the first piston is matched with that of the lower end of the inner cavity of the needle cylinder, the upper end of the first piston is connected with the lower end of the first piston rod, the upper end of the first piston rod extends out of the needle cylinder and is connected with a chain, the lower end of the first piston is connected with the upper end of the second piston rod, the.
2. The water quality monitoring stratified sampling device of claim 1, wherein: the shell comprises a first shell section, a second shell section and a third shell section from bottom to top, wherein the lower end of the first shell section is a conical balancing weight, the upper end of the first shell section is of a cylindrical structure, a first groove is formed in the upper end of the first shell section, and a first lug plate is arranged at the upper end of the outer wall of the first shell section; the second shell section is of a cylindrical structure and is formed by splicing a left semi-cylindrical section and a right semi-cylindrical section, a side groove is formed in the splicing surface of the left semi-cylindrical section from top to bottom, a side flange matched with the side groove is formed in the splicing surface of the right semi-cylindrical section from top to bottom, the upper end surface and the lower end surface of the second shell section are provided with first bosses, and the upper end and the lower end of the outer wall of the second shell section are provided with second lug plates; the third shell section is of a cylindrical structure, a second groove is formed in the lower end face of the third shell section, and a third lug plate is arranged at the lower end of the outer wall of the third shell section; after the second shell section is spliced, the upper end of the second shell section is clamped with the third shell section and then is locked with the second lug plate and the third lug plate through bolts and nuts, and the lower end of the second shell section is clamped with the first shell section and then is locked with the second lug plate and the first lug plate through bolts and nuts.
3. The water quality monitoring stratified sampling device of claim 1, wherein: and the chain winding and unwinding mechanism is arranged in the inner cavity of the second shell section.
4. The water quality monitoring stratified sampling device of claim 1, wherein: unwinding mechanism is received to chain includes driving motor, action wheel, first pivot and engaging lug board, and two a set of fixes on the inner wall of casing of engaging lug board, install first pivot between two engaging lug boards, be fixed with the action wheel in the first pivot, the top of chain is fixed on the action wheel, and the main part winding of chain is on the action wheel, and driving motor drives first pivot corotation or upset, and the chain is rolling or unreeling on the action wheel.
5. The water quality monitoring stratified sampling device of claim 1, wherein: chain guiding mechanism includes support frame, second pivot and follows the driving wheel, and the support frame is V type structure, and two a set of upper ends at the casing of fixing of support frame, the upper end of two support frame V type structures all is provided with the second pivot, all installs in the second pivot from the driving wheel.
6. The water quality monitoring stratified sampling device of claim 1, wherein: one driven wheel of the chain guide mechanism is positioned right above the driving wheel, and the other driven wheel is positioned right above the sampling mechanism.
7. The water quality monitoring stratified sampling device of claim 1, wherein: a position sensor is embedded in one side of the lower end of the needle cylinder.
8. The water quality monitoring stratified sampling device of claim 1, wherein: the outer wall of the needle cylinder is at least provided with two connecting pipes.
9. The water quality monitoring stratified sampling device of claim 1, wherein: the lower end face of the first piston is provided with a threaded connecting hole, the upper end of the outer wall of the second piston rod is provided with threads, and the second piston rod is connected with the first piston in a screwing mode.
10. The water quality monitoring stratified sampling device of claim 1, wherein: the lifting mechanism is a hydraulic rod, or an electric telescopic rod, or an air cylinder, or an electric hoist.
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| CN202011093713.9A CN112229684A (en) | 2020-10-14 | 2020-10-14 | Water quality monitoring stratified sampling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296607A (en) * | 2022-12-01 | 2023-06-23 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Sampler for ground water in field environment investigation |
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