CN214309726U

CN214309726U - Multi-sample sampler for underground water sample detection

Info

Publication number: CN214309726U
Application number: CN202023109482.4U
Authority: CN
Inventors: 张玉涛
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-09-28
Anticipated expiration: 2030-12-22

Abstract

The utility model discloses a multi-sample sampler for underground water sample detection, which comprises a supporting frame, wherein the supporting frame comprises a connecting rod, an upper supporting plate and a lower supporting plate, a plurality of fixing seats are fixedly connected on the lower supporting plate, a plurality of fixing seats are all provided with telescopic sampling containers, each sampling container comprises a telescopic cavity, a fixed cover body and a movable cover body, a water inlet is arranged on the movable cover body, a sealing element for sealing the water inlet is arranged above the movable cover body and on the lower side surface of the upper supporting plate, a water pressure driving device for driving the electromagnetic valve to work under the control of water pressure is arranged on the connecting rod, the utility model realizes that a plurality of sampling containers respectively collect water samples in different water layers through the operation of a plurality of electromagnetic valves under different water pressures, and after the operation of sampling container water sampling was accomplished, the sealing member was stifled sealed with the water inlet, can effectively avoid appearing multilayer water mixing phenomenon in the sampling container.

Description

Multi-sample sampler for underground water sample detection

Technical Field

The utility model relates to a groundwater sample technical field specifically is a many samples sampler for groundwater examines appearance.

Background

The underground water under different environments is buried, distributed and moved differently, the current method for sampling the deep underground water mainly uses a water pump to pump water for sampling, the obtained water sample is mostly a surface water sample or a mixed water sample, the defect that the targeted extraction is inconvenient exists, the layering performance is very strong for the underground water or other water samples with certain depth, the content difference of substances in the water samples with different depths is large, and the use requirement cannot be met; and current sampler has the not tight shortcoming of sample connection after gathering the water sample, when the device was in other water layers, mixes into the moisture of other water layers from sample connection department easily, leads to the sampling precision to have the error, therefore we have proposed a many samples sampler that is used for groundwater to examine the appearance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a many samples sampler for groundwater examines appearance to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a multi-sample sampler for underground water sampling comprises a support frame suspended in the underground water by a pull rope, the support frame comprises a connecting rod, an upper supporting plate and a lower supporting plate, two ends of the connecting rod are respectively and fixedly connected with the central positions of the upper supporting plate and the lower supporting plate, a plurality of fixing seats are fixedly connected on the lower supporting plate, a telescopic sampling container is arranged on each fixing seat, the sampling container comprises a telescopic cavity, a fixed cover body and a movable cover body, the movable cover body is provided with a water inlet, a sealing element for sealing the water inlet is arranged above the movable cover body and on the lower side surface of the upper supporting plate, the lower lateral surface of the lower supporting plate is provided with a plurality of electromagnetic valves, the electromagnetic valves are connected with the movable cover body through the clamping pieces to realize that the telescopic cavity is fixed in a compression state, and the connecting rod is provided with a water pressure driving device used for controlling the operation of the driving electromagnetic valves under the control of water pressure.

Preferably, the sealing member includes the base, the lower extreme of base is rotated through the torsional spring and is connected with the turning block, it is used for sealed the pad to be stained with on the downside of turning block, it turns round the post to be equipped with on the lateral wall of turning block, be equipped with the notch that is used for the joint to turn round the post on the inside wall of water inlet.

Preferably, the clamping piece comprises a clamping rod, a sliding rod, a second spring and a clamping block, the clamping rod is fixed on two sides of the movable cover body, the sliding rod is fixed on an output shaft of the electromagnetic valve, and the clamping block is arranged at the end part of the clamping rod through the second spring and used for clamping the clamping rod.

Preferably, the hydraulic driving device comprises a sleeve, a third spring, a floating block, an adjusting rod, a movable contact and a plurality of fixed contacts, the floating block is connected inside the sleeve in a sliding mode through the third spring, the floating block drives the movable contact on the adjusting rod to move through water pressure, and the movable contact is enabled to be in contact with the fixed contacts respectively under different water pressures to drive the corresponding electromagnetic valves to work.

Preferably, a waterproof cover for preventing water is fixedly installed below the lower supporting plate, and a power supply device for supplying power to the electromagnetic valve is installed inside the waterproof cover.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a slider receives the water pressure effect on different water layers, make the slider overcome the elasticity of third spring order about the mobile contact and remove, and make the mobile contact respectively with a plurality of fixed contact under the water pressure of difference, then make a plurality of solenoid valves work under different water pressures, realize that a plurality of sample containers gather the water sample respectively in the water layer of difference, and sample container gathers the water sample operation back that finishes, the sealing member is stifled sealed with the water inlet, can effectively avoid appearing multilayer water mixing phenomenon in the sample container, reach the pertinence and gather, be applicable to the strong multilayer groundwater sample operation of layering.

Drawings

Fig. 1 is a schematic view I of the overall structure of the present invention;

fig. 2 is a schematic view II of the overall structure of the present invention;

FIG. 3 is a cross-sectional view of the connecting rod, the upper supporting plate and the hydraulic driving device of the present invention;

fig. 4 is a cross-sectional view of the lower supporting plate, the waterproof cover and the power supply device of the present invention;

fig. 5 is a cross-sectional view of the lower stay plate, the clamping rod, the sliding rod and the clamping block of the present invention;

FIG. 6 is a cross-sectional exploded view of the sealing member, water inlet and notch of the present invention;

FIG. 7 is a cross-sectional view of the sampling container, the fixing base, the rotating block and the base according to the present invention;

fig. 8 is an exploded view of the fixing base, the fixing cover, the ring groove and the fixing bolt of the present invention;

fig. 9 is an exploded view of the lower supporting plate, the solenoid valve and the clamping rod of the present invention;

fig. 10 is a schematic circuit diagram of the power supply device, the solenoid valve, the movable contact, and the fixed contact according to the present invention.

In the figure: 1. the device comprises a support frame, 101, a connecting rod, 102, an upper support plate, 103, a lower support plate, 2, a pull rope, 3, a fixed seat, 4, a sampling container, 401, a telescopic cavity, 402, a fixed cover body, 403, a movable cover body, 404, a water inlet, 4041, a notch, 405, a blocking block, 406, a first spring, 5, a sealing element, 501, a base, 502, a torsion spring, 503, a rotating block, 504, a torsion column, 6, an electromagnetic valve, 7, a clamping element, 701, a clamping rod, 702, a sliding rod, 703, a second spring, 704, a clamping block, 8, a hydraulic driving device, 801, a sleeve, 802, a third spring, 803, a floating block, 804, an adjusting rod, 805, a movable contact, 806, a fixed contact, 9, a waterproof cover, 10, a power supply device, 11, a ring groove, 12 and a fixing bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-10, the present invention provides a technical solution: a multi-sample sampler for underground water sample detection comprises a support frame 1 suspended in underground water by a pull rope 2, wherein the pull rope 2 can be wound on a winding wheel, the winding wheel can realize the retraction of the pull rope 2 through positive and negative rotation, the winding wheel can be driven to rotate by a motor, the support frame 1 comprises a connecting rod 101, an upper supporting plate 102 and a lower supporting plate 103, two ends of the connecting rod 101 are respectively and fixedly connected with the central positions of the upper supporting plate 102 and the lower supporting plate 103, a plurality of fixing seats 3 are fixedly connected on the lower supporting plate 103, a plurality of fixing seats 3 are respectively provided with a telescopic sampling container 4, the sampling container 4 comprises a telescopic cavity 401, a fixed cover body 402 and a movable cover body 403, two ends of the telescopic cavity 401 are respectively sealed by the fixed cover body 402 and the movable cover body 403, the fixed cover body 402 is fixed on the fixing seat 3, in order to realize the convenient disassembly and assembly of the sampling container 4, the outer side wall of the fixed cover body 402 is provided with a ring groove 11, the outer side wall of the fixing base 3 is fixedly connected with a fixing bolt 12, after the fixing cover 402 is placed inside the fixing base 3, by screwing the fixing bolt 12 inward, after the threaded end of the fixing bolt 12 is inserted into the inside of the ring groove 11, the fixed cover 402 is fixed on the fixed seat 3, so as to realize the rapid installation of the sampling container 4, when in disassembly, the sampling container 4 can be rapidly disassembled only by unscrewing the fixed bolt 12, a water inlet 404 is arranged on the movable cover body 403, a sealing element 5 for sealing the water inlet 404 is arranged above the movable cover body 403 and on the lower side surface of the upper supporting plate 102, a plurality of electromagnetic valves 6 are arranged on the lower side surface of the lower supporting plate 103, the electromagnetic valves 6 are clamped with the movable cover body 403 through the clamping pieces 7 to realize that the telescopic cavity 401 is fixed in a compression state, and the connecting rod 101 is provided with a water pressure driving device 8 which is controlled by water pressure to drive the electromagnetic valve 6 to work.

In order to stably seal the water inlet 404 after the water sample is collected, specifically, the sealing member 5 includes a base 501, the base 501 is fixedly mounted on the lower side surface of the upper supporting plate 102, the lower end of the base 501 is rotatably connected with a rotating block 503 through a torsion spring 502, one end of the torsion spring 503 is fixedly connected with the base 501, the other end of the torsion spring 503 is fixedly connected with the rotating block 503, when the rotating block 503 rotates relative to the base 501, the torsion spring 503 generates a torsion force for reverse rotation reset, a sealing gasket for sealing is adhered to the lower side surface of the rotating block 503, a torsion column 504 is arranged on the side wall of the rotating block 503, and a notch 4041 for clamping the torsion column 504 is arranged on the inner side wall of the water inlet 404;

in order to expand the telescopic cavity 401, a first spring 406 is arranged between the fixed cover body 402 and the movable cover body 403, the first spring 406 has certain elasticity and can expand the telescopic cavity 401, when the telescopic cavity 401 is expanded by the first spring 406, the movable cover body 403 moves upwards, and at the moment, the water inlet 404 is blocked and sealed by the rotating block 503;

the process of blocking the water inlet 404 by the turning block 503 is as follows: when the water inlet 404 contacts the rotating block 503, the torsion column 504 contacts with the slope of the notch 4041 first, when the water inlet 404 moves upwards, the torsion column 504 contacts with the uppermost end of the slope first, then the torsion column 504 slides downwards along the slope (as denoted by "XP" in fig. 7) to further promote the rotating block 503 to rotate against the torsion force of the torsion spring 502, when the torsion column 504 slides to the bottom end of the slope of 4041, the rotating block 503 is rotated and reset by the reverse torsion force of the torsion spring 502, at this time, the torsion column 504 is clamped to the clamping position of the notch 4041 (as denoted by "KJW" in fig. 7), so that the sealing gasket below the rotating block 503 can stably seal the water inlet 404, and the water inlet 404 cannot be opened no matter which water pressure layer the device is in, and the phenomenon of multi-layer water mixing is avoided;

in addition, in order to make flexible cavity 401 can not get into the water sample under compression state, the inside fixedly connected with blanking cover 405 of fixed lid 402, when flexible cavity 401 was in compression state, blanking cover 405 can stop up water inlet 404, had prevented the automatic entering of water sample, and after flexible cavity 401 expanded, the water sample just can follow water inlet 404 and get into in flexible cavity 401.

In order to compress and fix the telescopic cavity 401 after the movable cover 403 moves downward, specifically, the clamping member 7 includes a clamping rod 701, a sliding rod 702, a second spring 703 and a clamping block 704, the clamping rod 701 is fixed on two sides of the movable cover 403, the sliding rod 702 is fixed on the output shaft of the solenoid valve 6, the clamping block 704 is arranged at the end of the clamping rod 701 through the second spring 703 for clamping the clamping rod 701, as shown in fig. 5, a clamping slot is formed at the lower end of the clamping rod 701, when the sampling container 4 is installed, after the fixed cover 402 is fixed on the fixed seat 3, the movable cover 403 is pressed downward, the clamping rod 701 slides downward along with the movable cover, and the lower end of the clamping rod 701 penetrates through the side wall of the lower support plate 103 and presses the clamping block 704 to retract into the inside of the sliding rod 702, when the clamping slot 403 of the clamping rod 701 is aligned with the clamping block 704, the second spring 703 rebounds and clamps the clamping block 704 in the clamping slot, at this moment, the movable cover body 403 is fixed by the clamping rod 702, then the telescopic cavity 401 is fixed in a compression state, when water samples are collected, the electromagnetic valve 6 is started, at this moment, the output shaft of the electromagnetic valve 6 pushes the sliding rod 702 to slide, then the clamping block 704 is made to slide towards one side of the clamping groove and then is separated from the clamping connection, and at this moment, the telescopic cavity 401 can be upwards opened to realize the operation of adopting the water samples.

In order to make the device perform drive control sampling by different water pressures, specifically, the water pressure drive device 8 comprises a sleeve 801, a third spring 802, a floating block 803, an adjusting rod 804, a moving contact 805 and a plurality of fixed contacts 806, as shown in fig. 3, the outer side wall of the adjusting rod 804 is provided with threads, the adjusting rod 805 is in meshed connection with the floating block 803 through the threads, when the adjusting rod 805 is rotated, the adjusting rod 805 moves relative to the floating block 803, so that the moving contact 805 moves relative to the fixed contacts 806, and then the position of a water pressure water layer of initial sampling is adjusted, the floating block 803 is connected in the sleeve 801 in a sliding mode through the third spring 802, as shown in fig. 3, the sleeve 801 is fixed at the upper end of the connecting rod 101, the upper end of the sleeve 801 is in an open state, the third spring 802 has the elastic force of upwards bouncing the floating block 803, and the underground water is in contact with the outer side surface of the floating block 803, when the device is at different depths, underground water can press the floating block 803 to cause the floating block 803 to slide against the elastic force of the third spring 802, the floating block 803 drives the moving contact 805 on the adjusting rod 804 to move through water pressure, so that the moving contact 805 is respectively contacted with a plurality of fixed contacts 806 under different water pressures to drive the corresponding solenoid valves 6 to work, the number of the fixed contacts 806 is equal to that of the solenoid valves 6, each fixed contact 806 is respectively corresponding to each solenoid valve 6, and when the moving contact 805 is contacted with one fixed contact 806, the solenoid valve 6 corresponding to the moving contact 805 is started.

In order to make the electromagnetic valve 6 obtain power, specifically, a waterproof cover 9 for water prevention is fixedly installed below the lower supporting plate 103, a power supply device 10 for supplying power to the electromagnetic valve 6 is installed inside the waterproof cover 9, as shown in fig. 4, the electromagnetic valve 6 is covered by the waterproof cover 9, when the device is put into water, the electromagnetic valve 6 is isolated from the groundwater, in addition, the power supply device 10 (the power supply device 10 can be a storage battery) is also covered by the waterproof cover 9 to achieve the waterproof function, and the power supply device 10 not only plays a role of supplying power to the electromagnetic valve 6, the self weight of the power supply device 10 plays a role of counter weight to assist the device to submerge deep in the groundwater, in addition, the sliding rod 702 is covered by a sealing shell for preventing the groundwater from flowing into the inside of the waterproof cover 9 from the inserting port of the clamping rod 701, and the sealing shell is further provided with a relief hole which is sealed and slides with the output shaft of the electromagnetic valve 6, the output shaft of the electromagnetic valve 6 is connected with the sliding rod 702 after penetrating through the side wall of the sealing shell.

The working principle is as follows: if the underground water is directly exposed to the outside (for example, in a karst cave), the device is directly suspended to the inside of the underground water through the pull rope 2, if the underground water is buried underground (below a rock stratum), an observation hole is opened through drilling equipment, and the device is placed into the inside of the underground water through the pull rope 2 from the observation hole; continuously releasing the pull rope 2 to enable the device to continuously move to the deep part of the underground water;

when the device is used, the adjusting rod 804 is rotated in advance to enable the adjusting rod 804 to move on the floating block 803, so that the initial position of the moving contact 805 is adjusted, and water samples with different depths are taken by the device, for example, when the adjusting rod 804 is rotated to enable the floating block 803 to be subjected to water pressure of 20kPa (about 2 meters in depth), the floating block 803 drives the moving contact 805 to be in contact with a first fixed contact 806 (counting the first fixed contact 806 from the top), and when the water pressure applied to the floating block 803 increases by 10kPa, the moving contact 805 is separated from the previous fixed contact 806 and moves downwards to be in contact with the next fixed contact 806, and at the moment, the device respectively samples water layers with water pressures of 20kPa, 30kPa and 40kPa … …;

the following description will take the collection of water samples of water layer with water pressure of 20kPa, 30kPa and 40kPa as an example;

in the downward moving process of the device, the water pressure of underground water is continuously increased, at this time, the floating block 803 is subjected to the action of the water pressure, and can overcome the elastic force of the third spring 802 to slide downward, in the downward sliding process of the floating block 803, the floating block 803 can drive the adjusting rod 804 to slide downward, then the moving contact 805 at the lower end of the adjusting block 804 can move downward, when the water pressure of the downward moving position of the device is 20kPa, at this time, the moving contact 805 is in contact with the first fixed contact 806 (counting the first fixed contacts 806 from the top), at this time, one electromagnetic valve 6 corresponding to the fixed contact 806 is started, after the output shaft of the electromagnetic valve 6 pushes against the sliding rod 702 to slide, the clamping block 704 is separated from the clamping connection with the clamping rod 701, at this time, the corresponding sampling container 4 is unfolded and samples 20kPa water layer;

the 20kPa water layer sampling process is as follows: the first spring 406 bounces the movable cover body 403 upwards to enable the telescopic cavity 401 to expand after being supported by the movable cover body 403 and the fixed cover body 402, at the moment, water in a 20kPa water layer flows into the telescopic cavity 401 from the water inlet 404, when the movable cover body 403 is lifted to the highest position, the rotating block 503 is inserted into the water inlet 404, the water inlet 404 is sealed by the rubber gasket, and the torsion column 504 and the notch 4041 are in a clamping state at the moment, so that the water inlet 404 can be stably sealed, and the sampling operation of the water in the 20kPa water layer is realized;

when the pull rope 2 is continuously released, the device will continue to move downwards, the floating block 803 continues to overcome the third spring 802 to slide downwards after being subjected to higher water pressure, at the moment, the movable contact 805 will move downwards after being separated from the first fixed contact 806 and gradually approach the second fixed contact 806, the water pressure of groundwater is increased to 30kPa, the movable contact 805 is contacted with the second fixed contact 806, at the moment, the electromagnetic valve 6 corresponding to the second fixed contact 806 is started to drive the corresponding sampling container 4 to work, and sampling operation of water in a 30kPa water layer is realized, the operation process of collecting a 30kPa water layer water sample is the same as the operation process of collecting a 20kPa water layer water sample, on the basis of collecting a 30kPa water layer water sample, collection of a 40kPa water layer water sample is continuously carried out, and the operation process of collecting a 40kPa water layer water sample is the same as the operation process of collecting a 30kPa water layer water sample;

after the water layer water samples of 20kPa, 30kPa and 40kPa are finished successively, the pull rope 2 is pulled upwards to realize the taking out of the device from the underground water, and at the moment, the water layer water samples of 20kPa, 30kPa and 40kPa are stored in different sampling containers 4 respectively for detection.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a many sample samplers for groundwater is examined appearance, includes and suspends in midair in inside support frame (1) of groundwater with stay cord (2), support frame (1) include connecting rod (101), go up fagging (102) and fagging (103) down, the both ends of connecting rod (101) are fixed connection respectively and are put at the central point of last fagging (102) and fagging (103) down, its characterized in that: lower fagging (103) go up a plurality of fixing bases (3) of fixedly connected with, all be equipped with telescopic sample container (4) on a plurality of fixing bases (3), sample container (4) are including flexible cavity (401), fixed lid (402) and activity lid (403), be equipped with water inlet (404) on the activity lid (403), the top of activity lid (403) just is located and is equipped with sealing member (5) that are used for sealed water inlet (404) on the downside of last fagging (102), be equipped with a plurality of solenoid valves (6) down on the downside of fagging (103), solenoid valve (6) are fixed under the compression state through joint spare (7) joint activity lid (403) realization flexible cavity (401), be equipped with water pressure drive arrangement (8) that are used for receiving water pressure control drive solenoid valve (6) work on connecting rod (101).

2. A multiple sample sampler for use in groundwater sampling as claimed in claim 1, wherein: sealing member (5) are including base (501), the lower extreme of base (501) is rotated through torsional spring (502) and is connected with turning block (503), be stained with on the downside of turning block (503) and be used for sealed pad, be equipped with on the lateral wall of turning block (503) and turn round post (504), be equipped with notch (4041) that are used for the joint to turn round post (504) on the inside wall of water inlet (404).

3. A multiple sample sampler for use in groundwater sampling as claimed in claim 1, wherein: the clamping piece (7) comprises a clamping rod (701), a sliding rod (702), a second spring (703) and a clamping block (704), the clamping rod (701) is fixed on two sides of the movable cover body (403), the sliding rod (702) is fixed on an output shaft of the electromagnetic valve (6), and the clamping block (704) is arranged at the end portion of the clamping rod (701) through the second spring (703) and used for clamping the clamping rod (701).

4. A multiple sample sampler for use in groundwater sampling as claimed in claim 1, wherein: the hydraulic driving device (8) comprises a sleeve (801), a third spring (802), a floating block (803), an adjusting rod (804), a moving contact (805) and a plurality of fixed contacts (806), wherein the floating block (803) is connected inside the sleeve (801) in a sliding mode through the third spring (802), the floating block (803) drives the moving contact (805) located on the adjusting rod (804) to move through hydraulic pressure, and the moving contact (805) is enabled to be respectively contacted with the fixed contacts (806) under different hydraulic pressures to drive the corresponding electromagnetic valves (6) to work.

5. A multiple sample sampler for use in groundwater sampling as claimed in claim 1, wherein: the waterproof cover (9) is fixedly arranged below the lower supporting plate (103) and used for preventing water, and a power supply device (10) used for supplying power to the electromagnetic valve (6) is arranged inside the waterproof cover (9).