CN215640387U

CN215640387U - Deep sampling device for water quality detection of hydraulic engineering

Info

Publication number: CN215640387U
Application number: CN202122267412.XU
Authority: CN
Inventors: 汤树海; 杨浩; 赖茂卫; 羊兆忠; 朱耀军; 薛蕾; 徐霞
Original assignee: Lianshui Research Institute For Hydro Sciences
Current assignee: Lianshui Research Institute For Hydro Sciences
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-01-25
Anticipated expiration: 2031-09-18

Abstract

The utility model discloses a deep sampling device for water quality detection of hydraulic engineering, which comprises a transparent sampling tube, wherein a partition plate is fixedly sleeved in the transparent sampling tube, the top of the transparent sampling tube is fixedly connected with an installation seat, the bottom of the transparent sampling tube is fixedly connected with a balancing weight, a water level sensor is embedded in the bottom of the balancing weight, the right side of the transparent sampling tube is fixedly connected with an installation plate, the right side of the installation plate is fixedly connected with a filter screen, the inner wall of the right side of the transparent sampling tube is provided with two first water inlet holes, the partition plate is positioned between the two first water inlet holes, and the right side of the installation plate is provided with two second water inlet holes. The utility model is convenient for taking water samples with two different depths at one time, the water samples with different levels are not interfered with each other, the separate sampling operation is avoided, and the mode of plugging the water inlet hole after sampling can avoid the phenomenon that the upper water sample is mixed in the lifting process, thereby improving the sampling efficiency and accuracy and facilitating the operation of personnel.

Description

Deep sampling device for water quality detection of hydraulic engineering

Technical Field

The utility model relates to the technical field of deep sampling equipment, in particular to a deep sampling device for water quality detection of hydraulic engineering.

Background

The water conservancy project is used for controlling and allocating surface water and underground water in the nature, and achieves the purpose of removing harm and benefiting, so as to construct the project, also called water project, the water conservancy project is constructed, so as to control water flow, prevent flood disasters, and regulate and distribute water quantity, so as to meet the requirements of people's life and production on water resources, before crop irrigation is carried out, the water quality of the underground water needs to be detected, so that crops which are poor in water quality are prevented from being damaged, when the water quality is detected, a sampling device needs to be used for sampling water, most of the existing sampling devices manually move a sampling cylinder down into the underground water, the underground water enters the sampling cylinder under the self-pressure of the water, and then the sampling cylinder is taken out through a hoist or other lifting equipment;

the existing sampling mode can not meet the requirement of sampling deep water, and in the process of upward movement of the sampling cylinder, the phenomenon that the groundwater at the upper part is mixed into the sampling cylinder is easy to occur, so that the obtained water samples are the groundwater at the upper part or the mixed water samples from top to bottom, further influencing the detection of water samples, being inconvenient for sampling water at two depths at a time, requiring personnel to sample water at different depths in order to compare the water quality, the existing mode of sampling through a sampling cylinder can only sample water at the same depth at a time, when water with different depths needs to be sampled, personnel needs to operate the sampling cylinder again to move down to perform sampling operation, the operation is complicated, the use requirement cannot be met, the conditions are synthesized and improved, therefore, we provide a deep sampling device for water quality detection in hydraulic engineering to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a deep sampling device for water quality detection of hydraulic engineering.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a deep sampling device for water quality detection of hydraulic engineering comprises a transparent sampling tube, wherein a partition plate is fixedly sleeved in the transparent sampling tube, the top of the transparent sampling tube is fixedly connected with a mounting seat, the bottom of the transparent sampling tube is fixedly connected with a balancing weight, a water level sensor is embedded in the bottom of the balancing weight, the right side of the transparent sampling tube is fixedly connected with a mounting plate, the right side of the mounting plate is fixedly connected with a filter screen, two first water inlet holes are formed in the inner wall of the right side of the transparent sampling tube, the partition plate is positioned between the two first water inlet holes, two second water inlet holes are formed in the right side of the mounting plate and communicated with the corresponding first water inlet holes, an inclined structure is arranged on one side of the inner wall of the bottom of each second water inlet hole, the filter screen is matched with the two second water inlet holes, a first rectangular groove is formed in the bottom of the mounting plate, and the first rectangular groove is communicated with the two second water inlet holes in a crossed manner, a plugging plate is hermetically and slidably sleeved in the first rectangular groove and matched with the two second water inlet holes, a communication hole is formed in the right side of the plugging plate and matched with the second water inlet hole positioned above the communication hole, a second rectangular groove is formed in the top of the mounting plate, the bottom of the second rectangular groove is communicated with the top of the first rectangular groove, a rectangular hole communicated with the second rectangular groove is formed in the right side of the top of the mounting seat, the top of the plugging plate penetrates through the second rectangular groove and extends into the rectangular hole, a thread driving guide mechanism is fixedly connected between the inner walls of the two sides of the rectangular hole, the bottom of the thread driving guide mechanism extends into the second rectangular groove, the plugging plate is sleeved on the thread driving guide mechanism, the top of the plugging plate is fixedly connected with the thread driving guide mechanism, a protection box is fixedly connected to the right side of the top of the mounting seat, and a driving motor is connected to the inner wall of the right side of the protection box, the utility model discloses a thread drive guiding mechanism, including protection box, drive motor's output shaft bottom and thread drive guiding mechanism's top fixed connection, fixed mounting has the battery on the top inner wall of protection box, the right side of battery is fixed and electric connection has wireless remote control switch, wireless remote control switch and drive motor electric connection, battery and drive motor electric connection, all be equipped with closing switch in rectangular hole and the second rectangular channel, two closing switches all with drive motor electric connection, two equal fixed mounting of closing switch is on thread drive guiding mechanism.

Preferably, the thread driving guide mechanism comprises an installation block fixedly connected between the inner walls of two sides of the rectangular hole, the closing switches located above the two closing switches are embedded and fixed on the right side of the bottom of the installation block, a limiting block is fixedly installed on the inner wall of the right side of the second rectangular groove, the closing switches located below the closing switches are embedded and fixed at the top of the limiting block, the bottom of the installation block is rotatably installed with a screw, the bottom of the screw extends into the second rectangular groove, a blocking plate is sleeved on the screw, a movable block is fixedly connected to the top of the blocking plate and located in the rectangular hole, the movable block is located between the two closing switches and matched with the two closing switches, the movable block is sleeved on the screw in a threaded manner, a positioning rod is fixedly connected between the bottom of the installation block and the inner wall of the bottom of the second rectangular groove, and the movable block is slidably sleeved on the positioning rod.

Preferably, the top of the mounting seat is fixedly connected with a pull ring, and a pull rope is fixedly connected to the pull ring in a fastening manner.

Preferably, the outside bonding cladding of shutoff board has the rubber seal, the outside and the inner wall movable contact of first rectangular channel of rubber seal.

Preferably, the top of the moving block is provided with a threaded hole and a rectangular through hole, the threaded hole is in threaded connection with the screw rod, and the inner wall of the rectangular through hole is in sliding connection with the outer side of the positioning rod.

Preferably, the top of the plugging plate is provided with a first groove, and the screw rod is positioned in the first groove and is not contacted with the inner wall of the first groove.

Preferably, a circular hole is formed in the top of the mounting block, a bearing is fixedly sleeved in the circular hole, and the inner side of an inner ring of the bearing is fixedly connected with the outer side of the screw rod.

Preferably, the mounting groove has been seted up to the bottom of balancing weight, the inner wall of mounting groove and level sensor's outside fixed connection, the bottom fixedly connected with shielding plate of balancing weight, level sensor's detection end extends to the below of shielding plate.

Preferably, the wireless remote control switch is provided with an external remote controller in a matching manner, a signal receiver is arranged in the external remote controller, and the signal receiver is electrically connected with the wireless remote control switch.

Compared with the prior art, the utility model has the beneficial effects that:

through a transparent sampling tube, a clapboard, a mounting seat, a balancing weight, a water level sensor, a mounting plate, a first water inlet hole, a second water inlet hole, a filter screen, a first rectangular groove, a plugging plate, a intercommunicating pore, a second rectangular groove, a rectangular hole, a movable block, a mounting block, a positioning rod, a screw rod, a protection box, a driving motor, a storage battery, a wireless remote control switch and a stop block, one end of an electric hoist is connected with a pull rope, the pull rope is released by the electric hoist to drive the transparent sampling tube to move downwards into groundwater, the transparent sampling tube drives the water level sensor to move downwards through the balancing weight, when the water level sensor detects that the water level sensor reaches a preset depth, the water level sensor transmits a signal to a signal receiver, after a person receives the signal, the driving motor is controlled to start forwards through an external remote controller, the driving motor drives the screw rod to rotate, and the screw rod drives the movable block to move downwards, when the blocking plate and the communicating hole on the blocking plate are driven by the moving block to move downwards to be aligned with the second water inlet hole above, the moving block moves downwards to be contacted with the closing switch below, the closing switch controls the driving motor to be closed, at the moment, underground water passes through the filter screen under the self pressure and sequentially enters the upper part of the partition plate in the transparent sampling pipe through the second water inlet hole above and the first water inlet hole above, after standing for ten seconds, the driving motor is controlled to be started reversely, so that the blocking plate drives the communicating hole to move upwards and gradually stagger with the second water inlet hole above, and the second water inlet hole above is blocked;

when water at the next depth needs to be sampled, the transparent sampling tube is continuously moved downwards to drive the water level sensor to move downwards to the set depth, the water level sensor transmits a signal to the signal receiver, the driving motor can be started reversely again, so that the moving block drives the plugging plate to continuously move upwards to remove the plugging of the second water inlet hole below, when the moving block moves upwards to be in contact with the closing switch above, the driving motor is controlled to be closed, at the moment, underground water passes through the filter screen and sequentially enters the position below the partition plate in the transparent sampling tube through the second water inlet hole below and the first water inlet hole below, the driving motor is started forwards again after standing for ten seconds, so that the plugging plate downwards plugs the second water inlet hole below, at the moment, the transparent sampling tube can be moved out from the underground water through the electric hoist, after the transparent sampling tube is moved out, the driving motor can be started forwards firstly to remove the plugging of the second water inlet hole above, at this moment, water above the partition plate is discharged through the first water inlet hole above and the second water inlet hole above in sequence, the driving motor is started reversely, the blockage of the second water inlet hole below is removed, the water below the partition plate can be discharged through the first water inlet hole below and the second water inlet hole below, and sampling is completed.

The utility model is convenient for taking water samples with two different depths at one time, the water samples with different levels are not interfered with each other, the separate sampling operation is avoided, and the mode of plugging the water inlet hole after sampling can avoid the phenomenon that the upper water sample is mixed in the lifting process, thereby improving the sampling efficiency and accuracy and facilitating the operation of personnel.

Drawings

Fig. 1 is a schematic structural view of a deep sampling device for water quality detection in hydraulic engineering according to the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure: 100 transparent sampling tubes, 1 partition plate, 2 mounting seats, 3 balancing weights, 4 water level sensors, 5 mounting plates, 6 first water inlet holes, 7 second water inlet holes, 8 filter screens, 9 first rectangular grooves, 10 plugging plates, 11 communicating holes, 12 second rectangular grooves, 13 rectangular holes, 14 moving blocks, 15 mounting blocks, 16 positioning rods, 17 screw rods, 18 protection boxes, 19 driving motors, 20 storage batteries, 21 wireless remote control switches, 22 closing switches and 23 limiting blocks.

Detailed Description

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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a deep sampling device for water quality testing of hydraulic engineering, comprising a transparent sampling tube 100, a partition plate 1 is fixedly sleeved in the transparent sampling tube 100, a mounting base 2 is fixedly connected to the top of the transparent sampling tube 100, a balancing weight 3 is fixedly connected to the bottom of the transparent sampling tube 100, a water level sensor 4 is embedded in the bottom of the balancing weight 3, a mounting plate 5 is fixedly connected to the right side of the transparent sampling tube 100, a filter screen 8 is fixedly connected to the right side of the mounting plate 5, two first water inlet holes 6 are formed in the inner wall of the right side of the transparent sampling tube 100, the partition plate 1 is positioned between the two first water inlet holes 6, two second water inlet holes 7 are formed in the right side of the mounting plate 5, the second water inlet holes 7 are communicated with the corresponding first water inlet holes 6, one side of the inner wall of the bottom of the second water inlet holes 7 is set to be an inclined structure, the filter screen 8 is matched with the two second water inlet holes 7, the bottom of the mounting plate 5 is provided with a first rectangular groove 9, the first rectangular groove 9 is communicated with two second water inlet holes 7 in a crossed manner, a plugging plate 10 is sleeved in the first rectangular groove 9 in a sealing and sliding manner, the plugging plate 10 is matched with the two second water inlet holes 7, the right side of the plugging plate 10 is provided with a communication hole 11, the communication hole 11 is matched with the second water inlet hole 7 positioned above, the top of the mounting plate 5 is provided with a second rectangular groove 12, the bottom of the second rectangular groove 12 is communicated with the top of the first rectangular groove 9, the right side of the top of the mounting seat 2 is provided with a rectangular hole 13 communicated with the second rectangular groove 12, the top of the plugging plate 10 penetrates through the second rectangular groove 12 and extends into the rectangular hole 13, a thread driving guide mechanism is fixedly connected between the inner walls at two sides of the rectangular hole 13, the bottom of the thread driving guide mechanism extends into the second rectangular groove 12, the plugging plate 10 is sleeved on the thread driving guide mechanism, the top of the plugging plate 10 is fixedly connected with the thread driving guide mechanism, the right side of the top of the mounting seat 2 is fixedly connected with a protection box 18, the inner wall of the right side of the protection box 18 is connected with a driving motor 19, the bottom end of an output shaft of the driving motor 19 is fixedly connected with the top end of the thread driving guide mechanism, the inner wall of the top of the protection box 18 is fixedly provided with a storage battery 20, the right side of the storage battery 20 is fixedly and electrically connected with a wireless remote control switch 21, the wireless remote control switch 21 is electrically connected with the driving motor 19, the storage battery 20 is electrically connected with the driving motor 19, the rectangular hole 13 and the second rectangular groove 12 are both provided with closing switches 22, the two closing switches 22 are both electrically connected with the driving motor 19, and the two closing switches 22 are both fixedly arranged on the thread driving guide mechanism;

the thread driving guide mechanism comprises an installation block 15 fixedly connected between the inner walls on the two sides of the rectangular hole 13, the closing switch 22 positioned above the two closing switches 22 is embedded and fixed on the right side of the bottom of the installation block 15, a limit block 23 is fixedly installed on the inner wall on the right side of the second rectangular groove 12, the closing switch 22 positioned below the closing switch 22 is embedded and fixed on the top of the limit block 23, a screw 17 is rotatably installed at the bottom of the installation block 15, the bottom end of the screw 17 extends into the second rectangular groove 12, a blocking plate 10 is sleeved on the screw 17, a moving block 14 is fixedly connected to the top of the blocking plate 10, the moving block 14 is positioned in the rectangular hole 13, the moving block 14 is positioned between the two closing switches 22 and matched with the two closing switches 22, the moving block 14 is sleeved on the screw 17 in a threaded manner, a positioning rod 16 is fixedly connected between the bottom of the installation block 15 and the inner wall at the bottom of the second rectangular groove 12, and the moving block 14 is sleeved on the positioning rod 16 in a sliding manner, the utility model is convenient for taking water samples with two different depths at one time, the water samples with different levels are not interfered with each other, the separate sampling operation is avoided, and the mode of plugging the water inlet hole after sampling can avoid the phenomenon that the upper water sample is mixed in the lifting process, thereby improving the sampling efficiency and accuracy and facilitating the operation of personnel.

In the utility model, the top of the mounting seat 2 is fixedly connected with a pull ring, a pull rope is fixedly connected to the pull ring in a fastening manner, the outer side of the plugging plate 10 is bonded and coated with a sealing rubber sheet, the outer side of the sealing rubber sheet is movably contacted with the inner wall of a first rectangular groove 9, the top of the movable block 14 is provided with a threaded hole and a rectangular perforation, the threaded hole is in threaded connection with a screw rod 17, the inner wall of the rectangular perforation is in sliding connection with the outer side of a positioning rod 16, the top of the plugging plate 10 is provided with a first groove, the screw rod 17 is positioned in the first groove and is not contacted with the inner wall of the first groove, the top of the mounting block 15 is provided with a circular hole, the circular hole is fixedly sleeved with a bearing, the inner side of an inner ring of the bearing is fixedly connected with the outer side of the screw rod 17, the bottom of the counterweight block 3 is provided with a mounting groove, the inner wall of the mounting groove is fixedly connected with the outer side of the water level sensor 4, the bottom of the counterweight block 3 is fixedly connected with a shielding plate, and the detection end of the water level sensor 4 extends to the lower part of the shielding plate, the wireless remote control switch 21 is provided with the external remote controller in a matching mode, the signal receiver is arranged in the external remote controller and electrically connected with the wireless remote control switch 21, so that water samples at two different depths can be conveniently collected at one time, the water samples at different levels are not interfered with each other, the additional independent sampling operation is avoided, the water inlet hole is blocked after sampling, the phenomenon that the upper water sample is mixed in the lifting process can be avoided, the sampling efficiency and accuracy are improved, and the operation of personnel is facilitated.

The working principle is as follows: when the sampling device is used, one end of an electric hoist is connected with a pull rope, the pull rope is released by the electric hoist to drive the transparent sampling tube 100 to move downwards into underground water, the transparent sampling tube 100 drives the balancing weight 3 to move downwards, the balancing weight 3 drives the water level sensor 4 to move downwards, the water level sensor 4 detects the downwards moved position, when the water level sensor 4 detects that the water level sensor reaches a preset depth, the water level sensor 4 transmits a signal to a signal receiver, after receiving the signal, a person controls the wireless remote control switch 21 to control the driving motor 19 to start in the forward direction through an external remote controller, the output shaft of the driving motor 19 drives the screw rod 17 to rotate, under the action of a threaded hole formed in the moving block 14, the screw rod 17 drives the moving block 14 to move downwards, the moving block 14 slides downwards on the positioning rod 16, the moving block 14 drives the blocking plate 10 to move downwards, and the blocking plate 10 drives the communication hole 11 to move downwards to a second water inlet hole 7 aligned with the upper part, at this time, the moving block 14 moves downwards to contact with the closing switch 22 at the lower part, the closing switch 22 is triggered to control the driving motor 19 to be closed, at this time, the underground water passes through the filter screen 8 and enters the transparent sampling tube 100 through the second water inlet 7 at the upper part and the first water inlet 6 at the upper part in sequence under the self pressure, the entering water is positioned above the clapboard 1, after standing for ten seconds, the wireless remote control switch is controlled by an external remote controller to control the driving motor 19 to start reversely, the movement process of the driving motor 19 is opposite to the movement process of the driving motor 19 which is started forwardly, so that the plugging plate 10 drives the communication hole 11 to move upwards and gradually stagger with the second water inlet hole 7 above, the blocking plate 10 can block the second water inlet 7 above, and the second water inlet 7 in the blocking state can effectively prevent water in the transparent sampling tube 100 from flowing out and prevent external water from entering;

when water at the next depth needs to be sampled, the transparent sampling tube 100 is continuously moved downwards, meanwhile, the water level sensor 4 is driven to continuously move downwards, when the water level sensor 4 moves downwards to the set depth, the water level sensor 4 transmits a signal to the signal receiver, at the moment, a person can reversely start the driving motor 19 again, so that the moving block 14 drives the blocking plate 10 to continuously move upwards, when the moving block 14 moves upwards to be contacted with the closing switch 22 above, the closing switch 22 is triggered and controls the driving motor 19 to be closed, at the moment, the blocking plate 10 moves upwards to gradually remove the blocking of the second water inlet 7 below, at the moment, underground water passes through the filter screen 8 and sequentially enters the transparent sampling tube 100 through the second water inlet 7 below and the first water inlet 6 below, at the moment, the entering water level is below the partition plate 1, standing for ten seconds, and the driving motor 19 is started again in the forward direction, the blocking plate 10 is changed into downward return movement and reset, the blocking plate 10 blocks the second water inlet hole 7 below downwards, at the moment, the transparent sampling tube 100 can be moved out of underground water through the electric hoist, and because the second water inlet hole 7 is in a blocking state at the moment, in the process of moving the transparent sampling tube 100 upwards, the phenomenon that upper water enters mixing can be avoided, the purpose of depth-fixed sampling is achieved, and the arrangement of the partition plate 1 can separate and sample water at two depths at the same time, the transparent sampling tube 100 does not need to be independently placed again by a person, so that the operation of the person is facilitated;

after the transparent sampling tube 100 is moved out, the driving motor 19 can be started in a forward direction at first, so that the plugging plate 10 drives the communication hole 11 to remove the plugging of the second water inlet 7 above, at the moment, the water above the partition plate 1 is discharged through the first water inlet 6 above and the second water inlet 7 above in sequence, the driving motor 19 is started in a reverse direction immediately, so that the plugging plate 10 moves upwards to remove the plugging of the second water inlet 7 below, at the moment, the water below the partition plate 1 can be discharged through the first water inlet 6 below and the second water inlet 7 below, and the sampling is completed.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A deep sampling device for water quality detection of hydraulic engineering comprises a transparent sampling tube (100), wherein a partition plate (1) is fixedly sleeved in the transparent sampling tube (100), and a mounting base (2) is fixedly connected to the top of the transparent sampling tube (100), and is characterized in that a balancing weight (3) is fixedly connected to the bottom of the transparent sampling tube (100), a water level sensor (4) is embedded in the bottom of the balancing weight (3), a mounting plate (5) is fixedly connected to the right side of the transparent sampling tube (100), a filter screen (8) is fixedly connected to the right side of the mounting plate (5), two first water inlet holes (6) are formed in the inner wall of the right side of the transparent sampling tube (100), the partition plate (1) is positioned between the two first water inlet holes (6), two second water inlet holes (7) are formed in the right side of the mounting plate (5), and the second water inlet holes (7) are communicated with the corresponding first water inlet holes (6), one side of the inner wall of the bottom of each second water inlet hole (7) is of an inclined structure, a filter screen (8) is matched with the two second water inlet holes (7), a first rectangular groove (9) is formed in the bottom of the mounting plate (5), the first rectangular groove (9) is communicated with the two second water inlet holes (7) in a crossed manner, a plugging plate (10) is sleeved in the first rectangular groove (9) in a sealing and sliding manner, the plugging plate (10) is matched with the two second water inlet holes (7), a communication hole (11) is formed in the right side of the plugging plate (10), the communication hole (11) is matched with the second water inlet hole (7) positioned above, a second rectangular groove (12) is formed in the top of the mounting plate (5), the bottom of the second rectangular groove (12) is communicated with the top of the first rectangular groove (9), a rectangular hole (13) communicated with the second rectangular groove (12) is formed in the right side of the top of the mounting seat (2), the top of the plugging plate (10) penetrates through the second rectangular groove (12) and extends into the rectangular hole (13), a thread driving guide mechanism is fixedly connected between the inner walls of two sides of the rectangular hole (13), the bottom of the thread driving guide mechanism extends into the second rectangular groove (12), the plugging plate (10) is sleeved on the thread driving guide mechanism, the top of the plugging plate (10) is fixedly connected with the thread driving guide mechanism, the right side of the top of the mounting seat (2) is fixedly connected with a protection box (18), the inner wall of the right side of the protection box (18) is connected with a driving motor (19), the bottom end of an output shaft of the driving motor (19) is fixedly connected with the top end of the thread driving guide mechanism, a storage battery (20) is fixedly installed on the inner wall of the top of the protection box (18), the right side of the storage battery (20) is fixedly and electrically connected with a wireless remote control switch (21), and the wireless remote control switch (21) is electrically connected with the driving motor (19), the storage battery (20) is electrically connected with the driving motor (19), the rectangular holes (13) and the second rectangular grooves (12) are internally provided with closing switches (22), the two closing switches (22) are electrically connected with the driving motor (19), and the two closing switches (22) are fixedly installed on the thread driving guide mechanism.

2. The deep sampling device for water quality detection of the hydraulic engineering according to claim 1, wherein the thread driving guide mechanism comprises a mounting block (15) fixedly connected between the inner walls of two sides of the rectangular hole (13), the upper closing switch (22) of the two closing switches (22) is embedded and fixed at the right side of the bottom of the mounting block (15), a limiting block (23) is fixedly installed on the inner wall of the right side of the second rectangular groove (12), the lower closing switch (22) is embedded and fixed at the top of the limiting block (23), a screw rod (17) is rotatably installed at the bottom of the mounting block (15), the bottom end of the screw rod (17) extends into the second rectangular groove (12), the blocking plate (10) is sleeved on the screw rod (17), a moving block (14) is fixedly connected to the top of the blocking plate (10), and the moving block (14) is located in the rectangular hole (13), the moving block (14) is located between the two closing switches (22) and matched with the two closing switches (22), the moving block (14) is sleeved on the screw rod (17) in a threaded mode, the positioning rod (16) is fixedly connected between the bottom of the mounting block (15) and the inner wall of the bottom of the second rectangular groove (12), and the moving block (14) is sleeved on the positioning rod (16) in a sliding mode.

3. The deep sampling device for water quality detection of the hydraulic engineering as recited in claim 1, wherein a pull ring is fixedly connected to the top of the mounting seat (2), and a pull rope is fastened and fixed to the pull ring.

4. The deep sampling device for water quality detection of hydraulic engineering according to claim 1, wherein the outer side of the plugging plate (10) is bonded and coated with a sealing rubber sheet, and the outer side of the sealing rubber sheet is in movable contact with the inner wall of the first rectangular groove (9).

5. The deep sampling device for water quality detection of the hydraulic engineering as recited in claim 2, wherein the top of the moving block (14) is provided with a threaded hole and a rectangular through hole, the threaded hole is in threaded connection with the screw rod (17), and the inner wall of the rectangular through hole is in sliding connection with the outer side of the positioning rod (16).

6. The deep sampling device for water quality detection of the hydraulic engineering according to claim 2, wherein a first groove is formed at the top of the blocking plate (10), and the screw (17) is positioned in the first groove and is not in contact with the inner wall of the first groove.

7. The deep sampling device for water quality detection of the hydraulic engineering as recited in claim 2, wherein a circular hole is formed at the top of the mounting block (15), a bearing is fixedly sleeved in the circular hole, and the inner side of an inner ring of the bearing is fixedly connected with the outer side of the screw (17).

8. The deep sampling device for water quality detection of the hydraulic engineering as recited in claim 1, wherein a mounting groove is formed in the bottom of the counterweight block (3), the inner wall of the mounting groove is fixedly connected with the outer side of the water level sensor (4), a shielding plate is fixedly connected to the bottom of the counterweight block (3), and the detection end of the water level sensor (4) extends to the lower side of the shielding plate.

9. The deep sampling device for water quality detection of hydraulic engineering according to claim 1, wherein the wireless remote control switch (21) is provided with an external remote controller in a matching manner, a signal receiver is arranged in the external remote controller, and the signal receiver is electrically connected with the wireless remote control switch (21).