CN116008014A

CN116008014A - Water quality monitoring is with different water level sampling device

Info

Publication number: CN116008014A
Application number: CN202111227082.XA
Authority: CN
Inventors: 董莹
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2023-04-25

Abstract

The utility model provides a water quality monitoring is with different water level sampling device, belongs to water quality monitoring technical field, needs to take a sample many times when detecting the water source of same water source different water levels, and the operation is comparatively loaded down with trivial details to need utilize a plurality of telescopic cylinders and piston when there are a plurality of sample chambers on the sampling device, caused the problem of wasting of resources; according to the invention, the embedding holes are uniformly distributed on the side surface of the belt, the embedding sleeves are respectively arranged in the embedding holes, the driving assembly comprises a double-headed motor fixedly connected to the top of the fixed plate, the mounting assembly is provided with a plurality of groups, the front end of the mounting plate is fixedly connected with the limiting plate, and the limiting plate is provided with a limiting groove penetrating left and right.

Description

Water quality monitoring is with different water level sampling device

Technical Field

The invention relates to the technical field of water quality monitoring, in particular to a different water level sampling device for water quality monitoring.

Background

The water quality monitoring is a process for monitoring and measuring the types of pollutants in a water body, the concentration and the change trend of various pollutants and evaluating the water quality condition. The monitoring range is very wide, including uncontaminated and contaminated natural waters (rivers, lakes, seas and groundwater) and various industrial drains, etc. Major monitoring projects can be divided into two main categories: one is a comprehensive index reflecting water quality conditions, such as temperature, chromaticity, turbidity, pH value, conductivity, suspended matters, dissolved oxygen, chemical oxygen demand, biochemical oxygen demand and the like; the other is some toxic substances such as phenol, cyanogen, arsenic, lead, chromium, cadmium, mercury, organic pesticides, etc. In order to objectively evaluate the water quality of rivers and oceans, it is sometimes necessary to measure the flow rate and the flow quantity in addition to the above-mentioned monitoring items.

The sampling device is needed to sample the detection area before water quality monitoring, the existing sampling device can only sample the water source of the same depth once when sampling, however, at some deeper water source positions, certain difference exists between the surface temperature and the internal temperature, the component content in the surface temperature and the internal temperature can also be different, the water source of the same water source with different water levels needs to be detected, the operation is complex, the existing sampling device utilizes the expansion and contraction of the piston to change the pressure inside the sampling chamber and then extract the water source when sampling is carried out, and a plurality of expansion cylinders and pistons need to be utilized when a plurality of sampling chambers exist on the sampling device, so that resource waste is caused.

To solve the above problems. Therefore, a device for sampling different water levels for water quality monitoring is provided.

Disclosure of Invention

The invention aims to provide a sampling device with different water levels for water quality monitoring, which solves the problems that in the background technology, at some deeper water sources, the surface temperature and the internal temperature have certain difference, the content of components in the water sources can also have difference, when the water sources with different water levels of the same water source are required to be detected, the sampling device needs to be sampled for multiple times, the operation is complicated, the pressure in a sampling chamber is changed by utilizing the expansion and contraction of a piston when the sampling device is used for sampling, the water sources are extracted, and when a plurality of sampling chambers exist on the sampling device, a plurality of expansion cylinders and pistons are required to be utilized, so that the resource waste is caused.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a water quality monitoring is with different water level sampling device, including moving mechanism and the stop gear who sets up on moving mechanism, still including setting up the sampling mechanism in moving mechanism one side, moving mechanism includes drive assembly, guide rail assembly and installation component, guide rail assembly includes fixed plate and suit belt on the outer wall of fixed plate one side, the side evenly distributed of belt has the gomphosis hole, all be provided with the gomphosis cover in the gomphosis hole, drive assembly includes the double-end motor of fixed plate top of fixed connection, the installation component is provided with the multiunit, the installation component includes the mounting panel of activity setting on the fixed plate opposite side, the equal fixedly connected with limiting plate of mounting panel front end, be provided with the spacing groove that runs through about on the limiting plate;

the limiting mechanism comprises a connecting component fixedly connected to one side of the limiting plate, and further comprises a limiting component arranged on the connecting component, wherein the connecting component comprises a first shell, the connecting component further comprises a push-pull electromagnet arranged in the first shell, the output end of the push-pull electromagnet is fixedly connected with a connecting piece, the top of the connecting piece is fixedly connected with a sliding rod, one end of the sliding rod extends into the limiting groove, and the diameter of the sliding rod is smaller than the diameter of the inner wall of the embedded sleeve;

the sampling mechanism comprises a rotating assembly arranged on the other side of the fixed plate, a meshing assembly is arranged between the rotating assembly and the driving assembly, and the sampling mechanism further comprises a sampling assembly movably arranged on the rotating assembly.

Further, the U-shaped rods are fixedly connected to the upper portion and the lower portion of one side of the fixing plate, the driving roller is rotatably connected to the top portion of one side of the fixing plate through the U-shaped rods, the driving roller is rotatably connected to the bottom portion of one side of the fixing plate through the U-shaped rods, and the belt is rotatably connected to the outer walls of the driving roller and the driving roller.

Further, the output ends of the two sides of the double-headed motor are fixedly connected with limit rods, the limit rods on one side of the double-headed motor, which is close to the belt, are connected with first bevel gears in a sliding manner, one side of the first bevel gears, which is close to the double-headed motor, is connected with a first rotating ring in a rotating manner, and the driving roller is provided with meshing grooves corresponding to the first bevel gears.

Further, the driving assembly further comprises a fixed block fixedly connected to the top of the double-headed motor, a telescopic cylinder is fixedly connected to the inside of the fixed block, a sliding rod is fixedly connected to the upper portion of the output end of the telescopic cylinder, and the sliding rod penetrates through the fixed block and is fixedly connected with the first rotating ring.

Further, the installation component still includes the spout that sets up at the fixed plate opposite side, and the inside sliding connection of spout has the slider, and slider and mounting panel fixed connection.

Further, the spacing subassembly includes the second casing of fixed connection at first casing top, and the inside sliding connection of second casing has the stopper, and spacing subassembly still includes evenly distributed at the draw-in groove of fixed plate front end, and the cross section shape of stopper is trapezoidal, and the draw-in groove is corresponding with the shape of stopper, and the front end fixedly connected with of stopper runs through the connecting rod of second casing, and the cover is equipped with first spring on the connecting rod, and first spring is located between second shells inner wall and the stopper front end.

Further, the meshing assembly comprises a second rotating ring, the second rotating ring is fixedly connected to the lower portion of the other side of the double-headed motor through a first fixing rod, a rotating rod is rotatably connected to the second rotating ring, and the upper end and the lower end of the rotating rod are fixedly connected with a second bevel gear and a spur gear respectively.

Further, the meshing assembly further comprises a third bevel gear which is arranged on the limit rod on the other side of the double-headed motor in a sliding manner, the third bevel gear corresponds to the second bevel gear, one side, close to the double-headed motor, of the third bevel gear is rotationally connected with a third rotating ring, and a second fixing rod is fixedly connected between the third rotating ring and the output end of the telescopic cylinder.

Further, the rotating assembly comprises a sector gear which is connected to one side of the straight gear in a meshed mode, a rotating shaft is fixedly connected to one side of the top of the sector gear, a shaft sleeve is fixedly connected to the bottom of the double-headed motor at the position corresponding to the rotating shaft, the top of the rotating shaft is rotatably connected to the inside of the shaft sleeve, a third fixing rod is fixedly connected to the bottom of the sector gear, an L-shaped rod is fixedly connected to the bottom of the third fixing rod, a rotating seat is fixedly connected to the bottom of the other side of the fixing plate at the position corresponding to the L-shaped rod, and the other end of the L-shaped rod is rotatably connected to the inside of the rotating seat.

Further, the sampling assembly includes the gomphosis setting up the sampling chamber in the mounting panel, the upper and lower exhaust hole and the inlet opening that run through in the inside and outside are provided with respectively in the sampling chamber, the inside rotation of sampling chamber is connected with the rotation piece, and rotate about fixedly connected with and exhaust hole and the relative second closing plate of inlet opening and first closing plate of piece, and the top of rotation piece runs through the sampling chamber and upwards extend, the top of rotation piece is provided with the hole of running through about, the sampling assembly still includes sliding connection sliding ring on the third dead lever, one side fixedly connected with movable sleeve of sliding connection on the sliding ring, sliding connection has the movable rod on the movable sleeve, and the other end of movable rod runs through the hole on the rotation piece, fixedly connected with second spring on the inner wall of movable sleeve, and the other end and the movable rod fixed connection of second spring.

Compared with the prior art, the invention has the beneficial effects that:

1. the utility model provides a water quality monitoring is with different water level sampling device, make the mounting panel be located the below of fixed plate, the second swivel becket of installation in the inside gomphosis of mounting panel, and press movable rod makes the movable rod retract in the movable sleeve, then make the movable rod opposite side pass the hole at rotor top, place the whole device in the aquatic of waiting to take a sample afterwards, then make telescopic cylinder be in the state of retracting, start the double-end motor afterwards, drive the drive roller through first bevel gear meshing in the meshing groove of drive roller one side and rotate when the double-end motor rotates, drive the belt and rotate when the drive roller rotates, the belt drives the driving roller through the inside slide bar of first casing and upwards moves, the sampling chamber that drives through the mounting panel upwards moves when the limiting plate removes, conveniently remove the sampling chamber to different water levels.

2. When the heights of the sampling chambers of a plurality of groups need to be adjusted one by one, the push-pull electromagnet is started, the push-pull electromagnet is electrified to retract to drive the slide rod to be inserted into the embedded sleeve, the belt can drive the driving roller to move upwards through the slide rod when rotating, when one group of sampling chambers move to a pending position, the push-pull electromagnet is powered off, the slide rod stretches out and leaves the inside of the embedded sleeve, and at the moment, the limiting block is meshed on the clamping groove to prevent the sampling chambers from moving downwards due to gravity, so that the limiting of the sampling chambers of the plurality of groups is realized.

3. When the sampling chamber moves upwards, the rotating piece drives the slip ring to move on the third fixed rod through the movable rod and the movable sleeve, when the water level of the sampling chamber is determined, the telescopic cylinder stretches out, the second fixed rod drives the third bevel gear to be meshed with the second bevel gear through the third rotating ring, at the moment, the first bevel gear is separated from the driving roller, the double-headed motor is started, the spur gear rotates and drives the sector gear and the third fixed rod to rotate around the rotating shaft, at the moment, the third fixed rod drives the rotating piece to rotate through the slip ring, the movable sleeve and the movable rod, the first fixed rod is used for water inflow, the exhaust hole is used for exhausting in the water inflow process of the sampling chamber, after water inflow is completed, the double-headed motor reversely rotates, and the first sealing plate and the second sealing plate are used for closing the water inflow hole and the exhaust hole, so that the sampling chamber of multiple groups can be sampled simultaneously, the sampling efficiency is high, and the equipment cost is saved.

Drawings

FIG. 1 is a schematic diagram of the overall three-dimensional structure of a device for monitoring seawater quality with different water levels;

FIG. 2 is a split view of the whole structure of the different water level sampling device for seawater quality monitoring;

FIG. 3 is an exploded view of the moving mechanism of the device for monitoring seawater quality;

FIG. 4 is an exploded view of the drive assembly of the different water level sampling device for seawater quality monitoring according to the present invention;

FIG. 5 is an exploded view of the limiting mechanism of the different water level sampling device for seawater quality monitoring;

FIG. 6 is an exploded view of the structure of the engagement assembly of the different water level sampling device for seawater quality monitoring according to the present invention;

FIG. 7 is an exploded view of the rotating assembly of the different water level sampling device for seawater quality monitoring according to the present invention;

FIG. 8 is an exploded view of the sampling assembly of the device for monitoring seawater quality.

In the figure: 1. a moving mechanism; 11. a drive assembly; 111. a double-ended motor; 1111. a limit rod; 112. a first bevel gear; 1121. a first rotating ring; 113. a fixed block; 1131. a telescopic cylinder; 1132. a slide bar; 12. a guide rail assembly; 121. a fixing plate; 122. a U-shaped rod; 123. a drive roll; 1231. a meshing groove; 124. a driving roller; 125. a belt; 1251. a fitting hole; 1252. a jogged sleeve; 13. a mounting assembly; 131. a mounting plate; 132. a chute; 133. a slide block; 134. a limiting plate; 135. a limit groove; 2. a limiting mechanism; 21. a connection assembly; 211. a first housing; 212. push-pull electromagnet; 2121. a connecting piece; 2122. a slide bar; 22. a limit component; 221. a second housing; 222. a limiting block; 2221. a connecting rod; 2222. a first spring; 223. a clamping groove; 3. a sampling mechanism; 31. an engagement assembly; 311. a second rotating ring; 3111. a first fixing rod; 312. a rotating lever; 313. a second bevel gear; 314. a third bevel gear; 3141. a third rotating ring; 3142. a second fixing rod; 315. spur gears; 32. a rotating assembly; 321. a sector gear; 322. a shaft sleeve; 323. a rotating shaft; 324. a third fixing rod; 325. an L-shaped rod; 326. a rotating seat; 33. a sampling assembly; 331. a sampling chamber; 3311. a water inlet hole; 3312. an exhaust hole; 332. a rotating member; 3321. a first sealing plate; 3322. a second sealing plate; 333. a slip ring; 334. a movable sleeve; 335. a movable rod; 336. and a second spring.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In order to solve the technical problem that multiple sampling is needed when detecting water sources with different water levels of the same water source, as shown in fig. 1-5, the following preferable technical scheme is provided:

the utility model provides a water quality monitoring is with different water level sampling device, including moving mechanism 1 and the stop gear 2 of setting on moving mechanism 1, still including setting up the sampling mechanism 3 in moving mechanism 1 one side, moving mechanism 1 includes actuating assembly 11, guide rail assembly 12 and installation component 13, guide rail assembly 12 includes fixed plate 121 and the belt 125 of suit on the outer wall of fixed plate 121 one side, the side evenly distributed of belt 125 has gomphosis hole 1251, all be provided with gomphosis cover 1252 in the gomphosis hole 1251, actuating assembly 11 includes the double-headed motor 111 of fixed plate 121 top, installation component 13 is provided with the multiunit, installation component 13 includes the mounting panel 131 of activity setting on the fixed plate 121 opposite side, the equal fixedly connected with limiting plate 134 of mounting panel 131 front end, be provided with the spacing groove 135 of running through about on the limiting plate 134, stop gear 2 includes coupling assembling 21 of fixed connection in limiting plate 134 one side, coupling assembling 22 on coupling assembling 21, coupling assembling 21 includes first casing 211, coupling assembling 21 still includes push-pull electromagnet 212 that sets up in first casing 211, push-pull electromagnet 212's output end 2121 fixedly connects 2121 to have, and the inside slide bar 2122 extends to the inside diameter of slide bar 2122, the inside diameter of extension slide bar 2122 is small, the diameter of slide bar 2122 is extended.

The U-shaped rods 122 are fixedly connected to the upper and lower sides of one side of the fixing plate 121, the driving roller 123 is rotatably connected to the top of one side of the fixing plate 121 through the U-shaped rods 122, the driving roller 124 is rotatably connected to the bottom of one side of the fixing plate 121 through the U-shaped rods 122, the belt 125 is rotatably connected to the outer walls of the driving roller 123 and the driving roller 124, the limit rods 1111 are fixedly connected to the output ends of the two sides of the double-headed motor 111, the first bevel gear 112 is slidably connected to the limit rod 1111 on one side of the double-headed motor 111, which is close to the belt 125, the first bevel gear 112 is rotatably connected to the first rotating ring 1121, the driving roller 123 is provided with the meshing groove 1231 corresponding to the first bevel gear 112, the driving assembly 11 further comprises the fixing block 113 fixedly connected to the top of the double-headed motor 111, the telescopic cylinder 1131 is fixedly connected to the inside of the fixing block 113, the output top fixedly connected with slide bar 1132 of telescopic cylinder 1131, and slide bar 1132 runs through fixed block 113 and with first rotating ring 1121 fixed connection, installation component 13 still includes the spout 132 that sets up at the fixed plate 121 opposite side, the inside sliding connection of spout 132 has slider 133, and slider 133 and mounting panel 131 fixed connection, spacing subassembly 22 includes the second casing 221 of fixed connection at first casing 211 top, the inside sliding connection of second casing 221 has stopper 222, spacing subassembly 22 still includes the draw-in groove 223 evenly distributed at the fixed plate 121 front end, the cross section shape of stopper 222 is trapezoidal, and the draw-in groove 223 corresponds with the shape of stopper 222, the front end fixedly connected with of stopper 222 runs through the connecting rod 2221 of second casing 221, the cover is equipped with first spring 2222 on the connecting rod 2221, and first spring 2222 is located between second casing 221 inner wall and the stopper 222 front end.

Specifically, the mounting plate 131 is located below the fixed plate 121, the second rotating ring 311 is embedded and mounted in the mounting plate 131, the movable rod 335 is pressed to retract the movable rod 335 into the movable sleeve 334, then the other side of the movable rod 335 passes through the hole at the top of the rotating member 332, the whole device is placed in water to be sampled, then the telescopic cylinder 1131 is in a retracted state, then the double-headed motor 111 is started, the double-headed motor 111 rotates, the first bevel gear 112 is meshed with the meshing groove 1231 at one side of the driving roller 123 to drive the driving roller 123 to rotate, the driving roller 123 rotates to drive the belt 125 to rotate, when the heights of the multiple groups of sampling chambers 331 need to be adjusted one by one, the push-pull electromagnet 212 is electrified to retract to drive the sliding rod 2122 to be inserted into the embedding sleeve 1252, the belt 125 can drive the driving roller 124 to move upwards through the sliding rod 2122 when rotating, when one group of sampling chambers 331 moves to a to-be-determined position, the push-pull electromagnet 212 can sequentially complete the movement of the multiple groups of sampling chambers 331, then the sliding rod 2122 extends out from the embedding sleeve 1252 to leave the inner part, and the clamping groove 222 can be prevented from being meshed with the limiting block 223 downwards.

In order to solve the technical problem that resource waste is caused by utilizing a plurality of telescopic cylinders and pistons when a plurality of sampling chambers exist on the sampling device, as shown in fig. 6-8, the following preferable technical scheme is provided:

the sampling mechanism 3 comprises a rotating component 32 arranged on the other side of the fixed plate 121, a meshing component 31 is arranged between the rotating component 32 and the driving component 11, the sampling mechanism 3 further comprises a sampling component 33 movably arranged on the rotating component 32, the meshing component 31 comprises a second rotating ring 311, the second rotating ring 311 is fixedly connected below the other side of the double-headed motor 111 through a first fixed rod 3111, a rotating rod 312 is rotatably connected to the second rotating ring 311, a second bevel gear 313 and a straight gear 315 are fixedly connected to the upper end and the lower end of the rotating rod 312 respectively, the meshing component 31 further comprises a third bevel gear 314 which is slidably arranged on a limit rod 1111 on the other side of the double-headed motor 111, the third bevel gear 314 corresponds to the second bevel gear 313, a third rotating ring 3141 is rotatably connected to one side of the third bevel gear 314, which is close to the double-headed motor 111, and a second fixed rod 3142 is fixedly connected between the third rotating ring 3141 and the output end of the telescopic cylinder 1131.

The rotating assembly 32 comprises a sector gear 321 which is meshed with one side of the spur gear 315, a rotating shaft 323 is fixedly connected to one side of the top of the sector gear 321, a shaft sleeve 322 is fixedly connected to the bottom of the double-headed motor 111 at a position corresponding to the rotating shaft 323, the top of the rotating shaft 323 is rotatably connected to the inside of the shaft sleeve 322, a third fixed rod 324 is fixedly connected to the bottom of the sector gear 321, an L-shaped rod 325 is fixedly connected to the bottom of the other side of the fixed plate 121 at a position corresponding to the L-shaped rod 325, a rotating seat 326 is fixedly connected to the bottom of the other side of the fixed plate 121, the other end of the L-shaped rod 325 is rotatably connected to the rotating seat 326, the sampling assembly 33 comprises a sampling chamber 331 which is embedded in the mounting plate 131, an exhaust hole 3312 and a water inlet 3311 which penetrate inside and outside are respectively arranged on the upper side and lower side of the sampling chamber 331, a rotating member 332 is rotatably connected to the inside of the sampling chamber 331, a second sealing plate 3322 and a first sealing plate 3321 which are opposite to the exhaust hole 3312 and the water inlet 3311 are respectively connected to the upper and lower side of the rotating member 332, a hole which penetrates the sampling chamber 331 and extends upwards, a hole which penetrates through the top of the sampling chamber 331, a hole which is fixedly connected to the upper portion of the rotating member, a sliding ring is fixedly connected to the inner wall of the sampling chamber 335, and the inner wall of the sampling chamber which is fixedly connected to the inner wall of the sampling chamber, and the inner wall of the sampling chamber.

Specifically, when the sampling chamber 331 moves upwards, the rotating member 332 drives the sliding ring 333 to move on the third fixed rod 324 through the movable rod 335 and the movable sleeve 334, when the water level of the sampling chamber 331 is determined, the telescopic cylinder 1131 stretches out, so that the second fixed rod 3142 drives the third bevel gear 314 to mesh with the second bevel gear 313 through the third rotating ring 3141, at this moment, the first bevel gear 112 is separated from the driving roller 123, the double-headed motor 111 is started, at this moment, the spur gear 315 rotates and drives the sector gear 321 and the third fixed rod 324 to rotate around the rotating shaft 323, at this moment, the third fixed rod 324 drives the rotating member 332 to rotate through the sliding ring 333, the movable sleeve 334 and the movable rod 335, the first fixed rod 3111 is filled with water, the exhaust hole 3312 is exhausted in the water inlet process of the sampling chamber 331, and after the water inlet is completed, the first 3321 and the second sealing plate 3322 are closed to the water inlet holes 3311 and the exhaust holes 3312, so that a plurality of groups of sampling chambers 331 are simultaneously sealed.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should be covered by the protection scope of the present invention by making equivalents and modifications to the technical solution and the inventive concept thereof.

Claims

1. The utility model provides a water quality monitoring is with different water level sampling device, includes moving mechanism (1) and sets up stop gear (2) on moving mechanism (1), still including setting up sampling mechanism (3) in moving mechanism (1) one side, its characterized in that: the moving mechanism (1) comprises a driving assembly (11), a guide rail assembly (12) and a mounting assembly (13), the guide rail assembly (12) comprises a fixed plate (121) and a belt (125) sleeved on the outer wall of one side of the fixed plate (121), embedding holes (1251) are uniformly distributed on the side face of the belt (125), embedding sleeves (1252) are arranged in the embedding holes (1251), the driving assembly (11) comprises a double-headed motor (111) fixedly connected to the top of the fixed plate (121), the mounting assembly (13) is provided with a plurality of groups, the mounting assembly (13) comprises a mounting plate (131) movably arranged on the other side of the fixed plate (121), the front end of the mounting plate (131) is fixedly connected with a limiting plate (134), and limiting grooves (135) penetrating left and right are formed in the limiting plate (134);

the limiting mechanism (2) comprises a connecting component (21) fixedly connected to one side of the limiting plate (134), and further comprises a limiting component (22) arranged on the connecting component (21), the connecting component (21) comprises a first shell (211), the connecting component (21) further comprises a push-pull electromagnet (212) arranged in the first shell (211), an output end of the push-pull electromagnet (212) is fixedly connected with a connecting piece (2121), the top of the connecting piece (2121) is fixedly connected with a sliding rod (2122), one end of the sliding rod (2122) extends to the inside of the limiting groove (135), and the diameter of the sliding rod (2122) is smaller than the diameter of the inner wall of the embedded sleeve (1252);

the sampling mechanism (3) comprises a rotating component (32) arranged on the other side of the fixed plate (121), a meshing component (31) is arranged between the rotating component (32) and the driving component (11), and the sampling mechanism (3) further comprises a sampling component (33) movably arranged on the rotating component (32).

2. A different water level sampling device for water quality monitoring as claimed in claim 1, wherein: the U-shaped rods (122) are fixedly connected to one side of the fixing plate (121) up and down, the driving roller (123) is rotatably connected to the top of one side of the fixing plate (121) through the U-shaped rods (122), the driving roller (124) is rotatably connected to the bottom of one side of the fixing plate (121) through the U-shaped rods (122), and the belt (125) is rotatably connected to the outer walls of the driving roller (123) and the driving roller (124).

3. A different water level sampling device for water quality monitoring as claimed in claim 2, wherein: both sides output of double-end motor (111) are last all fixedly connected with gag lever post (1111), and sliding connection has first bevel gear (112) on gag lever post (1111) on the motor (111) of double-end near belt (125) one side, and one side that first bevel gear (112) is close to motor (111) rotates and is connected with first rotating ring (1121), is provided with mesh groove (1231) corresponding with first bevel gear (112) on driving roll (123).

4. A different water level sampling device for water quality monitoring as claimed in claim 3, wherein: the driving assembly (11) further comprises a fixed block (113) fixedly connected to the top of the double-headed motor (111), a telescopic cylinder (1131) is fixedly connected to the inside of the fixed block (113), a sliding rod (1132) is fixedly connected to the upper portion of the output end of the telescopic cylinder (1131), and the sliding rod (1132) penetrates through the fixed block (113) and is fixedly connected with the first rotating ring (1121).

5. A different water level sampling device for water quality monitoring as claimed in claim 1, wherein: the installation component (13) further comprises a sliding groove (132) arranged on the other side of the fixed plate (121), a sliding block (133) is connected inside the sliding groove (132) in a sliding mode, and the sliding block (133) is fixedly connected with the installation plate (131).

6. A different water level sampling device for water quality monitoring as claimed in claim 1, wherein: the limiting component (22) comprises a second shell (221) fixedly connected to the top of the first shell (211), a limiting block (222) is connected to the second shell (221) in a sliding mode, the limiting component (22) further comprises clamping grooves (223) uniformly distributed at the front end of the fixing plate (121), the cross section of the limiting block (222) is trapezoid, the clamping grooves (223) correspond to the shape of the limiting block (222), a connecting rod (2221) penetrating the second shell (221) is fixedly connected to the front end of the limiting block (222), a first spring (2222) is sleeved on the connecting rod (2221), and the first spring (2222) is located between the inner wall of the second shell (221) and the front end of the limiting block (222).

7. A different water level sampling device for water quality monitoring as claimed in claim 1, wherein: the meshing assembly (31) comprises a second rotating ring (311), the second rotating ring (311) is fixedly connected below the other side of the double-headed motor (111) through a first fixed rod (3111), a rotating rod (312) is rotatably connected to the second rotating ring (311), and the upper end and the lower end of the rotating rod (312) are fixedly connected with a second bevel gear (313) and a spur gear (315) respectively.

8. The device for monitoring water quality with different water levels as claimed in claim 7, wherein: the meshing assembly (31) further comprises a third bevel gear (314) which is arranged on the limit rod (1111) on the other side of the double-headed motor (111) in a sliding mode, the third bevel gear (314) corresponds to the second bevel gear (313), one side, close to the double-headed motor (111), of the third bevel gear (314) is rotatably connected with a third rotating ring (3141), and a second fixing rod (3142) is fixedly connected between the third rotating ring (3141) and the output end of the telescopic cylinder (1131).

9. The device for monitoring water quality with different water levels as claimed in claim 7, wherein: the rotating assembly (32) comprises a sector gear (321) which is connected to one side of the straight gear (315) in a meshed mode, a rotating shaft (323) is fixedly connected to one side of the top of the sector gear (321), a shaft sleeve (322) is fixedly connected to the bottom of the double-headed motor (111) and corresponds to the rotating shaft (323), the top of the rotating shaft (323) is rotatably connected to the inside of the shaft sleeve (322), a third fixing rod (324) is fixedly connected to the bottom of the sector gear (321), an L-shaped rod (325) is fixedly connected to the bottom of the third fixing rod (324), a rotating seat (326) is fixedly connected to the bottom of the other side of the fixing plate (121) and corresponds to the L-shaped rod (325), and the other end of the L-shaped rod (325) is rotatably connected to the inside of the rotating seat (326).

10. A different water level sampling device for water quality monitoring as defined in claim 9, wherein: the sampling assembly (33) comprises a sampling chamber (331) which is embedded in the mounting plate (131), an exhaust hole (3312) and a water inlet hole (3311) which penetrate inside and outside are respectively arranged on the upper portion and the lower portion of the sampling chamber (331), a rotating piece (332) is connected to the inner portion of the sampling chamber (331) in a rotating mode, a second sealing plate (3322) and a first sealing plate (3321) which are opposite to the exhaust hole (3312) and the water inlet hole (3311) are respectively connected to the upper portion and the lower portion of the rotating piece (332) in a fixed mode, the top of the rotating piece (332) penetrates through the sampling chamber (331) and extends upwards, a hole penetrating through the left portion and the right portion of the rotating piece (332) is arranged on the top of the rotating piece (332), a sliding ring (333) is further arranged on the sampling assembly (33), a movable sleeve (334) is fixedly connected to one side of the sliding ring (333), a movable sleeve (334) is connected to the movable rod (335) in a sliding mode, the other end of the movable rod (335) penetrates through the hole on the rotating piece (332), a second spring (336) is fixedly connected to the inner wall of the movable sleeve (334), and the other end of the second spring (336) is fixedly connected to the movable rod (335).