CN117309501B - Water quality analysis equipment in hydraulic engineering - Google Patents

Water quality analysis equipment in hydraulic engineering Download PDF

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Publication number
CN117309501B
CN117309501B CN202311609130.0A CN202311609130A CN117309501B CN 117309501 B CN117309501 B CN 117309501B CN 202311609130 A CN202311609130 A CN 202311609130A CN 117309501 B CN117309501 B CN 117309501B
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China
Prior art keywords
plate
linkage
cavity
shell
liquid
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CN117309501A (en
Inventor
郦于杰
张海波
李勇
范志华
郑团
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Dezhou Runhong Hardware Electromechanical Equipment Co ltd
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Dezhou Runhong Hardware Electromechanical Equipment Co ltd
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Publication of CN117309501A publication Critical patent/CN117309501A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • G01N1/16Devices for withdrawing samples in the liquid or fluent state with provision for intake at several levels

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention relates to the field of liquid detection and analysis, in particular to water quality analysis equipment in hydraulic engineering. The device comprises a shell, a collecting device and a starting device; the collecting device is inserted into the shell in a sliding way and comprises a plurality of sampling blocks and a linkage mechanism, wherein the sampling blocks are uniformly spaced up and down, and a collecting cavity is formed in each sampling block; the starting device is arranged on the shell. When the liquid level detection device is used, the liquid level position of liquid to be sampled is judged through the starting device, the linkage mechanism is triggered at the liquid level, and the linkage mechanism acts under the action of liquid pressure after being triggered, so that the collecting cavity above the liquid level detection device is closed when the collecting cavity below the liquid level detection device is opened from the triggering position of the linkage mechanism to the lowest collecting cavity in sequence, disturbance to the liquid during sampling is reduced, and the sampling is more accurate.

Description

Water quality analysis equipment in hydraulic engineering
Technical Field
The invention relates to the technical field of liquid detection and analysis, in particular to water quality analysis equipment in hydraulic engineering.
Background
In the research and construction process of hydraulic engineering, the water quality of a target water body is usually required to be analyzed so as to determine the physical and chemical properties of the water body and formulate a reasonable construction scheme. In the process of analyzing water quality, a target water body needs to be sampled, and then chemical or physical detection analysis is carried out on the water body sample so as to determine the water body property of the whole water area.
When sampling water, water samples with different depths in the extracted water area are required to obtain more detection data, so that analysis data of the samples are more comprehensive and accurate. The Chinese patent document with the authorized bulletin number of CN 114295427B discloses a sampling device, which is characterized in that a plurality of sampling boxes capable of being synchronously opened are arranged, and when the water level rises to a set height, a floating plate is utilized to drive a plurality of groups of sampling boxes to be synchronously opened, so that the synchronous sampling process of water levels with different depths is realized. The scheme can realize sampling of liquids with different depths, but the sampling box is synchronously opened during sampling, so that the disturbance to the liquid is large, and the sampling accuracy is influenced.
Disclosure of Invention
According to the defects of the prior art, the invention provides water quality analysis equipment in hydraulic engineering, so as to solve the problem of low sampling accuracy of the existing sampling device when sampling liquids with different depths.
The invention relates to water quality analysis equipment in hydraulic engineering, which adopts the following technical scheme: comprises a shell, a collecting device and a starting device;
the collecting device is inserted into the shell from one side of the shell along the length direction of the shell in a sliding manner, the collecting device comprises a plurality of sampling blocks and a linkage mechanism, the sampling blocks are uniformly spaced up and down, a collecting cavity is formed in each sampling block, and all the collecting cavities are blocked with liquid to be sampled initially;
the starting device is arranged on the shell and is used for judging the liquid level position of liquid to be sampled and triggering the linkage mechanism at the liquid level, and the linkage mechanism acts in a linkage way under the action of liquid pressure after triggering, so that all collecting cavities from the triggering position of the linkage mechanism to the lowest part are sequentially opened from top to bottom, and the collecting cavity above the collecting cavities below the collecting cavities is closed when the collecting cavities below the collecting cavities are opened.
Optionally, the collecting device further comprises a connecting block, the connecting block and the sampling block are alternately stacked, and the top end and the bottom end of the collecting device are both connecting blocks;
the linkage mechanism comprises a first linkage piece, a second linkage piece, a movable opening plate and a plugging plate;
the movable opening plates are arranged on the sampling block correspondingly, a liquid inlet is formed in the top plate of the collecting cavity, the movable opening plates are located above the collecting cavity and can slide along the length direction of the sampling block, the initial movable opening plates are blocked so as to prevent the liquid inlet from being communicated with liquid to be sampled, and after the movable opening plates are unblocked, the movable opening plates slide a preset distance towards the inside of the shell under the action of the liquid to be sampled, so that the liquid inlet is communicated with the liquid to be sampled;
the plurality of plugging plates are arranged, each plugging plate is correspondingly arranged on one connecting block except the uppermost connecting block and can slide inside and outside along the length direction of the sampling block, and the upper ends of the plugging plates can plug the liquid inlets of the collecting cavities adjacent to the upper parts; an elastic piece is arranged between the plugging plate and the corresponding connecting block, and the elastic piece can promote the plugging plate to move towards the center close to the shell so as to plug the liquid inlet; the movable opening plate below the initial plugging plate prevents the plugging plate from moving towards the center close to the shell, so that the plugging plate and the liquid inlet are dislocated;
the first linkage piece is arranged at the uppermost connecting block and can slide up and down; the plurality of second linkage pieces are arranged, each second linkage piece is correspondingly arranged on one connecting block except the uppermost connecting block and can slide up and down, and the upper end of each second linkage piece is positioned in the collecting cavity above the second linkage piece and is in sliding seal with the inner wall of the collecting cavity; the first linkage members initially block the movable opening plate on the adjacent sampling block below the first linkage members from moving inwards, and each second linkage member blocks the movable opening plate on the adjacent sampling block below the second linkage members from moving inwards; after the first linkage piece or one of the second linkage pieces moves downwards for a preset distance, the blocking of the corresponding movable opening plate is released, and the liquid to be sampled enters the current collecting cavity through the liquid inlet and presses the next second linkage piece to move downwards.
Optionally, a linkage gear and a gear sleeve are arranged in each connecting block, the linkage gear and the gear sleeve can rotate around a vertical axis, and the linkage gear is meshed with the gear sleeve;
the first linkage piece comprises a first screw rod and a first lower baffle connected to the lower end of the first screw rod; the first screw is inserted into the gear sleeve in the uppermost connecting block and is in spiral connection with the gear sleeve; the second linkage piece comprises a second screw rod, a second upper baffle plate connected to the upper end of the second screw rod and a second lower baffle plate connected to the lower end of the second screw rod, and the second screw rod is inserted into the gear sleeve in the corresponding connecting block and is in spiral connection with the gear sleeve; the first lower baffle plate and the second lower baffle plate are used for blocking the upper end of the corresponding movable opening plate, and the second upper baffle plate is positioned in the corresponding collecting cavity and is in sliding sealing with the collecting cavity; the starting device enables the linkage gear to rotate so as to drive the gear sleeve to rotate, and the gear sleeve drives the first screw rod or the second screw rod to move up and down through spiral transmission.
Optionally, the starting device comprises a rotating shaft, a floating plate and a starting gear;
the rotating shaft is inserted in the center of the shell and can rotate around the vertical axis, the floating plate is inserted in the shell, the middle part of the floating plate is sleeved on the rotating shaft, the floating plate can move up and down relative to the shell and the rotating shaft, and the floating plate can rotate relative to the rotating shaft;
the starting gear is slidably sleeved on the rotating shaft and can rotate under the drive of the rotating shaft, the starting gear is connected with the floating plate, and the starting gear can move under the drive of the floating plate and can rotate relative to the floating plate;
the movable toothed plate is arranged in the shell and can move inside and outside along the length direction of the shell, the movable toothed plate is meshed with the linkage gear, the movable toothed plate can be meshed with the starting gear when corresponding to the starting gear, the movable toothed plate is provided with a plurality of movable toothed plates which are vertically arranged, and each movable toothed plate corresponds to one connecting block.
Optionally, the lateral wall of sampling piece is provided with the liquid outlet, is provided with the end cap that can dismantle on the liquid outlet.
Optionally, an installation cavity is arranged on the sampling block, the installation cavity is positioned on the upper Fang Juan cavity of the collection cavity and is communicated with the collection cavity through a liquid inlet, the installation cavity is communicated with the two ends of the sampling block along the sliding direction, and the movable opening plate is arranged in the installation cavity in a sliding manner;
a first placing cavity is arranged on one side, far away from the center of the shell, of the collecting cavity on the sampling block, the lower end of the first placing cavity is open, and the upper end of the first placing cavity is communicated with the collecting cavity; the connecting block is provided with a second placing cavity which is communicated up and down, and the second placing cavity and the first placing cavity are positioned on the same side and are communicated up and down; the shutoff board sets up in first chamber and the second of placing and places the chamber, and the upper end of shutoff board is located the roof below of collecting the chamber and can block the inlet, and the lower extreme of shutoff board is blocked by the activity division board.
Optionally, the upper end and the lower end of the plugging plate are horizontally bent towards the same direction, the opening faces the center of the shell, the upper horizontal plate of the plugging plate is inserted into the side plate of the collecting cavity and is positioned below the top plate of the collecting cavity, and the lower horizontal plate of the plugging plate extends out of the second placing cavity and is blocked by the movable opening plate;
the connecting block is further provided with a placing groove communicated with the second placing cavity, and the elastic piece is arranged in the placing groove and connected with the vertical plate of the plugging plate.
Optionally, the elastic member is a spring.
Optionally, a mounting groove is formed in one side of the shell in the length direction, and the acquisition device is slidably inserted into the mounting groove; the inside slide that is provided with of casing, slide are located one side of mounting groove and with the mounting groove intercommunication, and the slide is provided with a plurality ofly from last to down, and every activity pinion rack sets up in a slide.
Optionally, a motor for driving the rotating shaft to rotate is arranged on the shell.
The beneficial effects of the invention are as follows: according to the water quality analysis equipment in the hydraulic engineering, the plurality of sampling blocks distributed up and down are arranged, so that liquid with different heights in the water body can be sampled, the collecting cavities of the sampling blocks are sequentially opened from top to bottom during sampling, disturbance to the liquid during sampling is reduced, and the sampling is more accurate. The liquid level position of the water body is further judged through the design of the floating plate, so that the opening position of the collecting cavity is accurately controlled, and the device is simple to operate and convenient to use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art, it being understood that these drawings are not necessarily drawn to scale.
FIG. 1 is a schematic diagram of the overall structure of a water quality analysis device in hydraulic engineering according to the present invention;
FIG. 2 is a schematic view of the structure of the housing and movable toothed plate of the present invention;
FIG. 3 is a schematic diagram illustrating the connection of the shaft, floating plate and start gear in the present invention;
FIG. 4 is a schematic diagram of the structure of the collecting device in the present invention;
FIG. 5 is a schematic view of a collection device of the present invention in partial cutaway;
FIG. 6 is an enlarged view of FIG. 5 at A;
FIG. 7 is an enlarged view of FIG. 5 at B;
FIG. 8 is an enlarged view of FIG. 7 at C;
FIG. 9 is another partially cut-away schematic illustration of the collection device of the present invention (with the uppermost connecting block and sampling block removed);
fig. 10 is an enlarged view of D in fig. 9.
In the figure: 100. a housing; 200. a starting device; 300. a collection device; 101. a rotation hole; 102. a through groove; 103. a movable toothed plate; 104. a slideway; 105. a mounting groove; 201. a rotating shaft; 202. starting a gear; 203. a floating plate; 310. a connecting block; 311. a placement groove; 320. sampling the sample block; 322. a liquid inlet; 323. a collection chamber; 324. a mounting cavity; 330. a first linkage member; 340. a second linkage member; 350. a movable opening plate; 360. a plugging plate; 370. a linkage gear; 380. a gear sleeve.
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.
As shown in fig. 1 to 10, a water quality analysis apparatus in hydraulic engineering according to the present invention includes a housing 100, a collecting device 300, and a starting device 200.
The collection device 300 is inserted into the shell 100 from one side of the shell 100 along the length direction of the shell 100 in a sliding manner, the collection device 300 comprises a plurality of sampling blocks 320 and a linkage mechanism, the sampling blocks 320 are uniformly spaced up and down, a collection cavity 323 is formed in each sampling block 320, and all collection cavities 323 are isolated from liquid to be sampled initially. The starting device 200 is disposed on the housing 100, the starting device 200 is configured to determine a liquid level position of a liquid to be sampled and trigger a linkage mechanism at the liquid level, and the linkage mechanism is triggered to act under the action of the liquid pressure, so that all collection chambers 323 from the triggering position of the linkage mechanism to the lowest are sequentially opened from top to bottom, and the collection chamber 323 above when the collection chamber 323 below is opened is closed. According to the invention, the liquid with different heights of the water body can be sampled by arranging the plurality of sampling blocks 320, and the collecting cavity 323 is sequentially opened from top to bottom during sampling, so that disturbance to the liquid during sampling is reduced, and the sampling is more accurate.
In a further embodiment, the collecting device 300 further includes a connecting block 310, the connecting block 310 and the sampling block 320 are alternately stacked, and the top end and the bottom end of the collecting device 300 are both the connecting block 310; the linkage mechanism includes a first linkage 330, a second linkage 340, a movable opening plate 350, and a blocking plate 360.
The movable opening plate 350 has a plurality of movable opening plates 350 and each movable opening plate 350 is correspondingly arranged on one sampling block 320, the top plate of the collecting cavity 323 is provided with a liquid inlet 322, the movable opening plate 350 is positioned above the collecting cavity 323 and can slide along the length direction of the sampling block 320, the initial movable opening plate 350 is blocked to further block the liquid inlet 322 from being communicated with liquid to be sampled, and the movable opening plate 350 slides a preset distance towards the inside of the shell 100 under the action of the liquid to be sampled after being unblocked, so that the liquid inlet 322 is communicated with the liquid to be sampled.
A plurality of plugging plates 360, each plugging plate 360 being correspondingly provided to one of the connection blocks 310 except the uppermost connection block 310 and being capable of sliding inward and outward (inward toward the center of the housing 100, outward away from the center of the housing 100) along the length direction of the sampling block 320, the upper end of the plugging plate 360 extending to the sampling block 320 adjacent thereto above and being capable of plugging the liquid inlet 322 of the corresponding collection chamber 323; an elastic piece is arranged between the plugging plate 360 and the corresponding connecting block 310, the elastic piece can promote the plugging plate 360 to move towards the center close to the shell 100 so as to plug the liquid inlet 322, the movable opening plate 350 below the initial plugging plate 360 prevents the plugging plate 360 from moving towards the center close to the shell 100 so as to enable the plugging plate 360 to be misplaced with the liquid inlet 322, and then the plugging of the liquid inlet 322 is relieved.
The first link 330 is disposed at the uppermost connection block 310 and is capable of sliding up and down; the second linkage members 340 are plural, each second linkage member 340 is correspondingly arranged on one connecting block 310 except the uppermost connecting block 310 and can slide up and down, and the upper end of the second linkage member 340 is positioned in the collecting cavity 323 above the second linkage member 340 and is in sliding sealing with the inner wall of the collecting cavity 323; the initial first link 330 blocks inward movement of the movable aperture 350 on its lower adjacent sampling block 320, and each second link 340 blocks inward movement of the movable aperture 350 on its lower adjacent sampling block 320; after the first linkage member 330 or one of the second linkage members 340 moves downward by a preset distance, the blocking of the corresponding movable opening plate 350 is released, the movable opening plate 350 moves inward under the pushing of the liquid, the liquid inlet 322 is in liquid communication with the sample to be taken, meanwhile, except for the uppermost movable opening plate 350, the remaining movable opening plates 350 move inward to release the blocking of the blocking plate 360, the blocking plate 360 blocks the liquid inlet 322 of the last collecting cavity 323, the liquid to be taken enters the current collecting cavity 323 through the liquid inlet 322 and presses the next second linkage member 340 to move downward, and so on.
Further, for the installation of the movable opening plate 350 and the plugging plate 360, the sampling block 320 is provided with an installation cavity 324, the installation cavity 324 is located above the collecting cavity 323, the installation cavity 324 is communicated with the collecting cavity 323 through the liquid inlet 322, the installation cavity 324 is communicated with two ends of the sliding direction of the sampling block 320, and the movable opening plate 350 is slidably arranged in the installation cavity 324.
The sampling block 320 is provided with a first placing cavity on one side of the collecting cavity 323 far away from the center of the shell 100, the lower end of the first placing cavity is open, and the upper end of the first placing cavity is communicated with the collecting cavity 323; the connecting block 310 is provided with a second placing cavity which is communicated up and down, and the second placing cavity and the first placing cavity are positioned on the same side and are communicated up and down; the plugging plate 360 is disposed in the first placement cavity and the second placement cavity, the upper end of the plugging plate 360 is located below the top plate of the collection cavity 323 and can plug the liquid inlet 322, and the lower end of the plugging plate 360 is blocked by the movable opening plate 350. More specifically, the upper and lower ends of the plugging plate 360 are horizontally bent in the same direction, the opening faces the center of the housing 100, the upper horizontal plate of the plugging plate 360 is inserted into the side plate of the collecting cavity 323 and is located below the top plate of the collecting cavity 323, so that the first placing cavity and the collecting cavity 323 are in sliding seal, the lower horizontal plate of the plugging plate 360 extends out of the second placing cavity and is blocked by the movable opening plate 350, and the inner and outer sliding of the plugging plate 360 can plug or open the liquid inlet 322.
The connecting block 310 is further provided with a placing groove 311 communicated with the second placing cavity, and an elastic member is arranged in the placing groove 311 and connected with a vertical plate of the plugging plate 360.
In a further embodiment, a linkage gear 370 and a gear sleeve 380 are provided inside each connection block 310, the gear sleeve 380 being located in the center of the connection block 310, the linkage gear 370 and the gear sleeve 380 being rotatable about a vertical axis and the linkage gear 370 and the gear sleeve 380 being meshed.
The first linkage 330 includes a first screw and a first lower baffle connected to a lower end of the first screw; the first screw is inserted into the gear sleeve 380 in the uppermost connecting block 310 and is spirally connected with the gear sleeve 380; the second linkage member 340 includes a second screw, a second upper baffle plate connected to an upper end of the second screw, and a second lower baffle plate connected to a lower end of the second screw, the second screw being inserted into the gear sleeve 380 in the corresponding connection block 310 and being screw-connected to the gear sleeve 380; the first lower baffle and the second lower baffle serve to block the upper end of the corresponding movable opening plate 350, and the second upper baffle is located inside the corresponding collecting chamber 323 and is slidably sealed with the collecting chamber 323. When in use, the starting device 200 enables the linkage gear 370 at the corresponding position to rotate, the linkage gear 370 drives the corresponding gear sleeve 380 to rotate, and the gear sleeve 380 rotates to drive the first linkage piece 330 or the second linkage piece 340 to move up and down through screw transmission.
In a further embodiment, the starting device 200 comprises a rotating shaft 201, a floating plate 203 and a starting gear 202.
The rotating shaft 201 is inserted in the center of the shell 100 and can rotate around a vertical axis, the floating plate 203 is inserted in the shell 100, the middle of the floating plate 203 is sleeved on the rotating shaft 201, the floating plate 203 can move up and down relative to the shell 100 and the rotating shaft 201, and the floating plate 203 can rotate relative to the rotating shaft 201.
The starting gear 202 is slidably sleeved on the rotating shaft 201 and can rotate under the driving of the rotating shaft 201, the starting gear 202 is connected with the floating plate 203, and the starting gear 202 can move under the driving of the floating plate 203 and can rotate relative to the floating plate 203.
The movable toothed plate 103 is arranged in the shell 100, the movable toothed plate 103 can move inside and outside along the length direction of the shell 100, the movable toothed plate 103 is meshed with the linkage gear 370, the movable toothed plate 103 can be meshed with the starting gear 202 when corresponding to the starting gear 202, the movable toothed plate 103 is provided with a plurality of movable toothed plates which are vertically arranged, and each movable toothed plate 103 corresponds to one connecting block 310. When in use, the floating plate 203 drives the starting gear 202 to determine the starting position, and the floating plate 203 can be used for adapting to different liquid level heights, so that the operation is simple and the use is convenient.
Further, in order to facilitate the installation of the collection device 300 and the movable toothed plate 103, an installation groove 105 is formed on one side of the shell 100 in the length direction, and the collection device 300 is slidably inserted into the installation groove 105; the inside slide 104 that is provided with of casing 100, slide 104 is located one side of mounting groove 105 and communicates with mounting groove 105, and slide 104's both ends are provided with a plurality ofly about the central symmetry of casing 100 from top to bottom to slide 104, and every movable pinion rack 103 sets up in a slide 104, and the connecting block 310 of uppermost and the movable pinion rack 103 of uppermost that corresponds with the installation cavity 324 of the adjacent sampling block 320 of connecting block 310, a connecting block 310 except uppermost, the collection cavity 323 of the adjacent sampling block 320 above this connecting block 310 and the installation cavity 324 of the adjacent sampling block 320 below this connecting block 310 correspond with a movable pinion rack 103 except uppermost.
The center of the housing 100 is provided with a rotation hole 101, the rotation hole 101 communicates with the slide 104, and the rotation shaft 201 is rotatably mounted in the rotation hole 101. The housing 100 is provided with a through groove 102 on a side away from the pickup device 300, the through groove 102 penetrates in the width direction of the housing 100, and the floating plate 203 is provided in the through groove 102 and is capable of sliding up and down along the through groove 102.
In a further embodiment, the sidewall of the sampling block 320 is provided with a liquid outlet (not shown in the figure), and the liquid outlet is provided with a detachable plug, so that the liquid sample can be taken out after the sampling is finished.
Further, a motor (not shown) is provided on the housing 100, and the motor is used for driving the rotation shaft 201 to rotate.
In the initial state, as shown in fig. 6 and 7, the movable opening plate 350 blocks the liquid inlet 322 from the liquid to be sampled, and the plugging plate 360 is dislocated from the liquid inlet 322, so that the liquid inlet 322 is not plugged.
In use, the housing 100 is placed in a liquid to be sampled, the liquid level is determined by the floating plate 203, and then the movable toothed plate 103 with which the start gear 202 is engaged is determined, and hereinafter, the movement process is described by taking the engagement of the start gear 202 with the uppermost movable toothed plate 103 as an example.
When the liquid is stable, the starting gear 202 is meshed with the movable toothed plate 103 at the uppermost end, at this time, the rotating shaft 201 is driven to rotate, the rotating shaft 201 drives the starting gear 202 to rotate, the starting gear 202 drives the movable toothed plate 103 at the uppermost end to move inwards, the movable toothed plate 103 moves to drive the linkage gear 370 in the connecting block 310 at the uppermost end to rotate, the linkage gear 370 drives the corresponding gear sleeve 380 to rotate, the gear sleeve 380 rotates to enable the first linkage member 330 to move downwards through spiral transmission, the first linkage member 330 moves downwards to prevent the corresponding movable opening plate 350 (the movable opening plate 350 adjacent to the connecting block 310 at the uppermost end) from moving, the movable opening plate 350 is retracted (moves towards the direction close to the inside of the shell 100) under the action of liquid pressure, the liquid inlet 322 of the collecting cavity 323 corresponding to the movable opening plate 350 is communicated with the liquid to be sampled, and the liquid enters the collecting cavity 323 from the liquid inlet 322. After the liquid enters the collecting cavity 323, the corresponding second linkage member 340 is pushed to move downwards, so that the limit of the next movable opening plate 350 is released, meanwhile, the plugging plate 360 plugs the liquid inlet 322 of the last collecting cavity 323 under the action of the elastic member, and similarly, the collecting cavities 323 of the lowest sampling blocks 320 are sequentially opened from the starting position to sample. After the sampling is completed, the liquid sampling device is taken out from the water body, the liquid outlet of the sampling block 320 is opened to take out the liquid sample, the liquid samples in the sampling blocks 320 with different heights can be selected at intervals according to the needs for detection, the sample liquids in the sampling blocks 320 with certain intervals hardly disturb each other during sampling, and the sampling accuracy is higher. After the liquid is taken out, the device can be manually reset through the mounting cavity 324 of the sampling block 320, so that the next use is convenient.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (5)

1. A water quality analysis device in hydraulic engineering is characterized in that: comprises a shell, a collecting device and a starting device;
the collecting device is inserted into the shell from one side of the shell along the length direction of the shell in a sliding manner, the collecting device comprises a plurality of sampling blocks and a linkage mechanism, the sampling blocks are uniformly spaced up and down, a collecting cavity is formed in each sampling block, and all the collecting cavities are blocked with liquid to be sampled initially;
the starting device is arranged on the shell and is used for judging the liquid level position of liquid to be sampled and triggering the linkage mechanism at the liquid level, and the linkage mechanism acts in a linkage way under the action of liquid pressure after being triggered, so that all collecting cavities from the triggering position of the linkage mechanism to the lowest part are sequentially opened from top to bottom, and the collecting cavity above the collecting cavity below the collecting cavity is closed when the collecting cavity below the collecting cavity is opened;
the collecting device further comprises a connecting block, the connecting block and the sampling block are alternately stacked, and the top end and the bottom end of the collecting device are both connecting blocks;
the linkage mechanism comprises a first linkage piece, a second linkage piece, a movable opening plate and a plugging plate;
the movable opening plates are arranged on the sampling block correspondingly, a liquid inlet is formed in the top plate of the collecting cavity, the movable opening plates are located above the collecting cavity and can slide along the length direction of the sampling block, the initial movable opening plates are blocked so as to prevent the liquid inlet from being communicated with liquid to be sampled, and after the movable opening plates are unblocked, the movable opening plates slide a preset distance towards the inside of the shell under the action of the liquid to be sampled, so that the liquid inlet is communicated with the liquid to be sampled;
the plurality of plugging plates are arranged, each plugging plate is correspondingly arranged on one connecting block except the uppermost connecting block and can slide inside and outside along the length direction of the sampling block, and the upper ends of the plugging plates can plug the liquid inlets of the collecting cavities adjacent to the upper parts; an elastic piece is arranged between the plugging plate and the corresponding connecting block, and the elastic piece can promote the plugging plate to move towards the center close to the shell so as to plug the liquid inlet; the movable opening plate below the initial plugging plate prevents the plugging plate from moving towards the center close to the shell, so that the plugging plate and the liquid inlet are dislocated;
the first linkage piece is arranged at the uppermost connecting block and can slide up and down; the plurality of second linkage pieces are arranged, each second linkage piece is correspondingly arranged on one connecting block except the uppermost connecting block and can slide up and down, and the upper end of each second linkage piece is positioned in the collecting cavity above the second linkage piece and is in sliding seal with the inner wall of the collecting cavity; the first linkage members initially block the movable opening plate on the adjacent sampling block below the first linkage members from moving inwards, and each second linkage member blocks the movable opening plate on the adjacent sampling block below the second linkage members from moving inwards; after the first linkage piece or one of the second linkage pieces moves downwards for a preset distance, the blocking of the corresponding movable opening plate is released, and the liquid to be sampled enters the current collecting cavity through the liquid inlet and presses the next second linkage piece to move downwards;
a linkage gear and a gear sleeve are arranged in each connecting block, and the linkage gear and the gear sleeve can rotate around a vertical axis and are meshed;
the first linkage piece comprises a first screw rod and a first lower baffle connected to the lower end of the first screw rod; the first screw is inserted into the gear sleeve in the uppermost connecting block and is in spiral connection with the gear sleeve; the second linkage piece comprises a second screw rod, a second upper baffle plate connected to the upper end of the second screw rod and a second lower baffle plate connected to the lower end of the second screw rod, and the second screw rod is inserted into the gear sleeve in the corresponding connecting block and is in spiral connection with the gear sleeve; the first lower baffle plate and the second lower baffle plate are used for blocking the upper end of the corresponding movable opening plate, and the second upper baffle plate is positioned in the corresponding collecting cavity and is in sliding sealing with the collecting cavity; the starting device enables the linkage gear to rotate so as to drive the gear sleeve to rotate, and the gear sleeve drives the first screw rod or the second screw rod to move up and down through spiral transmission;
the starting device comprises a rotating shaft, a floating plate and a starting gear;
the rotating shaft is inserted in the center of the shell and can rotate around the vertical axis, the floating plate is inserted in the shell, the middle part of the floating plate is sleeved on the rotating shaft, the floating plate can move up and down relative to the shell and the rotating shaft, and the floating plate can rotate relative to the rotating shaft;
the starting gear is slidably sleeved on the rotating shaft and can rotate under the drive of the rotating shaft, the starting gear is connected with the floating plate, and the starting gear can move under the drive of the floating plate and can rotate relative to the floating plate;
the movable toothed plate is arranged in the shell and can move inside and outside along the length direction of the shell, the movable toothed plate is meshed with the linkage gear, the movable toothed plate can be meshed with the starting gear when corresponding to the starting gear, the movable toothed plate is provided with a plurality of movable toothed plates which are arranged up and down, and each movable toothed plate corresponds to one connecting block;
the sampling block is provided with an installation cavity, the installation cavity is positioned on the upper Fang Juan cavity of the collection cavity and is communicated with the collection cavity through a liquid inlet, the installation cavity is communicated with the two ends of the sampling block along the sliding direction, and the movable opening plate is arranged in the installation cavity in a sliding manner;
a first placing cavity is arranged on one side, far away from the center of the shell, of the collecting cavity on the sampling block, the lower end of the first placing cavity is open, and the upper end of the first placing cavity is communicated with the collecting cavity; the connecting block is provided with a second placing cavity which is communicated up and down, and the second placing cavity and the first placing cavity are positioned on the same side and are communicated up and down; the plugging plate is arranged in the first placing cavity and the second placing cavity, the upper end of the plugging plate is positioned below the top plate of the collecting cavity and can plug the liquid inlet, and the lower end of the plugging plate is blocked by the movable opening plate;
the upper end and the lower end of the plugging plate are horizontally bent in the same direction, the opening of the plugging plate faces the center of the shell, the upper horizontal plate of the plugging plate is inserted into the side plate of the collecting cavity and is positioned below the top plate of the collecting cavity, and the lower horizontal plate of the plugging plate extends out of the second placing cavity and is blocked by the movable opening plate;
the connecting block is further provided with a placing groove communicated with the second placing cavity, and the elastic piece is arranged in the placing groove and connected with the vertical plate of the plugging plate.
2. The water quality analysis device in hydraulic engineering according to claim 1, wherein: the lateral wall of sampling piece is provided with the liquid outlet, is provided with the end cap that can dismantle on the liquid outlet.
3. The water quality analysis device in hydraulic engineering according to claim 1, wherein: the elastic piece is a spring.
4. The water quality analysis device in hydraulic engineering according to claim 1, wherein: one side of the shell in the length direction is provided with a mounting groove, and the acquisition device is slidably inserted into the mounting groove; the inside slide that is provided with of casing, slide are located one side of mounting groove and with the mounting groove intercommunication, and the slide is provided with a plurality ofly from last to down, and every activity pinion rack sets up in a slide.
5. The water quality analysis device in hydraulic engineering according to claim 1, wherein: the shell is provided with a motor for driving the rotating shaft to rotate.
CN202311609130.0A 2023-11-29 2023-11-29 Water quality analysis equipment in hydraulic engineering Active CN117309501B (en)

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