A water quality sampler and a water sampling method

Abstract

The invention discloses a water quality sampler and a sampling method, and specifically relates to a technical field related to water quality sampling, including a shell and a working chamber, wherein a sampling component for sampling and collecting sewage is arranged inside the shell, a filtering component for processing suspended matter and floating and sinking particles on the surface of sewage is arranged inside the working chamber, and a gain component for adding a fixing agent to the sewage to protect organic matter in the sewage is also arranged inside the shell, and a push column is driven to move by a wiping plate frame, and the movement of the push column can intermittently push the protrusions on the surface of the auxiliary plate to move up and down, so that several groups of matching blocks on the surface of the auxiliary plate are inside the filter screen plate, and the sewage on the surface of the sedimentation tank can be intermittently poured into the working chamber, and the suspended matter with a larger volume can be filtered, thereby reducing the interference with water quality analysis, especially when analyzing certain specific chemical components, and can improve the accuracy of subsequent water quality detection and analysis.

Description

Technical Field

[0001] The invention relates to the technical field of water quality sampling, and in particular to a water quality sampler and a sampling method. Background Art

[0002] Since 90% of the influent water to the sewage treatment plant is industrial wastewater, the water quality is relatively complex and fluctuates frequently, making sewage treatment difficult. As the data of water sample testing and analysis is an important indicator for subsequent process regulation, its authenticity and effectiveness are extremely important. However, due to the large amount of impurities in the influent water, it is difficult to sample the influent water.

[0003] When collecting sewage from the surface of the sedimentation tank, the traditional method is for sampling personnel to collect it directly through a collection bottle. Although the sampling efficiency is high, impurities such as suspended matter and floating particles on the surface of the sewage will also be collected into the collection bottle. The high impurity content of the water sample will affect the accuracy of subsequent detection and analysis.

[0004] Moreover, since the surface of sewage contains a large amount of easily decomposable organic matter, and the sampling personnel cannot quickly and stably add fixatives to the sample water collected in the collection bottle, the organic matter cannot be protected. Direct collection will also cause the loss of organic matter, resulting in reduced sample representativeness and changes in pollutant concentrations, which will increase the difficulty of analysis and affect the interpretation of the results. Therefore, a water quality sampler and sampling method are proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a water quality sampler and a sampling method, which aims to solve the problem that when sampling sewage on the surface of a sedimentation tank, sewage cannot be collected quickly and effectively, the survival of organic matter in the collected water sample cannot be guaranteed, and large suspended matter and floating and sinking particles in the sewage cannot be filtered.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water quality sampler, comprising a shell and a working chamber, a controller is installed above the shell, and two groups of handles are arranged on both sides of the upper part of the shell, the working chamber is installed below the shell, a sampling assembly for sampling and collecting sewage is arranged inside the shell, a filtering assembly for processing suspended matter and floating and sinking particles on the surface of sewage is arranged below the working chamber, and a gain assembly for adding a fixative to the sewage to protect organic matter in the sewage is also arranged inside the shell;

[0007] Preferably, the sampling component comprises a motor, a chute plate and a first wedge block, the motor is fixedly connected to the housing, the output end of the motor is fixedly connected to a rotating shaft, the chute plate is fixedly sleeved on the surface of the rotating shaft, the sampling component controls the gain component to add a fixing agent to the inside of the working chamber through the chute plate, the inside of the chute plate is provided with an irregularly shaped groove, and the inside of the chute plate is slidably provided with a first pulley and a second pulley;

[0008] Preferably, the gain component includes a second piston rod and a cylindrical cam, the second piston rod is located on one side of the slide groove disk, the surface of the second piston rod is slidably connected to the second piston cylinder, one side of the second piston cylinder is fixedly connected to a storage box, the bottom of the storage box is fixedly installed with a fixed box body, the bottom of the fixed box body is fixedly installed with a support platform, the support platform is fixedly connected to the shell, the surface of the second piston cylinder is also fixedly connected to a discharge pipe, and the surface of the discharge pipe is fixedly connected to multiple groups of injection pipes;

[0009] Preferably, the filter assembly includes an active rod, which is located directly below the first wedge-shaped block. The active rod is slidably connected to the working bin, and a return spring is provided between the active rod and the working bin. A push block is detachably connected below the active rod, and a sliding column is provided below the push block, and the sliding column is slidably connected to the working bin.

[0010] Preferably, a connecting plate is rotatably connected above the first pulley, a slide groove member is fixedly connected to one side of the connecting plate, a slider is slidably connected to the inside of the slide groove member, a first piston rod is provided below the slider, a first piston cylinder is slidably connected to the surface of the first piston rod, the first piston cylinder is fixedly connected to the slide groove member, a plurality of groups of conveying hoses are fixedly connected to the surface of the first piston cylinder, a collecting bottle is provided at the other end of the conveying hose, a sampling tube is also movably connected to the surface of the first piston cylinder, the sampling tube is slidably connected to the working chamber, and the collecting bottle is mounted above the friction disk.

[0011] Preferably, a blocking plate is fixedly connected to one side of the sliding block, a through groove is opened inside the blocking plate, a blocking block is arranged inside the through groove, the blocking block and the blocking plate are slidably connected, and a return spring is arranged between the blocking block and the blocking plate, a collecting bin is slidably arranged below the blocking plate, a plurality of groups of friction disks are rotatably connected inside the collecting bin, a plurality of groups of friction rod frames are frictionally connected to the sides of the friction disks, the friction rod frames are fixedly connected to the slide member on the top, a first wedge block is also arranged on one side of the slide member, and the first wedge block is located directly below the connecting plate.

[0012] Preferably, a stirring blade is fixedly connected to the bottom of the rotating shaft, and six groups of the stirring blades are arranged on the surface of the rotating shaft at an angle of sixty degrees. A stirring barrel is also fixedly connected to the surface of the rotating shaft, and the stirring barrel is rotatably connected to the working bin. A plurality of through grooves are provided on the surface of the stirring barrel, and a folding rod is rotatably connected to the top of the second pulley, and the folding rod is rotatably connected to the fixed box body through a pin shaft, one end of the folding rod is rotatably connected to a matching rod through a pin shaft, and one end of the matching rod is rotatably connected to a slider through a pin shaft, and a connecting telescopic rod is provided between the slide groove member and the fixed box body.

[0013] Preferably, one end of the injection pipe is detachably connected to the working chamber, and a cylindrical cam is further provided on the surface of the rotating shaft, a sliding groove is provided on the surface of the cylindrical cam, a second sliding rod is slidably provided on one side of the cylindrical cam, a second wedge block is fixedly connected to one end of the second sliding rod, a push rod is provided below the second wedge block, two groups of movable plates are provided on the surface of the push rod, trapezoidal holes are provided on the surface of the movable plates, and the holes close to one side of the injection pipe are small holes.

[0014] Preferably, the lower end of the push rod is fixedly connected to a wiper frame, four groups of push columns are fixedly connected to the wiper frame around the four sides, two groups of first sliding rods are arranged inside the slide groove of the cylindrical cam, the surface of the first sliding rod is hingedly connected to the hinged rod through a hinge ball, the lower end of the hinged rod is hingedly connected to the sampling tube through a hinge ball, the hinged rod and the working bin are movably connected, limited position frames are arranged on the surfaces of the first sliding rod and the second sliding rod, multiple groups of rubber strips are arranged between the sampling tube and the working bin, and return springs are arranged inside the wiper frame and the working bin.

[0015] Preferably, two groups of swing plates are fixedly connected to the surface of the sliding column, a through hole is provided on the surface of the swing plate, the other end of the swing plate is slidably connected to the working bin via a sliding shaft, a tension spring is provided between the swing plate and the working bin, a filter screen plate is provided below the wiping plate frame, and the wiping plate frame and the filter screen plate are slidably connected, the filter screen plate and the working bin are detachably connected, a plurality of groups of mesh holes are provided inside the filter screen plate, an auxiliary plate is provided below the filter screen plate, the auxiliary plate is connected to the working bin via a spring column, a plurality of groups of matching blocks are provided on the surface of the auxiliary plate, a plurality of groups of protrusions are provided on the surface of the auxiliary plate, and the push column is located in the center of the protrusion.

[0016] Preferably, an inflator is detachably connected to one side of the shell, the output end of the inflator is fixedly connected to a buoyancy tube, a plurality of groups of buoyancy balls are fixedly connected to the corners of the buoyancy tube, an aeration tube is fixedly connected to the surface of the buoyancy tube, the other end of the aeration tube is fixedly connected to the bottom of the working bin, the collecting bin, sliding door and collecting bottle are made of light-proof materials, and the collecting bin is detachably connected to the shell.

[0017] Preferably, the rotating shaft is rotatably connected to the fixed box and the support platform, the limit frame is fixedly connected to the fixed box, a return spring is arranged inside the limit frame, the wiper frame slides on the upper surface of the filter screen, the blocking block is made of plastic with high hardness, the delivery hose and the injection pipe are made of materials with high corrosion resistance and high plasticity, the first piston cylinder and the second piston cylinder are both provided with a one-way valve, and the second piston cylinder is provided with a return spring.

[0018] Preferably, the present invention also provides a water quality sampler and a sampling method, and the method steps are as follows:

[0019] S1: The stirring blade and the stirring barrel are driven to rotate by the rotating shaft, and the sewage and the fixing agent are initially mixed and stirred. The first wedge block is driven to move by the movement of the slide member, and the first wedge block drives the push block to move by pushing the active rod, so that the two sets of swing plates can reciprocate up and down, and the fixing agent and the sewage can be stirred again. At the same time, the movement of the push rod drives the movement of the moving plate, and due to the trapezoidal holes opened on the surface of the moving plate, when the fixing agent is added to the sewage inside the working chamber, the fixing agent can be quickly dispersed inside the working chamber;

[0020] S2: The push rod drives the wiper frame and the push column to move, and the push column pushes the protrusion to move up and down. On the one hand, the sewage will be poured into the interior of the working chamber by the buoyancy of the water, and on the other hand, the sewage on the surface of the sedimentation tank will be sucked into the interior of the working chamber by the up and down swing of the protrusion;

[0021] S3: The chute plate is driven to rotate by the rotating shaft, and the chute plate drives the chute member and the slider to move in an L-shaped motion trajectory. The movement of the slider can drive the first piston rod to slide inside the first piston cylinder, and the sewage can be pumped into the collection bottle to complete the collection of water samples;

[0022] S4: Through the movement of the slide and the slider, not only can the friction rod frame move the friction transmission to drive the friction disk to rotate, but also the collection bottle can be rotated to mix and stir the collected sewage and the fixative again. At the same time, the blocking plate and the blocking block driven by the movement of the slider can prevent the collection bottle from spilling during rotation.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention drives the rotating shaft to rotate by rotating the motor in the sampling component, and the rotating shaft drives the cylindrical cam to rotate. When the cylindrical cam rotates, it drives the second slide bar to move up and down through the slide groove. The second slide bar movement pushes the push rod and the movable plate to move left and right through the second wedge block. The push rod movement drives the push column movement through the wiping plate frame. The push column movement can intermittently push the protrusions on the surface of the auxiliary plate to move up and down, so that several groups of matching blocks on the surface of the auxiliary plate are inside the filter screen plate, which can intermittently pour the sewage on the surface of the sedimentation tank into the interior of the working bin, and at the same time can filter larger suspended matter and floating and sinking particles, reduce interference with water quality analysis, especially when analyzing certain specific chemical components, can effectively improve the accuracy of subsequent water quality detection and analysis.

[0025] 2. The present invention drives the second piston rod to slide inside the second piston cylinder by rotating the rotating shaft, so as to transport the fixing agent inside the storage box to the inside of the discharge pipe, and then spray it into the sewage inside the working bin through the injection port at one end of the injection pipe. The fixing agent can protect specific organic matter in the sewage, prevent the loss of organic matter, and reduce the representativeness of the water sample. At the same time, the rotating shaft can drive the stirring blade and the stirring barrel to rotate inside the working bin, so as to mix and stir the sewage and the fixing agent, thereby improving the mixing efficiency of the sewage and the fixing agent, and avoiding uneven mixing of the fixing agent and the sewage when the fixing agent is directly extracted, which makes it easy to change the chemical composition and affect the survival state of microorganisms.

[0026] 3. The present invention can drive the first slide bar to move up and down through the rotation of the cylindrical cam, and the first slide bar drives the articulated rod to move through the articulated ball. One end of the articulated rod drives the sampling tube to swing through the articulated ball, which can increase the range of sewage extraction by the sampling tube. At the same time, the L-shaped movement trajectory of the slide groove and the slider can also drive the first piston rod and the first piston cylinder to move left and right. The left and right movement of the first piston cylinder can drive the two groups of sampling tubes to move, which can avoid a high content of fixative in the sewage extracted by the sampling tube, thereby destroying organic matter and some chemical substances in the sample water.

[0027] 4. The present invention drives the first wedge block to move through the movement of the slide member. The movement of the first wedge block can intermittently push the active rod to move up and down. The movement of the active rod will push the sliding column to move up and down through the push block. When the sliding column moves up and down, it will drive the two sets of swing plates to swing around the pin shaft. Since through holes are provided on the surface of the swing plate, the sewage and the fixing agent can be mixed and stirred again when the swing plate swings. At the same time, the movement of the moving plate can break up the fixing agent just ejected through the injection pipe, which can improve the efficiency of the fixing agent dispersing inside the working chamber and has a high mixing efficiency with the sewage.

[0028] 5. The present invention drives the blocking plate to move through the movement of the slide member. Since a blocking block is provided inside the blocking plate, when the blocking plate moves to the position of the conveying hose, the blocking block will squeeze and block the conveying hose. At the same time, the movement of the slide member will drive the friction rod frame to move left and right. The movement of the friction rod frame will drive the friction disk to rotate through friction transmission. The rotation of the friction disk can drive multiple groups of collecting bottles to rotate, and can mix the sewage collected in the collecting bottles again to avoid insufficient mixing of the fixative and the sewage. At the same time, the blocking of the blocking block can also prevent the loss of water samples when the collecting bottle is rotated. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of a part of the housing of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the sampling assembly of the present invention;

[0032] Figure 4 It is a schematic diagram of the local structure of the sampling assembly of the present invention;

[0033] Figure 5 It is a schematic diagram of the structure of the gain component of the present invention;

[0034] Figure 6 It is a structural schematic diagram of the cylindrical cam of the present invention;

[0035] Figure 7 This is a schematic diagram of the structure of the filter assembly of the present invention;

[0036] Figure 8 The exploded view of the wiper frame, the filter screen plate and the auxiliary plate of the present invention;

[0037] Fig. 9 is a cross-sectional view of the present invention;

[0038] In the figure: 1, housing; 2, controller; 3, inflator; 4, buoyancy tube; 5, buoyancy ball; 6, collecting bottle; 7, fixed box; 8, support platform; 9, aeration tube; 10, working chamber; 11, collecting chamber; 12, sliding door; 100, sampling assembly; 101, motor; 102, rotating shaft; 103, slide plate; 104, first pulley; 105, connecting plate; 106, slide member; 107, slider; 108, conveying hose; 109, second pulley; 110, folding rod; 111, matching rod; 112, first piston rod; 113, first piston cylinder; 114, connecting telescopic rod; 115, stirring blade; 116, stirring barrel; 117, sampling tube; 118, blocking plate; 119, friction Rod frame; 120, friction disc; 121, blocking block; 122, first wedge block; 200, gain component; 201, second piston rod; 202, second piston cylinder; 203, storage box; 204, discharge pipe; 205, injection pipe; 206, cylindrical cam; 207, first slide bar; 208, hinged rod; 209, second slide bar; 210, second wedge block; 211, push rod; 212, moving plate; 213, wipe plate frame; 214, push column; 215, limit frame; 216, rubber strip; 300, filter component; 301, active rod; 302, push block; 303, swing plate; 304, filter screen plate; 305, auxiliary plate; 306, bump; 307, matching block; 308, sliding column. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0040] See also Figures 1 to 9The present invention provides a technical solution: a water quality sampler, comprising a shell 1, a controller 2, an aerator 3 and a working chamber 10, wherein the controller 2 is installed above the shell 1, and two sets of handles are arranged on both sides of the top of the shell 1, and the working chamber 10 is arranged below the shell 1, and a sampling assembly 100 for sampling and collecting sewage is arranged inside the shell 1, and a filtering assembly 300 for processing suspended matter and floating and sinking particles on the surface of sewage is arranged inside the working chamber 10, and a gain assembly 200 for protecting organic matter in sewage by adding a fixative to the sewage is also arranged inside the shell 1;

[0041] Among them, through the setting of the sampling component 100, not only can the sewage on the surface of the sedimentation tank be sampled and collected, but also the sewage can be stirred and mixed with the fixative before being collected, thereby improving the protection of organic matter and specific chemical components in the sewage. Through the movement of the gain component 200, the speed and dosage of the fixing agent addition can be intermittently controlled, and the filtering component 300 can be assisted to filter the suspended matter and larger floating and sinking particles in the sewage, which can further improve the accuracy of water sample detection and analysis after sewage sampling, and avoid inaccurate detection and analysis.

[0042] The sampling component 100 further includes a motor 101, a chute plate 103 and a first wedge block 122. The motor 101 is fixedly connected to the housing 1. The output end of the motor 101 is fixedly connected to the rotating shaft 102. The chute plate 103 is fixedly sleeved on the surface of the rotating shaft 102. The sampling component 100 controls the gain component 200 to add a fixing agent to the inside of the working chamber 10 through the chute plate 103. An irregularly shaped groove is opened inside the chute plate 103. A first pulley 104 and a second pulley 109 are slidably arranged inside the groove of the chute plate 103.

[0043] Among them, through the movement of the chute plate 103 and the coordinated movement of the irregular grooves opened inside the chute plate 103, the sewage can be fully collected, and the sewage and the fixative can be slowly stirred and mixed, thereby improving the representativeness of the sewage sampling.

[0044] Furthermore, the gain component 200 includes a second piston rod 201 and a cylindrical cam 206, the second piston rod 201 is located on one side of the slide groove plate 103, and the second piston rod 201 is in sliding contact with the slide groove plate 103, and a return spring is provided at the position where the second piston rod 201 slides inside the second piston cylinder 202, the surface of the second piston rod 201 is slidably connected to the second piston cylinder 202, one side of the second piston cylinder 202 is fixedly connected to a storage box 203, a fixed box body 7 is fixedly installed at the bottom of the storage box 203, a support platform 8 is fixedly installed below the fixed box body 7, the support platform 8 is fixedly connected to the housing 1, the surface of the second piston cylinder 202 is also fixedly connected to a discharge pipe 204, and the surface of the discharge pipe 204 is fixedly connected to multiple groups of injection pipes 205;

[0045] Among them, by moving the second piston rod 201 inside the second piston cylinder 202 and controlling the movement speed and movement distance of the second piston rod 201, the dosage and speed of the fixative sprayed inside the working chamber 10 through the injection tube 205 can be accurately controlled to avoid excessive or insufficient fixative affecting the results of water sample detection and analysis.

[0046] Furthermore, the filter assembly 300 includes an active rod 301, which is located directly below the first wedge block 122, and the active rod 301 is in sliding contact with the first wedge block 122. The active rod 301 is slidably connected to the working bin 10, and a return spring is arranged between the active rod 301 and the working bin 10. A push block 302 is detachably connected below the active rod 301, and a sliding column 308 is arranged below the push block 302. The sliding column 308 is slidably connected to the working bin 10.

[0047] The up and down reciprocating motion of the sliding column 308 can further mix the sewage and the fixative inside the working chamber 10, thereby preventing the sewage far from the injection pipe 205 from being fully mixed with the fixative, thereby reducing the representativeness of the extracted water sample.

[0048] Furthermore, a connecting plate 105 is rotatably connected above the first pulley 104, a slide groove member 106 is fixedly connected to one side of the connecting plate 105, a slider 107 is slidably connected inside the slide groove member 106, a first piston rod 112 is provided below the slider 107, a first piston cylinder 113 is slidably connected to the surface of the first piston rod 112, the first piston cylinder 113 is fixedly connected to the slide groove member 106, a plurality of groups of conveying hoses 108 are fixedly connected to the surface of the first piston cylinder 113, a collecting bottle 6 is provided at the other end of the conveying hose 108, a sampling tube 117 is movably connected to the surface of the first piston cylinder 113, the sampling tube 117 is slidably connected to the working chamber 10, and the collecting bottle 6 is installed above the friction disk 120.

[0049] Among them, the movement of the slide member 106 and the slider 107 can drive the movement of the first piston rod 112 and the first piston cylinder 113, and the mixed sewage can be collected and sampled. At the same time, the movement of the sampling tube 117 can sample sewage at different positions and different ranges inside the working chamber 10, which can improve the range of sewage detection.

[0050] Furthermore, a blocking plate 118 is fixedly connected to one side of the slider 107, a through groove is opened inside the blocking plate 118, a blocking block 121 is arranged inside the through groove, the blocking block 121 and the blocking plate 118 are slidably connected, and a return spring is arranged between the blocking block 121 and the blocking plate 118, a collecting bin 11 is slidably arranged below the blocking plate 118, a plurality of groups of friction discs 120 are rotatably connected inside the collecting bin 11, a plurality of groups of friction rod frames 119 are frictionally connected to the sides of the friction discs 120, the top of the friction rod frames 119 is fixedly connected to the slide member 106, a first wedge block 122 is also arranged on one side of the slide member 106, and the first wedge block 122 is located directly below the connecting plate 105.

[0051] Among them, the slider 107 can move back and forth inside the slide member 106, so the movement of the slider 107 can drive the blocking plate 118 and the blocking block 121 to move. When the blocking block 121 moves to the position of the delivery hose 108, the delivery hose 108 can be squeezed and blocked. Since one end of the delivery hose 108 is inserted into the inside of the collecting bottle 6, when the friction rod frame 119 moves to drive the friction disk 120 and the collecting bottle 6 to rotate, the blocking block 121 can cause a fixed limit to the delivery hose 108 to prevent the delivery hose 108 from falling from the inside of the collecting bottle 6, thereby causing the collected water sample to be spilled, thereby avoiding the loss of the water sample, and at the same time, the sewage in the collecting bottle 6 can be mixed with the fixing agent again.

[0052] Furthermore, six groups of stirring blades 115 arranged in a circular array are fixedly connected below the rotating shaft 102, and a stirring barrel 116 is also fixedly connected to the surface of the rotating shaft 102. The stirring barrel 116 is located on the outside of the stirring blade 115, and the stirring barrel 116 is rotatably connected to the working chamber 10. A plurality of through grooves are provided on the surface of the stirring barrel 116. A folding rod 110 is rotatably connected to the top of the second pulley 109. The folding rod 110 is rotatably connected to the fixed box body 7 through a pin shaft. One end of the folding rod 110 is rotatably connected to a matching rod 111 through a pin shaft, and one end of the matching rod 111 is rotatably connected to the slider 107 through a pin shaft. A connecting telescopic rod 114 is provided between the slide groove member 106 and the fixed box body 7.

[0053] Among them, through the rotation of the stirring blade 115 and the stirring barrel 116, the sewage and the fixative can be stirred and mixed. At the same time, through the movement of the folding rod 110 and the matching rod 111, the slide member 106 and the slider 107 can be driven to move in an L-shaped motion trajectory, which is convenient for the first piston rod 112 and the first piston cylinder 113 to sample and extract the mixed sewage.

[0054] Furthermore, one end of the injection pipe 205 is detachably connected to the working chamber 10, and a cylindrical cam 206 is also provided on the surface of the rotating shaft 102. A sliding groove is provided on the surface of the cylindrical cam 206, and a second slide bar 209 is provided inside the sliding groove of the cylindrical cam 206. A second wedge block 210 is fixedly connected to one end of the second slide bar 209, and a push rod 211 is provided below the second wedge block 210. Two groups of movable plates 212 are provided on the surface of the push rod 211, and a trapezoidal hole is provided on the surface of the movable plate 212, and the hole close to the side of the injection pipe 205 is a small hole. A reset spring is provided inside the wiper frame 213 and the working chamber 10.

[0055] Among them, the fixing agent can be sprayed into the interior of the working chamber 10 through the injection pipe 205, and the movement of the movable plate 212 can quickly disperse the sprayed fixing agent into the interior of the working chamber 10. Since the holes on the movable plate 212 close to the injection pipe 205 are small holes, when the movable plate 212 moves toward the injection pipe 205, the aperture of the squeezed sewage water flow will become smaller, and the flow rate of the water flow will increase, so it is more convenient to transfer the fixing agent to various positions of the working chamber 10.

[0056] Furthermore, the lower end of the push rod 211 is fixedly connected to a wiper frame 213, and four groups of push columns 214 are fixedly connected around the wiper frame 213. Two groups of first slide bars 207 symmetrical on the front and rear sides are slidably connected in the slide groove of the cylindrical cam 206. The surface of the first slide bar 207 is hingedly connected to a hinged rod 208 through a hinge ball. The lower end of the hinged rod 208 is hingedly connected to the sampling tube 117 through a hinge ball. The hinged rod 208 and the working chamber 10 are movably connected. Limiting frames 215 are set on the surfaces of the first slide bar 207 and the second slide bar 209, and multiple groups of rubber strips 216 are set between the sampling tube 117 and the working chamber 10.

[0057] The movement of the articulated rod 208 can drive the sampling tube 117 to move, thereby increasing the sampling range and preventing the sewage from being extracted without being fully mixed with the fixative, thereby effectively improving the accuracy of sewage sampling.

[0058] Furthermore, two groups of swing plates 303 are fixedly connected to the surface of the sliding column 308, and a through hole is provided on the surface of the swing plate 303. The other end of the swing plate 303 is slidably connected to the working bin 10 through a sliding shaft, and a tension spring is provided between the swing plate 303 and the working bin 10. A filter screen plate 304 is provided below the wiping plate frame 213, and the wiping plate frame 213 and the filter screen plate 304 are slidably connected, and the filter screen plate 304 and the working bin 10 are detachably connected. A plurality of groups of mesh holes are provided inside the filter screen plate 304, and an auxiliary plate 305 is provided below the filter screen plate 304. The auxiliary plate 305 is connected to the working bin 10 through a spring column, and a plurality of groups of matching blocks 307 are provided on the surface of the auxiliary plate 305. A plurality of groups of protrusions 306 are provided on the surface of the auxiliary plate 305, and the push column 214 is located in the center of the protrusion 306.

[0059] Among them, through the movement of the matching block 307, the sewage can be intermittently poured into the interior of the working chamber 10 to avoid the phenomenon of uneven mixing between direct injection and the fixative. At the same time, through the up and down movement of the auxiliary plate 305, not only the speed of sewage pouring into the interior of the working chamber 10 can be accelerated, but also the direct injection of sewage can be avoided. At the same time, large volumes of suspended solids can be effectively filtered to improve the results of subsequent sewage detection and analysis.

[0060] Furthermore, an inflator 3 is detachably connected to one side of the shell 1, and a buoyancy tube 4 is fixedly connected to the output end of the inflator 3. Multiple groups of buoyancy balls 5 are fixedly connected to the corners of the buoyancy tube 4. An aeration tube 9 is fixedly connected to the surface of the buoyancy tube 4. The other end of the aeration tube 9 is fixedly connected to the bottom of the working bin 10. Two groups of sliding doors 12 are slidably provided on one side of the collecting bin 11. The collecting bin 11, the sliding door 12 and the collecting bottle 6 are made of materials with good light-shielding properties, and the collecting bin 11 is detachably connected to the shell 1.

[0061] The arrangement of the buoyancy tube 4 and the buoyancy ball 5 enables the device to be stable when sampling surface sewage above the sedimentation tank. At the same time, the arrangement of the collecting bin 11 and the sliding door 12, both of which are made of special light-proof materials, can effectively improve the survival of certain specific chemical components in the surface sewage.

[0062] Furthermore, the rotating shaft 102 is rotatably connected to the fixed box 7 and the support platform 8, the limit frame 215 is fixedly connected to the fixed box 7, and a return spring is arranged between the interior of the limit frame 215 and the first slide bar 207 and the second slide bar 209. The wiper frame 213 slides on the upper surface of the filter screen plate 304, the blocking block 121 is made of plastic with high hardness, the delivery hose 108 and the injection pipe 205 are made of materials with high corrosion resistance and high plasticity, the first piston cylinder 113 and the second piston cylinder 202 are both provided with a one-way valve, and the interior of the second piston cylinder 202 is provided with a return spring.

[0063] Furthermore, the present invention also proposes a sampling method of a water quality sampler, and the method steps are as follows:

[0064] S1: The rotating shaft 102 is rotated to drive the stirring blade 115 and the stirring barrel 116 to rotate, so that the sewage and the fixing agent can be initially mixed and stirred. The movement of the sliding groove member 106 drives the first wedge block 122 to move. The first wedge block 122 drives the push block 302 to move by pushing the active rod 301, so that the two sets of swing plates 303 can reciprocate up and down, and the fixing agent and the sewage can be stirred again. At the same time, the movement of the push rod 211 drives the movement of the moving plate 212. Due to the trapezoidal holes on the surface of the moving plate 212, when the fixing agent is added to the sewage inside the working chamber 10, the fixing agent can be quickly dispersed inside the working chamber 10.

[0065] S2: The push rod 211 drives the wiper frame 213 and the push column 214 to move, and the push column 214 pushes the protrusion 306 to reciprocate up and down. On the one hand, the sewage is poured into the interior of the working chamber 10 by the buoyancy of the water, and on the other hand, the sewage on the surface of the sedimentation tank is sucked into the interior of the working chamber 10 by the up and down swing of the protrusion 306;

[0066] S3: The chute plate 103 is driven to rotate by the rotating shaft 102, and the chute plate 103 drives the chute member 106 and the slider 107 to move in an L-shaped motion trajectory. The movement of the slider 107 can drive the first piston rod 112 to slide inside the first piston cylinder 113, and the sewage can be pumped into the collection bottle 6 to complete the collection of water samples;

[0067] S4: The movement of the slide 106 and the slider 107 can not only cause the friction rod frame 119 to move and drive the friction disk 120 to rotate, but also can rotate the collecting bottle 6, so that the collected sewage and the fixing agent can be mixed and stirred again. At the same time, the blocking plate 118 and the blocking block 121 driven by the movement of the slider 107 can prevent the collecting bottle 6 from spilling during rotation.

[0068] Working principle: After the present invention is installed, first add the fixing agent to the inside of the storage box 203, then open the two sets of sliding doors 12 to place multiple sets of collection bottles 6 above the friction disk 120 set inside the collection bin 11, insert one end of the delivery hose 108 into the inside of the collection bottle 6, and then close the sliding door 12 to ensure that the collected sample water will not be directly exposed to the sun and some organic matter will be lost, and then turn on the inflator 3 to inflate the inside of the buoyancy tube 4 and the buoyancy ball 5, which can ensure that the device is in a stable state above the sedimentation tank, which is convenient for sampling sewage on the surface of the sedimentation tank;

[0069] When the preparation work is completed, the device is placed above the sedimentation tank where water quality sampling is required. When the device is stable, the motor 101 is started to rotate to drive the rotating shaft 102 to rotate. The rotation of the rotating shaft 102 will drive the cylindrical cam 206 to rotate. The rotation of the cylindrical cam 206 can drive the first slide bar 207 and the second slide bar 209 to move up and down through the slide groove arranged on the surface. The up and down movement of the second slide bar 209 can drive the second wedge block 210 to move. When the second wedge block 210 moves, it will push the push rod 211 to reciprocate left and right through the inclined surface. The reciprocating movement of the push rod 211 can drive the reciprocating movement of the wiper frame 213 below. When the wiper frame 213 reciprocates, it will drive multiple groups of push columns 214 to reciprocate. The movement of the push column 214 can intermittently push the protrusion 30 on the surface of the auxiliary plate 305 6. When the push column 214 contacts the protrusion 306, since the auxiliary plate 305 is connected to the bottom of the working chamber 10 by a spring column, when the push column 214 is disconnected from the protrusion 306, the auxiliary plate 305 can reciprocate up and down as a whole, and the movement of the auxiliary plate 305 can drive the movement of multiple groups of matching blocks 307. Since the matching blocks 307 and the mesh openings on the surface of the filter screen plate 304 have the same shape, when the matching blocks 307 move up and down, the mesh openings of the filter screen plate 304 can be blocked intermittently. At this time, larger suspended matter and floating particles will be filtered, and sewage will flow to the inside of the working chamber 10 through the mesh openings of the filter screen plate 304, which can not only filter the suspended matter, but also avoid damaging the sewage, thereby reducing the representativeness of water sample collection;

[0070] Moreover, the rotation of the rotating shaft 102 will drive the stirring blade 115 and the stirring barrel 116 to rotate inside the working chamber 10. When the sewage is poured into the working chamber 10, the rotation of the rotating shaft 102 will also drive the chute plate 103 to rotate. The rotation of the chute plate 103 will intermittently push the second piston rod 201 to slide inside the second piston cylinder 202, and the fixing agent inside the storage box 203 can be intermittently transported to the inside of the discharge pipe 204, and then sprayed into the sewage inside the working chamber 10 by the injection pipe 205 on the surface of the discharge pipe 204. At the same time, the rotation of the stirring blade 115 and the stirring barrel 116 can stir and mix the sewage and the fixing agent, which can prevent the sewage from being easily contaminated. The degraded organic matter is lost. At the same time, since the injection ports of the multiple injection pipes 205 are located on one side of the two groups of movable plates 212, and the movable plates 212 are provided with trapezoidal holes, when the push rod 211 moves left and right, it will drive the movable plates 212 to move. Since the small opening of the trapezoidal holes provided on the surface of the movable plates 212 is located on one side of the injection port of the injection pipe 205, when the movable plates 212 move to a position close to the injection pipe 205, the movement of the movable plates 212 can better transport the injected fixing agent to the interior of the entire working chamber 10, and fully contact and mix with the sewage inside the working chamber 10, the mixing efficiency is high, and it is convenient to stir the sewage inside the working chamber 10 later.

[0071] When the chute plate 103 rotates, the first pulley 104 and the second pulley 109 are driven to move through the internal chute. Since the chute inside the chute plate 103 is irregularly shaped, when the first pulley 104 moves, it drives the chute member 106 to move left and right. At the same time, when the second pulley 109 moves, it drives the folding rod 110 to swing around the pin. The swing of the folding rod 110 drives the matching rod 111 to swing through the pin, and the swing of the matching rod 111 drives the slider 107 to swing around the chute member 106 through the pin. The slider 107 slides back and forth, and the first pulley 104 drives the slide member 106 to move left and right, so the slider 107 moves in an L-shaped motion state, and the slider 107 drives the first piston rod 112 to slide inside the first piston cylinder 113 when moving back and forth, and the sewage can be collected through the sampling tube 117. At the same time, since the back and forth movement of the slider 107 is intermittent, the sewage and the fixative can be fully mixed and stirred before the sewage is collected, thereby improving the protection of organic matter;

[0072] When the first piston rod 112 slides inside the first piston cylinder 113 through the two sets of sampling tubes 117 to extract the sewage after adding the fixative, the movement of the first slide bar 207 will drive the two sets of hinged rods 208 to move up and down through the hinged ball. Since one end of the sampling tube 117 is movably connected to the surface of the first piston cylinder 113, the hinged rod 208 will drive the two sets of sampling tubes 117 to swing inside the working chamber 10 through the hinged ball below when it moves. The movement of the sampling tube 117 can extract the sewage near the injection port of the injection tube 205, and can also extract the sewage far away from the injection port of the injection tube 205, so as to avoid the fixative just being ejected through the injection port of the injection tube 205. The sewage is not fully mixed with the sewage before being extracted by the sampling tube 117, which affects the protection of organic matter. Even if the sampling tube 117 extracts sewage near the injection port of the injection tube 205, when the sampling tube 117 is away from the injection port of the injection tube 205, the fixative may not be completely dispersed into the entire interior of the working chamber 10. At this time, the sewage extracted by the sampling tube 117 has a low content of fixative, so it can effectively avoid a high content of fixative in the extracted sewage. After a certain amount of sewage extracted away from the injection port of the injection tube 205 enters the interior of the collection bottle 6, it can dilute the fixative contained in the sewage extracted near the injection port to a certain extent, thereby avoiding affecting the results of subsequent detection and analysis.

[0073] When the slide member 106 moves forward and backward, it also drives the first wedge block 122 to move. When the first wedge block 122 moves, it pushes the active rod 301 to move up and down through the inclined surface. The up and down movement of the active rod 301 can drive the push block 302 to push the sliding column 308 to move up and down. The up and down movement of the sliding column 308 drives the two groups of swing plates 303 to move up and down. Since a plurality of through holes are provided on the surface of the swing plate 303, when the swing plate 303 moves up and down, the sewage and the fixing agent inside the working chamber 10 can be fully mixed again, and the mixing rate between the fixing agent and the sewage can be improved again.

[0074] At the same time, when the slider 107 slides in the slide groove 106 in an L-shaped motion trajectory, and the first piston rod 112 slides in the first piston cylinder 113 through the sampling tube 117 to extract sewage, the movement of the slider 107 can drive the blocking plate 118 to make an L-shaped motion. Since a through groove is provided inside the blocking plate 118, and a blocking block 121 is provided for sliding inside the through groove, when the blocking plate 118 drives the through groove to move toward the position of the delivery hose 108, the blocking block 121 squeezes and blocks the delivery hose 108, and the first piston cylinder 113 is also provided with a through groove. The movement of 13 will drive the friction rod frame 119 to move left and right. When the friction rod frame 119 moves, it will cause friction transmission to drive the friction disk 120 to rotate. The rotation of the friction disk 120 will drive the collection bottle 6 above to rotate. The blocking of the blocking block 121 can prevent the collection bottle 6 from spilling during the rotation process, thereby avoiding the loss of water quality samples. At the same time, it can also make the sewage extracted from the collection bottle 6 and the fixative in the sewage mix again, so as to improve the accuracy of subsequent sewage sample detection and analysis, reduce the difficulty of analysis, and improve the accuracy of result interpretation.

[0075] While embodiments of the present invention have been shown and described, those skilled in the art will appreciate that numerous changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and scope of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A water sampler, comprising a housing (1) and a working chamber (10), characterized in that: The working chamber (10) is arranged below the housing (1); a sampling assembly (100) for sampling and collecting sewage is arranged inside the housing (1); a filtering assembly (300) for treating suspended matter and floating and sinking particles on the surface of sewage is arranged inside the working chamber (10); and a gain assembly (200) for adding a fixative to the sewage to protect organic matter in the sewage is also arranged inside the housing (1); The sampling component (100) comprises a motor (101), a chute plate (103) and a first wedge block (122); the motor (101) is fixedly connected to the housing (1); the output end of the motor (101) is fixedly connected to a rotating shaft (102); the chute plate (103) is fixedly sleeved on the surface of the rotating shaft (102); the sampling component (100) controls the gain component (200) to add a fixing agent to the interior of the working chamber (10) through the chute plate (103); an irregularly shaped groove is provided inside the chute plate (103); a first pulley (104) and a second pulley (109) are slidably provided inside the chute plate (103); The gain component (200) comprises a second piston rod (201) and a cylindrical cam (206), wherein the second piston rod (201) is located at one side of the slide groove plate (103), the surface of the second piston rod (201) is slidably connected to the second piston cylinder (202), and the rotation of the slide groove plate (103) intermittently pushes the second piston rod (201) to slide inside the second piston cylinder (202), one side of the second piston cylinder (202) is fixedly connected to a material storage box (203), the bottom of the material storage box (203) is fixedly installed with a fixed box body (7), a support platform (8) is fixedly installed below the fixed box body (7), and the support platform (8) is fixedly connected to the housing (1), the surface of the second piston cylinder (202) is also fixedly connected to a discharge pipe (204), and the surface of the discharge pipe (204) is fixedly connected to multiple groups of injection pipes (205); The filter assembly (300) comprises an active rod (301), the active rod (301) being located directly below the first wedge block (122), and the active rod (301) and the first wedge block (122) being in sliding contact, the active rod (301) being in sliding connection with the working bin (10), and a return spring being provided at the sliding position, a push block (302) being detachably connected below the active rod (301), a sliding column (308) being provided below the push block (302), and the sliding column (308) being in sliding connection with the working bin (10); A connecting plate (105) is rotatably connected to the top of the first pulley (104), a slide groove (106) is fixedly connected to one side of the connecting plate (105), a slider (107) is slidably connected to the inside of the slide groove (106), a first piston rod (112) is arranged below the slider (107), a first piston cylinder (113) is slidably connected to the surface of the first piston rod (112), the first piston cylinder (113) is fixedly connected to the slide groove (106), a plurality of groups of conveying hoses (108) are fixedly connected to the surface of the first piston cylinder (113), a collecting bottle (6) is arranged at the other end of the conveying hose (108), a sampling tube (117) is movably connected to the surface of the first piston cylinder (113), and the sampling tube (117) is slidably connected to the working chamber (10); A blocking plate (118) is fixedly connected to one side of the slider (107), a through slot is provided inside the blocking plate (118), a blocking block (121) is provided inside the through slot, the blocking block (121) is slidably connected to the blocking plate (118), and a reset element is provided at the sliding position, a collecting bin (11) is slidably provided below the blocking plate (118), a plurality of friction discs (120) are rotatably connected inside the collecting bin (11), and the friction discs (120) are The side friction connection has multiple groups of friction rod frames (119), the upper part of the friction rod frames (119) is fixedly connected to the slide member (106), one side of the slide member (106) is also provided with a first wedge block (122), the first wedge block (122) is located directly below the connecting plate (105), the collecting bottle (6) is arranged above the friction disc (120), and the first piston rod (112) and the blocking plate (118) are respectively located on both sides of the slider (107); A stirring blade (115) is fixedly connected below the rotating shaft (102). Six groups of stirring blades (115) are arranged on the surface of the rotating shaft (102) at an angle of sixty degrees. A stirring barrel (116) is also fixedly connected to the surface of the rotating shaft (102). The stirring barrel (116) is rotatably connected to the working chamber (10). The surface of the stirring barrel (116) is provided with a plurality of through grooves. A folding rod (110) is rotatably connected above the second pulley (109). The folding rod (110) is rotatably connected to the fixed housing (7) via a pin shaft. One end of the folding rod (110) is rotatably connected to a matching rod (111) via a pin shaft. One end of the matching rod (111) is rotatably connected to a slider (107) via a pin shaft. A connecting telescopic rod (114) is arranged between the slide member (106) and the fixed housing (7). One end of the injection pipe (205) is detachably connected to the working chamber (10), a cylindrical cam (206) is further provided on the surface of the rotating shaft (102), a sliding groove is provided on the surface of the cylindrical cam (206), and the sliding groove is arranged in an arc shape, a second sliding rod (209) is slidably provided on one side of the cylindrical cam (206), a second wedge block (210) is fixedly connected to one end of the second sliding rod (209), a push rod (211) is provided below the second wedge block (210), two groups of movable plates (212) are provided on the surface of the push rod (211), a trapezoidal hole is provided on the surface of the movable plate (212), and the hole close to the side of the injection pipe (205) is a small hole; The lower end of the push rod (211) is fixedly connected to a wiper frame (213), and four groups of push columns (214) are fixedly connected around the wiper frame (213). Two groups of first slide rods (207) are arranged inside the slide groove of the cylindrical cam (206), and the two groups of slide rods (207) slide in the arc-shaped slide groove opened on the surface of the cylindrical cam (206). The surface of the first slide rod (207) is hingedly connected to a hinge rod (208) through a hinge ball. The lower end of (208) is hingedly connected to the sampling tube (117) via a hinge ball, the hinged rod (208) and the working chamber (10) are movably connected, the surfaces of the first sliding rod (207) and the second sliding rod (209) are both provided with a limit frame (215), a plurality of groups of rubber strips (216) are provided between the sampling tube (117) and the working chamber (10), and a return spring is provided at the internal connection position between the wiper frame (213) and the working chamber (10); Two groups of swing plates (303) are fixedly connected to the surface of the sliding column (308), and a through hole is provided on the surface of the swing plate (303). The other end of the swing plate (303) is slidably connected to the working bin (10) via a sliding shaft. A tension spring is provided between the swing plate (303) and the working bin (10). A filter screen plate (304) is provided below the wiping plate frame (213), and the wiping plate frame (213) and the filter screen plate (304) are slidably connected. The filter screen plate (304) and the working bin (10) are detachably connected. A plurality of groups of mesh holes are provided inside the filter screen plate (304). An auxiliary plate (305) is provided below the filter screen (304), the auxiliary plate (305) is connected to the working chamber (10) via a spring column, a plurality of groups of matching blocks (307) are provided on the surface of the auxiliary plate (305), a plurality of groups of protrusions (306) are provided on the surface of the auxiliary plate (305), the push column (214) is located in the middle of the protrusion (306), and the lower end of the push column (214) is in contact with the protrusion (306), the matching block (307) is located directly below a plurality of groups of mesh holes opened inside the filter screen plate (304), and the matching block (307) has the same shape as the mesh holes opened in the filter screen plate (304); An inflator (3) is detachably connected to one side of the shell (1); an output end of the inflator (3) is fixedly connected to a buoyancy tube (4); a plurality of groups of buoyancy balls (5) are fixedly connected to the corners of the buoyancy tube (4); an aeration tube (9) is fixedly connected to the surface of the buoyancy tube (4); the other end of the aeration tube (9) is fixedly connected to the bottom of the working bin (10); two groups of sliding doors (12) are slidably provided on one side of the collection bin (11); the collection bin (11), the sliding door (12) and the collection bottle (6) are made of a material with good light-shielding properties; and the collection bin (11) is detachably connected to the shell (1).

2. A water quality sampler according to claim 1, characterized in that: The rotating shaft (102) is rotatably connected to the fixed housing (7) and the support platform (8); the limit frame (215) is fixedly connected to the fixed housing (7); a return spring is arranged inside the limit frame (215); the wiper frame (213) slides on the upper surface of the filter screen plate (304); the blocking block (121) is made of plastic with high hardness; the delivery hose (108) and the injection pipe (205) are made of materials with high corrosion resistance and high plasticity; a one-way valve is arranged inside the first piston cylinder (113) and the second piston cylinder (202); and a return element is arranged inside the second piston cylinder (202); two sets of handles are arranged on both sides above the housing (1); and a controller (2) is installed above the housing (1).

3. The sampling method of a water quality sampler according to claim 2, characterized in that: The method steps are as follows: S1: The rotating shaft (102) is driven to rotate the stirring blade (115) and the stirring barrel (116), so that the sewage and the fixing agent are initially mixed and stirred. The movement of the sliding groove member (106) drives the first wedge block (122) to move. The first wedge block (122) drives the push block (302) to move by pushing the active rod (301), so that the two sets of swing plates (303) can move up and down, so that the fixing agent and the sewage can be stirred again. At the same time, the movement of the push rod (211) drives the movement of the moving plate (212). Due to the trapezoidal holes provided on the surface of the moving plate (212), when the fixing agent is added to the sewage inside the working chamber (10), the fixing agent can be quickly dispersed inside the working chamber (10); S2: The push rod (211) drives the wiper frame (213) and the push column (214) to move, and the push column (214) pushes the protrusion (306) to move up and down. On the one hand, the sewage is poured into the interior of the working chamber (10) by the buoyancy of the water, and on the other hand, the sewage on the surface of the sedimentation tank is sucked into the interior of the working chamber (10) by the up and down swing of the protrusion (306); S3: The chute plate (103) is driven to rotate by the rotating shaft (102), and the chute plate (103) drives the chute member (106) and the slider (107) to move in an L-shaped motion trajectory. The movement of the slider (107) can drive the first piston rod (112) to slide inside the first piston cylinder (113), so that the sewage can be pumped into the collection bottle (6), thereby completing the collection of the water sample; S4: The movement of the slide member (106) and the slider (107) can not only cause the friction rod frame (119) to move and drive the friction disk (120) to rotate, but also can cause the collection bottle (6) to rotate, so that the collected sewage and the fixative are mixed and stirred again. At the same time, the blocking plate (118) and the blocking block (121) driven by the movement of the slider (107) can prevent the collection bottle (6) from spilling when rotating.

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