Polluted water sampling detection system and method

Abstract

The invention relates to the technical field of polluted water sampling, and discloses a polluted water sampling detection system and method.The polluted water sampling detection system comprises a fixed table, a sediment box is fixedly installed on the fixed table, one side of the sediment box is communicated with a water inlet, and the other side of the sediment box is communicated with a water outlet. The horizontal height of the water inlet end of the sampling pipe is gradually reduced in the positive direction, so that the sampling pipes exist on the surface layer, the middle layer and the bottom layer of the sewage, and the sewage of different layers can be injected into a container bottle one by one through the sampling pipes to be stored for detection through the movement of the linkage assembly in the positive direction in cooperation with the lifting assembly; the stratified sampling method ensures that surface clear liquid, middle suspended solids and bottom sediments can be respectively obtained during sampling, so that the stratified sampling method can more accurately reflect the distribution condition of pollutants in sewage, and cross interference caused by mixing of complex components in the sewage can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of polluted water sampling, and in particular to a polluted water sampling detection system and method. Background Art

[0002] When dealing with polluted water bodies, a key observation is that pollutants are often not evenly distributed in the water. Surface water is usually rich in floating objects and oils, while bottom water may contain higher concentrations of sediments and suspended solids. This stratification phenomenon means that simple surface sampling is not enough to fully assess the pollution status of the water body. Therefore, in order to obtain more accurate water quality data, existing polluted water sampling techniques tend to collect samples from different depths of the water body and store these samples in separate containers.

[0003] However, in the existing sampling process, in order to improve the accuracy of detecting contaminated water at different depths, contaminated water at a certain depth is usually directly pumped into a sedimentation tank through a pump-type water sampler, and then allowed to settle naturally to effectively separate the suspended matter and supernatant in the water sample, providing conditions for subsequent stratified sampling, and then using a long-necked funnel or a stratified sampling tube, water samples are collected from different depths in the sedimentation tank and placed in different container bottles, and then tested to obtain more detailed distribution of pollutants, thereby improving the accuracy of contaminated water detection at this depth. However, during the sampling process, the insertion and extraction of the long-necked funnel or the stratified sampling tube may cause disturbance of the water body and destroy the stratified structure that has been formed, thereby affecting the accuracy of the sampling results. Based on this, the present invention purposely provides a contaminated water sampling and detection system and method for extracting contaminated water samples in a sedimentation tank layer by layer and ensuring that the water body stratification is not broken. Summary of the invention

[0004] The purpose of the present invention is to address the deficiencies in the prior art and to provide a contaminated water sampling and detection system and method for extracting contaminated water samples from a sedimentation box layer by layer and ensuring that the water stratification is not broken, so as to solve the technical problem that when contaminated water samples are extracted by traditional sampling tools, it is easy to cause water disturbance, which causes the original stratified structure of the water body to be broken.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A polluted water sampling and detection system, comprising: A fixed platform, on which a sedimentation box is fixedly installed, one side of the sedimentation box is connected with the water inlet, and the other side of the sedimentation box is connected with the water outlet, the moving direction from the water inlet to the water outlet is the positive direction, and the moving direction from the water outlet to the water inlet is the reverse direction, a plurality of sampling tubes are plugged into the bottom of the sedimentation box, and the horizontal height of the water inlet end of the sampling tube decreases in the positive direction, a water level display component is arranged on the sedimentation box, the water level display component is located above the sampling tube, and is connected to the controller, a plurality of container bottles are arranged on the fixed platform, the water outlet end of each sampling tube faces a corresponding container bottle, each sampling tube has a corresponding slide bar, lifting component and reset component, the slide bar is slidably plugged into the top of the sedimentation box, and a sealing cover is fixedly installed at the bottom thereof, the sealing cover cooperates with the water inlet end of the sampling tube, the lifting component is arranged on the top of the sedimentation box, and the reset component is arranged on the slide bar and the lifting component; and The linkage component is slidably installed on the top of the sedimentation box and is connected to the controller. When the linkage component moves in the positive direction, the linkage component moves to the lifting component, and it drives the slide bar to rise through the lifting component. At this time, the sealing cover is away from the water inlet end of the sampling tube; when the linkage component is away from the lifting component, the reset component drives the slide bar to descend, and at this time, the sealing cover blocks the water inlet end of the sampling tube; when the linkage component moves in the reverse direction, the linkage component moves to the lifting component, and it will not drive the slide bar to rise through the lifting component.

[0006] As a further solution of the present invention: the lifting assembly includes a fixed frame, a rotating wheel, a protrusion, an insertion rod and a linkage frame, the linkage frame is fixedly installed on the top of the sliding rod, the fixed frame is fixedly installed on the top of the sedimentation box, the rotating wheel is rotatably installed on the fixed frame, the protrusion is fixedly installed on the rotating wheel, it is eccentrically installed, and it is slidably installed in the linkage frame, the insertion rod is fixedly installed on the rotating shaft of the rotating wheel, and one end of the insertion rod cooperates with the linkage assembly, when the linkage assembly moves in the positive direction, the linkage assembly will drive the rotating wheel to rotate through the insertion rod; when the linkage assembly moves in the reverse direction, the linkage assembly will not drive the rotating wheel to rotate through the insertion rod.

[0007] As a further solution of the present invention: the reset assembly includes a fixing plate and a spring, the fixing plate is fixedly mounted on the fixing frame, the sliding rod passes through the spring, and is connected to the fixing plate through the spring.

[0008] As a further scheme of the present invention: the linkage assembly includes a sliding seat, a rotating rod, a reciprocating screw, a baffle and a torsion spring, the sliding seat is slidably installed on the sedimentation box, the reciprocating screw is rotatably installed on the sedimentation box, and it is threadedly connected to the sliding seat, the sedimentation box is provided with a driving source for driving the reciprocating screw to rotate, the driving source is connected to the controller, the baffle is fixedly installed on the sliding seat, the rotating rod is rotatably installed on the sliding seat through the torsion spring, one end of the rotating rod abuts on the baffle, and the other end of the rotating rod slides with the insertion rod, when the sliding seat moves in the positive direction, the end of the rotating rod away from the baffle abuts on the insertion rod, and the rotating wheel is driven to rotate through the insertion rod; when the sliding seat moves in the reverse direction, one end of the rotating rod abuts on the insertion rod, it will rotate by itself, and the other end of the rotating rod is away from the baffle until one end of the rotating rod is separated from the insertion rod, at which time the torsion spring resets the rotating rod.

[0009] As a further solution of the present invention: a filling area and two loading and unloading areas are provided on the fixed table, the filling area is located between the two loading and unloading areas, and is located below the sedimentation box, a loading plate is slidably connected to the fixed table, and an output source for driving the loading plate to move is provided on the loading plate, the output source is connected to the controller, the container bottle is placed on the loading plate, one side of the loading plate is located in the loading and unloading area, and the other side thereof is located in the filling area.

[0010] As a further solution of the present invention: the contact surface between the insertion rod and the rotating rod is set to be a rounded corner, and a roller is provided at the abutment between the rotating rod and the rounded corner, and the roller is rotatably installed on the rotating rod.

[0011] As a further solution of the present invention: the bottom plate of the sedimentation box is arranged obliquely, and the horizontal height of the bottom plate near the water inlet end is higher than the horizontal height of the bottom plate near the water outlet end.

[0012] A method for sampling and detecting contaminated water, the method is applied to a contaminated water sampling and detecting system as described above, the method comprising the following steps: Step S1: placing a plurality of container bottles under corresponding sampling tubes; Step S2: inject the sewage to be inspected into the sedimentation tank through the water inlet until it reaches the threshold of the water level display component, and wait for the sewage to settle for a period of time; Step S3: The controller controls the linkage assembly to move in the positive direction. Whenever the linkage assembly passes a lifting assembly, it will drive the corresponding sliding rod and sealing cover to rise. At this time, the sampling tube corresponding to the lifting assembly will transport the sewage in the sedimentation tank to the container bottle below it. The horizontal height of the water inlet end of each sampling tube is different. The sewage to be tested in each container bottle is composed of pollutants at different levels of the sewage in the sedimentation tank. Step S4: the container bottle is removed and sealed for inspection, and at the same time, the controller controls the linkage assembly to move back to its original position in the opposite direction; Step S5: drain the wastewater residue through the outlet.

[0013] Beneficial effects of the present invention: 1. In the present invention, the extracted sewage is temporarily stored in a sedimentation box and precipitated for a period of time, so that the sewage is obviously stratified, and the horizontal height of the water inlet end of the sampling tube decreases in the positive direction, ensuring that there are sampling tubes in the surface layer, middle layer and bottom layer of the sewage, and through the movement of the linkage component in the positive direction, and in conjunction with the lifting component, the sewage of different layers can be injected into the container bottle through the sampling tube one by one for storage and inspection, ensuring that the surface clear liquid, the middle layer suspended matter and the bottom layer sediment can be obtained respectively during sampling. Such a stratified sampling method can more accurately reflect the distribution of pollutants in the sewage, and can avoid the problem of cross interference caused by the mixing of complex components in the sewage, which affects the accuracy of the detection results; 2. In the present invention, two rows of container bottles can be installed at the same time through the loading plate. When the container bottles in the sub-packaging area are filled with sewage to be inspected, the controller controls the output source to drive the loading plate to move, so that the container bottles filled with sewage move to the loading and unloading area on one side, and the empty container bottles move to the sub-packaging area. In this way, the container bottles filled with sewage can be replaced while waiting for the sewage in the sedimentation box to be filled and precipitated, thereby reasonably allocating time; 3. In the present invention, by arranging the inclined bottom plate of the sedimentation box, the sewage residue will slide along the inclined plate surface to the water outlet, and combined with the flushing of water introduced from the water inlet, the sewage residue can be discharged more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the reciprocating screw rod in the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the sedimentation box in the present invention; Figure 4 The present invention Figure 2 A schematic diagram of the enlarged structure of part A.

[0016] In the figure: 1. fixed table; 101. loading and unloading area; 102. filling area; 2. sedimentation box; 201. water inlet; 202. water outlet; 3. loading plate; 301. container bottle; 4. sampling tube; 5. sliding rod; 501. linkage frame; 6. sealing cover; 7. lifting assembly; 701. fixed frame; 702. rotating wheel; 703. bump; 704. plug rod; 8. reset assembly; 801. fixed plate; 802. spring; 9. linkage assembly; 901. sliding seat; 902. rotating rod; 903. reciprocating screw; 904. baffle; 905. torsion spring; 10. roller; 11. fillet; 12. water level display assembly. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 4 As shown, the present invention is a polluted water sampling and detection system, comprising: A fixed platform 1 is provided with a sedimentation box 2 fixedly mounted thereon. One side of the sedimentation box 2 is connected to a water inlet 201, and the other side thereof is connected to a water outlet 202. The direction of movement from the water inlet 201 to the water outlet 202 is a positive direction, and the direction of movement from the water outlet 202 to the water inlet 201 is a negative direction. A plurality of sampling tubes 4 are plugged into the bottom of the sedimentation box 2. The horizontal height of the water inlet end of the sampling tube 4 decreases in the positive direction. A water level display component 12 is provided on the sedimentation box 2. The water level display component 12 is located above the sampling tube 4. And it is connected to the controller, a plurality of container bottles 301 are arranged on the fixed platform 1, the water outlet end of each sampling tube 4 faces a corresponding container bottle 301, each sampling tube 4 has a corresponding slide bar 5, a lifting assembly 7 and a reset assembly 8, the slide bar 5 is slidably inserted on the top of the sedimentation box 2, and a sealing cover 6 is fixedly installed on the bottom thereof, the sealing cover 6 cooperates with the water inlet end of the sampling tube 4, the lifting assembly 7 is arranged on the top of the sedimentation box 2, and the reset assembly 8 is arranged on the slide bar 5 and the lifting assembly 7; and The linkage component 9 is slidably installed on the top of the sedimentation box 2 and is connected to the controller. When the linkage component 9 moves in the positive direction, the linkage component 9 moves to the lifting component 7, and it drives the slide bar 5 to rise through the lifting component 7. At this time, the sealing cover 6 is away from the water inlet end of the sampling tube 4; when the linkage component 9 is away from the lifting component 7, the reset component 8 drives the slide bar 5 to descend, and at this time, the sealing cover 6 blocks the water inlet end of the sampling tube 4; when the linkage component 9 moves in the reverse direction, the linkage component 9 moves to the lifting component 7, and it will not drive the slide bar 5 to rise through the lifting component 7.

[0019] In one case of this embodiment, the water level display component 12 can use optical liquid level sensors, float liquid level sensors and other components, and one side of the sedimentation tank 2 can also be set to transparent glass to facilitate observation of the water level. This embodiment is not specifically limited here; it should be noted that the control described in the present invention is a prior art, and the present invention does not improve it. Therefore, there is no need to disclose its specific mechanical structure and circuit structure, which does not affect the integrity of the present invention.

[0020] In actual application of this embodiment, firstly, an empty container bottle 301 is placed under the water outlet end of each sampling tube 4, and then the sewage to be tested is injected into the sedimentation tank 2 through the water inlet 201 to ensure that the water level reaches the height of the water level display component 12, that is, the sewage submerges all the sampling tubes 4, and then the sliding rod 5 is driven up by the lifting component 7 to make the sealing cover 6 away from the water inlet end of the corresponding sampling tube 4. At this time, the sewage will be injected into the corresponding container bottle 301 through the sampling tube 4. It should be noted that it takes a period of time for the sewage to settle after being injected into the sedimentation tank 2, so that the suspended matter in the sewage settles to the bottom, making the upper water sample clearer, so that different levels of pollutant composition can be distinguished when extracting samples. The horizontal height of the water inlet end of each sampling tube 4 is different, so different layers of sewage can be injected into the container bottle 301 for inspection; Specifically, the direction from the water inlet 201 to the water outlet 202 is the positive direction, and the direction from the water outlet 202 to the water inlet 201 is the reverse direction. The horizontal heights of the water inlet ends of the plurality of sampling tubes 4 decrease in the positive direction. Figure 3 Taking the figure as an example, first ensure that the linkage component 9 is located at one end of the sedimentation box 2 close to the water inlet 201, and then the controller controls the linkage component 9 to move in the positive direction, and every time the linkage component 9 passes a lifting component 7, it will drive the corresponding sliding rod 5 and the sealing cover 6 to rise. At this time, the sampling tube 4 corresponding to the lifting component 7 will transport the sewage in the sedimentation box 2 to the container bottle 301 below it. The moving direction of the linkage component 9 determines that the opening order of the sampling tubes 4 is arranged from high to low according to the horizontal height of the water inlet end. The first sampling tube 4 to discharge water is the rightmost sampling tube 4, and then the water level will drop to The linkage assembly 9 moves to the next lifting assembly 7, so that the second sampling tube 4 on the right discharges water, until the water level drops to be flush with the water inlet end of the sampling tube 4 at that location, and the linkage assembly 9 continues to be moved until the leftmost sampling tube 4 has finished discharging water. At this time, each container bottle 301 is filled with sewage, and the sewage in each container bottle 301 belongs to a different layer. Finally, the sewage remaining in the sedimentation tank 2 is emptied through the water outlet 202, and then the sewage is re-injected into the sedimentation tank 2 and the linkage assembly 9 is reset, and the next sewage to be inspected can be packaged; The extracted sewage is temporarily stored in the sedimentation box 2 and precipitated for a period of time, so that the sewage is obviously stratified, and the horizontal height of the water inlet end of the sampling tube 4 decreases in the positive direction, ensuring that the sampling tube 4 exists in the surface layer, middle layer and bottom layer of the sewage, and through the movement of the linkage component 9 in the positive direction and in conjunction with the lifting component 7, the sewage of different layers can be injected into the container bottle 301 through the sampling tube 4 one by one for storage and inspection, ensuring that the surface clear liquid, middle layer suspended matter and bottom layer sediment can be obtained separately during sampling. Such a stratified sampling method can more accurately reflect the distribution of pollutants in the sewage, and can avoid the problem of cross interference caused by the mixing of complex components in the sewage, which affects the accuracy of the detection results.

[0021] like Figure 1-Figure 4 As shown, as a preferred embodiment of the present invention, the lifting assembly 7 includes a fixed frame 701, a rotating wheel 702, a protrusion 703, an insertion rod 704 and a linkage frame 501, the linkage frame 501 is fixedly installed on the top of the sliding rod 5, the fixed frame 701 is fixedly installed on the top of the sedimentation box 2, the rotating wheel 702 is rotatably installed on the fixed frame 701, the protrusion 703 is fixedly installed on the rotating wheel 702, which is eccentrically installed and slidably installed in the linkage frame 501, the insertion rod 704 is fixedly installed on the rotating shaft of the rotating wheel 702, and one end of the insertion rod 704 cooperates with the linkage assembly 9, when the linkage assembly 9 moves in the positive direction, the linkage assembly 9 will drive the rotating wheel 702 to rotate through the insertion rod 704; when the linkage assembly 9 moves in the reverse direction, the linkage assembly 9 will not drive the rotating wheel 702 to rotate through the insertion rod 704.

[0022] When the present embodiment is actually applied, when the linkage component 9 moves the plug rod 704, the plug rod 704 will drive the rotating wheel 702 to rotate. Since the protrusion 703 is eccentrically installed on the rotating wheel 702, the position of the protrusion 703 will change. In fact, the horizontal height of the protrusion 703 will increase, and the protrusion 703 will slide in the linkage frame 501, so that the horizontal height of the linkage frame 501 will increase synchronously, thereby driving the sliding rod 5 to rise synchronously, thereby opening the sealing cover 6. When the linkage component 9 is away from the plug rod 704, the reset component 8 will cause the sliding rod 5 to drop, and the reaction force of the sliding rod 5 dropping will also cause the rotating wheel 702 to rotate in the opposite direction to its original position, and the plug rod 704 will also return to its original position, without affecting the next movement of the linkage component 9.

[0023] like Figure 1-Figure 4 As shown, as a preferred embodiment of the present invention, the reset assembly 8 includes a fixing plate 801 and a spring 802 , the fixing plate 801 is fixedly mounted on the fixing frame 701 , the sliding rod 5 passes through the spring 802 , and is connected to the fixing plate 801 via the spring 802 .

[0024] In actual application of this embodiment, when the linkage component 9 moves to cooperate with one end of the insertion rod 704, the slide bar 5 will squeeze the spring 802 when it rises, and when the linkage component 9 is away from the insertion rod 704, the elastic force of the spring 802 will push the slide bar 5 down, so that the sealing cover 6 re-seals the sampling tube 4, that is, the sealing cover 6 will only be opened when the linkage component 9 cooperates with the insertion rod 704, otherwise the sealing cover 6 will seal the sampling tube 4.

[0025] like Figure 1-Figure 4 As shown, as a preferred embodiment of the present invention, the linkage assembly 9 includes a sliding seat 901, a rotating rod 902, a reciprocating screw rod 903, a baffle 904 and a torsion spring 905. The sliding seat 901 is slidably mounted on the sedimentation box 2, and the reciprocating screw rod 903 is rotatably mounted on the sedimentation box 2 and is threadedly connected to the sliding seat 901. A driving source for driving the reciprocating screw rod 903 to rotate is provided on the sedimentation box 2, and the driving source is connected to the controller. The baffle 904 is fixedly mounted on the sliding seat 901, and the rotating rod 902 is connected to the torsion spring 905 by the torsion spring 905. 05 is rotatably installed on the sliding seat 901, one end of which abuts on the baffle 904, and the other end of which slides with the insertion rod 704. When the sliding seat 901 moves in the positive direction, the end of the rotating rod 902 away from the baffle 904 abuts on the insertion rod 704, and the rotating wheel 702 is driven to rotate through the insertion rod 704; when the sliding seat 901 moves in the reverse direction, one end of the rotating rod 902 abuts on the insertion rod 704, it will rotate by itself, and the other end of it is away from the baffle 904 until one end of the rotating rod 902 is separated from the insertion rod 704, at which time the torsion spring 905 resets the rotating rod 902.

[0026] In one case of this embodiment, the driving source may be a servo motor, a servo motor or other components, or other mechanisms capable of achieving rotational motion, which is not specifically limited in this embodiment.

[0027] When the sliding seat 901 moves in the opposite direction, the resistance of the plug 704 to the rotating rod 902 is greater than the torsion force of the torsion spring 905, so that the rotating rod 902 will rotate on itself until the rotating rod 902 is separated from the plug 704 and then it will be re-connected to the baffle 904 under the torsion force of the torsion spring 905. This design ensures that the linkage assembly 9 can only move the plug 704 in the positive direction, but cannot move the plug 704 in the reverse direction, thereby avoiding the situation where the sealing cover 6 is lifted and leaks when the linkage assembly 9 returns to its original position.

[0028] like Figure 1-Figure 2As shown, as a preferred embodiment of the present invention, a filling area 102 and two loading and unloading areas 101 are provided on the fixed platform 1, the filling area 102 is located between the two loading and unloading areas 101, and it is located below the sedimentation tank 2, a loading plate 3 is slidably connected to the fixed platform 1, and an output source for driving the loading plate 3 to move is provided thereon, the output source is connected to the controller, the container bottle 301 is placed on the loading plate 3, one side of the loading plate 3 is located in the loading and unloading area 101, and the other side thereof is located in the filling area 102.

[0029] In one case of this embodiment, the output source may be an electric cylinder, an electric telescopic rod or other components, or other mechanisms capable of driving the loading plate 3 to move linearly back and forth, which is not specifically limited in this embodiment.

[0030] In actual application, the present embodiment can simultaneously install two rows of container bottles 301 through the loading plate 3. When the container bottles 301 in the sub-packaging area 102 are filled with sewage to be inspected, the controller controls the output source to drive the loading plate 3 to move, so that the container bottles 301 filled with sewage are moved to the loading and unloading area 101 on one side, and the empty container bottles 301 are moved to the sub-packaging area 102. In this way, the container bottles 301 filled with sewage can be replaced while waiting for the sewage in the sedimentation tank 2 to be filled and precipitated, thereby reasonably allocating time.

[0031] like Figure 4 As shown, as a preferred embodiment of the present invention, the contact surface between the insertion rod 704 and the rotating rod 902 is set as a fillet 11, and a roller 10 is provided at the contact point between the rotating rod 902 and the fillet 11, and the roller 10 is rotatably installed on the rotating rod 902.

[0032] In actual application of this embodiment, the sliding contact between the rotating rod 902 and the rounded corner 11 can be transformed into rolling contact through the rotation design of the roller 10, thereby reducing the friction between the two contacts. The design of the rounded corner 11 further ensures the smoothness of the two contacts and separation, avoiding the suddenness of the right-angle structure of the insertion rod 704 when separating.

[0033] like Figure 3 As shown, as a preferred embodiment of the present invention, the bottom plate of the sedimentation box 2 is arranged obliquely, and the horizontal height of the bottom plate near the water inlet 201 is higher than the horizontal height of the bottom plate near the water outlet 202.

[0034] In actual application of this embodiment, by laying out the inclined bottom plate, the sewage residue will slide along the inclined plate surface toward the water outlet 202, and combined with the flushing of water introduced through the water inlet 201, the sewage residue can be discharged more smoothly.

[0035] See also Figure 1-Figure 4As shown, the present invention is a method for sampling and detecting contaminated water, which is applied to a contaminated water sampling and detecting system as described in the above embodiment, and the method comprises the following steps: Step S1: placing a plurality of container bottles 301 under corresponding sampling tubes 4; Step S2: inject the sewage to be inspected into the sedimentation tank 2 through the water inlet 201 until the water level reaches the threshold of the water level display component 12, and wait for the sewage to settle for a period of time; Step S3: The controller controls the linkage assembly 9 to move in the positive direction. Whenever the linkage assembly 9 passes a lifting assembly 7, the corresponding slide bar 5 and the sealing cover 6 will be driven to rise. At this time, the sampling tube 4 corresponding to the lifting assembly 7 will transport the sewage in the sedimentation tank 2 to the container bottle 301 below it. The horizontal height of the water inlet end of each sampling tube 4 is different. The sewage to be tested in each container bottle 301 is composed of pollutants at different levels of the sewage in the sedimentation tank 2. Step S4: the container bottle 301 is removed and sealed for inspection, and at the same time, the controller controls the linkage assembly 9 to move back to its original position in the opposite direction; Step S5: drain the wastewater residue through the outlet 202.

[0036] Working principle of the present invention: The above embodiment of the present invention provides a polluted water sampling detection system and method. First, ensure that the linkage component 9 is located at one end of the sedimentation box 2 close to the water inlet 201, and then the controller controls the linkage component 9 to move in the positive direction. Whenever the linkage component 9 passes a lifting component 7, it will drive the corresponding sliding rod 5 and the sealing cover 6 to rise. At this time, the sampling tube 4 corresponding to the lifting component 7 will transport the sewage in the sedimentation box 2 to the container bottle 301 below it. The moving direction of the linkage component 9 determines the opening order of the sampling tube 4, which is arranged from high to low according to the horizontal height of the water inlet end. The first to discharge water is the rightmost one. The sampling tube 4 on the side, and then the water level will drop to be flush with the water inlet end of the sampling tube 4. As the linkage component 9 moves to the next lifting component 7, the second sampling tube 4 on the right will discharge water, until the water level drops to be flush with the water inlet end of the sampling tube 4 at this location, and the linkage component 9 continues to be moved until the leftmost sampling tube 4 has completed water discharge. At this time, each container bottle 301 is filled with sewage, and the sewage in each container bottle 301 belongs to a different layer. Finally, the remaining sewage in the sedimentation tank 2 is emptied through the water outlet 202, and then the sewage is re-injected into the sedimentation tank 2 and the linkage component 9 is reset, and the next sewage to be inspected can be packaged.

[0037] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A polluted water sampling and detection system, characterized in that: include: A fixed platform (1) is fixedly mounted with a sedimentation box (2), one side of the sedimentation box (2) is connected to a water inlet (201), and the other side of the sedimentation box (2) is connected to a water outlet (202), the direction of movement from the water inlet (201) to the water outlet (202) is a positive direction, and the direction of movement from the water outlet (202) to the water inlet (201) is a negative direction, a plurality of sampling tubes (4) are plugged into the bottom of the sedimentation box (2), the horizontal height of the water inlet end of the sampling tube (4) decreases in the positive direction, a water level display component (12) is arranged on the sedimentation box (2), the water level display component (12) is located above the sampling tube (4), and It is connected to a controller, a plurality of container bottles (301) are arranged on the fixed platform (1), the water outlet end of each sampling tube (4) faces a corresponding container bottle (301), each sampling tube (4) has a corresponding slide bar (5), a lifting assembly (7) and a reset assembly (8), the slide bar (5) is slidably plugged into the top of the sedimentation box (2), and a sealing cover (6) is fixedly installed at the bottom thereof, the sealing cover (6) cooperates with the water inlet end of the sampling tube (4), the lifting assembly (7) is arranged on the top of the sedimentation box (2), and the reset assembly (8) is arranged on the slide bar (5) and the lifting assembly (7); as well as The linkage assembly (9) is slidably mounted on the top of the sedimentation box (2) and is connected to the controller. When the linkage assembly (9) moves in the positive direction, the linkage assembly (9) moves to the lifting assembly (7), and drives the slide bar (5) to rise through the lifting assembly (7). At this time, the sealing cover (6) is away from the water inlet end of the sampling tube (4); when the linkage assembly (9) is away from the lifting assembly (7), the reset assembly (8) drives the slide bar (5) to descend. At this time, the sealing cover (6) blocks the water inlet end of the sampling tube (4); when the linkage assembly (9) moves in the reverse direction, the linkage assembly (9) moves to the lifting assembly (7), and does not drive the slide bar (5) to rise through the lifting assembly (7).

2. A polluted water sampling and detection system according to claim 1, characterized in that: The lifting assembly (7) comprises a fixed frame (701), a rotating wheel (702), a protrusion (703), an insertion rod (704) and a linkage frame (501). The linkage frame (501) is fixedly mounted on the top of the sliding rod (5). The fixed frame (701) is fixedly mounted on the top of the sedimentation box (2). The rotating wheel (702) is rotatably mounted on the fixed frame (701). The protrusion (703) is fixedly mounted on the rotating wheel (702) and is eccentrically mounted and slidably mounted in the linkage frame (501). The insertion rod (704) is fixedly mounted on the rotating shaft of the rotating wheel (702), and one end of the insertion rod cooperates with the linkage assembly (9). When the linkage assembly (9) moves in the positive direction, the linkage assembly (9) drives the rotating wheel (702) to rotate through the insertion rod (704); when the linkage assembly (9) moves in the reverse direction, the linkage assembly (9) does not drive the rotating wheel (702) to rotate through the insertion rod (704).

3. A polluted water sampling and detection system according to claim 2, characterized in that: The reset assembly (8) comprises a fixed plate (801) and a spring (802); the fixed plate (801) is fixedly mounted on the fixed frame (701); the sliding rod (5) passes through the spring (802) and is connected to the fixed plate (801) via the spring (802).

4. A polluted water sampling and detection system according to claim 2, characterized in that: The linkage assembly (9) comprises a sliding seat (901), a rotating rod (902), a reciprocating screw rod (903), a baffle (904) and a torsion spring (905); the sliding seat (901) is slidably mounted on the sedimentation box (2); the reciprocating screw rod (903) is rotatably mounted on the sedimentation box (2) and is threadedly connected to the sliding seat (901); a driving source for driving the reciprocating screw rod (903) to rotate is provided on the sedimentation box (2); the driving source is connected to a controller; the baffle (904) is fixedly mounted on the sliding seat (901); the rotating rod (902) is rotatably mounted on the sliding seat (901) via the torsion spring (905); The sliding seat (901) is on a wheel base (901), one end of which abuts against the baffle plate (904), and the other end of which slides with the insertion rod (704). When the sliding seat (901) moves in the positive direction, the end of the rotating rod (902) away from the baffle plate (904) abuts against the insertion rod (704), and the rotating wheel (702) is driven to rotate through the insertion rod (704); when the sliding seat (901) moves in the reverse direction, one end of the rotating rod (902) abuts against the insertion rod (704), and the rotating rod (902) rotates by itself, and the other end of the rotating rod (902) moves away from the baffle plate (904), until one end of the rotating rod (902) is separated from the insertion rod (704), at which time the torsion spring (905) resets the rotating rod (902).

5. A polluted water sampling and detection system according to claim 1, characterized in that: The fixed platform (1) is provided with a sub-packaging area (102) and two loading and unloading areas (101); the sub-packaging area (102) is located between the two loading and unloading areas (101) and is located below the sedimentation tank (2); a loading plate (3) is slidably connected to the fixed platform (1) and is provided with an output source for driving the loading plate (3) to move; the output source is connected to a controller; the container bottle (301) is placed on the loading plate (3); one side of the loading plate (3) is located in the loading and unloading areas (101) and the other side is located in the sub-packaging area (102).

6. A polluted water sampling and detection system according to claim 4, characterized in that: The contact surface between the insertion rod (704) and the rotating rod (902) is configured as a rounded corner (11), and a roller (10) is provided at the point where the rotating rod (902) and the rounded corner (11) abut against each other. The roller (10) is rotatably mounted on the rotating rod (902).

7. A polluted water sampling and detection system according to claim 1, characterized in that: The bottom plate of the sedimentation box (2) is arranged obliquely, and the horizontal height of the bottom plate at one end close to the water inlet (201) is higher than the horizontal height of the bottom plate at one end close to the water outlet (202).

8. A method for sampling and detecting polluted water, characterized in that: The method is applied to a polluted water sampling detection system as described in any one of claims 1 to 7, and the method comprises the following steps: Step S1: placing a plurality of container bottles (301) under corresponding sampling tubes (4); Step S2: injecting the sewage to be inspected into the sedimentation tank (2) through the water inlet (201) until the water level reaches the threshold of the water level display component (12), and waiting for the sewage to settle for a period of time; Step S3: The controller controls the linkage component (9) to move in the positive direction. Whenever the linkage component (9) passes a lifting component (7), it drives the corresponding sliding rod (5) and the sealing cover (6) to rise. At this time, the sampling tube (4) corresponding to the lifting component (7) will transport the sewage in the sedimentation tank (2) to the container bottle (301) below it. The water inlet end of each sampling tube (4) has a different horizontal height. The sewage to be tested in each container bottle (301) is composed of pollutants at different levels of the sewage in the sedimentation tank (2). Step S4: the container bottle (301) is removed and sealed for inspection, and at the same time, the controller controls the linkage assembly (9) to move back to its original position in the opposite direction; Step S5: drain the wastewater residue through the outlet (202).

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