CN114935639A - Sewage detection device for environment detection - Google Patents
Sewage detection device for environment detection Download PDFInfo
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- CN114935639A CN114935639A CN202210875198.2A CN202210875198A CN114935639A CN 114935639 A CN114935639 A CN 114935639A CN 202210875198 A CN202210875198 A CN 202210875198A CN 114935639 A CN114935639 A CN 114935639A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1886—Water using probes, e.g. submersible probes, buoys
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
- G01N2001/1427—Positive displacement, piston, peristaltic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
The invention discloses a sewage detection device for environment detection, which relates to the field of environment detection equipment and comprises a sampling tube, a buoyancy disc, a liquid pumping assembly and a detection mechanism, wherein a placement groove is formed in the middle of the buoyancy disc, the sampling tube is embedded in the placement groove, a rubber pad is embedded in the placement groove, the sampling tube floats on the surface of sewage under the bearing action of the buoyancy disc, a rotating column is arranged in the sampling tube, and the edge of the rotating column is in contact with the inner wall of the sampling tube. According to the invention, the sampling pipe floats on the surface of the sewage under the buoyancy action of the buoyancy disc, and the buoyancy disc can move on the surface of the sewage under the action of the moving mechanism, so that the buoyancy disc plays a role of a pleasure boat, the sampling pipe can be moved to a position needing sampling, the sampling of the sampling pipe is not limited by the area of the sewage pool, the sewage in the center of the sewage pool can be sampled, the sampling is more representative, and the sewage detection result is more representative.
Description
Technical Field
The invention relates to the field of environment detection equipment, in particular to a sewage detection device for environment detection.
Background
Domestic sewage is wastewater discharged in daily life of residents and mainly comes from residential buildings and public buildings, such as houses, institutions, schools, hospitals, shops, public places, industrial enterprise toilets and the like. The pollutants contained in the domestic sewage are mainly organic matters (such as protein, carbohydrate, fat, urea, ammonia nitrogen and the like) and a large number of pathogenic microorganisms (such as parasitic ova, intestinal infectious viruses and the like), the organic matters existing in the domestic sewage are extremely unstable and easy to decay to generate stink, bacteria and pathogens propagate in large quantities by taking the organic matters in the domestic sewage as nutrition, so that infectious diseases can spread and spread, and therefore, the domestic sewage needs to be treated before being discharged.
At present, certain disadvantages still exist in sewage sampling detection: firstly, because the area of the sewage pool is large, people standing beside the sewage pool are difficult to sample the central area of the sewage pool, and only the water area close to the edge of the sewage pool can be sampled, and obviously, the sampling mode is not representative, so that the analysis result is wrong; secondly, the sampling device in the prior art can only take one group of samples at a time, and mostly is carried out in a mode and steps of sampling once and then detecting, so that a large amount of time is wasted, and the progress of sewage sampling and detecting is reduced; the pH test paper detection method is a commonly used method for detecting the pH value of sewage, the traditional mode that the test paper detection end is taken by hands to contact with sewage for detection mostly can cause the pollution of the sewage by the pH test paper, so that the detection results of other subsequent parameters of the sewage are inaccurate, and meanwhile, when a plurality of samples of sewage are required to be detected, the detection steps are complicated and the detection time is long.
Therefore, it is necessary to provide a sewage detecting apparatus for environmental detection to solve the above problems.
Disclosure of Invention
The present invention is directed to a sewage detection device for environmental detection, which solves the above problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a sewage detection device for environmental detection comprises a sampling tube, a buoyancy disc, a liquid pumping assembly and a detection mechanism, wherein a placement groove is formed in the middle of the buoyancy disc, the sampling tube is embedded in the placement groove, a rubber pad is embedded in the placement groove, the sampling tube floats on the surface of sewage under the bearing action of the buoyancy disc, a rotating column is arranged in the sampling tube, the edge of the rotating column is in contact with the inner wall of the sampling tube, a plurality of groups of liquid collecting cavities for containing sewage are formed in the top of the rotating column, liquid inlet holes are formed in the bottoms of the liquid collecting cavities, the liquid pumping assembly is fixedly arranged at the eccentric position of the bottom of the sampling tube and is communicated with liquid spraying holes in the bottom of the sampling tube, the rotating column is driven to rotate in the sampling tube by the rotation mechanism, and in the rotating process of the rotating column, the liquid inlet holes in the bottoms of the liquid collecting cavities can coincide with the liquid spraying holes in the bottom of the sampling tube, after the sampling of each group of liquid collecting cavities on the rotating column is finished, the other group of liquid collecting cavities which are not sampled can rotate to the position corresponding to the liquid spraying hole, the top cover of the sampling tube is provided with a first sealing cover, the top of the first sealing cover is provided with a detection mechanism for detecting the pH value of sewage in the liquid collecting cavities, the buoyancy disc is provided with a moving mechanism for controlling the buoyancy disc to move on the surface of the sewage, and the inside of the liquid inlet hole is provided with a one-way valve.
In practical operation, the sampling tube can float in the sewage pool through the buoyancy disc, the buoyancy disc can move on the surface of the sewage under the action of the moving mechanism, when the buoyancy disc drives the sampling tube to move to a certain position, the sewage can be sampled through the liquid pumping assembly at the bottom of the sampling tube, the sampled sewage can enter the liquid collecting cavity in the rotating column for storage, when one group of liquid collecting cavities are filled with sewage samples, the rotating mechanism can drive the rotating column to rotate in the sampling tube, so that the other group of liquid collecting cavities move to the position corresponding to the liquid spraying hole, the liquid pumping assembly can sample the sewage again, the sampled sewage can enter the group of liquid collecting cavities corresponding to the liquid spraying hole for storage, the operation is repeated in such a way until all the liquid collecting cavities are filled with the sewage samples, the inside of the liquid inlet hole at the bottom of the liquid collecting cavity is provided with the one-way valve, sewage can enter the liquid collection cavity from the liquid inlet hole, and cannot flow out from the liquid inlet hole at the bottom of the liquid collection cavity, and the detection mechanism positioned at the top of the first sealing cover can detect the pH value of the sewage in the liquid collection cavity;
according to the invention, the sampling pipe floats on the surface of the sewage under the buoyancy action of the buoyancy disc, and the buoyancy disc can move on the surface of the sewage under the action of the moving mechanism, so that the buoyancy disc plays a role of a pleasure boat, the sampling pipe can be moved to a position needing sampling, the sampling of the sampling pipe is not limited by the area of a sewage pool, the sewage in the center of the sewage pool can be sampled, the sampling is more representative, and the sewage detection result is more representative;
meanwhile, the liquid collecting cavity is provided with a plurality of groups, sewage extracted by the liquid extracting assembly can sequentially enter the liquid collecting cavity in the rotating column to be collected, a plurality of groups of sewage samples can be taken at one time, and then the samples are simultaneously detected, so that the sampling time can be greatly saved.
Preferably, the liquid collecting cavity is provided with a plurality of groups, and the plurality of groups of liquid collecting cavities are annularly arranged at the top of the rotating column around the central axis of the rotating column at equal intervals.
Preferably, moving mechanism includes air pump, balancing piece, branch air cavity and fumarole, the inside of buoyancy dish is hollow structure, and is equipped with the air pump in the inside cavity of buoyancy dish, and the position department of buoyancy dish inside and air pump symmetry is equipped with carries out the balancing piece balanced with the buoyancy dish, set up branch air cavity in the lateral wall of buoyancy dish, the lateral wall edge of buoyancy dish is equipped with the fumarole of a plurality of groups and the inside intercommunication each other of branch air cavity, and the fumarole is located the surface of water top, and the inside of fumarole is equipped with the solenoid valve, and the outlet duct of air pump communicates each other with the inside in branch air cavity, the edge fixation of buoyancy dish is equipped with the haulage rope.
In actual operation, when the buoyancy disc is required to move towards one direction, the electromagnetic valve in the air jet hole opposite to the direction on the buoyancy disc can be opened, the air pump is started at the moment, air in the air pump enters the air distribution cavity and is then ejected out of the opened air jet hole, and due to the fact that the action of forces is mutual, the buoyancy disc can move towards one direction under the reaction force of the air ejected from the air jet hole, so that the buoyancy disc can move;
meanwhile, the moving distance of the buoyancy disc can be controlled by adjusting the amount of gas sprayed by the gas pump, and the buoyancy disc can be pulled back to the bank of the sewage pool by the arrangement of the traction rope;
the balance weight inside the buoyancy disc plays a role in balancing the weight of the air pump, and therefore the buoyancy disc is prevented from inclining inside the sewage pool.
Preferably, the drawing liquid subassembly is including fixed pipe, movable push rod, piston plate and drawing liquid passageway, fixed pipe is open-top's column groove structure, the top of fixed pipe and the bottom fixed connection of sampling tube, the inside slip of fixed pipe is equipped with the piston plate, the bottom of piston plate and the top fixed connection of movable push rod, and the bottom of fixed pipe is worn out to movable push rod's bottom, movable push rod's inside is equipped with the drawing liquid passageway that communicates each other with fixed intraduct, and the lower port inside of drawing liquid passageway is equipped with the check valve, and the inside in hydrojet hole is equipped with the check valve, connecting plate fixed connection is passed through with electric putter's free end to movable push rod's bottom and electric putter's fixed end, electric putter's stiff end and the bottom fixed connection of sampling tube, movable push rod's bottom is equipped with filtering component.
When the electric push rod drives the movable push rod to move downwards, the cavity in the fixed pipe is enlarged, sewage enters the fixed pipe from the lower port of the liquid pumping channel under the action of negative pressure, and when the electric push rod drives the movable push rod to move upwards, the piston plate at the top end of the movable push rod extrudes the sewage in the fixed pipe, and the sewage enters the liquid collecting cavity through the liquid spraying hole and the liquid inlet hole to be stored, so that the purpose of sampling is achieved;
the movable push rod of the invention gradually moves downwards in the sampling process, and further can sample sewage with different depths at one sampling point in the sewage pool, so that the obtained sewage sample is not limited on the surface of the sewage pool, and large particles in the sewage can be precipitated at a position close to the bottom end in the sewage pool, and further the movable push rod can obtain the sewage at a deeper position in the sewage pool while moving downwards in the sampling process, so that the sampling result is more representative, and the characteristic of the sewage can be more truly reflected.
Preferably, filtering component includes first filter screen, second filter screen, first articulated rod, second articulated rod and movable block, first filter screen is column cell body structure, and the bottom of activity push rod inlays the inside of establishing at first filter screen, the fixed flexible second filter screen that is equipped with in bottom of first filter screen, the second filter screen is spherical structural design, the fixed movable block that is equipped with in bottom edge inner wall of second filter screen, the edge of movable block and the one end activity hinge joint of first articulated rod, the other end of first articulated rod passes through the torsional spring and the one end activity hinge joint of second articulated rod, and the other end activity hinge joint of second articulated rod is in the bottom of first filter screen, the movable block is in the effect of dragging the mechanism to the direction removal that is close to first filter screen repeatedly, and the junction of first articulated rod and second articulated rod links firmly with the inner wall of second filter screen.
The during operation, first filter screen and second filter screen can be effectual impurity entering drawing liquid passageway's in the prevention sewage inside, and then avoid the large granule in the sewage to block up drawing liquid passageway, avoid influencing the sample, and the movable block removes to the direction that is close to first filter screen under the effect of dragging the mechanism repeatedly, the movable block is when being close to first filter screen, the second filter screen will be in the state of strutting, and when the movable block removes to the direction of keeping away from first filter screen, the second filter screen will present the state of long banding shrink, so reciprocal, the emergence shake that the second filter screen will relapse, can prevent impurity and large granule in the sewage from blockking up the mesh of second filter screen, also play the effect of stirring sewage simultaneously, make the sewage of this position department more even.
Preferably, the mechanism of dragging includes tooth group, winding roller, circular gear dish and accomodates the groove, accomodate the side that the groove is located the piston plate, the inside activity of accomodating the groove is equipped with the circular gear dish, and the fixed winding roller that is equipped with in the pivot of circular gear dish one end, the edge of winding roller and the one end fixed connection of stay cord, the other end of stay cord passes the inside drawing liquid passageway of movable push rod, and the inside that finally penetrates the second filter screen links firmly with the medial surface of movable block, the tooth at circular gear dish edge stretches out the outer port of accomodating the groove, and the inner wall of fixed pipe is equipped with the tooth group with circular gear dish intermeshing, and tooth group is from last equidistance linear arrangement that is down at the inner wall of fixed pipe, and a set of tooth group includes the meshing tooth that a plurality of groups arranged.
In actual operation, when the electric push rod drives the movable push rod to move up and down, the circular gear disc in the accommodating groove passes through the tooth groups uniformly distributed on the inner wall of the fixed pipe, when the circular gear disc passes through the surface of the tooth groups, the tooth groups are meshed with the circular gear disc to drive the circular gear disc to rotate, the circular gear disc drives the winding roller to rotate while rotating, the other end of the stay cord fixedly connected with the moving block is wound, one end of the stay cord close to the moving block drives the moving block to move towards the direction close to the first filter screen, when the circular gear disc moves to a position deviated from the tooth groups, the circular gear disc rotates towards the direction opposite to the original direction, the stay cord fixedly connected with the moving block is unwound from the surface edge of the winding roller, and the first hinge rod is movably hinged with the second hinge rod through the torsion spring, and then after becoming loose with the stay cord that the movable block linked firmly, the movable block will move to the direction of keeping away from first filter screen voluntarily.
Preferably, the rotating mechanism comprises a power box, a moving plate, a mounting groove and a shifting tooth, the power box is fixedly connected to the edge of the outer side wall of the sampling tube, the interior of the power box is communicated with the interior of the sampling tube, a movable plate is movably arranged in the power box, one side, facing the rotating column, of the movable plate is provided with a mounting groove, the interior of the mounting groove is movably hinged with a poking tooth through a torsion spring, one end of the movable plate is fixedly connected with the inner wall of the power box through an extension spring, the other end of the movable plate is fixedly connected with one end of a pull rope, the other end of the pull rope penetrates out of the bottom of the sampling tube and is fixedly connected with the surface of a connecting plate, the poking tooth is obliquely arranged in the mounting groove, and stir the tooth and incline towards the position that deviates from extension spring towards the one end of rotating the post, the edge of rotating the post evenly is equipped with and stirs tooth intermeshing's tooth.
In the actual operation of the invention, when the electric push rod drives the movable push rod to move downwards, sewage enters the inside of the fixed pipe for collection through the liquid pumping channel, simultaneously, the upper connecting plate of the electric push rod also drives the bottom end of the pull rope fixedly connected with the movable plate to move downwards, at the same time, the pull rope drives the movable plate to move, further, the poking teeth can poke the teeth at the edge of the rotating column so as to drive the rotating column to rotate, and when the poking teeth stop poking the teeth at the edge of the rotating column, the liquid collecting cavity on the rotating column is just at the position corresponding to the liquid spraying hole, at the same time, when the electric push rod drives the movable push rod to move upwards, the sewage in the fixed pipe enters the inside of the liquid collecting cavity through the liquid spraying hole and the liquid inlet hole under the pushing action of the piston plate for storage, and at the same time, the pull rope fixedly connected with the movable plate also becomes loose, the movable plate is gradually reset, and because the poking teeth are movably hinged in the mounting groove through the torsion spring, when the electric push rod drives the movable push rod to move upwards again, sewage enters the group of liquid collecting cavities, and the operation is repeated until the insides of all the liquid collecting cavities are filled with the sewage;
according to the invention, the rotating column is driven to rotate by the rotating mechanism, so that the liquid collecting cavities which are not filled with sewage on the rotating column are sequentially rotated to the positions corresponding to the liquid spraying holes, the interiors of a plurality of groups of liquid collecting cavities are sampled, the sampling bottles do not need to be manually replaced for multiple times in the whole process, the time and labor are saved, and the working efficiency can be greatly improved.
Preferably, one side of the moving plate, which is far away from the rotating column, is fixedly provided with a limiting slide block, and the limiting slide block is in sliding connection with a limiting slide groove in the inner wall of the power box.
Preferably, the detection mechanism comprises a second sealing cover, an insertion hole, a communication hole and an overflow plate, the second sealing cover is located above the first sealing cover, the bottom of the second sealing cover is fixedly connected with the top of the first sealing cover through a compression spring, the insertion hole is formed in the position, corresponding to the liquid collection cavity, of the top of the second sealing cover, bent pH test paper is inserted into the insertion hole, a spherical shell-shaped overflow plate which is recessed downwards is fixedly arranged at the upper end of the liquid collection cavity at the bottom of the first sealing cover, the overflow hole is formed in the edge of the bottom of the overflow plate, a one-way valve is arranged inside the overflow hole, the communication hole which is communicated with the inside of the overflow plate is formed in the first sealing cover, and an overflow mechanism which controls the sewage in the liquid collection cavity to overflow to the inside of the overflow plate is arranged on the first sealing cover and the rotating column.
When the pH value of a sample in the liquid collection cavity needs to be detected, the overflow mechanism enables water in the liquid collection cavity to enter the overflow plate corresponding to the overflow plate, then the second sealing cover is pressed downwards, the pH test paper in the insertion hole can penetrate through the communication hole in the first sealing cover to enter the overflow plate and dip a sewage sample in the overflow plate, then the second sealing cover is loosened, the second sealing cover can automatically move upwards under the action of a compression spring fixedly connected with the second sealing cover, the pH test paper is driven to be separated from the top of the first sealing cover, and the pH test paper can be checked after standing for a period of time, so that the pH value of the sample can be obtained;
when the second sealing cover is pressed downwards, all the pH test paper can be immersed into the sample in the corresponding overflow plate at the same time, and when the second sealing cover moves upwards, all the pH test paper can be separated from the interior of the sewage sample, so that the test of the pH values of a plurality of samples can be realized at one time, and the working efficiency is higher;
simultaneously because the inside in overflow hole is equipped with the check valve, and then the inside sewage of soaking overflow board will not mix with the inside sewage sample of collecting the liquid chamber once more, avoid the pH test paper to pollute the sewage sample, and then avoid influencing the subsequent detection project's of sewage accuracy, when carrying out the detection of the follow-up parameter of sewage sample, can open first sealed lid from the top of sampling pipe, the top in collecting the liquid chamber will be followed to the overflow board this moment breaks away from, can take out the inside sewage sample of collecting the liquid chamber through gluey head burette etc. and detect this moment, and convenient operation.
Preferably, the overflow mechanism comprises a spring compression pipe, an airflow channel, an L-shaped hollow pipe and a balloon, one end of a horizontal rod of the L-shaped hollow pipe is fixedly installed on the inner wall of the liquid collection cavity, the balloon is fixedly arranged on a vertical rod of the L-shaped hollow pipe, the inside of the balloon is communicated with the inside of the L-shaped hollow pipe, the spring compression pipe is fixedly arranged at the top of the first sealing cover, the top of the spring compression pipe is fixedly connected with the inner wall of the bottom of the second sealing cover, the airflow channel communicated with the inside of the L-shaped hollow pipe is arranged inside the rotating column, and a through hole used for communicating the airflow channel with the inside of the spring compression pipe is formed in the top of the first sealing cover.
Specifically, when the sealed lid of second received the pressure, the spring compression pipe will receive the extrusion, and the inside air of spring compression pipe will get into the inside of L shape hollow tube through airflow channel, and the inside that finally gets into the gasbag ball makes the gasbag ball take place the inflation, and the gasbag ball inflation will make the inside liquid level of collection liquid chamber rise, and then makes the inside sewage of collection liquid chamber get into the inside of overflow board through the overflow hole.
The invention has the technical effects and advantages that:
1. according to the invention, the sampling pipe floats on the surface of the sewage under the buoyancy action of the buoyancy disc, and the buoyancy disc can move on the surface of the sewage under the action of the moving mechanism, so that the buoyancy disc plays a role of a pleasure boat, the sampling pipe can be moved to a position needing sampling, the sampling of the sampling pipe is not limited by the area of the sewage pool, the sewage in the center of the sewage pool can be sampled, the sampling is more representative, and the sewage detection result is more representative;
2. the liquid collecting cavity is provided with a plurality of groups, sewage extracted by the liquid extracting assembly can sequentially enter the liquid collecting cavity in the rotating column for storage, a plurality of groups of sewage samples can be taken at one time, and then the samples are simultaneously detected, so that the sampling time can be greatly saved;
3. the movable push rod moves downwards gradually in the sampling process, so that sewage with different depths at one sampling point in the sewage tank can be sampled, the obtained sewage sample is not limited on the surface of the sewage tank, large particles in the sewage can be precipitated at the position close to the bottom end in the sewage tank, and the movable push rod can take the sewage at a deeper position in the sewage tank while moving downwards in the sampling process, so that the sampling result is more representative, and the characteristic of truly reflecting the sewage is achieved.
Drawings
Fig. 1 is an external structural view of the present invention.
Fig. 2 is a schematic view of the internal structure of the present invention.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2.
Fig. 4 is a schematic structural view of the rotating mechanism.
Fig. 5 is a schematic view of the filter assembly.
Fig. 6 is an enlarged schematic view of B in fig. 5.
Fig. 7 is a schematic structural view of the moving mechanism.
In the figure: 1. a sampling tube; 2. a first sealing cover; 3. a placing groove; 4. a buoyancy disc; 5. a second sealing cover; 6. pH test paper; 7. a rotating mechanism; 71. a power box; 72. a limiting slide block; 73. moving the plate; 74. mounting grooves; 75. the teeth are stirred; 76. a limiting chute; 8. a filter assembly; 81. a first filter screen; 82. a second filter screen; 83. a first hinge lever; 84. a second hinge lever; 85. a moving block; 9. a fluid extraction assembly; 91. fixing the tube; 92. a movable push rod; 93. a piston plate; 94. a fluid extraction channel; 10. an electric push rod; 11. a connecting plate; 12. an air pump; 13. a counterbalance; 14. inserting holes; 15. a communicating hole; 16. a spring compression tube; 17. an air flow channel; 18. rotating the column; 19. a liquid collection cavity; 20. an overflow plate; 21. an overflow hole; 22. an L-shaped hollow tube; 23. an air bag ball; 24. a gas distribution cavity; 25. a gas injection hole; 26. a set of teeth; 27. a winding roller; 28. a circular gear plate; 29. a receiving groove; 30. a liquid inlet hole; 31. and (4) liquid spraying holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a sewage detection device for environmental detection as shown in figures 1-7, which comprises a sampling tube 1, a buoyancy disc 4, a liquid pumping component 9 and a detection mechanism, wherein the middle part of the buoyancy disc 4 is provided with a placing groove 3, the sampling tube 1 is embedded inside the placing groove 3, a rubber pad is embedded inside the placing groove 3, the sampling tube 1 floats on the surface of sewage under the bearing action of the buoyancy disc 4, a rotating column 18 is arranged inside the sampling tube 1, the edge of the rotating column 18 is contacted with the inner wall of the sampling tube 1, the top of the rotating column 18 is provided with a plurality of groups of liquid collecting cavities 19 for containing sewage, the bottom of the liquid collecting cavities 19 is provided with liquid inlet holes 30, the liquid pumping component 9 is fixedly arranged at the eccentric position of the bottom of the sampling tube 1, the liquid pumping component 9 is communicated with liquid spraying holes 31 at the bottom of the sampling tube 1, the rotating column 18 is driven to rotate inside the sampling tube 1 by the rotation mechanism 7, and rotate the 18 pivoted in-process of post, the feed liquor hole 30 of liquid collecting cavity 19 bottom can coincide with the liquid spraying hole 31 of sampling tube 1 bottom, after the sample of each group of liquid collecting cavity 19 on the rotation post 18 is ended, another group of not-sampled liquid collecting cavity 19 will rotate to the position corresponding with liquid spraying hole 31, the top lid of sampling tube 1 is equipped with first sealed lid 2, the top of first sealed lid 2 is equipped with the detection mechanism who carries out pH value detection to the inside sewage in liquid collecting cavity 19, be equipped with the moving mechanism that control buoyancy disc 4 removed on the sewage surface on the buoyancy disc 4, the inside in feed liquor hole 30 is equipped with the check valve.
In practical operation, the sampling tube 1 can float in the sewage pool through the buoyancy disc 4, the buoyancy disc 4 can move on the surface of the sewage under the action of the moving mechanism, further, when the buoyancy disc 4 drives the sampling tube 1 to move to a certain position, the sewage can be sampled through the liquid pumping assembly 9 at the bottom of the sampling tube 1, the sampled sewage can enter the liquid collecting cavity 19 in the rotating column 18 to be stored, when one group of liquid collecting cavities 19 are internally provided with sewage samples, the rotating mechanism 7 can drive the rotating column 18 to rotate in the sampling tube 1, so that the other group of liquid collecting cavities 19 can move to the position corresponding to the liquid spraying hole 31, the liquid pumping assembly 9 can sample the sewage again, the sampled sewage can enter the group of liquid collecting cavities 19 corresponding to the liquid spraying hole 31 to be stored, and the steps are repeated until all the liquid collecting cavities 19 are internally provided with the sewage samples, a check valve is arranged in the liquid inlet hole 30 at the bottom of the liquid collecting cavity 19, so that sewage can enter the liquid collecting cavity 19 from the liquid inlet hole 30, the sewage cannot flow out from the liquid inlet hole 30 at the bottom of the liquid collecting cavity 19, and the detection mechanism at the top of the first sealing cover 2 can detect the pH value of the sewage in the liquid collecting cavity 19;
according to the invention, the sampling pipe 1 floats on the surface of the sewage under the buoyancy action of the buoyancy disc 4, and the buoyancy disc 4 can move on the surface of the sewage under the action of the moving mechanism, so that the buoyancy disc 4 plays a role of a 'cruise ship', the sampling pipe 1 can be moved to a position needing sampling, the sampling of the sampling pipe 1 is not limited by the area of the sewage pool, even the sewage in the center of the sewage pool can be sampled, the sampling is more representative, and the sewage detection result is more representative;
meanwhile, the liquid collecting cavity 19 is provided with a plurality of groups, sewage extracted by the liquid extracting assembly 9 can sequentially enter the liquid collecting cavity 19 in the rotating column 18 to be collected, a plurality of groups of sewage samples can be taken at one time, and then the samples are simultaneously detected, so that the sampling time can be greatly saved.
The liquid collecting cavities 19 are provided with a plurality of groups, and the groups of liquid collecting cavities 19 are annularly arranged at the top of the rotating column 18 around the central axis of the rotating column 18 at equal intervals.
Moving mechanism includes air pump 12, balancing piece 13, divide air cavity 24 and fumarole 25, the inside of buoyancy disc 4 is hollow structure, and be equipped with air pump 12 in the inside cavity of buoyancy disc 4, the inside position department of carrying out balance piece 13 balanced with buoyancy disc 4 that is equipped with of buoyancy disc 4 and 12 symmetries of air pump, branch air cavity 24 has been seted up in the lateral wall of buoyancy disc 4, the lateral wall edge of buoyancy disc 4 is equipped with the fumarole 25 of a plurality of groups and the inside intercommunication each other of branch air cavity 24, fumarole 25 is located the surface of water top, the inside of fumarole 25 is equipped with the solenoid valve, the outlet duct of air pump 12 communicates each other with the inside of branch air cavity 24, the edge mounting of buoyancy disc 4 is equipped with the haulage rope.
In actual operation, when the buoyancy disc 4 needs to move towards one direction, the electromagnetic valve in the air injection hole 25 opposite to the direction on the buoyancy disc 4 can be opened, the air pump 12 is started at the moment, air in the air pump 12 enters the air distribution cavity 24 and is injected out from the opened air injection hole 25, due to the mutual action of forces, the buoyancy disc 4 can move towards one direction under the reaction force of the air injected out from the air injection hole 25, and then the buoyancy disc 4 can move, and in actual use, the air injection hole 25 on the edge of the buoyancy disc 4 can be opened as required to move towards the direction opposite to the outer port of the air injection hole 25;
meanwhile, the moving distance of the buoyancy disc 4 can be controlled by adjusting the amount of gas sprayed out of the air pump 12, and the buoyancy disc 4 can be pulled back to the bank of the sewage pool by the arrangement of a traction rope;
the balance weight 13 inside the buoyancy disc 4 acts to balance the weight of the air pump 12 and thereby prevent the buoyancy disc 4 from tilting inside the sump.
Drawing liquid subassembly 9 includes fixed pipe 91, movable push rod 92, piston plate 93 and drawing liquid passageway 94, fixed pipe 91 is open-top's column groove structure, the top of fixed pipe 91 and the bottom fixed connection of sampling tube 1, the inside slip of fixed pipe 91 is equipped with piston plate 93, the bottom of piston plate 93 and movable push rod 92's top fixed connection, fixed pipe 91's bottom is worn out to movable push rod 92's bottom, movable push rod 92's inside is equipped with the drawing liquid passageway 94 with the inside mutual intercommunication of fixed pipe 91, the lower port inside of drawing liquid passageway 94 is equipped with the check valve, and the inside of hydrojet hole 31 is equipped with the check valve, movable push rod 92's bottom passes through connecting plate 11 fixed connection with electric putter 10's free end, electric putter 10's stiff end and sampling tube 1's bottom fixed connection, movable push rod 92's bottom is equipped with filtering component 8.
When the electric push rod 10 drives the movable push rod 92 to move downwards in practical use, at the moment, the cavity inside the fixed pipe 91 is enlarged, sewage enters the inside of the fixed pipe 91 from the lower port of the liquid pumping channel 94 under the action of negative pressure, and when the electric push rod 10 drives the movable push rod 92 to move upwards, the piston plate 93 at the top end of the movable push rod 92 extrudes the sewage inside the fixed pipe 91, and the sewage enters the liquid collection cavity 19 through the liquid spraying hole 31 and the liquid inlet hole 30 to be stored, so that the purpose of sampling is achieved;
the movable push rod 92 is gradually moved downwards in the sampling process, so that sewage with different depths at one sampling point in the sewage tank can be sampled, the obtained sewage sample is not limited on the surface of the sewage tank, large particles in the sewage can be precipitated at the position close to the bottom end in the sewage tank, and the movable push rod 92 can be moved downwards in the sampling process and can be used for obtaining the sewage at a deeper position in the sewage tank, so that the sampling result is more representative, and the characteristic of the sewage can be more truly reflected.
The filtering component 8 comprises a first filtering net 81, a second filtering net 82, a first hinging rod 83, a second hinging rod 84 and a moving block 85, the first filtering net 81 is of a cylindrical groove structure, the bottom end of the movable push rod 92 is embedded inside the first filter screen 81, the bottom of the first filter screen 81 is fixedly provided with a flexible second filter screen 82, the second filter screen 82 is designed to be a spherical structure, the inner wall of the bottom edge of the second filter screen 82 is fixedly provided with a movable block 85, the edge of the movable block 85 is movably hinged with one end of a first hinge rod 83, the other end of the first hinge rod 83 is movably hinged with one end of a second hinge rod 84 through a torsion spring, the other end of the second hinge rod 84 is movably hinged at the bottom of the first filter screen 81, the movable block 85 repeatedly moves towards the direction close to the first filter screen 81 under the action of a pulling mechanism, and the joint of the first hinge rod 83 and the second hinge rod 84 is fixedly connected with the inner wall of the second filter screen 82.
During operation, first filter screen 81 and second filter screen 82 can be effectual impurity in the prevention sewage get into the inside of drawing liquid passageway 94, and then avoid the large granule in the sewage to block up drawing liquid passageway 94, avoid influencing the sample, and moving block 85 removes to the direction that is close to first filter screen 81 under the effect of pulling the mechanism repeatedly, moving block 85 is when being close to first filter screen 81, second filter screen 82 will be in the state of strutting, and when moving block 85 removes to the direction of keeping away from first filter screen 81, second filter screen 82 will present the state of rectangular form shrink, so reciprocal, second filter screen 82 will relapse emergence shake, can prevent impurity and the large granule in the sewage from blockking up the mesh of second filter screen 82, also play the effect of stirring sewage simultaneously, make the sewage more even of this position department.
The pulling mechanism comprises a tooth group 26, a winding roller 27, a circular gear disc 28 and an accommodating groove 29, the accommodating groove 29 is located on the side face of the piston plate 93, the circular gear disc 28 is movably arranged inside the accommodating groove 29, the winding roller 27 is fixedly arranged on a rotating shaft at one end of the circular gear disc 28, the edge of the winding roller 27 is fixedly connected with one end of a pull rope, the other end of the pull rope penetrates through a liquid pumping channel 94 inside a movable push rod 92, the inner side face of the second filter screen 82 which finally penetrates through is fixedly connected with a moving block 85, teeth at the edge of the circular gear disc 28 extend out of an outer end opening of the accommodating groove 29, the inner wall of a fixed pipe 91 is provided with the tooth group 26 which is mutually meshed with the circular gear disc 28, the tooth group 26 is linearly arranged at equal intervals from top to bottom on the inner wall of the fixed pipe 91, and the tooth group 26 comprises a plurality of meshing teeth which are arranged at equal intervals.
In practical operation of the present invention, when the electric push rod 10 drives the movable push rod 92 to move up and down, the circular gear plate 28 inside the receiving groove 29 will pass through the teeth groups 26 uniformly distributed on the inner wall of the fixed tube 91, when the circular gear plate 28 passes through the surface of the teeth groups 26, the teeth groups 26 will engage with the circular gear plate 28 to drive the circular gear plate 28 to rotate, the circular gear plate 28 will drive the winding roller 27 to rotate while rotating, and the other end of the pulling rope fixedly connected with the moving block 85 will be wound, at this time, one end of the pulling rope close to the moving block 85 will drive the moving block 85 to move towards the direction close to the first filter screen 81, and when the circular gear plate 28 moves to a position deviating from the teeth groups 26, at this time, the circular gear plate 28 will rotate towards the original opposite direction, and further the pulling rope fixedly connected with the moving block 85 will unwind from the surface edge of the winding roller 27, because the first rod 83 is movably hinged with the second hinged rod 84 through the torsion spring, when the pull rope fixedly connected to the moving block 85 becomes loose, the moving block 85 will automatically move in a direction away from the first filter screen 81.
The rotating mechanism 7 comprises a power box 71, a moving plate 73, a mounting groove 74 and a poking tooth 75, the power box 71 is fixedly connected with the edge of the outer side wall of the sampling tube 1, the interior of the power box 71 is communicated with the interior of the sampling tube 1, a moving plate 73 is movably arranged in the power box 71, one side of the moving plate 73 facing the rotating column 18 is provided with a mounting groove 74, the interior of the mounting groove 74 is movably hinged with a poking tooth 75 through a torsion spring, one end of the moving plate 73 is fixedly connected with the inner wall of the power box 71 through an extension spring, the other end of the moving plate 73 is fixedly connected with one end of a pull rope, the other end of the pull rope penetrates through the bottom of the sampling tube 1 to be fixedly connected with the surface of the connecting plate 11, the poking tooth 75 is obliquely arranged in the mounting groove 74, and the end of the toggle teeth 75 facing the rotary column 18 is inclined towards the position away from the extension spring, and the edge of the rotary column 18 is uniformly provided with teeth which are engaged with the toggle teeth 75.
In practical operation of the present invention, when the electric push rod 10 drives the movable push rod 92 to move downwards, the sewage will enter the fixed tube 91 through the liquid pumping channel 94 for collection, and at the same time, the connecting plate 11 on the electric push rod 10 will also drive the bottom end of the pulling rope fixedly connected to the movable plate 73 to move downwards, and at this time, the pulling rope will drive the movable plate 73 to move, and the pulling tooth 75 will pull the teeth at the edge of the rotary column 18, and further drive the rotary column 18 to rotate, and when the pulling tooth 75 stops pulling the teeth at the edge of the rotary column 18, the liquid collecting cavity 19 on the rotary column 18 is just at the position corresponding to the liquid spraying hole 31, and at this time, when the electric push rod 10 drives the movable push rod 92 to move upwards, the sewage inside the fixed tube 91 will pass through the liquid spraying hole 31 and the liquid inlet hole 30 to enter the liquid collecting cavity 19 for storage under the pushing action of the piston plate 93, and at the same time, the pulling rope fixedly connected to the movable plate 73 will also become loose, the moving plate 73 is gradually reset, and the shifting teeth 75 are movably hinged inside the mounting groove 74 through the torsion spring, so that the moving plate 73 cannot drive the rotating column 18 to rotate in the resetting process, similarly, when the electric push rod 10 drives the movable push rod 92 to move downwards again, the shifting teeth 75 drive the rotating column 18 to rotate again, and the other group of liquid collecting cavities 19 are driven to rotate to the position corresponding to the liquid spraying hole 31, and when the electric push rod 10 drives the movable push rod 92 to move upwards again, sewage enters the group of liquid collecting cavities 19, and the operation is repeated until the insides of all the liquid collecting cavities 19 are filled with sewage;
according to the invention, the rotating mechanism 7 drives the rotating column 18 to rotate, so that the liquid collecting cavities 19 which are not filled with sewage on the rotating column 18 are sequentially rotated to the positions corresponding to the liquid spraying holes 31, and then the inside of a plurality of groups of liquid collecting cavities 19 is sampled, and the sampling bottles do not need to be manually replaced for multiple times in the whole process, so that more time and labor are saved, and the working efficiency can be greatly improved.
And a limiting slide block 72 is fixedly arranged on one surface of the moving plate 73, which is far away from the rotating column 18, and the limiting slide block 72 is mutually connected with a limiting slide groove 76 on the inner wall of the power box 71 in a sliding manner.
The detection mechanism comprises a second sealing cover 5 and an inserting hole 14, the device comprises a communicating hole 15 and an overflow plate 20, wherein the second sealing cover 5 is positioned above the first sealing cover 2, the bottom of the second sealing cover 5 is fixedly connected with the top of the first sealing cover 2 through a compression spring, an inserting hole 14 is formed in the position, corresponding to the liquid collecting cavity 19, of the top of the second sealing cover 5, a bent pH test paper 6 is inserted into the inserting hole 14, a spherical shell-shaped overflow plate 20 which is recessed downwards is fixedly arranged at the upper end of the liquid collecting cavity 19 at the bottom of the first sealing cover 2, an overflow hole 21 is formed in the bottom edge of the overflow plate 20, a one-way valve is arranged inside the overflow hole 21, the communicating hole 15 which is communicated with the inside of the overflow plate 20 is formed in the first sealing cover 2, and an overflow mechanism which controls the sewage in the liquid collecting cavity 19 to overflow to the inside of the overflow plate 20 is arranged on the first sealing cover 2 and the rotating column 18.
When the pH value of a sample in the liquid collection cavity 19 needs to be detected, the overflow mechanism enables water in the liquid collection cavity 19 to enter the overflow plate 20 corresponding to the water, then the second sealing cover 5 is pressed downwards, the pH test paper 6 in the insertion hole 14 passes through the communication hole 15 in the first sealing cover 2 to enter the overflow plate 20 and dip the sewage sample in the overflow plate 20, then the second sealing cover 5 is loosened, the second sealing cover 5 automatically moves upwards under the action of a compression spring fixedly connected with the second sealing cover 5, the pH test paper 6 is further driven to be separated from the top of the first sealing cover 2, and the pH test paper 6 can be detected after standing for a period of time, so that the pH value of the sample is obtained;
when the second sealing cover 5 is pressed downwards, all the pH test paper 6 can be immersed into the sample in the corresponding overflow plate 20, and when the second sealing cover 5 moves upwards, all the pH test paper 6 can be separated from the interior of the sewage sample, so that the test of the pH values of a plurality of samples can be realized at one time, and the working efficiency is higher;
simultaneously because the inside of overflow hole 21 is equipped with the check valve, and then the inside sewage of soaking overflow board 20 will not mix with the inside sewage sample of collecting liquid chamber 19 once more, avoid the pH test paper to pollute the sewage sample, and then avoid influencing the accuracy of the subsequent detection project of sewage, when carrying out the detection of the follow-up parameter of sewage sample, can open first sealed lid 2 from the top of sampling pipe 1, overflow board 20 will break away from the top of collecting liquid chamber 19 this moment, can take out the inside sewage sample of collecting liquid chamber 19 through rubber head burette etc. and detect this moment, and convenient operation.
Overflow mechanism includes spring compression pipe 16, airflow channel 17, L shape hollow tube 22 and gasbag ball 23, the one end fixed mounting of the horizontal bar of L shape hollow tube 22 is at the inner wall of liquid collecting cavity 19, fixed gasbag ball 23 that is equipped with on the vertical bar of L shape hollow tube 22, the inside of gasbag ball 23 communicates with each other with L shape hollow tube 22's inside, the fixed spring compression pipe 16 that is equipped with in top of first sealed lid 2, the top of spring compression pipe 16 links firmly with the bottom inner wall of the sealed lid 5 of second, the inside of rotating column 18 is equipped with the airflow channel 17 that communicates with the inside each other of L shape hollow tube 22, the top of first sealed lid 2 is offered and is used for communicating airflow channel 17 and the inside through-hole of spring compression pipe 16.
Specifically, when the second sealing cover 5 is pressed, the spring compression pipe 16 is extruded, the air inside the spring compression pipe 16 enters the inside of the L-shaped hollow pipe 22 through the airflow channel 17, and finally enters the inside of the air bag ball 23 to expand the air bag ball 23, so that the liquid level inside the liquid collection cavity 19 rises due to the expansion of the air bag ball 23, and further the sewage inside the liquid collection cavity 19 enters the inside of the overflow plate 20 through the overflow hole 21.
The working principle is as follows: in practical operation, the sampling tube 1 can float in the sewage pool through the buoyancy disc 4, the buoyancy disc 4 can move on the surface of the sewage under the action of the moving mechanism, further, when the buoyancy disc 4 drives the sampling tube 1 to move to a certain position, the sewage can be sampled through the liquid pumping assembly 9 at the bottom of the sampling tube 1, the sampled sewage can enter the liquid collecting cavity 19 in the rotating column 18 to be stored, when one group of liquid collecting cavities 19 are internally provided with sewage samples, the rotating mechanism 7 can drive the rotating column 18 to rotate in the sampling tube 1, so that the other group of liquid collecting cavities 19 can move to the position corresponding to the liquid spraying hole 31, the liquid pumping assembly 9 can sample the sewage again, the sampled sewage can enter the group of liquid collecting cavities 19 corresponding to the liquid spraying hole 31 to be stored, and the steps are repeated until all the liquid collecting cavities 19 are internally provided with the sewage samples, a check valve is arranged in the liquid inlet hole 30 at the bottom of the liquid collecting cavity 19, so that sewage can enter the liquid collecting cavity 19 from the liquid inlet hole 30, the sewage cannot flow out from the liquid inlet hole 30 at the bottom of the liquid collecting cavity 19, and the detection mechanism at the top of the first sealing cover 2 can detect the pH value of the sewage in the liquid collecting cavity 19;
according to the invention, the sampling pipe 1 floats on the surface of the sewage under the buoyancy action of the buoyancy disc 4, and the buoyancy disc 4 can move on the surface of the sewage under the action of the moving mechanism, so that the buoyancy disc 4 plays a role of a 'cruise ship', the sampling pipe 1 can be moved to a position needing sampling, the sampling of the sampling pipe 1 is not limited by the area of the sewage pool, even the sewage in the center of the sewage pool can be sampled, the sampling is more representative, and the sewage detection result is more representative;
meanwhile, the liquid collecting cavity 19 is provided with a plurality of groups, sewage extracted by the liquid extracting assembly 9 can sequentially enter the liquid collecting cavity 19 in the rotating column 18 to be collected, a plurality of groups of sewage samples can be taken at one time, and then the samples are simultaneously detected, so that the sampling time can be greatly saved.
Claims (10)
1. The utility model provides a sewage detection device that environmental detection used, includes sampling tube (1), buoyancy dish (4), drawing liquid subassembly (9) and detection mechanism, its characterized in that: the middle part of the buoyancy disc (4) is provided with a placing groove (3), the sampling tube (1) is embedded in the placing groove (3), a rubber pad is embedded in the placing groove (3), the sampling tube (1) floats on the surface of sewage under the bearing action of the buoyancy disc (4), the interior of the sampling tube (1) is provided with a rotating column (18), the edge of the rotating column (18) is contacted with the inner wall of the sampling tube (1), the top of the rotating column (18) is provided with a plurality of groups of liquid collecting cavities (19) for containing sewage, the bottom of the liquid collecting cavities (19) is provided with liquid inlet holes (30), the eccentric position of the bottom of the sampling tube (1) is fixedly provided with a liquid pumping component (9), the liquid pumping component (9) is mutually communicated with liquid spraying holes (31) at the bottom of the sampling tube (1), the rotating column (18) is driven by a rotating mechanism (7) to rotate in the interior of the sampling tube (1), and rotate the pivoted in-process of post (18), feed liquor hole (30) of liquid collecting cavity (19) bottom can coincide with the liquid spraying hole (31) of sampling tube (1) bottom, after each group of liquid collecting cavity (19) on rotation post (18) were sampled, another group of liquid collecting cavity (19) of not sampling will rotate to the position corresponding with liquid spraying hole (31), the top lid of sampling tube (1) is equipped with first sealed lid (2), and the top of first sealed lid (2) is equipped with the detection mechanism who carries out pH value detection to the inside sewage of liquid collecting cavity (19), be equipped with the moving mechanism that control buoyancy dish (4) removed on the sewage surface on buoyancy dish (4), the inside of feed liquor hole (30) is equipped with the check valve.
2. The sewage detection device for environmental detection according to claim 1, wherein: the liquid collecting cavities (19) are provided with a plurality of groups, and the liquid collecting cavities (19) of the groups are annularly arranged at the top of the rotating column (18) around the central axis of the rotating column (18) at equal intervals.
3. The apparatus for detecting contaminated water for environmental monitoring according to claim 2, further comprising: moving mechanism includes air pump (12), balancing piece (13), branch air cavity (24) and fumarole (25), the inside of buoyancy dish (4) is hollow structure, and is equipped with air pump (12) in the inside cavity of buoyancy dish (4), and the position department of buoyancy dish (4) inside and air pump (12) symmetry is equipped with and carries out balancing piece (13) balanced with buoyancy dish (4), branch air cavity (24) have been seted up in the lateral wall of buoyancy dish (4), and the lateral wall edge of buoyancy dish (4) is equipped with fumarole (25) that a plurality of groups and branch air cavity (24) are inside to communicate each other, and fumarole (25) are located the surface of water top, and the inside of fumarole (25) is equipped with the solenoid valve, and the outlet duct of air pump (12) communicates with the inside of branch air cavity (24) each other, the edge fixation of buoyancy dish (4) is equipped with the haulage rope.
4. The apparatus for detecting contaminated water for environmental testing according to claim 3, wherein: the liquid pumping assembly (9) comprises a fixed pipe (91), a movable push rod (92), a piston plate (93) and a liquid pumping channel (94), wherein the fixed pipe (91) is of a cylindrical groove body structure with an open top, the top of the fixed pipe (91) is fixedly connected with the bottom of the sampling pipe (1), the piston plate (93) is arranged in the fixed pipe (91) in a sliding manner, the bottom of the piston plate (93) is fixedly connected with the top end of the movable push rod (92), the bottom end of the movable push rod (92) penetrates out of the bottom of the fixed pipe (91), the liquid pumping channel (94) which is mutually communicated with the inside of the fixed pipe (91) is arranged in the movable push rod (92), a check valve is arranged in the lower port of the liquid pumping channel (94), the check valve is arranged in the liquid spraying hole (31), the bottom end of the movable push rod (92) is fixedly connected with the free end of the electric push rod (10) through a connecting plate (11), the fixed end of electric putter (10) and the bottom fixed connection of sampling tube (1), the bottom of activity push rod (92) is equipped with filtering component (8).
5. The sewage detection device for environmental detection according to claim 4, wherein: the filter component (8) comprises a first filter screen (81), a second filter screen (82), a first hinged rod (83), a second hinged rod (84) and a moving block (85), the first filter screen (81) is of a cylindrical groove structure, the bottom end of a movable push rod (92) is embedded in the first filter screen (81), the bottom of the first filter screen (81) is fixedly provided with the flexible second filter screen (82), the second filter screen (82) is of a spherical structure design, the inner wall of the bottom edge of the second filter screen (82) is fixedly provided with the moving block (85), the edge of the moving block (85) is movably hinged with one end of the first hinged rod (83), the other end of the first hinged rod (83) is movably hinged with one end of the second hinged rod (84) through a torsion spring, the other end of the second hinged rod (84) is movably hinged with the bottom of the first filter screen (81), and the moving block (85) repeatedly moves towards the direction close to the first filter screen (81) under the action of a pulling mechanism, and the joint of the first hinged rod (83) and the second hinged rod (84) is fixedly connected with the inner wall of the second filter screen (82).
6. The sewage detection device for environmental detection according to claim 5, wherein: the pulling mechanism comprises a tooth group (26), a winding roller (27), a circular gear disc (28) and a containing groove (29), the containing groove (29) is positioned on the side surface of the piston plate (93), the circular gear disc (28) is movably arranged inside the containing groove (29), the winding roller (27) is fixedly arranged on a rotating shaft at one end of the circular gear disc (28), the edge of the winding roller (27) is fixedly connected with one end of a pull rope, the other end of the pull rope penetrates through a liquid pumping channel (94) inside a movable push rod (92), the inner side of a second filter screen (82) which finally penetrates into is fixedly connected with the inner side of a moving block (85), teeth at the edge of the circular gear disc (28) extend out of an outer end opening of the containing groove (29), the inner wall of the fixed pipe (91) is provided with the tooth group (26) which is mutually meshed with the circular gear disc (28), and the tooth group (26) is linearly arranged on the inner wall of the fixed pipe (91) at equal intervals from top to bottom, a set of teeth (26) includes a plurality of sets of equally spaced sets of mating teeth.
7. The sewage detection device for environmental detection according to claim 6, wherein: the rotating mechanism (7) comprises a power box (71), a moving plate (73), a mounting groove (74) and shifting teeth (75), the power box (71) is fixedly connected to the edge of the outer side wall of the sampling tube (1), the interior of the power box (71) is communicated with the interior of the sampling tube (1), the moving plate (73) is movably arranged in the power box (71), the mounting groove (74) is formed in the moving plate (73) facing one side of the rotating column (18), the shifting teeth (75) are movably hinged in the mounting groove (74) through a torsion spring, one end of the moving plate (73) is fixedly connected with the inner wall of the power box (71) through a tension spring, the other end of the moving plate (73) is fixedly connected with one end of a pull rope, the other end of the pull rope penetrates out of the bottom of the sampling tube (1) and is fixedly connected with the surface of the connecting plate (11), the shifting teeth (75) are obliquely arranged in the mounting groove (74), and the poking teeth (75) face to the position where one end of the rotating column (18) inclines and faces away from the extension spring, and the edges of the rotating column (18) are uniformly provided with teeth which are meshed with the poking teeth (75).
8. The apparatus for detecting contaminated water for environmental testing according to claim 7, wherein: and one surface of the moving plate (73) departing from the rotating column (18) is fixedly provided with a limiting slide block (72), and the limiting slide block (72) is mutually connected with a limiting slide groove (76) on the inner wall of the power box (71) in a sliding manner.
9. The apparatus for detecting contaminated water for environmental testing according to claim 8, wherein: the detection mechanism comprises a second sealing cover (5), an inserting hole (14), a communicating hole (15) and an overflow plate (20), wherein the second sealing cover (5) is positioned above the first sealing cover (2), the bottom of the second sealing cover (5) is fixedly connected with the top of the first sealing cover (2) through a compression spring, the inserting hole (14) is formed in the position, corresponding to the liquid collecting cavity (19), of the top of the second sealing cover (5), a bent pH test paper (6) is inserted into the inserting hole (14), the downwards-recessed spherical shell-shaped overflow plate (20) is fixedly arranged at the upper port of the liquid collecting cavity (19) at the bottom of the first sealing cover (2), the overflow hole (21) is formed in the bottom edge of the overflow plate (20), a one-way valve is arranged inside the overflow hole (21), the communicating hole (15) communicated with the inside of the overflow plate (20) is formed in the first sealing cover (2), and the first sealing cover (2) and the rotating column (18) are provided with overflow mechanisms for controlling sewage in the liquid collecting cavity (19) to overflow to the overflow plate (20).
10. The apparatus for detecting contaminated water for environmental testing according to claim 9, wherein: the overflow mechanism comprises a spring compression pipe (16), an airflow channel (17), an L-shaped hollow pipe (22) and an air bag ball (23), one end of a horizontal rod of the L-shaped hollow pipe (22) is fixedly installed on the inner wall of a liquid collecting cavity (19), the air bag ball (23) is fixedly arranged on a vertical rod of the L-shaped hollow pipe (22), the interior of the air bag ball (23) is communicated with the interior of the L-shaped hollow pipe (22), the spring compression pipe (16) is fixedly arranged at the top of a first sealing cover (2), the top of the spring compression pipe (16) is fixedly connected with the inner wall of the bottom of a second sealing cover (5), the airflow channel (17) communicated with the interior of the L-shaped hollow pipe (22) is arranged in a rotating column (18), and a through hole used for communicating the airflow channel (17) with the interior of the spring compression pipe (16) is formed in the top of the first sealing cover (2).
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