An environmentally friendly stratified sampling and testing device for water quality in wastewater treatment

Abstract

The present invention relates to the technical field of wastewater treatment, and specifically to an environmentally friendly wastewater treatment water quality stratified sampling and detection device, comprising a body, a descending head and a collecting mechanism, wherein the lower end of the body is fixedly mounted with a descending head, the top of the descending head is provided with a collecting mechanism, and an adjusting mechanism is installed inside the collecting mechanism. The present invention uses an adjusting mechanism, a sliding mechanism, an elastic mechanism and a hydraulic mechanism to allow the collecting mechanism to be suspended in the river channel through a working motor when water quality detection is performed in different intervals. When the collecting mechanism passes through a certain water pressure in the water, the water pressure penetrates through an infiltration groove inside the hydraulic tank, and when the water pressure reaches a certain level, pressure is applied to the adjusting plate, which facilitates increasing the collection efficiency of water quality in different intervals, and effectively reduces the influence of shallow water on deep water, preventing the detection accuracy from being affected after collection.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to an environmentally friendly wastewater treatment water quality stratified sampling and detection device. Background Art

[0002] Wastewater treatment is a technology that uses physical, chemical and biological methods to treat wastewater to purify it, reduce pollution, and achieve wastewater recovery and reuse, and make full use of water resources. Common agents for wastewater treatment include flocculants, coagulants, conditioners, etc. Treatment technologies include pretreatment, new fillers, ceramic membranes, etc., and wastewater treatment methods that separate and recover insoluble suspended pollutants in wastewater through physical action can be divided into gravity separation, centrifugal separation, screening and interception methods, etc. Treatment methods based on the principle of heat exchange are also physical treatment methods. Currently, when treating wastewater, it is necessary to sample deep and shallow water in the river.

[0003] Currently, when conducting water quality testing in rivers, it is necessary to use a water quality sampling device to sample the water quality in the river. However, the current sampling device is unable to sample the water quality in different sections of the river, and it is easy to cause mixing of water quality in different sections after sampling, which affects the accuracy of the test after sampling, making it impossible to sample and test deep and shallow water quality, thereby affecting the efficiency of water quality testing and the success rate of sampling.

[0004] In view of the above problems in the prior art, it is urgently necessary to propose an environmentally friendly wastewater treatment water quality stratified sampling and detection device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide an environmentally friendly wastewater treatment water quality stratified sampling and detection device to solve the problem mentioned in the above background technology that the existing water quality sampling device cannot sample water quality in different intervals and easily causes mixing of water quality in different intervals after sampling.

[0006] To achieve the above object, the present invention provides the following technical solution: an environmentally friendly wastewater treatment water quality stratified sampling and detection device, comprising:

[0007] A machine body, a descending head and a collecting mechanism, wherein the lower end of the machine body is fixedly mounted with the descending head, the top end of the descending head is provided with a collecting mechanism, an adjusting mechanism is installed inside the collecting mechanism, a sliding mechanism is provided on the outer surface of the adjusting mechanism, an elastic mechanism is provided inside the adjusting mechanism, a second mounting plate is connected to the outer surface of the upper end of the collecting mechanism, a connecting belt is hingedly connected to the outer surface of the top end of the second mounting plate, a placing plate is connected to the top end of the connecting belt, and a working motor is fixedly mounted on the outer surface of the placing plate;

[0008] A hydraulic mechanism, a hydraulic mechanism is fixedly installed on the top of the collecting mechanism, the hydraulic mechanism includes an infiltration groove, the infiltration groove is arranged inside the collecting mechanism, a hydraulic chamber is arranged below the infiltration groove, an adjusting plate is installed inside the hydraulic chamber, a hydraulic expansion spring is fixedly connected to the outer surface of the bottom end of the adjusting plate, an adjusting column is welded to the bottom end surface of the adjusting plate, a first mounting plate is fixedly connected to the outer surface of the bottom end of the hydraulic expansion spring, the adjusting plate is slidably and telescopically connected inside the hydraulic chamber, the inner wall of the hydraulic chamber is a cylindrical steel plate with a smooth structure, the hydraulic expansion spring is fixedly installed on the outer surface of the first mounting plate by screws, the adjusting plate is movably connected to the first mounting plate by the hydraulic expansion spring, the adjusting column is inserted through the inside of the first mounting plate, four groups of hydraulic expansion springs are provided, and the bottom end of the adjusting column is fixedly connected to the inside of the collecting mechanism.

[0009] Preferably, the collecting mechanism includes a movable bin, which is fixedly mounted on the outer surface of the bottom end of the second mounting plate, a connecting column is inserted into the interior of the movable bin, a first connecting rod is welded to the bottom end of the connecting column, an adjusting tube is fixedly connected to the outer surface of the bottom end of the first connecting rod, and a cam rod is sleeved on the outer surface of the adjusting tube.

[0010] Preferably, the top end of the connecting column is fixedly connected to the outer surface of the adjusting column, the outer surface of the adjusting tube is a smooth structural cylindrical steel tube, the adjusting tube is welded to the outer surface of the first connecting rod, the adjusting tube is connected to the bottom end of the connecting column through the first connecting rod, the adjusting tube is rotatably connected inside the cam rod, and the cam rod is fixedly mounted on the outer surface of the adjusting mechanism by screws.

[0011] Preferably, the regulating mechanism includes a water quality collecting bin, which is arranged inside the collecting mechanism, a rotating shaft is installed on the outer surface of the water quality collecting bin, a fixing rod is welded on the outer surface of the rotating shaft, and the top end of the fixing rod is fixedly connected to a limiting plate.

[0012] Preferably, the fixing rod is welded to the outer surface of the rotating shaft, four groups of the fixing rod are provided, the limiting plate is fixedly mounted on the outer surface of the fixing rod by screws, and the outer surface of the limiting plate is a curved steel plate with a smooth structure.

[0013] Preferably, the sliding mechanism comprises a limit block, the limit block is arranged inside the adjustment mechanism, the bottom end of the limit block is fixedly connected with a snap-fit ​​seat, the outer surface of the snap-fit ​​seat is snap-fitted with a sliding seat, and the outer surface of the sliding seat is provided with a sliding groove.

[0014] Preferably, the sliding groove is provided on the outer surface of the sliding seat, the sliding seat is slidably connected to the sliding groove, and the snap-fit ​​seat is snap-fitted and installed on the outside of the sliding seat.

[0015] Preferably, the elastic mechanism includes a fixed plate, which is arranged inside the adjusting mechanism, and an elastic spring is fixedly installed on the outer surface of one side of the fixed plate, the bottom end of the elastic spring is fixedly connected to a second connecting rod, and the bottom end outer surface of the second connecting rod is fixedly connected to the connecting plate.

[0016] Preferably, the elastic spring is fixed on the outer surface of the fixed plate by screws, the second connecting rod is welded to the outer surface of the elastic spring, the connecting plate is movably connected to the elastic spring through the second connecting rod, and one side of the connecting plate is fixedly connected to the outer surface of the limit block.

[0017] Preferably, the collecting mechanism is provided with three groups, the outer surface of the descending head is a conical structure, the outer surface of the connecting belt is a rubber belt with a smooth structure, and the connecting belt is connected to the outer surface of the second mounting plate through a hinge seat.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] By setting the adjusting mechanism, sliding mechanism, elastic mechanism and water pressure mechanism, when conducting water quality inspection in different intervals, the collecting mechanism is suspended in the river channel through the working motor. When the collecting mechanism passes through a certain water pressure in the water, the water pressure penetrates through the penetration groove in the water pressure chamber. When the water pressure reaches a certain level, pressure is applied to the adjusting plate, so that the adjusting plate is extended and retracted in the water pressure chamber through the water pressure expansion spring. Therefore, the adjusting column presses down the adjusting tube after descending. Therefore, the adjusting tube rotates and adjusts the cam rod after rotating with the cam rod. Then, the adjusting mechanism rotates after being connected with the cam rod. At this time, after the rotating shaft rotates, the limiting plate is separated from the limit of the sliding mechanism. Through the elastic expansion of the elastic mechanism, the limiting plate is retracted and retracted. The water pressure spring is used to retract the limit block so that the limit block can slide on the outer surface of the sliding groove and rebound the limit block to the inside of the water collection bin, so that the water can be collected through the pores after the limit block is expanded and contracted. When the collecting mechanism is retracted after being suspended, the water pressure in the water pressure bin is reduced, so that the adjusting plate can be elastically contracted through the water pressure expansion spring, and the adjusting column can be raised, thereby controlling the rotation of the fixed rod and re-limiting the limit block to prevent the infiltration and collection of shallow water. The different water pressures in the water pressure bin can be controlled through water pressure expansion springs with different elastic strengths, so that the water quality in different river sections can be collected through water pressures of different depths, which facilitates the increase of the collection efficiency of water quality in different sections and effectively reduces the influence of shallow water on deep water, thus preventing the accuracy of detection after collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 For the present invention Figure 1The overall structural diagram of the collection mechanism;

[0022] Figure 3 For the present invention Figure 2 The overall structural diagram of the medium water pressure mechanism;

[0023] Figure 4 For the present invention Figure 2 A schematic top view of the structure of the middle adjustment mechanism;

[0024] Figure 5 For the present invention Figure 4 The overall structural diagram of the middle sliding mechanism;

[0025] Figure 6 For the present invention Figure 4 A schematic diagram of the enlarged structure at point A in the middle.

[0026] In the figure: 1. body; 2. descending head; 3. collecting mechanism; 301. movable bin; 302. connecting column; 303. first connecting rod; 304. adjusting tube; 305. cam rod; 4. hydraulic mechanism; 401. infiltration groove; 402. hydraulic bin; 403. adjusting plate; 404. hydraulic telescopic spring; 405. first mounting plate; 406. adjusting column; 5. adjusting mechanism; 501. water quality collecting bin; 502. rotating shaft; 503. fixing rod; 504. limiting plate; 6. sliding mechanism; 601. limiting block; 602. snap-fit ​​seat; 603. sliding seat; 604. sliding groove; 7. elastic mechanism; 701. fixing plate; 702. elastic spring; 703. second connecting rod; 704. connecting plate; 8. second mounting plate; 9. connecting belt; 10. placing plate; 11. working motor. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-6 , an embodiment provided by the present invention:

[0029] An environmentally friendly wastewater treatment water quality stratified sampling and detection device, comprising:

[0030] A machine body 1, a descending head 2 and a collecting mechanism 3, wherein the descending head 2 is fixedly mounted on the bottom end of the machine body 1, the collecting mechanism 3 is arranged on the top end of the descending head 2, an adjusting mechanism 5 is arranged inside the collecting mechanism 3, a sliding mechanism 6 is arranged on the outer surface of the adjusting mechanism 5, an elastic mechanism 7 is arranged inside the adjusting mechanism 5, a second mounting plate 8 is connected to the outer surface of the top end of the collecting mechanism 3, a connecting belt 9 is hingedly connected to the outer surface of the top end of the second mounting plate 8, a placing plate 10 is connected to the top end of the connecting belt 9, and a working motor 11 is fixedly mounted on the outer surface of the placing plate 10;

[0031] The hydraulic mechanism 4 is fixedly installed on the top of the collecting mechanism 3. The hydraulic mechanism 4 includes an infiltration groove 401, which is arranged inside the collecting mechanism 3. A hydraulic chamber 402 is arranged below the infiltration groove 401. An adjusting plate 403 is installed inside the hydraulic chamber 402. A hydraulic expansion spring 404 is fixedly connected to the outer surface of the bottom end of the adjusting plate 403. An adjusting column 406 is welded to the bottom end surface of the adjusting plate 403. A first mounting plate 405 is fixedly connected to the outer surface of the bottom end of the hydraulic expansion spring 404. The adjusting plate 403 is slidably and telescopically connected inside the hydraulic chamber 402. The inner wall of the hydraulic chamber 402 is a cylindrical steel plate with a smooth structure. The hydraulic expansion spring 404 is screwed in place. The adjusting plate 403 is fixedly mounted on the outer surface of the first mounting plate 405 and is movably connected to the first mounting plate 405 through a water pressure expansion spring 404. The adjusting column 406 is inserted through the first mounting plate 405. Four groups of water pressure expansion springs 404 are provided. The bottom end of the adjusting column 406 is fixedly connected to the inside of the collecting mechanism 3. When water penetrates into the inside of the infiltration groove 401 and the water pressure is too high, the water pressure expansion spring 404 is pressed by the adjusting plate 403, so that when the machine body 1 descends to a certain depth, the water pressure expansion spring 404 breaks through the water pressure limitation and performs expansion and contraction adjustment activities, so that the adjusting column 406 performs expansion and contraction adjustment on the height of the connecting column 302 after descending.

[0032] The collecting mechanism 3 includes a movable bin 301, which is fixedly mounted on the outer surface of the bottom end of the second mounting plate 8. A connecting column 302 is inserted into the movable bin 301. A first connecting rod 303 is welded to the bottom end of the connecting column 302. An adjusting tube 304 is fixedly connected to the outer surface of the bottom end of the first connecting rod 303. A cam rod 305 is sleeved on the outer surface of the adjusting tube 304. The top of the connecting column 302 is fixedly connected to the outer surface of the adjusting column 406. The outer surface of the adjusting tube 304 is a smooth cylindrical steel tube. The adjusting tube 304 is welded to the first connecting rod 303. The outer surface of the connecting rod 303, the adjusting tube 304 is connected to the bottom end of the connecting column 302 through the first connecting rod 303, the adjusting tube 304 is rotatably connected inside the cam rod 305, and the cam rod 305 is fixedly installed on the outer surface of the adjusting mechanism 5 by screws. When the connecting column 302 is lowered, the adjusting tube 304 is connected to the first connecting rod 303 through the connection of the first connecting rod 303 to perform a height lifting operation, so that when the adjusting tube 304 is adjusted inside the cam rod 305, the adjusting mechanism 5 can be rotationally controlled.

[0033] The regulating mechanism 5 includes a water quality collecting chamber 501, which is arranged inside the collecting mechanism 3. A rotating shaft 502 is installed on the outer surface of the water quality collecting chamber 501. A fixing rod 503 is welded on the outer surface of the rotating shaft 502. The top of the fixing rod 503 is fixedly connected to a limiting plate 504. The fixing rod 503 is welded to the outer surface of the rotating shaft 502. The fixing rod 503 is provided with four groups. The limiting plate 504 is fixedly installed on the outer surface of the fixing rod 503 by screws. The outer surface of the limiting plate 504 is a smooth arc-shaped steel plate. The sliding mechanism 6 includes a limiting block 601, which is arranged inside the regulating mechanism 5. The bottom end of the limiting block 601 is fixedly connected to a buckle seat 602. The outer surface of the buckle seat 602 is buckled with The sliding seat 603 has a sliding groove 604 on its outer surface, and the sliding groove 604 is provided on the outer surface of the sliding seat 603. The sliding seat 603 is slidably connected to the sliding groove 604, and the snap-fit ​​seat 602 is snap-fitted and installed on the outside of the sliding seat 603. When the rotating shaft 502 is connected and rotated with the cam rod 305, the fixed rod 503 can be rotated and adjusted, so that the limiting plate 504 makes the sliding mechanism 6 disengage from the limiting position of the limiting plate 504 after rotation. At this time, through the setting of the elastic mechanism 7, the limiting block 601 is elastically contracted on the outer surface of the sliding groove 604 through the snap-fit ​​seat 602, so that the limiting block 601 collects water through the gap between the limiting block 601 and the outer surface of the water collection bin 501 after contraction.

[0034] The elastic mechanism 7 includes a fixing plate 701, which is arranged inside the adjusting mechanism 5. An elastic spring 702 is fixedly installed on the outer surface of one side of the fixing plate 701. The bottom end of the elastic spring 702 is fixedly connected to a second connecting rod 703. The bottom end outer surface of the second connecting rod 703 is fixedly connected to a connecting plate 704. The elastic spring 702 is fixedly installed on the outer surface of the fixing plate 701 by screws. The second connecting rod 703 is welded to the outer surface of the elastic spring 702. The connecting plate 704 is connected to the elastic spring 702 by the second connecting rod 703. The force spring 702 is movably connected, one side of the connecting plate 704 is fixedly connected to the outer surface of the limit block 601, and the collecting mechanism 3 is provided with three groups. The outer surface of the descending head 2 is a conical structure, and the outer surface of the connecting belt 9 is a rubber belt with a smooth structure. The connecting belt 9 is connected to the outer surface of the second mounting plate 8 through a hinge seat. Through the elastic expansion and contraction of the connecting plate 704 and the elastic spring 702, the limit block 601 can be elastically expanded and contracted after being connected to the connecting plate 704, so as to facilitate the water collection of the limit block 601 after contraction.

[0035] Working principle: When it is necessary to collect different water quality layers in the river, the collecting mechanism 3 is placed in the river water through the working motor 11. When the collecting mechanism 3 sinks into the deep water of the river, the water is allowed to penetrate through the infiltration groove 401 inside the water pressure chamber 402. When the water pressure is too high, the water pressure expansion spring 404 is pressed through the adjusting plate 403, so that when the body 1 descends to a certain depth, the water pressure expansion spring 404 breaks through the water pressure limit and performs expansion and contraction adjustment activities, so that the adjusting column 406 adjusts the height of the connecting column 302 after descending, and then the adjusting tube 304 is connected to the first connecting rod 303 through the connection to perform a height lifting and lowering operation, so that when the adjusting tube 304 is adjusted inside the cam rod 305, the rotation of the rotating shaft 502 can be controlled.

[0036] Furthermore, after the rotating shaft 502 is connected and rotated with the cam rod 305, it can rotate and adjust the fixed rod 503, so that the limit plate 504 makes the sliding mechanism 6 disengage from the limit with the limit plate 504 after rotation. At this time, through the elastic expansion and contraction of the connecting plate 704 and the elastic spring 702, the limit block 601 can be elastically expanded and contracted after being connected with the connecting plate 704, so that the limit block 601 can collect water through the pores on the outer surface of the limit block 601 and the water collection chamber 501 after contraction, so that the water is collected inside the water collection chamber 501, and the water pressure in different intervals is controlled and collected through the water pressure expansion spring 404 with different pressure strengths.

[0037] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An environmentally friendly stratified sampling and detection device for wastewater treatment water quality, It is characterized in that include: A machine body (1), a descending head (2) and a collecting mechanism (3), wherein the lower end of the machine body (1) is fixedly mounted with the descending head (2), the top end of the descending head (2) is provided with the collecting mechanism (3), an adjusting mechanism (5) is installed inside the collecting mechanism (3), a sliding mechanism (6) is provided on the outer surface of the adjusting mechanism (5), an elastic mechanism (7) is provided inside the adjusting mechanism (5), the upper end outer surface of the collecting mechanism (3) is connected with a second mounting plate (8), the top end outer surface of the second mounting plate (8) is hinged with a connecting belt (9), the top end of the connecting belt (9) is connected with a placing plate (10), and the outer surface of the placing plate (10) is fixedly mounted with a working motor (11); A hydraulic mechanism (4), wherein the top of the collecting mechanism (3) is fixedly provided with the hydraulic mechanism (4), wherein the hydraulic mechanism (4) comprises an infiltration groove (401), wherein the infiltration groove (401) is arranged inside the collecting mechanism (3), wherein a hydraulic chamber (402) is arranged below the infiltration groove (401), wherein an adjusting plate (403) is installed inside the hydraulic chamber (402), wherein the outer surface of the bottom end of the adjusting plate (403) is fixedly connected with a hydraulic expansion spring (404), wherein the bottom end surface of the adjusting plate (403) is welded with an adjusting column (406), wherein the outer surface of the bottom end of the hydraulic expansion spring (404) is fixedly connected with a first The first mounting plate (405) comprises a first adjusting plate (403) which is slidably and telescopically connected inside the hydraulic chamber (402); the inner wall of the hydraulic chamber (402) is a cylindrical steel plate with a smooth structure; the hydraulic telescopic spring (404) is fixedly mounted on the outer surface of the first mounting plate (405) by screws; the adjusting plate (403) is movably connected to the first mounting plate (405) by the hydraulic telescopic spring (404); the adjusting column (406) is inserted through the inside of the first mounting plate (405); four groups of the hydraulic telescopic spring (404) are provided; and the bottom end of the adjusting column (406) is fixedly connected to the inside of the collecting mechanism (3); The collecting mechanism (3) comprises a movable bin (301), wherein the movable bin (301) is fixedly mounted on the outer surface of the bottom end of the second mounting plate (8), a connecting column (302) is inserted inside the movable bin (301), a first connecting rod (303) is welded to the bottom end of the connecting column (302), an adjusting tube (304) is fixedly connected to the outer surface of the bottom end of the first connecting rod (303), a cam rod (305) is sleeved on the outer surface of the adjusting tube (304), the adjusting tube (304) is rotatably connected inside the cam rod (305), and the cam rod (305) is fixedly mounted on the outer surface of the adjusting mechanism (5) by means of screws, and when the connecting column (302) is lowered, the adjusting tube (304) is connected to the first connecting rod (303) through the connection, so that the adjusting tube (304) can be raised and lowered in height after being connected to the first connecting rod (303), so that when the adjusting tube (304) is adjusted inside the cam rod (305), the adjusting mechanism (5) can be controlled to rotate.

2. An environmentally friendly wastewater treatment water quality stratified sampling and detection device according to claim 1, Features: The top end of the connecting column (302) is fixedly connected to the outer surface of the adjusting column (406), the outer surface of the adjusting tube (304) is a smooth cylindrical steel tube, the adjusting tube (304) is welded to the outer surface of the first connecting rod (303), and the adjusting tube (304) is connected to the bottom end of the connecting column (302) through the first connecting rod (303).

3. An environmentally friendly wastewater treatment water quality stratified sampling detection device according to claim 1, Features: The regulating mechanism (5) comprises a water quality collection chamber (501), the water quality collection chamber (501) being arranged inside the collection mechanism (3), a rotating shaft (502) being mounted on the outer surface of the water quality collection chamber (501), a fixing rod (503) being welded to the outer surface of the rotating shaft (502), and the top end of the fixing rod (503) being fixedly connected to a limiting plate (504).

4. An environmentally friendly wastewater treatment water quality stratified sampling and detection device according to claim 3, Features: The fixing rod (503) is welded to the outer surface of the rotating shaft (502), and four groups of the fixing rod (503) are provided. The limiting plate (504) is fixedly mounted on the outer surface of the fixing rod (503) by means of screws, and the outer surface of the limiting plate (504) is a smooth arc-shaped steel plate.

5. An environmentally friendly wastewater treatment water quality stratified sampling and detection device according to claim 1, Features: The sliding mechanism (6) comprises a limit block (601), the limit block (601) is arranged inside the adjustment mechanism (5), the bottom end of the limit block (601) is fixedly connected to a snap-fit ​​seat (602), the outer surface of the snap-fit ​​seat (602) is snap-fitted with a sliding seat (603), and the outer surface of the sliding seat (603) is provided with a sliding groove (604).

6. An environmentally friendly wastewater treatment water quality stratified sampling and detection device according to claim 5, Features: The sliding groove (604) is provided on the outer surface of the sliding seat (603), the sliding seat (603) is slidably connected to the sliding groove (604), and the buckling seat (602) is buckled and installed on the outside of the sliding seat (603).

7. An environmentally friendly wastewater treatment water quality stratified sampling and detection device according to claim 1, Features: The elastic mechanism (7) comprises a fixing plate (701), wherein the fixing plate (701) is arranged inside the adjusting mechanism (5), an elastic spring (702) is fixedly mounted on an outer surface of one side of the fixing plate (701), a second connecting rod (703) is fixedly connected to the bottom end of the elastic spring (702), and a connecting plate (704) is fixedly connected to the outer surface of the bottom end of the second connecting rod (703).

8. An environmentally friendly wastewater treatment water quality stratified sampling and detection device according to claim 7, Features: The elastic spring (702) is fixedly mounted on the outer surface of the fixing plate (701) by means of screws, the second connecting rod (703) is welded to the outer surface of the elastic spring (702), the connecting plate (704) is movably connected to the elastic spring (702) by means of the second connecting rod (703), and one side of the connecting plate (704) is fixedly connected to the outer surface of the limiting block (601).

9. An environmentally friendly wastewater treatment water quality stratified sampling and detection device according to claim 1, Features: The collecting mechanism (3) is provided with three groups, the outer surface of the descending head (2) is a conical structure, the outer surface of the connecting belt (9) is a rubber belt with a smooth structure, and the connecting belt (9) is connected to the outer surface of the second mounting plate (8) through a hinge seat.

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