Water quality detection sampler for sewage treatment plant and sampling method

Abstract

The invention relates to the technical field of water quality detection, and discloses a water quality detection sampler for a sewage treatment plant and a sampling method. Comprising an overall external mechanism, an overall top plate is fixedly connected to the outer wall of the top of the overall external mechanism, purified water and a polluted water source are different in surface tension, the height of an internal detection water source is controlled, and when the water source is detected, if the height difference value between an external detection plate and an internal detection plate exceeds a normal value, the water source is listed as the polluted water source; when internal water flow scours, internal air is extruded by the water flow to diffuse outwards, an air pressure cooling mechanism is arranged at the top, when the air is extruded by force and passes through an air collection pipeline, the air passes through small holes from large holes, the air pressure intensity and density are increased, the air speed is increased, and the slow cooling effect is achieved; the water drop condensation plate is installed outside the device, the water drops are effectively collected and discharged, and the problems of moss growth, corrosion, rusting and the like are avoided.

Description

Technical Field

[0001] This invention relates to the field of fastener production equipment technology, specifically to a wastewater treatment plant water quality testing sampler and sampling method. Background Technology

[0002] Wastewater treatment refers to the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering, and is increasingly becoming a part of the daily lives of ordinary people.

[0003] Currently, water quality testing samplers mostly use a spot check method, which can only reflect the quality inspection information at a certain time period and cannot reflect the internal water quality information in real time. This results in low efficiency and a small range. Furthermore, during the testing period, due to the internal temperature difference, water droplets often condense on the outer wall of the sampler, which can corrode the metal outer wall and cause algae growth over time. Summary of the Invention

[0004] The purpose of this invention is to provide a water quality testing sampler and sampling method for wastewater treatment plants to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a water quality testing sampler for a wastewater treatment plant, comprising an overall external mechanism, an overall top plate fixedly connected to the top outer wall of the overall external mechanism, a plurality of air pressure holes opened on the top outer wall of the overall top plate, a detection hole opened on the top outer wall of the overall top plate, and a water droplet condensation plate fixedly connected to the bottom outer wall of the overall top plate. The device is externally equipped with a water droplet condensation plate, which effectively collects and discharges water droplets, avoiding problems such as the growth of moss and corrosion and rust. The air pressure cooling mechanism is fixedly connected to the top of the air pressure hole. An air collection pipe is fixedly connected to the top outer wall of the air pressure cooling mechanism. A cooling ring is fixedly connected to the top of the air collection pipe. When the water flow at the bottom squeezes the internal air, the air is compressed, which increases the air pressure and density, thus achieving a cooling effect. A water source collection mechanism is provided, wherein a collection fixing body is fixedly connected to the top outer wall of the water source collection mechanism, and a collection gear is rotatably connected to the inner wall of the collection fixing body. The inner wall of the collection gear is provided with several collection grooves. When the collection grooves are working, the collection gear is scourted by the water flow, which not only provides more power but also continuously collects and tests samples. Long-term mixed collection can better detect water quality and avoid problems such as detection gaps. A rotating gear is rotatably connected to the outer wall of the collection fixing body. A water quality testing institution has a testing outer wall fixedly connected to its top outer wall, a water inlet hole opened on the inner wall of the testing outer wall, a water pipe fixing bracket fixedly connected to the top outer wall of the testing outer wall, and a testing water pipe fixedly connected inside the water pipe fixing bracket. The purity of the internal sample is detected by capillary action. If there are too many impurities in the sample, the capillary action reaction will be affected. The top water valve mechanism has a water valve baffle plate rotatably connected to its top. A baffle plate support rod is fixedly connected inside the water valve baffle plate. A rotating plate is fixedly connected to the outer periphery of the baffle plate support rod. The rotating plate can be manually opened after being closed internally during operation.

[0006] Preferably, the overall external mechanism is provided with an overall top plate, and a display screen is fixedly connected to the outer wall of the overall top plate. An alarm is provided at the bottom of the outer wall of the display screen. An external collection pipe is fixedly connected to the bottom outer wall of the water droplet condensation plate. The external collection pipe is used to collect internal water and cause the internal air to flow upward after being compressed. A water outlet is fixedly connected to the bottom of the external collection pipe.

[0007] Preferably, the overall external mechanism has an overall top plate inside, and a top water inlet is fixedly connected to the top of the overall top plate. A water source collection hole is opened on the outer periphery of the top water inlet. A water valve hole is opened on the top outer wall of the top water inlet, and a restrictor is fixedly connected to the top inner wall of the top water inlet. The purpose of the restrictor is to allow the water quality detection mechanism to transmit a signal to the top water valve mechanism, release the top constraint, and use the impact force of the water flow to complete the internal sealing effect, thereby achieving automatic valve closure and flow obstruction. The function of the restrictor is to restrict the flow when closed, preventing the internal valve from rotating continuously under force.

[0008] Preferably, the air pressure cooling mechanism has a cooling ring inside, and several cooling fixing plates are fixedly connected to the top outer wall of the cooling ring. Cooling air diffusers are fixedly connected to the top outer walls of the several cooling fixing plates. When the internal water flows, the internal air is squeezed outward by the water flow. When the air is squeezed through the air collection pipe, the air pressure increases due to the characteristic of being larger at the bottom and smaller at the top.

[0009] Preferably, the water source collection mechanism is equipped with a rotating gear, and a rotating outer disk is fixedly connected to the outer wall of the rotating gear. A water-collecting body is fixedly connected to the outer wall of the rotating outer disk, and a collection main rod is rotatably connected to the outer wall of the water-collecting body. The collection main rod is rotatably connected to a telescopic bottom rod at the end away from the water-collecting body. When the top collection gear rotates, it drives the bottom telescopic bottom rod to slide up and down, continuously discharging the test sample from the water quality testing mechanism into the overall device, thus avoiding waste of the test sample.

[0010] Preferably, the water source collection mechanism is equipped with a telescopic base rod, and a telescopic spring is fixedly connected to the bottom of the telescopic base rod. The purpose of setting the telescopic spring is that when the top rotating outer plate rotates, the tension generated by the spring can effectively reduce water leakage inside the mechanism and avoid the problem of substandard water source detection. The bottom of the telescopic spring is fixedly connected to a collection control rod.

[0011] Preferably, the water source collection mechanism is provided with a collection and fixing body inside. A water source collection body is fixedly connected to the bottom outer wall of the collection and fixing body. A water flow pipe is fixedly connected to the bottom outer wall of the water source collection body. The end of the water flow pipe away from the water source collection body is fixedly connected to the water inlet hole. The collected sample enters the water quality testing mechanism through the water inlet hole and enters the water valve through the testing hole.

[0012] Preferably, the water quality testing mechanism has an internal testing outer wall, an external testing plate is fixedly connected to the inner wall of the testing outer wall, and an external testing instrument is fixedly connected to the outer wall of the external testing plate. The internal testing plate is fixedly connected to the inside of the testing water pipe, and an internal testing instrument is fixedly connected to the outer wall of the internal testing plate. Utilizing the difference in surface tension between pure water and contaminated water, the height of the internal testing water source is controlled. When testing the water source, if the height difference between the external and internal testing plates exceeds the normal value, the water source is classified as contaminated.

[0013] Preferably, the internal parts of the top water valve mechanism are located at the water valve hole, and the water valve obstruction body is fixedly connected to the top outer wall of the water valve hole. The obstruction main rod is rotatably connected to the top outer wall of the water valve obstruction body. When the detection result indicates pollution, the water quality detection mechanism transmits a signal to the top water valve mechanism to release the top restraint and use the impact force of the water flow to complete the internal sealing effect, thereby automatically closing the valve to obstruct the flow.

[0014] A sampling method for a wastewater treatment plant water quality testing sampler includes the following steps: S1: When water quality testing is required, when the top water flow enters the top inlet, the internal sampling gear rotates under impact force, and the sampling tank faces upward to collect a certain amount of test water, which then enters the collection and transportation stage. S2: When the water source enters the water quality testing agency, it stays on the outer wall of the testing area. The purity of the water source is determined by the difference between the external and internal testing plates, and the water is discharged from the water quality testing agency through the collection control rod. S3: Most of the water source passes through the overall structure from the top inlet, which increases the internal pressure, compresses the internal air to flow outward, and collects it through the air collection pipe and discharges it outward. S4: When the water quality testing agency detects that the water source does not meet the standards, it transmits a signal to the top water valve mechanism, preventing the main rod from losing its restraint, and uses the downward flushing force from the top to make the water valve baffle complete the blocking task.

[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) This invention is a water quality testing sampler for sewage treatment plants. Compared with the sampling and testing methods on the market, this device is equipped with a collection gear. When the internal water flow impacts and drives the collection gear, the internal collection tank collects the sample and transports it to the water quality testing agency. Long-term mixed collection can better test the water quality and avoid problems such as detection gaps.

[0016] (2) The present invention is a water quality testing sampler for sewage treatment plants. During the testing process, the temperature inside the detector is low due to water flow, and the dry external air easily forms external water droplets. The device is equipped with a water droplet condensation plate to effectively collect and discharge water droplets, avoiding problems such as the growth of moss and corrosion and rust.

[0017] (3) The present invention is a water quality testing sampler for sewage treatment plants. When the internal water flows, the internal air is squeezed outward by the water flow. The top is equipped with a pressure cooling mechanism. When the air is squeezed through the air collection pipe, it has the characteristic of being larger at the bottom and smaller at the top. The air passes through the small hole from the large hole, the air pressure increases, the density increases, and the wind speed increases to achieve the effect of gradual cooling, effectively avoiding the phenomenon of external condensation.

[0018] (4) The present invention is a water quality testing sampler for sewage treatment plants. The detection principle of the device is capillary phenomenon. It utilizes the difference in surface tension between pure water and polluted water source to control the height of the internal water source. When testing the water source, if the height difference between the external testing plate and the internal testing plate exceeds the normal value, it is classified as a polluted water source.

[0019] (5) The present invention is a water quality testing sampler for sewage treatment plants. When the test result is determined to be polluted, the water quality testing mechanism transmits a signal to the top water valve mechanism to release the top restraint and use the impact force of the water flow to complete the internal sealing effect, thereby achieving automatic valve closure to block the flow. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall external structure of the present invention; Figure 3 This is a cross-sectional view of the air pressure cooling mechanism of the present invention; Figure 4 This is a schematic diagram of the right-side structure of the water source collection mechanism of the present invention; Figure 5 This is a schematic diagram of the left-side structure of the water source collection mechanism of the present invention; Figure 6 This is a schematic diagram of the water quality testing mechanism of the present invention; Figure 7 This is a cross-sectional structural diagram of the water quality testing mechanism of the present invention; Figure 8 This is a schematic diagram of the overall structure of the top water valve mechanism of the present invention; Figure 9 For the present invention Figure 8 Enlarged view of A in the middle; Figure 10 This is a schematic diagram of the overall structure of the present invention.

[0021] In the diagram: 1. Overall external structure; 101. Overall top plate; 102. Air pressure hole; 103. Detection hole; 104. Water droplet condensation plate; 105. Display screen; 106. Alarm; 107. External collection pipe; 108. Water outlet; 109. Top water inlet; 110. Water source collection hole; 112. Water valve hole; 113. Restricting component; 2. Air pressure cooling mechanism; 201. Air collection pipe; 202. Cooling ring; 203. Cooling fixing plate; 204. Cooling diffuser plate; 3. Water source collection mechanism; 301. Collection fixing component; 302. Collection gear; 303. Collection inner tank; 304. Rotating gear one; 305. 306. Rotating outer disc; 307. Collecting waterproof foreign body; 308. Collecting main rod; 309. Telescopic base rod; 310. Telescopic spring; 311. Collecting control rod; 312. Water source collection body; 313. Flowing water pipe; 4. Water quality testing mechanism; 401. Detection outer wall; 402. Water inlet hole; 403. Water pipe fixing bracket; 404. Detection water pipe; 405. External detection plate; 406. External detection instrument; 407. Internal detection plate; 408. Internal detection instrument; 5. Top water valve mechanism; 501. Water valve baffle plate; 502. Baffle plate support rod; 503. Rotating plate; 504. Water valve obstructing foreign body; 505. Obstructing main rod. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0023] Please see Figure 1 - Figure 5 The present invention provides a technical solution: a water quality testing sampler for a wastewater treatment plant, comprising an overall external mechanism 1, an overall top plate 101 fixedly connected to the top outer wall of the overall external mechanism 1, a plurality of air pressure holes 102 opened on the top outer wall of the overall top plate 101, a detection hole 103 opened on the top outer wall of the overall top plate 101, and a water droplet condensation plate 104 fixedly connected to the bottom outer wall of the overall top plate 101. The device is externally installed with a water droplet condensation plate 104, which effectively collects and discharges water droplets, avoiding problems such as the growth of moss and corrosion and rust. The air pressure cooling mechanism 2 is fixedly connected to the top of the air pressure hole 102. An air collection pipe 201 is fixedly connected to the top outer wall of the air pressure cooling mechanism 2. A cooling ring 202 is fixedly connected to the top of the air collection pipe 201. When the water flow at the bottom squeezes the internal air, the air is compressed, which leads to an increase in air pressure and density, thus achieving a cooling effect. The water source collection mechanism 3 has a collection fixing body 301 fixedly connected to the top outer wall of the water source collection mechanism 3. A collection gear 302 is rotatably connected to the inner wall of the collection fixing body 301. Several collection inner grooves 303 are opened on the inner wall of the collection gear 302. The purpose of setting the collection inner grooves 303 is to provide more power and continuously collect and test samples when the collection gear 302 is washed by water flow. Long-term mixed collection can better detect water quality and avoid problems such as detection gaps. A rotating gear 304 is rotatably connected to the outer wall of the collection fixing body 301. Water quality testing unit 4, with a testing outer wall 401 fixedly connected to the top outer wall of the water quality testing unit 4, a water inlet hole 402 opened on the inner wall of the testing outer wall 401, a water pipe fixing bracket 403 fixedly connected to the top outer wall of the testing outer wall 401, and a testing water pipe 404 fixedly connected inside the water pipe fixing bracket 403. The purity of the internal sample is detected by using capillary action. If there are too many impurities in the sample, it will affect the reaction of capillary action. The top water valve mechanism 5 has a water valve baffle plate 501 rotatably connected to its top. A baffle plate support rod 502 is fixedly connected inside the water valve baffle plate 501. A rotating plate 503 is fixedly connected to the outer periphery of the baffle plate support rod 502. The purpose of setting the rotating plate 503 is that it can be manually opened when the inside is closed.

[0024] The overall external structure 1 has an overall top plate 101 inside. A display screen 105 is fixedly connected to the outer wall of the overall top plate 101. An alarm 106 is opened at the bottom of the outer wall of the display screen 105. An external collection pipe 107 is fixedly connected to the bottom outer wall of the water droplet condensation plate 104. The purpose of setting the external collection pipe 107 is to collect the internal water source and make the internal air flow upward after being compressed. A water outlet 108 is fixedly connected to the bottom of the external collection pipe 107.

[0025] The overall external mechanism 1 has an overall top plate 101 inside, and a top water inlet 109 is fixedly connected to the top of the overall top plate 101. A water source collection hole 110 is opened on the outer periphery of the top water inlet 109. A water valve hole 112 is opened on the top outer wall of the top water inlet 109, and a limiting body 113 is fixedly connected to the top inner wall of the top water inlet 109. The purpose of setting the limiting body 113 is to allow the water quality detection mechanism 4 to transmit a signal to the top water valve mechanism 5, release the top constraint, and use the impact force of the water flow to complete the internal sealing effect, so as to realize the automatic closing of the valve to block the flow. The function of the limiting body 113 is to limit the flow when closing, so as to prevent the internal valve from rotating continuously under force.

[0026] The air pressure cooling mechanism 2 has a cooling ring 202 inside. Several cooling fixing plates 203 are fixedly connected to the top outer wall of the cooling ring 202. Cooling air diffusers 204 are fixedly connected to the top outer wall of the cooling fixing plates 203. When the internal water flows, the internal air is squeezed outward by the water flow. When the air is squeezed through the air collection pipe 201, the air pressure increases due to the characteristic of being larger at the bottom and smaller at the top.

[0027] The water source collection mechanism 3 is equipped with a rotating gear 304. A rotating outer disk 305 is fixedly connected to the outer wall of the rotating gear 304. A collection waterproof body 306 is fixedly connected to the outer wall of the rotating outer disk 305. A collection main rod 307 is rotatably connected to the outer wall of the collection waterproof body 306. A telescopic bottom rod 308 is rotatably connected to the end of the collection main rod 307 away from the collection waterproof body 306. When the top collection gear 302 rotates, it drives the bottom telescopic bottom rod 308 to slide up and down, continuously discharging the test sample from the water quality testing mechanism 4 into the overall device, thus avoiding waste of the test sample.

[0028] The water source collection mechanism 3 is equipped with a telescopic base rod 308. A telescopic spring 309 is fixedly connected to the bottom of the telescopic base rod 308. The purpose of setting the telescopic spring 309 is that when the top rotating outer disk 305 rotates, the tension generated by the spring can effectively reduce water leakage inside the mechanism and avoid the problem of substandard water source detection. A collection control rod 310 is fixedly connected to the bottom of the telescopic spring 309.

[0029] The water source collection mechanism 3 is equipped with a collection and fixing body 301. A water source collection body 311 is fixedly connected to the bottom outer wall of the collection and fixing body 301. A water flow pipe 312 is fixedly connected to the bottom outer wall of the water source collection body 311. The end of the water flow pipe 312 away from the water source collection body 311 is fixedly connected to the water inlet hole 402. The collected sample enters the water quality testing mechanism 4 through the water inlet hole 402 and enters the water valve through the testing hole 103. Example 2

[0030] Distinguishing features from Example 1; like Figure 1 - Figure 10 As shown: The water quality testing mechanism 4 has an internal testing outer wall 401. An external testing plate 405 is fixedly connected to the inner wall of the testing outer wall 401. An external testing instrument 406 is fixedly connected to the outer wall of the external testing plate 405. An internal testing plate 407 is fixedly connected to the inside of the testing water pipe 404. An internal testing instrument 408 is fixedly connected to the outer wall of the internal testing plate 407. By utilizing the difference in surface tension between pure water and polluted water source, the height of the internal testing water source is controlled. When testing the water source, if the height difference between the external testing plate 405 and the internal testing plate 407 exceeds the normal value, it is classified as a polluted water source.

[0031] The internal parts of the top water valve mechanism 5 are located at the water valve hole 112. The water valve obstruction body 504 is fixedly connected to the top outer wall of the water valve hole 112. The obstruction main rod 505 is rotatably connected to the top outer wall of the water valve obstruction body 504. When the detection result is determined to be contaminated, the water quality detection mechanism 4 transmits a signal to the top water valve mechanism 5 to release the top restraint and use the impact force of the water flow to complete the internal sealing effect, thereby automatically closing the valve to block the flow.

[0032] A sampling method for a wastewater treatment plant water quality testing sampler includes the following steps: S1: When water quality needs to be inspected, when the top water flow enters the top inlet 109, the internal collection gear 302 rotates under impact force, and the collection tank 303 faces upward to collect a certain amount of test water, which then enters the collection and transportation stage. S2: When the water source enters the water quality testing mechanism 4, it stays at the outer wall 401 of the testing. The purity of the water source is judged by the difference between the outer testing plate 405 and the inner testing plate 407, and then discharged from the water quality testing mechanism 4 through the collection control rod 310. S3: Most of the water source passes through the overall structure from the top water inlet 109, which increases the internal pressure, compresses the internal air to flow outward, and collects it through the air collection pipe 201 and discharges it outward. S4: When the water quality testing agency 4 detects that the water source does not meet the standards, it transmits a signal to the top water valve mechanism 5, which prevents the main rod 505 from being restrained and uses the downward flushing force from the top to make the water valve baffle 501 complete the blocking task.

[0033] One specific application of this embodiment is: When water quality testing is required, when the top water flow enters the top inlet 109, the internal sampling gear 302 rotates under impact, and the sampling inner tank 303, facing upwards, collects a certain amount of water for testing. The device contains the sampling gear 302; when the internal water flow impacts and drives the sampling gear 302, the internal sampling inner tank 303 collects a sample and transports it to the water quality testing mechanism 4. Long-term mixed sampling allows for better water quality testing and avoids problems such as detection gaps. After the water source enters the water quality testing mechanism 4, it remains at the outer detection wall 401. Utilizing the difference in surface tension between pure water and contaminated water, the height of the internal testing water source is controlled. During water source testing, the external detection plate 405 and the internal detection plate 407... If the height difference exceeds the normal value, it is classified as a polluted water source and discharged through the water quality testing mechanism 4 via the collection control rod 310. Most of the water source passes through the overall mechanism from the top inlet 109. When the internal water flows, the internal air is squeezed outward by the water flow. The top is equipped with an air pressure cooling mechanism 2. When the air is squeezed through the air collection pipe 201, due to the characteristic of being larger at the bottom and smaller at the top, the air passes through the small hole from the large hole, the air pressure increases, the density increases, and the wind speed increases to achieve a gradual cooling effect, effectively avoiding the phenomenon of external condensation. When the test result is judged to be polluted, the water quality testing mechanism 4 transmits a signal to the top water valve mechanism 5 to release the top restraint and use the impact force of the water flow to complete the internal sealing effect, realizing the automatic closure of the valve to block the flow.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water quality testing sampler for a wastewater treatment plant, comprising an integral external mechanism (1), an integral top plate (101) fixedly connected to the top outer wall of the integral external mechanism (1), a plurality of air pressure holes (102) being provided on the top outer wall of the integral top plate (101), a detection hole (103) being provided on the top outer wall of the integral top plate (101), and a water droplet condensation plate (104) fixedly connected to the bottom outer wall of the integral top plate (101). Air pressure cooling mechanism (2), the air pressure cooling mechanism (2) is fixedly connected to the top of the air pressure hole (102), the top outer wall of the air pressure cooling mechanism (2) is fixedly connected to the air collection pipe (201), and the top of the air collection pipe (201) is fixedly connected to the cooling ring (202). A water source collection mechanism (3) is provided with a collection fixing body (301) fixedly connected to the top outer wall of the water source collection mechanism (3), and a collection gear (302) is rotatably connected to the inner wall of the collection fixing body (301). Several collection inner grooves (303) are provided on the inner wall of the collection gear (302), and a rotating gear (304) is rotatably connected to the outer wall of the collection fixing body (301). A water quality testing mechanism (4) is provided with a testing outer wall (401) fixedly connected to the top outer wall of the water quality testing mechanism (4), and a water inlet hole (402) is provided on the inner wall of the testing outer wall (401). A water pipe fixing bracket (403) is fixedly connected to the top outer wall of the testing outer wall (401), and a testing water pipe (404) is fixedly connected inside the water pipe fixing bracket (403). The top water valve mechanism (5) is rotatably connected to the top of the top water valve mechanism (5). A baffle plate (501) is fixedly connected inside the baffle plate (501). A rotating plate (503) is fixedly connected to the outer periphery of the baffle plate support rod (502).

2. The water quality detection sampler for sewage treatment plants according to claim 1, characterized in that: The overall external mechanism (1) is provided with an overall top plate (101) inside. A display screen (105) is fixedly connected to the outer wall of the overall top plate (101). An alarm (106) is provided at the bottom of the outer wall of the display screen (105). The water droplet condensation plate (104) is fixedly connected to an external collection pipe (107) at its bottom outer wall, and the bottom of the external collection pipe (107) is fixedly connected to a water outlet (108).

3. The water quality detection sampler for sewage treatment plants according to claim 2, characterized in that: The overall external mechanism (1) is provided with an overall top plate (101), and the top of the overall top plate (101) is fixedly connected to a top water inlet (109). A water source collection hole (110) is opened on the outer periphery of the outer wall of the top water inlet (109). The top water inlet (109) has a water valve hole (112) on its top outer wall and a limiting body (113) is fixedly connected to its top inner wall.

4. The water quality detection sampler for sewage treatment plants according to claim 3, characterized in that: The air pressure cooling mechanism (2) is provided with a cooling ring (202) inside. Several cooling fixing plates (203) are fixedly connected to the top outer wall of the cooling ring (202), and cooling air diffusers (204) are fixedly connected to the top outer wall of the several cooling fixing plates (203).

5. The water quality detection sampler for sewage treatment plants according to claim 4, characterized in that: The water source collection mechanism (3) is equipped with a rotating gear (304) inside. A rotating outer disk (305) is fixedly connected to the outer wall of the rotating gear (304). A collection waterproof body (306) is fixedly connected to the outer wall of the rotating outer disk (305). A collection main rod (307) is rotatably connected to the outer wall of the collection waterproof body (306). The main collection rod (307) is rotatably connected to a telescopic bottom rod (308) at the end away from the waterproof collection body (306).

6. The water quality detection sampler for sewage treatment plants according to claim 5, characterized in that: The water source collection mechanism (3) is equipped with a telescopic bottom rod (308) inside. A telescopic spring (309) is fixedly connected to the bottom of the telescopic bottom rod (308), and a collection control rod (310) is fixedly connected to the bottom of the telescopic spring (309).

7. The water quality detection sampler for sewage treatment plants according to claim 6, characterized in that: The water source collection mechanism (3) is provided with a collection and fixing body (301) inside. A water source collection body (311) is fixedly connected to the bottom outer wall of the collection and fixing body (301). A water flow pipe (312) is fixedly connected to the bottom outer wall of the water source collection body (311). The end of the water flow pipe (312) away from the water source collection body (311) is fixedly connected to the water inlet hole (402).

8. A wastewater treatment plant water quality testing sampler according to claim 7, characterized in that: The water quality testing mechanism (4) is provided with an outer testing wall (401) inside. An external testing plate (405) is fixedly connected to the inner wall of the outer testing wall (401). An external testing instrument (406) is fixedly connected to the outer wall of the external testing plate (405). The internal testing plate (407) is fixedly connected to the inside of the testing water pipe (404), and an internal testing instrument (408) is fixedly connected to the outer wall of the internal testing plate (407).

9. A wastewater treatment plant water quality testing sampler according to claim 8, characterized in that: The internal parts of the top water valve mechanism (5) are located at the water valve hole (112). The water valve obstruction body (504) is fixedly connected to the top outer wall of the water valve hole (112). The obstruction main rod (505) is rotatably connected to the top outer wall of the water valve obstruction body (504).

10. A sampling method for a water quality testing sampler used in a wastewater treatment plant, characterized in that, Includes the following steps: S1: When water quality needs to be inspected, when the top water flow enters the top inlet (109), the internal collection gear (302) rotates under impact force, and the collection tank (303) faces upward to collect a certain amount of test water and enter the collection and transportation stage; S2: When the water source enters the water quality testing institution (4) through (312), it stays at the outer wall (401) of the testing. The purity of the water source is judged by the difference between the outer testing plate (405) and the inner testing plate (407), and the water source is discharged from the water quality testing institution (4) through the collection control rod (310). S3: Most of the water source passes through the overall structure from the top inlet (109), which increases the internal pressure, squeezes the internal air to flow outward, and collects it through the air collection pipe (201) and discharges it outward; S4: When the water quality testing agency (4) detects that the water source does not meet the standards, it transmits a signal to the top water valve mechanism (5), which prevents the main rod (505) from losing its restraint and uses the downward flushing force from the top to make the water valve baffle (501) complete the blocking task.

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