Water quality monitoring sampling device for water pollution control and sampling method thereof

Abstract

The invention relates to the technical field of sewage sampling, and discloses a water quality monitoring sampling device for water pollution control and a sampling method thereof.The water quality monitoring sampling device comprises a power mechanism, the power mechanism further comprises a collecting pipe, and a plurality of extraction pipes are connected to the side wall of the collecting pipe in a penetrating mode. All the filtering mechanisms are embedded into the horizontal plane, a power source of an electric telescopic rod is connected, the electric telescopic rod tends to stretch up and down, the electric telescopic rod drives a sliding rod to move downwards through a fixing plate, at the moment, the sliding rod pushes a piston plate to move downwards along the inner wall of an extraction pipe, and in the process, a sliding round rod drives a circular ring to move downwards by pulling a spring; the circular ring is influenced by the friction force of the friction ring, in the downward moving process of the piston plate, the distance between the circular ring and the piston plate is increased, and the blocking block is far away from the water inlet, so that the sample water in the extraction pipe enters the top of the piston plate through a gap between the blocking block and the fixed bracket, and the collection of the sample is completed.

Description

Technical Field

[0001] The invention relates to the technical field of sewage sampling equipment, in particular to a water quality monitoring sampling device for water pollution control and a sampling method thereof. Background Art

[0002] Water pollution sampling, also known as water pollution sampling, refers to the process of extracting water samples from polluted water according to prescribed methods and a certain proportion. By testing and analyzing the extracted water samples, the degree of water pollution, the type and content of pollutants and other related water quality parameters can be determined to guide production activities and take relevant measures to reduce water pollution. With the continuous development of the economy and the gradual improvement of people's environmental awareness, people are paying more and more attention to the governance and protection of the environment. When conducting sewage treatment, it is necessary to sample and test the water quality of relevant water sources.

[0003] Among them, the sewage contains substances with higher weight, and the above substances are at the bottom of the water flow, and the rest of the sewage is at the top. If the equipment only samples part of it, it will cause a large deviation in the sample value. In response to the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a water quality monitoring sampling device for water pollution control, comprising a power mechanism, the power mechanism also includes a collecting pipe, a plurality of extraction pipes are connected through the side wall of the collecting pipe, a sliding rod is slidably connected to the inner wall of the through hole of the extraction pipe, a fixing plate is fixedly connected to the top of the sliding rod, and an electric telescopic rod is fixedly connected to the bottom of the fixing plate;

[0005] The extraction mechanism includes a piston plate slidably connected to the inner wall of the extraction tube, a plurality of sliding round rods are fixedly connected to the top of the piston plate, a circular ring is slidably connected to the outer wall of the sliding round rod, and a plurality of blocking blocks are fixedly connected to the bottom of the circular ring;

[0006] The filtering mechanism comprises a rotating tube rotatably connected to one end of the extraction tube away from the collection tube, a plurality of river blades are fixedly connected to the outer wall of the rotating tube, and a plurality of stirring blades are fixedly connected to the inner wall of the rotating tube.

[0007] Preferably, the power mechanism also includes a mounting bracket fixedly connected to the side wall of the collection pipe, one end of the electric telescopic rod away from the fixed plate is fixedly connected to the top of the mounting bracket, and the outer walls of the plurality of extraction pipes are fixedly connected with the mounting bracket.

[0008] Preferably, the power mechanism also includes an output pipe that is connected through the side wall of the collecting tube, and a mounting plate is fixedly connected to the side wall of the collecting tube. The end of the mounting bracket away from the collecting tube is fixedly connected to the outer wall of the mounting bracket. The device is mostly used in river areas, and river blades and stirring blades are arranged inside the device. After the device completes sampling, the electric telescopic rod brings the slide bar upward to the highest point, so that the extraction tube and the inclined tube on the side are in an interconnected state. After the device is placed inside the river, the flow of the river will drive the river blades to rotate, and the river blades drive the stirring blades to rotate through the rotating tube. The sample inside the extraction tube is stirred by the stirring blades, so that the sample water inside the extraction tube flows outward or inward, and is restricted by the horizontal plane always being at the same height. At this time, the water source inside the extraction tube will be transformed. Through the application of the above-mentioned components, it is effectively avoided that the longer extraction tube removes the excess sample remaining inside after the sampling work is completed, thereby ensuring the accuracy of subsequent sampling.

[0009] Preferably, the extraction mechanism also includes a plurality of water inlets opened on the top of the piston plate, a plurality of pulling springs are fixedly connected to the top of the piston plate, one end of the pulling spring away from the piston plate is fixedly connected to the bottom of the ring, and a friction ring is fixedly connected to the inner wall of the ring. The horizontal plane is not affected by the length of the extraction tube and is always kept at the same height as the inner wall of the extraction tube. A plurality of extraction tubes are arranged inside the device. When the device is used, the device is installed beside the river bank, and all filtering mechanisms are buried in the horizontal plane. The power supply of the electric telescopic rod is turned on. At this time, the electric telescopic rod has the characteristics of up and down telescoping. The electric telescopic rod drives the sliding rod to move downward through the fixed plate. At this time, the sliding rod pushes the piston plate to move downward along the inner wall of the extraction tube. In this process, the sliding round rod drives the ring to move downward through the pulling spring, and the ring is affected by the friction force of the friction ring. In the process of the piston plate moving downward, the distance between the ring and the piston plate increases, and the blocking block is away from the water inlet, so that the sample water inside the extraction tube passes through the gap between the blocking block and the fixed bracket and enters the top of the piston plate to complete the sample collection.

[0010] Preferably, the extraction mechanism also includes a scraper fixedly connected to the bottom of the piston plate, and a push rod is fixedly connected to the bottom of the piston plate. An air inlet is opened at the side wall of the extraction tube. As the sliding rod moves upward, the circular ring is affected by the friction force and will drive the blocking block to block the water inlet, so that the piston plate forms a sealed slider and moves upward under the drive of the sliding rod, and the collected sample water passes through the inclined tube of the extraction tube and enters the collection tube, so that the equipment completes a sewage collection. Among them, several filtering mechanisms are at different depths of the river, and the sewage samples in different extraction tubes belong to samples of different depths, thereby avoiding the problem of large numerical deviation of the collected samples due to the influence of depth.

[0011] Preferably, the filtering mechanism also includes a sliding ring rotatably connected to the end of the rotating tube away from the extraction tube, a fixed bracket is fixedly connected to the outer wall of the sliding ring, a filter screen is fixedly connected to the bottom of the fixed bracket, and a support rod is fixedly connected to the end of the filter screen away from the fixed bracket. Utilizing the characteristic of the downward movement of the above-mentioned piston plate, a scraper is arranged inside the device, and the scraper will scratch the inner wall of the extraction tube during the downward movement. In addition, due to the process that the water source at the bottom of the sliding round rod enters the top of the sliding round rod through the gap of the water inlet, the cross-sectional area of ​​the sample water entering the contraction part from the expansion part is reduced, and the water flow rate is increased. When the scraper scratches the surface of the extraction tube, the material stuck to the inside of the extraction tube will be removed, and under the influence of the high flow rate, it will simultaneously enter the top of the sliding round rod to avoid the sticky material contained in the sewage from sticking to the inside of the extraction tube, thereby improving the comprehensiveness of the sample.

[0012] Preferably, the filtering mechanism also includes a compressed telescopic rod fixedly connected to the top of the support rod, the end of the compressed telescopic rod away from the support rod is fixedly connected to a cross, the outer wall of the cross is fixedly connected to a filter scraper, the outer wall of the filter scraper is slidably connected to the outer wall of the filter, and a compressed spring is sleeved on the outer wall of the compressed telescopic rod. Utilizing the force of the sliding round rod and the downward movement of the scraper, a push rod and a cross are arranged inside the device. When the device collects water, the push rod will contact the top of the cross and squeeze the cross and the filter scraper downward to scratch the outer wall of the filter scraper once. After the device completes the collection, the compressed spring will generate an extension force, forcing the cross and the filter scraper to clean the outer wall of the filter again. Through the application of the above components, the filter is prevented from being blocked by sheet-like objects such as dead leaves or plastic bags, which affects the extraction effect of the equipment.

[0013] A water quality monitoring sampling device and a sampling method for water pollution control, comprising the following steps:

[0014] S1: When using the equipment, install the equipment beside the river bank and ensure that all the filtering mechanisms are buried in the horizontal plane. Turn on the power of the electric telescopic rod. At this time, the electric telescopic rod is driven to extend and retract up and down. The electric telescopic rod drives the sliding rod to move downward through the fixed plate, and the sliding rod pushes the piston plate to move downward along the inner wall of the extraction pipe.

[0015] S2: The sliding rod drives the ring downward by pulling the spring, and the ring is affected by the friction of the friction ring. During the downward movement of the piston plate, the distance between the ring and the piston plate increases, and the blocking block moves away from the water inlet, so that the sample water in the extraction tube passes through the gap between the blocking block and the fixed bracket and enters the top of the piston plate;

[0016] S3: As the slide rod moves upward, the ring is affected by the friction force and drives the blocking block to block the water inlet, so that the piston plate forms a sealed slider and moves upward driven by the slide rod, allowing the collected sample water to pass through the inclined tube of the extraction tube and enter the collection tube.

[0017] The present invention has the following beneficial effects:

[0018] (1) The present invention utilizes the characteristic that the horizontal plane is not affected by the length of the extraction pipe and always maintains the same height as the inner wall of the extraction pipe. A plurality of extraction pipes are arranged inside the device. When using the device, the device is installed beside the river bank and all the filtering mechanisms are ensured to be buried in the horizontal plane. The power of the electric telescopic rod is turned on. At this time, the electric telescopic rod has the characteristic of telescoping up and down. The electric telescopic rod drives the sliding rod to move downward through the fixed plate. At this time, the sliding rod pushes the piston plate to move downward along the inner wall of the extraction pipe. In this process, the sliding round rod drives the circular ring to move downward through the pulling spring. The circular ring is affected by the friction force of the friction ring. In the process of the piston plate moving downward, the distance between the circular ring and the piston plate increases. In addition, the blocking block is away from the water inlet, so that the sample water in the extraction tube passes through the gap between the blocking block and the fixed bracket and enters the top of the piston plate to complete the sample collection. As the slide rod moves upward, the ring is affected by the friction force and will drive the blocking block to block the water inlet, so that the piston plate forms a sealed slider and moves upward under the drive of the slide rod, and the collected sample water passes through the inclined tube of the extraction tube and enters the collection tube, so that the equipment completes a sewage collection. Among them, several filtering mechanisms are at different depths of the river, and the sewage samples in different extraction tubes belong to samples of different depths, which avoids the problem of large numerical deviation of the collected samples due to the influence of depth.

[0019] (2) The present invention utilizes the characteristic of the piston plate moving downward and is provided with a scraper inside the device. When the scraper moves downward, it will scratch the inner wall of the extraction tube. In addition, as the water source at the bottom of the sliding rod enters the top of the sliding rod through the gap of the water inlet, the cross-sectional area of ​​the sample water entering the contraction part from the expansion part is reduced, and the water flow rate is increased. When the scraper scratches the surface of the extraction tube, the material stuck to the inside of the extraction tube is removed, and under the influence of the high flow rate, it simultaneously enters the top of the sliding rod, thereby preventing the sticky material contained in the sewage from sticking to the inside of the extraction tube, thereby improving the comprehensiveness of the sample.

[0020] (3) The present invention utilizes the downward force of the sliding round rod and the scraper, and a push rod and a cross are arranged inside the device. When the device collects water, the push rod will contact the top of the cross and squeeze the cross and the filter scraper downward, and scratch the outer wall of the filter scraper once. After the device completes the collection, the compressed spring will generate an extension force, forcing the cross and the filter scraper to clean the outer wall of the filter again. Through the application of the above components, the filter is prevented from being blocked by dead leaves, plastic bags and other sheet-like objects, which affects the extraction effect of the equipment.

[0021] (4) The device of the present invention is mostly used in river areas. River blades and stirring blades are arranged inside the device. After the device completes sampling, the electric telescopic rod brings the slide bar upward to the highest position, so that the extraction tube and the inclined tube on the side are in an interconnected state. After the device is placed inside the river, the flow of the river will drive the river blades to rotate, and the river blades drive the stirring blades to rotate through the rotating tube. The stirring blades stir the sample inside the extraction tube, so that the sample water inside the extraction tube flows outward or inward. However, due to the influence of the restricted horizontal plane always being at the same height, the water source inside the extraction tube will be transformed. Through the application of the above components, it is effectively avoided that the excess sample remaining inside the longer extraction tube is removed after the sampling work is completed, thereby ensuring the accuracy of subsequent sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the internal components of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 3 It is a cross-sectional schematic diagram of the power mechanism of the present invention;

[0026] Figure 4 It is a cross-sectional schematic diagram of the extraction mechanism of the present invention;

[0027] Figure 5 For the present invention Figure 4 A is an enlarged schematic diagram;

[0028] Figure 6 It is an exploded schematic diagram of the filter mechanism assembly of the present invention;

[0029] Figure 7 For the present invention Figure 6 A magnified schematic diagram of B;

[0030] Figure 8 It is a schematic diagram of the working process of the present invention.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] In the figure: 1. power mechanism; 101. collecting tube; 102. extraction tube; 103. mounting bracket; 104. electric telescopic rod; 105. fixing plate; 106. sliding rod; 107. mounting bracket; 108. output tube; 109. mounting plate; 2. extraction mechanism; 201. piston plate; 202. sliding round rod; 203. circular ring; 204. blocking block; 205. water inlet; 206. pulling spring; 207. friction ring; 208. scraper; 209. push rod; 210. air inlet; 3. filtering mechanism; 301. rotating tube; 302. river fan blade; 303. stirring fan blade; 304. sliding ring; 305. fixing bracket; 306. filter screen; 307. support rod; 308. compression telescopic rod; 309. cross; 310. filter screen scraper; 311. compression spring. DETAILED DESCRIPTION

[0033] 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.

[0034] For example, see Figure 1 - Figure 3 The present invention is a water quality monitoring sampling device for water pollution control, comprising a power mechanism 1, the power mechanism 1 also comprising a collecting pipe 101, a plurality of extraction pipes 102 are connected through the side wall of the collecting pipe 101, a sliding rod 106 is slidably connected to the inner wall of the through hole of the extraction pipe 102, a fixing plate 105 is fixedly connected to the top of the sliding rod 106, and an electric telescopic rod 104 is fixedly connected to the bottom of the fixing plate 105;

[0035] The extraction mechanism 2 includes a piston plate 201 slidably connected to the inner wall of the extraction tube 102, a plurality of sliding round rods 202 are fixedly connected to the top of the piston plate 201, a circular ring 203 is slidably connected to the outer wall of the sliding round rod 202, and a plurality of blocking blocks 204 are fixedly connected to the bottom of the circular ring 203;

[0036] The filtering mechanism 3 includes a rotating tube 301 rotatably connected to the end of the extraction tube 102 away from the collection tube 101, a plurality of river blades 302 are fixedly connected to the outer wall of the rotating tube 301, and a plurality of stirring blades 303 are fixedly connected to the inner wall of the rotating tube 301.

[0037] The power mechanism 1 also includes a mounting bracket 103 fixedly connected to the side wall of the collection pipe 101 , one end of the electric telescopic rod 104 away from the fixed plate 105 is fixedly connected to the top of the mounting bracket 103 , and a mounting frame 107 is fixedly connected to the outer wall of the plurality of extraction pipes 102 .

[0038] The power mechanism 1 also includes an output pipe 108 connected to the side wall of the collection pipe 101, a mounting plate 109 is fixedly connected to the side wall of the collection pipe 101, and the end of the mounting bracket 103 away from the collection pipe 101 is fixedly connected to the outer wall of the mounting bracket 107. The device is mostly used in river areas. A river fan blade 302 and a stirring fan blade 303 are arranged inside the device. After the device completes sampling, the electric telescopic rod 104 brings the slide bar 106 up to the highest position, so that the extraction pipe 102 and the inclined pipe on the side are in an intercommunication state. After the device is placed inside the river, The flow of the river will drive the river blades 302 to rotate, and the river blades 302 will drive the stirring blades 303 to rotate through the rotating tube 301. The stirring blades 303 will stir the sample inside the extraction tube 102, so that the sample water inside the extraction tube 102 will flow outward or inward. However, due to the influence that the horizontal plane is always at the same height, the water source inside the extraction tube 102 will be transformed. Through the application of the above-mentioned components, it is effectively avoided that the excess sample remaining inside the longer extraction tube 102 is removed after the sampling work is completed, thereby ensuring the accuracy of subsequent sampling.

[0039] For example 2, please refer to Figure 4 - Figure 8The present invention is a water quality monitoring sampling device for water pollution control. On the basis of the first embodiment, the extraction mechanism 2 also includes a plurality of water inlets 205 opened on the top of the piston plate 201. The top of the piston plate 201 is fixedly connected with a plurality of pulling springs 206. The end of the pulling spring 206 away from the piston plate 201 is fixedly connected to the bottom of the ring 203. The inner wall of the ring 203 is fixedly connected with a friction ring 207. The horizontal plane is not affected by the length of the extraction pipe 102 and is always kept at the same height as the inner wall of the extraction pipe 102. A plurality of extraction pipes 102 are arranged inside the device. When using the device, the device is installed beside the river bank, and all the filtering mechanisms 3 are buried in the horizontal plane. The electric telescopic rod 1 is turned on. 04 power supply, at this time the electric telescopic rod 104 has the characteristics of telescoping up and down, the electric telescopic rod 104 drives the sliding rod 106 to move downward through the fixed plate 105, and at this time the sliding rod 106 pushes the piston plate 201 to move downward along the inner wall of the extraction tube 102. In this process, the sliding round rod 202 drives the ring 203 to move downward by pulling the spring 206, and the ring 203 is affected by the friction force of the friction ring 207. In the process of the piston plate 201 moving downward, the distance between the ring 203 and the piston plate 201 increases, and the blocking block 204 is away from the water inlet 205, so that the sample water in the extraction tube 102 passes through the gap between the blocking block 204 and the fixed bracket 305 and enters the top of the piston plate 201, thereby completing the sample collection.

[0040] The extraction mechanism 2 also includes a scraper 208 fixedly connected to the bottom of the piston plate 201, and a push rod 209 is fixedly connected to the bottom of the piston plate 201. An air inlet 210 is opened at the side wall of the extraction tube 102. As the slide rod 106 moves upward, the ring 203 is affected by the friction force and will drive the blocking block 204 to block the water inlet 205, so that the piston plate 201 forms a sealed slider and moves upward driven by the slide rod 106, and the collected sample water passes through the inclined tube of the extraction tube 102 and enters the collection tube 101, so that the equipment completes a sewage collection. Among them, several filtering mechanisms 3 are at different depths of the river, and the sewage samples in different extraction tubes 102 belong to samples of different depths, avoiding the problem of large numerical deviation of the collected samples due to the influence of depth.

[0041] The filtering mechanism 3 also includes a sliding ring 304 rotatably connected to the end of the rotating tube 301 away from the extraction tube 102, a fixed bracket 305 is fixedly connected to the outer wall of the sliding ring 304, a filter screen 306 is fixedly connected to the bottom of the fixed bracket 305, and a support rod 307 is fixedly connected to the end of the filter screen 306 away from the fixed bracket 305. Utilizing the downward movement of the piston plate 201, a scraper 208 is arranged inside the device, and the scraper 208 will scrape the inner wall of the extraction tube 102 during the downward movement. Scraping is performed. In addition, due to the process in which the water source at the bottom of the sliding round rod 202 enters the top of the sliding round rod 202 through the gap of the water inlet 205, the cross-sectional area of ​​the sample water entering the contraction part from the expansion part is reduced, and the water flow rate is increased. When the scraper 208 scrapes the surface of the extraction tube 102, the material stuck to the inside of the extraction tube 102 will be removed, and under the influence of the high flow rate, it will simultaneously enter the top of the sliding round rod 202, avoiding the sticky material contained in the sewage from sticking to the inside of the extraction tube 102, thereby improving the comprehensiveness of the sample.

[0042] The filter mechanism 3 also includes a compressed telescopic rod 308 fixedly connected to the top of the support rod 307, and the end of the compressed telescopic rod 308 away from the support rod 307 is fixedly connected to a cross 309, and the outer wall of the cross 309 is fixedly connected to a filter scraper 310, and the outer wall of the filter scraper 310 is slidably connected to the outer wall of the filter 306. A compressed spring 311 is sleeved on the outer wall of the compressed telescopic rod 308. By utilizing the downward force of the sliding round rod 202 and the scraper 208, a push rod 209 and a cross 309 are arranged inside the device. 09. When the device is collecting water, the push rod 209 will contact the top of the cross 309, and squeeze the cross 309 and the filter scraper 310 to move downward, and scratch the outer wall of the filter scraper 310 once. After the device completes the collection, the compressed spring 311 will generate an extension force, forcing the cross 309 and the filter scraper 310 to clean the outer wall of the filter 306 again. Through the application of the above components, the filter 306 is prevented from being blocked by dead leaves or sheet-like objects such as plastic bags, which affects the extraction effect of the equipment.

[0043] The sampling method of the sewage sampling device includes the following steps:

[0044] S1: When using the device, install the device beside the river bank and ensure that all the filtering mechanisms 3 are buried in the horizontal plane. Turn on the power of the electric telescopic rod 104, and the electric telescopic rod 104 is driven to extend and retract up and down. The electric telescopic rod 104 drives the sliding rod 106 to move downward through the fixing plate 105, and the sliding rod 106 pushes the piston plate 201 to move downward along the inner wall of the extraction tube 102;

[0045] S2: The sliding rod 202 drives the ring 203 to move downward by pulling the spring 206, and the ring 203 is affected by the friction force of the friction ring 207. During the downward movement of the piston plate 201, the distance between the ring 203 and the piston plate 201 increases, and the blocking block 204 moves away from the water inlet 205, so that the sample water in the extraction tube 102 passes through the gap between the blocking block 204 and the fixed bracket 305 and enters the top of the piston plate 201;

[0046] S3: As the slide bar 106 moves upward, the ring 203 is affected by the friction force and drives the blocking block 204 to block the water inlet 205, so that the piston plate 201 forms a sealed slider and moves upward driven by the slide bar 106, and the collected sample water passes through the inclined tube of the extraction tube 102 and enters the interior of the collection tube 101.

[0047] A specific application of this embodiment is: the present invention utilizes the characteristic that the horizontal plane is not affected by the length of the extraction tube 102 and always maintains the same height as the inner wall of the extraction tube 102. A plurality of extraction tubes 102 are arranged inside the device. When using the device, the device is installed beside the river bank, and all the filtering mechanisms 3 are ensured to be buried in the horizontal plane. The power supply of the electric telescopic rod 104 is turned on. At this time, the electric telescopic rod 104 has the characteristic of telescoping up and down. The electric telescopic rod 104 drives the sliding rod 106 to move downward through the fixing plate 105. At this time, the sliding rod 106 pushes the piston plate 201 to move downward along the inner wall of the extraction tube 102. In this process, the sliding round rod 202 drives the ring 203 to move downward by pulling the spring 206, and the ring 2 03 Affected by the friction force of the friction ring 207, during the downward movement of the piston plate 201, the distance between the circular ring 203 and the piston plate 201 increases, and the blocking block 204 moves away from the water inlet 205, so that the sample water inside the extraction tube 102 passes through the gap between the blocking block 204 and the fixed bracket 305 and enters the top of the piston plate 201, completing the sample collection. As the slide bar 106 moves upward, the circular ring 203 is affected by the friction force and will drive the blocking block 204 to block the water inlet 205, so that the piston plate 201 forms a sealed slider and moves upward driven by the slide bar 106, so that the collected sample water passes through the inclined tube of the extraction tube 102 and enters the collection tube 101, so that the equipment completes a sewage collection.

[0048] Taking advantage of the downward movement of the piston plate 201, a scraper 208 is provided inside the device. When the scraper 208 moves downward, it will scrape the inner wall of the extraction tube 102. In addition, due to the process in which the water source at the bottom of the sliding rod 202 enters the top of the sliding rod 202 through the gap of the water inlet 205, the cross-sectional area of ​​the sample water entering the contraction part from the expansion part is reduced, and the water flow rate is increased. When the scraper 208 scrapes the surface of the extraction tube 102, the material stuck to the inside of the extraction tube 102 will be removed, and under the influence of the high flow rate, it will simultaneously enter the top of the sliding rod 202, so as to avoid the sticky material contained in the sewage from sticking to the inside of the extraction tube 102, thereby improving the completeness of the sample. The device is surface-friendly and utilizes the downward force of the sliding round rod 202 and the scraper 208. A push rod 209 and a cross 309 are provided inside the device. When the device collects water, the push rod 209 will contact the top of the cross 309, and squeeze the cross 309 and the filter scraper 310 to move downward, and perform a single scraping on the outer wall of the filter scraper 310. After the device completes the collection, the compressed spring 311 will generate an extension force, forcing the cross 309 and the filter scraper 310 to clean the outer wall of the filter 306 again. Through the application of the above components, the filter 306 is prevented from being blocked by dead leaves, plastic bags and other sheet-like objects, which affects the extraction effect of the equipment.

[0049] The device is mostly used in river areas. River blades 302 and stirring blades 303 are arranged inside the device. After the device completes sampling, the electric telescopic rod 104 brings the slide bar 106 to the highest position, so that the extraction tube 102 and the inclined tube on the side are in an interconnected state. After the device is placed inside the river, the flow of the river will drive the river blades 302 to rotate, and the river blades 302 drive the stirring blades 303 to rotate through the rotating tube 301. The stirring blades 303 stir the sample inside the extraction tube 102, so that the sample water inside the extraction tube 102 flows outward or inward, and the water source inside the extraction tube 102 will be transformed due to the influence that the horizontal plane is always at the same height. Through the application of the above components, it is effectively avoided that the longer extraction tube 102 removes the excess sample remaining inside after the sampling work is completed, thereby ensuring the accuracy of subsequent sampling.

[0050] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A water quality monitoring sampling device for water pollution control, comprising a power mechanism (1), the power mechanism (1) also comprising a collecting pipe (101), a plurality of extraction pipes (102) are connected through the side wall of the collecting pipe (101), a sliding rod (106) is slidably connected to the inner wall of the through hole of the extraction pipe (102), the top of the sliding rod (106) is fixedly connected to a fixing plate (105), and the bottom of the fixing plate (105) is fixedly connected to an electric telescopic rod (104), characterized in that: Also includes: An extraction mechanism (2), the extraction mechanism (2) comprising a piston plate (201) slidably connected to the inner wall of an extraction tube (102), a plurality of sliding round rods (202) being fixedly connected to the top of the piston plate (201), a circular ring (203) being slidably connected to the outer wall of the sliding round rod (202), and a plurality of blocking blocks (204) being fixedly connected to the bottom of the circular ring (203); A filtering mechanism (3), the filtering mechanism (3) comprising a rotating tube (301) rotatably connected to an end of an extraction tube (102) away from a collection tube (101), a plurality of river blades (302) being fixedly connected to an outer wall of the rotating tube (301), and a plurality of stirring blades (303) being fixedly connected to an inner wall of the rotating tube (301).

2. A water quality monitoring and sampling device for water pollution control according to claim 1, characterized in that: The power mechanism (1) further comprises a mounting bracket (103) fixedly connected to the side wall of the collection pipe (101); one end of the electric telescopic rod (104) away from the fixing plate (105) is fixedly connected to the top of the mounting bracket (103); and a plurality of mounting brackets (107) are fixedly connected to the outer walls of the extraction pipes (102).

3. A water quality monitoring and sampling device for water pollution control according to claim 2, characterized in that: The power mechanism (1) further comprises an output pipe (108) which is connected through the side wall of the collecting pipe (101); a mounting plate (109) is fixedly connected to the side wall of the collecting pipe (101); and one end of the mounting bracket (103) which is away from the collecting pipe (101) is fixedly connected to the outer wall of the mounting bracket (107).

4. A water quality monitoring and sampling device for water pollution control according to claim 3, characterized in that: The extraction mechanism (2) further comprises a plurality of water inlets (205) provided on the top of the piston plate (201); a plurality of pulling springs (206) are fixedly connected to the top of the piston plate (201); one end of the pulling spring (206) away from the piston plate (201) is fixedly connected to the bottom of the circular ring (203); and a friction ring (207) is fixedly connected to the inner wall of the circular ring (203).

5. A water quality monitoring and sampling device for water pollution control according to claim 4, characterized in that: The extraction mechanism (2) further comprises a scraper (208) fixedly connected to the bottom of the piston plate (201), a push rod (209) is fixedly connected to the bottom of the piston plate (201), and an air inlet (210) is provided at the side wall of the extraction pipe (102).

6. A water quality monitoring and sampling device for water pollution control according to claim 5, characterized in that: The filtering mechanism (3) further comprises a sliding ring (304) rotatably connected to an end of the rotating tube (301) away from the extraction tube (102); a fixed bracket (305) is fixedly connected to the outer wall of the sliding ring (304); a filter screen (306) is fixedly connected to the bottom of the fixed bracket (305); and a support rod (307) is fixedly connected to the end of the filter screen (306) away from the fixed bracket (305).

7. A water quality monitoring and sampling device for water pollution control according to claim 6, characterized in that: The filtering mechanism (3) further comprises a compression telescopic rod (308) fixedly connected to the top of the support rod (307); one end of the compression telescopic rod (308) away from the support rod (307) is fixedly connected to a cross (309); a filter scraper (310) is fixedly connected to the outer wall of the cross (309); the outer wall of the filter scraper (310) is slidably connected to the outer wall of the filter (306); and a compression spring (311) is sleeved on the outer wall of the compression telescopic rod (308).

8. A sampling method for a water quality monitoring sampling device for water pollution control, using the sewage sampling device as claimed in claim 7, characterized in that: The following steps are included: S1: When using the device, install the device beside the river bank and ensure that all the filtering mechanisms (3) are buried in the horizontal plane. Turn on the power of the electric telescopic rod (104), and the electric telescopic rod (104) is driven to extend and retract upward and downward. The electric telescopic rod (104) drives the sliding rod (106) to move downward through the fixing plate (105), and the sliding rod (106) pushes the piston plate (201) to move downward along the inner wall of the extraction pipe (102); S2: The sliding rod (202) drives the ring (203) to move downward by pulling the spring (206), and the ring (203) is affected by the friction force of the friction ring (207). During the downward movement of the piston plate (201), the distance between the ring (203) and the piston plate (201) increases, and the blocking block (204) moves away from the water inlet (205), so that the sample water in the extraction tube (102) enters the top of the piston plate (201) through the gap between the blocking block (204) and the fixed bracket (305); S3: As the slide rod (106) moves upward, the ring (203) is affected by the friction force and drives the blocking block (204) to block the water inlet (205), so that the piston plate (201) forms a sealed slider and moves upward driven by the slide rod (106), allowing the collected sample water to pass through the inclined tube of the extraction tube (102) and enter the interior of the collection tube (101).

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