An intelligent pipe network monitoring system for smart water services

Abstract

The present invention discloses an intelligent pipe network monitoring system for smart water affairs, which relates to the field of water quality monitoring and sampling technology. It includes a sampling piece, wherein a sample storage groove is provided in the sampling piece, and an extrusion piece and a positioning piece are sealed and slidably connected in the sample storage groove, and the sampling piece is limited and sealed and slidably connected to a mounting frame, and a mirror-distributed transmission rod is limited and slidably connected in the sampling piece, and a spring is fixedly connected between the transmission rod and the sampling piece, and uniformly distributed conduits are provided in the sampling piece, and the conduits are connected with a vacuum tube and a filter rod, and the positions of the sampling piece close to the uniformly distributed conduits are fixedly connected with a first support block. The present invention combines sediment sampling with pore water sampling to achieve synchronous layered sampling of the two, completes the sampling of sediment and pore water at the same position, so that the pore water and sediment at the same depth can better correspond, and the difference between the detection results and the actual situation is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality monitoring and sampling, and in particular to an intelligent pipe network monitoring system for smart water services. Background Art

[0002] The intelligent pipe network monitoring system is a series of technologies and methods that use advanced information technology and automation equipment to intelligently manage urban water supply and drainage systems in order to improve the efficiency of water resource utilization, reduce water resource waste, ensure water quality safety, and improve service quality. When it is applied to urban water supply, its main monitoring contents include: water quality monitoring, liquid level monitoring, pressure monitoring, flow monitoring and leakage monitoring, etc. The first two are monitoring of water sources (such as reservoirs), using data from reservoirs and other places to predict possible problems in the pipe network in advance.

[0003] When monitoring the water quality in a reservoir, it is necessary to regularly take sediment samples and pore water samples from the water source and analyze the samples. When sampling, a fixed depth is usually used, that is, the depth of the sediment sampling is consistent with the depth of the pore water sampling, so as to obtain the relationship between the content of pollutants deposited at the bottom of the reservoir and the content of pollutants in the pore water at a certain depth. However, since the existing sediment sampling device and pore water sampling device are two independent individuals, they need to be sampled separately, making it difficult for the sediment sampling site and the pore water sampling site to be in the same position, resulting in a difference between the final test result and the actual situation. Summary of the invention

[0004] The present invention provides an intelligent pipe network monitoring system for smart water services to overcome the disadvantage that the sampling locations of existing pore water and sediment are inconsistent, resulting in a difference between the final relationship between the pollutant content in the pore water and the sediment and the actual situation.

[0005] The technical solution of the present invention is: an intelligent pipe network monitoring system for smart water services, including a sampling piece, a sample storage groove is provided in the sampling piece, an extrusion piece and a positioning piece are sealed and slidably connected in the sample storage groove, a mounting frame is limited and sealed and slidably connected on a side of the sampling piece away from the extrusion piece, a transmission rod with mirror distribution is limited and slidably connected in the sampling piece, a spring is fixedly connected between the transmission rod and the sampling piece, uniformly distributed conduits are provided in the sampling piece, the conduits are connected with a vacuum tube and a filter rod, first support blocks are fixedly connected to positions close to the uniformly distributed conduits in the sampling piece, fixed blocks are fixedly connected to positions close to adjacent first support blocks on the transmission rod, a first elastic ring is fixedly connected to a side of the fixed block close to the adjacent first support block, a first extrusion block is fixedly connected to a side of the first elastic ring close to the adjacent first support block, the first extrusion block and the adjacent first support block are both extruded and matched with the adjacent conduit for blocking the conduit.

[0006] Furthermore, a limiting rod is fixedly connected to one side of the transmission rod close to the mounting frame, and a limiting groove which is mirror-distributed and used for adjacent limiting rods to slide is provided in the sampling member, and the limiting groove is limitedly matched with the adjacent limiting rods, and an annular inclined surface is provided on one side of the positioning member close to the mounting frame, and the limiting rod is squeezed and matched with the annular inclined surface.

[0007] Furthermore, the extrusion member is threadedly connected to the positioning member for adjusting the sampling depth.

[0008] Furthermore, a blocking piece is sealingly and slidably connected to a position of the sampling piece close to the mounting frame, and an external through hole communicating with the sample storage groove is provided on the sampling piece, and the external through hole is blocked and cooperated with the blocking piece.

[0009] Furthermore, a mirror-distributed elastic member is fixedly connected to a position in the sampling member away from the mounting frame, and the elastic member is limitedly matched with the adjacent transmission rod. A rubber ring is sleeved on a position of the transmission rod close to the adjacent elastic member, and the rubber ring is used to increase the stability of the limited matching between the transmission rod and the adjacent elastic member.

[0010] Furthermore, the mounting frame is fixedly connected with a mirror-distributed blocking rod, an annular cavity is arranged in the sampling piece near the blocking piece, an inner through hole connecting the annular cavity with the sample storage groove is arranged in the sampling piece, a one-way valve is installed in the inner through hole, and a mirror-distributed guide hole is arranged in the sampling piece, the guide hole is connected with the annular cavity, and the guide hole cooperates with the adjacent blocking rod for sealing.

[0011] Furthermore, it also includes evenly distributed connecting parts, the connecting parts are fixedly connected to the sampling parts, the connecting parts are communicated with the adjacent conduits, the positions of the sampling parts close to the evenly distributed connecting parts are fixedly connected with second support blocks, the positions of the transmission rods close to the adjacent second support blocks are connected with sliding blocks in a limited sliding manner, the sliding block is fixedly connected to a second elastic ring on one side close to the adjacent second support block, the second elastic ring is fixedly connected to a second extrusion block on one side close to the adjacent second support block, and the second extrusion block and the adjacent second support block are both extruded and matched with the adjacent conduits.

[0012] Furthermore, the position where the connecting member communicates with the adjacent conduit is located between the adjacent first supporting block and the adjacent second supporting block.

[0013] Furthermore, positions on the sampling member close to the evenly distributed filter rods are all limitedly slidably connected with folding pieces, and the folding pieces are fixedly connected to the adjacent transmission rods for shielding the adjacent filter rods.

[0014] Furthermore, the filter rod is connected to the sampling piece in a limited sliding manner, a spring is fixed between the filter rod and the sampling piece, the filter rod is squeezed and matched with the adjacent folding pieces, and the sampling piece is provided with accommodating grooves near positions of the evenly distributed folding pieces, and the accommodating grooves are used to accommodate the adjacent filter rods.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: the present invention combines sediment sampling with pore water sampling to achieve synchronous stratified sampling of the two, completes sampling of sediment and pore water at the same location, and enables better correspondence between pore water and sediment within the same depth, thereby reducing the difference between the test results and the actual situation.

[0016] The elastic member bends under its own elastic action to support the bottom mud in the sample storage tank, making it convenient to completely take out the bottom mud in the sample storage tank.

[0017] By transporting the stored gas to the lower part of the sampling piece, the negative pressure generated at the lower part of the sampling piece when it moves upward is reduced, the force required to pull the sampling piece upward is reduced, and the probability of the bottom mud in the sample storage tank falling due to the negative pressure is reduced.

[0018] Nitrogen is stored through the connector and discharged after the sampling piece moves down to the specified depth, which reduces the volume of air in the conduit, thereby reducing the probability of pore water oxidation and ensuring the accuracy of the test results.

[0019] The folding piece prevents adjacent filter rods from contacting bottom mud at other depths during the downward movement, thereby reducing the precision of pore water sampling at different depths and ensuring the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 It is a three-dimensional structural cross-sectional view of the sampling piece of the present invention;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the sampling piece, the extrusion piece and the positioning piece of the present invention;

[0023] Figure 4 The present invention is attached Figure 3 The enlarged view of point A in the middle;

[0024] Figure 5 The present invention is attached Figure 3 The enlarged view of point B in the middle;

[0025] Figure 6 The present invention is attached Figure 2 Enlarged view of point C in the middle;

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the sampling member, the elastic member and the blocking rod of the present invention;

[0027] Figure 8 It is a three-dimensional structural schematic diagram of the transmission rod, the connecting member and the sliding block of the present invention;

[0028] Fig. 9 It is a three-dimensional structural schematic diagram of the sampling member, the filter rod and the folding member of the present invention;

[0029] Fig.10 It is a schematic diagram of the three-dimensional structure of the transmission rod, the filter rod and the folding piece of the present invention.

[0030] Marked in the figure: 1-sampling piece, 101-sample storage groove, 2-extrusion piece, 3-positioning piece, 4-mounting frame, 5-transmission rod, 6-conduit, 7-vacuum tube, 8-filter rod, 9-first support block, 10-fixed block, 11-first elastic ring, 12-first extrusion block, 13-limiting rod, 131-limiting groove, 132-annular inclined surface, 14-sealing piece, 141-external through hole, 15-elastic piece, 16-rubber ring, 17-sealing rod, 18-annular cavity, 181-inner through hole, 182-guide hole, 19-connecting piece, 20-second support block, 21-sliding block, 22-second elastic ring, 23-second extrusion block, 24-folding piece, 241-accommodating groove. DETAILED DESCRIPTION

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0032] The water quality in the reservoir is monitored to know the relationship between the content of pollutants deposited at the bottom of the reservoir and the content of pollutants in the pore water at a certain depth. However, since the existing sediment sampling device and pore water sampling device are two independent individuals, the sediment and pore water need to be sampled separately, which makes it difficult for the sediment sampling site and the pore water sampling site to be in the same position, resulting in a difference between the final result and the actual situation.

[0033] Example 1: A smart pipe network monitoring system for smart water services, please refer to Figure 1-Figure 4, including a sampling piece 1, the cross section of the sampling piece 1 is a rhombus, and the lower part of the sampling piece 1 is set to a spike shape, which is convenient for inserting the sampling piece 1 into the bottom mud. A sample storage groove 101 is set in the middle and lower part of the sampling piece 1. The sample storage groove 101 is cylindrical, and the lower part of the sample storage groove 101 is sealed and slidably connected with an extrusion piece 2 and a positioning piece 3 in the upper and lower parts. There is a friction force between the extrusion piece 2 and the sampling piece 1, and the magnitude of the friction force is greater than the gravity of the extrusion piece 2. The extrusion piece 2 is threadedly connected with the positioning piece 3 to adjust the volume of the bottom mud sampling, thereby To adjust the depth of bottom mud and pore water sampling, the upper side of the sampling piece 1 is limited in upper and lower positions and is sealed and slidably connected with a mounting frame 4, which can be connected to an external mechanical arm or connecting rod by bolts (the mounting frame 4 is connected to the connecting rod by bolts in this article), aiming to drive the sampling piece 1 to penetrate into the bottom mud through the mounting frame 4, and the upper and lower limit sliding connections in the sampling piece 1 are two transmission rods 5 distributed in left and right mirror images, and a spring is fixed between the lower part of the transmission rod 5 and the sampling piece 1, and a plurality of uniformly distributed conduits 6 are arranged in the sampling piece 1, and the plurality of conduits 6 are arranged in a The duct 6 is distributed in a broken line shape, and the number of the ducts 6 can be changed according to the sampling depth (the number of the ducts 6 in this article is four, and at this time one transmission rod 5 corresponds to the upper and lower groups of ducts 6 and their related parts). The duct 6 is made of elastic rubber material and can be stretched and squeezed to a certain extent. The upper end of the duct 6 is connected with a vacuum tube 7. A shielding plate is provided at a position close to the vacuum tube 7 on the sampling piece 1. The shielding plate is used to shield the adjacent vacuum tube 7 to prevent external bottom mud from adhering to the vacuum tube 7. The lower end of the duct 6 is connected with a filter rod 8. The positions close to the four ducts 6 in the sampling piece 1 are fixedly connected with a first support block 9. The positions close to the two adjacent first support blocks 9 on the transmission rod 5 are fixedly connected with a fixed block 10. The fixed block 10 is fixedly connected to a side of the fixed block 10 close to the adjacent first support block 9. Initially, the first elastic ring 11 is in a compressed state. The first elastic ring 11 is fixedly connected to a side of the adjacent first support block 9. The first extrusion block 12 is fixedly connected to the first extrusion block 12 and the adjacent first support block 9 are extruded and matched with the adjacent duct 6 to block the duct 6.

[0034] Please refer to Figure 3 and Figure 5 The upper end of the transmission rod 5 is fixedly connected to the limit rod 13, and the transmission rod 5 is made of elastic metal. The upper part of the sampling piece 1 is provided with limit grooves 131 with left and right mirror distribution. The limit rod 13 slides in the adjacent limit grooves 131. The upper part of the limit groove 131 is provided with a step. The limit groove 131 is limitedly matched with the step of the adjacent limit rod 13. The upper side of the positioning piece 3 is provided with an annular inclined surface 132, and the limit rod 13 is squeezed and matched with the annular inclined surface 132.

[0035] Please refer to Figure 1 , Figure 2 and Figure 7The middle part of the upper side of the sampling piece 1 is sealed and slidably connected with a blocking piece 14, and the upper part of the sampling piece 1 is provided with an external through hole 141, which is connected to the upper side of the sample storage groove 101, and the external through hole 141 is blocked and matched with the blocking piece 14.

[0036] Please refer to Figure 2 and Figure 6 Two elastic members 15 are fixedly connected to the lower part of the sampling member 1 and are distributed in left and right mirror images. The elastic members 15 are initially in a power storage state. The elastic members 15 are made of elastic metal. In a free state, the lower part of the elastic member 15 is close to the direction of the central axis of the sampling member 1. The elastic member 15 is limitedly matched with the adjacent transmission rod 5. A rubber ring 16 is sleeved on the lower part of the transmission rod 5. The rubber ring 16 is used to increase the stability of the limited matching between the transmission rod 5 and the adjacent elastic member 15.

[0037] Please refer to Figure 7 The mounting frame 4 is fixedly connected with two blocking rods 17 which are distributed in left and right mirror images. The upper part of the sampling piece 1 is provided with an annular cavity 18. The upper part of the sampling piece 1 is provided with an inner through hole 181. The inner through hole 181 connects the left part of the lower side of the annular cavity 18 with the sample storage groove 101. A one-way valve which is connected from bottom to top is installed in the inner through hole 181 (the one-way valve is an existing part and is not shown in the drawings). The sampling piece 1 is provided with two guide holes 182 which are distributed in left and right mirror images. The upper part of the guide hole 182 is connected with the annular cavity 18. The lower end opening of the guide hole 182 faces the adjacent elastic piece 15 on the same side. The guide hole 182 is blocked and matched with the adjacent blocking rod 17.

[0038] When monitoring the water quality of a reservoir, the sampling personnel judge the depth of the sampling member 1 inserted into the bottom mud according to the depth to be sampled, and then change the overall thickness of the extrusion member 2 and the positioning member 3 by rotating the extrusion member 2 and the positioning member 3 in the opposite direction. After the adjustment is completed, the sampling personnel put the extrusion member 2 and the positioning member 3 into the sampling member 1, and make the extrusion member 2 located at the lower part of the sample storage tank 101 (relying on the friction between the extrusion member 2 and the sampling member 1, the extrusion member 2 is relatively stationary). The sampling personnel can fix the mounting frame 4 on the connecting rod by bolts, etc., and then the sampling personnel moves to the top of the sampling location, and uses the connecting rod to insert the device downward into the bottom mud. In the process of the sampling member 1 being inserted downward into the bottom mud, the bottom mud enters the sample storage tank 101, and at the same time, the bottom mud contacts the extrusion member 2. At this time, the extrusion member 2 and the positioning member 3 stop moving. As the sampling member 1 continues to move downward, the positioning member 3 squeezes the sample storage tank 1 The gas in 01 enters the annular cavity 18 through the one-way valve on the inner through hole 181. As the sampling piece 1 moves downward, the distance between the two limit rods 13 and the positioning piece 3 gradually decreases. Finally, the two limit rods 13 contact the annular inclined surface 132 and stop moving. Then the sampling piece 1 continues to move downward, and the limit rod 13 and the adjacent transmission rod 5 move upward relative to the sampling piece 1 and compress the spring adjacent to the transmission rod 5 until the limit rod 13 moves to the step of the adjacent limit groove 131. Under the guidance of the annular inclined surface 132, the limit rod 13 swings in the direction away from the central axis of the sample storage groove 101 and enters the step of the adjacent limit groove 131. At this time, the limit groove 131 limits the adjacent limit rod 13. At the same time, the upper part of the transmission rod 5 bends, and the upper side of the positioning piece 3 contacts the upper side of the sample storage groove 101. The sampling personnel stops moving the sampling piece 1 downward, and the sampling of the bottom mud is completed.

[0039] In the process of the transmission rod 5 moving upward relative to the sampling member 1, the transmission rod 5 drives the two adjacent fixed blocks 10 to move upward, and the fixed block 10 drives the adjacent first elastic ring 11 and the first extrusion block 12 to move upward, so that the first extrusion block 12 loses the corresponding relationship with the adjacent first support block 9. At this time, the first support block 9 and the adjacent first extrusion block 12 release the extrusion of the adjacent conduit 6, and the conduit 6 connects the adjacent vacuum tube 7 with the adjacent filter rod 8. Under the action of the negative pressure in the vacuum tube 7, the vacuum tube 7 extracts the pore water of the corresponding depth through the adjacent conduit 6 and the adjacent filter rod 8, and stores it in the vacuum tube 7. After waiting for a fixed time, the sampling of the pore water is completed.

[0040] During the upward movement of the transmission rod 5 relative to the sampling member 1, the transmission rod 5 drives the adjacent rubber ring 16 to move upward relative to the adjacent elastic member 15 (the elastic member 15 remains stationary during this process), and finally the transmission rod 5 loses contact with the adjacent elastic member 15, releasing the limit on the adjacent elastic member 15. At this time, under the action of its own elasticity, the lower part of the elastic member 15 swings toward the direction close to the central axis of the sample storage groove 101 and is inserted into the bottom mud. As the sampling member 1 continues to move downward, the sampling member 1 squeezes the two elastic members 15 inserted into the bottom mud, thereby increasing the bending angle of the elastic member 15, that is, the depth of the elastic member 15 inserted into the bottom mud increases, and the two elastic members 15 are used to provide support for the bottom mud in the sample storage groove 101, so that the bottom mud in the sample storage groove 101 can be completely removed.

[0041] After completing the sampling of the bottom mud and pore water, the sampling personnel pull the mounting frame 4 and the sampling piece 1 upwards through the connecting rod. Since the bottom mud fits tightly against the sampling piece 1, when the sampling piece 1 is pulled upwards, negative pressure is generated at the bottom of the sampling piece 1, hindering the upward movement of the sampling piece 1, making it difficult to pull out the sampling piece 1, thereby causing the mounting frame 4 to drive the two blocking rods 17 to move upwards relative to the sampling piece 1, so that the blocking rods 17 release the blockage of the adjacent guide holes 182. At this time, the gas accumulated in the annular cavity 18 flows downwards through the two guide holes 182, and finally enters the bottom of the sampling piece 1, and reduces the negative pressure generated at the bottom of the sampling piece 1 when it moves upwards, thereby reducing the force required to pull the sampling piece 1 upwards, and at the same time reducing the probability of the bottom mud in the sample storage tank 101 falling due to the negative pressure.

[0042] After pulling out the sampling piece 1, the sampling personnel releases the connection between the connecting rod and the mounting frame 4, and moves the four shielding plates down in turn to remove the shielding of the four vacuum tubes 7. Then the sampling personnel releases the connection between the vacuum tube 7 and the adjacent conduit 6, and takes out the vacuum tube 7 to complete the collection of the pore water. Then the sampling personnel cleans the conduit 6 and the filter rod 8.

[0043] After removing the vacuum tube 7, the sampling personnel reset the two elastic members 15 and keep them in the reset state, and then remove the blocking member 14. At this time, the sample storage tank 101 is connected to the outside world through the external through hole 141. The sampling personnel tilt the sampling member 1, and the bottom mud in the sample storage tank 101 gradually moves down under the gravity of itself and the extrusion member 2 and the positioning member 3. During the downward movement of the bottom mud, the positioning member 3 moves down, and the limiting rod 13 gradually slides along the side of the positioning member 3 to the annular inclined surface 132. Under the reset action of the elastic force of the transmission rod 5 itself, the transmission rod 5 drives the adjacent limiting rod 13 to swing and move out of the step of the adjacent limiting groove 131. The limiting groove 131 releases the limiting effect on the adjacent limiting rod 13, and then the transmission rod 5 moves downward under the action of the adjacent spring, and drives the adjacent rubber ring 16 to be inserted into the adjacent elastic member 15. At this time, the sampler releases the contact with the elastic member 15, and the bottom mud gradually moves downward and is finally discharged from the sample storage groove 101. The sampler then collects the bottom mud. If the bottom mud is difficult to discharge under the action of gravity, the sampler can pass a thin rod through the external through hole 141 and squeeze the positioning member 3 downward to speed up the discharge of the bottom mud in the sample storage groove 101. After the bottom mud is discharged, the sampler cleans the sampling member 1 and reinserts the blocking member 14 into the external through hole 141.

[0044] During the downward movement of the transmission rod 5, the transmission rod 5 drives the two adjacent fixed blocks 10 to move downward, and the fixed blocks 10 drive the adjacent first elastic ring 11 and the adjacent first extrusion block 12 to move downward, so that the first extrusion block 12 re-extrudes the adjacent catheter 6. Then the sampling personnel connect the new vacuum tube 7 to the adjacent catheter 6 and move the shielding plate up and reset.

[0045] When sampling pore water, due to the presence of air in the sampling device, the pore water entering the sampling device undergoes an oxidation reaction after coming into contact with the air, resulting in a change in the content of substances in the pore water.

[0046] Example 2: Based on Example 1, please refer to Figure 8, and further comprises four evenly distributed connecting members 19 (the number of the connecting members 19 is determined according to the number of the conduits 6, and can also be appropriately changed), the shielding plate also shields the adjacent connecting members 19, the connecting members 19 are fixedly connected to the sampling member 1, an inert gas (nitrogen is selected here) is stored in the connecting members 19, the connecting members 19 are communicated with the adjacent conduits 6 (the conduits 6 are three-way pipes), the positions near the evenly distributed four connecting members 19 in the sampling member 1 are all fixedly connected with the second support blocks 20, and the positions of the transmission rods 5 near the adjacent second support blocks 20 are all upper and lower limit slides A sliding block 21 is dynamically connected, and a second elastic ring 22 is fixedly connected to the side of the sliding block 21 close to the adjacent second support block 20. The second elastic ring 22 has the same structure as the first elastic ring 11. A second extrusion block 23 is fixedly connected to the side of the second elastic ring 22 close to the adjacent second support block 20. The position where the connecting piece 19 is connected to the adjacent conduit 6 is located between the adjacent first support block 9 and the adjacent second support block 20. The second extrusion block 23 and the adjacent second support block 20 are both extruded and matched with the adjacent conduit 6, which is used to block the adjacent conduit 6 so that the nitrogen is temporarily stored in the conduit 6.

[0047] Please refer to Figure 8-Figure 10 The positions of the sampling member 1 close to the four evenly distributed filter rods 8 are all connected with folding members 24 in an upper and lower limit sliding manner. The folding members 24 are fixedly connected to the adjacent transmission rods 5 for shielding the adjacent filter rods 8.

[0048] Please refer to Figure 8-Figure 10 The filter rod 8 is connected to the sampling piece 1 by limited sliding, and there is a gap between the two. An initial force storage spring is fixed between the upper oblique side of the filter rod 8 and the sampling piece 1. The filter rod 8 is squeezed and matched with the adjacent folding pieces 24. The sampling piece 1 is provided with accommodating grooves 241 at positions close to the four evenly distributed folding pieces 24. The accommodating grooves 241 are used to accommodate the adjacent filter rods 8.

[0049] When monitoring the water quality of a reservoir by bottom sediment sampling and pore water sampling, before placing the sampling member 1 in the water, the sampling personnel sequentially move down the four shielding plates and inject nitrogen into the connecting member 19 through a syringe, and make the volume of the injected nitrogen less than half of the volume of the vacuum tube 7. Then the sampling personnel move up the shielding plates and reset them, and the nitrogen in the connecting member 19 enters the middle of the adjacent conduit 6. Then the steps of Example 1 are repeated to insert the sampling member 1 into the bottom sediment. In the process of the transmission rod 5 moving up relative to the sampling member 1, the transmission rod 5 first drives the two adjacent fixed blocks 10 to move up, so that the first squeezing block 12 and the adjacent first supporting block 9 release the squeezing of the adjacent conduit 6, so that the connecting member 19 passes through the adjacent conduit. The tube 6 is connected with the adjacent filter rod 8. At this time, the nitrogen in the connecting piece 19 is discharged through the adjacent conduit 6 and the adjacent filter rod 8, and the nitrogen is discharged from the sampling piece 1 through the gap between the filter rod 8 and the sampling piece 1, and the air initially accumulated in the adjacent conduit 6 and the adjacent filter rod 8 is discharged. As the transmission rod 5 continues to move upward relative to the sampling piece 1, the transmission rod 5 drives the two adjacent sliding blocks 21 to move upward, and the sliding block 21 drives the adjacent second elastic ring 22 and the adjacent second extrusion block 23 to move upward, so that the second extrusion block 23 and the adjacent second support block 20 release the extrusion of the adjacent conduit 6 (at this time, the limit rod 13 is limited by the adjacent limit groove 131). At this time, the vacuum tube 7 collects pore water through the adjacent conduit 6 and the adjacent filter rod 8.

[0050] When the transmission rod 5 moves upward relative to the sampling piece 1, the transmission rod 5 drives the two adjacent folding pieces 24 to move upward until the transmission rod 5 moves upward to the extreme position (that is, when the limit groove 131 limits the adjacent limit rod 13), the folding piece 24 releases the squeezing of the adjacent filter rod 8, and then the filter rod 8 extends out of the sampling piece 1 under the action of its adjacent spring (during the movement of the filter rod 8, the filter rod 8 stretches the adjacent conduit 6) and is inserted into the bottom mud to pass over the bottom mud in contact with the outside of the sampling piece 1 (in the process of the sampling piece 1 being inserted into the bottom mud, the sampling piece 1 contacts the bottom mud of different depths in turn, so that the content of the substance in the bottom mud in contact with the sampling piece 1 is no longer authoritative), reducing the influence of the bottom mud of different depths on the pore water sampling.

[0051] After the pore water sampling is completed, the sampling personnel repeat the steps of Example 1 to pull the sampling piece 1 upward, and the sampling piece 1 drives the filter rod 8 to move upward. The filter rod 8 swings downward under the pressure of the bottom mud and finally enters the adjacent receiving groove 241. At the same time, the filter rod 8 drives the adjacent conduit 6 to bend, thereby reducing the squeezing force on the filter rod 8 when the sampling piece 1 moves upward, thereby reducing the probability of damage to the filter rod 8.

[0052] After the sampling piece 1 is pulled out, the steps of Example 1 are repeated to remove the vacuum tube 7, and the conduit 6 and the filter rod 8 are cleaned. Then the sampling personnel swing the four filter rods 8 to reset them. During the downward movement of the transmission rod 5, the transmission rod 5 first drives the adjacent first extrusion block 12 to move downward and cooperates with the adjacent first support block 9 to squeeze the adjacent conduit 6. Then the transmission rod 5 drives the adjacent second extrusion block 23 to move downward through the adjacent sliding block 21 and the adjacent second elastic ring 22. The second extrusion block 23 cooperates with the adjacent second support block 20 to squeeze the adjacent conduit 6. During the downward movement of the transmission rod 5, the transmission rod 5 drives the two adjacent folding pieces 24 to move downward and reset, and the folding pieces 24 contact the adjacent filter rod 8 again.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An intelligent pipe network monitoring system for smart water services, characterized in that: The invention comprises a sampling member (1), wherein a sample storage groove (101) is arranged inside the sampling member (1), an extrusion member (2) and a positioning member (3) are sealed and slidably connected inside the sample storage groove (101), a mounting frame (4) is limited and sealed and slidably connected to a side of the sampling member (1) away from the extrusion member (2), a transmission rod (5) distributed in a mirror image is limited and slidably connected inside the sampling member (1), a spring is fixedly connected between the transmission rod (5) and the sampling member (1), uniformly distributed conduits (6) are arranged inside the sampling member (1), the conduits (6) are connected to a vacuum tube (7) and a filter rod (8), and the sampling member (1) is fixedly connected to positions close to the evenly distributed conduits (6), and positions close to adjacent first support blocks (9) on the transmission rod (5) are fixedly connected to fixing blocks (10), and a first elastic ring (11) is fixedly connected to a side of the fixing block (10) close to the adjacent first support block (9), and a first extrusion block (12) is fixedly connected to a side of the first elastic ring (11) close to the adjacent first support block (9), and the first extrusion block (12) and the adjacent first support block (9) are both extruded and matched with the adjacent conduits (6) for blocking the conduits (6); A limiting rod (13) is fixedly connected to one side of the transmission rod (5) close to the mounting frame (4); limiting grooves (131) are arranged in the sampling member (1) and are used for the adjacent limiting rods (13) to slide; the limiting grooves (131) are in limiting cooperation with the adjacent limiting rods (13); an annular inclined surface (132) is arranged on one side of the positioning member (3) close to the mounting frame (4); and the limiting rods (13) are pressed and cooperated with the annular inclined surface (132).

2. The intelligent pipe network monitoring system for smart water services according to claim 1 is characterized in that: The extrusion piece (2) is threadably connected to the positioning piece (3) and is used to adjust the sampling depth.

3. The intelligent pipe network monitoring system for smart water services according to claim 1 is characterized in that: A blocking piece (14) is sealingly and slidably connected to a position of the sampling piece (1) close to the mounting frame (4); an external through hole (141) communicating with the sample storage groove (101) is provided on the sampling piece (1); the external through hole (141) is sealed and matched with the blocking piece (14).

4. The intelligent pipe network monitoring system for smart water services according to claim 3 is characterized by: A mirror-distributed elastic member (15) is fixedly connected to a position in the sampling member (1) away from the mounting frame (4); the elastic member (15) is in limited position cooperation with an adjacent transmission rod (5); a rubber ring (16) is sleeved on a position of the transmission rod (5) close to the adjacent elastic member (15); the rubber ring (16) is used to increase the stability of the limited position cooperation between the transmission rod (5) and the adjacent elastic member (15).

5. The intelligent pipe network monitoring system for smart water services according to claim 4 is characterized in that: The mounting frame (4) is fixedly connected with a blocking rod (17) in a mirror-image distribution; an annular cavity (18) is arranged in the sampling member (1) at a position close to the blocking member (14); an inner through hole (181) is arranged in the sampling member (1) for connecting the annular cavity (18) with the sample storage groove (101); a one-way valve is installed in the inner through hole (181); a flow guide hole (182) in a mirror-image distribution is arranged in the sampling member (1); the flow guide hole (182) is connected with the annular cavity (18); and the flow guide hole (182) is blocked and cooperated with the adjacent blocking rod (17).

6. The intelligent pipe network monitoring system for smart water services according to claim 5 is characterized by: The device further comprises evenly distributed connecting pieces (19), the connecting pieces (19) being fixedly connected to the sampling piece (1), the connecting pieces (19) being communicated with the adjacent conduits (6), the positions of the evenly distributed connecting pieces (19) in the sampling piece (1) being fixedly connected with second support blocks (20), the positions of the transmission rods (5) being close to the adjacent second support blocks (20) being limitedly slidably connected with sliding blocks (21), the side of the sliding block (21) close to the adjacent second support block (20) being fixedly connected with a second elastic ring (22), the side of the second elastic ring (22) close to the adjacent second support block (20) being fixedly connected with a second extrusion block (23), the second extrusion block (23) and the adjacent second support block (20) being extrusion-matched with the adjacent conduits (6).

7. The intelligent pipe network monitoring system for smart water services according to claim 6 is characterized by: The position where the connecting piece (19) communicates with the adjacent conduit (6) is located between the adjacent first support block (9) and the adjacent second support block (20).

8. The intelligent pipe network monitoring system for smart water services according to claim 6 is characterized by: Positions on the sampling member (1) close to the evenly distributed filter rods (8) are all limitedly slidably connected with folding members (24), and the folding members (24) are fixedly connected to the adjacent transmission rods (5) for shielding the adjacent filter rods (8).

9. The intelligent pipe network monitoring system for smart water services according to claim 8, characterized in that: The filter rod (8) is connected to the sampling member (1) in a limited sliding manner, a spring is fixedly connected between the filter rod (8) and the sampling member (1), the filter rod (8) is pressed and matched with the adjacent folding member (24), and the sampling member (1) is provided with a receiving groove (241) at a position close to the evenly distributed folding members (24), and the receiving groove (241) is used to receive the adjacent filter rod (8).

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