A device for capturing settled particles in water

Abstract

The present application discloses a device for capturing settled particles in a water body, and relates to the field of environmental science and technology. The method comprises: a tension unit is connected to one end of a first tension rope, the other end of the first tension rope passes through a limit ring arranged on a sediment block and is connected to one end of a sediment trap, the other end of the sediment trap is connected to one end of a second tension rope, and the other end of the second tension rope is connected to a recovery float; a ball plug is arranged on the first tension rope between the sediment trap and the limit ring; when it is necessary to collect a sample of settled particles in a water body, the tension unit provides tension to the first tension rope, driving the ball plug to fit with the limit ring; when it is necessary to recover the sediment trap, the tension unit stops releasing tension, and pulls the recovery float to drive the second tension rope to lift the sediment trap out of the water. The present application replaces the automatic recovery device of the sediment trap through a combination of a tension unit, a nylon rope and a ball plug, and solves the problems of high cost of the recovery device and high sampling cost.

Description

Technical Field

[0001] The present application relates to the field of environmental science and technology, and in particular to a device for capturing settled particles in water. Background Art

[0002] Water particles are important carriers of communication between the overlying water and the benthic biosphere in the aquatic environment. They not only contain organic debris, plankton remains, dead microorganisms, etc., but also often become important carriers of pollutants in the water. The sedimentation process of particles is an important link in the biogeochemical cycle of substances. Therefore, capturing settled particles has become an important basis for studying the circulation of water substances and the migration and transformation of pollutants. The settled particle capture device is an in-situ device for collecting settled particles in the water. Although the capture devices currently on the market have a high capture efficiency, the devices are bulky, large in size and expensive. When they are deployed and recovered, they often need to be completed with the help of winches on large ships, and they are mostly fixed on anchors. It is usually impossible to achieve multi-point synchronous monitoring, and the accuracy of collecting sediments is still controversial.

[0003] The sediment traps described above are usually relatively complex in design and structure and are not easy to carry. The automatic recovery device of the sediment trap is expensive. The sediment traps are often dependent on anchor chain systems and counterweight systems when deployed, and rely on GPS positioning and acoustic releasers when recovered, resulting in high costs for the sampling process of settled particles in the water body. In addition, in water environments with large water level fluctuations, the recovery process is usually relatively time-consuming, and the counterweight system is usually left on the bottom of the water after recovery, which also increases the cost of deploying and recovering the device. Summary of the invention

[0004] The purpose of the present application is to provide a device for capturing settled particles in a water body. The present application replaces the automatic recovery device of the sediment trap through a combination of a tension unit, a nylon rope and a ball plug, thereby solving the problems of high cost of the recovery device and high sampling cost.

[0005] To achieve the above objectives, this application provides the following solutions.

[0006] The present application provides a device for capturing settled particles in a water body, comprising: a tension unit, a first tension rope, a sedimentation block, a limiting ring, a ball plug, a sediment trap, a second tension rope and a recovery float; the tension unit is connected to one end of the first tension rope, the other end of the first tension rope passes through the limiting ring arranged on the sedimentation block and is connected to one end of the sediment trap, the other end of the sediment trap is connected to one end of the second tension rope, and the other end of the second tension rope is connected to the recovery float; the ball plug is arranged on the first tension rope between the sediment trap and the limiting ring; when it is necessary to collect a sample of settled particles in a water body, the tension unit provides tension to the first tension rope to drive the ball plug to fit with the limiting ring; when it is necessary to recover the sediment trap, the tension unit stops releasing the tension, pulls the recovery float to drive the second tension rope to lift the sediment trap out of the water.

[0007] Optionally, the pulling unit specifically includes: a positioning float and an elastic rope; one end of the elastic rope is connected to the positioning float, and the other end of the elastic rope is connected to one end of the first tension rope; when it is necessary to collect a sample of settled particulate matter in a water body, the positioning float drives the elastic rope to provide tension, and drives the ball plug to fit with the limit ring through the first tension rope; when it is necessary to recover the sediment trap, disconnect the positioning float from one end of the elastic rope, connect one end of the elastic rope to the towing rope, pull the recovery float to drive the second tension rope to lift the sediment trap out of water; when it is necessary to recover the sediment block, disconnect the positioning float from one end of the elastic rope, connect one end of the elastic rope to the towing rope, pull the recovery float until the towing rope is pulled out of water, and simultaneously pull both ends of the towing rope to lift the sediment block out of water.

[0008] Optionally, the tension unit specifically includes: a floating device and a rope retracting device; the rope retracting device is arranged on the floating device, and the rope retracting device is connected to one end of the first tension rope; when it is necessary to collect a sample of settled particulate matter in the water body, the rope retracting device provides tension to the first tension rope, and drives the ball plug to fit with the limit ring through the first tension rope; when it is necessary to recover the sediment trap, the rope retracting device releases the first tension rope, pulls the recovery float to drive the second tension rope to lift the sediment trap out of water; when it is necessary to recover the sediment block, the rope retracting device releases the first tension rope, pulls the recovery float until the first tension rope is pulled out of water, disconnects the connection between the rope retracting device and the first tension rope, and pulls the two ends of the first tension rope to lift the sediment block out of water.

[0009] Optionally, the device for capturing settled particles in water further includes: a pulley; the pulley is arranged on the sedimentation block, and the first tension rope is wound around the pulley.

[0010] Optionally, the sediment trap specifically includes: a sample collection system and a fixed outer frame; one end of the fixed outer frame is connected to the other end of the second tension rope, and the other end of the fixed outer frame is connected to the other end of the first tension rope; the sample collection system is arranged inside the fixed outer frame; the sample collection system is used to collect samples of settled particles in water bodies, and the fixed outer frame is used to fix the sample collection system.

[0011] Optionally, the sample collection system specifically includes: a honeycomb cover, a funnel-shaped cylinder, a drain valve, a drain pipe and a sample bottle; the honeycomb cover is arranged at the inlet of the funnel-shaped cylinder, the inlet of the funnel-shaped cylinder is connected to the titanium metal top plate of the fixed outer frame, and the outlet of the funnel-shaped cylinder is connected to one end of the drain pipe; the other end of the drain pipe is connected to the sample bottle, and the drain valve is arranged in the drain pipe; when obtaining a sample, the drain valve is closed, and after removing the sample bottle, the drain valve is opened to drain the water in the funnel-shaped cylinder.

[0012] Optionally, the fixed external frame specifically includes: a titanium metal top plate, a plurality of titanium metal rods and a titanium metal bottom plate; the upper surface of the titanium metal top plate and the lower surface of the titanium metal bottom plate are both provided with hanging rings; the hanging ring on the upper surface of the titanium metal top plate is connected to one end of the second tension rope, and the lower surface of the titanium metal top plate is connected to the sample collection system; one end of the plurality of titanium metal rods is connected to the lower surface of the titanium metal top plate, and the other end of the plurality of titanium metal rods is connected to the upper surface of the titanium metal bottom plate; the hanging ring of the titanium metal bottom plate is connected to the other end of the first tension rope.

[0013] Optionally, the first tension rope and the second tension rope are both nylon ropes.

[0014] Optionally, the diameter of the ball plug is larger than the diameter of the limiting ring.

[0015] Optionally, the drainage pipe is connected to the sample bottle via a thread.

[0016] According to the specific embodiments provided by the present application, the present application discloses the following technical effects: the present application replaces the automatic recovery device of the sediment trap through the combination of a tension unit, a nylon rope and a ball plug, thereby solving the problems of high cost of the recovery device and high sampling cost. The present application can repeatedly extract and replace the sediment trap through the cooperation of the tension unit and the recovery float, thereby improving the recovery efficiency of the sediment trap and further improving the sampling efficiency; through the cooperation of the tension unit and the recovery float, the sediment block can also be recovered, thereby reducing the recovery cost of the sediment block and reducing the pollution of the water body by the sediment blocks abandoned in the water body, thereby facilitating the fixed-point monitoring and large-scale deployment of the sediment capture device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A structural diagram of a device for capturing settled particles in water provided in an embodiment of the present application.

[0019] Figure 2 This is a structural diagram of the sample collection system provided in an embodiment of the present application.

[0020] Figure 3 A structural diagram of a fixed outer frame provided in an embodiment of the present application.

[0021] Figure 4 This is a structural diagram of the titanium metal top plate provided in an embodiment of the present application.

[0022] Figure 5 This is a structural diagram of the titanium metal base plate provided in an embodiment of the present application.

[0023] Figure numerals: sediment trap-1; tension unit-2; first tension rope-3; sedimentation block-4; limit ring-5; ball plug-6; second tension rope-7; recovery float-8; pulley-9; sample collection system-11; fixed outer frame-12; positioning float-21; elastic rope-22; honeycomb cover plate-111; funnel-shaped cylinder-112; drain valve-113; drain pipe-114; sample bottle-115; titanium metal top plate-121; titanium metal rod-122 and titanium metal bottom plate-123. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0026] like Figure 1 As shown, this embodiment provides a device for capturing settled particles in a water body, which specifically includes: a sediment trap 1, a tension unit 2, a first tension rope 3, a sedimentation block 4, a limit ring 5, a ball plug 6, a second tension rope 7 and a recovery float 8.

[0027] The tension unit 2 is connected to one end of the first tension rope 3, the other end of the first tension rope 3 passes through the limit ring 5 set on the sediment block 4 and is connected to one end of the sediment trap 1, the other end of the sediment trap 1 is connected to one end of the second tension rope 7, and the other end of the second tension rope 7 is connected to the recovery float 8; the ball plug 6 is set on the first tension rope 3 between the sediment trap 1 and the limit ring 5; when it is necessary to collect the sedimentation particle sample of the water body, the tension unit 2 provides tension to the first tension rope 3, driving the ball plug 6 to fit with the limit ring 5; when it is necessary to recover the sediment trap 1, the tension unit 2 stops releasing the tension, pulls the recovery float 8 to drive the second tension rope 7 to lift the sediment trap 1 out of the water. The water body is the water body of the reservoir.

[0028] Furthermore, the device for capturing settled particles in water also includes: a pulley 9.

[0029] The pulley 9 is arranged on the sedimentation block 4 , and the first tension rope 3 is wound around the pulley 9 .

[0030] Furthermore, the first tension rope 3 and the second tension rope 7 are both nylon ropes.

[0031] Furthermore, the diameter of the ball plug 6 is greater than the diameter of the limiting ring 5 .

[0032] Furthermore, the sediment trap 1 specifically comprises: a sample collection system 11 and a fixed outer frame 12;

[0033] One end of the fixed outer frame 12 is connected to the other end of the second tension rope 7, and the other end of the fixed outer frame 12 is connected to the other end of the first tension rope 3; the sample collection system 11 is arranged inside the fixed outer frame 12; the sample collection system 11 is used to collect samples of settled particles in the water body, and the fixed outer frame 12 is used to fix the sample collection system 11.

[0034] like Figure 2 As shown, the sample collection system 11 specifically includes: a honeycomb cover plate 111, a funnel-shaped cylinder 112, a drain valve 113, a drain pipe 114 and a sample bottle 115; the honeycomb cover plate 111 is arranged at the entrance of the funnel-shaped cylinder 112, the entrance of the funnel-shaped cylinder 112 is connected to the titanium metal top plate 121 of the fixed outer frame 12, and the outlet of the funnel-shaped cylinder 112 is connected to one end of the drain pipe 114; the other end of the drain pipe 114 is connected to the sample bottle 115, and the drain valve 113 is arranged in the drain pipe 114; when obtaining a sample, the drain valve 113 is closed, and after removing the sample bottle 115, the drain valve 113 is opened to drain the water in the funnel-shaped cylinder 112. The material of the sample collection system 11 is polytetrafluoroethylene.

[0035] Furthermore, the drainage pipe 114 is connected to the sample bottle 115 via threads.

[0036] Optionally, the honeycomb cover is used to prevent water vortex from interfering with sample collection and improve the capture efficiency of the funnel-shaped cylinder 112.

[0037] Optionally, the diameter of the funnel-shaped cylinder 112 is 150 mm and the length is 450 mm. The ratio of the diameter to the length of the funnel-shaped cylinder 112 is 1:3. Such a ratio can reduce the flow velocity effect of the capture process and ensure that the capture efficiency is maximized while the sediment trap 1 is miniaturized and portable.

[0038] Optionally, a circular slot is further provided on the top of the funnel-shaped cylinder 112 to place the honeycomb cover plate 111 , and the outer extension of the circular slot has four screw holes for fixing to the outer frame 12 .

[0039] Optionally, the drain valve 113 is also used to prevent the water in the funnel-shaped cylinder 112 from flushing the particles in the sample bottle 115 when extracting the sample bottle 115, thereby preventing the sample from being contaminated.

[0040] Optionally, the lower end of the drainage pipe 114 is engraved with threads, and the sample bottle 115 can be connected through the threads to facilitate the removal and placement of the sample bottle 115.

[0041] like Figure 3-Figure 5As shown, the fixed outer frame 12 specifically includes: a titanium metal top plate 121, a plurality of titanium metal rods 122 and a titanium metal bottom plate 123; the upper surface of the titanium metal top plate 121 and the lower surface of the titanium metal bottom plate 123 are both provided with hanging rings; the hanging ring on the upper surface of the titanium metal top plate 121 is connected to one end of the second tension rope 7, and the lower surface of the titanium metal top plate 121 is connected to the sample collection system 11; one end of the plurality of titanium metal rods 122 is connected to the lower surface of the titanium metal top plate 121, and the other end of the plurality of titanium metal rods 122 is connected to the upper surface of the titanium metal bottom plate 123; the hanging ring of the titanium metal bottom plate 123 is connected to the other end of the first tension rope 3.

[0042] Optionally, the fixed outer frame 12 is made of titanium metal, with four titanium metal rods 122 on the side, which are connected to the titanium metal top plate 121 and the titanium metal bottom plate 123 by welding; the titanium metal top plate 121 is in a circular ring shape, with four screw holes for fixing to the funnel-shaped cylinder in the sample collection system 11, and the upper surface of the titanium metal top plate 121 has four hanging rings for connecting to the other end of the second tension rope 7.

[0043] Optionally, the titanium metal base plate 123 has multiple hollow designs to reduce water resistance during sample recovery, and the titanium metal base plate 123 is provided with a hanging ring for connecting with the ball plug 6.

[0044] Furthermore, the tension unit 2 specifically includes: a positioning float 21 and an elastic rope 22 .

[0045] One end of the elastic rope 22 is connected to the positioning float 21, and the other end of the elastic rope 22 is connected to one end of the first tension rope 3; when it is necessary to collect the sedimentation particle sample of the water body, the positioning float 21 drives the elastic rope 22 to provide tension, and drives the ball plug 6 to fit with the limit ring 5 through the first tension rope 3; when it is necessary to recover the sediment trap 1, the connection between the positioning float 21 and one end of the elastic rope 22 is disconnected, and one end of the elastic rope 22 is connected to the towing rope, and the recovery float 8 is pulled to drive the second tension rope 7 to lift the sediment trap 1 out of the water; when it is necessary to recover the sediment block 4, the connection between the positioning float 21 and one end of the elastic rope 22 is disconnected, and one end of the elastic rope 22 is connected to the towing rope, and the recovery float 8 is pulled until the towing rope is pulled out of the water, and the two ends of the towing rope are pulled at the same time to lift the sediment block 4 out of the water. The towing rope is a nylon rope.

[0046] Optionally, the recovery float 8 and the positioning float 21 are both made of PE material.

[0047] In actual application, the positioning float 21 always remains on the water surface as a monitoring point marker, which can overcome the maximum strain tension of the tension rope and the gravity of the tension rope itself. The buoyancy of the recovery float 8 should be greater than the sum of the gravity of the sediment trap 1, the ball plug 6 and the second tension rope 7, and the recovery float 8 can sink to the bottom of the water; the recovery float 8 and the positioning float 21 must satisfy the following relationship: the buoyancy provided by the positioning float 21> the buoyancy provided by the recovery float 8. The elastic rope 22 is made of nylon rubber band and should always be kept in a stretched state so that the sediment trap 1 obtains a tension and is fixed to the bottom of the water body; the stretchable length of the elastic rope 22 needs to be considered in combination with the fluctuation amplitude of the reservoir water level. The stretching length of the elastic rope 22 is greater than the maximum fluctuation amplitude of the reservoir. On the one hand, it is used to overcome the stretching caused by the horizontal fluctuation of the water surface, and on the other hand, it can cope with the elastic unloading caused by the long-term stretching of the elastic rope 22. When sampling is required, the two ends of the first tension rope 3 are passed through the rollers and the limit ring 5 on the sedimentation block 4, and according to the water depth, the ball plug 6, the sediment trap 1 and the recovery float 8 are connected to one end of the limit ring 5, and the end of the pulley 9 is connected to a sufficiently long elastic rope 22, and then the sedimentation block 4 is dropped and deposited on the bottom of the water. By adjusting the length of the elastic rope 22, the elastic rope 22 is kept in a sufficiently stretched state, and then connected to the positioning float 21. When it is necessary to recover the sample, by disconnecting the connection between the elastic rope 22 and the positioning float 21, the recovery float 8 will float to the surface due to sufficient buoyancy, and then the sampling equipment is pulled out and the sampling bottle is replaced. When disconnecting the connection between the elastic rope 22 and the positioning float 21, a towing rope or a small float that can overcome the rope gravity can be connected to the end of the elastic rope 22, so that after the sample is recovered, the elastic rope 22 can float up, and then the tension state of the elastic rope 22 is adjusted and hung on the positioning float 21 to start the next sampling monitoring. After all sampling and monitoring are completed, the elastic rope 22 can be replaced with a nylon rope, and the sediment block 4 can be salvaged in conjunction with external lifting equipment to avoid its potential harm to the water environment.

[0048] Optionally, the ball plug 6 is made of solid rubber material, and the diameter of the ball plug 6 is larger than the diameter of the ring on the sedimentation block 4. The ball plug 6 is used to prevent the sediment trap 1 from tilting at the bottom of the water when the first tension rope 3 is stretched.

[0049] Optionally, the sedimentation block 4 is made of stainless steel to prevent it from being washed away due to excessive water flow when the reservoir is released. A roller skate and a limit ring 5 are set on the top of the sedimentation block 4. The roller skate is used to provide resistance during the pulling process of the first tension rope 3. The outside of the roller skate should be a closed shell, and the first tension rope 3 passes through the hollow part in the middle to prevent the rope from detaching from the roller skate.

[0050] As another optional embodiment, the tension unit 2 specifically includes: a floating device and a rope retracting device; the rope retracting device is arranged on the floating device, and the rope retracting device is connected to one end of the first tension rope 3; when it is necessary to collect a sample of settled particulate matter in the water body, the rope retracting device provides tension to the first tension rope 3, and drives the ball plug 6 to fit with the limit ring 5 through the first tension rope 3; when it is necessary to recover the sediment trap 1, the rope retracting device releases the first tension rope 3, pulls the recovery float 8 to drive the second tension rope 7 to lift the sediment trap 1 out of the water; when it is necessary to recover the sediment block 4, the rope retracting device releases the first tension rope 3, pulls the recovery float 8, until the first tension rope 3 is pulled out of the water, disconnects the rope retracting device from the first tension rope 3, and pulls the two ends of the first tension rope 3 to lift the sediment block 4 out of the water.

[0051] This application replaces the automatic recovery device of the sediment trap through the combination of a tension unit, a nylon rope and a ball plug, solving the problems of high cost of the recovery device and high sampling cost. This application can repeatedly extract and replace the sediment trap through the cooperation of the tension unit and the recovery float, thereby improving the recovery efficiency of the sediment trap and further improving the sampling efficiency; through the cooperation of the tension unit and the recovery float, the sediment block can also be recovered, reducing the recovery cost of the sediment block, and reducing the pollution of the water body by the sediment blocks abandoned in the water body, which is convenient for the fixed-point monitoring and large-scale deployment of the sediment capture device.

[0052] The device for capturing settled particles in water bodies of the present application is light, portable, inexpensive, and can be deployed in batches; the device for capturing settled particles in water bodies of the present application can realize long-term fixed-point observation of the sediment trap, solving the problem of high time cost of device recovery due to large fluctuations in reservoir water levels, and also avoiding the potential threat of sediment blocks left in the water body to the water environment.

[0053] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A device for capturing settled particles in water, characterized in that: The water body sedimentation particle capture device comprises: a sediment capture device, a tension unit, a first tension rope, a sedimentation block, a limit ring, a ball plug, a second tension rope and a recovery float; The tension unit is connected to one end of the first tension rope, the other end of the first tension rope passes through a limiting ring arranged on the sedimentation block and is connected to one end of the sediment trap, the other end of the sediment trap is connected to one end of the second tension rope, and the other end of the second tension rope is connected to the recovery float; the ball plug is arranged on the first tension rope between the sediment trap and the limiting ring; when it is necessary to collect samples of settled particles in the water body, the tension unit provides tension to the first tension rope to drive the ball plug to fit with the limiting ring; when it is necessary to recover the sediment trap, the tension unit stops releasing the tension, pulls the recovery float to drive the second tension rope to lift the sediment trap out of the water.

2. The device for capturing settled particles in water according to claim 1, characterized in that: The pulling force unit specifically includes: a positioning float and an elastic rope; One end of the elastic rope is connected to the positioning float, and the other end of the elastic rope is connected to one end of the first tension rope; when it is necessary to collect samples of settled particulate matter in the water body, the positioning float drives the elastic rope to provide tension, and drives the ball plug to fit with the limit ring through the first tension rope; when it is necessary to recover the sediment trap, the connection between the positioning float and one end of the elastic rope is disconnected, and one end of the elastic rope is connected to the towing rope, and the recovery float is pulled to drive the second tension rope to lift the sediment trap out of the water; when it is necessary to recover the sediment block, the connection between the positioning float and one end of the elastic rope is disconnected, and one end of the elastic rope is connected to the towing rope, and the recovery float is pulled until the towing rope is pulled out of the water, and the two ends of the towing rope are pulled at the same time to lift the sediment block out of the water.

3. The device for capturing settled particles in water according to claim 1, characterized in that: The pulling unit specifically includes: a floating device and a rope retracting device; The rope retracting device is arranged on the floating device, and the rope retracting device is connected to one end of the first tension rope; when it is necessary to collect a sample of settled particles in the water body, the rope retracting device provides tension to the first tension rope, and drives the ball plug to fit with the limit ring through the first tension rope; when it is necessary to recover the sediment trap, the rope retracting device releases the first tension rope, pulls the recovery float to drive the second tension rope to lift the sediment trap out of the water; when it is necessary to recover the sediment block, the rope retracting device releases the first tension rope, pulls the recovery float until the first tension rope is pulled out of the water, disconnects the rope retracting device from the first tension rope, and pulls the two ends of the first tension rope to lift the sediment block out of the water.

4. The device for capturing settled particles in water according to claim 1, characterized in that: The water body settling particle capture device further comprises: a pulley; The pulley is arranged on the deposition block, and the first tension rope is wound around the pulley.

5. The device for capturing settled particles in water according to claim 1, characterized in that: The sediment trap specifically comprises: a sample collection system and a fixed outer frame; One end of the fixed outer frame is connected to the other end of the second tension rope, and the other end of the fixed outer frame is connected to the other end of the first tension rope; the sample collection system is arranged inside the fixed outer frame; the sample collection system is used to collect samples of settled particles in water bodies, and the fixed outer frame is used to fix the sample collection system.

6. The device for capturing settled particles in water according to claim 5, characterized in that: The sample collection system specifically comprises: a honeycomb cover plate, a funnel-shaped cylinder, a drain valve, a drain pipe and a sample bottle; The honeycomb cover plate is arranged at the entrance of the funnel-shaped cylinder, the entrance of the funnel-shaped cylinder is connected to the titanium metal top plate of the fixed outer frame, and the outlet of the funnel-shaped cylinder is connected to one end of the drainage pipe; the other end of the drainage pipe is connected to the sample bottle, and the drain valve is arranged in the drainage pipe; when obtaining a sample, the drain valve is closed, and after removing the sample bottle, the drain valve is opened to drain the water in the funnel-shaped cylinder.

7. The device for capturing settled particles in water according to claim 5, characterized in that: The fixed outer frame specifically comprises: a titanium metal top plate, a plurality of titanium metal rods and a titanium metal bottom plate; The upper surface of the titanium metal top plate and the lower surface of the titanium metal bottom plate are both provided with hanging rings; The hanging ring on the upper surface of the titanium metal top plate is connected to one end of the second tension rope, and the lower surface of the titanium metal top plate is connected to the sample collection system; one end of the multiple titanium metal rods is connected to the lower surface of the titanium metal top plate, and the other end of the multiple titanium metal rods is connected to the upper surface of the titanium metal bottom plate; the hanging ring of the titanium metal bottom plate is connected to the other end of the first tension rope.

8. The device for capturing settled particles in water according to claim 1, characterized in that: The first tension rope and the second tension rope are both nylon ropes.

9. The device for capturing settled particles in water according to claim 1, characterized in that: The diameter of the ball plug is greater than the diameter of the limiting ring.

10. The device for capturing settled particles in water according to claim 6, characterized in that: The drainage pipe is connected to the sample bottle via threads.

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