Suspended buoy for hydrologic monitoring

Abstract

The invention discloses a suspended buoy for hydrological monitoring. The suspended buoy comprises a first floating body, a connecting block, a water quality monitor, a mounting structure, a memory and a second floating body, a connecting block is arranged at the bottom of the first floating body, an anchor chain is fixedly connected to the bottom of the connecting block, and a mounting structure used for being connected with the connecting block is arranged in the first floating body; the water quality monitor is arranged on the connecting block; clamping grooves which are uniformly distributed are formed in the surface of the connecting block and used for being in butt joint with a mounting structure; a memory for storing data is arranged in the connecting block, second floating bodies which are uniformly distributed are arranged at the top of the connecting block, and grooves matched with the second floating bodies are formed in the bottom of the first floating body. According to the invention, the problem of monitoring data loss caused by the fact that the suspended buoy is easily washed away when sea surface waves are large in the prior art can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of suspended buoy, in particular to a suspended buoy for hydrological monitoring. BACKGROUND

[0002] Hydrological monitoring refers to a complex and comprehensive system engineering of monitoring, measuring, analyzing and early warning of the spatio-temporal distribution and variation law of water in nature through scientific methods. There are many types of hydrological monitoring suspended buoys, among which the marine buoy is mainly composed of an observation buoy anchored in the sea, and is an automatic observation station for marine hydrology, water quality and weather. The marine buoy is an unmanned, relatively highly automated and excellent marine meteorological and hydrological observation and telemetry equipment. It can collect the required basic data of marine hydrology and meteorology for deep sea scientific research, offshore oil development, port construction and construction in a long-term and continuous manner.

[0003] The basic application mode of the traditional hydrological monitoring suspended buoy is to place it in the water area to be monitored, so as to realize the monitoring of the water area. However, this type of suspended buoy has significant defects. On the one hand, since the monitoring process is in the water environment, it is necessary to avoid the detection equipment inside the suspended buoy from being affected by water to cause short circuit and other problems. On the other hand, it is also necessary to ensure good storage of monitoring data to prevent data loss. Although the sealing performance of the existing technology has been greatly improved, it can provide good protection for the internal data storage medium and data collector, and to some extent, it can alleviate the above problems. However, when there is a large wave in the water area, the suspended buoy is still prone to overturning, and the impact force on the suspended buoy after overturning will further increase, which can easily cause the anchor chain to break, so that the suspended buoy is washed away with the wave, and finally causes the loss of monitoring data.

[0004] Although the connecting mechanism provided in the prior art can connect the buoy body and the data collector, and can protect the cable between the buoy body and the data collector, there are still the following limitations: first, the device only protects the cable between the buoy and the data collector, but cannot protect the suspended buoy when the wave is large, which can easily cause the overturning of the suspended buoy; second, once the suspended buoy is impacted and the anchor chain is broken, the data cannot be recovered, which can easily cause data loss. SUMMARY

[0005] Therefore, the present application provides a suspended buoy for hydrological monitoring, which can solve the problem of loss of monitoring data caused by the suspended buoy being washed away when the wave on the sea is large in the prior art.

[0006] The technical scheme adopted by the present application is as follows: A suspended buoy for hydrological monitoring, comprising a first floating body, a connecting block, a water quality monitor, a mounting structure, a storage and a second floating body. The bottom of the first floating body is provided with a connecting block, the bottom of the connecting block is fixedly connected with an anchor chain, and the inside of the first floating body is provided with a mounting structure for being connected with the connecting block; and the water quality monitor is arranged on the connecting block. The surface of the connecting block is provided with uniformly distributed clamping grooves for being connected with the mounting structure; the inside of the connecting block is provided with a memory for storing data, and the top of the connecting block is provided with uniformly distributed second floating bodies, and the bottom of the first floating body is provided with grooves matched with the second floating bodies.

[0007] Further, the mounting structure comprises a mounting ring fixedly connected to the bottom of the first floating body, the inside of the mounting ring is provided with uniformly distributed receiving cavities, the inner wall of the receiving cavity is slidably connected with a clamping block along the radial direction of the mounting ring, one end of the clamping block penetrates out of the receiving cavity and extends to the inside of the corresponding clamping groove, and the bottom of the end of the clamping block close to the clamping groove is provided with an inclined surface.

[0008] Further, the end of the clamping block away from the clamping groove is fixedly connected with the inner wall of the receiving cavity through a third spring, the inside of the mounting ring is provided with connecting channels staggered with the receiving cavities, and two adjacent receiving cavities are connected through the connecting channels.

[0009] Further, the mounting structure further comprises a rotating ball, a mounting rod, a connecting rope, a sliding plate, a pull rod, a rotating rod and a second spring. The rotating ball is rotatably connected in the inside of the first floating body, the inside of the first floating body is provided with a connecting cavity below the rotating ball, the lower surface of the rotating ball extends to the inside of the connecting cavity and is fixedly connected with the mounting rod, and the lower end of the mounting rod is fixedly connected with the connecting rope. The inside of the first floating body is provided with a liquid storage cavity below the connecting cavity, the inner wall of the liquid storage cavity is slidably connected with the sliding plate, the top of the sliding plate is fixedly connected with the pull rod, the upper end of the pull rod penetrates into the inside of the connecting cavity, the top of the pull rod is hingedly connected with the rotating rod, the upper end of the rotating rod is fixedly connected with the other end of the connecting rope, and the second spring is fixedly connected between the top of the sliding plate and the inner wall of the liquid storage cavity. The inside of the first floating body is provided with uniformly distributed flow channels, one end of the flow channel is in communication with the liquid storage cavity, the other end of the flow channel is in communication with the connecting channel, and the inside of the liquid storage cavity is filled with hydraulic oil between the bottom of the sliding plate and the liquid storage cavity.

[0010] Further, the suspension mark further comprises an auxiliary structure arranged on the side of the first floating body; a plurality of adjusting cavities are uniformly arranged on the side of the first floating body in the circumferential direction; a pressing plate is slidably connected to the inner wall of the adjusting cavity; one side of the pressing plate is fixedly connected with an adjusting rod; the other end of the adjusting rod penetrates out of the first floating body and is fixedly connected with a trigger plate; a first spring is fixedly connected between the other side of the pressing plate and the inner wall of the adjusting cavity; and a counterweight cavity is formed between the other side of the pressing plate close to the trigger plate and the inside of the adjusting cavity. The bottom of the first floating body is provided with uniformly distributed connecting pipes in communication with adjacent counterweight cavities; the inside of the connecting pipe is provided with a first one-way valve for allowing water to pass in one direction into the counterweight cavity; and the bottom of the first floating body is provided with uniformly distributed drainage pipes in communication with adjacent counterweight cavities; the inside of the drainage pipe is provided with a second one-way valve for allowing water to be discharged from the inside of the counterweight cavity in one direction.

[0011] Further, the end of the drainage pipe away from the counterweight cavity is bent towards the connecting block and is parallel to the bottom surface of the first floating body.

[0012] Further, the top of the first floating body is provided with a mounting shell; the inside of the mounting shell is provided with a storage battery and a programmable logic controller; the programmable logic controller is provided with a remote transmission module capable of transmitting data monitored by the water quality monitor to a remote terminal; and the top of the first floating body is provided with a photovoltaic panel above the mounting shell.

[0013] Beneficial effects: 1. When the suspension mark is impacted in a large wind and wave condition, the connecting block is separated from the mounting structure on the first floating body, the impact of the wind and wave is reduced, and the burden on the anchor chain is reduced, which is convenient for subsequent recovery of the storage device, avoids the loss of monitoring data, and reduces the loss.

[0014] 2. When the first floating body is tilted by more than 30° due to waves, the rotating ball and the mounting rod rotate synchronously under the action of gravity, the rotating rod is driven by the connecting rope to make the pull rod extend out of the liquid storage cavity, and in this process, the sliding plate is driven to move synchronously to increase the space between the bottom of the sliding plate and the liquid storage cavity, and under the action of the third spring, the clamping block is retracted into the inside of the storage cavity, so that the limiting of the connecting block is released, the principle is simple, the space utilization is high, the mechanism is cleverly arranged, and the reliability is high.

[0015] 3. When the wind and wave are small, the sea wave hits the trigger plate of the auxiliary structure of the present application to make the trigger plate move towards the first floating body, at this time, the adjusting rod can drive the pressing plate to slide along the inner wall of the adjusting cavity, in this process, the internal space of the counterweight cavity can be increased, so that water is sucked through the connecting pipe and injected into the inside of the counterweight cavity to increase the counterweight of the sea wave hitting the first floating body in the direction, and the possibility of overturning is reduced.

[0016] 4、The photovoltaic panel provided by the present application can realize long-term self-sufficient power supply, avoid frequent battery replacement, and solve the endurance bottleneck of unattended suspended markers; secondly, the photovoltaic panel combined with the storage battery can provide power supply all day long, avoid power failure leading to monitoring interruption, and ensure complete and reliable hydrological data. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the present application; Figure 2 is a separate schematic diagram of the connecting block and the first floating body of the present application; Figure 3 is a distribution schematic diagram of the memory and the connecting block of the present application; Figure 4 is a connection schematic diagram of the installation structure and the first floating body of the present application; Figure 5 is a partial schematic diagram of the present application; Figure 4 is an enlarged view of A in the present application; Figure 6 is an enlarged view of B in the present application; Figure 4 Figure 7 is a partial schematic diagram of the installation structure of the present application; Figure 8 is a connection schematic diagram of the clamping block and the installation ring of the present application.

[0018] 1 - first floating body; 101 - installation shell; 102 - photovoltaic panel; 2 - connecting block; 201 - second floating body; 202 - clamping groove; 3 - auxiliary structure; 301 - trigger plate; 302 - adjusting rod; 303 - first one-way valve; 304 - adjusting cavity; 305 - extrusion plate; 306 - first spring; 307 - connecting pipe; 308 - second one-way valve; 309 - drain pipe; 4 - anchor chain; 5 - storage battery; 6 - installation structure; 601 - installation ring; 602 - flow channel; 603 - connecting channel; 604 - rotating ball; 605 - connecting cavity; 606 - second spring; 607 - connecting rope; 608 - pull rod; 609 - liquid storage cavity; 610 - storage cavity; 611 - third spring; 612 - clamping block; 613 - installation rod; 614 - sliding plate. DETAILED DESCRIPTION

[0019] The present application will be described in detail below in combination with the drawings and examples.

[0020] The present application provides a hydrological monitoring suspended marker, which comprises a first floating body 1, a connecting block 2, a water quality monitor, an installation structure 6, a storage battery 5, and a second floating body 201.

[0021] As Figure 1 , Figure 2 , Figure 3 ​As shown, the bottom of the first floating body 1 is provided with a connecting block 2, the bottom of the connecting block 2 is fixedly connected with an anchor chain 4, and the bottom of the anchor chain 4 is provided with an anchor claw in contact with the water bottom. The inside of the first floating body 1 is provided with a mounting structure 6 for connecting with the connecting block 2; the water quality monitor is arranged on the connecting block 2, specifically, the bottom of the connecting block 2 is provided with a protective shell, and a plurality of water channels are uniformly arranged on the surface of the protective shell, and the water quality monitor is arranged in the inside of the protective shell for monitoring the water.

[0022] The top of the first floating body 1 is provided with a mounting shell 101, and the inside of the mounting shell 101 is provided with a storage battery and a programmable logic controller; the programmable logic controller and the water quality monitor realize data transmission through wireless, and the programmable logic controller is provided with a remote transmission module, which can transmit the data monitored by the water quality monitor to a remote terminal, which can be a mobile phone APP and a computer; the top of the first floating body 1 is provided with a photovoltaic panel 102 above the mounting shell 101, which can convert light energy into electrical energy and store it in the storage battery for use by the programmable logic controller, the remote transmission module and the water quality monitor. The power supply of the storage battery and the water quality monitor can be connected by two connecting lines with quick male and female heads, and the male and female heads can be quickly separated without affecting the normal separation effect.

[0023] The surface of the connecting block 2 is provided with a plurality of uniformly distributed clamping grooves 202 for butt joint with the mounting structure 6; the inside of the connecting block 2 is provided with a storage 5 for storing data, and the storage 5 can store and record the data monitored by the water quality monitor. The top of the connecting block 2 is provided with a plurality of uniformly distributed second floating bodies 201, and the bottom of the first floating body 1 is provided with a plurality of recesses matched with the second floating bodies 201.

[0024] The mounting structure 6 includes a mounting ring 601, a rotating ball 604, a mounting rod 613, a connecting rope 607, a sliding plate 614, a pull rod 608, a rotating rod and a second spring 606, as shown. Figure 6 、 Figure 7 、 Figure 8

[0025] The mounting ring 601 is fixedly connected to the bottom of the first floating body 1, and the inside of the mounting ring 601 is provided with a plurality of uniformly distributed receiving cavities 610, and the inner wall of the receiving cavity 610 is slidably connected with a clamping block 612 along the radial direction of the mounting ring 601, one end of the clamping block 612 penetrates out of the receiving cavity 610 and extends into the inside of the corresponding clamping groove 202, and the bottom of the end of the clamping block 612 close to the clamping groove 202 is provided with an inclined surface.

[0026] ​The end of the clamping block 612 away from the card slot 202 is fixedly connected with the inner wall of the receiving cavity 610 through the third spring 611, and the inside of the mounting ring 601 is provided with the connecting channels 603 staggered with the receiving cavities 610, and two adjacent receiving cavities 610 are communicated through the connecting channels 603.

[0027] The upper end of the connecting block 2 can be inserted into the inside of the mounting ring 601, and in this process, the upper end of the connecting block 2 can extrude the inclined surface of the clamping block 612 to make it shrink into the inside of the receiving cavity 610, and at the same time, the clamping block 612 can extrude the third spring 611 in the shrinking process, until the connecting block 2 is installed in place, the clamping block 612 is reset and inserted into the inside of the card slot 202, so as to achieve the purpose of limiting the position of the connecting block 2.

[0028] The rotating ball 604 is rotatably connected in the inside of the first floating body 1, the inside of the first floating body 1 is provided with the connecting cavity 605 below the rotating ball 604, the lower surface of the rotating ball 604 extends into the inside of the connecting cavity 605 and is fixedly connected with the mounting rod 613, and the lower end of the mounting rod 613 is fixedly connected with the connecting rope 607.

[0029] The inside of the first floating body 1 is provided with the liquid storage cavity 609 below the connecting cavity 605, the inside wall of the liquid storage cavity 609 is slidably connected with the sliding plate 614, the top of the sliding plate 614 is fixedly connected with the pull rod 608, the upper end of the pull rod 608 penetrates into the inside of the connecting cavity 605, and the top of the pull rod 608 is hingedly connected with the rotating rod, the upper end of the rotating rod is fixedly connected with the other end of the connecting rope 607, and the second spring 606 is fixedly connected between the top of the sliding plate 614 and the inside wall of the liquid storage cavity 609.

[0030] The inside of the first floating body 1 is provided with the flow channels 602 uniformly distributed, one end of the flow channels 602 is communicated with the liquid storage cavity 609, the other end of the flow channels 602 is communicated with the connecting channels 603, and the inside of the liquid storage cavity 609 and the bottom of the sliding plate 614 are filled with hydraulic oil.

[0031] When the first floating body 1 is tilted by more than 30° due to the influence of the water surface waves, the water surface waves can cause the first floating body 1 to tilt by more than 30°, and the surface water waves are large, which causes a large impact force on the whole device, which undoubtedly increases the burden of the anchor chain 4, and long-term use will cause the anchor chain 4 to be broken, which will cause the whole device to be washed away. Generally, it is considered that the wave smaller than 30° is small, which will not cause the first floating body 1 to tilt, and thus will not trigger the movement described below.

[0032] When the first floating body 1 is tilted by more than 30° due to waves, the rotating ball 604 and the mounting rod 613 rotate synchronously under the action of gravity. Since the mounting rod 613 rotates with the rotating ball 604 to keep the center of gravity vertically downward and the inclination of the first floating body 1 changes the relative position of the two, the connecting rope 607 drives the rotating rod at this time, and the pull rod 608 is synchronously displaced, thereby driving the sliding plate 614 to move and compress the second spring 606 in the process of movement of the pull rod 608. The ball hinge connection between the rotating rod and the pull rod 608 will not be stuck due to the offset direction of the mounting rod 613. At the same time, the upward movement of the sliding plate 614 can increase the space between the bottom of the sliding plate 614 and the inside of the liquid storage cavity 609. At this time, the third spring 611 can drive the clamping block 612 to shrink into the storage cavity 610 and guide the hydraulic oil back to the inside of the liquid storage cavity 609 through the connecting channel 603 and the flow channel 602, and at the same time, the clamping block 612 is released from the limiting of the connecting block 2, thereby realizing the separation of the first floating body 1 and the connecting block 2 in the case of large wind and waves, reducing the influence of wind and waves, and facilitating the subsequent recovery of the storage device 5. The second floating body 201 can ensure that the connecting block 2 can float on the water surface under the action of the second floating body 201 after the first floating body 1 is separated, which is convenient for subsequent searching and avoids the loss of data caused by the breakage of the anchor chain 4 in the case of bad weather.

[0033] Under normal circumstances, the position of the sliding plate 614 can be ensured by the second spring 606, so that the hydraulic oil can be squeezed through the flow channel 602 and the connecting channel 603 to inject into the inside of the storage cavity 610 to ensure the position of the clamping block 612. When the sliding plate 614 moves upward, the clamping block 612 can be shrunk into the inside of the storage cavity 610 under the action of the third spring 611.

[0034] As shown in Figure 4 , Figure 5 , the floating marker further comprises an auxiliary structure 3 arranged on the side of the first floating body 1. A plurality of adjusting cavities 304 are uniformly arranged on the side of the first floating body 1 in the circumferential direction. An extrusion plate 305 is slidably connected to the inner wall of the adjusting cavity 304. One side of the extrusion plate 305 is fixedly connected with an adjusting rod 302. The other end of the adjusting rod 302 penetrates out of the first floating body 1 and is fixedly connected with a trigger plate 301. A first spring 306 is fixedly connected between the other side of the extrusion plate 305 and the inner wall of the adjusting cavity 304. A counterweight cavity is formed between the side of the extrusion plate 305 close to the trigger plate 301 and the inside of the adjusting cavity 304.

[0035] The bottom of the first floating body 1 is provided with connecting pipes 307 which are uniformly distributed and connected with adjacent weight cavities, the inside of the connecting pipes 307 is provided with first one-way valves 303 for allowing water to pass into the weight cavities in one direction; the bottom of the first floating body 1 is provided with drainage pipes 309 which are uniformly distributed and connected with adjacent weight cavities, the inside of the drainage pipes 309 is provided with second one-way valves 308 for allowing water to be drained from the inside of the weight cavities in one direction. The end of the drainage pipes 309 away from the weight cavities is bent towards the connecting block 2 and parallel to the bottom surface of the first floating body 1.

[0036] When the sea wave is small, the sea wave can hit the trigger plate 301 to make the trigger plate 301 move towards the first floating body 1, at this time, the adjusting rod 302 can drive the pressing plate 305 to slide along the inner wall of the adjusting cavity 304, in this process, the internal space of the weight cavity can be increased to form a negative pressure, so that water is sucked through the connecting pipes 307 and injected into the inside of the weight cavity to increase the possibility of the weight reducing the overturning of the sea wave hitting the first floating body 1 in the direction, and after the water surface tends to be calm, the first spring 306 can drive the pressing plate 305 to reset, so that the water stored in the inside of the weight cavity is drained through the drainage pipes 309.

[0037] Among them, the first one-way valve 303 and the second one-way valve 308 are both mature components in existing technology applications, and the first one-way valve 303 can allow water to pass into the inside of the weight cavity in one direction, and the second one-way valve 308 can allow water to be drained from the inside of the weight cavity in one direction.

[0038] Working principle: when the sea wave is small, the sea wave can hit the trigger plate 301 to make the trigger plate 301 move to the first floating body 1 direction, at this time, the adjusting rod 302 can drive the extrusion plate 305 to slide along the inner wall of the adjusting cavity 304, in this process, the internal space of the counterweight cavity can be increased, so that water is sucked through the connecting pipe 307 and injected into the internal space of the counterweight cavity to increase the possibility of the counterweight reducing the overturning of the sea wave hitting the first floating body 1 direction, and after the water surface tends to be calm, the extrusion plate 305 can be reset by the first spring 306, so that the water stored in the internal space of the counterweight cavity is discharged through the drain pipe 309, when the first floating body 1 is affected by the wind and wave to cause the overall inclination angle to exceed 30°, the inclined installation rod 613 of the first floating body 1 can drive the rotating rod through the connecting rope 607 to make the pull rod 608 move up synchronously, and then drive the sliding plate 614 to move and compress the second spring 606, and the ball hinge connection between the rotating rod and the pull rod 608 will not be stuck due to the offset direction of the installation rod 613, and at the same time, the upward movement of the sliding plate 614 can increase the space between the bottom of the sliding plate 614 and the internal space of the liquid storage cavity 609, at this time, the third spring 611 can drive the clamping block 612 to shrink into the internal space of the storage cavity 610 under the action of the third spring 611, that is, the limiting of the connecting block 2 can be released, and then the first floating body 1 and the connecting block 2 can be separated in the case of large wind and wave, the influence of wind and wave is reduced, and the storage device 5 is convenient for subsequent recovery, and the second floating body 201 can ensure that the connecting block 2 can float on the water surface under the action of the second floating body 201 after the first floating body 1 is separated, which is convenient for subsequent search, and avoids the data loss caused by the breakage of the anchor chain 4 in the case of bad weather.

[0039] In summary, the above is only a preferred embodiment of the present application, and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A suspended marker for hydrological monitoring, characterized in that, Includes a first float, a connecting block, a water quality monitor, an installation structure, a storage device, and a second float; The bottom of the first float is provided with a connecting block, and the bottom of the connecting block is fixedly connected with an anchor chain. The interior of the first float is provided with an installation structure for connecting with the connecting block. The water quality monitor is installed on the connecting block. The surface of the connecting block has evenly distributed slots for docking with the mounting structure; the interior of the connecting block is equipped with a memory for storing data; the top of the connecting block is provided with evenly distributed second floats; the bottom of the first float is provided with a groove that matches the second float.

2. The suspended marker for hydrological monitoring as described in claim 1, characterized in that, The mounting structure includes a mounting ring fixedly connected to the bottom of the first float. The mounting ring has evenly distributed storage cavities inside. The inner wall of the storage cavity is slidably connected to a locking block along the radial direction of the mounting ring. One end of the locking block passes through the storage cavity and extends into the interior of the corresponding locking slot. The bottom of the end of the locking block near the locking slot is provided with an inclined surface.

3. The suspended marker for hydrological monitoring as described in claim 2, characterized in that, The end of the card block away from the card slot is fixedly connected to the inner wall of the storage cavity by a third spring. The inside of the mounting ring is provided with connecting channels that are staggered with the storage cavity, and two adjacent storage cavities are connected through the connecting channels.

4. The suspended marker for hydrological monitoring as described in claim 3, characterized in that, The mounting structure also includes a rotating ball, a mounting rod, a connecting rope, a sliding plate, a pull rod, a rotating rod, and a second spring; The rotating ball is rotatably connected to the inside of the first float. The first float has a connecting cavity located below the rotating ball. The lower surface of the rotating ball extends into the connecting cavity and is fixedly connected to an installation rod. The lower end of the installation rod is fixedly connected to a connecting rope. The first float has a liquid storage chamber located below the connecting cavity. A sliding plate is slidably connected to the inner wall of the liquid storage chamber. A pull rod is fixedly connected to the top of the sliding plate. The upper end of the pull rod extends into the interior of the connecting cavity, and a rotating rod is ball-jointed at the top of the pull rod. The upper end of the rotating rod is fixedly connected to the other end of the connecting rope. A second spring is fixedly connected between the top of the sliding plate and the inner wall of the liquid storage chamber. The first float has uniformly distributed flow channels inside. One end of the flow channel is connected to the liquid storage chamber, and the other end of the flow channel is connected to the connecting channel. Hydraulic oil is filled between the bottom of the slide plate and the inside of the liquid storage chamber.

5. The suspended marker for hydrological monitoring as described in any one of claims 1-4, characterized in that, The buoy also includes an auxiliary structure, which is disposed on the side of the first float. Several adjustment cavities are evenly opened on the side of the first float in the circumferential direction. A squeezing plate is slidably connected to the inner wall of the adjustment cavity. An adjustment rod is fixedly connected to one side of the squeezing plate. The other end of the adjustment rod passes through the first float and is fixedly connected to a trigger plate. A first spring is fixedly connected between the other side of the squeezing plate and the inner wall of the adjustment cavity. A counterweight cavity is formed between the side of the squeezing plate near the trigger plate and the interior of the adjustment cavity. The bottom of the first float is provided with evenly distributed connecting pipes that are connected to the adjacent counterweight chambers. The connecting pipes are provided with a first one-way valve to allow water to pass through and enter the counterweight chamber in one direction. The bottom of the first float is provided with evenly distributed drain pipes that are connected to the adjacent counterweight chambers. The drain pipes are provided with a second one-way valve to allow water to be discharged from the counterweight chamber in one direction.

6. The suspended marker for hydrological monitoring as described in claim 5, characterized in that, The end of the drain pipe away from the counterweight cavity bends toward the connecting block and is parallel to the bottom surface of the first float.

7. The suspended marker for hydrological monitoring as described in claim 5, characterized in that, The first float is provided with a mounting shell on its top, and a battery and a programmable logic controller are provided inside the mounting shell; the programmable logic controller is provided with a remote transmission module, which can transmit the data monitored by the water quality monitor to a remote terminal; a photovoltaic panel is provided on the top of the first float above the mounting shell.

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