Water quality index monitoring device for environment-friendly water affairs

Abstract

The invention relates to the technical field of water sampling devices, in particular to a water quality index monitoring device for environment-friendly water affairs. According to the technical scheme, the water taking device comprises a plurality of water taking barrels, each water taking barrel comprises a plurality of elastic rods capable of elastically deforming and an opening and closing valve installed at the top of the water taking barrel, and each opening and closing valve comprises a circulation hole and a valve element for blocking the circulation hole; the tension conversion part comprises a mounting plate, a supporting column mounted on the mounting plate in a sliding mode and an inserting piece mounted on the mounting plate and connected with the supporting column in an inserting mode, the supporting column and the hanging rod are fixedly connected through a traction rope, a sliding rod with the limited sliding distance is mounted on the mounting plate in a sliding mode, and the sliding rod and the valve element are fixedly connected through a connecting rope. The plug board of the tension conversion part is in plug-in connection with the support column, so that the device is supported by a traction rope in a lowering stage, a slide rod is switched to lift a valve core to close the valve after triggering, multi-layer water sample collection is synchronously completed by single lowering, and mutual interference of water body shapes with different depths is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water sampling devices, in particular to an environmental water quality index monitoring device. BACKGROUND

[0002] The urgent demand for water quality safety in the field of environmental water drives the development of water quality index monitoring devices. The core is to use sensors, automatic control and Internet of Things technology to overcome the limitations of traditional manual sampling, realize continuous, automatic and real-time monitoring of key indicators such as water temperature, turbidity, pH, dissolved oxygen, nutrients and pollutants, and be widely used in rivers, lakes, reservoirs, water sources and sewage outlets. Due to the vertical stratification phenomenon of water bodies, such as temperature, dissolved oxygen and pollutant concentration changing with depth, it is difficult to fully reflect the water quality by monitoring at a single point or fixed depth. Therefore, multi-layer water sampling device, as a key component of water quality index monitoring device system, is integrated and applied. It is specially used for precise collection of water samples at different preset depths to provide depth-representative samples for subsequent laboratory fine analysis.

[0003] The existing water quality sampler has significant defects in realizing synchronous sampling of water samples at different depths. If a single water bucket is used for multiple sampling, the equipment needs to be repeatedly lowered and recovered, which greatly reduces the operation efficiency. Moreover, the cylinder cannot be thoroughly cleaned, leaving biological membranes such as algae, which seriously pollute the subsequent samples. At the same time, the continuous stirring of the water body during the multiple operation processes destroys the original physicochemical state at the target depth, resulting in distortion of key parameters such as dissolved oxygen and suspended solids. Multiple water buckets can be used in series, but if the water inlet of the water bucket is always open, the water bucket will enter the water as soon as it enters the water body, which cannot meet the requirement of taking water after reaching a specific depth. SUMMARY

[0004] The purpose of the present application is to solve the problems in the background art, and to provide an environmental water quality index monitoring device that can efficiently sample multiple layers of water samples, allow the water bucket to fill with water after reaching a specified depth, and is convenient to carry, small in size and low in weight.

[0005] The technical scheme of the present application: an environmental water quality index monitoring device, comprising a drift bottle, further comprising:

[0006] A plurality of water buckets connected to the drift bottle, the water bucket comprising a plurality of elastically deformable elastic rods, the bottom of the plurality of elastic rods being provided with a support component for supporting and controlling the contraction of the plurality of elastic rods;

[0007] An on-off valve installed on the top of the water bucket, the on-off valve comprising a flow-through hole and a valve core blocking the flow-through hole, the bottom of the valve core being fixedly provided with a counterweight ball, the counterweight ball pulling the valve core downward and opening the flow-through hole when the valve core is not affected by external force;

[0008] The suspension rod is installed on the plurality of elastic rods, the upper part of the water bucket is provided with a tension conversion component, the tension conversion component comprises a mounting plate, a support column slidingly installed on the mounting plate, and a plug-in part installed on the mounting plate and inserted with the support column, the support column and the suspension rod are fixedly connected through a traction rope, a sliding rod with limited sliding distance is slidingly installed on the mounting plate, and the sliding rod and the valve core are fixedly connected through a connecting rope.

[0009] The starting component is installed at the top end of the two adjacent elastic rods, and the starting component controls the insertion state of the plug-in part and the support column according to the contraction degree of the top part of the elastic rod.

[0010] Optionally, the on-off valve comprises a valve body fixedly installed at the top of the water bucket, the flow-through hole comprises a blocking hole arranged in the valve body and a communication hole with a larger inner diameter than the blocking hole, a limiting ring is arranged at the top of the blocking hole, the valve core is slidingly installed in the blocking hole, and a sealing ring is fixedly installed on the valve core.

[0011] Optionally, the valve core is fixedly connected with the counterweight ball through a connecting strip, a floating body is fixedly installed on the connecting strip, a magnetic attraction ring is fixedly installed in the limiting ring, and an iron sheet is fixedly installed on the valve core.

[0012] Optionally, the tension conversion component comprises a box body, the mounting plate is fixedly installed in the box body, a plurality of plug-in holes are arranged on the support column, a plug-in plate is slidingly installed on the mounting plate, a plurality of rolling bodies are rotatably installed on the plug-in plate, an extension rod is fixedly installed on the plug-in plate, and a driving wheel is rotatably installed on the extension rod.

[0013] Optionally, the starting component comprises a detection mechanism for detecting whether the elastic rod is compressed or reset by hydraulic pressure, and a transmission mechanism linked with the detection mechanism, the transmission mechanism does not drive the plug-in plate to move when the elastic rod is compressed, and drives the plug-in plate to move away from the plug-in hole after the elastic rod is reset.

[0014] Optionally, the detection mechanism comprises a detection cylinder rotatably installed on the elastic rod, a first sealing plate is slidingly installed in the detection cylinder, a round rod is fixedly installed on the first sealing plate, and the round rod is rotatably connected with the adjacent elastic rod.

[0015] Optionally, the transmission mechanism comprises a first transmission cylinder fixedly installed in the box body, a second sealing plate is slidingly installed in the first transmission cylinder, a driving rod is fixedly installed on the second sealing plate, a guide plate obliquely arranged and slidingly connected with the driving wheel is fixedly installed on the driving rod, a second transmission cylinder is fixedly installed in the box body, and a third sealing plate is slidingly installed in the second transmission cylinder.

[0016] The bottom of the first transmission cylinder and the second sealing plate, the second transmission cylinder and the third sealing plate, and the bottom of the detection cylinder and the first sealing plate are filled with transmission medium;

[0017] The first transmission cylinder is provided with a first conveying assembly for driving the transmission medium into the first transmission cylinder when the first sealing plate moves forward, and the second transmission cylinder is provided with a second conveying assembly for driving the hydraulic medium into the second transmission cylinder when the first sealing plate moves backward.

[0018] Optionally, the first conveying assembly comprises a first three-way joint fixedly installed on the first transmission cylinder, a first one-way valve fixedly installed on the first three-way joint, a second three-way joint fixedly installed on the first one-way valve, a first pipeline fixedly installed between the first three-way joint and the second three-way joint, and a first valve fixedly installed on the first pipeline, wherein the first one-way valve allows the liquid to flow out of the first transmission cylinder in one direction, and a first conveying pipe is fixedly installed between the detection cylinder and the second three-way joint.

[0019] The second conveying assembly comprises a third three-way joint fixedly installed on the second transmission cylinder, a second one-way valve fixedly installed on the third three-way joint, a fourth three-way joint fixedly installed on the second one-way valve, a second pipeline fixedly installed between the fourth three-way joint and the third three-way joint, and a second valve fixedly installed on the second pipeline, wherein the second one-way valve allows the liquid to flow into the second transmission cylinder in one direction, and a second conveying pipe is fixedly installed between the detection cylinder and the fourth three-way joint.

[0020] Optionally, a slow-return component for prolonging the return time of the elastic rods after extension and contraction is installed between two adjacent elastic rods, and the slow-return component comprises a first cylinder body rotatably installed on the elastic rod, a first blocking body slidably installed in the first cylinder body, a connecting shaft fixedly installed on the first blocking body and rotatably connected with the adjacent elastic rod, a second cylinder body fixedly installed on the first cylinder body, and a second blocking body slidably installed in the second cylinder body.

[0021] The first cylinder body and the second cylinder body are filled with transmission medium, and the first conveying assembly and the second conveying assembly are installed between the first cylinder body and the second cylinder body, wherein the first conveying assembly causes the transmission medium in the first cylinder body and the second cylinder body to flow clockwise, and the second conveying assembly causes the transmission medium in the first cylinder body and the second cylinder body to flow counterclockwise.

[0022] Optionally, the first conveying assembly comprises a first circular pipe in communication with the bottom of the first cylinder and the second cylinder, a third one-way valve is fixedly installed on the first circular pipe, the third one-way valve allows the transmission medium in the first cylinder to enter the second cylinder in one direction, a second circular pipe is fixedly installed on the top of the first cylinder and the second cylinder, a fourth one-way valve is fixedly installed on the second circular pipe, and the fourth one-way valve controls the hydraulic medium in the second cylinder to enter the first cylinder in one direction.

[0023] The second conveying assembly comprises a third circular pipe fixedly installed on the top of the first cylinder and the second cylinder, a fifth one-way valve is fixedly installed on the third circular pipe, the fifth one-way valve controls the hydraulic medium in the first cylinder to enter the second cylinder in one direction, a fourth circular pipe is fixedly installed on the bottom of the first cylinder and the second cylinder, a sixth one-way valve is fixedly installed on the fourth circular pipe, the sixth one-way valve controls the hydraulic medium in the second cylinder to enter the first cylinder in one direction, and a third valve is fixedly installed on the fourth circular pipe.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] The elastic rod is used to realize automatic unlocking of the support column when the water bucket reaches the target depth, precise control of the closing time of the valve, response to the change of water pressure without external electronic sensing devices, and independent work of multiple water buckets through rope connection.

[0026] The insertion plate of the tension conversion component is inserted into the support column, so that the device is supported by the traction rope during the lowering stage, and the valve core is closed after the switch to the sliding rod, thereby realizing synchronous completion of multi-layer water sample collection in a single lowering process, preventing interference between water bodies at different depths, and eliminating the need for electrical components and power supply. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 FIG. 1 is a structural diagram of an environmental protection water quality monitoring device;

[0028] Figure 2 FIG. 2 is a structural diagram of a water bucket; Figure 1 ;

[0029] Figure 3 FIG. 3 is a structural diagram of a water bucket; Figure 2 ;

[0030] Figure 4 FIG. 4 is a structural diagram of a water bucket; Figure 3 ;

[0031] Figure 5Fig. 1 is a structural schematic view of the inside of a water taking bucket;

[0032] Figure 6 Fig. 2 is a partial enlarged view of A in Fig. 1; Figure 5

[0033] Figure 7 Fig. 3 is a structural schematic view of a supporting component;

[0034] Figure 8 Fig. 4 is a structural schematic view of a tension converting component;

[0035] Figure 9 Fig. 5 is a partial enlarged view of B in Fig. 4; Figure 8

[0036] Figure 10 Fig. 6 is a structural schematic view of a starting component; Figure 1

[0037] Figure 11 Fig. 7 is a structural schematic view of a starting component; Figure 2

[0038] Figure 12 Fig. 8 is a structural schematic view of a first conveying assembly;

[0039] Figure 13 Fig. 9 is a structural schematic view of a second conveying assembly;

[0040] Figure 14 Fig. 10 is a structural schematic view of a buffer component;

[0041] Figure 15 Fig. 11 is a structural schematic view of a first conveying assembly;

[0042] Figure 16 Fig. 12 is a structural schematic view of a second conveying assembly.

[0043] Fig. 1 is a structural schematic view of the inside of a water taking bucket;

[0044] Fig. 2 is a structural schematic view of a supporting component;

[0045] Fig. 3 is a structural schematic view of a tension converting component;

[0046] Fig. 4 is a structural schematic view of a starting component;

[0047] ​​​​5, on-off valve; 51, valve body; 511, blocking hole; 512, communication hole; 513, limiting ring; 52, valve core; 521, sealing ring; 53, connecting strip; 54, counterweight ball; 541, floating body; 55, magnetic attraction ring; 56, iron sheet; 57, expansion rod;

[0048] 6, starting part; 61, detection mechanism; 611, detection cylinder; 612, first sealing plate; 613, round rod; 62, transmission mechanism; 621, first transmission cylinder; 622, second sealing plate; 623, driving rod; 624, guide plate; 625, second transmission cylinder; 626, third sealing plate; 63, first conveying assembly; 631, first three-way joint; 632, first one-way valve; 633, second three-way joint; 634, first pipeline; 635, first valve; 64, second conveying assembly; 641, third three-way joint; 642, second one-way valve; 643, fourth three-way joint; 644, second pipeline; 645, second valve; 65, first conveying pipe; 66, second conveying pipe; 67, slow return part; 671, second cylinder body; 672, second blocking body; 673, first cylinder body; 674, first blocking body; 675, connecting shaft; 68, first conveying assembly; 681, first circular pipe; 682, third one-way valve; 683, second circular pipe; 684, fourth one-way valve; 69, second conveying assembly; 691, third circular pipe; 692, fifth one-way valve; 693, fourth circular pipe; 694, sixth one-way valve; 695, third valve;

[0049] 7, rope;

[0050] 8, pull rope;

[0051] 9, drift bottle. DETAILED DESCRIPTION

[0052] The technical solutions of the present application are further described below in combination with the drawings and specific embodiments.

[0053] Embodiment one, as Figures 1 to 5 and Figure 7As shown, the environmental protection water quality index monitoring device provided by the present application comprises a floating bottle 9, further comprises a plurality of water taking buckets 1 connected to the floating bottle 9, the floating bottle 9 floats on the water surface and exerts a pulling force on the water taking buckets 1 under the action of buoyancy, and can drive the water taking buckets 1 to move under the action of water flow, the water taking buckets 1 are provided with water temperature sensors, turbidity sensors, pH sensors, dissolved oxygen sensors and algae sensors, the temperature of the water body is measured by the water temperature sensor, the degree of hindrance when the suspended particulate matters such as silt, algae, organic matter and microorganisms in the water body pass through light is measured by the turbidity sensor, the pH of the water body, i.e. the negative logarithm of the hydrogen ion concentration in the water, is measured by the pH sensor, the concentration of the molecular oxygen dissolved in the water is measured by the dissolved oxygen sensor, and the density of the planktonic algae is indirectly estimated by measuring the fluorescence intensity of chlorophyll a in the water body by the algae sensor.

[0054] The water taking bucket 1 comprises a plurality of elastically deformable elastic rods 11, flexible side sealing sheets 12 are fixedly installed between adjacent two elastic rods 11, deformable bottom plates 13 and top plates 14 are fixedly installed at the bottom and top of the plurality of elastic rods 11 respectively, and a sealed space for containing liquid can be formed by the side sealing sheets 12, the bottom plates 13 and the top plates 14.

[0055] Further, the bottom of the plurality of elastic rods 11 is provided with a supporting component 2 for supporting the plurality of elastic rods 11 and controlling the contraction of the plurality of elastic rods 11, the supporting component comprises telescopic rods 21 fixedly installed on the plurality of elastic rods 11, positioning discs 22 fixedly installed on the plurality of telescopic rods 21, screw rods 23 threadedly connected to the positioning discs 22, driving discs 24 rotatably installed on the screw rods 23, and a plurality of connecting rods 25 rotatably installed on the driving discs 24, the connecting rods 25 correspond to the elastic rods 11 one by one and are rotatably connected, the driving disc 24 can be driven to ascend and descend by rotating the screw rod 23 and moving the screw rod 23 along the axial direction, the driving disc 24 that ascends and descends can drive the plurality of connecting rods 25 to rotate, and the plurality of elastic rods 11 can be contracted or expanded, and the position of the screw rod 23 is fixed under the self-locking effect of the threadedly connected screw rod 23 and the positioning disc 22, so that the bottom of the plurality of elastic rods 11 is supported.

[0056] It should be noted that the water taking bucket 1 at the bottom is connected with a counterweight 27 through a soft rope 26, under the action of the elastic force of the elastic rod 11 and without the influence of external force, the elastic rod 11 can keep vertical, since the bottom of the elastic rod 11 is supported by the supporting component 2 and the top is not provided with support, after the plurality of elastic rods 11 enter the water body, the plurality of elastic rods 11 can contract inward under the action of the water pressure, and after the water taking bucket 1 enters the water body, the internal and external pressures are balanced, and the elastic rod 11 can restore to the straight state under the action of the elastic force of the elastic rod 11.

[0057] As Figure 6 shown, the embodiment also includes an opening and closing valve 5 installed on the top of the water taking bucket 1, the opening and closing valve 5 includes a flow-through hole and a valve core 52 blocking the flow-through hole, the bottom of the valve core 52 is fixedly installed with a counterweight ball 54, the counterweight ball 54 pulls the valve core 52 to move downward and open the flow-through hole when the valve core 52 is not affected by external force, the valve core 52 blocks the flow-through hole, and under the action of gravity, the counterweight ball 54 drives the valve core 52 to move downward, so that the valve core 52 no longer blocks the flow-through hole, and a certain damping is arranged at the connection between the valve core 52 and the flow-through hole, so that the valve core 52 does not move downward instantaneously under the action of gravity of the counterweight ball 54, and the valve core 52 can move slowly.

[0058] Further, the opening and closing valve 5 includes a valve body 51 fixedly installed on the top of the water taking bucket 1, the flow-through hole includes a blocking hole 511 arranged in the valve body 51, a communication hole 512 with an inner diameter larger than that of the blocking hole 511, and a limiting ring 513 arranged at the top of the blocking hole 511, the valve core 52 is slidingly installed in the blocking hole 511, the valve core 52 is fixedly installed with a sealing ring 521, the outer diameter of the valve core 52 is consistent with the inner diameter of the blocking hole 511, so that the valve core 52 blocks the blocking hole 511, when the valve core 52 moves to the inside of the communication hole 512, liquid can enter the inside of the water taking bucket 1 through the blocking hole 511 and the communication hole 512, when the valve core 52 moves upward under the action of upward pulling force, it will enter the blocking hole 511 again and block the blocking hole 511, when the valve core 52 contacts with the limiting ring 513, the upward valve core 52 will drive the valve body 51 and the water taking bucket 1 to move upward.

[0059] Among them, the valve core 52 is fixedly installed with a sealing ring 521, which ensures the sealing between the valve core 52 and the blocking hole 511, the valve core 52 is fixedly connected with the counterweight ball 54 through a connecting strip 53, the connecting strip 53 is fixedly installed with a floating body 541, when the water taking bucket 1 is filled with liquid, the floating body 541 will be affected by the buoyancy, which will offset part of the gravity of the counterweight ball 54, the limiting ring 513 is fixedly installed with a magnetic ring 55, and the valve core 52 is fixedly installed with an iron sheet 56, the magnetic ring 55 attracts the iron sheet 56, when the iron sheet 56 contacts with the magnetic ring 55, the valve core 52 will be fixed, at this time, the initial position of the valve core 52 can be fixed, and the counterweight ball 54 cannot overcome the magnetic force, after the water taking bucket 1 is put into the water body, under the action of hydraulic pressure, downward pressure will be generated on the valve core 52, at this time, the resultant force of the counterweight ball 54 and the water pressure will be greater than the magnetic force, at this time, the valve core 52 will slowly move downward, and finally the valve core 52 will be separated from the blocking hole 511, and the time of the slow movement is sufficient to lower the water taking bucket 1 to the specified depth.

[0060] As Figures 1 to 4 and Figures 8 to 9As shown, the embodiment also includes a suspension rod 31 mounted on the plurality of elastic rods 11, a connecting seat 3 fixedly mounted on the positioning disc 22, the suspension rod 31 is fixedly connected with the connecting seat 3, a tension conversion component 4 is mounted above the water taking bucket 1, the tension conversion component 4 includes a mounting plate 42, a support column 43 slidingly mounted on the mounting plate 42, a plug-in piece mounted on the mounting plate 42 and plugged with the support column 43, the support column 43 is fixedly connected with the suspension rod 31 through a traction rope 47, a sliding distance limited sliding rod 48 is slidingly mounted on the mounting plate 42, the sliding rod 48 is fixedly connected with the valve core 52 through a connecting rope 49, a plurality of series connected water taking buckets 1 will be moved downward under the action of gravity, two adjacent water taking buckets 1 are connected through a rope 7 with different lengths according to needs, the two ends of the rope 7 are fixedly connected with the lead screws 23 and the support columns 43 on the two water taking buckets 1 respectively, the support column 43 on the topmost water taking bucket 1 is connected with a traction piece above the water body through a pulling rope 8.

[0061] It should be noted that when the support column 43 is fixedly connected with the mounting plate 42, the pulling force of the water taking bucket 1 is borne by the traction rope 47, which will directly provide pulling force to the plurality of elastic rods 11, when the support column 43 is slidingly connected with the mounting plate 42, the mounting plate 42 will be moved downward under the action of gravity at this time, the mounting plate 42 and the sliding rod 48 will find relative movement, and when moving to the limit position, the sliding rod 48 and the connecting rope 49 will provide pulling force to the water taking bucket 1, which will drive the valve core 52 to move upward under the action of the pulling force at this time, and make the valve core 52 enter the blocking hole 511 again, so as to block the water taking bucket 1, prevent water exchange during the process of water body rising.

[0062] Further, the tension conversion component 4 includes a box body 41, the mounting plate 42 is fixedly mounted in the box body 41, a plurality of plug-in holes 44 are arranged on the support column 43, a plug-in plate 45 is slidingly mounted on the mounting plate 42, the support column 43 is fixed when the plug-in plate 45 enters the plug-in hole 44, a plurality of rolling bodies 451 are rotatably mounted on the plug-in plate 45, the frictional resistance between the plug-in plate 45 and the plug-in hole 44 can be reduced by arranging the rolling bodies 451, which facilitates the plug-in plate 45 to enter or leave the plug-in hole 44, an extension rod 46 is fixedly mounted on the plug-in plate 45, a driving wheel 461 is rotatably mounted on the extension rod 46, the plug-in plate 45 can be moved by applying a pushing force to the driving wheel 461.

[0063] As Figures 10 to 13As shown, the embodiment also includes a starting component 6, which is installed at the top end of two adjacent elastic rods 11. The starting component 6 controls the insertion state of the insertion piece and the support column 43 according to the contraction degree of the top of the elastic rod 11. Before the water bucket 1 enters the water body, it is necessary to ensure that the insertion plate 45 enters the insertion hole 44. Before the water bucket 1 is lowered to the specified depth, the pulling force of the water bucket 1 is provided by the traction rope 47, and it is necessary to ensure that after the water bucket 1 enters the water body, the compression and contraction of the top will not affect the connection state of the insertion piece, and the insertion piece is separated after the top of the water bucket 1 is reset.

[0064] Further, the starting component 6 includes a detection mechanism 61 for detecting whether the elastic rod 11 is compressed by hydraulic pressure or reset, and a transmission mechanism 62 connected with the detection mechanism 61. The detection mechanism 61 will provide power to the transmission mechanism 62 according to the hydraulic state of the top of the water bucket 1. Through the transmission mechanism 62, the insertion plate 45 will not be driven to move when the elastic rod 11 is compressed and contracted, and the insertion plate 45 will be driven to move away from the insertion hole 44 after the elastic rod 11 is reset.

[0065] The detection mechanism 61 includes a detection cylinder 611 rotatably installed on the elastic rod 11, a first sealing plate 612 slidably installed in the detection cylinder 611, and a round rod 613 fixedly installed on the first sealing plate 612. The round rod 613 is rotatably connected with the adjacent elastic rod 11. When the water bucket 1 enters the water body, the top of the water bucket 1 is compressed under the action of water pressure, that is, the plurality of elastic rods 11 will be gathered inward. At this time, the distance between the two adjacent elastic rods 11 will change, which will change the total length of the round rod 613 and the detection cylinder 611, that is, the round rod 613 will drive the first sealing plate 612 to move in the detection cylinder 611. At this time, the space between the bottom of the detection cylinder 611 and the first sealing plate 612 will be extruded and released.

[0066] Further, the transmission mechanism 62 comprises a first transmission cylinder 621 fixedly installed in the box body 41, a second sealing plate 622 slidably installed in the first transmission cylinder 621, a driving rod 623 fixedly installed on the second sealing plate 622, a guide plate 624 obliquely arranged and slidably connected with the driving wheel 461, a second transmission cylinder 625 fixedly installed in the box body 41, a third sealing plate 626 slidably installed in the second transmission cylinder 625, the first transmission cylinder 621 and the second transmission cylinder 625 being communicated with the detection cylinder 611, and the bottom of the first transmission cylinder 621, the second sealing plate 622, the second transmission cylinder 625, the third sealing plate 626, the bottom of the detection cylinder 611 and the first sealing plate 612 being filled with a transmission medium, the transmission medium being a liquid that cannot be compressed in a working environment, so that when the elastic rod 11 is contracted to drive the first sealing plate 612 to move, the transmission medium will enter or leave the first transmission cylinder 621 and the second transmission cylinder 625, and when the hydraulic medium leaves the inside of the first transmission cylinder 621, suction will be generated on the second sealing plate 622, and the driving rod 623 and the guide plate 624 will be driven to move, the moving guide plate 624 will push the driving wheel 461 to move, and thus the plug-in plate 45 will be pushed away from the plug-in hole 44.

[0067] As shown in Figures 10 to 13 In order to make the second sealing plate 622 only be affected when the elastic rod 11 is reset, a first conveying assembly 63 is installed on the first transmission cylinder 621 to drive the transmission medium to enter the inside of the first transmission cylinder 621 when the first sealing plate 612 moves forward, and a second conveying assembly 64 is installed on the second transmission cylinder 625 to drive the hydraulic medium to enter the inside of the second transmission cylinder 625 when the first sealing plate 612 moves reversely, so that when the elastic rod 11 is reset, i.e. the distance between the adjacent two elastic rods 11 increases, the space between the first sealing plate 612 and the detection cylinder 611 increases, i.e. suction is generated to the outside, the space in the inside of the detection cylinder 611 is supplemented by the hydraulic medium in the inside of the first transmission cylinder 621, and the second sealing plate 622 is driven to move, and vice versa, when the elastic rod 11 is compressed, the space between the first sealing plate 612 and the detection cylinder 611 is reduced, and the hydraulic medium in the inside of the detection cylinder 611 will be squeezed into the inside of the second transmission cylinder 625, and the first sealing plate 612 and the guide plate 624 will not be affected, i.e. the position of the plug-in plate 45 will not move.

[0068] Further, the first conveying assembly 63 comprises a first three-way joint 631 fixedly installed on the first transmission cylinder 621, a first one-way valve 632 fixedly installed on the first three-way joint 631, a second three-way joint 633 fixedly installed on the first one-way valve 632, a first pipeline 634 fixedly installed between the first three-way joint 631 and the second three-way joint 633, and a first valve 635 fixedly installed on the first pipeline 634. The first one-way valve 632 allows liquid to unidirectionally leave the inside of the first transmission cylinder 621. The first conveying pipe 65 is fixedly installed between the detection cylinder 611 and the second three-way joint 633. When the elastic rods 11 are reset, the distance between adjacent two elastic rods 11 increases, which causes the detection cylinder 611 to generate suction to the outside, i.e., the hydraulic medium needs to enter the inside of the detection cylinder 611. At this time, the inside of the first transmission cylinder 621 is affected by the suction force, which causes the second sealing plate 622 to move outward and extrude the hydraulic medium into the inside of the detection cylinder 611. The extruded hydraulic medium enters the inside of the detection cylinder 611 through the first three-way joint 631, the first one-way valve 632, the second three-way joint 633, and the first conveying pipe 65.

[0069] When the elastic rods 11 are compressed, the distance between adjacent two elastic rods 11 decreases, which causes the detection cylinder 611 to generate pressure to the outside. At this time, the transmission medium cannot enter the inside of the first transmission cylinder 621 under the action of the first one-way valve 632.

[0070] It should be noted that the first valve 635 is in a long-closed state. Before use, the first valve 635 can be opened, so that the transmission medium between the detection cylinder 611 and the first transmission cylinder 621 can be freely exchanged, and the initial position of the second sealing plate 622 can be adjusted.

[0071] Further, the second conveying assembly 64 comprises a third three-way joint 641 fixedly installed on the second transmission cylinder 625, a second one-way valve 642 fixedly installed on the third three-way joint 641, a fourth three-way joint 643 fixedly installed on the second one-way valve 642, a second pipeline 644 fixedly installed between the fourth three-way joint 643 and the third three-way joint 641, and a second valve 645 fixedly installed on the second pipeline 644. The second one-way valve 642 allows liquid to unidirectionally enter the second transmission cylinder 625. The second conveying pipe 66 is fixedly installed between the detection cylinder 611 and the fourth three-way joint 643. When the elastic rods 11 are reset, the distance between adjacent two elastic rods 11 increases, which causes the detection cylinder 611 to generate suction to the outside. At this time, the second transmission cylinder 625 is not affected under the action of the second one-way valve 642.

[0072] When the elastic rod 11 is compressed, the distance between two adjacent elastic rods 11 decreases, which will cause the inside of the detection cylinder 611 to generate external pressure. At this time, the compressed transmission medium will enter the second transmission cylinder 625, allowing the first sealing plate 612 inside the detection cylinder 611 to move freely. After use, the position of the third sealing plate 626 can be adjusted by opening the second valve 645, and it can be used continuously multiple times.

[0073] Working principle: Under water pressure, the elastic rod 11 of the water bucket 1 retracts inward. At this time, the detection mechanism 61 of the activation component 6 senses the contraction state—the distance between adjacent elastic rods 11 decreases, forcing the first sealing plate 612 inside the detection cylinder 611 to move inward. The squeezed transmission medium flows unidirectionally into the second transmission cylinder 625 through the second conveying component 64, while the plug plate 45 still locks the support column 43. The traction rope 47 bears the weight of the water bucket 1, and the valve core 52 remains closed under the magnetic attraction of the magnetic ring 55 and the iron plate 56. When the target depth is reached, the water pressure balance causes the elastic rod 11 to reset and the distance between them to increase. A negative pressure is formed inside the detection cylinder 611, and the transmission medium is drawn into the detection cylinder 611 from the first transmission cylinder 621 through the first conveying component 63. This drives the second sealing plate 622 to move the guide plate 624, pushing the drive wheel 461 to disengage the plug plate 45 from the plug hole 44 and release the lock of the support column 43. Subsequently, the gravity of the water sampling bucket 1 is transferred to the slide bar 48 and connecting rope 49. The upward force acts on the valve core 52, causing it to move upward and enter the sealing hole 511 to close the flow hole, completing the sealed sampling. At the same time, the gravity of the counterweight ball 54 and the water pressure work together to overcome the magnetic attraction, slowly pulling down the valve core 52 to open the valve and allow water to enter. After the water sampling bucket 1 is full of water, the floating body 541 offsets part of the counterweight's gravity, assisting in valve stability. The entire process achieves depth-adaptive triggering, precise valve opening and closing, and interlayer physical isolation through a purely mechanical structure, allowing for the simultaneous acquisition of multiple layers of uncontaminated water samples in a single descent.

[0074] Example 2, as Figures 14 to 16 As shown, based on Embodiment 1, a slow-return component 67 is installed between two adjacent elastic rods 11 to extend the reset time of the elastic rods 11 after contraction. The slow-return component 67 prevents the elastic rods 11 from resetting before the water tank 1 is completely filled with water, causing the valve core 52 to block the sealing hole 511 and resulting in the inability to take out a large amount of water. The slow-return component 67 includes a first cylinder 673 rotatably mounted on the elastic rods 11 and a first sealing body 674 slidably mounted inside the first cylinder 673. A connecting shaft 675 rotatably connected to the adjacent elastic rods 11 is fixedly mounted on the first sealing body 674. A second cylinder 671 is fixedly mounted on the first cylinder 673 and a second sealing body 672 is slidably mounted on the second cylinder 671. Both the first cylinder 673 and the second cylinder 671 are filled with a transmission medium, and the hydraulic medium inside the first cylinder 673 and the second cylinder 671 exchanges with each other.

[0075] It should be noted that the first cylinder 673 and the second cylinder 671 are installed with the first conveying assembly 68 and the second conveying assembly 69, the first conveying assembly 68 makes the transmission medium in the first cylinder 673 and the second cylinder 671 flow clockwise, the second conveying assembly 69 makes the transmission medium in the first cylinder 673 and the second cylinder 671 flow counterclockwise, when the elastic rod 11 is compressed, the hydraulic medium at the bottom of the first cylinder 673 will be compressed into the inside of the second cylinder 671, at this time, the input is carried out through the first conveying assembly 68, and the flow permeability and the inner diameter size of the pipeline of the first conveying assembly 68 can be ensured, so that the hydraulic medium can flow quickly, that is, the compression speed of the elastic rod 11 is not affected, when the elastic rod 11 resets, the hydraulic medium in the first cylinder 673 and the second cylinder 671 flows counterclockwise through the second conveying assembly 69, and the second conveying assembly 69 can control the effective flow aperture thereof.

[0076] It should be noted that the smaller the effective flow aperture of the second conveying assembly 69 is, the smaller the flow of the hydraulic medium in unit time will be, and the reset of the elastic rod 11 needs to press the hydraulic medium in the first cylinder 673 into the second cylinder 671, and by reducing the flow aperture, the flow time can be increased, and then the reset speed is delayed.

[0077] Further, the first conveying assembly 68 includes the first circular pipe 681 which is in communication with the bottom of the first cylinder 673 and the second cylinder 671, the third one-way valve 682 is fixedly installed on the first circular pipe 681, the third one-way valve 682 makes the transmission medium in the first cylinder 673 unidirectionally enter the second cylinder 671, the second circular pipe 683 is fixedly installed at the top of the first cylinder 673 and the second cylinder 671, the fourth one-way valve 684 is fixedly installed on the second circular pipe 683, the fourth one-way valve 684 controls the transmission medium in the second cylinder 671 unidirectionally enter the first cylinder 673, when the elastic rod 11 is compressed, the hydraulic medium in the first cylinder 673 will enter the second cylinder 671 through the first circular pipe 681 and the third one-way valve 682, and the hydraulic medium in the first cylinder 673 will enter the inside of the first cylinder 673 through the second circular pipe 683 and the fourth one-way valve 684, when the elastic rod 11 resets, the flow direction of the hydraulic medium is opposite, at this time, under the action of the third one-way valve 682 and the fourth one-way valve 684, the hydraulic medium cannot flow through the first conveying assembly 68.

[0078] Further, the second conveying assembly 69 comprises a third circular tube 691 fixedly installed on the top of the first cylinder 673 and the second cylinder 671, a fifth one-way valve 692 fixedly installed on the third circular tube 691, the fifth one-way valve 692 controlling the hydraulic medium in the first cylinder 673 to unidirectionally enter the second cylinder 671, a fourth circular tube 693 fixedly installed on the bottom of the first cylinder 673 and the second cylinder 671, a sixth one-way valve 694 fixedly installed on the fourth circular tube 693, the sixth one-way valve 694 controlling the hydraulic medium in the second cylinder 671 to unidirectionally enter the first cylinder 673, a third valve 695 fixedly installed on the fourth circular tube 693, when the elastic rod 11 is reset, the hydraulic medium in the first cylinder 673 enters the second cylinder 671 through the third circular tube 691 and the fifth one-way valve 692, the hydraulic medium in the second cylinder 671 enters the first cylinder 673 through the third valve 695, the sixth one-way valve 694 and the fourth circular tube 693, and by controlling the opening and closing size of the third valve 695, the effective flow area of the second conveying assembly 69 can be controlled, and the appropriate opening size can be set according to the requirement, and when the elastic rod 11 is compressed, the hydraulic medium cannot pass through the second conveying assembly 69 under the action of the fifth one-way valve 692 and the sixth one-way valve 694.

[0079] The spool 52 is fixedly installed with an expansion rod 57, the slow return component 67 can be installed on the expansion rod 57, the descending speed of the spool 52 can be controlled, and the time of the spool 52 descending can be ensured to be sufficient for the water bucket 1 to be lowered to the specified depth.

[0080] The above specific embodiments are only several optional embodiments of the present application, based on the technical scheme of the present application and the related inspiration of the above embodiments, the person skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. An environmental water quality monitoring device, comprising a drift bottle (9), characterized in that, Also includes: Multiple water collection buckets (1) are connected to the drift bottle (9). Each water collection bucket (1) includes multiple elastic rods (11) that can be elastically deformed. The bottom of each elastic rod (11) is equipped with a support component (2) that supports the multiple elastic rods (11) and controls the contraction of the multiple elastic rods (11). The valve (5) installed on the top of the water bucket (1) includes a flow hole and a valve core (52) that blocks the flow hole. A counterweight ball (54) is fixedly installed at the bottom of the valve core (52). When the valve core (52) is not affected by external force, the counterweight ball (54) pulls the valve core (52) down and opens the flow hole. A suspension rod (31) is installed on multiple elastic rods (11). A tension conversion component (4) is installed above the water bucket (1). The tension conversion component (4) includes a mounting plate (42), a support column (43) slidably installed on the mounting plate (42), and a connector installed on the mounting plate (42) and inserted into the support column (43). The support column (43) and the suspension rod (31) are fixedly connected by a traction rope (47). A sliding rod (48) with limited sliding distance is slidably installed on the mounting plate (42). The sliding rod (48) and the valve core (52) are fixedly connected by a connecting rope (49). A starting component (6) is installed at the top of two adjacent elastic rods (11). The starting component (6) controls the insertion state of the connector and the support column (43) according to the contraction of the top of the elastic rod (11).

2. The environmental water quality indicator monitoring device according to claim 1, characterized in that, The valve (5) includes a valve body (51) fixedly installed on the top of the water tank (1). The flow hole includes a sealing hole (511) provided in the valve body (51) and a connecting hole (512) with an inner diameter larger than the sealing hole (511). A limiting ring (513) is provided at the top of the sealing hole (511). The valve core (52) is slidably installed inside the sealing hole (511). A sealing ring (521) is fixedly installed on the valve core (52).

3. The environmental water quality indicator monitoring device according to claim 2, characterized in that, A sealing ring (521) is fixedly installed on the valve core (52). The valve core (52) is fixedly connected to the counterweight ball (54) through a connecting strip (53). A floating body (541) is fixedly installed on the connecting strip (53). A magnetic ring (55) is fixedly installed inside the limiting ring (513). An iron sheet (56) is fixedly installed on the valve core (52).

4. The environmental water quality indicator monitoring device according to claim 3, characterized in that, The tension conversion component (4) includes a housing (41), a housing mounting plate (42) is fixedly installed inside the housing (41), a support column (43) is provided with a plurality of insertion holes (44), an insertion plate (45) is slidably installed on the mounting plate (42), a plurality of rolling elements (451) are rotatably installed on the insertion plate (45), an extension rod (46) is fixedly installed on the insertion plate (45), and a drive wheel (461) is rotatably installed on the extension rod (46).

5. The environmental water quality indicator monitoring device according to claim 4, characterized in that, The starting component (6) includes a detection mechanism (61) for detecting whether the elastic rod (11) is hydraulically compressed or reset, and a transmission mechanism (62) linked with the detection mechanism. The transmission mechanism (62) does not drive the plug plate (45) to move when the elastic rod (11) is compressed and contracted, and drives the plug plate (45) to leave the plug hole (44) after the elastic rod (11) is reset.

6. The environmental water quality indicator monitoring device according to claim 5, characterized in that, The detection mechanism (61) includes a detection cylinder (611) rotatably mounted on an elastic rod (11), a first sealing plate (612) is slidably mounted inside the detection cylinder (611), a round rod (613) is fixedly mounted on the first sealing plate (612), and the round rod (613) is rotatably connected to the adjacent elastic rod (11).

7. The environmental water quality indicator monitoring device according to claim 6, characterized in that, The transmission mechanism (62) includes a first transmission cylinder (621) fixedly installed inside the housing (41), a second sealing plate (622) slidably installed inside the first transmission cylinder (621), a drive rod (623) fixedly installed on the second sealing plate (622), a guide plate (624) obliquely arranged and slidably connected to the drive wheel (461) fixedly installed on the drive rod (623), a second transmission cylinder (625) fixedly installed inside the housing (41), and a third sealing plate (626) slidably installed inside the second transmission cylinder (625). The bottom of the first transmission cylinder (621) and the space between the second sealing plate (622), the space between the second transmission cylinder (625) and the third sealing plate (626), and the space between the bottom of the detection cylinder (611) and the first sealing plate (612) are all filled with transmission medium. The first transmission cylinder (621) is equipped with a first conveying assembly (63) that drives the transmission medium into the interior of the first transmission cylinder (621) when the first sealing plate (612) moves in the forward direction, and the second transmission cylinder (625) is equipped with a second conveying assembly (64) that drives the hydraulic medium into the interior of the second transmission cylinder (615) when the first sealing plate (612) moves in the reverse direction.

8. The environmental water quality indicator monitoring device according to claim 7, characterized in that, The first conveying assembly (63) includes a first three-way connector (631) fixedly installed on the first transmission cylinder (621), a first one-way valve (632) fixedly installed on the first three-way connector (631), a second three-way connector (633) fixedly installed on the first one-way valve (632), a first pipe (634) fixedly installed between the first three-way connector (631) and the second three-way connector (633), a first valve (635) fixedly installed on the first pipe (634), the first one-way valve (632) allows liquid to leave the interior of the first transmission cylinder (621) in one direction, and a first conveying pipe (65) fixedly installed between the detection cylinder (611) and the second three-way connector (633). The second conveying assembly (64) includes a third three-way connector (641) fixedly installed on the second transmission cylinder (625), a second one-way valve (642) fixedly installed on the third three-way connector (641), and a fourth three-way connector (643) fixedly installed on the second one-way valve (642). A second pipe (644) is fixedly installed between the fourth three-way connector (643) and the third three-way connector (641). A second valve (645) is fixedly installed on the second pipe (644). The second one-way valve (642) allows liquid to enter the second transmission cylinder (625) in one direction. A second conveying pipe (66) is fixedly installed between the detection cylinder (611) and the fourth three-way connector (643).

9. The environmental water quality indicator monitoring device according to claim 8, characterized in that, A slow-return component (67) is installed between two adjacent elastic rods (11) to extend the reset time of the elastic rods (11) after contraction. The slow-return component (67) includes a first cylinder (673) rotatably mounted on the elastic rod (11) and a first sealing body (674) slidably mounted inside the first cylinder (673). A connecting shaft (675) rotatably connected to the adjacent elastic rod (11) is fixedly mounted on the first sealing body (674). A second cylinder (671) is fixedly mounted on the first cylinder (673), and a second sealing body (672) is slidably mounted on the second cylinder (671). The first cylinder (673) and the second cylinder (671) are both filled with a transmission medium. A first conveying assembly (68) and a second conveying assembly (69) are installed between the first cylinder (673) and the second cylinder (671). The first conveying assembly (68) causes the transmission medium in the first cylinder (673) and the second cylinder (671) to flow clockwise, and the second conveying assembly (69) causes the transmission medium in the first cylinder (673) and the second cylinder (671) to flow counterclockwise.

10. The environmental water quality indicator monitoring device according to claim 9, characterized in that, The first conveying assembly (68) includes a first circular tube (681) communicating with the bottom of the first cylinder (673) and the second cylinder (671). A third one-way valve (682) is fixedly installed on the first circular tube (681). The third one-way valve (682) allows the transmission medium in the first cylinder (673) to enter the second cylinder (671) in one direction. A second circular tube (683) is fixedly installed on the top of the first cylinder (673) and the second cylinder (671). A fourth one-way valve (684) is fixedly installed on the second circular tube (683). The fourth one-way valve (684) controls the transmission medium in the second cylinder (671) to enter the first cylinder (673) in one direction. The second conveying assembly (69) includes a third circular tube (691) fixedly installed on the top of the first cylinder (673) and the second cylinder (671). A fifth one-way valve (692) is fixedly installed on the third circular tube (691). The fifth one-way valve (692) controls the hydraulic medium inside the first cylinder (673) to enter the second cylinder (671) in one direction. A fourth circular tube (693) is fixedly installed at the bottom of the first cylinder (673) and the second cylinder (671). A sixth one-way valve (694) is fixedly installed on the fourth circular tube (693). The sixth one-way valve (696) controls the hydraulic medium inside the second cylinder (671) to enter the first cylinder (673) in one direction. A third valve (695) is fixedly installed on the fourth circular tube (693).

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