Water pollutant sampling device for ecological management

Abstract

The invention provides a water pollutant sampling device for ecological management, and belongs to the technical field of sampling devices. The sampler aims to overcome the defects existing in the using process of an existing sampler. Comprising a connecting rod; the mounting block is arranged on the connecting rod; the two connecting shells are symmetrically distributed and rotationally connected to the two sides of the mounting block correspondingly, and torsional springs are arranged between the connecting shells and the mounting block; the two sampling shells are symmetrically distributed and are respectively connected to the adjacent connecting shells in a sliding manner; the connecting assembly is arranged on the mounting block, and the connecting assembly is used for driving the two sampling shells to move. When one connecting shell encounters a stone, the connecting shell is intercepted by the stone to drive the adjacent torsional spring to twist and store force, meanwhile, under the action of the torsional spring, the mounting block drives the connecting shell to move, and the sampling shell collects sludge on a moving path, so that the sampling work is smoothly completed.

Description

Technical Field

[0001] The invention relates to the technical field of sampling devices, and in particular to a sampling device for pollutants in water used for ecological treatment. Background Art

[0002] The sludge on the bottom of the water is the result of long-term sedimentation of pollutants in the water. It contains various organic matter, heavy metals, nutrients and persistent organic pollutants. The accumulation of these pollutants in the sludge not only threatens the survival of benthic organisms, causing them to be poisoned or die, but in severe cases it also affects the food chain structure of the entire aquatic ecosystem. Therefore, when conducting water quality testing, in addition to sampling and testing the water body itself, it is also necessary to sample and test the sludge on the bottom of the water.

[0003] When using a sampler to sample the sludge at the bottom of a river, the surface sludge is directly exposed to the water and is more likely to be attached to pollutants that have recently entered the water than the deep sludge. Therefore, collecting surface sludge samples is crucial for assessing recent pollution conditions. During normal use of the sampler, when the sampler comes into contact with rocks at the bottom of the river, it will cause the sampler to tilt or deflect, thereby changing its predetermined sampling position, or even causing the sampler to tip over, resulting in sampling failure. At the same time, the sampler will also disturb the sludge at the bottom of the water during the tilting or deflection process, causing the originally clearly layered sludge to become turbid, thereby destroying the original structure of the sediment and affecting the accuracy of subsequent sampling. Summary of the invention

[0004] In order to overcome the shortcomings of the existing samplers during use, the present invention provides a pollutant sampling device for water used in ecological management.

[0005] The technical solution of the present invention is: a device for sampling pollutants in water for ecological treatment, comprising:

[0006] link;

[0007] A mounting block, disposed on the connecting rod;

[0008] A connecting shell having two symmetrically distributed parts, which are rotatably connected to two sides of the mounting block respectively, and a torsion spring is arranged between the connecting shell and the mounting block;

[0009] The sampling shells have two symmetrically distributed ones, which are respectively slidably connected to the adjacent connecting shells;

[0010] A connecting component is arranged on the mounting block, and the connecting component is used for driving the two sampling shells to move.

[0011] As a preferred technical solution of the present invention, an inclined surface is provided at the port of the sampling shell to reduce the resistance encountered by the sampling shell during the sampling process.

[0012] As a preferred technical solution of the present invention, the connection assembly includes:

[0013] The first hydraulic push rods have two symmetrically distributed ones, which are respectively embedded in the adjacent connecting shells. The telescopic end of the first hydraulic push rod is fixedly connected to the adjacent sampling shell. The sampling shell and the fixing part of the adjacent first hydraulic push rod are jointly fixedly connected with a tension spring.

[0014] As a preferred technical solution of the present invention, the connection assembly further includes:

[0015] A fixed shell, fixedly connected to the mounting block, and the connecting rod is slidably connected to the fixed shell;

[0016] A movable plate is sealingly and slidably connected to the fixed shell, the movable plate is located on the moving path of the connecting rod, the movable plate and the fixed shell jointly form a liquid storage cavity, the liquid storage cavity of the fixed shell is communicated with the two first hydraulic push rod fixing parts through a hose, a first spring is fixedly connected between the movable plate and the fixed shell, and the first spring is located in the liquid storage cavity of the fixed shell;

[0017] A second spring, fixed between the fixed housing and the connecting rod;

[0018] A current limiting component is arranged in the fixed shell, and the current limiting component is used to reduce the moving speed of the moving plate.

[0019] As a preferred technical solution of the present invention, the current limiting component includes:

[0020] A liquid storage shell is fixedly connected to the fixed shell, and the liquid storage shell is located in the liquid storage cavity of the fixed shell;

[0021] An extrusion piece is sealingly and slidably connected to the liquid storage shell, the extrusion piece is fixedly connected to the movable plate, and the extrusion piece is provided with at least two flow holes, and a one-way valve is installed in the flow hole.

[0022] As a preferred technical solution of the present invention, the diameters of two adjacent flow holes are different, and the flow directions of two adjacent one-way valves are opposite.

[0023] As a preferred technical solution of the present invention, it also includes:

[0024] A blocking mechanism is provided on the mounting block, and is used to block the two sampling shells after sampling is completed. The blocking mechanism includes:

[0025] Two closed doors are symmetrically distributed and are respectively slidably connected to the adjacent sampling shells;

[0026] The first telescopic rod has two symmetrically distributed ones, and the two sampling shells are fixedly connected to a connecting seat. The first telescopic rod is rotatably connected to the connecting seat of the adjacent sampling shell. The fixed part of the first telescopic rod is fixedly connected to the second telescopic rod, and the telescopic part of the first telescopic rod is hinged to the adjacent closed door.

[0027] As a preferred technical solution of the present invention, the blocking mechanism further includes:

[0028] The second hydraulic push rods have two symmetrically distributed ones, which are respectively fixed to the adjacent sampling shells, and the telescopic ends of the second hydraulic push rods are hinged to the telescopic ends of the adjacent second telescopic rods;

[0029] A fluid reservoir is fixedly connected to the connecting rod, a third spring is fixedly connected inside the fluid reservoir, and the fluid reservoir is connected to the fixing parts of the two second hydraulic push rods through a hose.

[0030] As a preferred technical solution of the present invention, the first telescopic rod and the second telescopic rod are both multi-stage telescopic rods, and the maximum length of the first telescopic rod is greater than the maximum length of the second telescopic rod, so as to increase the moving distance of the closed door.

[0031] As a preferred technical solution of the present invention, the liquid reservoir is composed of two rigid circular plates and a flexible bellows therebetween, and the elastic coefficient of the third spring is smaller than the elastic coefficient of the first spring.

[0032] Compared with the prior art, the present invention has at least the following beneficial effects: when one of the connecting shells encounters a stone, the connecting shell is intercepted by the stone and drives the adjacent torsion spring to twist and store force; at the same time, under the action of the torsion spring, the mounting block drives the connecting shell to move, and the sampling shell collects the silt on the moving path, thereby successfully completing the sampling work.

[0033] The adjacent sampling shells are sealed by closing the doors to maintain the integrity of the sludge taken in the sampling shells, and to prevent the sludge samples taken in the sampling shells from leaking outwards during the upward movement of the overall device, thereby affecting the final sampling results. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0035] Figure 2 It is a three-dimensional structural cross-sectional view of the mounting block and the connecting shell of the present invention;

[0036] Figure 3 A three-dimensional structural cross-sectional view of the sampling shell of the present invention;

[0037] Figure 4 It is a three-dimensional structural cross-sectional view of the fixed shell of the present invention;

[0038] Figure 5 It is a three-dimensional structural cross-sectional view of the liquid storage shell of the present invention;

[0039] Figure 6 It is a three-dimensional structural cross-sectional view of the liquid storage device of the present invention.

[0040] Marked in the figure: 1-connecting rod, 2-mounting block, 3-connecting shell, 4-sampling shell, 5-torsion spring, 6-first hydraulic push rod, 61-tension spring, 7-fixed shell, 9-movable plate, 10-first spring, 11-second spring, 111-liquid storage shell, 112-extrusion piece, 113-circulation hole, 114-check valve, 12-closing door, 13-first telescopic rod, 14-second telescopic rod, 15-second hydraulic push rod, 16-liquid reservoir, 17-third spring. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope and application scope of the present invention are not limited.

[0042] A device for sampling pollutants in water for ecological management, such as Figure 1-Figure 3 As shown, it includes: a connecting rod 1; a mounting block 2, which is arranged on the connecting rod 1; a connecting shell 3, which has two symmetrically distributed ones, which are rotatably connected to the two sides of the mounting block 2, and a torsion spring 5 is arranged between the connecting shell 3 and the mounting block 2, and a rubber ball is arranged on the side of the connecting shell 3 close to the mounting block 2; a sampling shell 4, which has two symmetrically distributed ones, which are slidably connected to the adjacent connecting shells 3; a connecting component, which is arranged on the mounting block 2, and the connecting component is used to drive the two sampling shells 4 to move.

[0043] In the above scheme, the mounting block 2 is a weight block, which is used to maintain the stability of the entire device during the downward movement, so that the entire device can smoothly fall into the designated sampling area; the mounting block 2 and the lower sides of the two connecting shells 3 are provided with inclined surfaces symmetrically distributed front and back, so that the mounting block 2 and the lower sides of the two connecting shells 3 can be moved below the surface of the riverbed, and the two connecting shells 3 are symmetrically distributed left and right. The rubber balls on the connecting shells 3 are used to reduce the impact force when the connecting shells 3 contact the mounting block 2; the torsion force of the torsion spring 5 is greater than the gravity of a single connecting shell 3, so that the connecting shell 3 can be reset under the action of the adjacent torsion spring 5 after rotation and without being blocked by stones.

[0044] Further, such as Figure 2 and Figure 3 As shown, an inclined surface is provided at the port of the sampling shell 4 to reduce the resistance encountered by the sampling shell 4 during the sampling process, thereby ensuring that the sampling shell 4 can sample smoothly.

[0045] The specific workflow of the above scheme is as follows:

[0046] When it is necessary to use the device to take samples in a designated area of ​​a river, the staff connects the connecting rod 1 to the pull rope of the existing winch, and then controls the winch to release the pull rope wound thereon, so that the connecting rod 1 moves downward, and the connecting rod 1 drives the two connecting shells 3 to move synchronously through the mounting block 2. During this process, when one of the connecting shells 3 contacts the stones on the riverbed (at this time, the mounting block 2 and the two connecting shells 3 have not moved downward to the position in contact with the riverbed, and the contact between the left connecting shell 3 and the stone is taken as an example for description), the left connecting shell 3 is intercepted by the stone and rotates clockwise relative to the mounting block 2, and the torsion spring 5 on the left is twisted to store force, and at the same time, under the action of the torsion spring 5, the mounting block 2 drives the connecting shells 3 on the left and right sides to move synchronously to the right.

[0047] After the mounting block 2 moves downward to contact the riverbed, the mounting block 2 and the inclined surface of the lower side of the right connecting shell 3 squeeze the silt on the surface of the riverbed (the silt on the surface of the riverbed is softer than the silt on the lower side, and thus cannot provide stable support for the device), so that the mounting block 2 and the lower side of the right connecting shell 3 move downward to below the surface of the riverbed, and at the same time, part of the silt on the riverbed moves into the sampling shell 4 on the right (in this process, the mounting block 2 will still drive the connecting shells 3 on the left and right sides to move to the right), until the sludge on the riverbed can provide stable support for the mounting block 2 and other parts connected thereto, and the mounting block 2 and other parts connected thereto no longer continue to move downward.

[0048] After the above-mentioned mounting block 2 stops moving downward, the staff controls the winch to release a sufficient amount of pull rope so that the mounting block 2 is not affected by the tension of the pull rope. At the same time, the connecting shell 3 on the left is still in contact with the stone. Then the torsion spring 5 on the left begins to drive the connecting shell 3 on the left to rotate counterclockwise, and the stone continues to provide resistance to the connecting shell 3 during the counterclockwise rotation of the connecting shell 3, so that the connecting shell 3 on the left drives the mounting block 2 and the connecting shell 3 on the right to continue to move to the right, and collects the silt on the riverbed into the sampling shell 4 on the right.

[0049] After releasing a sufficient amount of pull rope on the above-mentioned winch, the connecting assembly works to move the two sampling shells 4 away from each other, so that during the movement of the sampling shell 4, the sludge is collected into the sampling shell 4 on the right, and the sampling of the riverbed sludge is completed. After the sampling is completed, the staff controls the winch to pull the connecting rod 1 upward through the pull rope to move the connecting rod 1 out of the water, and performs subsequent treatment on the collected sludge, and then repeats the above operation to select sludge samples from different areas. After the sampling work is completed using the device, the staff cleans and maintains the device for subsequent continued use.

[0050] like Figure 2-Figure 4As shown, the connecting component includes: a first hydraulic push rod 6, having two symmetrically distributed ones, which are respectively embedded in adjacent connecting shells 3, the telescopic end of the first hydraulic push rod 6 is fixedly connected to the adjacent sampling shell 4, and the sampling shell 4 and the fixed part of the adjacent first hydraulic push rod 6 are commonly fixedly connected with a tension spring 61; a fixed shell 7, which is fixedly connected to the mounting block 2, and the connecting rod 1 is slidably connected to the fixed shell 7; a movable plate 9, which is sealed and slidably connected in the fixed shell 7, and the movable plate 9 is located on the moving path of the connecting rod 1, and the movable plate 9 and the fixed shell 7 jointly form a liquid storage chamber, and the liquid storage chamber of the fixed shell 7 is connected to the two fixed parts of the first hydraulic push rods 6 through a hose, and a first spring 10 is fixedly connected between the movable plate 9 and the fixed shell 7, and the first spring 10 is located in the liquid storage chamber of the fixed shell 7; a second spring 11, which is fixedly connected between the fixed shell 7 and the connecting rod 1; a current limiting component, which is arranged in the fixed shell 7, and the current limiting component is used to reduce the moving speed of the movable plate 9.

[0051] In the above scheme, the two first hydraulic push rods 6 are symmetrically distributed on the left and right; the two tension springs 61 make the telescopic ends of the two first hydraulic push rods 6 extend to the same length; the fixed shell 7 is located on the upper side of the mounting block 2, and hydraulic oil is stored in the liquid storage cavity of the fixed shell 7; the movable plate 9 is located below the connecting rod 1, and the connecting rod 1 is not in contact with the movable plate 9 initially; the liquid storage cavity of the fixed shell 7 and the first spring 10 are both located on the lower side of the movable plate 9; the second spring 11 is in a relaxed state initially (the second spring 11 in the figure is in a compressed state, that is, in a hoisting state).

[0052] The specific workflow of the above scheme is as follows:

[0053] When it is necessary to use this device to sample the sludge on the riverbed, the staff connects the pull rope on the winch to the upper end of the connecting rod 1, and then the staff controls the winch to drive the connecting rod 1 to move upward through the pull rope, so that the connecting rod 1 squeezes the second spring 11 (in this process, the connecting rod 1 moves upward relative to the mounting block 2), until the second spring 11 is compressed to the limit state, the connecting rod 1 drives the mounting block 2 to move upward synchronously through the second spring 11 and the fixed shell 7. After the mounting block 2 is lifted, the winch is controlled to move the mounting block 2 above the river surface, and then the mounting block 2 is moved to the riverbed according to the above operation.

[0054] After the mounting block 2 stops moving downward, as the length of the rope released by the winch increases, the movable range of the connecting rod 1 increases synchronously. In the process of converting the rope from a tensioned state to a relaxed state, the connecting rod 1 moves downward along the fixed shell 7 under the action of its own gravity and the elastic force of the second spring 11. After the connecting rod 1 moves downward until it contacts the movable plate 9, the movable plate 9 moves downward synchronously due to the extrusion force of the connecting rod 1, and compresses the first spring 10 to store force, thereby squeezing the hydraulic oil in the liquid storage chamber of the fixed shell 7, so that the hydraulic oil in the liquid storage chamber of the fixed shell 7 is discharged through the hose. Liquid flows in the fixed parts of the two first hydraulic push rods 6, so that the telescopic ends of the two first hydraulic push rods 6 respectively drive the adjacent sampling shells 4 to move, and stretch the adjacent tension springs 61, so that the two sampling shells 4 collect the sludge in the external environment. When the second spring 11 recovers to the uncompressed state, the connecting rod 1 moves downward to the limit position, and the moving plate 9 moves downward to the limit position synchronously, that is, the telescopic ends of the two first hydraulic push rods 6 respectively drive the adjacent sampling shells 4 to move to the limit position. After the two sampling shells 4 move to the limit position, the sampling operation is completed.

[0055] After the sampling is completed as mentioned above, the staff controls the winch to retract the released pull rope and drive the connecting rod 1 to move upward, so that the second spring 11 is compressed and stored, and at the same time, the movable plate 9 is reset upward under the action of the first spring 10, and then the hydraulic oil delivered to the fixed parts of the two first hydraulic push rods 6 is drawn back into the liquid storage chamber of the fixed shell 7, so that the telescopic end of the first hydraulic push rod 6 drives the adjacent sampling shell 4 to move into the adjacent connecting shell 3. In this process, the two tension springs 61 gradually return to the unstretched state. When the first spring 10 returns to the uncompressed state, the movable plate 9 is reset upward to the initial position. At this time, the second spring 11 can still be compressed. When the second spring 11 is compressed to the limit state, the connecting rod 1 moves upward to the limit position relative to the fixed shell 7. At this time, the connecting rod 1 drives the mounting block 2 to move upward synchronously through the second spring 11 and the fixed shell 7, so that the taken sludge is collected and the sludge is subsequently processed by the staff.

[0056] Further, such as Figure 4-Figure 6 As shown, the flow limiting component includes: a liquid storage shell 111, which is fixedly connected to the fixed shell 7, and the liquid storage shell 111 is located in the liquid storage cavity of the fixed shell 7; an extrusion piece 112, which is sealingly and slidably connected to the liquid storage shell 111, and the extrusion piece 112 is fixedly connected to the movable plate 9. The extrusion piece 112 is provided with at least two flow holes 113, and a one-way valve 114 is installed in the flow hole 113. The diameters of two adjacent flow holes 113 are different, and the flow directions of two adjacent one-way valves 114 are opposite.

[0057] In the above scheme, hydraulic oil is stored in the liquid storage shell 111, and the number of flow holes 113 is represented in the figure and the text by taking two distributed on the left and right as an example, wherein the diameter of the left flow hole 113 is smaller than the diameter of the right flow hole 113; the flow direction of the left one-way valve 114 is from top to bottom, and the flow direction of the right one-way valve 114 is from bottom to top; in the process of the above-mentioned moving plate 9 moving downward, the moving plate 9 drives the extrusion piece 112 to move downward, so that the hydraulic oil in the liquid storage shell 111 flows through the flow hole 113 on the right and the one-way valve 114 on the right, and in the process of the moving plate 9 resetting upward, the hydraulic oil in the liquid storage shell 111 flows through the flow hole 113 on the left and the one-way valve 114 on the left, thereby reducing the speed of the extrusion piece 112 moving upward, and then reducing the speed of the moving plate 9 resetting upward, so that the telescopic ends of the two first hydraulic push rods 6 slowly retract, so that the two sampling shells 4 are slowly reset, and the integrity of the samples taken by the sampling shells 4 is ensured.

[0058] Further, such as Figure 2-Figure 5 As shown, it also includes: a blocking mechanism, which is arranged on the mounting block 2, and the blocking mechanism is used to block the two sampling shells 4 after the sampling is completed. The blocking mechanism includes: a closed door 12, which has two symmetrically distributed ones, which are respectively slidably connected to the adjacent sampling shells 4; a first telescopic rod 13, which has two symmetrically distributed ones, and the two sampling shells 4 are both fixedly connected to a connecting seat, and the first telescopic rod 13 is rotatably connected to the connecting seat of the adjacent sampling shell 4, and the fixed part of the first telescopic rod 13 is fixedly connected to the second telescopic rod 14, and the telescopic part of the first telescopic rod 13 is hinged to the adjacent closed door 12; a second hydraulic push rod 15, which has two symmetrically distributed ones, which are respectively fixedly connected to the adjacent sampling shells 4, and the telescopic end of the second hydraulic push rod 15 is hinged to the telescopic end of the adjacent second telescopic rod 14 ; The first telescopic rod 13 and the second telescopic rod 14 are both multi-stage telescopic rods, and the maximum length of the first telescopic rod 13 is greater than the maximum length of the second telescopic rod 14, which is used to increase the moving distance of the closed door 12; the liquid reservoir 16 is fixedly connected to the connecting rod 1, and the liquid reservoir 16 is composed of two upper and lower rigid circular plates and a flexible bellows therebetween. A third spring 17 is fixedly connected to the liquid reservoir 16, and the third spring 17 is located between the two rigid circular plates of the liquid reservoir 16, so that the liquid reservoir 16 can be reset to the initial state under the action of the third spring 17 after deformation. The elastic coefficient of the third spring 17 is smaller than the elastic coefficient of the first spring 10, ensuring that the liquid reservoir 16 is squeezed first, and the liquid reservoir 16 is connected to the fixed parts of the two second hydraulic push rods 15 through a hose.

[0059] In the above scheme, the closed door 12 is used to seal the adjacent sampling shell 4 to prevent the sample taken from the sampling shell 4 from leaking outward. Initially, the closed door 12 seals the sampling shell 4; initially, the second telescopic rod 14 is in an extended state, and the first telescopic rod 13 is in a retracted state, and the first telescopic rod 13 and the adjacent second telescopic rod 14 form a lever structure on the adjacent sampling shell 4; hydraulic oil is stored in the liquid reservoir 16, and the connecting pipe between the liquid reservoir 16 and the fixed parts of the two second hydraulic push rods 15 passes through the connecting rod 1.

[0060] The specific workflow of the above scheme is as follows:

[0061] In the process of the connecting rod 1 moving downward, the connecting rod 1 drives the reservoir 16 to move downward synchronously. When the reservoir 16 moves downward to contact the movable plate 9, the movable plate 9 and the connecting rod 1 jointly squeeze the reservoir 16, so that the hydraulic oil in the reservoir 16 flows into the fixed parts of the two second hydraulic push rods 15 through the hose, so that the telescopic ends of the two second hydraulic push rods 15 extend outward. The following is a description of the movement process of the telescopic end of the left second hydraulic push rod 15 as an example:

[0062] The telescopic end of the second hydraulic push rod 15 pushes the telescopic end of the second telescopic rod 14 to the left, so that the telescopic end of the second telescopic rod 14 moves into its fixed part, and the second telescopic rod 14 drives the fixed part of the first telescopic rod 13 to rotate around the connection between it and the sampling shell 4 (counterclockwise), thereby changing the angle between the first telescopic rod 13 and the sampling shell 4, increasing the height of the telescopic end of the first telescopic rod 13, extending the telescopic end of the first telescopic rod 13, and driving the closed door 12 to move upward by the telescopic end of the first telescopic rod 13, thereby opening the sampling shell 4 on the left side, and allowing the sludge to enter the sampling shell 4 on the left side.

[0063] When the fluid reservoir 16 is compressed to the limit state, the third spring 17 is compressed to the limit state, and the connecting rod 1 drives the movable plate 9 to continue to move downward through the compressed fluid reservoir 16, and transports the hydraulic oil in the fluid storage chamber of the fixed shell 7 to the fixed parts of the two first hydraulic push rods 6.

[0064] After the above sampling is completed, the staff controls the winch to drive the connecting rod 1 to move upward, and the first spring 10 drives the movable plate 9 to move slowly upward, so that the two sampling shells 4 are slowly reset (in this process, the liquid reservoir 16 is squeezed by the movable plate 9 and the connecting rod 1 and cannot be reset), until the movable plate 9 no longer moves upward, the squeezing force on the liquid reservoir 16 gradually decreases, so that the liquid reservoir 16 is reset to the initial state under the action of the third spring 17, and the hydraulic oil in the fixed part of the two second hydraulic push rods 15 is extracted, so that the telescopic ends of the two second hydraulic push rods 15 respectively drive the adjacent closed doors 12 to move downward through the adjacent second telescopic rod 14 and the adjacent first telescopic rod 13 (in this process, the telescopic end of the second telescopic rod 14 extends, and the telescopic end of the first telescopic rod 13 contracts), and the two closed doors 12 respectively block the adjacent sampling shells 4 to maintain the integrity of the sludge taken in the sampling shell 4, and avoid the sludge sample taken in the sampling shell 4 from leaking out during the upward movement of the overall device, thereby affecting the final sampling result.

[0065] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and its improved conception, which should be covered by the protection scope of the present application.

Claims

1. A device for sampling pollutants in water used for ecological management, characterized in that it comprises: Connecting rod (1); A mounting block (2) is arranged on the connecting rod (1); The connecting shell (3) has two symmetrically distributed ones, which are rotatably connected to the two sides of the mounting block (2) respectively, and a torsion spring (5) is arranged between the connecting shell (3) and the mounting block (2); The sampling shells (4) have two symmetrically distributed ones, which are respectively slidably connected to the adjacent connecting shells (3); A connecting component is arranged on the mounting block (2), and the connecting component is used to drive the two sampling shells (4) to move.

2. The device for sampling pollutants in water used for ecological management according to claim 1 is characterized in that: An inclined surface is provided at the port of the sampling shell (4) for reducing the resistance encountered by the sampling shell (4) during the sampling process.

3. The device for sampling pollutants in water used for ecological management according to claim 1 is characterized in that: The connection component comprises: The first hydraulic push rod (6) has two symmetrically distributed ones, which are respectively embedded in the adjacent connecting shells (3). The telescopic end of the first hydraulic push rod (6) is fixedly connected to the adjacent sampling shell (4). The sampling shell (4) and the fixing part of the adjacent first hydraulic push rod (6) are jointly fixedly connected with a tension spring (61).

4. The device for sampling pollutants in water used for ecological management according to claim 3 is characterized in that: The connection component also includes: A fixed shell (7) is fixedly connected to the mounting block (2), and the connecting rod (1) is slidably connected to the fixed shell (7); A movable plate (9) is sealingly and slidably connected to the fixed shell (7). The movable plate (9) is located on the moving path of the connecting rod (1). The movable plate (9) and the fixed shell (7) together form a liquid storage cavity. The liquid storage cavity of the fixed shell (7) is connected to the fixed parts of the two first hydraulic push rods (6) through a hose. A first spring (10) is fixedly connected between the movable plate (9) and the fixed shell (7). The first spring (10) is located in the liquid storage cavity of the fixed shell (7). A second spring (11) is fixedly connected between the fixed housing (7) and the connecting rod (1); A current limiting component is arranged in the fixed shell (7), and the current limiting component is used to reduce the moving speed of the moving plate (9).

5. The device for sampling pollutants in water used for ecological management according to claim 4 is characterized in that: The current limiting component comprises: A liquid storage shell (111) is fixedly connected to the fixed shell (7), and the liquid storage shell (111) is located in the liquid storage cavity of the fixed shell (7); An extrusion piece (112) is sealingly and slidably connected to the liquid storage shell (111), the extrusion piece (112) is fixedly connected to the movable plate (9), and the extrusion piece (112) is provided with at least two flow holes (113), and a one-way valve (114) is installed in the flow hole (113).

6. The device for sampling pollutants in water used for ecological management according to claim 5 is characterized in that: The diameters of two adjacent flow holes (113) are different, and the flow directions of two adjacent one-way valves (114) are opposite.

7. The ecological water pollution sampling device according to claim 4 is characterized in that: include: A blocking mechanism is arranged on the mounting block (2), and is used to block the two sampling shells (4) after sampling is completed. The blocking mechanism comprises: Two closed doors (12) are symmetrically distributed and are respectively slidably connected to the adjacent sampling shells (4); The first telescopic rod (13) has two symmetrically distributed ones, and the two sampling shells (4) are both fixedly connected to a connecting seat. The first telescopic rod (13) is rotatably connected to the connecting seat of the adjacent sampling shell (4), the fixed part of the first telescopic rod (13) is fixedly connected to the second telescopic rod (14), and the telescopic part of the first telescopic rod (13) is hinged to the adjacent closed door (12).

8. The device for sampling pollutants in water used for ecological management according to claim 7 is characterized in that: The blocking mechanism also includes: Two second hydraulic push rods (15) are symmetrically distributed and respectively fixed to adjacent sampling shells (4); the telescopic end of the second hydraulic push rod (15) is hinged to the telescopic end of the adjacent second telescopic rod (14); The liquid reservoir (16) is fixedly connected to the connecting rod (1), a third spring (17) is fixedly connected inside the liquid reservoir (16), and the liquid reservoir (16) is connected to the fixed parts of the two second hydraulic push rods (15) through a hose.

9. The device for sampling pollutants in water used for ecological management according to claim 8 is characterized in that: The first telescopic rod (13) and the second telescopic rod (14) are both multi-stage telescopic rods, and the maximum length of the first telescopic rod (13) is greater than the maximum length of the second telescopic rod (14), so as to increase the moving distance of the closed door (12).

10. The device for sampling pollutants in water used for ecological management according to claim 8, characterized in that: The liquid reservoir (16) is composed of two rigid circular plates and a flexible bellows therebetween, and the elastic coefficient of the third spring (17) is smaller than the elastic coefficient of the first spring (10).

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