Anti-pollution sampler for water conservancy project river regulation

Abstract

The invention relates to the technical field of river regulation, and discloses an anti-pollution sampler for water conservancy project river regulation, which comprises an operation panel, a sampling long rod fixedly mounted at the bottom of the operation panel, a sampling part arranged at the bottom of the sampling long rod, and a filtering part arranged on the surface of the sampling part, and the dismounting part is arranged between the bottom of the operation board and the sampling long rod and the sampling part. According to the anti-pollution sampler for water conservancy project river regulation, the annular filter plate is arranged on the surface of the liquid inlet, so that impurities such as silt and plant remains in water can be effectively intercepted, a water sample entering the sampling cavity is purer, the water quality condition of a water resource can be truly reflected, and a high-quality sample is provided for subsequent water quality detection and analysis; and meanwhile, when a water source is sampled at the liquid inlet, the annular filter plate synchronously shields, so that sampling and filtering are synchronously carried out, additional operation of the filter device is not needed, the sampling process is simplified, the sampling efficiency is improved, and the labor and time cost is saved.

Description

Technical Field

[0001] The invention relates to the technical field of river channel regulation, in particular to an anti-pollution sampler for river channel regulation in water conservancy projects. Background Art

[0002] Rivers are important channels for flood discharge and discharge. Through reasonable river management, such as widening rivers and strengthening river embankments, the flood discharge capacity of rivers can be increased and the impact of floods on surrounding areas can be reduced. Healthy river ecosystems are essential for maintaining biodiversity. River management can restore riverbank vegetation and provide habitats for aquatic organisms and birds.

[0003] Rivers are important carriers of water resources. River management, including measures such as clearing garbage and controlling sewage discharge, helps improve river water quality. High-quality river water can serve as a source of domestic water, industrial water, and agricultural irrigation, ensuring the sustainable use of water resources. River pollution seriously affects the quality of water resources and the balance of the ecological environment, making effective river management a top priority.

[0004] Current river management work covers many aspects, including pollution source control, river dredging, ecological restoration, water purification, etc. During the implementation of these management measures, it is necessary to accurately monitor and analyze the river water quality, bottom sediment, etc. in order to evaluate the management effect and formulate scientific and reasonable management plans.

[0005] Most of the current anti-pollution samplers used in river management are not equipped with effective filtration when sampling water resources, and cannot fully meet the high-precision requirements for water resource sampling in the river management process. When sampling river water resources, various impurities in the river water, such as mud, plant debris, plastic particles, metal debris, etc., can easily enter the sampling container along with the water flow. Summary of the Invention

[0006] In view of the fact that most of the above-mentioned existing equipment are not equipped with effective filtration when performing water resource sampling operations and cannot fully meet the high-precision requirements for water resource sampling in the process of river management, the present invention is proposed.

[0007] Therefore, the purpose of the present invention is to provide an anti-pollution sampler for river channel management of water conservancy projects. Its purpose is: through the water resource filtering operation of river channel sampling, impurities in river water resources can be effectively intercepted, so that the water sample entering the sampling container is purer and closer to the actual water quality situation. It can provide a high-quality sample basis for subsequent water quality testing and analysis, improve the accuracy and reliability of the test results, and help to more accurately understand the pollution status of the river and evaluate the management effect.

[0008] To solve the above technical problems, the present invention provides the following technical solutions: an anti-pollution sampler for river management in water conservancy projects, comprising an operating panel, a long sampling rod fixedly mounted on the bottom of the operating panel, a sampling component disposed at the bottom of the long sampling rod, a filter component disposed on the surface of the sampling component, and a disassembly component disposed between the bottom of the operating panel, the long sampling rod, and the sampling component;

[0009] The sampling component includes multiple groups of sampling cavities below the operating panel, and the filtering component includes an annular filter plate arranged on the surface of the sampling cavity, multiple groups of filter holes opened on the surface of the annular filter plate, four groups of liquid inlets opened on the surface of the sampling cavity, and the liquid inlets and the inner cavity of the sampling cavity are connected to each other, a circular blocking disk slidably connected to the inner cavity of the sampling cavity, and a blocking ring arranged at the top edge of the circular blocking disk, and the blocking ring is used to block the liquid inlet.

[0010] As a preferred solution of the anti-pollution sampler for river management in water conservancy projects of the present invention, handles are fixedly connected to both sides of the top of the operating panel, and the surfaces of the handles are provided with anti-slip grooves.

[0011] As a preferred solution of the anti-pollution sampler for river channel management in water conservancy projects described in the present invention, a pull rod is fixedly installed on the top of the circular blocking disk, and the top end of the pull rod extends to the top of the operating disk through the sampling cavity, and a first spring is arranged on the surface of the pull rod, and the first spring is located in the inner cavity of the sampling cavity.

[0012] As a preferred solution of the anti-pollution sampler for river channel management in water conservancy projects described in the present invention, the bottom end of the sampling rod is slidably connected to an operating rod, and the top end of the operating rod passes through the sampling rod and the operating panel, as well as an operating handle arranged on the top of the operating rod, and the operating handle is located above the operating panel.

[0013] As a preferred solution of the anti-pollution sampler for river channel management of water conservancy projects described in the present invention, a limiting slot is provided at the top end of the pull rod, and the cross-section of the limiting slot is in an inverted T-shape, connecting slots are arranged on both sides of the inner surface of the limiting slot, and a T-shaped limit block is arranged at the bottom of the operating rod, and the T-shaped limit block extends to the inner cavity of the limiting slot.

[0014] As a preferred solution of the anti-pollution sampler for river channel management of water conservancy projects described in the present invention, wherein: the top of the sampling chamber is fixedly connected to a fixed ring seat, four groups of connecting grooves are arranged on the surface of the fixed ring seat, and the connecting grooves and the inner cavity of the fixed ring seat are connected to each other, an annular sleeve seat is arranged on the surface of the pull rod, and the annular sleeve seat is located in the inner cavity of the fixed ring seat at the top of the sampling chamber, four groups of L-shaped connecting rods are arranged on the surface of the annular sleeve seat, and one end of the L-shaped connecting rod extends to the outside of the fixed ring seat through the connecting groove, and the end of the L-shaped connecting rod away from the annular sleeve seat is connected to the top of the annular filter plate.

[0015] As a preferred solution of the anti-pollution sampler for river channel management of water conservancy projects described in the present invention, the disassembly and assembly parts include multiple groups of limiting bases arranged at the bottom edge of the operating panel, annular bottom grooves opened at the bottom edges of the limiting bases and the sampling long rods, three groups of L-shaped blocks arranged at the bottom ends of the limiting bases and the sampling long rod surfaces, and the L-shaped blocks and the inner cavities of the annular bottom grooves are connected to each other, and three groups of limiting blocks are arranged at the top of the inner cavity of the fixed ring seat, and one end of the limiting block extends to the inner cavity of the annular bottom groove through the L-shaped block.

[0016] As a preferred solution of the anti-pollution sampler for river channel management of water conservancy projects described in the present invention, three groups of blocking blocks are arranged on the top of the inner cavity of the annular bottom groove, one end of the blocking block is fixedly connected to an arc-shaped telescopic rod, a connecting push block is arranged at the end of the arc-shaped telescopic rod away from the blocking block, and one end of the connecting push block and the surface of the limit block are in contact with each other, and a second spring is arranged on the surface of the arc-shaped telescopic rod.

[0017] As a preferred solution of the anti-pollution sampler for river channel management of water conservancy projects described in the present invention, the limiting base and the bottom end of the surface of the sampling rod are rotatably connected with an operating ring, three groups of L-shaped connecting plates are arranged at the bottom end of the operating ring, and the end of the L-shaped connecting plate away from the operating ring extends to the inner cavity of the annular bottom groove and the surface of the connecting push block through the L-shaped clamping block to be connected to each other, and a limit opening is opened at one end of the inner cavity of the L-shaped clamping block.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] 1. The present invention can effectively intercept impurities in the water, such as mud, sand, and plant debris, by arranging an annular filter plate on the surface of the liquid inlet, so that the water sample entering the sampling chamber is purer, which can truly reflect the water quality of the water resource and provide high-quality samples for subsequent water quality testing and analysis. At the same time, when the liquid inlet is sampling the water source, the annular filter plate is synchronously blocked, thereby realizing the simultaneous sampling and filtration. There is no need to operate the filtration device additionally, which simplifies the sampling process, improves the sampling efficiency, and saves manpower and time costs.

[0020] 2. The present invention provides multiple groups of limiting bases under the operating panel for installing multiple groups of sampling chambers, which can simultaneously carry out sampling at different positions, shorten the time for monitoring multiple sampling points, improve the sampling efficiency, and obtain more water quality data in a shorter time. At the same time, multiple groups of sampling chambers can collect water samples from different positions respectively, avoiding cross contamination between water samples, so that each water sample can accurately represent the water quality of its corresponding position, which is convenient for separate analysis and comparison of water quality at different positions.

[0021] 3. The present invention limits the quick-release setting between the base and the sampling rod and the sampling cavity, making the replacement of the sampling cavity faster and enabling multiple samplings to be completed in a short time, thereby improving the turnover rate and utilization rate of the sampler and being suitable for use in large-scale river water quality monitoring work. At the same time, the synergistic effect of multiple groups of sampling cavities and the quick-release setting ensures the continuity and accuracy of the sampling process, avoids problems such as sample confusion or sampling position deviation caused by cumbersome sampling operations, and improves the quality and reliability of the sampling work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the anti-pollution sampler for river management in water conservancy projects of the present invention;

[0023] Figure 2 This is a schematic diagram of the bottom-up three-dimensional structure of the anti-pollution sampler for river channel management in water conservancy projects of the present invention;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the anti-pollution sampler for river channel management in water conservancy projects of the present invention;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the sampling chamber of the anti-pollution sampler for river channel management in water conservancy projects of the present invention;

[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of the sampling cavity of the anti-pollution sampler for river channel management in water conservancy projects of the present invention;

[0027] Figure 6 This is a schematic diagram of the expanded three-dimensional structure of the sampling cavity and sampling rod of the anti-pollution sampler for river channel management in water conservancy projects of the present invention;

[0028] Figure 7 This is a schematic diagram of the upward perspective structure of the sampling rod of the anti-pollution sampler for river channel management in water conservancy projects of the present invention;

[0029] Figure 8 This is a top-view, sectional, three-dimensional structural diagram of the fixed ring seat of the anti-pollution sampler for river channel management in water conservancy projects according to the present invention;

[0030] Figure 9This is a partial cross-sectional three-dimensional structural schematic diagram of the pull rod of the anti-pollution sampler for river channel management in water conservancy projects of the present invention.

[0031] Description of reference numerals:

[0032] 1. Operation panel; 11. Sampling rod; 12. Handle; 2. Sampling component; 21. Sampling chamber; 22. Liquid inlet; 23. Circular blocking plate; 24. Blocking ring; 25. Pull rod; 26. First spring; 27. Operation lever; 28. T-shaped limit block; 29. Limiting slot; 20. Fixed ring seat; 201. Connecting slot; 202. Operation handle; 3. Filter component; 31. Annular sleeve; 32. Connecting slot; 33. L-shaped connecting rod; 34. Annular filter plate; 35. Filter hole; 4. Disassembly and assembly components; 41. Limiting base; 42. Annular bottom groove; 43. Blocking block; 44. Arc telescopic rod; 45. Second spring; 46. Connecting push block; 47. L-shaped connecting plate; 48. Operation collar; 49. Limiting block; 40. L-shaped block; 401. Limiting port. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0034] Example 1

[0035] Reference Figures 1-9 , which is a first embodiment of the present invention, provides an anti-pollution sampler for water conservancy project river channel management. The anti-pollution sampler for water conservancy project river channel management includes an operating panel 1, a sampling rod 11 fixedly mounted on the bottom of the operating panel 1, a sampling component 2 disposed at the bottom of the sampling rod 11, a filter component 3 disposed on the surface of the sampling component 2, and a disassembly component 4 disposed between the bottom of the operating panel 1 and the sampling rod 11 and the sampling component 2. The sampling rod 11 is used to extend a sampling cavity 21 into the water flow of the river.

[0036] The sampling component 2 includes multiple groups of sampling chambers 21 below the operating panel 1, and the filtering component 3 includes an annular filter plate 34 arranged on the surface of the sampling chamber 21, multiple groups of filter holes 35 opened on the surface of the annular filter plate 34, and four groups of liquid inlets 22 opened on the surface of the sampling chamber 21. The liquid inlet 22 and the inner cavity of the sampling chamber 21 are connected to each other, and a circular blocking disk 23 is slidably connected to the inner cavity of the sampling chamber 21. A blocking ring 24 is arranged at the top edge of the circular blocking disk 23, and the blocking ring 24 is used to block the liquid inlet 22. The setting of the liquid inlet 22 facilitates the entry of water into the inner cavity of the sampling chamber 21.

[0037] Handles 12 are fixedly connected to both sides of the top of the operating panel 1 , and the surfaces of the handles 12 are covered with anti-slip grooves, making it easy to hold the handles 12 and pick up the entire operating panel 1 .

[0038] A pull rod 25 is fixedly installed on the top of the circular blocking disk 23, and the top end of the pull rod 25 extends to the top of the operating disk 1 through the sampling cavity 21. A first spring 26 is arranged on the surface of the pull rod 25, and the first spring 26 is located in the inner cavity of the sampling cavity 21.

[0039] The bottom end of the sampling rod 11 is slidably connected to an operating rod 27, and the top end of the operating rod 27 passes through the sampling rod 11 and the operating disk 1, as well as an operating handle 202 arranged on the top of the operating rod 27. The operating handle 202 is located above the operating disk 1, which is convenient for synchronously pulling the sampling cavity 21 below the sampling rod 11 to perform sampling operations.

[0040] A limiting slot 29 is provided at the top of the pull rod 25, and the cross-section of the limiting slot 29 is in an inverted T-shape. Connecting slots 201 are arranged on both sides of the inner surface of the limiting slot 29, and a T-shaped limit block 28 is arranged at the bottom of the operating rod 27. The T-shaped limit block 28 extends to the inner cavity of the limiting slot 29, which facilitates the connection between the operating rod 27 on the sampling long rod 11 and the pull rod 25 on the sampling cavity 21, thereby facilitating the sampling operation.

[0041] The top of the sampling chamber 21 is fixedly connected to a fixed ring seat 20, four groups of communicating grooves 32 are arranged on the surface of the fixed ring seat 20, and the communicating grooves 32 and the inner cavity of the fixed ring seat 20 are connected to each other, an annular sleeve seat 31 is arranged on the surface of the pull rod 25, and the annular sleeve seat 31 is located in the inner cavity of the fixed ring seat 20 at the top of the sampling chamber 21, four groups of L-shaped connecting rods 33 are arranged on the surface of the annular sleeve seat 31, and one end of the L-shaped connecting rod 33 extends to the outside of the fixed ring seat 20 through the communicating groove 32, and the end of the L-shaped connecting rod 33 away from the annular sleeve seat 31 is connected to the top of the annular filter plate 34. The setting of the annular filter plate 34 facilitates the filtering operation of the water source entering the inner cavity of the sampling chamber 21 from the liquid inlet 22.

[0042] During use, first, the grip 12 can be held and the sampling cavity 21 at the bottom end of the sampling rod 11 can be extended into the river water source. Then, the operating handle 202 on the top of the operating disk 1 can be pulled to drive the operating rod 27 to move upward, and then the T-shaped limit block 28 hooks the pull rod 25 to move upward, at this time driving the circular blocking disk 23 to move upward, so that the blocking ring 24 on the circular blocking disk 23 moves to cancel the blocking of the liquid inlet 22, and at the same time, the circular blocking disk 23 moves upward and also causes the first spring 26 to be compressed. At the same time, the pull rod 25 moves upward to cause the annular sleeve 31 to move upward, and then the L-shaped connecting rod 33 drags the annular filter plate 34 to rise, so that the annular filter plate 34 moves up on the surface of the annular sleeve 31, and then blocks the liquid inlet 22. Subsequently, the river water first passes through the filter holes 35 on the annular filter plate 34 and then enters the inner cavity of the sampling cavity 21 from the liquid inlet 22 for sampling and storage.

[0043] When the sampling is completed, by loosening the operating handle 202, the rebound force of the first spring 26 drives the circular blocking disk 23 to move down and reset, thereby causing the blocking ring 24 to block the liquid inlet 22 again. Then the downward movement of the pull rod 25 also causes the annular sleeve 31 to move down, thereby driving the annular filter plate 34 on the L-shaped connecting rod 33 to reset, thereby canceling the blocking of the liquid inlet 22.

[0044] Example 2

[0045] Reference Figures 1-9 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the disassembly and assembly component 4 includes multiple groups of limiting bases 41 arranged at the bottom edge of the operating panel 1, an annular bottom groove 42 is opened at the bottom edge of the limiting base 41 and the sampling rod 11, three groups of L-shaped clamping blocks 40 are arranged at the bottom end of the limiting base 41 and the sampling rod 11, and the inner cavities of the L-shaped clamping blocks 40 and the annular bottom groove 42 are connected to each other, and three groups of limiting clamping blocks 49 are arranged at the top of the inner cavity of the fixed ring seat 20, and one end of the limiting clamping block 49 extends to the inner cavity of the annular bottom groove 42 through the L-shaped clamping block 40. The limiting clamping block 49 is clamped and fixed in the inner cavity of the L-shaped clamping block 40, so that the fixed ring seat 20 is conveniently fixed under the sampling rod 11 or the limiting base 41.

[0046] Three groups of blocking blocks 43 are provided at the top of the inner cavity of the annular bottom groove 42, one end of the blocking block 43 is fixedly connected to an arc-shaped telescopic rod 44, a connecting push block 46 is provided at the end of the arc-shaped telescopic rod 44 away from the blocking block 43, and one end of the connecting push block 46 is in contact with the surface of the limit block 49, and a second spring 45 is provided on the surface of the arc-shaped telescopic rod 44.

[0047] The bottom end of the surface of the limiting base 41 and the sampling rod 11 is rotatably connected with an operating ring 48, and three groups of L-shaped connecting plates 47 are arranged at the bottom end of the operating ring 48. The end of the L-shaped connecting plate 47 away from the operating ring 48 extends through the L-shaped block 40 to the inner cavity of the annular bottom groove 42 and is connected to the surface of the connecting push block 46. There is also a limit opening 401 at one end of the inner cavity of the L-shaped block 40. The arrangement of the three groups of L-shaped connecting plates 47 on the operating ring 48 facilitates the simultaneous compression and movement operation of the three groups of arc-shaped telescopic rods 44.

[0048] During use, when the sampling cavity 21 at the bottom of the sampling rod 11 is sampled, if it is necessary to sample the water source of the river at the next location, the sampling cavity 21 on the sampling rod 11 can be rotated first, and then the fixed ring seat 20 is driven to rotate, and then the three groups of limit blocks 49 on the fixed ring seat 20 are moved in the inner cavity of the L-shaped block 40 on the sampling rod 11. At the same time, when the sampling cavity 21 drives the fixed ring seat 20 to rotate, the limit slot 29 on the pull rod 25 can be moved to the T-shaped limit block on the operating rod 27. 28 is rotated, and at the same time, the connecting notches 201 on both sides of the limiting slot 29 and the two ends of the T-shaped limit block 28 are aligned with each other. When the limit block 49 moves to the side of the inner cavity of the L-shaped block 40 close to the limit opening 401, the sampling chamber 21 can be moved downward, and the sampling chamber 21 can be removed from the bottom end of the sampling long rod 11. At the same time, the T-shaped limit block 28 is removed from the limiting slot 29 on the pull rod 25. Then, the sampling chamber 21 without the sample water source on the set of limiting bases 41 can be removed by referring to the above steps.

[0049] Then place the sampling chamber 21 without the sampled water source under the sampling rod 11 and align the three groups of limit blocks 49 on the fixed ring seat 20 with the L-shaped block 40, then rotate the operating ring 48 on the surface of the sampling rod 11 to move the L-shaped connecting plate 47 and drive the connecting push block 46 to move, and then move the L-shaped connecting plate 47 from the L-shaped block 40 to the limit opening 401, and at the same time compress the arc-shaped telescopic rod 44 and the second spring 45, and then move the sampling chamber 21 upward, so that the three groups of limit blocks 49 on the fixed ring seat 20 move Move to the inner cavity of the L-shaped block 40, then loosen the operating ring 48, use the rebound force of the second spring 45 to drive the arc-shaped telescopic rod 44 to expand and push the connecting push block 46 to move in the annular bottom groove 42, and then push the three groups of limit blocks 49 entering the annular bottom groove 42 to one side of the L-shaped block 40, and then fix the sampling cavity 21 under the sampling long rod 11, which is convenient for the subsequent sampling operation. At the same time, the sampling cavity 21 that samples the water source can be installed on a group of limit bases 41 according to the above steps for temporary storage operation.

[0050] The remaining structures are the same as those of Example 1.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An anti-pollution sampler for river management in water conservancy projects, comprising an operating panel (1), characterized in that: It also includes a sampling rod (11) fixedly mounted on the bottom of the operating panel (1), a sampling component (2) arranged at the bottom of the sampling rod (11), a filtering component (3) arranged on the surface of the sampling component (2), and a disassembly component (4) arranged between the bottom of the operating panel (1), the sampling rod (11) and the sampling component (2); The sampling component (2) includes multiple groups of sampling cavities (21) below the operating panel (1); the filtering component (3) includes an annular filter plate (34) arranged on the surface of the sampling cavity (21); multiple groups of filter holes (35) opened on the surface of the annular filter plate (34); four groups of liquid inlets (22) opened on the surface of the sampling cavity (21); the liquid inlets (22) and the inner cavity of the sampling cavity (21) are interconnected; a circular blocking disk (23) is slidably connected to the inner cavity of the sampling cavity (21); and a blocking ring (24) is arranged at the top edge of the circular blocking disk (23); and the blocking ring (24) is used to block the liquid inlet (22).

2. The anti-pollution sampler for water conservancy project river management according to claim 1, characterized in that: Handles (12) are fixedly connected to both sides of the top of the operating panel (1), and the surfaces of the handles (12) are provided with anti-slip grooves.

3. The anti-pollution sampler for water conservancy project river management according to claim 1, characterized in that: A pull rod (25) is fixedly mounted on the top of the circular blocking disk (23), and the top end of the pull rod (25) extends to the top of the operating disk (1) through the sampling cavity (21). A first spring (26) is arranged on the surface of the pull rod (25), and the first spring (26) is located in the inner cavity of the sampling cavity (21).

4. The anti-pollution sampler for water conservancy project river management according to claim 3, characterized in that: The bottom end of the sampling rod (11) is slidably connected to an operating rod (27), and the top end of the operating rod (27) passes through the sampling rod (11) and the operating panel (1), and an operating handle (202) is provided on the top of the operating rod (27), and the operating handle (202) is located above the operating panel (1).

5. The anti-pollution sampler for water conservancy project river management according to claim 4, characterized in that: A limiting slot (29) is provided at the top end of the pull rod (25), and the cross section of the limiting slot (29) is in an inverted T-shape, with connecting slots (201) arranged on both sides of the inner surface of the limiting slot (29), and a T-shaped limit block (28) arranged at the bottom of the operating rod (27), and the T-shaped limit block (28) extends to the inner cavity of the limiting slot (29).

6. The anti-pollution sampler for water conservancy project river management according to claim 5, characterized in that: The top of the sampling cavity (21) is fixedly connected to a fixed ring seat (20), four groups of connecting grooves (32) are arranged on the surface of the fixed ring seat (20), and the connecting grooves (32) and the inner cavity of the fixed ring seat (20) are connected to each other, an annular sleeve (31) is arranged on the surface of the pull rod (25), and the annular sleeve (31) is located in the inner cavity of the fixed ring seat (20) at the top of the sampling cavity (21), four groups of L-shaped connecting rods (33) are arranged on the surface of the annular sleeve (31), and one end of the L-shaped connecting rod (33) extends to the outside of the fixed ring seat (20) through the connecting groove (32), and the end of the L-shaped connecting rod (33) away from the annular sleeve (31) is connected to the top of the annular filter plate (34).

7. The anti-pollution sampler for water conservancy project river management according to claim 6, characterized in that: The disassembly and assembly component (4) comprises a plurality of groups of limiting bases (41) arranged at the bottom edge of the operating panel (1), an annular bottom groove (42) formed at the bottom edge of the limiting base (41) and the sampling rod (11), three groups of L-shaped clamping blocks (40) arranged at the bottom ends of the surfaces of the limiting base (41) and the sampling rod (11), wherein the inner cavities of the L-shaped clamping blocks (40) and the annular bottom groove (42) are communicated with each other, and three groups of limiting clamping blocks (49) arranged at the top of the inner cavity of the fixed ring seat (20), wherein one end of the limiting clamping block (49) extends through the L-shaped clamping block (40) to the inner cavity of the annular bottom groove (42).

8. The anti-pollution sampler for water conservancy project river management according to claim 7, characterized in that: Three groups of blocking blocks (43) are provided at the top of the inner cavity of the annular bottom groove (42), one end of the blocking block (43) is fixedly connected to an arc-shaped telescopic rod (44), a connecting push block (46) is provided at one end of the arc-shaped telescopic rod (44) away from the blocking block (43), and one end of the connecting push block (46) and the surface of the limiting block (49) are in contact with each other, and a second spring (45) is provided on the surface of the arc-shaped telescopic rod (44).

9. The anti-pollution sampler for water conservancy project river management according to claim 8, characterized in that: The limiting base (41) and the bottom end of the surface of the sampling rod (11) are rotatably connected to an operating ring (48), and three groups of L-shaped connecting plates (47) are arranged at the bottom end of the operating ring (48), and one end of the L-shaped connecting plate (47) away from the operating ring (48) extends to the inner cavity of the annular bottom groove (42) and the surface of the connecting push block (46) through the L-shaped clamping block (40) to be connected to each other, and a limiting opening (401) is opened at one end of the inner cavity of the L-shaped clamping block (40).

Images