Surface water quality sampling and detecting device

Abstract

The invention discloses a surface water quality sampling and detecting device which comprises a positioning ring, a sampling area is arranged in the middle of the positioning ring, a plurality of external expansion claws are connected in the sampling area, a shifting part is arranged on a reset elastic structure, a sampling assembly is arranged above the sampling area, and the sampling assembly is in sliding connection with the positioning ring. And the sampling assembly slides axially to trigger the shifting piece to drive the external expansion claw to rotate. The external expansion claw is arranged on the positioning ring, and the shifting piece is triggered to move downwards by mechanical driving when the sampler slides downwards, so that the external expansion claw is driven to rotate and expand outwards, stones in a pit are pushed aside automatically, and a barrier-free water taking area is formed in the middle; and the problem that the water intake is blocked due to stone accumulation in the traditional sampling process is effectively solved.

Description

Technical Field

[0001] This invention relates to the field of water quality sampling technology, and specifically to a surface water quality sampling and testing device. Background Technology

[0002] Surface water quality sampling and testing is a crucial part of environmental monitoring, and the reliability and convenience of the sampling equipment directly affect sampling efficiency and the accuracy of test results. Currently, commonly used surface water sampling devices mainly include sampling bottles, samplers, and suction devices with inlets. These devices work effectively in open water or relatively flat water bodies, but when sampling in complex terrain (such as surface depressions or shallows with obstacles like gravel and rocks), they often face the problem of inlet blockage.

[0003] In actual sampling processes, surface depressions or shallow water areas often accumulate gravel, rocks, or other debris due to water erosion or geological reasons. When the water intake of the sampling device approaches or comes into contact with these areas, gravel and rocks easily accumulate around the intake, even blocking the water inlet channel, leading to a decrease in water sampling rate or even preventing normal water sampling. To solve this problem, existing technologies typically employ manual intervention, such as using tools or bare hands to scoop or remove rocks before sampling to clear obstacles near the intake. However, this method is inconvenient in practice, especially in field environments or during continuous sampling, easily increasing the workload. Furthermore, for scenarios with frequent sampling, repeatedly clearing rocks significantly reduces overall sampling efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a surface water quality sampling and testing device to solve the technical problems of inconvenience and low efficiency caused by manual cleaning of gravel in pits in the prior art.

[0005] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0006] A surface water quality sampling and testing device includes a positioning ring, a sampling area in the middle of the positioning ring, and multiple outwardly expanding claws connected in the sampling area through a reset elastic structure. The outwardly expanding claws are arranged circumferentially at the bottom of the positioning ring with their bottom ends tilted toward the center of the positioning ring. A toggle member is provided on the reset elastic structure, which can drive the bottom ends of the outwardly expanding claws to rotate in directions close to and away from the central axis of the positioning ring.

[0007] A sampling component is provided above the sampling area. The sampling component is slidably connected to the positioning ring. The sampling component slides axially to trigger the actuating element to drive the outward expansion claw to rotate.

[0008] As a preferred embodiment of the present invention, the reset elastic structure includes an annular ring, which is coaxially fixedly disposed in the middle of the positioning ring, the sampling area is disposed at the center of the annular ring, and a plurality of ring sleeves are arranged in a circumferential array on the annular ring. The ring sleeves are axially rotatably sleeved on the annular ring, the actuating member is fixedly connected to the ring sleeves, and the actuating member extends toward the middle of the sampling area. The outwardly expanding claw is fixedly connected to the ring sleeves.

[0009] The positioning ring is provided with a positioning plate, and the positioning plate is provided with a return spring, which is connected to the outward expansion claw.

[0010] As a preferred embodiment of the present invention, the outer expansion claw has an arc-shaped notch on the side away from the central axis of the positioning ring.

[0011] In a preferred embodiment of the present invention, the sampling assembly includes a filter sleeve, which is slidably connected to the positioning ring via a sliding structure. The filter sleeve slides along the axial direction of the positioning ring. A sampler is disposed inside the filter sleeve, and a filter hole is disposed at the bottom of the filter sleeve. The filter sleeve is slidably disposed directly above the actuating member, and the filter sleeve drives the outward expansion claw to rotate by vertically sliding against the actuating member.

[0012] As a preferred embodiment of the present invention, the sampler includes an outer sleeve, a suction nozzle is provided at the bottom of the outer sleeve, an opening is provided at the top, a sealing rubber ring is slidably provided inside the outer sleeve, a pull rod is fixedly provided on the sealing rubber ring, and a grip piece is connected to the other end of the pull rod extending toward the opening.

[0013] In a preferred embodiment of the present invention, a first groove is provided on the outer wall of the outer sleeve, the bottom end of the first groove extends downward and penetrates the outer wall of the sampler, a first slider is provided in the first groove, the first slider is fixedly connected to the filter sleeve, and the sampler is slidably disposed in the filter sleeve along the axial direction of the filter sleeve.

[0014] In a preferred embodiment of the present invention, extension plates are fixedly provided on both sides of the positioning ring, and a second sliding groove is provided on the extension plate. The second sliding groove is connected to a synchronization plate through a second slider. The synchronization plate is fixedly connected to the filter sleeve, and the synchronization plate drives the filter sleeve to move axially.

[0015] As a preferred embodiment of the present invention, a magnetic suction member is provided at the top of the second slide groove, and the magnetic suction member is connected to the synchronization plate to fix the synchronization plate at the top position of the second slide groove.

[0016] In a preferred embodiment of the present invention, a linkage plate is movably disposed on the synchronization plate, and a square hole for avoiding the extension plate is provided in the middle of the linkage plate, and the linkage plate is fixedly connected to the outer sleeve.

[0017] As a preferred embodiment of the present invention, the linkage plate is provided with a buckle.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] This invention, by setting an outward-expanding claw on the positioning ring, utilizes the mechanical drive of the sampler as it slides down to trigger a toggle to move downwards, thereby causing the outward-expanding claw to rotate and open outwards. This automatically removes the stones in the pit and forms an unobstructed water intake area in the center, effectively solving the problem of water intake blockage caused by stone accumulation in traditional sampling processes. Moreover, it can quickly clean the sampling area without manual intervention, avoiding the inconvenience and risk of injury caused by manual cleaning. The operation is more convenient and efficient, significantly improving sampling efficiency. Attached Figure Description

[0020] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0023] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle.

[0024] The labels in the diagram represent the following:

[0025] 1. Positioning ring; 2. Sampling area; 3. Outer expansion claw; 4. Actuating component; 5. Sampling assembly; 6. Annular ring; 7. Ring sleeve; 8. Positioning plate; 9. Return spring; 10. Arc-shaped notch; 11. Filter sleeve; 12. Sampler; 13. Outer sleeve; 14. Nozzle; 15. Sealing rubber ring; 16. Pull rod; 17. Grip plate; 18. First slide groove; 19. First slider; 20. Buckle ring; 21. Extension plate; 22. Second slide groove; 23. Sliding structure; 24. Synchronization plate; 25. Linkage plate; 26. Square hole. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1 to 3 As shown, this invention provides a surface water quality sampling and testing device, including a positioning ring 1. The positioning ring 1 is a circular structure made of stainless steel or high-strength engineering plastic, possessing good corrosion resistance and mechanical strength. A sampling area 2 is provided in the middle of the positioning ring 1, extending through the upper and lower surfaces of the positioning ring 1. The positioning ring 1 is placed around the sampling pit, aligning the sampling area 2 with the water pit. Multiple outwardly expanding claws 3 are connected within the sampling area 2 via a reset elastic structure. The outwardly expanding claws 3 are long, rigid components with their bottom ends inclined towards the central axis of the positioning ring 1, and are uniformly distributed along the bottom circumference of the positioning ring 1 in a conical shape. A toggle member 4 is fixedly mounted on the reset elastic structure. The toggle member 4 is a metal rod extending towards the axis of the positioning ring 1, capable of rotating the bottom ends of the outwardly expanding claws 3 in directions close to or away from the central axis of the positioning ring 1. A sampling component 5 is provided above the sampling area 2. The sampling component 5 is connected to the positioning ring 1 through a sliding fit. By sliding vertically along the axis of the positioning ring 1, the downward pressing actuating part 4 rotates, thereby driving the outward expanding claw 3 to rotate, thereby clearing away the gravel or debris below the sampling area 2.

[0028] Specifically, such as Figure 3 As shown, the reset elastic structure includes an annular ring 6, which is a stainless steel ring and is coaxially fixed to the inner wall of the positioning ring 1 via a connecting block. The sampling area 2 is located at the center of the annular ring 6. Multiple sleeves 7 are evenly distributed along the circumference of the annular ring 6, each sleeve being a cylindrical sleeve. One end of the actuating element 4 is welded and fixed to the outer wall of the sleeve 7, and the other end extends towards the center of the sampling area 2, with its length parallel to the radial direction of the positioning ring 1. The upper end of the outward-expanding claw 3 is fixed to the bottom of the sleeve 7 and rotates synchronously with the sleeve 7. Therefore, when the sampling component 5 moves downward within the sampling area 2, the sampling component 5 contacts the actuating element 4 and pushes the actuating element 4 to rotate the sleeve 7, thereby rotating the outward-expanding claw 3. This allows the sampling component 5 to fall and collect samples while simultaneously using the outward-expanding claw 3 to remove gravel from the water pit, achieving an automatic and efficient sampling process.

[0029] A positioning plate 8 is fixedly installed at the bottom of the positioning ring 1, below the annular ring 6. The positioning plate 8 corresponds to the position of the outward expanding claw 3 and is arranged in a circular array on the positioning ring 1. A return spring 9 is fixedly installed on each positioning plate 8. The return spring 9 is a tension spring, with one end fixed to the positioning plate 8 and the other end connected to the outer side of the outward expanding claw 3. It provides the outward expanding claw 3 with a return force toward the central axis of the positioning ring 1. When the sampling component 5 moves down and triggers the toggle 4 to move, the toggle 4 drives the outward expanding claw to rotate. The outward expanding claw 3 compresses the return spring 9 and rotates outward to push the stone away. After the sampling component 5 completes sampling and rises, the outward expanding claw 3 returns to its original position close to the axis of the positioning ring 1 under the action of the return spring 9.

[0030] Each of the outward-expanding claws 3 has an arc-shaped notch 10 on the side away from the central axis of the positioning ring 1, and the arc-shaped notch 10 is located at the bottom of the outward-expanding claw 3. The design of the arc-shaped notch 10 makes it easier for the outward-expanding claw 3 to more effectively pry away gravel, stones or other debris when rotating, reducing resistance and preventing debris from accumulating.

[0031] like Figure 1 and Figure 2 As shown, the sampling assembly 5 includes a filter sleeve 11, which is made of corrosion-resistant plastic. The outer wall of the filter sleeve 11 is slidably connected to the inner wall of the sampling area 2 of the positioning ring 1 via a sliding structure, as shown in the diagram. Figure 1 The diagram shows a sliding block structure that can slide up and down along the axis of the positioning ring 1. Figure 2 As shown, the outer wall of the filter sleeve 11 is provided with a groove, and a sliding block is provided inside the positioning ring 1. The sliding connection is achieved by the engagement of the sliding block with the groove. The bottom of the filter sleeve 11 is provided with multiple filter holes distributed in a grid pattern for filtering large particulate impurities in the water sample. A sampler 12 is provided inside the filter sleeve 11. The bottom outer edge of the filter sleeve 11 is located directly above the actuating member 4. When it slides downward, it presses against the actuating member 4, causing the ring sleeve 7 and the outward expanding claw 3 to rotate, thereby realizing the impurity cleaning function.

[0032] The sampler 12 includes an outer sleeve 13, which is a cylindrical container made of transparent polycarbonate material for easy observation of the water sample. A suction nozzle 14 is located at the bottom of the outer sleeve 13; the nozzle 14 has a circular hole and an open top. A sealing rubber ring 15 is slidably disposed inside the outer sleeve 13, its outer diameter tightly fitting against the inner wall of the outer sleeve 13 to form a seal. A pull rod 16 is fixedly connected to the center of the sealing rubber ring 15. The other end of the pull rod 16 extends upward through the opening of the outer sleeve 13 and is connected to a circular grip 17. The grip 17 facilitates hand operation. When the pull rod 16 is pulled upward, the sampler 12 draws the water sample from the filter sleeve 11 into the outer sleeve 13 through negative pressure, thus completing the sampling.

[0033] Furthermore, a first groove 18 is axially formed on the outer wall of the outer sleeve 13. The first groove 18 is a rectangular groove, extending downwards from its bottom end and penetrating the bottom of the outer sleeve 13, while its top does not penetrate the outer sleeve 13 and serves as a limiting point. A first slider 19 is disposed within the first groove 18. The first slider 19 is a rectangular block and is fixed to the inner wall of the filter sleeve 11 by bolts. The sampler 12 is slidably disposed within the filter sleeve 11 along the axial direction of the filter sleeve 11 through the cooperation of the first groove 18 and the first slider 19, thereby realizing the detachable installation of the sampler 12. In practical use, when the filter sleeve 11 slides down along the axial direction of the positioning ring 1, the outer sleeve 13 will slide down synchronously with the filter sleeve 11 due to gravity, keeping it always inside the filter sleeve 11. After the outer sleeve 13 has finished sampling, the outer sleeve 13 is pulled up, causing the first slider 19 to slide down and out of the first groove 18, thereby disengaging the first slider 19 from the first groove 18, forming a detachable sampler 12.

[0034] Furthermore, such as Figure 1 As shown, extension plates 21 are symmetrically fixed on both sides of the positioning ring 1, with each extension plate 21 extending upward on both sides of the positioning ring 1. A second sliding groove 22 is formed along the axial direction on each extension plate 21, and the second sliding groove 22 is [length missing]. A second slider is disposed within the second sliding groove 22 and is fixed to the synchronization plate 24 by bolts. The synchronization plate 24 is through-hole in the middle, connected to the two extension plates 21 on its inner side, and its center is fixedly connected to the outer wall of the filter sleeve 11 by bolts or integral molding. Through the cooperation of the second sliding groove 22 and the second slider, the synchronization plate 24 drives the filter sleeve 11 to move along the axial direction of the positioning ring 1, making the upward and downward movement of the filter sleeve 11 fast and efficient.

[0035] In addition, a magnetic chuck is fixedly installed at the top of the second slide 22. The magnetic chuck is a permanent magnet embedded in the inner top wall of the second slide 22. The synchronization plate 24 is made of metal or has magnetic material embedded in its top. It is attracted and cooperates with the magnetic chuck to fix the synchronization plate 24 at the top position of the second slide 22, ensuring the stability of the device in the non-sampling state.

[0036] Furthermore, such as Figure 1 As shown, a linkage plate 25 is movably mounted above the synchronization plate 24. The linkage plate 25 is a rectangular plate that movably overlaps the synchronization plate 24. A square hole 26 is provided in the middle of the linkage plate 25 to avoid the extension plate 21, ensuring that the linkage plate 25 does not interfere with the extension plate 21 when sliding. The two ends of the linkage plate 25 are fixedly connected to the top of the outer sleeve 13 by bolts or integral molding to fix the outer sleeve 13, and the sampling is performed by the sliding of the sealing rubber ring 15 driven by the pull rod 16.

[0037] A buckle 20 is provided on one side of the linkage plate 25. The buckle 20 is a circular metal ring that is fixed to the linkage plate 25 by riveting, so that the user can operate by hand to pull the linkage plate 25 to remove the entire sampler 12.

[0038] In actual use, the entire device is in its initial state, with the synchronization plate 24, linkage plate 25, filter sleeve 11, and sampler 12 all positioned above the outer expansion claw 3. When needed, the positioning ring 1 is aligned with the recess and lowered, allowing the outer expansion claw 3 to insert into the water pit. Then, the synchronization plate 24 slides down, causing the filter sleeve 11, sampler 12, and linkage plate 25 to fall together. When the filter sleeve 11 presses against the actuating element 4, causing the ring 7 to rotate, the outer expansion claw 3 flips outward, pushing aside the stones and forming a sampling pit in the center of the recess. At this point, the filter sleeve 11 falls into the sampling pit, and the suction nozzle 14 of the sampler 12 is below the liquid surface. Then, the linkage block is stepped on, preventing the outer sleeve 13 from moving. Simultaneously, the pull rod 16 is pulled upward to extract the water sample into the outer sleeve 13, completing the sampling. Finally, the buckle 20 is pulled, causing the linkage plate 25 to slide the entire sampler 12 out for disassembly and transfer of the water sample, completing the entire sampling operation.

[0039] In practice, the number of outward-expanding claws 3 can be increased or decreased according to the actual size of the sampling area to accommodate the range of debris removal.

[0040] The filter sleeve 11 has a removable filter screen for easy cleaning.

[0041] A scale mark is added to the lever 16 for precise control of the water sample volume.

[0042] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A surface water quality sampling and testing device, characterized in that, The system includes a positioning ring (1), a sampling area (2) is provided in the middle of the positioning ring (1), and multiple outward expansion claws (3) are connected in the sampling area (2) through a reset elastic structure. The outward expansion claws (3) are arranged in a circular manner with their bottom ends tilted toward the center of the positioning ring (1) at the bottom of the positioning ring (1). A toggle member (4) is provided on the reset elastic structure. The toggle member (4) can drive the bottom end of the outward expansion claws (3) to rotate in the direction of approaching and moving away from the central axis of the positioning ring (1). A sampling component (5) is provided above the sampling area (2). The sampling component (5) is slidably connected to the positioning ring (1). The sampling component (5) slides axially to trigger the actuating member (4) to drive the outer expansion claw (3) to rotate.

2. The surface water quality sampling and testing device according to claim 1, characterized in that, The reset elastic structure includes an annular ring (6), which is coaxially fixed in the middle of the positioning ring (1). The sampling area (2) is located at the center of the annular ring (6). Multiple ring sleeves (7) are arranged in a circular array on the annular ring (6). The ring sleeves (7) are axially rotated and fitted on the annular ring (6). The actuating member (4) is fixedly connected to the ring sleeves (7) and extends toward the middle of the sampling area (2). The outwardly expanding claw (3) is fixedly connected to the ring sleeves (7). The positioning ring (1) is provided with a positioning plate (8), and the positioning plate (8) is provided with a reset spring (9), which is connected to the outer expansion claw (3).

3. The surface water quality sampling and testing device according to claim 2, characterized in that, The outer expansion claw (3) has an arc-shaped notch (10) on the side away from the central axis of the positioning ring (1).

4. The surface water quality sampling and testing device according to claim 3, characterized in that, The sampling assembly (5) includes a filter sleeve (11), which is slidably connected to the positioning ring (1) via a sliding structure (23). The filter sleeve (11) slides along the axial direction of the positioning ring (1). A sampler (12) is provided inside the filter sleeve (11). A filter hole is provided at the bottom of the filter sleeve (11). The filter sleeve (11) is slidably positioned directly above the actuating member (4). The filter sleeve (11) pushes against the actuating member (4) vertically to drive the outer expansion claw (3) to rotate.

5. The surface water quality sampling and testing device according to claim 4, characterized in that, The sampler (12) includes an outer sleeve (13), a suction nozzle (14) is provided at the bottom of the outer sleeve (13), an opening is provided at the top, a sealing rubber ring (15) is slidably provided inside the outer sleeve (13), a pull rod (16) is fixedly provided on the sealing rubber ring (15), and a grip piece (17) is connected to the other end of the pull rod (16) extending toward the opening.

6. The surface water quality sampling and testing device according to claim 5, characterized in that, The outer wall of the outer sleeve (13) is provided with a first groove (18), the bottom end of the first groove (18) extends downward and penetrates the outer wall of the sampler (12), a first slider (19) is provided in the first groove (18), the first slider (19) is fixedly connected to the filter sleeve (11), and the sampler (12) is slidably disposed in the filter sleeve (11) along the axial direction of the filter sleeve (11).

7. The surface water quality sampling and testing device according to claim 6, characterized in that, An extension plate (21) is fixedly provided on both sides of the positioning ring (1). A second slide groove (22) is provided on the extension plate (21). The second slide groove (22) is connected to a synchronization plate (24) through a second slider. The synchronization plate (24) is fixedly connected to the filter sleeve (11). The synchronization plate (24) drives the filter sleeve (11) to move axially.

8. The surface water quality sampling and testing device according to claim 7, characterized in that, The top of the second slide (22) is provided with a magnetic suction member, which is connected to the synchronization plate (24) to fix the synchronization plate (24) at the top position of the second slide (22).

9. The surface water quality sampling and testing device according to claim 8, characterized in that, A linkage plate (25) is movably disposed on the synchronization plate (24). A square hole (26) for avoiding the extension plate (21) is opened in the middle of the linkage plate (25). The linkage plate (25) is fixedly connected to the outer sleeve (13).

10. The surface water quality sampling and testing device according to claim 9, characterized in that, The linkage plate (25) is provided with a buckle (20).

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