A silt sampling device

Abstract

The utility model provides a kind of sludge sampling device, belong to sludge sampling technical field;Including the thread connection between several cannula, sampling tube is slidably connected in cannula inner wall, the top of sampling tube is threadedly connected with sealing plate, the top of sealing plate is threadedly connected with round pipe, further include: separating mechanism, the separating mechanism includes the separating plate slidably connected in sampling tube inner wall, ring hole is set on the surface of separating plate, round bar is fixed in ring hole inner wall.The utility model through setting separating plate, ring hole, limit tube and through-hole, in the process of sampling, sewage first flows into sampling tube from ring hole, subsequently from the through-hole of limit tube surface flows into cannula interior and discharges, when sludge and separating plate contact, since ring hole width is smaller, sludge is difficult to enter ring hole, to realize sludge-water separation, subsequently sludge will push separating plate to move upwards, until sludge sampling is completed, after sampling is completed, sewage and sludge are separated, to guarantee the integrity of sludge sample.

Description

Technical Field

[0001] This utility model relates to the field of silt sampling technology, and in particular to a silt sampling device. Background Technology

[0002] Silt sampling is the process of collecting a certain amount of silt samples from sediments at the bottom of a water body. The purpose is to provide samples for analyzing the physical properties, chemical composition, and biological composition of the silt, for use in environmental monitoring, pollution source tracing, ecological assessment, and other related research or applications. During sampling, several tubes are first inserted into the silt and fixed in place. Then, a sealing plate is threaded onto the top of the sampling tube, followed by a round tube threaded onto the top of the sealing plate. The sampling tube is then inserted into the tube containing the silt sample. Finally, the sampling tube is pulled out of the tube, and the silt inside the sampling tube is removed.

[0003] When the sampling tube is inserted into the insertion tube for sampling, the water inside the insertion tube enters the sampling tube first, and then the sludge can be sampled. When there is sewage inside the sampling tube that cannot be discharged, the sewage will damage the integrity of the sludge during the sampling process, and the integrity of the sludge sample needs to be improved. Therefore, this application provides a sludge sampling device to meet the needs. Utility Model Content

[0004] This invention provides a sludge sampling device to address the problem of insufficient integrity of sludge samples.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A sludge sampling device includes a plurality of threaded tubes connected together, a sampling tube slidably connected to the inner wall of the tubes, a sealing plate threadedly connected to the top of the sampling tube, and a round tube threadedly connected to the top of the sealing plate. The device also includes:

[0007] The separation mechanism includes a separation plate slidably connected to the inner wall of the sampling tube. The surface of the separation plate has an annular hole, and a round rod is fixed to the inner wall of the annular hole. A limit tube is fixed to the top of the separation plate. The surface of the limit tube has a through hole. The limit tube movably passes through the sealing plate and is slidably connected to the round tube. A limit ring is fixed to the top of the limit tube and is slidably connected to the round tube.

[0008] Preferably, the top width of the annular hole is greater than the bottom width.

[0009] Preferably, a chamfer is provided at the top edge of the annular hole, and the chamfer is arc-shaped.

[0010] Preferably, a sealing assembly is fixed to the bottom of the sealing plate, the sealing assembly including a sealing ring fixed to the bottom of the sealing plate, the shape of the sealing ring being adapted to the shape of the ring hole.

[0011] Preferably, the sealing ring is a rubber ring, and the bottom of the sealing ring is arc-shaped.

[0012] Preferably, a scraper ring is fixed to the bottom of the sealing ring, and the scraper ring is a rubber ring.

[0013] Preferably, the bottom of the scraper ring is provided with a scraper groove.

[0014] Preferably, the inner wall of the annular hole is provided with a clearance groove.

[0015] Compared with the prior art, this utility model has at least the following beneficial effects:

[0016] In the above scheme, by setting up a separation plate, annular holes, limiting tubes, and through holes, during the sampling process, the sewage first flows into the sampling tube from the annular holes, and then flows into the insertion tube from the through holes on the surface of the limiting tube and is discharged. When the sludge comes into contact with the separation plate, the sludge has difficulty entering the annular holes due to their small width, thus achieving mud-water separation. Subsequently, the sludge will push the separation plate upward until the sludge sampling is completed. After the sampling is completed, the sewage and sludge are separated, thus ensuring the integrity of the sludge sample.

[0017] By setting up a sealing component, when the separation plate approaches the sealing plate, the sealing ring will be inserted into the ring hole, thereby preventing the sewage in the insertion tube from flowing back into the sludge sample and ensuring the integrity of the sludge sample once again.

[0018] By incorporating a scraper ring, scraper groove, and clearance groove, the scraper ring contacts the inner wall of the ring hole before the sealing ring is inserted. The smooth ring curves upward, and the edge of the scraper ring contacts the inner wall of the ring hole. The scraper ring scrapes off impurities from the inner wall of the ring hole, preventing impurities from affecting the sealing effect of the sealing ring and ensuring the sealing performance. Secondly, the scraper groove increases the cavity for receiving impurities when the scraper ring scrapes them, preventing impurities from all approaching the end of the scraper ring and affecting the cleaning effect. When the scraper ring enters the clearance groove, it resets downward, preventing the scraper ring from being squeezed and damaged between the sealing ring and the ring hole, thereby improving the durability of the scraper ring. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the sampling tube of this utility model;

[0021] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0022] Figure 4 For the present utility model Figure 2 Enlarged view of the structure at point B in the middle;

[0023] Figure 5This is a schematic diagram of the sealing plate structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the separation plate structure of this utility model.

[0025] In the diagram: 1. Insertion tube; 2. Sampling tube; 3. Sealing plate; 4. Circular tube; 5. Separation mechanism; 6. Separation plate; 7. Ring hole; 8. Limiting tube; 9. Through hole; 10. Sealing assembly; 11. Sealing ring; 12. Scraping ring; 13. Scraping groove; 14. Clearance groove. Detailed Implementation

[0026] The sludge sampling device provided by this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0027] like Figures 1-6 As shown, an embodiment of this utility model provides a sludge sampling device, including a plurality of insertion tubes 1, which are threadedly connected to each other. A sampling tube 2 is slidably connected to the inner wall of the insertion tube 1. A sealing plate 3 is threadedly connected to the top of the sampling tube 2, and a round tube 4 is threadedly connected to the top of the sealing plate 3. The device also includes:

[0028] Separation mechanism 5 includes a separation plate 6 slidably connected to the inner wall of sampling tube 2. An annular hole 7 is formed on the surface of separation plate 6, and a round rod is fixed to the inner wall of the annular hole 7. A limiting tube 8 is fixed to the top of separation plate 6, and a through hole 9 is formed on the surface of limiting tube 8. The limiting tube 8 movably passes through sealing plate 3 and is slidably connected inside round tube 4. A limiting ring is fixed to the top of limiting tube 8 and slidably connected inside round tube 4. Insertion tube 1 can be extended in length via threaded connection to adapt to different sampling depth requirements, providing insertion guidance for sampling tube 2. Sampling tube 2 is used to contain sludge samples for sample collection. Plate 3 seals the top of sampling tube 2 to prevent sample leakage. Circular tube 4 provides sliding space for limiting tube 8. Separating plate 6 divides the internal space of sampling tube 2 to achieve mud-water separation. Ring hole 7 allows sewage to pass through. Circular rod is used to connect the separating plate 6, which is separated into multiple pieces by ring hole 7. Limiting tube 8 guides the separating plate 6 to slide vertically. Through hole 9 allows sewage in sampling tube 2 to flow into circular tube 4 and then out. Limiting ring restricts the sliding range of limiting tube 8 to prevent separating plate 6 from detaching from sampling tube 2. During sampling, sewage is discharged through ring hole 7 and through hole 9. Sludge pushes separating plate 6 upward, achieving mud-water separation and ensuring sample integrity.

[0029] like Figure 4As shown in this embodiment, the top width of the annular hole 7 is greater than the bottom width, which narrows the bottom opening and further blocks the passage of sludge. After the sewage enters from the bottom of the annular hole 7, the top width of the annular hole 7 becomes larger, which facilitates the passage of sewage.

[0030] like Figure 4 As shown in this embodiment, a chamfer is provided at the top edge of the annular hole 7. The chamfer is arc-shaped, which eliminates the sharpness of the top edge of the annular hole 7 and avoids scratching the parts in contact with it during use.

[0031] like Figure 3 As shown in this embodiment, a sealing component 10 is fixed to the bottom of the sealing plate 3. The sealing component 10 includes a sealing ring 11 fixed to the bottom of the sealing plate 3. The shape of the sealing ring 11 is adapted to the shape of the ring hole 7. After sampling, the sealing component 10 seals the ring hole 7. The shape of the sealing ring 11 is adapted to the ring hole 7, and it can be accurately inserted into the ring hole 7 to prevent the residual sewage in the insertion tube 1 from flowing back into the sludge sample in the sampling tube 2, thereby avoiding the sample being diluted by sewage and ensuring the purity and integrity of the sample.

[0032] like Figure 3 As shown in this embodiment, the sealing ring 11 is a rubber ring with an arc-shaped bottom. The rubber sealing ring 11 is elastic and can deform after being inserted into the ring hole 7, which enhances the fit with the inner wall of the ring hole 7 and improves the sealing performance. The arc-shaped bottom guides the sealing ring 11 to be smoothly inserted into the ring hole 7 and avoids jamming.

[0033] like Figure 3 As shown in this embodiment, a scraper ring 12 is fixed at the bottom of the sealing ring 11. The scraper ring 12 is a rubber ring. The scraper ring 12 moves synchronously with the sealing ring 11 and contacts the inner wall of the ring hole 7 before being inserted into the ring hole 7. It scrapes off the attached silt and impurities to avoid the residue of impurities affecting the fit between the sealing ring 11 and the ring hole 7, thus ensuring the sealing performance. The rubber material has both elasticity and wear resistance, which ensures the scraping effect while avoiding scratching the inner wall of the ring hole 7.

[0034] like Figure 3 As shown in this embodiment, a scraping groove 13 is provided at the bottom of the scraping ring 12. The scraping groove 13 provides a space for the impurities scraped off by the scraping ring 12, preventing impurities from accumulating at the end of the scraping ring 12 and affecting subsequent scraping operations. This ensures that the scraping ring 12 is in close contact with the inner wall of the ring hole 7 throughout the process, improving the thoroughness of impurity cleaning and providing a cleaner contact surface for the sealing of the sealing ring 11.

[0035] like Figure 4As shown in this embodiment, the inner wall of the annular hole 7 is provided with a relief groove 14, which provides a space for the scraper ring 12. When the sealing ring 11 is fully inserted into the annular hole 7, the scraper ring 12 enters the relief groove 14 to reset, thus preventing the scraper ring 12 from being squeezed between the sealing ring 11 and the annular hole 7 and causing damage, extending the service life of the scraper ring 12, and ensuring that the sealing ring 11 and the annular hole 7 are in direct contact to ensure the sealing effect.

[0036] Working principle: The sampling tube 2 is inserted into the sludge in the insertion tube 1. The sewage flows into the sampling tube 2 through the annular hole 7 of the separation plate 6, and then enters the insertion tube 1 through the through hole 9 of the limiting tube 8 and is discharged. The sludge cannot pass through the narrow annular hole 7, which pushes the separation plate 6 to move upward.

[0037] After the sludge fills the sampling tube 2, the separation plate 6 approaches the sealing plate 3. The sealing ring 11 of the sealing component 10 drives the scraper ring 12 to contact the inner wall of the ring hole 7. The scraper ring 12 lifts up to scrape off the impurities. The impurities enter the scraper groove 13. After the scraper ring 12 enters the relief groove 14 of the ring hole 7, it resets. The sealing ring 11 is inserted into the ring hole 7 to seal.

[0038] Remove sampling tube 2, disassemble insertion tube 1, sealing plate 3, etc., and take out the silt sample inside sampling tube 2.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A sludge sampling device, comprising a plurality of insertion tubes (1), wherein the plurality of insertion tubes (1) are threadedly connected to each other, a sampling tube (2) is slidably connected to the inner wall of the insertion tubes (1), a sealing plate (3) is threadedly connected to the top of the sampling tube (2), and a round tube (4) is threadedly connected to the top of the sealing plate (3), characterized in that, Also include: Separation mechanism (5), the separation mechanism (5) includes the separation plate (6) that is slidably connected in the inner wall of the sampling pipe (2), the surface of the separation plate (6) is provided with ring hole (7), the inner wall of the ring hole (7) is fixed with round bar, the top of the separation plate (6) is fixed with the limiting pipe (8), the surface of the limiting pipe (8) is provided with through hole (9), the limiting pipe (8) is slidably connected in the round pipe (4) and is slidably connected in the round pipe (4), the top of the limiting pipe (8) is fixed with the limiting ring that is slidably connected in the round pipe (4).

2. The silt sampling device of claim 1, wherein, The top width of the ring hole (7) is greater than the bottom width.

3. The silt sampling device of claim 1, wherein, The top edge of the ring hole (7) is provided with a chamfer, which is arc-shaped.

4. The silt sampling device of claim 1, wherein, The bottom of the sealing plate (3) is fixed with a sealing assembly (10), the sealing assembly (10) includes a sealing ring (11) fixed to the bottom of the sealing plate (3), and the sealing ring (11) is adapted to the shape of the ring hole (7).

5. The silt sampling device of claim 4, wherein, The sealing ring (11) is a rubber ring, and the bottom of the sealing ring (11) is arc-shaped.

6. The silt sampling device of claim 4, wherein, The bottom of the sealing ring (11) is fixed with a scraping ring (12), and the scraping ring (12) is a rubber ring.

7. The silt sampling device of claim 6, wherein, The bottom of the scraping ring (12) is provided with a scraping groove (13).

8. The silt sampling device of claim 6, wherein, The inner wall of the ring hole (7) is provided with a avoiding groove (14).

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