River sediment sampling device

Abstract

This utility model provides a riverbed sediment sampling device, including a support rod with a handle at the top. A limiting component is connected to the top of the handle. A sampling box with a triangular structure is fixed to the bottom of the support rod. The sampling box has a sampling chamber and an inner cavity inside. The sampling chamber is located directly above the inner cavity. The bottom end of the support rod is fixed to the bottom of the sampling chamber. A feed inlet is located on each side of the inner cavity, and a feed baffle is provided inside each feed inlet. This utility model has the following advantages: through the design of the starting mechanism and the limiting component, the sampling box can be opened and closed after entering the riverbed sediment, thus ensuring that the sampling chamber will not be opened before sampling. The sampling chamber is only in the open feeding state during sampling, preventing water flow or other objects from entering the sampling chamber and interfering with the sediment sample.

Description

Technical Field

[0001] This utility model is a river sediment sampling device, belonging to the field of river sampling devices. Background Technology

[0002] Analysis of bottom sediments in aquatic environments is a crucial process. Sediments, commonly known as bottom sediments, are an important part of aquatic research. Bottom sediments are an essential component of aquatic ecosystems, and their biological communities, chemical composition, chemical state, especially their redox state, directly affect the self-purification capacity of rivers and the water quality of overlying water bodies.

[0003] Currently, river sediment samplers are used when sampling river sediments. However, when the sampler is submerged in the river, a large amount of river water or other substances are mixed into the sample, diluting the sample and affecting the accuracy of the test results. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a river sediment sampling device.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A river sediment sampling device includes a support rod with a handle at the top and a limiting component connected to the top of the handle. A sampling box with a triangular structure is fixed to the bottom of the support rod. The sampling box has a sampling chamber and an inner cavity inside, with the sampling chamber located directly above the inner cavity. The bottom end of the support rod is fixed to the bottom of the sampling chamber. A feed inlet is provided on each side of the sampling chamber, and a feed baffle is provided inside the feed inlet. An actuation mechanism that cooperates with the feed baffle is provided inside the sampling chamber. The end of the actuation mechanism extends through to the top of the support rod and connects to the limiting component.

[0006] Furthermore, the starting mechanism includes a rotating shaft rotatably connected inside the inner cavity. A toothed ring is fixed at the bottom end of the rotating shaft, and a rack plate is engaged on one side of the toothed ring. The rack plate is linearly slidably connected to the bottom of the inner cavity. An opening traction rope and a closing traction rope are fixed on both sides of the rack plate, respectively. The ends of the opening traction rope and the closing traction rope respectively extend through the top of the support rod and are connected to the limiting component. The top end of the rotating shaft extends through the feed inlet and is connected and fixed to the feed baffle.

[0007] Furthermore, the inner cavity is provided with guide wheels that cooperate with both the opening traction rope and the closing traction rope.

[0008] Furthermore, the support rod has through holes that cooperate with both the opening traction rope and the closing traction rope.

[0009] Furthermore, a base plate is connected to the bottom opening of the inner cavity via an ear plate and bolts, the starting mechanism is mounted on the base plate, and a sealing strip is provided at the junction of the base plate and the bottom opening of the inner cavity.

[0010] Furthermore, the limiting component includes an opening ring and a closing ring, both of which are connected and fixed to the ends of the opening traction rope and the closing traction rope that extend above the support rod, respectively.

[0011] Furthermore, the limiting assembly also includes a fixing plate fixed to the top of the handle, and a hook is fixed to the top side of the fixing plate, the hook being compatible with both the opening ring and the closing ring.

[0012] Furthermore, a reinforcing block is provided at the connection between the support rod and the sampling box, and a gripping groove is fixed on the handle.

[0013] The beneficial effects of this utility model are: Through the design of the starting mechanism, during sampling, two opening traction ropes are pulled respectively. The opening traction ropes are pulled upward, which in turn pulls the rack plate to move linearly within the inner cavity. The movement of the rack plate drives the gear ring and the rotating shaft to rotate. The rotation of the rotating shaft drives the feed baffle to rotate, thereby opening the feed port. At this time, the rising opening ring is suspended on the hook, which then restricts the opening of the feed baffle. Then, by using the handle, the sampling box is moved in a small range within the sludge. The moving sampling box scrapes the sludge into the sampling chamber through the triangular inclined surface. At the same time, the rotating opening feed baffle can assist in the feeding of sludge. After feeding is completed, the closing traction rope is pulled to move the rack plate back to its original position. The rack plate drives the gear ring, the rotating shaft, and the feed baffle to rotate back to the feed port, thereby sealing the feed port. Finally, the sampling box is removed from the sludge to complete the sampling.

[0014] By designing the limiting component, when the traction rope is pulled to open or close, the opening or closing of the lifting ring can be restricted by opening the ring and closing the hook, thereby limiting the state of the starting mechanism. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a river sediment sampling device according to the present invention; Figure 2 This is a partial structural schematic diagram of a river sediment sampling device according to the present invention; Figure 3 This is a partial structural diagram of the starting mechanism of a river sediment sampling device according to the present invention. Figure 1 ; Figure 4 This is a partial structural diagram of the starting mechanism of a river sediment sampling device according to the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the limiting component structure of a river sediment sampling device according to the present invention.

[0017] In the diagram, 1. Support rod; 2. Sampling box; 3. Sampling chamber; 4. Feed inlet; 5. Rotating shaft; 6. Feed baffle; 7. Inner cavity; 8. Gear ring; 9. Gear plate; 10. Open traction rope; 11. Close traction rope; 12. Open lifting ring; 13. Close lifting ring; 14. Handle; 15. Grip groove; 16. Fixing plate; 17. Hook; 18. Reinforcing block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-5This utility model provides a technical solution for a river sediment sampling device, including a support rod 1. The top of the support rod 1 has a handle 14 with a grip groove 15 fixed thereon. A limit component is connected to the top of the handle 14. A sampling box 2 is fixed to the bottom of the support rod 1. A reinforcing block 18 is provided at the connection between the support rod 1 and the sampling box 2. The sampling box 2 has a triangular structure and contains a sampling cavity 3 and an inner cavity 7. The sampling cavity 3 is located directly above the inner cavity 7. The bottom end of the support rod 1 is fixed to the bottom of the sampling cavity 3. The sampling cavity 3 has two sides... A separate feed inlet 4 is provided, and a feed baffle 6 is provided inside the feed inlet 4. An actuation mechanism that cooperates with the feed baffle 6 is provided inside the sampling chamber 3. The end of the actuation mechanism extends through to the top of the support rod 1 and is connected to the limiting component. Through the design of the actuation mechanism and the limiting component, this utility model can open and close the sampling box 2 after it enters the riverbed silt, thereby ensuring that the sampling chamber 3 will not be opened before the sampling work. The sampling chamber 3 is only in the open feeding state during the sampling process, avoiding the water flow or other objects in the river from entering the sampling chamber 3 and interfering with the silt sample.

[0020] See Figures 2-4 The starting mechanism includes a rotating shaft 5 rotatably connected inside the inner cavity 7. A toothed ring 8 is fixed to the bottom end of the rotating shaft 5. A rack plate 9 meshes with one side of the toothed ring 8. The rack plate 9 is linearly slidably connected to the bottom of the inner cavity 7. An opening traction rope 10 and a closing traction rope 11 are fixed to both sides of the rack plate 9, respectively. The ends of the opening traction rope 10 and the closing traction rope 11 respectively extend through the upper part of the support rod 1 and connect to the limiting assembly. The support rod 1 has through holes that cooperate with both the opening traction rope 10 and the closing traction rope 11. The top end of the rotating shaft 5 extends through the feed inlet 4 and connects and is fixed to the feed baffle 6. Through the design of the starting mechanism, when sampling, the two opening traction ropes 10 are pulled upwards. The movement of the rack plate 9 causes it to move linearly within the inner cavity 7. The movement of the rack plate 9 causes the gear ring 8 and the rotating shaft 5 to rotate. The rotation of the rotating shaft 5 causes the feed baffle 6 to rotate, thereby opening the feed port 4. At this time, the rising opening ring 12 is suspended on the hook 17, thereby limiting the opening feed baffle 6. Then, the sampling box 2 is moved in a small range in the sludge by the handle 14. The moving sampling box 2 will scrape the sludge into the sampling cavity 3 through the triangular inclined surface. At the same time, the rotating opening feed baffle 6 can assist the sludge feeding. After the feeding is completed, the rack plate 9 is moved back to its original position by pulling the closing traction rope 11. The rack plate 9 will cause the gear ring 8, the rotating shaft 5 and the feed baffle 6 to rotate back to the feed port 4, thereby sealing the feed port 4. Then, the sampling box 2 is removed from the sludge to complete the sampling.

[0021] See Figure 4 The inner cavity 7 is provided with guide wheels that cooperate with both the opening traction rope 10 and the closing traction rope 11; the design of the guide wheels can limit the movement trajectory of the opening traction rope 10 and the closing traction rope 11 while reducing wear on both.

[0022] See Figure 4 The bottom opening of the inner cavity 7 is connected to a base plate by an ear plate and bolts. The starting mechanism is installed on the base plate. A sealing strip is provided at the junction of the base plate and the bottom opening of the inner cavity 7. The design of the base plate facilitates the installation and adaptation of the starting mechanism and the inner cavity 7. The sealing strip is provided to prevent riverbed silt from entering the inner cavity 7.

[0023] See Figure 5 The limiting component includes an opening ring 12 and a closing ring 13. The opening ring 12 and the closing ring 13 are respectively connected and fixed to the ends of the opening traction rope 10 and the closing traction rope 11 that pass through to the top of the support rod 1. The limiting component also includes a fixing plate 16 fixed to the top of the handle 14. A hook 17 is fixed to the top side of the fixing plate 16. The hook 17 is adapted to both the opening ring 12 and the closing ring 13. Through the design of the limiting component, when the opening traction rope 10 or the closing traction rope 11 is pulled, the opening ring 12 or the closing ring 13 can be limited by the adaptation of the opening ring 12, the closing ring 13 and the hook 17, thereby limiting the state of the starting mechanism.

[0024] When faced with hard or sticky riverbed silt that is inconvenient to excavate, a miniature electric telescopic rod can be installed on the side of the fixing plate 16 and below the hook 17. The pulling force of the electric telescopic rod can be used to quickly pull open the traction rope 10 or close the traction rope 11, thereby meeting the application requirements of the device in different river environments.

[0025] In use, first insert the triangular sampling box 2 into the riverbed silt using the support rod 1. Then, pull the two opening rings 12 to pull the two opening traction ropes 10. Pulling the opening traction ropes 10 upwards will cause the rack plate 9 to move linearly within the inner cavity 7. The movement of the rack plate 9 will cause the rack ring 8 and the rotating shaft 5 to rotate. The rotation of the rotating shaft 5 will cause the feed baffle 6 to rotate, thereby opening the feed port 4. At this time, the rising opening rings 12 are suspended on the hook 17, which will then restrain the opening feed baffle 6. Then, the sampling box 2 can be moved slightly within the silt using the handle 14. The moving sampling box 2 scrapes the sludge into the sampling chamber 3 through the triangular inclined plane. At the same time, the rotating and opening feed baffle 6 can assist the sludge feeding. After the feeding is completed, the opening lifting ring 12 is removed from the hook 17. Then, the closing lifting ring 13 is lifted and suspended on the hook 17. During the lifting of the closing lifting ring 13, the closing traction rope 11 pulls the rack plate 9 to reset and move. The rack plate 9 will drive the rack ring 8, the rotating shaft 5 and the feed baffle 6 to reset and rotate into the feed inlet 4, thereby blocking the feed inlet 4. Then, the sampling box 2 can be removed from the sludge to complete the sampling.

[0026] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A river sediment sampling device, characterized by, The device includes a support rod (1), with a handle (14) at the top of the support rod (1). A limit assembly is connected to the top of the handle (14). A sampling box (2) is fixed at the bottom of the support rod (1). The sampling box (2) has a triangular structure. A sampling cavity (3) and an inner cavity (7) are provided inside the sampling box (2). The sampling cavity (3) is located directly above the inner cavity (7). The bottom end of the support rod (1) is fixed to the bottom of the sampling cavity (3). A feed inlet (4) is provided on each side of the sampling cavity (3). A feed baffle (6) is provided inside the feed inlet (4). An activation mechanism that cooperates with the feed baffle (6) is provided inside the sampling cavity (3). The end of the activation mechanism extends through to the top of the support rod (1) and is connected to the limit assembly.

2. A river sediment sampling device according to claim 1, wherein, The starting mechanism includes a rotating shaft (5) rotatably connected inside the inner cavity (7). A toothed ring (8) is fixed at the bottom end of the rotating shaft (5). A rack plate (9) is engaged on one side of the toothed ring (8). The rack plate (9) is linearly slidably connected to the bottom of the inner cavity (7). An opening traction rope (10) and a closing traction rope (11) are fixed on both sides of the rack plate (9). The ends of the opening traction rope (10) and the closing traction rope (11) respectively move through to the top of the support rod (1) and connect to the limiting component. The top end of the rotating shaft (5) moves through to the feed inlet (4) and connects and is fixed to the feed baffle (6).

3. A river sediment sampling device according to claim 2, wherein, The inner cavity (7) is provided with a guide wheel that cooperates with both the opening traction rope (10) and the closing traction rope (11).

4. A river sediment sampling device according to claim 3, wherein, The support rod (1) has a through hole that matches the opening traction rope (10) and the closing traction rope (11).

5. A river sediment sampling device according to claim 4, wherein, The bottom opening of the inner cavity (7) is connected to a base plate by an ear plate and bolts. The starting mechanism is installed on the base plate, and a sealing strip is provided at the junction of the base plate and the bottom opening of the inner cavity (7).

6. A river sediment sampling device according to claim 5, wherein, The limiting assembly includes an opening ring (12) and a closing ring (13), which are respectively connected and fixed to the ends of the opening traction rope (10) and the closing traction rope (11) that pass through to the top of the support rod (1).

7. A river sediment sampling device according to claim 6, wherein, The limiting assembly also includes a fixing plate (16) fixed to the top of the handle (14), and a hook (17) is fixed to the top side of the fixing plate (16), which is compatible with both the opening ring (12) and the closing ring (13).

8. A river sediment sampling device according to claim 7, characterised in that, A reinforcing block (18) is provided at the connection between the support rod (1) and the sampling box (2), and a grip groove (15) is fixed on the handle (14).

Images