Bottom mud sampling mechanism convenient to open and close

Abstract

The utility model relates to the field of bottom mud samplers, in particular to a bottom mud sampling mechanism convenient to open and close, which comprises a fixing plate, two rotating grooves are arranged on the fixing plate, rotating shafts are rotatably connected in the two rotating grooves, connecting blocks are fixedly connected onto the rotating shafts, and an excavator bucket is fixedly connected onto the connecting blocks. A supporting frame used for being connected with the fixing plate is arranged on the fixing plate, a driving assembly used for oppositely rotating the two rotating shafts is arranged on the supporting frame, the two transmission gears are driven to oppositely rotate through the linkage design of a waterproof electric push rod and a double-face rack, and then the bucket is driven to be synchronously closed. The two buckets can be combined to form a complete closed space, a closed gap is thoroughly eliminated, the two buckets can be tightly attached even under the action of water resistance and bottom mud resistance, bottom mud samples are prevented from falling off due to the gap in the rising process, and the sampling success rate is remarkably increased.

Description

Technical Field

[0001] This utility model relates to the field of sediment sampler technology, specifically to a sediment sampling mechanism that is easy to open and close. Background Technology

[0002] Sediment sampling is an important part of environmental monitoring, ecological research and geological surveys. It is used to obtain sediment samples from the bottom of water bodies to analyze pollutant distribution, sedimentary environment and ecological health. Since sediment can release pollutants into water bodies, causing endogenous pollution, the collection and analysis of sediment has become an important way to control water pollution.

[0003] Chinese patent CN210533776U discloses a grabbing portable sampling device for collecting river and lake bottom sediment. Some of its components are detachable and screw-on, making it easy to carry. It relies on an external rope to pull the bottom for sampling, making it simple to operate and allowing for single-person operation. A fixed-length threaded steel pipe can be used to measure water depth, improving the versatility of the device.

[0004] In the above scheme, the grab bucket rotates to collect samples of the bottom sediment by using its own weight after the rope is released. However, when the grab bucket is at the bottom of the river, it is limited by the resistance of the water and the resistance of the bottom sediment. This causes a certain gap to be generated when the grab bucket is closed, which in turn causes the sample to fall when the grab bucket rises and moves, resulting in sampling failure.

[0005] Therefore, this invention provides a sediment sampling mechanism that is easy to open and close, in order to solve the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model provides a bottom sediment sampling mechanism that is easy to open and close, so as to solve the problem that when the grab bucket is on the river bottom, it is limited by the resistance of water and the resistance of bottom sediment to the grab bucket. This causes a certain gap to be generated when the grab bucket is closed, which in turn causes the sample to fall when the grab bucket rises and moves, resulting in sampling failure.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A sediment sampling mechanism that is easy to open and close includes a fixed plate with two rotating slots. A rotating shaft is rotatably connected to each of the two rotating slots. A connecting block is fixedly connected to the rotating shaft, and a bucket is fixedly connected to the connecting block. A support frame for connecting the fixed plate is provided on the fixed plate, and a drive assembly for rotating the two rotating shafts in opposite directions is provided on the support frame.

[0009] Preferably, the bottom surface of the bucket is provided with an opening, and the bucket is provided with water-permeable holes.

[0010] Preferably, the support frame includes connecting frames fixedly connected to both sides of the fixed plate, a connecting plate is provided above the fixed plate, and the two ends of the connecting plate are respectively fixedly connected to the two connecting frames. A connecting ring is fixedly connected to the connecting plate, and a pull rope is installed on the connecting ring.

[0011] Preferably, the drive assembly includes two support plates fixedly connected to a fixed plate, and one end of each support plate is fixedly connected to a connecting frame. Two drive shafts are arranged above the fixed plate, and the two ends of each drive shaft are rotatably connected to the two support plates respectively. A second pulley is fixedly connected to the rotating shaft, and a first pulley is fixedly connected to the drive shaft. The first pulley is connected to the second pulley via a belt.

[0012] Preferably, a waterproof electric push rod is installed on the connecting plate, and a double-sided rack is fixedly connected to the telescopic end of the waterproof electric push rod. A transmission gear is fixedly connected to each of the two transmission shafts, and the transmission gear meshes with the double-sided rack.

[0013] Preferably, the open end of the bucket is located below the fixed plate.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. Through the linkage design of waterproof electric push rod and double-sided rack, the two transmission gears are driven to rotate in opposite directions, thereby driving the bucket to close synchronously. This ensures that the two buckets form a complete closed space when they are combined, completely eliminating the closing gap. Even under the action of water resistance and bottom mud resistance, they can fit tightly together, preventing bottom mud samples from falling off due to gaps during the ascent, and significantly improving the sampling success rate.

[0016] 2. The bucket, designed with a quarter-sphere shape, has a regular internal space and large volume, which can hold more bottom sediment samples. At the same time, the spherical curved surface reduces resistance when cutting into the bottom sediment, making it easier to dig quickly. In addition, the water-permeable holes on the bucket can drain water in time during the sampling process, reducing the impact of water resistance on the bucket closure and preventing sample loss due to water flow impact. Attached Figure Description

[0017] Figure 1 The three-dimensional representation of this utility model Figure 1 .

[0018] Figure 2 The three-dimensional representation of this utility model Figure 2 .

[0019] Figure 3 This is a cross-sectional view of the present invention.

[0020] Figure 4This is a schematic diagram of the drive component in this utility model.

[0021] In the diagram: 1. Fixed plate; 2. Rotating groove; 3. Rotating shaft; 4. Connecting block; 5. Bucket; 6. Connecting frame; 7. Connecting plate; 8. Support plate; 9. Connecting ring; 10. Pull rope; 11. Water-permeable hole; 12. Drive shaft; 13. First pulley; 14. Second pulley; 15. Transmission gear; 16. Waterproof electric push rod; 17. Double-sided rack. Detailed Implementation

[0022] The following will refer to the attached reference. Figures 1 to 4 The various embodiments of this utility model will be described in detail below. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this utility model and are not intended to limit the scope of protection of this utility model.

[0023] A sediment sampling mechanism that is easy to open and close includes a fixed plate 1. The fixed plate 1 has two rotating grooves 2. A rotating shaft 3 is rotatably connected to each of the two rotating grooves 2. A connecting block 4 is fixedly connected to the rotating shaft 3. A bucket 5 is fixedly connected to the connecting block 4. The bottom surface of the bucket 5 is provided with an opening. A water-permeable hole 11 is provided on the bucket 5. The open end of the bucket 5 is located below the fixed plate 1.

[0024] Both buckets 5 are quarter-spheres, and their interiors are designed to hold samples. When the two buckets 5 are rotated and joined together, the bottom mud can be scooped into the inside of the buckets 5, and the samples are placed in the closed space formed by the two buckets 5.

[0025] In this embodiment, a support frame for connecting the fixed plate 1 is provided on the fixed plate 1. The support frame includes a connecting frame 6 fixedly connected to both sides of the fixed plate 1. A connecting plate 7 is provided above the fixed plate 1, and both ends of the connecting plate 7 are fixedly connected to the two connecting frames 6 respectively. A connecting ring 9 is fixedly connected to the connecting plate 7, and a pull rope 10 is installed on the connecting ring 9.

[0026] The pull rope 10 is designed with scale lines, which can be used to monitor the depth of the sampling device at the bottom of the water, and the sampling device can also be moved by pulling the rope 10.

[0027] In this embodiment, the support frame is provided with a drive assembly for rotating the two rotating shafts 3 in opposite directions. The drive assembly includes two support plates 8 fixedly connected to the fixed plate 1, and one end of the support plate 8 is fixedly connected to the connecting frame 6. Two transmission shafts 12 are provided above the fixed plate 1, and the two ends of the two transmission shafts 12 are respectively rotatably connected to the two support plates 8. A second pulley 14 is fixedly connected to the rotating shaft 3, and a first pulley 13 is fixedly connected to the transmission shaft 12. The first pulley 13 is connected to the second pulley 14 through a belt.

[0028] The linkage between the first pulley 13 and the second pulley 14 is achieved by the pulleys, which enables the drive shaft 12 to drive the rotating shaft 3 to rotate synchronously when it rotates, and causes the connecting block 4 to drive the bucket 5 to rotate, thereby completing the excavation and sampling.

[0029] In this embodiment, a waterproof electric push rod 16 is installed on the connecting plate 7. A double-sided rack 17 is fixedly connected to the telescopic end of the waterproof electric push rod 16. A transmission gear 15 is fixedly connected to each of the two transmission shafts 12, and the transmission gear 15 meshes with the double-sided rack 17.

[0030] The telescopic end of the waterproof electric push rod 16 drives the double-sided rack 17 to move, and the meshing of the double-sided rack 17 with the transmission gear 15 causes the two transmission gears 15 to rotate in opposite directions, that is, the two transmission gears 15 rotate in opposite directions, so that the two buckets 5 rotate in opposite directions, thus forming a closed cavity after digging and sampling to store the sample.

[0031] Through the linkage design of the waterproof electric push rod 16 and the double-sided rack 17, the two transmission gears 15 are driven to rotate in opposite directions, thereby driving the bucket 5 to close synchronously. This ensures that the two buckets 5 form a complete closed space when they are combined, completely eliminating the closing gap. Even under the action of water resistance and bottom mud resistance, they can fit tightly together, preventing the bottom mud sample from falling due to gaps during the ascent, and significantly improving the sampling success rate.

[0032] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A sediment sampling mechanism for facilitating opening and closing control, comprising a fixed plate (1), characterized in that, The fixed plate (1) has two rotating slots (2), and a rotating shaft (3) is rotatably connected in each of the two rotating slots (2). A connecting block (4) is fixedly connected to the rotating shaft (3), and a bucket (5) is fixedly connected to the connecting block (4). The fixed plate (1) is provided with a support frame for connecting the fixed plate (1), and the support frame is provided with a drive assembly for rotating the two rotating shafts (3) in opposite directions.

2. A sediment sampling mechanism with easy opening and closing control according to claim 1, characterized in that, The bottom surface of the bucket (5) is provided with an opening, and the bucket (5) is provided with a water-permeable hole (11).

3. The sediment sampling mechanism of claim 1, wherein, The support frame includes connecting frames (6) fixedly connected to both sides of the fixed plate (1). A connecting plate (7) is provided above the fixed plate (1), and the two ends of the connecting plate (7) are fixedly connected to the two connecting frames (6) respectively. A connecting ring (9) is fixedly connected to the connecting plate (7), and a pull rope (10) is installed on the connecting ring (9).

4. A sediment sampling mechanism according to claim 3, wherein, The drive assembly includes two support plates (8) fixedly connected to the fixed plate (1), and one end of the support plate (8) is fixedly connected to the connecting frame (6). Two drive shafts (12) are arranged above the fixed plate (1). The two ends of the two drive shafts (12) are rotatably connected to the two support plates (8). A second pulley (14) is fixedly connected to the rotating shaft (3). A first pulley (13) is fixedly connected to the drive shaft (12), and the first pulley (13) is connected to the second pulley (14) through a belt.

5. A sediment sampling mechanism according to claim 4, wherein, A waterproof electric push rod (16) is installed on the connecting plate (7). A double-sided rack (17) is fixedly connected to the telescopic end of the waterproof electric push rod (16). A transmission gear (15) is fixedly connected to each of the two transmission shafts (12), and the transmission gear (15) meshes with the double-sided rack (17).

6. The sediment sampling mechanism of claim 1, wherein, The open end of the bucket (5) is located below the fixed plate (1).

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