Columnar shallow bottom mud sampler

Abstract

The utility model discloses a columnar shallow bottom mud sampler which comprises a sampling tube, two screw rods are fixedly, symmetrically and fixedly connected to the top of the sampling tube, a connecting plate connected with the screw rods in a penetrating manner is attached to the top of the sampling tube, an end plate is fixedly connected to the top of the connecting plate through two fixing rods, and the screw rods are connected with the end plate through nuts. A threaded sleeve is fixedly connected to the top of the end plate, a drill is in threaded connection with the interior of the threaded sleeve, a handle is in threaded connection with the top of the drill, a water outlet is formed in the connecting plate, a plug covers the top of the water outlet, and a spring is fixedly connected between the top of the plug and the fixing rod. By means of the structure, the whole structure is simple, bottom mud samples can be stably collected at the bottom of a water body, operation is easy and convenient, the samples are complete, and meanwhile the device is suitable for sampling of bottom mud at different water depths and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of bottom mud environment sampling, in particular to a columnar shallow bottom mud sampler. Background Art

[0002] Sediment sampling refers to the collection of sediment samples to study the accumulation, distribution, transformation, and migration of pollutants discharged into water bodies. In environmental monitoring and geological exploration, sediment sampling is an important means of obtaining information about the bottom sediments of water bodies.

[0003] In the prior art, after searching, it was found that a Chinese patent disclosed a "shallow sediment column sampler" with the application number "201720258224.1". The above patent mainly includes a handle, a sampling device and a closing device. The handle is a T-shaped handle and a connecting handle from top to bottom, and the two are connected by a connector; the sampling device includes an outer sleeve and an inner sleeve; the lower part of the inner sleeve is provided with an inner sleeve notch, the upper end of the inner sleeve and the lower end of the connecting handle are connected by a connector, and the outer wall of the connector is provided with a groove with an internal thread; the bottom of the outer sleeve is beveled to form a drill bit, the middle part is provided with an outer sleeve notch, and the upper part has a fixed bolt track; one end of the fixed bolt passes through the fixed bolt track and is fixed to the groove; the closing device is a hinge connected to the outer sleeve. Although the above sampler can maintain the integrity of the original shallow sediment column sample to the greatest extent, it can effectively reduce the analysis error. However, the overall use steps are relatively complicated. The connector II needs to be connected to the inner sleeve. When sampling, the inner sleeve needs to be installed in the outer sleeve by rotating the fixed bolt. Then, the T-handle needs to be connected to the connecting handle. When sampling, the rotating handle needs to be operated again. After sampling, the fixed bolt needs to be operated to remove the sample. The operation is cumbersome and the sampling efficiency is low. Therefore, the utility model provides a cylindrical shallow sediment sampler to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a columnar shallow sediment sampler with a simple overall structure, which can stably collect sediment samples at the bottom of the water body, is easy to operate and can provide complete samples. At the same time, it can be applied to sediment sampling work at different water depths and is highly practical.

[0005] To achieve the above-mentioned purpose, a columnar shallow sediment sampler is provided, including a sampling tube, two screws are symmetrically fixedly connected to the top of the sampling tube, a connecting plate is attached to the top of the sampling tube and is interlaced with the screws, the top of the connecting plate is fixedly connected to an end plate through two fixing rods, the screw is connected to the end plate through a nut, the top of the end plate is fixedly connected to a threaded sleeve, the inside of the threaded sleeve is threadedly connected to a drill, the top of the drill is threadedly connected to a handle, a drain outlet is provided inside the connecting plate, the top of the drain outlet is covered with a plug, and a spring is fixedly connected between the top of the plug and the fixing rod.

[0006] According to the described columnar shallow sediment sampler, it further includes a top core member, and the top core member includes a push plate having the same inner diameter as the sampling tube and an operating rod fixedly connected to one side of the push plate.

[0007] According to the described columnar shallow sediment sampler, an anti - detachment rope is provided on the outer side of the sampling tube.

[0008] According to the described columnar shallow sediment sampler, a sealing gasket is provided between the connecting plate and the top of the sampling tube.

[0009] According to the described columnar shallow sediment sampler, the bottom of the sampling tube is provided with a serrated structure.

[0010] The utility model has the following beneficial effects:

[0011] Compared with the prior art, this columnar shallow sediment sampler has a simple overall structure, can stably collect sediment samples at the bottom of the water body, is easy to operate and the samples are complete. At the same time, it is applicable to sediment sampling work at different water depths and has strong practicability.

[0012] The additional aspects and advantages of the utility model will be partly given in the following description, partly will become obvious from the following description, or be understood through the practice of the utility model. Description of the Drawings

[0013] The following further illustrates the utility model with reference to the drawings and embodiments;

[0014] Figure 1 It is the overall structure schematic diagram of a columnar shallow sediment sampler of the utility model;

[0015] Figure 2 It is the structure schematic diagram of the sampling tube and the top core member of a columnar shallow sediment sampler of the utility model;

[0016] Figure 3 It is the split structure schematic diagram of a columnar shallow sediment sampler of the utility model after removing the drilling; [[ID=^39]]

[0017] Figure 4 It is the structure schematic diagram of the blockage, spring, connecting plate, drain hole and sealing gasket of a columnar shallow sediment sampler of the utility model.

[0018] Legend Explanation:

[0019] 1. Sampling tube; 2. Screw; 3. Connecting plate; 4. Fixed rod; 5. End plate; 6. Threaded sleeve; 7. Blockage; 8. Spring; 9. Anti - detachment rope; 10. Drilling; 11. Handle; 12. Push plate; 13. Operating rod; 14. Sealing gasket; 15. Drain hole. Detailed Embodiments

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0021] Referring to Figures 1-4 , an embodiment of the present utility model provides a columnar shallow sediment sampler, which includes a sampling tube 1 and a top core member. The diameter of the sampling tube 1 is φ89mm, and the tube length is 1 - 2m. Two screws 2 are symmetrically and fixedly connected to the top of the sampling tube 1. A connecting plate 3 is fitted to the top of the sampling tube 1 and is inserted through the screws 2. A sealing gasket 14 is provided between the connecting plate 3 and the top of the sampling tube 1. The top of the connecting plate 3 is fixedly connected to an end plate 5 through two fixing rods 4. The screws 2 are connected to the end plate 5 through nuts. A threaded sleeve 6 is fixedly connected to the top of the end plate 5. A drill rod 10 is threadedly connected inside the threaded sleeve 6. A handle 11 is threadedly connected to the top of the drill rod 10. The bottom of the drill rod 10 is provided with an external thread structure, and the top is provided with an internal thread structure. At the same time, the bottom of the handle 11 is provided with an external thread structure, which is convenient for connecting the drill rod 10 according to different water depths. The length of the drill rod 10 is set to 1 meter each. A drain port 15 is provided inside the connecting plate 3. A plug 7 covers the top of the drain port 15. A spring 8 is fixedly connected between the top of the plug 7 and the fixing rod 4.

[0022] During the sampling process, the drill rod 10 is connected to the threaded sleeve 6, and the drill rods 10 are connected in sequence according to the water depth. When the sampling tube 1 enters the sediment, the sampling tube 1 is hammered by a gravity hammer to make it enter deeper into the sediment until it can no longer enter. And when the sampling tube 1 moves downward in the water, the elastically supported plug 7 can move upward, so as to discharge the water body inside the sampling tube 1 through the drain port 15. When the sampling tube 1 moves upward, the spring 8 and the water body can realize the automatic closing of the plug 7. Then the sampling tube 1 is pulled out of the sediment. At this time, the sample is in the sampling tube 1. After pulling out of the water surface, the sampling tube 1 is disassembled and removed, and the sample is taken out with the top core member, and sundries such as stones and shells are removed, and the sampling is completed. The overall structure is simple, which can stably collect sediment samples at the bottom of the water body, with simple operation and complete samples. At the same time, it is applicable to sediment sampling work at different water depths, and has strong practicability.

[0023] By rotating the handle 11, the drill rod 10 can effectively cut the sediment and introduce the sediment into the sampling tube 1. After the sediment collection is completed, the drain port 15 inside the connecting plate 3 can be closed by the plug 7. A spring 8 is connected between the top of the plug 7 and the fixing rod 4 to ensure that there is no sediment leakage during the sampling process.

[0024] The top core component includes a push plate 12 with the same inner diameter as the sampling tube 1 and an operating rod 13 fixedly connected to one side of the push plate 12. The push plate 12 is inserted into the sampling tube 1, and the operating rod 13 is used to push the push plate 12 to move, so as to facilitate taking out the sediment sample from the sampling tube 1.

[0025] To enhance the stability of the sampler, an anti - detachment rope 9 is provided on the outer side of the sampling tube 1 to prevent the sampler from accidentally falling off during operation. The bottom of the sampling tube 1 is provided with a serrated structure, which can effectively enhance its cutting ability, making it easier to penetrate the sediment during sampling and ensuring the smooth progress of sampling.

[0026] Working principle: During the sampling process, the drill 10 is connected to the threaded sleeve 6, and the drills 10 are connected in sequence according to the water depth. When the sampling tube 1 enters the sediment, the sampling tube 1 is hammered by the gravity hammer to make it penetrate deeper into the sediment until it can no longer enter. When the sampling tube 1 moves downward in the water, the elastic - supported plug 7 can move upward, so as to drain the water inside the sampling tube 1 through the drain port 15. When the sampling tube 1 moves upward, the spring 8 and the water body can make the plug 7 automatically close. Then the sampling tube 1 is pulled out of the sediment. At this time, the sample is in the sampling tube 1. After pulling it out of the water, the sampling tube 1 is disassembled and removed, and the sample is taken out with the top core component. Debris such as stones and shells are removed, and the sampling is completed. The overall structure is simple, it can stably collect sediment samples at the bottom of the water body, the operation is simple and the sample is complete. At the same time, it is applicable to sediment sampling work at different water depths, and has strong practicability.

[0027] The above - mentioned embodiments of the present invention have been described in detail with reference to the accompanying drawings. However, the present invention is not limited to the above - mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the relevant technical field, various changes can be made without departing from the purpose of the present invention.

Claims

1. A columnar shallow sediment sampler, characterized in that, It includes a sampling tube (1). At the top of the sampling tube (1), two screws (2) are symmetrically and fixedly connected. A connecting plate (3) that is inserted and connected with the screws (2) is attached to the top of the sampling tube (1). At the top of the connecting plate (3), an end plate (5) is fixedly connected through two fixing rods (4). The screws (2) are connected to the end plate (5) through nuts. At the top of the end plate (5), a threaded sleeve (6) is fixedly connected. A drill (10) is threadedly connected inside the threaded sleeve (6). A handle (11) is threadedly connected to the top of the drill (10). A drain port (15) is provided inside the connecting plate (3). A plug (7) covers the top of the drain port (15). A spring (8) is fixedly connected between the top of the plug (7) and the fixing rod (4).

2. The columnar shallow sediment sampler according to claim 1, characterized in that, It further includes a top core component. The top core component includes a push plate (12) having the same inner diameter as the sampling tube (1) and an operating rod (13) fixedly connected to one side of the push plate (12).

3. The columnar shallow sediment sampler according to claim 2, characterized in that, An anti - detachment rope (9) is provided outside the sampling tube (1).

4. The columnar shallow sediment sampler according to claim 3, characterized in that, A sealing gasket (14) is provided between the connecting plate (3) and the top of the sampling tube (1).

5. The columnar shallow sediment sampler according to claim 4, characterized in that, The bottom of the sampling tube (1) is provided with a serrated structure.

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