River sediment sampling device for hydrology and water resources

Abstract

The utility model relates to the technical field of river bottom mud sampling, in particular to a river bottom mud sampling device for hydrology and water resources, which comprises a sampling machine main body, and a plurality of uniformly distributed cutting knives are fixedly connected to the bottom end of the sampling machine main body; the sampling mechanism is used for conveniently sampling and taking bottom mud in the sampling device and is arranged on the inner wall of the sampling machine main body; the sampler body can be easily inserted into bottom mud for sampling by driving the cutting knife to rotate through the motor, the first electric push rod extends to one end to drive the baffles to rotate upwards, so that one ends of the multiple baffles are connected and combined together, the bottom of the sampler body can be shielded, and the bottom mud in the sampler body is prevented from falling to the outside; a second electric push rod drives a piston plate to move upwards so as to assist the sampling machine main body in sampling the bottom mud, and when the piston plate moves downwards, the bottom mud can be extruded out of the sampling machine main body, so that the river bottom mud can be effectively sampled, and the bottom mud is convenient to take.

Description

Technical Field

[0001] This utility model relates to the field of river sediment sampling technology, and in particular to a river sediment sampling device for hydrological and water resource purposes. Background Technology

[0002] Water is one of the most precious resources on Earth. Hydrology is the discipline that systematically observes, analyzes, and evaluates the characteristics of water flow. Water resources refer to the various resources involved in the hydrological process. The study of hydrology and water resources is crucial for ensuring the human living environment and achieving sustainable development. In the development of hydrology and water resources, it is necessary to use sampling devices to sample river sediments and test water resources.

[0003] A search of the Chinese patent "A Riverbed Sediment Sampling Device for Hydrological and Water Resources Engineering" (publication number CN221612449U) reveals that this patent utilizes an outer tube and a replaceable inner tube with a threaded sleeve at the lower end. A one-way valve is integrated into the lower end of the outer tube. This allows sediment to naturally open the valve upon entry, while during retraction, the valve becomes clogged, preventing rapid leakage and reducing sediment loss during sampler removal. Furthermore, the replaceable inner tube and mounting ring facilitate sampling of various types of sediment, improving the device's overall performance. In terms of practicality, the device uses a handle to drive the piston rod and piston to slide and retract within the replaceable inner tube. River sediment is stored in the replaceable inner tube under the action of negative pressure and downward pressure. When the sediment falls into the replaceable inner tube, it will be blocked because it is in the opposite direction to the opening and closing of the one-way valve. However, when the sediment is removed, the one-way valve will block it, and it is too troublesome to disassemble the inner tube. Moreover, when sampling by negative pressure, the water flow in the river will enter the inner tube, affecting the storage effect of the sampling device and making it inconvenient to effectively sample and remove the sediment, thus reducing the effectiveness of the device.

[0004] Therefore, a river sediment sampling device for hydrology and water resources is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a river sediment sampling device for hydrology and water resources to solve the above-mentioned problems, thereby improving the inconvenience of effectively sampling and retrieving sediment.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a river sediment sampling device for hydrology and water resources, comprising a sampling machine body, wherein several evenly distributed cutting blades are fixedly connected to the bottom end of the sampling machine body; a sampling mechanism, which is disposed on the inner wall of the sampling machine body for facilitating the sampling and retrieval of sediment within the sampling device; wherein the sampling mechanism includes several baffles evenly arranged and rotatably connected to the bottom end of the inner wall of the sampling machine body, a first electric push rod is hinged to one side of the baffle, the other end of the first electric push rod is hinged to the inner wall of the sampling machine body, and a limit component is provided on the outer wall of the sampling machine body.

[0007] Preferably, the sampling mechanism further includes a second electric push rod installed at the top of the inner wall of the sampling machine body, one end of the second electric push rod being fixedly connected to a piston plate, and the piston plate being slidably connected to the inner wall of the sampling machine body.

[0008] Preferably, a drain pipe is connected to one side of the inner wall of the sampler body, and a one-way valve is connected to the other end of the drain pipe.

[0009] Preferably, a filter screen is provided at one end of the drain pipe and the other end of the one-way valve.

[0010] Preferably, the filter screen is fixedly connected to the inner wall of the sampler body.

[0011] Preferably, the limiting component includes a fixing plate fixedly connected to the outer wall of the sampler body, and two threaded rods are fixedly connected to both sides of the top of the fixing plate, with a threaded cap threaded to one end of each threaded rod.

[0012] Preferably, a number of evenly arranged counterweights are installed at the top of the fixing plate, and one end of the threaded rod extends through the outside of the counterweights.

[0013] The beneficial effects of this utility model are:

[0014] 1. When sampling river sediment, the main body of the sampler is driven by a motor to rotate the cutting blade, which can easily insert into the sediment for sampling. The first electric push rod extends to one end, causing the baffle to rotate upward, connecting one end of multiple baffles together to shield the bottom of the sampler body and prevent the sediment inside the sampler body from falling to the outside. The second electric push rod drives the piston plate to move upward, which can assist the sampler body in sampling the sediment. When the piston plate moves downward, it can squeeze the sediment out of the sampler body. The drain pipe and the one-way valve work together to discharge the water inside the sampler body. The filter screen can intercept the mud inside and outside the sampler body, which can effectively sample river sediment and facilitate the removal of the sediment.

[0015] 2. When the main body of the sampler enters the river to sample the bottom sediment, the fixing plate on the outside of the main body of the sampler limits the installation of multiple counterweights through two threaded rods on the top, increasing the weight of the main body of the sampler. This reduces the impact of the water flow on the main body of the sampler, allowing the main body of the sampler to maintain vertical movement. The threaded cap and threaded rod cooperate to fix the counterweights, which can improve the sampling effect of the main body of the sampler. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the appearance of the present utility model;

[0017] Figure 2 This is a schematic diagram of the sampling mechanism of this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of A in the middle;

[0019] Figure 4 for Figure 3 Enlarged view of B in the middle;

[0020] Figure 5 This is a schematic diagram of the limiting component of this utility model.

[0021] In the diagram: 100, main body of the sampler; 200, cutting blade; 300, sampling mechanism; 310, baffle; 320, first electric push rod; 330, second electric push rod; 340, piston plate; 350, drain pipe; 360, one-way valve; 370, filter screen; 380, limiting assembly; 381, fixing plate; 382, ​​threaded rod; 383, threaded cap; 384, counterweight. Detailed Implementation

[0022] 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.

[0023] In practical implementation: such as Figure 1-5As shown, a river sediment sampling device for hydrological and water resources includes a sampling machine body 100, with several evenly distributed cutting blades 200 fixedly connected to the bottom end of the sampling machine body 100; a sampling mechanism 300, which is disposed on the inner wall of the sampling machine body 100 to facilitate sampling and retrieving sediment from the sampling device; wherein, the sampling mechanism 300 includes several baffles 310 evenly arranged and rotatably connected to the bottom end of the inner wall of the sampling machine body 100, a first electric push rod 320 hinged to one side of the baffle 310, the other end of the first electric push rod 320 hinged to the inner wall of the sampling machine body 100, and a limit component 380 provided on the outer wall of the sampling machine body 100.

[0024] It should be noted that the existing sampling machine body 100 consists of a drill bit, drill rod, sampling tube, piston, and columnar pipe. The handle and extension rod on the top of the sampling machine body 100 can be used to control the handling of the sampling machine body 100. It can also be used with a movable grab bucket to be fixed to a fixed grab bucket via a hinge and connected by a tension spring. The control system and motor provide power and control the operation of the equipment. It is an existing mature instrument. The sampling mechanism 300 and the limiting component 380 are respectively set on the inner bottom wall and outer wall of the sampling machine body 100. The baffle 310 and the first electric push rod 320 are set at the bottom end of the inner wall of the sampling machine body 100 and are connected to it. The inner wall of the sampler body 100 is fitted tightly, ensuring it does not affect sampling. After sampling, it can rotate to one side. Multiple baffles 310 work together to intercept bottom sediment and prevent it from falling. The drain pipe 350 and one-way valve 360 ​​prevent water from remaining in the sampling pipe. The fixing plate 381 and counterweight 384 are located on the top of the sampler body 100, allowing for increased weight as needed. This reduces the impact of water flow on the sampler body 100, preventing tilting and swaying during sampling and ensuring its normal operation.

[0025] like Figure 2 , Figure 3 and Figure 4As shown, the sampling mechanism 300 also includes a second electric push rod 330 installed at the top of the inner wall of the sampling machine body 100. One end of the second electric push rod 330 is fixedly connected to a piston plate 340, which is slidably connected to the inner wall of the sampling machine body 100. A drain pipe 350 is connected to one side of the inner wall of the sampling machine body 100, and a one-way valve 360 ​​is connected to the other end of the drain pipe 350. A filter screen 370 is installed at one end of the drain pipe 350 and the other end of the one-way valve 360. The filter screen 370 is fixedly connected to the inner wall of the sampling machine body 100. During sampling, the second electric push rod 330 drives the piston plate 340 to generate negative pressure, which can improve the sampling effect of the device. One end of the first electric push rod 320 pushes the baffle 310 to rotate upward, intercepting the bottom sediment inside the sampler body 100. When the sampler body 100 moves out of the water, the drain pipe 350 and the one-way valve 360 ​​can discharge the water drawn by the piston plate 340 to the outside of the sampler body 100. The filter screen 370 can prevent the bottom sediment from clogging the drain pipe 350 and the one-way valve 360. The one-way valve 360 ​​can prevent the river water from entering the sampler body 100 through the drain pipe 350. The second electric push rod 330 can squeeze the bottom sediment out of the sampler body 100 through the piston plate 340, which can quickly sample the river bottom sediment and facilitate the removal of the bottom sediment.

[0026] like Figure 4 As shown, the limiting component 380 includes a fixing plate 381 fixedly connected to the outer wall of the sampler body 100. Two threaded rods 382 are fixedly connected to both sides of the top of the fixing plate 381. One end of the threaded rod 382 is threadedly connected to a threaded cap 383. Several evenly arranged counterweights 384 are installed on the top of the fixing plate 381. One end of the threaded rod 382 extends through the outside of the counterweight 384. The counterweights 384 can be installed by the two threaded rods 382 on the fixing plate 381. The counterweights 384 on the fixing plate 381 can be fixed by manually rotating the threaded cap 383 to the threaded connection of the threaded rod 382. This can reduce the impact of water flow on the sampler body 100. The counterweights 384 can be added as needed to prevent them from affecting the rotation of the sampler body 100 and improve the sampling effect of the sampling device.

[0027] In use, when the sampler body 100 enters the river, the weight of the counterweight 384 causes the sampler body 100 to move vertically downwards. The control system drives the motor at the top of the sampler body 100 to rotate, causing the drill rod to rotate and the cutting blade 200 to insert into the bottom mud for sampling. The control system then drives the second electric push rod 330 to move the piston plate 340 upwards, generating negative pressure to adsorb and sample the bottom mud. After sampling, the control system drives the first electric push rod 320 to rotate the baffle 310 upwards, which can intercept the bottom mud. When the sampler body 100 moves out of the water, the drain pipe 350 inside the sampler body 100 cooperates with the one-way valve 360 ​​to discharge water to the outside of the sampler body 100. The first electric push rod 320 then drives the baffle 310 to rotate to the inner wall of the sampler body 100, and the second electric push rod 330 drives the piston plate 340 downwards to squeeze the bottom mud to the outside of the sampler body 100.

[0028] Furthermore, it should be understood that 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, and 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 riverbed sediment sampling device for hydrological and water resource applications, characterized in that, include: The sampling machine body (100) has several evenly distributed cutting blades (200) fixedly connected to its bottom end. The sampling mechanism (300) is located on the inner wall of the main body (100) of the sampling machine, which facilitates the sampling and retrieval of the bottom mud in the sampling device. The sampling mechanism (300) includes several baffles (310) arranged and rotatably connected to the bottom of the inner wall of the sampling machine body (100). A first electric push rod (320) is hinged to one side of the baffle (310), and the other end of the first electric push rod (320) is hinged to the inner wall of the sampling machine body (100). A limit assembly (380) is provided on the outer wall of the sampling machine body (100).

2. The river sediment sampling device for hydrological and water resources according to claim 1, characterized in that: The sampling mechanism (300) further includes a second electric push rod (330) installed on the top of the inner wall of the sampling machine body (100). One end of the second electric push rod (330) is fixedly connected to a piston plate (340), and the piston plate (340) is slidably connected to the inner wall of the sampling machine body (100).

3. A river sediment sampling device for hydrological and water resources purposes according to claim 1, characterized in that: A drain pipe (350) is connected to one side of the inner wall of the sampler body (100), and a one-way valve (360) is connected to the other end of the drain pipe (350).

4. A river sediment sampling device for hydrological and water resources purposes according to claim 3, characterized in that: A filter screen (370) is provided at one end of the drain pipe (350) and at the other end of the one-way valve (360).

5. A river sediment sampling device for hydrological and water resources purposes according to claim 4, characterized in that: The filter (370) is fixedly connected to the inner wall of the sampler body (100).

6. A river sediment sampling device for hydrological and water resources purposes according to claim 1, characterized in that: The limiting component (380) includes a fixing plate (381) fixedly connected to the outer wall of the sampler body (100). Two threaded rods (382) are fixedly connected to both sides of the top of the fixing plate (381). One end of the threaded rod (382) is threadedly connected to a threaded cap (383).

7. A river sediment sampling device for hydrological and water resources purposes according to claim 6, characterized in that: The top of the fixing plate (381) is equipped with several evenly arranged counterweights (384), and one end of the threaded rod (382) extends through to the outside of the counterweights (384).

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