Bottom mud sampler

Abstract

The utility model belongs to the technical field of bottom mud sampling, and particularly discloses a bottom mud sampler which comprises a sampler body, the sampler body is connected with a holding rod, a sampling pulley is arranged on the holding rod, a sampling rope is arranged on the sampling pulley, and the sampling rope is matched with the sampler body through a holding rod concave wheel arranged at the end part of the holding rod; the sampler body comprises a sampling rod rotationally connected with the holding rod, a sampling cavity matched with the sampling rope is formed in the sampling rod, a sampling groove matched with the sampling cavity is formed in the side face of the sampling rod, at least one sampling piece is arranged in the sampling groove, and the sampling piece is matched with a sampling disc arranged on the sampling rod; according to the bottom mud sampler, the holding rod is mounted on the sampler body, sampling treatment of bottom mud in a water body is realized by adopting a fishing rod type structure, the requirement of sampling the water body on the shore is met, and the applicability of the bottom mud sampler is improved; the sampler body adopts a plurality of sampling pieces to perform layered collection on the bottom mud, so that layered sampling of the bottom mud at different depths is realized.

Description

Technical Field

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

[0002] Bottom sediment refers to water body sediment; bottom sediment sampling refers to the bottom sediment samples that need to be collected in order to study the accumulation, distribution, transformation and migration patterns of pollutants discharged into the water body.

[0003] Most existing sediment samplers use grab-type sediment samplers. The grab-type sampler sinks the grab to the bottom of the water. During the sampling and extraction process, under the action of gravity, the two grabs rotate and close around the connecting axis to grab the bottom mud and complete the sampling of the bottom mud. Since the grab relies entirely on gravity to grab the bottom mud after closing, it can only collect the bottom mud on the surface of the bottom of the water. It is impossible to collect bottom mud at different depths according to sampling requirements, and it is difficult to meet the actual sampling requirements of the bottom mud.

[0004] Chinese patent application number CN216645961U discloses a portable shallow-water mud sampler comprising two opposing grab buckets, each of which is rotatably connected to the bottom end of a pull rod. The pull rod is a screw rod with a threaded sleeve threaded onto it. The bottom of the threaded sleeve is rotatably connected to a push ring. The left and right ends of the push ring are rotatably connected to push rods that extend gradually downward. The upper ends of the grab buckets extend outwardly from the push rods, and the push rods are rotatably connected to the action blocks. During use, the pull rods on either side of the threaded sleeves can be rotated to push or pull the grab buckets to close or open for sampling. The overall design is simple, easy to operate, and is designed using purely mechanical methods. It has the characteristics of high sampling efficiency and labor conservation. This utility model uses two grab buckets to sample sediment, but the mud sampler cannot collect sediment of different depths according to sampling requirements, which cannot meet the actual needs of sediment sampling. Utility Model Content

[0005] In order to solve the above problems, a sediment sampler capable of collecting sediments at different depths is provided.

[0006] Based on the above objectives, the present invention is achieved through the following technical solutions:

[0007] The sediment sampler includes a sampler body, which is connected to a holding rod, a sampling pulley is provided on the holding rod, a sampling rope is provided on the sampling pulley, and the sampling rope is matched with the sampler body through a holding rod concave wheel arranged at the end of the holding rod; the sampler body includes a sampling rod rotatably connected to the holding rod, a sampling cavity matched with the sampling rope is provided in the sampling rod, a sampling groove matched with the sampling cavity is provided on the side of the sampling rod, and at least one sampling piece is provided in the sampling groove, and the sampling piece is matched with the sampling disk arranged on the sampling rod.

[0008] Preferably, the sampling member includes a sampling support rod, and two axially symmetrical grab buckets are provided at one end of the sampling support rod away from the sampling rod, and a sampling card hole is horizontally provided at the other end, and the sampling card hole cooperates with the sampling card block provided on the sampling rope.

[0009] Preferably, a grab bar is obliquely provided at the top of the grab bucket, and the grab bars are connected by a connecting shaft. The grab bar is provided with a push rod that cooperates with the grab bar on the adjacent grab bucket, and the push rod is rotatably connected to the grab bar through a movable shaft; the connecting shaft is rotatably connected to the sampling support rod through a connecting bearing; the grab bar is provided with a limit column that cooperates with the sampling rod.

[0010] Preferably, the sampling disc is connected to the sampling rod through a sampling bearing, a sampling motor is provided in the sampling disc to match the sampling rod, a supporting slot is provided on the sampling disc to match the sampling support rod, and a magnet is provided in the supporting slot to match the sampling support rod.

[0011] Preferably, the sampling rod is provided with a sampling ring groove that matches the sampling card hole and the sampling groove; the upper disk surface of the sampling disk is inclined.

[0012] Preferably, a sampling concave wheel matched with the sampling rope is provided at the bottom end of the sampling cavity, and a guide concave wheel matched with the sampling rope is provided at the top end; a press switch is provided in the supporting slot.

[0013] Preferably, a holding groove is provided at the end of the holding rod, and the holding groove cooperates with the sampling protrusion arranged at the end of the sampling rod through a connecting bolt; a retraction axis is provided on the side of the sampling pulley away from the holding rod; a sampling support rod is provided on the holding rod, one end of the sampling support rod is movably connected to the holding rod through a fan ring plate, and the other end is provided with a support seat.

[0014] Preferably, a counterweight is provided on the grab bucket, and a replaceable battery electrically connected to the push rod is provided in the counterweight; and a replaceable battery matched with the sampling motor is provided in the sampling disk.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The utility model installs a holding rod on the sampler body and adopts a fishing rod-type structure to realize sampling and processing of bottom mud in the water body, meets the demand for water sampling on the shore, and improves the applicability of the bottom mud sampler; the sampler body adopts multiple sampling parts to collect the bottom mud in layers, and the bottom mud is sampled at the same position in turn through multiple sampling parts to realize layered sampling of bottom mud at different depths, meet the actual sampling demand of bottom mud, improve the accuracy of bottom mud sampling, and meet the needs of bottom mud research. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the utility model in Example 1;

[0018] Figure 2 is a schematic structural diagram of the gripping rod in Example 1;

[0019] Figure 3 is a schematic structural diagram of the sampling rod in Example 1;

[0020] Figure 4 is a schematic structural diagram of the sampling component in Example 1;

[0021] Figure 5 This is a schematic diagram of the structure of the sampling card block in Example 1.

[0022] In the figure, the sampling pulley 1, the holding rod 2, the sampling rope 3, the holding rod concave wheel 4, the sampling rod 5, the sampling disk 6, the sampling bearing 7, the sampling part 8, the sampling ring groove 9, the supporting card groove 10, the sampling groove 11, the sampling cavity 12, the guide concave wheel 13, the counterweight block 14, the grab bucket 15, the push rod 16, the grab rod 17, the connecting shaft 18, the sampling support rod 19, the sampling card hole 20, and the sampling card block 21. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below through specific embodiments, but the scope of the present invention is not limited thereto.

[0024] Example 1

[0025] The sediment sampler has the following structure: Figure 1-5 As shown, the sampler body includes a sampler body connected to a holding rod 2, a sampling pulley 1 is provided on the holding rod 2, a sampling rope 3 is provided on the sampling pulley 1, and the sampling rope 3 is matched with the sampler body through a holding rod concave wheel 4 arranged at the end of the holding rod 2; the sampler body includes a sampling rod 5 rotatably connected to the holding rod 2, a sampling cavity 12 matched with the sampling rope 3 is provided in the sampling rod 5, a sampling groove 11 matched with the sampling cavity 12 is provided on the side of the sampling rod 5, and at least one sampling piece 8 is provided in the sampling groove 11, and the sampling piece 8 is matched with the sampling disk 6 arranged on the sampling rod 5.

[0026] The sampling member 8 includes a sampling support rod 19. The sampling support rod 19 is provided with two axially symmetrical grab buckets 15 at one end away from the sampling rod 5, and a sampling card hole 20 at the other end. The sampling card hole 20 cooperates with a sampling card block 21 provided on the sampling rope 3. Grab bars 17 are provided at an angle at the top of the grab buckets 15. The grab bars 17 are connected to each other by a connecting shaft 18. The grab bars 17 are provided with push rods 16 that cooperate with the grab bars 17 on adjacent grab buckets 15. The push rods 16 are rotatably connected to the grab bars 17; the connecting shaft 18 is rotatably connected to the sampling support rod 19.

[0027] The sampling disk 6 is connected to the sampling rod 5 through a sampling bearing 7. A sampling motor that matches the sampling rod 5 is provided in the sampling disk 6. A supporting slot 10 that matches the sampling support rod 19 is provided on the sampling disk 6.

[0028] The sampling rod 5 is provided with a sampling ring groove 9 that mates with the sampling card hole 20 and the sampling slot 11. The upper surface of the sampling disk 6 is tilted. The bottom of the sampling chamber 12 is provided with a sampling concave wheel that mates with the sampling rope 3, and the top is provided with a guide concave wheel 13 that mates with the sampling rope 3. The grab bucket 15 is provided with a counterweight 14.

[0029] This sediment sampler can add or reduce sampling parts 8 according to the actual needs of sediment sampling to achieve layered sampling of sediments at different depths; the sampling card block 21 is distributed on the sampling rope 3 inside the sampling groove 11, and the sampling card block 21 moves with the sampling rope 3 in the sampling cavity 12. The sampling concave wheel at the bottom end of the sampling cavity 12 will not affect the movement of the sampling card block 21 with the sampling rope 3 in the sampling cavity 12.

[0030] When in use, use the pulley clamping shaft to clamp the sampling pulley 1 on the holding rod 2, and then hang an appropriate number of sampling pieces 8 on the sampling card block 21 along the sampling groove 11 through the sampling card hole 20 as needed. Operate the holding rod 2 with both hands, put the sampler body into the water body, and sink to the bottom of the water under the action of the gravity of the sampler body. The bottom end of the sampling rod 5 contacts the bottom of the water. At this time, the sampling pieces 8 do not contact the bottom of the water. Pull out the pulley clamping shaft, rotate the sampling pulley 1, and drive the sampling rope 3 to move along the guide concave wheel 13, the sampling concave wheel, the holding rod concave wheel 4, and the sampling pulley 1.

[0031] The sampling rope 3 drives the sampling piece 8 outside the sampling groove 11 to move downward. Under the action of the counterweight 14, the sampling pulley 1 is controlled to control the rotation speed and the descending speed of the sampling piece 8, so as to facilitate the collection of bottom mud at different depths according to sampling needs. The sampling pulley 1 is continued to rotate, and the sampling card hole 20 on the sampling support rod 19 of the bottom sampling piece 8 is separated from the sampling card block 21 on the sampling rope 3. The sampling support rod 19 enters the sampling ring groove 9 along the sampling groove 11 and is stuck in the support card groove 10. The bottom sampling piece 8 contacts the bottom mud of the water body, controls the sampling switch of the sampling piece 8 on the holding rod 2, and the push rod 16 contracts, driving the grab bars 17 on the two grab buckets 15 to approach each other along the connecting shaft 18, closing the two grab buckets 15 of the sampling piece 8 to grab the first layer of bottom mud.

[0032] Then control the rotary switch on the holding rod 2, and the sampling motor drives the sampling disk 6 to rotate a certain angle along the sampling bearing 7, so that the adjacent supporting slots 10 correspond to the sampling slots 11. At the same time, the sampling disk 6 drives the bottom sampling piece 8 that has completed sampling to move to one side, making room for the sampling position, making it convenient for the upper sampling piece 8 to continue sampling the same sampling position again, thereby realizing stratified sampling of bottom mud at different depths at the sampling position and meeting the needs of bottom mud sampling.

[0033] After the sampling is completed, the sampling motor is controlled to reverse a certain angle by rotating the switch, the sampling disk 6 drives the sampling piece 8 to reverse, the end of the sampling support rod 19 moves along the sampling ring groove 9 to the sampling groove 11, and then the sampling pulley 1 is rotated in the opposite direction. The above actions are repeated, which can drive each sampling piece 8 to rise and drain in turn, and then take out the bottom mud sampler to complete the sampling process of different depths of the water body bottom mud; during the sampling process, as the sampling depth increases, the holding rod 2 is pulled to tilt the sampling rod 5, which facilitates the sampling piece 8 to collect deeper bottom mud.

[0034] Example 2

[0035] The difference between the bottom sediment sampler and embodiment 1 is that a sampling support rod 19 is provided on the holding rod 2, one end of the sampling support rod 19 is movably connected to the holding rod 2 through a fan ring plate, and the other end is provided with a support seat.

[0036] Example 3

[0037] The difference between the bottom sediment sampler and the embodiment 1 is that two sampling pieces 8 are provided in the sampling tank 11 .

[0038] Example 4

[0039] The difference between the bottom sediment sampler and the embodiment 1 is that three sampling members 8 are provided in the sampling tank 11 .

[0040] Example 5

[0041] The difference between the sediment sampler and the embodiment 1 is that more than four sampling members 8 are provided in the sampling tank 11 .

[0042] Example 6

[0043] The difference between the sediment sampler and embodiment 1 is that the bottom end of the sampling rod 5 is in an inverted cone shape.

[0044] The above description is only a preferred embodiment of the present invention, but is not limited to the above examples. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sediment sampler, comprising a sampler body, characterized in that: The sampler body is connected to a holding rod, a sampling pulley is provided on the holding rod, a sampling rope is provided on the sampling pulley, and the sampling rope cooperates with the sampler body through a holding rod concave wheel arranged at the end of the holding rod; the sampler body includes a sampling rod rotatably connected to the holding rod, a sampling cavity cooperating with the sampling rope is provided in the sampling rod, a sampling groove cooperating with the sampling cavity is provided on the side of the sampling rod, and at least one sampling piece is provided in the sampling groove, and the sampling piece cooperates with the sampling disk arranged on the sampling rod.

2. The sediment sampler according to claim 1, characterized in that: The sampling piece includes a sampling support rod. One end of the sampling support rod away from the sampling rod is provided with two axially symmetrical grab buckets, and the other end is provided with a sampling card hole. The sampling card hole cooperates with the sampling card block arranged on the sampling rope.

3. The sediment sampler according to claim 2, characterized in that: A grab bar is obliquely provided at the top of the grab bucket, and the grab bars are connected by a connecting shaft. A push rod is provided on the grab bar to match the grab bar on the adjacent grab bucket, and the push rod is rotatably connected to the grab bar; the connecting shaft is rotatably connected to the sampling support rod.

4. The sediment sampler according to claim 3, characterized in that: The sampling disc is connected to the sampling rod through a sampling bearing. A sampling motor matched with the sampling rod is provided in the sampling disc. A supporting slot matched with the sampling support rod is provided on the sampling disc.

5. The sediment sampler according to claim 4, characterized in that: The sampling rod is provided with a sampling ring groove which matches the sampling card hole and the sampling groove; the upper disk surface of the sampling disk is arranged tilted.

6. The sediment sampler according to claim 5, characterized in that: The bottom end of the sampling cavity is provided with a sampling concave wheel matched with the sampling rope, and the top end is provided with a guide concave wheel matched with the sampling rope.

7. The sediment sampler according to claim 6, characterized in that: A counterweight is provided on the grab bucket.

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