Multi-layer depth sampling device for water environment monitoring

Abstract

The utility model provides a multi-layer depth sampling device for water environment monitoring, which relates to the technical field of water quality sampling, and comprises a plurality of sampling barrels, a sampling column used for being inserted into a water body and a switch valve arranged at a barrel opening of the sampling barrel, a screw rod is rotatably connected in the sampling column, a plurality of clamping blocks are detachably arranged on the sampling column, and the clamping blocks are connected with the screw rod. The clamping block is used for installing the sampling barrel, the clamping block is arranged, the sampling barrel is installed through the clamping block, the clamping block is installed on the sampling column so that the sampling barrel can be installed on the sampling column, and then the clamping block can ascend and descend along the surface of the sampling column through rotation of the screw on the sampling column. Therefore, the sampling barrel on the clamping block can move to different heights on the sampling column.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality sampling, and in particular to a multi-layer depth sampling device for water environment monitoring. Background Technology

[0002] In order to describe the water quality, it is necessary to measure certain parameters of the water at a specified time, place or specific time interval, so it is necessary to collect corresponding water samples. When the composition of the water body changes spatially, it is necessary to sample at each corresponding location, that is, to sample water at different depths.

[0003] Therefore, a multi-layer depth sampling device for water environment monitoring in the prior art, the publication number is: CN217211698U, press the limit column to pull out or retract the adjustment rod to a suitable length, so that the distance between two adjacent sampling barrels reaches a suitable distance, and then fix the mounting frame at a suitable position and on auxiliary objects, put the sampling device into the water environment to be sampled, and then drive the motor to drive the bottom rotating shaft, the middle rotating shaft and the top rotating shaft to rotate, so that the ring rotates to make the auxiliary hole coincide with the water inlet for sampling. After the sampling is completed, the auxiliary hole and the water inlet are staggered when the ring is rotated again, and then the sampling device is taken out.

[0004] However, the applicant has found that the distance between two adjacent sampling barrels is adjusted before the device enters the water body. However, due to the influence of the water body depth and other natural factors, the stratification in water bodies of different depths is different, and the depths of different layers are different. Therefore, when the prior art is used, it is easy for water samples of different depths collected by two adjacent sampling barrels to be in the same layer of water, affecting the final water sample collection results. Contents of utility model

[0005] The purpose of the utility model is to solve the problems existing in the prior art and propose a multi-layer depth sampling device for water environment monitoring.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multi-layer depth sampling device for water environment monitoring, including a plurality of sampling barrels, a sampling column for inserting into the water body, and a switch valve installed at the barrel mouth of the sampling barrel, wherein a screw is rotatably connected in the sampling column, and a plurality of card blocks are detachably installed on the sampling column, and the card block is used to install the sampling barrel, and a slot is provided on the card block, and a card slot slidably connected to the longitudinal part of the sampling column is provided at the open end of the slot, and a rubber pad for embedded thread connection with the screw thread surface is slidably connected to the inner groove wall of the slot, and a connecting frame sleeved on the card block is fixedly connected to the side of the rubber pad, and an electric push rod is connected between the rubber pad and the inner groove wall of the slot.

[0007] Preferably, a motor is fixedly connected to the handle at the top of the sampling column, and the main shaft of the motor passes through the sampling column and is fixedly connected to the top of the screw.

[0008] Preferably, a stopper is inserted into the slot. One side of the stopper is provided with a long arc shape and is slidably connected to the surface of the screw. A long bolt is connected between the stopper and the clamping block.

[0009] Preferably, long bolts are also provided on the opposite inner groove walls of the card slot, and the long bolts in the card slot are slidably connected to the side of the sampling column.

[0010] Preferably, the inner wall of the slot and the surface of the screw are in clearance fit.

[0011] Preferably, a turbidity sensor is fixedly connected to one side of the clamping block.

[0012] Preferably, a bucket seat for supporting the bottom of the sampling bucket is fixedly connected to one side of the clamping block, and a threaded ring threadedly connected to the outer wall of the sampling bucket is fixedly connected to the bucket seat.

[0013] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0014] 1. In the present utility model, by providing a clamping block, the sampling bucket is installed by using the clamping block, and the sampling bucket is installed on the sampling column by installing the clamping block on the sampling column. Then, by rotating the screw on the sampling column, the clamping block can be lifted and lowered along the surface of the sampling column, so as to move the sampling bucket on the clamping block to different heights on the sampling column.

[0015] 2. In the present utility model, by rotating and removing the long bolt, the stopper can be pulled out of the slot. By using the clearance fit between the slot and the screw, the clamping block can be horizontally pulled out of the sampling column. On the contrary, when the stopper is installed in the clamping block and the long bolt is installed on the slot wall of the card slot, by using the card slot and the long bolt inside it, the slot wall of the card slot can be made to fit the longitudinal part of the sampling column, that is, the clamping block can be longitudinally lifted and lowered along the vertical surface of the sampling column. And by using the arc surface of the stopper to fit the surface of the screw, it is ensured that the clamping block is horizontally distributed on the vertical surface of the sampling column. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic three-dimensional structure diagram of a multi-layer depth sampling device for water environment monitoring proposed by the present utility model;

[0017] Figure 2 is a multi-layer depth sampling device for water environment monitoring proposed by the present utility model Figure 1 of a cross-sectional structure diagram;

[0018] Figure 3 is a schematic structure diagram of a clamping block of a multi-layer depth sampling device for water environment monitoring proposed by the present utility model;

[0019] Figure 4 is Figure 3Schematic side view structure diagram.

[0020] Legend: 1. Sampling column; 2. Screw; 3. Motor; 4. Clamping block; 5. Sampling bucket; 6. Slot; 7. Long bolt; 8. Stop block; 9. Card slot; 10. Rubber pad; 11. Connection frame; 12. On-off valve; 13. Threaded ring; 14. Turbidity sensor; 15. Electric push rod; 16. Bucket seat. Detailed implementation mode

[0021] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0022] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0023] As Figures 1-4 shown, a multi-layer depth sampling device for water environment monitoring includes a plurality of sampling buckets 5, and also includes a sampling column 1 for inserting into the water body and an on-off valve 12 installed at the bucket mouth of the sampling bucket 5. The on-off valve 12 is installed at the bucket mouth of the sampling bucket 5. After the sampling bucket 5 descends to the corresponding depth along with the sampling column 1, the on-off valve 12 is electrically opened to allow a part of the water at this depth to enter the sampling bucket 5 to achieve sampling. A screw 2 is rotatably connected inside the sampling column 1, and a motor 3 is fixedly connected to the handle at the top of the sampling column 1. The main shaft of the motor 3 penetrates through the sampling column 1 and is fixedly connected to the top of the screw 2, and the motor 3 is used to drive the screw 2 to rotate:

[0024] A plurality of clamping blocks 4 are detachably installed on the sampling column 1. A stop block 8 is inserted into the slot 6. The inner wall of the slot 6 is in clearance fit with the surface of the screw 2. One side of the stop block 8 is arranged in a long arc shape and is slidably connected to the surface of the screw 2. A long bolt 7 is connected between the stop block 8 and the clamping block 4. The relative inner groove walls of the card slot 9 are also provided with long bolts 7, and the long bolts 7 in the card slot 9 are slidably connected to the side of the sampling column 1. By rotating and removing the long bolt 7, the stop block 8 can be withdrawn from the slot 6, and by using the clearance fit between the slot 6 and the screw 2, the clamping block 4 can be horizontally withdrawn from the sampling column 1. On the contrary, when the stop block 8 is installed in the clamping block 4 and the long bolt 7 is installed on the groove wall of the card slot 9, by using the card slot 9 and the long bolts 7 inside it, the groove wall of the card slot 9 can be made to fit the longitudinal part of the sampling column 1, that is, the clamping block 4 can be longitudinally lifted and lowered along the vertical surface of the sampling column 1. And by using the arc surface of the stop block 8 to fit the surface of the screw 2, it is ensured that the clamping block 4 is horizontally distributed on the vertical surface of the sampling column 1:

[0025] The clamping block 4 is used to install the sampling bucket 5. A slot 6 is opened on the clamping block 4. At the open end of the slot 6, a clamping groove 9 that is slidably connected to the longitudinal part of the sampling column 1 is opened. And a rubber pad 10 that is slidably connected to the inner wall of one side of the slot 6 and is used for internally threaded connection with the thread surface of the screw rod 2 is provided. A connecting frame 11 sleeved on the clamping block 4 is fixedly connected to the side of the rubber pad 10. And an electric push rod 15 is connected between the rubber pad 10 and the inner wall of the slot 6. By using the connecting frame 11, it is ensured that the rubber pad 10 can only move relative to the surface of the screw rod 2 under the telescopic action of the electric push rod 15. When the rubber pad 10 closely adheres to the thread teeth on the surface of the screw rod 2 under the elongation action of the electric push rod 15, the rubber pad 10 is embedded in the thread teeth on the surface of the screw rod 2. That is, at this time, the rubber pad 10 is threadedly connected to the screw rod 2. Therefore, when the screw rod 2 rotates, the clamping block 4 can drive the sampling bucket 5 on its surface to move up and down, that is, the height adjustment is realized. A turbidity sensor 14 is fixedly connected to one side of the clamping block 4. By using the provided turbidity sensor 14, the turbidity of the water body at the depth where the clamping block 4 is located can be detected. By reading the measured values of two adjacent turbidity sensors 14, it can be judged whether two adjacent clamping blocks 4 are located within the water depth range of the same water quality, which is convenient for assisting personnel to adjust the position of the clamping block 4. A bucket seat 16 for supporting the bottom of the sampling bucket 5 is fixedly connected to one side of the clamping block 4. A threaded ring 13 that is threadedly connected to the outer wall of the sampling bucket 5 is fixedly connected to the bucket seat 16. The top edge position of the outer wall of the sampling bucket 5 is threadedly connected to the inner wall of the threaded ring 13. Therefore, it is convenient to install the sampling bucket 5 in the threaded ring 13 by rotating the sampling bucket 5.

[0026] Working principle: Insert the clamping block 4 into the sampling column 1, then install the stop block 8 and the long bolt 7. The motor 3 drives the screw rod 2 to rotate. In the order from bottom to top, the electric push rod 15 in the clamping block 4 extends to push the rubber pad 10 to closely adhere to the thread surface of the screw rod 2. By using the rotation of the screw rod 2, the rubber pad 10 that is threadedly connected to the screw rod 2 drives the corresponding clamping block 4 and the sampling bucket 5 on its surface to descend to a certain depth. The distance between two adjacent clamping blocks 4 is judged according to the data measured by the turbidity sensor 14 for the installation position. Then the on-off valve 12 is opened to realize the collection of water quality samples at the corresponding depth at the mouth of the sampling bucket 5.

[0027] The wiring diagrams of the motor 3, the electric push rod 15, the on-off valve 12, and the turbidity sensor 14 in the present utility model belong to the common knowledge in the art. Their working principles are already known technologies. Their models are selected according to actual use. Therefore, the control methods and wiring arrangements of the motor 3, the electric push rod 15, the on-off valve 12, and the turbidity sensor 14 are not explained in detail.

[0028] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the relevant art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A multi-layer depth sampling device for water environment monitoring, comprising a plurality of sampling barrels (5), characterized in that: The invention also comprises a sampling column (1) for inserting into a water body and a switch valve (12) installed at the barrel mouth of a sampling barrel (5), wherein a screw (2) is rotatably connected inside the sampling column (1), and a plurality of card blocks (4) are detachably installed on the sampling column (1), wherein the card blocks (4) are used to install the sampling barrel (5), and a slot (6) is provided on the card block (4), and a card slot (9) is provided at the open end of the slot (6) for sliding connection with the longitudinal part of the sampling column (1), and a rubber pad (10) for embedded thread connection with the thread surface of the screw (2) is slidably connected to an inner groove wall of the slot (6), and a connecting frame (11) sleeved on the card block (4) is fixedly connected to the side of the rubber pad (10), and an electric push rod (15) is connected between the rubber pad (10) and the inner groove wall of the slot (6).

2. The multi-layer depth sampling device for water environment monitoring according to claim 1 is characterized in that: A motor (3) is fixedly connected to the handle at the top end of the sampling column (1); the main shaft of the motor (3) passes through the sampling column (1) and is fixedly connected to the top end of the screw rod (2).

3. The multi-layer depth sampling device for water environment monitoring according to claim 1 is characterized in that: A stopper (8) is inserted into the slot (6), one side of the stopper (8) is arranged in a long arc shape and is slidably connected to the surface of the screw rod (2), and a long bolt (7) is connected between the stopper (8) and the clamping block (4).

4. The multi-layer depth sampling device for water environment monitoring according to claim 1 is characterized in that: The inner groove wall opposite to the groove (9) is also provided with a long bolt (7), and the long bolt (7) in the groove (9) is slidably connected to the side of the sampling column (1).

5. The multi-layer depth sampling device for water environment monitoring according to claim 1 is characterized in that: The inner wall of the slot (6) is clearance-matched with the surface of the screw rod (2).

6. The multi-layer depth sampling device for water environment monitoring according to claim 1, characterized in that: A turbidity sensor (14) is fixedly connected to one side of the card block (4).

7. The multi-layer depth sampling device for water environment monitoring according to claim 1, characterized in that: A barrel seat (16) for lifting the bottom of the sampling barrel (5) is fixedly connected to one side of the clamping block (4), and a threaded ring (13) threadedly connected to the outer wall of the sampling barrel (5) is fixedly connected to the barrel seat (16).

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