Water sample stratified sampling device

Abstract

The utility model relates to the technical field of water sampling, and discloses a water sample stratified sampling device which comprises a hanging bracket, a mounting column is fixedly mounted on the bottom side of the middle of the hanging bracket, and a stratified sampling mechanism is fixedly mounted on the outer side of the mounting column; the stratified sampling mechanism comprises four groups of sampling barrels which are distributed at equal intervals and mounted on the outer side of the mounting column, and brackets are fixedly mounted on the top sides of the interiors of the four groups of sampling barrels. According to the layered sampling device, an operator places the hanging bracket in lake water needing to be sampled and pulls the pull rope upwards, so that the sealing cover in the layered sampling mechanism is separated from the port of the sampling barrel, the lake water at the specified depth is automatically collected into the sampling barrel, and the operator can loosen the pull rope which is pulled upwards after the sampling time is thirty seconds; the sealing cover can be automatically closed at the end opening of the sampling barrel due to the pulling force of the spring connected with the outer wall of the piston rod in a sleeving mode, sampling water after sampling is prevented from leaking out of the sampling barrel, and therefore an operator can conduct layered sampling on lake water with different depths through the operation.

Description

Technical Field

[0001] The utility model relates to the technical field of water sampling, in particular to a water sample layered sampling device. Background Technique

[0002] At present, water is the source of life. Humans are inseparable from water in their life and production activities. The quality of domestic drinking water is closely related to human health. With the development of social economy, scientific progress and the improvement of people's living standards, people's requirements for the quality of domestic drinking water are constantly increasing, and the drinking water quality standards are also constantly developing and improving accordingly.

[0003] Among them, since the formulation of domestic drinking water quality standards is related to various factors such as people's living habits, culture, economic conditions, scientific and technological development levels, water resources and their water quality status, there are differences in the requirements for drinking water quality not only between countries, but also between different regions of the same country. In order to ensure water quality safety, the lake water will be sampled regularly.

[0004] Most of the sampling devices on the market still sample by throwing the sampling bucket into the lake water and waiting for the lake water to fill up to complete the sampling. Such a sampling method is relatively single. It is not only difficult to control the depth of the sampling bucket, but also difficult to store the water samples at different depths separately. For this reason, we propose a water sample layered sampling device to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problems existing in the prior art and propose a water sample layered sampling device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The water sample layered sampling device includes: a hanging frame, an installation column is fixedly installed on the bottom side of the middle part of the hanging frame, and a layered sampling mechanism is fixedly installed on the outer side of the installation column;

[0008] The layered sampling mechanism includes four groups of sampling cylinders installed at equal intervals on the outer side of the installation column, brackets fixedly installed on the top sides of the four groups of sampling cylinders, limit rings fixedly installed in the middle of the four groups of brackets, piston rods movably installed in the four groups of limit rings, covers fixedly installed on the tops of the four groups of piston rods, and springs sleeved on the outer walls of the four groups of piston rods.

[0009] Preferably, the four groups of covers respectively fit with the tops of the four groups of sampling cylinders, and both sides of each group of springs are respectively connected with the limit ring and the side wall of the cover.

[0010] Preferably, a lifting ring is fixedly installed in the middle of the top of the hanger, a lifting rope is fixedly installed on the lifting ring, and scale lines are engraved on the lifting rope, which is convenient for the operator to position the hanger.

[0011] Preferably, pull ropes are fixedly installed on the tops of the four caps, and different pigments are coated on the outer walls of the four pull ropes, which is convenient for the operator to distinguish different sampling cylinders.

[0012] Preferably, mounting pieces are fixedly installed at the top and bottom of the mounting column, four positioning rings are fixedly installed on the outer walls of the two mounting pieces at equal intervals, and two corresponding positioning rings are fixedly installed on the side wall of one of the sampling cylinders, so that the four sampling cylinders can be fixed.

[0013] Preferably, four flow guiding grooves are arranged on the hanger at equal intervals, the four flow guiding grooves are respectively movably connected with the four pull ropes, pulleys are fixedly installed on both sides inside the four flow guiding grooves, and two adjacent pulleys are movably connected with the side walls of the corresponding pull ropes, which can guide the pull ropes.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] In the present utility model, the operator places the hanger in the lake water to be sampled, and pulls up the pull rope, so that the cap in the layered sampling mechanism is separated from the port of the sampling cylinder, and the lake water at the specified depth is automatically collected into the sampling cylinder. After waiting for 30 seconds of sampling time, the operator can loosen the pulled-up pull rope, and the cap will automatically close at the port of the sampling cylinder due to the tension of the spring sleeved on the outer wall of the piston rod, avoiding the sampled water from leaking out of the sampling cylinder after sampling. By this operation, the operator can perform layered sampling of lake water at different depths.

[0016] Since four flow guiding grooves are arranged on the hanger at equal intervals, and pulleys are fixedly installed on both sides inside the four flow guiding grooves, when the operator loosens the pull rope connected to the cap, the cap will automatically reset due to the tension of the spring, and simultaneously pull the pull rope down. At the same time, with the pulleys installed on both sides inside the flow guiding grooves, the two sides of the pull rope can be efficiently supported and guided, avoiding the pull rope from getting stuck in the flow guiding grooves and preventing the cap from resetting to the port of the sampling cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the main structure of the water sample layered sampling device proposed by the present utility model;

[0018] Figure 2 is a schematic diagram of the distribution structure of the sampling cylinders of the water sample layered sampling device proposed by the present utility model;

[0019] Figure 3 is a partial enlarged schematic diagram at A of the water sample layered sampling device proposed by the present utility model.

[0020] In the figure: 1. Hanging bracket; 11. Suspension ring; 12. Suspension rope; 13. Mounting column; 2. Sampling cylinder; 21. Bracket; 22. Limit ring; 23. Piston rod; 24. Sealing cover; 25. Spring; 26. Pulling rope; 3. Mounting part; 31. Positioning ring; 32. Flow guiding groove; 33. Pulley. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] Refer to Figures 1-3 , the water sample layered sampling device includes: a hanging bracket 1, a mounting column 13 is fixedly installed on the bottom side of the middle part of the hanging bracket 1, and a layered sampling mechanism is fixedly installed on the outside of the mounting column 13;

[0023] The layered sampling mechanism includes four groups of equally spaced sampling cylinders 2 installed on the outside of the mounting column 13, brackets 21 fixedly installed on the top sides inside the four groups of sampling cylinders 2, limit rings 22 fixedly installed in the middle of the four groups of brackets 21, piston rods 23 movably installed in the four groups of limit rings 22, sealing covers 24 fixedly installed on the tops of the four groups of piston rods 23, and springs 25 sleeved on the outer walls of the four groups of piston rods 23. The four groups of sealing covers 24 respectively fit with the tops of the four groups of sampling cylinders 2. Both sides of each group of springs 25 are connected to the side walls of the limit ring 22 and the sealing cover 24. By the operator placing the hanging bracket 1 in the lake where sampling is required and pulling up the pulling rope 26, the sealing cover 24 in the layered sampling mechanism is separated from the port of the sampling cylinder 2, automatically collecting the lake water at a specified depth into the sampling cylinder 2. After waiting for 30 seconds of sampling time, the operator can release the pulled-up pulling rope 26, and the sealing cover 24 will automatically close at the port of the sampling cylinder 2 due to the pulling force of the spring 25 sleeved on the outer wall of the piston rod 23, avoiding the sampled water from leaking out of the sampling cylinder 2 after sampling. By this operation, the operator can perform layered sampling of lake water at different depths.

[0024] Furthermore, four groups of equally spaced flow guiding grooves 32 are opened on the hanging bracket 1. The four groups of flow guiding grooves 32 are respectively movably connected with the four groups of pulling ropes 26. Pulleys 33 are fixedly installed on both sides inside the four groups of flow guiding grooves 32. Adjacent two groups of pulleys 33 are respectively movably connected with the side walls of the corresponding pulling ropes 26. When the operator releases the pulling rope 26 connected to the sealing cover 24, the sealing cover 24 will automatically reset due to the pulling force of the spring 25 and simultaneously pull the pulling rope 26 down. At the same time, with the pulleys 33 installed on both sides inside the flow guiding groove 32, it can efficiently support and guide both sides of the pulling rope 26, avoiding the pulling rope 26 from getting stuck in the flow guiding groove 32 and preventing the sealing cover 24 from resetting to the port of the sampling cylinder 2.

[0025] Furthermore, a lifting ring 11 is fixedly installed in the middle of the top of the hanger 1. A lifting rope 12 is fixedly installed on the lifting ring 11, and scale lines are engraved on the lifting rope 12. When the operator holds the lifting rope 12 installed on the lifting ring 11 and places the hanger 1 in the lake where sampling is required, after waiting for the hanger 1 to automatically sink into the lake, with the cooperation of the scale lines on the lifting rope 12, the hanger 1 can be accurately controlled to sink to the designated position.

[0026] Furthermore, pull ropes 26 are fixedly installed on the tops of the four sets of covers 24, and different pigments are coated on the outer walls of the four pull ropes 26. When the operator pulls up the pull rope 26 to introduce lake water into the sampling cylinder 2, conversely, when the operator pulls up other pull ropes 26, with the pull ropes 26 with different pigments, the operator can more accurately distinguish different sampling cylinders 2.

[0027] Furthermore, installation parts 3 are fixedly installed at the top and bottom of the installation column 13. Four equally spaced positioning rings 31 are fixedly installed on the outer walls of the two installation parts 3. Two mutually corresponding positioning rings 31 are fixedly installed on the side wall of one of the sampling cylinders 2. The four sampling cylinders 2 are respectively installed in two mutually corresponding positioning rings 31, so that the four sampling cylinders 2 can be evenly installed on the outside of the installation column 13 to sample lake water at different depths.

[0028] During use, first, the operator holds the lifting rope 12 installed on the lifting ring 11 and places the hanger 1 in the lake where sampling is required. After waiting for the hanger 1 to automatically sink into the lake, with the cooperation of the scale lines on the lifting rope 12, the hanger 1 can be accurately controlled to sink to the designated position. At the same time, the pull rope 26 is pulled up to separate the cover 24 in the layered sampling mechanism from the port of the sampling cylinder 2, and the lake water at the designated depth is automatically collected into the sampling cylinder 2. After waiting for 30 seconds of sampling time, the operator can release the pulled-up pull rope 26. The cover 24 will automatically close at the port of the sampling cylinder 2 due to the tension of the spring 25 sleeved on the outer wall of the piston rod 23, avoiding the sampled water from leaking out of the sampling cylinder 2 after sampling. By this operation, the operator can perform layered sampling of lake water at different depths. At the same time, four equally spaced diversion grooves 32 are provided on the hanger 1, and pulleys 33 are fixedly installed on both sides inside the four diversion grooves 32. When the operator releases the pull rope 26 connected to the cover 24, the cover 24 will automatically reset due to the tension of the spring 25 and simultaneously pull the pull rope 26 down. At the same time, with the cooperation of the pulleys 33 installed on both sides inside the diversion grooves 32, the two sides of the pull rope 26 can be efficiently supported and diverted, avoiding the pull rope 26 from getting stuck in the diversion grooves 32 and preventing the cover 24 from resetting to the port of the sampling cylinder 2.

[0029] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. Water sample stratified sampling device, characterized in that, Including: A hanger (1), an installation column (13) is fixedly installed on the bottom side of the middle of the hanger (1), and a layered sampling mechanism is fixedly installed on the outer side of the installation column (13); The layered sampling mechanism includes four sampling cylinders (2) installed at equal intervals on the outer side of the installation column (13), brackets (21) fixedly installed on the top sides inside the four sampling cylinders (2), limiting rings (22) fixedly installed in the middle of the four brackets (21), piston rods (23) movably installed in the four limiting rings (22), covers (24) fixedly installed on the tops of the four piston rods (23), and springs (25) sleeved on the outer walls of the four piston rods (23).

2. The water sample stratified sampling device according to claim 1, wherein The four covers (24) respectively fit with the tops of the four sampling cylinders (2), and both sides of each spring (25) are connected to the side walls of the limiting ring (22) and the cover (24).

3. The water sample stratification sampling device according to claim 1, wherein, A lifting ring (11) is fixedly installed in the middle of the top of the hanger (1), a lifting rope (12) is fixedly installed on the lifting ring (11), and scale lines are engraved on the lifting rope (12).

4. The water sample layered sampling device according to claim 1, characterized in that, Pulling ropes (26) are fixedly installed on the tops of the four covers (24), and different pigments are coated on the outer walls of the four pulling ropes (26).

5. The water sample stratification sampling device according to claim 1, characterized in that Installation parts (3) are fixedly installed at the top and bottom of the installation column (13), four positioning rings (31) are fixedly installed on the outer walls of the two installation parts (3) at equal intervals, and the two corresponding positioning rings (31) are fixedly installed with the side wall of one of the sampling cylinders (2).

6. The water sample layered sampling device according to claim 1, characterized in that, Four diversion grooves (32) are formed at equal intervals on the hanger (1), the four diversion grooves (32) are respectively movably connected with the four pulling ropes (26), pulleys (33) are fixedly installed on both sides inside the four diversion grooves (32), and the adjacent two pulleys (33) are movably connected with the side wall of the corresponding pulling rope (26).

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