Surface water stratified sampling device

Abstract

The utility model relates to the field of sampling devices, and discloses a surface water stratified sampling device which comprises a shell, a pulling assembly is arranged in the middle of the shell, a plurality of sampling mechanisms are arranged between the pulling assembly and the shell, a pull rope is arranged on the upper portion of the pulling assembly, and the pulling rope is connected with the pulling assembly. The end, away from the pulling assembly, of the pull rope is movably connected with a buoy, holding rods are arranged on the left side and the right side of the top of the shell, the pulling assembly comprises a first pull rod, a second pull rod is arranged on the upper portion of the first pull rod, and studs are fixedly connected to the tops of the first pull rod and the second pull rod. A limiting block is arranged on the upper portion of the second pull rod. According to the sampling device, the shell is matched with the pulling assembly and the sampling mechanisms, the fixing assembly is matched with the shell, the connecting assembly is matched with the fixing assembly, and the extracting assembly is matched with the pulling assembly, so that the device can adjust the position distance between the sampling mechanisms, and the sampling device is more practical.

Description

TECHNICAL FIELD

[0001] The utility model relates to sampling device field especially relates to a surface water layered sampling device. BACKGROUND

[0002] Surface water refers to the water body existing directly on the earth's surface, including rivers, lakes, oceans, reservoirs and the like, and these water bodies are important components of water cycle and have important influence on ecological system, climate regulation and human activities, and the quality and quantity of surface water are influenced by precipitation, evaporation, soil penetration, artificial distribution and the like, and the surface water layered sampling device is a kind of equipment for collecting surface water samples at different depths, and is suitable for water quality monitoring, environmental research and ecological investigation and the like fields.

[0003] Through the search, Chinese patent publication No. CN218994823U discloses a layered liquid taking device for detecting heavy metal content of surface water, comprising: a fixed rod; a movable rod arranged on the fixed rod; a plurality of water absorption mechanisms arranged on the side wall of the fixed rod; the water absorption mechanism cooperates with the movable rod; wherein the movable rod is axially lifted along the fixed rod; wherein a plurality of water absorption mechanisms are linearly arrayed along the axial direction of the fixed rod; the utility model has the beneficial effects that: when sampling surface water, the fixed rod is vertically placed in the water, so that the plurality of water absorption mechanisms are in contact with the surface water, and the movable rod is lifted to drive the plurality of water absorption mechanisms to sample, since the water absorption mechanisms are linearly arrayed along the axial direction of the fixed rod, different position heights in the surface water can be conveniently sampled to realize layered sampling, and when analyzing the metal content of the surface water in the later period, the data can be ensured to be more accurate.

[0004] Although the above-mentioned device can sample surface water at different position heights by setting a plurality of water absorption mechanisms, the position of the fixed cylinder sleeve is relatively fixed, so that the device can only sample surface water at a specific distance, which is not practical enough, therefore, a surface water layered sampling device is proposed to solve the above-mentioned problems. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a surface water layered sampling device, which aims to improve the problem that although the prior art can sample surface water at different position heights by setting a plurality of water absorption mechanisms, the position of the fixed cylinder sleeve is relatively fixed, so that the device can only sample surface water at a specific distance, which is not practical enough.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a surface water layered sampling device, including the shell, the middle part of shell is provided with pull component, pull component and shell are commonly provided with sampling mechanism and the number is multiple between them, the upper portion of pull component is provided with pull rope, the end of pull rope is away from pull component and is swinged to be connected with the float, the top left and right sides of shell are provided with the handle bar, pull component includes the pull rod no.

[0007] As a further description of the above technical scheme:

[0008] The bottom of the first pull rod is provided with a limiting groove.

[0009] As a further description of the above technical scheme:

[0010] The shell includes a bottom shell, the upper portion of the bottom shell is provided with a connecting shell, the top of the connecting shell is provided with a limiting ring, the upper portion of the left and right sides of the bottom shell and the upper and lower portions of the left and right sides of the connecting shell and the left and right sides of the limiting ring are all fixedly connected with fixing plates, the fixing plates are fixed through bolts, and the front sides of the bottom shell and the connecting shell are all provided with sliding openings.

[0011] As a further description of the above technical scheme:

[0012] The inner wall bottom of the bottom shell is fixedly connected with a limiting column, and the limiting column is swingedly connected with the limiting groove.

[0013] As a further description of the above technical scheme:

[0014] The bottom of the bottom shell is provided with a plurality of water leakage openings.

[0015] As a further description of the above technical scheme:

[0016] The sampling mechanism includes a fixing assembly, a sampling pipe, a connecting assembly and a pumping assembly, the fixing assembly includes a fixing strip, the fixing strip is annular, both ends of the fixing strip are fixedly connected with fixing blocks, and the two fixing blocks are fixed through bolts; the front side of the fixing strip is fixedly connected with a fixing ring, and the sampling pipe is fixedly connected therewith.

[0017] As a further description of the above technical scheme:

[0018] The connecting assembly comprises a connecting strip, which is annular, and two connecting blocks fixedly connected to two ends of the connecting strip, and an installation block fixedly connected to the front end of the connecting block.

[0019] As a further description of the above technical solution:

[0020] The extraction assembly comprises an installation plate arranged between the two connecting blocks, a fixed rod fixedly connected to the front portion of the installation plate, and a piston fixedly connected to the lower portion of the fixed rod and in sliding connection with the inner wall of the sampling tube.

[0021] The utility model has the advantages of the following beneficial effects:

[0022] 1. In the utility model, the mutual cooperation between the shell, the pulling assembly and the sampling mechanism is set, the mutual cooperation between the fixed assembly, the shell, the connecting assembly, the extraction assembly and the pulling assembly is set, the position interval between the sampling mechanisms can be adjusted, and the device is more practical.

[0023] 2. In the utility model, the mutual cooperation between the bottom shell, the connecting shell, the limiting ring and the fixed plate is set, the mutual cooperation between the first pull rod and the second pull rod is set, the length of the device can be adjusted according to actual requirements, and the device is more practical. DRAWINGS

[0024] Figure 1 The utility model provides a kind of overall three-dimensional structure schematic diagram of surface water layered sampling device;

[0025] Figure 2 The utility model provides a kind of split three-dimensional structure schematic diagram of surface water layered sampling device;

[0026] Figure 3 The utility model provides a kind of shell split three-dimensional structure schematic diagram of surface water layered sampling device;

[0027] Figure 4 The utility model provides a kind of pulling mechanism split three-dimensional structure schematic diagram of surface water layered sampling device;

[0028] Figure 5 The utility model provides a kind of local section three-dimensional structure schematic diagram of surface water layered sampling device;

[0029] Figure 6 The utility model provides a kind of sampling mechanism overall three-dimensional structure schematic diagram of surface water layered sampling device;

[0030] Figure 7 The utility model provides a kind of sampling mechanism split three-dimensional structure schematic diagram of surface water layered sampling device.

[0031] Legend:

[0032] 1. Outer shell; 2. Pulling assembly; 3. Sampling mechanism; 4. Handle; 5. Pull rope; 6. Float; 21. Pull rod No. 1; 22. Pull rod No. 2; 23. Limiting block; 24. Connecting ring; 25. Stud; 26. Limiting groove; 11. Bottom shell; 12. Connecting shell; 13. Limiting ring; 14. Sliding port; 15. Fixing plate; 16. Limiting post; 17. Leakage outlet; 31. Fixing assembly; 32. Sampling tube; 33. Connecting assembly; 34. Extraction assembly; 311. Fixing strip; 312. Fixing ring; 313. Fixing block; 331. Connecting strip; 332. Connecting block; 333. Mounting block; 341. Mounting plate; 342. Fixing rod; 343. Piston. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0034] Reference Figure 1 - Figure 2 This utility model provides an embodiment of a surface water stratification sampling device, including a housing 1 for connecting various components. A pulling component 2 is provided in the middle of the housing 1 for controlling the use of a sampling mechanism 3. Multiple sampling mechanisms 3 are provided together between the pulling component 2 and the housing 1 for stratified sampling of surface water. A pull rope 5 is provided on the upper part of the pulling component 2, which can be manually pulled by the user without being connected to a float 6 to control the pulling component 2. The end of the pull rope 5 away from the pulling component 2 is movably connected to a float 6, which can float on the water surface. Through the buoyancy of the water and the relative force of the device moving downward, the float 6 can be used to control the pulling component 2 through the pull rope 5. A handle 4 is provided on the top left and right sides of the housing 1 for the user to hold and move the device underwater. The handle 4 can be changed to the required length according to actual needs. It is threadedly connected to the fixing plates 15 on both sides of the limiting ring 13 and the fixing plates 15 on the top left and right sides of the connecting shell 12 at the top.

[0035] like Figure 3 - Figure 5As shown, the pulling assembly 2 comprises a first pull rod 21 for connecting with the shell 1, the upper portion of the first pull rod 21 is provided with a second pull rod 22 for matching connection with each component, according to actual needs, a plurality of second pull rods 22 can be connected together to change the length of the pulling assembly 2, the top of the first pull rod 21 and the second pull rod 22 is fixedly connected with a threaded stud 25 for matching the fixing between the first pull rod 21 and the second pull rod 22 or between the first pull rod 21 and two second pull rods 22, the upper portion of the second pull rod 22 is provided with a limiting block 23 which is threadedly connected with the threaded stud 25 on the second pull rod 22, the top of the limiting block 23 is fixedly connected with a connecting ring 24 for matching the connection between the pulling rope 5 and the pulling assembly 2, the pulling rope 5 is movably connected therewith, the bottom of the second pull rod 22 is threadedly connected with the threaded stud 25 on the upper portion of the first pull rod 21, which can also be connected with the threaded stud 25 on another second pull rod 22, no matter how many second pull rods 22 are used, the pulling assembly 2 only needs one first pull rod 21, and the first pull rod 21 must be located at the lowermost position of the pulling assembly 2, the bottom of the first pull rod 21 is provided with a limiting groove 26 which is matched with the limiting column 16 to match the connection between the pulling assembly 2 and the shell 1.

[0036] Further, the shell 1 comprises a bottom shell 11 for matching connection with each component, the number of which is one, the upper portion of the bottom shell 11 is provided with a connecting shell 12 which can be added according to actual use needs, the top of the connecting shell 12 is provided with a limiting ring 13 which is connected with the top of the uppermost connecting shell 12, the middle portion of which is opened to match the pulling assembly 2, the left and right sides of the upper portion of the bottom shell 11 and the left and right sides of the upper and lower portions of the connecting shell 12 and the left and right sides of the limiting ring 13 are fixedly connected with a fixed plate 15 for matching the connection between the bottom shell 11 and the connecting shell 12 or between the bottom shell 11 and two connecting shells 12 or between the connecting shell 12 and the limiting ring 13, the fixed plates 15 are fixed by bolts, the front sides of the bottom shell 11 and the connecting shell 12 are provided with a sliding port 14 for matching the use of the sampling mechanism 3, the inner wall of the bottom shell 11 is fixedly connected with a limiting column 16 which is made of rubber and can be deformed, a cavity is formed in the inside of the limiting column 16 to match the connection and separation between the pulling assembly 2 and the shell 1, the limiting column 16 is movably connected with the limiting groove 26, and the bottom of the bottom shell 11 is provided with a plurality of water leakage ports 17 to match the water discharge in the shell 1.

[0037] Please refer to Figure 6 - Figure 7The sampling mechanism 3 comprises a fixing assembly 31, a sampling pipe 32, a connecting assembly 33 and a drawing assembly 34. The fixing assembly 31 comprises a fixing strip 311 which is annular and movably connected with the shell 1 and used for connecting and fixing the sampling mechanism 3 with the shell 1. The two ends of the fixing strip 311 are fixedly connected with fixing blocks 313 which are used for disassembling and assembling the fixing strip 311. The two fixing blocks 313 are fixed by bolts. The front side of the fixing strip 311 is fixedly connected with a fixing ring 312 which is used for connecting the sampling pipe 32. The sampling pipe 32 is fixedly connected with the fixing ring 312. The lower part of the sampling pipe 32 is provided with a sampling port for facilitating sampling. The connecting assembly 33 comprises a connecting strip 331 which is annular and used for connecting the sampling mechanism 3 with the pulling assembly 2. The two ends of the connecting strip 331 are fixedly connected with connecting blocks 332 which are used for disassembling and assembling the connecting strip 331. The connecting blocks 332 slide in the sliding ports 14. The front end of the connecting blocks 332 is fixedly connected with mounting blocks 333 which are used for mounting the drawing assembly 34. The drawing assembly 34 comprises mounting plates 341 which are arranged between the two mounting blocks 333 and fixed by bolts. The front part of the mounting plates 341 is fixedly connected with fixing rods 342 which are used for fixing pistons 343. The lower part of the fixing rods 342 is fixedly connected with the pistons 343 which are used for cooperating with the sampling pipe 32 to draw the surface water sample. The pistons 343 are slidably connected with the inner wall of the sampling pipe 32.

[0038] Working principle: when in use, the user holds the two handle rods 4 and sends the device into water. When the device is lowered to a proper position, the user can pull the pulling rope 5 to drive the pulling assembly 2 to move upward. Alternatively, the user can fix the float 6 on the pulling rope 5 in advance. When the device is lowered to a proper position, the float 6 pulls the pulling rope 5 to drive the pulling assembly 2 to move upward. The connecting assembly 33 connected with the pulling assembly 2 is driven to move upward together, thereby driving the fixing rods 342 to pull the pistons 343 upward, so as to draw the water sample in the sampling pipe 32. After sampling, the user can pull the device upward by the handle rods 4 and then draw out the device. Then the user can press the pulling assembly 2 downward to drive the pistons 343 to move downward, so as to squeeze the water sample in the sampling pipe 32 out of the sampling pipe 32.

[0039] When the position of the sampling mechanism 3 needs to be adjusted, first, the fixed strip 311 is sleeved on the shell 1, then the integral fixed assembly 31 is moved, the fixed assembly 31 drives the sampling tube 32 to be adjusted to the appropriate position, then the two fixed blocks 313 are fixed by bolts, so that the fixed strip 311 is fixed on the shell 1, then the connecting assembly 33 is sleeved on the pulling assembly 2, the piston 343 on the extraction assembly 34 is inserted into the sampling tube 32, and the piston 343 is pressed down, the air in the sampling tube 32 is completely discharged, the connecting assembly 33 is adjusted to the appropriate position, the mounting plate 341 can be clamped between the two mounting blocks 333 of the connecting assembly 33, then the mounting blocks 333 and the mounting plate 341 are fixed by bolts, so that the connecting strip 331 is completely fixed on the pulling assembly 2.

[0040] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A device for stratified sampling of surface water, comprising a housing (1), characterized in that: The middle part of the shell (1) is provided with a pulling assembly (2), the pulling assembly (2) and the shell (1) are provided with a sampling mechanism (3) and the number is multiple, the upper part of the pulling assembly (2) is provided with a pull rope (5), the end of the pull rope (5) away from the pulling assembly (2) is movably connected with a float (6), the top left and right sides of the shell (1) are provided with a handle (4), the pulling assembly (2) comprises a first pull rod (21), the upper part of the first pull rod (21) is provided with a second pull rod (22), the top of the first pull rod (21) and the second pull rod (22) is fixedly connected with a threaded stud (25), the upper part of the second pull rod (22) is provided with a limiting block (23), the limiting block (23) is threadedly connected with the threaded stud (25) on the second pull rod (22), the top of the limiting block (23) is fixedly connected with a connecting ring (24), the pull rope (5) is movably connected with the connecting ring (24), the bottom of the second pull rod (22) is threadedly connected with the threaded stud (25) on the upper part of the first pull rod (21).

2. A stratified sampling device for surface water according to claim 1, characterised in that: The bottom of the first pull rod (21) is provided with a limiting groove (26).

3. A stratified sampling device for surface water according to claim 2, wherein: The shell (1) comprises a bottom shell (11), the upper part of the bottom shell (11) is provided with a connecting shell (12), the top of the connecting shell (12) is provided with a limiting ring (13), the upper left and right sides of the bottom shell (11) and the upper and lower left and right sides of the connecting shell (12) and the left and right sides of the limiting ring (13) are fixedly connected with a fixed plate (15), the fixed plates (15) are fixed by bolts, the front sides of the bottom shell (11) and the connecting shell (12) are provided with a sliding port (14).

4. A stratified sampling device for surface water according to claim 3, wherein: The inner wall of the bottom shell (11) is fixedly connected with a limiting column (16), the limiting column (16) is movably connected with the limiting groove (26).

5. A stratified sampling device for surface water according to claim 3, wherein: The bottom of the bottom shell (11) is provided with a plurality of water leakage ports (17).

6. A stratified sampling device for surface water according to claim 1, characterized in that: The sampling mechanism (3) comprises a fixed assembly (31), a sampling pipe (32), a connecting assembly (33) and a drawing assembly (34), the fixed assembly (31) comprises a fixed strip (311), the fixed strip (311) is annular, both ends of the fixed strip (311) are fixedly connected with a fixed block (313), the two fixed blocks (313) are fixed by bolts, the front side of the fixed strip (311) is fixedly connected with a fixed ring (312), and the sampling pipe (32) is fixedly connected with the fixed ring (312).

7. A stratified sampling device for surface water according to claim 6, characterised in that: The connecting assembly (33) comprises a connecting strip (331), the connecting strip (331) is annular, both ends of the connecting strip (331) are fixedly connected with a connecting block (332), and the front end of the connecting block (332) is fixedly connected with a mounting block (333).

8. A stratified sampling device for surface water according to claim 6, characterised in that: The drawing assembly (34) comprises a mounting plate (341), the mounting plate (341) is arranged between the two connecting blocks (332), the front part of the mounting plate (341) is fixedly connected with a fixed rod (342), the lower part of the fixed rod (342) is fixedly connected with a piston (343), and the piston (343) is slidably connected with the inner wall of the sampling pipe (32).

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