CN118500817A - A portable sampling device for marine environment investigation - Google Patents

Abstract

The invention discloses a portable sampling device for marine environment investigation, comprising a support plate, a water pumping assembly is arranged on the support plate, a plurality of water sampling assemblies are arranged on the support plate, a connecting frame is arranged on the upper end of the support plate, and a hook is arranged on the upper end of the connecting frame; the water sampling assembly comprises a support tube, a cover body, a water sampling bottle, a first piston, a water inlet pipe and a water outlet pipe, the lower end of the support tube is arranged on the support plate, the water sampling bottle is arranged in the support tube, the first piston is arranged in the water sampling bottle, the water inlet pipe is connected to the water sampling bottle, a first through hole is arranged on the support plate, the water inlet pipe is inserted in the first through hole, the cover body is arranged on the support tube, the cover body is provided with a second through hole, the water sampling bottle is connected to the water outlet pipe, the water outlet pipe passes through the second through hole and is connected to the water pumping assembly. The water sampling bottle in the invention injects pure water into the upper end of the first piston through the water pumping assembly, when reaching the specified depth, the first solenoid valve is opened, the water pumping assembly pumps seawater into the water sampling bottle and discharges the pure water, and the use of counterweights is reduced during the sinking process.

Description

A portable sampling device for marine environment investigation

Technical Field

The invention relates to the technical field of sampling equipment, in particular to a portable sampling device for marine environment investigation.

Background Art

The marine environment refers to the total water area of the vast and continuous seas and oceans on the earth, including seawater, substances dissolved and suspended in seawater, seabed sediments and marine life. It is the cradle of life and a treasure trove of human resources. Marine environmental surveys are the sentinels and eyes and ears of marine environmental protection, one of the most important bases for assessing the state of the marine environment, and can also serve as an early warning for marine disasters.

At present, the most important sampling is the sampling of seawater, especially the sampling of seawater at different depths at the same location. The key to sampling is to obtain representative samples from the marine environment and take all precautions to avoid changes in the time interval between sampling and analysis. It is the first key link in marine environmental investigation and monitoring.

When the existing water sampler is in use, a water sampling cavity is left. When the specified depth is reached, the opening is opened for sampling. Since the water sampling cavity is hollow, a counterweight is required to allow the water sampler to sink when it sinks. If the water sampling cavity is large or there are many water sampling cavities, more counterweights are required, causing the water sampler to be too bulky and inconvenient to use.

Summary of the invention

The purpose of the present invention is to provide a portable sampling device for marine environment investigation. By filling the water sampling component with pure water, the whole device can be easily sunk, and then the seawater is pumped in and the pure water is discharged through the pumping component, thereby solving the problem that the water sampler is too heavy and inconvenient to use due to too many counterweights.

The above technical objectives of the present invention are achieved through the following technical solutions:

A portable sampling device for marine environment investigation, comprising a support plate, a water pumping assembly is provided in the middle of the upper end of the support plate, a plurality of water sampling assemblies are evenly installed on the surrounding side of the water pumping assembly, a connecting frame is provided at the upper end of the support plate, and a hook is provided at the upper end of the connecting frame;

The water sampling assembly includes a support tube, a cover body, a water sampling bottle, a first piston, a water inlet pipe and a water outlet pipe. The lower end of the support tube is arranged on the support plate, and the upper end of the support tube is in an open state. The water sampling bottle is arranged in the support tube, and the first piston is arranged in the water sampling bottle. The first piston can slide up and down, and the water inlet pipe is vertically connected to the lower end of the water sampling bottle. A first through hole connected to the support tube is provided on the support plate, and the lower end of the water inlet pipe is inserted into the first through hole. The cover body can be opened and covered on the upper open end of the support tube. A second through hole is provided on the cover body, and the upper end of the water sampling bottle is connected to the water outlet pipe. The upper end of the water outlet pipe passes through the second through hole and can be detachably connected to the water pumping assembly.

The present invention is further configured as follows: the water collection bottle is made of a transparent material, the water collection bottle comprises a bottle body and a bottle cap, and the bottle cap is detachably connected to the bottle body.

The present invention is further configured as follows: a first solenoid valve matching the water sampling assembly is disposed at the lower end of the support plate, and the first solenoid valve is detachably connected to the water outlet pipe.

The present invention is further configured as follows: the water pumping component includes a shell, a control center, a water pump, a connecting pipe, a second solenoid valve and a connecting hose, the shell is arranged on a support plate, the control center and the water pump are both arranged in the shell, one end of the connecting pipe is connected to the water pump, the connecting hose and the second solenoid valve are each provided with multiple, one end of the connecting hose is detachably connected to the upper end of the water outlet pipe, the end of the connecting hose away from the water outlet pipe is connected to the connecting pipe, the second solenoid valves are arranged one by one on the connecting pipe, and the first solenoid valve, the water pump and the second solenoid valve are all electrically connected to the control center.

The present invention is further configured as follows: the pumping assembly also includes a telescopic motor, a temporary water storage cylinder, a second piston, a third solenoid valve, a fourth solenoid valve, a first drain pipe and a second drain pipe, the telescopic motor and the temporary water storage cylinder are both arranged in the shell, one end of the temporary water storage cylinder is in a sealed state, the second piston is arranged in the temporary water storage cylinder, the second piston is slidably matched with the temporary water storage cylinder, the second piston and the temporary water storage cylinder form a temporary water storage chamber, the output shaft of the telescopic motor is inserted into the temporary water storage cylinder and connected to the second piston, one end of the first drain pipe is connected to the water pump, the other end of the first drain pipe is connected to the upper end of the temporary water storage chamber, the third solenoid valve is arranged on the first drain pipe, one end of the second drain pipe is connected to the upper end of the temporary water storage chamber, the other end of the second drain pipe is connected to the outside of the shell, the fourth solenoid valve is arranged on the second drain pipe, and the telescopic motor, the third solenoid valve and the fourth solenoid valve are all electrically connected to the control center.

The present invention is further configured as follows: the lower end of the temporary water storage cylinder is in an open state, the lower end of the temporary water storage cylinder passes through the support plate, the telescopic motor is arranged at the upper end of the temporary water storage cylinder, and the output shaft of the telescopic motor is inserted into the temporary water storage cavity from the upper end of the telescopic temporary water storage cylinder and connected to the second piston.

The present invention is further configured as follows: a detachable cover at the lower end of the support plate is provided with a base, and a plurality of filter holes are provided at the lower end and the peripheral side of the base.

The present invention is further configured as follows: the connecting frame includes a plurality of support rods and a truncated cone, the truncated cone is arranged above the shell, a plurality of support rods are evenly connected to the circumference of the truncated cone, one end of the support rod away from the truncated cone is connected to the upper end of the support plate, and the hook is arranged at the upper end of the truncated cone.

The present invention is further configured as follows: a counterweight is provided at the lower end of the support plate.

In summary, the present invention has the following beneficial effects:

First, the water collection bottle in the present invention can inject pure water into the upper end of the first piston through the pumping assembly. When the specified depth is reached, the first solenoid valve opens, and the pumping assembly pumps seawater into the water collection bottle and discharges the pure water. The use of counterweights is reduced during the sinking process, making it lighter and more convenient to use.

Secondly, the present invention is provided with a plurality of water sampling components, which can sample different depths at the same location to avoid repeated operations.

Third, after the seawater is taken out, the first solenoid valve of the water sampling bottle in the present invention is disassembled, the water sampling bottle is taken out from the supporting tube, and the water inlet pipe and the water outlet pipe are sealed, and then stored, so as to reduce the contact with the outside air and environment, avoid interference and affect the authenticity and validity of the water environment represented by the analysis results of the collected water samples.

Fourthly, the water pumping component of the present invention not only pumps pure water into the water extraction and sampling bottle to complete the seawater collection, but also discharges the extracted pure water into a temporary water storage cylinder. After the seawater collection is completed, the pure water is discharged into the seawater, avoiding the mode of pumping seawater and discharging pure water at the same time, which will cause the surrounding seawater to be polluted by pure water and affect the accuracy of detection.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the present invention.

In the figure: 1. support plate; 11. first through hole; 2. pumping assembly; 21. shell; 22. control center; 23. water pump; 24. connecting pipe; 25. second solenoid valve; 26. connecting hose; 27. telescopic motor; 28. temporary water storage cylinder; 29. second piston; 210. third solenoid valve; 211. fourth solenoid valve; 212. first drain pipe; 213. second drain pipe; 214. temporary water storage chamber; 3. water collection assembly; 31. support cylinder; 32. cover body; 33. water collection bottle; 331. bottle body; 332. bottle cover; 34. first piston; 35. water inlet pipe; 36. water outlet pipe; 37. second through hole; 38. first solenoid valve; 4. connecting frame; 41. support rod; 42. round table; 5. hook; 6. base; 61. filter hole; 7. counterweight.

DETAILED DESCRIPTION

The present invention is further described in detail below in conjunction with the accompanying drawings.

In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Embodiment, a portable sampling device for marine environment investigation, as shown in Figures 1 and 2, includes a support plate 1, a water pumping assembly 2 is provided in the middle of the upper end of the support plate 1, a plurality of water sampling assemblies 3 are evenly installed on the surrounding side of the water pumping assembly 2 of the support plate 1, a connecting frame 4 is provided at the upper end of the support plate 1, and a hook 5 is provided at the upper end of the connecting frame 4. The hook 5 is convenient for fixing the cable to lower the device.

The water sampling assembly 3 includes a support tube 31, a cover body 32, a water sampling bottle 33, a first piston 34, a water inlet pipe 35 and a water outlet pipe 36. The lower end of the support tube 31 is arranged on the support plate 1, and the upper end of the support tube 31 is in an open state. The water sampling bottle 33 is arranged in the support tube 31, wherein the water sampling bottle 33 is made of a transparent material for convenient viewing of the state of seawater. The water sampling bottle 33 includes a bottle body 331 and a bottle cap 332, and the bottle cap 332 is detachably connected to the bottle body 331, so that it can be easily disassembled and washed. The first piston 34 is disposed in the water collection bottle 33, and the first piston 34 can slide up and down. The water inlet pipe 35 is vertically connected to the lower end of the water collection bottle 33. The support plate 1 is provided with a first through hole 11 connected to the support cylinder 31. The lower end of the water inlet pipe 35 is inserted into the first through hole 11. The cover body 32 can be opened and covered on the upper open end of the support cylinder 31. The cover body 32 is provided with a second through hole 37. The upper end of the water collection bottle 33 is connected to the water outlet pipe 36. The upper end of the water outlet pipe 36 passes through the second through hole 37 and can be detachably connected to the pumping assembly 2. When in use, by installing the water collection bottle 33 in the support cylinder 31, covering the cover body 32, connecting the water outlet pipe 36 to the pumping assembly 2, and then injecting pure water into the water collection bottle 33, the first piston 34 is pushed to the lower end of the water collection bottle 33. After collecting the seawater, take the water sampling bottle 33 out of the support tube 31, and then seal the upper end of the water outlet pipe 36 and the lower end of the water inlet pipe 35 to store the water sampling bottle 33 to reduce the contamination and loss of the sample. Of course, after a certain water depth, excessive water pressure will compress the first piston 34, causing a portion of seawater that does not belong to the target depth to be stored in the water sampling bottle 33, affecting the detection results, so it can only be used when the sampling depth is not deep. If it is to be used at a deep depth, a first solenoid valve 38 matching the water sampling component 3 is provided at the lower end of the support plate 1, and the first solenoid valve 38 is detachably connected to the water inlet pipe 35. After reaching the target depth, the first solenoid valve 38 can be opened to work.

The pumping assembly 2 includes a housing 21, a control center 22, a water pump 23, a connecting pipe 24, a second solenoid valve 25 and a connecting hose 26. The housing 21 is arranged on the support plate 1, the control center 22 and the water pump 23 are both arranged in the housing 21, one end of the connecting pipe 24 is connected to the water pump 23, and a plurality of connecting hoses 26 and second solenoid valves 25 are provided. One end of the connecting hose 26 is detachably connected to the upper end of the water outlet pipe 36, and one end of the connecting hose 26 away from the water outlet pipe 36 is connected to the connecting pipe 24. The second solenoid valves 25 are arranged one by one on the connecting pipe 24, and the first solenoid valve 38, the water pump 23 and the second solenoid valve 25 are all electrically connected to the control center 22. Pure water can be first injected into each water sampling bottle 33 through the water pump 23, and the pure water is extracted from the water sampling bottle 33 after reaching the target depth, and the first piston 34 moves up to extract seawater into the water sampling bottle 33. The control center 22 controls the various electronic components to work together. Of course, the control center 22 needs to form a signal connection with the sea surface, which can be a wired connection or a wireless connection, which can be selected according to needs. A necessary depth gauge is also provided.

The pumping assembly 2 also includes a telescopic motor 27, a temporary water storage cylinder 28, a second piston 29, a third solenoid valve 210, a fourth solenoid valve 211, a first drain pipe 212 and a second drain pipe 213. The telescopic motor 27 and the temporary water storage cylinder 28 are both arranged in the housing 21, one end of the temporary water storage cylinder 28 is in a sealed state, the second piston 29 is arranged in the temporary water storage cylinder 28, the second piston 29 is slidably matched with the temporary water storage cylinder 28, and the second piston 29 and the temporary water storage cylinder 28 form a temporary water storage chamber 214. The output shaft of the telescopic motor 27 is inserted into the temporary water storage cylinder 28 and connected to the second piston 29, one end of the first drainage pipe 212 is connected to the water pump 23, the other end of the first drainage pipe 212 is connected to the upper end of the temporary water storage chamber 214, the third electromagnetic valve 210 is arranged on the first drainage pipe 212, one end of the second drainage pipe 213 is connected to the upper end of the temporary water storage chamber 214, the other end of the second drainage pipe 213 is connected to the outside of the housing 21, the fourth electromagnetic valve 211 is arranged on the second drainage pipe 213, and the telescopic motor 27, the third electromagnetic valve 210 and the fourth electromagnetic valve 211 are all electrically connected to the control center 22. In order to avoid the operation of pumping seawater and discharging pure water at the same time affecting the concentration of each component in the seawater, resulting in deviation in the detection result, the water drawn out of the water collection bottle 33 can be first stored in the temporary water storage cylinder 28, and the water in the temporary water storage cylinder 28 can be discharged after the collection is completed.

The lower end of the temporary water storage cylinder 28 is in an open state, and the lower end of the temporary water storage cylinder 28 passes through the support plate 1. The telescopic motor 27 is arranged at the upper end of the temporary water storage cylinder 28. The output shaft of the telescopic motor 27 is inserted into the temporary water storage cavity 214 from the upper end of the telescopic temporary water storage cylinder 28 and connected to the second piston 29. The lower end of the temporary water storage cylinder 28 is connected to the outside to avoid the formation of a closed space. However, since the temporary water storage cylinder 28 is often exposed to seawater, it needs to be cleaned and maintained in time.

Of course, the pumping component 2 can also be a mechanism like a syringe, but it is easy to produce a cavity during operation, affecting the buoyancy or diving of the device. The present device solves this problem through a water pump 23 and a temporary water storage cylinder 28. The temporary water storage cylinder 28 avoids the generation of cavities and does not require high sealing, so the effect is better.

The lower end of the support plate 1 is detachably covered with a base 6, and the lower end and the surrounding side of the base 6 are provided with a plurality of filter holes 61. The base 6 is used to prevent oversized garbage from blocking the water inlet pipe 35 and affecting the operation of the device, and the base 6 is detachable to facilitate the installation and removal of the first solenoid valve 38 on the water sampling bottle 33.

The connecting frame 4 includes a plurality of supporting rods 41 and a truncated cone 42. The truncated cone 42 is disposed above the housing 21. The plurality of supporting rods 41 are evenly connected to the circumference of the truncated cone 42. One end of the supporting rod 41 away from the truncated cone 42 is connected to the upper end of the supporting plate 1. The hook 5 is disposed at the upper end of the truncated cone 42. A counterweight block 7 is disposed at the lower end of the supporting plate 1.

Instructions for use: 1. Preparation stage: remove the base 6 of the device, install the water collection bottle 33 after it is off the ground, or directly install the pure water collection bottle, then install the first solenoid valve 38 on the water inlet pipe 35, then install the cover 32 and the connecting hose 26, and finally install the base 6. 2. Collection stage: slowly place the device into the seawater, and when it reaches the specified depth, perform the collection operation. After collecting one point, discharge the pure water, and then dive or float to another point for collection. 3. Finishing stage: after the collection is completed, remove the base 6 of the device, then remove the first solenoid valve 38, take out the water collection bottle 33, seal the water inlet pipe 35 and the water outlet pipe 36, and replace the new water collection bottle 33 after preservation.

This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims (9)

1. A portable sampling device for marine environment investigation, characterized in that: it comprises a support plate (1), a water pumping assembly (2) is provided at the middle of the upper end of the support plate (1), a plurality of water sampling assemblies (3) are evenly installed on the peripheral side of the water pumping assembly (2) of the support plate (1), a connecting frame (4) is provided at the upper end of the support plate (1), and a hook (5) is provided at the upper end of the connecting frame (4); The water sampling assembly (3) comprises a support tube (31), a cover body (32), a water sampling bottle (33), a first piston (34), a water inlet pipe (35) and a water outlet pipe (36); the lower end of the support tube (31) is arranged on the support plate (1); the upper end of the support tube (31) is in an open state; the water sampling bottle (33) is arranged in the support tube (31); the first piston (34) is arranged in the water sampling bottle (33); the first piston (34) can slide up and down; the water inlet pipe (35) is vertically connected to the water sampling bottle (33); 3), the support plate (1) is provided with a first through hole (11) connected to the support tube (31), the lower end of the water inlet pipe (35) is inserted into the first through hole (11), the cover body (32) is openably provided on the upper open end of the support tube (31), the cover body (32) is provided with a second through hole (37), the upper end of the water collection bottle (33) is connected to the water outlet pipe (36), the upper end of the water outlet pipe (36) passes through the second through hole (37) and is detachably connected to the water pumping assembly (2). 2. A portable sampling device for marine environment investigation according to claim 1, characterized in that: the water sampling bottle (33) is made of transparent material, the water sampling bottle (33) comprises a bottle body (331) and a bottle cap (332), and the bottle cap (332) is detachably connected to the bottle body (331). 3. A portable sampling device for marine environment investigation according to claim 2, characterized in that: a first solenoid valve (38) matching the water sampling component (3) is provided at the lower end of the support plate (1), and the first solenoid valve (38) is detachably connected to the water inlet pipe (35). 4. A portable sampling device for marine environment investigation according to claim 3, characterized in that: the pumping assembly (2) comprises a housing (21), a control center (22), a water pump (23), a connecting pipe (24), a second solenoid valve (25) and a connecting hose (26), the housing (21) is arranged on the support plate (1), the control center (22) and the water pump (23) are both arranged in the housing (21), one end of the connecting pipe (24) is connected to the water pump (23), The connecting hose (26) and the second solenoid valve (25) are both provided in plurality. One end of the connecting hose (26) is detachably connected to the upper end of the water outlet pipe (36). The end of the connecting hose (26) away from the water outlet pipe (36) is connected to the connecting pipe (24). The second solenoid valves (25) are respectively provided on the connecting pipe (24). The first solenoid valve (38), the water pump (23) and the second solenoid valve (25) are all electrically connected to the control center (22). 5. A portable sampling device for marine environment investigation according to claim 4, characterized in that: the pumping assembly (2) also includes a telescopic motor (27), a temporary water storage cylinder (28), a second piston (29), a third solenoid valve (210), a fourth solenoid valve (211), a first drain pipe (212) and a second drain pipe (213), the telescopic motor (27) and the temporary water storage cylinder (28) are both arranged in the shell (21), one end of the temporary water storage cylinder (28) is in a sealed state, the second piston (29) is arranged in the temporary water storage cylinder (28), the second piston (29) is slidably matched with the temporary water storage cylinder (28), the second piston (29) and the temporary water storage cylinder (28) form a temporary water storage chamber (214), the telescopic motor (2 The output shaft of the first drain pipe (212) is inserted into the temporary water storage cylinder (28) and connected to the second piston (29); one end of the first drain pipe (212) is connected to the water pump (23); the other end of the first drain pipe (212) is connected to the upper end of the temporary water storage chamber (214); the third solenoid valve (210) is arranged on the first drain pipe (212); one end of the second drain pipe (213) is connected to the upper end of the temporary water storage chamber (214); the other end of the second drain pipe (213) is connected to the outside of the shell (21); the fourth solenoid valve (211) is arranged on the second drain pipe (213); the telescopic motor (27), the third solenoid valve (210) and the fourth solenoid valve (211) are all electrically connected to the control center (22). 6. A portable sampling device for marine environment investigation according to claim 5, characterized in that: the lower end of the temporary water storage cylinder (28) is in an open state, the lower end of the temporary water storage cylinder (28) passes through the support plate (1), the telescopic motor (27) is arranged at the upper end of the temporary water storage cylinder (28), and the output shaft of the telescopic motor (27) is inserted into the temporary water storage chamber (214) from the upper end of the telescopic temporary water storage cylinder (28) and connected to the second piston (29). 7. A portable sampling device for marine environment investigation according to claim 6, characterized in that: the lower end of the support plate (1) is detachably covered with a base (6), and the lower end and surrounding side of the base (6) are provided with a plurality of filter holes (61). 8. A portable sampling device for marine environment investigation according to claim 7, characterized in that: the connecting frame (4) includes a plurality of support rods (41) and a truncated cone (42), the truncated cone (42) is arranged above the shell (21), and a plurality of support rods (41) are evenly connected to the circumference of the truncated cone (42), one end of the support rod (41) away from the truncated cone (42) is connected to the upper end of the support plate (1), and the hook (5) is arranged at the upper end of the truncated cone (42). 9. A portable sampling device for marine environment investigation according to claim 8, characterized in that a counterweight block (7) is provided at the lower end of the support plate (1).