Automatic sampling system for water quality monitoring

Abstract

The invention relates to the field of water quality sampling, in particular to an automatic sampling system for water quality monitoring, which comprises a chamber capable of suspending a counterweight and a water inlet located at the bottom of the chamber, a stirring assembly for stirring a soil layer is arranged at the bottom of the chamber, and driving assemblies for pushing the stirring assembly are arranged on two sides of the chamber. A cavity is formed in the upper layer of the riverbed, a storage bag which can be extruded by gas and is communicated with the water inlet is arranged in the cavity, a one-way valve used for discharging liquid in the storage bag is arranged outside the cavity, and the bevel gear is pushed to rotate by utilizing impact force generated during water inflow while a water body on the upper layer of the riverbed is collected through the driving assembly, so that the bevel gear ring and the cutter head are further driven to rotate; the sediment on the riverbed is stirred, the water body and the sediment are rapidly absorbed through the empty storage bag, stirring of the sediment on the riverbed can be completed without the help of any high-power electrical equipment, more energy is saved, and meanwhile collection of the water body on the upper layer of the riverbed is completed.

Description

Technical Field

[0001] The present invention relates to the field of water quality sampling, and in particular to an automated sampling system for water quality monitoring. Background Art

[0002] The main purpose of water quality sampling is to understand the current pollution situation of the water body. Sampling is divided into surface layer, middle layer or bottom layer of the water surface. For deep water areas, automatic sampling can also be carried out by diving to a certain depth. After sampling, it is sent to the laboratory for testing. However, although some water bodies have experienced pollution before, they have not been tested. With the disappearance of the pollution source, the water sampling results seem to be pollution-free, but some pollution still enters the riverbed or lakebed with the sedimentation of the water, resulting in incomplete investigation of the pollution situation of lakes or rivers. The bottom of the river is generally entrenched with a large amount of sediment, and the sampling process is very difficult. A large amount of equipment needs to be used to collect water in the sediment, such as using a submersible robot to drill the sediment in the riverbed to complete the sampling, and the sampling content needs to be reasonably controlled, otherwise there will be great resistance when rising and pulling after the sampling is completed.

[0003] Therefore, those skilled in the art have designed an automated sampling system for water quality monitoring to solve the above problems. Summary of the Invention

[0004] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide an automated sampling system for water quality monitoring.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: it includes a chamber on which a counterweight can be hung and a water inlet located at the bottom of the chamber, a stirring component for stirring the soil layer is provided at the bottom of the chamber, driving components for pushing the stirring component are provided on both sides of the chamber, a storage bag that can be squeezed by gas and connected to the water inlet is provided in the chamber, and a one-way valve for discharging the liquid in the storage bag is provided outside the chamber.

[0006] Preferably, the water inlet includes a conical tube and a water inlet tube 1. The conical tube is conical and recessed into the chamber. The top of the conical tube is connected to the water inlet tube 1. A solenoid valve is provided in the water inlet tube 1 and is connected to the storage bag.

[0007] Preferably, the driving assembly includes a bevel gear and a water inlet assembly, the bevel gear forms a one-way rotation connection with the chamber, and the bevel gear forms a driving connection with the water inlet assembly.

[0008] Preferably, the water inlet assembly includes a sealed impeller, a second water inlet pipe and a water storage chamber. The bevel gear is connected to the sealed impeller through a connecting shaft. The sealed impeller is located inside the water storage chamber, and the second water inlet pipe is located at the top of the water storage chamber.

[0009] Preferably, the second water inlet pipe is located above the sealed impeller, and the sealed impeller divides the inner space of the water storage chamber into at least three equal parts.

[0010] Preferably, the stirring assembly includes a bevel gear ring and an agitator, and the bevel gear ring and the bevel gear are meshedly connected with each other.

[0011] Preferably, the agitator includes a fitting plate and a cutter disc, the bottom of the chamber is slidably connected to the cutter disc by providing an annular groove, and the fitting plate is tightly fitted above the annular groove at the bottom of the chamber.

[0012] Preferably, an inflation tube is connected to the outside of the chamber and communicates with the inner wall of the chamber, and the inflation tube is located around the storage bag, and a gasket is provided on the outer circle of the bottom of the chamber.

[0013] The beneficial effects of the present invention are as follows: the driving assembly collects water from the upper layer of the riverbed while utilizing the impact force generated by the incoming water to drive the bevel gear to rotate, thereby further driving the bevel gear ring and the cutter disc to rotate, stirring the sediment on the riverbed, and utilizing the empty storage bag to quickly absorb the water and sediment. The stirring of the riverbed sediment can be completed without the aid of any high-power electrical equipment, which is more energy-efficient and also completes the collection of water from the upper layer of the riverbed. In addition, an inflation tube is used to flush in high-pressure gas, which not only fills the chamber with a large amount of gas that can float, making it convenient for the equipment to be pulled upward, but also squeezes the storage bag to squeeze out excess mud and water. Because most of the liquid that first enters the storage bag is water on the surface of the riverbed, and the subsequent liquid that enters is water in the mud and sand, the collected data is more accurate and can truly reflect the data of the mud and sand in the riverbed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0015] Figure 1 It is a main structural schematic diagram of the present invention.

[0016] Figure 2 It is a main structural schematic diagram of the present invention.

[0017] Figure 3 It is a schematic diagram of the present invention in a bent state.

[0018] Figure 4 It is a side structural schematic diagram of the present invention.

[0019] Figure 5 The present invention Figure 2Schematic diagram of the partially enlarged structure.

[0020] In the picture: 1. Chamber; 2. Water inlet; 201. Conical tube; 202. Water inlet pipe 1; 3. Agitation assembly; 301. Bevel gear ring; 302. Laminating plate; 303. Cutter disc; 4. Drive assembly; 401. Bevel gear; 402. Sealing impeller; 403. Water inlet pipe 2; 5. Gasket; 6. Storage bag; 7. Inflation tube. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0022] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0023] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside" and the like indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0024] In the description of the present invention, unless otherwise expressly specified or limited, when the term "connection" or the like appears to indicate a connection relationship between components, such term 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two components or an interaction between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood in specific circumstances.

[0025] Example 1: The present invention provides an automated sampling system for water quality monitoring, such as Figure 1-5As shown, it includes a chamber 1 on which a counterweight can be hung and a water inlet 2 at the bottom of the chamber 1, a stirring component 3 for stirring the soil layer is provided at the bottom of the chamber 1, and driving components 4 for pushing the stirring component 3 are provided on both sides of the chamber 1. A storage bag 6 that can be squeezed by gas and is connected to the water inlet 2 is provided in the chamber 1, and a one-way valve for discharging the liquid in the storage bag 6 is provided outside the chamber 1. The stirring component 3 is used to stir the sediment at the bottom of the riverbed, so that the storage bag 6 can quickly absorb the stirred sediment and the water in the sediment, thereby quickly sampling the sediment and water at the bottom of the riverbed.

[0026] The water inlet 2 includes a conical tube 201 and a water inlet pipe 202. The conical tube 201 is conical and concave into the chamber 1. The concave structure allows the stirred sediment to only stay on the inside of the conical tube 201, ensuring that most of the collected water resources come from the sediment. The top of the conical tube 201 is connected to the water inlet pipe 202. An electromagnetic valve is provided in the water inlet pipe 202 and is connected to the storage bag 6. The electromagnetic valve can control the opening and closing of the water inlet pipe 202. After opening, water can automatically flow in under the action of water pressure.

[0027] The driving assembly 4 includes a bevel gear 401 and a water inlet assembly. The bevel gear 401 forms a one-way rotation connection with the chamber 1, and the bevel gear 401 forms a driving connection with the water inlet assembly. The bevel gear 401 can rotate one-way under the push of the water inlet assembly.

[0028] The water inlet assembly includes a sealed impeller 402, a second water inlet pipe 403 and a water storage chamber. The bevel gear 401 is connected to the sealed impeller 402 through a connecting shaft. The sealed impeller 402 is located inside the water storage chamber, and the second water inlet pipe 403 is located at the top of the water storage chamber. The sealed impeller 402 has at least three equally distributed blades. The two adjacent blades and the inside of the water storage chamber together constitute an independent sealed space, which drives the sealed impeller 402 to rotate under the push of the gravity of the water flow.

[0029] The second water inlet pipe 403 is located above the sealed impeller 402. By being arranged above, water is first introduced into the upper space, thereby achieving the function of driving the sealed impeller 402 to rotate. The sealed impeller 402 divides the inner space of the water storage chamber into at least three equal parts.

[0030] The stirring assembly 3 includes a bevel gear ring 301 and a stirrer. The bevel gear ring 301 and the bevel gear 401 are meshed with each other. The bevel gear 401 and the cutter disc 303 at the bottom are driven by the induction after the surrounding water flow is sucked in to stir the soil layer below the riverbed. Rapid sampling can be achieved without the need for high-energy-consuming electrical equipment, and the water flowing in from the side can also be used as one of the samples for water quality detection above the riverbed.

[0031] The agitator includes a bonding plate 302 and a blade disc 303. The bottom of the chamber 1 is slidably connected to the blade disc 303 by opening an annular groove. The bonding plate 302 is tightly fitted above the annular groove at the bottom of the chamber 1. The bonding plate 302 prevents external water from entering the interior by tightly fitting above the annular groove, thereby achieving a sealing effect.

[0032] The outside of the chamber 1 is connected to an inflation tube 7 that is connected to the inner wall of the chamber 1, and the inflation tube 7 is located around the storage bag 6. A gasket 5 is provided on the outer circle of the bottom of the chamber 1. The inflation tube 7 can pump high-pressure gas inward to squeeze part of the liquid in the storage bag 6 outward, thereby increasing the buoyancy and reducing the weight when pulling upward.

[0033] During use, the chamber 1 is allowed to fall rapidly to the bottom of the water as a whole by means of a counterweight, and there is a traction rope. When it falls to the water drop, the solenoid valves in the second water inlet pipe 403 on both sides are opened to allow water to enter the sealed space formed by the blades of the sealed impeller 402 and the water storage chamber. Since the second water inlet pipe 403 is at the top, the water flows in from the top, resulting in more liquid at the top. Under the action of gravity, the water pushes the sealed impeller 402 to rotate, allowing the sealed space formed by the next blade and the water storage chamber to communicate with the second water inlet pipe 403, and water enters again. During the whole process, the sealed impeller 402 drives the bevel gear 401 to rotate, and the bevel gear 401 then drives the bevel gear ring 301 and the cutter head 303 in the stirring assembly 3 to rotate, and the cutter head 303 is used to drill the soil on the riverbed; At the same time, the water inlet pipe 202 is opened to force the mud and water in the stirred riverbed to enter the storage bag 6. The entire entry process is driven by water pressure. When the liquid and mud in the storage bag 6 are filled, in order to reduce the resistance during ascent, gas is injected into the chamber 1 through the inflation pipe 7. In the process of injecting gas, the gas on both sides will continuously squeeze the storage bag 6, generating a large space with high pressure. At this time, the storage bag 6 will be squeezed into a funnel shape, with the upper layer being the liquid in the riverbed mud and the lower layer being the mud body. After the gas is injected, the excess water and mud will be discharged from the one-way valve above, leaving only a small amount of sample. At this time, due to the increase in gas content and the reduction in liquid, the buoyancy of the entire device will increase, making it easier to pull it up with a rope, and the counterweight can be discarded to allow the device to rise naturally. The counterweight can be sand filled in sacks.

[0034] It should be noted that the above-described specific embodiments are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that various modifications, equivalent substitutions, and variations may be made to the present invention. However, as long as these modifications do not depart from the spirit of the present invention, they are intended to be within the scope of protection of the present invention. Furthermore, certain terms used in the specification and claims of this application are not intended to be limiting and are provided solely for ease of description.

Claims

1. An automated sampling system for water quality monitoring, comprising a chamber (1) on which a counterweight can be suspended and a water inlet (2) located at the bottom of the chamber (1), characterized in that: A stirring assembly (3) for stirring the soil layer is provided at the bottom of the chamber (1), driving assemblies (4) for pushing the stirring assembly (3) are provided on both sides of the chamber (1), a storage bag (6) that can be squeezed by gas and is connected to the water inlet (2) is provided in the chamber (1), and a one-way valve for discharging liquid in the storage bag (6) is provided outside the chamber (1).

2. The automated sampling system for water quality monitoring according to claim 1, wherein: The water inlet (2) comprises a conical tube (201) and a water inlet pipe (202). The conical tube (201) is conical and recessed into the chamber (1). The top of the conical tube (201) is connected to the water inlet pipe (202). A solenoid valve is provided in the water inlet pipe (202) and is connected to the storage bag (6).

3. The automated sampling system for water quality monitoring according to claim 1, wherein: The driving assembly (4) comprises a bevel gear (401) and a water inlet assembly, wherein the bevel gear (401) forms a one-way rotation connection with the chamber (1), and the bevel gear (401) forms a driving connection with the water inlet assembly.

4. The automated sampling system for water quality monitoring according to claim 2, wherein: The water inlet assembly comprises a sealing impeller (402), a second water inlet pipe (403) and a water storage chamber. The bevel gear (401) is connected to the sealing impeller (402) via a connecting shaft. The sealing impeller (402) is located inside the water storage chamber, and the second water inlet pipe (403) is located at the top of the water storage chamber.

5. The automated sampling system for water quality monitoring according to claim 3, characterized in that: The second water inlet pipe (403) is located above the sealing impeller (402), and the sealing impeller (402) divides the inner space of the water storage chamber into at least three equal parts.

6. The automated sampling system for water quality monitoring according to claim 3, characterized in that: The stirring assembly (3) comprises a bevel gear ring (301) and an agitator, and the bevel gear ring (301) and the bevel gear (401) are meshedly connected with each other.

7. The automated sampling system for water quality monitoring according to claim 6, characterized in that: The agitator comprises a bonding plate (302) and a blade disc (303); the bottom of the chamber (1) is slidably connected to the blade disc (303) by providing an annular groove; the bonding plate (302) is tightly bonded to the top of the annular groove at the bottom of the chamber (1).

8. The automated sampling system for water quality monitoring according to claim 1, wherein: The outside of the chamber (1) is connected to an inflation tube (7) that is in communication with the inner wall of the chamber (1), and the inflation tube (7) is located around the storage bag (6). A gasket ring (5) is provided on the outer ring of the bottom of the chamber (1).

Images