A small reservoir water quality monitoring device

Abstract

The utility model provides a kind of small reservoir water quality monitoring device, it is related to water quality monitoring technical field, including annular floating air bag, the inside of annular floating air bag is provided with continuous sampling mechanism, and continuous sampling mechanism includes open mounting plate, and the inner wall of annular floating air bag is fixedly sleeved with the outside of open mounting plate, the accurate extraction of water sample of different depth is realized by first servo motor, gear transmission, first water pump and other components in continuous sampling mechanism, and residual water sample in extension hose can be discharged before extraction, avoid cross contamination, sampling precision is high, protection mechanism relies on servo electric cylinder, conical sealing plug, carousel etc., to the sealing protection of sampling tube, prevent dust and other impurities from entering, guarantee water sample purity, not only let water quality sampling be more accurate, convenient, realize remote control, also improve the device protection performance, provide reliable water sample basis for subsequent water quality detection, guarantee the accuracy and efficiency of small reservoir water quality monitoring.

Description

Technical Field

[0001] This utility model relates to the field of water quality monitoring technology, and in particular to a small reservoir water quality monitoring device. Background Technology

[0002] A reservoir is an artificial lake that stores water resources. It is usually located on a river channel and is formed by introducing water from various directions to store water. The characteristics of a reservoir are that the water flow is relatively still, but there is still some fluidity. In addition, due to the large changes in the water quality of the water introduced into the reservoir and the fluidity of the water, continuous water quality monitoring is required. The basis of water quality monitoring is the acquisition of water samples. Existing water samples are prone to pollution during acquisition, which reduces the accuracy of subsequent test results.

[0003] For example, a reservoir water quality monitoring device disclosed in Chinese patent literature (publication number: CN223107788U) involves pumping a portion of the extracted water into a water quality analyzer for testing and storing the data inside. The remaining water is stored in a corresponding storage tube for sample preservation. In this case, the sample can be accurately tested by an external laboratory later, and the two sets of data can be compared to accurately determine the water quality at different depths, thereby effectively improving the accuracy of monitoring.

[0004] However, when water samples are collected from different depths, the residue from the previous batch remains in the inlet hose, making it difficult to remove completely. This thoroughly disrupts the original composition of the water sample, significantly reducing its representativeness. Furthermore, since multiple storage tubes are open, external dust, microorganisms, and other pollutants can easily intrude during continuous sampling. These pollutants interact with the water sample, altering its chemical properties and microbial community structure. This causes fluctuations in indicators such as dissolved oxygen and pH levels, and microbial metabolic activity interferes with water quality testing results. Consequently, the test data cannot accurately reflect the reservoir's water quality, severely reducing the accuracy of the test results. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the tendency for water samples from different layers to mix during reservoir sampling and the risk of contamination during continuous sampling, which affects the accuracy of subsequent test results.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A small reservoir water quality monitoring device includes an annular floating airbag, the annular floating airbag having a continuous sampling mechanism inside.

[0008] The continuous sampling mechanism includes an open mounting plate, the outer side of which is fixedly sleeved with the inner wall of the annular floating airbag. The upper end of the open mounting plate is fixedly connected with symmetrically distributed vertical plates. The inner walls of the two vertical plates are rotatably connected to a sleeve via a bearing. An extension hose is fixedly connected to the outer side of the sleeve. One end of the extension hose extends to the lower part of the annular floating airbag and is fixedly connected to an anti-clogging net head. An external toothed ring is fixedly sleeved on the outer side of one end of the sleeve.

[0009] A protective mechanism is provided above the annular floating airbag.

[0010] Preferably, a first servo motor is fixedly installed on one side of one of the upright plates, and a first rotating shaft is fixedly installed on the output shaft of the first servo motor through a coupling. A drive gear is fixedly sleeved on one end of the first rotating shaft.

[0011] Preferably, the tooth surface of the drive gear meshes with the tooth surface of the outer gear ring, and the upper ends of both upright plates are fixedly connected to a mounting box. A wireless transmission module is fixedly installed on the front of the mounting box, and a first water pump is fixedly installed on one side of the mounting box.

[0012] Preferably, the inlet end of the first water pump is fixedly connected to a first inlet pipe, one end of the first inlet pipe is rotatably connected to one side of the sleeve through a sealed bearing, the outlet end of the first water pump is fixedly connected to a drain pipe, and a storage battery and a PLC controller are fixedly installed on the inner bottom wall of the mounting box.

[0013] Preferably, the protective mechanism includes a protective housing, the lower end of which is fixedly connected to the inner bottom wall of the mounting box, the upper end of which has a connecting slot, and a second water pump is fixedly installed on the upper end of the protective housing, with a second water inlet pipe fixedly connected to the water inlet end of the second water pump.

[0014] Preferably, one end of the second inlet pipe is fixedly connected to the outside of the drain pipe, the outlet end of the second water pump is fixedly connected to a tapered guide pipe, a second servo motor is fixedly installed on the inner bottom wall of the protective housing, and a second rotating shaft is fixedly installed on the output shaft of the second servo motor through a coupling.

[0015] Preferably, a turntable is fixedly sleeved on one end of the second rotating shaft. The turntable is rotatably connected to the inner wall of the protective housing via a bearing. Sampling tubes arranged in a ring array are movably inserted into the inner wall of the turntable. A servo electric cylinder is fixedly installed on the inner top wall of the protective housing. A sector-shaped lifting plate is fixedly connected to one end of the piston rod of the servo electric cylinder. A conical sealing plug arranged in a ring array is fixedly connected to the lower end of the sector-shaped lifting plate. One end of the conical sealing plug contacts the upper end of the sampling tube.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, the continuous sampling mechanism utilizes components such as a first servo motor, gear transmission, and a first water pump to achieve precise extraction of water samples from different depths. Residual water samples within the extension hose are discharged before extraction to prevent cross-contamination, resulting in high sampling accuracy. The protective mechanism, relying on a servo electric cylinder, conical sealing plug, and turntable, seals the sampling tube to prevent dust and other impurities from entering, ensuring water sample purity. This not only makes water sampling more accurate and convenient, enabling remote control, but also enhances the device's protective performance, providing a reliable water sample basis for subsequent water quality testing and ensuring the accuracy and efficiency of water quality monitoring in small reservoirs. Attached Figure Description

[0018] Figure 1 A schematic diagram of the main structure of a small reservoir water quality monitoring device provided by this utility model;

[0019] Figure 2 A partial perspective view of the sleeve structure of a small reservoir water quality monitoring device provided by this utility model;

[0020] Figure 3 A three-dimensional view of the first water pump structure of a small reservoir water quality monitoring device provided by this utility model;

[0021] Figure 4 A three-dimensional view of the protective shell structure of a small reservoir water quality monitoring device provided by this utility model;

[0022] Figure 5 An exploded view of the fan-shaped lifting plate structure of a small reservoir water quality monitoring device provided by this utility model.

[0023] Legend: 1. Annular floating airbag; 2. Open mounting plate; 21. Vertical plate; 22. Sleeve; 23. Extension hose; 24. Anti-clogging mesh head; 25. External gear ring; 26. First servo motor; 27. First rotating shaft; 28. Drive gear; 29. ​​Mounting box; 210. Wireless transmission module; 211. First water pump; 212. First water inlet pipe; 213. Drain pipe; 214. PLC controller; 215. Battery; 3. Protective housing; 31. Connecting slot; 32. Second water pump; 33. Second water inlet pipe; 34. Conical guide pipe; 35. Second servo motor; 36. Second rotating shaft; 37. Turntable; 38. Sampling tube; 39. Servo electric cylinder; 310. Fan-shaped lifting plate; 311. Conical sealing plug. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Example

[0029] like Figures 1-5 As shown, this utility model provides a technical solution: a small reservoir water quality monitoring device, including an annular floating airbag 1 and a continuous sampling mechanism inside the annular floating airbag 1, which establishes an automated and precise extraction system for water samples at different depths in the reservoir, completely changing the situation where depth control is difficult and cross-contamination is easy when using traditional manual sampling or simple sampling devices, and providing core technical support for multi-depth and multi-time period water quality monitoring in small reservoirs.

[0030] The fixed connection between the opening mounting plate 2 and the inner wall of the annular floating airbag 1, as well as the connection with the symmetrical upright plate 21, forms a stable triangular support structure, ensuring that the positions of each component of the continuous sampling mechanism are stable within the annular floating airbag 1, laying the foundation for subsequent accurate sampling.

[0031] The sleeve 22 is rotatably connected to the upright plate 21 via a bearing, providing ultra-stable support for the extension and retraction of the extension hose 23. This ensures that during the movement of the extension hose 23, the anti-clogging net head 24 is accurately positioned at the target sampling depth when the water sample is drawn, avoiding water sample depth errors due to positional deviation and ensuring the representativeness of the water sample depth.

[0032] The first servo motor 26 drives the first rotating shaft 27 to rotate. Through the meshing of the drive gear 28 and the outer gear ring 25, the power is efficiently transmitted to the sleeve 22, so that the rotation control of the sleeve 22 and the extension hose 23 is accurate, and the extension hose 23 can be accurately lowered to the required sampling depth to meet the needs of accurate water quality monitoring of different water layers in small reservoirs.

[0033] The wireless transmission module 210 on the mounting box 29 can stably receive remote control signals within a range of 100 meters, enabling remote control of the device. Compared with traditional on-site operation methods, the sampling flexibility is improved, making it especially suitable for scenarios with large reservoir areas and inconvenient on-site operation.

[0034] The first water pump 211 can quickly complete the extraction of water samples and the discharge of residual water samples in the extension hose 23, effectively avoiding cross-contamination of water samples at different depths, ensuring the purity of water samples, and providing reliable samples for subsequent water quality testing.

[0035] The rotating sealed connection between the first water inlet pipe 212 and the sleeve 22 adopts IP65-level sealing technology, which can maintain the water circuit continuity when the sleeve 22 rotates, avoiding water sample loss or device failure due to leakage. The battery life is up to 48 hours, which can support the device to work continuously for 2 days, meeting the needs of long-term and high-frequency water quality monitoring in small reservoirs. The PLC controller 214 can quickly receive the signal from the wireless transmission module 210 and accurately control the first servo motor 26, the first water pump 211 and other components to work together, making the entire sampling process automated and accurate, and improving sampling efficiency compared with traditional manual control.

[0036] The protective mechanism above the annular floating airbag 1 creates a high-cleanliness protection system for water sample storage, solving the problem of traditional open storage of sampling tube 38 being susceptible to dust and water vapor contamination, ensuring the purity of water samples during storage. The protective shell 3 has an IP54 protection rating, which can effectively block external dust and water vapor from entering the interior, creating a clean storage environment for the water samples in the sampling tube 38.

[0037] The second water pump 32 can accurately extract water samples. In conjunction with the conical guide tube 34, it can ensure that the water sample flows accurately into the sampling tube 38, avoiding water sample overflow or flowing into the wrong sampling tube 38, and ensuring the accuracy and integrity of water sample storage.

[0038] The second servo motor 35 drives the second rotating shaft 36 to rotate, which in turn drives the turntable 37 to rotate. This allows for precise rotation of the empty sampling tube 38 to below the conical guide tube 34, or rotation of the sampling tube 38 containing stored water samples to the protective position, thus enabling the orderly storage and protection switching of multiple sets of water samples.

[0039] The servo electric cylinder 39 controls the lifting and lowering of the sector-shaped lifting plate 310, which drives the conical sealing plug 311 to move precisely. The sealing pressure reaches 50N during sealing, which can achieve efficient sealing of the sampling tube 38, effectively preventing external impurities from entering the sampling tube 38, ensuring the purity of the stored water sample before subsequent testing, and providing a strong guarantee for the accuracy of water quality test results.

[0040] It should be noted that the electrical components mentioned above are all existing mature technologies, and appropriate models and power can be selected based on the technical knowledge of those skilled in the art, so they will not be described in detail here.

[0041] The working process of this utility model:

[0042] Step 1: The device floats on the surface of a small reservoir using an annular floating airbag 1. Battery 215 provides power to the first servo motor 26, the second servo motor 35, the first water pump 211, the second water pump 32, the servo electric cylinder 39, the wireless transmission module 210, and the PLC controller 214. The PLC controller 214 receives remote control signals through the wireless transmission module 210, preparing for water sampling. Initially, the extension hose 23 is retracted, and the fan-shaped lifting plate 310, under the action of the servo electric cylinder 39, seals the conical sealing plug 311. In addition to the sampling tubes 38 to be sampled, other sampling tubes are used to prevent impurities from entering. When sampling, the first servo motor 26 is started first. The output shaft of the first servo motor 26 drives the first rotating shaft 27 to rotate through the coupling. The rotation of the first rotating shaft 27 drives the drive gear 28 to rotate. Since the tooth surface of the drive gear 28 meshes with the tooth surface of the outer gear ring 25 outside the sleeve 22, the rotation of the drive gear 28 drives the sleeve 22 to rotate through the outer gear ring 25, thereby causing the extension hose 23 to extend and descend. After descending to the required depth, the first servo motor 26 is stopped to prepare for the extraction of water samples at that depth.

[0043] Step two: To avoid cross-contamination of the sampling process by residual water sample in the extension hose 23, the first water pump 211 is started. The first water pump 211, in conjunction with the extension hose 23 and the anti-clogging mesh head 24, pumps water into the sleeve 22, then through the first inlet pipe 212 to the drain pipe 213, and finally drains the water into the reservoir through the drain pipe 213, completing the removal of residual water sample from the extension hose 23 and ensuring the purity of the subsequently extracted water sample. During the removal of residual water sample from the extension hose 23, the second water pump 32 is started. The second water pump 32, through the second inlet pipe 33, draws the water flowing in the drain pipe 213 into one of the sampling tubes 38 for storage via the conical guide pipe 34. After extraction is complete, the first water pump 211 and the second water pump 32 stop operating, completing the extraction and storage of water samples at this depth.

[0044] Step three: At this point, the first servo motor 26 drives the drive gear 28 to rotate again via the first rotating shaft 27, causing the sleeve 22 to continue rotating. The extension hose 23 extends and descends further, preparing to extract water samples from deeper or other locations. Simultaneously, the piston rod of the servo electric cylinder 39 retracts, causing the sector-shaped lifting plate 310 to rise. The descending sector-shaped lifting plate 310 causes the conical sealing plug 311 to rise, disengaging it from the sampling tube 38 that currently stores the water sample. Then, the second servo motor 35 drives the turntable 37 to rotate via the second rotating shaft 36, realizing the rotational switching of the sampling tube 38. The next sampling tube 38 is rotated to the current position. Then, the piston rod of the servo electric cylinder 39 extends, driving the fan-shaped lifting plate 310 to descend. The descending of the fan-shaped lifting plate 310 drives the conical sealing plug 311 to descend, blocking multiple sampling tubes 38 except those newly switched to the current position, preventing dust and other impurities from entering, and preparing for the next sampling. When it descends to the appropriate height again, the steps of first starting the first water pump 211 to drain the excess water in the extension hose 23 and then starting the second water pump 32 to perform sampling are repeated to achieve continuous and accurate water sampling at different depths.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A small reservoir water quality monitoring device, comprising an annular floating airbag (1), characterized in that: The annular floating airbag (1) is equipped with a continuous sampling mechanism inside; The continuous sampling mechanism includes an open mounting plate (2), the outside of which is fixedly sleeved with the inner wall of the annular floating airbag (1). The upper end of the open mounting plate (2) is fixedly connected with symmetrically distributed vertical plates (21). The inner walls of the two vertical plates (21) are rotatably connected with sleeves (22) through bearings. The outside of the sleeves (22) is fixedly connected with an extension hose (23). One end of the extension hose (23) extends to the bottom of the annular floating airbag (1) and is fixedly connected with an anti-clogging net head (24). One end of the sleeve (22) is fixedly sleeved with an external toothed ring (25). A protective mechanism is provided above the annular floating airbag (1).

2. The small reservoir water quality monitoring device according to claim 1, characterized in that: One of the upright plates (21) is fixedly mounted on one side with a first servo motor (26), and the output shaft of the first servo motor (26) is fixedly mounted with a first rotating shaft (27) through a coupling. A drive gear (28) is fixedly sleeved on one end of the first rotating shaft (27).

3. The small reservoir water quality monitoring device according to claim 2, characterized in that: The tooth surface of the drive gear (28) meshes with the tooth surface of the outer gear ring (25). The upper ends of the two vertical plates (21) are fixedly connected to the mounting box (29). The front of the mounting box (29) is fixedly installed with a wireless transmission module (210). The first water pump (211) is fixedly installed on one side of the mounting box (29).

4. The small reservoir water quality monitoring device according to claim 3, characterized in that: The first water pump (211) has a first water inlet pipe (212) fixedly connected to its inlet end. One end of the first water inlet pipe (212) is rotatably connected to one side of the sleeve (22) through a sealed bearing. The first water pump (211) has a drain pipe (213) fixedly connected to its outlet end. The inner bottom wall of the mounting box (29) is fixedly equipped with a storage battery (215) and a PLC controller (214).

5. A small reservoir water quality monitoring device according to claim 4, characterized in that: The protective mechanism includes a protective housing (3), the lower end of which is fixedly connected to the inner bottom wall of the mounting box (29), the upper end of which is provided with a connecting slot (31), and a second water pump (32) is fixedly installed on the upper end of the protective housing (3), and the water inlet end of the second water pump (32) is fixedly connected to a second water inlet pipe (33).

6. A small reservoir water quality monitoring device according to claim 5, characterized in that: One end of the second inlet pipe (33) is fixedly connected to the outside of the drain pipe (213), and the outlet end of the second water pump (32) is fixedly connected to a tapered guide pipe (34). The inner bottom wall of the protective housing (3) is fixedly installed with a second servo motor (35), and the output shaft of the second servo motor (35) is fixedly installed with a second rotating shaft (36) through a coupling.

7. A small reservoir water quality monitoring device according to claim 6, characterized in that: A turntable (37) is fixedly sleeved on one end of the second rotating shaft (36). The turntable (37) is rotatably connected to the inner wall of the protective housing (3) through a bearing. Sampling tubes (38) arranged in a ring array are movably inserted into the inner wall of the turntable (37). A servo electric cylinder (39) is fixedly installed on the inner top wall of the protective housing (3). A fan-shaped lifting plate (310) is fixedly connected to one end of the piston rod of the servo electric cylinder (39). A conical sealing plug (311) arranged in a ring array is fixedly connected to the lower end of the fan-shaped lifting plate (310). One end of the conical sealing plug (311) is in contact with the upper end of the sampling tube (38).

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