Self-sinking and self-floating water quality detection buoy

By designing a self-sinking and floating water quality testing buoy, and utilizing drainage components and sealing rings to achieve automatic adjustment of the buoy within the water body and water quality collection, the problem of existing technologies being unable to reflect vertical water quality differences in the water body is solved, and efficient and stable multi-depth water quality testing is achieved.

CN121361541APending Publication Date: 2026-01-20CHINA CONSTR THIRD BUREAU GREEN IND INVESTMENT CO LTD
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Patent Information

Application Number
CN202511819831.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-04
Publication Date
2026-01-20

AI Technical Summary

Technical Problem

Existing water quality testing buoys cannot automatically sink and float, and cannot reflect the differences in water quality in the vertical direction of the water body. In addition, traditional sedimentation testing devices are complicated to operate and are easily affected by water flow, and cannot achieve water sample testing at different depths.

Method used

Design a self-sinking and floating water quality detection buoy. Adjust the buoy's suspension height in the water body through a drainage component. Combined with a sealing ring and a water quality sensor, it can achieve automatic collection and detection at different depths.

Benefits of technology

It achieves efficient and stable detection of water bodies at different depths, and can automatically collect and detect water quality at different depths, thus improving the accuracy and stability of the detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a self-sinking and floating water quality detection buoy which comprises a buoy unit which comprises a buoy assembly used for sinking and floating in a water body and a drainage assembly arranged on the upper portion of the buoy assembly and used for adjusting the suspension height of the buoy assembly in the water body; the sampling detection unit comprises a collecting pipe and a water quality sensor, the collecting pipe is used for automatically collecting water quality when the buoy assembly floats to different depths, the water quality sensor is arranged in the buoy assembly and used for detecting the water collected in the collecting pipe in real time, and a sealing ring used for blocking the water in the collecting pipe is arranged on the lower portion of the collecting pipe. Further expansion is performed through the drainage assembly, so that the buoy assembly moves upwards by a certain distance and continues to be in a suspension state, water corresponding to the depth is collected and detected, and the buoy assembly is recycled until the buoy assembly completely floats on the water surface, so that the water quality of different depths can be detected through automatic sinking and floating; and water at different depths can be collected.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water quality detection buoy, in particular to a self-sinking and floating water quality detection buoy. BACKGROUND

[0002] The buoy device is an automatic water quality monitoring laboratory or a weather monitoring device set in a river, a lake, a reservoir, a near-shore sea area, etc. The device takes a water quality monitoring instrument or an instrument platform as a core, uses sensor technology, combines a buoy body, a power supply system and a data transmission device to form a small water quality monitoring system or a weather system placed in a water area. The water quality detection buoy in the prior art is mostly fixed floating type or single depth sinking type. However, the fixed floating type buoy does not have the function of automatic sinking and floating, can only collect surface water data, cannot reflect the water quality difference in the vertical direction of the water body, and the detection range is limited. In addition, the traditional sinking type detection device needs to be adjusted in depth by a cable traction or a heavy counterweight, and the operation is complex and easily disturbed by water flow, so the stability is poor. The device cannot sample and detect water samples at different depths during the sinking and floating process. In view of the above problems, the present application provides a self-sinking and floating water quality detection buoy, which realizes efficient and stable detection and collection of water bodies at different depths.

[0003] The above content is only used to assist in understanding the technical solutions of the present application, and does not mean that the above content is the closest prior art. SUMMARY

[0004] The present application aims to provide a self-sinking and floating water quality detection buoy to solve the problem that the water quality detection buoy in the prior art does not have the function of automatic sinking and floating, can only collect data of the surface layer of the water body, and cannot automatically sample and detect water bodies at different depths.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: A self-sinking and floating water quality detection buoy, comprising: A buoy unit, comprising a buoy assembly for sinking and floating in a water body, and a drainage assembly arranged on the upper part of the buoy assembly for adjusting the suspension height of the buoy assembly in the water body; A sampling and detection unit, comprising a collection pipe for automatically collecting water quality while floating to different depths on the buoy assembly, a water quality sensor arranged in the buoy assembly for real-time detection of the collected water in the collection pipe, and a sealing ring arranged at the lower part of the collection pipe for sealing the water in the collection pipe.

[0006] Further, the buoy assembly comprises: A buoy body, and a top plate fixedly sleeved on the upper part of the buoy body; An amplification section is arranged at the middle of the buoy body; A battery compartment is fixedly connected to the lower end of the buoy body, and a battery is arranged in the battery compartment to supply power to the buoy body; An antenna is arranged at the upper end of the buoy body to transmit signals to the terminal for tracking the position of the buoy body.

[0007] Further, the drainage assembly comprises: An electric cylinder is arranged in the buoy body below the amplification section; A piston is fixedly connected to the driving end of the electric cylinder and is slidingly inserted into the amplification section; An air guide pipe is connected to the upper end of the amplification section and is arranged in the buoy body; An adapter pipe is connected to the upper end of the air guide pipe, and the two ends of the adapter pipe are in communication with the inside of the top plate; A ring-shaped air bag is arranged at the upper end of the top plate and is arranged outside the buoy body to adjust the lifting of the buoy body in the water; An air inlet pipe is arranged in the top plate, one end of the air inlet pipe is in communication with the adapter pipe, and the other end is in communication with the ring-shaped air bag.

[0008] Further, the amplification section is provided with an amplification groove for guiding the movement of the piston; The inner diameter of the amplification groove is greater than the inner diameter of the buoy body, so as to reduce the overall length of the buoy body.

[0009] Further, a limiting frame is fixedly connected to the upper end of the top plate and is arranged outside the ring-shaped air bag at equal angles to limit the ring-shaped air bag.

[0010] Further, the sampling and detecting unit further comprises: A support is fixedly connected to one side of the buoy body to support the lower end of the collection tube; A lifting shaft is slidingly inserted into the collection tube, the upper end of the lifting shaft is fixedly connected to the lower end of the piston to synchronously lift with the piston; A pulling shaft is fixedly connected to the middle of the lower end of the lifting shaft, and a plurality of groups of sealing rings are fixedly arranged on the outer side of the pulling shaft at equal intervals; A water quality sensor is arranged in the buoy body to detect the water quality brought into the collection tube by the sealing ring.

[0011] Further, the outer diameter of the sealing ring is equal to the inner diameter of the collection tube to block the water entering the collection tube.

[0012] Further, the water quality sensor comprises: a detector installed on the inner wall of the buoy body; a detection head arranged inside the buoy body and located at one side of the collecting pipe, used for detecting the water quality sealed by the sealing ring in the collecting pipe in real time, a temporary storage groove for accommodating the detection head being arranged outside the detection head inside the buoy body, and the temporary storage groove being communicated with the inside of the collecting pipe; a data line having one end electrically connected with the detection head and the other end electrically connected with the detector, used for transmitting the data detected by the detection head to the detector for analysis and storage.

[0013] Compared with the prior art, the present application has the following advantages: The buoy assembly is placed into the water body, and when the buoy assembly gradually sinks to the corresponding depth of the water quality to be detected from the water body, the drainage assembly expands, so that the buoy assembly is suspended at the depth, at the same time, the drainage assembly drives the sealing ring to bring the water quality at the depth into the collecting pipe for collection, the water quality at the corresponding depth in the collecting pipe is detected by the water quality sensor, then the drainage assembly further expands, so that the buoy assembly moves upward by a certain distance and continues to be in a suspended state, and the water quality corresponding to the depth is collected and detected, until the buoy assembly completely floats on the water surface, the buoy assembly is recycled, so that the water quality at different depths can be detected by automatic sinking and floating, and the water quality at different depths can be collected. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a cooperation relationship diagram of the pull shaft and the sealing ring of the present application; Figure 3 It is a schematic diagram of the internal structure of the buoy unit of the present application; Figure 4 It is an enlarged view of position A in the present application; Figure 3 Figure 5 It is an enlarged view of position B in the present application; Figure 3 Figure 6 It is a schematic diagram of the water taking process of the present application; Figure 7 It is an enlarged view of position C in the present application; Figure 6

[0015] ​​​Label: 1, buoy unit; 11, buoy assembly; 111, buoy body; 1111, temporary storage groove; 112, top plate; 113, expansion section; 1131, expansion groove; 114, battery compartment; 115, antenna; 12, drainage assembly; 121, electric cylinder; 122, piston; 123, air guide pipe; 124, adapter pipe; 125, air inlet pipe; 126, annular air bag; 127, limiting frame; 2, sampling and detection unit; 21, support; 211, rib plate; 22, collection pipe; 23, lifting shaft; 24, pull shaft; 25, sealing ring; 26, water quality sensor; 261, detector; 262, data line; 263, detection head. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0017] Please refer to Figures 1-7 The present application provides a technical solution: A self-sinking and floating water quality detection buoy, comprising: A buoy unit 1, comprising a buoy assembly 11 for sinking and floating in a water body, and a drainage assembly 12 arranged on the upper part of the buoy assembly 11 for adjusting the suspension height of the buoy assembly 11 in the water body; A sampling and detection unit 2, comprising a collection pipe 22 for automatically collecting water quality while floating to different depths on the buoy assembly 11, a water quality sensor 26 arranged inside the buoy assembly 11 for real-time detection of the collected water in the collection pipe 22, and a sealing ring 25 arranged at the lower part of the collection pipe 22 for blocking the water in the collection pipe 22.

[0018] It should be noted that: when it is necessary to detect the water quality, the buoy assembly 11 is placed into the water body, the buoy assembly 11 gradually sinks to the corresponding depth of the water quality to be detected from the water body, the drainage assembly 12 expands, so that the buoy assembly 11 is suspended at the depth, at the same time, the drainage assembly 12 drives the sealing ring 25 to bring the water quality at the depth into the collection pipe 22 for collection, the water quality at the corresponding depth in the collection pipe 22 is detected by the water quality sensor 26, then the drainage assembly 12 further expands, so that the buoy assembly 11 moves upward by a certain distance and continues to be in a suspended state, and the water quality corresponding to the depth is collected and detected, until the buoy assembly 11 completely floats on the water surface, the buoy assembly 11 is recycled, so that the water quality at different depths can be detected by automatic sinking and floating, and the water quality at different depths can be collected.

[0019] As an improvement, as shown in Figure 1 The buoy assembly 11 comprises: A buoy body 111, of which the upper part is fixedly sleeved with a top plate 112; An expansion section 113 is arranged at the middle part of the buoy body 111; A battery compartment 114 is fixedly connected at the lower end of the buoy body 111, and a battery is installed inside the battery compartment 114 for power supply to the buoy body 111; An antenna 115 is arranged at the upper end of the buoy body 111 for signal transmission to the operation end for position tracking of the buoy body 111.

[0020] Further, as shown in Figure 3 The drainage assembly 12 comprises: An electric cylinder 121 is installed inside the buoy body 111 below the expansion section 113; A piston 122 is fixedly connected at the driving end of the electric cylinder 121, and the piston 122 is slidingly inserted into the inside of the expansion section 113; A gas guide pipe 123 is connected at the upper end of the expansion section 113 and located inside the buoy body 111; An adapter pipe 124 is connected at the upper end of the gas guide pipe 123, and both ends of the adapter pipe 124 are in communication with the inside of the top plate 112; A ring-shaped air bag 126 is arranged at the upper end of the top plate 112 and located outside the buoy body 111, for lifting adjustment of the buoy body 111 in the water body; An air inlet pipe 125 is arranged inside the top plate 112, one end of the air inlet pipe 125 is in communication with the adapter pipe 124, and the other end is in communication with the ring-shaped air bag 126.

[0021] Further, as shown in Figure 3 The expansion section 113 is internally provided with an expansion groove 1131 for guiding the movement of the piston 122; The inner diameter of the expansion groove 1131 is greater than the inner diameter of the buoy body 111, for reducing the overall length of the buoy body 111.

[0022] The upper end of the top plate 112 and located outside the ring-shaped air bag 126 is fixedly connected with a limiting frame 127 at equal angles, for limiting the ring-shaped air bag 126.

[0023] As an improvement, as shown in Figures 3-4 , Figures 6-7 The sampling detection unit 2 further comprises: A support 21 is fixedly connected to one side of the buoy body 111 and used for supporting the lower end of a collecting tube 22, and a rib plate 211 is fixedly connected to the upper end of the support 21 and located between the collecting tube 22 and the buoy body 111; A lifting shaft 23 is slidingly inserted into the collecting tube 22, and the upper end of the lifting shaft 23 is fixedly connected to the lower end of the piston 122 and used for synchronous lifting with the piston 122; A pulling shaft 24 is fixedly connected to the middle of the lower end of the lifting shaft 23, and a plurality of groups of sealing rings 25 are fixedly sleeved on the outer side of the pulling shaft 24 at equal intervals; A water quality sensor 26 is arranged in the buoy body 111 and used for detecting the water quality brought into the collecting tube 22 by the sealing ring 25.

[0024] Further, as shown in Figures 6-7 , the outer diameter of the sealing ring 25 is equal to the inner diameter of the collecting tube 22, so as to block the water quality entering the collecting tube 22.

[0025] Further, as shown in Figure 7 , the water quality sensor 26 comprises: A detector 261 is mounted on the inner wall of the buoy body 111; A detection head 263 is arranged in the buoy body 111 and located at one side of the collecting tube 22 and used for real-time detection of the water quality blocked by the sealing ring 25 in the collecting tube 22, and a temporary storage groove 1111 for accommodating the detection head 263 is arranged in the buoy body 111 and located at the outer side of the detection head 263, and the temporary storage groove 1111 is communicated with the inside of the collecting tube 22; A data line 262 is electrically connected to one end of the detection head 263 and electrically connected to the other end of the detector 261, and used for transmitting the data detected by the detection head 263 to the detector 261 for analysis and storage.

[0026] It should be noted that the specific water quality detection parameters of the water quality sensor 26 can be switched according to the detection requirements, such as DO dissolved oxygen, pH, turbidity, conductivity, algae, etc. The bottom of the antenna 115 in the application is provided with a positioner for positioning the sinking depth, and the device can be used for collecting and detecting the water quality in the ocean, lake and river, and the maximum diving depth is generally 500 meters, and the general placement time in the water body is 10 days.

[0027] It should be noted that, in the specific implementation process of the application, Figure 1 , Figure 3As shown, initially, piston 122 is located at the bottom of amplification tank 1131, and annular airbag 126 is in a fully contracted state, lowering buoy body 111 into the water. Buoy body 111 gradually sinks in the water. When buoy body 111 sinks to the maximum depth to be detected, electric cylinder 121 is activated. Electric cylinder 121 drives piston 122 to move upward a short distance along amplification tank 1131, so that the air in amplification tank 1131 passes through air guide pipe 123, adapter pipe 124, air inlet pipe 125 and finally enters annular airbag 126, increasing the drainage area of ​​annular airbag 126 and increasing the overall buoyancy of buoy body 111. At this time, buoy body 111 stops sinking and is suspended in the water at the maximum depth to be detected. like Figures 5-7 As shown, during the process of the electric cylinder 121 driving the piston 122 to move upward along the amplification tank 1131, the piston 122 drives the pull shaft 24 to move upward a certain distance through the lifting shaft 23. The pull shaft 24 drives the sealing ring 25 from the outside of the collection tube 22 to the inside of the collection tube 22, so that a portion of the water corresponding to this depth is collected into the collection tube 22 for temporary storage. At the same time, after the water enters the inside of the collection tube 22, the detection head 263 directly performs real-time detection on the water and transmits the detected data to the detector 261 for analysis through the data line 262. like Figures 1-7 As shown, after the water body corresponding to the depth is detected and collected, the electric cylinder 121 pushes the piston 122 to move a small section along the inside of the amplification tank 1131, causing the annular airbag 126 to expand further and the drainage area of ​​the annular airbag 126 to increase further, causing the buoy assembly 11 to rise a further distance in the water body. During this process, the piston 122 drives the sealing ring 25 to move upward through the lifting shaft 23 under the action of the pull shaft 24. The sealing ring 25 continues to collect the water at the corresponding depth into the collection pipe 22 and performs the next round of detection and analysis through the detector 261, thereby enabling the detection and collection of water quality at different depths. like Figures 6-7 As shown, after collecting and testing multiple water samples according to the above steps, the annular airbag 126 expands to its maximum size, and the buoy body 111 finally floats on the water surface. At this time, the buoy body 111 is retrieved, and the electric cylinder 121 is retracted in sections, so that the electric cylinder 121 drives the lifting shaft 23 to move downward along the collection tube 22 through the piston 122, so that the water samples collected at different depths in the collection tube 22 are unloaded and packaged into different containers for experimental research.

[0028] The piston 122 can be driven to ascend and descend in the expansion groove 1131 by controlling the electric cylinder 121, so that the piston 122 can drive the sealing ring 25 to ascend and descend under the action of the pull shaft 24 through the lifting shaft 23, the water at the depth can be taken into the collecting pipe 22 and correspond to the detection head 263 in multiple times, the detection head 263 can detect the water quality at the depth in multiple times, and the accuracy of the detection result is improved.

[0029] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-sink-float water quality detection buoy, characterized in that, The utility model relates to a self-sinking and floating water quality detection buoy, which comprises a buoy unit (1) and a sampling and detection unit (2).

2. The self-sinking and floating water quality detection buoy according to claim 1, wherein the buoy unit (1) comprises a buoy body (111), a top plate (112) fixedly sleeved on the upper portion of the buoy body (111), an expansion section (113) arranged on the middle portion of the buoy body (111), a battery compartment (114) fixedly connected to the lower end of the buoy body (111) and internally provided with a battery for supplying power to the buoy body (111), and an antenna (115) arranged on the upper end of the buoy body (111) and used for transmitting signals to a terminal for tracking the position of the buoy body (111).

3. The self-sinking and floating water quality detection buoy according to claim 2, wherein the drainage assembly (12) comprises an electric cylinder (121) arranged in the buoy body (111) below the expansion section (113), a piston (122) fixedly connected to the driving end of the electric cylinder (121) and slidingly inserted into the expansion section (113), a gas guide pipe (123) connected to the upper end of the expansion section (113) and arranged in the buoy body (111), an adapter pipe (124) connected to the upper end of the gas guide pipe (123) and internally connected to the top plate (112), a ring-shaped air bag (126) arranged on the upper end of the top plate (112) and externally arranged on the buoy body (111) and used for adjusting the lifting of the buoy body (111) in water, and an air inlet pipe (125) arranged in the top plate (112) and internally connected to one end of the adapter pipe (124) and the ring-shaped air bag (126).

4. The self-sinking and floating water quality detection buoy according to claim 3, wherein the expansion section (113) is internally provided with an expansion groove (1131) for guiding the movement of the piston (122).

5. The self-sinking and floating water quality detection buoy according to claim 4, wherein the inner diameter of the expansion groove (1131) is greater than the inner diameter of the buoy body (111) so as to reduce the overall length of the buoy body (111). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The upper end of the top plate (112) and outside the annular air bag (126) are fixedly connected with a limiting frame (127) at equal angles, which is used for limiting the annular air bag (126).

6. The water quality detection buoy capable of self-sinking and floating according to claim 3, characterized in that: The sampling and detecting unit (2) further comprises: a support (21) fixedly connected to one side of the buoy body (111) and used for supporting the lower end of the collecting pipe (22); a lifting shaft (23) slidingly inserted into the collecting pipe (22), wherein the upper end of the lifting shaft (23) is fixedly connected to the lower end of the piston (122) and used for lifting the piston (122) synchronously; a pulling shaft (24) fixedly connected to the middle of the lower end of the lifting shaft (23), wherein a plurality of groups of sealing rings (25) are fixedly sleeved on the outer side of the pulling shaft (24) at equal intervals; a water quality sensor (26) arranged in the buoy body (111) and used for detecting the water quality brought into the collecting pipe (22) by the sealing ring (25).

7. The water quality detection buoy capable of self-sinking and floating according to claim 6, characterized in that: The outer diameter of the sealing ring (25) is equal to the inner diameter of the collecting pipe (22), and the sealing ring (25) is used for plugging the water quality in the collecting pipe (22).

8. The water quality detection buoy capable of self-sinking and floating according to claim 6, characterized in that: The water quality sensor (26) comprises: a detector (261) mounted on the inner wall of the buoy body (111); a detection head (263) arranged in the buoy body (111) and located at one side of the collecting pipe (22) and used for detecting the water quality in the collecting pipe (22) plugged by the sealing ring (25) in real time, wherein a temporary storage groove (1111) for accommodating the detection head (263) is arranged in the buoy body (111) and located outside the detection head (263), and the temporary storage groove (1111) is communicated with the inside of the collecting pipe (22); a data line (262) electrically connected to one end of the detection head (263) and electrically connected to the other end of the detector (261), and used for transmitting the data detected by the detection head (263) to the detector (261) for analysis and storage.