Marine ranch water quality comprehensive detection and alarm structure convenient to position

By designing a prefabricated base body, built-in docking support transverse airbag and auxiliary pressure relief structure in the comprehensive detection and alarm structure of the marine ranch water quality, the adaptive positioning when the water surface is floating is achieved, and the solution is to solve the problem of The problem of excessive position range improves the practicality of the device.

CN119395249AInactive Publication Date: 2025-02-07GUANGDONG OCEAN UNIVERSITY
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Patent Information

Application Number
CN202411558271.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-04
Publication Date
2025-02-07
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the working process of the marine ranch water quality comprehensive detection and alarm structure, due to the large degree of floating water surface, it is impossible to maintain the positioning environment according to the buoyancy of the water surface, resulting in too large position range and limited use.

Method used

A structure including a prefabricated base body, a prefabricated alarm and a prefabricated anchor was designed. Through the built-in butt support of the transverse airbag and an auxiliary pressure relief structure, the movable docking rod and prefabricated magnet parts are used to achieve adaptive positioning and support.

Benefits of technology

This structure can adaptively maintain the positioning environment when the water surface is floating largely, avoid excessive positioning range, and improve the practicality and stability of the device.

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Abstract

The invention discloses a marine ranch water quality comprehensive detection and alarm structure convenient to position, and relates to the field of marine ranches, the marine ranch water quality comprehensive detection and alarm structure comprises a prefabricated base body, the upper end of the prefabricated base body is provided with a prefabricated alarm, the lower end of the prefabricated base body is in butt joint with a preset anchor, and the foundation position of the prefabricated base body is positioned through the preset anchor. According to the marine ranch water quality comprehensive detection and alarm structure convenient to position, four sets of movable butt joint rods and preset butt joint protection floating blocks are distributed at the outer end of a guide embedded part on the outer side of the marine ranch water quality comprehensive detection and alarm structure at equal angles, and when the preset butt joint protection floating blocks on the outer sides of the movable butt joint rods at the corresponding angles are pressed, the pressed movable butt joint rods are pushed to form angle movement; and in the process that the pressed angle of the movable butt joint rod expands and moves inwards, the movable butt joint rod exerts pressure on the butt joint guide rod in contact with the movable butt joint rod, so that the movable butt joint rod pushes the butt joint guide rod to move outwards through reverse force application of the preset magnet pieces with the same magnetic poles, the inner side of the movable butt joint rod moving at the two angles in contact with the movable butt joint rod is supported in an auxiliary mode, and the overlarge pressed deformation degree is avoided.
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Description

Technical Field

[0001] The invention relates to the technical field of marine ranches, and in particular to a marine ranch water quality comprehensive detection alarm structure which is easy to locate. Background Art

[0002] During the regular maintenance of the marine ranch, there is no need to adapt to the corresponding water quality monitoring agency to monitor the water quality inside to avoid water pollution and adverse effects; For example, a groundwater detection alarm device with publication number CN112903941A includes a float, and the water quality detector body includes a water quality detection module, a terminal processing module, a power module and a buzzer. The water quality detection module is signal-connected to the hardness detector and the turbidity detector and the water quality detection module, the water quality detection module is signal-connected to the terminal processing module, the terminal processing module buzzer is electrically connected, and the power module is electrically connected to the terminal processor. Through the designed water quality detector body, when the hardness detector and the turbidity detector come into contact with the groundwater, the turbidity and hardness of the groundwater can be automatically detected, and the signal is transmitted to the terminal processing module for analysis. If it exceeds the standard, the buzzer will sound an alarm, and the hardness and turbidity of the groundwater can be detected simultaneously, making the detection of groundwater more convenient, and solving the problem that the existing device can only perform unilateral detection of the turbidity or hardness of the water quality when in use; Another example is an intelligent water quality detection alarm device and method thereof with publication number CN108010281A, which includes an outer frame, a partition fixedly connected between the top and bottom of the inner wall of the outer frame, a first motor fixedly connected to the bottom of the left side of the partition, a screw fixedly connected to one end of the output shaft of the first motor, both ends of the screw fixedly connected to the bottom of the inner wall of the outer frame through a rotating seat, moving blocks threadedly connected to both sides of the screw surface, and a cross plate rotatably connected to the top of the moving block through a connecting rod, which relates to the field of water quality detection technology. The intelligent water quality detection alarm device achieves the purpose of facilitating the control and adjustment of the camera height and direction, facilitating the shooting of different water surface conditions, facilitating the later detection, facilitating the movement of the device on the water surface, increasing the detection range of the device, facilitating people's use, improving the practicality of the device, and can remind people whether the water surface is polluted. At the same time, it can be remotely controlled and easy to use. For example, in the field of water quality detection with the publication number CN113917098A, in order to solve the problem of inconvenience in separately detecting water quality at different water levels, an automatic online monitoring water quality alarm is disclosed, including a shell installed on the water surface through a mounting part, a conveying mechanism is arranged inside the shell, the conveying mechanism includes a roller, and the outer wall of the roller is sleeved with a conveyor belt, and the outer wall of the shell close to the water surface is provided with a through hole. As the sampling belt is unfolded, when the sampling cavity is at different water levels, the second telescopic part drives the seal to separate from the opening of the sampling hole, and water at different water levels enters the sampling cavity through the sampling hole to complete the sampling, and then the sampling hole is sealed by the mutual adsorption between the seal and the annular magnetic sheet, and the counterweight ensures that the sampling belt remains vertical when unfolded in the water. After the sampling is completed, the driving component drives the sampling belt to reel in, and during the reeling of the sampling belt, the monitoring mechanism detects the sample in the sampling cavity; Most of the above-mentioned water quality monitoring devices have improved their structures. However, during the operation of the existing marine ranch water quality comprehensive detection and alarm structure, due to the large degree of water surface floating, it is unable to adaptively maintain its positioning environment according to the buoyancy of the water surface, resulting in a position range that is too large during long-term operation, and thus there are certain limitations in use. Summary of the invention

[0003] The purpose of the present invention is to provide a marine ranch water quality comprehensive detection alarm structure that is easy to locate, so as to solve the problem proposed in the above background technology that during the operation, due to the large degree of water surface floating, it is impossible to adaptively maintain its positioning environment according to the buoyancy of the water surface, resulting in a situation where the position range is too large during long-term operation, and thus there are certain usage limitations.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a comprehensive detection and alarm structure for water quality in a marine ranch that is easy to locate, comprising a prefabricated base, a prefabricated alarm and a preset anchor, wherein the prefabricated alarm is installed at the upper end of the prefabricated base, and the preset anchor is docked at the lower end of the prefabricated base, and the basic position of the prefabricated base is located by the preset anchor; The outer side of the prefabricated base is bonded with a built-in docking support transverse airbag, and the inner wall of the built-in docking support transverse airbag is fixedly connected with a fixed partition plate, the interior of the built-in docking support transverse airbag is divided by the fixed partition plate to form an air storage cavity, and the outer side of the prefabricated base is provided with an auxiliary pressure relief structure, and the auxiliary pressure relief structure is used to relieve the pressure of the contacting water flow force; An auxiliary support structure is arranged on the outer side of the lower end of the prefabricated base, and the auxiliary support structure is used to reversely support and position the prefabricated base in a stressed state.

[0005] Furthermore, the auxiliary pressure relief structure is provided with a docking guide rod, and the docking guide rod is nested and docked in the inner surface of the built-in docking support transverse airbag, and the lower end of the built-in docking support transverse airbag is fixedly connected with a return spring, and the return spring and the inner wall of the built-in docking support transverse airbag are docked with each other.

[0006] Furthermore, the inner wall of the built-in docking support transverse airbag and the end of the docking guide rod are both fixed with preset magnets, and the two preset magnets are arranged with the same magnetic poles facing each other.

[0007] Furthermore, a guide nesting piece is nested and installed on the outer side of the prefabricated base, and a movable docking rod is rotatably connected to the outer side of the guide nesting piece, and the movable docking rod is symmetrically distributed about the center point of the prefabricated base, and the outer side of the movable docking rod is docked with a preset docking protection float, and the preset docking protection float on the outer side of the movable docking rod corresponding to the angle will push the compressed one to form an angle movement when it is under pressure, and the movable docking rod will exert pressure on the contacting docking guide rod during the process of expanding and moving inwardly under the compressed angle.

[0008] Furthermore, the guide nested parts are symmetrically arranged about the outer side of the prefabricated base, and four groups of movable docking rods are distributed at equal angles on the outer ends of the guide nested parts, and the preset docking protection floating blocks on the outer sides of the movable docking rods are pushed to form angular movements when pressurized, and the docked guide nested parts are synchronously slidably supported along the outer side of the prefabricated base, and the supporting elastic force of the built-in docking support transverse airbags is cooperated to provide secondary auxiliary support.

[0009] Furthermore, the movable docking rod applies pressure to the docking guide rod in contact with it during the process of expanding and moving inwardly under pressure, so that the preset magnet parts with the same magnetic poles apply reverse force to push the docking guide rod outward; The movable docking rod applies pressure to the contacting built-in docking support transverse airbag during the process of the expansion angle moving inward.

[0010] Furthermore, the auxiliary support structure is provided with a gas delivery hose, and the gas delivery hose is arranged on the inner side of the built-in docking support transverse airbag, and the gas delivery hose runs through the interior of the prefabricated base; A transverse guide groove is provided on the inner side of the lower end of the prefabricated base, and a docking airbag is bonded to the inner side of the transverse guide groove, and the docking airbag is connected to the end of the gas hose, and a movable docking float is docked on the outer side of the docking airbag, and the end of the movable docking float is arranged inside the transverse guide groove.

[0011] Furthermore, during the process in which the built-in docking supporting lateral airbag is pressurized, air is supplied to the interior of the docking airbag through an air supply hose, so that the docking airbag expands and pushes the movable docking float on the outside to form a pushing structure, and the movable docking float is connected in reverse with the corresponding air storage chamber, so that the docking airbag expands and pushes the movable docking float on the outside to move outward, so that when the surface of the prefabricated base on one side contacts the water pressure driving force, it cooperates with the movable docking float on the other side to form a reverse supporting force.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The integrated water quality detection alarm structure for marine ranches that is easy to locate is provided with an auxiliary pressure relief structure. The equipment is arranged on the water surface, and the outer ends of the guide nesting parts on the outside thereof are provided with 4 groups of movable docking rods and preset docking protection floats at equal angles. When the preset docking protection floats on the outer sides of the movable docking rods at corresponding angles are under pressure, they will push the pressed ones to form angle activities. During the process of the movable docking rods expanding and moving inwards under pressure, the contacting docking guide rods are pressed, so that the preset magnet parts with the same magnetic poles apply reverse force to push the docking guide rods outwards, thereby providing auxiliary support for the inner sides of the two contacting angular movable docking rods to avoid excessive deformation under pressure. Furthermore, during the process of the expansion angle of the movable docking rod moving inward, it will simultaneously apply pressure to the built-in docking support transverse airbag in contact, and then cooperate with the supporting elastic force of the built-in docking support transverse airbag to perform secondary auxiliary support. Even if the floating degree of the water surface is large during the working process, it can also adaptively maintain its positioning environment according to the buoyancy of the water surface; Furthermore, an auxiliary supporting structure is provided. When the built-in docking supporting transverse airbag contacts the corresponding angle movable docking rod and deforms and moves under pressure, it supplies air to the interior of the reversely connected docking airbag through an air supply hose, so that the docking airbag expands and pushes the outer movable docking float to move outward. Then, when the surface of the prefabricated base on one side contacts the driving force of water pressure, it cooperates with the movable docking float on the other side to form a reverse supporting force, thereby positioning and supporting the overall equipment in a resistance-like manner, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of a half-cut three-dimensional structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the partially enlarged structure; Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the movable docking floating block of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the gas delivery hose of the present invention; Figure 6 It is a schematic diagram of a half-cut three-dimensional structure of a guide nesting member of the present invention; Figure 7 This is a schematic diagram of the preset anchoring three-dimensional structure of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the fixed partition plate of the present invention.

[0014] In the figure: 1. Prefabricated base; 2. Prefabricated alarm; 3. Preset anchoring; 4. Built-in docking support transverse airbag; 5. Fixed partition plate; 6. Accommodating air storage chamber; 7. Docking guide rod; 8. Reset spring; 9. Preset magnet part; 10. Guide nesting part; 11. Movable docking rod; 12. Preset docking protection float; 13. Gas supply hose; 14. Docking airbag; 15. Movable docking float; 16. Transverse guide groove. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] Example 1: Please refer to Figure 1-8 The present invention provides the following technical solutions: a comprehensive detection and alarm structure for water quality in a marine ranch that is easy to locate, comprising a prefabricated base 1, a prefabricated alarm 2, a preset anchor 3, a built-in docking support transverse airbag 4, a fixed partition plate 5, an air storage chamber 6, a docking guide rod 7, a reset spring 8, a preset magnet part 9, a guide nesting part 10, a movable docking rod 11, a preset docking protection float 12, a gas delivery hose 13, a docking airbag 14, a movable docking float 15 and a transverse guide groove 16; A prefabricated alarm 2 is installed at the upper end of the prefabricated base 1, and a preset anchor 3 is docked at the lower end of the prefabricated base 1, and the basic position of the prefabricated base 1 is positioned by the preset anchor 3; the outer side of the prefabricated base 1 is bonded with a built-in docking support transverse airbag 4, and the inner wall of the built-in docking support transverse airbag 4 is fixedly connected with a fixed partition plate 5, and the interior of the built-in docking support transverse airbag 4 is divided by the fixed partition plate 5 to form an air storage chamber 6, and an auxiliary pressure relief structure is arranged on the outer side of the prefabricated base 1, and the pressure relief treatment of the contacting water flow force is carried out by the auxiliary pressure relief structure; The auxiliary pressure relief structure is provided with a docking guide rod 7, and the docking guide rod 7 is nested and docked on the inner surface of the built-in docking support transverse airbag 4, and the lower end of the built-in docking support transverse airbag 4 is fixedly connected with a reset spring 8, and the reset spring 8 and the inner wall of the built-in docking support transverse airbag 4 are docked with each other. The inner wall of the built-in docking support transverse airbag 4 and the end of the docking guide rod 7 are both fixed with preset magnets 9, and the two preset magnets 9 are arranged with the same poles facing each other. The outer side of the prefabricated base 1 is nested with a guide nesting part 10, and the outer side of the guide nesting part 10 is rotatably connected with a movable docking rod 11, and the movable docking rod 11 is symmetrically distributed about the center point of the prefabricated base 1, and the outer side of the movable docking rod 11 is docked with a preset docking protection float 12.

[0017] The guide nesting part 10 is symmetrically arranged with respect to the outer side of the prefabricated base 1, and 4 groups of movable docking rods 11 are distributed at equal angles at the outer end of the guide nesting part 10, and the preset docking protection floating block 12 on the outer side of the movable docking rod 11 is pushed to form an angle when it is pressed, and the docked guide nesting part 10 is synchronously supported by sliding along the outer side of the prefabricated base 1. When the movable docking rod 11 is pressed, the angle expands and moves inward, and the docking guide rod 7 in contact is pressed, so that the preset magnet part 9 with the same magnetic pole applies reverse force to push the docking guide rod 7 outward; when the movable docking rod 11 expands and moves inward, the built-in docking support transverse airbag 4 in contact is pressed. Four groups of movable docking rods 11 and preset docking protection floats 12 are equiangularly distributed on the outer end of the outer guide nesting part 10. When the preset docking protection float 12 on the outer side of the movable docking rod 11 with the corresponding angle is compressed, it will push the compressed docking rod 11 to form an angle movement. In the process of the movable docking rod 11 expanding and moving inward under the pressure, it will pressurize the docking guide rod 7 in contact, so that the preset magnet part 9 with the same magnetic pole will push the docking guide rod 7 outward through the reverse force, thereby auxiliary support is provided to the inner side of the movable docking rod 11 with two angles in contact. In the process of the movable docking rod 11 expanding and moving inward at an angle, it will simultaneously pressurize the contacting built-in docking support transverse airbag 4, thereby cooperating with the supporting elastic force of the built-in docking support transverse airbag 4 to perform secondary auxiliary support. Even if the water surface floats to a large extent during operation, it can also adaptively maintain its positioning environment according to the buoyancy of the water surface. Even if the water surface floats to a large extent due to harsh environment, it will cooperate with its supporting structure to stably perform basic range positioning. Embodiment 2:

[0018] On the basis of the first embodiment, an auxiliary support structure is also disclosed, and its specific structure is as follows: An auxiliary support structure is arranged on the outer side of the lower end of the prefabricated base 1, and the auxiliary support structure is used to support and position the prefabricated base 1 in a stressed state in reverse direction.

[0019] The auxiliary supporting structure is provided with a gas hose 13, and the gas hose 13 is arranged on the inner side of the built-in docking supporting transverse airbag 4, and the gas hose 13 passes through the interior of the prefabricated base 1; a transverse guide groove 16 is opened on the inner side of the lower end of the prefabricated base 1, and a docking airbag 14 is bonded and connected to the inner side of the transverse guide groove 16, and the docking airbag 14 and the end of the gas hose 13 are connected to each other, and a movable docking float 15 is docked on the outer side of the docking airbag 14, and the end of the movable docking float 15 is arranged inside the transverse guide groove 16. In the process of the built-in docking support transverse airbag 4 being pressurized, air is supplied to the interior of the docking airbag 14 through the air supply hose 13, so that the docking airbag 14 expands and pushes the outer movable docking float 15 to form a pushing structure, and the movable docking float 15 is connected in reverse to the air storage chamber 6. In the process of the built-in docking support transverse airbag 4 contacting the corresponding angle movable docking rod 11 to deform and move under pressure, it will supply air to the interior of the reversely connected docking airbag 14 through the air supply hose 13, so that the docking airbag 14 expands and pushes the outer movable docking float 15 to move outward, so that when the surface of the prefabricated base 1 on one side contacts the water pressure driving force, the movable docking float 15 connected to the dock on the other side forms a reverse supporting force, thereby performing a positioning and supporting treatment on the overall equipment in a resistance manner, and in the process of assisting the pressure relief with the support structure, the movable docking float 15 that cooperates with the reverse support stably performs the supporting and anti-drifting working state on the bottom water surface.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A marine ranch water quality comprehensive detection alarm structure that is easy to locate, comprising a prefabricated base (1), a prefabricated alarm (2) and a preset anchor (3), wherein the prefabricated alarm (2) is installed at the upper end of the prefabricated base (1), and the preset anchor (3) is docked at the lower end of the prefabricated base (1), and the basic position of the prefabricated base (1) is located by the preset anchor (3); Features: The outer side of the prefabricated base (1) is bonded with a built-in docking support transverse airbag (4), and the inner wall of the built-in docking support transverse airbag (4) is fixedly connected with a fixed partition plate (5), the interior of the built-in docking support transverse airbag (4) is divided by the fixed partition plate (5) to form an air storage chamber (6), and the outer side of the prefabricated base (1) is provided with an auxiliary pressure relief structure, and the auxiliary pressure relief structure is used to relieve the pressure of the contacting water flow force; An auxiliary support structure is provided on the outer side of the lower end of the prefabricated base (1), and the auxiliary support structure is used to reversely support and position the prefabricated base (1) in a stressed state.

2. The integrated detection and alarm structure for water quality in a marine ranch that is easy to locate according to claim 1 is characterized by: The auxiliary pressure relief structure is provided with a docking guide rod (7), and the docking guide rod (7) is nested and docked on the inner surface of the built-in docking support transverse airbag (4), and the lower end of the built-in docking support transverse airbag (4) is fixedly connected to a return spring (8), and the return spring (8) and the inner wall of the built-in docking support transverse airbag (4) are docked with each other.

3. The integrated detection and alarm structure for water quality in a marine ranch that is easy to locate according to claim 2 is characterized by: Preset magnets (9) are fixed to the inner wall of the built-in docking support transverse airbag (4) and the end of the docking guide rod (7), and the two preset magnets (9) are arranged with the same magnetic poles facing each other.

4. The integrated detection and alarm structure for water quality in a marine ranch that is easy to locate according to claim 3 is characterized by: A guide nesting piece (10) is nested and installed on the outer side of the prefabricated base (1), and a movable docking rod (11) is rotatably connected to the outer side of the guide nesting piece (10), and the movable docking rod (11) is symmetrically distributed about the center point of the prefabricated base (1), and a preset docking protection float (12) is docked on the outer side of the movable docking rod (11).

5. The integrated detection and alarm structure for water quality in a marine ranch that is easy to locate according to claim 4 is characterized by: The guide nesting pieces (10) are symmetrically arranged with respect to the outer side of the prefabricated base (1), and four groups of movable docking rods (11) are distributed at equal angles on the outer ends of the guide nesting pieces (10), and when the preset docking protection floating blocks (12) on the outer sides of the movable docking rods (11) are pressed, they are pushed to form angular movements, and the docked guide nesting pieces (10) are synchronously supported by sliding along the outer side of the prefabricated base (1).

6. The integrated detection and alarm structure for water quality in a marine ranch that is easy to locate according to claim 5 is characterized by: The movable docking rod (11) applies pressure to the docking guide rod (7) in contact with the movable docking rod (11) during the process of expanding and moving inwardly at an angle under pressure, so that the movable docking rod (11) applies pressure to the docking guide rod (7) in contact with the movable docking rod (11), so that the movable docking rod (11) pushes the docking guide rod (7) outwardly by applying a reverse force through the preset magnet member (9) with the same magnetic pole; During the process of the movable docking rod (11) expanding and moving inward at an angle, pressure is applied to the built-in docking support transverse airbag (4) in contact therewith.

7. The integrated detection and alarm structure for water quality in a marine ranch that is easy to locate according to claim 4 is characterized by: The auxiliary support structure is provided with an air delivery hose (13), and the air delivery hose (13) is arranged on the inner side of the built-in docking support transverse airbag (4), and the air delivery hose (13) penetrates along the interior of the prefabricated base (1); A transverse guide groove (16) is provided on the inner side of the lower end of the prefabricated base (1), and a docking airbag (14) is bonded to the inner side of the transverse guide groove (16), and the docking airbag (14) and the end of the air delivery hose (13) are connected to each other, and a movable docking float (15) is docked on the outer side of the docking airbag (14), and the end of the movable docking float (15) is arranged inside the transverse guide groove (16).

8. The integrated detection and alarm structure for water quality in a marine ranch that is easy to locate according to claim 7 is characterized by: During the process of the built-in docking support transverse airbag (4) being pressurized, air is supplied to the interior of the docking airbag (14) through the air delivery hose (13), so that the docking airbag (14) expands and pushes the outer movable docking float (15) to form a pushing structure, and the movable docking float (15) is connected to the air storage chamber (6) in the opposite direction.

Citation Information

Patent Citations

  • Intelligent water quality detection and alarm device and method

    CN108010281A

  • Underground water detection alarm device

    CN112903941A

  • Automatic online monitoring water quality alarm

    CN113917098A