An eel pond water body anoxia alarm device

Abstract

The utility model relates to a kind of eel pond water body anoxia alarm device, comprising: alarm and dissolved oxygen detection mechanism, the first float block, second float block, third float block of dissolved oxygen detection mechanism are sequentially head-to-tail connection by first connecting rod, second connecting rod and third connecting rod, and vertically with first detection rod, second detection rod and third detection rod are respectively set to form three-dimensional detection frame, first oxygen sensor, second oxygen sensor and third oxygen sensor can stably three-dimensional array on first detection rod, second detection rod and third detection rod, different depth of different area of eel pond dissolved oxygen concentration can be detected in all directions, avoid the detection error caused by local environment difference, improve the accuracy and comprehensiveness of detection, when the oxygen-dissolving amount is lower than set value, the controller of alarm can control loudspeaker and flashing light work to carry out alarm, it is convenient for aquaculture personnel to timely manage the breeding environment of eel, guarantee the survival environment of eel.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture equipment technology, and in particular to an alarm device for oxygen deficiency in eel pond water. Background Technology

[0002] Eels are a type of fish with unique biological characteristics and economic value. They belong to the order Anguilliformes in the class Osteichthyes and are migratory fish that descend into rivers. They have a slender, snake-like body with a smooth, scaleless surface covered in mucus. Eels are rich in high-quality protein, unsaturated fatty acids, and various vitamins, which are of great significance for maintaining normal physiological functions, enhancing immunity, and promoting growth and development. They have extremely high nutritional value.

[0003] Eel farming primarily utilizes pond culture, requiring strict control of various environmental factors. Insufficient dissolved oxygen in the water is a major cause of reduced eel production and mortality. Therefore, an oxygen deficiency alarm device is needed to monitor dissolved oxygen levels in the water in real time. When dissolved oxygen levels fall below a set value, an alarm should be triggered to activate aerators and ensure the eels' survival. However, existing oxygen deficiency alarm devices typically fix sensors directly to the pond wall. This single-point method only reflects the oxygen content of a localized area and cannot capture the vertical stratification and horizontal differences in dissolved oxygen within the pond. It has a large blind spot and cannot effectively reflect the overall dissolved oxygen content of the pond. Utility Model Content

[0004] Therefore, it is necessary to provide an alarm device for oxygen deficiency in eel pond water.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A water oxygen deficiency alarm device for eel ponds, comprising:

[0006] An alarm device, wherein a controller is provided inside the alarm device, and a speaker and a flashing light are respectively provided on the alarm device, and the controller is electrically connected to the speaker and the flashing light respectively;

[0007] A dissolved oxygen detection mechanism includes: a first float, a second float, a third float, a first connecting rod, a second connecting rod, and a third connecting rod. The first float, the second float, and the third float are connected end-to-end in sequence via the first connecting rod, the second connecting rod, and the third connecting rod. A first detection rod is vertically arranged on the first float, a second detection rod is vertically arranged on the second float, and a third detection rod is vertically arranged on the third float.

[0008] A first oxygen sensor, a second oxygen sensor, and a third oxygen sensor are sequentially and spaced apart on the first detection rod, the second detection rod, and the third detection rod, and the first oxygen sensor, the second oxygen sensor, and the third oxygen sensor are all electrically connected to the controller.

[0009] In one embodiment, the first end of the first connecting rod is rotatably connected to the first end of the first float, the second end of the first connecting rod is rotatably connected to the first end of the second float, the first end of the second connecting rod is rotatably connected to the second end of the second float, the second end of the second connecting rod is rotatably connected to the first end of the third float, the first end of the third connecting rod is rotatably connected to the second end of the third float, and the second end of the third connecting rod is rotatably connected to the second end of the first float. The first connecting rod, the second connecting rod, and the third connecting rod are all telescopic rods.

[0010] In one embodiment, the first connecting rod includes: a first telescopic rod and a second telescopic rod, the first end of the first telescopic rod is rotatably connected to the first end of the first float, the second end of the first telescopic rod has a first telescopic cavity, the first end of the second telescopic rod is inserted into the first telescopic cavity, and the second end of the second telescopic rod is rotatably connected to the first end of the second float.

[0011] In one embodiment, the second connecting rod includes a third telescopic rod and a fourth telescopic rod. The first end of the third telescopic rod is rotatably connected to the second end of the second float. A second telescopic cavity is formed on the second end of the third telescopic rod. The first end of the fourth telescopic rod is inserted into the second telescopic cavity. The second end of the fourth telescopic rod is rotatably connected to the first end of the third float.

[0012] In one embodiment, the third connecting rod includes a fifth telescopic rod and a sixth telescopic rod. The first end of the fifth telescopic rod is rotatably connected to the second end of the third float. A third telescopic cavity is formed on the second end of the fifth telescopic rod. The first end of the sixth telescopic rod is inserted into the third telescopic cavity. The second end of the sixth telescopic rod is rotatably connected to the second end of the first float.

[0013] In one embodiment, the eel pond water oxygen deficiency alarm device further includes: a first bolt, a first threaded hole is provided on the side wall of the first telescopic cavity, the first end of the first bolt is screwed into the first threaded hole, and the first end of the first bolt movably abuts against the outer surface of the second telescopic rod.

[0014] In one embodiment, the eel pond water oxygen deficiency alarm device further includes: a second bolt, a second threaded hole is provided on the side wall of the second telescopic cavity, the first end of the second bolt is screwed into the second threaded hole, and the first end of the second bolt movably abuts against the outer surface of the fourth telescopic rod.

[0015] In one embodiment, the eel pond water oxygen deficiency alarm device further includes: a third bolt, a third threaded hole is provided on the side wall of the third telescopic cavity, the first end of the third bolt is screwed into the third threaded hole, and the first end of the third bolt movably abuts against the outer surface of the sixth telescopic rod.

[0016] In one embodiment, the first float has a first mounting hole and the first detection rod is fixed in the first mounting hole; the second float has a second mounting hole and the second detection rod is fixed in the second mounting hole; and the third float has a third mounting hole and the third detection rod is fixed in the third mounting hole.

[0017] In one embodiment, the first detection rod has a first receiving cavity that communicates with the first mounting hole, the second detection rod has a second receiving cavity that communicates with the second mounting hole, and the third detection rod has a third receiving cavity that communicates with the third mounting hole.

[0018] The beneficial effects of this utility model are as follows: The eel pond water oxygen deficiency alarm device provided by this utility model has a dissolved oxygen detection mechanism. The first, second, and third floats of the dissolved oxygen detection mechanism are connected end to end by a first, second, and third connecting rod. The first, second, and third detection rods are vertically arranged on the first, second, and third floats, forming a three-dimensional detection frame. This allows the first, second, and third oxygen sensors to be stably arrayed in three dimensions on the first, second, and third detection rods, enabling comprehensive detection of dissolved oxygen concentration at different depths in different areas of the eel pond. This avoids detection errors caused by local environmental differences, improves the accuracy and comprehensiveness of the detection, and can measure dissolved oxygen concentration in real time and accurately. When the dissolved oxygen level is lower than the set value, the alarm controller can control the speaker and flashing light to sound an alarm, facilitating timely management of the eel farming environment by aquaculture personnel and ensuring the survival environment of the eels. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of an eel pond water oxygen deficiency alarm device according to one embodiment;

[0021] Figure 2 This is a schematic diagram of the structure of an oxygen deficiency alarm device for an eel pond, as shown in one embodiment.

[0022] In the attached diagram, 10 is an oxygen deficiency alarm device for the eel pond; 100 is an alarm; 110 is a loudspeaker; 120 is a flashing light; 200 is a dissolved oxygen detection mechanism; 210 is a first float; 220 is a second float; 230 is a third float; 310 is a first connecting rod; 311 is a first telescopic rod; 312 is a second telescopic rod; 320 is a second connecting rod; 321 is a third telescopic rod; 322 is a fourth telescopic rod; 330 is a third connecting rod; 331 is a fifth telescopic rod; 332 is a sixth telescopic rod; 410 is a first detection rod; 420 is a second detection rod; 430 is a third detection rod; 510 is a first oxygen sensor; 520 is a second oxygen sensor; and 530 is a third oxygen sensor. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0024] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0025] In one embodiment, such as Figure 1As shown, an oxygen deficiency alarm device 10 for eel ponds includes: an alarm 100 and a dissolved oxygen detection mechanism 200. The alarm 100 has a controller, and a speaker 110 and a flashing light 120 are respectively installed on the alarm 100. The controller is electrically connected to the speaker 110 and the flashing light 120. The dissolved oxygen detection mechanism 200 includes: a first float 210, a second float 220, a third float 230, a first connecting rod 310, a second connecting rod 320, and a third connecting rod 330. The first float 210, the second float 220, and the third float 230 are connected by the first connecting rod 310. The second connecting rod 320 and the third connecting rod 330 are connected end to end in sequence. A first detection rod 410 is vertically arranged on the first float 210, a second detection rod 420 is vertically arranged on the second float 220, and a third detection rod 430 is vertically arranged on the third float 230. A first oxygen sensor 510, a second oxygen sensor 520, and a third oxygen sensor 530 are arranged sequentially and at intervals on the first detection rod 410, the second detection rod 420, and the third detection rod 430. The first oxygen sensor 510, the second oxygen sensor 520, and the third oxygen sensor 530 are all electrically connected to the controller.

[0026] In this embodiment, the alarm 100 is fixed to the outer wall of the eel pond or spaced out on the outer side of the eel pond. A dissolved oxygen detection mechanism 200 is provided, with its first float 210, second float 220, and third float 230 connected end-to-end by a first connecting rod 310, second connecting rod 320, and third connecting rod 330, forming a triangular structure. This allows it to float stably in the eel pond, less susceptible to displacement due to water flow or other factors. Furthermore, a first detection rod 410, second detection rod 420, and third detection rod 430 are vertically arranged on the first float 210, second float 220, and third float 230, respectively. These detection rods are located in the water of the eel pond, forming a three-dimensional structure. The detection frame allows the first oxygen sensor 510, the second oxygen sensor 520, and the third oxygen sensor 530 to be stably arrayed in three dimensions on the first detection rod 410, the second detection rod 420, and the third detection rod 430. These three oxygen sensors are dissolved oxygen sensors, capable of comprehensively detecting dissolved oxygen concentrations at different depths in different areas of the eel pond. This avoids detection errors caused by local environmental differences, improving the accuracy and comprehensiveness of the detection. It can measure dissolved oxygen concentration in real time and accurately. When the dissolved oxygen level is lower than a set value, the controller of the alarm 100 can control the speaker 110 and the flashing light 120 to sound an alarm, facilitating timely management of the eel farming environment by aquaculture personnel and ensuring the eel's survival.

[0027] In one embodiment, the first end of the first connecting rod 310 is rotatably connected to the first end of the first float 210, the second end of the first connecting rod 310 is rotatably connected to the first end of the second float 220, the first end of the second connecting rod 320 is rotatably connected to the second end of the second float 220, the second end of the second connecting rod 320 is rotatably connected to the first end of the third float 230, the first end of the third connecting rod 330 is rotatably connected to the second end of the third float 230, and the second end of the third connecting rod 330 is rotatably connected to the second end of the first float 210. The first connecting rod 310, the second connecting rod 320, and the third connecting rod 330 are all telescopic rods. Specifically, each of the first float 210, second float 220, and third float 230 has two rotating columns spaced apart. The two ends of the first connecting rod 310, second connecting rod 320, and third connecting rod 330 are horizontally rotatably mounted on these rotating columns, enabling horizontal rotation of the first float 210, second float 220, and third float 230. By configuring the first connecting rod 310, second connecting rod 320, and third connecting rod 330 as telescopic rods, the first connecting rod 310, second connecting rod 320, and third connecting rod 230 can be adjusted... The length adjustment of the third connecting rod 330 adjusts the distance between the first float 210, the second float 220, and the third float 230, thereby adjusting the position of the first oxygen sensor 510, the second oxygen sensor 520, and the third oxygen sensor 530 on the first detection rod 410, the second detection rod 420, and the third detection rod 430 in the eel pond water. This allows the first oxygen sensor 510, the second oxygen sensor 520, and the third oxygen sensor 530 to be more evenly distributed in the eel pond water, adapting to eel ponds of different sizes.

[0028] In one embodiment, such as Figure 1 and Figure 2 As shown, the first connecting rod 310 includes a first telescopic rod 311 and a second telescopic rod 312. The first end of the first telescopic rod 311 is rotatably connected to the first end of the first float 210. A first telescopic cavity is formed on the second end of the first telescopic rod 311. The first end of the second telescopic rod 312 is inserted into the first telescopic cavity, and the second end of the second telescopic rod 312 is rotatably connected to the first end of the second float 220. Specifically, the first telescopic rod 311 is horizontally rotatably mounted on the first float 210, and the second telescopic rod 312 is horizontally rotatably mounted on the second float 220. The second telescopic rod 312 is inserted into the first telescopic cavity and movably abuts against the side wall of the first telescopic cavity. By adjusting the length of the second telescopic rod 312 inserted into the first telescopic cavity, the length of the first connecting rod 310 can be adjusted, thereby adjusting the distance between the first float 210 and the second float 220.

[0029] In one embodiment, such as Figure 1 and Figure 2 As shown, the second connecting rod 320 includes a third telescopic rod 321 and a fourth telescopic rod 322. The first end of the third telescopic rod 321 is rotatably connected to the second end of the second float 220. A second telescopic cavity is formed on the second end of the third telescopic rod 321. The first end of the fourth telescopic rod 322 is inserted into the second telescopic cavity, and the second end of the fourth telescopic rod 322 is rotatably connected to the first end of the third float 230. Specifically, the third telescopic rod 321 is horizontally rotatably mounted on the second float 220, and the fourth telescopic rod 322 is horizontally rotatably mounted on the third float 230. The fourth telescopic rod 322 is inserted into the second telescopic cavity and movably abuts against the side wall of the second telescopic cavity. By adjusting the length of the fourth telescopic rod 322 inserted into the second telescopic cavity, the length of the second connecting rod 320 can be adjusted, thereby adjusting the distance between the second float 220 and the third float 230.

[0030] In one embodiment, such as Figure 1 and Figure 2 As shown, the third connecting rod 330 includes a fifth telescopic rod 331 and a sixth telescopic rod 332. The first end of the fifth telescopic rod 331 is rotatably connected to the second end of the third float 230. A third telescopic cavity is formed on the second end of the fifth telescopic rod 331. The first end of the sixth telescopic rod 332 is inserted into the third telescopic cavity, and the second end of the sixth telescopic rod 332 is rotatably connected to the second end of the first float 210. Specifically, the fifth telescopic rod 331 is horizontally rotatably mounted on the third float 230, and the sixth telescopic rod 332 is horizontally rotatably mounted on the first float 210. The sixth telescopic rod 332 is inserted into the third telescopic cavity and movably abuts against the side wall of the third telescopic cavity. By adjusting the length of the sixth telescopic rod 332 inserted into the third telescopic cavity, the length of the third connecting rod 330 can be adjusted, thereby adjusting the distance between the third float 230 and the first float 210.

[0031] In one embodiment, the eel pond oxygen deficiency alarm device 10 further includes: a first bolt, wherein a first threaded hole is provided on the side wall of the first telescopic cavity, the first end of the first bolt is screwed into the first threaded hole, and the first end of the first bolt movably abuts against the outer surface of the second telescopic rod 312. Specifically, the opening direction of the first threaded hole is perpendicular to the opening direction of the first telescopic cavity. By screwing the first end of the first bolt into the first threaded hole and abutting against the outer surface of the second telescopic rod 312, the position of the second telescopic rod 312 in the first telescopic cavity can be better restricted, so that the position between the first telescopic rod 311 and the second telescopic rod 312 remains relatively fixed, and the required length of the first connecting rod 310 can be maintained more stably.

[0032] In one embodiment, the eel pond oxygen deficiency alarm device 10 further includes a second bolt. A second threaded hole is provided on the side wall of the second telescopic cavity. The first end of the second bolt is screwed into the second threaded hole, and the first end of the second bolt movably abuts against the outer surface of the fourth telescopic rod 322. Specifically, the opening direction of the second threaded hole is perpendicular to the opening direction of the second telescopic cavity. By screwing the first end of the second bolt into the second threaded hole and abutting against the outer surface of the fourth telescopic rod 322, the position of the fourth telescopic rod 322 within the second telescopic cavity can be better restricted, so that the position between the third telescopic rod 321 and the fourth telescopic rod 322 remains relatively fixed, and the required length of the second connecting rod 320 can be maintained more stably.

[0033] In one embodiment, the eel pond oxygen deficiency alarm device 10 further includes a third bolt. A third threaded hole is provided on the side wall of the third telescopic cavity. The first end of the third bolt is screwed into the third threaded hole, and the first end of the third bolt movably abuts against the outer surface of the sixth telescopic rod 332. Specifically, the opening direction of the third threaded hole is perpendicular to the opening direction of the third telescopic cavity. By screwing the first end of the third bolt into the third threaded hole and abutting against the outer surface of the sixth telescopic rod 332, the position of the sixth telescopic rod 332 within the third telescopic cavity can be better restricted, so that the position between the fifth telescopic rod 331 and the sixth telescopic rod 332 remains relatively fixed, and the required length of the third connecting rod 330 can be maintained more stably.

[0034] In one embodiment, the first float 210 has a first mounting hole, and the first detection rod 410 is fixed in the first mounting hole. The second float 220 has a second mounting hole, and the second detection rod 420 is fixed in the second mounting hole. The third float 230 has a third mounting hole, and the third detection rod 430 is fixed in the third mounting hole. The first detection rod 410 has a first receiving cavity that communicates with the first mounting hole. The second detection rod 420 has a second receiving cavity that communicates with the second mounting hole. The third detection rod 430 has a third receiving cavity that communicates with the third mounting hole. Specifically, the first detection rod 410 is fixed to the first float 210 by being inserted into the first mounting hole, the second detection rod 420 is fixed to the second float 220 by being inserted into the second mounting hole, and the third detection rod 430 is fixed to the third float 230 by being inserted into the third mounting hole. The wires used to connect the first oxygen sensor 510, the second oxygen sensor 520, and the third oxygen sensor 530 can enter the first receiving cavity, the second receiving cavity, and the third receiving cavity respectively through the first mounting hole, the second mounting hole, and the third mounting hole, which can effectively realize the electrical connection of the first oxygen sensor 510, the second oxygen sensor 520, and the third oxygen sensor 530 installed on the first detection rod 410, the second detection rod 420, and the third detection rod 430.

[0035] Compared with the prior art, the present invention has at least the following advantages:

[0036] This utility model provides an oxygen deficiency alarm device for eel ponds. It incorporates a dissolved oxygen detection mechanism. The first, second, and third floats of this mechanism are connected end-to-end by a first, second, and third connecting rod. A first, second, and third detection rod are vertically mounted on each of the floats, forming a three-dimensional detection frame. This allows the first, second, and third oxygen sensors to be stably arrayed in a three-dimensional array on the detection rods, enabling comprehensive detection of dissolved oxygen concentrations at different depths in different areas of the eel pond. This avoids detection errors caused by local environmental differences, improving the accuracy and comprehensiveness of the detection. It can measure dissolved oxygen concentration in real time and accurately. When the dissolved oxygen level falls below a set value, the alarm controller activates a speaker and flashing lights to sound an alarm, facilitating timely management of the eel farming environment by aquaculture personnel and ensuring the eel's survival.

[0037] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An alarm device for oxygen deficiency in eel pond water, characterized in that, include: An alarm device, wherein a controller is provided inside the alarm device, and a speaker and a flashing light are respectively provided on the alarm device, and the controller is electrically connected to the speaker and the flashing light respectively; A dissolved oxygen detection mechanism includes: a first float, a second float, a third float, a first connecting rod, a second connecting rod, and a third connecting rod. The first float, the second float, and the third float are connected end-to-end in sequence via the first connecting rod, the second connecting rod, and the third connecting rod. A first detection rod is vertically arranged on the first float, a second detection rod is vertically arranged on the second float, and a third detection rod is vertically arranged on the third float. A first oxygen sensor, a second oxygen sensor, and a third oxygen sensor are sequentially and spaced apart on the first detection rod, the second detection rod, and the third detection rod, and the first oxygen sensor, the second oxygen sensor, and the third oxygen sensor are all electrically connected to the controller.

2. The eel pond water oxygen deficiency alarm device according to claim 1, characterized in that, The first end of the first connecting rod is rotatably connected to the first end of the first float, the second end of the first connecting rod is rotatably connected to the first end of the second float, the first end of the second connecting rod is rotatably connected to the second end of the second float, the second end of the second connecting rod is rotatably connected to the first end of the third float, the first end of the third connecting rod is rotatably connected to the second end of the third float, and the second end of the third connecting rod is rotatably connected to the second end of the first float. The first connecting rod, the second connecting rod, and the third connecting rod are all telescopic rods.

3. The eel pond water oxygen deficiency alarm device according to claim 2, characterized in that, The first connecting rod includes: a first telescopic rod and a second telescopic rod. The first end of the first telescopic rod is rotatably connected to the first end of the first float. The second end of the first telescopic rod has a first telescopic cavity. The first end of the second telescopic rod is inserted into the first telescopic cavity. The second end of the second telescopic rod is rotatably connected to the first end of the second float.

4. The eel pond water oxygen deficiency alarm device according to claim 3, characterized in that, The second connecting rod includes a third telescopic rod and a fourth telescopic rod. The first end of the third telescopic rod is rotatably connected to the second end of the second float. A second telescopic cavity is provided on the second end of the third telescopic rod. The first end of the fourth telescopic rod is inserted into the second telescopic cavity. The second end of the fourth telescopic rod is rotatably connected to the first end of the third float.

5. The eel pond water oxygen deficiency alarm device according to claim 4, characterized in that, The third connecting rod includes a fifth telescopic rod and a sixth telescopic rod. The first end of the fifth telescopic rod is rotatably connected to the second end of the third float. A third telescopic cavity is provided on the second end of the fifth telescopic rod. The first end of the sixth telescopic rod is inserted into the third telescopic cavity. The second end of the sixth telescopic rod is rotatably connected to the second end of the first float.

6. The eel pond water oxygen deficiency alarm device according to claim 3, characterized in that, Also includes: The first bolt has a first threaded hole on the side wall of the first telescopic cavity. The first end of the first bolt is screwed into the first threaded hole, and the first end of the first bolt moves against the outer surface of the second telescopic rod.

7. The eel pond water oxygen deficiency alarm device according to claim 4, characterized in that, Also includes: The second bolt has a second threaded hole on the side wall of the second telescopic cavity. The first end of the second bolt is screwed into the second threaded hole, and the first end of the second bolt moves against the outer surface of the fourth telescopic rod.

8. The eel pond water oxygen deficiency alarm device according to claim 5, characterized in that, Also includes: The third bolt has a third threaded hole on the side wall of the third telescopic cavity. The first end of the third bolt is screwed into the third threaded hole, and the first end of the third bolt moves against the outer surface of the sixth telescopic rod.

9. The eel pond water oxygen deficiency alarm device according to claim 1, characterized in that, The first float has a first mounting hole, and the first detection rod is fixed in the first mounting hole. The second float has a second mounting hole, and the second detection rod is fixed in the second mounting hole. The third float has a third mounting hole, and the third detection rod is fixed in the third mounting hole.

10. The eel pond water oxygen deficiency alarm device according to claim 9, characterized in that, The first detection rod has a first receiving cavity, which is connected to the first mounting hole. The second detection rod has a second receiving cavity, which is connected to the second mounting hole. The third detection rod has a third receiving cavity, which is connected to the third mounting hole.

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