A corrosion-resistant protective structure for fiber optic grating sensor probes used in aquaculture

Abstract

This utility model relates to the field of aquaculture technology; and discloses a corrosion-resistant protection structure for a fiber optic grating sensor probe used in aquaculture, including an optical fiber. An anti-corrosion structure is provided on the outer surface of one end of the optical fiber, and a quick-release structure is provided on the outer surfaces of the optical fiber and the anti-corrosion structure near each other. This utility model, by rotating the insertion rod, aligns the first and second locking blocks with the moving groove and rectangular groove inside the first and second locking slots, respectively. At this time, the insertion rod can be moved outward from inside the first and second insertion slots, thereby allowing disassembly of the optical fiber and the anti-corrosion structure. This facilitates cleaning of the anti-corrosion structure, enabling its future use and improving the practicality of the equipment to a certain extent.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology; more specifically, it relates to a corrosion-resistant protection structure for a fiber optic grating sensor probe used in aquaculture. Background Technology

[0002] A fiber Bragg grating (FBG) sensor probe is a high-precision sensor based on fiber Bragg grating technology. It senses changes in physical quantities such as temperature, strain, and pressure by measuring changes in the wavelength reflected by the grating. In aquaculture, this probe can be used to monitor water quality parameters in real time, such as water temperature, pH value, and dissolved oxygen concentration, helping farmers to promptly understand changes in the aquatic environment, prevent disease outbreaks, and improve aquaculture efficiency. It has advantages such as resistance to electromagnetic interference, corrosion resistance, and good long-term stability, making it suitable for use in complex aquaculture environments.

[0003] Fiber Bragg grating (FBG) sensors are used in aquaculture to monitor water quality parameters, but they are susceptible to corrosion due to prolonged exposure to water. A corrosion-resistant protection structure encapsulates the probe with corrosion-resistant materials, isolating it from water erosion, extending its lifespan, and ensuring data accuracy. This structure effectively resists corrosion from salt, microorganisms, and other corrosive factors, ensuring stable probe operation, improving aquaculture management efficiency, reducing equipment maintenance costs, and is of great significance for intelligent monitoring in aquaculture.

[0004] Currently, existing anti-corrosion structures for aquaculture suffer from several drawbacks. Firstly, existing equipment typically uses stainless steel to protect the internal optical fibers. However, most of these devices lack internal cushioning, making them susceptible to damage from vibration during use. This reduces the equipment's practicality. Secondly, the surface of most existing equipment requires cleaning, necessitating disassembly. Since most devices use threaded connections, disassembly is inconvenient, further complicating the process. Therefore, a corrosion-resistant protection structure for fiber optic grating sensor probes in aquaculture is urgently needed to address these issues. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a corrosion-resistant protection structure for a fiber optic grating sensor probe used in aquaculture, so as to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: a corrosion-resistant protection structure for a fiber optic grating sensor probe used in aquaculture, comprising: an optical fiber, wherein an anti-corrosion structure is provided on the outer surface of one end of the optical fiber, and a quick-release structure is provided on the outer surface of the optical fiber and the anti-corrosion structure at their respective ends; the anti-corrosion structure includes a first barrier layer, a second barrier layer and a buffer layer; the quick-release structure includes a first connecting block, a placement groove, a first insertion groove, a moving groove, a first locking groove, an insertion rod, a first locking block, a second locking block, a second connecting block, a second insertion groove, a second locking groove, a movable groove, a clamping block and a spring.

[0007] Preferably, the outer surface of one end of the first barrier layer is sleeved on the outer surface of one end of the optical fiber, and a second barrier layer is fixedly connected to the inner wall surface of the first barrier layer, and a buffer layer is fixedly connected to the inner wall surface of the second barrier layer. This design can better protect the optical fiber inside the corrosion-resistant structure through the cooperation of the first barrier layer, the second barrier layer and the buffer layer.

[0008] Preferably, the first barrier layer is made of stainless steel, the second barrier layer is made of nickel, and the buffer layer is made of silicone. This design improves the service life of the corrosion-resistant structure by utilizing the good corrosion resistance and high strength of the first barrier layer itself.

[0009] Preferably, the first connecting block is provided in two sets, and the two sets of the first connecting block are fixedly connected to the outer surface of the upper and lower ends of one end of the optical fiber. The inner surface of the other end of the two sets of the first connecting block is provided with a placement groove, and the inner wall surface of the placement groove is provided with a first insertion groove. The inner wall surface of the bottom wall surface of the first insertion groove is provided with a moving groove. The inner wall surface of one end of the first insertion groove is provided with a first engaging groove. An insertion rod is inserted into the placement groove, and a first engaging block is fixedly connected to the middle position of the bottom surface of the insertion rod. A second engaging block is fixedly connected to the surface of one end of the insertion rod. The second connecting block is provided in two sets, and the two sets of the second connecting block are respectively fixedly connected to the outer surface of the upper and lower ends of one end of the first barrier layer. The inner surface of one end of the outer surface of the two sets of the second connecting block is provided with a second insertion groove, and the inner wall surface of one end of the second insertion groove is provided with a second engaging groove. The inner wall surface of one end of the second engaging groove is provided with a moving groove. A clamping block is engaged inside the moving groove, and a spring is provided inside the moving groove. This design allows the insertion rod to move inside the moving groove.

[0010] Preferably, a sealing plug is fixedly connected to the outer surface of the other end of the insertion rod, and the sealing plug is made of rubber. The internal dimensions of the placement groove are adapted to the external dimensions of the sealing plug. The external dimensions of the first locking block and the second locking block are adapted to the internal dimensions of the moving groove. A rectangular groove is formed on the bottom wall surface of the second insertion groove. The external dimensions of the second locking block are adapted to the internal dimensions of the rectangular groove. The external dimensions of the first locking block are adapted to the internal dimensions of the first locking groove. The external dimensions of the second locking block are adapted to the internal dimensions of the second locking groove. The external dimensions of the insertion rod are adapted to the internal dimensions of the first insertion groove and the second insertion groove. This design makes the insertion rod more stable when moving inside the first insertion groove or the second insertion groove.

[0011] Preferably, the two ends of the spring abut against the inner wall surface of the movable groove and the surface of one side of the abutting block, respectively. This design allows the abutting block to automatically reset after moving inside the movable groove.

[0012] The technical effects and advantages of this utility model are as follows: The first barrier layer has good strength and corrosion resistance, which can improve the service life of the anti-corrosion structure. The second barrier layer has good corrosion resistance and isolation properties, which can prevent external moisture from entering the interior of the anti-corrosion structure. It can also prevent the interior of the anti-corrosion structure from losing its anti-corrosion ability after the first barrier layer is damaged, thus preventing damage to the optical fiber. Furthermore, the buffer layer has good elasticity and gas and electricity isolation properties, which can buffer the impact on the anti-corrosion structure, thereby preventing damage to the optical fiber inside the anti-corrosion structure. This improves the practicality of the equipment to a certain extent. By rotating the insertion rod, the first and second locking blocks are aligned with the positions of the moving slot and rectangular slot inside the first and second locking grooves, respectively. At this time, the insertion rod can be moved outward inside the first and second insertion grooves, thereby allowing the optical fiber to be disassembled from the anti-corrosion structure. This facilitates the cleaning of the anti-corrosion structure and its subsequent use, improving the practicality of the equipment to a certain extent. Moreover, its overall structure is simple and reasonable in design, highly practical, and easy to promote and apply. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional exploded view of the corrosion-resistant structure of this utility model.

[0015] Figure 3 This is a three-dimensional exploded view of the quick-release structure of this utility model.

[0016] Figure 4 This utility model Figure 3 Enlarged diagram of point A in the middle.

[0017] Figure 5 This utility model Figure 3 Enlarged diagram of point B in the middle.

[0018] The attached figures are labeled as follows: 1. Optical fiber; 2. Corrosion-resistant structure; 21. First barrier layer; 22. Second barrier layer; 23. Buffer layer; 3. Quick-release structure; 31. First connecting block; 32. Installation slot; 33. First insertion slot; 34. Moving slot; 35. First locking slot; 36. Insertion rod; 37. First locking block; 38. Second locking block; 39. Second connecting block; 310. Second insertion slot; 311. Second locking slot; 312. Movable slot; 313. Pressing block; 314. Spring. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The aquaculture involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example 1, as Figures 1-5 As shown, this embodiment proposes a corrosion protection structure for a fiber optic grating sensor probe used in aquaculture, including: an optical fiber 1, an anti-corrosion structure 2 on the outer surface of one end of the optical fiber 1, and a quick-release structure 3 on the outer surface of the optical fiber 1 and the anti-corrosion structure 2 that are close to each other. The anti-corrosion structure 2 includes a first barrier layer 21, a second barrier layer 22, and a buffer layer 23. The outer surface of one end of the first barrier layer 21 is sleeved on the outer surface of one end of the optical fiber 1, and the second barrier layer 22 is fixedly connected to the inner wall surface of the first barrier layer 21, and the buffer layer 23 is fixedly connected to the inner wall surface of the second barrier layer 22. The first barrier layer 21 is made of stainless steel, the second barrier layer 22 is made of nickel, and the buffer layer 23 is made of silicone. In this embodiment, the design improves the service life of the anti-corrosion structure 2 through the good strength and corrosion resistance of the first barrier layer 21, and prevents external moisture from entering the interior of the anti-corrosion structure 2 through the good corrosion resistance and isolation properties of the second barrier layer 22. It also prevents the interior of the anti-corrosion structure 2 from losing its anti-corrosion ability after the first barrier layer 21 is damaged, thus preventing damage to the optical fiber 1. Furthermore, the good elasticity and gas and electricity isolation properties of the buffer layer 23 can buffer the impact on the anti-corrosion structure 2, thereby preventing damage to the optical fiber 1 caused by external impact.

[0021] Example 2, as Figures 3-5As shown, based on the same concept as the above embodiments, this embodiment also proposes: the quick-release structure 3 includes a first connecting block 31, a placement groove 32, a first insertion groove 33, a moving groove 34, a first engaging groove 35, an insertion rod 36, a first engaging block 37, a second engaging block 38, a second connecting block 39, a second insertion groove 310, a second engaging groove 311, a movable groove 312, a clamping block 313, and a spring 314. Two sets of first connecting blocks 31 are provided, and the two sets of first connecting blocks 31 are fixedly connected to the outer surfaces of the upper and lower ends of one end of the optical fiber 1. Placement grooves 32 are opened inside the outer surfaces of the other ends of the two sets of first connecting blocks 31, and the inner wall surface of the placement groove 32 is provided with a first insertion groove 33. The inner wall surface of the first insertion groove 33 is also provided with a first insertion groove 33. The first insertion slot 33 has a movable groove 34. A first engaging groove 35 is formed on the inner wall surface of one end of the first insertion slot 33. An insertion rod 36 is inserted into the interior of the placement slot 32. A first engaging block 37 is fixedly connected to the middle position of the bottom surface of the insertion rod 36. A second engaging block 38 is fixedly connected to the surface of one end of the insertion rod 36. Two sets of second connecting blocks 39 are provided, and the two sets of second connecting blocks 39 are respectively fixedly connected to the outer surfaces of the upper and lower ends of one end of the first barrier layer 21. A second insertion slot 310 is formed inside the outer surface of one end of each set of second connecting blocks 39. A second engaging groove 311 is formed on the inner wall surface of one end of the second insertion slot 310. A movable groove 312 is formed on the inner wall surface of one end of the second engaging groove 311. The internal engagement of the insertion rod 36 is connected to a retaining block 313, and a spring 314 is provided inside the movable groove 312. A sealing plug is fixedly connected to the outer surface of the other end of the insertion rod 36, and the sealing plug is made of rubber. The internal dimensions of the placement groove 32 are adapted to the external dimensions of the sealing plug. The external dimensions of the first engagement block 37 and the second engagement block 38 are adapted to the internal dimensions of the movable groove 34. A rectangular groove is formed on the bottom wall surface of the second insertion groove 310. The external dimensions of the second engagement block 38 are adapted to the internal dimensions of the rectangular groove. The external dimensions of the first engagement block 37 are adapted to the internal dimensions of the first engagement groove 35. The external dimensions of the second engagement block 38 are adapted to the internal dimensions of the second engagement groove 311. The external dimensions of the insertion rod 36 are adapted to the internal dimensions of the first insertion groove 311. The internal dimensions of slot 33 and the second insertion slot 310 are adapted to each other. This design allows the insertion rod 36 to be inserted into the first insertion slot 33 and the second insertion slot 310, preventing external water from entering the connection between the optical fiber 1 and the anti-corrosion structure 2 through the placement slot 32, thereby improving the airtightness of the connection between the optical fiber 1 and the anti-corrosion structure 2. This design also allows the first locking block 37 and the second locking block 38 to move within the movable slot 34, and the second locking block 38 to move within the rectangular slot. Furthermore, this design allows the first locking block 37 and the second locking block 38 to respectively engage within the first locking slot 35 and the second locking slot 311, thereby connecting the optical fiber 1 and the anti-corrosion structure 2.This design also makes the insertion rod 36 more stable when moving within the first insertion slot 33 and the second insertion slot 310; The two ends of the spring 314 abut against the inner wall surface of the movable groove 312 and the surface of one side of the abutting block 313, respectively. This design allows the abutting block 313 to reset itself after moving inside the movable groove 312. Thus, the abutting block 313 abuts against the outer surface of one end of the insertion rod 36 to position the first locking block 37 and the second locking block 38 inside the first locking groove 35 and the second locking groove 311, respectively. Fiber 1 is a product that can be purchased directly on the market. Its principle, connection method and control method are existing technologies that are well known to those skilled in the art, so they will not be described in detail here. The two sets of insertion rods 36 in this application, as well as all movable parts, require regular cleaning and maintenance, including but not limited to dust removal and lubrication.

[0022] Working principle: When the equipment is in use, by aligning the positions of the two sets of first connecting blocks 31 with the positions of the two sets of second connecting blocks 39, the insertion rod 36 can be inserted into the placement groove 32, and the second engaging block 38 and the first engaging block 37 are sequentially inserted into the moving groove 34, and the second engaging block 38 is inserted into the rectangular groove, thereby inserting the second engaging block 38 into the second engaging groove 311. At this time, the pressing block 313 is squeezed and housed in the movable groove 312, and the sealing plug is inserted into the placement groove 32. At the same time, the insertion rod 36 can be rotated, so that the first The locking block 37 and the second locking block 38 are respectively locked inside the first locking groove 35 and the second locking groove 311. The spring 314 can press the first locking block 37 and the second locking block 38 against each other inside the first locking groove 35 and the second locking groove 311 through its own elasticity, thereby completing the connection between the optical fiber 1 and the anti-corrosion structure 2. The above process can be reversed to disassemble the anti-corrosion structure 2. The anti-corrosion resistance and safety of the anti-corrosion structure 2 can be improved by the cooperation between the first barrier layer 21, the second barrier layer 22 and the buffer layer 23. The above is the complete working principle of this utility model.

[0023] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A corrosion-resistant protection structure for a fiber optic grating sensor probe used in aquaculture, characterized in that, include: An optical fiber (1) is provided with an anti-corrosion structure (2) on the outer surface of one end of the optical fiber (1), and a quick-release structure (3) is provided on the outer surface of the optical fiber (1) and the anti-corrosion structure (2) at their respective close ends. The corrosion-resistant structure (2) includes a first barrier layer (21), a second barrier layer (22), and a buffer layer (23). The quick-release structure (3) includes a first connecting block (31), a placement groove (32), a first insertion groove (33), a moving groove (34), a first engaging groove (35), an insertion rod (36), a first engaging block (37), a second engaging block (38), a second connecting block (39), a second insertion groove (310), a second engaging groove (311), a movable groove (312), a clamping block (313), and a spring (314).

2. The anti-corrosion protection structure for a fiber optic grating sensor probe used in aquaculture according to claim 1, characterized in that: The outer surface of one end of the first barrier layer (21) is sleeved on the outer surface of one end of the optical fiber (1), and the inner wall surface of the first barrier layer (21) is fixedly connected to the second barrier layer (22), and the inner wall surface of the second barrier layer (22) is fixedly connected to the buffer layer (23).

3. The anti-corrosion protection structure for a fiber optic grating sensor probe used in aquaculture according to claim 2, characterized in that: The first barrier layer (21) is made of stainless steel, the second barrier layer (22) is made of nickel, and the buffer layer (23) is made of silicone.

4. The anti-corrosion protection structure for a fiber optic grating sensor probe used in aquaculture according to claim 1, characterized in that: Two sets of the first connecting blocks (31) are provided, and the two sets of the first connecting blocks (31) are fixedly connected to the outer surfaces of the upper and lower ends of one end of the optical fiber (1). The inner surface of the other end of the two sets of the first connecting blocks (31) is provided with a placement groove (32), and the inner wall surface of the placement groove (32) is provided with a first insertion groove (33). The inner surface of the bottom wall surface of the first insertion groove (33) is provided with a moving groove (34). The inner wall surface of one end of the first insertion groove (33) is provided with a first engaging groove (35). An insertion rod (36) is inserted into the placement groove (32), and a first engaging block (37) is fixedly connected to the middle position of the bottom surface of the insertion rod (36). A second engaging block (38) is fixedly connected to the surface of one end of the rod (36). Two sets of the second connecting blocks (39) are provided, and the two sets of the second connecting blocks (39) are respectively fixedly connected to the outer surfaces of the upper and lower ends of one end of the first barrier layer (21). A second insertion groove (310) is opened inside the outer surface of one end of the two sets of the second connecting blocks (39). A second engaging groove (311) is opened on the inner wall surface of one end of the second insertion groove (310). A movable groove (312) is opened on the inner wall surface of one end of the second engaging groove (311). A clamping block (313) is engaged inside the movable groove (312). A spring (314) is provided inside the movable groove (312).

5. The anti-corrosion protection structure for a fiber optic grating sensor probe used in aquaculture according to claim 4, characterized in that: A sealing plug is fixedly connected to the outer surface of the other end of the insertion rod (36), and the sealing plug is made of rubber. The internal dimensions of the placement groove (32) are adapted to the external dimensions of the sealing plug. The external dimensions of the first locking block (37) and the second locking block (38) are adapted to the internal dimensions of the moving groove (34). A rectangular groove is opened on the bottom wall surface of the second insertion groove (310). The external dimensions of the second locking block (38) are adapted to the internal dimensions of the rectangular groove. The external dimensions of the first locking block (37) are adapted to the internal dimensions of the first locking groove (35). The external dimensions of the second locking block (38) are adapted to the internal dimensions of the second locking groove (311). The external dimensions of the insertion rod (36) are adapted to the internal dimensions of the first insertion groove (33) and the second insertion groove (310).

6. The anti-corrosion protection structure for a fiber optic grating sensor probe used in aquaculture according to claim 4, characterized in that: The two ends of the spring (314) abut against the inner wall surface of the movable groove (312) and the surface of one side of the pressing block (313), respectively.

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