Acoustic experimental fish automatic fixing device

Abstract

The application discloses an automatic fish fixing device for acoustic experiments, and relates to the technical field of fishery acoustics, comprising a circular track rotating mechanism, a longitudinal fixing mechanism, a transverse fixing mechanism, a fish body, a front fish hook, a tail fish hook and a middle fish hook. The circular track rotating mechanism, the longitudinal fixing mechanism and the transverse fixing mechanism are arranged to realize the fixing and arrangement of fish targets in different directions in acoustic experiments, to quantitatively analyze the influence of fish targets in different directions on a sonar system and the detection effect, and to correct the correlation, so that the interference of experimental equipment on the acoustic experiment in the fixing and arrangement process of the fish targets can be avoided, and the detection effect is completely caused by the fish targets; for the dark underwater environment, the quantitative fixing and arrangement operation of the fish targets is simple, and the scientific nature of the underwater acoustic experiment can be ensured.

Description

Technical Field

[0001] This invention relates to the field of acoustic application technology in fisheries, specifically to an automatic fish-fixing device for acoustic experiments. Background Technology

[0002] Acoustic experiments using sonar systems to target fish are fundamental to fisheries acoustic research, and the underwater fixed deployment of fish targets plays a crucial role in these experiments, providing guidance for the design and evaluation of fisheries sonar systems. Currently, the fixed deployment techniques for fish targets in sonar acoustic experiments mainly employ the following two operational methods: (1) Operator-controlled fixed deployment technology: This technology mainly uses fishing line and T-shaped frame to fix and control fish targets. The fish targets are fixed on the horizontal end of the T-shaped frame, and the operator moves the fish targets by controlling the vertical end of the T-shaped frame.

[0003] (2) Fish target free deployment technology: In underwater acoustic experiments, suitable fish target acoustic segments are selected from long-term acoustic experiments for analysis by the sonar system.

[0004] Currently, the operator-manual fixation and control technology has the following main disadvantages: (1) Long time consumption and low experimental efficiency: This technology mainly uses fishing line to fix fish targets on the horizontal end of a T-shaped frame, and then uses fishing line to fix fish targets underwater. The time cost of fixing the fishing line is huge, and the smooth surface of fish makes the fixing efficiency low. (2) T-shaped frame echo interference: The T-shaped frame is the main tool for fixing and controlling fish targets. At the same time, the T-shaped frame has strong reflection interference, which has a great impact on the acoustic detection of fish targets, especially the study of the intensity of fish targets.

[0005] The free-form deployment technology for fish targets has drawbacks such as long deployment time, low efficiency of acoustic experiments, and inability to analyze the characteristics of fish targets.

[0006] Therefore, there is an urgent need for an automatic acoustic fish restraint device to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to provide an automatic fixation device for acoustic experimental fish to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: An automatic fish-fixing device for acoustic experiments includes: a circular rail rotating mechanism, a longitudinal fixing mechanism, a transverse fixing mechanism, and a fish body. The head of the fish body is connected to a front hook, the tail of the fish body is connected to a tail hook, the top of the middle part of the fish body is connected to a middle hook, the middle hook is connected to the transverse fixing mechanism, the transverse fixing mechanism is connected to the top of the longitudinal fixing mechanism, the longitudinal fixing mechanism is provided in two sets, the bottom of the longitudinal fixing mechanism is connected to the circular rail rotating mechanism, one set of the longitudinal fixing mechanism is connected to the front hook, and the other set of the longitudinal fixing mechanism is connected to the tail hook.

[0009] As a further aspect of the present invention: the circular track rotation mechanism includes: Lower ring; A limiting block is connected to the top of the lower ring, and several sets of the limiting blocks are provided; An upper ring, wherein the upper ring is provided with a slot, and the slot is rotatably engaged with a limiting block; Circular grooves are provided on the upper and lower circular rings; A rotating ball is disposed in a circular groove, and several sets of the rotating ball are provided to provide support for the upper circular ring; The upright connector is connected to the upper ring. There are two sets of upright connectors, which are arranged symmetrically.

[0010] As a further aspect of the present invention: the longitudinal fixing mechanism includes: The uprights are provided in two sets, and the bottom ends of the two sets of uprights are respectively connected to the two sets of upright connecting parts; The slide rail is installed on the upright; A lifting controller 1 is connected to the top of the pole; two sets of the lifting controller 1 are provided on a set of the poles. The slider is slidably connected to the slide rail. A connecting rope is provided, with its two ends connected to two sets of lifting controllers, and the connecting rope is also connected to the slider. The second connecting rope is provided in two sets. One end of the second connecting rope is connected to the slider, the other end of one set of the second connecting rope is connected to the front hook, and the other end of the second connecting rope is connected to the tail hook.

[0011] As a further aspect of the present invention: the lateral fixing mechanism includes: The horizontal bar is connected at both ends to the tops of the two sets of vertical poles; The second lifting controller is connected to the horizontal bar; Connecting rope three, one end is connected to lifting controller two, and the other end is connected to the middle fish hook.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. Quantitative and fixed deployment of fish targets in underwater acoustic experiments facilitates scientific analysis of the influencing factors of sonar systems and provides reasonable numerical interpretations; 2. This invention has a sophisticated structure, is simple to operate, and can quickly achieve the fixed deployment of fish targets in underwater acoustic experiments; 3. This invention eliminates interference from the experimental setup and improves the observation performance of the sonar system; 4. It is composed of standardized and conventional parts, making it easy to disassemble and manufacture, and low in cost; 5. The overall modular design allows the device to be moved and expanded, and it can be used in indoor experimental pools as well as in outdoor pool environments, completely simulating the external underwater environment of a sonar system. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of an automatic fish-fixing device for acoustic experiments according to an embodiment of the present invention.

[0014] Figure 2 This is a schematic diagram of the circular rail rotation mechanism in an embodiment of the present invention.

[0015] Figure 3 This is a cross-sectional view of the circular rail rotating mechanism in an embodiment of the present invention.

[0016] Figure 4 This is a schematic diagram of the longitudinal fixing mechanism in an embodiment of the present invention.

[0017] Figure 5 This is a schematic diagram of the transverse fixing mechanism in an embodiment of the present invention.

[0018] Figure 6 This is a schematic diagram of the structure of the fish body in an embodiment of the present invention.

[0019] In the diagram: 1. Circular rail rotation mechanism; 11. Lower ring; 12. Upper ring; 13. Slot; 14. Limiting block; 15. Circular groove; 16. Rotating ball; 17. Upright pole connector; 2. Longitudinal fixing mechanism; 21. Upright pole; 22. Slide rail; 23. Lifting controller one; 24. Slider; 25. Connecting rope one; 26. Connecting rope two; 3. Lateral fixing mechanism; 31. Crossbar; 32. Lifting controller two; 33. Connecting rope three; 4. Fish body; 51. Front hook; 52. Tail hook; 53. Middle hook. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the embodiments of this invention, please refer to Figures 1 to 6 An automatic fish fixation device for acoustic experiments includes: a circular rail rotating mechanism 1, a longitudinal fixing mechanism 2, a transverse fixing mechanism 3, and a fish body 4. The head of the fish body 4 is connected to a front hook 51, the tail of the fish body 4 is connected to a tail hook 52, the top of the middle part of the fish body 4 is connected to a middle hook 53, the middle hook 53 is connected to the transverse fixing mechanism 3, the transverse fixing mechanism 3 is connected to the top of the longitudinal fixing mechanism 2, the longitudinal fixing mechanism 2 is provided in two sets, the bottom of the longitudinal fixing mechanism 2 is connected to the circular rail rotating mechanism 1, one set of the longitudinal fixing mechanism 2 is connected to the front hook 51, and the other set of the longitudinal fixing mechanism 2 is connected to the tail hook 52.

[0022] The longitudinal fixing mechanism 2 is connected to the front hook 51 and the tail hook 52, and the transverse fixing mechanism 3 is connected to the middle hook 53, thereby fixing the fish body 4. The longitudinal fixing mechanism 2 and the transverse fixing mechanism 3 work together to adjust the height of the fish body 4, and the circular rail rotating mechanism 1 can adjust the angle of the fish body 4.

[0023] As one embodiment of the present invention, please refer to Figures 1 to 3 The circular track rotating mechanism 1 includes: Lower ring 11; The limiting block 14 is connected to the top of the lower ring 11, and the limiting block 14 is provided in several groups; The upper ring 12 is provided with a slot 13, which is rotatably engaged with the limiting block 14; A circular groove 15 is provided on the upper circular ring 11 and the lower circular ring 12; A rotating ball 16 is disposed in a circular groove 15. Several sets of the rotating ball 16 are provided to provide support for the upper circular ring 12. The pole connector 17 is connected to the upper ring 12. There are two sets of pole connectors 17, which are arranged symmetrically.

[0024] The limiting block 14 is rotatably engaged in the slot 13, and the rotating ball 16 is located in the circular groove 15. The limiting block 14 limits the upper ring 12, allowing the upper ring 12 to rotate on the lower ring 11, thereby adjusting the angle of the fish body 4. The rotating ball 16 provides support for the upper ring 12, and the limiting block 14 provides rotation direction guidance for the upper ring 12.

[0025] As one embodiment of the present invention, please refer to Figure 1 and Figure 4 The longitudinal fixing mechanism 2 includes: The upright 21 is provided in two sets, and the bottom ends of the two sets of upright 21 are respectively connected to the two sets of upright connecting parts 17; Slide rail 22 is mounted on upright 21; A lifting controller 23 is connected to the top of the upright 21, and two sets of the lifting controllers 23 are provided on one set of the upright 21. Slider 24 is slidably connected to slide rail 22; Connecting rope 25, with its two ends connected to two sets of lifting controllers 23 respectively, and connecting rope 25 connected to slider 24; The second connecting rope 26 is provided in two sets. One end of the second connecting rope 26 is connected to the slider 24, the other end of one set of the second connecting rope 26 is connected to the front hook 51, and the other end of the second connecting rope 26 is connected to the tail hook 52.

[0026] The connecting rope 26 is connected to the front hook 51 and the rear hook 52 to provide a horizontal force to the fish body 4 and fix the fish body 4. The two sets of lifting controllers 23 cooperate with each other to wind or loosen the connecting rope 25, thereby driving the slider 24 to move longitudinally, thereby adjusting the height of the fish body 4.

[0027] As one embodiment of the present invention, please refer to Figure 1 and Figure 5 The lateral fixing mechanism 3 includes: The horizontal bar 31 is connected at both ends to the top ends of the two sets of vertical bars 21 respectively; The lifting controller 32 is connected to the crossbar 31; Connecting rope 33, one end is connected to lifting controller 2 32, and the other end is connected to the middle fish hook 53.

[0028] Connect the connecting rope 33 to the middle hook 53, and the lifting controller 2 32 will work to wind or unwind the connecting rope 33, thereby adjusting the height of the fish body 4.

[0029] The working principle of this invention is as follows: the connecting rope 26 is connected to the front hook 51 and the rear hook 52 to provide a horizontal force to the fish body 4 and fix the fish body 4. The two sets of lifting controllers 23 cooperate with each other to wind or unwind the connecting rope 25, thereby driving the slider 24 to move longitudinally, thereby adjusting the height of the fish body 4. Connect the connecting rope 33 to the middle hook 53, and the lifting controller 2 32 will work to wind or loosen the connecting rope 33, thereby adjusting the height of the fish body 4. Rotating the upper ring 12 allows for adjustment of the placement angle of the fish body 4.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic fish-fixing device for acoustic experiments, characterized in that, include: The system comprises a circular rail rotating mechanism, a longitudinal fixing mechanism, a transverse fixing mechanism, and a fish body. The head of the fish body is connected to the front hook, the tail of the fish body is connected to the tail hook, the top of the middle part of the fish body is connected to the middle hook, the middle hook is connected to the transverse fixing mechanism, the transverse fixing mechanism is connected to the top of the longitudinal fixing mechanism, and the longitudinal fixing mechanism is provided in two sets. The bottom of the longitudinal fixing mechanism is connected to the circular rail rotating mechanism, one set of the longitudinal fixing mechanism is connected to the front hook, and the other set of the longitudinal fixing mechanism is connected to the tail hook. The circular track rotating mechanism includes: Lower ring; A limiting block is connected to the top of the lower ring, and several sets of the limiting blocks are provided; An upper ring, wherein the upper ring is provided with a slot, and the slot is rotatably engaged with a limiting block; Circular grooves are provided on the upper and lower circular rings; A rotating ball is disposed in a circular groove, and several sets of the rotating ball are provided to provide support for the upper circular ring; The upright connector is connected to the upper ring. There are two sets of the upright connector, which are symmetrically arranged. The longitudinal fixing mechanism includes: The uprights are provided in two sets, and the bottom ends of the two sets of uprights are respectively connected to the two sets of upright connecting parts; The slide rail is installed on the upright; A lifting controller 1 is connected to the top of the pole; two sets of the lifting controller 1 are provided on a set of the poles. The slider is slidably connected to the slide rail. A connecting rope is provided, with its two ends connected to two sets of lifting controllers, and the connecting rope is also connected to the slider. The second connecting rope is provided in two sets. One end of the second connecting rope is connected to the slider, the other end of one set of the second connecting rope is connected to the front hook, and the other end of the second connecting rope is connected to the tail hook.

2. The automatic fish-fixing device for acoustic experiments according to claim 1, characterized in that, The horizontal fixing mechanism includes: a horizontal bar, with both ends connected to the tops of the two sets of uprights respectively; a second lifting controller, connected to the horizontal bar; and a third connecting rope, with one end connected to the second lifting controller and the other end connected to the middle fishhook.

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