Sound fish luring device capable of being used in deep water

Abstract

The utility model discloses a sound fish luring device capable of being used in deep water. The device comprises a floating body, a hydrophone and a low-frequency transmitting transducer, wherein the hydrophone and the low-frequency transmitting transducer are connected with the floating body through cables; a power supply, a memory and the like are arranged in the floating body. The hydrophone collects fish ingestion sound and stores the fish ingestion sound in the memory, and the fish ingestion sound is transmitted out by the low-frequency transmitting transducer to lure fish after being processed by the signal output module and the power amplifier. The low-frequency transmitting transducer is provided with a shell, a telescopic air bag and a vibrating membrane; the air bag and the vibration cabin balance internal pressure and external pressure through an air guide pipe, a copper coil is wound outside a vibration membrane extension cavity and matched with a permanent magnet to generate a magnetic field to enable the vibration membrane to produce sound, and the frequency band of 10 Hz to 3 kHz can be covered. The device has a recording mode and a playing mode, is connected and controlled through mobile phone APP Bluetooth, can accurately trap different fishes, improves the fishery yield, has automatic pressure compensation to adapt to deep water, realizes small size and low cost through a single array element, has the sounding frequency far better than that of a traditional underwater horn, and has remarkable advantages.

Description

TECHNICAL FIELD

[0001] The utility model belongs to underwater fish luring technical field, concretely relates to a sound fish luring device for deep water. BACKGROUND

[0002] In order to improve the fishing and fishing efficiency, it is necessary to adopt certain fish luring technology, and the existing technology mainly realizes the luring of fish through light, smell and sound, and the three luring methods have advantages and disadvantages. Compared with the light and smell luring methods, the sound fish luring has the advantages of wide range and fast speed.

[0003] The prior art "electronic fish luring sinker" (95205830.8) provides a fish luring signal generating device that can emit light and fish feeding sound, and a large number of feeding sounds are solidified in the device and are played through a loudspeaker; the "electronic fish lurer" (97233505.6) uses a loudspeaker to emit continuous "pap, pap" sounds to lure fish; the "bionic fish lurer" (201520395900.0) uses a vibration sound generator to simulate the wing vibration of falling insects or the jumping of small shrimps in nature, and lures perch, topmouth gudgeon and other fish; the "portable sound lurer" (201120054915.2) uses an underwater loudspeaker to play music in the water to lure fish; the "active fish luring device based on sonar detection" (201910401423.7) can lure fish by emitting sound waves of different frequencies; the "acousto-optic visual fish lurer" (202111593617.5) also uses a loudspeaker to emit sound waves of different degrees to lure fish; the "acoustic fish luring device" (201110228178.8) can also emit sound wave signals through an underwater loudspeaker to lure fish; the "sound fish lurer" (201811570416.1) lures fish to feed by constantly simulating the sound of food falling into the water; the "horn structure for luring fish by domestication machine" (201220632282.3) realizes resonance by four horns emitting sound at the same time to improve the sound transmission effect.

[0004] Fish bury in the inner ear of the skull, can sense 2Hz~2800Hz sound waves, and the lateral line of fish can sense 10Hz~120Hz sound waves, fish can sense the fluid field and mechanical vibration generated by the pressure source or the object changing the flow rate and the wake vortex through the lateral line system, and then respond quickly to complete the behavior of predation or avoidance. The sensitive area of fish to sound is concentrated in the low frequency band, and it is difficult to produce a specific low frequency sound source in water. Most of the underwater loudspeakers currently available can only emit sound up to 80Hz underwater, and they are large in size and expensive; some military underwater loudspeakers have a working frequency of up to 10Hz, but the production cost is high and not suitable for individual amateur use. SUMMARY

[0005] To solve the above technical problems, the utility model provides a kind of fish luring device that can emit low-frequency acoustic signal, and the technical difficulties of underwater acoustic source sound emission, broadband sound emission difficulty under different water depth are solved by the device, and the sound simulation of multiple fish is realized.

[0006] The specific technical solutions are as follows:

[0007] A kind of acoustic fish luring device for deep water, the device includes float and underwater acoustic receiver for collecting fish feeding sound by being connected at the lower end of float through cable, characterized by,

[0008] The power supply, memory, communicator, signal output module and power amplifier are arranged in the float;

[0009] The fish feeding sound collected by the underwater acoustic receiver and stored in the memory is amplified by the power amplifier and transmitted by the low-frequency emission transducer underwater to implement acoustic fishing, and the communicator is connected with the control end by Bluetooth, to start the underwater acoustic receiver to record or play audio and collect or lure by the low-frequency emission transducer;

[0010] The low-frequency emission transducer is connected at the lower end of float through cable, including shell and telescopic air bag installed at the top of shell;

[0011] The shell is a hollow cavity structure, and the whole cavity is the vibration cabin of the device, one side of the vibration cabin is provided with an open mouth, a vibrating diaphragm is arranged at the open mouth, a vibrating diaphragm extension cavity is arranged at the inner end of the vibrating diaphragm, and a coil generating a magnetic field after being electrified is wound on the outer wall of the extension cavity; and a magnetic circuit fixing frame is further arranged on the outer periphery of the extension cavity, and a permanent magnet is fixedly installed on the magnetic circuit fixing frame to generate a magnetic field in the vibration cabin;

[0012] The telescopic air bag is arranged on the top of the shell and connected with the shell, and the air bag and the vibration cabin are connected through a gas guide pipe to maintain the pressure consistency between the outside of the shell and the inside of the vibration cabin underwater.

[0013] Further, the magnetic circuit fixing frame and the shell are connected to form an annular structure, and the annular groove in the middle is a mounting groove for mounting the permanent magnet.

[0014] Further, the vibrating diaphragm is fixed at the open mouth of the shell by screws, and the vibrating diaphragm and the shell part are provided with an "O" ring.

[0015] Further, the extension cavity is a hollow cylindrical structure, and the coil wound on the outer wall of the extension cavity is a copper coil.

[0016] Further, the copper coil is connected with the power supply wire, and the other end of the power supply wire is provided with a cable interface.

[0017] Further, the air guide pipe comprises a flexible air guide pipe and a rigid air guide pipe; one end of the flexible air guide pipe is connected with the telescopic air bag, the other end is connected with the rigid air guide pipe, the other end of the rigid air guide pipe is connected with the air inlet arranged on the shell, and the air in the telescopic air bag is discharged into the vibration cabin to maintain the pressure balance between the inside and the outside when the pressure is received.

[0018] Further, a plurality of strip-shaped permanent magnets are uniformly distributed in the extension cavity.

[0019] Further, the strip-shaped permanent magnets are pasted in the installation groove, and at least two strip-shaped permanent magnets are arranged.

[0020] An acoustic fish luring device for deep water, the low-frequency emitting transducer and the floating body are detachably connected through the cable, and the acoustic fish luring device further comprises a hydrophone for collecting audio signals.

[0021] The working principle of the acoustic fish luring device for deep water is as follows: when the device is used for working operation, two modes of recording audio signals and playing audio signals are included.

[0022] When the device is used for recording audio signals, the hydrophone (3) is connected to the end of the cable (2) and is put into water, the hydrophone is placed in water through the floating body (1), the communicator in the floating body (1) is connected to the mobile phone APP through Bluetooth, the mobile phone is selected to record the mode, the fish feeding sound in deep water is recorded through the hydrophone, and the audio signal is transmitted to the storage for storage.

[0023] When the device is used for playing audio signals, the low-frequency emitting transducer (4) is connected to the end of the cable (2) and is put into water, the mobile phone APP is connected to the floating body (1) through Bluetooth and is selected to play the mode, the mode is selected, the fish luring audio signal model to be played can be selected on the mobile phone, the self-recorded audio signal or the different fish sensitive audio signal stored in advance can be played, so that the fish is lured; in order to prolong the residence time of the fish group near the sound source, the fish bait can be put near the sound source.

[0024] When the low-frequency transmitting transducer (4) works, when put into water, the telescopic air bag and the diaphragm (6) are pressed by water pressure, the telescopic air bag is compressed to different degrees due to different water depth pressures, the compressed air enters the vibration cabin (51) through the air guide pipe (20), the air compression amount is automatically adjusted, the pressure in the cavity of the diaphragm (6) is consistent with the external water pressure, the large transmitting sound source level under deep water is ensured, and the problem of underwater sound emission is solved. The vibration cabin (51) and the diaphragm (6) are sealed through the O-shaped sealing ring (10) and are fixed on the shell (5) of the device through screw holes, the copper coil (8) is wound outside the wall of the extension cavity (52) of the diaphragm (6) and is connected with a power supply wire, the power supply wire is connected with the cable (2) and is provided with a cable (2) opening, so that the cable (2) on the floating body (1) can be detachably connected, the annular placement groove (54) formed between the magnetic circuit fixing frame (53) in the vibration cabin (51) and the shell (5) is provided with the permanent magnet (9), when the copper coil (8) passes through the alternating current to generate a magnetic field, the magnetic field interacts with the magnetic field of the permanent magnet (9), the copper coil (8) moves to drive the diaphragm (6) to vibrate, sound waves are emitted into water, a plurality of fish sensitive sound source signals can be simulated, the hearing frequency band of 10Hz-3kHz is covered, and miniaturization and low cost are realized.

[0025] Compared with the prior art, the low-frequency transmitting transducer of the utility model has the advantages of:

[0026] (1) The device can collect fish feeding sound and store it, amplify it through a power amplifier, and transmit it through a low-frequency transmitting transducer, can play different fish sensitive audio signals recorded or stored in advance, can accurately target the target fish for trapping, greatly improves the success rate and efficiency of fish trapping, and helps to increase the fishery yield.

[0027] (2) The low-frequency transmitting transducer can cover the hearing frequency band of 10Hz-3kHz, can simulate a plurality of fish sensitive sound source signals, can effectively attract different types of fish, and can widen the range and applicability of fish trapping.

[0028] (3) The device adopts a single array element, can realize small and low-cost design, and has an automatic pressure compensation device, and can meet the deep water use requirement.

[0029] (4) The transmitting transducer of the device can cover the hearing frequency band of 10Hz-3kHz which is sensitive to fish, far beyond the range of 80Hz of most underwater loudspeakers in underwater sound emission frequency. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structure diagram of the low-frequency transmitting transducer of the utility model;

[0031] Figure 2 It is an exploded view of the low-frequency transmitting transducer of the utility model;

[0032] Figure 3 This is an internal view of the present invention;

[0033] Figure 4 This is a schematic diagram of the external structure of this utility model;

[0034] Figure 5 This is a schematic diagram of the cable interface structure of this utility model;

[0035] Figure 6 This is a diagram showing the overall connection relationship of a sound-attracting fish device that can be used in deep water.

[0036] Figure 7 This is a schematic diagram of the collection device of a sound-attracting fish device that can be used in deep water, according to Embodiment 2 of this utility model;

[0037] Figure 8 This is a schematic diagram of the sound-generating device of a sound-attracting fish device that can be used in deep water, according to Embodiment 2 of this utility model.

[0038] Figure 9 This is the first usage state of this utility model;

[0039] Figure 10 This is the second usage state of this utility model;

[0040] In the diagram, 1-float; 2-cable; 3-hydrophone; 4-low-frequency transmitting transducer; 5-shell; 51-vibration chamber; 52-vibration diaphragm extension cavity; 53-magnetic circuit fixing frame; 54-slot; 55-cable interface; 56-pressure compensation port; 6-vibration diaphragm; 7-retractable airbag; 71-gas flow port; 8-coil; 9-permanent magnet; 10-"O" ring seal; 20-air duct; 201-flexible air duct; 202-rigid air duct. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0042] Example 1: A sound-attracting fish device that can be used in deep water, such as Figures 1-8 As shown, it mainly consists of a surface float 1, a cable 2, a hydrophone 3, and a low-frequency transmitting transducer 4. The surface float 1 is connected to the cable 2, and the cable 2 can be selectively connected to the hydrophone 3 or the low-frequency transmitting transducer 4, such as... Figure 6As shown, the water surface floating body 1 is built-in battery, memory, communication device, signal output module and power amplifier, communication device through Bluetooth and mobile phone APP connection, used by mobile phone APP control device to record audio or audio playback work, and audio signal transmission to the storage located in the floating body in the memory to save, but using the device for sound trapping fish, through the mobile phone APP selection play mode, and select the need to capture the fish feeding audio for playing, through the signal output module for data output, and through the power amplifier amplification feeding sound, and then through the low frequency emission transducer 4 placed in deep water in deep water for precise target fish for trapping.

[0043] The low frequency emission transducer 4 of the device is as shown in Figures 1-5 As shown, the vibration cabin 51 inside the shell 5 and the retractable air bag 7 mounted on the top of the shell 5 are communicated through the air guide pipe 20, the vibration cabin 51 inside the shell 5 is provided with the magnetic circuit fixing frame 53, the permanent magnet 9, the copper coil 8 and the vibration membrane 6 extension cavity 52 arranged at the rear end of the vibration membrane 6; the shell 5 is provided with the vibration membrane 6 at the open end; the retractable air bag 7 is bonded on the surface of the shell 5, and the air bag is provided with the gas flow port 71, the air guide pipe 20 communicates the gas flow port 71 and the pressure compensation port 56 on the shell 5, for conveying the gas in the retractable air bag 7 into the vibration cabin 51 when receiving water pressure.

[0044] The air guide pipe 20 includes a flexible air guide pipe 201 and a rigid air guide pipe 202, the flexible air guide pipe 201 is connected with the rigid air guide pipe 202, the other end of the flexible air guide pipe 201 is connected at the gas flow port 71 of the retractable air bag 7, the other end of the rigid air guide pipe 202 is connected with the pressure compensation port 56 on the shell 5, for when the low frequency emission transducer 4 is put into water, the retractable air bag and the vibration membrane 6 will be subjected to water pressure, the retractable air bag will be subjected to different pressure at different water depth, and the compression degree is also different, the compressed air can enter the inside of the vibration cabin 51 support through the air guide pipe 20, and the air compression amount will be automatically adjusted at different water depth, so that the inner cavity pressure of the vibration membrane 6 and the external water pressure are consistent, therefore the low frequency emission transducer 4 can also have larger emission sound source level in deep water, solving the problem that the speaker used in air cannot emit sound under water.

[0045] The vibration cabin 51 is a cavity in the shell 5, and a magnetic circuit fixing frame 53 is further arranged in the cavity. The magnetic circuit fixing frame 53 is a cylindrical fixing frame arranged around the vibration diaphragm 6. The magnetic circuit fixing frame 53 is connected with the shell 5 to form an annular structure. An annular groove formed in the middle of the annular structure is a placement groove 54 for mounting a plurality of permanent magnets 9. The plurality of strip-shaped permanent magnets 9 are uniformly fixed in the placement groove 54 and are arranged around the dynamic diaphragm extension cavity with the copper coil 8, so as to generate a magnetic field in the vibration cabin 51.

[0046] The vibration cabin 51 and the vibration diaphragm 6 in the shell 5 are water-tightly sealed by an "O" shaped sealing ring 10. The vibration diaphragm 6 is fixed by screws and is fixed at the open end of the shell 5. The copper coil 8 is wound outside the extension cavity of the vibration diaphragm 6 and is connected with a power supply wire. The power supply wire is connected with the cable 2, and the cable 2 is connected with the cable interface 55 at the lower end of the floating body 1. A plurality of strip-shaped permanent magnets 9 are mounted on the inner wall of the magnetic circuit fixing frame 53. When the copper coil 8 is supplied with an alternating current, a magnetic field is generated. Under the interaction of the magnetic field generated by the permanent magnets 9, the copper coil 8 moves to make the vibration diaphragm 6 vibrate, so that sound waves can be emitted into the water. Figures 1-9 The low-frequency emission transducer 4 shown can realize simulation of a plurality of fish sensitive sound source signals. The emission transducer can cover the hearing frequency band 10Hz-3kHz sensitive to fish and has a miniaturized design capability, which can meet the requirement of low-cost design.

[0047] Embodiment 2: A sound luring fish system for deep water, the system comprising a data acquisition module, a data storage module, a data output module and a power amplification module.

[0048] The data acquisition module comprises a hydrophone 3 connected at the end of the cable 2. The hydrophone 3 of the data acquisition module records the audio signals emitted by fish underwater to complete signal acquisition and transmission to the storage module.

[0049] The data storage module is a storage device arranged in the floating body 1 for recording the sound emitted by fish when feeding.

[0050] The power amplification module is a power amplifier for power amplifying the sound of fish feeding in the storage module and driving the sound emitting device to emit sound.

[0051] It should be understood that the above specific embodiments of the present application are only used for illustrative or explanatory purposes of the principles of the present application, and do not constitute a limitation on the present application. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. In addition, the appended claims of the present application are intended to cover all changes and modifications falling within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. An acoustic fish attracting device for deep water, the device comprising a floating body (1) and a hydrophone (3) for collecting fish feeding sound connected to the lower end of the floating body (1) through a cable (2), characterized in that, a power supply, a memory, a communication device, a signal output module and a power amplifier are arranged in the floating body (1); the signal output module amplifies the fish feeding sound collected by the hydrophone and stored in the memory through the power amplifier, and then transmits the sound out through the underwater low-frequency emission transducer to implement acoustic fishing; the communication device is connected with the control end through Bluetooth, and is used to start recording or playing audio by the hydrophone (3) and to generate and implement collection or fishing work through the low-frequency emission transducer (4); the low-frequency emission transducer (4) is connected to the lower end of the floating body (1) through the cable (2) and comprises a shell (5) and a telescopic air bag (7) installed on the top of the shell (5); the shell (5) is a hollow cavity structure, the whole cavity is a vibration cabin (51) of the device, one side of the vibration cabin (51) is provided with an open mouth, a vibrating diaphragm (6) is arranged at the open mouth, an extension cavity (52) of the vibrating diaphragm (6) is arranged at the inner end of the vibrating diaphragm (6), a coil (8) generating a magnetic field after being electrified is wound on the outer wall of the extension cavity, and a magnetic circuit fixing frame (53) is further arranged on the outer periphery of the extension cavity, a permanent magnet (9) is fixedly installed on the magnetic circuit fixing frame (53) to generate a magnetic field in the vibration cabin (51); the telescopic air bag (7) is arranged on the top of the shell (5) and connected with the shell (5), and a gas guide pipe (20) is connected between the air bag and the vibration cabin (51) for maintaining the pressure balance between the outside of the shell (5) and the inside of the vibration cabin (51) under water.

2. The acoustic fish-attracting device according to claim 1, wherein the magnetic circuit fixing frame (53) and the shell (5) are connected to form a ring structure, and a ring-shaped groove in the middle is a placement groove (54) for installing the permanent magnet (9).

3. The acoustic fish-attracting device according to claim 1, wherein the vibrating diaphragm (6) is fixed at the open mouth of the shell (5) through screws, and the vibrating diaphragm (6) and the shell (5) are provided with an "O" ring (10).

4. The acoustic fish-attracting device according to claim 1, wherein the extension cavity is a hollow cylindrical structure, and the coil (8) wound on the outer wall of the extension cavity is a copper coil.

5. The acoustic fish-attracting device according to claim 4, wherein the copper coil (8) is connected with a power supply line, and the other end of the power supply line is provided with a cable interface (55).

6. The acoustic fish-attracting device according to claim 1, wherein the gas guide pipe (20) comprises a flexible gas guide pipe (201) and a rigid gas guide pipe (202); one end of the flexible gas guide pipe (201) is connected with the telescopic air bag (7), the other end is connected with the rigid gas guide pipe (202), the other end of the rigid gas guide pipe (202) is connected with an air inlet arranged on the shell (5), and the air inlet is used to discharge the air in the telescopic air bag (7) into the vibration cabin (51) to maintain the pressure balance between the inside and outside when the pressure is received.

7. The acoustic fish-attracting device according to claim 2, wherein a plurality of strip-shaped permanent magnets (9) are uniformly distributed in the placement groove (54) around the extension cavity.

8. The acoustic fish-attracting device according to claim 7, wherein the strip-shaped permanent magnets (9) are pasted in the placement groove (54), and at least two are arranged.

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