A signal-stable anti-interference underwater fish finder

Abstract

The utility model discloses an anti -interference underwater fish finder of signal stability, including fish finder main part, and the fish finder main part is electrically connected with echo sounder probe through communication line, is provided with detachable shielding shell on echo soundar probe, the top of shielding shell is provided with detachable end cover, and the end cover is fixedly installed on the top of shielding shell through mounting bolt. The utility model discloses setting shielding shell outside echo sounder probe, effectively promoted the anti -interference ability, ensured the stability and accuracy of detection signal, while, through the design of mounting bolt, realized the convenient disassembly of shielding shell upper end cover, greatly facilitated the disassembly and maintenance of echo sounder probe in shielding shell inside, reduced use cost and maintenance difficulty, in addition, the elastic support component and the support spring on it set up in shielding shell inside provide the buffer protection for echo sounder probe, further prolong the service life of echo sounder probe.

Description

Technical Field

[0001] This utility model relates to the field of fish finder technology, and in particular to an underwater fish finder with stable signal and anti-interference capability. Background Technology

[0002] In the field of fisheries resource exploration and monitoring, underwater fish finders are an important tool widely used in lakes, rivers, and oceans to detect the location, size, and distribution of fish schools. With continuous technological advancements, the performance and accuracy of fish finders are constantly improving, and anti-interference capability has become one of the key indicators for evaluating their performance.

[0003] In existing technologies, such as the fish finder with strong anti-interference capabilities disclosed in publication number CN207937602U, a metal shielding shell is installed outside the sonar probe to effectively prevent interference from external signals. Simultaneously, an anti-rust coating is applied to the surface of the metal shielding shell, extending the device's service life. However, this technical solution has a significant drawback: it is inconvenient to disassemble and assemble the shielding shell outside the probe. In practical applications, sonar probes may require regular maintenance, replacement, or upgrades, and the existing shielding shell design makes this process complex and time-consuming, increasing usage costs and maintenance difficulty. Utility Model Content

[0004] The purpose of this invention is to provide a stable, interference-resistant underwater fish finder. By setting a shielding shell on the outside of the sonar probe, the anti-interference capability is effectively improved, ensuring the stability and accuracy of the detection signal. At the same time, the design of the mounting bolts enables convenient disassembly of the upper cover of the shielding shell, greatly facilitating the disassembly, assembly, and maintenance of the sonar probe inside the shielding shell, reducing the cost of use and maintenance difficulty. In addition, the elastic support component and its support spring inside the shielding shell provide buffer protection for the sonar probe, further extending the service life of the sonar probe.

[0005] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0006] A signal-stabilized, interference-resistant underwater fish finder, comprising:

[0007] The fish finder body is electrically connected to a sonar probe via a communication line, and the sonar probe is equipped with a detachable shielding shell.

[0008] The aforementioned signal-stable, interference-resistant underwater fish finder has a detachable end cap on the top of its shielding shell, which is fixedly installed on the top of the shielding shell by mounting bolts.

[0009] The aforementioned signal-stable, interference-resistant underwater fish finder has a sealing ring fixedly connected to the bottom of the end cap, which matches the shielding shell, and a sealing ring is provided on the end cap at the position corresponding to the sonar probe communication line.

[0010] The aforementioned signal-stable, interference-resistant underwater fish finder includes an abutment ring at the bottom of the end cap, corresponding to the position of the sonar probe, for fixing the sonar probe.

[0011] The aforementioned signal-stable, interference-resistant underwater fish finder has an elastic support component installed at the bottom of the inner wall of the shielded outer shell, corresponding to the position of the sonar probe.

[0012] The aforementioned signal-stable, interference-resistant underwater fish finder includes an elastic support assembly comprising a support plate fixedly connected to the bottom of the inner wall of the fish finder body, a support spring fixedly connected to the top of the support plate, and a support seat matching the sonar probe fixedly connected to the top of the support spring.

[0013] In the aforementioned signal-stable, interference-resistant underwater fish finder, both sides of the top of the support plate are fixedly connected to positioning slide rods, and positioning sleeves are slidably connected to the positioning slide rods. The side of the positioning sleeve closest to the support base is fixedly connected to the side of the support base.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. This utility model realizes a signal-stable, anti-interference underwater fish finder. By setting a shielding shell on the outside of the sonar probe, the anti-interference capability is effectively improved, ensuring the stability and accuracy of the detection signal. At the same time, the design of the mounting bolts enables convenient disassembly of the upper cover of the shielding shell, which greatly facilitates the disassembly, assembly, and maintenance of the sonar probe inside the shielding shell, reducing the cost of use and maintenance difficulty. In addition, the elastic support component and its support spring inside the shielding shell provide buffer protection for the sonar probe, further extending the service life of the sonar probe.

[0016] 2. Enhanced anti-interference capability: By installing a shielding shell on the outside of the sonar probe, this invention effectively prevents interference from external signals, ensuring the stability and accuracy of the detection signal. This is particularly important for underwater detection in complex electromagnetic environments, significantly improving the reliability of the detection results.

[0017] 3. Easy to disassemble and maintain: This utility model uses mounting bolts to facilitate the removal of the end caps on the shielding shell, thus simplifying the disassembly and assembly process of the sonar probe inside the shielding shell. This design makes the maintenance, replacement, or upgrading of the sonar probe more convenient, reducing operating costs and maintenance difficulty.

[0018] 4. Provides buffer protection: Inside the shielding shell, this invention also includes an elastic support assembly for protecting the sonar probe. Utilizing the elastic force of the supporting spring on the elastic support assembly, when the sonar probe is installed inside the shielding shell, it can provide buffer protection, reducing damage to the sonar probe caused by external impacts or vibrations, and further extending the service life of the sonar probe. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of the signal-stabilized, anti-interference underwater fish finder of this utility model;

[0021] Figure 2 This is a cross-sectional structural diagram of the signal-stabilized, anti-interference underwater fish finder of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the shielding shell in the signal-stabilized, anti-interference underwater fish finder of this utility model;

[0023] Figure 4 This is a schematic diagram of the elastic support component in the signal-stabilized, anti-interference underwater fish finder of this utility model.

[0024] Explanation of icon numbers:

[0025] 1. Fish finder body; 2. Sonar probe; 3. Shielding shell;

[0026] 301. End cap; 3011. Mounting bolts;

[0027] 302. Sealing ring; 303. Abutment ring; 304. Sealing ring; 305. Elastic support assembly;

[0028] 3051, Support plate; 3052, Support spring; 3053, Support base;

[0029] 3054, Positioning slide rod; 3055, Positioning slide sleeve. Detailed Implementation

[0030] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0031] Please refer to Figures 1 to 4As shown, an embodiment of this utility model provides a signal-stable, interference-resistant underwater fish finder, comprising: a fish finder body 1, a sonar probe 2 electrically connected to the fish finder body 1 via a communication line, and a detachable shielding shell 3 provided on the sonar probe 2;

[0032] By adopting the above technical solution, the shielding shell 3 on the outside of the sonar probe 2 effectively improves the anti-interference capability and ensures the stability and accuracy of the detection signal. At the same time, the design of the mounting bolt 3011 enables convenient disassembly of the upper cover 301 of the shielding shell 3, which greatly facilitates the disassembly, assembly and maintenance of the sonar probe 2 inside the shielding shell 3, reducing the cost of use and the difficulty of maintenance. In addition, the elastic support component 305 and the support spring 3052 set inside the shielding shell 3 provide buffer protection for the sonar probe 2, further extending the service life of the sonar probe 2.

[0033] The shielding shell 3 of the underwater fish finder can be made of the following materials:

[0034] 1. Metallic materials

[0035] Stainless steel, such as 304 stainless steel, has good corrosion resistance, making it suitable for underwater environments and able to resist the erosion of seawater or fresh water. It also has good electrical conductivity, effectively shielding against electromagnetic interference, and high mechanical strength, allowing it to withstand certain water pressure and impacts.

[0036] Aluminum and aluminum alloys: Lightweight, easy to install and operate. After special treatment (such as anodizing), aluminum alloys not only have good electromagnetic shielding performance, but also enhanced corrosion resistance, meeting the requirements for long-term underwater use.

[0037] 2. Conductive polymer composite materials

[0038] Conductive plastics are made by adding conductive fillers (such as carbon black, metal powder, etc.) to ordinary plastics. They possess the characteristics of easy molding of plastics, allowing them to be made into various complex shapes according to design requirements. They also have a certain electromagnetic shielding capability and are relatively inexpensive.

[0039] Conductive rubber: Composed of a rubber matrix and conductive fillers, it combines the flexibility and sealing properties of rubber with electromagnetic shielding. It can be used in the sealing parts of shielding enclosures, enhancing overall waterproof performance while ensuring shielding effectiveness.

[0040] 4. Metal coating materials

[0041] Copper plating: Plating copper on the surface of some insulating materials (such as engineering plastics) can give the originally non-conductive materials good conductivity and shielding properties. The copper plating layer is relatively thin, so it will not add too much weight, and different base materials can be selected as needed to meet other performance requirements.

[0042] To facilitate the disassembly, assembly, and maintenance of the sonar probe 2, in this embodiment, a detachable end cap 301 is provided on the top of the shielding housing 3, and the end cap 301 is fixedly installed on the top of the shielding housing 3 by mounting bolts 3011. This design allows the end cap 301 to be easily disassembled and installed, thereby simplifying the disassembly and assembly process of the sonar probe 2 inside the shielding housing 3 and reducing maintenance difficulty and cost.

[0043] To ensure the airtightness of the shielding shell 3, in this embodiment: a sealing ring 302 matching the shielding shell 3 is fixedly connected to the bottom of the end cap 301, and a sealing ring 304 is provided on the end cap 301 at the position corresponding to the communication line of the sonar probe 2. The sealing ring 302 and the sealing ring 304 effectively prevent moisture and impurities from entering the interior of the shielding shell 3, thus protecting the normal operation of the sonar probe 2.

[0044] In order to stabilize and fix the sonar probe 2, in this embodiment, an abutment ring 303 for fixing the sonar probe 2 is also provided at the bottom of the end cap 301 and at the position corresponding to the sonar probe 2. The abutment ring 303 can ensure that the sonar probe 2 remains stable inside the shielding shell 3 and reduce errors caused by shaking or vibration.

[0045] In order to provide buffer protection for the sonar probe 2, in this embodiment, an elastic support component 305 is installed at the bottom of the inner wall of the shielding shell 3 and at the position corresponding to the sonar probe 2.

[0046] To achieve elastic support and cushioning for the sonar probe 2, in this embodiment: the elastic support assembly 305 includes a support plate 3051 fixedly connected to the bottom of the inner wall of the fish finder body 1, a support spring 3052 fixedly connected to the top of the support plate 3051, and a support seat 3053 matching the sonar probe 2 fixedly connected to the top of the support spring 3052. The elastic force of the support spring 3052 enables the support seat 3053 to provide stable support for the sonar probe 2 and to play a cushioning role when subjected to impact.

[0047] To enhance the stability of the support base 3053, in this embodiment: positioning slide rods 3054 are fixedly connected to both sides of the top of the support plate 3051, and positioning sleeves 3055 are slidably connected to the positioning slide rods 3054. The side of the positioning sleeve 3055 closest to the support base 3053 is fixedly connected to the side of the support base 3053. The cooperation of the positioning slide rods 3054 and the positioning sleeves 3055 ensures the stability of the support base 3053 during movement and reduces errors caused by shaking.

[0048] The working principle of this utility model is as follows: By setting a shielding shell 3 on the outside of the sonar probe 2, interference from external signals is effectively prevented from affecting the sonar probe 2, ensuring the stability and accuracy of the detection signal. Simultaneously, the design of the mounting bolts 3011 allows for convenient disassembly of the upper end cap 301 of the shielding shell 3, making the disassembly, assembly, and maintenance of the sonar probe 2 inside the shielding shell 3 simpler and more efficient. Furthermore, the sealing ring 302 at the bottom of the end cap 301 and the sealing ring 304 at the corresponding communication line position ensure the airtightness of the shielding shell 3, preventing the intrusion of moisture and impurities. The abutment ring 303 at the bottom of the end cap 301 is used to stably fix the sonar probe 2, reducing errors. Inside the shielding shell 3, the elastic support assembly 305 provides buffer protection for the sonar probe 2. Specifically, the support spring 3052 and the support base 3053 on the support plate 3051 work together to buffer and support the sonar probe 2 when it is installed inside the shielding shell 3. Meanwhile, the cooperation between the positioning slide rod 3054 and the positioning sleeve 3055 ensures the stability of the support base 3053. In summary, this invention not only improves the anti-interference capability of the sonar probe 2, but also simplifies the assembly and disassembly process, enhances protective performance, and provides a more reliable and convenient solution for underwater detection.

[0049] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A signal-stabilized, interference-resistant underwater fish finder, comprising a fish finder body (1), characterized in that, The fish finder body (1) is electrically connected to a sonar probe (2) via a communication line. The sonar probe (2) is provided with a detachable shielding shell (3). The top of the shielding shell (3) is provided with a detachable end cap (301), and the end cap (301) is fixedly installed on the top of the shielding shell (3) by mounting bolts (3011). An elastic support assembly (305) is installed at the bottom of the inner wall of the shielding shell (3) and at the position corresponding to the sonar probe (2); the elastic support assembly (305) includes a support plate (3051) fixedly connected to the bottom of the inner wall of the fish finder body (1), a support spring (3052) fixedly connected to the top of the support plate (3051), and a support seat (3053) matching the sonar probe (2) fixedly connected to the top of the support spring (3052). Positioning slide rods (3054) are fixedly connected to both sides of the top of the support plate (3051), and positioning sleeves (3055) are slidably connected to the positioning slide rods (3054), and the side of the positioning sleeve (3055) close to the support seat (3053) is fixedly connected to the side of the support seat (3053).

2. The signal-stabilized, anti-interference underwater fish finder according to claim 1, characterized in that: The bottom of the end cap (301) is fixedly connected to a sealing ring (302) that matches the shielding shell (3), and a sealing ring (304) is provided on the end cap (301) at the position corresponding to the communication line of the sonar probe (2).

3. The signal-stabilized, anti-interference underwater fish finder according to claim 1, characterized in that: At the bottom of the end cap (301) and at the position corresponding to the sonar probe (2), an abutment ring (303) for fixing the sonar probe (2) is also provided.

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