Adjustable counterweight device based on side-scan sonar towfish

Abstract

The utility model relates to an adjustable counterweight device based on a side-scan sonar tow fish, which can accurately increase and decrease counterweight lead blocks when the adjustable counterweight device is used for adjusting a tow posture based on sonar, and comprises a tow fish head and a suspension screw I, the counter weight comprises a circular plate, a fixed plate, a lead block and a suspension screw II; the adjustable balance weight comprises a circular plate II, a fixing plate II, a lead block II and a suspension screw III, the circular plate II and the fixing plate II are fixedly installed through screws, the lead block II, the circular plate II and the fixing plate II are fixedly assembled through heat-shrinkable sleeves, and the whole adjustable balance weight is suspended on the balance weight through the suspension screw II. According to the adjustable counterweight device, the lead blocks with different sizes are manufactured according to actual requirements, a plurality of adjustable counterweights are overlaid, and the circular plates and the fixing plates between the adjustable counterweights are combined and mounted, so that the adjustment of the counterweights is realized, and finally, the adjustment of the pitching posture of the tow fish is completed.

Description

Technical Field

[0001] This utility model relates to the field of side-scan sonar component assembly technology, and in particular to an adjustable counterweight device based on a side-scan sonar towed fish. Background Technology

[0002] Side-scan sonar towed fish require the addition of lead weights to the head to adjust the towing posture and stability underwater. The weight can also be used to increase the underwater weight, thereby increasing the towed fish's sinking depth. The underwater posture of the towed fish is mainly determined by gravity, buoyancy, and hydrodynamics. During the design phase, the gravity and center of gravity position need to be calculated based on buoyancy and hydrodynamics. The center of gravity position can be achieved by adding lead weights to the head of the towed fish. Currently, the industry generally adjusts the weight by fixing it to the head with set screws. The weight of these lead weights is usually fixed, and only lead weights of different weights can be directly replaced. The lead weights cannot be stacked, the disassembly and assembly process is cumbersome and wasteful of materials, and it is impossible to accurately control the required weight of the lead weights.

[0003] Therefore, a new adjustable counterweight device is provided, which can increase or decrease the counterweight by suspending a counterweight at the head of the towed fish and superimposing a counterweight at the tail of the counterweight, so as to achieve the purpose of quick and accurate adjustment of the counterweight. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an adjustable counterweight device for towing fish based on side-scan sonar. The adjustable counterweight device precisely adds or removes lead weights when adjusting the towing posture based on sonar, comprising:

[0005] The towfish head includes a base and a suspension screw I;

[0006] The counterweight includes a circular plate, a fixed plate, a lead block, and a suspension screw II. The circular plate and the fixed plate are fixed together by screws. The lead block is fixed together with the circular plate and the fixed plate by heat shrink tubing. The entire counterweight is suspended and assembled to one end of the towed fish head by the suspension screw I.

[0007] The adjustable counterweight includes a circular plate II, a fixed plate II, a lead block II, and a suspension screw III. The circular plate II and the fixed plate II are fixed together by screws. The lead block II is fixed together with the circular plate II and the fixed plate II by heat shrink tubing. The entire adjustable counterweight is suspended on the counterweight by the suspension screw II.

[0008] In one embodiment of this utility model, several circular plates and suspension screws are provided, with different positions but the same shape. Therefore, the shapes of the suspension screws and the positioning holes on the circular plates are complementary. The adjustable counterweights are provided in several quantities according to the complementary shapes and site requirements. Lead blocks of different sizes are also manufactured according to the weight, and their size is adjusted by combining them with the circular plates and fixing plates in the adjustable counterweights to adjust the pitching posture of the towed fish. The placement of the suspension screws requires careful design to ensure a reasonable distribution of the center of gravity after the counterweight is suspended, which helps the towed fish maintain a stable posture underwater.

[0009] In one embodiment of this utility model, the base provides an installation foundation for the entire adjustable counterweight device, and the base is fixedly assembled with the sonar towed fish to ensure that it will not loosen or shift during the towing process. The material needs to have a certain strength and corrosion resistance to adapt to the complex underwater environment.

[0010] Compared with the prior art, the above-mentioned technical solution of this utility model has the following advantages: In the adjustable counterweight device of this utility model, lead blocks of different sizes can be made according to actual needs, and a number of adjustable counterweights can be stacked. The circular plates and fixed plates between the adjustable counterweights are combined and installed to realize the adjustment of the size of the counterweight, and finally complete the adjustment of the pitching posture of the towed fish. The whole process is simple to operate, requires no additional tools, and can accurately increase or decrease the counterweight. Attached Figure Description

[0011] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the adjustable counterweight device for towing fish according to this utility model;

[0013] Figure 2 This is a schematic diagram of the towfish head described in this utility model;

[0014] Figure 3 This is a schematic diagram of the counterweight described in this utility model;

[0015] Figure 4 This is a schematic diagram of the adjustable counterweight described in this utility model.

[0016] As shown in the figure: 1. Fish head; 2. Counterweight; 3. Adjustable counterweight; 1.1. Base; 1.2. Suspension screw; 2.1. Circular plate; 2.2. Fixing plate; 2.3. Lead block; 2.4. Suspension screw II; 3.1. Circular plate II; 3.2. Fixing plate II; 3.3. Lead block II; 3.4. Suspension screw III. Detailed Implementation

[0017] like Figure 1 and Figure 2 As shown, this embodiment provides an adjustable counterweight device for towing fish based on side-scan sonar. When adjusting the towing attitude based on sonar, the adjustable counterweight device precisely increases or decreases the lead weight, including:

[0018] The towfish head 1 includes a base 1.1 and a suspension screw I 1.2;

[0019] The counterweight 2 includes a circular plate 2.1, a fixing plate 2.2, a lead block 2.3, and a suspension screw II 2.4. The circular plate 2.1 and the fixing plate 2.2 are fixed together by screws. The lead block 2.3 is fixed together with the circular plate 2.1 and the fixing plate 2.2 by heat shrink tubing. The entire counterweight 2 is suspended and assembled to one end of the towed fish head 1 by the suspension screw I 1.2.

[0020] The adjustable counterweight 3 includes a circular plate II 3.1, a fixed plate II 3.2, a lead block II 3.3, and a suspension screw III 3.4. The circular plate II 3.1 and the fixed plate II 3.2 are fixed together by screws. The lead block II 3.3 is fixed together with the circular plate II 3.1 and the fixed plate II 3.2 by heat shrink tubing. The entire adjustable counterweight 3 is suspended on the counterweight 2 by the suspension screw II 2.4.

[0021] Specifically, the system includes several circular plates and suspension screws, which are positioned differently but have the same shape. The shapes of the suspension screws and the positioning holes on the circular plates are complementary. The adjustable counterweight 3 is configured in several numbers according to the complementary shapes and site requirements. Lead blocks of different sizes are also manufactured according to weight. These are combined with the circular plates and fixed plates in the adjustable counterweight system to adjust the size of the counterweight, thereby adjusting the pitching attitude of the towed fish. The placement of the suspension screws requires careful design to ensure a reasonable distribution of the center of gravity after the counterweight is suspended, which helps the towed fish maintain a stable attitude underwater.

[0022] Specifically, the base 1.1 provides the installation foundation for the entire adjustable counterweight device, and the base 1.1 is fixedly assembled with the sonar towed fish to ensure that it will not loosen or shift during the towing process. The material needs to have a certain strength and corrosion resistance to adapt to the complex underwater environment.

[0023] The adjustable counterweight device described in this embodiment allows for adjustment of the sonar's pitch attitude by removing the towed fish head 1 from the electronics compartment and suspending the counterweight 2 on the suspension screw 1.2 when the counterweight weight needs to be adjusted. A new adjustable counterweight 3 is then suspended on the original suspension screw II 2.4, thus completing the counterweight adjustment. Different sized lead blocks can be manufactured according to weight requirements and combined with the circular plate II 3.1 and the fixed plate II 3.2, along with several adjustable counterweights, to adjust the counterweight size and thus complete the pitch attitude adjustment of the towed fish.

[0024] The adjustable counterweight 3 is suspended from the main counterweight's suspension screw via its suspension screw. This layered suspension method achieves a stacking effect of the counterweight, allowing for quick and easy addition or adjustment of the counterweight weight without replacing the entire counterweight structure, to adapt to different towing posture adjustment needs. Meanwhile, the connection method between the components ensures reliability and stability in complex underwater environments, preventing components from loosening or falling off due to factors such as water flow impact.

[0025] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An adjustable counterweight device for towing fish based on side-scan sonar, wherein the adjustable counterweight device precisely adds or removes lead weights when adjusting the towing posture based on sonar, characterized in that... include: The towfish head (1) includes a base (1.1) and a suspension screw I (1.2); The counterweight (2) includes a circular plate (2.1), a fixed plate (2.2), a lead block (2.3), and a suspension screw II (2.4). The circular plate (2.1) and the fixed plate (2.2) are fixed together by screws. The lead block (2.3) is fixed together with the circular plate (2.1) and the fixed plate (2.2) by heat shrink tubing. The entire counterweight (2) is suspended and assembled at one end of the towed fish head (1) by the suspension screw I (1.2). The adjustable counterweight (3) includes a circular plate II (3.1), a fixed plate II (3.2), a lead block II (3.3), and a suspension screw III (3.4). The circular plate II (3.1) and the fixed plate II (3.2) are fixed together by screws. The lead block II (3.3) is fixed together with the circular plate II (3.1) and the fixed plate II (3.2) by heat shrink tubing. The entire adjustable counterweight (3) is suspended on the counterweight (2) by the suspension screw II (2.4).

2. The adjustable counterweight device according to claim 1, characterized in that: The components include several circular plates and suspension screws, which are positioned differently but have the same shape. Therefore, the suspension screws and the positioning holes on the circular plates are complementary in shape.

3. The adjustable counterweight device according to claim 1, characterized in that: The base (1.1) provides the mounting foundation for the entire adjustable counterweight device, and the base (1.1) is fixedly assembled with the sonar towed fish.

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