Underwater dragging type sonar device

Abstract

The utility model belongs to the technical field of underwater detection, and particularly relates to an underwater dragging type sonar device which comprises a main cavity integrating parts, carrying handles are symmetrically distributed and fixedly connected to the upper surface of the main cavity, a fish head is fixedly connected to the surface of one side of the front end of the main cavity, and a transverse stabilizing mechanism is arranged on the surface of one side of the rear end of the main cavity. A transverse stabilizing mechanism is arranged on the upper surface of the main cavity, a longitudinal stabilizing mechanism is arranged on the upper surface of the main cavity, the transverse stabilizing mechanism and the longitudinal stabilizing mechanism level the main cavity during underwater operation, the transverse stabilizing mechanism comprises a fishtail fixedly mounted on the surface of one side of the rear end of the main cavity, and the longitudinal stabilizing mechanism comprises a dragging device fixedly mounted on the upper surface of the main cavity. According to the underwater dragging type sonar device, the front end of the fish head adopts a curved surface front cut angle flow guide design, the fish tail adopts a tail end sinking type curved surface rear cut modeling, and the fish head, the fish tail, the tail wing and the sonar device adopt a fluid design, so that the product is more stable in operation, and the posture in underwater operation is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater detection, in particular to an underwater towed sonar device. Background Art

[0002] An underwater towed sonar device is a device used for lateral scanning and detection of underwater terrain, objects or organisms. It usually consists of the following main parts: sensor device: including sonar, side-scan sonar or other types of sensors, used to transmit signals and receive echoes to detect the location, shape and characteristics of underwater targets; towing device: used to drag the sensor device horizontally along the underwater area to ensure that the sensor can perform a comprehensive coverage scan of the underwater area; data recording and processing unit: used to record the data obtained by the sensor, and process and analyze the data to generate images of underwater terrain or target objects, data models or other forms of output; communication equipment: an optional part used for data transmission and communication with the control center on the water or on the shore. Underwater towed sonar devices are usually used in marine geological exploration, underwater archaeology, underwater search and rescue, and marine biology research, and can provide key underwater information to support scientific research and engineering applications.

[0003] A Chinese patent with publication number CN114265436B discloses a portable side-scan sonar transducer angle electric adjustment device, including an electronic cabin, a handle on the electronic cabin, a connecting structure installed at one end of the electronic cabin, a transducer structure installed between the connecting structure and the electronic cabin, an electric adjustment device installed between the transducer structure and the connecting structure, and an angle sensor installed between the transducer structure and the electronic cabin, thereby solving the problem that the radiation surface angle of the portable side-scan sonar transducer cannot be automatically adjusted underwater.

[0004] However, the above technical solution cannot ensure the stable roll and pitch state of the fuselage when operating underwater, so that the water flow impacts the fuselage, increases the operating resistance, and the generated bubbles affect the reception and transmission of signals by the sonar devices on both sides. Therefore, the utility model is proposed to solve the shortcomings of the above technical problems. Utility Model Content

[0005] Based on the above existing technical problems, the utility model proposes an underwater towed sonar device.

[0006] The utility model proposes an underwater towed sonar device, comprising a main cavity with integrated components, the upper surface of the main cavity is symmetrically distributed with carrying handles fixedly connected, the front end side surface of the main cavity is fixedly connected with a fish head, the rear end side surface of the main cavity is provided with a transverse stabilizing mechanism, the upper surface of the main cavity is provided with a longitudinal stabilizing mechanism, the transverse stabilizing mechanism and the longitudinal stabilizing mechanism are used to level the main cavity when it is running underwater, the transverse stabilizing mechanism comprises a fish tail fixedly mounted on the rear end side surface of the main cavity, and the longitudinal stabilizing mechanism comprises a towing device fixedly mounted on the upper surface of the main cavity.

[0007] Preferably, the front outer surface of the fish head adopts a curved front chamfer diversion design.

[0008] Preferably, the lateral stabilization mechanism further comprises a sonar device fixedly connected to the two side surfaces of the main cavity, and the front end opposite side surfaces of the sonar devices on both sides are fixedly fitted to the outer surface of the fish head.

[0009] Preferably, the fish tail adopts a tail end sunken curved rear cut design, and the rear end opposite side surfaces of the sonar devices on both sides are fixedly fitted with the outer surface of the fish tail.

[0010] Preferably, the outer surfaces on both sides of the fishtail are symmetrically fastened with tail wings by tail wing fixing screws, and the tail wings are lengthened to increase the rear chamfer angle and area, and the front end transition radius is enlarged.

[0011] Preferably, the longitudinal stabilizing mechanism also includes a dragging ring rotatably connected to the upper end surface of the dragging device through a connecting shaft, and the dragging device includes a U-shaped plate installed on the upper surface of the main cavity through fixing screws, and the surface of the U-shaped plate is provided with adjustment holes distributed in a rectangular array, and the inner surface of the U-shaped plate is slidably connected with an inclined connecting block, and the connecting block is fastened to the inner surface of the U-shaped plate by fixing screws inserted into the adjusting holes.

[0012] The beneficial effects of the present invention are:

[0013] 1. By setting up a lateral stabilizing mechanism, the product can maintain stability when running underwater. During the adjustment process, the front end of the fish head adopts a curved front cutting angle diversion design, the fish tail adopts a tail end sunken curved surface back cut shape, and the fluid design of the fish head, fish tail, tail wing and sonar device makes the product run more smoothly and ensures the posture when running underwater.

[0014] 2. By setting up a longitudinal stabilizing mechanism, the overall dragging of the product can be coordinated with the product's center of gravity when it is running underwater to ensure the longitudinal tilt of the product during operation. During the adjustment process, the dragging device is installed at the designated position of the main cavity. The main function is to ensure the posture when running underwater. The dragging device is used to coordinate the overall dragging and the product's center of gravity to ensure the longitudinal tilt of the product during operation. The dragging ring is used to fix the towing cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of an underwater towed sonar device proposed by the utility model;

[0016] Figure 2 This is a front view of the towing device structure of an underwater towed sonar device proposed by the utility model;

[0017] Figure 3 The utility model provides a top view of the tail wing structure of an underwater towed sonar device.

[0018] In the figure: 1. main cavity; 2. fish head; 3. sonar device; 4. fish tail; 5. tail fin fixing screw; 6. tail fin; 7. carrying handle; 8. towing device; 81. U-shaped plate; 82. adjustment hole; 83. connecting block; 9. towing ring. Implementation

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-3 An underwater towed sonar device comprises a main cavity 1 with integrated components, the main cavity 1 comprises an upper surface of the main cavity 1 with integrated components, a carrying handle 7 is symmetrically distributed and fixedly connected, a fish head 2 is fixedly connected to a surface of a front end side of the main cavity 1, a lateral stabilizing mechanism is arranged on a surface of a rear end side of the main cavity 1, and a longitudinal stabilizing mechanism is arranged on the upper surface of the main cavity 1. The lateral stabilizing mechanism and the longitudinal stabilizing mechanism are used to level the main cavity 1 when it is running underwater, the lateral stabilizing mechanism comprises a fish tail 4 fixedly mounted on a surface of a rear end side of the main cavity 1, and the longitudinal stabilizing mechanism comprises a towing device 8 fixedly mounted on the upper surface of the main cavity 1.

[0021] In order to prevent the main cavity 1 from swaying due to the impact of water flow when running underwater, the front outer surface of the fish head 2 adopts a curved front chamfer diversion design. When the fish head 2 is impacted by the water flow, the upper and lower middle parts of the fish head 2 will smoothly transition, reducing the resistance of the front end of the fish head 2, thereby facilitating the smooth movement of the main cavity 1.

[0022] The lateral stabilization mechanism also includes a sonar device 3 fixedly connected to the two side surfaces of the main cavity 1. The sonar device 3 includes a sealed shell on the outer surface and a transmitter, a receiver, a signal processor, and a display / recording device installed inside the sealed shell. The working principle of the sonar device 3 is to emit sound wave signals, generate echoes when encountering objects, and then receive and analyze these echoes to obtain information such as the distance, direction and characteristics of the target object. In order to avoid the generation of bubbles affecting the reception and transmission of signals by the sonar devices 3 on both sides, the front end surfaces of the sonar devices 3 on both sides are fixedly fitted to the outer surface of the fish head 2, and the fish head 2 and the sonar device 3 are seamlessly fitted, so that the underwater towed sonar device is streamlined as a whole, which increases the flow effect of the fish head 2 and reduces the resistance of the product during underwater operation.

[0023] In order to increase the flow-through effect at the tail, the fish tail 4 adopts a tail-end sunken curved rear-cut design, and the rear end opposite side surfaces of the sonar devices 3 on both sides are fixedly fitted with the outer surface of the fish tail 4. The fish head 2, fish tail 4, sonar device 3 and main cavity 1 are seamlessly fitted, and the overall streamlined design reduces the tail resistance, making the product run more smoothly.

[0024] The symmetrical outer surfaces of the fish tail 4 are fastened with tail wings 6 by tail wing fixing screws 5. The tail wings 6 are lengthened to increase the rear cutting angle and area, and the front transition radius is enlarged. When the towing device 8 is running underwater, the center of gravity and the diversion of the product itself are very heavy. The design of the center of gravity ensures that the towing is relatively parallel after being subjected to the corresponding water flow resistance, so that symmetrical tail wings 6 are set on both sides of the fish tail 4, and then the symmetrical diversion water flow on both sides is stamped to increase the stability. At the same time, the shape and size of the tail wing 6 determine the balance state of the roll, so as to lengthen the rear cutting angle of the tail wing 6, increase the area of ​​the tail wing 6, and increase the front transition radius of the tail wing 6, so that the product can run more smoothly and ensure the posture when running underwater.

[0025] By setting up a lateral stabilizing mechanism, the product can maintain stability when running underwater. During the adjustment process, the front end of the fish head 2 adopts a curved front cutting angle diversion design, the fish tail 4 adopts a tail end sunken curved rear cutting shape, and the fluid design of the fish head 2, fish tail 4, tail wing 6 and sonar device 3 makes the product run more smoothly and ensures the posture when running underwater.

[0026] The longitudinal stabilizing mechanism also includes a dragging ring 9 rotatably connected to the upper end surface of the dragging device 8 through a connecting shaft, and the dragging ring 9 is rotatably connected to the upper end surface of the connecting block 83. In order to ensure the posture when running underwater, the dragging device 8 includes a U-shaped plate 81 installed on the upper surface of the main cavity 1 through fixing screws, and the surface of the U-shaped plate 81 is provided with adjustment holes 82 in a rectangular array, and the inner surface of the U-shaped plate 81 is slidably connected to the upper end surface of the connecting block 83. It is connected with an inclined connecting block 83, which is fastened to the inner surface of the U-shaped plate 81 by means of fixing screws inserted into the adjusting holes 82. The dragging device 8 is installed at a specified position of the main cavity 1. In order to coordinate the overall dragging with the center of gravity of the product, the dragging device 8 can be adjusted so that the connecting block 83 in the dragging device 8 moves horizontally on the inner surface of the U-shaped plate 81 to adjust the center of gravity, and then is fastened by means of fixing screws inserted into the adjusting holes 82, thereby ensuring the longitudinal tilt of the product during operation. The dragging ring 9 is used to fix the dragging cable.

[0027] By setting up a longitudinal stabilization mechanism, the overall dragging of the product when running underwater can be coordinated with the center of gravity of the product to ensure the longitudinal tilt of the product when running. During the adjustment process, the dragging device 8 is installed at the designated position of the main cavity 1. The main function is to ensure the posture when running underwater. The dragging device 8 is used to coordinate the overall dragging and the center of gravity of the product to ensure the longitudinal tilt of the product when running. The dragging ring 9 is used to fix the dragging cable.

[0028] Working principle: In a specific embodiment of the utility model, the center of gravity is adjusted by horizontally moving the connecting block 83 in the towing device 8 on the inner surface of the U-shaped plate 81, and then fastened by inserting the fixing screws in the adjustment hole 82, so that the product can be put into the water through the carrying handle 7;

[0029] The front end of the fish head 2 adopts a curved front cutting angle diversion design, so that the upper and lower middle parts of the fish head 2 can smoothly transition after being impacted by the water flow, reducing the resistance of the front end of the fish head 2 and avoiding the generation of bubbles that affect the reception and transmission of signals by the sonar devices 3 on both sides. The fish tail 4 adopts a tail-end sunken curved surface rear-cut shape, and at the same time, the rear cutting angle of the tail wing 6 is lengthened and the area of ​​the tail wing 6 is increased, and the transition radius at the front end of the tail wing 6 is increased, so that the product can run more smoothly and ensure the posture when running underwater.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An underwater towed sonar device, comprising a main cavity (1) integrating components, characterized in that: The upper surface of the main cavity (1) is symmetrically distributed with carrying handles (7) fixedly connected thereto, the front side surface of the main cavity (1) is fixedly connected with a fish head (2), the rear side surface of the main cavity (1) is provided with a transverse stabilizing mechanism, and the upper surface of the main cavity (1) is provided with a longitudinal stabilizing mechanism. The transverse stabilizing mechanism and the longitudinal stabilizing mechanism are used to level the main cavity (1) when it is running underwater, the transverse stabilizing mechanism comprises a fish tail (4) fixedly mounted on the rear side surface of the main cavity (1), and the longitudinal stabilizing mechanism comprises a dragging device (8) fixedly mounted on the upper surface of the main cavity (1).

2. An underwater towed sonar device according to claim 1, characterized in that: The front outer surface of the fish head (2) adopts a curved front chamfer flow guide design.

3. An underwater towed sonar device according to claim 2, characterized in that: The lateral stabilization mechanism also includes a sonar device (3) fixedly connected to the two side surfaces of the main cavity (1), and the front end opposite side surfaces of the sonar devices (3) on both sides are fixedly fitted to the outer surface of the fish head (2).

4. An underwater towed sonar device according to claim 3, characterized in that: The fishtail (4) adopts a tail-end sunken curved rear-cut design, and the rear end opposite side surfaces of the sonar devices (3) on both sides are fixedly fitted with the outer surface of the fishtail (4).

5. An underwater towed sonar device according to claim 4, characterized in that: The outer surfaces of both symmetrical sides of the fishtail (4) are fastened with tail wings (6) via tail wing fixing screws (5); the tail wings (6) are lengthened to increase the rear chamfer angle and area, and the front transition fillet is enlarged.

6. The underwater towed sonar device according to claim 1, characterized in that: The longitudinal stabilizing mechanism further comprises a dragging ring (9) rotatably connected to the upper end surface of the dragging device (8) via a connecting shaft, the dragging device (8) comprising a U-shaped plate (81) mounted on the upper surface of the main cavity (1) via fixing screws, the surface of the U-shaped plate (81) being provided with adjustment holes (82) distributed in a rectangular array, the inner surface of the U-shaped plate (81) being slidably connected to an inclined connection block (83), the connection block (83) being fastened to the inner surface of the U-shaped plate (81) via fixing screws inserted into the adjustment holes (82).

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