Underwater side scan sonar carrying device

Abstract

The utility model discloses an underwater side-scan sonar carrying device which comprises a carrying frame, the carrying frame is fixed on a ship board in a screw joint mode, a stepping motor is installed on the outer side of the carrying frame, meanwhile, an output shaft of the stepping motor is fixed to a rotating shaft of a gear, the gear is movably installed in the carrying frame, and the gear is fixed to the carrying frame. A driving plate is movably mounted on the upper side of the gear, the end of the driving plate penetrates through an opening formed in the left side wall of the carrying frame, meanwhile, the bottom of the left end of the driving plate is fixedly connected with a connecting column, and the end, away from the driving plate, of the connecting column is inserted into the adjusting cylinder. According to the underwater side-scan sonar carrying device, the distance between the side-scan sonar body and a ship side can be adjusted, the detection range of the side-scan sonar body is widened, and detection requirements under different conditions are met; the side-scan sonar body is far away from the ship side, so that the interference of the noise and vibration of the ship body is reduced, and the accuracy of the sonar is improved.

Description

Technical Field

[0001] The utility model relates to the field of side-scan sonar, in particular to an underwater side-scan sonar carrying device. Background Art

[0002] Side scan sonar, also known as side sonar or seafloor topography instrument, is a device that uses the principle of echo sounding to detect seafloor topography and underwater objects. Its transducer array is installed in the hull or towed body, and emits fan-shaped beam sound pulses to both sides and below when sailing. The beam plane is perpendicular to the navigation direction, and the beam width along the route direction is very narrow, with an opening angle generally less than 2° to ensure a higher resolution; the beam width perpendicular to the route direction is wider, with an opening angle of about 20°-60° to ensure a certain scanning width.

[0003] When working, the sound waves emitted are projected onto the seabed in a long strip shape. The transducer array receives the backscattered signals from various points in the irradiated area, and after amplification, processing and recording, the image of the seabed is displayed on the recording paper. The target image with a strong echo signal is darker, and the image of the shadow area that is not irradiated by the sound waves is very light. The height of the target can be estimated based on the length of the shadow area.

[0004] Side-scan sonar is the most important tool for underwater landform measurement and is widely used in marine surveying, underwater archaeology, marine geological surveys, etc. Side-scan sonar measurement generally adopts towed measurement, but in complex areas with large changes in underwater terrain, it is generally safer to use side-mounted measurement;

[0005] Side scan sonar is generally installed on the side of the ship. There are two ways to install side scan sonar equipment: one is towing type, the other is fixed type. For the fixed installation method, a steel pipe with a flange is generally fixed on the side or bow of the ship, and the side scan sonar is fixed on the flange of the steel pipe. The distance between the side scan sonar and the side of the ship cannot be adjusted, so that the side scan sonar cannot adjust the distance according to specific needs, which may result in a fixed detection range and cannot meet the detection needs in different situations. Utility Model Content

[0006] The purpose of the utility model is to provide an underwater side-scan sonar carrying device to solve the defects mentioned in the above background technology.

[0007] To achieve the above-mentioned purpose, an underwater side-scan sonar carrying device is provided, including a carrying frame, which is screwed and fixed on the side of the ship, and a stepper motor is installed on the outer side of the carrying frame, and the output shaft of the stepper motor is fixed to the rotating shaft of the gear, and the gear is movably installed inside the carrying frame, a drive plate is movably installed on the upper side of the gear, and the end of the drive plate is arranged through an opening provided on the left side wall of the carrying frame, and the bottom of the left end of the drive plate is fixedly connected to a connecting column, and the end of the connecting column away from the driving plate is inserted into the inside of an adjusting tube, the bottom of the adjusting tube is screwed and fixed to a side-scan sonar body, and the connecting column and the driving plate are reinforced by inclined tie bars.

[0008] Preferably, a rack is screwed and fixed to the bottom of the driving plate, and the rack is matched with the gear in size, and the rack is meshed with the gear.

[0009] Preferably, the driving plate is rectangular in shape, and the upper right side of the driving plate is fixedly connected to the limit seat. At the same time, two groups of limit holes are opened inside the limit seat, and limit rods are inserted into the two groups of limit holes.

[0010] Preferably, the two groups of limit rods are arranged in parallel, and the limit rods are fixedly arranged on the inner wall of the carrying frame, and guide rods are installed at the bottom of the limit rods, and the ends of the guide rods are connected to the side walls of the carrying frame.

[0011] Preferably, the guide rod is inserted into the guide hole opened at the end of the guide seat, and two groups of guide seats are provided and respectively fixedly connected to the two sides of the right end of the driving plate, and the guide seat is an "L"-shaped structure.

[0012] Preferably, a sliding block is fixedly mounted on the side wall of the opening, and the size of the sliding block matches that of the sliding groove. The sliding block is slidably arranged inside the sliding groove, and the cross-sections of the sliding block and the sliding groove are both dovetail structures.

[0013] Preferably, the bottom of the connecting column is fixedly connected to the stud, and the stud is inserted into the side opening opened on the side wall of the adjusting cylinder, the side opening is set in a "U" shape, and the outer side of the stud is screwed with a fixing nut.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The output shaft of the stepper motor drives the gear to rotate, and the gear drives the driving plate meshing with it to move to the left, and drives the side scan sonar body to move outward or inward through the connecting column and the adjusting tube. The distance between the side scan sonar body and the ship's side can be adjusted to increase the detection range of the side scan sonar body and meet the detection needs in different situations; the side scan sonar body is kept away from the ship's side, so that it is less disturbed by the noise and vibration of the hull itself, thereby improving the accuracy of the sonar;

[0016] The depth of the side-scan sonar body submerged in the water can be adjusted by inserting the bottom of the connecting column into the depth of the adjusting tube. After the adjustment is completed, it is locked by studs and nuts. By adjusting the lateral position and vertical depth of the side-scan sonar body, the detection range of the side-scan sonar body is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front view of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structural drive plate and its connection structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the structure carrying frame of the utility model;

[0020] Figure 4 This is a schematic diagram of increasing the distance between the side-scan sonar body and the ship's side according to the utility model;

[0021] Figure 5 This is a schematic diagram of the structural adjustment cylinder of the utility model;

[0022] Figure 6 The utility model structure Figure 3 Schematic diagram of the AA section structure.

[0023] Numbers in the figure: 1. Carrying frame; 2. Limit seat; 3. Limit rod; 4. Drive plate; 41. Slide groove; 42. Slider; 5. Gear; 6. Stepper motor; 7. Opening; 8. Connecting column; 9. Tie rod; 10. Rack; 11. Guide rod; 12. Guide seat; 13. Adjustment cylinder; 131. Side opening; 14. Stud; 15. Side scan sonar body; 16. Ship's side. DETAILED DESCRIPTION

[0024] See also Figure 1-6 The utility model provides an underwater side-scan sonar carrying device, including a carrying frame 1, which is screwed and fixed on the ship's side 16, and a stepper motor 6 is installed on the outer side of the carrying frame 1, and the output shaft of the stepper motor 6 is fixed to the rotating shaft of a gear 5, and the gear 5 is movably installed inside the carrying frame 1, and a driving plate 4 is movably installed on the upper side of the gear 5, and the end of the driving plate 4 is arranged through an opening 7 opened on the left side wall of the carrying frame 1, and the bottom of the left end of the driving plate 4 is fixedly connected to a connecting column 8, and the end of the connecting column 8 away from the driving plate 4 is inserted into the inside of an adjusting tube 13, and the bottom of the adjusting tube 13 is screwed and fixed to a side-scan sonar body 15, and the connecting column 8 and the driving plate 4 are reinforced by an inclined tie rod 9.

[0025] Working principle: when it is necessary to adjust the distance between the side scan sonar body 15 and the ship's side 16, the external switch of the stepper motor 6 is started, the output shaft of the stepper motor 6 drives the gear 5 to rotate, and the gear 5 drives the driving plate 4 meshing therewith to move to the left, and drives the side scan sonar body 15 to move outward or inward through the connecting column 8 and the adjusting tube 13. The distance between the side scan sonar body 15 and the ship's side 16 can be adjusted to increase the detection range of the side scan sonar body 15 and meet the detection needs in different situations; the side scan sonar body 15 is moved away from the ship's side 16 to reduce the interference of the noise and vibration of the hull itself, thereby improving the accuracy of the sonar.

[0026] As a preferred embodiment, the bottom of the driving plate 4 is screwed with a fixed rack 10 , and the rack 10 is adapted to the size of the gear 5 , and the rack 10 is meshedly connected with the gear 5 .

[0027] like Figure 1-4 As shown: the rack 10 is meshed with the gear 5, the output shaft of the stepper motor 6 rotates clockwise, and the drive plate 4 moves to the right, which can reduce the distance between the side scan sonar body 15 and the ship's side 16;

[0028] The output shaft of the stepper motor 6 rotates counterclockwise, and the driving plate 4 moves leftward, so that the distance between the side scan sonar body 15 and the ship's side 16 can be increased.

[0029] As a preferred embodiment, the driving plate 4 is rectangular, and the upper right side of the driving plate 4 is fixedly connected to the limit seat 2. At the same time, two groups of limit holes are opened inside the limit seat 2, and the limit rods 3 are inserted into the two groups of limit holes.

[0030] like Figure 1-4 As shown: when the driving plate 4 moves laterally, the two groups of limiting holes opened inside the limiting seat 2 are both inserted with the limiting rods 3, which can limit and guide the driving plate 4 moving laterally, ensuring the stability of the driving plate 4 during movement and preventing it from tilting.

[0031] As a preferred embodiment, two groups of limit rods 3 are arranged in parallel, and the limit rods 3 are fixedly arranged on the inner wall of the mounting frame 1. At the same time, a guide rod 11 is installed at the bottom of the limit rod 3, and the end of the guide rod 11 is connected to the side wall of the mounting frame 1.

[0032] As a preferred embodiment, the guide rod 11 is inserted into the guide hole opened at the end of the guide seat 12, and two groups of guide seats 12 are respectively fixed to the two sides of the right end of the driving plate 4, and the guide seat 12 is an "L"-shaped structure.

[0033] like Figure 1-4As shown: when the driving plate 4 moves laterally, the guides opened inside the guide seat 12 are all plugged into the guide rods 11, which can limit and guide the laterally moving driving plate 4, ensuring the stability of the driving plate 4 during movement and preventing it from tilting.

[0034] As a preferred embodiment, a slider 42 is fixedly installed on the side wall of the opening 7, and the slider 42 is adapted to the size of the slide groove 41. At the same time, the slider 42 is slidably set inside the slide groove 41, and the cross-sections of the slider 42 and the slide groove 41 are both dovetail structures.

[0035] The arrangement of the slider 42 and the slide groove 41 can support the left end of the driving plate 4 when it is subjected to force, thereby further preventing the driving plate 4 from tilting.

[0036] As a preferred embodiment, the bottom of the connecting column 8 is fixedly connected to the stud 14, and the stud 14 is inserted into the side opening 131 opened on the side wall of the adjusting tube 13. The side opening 131 is set in a "U" shape, and the outer side of the stud 14 is screwed with a fixing nut.

[0037] like Figure 1-4 As shown in the figure, the depth of the side scan sonar body 15 submerged in the water body can be adjusted by inserting the bottom of the connecting column 8 into the depth of the adjusting tube 13. After the adjustment is completed, it is locked by the stud 14 and the nut. By adjusting the lateral position and vertical depth of the side scan sonar body 15, the detection range of the side scan sonar body 15 is improved.

Claims

1. An underwater side-scan sonar carrying device, comprising a carrying frame (1), characterized in that: The carrying frame (1) is screwed and fixed on the ship's side (16), and a stepper motor (6) is installed on the outer side of the carrying frame (1). At the same time, the output shaft of the stepper motor (6) is fixed to the rotating shaft of the gear (5), and the gear (5) is movably installed inside the carrying frame (1). The drive plate (4) is movably installed on the upper side of the gear (5), and the end of the drive plate (4) is arranged through an opening (7) provided on the left side wall of the carrying frame (1). At the same time, the bottom of the left end of the drive plate (4) is fixedly connected to the connecting column (8), and the end of the connecting column (8) away from the driving plate (4) is inserted into the inside of the adjusting tube (13), and the bottom of the adjusting tube (13) is screwed and fixed to the side scanning sonar body (15), and the connecting column (8) and the driving plate (4) are reinforced by inclined tie bars (9).

2. The underwater side-scan sonar carrying device according to claim 1, characterized in that: The bottom of the driving plate (4) is screwed to fix a rack (10), and the rack (10) is matched with the size of the gear (5), and the rack (10) is meshedly connected with the gear (5).

3. The underwater side-scan sonar carrying device according to claim 1, characterized in that: The driving plate (4) is rectangular in shape, and the upper right side of the driving plate (4) is fixedly connected to the limiting seat (2). At the same time, two groups of limiting holes are provided inside the limiting seat (2), and the limiting rods (3) are inserted into the two groups of limiting holes.

4. The underwater side-scan sonar carrying device according to claim 3, characterized in that: The two groups of limit rods (3) are arranged in parallel, and the limit rods (3) are fixedly arranged on the inner wall of the carrying frame (1). At the same time, a guide rod (11) is installed at the bottom of the limit rod (3), and the end of the guide rod (11) is connected to the side wall of the carrying frame (1).

5. The underwater side-scan sonar carrying device according to claim 4, characterized in that: The guide rod (11) is inserted into a guide hole provided at the end of the guide seat (12), and the guide seat (12) is provided with two groups which are respectively fixedly connected to the two sides of the right end of the driving plate (4), and the guide seat (12) is an "L"-shaped structure.

6. The underwater side-scan sonar carrying device according to claim 1, characterized in that: A sliding block (42) is fixedly mounted on the side wall of the opening (7), and the size of the sliding block (42) matches that of the sliding groove (41). The sliding block (42) is slidably arranged inside the sliding groove (41), and the cross-sections of the sliding block (42) and the sliding groove (41) are both dovetail structures.

7. The underwater side-scan sonar carrying device according to claim 1, characterized in that: The bottom of the connecting column (8) is fixedly connected to the stud (14), and the stud (14) is inserted into the side opening (131) provided on the side wall of the adjusting tube (13), the side opening (131) is arranged in a "U" shape, and the outer side of the stud (14) is screwed with a fixing nut.

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