A side-scan sonar towed fish anti-entanglement protection structure

Abstract

This utility model relates to the field of sonar technology, specifically providing an anti-entanglement protection structure for side-scan sonar towed fish. The anti-entanglement protection structure includes: a first rotating part, which is mounted on the towed fish body and is coaxially arranged with the towed fish body. The rotor of the first rotating part is provided with a rotor outer ring, which rotates with the rotor of the first rotating part, and the outer edge of the rotor outer ring is located outside the towed fish body; and a cutting component, which is sheet-shaped or strip-shaped, with one end of the cutting component fixedly connected to the outer edge of the rotor outer ring. The first rotating part drives the cutting component to rotate around the axis of the towed fish body to cut underwater plants. This utility model can prevent underwater plants from entangled on the towed fish body.

Description

Technical Field

[0001] This utility model relates to the field of sonar technology, and in particular to a side-scan sonar towed fish anti-entanglement protection structure. Background Technology

[0002] Side-scan sonar is a marine instrument used for detecting seabed topography and obstacles. It emits sound waves towards the seabed on both sides of the ship and generates high-resolution acoustic images that clearly show seabed topography, geological features, and the outlines of various objects based on the intensity and timing of the reflected sound waves. It is mainly used for marine exploration, underwater search and rescue, engineering surveys, and scientific research.

[0003] Due to the complex seabed conditions, the towed fish of a side-scan sonar may become entangled during operation, and if the entanglement is large, it may damage the towed fish's rope. Therefore, this application proposes an anti-entanglement protection structure for side-scan sonar towed fish. Utility Model Content

[0004] The purpose of this invention is to provide a protective structure for preventing entanglement of side-scan sonar towed fish, so as to solve the problem of entanglement during the operation of current side-scan sonar.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A side-scan sonar towed fish anti-tangling protection structure is installed near the front end of the towed fish body, the anti-tangling protection structure comprising: A first rotating part is mounted on the towed fish body. The first rotating part and the towed fish body are coaxially arranged. The rotor of the first rotating part is provided with a rotor outer ring. The rotor outer ring rotates with the rotor of the first rotating part. The outer edge of the rotor outer ring is located outside the towed fish body. The cutting component is in the form of a sheet or strip, with one end of the cutting component fixedly connected to the outer edge of the outer ring of the rotor. The first rotating part drives the cutting component to rotate around the axis of the towed fish body to cut the underwater plants.

[0006] Furthermore, the towfish body is provided with a mounting shaft, and the first rotating part includes: The first rotor seat is a cylindrical shape with openings at both ends. The first rotor seat is rotatably connected to the mounting shaft via bearings. The outer ring of the rotor is fixed to the end of the first rotor seat, and a plurality of first magnetic blocks are provided on the outer ring of the rotor. The first stator base is cylindrical and is sleeved on the outside of the first rotor base. Multiple first coil windings are provided on the inner side of the first stator base. When the first coil windings are energized, they drive the first rotor base to rotate. The outer ring of the rotor is attached to the end of the first stator base. The first stator base is fixedly connected to the towed fish body.

[0007] Furthermore, the first rotating part also includes: A first sealing sleeve is located between the first coil winding and the first magnetic block to isolate the first coil winding from water immersion.

[0008] Furthermore, a second sealing ring is provided at the end of the first sealing sleeve. The second sealing ring extends into the inner side of the rotor outer ring, and a water seal is fitted on the second sealing ring. The water seal is used to seal the rotor outer ring and the first sealing sleeve.

[0009] Furthermore, a first sealing ring is provided at the end of the rotor outer ring away from the first magnetic block, and a water seal is fitted on the first sealing ring to seal the rotor outer ring and the towed fish body.

[0010] Furthermore, bearings are connected to both ends of the inner side of the first rotor seat.

[0011] Furthermore, the cutting element is an elastic wire.

[0012] Furthermore, the anti-winding protection structure also includes: The second rotating part has the same structure as the first rotating part. The second rotating part is located at the end of the first rotating part, and the second rotating part and the first rotating part are mirror images of each other. The cutting member located on the second rotating part and the cutting member located on the first rotating part rotate in opposite directions.

[0013] In summary, this utility model has the following advantages compared with the prior art: The side-scan sonar towed fish anti-entanglement protection structure disclosed in this utility model embodiment has a first rotating part and a cutting part arranged near the front end of the towed fish body. The first rotating part drives the cutting part to rotate, and when the cutting part rotates, it cuts the underwater plants entangled on the towed fish body, thereby preventing underwater plants from entangled on the towed fish body. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a towed fish equipped with the anti-entanglement protection structure for towed fish disclosed in this embodiment of the utility model.

[0015] Figure 2 for Figure 1 The main view.

[0016] Figure 3 for Figure 2 Sectional view of AA.

[0017] Figure 4 for Figure 3 A magnified view of a section at point I.

[0018] Figure 5 An exploded view of a towed fish equipped with the side-scan sonar anti-entanglement protection structure disclosed in this embodiment of the utility model.

[0019] Figure label: 100. Fish-trapping body; 101. Body; 102. Mounting component; 103. Flow guide head; 104. Transducer; 105. Tail fin; 200. First rotating part; 210. First rotor seat; 211. Rotor outer ring; 212. First sealing ring; 213. Magnet slot; 220. First magnetic block; 230. First stator seat; 231. Coil slot; 240. First coil winding; 250. First sealing sleeve; 251. End sealing ring; 252. Second sealing ring; 300. Cutting component; 400. Second rotating part; 410. Second rotor seat; 420. Second magnetic block; 430. Second stator seat; 440. Second coil winding; 450. Second sealing sleeve; 500. Mounting shaft; 510. Bearing; 520. Bushing; 530. Spring retaining ring; 540. Water seal. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0021] like Figures 1 to 5 As shown, one embodiment of this utility model provides an anti-tangling protection structure for a side-scan sonar towed fish, which is installed near the front end of the towed fish body 100. The anti-tangling protection structure includes: A first rotating part 200 is mounted on the tow fish body 100. The first rotating part 200 and the tow fish body 100 are coaxially arranged. The rotor of the first rotating part 200 is provided with a rotor outer ring 211. The rotor outer ring 211 rotates with the rotor of the first rotating part 200. The outer edge of the rotor outer ring 211 is located on the outside of the tow fish body 100. The cutting component 300 is in the form of a sheet or strip. One end of the cutting component 300 is fixedly connected to the outer edge of the outer ring 211 of the rotor. The first rotating part 200 drives the cutting component 300 to rotate around the axis of the towed fish body 100 to cut the underwater plants.

[0022] Specifically, in this embodiment, when the towfish body 100 is in use, the first rotating part 200 drives the cutting member 300 to rotate. When the cutting member 300 rotates, it cuts the underwater plants wrapped around the towfish, thereby preventing the underwater plants from getting tangled around the towfish.

[0023] The side-scan sonar towed fish anti-entanglement protection structure disclosed in this utility model embodiment has a first rotating part 200 and a cutting part 300 arranged near the front end of the towed fish body 100. The first rotating part 200 drives the cutting part 300 to rotate. When the cutting part 300 rotates, it cuts the underwater plants entangled on the towed fish body 100, thereby preventing underwater plants from entangled on the towed fish body 100.

[0024] Specifically, in this embodiment, the first rotating part 200 is installed in the middle of the body 101 and the guide head 103 on the tow body 100, that is, at the position of the tow body 100 near the front end.

[0025] The towed fish body 100 is a prior art. In this embodiment, the tail of the towed fish body 100 (i.e., the end away from the guide head 103) is provided with a tail fin 105, the middle part of the towed fish body 100 is provided with an mounting member 102, the towed fish body 100 is also provided with a transducer 104 and corresponding electronic components, and the guide head 103 is conical.

[0026] In a preferred embodiment of this invention, the towfish body 100 is provided with a mounting shaft 500, and the first rotating part 200 is mounted on the mounting shaft 500. The first rotating part 200 includes a first rotor seat 210, a first magnetic block 220, a first stator seat 230, and a first coil winding 240. The first rotor seat 210 is a cylindrical shape with openings at both ends. The first rotor seat 210 is rotatably connected to the mounting shaft 500 via a bearing 510. The rotor outer ring 211 is provided at the end of the first rotor seat 210. The first rotor seat 210 is provided with a plurality of magnetic slots 213, which are evenly distributed circumferentially on the outer surface of the first rotor seat 210. The first magnetic block 220 is fixed by adhesive bonding. The first stator base 230 is cylindrical and has a coil slot 231 on its inner side. The coil slots 231 are evenly distributed along the axis of the first stator base 230 in the circumferential direction. The first coil winding 240 is fixedly connected to the coil slot 231 by adhesive bonding. The rotor outer ring 211 is attached to the end of the first stator base 230. When the coil slot 231 is energized, it drives the first rotor base 210 to rotate, thereby driving the cutting piece 300 to rotate. The first stator base 230 is fixedly connected to the machine body 101 by adhesive bonding or screw connection. The guide head 103 is fixedly connected to the end of the mounting shaft 500 away from the guide head 103 by threaded connection.

[0027] In a preferred embodiment of this invention, a first sealing sleeve 250 is further provided between the first coil winding 240 and the first magnetic block 220. The first sealing sleeve 250 is a cylindrical shape with openings at both ends. An end sealing ring 251 is provided on the first sealing sleeve 250. The end sealing ring 251 is sealed and fixedly connected to the inner side of the end of the first stator base 230 near the rotor outer ring 211 by adhesive bonding. The end of the first sealing sleeve 250 away from the rotor outer ring 211 is fixedly connected to the housing 101 by adhesive bonding. The first sealing sleeve 250 is used to isolate the first coil winding 240 and prevent the first coil winding 240 from being immersed in water. The first coil winding 240 is made of a magnetically permeable material, such as plastic.

[0028] Preferably, the end of the first sealing sleeve 250 is further provided with a second sealing ring 252, the second sealing ring 252 extends into the inner side of the rotor outer ring 211, and a water seal 540 is provided on the second sealing ring 252. The water seal 540 is used to seal the rotor outer ring 211 and the first sealing sleeve 250 to prevent water from entering the inner side of the first sealing sleeve 250 from between the first sealing sleeve 250 and the rotor outer ring 211.

[0029] Preferably, a first sealing ring 212 is provided at the end of the rotor outer ring 211 away from the first magnetic block 220. A water seal 540 is sleeved on the first sealing ring 212. The water seal 540 is located inside the guide head 103 and is used to seal the gap between the rotor outer ring 211 and the guide head 103.

[0030] It should be noted that bearings 510 are connected to both ends of the inner side of the first rotor seat 210, and a bushing 520 is provided between the two bearings 510. The bushing 520 is a cylindrical shape with openings at both ends. The bearings 510 are limited by the bushing 520 and the spring retaining ring 530. The connection method of the bushing 520 and the spring retaining ring 530 is the prior art.

[0031] The cutting element 300 is in the form of a sheet or strip, and is preferably an elastic wire, such as a stainless steel wire. When the cutting element 300 rotates, the stainless steel wire can cut underwater plants at high speed. The cutting element 300 is fixedly connected to the first sealing ring 212 by adhesive, and one end of the cutting element 300 is inserted into the first sealing ring 212. Example

[0032] As another embodiment of this utility model, the difference between this embodiment and embodiment 1 is that the anti-winding protection structure further includes a second rotating part 400. The structure of the second rotating part 400 is the same as that of the first rotating part 200. The second rotating part 400 is located between the first rotating part 200 and the guide head 103, and the second rotating part 400 and the first rotating part 200 are mirror images of each other. The rotation directions of the cutting member 300 located on the second rotating part 400 and the cutting member 300 located on the first rotating part 200 are opposite.

[0033] In this embodiment, the second rotating part 400 includes a second rotor seat 410, a second magnetic block 420, a second stator seat 430, a second coil winding 440, and a second sealing sleeve 450. The structure and connection method of the second rotor seat 410, the second magnetic block 420, the second stator seat 430, the second coil winding 440, and the second sealing sleeve 450 are the same as those of the first rotor seat 210, the first magnetic block 220, the first stator seat 230, the first coil winding 240, and the first sealing sleeve 250. The cutting member 300 located on the second rotating part 400 is connected to the second rotor seat 410, and the second rotating part 400 is connected to the mounting shaft 500 through a bearing 510.

[0034] Preferably, the mounting shaft 500 is hollow inside, and the control line of the second rotating part 400 is arranged inside the mounting shaft 500 and connected to the second coil winding 440 through the through hole structure on the mounting shaft 500.

[0035] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0036] It should be understood that although the terms first, second, third, etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A side scan sonar tow fish anti-winding protection structure installed to a position close to a front end of a tow fish body, characterized by, The anti-winding protection structure includes: A first rotating part is mounted on the towed fish body. The first rotating part and the towed fish body are coaxially arranged. The rotor of the first rotating part is provided with a rotor outer ring. The rotor outer ring rotates with the rotor of the first rotating part. The outer edge of the rotor outer ring is located outside the towed fish body. The cutting component is in the form of a sheet or strip, with one end of the cutting component fixedly connected to the outer edge of the outer ring of the rotor. The first rotating part drives the cutting component to rotate around the axis of the towed fish body to cut the underwater plants.

2. The side scan sonar towing fish anti-winding protection structure according to claim 1, characterized in that, The towfish body is provided with a mounting shaft, and the first rotating part includes: The first rotor seat is a cylindrical shape with openings at both ends. The first rotor seat is rotatably connected to the mounting shaft via bearings. The outer ring of the rotor is fixed to the end of the first rotor seat, and a plurality of first magnetic blocks are provided on the outer ring of the rotor. The first stator base is cylindrical and is sleeved on the outside of the first rotor base. Multiple first coil windings are provided on the inner side of the first stator base. When the first coil windings are energized, they drive the first rotor base to rotate. The outer ring of the rotor is attached to the end of the first stator base. The first stator base is fixedly connected to the towed fish body.

3. The side scan sonar towing fish anti-winding protection structure according to claim 2, characterized in that, The first rotating part further includes: A first sealing sleeve is located between the first coil winding and the first magnetic block to isolate the first coil winding from water immersion.

4. The side scan sonar towing fish anti-winding protection structure according to claim 3, characterized in that, The end of the first sealing sleeve is also provided with a second sealing ring, which extends into the inner side of the rotor outer ring. A water seal is fitted on the second sealing ring, which is used to seal the rotor outer ring and the first sealing sleeve.

5. The side scan sonar towing fish anti-winding protection structure according to claim 2, characterized in that, The rotor outer ring is also provided with a first sealing ring at the end away from the first magnetic block. A water seal is fitted on the first sealing ring to seal the rotor outer ring and the towed fish body.

6. The side scan sonar towing fish anti-winding protection structure according to claim 2, characterized in that, Bearings are connected to both ends of the inner side of the first rotor seat.

7. The side scan sonar towing fish anti-winding protection structure according to claim 1, characterized in that, The cutting element is an elastic wire.

8. The side scan sonar tow fish anti-winding protection structure according to any one of claims 1-7, characterized in that, The anti-winding protection structure also includes: The second rotating part has the same structure as the first rotating part. The second rotating part is located at the end of the first rotating part, and the second rotating part and the first rotating part are mirror images of each other. The cutting member located on the second rotating part and the cutting member located on the first rotating part rotate in opposite directions.

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