Pressure-resistant weight-reduced vector hydrophone with light outer shell

Abstract

The application provides a pressure-resistant weight-reducing type vector hydrophone with a light shell, which comprises a carbon fiber shell, an anti-shaking assembly, a hydrophone protection structure, a sealing cover and a sealing cap, wherein the sealing cover is fixedly connected to a connecting part one on the top of the carbon fiber shell, an annular sealing piece is integrally formed on the upper surface of the sealing cover, an air bag structure is threadedly connected to the annular sealing piece, the sealing cap is fixedly connected to a connecting part two on the bottom of the carbon fiber shell, and an annular hollow groove is formed in the carbon fiber shell. The hydrophone shell is made of carbon fiber material, the pressure-resistant component is arranged in the shell, the shell is light in weight and good in pressure resistance, the protection component capable of rotating, stretching, damping and protecting is arranged in the shell, the effective protection of the hydrophone is realized, and the problems of poor pressure resistance and unsatisfactory protection effect of the hydrophone at the present stage are solved.

Description

Technical Field

[0001] This invention relates to the field of hydrophone technology, specifically to a pressure-resistant and weight-reducing vector hydrophone with a lightweight housing. Background Technology

[0002] A hydrophone is a transducer that converts sound signals into electrical signals. It is used to receive sound signals in water and is called a receiving transducer or hydrophone. Hydrophones are widely used in underwater communication, exploration, target positioning, and tracking. They are an important component of sonar. Underwater detection, identification, communication, marine environmental monitoring, and marine resource development all rely on hydrophones. Hydrophones are precision electronic devices that are easily affected by water pressure and shaking when operating underwater. Water surges or pulls can cause hydrophones to shake. Therefore, the protective structure of hydrophones is very important and directly affects their performance and service life. Current vector hydrophones have the following shortcomings in use.

[0003] First, the structure of hydrophones is unreasonable. Hydrophones are protected by their outer shells, and the performance and pressure resistance of the shells directly affect the working performance and service life of the hydrophones. At present, the shells are generally made of plastic or alloy materials, which are not ideal in terms of protection and are heavy, which is not conducive to the actual use of hydrophones in water. Second, in current devices, the hydrophone inside the shell is only protected by pressure reduction through springs. When the hydrophone rolls, shakes, or is pulled in the water, the shaking and rolling of the hydrophone are still obvious, so the protection effect is generally poor and there are some shortcomings. Therefore, this invention proposes a pressure-resistant and weight-reducing vector hydrophone with a lightweight shell to solve these problems. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a pressure-resistant and weight-reducing vector hydrophone with a lightweight shell. By using a hydrophone shell made of carbon fiber and incorporating a pressure-resistant component within the shell, the device is lightweight and has good pressure resistance. Furthermore, the shell contains a protective component that allows for rotation, extension, and shock absorption, thus achieving effective protection for the hydrophone and solving the problems of poor pressure resistance and unsatisfactory protection in current hydrophones.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0008] A pressure-resistant, weight-reducing vector hydrophone with a lightweight housing, including a carbon fiber housing, anti-sway components, hydrophone protection structure, sealing cap, and sealing cap;

[0009] The sealing cap is fixedly connected to the connecting part on the top of the carbon fiber shell, and an annular sealing element is integrally formed on the upper surface of the sealing cap. An airbag structure is threaded onto the annular sealing element.

[0010] The sealing cap is fixedly connected to the second connection part at the bottom of the carbon fiber shell;

[0011] The carbon fiber shell has an annular hollow groove. The anti-sway component is fixedly connected to the hollow groove of the carbon fiber shell. The anti-sway component includes multiple limiting rods fixedly connected to the carbon fiber shell at the hollow groove. Each limiting rod has two sliding blocks slidably connected to it. A bearing is fixedly connected to the sliding block corresponding to the limiting rod. A hydrophone positioning cylinder is fixedly connected inside the bearing.

[0012] The hydrophone protection structure is installed on the hydrophone positioning tube. The hydrophone protection structure includes two annular bodies located inside the hydrophone positioning tube, and sealing plates fixedly connected to the two ends of the hydrophone positioning tube. A positioning rod is fixedly connected between the sealing plate and the corresponding annular body. The positioning rod is adapted to the track opened in the hydrophone positioning tube. A tension spring is connected to each of the two annular bodies, and the hydrophone body is installed between the ends of the tension springs.

[0013] Furthermore, a reset spring is sleeved on the limiting rod, and the two ends of the reset spring are respectively fixedly connected to the carbon fiber shell and the sliding block.

[0014] Furthermore, multiple suspension points 1 are fixedly connected in the circumferential direction of the annular body, and multiple suspension points 2 are fixed on the hydrophone body. The two ends of the tension spring are respectively fixed on suspension points 1 and suspension points 2.

[0015] Furthermore, a screw is fixedly connected to the end of the positioning rod, the screw extends through the round hole of the sealing plate to the outside of the sealing plate, and a nut is threadedly connected to the extended part of the screw. Positioning pins are provided at the mounting holes corresponding to the sealing plate and the hydrophone positioning cylinder.

[0016] Furthermore, both the sealing cover and the airbag structure have a through-hole at their center, through which a communication cable is inserted. The end of the communication cable is connected to the hydrophone body. Waterproof gaskets are provided at the through-holes of the sealing cover and the airbag structure.

[0017] Furthermore, the upper inner side of the carbon fiber shell is integrally formed with a pressure-resistant component one, and the bottom inner side of the carbon fiber shell is integrally formed with a pressure-resistant component two. The carbon fiber shell, the connecting part one, the connecting part two, the sealing cap, the pressure-resistant component one, the pressure-resistant component two, and the sealing cap are all made of carbon fiber material.

[0018] Furthermore, the outer wall of the annular seal is provided with external threads, and the inner wall of the airbag structure is provided with internal threads. The airbag structure and the annular seal are connected and fixed by internal threads and external threads, respectively.

[0019] Furthermore, the airbag structure has an air inlet, and the airbag structure is filled with hydrogen gas through the air inlet.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, the present invention provides a pressure-resistant and weight-reducing vector hydrophone with a lightweight shell, which has the following advantages:

[0022] 1. This invention, by setting a hydrophone shell made of carbon fiber, incorporates two pressure-resistant components within the carbon fiber shell. These two components are integrally formed on the upper and lower inner sides of the shell, respectively. This achieves pressure resistance protection for the carbon fiber shell, resulting in superior pressure resistance and extending the lifespan of the hydrophone shell. The lightweight nature of carbon fiber facilitates the hydrophone's suspension in water. Furthermore, this invention features a threaded connection of an airbag structure to the sealing cap of the hydrophone shell. The airbag structure is filled with hydrogen gas, whose buoyancy effectively reduces the impact of the hydrophone's weight, making it lighter and more compact. The size of the airbag structure can be selected according to requirements, thus determining the actual weight of the hydrophone in water, facilitating its practical use. Therefore, this hydrophone possesses the advantages of being lightweight, pressure-resistant, and of high performance.

[0023] 2. This invention, by setting an annular hollow groove inside the carbon fiber shell, installs an anti-sway component and a hydrophone protection structure through the hollow groove. The hydrophone protection structure is installed on the anti-sway component, which provides anti-sway protection for the hydrophone protection structure, allowing it to extend, retract, and shake. When the hydrophone shell rolls and shakes in the water, the impact of the hydrophone protection structure is effectively reduced. The hydrophone protection structure is used for the installation and protection of the hydrophone body. The hydrophone body is set on the tension spring of the hydrophone protection structure, which has an elastic tension effect, reducing the shaking effect of the hydrophone body. The hydrophone protection structure is composed of a positioning rod, the hydrophone body, a tension spring, and a sealing plate, etc. It is easy to install and has good stability, and can be quickly installed and removed from the hydrophone positioning tube. This solves the problem of unsatisfactory anti-sway effect and poor protection effect of current hydrophones. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the anti-sway component in the present invention;

[0026] Figure 3 For the present invention Figure 2 Enlarged view of the structure at point A in the middle;

[0027] Figure 4 This is a schematic diagram of the hydrophone protection structure in this invention;

[0028] Figure 5 This is a schematic diagram of the assembled structure of the present invention.

[0029] In the diagram: 1. Carbon fiber shell; 2. Connecting part one; 3. Anti-sway component; 301. Limiting rod; 302. Sliding block; 303. Return spring; 304. Hydrophone positioning cylinder; 305. Bearing; 306. Track; 307. Mounting hole; 4. Hydrophone protection structure; 401. Positioning rod; 402. Ring body; 403. Hydrophone body; 404. Tension spring; 405. Lifting point one; 406. Sealing plate; 407. Lifting point two; 408. Nut; 409. Screw; 4010. Positioning pin; 5. Sealing cover; 6. Airbag structure; 7. Communication cable; 8. Annular seal; 9. Pressure-resistant component one; 10. Hollowed-out groove; 11. Pressure-resistant component two; 12. Connecting part two; 13. Sealing cap. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, an embodiment of the present invention proposes a pressure-resistant and weight-reducing vector hydrophone with a lightweight shell, comprising a carbon fiber shell 1, an anti-sway component 3, a hydrophone protection structure 4, a sealing cover 5, and a sealing cap 13. The carbon fiber shell 1 is supported by carbon fiber, is lightweight, and has good pressure resistance. The anti-sway component 3 is used for anti-sway protection of the hydrophone. The hydrophone protection structure 4 is used for the installation and shock absorption protection of the hydrophone. The sealing cover 5 and the sealing cap 13 are used for the protection of the ends of the carbon fiber shell 1 to prevent water ingress.

[0033] The sealing cover 5 is fixedly connected to the connecting part 2 at the top of the carbon fiber shell 1, and the upper surface of the sealing cover 5 is integrally formed with an annular sealing element 8. The annular sealing element 8 is threadedly connected to the airbag structure 6. The annular sealing element 8 is used for the installation of the airbag structure 6 on the sealing cover 5. The airbag structure 6 is connected to the annular sealing element 8 by means of threads, which makes assembly simple. The airbag structure 6 is filled with hydrogen gas, which can generate a certain buoyancy in the water, thereby reducing the overall weight of the device and allowing the hydrophone to be used while suspended in the water.

[0034] The sealing cap 13 is fixedly connected to the connecting part 2 12 at the bottom of the carbon fiber shell 1, so as to realize the protection function of the end of the carbon fiber shell 1;

[0035] The carbon fiber housing 1 has an annular hollow groove 10 inside. The anti-sway component 3 is fixedly connected to the hollow groove 10 of the carbon fiber housing 1. The anti-sway component 3 can reduce the impact of the carbon fiber housing 1 rolling and shaking, thereby protecting the hydrophone device. The anti-sway component 3 includes multiple limiting rods 301 fixedly connected to the carbon fiber housing 1 at the hollow groove 10. By setting the limiting rods 301, the limiting rods 301 can realize the sliding of the sliding block 302. Two sliding blocks 302 are slidably connected to each limiting rod 301. A shaft is fixedly connected to the corresponding sliding block 302 of the limiting rod 301. The hydrophone positioning cylinder 304 is fixedly connected inside the bearing 305. The sliding block 302 moves linearly on the limiting rod 301 to realize the movement of the hydrophone positioning cylinder 304 and the bearing 305, which can reduce the impact of vertical swaying. At the same time, the bearing 305 can realize the rotation of the hydrophone positioning cylinder 304. When the carbon fiber shell 1 rotates, the hydrophone positioning cylinder 304 will not rotate with it, thereby realizing the anti-rolling protection of the inner hydrophone protection structure 4, and thus realizing the protection of the hydrophone body 403, reducing the impact of external swaying, rolling and other factors.

[0036] The hydrophone protection structure 4 is installed on the hydrophone positioning cylinder 304. The hydrophone protection structure 4 includes two annular bodies 402 located inside the hydrophone positioning cylinder 304, and sealing plates 406 fixedly connected to the two ends of the hydrophone positioning cylinder 304. Positioning rods 401 are fixedly connected between the sealing plates 406 and the corresponding annular bodies 402. The positioning rods 401 are adapted to the track 306 opened in the hydrophone positioning cylinder 304. Tension springs 404 are connected to both annular bodies 402, and the hydrophone body 403 is installed between the ends of the tension springs 404. It should be noted that... The annular body 402 is used to fix the tension spring 404. The hydrophone body 403 is installed at the end of the tension spring 404. The tension spring 404 can realize the shock absorption protection of the hydrophone body 403 and absorb the vibration. The hydrophone body 403 does not come into contact with external objects, which can play a good role in shock absorption protection. By setting a positioning rod 401 between the annular body 402 and the sealing plate 406, the positioning rod 401 is adapted to the track 306 opened in the hydrophone positioning cylinder 304, which facilitates the installation of the hydrophone protection structure 4 on the hydrophone positioning cylinder 304. It is convenient and has good stability.

[0037] like Figure 2 As shown, in some embodiments, a return spring 303 is sleeved on the limiting rod 301, and the two ends of the return spring 303 are fixedly connected to the carbon fiber shell 1 and the sliding block 302, respectively. It should be noted that by fixing the return spring 303 between the sliding block 302 and the carbon fiber shell 1, the return spring 303 can play a role in relieving pressure on the sliding block 302. When the carbon fiber shell 1 shakes, the return spring 303 can absorb the vibration, so that the sliding block 302 slides on the limiting rod 301, causing the hydrophone positioning cylinder 304 and the bearing 305 to move, thereby avoiding the vibration of the hydrophone protection structure 4.

[0038] like Figure 4 As shown, in some embodiments, multiple lifting points 405 are fixedly connected to the circumference of the annular body 402, and multiple lifting points 407 are fixed on the hydrophone body 403. The two ends of the tension spring 404 are respectively fixed on the lifting points 405 and the lifting points 407. It should be noted that by setting the lifting points 405 and the lifting points 407, the tension spring 404 can be positioned and installed.

[0039] like Figure 3 and Figure 4As shown, in some embodiments, a screw 409 is fixedly connected to the end of the positioning rod 401. The screw 409 extends through the round hole of the sealing plate 406 to the outside of the sealing plate 406, and a nut 408 is threadedly connected to the extended portion of the screw 409. A positioning pin 4010 is provided at the mounting hole 307 corresponding to the sealing plate 406 and the hydrophone positioning cylinder 304. By providing a screw 409 at the end of the positioning rod 401 and fixing the screw 409 to the sealing plate 406 with a nut 408, the positioning rod 401 is fixed on the sealing plate 406. By providing a positioning pin 4010 at the mounting hole 307 corresponding to the sealing plate 406 and the hydrophone positioning cylinder 304, the sealing plate 406 can be fixed on the end of the hydrophone positioning cylinder 304, thereby realizing the installation of the hydrophone protection structure 4.

[0040] like Figure 1 As shown, in some embodiments, the sealing cover 5 and the airbag structure 6 are both provided with a through hole at the center, and a communication cable 7 is inserted through the hole. The end of the communication cable 7 is connected to the hydrophone body 403 for communication function of the hydrophone body 403. Waterproof gaskets are provided at the through holes of the sealing cover 5 and the airbag structure 6 to achieve a certain waterproof effect and prevent seawater penetration.

[0041] like Figure 1 As shown, in some embodiments, a pressure-resistant member 9 is integrally formed on the upper inner side of the carbon fiber shell 1, and a pressure-resistant member 11 is integrally formed on the bottom inner side of the carbon fiber shell 1. Both the pressure-resistant member 9 and the pressure-resistant member 11 are raised annular structures, which can realize the supporting function of the carbon fiber shell 1, thereby achieving the pressure resistance effect. The carbon fiber shell 1, the connecting part 2, the connecting part 12, the sealing cap 5, the pressure-resistant member 9, the pressure-resistant member 11, and the sealing cap 13 are all made of high-quality carbon fiber material. Carbon fiber material is lightweight, low in cost, and has good structural strength, making it suitable for use in hydrophones.

[0042] like Figure 1 As shown, in some embodiments, the outer wall of the annular seal 8 is provided with external threads, and the inner wall of the airbag structure 6 is provided with internal threads. The airbag structure 6 and the annular seal 8 are connected and fixed by internal threads and external threads respectively. This method can realize the threaded connection of the airbag structure 6 on the annular seal 8, which is convenient for disassembly and assembly and easy to use.

[0043] like Figure 1 As shown, in some embodiments, the airbag structure 6 has an air inlet, and the airbag structure 6 is filled with hydrogen through the air inlet. Hydrogen has good buoyancy in water, which can reduce the influence of the hydrophone's own weight.

[0044] The pressure-resistant component 9 and pressure-resistant component 11 mentioned in the text are reinforcing ribs or reinforcing beams integrally formed with the carbon fiber shell 1.

[0045] The working principle and usage steps of this invention are as follows: This invention uses an annular perforated groove 10 on the inner side of the carbon fiber shell 1 to install the limiting rod 301. When the carbon fiber shell 1 tumbles in the water, the presence of the bearing 305 minimizes the impact on the hydrophone positioning cylinder 304, thereby reducing the tumbling effect of the hydrophone protection structure 4. When the carbon fiber shell 1 shakes in the water, the sliding block 302 slides on the limiting rod 301. During shaking, the return spring 303 extends and retracts, providing shock absorption protection for the hydrophone protection structure 4. Simultaneously, the hydrophone body 403 also provides excellent shock absorption protection under the action of the tension spring 404. 4. The structure stretches and absorbs vibration, reducing the shaking of the hydrophone body 403. The installation of the hydrophone protection structure 4 in the hydrophone positioning cylinder 304 is simple. During assembly, the positioning rod 401 and the sealing plate 406 are separated. First, the positioning rod 401 is slid along the track 306 so that the positioning rod 401 extends into the hydrophone positioning cylinder 304. Then, the screw 409 at the end of the positioning rod 401 is extended to the hole in the sealing plate 406 and fixed with a nut 408. Then, the positioning pin 4010 is installed on the corresponding mounting holes 307 of the sealing plate 406 and the hydrophone positioning cylinder 304 to realize the installation and fixation of the hydrophone protection structure 4 on the hydrophone positioning cylinder 304. It is convenient.

[0046] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pressure-resistant, weight-reducing vector hydrophone with a lightweight housing, characterized in that: It includes a carbon fiber shell (1), an anti-shake assembly (3), a hydrophone protection structure (4), a sealing cover (5), and a sealing cap (13). The sealing cap (5) is fixedly connected to the connecting part (2) at the top of the carbon fiber shell (1), and the upper surface of the sealing cap (5) is integrally formed with an annular sealing element (8), and the annular sealing element (8) is threaded with an airbag structure (6). The sealing cap (13) is fixedly connected to the connecting part two (12) at the bottom of the carbon fiber shell (1); The carbon fiber shell (1) has an annular hollow groove (10) inside. The anti-sway component (3) is fixedly connected to the hollow groove (10) of the carbon fiber shell (1). The anti-sway component (3) includes multiple limiting rods (301) fixedly connected to the carbon fiber shell (1) at the hollow groove (10). Each limiting rod (301) has two sliding blocks (302) slidably connected to it. The sliding block (302) corresponding to the limiting rod (301) is fixedly connected to a bearing (305). The bearing (305) is fixedly connected to the inside of the hydrophone positioning cylinder (304). The hydrophone protection structure (4) is installed on the hydrophone positioning cylinder (304). The hydrophone protection structure (4) includes two annular bodies (402) located inside the hydrophone positioning cylinder (304) and sealing plates (406) fixedly connected to the two ends of the hydrophone positioning cylinder (304). A positioning rod (401) is fixedly connected between the sealing plate (406) and the corresponding annular body (402). The positioning rod (401) is adapted to the track (306) opened in the hydrophone positioning cylinder (304). A tension spring (404) is connected to each of the two annular bodies (402). The hydrophone body (403) is installed between the ends of the tension springs (404). A return spring (303) is sleeved on the limiting rod (301), and the two ends of the return spring (303) are fixedly connected to the carbon fiber shell (1) and the sliding block (302) respectively. The annular body (402) is fixedly connected to multiple suspension points one (405) in the circumferential direction, and multiple suspension points two (407) are fixed on the hydrophone body (403). The two ends of the tension spring (404) are respectively fixed on the suspension points one (405) and the suspension points two (407). The upper inner side of the carbon fiber shell (1) is integrally formed with a pressure-resistant component 1 (9), and the bottom inner side of the carbon fiber shell (1) is integrally formed with a pressure-resistant component 2 (11). The carbon fiber shell (1), the connecting part 1 (2), the connecting part 2 (12), the sealing cap (5), the pressure-resistant component 1 (9), the pressure-resistant component 2 (11) and the sealing cap (13) are all made of carbon fiber material. The outer wall of the annular seal (8) is provided with an external thread, and the inner wall of the airbag structure (6) is provided with an internal thread. The airbag structure (6) and the annular seal (8) are connected and fixed by internal and external threads respectively. The airbag structure (6) has an air inlet, and the airbag structure (6) is filled with hydrogen gas through the air inlet.

2. The pressure-resistant and weight-reducing vector hydrophone with a lightweight shell according to claim 1, characterized in that: The end of the positioning rod (401) is fixedly connected to a screw (409). The screw (409) extends through the round hole of the sealing plate (406) to the outside of the sealing plate (406). The extended part of the screw (409) is threadedly connected to a nut (408). A positioning pin (4010) is provided at the mounting hole (307) corresponding to the sealing plate (406) and the hydrophone positioning cylinder (304).

3. The pressure-resistant and weight-reducing vector hydrophone with a lightweight shell according to claim 1, characterized in that: Both the sealing cover (5) and the airbag structure (6) have a through hole at the center, through which a communication cable (7) is inserted. The end of the communication cable (7) is connected to the hydrophone body (403). Waterproof gaskets are provided at the through holes of the sealing cover (5) and the airbag structure (6).

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