Hydrophone with protection device

Abstract

The utility model relates to a hydrophone with a protection device, which comprises a hydrophone and a protection device, and the protection device is of a semi-closed structure and is preferably made of sound-permeable and water-permeable plastic. The protection device can transmit sound, so that the hydrophone can conveniently collect sound signals, and the protection device basically has no influence on the sound performance in the working frequency band of the hydrophone. The hydrophone is installed in the protection device, and the hydrophone is elastically connected with the protection device, so that a damping effect is achieved, the hydrophone can be prevented from being directly exposed, and impact force can be prevented from directly acting on the hydrophone in an elastic connection mode. When the hydrophone is installed and transported, the probability that the hydrophone is accidentally scratched to cause water entering after water entering and the risk that the interior of the hydrophone is damaged due to accidental falling can be effectively reduced; when the hydrophone works underwater, the protection device can effectively protect large objects from being impacted by water flow, and the situation that piezoelectric ceramics in the hydrophone are damaged due to impact is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrophones, in particular to a hydrophone with a protective device. Background Art

[0002] Hydrophones, also known as receiving transducers, can convert acoustic signals in water into electrical signals. Hydrophones are widely used in underwater communications, detection, target positioning, tracking, etc. They are important components of sonar. Underwater detection, identification, communication, marine environment monitoring, and the development of marine resources are all inseparable from hydroacoustic transducers.

[0003] During the installation and transportation of the hydrophone, there is a risk of accidental scratches and accidental falls, resulting in internal damage and failure. When the hydrophone is working underwater, it is easy for the hydrophone to be damaged and fail due to the impact of large objects brought by the water flow. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a hydrophone with a protective device, which solves the technical problems that the hydrophone is easily scratched, damaged by accidental falling, and damaged by impact of underwater objects.

[0006] (II) Technical solution

[0007] In order to achieve the above object, the hydrophone with a protective device of the utility model comprises a hydrophone and a protective device, wherein the hydrophone is arranged inside the protective device, the hydrophone is elastically connected to the protective device, and the protective device is sound-permeable.

[0008] Optionally, the protection device comprises a side protection member, an upper protection member and a lower protection member;

[0009] The side protection member is cylindrical and sound-permeable, the upper protection member is connected to a first end of the side protection member, and the lower protection member is connected to a second end of the side protection member;

[0010] The upper protective member and the lower protective member are both elastically connected to the hydrophone.

[0011] Optionally, the side protection member is in a grid shape.

[0012] Optionally, the side protection member includes a plurality of protection columns arranged around the hydrophone, a first end of each protection column is connected to the upper protection member, and a second end of each protection column is connected to the lower protection member.

[0013] Optionally, the number of the protection columns is six.

[0014] Optionally, the upper protective member and the lower protective member are both disc-shaped, and the centers of the upper protective member and the lower protective member are both opened, and the connecting wires of the hydrophone can pass through the openings.

[0015] Optionally, a plurality of through holes are formed on the upper protective member and / or the lower protective member, and the through holes can be used as interfaces for mounting on a carrier.

[0016] Optionally, flexible connection devices are provided at both ends of the hydrophone, and the flexible connection devices are connected to the protection device.

[0017] Optionally, the flexible connecting device includes a connecting ring and multiple connecting arms, the connecting ring is connected to the protective device, the first end of the connecting arm is connected to the hydrophone, the second end of the connecting arm is connected to the connecting ring, and the connecting arm and / or the connecting ring are made of flexible material.

[0018] Optionally, the protection device is spherical, and the wall surface of the protection device is a grid, and the hydrophone is connected to the inner wall of the protection device through a plurality of symmetrically arranged flexible arms.

[0019] A mounting plane is arranged on the wall surface of the protection device, and a plurality of mounting holes and at least one threading hole are opened on the mounting plane.

[0020] (III) Beneficial effects

[0021] The hydrophone is installed inside the protective device, and the hydrophone is elastically connected to the protective device, which has a shock-absorbing effect, which can not only prevent the hydrophone from being directly exposed, but also prevent the impact force from directly acting on the hydrophone through the form of elastic connection. During the installation and transportation of the hydrophone, the probability of the hydrophone being accidentally scratched and causing water to enter the water after entering the water, and the risk of accidental falling and causing internal damage to the hydrophone can be effectively reduced; when the hydrophone is working underwater, the protective device can effectively protect the water flow from the impact of large objects, and reduce the possibility of damage to the internal piezoelectric ceramics of the hydrophone due to impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of the first embodiment of the hydrophone with a protective device of the utility model;

[0023] Figure 2 It is a cross-sectional view of the first embodiment of the hydrophone with a protective device of the utility model;

[0024] Figure 3 It is a bottom view of the first embodiment of the hydrophone with a protective device of the utility model.

[0025] [Description of Reference Numerals]

[0026] 1: upper protective part; 2: hydrophone; 3: protective column; 4: lower protective part. DETAILED DESCRIPTION

[0027] In order to better explain the utility model and facilitate understanding, the utility model is described in detail below with reference to the accompanying drawings and through specific implementation methods. Figure 1 The orientation is used as a reference.

[0028] Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0029] like Figure 1-3 As shown, the utility model provides a hydrophone with a protective device, which is used to be installed on underwater equipment to convert acoustic signals in the water into electrical signals, and is applied to underwater detection, identification, communication, marine environment monitoring, and development of marine resources. The hydrophone with a protective device includes a hydrophone 2 and a protective device. The protective device is a semi-enclosed structure, preferably a sound-permeable and water-permeable plastic. The protective device is sound-permeable, which facilitates the hydrophone 2 to collect sound signals, thereby ensuring that the protective device has basically no effect on the acoustic performance of the hydrophone 2 within the working frequency band. The hydrophone 2 is installed inside the protective device, and the hydrophone 2 is elastically connected to the protective device, which has a shock-absorbing effect, which can not only prevent the hydrophone 2 from being directly exposed, but also prevent the impact force from directly acting on the hydrophone 2 through the form of elastic connection. During the installation and transportation of the hydrophone 2, the probability of the hydrophone 2 being accidentally scratched and causing water to enter the water after entering the water, as well as the risk of accidentally falling and causing internal damage to the hydrophone 2 can be effectively reduced; when the hydrophone 2 is working underwater, the protective device can effectively protect the hydrophone 2 from the impact of large objects brought by the water flow, and reduce the possibility of damage to the internal piezoelectric ceramics of the hydrophone 2 due to impact.

[0030] Embodiment 1, as Figure 1 and Figure 2 As shown, the protection device includes a side protection member, an upper protection member 1 and a lower protection member 4. The side protection member is cylindrical and can be sound-permeable. The upper protection member 1 is detachably connected to the first end of the side protection member by bolts, and the lower protection member 4 is detachably connected to the second end of the side protection member by bolts, so as to improve the convenience of disassembly and assembly. The upper protection member 1 and the lower protection member 4 are elastically connected to the hydrophone 2. In a preferred embodiment, the side protection member is grid-shaped.

[0031] Furthermore, if Figure 2 and Figure 3As shown, the side protection member includes a plurality of protection columns 3 arranged around the hydrophone 2, the first end of the protection column 3 is connected to the upper protection member 1, and the second end of the protection column 3 is connected to the lower protection member 4. In a specific embodiment, the number of the protection columns 3 is six, and holes are provided on both the upper protection member 1 and the lower protection member 4. The plurality of protection columns 3 are connected together and tightened with screws. The upper protection member 1 and the lower protection member 4 are preferably made of engineering plastics. The protection columns 3 are also made of engineering plastics and have good sound transmission performance.

[0032] The upper protective member 1 and the lower protective member 4 have similar structures. Both the upper protective member 1 and the lower protective member 4 are disc-shaped, matching the shape of the cylindrical side protective member, and the center of both the upper protective member 1 and the lower protective member 4 is opened, and the connecting wires of the hydrophone 2 can pass through the opening of the upper protective member 1 or the lower protective member 4. The upper protective member 1 and / or the lower protective member 4 are provided with a plurality of through holes, which can be used as interfaces for installation on the carrier.

[0033] like Figure 2 As shown, flexible connection devices are provided at both ends of the hydrophone 2, and the flexible connection devices are connected to the protective device. Furthermore, the flexible connection device includes a connection ring and a plurality of connection arms, the connection ring is connected to the protective device, the first end of the connection arm is connected to the hydrophone 2, the second end of the connection arm is connected to the connection ring, and the connection arm and / or the connection ring are made of flexible material, which has a shock-absorbing effect on the hydrophone 2 and reduces the impact. In a preferred embodiment, a connection ring and a plurality of connection arms are poured with polyurethane at both ends of the hydrophone 2, the connection ring at one end is fixed between the upper protective member 1 and the first end of the protective column 3 by screws, and the connection ring at the other end is fixed between the lower protective member 4 and the second end of the protective column 3 by screws.

[0034] In the second embodiment, the protective device is spherical and includes upper and lower hemispheres that are detachably connected. The wall surface of the protective device is a grid, and the hydrophone 2 is connected to the inner wall of the protective device through a plurality of symmetrically arranged flexible arms. The flexible arms include a plurality of first flexible arms surrounding the side wall of the hydrophone 2, and at least one second flexible arm installed on the upper and lower end surfaces of the hydrophone 2. During installation, the flexible arm is first connected and fixed to the hydrophone 2 and then placed in the hemisphere, and then the upper and lower hemispheres are buckled together, and the first flexible arm, the upper hemisphere and the lower hemisphere are fixed together by bolts. Finally, the second flexible arm is connected and fixed to the corresponding hemisphere.

[0035] The wall surface of the protection device is provided with a mounting plane, on which a plurality of mounting holes and at least one threading hole are provided. The mounting holes are used to mount the protection device on the carrier, and the threading holes are used for the connecting wire of the hydrophone 2 to pass through.

[0036] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0039] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0040] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A hydrophone with a protective device, characterized in that: The hydrophone with a protective device comprises a hydrophone (2) and a protective device, the hydrophone (2) being arranged inside the protective device, the hydrophone (2) being elastically connected to the protective device, and the protective device being sound-permeable.

2. The hydrophone with a protective device according to claim 1, characterized in that: The protection device comprises a side protection member, an upper protection member (1) and a lower protection member (4); The side protection member is cylindrical and sound-permeable, the upper protection member (1) is connected to a first end of the side protection member, and the lower protection member (4) is connected to a second end of the side protection member; The upper protective member (1) and the lower protective member (4) are both elastically connected to the hydrophone (2).

3. The hydrophone with a protective device according to claim 2, characterized in that: The side protection member is in a grid shape.

4. The hydrophone with a protective device according to claim 2, characterized in that: The side protection member comprises a plurality of protection columns (3) arranged around the hydrophone (2), wherein the first end of the protection column (3) is connected to the upper protection member (1), and the second end of the protection column (3) is connected to the lower protection member (4).

5. The hydrophone with a protective device according to claim 4, characterized in that: The number of the protection columns (3) is six.

6. The hydrophone with a protective device according to claim 2, characterized in that: The upper protective member (1) and the lower protective member (4) are both disc-shaped, and the centers of the upper protective member (1) and the lower protective member (4) are both opened, and the connecting wires of the hydrophone (2) can pass through the openings.

7. The hydrophone with a protective device according to claim 2, characterized in that: The upper protective member (1) and / or the lower protective member (4) are provided with a plurality of through holes, and the through holes can be used as interfaces for mounting on a carrier.

8. The hydrophone with a protective device according to claim 1, characterized in that: Flexible connection devices are provided at both ends of the hydrophone (2), and the flexible connection devices are connected to the protection device.

9. The hydrophone with a protective device according to claim 8, characterized in that: The flexible connection device comprises a connection ring and a plurality of connection arms, the connection ring is connected to the protection device, the first end of the connection arm is connected to the hydrophone (2), the second end of the connection arm is connected to the connection ring, and the connection arm and / or the connection ring are made of flexible material.

10. The hydrophone with a protective device according to claim 1, characterized in that: The protective device is spherical, and the wall surface of the protective device is a grid. The hydrophone (2) is connected to the inner wall of the protective device via a plurality of symmetrically arranged flexible arms. A mounting plane is arranged on the wall surface of the protection device, and a plurality of mounting holes and at least one threading hole are opened on the mounting plane.

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