Hydrophone with adjustable buoyancy

Abstract

The utility model discloses a hydrophone capable of adjusting buoyancy, which comprises a hydrophone body, the lower end of the hydrophone body is fixedly connected with a mounting plate, the lower surface of the mounting plate is fixedly connected with an electric telescopic rod and an annular air bag, the electric telescopic rod is positioned in the annular air bag, and the surface of the annular air bag is provided with a sealing ring. The end, away from the mounting plate, of the electric telescopic rod is fixedly connected with a gland, the end, close to the electric telescopic rod, of the gland is fixedly connected with the end, away from the mounting plate, of the annular air bag, and the diameter of the gland and the diameter of the mounting plate are larger than the diameter of the annular air bag. A plurality of water inlet holes are formed in the surface of the annular air bag, and when the hydrophone is used, a water source enters the annular air bag through the water inlet holes. Through the structure, the buoyancy of the hydrophone in the using process is changed by changing the overall weight of the hydrophone, and the convenience of using and recycling the hydrophone is improved.

Description

Technical Field

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

[0002] A hydrophone is a device used to detect and record underwater sound waves. However, general hydrophones lack measures to change buoyancy during use, resulting in the hydrophone being unable to function in waters of different depths, affecting the applicability of the hydrophone. A "zero-buoyancy hydrophone" disclosed on the China Patent Network, with application number "202223389680.X," reduces its buoyancy by setting a weight at the bottom. However, during use, the user needs to pull the hydrophone downward to control its height, and cannot directly change its buoyancy. Utility Model Content

[0003] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art and to provide a hydrophone with adjustable buoyancy, which facilitates changing the total weight and force-bearing area of ​​the hydrophone underwater, thereby achieving the purpose of changing the buoyancy and falling and rising effects of the hydrophone, and improving the convenience of using and recovering the hydrophone.

[0004] The present utility model also provides a hydrophone with the above-mentioned adjustable buoyancy, comprising: a hydrophone body, the lower end of the hydrophone body being fixedly connected to a mounting plate, the lower surface of the mounting plate being fixedly connected to an electric telescopic rod and an annular airbag, the electric telescopic rod being located inside the annular airbag, and a sealing ring being provided on the surface of the annular airbag. When the hydrophone is used, the sealing ring is located at the connection between the annular airbag and the mounting plate, the end of the electric telescopic rod away from the mounting plate being fixedly connected to a pressure cap, the end of the pressure cap close to the electric telescopic rod being fixedly connected to the end of the annular airbag away from the mounting plate, the diameters of the pressure cap and the mounting plate being larger than the diameter of the annular airbag, the surface of the annular airbag being provided with a plurality of water inlet holes. When the hydrophone is used, water enters the interior of the annular airbag through the water inlet holes.

[0005] In the adjustable buoyancy hydrophone of the present invention, the annular airbag, the mounting plate, and the gland cooperate to form a water storage area and a sealed isolation area. The electric telescopic rod is located within the sealed isolation area. When the hydrophone is in use, the electric telescopic rod does not come into contact with the water source in the annular airbag, thereby reducing the risk of damage to the electric telescopic rod.

[0006] According to the utility model, the diameter of the inner ring of the annular airbag is larger than the diameter of the telescopic end of the electric telescopic rod, and the surface of the annular airbag is provided with multiple creases. When the hydrophone is in use, the inner wall of the annular airbag does not contact the electric telescopic rod, thereby improving the smoothness of the annular airbag's expansion and contraction.

[0007] According to the hydrophone with adjustable buoyancy described in the utility model, a bump is fixedly connected to a surface of the gland close to the electric telescopic rod, and the bump is in close contact with the inner ring surface of the annular airbag, thereby improving the sealing effect of the inner ring of the annular airbag.

[0008] According to the utility model, a reinforcing rod is fixedly connected to the surface of the gland near the electric telescopic rod. The end of the reinforcing rod, which is away from the gland, extends into the water storage area of ​​the annular airbag and is fixedly connected to the mounting plate, thereby improving the telescopic stability of the annular airbag.

[0009] According to the hydrophone with adjustable buoyancy described in the utility model, a reinforcement tube is fixedly connected to the inner wall of the water inlet, and the reinforcement tube is a folded portion protruding from the annular airbag, thereby improving the effect of the water inlet.

[0010] According to the utility model of the hydrophone with adjustable buoyancy, the reinforcing tube is a plastic hose, the reinforcing rod is a plastic telescopic rod, and the sealing ring is fixed to the connection between the mounting plate and the annular airbag by adhesive, thereby reducing the cost of repairing the hydrophone.

[0011] Beneficial effects:

[0012] Compared with the existing technology, this hydrophone with adjustable buoyancy forms a compressed breathing structure through the mounting plate, electric telescopic rod, annular airbag, pressure cover, and water inlet hole to collect and discharge water, thereby changing the weight of the hydrophone to achieve the purpose of changing the buoyancy of the hydrophone. The force-bearing area of ​​the annular airbag in the fully extended state and the fully contracted state is correspondingly reduced and increased to achieve the effect of changing the buoyancy of the hydrophone. The protrusions and sealing rings improve the sealing effect of important components of the hydrophone and reduce the hidden dangers of damage to important components of the hydrophone. The reinforcing rods and reinforcing tubes improve the stability of important components of the hydrophone when they are in action, thereby improving the comfort of use of the hydrophone. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a bottom-up structural diagram of an adjustable buoyancy hydrophone according to the present invention;

[0015] Figure 2 This is a top view of the assembled structure of a hydrophone with adjustable buoyancy according to the utility model;

[0016] Figure 3 This is a front view of the structure of a hydrophone with adjustable buoyancy in a disassembled state according to the utility model;

[0017] Figure 4This is a top view of the back of a hydrophone with adjustable buoyancy in a disassembled state according to the utility model.

[0018] Legend:

[0019] 1. Hydrophone body; 2. Mounting plate; 3. Gland; 4. Annular airbag; 5. Water inlet; 6. Reinforcement tube; 7. Sealing ring; 8. Electric telescopic rod; 9. Reinforcement rod; 10. Bump. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0021] Reference Figure 1-4 The embodiment of the present utility model is a hydrophone with adjustable buoyancy, which includes: a hydrophone body 1, a mounting plate 2 fixedly connected to the lower end of the hydrophone body 1, an electric telescopic rod 8 and an annular airbag 4 fixedly connected to the lower surface of the mounting plate 2, the electric telescopic rod 8 is located inside the annular airbag 4, the annular airbag 4 itself cooperates with the mounting plate 2 and the pressure cover 3 to form a water storage area and a sealed isolation area, the electric telescopic rod 8 is located inside the sealed isolation area, when the hydrophone is in use, the electric telescopic rod 8 does not contact the water source in the annular airbag 4, the diameter of the inner ring of the annular airbag 4 is larger than the diameter of the telescopic end of the electric telescopic rod 8, and the surface of the annular airbag 4 is provided with multiple folds, when the hydrophone is in use, the inner wall of the annular airbag 4 does not contact the electric telescopic rod 8, the above components cooperate with each other to provide basic conditions for changing the weight and force area of ​​the hydrophone, wherein the electric telescopic rod 8 is used to provide the pressure cover 3 with the force to compress and stretch the annular airbag 4, and the annular airbag 4 is used to store water and isolate and protect the electric telescopic rod 8.

[0022] A sealing ring 7 is provided on the surface of the annular airbag 4. When the water listening device is used, the sealing ring 7 is located at the connection between the annular airbag 4 and the mounting plate 2. The sealing ring 7 is fixed to the connection between the mounting plate 2 and the annular airbag 4 by an adhesive. The sealing ring 7 is used to improve the sealing effect between the mounting plate 2 and the annular airbag 4.

[0023] The end of the electric telescopic rod 8 away from the mounting plate 2 is fixedly connected to a pressure cover 3, and the end of the pressure cover 3 close to the electric telescopic rod 8 is fixedly connected to the end of the annular airbag 4 away from the mounting plate 2. The diameters of the pressure cover 3 and the mounting plate 2 are larger than the diameter of the annular airbag 4. The pressure cover 3 and the mounting plate 2 cooperate with each other to provide a force point for the annular airbag 4 and seal the inner ring space of the annular airbag 4. The side of the pressure cover 3 close to the electric telescopic rod 8 is fixedly connected to a protrusion 10. The protrusion 10 is in close contact with the inner ring surface of the annular airbag 4. The protrusion 10 improves the sealing effect of the sealed isolation area. The side of the pressure cover 3 close to the electric telescopic rod 8 is fixedly connected to a reinforcement rod 9. The end of the reinforcement rod 9 away from the pressure cover 3 passes through the interior of the water storage area of ​​the annular airbag 4 and is fixedly connected to the mounting plate 2. The reinforcement rod 9 is a telescopic rod made of plastic. The reinforcement rod 9 is used to improve the sliding stability of the pressure cover 3 when it is in action and reduce the abnormal deformation of the annular airbag 4.

[0024] The surface of the annular airbag 4 is provided with multiple water inlet holes 5. When the hydrophone is used, the water source enters the interior of the annular airbag 4 through the water inlet holes 5. The water inlet holes 5 are used to provide conditions for the water source to enter the water storage area in the annular airbag 4. The inner wall of the water inlet hole 5 is fixedly connected with a reinforcing tube 6. The reinforcing tube 6 is a folded part protruding from the annular airbag 4. The reinforcing tube 6 is a plastic hose. The reinforcing tube 6 is used to support the water inlet hole 5 to improve the stability of the water inlet hole 5.

[0025] Working principle: During the sinking process of the hydrophone, it is necessary to reduce the buoyancy effect on the hydrophone. At this time, the electric telescopic rod 8 is controlled to extend and retract. During the extension and retraction process of the electric telescopic rod 8, the pressure cover 3 is repeatedly moved closer to and away from the mounting plate 2, thereby achieving the effect of compressing and stretching the annular airbag 4. The water source near the annular airbag 4 is subjected to the stress generated during the extension and retraction process of the annular airbag 4 and is brought into the water storage area of ​​the annular airbag 4, thereby increasing the weight of the hydrophone. At the same time, the force-bearing area of ​​the annular airbag 4 in the fully extended state is reduced, thereby reducing the buoyancy of the hydrophone. When recovering the hydrophone, it is necessary to increase the buoyancy of the hydrophone. At this time, the electric telescopic rod 8 is used to fully compress the annular airbag 4, thereby discharging the water source in the water storage area through the water inlet hole 5. At this time, the weight of the hydrophone is reduced and the folded part of the annular airbag 4 in the contracted state protrudes. At this time, the force-bearing area of ​​the annular airbag 4 is increased, thereby achieving the purpose of increasing the buoyancy of the hydrophone.

[0026] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A hydrophone with adjustable buoyancy, characterized in that: include: A hydrophone body (1), wherein the lower end of the hydrophone body (1) is fixedly connected to a mounting plate (2), the lower surface of the mounting plate (2) is fixedly connected to an electric telescopic rod (8) and an annular airbag (4), the electric telescopic rod (8) is located inside the annular airbag (4), and a sealing ring (7) is provided on the surface of the annular airbag (4); when the hydrophone is in use, the sealing ring (7) is located at the connection between the annular airbag (4) and the mounting plate (2); The end of the electric telescopic rod (8) away from the mounting plate (2) is fixedly connected to a pressure cover (3), and the end of the pressure cover (3) close to the electric telescopic rod (8) is fixedly connected to the end of the annular airbag (4) away from the mounting plate (2). The diameters of the pressure cover (3) and the mounting plate (2) are larger than the diameter of the annular airbag (4). The surface of the annular airbag (4) is provided with a plurality of water inlet holes (5). When the hydrophone is used, water enters the interior of the annular airbag (4) through the water inlet holes (5).

2. The buoyancy-adjustable hydrophone according to claim 1, characterized in that: The annular airbag (4) cooperates with the mounting plate (2) and the gland (3) to form a water storage area and a sealed isolation area. The electric telescopic rod (8) is located inside the sealed isolation area. When the hydrophone is used, the electric telescopic rod (8) does not come into contact with the water source in the annular airbag (4).

3. The buoyancy-adjustable hydrophone according to claim 1, characterized in that: The diameter of the inner ring of the annular airbag (4) is larger than the diameter of the telescopic end of the electric telescopic rod (8), and a plurality of folds are provided on the surface of the annular airbag (4). When the hydrophone is used, the inner wall of the annular airbag (4) does not contact the electric telescopic rod (8).

4. The buoyancy-adjustable hydrophone according to claim 1, characterized in that: A convex block (10) is fixedly connected to a side of the pressure cover (3) close to the electric telescopic rod (8), and the convex block (10) is in close contact with the inner ring surface of the annular airbag (4).

5. The buoyancy-adjustable hydrophone according to claim 3, characterized in that: A reinforcing rod (9) is fixedly connected to a side of the gland (3) close to the electric telescopic rod (8), and an end of the reinforcing rod (9) away from the gland (3) penetrates into the water storage area of ​​the annular airbag (4) and is fixedly connected to the mounting plate (2).

6. The buoyancy-adjustable hydrophone according to claim 5, characterized in that: The inner wall of the water inlet hole (5) is fixedly connected with a reinforcement tube (6), and the reinforcement tube (6) is a folded portion protruding from the annular airbag (4).

7. The buoyancy-adjustable hydrophone according to claim 6, characterized in that: The reinforcing tube (6) is a plastic hose, the reinforcing rod (9) is a telescopic rod made of plastic, and the sealing ring (7) is fixed to the connection between the mounting plate (2) and the annular airbag (4) by an adhesive.

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