High-pressure-resistance sealed shell transducer adapting to deep sea low temperature
By designing a cover mechanism and a pressure equalization mechanism, the sealing and pressure regulation problems of deep-sea transducers in low-temperature and high-pressure environments are solved, achieving higher equipment reliability and ease of maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-17
AI Technical Summary
Existing deep-sea transducers are prone to sealing failure in low-temperature environments and have a high risk of leakage in high-pressure environments. Furthermore, they lack temperature compensation mechanisms and active pressure regulation, which increases the reliability and maintenance difficulty of the equipment.
The design incorporates a sleeve mechanism and a pressure equalization mechanism, including components such as a protective sleeve, threaded gasket, threaded cover, expansion plate, limit pin, support spring, and pneumatic tube. Sealing and pressure regulation are achieved through threaded rotation and pneumatic pressure balance, enhancing sealing performance and stability.
It improves the sealing and pressure balance capabilities in deep-sea low-temperature environments, reduces the risk of leakage, and enhances the reliability and ease of maintenance of the equipment.
Smart Images
Figure CN224006796U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transducer technology, and in particular to a high-pressure-resistant sealed shell transducer adapted to the low temperature of deep sea. Background Technology
[0002] Transducers with high-pressure-resistant sealed shells adapted to the low temperatures of the deep sea are core components in deep-sea resource exploration, polar scientific research, and underwater unmanned equipment. They must ensure the stability and long-term reliability of signal conversion in the high-pressure, low-temperature (0-4℃), and salt-corrosion environments of the deep sea at depths of thousands of meters. Traditional deep-sea transducers mostly use titanium alloy or composite material shells, which resist external pressure through rigid structural sealing. However, under low-temperature conditions, the imbalance between the material's shrinkage and the elasticity of the seals can easily lead to micro-cracks at the joints, and the high-pressure environment can exacerbate the risk of leakage.
[0003] Existing deep-sea transducer housing designs suffer from the following significant drawbacks: the sealing structure relies on solidified welding or static flange connections, lacking a temperature compensation mechanism; threaded fasteners are prone to breakage due to the cold brittleness of metal in the low-temperature environment of the deep sea, leading to seal failure; the internal air pressure is dynamically imbalanced with the deep-sea environment pressure; conventional housings lack active pressure regulation components; when the equipment is returned to a normal pressure environment, sudden changes in the internal and external pressure difference may cause the protective sleeve to burst or internal components to collapse; the integration design of the protective sleeve and functional modules (such as signal converters and terminals) is insufficient, requiring complete disassembly for component maintenance or replacement, damaging the original sealing layer and further reducing pressure resistance life. Therefore, we provide a high-pressure-resistant sealed housing transducer adapted to the low temperatures of the deep sea. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a high-pressure-resistant sealed shell transducer that is adapted to the low temperature of the deep sea.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-pressure-resistant sealed shell transducer adapted to deep-sea low temperatures, comprising: a transducer mechanism, the transducer mechanism including a transducer device, a docking device provided at one end of the transducer device, an installation tube provided on the side of the docking device away from the transducer device, and a cover mechanism provided on the outer surface of the transducer device.
[0006] A cover mechanism includes a protective sleeve, one end of which is provided with a threaded washer, and the outer surface of the threaded washer is provided with a threaded cap.
[0007] In a preferred embodiment, pressure equalization mechanisms are provided on both sides of the outer surface of the mounting tube. Each pressure equalization mechanism includes an expansion plate, a limit pin is provided on one side of the expansion plate, a support spring is provided on the outer surface of the limit pin, a pneumatic storage tube is provided on the outer surface of the support spring, and a connecting air nozzle is provided at one end of the pneumatic storage tube.
[0008] In a preferred embodiment, one end of the expansion plate is welded to the mounting tube, one end of the limiting pin is cast into one side of the expansion plate, the inner surface of the support spring is nested in the outer surface of the limiting pin, the outer surface of the support spring is nested in the pneumatic tube, and the two ends of the docking nozzle are respectively docked between the pneumatic tube and the protective sleeve.
[0009] In a preferred embodiment, one side of the docking device is welded and attached to one end of the transducer, and one end of the mounting tube is connected to the side of the docking device away from the transducer.
[0010] In a preferred embodiment, the inner surface of the protective sleeve is nested within the outer surface of the transducer, and one side of the threaded washer is fitted and cast onto one end of the transducer.
[0011] In a preferred embodiment, the inner surface of the threaded cover is mated to the outer surface of the threaded washer for threaded rotation adjustment.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] This invention involves nesting the inner surface of a protective sleeve within the outer surface of a transducer, then connecting one end of a connector to the transducer and installing an installation tube at the end of the connector furthest from the transducer. One end of a threaded washer is cast onto the protective sleeve, and a threaded cap is connected to the threaded washer, allowing for threaded rotation and sealing during use. One end of an extension plate is cast onto the installation tube, and one end of a limiting pin is welded to the extension plate. The inner surface of a support spring is nested within the protective sleeve, and the inner surface of a pneumatic tube is installed on the outer surface of the support spring. Finally, the operator simply connects the two ends of the connecting nozzle between the pneumatic tube and the protective sleeve. When the protective sleeve is used, external air pressure compresses it inward, and the pressure in the protective sleeve is transmitted to the pneumatic tube through the connecting nozzle. After removal, the gas in the pneumatic tube is re-injected into the protective sleeve for pressure balance, thus improving its practicality in actual use. Attached Figure Description
[0014] Figure 1 This utility model provides a structural schematic diagram of a high-pressure-resistant sealed shell transducer adapted to the low temperatures of the deep sea.
[0015] Figure 2 This is an exploded view of the structure of a high-pressure-resistant sealed shell transducer adapted to the low temperature of the deep sea, which is provided by this utility model.
[0016] Figure 3 This utility model provides a schematic diagram of the transducer mechanism of a high-pressure-resistant sealed shell transducer adapted to the low temperature of the deep sea.
[0017] Figure 4 This utility model provides a schematic diagram of the cover mechanism and pressure equalization mechanism for a high-pressure-resistant sealed shell transducer adapted to the low temperature of deep sea.
[0018] Legend:
[0019] 1. Energy transducer; 11. Energy transducer; 12. Connector; 13. Mounting pipe;
[0020] 2. Covering mechanism; 21. Protective sleeve; 22. Threaded washer; 23. Threaded cover sleeve;
[0021] 3. Pressure equalization mechanism; 31. Expansion plate; 32. Limiting pin; 33. Support spring; 34. Air pressure pipe; 35. Connecting air nozzle. Detailed Implementation
[0022] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings and examples.
[0023] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.
[0024] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected through a transitional structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0026] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Example
[0027] like Figure 1-4 As shown, this utility model provides a technical solution: a high-pressure-resistant sealed shell transducer adapted to deep-sea low temperature, including: a transducer mechanism 1, the transducer mechanism 1 including a transducer device 11, a docking device 12 is provided at one end of the transducer device 11, an installation tube 13 is provided on the side of the docking device 12 away from the transducer device 11, and a cover mechanism 2 is provided on the outer surface of the transducer device 11.
[0028] The cover mechanism 2 includes a protective sleeve 21, one end of which is provided with a threaded washer 22, and the outer surface of the threaded washer 22 is provided with a threaded cover sleeve 23;
[0029] Both sides of the outer surface of the mounting tube 13 are provided with pressure equalization mechanism 3. The pressure equalization mechanism 3 includes an expansion plate 31. A limit pin 32 is provided on one side of the expansion plate 31. A support spring 33 is provided on the outer surface of the limit pin 32. A pneumatic storage tube 34 is provided on the outer surface of the support spring 33. A docking nozzle 35 is provided at one end of the pneumatic storage tube 34.
[0030] One end of the expansion plate 31 is welded to the mounting tube 13, one end of the limiting pin 32 is cast into one side of the expansion plate 31, the inner surface of the support spring 33 is nested in the outer surface of the limiting pin 32, the outer surface of the support spring 33 is nested in the air pressure storage tube 34, and the two ends of the connecting air nozzle 35 are respectively connected between the air pressure storage tube 34 and the protective sleeve 21.
[0031] One side of the connector 12 is cast and bonded to one end of the transducer 11. One end of the mounting tube 13 is connected to the side of the connector 12 away from the transducer 11. The inner surface of the protective sleeve 21 is nested on the outer surface of the transducer 11. One side of the threaded washer 22 is bonded and cast to one end of the transducer 11. The inner surface of the threaded cover 23 is connected to the outer surface of the threaded washer 22 for threaded rotation adjustment.
[0032] In this embodiment, when the operator uses this transducer for sealing, the operator can nest the inner surface of the protective sleeve 21 onto the outer surface of the transducer 11, then connect one end of the connector 12 to the transducer 11, and install the mounting tube 13 at the end of the connector 12 away from the transducer 11. One end of the threaded washer 22 is cast onto the protective sleeve 21, and the threaded cover 23 is connected to the threaded washer 22, thus enabling threaded rotation sealing during actual use. One end of the expansion plate 31 is cast onto the mounting tube 13, and one end of the limiting pin 32 is welded to... On the expansion plate 31, the inner surface of the support spring 33 is nested and the inner surface of the air pressure tube 34 is installed on the outer surface of the support spring 33. Finally, the operator only needs to connect the two ends of the connecting air nozzle 35 between the air pressure tube 34 and the protective sleeve 21 respectively. When the operator uses it, when the external air pressure squeezes inward, the pressure in the protective sleeve 21 will be transmitted to the air pressure tube 34 through the connecting air nozzle 35. After that, the gas in the air pressure tube 34 will be re-injected into the protective sleeve 21 to balance the air pressure, thereby improving its practicality in actual use.
[0033] Working principle:
[0034] like Figure 1-4 As shown, when the operator performs the sealing operation of this transducer, firstly, the inner surface of the protective sleeve 21 is nested into the outer surface of the transducer 11 to ensure a tight fit between the protective sleeve 21 and the transducer 11. Next, the operator connects one end of the connector 12 to the transducer 11 and fixes the mounting tube 13 to the end of the connector 12 away from the transducer 11 to form a stable connection.
[0035] To achieve a tight seal, one end of the threaded washer 22 is fixed to the protective sleeve 21 by casting. Then, the threaded cover 23 is connected to the threaded washer 22 via a mating connection, ensuring a seal is achieved through threaded rotation during actual use. This design effectively prevents gas or liquid leakage during transducer operation, ensuring stable sealing performance.
[0036] To further enhance the structure and function of the sealing device, one end of the expansion plate 31 is fixed to the mounting pipe 13 by casting. One end of the limiting pin 32 is welded to the expansion plate 31, ensuring accurate alignment of all components and limiting excessive movement during installation, thus increasing the stability and precision of the equipment. The inner surface of the support spring 33 is designed to nest within the inner surface of the pneumatic tube 34, and the inner surface of the pneumatic tube 34 mates with the outer surface of the support spring 33 to form a precise sealing and support system.
[0037] In this system, the operators connect the two ends of the connecting nozzle 35 between the pressure reservoir pipe 34 and the protective sleeve 21, respectively, ensuring smooth gas flow within the sealed system. When external air pressure acts on the protective sleeve 21, the pressure within the protective sleeve 21 is transmitted to the pressure reservoir pipe 34 through the connecting nozzle 35, achieving pressure conduction and balance. When the gas is removed, the gas in the pressure reservoir pipe 34 is re-injected into the protective sleeve 21, ensuring the restoration of pressure balance. This design allows the transducer to self-regulate air pressure during use, preventing seal failure due to air pressure fluctuations.
[0038] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0039] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A high pressure resistant hermetically sealed enclosure transducer adapted for deep sea low temperature operation, characterized by, Include: Transducer mechanism (1), the transducer mechanism (1) includes transducer device (11), one end of the transducer device (11) is provided with a docking device (12), the docking device (12) is provided with a mounting tube (13) away from the side of the transducer device (11), the outer surface of the transducer device (11) is provided with a cover mechanism (2); Cover mechanism (2), including protective sleeve (21), one end of the protective sleeve (21) is provided with a threaded spacer ring (22), the outer surface of the threaded spacer ring (22) is provided with a threaded cover (23).
2. A high pressure resistant hermetically sealed transducer adapted for low temperature of deep sea according to claim 1, characterized in that: Both sides of the outer surface of the mounting tube (13) are provided with equal pressure mechanism (3), the equal pressure mechanism (3) includes expansion plate (31), one side of the expansion plate (31) is provided with a limit pin (32), the outer surface of the limit pin (32) is provided with a support spring (33), the outer surface of the support spring (33) is provided with a gas pressure pipe (34), one end of the gas pressure pipe (34) is provided with a docking air nozzle (35).
3. A high pressure resistant hermetically sealed transducer adapted for low temperature of deep sea according to claim 2, characterized in that: One end of the expansion plate (31) is welded on the mounting tube (13), one end of the limit pin (32) is cast on one side of the expansion plate (31), the inner surface of the support spring (33) is nested on the outer surface of the limit pin (32), the outer surface of the support spring (33) is nested in the gas pressure pipe (34), both ends of the docking air nozzle (35) are respectively docked between the gas pressure pipe (34) and the protective sleeve (21).
4. The high pressure resistant hermetically sealed transducer adapted for low temperature of deep sea according to claim 1, characterized in that: One side of the docking device (12) is cast and attached to one end of the transducer device (11), one end of the mounting tube (13) is docked on the side of the docking device (12) away from the transducer device (11).
5. The high pressure resistant hermetically sealed transducer adapted for low temperature of deep sea according to claim 1, characterized in that: The inner surface of the protective sleeve (21) is nested on the outer surface of the transducer device (11), one side of the threaded spacer ring (22) is cast and attached to one end of the transducer device (11).
6. A high pressure resistant hermetically sealed transducer adapted for low temperature of deep sea according to claim 1, characterized in that: The inner surface of the threaded cover (23) is docked on the outer surface of the threaded spacer ring (22) for threaded rotation adjustment.