Novel mechanical locking type underwater glider pressure-resistant shell
By using a clamp structure in the pressure hull of the underwater glider to achieve mechanical locking, the problems of difficult installation and disassembly, large space occupation, and insufficient environmental protection of traditional connection methods are solved, resulting in a more efficient, stable, and environmentally friendly connection.
Patent Information
- Application Number
- CN202520208297.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Traditional underwater glider pressure hull connection methods suffer from problems such as difficult installation and disassembly, large space occupation, poor connection stability, and insufficient environmental friendliness.
It adopts two housing units connected axially and a clamp structure, and achieves mechanical locking through the clamp's recess and protrusion, replacing the traditional metal tension rod and nylon tension strip.
It simplifies the assembly and disassembly process, reduces space requirements, improves connection stability and environmental friendliness, enhances durability, and meets the requirements of green production and sustainable development.
Smart Images
Figure CN223812688U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to underwater glider technical field especially relates to a new -type mechanical locking type underwater gliding machine pressure hull. BACKGROUND
[0002] Underwater glider is a kind of unmanned underwater vehicle, is widely used in ocean exploration, scientific research and environmental monitoring and other fields. It uses the principle of underwater sliding, realizes the sliding movement in vertical direction by adjusting the buoyancy and gravity of itself, has the characteristics of high efficiency, energy saving. Underwater glider is often equipped with advanced sensors and communication equipment, is used for real-time acquisition of underwater data and transmission back to ground station, is widely used in marine environmental monitoring, marine climate research and deep sea exploration and other tasks. Its pressure hull as protective shell provides reliable protection for internal precision electronic components, ensures that the equipment can operate stably and complete the scheduled task under extreme water depth and complex sea conditions.
[0003] The pressure hull of underwater glider is mainly composed of front and rear end covers and 2 or 3 cylindrical shell cabin sections in the middle. The traditional pressure hull connection mode mainly relies on metal tension rod and nylon tension strip to be tensioned to ensure that the pressure hull can maintain the overall structure when bearing seawater pressure, and safely slide underwater. However, this connection mode has a series of defects and deficiencies.
[0004] Firstly, the traditional connection mode requires the cylindrical shell cabin section to pass through a metal tension rod in turn, and the metal tension rod needs to penetrate the entire cabin. Due to the slender structure of the tension rod, the assembly and disassembly process of the cabin section becomes complex and inconvenient. Especially when frequent assembly and disassembly are required, the operation is tedious and inefficient, which increases the difficulty of work. In addition, the length requirement of the metal tension rod also requires a larger axial space during the assembly of the glider, which puts additional space requirements on the design and operation, limiting the flexibility of the connection between the cabin sections.
[0005] Secondly, in the area where the metal tension rod does not act, the connection depends on the nylon tension strip. However, the tensioning effect of the nylon tension strip is not as stable as that of the metal tension rod, especially in long-term use, the nylon material may age or wear, which reduces the strength and stability of the connection, thereby affecting the safety of the pressure hull. In addition, the nylon tension strip needs to be coated with green oil to prevent marine organisms from attaching to the surface of the glider. The problem is that the green oil contains certain toxic substances, which has a negative impact on the green production and environmental protection goals of the glider, and may cause potential environmental hazards.
[0006] Therefore, the traditional connection mode not only increases the difficulty and space requirement in the assembly and disassembly process, but also has obvious deficiencies in the stability and environmental protection of the connection, and it is urgent to seek a more efficient, environmentally friendly and safe alternative solution. Practical new content
[0007] In view of the problems of traditional underwater glider pressure hull, such as difficult installation and disassembly, large space occupation, poor connection stability and environmental protection, the utility model provides a kind of.
[0008] The utility model is realized in this way, a kind of novel mechanical locking type underwater glider pressure hull, characterized by: including the two shell units of axial connection and the clamp for connecting the two shell units, the outside annular surface of the butt joint end portion of the two shell units is equipped with embedding card recess, the clamp forms the ring sleeve shaped component of opening, the opening of the clamp is provided for locking fastener, the inner annular surface of the clamp is equipped with the embedding card convex portion matched with the embedding card recess.
[0009] In the above technical scheme, preferably, the butt joint end surface of the two shell units forms annular recess embedding the clamp.
[0010] In the above technical scheme, preferably, rib ring is arranged between the two shell units, the rib ring is annular connecting piece arranged on the inner side of the clamp, and the two sides of the rib ring are connected to the two shell units respectively.
[0011] In the above technical scheme, preferably, the outer ring part of the rib ring is equipped with annular convex rib body, and the annular convex rib body is located between the end portions of the two shell units.
[0012] In the above technical scheme, preferably, the embedding card recess is annular groove formed on the outer annular surface of the shell unit.
[0013] In the above technical scheme, preferably, the side annular surface of the annular groove close to the end portion of the shell unit is inclined surface, and the inclined surface makes the annular groove form flared shape.
[0014] In the above technical scheme, preferably, the embedding card convex portion of the clamp is annular convex rib formed on the inner annular surface of the clamp.
[0015] In the above technical scheme, preferably, at least one arc-shaped recess is arranged on the annular convex rib.
[0016] In the above technical scheme, preferably, the opening of the clamp is connected through square nut.
[0017] The novel mechanical locking type underwater glider pressure hull realizes sealing connection through the mechanical locking of the circular ring clamp and shell unit, replaces the traditional metal tension rod and nylon tension strip, and brings multiple significant advantages and effects:
[0018] Firstly, the assembly space requirement is greatly reduced. Traditional metal tension rods require running through the entire cabin, occupying a large axial space, while the new mechanical locking structure achieves connection through the circular hoop, reducing the dependence on space. This makes the glider design more compact, allowing more efficient arrangement of other important components in limited space, optimizing the layout between cabin sections and improving space utilization.
[0019] Secondly, the process of combining and disassembling the cabin is more convenient. The traditional tension rod and nylon tension strip connection method not only requires a long time of operation, but also requires precise alignment, increasing the operation difficulty. The new mechanical locking method relies on the circular hoop to quickly achieve connection and disassembly, simplifying the operation process and greatly improving the efficiency of assembly and maintenance. Workers can combine and disassemble the cabin more quickly, saving time and labor costs, which is particularly important in situations requiring frequent maintenance.
[0020] In addition, the connection stability is significantly improved. The areas that metal tension rods cannot cover rely on nylon tension strips to maintain connection, but nylon material is prone to aging, affecting the stability of the connection. The circular hoop provides more uniform and lasting tension through mechanical locking, ensuring stable connection between cabin sections and reducing the risk of loosening or fatigue damage. This method can ensure the sealing and structural integrity of the pressure hull in long-term high-pressure environments, improving the safety of the overall system.
[0021] The environmental friendliness and production safety are greatly improved. Traditional nylon tension strips require the application of green oil to prevent plankton, but green oil contains certain toxicity, which poses potential harm to the environment. The new mechanical locking method completely eliminates the use of nylon tension strips, eliminating the dependence on toxic coatings and meeting green production and environmental protection requirements, reducing the negative impact on the environment during production. This is crucial for the green production of gliders, reducing harmful substance emissions and meeting modern environmental protection and sustainable development concepts.
[0022] Finally, the long-term durability and reliability are enhanced. The mechanical locking structure avoids the aging of nylon materials and the uneven stress of metal tension rods, and the uniform tension provided by the hoop effectively prevents the connection from loosening or damaging due to external forces or underwater pressure. This allows the pressure hull of the glider to maintain stability and reliability over a long period of use, reducing maintenance frequency and related costs, and improving the overall service life of underwater gliders.
[0023] In summary, the mechanical locking of the circular hoop and the hull unit of the pressure hull not only greatly improves the convenience of assembly and disassembly, reduces space requirements, but also improves the stability, durability and environmental friendliness of the connection, optimizes the production process, and better meets the needs of modern green production and sustainable development. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 The utility model discloses a structure schematic diagram;
[0025] Figure 2 The utility model discloses a longitudinal section schematic diagram of being attached as Figure 1
[0026] Figure 3 The utility model discloses a structure schematic diagram of the clamp in the utility model;
[0027] Figure 4 The utility model discloses a structure schematic diagram of the partial I in the utility model; Figure 2 The utility model discloses a structure enlarged schematic diagram of the partial I in the utility model. DETAILED DESCRIPTION
[0028] In order to make the utility model's purpose, technical scheme and advantage more clearly, following combining with example, the utility model is further explained in detail. It should be understood that the specific example described here is only used to explain the utility model, and is not used to limit the utility model.
[0029] In order to solve the traditional underwater glider pressure hull and exist installation and disassembly difficult, space occupation big, connection stability is poor and environmental protection problem because connecting mode passes through metal tension rod and nylon tension strip, the utility model provides a novel mechanical locking type underwater glider pressure hull. In order to further illustrate the structure of the utility model, the following detailed description is combined with the drawings:
[0030] Please refer to Figures 1-4 A novel mechanical locking type underwater glider pressure hull, including the butt joint end of two shell units on the outside ring surface of the two shell units is provided with the embedded card recess.
[0031] In the embodiment, specifically, the novel mechanical locking type underwater glider pressure hull includes front end cover 1, front shell 2, rib ring 3, clamp 4, rear shell 6, rear end cover 7. The front shell and the rear shell are two shell units connected by the clamp. The front end cover, the front shell, the rear shell and the rear end cover are made of aluminum alloy material, the front end cover is radially piston sealed with the front shell and is connected by screw fastening, and the rear end cover is radially piston sealed with the rear shell and is connected by screw fastening.
[0032] The clamp forms the open ring sleeve member, and the fastener for locking is arranged at the opening of the clamp. The opening of the clamp is connected by the square nut 5. The clamp is made of high-strength and high-toughness aluminum alloy material, and the front shell, the rib ring and the rear shell are locked by deformation of the clamp. The square nut is matched with the square groove at the opening of the clamp, and the screw is screwed to force the clamp to deform.
[0033] The inner annular surface of the clamp is provided with a clamping protrusion that is adapted to the clamping recess. The abutting end surfaces of the two shell units form a ring-shaped recess for clamping the clamp. The precise fit of the clamping protrusion and the clamping recess effectively increases the contact area between the clamp and the shell units, making the connection more secure, thereby improving the sealing performance. The locking action of the clamp enables the two shell units to form a high-strength sealed joint, which is crucial for the operation of underwater vehicles in deep sea or high pressure environments, effectively preventing water infiltration and improving the pressure resistance of the pressure hull. The mutual adaptability of the clamping protrusion and recess allows quick abutment and secure fixation during connection and disassembly. This structure reduces the need for tools and complex operations, facilitating the maintenance and repair of underwater vehicles, especially in deep water operations or frequent disassembly situations, significantly improving operational efficiency.
[0034] The clamping recess is a ring-shaped groove formed on the outer annular surface of the shell unit. The side annular surface near the end of the shell unit is beveled, forming an expanded shape for the ring-shaped groove. The clamping protrusion of the clamp is a ring-shaped rib formed on the inner annular surface of the clamp. By setting the bevel, the ring-shaped groove forms an expanded shape, which can effectively optimize the stress distribution of the clamp. When external forces act on the clamp, the design of the bevel can disperse the pressure, avoiding local stress concentration and reducing the risk of damage to the shell or clamp, enhancing the structural stability of the entire connection system. The design of the beveled expanded shape can gradually press the end surfaces of the two shell units through friction when the clamp is locked, thereby forming a strong axial locking force. As the clamp gradually tightens, the friction between the inner and outer annular surfaces of the clamp increases, and this force will push the two shell units axially to abut, thereby ensuring the tight combination between the shell units and preventing loosening or leakage. In addition, the design of the bevel can help the clamp fine-tune during locking, making it more accurately adapt to shell units of different sizes or shapes. Through the gradually increasing locking force, the clamp can achieve higher precision positioning, making the abutment between the shell units more accurate, ensuring better mechanical connection and higher stability.
[0035] A rib ring is provided between the two housing units, which is an annular connecting piece arranged inside the clamp. The two sides of the rib ring are connected to the two housing units respectively. The outer ring part of the rib ring is provided with an annular convex rib body, which is located between the end parts of the two housing units. The rib ring is made of aluminum alloy material and is sealed with the front and rear housing radial pistons. The rib ring is located inside the clamp and connected to the two housing units, which can effectively enhance the structural strength of the entire connecting system. The annular convex rib body of the rib ring provides additional support and reduces the deformation between the two housing units, especially when subjected to external force or underwater pressure. The design of the rib ring helps to disperse and transfer the load, enhancing the stability of the overall structure. The rib ring helps the clamp maintain stable positioning during installation and locking. The annular convex rib body of the rib ring forms four grooves, in which four O-rings are placed for sealing. The connection between the rib ring and the two housing units can prevent the clamp from shifting or misaligning during locking, thereby improving the positioning accuracy of the clamp and ensuring more accurate docking between the two housing units, avoiding sealing failure or incomplete locking due to installation errors. The design of the annular convex rib body can effectively disperse the stress between the clamp and the housing unit. When the two housing units are connected, the convex rib body of the rib ring provides additional support, reducing the local stress concentration phenomenon and avoiding fatigue and damage to the clamp or housing during high pressure or long-term use. This uniform stress distribution improves the durability of the entire structure.
[0036] At least one arc-shaped recess is arranged on the ring of the annular convex rib. The design of the arc-shaped recess can help disperse stress and improve the fatigue resistance of the material. By reducing the stress concentration at the contact part of the clamp and the housing unit, the fatigue damage caused by repeated loading of the material is delayed. This design is particularly suitable for long-term use or high-pressure environments, and can improve the reliability and service life of the structure. The design of the arc-shaped recess can make the stress of the annular convex rib more uniform. By setting the arc-shaped recess, the stress concentration phenomenon can be effectively reduced, especially when the clamp is locked, the arc-shaped recess helps to disperse the pressure and avoid deformation or damage of the convex rib or connecting part due to excessive local stress. This helps to improve the stability and durability of the entire connecting system. The arc-shaped recess allows the clamp to have a certain elasticity when locked, which can act as a certain buffer to reduce the impact of vibration on the connecting piece. In a dynamic environment, the arc-shaped recess helps to absorb part of the vibration energy, reducing the risk of loosening caused by vibration and improving the stability and vibration resistance of the connection.
[0037] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A novel mechanically locked underwater glider pressure hull, characterized in that: The application relates to a two-shell unit connected axially and a clamp for connecting the two-shell unit, wherein the outer side surface of the butt joint end of the two-shell unit is provided with an embedded clamp recess, the clamp is formed as an open ring sleeve member, the opening of the clamp is provided with a fastener for locking, and the inner ring surface of the clamp is provided with an embedded clamp convex part matched with the embedded clamp recess.
2. A novel mechanical locking underwater glider pressure hull according to claim 1, characterized in that: The butt joint end surface of the two-shell unit is formed as a ring recess for embedding the clamp.
3. A novel mechanical locking underwater glider pressure hull according to claim 2, characterized in that: A rib ring is arranged between the two shell units, the rib ring is a ring-shaped connecting member arranged on the inner side of the clamp, and the two sides of the rib ring are respectively connected to the two shell units.
4. The novel mechanical locking underwater glider pressure hull according to claim 3, characterized in that: The outer ring part of the rib ring is provided with a ring-shaped convex rib body between the end parts of the two shell units.
5. The novel mechanical locking underwater glider pressure hull according to claim 4, characterized in that: The embedded clamp recess is a ring-shaped groove formed on the outer side surface of the shell unit.
6. The novel mechanical locking underwater glider pressure hull according to claim 5, characterized in that: The side surface of the ring-shaped groove close to the end part of the shell unit is a bevel surface, and the bevel surface makes the ring-shaped groove form a flared shape.
7. The novel mechanical locking underwater glider pressure hull according to claim 6, characterized in that: The embedded clamp convex part of the clamp is a ring-shaped convex rib formed on the inner side surface of the clamp.
8. The novel mechanical locking underwater glider pressure hull according to claim 7, characterized in that: The ring-shaped convex rib is provided with at least one arc-shaped recess in the ring direction.
9. The novel mechanical locking underwater glider pressure hull according to claim 8, characterized in that: The opening of the clamp is connected through a square nut.