CN213414151U - Underwater framework used in deepwater environment - Google Patents

Underwater framework used in deepwater environment Download PDF

Info

Publication number
CN213414151U
CN213414151U CN202021524848.1U CN202021524848U CN213414151U CN 213414151 U CN213414151 U CN 213414151U CN 202021524848 U CN202021524848 U CN 202021524848U CN 213414151 U CN213414151 U CN 213414151U
Authority
CN
China
Prior art keywords
spline
screw
cylinder
column
section body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202021524848.1U
Other languages
Chinese (zh)
Inventor
刘斌
王奥博
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Academy of Aerospace Aerodynamics CAAA
Original Assignee
China Academy of Aerospace Aerodynamics CAAA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Academy of Aerospace Aerodynamics CAAA filed Critical China Academy of Aerospace Aerodynamics CAAA
Priority to CN202021524848.1U priority Critical patent/CN213414151U/en
Application granted granted Critical
Publication of CN213414151U publication Critical patent/CN213414151U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Revetment (AREA)

Abstract

The utility model discloses an underwater frame for under deep water environment, include: the device comprises a left ball column body, a first modularized load column section body, a middle section column body, a second modularized load column section body, a right tail section body and a tail propeller fixer; wherein the left ball cylinder is connected to the first modular load cylinder segment by a first spline and a first screw; the first modular load column section body is connected with the middle section column body through a second spline and a second screw; the middle section column body is connected with the second modular load column section body through a third spline and a third screw; the second modular load column segment is connected with the right tail segment through a fourth spline and a fourth screw; and the right tail section body is connected with the tail propeller fixer through a fifth screw. The utility model discloses an impact resistance, reliability, the assembly convenience of navigation ware.

Description

Underwater framework used in deepwater environment
Technical Field
The utility model belongs to the technical field of the ware that stealthily navigates, especially, relate to a frame under water for under deep water environment.
Background
Along with the rapid development of the engineering design technology of the underwater vehicle, the more practical and novel constraint of the convenience of internal space utilization and load layout optimization on the existing frame structure technology is, the more complex the requirement on the strength design of a structural body is along with the development of application scenes, and the continuous development of the structural strength design and hydrodynamic appearance coupling design means is realized; the defects are as follows: the existing underwater vehicle has the obvious defects in the aspect of meeting the rapid carrying capacity of variable loads, particularly has more obvious assembly problems under the outfield environment with severe conditions, and simultaneously has higher and higher requirements on the structural strength and lighter structural weight of the underwater vehicle, and the existing underwater vehicle design technology cannot meet the requirements on impact resistance, reliability and assembly convenience.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem be: the underwater frame overcomes the defects of the prior art, is used in a deep water environment, and realizes the impact resistance, reliability and assembly convenience of an aircraft.
The utility model discloses the purpose is realized through following technical scheme: an underwater frame for use in deep water environments, comprising: the device comprises a left ball column body, a first modularized load column section body, a middle section column body, a second modularized load column section body, a right tail section body and a tail propeller fixer; wherein the left ball cylinder is connected to the first modular load cylinder segment by a first spline and a first screw; the first modular load column section body is connected with the middle section column body through a second spline and a second screw; the middle section column body is connected with the second modular load column section body through a third spline and a third screw; the second modular load column segment is connected with the right tail segment through a fourth spline and a fourth screw; and the right tail section body is connected with the tail propeller fixer through a fifth screw.
In the underwater frame for the deepwater environment, the left ball cylinder comprises a hemisphere and a cylinder; wherein the hemisphere is connected with the cylinder integrally; the diameter of the ball head of the hemisphere is 314 mm; the diameter of the cylinder is 314mm, and the length is 300 mm.
In the underwater frame used in the deepwater environment, the first modular load column section body is a cylinder, the diameter of the cylinder is 314mm, and the length of the cylinder is 370 mm.
In the underwater framework used in the deepwater environment, the middle-section cylinder is a cylinder, the diameter of the cylinder is 314mm, and the length of the cylinder is 370 mm.
In the underwater frame used in the deepwater environment, the second modular load column section body is a cylinder, the diameter of the cylinder is 314mm, and the length of the cylinder is 370 mm.
In the underwater frame used in the deepwater environment, the right tail section body is streamline in shape, the length of the right tail section body is 436.5mm, the diameter of the left end of the right tail section body is 314mm, and the diameter of the right end of the right tail section body is 116 mm.
In the underwater frame used in the deepwater environment, one end of the left ball cylinder is provided with a first spline groove, one end of the first spline is inserted into the first spline groove, and a first screw is screwed into one end of the first spline and one end of the left ball cylinder so that one end of the first spline is connected with one end of the left ball cylinder; and a second spline groove is formed in one end of the first modular load column section body, the other end of the first spline is inserted into the second spline groove, and a first screw is screwed into the other end of the first spline and one end of the first modular load column section body to enable the other end of the first spline to be connected with one end of the first modular load column section body.
In the underwater frame used in the deepwater environment, a third spline groove is formed in the other end of the first modular load column section, one end of the second spline is inserted into the third spline groove, and a second screw is screwed into one end of the second spline and the other end of the first modular load column section so that one end of the second spline is connected with the other end of the first modular load column section; and a fourth spline groove is formed in one end of the middle section column body, the other end of the second spline is inserted into the fourth spline groove, and a second screw is screwed into the other end of the second spline and one end of the middle section column body so that the other end of the second spline is connected with one end of the middle section column body.
In the underwater frame used in the deepwater environment, a fifth spline groove is formed in the other end of the middle section cylinder, one end of the third spline is inserted into the fifth spline groove, and a third screw is screwed into one end of the third spline and the other end of the middle section cylinder so that one end of the third spline is connected with the other end of the middle section cylinder; and a sixth spline groove is formed in one end of the second modular load column section body, the other end of the third spline is inserted into the sixth spline groove, and a third screw is screwed into the other end of the third spline and one end of the second modular load column section body to enable the other end of the third spline to be connected with one end of the second modular load column section body.
In the underwater frame used in the deepwater environment, a seventh spline groove is formed in the other end of the second modular load column section, one end of the fourth spline is inserted into the seventh spline groove, and a fourth screw is screwed into one end of the fourth spline and the other end of the second modular load column section so that one end of the fourth spline is connected with the other end of the second modular load column section; an eighth spline groove is formed in one end of the right tail section body, the other end of the fourth spline is inserted into the eighth spline groove, and a fourth screw is screwed into the other end of the fourth spline and one end of the right tail section body, so that the other end of the fourth spline is connected with one end of the right tail section body.
Compared with the prior art, the utility model following beneficial effect has:
(1) the utility model discloses a first modularization load post segment body pass through second spline and second screw with the characteristic that the middle section cylinder combines, the effect that reaches is: the load of making not unidimensional can connect closely, has avoided long distance to walk the line, possesses higher assembly convenience simultaneously, accords with human engineering, has reduced weight through intensity optimal design, possesses stronger replaceability after dismantling. Due to the consistency of the size, the transportation has certain convenience.
(2) The utility model discloses a middle section cylinder pass through third spline and third screw with the characteristic that second modularization load cylinder body combines, the effect that reaches is: the load of making not unidimensional can connect closely, has avoided long distance to walk the line, possesses higher assembly convenience simultaneously, accords with human engineering, has reduced weight through intensity optimal design, possesses stronger replaceability after dismantling. Due to the consistency of the size, the transportation has certain convenience.
(3) The utility model discloses a second modularization load column segment body through fourth spline and fourth screw with the characteristic that right tail segment body combines, the effect that reaches is: the battery load required by the propeller and the load of the control module can be connected in a short distance, long-distance wiring is avoided, the load installation and disassembly accord with the ergonomic design, and the hydrodynamic force and the structural strength are jointly optimized.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of an underwater frame for use in a deep water environment according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a left stud;
FIG. 3 is a schematic structural view of a first modular load column segment;
FIG. 4 is a schematic structural view of a middle column;
FIG. 5 is a schematic structural diagram of a right tail section body;
fig. 6 is a schematic structural view of a tail thruster holder.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Fig. 1 is a schematic structural diagram of an underwater frame used in a deep water environment according to an embodiment of the present invention. As shown in fig. 1, the underwater frame for use in a deep water environment includes: the device comprises a left ball column body 1, a first modularized load column section body 21, a middle column body 3, a second modularized load column section body 22, a right tail section body 4 and a tail thruster fixer 5; wherein,
the left column body 1 is connected with the first modular load column section body 21 through a first spline 61 and a first screw 71; the first modular load column section 21 is connected to the middle column 3 by the second spline 62 and the second screw 72; the middle column 3 is connected with the second modular load column section 22 through a third spline 63 and a third screw 73; the second modular load column section 22 is connected to the right tail section 4 by a fourth spline 64 and a fourth screw 74; the right aft section 4 is connected to the aft thruster mount 5 by a fifth screw 75.
Specifically, a first spline groove is formed in one end of the left ball cylinder 1, one end of the first spline 61 is inserted into the first spline groove, and a first screw 71 is screwed into one end of the first spline 61 and one end of the left ball cylinder 1, so that one end of the first spline 61 is connected with one end of the left ball cylinder 1.
A second spline groove is formed in one end of the first modular load column section 21, the other end of the first spline 61 is inserted into the second spline groove, and a first screw 71 is screwed into the other end of the first spline 61 and one end of the first modular load column section 21 so that the other end of the first spline 61 is connected with one end of the first modular load column section 21.
A third spline groove is formed in the other end of the first modular load column body 21, one end of the second spline 62 is inserted into the third spline groove, and the second screw 72 is screwed into one end of the second spline 62 and the other end of the first modular load column body 21 so that one end of the second spline 62 is connected with the other end of the first modular load column body 21.
A fourth spline groove is formed in one end of the middle section cylinder 3, the other end of the second spline 62 is inserted into the fourth spline groove, and the second screw 72 is screwed into the other end of the second spline 62 and one end of the middle section cylinder 3, so that the other end of the second spline 62 is connected with one end of the middle section cylinder 3.
The other end of middle section cylinder 3 has seted up the fifth spline groove, and the one end of third spline 63 is inserted and is located the fifth spline inslot, and the one end of third spline 63 and the other end of middle section cylinder 3 are screwed in to third screw 73 makes the one end of third spline 63 and the other end of middle section cylinder 3 be connected.
A sixth spline groove is formed in one end of the second modular load column 22, the other end of the third spline 63 is inserted into the sixth spline groove, and a third screw 73 is screwed into the other end of the third spline 63 and one end of the second modular load column 22 so that the other end of the third spline 63 is connected with one end of the second modular load column 22.
A seventh spline groove is formed at the other end of the second modular load column 22, one end of the fourth spline 64 is inserted into the seventh spline groove, and a fourth screw 74 is screwed into one end of the fourth spline 64 and the other end of the second modular load column 22, so that one end of the fourth spline 64 is connected with the other end of the second modular load column 22.
An eighth spline groove is formed in one end of the right tail section 4, the other end of the fourth spline 64 is inserted into the eighth spline groove, and a fourth screw 74 is screwed into the other end of the fourth spline 64 and one end of the right tail section 4, so that the other end of the fourth spline 64 is connected with one end of the right tail section 4.
As shown in FIG. 2, the left spherical column 1 is in the shape of a combination of a hemisphere and a cylinder, and the geometric dimensions are that the diameter of the spherical head is 314mm, the diameter of the cylinder is 314mm, and the length of the cylinder is 300 mm. According to reasonable design, the frame structure has quick arrangement and installation of current shelf-level products/loads, has good hydrodynamic performance after being additionally provided with skin, and meets the strength requirement.
The thickness of each part of the left spherical cylinder is designed and estimated according to the industry standard, and is calculated through finite element software and optimized according to the result. The use in the deep ocean environment of 1500 meters is met, and the phenomena of fold instability and the like of the structural body are avoided. The adopted material is aluminum alloy 7075, and special treatment is carried out on the metal processing surface. The platform for punching and installing is reserved in the beam structure, the beam structure can be subsequently processed into a threaded hole for installing the load rejection mechanism, the effective load capacity of the underwater vehicle is improved, the load can be conveniently disassembled and assembled, and underwater multitask simultaneous execution can be realized.
As shown in fig. 3, the first modular load column section 21 is in the shape of a cylinder with geometrical dimensions of 314mm diameter and 370mm length, and the structural design matches the convenience of load assembly and is ergonomic. Meanwhile, the mechanism strength check is carried out, and the method is applicable to various scenes under complex sea conditions. And meanwhile, the length size of the cylindrical section is uniformly designed in consideration of the convenience of the transportation of the frame structure. The structure of the second modular load column section 22 is the same as the structure of the first modular load column section 21.
The first modularized load column section is made of stainless steel, and various loads can be carried inside the first modularized load column section to complete corresponding underwater operation tasks. The inner beams/ribs are made of aluminum alloy 7075. The strength and the rigidity of the stainless steel can ensure that important load components are not damaged under the condition that the cabin body is impacted, and strength calculation and simulation are carried out.
As shown in fig. 4, the middle column 3 is in the shape of a cylinder, the geometric dimensions are 314mm in diameter and 370mm in length, and the structural design matches the convenience of load assembly and conforms to the ergonomic design. Meanwhile, the mechanism strength check is carried out, and the method is applicable to various scenes under complex sea conditions. And meanwhile, the length size of the cylindrical section is uniformly designed in consideration of the convenience of the transportation of the frame structure.
The used material of middle section cylinder 3 is aluminum alloy 7075, and corresponding underwater operation task can be accomplished to inside load that can carry on, and the platform of beam structure reservation installation of punching can carry out the space according to actual load demand and put the design, possesses the flexibility. The thickness of the composite material is estimated by an empirical formula, and the composite material is designed by finite element software and design standards, so that the stability of the structure is kept under the action of seawater pressure in a 1500m seawater environment. Meanwhile, the weight of the structural body is optimized, the structural body is the lightest in weight under the condition of meeting the requirement of operation depth, has impact resistance, and is subjected to strength analysis and simulation.
As shown in FIG. 5, the right tail section 4 is streamline in shape, the length of each geometric dimension is 436.5mm, the diameter of the left end is 314mm, the diameter of the right end is 116mm, the structural design is matched with the convenience of load assembly, and the right tail section conforms to the ergonomic design. Meanwhile, the mechanism strength check is carried out, and the mechanism can be suitable for various scenes under complex sea conditions by considering the possibility of various impacts. Meanwhile, convenience and stability of mounting the propeller are considered, and drag reduction design is carried out through optimization of hydrodynamics.
The right tail section body 4 is made of aluminum alloy 7075 and is designed according to strength calculation and installation convenience. The supporting and protecting function is realized for the electronic signal equipment installed in the tail section and other task loads. Intensity analysis and simulation are performed, and weight is optimized.
Fig. 6 is a schematic structural view of a tail thruster holder. As shown in fig. 6, the caudal thruster holder includes a cylinder, a first trapezoid block and a second trapezoid block; wherein, first trapezoidal piece and second trapezoidal piece all set up in the same terminal surface of cylinder, and first trapezoidal piece and second trapezoidal piece are symmetrical about the central line of cylinder.
In order to simplify the amount of labour that outfield load installation was dismantled, guarantee under the deep water environment, the utility model discloses an utilize the form that adopts the single bond to fix a position to axial roll-over direction, match surface within a definite time to adopt spline restriction axial displacement to realize the frame construction under water of multi-functional sealed cabin and connect, each part has optimized under the restraint of intensity condition and has subtract heavy design. The whole sealing equipment is divided into 6 sections and five contact end faces, and each section adopts a contact sealing method. Through intensity analysis and simulation, overall structure has carried out rational design and optimization, guarantees that the installation of modularization load is convenient, the reasonable installation of important equipment, and weight is lightest, and possesses shock resistance.
The utility model discloses a first modularization load post segment body passes through the characteristic that second spline and second screw and middle section cylinder combine, and the effect that reaches is: the load of making not unidimensional can connect closely, has avoided long distance to walk the line, possesses higher assembly convenience simultaneously, accords with human engineering, has reduced weight through intensity optimal design, possesses stronger replaceability after dismantling. Due to the consistency of the size, the transportation has certain convenience.
The utility model discloses a middle section cylinder passes through the characteristic that third spline and third screw and second modularization load cylinder body combine, and the effect that reaches is: the load of making not unidimensional can connect closely, has avoided long distance to walk the line, possesses higher assembly convenience simultaneously, accords with human engineering, has reduced weight through intensity optimal design, possesses stronger replaceability after dismantling. Due to the consistency of the size, the transportation has certain convenience.
The utility model discloses a second modularization load column segment body passes through the fourth spline and the fourth screw and the characteristic that right tail segment body combines, and the effect that reaches is: the battery load required by the propeller and the load of the control module can be connected in a short distance, long-distance wiring is avoided, the load installation and disassembly accord with the ergonomic design, and the hydrodynamic force and the structural strength are jointly optimized.
The utility model discloses a reasonable structural design adopts the modularization, satisfies frame construction and does not have the trouble and uses under the deep ocean environment of 1500 m. This kind of sealed design: the structure is simple, the volume is small, the installation position is compact, the assembly and disassembly are convenient, and the manufacture is easy; the device has the characteristic of easy maintenance, and can be quickly adjusted according to the load requirement; the application depth range is wide and can reach 1500m, and the strength requirement is met.
The utility model discloses a to structural rational design and layout optimization, satisfied the demand that improves underwater vehicle's payload ability and duration.
Compared with the existing frame structure, the underwater vehicle adopts a form of connecting 5 cabin sections, can be combined and used at will, can be increased and decreased according to requirements, and can be used for combining underwater vehicles under various different scenes. Effectively reducing the production cost.
Although the present invention has been disclosed in the preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art can use the above-mentioned method and technical contents to make possible changes and modifications to the technical solution of the present invention without departing from the spirit and scope of the present invention, therefore, any simple modification, equivalent changes and modifications made to the above embodiments by the technical substance of the present invention all belong to the protection scope of the technical solution of the present invention.

Claims (10)

1. An underwater frame for use in deep water environments, comprising: the device comprises a left ball column body (1), a first modularized load column section body (21), a middle section column body (3), a second modularized load column section body (22), a right tail section body (4) and a tail propeller fixer (5); wherein,
the left ball cylinder (1) is connected with the first modular load column section body (21) through a first spline (61) and a first screw (71);
the first modular load column section body (21) is connected with the middle section column body (3) through a second spline (62) and a second screw (72);
the middle section column body (3) is connected with the second modular load column section body (22) through a third spline (63) and a third screw (73);
the second modular load column section body (22) is connected with the right tail section body (4) through a fourth spline (64) and a fourth screw (74);
the right tail section body (4) is connected with the tail propeller fixer (5) through a fifth screw (75).
2. An underwater frame for use in deep water environments according to claim 1 and further comprising: the left spherical column body (1) comprises a hemisphere and a cylinder; wherein,
the hemisphere is connected with the cylinder integrally;
the diameter of the ball head of the hemisphere is 314 mm;
the diameter of the cylinder is 314mm, and the length is 300 mm.
3. An underwater frame for use in deep water environments according to claim 1 and further comprising: the first modular load column section body (21) is a cylinder, the diameter of the cylinder is 314mm, and the length of the cylinder is 370 mm.
4. An underwater frame for use in deep water environments according to claim 1 and further comprising: the middle section cylinder (3) is a cylinder, the diameter of the cylinder is 314mm, and the length of the cylinder is 370 mm.
5. An underwater frame for use in deep water environments according to claim 1 and further comprising: the second modular load column segment (22) is a cylinder with a diameter of 314mm and a length of 370 mm.
6. An underwater frame for use in deep water environments according to claim 1 and further comprising: the shape of the right tail section body (4) is streamline, the length of the right tail section body (4) is 436.5mm, the diameter of the left end of the right tail section body (4) is 314mm, and the diameter of the right end of the right tail section body (4) is 116 mm.
7. An underwater frame for use in deep water environments according to claim 1 and further comprising: a first spline groove is formed in one end of the left ball cylinder body (1), one end of the first spline (61) is inserted into the first spline groove, and a first screw (71) is screwed into one end of the first spline (61) and one end of the left ball cylinder body (1) so that one end of the first spline (61) is connected with one end of the left ball cylinder body (1);
a second spline groove is formed in one end of the first modular load column section body (21), the other end of the first spline (61) is inserted into the second spline groove, and a first screw (71) is screwed into the other end of the first spline (61) and one end of the first modular load column section body (21) to enable the other end of the first spline (61) to be connected with one end of the first modular load column section body (21).
8. An underwater frame for use in deep water environments according to claim 1 and further comprising: a third spline groove is formed in the other end of the first modular load column section body (21), one end of the second spline (62) is inserted into the third spline groove, and a second screw (72) is screwed into one end of the second spline (62) and the other end of the first modular load column section body (21) so that one end of the second spline (62) is connected with the other end of the first modular load column section body (21);
a fourth spline groove is formed in one end of the middle section column body (3), the other end of the second spline (62) is inserted into the fourth spline groove, and a second screw (72) is screwed into the other end of the second spline (62) and one end of the middle section column body (3) to enable the other end of the second spline (62) and one end of the middle section column body (3) to be connected.
9. An underwater frame for use in deep water environments according to claim 1 and further comprising: a fifth spline groove is formed in the other end of the middle section column body (3), one end of the third spline (63) is inserted into the fifth spline groove, and a third screw (73) is screwed into one end of the third spline (63) and the other end of the middle section column body (3) so that one end of the third spline (63) is connected with the other end of the middle section column body (3);
a sixth spline groove is formed in one end of the second modular load column section body (22), the other end of the third spline (63) is inserted into the sixth spline groove, and a third screw (73) is screwed into the other end of the third spline (63) and one end of the second modular load column section body (22) so that the other end of the third spline (63) is connected with one end of the second modular load column section body (22).
10. An underwater frame for use in deep water environments according to claim 1 and further comprising: a seventh spline groove is formed in the other end of the second modular load column section body (22), one end of the fourth spline (64) is inserted into the seventh spline groove, and a fourth screw (74) is screwed into one end of the fourth spline (64) and the other end of the second modular load column section body (22) so that one end of the fourth spline (64) is connected with the other end of the second modular load column section body (22);
an eighth spline groove is formed in one end of the right tail section body (4), the other end of the fourth spline (64) is inserted into the eighth spline groove, and a fourth screw (74) is screwed into the other end of the fourth spline (64) and one end of the right tail section body (4) to enable the other end of the fourth spline (64) to be connected with one end of the right tail section body (4).
CN202021524848.1U 2020-07-28 2020-07-28 Underwater framework used in deepwater environment Active CN213414151U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021524848.1U CN213414151U (en) 2020-07-28 2020-07-28 Underwater framework used in deepwater environment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021524848.1U CN213414151U (en) 2020-07-28 2020-07-28 Underwater framework used in deepwater environment

Publications (1)

Publication Number Publication Date
CN213414151U true CN213414151U (en) 2021-06-11

Family

ID=76255237

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021524848.1U Active CN213414151U (en) 2020-07-28 2020-07-28 Underwater framework used in deepwater environment

Country Status (1)

Country Link
CN (1) CN213414151U (en)

Similar Documents

Publication Publication Date Title
US4448372A (en) Aircraft vertical fin-fuselage structural integration system
Mukhopadhyay et al. Analysis, design, and optimization of noncylindrical fuselage for blended-wing-body vehicle
US20190193829A1 (en) Aircraft and method for producing an aircraft
CN104787284A (en) Child-mother coaxial guide pipe wheel propeller
KR101645215B1 (en) Steel ship or light alloy ship
EP3095689A1 (en) A pressure bulkhead for an aircraft fuselage, and an aircraft comprising such a pressure bulkhead
CN213414151U (en) Underwater framework used in deepwater environment
CN112478182A (en) All-composite light fuel tank shell for aircraft
CN112611269B (en) Carrier rocket
CN106114755A (en) A kind of ship surface inner shell indulges bone arrangement method
CN112356041A (en) Novel eight-degree-of-freedom diving robot
CN205770083U (en) The multifunctional containment cabin of deepwater environment
CN209506029U (en) A kind of isolation mounting suitable for submersible machine
CN104709435A (en) Triple-hulled manual ventilating supercavitation ship type
CN107985560A (en) A kind of aircraft main landing gear reinforced frame structure
CN113200149B (en) Fixed wing unmanned aerial vehicle load structure based on intake duct
CN203889045U (en) Simple piece for communicating exhaust pipe with cabin
CN207311760U (en) A kind of small waterplane area twin hull ship with stabilising fin
CN203666956U (en) Tail shaft grounding and sealing assembly for ship
CN101702028A (en) Single fin arrayed sonar equipment
CN104290918B (en) Miniaturization track towboat satellite configuration and layout design method
CN107539420A (en) A kind of small waterplane area twin hull ship with stabilising fin
CN209488304U (en) A kind of TC4 titanium alloy motor housing
CN113650726A (en) Ship superstructure arrangement structure
CN111731492A (en) Fuel tank of aircraft

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant