CN113513951A - Connection unlocking and heat-proof system of full-enclosed split head cover - Google Patents
Connection unlocking and heat-proof system of full-enclosed split head cover Download PDFInfo
- Publication number
- CN113513951A CN113513951A CN202110479969.1A CN202110479969A CN113513951A CN 113513951 A CN113513951 A CN 113513951A CN 202110479969 A CN202110479969 A CN 202110479969A CN 113513951 A CN113513951 A CN 113513951A
- Authority
- CN
- China
- Prior art keywords
- half shell
- lower half
- initiating explosive
- heat
- radial mounting
- 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.)
- Pending
Links
- 239000002360 explosive Substances 0.000 claims abstract description 46
- 230000000977 initiatory effect Effects 0.000 claims abstract description 44
- 239000002184 metal Substances 0.000 claims description 35
- 238000009413 insulation Methods 0.000 claims description 13
- 238000005422 blasting Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
The invention discloses a connecting, unlocking and heat-proof system of a full-enclosed split head cover, wherein the full-enclosed split head cover comprises an upper half shell and a lower half shell, the upper half shell and the lower half shell are buckled and connected, the upper half shell and the lower half shell are rotatably connected at the root parts, loads are arranged inside the combined upper half shell and the combined lower half shell, and the connecting, unlocking and heat-proof system comprises a connecting piece and initiating explosive devices; the connecting piece is arranged in the upper half shell; the initiating explosive device is arranged in the lower half shell and connected with the connecting piece and used for connecting and fastening the upper half shell and the lower half shell; according to the invention, at the head of the rocket head cover, the connection and unlocking functions of the upper half shell and the lower half shell can be realized by using only one initiating explosive device, and the functional components can be effectively protected from heat; the system has compact structure, is easy to assemble, test, disassemble and maintain, and obtains better balance among product function, economy and reliability.
Description
Technical Field
The invention relates to the technical field of aerospace craft, in particular to a connecting unlocking and heat-proof system of a full-enclosed split type hood.
Background
The full-enclosed split head cover is a special head fairing adopted on a rocket or a missile, and the full-enclosed mode means that a load is completely enveloped in the head cover to obtain protection; by "split" is meant that the hood can be unlocked and separated when it is desired to release the load during rocket flight. The initiating explosive device is generally used as a functional part for connecting and unlocking the head cover, the economical efficiency and the reliability of the whole system are considered, the using quantity of the initiating explosive device is reduced as much as possible, however, the reliability of the connecting and unlocking functions of the head cover is adversely affected, and meanwhile, higher requirements are provided for the installation structure design, the assembly, the test, the maintenance and the environmental adaptability of the initiating explosive device. The requirements of the above aspects are difficult to be met simultaneously by adopting the conventional design thought.
There is a need to develop a fully-enclosed split head cover attachment unlocking and heat shielding system to solve the above problems.
Disclosure of Invention
The invention aims to solve the problems and designs a connecting unlocking and heat-proof system of a full-enclosed split-type hood.
The invention realizes the purpose through the following technical scheme:
the connection unblock and the heat protection system of full package to open hood, the full package is to open hood include first half casing, lower half casing, and first half casing, lower half casing lock are connected, and first half casing, lower half casing are at root rotatable coupling, and the load is installed in first half casing after the combination, lower half casing inside, connects the unblock and includes with the heat protection system:
a connecting member; the connecting piece is arranged in the upper half shell;
the initiating explosive device is used for blasting and disconnecting the connecting piece; the initiating explosive device is arranged in the lower half shell and connected with the connecting piece and used for connecting and fastening the upper half shell and the lower half shell.
Specifically, radial mounting holes are formed in the upper half shell and the lower half shell, connecting holes are formed in the connecting positions of the two radial mounting holes, and the diameters of the connecting holes are smaller than those of the radial mounting holes; the connecting piece is a threaded sleeve, the threaded sleeve is arranged in the radial mounting hole of the upper half shell, the initiating explosive device is arranged in the radial mounting hole of the lower half shell, a screw rod of the initiating explosive device penetrates through the connecting hole, and the screw rod of the initiating explosive device is in threaded connection with the threaded sleeve.
Furthermore, cover plates are arranged on the upper half shell and the lower half shell, and the cover plates are covered at the outer ends of the radial mounting holes.
Specifically, axial mounting holes are formed in the upper half shell and the lower half shell and used for communicating the radial mounting holes with rear cavities in the upper half shell and the lower half shell and used for threading of initiating explosive device cables.
The connecting, unlocking and heat-preventing system further comprises two metal gaskets, two heat-insulating gaskets, a cylindrical bushing, a cable bushing I and a cable bushing II, wherein the two metal gaskets and the two heat-insulating gaskets are sleeved on the screw rod, the first metal gasket and the first heat-insulating gasket are arranged in a radial mounting hole of the upper half shell, the first end face of the first metal gasket is connected with the wall of the radial mounting hole, the second end face of the first metal gasket is connected with the first end face of the first heat-insulating gasket, and the second end face of the first heat-insulating gasket is connected with the end face of the threaded sleeve; the second metal gasket and the second heat insulation gasket are arranged in the radial mounting hole of the lower half shell, the first end face of the second metal gasket is connected with the wall of the radial mounting hole, the second end face of the second metal gasket is connected with the first end face of the second heat insulation gasket, and the second end face of the second heat insulation gasket is connected with the end face of the initiating explosive device; the cylindrical bushing is sleeved on the side wall of the initiating explosive device, and the side wall of the cylindrical bushing is connected with the side wall of the radial mounting hole of the lower half shell; cable bush I installs in the axial mounting hole of half shell down, and cable bush II installs in the radial mounting hole of half shell down, and the line is crossed in initiating explosive device cable follow cable bush I and cable bush II.
Preferably, the full-enclosed hood further comprises a tip disposed at the head of the upper and lower half shells and fixedly connected to the head of the lower half shell.
Further, the tip is formed in a hemispherical shape.
Preferably, the metal washer is made of metal, and the heat insulating washer, the cylindrical bush, the cable bush i and the cable bush ii are made of materials with low thermal conductivity and low thermal expansion coefficient.
The invention has the beneficial effects that:
at the head of the rocket head cover, the connection and unlocking functions of the upper half shell and the lower half shell can be realized by using only one initiating explosive device, and the functional components can be effectively protected from heat; the system has compact structure, is easy to assemble, test, disassemble and maintain, and obtains better balance among product function, economy and reliability.
Drawings
FIG. 1 is a schematic overall view of a linked unlocking and heat protection system for a fully-enclosed, split hood of the present invention;
FIG. 2 is a schematic view of the interior structure of the hood shell.
Wherein, 1-end; 2-bolt; 3-upper half shell; 4-initiating explosive device; 5-a screw; 6-cover plate; 7-a thread sleeve; 8-countersunk head screw; 9-insulating gasket; 10-a metal gasket; 11-a cylindrical liner; 12-load; 13-initiating explosive device cable; 14-cable bushing i; 15-cable bushing ii; 16-a lower half-shell; 17-radial mounting holes; 18-axial mounting hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inside", "outside", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that the products of the present invention are conventionally placed in use, or the orientations or positional relationships that are conventionally understood by those skilled in the art, and are used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is also to be noted that, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following detailed description of embodiments of the invention refers to the accompanying drawings.
As shown in fig. 1, the connection unblock and the heat protection system of full-enclosed split head cover, full-enclosed split head cover include first half-shell 3, lower half-shell 16, first half-shell 3, lower half-shell 16 lock connection, first half-shell 3, lower half-shell 16 are at root rotatable coupling, load 12 is installed inside first half-shell 3, lower half-shell 16 after the combination, connect the unblock and include with the heat protection system:
a connecting member; the connecting piece is arranged in the upper half shell 3;
an initiating explosive device 4 for blasting and breaking the connecting piece; the initiating explosive device 4 is arranged in the lower half shell 16, and the initiating explosive device 4 is connected with the connecting piece and used for connecting and fastening the upper half shell 3 and the lower half shell 16. When the initiating explosive device 4 is fired, the upper half shell 3 and the lower half shell 16 can be unlocked by breaking the screw 5.
As shown in fig. 1 and 2, radial mounting holes 17 are formed in the upper half shell 3 and the lower half shell 16, and a connecting hole is formed at the joint of the two radial mounting holes 17, and the diameter of the connecting hole is smaller than that of the radial mounting hole 17; the connecting piece is a threaded sleeve 7, the threaded sleeve 7 is arranged in a radial mounting hole 17 of the upper half shell 3, the initiating explosive device 4 is arranged in a radial mounting hole 17 of the lower half shell 16, the screw 5 of the initiating explosive device 4 penetrates through the connecting hole, and the screw 5 of the initiating explosive device 4 is in threaded connection with the threaded sleeve 7.
As shown in fig. 1, the cover plates 6 are provided on both the upper half shell 3 and the lower half shell 16, the cover plates 6 are provided at the outer ends of the radial mounting holes 17, and the cover plates 6 are fixed by countersunk screws 8.
As shown in fig. 1 and 2, the upper half shell 3 and the lower half shell 16 are both provided with axial mounting holes 18, and the axial mounting holes 18 are used for communicating the radial mounting holes 17 with rear cavities in the upper half shell 3 and the lower half shell 16 and for threading the initiating explosive device cable 13. Meanwhile, the pneumatic heat is conducted in a balanced manner, and the situation that the temperature of the head of the shell rises too high in the flying process is avoided.
As shown in fig. 1 and 2, the connection, unlocking and heat protection system further includes two metal gaskets 10, two heat insulation gaskets 9, a cylindrical bushing 11, a cable bushing i 14 and a cable bushing ii 15, wherein the two metal gaskets 10 and the two heat insulation gaskets 9 are all sleeved on the screw 5, a first metal gasket 10 and a first heat insulation gasket 9 are disposed in a radial mounting hole 17 of the upper half shell 3, a first end face of the first metal gasket 10 is connected with a wall of the radial mounting hole 17, a second end face of the first metal gasket 10 is connected with a first end face of the first heat insulation gasket 9, and a second end face of the first heat insulation gasket 9 is connected with an end face of the threaded sleeve 7; a second metal gasket 10 and a second heat insulating gasket 9 are arranged in the radial mounting hole 17 of the lower half shell 16, a first end face of the second metal gasket 10 is connected with the wall of the radial mounting hole 17, a second end face of the second metal gasket 10 is connected with a first end face of the second heat insulating gasket 9, and a second end face of the second heat insulating gasket 9 is connected with an end face of the initiating explosive device 4; the cylindrical bush 11 is sleeved on the side wall of the initiating explosive device 4, and the side wall of the cylindrical bush 11 is connected with the side wall of a radial mounting hole 17 of the lower half shell 16; the cable bush I14 is installed in an axial installation hole 18 of the lower half shell 16, the cable bush II 15 is installed in a radial installation hole 17 of the lower half shell 16, and the initiating explosive device cable 13 is led through the cable bush I14 and the cable bush II 15.
As shown in fig. 1, the full-enclosed half-covered hood further comprises a tip 1, wherein the tip 1 is arranged at the head parts of the upper half shell 3 and the lower half shell 16, and the tip 1 is fixedly connected with the head part of the lower half shell 16.
As shown in fig. 1, the tip 1 is formed in a hemispherical shape.
The metal washer 10 is made of metal and the insulating washer 9, the cylindrical bush 11, the cable bush i 14 and the cable bush ii 15 are made of materials with low thermal conductivity and low thermal expansion coefficient. And requires good processing and forming properties and high strength.
The system comprises an upper half shell 3 and a lower half shell 16 which are similar in structure, are mutually connected through a hinge at the root parts, are mutually buckled during assembly, and are connected and fastened from the radial direction by using a connecting piece and the initiating explosive device 4, so that a complete nose cover in the shape of a rotary body is formed, and a load 12 is enveloped in the complete nose cover. The initiating explosive device 4 in the connecting and unlocking assembly is isolated from the hood assembly through the heat-proof assembly, so that the influence of aerodynamic heat generated during rocket flying on the performance of the initiating explosive device 4 is avoided. After the flight program gives an ignition signal to trigger the initiating explosive device 4, the upper half shell 3 and the lower half shell 16 are unlocked, the degree of freedom of rotation around the hinge is obtained, and normal execution of a series of functions of subsequent head cover split, load release 12 and the like is guaranteed.
The end head 1, the bolt 2, the upper half shell 3, the lower half shell 16, the cover plate 6 and the countersunk head screw 8 are made of metal. The main body parts of the upper half shell 3 and the lower half shell 16 are semi-cylindrical thin shells; the head is a typical pneumatic rectification structure with a parabola-like section, the end head 1 is of an approximately hemispherical structure and is installed on the end face of the head of the shell through a bolt 2, and the pneumatic rectification function can be achieved on the windward side.
In the flying process, the shell is influenced by pneumatic heat to rapidly rise in temperature, and the temperature rise of the head of the shell is particularly obvious. Two metal washers 10, two insulating washers 9, a cylindrical bush 11, a cable bush i 14 and a cable bush ii 15 are mounted in the upper and lower half shells 3, 16 to isolate the connection unlocking assembly from the shell head. The metal gasket 10 is in contact with the shell, and the heat insulation gasket 9 is located between the connecting and unlocking assembly and the metal gasket 10 and needs to bear certain screwing pre-tightening force. The cylindrical liner 11, the cable liner i 14 and the cable liner ii 15 are all mounted near the initiating explosive device 4. The cylindrical bush 11 is used for the tamping of the initiating explosive device 4 in the housing cavity in order to prevent the initiating explosive device 4 from shaking due to impact vibration. The cable bushing I14 and the cable bushing II 15 are used for heat insulation protection of the initiating explosive device cable 13.
The technical solution of the present invention is not limited to the limitations of the above specific embodiments, and all technical modifications made according to the technical solution of the present invention fall within the protection scope of the present invention.
Claims (8)
1. The connection unblock and the heat protection system of full package to open hood, the full package is to open hood include first half casing, lower half casing, and first half casing, lower half casing lock are connected, and first half casing, lower half casing are at root rotatable coupling, and the load is installed in first half casing after the combination, lower half casing inside, its characterized in that connects the unblock and includes with the heat protection system:
a connecting member; the connecting piece is arranged in the upper half shell;
the initiating explosive device is used for blasting and disconnecting the connecting piece; the initiating explosive device is arranged in the lower half shell and connected with the connecting piece and used for connecting and fastening the upper half shell and the lower half shell.
2. The system for connecting, unlocking and protecting against heat of a full-enclosed split head cover according to claim 1, wherein radial mounting holes are provided in both the upper half shell and the lower half shell, and a connecting hole is provided at a connecting position of the two radial mounting holes, and the diameter of the connecting hole is smaller than that of the radial mounting holes; the connecting piece is a threaded sleeve, the threaded sleeve is arranged in the radial mounting hole of the upper half shell, the initiating explosive device is arranged in the radial mounting hole of the lower half shell, a screw rod of the initiating explosive device penetrates through the connecting hole, and the screw rod of the initiating explosive device is in threaded connection with the threaded sleeve.
3. The system of claim 2, wherein a cover plate is provided on each of the upper and lower half shells, and covers the outer ends of the radial mounting holes.
4. The system of claim 2, wherein the upper and lower half shells have axial mounting holes for connecting the radial mounting holes to the rear cavities in the upper and lower half shells and for passing the initiating explosive cables.
5. The system for connecting, unlocking and preventing heat of the totally-enclosed and split head cover according to claim 2, further comprising two metal washers, two heat insulating washers, a cylindrical bushing, a cable bushing i and a cable bushing ii, wherein the two metal washers and the two heat insulating washers are all sleeved on the screw rod, wherein the first metal washer and the first heat insulating washer are arranged in the radial mounting hole of the upper half shell, the first end surface of the first metal washer is connected with the wall of the radial mounting hole, the second end surface of the first metal washer is connected with the first end surface of the first heat insulating washer, and the second end surface of the first heat insulating washer is connected with the end surface of the threaded sleeve; the second metal gasket and the second heat insulation gasket are arranged in the radial mounting hole of the lower half shell, the first end face of the second metal gasket is connected with the wall of the radial mounting hole, the second end face of the second metal gasket is connected with the first end face of the second heat insulation gasket, and the second end face of the second heat insulation gasket is connected with the end face of the initiating explosive device; the cylindrical bushing is sleeved on the side wall of the initiating explosive device, and the side wall of the cylindrical bushing is connected with the side wall of the radial mounting hole of the lower half shell; cable bush I installs in the axial mounting hole of half shell down, and cable bush II installs in the radial mounting hole of half shell down, and the line is crossed in initiating explosive device cable follow cable bush I and cable bush II.
6. The system of claim 1, further comprising a tip disposed on the head of the upper and lower half shells and fixedly connected to the head of the lower half shell.
7. The linked unlocking and heat protection system for a full-enclosed, split-head hood as claimed in claim 6, wherein the tip is formed in a hemispherical shape.
8. The system of claim 5, wherein the metal washer is made of metal and the heat insulating washer, the cylindrical bushing, the cable bushing I and the cable bushing II are made of materials with low thermal conductivity and low thermal expansion coefficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110479969.1A CN113513951A (en) | 2021-04-30 | 2021-04-30 | Connection unlocking and heat-proof system of full-enclosed split head cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110479969.1A CN113513951A (en) | 2021-04-30 | 2021-04-30 | Connection unlocking and heat-proof system of full-enclosed split head cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113513951A true CN113513951A (en) | 2021-10-19 |
Family
ID=78063846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110479969.1A Pending CN113513951A (en) | 2021-04-30 | 2021-04-30 | Connection unlocking and heat-proof system of full-enclosed split head cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113513951A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0710094A (en) * | 1993-06-23 | 1995-01-13 | Natl Space Dev Agency Japan<Nasda> | Heat protection device of space shuttle |
| JPH09263300A (en) * | 1996-03-28 | 1997-10-07 | Fuji Heavy Ind Ltd | High temperature structural body tightening structure for space shuttle |
| JPH1120798A (en) * | 1997-06-30 | 1999-01-26 | Nissan Motor Co Ltd | Air frame nose fairing separation device |
| US20070074636A1 (en) * | 2005-06-27 | 2007-04-05 | Diehl Bgt Defence Gmbh & Co., Kg | Jettisonable nosecone and missile with a jettisonable nosecone |
| US10377510B1 (en) * | 2018-11-14 | 2019-08-13 | Vector Launch Inc. | Enhanced fairing mechanisms for launch systems |
| US20200109929A1 (en) * | 2017-04-28 | 2020-04-09 | Mbda France | Actuation device for ejecting at least one removable part of a missile, particularly a nose |
-
2021
- 2021-04-30 CN CN202110479969.1A patent/CN113513951A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0710094A (en) * | 1993-06-23 | 1995-01-13 | Natl Space Dev Agency Japan<Nasda> | Heat protection device of space shuttle |
| JPH09263300A (en) * | 1996-03-28 | 1997-10-07 | Fuji Heavy Ind Ltd | High temperature structural body tightening structure for space shuttle |
| JPH1120798A (en) * | 1997-06-30 | 1999-01-26 | Nissan Motor Co Ltd | Air frame nose fairing separation device |
| US20070074636A1 (en) * | 2005-06-27 | 2007-04-05 | Diehl Bgt Defence Gmbh & Co., Kg | Jettisonable nosecone and missile with a jettisonable nosecone |
| US20200109929A1 (en) * | 2017-04-28 | 2020-04-09 | Mbda France | Actuation device for ejecting at least one removable part of a missile, particularly a nose |
| US10377510B1 (en) * | 2018-11-14 | 2019-08-13 | Vector Launch Inc. | Enhanced fairing mechanisms for launch systems |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2489591C2 (en) | Device for locking of rotation of axis supporting suspension element of gas-turbine engine | |
| CN111071489A (en) | Carrier rocket interstage mixing separation structure | |
| CN219106411U (en) | Battery box and battery pack with explosion-proof function | |
| FR2988978A1 (en) | FADEC BOX SUPPORT IN COMPOSITE MATERIAL | |
| US11738878B2 (en) | Suspension assembly for a turbine engine | |
| CN113513951A (en) | Connection unlocking and heat-proof system of full-enclosed split head cover | |
| US6227096B1 (en) | Universal warhead adapter, and missile and method incorporating same | |
| CN201656634U (en) | Flameproof motor with high-standard protection level | |
| CN108945424A (en) | A kind of rotor blade root configuration | |
| CN109244997B (en) | Embedded cable cabin penetrating structure in composite material shell | |
| EP2973869A1 (en) | Grounding sleeve | |
| JPS61122499A (en) | Supporter for rudder plate of missile | |
| CN108609190B (en) | Rotary type invisible multifunctional cover cap | |
| US20220154687A1 (en) | Rotor hub for a wind power installation, and corresponding rotor arrangement and wind power installation | |
| CN102105676B (en) | For the support flange of the insulation of motor | |
| CN201961529U (en) | Connecting device capable of separating aircraft plug-in article rapidly and automatically | |
| CN115163630A (en) | Connecting fastener for aeronautical composite materials | |
| CN219029749U (en) | Integrated unmanned aerial vehicle carries and kills and explodes warhead structure | |
| CN213544598U (en) | 2-stroke model airplane engine speed sensor | |
| CN221081060U (en) | Motor locking protection device for aviation | |
| CN220324398U (en) | Fuse, battery system and vehicle | |
| CN216850493U (en) | Vibration impact resistant and environment resistant industrial socket | |
| CN116654297A (en) | Interstage separation device of aircraft | |
| CN111071430A (en) | Switching structure and rudder of composite material rudder of high-speed aircraft | |
| CN214648991U (en) | Unmanned plane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211019 |
|
| RJ01 | Rejection of invention patent application after publication |