CN114248903B - Airtight cabin penetrating driving mechanism and use method - Google Patents

Airtight cabin penetrating driving mechanism and use method Download PDF

Info

Publication number
CN114248903B
CN114248903B CN202111493500.XA CN202111493500A CN114248903B CN 114248903 B CN114248903 B CN 114248903B CN 202111493500 A CN202111493500 A CN 202111493500A CN 114248903 B CN114248903 B CN 114248903B
Authority
CN
China
Prior art keywords
airtight
cabin
driving
driving shaft
seat
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
CN202111493500.XA
Other languages
Chinese (zh)
Other versions
CN114248903A (en
Inventor
屈直
马江照
邓晓伟
谭玉生
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.)
AVIC Xian Aircraft Industry Group Co Ltd
Original Assignee
AVIC Xian Aircraft Industry Group Co Ltd
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 AVIC Xian Aircraft Industry Group Co Ltd filed Critical AVIC Xian Aircraft Industry Group Co Ltd
Priority to CN202111493500.XA priority Critical patent/CN114248903B/en
Publication of CN114248903A publication Critical patent/CN114248903A/en
Application granted granted Critical
Publication of CN114248903B publication Critical patent/CN114248903B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C1/06—Frames; Stringers; Longerons ; Fuselage sections
    • B64C1/12—Construction or attachment of skin panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C1/06—Frames; Stringers; Longerons ; Fuselage sections
    • B64C1/08—Geodetic or other open-frame structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C1/14—Windows; Doors; Hatch covers or access panels; Surrounding frame structures; Canopies; Windscreens accessories therefor, e.g. pressure sensors, water deflectors, hinges, seals, handles, latches, windscreen wipers
    • B64C1/1407—Doors; surrounding frames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Sealing Devices (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

A driving mechanism for airtight cabin penetrating is composed of a driving handle and a driving wheel, which are installed to airtight cabin, and a cabin penetrating mechanism between said driving handle and driving wheel.

Description

Airtight cabin penetrating driving mechanism and use method
Technical Field
The invention relates to the aircraft structural design technology, in particular to an airtight cabin penetrating driving mechanism and a using method thereof.
Background
The airtight cabin penetrating driving mechanism is arranged on the isolation parts (such as a skin, a cabin door, a spherical frame and the like) of the airtight area and the non-airtight area of the airplane, is used for controlling the structure/equipment of the non-airtight area through force transmission of the mechanism in the airtight cabin, and meanwhile, the airtight inside the cabin is ensured, in addition, a set of locking device is needed, and after the structure/equipment outside the cabin reaches a preset position, the whole mechanism is locked, so that the mechanism is prevented from moving.
The airtight cabin penetrating driving mechanism used on the current aircraft is mainly formed by extruding and sealing a rubber sealing ring and a structure, lubricating grease is coated on an extruding part to prevent abrasion during structural movement, so that smooth movement of the mechanism is ensured, no clamping stagnation exists.
Disclosure of Invention
According to the requirements of aircraft design and the problems existing in the prior art, the invention aims to provide an aircraft airtight cabin penetrating driving mechanism and a using method thereof, so that the tightness of the structure during cabin penetrating driving operation is improved, and locking and limiting can be performed under any state of mechanism rotation.
The airtight cabin penetrating driving mechanism comprises a driving handle and a driving wheel, wherein the driving handle is arranged in an airtight cabin, the driving wheel is arranged in a non-airtight cabin, and the airtight cabin penetrating driving mechanism is characterized in that a cabin penetrating mechanism is arranged between the driving handle and the driving wheel and comprises a cabin wall, a driving shaft, an airtight seat, an airtight end cover and a rotary disc, the cabin wall is provided with a through hole, the airtight seat is of a cylindrical structure with a flange and matched with the through hole of the cabin wall, the airtight seat is inlaid in the through hole of the cabin wall, the airtight end cover is pressed on the flange of the airtight seat, a fastener is used for fixedly connecting the airtight end cover, the airtight seat flange and the cabin wall, the driving shaft is a stepped shaft, the middle part of the driving shaft is positioned in an inner cavity of the airtight seat, the middle part of the driving shaft and the inner cavity wall of the airtight seat are sealed by oil, the driving shaft can rotate relative to the airtight seat, the front end of the driving shaft stretches out of the center hole of the airtight end cover to be positioned in the airtight cabin, the front end of the driving handle is connected with the driving handle, the rear end of the driving shaft stretches out of the center hole of the airtight seat to be positioned in the non-airtight cabin, and the driving wheel is connected with the rear end of the driving wheel.
The rotary table is also buckled at the front end of the driving shaft, the center of the outer side of the rotary table is provided with a convex hexagonal boss, the hexagonal boss is matched with the inner hexagonal head of the driving handle, the center of the inner side of the rotary table is matched with the front end of the driving shaft, and the front end of the driving shaft is inlaid and fixed at the center of the inner side of the rotary table.
The front end of the driving shaft is provided with a vertical pin hole, the hexagonal boss protruding from the center of the outer side of the turntable is provided with a pin hole coaxial with the front end of the driving shaft, and the front end of the driving shaft is fixedly connected with the hexagonal boss protruding from the center of the outer side of the turntable through the pin hole and a pin.
Coaxial limiting holes are respectively formed in the rotary table and the airtight end cover, and the relative positions of the rotary table and the airtight end cover can be locked through the limiting holes by the limiting pins.
The airtight seat is provided with a closable oil injection nozzle.
The inner hexagonal head of the driving handle, the hexagonal boss of the turntable and the front end of the driving shaft can be connected together through the pin shaft.
The application method of the airtight cabin penetrating driving mechanism is characterized by comprising the following steps: 1) The driving shaft of the cabin penetrating mechanism is assembled in the airtight seat, oil seal is adopted between the driving shaft and the airtight seat, the rear end of the airtight seat penetrates through the through hole of the bulkhead, the flange and the airtight cover of the airtight seat are fixed on the bulkhead on one side of the airtight cabin by using fasteners, the rear end of the driving shaft is positioned in the non-airtight cabin, and the rear end of the driving shaft can be connected with the driving wheel; 2) The rotary table is buckled at the front end of the driving shaft, the inner hexagonal head of the driving handle is connected to the hexagonal boss at the outer side of the rotary table, the inner hexagonal head of the driving handle, the hexagonal boss at the outer side of the rotary table and the front end of the driving shaft at the inner side of the rotary table are connected into an integrated structure by using pins, and a limiting hole on the outer edge of the rotary table is connected with a limiting hole on the airtight end cover by using a limiting pin, so that the rotary table is locked relative to the airtight end cover; 3) When the driving wheel of the non-airtight cabin is required to be driven in the airtight cabin, the limiting pins on the turntable and the airtight end cover are taken off, the constraint of the limiting pins on the turntable is relieved, and the turntable is rotated through the handle to drive the driving shaft and the driving wheel of the non-airtight cabin to rotate; 4) When the position of the driving wheel of the non-airtight cabin is required to be locked, the limiting hole on the outer edge of the turntable is connected with the limiting hole on the airtight end cover by the limiting pin, so that the turntable is locked relative to the airtight end cover.
The beneficial effects of this application lie in: 1) The airtight cabin penetrating driving mechanism realizes better sealing and lubricating effects through the sealing ring and the lubricating grease filling, and reduces the abrasion of mechanism movement to the structure and the sealing ring; 2) The structure has a locking function, and can lock the mechanism in any state to keep the position.
The present application is described in further detail below with reference to the drawings of embodiments.
Drawings
FIG. 1 is a schematic diagram of a drive mechanism for a gas tight nacelle.
FIG. 2 is a schematic cross-sectional view of the airtight through-cabin drive mechanism.
The numbering in the figures illustrates: 1. a drive handle; 2. a turntable; 3. an airtight end cap; 4. a fastener; 5. cylindrical head screw; 6. a driving wheel; 7. an airtight seat; 8. a limiting pin; 9. a pin; 10. low temperature grease; 11. a drive shaft; 12. a pin shaft; 13. a flat key; 14. a rubber ring; 15. a fillet seal area; 16. a bulkhead.
Detailed Description
Referring to the drawings, the airtight cabin penetrating driving mechanism comprises a driving handle 1 and a driving wheel 6, wherein the driving handle 1 is arranged in an airtight cabin, the driving wheel 6 is arranged in a non-airtight cabin, the driving handle 1 and the driving wheel 6 are respectively arranged in the airtight cabin and the non-airtight cabin of an airplane, therefore, a cabin penetrating mechanism is arranged between the driving handle 1 and the driving wheel 6, as shown in fig. 2, the cabin penetrating mechanism comprises a bulkhead 16, a driving shaft 11, an airtight seat 7, an airtight end cover 3 and a turntable 2, the bulkhead 16 isolates the airtight cabin from the non-airtight cabin, a through hole is formed in the bulkhead 16, the airtight seat 7 is of a cylindrical structure matched with the bulkhead through hole, the airtight seat 7 is embedded in the bulkhead through hole, the airtight end cover 3 is pressed against the flange of the airtight seat 7, the airtight end cover 3 and the airtight seat 7 are fixedly connected with the bulkhead 6 by a fastener 4, the driving shaft 11 is a stepped shaft, the middle part of the driving shaft 11 is positioned in the inner cavity of the airtight seat 7, an oil seal is adopted between the middle part of the driving shaft 11 and the inner cavity wall of the airtight seat 7, and the inner cavity wall of the airtight seat 7 is embedded with a rubber ring 14 in the embodiment, and the airtight seat 7 is embedded with the airtight seat 7 at the outer side of the airtight seat 10.
The driving shaft 7 can rotate relative to the airtight seat 7, the central hole of the driving shaft 11 extending out of the airtight end cover 3 is positioned in the airtight cabin, the front end of the driving shaft 11 is connected with the driving handle 1, the central hole of the driving shaft 11 extending out of the bottom of the airtight seat is positioned in the non-airtight cabin, and the rear end of the driving shaft 11 is connected with the driving wheel 6.
In order to facilitate the operation of the driving shaft 11, a locked rotary table 2 is further arranged at the front end of the driving shaft 11, a convex hexagonal boss is arranged at the center of the outer side of the rotary table 2 and is matched with the inner hexagonal head of the driving handle 1, the center of the inner side of the rotary table 2 is matched with the front end of the driving shaft 11, and the front end of the driving shaft is embedded and fixed at the center of the inner side of the rotary table.
Referring to the drawings, the driving handle 1 is connected with the turntable 2 through an inner hexagonal head and an outer hexagonal head, the turntable 2 is fixedly connected with the driving shaft 11 through a pin 9, a vertical pin hole is formed in the front end of the driving shaft 11, a pin hole coaxial with the front end of the driving shaft 11 and the driving handle 1 is formed in a hexagonal boss protruding in the center of the outer side of the turntable 2, and the front end of the driving shaft 11 is fixedly connected with the hexagonal boss protruding in the center of the outer side of the turntable 2 and the inner hexagonal head of the driving handle 1 through the pin hole and the pin 9.
In order to lock the rotary table 2 with the airtight end cover 3, coaxial limiting holes are respectively arranged on the rotary table 2 and the airtight end cover 3, and a limiting pin 8 can lock the relative positions of the rotary table and the airtight end cover through the limiting holes. In the embodiment, nine hole sites are uniformly distributed on the turntable 2, 8 hole sites are uniformly distributed on the airtight end cover 3, so that one hole is aligned when the turntable 2 rotates for 5 degrees, and a limiting pin 8 is inserted to lock the mechanism.
The airtight end cover 3 and the airtight seat 7 are connected with the bulkhead 16 through five sets of fasteners 4. The grooves at the two ends of the driving shaft 11 are respectively provided with 1 rubber ring 14, and a closed space is formed by the rubber rings and the side wall of the airtight seat 7 and is used as a filling area of the low-temperature lubricating grease 10.
In order to fill the interior of the airtight seat 7 with low-temperature grease 10, a closable oil filling nozzle is provided on the airtight seat, which is closed by a cylindrical head screw 5. The low-temperature grease 10 is filled into the airtight seat 7 by unscrewing the cylindrical head screw 5. The driving wheel 6 transmits driving force in the cabin from the driving shaft 11 through a flat key 13, and the driving wheel 6 is fixedly connected with the driving shaft 11 through a pin shaft 12.
When the airtight cabin penetrating driving mechanism is installed, two rubber rings 14 are placed in grooves at two ends of a driving shaft 11, the driving shaft 11 is inserted into an airtight seat 7, a fastener 4 is used for fixedly connecting an airtight end cover 3, the airtight seat 7 and a bulkhead 16, and sealant is coated outside the fastener 4, and the portion is a fixed structure and is also an area for realizing airtight and lubrication functions. The corner-filling sealing area 15 is used for performing corner-filling sealing on the connecting end surfaces of the airtight seat 7, the airtight end cover 3 and the bulkhead 16. After the low-temperature grease 10 is filled into the airtight seat 7, the cylindrical head screw 5 is screwed. The driving wheel 6 is connected to the driving shaft 11 by means of a flat key 13 and a pin 12.
When the airtight cabin is used, the driving shaft 11 of the cabin penetrating mechanism is assembled in the airtight seat 7, oil seal is adopted between the driving shaft 11 and the airtight seat 7, the rear end of the airtight seat 7 penetrates through the through hole of the cabin wall 6, the flange of the airtight seat 7 and the airtight cover 3 are fixed on the cabin wall 6 on one side of the airtight cabin by the fastening piece 4, the rear end of the driving shaft 11 is positioned in the non-airtight cabin, and the rear end of the driving shaft 11 can be connected with the driving wheel 6; the rotary table 2 is buckled at the front end of the driving shaft 11, the inner hexagonal head of the driving handle 1 is connected to the hexagonal boss at the outer side of the rotary table 2, the inner hexagonal head of the driving handle, the hexagonal boss at the outer side of the rotary table and the front end of the driving shaft at the inner side of the rotary table are connected into an integrated structure by using the pin 9, and the limiting hole at the outer edge of the rotary table 2 is connected with the limiting hole at the airtight end cover 3 by using the limiting pin 8, so that the rotary table 2 is locked relative to the airtight end 3; when the driving wheel 6 of the non-airtight cabin is required to be driven in the airtight cabin, the limiting pin 8 covered on the turntable 2 and the airtight end 3 is taken away, the constraint of the limiting pin 8 on the turntable 2 is released, the turntable 2 is rotated through the handle 1, the driving shaft 11 and the driving wheel 6 of the non-airtight cabin are driven to rotate, and the driving wheel 6 is driven by the flat key 13 to rotate along with the driving shaft 11. The driving wheel 6 can be replaced by other power input mechanisms such as a pull rod according to actual situations.
When the position of the non-airtight cabin driving wheel 6 is required to be locked, the limiting holes on the outer edge of the turntable 2 are connected with the limiting holes on the airtight end cover 3 by the limiting pins 8, so that the turntable 2 is locked relative to the airtight end cover 3.

Claims (3)

1. The airtight cabin penetrating driving mechanism includes driving handle and driving wheel, the driving handle is set inside airtight cabin, the driving wheel is set inside airtight cabin, and features that there is one cabin penetrating mechanism between the driving handle and the driving wheel, the cabin penetrating mechanism includes cabin wall, driving shaft, airtight seat, airtight end cover and turntable, the cabin wall has one through hole, the airtight seat is one cylindrical structure with flange and matching with the through hole in the cabin wall, the airtight end cover is crimped onto the flange of the airtight seat, one fastener to fix the airtight end cover, the airtight seat flange and the cabin wall, the driving shaft is one stepped shaft with the middle part inside the airtight seat, the driving shaft has one oil sealing structure between the middle part of the driving shaft and the inner cavity wall of the airtight seat, the driving shaft has one central hole extending from the airtight end cover and inside the airtight cabin, one driving wheel is connected to the driving shaft, the driving shaft has one hexagonal boss, the hexagonal boss is set inside the driving shaft boss, the hexagonal boss is set inside the hexagonal boss, the hexagonal boss is coaxial with the hexagonal boss, the hexagonal boss is fixed to the hexagonal boss, in addition, the limiting pin can lock the relative positions of the turntable and the airtight end cover through the limiting hole.
2. The capsule drive mechanism of claim 1, wherein the airtight seat is provided with a closable filler nozzle.
3. Method of use of a capsule driving mechanism according to claim 1 or 2, characterized in that it comprises the following: 1) The driving shaft of the cabin penetrating mechanism is assembled in the airtight seat, oil seal is adopted between the driving shaft and the airtight seat, the rear end of the airtight seat penetrates through the through hole of the bulkhead, the flange and the airtight cover of the airtight seat are fixed on the bulkhead on one side of the airtight cabin by using fasteners, the rear end of the driving shaft is positioned in the non-airtight cabin, and the rear end of the driving shaft is connected with the driving wheel; 2) The rotary table is buckled at the front end of the driving shaft, the inner hexagonal head of the driving handle is connected to the hexagonal boss at the outer side of the rotary table, the inner hexagonal head of the driving handle, the hexagonal boss at the outer side of the rotary table and the front end of the driving shaft at the inner side of the rotary table are connected into an integrated structure by using pins, and a limiting hole on the outer edge of the rotary table is connected with a limiting hole on the airtight end cover by using a limiting pin, so that the rotary table is locked relative to the airtight end cover; 3) When the driving wheel of the non-airtight cabin is required to be driven in the airtight cabin, the limiting pins on the turntable and the airtight end cover are taken off, the constraint of the limiting pins on the turntable is relieved, and the turntable is rotated through the handle to drive the driving shaft and the driving wheel of the non-airtight cabin to rotate; 4) When the position of the driving wheel of the non-airtight cabin is required to be locked, the limiting hole on the outer edge of the turntable is connected with the limiting hole on the airtight end cover by the limiting pin, so that the turntable is locked relative to the airtight end cover.
CN202111493500.XA 2021-12-08 2021-12-08 Airtight cabin penetrating driving mechanism and use method Active CN114248903B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111493500.XA CN114248903B (en) 2021-12-08 2021-12-08 Airtight cabin penetrating driving mechanism and use method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111493500.XA CN114248903B (en) 2021-12-08 2021-12-08 Airtight cabin penetrating driving mechanism and use method

Publications (2)

Publication Number Publication Date
CN114248903A CN114248903A (en) 2022-03-29
CN114248903B true CN114248903B (en) 2023-07-21

Family

ID=80791841

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111493500.XA Active CN114248903B (en) 2021-12-08 2021-12-08 Airtight cabin penetrating driving mechanism and use method

Country Status (1)

Country Link
CN (1) CN114248903B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0175006A1 (en) * 1984-09-15 1986-03-26 Liquid Gas International Ingenieurgesellschaft mbH Gas-tight seal for a driving shaft passing through a bulkhead
CN205632991U (en) * 2016-05-06 2016-10-12 招商局重工(深圳)有限公司 Flexible crossing cabin spare of expandable that is used for fume pipe
CN110966480A (en) * 2019-12-30 2020-04-07 武昌船舶重工集团有限公司 Sealing device
CN211599527U (en) * 2019-12-04 2020-09-29 江西洪都航空工业集团有限责任公司 Universal aircraft cabin-penetrating sealing device
CN214662570U (en) * 2021-04-27 2021-11-09 招商局邮轮研究院(上海)有限公司 LNG dual fuel pipeline heat-insulating watertight flexible cabin penetrating device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8899594B2 (en) * 2012-12-21 2014-12-02 Mcnish Corporation Adjustable seal apparatus for mounting a mixing apparatus to a vessel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0175006A1 (en) * 1984-09-15 1986-03-26 Liquid Gas International Ingenieurgesellschaft mbH Gas-tight seal for a driving shaft passing through a bulkhead
CN205632991U (en) * 2016-05-06 2016-10-12 招商局重工(深圳)有限公司 Flexible crossing cabin spare of expandable that is used for fume pipe
CN211599527U (en) * 2019-12-04 2020-09-29 江西洪都航空工业集团有限责任公司 Universal aircraft cabin-penetrating sealing device
CN110966480A (en) * 2019-12-30 2020-04-07 武昌船舶重工集团有限公司 Sealing device
CN214662570U (en) * 2021-04-27 2021-11-09 招商局邮轮研究院(上海)有限公司 LNG dual fuel pipeline heat-insulating watertight flexible cabin penetrating device

Also Published As

Publication number Publication date
CN114248903A (en) 2022-03-29

Similar Documents

Publication Publication Date Title
US10538304B2 (en) Aircraft door assembly
CN108058786B (en) Hatch cover capable of quick opening and closing
CN114248903B (en) Airtight cabin penetrating driving mechanism and use method
DE202018103614U1 (en) Underwater engine with hidden charging interface
US20150068125A1 (en) Hingeless Door System for Pressure Vessels
CN105059567A (en) Porthole device for flexible inflatable cabin of spacecraft
CN107420559A (en) Valve
CN108583829B (en) Withstand voltage cabin hatch door subassembly structure of deep sea submersible
US10293519B2 (en) Mandrel bladder end fitting
CN203285981U (en) Cover door locking device of clamping-jaw-type high-pressure container
WO2014118509A1 (en) Cap assembly
US2573207A (en) Liquid discharge mechanism
CN109649664B (en) Coupling release device
CN111042715A (en) Fireproof flame-retardant sealing door for ship
CN209436941U (en) Caliper brake electric pressure cooking saucepan
CN215359652U (en) Sealing rubber cap and mould thereof
CN207092764U (en) Inside door handle and automobile
CN210554126U (en) Sealing mechanism capable of being opened and closed flexibly
CN209353875U (en) A kind of high corrosion-resistant flaring locker
CN108468892A (en) A kind of application method of controllable type oil filling riser steering knuckle
CN112963053A (en) Inner and outer opening handle of hatch cover and opening method
CN107575629A (en) Valve
US2998212A (en) Canopy actuator
US3129010A (en) Shaft seal assembly
CN202295972U (en) Opening and closing device of explosion-proof tank cover

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
GR01 Patent grant
GR01 Patent grant