CN110816808A - Non-closed waterproof opening cover assembly - Google Patents
Non-closed waterproof opening cover assembly Download PDFInfo
- Publication number
- CN110816808A CN110816808A CN201911228938.8A CN201911228938A CN110816808A CN 110816808 A CN110816808 A CN 110816808A CN 201911228938 A CN201911228938 A CN 201911228938A CN 110816808 A CN110816808 A CN 110816808A
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- square edge
- edge
- square
- cylinder
- outer panel
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Classifications
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- 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
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- 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
- B64C1/1446—Inspection hatches
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- 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
- B64C1/1453—Drain masts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention belongs to the field of aviation structure design, and provides a non-closed waterproof opening cover assembly, which comprises: box 5, upper and lower angle bars 6, 7, outer panel 8. The waterproof panel has the advantages that the waterproof function is realized, the adhesive tape on the panel is eliminated, the time cost and the economic cost for replacing the adhesive tape are saved, the number of quick-release fasteners is reduced, and the maintenance is convenient.
Description
Technical Field
The invention belongs to the field of aviation structure design and relates to an unsealed waterproof opening cover assembly.
Background
An unmanned helicopter needs to be provided with an opening on the side skin of the helicopter body to maintain airborne equipment or a power supply system. In order to prevent rainwater from entering the body, a maintenance cover cap needs to be designed at the opening. The flap assembly is generally formed by bonding a panel 1 and an adhesive tape 2, is connected with a machine body structure 4 by a quick-release fastener 3, and forms a closed structure through compression of the adhesive tape to achieve a waterproof effect, as shown in fig. 1 and 2, fig. 1 is a front view of the existing closed waterproof flap assembly design, and fig. 2 is a sectional view of the existing closed waterproof flap assembly design.
The above method has the following disadvantages: a) the adhesive tape can be aged after being used for a period of time, sealing is affected, and replacement is needed; b) in order to compress the adhesive tape, the number of quick-release fasteners needs to be increased, so that the maintainability is poor; c) the panel design must satisfy certain rigidity requirement, adopts honeycomb sandwich structure or thin wall reinforced structure usually, prevents that the panel warp to lead to the sealing failure.
Disclosure of Invention
The purpose of the invention is as follows: the utility model provides a design of non-closed waterproof flap subassembly satisfies waterproof function, cancels the adhesive tape on the panel, removes the time cost and the economic cost of changing the adhesive tape from, reduces quick-release fastener quantity, and it is convenient to maintain.
The technical scheme of the invention is as follows: an unsealed waterproof flap assembly comprising: a box-shaped part 5, an upper angle bar 6, a lower angle bar 7, an outer panel 8,
the box-shaped part 5 comprises a cylinder body 50, a first square edge 51 and a second square edge 52, the cylinder body 50 is of a square cylinder structure, and the first square edge 51 and the second square edge 52 are square sheets with square holes; the inner edge of the first square edge 51 is connected to one end of the cylinder 50, and the outer edge is far away from the cylinder 50; one side of the second square edge 52 is connected to the other end of the cylinder 50, and the other side is positioned in the cylinder 50; the section of the box-shaped part 5 formed by connecting the cylinder 50, the first square edge 51 and the second square edge 52 is in two opposite Z shapes;
the first square edge 51 is connected with the fuselage structure 4, and the cylinder 50, the first square edge 51 and the second square edge 52 are positioned inside the fuselage; the upper angle material 6 and the lower angle material 7 are positioned at two opposite sides in the cylinder 50 and connected with the cylinder 50;
the outer panel 8 is located the one side that the barrel 50 was kept away from to last angle timber 6 and lower angle timber 7, the upside and the downside of outer panel 8 correspondingly respectively with go up angle timber 6 and lower angle timber 7 detachable connection, outer panel 8 is used for sealing fuselage structure 4's opening.
Furthermore, the upper angle bar 6 and the lower angle bar 7 are both L-shaped plates, and one side of each of the upper angle bar 6 and the lower angle bar 7 is connected with two opposite sides inside the cylinder 50; the other sides of the upper angle bar 6 and the lower angle bar 7 are detachably connected with an outer panel 8.
Furthermore, the contact surfaces of the upper angle member 6 and the lower angle member 7 with the outer panel 8 are respectively bonded with a buffer pad for preventing the upper angle member 6 and the lower angle member 7 from colliding with the outer panel 8 to cause damage.
Further, the upper angle bar 6 and the lower angle bar 7 are connected with the outer panel 8 through the quick-release fastener 3; the distance L3 between the edge of the outer panel 8 and the edge of the opening of the fuselage structure 4 is not more than 1 mm.
Further, the angle a between the lower side of the cylinder 50 and the second square edge 52 is greater than 90 ° for forming a drainage surface in the inner wall of the cylinder 50.
Further, four corners of the cylinder 50 are rounded.
Further, the distance between two ends of the lower angle member 7 connected to the lower side of the cylinder 50 and the other two sides of the lower side of the vertical cylinder 50 is d, where d is L2+ R; wherein the radius of the fillet is R, and L2 is more than 6mm, and is used for forming drainage areas at two ends of the lower angle bar 7.
Further, the length of the upper angle bar 6 is greater than the transverse width of the opening of the second square edge 52; the horizontal distances from the two ends of the upper angle bar 6 to the opening of the second square edge 52 are both L1, and L1 is greater than zero; the second square edge 52 is used for forming a water blocking surface.
Further, the edge of the second square edge 52 away from the inner wall of the barrel 50 is provided with a flange for preventing water from entering the inside of the fuselage.
The invention has the beneficial effects that: the utility model provides a design of non-closed waterproof flap subassembly, under the condition that satisfies waterproof function, has following advantage: a, adhesive tapes on the panel are eliminated, so that the time cost and the economic cost for replacing the adhesive tapes are saved; b, the number of quick-release fasteners is reduced, and the maintenance is convenient; and c, the rigidity of the panel can be reduced, the design difficulty is reduced, and the plate can meet the design requirement.
Drawings
FIG. 1 is a front view of a prior art closed water resistant flap assembly design;
FIG. 2 is a cross-sectional view of a prior art closed water resistant flap assembly design A-A;
FIG. 3 is a front view of the design of the non-occluded water resistant flap assembly of the present embodiment;
FIG. 4 is a cross-sectional view of the non-occluded water resistant flap assembly design B-B of this embodiment.
Detailed Description
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, and it is obvious that the described embodiments are some, not all, embodiments of the present 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.
Fig. 3 is a front view of the design of the non-sealing waterproof flap assembly of the present embodiment, and fig. 4 is a cross-sectional view of the design of the non-sealing waterproof flap assembly of the present embodiment, which is shown in fig. 3 and 4, and the non-sealing waterproof flap assembly of the present embodiment includes: box 5, upper and lower angle bars 6, 7, outer panel 8.
The box-shaped part 5 comprises a cylinder body 50, a first square edge 51 and a second square edge 52, wherein the cylinder body 50 is of a square cylinder structure, and the first square edge 51 and the second square edge 52 are square sheets with square holes; the inner edge of the first square edge 51 is connected to one end of the cylinder 50, and the outer edge is far away from the cylinder 50; one side of the second square edge 52 is connected to the other end of the cylinder 50, and the other side is located in the cylinder 50; the cross section of the box-shaped member 5 formed by connecting the cylinder 50, the first square edge 51 and the second square edge 52 is in a Z shape opposite to each other.
The first square edge 51 is connected with the fuselage structure 4, and the barrel 50, the first square edge 51 and the second square edge 52 are positioned inside the fuselage; the upper angle member 6 and the lower angle member 7 are located at opposite sides of the inside of the cylinder 50 and connected to the cylinder 50.
The outer panel 8 is located on one side of the upper angle bar 6 and the lower angle bar 7 far away from the cylinder 50, the upper side and the lower side of the outer panel 8 are correspondingly detachably connected with the upper angle bar 6 and the lower angle bar 7 respectively, and the outer panel 8 is used for closing the opening of the body structure 4.
Further, the length of the upper angle bar 6 is larger than the transverse width of the opening of the second square edge 52; the horizontal distances from the two ends of the upper angle bar 6 to the opening of the second square edge 52 are both L1, and L1 is greater than zero; the second square edge 52 is used to form a water retaining surface.
In the non-closed waterproof opening cover assembly of the embodiment, the outer panel 8 is arranged to prevent water; if water enters, the second square edge 52 can form a water retaining surface to further prevent water. In addition, in the embodiment, the rubber strip on the panel is eliminated, so that the time cost and the economic cost for replacing the rubber strip are saved; the number of quick-release fasteners is reduced, and the maintenance is convenient.
Furthermore, the upper angle material 6 and the lower angle material 7 are both L-shaped plates, and one side of each of the upper angle material 6 and the lower angle material 7 is connected with two opposite sides in the cylinder 50; the other sides of the upper angle bar 6 and the lower angle bar 7 are detachably connected with the outer panel 8, so that the outer panel can be conveniently detached. Specifically, the upper and lower angle members 6 and 7 are connected with the outer panel 8 through the quick-release fastener 3; the distance L3 between the edge of the outer panel 8 and the edge of the opening of the fuselage structure 4 does not exceed 1mm, facilitating the assembly of the outer panel 8.
The contact surfaces of the upper angle bar 6 and the lower angle bar 7 and the panel 8 are respectively bonded with a buffer pad for preventing the upper angle bar 6 and the lower angle bar 7 from colliding with the panel 8 to cause damage. The cushion of the present embodiment includes a cushion pad 9 and a cushion pad 10, as shown in fig. 4.
Further, the angle a between the lower side of the cylinder 50 and the second square edge 52 is larger than 90 ° for forming a drainage surface in the inner wall of the cylinder 50.
The four corners of the cylinder 50 are rounded. The distance between two ends of the lower angle member 7 connected to the lower side of the cylinder 50 and the other two sides of the lower side of the vertical cylinder 50 is d, and d is L2+ R; wherein the radius of the fillet is R, L2 is more than 6mm, and the fillet is used for forming drainage areas at two ends of the lower angle bar 7.
Further, the edge of the second square edge 52 away from the inner wall of the barrel 50 is provided with a flange for preventing water from entering the inside of the fuselage.
This embodiment, through setting up drainage face, drainage zone and manger plate face, can avoid inside water entering fuselage structure.
Claims (9)
1. An unsealed waterproof flap assembly, the unsealed waterproof flap assembly comprising: a box-shaped part (5), an upper angle bar (6), a lower angle bar (7) and an outer panel (8),
the box-shaped part (5) comprises a cylinder body (50), a first square edge (51) and a second square edge (52), the cylinder body (50) is of a square cylinder structure, and the first square edge (51) and the second square edge (52) are square sheets with square holes; the inner edge of the first square edge (51) is connected to one end of the cylinder (50), and the outer edge of the first square edge is far away from the cylinder (50); one side of the second square edge (52) is connected to the other end of the cylinder body (50), and the other side of the second square edge is positioned in the cylinder body (50); the section of the box-shaped part (5) formed by connecting the cylinder (50), the first square edge (51) and the second square edge (52) is in two opposite Z shapes;
the first square edge (51) is connected with the fuselage structure (4), and the barrel (50), the first square edge (51) and the second square edge (52) are positioned in the fuselage; the upper angle material (6) and the lower angle material (7) are positioned at two opposite sides in the cylinder body (50) and are connected with the cylinder body (50);
outer panel (8) are located one side that barrel (50) were kept away from to angle material (6) and lower angle material (7) on, the upside and the downside of outer panel (8) are connected with angle material (6) and lower angle material (7) are dismantled respectively correspondingly, outer panel (8) are used for sealing the opening of fuselage structure (4).
2. The unsealed waterproof flap assembly according to claim 1, wherein the upper and lower angles (6, 7) are L-shaped panels, one side of each of the upper and lower angles (6, 7) being connected to opposite sides of the interior of the can (50); the other sides of the upper angle bar (6) and the lower angle bar (7) are detachably connected with the outer panel (8).
3. The non-sealing waterproof flap assembly according to claim 2, wherein the contact surfaces of the upper angle member (6) and the lower angle member (7) with the outer panel (8) are respectively adhered with a buffer pad for preventing the upper angle member (6) and the lower angle member (7) from colliding with the outer panel (8) to cause damage.
4. The non-sealing, water-resistant flap assembly of claim 3, wherein the upper and lower angle bars (6, 7) are connected to the outer panel (8) by quick release fasteners (3); the distance L3 between the edge of the outer panel (8) and the edge of the opening of the fuselage structure (4) is not more than 1 mm.
5. The non-sealing, water resistant flap assembly according to claim 1, wherein the angle a of the underside of the barrel (50) to the second square edge (52) is greater than 90 ° for forming a drainage surface in the inner wall of the barrel (50).
6. The non-sealing, water resistant flap assembly of claim 1 wherein the four corners of the barrel (50) are rounded.
7. The non-sealing, water-tight flap assembly according to claim 6, wherein both ends of the lower angle bar (7) connected to the lower side of the cylinder (50) are spaced from the other two sides of the lower side of the vertical cylinder (50) by a distance d, L2+ R; wherein the radius of the rounding is R, and L2 is larger than 6mm, so that drainage areas are formed at two ends of the lower angle bar (7).
8. The non-sealing, water resistant flap assembly of claim 1 wherein the length of the upper angle bar (6) is greater than the transverse width of the opening of the second square edge (52); the horizontal distances from the two ends of the upper angle bar (6) to the opening of the second square edge (52) are both L1, and L1 is greater than zero; the second square edge (52) is used for forming a water retaining surface.
9. The non-sealing, water resistant flap assembly of claim 1 wherein the edge of the second square edge (52) remote from the inner wall of the barrel (50) is provided with a cuff for preventing water from entering the interior of the fuselage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911228938.8A CN110816808A (en) | 2019-12-04 | 2019-12-04 | Non-closed waterproof opening cover assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911228938.8A CN110816808A (en) | 2019-12-04 | 2019-12-04 | Non-closed waterproof opening cover assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110816808A true CN110816808A (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911228938.8A Pending CN110816808A (en) | 2019-12-04 | 2019-12-04 | Non-closed waterproof opening cover assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110816808A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB486983A (en) * | 1937-02-25 | 1938-06-14 | Laurance Rupert Woods | Improvements in draining and ventilating eyelets |
| US8443575B1 (en) * | 2009-10-27 | 2013-05-21 | The Boeing Company | Composite access door |
| CN203806132U (en) * | 2014-05-06 | 2014-09-03 | 江西洪都航空工业集团有限责任公司 | Rain-proof sealing cover assembly |
| US20140345199A1 (en) * | 2011-09-20 | 2014-11-27 | Mitsubishi Aircraft Corporation | Gasket seal, door of aircraft, seal structure for opening portion of aircraft, and aircraft |
| CN204297049U (en) * | 2014-11-14 | 2015-04-29 | 中国航空工业集团公司西安飞机设计研究所 | A kind of lid rhone |
| CN204297048U (en) * | 2014-11-14 | 2015-04-29 | 中国航空工业集团公司西安飞机设计研究所 | A kind of lid discharge structure |
| CN105857569A (en) * | 2016-04-01 | 2016-08-17 | 中航飞机股份有限公司西安飞机分公司 | Covering cap structure for aircraft maintenance |
| CN108238262A (en) * | 2017-12-08 | 2018-07-03 | 西安飞机工业（集团）有限责任公司 | A kind of sealing structure of nacelle of airplane lid |
| CN209209014U (en) * | 2018-11-13 | 2019-08-06 | 中国直升机设计研究所 | A kind of rainproof ventilation lid of helicopter |
-
2019
- 2019-12-04 CN CN201911228938.8A patent/CN110816808A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB486983A (en) * | 1937-02-25 | 1938-06-14 | Laurance Rupert Woods | Improvements in draining and ventilating eyelets |
| US8443575B1 (en) * | 2009-10-27 | 2013-05-21 | The Boeing Company | Composite access door |
| US20140345199A1 (en) * | 2011-09-20 | 2014-11-27 | Mitsubishi Aircraft Corporation | Gasket seal, door of aircraft, seal structure for opening portion of aircraft, and aircraft |
| CN203806132U (en) * | 2014-05-06 | 2014-09-03 | 江西洪都航空工业集团有限责任公司 | Rain-proof sealing cover assembly |
| CN204297049U (en) * | 2014-11-14 | 2015-04-29 | 中国航空工业集团公司西安飞机设计研究所 | A kind of lid rhone |
| CN204297048U (en) * | 2014-11-14 | 2015-04-29 | 中国航空工业集团公司西安飞机设计研究所 | A kind of lid discharge structure |
| CN105857569A (en) * | 2016-04-01 | 2016-08-17 | 中航飞机股份有限公司西安飞机分公司 | Covering cap structure for aircraft maintenance |
| CN108238262A (en) * | 2017-12-08 | 2018-07-03 | 西安飞机工业（集团）有限责任公司 | A kind of sealing structure of nacelle of airplane lid |
| CN209209014U (en) * | 2018-11-13 | 2019-08-06 | 中国直升机设计研究所 | A kind of rainproof ventilation lid of helicopter |
Non-Patent Citations (1)
| Title |
|---|
| 陈里根; 邓承佯，张改华，徐环宇，余志明: "教练机口盖防水设计", 《教练机》 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200221 |
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| RJ01 | Rejection of invention patent application after publication |