CN203111494U - Detachable seal cover - Google Patents
Detachable seal cover Download PDFInfo
- Publication number
- CN203111494U CN203111494U CN 201320015658 CN201320015658U CN203111494U CN 203111494 U CN203111494 U CN 203111494U CN 201320015658 CN201320015658 CN 201320015658 CN 201320015658 U CN201320015658 U CN 201320015658U CN 203111494 U CN203111494 U CN 203111494U
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- China
- Prior art keywords
- flap
- cover
- band plate
- plate
- frame
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- 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.)
- Expired - Lifetime
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Abstract
The utility model belongs to the field of mechanics, relates to a detachable seal cover applied to a maintenance cover structure needing (air-tight, oil-tight and water-tight) seal effect. The seal cover comprises a frame [1] and a cover [3] and also comprises a cover band plate [9], wherein the cover [3] is connected with the cover band plate [9] through a bolt [4] and a supporting plate nut [5] arranged on a lower flange of the cover [3], and the frame [1] is clamped between the cover [3] and the cover band plate [9]. The cover is a redundant-seal detachable cover; on one hand, direct connection between the frame [1] and the cover [3] can be avoided, and as a series bolt connected satellite holes do not needs to be formed around the cover [3], the fatigue source is eliminated, and the service life and the reliability are greatly increased. On the other hand, by adopting the redundant sealing way, the sealing property is improved, and the sealing reliability is increased. In addition, as a threaded hole [11] for mounting a detachable handle is formed, the mounting and detachment of the cover [3] are facilitated.
Description
Technical field
The utility model belongs to mechanical field, and a kind of detachable sealing cover needing in the structure of safeguarding flap of sealing (airtight, the close and watertight of oil) can be used for specifically.
Background technology
The aircraft maintenance flap is the aircraft important component part, mainly contain two aspect effects, the one, aircraft always uses in corrosive environment, and housing construction all may be subjected to the erosion of corrosive medium at any time, thereby to integral tank necessary flap must be set so as to ventilate, exhaust.In addition on the one hand, the aircaft configuration complexity arranges the box section of many sealings, has only the design maintenance flap, the passage that construction just can be arranged and safeguard.The detachable sealing cover of existing aircraft generally is to strengthen the version that mouthful frame adds flap, guarantees sealing (seeing Fig. 1, Fig. 2) by rubber profile amount of compression between mouth frame and flap.Its design mainly is designed to main with static strength, a weak point mouthful frame on the one hand directly is connected with flap, continue out some bolted satellite holes around this macropore of flap, make a mouthful frame be in area of high stress, and these satellite holes are exactly tired source, easily cause and strengthen a mouthful frame generation corrosion crack, service life is short, and unfailing performance is low.Flap repeated disassembled and assembled on the other hand, the satellite hole can become greatly, causes the tolerance clearance in attaching parts and satellite hole to become big, can not guarantee sealing property.
Summary of the invention
The technical problems to be solved in the utility model:
The utility model has overcome shortcoming of the prior art, provides the detachable sealing of a kind of brand-new aircraft to safeguard flap version, improving the fatigue life in aircraft maintenance flap zone, and solves the problem of the multiple positiver sealing of detachable flap.
The technical solution of the utility model:
A kind of detachable sealing cover comprises mouthful frame 1, and flap 3 also comprises flap band plate 9, and described flap 3 is connected with flap band plate 9 by the plate nut 5 that arranges on screw 4 and flap 3 lower flanges, and mouth frame 1 is snapped between flap 3 and the flap band plate 9.
Preferably, on the described flap 3 rubber seal 2 is installed, described rubber seal 2 is installed on flap 3 upper flanges, and compressing rubber sealing member 2 makes sealing between flap 3 and mouthful frame 1 behind the screw-driving.
Preferably, flap sealed rubber plate 10 outside flap sealed rubber plate 6 reaches in flap band plate 9 convex shoulder both sides are equipped with.
Preferably, in attaching screw 4 terminations of flap 3 and flap band plate 9 rubber seal 8 is set, the tie bolt hole is sealed.
Preferably, be filled with sealant 7 between flap band plate 9 and mouthful frame 1 and between flap band plate 9 and the flap 3.
Preferably, be provided with two tapped bore 11 at flap 3 horizontal bars and longitudinal rib intersection, be used for the installing/dismounting handle.
Preferably, the version of described mouth frame 1 and flap 3 is slotted hole or elliptical aperture or circular hole.
The beneficial effects of the utility model:
The utility model is that redundance seals detachable flap, compared with prior art, the beneficial effects of the utility model are: on the one hand, avoid rib mouth frame and the direct of flap to be connected, owing to no longer need out a series of bolted satellites hole around the flap, eliminate tired source, improved service life and reliability greatly; On the other hand, adopt the redundance seal form, improved sealing property, guaranteed the reliability of sealing; In addition, owing to be provided with for installing/dismounting handle tapped bore, be convenient to installation and the dismounting of flap.
Description of drawings
Fig. 1 tradition port cover structure scheme drawing;
Fig. 2 tradition flap A-A section-drawing;
Fig. 3 the utility model structural representation;
Fig. 4 the utility model G-G section-drawing.
Wherein, 1-mouth frame, 2-rubber seal, 3-flap, 4-attaching screw, flap sealed rubber plate in the 5-plate nut, 6-, 7-sealant, 8-rubber seal, 9-flap band plate, the outer flap sealed rubber plate of 10-, 11-tapped bore.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment utility model is described in further detail:
As shown in Figure 4, being in area of high stress for fear of mouth frame 1 connects, improve the fatigue property of housing construction, the utility model take measures for: flap 3 directly is not connected with a mouthful frame 1, connect but flap 3 is connected 9 by the plate nut 5 that arranges on attaching screw 4 and the flap lower flange with the flap band plate, mouth frame 1 is snapped between flap 3 and the flap band plate 9.
As shown in Figure 3, in order to guarantee the intensity of flap 3, at the base plate place of flap 3 horizontal lengthways of rod is set, and in the rib intersection tapped bore 11 is set, be used for the installation of flap 3 dismounting handles, be convenient to installation and the dismounting of flap 3.Flap 3 adopts attaching screw 4 to add plate nut 5 forms between flap 3 and flap band plate 9 for detachably, guarantees its dismounting.During use, for anti-environmental corrosion, screw and plate nut all adopt stainless steel material.
As shown in Figure 4, at seal aspect, in order to guarantee the positiver sealing between flap 3 and mouthful frame 1, adopt the redundance seal form, to the structure joint face, connect seam and all carry out encapsulation process:
1-mouth frame, 2-rubber seal, 3-flap, 4-attaching screw, flap sealed rubber plate in the 5-plate nut, 6-, 7-sealant, 8-rubber seal, 9-flap band plate, the outer flap sealed rubber plate of 10-, 11-tapped bore.
1, at flap 3 rubber seal 2 is set, compresses Rubber Parts sealing member 2 as primary seal with the attaching screw 4 on the flap band plate 9.
2, attaching screw 4 ends of flap 3 and flap band plate 9 arrange rubber seal 8, and the tie bolt hole is sealed.
3, outer flap sealed rubber plate 10 and interior flap sealed rubber plate 6 are installed in flap 3 convex shoulder both sides, are that I am out of shape by sealed rubber plate, reach sealing effectiveness on the one hand, can adjust the profile of flap on the other hand.
4, filling with sealant 7 between flap band plate 9 and mouthful frame 1 seals.
As shown in Figure 3, according to the characteristics that the biography of framing member is carried, the stress of structure is concentrated and is all occurred in abrupt change of cross-section position, and stress concentration factor is different and different with the interim form that variable section adopts.Press the probability statistics of framing member fatigue damage, outside the too high fatigue damage that causes of de-stress level, it is the first cause that causes fatigue damage that stress is concentrated.According to structural fatigue/durability Design criterion, select the low version of stress concentration factor, be the effective way that solves the endurance crack problem in aircraft maintenance flap zone.From the relation of stress concentration factor and structural life-time as can be seen, flap 3 and a mouthful frame 1 are designed to manufacturability slotted hole or elliptical aperture or circular hole preferably, have improved the strength at repeated alternation of safeguarding the flap zone.
Claims (7)
1. detachable sealing cover, comprise a mouthful frame [1], flap [3], also comprise flap band plate [9], it is characterized in that, described flap [3] is connected with flap band plate [9] by the plate nut [5] that arranges on screw [4] and flap [3] lower flange, and mouth frame [1] is snapped between flap [3] and the flap band plate [9].
2. a kind of detachable sealing cover according to claim 1, it is characterized in that, rubber seal [2] is installed on the described flap [3], and described rubber seal [2] is installed on flap [3] upper flange, and compressing rubber sealing member [2] makes sealing between flap [3] and mouthful frame [1] behind the screw-driving.
3. a kind of detachable sealing cover according to claim 2 is characterized in that, flap sealed rubber plate [10] outside flap sealed rubber plate [6] reaches in flap band plate [9] convex shoulder both sides are equipped with.
4. a kind of detachable sealing cover according to claim 3 is characterized in that, in attaching screw [4] termination of flap [3] and flap band plate [9] rubber seal [8] is set, and the tie bolt hole is sealed.
5. a kind of detachable sealing cover according to claim 4 is characterized in that, reaches between flap band plate [9] and the flap [3] between flap band plate [9] and mouthful frame [1] and is filled with sealant [7].
6. according to any described a kind of detachable sealing cover of claim 1 to 5, it is characterized in that, be provided with two tapped bore [11] at flap [3] horizontal bar and longitudinal rib intersection, be used for the installing/dismounting handle.
7. a kind of detachable sealing cover according to claim 6 is characterized in that, the version of described mouth frame [1] and flap [3] is slotted hole or elliptical aperture or circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320015658 CN203111494U (en) | 2013-01-11 | 2013-01-11 | Detachable seal cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320015658 CN203111494U (en) | 2013-01-11 | 2013-01-11 | Detachable seal cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203111494U true CN203111494U (en) | 2013-08-07 |
Family
ID=48891864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320015658 Expired - Lifetime CN203111494U (en) | 2013-01-11 | 2013-01-11 | Detachable seal cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203111494U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949134A (en) * | 2017-03-30 | 2017-07-14 | 陕西飞机工业（集团）有限公司 | A kind of 1Gr17Ni2 stainless steels supporting plate fastener and its installation method |
| CN108756517A (en) * | 2018-04-16 | 2018-11-06 | 西安飞机工业（集团）有限责任公司 | A kind of quick-detachable lock of airplane hatch cover |
| CN109606614A (en) * | 2018-11-07 | 2019-04-12 | 中国航空工业集团公司西安飞机设计研究所 | A kind of aircraft wing inspection socket regional structure design method |
-
2013
- 2013-01-11 CN CN 201320015658 patent/CN203111494U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949134A (en) * | 2017-03-30 | 2017-07-14 | 陕西飞机工业（集团）有限公司 | A kind of 1Gr17Ni2 stainless steels supporting plate fastener and its installation method |
| CN108756517A (en) * | 2018-04-16 | 2018-11-06 | 西安飞机工业（集团）有限责任公司 | A kind of quick-detachable lock of airplane hatch cover |
| CN109606614A (en) * | 2018-11-07 | 2019-04-12 | 中国航空工业集团公司西安飞机设计研究所 | A kind of aircraft wing inspection socket regional structure design method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |