CN207049325U - A kind of seal with buss device - Google Patents
A kind of seal with buss device Download PDFInfo
- Publication number
- CN207049325U CN207049325U CN201720948296.9U CN201720948296U CN207049325U CN 207049325 U CN207049325 U CN 207049325U CN 201720948296 U CN201720948296 U CN 201720948296U CN 207049325 U CN207049325 U CN 207049325U
- Authority
- CN
- China
- Prior art keywords
- bushing
- seal
- seal closure
- housing construction
- airtight housing
- 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.)
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Abstract
The utility model provides a kind of seal with buss device, and rotary shaft (1) is ladder hollow shaft, and bushing (2) is by being provided with externally threaded annulus and being formed with the peripheral flange that the axial end of annulus one is connected；Airtight housing construction (3) is formed by flat board and with the rectangular block that flat board one side is connected, and the airtight housing construction (3) is provided with through hole along rectangular block center line；Seal closure (4) is disk-shaped member, and the groove for coordinating bushing (2) installation is provided with the component；Bushing (2) is set in rotary shaft (1) one end, through hole through on airtight housing construction (3), pass part and installation is coordinated by screw thread and seal closure (4) groove, seal closure (4) is bonded to each other with airtight housing construction (3), and smears fluid sealant (5) in seal closure (4) surrounding.The utility model realizes the air-tightness of airtight construction by the threaded connection of seal closure and bushing, and seal closure dismounting and safeguards more convenient, improves the operating efficiency of assembling.
Description
Technical field
The utility model belongs to field of airplane structure, and in particular to a kind of seal with buss device.
Background technology
For aviation aircraft, to ensure the air pressure in driving cabin or main cabin, the part-structure of aircraft is airtight construction, with
Gas pressure leak in cabin is prevented, but due to the requirement of aircraft portions function, it is necessary to rotary shaft is installed on airtight construction, rotary shaft is led to
Cross bushing to connect with body airtight construction, be mostly that gap coordinates to ensure the flexible rotating of rotary shaft, between rotary shaft and bushing,
This results in leakage point of the gap location as air pressure in air-tight cabin.
At present, it is airtight construction cabin to be played before most of large transport airplane or seating plane, and nose-gear connecting shaft is with before
When playing cabin connection, coordinate between axle and bushing for gap, when driving cabin is pressurized, leakage point between axle and bushing be present.
Utility model content
The purpose of this utility model is to provide a kind of seal with buss device, overcomes or alleviated by least one of prior art
Drawbacks described above.
The purpose of this utility model is achieved through the following technical solutions：A kind of seal with buss device, including rotary shaft, lining
Set, airtight housing construction, seal closure, rotary shaft are ladder hollow shaft, and bushing is connected by annulus and with the axial end of annulus one
Peripheral flange form, wherein annulus one end is provided with external screw thread；Airtight housing construction by flat board and with the flat board one side phase
Rectangular block even is formed, the through hole that wherein the airtight housing construction is provided through along rectangular block center line；Seal closure is disk
Shape component, the groove for coordinating bushing installation is provided with the disk-shaped member；Bushing is set in rotary shaft one end, the bushing end
Through hole through on airtight housing construction, bushing passes part and coordinates installation by the groove on screw thread and seal closure, so that close
Sealing cover is bonded to each other with airtight housing construction, and smears fluid sealant in seal closure surrounding.
Preferably, the external screw thread on the bushing is arranged at bushing annulus end, and the external thread section length is worn with bushing
It is isometric to go out the airtight body structure division.
Preferably, the seal closure is by circular flat board and the cylinder boss structure being arranged in the circular flat plate axis
Into being connected in the cylinder boss and open up fluted on the one side of circular flat board, be provided with groove inner wall and coordinate the bushing
The internal thread segment of external thread section, the groove internal thread segment length are more than bushing external thread section length.
Preferably, circumferentially uniform eight strengthening rib strips in the junction of the seal closure circle flat board and cylinder boss.
Preferably, the rectangular block is the square cuboid in section, and the through hole is arranged at the center of square
On line.
A kind of beneficial effect of seal with buss device provided by the utility model is, passes through seal closure and the spiral shell of bushing
Line connects, and realizes the air-tightness of airtight construction, and seal closure dismounting and safeguards more convenient, improves the work effect of assembling
Rate.
Brief description of the drawings
Fig. 1 is the explosive view of the utility model seal with buss device；
Fig. 2 is the scheme of installation of the utility model seal with buss device.
Reference：
1- rotary shafts, 2- bushings, the airtight housing constructions of 3-, 4- seal closures, 5- fluid sealants.
Embodiment
To make the purpose, technical scheme and advantage that the utility model is implemented clearer, below in conjunction with the utility model
Accompanying drawing in embodiment, the technical scheme in the embodiment of the utility model is further described in more detail.In the accompanying drawings, from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Described reality
It is part of the embodiment of the present invention to apply example, rather than whole embodiments.Embodiment below with reference to accompanying drawing description is to show
Example property, it is intended to for explaining the utility model, and it is not intended that to limitation of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made,
Belong to the scope of the utility model protection.
Seal with buss device of the present utility model is described in further details below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of seal with buss device, including rotary shaft 1, bushing 2, airtight housing construction 3, seal closure 4.Its
In, rotary shaft 1 is ladder hollow shaft, and bushing 2 is formed by annulus and with the peripheral flange that the axial end of annulus one is connected, annulus
Outer MJ thread segments are provided with end away from flange one end.Airtight housing construction 3 is connected by flat board and with flat board one side
Rectangular block form, the square cuboid block in rectangular block selection section, airtight housing construction 3 is square along (cuboid block)
The through hole run through is set on the centerline direction of shape face.Seal closure 4 is disk-shaped member, selects by circular flat board and is arranged at this
Cylinder boss in circular flat plate axis is formed, and in the junction of 4 circular flat board of seal closure and cylinder boss, selection is circumferential uniform
Eight strengthening rib strips, and connected in the cylinder boss and open up fluted on the one side of circular flat board, it is provided with groove inner wall
Coordinate the interior MJ thread segments of the external thread section of bushing 2, it is ensured that the groove internal thread segment length is slightly larger than the external thread section length of bushing 2.
As shown in Fig. 2 bushing 2 is set in the one end of rotary shaft 1, the one end with bushing 2 is passed through on airtight housing construction 3
Through hole, it is isometric that external thread section length on bushing 2 with the bushing 2 passes the airtight part of housing construction 3.After bushing 2 is installed in place,
Bushing 2 passes the airtight part of housing construction 3 and installed with the screw-internal thread fit on the groove inner wall of seal closure 4, is made by rotary screwing thread
4 circular slab end-face of seal closure is obtained to be bonded to each other with the airtight platen surface of housing construction 3, it is close in the surrounding of seal closure 4 smearing again afterwards
Sealing 5 seals.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art is in the technical scope that the utility model discloses, the change that can readily occur in
Change or replace, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with described
Scope of the claims is defined.
Claims (5)
1. a kind of seal with buss device, it is characterised in that including rotary shaft (1), bushing (2), airtight housing construction (3), sealing
Cover (4), rotary shaft (1) is ladder hollow shaft, and bushing (2) is by annulus and the peripheral flange structure being connected with the axial end of annulus one
Into wherein annulus one end is provided with external screw thread；Airtight housing construction (3) is by flat board and the rectangular block being connected with flat board one side
Form, the through hole that wherein the airtight housing construction (3) is provided through along rectangular block center line；Seal closure (4) is disc structure
Part, the groove for coordinating bushing (2) installation is provided with the disk-shaped member；Bushing (2) is set in rotary shaft (1) one end, should
Bushing (2) hold through the through hole on airtight housing construction (3), bushing (2) pass part by screw thread with it is recessed on seal closure (4)
Groove coordinates installation, so that seal closure (4) is bonded to each other with airtight housing construction (3), and smears fluid sealant in seal closure (4) surrounding
(5)。
2. seal with buss device according to claim 1, it is characterised in that the external screw thread on the bushing (2) is arranged at
Bushing (2) annulus end, it is isometric that the external thread section length with bushing (2) passes airtight housing construction (3) part.
3. seal with buss device according to claim 2, it is characterised in that the seal closure (4) by circular flat board and
The cylinder boss being arranged in the circular flat plate axis is formed, and is connected in the cylinder boss and is offered on the one side of circular flat board
Groove, the internal thread segment for coordinating bushing (2) external thread section is provided with groove inner wall, the groove internal thread segment length is more than
Bushing (2) external thread section length.
4. seal with buss device according to claim 3, it is characterised in that the circular flat board of the seal closure (4) and cylinder
Circumferentially uniform eight strengthening rib strips in the junction of boss.
5. seal with buss device according to claim 1, it is characterised in that the rectangular block is the square length in section
Cube, the through hole are arranged on the center line of square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720948296.9U CN207049325U (en) | 2017-08-01 | 2017-08-01 | A kind of seal with buss device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720948296.9U CN207049325U (en) | 2017-08-01 | 2017-08-01 | A kind of seal with buss device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207049325U true CN207049325U (en) | 2018-02-27 |
Family
ID=61498823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720948296.9U Active CN207049325U (en) | 2017-08-01 | 2017-08-01 | A kind of seal with buss device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207049325U (en) |
-
2017
- 2017-08-01 CN CN201720948296.9U patent/CN207049325U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |