CN203996920U - Collapsible composite material airstair - Google Patents
Collapsible composite material airstair Download PDFInfo
- Publication number
- CN203996920U CN203996920U CN201420397237.3U CN201420397237U CN203996920U CN 203996920 U CN203996920 U CN 203996920U CN 201420397237 U CN201420397237 U CN 201420397237U CN 203996920 U CN203996920 U CN 203996920U
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- CN
- China
- Prior art keywords
- supporting leg
- composite material
- guard rail
- hinged
- rod
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Abstract
The utility model relates to a kind of collapsible composite material airstair, belongs to ladder field.Be provided with two composite material supporting legs that be arranged in parallel, between two supporting legs, be fixed with composite material pipe link, each supporting leg is three-section type structure, the middle node lower end of supporting leg and the lower joint of supporting leg are hinged through supporting leg lower bearing pin, the middle node upper end of supporting leg and the upper joint of supporting leg are hinged through supporting leg upper pin, the two ends up and down of supporting leg and the two ends up and down of composite material guard rail rod are fixed together, each guard rail rod is three-section type structure, the middle node lower end of guard rail rod and the lower joint of guard rail rod block bar lower bearing pin hinge through protecting, the middle node upper end of guard rail rod and the upper joint of guard rail rod block bar upper pin hinge through protecting, between two guard rail rods that be arranged in parallel, be equidistantly hinged with composite material pedal through bearing pin, supporting leg top rear side is fixed with metal hanger, prop up midleg rear side and be hinged with composite material connecting rod, common and composite material backup plate one end hinge after the connecting rod other end is connected with nut one end, the nut other end screws in screw rod one end, the other end of screw rod is hinged with supporting leg, backup plate is a long strip type " V " font plate.
Description
Technical field
The utility model relates to ladder field, at length says it is a kind of collapsible composite material airstair.
Background technology
As everyone knows, Airstairs of airplane be for aviator or service personnel go on or off the plane must equipment, be that aircraft floor ensures one of important equipment.The airstair that domestic service aircraft uses is all metallic material (as alloy steel) manufacture, has the use problems such as structure is heavy, distortion is large, cannot fold.If ladder adopts titanium alloy material manufacture, not only processing difficulties, and also expensive, cost effectiveness is undesirable.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of collapsible composite material airstair, and working stand adopts dismountable foldable structure, and connecting portion adopts Quick bolt, bolt, convenient folding, and after folding, size is little, is convenient to transition and deposits.Meeting under the prerequisite of function, performance, realizing that working stand configuration is stable, lightweight, obviously improving ease of use.
The utility model solves the technical scheme that its technical matters adopts: a kind of collapsible composite material airstair, be provided with two composite material supporting legs that be arranged in parallel, between two supporting legs, be fixed with composite material pipe link, it is characterized in that, each supporting leg is three-section type structure, the middle node lower end of supporting leg and the lower joint of supporting leg are hinged through supporting leg lower bearing pin, the middle node upper end of supporting leg and the upper joint of supporting leg are hinged through supporting leg upper pin, the two ends up and down of supporting leg and the two ends up and down of composite material guard rail rod are fixed together, each guard rail rod is three-section type structure, the middle node lower end of guard rail rod and the lower joint of guard rail rod block bar lower bearing pin hinge through protecting, the middle node upper end of guard rail rod and the upper joint of guard rail rod block bar upper pin hinge through protecting, between two guard rail rods that be arranged in parallel, be equidistantly hinged with composite material pedal through bearing pin, supporting leg top rear side is fixed with metal hanger, prop up midleg rear side and be hinged with composite material connecting rod, common and composite material backup plate one end hinge after the connecting rod other end is connected with nut one end, the nut other end screws in screw rod one end, the other end of screw rod is hinged with supporting leg, backup plate is a long strip type " V " font plate.
The utility model also can be achieved by the following measures: " U " font composite material handrail upwarping is installed between supporting leg and guard rail rod upper end.The installed in front of supporting leg lower end has roller.
The beneficial effects of the utility model are, working stand adopts dismountable foldable structure, and connecting portion adopts Quick bolt, bolt, convenient folding, folding after size little, be convenient to transition and deposit.Meeting under the prerequisite of function, performance, realizing that working stand configuration is stable, lightweight, obviously improving ease of use.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
1. rollers in Fig. 1,2. guard rail rod lower bearing pin, 3. pedal, 4. guard rail rod upper pin, 5. connecting rod, 6. guard rail rod, 7. handrail, 8. hook, 9. backup plate, 10. nut, 11. supporting leg upper pins, 12. screw rods, 13. supporting leg lower bearing pins, 14. supporting legs.
Detailed description of the invention
In Fig. 1, the utility model is provided with two supporting legs that be arranged in parallel 14, between two supporting legs 14, be fixed with pipe link, each supporting leg 14 is three-section type structure, the middle node lower end of supporting leg 14 and the lower joint of supporting leg 14 are hinged through supporting leg lower bearing pin 13, the middle node upper end of supporting leg 14 and the upper joint of supporting leg 14 are hinged through supporting leg upper pin 11, the two ends up and down of supporting leg 14 and the two ends up and down of guard rail rod 6 are fixed together, each guard rail rod 6 is three-section type structure, the middle node lower end of guard rail rod 6 and the lower joint of guard rail rod 6 block bar lower bearing pin 2 and are hinged through protecting, the middle node upper end of guard rail rod 6 and the upper joint of guard rail rod 6 block bar upper pin 4 and are hinged through protecting, between two guard rail rods 6 that be arranged in parallel, be equidistantly hinged with pedal 3 through bearing pin, supporting leg 14 top rear sides are fixed with hook 8, supporting leg 14 middle part rear sides are hinged with connecting rod 5, common and backup plate 9 one end hinges after connecting rod 5 other ends are connected with nut 10 one end, nut 10 other ends screw in screw rod 12 one end, the other end of screw rod 12 is hinged with supporting leg 14, backup plate 9 is a long strip type " V " font plate, " U " font handrail 7 upwarping is installed between supporting leg 14 and guard rail rod 6 upper ends, the installed in front of supporting leg 14 lower ends has roller 1.The utility model all uses composite material to make except bearing pin, roller 1, nut 10 and hook, and this composite material can be carbon fiber, glass fibre etc., the sandwich pipe of foam that connecting rod 5, guard rail rod 6, handrail 7 and supporting leg 14 adopt with reinforced rib.
When the utility model uses, hook 8 is fixed on the attaching parts of aircraft, by literal to " V " of backup plate 9 side that is stuck in wing, rotate pedal 3 around bearing pin, one end of pedal 3 is ridden on the pipe link between two supporting legs 14, and pin is stepped on two pedals 3 between supporting leg 14, gets final product aboard.In the time that needs fold ladder, bearing pin between screw rod 12 and supporting leg 14 is pulled out, screw rod 12 and connecting rod 5 are folded on supporting leg 14, again the supporting leg lower bearing pin 13 on two supporting legs 14, supporting leg upper pin 11 are pulled out, or the guard rail rod lower bearing pin 2 on two guard rail rods 6 and guard rail rod upper pin 4 are pulled out, three-section type guard rail rod 6 and supporting leg 14 can be folded in, while moving, roller 1 have been landed, drag ladder with hand and move.
Claims (3)
1. a collapsible composite material airstair, be provided with two composite material supporting legs that be arranged in parallel, between two supporting legs, be fixed with composite material pipe link, it is characterized in that, each supporting leg is three-section type structure, the middle node lower end of supporting leg and the lower joint of supporting leg are hinged through supporting leg lower bearing pin, the middle node upper end of supporting leg and the upper joint of supporting leg are hinged through supporting leg upper pin, the two ends up and down of supporting leg and the two ends up and down of composite material guard rail rod are fixed together, each guard rail rod is three-section type structure, the middle node lower end of guard rail rod and the lower joint of guard rail rod block bar lower bearing pin hinge through protecting, the middle node upper end of guard rail rod and the upper joint of guard rail rod block bar upper pin hinge through protecting, between two guard rail rods that be arranged in parallel, be equidistantly hinged with composite material pedal through bearing pin, supporting leg top rear side is fixed with metal hanger, prop up midleg rear side and be hinged with composite material connecting rod, common and composite material backup plate one end hinge after the connecting rod other end is connected with nut one end, the nut other end screws in screw rod one end, the other end of screw rod is hinged with supporting leg, backup plate is a long strip type " V " font plate.
2. collapsible composite material airstair according to claim 1, is characterized in that, between described supporting leg and guard rail rod upper end, " U " font composite material handrail upwarping is installed.
3. collapsible composite material airstair according to claim 1, is characterized in that the installed in front of described supporting leg lower end has roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420397237.3U CN203996920U (en) | 2014-07-18 | 2014-07-18 | Collapsible composite material airstair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420397237.3U CN203996920U (en) | 2014-07-18 | 2014-07-18 | Collapsible composite material airstair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203996920U true CN203996920U (en) | 2014-12-10 |
Family
ID=52036960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420397237.3U Active CN203996920U (en) | 2014-07-18 | 2014-07-18 | Collapsible composite material airstair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203996920U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104890877A (en) * | 2015-06-19 | 2015-09-09 | 中国航空工业集团公司西安飞机设计研究所 | Ladder hanging rack structure |
-
2014
- 2014-07-18 CN CN201420397237.3U patent/CN203996920U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104890877A (en) * | 2015-06-19 | 2015-09-09 | 中国航空工业集团公司西安飞机设计研究所 | Ladder hanging rack structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WEIHAI GUANGWEI COMPOSITE MATERIALS CO., LTD. Free format text: FORMER NAME: WEIHAI GUANGWEI COMPOSITES CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 264209 No. 130, Tianjin Road, hi tech Industrial Development Zone, Shandong, Weihai Patentee after: WEIHAI GUANGWEI COMPOSITES CO., LTD. Address before: 264209 No. 130, Tianjin Road, hi tech Industrial Development Zone, Shandong, Weihai Patentee before: Weihai Guangwei Composites Co., Ltd. |