CN209905093U - Externally hung telescopic airstairs - Google Patents

Abstract

The utility model provides an externally hung telescopic airstairs, which comprises main frame bodies, wherein two symmetrically arranged vertical rods are fixed between the main frame bodies, and the side wall of the upper part of each vertical rod is provided with a hook structure for hooking and connecting with an airplane hatch; a top-level ladder climbing rod is fixedly arranged in the middle of the main framework body through a hoop; a supporting plate assembly used for supporting the outer wall of the airplane is supported and mounted between the main frame body and the vertical rod; the bottom end of the top-level ladder-climbing rod is connected with a telescopic multi-level telescopic airstair assembly. In addition, the hanging telescopic type airstairs can be hung on the edge of an airplane cabin in the using process, and the multi-stage telescopic structure is adopted through the stable support of the support structure, so that the size of the hanging telescopic type airstairs is effectively reduced, and the hanging telescopic type airstairs are convenient to carry in transition.

Description

Externally hung telescopic airstairs

Technical Field

The utility model relates to a fighter plane is gone on and is equipped technical field, especially an external telescopic airstair.

Background

The boarding ladder is mainly Russian original equipment or a copy piece manufactured according to an original factory equipment structure, and although the structure adopts a folding design, the volume is still large after the structure is folded, and the boarding ladder is not convenient to transfer and carry.

The more commonly adopted scheme of the airplane in European and American countries is that the airstairs are designed to be a part of the airplane body, so that the airstairs need to be extended out like the airplane landing gear in the using process. By adopting the structure, the stability of the airstairs is higher, and the weight of the airplane can be increased.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem above, the utility model provides an external telescopic airstair hangs telescopic airstair in addition and can hang the cabin edge at the aircraft outward in the use to through the support that bearing structure is stable, adopt multistage extending structure simultaneously, effectually reduced its volume, convenient the transition is carried.

In order to realize the technical characteristics, the purpose of the utility model is realized as follows: an externally hung telescopic boarding ladder comprises main frame bodies, wherein two symmetrically arranged vertical rods are fixed between the main frame bodies, and the side wall of the upper part of each vertical rod is provided with a hook structure for hooking and connecting with a cabin opening of an airplane; a top-level ladder climbing rod is fixedly arranged in the middle of the main framework body through a hoop; a supporting plate assembly used for supporting the outer wall of the airplane is supported and mounted between the main frame body and the vertical rod; the bottom end of the top-level ladder-climbing rod is connected with a telescopic multi-level telescopic airstair assembly.

The hook structure comprises a hook mounting plate fixed on the side wall of the vertical rod, and a hook is fixedly mounted on the hook mounting plate.

And top boarding plates are arranged at different heights on the top stair climbing rod.

The supporting plate assembly comprises hinged seats fixed on the main frame body and the vertical rod, the hinged seats are hinged with a screw supporting assembly and a connecting rod respectively, the other ends of the screw supporting assembly and the connecting rod are fixed with supporting seats, and supporting plates are fixed at the tops of the supporting seats.

The multi-stage telescopic boarding ladder assembly comprises a plurality of telescopic rods with different section sizes, each telescopic rod is provided with a pedal, and a spring limit pin assembly is arranged between every two adjacent telescopic rods.

The spring limiting pin assembly comprises a positioning pin sleeve fixed on the outer wall of the telescopic rod, a positioning pin shaft is installed inside the positioning pin sleeve in a sliding fit mode, a handle is installed at the tail of the positioning pin shaft, the other end of the positioning pin shaft penetrates through a positioning pin hole in the telescopic rod of the inner layer, and a spring is installed outside the positioning pin shaft and inside the positioning pin sleeve.

The utility model discloses there is following beneficial effect:

1. through adopting the airstair of above-mentioned structure, it adopts outer hanging structure, can be convenient the hook in the cabin boarding gate position of aircraft to can support on the aircraft outer wall, at the in-process of boarding, only need expand multistage telescopic airstair subassembly, its length of regulation that just can be convenient makes its smooth extension to ground, and then makes things convenient for the personnel on ground to board. And after being folded, the portable electric toothbrush is small in volume and can be conveniently carried.

2. The whole boarding ladder can be hooked at the boarding gate of the airplane through the hook with the structure.

3. The supporting plate component with the structure can be conveniently contacted with the outer wall of an airplane, and then the whole boarding ladder is effectively supported.

4. The multi-stage telescopic rod can be stretched and contracted through the spring limit pin assembly, and can be locked.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a three-dimensional view of a first viewing angle of the present invention.

Fig. 2 is a three-dimensional view of a second perspective of the present invention.

Fig. 3 is a three-dimensional view of a third viewing angle of the present invention.

Fig. 4 is a front view of the present invention.

Fig. 5 is a sectional view taken along line a-a of fig. 4 according to the present invention.

Fig. 6 is a partially enlarged view of B in fig. 5 according to the present invention.

Fig. 7 is a state diagram after the present invention is developed.

In the figure: the lifting device comprises a clamp 1, a hook 2, a hook mounting plate 3, a top boarding plate 4, a top boarding rod 5, a vertical rod 6, a main frame body 7, a connecting rod 8, a screw supporting component 9, a hinged seat 10, a telescopic rod 11, a pedal 12, a spring limiting pin component 13, a supporting seat 14, a supporting plate 15, a handle 16, a positioning pin shaft 17, a spring 18, a positioning pin sleeve 19 and a positioning pin hole 20.

Detailed Description

The following describes embodiments of the present invention with reference to the accompanying drawings.

Referring to fig. 1-7, an external telescopic airstair comprises main frame bodies 7, two symmetrically arranged vertical rods 6 are fixed between the main frame bodies 7, and a hook structure for hooking and connecting with an airplane hatch is arranged on the upper side wall of each vertical rod 6; a top-level ladder climbing rod 5 is fixedly arranged in the middle of the main framework body 7 through a hoop 1; a supporting plate assembly used for supporting the outer wall of the airplane is supported and installed between the main frame body 7 and the vertical rod 6; the bottom end of the top-level ladder rod 5 is connected with a telescopic multi-level telescopic airstair assembly. Through adopting the airstair of above-mentioned structure, it adopts outer hanging structure, can be convenient the hook in the cabin boarding gate position of aircraft to can support on the aircraft outer wall, at the in-process of boarding, only need expand multistage telescopic airstair subassembly, its length of regulation that just can be convenient makes its smooth extension to ground, and then makes things convenient for the personnel on ground to board. And after being folded, the portable electric toothbrush is small in volume and can be conveniently carried.

Further, the hook structure comprises a hook mounting plate 3 fixed on the side wall of the vertical rod 6, and a hook 2 is fixedly mounted on the hook mounting plate 3. The whole boarding ladder can be hooked at the gate position of the airplane by the hook 2 with the structure.

Further, top boarding plates 4 are arranged at different heights on the top stair climbing rod 5. Through foretell top level boarding board 4 can make things convenient for the operation personnel to scramble.

Further, the supporting plate assembly comprises hinged seats 10 fixed on the main frame body 7 and the vertical rod 6, two hinged seats 10 are respectively hinged with a screw supporting assembly 9 and a connecting rod 8, the other ends of the screw supporting assembly 9 and the connecting rod 8 are fixed with a supporting seat 14, and a supporting plate 15 is fixed at the top of the supporting seat 14. The supporting plate component with the structure can be conveniently contacted with the outer wall of an airplane, and then the whole boarding ladder is effectively supported.

Further, the multi-stage telescopic boarding ladder assembly comprises a plurality of telescopic rods 11 with different section sizes, each telescopic rod 11 is provided with a pedal 12, and a spring limiting pin assembly 13 is arranged between every two adjacent telescopic rods 11. The multi-stage telescopic airstair component with the structure can be telescopic, and further the length of the multi-stage telescopic airstair component can be adjusted. Enabling it to extend to the ground.

Further, spring spacer pin subassembly 13 is including fixing the locating pin cover 19 on telescopic link 11 outer wall, locating pin 17 is installed through sliding fit inside the locating pin cover 19, handle 16 is installed to locating pin 17's afterbody, locating pin 17's the other end passes locating pin hole 20 on the telescopic link 11 of inlayer, locating pin 17's outside is and is located locating pin cover 19 internally mounted and has spring 18. The multi-stage telescopic rod 11 can be extended and retracted through the spring limiting pin assembly 13, and can be locked.

Furthermore, the hook and the supporting plate are interfaces for connecting the airstairs with the airplanes. The distance between the hook and the supporting plate has certain fine adjustment capability. The surface of the supporting plate is pasted with rubber, so that the damage to the airplane body is avoided.

Further, the multi-stage telescopic rod 11 is made of an aluminum square tube; the pedal 12 is made of aluminum, and the upper surface of the pedal is provided with patterns so as to avoid skidding when being stepped on by feet; the spring limit pin assembly 13 plays a role in locking each telescopic joint, and in order to ensure safety, the natural state of the spring limit pin assembly is a locking state and is positioned on the back of the climbing surface.

The utility model discloses a use as follows:

when boarding is needed, the boarding ladder is unfolded from a contracted state to a working state, and the method comprises the following specific steps: the positioning pin shafts 17 are pulled up one by one, each telescopic rod 11 is pulled out to the position, and the positioning pin shafts 17 are loosened to lock the telescopic rods 11. At the moment, the airstairs can be hung on the plane for boarding; after the telescopic rod is used, the telescopic rod is converted into a contraction state, and only the positioning pin shafts 17 need to be pulled up one by one, each telescopic rod 11 is contracted to the right position, and the spring limiting pin assembly 13 is loosened to enable the pin to lock each telescopic joint.

Claims (6)

1. The utility model provides an external telescopic airstair which characterized in that: the aircraft hatch hook comprises main frame bodies (7), two symmetrically arranged vertical rods (6) are fixed between the main frame bodies (7), and hook structures used for being hooked and connected with an aircraft hatch are arranged on the side wall of the upper part of each vertical rod (6); a top ladder climbing rod (5) is fixedly arranged at the middle part of the main frame body (7) through a hoop (1); a supporting plate assembly used for supporting the outer wall of the airplane is supported and mounted between the main frame body (7) and the vertical rod (6); the bottom end of the top-level ladder-climbing rod (5) is connected with a telescopic multi-level telescopic airstair assembly.

2. The external telescopic airstairs of claim 1, wherein: the hook structure comprises a hook mounting plate (3) fixed on the side wall of the vertical rod (6), and a hook (2) is fixedly mounted on the hook mounting plate (3).

3. The external telescopic airstairs of claim 1, wherein: and top boarding plates (4) are arranged at different heights on the top stair climbing rod (5).

4. The external telescopic airstairs of claim 1, wherein: the supporting plate assembly comprises hinged seats (10) fixed on a main frame body (7) and a vertical rod (6), two hinged seats (10) are respectively hinged with a screw supporting assembly (9) and a connecting rod (8), the other ends of the screw supporting assembly (9) and the connecting rod (8) are fixed with supporting seats (14), and supporting plates (15) are fixed at the tops of the supporting seats (14).

5. The external telescopic airstairs of claim 1, wherein: the multi-stage telescopic boarding ladder assembly comprises a plurality of telescopic rods (11) with different section sizes, pedals (12) are mounted on each telescopic rod (11), and a spring limit pin assembly (13) is mounted between every two adjacent telescopic rods (11).

6. The external telescopic airstairs of claim 5, wherein: spring stop pin subassembly (13) is including fixing locating pin cover (19) on telescopic link (11) outer wall, locating pin axle (17) are installed through sliding fit to locating pin cover (19) inside, handle (16) are installed to the afterbody of locating pin axle (17), locating pin hole (20) on telescopic link (11) of inlayer are passed to the other end of locating pin axle (17), the outside of locating pin axle (17) is located locating pin cover (19) internally mounted and has spring (18).

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