CN2584515Y

CN2584515Y - Hand airstair

Info

Publication number: CN2584515Y
Application number: CN 02258200
Authority: CN
Inventors: 尤瑞昌
Original assignee: Wuxi Tianyi Airport Equipment Co ltd
Current assignee: Wuxi Tianyi Airport Equipment Co ltd
Priority date: 2002-10-30
Filing date: 2002-10-30
Publication date: 2003-11-05
Anticipated expiration: 2012-10-30

Abstract

The utility model discloses a hand pushing type passenger stair for getting on a plane, which comprises a removable type load bearing body, wherein, the circumference of the removable type load bearing body is symmetrically provided with telescopic supporting feet, and a stair body is arranged on the removable type load bearing body; the lower end of the stair body is hinged at the rear end of the removable type load bearing body, and a climbing mechanism is arranged between the front end of the stair body and the removable type load bearing body. The removable type load bearing body is provided with a base frame, the base frame forms a plate shape, and the bottom of the base frame is provided with a rolling wheel. The stair for getting on a plane has the advantages of comparative low production cost and use cost, and is suitable for embarkation and debarkation of passengers in an airport.

Description

The hand propelled airstair

Technical field

The utility model relates to a kind of movably ladder.Be to aim at the matching used hand propelled airstair of passenger plane specifically, be applicable to the usefulness that the airport goes on or off the plane as the passenger.

Background technology

At present, boarding with ladder all is to adopt automobile as its supporting body, is about to ladder and is installed on the automobile, relies on moving of automobile to realize moving of ladder.Though automobile can be used as the portable supporting body of ladder, the buying expenses of automobile and maintenance and repair expense are all higher, and require also high to driver's technical ability.Therefore.The productive costs of this airstair and use cost are all than higher.

Summary of the invention

The purpose of this utility model is to provide a kind of hand propelled airstair.This hand propelled airstair, productive costs and use cost are all lower.

Above-mentioned purpose of the present utility model is realized by following technical solution:

Hand propelled airstair of the present utility model comprises portable supporting body, around this movable type supporting body scalable leg is installed symmetrically, and terraced body is arranged above it.The lower end of ladder body is hinged on the rear end of portable supporting body, between front end and portable supporting body lifting body is arranged.Be characterized in that said portable supporting body contains underframe, this underframe is tabular, and its bottom is equipped with roller.

Adopt such scheme, have the following advantages:

Since hand propelled airstair of the present utility model change traditional automobile as portable supporting body be the bottom have roller tabular underframe as portable supporting body, saved car chassis and driving engine, greatly reduce productive costs.Owing to do not have car chassis and driving engine, do not need fuel again, do not need special navigating mate, and need not keep in repair substantially, can reduce use cost greatly again.It is calculated that the operating cost of the manufacturing cost of hand propelled Airstair of the present utility model and 8 years only is as 1/6 of the Airstair of portable supporting body with automobile.

Description of drawings

Fig. 1 is the hand propelled airstair structural representation that has omitted leg;

Fig. 2 has the A of Fig. 1 of leg to scheme drawing;

Fig. 3 is the I point enlarged diagram of Fig. 1.

The specific embodiment

See Fig. 1, Fig. 2, hand propelled airstair of the present utility model comprises portable supporting body, and this movable type supporting body comprises underframe 5, four rolling 7 is arranged below the underframe 5.Roller 7 wherein is a cardan wheel.Around the underframe 5 four scalable legs 10 are installed symmetrically, this scalable leg is fixed on the underframe 5 by bearing, and its height can be regulated.

Ladder body 2 is installed on the underframe 5, and the rear end of its rear end end face and underframe 5 is hinged, and its upper end and 5 on underframe are provided with lifting body.As shown in Figure 2, this lifting body is a framed structure, and it has two to be the scalable column 1 that is arranged in parallel and three stulls 9 that are used to be connected two columns 1.Two scalable columns 1 constitute by inner prop and urceolus, and the lower end of the upper end of two inner props and two urceolus is hinged by the bottom and the underframe 5 of key seat, pin and terraced body 2 upper ends respectively.See Fig. 3, on the scalable column 1 catch gear is installed, this catch gear contains a key seat 3 and latch segment 11, and key seat 3 is fixed on the urceolus, and its bottom is processed with horizontal pin-and-hole.The bottom of latch segment 11 also is processed with pin-and-hole, and the two is hinged by means of the pin-and-hole of bearing pin 13 and its bottom.Be processed with vertical groove and zig-zag step on latch segment 11 corresponding urceolus and the inner prop, latch segment 11 upper inner are resisted against in the zig-zag step on the inner prop.Torque arm 4 and spring 12 also are installed on the latch segment 11, can make the top of latch segment 11 break away from zig-zag step on the inner prop, contract so that make under the inner prop, and then reduce the height of terraced body 2 upper ends by means of this torque arm and spring.

See Fig. 2, height adjustment mechanism 8 is installed on the said lifting body, this height adjustment mechanism is hydraulic ram (also can be manual oil cylinder), and its lower end is fixed in stull 9 in centre of lifting body, and the upper end is processed with pin-and-hole.Be processed with key seat accordingly on the lower surface on ladder body 2 tops, the piston rod upper end of hydraulic ram is hinged by means of the upper end of bearing pin and this key seat and terraced body 2, so that regulate the upper end height of terraced body 2.

In addition, also be provided with stop mechanism 6 on the underframe.The roller rotating speed is slowed down or stop operating by means of this stop mechanism.

Claims

1. the hand propelled airstair comprises portable supporting body; Around the portable supporting body scalable leg (10) is installed symmetrically, terraced body (2) is arranged above it; The lower end of ladder body (2) is hinged on the rear end of portable supporting body, between front end and portable supporting body lifting body is arranged; It is characterized in that said portable supporting body contains underframe (5), this underframe is tabular, and its bottom is equipped with roller (7).

2. hand propelled airstair according to claim 1, it is characterized in that said lifting body is made of two scalable columns (1) that are set in parallel and stull (9), the upper and lower side of two columns (1) is hinged with the upper end of terraced body (2) and the underframe (5) of portable supporting body respectively; Between stull of lifting body (9) and portable carrier upper end height adjustment mechanism (8) is arranged.

3. hand propelled airstair according to claim 2 is characterized in that said height adjustment mechanism (8) is a hydraulic ram, and the lower end of this hydraulic ram is fixed in the stull (9), and its upper end is hinged with terraced body (2) upper end.

4. hand propelled airstair according to claim 2 is characterized in that on the said scalable column (1) catch gear being installed, and this catch gear comprises the key seat (3) that is fixed on scalable column (1) urceolus, and key seat has horizontal pin-and-hole on (3); Latch segment (11) bottom is moving type by means of bearing pin (13) and this transverse holes and is installed on the key seat (3); With on the outer sleeve of latch segment (11) corresponding position and on the inner prop vertical groove and zig-zag step are arranged respectively, latch segment (11) upper end is inboard pass behind the vertical groove of outer sleeve with inner prop on the zig-zag step offset; Torque arm (4) also is housed on the bearing pin (13), and this torque arm is connected by the upper end of spring (12) with latch segment (11).