阅读说明：本技术 一种伸缩式隐藏活动踏板 (Telescopic hidden movable pedal ) 是由 高海燕 冯冬翔 甘亚东 于 2020-12-29 设计创作，主要内容包括：本发明属于飞机舱门机构设计领域,具体涉及一种伸缩式隐藏活动踏板。包括：拉杆(1),活动踏板(2),两个后部导向槽(3)以及两个后部滚轮组件(6),其中,拉杆(1)一端与设置在舱门上的伸缩机构连接,拉杆(1)另一端与活动踏板(2)的后部连接,两个后部导向槽(3)并行设置在舱门上,活动踏板(2)的左右两个边缘分别设置有后部滚轮组件(6),活动踏板(2)能够借助滑轨组件在两个后部导向槽滑动(3)。本发明的伸缩式隐藏活动踏板,在门梯合一登机门处于开启状态时,伸出,供乘客登、离机使用；门梯合一登机门处于关闭状态时,需要将踏板收缩隐藏。既满足距离要求又不会与门框干涉。(The invention belongs to the field of design of aircraft cabin door mechanisms, and particularly relates to a telescopic hidden movable pedal. The method comprises the following steps: the novel cabin door structure comprises a pull rod (1), a movable pedal (2), two rear guide grooves (3) and two rear roller assemblies (6), wherein one end of the pull rod (1) is connected with a telescopic mechanism arranged on the cabin door, the other end of the pull rod (1) is connected with the rear portion of the movable pedal (2), the two rear guide grooves (3) are arranged on the cabin door in parallel, the rear roller assemblies (6) are arranged on the left edge and the right edge of the movable pedal (2) respectively, and the movable pedal (2) can slide (3) in the two rear guide grooves by means of a sliding rail assembly. The telescopic hidden movable pedal extends out when the door-ladder integrated boarding door is in an open state, and is used for passengers to board and leave; when the gate ladder unification gate is in the closed condition, need to hide the footboard shrink. Not only meets the distance requirement but also can not interfere with the doorframe.)

1. A retractable hidden movable step, comprising: the novel cabin door structure comprises a pull rod (1), a movable pedal (2), two rear guide grooves (3) and two rear roller assemblies (6), wherein one end of the pull rod (1) is connected with a telescopic mechanism arranged on the cabin door, the other end of the pull rod (1) is connected with the rear portion of the movable pedal (2), the two rear guide grooves (3) are arranged on the cabin door in parallel, the rear roller assemblies (6) are arranged on the left edge and the right edge of the movable pedal (2) respectively, and the movable pedal (2) can slide (3) in the two rear guide grooves by means of a sliding rail assembly.

2. A movable pedal according to claim 1, characterised in that the rear roller assembly (6) comprises: the roller support comprises a roller support body and rollers, wherein one end of the roller support body is of a groove-shaped structure, the other end of the roller support body is provided with a roller mounting hole, the rollers are arranged in the roller mounting hole, the edge of the movable pedal (2) is arranged in the groove-shaped structure of the roller support body and fixedly connected with the groove-shaped structure, the outer diameter of each roller is in contact with the rear guide groove, and therefore the movable pedal (2) can slide along the rear guide groove.

3. The movable pedal according to claim 1, wherein the number of the rollers is three, and the three rollers are respectively in contact with two inner sidewalls of the rear guide groove (3) and one outer sidewall of the rear guide groove (3) so that the movable pedal (2) does not shake.

4. The movable pedal according to claim 3, further comprising a front roller assembly (5) and a front guide groove (4), wherein the front guide groove (4) is fixed at a lower portion of the movable pedal and a groove length direction is parallel to a moving direction of the movable pedal (2), and the front roller assembly (5) comprises a roller bracket fixed at the door, and a roller fixed at the roller bracket and disposed in the front guide groove (4).

5. The movable pedal of claim 4 further comprising: the front roller components (5) and the front guide groove (4) are divided into two groups.

6. Movable pedal according to claim 5, characterized in that two front guide grooves (4) are provided at the left and right distance quarter positions of the pedal, respectively.

7. A movable pallet according to claim 6, characterized in that the front roller assembly (5) does not extend beyond the front edge of the movable pallet (2) in the condition of pallet retraction.

8. The movable pedal according to claim 1, further comprising a dowel cone (8), wherein the dowel cone (8) is disposed below the pedal, and the dowel cone (8) is oriented parallel to the pedal, and a dowel cone hole (7) is provided in the hatch door, into which the dowel cone is inserted when the pedal is extended.

Technical Field

The invention belongs to the field of design of aircraft cabin door mechanisms, and particularly relates to a telescopic hidden movable pedal.

Background

For a gate-ladder combined boarding gate, the first step of the boarding gate is required not to be too high from the ground, but when the boarding gate is not high from the ground, the gate can interfere with a door frame when being folded, so that a pedal which can meet the distance requirement and cannot interfere with the door frame needs to be designed.

Disclosure of Invention

The purpose of the invention is as follows: the telescopic hidden movable pedal not only meets the distance requirement, but also cannot interfere with a doorframe.

The technical scheme is as follows:

in a first aspect, there is provided a retractable hidden movable pedal comprising: the novel cabin door structure comprises a pull rod 1, a movable pedal 2, two rear guide grooves 3 and two rear roller assemblies 6, wherein one end of the pull rod 1 is connected with a telescopic mechanism arranged on the cabin door, the other end of the pull rod 1 is connected with the rear portion of the movable pedal 2, the two rear guide grooves 3 are arranged on the cabin door in parallel, the rear roller assemblies 6 are arranged on the left edge and the right edge of the movable pedal 2 respectively, and the movable pedal 2 can slide 3 in the two rear guide grooves by means of a sliding rail assembly.

Further, the rear roller assembly 6 includes: gyro wheel support and gyro wheel, wherein, gyro wheel support one end is the trough-shaped structure, and the gyro wheel support other end is provided with the gyro wheel mounting hole, and the gyro wheel setting is in the gyro wheel mounting hole, and movable footboard 2 edge setting in the trough-shaped structure of gyro wheel support and with trough-shaped structure fixed connection, the contact of gyro wheel external diameter and rear portion guide way for movable footboard 2 can slide along the rear portion guide way.

Further, the number of the rollers is three, and the three rollers are respectively in contact with two inner side walls of the rear guide groove 3 and one outer side wall of the rear guide groove 3, so that the movable pedal 2 does not shake.

Further, the movable pedal type car door further comprises a front roller assembly 5 and a front guide groove 4, wherein the front guide groove 4 is fixed at the lower part of the movable pedal, the length direction of the groove is parallel to the moving direction of the movable pedal 2, the front roller assembly 5 comprises a roller bracket and a roller, the roller bracket is fixed on the door, the roller is fixed on the roller bracket, and the roller is arranged in the front guide groove 4.

Further, still include: the front roller assemblies 5 and the front guide grooves 4 are two groups.

Further, two front guide grooves 4 are provided at a quarter of the left-right distance of the step, respectively.

Further, the front roller assemblies 5 do not extend beyond the front edge of the movable step 2 with the step retracted.

Further, still include locating pin awl 8, wherein locating pin awl 8 sets up in the footboard below to 8 directions of locating pin awl are parallel with the footboard direction, are provided with round pin awl hole 7 on the hatch door, and when the footboard stretched out, the locating pin awl was inserted in the round pin awl hole.

Has the advantages that:

the telescopic hidden movable pedal extends out when the door-ladder integrated boarding door is in an open state, and is used for passengers to board and leave; when the gate ladder unification gate is in the closed condition, need to hide the footboard shrink. Not only meets the distance requirement but also can not interfere with the doorframe.

Drawings

FIG. 1 is a schematic view of a retractable hidden movable pedal according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the wheel assembly and the guide groove of a retractable hidden movable pedal, taken perpendicular to the direction of movement of the pedal, according to an embodiment of the present invention;

FIG. 3 is a view showing the assembly relationship between the roller and the guide groove of the retractable hidden movable pedal according to the embodiment of the present invention;

fig. 4 is a sectional view of the roller assembly and the guide groove of the telescopic hidden movable pedal according to the embodiment of the invention along the movement direction of the pedal.

The device comprises a pull rod 1, a movable pedal 2, a rear guide groove 3, a front guide groove 4, a front roller assembly 5, a rear roller assembly 6, a pin taper hole 7, a pin taper hole 8 and a double-lug joint 9.

Detailed Description

In order to solve the problems, the invention provides a telescopic hidden movable pedal which can be telescopic, and when an airplane cabin door is opened and put down, the movable pedal extends out for aircrew and passengers to get on and off the airplane; when the door of the airplane is closed, the movable pedal is contracted, and the volume of the door of the airplane is reduced.

The following detailed description is made with reference to the accompanying drawings.

A telescopic hidden movable pedal comprises a pull rod 1, a movable pedal 2, a rear guide groove 3, a front guide groove 4, a front roller assembly 5, a rear roller assembly 6, a pin cone hole 7 and a positioning pin cone 8, which are shown in figures 1, 2 and 4. The two rear guide grooves 3 are respectively and fixedly connected with the cabin door structure, the two rear guide grooves 3 are arranged on two sides of the movable pedal 2 in parallel, two rear roller assemblies 6 are respectively connected with two sides of the rear part of the movable pedal 2, each rear roller assembly 6 comprises a roller bracket and three rollers, one end of each roller bracket is of a groove-shaped structure, the other end of each roller bracket is provided with three roller mounting holes, each roller mounting hole is provided with one roller, the edge of the movable pedal 2 is arranged in the groove-shaped structure of the roller bracket and is fixedly connected with the groove-shaped structure, the outer diameters of the two rollers are contacted with two inner side walls of the rear guide grooves 3, the axes of the rollers are perpendicular to the bottom surface of the groove as shown in figure 3, the outer diameter of the other roller is contacted with the outer side wall of the rear guide groove 3, and the; the movable pedal 2 is slidable in the two rear guide grooves 3 by means of the rear roller assemblies 6. The left part of the rear part of the movable pedal 2 is fixedly connected with a double-lug joint 9; one end of the pull rod 1 is connected with a telescopic mechanism arranged on the cabin door, and the other end of the pull rod 1 is connected with a double-lug joint 9 on the movable pedal 2; the lower part of the front part of the movable pedal 2 is fixedly connected with a front guide groove 4 at a quarter of the left-right distance, the length direction of the groove is parallel to the telescopic direction of the movable pedal, two front roller assemblies 5 are fixedly connected with a cabin door structure respectively, the front roller assemblies 5 do not exceed the front edge of the pedal in the retracting state of the movable pedal 2, each front roller assembly 5 is provided with two rollers, one of the rollers is clamped in the groove of the front guide groove 4, the axis of the roller is vertical to the bottom of the groove, the outer diameter of the other roller is contacted with the outer bottom surface of the groove of the front guide groove 4, and the axis of the roller is parallel to the bottom surface of the groove and is vertical to the inner side wall of the; the middle part of the rear part of the movable pedal 2 is fixedly connected with a positioning pin cone 8, a pin cone hole 7 is fixedly connected with a cabin door structure, the hole axis of the pin cone hole 7 and the hole axis of the positioning pin cone 8 are on the same line, and when the pedal extends out, the positioning pin cone is inserted into the pin cone hole, as shown in figure 4.

The working principle is as follows:

when the cabin door is opened, the cabin door is turned over to a certain angle, the cabin door mechanism drives the pull rod 1, the pull rod 1 pushes the movable pedal 2, the movable pedal 2 drives the rear roller assembly to extend out on the rear guide groove 3 through the rolling of the roller, meanwhile, the front guide groove 4 moves along with the movable pedal 2, and the roller of the front roller assembly 5 rolls in the front guide groove 4; in the extending process of the movable pedal 2, because the rollers of the rear roller assemblies 6 on the left side and the right side are respectively contacted with three surfaces of the rear guide grooves 3 on the left side and the right side, and the rollers on the front roller assemblies 4 on the left side and the right side are respectively contacted with three surfaces of the front guide grooves 4 on the left side and the right side, the movable pedal 2 can stably move and extend, and meanwhile, when the movable pedal 2 completely extends, the positioning pin cone 8 is sleeved in the pin cone hole 7, and passengers can stably feel when stepping on the movable pedal 2; after the movable pedal is completely extended, the cabin door touches the ground, and at the moment, the movable pedal 2 is used for passengers and crew members to get on and off the airplane. In the process of turning the cabin door upwards and closing the cabin door, when the cabin door is turned upwards for a certain angle, the cabin door mechanism drives the pull rod 1, the pull rod 1 pulls the movable pedal 2 to retract, in the retracting process, the rollers of the rear roller assemblies 6 move in the rear guide grooves 3, and the rollers of the front roller assemblies 5 move in the front guide grooves 4. Through the front roller assembly 5 and the rear roller assembly 6, the movable pedal is ensured to slide smoothly and stably without clamping stagnation in the retraction process.

The telescopic hidden movable pedal design realizes the functional requirement of hiding the movable pedal of the cabin door airstairs after the cabin doors are closed, the mechanism has compact design and ingenious arrangement, and the pedal has moderate ground clearance, beautiful layout and avoids interference without occupying space. The movable pedal is in a form that the cabin door is prevented from interfering with the door frame in the process of being folded, meanwhile, the space occupied in the airplane cabin is reduced after the cabin door is closed, the movable pedal is attractive, the movable pedal moves stably and smoothly in the process of extending and retracting, and passengers can climb on and leave the airplane and tread stably after extending.