Barrier-free moving balance car

Abstract

A barrier-free moving balance car comprises a bearing platform, a frame part and a wheel set part, the bearing platform is supported above the frame part, the wheel set part is connected with the frame part, the frame part comprises a first quadrangle located on the upper portion and a second quadrangle located on the lower portion, and the first quadrangle and the second quadrangle are equal in size; wherein each of the first quadrangle and the second quadrangle comprises two connecting rods and shaft rods respectively connected between two ends of the two connecting rods, the shaft rods arerotatably connected with the connecting rods, the pair of bases are respectively arranged at two ends of the first quadrangle and the second quadrangle, and the bases at least extend between the firstquadrangle and the second quadrangle; each base is fixedly connected with the shaft rods of the first quadrangle and the second quadrangle at the end where the base is located, and the connecting rodof the first quadrangle, the connecting rod of the second quadrangle and the pair of bases located on the same side of the frame part form a parallelogram. The balance car can safely and stably passthrough flat roads, rugged roads, narrow spaces and stairs, and is easy and convenient to operate and high in walking efficiency.

Description

technical field [0001] The invention relates to a barrier-free mobile balance vehicle, which is suitable for barrier-free passage on various terrains such as flat ground, rough roads, and stairs. Background technique [0002] The barrier-free mobile balance car is suitable for carrying objects and people. The barrier-free mobile balance car for loading is usually used in the field of logistics handling, and the barrier-free mobile balance car for people is usually used to help the disabled and the elderly in various places. Accessibility, especially helping them up and down stairs. [0003] Existing barrier-free mobile balancing vehicles are roughly divided into two types: one is wheeled, and the other is a combination of crawler tracks and wheels. The wheeled balance car shakes a lot during walking, and its grip is not strong when going up and down stairs, and there is a risk of toppling over; when the track and wheel combined balance car walks on flat ground, the wheels a...

AI Technical Summary

Problems solved by technology

[0005] First, the crawlers on the left and right sides of the self-balancing vehicle are integrated. When crossing the joint between the stairs and the platform, due to the lack of support at the rear of the car body, the platform cannot be reached only by the crawlers. It is necessary to configure auxiliary support devices, such as installing retractable Put the auxiliary wheels, so that when reaching the junction of the stairs and the platform, put down the auxiliary wheels to support the rear of the car body, help the crawler to reach the platform, and then retract the auxiliary wheels when reaching the platform, such a design exists The problem of cumbersome operation and low efficiency of climbing stairs;

[0006] Second, the balance car will swing when climbing stairs, such as Figure 1a and Figure 1b As shown, when the track touches the stairs and prepares to climb the stairs, the angle between the track and the ground is a. When the track climbs up the stairs, the front end of the track gradually lifts up, and the angle between the track and the ground The angle gradually becomes larger. When the track is about to reach the plane of the stair step, the angle between the track and the ground increases to b. When the angle is too large, it is easy to cause the track to slip, and at the same time, during the whole process of climbing stairs, The self-balancing car is constantly swinging. Similarly, when going downstairs, the self-balancing car is also swinging, which makes the carrying platform unable to maintain a level, and the passengers feel bumpy and unstable;

[0007] Third, the existing combined balance car can only climb stairs in one direction. For double-run stairs and multi-run stairs, the directions of the two adjacent steps are opposite. Therefore, when the balance car reaches the middle platform, it needs to turn around. To complete the U-turn, it is necessary to switch the track ground of the balance car to the wheel ground, and then switch the wheel ground to the track ground after the U-turn is completed. This design makes the operation more cumbersome when climbing stairs, and the crawling efficiency is lower;

[0008] In addition, usually the space in the middle platform is narrow, and it is difficult to turn the direction of the balance car. For the disabled and the elderly, there are potential safety hazards.

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