Six-wheel cross-country wheelchair chassis and cross-country wheelchair

Abstract

The invention provides a six-wheel cross-country wheelchair chassis and a cross-country wheelchair. The six-wheel cross-country wheelchair chassis comprises a chassis assembly, wherein a gravity center balancing assembly is mounted at the center of the chassis assembly; the gravity center balancing assembly comprises four wheel connecting frames, a second switching rod and a switching shock-proof mechanism; a first rear wheel connecting frame, a second rear wheel connecting frame, a first front wheel connecting frame and a first front wheel connecting frame are connected to an active moving point of the switching shock-proof mechanism through the second switching rod; and the switching shock-proof mechanism is used for driving the two wheel connecting frames positioned on a diagonal line to synchronously rotate upwards or downwards. When the wheel connecting frame on any side moves upwards, the other wheel connecting frame positioned on the diagonal line can also equivalently move upwards under the driving of the switching shock-proof mechanism, and the two wheel connecting frames positioned on the other diagonal line are synchronously pressed downwards by the switching shock-proof mechanism, so that the gravity center is balanced, and the risk of excessive inclination and overturning is reduced.

Description

technical field [0001] The invention belongs to the technical field of wheelchair manufacturing, in particular to a chassis of a six-wheel off-road wheelchair and an off-road wheelchair. Background technique [0002] With the current wheelchair technology in society, especially wheelchairs equipped with shock absorbing springs, when the wheelchair is driving on a steep slope front and rear or on a slope left and right, the center of gravity will tilt to the lower side, causing the wheelchair to have a great risk of tipping over; When turning quickly, the centrifugal force will cause the center of gravity to shift from the inside to the outside. At the same time, the wheelchair beam will lift up with less gravity on the inside and increase and fall on the outside. At this time, it is also prone to the danger of tilting and overturning; Wheel structure, four-wheel wheelchair ride comfort is insufficient, when walking on a bumpy road section, the bumpy feeling is obvious. Con...

AI Technical Summary

Problems solved by technology

[0002] With the current wheelchair technology in society, especially wheelchairs equipped with shock absorbing springs, when the wheelchair is driving on a steep slope front and rear or on a slope left and right, the center of gravity will tilt to the lower side, causing the wheelchair to have a great risk of tipping over; When turning quickly, the centrifugal force will cause the center of gravity to shift from the inside to the outside. At the same time, the wheelchair beam will lift up with less gravity on the inside and increase and fall on the outside. At this time, it is also prone to the danger of tilting and overturning; The four-wheeled wheelchair has insufficient ride comfort, and when walking on a bumpy road, the bumpy feeling is obvious

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