The present invention relates to the walking aid field. The present invention provides a walking aid, including a support frame, with a plurality of support legs disposed at a bottom of the support frame, and omni-directional wheels disposed on the support legs, wherein a buffering structure is further disposed between each support leg and each omni-directional wheel. In the walking aid provided by the present invention, a buffering structure is disposed between a support frame structure and an omni-directional wheel of the walking aid. On the one hand, the buffering structure may have a buffering effect in use of the entire walking aid, and when the walking aid contacts the ground, can act as a buffer to reduce physical energy consumption of a user in use of the walking aid, and lessen discomfort of the user as much as possible; on the other hand, when the walking aid stops moving, the buffering structure can better support the walking aid securely on the ground, and when the walking aid stops, apply force downward to the walking aid, so that four effective contacts are formed by the casing of the buffering structure.
1. A walking aid, comprising a support frame, with a plurality of support legs disposed at a bottom of the support frame, and omni-directional wheels disposed on the support legs, wherein a buffering structure is further disposed between each support leg and each omni-directional wheel, and the buffering structure comprises a casing for interacting with the bottom of the support leg and an elastic component that is disposed in the casing and fixedly connected to the omni-directional wheel, wherein
the elastic component comprises a movable shaft inserted in the casing, a limiting movable block that is fixedly disposed at one end of the movable shaft and fixedly connected to the omni-directional wheel, and an elastic element that is disposed between the movable shaft and the limiting movable block,
a first channel for the movable shaft to pass through is disposed in the casing, the movable shaft is inserted in the first channel, and a butting top surface is disposed on the top of the movable shaft, wherein the butting top surface butts a top surface of the casing,
a second channel connected to the first channel and a third channel connected to the second channel are further disposed in the casing, wherein a first step-like surface is formed between the second channel and the first channel, a second step-like surface is formed between the second channel and the third channel, and the limiting movable block comprises a movable block that is disposed in the third channel and capable of butting the second step-like surface, and a sleeve that is vertical to the movable block and disposed in the second channel, wherein one end of the movable shaft is fixedly disposed in the sleeve, and a shaft lever of the omni-directional wheel is fixedly disposed in the sleeve.
2. The walking aid according to claim 1 , wherein a connecting end for cooperating with the support leg is disposed on the top of the casing, wherein the connecting end is inserted in the support leg.
3. The walking aid according to claim 1 , wherein the elastic element is disposed in the second channel and surrounds the movable shaft and an exterior of the sleeve of the limiting movable block, wherein one end of the elastic element butts the first step-like surface, and the other end butts a top surface of the movable block.
4. The walking aid according to claim 1 , wherein the elastic element is a compression spring.