Wheels with directional and locking functions

Abstract

A wheel with orientation and locking functions has a housing, a limiting member fixed inside the housing, and an axle tube pivotally mounted on the housing. The axle tube is equipped with an actuating component that can move up and down. The actuating component can engage with the limiting member to keep the wheel in an oriented walking state in which the housing cannot rotate relative to the axle tube. The limiting member is made of metal, so it can have better durability.

Claims

1. A wheel assembly with directional and locking functions, comprising: A housing shaft assembly has an outer shell that defines a housing chamber. A limiting member made of metal is fixedly disposed in the housing chamber. The limiting member has a limiting groove extending through it. A column seat is also fixedly disposed in the housing chamber. The column seat is assembled with at least one spring positioning column located below the limiting member. The outer shell is also pivotally disposed with a shaft tube, and a tube chamber communicating with the housing chamber is formed inside the shaft tube. An actuation assembly includes an actuating rod installed in the chamber of a tube and movable up and down along the chamber. The actuating rod is non-rotating. The end of the actuating rod extends into the housing. The actuating rod is fixedly provided with a directional member and a brake member, both located in the housing. The directional member is located between the directional member and the spring positioning post. The directional member protrudes to form a locking portion. The directional member has a plurality of directional holes arranged in a ring opposite to the locking portion. The actuating rod can move upward to engage the locking portion with the directional groove, or move downward to engage the directional holes with the spring positioning post. An actuating spring is sleeved on the actuating rod. The two ends of the actuating spring abut against the outside of the actuating rod and the inside of the chamber, respectively. A follower control is also fixedly provided at the upper end of the actuating rod. A wheel is pivotally mounted in the housing. The wheel corresponds to the brake member below the wheel, such that when the directional hole is engaged by the spring positioning post, the brake member also abuts against the wheel. A control device installed in the pipe chamber has a cam with a plurality of cam slots of different depths recessed on the outer side of the cam. The cam can be rotated so that the control device is engaged in any of the cam slots or is pressed against the outer side of the cam.

2. A wheel assembly with orientation and locking functions as described in claim 1, wherein, The directional holes are arranged in an even ring.

3. A wheel assembly with orientation and locking functions as described in claim 1, wherein, The actuator and the directional component are manufactured as a single piece.

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