The disclosure provides a baby carriage brake mechanism and a baby carriage. The baby carriage brake mechanism includes a frame, a brake drive assembly, linkage assemblies, brake locks and wheels. The brake drive assembly is disposed on the frame. The linkage assemblies are respectively slidably disposed on the frame on both of left and right sides. Both ends of the brake drive assembly are respectively in abutting connection with the two linkage assemblies. The linkage assemblies are coupled to the brake locks. Two wheels are respectively pivotally disposed at both sides of the frame. By driving the brake drive assembly to push the linkage assemblies to act with the brake locks, the brake locks on both sides are engaged with the wheels, thereby locking the wheels on both sides. Therefore, the baby carriage brake mechanism of the disclosure may brake wheels on both sides simultaneously with simple operation.

A delivery system includes a handheld electric lift configured to lift at least one vaporizer vessel, and a cabinet configured to hold the at least one vaporizer vessel. The lift includes an elongated mast, an effector attached to the mast, a handler configured to move the lift, and at least one caster. The effector is controlled by an electric power source to move along the mast. Each of the at least one caster includes a stopper and a wheel. The stopper is elongated and is disposed above the wheel. The stopper is configured to engage with the wheel to prevent the wheel from swiveling when the stopper is pushed down. The stopper is further configured to disengage with the wheel to allow the wheel to swivel when the stopper is released. The cabinet includes at least one channel configured to accommodate the at least one caster.

The disclosure provides a baby carriage brake mechanism and a baby carriage. The baby carriage brake mechanism includes a frame, a brake drive assembly, linkage assemblies, brake locks and wheels. The brake drive assembly is disposed on the frame. The linkage assemblies are respectively slidably disposed on the frame on both of left and right sides. Both ends of the brake drive assembly are respectively in abutting connection with the two linkage assemblies. The linkage assemblies are coupled to the brake locks. Two wheels are respectively pivotally disposed at both sides of the frame. By driving the brake drive assembly to push the linkage assemblies to act with the brake locks, the brake locks on both sides are engaged with the wheels, thereby locking the wheels on both sides. Therefore, the baby carriage brake mechanism of the disclosure may brake wheels on both sides simultaneously with simple operation.

There is provided a pram frame (200) comprising a first roller attachment point (221) configured to engage with a first roller set (121) and a mechanism (231) configured to engage with the first roller set (121) via the first roller attachment point (221). The mechanism (231) is configured to provide driven steering of the first roller set (121) when a user steers the pram frame (200).

The present invention relates to a removable electric propulsion system (1) for a rolling object. Propulsion system (1) comprises a frame (2) with a driven wheel (3) and at least one non-driven wheel (4). Among these non-driven wheels (4), one at least is an orientable off-centered wheel. System (1) also comprises means for coupling at least one wheel of the rolling object. System (1) also comprises an automatic directional locking device for locking the rotation about a vertical axis of at least one of the orientable off-centered wheels in a predetermined direction.

The invention also relates to a coupled assembly comprising a propulsion system (1) and a rolling object.

The invention further relates to a method for directional and automatic locking of at least one orientable off-centered wheel of a propulsion system.

The present invention relates to a mobile housekeeping cart having a base supported by casters and wheels, where the casters have user-accessible swivel-lock levers to aid in controlling the motion of the mobile cart. Brackets extend downward from the corners of the base as housings for wall-protecting corner rollers. The corner rollers are positioned at a sufficiently low height so that the adjustable shock absorption rollers will impact base trim on walls instead of the wall surfaces themselves. The cart also has a main body storage area with an adjustable shelf, and a top storage area with a top hood. Handles are provided for user control of the cart, as well as to provide an attachment area for removable side storage bags, as well as providing attachment of tools and cleaning supplies.

A wheeled carrying apparatus includes a handle frame rotatable relative to a standing frame between a first and a second position, a wheel mount pivotally connected with the standing frame, a wheel mount latch adapted to lock and unlock the wheel mount with respect to the standing frame, an actuating assembly coupling the wheel mount latch to the handle frame so that the wheel mount latch is movable to engage and disengage the wheel mount in response to a rotation of the handle frame, and a release mechanism including an operating part that is coupled to the actuating assembly via a cable assembly. The cable assembly includes a flexible part configured to stretch or loosen as the handle frame rotates between the two positions, the operating part being operable to cause the wheel mount latch to disengage from the wheel mount when the handle frame is in the first position.

A swivel caster includes a swivel assembly having a swivel plate configured to be mounted to a vehicle and defining a swivel axis. A horn depends downwardly from the swivel assembly and a wheel is wheel coupled to the horn with a wheel axle. A slide mechanism couples the horn to the swivel assembly and enables the wheel to slide in a direction generally perpendicular to the swivel axis between first and second trailing positions. The slide mechanism swivels with the horn, the wheel, and the swivel plate about the swivel axis. A swivel limiter is operatively associated with the swivel assembly and limits a swiveling range of the wheel about the swivel axis so as to activate the slide mechanism to reposition the wheel from the first trailing position to the second trailing position when a direction of travel of the vehicle changes.

The present disclosure relates to a wheel mechanism and a child carrier. The wheel mechanism includes a wheel quick-release mechanism and/or a wheel orientation mechanism. The wheel quick-release mechanism detachably installs the wheel seat onto the frame, and includes a connecting rod having an end connected with the frame and the other end provided with a snapping portion; a receiving hole arranged in the wheel seat for receiving the connecting rod; an inserting channel arranged in the wheel seat and communicated with the receiving hole; an operating member movably arranged in the inserting channel; and a spring. The wheel orientation mechanism orients a wheel seat with respect to a frame and includes an orientating portion on the frame; a receiving slot arranged in the wheel seat corresponding to the orientating portion; and an oriented-locking element interposed into the receiving slot and sliding between a released position and a locked position.

A wheeled carrying apparatus includes a handle frame rotatable relative to a standing frame between a first and a second position, a wheel mount pivotally connected with the standing frame, a wheel mount latch adapted to engage and lock the wheel mount with respect to the standing frame and to disengage and unlock the wheel mount so that it is rotatable for changing orientation of a wheel axis, a link actuator coupled to the wheel mount latch via a linking part that is movable as the handle frame rotates for causing the wheel mount latch to engage or disengage the wheel mount, and a release mechanism including a cable assembly that couples an operating part carried with the handle frame to the wheel mount latch, the operating part being operable to cause the wheel mount latch to disengage the wheel mount in the first position of the handle frame.