A handle assembly includes a hub body that extends along a central longitudinal axis that has a first end portion that includes a first set of handle adapter engagement features and a second set of handle adapter engagement features. A handle adapter includes at least one of a first set of hub engagement features for engaging the first set of handle adapter engagement features or a second set of hub engagement features for engaging the second set of handle adapter engagement features. A handle engages both the handle adapter and the hub body.

A door lock with a reinforced fireproof effect includes a lock body mounted on a door and inner and outer operating units mounted to two sides of the door, respectively. The lock body includes inner and outer chassis made of ferrous material or stainless steel having a melting point higher than 1300° C. Inner and outer fixing members coupled with the inner and outer chassis are also made of ferrous material or stainless steel. Thus, these components of the door lock are less likely to melt during a fire, reducing the spreading speed of the fire.

A door handle assembly that allows for easy removal and switching of handles. Such an arrangement may provide the flexibility to change handle orientation and interchange handles based on a user's circumstances or preferences such as when a door handle is configured as a lever having a curved shape. Further, the door handle may be configured as a door lock having a keypad access control. The face of the keypad accessible from outside the door may include auxiliary battery terminals to provide the user with easy accessibility for providing temporary power to the door lock with an auxiliary battery should the installed batteries housed within the door lock fail to provide sufficient power.

An apparatus including a chassis assembly having a housing, a spindle rotatably mounted to the housing, a spring collar rotatably mourned to the housing, a first biasing element rotationally urging the spindle toward a spindle home position, and a second biasing element rotationally urging the spring collar toward a spring collar home position. The apparatus may further include a handle mounted on the chassis such that the chassis biases the handle to a handle home position with a return torque. The handle is engaged with the spindle such that the first biasing element contributes to the return torque. In certain embodiments, the handle may further be engaged with the spring collar such that the second biasing element contributes to the return torque.

A universal adaptor for door handle, operable to be universally assembled in a polygonal assembling groove of one of multiple types of handles, so that the above-mentioned handle forms a panel-like lock handle and is locked to a panel lock, and includes a lock portion and a universal extension portion. The lock portion is formed with at least one lock hole corresponding to the panel lock. The universal extension portion is connected to the lock portion and extends along an extension direction to form a polygonal rod structure, and a catching-type fit relationship is formed between the polygonal rod structure and the polygonal assembling groove. The present disclosure can achieve the functions and effects of universally assembling in polygonal assembling grooves of handles with different appearances and thereby enabling the handles to be locked to panel locks.

A universal adaptor for door handle, operable to be universally assembled in a polygonal assembling groove of one of multiple types of handles, so that the above-mentioned handle forms a panel-like lock handle and is locked to a panel lock, and includes a lock portion and a universal extension portion. The lock portion is formed with at least one lock hole corresponding to the panel lock. The universal extension portion is connected to the lock portion and extends along an extension direction to form a polygonal rod structure, and a catching-type fit relationship is formed between the polygonal rod structure and the polygonal assembling groove. The present disclosure can achieve the functions and effects of universally assembling in polygonal assembling grooves of handles with different appearances and thereby enabling the handles to be locked to panel locks.

A handle assembly and a household appliance having same. The handle assembly comprises a mounting assembly (10) and a handle (20), the mounting assembly (10) comprises a pre-mounted piece (111) and retractable elements (112), handle grooves (1111) are provided on the pre-mounted piece (111), limiting bosses (21) are provided on the handle (20), and a limiting groove (213) is provided on each limiting boss. The limiting bosses (21) fit with the handle grooves (1111) to realize the mounting of the handle (20), and the retractable elements (112) can extend into the limiting grooves (213) to lock the handle (20), ensuring the high reliability of the mounting of the handle, so that a user can mount the handle on a household appliance without other specialized tools, improving the user experience, and achieving simple and reliable handle mounting.

An exemplary knob assembly includes a knob having a circumferential channel, and a deformable ring seated in the circumferential channel. The ring is normally rotatable relative to the knob such that rotation of the ring does not cause a corresponding rotation of the knob. When gripped with a sufficient gripping force, the ring frictionally engages and rotationally couples with the knob, thereby permitting transmission of torque between the ring and the knob. In certain embodiments, the knob assembly may include a detent mechanism operable to selectively couple the ring and the knob. In certain embodiments, the ring may include protrusions operable to engage pockets in the knob to provide for rotational coupling.

An exemplary knob assembly includes a knob having a circumferential channel, and a deformable ring seated in the circumferential channel. The ring is normally rotatable relative to the knob such that rotation of the ring does not cause a corresponding rotation of the knob. When gripped with a sufficient gripping force, the ring frictionally engages and rotationally couples with the knob, thereby permitting transmission of torque between the ring and the knob. In certain embodiments, the knob assembly may include a detent mechanism operable to selectively couple the ring and the knob. In certain embodiments, the ring may include protrusions operable to engage pockets in the knob to provide for rotational coupling.

A locking device for a barn door mounted in the wall adjacent a side edge of the door when in the closed position. The lock includes an outer cylinder that passes through the wall. The ends of the outer cylinder are mounted to each side of the wall. An inner cylinder is provided that is axially and slidably disposed within the outer cylinder and has a length greater than the length of the outer cylinder. When so positioned, one end of the inner cylinder can extend from the surface of the wall to prevent the barn from sliding to an open position by contacting the side edge of the barn door. When slid in the opposite direction the inner cylinder disengages from contacting the side edge of the barn door to enable the barn door to slide to the open position. Optionally, a locking mechanism is provided to lock the barn door in the closed position.