Abstract: A lock mechanism includes a chain component and a lock connector component. The chain component has a head portion at one end. The lock connector component has a button portion, an accommodating space, and an opening disposed on a side adjacent to the button portion, wherein the opening space connects to the accommodating space. When the button portion is operated in a pressed state, the button portion is configured to block the head portion from entering or exiting the accommodating space via the opening. When the button portion is operated in a depressed state, the button portion is configured to allow the head portion to enter or exit the accommodating space via the opening.

Abstract: A connector device includes a connector component and a housing body. The connector component has a connector head. The housing body includes a first body portion and a second body portion. The first body portion has an accommodating space for the connector head. The second body portion is coupled to the first body portion and is rotatably movable with respect to the first body portion, wherein the second body portion has a first position and a second position. When the second body portion rotates to the first position, access in and out of the accommodating space is allowed for the connector head. When the second body portion rotates to the second position, the second body portion blocks the connector head access into or out of the accommodating space.

Abstract: A modular accessory apparatus includes a body component and a housing component. The body component has a first end and a second end, wherein the body component has a curvature such that a cap forms between the first end and the second end along the direction of extension of the curvature, and the first end has a connector. The housing component modularly couples to the connector. The housing component has a housing body, a coupler component, and a gateway block. The housing body has an opening, and the coupler component is disposed in the housing body. The gateway block is disposed in the opening, wherein the gateway block has a through-hole corresponding to the coupler component. The coupler component receives the connector via the through-hole, and the through-hole of the gateway block limits the displacement movement of the connector along a coplanar direction to the direction through the through-hole.

Abstract: A modular accessory apparatus includes a body component and a housing component. The body component has a first end and a second end, wherein the body component has a curvature such that a cap forms between the first end and the second end along the direction of extension of the curvature, and the first end has a connector. The housing component modularly couples to the connector. The housing component has a housing body, a coupler component, and a gateway block. The housing body has an opening, and the coupler component is disposed in the housing body. The gateway block is disposed in the opening, wherein the gateway block has a through-hole corresponding to the coupler component. The coupler component receives the connector via the through-hole, and the through-hole of the gateway block limits the displacement movement of the connector along a coplanar direction to the direction through the through-hole.

Abstract: A connector device includes a connector component and a housing body. The connector component has a connector head. The housing body includes a first body portion and a second body portion. The first body portion has an accommodating space for the connector head. The second body portion is coupled to the first body portion and is rotatably movable with respect to the first body portion, wherein the second body portion has a first position and a second position. When the second body portion rotates to the first position, access in and out of the accommodating space is allowed for the connector head. When the second body portion rotates to the second position, the second body portion blocks the connector head access into or out of the accommodating space.

Abstract: A lock mechanism includes a chain component and a lock connector component. The chain component has a head portion at one end. The lock connector component has a button portion, an accommodating space, and an opening disposed on a side adjacent to the button portion, wherein the opening space connects to the accommodating space. When the button portion is operated in a pressed state, the button portion is configured to block the head portion from entering or exiting the accommodating space via the opening. When the button portion is operated in a depressed state, the button portion is configured to allow the head portion to enter or exit the accommodating space via the opening.