Abstract: An exemplary joint mechanism (100) includes a pivot shaft (10), a joint (20), a rotary arm (30), and two bearings (50). The pivot shaft (10) is non-rotatable relative to the joint (20). The joint (20) is received in the rotary arm (30). The rotary arm (30) is rotatable relative to the joint (20). The two bearings (50) are fixed to an inner surface of the rotary arm (30). Each bearing (50) includes a concave inner surface, and the concave inner surface is engaged with a curved outer surface of the joint (20).

Abstract: An exemplary lid lock mechanism (20) includes a main body (22) and a lid (24). Two resilient hooks (222) and two resisting portions (224) are formed on an inner surface of the main body. The lid includes a lid cap (242). Two hooking portions (246) and two extending pieces (248) are formed on a surface (244) of the lid cap. The hooking portions are engaged with the resilient hooks of the main body when the lid is connected to the main body. To detach the lid from the main body, the hooks of the hooking portions are disengaged from the resilient hooks of the main body.

Abstract: An exemplary rotatable positioning structure includes a first element and a second element. The first element includes a positioning track portion and defining a hole therein. The second element includes a pivot shaft engaging in the hole. The pivot shaft includes a through hole defined therethrough, a restriction portion and a positioning portion. The first element is restricted by the restriction portion of the pivot shaft. The positioning portion and the positioning track portion are capable of making the first element and the second element maintain a fixed position after relatively rotation therebetween.

Abstract: An exemplary latching mechanism (20) includes a base (22) having two resilient claps (224), a detachable portion (24) having two resilient clasps (244) for engaging with the hooking portions of the base, and an unlatching element (25). The unlatching element defines two engaging slots (258) and is disposed between the base and the detachable portion. The resilient clasps of the detachable portion engage with the hooking portions of the base when the detachable portion is pressed to be latched to the base. The resilient clasps engage in the engaging slots of the unlatching element when the detachable portion is pressed to be detached from the base. Then the detachable portion and the unlatching element together move away from the base. The engagement of the detachable portion and unlatching element makes the at least one resilient clasp deforms and thus disengages from the at least one hooking portion of the base.

Abstract: An exemplary latching mechanism (20) includes a base (22), a detachable portion (24), a rotatable wheel (25), and a resilient member (28). The base has two resilient hooks (224). The detachable portion has two clasping portion (244) for engaging with the resilient hooks. The rotatable wheel has a plurality of hook openers (256) and is rotatable between two states forced by the detachable portion. The resilient member is disposed between the base and detachable portion for providing elastic force. The at least one clasping portion of the detachable portion engages with the at least one resilient hook of the base and the rotatable wheel is at a second state. The rotatable wheel is rotated to a first state and the at least one resilient hook are pushed to deform by at least one of the hook openers of the rotatable wheel.

Abstract: An exemplary rotatable joint (100) used for a mechanical device includes a socket (10), a rotatable arm (20), a supporting shaft (13), a fastening member (15), an adjusting member (16), and a resilient module (18). A pivot hole (212) is defined in the rotatable arm. The supporting shaft includes a first shaft portion (130) and a second shaft portion (132). A threaded hole (131) is defined in the first shaft portion and the first shaft portion extends through the pivot hole. The second shaft portion is fixed to the socket. The fastening member includes a threaded portion (152) for engaging in the threaded hole of the supporting shaft. The adjusting member is disposed at the threaded portion of the fastening member. The resilient module is disposed between the rotatable arm and the adjusting member for providing an axial resilient force. The axial resilient force is fine tuned by moving the adjusting member.

Abstract: An exemplary rotatable joint (100) includes a socket (10), a rotatable arm (20), and a connecting device (30) configured for being mounted in the socket. The connecting device includes a sub-socket (31), two elastic sleeves (33), and two pivot shafts (35) fixed to the socket. The sub-socket includes a first half (311) and a second half (312). A pivot hole (315, 316) is defined in each of the first half and the second half for engaging with an outer surface (331) of one of the elastic sleeves. An outer surface (351) of each of the pivot shafts engages with an inner surface (332) of one of the elastic sleeves. A through hole (317) is defined in the sub-socket for rotatably engaging with the rotatable arm. Each of the elastic sleeves abuts the rotatable arm.

Abstract: An exemplary rotatable positioning structure includes a first element and a second element. The first element includes a positioning track portion and defining a hole therein. The second element includes a pivot shaft engaging in the hole. The pivot shaft inlcudes a through hole defined therethrough, a restriction portion and a positioning portion. The first element is restricted by the restriction portion of the pivot shaft. The positioning portion and the positioning track portion are capable of making the first element and the second element maintain a fixed position after relatively rotation therebetween.

Abstract: An exemplary latching mechanism (20) includes a base (22), a detachable portion (24), a rotatable wheel (25), and a resilient member (28). The base has two resilient hooks (224). The detachable portion has two clasping portion (244) for engaging with the resilient hooks. The rotatable wheel has a plurality of hook openers (256) and is rotatable between two states forced by the detachable portion. The resilient member is disposed between the base and detachable portion for providing elastic force. The at least one clasping portion of the detachable portion engages with the at least one resilient hook of the base and the rotatable wheel is at a second state. The rotatable wheel is rotated to a first state and the at least one resilient hook are pushed to deform by at least one of the hook openers of the rotatable wheel.

Abstract: An exemplary joint mechanism (100) includes a pivot shaft (10), a joint (20), a rotary arm (30), and two bearings (50). The pivot shaft (10) is non-rotatable relative to the joint (20). The joint (20) is received in the rotary arm (30). The rotary arm (30) is rotatable relative to the joint (20). The two bearings (50) are fixed to an inner surface of the rotary arm (30). Each bearing (50) includes a concave inner surface, and the concave inner surface is engaged with a curved outer surface of the joint (20).

Abstract: An exemplary latching mechanism (20) includes a base (22) having two resilient claps (224), a detachable portion (24) having two resilient clasps (244) for engaging with the hooking portions of the base, and an unlatching element (25). The unlatching element defines two engaging slots (258) and is disposed between the base and the detachable portion. The resilient clasps of the detachable portion engage with the hooking portions of the base when the detachable portion is pressed to be latched to the base. The resilient clasps engage in the engaging slots of the unlatching element when the detachable portion is pressed to be detached from the base. Then the detachable portion and the unlatching element together move away from the base. The engagement of the detachable portion and unlatching element makes the at least one resilient clasp deforms and thus disengages from the at least one hooking portion of the base.

Abstract: An exemplary lid lock mechanism (20) includes a main body (22) and a lid (24). Two resilient hooks (222) and two resisting portions (224) are formed on an inner surface of the main body. The lid includes a lid cap (242). Two hooking portions (246) and two extending pieces (248) are formed on a surface (244) of the lid cap. The hooking portions are engaged with the resilient hooks of the main body when the lid is connected to the main body. To detach the lid from the main body, the hooks of the hooking portions are disengaged from the resilient hooks of the main body.

Abstract: An exemplary rotatable joint (100) used for a mechanical device includes a socket (10), a rotatable arm (20), a supporting shaft (13), a fastening member (15), an adjusting member (16), and a resilient module (18). A pivot hole (212) is defined in the rotatable arm. The supporting shaft includes a first shaft portion (130) and a second shaft portion (132). A threaded hole (131) is defined in the first shaft portion and the first shaft portion extends through the pivot hole. The second shaft portion is fixed to the socket. The fastening member includes a threaded portion (152) for engaging in the threaded hole of the supporting shaft. The adjusting member is disposed at the threaded portion of the fastening member. The resilient module is disposed between the rotatable arm and the adjusting member for providing an axial resilient force. The axial resilient force is fine tuned by moving the adjusting member.

Abstract: An exemplary rotatable joint (100) includes a socket (10), a rotatable arm (20), and a connecting device (30) configured for being mounted in the socket. The connecting device includes a sub-socket (31), two elastic sleeves (33), and two pivot shafts (35) fixed to the socket. The sub-socket includes a first half (311) and a second half (312). A pivot hole (315, 316) is defined in each of the first half and the second half for engaging with an outer surface (331) of one of the elastic sleeves. An outer surface (351) of each of the pivot shafts engages with an inner surface (332) of one of the elastic sleeves. A through hole (317) is defined in the sub-socket for rotatably engaging with the rotatable arm. Each of the elastic sleeves abuts the rotatable arm.