| CPC F16H 25/20 (2013.01) [A47B 9/20 (2013.01); A47B 2200/0051 (2013.01); A47B 2200/0057 (2013.01); F16H 2025/2031 (2013.01); F16H 2025/2037 (2013.01); F16H 2025/2084 (2013.01); F16H 2025/209 (2013.01)] | 6 Claims |
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1. A linear actuator (1), comprising:
a motor case (10), comprising a case member (11), wherein the case member (11) comprises a bottom plate (111), and a through hole (114) is defined on the bottom plate (111);
a drive mechanism (20), accommodated in the case member (11);
a transmission mechanism (30), comprising a machine core (31), a bearing (32), a base seat (33) and a fasten unit (34), wherein the machine core (31) passes through the through hole (114) and is connected to the drive mechanism (20), the base seat (33) comprises an extending plate (332), the extending plate (332) comprises a penetrated hole (333), the bearing (32) is disposed on the base seat (33) and adapted to sheathe the machine core (31), the fasten unit (34) passes through the penetrated hole (333) to be fastened with the bottom plate (111), and the fasten unit (34) comprises a head part (341); and
a protection structure (40), adapted to sheathe the fasten unit (34) and disposed between the bottom plate (111) and the head part (341);
wherein the base seat (33) further comprises a bearing cave (331), the extending plate (332) is extended from the bearing cave (331), and the bearing (32) is disposed in the bearing cave (331);
wherein the protection structure (40) comprises a first elastic pad (412) and a second elastic pad (413), the first elastic pad (412) is disposed between the extending plate (332) and the bottom plate (111), and the second elastic pad (413) is disposed between the head part (341) and the extending plate (332);
wherein the protection structure (40) further comprises a pressure-sensitive sensor (42), and the pressure-sensitive sensor (42) is disposed between the head part (341) and the second elastic pad (413).
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