Importance

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Abstract

A locking device includes a lock base (20) used to provide a point to be locked, wherein the lock base includes a lock body (25), a surface of the lock body (25) being provided with a lock groove (21) recessed towards the interior of the lock body (25), the lock body (25) being internally provided with a lock tongue groove (22) and a lock tongue (24) movably mounted in the lock tongue groove (22), and the lock tongue groove (22) being in communication with the lock groove (21); a lock connecting rod (10) movably connected to the lock base (20) through the lock tongue (24) and including a rod member (11), the rod member (11) driving the lock tongue (24) to move in the lock tongue groove (22) under the action of an external force; and a lock shaft (30), comprising a shaft seat (34) and a shaft rod (31), the shaft rod (31) being perpendicularly arranged to a surface of the shaft seat (34), and the shaft rod (31) being used to be inserted into the lock groove of the lock base (20) so as to perform locking. A fixing seat and an electric vehicle comprising the locking device are disclosed. The device can fix a battery to the electric vehicle in such a way that a plurality of lock shafts distributed on a side edge of the battery are simultaneously inserted into a plurality of lock bases (20) of the electric vehicle, and can simultaneously lock the plurality of lock shafts to the lock bases in an automatic manner by means of the action of the lock connecting rod (10), thereby improving the efficiency of assembling or disassembling the battery greatly.

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First Claim