Lockable computing device with movable lever

A computing device, the computing device comprising:

• a chassis configured to hold one or more electronic devices, the chassis being insertable into a rack;
• a mounting ear coupled to the chassis;
• a lever rotatably coupled to the mounting ear, the lever being rotatable between a first position and a second position, the lever configured to engage the rack when in the first position and to disengage the rack when in the second position, the chassis being prevented from being removed from the rack when the lever is in the first position, the chassis being allowed to be removed from the rack when the lever is in the second position;
• a locking unit coupled to and positioned above the mounting ear, the locking unit transitioning from a locked state to an unlocked state in response to a user force and automatically transitioning from the unlocked state to the locked state in response to the user force being removed, the lever being secured in the first position when the locking unit is in the locked state, the lever being movable from the first position to the second position when the locking unit is in the unlocked state, the locking unit including
• a housing coupled to the mounting ear and including a window for internal accessibility,
• a locking pin having a flared head at one end, the locking pin being movable and disposed at least partially within the housing, the locking pin being in a locked position when the locking unit is in the locked state and in an unlocked position when the locking unit is in the unlocked state,
• a mounting flange extending about a periphery of the locking pin,
• a sliding member that is slidably coupled to the locking pin, the locking pin passing completely through a hole of the sliding member, the flared head extending from one end of the sliding member, the locking pin extending from an opposite end of the sliding member, the sliding member having an angled surface that contacts the flared head of the locking pin when the locking unit transitions to the unlocked state, the flared head protruding through the sliding member, the contact between the angled surface and the flared head moving the locking pin from the locked position to the unlocked position, the sliding member further having an end that is accessible to a user through the window of the housing, contact of the user with the sliding member causing the sliding member to slide toward the flared head of the locking pin, and
• a baseplate mounted with the locking pin, the sliding member being slidably fixed between the locking pin and the baseplate, the baseplate being insertable and positioned between the sliding member and a bottom surface of the housing;
• and
• a mounting pin via which the lever is rotatably coupled to the mounting ear, the mounting pin extending through a first mounting pin aperture in the lever and into a second mounting pin aperture in the mounting ear, the lever being rotatable about the mounting pin between the first position and the second position, the mounting pin having a first end that extends into the second mounting pin aperture in the mounting ear, the mounting pin further having a second end that extends into a third mounting pin aperture of the locking unit such that the lever is further rotatably coupled to the locking unit.