Fastening Device and Fastening Method

A fastening device comprising:

• a push block;
• a housing;
• and
• a biasing member positioned between the push block and the housing in a longitudinal direction, said biasing member being deformable to provide a fastening force;
• a locking member sheathed in the housing and having a bent structure so as to have elasticity in a transverse direction, and having tooth-like structures transversely protruding from two sides of the housing in opposite directions;
• wherein said tooth-like structures are retractable into the housing when the locking member is pressed towards a center in the transverse direction.

A distribution box control panel assembly comprising:

• a fastening device comprising:
• a push block;
• a housing;
• and
• a biasing member positioned between the push block and the housing in a longitudinal direction, said biasing member being deformable to provide a fastening force;
• a locking member sheathed in the housing and having a bent structure so as to have elasticity in a transverse direction, and having tooth-like structures transversely protruding from two sides of the housing in opposite directions;
• and further comprising:
• a distribution box control panel having a fastening device installation portion for the fastening device, the fastening device installation portion being configured as a cut-out formed in a side wall of the distribution box control panel, two sides of the fastening device installation portion being formed with a tooth-like structure, and said tooth-like structures being configured to engage with the tooth-like structures of the locking member of the fastening device;
• wherein said tooth-like structures are retractable into the housing when the locking member is pressed towards a center in the transverse direction.

A method for fastening a distribution box control panel to a distribution box via a fastening device, the method comprising:

• pushing the fastening device into a fastening device installation portion of the distribution box control panel while pressing a locking member, such that a push block bears against the distribution box;
• further pushing the fastening device towards the distribution box to cause a biasing member to deform;
• and
• loosening the locking member to engage tooth-like structures of the locking member with tooth-like structures on the distribution box control panel.