| 摘要 |
Disclosed are a secure connection apparatus for a circuit board, a circuit board and a plug-and-lock industrial control frame. The secure connection apparatus for a circuit board comprises a base, a connecting block which is movably arranged on the upper part of the base and has elasticity, a special-shaped ratchet wheel which is hinged to the lower part of the base through a first hinge and has elasticity, a hook handle hinged to the rear part of the base through a second hinge, and a hook button which is movably arranged on the hook handle and has elasticity, wherein the hook handle cooperates with the base via the hook button to realize the combination with and separation from the base, and the hook handle cooperates with the special-shaped ratchet wheel to realize the rotation of the special-shaped ratchet wheel. The plug-and-lock industrial control frame using the secure connection apparatus for a circuit board and the circuit board has the advantages of convenient installation, reliable connection and good effect. |
