2results about How to "Avoid self-locking" patented technology

The application discloses a handle structure with a spiral curved surface lock, which is used for locking a plug and a socket of a fluid connector, a handle accessory of the handle structure is connected to the plug through a shaft pin, the handle accessory comprises a locking part, a spiral curved surface for guiding a locking column on the socket is arranged on the locking part, and a locking groove for fixing the locking column is arranged on the locking part, the locking groove is connected with the spiral curved surface, a convex part is arranged at a position where the spiral curved surface transitions to the locking groove, and the locking column is connected to the locking part from the bottom to the top of the handle structure; the force applying mode from the bottom to the top of the application overcomes the self-locking in the connecting process of the existing structure, thereby overcoming the defect that the connection is stuck; the structure that the inflection point is added in the locking groove ensures the locking, prevents the self-unlocking phenomenon from occurring in the use process, and overcomes the defect that the locking shakes through the limiting structure.

An operating mechanism for a circuit breaker, belonging to the field of switchgear technology, includes a bracket, a trip latch, and a locking latch. A handle lever is oscillatingly mounted on the bracket. The trip latch and locking latch are rotatably mounted on the bracket, and they engage in a locking engagement. The trip latch has a locking engagement portion, characterized in that the locking engagement portion includes a straight engagement portion and a curved engagement portion. The length of the curved engagement portion is greater than or equal to 50% of the length of the locking engagement portion. When the circuit breaker is in the closed or open position, the engagement position of the trip latch and the locking latch is located on the straight engagement portion. When the circuit breaker is tripped, the locking latch rotates, and the engagement position of the trip latch and the locking latch moves from the straight engagement portion to the curved engagement portion until it disengages from the curved engagement portion, completing the tripping action. Advantages: It can prevent the circuit breaker from self-locking when tripping in the open position, ensuring the reliability of the circuit breaker's closing and opening tripping functions, and improving the stability of the operating mechanism.