The present disclosure discloses a watch strap buckle with a hidden locking device. The watch strap buckle includes a U-shaped snap ring; a rotating shaft is arranged at an open end of the U-shaped snap ring; one end of a buckle tongue is mounted on the rotating shaft, and the other end of the buckle tongue can be inserted into a watch strap hole; first limiting holes for the spring bolt to extend and retract are formed in left and right side surfaces of the box body; second limiting holes for the spring bolts to extend and retract are correspondingly formed in corresponding positions of left and right supports of the snap ring; and the watch strap buckle further includes an independent retraction actuation rod. The watch strap buckle is stable, reliable, convenient and practical.

A jewelry clasp is provided that comprises a key, a casing, and a locking mechanism. The casing comprises an external body with an internal cavity having an opening for receiving the key and another opening into which the locking mechanism is partially disposed. The locking mechanism comprises a lever and a spring. The lever has a locking end configured to engage the key in a fixed position relative to the casing, and a pressing end for disengaging the lever from the key. The spring provides tension to the lever to facilitate engagement of the key.

A necklace keeper or clasp for securing a jewelry item and for receiving one or more charms. The clasp includes a support member constructed of a support ring that extends less than a full circle so as to define a support ring gap, and a top head piece that extends upwardly from the support ring. A sliding lock pad engages with the top head piece and is normally biased to an extended position. A guide ring is providing having a channel for receiving a support ring and extending less than a full circle so as define a guide ring gap. The sliding lock pad has a lock position in which it engages the support ring to inhibit relative rotation between the support ring and the guide ring; and has a release position in which there is relative rotation between the support ring and the guide ring so that the respective supporting ring gap and guide ring gap each align.

A clasp for a jewelry system has two arms and a sleeve that can slide to a position covering at least portions of both arms. In this position, the sleeve urges the clasp from an un-locked state towards a locked state.

The present disclosure provides an apparatus for arranging jewelry. The apparatus may comprise a lock body with a first surface and a second surface. The second surface may comprise a first insertion point and a second insertion point. The apparatus may further comprise a receiving unit disposed on the first surface of the lock body. The receiving unit may comprise a through hole configured to receive an elongated material. The elongated material may be insertable through the through hole. The apparatus may further comprise a movable closure mechanism mechanically coupled to the lock body. The movable closure mechanism may comprise a first end that is insertable into the lock body through the first insertion point. The movable closure mechanism may comprise a second end that is configured to move into or out of the lock body through the second insertion point.

A clasp for a jewelry system has two arms and a sleeve that can slide to a position covering at least portions of both arms. In this position, the sleeve urges the clasp from an un-locked state towards a locked state.

A jewelry clasp is provided that includes a key, a casing, and a locking mechanism. The casing includes an external body with an internal cavity having an opening for receiving the key and another opening into which the locking mechanism is partially disposed. The locking mechanism includes a lever and a spring. The lever has a locking end configured to engage the key in a fixed position relative to the casing, and a pressing end for disengaging the lever from the key. The spring provides tension to the lever to facilitate engagement of the key.

The present disclosure discloses a watch strap buckle with a hidden locking device. The watch strap buckle includes a U-shaped snap ring; a rotating shaft is arranged at an open end of the U-shaped snap ring; one end of a buckle tongue is mounted on the rotating shaft, and the other end of the buckle tongue can be inserted into a watch strap hole; first limiting holes for the spring bolt to extend and retract are formed in left and right side surfaces of the box body; second limiting holes for the spring bolts to extend and retract are correspondingly formed in corresponding positions of left and right supports of the snap ring; and the watch strap buckle further includes an independent retraction actuation rod. The watch strap buckle is stable, reliable, convenient and practical.