A buckle assembly with a disengagement prevention device and a method for using the same is disclosed. The buckle assembly has a first buckle member having a first strap holding structure configured to adjustably affix the first buckle member to a first strap segment. A second buckle member is configured to couple with the first buckle member, the second buckle member having a second strap holding structure configured to affix the second buckle member to a second strap segment. A disengagement prevention device is configured for engagement with the first and second buckle members to maintain the first and second buckle members in a coupled state under conditions where the first and second buckle members are not properly engaged or the engagement between the first and second buckle members is accidentally released.

First and second buckle members can be secured in a buckled configuration and can be separated in an unbuckled configuration by moving the buckle member(s) along an extraction direction. In the buckled configuration a row of one or more teeth of the first buckle member and a row of one or more teeth of the second buckle member can cooperate in responding to a tension force pulling the first buckle member away from the second buckle member along the extraction direction by opposing movement of the first buckle member away from the second buckle member along the extraction direction, and using the tension force to guide the first buckle member and the second buckle member laterally toward a centered position. A buckle can include this centering feature, a spring ejection mechanism, an obstruction to inhibit engagement with less than a predetermined number of teeth rows, and/or other features.

A buoyancy control device for scuba diving comprising at least two shoulder straps, each shoulder strap having an upper portion and a lower portion joined by a closing buckle comprising a male buckle element and a female buckle element, which has a first connection means for connecting to the upper portion of the shoulder strap and a second connection means for connecting to the male buckle element, wherein the female buckle element comprises a first part that has the first connection means, a second part that has the second connection means, and an articulated connection pin for connecting the first part to the second part.

Locking device having first and second combined connection carriers for establishing a detachable connection. A rotation element is rotatably attached at the first connection carrier and is provided in an inner region thereof. The inner region is centered with respect to a center axis and has a full radius. Elastic blocking heads are attached at the first connection carrier at the inner region, and are movable from a blocking to a release position. The rotation element includes segments extending up to the full radius and segments extending at a maximum up to a smaller inner radius. The segments extending up to the full radius move blocking heads into the release position and the segments extending up to the inner radius leave blocking heads in the blocking position. Key tongues move bordering ones of the blocking heads into the release position and allow rotation of the rotation element.

An ambidextrous, adjustable cross-body strap comprising a plurality of variably sized pockets, a buckle and universal interlocking keyring system for added user security. The cross-body strap can be worn under or over a shirt or jacket. In one embodiment, it is water resistant or waterproof. In one embodiment, the cross-body strap has interchangeable clasps and hooks that are stored in one of the plurality of pockets built into the strap. The interchangeable clasps hook and carabiners can be used separately or in combination with the universal interlocking rings to self-attach or alternatively attach to any messenger bag, gym bag tactical clips, such as a keyring holder, straps with snaps or briefcase.

A magnetic buckle assembly includes a first buckle component, a second buckle component, a switch, an operating component, a first magnetic component, a second magnetic component and a latch. The switch is movably disposed on the second buckle component. The operating component is linked to the switch. The first magnetic component is disposed on the first buckle component. The second magnetic component is disposed on the switch. The latch is movably disposed on the second buckle component and for engaging with the first buckle component to prevent separation of the first buckle component and the second buckle component. The operating component drives the switch to move to change a direction of a magnetic force of the second magnetic component acting on the first magnetic component when the operating component is operated to disengage the latch from the first buckle component.

An inserting buckle includes an insertion piece, a buckle body, an ejection member, a first pressing buckle and a second pressing buckle. The second pressing buckle movably disposed in the cavity and moved toward or away from the first pressing buckle; the second pressing buckle is driven back by a second elastic member; a buckle hole is formed between the first pressing buckle and the second pressing buckle; the connection portion is inserted into the cavity and is locked in the buckle hole; the first pressing buckle and the second pressing buckle are simultaneously pressed to enlarge an width of the buckle hole, the connection portion is separated from the buckle hole, the ejection member ejects the connection portion out of the cavity. The operation of separating the buckle body and the insertion piece only needs to simultaneously press the first button and the second button with one hand.

A connector is described having a female part defining a recess, a male part including a section receivable within the recess of the female part, and a lock pin insertable into an opening provided in the female part. The lock pin is engageable with the section of the male part when the male part is located within the recess to retain the male part within the recess. The female part is provided, around a periphery of the opening, with a stabilizing recess. The lock pin includes a feature receivable within the stabilizing recess, engageable with a base of the stabilizing recess to limit the distance by which the lock pin can be inserted into the opening.

A buckle-type closing device including a first component and a second component that are associable with one another in a releasable manner, the first component including a chamber in which a magnet is housed and a support element, and the second component including a ferromagnetic locking element that is adapted to interact, in operation, with the magnet, the locking element being movable between a first released position and a second locking position in which the locking element is attracted by the magnet against the support element.

The present invention provides a double-sided usable belt buckle, a belt having the double-sided usable belt buckle can be available on both sides. The two ends of the pin shaft can be connected with the buckle and the tail clamp by matching the clamping block arranged on the pin shaft with the clamping groove. The clamping block extends into the pin shaft mounting hole firstly, and after the connecting convex block is clamped into the connecting groove, the clamping block can be clamped into the clamping groove. When it is needed to use the other side of the belt having the double-sided usable belt buckle, simply pressing the pin shaft to make the clamping block slide out of the clamping groove so as to separate the tail clamp from the buckle, and then replace the tail clamp and connect it with the buckle again.