A sensor device includes a multi-part retainable shell, including an exterior outward facing wall and an interior wall shaped in accordance with a mounting element about which the shell is to be secured. The apparatus includes one or more processors provided to the hollow interior and one or more heat sinks provided on the outer wall, capable of carrying heat away from the hollow interior. The apparatus also includes a plurality of sensors provided to the outer wall to create a sensor field-of-view in a direction facing outward from the outer wall, the sensors each in communication with a processor. The parts of the shell are securable to each other in a manner that causes friction inducing material provided to the inner wall to substantially contact a mounting pole with sufficient force to prevent vertical slippage of the apparatus when the parts are secured to each other.

A quick releasing device includes a housing, a first detent structure, a second detent structure, a first elastic member and a second elastic member. The housing has a through hole and two openings located on two sides of the housing, respectively. The first detent structure includes a first engaging portion and a first abutting portion. The first abutting portion is connected to the first engaging portion. The second detent structure includes a second engaging portion and a second abutting portion. The second engaging portion forms an engaging space with the first engaging portion. The engaging space is corresponding to the through hole. The second abutting portion is connected to the second engaging portion. The first elastic member is telescopically connected between the first engaging portion and the second abutting portion. The second elastic member is telescopically connected between the second engaging portion and the first abutting portion.

A device for securing threaded rod relative to concrete and plywood forms is provided. The device can include a housing with a securement portion and a plurality of plungers to engage with the threaded rod. The securement portion can be slidably received in a base configured to be seated on a setting structure. Fasteners can secure the device to the setting structure. A tapered portion of the housing can engage the plungers to secure a threaded rod.

A removable fastener for securing a first stud to a second stud each stud having an aperture with lateral and bottom edges, includes a joining member with a first end and second end having first and second notches sized to admit lateral edges made adjacent by placing the studs back-to-back. Fastener includes a locking member that has a stud end configured to rest on the bottom edges of the apertures and a fastener end configured to attach to the joining member, holding the joining member in position within the apertures when the joining member is engaged within the apertures; the fastener end may include a clip.

A removable fastener for securing a first stud to a second stud each stud having an aperture with lateral and bottom edges, includes a joining member with a first end and second end having first and second notches sized to admit lateral edges made adjacent by placing the studs back-to-back. Fastener includes a locking member that has a stud end configured to rest on the bottom edges of the apertures and a fastener end configured to attach to the joining member, holding the joining member in position within the apertures when the joining member is engaged within the apertures; the fastener end may include a clip.

Disclosed is an arc-shaped adjustment lock, including: a base, an adjustment component, and a pressing lock assembly. The base is connected to a first LED cabinet. The base has a first arc-shaped portion. The adjustment component is connected to a second LED cabinet. The adjustment component has a second arc-shaped portion fitted with the first arc-shaped portion. The first arc-shaped portion and the second arc-shaped portion are slidingly matching with two elastic beads along an arc through a staggered double V-shaped groove group. The first arc-shaped portion and the second arc-shaped portion are locked through the pressing lock assembly after sliding along the arc.

Disclosed is an arc-shaped adjustment lock, including: a base, an adjustment component, and a pressing lock assembly. The base is connected to a first LED cabinet. The base has a first arc-shaped portion. The adjustment component is connected to a second LED cabinet. The adjustment component has a second arc-shaped portion fitted with the first arc-shaped portion. The first arc-shaped portion and the second arc-shaped portion are slidingly matching with two elastic beads along an arc through a staggered double V-shaped groove group. The first arc-shaped portion and the second arc-shaped portion are locked through the pressing lock assembly after sliding along the arc.

A latch system and method are configured to adjustably secure a first component to a second component. The latch system includes a mounting base. A slide plate is moveably coupled to the mounting base. The slide plate is configured to be slidably adjusted relative to the mounting base. A housing is secured to the slide plate. The housing includes an arm channel configured to receive a latch arm.

A latch system and method are configured to adjustably secure a first component to a second component. The latch system includes a mounting base. A slide plate is moveably coupled to the mounting base. The slide plate is configured to be slidably adjusted relative to the mounting base. A housing is secured to the slide plate. The housing includes an arm channel configured to receive a latch arm.

A quick release and reconnectable structure to allow additional movement beyond the limit of a powered arm providing assistance in the opening of a cover of an enclosure includes a support base, a connector, and a lock. The connector is slidably arranged on the support base and can be separated from the support base. The lock comprises a locking body and a clamping shaft. The locking body is positioned on the support base. The clamping shaft is slidably positioned on the locking body. A holding hole is defined in the connector. The sliding direction of the clamping shaft intersects with the sliding direction of the connector along the support base, and the clamping shaft can be inserted into or withdrawn from the holding hole.