Discussed are solar panel systems as well as devices and methods for mounting the solar panel systems to roofs and building structures. Catch clamp, mid clamp, and optionally end clamp assemblies can be preinstalled to the solar panels at the job site before placing and securing the resulting solar panel assemblies to the building structure such as a roof. After an installer places and secures a first solar panel assembly to the building structure, they can install each subsequent solar panel assemblies by attaching the leading edge of the subsequent solar panel assembly to the trailing edge of the previous solar panel assembly using a catch and catch receiver, hook and slot, tab and slot, or similar mechanism.

Discussed are solar panel systems as well as devices and methods for mounting the solar panel systems to roofs and building structures. Catch clamp, mid clamp, and optionally end clamp assemblies can be preinstalled to the solar panels at the job site before placing and securing the resulting solar panel assemblies to the building structure such as a roof. After an installer places and secures a first solar panel assembly to the building structure, they can install each subsequent solar panel assemblies by attaching the leading edge of the subsequent solar panel assembly to the trailing edge of the previous solar panel assembly using a catch and catch receiver, hook and slot, tab and slot, or similar mechanism.

Discussed are solar panel systems as well as devices and methods for mounting the solar panel systems to roofs and building structures. Catch clamp, mid clamp, and optionally end clamp assemblies can be preinstalled to the solar panels at the job site before placing and securing the resulting solar panel assemblies to the building structure such as a roof. After an installer places and secures a first solar panel assembly to the building structure, they can install each subsequent solar panel assemblies by attaching the leading edge of the subsequent solar panel assembly to the trailing edge of the previous solar panel assembly using a catch and catch receiver, hook and slot, tab and slot, or similar mechanism.

A system for fastening a casing to a tube which, according to a first aspect of the invention, includes a claw provided with protuberances, and, according to a second aspect of the invention, comprises an incorporation of first rails on side faces of the casing, and second rails on an upper face of the casing to hook onto the protuberances. The claw can pivot with respect to the first protuberances, both to house the tube and to hook onto the second rail, as well as to surround and press against the tube, once the second rail is hooked. The fastening system allows for a faster and more ergonomic fastening without the use of tools and elements such as connecting screws and bolts.

The present application provides a profile pressing component used to combine and fix profiles with side grooves. The profile pressing component includes a first mounting block and a second mounting block. The first mounting block includes a first combining part and a first fixing part. The first combining part extends upward from one end of the first fixing part in the width direction and is suitable for being clamped into the side groove of a profile, and the first fixing part is provided with at least one first convex strip on its bottom surface. The second mounting block includes a second combining part and a second fixing part. The second combining part extends upward from one end of the second fixing part in the width direction and is suitable for being clamped into the side groove of another profile, and the second fixing part has at least one hook at the other end in the width direction. When the first mounting block and the second mounting block are combined in the width direction, the at least one hook is adapted to hook the at least one first convex strip to limit the relative movement of the first fixing part and the second fixing part in the width direction.