A clamping device includes a body, a clamp arm and a drive mechanism that includes a displacement body displaced linearly, wherein the clamp arm is rotated based on the displacement of the displacement body. The displacement body includes a guide surface for guiding the rotation of the clamp arm, and also for controlling the rotation of the clamp arm while the clamp arm is in a clamping state. The clamping device further includes a push mechanism disposed at a position facing a lever arm and elastically pushing the displacement body toward the lever arm.

A woodworking clamp having a connector is provided. Two ends of the connector are connected with two clamping members to constitute the woodworking clamp. The connector includes a housing, a receiving tube, a U-shaped buckle, a spring, and a button. When the end of a bar of the clamping member is fully inserted in a notch of the U-shaped buckle, the spring provides a force to return the U-shaped buckle to its original position to complete the locking. When the button is pressed down, that is, a hook of the U-shaped buckle is pressed down, a positioning pin of the bar is released from the receiving tube and the U-shaped buckle so that the bar of the clamping member can be pulled out from the connector.

A precision clamping assembly has a body, two clamping arms, and a drive device. The body has a first direction, a second direction, a chamber formed in the body, and an opening formed through an outer side of the body along the second direction and communicating with the chamber. The clamping arms are pivotally and movably connected to the body, and each clamping arm is disposed in the chamber and has a pivot end and a clamping end extended out of the body via the opening. The clamping ends are selectively moved toward or away from each other along the second direction and selectively moved same or opposite from each other along a third direction. The drive device is connected to the body and the two clamping arms, and has two driving sets disposed in the body and respectively connected to the two clamping arms.

A clamping and locking device that uses two main parts. The two parts are connected by an axle, which acts as a fulcrum. The assembled clamp has jaws that meet together on one end of the assembled parts. There is a multi-radius latching system on the inside of the handle arms located on the other side of the axle. The handle arms may be straight or curved. The ends of the handle arms can be straight, or have hooks, ring-holes, hand-grips, or an assortment of other useful end-of-handle designs.

A clamp contains: a first clamping assembly, a second clamping assembly, and a guide shaft. The first clamping assembly includes a base, a first clamper, a first connection member, and a first buffer. The base has a grip, an operation lever, and a release lever. The base further includes a release structure driven by the release lever to remove the base from the guide shaft. The second clamping assembly includes a second clamper, a second connection member, and a second buffer. The first buffer accommodates the guide shaft, and the second buffer is fitted on and is rotated with respect to an outer wall of the second connection member. The second clamper is fitted on the second buffer and the second connection member, the second clamper is rotatable relative to the second connection member, and the second clamper and the second buffer are connected with the second connection member.

An expandable fixture contains: a first body, a second body, and an actuation rod. The first body includes a first clamp and a grip. The second body includes a connection structure, and the second body includes a second clamp. The first body further includes a drive mechanism configured to pull the actuation rod to drive the first clamp and the second clamp to clamp, a press extension configured to control the drive mechanism, and a first positioning structure vertically corresponding to the actuation rod. The second body includes a second positioning structure rotatably connected on a peripheral side thereof, and each of the first positioning structure and the second positioning structure is a respective one of two T-shaped posts slidably mounted on a respective one of two T-shaped slide rails of a work table.

An envelope liner template having a first panel having a pattern inscribed therein and a second panel. The second panel is positioned below the first template and attached by a fastening mechanism. The fastening mechanism is adapted to secure a decorative sheet in place between the first panel and the second panel when a cutting implement cuts through the pattern and the sheet against the second template panel to form an envelope liner.

A method of forming a module clamp of a photovoltaic module support structure may include cutting a folding pattern into a sheet of metal. The folding pattern may include one or more width-wise slits relative to the sheet of metal, one or more length-wise slits relative to the sheet of metal, and a hole. The method may include stamping one or more first features onto the sheet of metal to form a stamped sheet and folding the stamped sheet along the one or more width-wise slits and the one or more length-wise slits to form a preliminary module clamp. The method may include stamping one or more second features onto the preliminary module clamp to form the module clamp.

A method of forming a module clamp of a photovoltaic module support structure may include cutting a folding pattern into a sheet of metal. The folding pattern may include one or more width-wise slits relative to the sheet of metal, one or more length-wise slits relative to the sheet of metal, and a hole. The method may include stamping one or more first features onto the sheet of metal to form a stamped sheet and folding the stamped sheet along the one or more width-wise slits and the one or more length-wise slits to form a preliminary module clamp. The method may include stamping one or more second features onto the preliminary module clamp to form the module clamp.

The Trapdoor Clamp is the only product of its kind that allows individuals to safely place tools onto a highly adjustable platform to improve functionality of modern aerial lifts. The Trapdoor Clamp is uniquely designed with durable materials like rubber and metal to withstand force and ensure sustainability during operation. The clamp includes a channel having three sides defining open ends thereto, a trapdoor configured to create an open ended box with the three sided channel, a hinge configured to lengthwise join the trapdoor with the three sided channel, a trapdoor extension from the trapdoor, a stationary extension from the three sided channel configured to be in an opposing relation with the stationary extension and a fastener configured to put the trapdoor extension and the stationary extension in a compression.