A clamping device has an actuator that moves linearly and is actuated by a drive. A pivoting clamping element is operatively connected, via a toggle lever mechanism, with the actuator. The toggle lever mechanism includes a drive-side adapter and a hand lever-side adapter. The drive side adapter and hand lever side adapter can be adjusted relative to one another to define an opening angle of the clamping element. One of the adapters has a profiled bar extending in a direction of actuation. The other adapter has an insertion region to accommodate the bar. A fixing element is provided in one of the adaptors to define the location of the adapters relative to one another. The fixing element can be clamped against the profiled bar and also against an insertion region.

Disclosed herein is an integrated bonding mid clamp device for solar panel mounting and grounding, as well as a related system and method. The integrated bonding mid clamp includes a deformable toothed washer for breaking an anodized layer of a solar panel frame. The deformable toothed washer is capable of deforming to avoid obstructing proper contact between the mid clamp and the solar panel frame.

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 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 fastening system includes an anchoring structure defining a threaded bore. A stud or insert is threaded into the threaded bore. A lockring is fixed to the stud or insert to prevent relative rotation of the stud or insert and lockring. The lockring includes a key extending radially outward from the stud or insert. The key of the lockring is seated in a keyway defined in the anchoring structure to prevent relative rotation of the stud or insert and the anchoring structure. There can be multiple keys extending radially from the lockring and multiple corresponding keyway defined in the anchoring structure, wherein each key is engaged in a corresponding keyway.

A fastening system includes an anchoring structure defining a threaded bore. A stud or insert is threaded into the threaded bore. A lockring is fixed to the stud or insert to prevent relative rotation of the stud or insert and lockring. The lockring includes a key extending radially outward from the stud or insert. The key of the lockring is seated in a keyway defined in the anchoring structure to prevent relative rotation of the stud or insert and the anchoring structure. There can be multiple keys extending radially from the lockring and multiple corresponding keyway defined in the anchoring structure, wherein each key is engaged in a corresponding keyway.

An assembly having an articulation spindle mounted in a first sleeve inserted into a first arm of a clevis and in a second sleeve inserted into a second arm of said clevis said assembly comprising a blocking device. The blocking device comprising a screw with a first cylindrical portion which is screwed into an extension of the second sleeve and against which the second end of the articulation spindle can come to press, and a second portion, in the extension of the first portion, with a smaller cross section than said first cylindrical portion, a locking washer which is interposed between the second portion of the screw and the extension of the second sleeve in a locked position, and a longilinear element which passes through the screw and the second sleeve in a locked state.

An assembly having an articulation spindle mounted in a first sleeve inserted into a first arm of a clevis and in a second sleeve inserted into a second arm of said clevis said assembly comprising a blocking device. The blocking device comprising a screw with a first cylindrical portion which is screwed into an extension of the second sleeve and against which the second end of the articulation spindle can come to press, and a second portion, in the extension of the first portion, with a smaller cross section than said first cylindrical portion, a locking washer which is interposed between the second portion of the screw and the extension of the second sleeve in a locked position, and a longilinear element which passes through the screw and the second sleeve in a locked state.

A shaft clamp assembly has first, second and third members. Each member has respective first and opposite second ends, and an annular body extending between the ends. The second member has a radially outwardly extending flange at its first end, and a radially inwardly extending flange at its second end. The third member also has a radially inwardly extending flange at its second end. The first, second and third members are disposed concentrically in sequence, with a threaded portion of the first member being threadingly engaged with a corresponding threaded surface on the shaft, the second end of the first member presses against the second end flange of the second member, the first end flange of the second member presses against the first end of the third member and the second end flange of the third member presses against the object to thereby secure the object to the shaft.

The present invention relates to bolt and nut loosening prevention assemblies for preventing a bolt and a nut adapted to fix a first member and a second member to each other from loosening, including: loosening prevention members fitted to the bolt and the nut coupled to the first member and the second member, respectively; caps detachably coupled to the loosening prevention members, respectively, to prevent the loosening prevention members from rotating; and dual washers fixedly coupled to the insides of the loosening prevention members, respectively, to prevent the bolt and the nut from loosening.