A kit of parts for use in demountably configuring a variety of structural assemblies. A kit may comprise a plurality of cylindrical structural components configured for engagement with various types of male connector components along the sides or at the ends of the cylindrical structural components, there provided for demountable engagement of a female-end socket component at the end of another cylindrical structural component. The kit may additionally comprise components for one or more of roller carriage assemblies and/or one or more of sliding carriage assemblies configured for rolling or sliding movement along rail assemblies comprising a plurality of cylindrical, square, rectangular, or octagonal track components. The rail assemblies may be supported by bases comprising the cylindrical structural components and other components such as weight components, as well as threaded foot components or threaded caster components on which the rail assemblies can be adjustably levelled.

An angle-adjustable supporting mechanism that includes a knob-type locking mechanism and a rotatable holder is provided. The knob-type locking mechanism has a base, a knob, and a latch member. The base has a receiving space and a supporting portion. The knob is rotatably received in the receiving space. The latch member is movably received in the supporting portion in a linear direction. The latch member has a bolt, a first stressed part, and a second stressed part. The bolt is disposed at one side of the first stressed part. The first stressed part is disposed between the bolt and the second stressed part. When the knob is rotated in different directions, the bolt of the latch member is drove to lock or release.

An angle adjustment apparatus is provided, and includes a fastening component and an angle adjustment component rotatably connected to the fastening component. At least a part of the angle adjustment component is located in the fastening component, and the angle adjustment component can rotate in a horizontal direction and a vertical direction relative to the fastening component. In this way, angle adjustment efficiency is improved. In addition, a communication device can be prevented from being oblique after angle adjustment, thereby preventing a signal coverage function of the communication device from being affected.

A bracket includes a fixing seat, an adapter seat, a first clamping block, a second clamping block, a first clamping piece, a second clamping piece, a main screw and a position-limiting element. The fixing seat includes a first protrusion post. The adapter seat includes a second protrusion post. The first clamping block includes a first through-hole and a first pivot hole. The second clamping block including a first tapped hole and a second pivot hole. The first clamping piece includes a first clamping part and a first pivotal shaft. The first pivotal shaft is inserted into the first pivot hole. The second clamping piece includes a second clamping part and a second pivotal shaft. The second pivotal shaft is inserted into the second pivot hole. The main screw is penetrated through the first through-hole and then tightened into the second tapped hole.

A system for a bipod. The system includes a coupler to couple at least one leg to a firearm. The leg includes one flexible joint which allows the leg to flex about a flexible joint. The system allows conversion of the flexible leg from a flexible position to a rigid position whereby flexing about the flexible joint is prevented. A lock is manipulated to convert the leg from rigid to flexible.

A selectively adjustable and lockable utility mount is used to mount a device to a stable structure. The utility mount includes a hydraulic lock that applies the locking force that maintains the locked condition of the utility mount. Mounting brackets for utility mounts have spaced-apart mount elements that engage a surface of a stable structure. Some configurations of mounting bracket include mount elements that are movable between stored conditions and deployed conditions. The stored conditions reduce the size of the device to make it more convenient to pack. A climbing stick uses the storable mount elements.

An articulating joint for coupling an accessory to a support comprises a platform, a base, and a wedge. The platform couples to one of the support and the accessory, and the base couples to the other of the support and the accessory. The platform includes a hinge having a bore and teeth positioned radially around the bore. The base includes an undercut and a complementary hinge having a thru hole. The wedge includes complementary teeth positioned radially around a passageway and a ramp that cooperates with the undercut of the base. A shaft having a threaded portion engages a threaded insert to couple the hinge of the platform, the wedge, and the complementary hinge of the base. Rotating the shaft to a locked position causes the teeth of the platform to mesh with the complementary teeth of the wedge to retain the platform in an orientation relative to the base.

A tablet holding assembly for holding a readable medium at various viewing angles. The tablet holding assembly comprises a base portion for placement on a surface and an adjustable portion including a ledge for holding the readable medium. The base portion includes a base knuckle and the adjustable portion includes an adjustable knuckle aligned with the base knuckle. A hinge assembly including at least one pin extends through the base knuckle and the adjustable knuckle to pivotally connect the base portion to the adjustable portion permitting the adjustable portion to be pivoted between viewing angles.

The present disclosure relates to the technical field of photography and videography equipment, and in particular to a rotating assembly, a supporting stand, and a photographing device. The rotating assembly comprises a head adjusting structure including a first button, a first toothed disc, a second toothed disc, and a first elastic member. The first toothed disc is fixedly connected with a first head connector. The first elastic member is configured to enable teeth on the second toothed disc to mesh with teeth on the first toothed disc. The first button is configured to overcome an elastic force of the first elastic member under the action of an external force, so that the teeth on the second toothed disc are disengaged from the teeth on the first toothed disc. The angle of the first head connector fixedly connected to the first toothed disc is adjusted by using the first button, the first toothed disc, the second toothed disc, and the first elastic member, so that the angle of an external device, such as an image acquisition apparatus, mounted to the first head connector can be adjusted without using a separate head, which contributes to cost saving.

A gimbal photographing device includes a fuselage; a folding mechanism, connected to the fuselage; and a gimbal camera, connected to the folding mechanism. The gimbal camera is foldable and unfoldable relative to the fuselage via the folding mechanism. A power switch is disposed on the fuselage. The folding mechanism includes a base connected to the gimbal camera. When the gimbal camera is unfolded relative to the fuselage, the base is configured to abut against the power switch to turn on the gimbal photographing device.