A folding device for folding or disassembling rigid objects is provided with engaged toothed rows on opposing surfaces of two connecting plates. Opposite surfaces of protruded teeth of the toothed rows are provided with toothed grooves meshing with each other. When a locking mechanism perpendicular to a direction of the toothed rows is locked, the two connecting plates are driven by the locking mechanism to move toward each other in opposite directions along a pulling rod, so that the toothed grooves on the toothed rows tightly engage with one another, and the two connecting plates are pressed tightly and fixedly connected. When the folding device is in a connected state, meshing surfaces of the two connecting plates tightly mesh with each other through the corresponding toothed grooves, so that the two connected parts are combined together to form a whole rigid combination.

A security apparatus for a portable electronic device comprises at least one support member comprising opposing side surfaces and a plurality of support member surface features. At least one of the opposing side surfaces comprises a first engagement structure. One of the at least two arms comprises a second engagement structure configured to slidably engage the first engagement structure allowing movement in a first direction and opposing second direction. At least one locking assembly is positioned on at least one of the at least two arms and comprises a plurality of lock surface features configured to couple to the plurality of support member surface features. In a locked position, the at least one of the at least two arms is enabled to slide in the first direction. In an unlocked position, the at least one of the at least two arms is enabled to slide in the second direction.

An extendable grip for a mobile device includes a base configured to couple with a mobile device or a case of the mobile device. The plurality of elastic elements are coupled with the base at a first end. The plurality of elastic elements are coupled with a top at a second end. The plurality of elastic elements are configured to provide an expansion force that biases the top away from the base towards a neutral position when in the collapsed position. The base and the top are configured to produce a magnetic force that biases the top and the base towards one another. The extendable grip has the neutral position and a collapsed position. A distance between the top and the base is greater in the neutral position than in the collapsed position. The magnetic force is stronger than the expansion force in the retracted position.

A security apparatus for securing a portable electronic device comprises a support and a guide positioned within the support and defining a plurality of surface features. At least two holders are partially positioned between the guide and the support and define a plurality of complimentary surface features. A lock assembly is configured move between an unlocked state and a locked state. In an unlocked state, the at least two holders are enabled to move in a first direction that is away from the support and in an opposing second direction to move the at least two holders towards the support. In a locked state, the lock assembly moves the guide to clamp the at least two holders between the guide and the support to engage the surface features of the guide with those of the holders and inhibit movement of the at least two holders in the first direction.

An attachment mechanism for mounting an electronic device to a surface including a mounting plate configured to attach to the surface, the mounting plate having at least one projection, and a base configured to releasably couple to the mounting plate. The base may include a first biasing member, and a first arm pivotably coupled to the base and biased toward a first direction by the first biasing member, the first arm configured to interlock with the at least one projection when the base is coupled to the mounting plate. The base may further include a release mechanism coupled to the first arm such that actuation of the release mechanism when the base is coupled to the mounting plate in a secured engagement causes movement of the first arm in a second direction to disengage the first arm from the at least one projection to enable detachment of the base from the mounting plate.

An adjustable ground support beam for an LED display screen has a ground support beam body and two ground support feet, the ground support feet are respectively disposed at two ends under the ground support beam body to support the ground support beam body, each of the ground support feet includes a supporting base and a threaded rod screwed onto the supporting base, the threaded rod is rotatably disposed on the ground support beam body and limited in an upper and lower direction so as to move the supporting base along a lengthwise direction of the threaded rod by rotating the threaded rod to adjust the position of the supporting base. This improves the levelness of the LED display screen, and is convenient for quick installation.

A product-display system for displaying and securing a retail product. The system may include a retainer having a retainer bracket and a retainer body coupled to the retainer bracket. A retaining cable may be coupled to the retainer body at an opening in the retainer body. A fastener that may be unfastened to release the product from the retainer may only be accessed through the opening of the retainer body such that when the retaining cable is coupled to the opening, no fasteners of the retainer may be visible or accessible. The system may also include a display stem for holding the retainer and product. The display stem may include a recess for receiving at least a portion of the retainer body. The retaining cable may extend through the display stem and may simultaneously transmit power and data to a displayed product. The retainer may be returned to and held on top of the display stem using a retaining cable. The retainer may be oriented on top of the display stem in one or more predetermined positions through the use of magnetic forces.

An installable and dismantlable apparatus as provided by the present invention includes: a load bearing part; a fixing mechanism including an unlocking drive component and a fixing moving component, the unlocking drive component disposed on the load bearing part, and the fixing moving component connected with the unlocking drive component; and a transmission mechanism including a first stage transmission component and a second stage transmission component, the first stage transmission component located on the load bearing part, the second stage transmission component connected with the unlocking drive component, and the first stage transmission component connected with the second stage transmission component. The present invention not only realizes quick installation and dismantling, and improves the efficiency, but also saves manpower and time, and reduces cost.

An installable and dismantlable apparatus provided by the present invention includes: a load bearing part, a toggle assembly rotatably disposed on the load bearing part and a fixing assembly movably disposed on the load bearing part, and the fixing assembly is driven to move for fixing while the toggle assembly rotates. Through the use together of the load bearing part, the toggle assembly and the fixing assembly, while installed, the toggle assembly rotates and the fixing assembly is driven to move, and then the fixing assembly acts on another part for fixing; while dismantled, only the fixing assembly needs to be pushed towards its initial position, which not only ensures the convenience, reliability and firmness during the installation and fixation, but also saves manpower; and in practical use it is easy to operate and convenient for workers to install and dismantle quickly while ensuring the fixing effect.

An anti-theft device for protecting a portable electronic device from theft or unauthorized removal in a retail environment is provided. A shroud may at least partially enclose a portable electronic device. A dock may releasably engage the shroud such that the shroud and portable electronic device are locked to the dock when engaged with the dock. A key may engage activate a lock mechanism to release the shroud and the portable electronic device from the dock.