Connection device, LED (Light-Emitting Diode) display unit and LED display system

Abstract

The invention provides a connection device, an LED (Light-Emitting Diode) display unit and an LED display system. The connection device comprises a first connection piece, a second connection piece and a fastening piece; the first connection piece comprises a first shell, a pin piece, a driving rod and a resetting elastic piece; the first shell is internally provided with a guide channel; the pin piece comprises a guide part and a pin part; the guide part is movably arranged inside the guide channel; the pin part is provided with an extending position extending out of the first shell and a retraction position retracting back to the first shell; a connection hole is formed at the free end of the pin part; the middle part of a driving rod is pivoted on the first shell; the first end of the driving rod is matched with the guide part in a driving manner; the resetting elastic piece is arranged inside the first shell and is matched with the guide part; the second connection piece comprises a second shell; the second shell is provided with a fastening piece through hole and a pin hole; and the fastening piece is arranged inside the fastening piece through hole in a penetrating manner, and the pin part is fixedly arranged inside the pin hole. The connection device provided by the invention is rapider and more convenient to connect and dismount.

Description

technical field [0001] The invention relates to the field of assembly technology, in particular to a connection device, an LED display unit and an LED display system. Background technique [0002] At present, large-screen LED display screens include multiple display panels, and there are many ways to connect the display panels, such as: pull lock type, rotary zipper type, screw pin type and other ways to realize. However, the pull lock type connection adjusts the extension and retraction of the positioning pin by pulling the lever, which has defects such as many product parts, high cost, large volume, and large space occupation. The rotary zipper connection drives the lock hook through the cam, and the lock hook can rotate inside and outside to tighten the female lock. There are defects such as the inability to disassemble a single unit after installation, and the product positioning is not accurate enough. The threaded pin connection fixes the positioning pin inside the th...

AI Technical Summary

Problems solved by technology

However, the pull lock type connection adjusts the extension and retraction of the positioning pin by pulling the lever, and there are defects such as many product parts, high cost, large volume, and large space occupation.

The rotary zipper connection drives the lock hook through the cam, and the lock hook can rotate inside and outside to tighten the female lock. There are defects such as the inability to disassemble a single unit after installation, and the product positioning is not accurate enough.

The threaded pin connection fixes the positioning pin inside the threaded sleeve, manually rotates it 90 degrees for positioning, and then locks it by rotating the external threaded sleeve, which has the defect of insufficient product positioning accuracy

[0003] At present, the installation of the LED display screen needs to be coordinated by multiple people, and the fixed structure is heavy, it is difficult to disassemble and assemble a single display panel, and it is not easy to turn around and quickly disassemble and assemble. Waste of resources such as environmental protection

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