Connecting fastener

Abstract

The invention discloses a connecting fastener. The fastener comprises a connection piece body, and is characterized in that the connection piece body is in an H shape; through holes are respectively arranged at the middle part and four corners of the connection piece body, and the through holes at the four corners are stepped through holes; two positioning blind holes are respectively arranged beside each through hole positioned at the four corners of the connection piece body; the through holes positioned at the middle part of the connection piece body are stepped kidney-shaped through holes; a reinforcing rib is arranged at the periphery of the connection piece body; and the connection piece body is equipped with blind slots. The connecting fastener has the advantages of simple, reasonable, practical and novel structure, interchangeability and generality, and is accurate in location and reliable in installation; and by utilizing the connecting fastener, a display unit realizes 'spliced joints' with zero clearance or micro-clearance and uniform clearance as well as high flatness during the screen assembly process, thus preventing display images from being distorted and overcoming the situation of dead space in visual angles of the display screen caused by local projection or dent of a large screen.

Description

technical field [0001] The invention relates to a connecting fastener used for an LED display screen, in particular to a connecting fastener used for connecting LED display units to form a large-screen LED display screen. Background technique [0002] The structure of the currently widely used LED display screen includes a module composed of LED display circuit boards, a cabinet, a power supply, a driver board, a cooling fan, and a control circuit board. Set the power supply, cooling fan and control circuit board. The LED display screen of the large screen is composed of multiple boxes. . The display screen with this structure has many processing procedures and inconvenient processing during production; the cabinet is thick and heavy, and it is inconvenient to install; and the gap between the cabinets is large and uneven, resulting in the image displayed on the display screen being divided by the gap. It is very obvious, and the whole plane is uneven. [0003] The recentl...

AI Technical Summary

Problems solved by technology

The display screen with this structure has many processing procedures and inconvenient processing during production; the cabinet is thick and heavy, and it is inconvenient to install; and the gap between the cabinets is large and uneven, resulting in the image displayed on the display screen being divided by the gap. Very obvious, and the whole plane is uneven

[0003] The recently appeared flat LED large-screen display is composed of multiple flat LED display units connected to each other. Although this kind of display solves the problem of the thickness and weight of the box, the adjacent display units pass through the connecting piece, that is, the corner piece Connection, the positioning between the display units is not accurate, the fixing is not firm, the gap between the display units is uneven when the screen is assembled, and the flatness is not high enough, it is easy to cause jagged misalignment of the displayed image, the connection is not smooth, and the large screen is partially protruded Or the situation where the viewing angle of the display screen appears dead angle due to the sag

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