Locking device and cradle head for same

Abstract

A locking device(20) includes a mounting plate(24) and a support plate(25), wherein the mounting plate (24)includes a first surface(241) and two first side walls(242) which are positioned oppositely; first lug bosses (243) are extended to two ends of the first face (241), which are positioned oppositely; inside walls of both the first lug bosses (243)are provided with the support plate(25) respectively; positions of two outside walls of the support plate(25) corresponding to the first sliding grooves (2430) are provided with the second sliding grooves (250) which match the first sliding grooves (2430); the first side walls(242) are provided with a receiving groove(244); the locking device further includes a sliding block(261); the sliding block is slidingly positioned in the receiving groove(244); the sliding block (261) includes the first side face (2611) near the bottom of the receiving groove(244); the first side face(2611) is extended to a clamping part(2641) in the direction near the bottom of the receiving groove. When the sliding block(261) is fixed in the second sliding groove(250), the support plate(25) is locked with the mounting plate(24) through the clamping part(2641). In addition, a cradle head using the locking device is provided. The locking device and the cradle head can be quickly adjusted to weight balance, so that the locking accuracy of quick release plates is improved, and the quick release plates have small volume and quick disassembly.

Description

technical field [0001] The invention relates to the field of photographing equipment, in particular to a locking device and a platform used therefor. Background technique [0002] The pan-tilt is a supporting workbench for installing the camera, and the camera is set on the pan-tilt. Through the adjustment of the PTZ, the lens of the camera can be adjusted to achieve correct shooting of the target. The pan-tilt can be compatible with various types of cameras or lenses, and the center of gravity of each axis of the pan-tilt can be adjusted. However, due to the existing structure for adjusting the center of gravity, the relative displacement of the platform structure is used to adjust the center of gravity. Since most of the structural parts are load-bearing, the static friction between the structural parts is very large, making relative movement difficult. And when the relative displacement is very small, the image of the center of gravity is also very large, which makes it...

AI Technical Summary

Problems solved by technology

The existing pan / tilt quick release plate locking mechanism includes a first locking piece, a second locking piece and a plurality of springs arranged on the second locking piece, which is bulky and inconvenient to install, and because the springs are compressed and It is easy to swing when stretching, causing the spring to loosen when locking and withdrawing the quick release plate, which affects the accuracy of locking the quick release plate

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