Automatic bolt device of door

Abstract

The invention discloses an automatic bolt device of a door. The automatic bolt device comprises a fixed seat plate, installation holes, a tightening screw, a fixing sleeve, a lower connection shaft, a bolt head, a first bolt wheel clamp, fixing holes, a second bolt wheel clamp, a bolt guide wheel, a nut, a bolt wheel fixing frame, a rotary bracket, an upper connection shaft, a spring, a fixing plate and a sliding chute. The automatic bolt device of the door has the beneficial effects that the bolt guide wheel installed at the bottom end of the door plays a role of wind blocking between the first bolt wheel clamp and the second bolt wheel clamp, the automatic bolt device is convenient to use, and the bolt guide wheel installed at the bottom end of the door plays a role of well supporting the door; and bolt guide wheels of different heights are used by adjusting the tightening screw, and the bolt guide wheel can move in different directions through rotation of the rotary bracket. The automatic bolt device is compact in overall structure, has good economic and social benefits and is suitable for being applied and popularized.

Description

technical field [0001] The invention relates to a latch device, in particular to an automatic latch device for a door, and belongs to the technical field of hardware application. Background technique [0002] The latch is an anti-theft component that prevents doors and windows from being opened from the outside. Modern door and window latches are generally metal, while ancient door and window latches are made of wood. The latch is generally divided into two parts, one part has a movable rod, and the other is a latch hole; the door is an indispensable tool for a modern house, and the latch is beneficial to the use of the door. Therefore, the latch has an important role in the use of the door. irreplaceable role. [0003] However, there are many deficiencies in the automatic door latches currently used. The current door latches cannot be closed automatically, and the door moves around under the action of the wind, which is difficult to play the role of wind resistance, and t...

AI Technical Summary

Problems solved by technology

[0003] However, there are many deficiencies in the automatic door latches currently used. The current door latches cannot be closed automatically, and the door moves around under the action of the wind, which is difficult to play the role of wind resistance, and there is no latch installed at the bottom of the current door. , it cannot guarantee that the door will play a good role in the process of moving, and the traditional door will appear door deformation after a long time of use

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