Wooden door self-locking device with noise elimination function

Abstract

The invention discloses a wooden door self-locking device with a noise elimination function. The wooden door self-locking device comprises an installation assembly and a self-locking assembly. After a door is closed, a second spring is shortened and returns to the original position, the generated pulling force can drive a second connecting rod to return to the original position along a second fixing piece, and self-locking of the door is facilitated; and in the process that a third magnetic block and a fourth magnetic block rotate along a clamping groove, the third magnetic block gradually gets away from the first magnetic block and gets close to a second magnetic block, the fourth magnetic block gradually gets away from the second magnetic block and gets close to the first magnetic block, the third magnetic block and the first magnetic block extrude each other, and the fourth magnetic block and the second magnetic block extrude each other due to the fact that like poles repel each other, so that after an operator loosens the hand, the third magnetic block is away from the second magnetic block and gets close to the first magnetic block, and the fourth magnetic block is away from the first magnetic block and gets close to the second magnetic block. According to the wooden door self-locking device with the noise elimination function, self-locking is carried out synchronously through pulling force generated by shortening of the springs, attraction force generated by attraction of unlike poles of the magnetic blocks and pushing force generated by repulsion of like poles of the magnetic blocks, the self-locking capacity of the wooden door is improved, and the service life is prolonged conveniently.

Description

technical field [0001] The invention relates to the technical field of wooden doors, in particular to a wooden door self-locking device with a noise canceling function. Background technique [0002] A wooden door is a wooden door. According to the material, process and use, it can be divided into many types. Widely used in civil, commercial buildings and residences. There are European retro style, simple modern style, American style, Mediterranean style, Chinese style, French romantic style, and Italian style. For a mechanism with positive and negative strokes, no matter how great the driving force acting on the reverse stroke is, it cannot Make the mechanism move, and the mechanism that self-locks in this reverse stroke is called a self-locking mechanism. [0003] Patent No. CN201820355398.4 discloses a fire door self-locking device for indoor buildings in residential quarters, including a mounting base plate, which is fixedly mounted on a fire door leaf, and a rectangul...

AI Technical Summary

Problems solved by technology

[0003] Patent No. CN201820355398.4 discloses a fire door self-locking device for indoor buildings in residential quarters, including a mounting base plate, which is fixedly mounted on a fire door leaf, and a rectangular fixing block is fixed on the mounting base plate. A locking hook plate is hinged through a rotating shaft, and one end of the locking hook plate is provided with a hook head, and the hook head is matched with a U-shaped hook to hook it; the U-shaped hook is fixedly installed on the corner plate On the locking hook plate, a through hole is processed on the side away from the hook head, the through hole is connected with the spring tensioning device, and the hook head is hooked with the U-shaped hook. In this patent, the self-locking Only rely on the tension of the extension spring to complete, the force is single, the service life is short, and the locking hook plate and the rotating shaft will produce certain friction and noise during the rotation process, and the use effect is not good

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