door hinge

Abstract

The invention discloses a door pivot which comprises an upper pivot system and a lower pivot system, wherein the lower pivot system comprises a lower pivot lower sleeve (1) and a lower pivot upper shaft (4), a lower pivot sleeve hole (2) is formed in the upper end of the lower pivot lower sleeve (1), a mandrel (5) is arranged at the lower end of the lower pivot upper shaft (4) and arranged in the lower pivot sleeve hole (2), and roll balls (3) are arranged between the mandrel (5) and the lower pivot sleeve hole (2); the upper pivot system comprises an upper pivot lower sleeve (10), an upper pivot upper shaft (12) and an upper pivot upper shaft sleeve (14), the upper pivot sleeve hole (11) is formed in the upper end of the upper pivot lower sleeve (10), the upper pivot upper shaft (12) is arranged in the upper pivot upper shaft sleeve (14), a stroke regulating rod (13) is arranged on the shaft body of the upper pivot upper shaft (12), and a pressure spring (20) is arranged between the top of the upper pivot upper shaft sleeve (14) and the upper pivot upper shaft (12). The door pivot has the advantages of easiness and flexibility in opening and closing, high accuracy and reliable quality.

Description

technical field [0001] The invention relates to a door hinge. Background technique [0002] At present, large-scale and high-quality door leaves of wood products, stone, stainless steel, glass and other materials are often used by designers in decoration projects, and the requirements for the connection precision between the door leaf and the surrounding interface are getting higher and higher, so the opening and closing of this type of door leaf is flexible. , The installation process is simple, the maintenance is convenient, and the precise and reliable shaft system is very important. At present, there is generally a lack of effective solutions. [0003] Conventional door leaves of this type have the following disadvantages: [0004] 1. The opening and closing of the heavy door leaf is not light and flexible; [0005] 2. Conventional door leaf installation of this type is cumbersome, labor-intensive, and installation process is complicated; [0006] 3. The conventional ...

AI Technical Summary

Problems solved by technology

[0004] 1. The opening and closing of the heavy door leaf is not light and flexible;

[0005] 2. Conventional door leaf installation of this type is cumbersome, labor-intensive, and installation process is complicated;

[0006] 3. The conventional installation precision of this type of door leaf is insufficient;

[0007] 4. Routine installation of such door leaves is prone to problems such as looseness, displacement and other unreliable quality

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