Heavy center shaft mechanism capable of being longitudinally and telescopically adjusted in door leaf

Abstract

The utility model belongs to a heavy center shaft mechanism capable of being longitudinally and telescopically adjusted in a door leaf, which comprises a door frame and the door leaf, and is characterized in that a center shaft at the upper end is arranged in a guide sleeve, the guide sleeve is fixed on the door leaf by a screw II and a threaded stop piece, the center shaft is arranged in the guide sleeve, a line shaft is arranged at the upper end, and the line shaft is arranged in a line shaft positioning sleeve; a locking nut is arranged at the lower end of the middle shaft; a ground shaft positioning sleeve is arranged on the door frame below the locking nut; an adjustable core shaft is arranged in the ground shaft positioning sleeve; a steel ball is arranged at the lower end of the adjustable core shaft, a ground shaft supporting block is arranged below the steel ball, and an expansion bolt is arranged below the ground shaft supporting block. The door leaf is convenient and fast to install, labor intensity is relieved, efficiency is improved, and longitudinal adjustment is convenient in use.

Description

Technical Field

[0001] The utility model belongs to a central axis mechanism of a door leaf, in particular to a heavy central axis mechanism which can be longitudinally telescopically adjusted inside the door leaf. Background Art

[0002] At present, the central axis system for doors with the same structure is very troublesome to install during installation, debugging and use adjustment due to the restriction of product structure. At the same time, the longitudinal adjustment of the door leaf is very difficult, especially after the local axis is installed and fixed, there is no other way to adjust the longitudinal direction of the door leaf except to dismantle the door leaf, and the longitudinal adjustment of this door leaf is particularly important in the long-term use process. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned technical deficiencies and provide a central axis installed in the axial holes provided at the upper and lower ends of the door frame and the door leaf, the central axis at the upper end is installed in a guide sleeve, the guide sleeve is fixed to the axial hole of the door leaf by two screws and a threaded stop plate, a circumferential axis is installed on the central axis, the circumferential axis is installed in the circumferential axis positioning sleeve at the upper end of the central axis, and similarly, a central axis is installed at the lower part of the door leaf, an adjustable core shaft is installed under the central axis, a steel ball is installed under the adjustable core shaft, and an expansion bolt is installed under the steel ball; this solves the problem of very troublesome installation of the door leaf and facilitates the longitudinal adjustment of the door leaf, and provides a heavy-duty central axis mechanism with longitudinal telescopic adjustment inside the door leaf.

[0004] The technical solution adopted by the utility model to solve the technical problem is: a heavy-duty central axis mechanism with longitudinal telescopic adjustment inside a door leaf, comprising a door frame and a door leaf, wherein axial holes are provided at the upper and lower ends of the left sides of the door frame and the door leaf, and the central axis is arranged in the axial hole, characterized in that the central axis at the upper end is arranged in a guide sleeve, the guide sleeve is fixed to the door leaf with screw two and a threaded stop plate, the central axis is arranged in the guide sleeve, the upper end is arranged with a celestial axis, the celestial axis is arranged in a celestial axis positioning sleeve, and the celestial axis positioning sleeve is fixed to the door frame with screw one; similarly, the lower central axis is arranged in the guide sleeve, the guide sleeve is arranged in the axial hole, a locking nut is arranged at the lower end of the central axis, a ground axis positioning sleeve is arranged on the door frame below the locking nut, an adjustable core shaft is arranged in the ground axis positioning sleeve, a sealing ring is arranged between the ground axis positioning sleeve and the adjustable core shaft, a triangular groove is provided at the lower end of the adjustable core shaft, a steel ball is arranged in the groove, a ground axis support block is arranged below the steel ball, and an expansion bolt is arranged below the ground axis support block.

[0005] The beneficial effects of the utility model are as follows: the door leaf of the utility model is convenient and quick to install, labor intensity is reduced, efficiency is improved, and longitudinal adjustment is convenient during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The following is a detailed description of the embodiments with reference to the accompanying drawings.

[0007] Figure 1 It is the front view of the heavy-duty central axis mechanism inside the door leaf that can be adjusted longitudinally.

[0008] In the figure: 1-door frame; 2-door leaf; 3-top axis positioning sleeve; 4-screw one; 5-top axis; 6-threaded stopper; 7-screw two; 8-guide sleeve; 9-ground axis positioning sleeve; 10-adjustable core shaft; 11-steel ball; 12-expansion bolt; 13-ground axis support block; 14-sealing ring; 15-locking nut; 16-center axis; 17-axis hole. DETAILED DESCRIPTION

[0009] Embodiment, referring to the attached drawings, a heavy-duty central axis mechanism with longitudinal telescopic adjustment inside a door leaf, comprising a door frame 1 and a door leaf 2, with shaft holes 17 provided at the upper and lower ends of the left sides of the door frame 1 and the door leaf 2, a central axis 16 is installed in the shaft hole 17, characterized in that the central axis 16 at the upper end is installed in a guide sleeve 8, the guide sleeve 8 is fixed to the door leaf 2 with screws 7 and a threaded stopper 6, the central axis 16 is installed in the guide sleeve 8, a sky axis 5 is installed at the upper end, the sky axis 5 is installed in a sky axis positioning sleeve 3, and the sky axis positioning sleeve 3 is fixed to the door frame with screws 4 1; similarly, the lower central axis 16 is mounted in the guide sleeve 8, the guide sleeve 8 is mounted in the shaft hole 17, the lower end of the central axis 16 is equipped with a locking nut 15, the lower end of the locking nut 15 is equipped with a ground axis positioning sleeve 9 on the door frame 1, the ground axis positioning sleeve 9 is equipped with an adjustable mandrel 10, the ground axis positioning sleeve 9 and the adjustable mandrel 10 are provided with a sealing ring 14, the lower end of the adjustable mandrel 10 is provided with a triangular groove, the groove is equipped with a steel ball 11, the ground axis support block 13 is installed below the steel ball 11, and the ground axis support block 13 is equipped with an expansion bolt 12 below.

[0010] The upper and lower central shafts 16 of the utility model can both be adjusted in both directions through the threaded stopper 6 and the expansion bolt 12, so that the door leaf can be installed and adjusted conveniently and quickly, and the central shaft 16 has a larger load capacity.

Claims

1. A heavy-duty central axis mechanism capable of longitudinally telescopically adjusting the interior of a door leaf, comprising a door frame (1) and a door leaf (2), wherein shaft holes (17) are provided at the upper and lower ends of the left sides of the door frame (1) and the door leaf (2), and a central axis (16) is installed in the shaft hole (17), characterized in that The central axis (16) at the upper end is installed in the guide sleeve (8), and the guide sleeve (8) is fixed to the door leaf (2) by screws (7) and threaded stoppers (6). The central axis (16) is installed in the guide sleeve (8), and the upper end is provided with a zenith axis (5), which is installed in a zenith axis positioning sleeve (3), and the zenith axis positioning sleeve (3) is fixed to the door frame (1) by screws (4); similarly, the central axis (16) at the lower end is installed in the guide sleeve (8), and the guide sleeve (8) is installed in the axis hole (17). The central axis (16) is installed in the guide sleeve (8), and the guide sleeve (8) is installed in the axis hole (17). ) is provided with a locking nut (15) at the lower end, a ground axis positioning sleeve (9) is provided on the door frame (1) below the locking nut (15), an adjustable mandrel (10) is provided in the ground axis positioning sleeve (9), a sealing ring (14) is provided between the ground axis positioning sleeve (9) and the adjustable mandrel (10), a triangular groove is provided at the lower end of the adjustable mandrel (10), a steel ball (11) is provided in the groove, a ground axis support block (13) is provided below the steel ball (11), and an expansion bolt (12) is provided below the ground axis support block (13).

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