Central shaft applicable to swivel chairs

Abstract

The invention relates to the field of furniture and office supplies, in particular to a central shaft applicable to swivel chairs.The central shaft applicable to the swivel chairs comprises a cylinder, a guide sleeve which is in sleeve joint with the cylinder and fixed, and a core rod in sleeve joint with the guide sleeve, wherein the core rod comprises a transfer part and a mounting part, which are integrally connected, and the diameter of the end surface on the transfer part, which is connected with the mounting part, is smaller than that of the end surface on the mounting part, which is connected with the end surface; the central shaft further comprises a fixed disk fixed at one end of the cylinder, a through hole positioned at the middle part of the fixed disk and a plurality of mounting holes positioned on the periphery of the through hole are formed on the fixed disk; and the free end of the transfer part penetrates the guide sleeve, penetrates the through hole and is clamped and connected outside the fixed disk through a buckle. The pressure of a chair seat of the swivel chair adopting the central shaft is born by the fixed disk, thereby reducing the abrasion of the guide sleeve and prolonging the service life of the central shaft structure.

Description

Technical field [0001] The invention relates to the fields of furniture and office supplies, in particular to a central shaft suitable for swivel chairs. Background technique [0002] The central axis in the prior art such as figure 1 As shown, it includes a cylinder 1, a guide sleeve 2 sleeved with the cylinder 1, a core rod 3 sleeved with the guide sleeve 2, the core rod 3 is provided with a skirt 33, from figure 1 From the top view, the part of the core rod 3 below the skirt 33 is inserted into the guide sleeve 2 and can be rotated in the guide sleeve 2, so that it is obvious that the core rod 3 is located above the skirt 33 for fixing and connecting the seat. Therefore, The pressure of the seat of the swivel chair in the prior art is completely borne by the guide sleeve 2, which causes the guide sleeve 2 to be easily worn and affects the service life of the central shaft. Summary of the invention [0003] The purpose of the present invention is to provide a central shaft suita...

AI Technical Summary

Problems solved by technology

[0002] The central axis in the prior art is As shown in Figure 1, it includes a cylinder 1, a guide sleeve 2 socketed with the cylinder 1, and a mandrel 3 socketed with the guide sleeve 2, and the mandrel 3 is provided with a skirt Side 33, from Figure 1, mandrel 3 The part below the skirt 33 is inserted into the guide sleeve 2 and can rotate in the guide sleeve 2, so obviously the mandrel 3 is positioned above the skirt 33 for fixedly connecting the seat. Therefore, the swivel chair in the prior art The pressure of the seat seat is completely borne by the guide sleeve 2, thus causing the guide sleeve 2 to be easily worn and affecting the service life of the central shaft

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