Elastic sleeve, connection structure and building connection system

By setting a first and a second section with different outer diameters in the axial direction of the elastic sleeve, combined with a toothed structure and a shrinkage opening, the problem of short lifespan of traditional elastic sleeves during installation is solved, achieving a longer service life and connection reliability.

CN116856558BActive Publication Date: 2026-06-12GUANGZHOU TIANXING MASCH JOINT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGZHOU TIANXING MASCH JOINT CO LTD
Filing Date
2023-07-20
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

Traditional elastic sleeves have a short service life and are prone to breakage due to compression deformation during the entire installation process.

⚗Method used

A flexible sleeve is designed by setting a first section and a second section with different outer diameters in the sleeve axis. When the first section is inserted into the installation hole, it does not participate in the extrusion deformation until it moves to the inner wall to fit, thereby reducing the extrusion force. Combined with the tooth structure and the shrinkage opening, the pull-out force and installation stability of the sleeve are improved.

🎯Benefits of technology

It extends the service life of the elastic sleeve, reduces the risk of breakage, and improves the reliability and stability of the connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to an elastic sleeve, a connecting structure and a building connecting system. The elastic sleeve is used for being connected with a first structural member. The first structural member is provided with a mounting hole. The mounting hole comprises a first hole section and a second hole section arranged along the axial direction of the mounting hole. The diameter of the first hole section is smaller than that of the second hole section. The elastic sleeve has a first section and a second section connected with each other along the axial direction of the elastic sleeve. The outer diameter of the first section is smaller than that of the second section. The first section is used for being connected and matched with the inner wall of the first hole section when the elastic sleeve is inserted into the mounting hole. The second section is used for being connected and matched with the inner wall of the second hole section when the elastic sleeve is inserted into the mounting hole. During the process that the elastic sleeve is gradually inserted into the mounting hole, the first section with a smaller outer diameter on the elastic sleeve is moved from the second hole section to the first hole section. The elastic deformation does not occur in the second hole section, and only the elastic deformation occurs in the first hole section. The extrusion force on the bottom of the elastic sleeve with the first section is reduced, and the service life of the elastic sleeve is prolonged.
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