Anti-tripping mechanism for swing plate seat of sewing machine

By designing a combination structure of fixing groove, fixing pin, bolt, nut, buffer spring and rubber block on the sewing machine swing plate seat, the problem of loosening of the sewing machine swing plate seat due to vibration or impact is solved, and a stable connection and anti-disengagement effect are achieved.

CN223963684UActive Publication Date: 2026-03-03NINGBO WANGYONG NEW MATERIALS TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

When a sewing machine swing plate seat is running at high speed, it may loosen due to vibration or impact, causing the buckle to come off, which poses a safety hazard.

Method used

The design incorporates a combination of a swing plate base, a fixing groove, a fixing pin, bolts, nuts, a buffer spring, and rubber blocks. This multi-point fixing and buffering structure enhances connection stability, counteracts vibration and impact, and prevents loosening.

Benefits of technology

When the sewing machine is running at high speed, it effectively prevents the swing plate seat from coming off, improves connection stability, reduces the possibility of loosening, and ensures safety.

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    Figure CN223963684U_ABST
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Abstract

The utility model discloses a sewing machine swing plate seat anti-release mechanism, which comprises a swing plate seat main body, a fixing pin, a bolt and a screw cap, the bottom of the swing plate seat main body is provided with a fixing groove, a connecting rod is inserted into the fixing groove, the bottom of the fixing pin is uniformly provided with preformed holes, and the screw cap is inserted into the fixing groove. The two ends of the bottom of the swing plate seat body are connected with the preformed holes through bolts, the ends of the bolts are locked and fixed through nuts, rubber blocks are evenly arranged in the nuts through buffer springs, and contact base plates are arranged at the ends, close to the swing plate seat body, of the rubber blocks. According to the swing plate seat, the swing plate seat main body, the fixing groove, the through hole, the fixing pin, the bolt, the nut, the preformed hole, the buffer spring, the rubber block and the contact base plate are installed, so that when the sewing machine runs at a high speed, the bolt is not prone to being gradually loosened due to vibration or impact, the stability of the swing plate seat main body after being fixed is improved, and the anti-releasing effect of the swing plate seat main body is guaranteed.
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Citation Information

Patent Citations

  • Sewing machine and swing plate seat anti-tripping mechanism thereof

    CN211311795U