A torsion spring and damper combination reset device
By installing a combination of a torsion spring reset mechanism and a buffer on the side of the door leaf, the problem of the torsion spring reset mechanism moving back and forth in the middle position is solved by utilizing the torsional force of the torsion spring and the damping effect of the buffer, thus realizing the safe and automatic reset of the door leaf.
CN224379636UActive Publication Date: 2026-06-19NANJING KANGNI MECHANICAL & ELECTRICAL
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING KANGNI MECHANICAL & ELECTRICAL
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-19
AI Technical Summary
Technical Problem
The existing torsion spring reset device tends to move back and forth in the middle position when the door moves to the initial position, which leads to safety hazards.
Method used
A combined torsion spring and buffer reset device is adopted. By setting a torsion spring reset mechanism and a buffer on the side of the door leaf, the torsional force of the torsion spring and the damping effect of the buffer are used to realize the automatic reset of the door leaf and slow down the rebound, preventing back-and-forth movement in the middle position.
Benefits of technology
This improves door safety, prevents back-and-forth movement in the middle position, ensures the door smoothly returns to its initial position, and reduces injury to passengers.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224379636U_ABST
Abstract
The utility model discloses a torsion spring and buffer's combination reset device is provided with torsion spring reset mechanism and buffer in the door leaf side part, the torsion spring reset mechanism is equipped with the lower limit position cover, the pivot and upper limit position cover that connect in proper order, and the pivot outside is equipped with the sheath and torsion spring, and is equipped with the locating sleeve and locating block at the upper limit position cover, the one end of torsion spring is connected with lower limit position cover, and the other end is connected with metric shaft sleeve and intermediate limit position cover, the utility model discloses through torsion spring + buffer and realizes the automatic reset of door leaf, and through increasing buffer, the resilience of door is reduced, prevents the back and forth movement of door leaf in the middle position, improves security.
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