铰链
By designing two spaced cam surfaces and a piston structure on the hinge shaft, the problems of limited shaft rotation angle and unstable piston force are solved, achieving the effect of large-angle shaft rotation and stable piston force.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BOKLEAO IND (HUIZHOU) CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-17
AI Technical Summary
The existing hinge has a limited rotation angle and the piston is subjected to unstable forces.
Design a hinge structure with two cam surfaces spaced apart along the axis on the rotating shaft. Combined with the first and second pistons and damping components, the rotating shaft can rotate at a larger angle and provide stable force. Through the cooperation of the first and second cam surfaces with the rollers and the roller shaft, the angle of rotation of the rotating shaft is increased and the stability of the piston is improved.
It achieves a rotation angle of more than 180° for the rotating shaft, and by increasing the contact surface and providing a supporting force, the piston is subjected to more stable forces during reciprocating motion.
Smart Images
Figure CN224514994U_ABST
Abstract
Claims
1. A hinge, characterized in that, The hinge includes: The housing has a cavity; A rotating shaft is rotatable to be in an open or closed position. The rotating shaft is provided with a first cam surface and two second cam surfaces spaced apart along the axial direction of the rotating shaft. The first cam surface is located between the two second cam surfaces. A first piston is disposed in the cavity and can move along the axial direction of the cavity. The first piston is located on one side of the rotating shaft and has a roller at one end facing the rotating shaft. The axial direction of the roller is parallel to the axial direction of the rotating shaft. The upper and lower sides of the first piston are respectively provided with clearance spaces to avoid the second cam surface. A first damping component is used to cause the roller to abut against the first cam surface to provide a damping force to the rotating shaft to maintain it in the open position or the closed position; The second piston is disposed in the cavity and can move along the axial direction of the cavity. The second piston is located on the other side of the rotating shaft and has a roller at one end facing the rotating shaft. The axial direction of the roller is parallel to the axial direction of the rotating shaft. The second damping component is used to cause the two ends of the roller to abut against the two second cam surfaces respectively, so as to provide a damping force or a driving force for the rotating shaft during the process from the open position to the closed position or from the closed position to the open position.
2. Hinge according to claim 1, characterized in that The first cam surface and the second cam surface are symmetrical about a first vertical plane, and the first cam surface and the second cam surface are symmetrical about a second vertical plane; wherein the first vertical plane passes through the axis of the rotating shaft, and the second vertical plane passes through the axis of the rotating shaft and is perpendicular to the first vertical plane.
3. Hinge according to claim 2, characterized in that The first cam surface includes two first positioning surfaces symmetrical about the first vertical plane and two second positioning surfaces symmetrical about the second vertical plane. The second cam surface includes two cam surfaces symmetrical about the first vertical plane. Two protrusions are formed at the connection between the two ends of the two cam surfaces. The positions of the second positioning surfaces and the protrusions correspond. When the roller abuts against the first positioning surface, the rotating shaft is in the open position. When the roller abuts against the second positioning surface, the rotating shaft is in the closed position.
4. Hinge according to claim 3, characterized in that A third positioning surface is provided at the center of the cam surface, and the third positioning surface corresponds to the position of the first positioning surface.
5. The hinge according to claim 1, characterized in that, The diameter of the roller is larger than the diameter of the roller shaft, the roller shaft is installed in the vertical groove of the second piston, and the damping force of the first damping component is greater than the damping force of the second damping component.
6. The hinge of claim 1, wherein The two second cam surfaces are symmetrically arranged with respect to the axis of the second piston.