Headless hinge
By designing a headless hinge with semi-open left and right flaps and bearings, the problems of sealing failure and oil leakage in traditional hinges have been solved, achieving smooth opening and closing and high sealing performance, extending service life and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional hinges are prone to detachment and oil leakage after prolonged use.
The hinge features semi-open left and right flaps, along with positioning pads and bearings. The shaft design, with its matching curved convex and concave surfaces, ensures smooth opening and closing without the hinge falling off.
It achieves good hinge sealing, avoiding end detachment and oil leakage. It has a simple structure, is easy to install, has a long service life, and low maintenance costs.
Smart Images
Figure CN224032402U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a headless hinge, in particular to a headless hinge which is smooth in opening and closing and has good sealing performance. BACKGROUND
[0002] In the traditional simple hinge shaft core, iron rings are used to separate the left and right leafs, and the outer ends of the left and right leafs are closed by convex buckles, which is prone to falling off after long-term use. SUMMARY
[0003] The utility model aims at providing a headless hinge, which is assembled by half-open left and right leafs, positioning gaskets and bearings, so that the hinge has good sealing performance and the top end does not fall off.
[0004] The technical solution of the utility model is that the left leaf and the right leaf are provided with cylindrical cavities with one end closed and the other end open, the cavities of the left leaf and the right leaf are respectively provided with positioning gaskets, the bearing is installed in the middle of the shaft core, the two ends of the shaft core are arc convex surfaces, the two ends of the shaft core are inserted into the cavities of the left leaf and the right leaf and contact the positioning gaskets, and the contact surface between the positioning gasket and the shaft core is an arc concave surface.
[0005] The arc concave surface of the positioning gasket and the arc convex surface of the two ends of the shaft core are compatible with each other.
[0006] The working principle of the utility model is that the bearing separates the left and right leafs in the middle of the shaft core, the left and right leafs are provided with shaft core installation cavities with one end closed and the other end open, and the positioning gaskets with arc concave surfaces are placed in the cavities and cooperate with the arc convex surfaces of the two ends of the shaft core, so that the hinge is more smooth in opening and closing, and the end falling off and oil leakage do not occur.
[0007] The utility model has the advantages of simple structure, convenient installation, long service life and low maintenance cost, and can better solve the end falling off and oil leakage of the simple hinge. BRIEF DESCRIPTION OF DRAWINGS
[0008] Figure 1 is the overall structure schematic diagram of the utility model;
[0009] Figure 2 is the sectional structure schematic diagram of the utility model;
[0010] Figure 3 is the exploded structure schematic diagram of the utility model. DETAILED DESCRIPTION
[0011] According to the utility model, Figure 1 ,Figure 2 、 Figure 3 The utility model discloses on the basis of left page piece 1, right page piece 2, bearing 3, shaft core 4, positioning washer 5, characterized in that left page piece 1 and right page piece 2 all are provided with the cylindrical cavity of one end closed and the other end open, positioning washer 5 is arranged in the cavity of left page piece 1 and right page piece 2 respectively, bearing 3 is installed in the middle place of shaft core 4, the both ends of shaft core 4 are arc convex surface, and the both ends of shaft core 4 are inserted into the cavity of left page piece 1 and right page piece 2 respectively and contact with positioning washer 5, and the contact surface of positioning washer 5 and shaft core 4 is arc concave surface. The arc concave surface of positioning washer 4 and the arc convex surface shape of the both ends of shaft core 5 are arc adapted.
Claims
1. A headless hinge comprising a left leaf, a right leaf, a bearing, a shaft core, a positioning spacer, characterized in that, The left page sheet and the right page sheet are provided with cylindrical cavities with one end closed and the other end open, and positioning pads are arranged in the cavities of the left page sheet and the right page sheet respectively, and the bearing sleeve is arranged at the middle of the shaft core, the two ends of the shaft core are arc convex surfaces, the two ends of the shaft core are inserted into the cavities of the left page sheet and the right page sheet respectively and are in contact with the positioning pads, and the contact surfaces of the positioning pads and the shaft core are arc concave surfaces.
2. The endless hinge according to claim 1, characterized in that The arc concave surfaces of the positioning pads and the arc convex surfaces of the two ends of the shaft core are in conformity with the arc.