Anti-collision buffer hinge

Abstract

The utility model provides a kind of anti-collision buffer hinge, including first fixed assembly, second fixed assembly and linkage, and the anti-collision buffer hinge is assembled to door frame by first fixed assembly, is assembled to door leaf by second fixed assembly, the first side of the linkage is rotatably connected with first fixed assembly, the second side of the linkage is fixedly connected with second fixed assembly;The anti-collision buffer hinge includes elastic member and pull rope, the pull rope and elastic member are connected between first fixed assembly and linkage, and before the linkage is rotated relative to first fixed assembly to door leaf completely open, the pull rope is pulled and drives elastic member to produce elastic deformation, and then by the elastic recovery force of the elastic member, linkage is stopped rotating.The utility model can avoid the inside edge of door leaf to collide with door frame or door hole, so as to reduce the probability of door leaf or hinge damage.

Claims

1. A collision-resistant buffer hinge, comprising a first fixing component, a second fixing component, and a linkage, wherein the collision-resistant buffer hinge is assembled to a door frame via the first fixing component and to a door leaf via the second fixing component, a first side of the linkage is rotatably connected to the first fixing component, and a second side of the linkage is fixedly connected to the second fixing component; characterized in that, The anti-collision buffer hinge includes an elastic element and a pull cord. The pull cord and the elastic element are connected between the first fixed component and the linkage. Before the linkage rotates relative to the first fixed component to the fully open door, the pull cord is pulled and causes the elastic element to undergo elastic deformation. The elastic restoring force of the elastic element causes the linkage to stop rotating.

2. The impact mitigating hinge of claim 1, wherein, The first fixing component includes a main body and a connecting seat, and the first fixing component is assembled to the door frame through the main body, and the connecting seat is locked and fixed on the main body and avoids the rotation path of the linkage. The connecting seat has an assembly hole, the elastic element is a compression spring, the first end of the pull rope is connected to a lock head, and the radial dimensions of the lock head and the compression spring are both larger than the radial dimension of the assembly hole, while the radial dimension of the pull rope is smaller than the radial dimension of the assembly hole; the lock head and the compression spring are located on the first side of the assembly hole, and the tail end of the pull rope passes through the compression spring and the assembly hole and is fixedly connected to a linkage located on the second side of the assembly hole.

3. The impact mitigating hinge of claim 2, wherein, The connecting seat includes a first strip-shaped portion and a second strip-shaped portion connected together. The first strip-shaped portion has a fixing hole, the assembly hole is located in the second strip-shaped portion, and the connecting seat is locked and fixed to the main body by a screw passing through the fixing hole.

4. The impact mitigating hinge of claim 2, wherein, The connecting seat includes a block-shaped body with a through hole coaxial with the mounting hole. The through hole and the mounting hole together penetrate the block-shaped body, and the radial dimensions of the lock head and the compression spring are both smaller than the radial dimension of the through hole. The lock head and the compression spring are respectively placed inside the through hole.

5. The impact mitigating hinge of claim 2, wherein, The main body includes a receiving groove and a connecting shaft that passes longitudinally through the receiving groove. The first side of the linkage has a shaft hole, and the linkage is assembled to the main body by inserting the connecting shaft into the shaft hole. The mounting hole on the connecting seat is located between the connecting shaft and the inner wall of the receiving groove and is adjacent to the end wall of the receiving groove.

6. The impact mitigating hinge of claim 5, wherein, The anti-collision buffer hinge includes two elastic elements and two pull ropes. The first fixing component includes two connecting seats, and the two connecting seats are respectively adjacent to the two end walls of the receiving groove. The first ends of the two pull ropes are elastically connected to the two connecting seats through the two elastic elements.

7. The impact mitigating hinge of claim 5, wherein, The linkage includes a first connecting plate and a second connecting plate. The shaft hole is located at the first edge of the first connecting plate, and the second connecting plate is perpendicularly connected to the second edge of the first connecting plate away from the first edge. The tail end of the pull rope is fixed at the junction of the first connecting plate and the second connecting plate.

8. A crash cushioning hinge according to claim 7, characterised in that The first connecting plate and the second connecting plate have a longitudinal screw hole at their joint. The end of the pull rope has a collar. The pull rope is fixed to the linkage by a locking screw. The locking screw passes through the collar and is threaded into the longitudinal screw hole. Alternatively, the first connecting plate and the second connecting plate have a longitudinal locking hole at their junction, and the tail end of the pull rope is fixed to the linkage by a locking member that is locked in the longitudinal locking hole.

9. The impact mitigating hinge of claim 2, wherein, The compression stroke of the compression spring is 1-3cm, and the spring constant is 20N / mm.

10. The impact mitigating hinge of claim 1, wherein, During the rotation of the linkage relative to the first fixed component, the elastic element keeps the pull rope taut through elastic deformation.

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