Sliding pivot structure

Abstract

A sliding pivot structure includes a first support, a second support, at least one sliding support, a first rotating shaft, a second rotating shaft, and a connecting crank. The sliding support has a sliding groove and a pivot end. The first rotating shaft is supported on the first support, and the second rotating shaft is supported on the second support. The connecting crank also includes a first crank and at least one second crank. The first crank and the second crank are pivotally connected. The first crank is used for the second rotating shaft to be pivotally connected to the pivot end, while the second crank is used for the first rotating shaft to be pivotally connected and to move the first rotating shaft within the sliding groove. The first crank and the second crank swing relative to each other, causing the first rotating shaft to move within the sliding groove, thereby changing the distance between the first rotating shaft and the second rotating shaft.

Claims

1. A sliding pivot structure, comprising: First support frame; First and second support; At least one sliding support has a sliding groove and a pivot end; A first rotating shaft supported on the first support; a second rotating shaft supported on the second support; and a linkage crank comprising a first crank and at least one second crank, the first crank and the second crank being pivotally connected, the first crank being pivotally connected to the pivot end of the second rotating shaft, and the second crank being pivotally connected to the first rotating shaft and causing the first rotating shaft to move within the slide groove; wherein the first crank and the second crank oscillate relative to each other, causing the first rotating shaft to move within the slide groove, thereby changing the distance between the first rotating shaft and the second rotating shaft.

2. The sliding pivot structure as claimed in claim 1, wherein the first support has a first seat and a first pivot, and the first pivot extends from the first seat and supports one end of the first pivot.

3. The sliding pivot structure as described in claim 1 or 2, wherein the second support has a second seat and a second pivot, the second pivot extending from the second seat and supporting one end of the second pivot.

4. The sliding pivot structure as described in claim 1, wherein the slide groove of the sliding support and the pivot end are arranged in an extending direction.

5. The sliding pivot structure as described in claim 1 or 4, wherein one end of the slide is adjacent to the pivot end, and the other end of the slide is away from the pivot end.

6. The sliding pivot structure as described in claim 1, wherein a sliding seat is provided on the sliding support.

7. The sliding pivot structure as described in claim 1, further comprising another sliding support, wherein the two sliding supports are spaced apart from each other so that the linkage crank is disposed between the two sliding supports.

8. The sliding pivot structure as described in claim 1, wherein the other end of the first pivot is secured by a buckle.

9. The sliding pivot structure as described in claim 1, wherein a torque assembly is provided at the other end of the second pivot.

10. The sliding pivot structure as claimed in claim 9, wherein the torque assembly includes a concave wheel, a cam, at least one friction plate and an elastic element, which are connected in series to the other end of the second pivot and secured with a screw.

11. The sliding pivot structure as described in claim 10, wherein the concave gear system has a fixed end and is inserted into the sliding support.

12. The sliding pivot structure as claimed in claim 1, further comprising another second crank, wherein the first crank is pivotally connected between the two second cranks, and a crank sleeve is provided between the two second cranks.

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