Pulley-type pull-out scroll mechanism and its display device

Abstract

A pulley-type pull-out scroll mechanism and its display device include a carrier plate, at least one movable plate, and at least one pulley sliding structure. The carrier plate has a main frame portion and a plurality of support portions extending along the length direction of either side of the main frame portion. The movable plate has a side end and at least one slide bar extending along the length direction of one side end, the slide bar sliding relative to the support portion. The pulley sliding structure is supported below the carrier plate and the movable plate, and includes a support member connecting the side end and at least one pulley assembly arranged along the length direction of the support member. The pulley assembly includes a first pulley seat, a second pulley seat, and a transmission belt. The first pulley seat has two side arms extending to the second pulley seat, and the second pulley seat is elastically disposed at the ends of the two side arms so that the transmission belt can be tensioned between the first pulley seat and the second pulley seat.

Claims

1. A pulley-type retractable winding mechanism, comprising: A carrier plate has a main frame and a plurality of support portions extending along the length direction of either side of the main frame; At least one movable plate has a side end and at least one slide bar extending along the length direction of the side end, the slide bar sliding relative to the support portions; The system includes at least one pulley sliding structure supported below the carrier plate and the movable plate, and includes a support member connected to the side end and at least one pulley assembly arranged along the length of the support member; wherein each pulley assembly includes a first pulley seat, a second pulley seat and a transmission belt, the first pulley seat having two side arms extending to the second pulley seat, and the second pulley seat being elastically disposed at the ends of the two side arms so that the transmission belt can be tensioned between the first pulley seat and the second pulley seat.

2. The pulley-type pull-out roller mechanism as described in claim 1, wherein the main frame has a movable plate and a pulley sliding structure on both sides.

3. The pulley-type pull-out roller mechanism as described in claim 1, wherein the carrier plate is provided with at least one sliding recess located between any two of the support portions, and the slider of the movable plate cooperates to move within the sliding recess.

4. The pulley-type pull-out reel mechanism as claimed in claim 1, wherein a tensioner is provided on the support member and is adjacent to the first pulley seat and tensioned to one side of the drive belt.

5. The pulley-type pull-out reel mechanism as described in claim 1 or 4, wherein a tensioner is provided on the bracket portion and adjacent to the second pulley seat to tension the other side of the drive belt.

6. The pulley-type pull-out roller mechanism as described in claim 1, wherein a first pulley is provided on the first pulley seat, and a second pulley is provided on the second pulley seat, and the transmission belt is sleeved between the first pulley and the second pulley for tensioning.

7. The pulley-type pull-out roller mechanism as described in claim 6, wherein the first pulley seat has two side arms extending to the second pulley seat, and the second pulley seat is elastically disposed at the ends of the two side arms with at least one elastic element, and a connecting end extends from the ends of the two side arms and is fixed to the slide bars, and the first pulley seat is provided with a fixed end fixed to the support member.

8. The pulley-type pull-out roller mechanism as claimed in claim 1, wherein the pulley sliding structure further includes at least one sliding component, the sliding component including a first sliding member and a second sliding member and being retractably slidably engaged, and the support member is provided with at least one mounting portion for the first sliding member to be fixed by a fixing member, while the second sliding member is fixed below the support portion.

9. The pulley-type pull-out roller mechanism as described in claim 8, wherein the first sliding member has a slide rail, the second sliding member has a slide base, and the slide rail cooperates with the slide base.

10. The pulley-type pull-out roller mechanism as described in claim 8 or 9, wherein the carrier plate is provided with at least one sliding recess located between any two of the support portions, and the slider of the movable plate operates in the sliding recess, the sliding recess is provided with a first sliding groove, and the first sliding member is provided with a second sliding groove extending in its extension direction, and the slider of the movable plate is provided with a flange and slides through the first sliding groove and the second sliding groove for limiting movement.

11. A display device having a pulley-type pull-out scroll mechanism, comprising: A pulley-type drawer mechanism as described in any one of claims 1 to 10; A housing assembly includes a main housing and at least one stretchable shell portion, the main housing being supported below the carrier plate, and the stretchable shell portion being supported below the movable plate and the pulley sliding structure; and a flexible member covering the carrier plate and the movable plate, with one end of the flexible member passing through the side end and wound around the support member for fixation.

12. The display device with a pulley-type pull-out scroll mechanism as described in claim 11, wherein the stretch shell portion is provided with a groove, and the main shell portion is provided with a frame edge, and the groove fits into the frame edge to allow for sliding engagement between the main shell portion and the stretch shell portion.

13. The display device with a pulley-type pull-out scroll mechanism as described in claim 12, wherein a first pulley assembly is provided inside the frame, and a second pulley assembly is provided outside the track groove, the first pulley assembly contacting the outside of the track groove, and the second pulley assembly contacting the inside of the frame.

14. The display device having a pulley-type pull-out scroll mechanism as described in claim 11, wherein a side component is provided on one side of the stretching shell portion and attached to the side end of the movable plate.

15. A display device having a pulley-type pull-out scroll mechanism as described in claim 11 or 14, wherein a rotating shaft is provided on the other side of the side end.

16. The display device having a pulley-type pull-out scroll mechanism as described in claim 11, wherein the flexible component is a flexible display.

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