Height-adjustable handle mechanism and main chassis

Abstract

A height-adjustable handle mechanism includes a base, a rotating shaft, a mounting component, and a handle. The base defines a first axial direction, with the rotating shaft fixed along this direction. The outer peripheral surface of the rotating shaft is machined with a helical thread groove. The mounting component is rotatably sleeved on the rotating shaft and features a protrusion on its inner wall that engages with the helical thread groove. The handle is rigidly connected to the mounting component. When external force drives the handle to rotate around the rotating shaft, the protrusion on the mounting component moves along the helical trajectory of the thread groove. Through screw transmission, rotational motion is converted into axial displacement of the mounting component and handle along the first direction, thereby enabling height adjustment of the handle. Additionally, the present application provides a main chassis incorporating this mechanism.

Claims

1. A height-adjustable handle mechanism, wherein, include: A base having a first orientation; A rotating shaft is disposed on the base along the first direction, and a threaded groove is provided on the outer peripheral surface of the rotating shaft; The assembly is rotatably fitted onto the rotating shaft and has a protrusion that inserts into the threaded groove; the handle is connected to the assembly; when the handle is rotated by an external force, the protrusion spirals up and down along the threaded groove, causing the handle to move to achieve height adjustment along the first direction.

2. The handle mechanism as described in claim 1, wherein, The assembly includes a first plate and a second plate that mates with the first plate. The first plate has a first slot on the side facing the second plate, and the second plate has a second slot on the side facing the first plate. The first slot and the second slot are connected to form a pivot hole. The pivot is located in the pivot hole, and the protrusion is located in the first slot.

3. The handle mechanism as described in claim 2, wherein, The base includes a body, a first extension and a second extension. The first extension and the second extension protrude from one side of the body and are spaced apart along the first direction. The first extension, the second extension and part of the body enclose an assembly space, and the pivot is disposed within the assembly space.

4. The handle mechanism as described in claim 3, wherein, The first extension is provided with a first shaft hole and a slot communicating with the first shaft hole, the second extension is provided with a second shaft hole, the rotating shaft includes a first end and a second end, the first end is provided with a locking block, the first end is inserted into the first shaft hole, the locking block is inserted into the slot, and the second end is inserted into the second shaft hole.

5. The handle mechanism as described in claim 3, wherein, The handle mechanism further includes a locking element, which includes a movable latch and a button. The movable latch includes a sleeve and a fixing rib protruding from one end of the sleeve. The first extension also has a fixing groove, and the fixing rib is movably inserted into the fixing groove. The sleeve is sleeved on the rotating shaft. The sleeve has an inclined groove, and the extension direction of the inclined groove is inclined to the first direction. The assembly has a through hole, and the opening extends along a second direction. The inclined groove communicates with the opening, and the second direction is perpendicular to the first direction. The button is movably disposed in the opening, and part of the button is inserted into the inclined groove.

6. The handle mechanism as described in claim 5, wherein, The locking fastener also includes an elastic element, and the assembly also includes a spacer ring. The spacer ring is fixedly disposed in the pivot hole. One end of the elastic element abuts against the end of the sleeve that is away from the fixing rib, and the other end abuts against the spacer ring.

7. The handle mechanism as described in claim 5, wherein, The sleeve has a protruding limiting block on its outer side, and the assembly has a limiting hole that extends along the first direction and communicates with the rotating shaft hole. The limiting block is inserted into the limiting hole.

8. The handle mechanism as described in claim 1, wherein, The handle mechanism further includes a limiting part connected to the end of the assembly, the limiting part being configured to abut against the base to limit the rotation range of the handle.

9. The handle mechanism as described in claim 1, wherein, The handle includes a gripping portion and a bent portion connected to the gripping portion, the bent portion being connected to the assembly.

10. A host casing, wherein, Includes a tray, a bracket, and a handle mechanism as described in any one of claims 1 to 9, wherein the tray is disposed within the bracket and the handle mechanism is disposed at one end of the bracket.

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