Display and regulating device thereof

1. A regulating device, comprising:

a first element comprising a first body, a guide bar, and a first positioning region, wherein the first body is a cylindrical structure extending along a longitudinal direction, and the guide bar is parallel with the first body, and the first positioning region is disposed at the first body;

a second element comprising a second body having a first axial hole and a second axial hole, a cylindrical sleeve disposed between two extending portions of the second body, a second positioning region connected to the sleeve, and a handle connected to an outer surface of the sleeve, wherein the first body is received in the first axial hole and the sleeve, and the guide bar is received in the second axial hole, wherein when the sleeve is rotated about the longitudinal direction by the handle, the second positioning region is detachably disposed in the first positioning region of the first element, and the second element moves between a first position and a second position along the guide bar; and

a third element disposed outside of a portion of the first and second elements and comprising a third positioning region used to position the second element, wherein the third positioning region is a slotted structure comprising a middle channel and a plurality of spaced sub-channels connected to the middle channel and located in both sides of the middle channel, wherein the handle is guided by the slotted structure, and the handle is optionally positioned in the sub-channels,

wherein the second positioning region of the second element is positioned in the first positioning region of the first element when the second element is positioned in the first position, and the second positioning region of the second element is positioned in the first positioning region of the first element when the second element is moved to the second position from the first position, wherein a distance is formed between the first position and the second position.

2. The regulating device as claimed in claim 1 , wherein the distance is a height difference.

3. The regulating device as claimed in claim 1 , wherein the third element is a hollow cylindrical member.

4. The regulating device as claimed in claim 1 , wherein the first positioning region of the first element comprises at least two recesses used to position the second positioning region of the second element.

5. The regulating device as claimed in claim 1 , wherein the second positioning region of the second element comprises a first positioning part, a second positioning part, and a resilient connecting part connected between the first positioning part and a second positioning part.

6. The regulating device as claimed in claim 5 , wherein the first positioning region comprises a first recess and a second recess, wherein the first positioning part and the second positioning part are respectively positioned in the first recess and the second recess, and when the sleeve is moved along a first direction by the handle, the first positioning part and the second positioning part are disengaged from the first recess and the second recess.

7. A display, comprising:

a base;

a panel; and

a regulating device disposed between the base and the panel, comprising;

a first element comprising a first body, a guide bar, and a first positioning region, wherein the first body is a cylindrical structure extending along a longitudinal direction, and the guide bar is parallel with the first body and extended from the base, and the first positioning region is disposed at the first body;

a second element comprising a second body having a first axial hole and a second axial hole, a cylindrical sleeve disposed between two extending portions of the second body, a second positioning region connected to the sleeve, and a handle connected to an outer surface of the sleeve, wherein the first body is received in the first axial hole and the sleeve, and the guide bar is received in the second axial hole, wherein when the sleeve is rotated about the longitudinal direction by the handle, the second positioning region is detachably disposed in the first positioning region of the first element, and the second element moves between a first position and a second position along the guide bar; and

a third element disposed outside of a portion of the first and second elements and comprising a third positioning region used to position the second element, wherein the third positioning region is a slotted structure comprising a middle channel and a plurality of spaced sub-channels connected to the middle channel and located in both sides of the middle channel, wherein the handle is guided by the slotted structure, and the handle is optionally positioned in the sub-channels,

wherein the second positioning region of the second element is positioned in the first positioning region of the first element when the second element is positioned in the first position, and the second positioning region of the second element is positioned in the first positioning region of the first element when the second element is moved to the second position from the first position, wherein a distance is formed between the first position and the second position.

8. The display as claimed in claim 7 , wherein the distance is a height difference.

9. The display as claimed in claim 7 , wherein the third element is a hollow cylindrical member.

10. The display as claimed in claim 7 , wherein the first positioning region of the first element comprises at least two recesses used to position the second positioning region of the second element.

11. The display as claimed in claim 7 , wherein the second positioning region of the second element comprises a first positioning part, a second positioning part, and a resilient connecting part connected between the first positioning part and a second positioning part.

12. The display as claimed in claim 11 , wherein the first positioning region comprises a first recess and a second recess, wherein the first positioning part and the second positioning part are respectively positioned in the first recess and the second recess, and when the sleeve is moved along a first direction by the handle, the first positioning part and the second positioning part are disengaged from the first recess and the second recess.