Mobile device support

1. A mobile device support, comprising:

a supporting portion; and

a clamping assembly;

wherein the supporting portion is configured to support a mobile device, a first part of the clamping assembly is configured to support the supporting portion, a second part of the clamping assembly is assembled on a mounting object, the clamping assembly comprises a supporting column and a sleeve, the sleeve is movably sleeved on the supporting column, a first end of the supporting column is connected to the supporting portion, a connecting plate is disposed at a second end of the supporting column, a first clamping plate is disposed on one side, distal from the supporting column, of the connecting plate; and a second clamping plate is disposed between the sleeve and the first clamping plate; the sleeve is configured to push the second clamping plate; and

the second clamping plate, the first clamping plate, and the connecting plate form a clamping space; the mounting object is clamped in the clamping space, an axial extension line of the supporting column penetrates through the clamping space, and when a position of the sleeve on the supporting column is adjusted, a size of the clamping space is adjusted accordingly;

internal threads are defined in the sleeve, and external threads matched with the internal threads are defined on a side surface of the supporting column;

the sleeve and the second clamping plate are rotatably connected, a guide portion is disposed between the connecting plate and the second clamping plate, and when the sleeve slides and spirally rotates, the guide portion is configured to prevent the second clamping plate from rotating, so the second clamping plate moves along an axial direction of the connecting plate.

2. The mobile device support according to claim 1 , wherein a first part of the guide portion is a guide groove formed in one side, distal from the clamping space, of the connecting plate; and a second part of the guide portion is a guide block disposed on the second clamping plate and matched with the guide groove.

3. The mobile device support according to claim 1 , wherein an annular protrusion is disposed on an inner side surface, close to the second clamping plate, of the sleeve; a frame body extending into the sleeve is disposed on the second clamping plate, and an annular clamping ring matched with the annular protrusion is disposed on the frame body.

4. The mobile device support according to claim 1 , wherein the supporting column is an asterisk-shaped pipe.

5. The mobile device support according to claim 4 , wherein a connecting component is disposed between the asterisk-shaped pipe and the supporting portion, a first part of the connecting component is attached to the supporting portion, and a second part of the connecting component is detachably assembled with the asterisk-shaped pipe.

6. The mobile device support according to claim 5 , wherein a screw hole is defined on a central position of the connecting component, a threaded hole matched with the screw hole is defined on a central position of the asterisk-shaped pipe, and a damping shaft assembled with the supporting portion is disposed on the connecting component.

7. The mobile device support according to claim 6 , wherein a surface, distal from the clamping space, of the connecting plate is an arc-shaped surface; and a radian of the arc-shaped surface is matched with a radian of a cross section of the sleeve.

8. A mobile device support, comprising:

a supporting portion; and

a clamping assembly;

wherein the supporting portion is configured to support a mobile device, a first part of the clamping assembly is configured to support the supporting portion, a second part of the clamping assembly is assembled on a mounting object, the clamping assembly comprises a supporting column and a sleeve, the sleeve is movably sleeved on the supporting column, a first end of the supporting column is connected to the supporting portion, a connecting plate is disposed at a second end of the supporting column, a first clamping plate is disposed on one side, distal from the supporting column, of the connecting plate; and a second clamping plate is disposed between the sleeve and the first clamping plate; the sleeve is configured to push the second clamping plate;

the second clamping plate, the first clamping plate, and the connecting plate form a clamping space; the mounting object is clamped in the clamping space, an axial extension line of the supporting column penetrates through the clamping space, and when a position of the sleeve on the supporting column is adjusted, a size of the clamping space is adjusted accordingly;

the supporting column is an asterisk-shaped pipe;

a connecting component is disposed between the asterisk-shaped pipe and the supporting portion, a first part of the connecting component is attached to the supporting portion, and a second part of the connecting component is detachably assembled with the asterisk-shaped pipe;

a screw hole is defined on a central position of the connecting component, a threaded hole matched with the screw hole is defined on a central position of the asterisk-shaped pipe, and a damping shaft assembled with the supporting portion is disposed on the connecting component.