Clamping device

1. A clamping device, comprising:

a first clamping member, comprising a first side and a second side, wherein the first side and the second side are located on two opposite sides;

a second clamping member, comprising a third side, a fourth side and a limiting portion, wherein the third side and the fourth side are located on two opposite sides, and the limiting portion convexly disposed on the third side;

a first connecting rod, one end being pivotally disposed on the first side, and another end being pivotally disposed on the third side, wherein the limiting portion is adjacent to the first connecting rod and located below the first connecting rod, to limit a rotation angle of the first connecting rod;

a second connecting rod, one end being pivotally disposed on the second side, and another end being pivotally disposed on the fourth side; and

an elastic member, one end being connected to the third side, and another end being connected to the first connecting rod, wherein the elastic member provides a restoring force to make the first connecting rod rotate relative to the second clamping member, to drive the second connecting rod and the first clamping member to rotate, so that a distance between the first clamping member and the second clamping member is shortened to clamp an object.

2. The clamping device according to claim 1 , further comprising:

a third connecting rod, one end being pivotally disposed on the first side, and another end being pivotally disposed on the third side; and

a fourth connecting rod, one end being pivotally disposed on the second side, and another end being pivotally disposed on the fourth side.

3. The clamping device according to claim 2 , further comprising:

a first screw, penetrating the another end of the third connecting rod and being locked on the third side; and

a second screw, penetrating the another end of the fourth connecting rod and being locked on the fourth side.

4. The clamping device according to claim 2 , wherein the second clamping member further comprises a stopper convexly disposed on the third side, and the stopper is adjacent to the third connecting rod and is located above the third connecting rod, to make the third connecting rod stop at the stopper after rotation, so that the first clamping member and the second clamping member stop at an initial position.

5. The clamping device according to claim 2 , wherein an anti-rotation protruding portion is convexly disposed on a side surface of the third connecting rod facing the third side, and when the third connecting rod rotates until the anti-rotation protruding portion stops at the first clamping member, the third connecting rod stops rotating.

6. The clamping device according to claim 1 , wherein a first fixing member is convexly disposed on a side surface of the first connecting rod facing the third side, a second fixing member is convexly disposed on the third side of the second clamping member, the one end of the elastic member is fixedly disposed on the second fixing member, and the another end of the elastic member is fixedly disposed on the first fixing member.

7. The clamping device according to claim 6 , wherein a groove is concavely disposed on the third side and above the first connecting rod, and the second fixing member is disposed in the groove, so that the elastic member is parallel to the third side.

8. The clamping device according to claim 1 , wherein the first clamping member further comprises a buffer disposed between the first side and the second side, and the buffer is located on one side of the first clamping member facing the second clamping member.

9. The clamping device according to claim 1 , further comprising a sensing element, disposed on the first clamping member and facing the second clamping member, or disposed on the second clamping member and facing the first clamping member, wherein the sensing element is configured to sense elements on the object and transmitting a corresponding signal to a host.