Expanded screen

1 . An expanded screen, wherein the expanded screen is detachably mounted on a display; the expanded screen comprises an expanded screen main body, a first clamping member, a second clamping member, and a connection component; the connection component, the first clamping member, and the second clamping member are all arranged on the expanded screen main body; a first end of the first clamping member is provided with a first clamping portion; a first end of the second clamping member is provided with a second clamping portion; the first clamping portion and the second clamping portion are clamped on the display; a second end of the first clamping member is slidably connected to a second end of the second clamping member through the connection component; and the first clamping member and the second clamping member slide relative to each other, so that a distance between the first clamping member and the second clamping member is relatively extended or shortened;

wherein the connection component comprises a gear and a locking component; both the gear and the locking component are arranged on the expanded screen main body; the first clamping component comprises a first connection end and a first clamping end; the first clamping portion is arranged at a first end of the first clamping end, and a second end of the first connection end is fixedly connected to one end of the first clamping end; the second clamping member comprises a second connection end and a second clamping end; the second clamping portion is arranged at a first end of the second clamping end, and a second end of the second connection end is fixedly connected to one end of the second clamping end; the first connection end and the second connection end are both provided with sawteeth; the sawteeth are clamped with sawteeth of the gear; the first connection end slides relative to the second connection end through the connection component; a clamping space is formed between the first clamping portion and the second clamping portion; and the locking component is used for fixing the clamping space.

2 . The expanded screen according to claim 1 , wherein the locking component comprises an elastic member and a positioning column; the positioning column is fixedly connected to the expanded screen main body; a first end of the elastic member is connected to the positioning column, and a second end of the elastic member is connected to the first clamping member or the second clamping member; when the first clamping member and the second clamping member slide away from each other; and the elastic member enables the first clamping member and the second clamping member to be inwards tightened.

3 . The expanded screen according to claim 2 , wherein the gear comprises a first gear and a second gear; the first connection end comprises a first rack A and a first rack B; the second connection end comprises a second rack A and a second rack B; the first rack A and the second rack A are both connected to the first gear; the sawteeth of the first rack A and the sawteeth of the second rack A are both clamped with the sawteeth of the first gear; the first rack A and the second rack A slide relative to the first gear; the first rack B and the second rack B are both connected to the second gear; the sawteeth of the first rack B and the sawteeth of the second rack B are both clamped with the sawteeth of the second gear; the first rack B and the second rack B slide relative to the second gear; and when the first clamping member slides away from the second clamping member, the first clamping member drives the second clamping member to slide through the first gear and the second gear.

4 . The expanded screen according to claim 3 , wherein a first guide rail A, a first guide rail B, a second guide rail A, and a second guide rail B are arranged in the expanded screen main body; the first guide rail A is arranged on a bottom of the first rack A; the first rack A is clamped to the first guide rail A; the first rack A slides along the first guide rail A; the first guide rail B is arranged on a bottom of the first rack B; the first rack B is clamped to the first guide rail B; the first rack B slides along the first guide rail B; the second guide rail A is arranged on a bottom of the second rack A; the second rack A is clamped to the second guide rail A; the second rack A slides along the second guide rail A; the second guide rail B is arranged on a bottom of the second rack B; the second rack B is clamped to the second guide rail B; and the second rack B slides along the second guide rail B.

5 . The expanded screen according to claim 3 , wherein the first rack A is provided with a first clamping portion A; the first rack B is provided with a first clamping portion B; a first stop portion A and a first stop portion B are further arranged in the expanded screen main body; the first stop portion A and the first stop portion B are arranged between the first rack A and the first rack B; and when the first clamping member is stretched away from the expanded screen main body, the first stop portion A is clamped to the first clamping portion A, and the first stop portion B is clamped to the first clamping portion B, so as to maintain connection between the first rack A and the first gear and connection between the first rack B and the second gear.

6 . The expanded screen according to claim 5 , wherein the first clamping member is further provided with a first clamping portion C and a first clamping portion D; and when the first clamping member is tightened towards the expanded screen main body, the first stop portion A is clamped to the first clamping portion C, and the first stop portion B is clamped to the first clamping portion D, so as to maintain connection between the first rack A and the first gear and connection between the first rack B and the second gear.

7 . The expanded screen according to claim 3 , wherein a second clamping portion A is arranged on an outer side of the second rack A, and a second clamping portion B is arranged on an outer side of the second rack B; and when the second clamping member is stretched away from the expanded screen main body, an inner wall of the expanded screen main body is clamped to the second clamping portion A and the second clamping portion B to maintain connection between the second rack A and the first gear and the connection between the second rack B and the second gear.

8 . The expanded screen according to claim 7 , wherein the second clamping member is further provided with a second clamping portion C and a second clamping portion D; a second stop portion A and a second stop portion B are further arranged in the expanded screen main body; the second stop portion A and the second stop portion B are arranged between the second rack A and the second rack B; and when the second clamping member is tightened towards the expanded screen main body, the second stop portion A is clamped to the second clamping portion C, and the second stop portion B is clamped to the second clamping portion D, so as to maintain connection between the first rack A and the first gear and connection between the first rack B and the second gear.

9 . An expanded screen, wherein the expanded screen is detachably mounted on a display; the expanded screen comprises an expanded screen main body, a first clamping member, a second clamping member, and a connection component; the connection component, the first clamping member, and the second clamping member are all arranged on the expanded screen main body; a first end of the first clamping member is provided with a first clamping portion; a first end of the second clamping member is provided with a second clamping portion; the first clamping portion and the second clamping portion are clamped on the display; a second end of the first clamping member is slidably connected to a second end of the second clamping member through the connection component; and the first clamping member and the second clamping member slide relative to each other, so that a distance between the first clamping member and the second clamping member is relatively extended or shortened;

wherein the expanded screen further comprises a supporting frame; the supporting frame is arranged on a back surface of the expanded screen main body; the supporting frame is rotatably connected to the expanded screen main body; and when the expanded screen is placed on a platform, the supporting frame supports the expanded screen main body.

10 . The expanded screen according to claim 9 , wherein the expanded screen main body comprises a display device and a clamping device; the clamping device is rotatably connected to the display device; and the first clamping member, the second clamping member, the connection component, and the supporting frame are all arranged on the clamping device.

11 . The expanded screen according to claim 10 , wherein the supporting frame comprises a first supporting arm and a second supporting arm; the first supporting arm is arranged on a first side of the clamping device; the first side of the clamping device is fixedly provided with a first connection shaft; the first supporting arm is rotatably connected to the first connection shaft; the second supporting arm is arranged on a second side of the clamping device; a second connection shaft is fixedly arranged on the second side of the clamping device; the second supporting arm is rotatably connected to the second connection shaft; and the first side of the clamping device is opposite to the second side of the clamping device.

12 . The expanded screen according to claim 11 , wherein the supporting frame further comprises a first extension rod and a second extension rod; a first end of the first extension rod is arranged in the first supporting arm, and a second end of the first extension rod extends out of the first supporting arm; the first extension rod is stretched and extends along the first supporting arm; a first end of the second extension rod is arranged in the second supporting arm; a second end of the second extension rod extends out of the second supporting arm; and the second extension rod is stretched and extends along the second supporting arm.

13 . The expanded screen according to claim 12 , wherein two or more first clamping slots are formed in the first supporting arm; the first clamping slots are arranged on two sides of the first extension rod; the first clamping slots are internally provided with first balls and wrap the first balls; diameters of the first balls are greater than diameters of notches of the first clamping slots, so that the first balls are maintained in the first clamping slots; a first end of each first ball is butted with an inner wall of the notch of the corresponding first clamping slot, and a second end of the first ball is butted with a side wall of the first extension rod; two or more second clamping slots are formed in the second supporting arm; the second clamping slots are arranged on two sides of the second extension rod; the second clamping slots are internally provided with second balls and wrap the second balls; diameters of the second balls are greater than diameters of notches of the second clamping slots, so that the second balls are maintained in the second clamping slots; and a first end of each second ball is butted with an inner wall of the notch of the corresponding second clamping slot, and a second end of the second ball is butted with a side wall of the second extension rod.

14 . The expanded screen according to claim 10 , wherein the supporting frame further comprises a third supporting arm; a first end of the third supporting arm is fixedly connected to the first supporting arm, and a second end of the third supporting arm is fixedly connected to the second supporting arm; the supporting frame further comprises a third extension rod and a sliding member connected to the third extension rod; the third extension rod is arranged in the third supporting arm; first openings are formed in both a third side surface and a fourth side surface of the third supporting arm; when the third extension rod is slid, one end of the third extension rod is threaded through the first opening; a second opening is formed in a first side surface of the third supporting arm; the sliding member extends out of the second opening; and the sliding member is used for controlling the sliding of the third extension rod.

15 . The expanded screen according to claim 14 , wherein the expanded screen further comprises one or more connection interfaces and a control circuit board; the connection interfaces are arranged on a fourth side of the clamping device; a fourth side surface of the third supporting arm covers the connection interfaces; the control circuit board is arranged in the clamping device; and both the connection interfaces and the display device are electrically connected to the control circuit board.