Air blowing device, self-suction tail plug, and air blower using the tail plug

1. An air blowing device, comprising:

an airbag,

an integrated air inlet and outlet device, and

a vent valve device; wherein

one end of the airbag is provided with an opening,

a bottom end of the integrated air inlet and outlet device is provided with a connecting end matched with the opening, the connecting end is configured to fix the integrated air inlet and outlet device on the airbag;

the integrated air inlet and outlet device comprises an air inlet structure and an air outlet structure, wherein the air inlet structure and the air outlet structure are fixed to each other; a ventilation pipeline of the air inlet structure and a ventilation pipeline of the air outlet structure are independent of each other, and the ventilation pipeline of the air inlet structure and the ventilation pipeline of the air outlet structure are connected to the airbag, respectively;

the vent valve device comprises an air inlet one-way valve and an air outlet one-way valve; the air inlet one-way valve is disposed at a first position, wherein the air inlet structure is ventilated into the airbag at the first position, and the air inlet one-way valve is configured to introduce external air into the airbag unidirectionally; the air outlet one-way valve is disposed at a second position, wherein the air outlet structure is ventilated into the airbag at the second position, and the air outlet one-way valve is configured to discharge air in the airbag from an air outlet nozzle unidirectionally.

2. The air blowing device according to claim 1 , wherein a bottom end of the air inlet structure is ventilated into the airbag, the air inlet structure is hollow, and at least one strip-shaped air inlet is disposed on a surface of the air inlet structure and configured to allow the external air to enter the airbag from the at least one strip-shaped air inlet.

3. The air blowing device according to claim 1 , wherein the air outlet structure is a long-tubular-shaped ventilation pipeline, a bottom end of the air outlet structure is ventilated into the airbag, a top end of the air outlet structure is the air outlet nozzle, and the air in the airbag is blown out from the air outlet nozzle.

4. The air blowing device according to claim 1 , wherein the air inlet structure is ring-shaped and disposed around the air outlet structure.

5. The air blowing device according to claim 4 , wherein the connecting end is provided with a cavity corresponding to a shape of the vent valve device, and the cavity is configured to place the vent valve device.

6. The air blowing device according to claim 1 , wherein the connecting end is a hollow shaft, an outer surface of the connecting end is concave, and the connecting end is connected to the opening of the airbag.

7. The air blowing device according to claim 1 , further comprising: an annular filter paper; wherein the annular filter paper is disposed between a bottom of the air inlet structure and the connecting end.

8. The air blowing device according to claim 1 , wherein a bottom of the airbag is a horizontal plane.

9. The air blowing device according to claim 1 , wherein the integrated air inlet and outlet device is conical from bottom to top.

10. The air blowing device according to claim 1 , wherein the airbag is made of silicone or rubber.

11. A self-suction tail plug, comprising:

a detachable tail plug body; wherein

the detachable tail plug body is disposed at a bottom of an air blower; a suction cup is disposed at a bottom of the detachable tail plug body and is configured to adsorb and fix the air blower on a surface of an object, an outer wall at a top of the detachable tail plug body is provided with a fixed protrusion ring engaged with the bottom of the air blower, and the suction cup and the air blower are hermetically connected;

wherein a sealing protrusion ring is disposed on the outer wall of the detachable tail plug body along a circumferential direction, and the sealing protrusion ring is hermetically connected to the bottom of the air blower.

12. The self-suction tail plug according to claim 11 , wherein the detachable tail plug body is provided with an air inlet penetrating from top to bottom, a one-way valve body is disposed on the top of the detachable tail plug body, an air outlet is disposed between the one-way valve body and the detachable tail plug body, the air outlet is connected to the air inlet; and

when the air blower is inhaling, the air outlet is opened under an action of an external air pressure, air enters the air blower through the air outlet; and when the air blower is spraying, the air outlet is closed under an action of an air pressure inside the air blower.

13. The self-suction tail plug according to claim 12 , wherein a connector is disposed at an edge of the one-way valve body, and the one-way valve body is connected to the detachable tail plug body through the connector.

14. The self-suction tail plug according to claim 13 , wherein the air outlet is a slit-shaped opening formed between the detachable tail plug body and the one-way valve body.

15. The self-suction tail plug according to claim 13 , wherein the one-way valve body, the connector, and the detachable tail plug body are formed into one piece.

16. The self-suction tail plug according to claim 11 , wherein the detachable tail plug body has a cylindrical structure.

17. The self-suction tail plug according to claim 11 , wherein the suction cup is an inverted bowl-shaped structure.

18. The self-suction tail plug according to claim 11 , wherein the detachable tail plug body is made of silicone or rubber.

19. An air blower, comprising: an air blower body and the self-suction tail plug according to claim 11 , a tail plug socket connected to an internal airbag is disposed at a bottom of the air blower body, and the self-suction tail plug is connected to and matched with the tail plug socket.