Sprayer

A sprayer, comprising a spraying part;

• wherein the spraying part comprises a spraying head, a first water-air adjusting part, a second water-air adjusting part, a spraying needle, a control block, and a water tank;
• a water-air channel is disposed on the spraying head, and the spraying head comprises a spraying end;
• the water-air channel penetrates through the spraying head, the water-air channel extends from the spraying end to one end of the spraying head, and the one end of the spraying head is distal to the spraying end;
• a first water channel, a first air channel, and a first spraying needle channel are disposed on the first water-air adjusting part;
• the first water channel intersects with the first spraying needle channel in a first control channel;
• an air inlet hole is disposed on the first water-air adjusting part, the air inlet hole is communicated with the first water channel and the first spraying needle channel;
• the first water channel is communicated with the water tank, and water in the water tank, driven by gravity, enters the first water channel;
• a second water channel and second air channels are disposed on the second water-air adjusting part;
• the second water-air adjusting part is connected with the spraying head, the second water channel is communicated with the spraying end, a third air channel is formed between the second water-air adjusting part and the spraying head, and the second air channels are communicated with the third air channel;
• the second water-air adjusting part is connected with the first water-air adjusting part, the first air channel is communicated with the second air channels, and the first water channel is communicated with the second water channel;
• water in the first water channel passes through the second water channel to reach the spraying end, and air in the first air channel passes through the second air channels and the third air channel in sequence to reach the spraying end;
• and
• the spraying needle passes through the first control channel and the second water channel in sequence to reach the spraying end;
• the spraying needle is connected with the control block, a second control channel is disposed on a position of the second water channel close to the spraying end;
• when the spraying needle is inserted into the second control channel, the spraying needle is fitted in with an inner wall of the second control channel to block the water passing through the second control channel, meanwhile, the control block blocks the air inlet hole, and the water in the water tank is separated from the atmospheric pressure;
• when the spraying needle is separated from the second control channel, the control block is distal to the air inlet hole, the water in the water tank is communicated with the atmospheric pressure, and the water reaches the spraying end through the second control channel.