A short and small continuous sprayer, including a spray head, where the spray head is connected to a valve rod, the valve rod is provided with a retaining cavity, the retaining cavity is provided with an upper spring, the upper spring is connected to a piston, a valve needle is arranged in the piston and sleeved on the valve rod, an inner cavity is formed between the piston and the valve needle, the piston is sleeved with a cylinder body, a liquid cavity is formed between the cylinder body and the piston, the cylinder body is connected to a lower spring, the lower spring is connected to the valve needle, the cylinder body is provided with a moving cavity, and a steel ball is arranged in the moving cavity.

The spray head capable of spraying continuously comprises a main body having a liquid passage; a head cap; a spray one-way valve; an operating handle; and a pump. The liquid passage comprises a transverse passage and a vertical passage which communicate with each other. A pressure continuation sealing seat capable of moving up and down is disposed inside a sleeve, a pressure continuation chamber is defined on a top of the pressure continuation sealing seat. The pressure continuation spring is supported between the pressure continuation spring seat and the pressure continuation sealing seat, driving the pressure continuation sealing seat to move upward so as to continuously extrude liquid in the pressure continuation chamber out to the transverse passage. The present invention is simple and reasonable in structure, convenient to assemble, low in cost without additional housing disposed outside the main body, and good in universality.

The spray head capable of spraying continuously comprises a main body having a liquid passage; a head cap; a spray one-way valve; an operating handle; and a pump. The liquid passage comprises a transverse passage and a vertical passage which communicate with each other. A pressure continuation sealing seat capable of moving up and down is disposed inside a sleeve, a pressure continuation chamber is defined on a top of the pressure continuation sealing seat. The pressure continuation spring is supported between the pressure continuation spring seat and the pressure continuation sealing seat, driving the pressure continuation sealing seat to move upward so as to continuously extrude liquid in the pressure continuation chamber out to the transverse passage. The present invention is simple and reasonable in structure, convenient to assemble, low in cost without additional housing disposed outside the main body, and good in universality.