External spring type pump core and using method thereof
An external pump core technology, which is applied in the direction of spraying device, liquid distribution, closing, etc., can solve the problems of poor stability of liquid output and small amount of liquid output, and achieve the effect of stable liquid output, convenient assembly and good stability
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[0027] Now in conjunction with the accompanying drawings, the structure of the present invention will be further described. Such as Figure 1 to Figure 9 As shown, the pump core includes a valve stem 1, a spring 2, a valve needle 3, a bayonet seat 4, a piston 5, a pump body 6, and an elastic sleeve 7. One port of the pump body is tightly engaged with the bayonet seat, and the valve stem One end extends into the pump body through the bayonet seat, the center hole of the valve stem is sleeved and connected with one end of the valve needle in the pump body, the outer diameter of the valve stem is provided with a spring, and the two ends of the spring are respectively connected to the outer diameter of the port at the other end of the valve stem. , and the bayonet seat offset, the outer diameter of the valve needle in the pump body is provided with a piston, and the other end of the pump body is provided with a spring sleeve in the liquid inlet hole. At the same time, the valve n...
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