| 摘要 |
A piston of a high-tension pump is provided to have the maintenance and repair of the piston are facilitated and to keep the water pressure uniform. A piston of a high-tension pump comprises a piston body(1), a V packing(2), a lubricated ring(4), a coupling ring(5) and a fixing ring(6). The V packing and the lubricated ring are successively inserted in the piston body. The coupling ring and fixing ring are successively assembled. The piston body additionally includes a water path(14a) on a front and rear wall part(A) and a water outlet(15) on the circumferential surface the central site. The water exit is connected to a water tub furnace. The V packing alternately performs the sealing motion according to the progressive direction of a piston axis to keep the water pressure power of the high-tension pump high. The elasticity of V packing is reinforced by tightening the coupling ring and the fixing ring. The replace of V packing is facilitated since the fixing ring and the coupling ring are separated from the piston body in replace.
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