The invention discloses a novel waterproof electric vacuum pump. The novel waterproof electric vacuum pump comprises a vacuum pump main body, a rotating wheel, a pump cover and a one-way valve, wherein the one-way valve comprises an outer shell, a plunger valve element, a reset spring and a sealing block; one end of the outer shell is in sealed connection with an exhaust pipe; a limiting plate is arranged on the inner side wall of one end, close to the exhaust pipe, of the outer shell; a through hole is formed in the limiting plate; the sealing block is arranged at the other end of the outer shell; an exhaust channel corresponding to the through hole is formed in the middle of the sealing block; the two ends of the plunger valve element are arranged in the through hole and the exhaust channel separately; a sealing plate is arranged on the side wall of the plunger valve element; and a reset spring is arranged between the sealing plate and the sealing block, and the reset spring is used for making the sealing plate abut against the limiting plate, so that the through hole can be sealed. According to the novel waterproof electric vacuum pump, the problem that condensation water or water flow in a vacuum pump motor enters the vacuum pump from an exhaust port of the vacuum pump, so as to damage the electric vacuum pump can be effectively avoided.
本发明公开了一种新型防水电动真空泵,包括真空泵主体、转轮、泵盖以及单向阀,单向阀包括外壳体、柱塞阀芯、复位弹簧以及密封块,外壳体的一端与排气管密封连接,且外壳体靠近排气管的一端内侧壁上设有限位板,限位板上开设有通孔,密封块设置在外壳体的另一端,且密封块的中间部位设有与通孔相对应的排气通道,柱塞阀芯的两端分别设置在通孔内和排气通道内,且柱塞阀芯的侧壁上设有密封板,密封板与密封块之间设有复位弹簧,复位弹簧用于将密封板与限位板相抵,以使得将通孔封闭。本发明可有效避免真空泵电机内部出现凝露水或水流从真空泵排气口进入真空泵内,从而损坏电动真空泵的问题。
Novel waterproof electric vacuum pump
一种新型防水电动真空泵
2022-01-21
Patent
Elektronische Ressource
Chinesisch
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