JPS63156996U

JPS63156996U -

Info

Publication number: JPS63156996U
Application number: JP4936087U
Authority: JP
Priority date: 1987-03-31
Filing date: 1987-03-31
Publication date: 1988-10-14

Description

[Brief explanation of drawings]

第１図乃至第４図は本考案に係るものであつて
、第１図は通気管ユニツトの実施例を示す半縦断
側面図、第２図は第１図の通気管ユニツトに使用
する防塵フイルターの平面図、第３図は別態様の
実施例を示す半縦断側面図、第４図はさらに別態
様の実施例を示す半縦断側面図である。第５図乃
至第７図は従来例に係るものであつて、第５図は
貯水タンクに設けられた従来の通気構造を一部を
切り欠いて示す要部斜視図、第６図は従来の通気
管ユニツトを示す半縦断側面図、第７図は通気管
のフランジ部の平面図である。１…通気管ユニツト、２…キヤツプ、３…通気
管、１０…防塵フイルター、２０…フランジ部、
２２…防虫フイルター、３１…外気側開口端部、
４０…通気間隙。 1 to 4 are related to the present invention, in which FIG. 1 is a half-longitudinal side view showing an embodiment of the ventilation pipe unit, and FIG. 2 is a dustproof filter used in the ventilation pipe unit of FIG. 1. FIG. 3 is a semi-longitudinal side view showing an embodiment of another aspect, and FIG. 4 is a semi-longitudinal side view showing an embodiment of still another aspect. 5 to 7 relate to conventional examples, in which FIG. 5 is a partially cutaway perspective view of a conventional ventilation structure provided in a water storage tank, and FIG. 6 is a conventional ventilation structure. FIG. 7 is a semi-longitudinal side view showing the vent pipe unit, and a plan view of the flange portion of the vent pipe. 1...Vent pipe unit, 2...Cap, 3...Vent pipe, 10...Dust filter, 20...Flange part,
22...Insect filter, 31...Outside air side opening end,
40...Ventilation gap.

Claims

[Scope of utility model registration request]

A vent pipe unit attached to a water storage tank to communicate between the inside of the tank and outside air, the vent pipe being attached to the tank and the open end of the vent pipe on the outside air side forming a ventilation gap. A vent pipe unit characterized by comprising a cap attached to the tank, a coarse insect-proof filter provided on the outside air side of the ventilation path, and a fine-mesh dust-proof filter provided on the inside side of the tank in the ventilation path.