JPH02109229U

JPH02109229U -

Info

Publication number: JPH02109229U
Application number: JP1763789U
Authority: JP
Priority date: 1989-02-16
Filing date: 1989-02-16
Publication date: 1990-08-31

Description

[Brief explanation of drawings]

第１図、第２図は本考案の実施例を示し、第１
図イは管接続部閉状態の要部の縦断面図、第１図
ロは管接続部開状態の要部の縦断面図、第２図は
斜視図であり、第３図は本考案の別実施例を示す
要部の縦断面図である。５……通風路形成部材、Ｐ……圧力計、Ｐａ…
…対象圧力取出管、Ａ……通風路、６……フイル
タ、７……管接続部、８……連通路、９……導圧
管、１１……弁。 Figures 1 and 2 show embodiments of the present invention;
Figure A is a longitudinal cross-sectional view of the main part of the pipe connection in the closed state, Figure 1B is a longitudinal cross-section of the main part of the pipe connection in the open state, Figure 2 is a perspective view, and Figure 3 is a cross-sectional view of the main part of the pipe connection in the open state. FIG. 7 is a vertical cross-sectional view of main parts showing another embodiment. 5... Ventilation path forming member, P... Pressure gauge, Pa...
...Target pressure take-off pipe, A...Ventilation path, 6...Filter, 7...Pipe connection section, 8...Communication path, 9...Pressure pipe, 11...Valve.

Claims

[Claims for Utility Model Registration] 1. The ventilation passage forming member 5 is equipped with a pipe connection part 7 for connecting the target pressure extraction pipe Pa of the pressure gauge P to the ventilation passage A by inserting and connecting it freely. A ventilating passage pressure extraction part structure in which the connecting part 7 is provided with an opening/closing means for opening/closing the communicating passage 8 between the pipe connecting part 7 and the ventilation passage A, and the opening/closing means is biased to close. A pressure extraction part structure in an air passageway in which a valve 11 is reversibly held open against bias by being inserted into the pipe connection part 7 of the target pressure extraction pipe Pa. 2. The ventilation passage pressure extraction part structure according to claim 1, wherein the pipe connection part 7 is provided at the other end of the impulse pipe 9 which is connected at one end to the ventilation passage forming member 5 in a state in which the pipe connection part 7 communicates with the ventilation passage A. . 3. The ventilation passage pressure extraction structure according to claim 1 or 2, wherein the ventilation passage forming member 5 is a filter case containing an air conditioning filter 6 therein.