JPS6222435U

JPS6222435U -

Info

Publication number: JPS6222435U
Application number: JP11407885U
Authority: JP
Priority date: 1985-07-25
Filing date: 1985-07-25
Publication date: 1987-02-10

Description

[Brief explanation of the drawing]

第１図〜第４図はこの考案の一実施例を示し、
第１図は運転停止時の状態を示す縦断面図、第２
図は冷風侵入時の状態を示す縦断面図、第３図は
ベルマウスの前部に遮音板と閉鎖板を取付けた状
態を示す斜視図、第４図は、閉鎖板の部分斜視図
、第５図は従来例の構成を示す縦断面図である。図において、同一符号は同一または相当部分を
示し、１は隔壁、５は通風路、６はシヤツター、
１０は送風機、１４はベルマウス、１４ａは開口
部、１５は遮音板、１６は連結棒、１７は閉鎖板
である。 Figures 1 to 4 show an embodiment of this invention,
Figure 1 is a longitudinal sectional view showing the state when the operation is stopped, Figure 2
The figure is a longitudinal cross-sectional view showing the state when cold air enters, Figure 3 is a perspective view showing the state where the sound insulation plate and the closing plate are attached to the front part of the bell mouth, Figure 4 is a partial perspective view of the closing plate, and Figure 4 is a partial perspective view of the closing plate. FIG. 5 is a longitudinal sectional view showing the configuration of a conventional example. In the figures, the same reference numerals indicate the same or equivalent parts, 1 is the partition wall, 5 is the ventilation path, 6 is the shutter,
10 is a blower, 14 is a bell mouth, 14a is an opening, 15 is a sound insulating plate, 16 is a connecting rod, and 17 is a closing plate.

Claims

[Scope of Claim for Utility Model Registration] (1) A blower installed in an air passage passing through a bulkhead, a shutter for opening and closing said air passage, a bell mouth covering the outer periphery of said air blower, and a front surface of said bell mouth. A ventilation fan equipped with sound insulating plates supported at a predetermined interval, a closing plate slidably supported on a connecting rod connecting the bell mouth and the sound insulating plate and closing an opening of the bell mouth. A ventilation fan characterized by the fact that it is equipped with a ventilation fan. (2) A utility model characterized in that the closing plate is provided with a through hole through which the connecting rod passes, and protrusions that maintain the position of the closing plate are provided on the sound insulating plate side end and the bell mouth side end of the connecting rod. A ventilation fan according to claim 1.