JPS6236019Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a ventilation room 3 of an agricultural warehouse, which has a suction duct 1 in the lower part and a discharge duct 2 in the upper part, in which the upper and lower sides of the communication chamber 4 of both the ducts 1 and 2 communicate with the outside air. Windows 5 and 6 are provided, and the lower edge of an upper window opening/closing plate 7 that opens to the outside of the window 5 is pivotally supported on the lower edge of the upper window 5,
The upper edge of the lower window opening/closing plate 8 that opens to the outside of the same window 6 is pivoted to the upper edge of the lower window 6, and the opening/closing levers 9, 9 of the opening/closing plates 7, 8 are attached to the side of the ventilation room 3 with a support shaft 10. The upper ends of the ramrods 9, 9 are connected to the opening/closing plates 7, 8, respectively, by connecting rods 11, 11, and the ramrods 9, 9 are each provided with a self-holding device 12, and a communication chamber is provided. 4 is provided on the window opening/closing plate 8, and the passage opening/closing plate 17 is installed on the window opening/closing plate 8 so that when the same window opening/closing plate 8 is opened, the passage opening/closing plate 17 closes the passage between the upper and lower windows 8, 6. This invention relates to an agricultural warehouse ventilation system installed in A suction duct 1 is provided along the floor of the warehouse, and a discharge duct 2 is provided on the ceiling side, both of which are porous ducts. In the ventilation room 3, a cooler 15 is installed on the exhaust duct 2 side, exhaust blowers 16, 16 are installed on the suction duct 1 side,
The passage opening/closing plate 17 is formed by extending the upper edge of the lower window opening/closing plate 8 toward the communication chamber 4 side. When the lower window opening/closing plate 8 is opened, the passage opening/closing plate 17 closes the passage (FIG. 4 shows its state). ), and when the lower window opening/closing plate 8 is closed, the communication chamber 4 is opened (the state is shown in FIG. 3). The self-holding device 12 is formed by fixing an arc-shaped friction plate 13 centered on a support shaft 10 to the side surface of the ventilation chamber 3, and pressing a protrusion 14 provided on the above-mentioned lever 9 via a spring 18 with the force of the spring 18. be done. In the figure, 19 indicates the concrete wall of the warehouse, and 20 indicates the shed of the ventilation room 3.

Therefore, when the levers 9, 9 are grasped and rotated around the support shaft 10 to the position shown in FIG. 3, the levers 9, 9 and the opening/closing plates 7, 8 are self-maintained in the closed position. The upper and lower opening/closing plates 7, 8 close the upper and lower windows 5, 6, and the passage opening/closing plate 17 opens to communicate the two ducts 1, 2 through the communication chamber 4, and the discharge blowers 16, 16 and By operating the cooler 15, the air sucked from the suction duct 1 is cooled and cooled air is sent into the warehouse from the discharge duct 2. When the levers 9, 9 are grasped and rotated around the support shaft 10 to the position shown in FIG. It opens outward to the position shown in FIG. 4 and is self-maintained at that position, while the passage opening/closing plate 17 closes the communication chamber 4. In this state, the air discharged from the suction duct 1 by the discharge blowers 16, 16 is discharged to the outside from the lower window 6, and the early morning cold air outside is discharged from the upper window 5 into the discharge duct 2 by the suction blower in the cooler 15. The early morning cold air is discharged to the ceiling and lowers the temperature inside the refrigerator.

Conventionally, when opening and closing the upper and lower windows 5 and 6, the heavy opening and closing plates 7 and 8 were opened and closed directly by hand, which required time and effort, and the upper opening and closing plate 7 was forced outward by its own weight. This would have been very dangerous as it could easily fall and hit someone's head, resulting in personal injury.However, since this project was constructed as described above, the levers 9, 9, which were pivoted on the sides of the ventilation room 3, could be manually operated. As a result, the windows 5 and 6 can be easily opened and closed, and the opening and closing plates 7 and 8 can self-maintain the open and closed positions, so they are safe and can be opened and closed quickly and easily.
This has the advantage that the communication path between the upper and lower windows 5 and 6 can be automatically opened and closed in conjunction with the opening and closing of the window.

[Brief explanation of the drawing]

Figure 1 shows an agricultural warehouse equipped with the proposed ventilation system, Figure 2 is a front view of the ventilation system, Figure 3 is a vertical sectional view of Figure 2, and Figure 4 shows the upper and lower windows in the open state. The longitudinal sectional view, FIG. 5, shows the self-holding device. 1... Suction duct, 2... Discharge duct, 3...
Ventilation room, 4... Communication room, 5, 6... Window, 7, 8...
...Upper and lower window opening/closing plate, 9...Opening/closing lever, 10...
Support shaft, 11... Connecting rod, 12... Self-holding device, 1
3... Arc-shaped friction plate, 14... Protrusion, 17... Passage opening/closing plate.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a ventilation room 3 of an agricultural warehouse, which has a suction duct 1 at the bottom and a discharge duct 2 at the top, outside air is supplied above and below the communication chamber 4 between the two ducts 1 and 2. , an upper window opening/closing plate 7 which opens to the outside of the upper window 5 is pivotally supported, a lower window opening/closing plate 8 which opens to the outside of the lower window 6 is pivotally supported, and both opening/closing plates 7, 8 are provided. The opening/closing levers 9, 9 are pivotally supported on the side of the ventilation room 3 by a support shaft 10, and the upper ends of the levers 9, 9 are connected to the opening/closing plates 7, 8, respectively, with rods 11, 11.
A self-holding device 12 is provided on each of the levers 9, 9, and a passage opening/closing plate 17 for the communication chamber 4 is provided on the window opening/closing plate 8, so that when the window opening/closing plate 8 is opened, the passage opening/closing plate This agricultural warehouse ventilation system includes a passage opening/closing plate 17 provided on the window opening/closing plate 8 so as to close the passage between the upper and lower windows 5 and 6. (2) The agricultural warehouse ventilation system according to claim 1, wherein the self-holding device 12 is formed so that the protrusion 14 provided on the ram 9 is pressed against an arc-shaped friction plate 13 centered on the support shaft 10.