JP3120425U - Low pressure chamber hermetic door - Google Patents

Abstract

[PROBLEMS] To seal an airtight door of a low-pressure chamber, which can be operated only from either the outside or the inside of the low-pressure chamber, both at the inside and outside of the low-pressure chamber and at low cost. It is what.
In a low-pressure chamber 1 constituted by a casing 3 and a door plate, and the casing and the door plate are hermetically sealed by packing, a shaft 6 penetrating the door plate is supported by either or both of the door plates. And a shaft sealing mechanism, and a pressing mechanism comprising a wheeled arm and an inclined plate for tightly attaching the handle 18 to both ends of the shaft and hermetically sealing the housing and the door plate on either or both sides of the door plate. It is airtight.
[Selection] Figure 4

Description

In recent years, research on the physiological significance of people in highland environments has become active. The present invention relates to a low-pressure chamber for realizing a high-altitude air pressure environment on a flat ground.

(Patent Document 1) Conventionally, in Japanese Patent Publication No. 2-42992, an exercise airtight room, in Japanese Patent Application Laid-Open No. 8-112373, a decompression training facility assuming pseudo-high-land training, and in Japanese Patent Application Laid-Open No. 11-336373, a decompression in which an athlete can stay for a long time In the facility, Japanese Patent No. 2919111 and Japanese Patent Laid-Open No. 2000-54666, a large-scale decompression training facility for exercise installed in the basement or semi-underground is proposed. It relates to the overall structure of
(Patent Document 2) In Japanese Utility Model Application Laid-Open No. 2-118571, although a decompression training facility assuming pseudo high altitude training has been proposed, this also relates to the overall structure of a large-scale low-pressure chamber on the premise of exercise. .

In the present invention, when the hermetic door of the low-pressure chamber was hermetically sealed, it was possible to operate from both the inside and outside of the low-pressure chamber, and the air-tight door was inexpensive. It is something to try.

The present invention comprises a housing and a door plate, and in a low pressure chamber in which the housing and the door plate are hermetically sealed with a packing, a shaft penetrating the door plate is provided on either or both sides of the door plate. A bearing and a shaft sealing mechanism are provided, and a handle is tightly coupled to both ends of the shaft, and the wheel plate arm and an inclined plate for pressing the door plate against the housing are arranged on either or both sides of the door plate. It is a low-pressure chamber hermetic door that is hermetically sealed by providing a pressing mechanism.

The present invention aims to improve a low-pressure chamber designed for easy and easy use of the low-pressure chamber at any time, anywhere, and to improve the quality of the low-pressure chamber in terms of safety and security. The airtight door is devised so that it can be opened and closed from both inside and outside the low pressure chamber. Since this mechanism is extremely simple, it has a great effect on reducing the production cost of the low-pressure chamber, is friendly to the earth from the viewpoint of saving resources and energy, and can be used by many people at low cost. Opened.

FIGS. 1 to 3 show an example of the configuration of the low-pressure chamber, and FIG. 4 shows an embodiment of the hermetic method for the hermetic door of the low-pressure chamber using the present invention. First, the configuration example of FIGS. 1 to 3 will be described. The low-pressure chamber 1 includes an end plate 2, a housing 3, and an airtight door 4. The airtight door 4 has a shaft 6 rotatably attached to a bearing unit 5 that is tightly coupled to the housing 3. 7 is fastened to one end of the door arm 7, and a pin bracket 8 is rotatably attached to the other end of the door arm 7. The airtight door 4 is fastened to the pin bracket 8.

Next, the airtight method of the airtight door of the low pressure chamber using the present invention of FIG. 4 will be described. The hermetic door 4 is provided with a hermetic door opening 28 and the bearing case 10 fitted with the O-ring 11 is fastened with a bolt (not shown) so as to be airtight. A shaft 12 is inserted into the bearing case 10, and bearings 13 and 14 are mounted and fixed by stop rings 15 and 16. An oil seal 17 is attached to the outdoor side of the bearing 13 so that the bearing case 10 and the shaft 12 are hermetically sealed. A handle 18 is fastened to the outer end of the shaft 12, and an arm 20 and a handle 19 to which a cam follower 23 is fastened are fastened to the other end.

Next, an airtight method for the airtight door of the low pressure chamber will be described. In order to hermetically seal the hermetic door 4 in the low-pressure chamber, first, the hermetic door 4 is pulled to the housing flange 25 and the handle 18 or 19 is rotated to connect the arm 20 to which the cam follower 23 is fastened to the housing flange 25. 27. When the handle 18 or 19 is further rotated, the cam follower 23 rotates along the inclined metal fitting 27, and the hermetic door 4 is drawn toward the housing flange 25. When the hermetic door 4 is pulled toward the housing flange 25, the packing 26 disposed on the outer periphery of the hermetic door 4 can be brought into close contact with the housing flange 25 to achieve airtightness.

The present invention aims to improve a low-pressure chamber designed for easy and easy use of the low-pressure chamber at any time, anywhere, and to improve the quality of the low-pressure chamber in terms of safety and security. The airtight door is devised so that it can be opened and closed from both inside and outside the low pressure chamber. Since the mechanism is extremely simple according to this method, there is a great effect from the reduction of the manufacturing cost of the low-pressure chamber, and a way to use the low-pressure chamber inexpensively and easily for many people for personal use or business use has been opened. In other words, industrial applicability is to install a low-pressure room in a general household and experience a high-pressure environment, or install it in a low-pressure room service shop and have an unspecified number of customers experience the high-pressure environment. Became possible.

These are elevation views illustrating a configuration example of the low pressure chamber. These are top views explaining the structural example of a low pressure chamber. These are side views explaining the structural example of a low pressure chamber. These are the sectional AA drawings explaining the airtight method of the low pressure room airtight door using the present invention. These are BB arrow drawing explaining the airtight method of the low pressure room airtight door using this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Low pressure chamber 2 End plate 3 Case 4 Airtight door 5 Bearing unit 6 Shaft 7 Door arm 8 Pin bracket 9 Bearing case 10 Bolt 11 O-ring 12 Shaft 13 Bearing 14 Bearing 15 Stop ring 16 Oil seal 17 Stop ring 18 Handle 19 Handle 20 Arm 21 Lock nut 22 Washer 23 Cam follower 24 Airtight door flange 25 Housing flange 26 Packing 27 Inclined fitting 28 Airtight door opening

Claims (1)

In a low-pressure chamber composed of a casing and a door plate, and the casing and the door plate are hermetically sealed with a packing, a shaft and a shaft seal passing through the door plate are inserted into or out of the door plate or both. A mechanism is provided, and a handle is tightly coupled to both ends of the shaft, and a pressing mechanism comprising a wheeled arm and an inclined plate for hermetically sealing the housing and the door plate on either or both sides of the door plate is airtight. Air-tight method of hermetic doors.

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