JPS6153508B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a safe emergency ventilation system that does not turn on power inside a vault.

In order to let fresh air into the safe if someone is accidentally locked inside, it is normally sealed, but an emergency emergency room is installed that allows communication between the outside and the inside of the safe by operating from inside the safe. Ventilation devices are already known.

Generally, safes store items that cannot be destroyed by fire under any circumstances, and for this reason, anything that could cause a fire should not be brought into or placed inside the safe. However, in order to respect human life in an emergency, the emergency ventilation system mentioned above is usually kept energized at all times. That is, in the past, at least the indicator light for indicating the location of the emergency ventilation system and the intake fan installed inside the vault of the emergency ventilation system had to be energized at all times. Therefore, vaults equipped with previously known emergency ventilation systems could not be said to be sufficiently safe from fire.

In view of the above points, the present invention has been made with the purpose of proposing a new emergency ventilation system in which no power is supplied to the inside of the refrigerator, and there is no risk of fire occurring due to electrical leakage. A light source is installed on the outside of the safe, the outside end of a light fiber provided by penetrating the wall of the safe is opposed to the light source, and the light from the light source is passed through the optical fiber to the inside end of the optical fiber. In addition to providing a location indicator light, an air supply pipe and an exhaust pipe are provided that pass through the wall of the vault, and a fan that communicates with either the air supply pipe or the exhaust pipe is installed on the outside of the vault wall. A shutter for blocking at least one of the air supply pipe and the exhaust pipe is installed on the outside of the refrigerator, and the opening/closing operation of the shutter is mechanically linked to the operation of a manual operation handle provided on the inside of the refrigerator. The present invention is characterized in that a switch for sensing the opening operation of the shutter is provided facing the shutter, and the operation of the switch starts the fan. The details of the present invention will be explained below based on preferred embodiments shown in the drawings.

In the figure, 1 is the wall of the vault, with an inner box 2 on the inside and an outer box 3 on the outside.
is provided. 4 is a light source installed inside the box 3 outside the refrigerator, and uses a normal electric light for illumination. Further, reference numeral 5 denotes an optical fiber, which passes through a through hole 6 formed in the wall 1, and has its outer end 7 facing the light source 4, while passing the optical fiber 5 through its inner end 8. A location indicator light 9 for displaying light from a light source is provided, and this location indicator light 9 is exposed on the surface of the box 2 inside the refrigerator. That is, this location indicator light 9 indicates the location of the emergency ventilation system within the vault.

The wall 1 has an air supply pipe 1 passing through the wall 1.
In the illustrated embodiment, the air supply pipe 10 is located above the exhaust pipe 11, but the air supply pipe 10 does not necessarily have to be located above the exhaust pipe 11. An air supply fan 12 is installed in the outside box 3 so as to communicate with the outside end of the air supply pipe 10.

A pair of bearing members 13 and 14 are fixed facing each other with a gap 15 in a position facing the exhaust pipe 11 in the outside box 3. Matching through holes 16, 17 are formed on the top (not shown). 18
The shutter is made of a protective material and has a central shaft 19, which is connected to the bearing members 13 and 1.
4 and is rotatably positioned in the gap 15 between these bearing members 13 and 14, and a through hole 20 is similarly formed at the eccentric position, so that when the shutter 18 rotates, The through hole 20 is made to match with the through holes 16 and 17 and the exhaust pipe 11, and the through hole 20 is arranged to match the through hole 16, 17 and the exhaust pipe 11.
A shutter 18 cuts off the space between the through holes 16 and 17 at a position that does not coincide with the openings 6 and 17, thereby cutting off communication between the inside and outside of the refrigerator via the exhaust pipe 11. This shutter 18 is formed with an arc-shaped guide groove 21 centered on the central axis 19, and a regulating pin 22 interposed in this guide groove is fixed to the bearing member 13. engages with the end of the groove 21;
The through hole 20 is arranged to match the other through holes 16 and 17 at a position where the shutter 18 can no longer rotate. And at that position, press the micro switch 2.
3 works to start the fan 12. Further, a tooth profile 24 is formed on the outer periphery of the shutter 18, and the shutter 18 is rotated by rotating a gear 25 that meshes with the tooth profile 24. Although the illustrated shutter 18 is shown as rotating around the central axis 19, it is not necessarily limited to rotating, and may be, for example, sliding up and down.

Furthermore, in the figure, reference numeral 26 denotes an air supply valve seat fixedly installed at the internal end of the air supply pipe 10, and an air supply valve stopper 27 made of a protective material is fitted into the air supply valve seat 26 to seal the air supply pipe 10. It is designed to cut off communication between the two. For this purpose, a rotating screw shaft 28 passing through the air supply pipe 10
is provided, and the air supply valve stopper 27 is screwed onto this rotating screw shaft 28. In the figure, 29 and 30 are bearing members of the rotating screw shaft 28, and the bearing members 29,
Chain wheels 31 and 32 are respectively fixed to both ends of a rotating screw shaft 28 protruding from a rotating screw shaft 30.A guide 33 is installed between the air supply valve seat 26 and the bearing member 29, and this guide rod 33 is connected to the air supply valve seat 26 and the bearing member 29. Valve stopper 2
The air supply valve plug 27 is passed through the guide hole 34 formed in the air supply valve seat 26 to guide the fitting and disengagement of the air supply valve plug 27 into the air supply valve seat 26 and to prevent rotational displacement of the air supply valve plug 27.

In addition, 35 in the figure is a protruding portion 11' of the exhaust pipe 11 on the inside side of the refrigerator.
It is a protective stopper screwed onto a threaded portion 36 formed in
It is designed so that it can be sealed tightly.

Furthermore, 39 in the figure is a handle, which is attached to box 2 inside the refrigerator.
A chain wheel 41 is fixedly attached to the handle shaft 40, and this chain wheel 4
1 and the chain wheel 31 of the rotating screw shaft 28. On the other hand, chain wheels 45 and 46 are provided at both ends of a rotating shaft 44 that is supported by a bearing member 43 inside the outer box 3 of the refrigerator, and a chain wheel 48 is also attached to the other end of the rotating shaft 47 of the gear 25. Between the chain wheel 32 and the chain wheel 45 at the outer end of the rotating screw shaft 28 and the chain wheel 4
Chains 49 and 50 are stretched between the shutters 6 and 48, respectively, and the shutter 18 and the air supply valve plug 27 are synchronously opened and closed by rotating the handle 39.

In addition, 51 in the figure is a flashlight.

The other embodiment shown in FIG. 5 is smaller than the one shown in FIGS. 1 to 4, and the members shown with the same reference numerals as in FIGS. 1 to 4 are the same members. The handle 39 is directly attached to the rotating screw shaft 28.

In the emergency ventilation system of the present invention having such a configuration, under normal conditions, the air supply valve plug 27 is sealed and the shutter 18 is closed. (In order to make it easier to understand the open state of the shutter 18, the open state is shown in the drawing.) The power is led only into the box 3 outside the refrigerator, and is not introduced into the box 2 inside the refrigerator at all. In the normal state, the fan 12 is stopped and only the light source 4 emits light. The light from this light source 4 is transmitted through the optical fiber 5.
The location indicator light 9 is made to emit light through the location indicator light 9.

Therefore, when a person is locked inside a vault,
The location indicator light 9 allows the location of the emergency ventilation system to be known, and the flashlight 51 can illuminate the inside of the vault. When the handle 39 is rotated, the rotating screw shaft 28 connected by the chain 42 rotates, and the air supply valve stopper 27 is moved to the imaginary line position in FIG. 3 to open the air supply pipe 10. At the same time, the chain wheel 32, chain 49,
The gear 25 is rotated via the chain wheels 45, 46, the chain 50, and the chain wheel 48, and the shutter 18 is rotated to the position shown in FIG.
The through hole 2 is stopped by the regulating pin 22.
0, 17, 16 and the exhaust pipe 11 communicate with each other. At the same time, the micro switch 23 operates to operate the fan 12 and supply fresh air from outside the refrigerator to the interior of the refrigerator from the open air supply pipe 10. Handle 3 behind there
If the guard flap 35 is removed from the exhaust pipe 11 by the rotation operation 7, the exhaust pipe 11 also communicates the inside and outside of the refrigerator, and the air inside the vault can be discharged to the outside.

As mentioned above, in the device of the present invention, the light from the light source installed on the outside of the refrigerator passes through an optical fiber and is displayed by the location indicator light installed on the inside of the refrigerator. Since it is installed in the refrigerator, there is no need to conduct any electricity inside the refrigerator, which has the advantage of completely eliminating the risk of a fire occurring inside the refrigerator due to electrical leakage or the like. In addition, a shutter is installed on the outside of the refrigerator to shut off at least one of the air supply pipe and the exhaust pipe, and the opening/closing operation of this shutter is mechanically linked to the operation of a manual operation handle provided on the inside of the refrigerator. A switch that detects the opening operation of the shutter is provided facing the shutter, and the fan is activated by the operation of this switch, so that the inside of the refrigerator does not need to be provided with any current-carrying parts. It was possible to operate the emergency ventilation system by operating the
It has the effect of increasing its safety.

[Brief explanation of the drawing]

The drawings show a preferred embodiment of the device of the present invention; FIG. 1 is an overall sectional view thereof, FIG. 2 is an enlarged sectional view showing the shutter portion, FIG. 3 is an enlarged sectional view showing the air supply valve portion, and FIG. FIG. 4 is an enlarged sectional view showing the protection plug portion of the exhaust pipe, and FIG. 5 is an overall sectional view showing another embodiment. 1...Wall body, 4...Light source, 5...Optical fiber, 7...
Outer end of the refrigerator, 8...Inner end of the refrigerator, 9...Location indicator light, 10...Air supply pipe, 11...Exhaust pipe, 12...Fan, 18...Shutter, 23...Switch, 39...Handle.

Claims (1)

[Claims] 1. A light source is installed on the outside of the safe, the outside end of an optical fiber provided by penetrating the wall of the safe is opposed to the light source, and the light from the light source is displayed through the optical fiber at the inside end of the optical fiber. An air supply pipe and an exhaust pipe are provided that pass through the wall of the vault, and a fan that communicates with either the air supply pipe or the exhaust pipe is installed on the outside of the vault wall. A shutter for blocking at least one of the air supply pipe and the exhaust pipe is installed on the outside of the refrigerator, and the opening/closing operation of the shutter is mechanically linked to the operation of a manual operation handle provided on the inside of the refrigerator. An emergency ventilation system in which no power is turned on inside the refrigerator, characterized in that a switch is provided facing the shutter to detect the opening operation of the shutter, and the fan is started by the operation of the switch.