JP4831289B2 - Valve mechanism and steam sterilizer - Google Patents

Description

  The present invention relates to a valve mechanism capable of preventing an increase in pressure in a container capable of performing steam sterilization, and a steam sterilization apparatus including the container and the valve mechanism.

  In general, a steam sterilization apparatus 1P such as a tower in the case of steam sterilizing a filler, as shown in FIG. 6, includes a container 2P for storing an object to be sterilized, and a steam generated by the steam generator in a container 2P. A steam introduction pipe 61P for introducing the gas into the inside and an exhaust pipe 62P for discharging the sterilized gas from the container 2P are provided.

  A steam introduction valve 71P is provided in the middle of the steam introduction pipe 61P, and an exhaust valve 72P is provided in the middle of the exhaust pipe 62P. By opening the steam introduction valve 71P, the steam introduction valve 61P is provided in the main body 2P. By introducing steam and opening the exhaust valve 72P, the sterilized gas is discharged from the container 2P through the exhaust pipe 62P.

  However, in the steam sterilization apparatus 1P as described above, since the steam introduction valve 71P and the exhaust valve 72P are provided independently, if the exhaust valve 72P may not open due to trouble or the like, The pressure may increase. Therefore, it is necessary to give a certain pressure resistance to the container 2P itself, which not only increases the manufacturing cost but also requires regular inspection after installation.

  Therefore, there has been a demand for a steam sterilization apparatus that can reliably prevent an increase in pressure in the container even when steam is introduced.

  The present invention has been made in view of the actual situation as described above, and has a simple structure that can reliably prevent an increase in pressure in the steam sterilization container, and a steam sterilization apparatus including such a valve mechanism. The purpose is to provide.

In order to achieve the above object, firstly, the present invention is a valve mechanism capable of preventing an increase in pressure in a container capable of performing steam sterilization, and a steam introduction path communicating with the inside of the container; A first valve body that opens and closes the steam introduction path; an exhaust path that communicates with the interior of the container; and a second valve body that opens and closes the exhaust path, the first valve body and the second valve body. A valve mechanism for a steam sterilization container is provided which is connected to each other and operates integrally ( Invention 1).

  In addition, the container in this specification is not necessarily limited to the container which mainly aims at performing steam sterilization. Moreover, the steam in this specification is not limited to water vapor.

According to the above invention ( Invention 1), since the first valve body and the second valve body are connected to each other and operate integrally, the steam introduction path is opened by the first valve body and the steam is discharged into the container. When the gas is introduced into the container, the exhaust path is also opened by the second valve body, so that an increase in pressure in the container is reliably prevented.

In the above invention ( Invention 1), in the middle of the steam introduction path, a first abutting portion capable of closing the steam introduction path when the first valve body abuts is formed, In the middle of the exhaust path, a second abutting portion capable of closing the exhaust path by contacting the second valve body is formed, and the first valve body and the second valve are formed. The body is connected to each other by a connecting member, and when the connecting member is operated in one direction, the first valve body and the second valve body are respectively brought into first contact with the steam introduction path. When the connecting member is moved in the other direction, the first valve body and the second valve body are respectively separated from the first inlet of the steam introduction path. It may be adapted to abut against the second abutment portion of the contact portion and the exhaust passage (invention 2 .

In the said invention ( invention 2), the said 1st valve body and the said 2nd valve body have a substantially plate shape, The peripheral part of the said 1st valve body and the peripheral part of the said 2nd valve body However, it is preferable that they respectively contact the first contact portion of the steam introduction passage and the second contact portion of the exhaust passage ( Invention 3).

Moreover, in the said invention ( invention 1), the said steam introduction path and an exhaust path are formed in the block member, The column-shaped space part which penetrates the said steam introduction path and an exhaust path is formed in the said block member. The first valve body and the second valve body are integrally formed or connected as a cylindrical valve member that is rotatably inserted into the cylindrical space portion of the block member, The valve member is formed with a steam introduction hole and an exhaust hole penetrating in the radial direction, and the valve member rotates the steam introduction path and the exhaust path of the block member by rotating the valve member. A state of shutting off and a state in which the steam introduction hole and the exhaust hole of the valve member communicate with the steam introduction path and the exhaust path of the block member respectively appear, and the steam introduction hole of the valve member is a steam introduction path of the block member Ream When you are the exhaust hole of the valve member which may be adapted to communicates with the exhaust passage of said block member (invention 4).

  Note that the number of block members is not necessarily one, and the block member may be divided into a portion where the steam introduction path is formed and a portion where the exhaust path is formed. Further, the block member is not necessarily a rectangular parallelepiped, and may be, for example, a tubular shape. Further, it is sufficient for the space of the block member to have at least a portion that penetrates the steam introduction path and the exhaust path, and it is sufficient that the valve member has at least a portion in which the steam introduction hole and the exhaust hole are formed. It's enough.

Moreover, in the said invention ( invention 1), the said steam introduction path is formed in the 1st valve | bulb, the said exhaust path is formed in the 2nd valve | bulb, The 1st valve in the said 1st valve | bulb The body has a steam introduction hole that penetrates the first valve body, and the second valve body in the second valve has an exhaust hole that penetrates the second valve body. The first valve body and the second valve body are connected via an interlocking mechanism, and when the interlocking mechanism is operated in one direction, the first valve body is the first valve body. When the second valve body shuts off the exhaust passage of the second valve and operates the interlocking mechanism in the other direction, the steam introduction of the first valve body is cut off. A hole communicates with the steam introduction path of the first valve, and an exhaust hole of the second valve body It may be adapted to communicate with the air path (invention 5). Examples of the interlocking mechanism include a link mechanism and a mechanism using a gear.

In the above invention ( invention 4 ), the positional relationship between the steam introduction path and the exhaust path and the steam introduction hole and the exhaust hole is determined when the first valve body and the second valve body are rotated. Further, it is preferable that the exhaust hole is set to communicate with the exhaust path before the steam introduction hole communicates with the steam introduction path ( Invention 6).

According to the above invention ( Invention 6), even if the pressure in the container rises before the introduction of steam, the exhaust passage is opened before the introduction of steam, so that the pressure in the container is prevented from rising. be able to.

In the above invention ( invention 4 ), the positional relationship between the steam introduction path and the exhaust path and the steam introduction hole and the exhaust hole is determined when the first valve body and the second valve body are rotated. It is preferable that the steam introduction path is set to be shut off before the exhaust path is shut off ( Invention 7).

According to the above invention ( Invention 7), since the steam introduction path is blocked before the exhaust path is blocked, the steam is introduced into the container after the exhaust path is blocked and the pressure in the container rises. Can be prevented.

Secondly, the present invention provides a steam sterilization apparatus comprising a container capable of steam sterilization and the valve mechanism ( Invention 1 to 7) ( Invention 8).

  According to the valve mechanism or the steam sterilization apparatus of the present invention, it is possible to reliably prevent an increase in pressure in the steam sterilization container with a simple structure.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
FIG. 1 is a schematic cross-sectional view of a steam sterilization apparatus according to a first embodiment of the present invention, where (a) shows a state where a steam introduction path and an exhaust path are closed, and (b) shows a steam introduction path and an exhaust. The road is open.

  The steam sterilization apparatus 1A according to the present embodiment includes a container 2A for performing steam sterilization, a block member 3A provided adjacent to the container 2A, and a valve member 4A incorporated in the block member 3A. .

  The valve member 4A includes a rod portion 41A, a substantially disc-shaped first valve body 42A provided in the middle of the rod portion 41A, and a substantially disc-shaped second valve body provided at the lower end portion of the rod portion 41A. 43A. The upper end portion of the rod portion 41A is connected to an actuator or the like (not shown).

  The block member 3A includes a steam introduction path 31A that opens to the container 2A side and the side opposite to the container 2A of the block member 3A and communicates with the inside of the steam generator and the container 2A, and similarly the container 2A of the block member 3A. An exhaust passage 32A that opens to the side and the side opposite to the container 2A and communicates with the outside of the system and the inside of the container 2A is formed. In this embodiment, the steam introduction passage 31A is on the upper side, and the exhaust passage 32A is on the upper side. It is formed on the lower side.

  A substantially central portion of the block member 3A is formed with a hole 35A that penetrates the steam introduction path 31A from the upper surface of the block member 3A to the exhaust path 32A, and the rod portion 41A of the valve member 4A is inserted into the hole 35A. And is designed to slide.

  In the present embodiment, the steam introduction path 31A has a first steam introduction path 311A formed upward from the side surface of the block member 3A to the central part of the block member 3A, and slightly from the central part of the block member 3A to the container 2A. The second steam introduction path 312A is formed so as to descend, and the periphery of the bottom end of the first valve body 42A of the valve member 4A is around the upper end opening of the first steam introduction path 311A. The first contact portion 33A is in contact.

  Similarly, the exhaust passage 32A in the present embodiment includes a first exhaust passage 321A formed upward from the side surface of the block member 3A to the central portion of the block member 3A, and a slight amount from the central portion of the block member 3A to the container 2A. The second exhaust passage 322A is formed so as to descend downward, and the periphery of the bottom end of the second valve body 43A of the valve member 4A is applied around the upper end opening of the first exhaust passage 321A. The second abutting portion 34A is in contact.

  As shown in FIG. 1A, when the valve member 4A is positioned on the lower side, the peripheral edge of the bottom surface of the first valve body 42A of the valve member 4A comes into contact with the contact portion 33A of the steam introduction passage 31A, and the first The upper end opening of the steam introduction path 311A is closed, and the steam introduction path 31A is closed. At the same time, the bottom peripheral edge portion of the second valve body 43A of the valve member 4A comes into contact with the contact portion 34A of the exhaust passage 32A, the upper end opening of the second exhaust passage 321A is closed, and the exhaust passage 32A is closed. It becomes.

  On the other hand, as shown in FIG. 1B, when the valve member 4A moves upward, the first valve body 42A of the valve member 4A is separated from the contact portion 33A of the steam introduction path 31A, and the first steam introduction is performed. The upper end opening of the path 311A is opened, and the steam introduction path 31A is opened. At the same time, the second valve body 43A of the valve member 4A is separated from the contact portion 34A of the exhaust passage 32A, the upper end opening of the second exhaust passage 321A is opened, and the exhaust passage 32A is opened.

  Thus, in the steam sterilization apparatus 1A according to the present embodiment, the first valve body 42A and the second valve body 43A are connected by the rod portion 41A and operate integrally.

  In order to perform the steam sterilization using the steam sterilization apparatus 1A, the container 2A contains a material to be sterilized such as a filler, and as shown in FIGS. 1 (a) to 1 (b) The rod 41A of the member 4A is moved upward by an actuator or the like, the first valve body 42A of the valve member 4A is separated from the contact portion 33A of the steam introduction path 31A, and the steam introduction path 31A is opened. Then, the steam generated by the steam generator is introduced into the container 2A through the steam introduction path 31A, and the sterilized material in the container 2A is steam sterilized.

  At this time, since the second valve element 43A of the valve member 4A is separated from the contact portion 34A of the exhaust passage 32A and the exhaust passage 32A is open, the sterilized gas passes through the exhaust passage 32A from the container 2A. Discharged outside. Thus, in the steam sterilization apparatus 1A according to the present embodiment, when the steam introduction path 31A is opened and steam is introduced, the exhaust path 32A is always open, so the pressure in the container 2A does not increase. .

[Second Embodiment]
FIG. 2 is a schematic cross-sectional view of a steam sterilization apparatus according to a second embodiment of the present invention, and FIG. 3 is an exploded perspective view of a valve mechanism in the same embodiment. FIG. 4 is a side view of the valve mechanism in the embodiment, where (a) shows a state where the steam introduction path and the exhaust path are closed, (b) shows a state where only the exhaust path is opened, and (c) Indicates a state in which the steam introduction path and the exhaust path are open.

  The steam sterilization apparatus 1B according to the present embodiment includes a container 2B for performing steam sterilization, a block member 3B provided adjacent to the container 2B, and a valve member 5B incorporated in the block member 3B. .

  The valve member 5B has a cylindrical shape, and is formed with a steam introduction hole 51B and an exhaust hole 52B so as to penetrate in the radial direction. In this embodiment, the steam introduction hole 51B is on the upper side, and the exhaust hole 52B is formed on the lower side. In the present embodiment, the cross section of the steam introduction hole 51B has a circular shape, but the cross section of the exhaust hole 52B has a horizontally long circular shape, and the long diameter of the exhaust hole 52B has a steam introduction hole. It is set larger than the hole diameter of 51B. The upper end portion of the valve member 5B is connected to an actuator or the like (not shown).

  The block member 3B is formed with a cylindrical space portion 36B penetrating from the upper surface to the lower surface of the block member 3B, and the valve member 5B is inserted into the space portion 36B so as to rotate.

  The block member 3B includes a first steam introduction path 311B that opens on the side surface of the block member 3B opposite to the container 2B and reaches the space portion 36B, and opens on the container 2B side of the block member 3B and enters the space portion 36B. A steam introduction path 31B composed of a second steam introduction path 312B is formed, a first exhaust path 321B that opens to the side surface of the block member 3B opposite to the container 2B and reaches the space 36B, and a block An exhaust path 32B including a second exhaust path 322B that opens to the container 2B side of the member 3B and reaches the space 36B is formed. The steam introduction path 31B communicates with a steam generator (not shown) and the inside of the container 2B, and the exhaust path 32B communicates with the outside of the system and the inside of the container 2B.

  In the present embodiment, the steam introduction path 31B is formed on the upper side and the exhaust path 32B is formed on the lower side so as to correspond to the steam introduction hole 51B and the exhaust hole 52B of the valve member 5B. Moreover, both the steam introduction path 31B and the exhaust path 32B have a circular cross section.

  As shown in FIG. 4 (a), when the steam introduction hole 51B and the exhaust hole 52B of the valve member 5B are at positions substantially perpendicular to the steam introduction path 31B and the exhaust path 32B of the block member 3B, the first An opening to the space 36B of the steam introduction path 311B, an opening to the space 36B of the second steam introduction path 312B, an opening to the space 36B of the first exhaust path 321B, and a space of the second exhaust path 322B. The openings for 36B are respectively closed by the peripheral wall of the valve member 5B, and the steam introduction path 31B and the exhaust path 32B are closed.

  As shown in FIG. 4C, the steam introduction holes 51B of the valve member 5B are arranged in a straight line with respect to the steam introduction path 31B of the block member 3B, and the exhaust holes 52B of the valve member 5B are the exhaust paths 32B of the block member 3B. , The first steam introduction path 311B, the steam introduction hole 51B, and the second steam introduction path 312B communicate with each other, and the first exhaust path 321B and the exhaust hole 52B The second exhaust path 322B communicates with each other, and the steam introduction path 31B and the exhaust path 32B are opened.

  Thus, in the steam sterilization apparatus 1B according to the present embodiment, the steam introduction hole 51B and the exhaust hole 52B are integrally formed because they are formed in the same valve member 5B.

  By the way, in this embodiment, since the cross section of the exhaust hole 52B has a horizontally long circular shape, and the major axis of the exhaust hole 52B is set larger than the diameter of the steam introduction hole 51B, the steam introduction path 31B and the exhaust path 32B. When the valve member 5B is rotated in a predetermined direction from the closed state to the open state of the steam introduction path 31B and the exhaust path 32B, the steam introduction path 31B is closed as shown in FIG. The exhaust hole 52B communicates with the first exhaust path 321B and the second exhaust path 322B, and only the exhaust path 32B is open.

  In this way, the steam introduction path 31B is closed and only the exhaust path 32B is opened, so that even if the pressure in the container 2B rises before the steam is introduced, the steam is introduced before the steam is introduced. Since the path 32B is opened, it is possible to prevent the pressure in the container 2B from increasing.

  In order to perform the steam sterilization using the steam sterilization apparatus 1B, the container 2B contains a material to be sterilized, such as a filler, and as shown in FIGS. 4 (a) to 4 (b) The member 5B is rotated by an actuator or the like, and the exhaust hole 52B of the valve member 5B is communicated with the exhaust passage 32B of the block member 3B so that only the exhaust passage 32B is opened, as shown in FIG. The steam introduction hole 51B of the valve member 5B is also communicated with the steam introduction path 31B of the block member 3B so that both the steam introduction path 31B and the exhaust path 32B are open. Then, the steam generated by the steam generator is introduced into the container 2B through the steam introduction path 31B, and the sterilized material in the container 2B is steam sterilized. The sterilized gas is discharged out of the system through the exhaust path 32B from the container 2B.

  Thus, in the steam sterilization apparatus 1B according to the present embodiment, when the steam introduction path 31B is opened and steam is introduced, the exhaust path 32B is always open, so the pressure in the container 2B does not increase. .

[Third Embodiment]
FIG. 5 is a perspective view of a valve mechanism in the steam sterilization apparatus according to the third embodiment of the present invention. As shown in FIG. 5, the valve mechanism according to the present embodiment includes a first ball valve 301C having a spherical first valve body 501C and a second ball valve 502C having a spherical second valve body 502C. Ball valve 302C and a link mechanism 53C for connecting the first valve body 501C and the second valve body 502C.

  The first ball valve 301C is formed with a steam introduction path 31C that opens to the container side and the side opposite to the container, and the first ball valve 301C is located in the middle of the steam introduction path 31C. The second ball valve 302C has an exhaust path 32C that opens to the container side and the opposite side of the container, and the second ball valve 302C is located in the middle of the exhaust path 32C. The steam introduction path 31C communicates with the interior of the steam generator and the container, and the exhaust path 32C communicates with the outside of the system and the interior of the container. The cross sections of the steam introduction path 31C and the exhaust path 32C are both circular.

  A steam introduction hole 51C is formed in the first valve body 501C so as to penetrate the first valve body 501C, and an exhaust hole is provided in the second valve body 502C so as to penetrate the second valve body 502C. 52C is formed. Here, the cross section of the steam introduction hole 51C is circular, and the cross section of the exhaust hole 52C is preferably a horizontally long circular shape whose major diameter is larger than the diameter of the steam introduction hole 51C. Accordingly, when the first valve body 501C and the second valve body 502C are operated simultaneously, the exhaust path 32C can be opened before the steam introduction path 31C is opened, and the exhaust path 32C is blocked. Since the steam introduction path 31C can be shut off before the pressure rises, the pressure in the container can be prevented from rising. That is, even when the pressure in the container rises before the introduction of steam, the exhaust passage 32C opens before the introduction of steam, so that the pressure in the container can be prevented from increasing, It is also possible to prevent the pressure in the container from rising due to the introduction of steam from the steam introduction path 31C into the container after the passage 32C is blocked.

  The first valve body 501C is connected to a first drive shaft 531C that protrudes outside the first ball valve 301C. The second valve body 502C is connected to the outside of the second ball valve 302C. The protruding second drive shaft 532C is connected. A rotary drive source (motor, actuator, etc.) (not shown) is connected to the first drive shaft 531C or the second drive shaft 532C.

  In this embodiment, the first drive shaft 531C of the first ball valve 301C and the second drive shaft 532C of the second ball valve 302C have the first ball valve 301C and the second ball valve 302C in parallel. In this state, they are linked via a link mechanism 53C. However, the present invention is not limited to this, and the first ball valve 301C and the second ball valve 302C may be interlocked by an interlocking mechanism using a gear or the like.

  When the link mechanism 53C operates in one direction, the steam introduction hole 51C of the first valve body 501C communicates with the steam introduction path 31C, the steam introduction path 31C is opened, and the second valve body 502C The exhaust hole 52C and the exhaust path 32 communicate with each other, and the exhaust path 32 is opened. When the link mechanism 53C operates in the other direction, the first valve body 501C shuts off the steam introduction path 31C, the steam introduction path 31C is closed, and the second valve body 502C passes through the exhaust path 32. It shuts off and the exhaust passage 32 is closed. Thus, in the valve mechanism according to the present embodiment, when the first valve body 501C and the second valve body 502C are connected by the link mechanism 53C, and the steam introduction path 31C is opened and steam is introduced. Since the exhaust passage 32C is always open, it is possible to reliably prevent the pressure in the container from increasing.

  The embodiment described above is described for facilitating understanding of the present invention, and is not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

  For example, the containers 2A and 2B and the block members 3A and 3B in the steam sterilization apparatuses 1A and 1B may be separated, and the shapes of the containers 2A and 2B are not particularly limited. Further, the block member 3B in the steam sterilization apparatus 1B may be divided into a part where the steam introduction path 31B is formed and a part where the exhaust path 32B is formed. In this case, the steam introduction hole 51B in the valve member 5B. And parts other than the exhaust hole 52B do not need to be cylindrical.

  The valve mechanism and the steam sterilization apparatus of the present invention are steam sterilization apparatuses for performing steam sterilization without increasing pressure, for example, towers in the case of steam sterilizing fillers, or instruments used in hospitals, etc. Suitable for steam sterilizers for steam sterilization.

It is a schematic sectional drawing of the steam sterilizer which concerns on the 1st Embodiment of this invention. It is a schematic sectional drawing of the steam sterilizer which concerns on the 2nd Embodiment of this invention. It is a disassembled perspective view of the valve mechanism in the embodiment. It is a side view of the valve mechanism in the embodiment. It is a perspective view of the valve mechanism in the steam sterilizer which concerns on the 3rd Embodiment of this invention. It is the schematic of the conventional steam sterilizer.

Explanation of symbols

1A, 1B, 1P ... Steam sterilizers 2A, 2B, 2P ... Containers 3A, 3B ... Block members 31A, 31B ... Steam introduction passages 32A, 32B ... Exhaust passages 33A, 34A ... Contact portions 36B ... Space portions 301C, 302C ... Ball valve 4A, 5B ... Valve member 42A ... First valve element 43A ... Second valve element 51B, 51C ... Steam inlet hole 52B, 52C ... Exhaust hole 53C ... Link mechanism

Claims (8)

A valve mechanism capable of preventing an increase in pressure in a container capable of steam sterilization,
A steam introduction path that communicates with the interior of the container, a first valve body that opens and closes the steam introduction path, an exhaust path that communicates with the interior of the container, and a second valve body that opens and closes the exhaust path. Prepared,
The first valve body and the second valve body are connected to each other, and when the first valve body closes the steam introduction path, the second valve body closes the exhaust path, A valve mechanism for a steam sterilization container, wherein the first valve body operates integrally so that the second valve body opens the exhaust passage when the steam introduction passage opens . In the middle of the steam introduction path, a first abutting portion capable of closing the steam introduction path by contacting the first valve body is formed, and in the middle of the exhaust path, A second abutting portion capable of closing the exhaust passage is formed by abutting the second valve body, and the first valve body and the second valve body are mutually connected by a connecting member. Are connected,
When the connecting member is operated in one direction, the first valve body and the second valve body are respectively separated from the first contact portion of the steam introduction passage and the second contact portion of the exhaust passage. When separated and the connecting member is moved in the other direction, the first valve body and the second valve body are respectively in contact with the first contact portion of the steam introduction path and the second contact of the exhaust path. The valve mechanism for a steam sterilization container according to claim 1, wherein the valve mechanism abuts on the contact portion.   The first valve body and the second valve body have a substantially plate-like shape, and a peripheral edge portion of the first valve body and a peripheral edge portion of the second valve body are respectively in the steam introduction path. The valve mechanism for a steam sterilization container according to claim 2, wherein the valve mechanism is in contact with the first contact portion and the second contact portion of the exhaust passage. The steam introduction path and the exhaust path are formed in a block member, and the block member is formed with a cylindrical space that penetrates the steam introduction path and the exhaust path.
The first valve body and the second valve body are integrally formed or connected as a cylindrical valve member that is rotatably inserted into a cylindrical space portion of the block member, and the valve member Are formed so that each of the steam introduction hole and the exhaust hole penetrates in the radial direction,
By rotating the valve member, the valve member shuts off the steam introduction path and the exhaust path of the block member, and the steam introduction hole and the exhaust hole of the valve member are respectively the steam introduction path and the exhaust of the block member. And when the steam introduction hole of the valve member communicates with the steam introduction passage of the block member, the exhaust hole of the valve member also communicates with the exhaust passage of the block member. The valve mechanism for a steam sterilization container according to claim 1. The steam introduction path is formed in a first valve, and the exhaust path is formed in a second valve;
The first valve body in the first valve has a steam introduction hole penetrating the first valve body, and the second valve body in the second valve has the second valve body in the first valve body. An exhaust hole penetrating the valve body 2 is formed,
The first valve body and the second valve body are connected via an interlocking mechanism,
When the interlocking mechanism is operated in one direction, the first valve body blocks the steam introduction path of the first valve, and the second valve body blocks the exhaust path of the second valve. When the interlocking mechanism is operated in the other direction, the steam introduction hole of the first valve body communicates with the steam introduction passage of the first valve, and the exhaust hole of the second valve body is the second The valve mechanism for a steam sterilization container according to claim 1, wherein the valve mechanism communicates with an exhaust passage of the valve. The positional relationship between the steam introduction path and the exhaust path and the steam introduction hole and the exhaust hole is such that when the first valve body and the second valve body are rotated, the steam introduction hole is The valve mechanism for a steam sterilization container according to claim 4 , wherein the exhaust hole is set so as to communicate with the exhaust path before communicating with the steam introduction path. The positional relationship between the steam introduction path and the exhaust path and the steam introduction hole and the exhaust hole is such that the exhaust path is blocked when the first valve body and the second valve body are rotated. The valve mechanism for a steam sterilization container according to claim 4 , wherein the steam introduction path is set to be shut off before starting.   A steam sterilization apparatus comprising a container capable of performing steam sterilization and the valve mechanism according to any one of claims 1 to 7.

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